Hand warming bag

Abstract

The utility model discloses a hand warming bag, which comprises a cushion body, a heating element, a first heating element and a second heating element, and is characterized in that the cushion body is folded and bent to form a sleeve with a first accommodating space; the first locking structure is arranged on the cushion body and is used for keeping the shape of the sleeve; the heating sheet is arranged on the pad body or in the pad body so as to increase the temperature of the pad body or increase the temperature of the accommodating space; the electric control module is arranged on the pad body and is connected with the heating piece through a wire; the power supply circuit is connected with the electric control module, and a second containing space used for containing the power supply circuit and communicating with the external environment is formed in the pad body. And the power supply circuit is arranged in the second accommodating space. The power supply line is taken out from the second storage space when the power supply line needs to be used, and the power supply line is put back into the second storage space when the power supply line is used or needs to be stored. Damage caused by long-term leakage of the power supply line is avoided.

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 heats up, the heat is transmitted to the outer surface of the hand warmer to heat the hands. However, the inventors of this invention discovered in their research that in the prior art, the power supply line used to power the heating device of the hand warmer is exposed outside the hand warmer, which not only affects the appearance, but the exposed power supply line is also easily damaged by external force during use or washing. Utility Model Content

[0004] The purpose of this application is to provide a hand warmer that can accommodate power supply lines.

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

[0006] A cushion body, wherein the cushion body is folded and bent to form a sleeve having a first storage space;

[0007] A first locking structure is disposed on the pad body to maintain the shape of the sleeve;

[0008] A heating element is disposed on or inside the pad to increase the temperature of the pad or the storage space.

[0009] An electronic control module is disposed on the pad and connected to the heating element via a wire;

[0010] A power supply line is provided, which is connected to the electronic control module. The pad body has a second storage space for storing the power supply line and connecting it to the external environment.

[0011] Optionally, the pad further includes: a battery assembly, one end of the power supply line being connected to the electronic control module, the other end of the power supply line being connected to the battery assembly, the battery assembly being disposed within the second storage space, and the battery assembly being detachably connected to the power supply line; and / or,

[0012] The pad body includes: a sleeve;

[0013] A heating pad is disposed within the body of the sleeve, and a heating element is disposed between the body of the sleeve and the heating pad.

[0014] The edges of the sleeve and the insulating pad are connected and fixed.

[0015] Optionally, the power supply line is provided with a female connector, and the battery assembly has a connector that mates with the female connector; and / or,

[0016] The first pad also includes: a lining layer, the lining layer being disposed between the insulating pad and the cover, the heating element being disposed between the lining layer and the insulating pad, and the edges of the cover, the insulating pad and the lining layer being connected and fixed.

[0017] Optionally, a cap is connected to the power supply line, and the plug-in female is plugged into the cap; and / or,

[0018] The lining layer includes a fleece side and a smooth side, the fleece side being disposed on the side facing the cover body, the smooth side being disposed on the side facing the heating pad, and the heating element being fixed on the smooth side.

[0019] Optionally, the buckle and the plug-in female are connected by an easily bendable structure, so that the buckle can be easily inserted into or separated from the plug-in female.

[0020] Optionally, the electronic control module includes: a housing and a PCB circuit board disposed within the housing, the housing being connected to the pad, and at least a portion of the structure of the housing being exposed on the surface of the pad, and the power supply line and the wires being connected to the PCB circuit board.

[0021] Optionally, the housing is injected with an adhesive used to encapsulate the PCB circuit board and the connection points between the PCB circuit board and the power supply lines and the wires; and / or,

[0022] A first stop ring is circumferentially arranged around the side of the housing, and the first stop ring is inserted into the pad body. A second stop ring is fitted onto the side of the housing that protrudes from the pad body, and the first and second stop rings are clamped onto the pad body; and / or

[0023] The pad has a hardened structure at the connection point with the shell to make the connection between the pad and the shell more stable.

[0024] Optionally, the hardening structure includes: compressing and curing the multilayer structure of the pad; and / or,

[0025] The hardening structure includes: a fixing ring disposed within the pad; and / or,

[0026] The hardened structure includes: the pad body embroidering an embroidered loop at the connection point with the shell; and / or...

[0027] The second stop ring is snapped into the exposed portion of the housing.

