A sheet type humidity control structure

Abstract

This utility model discloses a sheet-type humidity regulating structure, comprising, from bottom to top, a bottom membrane layer, a lower water-guiding layer, a water-locking humidity regulating layer, an upper water-guiding layer, and a semi-permeable membrane layer. The areas of the lower water-guiding layer, the water-locking humidity regulating layer, and the upper water-guiding layer are all smaller than the areas of the semi-permeable membrane layer and the bottom membrane layer. The edges of the semi-permeable membrane layer and the bottom membrane layer are heat-pressed together to encapsulate the lower water-guiding layer, the water-locking humidity regulating layer, and the upper water-guiding layer between the semi-permeable membrane layer and the bottom membrane layer. The semi-permeable membrane layer prevents water droplets from passing through while allowing water vapor to pass through. Both the upper and lower water-guiding layers guide water vapor passing through the semi-permeable membrane layer to the water-locking humidity regulating layer and guide water vapor discharged from the water-locking humidity regulating layer to the semi-permeable membrane layer. The water-locking humidity regulating layer is made of absorbent rubber and is used to regulate humidity and lock in water droplets. This sheet-type humidity regulating structure not only has a high water absorption rate but also does not generate flowing water, thereby greatly reducing the risk of leakage.

Description

Technical Field

[0001] This utility model belongs to the field of humidity control technology, specifically relating to a plate-type humidity control structure. Background Technology

[0002] The stability of the internal environment of the battery pack in new energy vehicles has a significant impact on battery performance and safety. When the humidity inside the battery pack is high, condensation is likely to occur, and the formation of condensed water significantly increases the risk of electrical short circuits. Therefore, humidity control of the internal environment of the battery pack is crucial for battery performance and safety.

[0003] Regarding the humidity control of the internal environment of the battery pack, the automotive humidity control products currently on the market are prone to forming flowing water inside the product when the moisture absorption reaches its limit. In this case, if the humidity control product is squeezed, it is very easy to cause liquid leakage, which can easily lead to serious consequences. Utility Model Content

[0004] In view of the above-mentioned defects of the prior art, the present invention provides a sheet-type humidity control structure, which not only has a high water absorption rate, but also does not generate flowing water, thereby greatly reducing the risk of leakage.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A sheet-type humidity-regulating structure includes a bottom film layer, a lower water-guiding layer disposed on the top surface of the bottom film layer, a water-locking humidity-regulating layer disposed on the top surface of the lower water-guiding layer, an upper water-guiding layer disposed on the top surface of the water-locking humidity-regulating layer, and a semi-permeable membrane layer disposed on the top surface of the upper water-guiding layer. The areas of the lower water-guiding layer, the water-locking humidity-regulating layer, and the upper water-guiding layer are all smaller than the areas of the semi-permeable membrane layer and the bottom film layer. The edges of the semi-permeable membrane layer and the bottom film layer are heat-pressed together to encapsulate the lower water-guiding layer, the water-locking humidity-regulating layer, and the upper water-guiding layer between the semi-permeable membrane layer and the bottom film layer. The semi-permeable membrane layer is used to prevent water droplets from passing through while allowing water vapor to pass through. The upper water-guiding layer and the lower water-guiding layer are both used to guide water vapor passing through the semi-permeable membrane layer to the water-locking humidity-regulating layer and to guide water vapor discharged from the water-locking humidity-regulating layer to the semi-permeable membrane layer. The water-locking humidity-regulating layer is made of water-absorbing rubber and is used to regulate humidity and lock in water droplets.

[0007] Furthermore, the lower water-conducting layer, the water-locking and humidity-regulating layer, and the upper water-conducting layer have equal areas, and the semi-permeable membrane layer has equal areas to the bottom membrane layer.

[0008] Furthermore, the lower water-conducting layer is located directly above the bottom membrane layer, the water-locking and humidity-regulating layer is located directly above the lower water-conducting layer, the upper water-conducting layer is located directly above the water-locking and humidity-regulating layer, and the semi-permeable membrane layer is located directly above the upper water-conducting layer.

[0009] Furthermore, the number of absorbent rubber sheets is one or more.

[0010] Furthermore, the absorbent rubber is an acrylate absorbent rubber.

[0011] Furthermore, both the upper and lower water-guiding layers are made of polyester fiber cotton fabric.

