Flexible food heating plate with efficient heat dissipation function

Abstract

The utility model provides a flexible food heating plate with efficient heat dissipation. The device comprises a flexible bearing main body, a controller with a built-in main control board, and a flexible heating element electrically connected with the main control board. The flexible bearing main body comprises a flexible first plate body, a flexible second plate body and a foot pad. The first plate body is arranged on the lower side of the second plate body, and the flexible heating element is arranged between the first plate body and the second plate body. The foot pad is integrally formed on the lower side of the first plate body. The controller is fixed to the side face of the flexible bearing body. The lower side face of the first plate body is provided with an inclined face used for guiding heat convection airflow. During manufacturing, the heating element is packaged between the first plate body and the second plate body. Heat leakage at the bottom of the flexible food heating plate can be reduced, and the energy-saving effect is good. The lower side face of the first plate body is provided with an inclined face used for guiding heat convection airflow. Stable natural heat convection can be formed, the temperature of the bottom of the flexible bearing main body can be reduced, too fast temperature rise of a tabletop can be avoided, and the working temperature upper limit of the flexible food heating plate can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of household appliances especially relates to a flexible food heating plate for food heating. BACKGROUND

[0002] When the temperature is low, the dishes on the table are prone to cool down, which is not conducive to eating. Food heating plate emerges as the times require, and its heating source is usually an electric heating tube or heating wire placed under the ceramic plate or glass plate. The food heating plate is provided with a controller for controlling the heating source. The controller usually includes a main control board, a power input interface, a power switch, a power indicator light and a temperature adjusting device electrically connected to the main control board. The temperature adjusting device is usually a knob, a slide button or a button. Some food heating plates are fixed power heat preservation plates without external temperature adjusting devices.

[0003] The above-mentioned food heating plate structure is cumbersome and is not conducive to storage. With the development of technology, flexible food heating plates appear on the market, which are made of soft silica gel covering heating wires, and have compact and simple structure, which is conducive to curling or folding storage.

[0004] However, the existing flexible food heating plate often bulges, and has low heat efficiency and low temperature upper limit.

[0005] The existing flexible food heating plate usually includes an upper shell, a lower shell and a heating wire arranged between the upper shell and the lower shell. The upper shell and the lower shell are bonded together by glue. Under the action of continuous high-temperature heating of the heating wire, the glue quickly ages and decomposes gas, resulting in bulging. In order to prevent the aging of the glue, the temperature upper limit of the flexible food heating plate is constrained, so that it is difficult to improve the temperature upper limit.

[0006] Patent No. ZL202321013145.6, a flexible heat preservation plate, discloses a flexible food heating plate. It includes a heating pad and a heating wire; the heating pad has a limiting groove for the heating wire, and the limiting groove is uniformly distributed around the heating pad; the heating pad is provided with a power supply, and the end of the heating wire is connected to the power supply; the end face of the heating pad is provided with a plurality of protruding structures, and the heights of all the protruding structures are equal; the heating pad and the heating wire are made of flexible material. The limiting groove is formed on the lower side of the heating pad by the protruding rib. When the heating wire is arranged in the limiting groove, the heat resistance of the lower side of the heating wire is smaller than that of the upper side. A large amount of heat is lost from the lower side of the heating pad, resulting in low efficiency. Because a large amount of heat is dissipated to the table top below the heating pad, the temperature of the table top rises rapidly, which is prone to cause burns. In order to limit the temperature of the table top, the temperature upper limit of the flexible heat preservation plate is extremely limited. In addition, the liquid glue used to package the heating wire is still prone to aging and bulging under heat. UTILITY MODEL CONTENTS

[0007] The utility model aims at providing a flexible food heating plate which has high upper limit of temperature and long service life.

[0008] To achieve the above-mentioned purpose, the flexible food heating plate comprises a flexible bearing main body, a controller with a built-in main control board, and a flexible heating element electrically connected with the main control board.

[0009] The flexible bearing main body comprises a flexible first plate body, a flexible second plate body, and a foot pad.

[0010] The first plate body is located at the lower side of the second plate body, and the flexible heating element is located between the first plate body and the second plate body. The foot pad is integrally formed at the lower side of the first plate body.

[0011] The controller is fixed on the side surface of the flexible bearing main body.

[0012] The lower surface of the first plate body is provided with an inclined surface for guiding the hot convection airflow.

