JP2020503100A - Electronic cooling device - Google Patents

Abstract

In the electronic cooling device, the cold source on the cooling surface of the cooling plate (6) is transmitted to the cold conduction medium (123) by the metal braid band (122), and the metal braid band (122) is braided by a plurality of metal wires. Flexible band. Since the metal braided band is woven or woven, it has a certain degree of flexibility, can be bent and deformed, can be closely fitted to foreheads of different shapes, its versatility, Degree and comfort were effectively improved. Furthermore, it contributes to improvement of heat transfer efficiency and energy saving. The cost of the metal braided band is lower compared to the cold conducting metal plate in the prior art.

Description

  The present invention relates to the technical field of household and medical aids, and more particularly to electronic cooling devices.

  Fever in children is a frequent disease, and it is proposed that physical hypothermia be employed clinically when body temperature is below 39 ° C. In particular, when the body temperature exceeds 39 ° C, the child's body has not yet fully grown, so the damage to the cerebrum is greatest, and eventually cerebral dysfunction occurs, causing symptoms such as loss of consciousness and generalized convulsions. It is easy and medically called febrile convulsions. Excessive convulsions without caregiving can result in brain cell damage, which can affect intelligence development. Conventional physical cooling methods such as cooling sheets, ice bags, wet towels, alcohol wipes and the like have various defects, and therefore, the market demands a safe, effective, lightweight, and portable cooling device.

  In the prior art, a cooling structure of a cooling device using a semiconductor cooling plate as a cooling member mainly includes the following members and the like.

a. A semiconductor cooling plate configured to generate a cold source and cool one surface and heat the other surface.
b. A heat dissipation sheet configured to increase the heat dissipation area.
c. Fans configured to enhance ventilation, produce continuous air convection, and circulate heat.
d. A cold conducting metal plate configured to transfer a cold source on the cooling surface of the cooling plate to the cold conducting medium.
e. Cold conduction medium.
Since the cold conductive metal plate connected to the semiconductor cooling plate cannot transmit the cold source uniformly, using a cold conductive medium such as a water bag or a water bag to reduce the amount of cold lost during transmission. It is necessary to uniformly transmit the non-uniform cold source in the cold conducting metal plate.

  In the above technical solution, the shape of the cooling device (especially the shape of the cold conduction module) is fixed and cannot be deformed, it can be in close contact with only one kind of forehead shape of human body, poor versatility, low adhesion, There is a defect of low comfort. If the adhesion is incomplete, the cooling area will be small, the cooling efficiency will be low, and if the local temperature is too low, the cooling loss will increase and the power consumption will increase, so that the cooling effect will be good. Not only can not be done, power consumption is large, and the production cost is high.

  Therefore, the improvement of the versatility, the degree of adhesion, and the comfort of the temperature lowering device is a technical problem that a person skilled in the art should immediately solve.

  In view of this, an object of the present invention is to use a metal braided band as a flexible cold conductive material instead of a metal cold conductive plate in the prior art, to be able to be closely fitted to foreheads of different shapes, and to reduce cost only. In addition, an object of the present invention is to provide an electronic cooling device having high versatility, adhesion and comfort.

  This disclosure claims the benefit of a priority to a Chinese patent filed on December 15, 2016 with the Patent Office of China and having the publication number 2016111162022.3 and the title "Electronic Cooling Device". , The entire contents of which are incorporated herein by reference.

  To achieve the above object, the present invention provides the following technical solutions.

  An electronic cooling device, wherein a metal braid band transmits a cold source on a cooling surface of a cooling plate to a cold conduction medium, and the metal braid band is a flexible band woven by a plurality of metal wires.

  Preferably, in the above-mentioned electronic cooling device, the metal wire is made of aluminum.

Preferably, in the above-mentioned electronic cooling device, a raising cloth is further provided,
The raised cloth is located on a side of the metal braid band near the cooling plate, and is fixedly connected to the metal braid band;
The cold conduction medium is located on the side of the metal braid band near the forehead of the human body, is coated with a thin film, is shaped, and is fixedly connected to the metal braid band.

  Preferably, in the above electronic cooling device, the cold conduction medium is a hydrogel material, and the thin film is a PU thin film or a TPU thin film.

