Cooling patch

Abstract

The utility model discloses a cooling patch, which relates to the technical field of cooling articles, and comprises a patch pad, the patch pad comprises a first packaging layer and a second packaging layer which are oppositely arranged, at least one cooling unit is packaged between the first packaging layer and the second packaging layer, the cooling unit is filled with a phase change material which is in a solid state at normal temperature, and the phase change material is n-octadecane; outer sealing edges are arranged on the peripheries of the first packaging layer and the second packaging layer, and the first packaging layer and the second packaging layer are impermeable barrier material layers. The ice mat solves the problems that an existing ice mat is poor in cooling effect and thick and heavy.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling products, in particular to a cooling patch. Background Art

[0002] Ice pads are a common cooling product that absorbs and dissipates heat through internal cooling materials, thereby providing users with a comfortable low-temperature environment. Existing ice pads mainly include a pad and a cooling material filled in the pad. The cooling materials commonly used in ice pads are mainly water or gel. Water is widely used as a cooling material in ice pads. Its advantages are low price, easy to obtain, and direct cooling effect. However, the disadvantages of water are also obvious: first, the freezing point of water is high, and it needs to be at a lower temperature to freeze, which limits the use effect of ice pads in high temperature environments; second, water absorbs a lot of heat during the melting process, but the melted water will flow, which may cause uneven distribution of water inside the ice pad, affecting the cooling effect. Gel materials have good thermal stability and heat absorption properties, and can maintain low temperatures continuously. However, the disadvantage of gel materials is that their cost is relatively high, and aging, deformation and other problems may occur during use, affecting the cooling effect and service life.

[0003] In addition, existing ice pads are often designed to be thick and heavy. Part of the reason for the thick thickness is the cooling material itself. In order to ensure the long-lasting and stable cooling effect, a large amount of cooling material needs to be filled inside the ice pad, which naturally increases the thickness of the pad. Especially when gel-type cooling materials are used, due to their viscosity and the need to maintain a certain shape stability, more materials are usually required to fill them, which further increases the thickness of the pad. The heavy weight of existing ice pads is also related to the cooling material. Cooling materials such as water and gel themselves have a certain weight. Especially when the filling amount is large, the mass of the entire ice pad will naturally increase accordingly. In addition, in order to maintain the shape and structural stability of the ice pad, additional supporting materials or reinforcement layers may be required, which will also increase the overall weight of the ice pad. Utility Model Content

[0004] The utility model aims to provide a cooling patch, which can solve the problems of poor cooling effect and thickness of the existing ice pad.

[0005] In order to solve the above problems, the technical solution adopted by the utility model is: this cooling patch includes a pad, the pad includes a first packaging layer and a second packaging layer arranged relatively to each other, at least one cooling unit is encapsulated between the first packaging layer and the second packaging layer, the cooling unit is filled with a phase change material that is solid at room temperature, and the phase change material is n-octadecane; the first packaging layer and the second packaging layer are provided with an outer sealing edge on the periphery, and the first packaging layer and the second packaging layer are anti-permeability barrier material layers.

[0006] In the technical solution of the cooling patch, a more specific technical solution may also be: more than two cooling units are arranged in the patch pad, and spaced edge seals are arranged between adjacent cooling units.

[0007] Furthermore, through holes are provided at corresponding positions of the cooling unit and the pad, and the pad is provided with an inner sealing edge around the through hole.

[0008] Furthermore, the through hole is arranged at a central position of the cooling unit.

[0009] Furthermore, the temperature-lowering unit is provided with a shaping and pressing area, and the shaping and pressing area is formed by relative pressing of the first packaging layer and the second packaging layer.

[0010] Furthermore, there are connecting channels between adjacent cooling units.

[0011] Furthermore, the communication channel is located inside the outer sealing edge.

[0012] Furthermore, the pad is provided with a connecting ear for wearing a tether.

[0013] Furthermore, the pad is connected with a strap, and the strap is equipped with an adjustment buckle.

[0014] Furthermore, a skin-friendly protective layer is arranged outside the pad.

