WO2020138584A1

WO2020138584A1 - Portable air cooler

Info

Publication number: WO2020138584A1
Application number: PCT/KR2019/001026
Authority: WO
Inventors: 윤국영
Original assignee: 윤국영
Priority date: 2018-12-27
Filing date: 2019-01-24
Publication date: 2020-07-02
Also published as: KR20200080507A; KR102156987B1

Abstract

According to one embodiment of the present invention, a thermoelectric module is used so as to generate cool air, and the cool air is blown at a user through an efficient cool air transfer structure, and thus energy efficiency is increased and a cool and refreshing feeling can be provided to the user for a long time. To this end, provided in the one embodiment of the present invention is a portable air cooler comprising: a thermoelectric element module having, on the basis of electronic cooling, a heat absorption surface formed on one surface thereof and a heating surface formed on the other surface thereof; a thermoelectric element accommodation unit for accommodating the thermoelectric element module therein; a first fan for blowing cool air generated by heat absorption of the heat absorption surface; a ventilation head having a vent for discharging the blown cool air; and a cool air transmission unit for connecting the thermoelectric element accommodation unit with the ventilation head, and for performing heat exchange for the transmission of cool air from the heat absorption surface to the ventilation head or for the generation of cool air.

Description

Portable chiller

The present invention relates to a portable cold air fan, and more particularly, to a portable cold air fan equipped with a thermoelectric element.

It is an item that can be easily found in people who are engaged in outdoor activities in the summer as heat waves have recently risen around the world. Such a hand fan has a tendency to increase in demand due to its strong blowing ability and light weight despite its small size.

In general, a fan is a principle that generates wind through the formation of a wind pressure difference through a fan, and the user can feel cool by dropping body heat through the wind. However, since the wind itself does not include cold air, there is a limit to its coolness. In particular, blowing hot air in hot weather is not so refreshing.

To compensate for the shortcomings of these fans, cold fans have appeared, but using ice packs or using the heat of evaporation of water is a hassle. Therefore, a cold air fan using a thermoelectric element has appeared to overcome this heaviness. Among them, Korean Patent Publication No. 10-2018-0086941 discloses a cold air fan using a thermoelectric element. However, if you look at the prior patent in detail, although the thermoelectric element is used, the thermoelectric element is disposed between the cold storage material and the metal plate to supply power by a temperature difference. You can see that you want to deliver air to the user. Although it is said that the fan simply operates without a battery and can simultaneously deliver low temperature air, it will not be easy to implement.

It can be seen that a lot of energy is required and a large-capacity battery is required for simple thermodynamic calculations to transmit cool air to a user in a hot environment in summer to feel cool to the user. Therefore, there is still a need for research on an efficient cold air fan that can increase the cooling performance in a real hot environment while reducing the weight for carrying.

The present invention has been derived by the necessity as described above, and a first object of the present invention is to provide a portable cold air blower capable of generating cold air using a thermoelectric element and blowing cold air to a user through an efficient cold air delivery structure. have.

The second object of the present invention is to increase the energy efficiency by compressing the cold air generated through the thermoelectric element into the cold air compression space, discharging the cold air through a narrow tuyere, and mixing and blowing the cold air into the air drawn from the rear due to changes in air pressure. In providing a portable cold air fan.

A third object of the present invention is to provide a portable cold air fan that can increase energy efficiency by forming an efficient cold air transmission structure by connecting a heat pipe to the heat absorbing surface of the thermoelectric element and extending it to the blowing head.

A fourth object of the present invention is to provide a portable cold air fan capable of further accelerating the heat absorption of the heat absorbing surface by quickly attaching a heat pipe or heat sink to the heat generating surface of the thermoelectric element to quickly treat the heat formed on the heat generating surface in the thermoelectric element. .