  Preferably, in the electronic cooling device, the raised cloth, the metal braided band, the cold conduction medium and the thin film are thermocompression-molded by a mold so as to be fixedly connected to form a cold conduction module.

Preferably, the electronic cooling device further includes a base,
A PCB board group, the cooling plate, a heat dissipation sheet, and a heat dissipation fan are respectively mounted in the base;
A control button is mounted outside the base,
A headband is attached to both ends of the base by a headband ridge,
A mounting hole is provided in a bottom portion of the base, and the cooling plate is located in the mounting hole and contacts the cold conduction module.

Preferably, in the above electronic cooling device,
An escape hole is provided at a position corresponding to the cooling plate on the brushed cloth,
A copper piece is provided on the metal braid band at a position corresponding to the cooling plate, and a screw penetrates the copper piece and the clearance hole to fix and connect the copper piece and the base.

Preferably, in the above electronic cooling device,
An intake hole is provided at a position corresponding to the heat dissipation fan, an exhaust hole is provided at a position corresponding to the heat dissipation sheet, and both ends are respectively connected to the base, a mesh cover,
A dust-proof net frame, which has a frame structure and is located between the inner surface of the mesh cover and the base;
A screen provided in the frame structure provided with a dustproof hole having a hole diameter smaller than the hole diameter of the intake hole and / or the exhaust hole;
A baffle provided inside the mesh cover and located between the intake hole and the exhaust hole to prevent hot air from flowing back to the intake hole,
Is further provided.

  Preferably, in the electronic cooling device, the screen is knitted with a nylon thread, and the dustproof net frame is injection-molded together with the screen.

Preferably, in the electronic cooling device, the electronic cooling device is powered by a mobile power supply having a USB interface and an output of 5 V to 1 A,
And / or the heat dissipation sheet is a toothed heat dissipation sheet that is integrally processed,
And / or the heat dissipation fan is a frameless fan.

  As can be seen from the above technical solution, in the electronic cooling device according to the present invention, a metal braided band is used as a flexible cold conductive material instead of the metal cold conductive plate in the prior art, that is, the cooling plate is formed by the metal braided band. The cold source of the cooling surface is transmitted to the cold conducting medium. Since the metal braided band is woven or woven, it has a certain degree of flexibility, can be bent and deformed, can be closely fitted to foreheads of different shapes, its versatility, Degree and comfort both improved effectively. Furthermore, when the degree of adhesion is high, the problem that the local temperature is too low and the consumption of the cooling amount is large does not occur, which contributes to improvement in heat transfer efficiency and energy saving. Also, the cost of the metal braided band is lower than the cold conductive metal plate in the prior art.

  In order to more clearly explain the embodiments of the present invention or the technical solutions in the related art, the drawings that need to be used in the description of the embodiments or the related art will be briefly described below, and the drawings in the following description will be clearly described. Are only some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without creative labor.

It is a schematic diagram of the whole structure of the electronic cooling device concerning the example of the present invention. It is a mounting effect figure of the electronic cooling device concerning the example of the present invention. FIG. 2 is an exploded schematic view of the electronic cooling device according to the embodiment of the present invention. FIG. 3 is an exploded schematic view of the cold conduction module according to the embodiment of the present invention. 1 is a side sectional view of an electronic cooling device according to an embodiment of the present invention. It is a structural schematic diagram of the base concerning the Example of this invention. It is a mimetic diagram of a mounting structure of a base, a headband, and a headband pressing edge concerning an example of the present invention. FIG. 8 is a plan view of FIG. 7. It is a schematic diagram of the mounting structure of the heat radiation fan and the heat radiation sheet concerning the Example of this invention. It is a top view of FIG. FIG. 3 is a schematic diagram of a mounting structure of a base, a heat dissipation fan, a heat dissipation sheet, and a cooling plate according to an embodiment of the present invention. It is a top view of FIG. It is a mimetic diagram of a mounting structure of a base, a cooling plate, and a PCB board group concerning an example of the present invention. FIG. 14 is a plan view of FIG. 13. FIG. 3 is a diagram illustrating a power supply according to an embodiment of the present invention.

  The present invention uses a metal braided band as a flexible cold conductive material instead of a metal cold conductive plate in the prior art, which can be tightly adapted to foreheads of different shapes, which is not only lower in cost but also higher. An electronic cooling device having versatility, adhesion, and comfort is disclosed.