[0012] Furthermore, the semi-permeable membrane layer is one of polytetrafluoroethylene breathable membrane, polyethylene-polypropylene composite breathable membrane, and polytetrafluoroethylene-polyethylene composite breathable membrane.

[0013] Furthermore, the bottom film layer is a polyethylene terephthalate (PET) film.

[0014] Furthermore, the thickness of the semi-permeable membrane layer is controlled between 0.05-0.2 mm, the thickness of the upper water-conducting layer and the lower water-conducting layer are both controlled between 0.1-0.3 mm, and the thickness of the water-locking and humidity-regulating layer is controlled between 0.5-2 mm.

[0015] Furthermore, the upper water-conducting layer and the lower water-conducting layer have the same thickness.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] The sheet-type humidity regulating structure of this utility model includes a bottom film layer, a lower water-guiding layer arranged on the top surface of the bottom film layer, a water-locking humidity regulating layer arranged on the top surface of the lower water-guiding layer, an upper water-guiding layer arranged on the top surface of the water-locking humidity regulating layer, and a semi-permeable membrane layer arranged on the top surface of the upper water-guiding layer. The areas of the lower water-guiding layer, the water-locking humidity regulating layer, and the upper water-guiding layer are all smaller than the areas of the semi-permeable membrane layer and the bottom film layer. The edges of the semi-permeable membrane layer and the bottom film layer are heat-pressed together to encapsulate the lower water-guiding layer, the water-locking humidity regulating layer, and the upper water-guiding layer between the semi-permeable membrane layer and the bottom film layer. The semi-permeable membrane layer is used to prevent water droplets from passing through and to allow water vapor to pass through. The upper water-guiding layer and the lower water-guiding layer are both used to guide water vapor passing through the semi-permeable membrane layer to the water-locking humidity regulating layer, and to guide water vapor discharged from the water-locking humidity regulating layer to the semi-permeable membrane layer. The water-locking humidity regulating layer is made of water-absorbing rubber and is used to regulate humidity and lock in water droplets. When the ambient humidity of the environment where this sheet-type humidity control structure is located is high, water vapor in the air enters the interior of the structure through the semi-permeable membrane layer, and is then conducted through the upper and lower water-conducting layers to the water-locking humidity control layer made of absorbent rubber. Finally, a large amount of water vapor or water droplets is captured and locked by the absorbent rubber, and no water flows out even when the absorbent rubber is saturated to its maximum absorbency. When the ambient humidity of the environment where this sheet-type humidity control structure is located is low, the water vapor locked inside the absorbent rubber is conducted through the upper and lower water-conducting layers to the semi-permeable membrane layer, and then transported to the air in the environment where the structure is located through the semi-permeable membrane layer. Therefore, this sheet-type humidity control structure can effectively control the humidity of the environment, has a high water absorption rate, and does not produce flowing water, thus greatly reducing the risk of leakage. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the layered structure of the plate-type humidity regulating structure in this utility model;

[0019] Figure 2 This is a schematic diagram of the packaged structure of the plate-type humidity control structure in this utility model;

[0020] Figure 3 for Figure 2 A cross-sectional structural diagram.

[0021] The following are the labels in the figure: 1. Sheet-type humidity control structure; 101. Bottom membrane layer; 102. Lower water-conducting layer; 103. Water-locking and humidity-controlling layer; 104. Upper water-conducting layer; 105. Semi-permeable membrane layer. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. These embodiments are only used to illustrate this utility model and are not intended to limit it.

[0023] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] like Figures 1-3 As shown, a sheet-type humidity-regulating structure includes a bottom membrane layer 101, a lower water-guiding layer 102 disposed on the top surface of the bottom membrane layer 101, a water-locking humidity-regulating layer 103 disposed on the top surface of the lower water-guiding layer 102, an upper water-guiding layer 104 disposed on the top surface of the water-locking humidity-regulating layer 103, and a semi-permeable membrane layer 105 disposed on the top surface of the upper water-guiding layer 104. The areas of the lower water-guiding layer 102, the water-locking humidity-regulating layer 103, and the upper water-guiding layer 104 are all smaller than the areas of the semi-permeable membrane layer 105 and the bottom membrane layer 101. The semi-permeable membrane layer 105 is heat-pressed to the edge of the bottom membrane layer 101. Together, the lower water-guiding layer 102, the water-locking and humidity-regulating layer 103, and the upper water-guiding layer 104 are encapsulated between the semi-permeable membrane layer 105 and the bottom membrane layer 101. The semi-permeable membrane layer 105 prevents water droplets from passing through while allowing water vapor to pass through. Both the upper water-guiding layer 104 and the lower water-guiding layer 102 guide water vapor passing through the semi-permeable membrane layer 105 to the water-locking and humidity-regulating layer 103, and guide water vapor discharged from the water-locking and humidity-regulating layer 103 to the semi-permeable membrane layer 105. The water-locking and humidity-regulating layer 103 is made of water-absorbing rubber and is used to regulate humidity and lock in water droplets to prevent the formation of flowing water. The semi-permeable membrane layer 105 and the bottom membrane layer 101 are heat-pressed together around their edges to form a sealed sheet-like humidity-regulating structure 1. The upper water-guiding layer 104 and the lower water-guiding layer 102 also have the functions of buffering pressure and preventing water flow. The water-absorbing rubber has a high water absorption rate.

