A smart air-conditioning suit based on the Peltier effect of thermoelectric materials

Abstract

A smart air-conditioning garment based on the Peltier effect of thermoelectric materials belongs to the field of functional clothing technology and solves the technical problems of poor portability, unclear cooling effect, and poor user experience of air-conditioning garments in the prior art. The smart air-conditioning garment includes a garment body, a cold air guide channel, and a refrigeration module. The refrigeration module is arranged on the back of the garment body. The lower part of the back side of the garment body is respectively provided with a main air inlet and a main air outlet. The air outlet of the refrigeration module is connected to the air inlet of the cold air guide channel. The cold air released by the cold air guide channel is discharged to the outside of the garment body through the cuffs, collar or main air outlet of the garment body after heat exchange. The refrigeration module includes a housing, a fan, a refrigeration semiconductor module, and a liquid atomization module. The liquid atomization module includes a hollow crossbeam, a return groove, a water storage tank, and a water drawing pipe. Under the refrigeration effect of the thermoelectric material, the present invention realizes effective cooling of the airflow, and at the same time, the airflow cooperates with the water mist to achieve a good cooling effect.

Description

Technical Field

[0001] The present invention belongs to the technical field of functional clothing, and specifically relates to an intelligent air-conditioning clothing based on the Peltier effect of thermoelectric materials. Background Art

[0002] As society develops, the demand for small-scale, portable cooling technology is increasing in both work and life. For example, construction workers must work for extended periods in high-temperature environments, medical personnel face prolonged periods of inadequate heat dissipation from protective clothing, and firefighters often face scorching temperatures during firefighting operations. When heat dissipation is inhibited, these workers experience varying degrees of heat stress, potentially impacting their work and even creating varying degrees of danger.

[0003] In recent years, air-conditioning clothing has gradually come into people's attention. For example, the patent "A Kind of Air-conditioning Clothing" (Announcement No.: CN213992510U) mainly promotes air circulation in a small space through a fan. The refrigeration module of this air-conditioning clothing still has disadvantages such as large size, uneven heat dissipation, unclear cooling effect, and safety hazards. Its scope of use has certain limitations. In addition, there is still much room for improvement in its portability, energy saving, comfort and appearance. Summary of the Invention

[0004] The present invention aims to overcome the shortcomings of the prior art and solve the technical problems of poor portability, weak cooling effect, and poor user experience of air-conditioning clothing in the prior art. It provides an intelligent air-conditioning clothing based on the Peltier effect of thermoelectric materials. It combines the Peltier effect of semiconductors with water mist cooling and applies it to the cooling of air-conditioning clothing, achieving high efficiency and stability in cooling in a small space. The present invention achieves this through the following technical solutions:

[0005] An intelligent air-conditioning garment based on the Peltier effect of thermoelectric materials includes a garment body, a cold air guide channel, and a refrigeration module. The garment body is made of polyester with good thermal insulation performance and is provided with a thermal insulation coating. The refrigeration module is provided on the back of the garment body. Interconnected cold air guide channels are provided at the front, back, armpits, and sleeves of the garment body. Several temperature sensors are distributed in the garment body as needed, including:

[0006] A main air inlet and a main air outlet are respectively provided at the lower part of the back side of the garment body, the main air inlet is provided on both sides of the main air outlet, the main air inlet is connected with the air inlet of the refrigeration module through a pipe, the air outlet of the refrigeration module is connected with the air inlet of the cold air guide channel, and the cold air released by the cold air guide channel is discharged to the outside of the garment body through the cuffs, collar or main air outlet of the garment body after heat exchange;

[0007] The refrigeration module includes a shell, a fan, a refrigeration semiconductor module and a liquid atomization module. The shell is arranged on the back side of the clothing body, the fan is arranged on the side wall of the back side of the shell, the liquid atomization module is arranged in the shell, and the refrigeration semiconductor module is arranged at the end surface position of the front side of the shell. The refrigeration semiconductor module includes a square-shaped frame, and an exhaust screen is arranged on the end surface of the frame.

