A down jacket with a back heat dissipation and airflow structure

Abstract

This invention relates to the field of clothing technology, and in particular to a down jacket with a back heat dissipation and airflow guiding structure, comprising a fabric layer, a lining layer, a down interlayer, and a heat dissipation and airflow guiding mechanism. The heat dissipation and airflow guiding mechanism includes a guiding channel, a guide plate assembly, and an adjustment mechanism. The guiding channel is located inside the down interlayer between the fabric layer and the lining layer. The guide plate assembly is disposed on the inner wall of the guiding channel and is inclined. The adjustment mechanism is connected to the guide plate assembly to change the angle of the guide blades to adjust the heat dissipation. The guide plate assembly includes multiple guide blades, each of which is rotatably connected to the inner wall of the guiding channel via a rotating shaft. The adjustment mechanism includes an adjustment rope and an adjustment buckle. One end of the adjustment rope is fixedly connected to the bottom of the guide blade, and the adjustment buckle is fixedly connected to the outer wall of the fabric layer. This application enables effective heat dissipation and airflow guiding at the back.

Description

Technical Field

[0001] This application belongs to the field of clothing technology, and more specifically, relates to a down jacket with a back heat dissipation and airflow guiding structure. Background Technology

[0002] Down jackets, as a common type of thermal clothing, offer excellent warmth in winter and are widely used in outdoor work, daily commutes, and many other fields. The warmth of down jackets primarily relies on the air layer stored within the down filling to prevent heat loss, thus achieving a insulating effect. However, because down jackets typically have good insulation properties, heat generated on the back is difficult to dissipate effectively during wear, leading to reduced comfort, especially during exercise or in high temperatures, when the back can easily feel stuffy and hot.

[0003] To address this issue, some down jacket designs with heat dissipation features have emerged on the market, typically enhancing heat dissipation through ventilation holes or breathable fabrics at the back. However, most existing heat dissipation designs involve directly creating ventilation holes or using breathable fabrics at the back of the down jacket. While these structures can increase breathability to some extent, they can lead to excessive heat loss, reducing the down jacket's warmth retention. Furthermore, in cold environments, cold air may directly enter the body, affecting warmth retention. Therefore, how to achieve effective heat dissipation at the back while maintaining good warmth retention remains a technical problem that needs to be solved in down jacket design. Summary of the Invention

[0004] To address the technical problems mentioned in the background section, a down jacket with a back heat dissipation and airflow guiding structure is provided. To achieve the above objectives, the technical solution adopted in this application is: a down jacket with a back heat dissipation and airflow guiding structure, comprising a fabric layer, a lining layer, a down interlayer, and a heat dissipation and airflow guiding mechanism, wherein: The heat dissipation and airflow guiding mechanism includes an airflow guiding channel, a guide plate assembly, and an adjustment mechanism. The airflow guiding channel is located inside the down interlayer between the fabric layer and the lining layer. The guide plate assembly is located on the inner wall of the airflow guiding channel and is inclined. The adjustment mechanism is connected to the guide plate assembly and is used to change the angle of the guide plate assembly to adjust the heat dissipation.

[0005] The guide plate assembly includes multiple guide blades, which are rotatably connected to the inner wall of the flow channel. One end of each guide blade extends into the interior of the flow channel, and the other end is linked to the adjustment mechanism.

[0006] The adjustment mechanism includes an adjustment rope and an adjustment buckle. One end of the adjustment rope is fixedly connected to the bottom of the guide vane, and the adjustment buckle is fixedly connected to the outer wall of the fabric layer and connected to the other end of the adjustment rope.

[0007] Preferably, the flow channel is provided through the thickness direction of the down interlayer, the top of the flow channel is connected to the outer surface of the fabric layer, and the bottom of the flow channel is connected to the inner surface of the lining layer.

[0008] Preferably, the plurality of guide vanes are evenly distributed along the length of the flow channel, and each guide vane is rotatably connected to the inner wall of the flow channel via a rotating shaft.

[0009] Preferably, a heat insulation sleeve is fixedly connected to the inner wall of the flow guiding channel, and the heat insulation sleeve fills the gap between the guide vane and the inner wall of the flow guiding channel.

