A graphene heating bed sheet and bed cap

Abstract

The utility model relates to a kind of graphene heating bed sheet and bed cover, belong to bedding technical field.Graphene heating bed sheet includes bed sheet body, the top surface of the bed mattress is covered by the bed sheet body;The bed sheet body includes upper fabric layer, lower fabric layer, and the heating layer between the upper fabric layer and the lower fabric layer;Wherein, the heating layer side towards the upper fabric layer is detachably provided with multiple graphene heating sheet, multiple the graphene heating sheet is arranged in matrix form.The graphene heating bed sheet of the utility model, through the graphene heating sheet arranged in matrix form detachably on heating layer;Graphene heating sheet matrix arrangement mode can make the heating area distribution on bed sheet more uniform, improve heating effect;The detachable mode of graphene heating sheet makes graphene heating sheet can be quickly and conveniently removed or mounted, reduces maintenance cost and difficulty.

Description

Technical Field

[0001] This utility model belongs to the field of bedding technology, specifically relating to a graphene heated bed sheet and fitted sheet. Background Technology

[0002] In the cold winter, people usually use various methods to keep warm; especially at night, in order to drive away the cold, the heating methods commonly used by people at present mainly include air conditioning heating, central heating, electric blankets or electric mattresses heated by electricity, etc.

[0003] Graphene heated sheets have recently appeared on the market, solving the problem of sheets not keeping warm by using a graphene heating film. However, existing graphene heated sheets have a drawback: the graphene heating element is integrated with the sheet, and removing the heating element would cause damage to the sheet, making it difficult to maintain or replace the heating element. Utility Model Content

[0004] To address the problem that existing graphene heating elements are integrated with bed sheets, removing the graphene heating element would cause destructive damage to the graphene-heated bed sheet, hindering maintenance or replacement, this invention provides a graphene-heated bed sheet and fitted sheet.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] In a first aspect, the present invention provides a graphene heated bed sheet, comprising a bed sheet body for covering the top surface of a mattress; the bed sheet body includes an upper fabric layer, a lower fabric layer, and a heating layer located between the upper fabric layer and the lower fabric layer; wherein, a plurality of graphene heating elements are detachably disposed on the side of the heating layer facing the upper fabric layer, and the plurality of graphene heating elements are arranged in a matrix.

[0007] In a preferred embodiment of this utility model, a heating circuit is provided in the heating layer, and a plurality of graphene heating sheets are electrically connected to the heating circuit; the heating circuit is electrically connected to a controller, and the controller is provided with a power connector for connecting to an external power source.

[0008] In a preferred embodiment of the present invention, the heating circuit includes a plurality of positive electrode sockets and a plurality of negative electrode sockets disposed on the side of the heating layer facing the upper material layer, the graphene heating sheet having a positive terminal corresponding to the positive electrode sockets and the graphene heating sheet having a negative terminal corresponding to the negative electrode sockets.

[0009] In a preferred embodiment of this utility model, a first permanent magnet material is disposed on the side of the heating layer facing the upper fabric layer, and a second permanent magnet material is disposed on the side of the graphene heating sheet facing the heating layer, wherein the first permanent magnet material and the second permanent magnet material are magnetically attracted to each other.

[0010] In a preferred embodiment of the present invention, the heating circuit further includes a plurality of diaphragm strain gauge pressure sensors disposed on the side of the heating layer facing the lower fabric layer, wherein the plurality of strain gauge pressure sensors and the plurality of graphene heating sheets are disposed one-to-one in the normal direction of the heating layer.

[0011] In a preferred embodiment of this utility model, the strain gauge pressure sensor is electrically connected to the controller, and the controller controls the corresponding graphene heating element to be powered on or off according to the electrical signal of the strain gauge pressure sensor.

