WO2018108120A1

WO2018108120A1 - Electronic cooling instrument

Info

Publication number: WO2018108120A1
Application number: PCT/CN2017/116064
Authority: WO
Inventors: 单剑; 吴海良; 秦雪波; 郝卫峰
Original assignee: 新海科技集团有限公司
Priority date: 2016-12-15
Filing date: 2017-12-14
Publication date: 2018-06-21
Also published as: KR102301852B1; CN106510934A; KR20190094419A; JP2020503100A; JP6869352B2

Abstract

Disclosed is an electronic cooling instrument. The cold source of a cold face of a refrigerating piece (6) is transmitted to a cold conduction medium (123) through a metal braided band (122), and the metal braided band (122) is of a flexible band shape braided of multiple metal wires. The metal braided band is braided or woven, so that the metal braided band has certain flexibility and can be bent and deformed to fit foreheads of different shapes, and the universality, degree of fitting and level of comfort are increased effectively. Moreover, heat transfer efficiency can be increased, and energy saving is facilitated. Compared with cold conduction metal plates in the prior art, the metal braided band is lower in cost.

Description

Electronic temperature reducer

The present application claims priority to Chinese Patent Application No. 201611162022.3, the entire disclosure of which is incorporated herein in

Technical field

The invention relates to the technical field of household and medical auxiliary instruments, in particular to an electronic temperature reducer.

Background technique

Children's fever is a common disease. When the body temperature is below 39 °C, it is recommended to use physical cooling. Especially after the body temperature exceeds 39 °C, the child's body is not fully developed, which has the greatest damage to the brain and is even prone to brain dysfunction. Caused by unconsciousness, convulsions and other symptoms, medically known as high temperature convulsions. If you do not care in time, the number of convulsions will be too much, which will cause brain cell damage and affect mental development. Traditional physical cooling methods such as cooling stickers, ice packs, wet towels, and alcohol wipes all have various defects. Therefore, the market needs a safe, effective, lightweight, and portable cooling device.

In the prior art, the refrigeration structure of the desuperheater product using the semiconductor refrigerating sheet as the refrigerating component is mainly composed of the following components:

a. a semiconductor refrigeration sheet, which acts to generate a cold source, while cooling on one side and heating on the other side;

b. The heat sink acts to increase the heat dissipation area;

c. The fan acts to enhance ventilation, create continuous air convection, and circulate heat;

d. a cold-conducting metal plate, which acts to transfer the cold source of the cold surface of the cooling fin to the cooling medium;

e. Cold-conducting medium, because the cold-conducting metal plate connected to the semiconductor refrigeration sheet cannot uniformly transmit the cold source, it is necessary to use a cooling medium such as a water bladder or a water bag to uniformly distribute the uneven cold source on the cold-conductive metal plate. Passed out to reduce the amount of cold lost during the transfer process.

The above technical solution has the following drawbacks: the shape of the temperature reducer (especially the shape of the cold guide assembly) is fixed and cannot be deformed, and can only fit a human forehead shape, has poor versatility, low fit, and low comfort. However, if the bonding is incomplete, the cooling area is reduced, the cooling efficiency is low, and the local temperature is too low, which leads to large cooling consumption and large power consumption, which not only does not function well, but also has high power consumption and high production cost. .

Therefore, how to improve the versatility, fit and comfort of the temperature reducer is a technical problem that needs to be solved by those skilled in the art.

Summary of the invention

In view of the above, an object of the present invention is to provide an electronic temperature reducer which uses a metal braid as a flexible cold guide material, and replaces the metal cold guide plate in the prior art, and can be attached to a forehead of different shapes, which is not only low in cost, It also has high versatility, fit and comfort.

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

An electronic desuperheater transmits a cold source of a cold surface of a cooling sheet to a cooling medium through a metal braid, the metal braid being a flexible strip made of a plurality of wires.

Preferably, in the above electronic temperature desuperheater, the wire is made of aluminum.

