A splicable self-heating pack assembly

Abstract

The utility model discloses a kind of self-heating package assemblies of splicing type, including splicing connector and two or more self-heating packages, self-heating package is flat body, self-heating package is rectangular, the body circumference of self-heating package is reserved with entity sealing splicing frame, splicing frame belongs to the edge body sealing area of packaging, the frame of splicing frame belongs to heating area, splicing frame sealing type surrounds heating area;Between two adjacent self-heating packages is through the splicing frame of one of self-heating package and the splicing frame of another self-heating package connection, splicing connector is arranged at the splicing frame between two adjacent self-heating packages, so that splicing connection is formed between self-heating package;The purpose of the product splicing connection is to prevent loose, there is continuity to enlarge heating area, according to the required heating area splicing corresponding quantity is used, after self-heating package splicing connection, corresponding multiple heating area can be increased, it is convenient for people to select quantity according to requirement, avoid waste.

Description

Technical Field

[0001] This utility model relates to self-heating packs, and more particularly to a modular self-heating pack assembly. Background Technology

[0002] Existing self-heating packs / patches are all independent and can only be used one at a time. They are generally square. When a large area needs to be used together, the self-heating packs / patches can only be placed close together. However, when there is movement, the self-heating packs / patches become loose and messy, making it impossible to use them neatly. Furthermore, using them close together cannot achieve a smooth transition of temperature between the self-heating packs / patches, resulting in gaps between them. These gaps do not generate heat and have temperature differences, leading to uneven heating of the body and resulting in localized low temperatures. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a self-heating pack assembly with a reasonable structural design, convenient use, and modular design.

[0004] The solution to the above technical problem is as follows:

[0005] A modular self-heating pack assembly includes a connector and two or more self-heating packs. Each self-heating pack is flat and rectangular. A solid, sealed connector is provided around the perimeter of the pack's body. This connector is part of the sealed edge area of ​​the packaging, and the area within the connector is the heating area. The connector seals around the heating area. Adjacent self-heating packs are connected via the connector of one self-heating pack to the connector of the other. The connector is positioned at the connector between adjacent self-heating packs, creating a connection between them.

[0006] The advantages of this modular self-heating pack assembly are as follows: The purpose of this product's modular connection is to prevent loosening and to continuously expand the heating area. The appropriate number of packs can be assembled according to the required heating area. After being assembled, the heating area can be increased by a corresponding multiple, allowing users to choose the quantity needed and avoiding waste. The above structure is simple, practical, and easy to use. It is convenient to carry and use both outdoors and at home, achieving multi-purpose and multi-environmental application. Attached Figure Description

[0007] Figure 1 This is a schematic diagram showing the self-heating pack of this utility model sealed in a thin film bag.

[0008] Figure 2 This is a side view of the self-heating pack of this utility model product;

[0009] Figure 3 This is a cross-sectional view of the self-heating pack of this utility model product;

[0010] Figure 4 This is a front perspective view of the self-heating pack of this utility model;

[0011] Figure 5 The reverse heat transfer film layer of the self-heating pack of this utility model has a self-adhesive film covering the entire surface, and a removable release paper layer is pre-adheded to the surface of the self-adhesive film, forming a three-dimensional image of the reverse side.

[0012] Figure 6 yes Figure 5 The illustration shows the product after the release liner has been removed to expose the adhesive.

[0013] Figure 7 yes Figure 6 The illustration shows the product with the release liner completely removed, exposing the adhesive.

[0014] Figure 8 yes Figure 7 A front view of the product after it has been assembled and connected;

[0015] Figure 9 yes Figure 7 A reverse view of the product after it has been assembled and connected;

[0016] Figure 10 This is a three-dimensional view of the reverse side of the splicing frame of the self-heating pack of this utility model, which uses snap fasteners.

[0017] Figure 11 A front perspective view of the splicing frame of the self-heating pack of this utility model using snap fasteners;

[0018] Figures 12 to 15 This is a front view of the product of this utility model after it has been connected using a snap fastener.

[0019] Figure 16 A three-dimensional view of the reverse side of the splicing frame of the self-heating pack of this utility model, which uses Velcro.

[0020] Figure 17 A front perspective view of the Velcro used for the splicing frame of the self-heating pack of this utility model product;

[0021] Figure 18 , Figure 19 This is a front view of the product of this utility model after it has been connected using Velcro.

[0022] Figure 20 A three-dimensional view of the reverse side of the splicing frame of the self-heating pack of this utility model, using double-sided adhesive.

[0023] Figure 21 yes Figure 20The illustration shows the product after the release liner of the double-sided adhesive has been removed, exposing the adhesive.

[0024] Figure 22 , Figure 23 This is a front view of the product after it has been joined together using double-sided adhesive.