An object of the present invention as described above, based on the electronic cooling, the thermoelectric element module is formed on one side of the heat absorbing surface is formed and the heating surface is formed on the other surface; A thermoelectric element accommodating portion accommodating the thermoelectric element module therein; A first fan for blowing cold air generated by heat absorption on the heat absorbing surface; A blowing head having an air outlet for discharging the blown cold air; And connecting the thermoelectric element accommodating portion and the blower head, and providing a cold air blower including a cold air transfer unit in which heat exchange for transfer of cold air or generation of cold air is performed from the heat absorbing surface to the blower head.

Here, the thermoelectric element accommodating portion may be formed with a plurality of through holes.

And it may further include an endothermic heat sink attached to the heat absorbing surface and an exothermic heat sink attached to the heat generating surface.

The cold air delivery unit may be an insulating duct forming a cold air moving path through which cold air moves due to a difference in wind pressure between the endothermic heat sink and the blowing head.

In addition, the first fan is disposed on the insulation duct, and the blowing head includes an outer cylinder that surrounds the outer circumferential surface of the hollow inner cylinder and the inner cylinder and is connected to one end of the insulation duct, wherein the inner cylinder and the outer cylinder are The cold air compressed space through which the cold air moved through the cold air moving path is compressed may be formed, and a discharge port through which compressed cold air is discharged between the outer cylinder and one of the both ends of the inner cylinder may be formed.

Meanwhile, the portable cooler may further include a second fan that is disposed under the heating heat sink and emits heat.

In addition, the portable cold air cooler may further include a first heat pipe attached to the heat absorbing surface and extending to the blowing head passing through the inside of the cold air transmitting unit, and a first heat dissipation fin mounted on the other end of the first heat pipe. have. In this case, the blowing head includes a hollow rim that is coupled to the end portion of the cold air transmission unit and surrounds the other end of the first heat pipe, the first heat sink fin, and the first fan, and the tuyere is formed in both directions along the hollow axis of the hollow rim. Can.

It may further include a heating fan attached to the heating surface and a second fan disposed under the heating heat sink to discharge heat.

In addition, the portable cold air fan may further include a second heat pipe having one end attached to the heating surface and a second heat dissipation fin mounted on the other end of the second heat pipe.

In addition, the portable cooler may further include a second fan that is disposed under the second heat dissipation fin and discharges heat.

On the other hand, the portable cold air fan is formed integrally with the thermoelectric element accommodating portion and the cold air transmitting portion, and may be configured to further include a battery that is accommodated in isolation from the first heat pipe inside the cold air transmitting portion.

According to one embodiment of the present invention as described above, it is possible to increase energy efficiency and provide coolness and comfort to the user for a long time by generating cold air using a thermoelectric element module and blowing cold air to the user through an efficient cold air delivery structure.

In addition, by compressing the cold air generated through the thermoelectric module module into the cold air compression space and discharging the cold air through a narrow tuyere, the air pressure is changed to mix the cold air with the air drawn from the rear to blow the air to maximize energy efficiency without an externally exposed fan. Can.

In addition, it is possible to maximize energy efficiency by connecting a heat pipe to the heat absorbing surface of the thermoelectric element module and extending to the blowing head to form an efficient cold air transmission structure.

Moreover, by attaching a heat pipe or a heat sink to the heating surface of the thermoelectric module, the heat generated on the heating surface in the thermoelectric module can be quickly processed to further accelerate heat absorption on the heat absorbing surface.

1 is a perspective view as viewed obliquely to a first embodiment according to the present inventors portable cold air fan,

2 is an exploded perspective view showing a state in which the cover forming the thermoelectric element accommodating part and the cold air transmitting part are separated among the first embodiment configurations according to the present invention, the portable cold air fan,

3 is an exploded perspective view showing a state in which the thermoelectric element module, the first and second heat sinks, and the first and second fans are separated among the first embodiment configurations according to the present invention, the portable cold air fan;

Figure 4 is an exploded perspective view showing a state in which the blowing head of the first embodiment of the configuration according to the present invention portable cold air blower,

