Portable cooling fan

Abstract

Provided is a portable cooling fan that does not form a heat pocket, reduces the manufacturing cost of the heat dissipation mechanism, and can effectively reduce the manufacturing cost of the cooling fan. 【Solution means】The portable cooling fan includes a fan head and a gripping part. The fan head includes a fan housing, a duct is formed inside the fan housing, and a connection through hole is provided in the fan housing to penetrate the inside and outside of the duct. A conductive member is provided on the outer surface of the gripping part, and a cooling device is provided inside the gripping part. The cooling end of the cooling device is thermally conductively connected to the conductive member, and the heat dissipation end of the cooling device is provided to communicate with the duct through the connection through hole. In the present invention, the conductive member achieves a cooling effect by the action of the cooling device. During the process of being gripped and used by the consumer, there is no feeling of heat, and the cooling of the palm can improve the cool feeling. In addition, the hot air generated by the thermoelectric semiconductor is timely discharged by the high-speed air flow in the duct.

Description

Technical Field

[0001] The present invention relates to the technical field of fans, specifically a portable cooling fan.

Background Art

[0002] A fan is a household electrical appliance commonly seen in our daily life. It generates wind in a hot weather environment to obtain a cooling feeling. Due to its practical function, it has been widely popularized and applied, and thus has a very large market demand.

[0003] A portable fan refers to a small fan with a gripping handle on the fan body. When in use, carrying can be realized by gripping the gripping handle, and because of its high portability, it is favored by a wide range of consumers.

[0004] However, when consumers use a portable fan for a long time, the phenomenon that the palm feels hot and sweats appears. Such a poor physical feeling affects the consumer's usage experience, further reduces the cooling feeling of the fan. The palm of the human hand is a part sensitive to temperature, and the perceived information is amplified by the cranial nerves and then affects the human body's perception and judgment. When the palm feels hot, the human body tends to subconsciously think that it is in a hot environment at present. Therefore, how to improve the poor physical feeling of the portable fan formed after long-term gripping is very important for improving the usage effect of the portable fan.

Summary of the Invention

Problems to be Solved by the Invention

[0005] The present invention provides a portable cooling fan, in which a conductive plate is provided on the outer surface of the gripping part, and the conductive plate achieves a cooling effect under the action of a cooling device. During the process of the consumer gripping and using it, there is no feeling of heat, and the cooling effect of the fan can be improved by cooling the palm. Moreover, the heat generated during the energy exchange process of the thermoelectric semiconductor is timely released by the high-speed air flow in the duct, without forming a heat accumulation, so as to reduce the manufacturing cost of the heat dissipation mechanism on the premise of not affecting the fan effect, effectively reduce the manufacturing cost of the cooling fan, and solve the problems in the above background technology.

Means for Solving the Problems

[0006] To achieve the above object, the present invention provides the following technical means. The portable cooling fan includes a fan head and a gripping part integrally connected to the fan head. The fan head includes a fan housing, a duct is formed inside the fan housing, a connection through hole penetrating the inside and outside of the duct is provided on the fan housing, a conductive member is provided on the outer surface of the gripping part, a cooling device is provided inside the gripping part, the cooling device includes a cooling end and a heat dissipation end, the cooling end of the cooling device is thermally conductively connected to the conductive member, and the heat dissipation end of the cooling device is provided through the connection through hole and communicates with the duct.

[0007] Preferably, the heat dissipation end of the cooling device is provided protruding from the inner wall surface of the duct.

[0008] Preferably, the cooling device includes a radiator and a thermoelectric semiconductor. The cooling end of the thermoelectric semiconductor is thermally conductively connected to the conductive member, the heat generating end of the thermoelectric semiconductor is thermally conductively connected to the radiator, and the radiator is provided through the connection through hole.

[0009] Preferably, the cooling device is provided at the end of the gripping part connected to the fan head, the heat dissipation end of the cooling device is provided protruding from the end surface of the gripping part, and the gripping part is integrally connected to the fan head by a connecting member.

[0010] Preferably, the connecting member is an annular ferrule, the annular ferrule is fitted in the circumferential direction of the heat dissipation end of the cooling device, the lower end of the annular ferrule is fixedly connected to the gripping portion, and the upper end of the annular ferrule is fixedly connected to the fan head.