[0028] Optionally, the second storage space is formed on the side of the pad, and a second locking structure is provided at the opening of the second storage space, the second locking structure being used to open or close the second storage space.

[0029] Optionally, the pad has a filling material on the side of the second storage space facing the heating element.

[0030] The beneficial effects of this embodiment are as follows: A second storage space is provided on the pad of the hand warmer, and this second storage space can be connected to the external environment. The power supply line is placed inside the second storage space. When needed, the power supply line is taken out of the second storage space, and when finished or when it needs to be stored, the power supply line is put back into the second storage space. This avoids damage caused by long-term exposure of the power supply line. At the same time, this structure allows users to put the power supply line into the second storage space when washing the hand warmer, avoiding frequent scratches during washing that could lead to short circuits or damage. Attached Figure Description

[0031] 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:

[0032] Figure 1 This is a schematic diagram of the overall structure of a first form of a hand warmer according to a specific embodiment of this application;

[0033] Figure 2 This is an exploded view of a hand warmer bag according to a specific embodiment of this application;

[0034] Figure 3 This is a schematic diagram of the power supply line structure according to a specific embodiment of this application;

[0035] Figure 4 This is a schematic diagram of the overall structure of a second form of a hand warmer according to a specific embodiment of this application;

[0036] Figure 5 This is a partial perspective view of a hand warmer bag according to a specific embodiment of this application;

[0037] Figure 6 This is a schematic diagram of the electronic control module structure according to a specific embodiment of this application;

[0038] Figure 7This is an exploded view of the electronic control module according to a specific embodiment of this application.

[0039] Figure Descriptions: 1. Pad body; 11. First pad body; 111. Cover body; 112. Warming pad; 113. Lining layer; 113a. Fleece surface; 113b. Smooth surface; 12. Second pad body; 13. Second storage space; 131. Second locking structure; 14. Hardened structure; 141. Fixing ring; 2. First locking structure; 3. Heating element; 4. Electrical control module; 41. Housing; 411. First stop ring; 412. Second stop ring; 42. PCB circuit board; 5. Power supply line; 51. Plug-in female connector; 52. Buckle; 53. Flexible structure; 6. Battery assembly; 61. Plug-in interface. Detailed Implementation

[0040] 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.

[0041] 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.

[0042] Please see Figure 1-3 , Figure 1 This is a schematic diagram of the basic structure of the hand warmer bag in this embodiment; Figure 2 This is an exploded view of the hand warmer bag in this embodiment; Figure 3 This is a schematic diagram of the power supply line in this embodiment.

[0043] like Figure 1-3As shown, a hand warmer includes: a pad 1, which is folded and bent to form a sleeve (not shown) with a first storage space (not shown); a first locking structure 2, which is disposed on the pad 1 to maintain the shape of the sleeve; a heating element 3, which is disposed on or inside the pad 1 to raise the temperature of the pad 1 or the storage space; an electronic control module 4, which is disposed on the pad 1 and connected to the heating element 3 via a wire; and a power supply line 5, which is connected to the electronic control module 4. A second storage space 13 is provided on the pad 1 to house the power supply line 5 and connect to the external environment.

[0044] In this embodiment, the shape of the mat 1 is designed to be square. However, the shape of the mat 1 is not limited to this. Depending on the specific application scenario, in some embodiments, the shape of the mat 1 can be circular, elliptical, triangular, running track shaped, etc.

[0045] The cushion 1 includes filling material that supports the surface of the cushion to form a flat plane or a pillow shape that is thick in the middle and thin at the edges.

[0046] In this embodiment, the pad 1 is a double-layer pad 1, including: a first pad 11 and a second pad 12. The first pad 11 is a heating pad 1, and the second pad 12 is a heat-insulating pad 1. The first pad 11 and the second pad 12 are connected to each other. The first pad 11 and the second pad 12 are distinguished by having independent sleeves 111, and the internal structures of the first pad 11 and the second pad 12 are respectively encapsulated in their respective sleeves 111. However, the method of distinguishing the first pad 11 and the second pad 12 is not limited to this. In some embodiments, the first pad 11 and the second pad 12 can share a single sleeve 111. Within the same sleeve 111, the first pad 11 and the second pad 12 have different functional areas. The first pad 11 is used to house the heating element 3 for heating and heat preservation, while the second pad 12 is used to improve the heat preservation effect.

