External motorcycle helmet heat dissipation device

Abstract

The utility model relates to the technical field of helmets, and particularly discloses an external motorcycle helmet heat dissipation device. According to the helmet, a fan base is arranged outside a helmet body; the fan shell is arranged on the fan base, and a quick release structure for detachably connecting the fan base and the fan shell is arranged between the fan base and the fan shell; the fan is arranged in the fan shell, the fan shell is provided with a ventilation hole for air inlet of the fan, and a ventilation cavity communicated with the fan is arranged between the fan base and the fan shell; the power module is arranged in the fan shell and used for supplying power to the fan for operation. The air guide hose is arranged in the helmet body and communicates with the ventilation cavity. According to the utility model, the helmet body does not need to be subjected to trepanning, slotting and other structural modifications, so that the safety of the helmet is greatly guaranteed; the ventilation cavity communicated with the fan conveys air to all positions of the helmet body through the air guide hose, high-coverage heat dissipation is achieved, and the heat dissipation efficiency is higher; the power module is integrated in the fan shell, so that disassembly for charging or replacement for endurance is facilitated.

Description

Technical Field

[0001] This utility model relates to the technical field of helmets, and specifically discloses an external motorcycle helmet heat dissipation device. Background Technology

[0002] Traditional motorcycle helmets present several problems during use, especially in the high temperatures of summer. The primary function of a motorcycle helmet is to protect the rider's head, and its structure is typically designed to be relatively enclosed to effectively cushion and protect the head in the event of a collision or other accident. However, this enclosed design can easily lead to overheating and sweating in hot summer weather, especially when the motorcycle is parked. The lack of air circulation prevents the head from dissipating heat effectively, causing significant discomfort for the rider and potentially affecting their concentration and driving safety.

[0003] To address this issue, some motorcycle helmets with cooling functions have appeared on the market. However, most existing cooling solutions use built-in micro-fans for heat dissipation. While this can alleviate the problem of stuffiness on the head to some extent, this design requires structural modifications such as openings and slots inside the helmet, thus compromising its structural safety. Helmet safety is one of its most important performance indicators; any damage to the helmet's structure can affect its protective function in critical moments, which is a hidden danger that cannot be ignored.

[0004] Furthermore, existing built-in cooling solutions suffer from the inability to quickly and directionally deliver airflow. Because the fan is installed inside the helmet, its airflow direction and range are limited, making it difficult to achieve high-coverage cooling for all parts of the head. In actual use, riders may not experience a noticeable cooling effect, especially in high-heat areas such as the forehead and neck, where the cooling effect is poor and fails to meet riders' comfort needs in high-temperature environments.

[0005] In summary, existing motorcycle helmet cooling solutions have certain shortcomings in terms of safety, heat dissipation effect, and comfort. There is an urgent need for a new cooling device to solve these problems, improve the rider's experience in high-temperature environments, and ensure that the helmet's safety performance is not affected. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an external motorcycle helmet heat dissipation device.

[0007] This utility model discloses an external motorcycle helmet cooling device, which adopts the following technical solution:

[0008] An external motorcycle helmet cooling device is installed on the helmet body, and the helmet body is provided with:

[0009] The fan base is located on the outside of the helmet body;

[0010] The fan housing is mounted on the fan base, and a quick-release structure is provided between the fan base and the fan housing for detachable connection between the two.

[0011] A fan is disposed in a fan housing, the fan housing having ventilation holes for air intake, and a ventilation cavity communicating with the fan is provided between the fan base and the fan housing;

[0012] A power module, housed in the fan housing, is used to supply power to the fan for operation;

[0013] The air duct is installed inside the helmet and is connected to the ventilation cavity.

[0014] Preferably, the fan is a turbine fan, the ventilation hole is located on the axial side of the turbine fan, and the ventilation cavity is located on the radial side of the turbine fan.

[0015] Preferably, the fan base has a mounting portion and an air cavity portion. The mounting portion is located on the outside of the helmet body for connecting to the fan housing. The air cavity portion spans the bottom edge of the helmet body for connecting to the air guide hose. The air cavity portion belongs to at least a portion of the ventilation cavity.

