WO2021184853A1

WO2021184853A1 - Heater for mask, electric heating mask and processing method therefor

Info

Publication number: WO2021184853A1
Application number: PCT/CN2020/136449
Authority: WO
Inventors: 李壮; 刘寒蒙; 姚志霞; 刘耀晟; 刁永兴; 胡广兴
Original assignee: 中国科学院长春应用化学研究所
Priority date: 2020-03-16
Filing date: 2020-12-15
Publication date: 2021-09-23
Also published as: CN111213933A

Abstract

A heater for a mask, an electric heating mask and a processing method therefor. The heater comprises: a heating body (301) which is of a sheet structure and has a control circuit electrically connected to an external power supply and used for converting an electrical energy into a thermal energy; and a heat transfer breathable body which is a heat conduction body, has breathable holes, is provided on the surface of the heating body (301), and contacts with the heating body (301) for transferring heat.

Description

Heater for mask, electric heating mask and processing method thereof

This disclosure claims the priority of Chinese Patent Application No. 202010180203.9 filed on March 16, 2020, the disclosure of which is incorporated herein by reference.

Technical field

The present disclosure relates to the technical field of protective devices, in particular to heaters for masks, electrically heated masks and processing methods thereof.

Background technique

Wearing medical protective masks has become an effective way for people to prevent new coronaviruses or influenza viruses from spreading viruses through the mouth and nose. In cold places, especially outdoors, the water vapor exhaled when wearing a mask condenses into cold water or even freezes on the mask. Ice makes people very uncomfortable. What's more serious is that the condensed water destroys the static charge in the medical protective mask and reduces the adsorption effect of the medical protective mask on the virus. At the same time, the virus survives longer at low temperatures.

For patients carrying the virus, the exhaled virus is enriched in the mask to form a more concentrated source of virus. As the inhaled virus enters the human body again, the inhaled cold air is more conducive to the virus infection and aggravates the patient’s condition. , Or delay the recovery time. For healthy people, the surface of the mask is rich in viruses, the static charge in the medical protective mask is reduced, and the virus is more likely to enter the human body. The cold air inhaled increases the risk of virus infection. In addition, if the used mask is not handled properly, it will become even worse. A serious source of pollution.

The virus has strong activity and longer survival time in a cold environment, but it has a short survival time in a hot environment. It is completely inactivated in 30 minutes at 56°C. This is why viral flu mainly occurs in the cold season.

However, there is no mask structure in the prior art that can effectively solve the above technical problems. Therefore, based on the above technical problems, those skilled in the art urgently need to develop a new type of mask structure to effectively kill viruses and perform subsequent treatments.

Summary of the invention

The purpose of the present disclosure is to provide an electrically heated mask with a novel structure, effective killing of viruses, reducing virus activity, convenient use, recycling, and reducing environmental pollution, and a processing method thereof. The heating mask of the present disclosure is for patients carrying viruses, the exhaled virus is enriched in the mask, but high temperature reduces the activity of the virus, shortens the survival time of the virus or even inactivates; and the inhaled hot air is not conducive to the survival of the virus. Heating masks can not only prevent the virus from spreading in patients, but also provide auxiliary treatment to patients and speed up recovery; for healthy people, the temperature of the outer surface of heating masks is high, and the probability of survival of the virus is small. The hot air inhaled like summer is not conducive to the virus. Infection, to prevent the occurrence and spread of viral influenza.

In one aspect of the present disclosure, there is provided a heater for a mask, wherein the heater includes:

A heating body, the heating body has a sheet structure and has a control circuit electrically connected to an external power source for converting electric energy into heat energy; and

A heat-transfer gas-permeable body, the heat-transfer gas-permeable body is a heat conductor and has a vent hole, and the heat-transfer gas-permeable body is arranged on the surface of the heating body and contacts the heating body to transfer heat.

According to an embodiment of the present disclosure, the control circuit is used to control the heating temperature of the heating body within 20°C to 60°C.

According to an embodiment of the present disclosure, the heating body adopts a carbon fiber cloth heating sheet, graphite, graphene or metal resistance; and/or the heat transfer gas body is a copper mesh, a gold mesh, a silver mesh, a stainless steel mesh or an aluminum mesh.

According to an embodiment of the present disclosure, the heater includes two pieces of the heat-transfer gas-permeable body, the two pieces of the heat-transfer gas-permeable body are attached to each other, and the heating body is arranged between the two pieces of the heat-transfer gas-permeable body.