5 is an exploded perspective view of a state in which the cover for forming the thermoelectric element accommodating part and the cold air transmitting part in the second embodiment according to the portable cold air blower according to the present invention is viewed obliquely;

Figure 6 is a perspective view as viewed obliquely to the third embodiment according to the inventors portable cold air,

7 is an exploded perspective view showing a state in which the cover forming the blowing head, the thermoelectric element accommodating part, and the cold air transmitting part is removed among the third embodiment according to the present invention, the portable cold air fan,

8 is an exploded perspective view of the third embodiment of the portable cold air blower shown in FIG. 7 as viewed obliquely from the opposite side;

9 is a perspective view showing the first and second heat pipes, the first and second heat dissipation fins, and the thermoelectric module among the third embodiment according to the present invention, the portable cold air fan,

10 is an exploded perspective view showing a state in which the upper and lower heat-blocking portions of the thermoelectric module shown in FIG. 9 are separated;

FIG. 11 is a modified perspective view of a third embodiment according to the present invention of a portable cold air blower, and is an exploded perspective view showing a state in which a blowing head, a thermoelectric element accommodating part, and a cover forming a cold air transmitting part are separated.

In describing the present invention, when it is determined that a detailed description of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. In addition, terms used in the present specification (terminology) are terms used to properly represent a preferred embodiment of the present invention, which may vary according to a user, an operator's intention, or a custom in a field to which the present invention pertains. Accordingly, definitions of these terms should be made based on the contents throughout the specification.

<휴대용 냉풍기><Portable cold air fan>

The portable cold air fan according to the present invention includes

thermoelectric element modules

110, 210, 310, and 410, and thermoelectric

element accommodating portions

120, 220, 320, and 420 accommodating the

thermoelectric module modules

110, 210, 310, and 410 therein. And, it comprises a blowing head (140, 240, 340), and the cold air transmission unit (150, 250, 350, 450). The portable cold air blower according to the present invention efficiently transfers the cold air generated by the thermoelectric module modules (110, 210, 310, 410) to the blowing heads (140, 240, 340) through the cold air transfer units (150, 250, 350, 450). And the blowing head (140, 240, 340) by sending the transmitted cold air to increase the energy efficiency and at the same time acts to provide a cool wind to the user.

Hereinafter, embodiments of the portable cold air fan according to the present invention will be described with reference to the drawings.

제1 실시예Embodiment 1

* Figure 1 is a perspective view of the first embodiment according to the present invention portable cold air fan obliquely, Figure 2 is a separate embodiment of the first embodiment according to the portable cold air fan according to the thermoelectric element receiving portion and the cover forming the cold air transmission part Figure 3 is an exploded perspective view showing one state, Figure 3 is an exploded perspective view showing a state in which the thermoelectric element module, the first and second heat sinks and the first and second fans are separated among the first embodiment configurations according to the present invention, the portable cooler, 4 is an exploded perspective view showing a state in which the blowing head is removed among the first embodiment configurations according to the present invention, a portable cold air fan.

In the first embodiment, as shown in FIGS. 1 and 2, the thermoelectric module 110 is accommodated in the thermoelectric element accommodating part 120 and a cold air transfer part 150 is formed between the blowing head 140 and , The heat absorbing heat sink 160 and the first fan 130 are disposed on the upper surface of the thermoelectric element accommodating part 120 on which the heat absorbing surface is located, and the heat is generated on the lower surface of the thermoelectric element accommodating part 120 on which the heating surface is located. The heat sink 170 and the second fan 180 are disposed.

When electric power is supplied from a battery (not shown) accommodated in the battery accommodating unit 190 and cold air is generated on the heat absorbing surface of the thermoelectric module 110, the cold air generated by the wind pressure of the first fan 130 is transferred to the cold air. Along the 150 is transferred to the cold air compression space 146 of the blowing head 140. At this time, the air flowing by the first fan 130 is sucked through the plurality of through-holes 122 formed in the thermoelectric element accommodating part 120. In all embodiments, the plurality of through-holes 122 are outside air. It is formed to inhale or release air (heat) to the outside, and acts as a flow path of air is the same, so a description thereof will be omitted.

