Handheld cooling device

Abstract

The utility model relates to a cooling device, in particular to a handheld cooling device. Comprising a refrigeration unit and a spraying unit. The refrigeration unit comprises a water tank, a refrigeration part and a cold conduction part; an opening is formed in the side wall of the water tank, and one end of the cold conduction piece is embedded in the opening of the side wall of the water tank and serves as a part of the side wall of the water tank; and the other end of the cold conduction piece is tightly attached to the cold end of the refrigeration piece. The spraying unit comprises a cotton sliver and a vibration disc, one end of the cotton sliver extends into the water tank, the other end of the cotton sliver is fixed to the vibration disc, and the vibration disc changes water sucked out of the water tank by the cotton sliver into water mist to be scattered out. The cold conduction piece makes contact with water in the water tank so that heat of the water can be transmitted to the semiconductor hot end, the spraying unit changes the cold water in the water tank into water mist and dissipates the water mist into air, and the effect of reducing the ambient temperature is achieved. Preferably, a fan is further arranged, the fan blows cold water mist emitted by the spraying unit to the human body, and the temperature of the human body is lowered.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cooling device, in particular to a handheld cooling device. BACKGROUND

[0002] When people go out in summer, they will feel uncomfortable because of the high temperature. The discomfort can be reduced by a portable handheld cooling device.

[0003] For the handheld cooling device, the mainstream method is to blow air to the human body by a fan to reduce the surface temperature of the human body. In order to further improve the cooling effect, the existing handheld cooling device is also provided with a refrigeration mechanism to cool the air blown by the fan. One existing handheld cooling device includes a fan, a refrigeration semiconductor, a water tank and a water suction element. The cold end of the refrigeration semiconductor is attached to the outer surface of the water tank to cool the water in the water tank. The water suction element extends into the water tank to suck out the cooled water. The fan blows the cooled water sucked out by the water suction element to the human body to cool the human body. Since the semiconductor of the cooling device is attached to the outer surface of the water tank to cool the water in the water tank, and the material of the water tank does not have good thermal conductivity, the cooling effect of the cooling device is poor. If the material of the water tank is directly changed to a material with good thermal conductivity, the water in the water tank will be heated quickly by the surrounding temperature after being cooled, which will have the opposite effect. SUMMARY

[0004] Therefore, the utility model aims to provide a handheld cooling device which can improve the cooling efficiency of the semiconductor on the water in the water tank.

[0005] A handheld cooling device includes a refrigeration unit and a spray unit. The refrigeration unit includes a water tank, a refrigeration element and a cold guide. The side wall of the water tank is provided with an opening. One end of the cold guide is embedded in the opening of the side wall of the water tank. The other end of the cold guide is in close contact with the cold end of the refrigeration element. The spray unit includes a cotton strip and a vibrating disc. One end of the cotton strip extends into the water tank, and the other end of the cotton strip is fixed to the vibrating disc. The vibrating disc changes the cooled water sucked out of the water tank by the cotton strip into water mist and disperses it. The cold guide is in contact with the water in the water tank to transfer the heat of the water to the hot end of the semiconductor. The spray unit changes the cooled water in the water tank into water mist and disperses it into the air, which reduces the surrounding temperature.

[0006] Further, one end of the cold guide away from the refrigeration element extends into the water tank, which increases the contact area of the cold guide with the water in the water tank to improve the cooling efficiency.

[0007] Further, the end of the cold guide extending into the water tank is in the shape of a fin, which further increases the contact area of the cold guide with the water in the water tank.

[0008] Further, the number of the cold conducting pieces is two or more, and the water tank is provided with two or more openings, and the at least two cold conducting pieces respectively extend into the water tank from different openings to cool the water at different positions in the water tank from different angles.

[0009] Further, the distance between the cotton strip and the cold conducting piece is less than or equal to 1 cm, so that the water absorbed by the cotton strip from the water tank has been cooled by the refrigeration unit.

