Hand warming bag

Abstract

The utility model discloses a hand warming bag which comprises a first pad body and a second pad body, the second pad body is connected to the surface of one side of the first pad body; the heating sheet is arranged on the first pad body or in the first pad body; the electric control module is arranged on the first pad body and / or the second pad body and is connected with the heating piece through a wire; the second pad body is connected with the first pad body at an interval, and the second pad body has a bending extension margin between two adjacent connecting positions along the bending direction of the first pad body. Due to the connection mode between the first pad body and the second pad body and the arrangement of the bending extension allowance of the second pad body, when the pad bodies of the hand warming bag are bent, the bending extension allowance of the second pad body can be gradually stretched. And the bending process of the second pad body is evolved into the bending extension allowance stretching process, so that the bending stress of the second pad body during bending is greatly reduced.

Description

Technical Field

[0001] This application relates to the field of heating, and more particularly to a hand warmer. Background Technology

[0002] In cold environments, people need to wrap exposed parts of their bodies to keep warm. The head, torso, and feet can be insulated with hats, clothes, trousers, and socks. However, the hands, as the most flexible and vital organ of the human body, cannot be kept warm for extended periods due to frequent use and complex environments. Therefore, an application that can provide timely hand warming has emerged.

[0003] In the prior art, an electrically heated hand warmer is provided, in which a heating device is installed inside the hand warmer. After the heating device generates heat, the heat is transmitted to the outer surface of the hand warmer to heat the hands. Hand warmers generally consist of a heating structure and a heat-insulating structure, with the heating structure typically located inside the heat-insulating structure. The inventors of this invention discovered in their research that the padding body of existing hand warmers is usually a one-piece structure. When the padding body is rolled up, the bending path on the outer surface of the padding body is longer than that on the inner surface, but the upper and lower surfaces of the padding body are designed to be of equal length. This causes the outer surface of the padding body to be taut and under excessive stress when the padding body is bent, which in turn compresses the internal filling, causing wrinkles on the inner surface of the padding body, affecting the user experience. Utility Model Content

[0004] The purpose of this application is to provide a hand warmer that can reduce the bending stress on the outer surface of the pad.

[0005] This application provides a hand warmer bag, including:

[0006] First cushion;

[0007] The second pad is connected to one side surface of the first pad;

[0008] A heating element, wherein the heating element is disposed on or inside the first pad;

[0009] An electronic control module is disposed on the first pad and / or the second pad and is connected to the heating element via a wire.

[0010] The second pad is connected to the first pad at a distance, and along the bending direction of the first pad, the second pad has a bending extension allowance between two adjacent connection positions.

[0011] Optionally, the second pad includes a plurality of strip-shaped pads, which are arranged sequentially at intervals on one side surface of the first pad. Each of the plurality of strip-shaped pads is connected to the first pad at intervals, and there is a bending extension allowance between two adjacent connection positions in each strip-shaped pad.

[0012] Optionally, the connection positions of two adjacent strip-shaped pads to the first pad are staggered.

[0013] Optionally, the first pad includes:

[0014] Sleeve;

[0015] A down filling pad is disposed within the sleeve body, and a heating element is disposed between the sleeve body and the down filling pad;

[0016] The edges of the sleeve and the down filling pad are connected and fixed.

[0017] Optionally, the first pad further includes: a lining layer, the lining layer being disposed between the down filling pad and the sleeve, the heating element being disposed between the lining layer and the down filling pad, and the edges of the sleeve, the down filling pad, and the lining layer being connected and fixed.

[0018] Optionally, the heating element is connected to the lining layer; and / or,

[0019] The down pad has an opening for the wire to pass through.

[0020] Optionally, the lining layer includes a napped side and a smooth side, the napped side being disposed on the side facing the sleeve body, the smooth side being disposed on the side facing the down filling pad, and the heating element being fixed on the smooth side.

[0021] Optionally, a storage space is provided between the first pad and the second pad, and a power supply line is provided in the storage space, which is connected to the electronic control module.

[0022] Optionally, the hand warmer bag further includes a battery assembly, one end of the power supply line is connected to the electronic control module, the other end of the power supply line is connected to the battery assembly, and the battery assembly is disposed within the storage space.