  Hereinafter, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and the described and described embodiments are only some of the embodiments of the present invention. Not all embodiments. Based on the embodiments of the present invention, those skilled in the art will understand that all other embodiments obtained under the assumption that no creative labor is performed are all within the protection scope of the present invention.

  As shown in FIGS. 1 to 15, FIG. 1 is a schematic diagram of the entire configuration of the electronic cooling device according to the embodiment of the present invention, and FIG. 2 is a mounting effect diagram of the electronic cooling device according to the embodiment of the present invention. FIG. 3 is an exploded schematic diagram of an electronic cooling device according to an embodiment of the present invention, FIG. 4 is an exploded schematic diagram of a cold conduction module according to an embodiment of the present invention, and FIG. 5 is an embodiment of the present invention. FIG. 6 is a schematic structural view of a base according to an embodiment of the present invention, and FIG. 7 is an attachment of a base, a headband, and a headband pressing edge according to the embodiment of the present invention. FIG. 8 is a schematic view of the structure, FIG. 8 is a plan view of FIG. 7, FIG. 9 is a schematic view of a mounting structure of a heat dissipation fan and a heat dissipation sheet according to the embodiment of the present invention, and FIG. FIG. 11 shows a base, a radiating fan, a radiating sheet, and a cooling fan according to the embodiment of the present invention. 12 is a plan view of FIG. 11, and FIG. 13 is a schematic view of a mounting structure of a base, a cooling plate, and a PCB board group according to an embodiment of the present invention. 14 is a plan view of FIG. 13, and FIG. 15 is a configuration diagram of a power supply according to the embodiment of the present invention.

  In the electronic cooling device according to the embodiment of the present invention, the cold source on the cooling surface of the cooling plate 6 is transmitted to the cold conduction medium 123 by the metal braid band 122. Here, the metal braided band 122 is a flexible band woven with a plurality of metal wires. Here, that the metal braid band 122 is knitted by a plurality of metal wires means that the metal braid band 122 may be knitted manually or may be knitted by a device. There is no particular limitation.

  As can be seen from the above technical solution, in the electronic cooling device according to the embodiment of the present invention, the metal braid band 122 is used as a flexible cold conductive material instead of the metal cold conductive plate in the prior art, that is, the metal braid band is used. By 122, the cold source on the cooling surface of the cooling plate 6 is transmitted to the cold conducting medium 123. Since the metal braid band 122 is woven or woven, it has a certain degree of flexibility, can be bent and deformed, can be closely fitted to different foreheads, and has versatility. Adhesion and comfort both improved effectively. Further, when the degree of adhesion is high, the problem that the partial temperature is too low and the consumption of the cooling amount is not large does not occur, which contributes to improvement of heat transfer efficiency and energy saving. Also, the cost of the metal braid band 122 is lower than that of the cold conductive metal plate in the prior art.

  The basic operation principle of the electronic cooling device according to the embodiment of the present invention is as follows. When the cooling plate 6 is energized, the generated amount of cold is transmitted to the metal braid band 122 and transmitted to the cold conduction medium 123, It is transmitted to the human epidermis. Since the temperature of the human body is higher than the temperature of the cold conduction medium 123, the purpose of lowering the temperature of the human body is achieved by performing heat exchange between the human skin and the cold conduction medium 123 based on the heat transfer principle. Further, mainly by the heat radiating fan 3 and the heat radiating sheet 4, the amount of heat generated on the other surface of the cooling plate 6 is forcibly transmitted to the air, and the whole process continues to circulate, thereby achieving a certain temperature lowering effect.

  In a specific embodiment, the metal wire used for the metal braid band 122 is made of aluminum. However, the present invention is not limited to this, and other metal materials (for example, steel wire, copper wire, etc.) may be adopted, but aluminum wire is lightweight and has excellent cold conduction performance among these metal materials. Manufacturing the above-mentioned metal braid band 122 with an aluminum wire is a preferable form to be protected in the present invention.

  Here, the wire diameter of the metal wire made of aluminum is a common specification, and in the manufacturing process, there is generally a demand for the number of metal wires, and there are various methods for knitting aluminum. Makes no specific request here.