[0010] Further, the refrigeration unit further comprises a heat sink which is tightly attached to the hot end of the cold conducting piece, and the heat sink is used to conduct the heat of the hot end of the semiconductor to the outside to reduce the temperature of the cold conducting piece and improve the refrigeration efficiency of the cold conducting piece.

[0011] Further, the device further comprises a shell and a fan, the shell comprises two top covers and a partition plate which are oppositely arranged, one of the top covers is provided with a water mist outlet and an air outlet, the partition plate is arranged between the two top covers to divide the shell into a front end and a rear end, the spray unit and the refrigeration unit are installed at the front end of the shell, and the oscillating disc of the spray unit is arranged on the water mist outlet of the top cover of the shell.

[0012] Further, the partition plate is provided with a wind guide opening, so that the wind blown by the fan to the air outlet is divided into a part which is blown to the heat sink through the wind guide opening, and the heat on the heat sink is blown away by the wind blown by the fan, so that the temperature of the heat sink is reduced and the refrigeration efficiency of the cold conducting piece is improved.

[0013] Further, the shell further comprises two side covers which form a full-enclosing structure with the top covers, and one of the side covers is provided with an air inlet for the fan to suck air and a heat dissipation hole for the heat sink to dissipate heat.

[0014] In order to better understand and implement, the following will be described in detail in combination with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic view of the overall structure of the handheld cooling device.

[0016] Figure 2 It is a schematic view of the internal structure of the handheld cooling device.

[0017] Figure 3 It is a schematic view of the structure of the refrigeration unit.

[0018] Figure 4 It is a schematic view of the structure of the water tank.

[0019] Reference numerals: Housing - 10; Side cover - 12; Air inlet - 121; Heat dissipation hole - 122; Top cover - 14; Air outlet - 141; Water mist outlet - 142; Divider plate - 16; Air guide - 161; Inner plate - 18; Wind baffle - 181; Refrigeration unit - 20; Water tank - 21; Opening - 211; Infusion port - 212; Sealing cover - 213; Refrigeration component - 22; Cooling component - 23; Heat sink - 24; Silicone ring - 25; Spray unit - 30; Cotton strip - 32; Oscillating plate - 34; Fan - 40. Detailed Implementation

[0020] To address the problem of poor cooling effect of existing handheld cooling devices, this invention proposes a novel handheld cooling device that improves its cooling effect by changing the structure of the handheld cooling device.

[0021] The present invention will now be described in detail with reference to the accompanying drawings.

[0022] Example

[0023] A handheld cooling device according to an embodiment of the present invention includes a housing 10, a cooling unit 20, a spray unit 30, and a fan 40. The cooling unit 20, the spray unit 30, and the fan 40 are installed inside the housing 10. The spray unit 30 converts water cooled by the cooling unit 20 into fine water mist, and the fan 40 blows the water mist formed by the spray unit 30 toward the human body to achieve a cooling effect.

[0024] The housing 10 includes two side covers 12, two top covers 14, and a partition plate 16. The two side covers 12 are fixedly connected to form a cylindrical semi-enclosed structure with two openings. The two top covers 14 cover the openings of the semi-enclosed structure to form a fully enclosed outer shell. The partition plate 16 is connected to the two top covers 14, dividing the interior of the housing 10 into a front end and a rear end. The fan 40 is installed at the rear end of the housing. The cooling unit 20 is installed at the front end of the housing. One side cover 12 has an air inlet 121 and a heat dissipation hole 122, with the air inlet 121 facing the fan 40 and the heat dissipation hole 122 facing the cooling unit 20. One top cover 14 also has an air outlet 141 and a water mist outlet 142.

[0025] Preferably, the housing 10 further includes an inner plate 18, on which a partition plate 16 is erected, dividing the interior of the housing 10 into a front and a rear end. The fan 40 is mounted on the inner plate 18 at the rear end of the housing 10, and the cooling unit 20 is mounted on the inner plate 18 at the front end of the housing 10. A baffle plate 181 is also erected at the end of the inner plate 18 at the rear end of the housing 10 to control the direction of the airflow from the fan 40.

