A flexible thermal insulation panel
By installing a cooling fan and air vents at the bottom of the graphene heating pad in the flexible insulation board, the problem of the graphene heating film burning the desktop at high temperatures is solved, and the flexible insulation board can be used safely.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG WILLING TECH CORP
- Filing Date
- 2025-04-03
- Publication Date
- 2026-05-29
AI Technical Summary
Existing flexible insulation boards, which use graphene heating films for high-temperature heating, are prone to scalding the tabletop.
A flexible heating pad including a graphene heating film was designed, and a cooling fan and air outlet were set at its bottom. The cooling air generated by the cooling fan blows from the side to the bottom of the heating pad to reduce the temperature.
It effectively prevents the bottom of the heating pad from burning the desktop, protecting the desktop's safety.
Smart Images

Figure CN224291750U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of insulation board technology, and in particular to a flexible insulation board. Background Technology
[0002] Insulated boards, also known as food warming boards, can heat or maintain the temperature of food. However, existing flexible insulation boards use graphene heating films for high-temperature heating, which generates a lot of heat and can easily burn the tabletop. Utility Model Content
[0003] The purpose of this utility model is to provide a flexible insulation board to solve the technical problem in the prior art where the flexible insulation board uses a graphene heating film for high-temperature heating, resulting in a large amount of heat generated by the graphene heating film, which can easily burn the table surface downwards.
[0004] To achieve the above objectives, the present invention provides a flexible insulation board, comprising a first heating pad, wherein a graphene heating film is disposed inside the first heating pad, and a control box is disposed on one side edge of the first heating pad. The first heating pad is a flexible pad. The control box includes an upper cover and a lower cover, and a power socket, a control panel, and a cooling fan are disposed between the upper cover and the lower cover. The power socket is electrically connected to the graphene heating film, the control panel, and the cooling fan. An air outlet is disposed on the side of the lower cover near the bottom of the first heating pad, and the cooling fan cooperates with the air outlet to cool the bottom of the first heating pad.
[0005] Furthermore, an air inlet is provided on the side of the lower cover away from the bottom of the first heating pad, and the cooling fan cooperates with the air inlet.
[0006] Furthermore, a plurality of cooling fans are distributed sequentially along the length of the lower cover, a plurality of air outlets are distributed sequentially along the length of the lower cover, and a plurality of air inlets are distributed sequentially along the length of the lower cover.
[0007] Furthermore, the bottom of the first heating pad is provided with several downward protruding first foot pads.
[0008] Furthermore, the first heating pad is a silicone pad.
[0009] Furthermore, the control panel is equipped with a digital tube display, and the upper cover is equipped with a display cover, through which the digital tube display can be shown to the outside.
[0010] Furthermore, a faceplate is provided between the top cover and the display faceplate, and an opening is provided on one side of the faceplate, through which the digital tube display can sequentially display to the outside through the opening and the display faceplate.
[0011] Furthermore, the flexible insulation board also includes a second heating pad, the control box is connected between the first heating pad and the second heating pad, the second heating pad has a heating wire inside, the second heating pad is a flexible pad, and the power socket is electrically connected to the heating wire.
[0012] Furthermore, the second heating pad is a silicone pad, and the bottom of the second heating pad is provided with a wire mounting groove. The heating wire is fitted with a silicone sleeve, and the heating wire is inserted into the wire mounting groove. The bottom of the silicone sleeve protrudes to the outside of the wire mounting groove. The silicone sleeve and the wire mounting groove are integrally formed by heat fusion. The bottom of the second heating pad is provided with several downward protruding second foot pads.
[0013] Furthermore, two temperature controllers and a temperature control switch are provided between the upper cover and the lower cover. The two temperature controllers are electrically connected to the graphene heating film and the heating wire, respectively. The control panel is electrically connected to the cooling fan, the temperature controllers, and the temperature control switch.