[0013] Therefore, the heating element is encapsulated between the first plate body and the second plate body. The heating element is located at the upper side of the first plate body, which can reduce the heat leakage at the bottom of the flexible food heating plate and has good energy-saving effect. The lower surface of the first plate body is provided with an inclined surface for guiding the hot convection airflow. This is conducive to forming stable natural heat convection, conducive to the airflow at the lower side of the flexible food heating plate flowing from the side close to the lower side to the side close to the higher side and being discharged from the side surface of the flexible food heating plate, conducive to reducing the temperature at the bottom of the flexible bearing main body, avoiding the rapid temperature rise of the table top, and conducive to improving the upper limit of the working temperature of the flexible food heating plate.

[0014] Further, along the length direction of the flexible food heating plate, the side of the lower surface of the first plate body close to the controller is lower than the side far away from the controller.

[0015] Further, along the width direction of the flexible food heating plate, the first side of the lower surface of the first plate body is lower than the second side opposite to the first side.

[0016] Further, along the width direction of the flexible food heating plate, the middle part of the lower surface of the first plate body is lower than the first side and lower than the second side opposite to the first side.

[0017] Further, along the length direction of the flexible food heating plate, the side of the lower surface of the first plate body close to the controller is lower than the side far away from the controller. Along the width direction of the flexible food heating plate, the middle part of the lower surface of the first plate body is lower than the first side and lower than the second side opposite to the first side.

[0018] Further, the lifting trend of the lower surface of the first plate body is along the diagonal direction of the first plate body.

[0019] Further, the first plate body and the second plate body are integrally formed by two-shot injection molding or by one-shot injection molding.

[0020] When integrally formed by two-shot injection molding, the first plate body can be formed first, then the heating element is placed on the first plate body, the second plate body is formed on the upper side of the first plate body by two-shot injection molding, and the heating element is packaged between the first plate body and the second plate body. The first plate body and the second plate body are integrally formed by injection molding, without the need for glue to bond, and the overall temperature resistance is strong. The heating element is located on the upper side of the first plate body, which can reduce the heat leakage at the bottom of the flexible food heating plate, and has good energy-saving effect.

[0021] When integrally formed by one-shot injection molding, the production efficiency can be further improved.

[0022] Further, the flexible bearing body is made of high-temperature-resistant silica gel, and the thickness of the first plate body is greater than the thickness of the second plate body along the height direction of the flexible food heating plate.

[0023] The first plate body and the second plate body are both made of high-temperature-resistant silica gel, which avoids placing heat-insulating materials with different physical and chemical properties in silica gel, avoids the interface connection strength defects of dissimilar materials, and improves the reliability of the structural stability of the flexible bearing body.

[0024] Along the height direction, the average thickness of the first plate body is greater than the average thickness of the second plate body. Without adding other materials, it is beneficial to increase the thermal resistance of the lower side of the flexible heating element, reduce the thermal resistance of the upper side of the flexible heating element, guide the heat upward, reduce the heat loss of the lower side of the bearing body, and reduce the maximum temperature rise of the table top.

[0025] Further, the side surface of the flexible bearing body is provided with a connecting portion, and the connecting portion is provided with a connecting hole extending along the height direction; the shell of the controller is provided with a latch corresponding to the connecting hole, and the controller is installed on the connecting portion, and the latch is inserted into the connecting hole.

[0026] The latch arranged along the height direction can provide high connection strength and connection stability for the installation of the controller. The flexible bearing body provides good suspension support strength for the controller.

[0027] Further, the shell comprises a lower shell and an upper shell; the latch is formed on the lower side of the upper shell; the latch is provided with a screw hole, and the lower shell is provided with a through hole corresponding to the screw hole; after the lower shell and the upper shell are buckled, the lower shell is fixed on the lower side of the upper shell through the screw, the through hole and the screw hole.

[0028] The upper shell and the lower shell engage the connecting portion, preventing the controller from moving up and down relative to the connecting portion, providing high connection strength and high reliability.

[0029] Further, the lower side of the lower shell is provided with a foot portion, and the lower side of the foot portion is flush with the lower side of the foot pad.

[0030] The lower side of the foot is landed at the same time with the lower side of the foot pad, the lower shell provides upward supporting force for the controller, prevents the flexible bearing body end from being flexibly deformed, the controller can maintain a horizontal state for a long time, operation is facilitated, and the service life of the connecting part is prolonged.