[0025] 1. Connecting elements, 101. Velcro, 102. Snap fasteners, 103. Double-sided tape, 1031. Isolation tape, 104. Self-adhesive tape, 105. Isolation paper layer, 2. Self-heating pack, 21. Temperature-controlled and breathable layer, 22. Self-heating formula material, 23. Heat transfer film layer, 221. Self-heating material cavity, 201. Splicing frame, 202. Heating area, 3. Film bag. Detailed Implementation

[0026] like Figures 1 to 23 As shown: A modular self-heating pack 2 assembly includes a connecting element 1 and two or more self-heating packs 2. The self-heating packs 2 are flat and rectangular, and each self-heating pack 2 has the same shape. The length, width, thickness, and structure of each self-heating pack 2 are the same. The main technical improvement of this product is as follows: A solid, sealed splicing frame 201 is pre-reserved along the perimeter of the self-heating pack 2. The width of the splicing frame 201 is 5 mm to 1 cm. The splicing frame 201 belongs to the sealed edge area of ​​the packaging, and the area within the frame of the splicing frame 201 belongs to the heating area 202. The splicing frame 201 seals around the heating area 202. Two adjacent self-heating packs 2 are connected by the splicing frame 201 of one self-heating pack 2 to the splicing frame 201 of the other self-heating pack 2. The splicing connector 1 is set at the splicing frame 201 between two adjacent self-heating packs 2, forming a splicing connection between them. The purpose of this splicing connection is to prevent loosening and to continuously expand the heating area. The appropriate number of self-heating packs 2 can be spliced ​​according to the required heating area. After splicing, the heating area can be increased by a corresponding multiple, allowing people to choose the required quantity and avoid waste. The above structure is simple, practical, and easy to use. It is convenient to carry when going out and also convenient to use at home, achieving multi-purpose and multi-environment use (e.g., underground, on a boat, in a cave, inside a car, etc.). For example, it can also warm pets of different sizes, and the area can be pieced together according to the size of the pet. In principle, the splicing frame 201 of two adjacent self-heating packs 2 are connected coaxially and flush with each other on the same side. The self-heating packs 2 can be disassembled after being connected. If the connection is not flush, it can be torn / disassembled and then reconnected.

[0027] The length and width of the self-heating pack 2 range from 5 cm to 50 cm, depending on the required size and intended use. For example: 1. A self-heating pack 2 for personal warmth, with a length and width of 5 cm to 10 cm, is suitable. It can be assembled to increase the heating area on the back, and the number of packs can be customized to accommodate different back areas for adults and children. 2. A self-heating pack 2 for warmth while sitting on a chair, with a length and width of 10 cm to 15 cm, is suitable. The number of packs can be customized to accommodate different sitting areas for adults and children. 3. A self-heating pack 2 for outdoor sleeping on a sleeping mat, with a length and width of 35 cm to 50 cm, is suitable because it requires a large area. The number of packs can be customized to accommodate different sizes of people, adults, or children to avoid waste. 4. A self-heating pack 2 for warmth for pets, with a length and width of 5 cm to 10 cm, can be customized to accommodate different pet sizes or ambient temperatures.

[0028] Further, in the preferred technical solution: there are two or more self-heating packs 2; the two self-heating packs 2 can be fixedly connected together by splicing connectors 1 on either side of the splicing frame 201, without needing to determine the direction before splicing, and the splicing is easy and convenient.

[0029] Further, in the preferred technical solution: the self-heating packs 2 can be spliced ​​together infinitely on all four sides, and the area can be freely expanded and spliced ​​in any direction.

[0030] Further, in the preferred technical solution: the adjacent splicing frame 201 between the self-heating packs 2 are stacked and connected, and the splicing connector 1 is sandwiched between the upper and lower layers of the splicing frame 201 for fixation, the splicing connection is firm, the heating heat between the self-heating packs 2 is continuously transferred, and the interval distance is reduced.

[0031] Further refinement of the preferred technical solution: such as Figures 16-19 As shown: The splicing connector 1 is Velcro 101. Half of Velcro 101 is sewn or ultrasonically welded to the surface of the splicing frame 201 on one side of the self-heating pack 2, and the other half of Velcro 101 is sewn or ultrasonically welded to the surface of the splicing frame 201 on the other side of the self-heating pack 2. During splicing, two adjacent self-heating packs 2 can be stacked and glued together. The splicing is convenient and simple, and it is not easy to separate or disperse. If the splicing is not even, it can be torn apart and re-spun, which is convenient for use.

[0032] Further refinement of the preferred technical solution: such as Figures 10-15As shown: The splicing connector 1 is a snap fastener 102. One half of the snap fastener 102 is riveted or glued to the splicing frame 201 surface on one side of the self-heating pack 2, and the other half of the snap fastener 102 is riveted or glued to the splicing frame 201 surface on the other side of the self-heating pack 2. When splicing, two adjacent self-heating packs 2 can be stacked and spliced ​​together. The splicing is convenient and simple, and it is not easy to separate or disperse. If the splicing is not even, it can be torn apart and re-sponged, which is convenient for use.

