Conduit air supply type refrigeration helmet

Abstract

The semiconductor conduit air supply type refrigeration helmet is characterized by comprising a shell, a temperature control module is arranged on the rear portion of the shell, and the temperature control module comprises a control cabin, a power supply cabin, a ventilation cabin and an air supply cabin; the air supply cabin and the ventilation cabin are separated through a semiconductor chilling plate, a cold air fin is arranged on the side, located on the air supply cabin, of the semiconductor chilling plate, a cooling fin is arranged on the side, located on the ventilation cabin, of the semiconductor chilling plate, the air supply cabin is provided with a vortex fan, and the ventilation cabin is provided with an axial flow fan. An air duct is arranged at an outlet of the air supply cabin and matched with an air supply guide pipe. Air is supplied directionally, so that air supply is uniform and practical; the temperature of each point in the internal space of the helmet is effectively controlled and adjusted, so that a good refrigeration effect meeting the requirements of a user is achieved; the device can be applied to various helmets and is wide in application range; and no condensate water is separated out, so that a wearer feels comfortable.

Description

Technical Field

[0001] This utility model relates to safety helmet technology, and in particular to a duct-type cooling helmet that utilizes the principle of semiconductor cooling and is designed in conjunction with the helmet structure. Background Technology

[0002] Helmets are widely used as essential protective gear in everyday life, such as when riding motorcycles, electric bikes, and bicycles, as well as in workplaces like factories and construction sites. However, in summer or during strenuous physical activity, helmets can hinder heat dissipation from the head. Since the head is a concentrated area for heat dissipation, this can lead to feelings of heat and stuffiness. Consequently, some people are unwilling to wear helmets due to their lack of comfort, thus creating safety hazards.

[0003] To address this issue, designs such as the cooling helmet with patent publication number CN103120434A and another cooling helmet with patent publication number CN105559229A both employ liquid cooling for helmet refrigeration. However, this liquid cooling method for helmets has significant drawbacks, such as the complex process of handling liquid cooling pipes within the confined space of the helmet, the risk of leakage in the liquid cooling pipes, and the excessive condensation that cannot be drained from the surface of the liquid cooling pipes.

[0004] For example, designs such as a helmet with a cooling function (patent publication number CN114190641A) and a cooling helmet (patent publication number CN210043266U) use semiconductor cooling to cool the helmet. However, the application of semiconductor cooling only uses cold-end radiation cooling, resulting in an uneven distribution of cooling effect and uneven heating inside the helmet. At the same time, the cold end of the semiconductor cooling chip is directly placed inside the helmet, which also causes condensation that cannot be drained.

[0005] In addition, there are generally two methods for cooling: radiative heat transfer and convective heat transfer. The cooling methods used in the comparative documents above are all radiative heat transfer. However, for a small space like a helmet, and considering the issue of condensation, the temperature difference needs to be strictly controlled. Therefore, a more reasonable cooling method is needed to complete the cooling function inside the helmet. Summary of the Invention

[0006] The purpose of this invention is to solve the above-mentioned problems and provide a duct-driven air-cooled helmet. It cools fresh air through a semiconductor cooling device and delivers it evenly into the helmet through an air duct, avoiding the condensation caused by the cold end of the cooling device being directly placed inside the helmet. It features high heat exchange efficiency, convenient assembly and operation, and temperature adjustment as needed.

[0007] The above-mentioned technical problems of this utility model are mainly solved by the following technical solution: a duct-driven air-cooled helmet, characterized by including a shell, a temperature control module provided at the rear of the shell, the temperature control module including a control chamber, a power supply chamber, a ventilation chamber and an air supply chamber; the air supply chamber and the ventilation chamber are separated by a semiconductor cooling chip, the semiconductor cooling chip is provided with cold air fins on the side of the air supply chamber and heat dissipation fins on the side of the ventilation chamber, and the air supply chamber is provided with a vortex fan and the ventilation chamber is provided with an axial fan; the air supply chamber outlet is provided with an air duct, and an air supply duct is provided in cooperation with the air duct, the air after heat exchange by the semiconductor cooling chip is evenly delivered into the helmet by the air supply duct.

[0008] In the aforementioned duct-driven cooling helmet, preferably, the air duct at the outlet of the air supply chamber is provided with an air distribution box, and the air supply duct is provided with several branch pipes, which cooperate with the air distribution box.