[0015] Due to the adoption of the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0016] 1. n-Octadecane is encapsulated between the two encapsulation layers of the patch. The n-Octadecane has a high latent heat value and a suitable phase change temperature, so that the cooling patch can quickly release and store cold even under normal temperature conditions, ensuring that the cooling patch can continue to provide a stable cooling effect for a long time under high temperature conditions, with excellent cooling effect, bringing an instant cooling experience to users; due to the use of solid phase change material n-Octadecane, compared with liquid water or gel materials, its density is small, and it is solid at room temperature, it does not require additional supporting materials or reinforcing layers to maintain shape stability, so a lighter and thinner design can be achieved; and the cooling unit is directly encapsulated between the first encapsulation layer and the second encapsulation layer, which reduces the stacking of materials and further reduces the overall thickness and weight; the encapsulation layer is designed as an impermeable barrier material layer, which can effectively prevent the leakage and penetration of n-Octadecane, avoid contact between n-Octadecane and the skin and the external environment, and improve the safety of use. At the same time, it can also prevent external moisture and impurities from entering, maintain the stability of the internal environment, and ensure that the phase change material exerts its best cooling effect within a predetermined temperature range.

[0017] 2. Multiple cooling units are set up, and the interval sealing edges set between adjacent cooling units can play a role of fixing and separating, ensuring that each cooling unit is stable in position inside the pad and is not easy to move or misplace. This can not only improve the stability of the product, but also avoid the weakening or failure of the cooling effect caused by the movement of the unit during use, and reduce the discomfort caused by the temperature difference.

[0018] 3. By opening through holes at the corresponding positions of the cooling unit and the pad, and setting inner sealing edges around the through holes, while ensuring that the through holes are located in the center of the cooling unit, the heat dissipation performance, fit, safety and adaptability of the product can be significantly enhanced, providing users with a more comfortable, safe and effective cooling experience.

[0019] 4. The cooling unit is provided with a shaping pressing area formed by relative pressing of the first packaging layer and the second packaging layer, which not only improves the structural stability and sealing of the cooling unit, avoids deformation or displacement during use, thereby ensuring the durability and stability of the cooling effect, but also facilitates production and assembly.

[0020] 5. There are connecting channels between adjacent cooling units, which can realize heat transfer and balance between cooling units, help improve cooling efficiency and ensure temperature uniformity; these channels are designed to be located on the inside of the outer edge, and the outer edge can also provide additional protection and support for the connecting channels, enhance structural stability and prevent liquid leakage.

[0021] 6. The pad is equipped with connecting ears or adjustable buckle straps, which provides a variety of fixing methods for the cooling patch, so that it can adapt to different usage scenarios and user needs. Whether it needs to be fixed on a backpack, seat, or directly tied to the back of the human body, it can easily fit the human body and achieve effective cooling; the pad is not easy to fall off or be damaged during use, which improves the safety and reliability of the product.

[0022] 7. A skin-friendly protective layer is set on the outside of the pad to provide users with comfort and experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of Example 1 of the cooling patch.

[0024] Figure 2 yes Figure 1 Cross-sectional view along the AA direction.

[0025] Figure 3 It is a structural schematic diagram of Example 2 of the cooling patch.

[0026] Figure 4 It is a structural schematic diagram of Example 3 of the cooling patch.

[0027] Figure 5It is a structural schematic diagram of Example 4 of the cooling patch.

[0028] Figure 6 It is a structural schematic diagram of Example 5 of the cooling patch. DETAILED DESCRIPTION

[0029] The utility model is further described in detail below in conjunction with the accompanying drawings:

[0030] Example 1

[0031] Figure 1 and Figure 2 The cooling patch shown mainly includes a patch pad 1 and a cooling unit 2. The patch pad 1 includes a first packaging layer 4 and a second packaging layer 5 arranged opposite to each other, and at least one cooling unit 2 is encapsulated between the two layers. These cooling units 2 are filled with a phase change material 6 that is solid at room temperature, specifically n-octadecane in this embodiment. When the temperature rises, n-octadecane undergoes a phase change from solid to liquid, absorbing a large amount of heat, thereby providing a lasting cooling effect.