[0023] Optionally, the power supply line is provided with a female connector, the battery assembly is provided with a plug interface that mates with the female connector, a cap is connected to the power supply line, and the female connector is plugged into the cap.

[0024] The beneficial effects of this application embodiment are as follows: the hand warmer pad is configured as a first pad and a second pad, with the second pad connected to the first pad at intervals. Along the bending direction of the first pad, the second pad has a bending extension allowance between two adjacent connection points. The connection method between the first and second pads, and the setting of the bending extension allowance of the second pad, allow the bending extension allowance of the second pad to gradually expand when the hand warmer pad is bent. This transforms the bending process of the second pad into a process of expanding the bending extension allowance, greatly reducing the bending stress during bending. Consequently, the surface of the second pad is fluffy, preventing significant compression of the filling material inside the pad and avoiding wrinkles caused by pressure deformation inside the first pad, thus improving the user experience. Simultaneously, the hand warmer contains a heating element. The heat from the heating element accumulates inside the hand warmer. If the heat cannot dissipate for a long time, it can cause localized overheating of the hand warmer, potentially igniting it. The second pad is connected to the first pad at intervals, creating an overall insulation structure with different thicknesses. The thinner areas are where the first and second pads connect or are sandwiched, providing good heat dissipation; the thicker areas are where the first and second pads overlap, providing good insulation. This structure prevents heat from accumulating inside the hand warmer, achieving a good balance between insulation and heat dissipation, greatly improving the safety of the hand warmer. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0026] Figure 1 This is a schematic diagram of the overall structure of a hand warmer bag according to a specific embodiment of this application;

[0027] Figure 2 This is an exploded view of the first pad body according to a specific embodiment of this application;

[0028] Figure 3 This is a schematic diagram of the electronic control module and battery assembly structure according to a specific embodiment of this application.

[0029] Figure descriptions: 1. First pad; 11. Cover; 12. Down filling pad; 13. Lining layer; 131. Down surface; 132. Smooth surface; 2. Second pad; 21. Strip pad; 3. Heating element; 4. Electrical control module; 5. Power supply line; 51. Plug-in female connector; 52. Cap; 6. Battery assembly; 61. Plug-in interface; 7. Locking structure; 8. Storage space. Detailed Implementation

[0030] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0032] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the overall structure of the hand warmer bag in this embodiment; Figure 2 This is an exploded view of the first pad in this embodiment.

[0033] like Figure 1 and Figure 2 As shown, a hand warmer includes: a first pad 1, a second pad 2, the second pad 2 being connected to one side surface of the first pad 1; a heating element 3, the heating element 3 being disposed on or inside the first pad 1; an electronic control module 4, the electronic control module 4 being disposed on the first pad 1 and / or the second pad 2, and connected to the heating element 3 via a wire; the second pad 2 being spaced apart from the first pad 1, and along the bending direction of the first pad 1, the second pad 2 having a bending extension allowance between two adjacent connection positions.

[0034] In this embodiment, the first pad 1 is designed to be square. However, the shape of the first pad 1 is not limited to this. Depending on the specific application scenario, in some embodiments, the shape of the first pad 1 can be circular, elliptical, triangular, running track shaped, etc.

[0035] In this embodiment, the second pad 2 is a plurality of strip-shaped pads 21. However, the structure of the second pad 2 is not limited to this. Depending on the specific application scenario, in some embodiments, the second pad 2 can be (but is not limited to): a plurality of annular pads, a plurality of independently arranged block pads, or sheet pads, etc.

[0036] In this embodiment, the first pad 1 and the second pad 2 are connected by sewing with needle and thread. However, the connection method of the first pad 1 and the second pad 2 is not limited to this. Depending on the specific application scenario, in some embodiments, the connection method of the first pad 1 and the second pad 2 can be (but is not limited to): adhesive bonding, heat pressing fusion, or zipper connection.