[0047] The structure of the pad 1 is not limited to a two-layer structure. Depending on the specific application scenario, in some implementations, the pad 1 can be a single-layer, three-layer, four-layer or more-layer structure.

[0048] In this embodiment, the first locking structure 2 is a zipper. The first locking structure 22 includes: a first toothed rack, a first zipper head connected to the first toothed rack, and a second toothed rack. The first toothed rack and the second toothed rack are respectively placed at opposite ends or near the ends of the pad body 1. The first toothed rack and the second toothed rack are engaged and connected through the first zipper head.

[0049] In some embodiments, the first locking structure 2 is a hook and loop fastener, which includes a hook side and a loop side. The hook and loop sides of the hook and loop fastener are detachably connected by hooks and loops.

[0050] In some embodiments, the first locking structure 2 is a magnetic attraction, wherein the first locking structure 2 includes a first magnetic attraction and a second magnetic attraction. The magnetic attraction is detachable and connected through magnetic coupling.

[0051] In some embodiments, the first locking structure 2 is a latch, which includes a female latch and a female latch. The female latch and the female latch are detachably connected by a physical locking mechanism.

[0052] In some embodiments, the first locking structure 2 is a composite structure. Specifically, the first locking structure 2 can be a composite structure of two or more connection methods selected from zippers, Velcro, magnetic closures, or buckles.

[0053] 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.

[0054] 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): circular, elliptical, pentagonal or other polygonal.

[0055] 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.

[0056] The heating element 3 is disposed inside the 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 pad 1, or a notch can be made on the surface of the pad 1, and the heating element 3 can be disposed in the notch.

[0057] In this embodiment, one end of the electronic control module 4 is inserted into the pad 1, and the other end extends out of the pad 1. However, the connection method between the electronic control module 4 and the pad 1 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 pad 1.

[0058] 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.

[0059] In this embodiment, the second storage space 13 is an independent space disposed within the pad body 1, configured as a pocket, and the second storage space 13 has an opening on the pad body 1. However, the structure of the second storage space 13 is not limited to this; in some embodiments, the second storage space 13 is an interlayer space disposed within the pad body 1.

[0060] In the above embodiment, a second storage space 13 is provided on the pad 1 of the hand warmer. The second storage space 13 is interconnected with the external environment, and the power supply line 5 is placed inside the second storage space 13. When needed, the power supply line 5 is removed from the second storage space 13, and when finished or when storage is required, the power supply line 5 is placed back into the second storage space 13. This avoids long-term exposure of the power supply line 5, which could lead to damage. Simultaneously, this structure allows the user to place the power supply line 5 into the second storage space 13 when washing the hand warmer, preventing frequent scratches during washing that could cause short circuits or damage.

[0061] Please see Figure 5 , Figure 5 This is a partial perspective view of the hand warmer bag in this embodiment.

[0062] like Figure 5 As shown, in some embodiments, the pad also includes a battery assembly 6, one end of the power supply line 5 is connected to the electronic control module 4, the other end of the power supply line 5 is connected to the battery assembly 6, the battery assembly 6 is disposed in the second storage space 13, and the battery assembly 6 is detachably connected to the power supply line 5.

[0063] 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.

[0064] The power supply line 5 and battery assembly 6 are housed within the second storage space 13. Users can place the battery assembly 6 within the second storage space 13 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, 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 carrying tool. 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.

[0065] In some implementations, the power supply line 5 can extend to the outside of the hand warmer and connect directly to the socket.

[0066] In some embodiments, the power supply line 5 is provided with a female connector 51, and the battery assembly 6 has a connector 61 that mates with the female connector 51. However, the connection method between the power supply line 5 and the battery assembly 6 is not limited to a plug-in connection. Depending on the specific application scenario, in some embodiments, the power supply line 5 and the battery assembly 6 can be powered by a magnetic connection.

[0067] In some embodiments, a cap 52 is connected to the power supply line 5, and the plug-in female socket 51 is plugged into the cap 52.

[0068] 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.

[0069] 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.

[0070] In some embodiments, the buckle 52 and the plug-in female 51 are connected by a bendable structure 53 so that the buckle 52 can be easily plugged into or separated from the plug-in female 51.