[0011] Preferably, the conductive member is an L-shaped member, the short arm portion of the L-shaped member enters from the outside of the gripping portion into the inside of the gripping portion and is thermally conductively connected to the cooling device, and the long arm portion of the L-shaped member is in close contact with the outer surface of the gripping portion and extends along the longitudinal direction of the gripping portion.

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

[0013] Preferably, the gripping portion includes a gripping front housing and a gripping rear housing that are connectable to engage with each other, a receiving cavity is formed between the gripping front housing and the gripping rear housing, a circuit board assembly and a storage battery are mounted in the receiving cavity, the storage battery is electrically connected to the circuit board assembly, a control button and a USB interface are electrically connected and provided to the circuit board assembly, and both the control button and the USB interface are provided in a through hole provided in advance in the housing of the gripping portion and extend outwards from the through hole.

[0014] Preferably, an air inlet and an air outlet are provided in the fan housing, both the air inlet and the air outlet are provided in communication with a duct, an internal frame is provided in the duct, a motor base is provided on the air inlet side of the internal frame, a blower blade group is attached to the motor base, and the blower blade group guides the air at the air inlet so as to blow out to the outside from the air outlet after flowing through the duct.

[0015] Preferably, the internal frame is provided inside the exhaust port, an equipment accommodation cavity is provided on the side of the internal frame opposite to the motor base, a display is mounted in the equipment accommodation cavity, a light-transmitting cover is sealed to the opening of the equipment accommodation cavity, and the display content is displayed outside through the light-transmitting cover.

Advantages of the Invention

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows.

[0017] In the present invention, a conductive plate is provided on the outer surface of the gripping part, and the conductive plate achieves a cooling effect by the action of the cooling device. During the process of being gripped and used by the consumer, there is no feeling of heat, and the cooling effect of the fan can be improved by cooling the palm. In addition, the heat generated during the energy exchange process of the thermoelectric semiconductor is timely released by the high-speed air flow in the duct, and no heat accumulation is formed, so the manufacturing cost of the heat dissipation mechanism can be reduced on the premise of not affecting the fan effect, and the manufacturing cost of the cooling fan can be effectively reduced.

Brief Description of the Drawings

[0018]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Embodiments for Carrying Out the Invention

[0019] Hereinafter, while referring to the drawings in the embodiments of the present invention, the technical means in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative labor shall fall within the protection scope of the present invention.

[0020] As shown in FIGS. 1 to 6, the portable cooling fan includes a fan head 1 and a gripping portion 2 integrally connected to the fan head 1. The fan head 1 includes a fan housing 11. A duct is formed inside the fan housing 11. The fan housing 11 is provided with a connection through hole 14 penetrating the inside and outside of the duct. A conductive member 5 is provided on the outer surface of the gripping portion 2. A cooling device 3 is provided inside the gripping portion 2. The cooling device 3 includes a cooling end and a heat dissipation end. The cooling end of the cooling device 3 is thermally conductively connected to the conductive member 5. The cooling device 3 includes a radiator 32 and a thermoelectric cooler 31. The cooling end of the thermoelectric cooler 31 is thermally conductively connected to the conductive member 5. The heat generating end of the thermoelectric cooler 31 is thermally conductively connected to the radiator 32. The radiator 32 on the heat dissipation end of the cooling device 3 is provided through the connection through hole 14 and communicates with the duct. The radiator 32 is provided protruding from the inner wall surface of the duct. Since the heat quantity by the radiator 32 is timely released by the high-speed air flow, no heat accumulation phenomenon occurs in the radiator 32. Thus, although the high-speed air flow is performing the heat dissipation work, the heat quantity carried by its unit flow rate is low. Therefore, when the air flow acts on the human body, the human body hardly feels the presence of heat quantity, thereby not affecting the normal air blowing effect of the fan.