[0009] In the aforementioned duct-type cooling helmet, preferably, the air supply duct includes a top air supply duct and a side air supply duct, and the air supply duct is provided with an air outlet.

[0010] In the aforementioned duct-driven cooling helmet, preferably, a fresh air inlet is provided at the bottom of the air supply chamber, an air inlet is provided below the ventilation chamber, and a heat dissipation vent is provided at the rear of the ventilation chamber; the cooling fins are arranged vertically in the same direction as the airflow.

[0011] In the aforementioned duct-driven cooling helmet, preferably, the control cabin is equipped with a controller, and several sensors are installed in conjunction with the controller.

[0012] In the aforementioned duct-driven air-cooled helmet, preferably, the sensor has temperature and humidity monitoring and data transmission functions. The sensor includes an in-helmet sensor located inside the helmet, an air-supply sensor located in the air duct, and a cold-end sensor and a hot-end sensor disposed at both ends of the semiconductor cooling chip.

[0013] In the aforementioned duct-driven cooling helmet, preferably, the shape of the air distribution box is sealed to the air duct, and the air distribution box includes an air supply interface connected to the air supply chamber, and a top supply interface and a side supply interface that cooperate with the air supply duct.

[0014] In the aforementioned duct-driven air-cooled helmet, preferably, the shell is provided with a cushioning layer and an inner liner, and the cushioning layer and the inner liner are provided with perforated parts that cooperate with the air outlet.

[0015] This technical solution utilizes semiconductor cooling to deliver air inside the helmet via air ducts. The air ducts are designed according to the special structure of the helmet shell, and multiple air ducts are used to deliver air evenly according to ergonomics. Air outlets are set inside the air ducts to achieve the purpose of uniform air delivery inside the helmet.

[0016] In this design, a vortex fan is used inside the helmet to change the airflow direction. Outdoor air exchanges heat with the cooling fins inside the thermoelectric cooler through the air chamber. The cooled air is then sent into the air duct by the vortex fan and subsequently into the helmet, ensuring a comfortable and clean airflow for the user. On the other side of the thermoelectric cooler, heat from the heat dissipation fins is carried away by an axial fan, ensuring the hot end operates at the required temperature. The hot and cold sides do not interfere with each other, allowing the thermoelectric cooler to achieve optimal heat exchange efficiency.

[0017] To ensure the helmet's cooling effect and the effective operation of the semiconductor cooling system, this device is equipped with multiple sensors. All sensors are equipped with temperature and humidity monitoring and data transmission functions, and all data inputs are routed to the controller. Through the sensor configuration, not only is the cooling effect inside the helmet ensured, but the dew point temperature inside the helmet is also monitored to prevent condensation. Feedback is then sent to the control system to adjust parameters such as the air supply temperature and the cooling power of the semiconductor cooling chip. Simultaneously, the temperature at both ends of the semiconductor cooling chip is monitored to prevent damage caused by overcooling or overheating.

[0018] Compared with the prior art, the beneficial effects of this utility model are: it uses the principle of semiconductor cooling to process the air supply, and supplies air in a directional and positional manner through the air supply duct, so that the air supply is uniform and practical; it effectively controls and adjusts the temperature of each point inside the helmet, so as to achieve a good cooling effect that meets the user's requirements; it can be applied to various types of helmets and has a wide range of applications; there is no condensation phenomenon, so that the wearer feels comfortable. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the cross-sectional structure of a helmet according to the present invention.

[0020] Figure 2 This is a schematic diagram of a refrigeration principle of this utility model.

[0021] Figure 3 This is a schematic diagram of a temperature control module structure according to the present invention.

[0022] Figure 4 This is a schematic diagram of an embodiment of the air supply duct of this utility model.

[0023] Figure 5 This is a schematic diagram of a wind distribution box structure according to the present invention.

[0024] Figure 6 This is a schematic diagram of a configuration liner embodiment of the present invention.