According to an embodiment of the present disclosure, the outer surface of the heating body is wrapped with an insulating layer.

According to an embodiment of the present disclosure, the heater further includes:

A power cord, the power cord is connected to the control circuit of the heating body, and is used to electrically connect to an external power source.

According to an embodiment of the present disclosure, the power cord has a USB interface.

According to an embodiment of the present disclosure, the area of the heat transfer gas-permeable body is larger than the area of the heating body; and/or the number of the gas-permeable holes of the heat transfer gas body is 30-100.

According to another aspect of the present disclosure, there is provided an electrically heated mask, which includes:

The first mask layer, the first mask layer is a sheet structure;

The second mask layer, the second mask layer has a sheet structure, and is fixedly connected with the first mask layer;

The heating structure adopts the aforementioned heater for masks, and the heating structure is a sheet structure, which is arranged between the first mask layer and the second mask layer.

According to an embodiment of the present disclosure, the first mask layer and the second mask layer adopt medical mask fabrics.

According to an embodiment of the present disclosure, the area of the first mask layer is not less than the area of the second mask layer, so that the first mask layer can completely cover the second mask layer.

According to an embodiment of the present disclosure, the area of the heat transfer vent is matched with the area of the second mask layer, so that the second mask layer can completely cover the heat transfer vent.

According to an embodiment of the present disclosure, the electrically heated mask further includes: a mask fixing structure arranged at the edge of the first mask layer and/or the second mask layer.

According to an embodiment of the present disclosure, the mask fixing structure is a strap.

According to an embodiment of the present disclosure, the electrically heated mask further includes: an external portable power source, which is used as the external power source to supply power to the heating body.

According to another aspect of the present disclosure, there is provided a method for processing an electrically heated mask as described above, including:

Prepare the first mask layer and the second mask layer by using medical mask fabrics, and design a lace structure at least on both sides of the first mask layer;

Take two pieces of copper mesh as a heat transfer vent, and place the heating body in the center of the copper mesh, fix the edges of the two copper meshes with fasteners and close the space between the two copper meshes to ensure the two pieces of copper The nets are attached to each other to clamp the heating body;

The prepared heating structure is placed in the center of the first mask layer and the second mask layer, and the first mask layer, the heating structure and the second mask layer are fixed by fasteners.

According to an embodiment of the present disclosure, the fastener is a fastening nail or a wire.

In the above technical solutions, an electrically heated mask and a processing method thereof provided by the present disclosure have the following beneficial effects:

The present disclosure designs a heating mask, which integrates a heating structure on two mask layers to continuously heat after power supply, and is used in conjunction with existing medical masks to realize real-time heating for wearing medical masks, which not only ensures that the wearing temperature is appropriate, It can also prevent the condensation of exhaled water vapor from destroying the static charge in the medical mask, and improve the ability of virus adsorption.

The heating mask of the present disclosure is for patients carrying viruses, the exhaled virus is enriched in the mask, but high temperature reduces the activity of the virus, shortens the survival time of the virus or even inactivates; and the inhaled hot air is not conducive to the survival of the virus. Therefore, thermal masks can not only prevent the spread of the virus in patients, but also provide auxiliary treatment to patients and speed up recovery; for healthy people, the temperature of the outer surface of electric heating masks is high, and the probability of survival of the virus is small. Inhaled hot air like summer is not conducive to Virus infection prevents the occurrence and spread of viral influenza. After using the electrically heated mask, take off the mask and adjust the temperature to about 56°C to 60°C and continue heating for 30 minutes, which can completely kill the virus and recycle it.

The heating mask of the present disclosure is convenient to obtain materials and easy to process.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application or in the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings in the following description are only recorded in the present disclosure. For some of the embodiments, for those of ordinary skill in the art, other drawings can be obtained based on these drawings.

FIG. 1 is a first structural diagram of an electrically heated mask and a processing method thereof provided by an embodiment of the disclosure;

FIG. 2 is a second structural schematic diagram of an electrically heated mask and a processing method thereof provided by an embodiment of the disclosure;

FIG. 3 is a schematic structural diagram of a heating structure of an electrically heated mask and a processing method thereof provided by an embodiment of the disclosure.

Description of reference signs:

1- The first mask layer;

2- The second mask layer;

3- Heating structure;

101-lace structure;

301-heating body;

302-copper mesh;

303-Power cord.