Preferably, in the above electronic temperature desuperheater, a lifting cloth is further included,

The raised fabric is located on a side of the metal braid adjacent to the cooling sheet, and is fixedly connected to the metal braid;

The cooling medium is located on a side of the metal braid close to the forehead of the human body, is shaped by a film coating, and is fixedly connected to the metal braid.

Preferably, in the above electronic temperature desuperheater, the cooling medium is a hydrogel material, and the film is a PU film or a TPU film.

Preferably, in the above electronic desuperheater, the raised fabric, the metal braid, the cold guiding medium and the film are hot-pressed by a mold to form a cooling guide by fixing.

Preferably, in the above electronic temperature desuperheater, a base is further included,

a PCB board group, the cooling sheet, a heat sink, and a heat dissipation fan are all installed in the base;

a control button is mounted on an outer side of the base;

a headband is mounted on both ends of the base by a headband bead;

The bottom of the base is provided with a mounting hole, and the cooling fin is located in the mounting hole and is in contact with the cold guide assembly.

Preferably, in the above electronic temperature desuperheater,

a position corresponding to the cooling sheet on the raised fabric is provided with a avoiding through hole;

A copper piece is disposed on the metal braid at a position corresponding to the cooling sheet, and a screw passes through the copper piece and the through hole, and the copper piece is fixedly connected to the base.

Preferably, in the above electronic temperature desuperheater, the method further includes:

a mesh cover, an air inlet hole is disposed at a position corresponding to the heat dissipation fan, and an air outlet hole is disposed at a position corresponding to the heat dissipation plate, and two ends of the mesh cover are respectively connected to the base;

a dustproof net frame, which is a frame structure, and located between the inner side surface of the net cover and the base;

a screen disposed on the frame structure, the screen is provided with a dustproof hole, and a hole diameter of the dust hole is smaller than an aperture of the air inlet hole and/or the air outlet hole;

And a baffle disposed on the inner side of the net cover and located between the air inlet hole and the air outlet hole to prevent hot air from flowing back to the air inlet hole.

Preferably, in the above electronic desuperheater, the screen is woven from a nylon thread, and the dust net and the screen are injection molded together.

Preferably, in the above electronic temperature desuperheater, the electronic desuperheater is powered by a USB interface and a 5V-1A output mobile power source;

And/or, the heat sink is an integrally processed dense tooth fin;

And/or, the cooling fan is a frameless fan.

It can be seen from the above technical solution that the electronic temperature reducer provided by the present invention uses a metal braid as a flexible cold conductive material instead of the metal cold guide plate in the prior art, that is, the cold surface of the cold plate is replaced by a metal braid. The cold source is passed to the cold conducting medium. Since the metal braid is made or woven, it has a certain degree of flexibility, can be bent and deformed, and can be attached to a forehead of different shapes, and the versatility, fit and comfort are effectively improved. Moreover, if the degree of fit is high, there is no problem that the local temperature is too low and the amount of cold consumption is large, so that it is advantageous for improving heat transfer efficiency and contributing to energy saving. In addition, the metal braid is more cost-effective than prior art cold metal sheets.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a schematic overall structural diagram of an electronic temperature desuperheater according to an embodiment of the present invention;

2 is a wear effect diagram of an electronic temperature reducer according to an embodiment of the present invention;

3 is an exploded perspective view of an electronic temperature desuperheater according to an embodiment of the present invention;

4 is an exploded perspective view of a cold guide assembly according to an embodiment of the present invention;

5 is a side cross-sectional view of an electronic temperature reducer according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a base according to an embodiment of the present invention;

7 is a schematic view showing the assembly structure of a base, a headband, and a headband bead according to an embodiment of the present invention;

Figure 8 is a plan view of Figure 7;

FIG. 9 is a schematic diagram of an assembly structure of a heat dissipation fan and a heat sink according to an embodiment of the present invention; FIG.

Figure 10 is a plan view of Figure 9;

11 is a schematic diagram of an assembly structure of a base, a heat dissipation fan, a heat sink, and a cooling sheet according to an embodiment of the present invention;

Figure 12 is a plan view of Figure 11;

FIG. 13 is a schematic diagram of an assembly structure of a base, a cooling sheet, and a PCB board group according to an embodiment of the present invention; FIG.