[0010] Preferably, the heat insulation layer is made of polyester fiber material, and the thickness of the heat insulation layer is half the thickness of the fabric layer.

[0011] Preferably, the fabric layer includes an outer fabric and a protective layer, wherein the protective layer is provided on the inner side of the outer fabric, and the protective layer is made of windproof and waterproof fabric.

[0012] Preferably, the lining layer includes an inner fabric and a comfort layer, wherein the comfort layer is provided on the outer side of the inner fabric and the comfort layer is made of a skin-friendly fabric.

[0013] Preferably, the top of the flow channel is provided with a windproof cover plate, the windproof cover plate is fixedly connected to the outer wall of the fabric layer, and the windproof cover plate has a vent in the middle.

[0014] Preferably, a windproof curtain is fixedly connected to the inner wall of the windproof cover, and the windproof curtain is made of flexible material and hangs down naturally to cover the area below the vent.

[0015] Preferably, the windproof curtain is made of nylon fabric, and the thickness of the windproof curtain is one-third of the thickness of the outer fabric.

[0016] Preferably, the adjusting buckle has a locking mechanism inside, the locking mechanism including a locking tooth and a locking groove, the locking tooth being located on the outer wall of the adjusting rope, and the locking groove being located on the inner wall of the adjusting buckle.

[0017] Preferably, the teeth engage with the slots to lock the position of the adjusting rope.

[0018] Preferably, the outer wall of the guide vane is covered with an insulation layer, which is filled with down material.

[0019] Preferably, the bottom of the flow channel is provided with a converging plate, which is inclinedly disposed on the inner surface of the inner material layer and connected to the bottom of the flow channel.

[0020] Preferably, the surface of the manifold is provided with a plurality of flow guiding grooves, and the plurality of flow guiding grooves are evenly distributed along the width direction of the manifold.

[0021] Preferably, the depth of the flow guiding groove is one-third of the thickness of the manifold, and the width of the flow guiding groove is one-half of the width of the manifold.

[0022] Preferably, a fixed seam is provided between the fabric layer and the lining layer, and the fixed seam is distributed in a grid pattern and divides the down interlayer into multiple independent cavities.

[0023] Preferably, each of the independent cavities is filled with down filling material, and the independent cavities are isolated from each other by fixed stitches.

[0024] Preferably, the heat dissipation and airflow guiding mechanism is located in the middle of the down interlayer and in the area corresponding to the scapula of the human body.

[0025] Preferably, the area corresponding to the scapula accounts for one-eighth to one-sixth of the total area of ​​the down interlayer.

[0026] Compared with the prior art, the beneficial effects of the present invention are: By incorporating airflow channels within the down filling layer between the outer and inner layers, and through the coordinated action of guide plates and adjustment mechanisms, effective heat dissipation at the back is achieved while maintaining the down jacket's excellent warmth retention. Specifically, the airflow channels provide a pathway for heat to escape from the back, while the tilted design of the guide plates directs the airflow along a specific path, preventing excessive heat loss. The adjustment mechanism allows the wearer to adjust the angle of the guide blades according to their needs, controlling the amount of heat dissipation and flexibly switching between warmth and heat dissipation. The insulation layer reduces heat conduction, preventing unintended heat loss through the inner walls of the airflow channels. The combination of windproof flaps and curtains prevents cold air from entering the body through the airflow channels, maintaining good warmth retention while ensuring heat dissipation. The adjustable cord and buckle allow for convenient adjustment and locking of the guide blade angle, offering simple and practical operation. The converging plate further guides the dissipated heat, improving heat dissipation efficiency. The grid-like distribution of the fixed seams ensures the even distribution of the down filling and prevents the opening of airflow channels from affecting the overall warmth performance. This invention effectively solves the technical problems of excessive heat loss or cold air intrusion caused by the heat dissipation design in the prior art, thus balancing warmth and heat dissipation comfort. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the heat dissipation and airflow guiding mechanism according to an embodiment of this application; Figure 3 This is a schematic diagram of the connection structure between the guide plate assembly and the adjustment mechanism of the present invention; Figure 4 This is a schematic diagram of the windproof cover and windproof curtain structure according to an embodiment of this application.

