Water evaporation heat dissipation clothing
The water evaporation heat dissipation suit addresses low efficiency and maintainability issues by integrating a sealed cavity structure with forced ventilation, enhancing evaporation and heat dissipation efficiency for high-intensity work scenarios.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- WEIZHOU GUOFU TECHNOLOGY CO LTD
- Filing Date
- 2026-02-02
- Publication Date
- 2026-06-26
AI Technical Summary
Conventional water evaporation cooling garments suffer from low heat dissipation efficiency, reliance on passive evaporation, and poor maintainability, particularly in high-temperature and high-humidity environments, and lack flexibility in adjusting cooling intensity.
A water evaporation heat dissipation suit with a three-layer structure incorporating a waterproof layer, highly permeable layer, and outer layer, featuring a sealed first cavity for a water-absorbing layer and a second cavity for forced ventilation using an external fan, with openings for easy replacement and maintenance of the absorbent layer.
Enhances moisture evaporation efficiency and heat dissipation rate through forced ventilation, allowing flexible adjustment of cooling intensity and maintaining hygiene, suitable for high-intensity work scenarios.
Smart Images

Figure 0003256361000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of cooling garments, and more specifically, to water evaporation heat dissipation garments.
Background Art
[0002] Currently, commercially available water evaporation cooling garments mainly achieve body surface cooling based on the principles of capillary water absorption and natural evaporation of the material itself. Their structure usually consists of a hydrophilic fiber layer and a water storage layer combined. Moisture gradually penetrates the surface of the fabric by human sweat or water injected from the outside, and passive evaporation and heat dissipation are realized by the flow of ambient air. However, such conventional devices have the following significant technical drawbacks.
[0003] First, the cooling method is single and always relies on blowing by a fan without the assistance of a forced air flow. Therefore, its heat dissipation efficiency greatly depends on the surrounding temperature and humidity conditions. In a high-temperature and high-humidity environment, the evaporation rate is extremely low, the cooling effect becomes weak, and ultimately ineffective, making it difficult to meet the actual needs of high-intensity work scenarios such as firefighters, construction workers, and outdoor rescue team members. Second, conventional products often use an integrally formed fixed water storage structure and cannot replace the water absorption material. Therefore, after use, the water absorption capacity decreases, bacteria multiply, the odor becomes extremely bad, the service life is short, the hygiene condition is poor, and the cooling intensity cannot be flexibly adjusted according to the usage time.
[0004] From the above, conventional water evaporation heat dissipation garments generally have multiple technical bottlenecks such as low heat dissipation efficiency, single function, and low maintainability, and there is an urgent need for a new heat dissipation garment solution that can achieve efficient and active evaporation cooling and can replace the water absorption components.
Summary of the Invention
Problems to be Solved by the Invention
[0005] In order to solve the technical problems existing in conventional water evaporation heat dissipation garments, such as low heat dissipation efficiency and low maintainability, the present invention provides a water evaporation heat dissipation garment. [Means for solving the problem]
[0006] To achieve the above objective, the technical means of this invention are implemented as follows.
[0007] The water evaporation heat dissipation suit includes a heat dissipation suit body, which is provided with a waterproof layer, a highly permeable layer, and an outer layer in order from the inside out. A sealed first cavity is formed between the waterproof layer and the highly permeable layer by sealing all four sides. A water-absorbing layer is provided inside the first cavity. A second cavity is formed between the outer layer and the highly permeable layer by sealing all four sides. The water evaporation heat dissipation suit is provided with an opening for introducing the water-absorbing layer into the first cavity, and is provided with at least one fan for blowing air into the second cavity from the outside. The second cavity has at least one outlet. The fan blows air into the cavity via the outer layer, and by activating the fan, the water-absorbing layer accelerates the evaporation of moisture precipitated from the surface of the highly permeable layer.
[0008] By incorporating a double-sealed cavity structure within the heat dissipation suit body, the first cavity houses a water-absorbing layer, allowing water to be gradually released from the highly permeable layer. The second cavity is combined with an external fan for forced ventilation, significantly improving moisture evaporation efficiency and heat dissipation rate. Furthermore, the design of the opening and closing ports facilitates the replacement and maintenance of the water-absorbing layer, eliminating the technical shortcomings of conventional water-evaporation heat dissipation suits, such as low heat dissipation efficiency and difficulty in maintenance.
[0009] The core principle is to achieve rapid heat transfer from the human body and maintain thermal equilibrium through heat absorption caused by the phase change of liquid water and enhanced air convection. A three-layer structure of "moisture absorption-evaporation-moisture transfer" is formed. A fan mounting position is fitted into the back to ensure smooth airflow.