[0037] In this embodiment, the first pad 1 is a heating pad, and the second pad 2 is a heat-insulating pad. The first pad 1 and the second pad 2 are connected to each other. The first pad 1 and the second pad 2 are distinguished by having independent sleeves 11, and the internal structures of the first pad 1 and the second pad 2 are respectively encapsulated within their respective sleeves 11. However, the method of distinguishing the first pad 1 and the second pad 2 is not limited to this. In some embodiments, the first pad 1 and the second pad 2 can share a single sleeve 11. Within the same sleeve 11, the first pad 1 and the second pad 2 have different functional areas. The first pad 1 is used to house the heating element 3 for heating and heat preservation, while the second pad 2 is used to improve the heat preservation effect.

[0038] In this embodiment, the two opposite ends of the first pad 1 or the first pad 1 and the second pad 2 are connected to each other. The connection method can be a fixed connection or a detachable connection. The fixed connection method includes sewing, screw connection, or riveting. The detachable connection includes one or more composite connection structures selected from zippers, Velcro, magnetic closures, and buckles.

[0039] In this embodiment, the heating element 3 is a graphene heating element 3. However, the material of the heating element 3 is not limited. Depending on the specific application scenario, in some embodiments, the heating element 3 can be (but is not limited to): silicone heating element 3, metal heating film circuit, nickel-chromium alloy heating wire, and silicone rubber high-temperature insulating cloth or PET material.

[0040] In this embodiment, the heating element 3 is square or rectangular. However, the shape of the heating element 3 is not limited to this. Depending on the specific application scenario, in some embodiments, the shape of the heating element 3 can be (but is not limited to): circle, ellipse, pentagon or other polygon.

[0041] In this embodiment, the number of heating elements 3 is 1. However, the number of heating elements 3 is not limited to this. Depending on the specific application scenario, in some embodiments, the number of heating elements 3 can be 2, 3, 4 or more.

[0042] The heating element 3 is disposed inside the first pad 1. However, the placement of the heating element 3 is not limited to this. Depending on the specific application scenario, in some embodiments, the heating element 3 can be disposed on the outer surface of the first pad 1, or a notch can be made on the surface of the first pad 1, and the heating element 3 can be disposed in the notch.

[0043] In this embodiment, one end of the electronic control module 4 is inserted into the second pad 2, and the other end extends out of the second pad 2. The end of the electronic control module 4 inserted into the second pad 2 is connected to the first pad 1. However, the connection method between the electronic control module 4 and the pad is not limited to this. Depending on the specific application scenario, in some embodiments, the electronic control module 4 can be disposed on the surface of the second pad 2.

[0044] In this embodiment, the bending extension allowance refers to the redundancy in the length of the second pad 2 between the two connection positions, and the redundant structure can stretch as the hand warmer pad bends.

[0045] In this embodiment, the hand warmer refers to a clamping structure formed by bending the first pad 1 and the second pad 2. In some embodiments, in order to maintain the clamping structure of the first pad 1 and the second pad 2, a locking structure 7 is provided on the first pad 1. The locking structure 7 can be a detachable structure such as a zipper, Velcro, magnetic structure, buckle, or button.

[0046] In the above embodiment, the hand warmer's pad is configured as a first pad 1 and a second pad 2, with the second pad 2 connected to the first pad 1 at intervals. Along the bending direction of the first pad 1, the second pad 2 has a bending extension allowance between two adjacent connection points. The connection method between the first pad 1 and the second pad 2, and the setting of the bending extension allowance of the second pad 2, allow the bending extension allowance of the second pad 2 to gradually expand when the hand warmer's pad is bent. By transforming the bending process of the second pad 2 into a process of expanding the bending extension allowance, the bending stress during bending of the second pad 2 is greatly reduced. This results in a fluffy surface for the second pad 2, preventing excessive compression of the filling material inside the pad and avoiding wrinkles caused by pressure deformation inside the first pad 1, thus improving the user experience. Simultaneously, the hand warmer contains a heating element. The heat from the heating element inside the hand warmer will accumulate inside the hand warmer. If the heat cannot dissipate for a long time, it will cause the local temperature of the hand warmer to become too high, potentially igniting the hand warmer. The second pad 2 is connected to the first pad 1 at intervals, so that the first pad 1 and the second pad 2 together form a heat-insulating structure with different thicknesses. The thinner areas are where the first pad 1 and the second pad 2 are connected or sandwiched, with good heat dissipation; the thicker areas are where the first pad 1 and the second pad 2 are superimposed, with good heat retention. This structure can prevent heat from accumulating inside the hand warmer, achieving a good balance between heat retention and heat dissipation, and greatly improving the safety of the hand warmer.