[0031] Further, the shell is provided with a power socket for supplying power to the main control board at one end along the width direction of the flexible food heating plate; the display panel and the operation panel in electrical connection with the main control board are arranged on the upper side of the shell.

[0032] The power socket is arranged at the end of the shell, facilitating reduction of the width dimension of the shell and miniaturization of the controller. The display panel and the operation panel are arranged on the upper side of the shell, facilitating operation. The display panel and the operation panel are arranged in a staggered manner with the power socket, also facilitating miniaturization of the controller.

[0033] Further, the side of the shell away from the foot pad is provided with an indicating lamp in electrical connection with the main control board; the working power of the indicating lamp is positively correlated with the working power of the flexible heating element.

[0034] The indicating lamp is bright, indicating that the flexible food heating plate is working, and the temperature of the flexible food heating plate can be perceived by observing the brightness of the indicating lamp. The indicating lamp can also play a warning role.

[0035] Further, the first plate body or the second plate body is formed with a groove for placing the flexible heating element before the flexible heating element is placed.

[0036] The flexible heating element is facilitated to be installed and positioned, and the risk that the flexible heating element is carried away from the predetermined placement position by injection liquid flow during secondary injection molding is reduced.

[0037] Further, the flexible heating element is carbon fiber wire, alloy heating wire or conductive microparticles filled in the flexible bearing body and connected with each other.

[0038] The above flexible heating element has the characteristics of good flexibility and high heating efficiency, and is beneficial to prolong the service life of the flexible bearing body.

[0039] Further, the conductive microparticles are at least one of conductive carbon black, graphene and graphite.

[0040] The conductive microparticles are dispersed in the flexible bearing body to form a conductive network in the flexible bearing body, almost do not change the flexibility of the flexible bearing body, and the stress distribution of the heating part is more uniform than that of the integral flexible heating wire such as carbon fiber wire and alloy heating wire. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 is a perspective view of the utility model.

[0042] Figure 2 is a front view of the utility model.

[0043] Figure 3 is Figure 2 A-A section view.

[0044] Figure 4 is another perspective view of the present application.

[0045] Figure 5 is a perspective view of the first plate body of the present application.

[0046] Figure 6 is a perspective view of the first plate body of the present application after placing the temperature sensor and the flexible heating element.

[0047] Figure 7 is a perspective view of the first plate body of the present application after placing the temperature sensor and the flexible heating element.

[0048] Figure 8 is a schematic view of the assembly connection of the flexible bearing body of the present application fixed with the temperature sensor and the flexible heating element and the upper shell equipped with the main control board and the power socket.

[0049] Figure 9 is a cross-sectional view of the B-B position of the present application after improvement. Figure 4

[0050] Figure 10 is a cross-sectional view of the A-A position of the present application after improvement. Figure 2

[0051] Figure 11 is a cross-sectional view of the A-A position of the present application after another improvement. Figure 2

[0052] Figure 12 is a bottom view of another improved mode of the present application.

[0053] Figure 13 is a bottom view of another improved mode of the present application.

[0054] Figure 14 is a bottom view of another improved mode of the present application. DETAILED DESCRIPTION

[0055] The present application will be described in detail below with reference to the accompanying drawings.

[0056] As shown in Figures 1 to 8 , the flexible food heating plate 1000 of the present application comprises a flexible bearing body 100, a controller 200 with a built-in main control board 210, and a flexible heating element 220 electrically connected with the main control board 210. ​​​

[0057] The flexible bearing body 100 comprises a flexible first plate body 110, a flexible second plate body 120 and a foot pad 111.

[0058] The first plate body 110 is located at the lower side of the second plate body 120, and the flexible heating element 220 is located between the first plate body 110 and the second plate body 120.

[0059] The first plate body 110 and the second plate body 120 are integrally formed by secondary injection.

[0060] The foot pad 111 is integrally formed at the lower side of the first plate body 110.

[0061] The controller 200 is fixed at the side of the flexible bearing body 100.

[0062] Preferably, the controller 200 is fixed at one side of the flexible bearing body 100 along the length direction 01. In other embodiments, the controller 200 can also be fixed at one side of the flexible bearing body 100 along the width direction 02.