[0014] In summary, the technical solution of this utility model has the following beneficial effects: The structure of this utility model is reasonable. (1) It includes a first heating pad, the interior of which is provided with a graphene heating film, and a control box is provided on one side edge of the first heating pad. The first heating pad is a flexible pad. Thus, the graphene heating film can generate enough heat to heat the food or keep the food at a constant temperature. The use of the flexible pad allows the flexible insulation board to be rolled up and stored. (2) The control box includes an upper cover and a lower cover. A power socket, a control panel, and a cooling fan are provided between the upper cover and the lower cover. The power socket is electrically connected to the graphene heating film, the control panel, and the cooling fan. Thus, the power socket can be used to supply power to the graphene heating film, the control panel, and the cooling fan. The control panel can provide control for the flexible insulation board. (3) An air outlet is provided on the side of the lower cover near the bottom of the first heating pad. A cooling fan works in conjunction with the air outlet to cool the bottom of the first heating pad. This allows the cooling fan to generate cooling air, which is then blown from the side through the air outlet to the bottom of the first heating pad, thus cooling and preventing the bottom of the first heating pad from exploding. This prevents the desktop below the first heating pad from being burned and protects the desktop. Therefore, this invention can use the cooling fan in the control box to blow air from the side onto the bottom of the first heating pad, achieving cooling and explosion prevention. Attached Figure Description
[0015] Figure 1 This is an exploded structural diagram of the present invention;
[0016] Figure 2 yes Figure 1 A magnified view of the central region;
[0017] Figure 3 This is a three-dimensional structural diagram of the present invention when it is placed upright;
[0018] Figure 4 This is a three-dimensional structural diagram of the present invention when it is inverted;
[0019] Explanation of reference numerals in the attached figures:
[0020] First heating pad (1), second heating pad (2), control box (3), silicone sleeve (4); first foot pad (101), second foot pad (201), wiring channel (202); upper cover (301), lower cover (302), power socket (303), control panel (304), cooling fan (305), air outlet (306), air inlet (307), digital tube display (308), display cover (309), faceplate (3010), opening (3011), temperature controller (3012), temperature control switch (3013). Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, but this does not constitute a limitation on the scope of protection of the present utility model.
[0022] In this utility model, for clearer description, the following explanation is provided: The observer faces the attached... Figure 1 When observing, the observer above is designated as "up" and the observer below as "down." It should be noted that the terms "front end," "rear end," "left side," "right side," "middle," "above," and "below," etc., used in this document to indicate orientation or positional relationships are based on the accompanying drawings and are solely for the purpose of clearly describing this utility model. They do not indicate or imply that the structure or component referred to must have a specific orientation or be constructed in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," and "fourth" are used only for the purpose of clarity or simplification of description and should not be construed as indicating or implying relative importance or quantity.
[0023] See Figures 1 to 4This embodiment provides a flexible insulation board, including a first heating pad 1. The first heating pad 1 has a graphene heating film inside, and a control box 3 is provided on one side edge of the first heating pad 1. The first heating pad 1 is a flexible pad. The control box 3 includes an upper cover 301 and a lower cover 302. A power socket 303, a control panel 304, and a cooling fan 305 are provided between the upper cover 301 and the lower cover 302. The power socket 303 is electrically connected to the graphene heating film, the control panel 304, and the cooling fan 305. An air outlet 306 is provided on the side of the lower cover 302 near the bottom of the first heating pad 1. The cooling fan 305 cooperates with the air outlet 306 so that the cooling fan 305 can cool the bottom of the first heating pad 1. Functions: (1) The first heating pad is a flexible pad, which contains a graphene heating film and a control box on one side edge. The graphene heating film generates enough heat to heat or keep the food at a constant temperature. The flexible pad allows the flexible insulation board to be rolled up and stored. (2) The control box includes an upper cover and a lower cover. A power socket, a control panel, and a cooling fan are located between the upper and lower covers. The power socket is electrically connected to the graphene heating film, the control panel, and the cooling fan. The power socket provides power to the graphene heating film, the control panel, and the cooling fan. The control panel provides control for the flexible insulation board. (3) An air outlet is provided on the side of the lower cover near the bottom of the first heating pad. A cooling fan works in conjunction with the air outlet to cool the bottom of the first heating pad. This allows the cooling fan to generate cooling air, which is then blown from the side through the air outlet to the bottom of the first heating pad, thus cooling and preventing the bottom of the first heating pad from exploding. This prevents the desktop below the first heating pad from being burned and protects the desktop. Therefore, this invention can use the cooling fan in the control box to blow air from the side onto the bottom of the first heating pad, achieving cooling and explosion prevention.