[0033] Further refinement of the preferred technical solution: such as Figures 20-23 As shown: The splicing connector 1 is double-sided adhesive 103. During production, double-sided adhesive 103 is pre-adheded and fixed on the surface of the splicing frame 201 on one side of the self-heating pack 2. When in use, the surface isolation strip 1031 of the double-sided adhesive 103 is peeled off to expose the adhesive. The adjacent splicing frames 201 between the self-heating packs 2 are stacked and fixed together by adhesive. The splicing is convenient and simple, and it is not easy to separate or disperse. If the splicing is not even, it can be torn apart and re-sponsed, which is convenient for use.

[0034] Further refinement of the preferred technical solution: such as Figures 4-9 As shown: The entire surface of the heat transfer film layer 23 on the reverse side of the self-heating pack 2 is covered with self-adhesive 104. This self-adhesive 104 is a splicing connector 1. A removable release paper layer 105 is pre-adheded to the surface of the self-heating pack 104. In use, after removing the release paper layer 105 from the surface of the self-heating pack 104, the self-heating pack 104 is fully exposed. The adjacent splicing frames 201 between the self-heating packs 2 are stacked and fixed together by the self-adhesive 104. The remaining uncovered self-adhesive 104 is used to connect with the object to be bonded. For example, if the object to be bonded is a pad or the surface of the item to be heated, after the self-heating packs 2 are spliced ​​together, they are then bonded and fixed to the surface of the pad or the item to be heated by the uncovered self-adhesive 104. In this way, the entire self-heating pack 2 is fixed and will not slide or naturally shift.

[0035] The above Figures 4 to 23 The specific structural splicing connector 1 used is only an example for illustration, and is not limited to the splicing connector 1 used in the example given above.

[0036] Further, in the preferred technical solution: the rectangle is a square, therefore, the two self-heating packs 2 can be fixedly connected together on any side of the splicing frame 201 by the splicing connector 1, and the self-heating packs 2 can be spliced ​​together infinitely on all four sides.

[0037] Further refinement of the preferred technical solution: The self-heating pack 2 structure includes a temperature-controlled breathable layer 21, a self-heating formulation material 22, and a heat transfer film layer 23; the heat transfer film layer 23 is permeable to heat transfer, but impermeable to air and water, and heat is dissipated from the heat transfer film layer 23 to the outside; the temperature-controlled breathable layer 21, from the outermost layer to the innermost layer, includes a one-line breathable non-woven fabric layer, a first PE polyethylene breathable film layer, a TIE adhesive layer, a second PE polyethylene breathable film layer, a TIE adhesive layer, a breathable control EVOH barrier layer, a TIE adhesive layer, and a third PE... The membrane consists of three layers: a fourth layer of polyethylene (PE), a fifth layer of PE, and a sixth layer of PE. These ten layers are stacked and sealed around their perimeters using ultrasonic welding. The pores between the layers are staggered to adjust their size, thus controlling the air permeability and consequently the self-heating temperature and heating time of the self-heating formulation material 22. The perimeter of the fifth PE breathable membrane is bonded and sealed to the perimeter of the heat transfer membrane 23, or sealed using ultrasonic welding. A self-heating material cavity 221 is formed between the fifth PE breathable membrane and the heat transfer membrane 23. The self-heating formulation material 22 is placed within this cavity. The self-heating formulation material 22 is wrapped between the temperature-controlled breathable layer 21 and the heat transfer membrane 23. The self-heating formulation material 22 is formulated in a specific ratio according to the set heating time and temperature.

[0038] The nine-layer co-extruded film consists of a first PE (polyethylene) breathable membrane layer, a TIE (tightening) adhesive layer, a second PE (polyethylene) breathable membrane layer, a TIE adhesive layer, an EVOH (exhaust odor control) barrier layer, a TIE adhesive layer, a third PE (polyethylene) breathable membrane layer, a fourth PE (polyethylene) breathable membrane layer, and a fifth PE (polyethylene) breathable membrane layer. This nine-layer co-extruded film is a high-performance film produced by the German W&H nine-layer co-extrusion MDO blown film machine. It has the characteristics of high air permeability and low moisture permeability, and can precisely control the heating temperature and time.

[0039] Self-heating ingredient 22 includes:

[0040] 1. Iron powder: As the main heat-generating substance, iron powder undergoes a chemical reaction when it comes into contact with oxygen.

[0041] 2. Activated carbon: It acts as a catalyst in the reaction, accelerating the reaction rate between iron powder and oxygen.