[0008] The liquid atomization module includes a hollow beam, a reflux groove, a water storage tank and a water drawing pipe. A hollow beam is arranged across the top surface of the shell, and a number of oblique cuts are distributed on the side wall of the lower part of the hollow beam. Through simulation analysis of the number of cuts and the change of the tilt angle, it is found that the adjustment of the number of oblique cuts and the tilt angle can produce a siphon effect, thereby affecting the water drawing capacity of the water drawing pipe; a reflux groove is arranged at the bottom of the shell below the refrigeration semiconductor module, and the condensed water on the exhaust screen is collected in the reflux groove. A water storage tank is arranged below the reflux groove. A through groove connected to the water storage tank is provided on the bottom surface of the reflux groove; the hollow beam and the water storage tank are connected through a water suction pipe, and a water suction cotton core is provided in the water suction pipe. The water suction cotton core utilizes capillary action and cooperates with the siphon effect under the action of airflow to increase the condensed water in the water storage tank to flow back into the hollow beam through the water suction pipe. A water mist mesh surface is provided between the bottom of the hollow beam and the reflux groove, and the fan blows the water attached to the water mist mesh surface to the refrigeration semiconductor module in the form of water mist, and the refrigeration semiconductor module cools the water mist and blows it into the cold air guide channel.

[0009] Furthermore, the signal output end of the temperature sensor is electrically connected to the signal input end of the PLC controller through a signal line, and the signal output end of the PLC controller is electrically connected to the refrigeration semiconductor module and the fan respectively. The refrigeration semiconductor module and the fan serve as controlled elements of the PLC controller, and the refrigeration effect of the refrigeration semiconductor module and the speed of the fan are respectively adjusted as needed.

[0010] Furthermore, the electrical components are interconnected and coordinated, and the refrigeration module and the fan are independently controlled or work in coordination. Under the coordinated working conditions, the fan operates first to promote water circulation inside the air-conditioning suit and better realize the atomization mesh surface. Then the refrigeration module operates, realizing a control method that is asynchronous at the same level. Furthermore, in order to make the refrigeration semiconductor module achieve the maximum theoretical efficiency as much as possible, it is necessary to optimize the device structure. The refrigeration semiconductor module includes electrodes, an electrically insulating substrate and a thermoelectric material layer. The electrodes, the electrically insulating substrate and the thermoelectric material layer are all arranged in a frame structure. The electrically insulating substrate is arranged at the end faces of both sides of the refrigeration semiconductor module. Electrodes are respectively arranged on the inner side surfaces of the two electrically insulating substrates. The thermoelectric material layer is connected in series with the electrodes in a sandwich structure by soldering technology or hot pressing sintering.

[0011] Furthermore, the material of the electrode is Cu, Ni or Fe; the material of the electrically insulating substrate is an alumina ceramic sheet; the thermoelectric material layer includes a p-type thermoelectric material layer and an n-type thermoelectric material layer, and the p-type thermoelectric material layer and the n-type thermoelectric material layer are arranged at intervals; the material of the p-type thermoelectric material layer is Bi 0.5 Sb 1.5 Te3, the material of the n-type thermoelectric material layer is Mg 3.2 Bi 1.498 Sb 0.5 Te 0.002 .

[0012] Furthermore, the number of the oblique cuts is 6 to 10, and the clockwise angle between the oblique cuts and the airflow is 0 to 30 degrees. Due to the action of the airflow, a pressure difference is formed at the oblique cuts, thereby achieving siphoning. The present invention mainly relies on the siphon effect. The capillary effect generated by the water-absorbing cotton core is used to cooperate to improve the ability of water to move from low to high. In addition, the siphon effect can promote a more uniform distribution of water in the hollow beam, ensuring that the water mist net is filled.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention adjusts the airflow distribution inside the air-conditioning suit: air is directed through a guide duct connected to the main air outlet (the duct at the primary outlet is made of soft tarpaulin), achieving directional drainage according to cooling needs. A distributed fine air duct network is installed behind the guide duct (the secondary air duct network is made of medium-permeability fabric). A patch structure is installed on one side of the air duct network to adjust the position of the air duct network, achieving free control of airflow distribution.