[0032] In order to ensure that the internal phase change material 6 does not leak, the outer periphery of the first encapsulation layer 4 and the second encapsulation layer 5 is provided with an outer sealing edge 3, which is made of an impermeable barrier material to effectively isolate the external environment from the internal phase change material. This design not only ensures the safety of the cooling patch, but also prolongs its service life.

[0033] To further enhance the user experience, a protective layer can be added to the pad. This protective layer is made of soft, breathable materials such as non-woven fabrics, cotton or silk, providing users with a more skin-friendly and comfortable feeling. At the same time, it can also prevent the pad from directly rubbing against the skin, reducing discomfort.

[0034] This cooling patch is simple in design, easy to carry, and suitable for a variety of scenarios. Users can put it directly on the human skin, such as the neck, wrist, etc., to relieve the discomfort caused by high temperatures. In addition, it can also be placed in a pocket or a dedicated belt to provide users with a continuous sense of coolness.

[0035] Example 2

[0036] Figure 3The cooling patch shown is provided with six cooling units 22. In order to meet the needs of different users, other embodiments can also be reduced to four or other suitable numbers according to actual conditions. The six cooling units 22 are arranged in two symmetrical columns, so that the entire pad 21 presents a balanced aesthetic visually. Spacer edge seals 26 are provided between adjacent cooling units 22. These edge seals not only ensure the relative independence of each cooling unit 22, effectively prevent excessive mutual interference between them, but also enhance the overall structural stability of the pad 21. It is worth mentioning that connecting channels 27 are also provided between adjacent cooling units 22. These channels are located on the inner side of the outer edge seal 23, allowing heat and phase change materials to flow between units. When the temperature of a cooling unit 22 rises, the phase change material inside it begins to melt and absorb heat. Subsequently, through the connecting channel 27, the heat and phase change material can be quickly transferred to the adjacent cooling units, thereby achieving a uniform cooling effect for the entire pad.

[0037] In addition, in order to further enhance the air permeability and heat dissipation performance of the pad 21, through holes 25 are provided at the corresponding positions of the cooling unit 22 and the pad 21. The provision of these through holes 25 not only helps to dissipate heat, but also makes the pad 21 more breathable and comfortable during use. At the same time, in order to prevent the phase change material from leaking through the through hole 25, the pad 21 is provided with an inner sealing edge 24 around the through hole to ensure that the through hole 25 does not leak the phase change material. The through hole 25 is provided at the central position of the cooling unit 22, which helps to enhance the air permeability and heat dissipation performance of the pad 21.

[0038] The cooling patch is particularly suitable for use on seats, whether it is a car seat, an office chair or an outdoor leisure seat, just lay it flat on the seat surface to provide users with a long-term, large-area cool feeling. This design not only improves the user's comfort, but also greatly expands the use scenarios of the cooling patch. The remaining features are the same as those of Example 1.

[0039] Example 3

[0040] Figure 4 The cooling patch shown in the figure has a specially designed shaping and pressing area 33 for the cooling unit, because the key areas of the cooling unit 32 are easily affected by external forces or pressures, and these areas are formed by the relative pressing of the first packaging layer and the second packaging layer of the pad 31.

[0041] The design of the shaping and pressing area 33 not only enhances the structural stability of the cooling unit 32, making it less likely to deform or break when facing external force or pressure, but also improves its sealing. The sealing of the phase change material is crucial to the cooling effect, and any slight leakage may affect the performance of the cooling patch. The shaping and pressing area 33 effectively prevents the leakage of the phase change material through tight pressing, ensuring the durability and safety of the cooling effect. The remaining features are the same as those in Example 2.

[0042] Example 4

[0043] Figure 5 The cooling patch shown in the figure is provided with a plurality of connecting ears 42 on the patch pad 41, and these connecting ears 42 are used to wear the tether 43 so as to fix the cooling patch on a backpack, a seat or other objects. This design makes the use of the cooling patch no longer limited to being placed directly on the human skin, but can be flexibly bound and fixed according to actual needs.