[0071] In this embodiment, the bendable structure 53 is U-shaped. However, the shape of the bendable structure 53 is not limited to this. Depending on the specific application scenario, in some embodiments, the bendable structure 53 can be (but is not limited to) easily bendable shapes such as C-shaped, V-shaped, and W-shaped.

[0072] In some implementations, the flexible structure 53 can be replaced with a soft chain, such as textiles, iron chains, or rubber strips.

[0073] The snap cap 52 and the female connector 51 are connected by an easy-bend structure 53, making the female connector 51, snap cap 52, and power supply line 5 a whole. This effectively avoids the risk of the snap cap 52 being easily lost during use due to its small size. At the same time, the easy-bend structure 53 has a predetermined bending position, which can be predicted in advance. When the user moves the snap cap 52 or the female connector 51, the bending point will bend the snap cap 52 and the female connector 51, placing them in the insertion position for easy use and improving insertion efficiency.

[0074] Please see Figure 5 and Figure 7 . Figure 6 This is a schematic diagram of the electronic control module structure in this embodiment; Figure 7 This is an exploded view of the electronic control module in this embodiment.

[0075] like Figure 6 , Figure 7 As shown, in some embodiments, the electronic control module 4 includes: a housing 41 and a PCB circuit board 42 disposed within the housing 41. The housing 41 is connected to the pad 1, and at least a portion of the structure of the housing 41 is exposed on the surface of the pad 1. The power supply line 5 and the wires are connected to the PCB circuit board 42.

[0076] In this embodiment, the shell 41 and the pad 1 are connected by clamping. However, the connection method between the shell 41 and the pad 1 is not limited to this. Depending on the specific application scenario, in some embodiments, the connection method between the shell 41 and the pad 1 is (not limited to): screw connection, riveting, adhesive bonding, hot pressing fusion, sewing, etc.

[0077] In some embodiments, a colloid is injected into the housing 41. This colloid is used to wrap the PCB circuit board 42 and the connection points between the PCB circuit board 42 and the power supply line 5 and wires. By alternately injecting the colloid into the housing 41, the colloid wraps the PCB circuit board 42 and the connection points between the power supply line 5 and wires, thus providing a waterproof function to the aforementioned structure and connection points. When the hand warmer needs to be washed, the colloid prevents water from entering the internal control module 4 and causing a short circuit. The colloid provides the hand warmer with a washable function; effective cleaning keeps the hand warmer clean, extends its service life, reduces bacterial retention, and is beneficial to the user's health.

[0078] In some embodiments, a first stop ring 411 is circumferentially arranged around the side of the housing 41. The first stop ring 411 is inserted into the pad 1. A second stop ring 412 is sleeved on the side of the housing 41 that is exposed outside the pad 1. The first stop ring 411 and the second stop ring 412 are clamped on the pad 1.

[0079] The design of the first stop ring 411 prevents the housing 41 from detaching from the pad 1, while the second stop ring 412 connects to the exposed part of the housing 41, preventing the housing 41 from falling into the pad 1 from the outside. Therefore, the first stop ring 411 and the second stop ring 412 can connect the pad 1 and the housing 41 by clamping.

[0080] By using clamping and fixing, the assembly efficiency of connecting the housing 41 and the pad 1 is improved. Compared with the existing technology, which uses sewing or gluing to connect hard objects and fabrics, this method can greatly improve assembly efficiency and avoid glue leakage and fabric contamination, resulting in a more aesthetically pleasing finish.

[0081] The second stop ring 412 is connected to the housing 41 via a snap-fit ​​connection. Specifically, the surface of the housing 41 has raised ridges, and the inner surface of the second stop ring 412 has grooves that mate with the raised ridges. This snap-fit ​​connection improves the assembly efficiency of the connection between the second stop ring 412 and the housing 41, allowing for quick assembly by simply pressing. Furthermore, the snap-fit ​​connection facilitates disassembly, enabling convenient disassembly, maintenance, and replacement of the electronic control module 4.

[0082] However, the connection method between the second stop ring 412 and the housing 41 is not limited to this. Depending on the specific application scenario, in some embodiments, the second stop ring 412 and the housing 41 can be connected by (but not limited to): interference fit, welding, screw connection, riveting, magnetic connection, etc.