[0015] 2. This invention utilizes a device based on the Peltier effect of thermoelectric semiconductors as a specialized cooling source, offering unique advantages such as small size, no noise, no emissions, and high stability. Therefore, this invention utilizes thermoelectric coolers as the cooling source for air-conditioned clothing. These devices offer significant advantages in terms of cost, efficiency, comfort, and portability. Combining these devices with clothing, achieving structural integration, and intelligent control, they represent a new type of intelligent air-conditioned clothing.

[0016] 3. Since the present invention directly controls the semiconductor, it can greatly reduce the dependence on other moving parts. Secondly, the liquid atomization module is introduced into the refrigeration module, and the siphon effect is used to replace the function of the traditional water pump, so that the liquid flows from low to high, realizing liquid atomization refrigeration;

[0017] 4. The human air-conditioning suit adopts a modular and intelligent structure to form an automatic control system, which can adjust the temperature requirements according to different situations and has a wider range of uses.

[0018] In summary, the present invention improves the air circulation effect through the design of the internal ventilation structure, and achieves the purpose of effective refrigeration by matching it with a dedicated refrigeration module. The refrigeration module in the present invention adopts a three-in-one design of refrigeration, water mist, and airflow. By taking the refrigeration effect achieved by the Peltier effect of the thermoelectric material as the basis, and combining it with the water mist mesh surface achieved by the inner siphon effect, the airflow forms water mist. Under the refrigeration effect of the thermoelectric material, the effective refrigeration purpose of the airflow is achieved. At the same time, the airflow and water mist cooperate to achieve a better refrigeration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the main perspective structural intention of the present invention;

[0020] Figure 2 This is the rear perspective structural intention of the present invention;

[0021] Figure 3 This is the rear view structural intention of the present invention;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the refrigeration module from the side;

[0023] Figure 5 This is a schematic diagram of the main structure of the refrigeration semiconductor module;

[0024] Figure 6 It is a schematic diagram of the airflow circulation process of the present invention.

[0025] In the figure, 1 is the clothing body, 2 is the cold air guide channel, 3 is the main air inlet, 4 is the main air outlet, 5 is the temperature sensor, 6 is the refrigeration module, 7 is the refrigeration semiconductor module, 8 is the exhaust screen, 9 is the return trough, 10 is the water storage tank, 11 is the water suction pipe, 12 is the hollow beam, 13 is the shell, 14 is the water mist mesh, and 15 is the fan. DETAILED DESCRIPTION

[0026] The present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0027] like Figures 1 to 6 The figure shows an intelligent air-conditioning garment based on the Peltier effect of thermoelectric materials. It includes a garment body 1, a cold air guide channel 2, and a refrigeration module 6. The refrigeration module 6 is arranged on the back of the garment body 1. Interconnected cold air guide channels 2 are arranged at the front, back, armpits, and sleeves of the garment body 1. Several temperature sensors 5 are distributed in the garment body 1 as needed, wherein:

[0028] The lower part of the back side of the clothing body 1 is respectively provided with a main air inlet 3 and a main air outlet 4, the main air inlet 3 is provided on both sides of the main air outlet 4, the main air inlet 3 is connected with the air inlet of the refrigeration module 6 through a pipe, and the air outlet of the refrigeration module 6 is connected with the air inlet of the cold air guide channel 2. The cold air released by the cold air guide channel 2 is discharged to the outside of the clothing body 1 through the cuffs, collar or main air outlet 4 of the clothing body 1 after heat exchange;

[0029] The refrigeration module 6 includes a housing 13, a fan 15, a refrigeration semiconductor module 7 and a liquid atomization module. The housing 13 is arranged on the back side of the clothing body 1, the fan 15 is arranged on the side wall of the back side of the housing 13, the liquid atomization module is arranged in the housing 13, and the refrigeration semiconductor module 7 is arranged at the end surface position of the front side of the housing 13. The refrigeration semiconductor module 7 includes a square-shaped frame, and an exhaust screen 8 is arranged on the end surface of the frame.