Figure 14 is a plan view of Figure 13;

FIG. 15 is a schematic diagram of a power supply scheme according to an embodiment of the present invention.

Among them: 1-net cover, 2-dust net rack, 3-heating fan, 4-heat sink, 5-block,

6-cooling sheet, 7-PCB board set, 8-base, 9-control button, 10-head strap,

11-head strap, 12-cooling assembly, 13-power cord,

121-hair cloth, 122-metal tape, 123-cooling medium, 124-film.

detailed description

The invention discloses an electronic temperature reducer, which uses a metal braid as a flexible cold guide material, and replaces the metal cold guide plate in the prior art, and can be attached to a forehead of different shapes, which is not only low in cost but also has high generality. Sex, fit and comfort.

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

1 is a schematic diagram of an overall structure of an electronic desuperheater according to an embodiment of the present invention. FIG. 2 is a perspective view of an electronic desuperheater according to an embodiment of the present invention, and FIG. 3 is provided according to an embodiment of the present invention. FIG. 4 is an exploded perspective view of an electronic cooling device according to an embodiment of the present invention, and FIG. 6 is a side cross-sectional view of an electronic desuperheater according to an embodiment of the present invention. FIG. FIG. 7 is a schematic structural view of a base, a headband, and a headband bead according to an embodiment of the present invention, FIG. 8 is a top view of FIG. 7, and FIG. 9 is a cooling fan and a heat sink provided by an embodiment of the present invention. FIG. 10 is a top view of FIG. 9 , FIG. 11 is a schematic view showing an assembly structure of a base, a heat dissipation fan, a heat sink, and a cooling sheet according to an embodiment of the present invention, FIG. 12 is a top view of FIG. 11 , and FIG. 13 is an embodiment of the present invention. FIG. 14 is a top view of FIG. 13 and FIG. 15 is a schematic diagram of a power supply provided by an embodiment of the present invention. FIG.

In the electronic desuperheater provided by the embodiment of the present invention, the cold source of the cold surface of the refrigerating sheet 6 is transferred to the cooling medium 123 through the metal braid 122. The metal braid 122 is a flexible strip made of a plurality of wires. The metal braid 122 is made of a plurality of metal wires, which means that the metal braid 122 can be obtained by hand weaving or by machine weaving. The manufacturing process of the present invention is not specifically limited.

It can be seen from the above technical solution that the electronic cooling device provided by the embodiment of the present invention uses a metal braid 122 as a flexible cold conductive material instead of the metal cold guide plate in the prior art, that is, the metal braid 122 is used for cooling. The cold source of the cold surface of the sheet 6 is transferred to the cooling medium 123. Since the metal braid 122 is made or woven, it has a certain degree of flexibility, can be bent and deformed, and can be attached to a forehead of a different shape, and the versatility, fit, and comfort are effectively improved. Moreover, if the degree of fit is high, there is no problem that the local temperature is too low and the amount of cold consumption is large, so that it is advantageous for improving heat transfer efficiency and contributing to energy saving. In addition, the metal braid 122 is less expensive than prior art cold metal sheets.

The basic working principle of the electronic desuperheater provided by the embodiment of the invention is that the cooling amount generated by the refrigerating piece 6 is transmitted to the metal braid 122 after being energized, and then transmitted to the cold guiding medium 123, and then transmitted to the human skin. Since the human body temperature is higher than the temperature of the refrigerant guiding medium 123, the human skin and the cooling medium 123 exchange heat according to the principle of heat transfer to achieve the purpose of cooling the human body. In addition, the heat generated by the other side of the cooling sheet 6 is forcibly transmitted to the air mainly through the heat radiating fan 3 and the heat sink 4, and the whole process continues to circulate, thereby achieving a constant cooling effect.

In a specific embodiment, the metal braid 122 is made of aluminum. However, it is not limited thereto, and other metal materials (such as steel wire, copper wire, etc.) may be used, but the aluminum wire has the characteristics of light weight and excellent cold conductivity in these metal materials, so the above metal braid is made of aluminum wire. 122 is the preferred solution to be protected by the present invention.

