CN111568643B

CN111568643B - Sound insulation earplug with cold compress effect

Info

Publication number: CN111568643B
Application number: CN202010417693.XA
Authority: CN
Inventors: 张常财
Original assignee: Kunhao Electronic Technology Jiangsu Co ltd
Current assignee: Kunhao Electronic Technology Jiangsu Co ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2022-06-10
Anticipated expiration: 2040-05-18
Also published as: CN111568643A

Abstract

The invention discloses a sound insulation earplug with a cold compress effect, which comprises a shell and a fixed layer, wherein a metal rod penetrates through the shell, a heat shrinkage layer is sleeved outside the metal rod, a circular groove matched with the size of the heat shrinkage layer is formed in the shell, one side of the shell close to the fixed layer is glued with a piezoelectric sheet, the piezoelectric sheet is abutted against the heat shrinkage layer, the outer side of the shell is annularly provided with an air cavity, the air cavity is hermetically connected with a buffer layer with the outside, the air cavity is communicated with an air inlet channel, and the air inlet channel is connected with an air cylinder. Has the advantages that: the invention realizes the expansion of the buffer layer by the inflating effect of the air cavity so as to adapt to the calibers of the auditory canals of different people, releases gas by the opening characteristic of heating meshes of the intelligent polymer gel material when the ears are heated, cools the auditory canals and avoids the problem that the auditory canals are damaged due to long-time use.

Description

Sound insulation earplug with cold compress effect

Technical Field

The invention relates to the field of earplugs, in particular to a sound insulation earplug with a cold compress effect.

Background

The sound insulation earplugs (also called noise prevention earplugs, sound insulation earplugs, noise prevention earplugs and sleeping earplugs) are generally made of silica gel or low-pressure foam materials and high-elasticity polyester materials. After being inserted into the auditory canal, the ear canal is closely contacted with the external auditory canal so as to isolate the sound from entering the middle ear and the inner ear (eardrum), thereby achieving the purpose of sound insulation, and further leading people to obtain quiet rest or working and learning environment.

However, in the prior art, the sound insulation earplug is fixed in size, so that the sound insulation earplug cannot be adapted to the auditory canal of each person, the auditory canal is easily damaged or the sound insulation effect is poor, the auditory canal is red, swollen, itchy and heated after being used for a long time, and the inside of the auditory canal becomes moist and secretions increase due to the fact that air is not circulated.

Disclosure of Invention

The invention aims to solve the problems that the ear canal is heated and red and swollen when a plug is used for a long time in the prior art, and the size of the plug cannot be adjusted to meet the requirements of different people, and provides a sound insulation earplug with a cold compress effect.

In order to achieve the purpose, the invention adopts the following technical scheme: a sound insulation earplug with a cold compress effect comprises a shell and a fixed layer, wherein a metal rod penetrates through the shell, a heat shrinkage layer is sleeved outside the metal rod, a circular groove matched with the size of the heat shrinkage layer is formed in the shell, a piezoelectric sheet is glued on one side, close to the fixed layer, of the shell, the piezoelectric sheet abuts against the heat shrinkage layer, an air cavity is annularly formed in the outer side of the shell, the air cavity is hermetically connected with a buffer layer with the outside, the air cavity is communicated with an air inlet channel, and the air inlet channel is connected with an air cylinder;

the inflator consists of a push plate, a cylinder body and an air outlet, the air outlet is hermetically connected with the air inlet channel, one side of the metal rod outside the fixed layer is fixedly connected with a heat dissipation layer, an annular channel is arranged in the shell, the annular channel is communicated with the circular groove, and an air suction port is arranged at the part outside the shell;

the buffer layer is close to the fixed layer one side seted up the gas outlet, gas outlet sealing connection has the air film, the air film adopts intelligent polymer gel material, the air cavity is located with the circular slot and has seted up the backward flow mouth near annular channel one side.

In the sound insulation earplug with the cold compress effect, the metal rod is made of a semiconductor material, the buffer layer is made of a rubber material, and the piezoelectric patches are electrically connected with two ends of the metal rod through the leads.