[0010] This heat-dissipating suit maintains a lightweight design while effectively controlling the core temperature of the human body by precisely controlling the combined action of moisture evaporation and forced ventilation. It is particularly applicable to high-temperature, high-load scenarios such as metallurgy, firefighting, and outdoor exploration, providing an innovative solution for thermal protection of the human body in extreme environments.
[0011] Furthermore, the outlet is provided in the outer layer and located in the downstream region of the airflow of the second cavity.
[0012] Furthermore, the absorbent layer and the highly permeable layer are connected by buckles, zippers, or Velcro (registered trademark).
[0013] Furthermore, the absorbent layer is an absorbent sheet or absorbent core made of absorbent cotton or a superabsorbent polymer material. The absorbent layer can be inserted or removed and is secured to the container by a fastener, buckle or Velcro®.
[0014] In one embodiment, openings are formed at corresponding positions in the highly permeable layer and the outer layer, respectively, forming a passage-type opening that penetrates the two layers, making it easy to directly operate the installation and replacement of the water-absorbing layer from the outside.
[0015] In one embodiment, the opening is formed in the waterproof layer so that the water-absorbing layer can be independently inserted into or replaced by the opening, and a sealing structure is provided on the edge of the opening to maintain the airtightness of the sealed first cavity.
[0016] Furthermore, the fan includes a fan body and a retaining ring. The outer layer has a through hole formed for the fan body to pass through, and the retaining ring is provided on the inside of the outer layer and is fixedly connected to the fan body, thereby ensuring stable mounting and an airtight seal of the fan.
[0017] Furthermore, the fan body includes a cage-shaped lower cover, a motor and fan blades housed inside the lower cover, and an upper cover attached to the top of the lower cover. The retaining ring and the lower cover are detachably connected by a screw mechanism to facilitate easy attachment, removal, and maintenance of the fan module.
[0018] Furthermore, it further includes a controller. One end of the controller is electrically connected to the fan through a conducting wire, and a power supply connector adapted to be powered by an external power bank is connected to the other end. The controller controls the startup, stop, and rotation speed adjustment of the fan. In actual applications, the endurance distance can be extended by an external mobile power source, and self-adaptive adjustment of heat dissipation countermeasures can be realized in cooperation with a smart wearable system.
[0019] Furthermore, the front part and the back middle part of the heat dissipation clothing body are removably connected by buttons for easy attachment and detachment.
Advantages of the Invention
[0020] The beneficial effects of the implementation of the present invention are as follows.
[0021] The present invention provides a double-sealed cavity structure inside the heat dissipation clothing body. An absorbent layer is accommodated in the first cavity, and water is gradually released from the high-permeability layer. An external fan is combined with the second cavity for forced ventilation, significantly improving the moisture evaporation efficiency and heat dissipation rate. Also, the design of the opening makes the replacement and maintenance of the absorbent layer easy, eliminating the technical drawbacks of the conventional water evaporation heat dissipation clothing, such as low heat dissipation efficiency and difficulty in maintenance, and achieving an efficient, sustainable, and reusable active body surface cooling effect.
Brief Description of the Drawings
[0022] [Figure 1] It is a structural diagram of the water evaporation heat dissipation clothing according to the present invention in the rear view direction. [Figure 2] It is a structural diagram of the water evaporation heat dissipation clothing according to the present invention in the direction viewed from the left. [Figure 3] It is a layer structural diagram of the first embodiment of the water evaporation heat dissipation clothing according to the present invention. [Figure 4] It is a layer structural diagram of the second embodiment of the water evaporation heat dissipation clothing according to the present invention. [Figure 5] It is a connection circuit diagram of the fan, controller, and power bank according to the present invention. [Figure 6]It is a structural diagram of the fan according to the present invention.
Embodiments for Carrying out the Invention
[0023] In order to make the object, technical means and advantages of the present invention clearer, the present invention will be described in more detail below with reference to the drawings and embodiments. Note that the specific embodiments described in this specification are only for interpreting the present invention and do not limit the present invention.
[0024] As shown in FIGS. 1 to 4, the present invention provides a water evaporation heat dissipation clothing, which realizes efficient body surface temperature reduction through the synergistic effect of active air cooling and evaporation heat absorption, and is applicable to scenes such as high-temperature work, outdoor sports, fire fighting and rescue.
[0025] The water evaporation heat dissipation clothing includes a heat dissipation clothing body 100. On the heat dissipation clothing body 100, a waterproof layer 103, a highly permeable layer 102 and an outer layer 101 are provided in a composite manner in order from the inside to the outside. The adjacent layer structures form a stable composite structure by means of hot pressing, sewing or adhesion.