  In a specific embodiment, as shown in FIGS. 3 and 4, the cold conduction module 12 in the electronic cooling device specifically includes a raised cloth 121, a metal braid band 122, a cold conduction medium 123, and a thin film 124. Here, the raised cloth 121 is located on the side of the metal braid band 122 near the cooling plate 6 and is fixedly connected to the metal braid band 122, and the cold conduction medium 123 is located on the side of the metal braid band 122 near the forehead of the human body. , Covered with a thin film 124, shaped and fixedly connected to the metal braid band 122.

  In the prior art electronic cooling device, since the amount of cold transmitted by the cold conductive metal plate is not uniform, it is necessary to add another cold conductive medium to conduct the cold uniformly to the human skin. The medium is generally a water bag. However, the uniform transmission of the cold source to the human epidermis by the water bag is relatively complicated in the manufacturing process, furthermore, the thermal efficiency (effective heat exchange level acting on the human body) is low, and the cold source consumed in the transmission is low. Is relatively large, power consumption is large, continuity is weak, power needs to be supplied using a dedicated battery or power adapter, cruising capacity is only 1-2h (input power 9V-2A), and usage time is short. In order to increase the cruising time, the volume of the battery is doubled and the burden on the mobile phone is increased.

  Regarding the above problems, the present invention uses a hydrogel material as the cold conduction medium 123, uniformly transmits a cold source to the human epidermis, has a high speed of cold conduction, has relatively high thermal efficiency, reduces cooling loss, and has a low power consumption. To reduce. Thereby, it is possible to use a mobile power source of 5V to 1A output of a normal USB interface (the input power is 5W, the energy acting on the human body is slightly attenuated), and the use is easier, more flexible, and the same. Under the condition of the electric energy, the cruising time is 4 hours, the usage time is increased by about 3 hours as compared with the conventional technical plan, the mobile power source can be easily replaced, and a longer usage time can be obtained.

  In a specific embodiment, the thin film 124 is a PU thin film or a TPU thin film. Here, the raised cloth 121 and the thin film 124 perform sealing and sealing functions in order to prevent evaporation of water from the gel material. However, the present invention is not limited to this, and other soft and gas-impermeable materials may be used as the sealing layer in the cold conduction module, and the present invention is not particularly limited thereto.

  Specifically, the edge of the metal braid band 122 is pressed to a fixed size by a mold, then covered with a raised cloth 121, a hydrogel material, and a thin film 124, and is thermocompression molded by a thermocompression bonding apparatus. To achieve the purpose of encapsulation. The cold conduction module 12 manufactured in this way has a good effect of transmitting the cold amount, and is also very soft, comfortable and adaptable to different head shapes.

  Further, in a specific embodiment, the electronic cooling device further includes a base 8. Here, as shown in FIGS. 3 and 4, in the cold conduction module 12, an escape hole (preferably a square hole) is provided at a position corresponding to the cooling plate 6 in the raised cloth 121, and the cooling plate in the metal braid band 122 is provided. A copper piece (preferably a square copper piece) is provided at a position corresponding to 6, and a screw penetrates the copper piece and the relief hole, and fixedly connects the copper piece and the base 8. As can be seen, the reason why the escape hole is formed at the center of the brushed cloth 121 is to bring the cooling plate 6 into direct contact with the copper piece and to play the role of escape. Since the material of the metal braid band is soft and the screw cannot be directly tightened to the metal braid band, a copper piece is provided on the metal braid band 122, and the role is to tighten and fix the cold conduction module 12 and the base 8 to each other. It is.

  Further, as shown in FIGS. 3 and 5, in the above-mentioned electronic cooling device, a printed circuit board (PCB) board group 7, a cooling plate 6, a heat radiating sheet 4, and a heat radiating fan 3 are mounted inside the base 8, respectively. The button 9 is attached to the outside of the base, the headband 10 is attached to both ends of the base 8 by the headband ridge 11, the attachment hole is provided at the bottom of the base 8, and the cooling plate 6 is located in the attachment hole. , And in contact with the cold conduction module, the cooling plate 6 is a semiconductor cooling plate. Here, the electric energy of the cooling plate 6 and the radiation fan 3 is supplied from a mobile power supply.