[0063] Preferably, the side of the flexible bearing body 100 is provided with a connecting portion 112, and the connecting portion 112 is provided with a connecting hole 113 extending along the height direction 03; the shell 201 of the controller 200 is provided with a latch 243 corresponding to the connecting hole 113, and when the controller 200 is installed on the connecting portion 112, the latch 243 is inserted into the connecting hole 113.

[0064] Preferably, the shell 201 comprises a lower shell 230 and an upper shell 240; the latch 243 is formed at the lower side of the upper shell 240; the latch 243 is provided with a screw hole 244, and the lower shell 230 is provided with a through hole 234 corresponding to the screw hole 244; after the lower shell 230 and the upper shell 240 are buckled, the lower shell 230 is fixed at the lower side of the upper shell 240 through a screw (not shown in the figure), the through hole 234 and the screw hole 244.

[0065] Preferably, the lower side of the lower shell 230 is provided with a foot portion 231, and the lower side of the foot portion 231 is flush with the lower side of the foot pad 111.

[0066] Preferably, one end of the shell 201 along the width direction 02 of the flexible food heating plate 1000 is provided with a power socket 211 for supplying power to the main control board 210; the display panel 212 and the operation panel 213 electrically connected with the main control board 210 are arranged at the upper side of the shell 201.

[0067] Preferably, the side of the shell 201 opposite to the foot pad 111 is provided with an indicator lamp 214 electrically connected with the main control board 210; the working power of the indicator lamp 214 is positively correlated with the working power of the flexible heating element 220.

[0068] Preferably, the first plate body 110 is formed with a recess 001 for placing the flexible heating element 220 before the flexible heating element 220 is placed.

[0069] Preferably, the first plate body 110 is formed with a through hole A003 for mounting the flexible heating element 220 before the flexible heating element 220 is placed. The through hole A003 penetrates the connecting portion 112 and communicates from the side of the connecting portion 112 close to the body of the flexible heating element 220 to the side of the connecting portion 112 close to the main control board 210.

[0070] The joint 221 of the flexible heating element 220 penetrates the through hole A003 and passes from the side of the connecting portion 112 close to the body of the flexible heating element 220 to the side of the connecting portion 112 close to the main control board 210.

[0071] Preferably, the first plate body 110 is formed with a recess 002 for placing the temperature sensor 215 before the temperature sensor 215 is placed.

[0072] Preferably, the first plate body 110 is formed with a through hole B004 for mounting the temperature sensor 215 before the temperature sensor 215 is placed. The through hole B004 penetrates the connecting portion 112 and communicates from the side of the connecting portion 112 close to the main control board 210 to the side of the connecting portion 112 close to the body of the flexible heating element 220.

[0073] The temperature sensor 215 penetrates the through hole B004 and passes from the side of the connecting portion 112 close to the main control board 210 to the side of the connecting portion 112 close to the body of the flexible heating element 220.

[0074] The mold for manufacturing the first plate body 110 and the second plate body 120 is simplified, and the efficiency of mounting and placing the flexible heating element 220 and the temperature sensor 215 is improved.

[0075] In other embodiments, the second plate body 120 is formed first, and the second plate body 120 is formed with a recess 001 for placing the flexible heating element 220 before the flexible heating element 220 is placed. The second plate body 120 is formed with a recess 002 for placing the temperature sensor 215 before the temperature sensor 215 is placed.

[0076] Preferably, the flexible bearing body 100 is made of high-temperature-resistant silica gel, and the thickness of the first plate body 110 is greater than the thickness of the second plate body 120 along the height direction 03 of the flexible food heating plate 1000.

[0077] Preferably, the flexible heating element 220 is a carbon fiber wire, an alloy heating wire, or conductive particles filled in the flexible bearing body and connected to each other.

[0078] Preferably, the conductive particles are at least one of conductive carbon black, graphene, and graphite.

[0079] See Figure 9 As an improvement, along the length direction 01, the lower side 114 of the first plate 110, the side 115 near the controller 200, is lower than the side 116 away from the controller 200. The lower side 114 of the first plate 110 serves as an inclined surface for guiding thermal convection airflow. This facilitates stable natural thermal convection, allowing airflow along direction 051 from the side 115 near the controller 200 to the side 116 away from the controller 200, and exiting from the side of the flexible food heating plate 1000. This helps reduce the temperature of the controller 200 and the bottom of the flexible support body 100, preventing the tabletop from heating up too quickly. Along the height direction 03, the average thickness of the first plate 110 is greater than the average thickness of the second plate 120, facilitating upward heat flow and reducing the maximum temperature rise of the tabletop.