[0026] A first cavity sealed by sealing the four sides between the waterproof layer 103 and the highly permeable layer 102 is formed, and a water absorption layer 109 is provided in the first cavity. A second cavity is formed by sealing the four sides between the outer layer 101 and the highly permeable layer 10,2. In order to facilitate the installation, replacement and maintenance of the water absorption layer 109, the water evaporation heat dissipation clothing is provided with an opening and closing port 112 for putting the water absorption layer into the first cavity, and at least one fan for blowing air from the outside into the second cavity is provided, and there is at least one air outlet 111 in the second cavity. The fan blows air into the cavity through the outer layer 101, and the fan is activated to accelerate the evaporation of the moisture deposited on the surface of the highly permeable layer 102 by the water absorption layer.
[0027] The front part and the back middle part of the heat dissipation clothing body 100 are detachably connected by quick-release buttons 105 to facilitate wearing and removal, and the buttons 105 may be snap buttons, nylon surface fasteners or magnetic buttons.
[0028] In one preferred embodiment, a fastener structure or hook-and-loop fastener is provided on the edge of the opening 112 so that after opening, the water-absorbing layer 109 can be directly placed into or removed from the water storage cavity, and after closing, airtightness is ensured and liquid leakage is prevented.
[0029] Furthermore, the air outlet 111 is provided in the outer layer 101, preferably in the upper part of the outer layer 101.
[0030] Furthermore, the water-absorbing layer 109 and the highly water-permeable layer 102 are connected by a buckle, fastener, or Velcro (registered trademark). This prevents displacement during wear or exercise.
[0031] Furthermore, the absorbent layer 109 is made of absorbent cotton or a superabsorbent polymer material. The absorbent layer 109 can be inserted or removed and is secured to the container by a fastener, buckle or Velcro®.
[0032] In one embodiment, the openings 112 are formed at corresponding positions on the highly permeable layer 102 and the outer layer 101, respectively.
[0033] In one embodiment, the opening / closing port 112 is formed in the waterproof layer 103.
[0034] As shown in Figures 3 and 4, in two preferred embodiments of the present invention, two or three fans 200 are arranged in each case, working together to blow air from multiple locations, achieving the functional need to equalize the airflow distribution and adjust the heat dissipation intensity. The fan 200 includes a fan body 20 and a retaining ring 204, and a circular through-hole is formed in the outer layer 101 that fits the outer shape of the fan body 20, so that the fan body 20 penetrates from the outside of the outer layer 101 and is partially fitted into the second cavity.
[0035] As shown in Figure 5, the present invention further includes a controller 300 that controls the starting and stopping of the fans and their rotation speed. One end of the controller 300 is electrically connected to the power supply terminal of each fan 200 via a flexible waterproof wire, enabling independent or synchronous control of the fan's operating state. The other end is provided with a standardized USB power supply connector that can be reliably connected via a general-purpose USB data cable to an external portable power bank 400 that provides a 5V DC power supply. This meets the need for continuous operation over long periods and supports intermittent operation using an external power supply, eliminating the need for a built-in battery, effectively reducing the weight of the garment, and improving ease of use.
[0036] As shown in Figure 6, the fan 200 includes a cage-shaped lower cover 203, in which the fan blades 202 and motor are housed. An upper cover 201 is attached to the lower cover 203, and a female thread is provided on the inside of the fixing ring 204. A corresponding male thread is machined on the outer edge of the lower cover 203, and the two are connected by a screw-type mechanism, enabling a removable mechanical connection that facilitates the quick attachment and detachment of the fan module during maintenance.
[0037] After the fan 200 is activated, the airflow flows along the air-cooled cavity, passes through the microporous structure of the highly permeable layer 102, and accelerates the surface evaporation process of the water-absorbing layer 109, thereby removing a large amount of heat from the body surface and achieving a dual heat dissipation effect of passive evaporation and active air cooling.
[0038] The operating principle is as follows:
[0039] Cooling mechanism of water evaporation phase change.
[0040] Regarding the heat absorption process, liquid water undergoes a phase change (liquid → gas) at the surface of the evaporation material, and 1 gram of water absorbs approximately 2400 J of heat (latent heat of vaporization at 37°C) through evaporation.
[0041] Regarding the heat transfer pathway, the heat generated by the body's metabolism (approximately 100-300W) heats the water in the evaporation layer through conduction. After the water vaporizes, it carries the heat and diffuses into the environment through the gaps in clothing, while also lowering the skin surface temperature (it can cool down to 3-8°C).
[0042] Enhanced forced ventilation effect from the fan.
[0043] To enhance convective heat exchange, the fan is driven to allow air to pass through the evaporation layer at a flow rate of 0.5 to 2 m / s. The Newtonian cooling method increases the convective heat exchange coefficient by 3 to 5 times, significantly accelerating the rate of water vaporization.