After that, the compressed cold air is discharged at a high speed through the tuyere 144 formed in a narrow annular band shape, and the surroundings of the blowing head 140 drop at a low pressure to induce more air flow, thereby inducing a large amount of wind including cold air. I can make it.

Conversely, the heat generated on the heating surface of the thermoelectric module 110 is discharged to the outside of the body cover by the wind pressure of the second fan 180. Here, the body cover refers to a synthetic resin case forming the cold air transmission unit 150, the thermoelectric element accommodating unit 120, and the battery accommodating unit 190 from the top, and the definition of the body cover is differently defined for each embodiment Can be. However, it is the same that the body cover can be part of the user's grip.

Meanwhile, in the first embodiment, a vertically separated body cover is combined to form a cold air transfer unit 150, a thermoelectric element receiving unit 120, and a battery receiving unit 190. In addition to the battery, the battery accommodating unit 190 may include a control panel (not shown).

Looking closely at the components related to the formation of cold and hot air, as shown in FIG. 3, a thermoelement having a heat absorbing surface 112 and a heat generating surface 114 and a heat shield 116 coupled to the thermoelectric device are shown. Including the thermoelectric module 110 is configured. Here, the thermoelectric element is also referred to as a Peltier element. When a current flows through an object, a temperature difference occurs, so that one side (heating surface) is heated and the other side (endothermic surface) is cooled. to be. And the heat shield 116 serves to block and maintain the upper and lower cold and heat, and at the same time to fix the thermoelectric element.

An endothermic heat sink (160) and a first fan (130) are attached to the heat absorbing surface (112), so as to transfer cold air to the top, and a heat generating heat sink (170) and a second fan (180) below the heating surface (114). ) Is attached so that it can release enough heat to the bottom or side.

The blowing head 140 may be composed of an inner cylinder 142a and an outer cylinder 142b, as shown in FIG. 4. Cold air compression spaces 146 may be formed between the inner cylinders 142a and the outer cylinders 142b combined by different mutual diameters, and a difference in diameter may be observed in the corner portions of the inner cylinders 142a and the outer cylinders 142b. It can be reduced to form a narrow annular tuyere (144).

제2 실시예Example 2

5 shows a perspective view of a second embodiment in a state where the body cover is removed. The body cover of the second embodiment can be separated into species and is mutually coupled to form a cold air transmission unit 250 connected to the blowing head 240 and a thermoelectric element accommodating unit 220. In particular, the cold air transmission unit 250 is located at the center of the battery housing 290 having a small diameter, so the outer periphery of the battery storage unit 290 serves as a cold air transmission path.

In the second embodiment, unlike the first embodiment, the first fan 230 is not directly attached to the top surface of the heat absorbing heat sink 260. The endothermic heat sink 260 is disposed at the lower end of the cold air transfer unit 250 and is spaced apart from the endothermic heat sink 260 and the first fan 230 is disposed at the upper end of the cold air transfer unit 250. In addition, the cold air transmission unit 230 accommodates a battery receiving unit 290 having a relatively small diameter in the center.

In addition, the second embodiment components, that is, the blowing head 240, the blowing port 244, the heat absorbing heat sink 260, the thermoelectric module 210, the heating heat sink 270, the second fan 280 are It is the same as the first embodiment, and is replaced with the first embodiment.

제3 실시예Third embodiment

Figure 6 is a perspective view of the third embodiment according to the present invention portable cooler obliquely, Figure 7 is a third embodiment of the present invention according to the portable cold air blower, the blowing head, the thermoelectric element accommodating part and the cover forming the cold air transfer part is separated An exploded perspective view showing a state, FIG. 8 is an exploded perspective view of the third embodiment of the portable cooler shown in FIG. 7 viewed obliquely from the opposite side, and FIG. 9 is the first and second heat pipes of the third embodiment according to the present invention. , First and second heat dissipation fins and a perspective view showing the thermoelectric module, and FIG. 10 is an exploded perspective view showing a state in which the upper and lower thermal barrier portions of the thermoelectric module shown in FIG. 9 are separated.