[0025] In the diagram: 1-Shell, 101-Breathing hole, 2-Temperature control module, 201-Semiconductor cooling chip, 202-Controller, 203-Power supply, 204-Vortex fan, 205-Axial fan, 206-Cold end sensor, 207-Hot end sensor, 208-Heat dissipation vent, 209-Air supply sensor, 210-Helmet internal sensor, 211-Control compartment, 212-Power supply compartment, 213-Ventilation compartment, 214-Air supply compartment, 215-Cold air fins, 216-Heat dissipation fins, 217-Fresh air vent, 218-Air inlet, 219-Air duct, 3-Air distribution box, 301-Air supply interface, 302-Top air supply interface, 303-Side air supply interface, 4-Air supply duct, 401-Top air supply duct, 402-Side air supply duct, 403-Air supply vent, 5-Buffer pad, 6-Inner liner. Detailed Implementation

[0026] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0027] This embodiment describes a duct-driven air-supply type cooling helmet, the shape and basic structure of which are as follows. Figure 5 As shown, the helmet includes a full-face helmet shell 1, which is made of materials such as carbon fiber or glass fiber. The helmet has a goggle at the front and a windproof nose guard below the goggle 3. The windproof nose guard has a breathing hole 101. The helmet has a temperature control module 2 at the rear. The temperature control module 2 is the cold and heat source for the helmet's cooling and heating in this embodiment.

[0028] The temperature control module includes a control compartment 211, a power supply compartment 212, a ventilation compartment 213, and an air supply compartment 214, such as Figure 1 , Figure 2 As shown, the air supply compartment 214 and the ventilation compartment 213 are separated by a thermoelectric cooler 201 and stiffening plates arranged inside the temperature control module. The partition material between the air supply compartment 215 and the ventilation compartment 213 is made of heat-insulating material to enhance isolation and prevent heat loss through heat exchange. The thermoelectric cooler 201 has cooling fins 215 on one side of the air supply compartment 214, arranged vertically in the direction of airflow. The thermoelectric cooler 201 has heat dissipation fins 216 on one side of the ventilation compartment 213. The number of thermoelectric coolers 205 can be set according to actual needs, such as one or two.

[0029] The air supply chamber 214 is equipped with a vortex fan 204, and the ventilation chamber 213 is equipped with an axial fan 205. The air supply chamber 214 has a fresh air inlet 217 at the bottom, the ventilation chamber 213 has an air inlet 218 at the bottom, and the ventilation chamber 213 has a heat dissipation vent 208 arranged towards the rear of the helmet.

[0030] The control cabin 211 is equipped with a controller 202, and multiple sensors are installed in conjunction with the controller 202. The sensors have temperature and humidity monitoring and data transmission functions. The sensors include at least a helmet-mounted sensor 210 located inside the helmet, an air supply sensor 209 located in the air duct 219, and a cold end sensor 206 and a hot end sensor 207 located at both ends of the semiconductor cooling chip 201.

[0031] The power supply compartment 212 houses a power supply 203, which uses a rechargeable lithium battery or other types of power. The battery can also be concealed as a whole, with a charging interface provided on the outside for continuous power supply during long-term use. The power supply compartment 212 has a cover on the outside for easy battery replacement. When the battery is concealed as a whole with a charging interface, the cover is not required.

[0032] Therefore, outdoor air enters through the fresh air inlet 217, undergoes thorough heat exchange after passing through the cooling fins 215, and the heat-exchanged air is then delivered to the helmet's air supply duct 4 via the vortex fan 204 and air duct 209, thus completing the preparation and delivery of air. In practical applications, the control chamber 211 and its controller 202, along with other components, are arranged in conjunction with the air supply chamber 214. The controller 202, combined with multiple sensors, enables the temperature control function of the cooling helmet.

[0033] The control compartment 211 is equipped with a control compartment cover on the inside to facilitate the maintenance of the controller 202.

[0034] The direction of the heat dissipation fins 216 of the thermoelectric cooler 201 is not limited. Since the direction of outdoor air entering the ventilation chamber 213 is not fixed, it can enter through the bottom air inlet 217 or through the surrounding air vents of the rear heat dissipation vent 208. After heat exchange through the heat dissipation fins 216, it is blown out by the axial flow fan 205 to complete the heat dissipation of the hot end of the thermoelectric cooler 201.

[0035] Furthermore, an air duct 219 is provided at the outlet of the air supply chamber 214, and an air supply duct 4 is provided in conjunction with the air duct 219. The air supply duct 4 is prefabricated using materials such as PVC or laid with a flexible material that prevents collapse, with a flat tube structure being preferred. The direction and curvature of the air supply duct 4 are adapted to the structure of the shell 1. The air that has been heat-exchanged by the semiconductor cooling chip 201 is evenly delivered into the helmet through the air supply duct 4.