[0044] By tying the cooling patch to the backpack through the tether 43, the user can enjoy the cool feeling brought by the backpack in the hot summer, reduce the pressure of the backpack on the back, and make the backpack more comfortable to carry. Similarly, fixing the cooling patch to the seat can also provide a cool seat surface for the user when sitting for a long time, effectively alleviating the discomfort caused by high temperature. In addition, the design of the connecting ear 42 also makes the cooling patch easier to carry and store. The user can fold or roll up the cooling patch and easily put it into a backpack or pocket for easy access at any time. The cooling patch can also be hung and stored by the connecting ear 42 or the tether 43 when not in use. The remaining features are the same as those in Example 2.

[0045] Example 5

[0046] Figure 6 The cooling patch shown is connected to the pad 51 via a strap 52, and an adjustment buckle 53 is installed on the strap 52 so that the user can adjust the tightness of the strap 52 as needed. This design allows the cooling patch to be directly tied to the back or other parts of the human body, providing a personalized cooling experience.

[0047] When the user needs to tie the cooling patch to the body, he only needs to pass the strap 52 through the adjustment buckle 53, and then adjust the tightness according to his needs. Whether it is outdoor sports, fitness exercises or long-term work, this cooling patch can provide users with a personalized cooling experience and effectively relieve the discomfort caused by high temperatures. At the same time, due to the flexibility of the strap, this cooling patch can also be easily tied to objects such as seats and backpacks. In the hot summer, users can tie the cooling patch to the seat and enjoy the cool seat surface; or tie the cooling patch to the backpack, making the backpack a "small air conditioner" while walking.

[0048] The cooling patch of this embodiment not only provides a personalized cooling experience through the design of the strap and the adjustment buckle, but also expands its usage scenarios, so that users can enjoy the cool feeling in more occasions. The remaining features are the same as those of Example 2.

[0049] When used, the n-octadecane filled in the cooling patch will undergo a phase change in a high temperature environment, absorbing a large amount of heat, thereby providing a lasting cool feeling. Whether placed directly on the skin or tied to other objects, this cooling patch can effectively relieve the discomfort caused by high temperatures.

Claims

1. A cooling patch, comprising a patch pad, wherein the patch pad comprises a first encapsulation layer and a second encapsulation layer arranged opposite to each other, wherein at least one cooling unit is encapsulated between the first encapsulation layer and the second encapsulation layer, and wherein: The cooling unit is filled with a phase change material that is solid at room temperature, and the phase change material is n-octadecane; the first encapsulation layer and the second encapsulation layer are provided with outer sealing edges at their peripheries, and the first encapsulation layer and the second encapsulation layer are anti-penetration barrier material layers.

2. The cooling patch according to claim 1, characterized in that: More than two cooling units are arranged in the pad, and spaced edge seals are arranged between adjacent cooling units.

3. The cooling patch according to claim 2, characterized in that: Through holes are provided at corresponding positions of the cooling unit and the pad, and the pad is provided with an inner sealing edge around the through hole.

4. The cooling patch according to claim 3, characterized in that: The through hole is arranged at the central position of the cooling unit.

5. The cooling patch according to claim 2, characterized in that: The temperature reduction unit is provided with a shaping and pressing area, and the shaping and pressing area is formed by relative pressing of the first packaging layer and the second packaging layer.

6. The cooling patch according to any one of claims 1 to 5, characterized in that: There are communication channels between adjacent cooling units.

7. The cooling patch according to claim 6, characterized in that: The communication channel is located inside the outer sealing edge.

8. The cooling patch according to claim 7, characterized in that: The patch is provided with a connecting ear for wearing a tether.

9. The cooling patch according to claim 7, characterized in that: The pad is connected with a strap, and the strap is equipped with an adjustment buckle.

10. The cooling patch according to claim 1, characterized in that: A skin-friendly protective layer is arranged outside the pad.

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