6, the thermoelectric element accommodating part 320 and the cold air transfer part 350 and the battery accommodating part 390 thereon, and the cold air transfer part 350 and the battery accommodating part 390 ) The blowing head 340 on which the blowing port 344 is formed is disposed.

In addition, the third embodiment, as shown in FIGS. 7 and 8, the front body cover and the rear body cover divided into species are combined to provide a blowing head 340, a cold air transmission part 350, a battery accommodating part 390, and The thermoelectric element accommodating part 320 is configured. Alternatively, the front and rear body covers may be formed instead of the front and rear body covers.

A thermoelectric module module 310 is provided inside the thermoelectric element accommodating part 320, and one end of the first heat pipe 360 is contacted and extended to the heat absorbing surface 312 of the thermoelectric module 310 to extend the cold air transfer part ( 350) and extends to the blowing head 340. The other end of the first heat pipe 360 is provided in a round shape on the side of the blowing head 340 and a plurality of first heat dissipation fins 362 are coupled to the round shape to rapidly dissipate cold air.

The heat pipe is a configuration in which energy exchange with the outside can be rapidly performed according to a phase change of gas liquid contained therein. Accordingly, the first heat pipe 360 formed from the heat absorbing surface of the thermoelectric module 310 to the blowing head 340 can quickly and efficiently perform heat exchange through repeated condensation and evaporation.

In the third embodiment, a first fan 330 with a motor may be formed at the center of the round shape of the first heat pipe 360. The first fan 330 disposed in the center of the blowing head 340 serves to blow cold air transferred by heat exchange of the first heat pipe 360 by rotating wind pressure. At this time, the wings of the first fan 330 is preferably formed to have a size corresponding to the diameter of the first heat dissipation fin 362 so as to sufficiently blow the cold air.

One end of the second heat pipe 370 is configured to contact the heating surface 314 of the thermoelectric module 310 and extend downward. The other end of the second heat pipe 370 is provided in a round shape, and a plurality of second heat dissipation fins 372 are combined to act to perform heat exchange quickly and efficiently. A second fan 380 with a motor may be provided at the center of the round shape of the second heat pipe 370, and the second fan 380 discharges heat energy diffused by the second heat dissipation fin 372 by wind pressure. . In order to release the heat of the second fan 380, the thermoelectric element accommodating part 320 may be provided with a plurality of through holes on the side.

9 and 10 separately show the configuration involved in the heat exchange action of the third embodiment. 9 and 10, in the third embodiment, the heat exchange action of the first heat pipe 360 and the heat exchange action of the second heat pipe 370 are performed independently of each other, and the first fan 330 Also, the flow of air contributing to the wind pressure of the second fan 380 is also performed at independent and spaced positions, thereby preventing interference with each other to reduce thermal efficiency.

In particular, the thermoelectric module 310 is configured such that the

heat blocking portions

316a and 316b cover the heat absorbing surface 312 and the heating surface 314, respectively, between the first and

second heat pipes

360 and 370, respectively. It was configured to concentrate on the heat pipe.

11 is a perspective view showing a modification of the third embodiment. In the modified example of the third embodiment, the shape of the first heat pipe 460 was changed by changing the positional relationship between the first heat pipe 460 and the battery 491, and the second heat pipe under the thermoelectric module 410 was changed. The other configurations are the same as those of the third embodiment, except that instead of 370 and the second heat dissipation fin 372, the heat generating heat sink 470 is replaced.

The above-described first to third embodiments and modifications of the portable cold air fan may be utilized in a fixed place by adding an adapter configuration to a power source including a battery and connecting an external power source. That is, in spite of the name of the present invention, one embodiment according to the present invention is not excluded from being used by connecting a power supply and being fixedly provided in an office or home without carrying a cold air fan.