  In the related art, an aluminum profile is used as a heat dissipation sheet, the heat dissipation surface area per unit volume is limited due to process limitations, and the fixing method between the heat dissipation fan and the heat dissipation fan is superimposed. Is large in volume, heavy in weight, and difficult to mount. In a specific embodiment of the present invention, the adopted heat radiating sheet 4 is a toothed heat radiating sheet, which is formed by integrally processing, and the thickness of each single heat radiating sheet in the entire heat radiating sheet 4 is more. The heat dissipation sheet 4 is thin, and the heat dissipation area per unit volume in the entire heat dissipation sheet 4 becomes larger. Therefore, compared with the prior art, the toothed heat dissipation sheet according to the specific embodiment of the present invention can achieve the same heat dissipation area with a smaller volume and occupy less space. Alternatively, the heat radiation sheet has the same volume but has a larger heat radiation area, and the heat radiation effect is effectively improved.

  Further, in a specific embodiment of the present invention, the heat radiating fan 3 employed is a frameless fan (that is, a fan in which the outer frame of the heat radiating fan in the related art is removed), and the frameless fan 3 has a toothed heat radiating fan. As shown in FIGS. 9 and 10, a mounting space for disposing the frameless fan 3 is provided at the center of the toothed heat radiating sheet. The heat radiation sheet can increase the heat radiation area, configure the heat radiation passage, effectively improve the heat radiation efficiency, and reduce the volume and weight of the heat radiation module. As can be seen, by combining the frameless fan 3 and the heat dissipating sheet with extremely thin teeth with an arrangement structure in which the fan is built in, the layout space of the heat dissipating module can be made more rational, and The size and thickness can be reduced, and the mounting property can be improved.

  Further, as shown in FIGS. 3 and 5, the electronic cooling device further includes a mesh cover 1, a dustproof net frame 2, a screen and a baffle 5. Here, the mesh cover 1 is provided with an intake hole at a position corresponding to a heat dissipation fan, an exhaust hole at a position corresponding to a heat dissipation sheet 4, and both ends of the mesh cover 1 are connected to a base 8, respectively. The frame 2 is located between the inner surface of the mesh cover 1 and the base 5, and the dust-proof net frame 2 has a frame structure (particularly, the position corresponding to the ventilation hole in the mesh cover 1 has a frame structure). The screen is provided with a dustproof hole having a hole diameter smaller than that of a ventilation hole (an intake hole and an exhaust hole) in the mesh cover 1, and the baffle 5 is provided inside the mesh cover 1. It is located between the exhaust port and prevents hot air from returning to the intake port. Specifically, the screen is knitted with a nylon thread to form a 300-mesh nylon mesh, the hair cannot pass through the dust-proof holes on the screen, and the dust-proof net frame 2 is injection-molded together with the screen. In addition, since the mesh cover 1 is generally a metal mesh cover, and it is not possible to realize a hole diameter that is too small in the through-hole process, the dust-proof effect is achieved by providing the dust-proof net frame 2 with a screen.

  From the above, the basic role of each component in the electronic cooling device according to the specific embodiment of the present invention is as follows.

  The mesh cover 1 has ventilation holes (intake holes and exhaust holes) as external parts, and plays a role of protecting parts inside the device.

  The dustproof net frame 2 serves to prevent hair and foreign matter from entering the inside of the device.

  The heat radiating fan 3 plays a role of forcibly increasing air convection and improving heat radiating efficiency.

  The heat radiating sheet 4 plays a role of increasing the heat radiating area.

  The baffle 5 serves to prevent hot air from flowing back to the intake hole and to improve the heat radiation effect.

  The PCB board group 7 (also called a PCB motherboard) plays a role of controlling a device operation program.

  The cooling plate 6 serves to convert electric energy into a cooling source.

  The base 8 plays a role of attaching and protecting components inside the device as appearance components.

  The control button 9 plays a role of realizing a function of turning on / off and switching of the device.

  The headband 10 plays a role in mounting the device on the head.

  The headband pressing edge 11 serves to fix the headband.

  The raising cloth 121 plays a role of encapsulating the hydrogel material and the metal braid band together with the PU thin film or the TPU thin film by thermocompression bonding.

  The metal braid band 122 serves as a flexible cold conductive material to transmit the cooling amount of the cooling plate, and is a flexible material, so that it can bend and deform and adapt to different forehead shapes and sizes.