[0016] Preferably, the mounting part and the air cavity part are detachable separate structures; the fan base includes a mounting seat and an air cavity seat, the mounting part is formed in the mounting seat, the mounting seat is provided with a first ventilation groove, the air cavity seat is provided with a second ventilation groove, the air cavity seat and the mounting seat are connected and assembled, and the first ventilation groove and the second ventilation groove are connected to form the air cavity part.

[0017] Preferably, the mounting base is provided with a connecting arm, the connecting arm is provided with a hook, the air cavity seat is provided with a protrusion that matches and engages with the hook, and the protrusion is provided with a plurality of protrusions arranged at intervals along the insertion direction; the first ventilation groove and the second ventilation groove are fitted together to form the air cavity portion.

[0018] Preferably, the fan housing is provided with a fan mounting part, a battery mounting part, and an air supply part. The battery mounting part and the air supply part are respectively located on the radial side of the fan mounting part. The fan is installed in the fan mounting part, the power module is installed in the battery mounting part, the air supply part belongs to at least part of the ventilation cavity, and an air guide baffle extending to the air supply part is provided between the battery mounting part and the fan mounting part.

[0019] Preferably, the fan base is connected to the helmet body by an adhesive strip.

[0020] Preferably, the quick-release structure includes a plurality of locking blocks disposed on the fan base and a plurality of locking slots disposed on the fan housing that match and engage with the locking blocks; or / and includes a plurality of locking blocks disposed on the fan housing and a plurality of locking slots disposed on the fan base that match and engage with the locking blocks.

[0021] Preferably, the helmet body is provided with a helmet liner, and the helmet liner is provided with a buried pipe groove for accommodating the air guide hose, and the air guide hose is disposed in the buried pipe groove.

[0022] Preferably, the air cavity base is provided with a plurality of air duct plugs communicating with the ventilation cavity, and the air guide hose is connected to the air duct plugs; the other end of the air guide hose away from the fan base is provided with an air outlet adjustment component, one end of the air outlet adjustment component is plugged into and communicated with the air guide hose, and the other end is provided with a radially arranged air outlet.

[0023] Compared with the prior art, the present invention has at least the following beneficial effects:

[0024] 1. The external motorcycle helmet cooling device of this utility model assembles the fan on the outside of the helmet body by setting a fan base, so that there is no need to make structural modifications to the helmet body such as opening holes or slots, thus making the helmet safer.

[0025] 2. A ventilation cavity connected to the fan outlet is provided between the fan base and the fan housing, and the cooling air is delivered to all parts of the helmet body through the air guide hose, so as to achieve high coverage heat dissipation and higher heat dissipation efficiency.

[0026] 3. The power module is integrated into the fan housing, making it easy to disassemble for charging or battery replacement. After disassembly, it is small in size, and the modular design makes it more portable. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the external motorcycle helmet cooling device in this embodiment;

[0028] Figure 2 This is a schematic diagram showing the disassembly of the main unit of the external motorcycle helmet cooling device in this embodiment;

[0029] Figure 3 This embodiment presents a structurally disassembled schematic diagram of the external motorcycle helmet cooling device;

[0030] Figure 4 for Figure 3 Another perspective illustration;

[0031] Figure 5 This is a cross-sectional view of the external motorcycle helmet cooling device of this embodiment;

[0032] Figure 6This is a schematic diagram of the installation of the external motorcycle helmet cooling device in this embodiment.

[0033] Explanation of icon numbers:

[0034] 1. Helmet body; 11. Pipe trench;

[0035] 2. Fan base; 21. Mounting bracket; 211. First ventilation slot; 22. Air chamber seat; 221. Second ventilation slot; 23. Connecting arm; 24. Protrusion; 25. Air duct plug; 26. Sealing ring; 27. Clip; 28. Adhesive piece;

[0036] 3. Main unit; 31. Fan housing; 311. Ventilation hole; 312. Fan mounting part; 313. Battery mounting part; 314. Air guide baffle; 315. Card slot; 32. Fan; 33. Power module;

[0037] 4. Air guide hose; 41. Air outlet adjustment component;

[0038] 5. Ventilation cavity; 51. Air supply section; 52. Air cavity section;

[0039] 6. Dedicated soldering iron. Detailed Implementation

[0040] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0041] This embodiment discloses an external motorcycle helmet cooling device, which is installed on the helmet body 1. The helmet body 1 is specifically a full-face motorcycle helmet, and the helmet body 1 is provided with a fan base 2, a main unit 3, and a duct 4.