Detailed ways

In order to enable those skilled in the art to better understand the technical solutions of the present disclosure, the present disclosure will be further described in detail below with reference to the accompanying drawings.

Example one:

1 to 3, the electrically heated mask of the present disclosure includes a first mask layer 1; and a second mask layer 2 integrated inside the first mask layer 1, wherein the first mask layer 1 and the second mask layer The materials of 2 are all medical mask fabrics.

The heating mask also includes a heating structure 3 integrated between the first mask layer 1 and the second mask layer 2. The heating structure 3 has a heating body 301 and a heat transfer gas body fixed on the surface of the heating body 301. The heat transfer gas body has a larger surface area than the heating body 301.

The heating body 301 is equipped with an external control circuit, and the heating body 301 controls the heating temperature range of 20°C to 60°C through the control circuit. Exemplarily, the control circuit of the heating body 301 is electrically connected with a power cord 303, and the power cord 303 is extended and connected to the outside. Specifically, the input end of the power cord 303 is electrically connected to an external power supply device to supply power to the heating body 301 through the external power supply device, so that the heating body 301 converts electrical energy into heat energy.

Specifically, this embodiment discloses a heating mask, which has two mask layers, a first mask layer 1 and a second mask layer 2, respectively, the first mask layer 1 and the second mask layer 2 in this embodiment It is sufficient to directly use conventional medical mask fabrics, such as non-woven fabrics; and considering the comfort and air permeability, the first mask layer 1 and the second mask layer 2 are generally single-layer structure, and at the same time, the two-layer mask The heating structure 3 is integrated in the layer. After the heating structure 3 is energized, the heating structure 3 continues to generate heat, and the heating temperature range is set. The heating structure 3 transfers heat to the first mask layer 1 and the second mask layer 2, which is The warmth retention function can also transfer heat to the internal medical mask after being worn in combination with the medical mask, which can increase the temperature of the medical mask, avoid damaging the static charge of the medical mask, and improve the adsorption force of the virus. The temperature range of the heating structure of the heating mask is set between 20°C and 60°C, which can ensure that it is heated to a suitable temperature of 20-30°C during use, and it can also be heated to 56°C in order to kill viruses. The above can kill two birds with one stone.

Preferably, in this embodiment, the area of the first mask layer 1 is not less than the area of the second mask layer 2, and the lace structure 101 is formed on both sides of the first mask layer 1;

The heating structure 3 is respectively fixed and attached to the first mask layer 1 and the second mask layer 2 through a heat-transfer and gas-permeable body.

First of all, this embodiment specifically introduces the structure of the first mask layer 1 and the second mask layer 2. After practice, it is found that the area of the first mask layer 1 is preferably larger than the area of the second mask layer 2, so that the first mask layer 1 and the second mask layer 2 can be The second mask layer 2 and the heating structure 3 are integrally wrapped to avoid heat loss and improve comfort. At the same time, a lace structure 101 is designed on both sides of the first mask layer 1, which is convenient to wear.

In addition, based on the above-mentioned embodiment, the heating structure 3 in this embodiment includes a heating body 301 and two pieces of heat transfer gas-permeable bodies;

The heating body 301 is a carbon fiber cloth heating sheet, and the size of the heating body 301 is 60mm×80mm or 40mm×40mm;

A copper mesh 302 is used as the heat transfer vent; for example, the heat transfer vent uses a copper mesh 302 with a size of 60mm×160mm and a mesh size of 100;

A waterproof and insulating carbon fiber heating cloth is integrated inside the heating body 301, and the carbon fiber heating cloth is electrically connected to an external power supply device through a power cord 303 to convert electrical energy into heat.

The surface of the aforementioned heat transfer gas-permeable body is configured as the heat transfer surface of the heating body 301;

The surface area of the heat transfer and gas-permeable body at least matches the surface area of the second mask layer 2;

The mesh holes of the heat transfer gas-permeable body are configured as ventilation holes.