[0030] The liquid atomization module includes a hollow crossbeam 12, a reflux groove 9, a water storage tank 10 and a water drawing pipe 11. The hollow crossbeam 12 is arranged across the top surface of the shell 13. A plurality of oblique cuts are distributed on the side wall of the lower part of the hollow crossbeam 12. The number of oblique cuts is 6 to 10, and the clockwise angle between the oblique cuts and the air flow is 0 to 30 degrees. The bottom of the shell 13 is located below the refrigeration semiconductor module 7. The condensed water on the exhaust screen 8 is collected in the reflux groove 9. The water storage tank 10 is arranged below the reflux groove 9. A through groove connected to the water storage tank 10 is provided on the bottom surface of the reflux groove 9; the hollow beam 12 is connected to the water storage tank 10 through a water drawing pipe 11, and a water drawing cotton core is provided in the water drawing pipe 11. The condensed water in the water storage tank 10 flows back to the hollow beam 12 through the water drawing pipe 11, and a water mist mesh surface 14 is provided between the bottom of the hollow beam 12 and the reflux groove 9. The fan 15 blows the water attached to the water mist mesh surface 14 to the refrigeration semiconductor module 7 in the form of water mist. The refrigeration semiconductor module 7 cools the water mist and blows it into the cold air guide channel 2.

[0031] In order to achieve better cooling effect, the exhaust screen 8 is used as the air outlet of the refrigeration module 6. The design of the air outlet is coordinated with the reflux groove 9, the water storage tank 10 and the water mist mesh 14 structure, so that a better cooling effect can be achieved under collaborative working conditions.

[0032] Furthermore, the signal output end of the temperature sensor 5 is electrically connected to the signal input end of the PLC controller through a signal line, and the signal output end of the PLC controller is electrically connected to the refrigeration semiconductor module 7 and the fan 15 respectively. The refrigeration semiconductor module 7 and the fan 15 serve as controlled elements of the PLC controller, and adopt a same-level asynchronous control method to adjust the cooling effect of the refrigeration semiconductor module 7 and the speed of the fan 15 respectively as needed.

[0033] The single-chip microcomputer is selected as the control module to realize the collection, processing and feedback control of information. The setting of information collection points in the intelligent control module monitors temperature changes through the distribution of multiple temperature sensors, tests the temperature changes in different parts, and controls the temperature through data collection and processing.

[0034] A negative feedback regulation process is added to the control, that is, the working state of the motor and semiconductor is automatically adjusted according to the change of temperature to maintain the temperature stability in the space.

[0035] Furthermore, the refrigeration module and the fan are controlled independently or work in coordination; under the coordinated working condition, the fan operates first and then the refrigeration module operates.

[0036] Furthermore, the refrigeration semiconductor module includes an electrode, an electrical insulating substrate and a thermoelectric material layer, wherein the electrode is made of Cu, Ni or Fe, the electrical insulating substrate is made of an alumina ceramic sheet, and the thermoelectric material layer includes a p-type thermoelectric material layer and an n-type thermoelectric material layer, and the p-type thermoelectric material layer and the n-type thermoelectric material layer are arranged at intervals; the material of the p-type thermoelectric material layer is Bi 0.5 Sb 1.5 Te3, the material of the n-type thermoelectric material layer is Mg 3.2 Bi 1.498 Sb 0.5 Te 0.002 The electrodes, electrical insulating substrate and thermoelectric material layer are all arranged in a frame structure. The electrical insulating substrate is arranged at the end surfaces of both sides of the cooling semiconductor module. Electrodes are respectively arranged on the inner side surfaces of the electrical insulating substrates on both sides. The thermoelectric material layer is connected in series with the electrodes in a sandwich structure.