[0027] When the ambient humidity of the environment where the sheet-type humidity control structure 1 is located is high, water vapor in the air enters the interior of the sheet-type humidity control structure 1 through the semi-permeable membrane layer 105, and is then conducted to the water-locking humidity control layer 103 made of water-absorbing rubber through the upper water-guiding layer 104 and the lower water-guiding layer 102. Finally, a large amount of water vapor or water droplets are captured and locked by the water-absorbing rubber, and no water will flow even when the water-absorbing rubber is saturated to its maximum absorption capacity. When the ambient humidity of the environment where the sheet-type humidity control structure 1 is located is low, the water vapor locked inside the water-absorbing rubber is conducted to the semi-permeable membrane layer 105 through the upper water-guiding layer 104 and the lower water-guiding layer 102, and then transmitted to the air in the environment where the sheet-type humidity control structure 1 is located through the semi-permeable membrane layer 105. Therefore, the sheet-type humidity control structure 1 can effectively control the humidity of the environment, has a high water absorption rate, and does not produce flowing water, thereby greatly reducing the risk of leakage.

[0028] In one embodiment, the lower water-conducting layer 102, the water-locking and humidity-regulating layer 103, and the upper water-conducting layer 104 have equal areas, and the semi-permeable membrane layer 105 has equal areas to the bottom membrane layer 101.

[0029] In one embodiment, the lower water-conducting layer 102 is located directly above the bottom membrane layer 101, the water-locking and humidity-regulating layer 103 is located directly above the lower water-conducting layer 102, the upper water-conducting layer 104 is located directly above the water-locking and humidity-regulating layer 103, and the semi-permeable membrane layer 105 is located directly above the upper water-conducting layer 104.

[0030] In one embodiment, the number of absorbent rubber sheets is one or more. Thus, by increasing or decreasing the number of absorbent rubber sheets, the water absorption rate of the sheet-type humidity-regulating structure 1 can be controlled.

[0031] Preferably, the absorbent rubber is an acrylate absorbent rubber.

[0032] In one embodiment, both the upper water-guiding layer 104 and the lower water-guiding layer 102 are made of polyester fiber cotton fabric. Two pieces of polyester fiber cotton fabric of the required size are obtained by cutting purchased polyester fiber cotton fabric rolls and used as the upper water-guiding layer 104 and the lower water-guiding layer 102, respectively.

[0033] In one embodiment, the semi-permeable membrane layer 105 is one of a polytetrafluoroethylene breathable membrane, a polyethylene-polypropylene composite breathable membrane, or a polytetrafluoroethylene-polyethylene composite breathable membrane.

[0034] Preferably, the semi-permeable membrane layer 105 is a polytetrafluoroethylene (PTFE)-polyethylene (PE) composite breathable membrane. The PTFE-PE composite breathable membrane of the required size is obtained by cutting purchased PTFE-PE composite breathable membrane rolls and used as the semi-permeable membrane layer 105.

[0035] In one embodiment, the bottom film layer 101 is a polyethylene terephthalate (PET) film. A polyethylene terephthalate (PET) film of the desired size is obtained by cutting a commercially available PET film roll and used as the bottom film layer 101, wherein the bottom film layer 101 has high-temperature resistance.

[0036] In one embodiment, the thickness of the semi-permeable membrane layer 105 is controlled between 0.05 and 0.2 mm, the thickness of the upper water-conducting layer 104 and the lower water-conducting layer 102 are both controlled between 0.1 and 0.3 mm, and the thickness of the water-locking and humidity-regulating layer 103 is controlled between 0.5 and 2 mm.