The embodiments of the present invention have been described above with reference to the accompanying drawings, but the technical configuration of the present invention described above is another specific form without a person skilled in the art to which the present invention pertains does not change the technical spirit or essential features of the present invention. It will be understood that can be carried out. Therefore, the embodiments described above are to be understood in all respects as illustrative and not restrictive. In addition, the scope of the invention is indicated by the claims below, rather than the detailed description above. In addition, all modifications or variations derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention.

[Description of codes]

110, 210, 310, 410: thermoelectric module

112, 312: endothermic surface

114, 314: heating surface

116, 316a, 316b: train stop

120, 220, 320, 420: thermoelectric element accommodating part

122: multiple through holes

130, 230, 330: first fan

140, 240, 340: blowing head

142a: inner cylinder

142b: outer cylinder

144, 244, 344: blower

146: cold compressed space

150, 250, 350, 450: cold air transmission

160, 260: endothermic heat sink

170, 270, 470: Heated heat sink

180, 280, 380, 480: second fan

190, 290, 390: battery compartment

360, 460: first heat pipe

362, 462: first heat dissipation fin

370: second heat pipe

372: second heat dissipation fin

491: battery

Claims

A thermoelectric module having an endothermic surface formed on one surface and a heating surface formed on the other surface based on electronic cooling;

A thermoelectric element accommodating portion accommodating the thermoelectric module inside;

A first fan for blowing cold air generated by heat absorption on the heat absorbing surface;

A blowing head having an air outlet for discharging the blown cold air; And

A portable cold air blower comprising a cold air transfer unit connecting the thermoelectric element accommodating portion and the blowing head, and performing heat exchange for transferring the cold air or generating the cold air from the heat absorbing surface to the blowing head.
According to claim 1,

The thermoelectric element accommodating portion is a portable cold air fan having a plurality of through-holes.
According to claim 1,

A portable cold air fan further comprising an endothermic heat sink attached to the heat absorbing surface and an exothermic heat sink attached to the heat generating surface.
According to claim 3,

The cold air transmitting unit is a portable cold air fan, characterized in that it is an insulating duct forming a cold air moving path through which the cold air moves due to a difference in wind pressure between the endothermic heat sink and the blowing head.
According to claim 4,

The first fan is disposed on the insulating duct,

The blowing head includes a hollow inner cylinder and an outer cylinder that surrounds the outer circumferential surface of the inner cylinder and is connected to one end of the heat insulating duct, wherein the inner cylinder and the outer cylinder are interposed between the cold air passages. A portable cold air blower in which a cold air compression space in which the moved cold air is compressed is formed, and an outlet through which the compressed cold air is discharged is formed between one of both ends of the inner cylinder in the longitudinal direction.
According to claim 3,

A portable cold air fan further comprising a second fan disposed under the heating heat sink to release heat.
According to claim 1,

A portable cold air fan further comprising a first heat pipe having one end attached to the heat absorbing surface and extending to the blowing head passing through the inside of the cold air transmitting unit, and a first heat dissipation fin mounted on the other end of the first heat pipe.
The method of claim 7,

The blowing head, coupled to the end of the cold air transmission portion includes a hollow rim surrounding the other end of the first heat pipe and the first heat sink fin and the first fan, the blower along the hollow axis of the hollow rim A portable cold air fan formed in both directions.
The method of claim 7,

A portable cold air fan further comprising a heating heat sink attached to the heating surface and a second fan disposed below the heating heat sink to discharge heat.
The method of claim 7,

A portable cold air fan further comprising a second heat pipe having one end attached to the heating surface and a second heat dissipation fin mounted on the other end of the second heat pipe.
The method of claim 10,

A portable cooler further comprising a second fan disposed under the second heat dissipation fin to release heat.
The method of claim 7,

The thermoelectric element accommodating part and the cold air transmitting part are integrally formed, and the cold air transmitting part further includes a battery accommodated and isolated from the first heat pipe.