Compared with the prior art, the invention has the advantages that:

1. according to the buffer layer, the air cavity can be inflated through the air cylinder structure, so that the buffer layer is expanded outwards, the diameter of the shell can be controlled through the air inflow, the buffer layer is adapted to the auditory canals of different people, and the application range is widened;

2. when the earplug is tightly contacted with the ear canal for a long time, the ear canal generates heat due to compression, so that the heat is transferred to the heat-shrinkable layer through the buffer layer and the air cavity, the heat-shrinkable material has the characteristic of shrinking due to heating, the piezoelectric sheet abutting against the tail end of the metal rod is pressed, and the higher the temperature of the ear canal is, the higher the heat-shrinkable degree is, the higher the current generated by the piezoelectric sheet due to compression is;

3. the two ends of the piezoelectric sheet are electrically connected with the two ends of the metal rod through leads, under the action of the Thomson effect, the two ends of the metal rod are respectively connected with the outside and the inside of the auditory canal, so that temperature difference exists between the two ends, when the conductor is electrified, heat release and heat absorption can be respectively carried out on the two ends of the metal rod, one end of the joint of the metal rod and the auditory canal is controlled to be a heat absorption end, and the other end of the metal rod connected with the outside is a heat dissipation end, so that the tail end of the metal rod can absorb heat to the earplug, the temperature of the earplug is reduced, and the cooling effect on the auditory canal is generated;

4. meanwhile, the gas film of the intelligent polymer gel material is opened in a mesh structure at a higher temperature, so that gas can circulate, and at the moment, because the inside of the gas cavity is in an inflation expansion state, after the gas film is opened, the gas flows out through the gas film, so that the diameter of the shell is reduced, the extrusion to the auditory canal is reduced, and the damage to the auditory canal is avoided;

5. and when pyrocondensation material shrink, will open being connected of air cavity and backward flow mouth, when gaseous outflow air film, backward flow mouth department velocity of flow increase makes it have a negative pressure, and the secretion that eardrum department produced will be inhaled among the annular channel, realizes the clearance effect to in the ear, and here simultaneously, backward flow mouth and metal bar intercommunication for the metal bar carries out direct heat transfer with the interior gas of air cavity, and the cooling is lower and the air current temperature that blows out, improves the effect of cold compress.

Drawings

FIG. 1 is a schematic view of a sound-insulating earplug with a cold compress effect according to the present invention;

fig. 2 is an enlarged view of a portion a of a soundproof earplug having a cold compress effect according to the present invention.

In the figure: the device comprises a shell 1, a fixed layer 2, a metal rod 3, a heat shrinkable layer 4, a piezoelectric plate 5, an air cavity 6, a buffer layer 7, an air inlet channel 8, an air cylinder 9, a valve rod 91, a cylinder 92, an air outlet 93, a heat dissipation layer 10, an annular channel 11, an air film 12 and a return opening 13.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

Examples

Referring to fig. 1-2, a sound insulation earplug with a cold compress effect comprises a shell 1 and a fixed layer 2, wherein a metal rod 3 penetrates through the shell 1, a heat shrinkable layer 4 is sleeved outside the metal rod 3, a circular groove matched with the size of the heat shrinkable layer 4 is formed in the shell 1, a piezoelectric sheet 5 is glued on one side of the shell 1 close to the fixed layer 2, the piezoelectric sheet 5 abuts against the heat shrinkable layer 4, an air cavity 6 is annularly formed in the outer side of the shell 1, the air cavity 6 is hermetically connected with a buffer layer 7 with the outside, the air cavity 6 is communicated with an air inlet channel 8, and the air inlet channel 8 is connected with an air cylinder 9;

the gas cylinder 9 is composed of a valve rod 91, a cylinder 92 and a gas outlet 93, gas enters the cylinder 92 from the outside, the gas can be input into the gas cavity 6 under the action of the two one-way valves of the cylinder 92 and the gas outlet 93, the expansion of the housing 1 is realized, thereby the different people's of adaptation ear, gas outlet 93 and 8 sealing connection of inlet channel, one side fixedly connected with heat dissipation layer 10 of metal rod 3 outside fixed layer 2, set up annular channel 11 in shell 1, annular channel 11 and circular slot intercommunication and the part outside shell 1 is equipped with the induction port, the gas outlet has been seted up to one side that buffer layer 7 is close to fixed layer 2, gas outlet sealing connection has gas film 12, gas film 12 adopts intelligent polymer gel material, have the ventilative characteristics of high temperature, gas cavity 6 and circular slot are located and have been seted up backward flow mouth 13 near annular channel 11 one side, backward flow mouth 13 is located and is close to annular channel 11 one side.