[0026] The refrigeration unit 20 comprises a water tank 21, a refrigeration element 22, a heat conduction element 23, a heat dissipation fin 24 and a silica gel ring 25. The water tank 21 is provided with an opening 211 on one side wall for placing the heat conduction element 23, and a liquid inlet 212 on the other side wall for adding water into the water tank 21. The liquid inlet 212 is further provided with a sealing cover 213 for sealing the liquid inlet 212 to prevent water from leaking out of the water tank 21. One end of the heat conduction element 23 is embedded in the opening 211 of the side wall of the water tank 21 as a part of the side wall of the water tank 21, and the other end is in close contact with the cold end of the TEC heat conduction element 23. One end of the heat dissipation fin 24 is flat and the other end has heat dissipation fins. The end with the heat dissipation fins faces the heat dissipation hole 122 of the side cover 12 of the shell, and the flat end is in close contact with the hot end of the TEC heat conduction element 22. A silica gel ring 25 is further provided between the opening 211 of the side wall of the water tank 21 and the heat conduction element 23 to prevent water from leaking out of the gap between the heat conduction element 23 and the water tank 21. The refrigeration element 22 transfers heat from its cold end to its hot end. Since the heat conduction element 23 and the heat dissipation fin 24 are in close contact with the cold end and the hot end of the refrigeration element 22 respectively and have high heat conduction efficiency, and one end of the heat conduction element 23 is embedded in the opening 211 of the side wall of the water tank 21 and is in large-area contact with the water in the water tank 21, the heat of the water in the water tank 21 is conducted to the heat dissipation fin 24, achieving the effect of cooling the water in the water tank 21.

[0027] Preferably, one end of the heat conduction element 23 is flat and the other end has fins. The end with the fins is embedded in the opening of the side wall of the water tank 21 and extends into the water tank 21 to be in large-area contact with the water in the water tank 21, and the flat end is in close contact with the cold end of the TEC heat conduction element 22. By providing fins on the end of the heat conduction element 23 that extends into the water tank, the contact area between the heat conduction element 23 and the water in the water tank 21 is increased, and the heat transfer efficiency between the heat conduction element 23 and the water in the water tank 21 is improved, thereby improving the refrigeration effect.

[0028] Preferably, the number of heat conduction elements 23 is two or more, and the side wall of the water tank 21 is provided with two or more openings 211, and each opening is provided on a different side of the water tank 21. The flat end of each heat conduction element 23 is in close contact with the cold end of the refrigeration element 22, but the end with fins of each heat conduction element 23 is embedded in the water tank 21 from different openings 211. Each heat conduction element contacts the water in the water tank 21 from a different angle and at a different position, so that the water in the water tank 21 is cooled sufficiently.

[0029] The spraying unit 30 comprises a cotton strip 32 and a vibrating disc 34. One end of the cotton strip 32 extends into the water tank 21 of the refrigeration unit and is adjacent to the heat conducting member 23, preferably with a distance of less than or equal to 1 cm between the cotton strip and the heat conducting member, so as to ensure that the water absorbed by the cotton strip 32 from the water tank 21 has been cooled by the refrigeration unit 20. The other end of the cotton strip 32 is fixed to the vibrating disc 34. The vibrating disc 34 is arranged on the water mist outlet 142 of the top cover 14 of the shell and converts the water absorbed by the cotton strip 32 from the water tank 21 into fine water mist which is discharged from the water mist outlet 142.

[0030] The fan 40 sucks air from the air inlet 121 of the side cover 12 of the shell and blows the air towards the air outlet 141 of the top cover 14 of the shell, while the cold water mist formed by the water mist outlet 142 is blown outwards towards the human body, so as to achieve the purpose of cooling the human body.

[0031] Preferably, the partition plate 16 is further provided with an air guide outlet 161, and the air blown by the fan 40 forms two air channels through the partition plate 16. One of the air channels is blown towards the air outlet 141, and the other air channel is blown towards the heat sink 24 through the air guide outlet 161 and is discharged from the heat dissipation hole 122 of the side cover 12, so as to cool the heat sink 24 and thus reduce the temperature of the hot end of the heat conducting member 22 and improve the refrigeration efficiency of the heat conducting member 22.