[0036] Furthermore, an air distribution box 3 is provided in the air duct 219 at the outlet of the air supply compartment 214. The shape of the air distribution box 3 matches the air duct 219. The air distribution box 3 includes an air supply interface 301 that connects to the air supply compartment 214, and a top supply interface 302 and a side supply interface 303 that cooperate with the air supply duct 4. The air supply interface 301 ensures the tightness of air supply by adding a slot or other means. The air supply duct 4 has multiple branch pipes, and the air volume of the multiple branch pipes is distributed by the air distribution box 3, such as... Figure 3As shown, the air supply duct 4 includes a top air supply duct 401 and a side air supply duct 402 that are adapted to the air distribution box 3, and all air supply ducts are provided with air supply outlets 403.

[0037] Furthermore, when a buffer layer 5 and an inner liner 6 are installed inside the shell 1, the buffer layer 5 can be made of materials such as EPS, which can be compressed and deformed when the helmet is impacted, absorbing the impact force and reducing the impact on the head. EPS is also a lightweight material, making it easy to process. To meet air supply requirements, the buffer layer 5 can have a perforated section corresponding to the air supply vent 403 inside the air supply duct 4. The inner liner 6 is primarily designed for wearing comfort and can be made of materials such as velvet. The inner liner 6 also has a perforated section, which matches the perforations in the air supply vent 403 and the buffer layer 5. The perforation range of the inner liner 6 can be flexible, with the main principle being not to obstruct air supply.

[0038] In addition, the power supply of the thermoelectric cooler 201 is equipped with a positive and negative switching switch to enable operation in other modes. The temperature control module 2 and the housing 1 can be assembled in a modular manner, or they can be partially integrated with the housing.

[0039] The helmet in this embodiment can be a half helmet, a 3 / 4 helmet, an off-road helmet, etc., and its technical solution can be inspired by the design principle of this embodiment.

[0040] The above embodiments are illustrative of the present invention and not intended to limit the present invention. The described embodiments are merely some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

Claims

1. A duct-driven cooling helmet, comprising a shell (1), characterized in that a temperature control module (2) is provided at the rear of the shell, the temperature control module comprising a control chamber (211), a power supply chamber (212), a ventilation chamber (213) and an air supply chamber (214); the air supply chamber and the ventilation chamber are separated by a semiconductor cooling chip (201), the semiconductor cooling chip is provided with cold air fins (215) on the side of the air supply chamber and with heat dissipation fins (216) on the side of the ventilation chamber, and the air supply chamber is provided with a vortex fan (204) and the ventilation chamber is provided with an axial fan (205); the air supply chamber outlet is provided with an air duct (219), and an air supply duct (4) is provided in cooperation with the air duct.

2. The duct-driven air-supply type cooling helmet according to claim 1, characterized in that, The air supply chamber (214) outlet air duct (219) is provided with an air distribution box (3), and the air supply duct (4) is provided with several branch pipes, which cooperate with the air distribution box.

3. A duct-driven air-supply type cooling helmet according to claim 1 or 2, characterized in that, The air supply duct (4) includes a top air supply duct (401) and a side air supply duct (402), and an air supply outlet (403) is provided on the air supply duct.

4. A duct-driven air-cooled helmet according to claim 1, characterized in that, The air supply chamber (214) has a fresh air inlet (217) at the bottom, and an air inlet (218) is provided below the ventilation chamber (213). The ventilation chamber has a heat dissipation vent (208) facing the rear of the helmet. The cold air fins (215) are arranged vertically in the same direction as the airflow.

5. A duct-driven air-cooled helmet according to claim 1, characterized in that, The control cabin (211) is equipped with a controller (202), and several sensors are installed in conjunction with the controller.

6. A duct-driven air-cooled helmet according to claim 5, characterized in that, The sensor has temperature and humidity monitoring and data transmission functions. The sensor includes an in-helmet sensor (210) located inside the helmet, an air supply sensor (209) located in the air duct (219), and a cold end sensor (206) and a hot end sensor (207) set at both ends of the semiconductor cooling chip (201).

7. A duct-driven air-cooled helmet according to claim 2, characterized in that, The shape of the air distribution box (3) is sealed to fit the air duct (219). The air distribution box includes an air supply interface (301) connected to the air supply chamber (214), and a top supply interface (302) and a side supply interface (303) that cooperate with the air supply duct (4).

8. A duct-driven air-cooled helmet according to claim 3, characterized in that, The housing (1) is provided with a buffer pad layer (5) and an inner liner (6), and the buffer pad layer and the inner liner are provided with hollowed-out parts that cooperate with the air outlet (403).

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