[0037] Preferably, the upper water guiding layer 104 and the lower water guiding layer 102 have the same thickness.

[0038] The sheet-type humidity control structure 1 of this utility model is reasonably designed, simple in structure, and has better humidity control capabilities. It can effectively control the humidity of the surrounding environment, and has high water absorption capacity without producing flowing water, thereby greatly reducing the risk of leakage. It can be used in the battery pack of new energy vehicles to effectively control the humidity of the internal environment of the battery pack, avoid condensation, and provide reliable humidity protection for the safe operation of the battery in the battery pack.

[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A sheet-type humidity control structure, characterized by: The system includes a bottom membrane layer (101), a lower water-guiding layer (102) disposed on the top surface of the bottom membrane layer (101), a water-locking and humidity-regulating layer (103) disposed on the top surface of the lower water-guiding layer (102), an upper water-guiding layer (104) disposed on the top surface of the water-locking and humidity-regulating layer (103), and a semi-permeable membrane layer (105) disposed on the top surface of the upper water-guiding layer (104). The areas of the lower water-guiding layer (102), the water-locking and humidity-regulating layer (103), and the upper water-guiding layer (104) are all smaller than the areas of the semi-permeable membrane layer (105) and the bottom membrane layer (101). The edges of the semi-permeable membrane layer (105) and the bottom membrane layer (101) are heat-pressed together. The lower water-conducting layer (102), the water-locking and humidity-regulating layer (103), and the upper water-conducting layer (104) are connected together to encapsulate the lower water-conducting layer (102), the water-locking and humidity-regulating layer (103), and the upper water-conducting layer (104) between the semi-permeable membrane layer (105) and the bottom membrane layer (101). The semi-permeable membrane layer (105) is used to prevent water droplets from passing through and to allow water vapor to pass through. The upper water-conducting layer (104) and the lower water-conducting layer (102) are both used to guide water vapor passing through the semi-permeable membrane layer (105) to the water-locking and humidity-regulating layer (103) and to guide water vapor discharged from the water-locking and humidity-regulating layer (103) to the semi-permeable membrane layer (105). The water-locking and humidity-regulating layer (103) is made of water-absorbing rubber and is used to regulate humidity and lock in water droplets.

2. The sheet-type humidity control structure according to claim 1, wherein: The lower water-conducting layer (102), the water-locking and humidity-regulating layer (103), and the upper water-conducting layer (104) have equal areas, and the semi-permeable membrane layer (105) has equal areas to the bottom membrane layer (101).

3. The sheet-type humidity control structure according to claim 1, wherein: The lower water-conducting layer (102) is located directly above the bottom membrane layer (101), the water-locking and humidity-regulating layer (103) is located directly above the lower water-conducting layer (102), the upper water-conducting layer (104) is located directly above the water-locking and humidity-regulating layer (103), and the semi-permeable membrane layer (105) is located directly above the upper water-conducting layer (104).

4. The sheet-type humidity control structure according to claim 1, wherein: The number of absorbent rubber sheets is one or more.

5. The sheet-type humidity control structure according to claim 4, wherein: The absorbent rubber is an acrylic absorbent rubber.

6. The sheet-type humidity control structure according to claim 1, wherein: Both the upper water-guiding layer (104) and the lower water-guiding layer (102) are made of polyester fiber cotton fabric.

7. The sheet-type humidity control structure according to claim 1, wherein: The semi-permeable membrane layer (105) is one of polytetrafluoroethylene breathable membrane, polyethylene-polypropylene composite breathable membrane, and polytetrafluoroethylene-polyethylene composite breathable membrane.

8. The sheet-type humidity control structure according to claim 1, wherein: The bottom film layer (101) is a polyethylene terephthalate (PET) film.

9. The sheet-type humidity control structure according to claim 1, wherein: The thickness of the semi-permeable membrane layer (105) is controlled between 0.05-0.2 mm, the thickness of the upper water-conducting layer (104) and the lower water-conducting layer (102) is controlled between 0.1-0.3 mm, and the thickness of the water-locking and humidity-regulating layer (103) is controlled between 0.5-2 mm.

10. The sheet-type humidity control structure according to claim 9, wherein: The upper water-conducting layer (104) and the lower water-conducting layer (102) have the same thickness.

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