Among them, the wire of aluminum wire is a general specification, and the number of wires is generally required in the manufacturing process, and the aluminum weaving method has various ways, and the present invention does not require specific requirements herein.

In a specific embodiment, as shown in FIG. 3 and FIG. 4, the cold guide assembly 12 in the electronic desuperheater specifically includes a raised cloth 121, a metal braid 122, a cooling medium 123, and a film 124. The raised fabric 121 is located on the side of the metal braid 122 adjacent to the cooling sheet 6 and is fixed to the metal braid 122. The cooling medium 123 is located on the side of the metal braid 122 near the forehead of the human body and is covered by the film 124. The shape is fixed and fixed to the metal braid 122.

In the electronic temperature desuperheater of the prior art, because the cooling amount of the cold-conducting metal plate is not uniform, it is necessary to add another cold-conducting medium to uniformly conduct the cooling amount to the human skin, and the cold-conducting medium is generally a water bag. However, the water source uniformly transmits the cold source to the human epidermis, which not only has a complicated manufacturing process, but also has low thermal efficiency (effective heat exchange level acting on the human body), large heat source for transmitting loss, large power consumption, and weak endurance. It must be powered by a dedicated battery or power adapter. The battery life is only 1-2h (input power 9V-2A), and the use time is short. If you want to increase the battery life, the battery volume will be multiplied and the carrying burden will be increased.

In view of the above problems, the present invention uses a hydrogel material as the cooling medium 123 to uniformly transfer the cold source to the human skin, and has a fast cooling rate and a high thermal efficiency, which reduces the cooling loss and reduces the power consumption. Therefore, the mobile power supply of the 5V-1A output of the conventional USB interface (input power 5W, the energy applied to the human body is only slightly attenuated) can be used, and the use is more convenient and flexible, and the battery life is 4 hours under the same power condition. It takes about 3 hours longer than the prior art solution, and it is convenient to replace the mobile power source for longer use time.

Moreover, in a specific embodiment, the film 124 is a PU film or a TPU film. Among them, the raised cloth 121 and the film 124 function to close and seal to prevent evaporation of moisture of the gel material. However, the present invention is not limited thereto, and other soft and gas-impermeable materials may be used as the sealing layer in the above-mentioned cooling guide assembly.

Specifically, the edge of the metal braid 122 is first pressed into a fixed size by a mold, and then wrapped by the raised fabric 121, the hydrogel material, and the film 124 and thermoformed by a hot pressing device to achieve the purpose of packaging. The cold guide assembly 12 thus obtained not only has a good cold transfer effect, but also is very soft and comfortable, and can be adapted to different head types.

Moreover, in a specific embodiment, the electronic desuperheater further includes a base 8. As shown in FIG. 3 and FIG. 4, in the cold guide assembly 12, the position of the raised fabric 121 corresponding to the cooling sheet 6 is provided with a through hole (preferably a square hole); the metal braid 122 and the cooling sheet 6 The corresponding position is provided with a copper piece (preferably a square copper piece), and the screw passes through the copper piece and the through hole, and the copper piece is fixedly connected to the base 8. It can be seen that the center of the raised cloth 121 is provided with a avoiding through hole for the direct contact of the cooling sheet 6 with the copper piece to avoid the position. Since the metal braiding material is soft and the screw cannot be directly locked on the metal braid, the metal braid 122 is provided with a copper piece for locking and fixing the cold guide assembly 12 and the base 8.

Further, as shown in FIG. 3 and FIG. 5, in the above electronic temperature desuperheater, a PCB (Printed Circuit Board) board group 7, a cooling sheet 6, a heat sink 4, and a cooling fan 3 are all mounted on the base 8. The button 9 is mounted on the outer side of the base, and the headband 10 is mounted on the two ends of the base 8 through the headband bead 11. The bottom of the base 8 is provided with a mounting hole, and the cooling fin 6 is located in the mounting hole and is in contact with the cold guide assembly. The cooling sheet 6 is a semiconductor refrigeration sheet. Among them, the electric energy of the cooling fins 6 and the heat radiating fan 3 is supplied by the mobile power source.