[0037] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An intelligent air-conditioning garment based on the Peltier effect of thermoelectric materials, comprising a garment body (1), a cold air guide channel (2) and a refrigeration module (6), wherein the refrigeration module (6) is arranged on the back of the garment body (1), and interconnected cold air guide channels (2) are arranged at the front, back, armpits and sleeves of the garment body (1), and a plurality of temperature sensors (5) are distributed in the garment body (1) as needed, characterized in that: The lower part of the back side of the clothing body (1) is provided with a main air inlet (3) and a main air outlet (4), the main air inlet (3) is provided on both sides of the main air outlet (4), the main air inlet (3) is connected to the air inlet of the refrigeration module (6) through a pipe, the air outlet of the refrigeration module (6) is connected to the air inlet of the cold air guide channel (2), and the cold air released by the cold air guide channel (2) is discharged to the outside of the clothing body (1) through the cuffs, collar or main air outlet (4) of the clothing body (1) after heat exchange; The refrigeration module (6) includes a housing (13), a fan (15), a refrigeration semiconductor module (7) and a liquid atomization module. The housing (13) is arranged on the back side of the clothing body (1), the fan (15) is arranged on the side wall of the back side of the housing (13), the liquid atomization module is arranged in the housing (13), and the refrigeration semiconductor module (7) is arranged at the end surface position of the front side of the housing (13). The refrigeration semiconductor module (7) includes a square-shaped frame, and an exhaust screen (8) is arranged on the end surface of the frame. The refrigeration semiconductor module includes electrodes, an electrically insulating substrate and a thermoelectric material layer, which are all arranged in a frame structure. The electrically insulating substrate is arranged at the end faces of both sides of the refrigeration semiconductor module, and electrodes are respectively arranged on the inner side faces of the electrically insulating substrates on both sides. The thermoelectric material layer is connected in series with the electrodes in a sandwich structure; the material of the electrodes is Cu, Ni or Fe; the material of the electrically insulating substrate is an alumina ceramic sheet; the thermoelectric material layer includes a p-type thermoelectric material layer and an n-type thermoelectric material layer, and the p-type thermoelectric material layer and the n-type thermoelectric material layer are arranged at intervals; the material of the p-type thermoelectric material layer is Bi 0.5 Sb 1.5 Te3, the material of the n-type thermoelectric material layer is Mg 3.2 Bi 1.498 Sb 0.5 Te 0.002 ; The liquid atomization module includes a hollow crossbeam (12), a reflux trough (9), a water storage tank (10) and a water drawing pipe (11). The hollow crossbeam (12) is arranged across the top surface of the shell (13). A plurality of oblique cuts are distributed on the side wall of the lower portion of the hollow crossbeam (12). The bottom of the shell (13) is located below the refrigeration semiconductor module (7). The condensed water on the exhaust screen (8) is collected in the reflux trough (9). The water storage tank (10) is arranged below the reflux trough (9). A water storage tank (10) is arranged on the bottom surface of the reflux trough (9) and a water storage tank (10) is arranged on the bottom surface of the reflux trough (9). The hollow crossbeam (12) is connected to the water storage tank (10) through a water drawing pipe (11), a water drawing cotton core is provided in the water drawing pipe (11), and the condensed water in the water storage tank (10) flows back to the hollow crossbeam (12) through the water drawing pipe (11), and a water mist mesh surface (14) is provided between the bottom of the hollow crossbeam (12) and the return groove (9), and the fan (15) blows the water attached to the water mist mesh surface (14) toward the refrigeration semiconductor module (7) in the form of water mist, and the refrigeration semiconductor module (7) cools the water mist and blows it into the cold air guide channel (2).

2. The intelligent air-conditioning clothing based on the Peltier effect of thermoelectric materials according to claim 1, characterized in that: The signal output end of the temperature sensor (5) is electrically connected to the signal input end of the PLC controller via a signal line, and the signal output end of the PLC controller is electrically connected to the refrigeration semiconductor module (7) and the fan (15), respectively. The refrigeration semiconductor module (7) and the fan (15) serve as controlled elements of the PLC controller, and the refrigeration effect of the refrigeration semiconductor module (7) and the speed of the fan (15) are respectively regulated as needed.

3. The intelligent air-conditioning clothing based on the Peltier effect of thermoelectric materials according to claim 1, characterized in that: The refrigeration module and the fan are controlled independently or work in coordination; under the coordinated working condition, the fan operates first, and then the refrigeration module operates.

4. The intelligent air-conditioning clothing based on the Peltier effect of thermoelectric materials according to claim 1, characterized in that: The number of the oblique cuts is 6 to 10, and the clockwise angle between the oblique cuts and the airflow is 0 to 30 degrees.

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