Handheld refrigeration fan

Abstract

The handheld refrigeration fan comprises a fan head and a handheld part, the fan head comprises a fan shell, an air passing channel is formed in the fan shell, a connecting through hole penetrating through the inside and the outside of the air passing channel is formed in the fan shell, and a conduction piece is arranged on the outer surface of the handheld part. A conduction piece is arranged on the outer surface of the handheld part, a refrigeration device is arranged in the handheld part, the refrigeration end of the refrigeration device is connected with the conduction piece in a heat conduction mode, and the heat dissipation end of the refrigeration device penetrates through the connection through hole to be communicated with the air passing channel. In the holding and using process of a consumer, stuffiness cannot be formed, the cooling effect of the fan can be improved through palm center refrigeration, meanwhile, heat generated by the cold and hot semiconductors can be dissipated in time through high-speed air flow passing through the air channel, heat accumulation cannot be formed, the manufacturing cost of a heat dissipation mechanism can be saved, and the manufacturing cost of the refrigeration fan is effectively saved.

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 in our daily lives, used to cool off in hot weather. Due to their practical function, fans are widely used and therefore have strong 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 fan's cooling effect. This is because the palms are highly sensitive to temperature, and the information perceived is amplified by the brain, influencing the body's perception. If the palms feel stuffy, the subconscious mind tends to perceive a hot environment; conversely, if the palms feel 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 effectiveness. Utility Model Content

[0005] The purpose of this utility model is to provide a handheld cooling fan with a conductive plate on the outer surface of the handheld part. The conductive plate achieves a cooling effect after being activated by the cooling device. When the consumer holds and uses it, 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 solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a handheld cooling fan, comprising a fan head and a handheld part integrally connected to the fan head. The fan head includes a fan housing, and an air passage is formed inside the fan housing. A connecting through hole is provided on the fan housing, penetrating the inside and outside of the air passage. A conductive element is provided on the outer surface of the handheld part. A cooling device is provided inside the handheld part. The cooling device includes a cooling end and a heat dissipation end. The cooling end of the cooling device is thermally connected to the conductive element. The heat dissipation end of the cooling device is provided through the connecting through hole and communicates with the air passage.

[0007] Preferably, the heat dissipation end of the refrigeration device protrudes from the inner wall of the air duct.

[0008] Preferably, the cooling device includes a heat sink and a hot and cold semiconductor, the cooling end of the hot and cold semiconductor is thermally connected to a conductive element, the heating end of the hot and cold semiconductor is thermally connected to the heat sink, and the heat sink is provided with a through-hole.

[0009] Preferably, the cooling device is located at the end where the handheld part is connected to the fan head, and the heat dissipation end of the cooling device protrudes from the end face of the handheld part. The handheld part is integrally connected to the fan head through a connector.

[0010] Preferably, the connector is an annular collar, which is fitted around the heat dissipation end of the refrigeration device. The lower end of the annular collar is fixedly connected to the hand-held part, and the upper end of the annular collar is fixedly connected to the fan head.

[0011] Preferably, the conductive member is an L-shaped member, the short arm of which extends from the outside of the handheld part into the inside of the handheld part and is heat-conductingly connected to the cooling device, and the long arm of which is attached to the outer surface of the handheld part and extends along the length of the handheld part.

[0012] Preferably, a heat-insulating gasket is provided between the short arm portion of the L-shaped component and the handheld portion housing.

[0013] Preferably, the handheld part includes a front handheld shell and a rear handheld shell that are connected to each other, forming a cavity between the front handheld shell and the rear handheld shell. A circuit board assembly and a battery are installed in the cavity. The battery is electrically connected to the circuit board assembly. The circuit board assembly is electrically connected to 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 handheld part housing and extend outward from the through hole.

[0014] Preferably, the fan housing is provided with an air inlet and an air outlet, both of which are connected to an air duct. An internal support is provided inside the air duct, and a motor base is provided on the side of the internal support facing the air inlet. A drive fan blade assembly is installed on the motor base, and the drive fan blade assembly guides the airflow located at the air inlet through the air duct and blows it outward from the air outlet.

[0015] Preferably, the internal support is disposed inside the air outlet, and the side of the internal support facing away from the motor base is provided with a device housing cavity. A display screen is installed inside the device housing cavity, and a light-transmitting cover is sealed at the opening of the device housing cavity, so that the display content of the display screen can be displayed outward through the light-transmitting cover.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention features a conductive plate on the outer surface of the handheld part. The conductive plate achieves a cooling effect through the action of the cooling device. When the user holds and uses the device, there is no stuffiness. Instead, the cooling effect of the fan is 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 blowing effect, effectively saving the manufacturing cost of the cooling fan. Attached Figure Description

[0018] Figure 1 Explosion of the structure of this utility model Figure 1 ;

[0019] Figure 2 Explosion of the structure of this utility model Figure 2 ;

[0020] Figure 3 Explosion of the structure of this utility model Figure 3 ;

[0021] Figure 4 This is a schematic diagram of the internal support structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the present utility model. Figure 1 ;

[0023] Figure 6 This is a schematic diagram of the structure of the present utility model. Figure 2 .