[0042] Reference Figure 1-3 The fan base 2 is located on the outside of the helmet body 1, and can be connected to the helmet body 1 by setting an adhesive piece 28. The main unit 3 includes a fan housing 31, a fan 32, and a power module 33. The fan housing 31 is located on the fan base 2, and a quick-release structure for detachable connection between the fan base 2 and the fan housing 31 is provided. The fan 32 is located in the fan housing 31, and the fan housing 31 has a ventilation hole 311 for the fan 32 to enter the air. A ventilation cavity 5 communicating with the fan 32 is provided between the fan base 2 and the fan housing 31. The power module 33 is located in the fan housing 31 and is used to supply power to the fan 32. The air guide hose 4 is located inside the helmet body 1. The helmet body 1 has a foam helmet liner (hidden in the attached figure). The helmet liner has a buried tube groove 11 for accommodating the air guide hose 4. The air guide hose 4 is located in the buried tube groove 11 and communicates with the ventilation cavity 5 to guide the cooling air into the helmet body 1 and blow it towards the head or face.

[0043] By adopting an external fan cooling structure, the air duct 4 is arranged inside the helmet body 1 to cover the high-heat area of ​​the head, achieving rapid directional airflow to regulate the air and cool down the helmet. The airflow efficiency is high. Furthermore, by setting the fan base 2, no drilling or modification of the helmet structure is required, which meets the safety certification requirements. The problem of head heat dissipation when riding a helmet is solved without compromising the safety of the helmet structure. In addition, it also meets the requirements of lightweight, low power consumption, and quick disassembly and assembly. Through modular design, the fan shell 31 integrates the power module 33. The lithium battery has a long power supply time and supports USB fast charging. When the battery is depleted, the main unit 3 can be removed from the fan base 2 and replaced to continue working. The power module 33 can be electrically connected to an intelligent control unit including a temperature sensor, realizing dual modes of supporting temperature control sensing (automatic start / stop) or manual switch function, with standby power consumption <0.1W.

[0044] In this embodiment, refer to Figure 3-5 The fan 32 is a turbine fan, with ventilation holes 311 located on one axial side of the turbine fan 32 and ventilation cavity 5 located on one radial side of the turbine fan 32. The turbine fan 32 has the advantages of low energy consumption and low noise, with a noise reduction design (≤35dB). Furthermore, the fan base 2 has a mounting part and an air cavity part 52. The mounting part is located on the outside of the helmet body 1 for connecting the fan housing, and the air cavity part 52 spans the bottom edge of the helmet body 1 for connecting the air guide hose 4. The air cavity part 52 is at least part of the ventilation cavity 5. By cleverly combining the air inlet and outlet orientation of the turbine fan 32 with the structure of the helmet body 1, the heat dissipation device is positioned on the lower outer side of the full-face helmet body 1, achieving high air delivery efficiency while meeting the requirement of a compact size, minimizing the impact on the use of the motorcycle helmet.

[0045] As a preferred embodiment, the mounting section and the air cavity section are detachable separate structures. The fan base 2 includes a mounting base 21 and an air cavity seat 22. The mounting section is formed on the mounting base 21, which has a first ventilation groove 211. The air cavity seat 22 has a second ventilation groove 221. The air cavity seat 22 and the mounting base 21 are plugged into each other for assembly. The first ventilation groove 211 and the second ventilation groove 221 are connected to form the air cavity section 52. By adopting a separate structure, it is easy to manufacture and assemble.