[0083] In some embodiments, the pad 1 is provided with a hardening structure 14 at the connection position with the housing 41 to make the connection between the pad 1 and the housing 41 more stable.

[0084] In this embodiment, the hardening structure 14 refers to making the hardness of the pad 1 at the connection position with the shell 41 greater than the hardness of the fabric at other positions of the pad 1. Therefore, the hardening structure 14 includes (but is not limited to): compressing and curing multiple layers of fabric at the corresponding position of the pad 1, fixing a fixing ring 141 on the inner side of the corresponding position of the pad 1, and forming an embroidered ring at the corresponding position of the pad 1 by embroidery sewing, or a combination of one or more of these methods.

[0085] In some embodiments, the hardening structure 14 includes compressing and curing the multi-layer structure of the pad 1. The compression and curing methods include (but are not limited to): adhesive bonding, hot-pressing fusion, needle and thread sewing, etc.

[0086] In some embodiments, the hardening structure 14 includes a retaining ring 141 disposed within the pad 1. The retaining ring 141 is a plastic ring. However, the material of the retaining ring 141 is not limited to this. Depending on the specific application scenario, in some embodiments, the retaining ring 141 can be (but is not limited to): wood, metal, composite materials, etc. The connection method between the retaining ring 141 and the pad 1 includes (but is not limited to): adhesive bonding, sewing, hot pressing fusion, etc.

[0087] In some embodiments, the hardening structure 14 includes: the pad 1 is embroidered to form an embroidered ring at the connection position with the housing 41. The dense embroidery process can fix the multiple layers of pad 1 at the corresponding positions of the pad 1 and form an embroidered ring with high hardness and aesthetics.

[0088] By forming a hardened structure 14 on the pad 1, the hardened structure 14 has poor deformation capacity, which can prevent the first stop ring 411 of the shell 41 from detaching from the inside of the shell 41, making the connection between the shell 41 and the pad 1 more stable. At the same time, the hardened structure 14 can enhance the tensile strength at the connection position between the pad 1 and the shell 41, effectively preventing the fabric of the pad 1 from tearing at the connection position under large external forces, thus making the pad 1 more reliable.

[0089] Please see Figure 4 , Figure 4 This is a schematic diagram of the overall structure of the second form of the hand warmer in this embodiment.

[0090] like Figure 4 As shown, in some embodiments, the second storage space 13 is formed on the side of the pad body 1, and a second locking structure 131 is provided at the opening of the second storage space 13. The second locking structure 131 is used to open or close the second storage space 13.

[0091] In this embodiment, the second locking structure 131 is a zipper. However, the second locking structure 131 is not limited to this. Depending on the specific application scenario, in some embodiments, the second locking structure 131 can be (but not limited to): Velcro, button, magnetic snap, lock, etc.

[0092] A second locking structure 131 is installed at the second storage space 13. When the user uses the battery assembly 6, after connecting the battery assembly 6 to the power supply line 5, the second locking structure 131 seals the battery assembly 6 within the second storage space 13, preventing it from falling and causing damage, and also preventing it from being lost. The second locking structure 131 allows the user to disassemble and replace the battery assembly 6, enabling battery swapping for the hand warmer and extending its usage time, providing a longer heating and warmth function. Simultaneously, the battery assembly 6 can also be disassembled and used as a power bank, achieving dual functionality.

[0093] In some embodiments, the pad 1 is filled with a filling material on the side of the second storage space 13 facing the heating element 3.

[0094] In this embodiment, the filling material is a down pad. However, the material of the filling material is not limited to this. Depending on the specific application scenario, the filling material can be (but is not limited to): soft and fluffy items such as cotton, animal hair, polyester fiber, silk, lyocell, and PP cotton.

[0095] The second storage space 13 has a filling material on the side facing the heating element 3, which can improve the warmth retention of the hand warmer. At the same time, placing the filling material in this position means that when the user's hand is placed in the hand warmer, there is a filling material between the hand warmer and the user's hand, which reduces the feeling of foreign objects when using the hand warmer and improves the tactile and warmth retention experience.

[0096] In some embodiments, the filling material can be a separately installed thermal pad 112.