[0047] In some embodiments, the second pad 2 includes a plurality of strip pads 21, which are arranged sequentially at intervals on one side surface of the first pad 1. Each strip pad 21 is connected to the first pad 1 at intervals, and there is a bending extension allowance between two adjacent connection positions in each strip pad 21.

[0048] The second pad 2 includes four strip-shaped pads 21. However, the number of strip-shaped pads 21 is not limited to this. Depending on the specific application scenario, in some embodiments, the number of strip-shaped pads 21 can be two, three, five, or more.

[0049] The strip-shaped pads 21 are arranged at intervals, with gaps between adjacent pads. The size of the gaps can be adjusted according to environmental needs and is not limited here.

[0050] There are 5 connection points between each strip-shaped pad 21 and the first pad 1. However, the number of connection points is not limited to this. Depending on the specific application scenario, in some embodiments, the number of connection points can be 2, 3, 4, 6 or more.

[0051] The connection position between the strip-shaped pad 21 and the first pad 1 is perpendicular to the extension direction of the strip-shaped pad 21, or it is inclined.

[0052] The strip-shaped pad 21 is connected to the first pad 1 by sewing. However, the connection method is not limited to this. Depending on the specific application scenario, in some embodiments, the connection method is (not limited to): adhesive bonding, heat pressing fusion, button, etc.

[0053] The strip-shaped pads 21 are arranged at intervals, with the space between adjacent strip-shaped pads 21 exposing the first pad 1. The exposed areas of the first pad 1 serve as effective heat dissipation channels, preventing excessive heat buildup inside the hand warmer. The overlapping areas of the strip-shaped pads 21 and the first pad 1 provide good insulation, further balancing the heat dissipation and insulation effects of the hand warmer and improving its safety. Simultaneously, when users use the hand warmer, their hand positions inside the hand warmer vary, resulting in different space requirements. The interval arrangement of the strip-shaped pads 21 prevents the internal stress from being transmitted to other strip-shaped pads 21 when subjected to varying hand expansion forces, thus avoiding the transfer of force from one area to another and causing poor spatial comfort for the user in other areas.

[0054] In some embodiments, the connection positions of adjacent strip-shaped pads 21 to the first pad 1 are staggered. It should be noted that in this embodiment, staggered positions refer to the connection positions between the two ends of adjacent strip-shaped pads 21 being staggered, while the connection positions at the two ends are not staggered. For example, each strip-shaped pad 21 has 5 connection positions; the connection positions at the two ends are not staggered with their adjacent strip-shaped pads 21, only the three middle connection positions are staggered with their adjacent strip-shaped pads 21. This example is used to better explain the content of this solution and does not constitute the sole limitation on specific embodiments.

[0055] The connection point between the strip-shaped pad 21 and the first pad 1 on the hand warmer is the most prone to bending, and the internal stress generated by bending at the connection point is minimal. The staggered connection points of adjacent strip-shaped pads 21 with the first pad 1 can evenly distribute the bending stress on the surface of the hand warmer pad, preventing situations where the bending stress is too weak in some areas and too strong in others due to the absence of connection points, making the pad difficult to bend.

[0056] In some embodiments, the first pad 1 includes: a sleeve 11; a down-filled pad 12 disposed inside the sleeve 11; and a heating element 3 disposed between the sleeve 11 and the down-filled pad 12; the edges of the sleeve 11 and the down-filled pad 12 are connected and fixed.

[0057] In this embodiment, the sleeve 11 refers to a structure that can connect the internal structure of the first pad 1 with the second pad 2. Therefore, the sleeve 11 can be a structure that wraps around the entire body, or it can be a single piece of fabric that has a lower surface but no upper surface.