[0044] Regarding boundary layer disruption, the still air layer formed on the skin surface (approximately 1-3 mm thick) is the main resistance to evaporation. Forced ventilation can reduce the thickness of the boundary layer, increasing the moisture diffusion coefficient by 40-60%.
[0045] Regarding the superimposition of perceived temperature reduction, circulating air directly removes heat from the skin's surface, creating an air-cooling effect, which is particularly pronounced in high-temperature, low-humidity environments.
[0046] The beneficial effects of implementing the water evaporation heat dissipation suit according to this invention are as follows:
[0047] This invention provides a double-sealed cavity structure within the body of the heat-dissipating suit. The first cavity houses a water-absorbing layer, from which water is gradually released through a highly permeable layer. The second cavity is combined with an external fan for forced ventilation, significantly improving moisture evaporation efficiency and heat dissipation rate. Furthermore, the design of the opening and closing ports facilitates the replacement and maintenance of the water-absorbing layer. This overcomes the technical shortcomings of conventional water-evaporation heat-dissipating suits, such as low heat dissipation efficiency and difficulty in maintenance, achieving an efficient, sustainable, and reusable active body surface cooling effect.
[0048] The foregoing describes only preferred embodiments of the present invention and does not limit it. All modifications, equivalent substitutions, and improvements made within the concept and principles of the present invention should be included within the scope of protection of the present invention. [Explanation of symbols]
[0049] 100 Heat dissipation suit main body 200 fans 300 controllers 400 Power Bank 101 Outer layer 102 High permeability layer 103 Waterproof layer 105 buttons 109 Water absorption layer 111 Air outlet 112 Opening / Closing 113 Male buckle 114 Female buckle 20 Fan Body 201 Top lid 202 Fanblade 203 Lower lid 204 Fixing ring
Claims
1. The heat dissipation suit body (100) is provided with a waterproof layer (103), a highly permeable layer (102), and an outer layer (101) in order from the inside out, and a sealed first cavity is formed between the waterproof layer (103) and the highly permeable layer (102) by sealing all four sides, and a water-absorbing layer (109) is removably housed in the first cavity, and a second cavity is formed between the outer layer (101) and the highly permeable layer (102) by sealing all four sides, and the heat dissipation suit body (100) A water evaporation heat dissipation suit characterized in that the first cavity has an opening (112) for inserting or removing a water-absorbing layer (109) into or out of the first cavity, the heat dissipation suit body (100) is further provided with at least one fan (200) configured to send outside air into the second cavity in order to accelerate the evaporation of moisture from the surface of the highly permeable layer (102), and the second cavity is provided with at least one outlet (111) for discharging the air after evaporative cooling.
2. The water evaporation heat dissipation suit according to claim 1, characterized in that the outlet (111) is provided in the outer layer (101) and is located in the downstream region of the airflow of the second cavity.
3. The water-absorbing layer (109) is detachably fixed to the inner surface of the highly permeable layer (102) by a buckle, fastener or Velcro® to maintain its stable position within the sealed first cavity, as described in claim 1.
4. The water-evaporative heat dissipation garment according to claim 1, characterized in that the water-absorbing layer (109) is a water-absorbing sheet or water-absorbing core having absorbent cotton or a water-absorbing polymer material.
5. The water evaporation heat dissipation garment according to claim 1, characterized in that the openings (112) are formed in the highly permeable layer (102) and the outer layer (101), respectively, and their positions correspond to each other.
6. The water evaporation heat dissipation garment according to claim 1, characterized in that the opening (112) is formed in the waterproof layer (103).
7. The water evaporation heat dissipation suit according to claim 1, characterized in that the fan (200) includes a fan body (20) and a fixing ring (204), the outer layer (101) has a through hole formed therein for the fan body (20) to pass through, and the fixing ring (204) is provided on the inside of the outer layer (101) and is fixedly connected to the fan body (20).
8. The water evaporation heat dissipation suit according to claim 1, wherein the fan body (20) includes a cage-shaped lower cover (203), a motor and fan blades (202) provided inside the lower cover (203), and an upper cover (201) attached to the top of the lower cover (203), and the fixing ring (204) and the lower cover (203) are detachably connected by a screw structure to enable easy attachment and detachment and maintenance of the fan module.
9. The water evaporation heat dissipation suit according to claim 1, further comprising a controller (300), the controller (300) having one end electrically connected to the fan (200) via a wire and the other end connected to a power supply connector suitable for power supply by an external power bank (400), and controlling the starting and stopping of the fan and adjusting the rotation speed.
10. The water evaporation heat dissipation garment according to claim 1, characterized in that the front and back portions of the heat dissipation garment body (100) are detachably connected by buttons (105).