The heating structure 3 is the main design point of the application, and it is composed of a heating body 301 and two heat-transfer vents covering both sides of the heating plate 301. Among them, the heating body 301 directly selects a carbon fiber cloth heating sheet, the carbon fiber cloth heating sheet has a heating circuit, and the heating circuit is electrically connected to a power cord 303. The power cord 303 extends outwards and has an input terminal reserved. The input terminal generally selects the USB interface. In addition, copper mesh 302 is selected for the above-mentioned heat transfer vent, and the specifications of copper mesh 302 are detailed above, but are not limited to the above specifications, which can be appropriately adjusted according to the size of the heating mask. The purpose of selecting the copper mesh 302 for the heat transfer vent of this embodiment is that the copper mesh 302 is a good heat conductor and has a certain sterilization effect while conducting heat. In addition, the copper mesh 302 is designed with a mesh size of 100 to ensure Breathable, and the area of the copper mesh 302 is larger than the area of the heating body 301, which can expand the air-permeable surface in the mask. Since the heating body 301 has poor air permeability, it can be covered by two copper meshes 302 on both sides of the heating body 301. The mesh holes evenly opened on the surface of the copper mesh 302 are used to complete the conduction of air flow, increase the breathing surface, and improve the comfort. Finally, this design has a certain waterproof effect. After using the electrically heated mask, take off the mask and adjust the temperature to about 56°C to 60°C and continue heating for 30 minutes, which can completely kill the virus and recycle it.

Preferably, in order to improve safety, the outer surface of the heating body 301 is wrapped with an insulating layer.

Preferably, the external power supply device is a mobile power supply.

It should be noted that in the embodiments of the present disclosure, the heating sheet is made of carbon fiber cloth, and the heat transfer vent is made of copper mesh. In other embodiments, graphite, graphene, metal resistors, etc. can also be used to make light and non-toxic electric heating. The sheet is made of various air-permeable and thermally conductive non-toxic materials such as gold mesh, silver mesh, stainless steel mesh, aluminum mesh, etc.

Embodiment two:

The processing method of an electrically heated mask disclosed in the present disclosure is characterized in that it mainly includes the following steps:

S101. Prepare the first mask layer 1 and the second mask layer 2 using medical mask fabrics, and design lace structures 101 on at least both sides of the first mask layer 1;

S102. Take two pieces of copper mesh 302 as a heat transfer vent, and place the waterproof insulating heating body 301 at the center of the copper mesh 302, and fix the edges of the two copper meshes 302 with fasteners and seal the two copper meshes 302 The space between to ensure that the two pieces of copper mesh 302 are attached to each other to clamp the heating body 301 to complete the preparation of the heating structure 3;

S103. Place the prepared heating structure 3 in the center of the first mask layer 1 and the second mask layer 2, and use fasteners to fix the first mask layer 1, the heating structure 3, and the second mask layer 2 , Complete the preparation of the heating mask.

Among them, the fasteners in the above steps S102 and S103 are fastening nails or threads.

This second embodiment mainly introduces the processing method of the heating mask. Among them, the first mask layer 1 and the second mask layer 2 are more convenient to obtain materials, and both use medical fabrics, or directly use the filter layer in the medical mask in the prior art. Remove, leave only the surface layer, then fix the prepared heating structure compositely in the two mask layers, and then fix it as a whole.

The heating mask is also more flexible in use:

The first method of use: the heating mask can be worn directly as a mask. Since the first mask layer 1 and the second mask layer 2 of the heating mask are made of medical fabrics as the main material, they can directly contact the skin. After wearing, the heating structure will be heated. The power cord 303 of 3 is connected to an external power supply device (power bank) to supply power to the heating plate in the heating structure 3. At this time, the heating structure 3 will continue to heat, and the heating temperature is controlled, so that a more suitable temperature can be worn. After wearing, the heating temperature can be adjusted to above 56°C to sterilize the mask after wearing. In addition, the first mask layer 1 and the second mask layer 2 of the present application are fixed by fastening nails or wires, and can be disassembled, which facilitates replacement.

The second method of use: the heating mask is worn together with the medical mask. First, wear the medical mask, and then wear the heating mask on the outside of the medical mask, and power on, the heating structure 3 will continue to heat up and heat the medical mask. Ensure that the entire mask position is at a more suitable temperature during the wearing process. After wearing, remove the two together and adjust the heating structure to above 56°C to achieve sterilization and disinfection of medical masks.

The present disclosure designs a heating mask. By integrating the heating structure 3 on the two mask layers, it can be continuously heated after power is supplied, and it can be used in conjunction with existing medical masks to realize real-time heating for wearing medical masks, which ensures that the wearing temperature is suitable. It can also prevent the condensation of exhaled water vapor from destroying the static charge in the medical mask and improve the ability of virus adsorption.