[0024] Specifically, an air inlet 307 is provided on the side of the lower cover 302 away from the bottom of the first heating pad 1, and the cooling fan 305 cooperates with the air inlet 307. Function: The air inlet 3011 can provide airflow for the cooling fan 305.
[0025] Specifically, several cooling fans 305 are distributed sequentially along the length of the lower cover 302, several air outlets 306 are distributed sequentially along the length of the lower cover 302, and several air inlets 307 are distributed sequentially along the length of the lower cover 302. Function: The multiple cooling fans can blow air to cool down multiple locations on the bottom of the first heating pad 1.
[0026] Specifically, the bottom of the first heating pad 1 is provided with several downwardly protruding first foot pads 101. Function: The first foot pads 101 support the first heating pad 1, thereby accelerating the airflow rate below the first heating pad 1.
[0027] Specifically, the first heating pad 1 is a silicone pad. Function: The silicone pad has good thermal conductivity and flexibility.
[0028] Specifically, the control panel 304 is equipped with a digital tube display 308, and the top cover 301 is equipped with a display cover 309. The digital tube display 308 can display externally through the display cover 309. Function: The digital tube display 308 can display the corresponding working data of the control panel 304, and the display cover 309 can facilitate viewing and protect the digital tube display 308.
[0029] Specifically, a faceplate 3010 is provided between the top cover 301 and the display faceplate 309, and an opening 3011 is provided on one side of the faceplate 3010. The digital tube display 308 can be displayed outward through the opening 3011 and the display faceplate 309 in sequence. Function: The opening 3011 facilitates the outward display of the digital tube display 308.
[0030] Specifically, the flexible insulation board also includes a second heating pad 2. A control box 3 is connected between the first heating pad 1 and the second heating pad 2. The second heating pad 2 has heating wires inside. The second heating pad 2 is a flexible pad, and the power supply 303 is electrically connected to the heating wires. Function: By setting the second heating pad 2, the first heating pad 1, which uses a graphene heating film, can be used for high-temperature heating, while the second heating pad 2, which uses heating wires, can be used for heat preservation. Since the heat generated by the graphene heating film is greater than the heat generated by the heating wires, the cooling fan can blow heat towards the bottom of the first heating pad 1.
[0031] Specifically, the second heating pad 2 is a silicone pad. The bottom of the second heating pad 2 has a wire mounting groove 202. A silicone sleeve 4 is fitted onto the heating wire, which is inserted into the wire mounting groove 202. The bottom of the silicone sleeve 4 protrudes outside the wire mounting groove 202. The silicone sleeve 4 and the wire mounting groove 202 are integrally formed by heat fusion. The bottom of the second heating pad 2 has several downward-protruding second feet 201. Function: The protruding bottom of the flexible sleeve 4 reduces the depth of the wire mounting groove 202, thereby reducing the impact on the overall strength of the second heating pad 2. The integral molding provides good connection strength. The support effect of the second feet 201 on the second heating pad 2 accelerates the airflow rate below the second heating pad 2. Preferably, the area of the first heating pad 1 is smaller than the area of the second heating pad 2.