  The cold conduction medium 123 plays a role of uniformly transmitting the cold amount on the metal braid band to the human skin, and is soft and comfortable.

  The membrane 124 is used to fix the hydrogel material.

  Finally, in the text, the terms "comprising", "including", or any other variant, are intended to include non-exclusive inclusion, and a process, method, article or equipment comprising a series of elements Not only include those elements, but also include other elements not explicitly listed, or further include elements specific to such processes, methods, articles or equipment. In the absence of more restrictions, an element limited by the phrase "comprising one" does not exclude the presence of another, identical element in the process, method, article or facility containing the element.

  In this specification, each embodiment will be described in a progressive manner, and each embodiment will be described with emphasis on what is different from the other embodiments and the same part between each embodiment. May be referred to each other.

  The above description of the disclosed embodiments will enable those skilled in the art to make or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not limited to these embodiments shown herein, but should be accorded the widest scope consistent with the principles and novel features disclosed herein.

1-Mesh cover 2-Dust-proof net frame 3-Heat dissipation fan 4-Heat dissipation sheet 5-Baffle 6-Cooling plate 7-PCB board group 8-Base 9-Control button 10-Head band 11-Head band edge 12-Cold conduction module 13-Power line 121-Brushed cloth 122-Metal braid band 123-Cold conduction medium 124-Thin film

Claims (10)

  The metal braid band (122) transmits the cold source on the cooling surface of the cooling plate (6) to the cold conducting medium (123), and the metal braid band (122) is a flexible braided with a plurality of metal wires. An electronic cooling device, which is an elastic strip.   The electronic cooling device according to claim 1, wherein the metal wire is made of an aluminum material. Further comprising a brushed cloth (121);
The raised cloth (121) is located on the side of the metal braid band (122) near the cooling plate (6), and is fixedly connected to the metal braid band (122);
The cold conduction medium (123) is located on the side of the metal braid band (122) near the forehead of the human body, is covered with a thin film (124), is shaped, and is fixedly connected to the metal braid band (122). The electronic cooling device according to claim 1, wherein:   4. An electronic cooling device according to claim 3, wherein the cold conducting medium (123) is a hydrogel material, and the thin film (124) is a PU thin film or a TPU thin film.   The raised cloth (121), the metal braid band (122), the cold conduction medium (123) and the thin film (124) are fixedly connected to each other to form a cold conduction module (12). 5. The electronic cooling device according to claim 4, wherein the device is formed by pressure bonding. Further comprising a base (8),
A PCB board group (7), the cooling plate (6), a heat radiating sheet (4), and a heat radiating fan (3) are mounted in the base (8), respectively.
A control button (9) is mounted on the outside of said base,
A headband (10) is attached to both ends of said base (8) by headband ridges (11),
The cooling plate (6) is provided in the bottom of the base (8), and the cooling plate (6) is located in the mounting hole and contacts the cold conduction module. Electronic cooling device. An escape hole is provided in a position corresponding to the cooling plate (6) of the brushed cloth (121),
A copper piece is provided on the metal braid band (122) at a position corresponding to the cooling plate (6), and a screw penetrates the copper piece and the relief hole to connect the copper piece and the base (8). The electronic cooling device according to claim 6, wherein the electronic cooling device is fixedly connected. An intake hole is provided at a position corresponding to the heat radiating fan (3), an exhaust hole is provided at a position corresponding to the heat radiating sheet (4), and both ends of the mesh cover (1) are connected to the base (8). )When,
A dustproof net frame (2) having a frame structure and located between an inner surface of the mesh cover (1) and the base (5);
A screen provided in the frame structure provided with a dustproof hole having a hole diameter smaller than the hole diameter of the intake hole and / or the exhaust hole;
A baffle (5) provided inside the mesh cover (1) and located between the intake hole and the exhaust hole, for preventing hot air from flowing back to the intake hole. The electronic cooling device according to claim 6, characterized in that:   The electronic cooling device according to claim 8, wherein the screen is knitted with nylon thread, and the dust-proof net frame (2) is injection-molded together with the screen. Powered by mobile power supply with USB interface, 5V ~ 1A output,
And / or the heat dissipation sheet (4) is a toothed heat dissipation sheet that has been integrally processed,
Electronic cooling device according to claim 6, characterized in that the radiating fan (3) is a frameless fan.