[0046] Specifically, the mounting base 21 is provided with a connecting arm 23, and the connecting arm 23 is provided with a hook. The air cavity seat 22 is provided with a protrusion 24 that matches and engages with the hook. In a further preferred embodiment, the protrusion 24 is provided with multiple protrusions spaced apart along the insertion direction. By adopting this design, combined with the special position layout of the mounting base 21 and the air cavity seat 22 in the helmet body 1, and considering the different thicknesses of the helmet liner inside different models of helmet body 1, the mounting base 21 can be inserted into the protrusions at different positions of the air cavity seat 22 to achieve the extension and retraction of the axial length of the air cavity 52. ​​This improves the installation adaptability of the heat dissipation device. Moreover, the first ventilation groove 211 and the second ventilation groove 221 are fitted together to form the air cavity 52. ​​The extension and retraction adjustment can be adapted to the thickness of the helmet body and the helmet liner without occupying extra space, meeting the safety and comfort requirements of motorcycle helmet wearing. Preferably, the air cavity seat 22 can be fitted with a sealing ring 26 to improve the sealing performance between the first ventilation groove 211 and the second ventilation groove 221.

[0047] As a preferred embodiment, the air chamber seat 22 is provided with several air duct plugs 25 that communicate with the second ventilation slot 221. The air guide hose 4 is connected to the air duct plugs 25 and distributed along the edge of the helmet liner of the helmet body 1. In addition, the end of the air guide hose 4 is provided with an air outlet adjustment component 41. One end of the air outlet adjustment component 41 is connected to the air guide hose 4 by plugging, and the other end is provided with a radially arranged air outlet. The size of the opening exposed at the edge of the helmet liner can be adjusted by rotating the air outlet adjustment component 41 in the buried pipe slot 11, thereby adjusting the air volume.

[0048] As a preferred embodiment, the fan housing 31 includes a fan mounting portion 312, a battery mounting portion 313, and an air supply portion 51. The battery mounting portion 313 and the air supply portion 51 are located on the radial sides of the fan mounting portion 312. The turbine fan 32 is mounted in the fan mounting portion 312, and the power module 33 is mounted in the battery mounting portion 313. The air supply portion 51 is at least part of the ventilation cavity 5. A guide baffle 314 extending to the air supply portion 51 is provided between the battery mounting portion 313 and the fan mounting portion 312. By adopting the above design, the air supply efficiency of the turbine fan 32 is higher, and energy consumption is reduced. At the same time, the heat generated by the power module 33 is not easily transferred to the ventilation cavity 5, thereby further improving the cooling effect.

[0049] See Figure 4In this embodiment, an air guide port is provided at the connection between the air supply part 51 and the fan mounting part 312. The inner diameter of the fan mounting part 312 is larger than the inner diameter of the air guide port, and the inner diameter of the air guide port is smaller than the inner diameter of the air supply part 51. This allows the air from the fan mounting part 312 to be centrifugally drawn to the air guide port by the turbine fan 32. Due to the sudden decrease in inner diameter, the airflow velocity increases, resulting in a decrease in pressure. This utilizes the principle of pressure difference to achieve a negative pressure suction effect, thereby improving the air intake efficiency of the turbine fan 32 and reducing energy consumption. Simultaneously, in this embodiment… An inclined air guide plate is provided near the air inlet of the air supply section 51. The inclined air guide plate guides the introduced air towards the ventilation cavity 5. On the other hand, since the diameter of the introduced air suddenly increases from the air inlet to the air supply section 51, the flow rate decreases and the air pressure increases. At this time, the inclined air guide plate pushes the cold air from the high pressure to the low pressure air cavity section 52, thereby accelerating the exhaust of the cold air. The special structure of the fan housing 31 in this embodiment maximizes the heat dissipation and ventilation effect of the turbine fan 32.

[0050] In this embodiment, the quick-release structure includes several locking blocks 27 disposed on the mounting base 21 and several locking slots 315 disposed on the fan housing 31 that match and engage with the locking blocks 27. Alternatively, the positions of the locking slots 315 and the locking blocks 27 can be interchanged or both can be provided. As a preferred embodiment, the locking blocks 27 are provided with outwardly protruding opening wings, so that personnel can more easily pry open the locking block and the locking slot connection with their fingers on the opening wings, making the disassembly process more convenient. Of course, in other embodiments, magnetic or other connection structures can be used instead of the locking structure, while the locking structure is beneficial for the compact design of the heat dissipation device.