[0012] In a preferred embodiment of this utility model, the controller includes a plurality of comparators, each comparator corresponding to a strain gauge pressure sensor. The strain gauge pressure sensor is electrically connected to the non-inverting input terminal of the corresponding comparator, and a reference resistor is electrically connected to the inverting input terminal of the comparator. The output terminal of the comparator is electrically connected to the controller. The resistance of the strain gauge pressure sensor is positively correlated with the pressure it senses, and the resistance of the reference resistor is the same as the resistance of the strain gauge pressure sensor when it is at a preset pressure.

[0013] In a preferred embodiment of this utility model, the upper fabric layer and the lower fabric layer have the same area, and the heating layer has an area smaller than the areas of the upper fabric layer and the lower fabric layer;

[0014] The lower fabric layer has a first hook and loop fastener in the area corresponding to the heating layer, and the heating layer has a second hook and loop fastener in the area corresponding to the heating layer. The first hook and loop fastener and the second hook and loop fastener are detachably attached. The lower fabric layer has a third hook and loop fastener in the area corresponding to the upper fabric layer, and the upper fabric layer has a fourth hook and loop fastener in the area corresponding to the lower fabric layer. The third hook and loop fastener and the fourth hook and loop fastener are detachably attached.

[0015] In a preferred embodiment of this utility model, a fifth hook and loop fastener is provided on the heating layer in the area corresponding to the upper fabric layer, and a sixth hook and loop fastener is provided on the upper fabric layer in the area corresponding to the heating layer, wherein the fifth hook and loop fastener and the sixth hook and loop fastener are detachably attached.

[0016] Secondly, this utility model provides a graphene heated mattress protector, including the graphene heated mattress sheet described in the first aspect, wherein a mattress surround extends downward from the outer periphery of the lower fabric layer, and the mattress surround is used to cover the sides of the mattress.

[0017] The beneficial effects of this utility model are as follows:

[0018] This solution uses a matrix arrangement of detachable graphene heating elements on the heating layer. This matrix arrangement of the graphene heating elements ensures a more uniform distribution of heating areas on the bed sheet, improving the heating effect. The detachable nature of the graphene heating elements allows them to be quickly and easily removed or installed, reducing maintenance costs and difficulties. Attached Figure Description

[0019] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a cross-sectional view of a graphene heated bed sheet according to the present invention.

[0021] Figure 2 This is a schematic diagram of the front structure of the heating layer of a graphene heated bed sheet according to this utility model;

[0022] Figure 3 This is a schematic diagram of the back structure of the heating layer of a graphene heated bed sheet according to this utility model;

[0023] Figure 4 This is a schematic diagram of the separation structure of the heating layer and the graphene heating sheet in a graphene heated bed sheet according to this utility model.

[0024] Figure 5 This is a schematic diagram of the connection circuit of a strain gauge pressure sensor, reference resistor, comparator, and controller for a graphene heated bed sheet according to this utility model.

[0025] Figure 6 This is a schematic diagram of the lower fabric layer structure of a graphene heated bed sheet according to this utility model;

[0026] Figure 7 This is a schematic diagram of the upper fabric layer structure of a graphene heated bed sheet according to this utility model;

[0027] Figure 8 This is a cross-sectional view of a graphene heating bed cover according to the present invention.

[0028] Explanation of main symbols

[0029] In the picture:

[0030] 10. Top fabric layer; 11. Fourth hook and loop fastener; 12. Sixth hook and loop fastener; 20. Heating layer; 21. Graphene heating element; 211. Positive terminal; 212. Negative terminal; 22. Heating circuit; 221. Positive socket; 222. Negative socket; 223. Strain gauge pressure sensor; 224. Comparator; 225. Reference resistor; 23. Controller; 24. Second hook and loop fastener; 25. Fifth hook and loop fastener; 30. Bottom fabric layer; 31. First hook and loop fastener; 32. Third hook and loop fastener; 40. Bed surround. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0033] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] Please see Figures 1-4 This embodiment provides a graphene heated bed sheet, including a bed sheet body for covering the top surface of a mattress; the bed sheet body includes an upper fabric layer 10, a lower fabric layer 30, and a heating layer 20 located between the upper fabric layer 10 and the lower fabric layer 30; wherein, a plurality of graphene heating elements 21 are detachably disposed on the side of the heating layer 20 facing the upper fabric layer 10, and the plurality of graphene heating elements 21 are arranged in a matrix.