[0024] In the diagram: 1. Fan head; 11. Fan housing; 12. Air inlet; 13. Air outlet; 14. Connecting through hole; 15. Drive fan blade assembly; 16. Internal support; 161. Motor base; 162. Equipment housing cavity; 17. Display screen; 18. Light-transmitting cover; 2. Handheld part; 21. Handheld front shell; 22. Handheld rear shell; 3. Cooling device; 31. Heating and cooling semiconductor; 32. Heat sink; 4. Connector; 5. Conductive component; 6. Thermal insulation pad; 7. Circuit board assembly; 71. Control buttons; 72. USB interface; 8. Battery. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-6A handheld cooling fan includes a fan head 1 and a handheld part 2 integrally connected to the fan head 1. The fan head 1 includes a fan housing 11, with an air passage formed inside the fan housing 11. The fan housing 11 has a connecting through hole 14 penetrating the inside and outside of the air passage. A conductive element 5 is provided on the outer surface of the handheld part 2. A cooling device 3 is provided inside the handheld part 2. The cooling device 3 includes a cooling end and a heat dissipation end. The cooling end of the cooling device 3 is thermally connected to the conductive element 5. The cooling device 3 includes a heat sink 32 and a hot / cold semiconductor 31. The cooling end of the hot / cold semiconductor 31 is connected to the conductive element 5. The heat-conducting connection is provided, with the heating end of the hot and cold semiconductor 31 connected to the heat sink 32 through the through hole 14 and connected to the air passage. The heat sink 32 on the heat dissipation end of the cooling device 3 is provided through the through hole 14 and connected to the air passage. The heat sink 32 protrudes from the inner wall of the air passage. Since the heat generated by the heat sink 32 can be carried away by the high-speed airflow in time, the heat sink 32 will not accumulate heat. Therefore, although the high-speed airflow is performing heat dissipation, the heat value carried per unit flow is low. Therefore, when the airflow acts on the human body, the human body can hardly feel the heat, thus not affecting the normal blowing effect of the fan.

[0027] The cooling device 3 is located at the end where the handheld part 2 is connected to the fan head 1. The heat dissipation end of the cooling device 3 protrudes from the end face of the handheld part 2. The handheld part 2 is integrally connected to the fan head 1 through a connector 4. The connector 4 is an annular collar. The annular collar is fitted around the heat dissipation end of the cooling device 3. The lower end of the annular collar is fixedly connected to the handheld part 2, and the upper end of the annular collar is fixedly connected to the fan head 1.

[0028] The conductive component 5 is an L-shaped component. The short arm of the L-shaped component extends from the outside of the handheld part 2 into the inside of the handheld part 2 and is thermally connected to the cooling device 3. The long arm of the L-shaped component is attached to the outer surface of the handheld part 2 and extends along the length of the handheld part 2. A heat insulation pad 6 is provided between the short arm of the L-shaped component and the shell of the handheld part 2. The heat insulation pad 6 is used to prevent the cooling effect of the conductive component 5 from being conducted to the shell of the handheld part 2, thus preventing energy loss.

[0029] The fan housing 11 is provided with an air inlet 12 and an air outlet 13, both of which are connected to an air duct. An internal support 16 is provided inside the air duct, and a motor base 161 is provided on the side of the internal support 16 facing the air inlet 12. A drive fan blade assembly 15 is mounted on the motor base 161. The drive fan blade assembly 15 guides the airflow located at the air inlet 12 through the air duct and blows it outward from the air outlet 13. The internal support 16... Located inside the air outlet 13, the internal support 16 has an equipment housing cavity 162 on the side facing away from the motor base 161. A display screen 17 is installed inside the equipment housing cavity 162. A light-transmitting cover 18 is sealed at the opening of the equipment housing cavity 162. The display content of the display screen 17 can be displayed outward through the light-transmitting cover 18. The display screen 17 is used to display the working mode and working status of the drive fan blade assembly 15 and / or the cooling device 3, or the power level of the battery 8. The handheld part 2 includes a front handheld shell 21 and a rear handheld shell 22 that are connected to each other, forming a cavity between the front handheld shell 21 and the rear handheld shell 22. A circuit board assembly 7 and a battery 8 are installed in the cavity. The battery 8 is electrically connected to the circuit board assembly 7. The circuit board assembly 7 is electrically connected to a control button 71 and a USB interface 72. Both the control button 71 and the USB interface 72 are located in a pre-set through hole in the handheld part shell and extend outward from the through hole. The control button 71 is used to adjust the working status and working mode of the cooling device 3 and the fan blade assembly 15. The USB interface 72 can charge the battery 8 when connected to an external power source using a charging cable.