[0097] In some embodiments, the pad 1 includes: a sleeve 111; a heating pad 112 disposed inside the sleeve 111; and a heating element 3 disposed between the sleeve 111 and the heating pad 112; the edges of the sleeve 111 and the heating pad 112 are connected and fixed.

[0098] In this embodiment, the sleeve 111 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. When the sleeve 111 is a single piece of fabric, the sleeve 111 is connected to the filling pad.

[0099] In this embodiment, the heating pad 112 is a down pad. However, the material inside the heating pad 112 is not limited to this. Depending on the specific application scenario, the heating pad 112 can be (but is not limited to): a pad body 1 made of soft and fluffy materials such as cotton pads, animal hair pads, polyester fiber pads, silk pads, lyocell pads, and PP cotton pads.

[0100] In this embodiment, the heating element 3 being positioned between the sleeve 111 and the insulating pad 112 refers to the spatial relationship between the heating element 3 and the sleeve 111 and the insulating pad 112, rather than the connection relationship of the heating element 3. The heating element 3 can be clamped between the sleeve 111 and the insulating pad 112, can be connected to the inner surface of the sleeve 111, can be connected to the insulating pad 112, or can be connected to other attachable objects positioned between the sleeve 111 and the insulating pad 112. The above connection methods can be selected according to the needs of specific application scenarios and are not limited here.

[0101] The edges of the cover 111 and the insulating pad 112 are connected and fixed by sewing. However, the connection method between the cover 111 and the insulating pad 112 is not limited to this. Depending on the specific application scenario, in some embodiments, the connection method between the cover 111 and the insulating pad 112 can also be (not limited to): adhesive bonding, heat pressing fusion, zipper, etc.

[0102] A heating pad 112 is installed inside the pad body 1, and a heating element is placed between the heating pad 112 and the cover body 111. The heating pad 112 can play a good role in absorbing and keeping warm.

[0103] In some embodiments, the first pad 11 further includes: a lining layer 113 disposed between the heating pad 112 and the cover 111, a heating element 3 disposed between the lining layer 113 and the heating pad 112, and the edges of the cover 111, the heating pad 112 and the lining layer 113 being connected and fixed.

[0104] In this embodiment, the lining layer 113 is fleece. However, the material of the lining layer 113 is not limited to this. Depending on the specific application scenario, the lining layer 113 can also be any fabric or a heat-absorbing silicone layer.

[0105] In this embodiment, the heating element 3 being positioned between the lining layer 113 and the insulating pad 112 refers to the spatial relationship between the heating element 3 and the lining layer 113 and the insulating pad 112, rather than the connection relationship of the heating element 3. The heating element 3 can be sandwiched between the lining layer 113 and the insulating pad 112, can be connected to the inner surface of the lining layer 113, can be connected to the insulating pad 112, or can be connected to other attachable materials positioned between the lining layer 113 and the insulating pad 112. These connection methods can be selected according to the specific application scenario and are not limited here.

[0106] The edges of the cover 111, the lining layer 113, and the insulating pad 112 are connected and fixed by sewing. However, the connection method of the cover 111, the lining layer 113, and the insulating pad 112 is not limited to this. Depending on the specific application scenario, in some embodiments, the connection method of the lining layer 113 and the insulating pad 112 can also be (not limited to): adhesive bonding, heat pressing fusion, zipper, etc.

[0107] A lining layer 113 is provided inside the first pad 11, and the heating element is placed between the lining layer 113 and the warming pad 112. The lining layer 113 increases the distance between the surface of the sleeve 111 and the heating element 3, preventing the user from directly touching the heating element 3 through the sleeve 111, reducing the feeling of foreign objects during use, and improving the safety of the hand warmer. At the same time, the lining layer 113 can also increase the warmth retention of the side of the hand warmer closer to the hand, preventing the internal temperature of the hand warmer from losing too much heat.

[0108] In some embodiments, the lining layer 113 includes a fleece surface 113a and a smooth surface 113b, with the fleece surface 113a disposed on the side facing the cover body 111 and the smooth surface 113b disposed on the side facing the heat insulation pad 112, and the heating element 3 fixed on the smooth surface 113b.

[0109] Compared to the smooth surface 113b, the napped side 113a of the lining layer 113 has the following characteristics: poorer thermal conductivity, higher thermal resistance, and better warmth retention. Compared to the napped side 113a, the smooth surface 113b of the lining layer 113 has the following characteristics: better thermal conductivity, lower thermal resistance, and poorer warmth retention.