[0039] Understandably, the bed sheet consists of an upper fabric layer 10, a lower fabric layer 30, and a heating layer 20. Multiple graphene heating elements 21 are detachably mounted on the side of the heating layer 20 facing the upper fabric layer 10, arranged in a matrix. This structural design utilizes the excellent electrical and thermal conductivity of graphene; when current passes through the graphene heating elements 21, they generate heat, thus achieving the function of heating and keeping the bed sheet warm. Simultaneously, the matrix arrangement allows for a more uniform distribution of the heating area on the bed sheet, improving the heating effect.

[0040] In use, first place the sheet over the mattress, ensuring the heating layer 20, where the graphene heating elements 21 are installed, is positioned correctly. Power the heating circuit 22 via an external power source. Current is transferred through the circuit to each graphene heating element 21, causing them to heat up. The heat is then transferred through the upper fabric layer 10 to the sheet surface, providing a warm and comfortable sleeping environment. When maintenance or replacement of the graphene heating elements 21 is needed, they can be easily removed from the heating layer 20 without damaging the sheet. After maintenance or replacement, new graphene heating elements 21 are installed on the heating layer 20 in a matrix arrangement, and normal use can resume.

[0041] The detachable arrangement of the graphene heating element 21 and the heating layer 20 can be achieved in various ways, such as magnetic connection, snap-on connection or plug-in connection.

[0042] Furthermore, a heating circuit 22 is provided within the heating layer 20, and multiple graphene heating elements 21 are electrically connected to the heating circuit 22; the heating circuit 22 is electrically connected to a controller 23, and the controller 23 is provided with a power connector for connecting to an external power source.

[0043] It is understood that a heating circuit 22 is provided within the heating layer 20, and multiple graphene heating elements 21 are electrically connected to this heating circuit 22, forming a complete electrical loop. The heating circuit 22 is then connected to a controller 23, which, as the core control unit, can regulate the entire heating process. The controller 23 is equipped with a power connector for connecting to an external power source, introducing external electrical energy into the entire heating system to provide the power required for the graphene heating elements 21 to operate. When current passes through the graphene heating elements 21, the resistive characteristics of the graphene material cause it to convert electrical energy into heat energy, thereby achieving the heating function. The controller 23 can control the on / off state and current magnitude of the heating circuit 22, thereby controlling the heating power and operating status of the graphene heating elements 21.

[0044] Specifically, during use, the controller 23 is connected to an external power source via the power connector, providing electrical energy to the entire heating system. The controller 23 can send corresponding commands to the heating circuit 22 based on preset control logic or externally input control signals (such as the electrical signal transmitted by the strain gauge pressure sensor 223 described later). Upon receiving the command, the heating circuit 22 controls the current to flow to the corresponding graphene heating element 21 according to the set path and intensity. The graphene heating element 21 is energized and generates heat, which is then transferred to the surface of the bed sheet through the upper fabric layer 10, providing warmth to the user. Throughout the entire operation, the controller 23 can monitor and regulate the working status of the heating circuit 22 in real time, ensuring that the graphene heating element 21 operates under safe and stable conditions, achieving uniform heating and temperature control of the bed sheet.

[0045] In some embodiments, the heating circuit 22 includes a plurality of positive terminals 221 and a plurality of negative terminals 222 disposed on the side of the heating layer 20 facing the upper surface layer 10. A graphene heating element 21 is provided with a positive terminal 211 corresponding to the positive terminal 221, and a negative terminal 212 corresponding to the negative terminal 222. The graphene heating element 21 can be precisely connected to the positive and negative terminals 222 on the heating layer 20 via its positive and negative terminals 212, thereby achieving an electrical connection between the graphene heating element 21 and the heating circuit 22. When current flows from the positive terminal 221 into the positive terminal 211 of the graphene heating element 21, then flows through the internal circuitry of the graphene heating element 21 to the negative terminal 212, and finally flows out from the negative terminal 222 back to the heating circuit 22, the graphene heating element 21 is energized and generates heat.