[0030] In summary, this utility model provides a conductive plate 5 on the outer surface of the handheld part 2. The conductive plate 5 achieves a cooling effect through the action of the cooling device 3. When the consumer holds and uses it, it will not feel stuffy. 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 31 can be dissipated in time by the high-speed airflow through the air duct, and heat accumulation will not occur. Therefore, the manufacturing cost of the heat dissipation mechanism can be saved without affecting the blowing effect, thus effectively saving the manufacturing cost of the cooling fan.

[0031] 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.

[0032] 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 refrigeration fan, comprising a fan head (1) and a handheld part (2) integrally connected with the fan head (1), characterized in that: The fan head (1) comprises a fan shell (11) which forms an air passage inside, a connecting through hole (14) is arranged on the fan shell (11) and penetrates the air passage, a conducting member (5) is arranged on the outer surface of the handheld part (2), a refrigeration device (3) is arranged inside the handheld part (2), the refrigeration device (3) comprises a refrigeration end and a heat dissipation end, the refrigeration end of the refrigeration device (3) is in thermal conduction connection with the conducting member (5), the heat dissipation end of the refrigeration device (3) penetrates the connecting through hole (14) and is in communication with the air passage.

2. A hand held cooling fan as claimed in claim 1 wherein: The heat dissipation end of the refrigeration device (3) protrudes from the inner wall of the air passage.

3. The handheld cooling fan of claim 1, wherein: The refrigeration device (3) comprises a heat sink (32) and a cold-hot semiconductor (31), the refrigeration end of the cold-hot semiconductor (31) is in thermal conduction connection with the conducting member (5), the heating end of the cold-hot semiconductor (31) is in thermal conduction connection with the heat sink (32), and the heat sink (32) penetrates the connecting through hole (14).

4. The handheld cooling fan of claim 1, wherein: The refrigeration device (3) is arranged at the end of the handheld part (2) connected with the fan head (1), the heat dissipation end of the refrigeration device (3) protrudes from the end surface of the handheld part (2), and the handheld part (2) is integrally connected with the fan head (1) through a connecting member (4).

5. A hand held cooling fan as claimed in claim 4 wherein: The connecting member (4) is an annular sleeve, the annular sleeve is arranged on the circumferential direction of the heat dissipation end of the refrigeration device (3), the lower end of the annular sleeve is fixedly connected with the handheld part (2), and the upper end of the annular sleeve is fixedly connected with the fan head (1).

6. The handheld cooling fan of claim 1, wherein: The conducting member (5) is an L-shaped member, the short arm part of the L-shaped member extends into the handheld part (2) from the outer side of the handheld part (2) and is in thermal conduction connection with the refrigeration device (3), and the long arm part of the L-shaped member is arranged on the outer surface of the handheld part (2) and extends along the length direction of the handheld part (2).

7. A hand held cooling fan as claimed in claim 6 wherein: A temperature insulation gasket (6) is arranged between the short arm part of the L-shaped member and the shell of the handheld part (2).

8. A hand held cooling fan as claimed in any one of claims 1, 4, 5, 6, 7 wherein: The handheld part (2) comprises a handheld front shell (21) and a handheld rear shell (22) which are connected with each other, a cavity is formed between the handheld front shell (21) and the handheld rear shell (22), a circuit board assembly (7) and a storage battery (8) are arranged in the cavity, the storage battery (8) is electrically connected with the circuit board assembly (7), the circuit board assembly (7) is electrically connected with a control button (71) and a USB interface (72), and the control button (71) and the USB interface (72) are arranged in the through hole of the handheld part shell and extend outward from the through hole.

9. The handheld cooling fan of claim 1, wherein: An air inlet (12) and an air outlet (13) are arranged on the fan shell (11), the air inlet (12) and the air outlet (13) are arranged in communication with the air passage, an internal support (16) is arranged in the air passage, a motor base (161) is arranged on the side of the internal support (16) facing the air inlet (12), a driving fan blade group (15) is arranged on the motor base (161), and the driving fan blade group (15) guides the air flow at the air inlet (12) to blow out from the air outlet (13) after passing through the air passage.

10. The hand-held cooling fan of claim 9, wherein: The internal support (16) is arranged inside the air outlet (13), and a device accommodating cavity (162) is arranged on the side of the internal support (16) away from the motor base (161), a display screen (17) is installed in the device accommodating cavity (162), and a light-transmitting cover (18) is encapsulated at the cavity opening of the device accommodating cavity (162), and the display content of the display screen (17) can be displayed outward through the light-transmitting cover (18).

Images