[0021] The cooling device 3 is provided at the end of the gripping portion 2 connected to the fan head 1. The heat dissipation end of the cooling device 3 is provided protruding from the end surface of the gripping portion 2. The gripping portion 2 is integrally connected to the fan head 1 by a connecting member 4. The connecting member 4 is an annular ferrule. The annular ferrule is fitted in the circumferential direction of the heat dissipation end of the cooling device 3. The lower end of the annular ferrule is fixedly connected to the gripping portion 2. The upper end of the annular ferrule is fixedly connected to the fan head 1.

[0022] The above-mentioned conductive member 5 is an L-shaped member. The short arm portion of the L-shaped member enters from the outside of the gripping portion 2 into the inside of the gripping portion 2 and is connected to the cooling device 3 in a heat-conductive manner. The long arm portion of the L-shaped member is in close contact with the outer surface of the gripping portion 2 and is provided to extend along the longitudinal direction of the gripping portion 2. A heat-insulating gasket 6 is provided between the short arm portion of the L-shaped member and the housing of the gripping portion 2. The heat-insulating gasket 6 prevents the cooling effect on the conductive member 5 from being conducted to the housing of the gripping portion 2 to form energy loss.

[0023] An air inlet 12 and an air outlet 13 are provided in the above-mentioned fan housing 11. Both the air inlet 12 and the air outlet 13 are provided in communication with a duct. An internal frame 16 is provided in the duct. A motor base 161 is provided on the air inlet 12 side of the internal frame 16. A blower blade group 15 is attached to the motor base 161. The blower blade group 15 guides the air at the air inlet 12 so as to blow out to the outside from the air outlet 13 after flowing through the duct. The internal frame 16 is provided inside the air outlet 13. An equipment accommodation cavity 162 is provided on the side of the internal frame 16 opposite to the motor base 161. A display 17 is attached in the equipment accommodation cavity 162. A light-transmitting cover 18 seals the opening of the equipment accommodation cavity 162. The display content of the display 17 is displayed outside through the light-transmitting cover 18. The display 17 displays the operation mode and operation state of the blower blade group 15 and / or the cooling device 3, or the remaining amount of the battery level of the battery 8. The gripping portion 2 includes a gripping front housing 21 and a gripping rear housing 22 that are connectably engaged with each other. An accommodation cavity is formed between the gripping front housing 21 and the gripping rear housing 22. A circuit board assembly 7 and a battery 8 are attached in the accommodation cavity. The battery 8 is electrically connected to the circuit board assembly 7. A control button 71 and a USB interface 72 are electrically connected and provided on the circuit board assembly 7. Both the control button 71 and the USB interface 72 are provided in a pre-provided through hole in the housing of the gripping portion and extend out from the through hole to the outside. The control button 71 adjusts the operation state and operation mode of the cooling device 3 and the blower blade group 15. The USB interface 72 can charge the battery 8 when connected to an external power supply using a charging cable.

[0024] As described above, in the present invention, a conductive plate 5 is provided on the outer surface of the gripping portion 2, and the conductive plate 5 achieves a cooling effect by the action of the cooling device 3. During the process of being gripped and used by the consumer, there is no feeling of heat, and the cooling effect of the fan can be improved by cooling the palm. Also, the heat generated during the energy exchange process of the thermoelectric semiconductor 31 is timely released by the high-speed air flow in the duct, without forming a heat accumulation, so as to reduce the manufacturing cost of the heat dissipation mechanism on the premise of not affecting the fan effect, and effectively reduce the manufacturing cost of the cooling fan.

[0025] In addition, in this specification, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. The terms "comprising", "including" or any other variation thereof are intended to cover a non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed or elements inherent to such process, method, article or device.

[0026] As described above, the embodiments of the present invention have been shown and described. For those skilled in the art, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. It can be understood that the scope of the present invention is limited by the appended utility model registration claims and their equivalents.