[0046] Specifically, in actual operation, firstly, align the positive terminal 211 and negative terminal 212 of the graphene heating element 21 with the positive and negative terminals 221 and 222 on the heating layer 20, respectively, insert and secure them in place, completing the electrical connection between the graphene heating element 21 and the heating circuit 22. Then, the controller 23 provides power to the heating circuit 22, and the current flows into the graphene heating element 21 through the positive terminal 221, causing the graphene heating element 21 to heat up. The generated heat is transferred to the upper fabric layer 10, providing warmth to the user. When it is necessary to disassemble the graphene heating element 21, simply pull the positive terminal 211 and negative terminal 212 out of their corresponding positive and negative terminals 221 and 222. The operation is simple and quick, and will not damage the bed sheet or the graphene heating element 21. Throughout the entire operation, the close cooperation between the positive terminal 221, the negative terminal 222 and the positive terminal 211, the negative terminal 212 ensures stable current transmission, enabling the graphene heating element 21 to work normally and efficiently.

[0047] In some embodiments, a first permanent magnet material is disposed on the side of the heating layer 20 facing the upper fabric layer 10, and a second permanent magnet material is disposed on the side of the graphene heating sheet 21 facing the heating layer 20. The first permanent magnet material and the second permanent magnet material are magnetically attracted to each other.

[0048] Understandably, when the graphene heating element 21 is installed on the heating layer 20, the second permanent magnet material will attract the first permanent magnet material, thereby generating an adsorption force to fix the graphene heating element 21 on the heating layer 20. At the same time, since magnetic adsorption is a non-permanent fixing method, the magnetic attraction force can be overcome by applying appropriate external force to remove the heating element, facilitating maintenance or replacement.

[0049] Furthermore, when installing the graphene heating element 21, first align its positive terminal 211 and negative terminal 212 with the positive and negative terminals 221 and 222 respectively on the heating layer 20, insert and fix it in place to complete the electrical connection. Simultaneously, the second permanent magnet material on the graphene heating element 21 will automatically attract the first permanent magnet material on the heating layer 20, further fixing the graphene heating element 21 to the heating layer 20, ensuring that the graphene heating element 21 will not shift or loosen when powered on. When it is necessary to disassemble the graphene heating element 21, apply appropriate force to lift or pull the graphene heating element 21 from the heating layer 20. After overcoming the magnetic attraction, the graphene heating element 21, along with its positive and negative terminals 212, can be pulled out from the corresponding terminals to complete the disassembly. Throughout the entire operation, the magnetic attraction force always acts on the graphene heating element 21, ensuring its stable installation on the heating layer 20, while the electrical connection remains in good condition, enabling the graphene heating element 21 to generate heat normally and provide warmth to the user.

[0050] Furthermore, the strain gauge pressure sensor 223 is electrically connected to the controller 23, and the controller 23 controls the corresponding graphene heating element 21 to be powered on or off according to the electrical signal of the strain gauge pressure sensor 223.