[0042] 3. Vermiculite: It is an iron-magnesium aluminum silicate mineral that can significantly prolong the heating time of the self-heating pack 2 (warm pack) and maintain its heat, thus achieving a better heat preservation effect.

[0043] 4. Water: The presence of water is to help the chemical reaction in the oxidation process of iron powder, and at the same time maintain a certain humidity condition.

[0044] 5. Salt (sodium chloride): It helps to regulate the humidity and ion concentration of the reaction environment and has a certain influence on the reaction process.

[0045] 6. Water-absorbing resin: It can quickly absorb and lock in heat, reduce heat loss, thereby increasing the temperature stability of the self-heating pack 2 (heat patch) and enabling it to provide warmth for a longer period of time.

[0046] The self-heating pack 2 is sealed in a thin film bag 3 upon completion of production to prevent air (oxygen) from contacting the self-heating formula substance 22 and causing an oxidation reaction that generates heat. The unopened packaging film bag 3 of the self-heating pack 2 blocks air, keeping the iron powder inside in a "dormant" state. When we tear open the packaging film bag 3, oxygen (air) enters the internal self-heating substance cavity 221 through the temperature-controlled breathable layer 21, undergoing an exothermic chemical reaction with the iron powder, thus generating heat. To maintain the temperature, activated carbon is used to absorb moisture from the air, ensuring the exothermic reaction proceeds smoothly. In addition, the mineral material vermiculite not only provides insulation but also, together with the activated carbon, disperses the iron powder, preventing the self-heating pack 2 from heating up too quickly and burning the skin. The activated carbon and vermiculite expand after heating, which is why we only see the heated area 202 bulging after use. Redox reaction: When the packaging film bag 3 is torn open, the iron powder inside the bag undergoes a redox reaction with oxygen in the air. The iron powder (Fe) is oxidized into iron oxide (Fe2O3). This process releases a large amount of heat energy. Catalyst effect: Activated carbon acts as a catalyst, accelerating the reaction rate between the iron powder and oxygen, causing heat to be generated rapidly in a short time.

Claims

1. A modular self-heating pack assembly, comprising connecting elements and two or more self-heating packs, wherein the self-heating packs are flat and rectangular, characterized in that: The self-heating pack has a pre-reserved solid sealing splicing frame around its body ring. The splicing frame is part of the sealed edge area of ​​the packaging, and the area within the frame of the splicing frame is the heating area. The splicing frame seals around the heating area. Two adjacent self-heating packs are connected by the splicing frame of one self-heating pack to the splicing frame of the other self-heating pack. The splicing connector is set at the splicing frame between two adjacent self-heating packs, so that the self-heating packs are spliced ​​together.

2. The modular self-heating pack assembly according to claim 1, characterized in that: There are two or more self-heating packs; two self-heating packs can be fixedly connected together on either side of the splicing frame by splicing connectors.

3. The modular self-heating pack assembly according to claim 2, characterized in that: The self-heating packs can be spliced ​​together indefinitely on all four sides.

4. A modular self-heating pack assembly according to any one of claims 1 to 3, characterized in that: The adjacent splicing frames of the self-heating packs are stacked and connected, and splicing connectors are sandwiched between the upper and lower layers of the splicing frames for fixation.

5. A modular self-heating pack assembly according to claim 4, characterized in that: The splicing connector is a Velcro, with one half of the Velcro fixedly connected to the splicing frame surface on one side of the self-heating pack, and the other half of the Velcro fixedly connected to the splicing frame surface on the other side of the self-heating pack.

6. A modular self-heating pack assembly according to claim 4, characterized in that: The splicing connector is a snap fastener, with one half of the snap fastener fixedly connected to the splicing frame surface on one side of the self-heating pack, and the other half of the snap fastener fixedly connected to the splicing frame surface on the other side of the self-heating pack.

7. A modular self-heating pack assembly according to claim 4, characterized in that: The splicing connector is double-sided tape. Double-sided tape is fixed to the splicing frame surface on one side of the self-heating pack. When in use, the release strip on the surface of the double-sided tape is removed to expose the adhesive. The adjacent splicing frames of the self-heating packs are stacked and fixed together by the adhesive.

8. A modular self-heating pack assembly according to claim 4, characterized in that: The entire surface of the heat transfer film layer on the reverse side of the self-heating pack is covered with self-adhesive, and a removable release paper layer is pre-adheded to the surface of the self-heating pack. In use, after removing the release paper layer from the self-heating pack, the self-heating pack is fully exposed. The adjacent splicing frames of the self-heating packs are stacked and fixed together with self-adhesive. The remaining uncovered self-adhesive is used to connect with the object to be bonded.

9. A modular self-heating pack assembly according to any one of claims 1 to 3, characterized in that: The rectangle is a square.

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