In the prior art, an aluminum profile is used as a heat sink. Due to the limitation of the process, the heat dissipation surface area per unit volume is limited, and the fixing manner with the heat dissipation fan is superimposed. This method leads to a larger volume and a heavier quality of the electronic temperature reducer. It is not easy to wear. In the specific embodiment of the present invention, the heat sink 4 is a dense tooth heat sink, which is integrally processed, and each heat sink sheet has a thinner thickness and a heat dissipation area per unit volume of the entire heat sink 4. Bigger. Therefore, compared with the prior art, the dense tooth fin provided by the specific embodiment of the present invention can achieve the same heat dissipation area with a smaller volume, occupying a smaller space; or the heat sink has the same volume, but the heat dissipation area thereof. Larger, the heat dissipation effect is effectively improved.

In the embodiment of the present invention, the heat dissipation fan 3 is a frameless fan (that is, a fan obtained by canceling the outer frame of the heat dissipation fan in the prior art), and the frameless fan 3 is placed in the dense tooth heat sink, that is, As shown in FIG. 9 and FIG. 10, the middle portion of the dense tooth fin is provided with an installation space for placing the frameless fan 3. The two ends of the dense tooth fin are a plurality of heat dissipation pieces to increase the heat dissipation area and constitute a heat dissipation channel. It can effectively improve the heat dissipation efficiency and reduce the volume and weight of the heat dissipation module. It can be seen that the frameless fan 3 and the ultra-thin dense tooth heat sink, combined with the fan built-in such an arrangement, can make the layout space of the heat dissipation module more reasonable, and achieve the purpose of reducing the product volume and making it thinner and lighter and more convenient to wear.

Further, as shown in FIG. 3 and FIG. 5, in the above electronic temperature desuperheater, the net cover 1, the dust net frame 2, the screen mesh and the flap 5 are further included. The mesh cover 1 and the mesh cover 1 are provided with air inlet holes at positions corresponding to the heat dissipation fan, and the air outlet holes are disposed at positions corresponding to the heat dissipation fins 4, and the two ends of the mesh cover 1 are respectively connected with the base 8; The frame 2 is located between the inner side surface of the net cover 1 and the base 5, and the dustproof net frame 2 is a frame structure (in particular, a position corresponding to the ventilation hole on the net cover 1 is a frame structure); the screen mesh is disposed on the frame structure The screen is provided with a dustproof hole whose aperture is smaller than the aperture of the ventilation hole (the air inlet hole and the air outlet hole) on the mesh cover 1; the blocking piece 5 is disposed on the inner side of the mesh cover 1 and is located in the air inlet Between the hole and the air outlet, to prevent hot air from flowing back to the air inlet. Specifically, the above-mentioned screen mesh is made of a nylon thread, and constitutes a 300-mesh nylon net, and the hair cannot pass through the dust-proof hole of the screen, and the dust-proof grid 2 and the screen are injection-molded together. Moreover, the mesh cover 1 is generally a metal mesh cover, and the arrangement of the through hole is not realized in a too small aperture. Therefore, the dustproof net frame 2 with the mesh is provided to achieve the dustproof effect.

In summary, the basic functions of the components in the electronic desuperheater provided by the specific embodiments of the present invention are as follows:

The net cover 1 functions as an appearance part, and is provided with ventilation holes (intake holes and air outlet holes) to protect internal components of the machine;

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

The cooling fan 3 functions to forcibly increase air convection and improve heat dissipation efficiency;

The heat sink 4 functions to increase the heat dissipation area;

The baffle 5 acts to prevent hot air from flowing back to the air inlet hole to increase the heat dissipation effect;

PCB board group 7 (also known as PCB board), which functions to control the machine operation program;

a cooling sheet 6 for converting electrical energy into a cooling source;

The base 8 functions as an appearance member and installs and protects internal components of the machine;