Explanation of Reference Numerals

[0027] 1 Fan head 11 Fan housing 12 Intake port 13 Exhaust port 14 Connection through hole 15 Blower blade group 16 Inner frame 161 Motor base 162 Equipment accommodation cavity 17 Display 18 Translucent cover 2 Gripping part 21 Gripping front housing 22 Gripping rear housing 3 Cooling device 31 Thermoelectric semiconductor 32 Radiator 4 Connecting member 5 Conductive member 6 Heat insulating gasket 7 Circuit board assembly 71 Control button 72 USB interface 8 Battery

Claims

1. A portable cooling fan including a fan head (1) and a grip portion (2) integrally connected to the fan head (1), wherein the fan head (1) includes a fan housing (11), a duct is formed inside the fan housing (11), a connection through-hole (14) is provided in the fan housing (11) penetrating the inside and outside of the duct, a conductive member (5) is provided on the outer surface of the grip portion (2), a cooling device (3) is provided inside the grip portion (2), the cooling device (3) includes a cooling end and a heat dissipation end, the cooling end of the cooling device (3) is thermally conductively connected to the conductive member (5), and the heat dissipation end of the cooling device (3) is provided penetrating the connection through-hole (14) and communicating with the duct. A portable cooling fan characterized by the above.

2. The heat dissipation end of the cooling device (3) is provided protruding from the inner wall surface of the duct. The portable cooling fan according to Claim 1, characterized by the above.

3. The cooling device (3) includes a radiator (32) and a thermoelectric cooler (31), the cooling end of the thermoelectric cooler (31) is thermally conductively connected to the conductive member (5), the heat generating end of the thermoelectric cooler (31) is thermally conductively connected to the radiator (32), and the radiator (32) is provided penetrating the connection through-hole (14). The portable cooling fan according to Claim 1, characterized by the above.

4. The cooling device (3) is provided at the end of the grip portion (2) connected to the fan head (1), the heat dissipation end of the cooling device (3) is provided protruding from the end surface of the grip portion (2), and the grip portion (2) is integrally connected to the fan head (1) by a connecting member (4). The portable cooling fan according to Claim 1, characterized by the above.

5. The connecting member (4) is an annular ferrule, the annular ferrule is fitted in the circumferential direction of the heat dissipation end of the cooling device (3), the lower end of the annular ferrule is fixedly connected to the grip portion (2), and the upper end of the annular ferrule is fixedly connected to the fan head (1). The portable cooling fan according to Claim 4, characterized by the above.

6. The conductive member (5) is an L-shaped member. The short arm portion of the L-shaped member enters from the outside of the gripping portion (2) into the inside of the gripping portion (2) and is connected to the cooling device (3) in a thermally conductive manner. The long arm portion of the L-shaped member is in close contact with the outer surface of the gripping portion (2) and is provided so as to extend along the longitudinal direction of the gripping portion (2). The portable cooling fan according to claim 1, characterized in that.

7. A heat insulating gasket (6) is provided between the short arm portion of the L-shaped member and the housing of the gripping portion (2). The portable cooling fan according to claim 6, characterized in that.

8. The gripping portion (2) includes a gripping front housing (21) and a gripping rear housing (22) that are connected to be engageable with each other. A housing cavity is formed between the gripping front housing (21) and the gripping rear housing (22). A circuit board assembly (7) and a storage battery (8) are mounted in the housing cavity. The storage battery (8) is electrically connected to the circuit board assembly (7). A control button (71) and a USB interface (72) are electrically connected and provided to the circuit board assembly (7). Both the control button (71) and the USB interface (72) are provided in a through hole provided in advance in the housing of the gripping portion and extend to the outside from the through hole. The portable cooling fan according to any one of claims 1, 4, 5, 6, and 7, characterized in that.

9. An air inlet (12) and an air outlet (13) are provided in the fan housing (11). Both the air inlet (12) and the air outlet (13) are provided in communication with a duct. An internal frame (16) is provided in the duct. A motor base (161) is provided on the air inlet (12) side of the internal frame (16). A blower blade group (15) is attached to the motor base (161). The blower blade group (15) guides the air at the air inlet (12) so as to blow out to the outside from the air outlet (13) after flowing through the duct. The portable cooling fan according to claim 1, characterized in that.

10. The inner frame (16) is provided inside the exhaust port (13), and an equipment accommodation cavity (162) is provided on the side of the inner frame (16) opposite to the motor base (161). A display (17) is attached in the equipment accommodation cavity (162), and a light-transmitting cover (18) is sealed to the opening of the equipment accommodation cavity (162). The display content of the display (17) is displayed outside through the light-transmitting cover (18). The portable cooling fan according to claim 9, characterized in that.

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