[0080] Preferably, the controller 200 is equipped with an exhaust fan (not shown in the figure), and the airflow discharged by the exhaust fan is at least partially aligned with the airflow direction 051. This helps to accelerate the airflow speed on the lower side 114, further reducing the temperature of the controller 200 and the bottom of the flexible support body 100, thus preventing the desktop from heating up too quickly.

[0081] See Figure 10 As an improvement, along the width direction 02, the first side 117 of the lower surface 114 of the first plate 110 is lower than the second side 118 opposite to the first side 117. The lower surface 114 of the first plate 110 serves as an inclined surface for guiding thermal convection airflow. This facilitates the formation of stable natural thermal convection, allowing airflow under the flexible food heating plate 1000 to flow from the first side 117 to the second side 118 along direction 052 and exit from the side of the flexible food heating plate 1000, thus reducing the temperature at the bottom of the flexible support body 100 and preventing the tabletop from heating up too quickly. Along the height direction 03, the average thickness of the first plate 110 is greater than the average thickness of the second plate 120, which facilitates upward heat flow and reduces the maximum temperature rise of the tabletop.

[0082] In other embodiments, along the width direction 02, the second side 118 of the lower side surface 114 of the first plate 110 is lower than the first side 117 opposite to the second side 118. This also facilitates the formation of a thermal convection airflow along the width direction on the lower side of the flexible food heating plate 1000, reducing the temperature at the bottom of the flexible support body 100 and preventing the tabletop from heating up too quickly.

[0083] See Figure 11As an improvement, the middle part 119 of the lower side 114 of the first plate body 110 is lower than the first side 117 and the second side 118 opposite to the first side 117 along the width direction 02. That is, the lower side 114 is provided with an inclined surface for guiding the heat convection airflow, which includes a first inclined surface 1141 and a second inclined surface 1142. To form stable natural heat convection, the airflow at the lower side of the flexible food heating plate 1000 flows from the middle part 119 to the first side 117 and the second side 118 along the direction 053 and the direction 054, and is discharged from the side of the flexible food heating plate 1000, a negative pressure is formed at the middle part 119, and cold air flows from the lower side 114 to the middle part 119 along the two ends of the length direction 01, forming a good heat circulation. To reduce the temperature of the bottom of the flexible bearing body 100, avoid the table top from heating up too quickly.

[0084] Along the height direction 03, the average thickness of the first plate body 110 is greater than the average thickness of the second plate body 120, which is conducive to the upward flow of heat and reduces the maximum temperature rise of the table top.

[0085] Referring to Figure 12 , in other embodiments, along the length direction 01, the side 115 of the lower side 114 of the first plate body 110 close to the controller 200 is lower than the side 116 away from the controller 200. Along the width direction 02, the middle part 119 of the lower side 114 of the first plate body 110 is lower than the first side 117 and the second side 118 opposite to the first side 117. That is, the lower side 114 is provided with an inclined surface for guiding the heat convection airflow, which includes a third inclined surface 1143 and a fourth inclined surface 1144. To facilitate the airflow at the lower side of the first plate body 110 to flow along Figure 12 the dashed arrow direction in the middle, shorten the average heating time of the airflow, and improve the heat dissipation efficiency. Wherein, the length direction 01 is the first lifting direction of the lower side 114, and the width direction 02 is the second lifting direction.

[0086] Specifically, the lowest point 101 of the lower side 114 is located at the middle part of the side 115 of the first plate body 110 close to the controller 200, and the highest point 102 of the lower side 114 is located at the two ends of the side 116 of the first plate body 110 away from the controller 200.

[0087] Referring to Figure 13 , the lifting direction of the lower side 114 is not limited to the length direction 01, but can also be the diagonal direction 04 shown in the figure. The lower side 114 of the first plate body 110 as a whole is an inclined surface for guiding the heat convection airflow. To facilitate the airflow at the lower side of the first plate body 110 to flow along Figure 12 the dashed arrow direction in the middle, shorten the average heating time of the airflow, and improve the heat dissipation efficiency.