[0029] Explanation of symbols in the diagram: 1. Outer fabric layer; 2. Lining layer; 3. Down interlayer; 4. Heat dissipation and airflow guiding mechanism; 5. Airflow guiding channel; 6. Guide plate assembly; 7. Adjustment mechanism; 8. Guide blade; 9. Adjustment rope; 10. Adjustment buckle; 11. Heat insulation sleeve layer; 12. Windproof cover plate; 13. Vent; 14. Windproof curtain; 15. Combustion plate; 16. Airflow guiding groove. Detailed Implementation

[0030] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0031] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0032] like Figures 1-4 As shown, this application provides a down jacket with a back heat dissipation and airflow structure. This down jacket is mainly used for outdoor activities in winter. By setting a heat dissipation and airflow mechanism on the back, heat can be effectively dissipated while maintaining the overall warmth performance.

[0033] It includes an outer fabric layer 1, an inner lining layer 2, a down filling layer 3, and a heat dissipation and heat dissipation mechanism 4, wherein: Fabric layer 1 is the outer structure of the down jacket. It includes an outer fabric and a protective layer. The protective layer is located inside the outer fabric and is made of windproof and waterproof fabric. The outer fabric is made of high-density nylon or polyester fiber, while the protective layer uses a waterproof polyurethane coating or ePTFE breathable and waterproof membrane. The protective layer is fixed to the outer fabric by heat-pressing or adhesive bonding. The outer surface of fabric layer 1 forms the visual appearance of the down jacket, and the inner surface of fabric layer 1 is connected to the down filling layer 3.

[0034] Lining layer 2 is the inner structure of the down jacket, consisting of an inner fabric and a comfort layer. The comfort layer is located on the outer side of the inner fabric and is made of a skin-friendly fabric. The inner fabric is made of pure cotton or bamboo fiber, while the comfort layer is made of brushed polyester fabric. The comfort layer and the inner fabric are fixed together by sewing or bonding. The inner surface of lining layer 2 is in contact with the wearer's body, providing a soft touch and good breathability.

[0035] A down filling layer 3 is placed between the outer fabric layer 1 and the lining layer 2. The down filling layer 3 is filled with down, either duck down or goose down, with the filling density determined according to actual warmth requirements. A grid-like seam is installed between the outer fabric layer 1 and the lining layer 2, dividing the down filling layer 3 into multiple independent cavities. Each independent cavity is filled with down, and the cavities are separated from each other by the seam. The seam ensures the even distribution of the down filling and prevents the opening of drainage channels from affecting the overall warmth performance.

[0036] The heat dissipation and airflow guiding mechanism 4 is located in the middle of the down interlayer 3 and in the area corresponding to the scapula of the human body. The area corresponding to the scapula accounts for one-eighth to one-sixth of the total area of ​​the down interlayer 3. The heat dissipation and airflow guiding mechanism 4 includes an airflow guiding channel 5, a guide plate assembly 6, and an adjustment mechanism 7.

[0037] A flow channel 5 is formed inside the down interlayer 3 between the fabric layer 1 and the lining layer 2. The flow channel 5 extends through the down interlayer 3 along its thickness direction. The top of the flow channel 5 is connected to the outer surface of the fabric layer 1, and the bottom of the flow channel 5 is connected to the inner surface of the lining layer 2. The cross-sectional shape of the flow channel 5 is square or circular, and the specific shape is determined according to actual design requirements. A windproof cover 12 is provided at the top of the flow channel 5. The windproof cover 12 is fixedly connected to the outer wall of the fabric layer 1, and a vent 13 is provided in the middle of the windproof cover 12. The windproof cover 12 is arc-shaped or elliptical, and its periphery is fixedly connected to the outer wall of the fabric layer 1 by stitching. The vent 13 is located in the middle of the windproof cover 12, and the vent 13 is circular or elliptical in shape, and is connected to the top of the flow channel 5. A windproof curtain 14 is fixedly connected to the inner wall of the windproof cover 12. The windproof curtain 14 is made of flexible material and hangs down naturally, blocking the air vent 13. The windproof curtain 14 is made of nylon fabric, and its thickness is one-third of the thickness of the outer fabric. In its natural state, the windproof curtain 14 hangs down, blocking the air vent 13. When heat accumulates on the back and generates a certain pressure, the windproof curtain 14 flips upward and opens, allowing the heat to escape through the air vent 13. When cold air from outside enters, the windproof curtain 14 hangs down naturally under the action of gravity, blocking the air vent 13 again, thus achieving the windproof effect.