[0051] In this embodiment, multiple diaphragm-type strain gauge pressure sensors 223 are disposed on the side of the heating layer 20 facing the underlying fabric layer 30, and correspond one-to-one with multiple graphene heating elements 21 in the normal direction of the heating layer 20. When a person lies on the sheet, different parts of the body (such as the head, shoulders, waist, legs, etc.) will come into contact with the sheet and exert pressure on it. This pressure acts on the strain gauge pressure sensors 223, causing them to deform and thus change their resistance value. The magnitude and location of the pressure can be determined based on the magnitude of the resistance change. The strain gauge pressure sensors 223 convert this resistance change into an electrical signal and transmit it to the controller 23. The controller 23 analyzes and processes the received electrical signal, determines the distribution of the human body and the pressure magnitude of each part, and then sends an on or off signal to the corresponding graphene heating element 21 according to the preset control logic to achieve precise heating control. The graphene heating element 21 is only powered on and heated when pressure is applied to the corresponding part of the body. Graphene heating elements 21 without pressure remain de-energized, thus effectively saving energy. For example, if the user lies only on the right side of the bed, the strain gauge pressure sensor 223 on the right side will sense the pressure, and the controller 23 will activate the right-side graphene heating element 21, while the left-side graphene heating element 21 remains de-energized. As the user turns over or changes position during sleep, the strain gauge pressure sensor 223 can sense changes in pressure distribution in real time and transmit the new pressure signal to the controller 23. The controller 23 continuously adjusts the control of the graphene heating elements 21 based on the real-time pressure signal, ensuring that only the graphene heating elements 21 in the area in contact with the body are working, achieving dynamic, on-demand heating control, maximizing energy savings, and providing a comfortable user experience.

[0052] To further enhance the user experience, a corresponding user interface can be designed, such as a mobile app or bedside control panel, allowing users to intuitively view information such as the heating status and pressure distribution of the sheets, and manually adjust the heating areas and temperature according to personal preferences. Simultaneously, features such as timer on / off, sleep mode, and wake-up mode can be set in the mobile app or bedside control panel, making it more convenient for users to use the graphene-heated sheets, improving product usability and user satisfaction.

[0053] like Figure 5As shown, in some embodiments, the controller 23 includes a plurality of comparators 224, each of which is configured in correspondence with a strain gauge pressure sensor 223. The strain gauge pressure sensor 223 is electrically connected to the non-inverting input terminal of the corresponding comparator 224, and a reference resistor 225 is electrically connected to the inverting input terminal of the comparator 224. The output terminal of the comparator 224 is electrically connected to the controller 23. The resistance value of the strain gauge pressure sensor 223 is positively correlated with the pressure it senses, and the resistance value of the reference resistor 225 is the same as the resistance value of the strain gauge pressure sensor 223 when it is at a preset pressure.

[0054] It should be explained that when the pressure sensed by the strain gauge pressure sensor 223 reaches or exceeds the preset pressure, its resistance change causes a difference between the electrical signal input to the non-inverting input of the comparator 224 and the reference electrical signal input to the inverting input. The comparator 224 will output a corresponding control signal based on this difference, instructing the graphene heating element 21 to be energized or de-energized. Specifically, the high-level or low-level signal output by the comparator 224 is transmitted to the execution circuit of the controller 23. The controller 23 controls the corresponding graphene heating element 21 to be energized or de-energized according to the signal type. If a high-level signal is output, the circuit of the corresponding graphene heating element 21 is turned on, causing it to start heating; if a low-level signal is output, the circuit of the corresponding graphene heating element 21 is turned off, stopping heating.

[0055] like Figure 6 , Figure 7 As shown, in some embodiments, the upper fabric layer 10 and the lower fabric layer 30 have the same area, and the heating layer 20 has an area smaller than the areas of the upper fabric layer 10 and the lower fabric layer 30. The lower fabric layer 30 has a first hook and loop fastener 31 corresponding to the area of ​​the heating layer 20, and the heating layer 20 has a second hook and loop fastener 24 corresponding to the area of ​​the heating layer 20. The first hook and loop fastener 31 and the second hook and loop fastener 24 are detachably attached. The lower fabric layer 30 has a third hook and loop fastener 32 corresponding to the area of ​​the upper fabric layer 10, and the upper fabric layer 10 has a fourth hook and loop fastener 11 corresponding to the area of ​​the lower fabric layer 30. The third hook and loop fastener 32 and the fourth hook and loop fastener 11 are detachably attached.