[0032] In actual use, the water tank 21 is first filled with water through the liquid inlet 212 on the water tank 21, and then the sealing cover 213 is covered. After the power is turned on, the heat conducting member 22 conducts the heat of the heat conducting member 23 to the heat sink 24, so as to cool the water in the water tank 21. The cotton strip 32 of the spraying unit 30 absorbs the cooled water in the water tank 21 and conducts the water to the vibrating disc 34, which converts the cold water absorbed by the cotton strip 32 into fine cold water mist which is discharged from the water mist outlet 142. The fan 40 sucks air from the air inlet 121 and blows the air towards the air outlet 141 and the heat sink 24. The air blown towards the air outlet 141 blows the cold water mist towards the human body through the water mist outlet 142, and the air blown towards the heat sink 24 cools the heat sink 24 and is discharged from the heat dissipation hole 122, so as to reduce the temperature of the heat conducting member 22 and improve the refrigeration efficiency.

[0033] The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the present application. As used in the description of the embodiments of the present application and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It also will be understood that the term "multiple" refers to two or more, unless otherwise indicated. The terms "first", "second", "third", etc. are used only to distinguish one element from another and are not used to describe a particular sequential or chronological order, unless otherwise indicated. The term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items. The above description is presented in connection with the accompanying drawings, which show details of specific embodiments. The number of elements in the drawings is not meant to limit the scope of the embodiments of the present application. The above description is presented to enable any person skilled in the art to practice the embodiments of the present application as claimed.

[0034] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as limiting the scope of the present application. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of protection of the present application.

Claims

1. A hand-held cooling device, characterized by: The refrigeration unit comprises a water tank, a refrigeration element and a cooling guide, the water tank has a side wall with an opening, one end of the cooling guide is embedded in the opening of the water tank side wall, and the other end of the cooling guide is close to the cold end of the refrigeration element. The spray unit comprises a cotton strip and a vibrating disc, one end of the cotton strip extends into the water tank, and the other end is fixed to the vibrating disc, and the vibrating disc changes the water sucked out of the water tank into water mist. The end of the cooling guide away from the refrigeration element extends into the water tank.

2. The handheld cooling device of claim 1, wherein: The end of the cooling guide extending into the water tank is fin-shaped.

3. The handheld cooling device of claim 2, wherein: The number of cooling guides is two or more, and the water tank is provided with two or more openings, and at least two cooling guides extend into the water tank from different openings.

4. The handheld cooling device of claim 2, wherein: The distance between the cotton strip and the cooling guide is less than or equal to 1cm.

5. The handheld cooling device of claim 2, wherein: The refrigeration unit further comprises a heat sink close to the hot end of the refrigeration element.

6. The handheld cooling device of claim 2, wherein: The refrigeration unit further comprises a silica gel ring arranged between the water tank and the cooling guide.

7. The handheld cooling device of claim 2, wherein: Further comprising a shell and a fan, the shell comprises two oppositely arranged top covers and a partition plate, one of the top covers is provided with a water mist outlet and an air outlet; the partition plate is arranged between the two top covers, dividing the shell into front and rear ends; the spray unit and the refrigeration unit are installed in the front end of the shell; the vibrating disc of the spray unit is arranged on the water mist outlet of the top cover; the fan is installed in the rear end of the shell and blows air to the air outlet and then blows the water mist formed by the water mist outlet.

8. The handheld cooling device of any one of claims 1-7, wherein: The partition plate is provided with a wind guide opening, so that the fan blows a stream of air through the wind guide opening to a heat sink close to the hot end of the refrigeration element.

9. The handheld cooling device of claim 8, wherein: The shell further comprises two side covers forming a full-enclosed structure with the top covers, one of the side covers is provided with an air inlet for the fan to suck air and a heat dissipation hole for the heat sink to dissipate heat.

10. The handheld cooling device of claim 9, wherein: ​

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