[0038] A heat insulation sleeve 11 is fixedly connected to the inner wall of the flow channel 5, filling the gap between the guide vane 8 and the inner wall of the flow channel 5. The heat insulation sleeve 11 is made of polyester fiber material, and its thickness is half the thickness of the fabric layer 1. The heat insulation sleeve 11 reduces heat conduction and prevents heat from being lost unintended through the inner wall of the flow channel 5.

[0039] The guide plate assembly 6 is located on the inner wall of the flow channel 5 and is inclined. The guide plate assembly 6 includes multiple guide blades 8, which are rotatably connected to the inner wall of the flow channel 5. One end of each guide blade 8 extends into the interior of the flow channel 5, and the other end is linked to the adjustment mechanism 7. The multiple guide blades 8 are evenly distributed along the length of the flow channel 5, and each guide blade 8 is rotatably connected to the inner wall of the flow channel 5 via a rotating shaft. The rotating shaft is horizontally set on the inner wall of the flow channel 5, and the middle part of the guide blade 8 is movably connected to the rotating shaft, allowing the guide blade 8 to rotate around the rotating shaft. The outer wall of the guide blade 8 is covered with an insulation layer filled with down material. The insulation layer ensures that the guide blade 8 will not have its insulation performance affected by excessively low temperatures during adjustment.

[0040] The adjusting mechanism 7 is connected to the guide plate assembly 6. The adjusting mechanism 7 includes an adjusting rope 9 and an adjusting buckle 10. One end of the adjusting rope 9 is fixedly connected to the bottom of the guide blade 8, and the adjusting buckle 10 is fixedly connected to the outer wall of the fabric layer 1 and connected to the other end of the adjusting rope 9. The adjusting rope 9 is made of nylon or cotton rope. One end of the adjusting rope 9 is sewn to the bottom of the guide blade 8, and the other end passes through the fabric layer 1 and connects to the adjusting buckle 10. The adjusting buckle 10 is fixedly sewn to the outer wall of the fabric layer 1. The adjusting buckle 10 has a locking mechanism inside, which includes teeth and grooves. The teeth are located on the outer wall of the adjusting rope 9, and the grooves are located on the inner wall of the adjusting buckle 10. The teeth and grooves engage to lock the adjusting rope 9 in position. The teeth are multiple protrusions on the outer wall of the adjusting rope 9, and the grooves are multiple recesses on the inner wall of the adjusting buckle 10. When the adjusting rope 9 is pulled to the appropriate position, the teeth and grooves engage to lock the position.

[0041] A converging plate 15 is provided at the bottom of the flow channel 5. The converging plate 15 is inclinedly disposed on the inner surface of the inner material layer 2 and connected to the bottom of the flow channel 5. Multiple flow-guiding grooves 16 are provided on the surface of the converging plate 15, and these grooves are evenly distributed along the width direction of the converging plate 15. The depth of each flow-guiding groove 16 is one-third of the thickness of the converging plate 15, and the width of each groove 16 is half the width of the converging plate 15. The converging plate 15 enables secondary flow guidance of the discharged heat, improving heat dissipation efficiency.

[0042] In this embodiment, the heat dissipation and airflow guiding mechanism 4 enables effective heat dissipation and airflow guiding of the back while maintaining the good warmth retention performance of the down jacket. Specifically, the opening of the airflow channel 5 provides an outlet for heat from the back, while the inclined setting of the guide plate assembly 6 guides the hot airflow, causing it to exit along a specific path and preventing excessive heat loss. The adjustment mechanism 7 allows the wearer to adjust the angle of the guide blades 8 according to actual needs, thereby controlling the amount of heat dissipation and flexibly switching between warmth retention and heat dissipation. The heat insulation layer 11 reduces heat conduction and prevents heat from being lost unexpectedly through the inner wall of the airflow channel 5. The combined setting of the windproof cover 12 and the windproof curtain 14 prevents cold air from entering the body from the airflow channel 5, maintaining a good warmth retention effect while ensuring heat dissipation. The combined setting of the adjustment rope 9 and the adjustment buckle 10 allows for convenient adjustment and locking of the angle of the guide blades 8, making operation simple and practical. The setting of the converging plate 15 can perform secondary airflow guiding of the discharged heat, improving heat dissipation efficiency. The grid-like distribution of the fixed seams ensures the uniform distribution of the down filling and avoids affecting the overall warmth performance due to the opening of the flow channel 5.