The metal rod 3 is made of a semiconductor material, the resistance is low when the metal rod is conductive, the generated electric heating quantity can be ignored, the buffer layer 7 is made of a rubber material, the buffer layer 7 is expanded when the air cavity 6 is inflated, the piezoelectric plate 5 is electrically connected with the two ends of the metal rod 3 through a lead, when the difference exists between the auditory meatus and the external temperature, the thermoelectric phenomenon is generated by electrifying, heat is absorbed at one end of the thermoelectric phenomenon, and heat is released at the other end of the thermoelectric phenomenon.

When the metal ear plug is used, the expansion degree in the air cavity 6 is controlled through the air cylinder 9, so that the metal ear plug is matched with an ear canal with a corresponding size for use, after the metal ear plug is used for a period of time, the ear canal generates heat due to long-time extrusion of the ear canal, at the moment, the heat-shrinkable layer shrinks per se under a heated condition, so that pressure is generated on the piezoelectric sheet 5 at the tail end, the two ends of the metal rod 3 are conducted, the two ends of the metal rod 3 are respectively positioned in the ear and out of the ear, the temperature is different, according to the Thomson effect, the metal rod 3 releases heat at one end of the metal rod and absorbs heat at the other end of the metal rod when conducting the electricity, the temperature of the ear plug is reduced due to heat absorption at one end of the ear canal, and the temperature of the ear canal is reduced;

in this simultaneously, the sealing to backward flow mouth 13 can be relieved to pyrocondensation material's shrink, make backward flow mouth 13 and air cavity 6 intercommunication, and the air film of intelligence polymer gel material self mesh under being heated opens, has ventilative effect, make under the effect of inflation atmospheric pressure in air cavity 6, gas removes to air film 12 direction in the air cavity 6, at this in-process, backward flow mouth department is because the gas flow will produce the negative pressure, make through 11 outside output negative pressures of annular channel, make the secretion in the ear adsorbed, the effect of clearing up the ear has been played, and gas receives the heat transfer effect of 3 endothermic one ends of metal rod when flowing, make the gas temperature who flows the duct reduce, the cold compress effect to the ear canal department has been improved, and the buffer layer diameter reduces, the oppression to the ear has been reduced, protect the ear, avoid the harm.

Although the terms of the housing 1, the fixing layer 2, the metal rod 3, the heat shrinkable layer 4, the piezoelectric sheet 5, the air chamber 6, the buffer layer 7, the air inlet passage 8, the air cylinder 9, the valve rod 91, the cylinder 92, the air outlet 93, the heat dissipation layer 10, the annular passage 11, the air film 12, the return port 13, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. A sound insulation earplug with a cold compress effect comprises a shell (1) and a fixed layer (2), and is characterized in that a metal rod (3) penetrates through the shell (1), a heat-shrinkable layer (4) is sleeved outside the metal rod (3), a circular groove matched with the heat-shrinkable layer (4) in size is formed in the shell (1), a piezoelectric sheet (5) is glued on one side, close to the fixed layer (2), of the shell (1), the piezoelectric sheet (5) abuts against the heat-shrinkable layer (4), an air cavity (6) is annularly formed in the outer side of the shell (1), the air cavity (6) is connected with a buffer layer (7) in a sealing mode, the air cavity (6) is communicated with an air inlet channel (8), and the air inlet channel (8) is connected with an air cylinder (9);

the inflator (9) consists of a valve rod (91), a cylinder body (92) and an air outlet (93), the air outlet (93) is hermetically connected with the air inlet channel (8), one side of the metal rod (3) outside the fixed layer (2) is fixedly connected with a heat dissipation layer (10), an annular channel (11) is arranged in the shell (1), the annular channel (11) is communicated with the circular groove, and an air suction port is arranged at the part outside the shell (1);

the buffer layer (7) is close to one side of the fixed layer (2) and is provided with a gas outlet, the gas outlet is connected with a gas film (12) in a sealing mode, the gas film (12) is made of an intelligent polymer gel material, the gas cavity (6) and the circular groove are located on one side close to the annular channel (11) and are provided with a backflow port (13), and the piezoelectric plate (5) is electrically connected with two ends of the metal rod (3) through a wire.

2. A cold compress acoustically insulating earplug as claimed in claim 1, wherein the metal rod (3) is of a semi-conductive material and the cushioning layer (7) is of a rubber material.