[0058] The strip-shaped pad 21 of the second pad 2 is connected to one side surface of the sleeve 11. When the sleeve 11 is a fully wrapped structure, the strip-shaped pad 21 of the second pad 2 is connected to the sleeve 11; when the sleeve 11 is a single piece of fabric, the strip-shaped pad 21 of the second pad 2 is connected to the down filling pad 12.

[0059] In this embodiment, the down-filled pad 12 is a down pad. However, the material inside the down-filled pad 12 is not limited to this. Depending on the specific application scenario, the down-filled pad 12 can be (but is not limited to): cotton pads, animal hair pads, polyester fiber pads, silk pads, lyocell pads, PP cotton pads, and other soft and fluffy materials.

[0060] In this embodiment, the heating element 3 being positioned between the sleeve 11 and the down filling pad 12 refers to the spatial relationship between the heating element 3 and the sleeve 11 and the down filling pad 12, rather than the connection relationship of the heating element 3. The heating element 3 can be clamped between the sleeve 11 and the down filling pad 12, can be connected to the inner surface of the sleeve 11, can be connected to the down filling pad 12, or can be connected to other attachable objects positioned between the sleeve 11 and the down filling pad 12. The above connection methods can be selected according to the specific application scenario requirements and are not limited here.

[0061] The edges of the sleeve 11 and the down filling pad 12 are connected and fixed by sewing. However, the connection method between the sleeve 11 and the down filling pad 12 is not limited to this. Depending on the specific application scenario, in some embodiments, the connection method between the sleeve 11 and the down filling pad 12 can also be (not limited to): adhesive bonding, heat pressing fusion, zipper, etc.

[0062] A down-filled pad 12 is placed inside the first pad body 1, and a heating element is placed between the down-filled pad 12 and the cover body 11. The down-filled pad 12 can play a good role in absorbing heat and keeping warm. The combination of the down-filled pad 12 and the second pad body 2 can achieve a balance between the heat preservation and heat dissipation effects of the hand warmer.

[0063] In some embodiments, the first pad 1 further includes: a lining layer 13, which is disposed between the down filling pad 12 and the sleeve 11; a heating element 3 is disposed between the lining layer 13 and the down filling pad 12; and the edges of the sleeve 11, the down filling pad 12, and the lining layer 13 are connected and fixed.

[0064] In this embodiment, the lining layer 13 is made of fleece. However, the material of the lining layer 13 is not limited to this. Depending on the specific application scenario, the lining layer 13 can also be any fabric or a heat-absorbing silicone layer.

[0065] In this embodiment, the heating element 3 being positioned between the lining layer 13 and the down filling pad 12 refers to the spatial relationship between the heating element 3 and the lining layer 13 and the down filling pad 12, rather than the connection relationship of the heating element 3. The heating element 3 can be clamped between the lining layer 13 and the down filling pad 12, can be connected to the inner surface of the lining layer 13, can be connected to the down filling pad 12, or can be connected to other attachable materials positioned between the lining layer 13 and the down filling pad 12. These connection methods can be selected according to the specific application requirements and are not limited here.

[0066] The edges of the sleeve 11, the lining layer 13, and the down filling pad 12 are connected and fixed by sewing. However, the connection method of the sleeve 11, the lining layer 13, and the down filling pad 12 is not limited to this. Depending on the specific application scenario, in some embodiments, the connection method of the lining layer 13 and the down filling pad 12 can also be (not limited to): adhesive bonding, heat pressing fusion, zipper, etc.

[0067] A lining layer 13 is provided inside the first pad 1, and the heating element is placed between the lining layer 13 and the down filling pad 12. The lining layer 13 increases the distance between the surface of the sleeve 11 and the heating element 3, preventing the user from directly touching the heating element 3 through the sleeve 11, reducing the feeling of foreign objects during use, and improving the safety of the hand warmer. At the same time, the lining layer 13 can also increase the warmth retention of the side of the hand warmer near the hand, preventing the internal temperature of the hand warmer from losing too much heat.

[0068] In some embodiments, the heating element 3 is connected to the lining layer 13. The heating element 3 is connected to the lining layer 13 by sewing. However, the connection method between the heating element 3 and the lining layer 13 is not limited to this. Depending on the specific application scenario, in some embodiments, the heating element 3 can be connected to the lining layer 13 by (but not limited to): adhesive, heat pressing, buttons, zippers, etc.