[0043] In the above embodiments, as a preferred embodiment, the heat dissipation guiding mechanism 4 is located in the middle of the down interlayer 3 and in the area corresponding to the scapula of the human body. The area corresponding to the scapula accounts for one-eighth to one-sixth of the total area of ​​the down interlayer 3. This location ensures that the heat dissipation guiding mechanism 4 matches the heat-generating area on the back of the human body, achieving efficient heat dissipation without affecting the overall warmth retention performance of the down jacket.

[0044] In the above embodiments, as a preferred embodiment, the flow channel 5 is arranged through the thickness direction of the down interlayer 3, with the top of the flow channel 5 connected to the outer surface of the fabric layer 1 and the bottom of the flow channel 5 connected to the inner surface of the lining layer 2. The through-type flow channel 5 design can form a complete heat dissipation channel. After heat enters the flow channel 5 from the lining layer 2 side, it is discharged from the fabric layer 1 side, achieving effective heat dissipation.

[0045] In the above embodiments, as a preferred embodiment, multiple guide vanes 8 are evenly distributed along the length of the guide channel 5, and each guide vane 8 is rotatably connected to the inner wall of the guide channel 5 via a rotating shaft. The evenly distributed guide vanes 8 can guide the airflow in the guide channel 5 in segments, making the discharge of hot air more uniform and stable, and avoiding the discomfort caused by the concentrated discharge of local hot air.

[0046] In the above embodiments, as a preferred option, the heat insulation layer 11 is made of polyester fiber material, and the thickness of the heat insulation layer 11 is half the thickness of the fabric layer 1. Polyester fiber material has good heat insulation performance, which can effectively prevent heat from being lost unintended through the inner wall of the flow channel 5. At the same time, its thickness design can ensure the heat insulation effect without increasing the volume and weight excessively.

[0047] In the above embodiments, as a preferred embodiment, the fabric layer 1 includes an outer fabric and a protective layer. The protective layer is provided on the inner side of the outer fabric and is made of windproof and waterproof fabric. The outer fabric is made of high-density nylon or polyester fiber fabric, providing good abrasion resistance and downproof properties; the protective layer is made of windproof and waterproof fabric, which can effectively block the intrusion of external cold wind and rainwater, while maintaining a certain degree of breathability.

[0048] In the above embodiments, as a preferred embodiment, the lining layer 2 includes an inner fabric and a comfort layer. The comfort layer is provided on the outer side of the inner fabric and is made of a skin-friendly fabric. The inner fabric is made of pure cotton or bamboo fiber fabric, providing good breathability and moisture absorption; the comfort layer is made of skin-friendly fabric, which is brushed to provide a soft touch and improve wearing comfort.

[0049] In the above embodiment, as a preferred solution, the windproof cover 12 is fixedly connected to the outer wall of the fabric layer 1, and a vent 13 is provided in the middle of the windproof cover 12. The arc-shaped design of the windproof cover 12 can guide the flow direction of airflow and prevent rainwater from falling directly into the guide channel 5. The shape and size of the vent 13 are determined according to the heat dissipation requirements.

[0050] In the above embodiments, as a preferred embodiment, the windproof curtain 14 is made of flexible material and hangs naturally below the vent 13. The windproof curtain 14 is made of nylon fabric, and its thickness is one-third of the thickness of the outer fabric. When there is no airflow, the windproof curtain 14 hangs naturally to block the vent 13, preventing cold air from entering; when the internal air pressure is higher than the external pressure, the windproof curtain 14 flips upward and opens to allow hot air to escape.