For patients carrying the virus, the exhaled virus is enriched in the mask, but the heating mask of the present disclosure can reduce the activity of the virus through high temperature, shorten the survival time of the virus or even inactivate; and the inhaled hot air is not conducive to the survival of the virus. Therefore, thermal masks can not only prevent the spread of the virus in patients, but also provide auxiliary treatment to patients and speed up recovery; for healthy people, the temperature of the outer surface of electric heating masks is high, and the probability of survival of the virus is small. Inhaled hot air like summer is not conducive to Virus infection prevents the occurrence and spread of viral influenza.

The heating mask of the present invention is convenient to obtain materials and easy to process.

The foregoing has only described some exemplary embodiments of the present invention by way of illustration. Needless to say, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, various different ways can be used to The described embodiment is modified. Therefore, the above-mentioned drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

A heater for masks, wherein the heater includes:

A heating body (301), the heating body (301) is of a sheet structure and has a control circuit electrically connected to an external power source for converting electrical energy into heat energy; and

A heat-transfer gas-permeable body, the heat-transfer gas-permeable body is a heat conductor and has vent holes, and the heat-transfer gas body is arranged on the surface of the heating body (301) and contacts the heating body (301) to transfer heat.
The heater according to claim 1, wherein the control circuit is used to control the heating temperature of the heating body (301) within 20°C to 60°C.
The heater according to claim 1, wherein the heating body (301) adopts a carbon fiber cloth heating sheet, graphite, graphene or metal resistance; and/or

The heat transfer gas-permeable body is copper mesh (302), gold mesh, silver mesh, stainless steel mesh or aluminum mesh.
The heater according to claim 1, wherein the heater comprises two pieces of the heat-transfer gas-permeable body, the two pieces of the heat-transfer gas-permeable body are attached to each other, and the heating body (301) is arranged in the two pieces of the gas-permeable body. The heat transfer between the gas-permeable body.
The heater according to claim 1, wherein the outer surface of the heating body (301) is wrapped with an insulating layer.
The heater according to claim 1, wherein the heater further comprises:

A power cord (303), the power cord (303) is connected to the control circuit of the heating body (301), and is used for electrically connecting to an external power source.
The heater according to claim 6, wherein the power cord (303) has a USB interface.
The heater according to claim 1, wherein the area of the heat transfer gas-permeable body is larger than the area of the heating body (301); and/or

The number of ventilation holes of the heat transfer gas-permeable body is 30-100.
An electrically heated mask, which includes:

The first mask layer (1), the first mask layer (1) is a sheet structure;

The second mask layer (2), the second mask layer (2) is a sheet structure, and is fixedly connected to the first mask layer (1);

The heating structure (3) adopts the heater for masks according to any one of claims 1-8, and the heating structure (3) is a sheet structure and is arranged on the first mask layer (1) and the first mask layer (1). In the middle of the second mask layer (2).
The electrically heated mask according to claim 9, wherein the first mask layer (1) and the second mask layer (2) use medical mask fabrics.
The electrically heated mask according to claim 9, wherein the area of the first mask layer (1) is not less than the area of the second mask layer (2), so that the first mask layer (1) can completely cover The second mask layer (2).
The electrically heated mask according to claim 9, wherein the area of the heat transfer gas body matches the area of the second mask layer (2), so that the second mask layer (2) can completely cover the Heat transfer gas body.
The electrically heated mask according to claim 9, further comprising:

The mask fixing structure is arranged on the edge of the first mask layer (1) and/or the second mask layer (2).
The electrically heated mask according to claim 13, wherein the mask fixing structure is a strap.
The electrically heated mask according to claim 9, further comprising:

An external mobile power supply is used as the external power supply to supply power to the heating body (301).
A method for processing an electrically heated mask according to any one of claims 9-15, comprising:

Prepare the first mask layer (1) and the second mask layer (2) from the medical mask fabric, and design the lace structure (101) at least on both sides of the first mask layer (1);

Take two pieces of copper mesh (302) as a heat transfer vent, and place the heating body (301) in the center of the copper mesh (302), and fix the edges of the two copper meshes (302) with fasteners and seal the two pieces of copper mesh (302). The space between the copper meshes (302) is to ensure that the two copper meshes (302) are attached to each other to clamp the heating body (301);

Place the prepared heating structure (3) in the center of the first mask layer (1) and the second mask layer (1), and use fasteners to fix the first mask layer (1) and heating structure (3) Fix it with the second mask layer (2).
The processing method according to claim 16, wherein the fastener is a fastener nail or a wire.