[0069] The heating element 3 is connected to the lining layer 13, so that the position of the heating element 3 within the first pad 1 is relatively fixed, and the fixed position of the heat source improves the user experience.

[0070] In some embodiments, the down filling pad 12 has an opening for the wire to pass through. This opening prevents the wire from passing through the edge of the down filling pad 12, improving the efficiency and strength of the stitching connection of the edge of the first pad body 1. Simultaneously, the opening also helps to save wire length.

[0071] In some embodiments, the lining layer 13 includes a napped surface 131 and a smooth surface 132, with the napped surface 131 disposed on the side facing the sleeve body 11 and the smooth surface 132 disposed on the side facing the down filling pad 12, and the heating element 3 fixed on the smooth surface 132.

[0072] Compared to the smooth surface 132, the napped side 131 of the lining layer 13 has the following characteristics: poorer thermal conductivity, higher thermal resistance, and better warmth retention. Compared to the napped side 131, the smooth surface 132 of the lining layer 13 has the following characteristics: better thermal conductivity, lower thermal resistance, and poorer warmth retention.

[0073] The heating element 3 is fixed to the smooth surface 132. The smooth surface 132 has good thermal conductivity, which can conduct the heat generated by the heating element 3 to other parts of the lining layer 13, increasing the heat conduction area of ​​the lining layer 13. The fleece surface 131, due to its good heat absorption and insulation effect, can absorb the heat conducted by the smooth surface 132. Its high thermal resistance can reduce the rate of heat loss and extend the heat retention time of the hand warmer. At the same time, the fleece surface 131 has good water absorption. When not in use, it can absorb more water molecules from the air. The absorbed water molecules evaporate again under the heating of the heating element 3, increasing the humidity inside the hand warmer, improving the user's comfort when using the hand warmer, maintaining the humidity of the user's hands, and improving the user experience.

[0074] In some embodiments, a storage space 8 is provided between the first pad 1 and the second pad 2, and a power supply line 5 is provided in the storage space 8, which is connected to the electronic control module 4.

[0075] In this embodiment, the power supply line 5 is a USB line. However, the type of power supply line 5 is not limited to this. Depending on the specific application scenario, in some embodiments, the power supply line 5 is a line with a pin header, a two-prong plug, or a three-prong plug.

[0076] In this embodiment, the storage space 8 is an independent space set within the pad body, constructed in the shape of a pocket, and the storage space 8 has an opening on the pad body. However, the structure of the storage space 8 is not limited to this; in some embodiments, the storage space 8 is an interlayer space set within the pad body.

[0077] A storage space 8 is provided on the pad of the hand warmer, which is connected to the external environment. The power supply line 5 is placed inside the storage space 8. When needed, the power supply line 5 is removed from the storage space 8, and when finished or when storage is required, it is placed back into the storage space 8. This avoids long-term exposure of the power supply line 5, which could lead to damage. At the same time, this structure allows users to place the power supply line 5 back into the storage space 8 when washing the hand warmer, preventing frequent scratches that could cause short circuits or damage.

[0078] In some embodiments, the hand warmer also includes a battery assembly 6, one end of a power supply line 5 is connected to an electronic control module 4, the other end of a power supply line 5 is connected to the battery assembly 6, and the battery assembly 6 is disposed within a storage space 8.

[0079] Battery assembly 6 is a power bank; however, the structure of battery assembly 6 is not limited to this. Depending on the specific application scenario, in some implementations, battery assembly 6 can be (but is not limited to): a single battery, or a battery box formed by combining two or more batteries.

[0080] The power supply line 5 and battery assembly 6 are housed within the storage space 8. Users can place the battery assembly 6 within the storage space 8 during use, and remove it when not in use, when charging is needed, or when the hand warmer needs cleaning. This allows the hand warmer to be used in multiple scenarios: without the battery assembly 6, it can be used as a lightweight warming device; with the battery assembly 6 inside, it can be used as a heating tool. Removing the battery assembly 6 when not in use significantly reduces the weight of the hand warmer, making it a lighter and more convenient option for users. Furthermore, the detachable battery assembly 6 allows for easy cleaning, avoiding the drawbacks of existing hand warmers where the battery assembly 6 is non-removable and therefore cannot be cleaned, greatly increasing the number of times the hand warmer can be reused.