[0051] In the above embodiments, as a preferred option, the adjusting buckle 10 is provided with a locking mechanism inside. The locking mechanism includes a locking tooth and a locking groove. The locking tooth is located on the outer wall of the adjusting rope 9, and the locking groove is located on the inner wall of the adjusting buckle 10. The locking tooth and the locking groove engage to achieve the positioning and locking of the adjusting rope 9. The locking mechanism can fix the adjusting rope 9 in any position, realizing stepless adjustment and locking of the angle of the guide vane 8.

[0052] In the above embodiments, as a preferred embodiment, the outer wall of the guide vane 8 is covered with an insulation layer, which is filled with down material. The insulation layer ensures that the guide vane 8 will not cool down due to direct exposure to the airflow after the angle is adjusted, thus ensuring a stable temperature around the guide vane 8 and preventing the insulation effect from being affected by excessively low temperatures.

[0053] In the above embodiment, as a preferred embodiment, the manifold 15 is inclinedly disposed on the inner surface of the inner material layer 2 and connected to the bottom of the guide channel 5. The surface of the manifold 15 is provided with a plurality of guide grooves 16, which are evenly distributed along the width direction of the manifold 15. The depth of the guide grooves 16 is one-third of the thickness of the manifold 15, and the width of the guide grooves 16 is half the width of the manifold 15. The inclined arrangement of the manifold 15 can guide the hot airflow to flow to the bottom of the guide channel 5, and the arrangement of the guide grooves 16 can increase the contact area between the airflow and the manifold 15, thereby improving the heat exchange efficiency.

[0054] In the above embodiments, as a preferred embodiment, a fixing seam is provided between the outer fabric layer 1 and the lining layer 2. The fixing seam is distributed in a grid pattern and divides the down interlayer 3 into multiple independent cavities. Each independent cavity is filled with down filling material, and the independent cavities are isolated from each other by the fixing seam. The grid-like distribution of the fixing seam can effectively prevent the down filling material from shifting and agglomerating during wearing, ensuring the uniformity of the overall warmth retention performance of the down jacket.

[0055] In this invention, the working steps of the down jacket with a back heat dissipation and airflow guiding structure are as follows: First, the heat generated by the wearer's body accumulates in the area corresponding to the shoulder blades on the back, and the heat is transferred through the lining layer 2 to the inside of the down filling layer 3. When the heat accumulates to a certain level, the hot airflow enters the bottom of the guide channel 5 and flows upward along the guide channel 5. During the flow, the hot airflow encounters the inclined guide vanes 8, which guide the hot airflow, causing it to move upward along a specific path. After being guided by the guide vanes 8, the hot airflow enters the middle position of the guide channel 5. At this time, the windproof curtain 14 flips upward and opens under the action of internal air pressure, and the hot airflow is discharged to the external environment through the vent 13. The manifold 15 performs secondary diversion of the discharged heat, and multiple diversion grooves 16 increase the heat exchange area and improve heat dissipation efficiency.

[0056] Secondly, when it is necessary to adjust the heat dissipation, the wearer pulls the adjustment rope 9, which causes the guide vane 8 to rotate around the axis, changing the tilt angle of the guide vane 8. The change in the angle of the guide vane 8 can adjust the flow speed and direction of the hot air in the guide channel 5, thereby controlling the amount of heat dissipation. After adjusting to the appropriate angle, the teeth on the adjustment rope 9 engage with the slots in the adjustment buckle 10 to achieve position locking.

[0057] Then, when the external ambient temperature is low or the wind is strong, the windproof curtain 14 naturally falls down under the action of gravity, covering the vent 13 again and preventing cold air from entering the body through the airflow channel 5. The heat insulation layer 11 prevents heat from being lost unexpectedly through the inner wall of the airflow channel 5, maintaining the warmth of the down jacket. The windproof cover 12 covers the vent 13 to prevent rainwater from falling directly in.

[0058] Finally, when increased insulation is needed, pull the adjusting rope 9 in the opposite direction to bring the guide vane 8 closer to a horizontal angle. This restricts the flow of hot air within the guide channel 5, reducing heat loss and enhancing insulation. The locking engagement of the locking teeth and slots maintains the adjusted state, ensuring the continuity of the insulation effect.