[0032] Specifically, two temperature controllers 3012 and a temperature control switch 3013 are installed between the upper cover 301 and the lower cover 302. The two temperature controllers 3012 are electrically connected to the graphene heating film and the heating wire, respectively. The control panel 304 is electrically connected to the cooling fan 305, the temperature controllers 3012, and the temperature control switch 3013. Function: By setting the two temperature controllers 3012, the circuit is cut off when the temperature is too high, and the circuit is restored when the temperature drops to normal. It is worth noting that a temperature controller is a control element used to maintain the temperature above (or below) a certain temperature limit under normal operating conditions, and can adjust the temperature. The temperature control switch 3013, also known as a temperature controller switch, thermal protector, or thermal cut-off switch, is mainly used to ensure that the temperature does not exceed (or falls below) a certain temperature limit when the equipment is in an abnormal operating state (such as overheating or overcurrent). It can be manually reset or automatically reset, mainly serving a protective function. The control panel 304 can effectively provide overall control.
[0033] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.
Claims
1. A flexible insulation board, comprising a first heating pad (1), characterized in that: The first heating pad (1) has a graphene heating film inside, and a control box (3) is provided on one side edge of the first heating pad (1). The first heating pad (1) is a flexible pad. The control box (3) includes an upper cover (301) and a lower cover (302). A power socket (303), a control panel (304), and a cooling fan (305) are provided between the upper cover (301) and the lower cover (302). The power socket (303) is electrically connected to the graphene heating film, the control panel (304), and the cooling fan (305). An air outlet (306) is provided on the side of the lower cover (302) near the bottom of the first heating pad (1). The cooling fan (305) cooperates with the air outlet (306) so that the cooling fan (305) can cool the bottom of the first heating pad (1).
2. The flexible insulation board according to claim 1, characterized in that: The lower cover (302) has an air inlet (307) on the side away from the bottom of the first heating pad (1), and the cooling fan (305) cooperates with the air inlet (307).
3. The flexible insulation board according to claim 2, characterized in that: A plurality of cooling fans (305) are distributed sequentially along the length of the lower cover (302), a plurality of air outlets (306) are distributed sequentially along the length of the lower cover (302), and a plurality of air inlets (307) are distributed sequentially along the length of the lower cover (302).
4. The flexible insulation board according to claim 1, characterized in that: The bottom of the first heating pad (1) is provided with several downward protruding first foot pads (101).
5. The flexible insulation board according to claim 1, characterized in that: The first heating pad (1) is a silicone pad.
6. The flexible insulation board according to claim 1, characterized in that: The control panel (304) is equipped with a digital tube display (308), and the upper cover (301) is equipped with a display cover (309). The digital tube display (308) can be displayed to the outside through the display cover (309).
7. The flexible insulation board according to claim 6, characterized in that: A faceplate (3010) is provided between the top cover (301) and the display faceplate (309). An opening (3011) is provided on one side of the faceplate (3010). The digital tube display (308) can be displayed outward through the opening (3011) and the display faceplate (309) in sequence.
8. A flexible insulation board according to any one of claims 1 to 7, characterized in that: The flexible insulation board also includes a second heating pad (2), the control box (3) is connected between the first heating pad (1) and the second heating pad (2), the second heating pad (2) is provided with a heating wire inside, the second heating pad (2) is a flexible pad, and the power socket (303) is electrically connected to the heating wire.
9. A flexible insulation board according to claim 8, characterized in that: The second heating pad (2) is a silicone pad. The bottom of the second heating pad (2) is provided with a wire mounting groove (202). The heating wire is fitted with a silicone sleeve (4). The heating wire is inserted into the wire mounting groove (202). The bottom of the silicone sleeve (4) protrudes to the outside of the wire mounting groove (202). The silicone sleeve (4) and the wire mounting groove (202) are heat-fused together. The bottom of the second heating pad (2) is provided with several downward protruding second foot pads (201).
10. A flexible insulation board according to claim 8, characterized in that: Two temperature controllers (3012) and a temperature control switch (3013) are provided between the upper cover (301) and the lower cover (302). The two temperature controllers (3012) are electrically connected to the graphene heating film and the heating wire, respectively. The control panel (304) is electrically connected to the cooling fan (305), the temperature controllers (3012), and the temperature control switch (3013).