[0110] The heating element 3 is fixed to the smooth surface 113b. The smooth surface 113b has good thermal conductivity, which can conduct the heat generated by the heating element 3 to other parts of the lining layer 113, increasing the heat conduction area of ​​the lining layer 113. Meanwhile, the fleece surface 113a, due to its good heat absorption and insulation effect, can absorb the heat conducted from the smooth surface 113b. Its high thermal resistance reduces the rate of heat loss, extending the heat retention time of the hand warmer. At the same time, the fleece surface 113a has good water absorption properties. When not in use, it can absorb more water molecules from the air. The absorbed water molecules, under the heating of the heating element 3, re-evaporate, increasing the humidity inside the hand warmer, improving user comfort, maintaining the humidity of the user's hands, and enhancing the user experience.

[0111] 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.

[0112] 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, characterized in that, include: A cushion body, wherein the cushion body is folded and bent to form a sleeve having a first storage space; A first locking structure is disposed on the pad body to maintain the shape of the sleeve; A heating element is disposed on or inside the pad to increase the temperature of the pad or the storage space. An electronic control module is disposed on the pad and connected to the heating element via a wire; A power supply line is connected to the electronic control module, and a second storage space is provided on the pad to house the power supply line and connect it to the external environment. The electronic control module includes: a housing and a PCB circuit board disposed within the housing, the housing being connected to the pad, and at least a portion of the structure of the housing being exposed on the surface of the pad, the power supply line and the wires being connected to the PCB circuit board; The pad has a hardened structure at the connection point with the shell to make the connection between the pad and the shell more stable.

2. The hand warmer bag according to claim 1, characterized in that, The cushion further includes: a battery assembly, one end of the power supply line being connected to the electronic control module, and the other end of the power supply line being connected to the battery assembly, the battery assembly being disposed within the second storage space, and the battery assembly being detachably connected to the power supply line; and / or The pad body includes: a sleeve; A heating pad is disposed within the body of the sleeve, and a heating element is disposed between the body of the sleeve and the heating pad. The edges of the sleeve and the insulating pad are connected and fixed.

3. The hand warmer bag according to claim 2, characterized in that, The power supply line is provided with a female connector, and the battery assembly is provided with a connector that mates with the female connector. And / or, The first pad also includes: a lining layer, the lining layer being disposed between the insulating pad and the cover, the heating element being disposed between the lining layer and the insulating pad, and the edges of the cover, the insulating pad and the lining layer being connected and fixed.

4. The hand warmer bag according to claim 3, characterized in that, A cap is connected to the power supply line, and the female connector is plugged into and connected to the cap; and / or... The lining layer includes a fleece side and a smooth side, the fleece side being disposed on the side facing the cover body, the smooth side being disposed on the side facing the heating pad, and the heating element being fixed on the smooth side.

5. The hand warmer bag according to claim 4, characterized in that, The buckle and the plug-in female are connected by an easily bendable structure, so that the buckle can be easily inserted into or separated from the plug-in female.

6. The hand warmer bag according to claim 1, characterized in that, The housing is injected with a colloid used to encapsulate the PCB circuit board and the connection points between the PCB circuit board and the power supply lines and the wires; and / or, A first stop ring is circumferentially arranged around the side of the housing, and the first stop ring is inserted into the pad body. A second stop ring is sleeved on the side of the housing that is exposed outside the pad body, and the first stop ring and the second stop ring are clamped on the pad body.

7. The hand warmer bag according to claim 6, characterized in that, The hardening structure includes: compressing and curing the multi-layer structure of the pad; and / or, The hardening structure includes: a fixing ring disposed within the pad; and / or, The hardened structure includes: the pad body embroidering an embroidered loop at the connection point with the shell; and / or... The second stop ring is snapped into the exposed portion of the housing.

8. The hand warmer bag according to claim 1, characterized in that, The second storage space is located on the side of the pad, and a second locking structure is provided at the opening of the second storage space. The second locking structure is used to open or close the second storage space.

9. The hand warmer bag according to claim 1, characterized in that, The pad has a filling material on the side of the second storage space facing the heating element.

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