[0056] It should be explained that the upper fabric layer 10 and the lower fabric layer 30 have the same area, and the area is larger than that of the heating layer 20. This allows the heating layer 20 to be completely wrapped by the upper fabric layer 10 and the lower fabric layer 30, protecting the heating layer 20 without affecting the overall appearance of the bed sheet. The lower fabric layer 30 is in contact with the mattress, providing support; the upper fabric layer 10 is in direct contact with the body, ensuring comfort; the heating layer 20 is located in the middle and is responsible for generating heat. At the same time, the heating layer 20, as well as the upper fabric layer 10 and the lower fabric layer 30, can be easily installed or removed through the application and removal of Velcro. The first Velcro 31 and the second Velcro 24 ensure that the heating layer 20 is firmly fixed to the lower fabric layer 30 during use, preventing the heating layer 20 from shifting or loosening, and ensuring the uniformity and stability of the heating effect; the third Velcro 32 and the fourth Velcro 11 allow the upper fabric layer 10 to be tightly attached to the lower fabric layer 30, forming a complete bed sheet structure, while also making it easy for the user to open the upper fabric layer 10 when needed for maintenance or replacement of the heating layer 20.

[0057] Specifically, in the assembly process of the graphene heated bed sheet, the lower fabric layer 30 is first laid flat on the bed, adhering to the mattress. Then, the second Velcro 24 on the heated layer 20 is aligned with the first Velcro 31 on the lower fabric layer 30 and fastened, ensuring that the heated layer 20 is smoothly fixed to the lower fabric layer 30. Next, the fourth Velcro 11 on the upper fabric layer 10 is aligned with the third Velcro 32 on the lower fabric layer 30 and fastened, completing the overall assembly of the bed sheet. At this point, the heated layer 20 is located between the lower fabric layer 30 and the upper fabric layer 10, remaining concealed and not affecting the overall aesthetics of the bed sheet. When maintenance or replacement of the heating layer 20 is required, first separate the fourth hook and loop fastener 11 on the upper fabric layer 10 from the third hook and loop fastener 32 on the lower fabric layer 30, open the upper fabric layer 10 to expose the heating layer 20; then, separate the second hook and loop fastener 24 on the heating layer 20 from the first hook and loop fastener 31 on the lower fabric layer 30 to remove the heating layer 20 from the lower fabric layer 30; after maintenance or replacement, reinstall the heating layer 20 and the upper fabric layer 10 back onto the lower fabric layer 30 for continued use.

[0058] In some embodiments, a fifth hook and loop fastener 25 is provided on the area of ​​the heating layer 20 corresponding to the upper fabric layer 10, and a sixth hook and loop fastener 12 is provided on the area of ​​the upper fabric layer 10 corresponding to the heating layer 20. The fifth hook and loop fastener 25 and the sixth hook and loop fastener 12 are detachably attached.

[0059] Based on the previous embodiment, this embodiment adds a fixing point between the heating layer 20 and the upper fabric layer 10. A fifth hook and loop fastener 25 is provided in the area of ​​the heating layer 20 corresponding to the upper fabric layer 10, and a sixth hook and loop fastener 12 is provided in the area of ​​the upper fabric layer 10 corresponding to the heating layer 20. The fifth hook and loop fastener 25 and the sixth hook and loop fastener 12 cooperate with each other, and through the sticking and separating of the hook and loop fasteners, a detachable connection between the heating layer 20 and the upper fabric layer 10 is achieved, further enhancing the stability of the heating layer 20, and also providing users with a more flexible operating method.

[0060] like Figure 8 As shown, this utility model provides a graphene heated mattress cover, including the graphene heated sheet as described above, with a mattress surround 40 extending downward from the outer periphery of the lower fabric layer 30, which is used to cover the sides of the mattress.

[0061] Optionally, the mattress protector 40 is made of the same or similar material as the undersheet layer 30 and is integrated with it. Utilizing the elasticity and stretchability of the mattress protector 40, it tightly wraps around the sides of the mattress, completely covering the top, bottom, and sides. During installation, the fitted sheet is placed over the mattress, with the mattress protector 40 naturally draped over the sides. The upper sheet layer 10 is positioned on top of the mattress, the heating layer 20 is in the middle, and the lower sheet layer 30 contacts the bottom of the mattress. The wrapping action of the mattress protector 40 ensures a tight fit between the fitted sheet and the mattress, preventing the sheet from shifting and guaranteeing the proper functioning of the heating system.