[0059] This down jacket with a back heat dissipation structure effectively solves the technical problems of excessive heat loss or cold air intrusion caused by existing heat dissipation designs through the synergistic action of the heat dissipation guiding mechanism 4, balancing warmth and heat dissipation comfort. The heat dissipation guiding mechanism 4 is located in the area corresponding to the shoulder blades, enabling targeted heat dissipation to the main heat-generating areas of the back. The coordinated design of the guide plate assembly 6 and the adjustment mechanism 7 allows the wearer to flexibly adjust the heat dissipation according to actual needs, freely switching between warmth and heat dissipation. The coordinated design of the windproof cover 12 and the windproof curtain 14 effectively prevents cold air from entering while ensuring heat dissipation. The insulation layer 11 further improves the insulation effect and prevents unexpected heat loss. The grid distribution of the fixed seams ensures the even distribution of the down filling, maintaining overall warmth performance.

[0060] In the description of this invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, in the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0061] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A down jacket with a back heat dissipation and airflow guiding structure, characterized in that: It includes a fabric layer (1), a lining layer (2), a down interlayer (3), and a heat dissipation and heat conduction mechanism (4), wherein: The heat dissipation and airflow guiding mechanism (4) includes an airflow guiding channel (5), a guide plate assembly (6), and an adjustment mechanism (7). The airflow guiding channel (5) is located inside the down interlayer (3) between the fabric layer (1) and the lining layer (2). The guide plate assembly (6) is located on the inner wall of the airflow guiding channel (5) and is inclined. The adjustment mechanism (7) is connected to the guide plate assembly (6) and is used to change the angle of the guide plate assembly (6) to adjust the heat dissipation. The guide plate assembly (6) includes multiple guide blades (8), which are rotatably connected to the inner wall of the flow channel (5). One end of each guide blade (8) extends into the interior of the flow channel (5), and the other end is linked with the adjustment mechanism (7). The adjustment mechanism (7) includes an adjustment rope (9) and an adjustment buckle (10). One end of the adjustment rope (9) is fixedly connected to the bottom of the guide vane (8), and the adjustment buckle (10) is fixedly connected to the outer wall of the fabric layer (1) and connected to the other end of the adjustment rope (9).

2. The down jacket with a back heat dissipation and airflow guiding structure according to claim 1, characterized in that: The flow channel (5) is provided through the thickness direction of the down interlayer (3). The top of the flow channel (5) is connected to the outer surface of the fabric layer (1), and the bottom of the flow channel (5) is connected to the inner surface of the lining layer (2).

3. The down jacket with a back heat dissipation and airflow guiding structure according to claim 1, characterized in that: Multiple guide vanes (8) are evenly distributed along the length of the flow channel (5), and each guide vane (8) is rotatably connected to the inner wall of the flow channel (5) via a rotating shaft.

4. The down jacket with a back heat dissipation and airflow guiding structure according to claim 1, characterized in that: The inner wall of the flow channel (5) is fixedly connected with a heat insulation sleeve (11), which fills the gap between the guide vane (8) and the inner wall of the flow channel (5).

5. The down jacket with a back heat dissipation and airflow guiding structure according to claim 4, characterized in that: The heat insulation layer (11) is made of polyester fiber material, and the thickness of the heat insulation layer (11) is half the thickness of the fabric layer (1).

6. The down jacket with a back heat dissipation and airflow guiding structure according to claim 1, characterized in that: The fabric layer (1) includes an outer fabric and a protective layer. The outer fabric has a protective layer on its inner side, and the protective layer is made of windproof and waterproof fabric. The lining layer (2) includes an inner fabric and a comfort layer. The inner fabric has a comfort layer on its outer side, and the comfort layer is made of skin-friendly fabric.

7. The down jacket with a back heat dissipation and airflow guiding structure according to claim 1, characterized in that: The top of the flow channel (5) is provided with a windproof cover plate (12), which is fixedly connected to the outer wall of the fabric layer (1). A ventilation port (13) is opened in the middle of the windproof cover plate (12). A windproof curtain (14) is fixedly connected to the inner wall of the windproof cover plate (12). The windproof curtain (14) is made of flexible material and hangs down naturally to cover the area below the ventilation port (13).

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