Control button 9, functioning as a function for switching machine and switching;

The headband 10 functions to wear the machine on the head;

The headband bead 11 acts as a fixed headband;

a raised cloth 121 for hot pressing encapsulation of the hydrogel material and the metal braid together with the PU film or the TPU film;

The metal braid 122 functions to transfer the cooling capacity of the cooling sheet as a flexible cold conductive material. Because it is a flexible material, it can be bent and deformed to adapt to different forehead shapes and sizes;

The cooling medium 123 acts to uniformly conduct the cold amount on the metal braid to the human skin, which is soft and comfortable;

A film 124 for securing the hydrogel material.

Finally, it is also to be understood that the term "comprises", "comprising" or any other variants thereof is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device comprising a plurality of elements includes Those elements, but also other elements not explicitly listed, or elements that are inherent to such a process, method, item or equipment. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

The various embodiments in the present specification are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same similar parts between the various embodiments may be referred to each other.

The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments are obvious 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 to be limited to the embodiments shown herein, but the scope of the invention is to be accorded

Claims

An electronic temperature desuperheater characterized in that a cold source of a cold surface of a cooling sheet (6) is transmitted to a cold guiding medium (123) by a metal braid (122), the metal braid (122) being composed of a plurality of metals A flexible ribbon made of silk.
The electronic desuperheater according to claim 1, wherein the wire is made of aluminum.
The electronic desuperheater according to claim 1, further comprising a raised cloth (121),

The raised fabric (121) is located on a side of the metal braid (122) adjacent to the cooling sheet (6), and is fixedly connected to the metal braid (122);

The cooling medium (123) is located on a side of the metal braid (122) close to the forehead of the human body, is shaped by the film (124), and is fixedly connected to the metal braid (122).
The electronic desuperheater according to claim 3, wherein the cooling medium (123) is a hydrogel material, and the film (124) is a PU film or a TPU film.
The electronic desuperheater according to claim 4, wherein said raised fabric (121), said metal braid (122), said cold guiding medium (123) and said film (124) are passed through a mold heat Press forming, to form a cold guide assembly (12).
The electronic desuperheater according to claim 5, further comprising a base (8),

a PCB board group (7), the cooling sheet (6), a heat sink (4), and a heat dissipation fan (3) are all mounted in the base (8);

a control button (9) is mounted on an outer side of the base;

a headband (10) is mounted on both ends of the base (8) by a headband bead (11);

The bottom of the base (8) is provided with a mounting hole, and the cooling fin (6) is located in the mounting hole and is in contact with the cold guide assembly.
The electronic temperature drop meter according to claim 6, wherein

a position corresponding to the cooling sheet (6) on the raised fabric (121) is provided with a avoiding through hole;

a copper piece is disposed on the metal braid (122) at a position corresponding to the cooling sheet (6), and a screw passes through the copper piece and the through hole, and the copper piece and the base are 8) Solid connection.
The electronic desuperheater according to claim 6, further comprising:

a mesh cover (1), an air inlet hole is disposed at a position corresponding to the heat dissipation fan (3) on the mesh cover (1), and an air outlet hole is disposed at a position corresponding to the heat dissipation plate (4), Two ends of the net cover (1) are respectively connected to the base (8);

a dustproof net frame (2), which is a frame structure, and located between the inner side surface of the net cover (1) and the base (5);

a screen disposed on the frame structure, the screen is provided with a dustproof hole, and a hole diameter of the dust hole is smaller than an aperture of the air inlet hole and/or the air outlet hole;

A baffle (5) is disposed on the inner side of the net cover (1) and located between the air inlet hole and the air outlet hole to prevent hot air from flowing back to the air inlet hole.
The electronic desuperheater according to claim 8, wherein the screen is woven from a nylon thread, and the dust net (2) and the screen are injection molded together.
The electronic desuperheater according to claim 6, wherein the electronic desuperheater is powered by a USB interface and a 5V-1A output mobile power source;

And/or, the heat sink (4) is an integrally processed dense tooth fin;

And/or, the cooling fan (3) is a frameless fan.