[0062] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A graphene heated bed sheet characterized by: The device includes a sheet body for covering the top surface of a mattress; the sheet body includes an upper fabric layer, a lower fabric layer, and a heating layer located between the upper fabric layer and the lower fabric layer; wherein, the heating layer has a plurality of graphene heating elements detachably disposed on the side facing the upper fabric layer, and the plurality of graphene heating elements are arranged in a matrix.

2. The graphene heating bed sheet according to claim 1, characterized in that: A heating circuit is provided within the heating layer, and multiple graphene heating elements are electrically connected to the heating circuit; the heating circuit is electrically connected to a controller, and the controller is provided with a power connector for connecting to an external power source.

3. The graphene heating bed sheet according to claim 2, characterized in that: The heating circuit includes a plurality of positive terminals and a plurality of negative terminals disposed on the side of the heating layer facing the upper material layer. The graphene heating element is provided with a positive terminal corresponding to the positive terminal and a negative terminal corresponding to the negative terminal.

4. The graphene heated bed sheet according to claim 3, characterized in that: The heating layer has a first permanent magnet material on the side facing the upper material layer, and the graphene heating sheet has a second permanent magnet material on the side facing the heating layer. The first permanent magnet material and the second permanent magnet material are magnetically attracted to each other.

5. The graphene heated bed sheet according to claim 3, characterized in that: The heating circuit also includes a plurality of diaphragm-type strain gauge pressure sensors disposed on the side of the heating layer facing the lower fabric layer, wherein the plurality of strain gauge pressure sensors and the plurality of graphene heating elements are disposed one-to-one in the normal direction of the heating layer.

6. The graphene heated bed sheet according to claim 5, characterized in that: The strain gauge pressure sensor is electrically connected to the controller, and the controller controls the corresponding graphene heating element to be powered on or off according to the electrical signal of the strain gauge pressure sensor.

7. The graphene heated bed sheet according to claim 5, characterized in that: The controller includes multiple comparators, each corresponding to a strain gauge pressure sensor. Each strain gauge pressure sensor is electrically connected to the positive input terminal of its corresponding comparator. A reference resistor is electrically connected to the inverting input terminal of each comparator, and the output terminal of each comparator is electrically connected to the controller. The resistance of the strain gauge pressure sensor is positively correlated with the pressure it senses, and the resistance of the reference resistor is the same as the resistance of the strain gauge pressure sensor when it is at a preset pressure.

8. The graphene heated bed sheet according to claim 1, characterized in that: The upper fabric layer and the lower fabric layer have the same area, and the heating layer has an area smaller than the areas of the upper fabric layer and the lower fabric layer. The lower fabric layer has a first hook and loop fastener in the area corresponding to the heating layer, and the heating layer has a second hook and loop fastener in the area corresponding to the heating layer. The first hook and loop fastener and the second hook and loop fastener are detachably attached. The lower fabric layer has a third hook and loop fastener in the area corresponding to the upper fabric layer, and the upper fabric layer has a fourth hook and loop fastener in the area corresponding to the lower fabric layer. The third hook and loop fastener and the fourth hook and loop fastener are detachably attached.

9. The graphene heated bed sheet according to claim 8, characterized in that: The heating layer has a fifth hook and loop fastener in the area corresponding to the upper fabric layer, and the upper fabric layer has a sixth hook and loop fastener in the area corresponding to the heating layer. The fifth hook and loop fastener and the sixth hook and loop fastener can be detachably attached.

10. A graphene-heated bed sheet, characterized in that: The graphene heated bed sheet according to any one of claims 1-9, wherein a bed surround extends downward from the outer periphery of the lower fabric layer, the bed surround being used to cover the sides of the mattress.

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