[0051] See Figure 6 The installation steps for the external motorcycle helmet cooling device of this utility model are as follows:

[0052] ① Attach the fan base 2 to the top right edge of the helmet body 1;

[0053] ② Mount the main unit 3 onto the fan base 2;

[0054] ③ Use a special soldering iron 6 to carve out several tube embedding grooves 11 on the helmet liner;

[0055] ④ Embed the air guide hose 4 along the edge of the helmet liner, attach and fix it in the buried pipe groove 11, and connect the air guide hose 4 to the fan base 2 through the air pipe plug 25;

[0056] ⑤ Installation complete.

[0057] The working process of an external motorcycle helmet cooling device is as follows:

[0058] Automatically turns on when temperature exceeds set temperature, or manually starts → fan runs → cool air is output / input from forehead / neck vents via air duct.

[0059] The technical solution provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An external motorcycle helmet cooling device, installed on the helmet body, characterized in that, The helmet body is equipped with: The fan base is located on the outside of the helmet body; The fan housing is mounted on the fan base, and a quick-release structure is provided between the fan base and the fan housing for detachable connection between the two. A fan is disposed in a fan housing, the fan housing having ventilation holes for air intake, and a ventilation cavity communicating with the fan is provided between the fan base and the fan housing; A power module, housed in the fan housing, is used to supply power to the fan for operation; The air duct is installed inside the helmet and is connected to the ventilation cavity.

2. The external motorcycle helmet cooling device according to claim 1, characterized in that, The fan is a turbine fan, the ventilation hole is located on the axial side of the turbine fan, and the ventilation cavity is located on the radial side of the turbine fan.

3. The external motorcycle helmet cooling device according to claim 2, characterized in that, The fan base has a mounting portion and an air cavity portion. The mounting portion is located on the outside of the helmet body and is used to connect to the fan housing. The air cavity portion spans the bottom edge of the helmet body and is used to connect to the air guide hose. The air cavity portion belongs to at least a portion of the ventilation cavity.

4. The external motorcycle helmet cooling device according to claim 3, characterized in that, The mounting part and the air cavity part are detachable separate structures; the fan base includes a mounting seat and an air cavity seat, the mounting part is formed on the mounting seat, the mounting seat is provided with a first ventilation groove, the air cavity seat is provided with a second ventilation groove, the air cavity seat and the mounting seat are connected and assembled, and the first ventilation groove and the second ventilation groove are connected to form the air cavity part.

5. The external motorcycle helmet cooling device according to claim 4, characterized in that, The mounting base is provided with a connecting arm, the connecting arm is provided with a hook, the air cavity seat is provided with a protrusion that matches and engages with the hook, and the protrusion is provided with a plurality of protrusions arranged at intervals along the insertion direction; the first ventilation groove and the second ventilation groove are fitted together to form the air cavity portion.

6. The external motorcycle helmet cooling device according to claim 2, characterized in that, The fan housing has a fan mounting part, a battery mounting part, and an air supply part. The battery mounting part and the air supply part are respectively located on the radial side of the fan mounting part. The fan is installed in the fan mounting part, the power module is installed in the battery mounting part, the air supply part belongs to at least part of the ventilation cavity, and an air guide baffle extending to the air supply part is provided between the battery mounting part and the fan mounting part.

7. The external motorcycle helmet cooling device according to any one of claims 1-6, characterized in that, The fan base is connected to the helmet body via an adhesive strip.

8. The external motorcycle helmet cooling device according to any one of claims 1-6, characterized in that, The quick-release structure includes a plurality of locking blocks disposed on the fan base and a plurality of locking slots disposed on the fan housing that match and engage with the locking blocks; or / and includes a plurality of locking blocks disposed on the fan housing and a plurality of locking slots disposed on the fan base that match and engage with the locking blocks.

9. The external motorcycle helmet cooling device according to any one of claims 1-6, characterized in that, The helmet body is provided with a helmet liner, and the helmet liner is provided with a buried pipe groove for accommodating the air guide hose, and the air guide hose is disposed in the buried pipe groove.

10. The external motorcycle helmet cooling device according to any one of claims 1-6, characterized in that, The air cavity base is provided with several air duct plugs that communicate with the ventilation cavity, and the air guide hose is connected to the air duct plugs; the other end of the air guide hose away from the fan base is provided with an air outlet adjustment component, one end of the air outlet adjustment component is inserted and connected to the air guide hose, and the other end is provided with a radially arranged air outlet.

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