[0081] In some embodiments, a plug-in female socket 51 is provided on the power supply line 5, and a plug interface 61 that mates with the plug-in female socket 51 is provided on the battery assembly 6. A buckle 52 is connected to the power supply line 5, and the plug-in female socket 51 and the buckle 52 are plugged in and connected.

[0082] In this embodiment, the connection between the buckle 52 and the female connector 51 is such that the female connector 51 is inserted into the buckle 52. However, the connection between the buckle 52 and the female connector 51 is not limited to this. Depending on the specific application scenario, in some embodiments, the buckle 52 can be inserted into the female connector 51.

[0083] The cap 52 allows users to connect the cap 52 and the connector 51 when the hand warmer is not in use, preventing dust from entering the connector 51 and protecting it. Simultaneously, the cap 52 also makes the connector 51 waterproof. When washing the hand warmer, users can connect the cap 52 and the connector 51 to prevent water from entering the connector 51 and causing a short circuit. The cap 52 design enables the hand warmer to be washed, effectively cleaning it and extending its lifespan, reducing bacterial buildup and benefiting user health.

[0084] It should be noted that any of the embodiments in this example can be implemented independently or in combination with one or more other embodiments. When implementing in combination, the combination method should not be limited to the combination methods listed in this example.

[0085] It should be noted that while preferred embodiments of this application are provided in the specification and accompanying drawings, this application can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this application; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this application. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A hand warmer bag, characterized by, include: First cushion; The second pad is connected to one side surface of the first pad; A heating element, wherein the heating element is disposed on or inside the first pad; An electronic control module is disposed on the first pad and / or the second pad and is connected to the heating element via a wire. The second pad is connected to the first pad at a distance, and along the bending direction of the first pad, the second pad has a bending extension allowance between two adjacent connection positions.

2. The hand warmer pack of claim 1, wherein The second pad includes a plurality of strip-shaped pads, which are arranged sequentially and at intervals on one side surface of the first pad. Each of the plurality of strip-shaped pads is connected to the first pad at intervals, and there is a bending extension allowance between two adjacent connection positions in each strip-shaped pad.

3. The hand warmer packet of claim 2, wherein, The connection positions of two adjacent strip-shaped pads to the first pad are staggered.

4. The hand warmer packet of claim 1, wherein The first pad includes: Sleeve; A down filling pad is disposed within the sleeve body, and a heating element is disposed between the sleeve body and the down filling pad; The edges of the sleeve and the down filling pad are connected and fixed.

5. The hand warmer packet of claim 4, wherein, The first pad further includes: a lining layer, the lining layer being disposed between the down filling pad and the sleeve, the heating element being disposed between the lining layer and the down filling pad, and the edges of the sleeve, the down filling pad and the lining layer being connected and fixed.

6. The hand warmer packet of claim 5, wherein, The heating element is connected to the lining layer; and / or, The down pad has an opening for the wire to pass through.

7. The hand warmer packet of claim 5, wherein, The lining layer includes a napped surface and a smooth surface, the napped surface being disposed on the side facing the sleeve body, the smooth surface being disposed on the side facing the down filling pad, and the heating element being fixed on the smooth surface.

8. The hand warmer packet of claim 1, wherein, A storage space is provided between the first pad and the second pad, and a power supply line is provided in the storage space, which is connected to the electronic control module.

9. The hand warmer pack of claim 8, wherein, The hand warmer also includes a battery assembly, one end of the power supply line is connected to the electronic control module, the other end of the power supply line is connected to the battery assembly, and the battery assembly is disposed in the storage space.

10. The hand warmer pack of claim 9, wherein, The power supply line is provided with a female connector, the battery assembly has a plug interface that mates with the female connector, and a cap is connected to the power supply line, the female connector and the cap are plugged in and connected.

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