[0088] Referring to Figure 14The first lifting direction of the lower side 114 is not limited to the length direction 01, but can also be the diagonal direction 04 shown in the figure; the second lifting direction of the lower side 114 is not limited to the width direction 02, but can also be the diagonal direction 05 and the width direction 02. That is, the lower side 114 is provided with inclined surfaces for guiding the hot convection air flow, and the inclined surfaces include a fifth inclined surface 1145, a sixth inclined surface 1146 and a seventh inclined surface 1147. The air flow on the lower side of the first plate body 110 flows in the direction of the dotted arrow, shortens the average heating time of the air flow, and improves the heat dissipation efficiency. Figure 12 The air flow on the lower side of the first plate body 110 flows in the direction of the dotted arrow, shortens the average heating time of the air flow, and improves the heat dissipation efficiency.

[0089] In general, the lifting direction of the lower side 114 is not limited to the above embodiments, as long as it is beneficial to the natural heat convection on the side of the first plate body 110. Preferably, the cold air of the heat convection enters the bottom of the first plate body 110 through the lower side of the controller 200, which is beneficial to the heat dissipation of the controller 200.

[0090] As an improvement, in order to further improve the production efficiency, the first plate body and the second plate body can be formed together by one injection molding. By positioning the main body of the flexible heating element 220 at a predetermined position by the positioning needle, the positioning accuracy of the flexible heating element 220 can be improved.

[0091] In the above embodiments, the inclined surface for guiding the hot convection air flow is not limited to a plane, but can also be a curved surface.

[0092] The above is only a preferred embodiment of the present application, and for those skilled in the art, according to the idea of the present application, the specific implementation and application range will be changed, and the content of the specification should not be understood as a limitation of the present application.

Claims

1.A flexible food heating plate with high heat dissipation, comprising a flexible bearing main body, a controller with a built-in main control board, and a flexible heating element electrically connected to the main control board, characterized in that: the flexible bearing main body comprises a flexible first plate body, a flexible second plate body, and a foot pad; the first plate body is located on the lower side of the second plate body, and the flexible heating element is located between the first plate body and the second plate body; the foot pad is integrally formed on the lower side of the first plate body; the controller is fixed on the side of the flexible bearing main body; and the lower side of the first plate body is provided with an inclined surface for guiding the heat convection airflow. 2.The flexible food heating plate with high heat dissipation according to claim 1, characterized in that: along the length direction of the flexible food heating plate, the lower side of the first plate body is lower on the side close to the controller than on the side away from the controller. 3.The flexible food heating plate with high heat dissipation according to claim 1, characterized in that: along the width direction of the flexible food heating plate, the lower side of the first plate body is lower on the first side than on the second side opposite to the first side. 4.The flexible food heating plate with high heat dissipation according to claim 1, characterized in that: along the width direction of the flexible food heating plate, the lower side of the first plate body is lower in the middle part than on the first side and than on the second side opposite to the first side. 5.The flexible food heating plate with high heat dissipation according to claim 1, characterized in that: along the length direction of the flexible food heating plate, the lower side of the first plate body is lower on the side close to the controller than on the side away from the controller, and along the width direction of the flexible food heating plate, the lower side of the first plate body is lower in the middle part than on the first side and than on the second side opposite to the first side. 6.The flexible food heating plate with high heat dissipation according to claim 1, characterized in that: the lifting trend of the lower side of the first plate body is along the diagonal direction of the first plate body. 7.The flexible food heating plate with high heat dissipation according to any one of claims 1 to 6, characterized in that: the first plate body and the second plate body are integrally formed by two-shot injection molding or by one-shot injection molding. 8.The flexible food heating plate with high heat dissipation according to claim 7, characterized in that: the flexible bearing main body is made of high-temperature-resistant silica gel, and along the height direction of the flexible food heating plate, the thickness of the first plate body is greater than the thickness of the second plate body. 9.The flexible food heating plate with high heat dissipation according to claim 7, characterized in that: the side of the flexible bearing main body is provided with a connecting part, the connecting part is provided with a connecting hole extending in the height direction; the housing of the controller is provided with a latch corresponding to the connecting hole; and when the controller is installed on the connecting part, the latch is inserted into the connecting hole. 10.The flexible food heating plate with high heat dissipation according to claim 9, characterized in that: the housing comprises a lower shell and an upper shell; the latch is formed on the lower side of the upper shell; the latch is provided with a screw hole, and the lower shell is provided with a through hole corresponding to the screw hole. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ After the lower shell is buckled with the upper shell, the lower shell is fixed at the lower side of the upper shell through the screw, the through hole and the screw hole.

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