Temperature detection assembly of insulation board

Abstract

A temperature detection assembly of an insulation board comprises a heating pad assembly, a heating element and a temperature detection assembly are arranged on the heating pad assembly, and the heating element is arranged on the upper portion or the lower portion of the temperature detection assembly. The heating element is arranged at the upper part of the temperature detection assembly, the length of the temperature detection assembly pressed into the heating element is a, and a = 0.8-1.5 mm; the heating pad assembly is electrically connected with the power supply control box through a coupler, and a circuit led out of the temperature detection assembly is electrically connected with the coupler. According to the temperature detection assembly of the insulation board, the heating element is arranged at the upper part or the lower part of the temperature detection assembly, the length of the temperature detection assembly pressed into the heating element is 0.8-1.5 mm, and the heating element adopts the heating film, so that the temperature detection assembly is in full contact with the heating film, and the temperature measurement accuracy of the temperature detection assembly is improved; the heating film is a carbon crystal heating film, and the heating film is in a sheet shape and is small in thickness, so that heating of the heating film is more uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal insulation boards, in particular to a temperature detection assembly of a thermal insulation board. Background Art

[0002] Chinese patent document CN217744141U, published on November 8, 2022, discloses a flexible food warmer, comprising an electronic control device and a main body formed from a flexible material that can be laid out flat or rolled up for storage. The main body houses an electric heating assembly, which includes a heating device electrically connected to the electronic control device. This flexible food warmer uses a temperature sensor to measure the temperature of the heating wire. The gap between the temperature sensor and the heating wire makes the temperature measurement inaccurate.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of the utility model is to provide a temperature detection assembly for an insulation board with a simple structure, accurate temperature measurement, safety and reliability, good user experience and strong practicality, so as to overcome the shortcomings of the existing technology.

[0005] A temperature detection assembly of an insulation board designed for this purpose includes a heating pad assembly on which a heating element and a temperature detection assembly are provided. The characteristic is that the heating element is arranged on the upper part or the lower part of the temperature detection assembly.

[0006] The heating element is arranged on the upper part of the temperature detection component, and the length of the temperature detection component pressed into the heating element is a, a=0.8~1.5mm.

[0007] It also includes a power control box. A coupler is provided between the heating pad assembly and the power control box. The heating pad assembly and the power control box are electrically connected through the coupler. The external line of the temperature detection assembly is electrically connected to the coupler.

[0008] The heating pad assembly includes at least a heating pad, the temperature detection assembly includes a temperature sensor and a thermal protector, the heating pad is provided with a first mounting hole and a second mounting hole, the temperature sensor is positioned and installed on the first mounting hole, and the thermal protector is positioned and installed on the second mounting hole.

[0009] The heating pad assembly also includes a casing connected to the heating pad, an inner cavity is provided on the casing, the coupler part is provided on the inner cavity, the first mounting hole is connected to the inner cavity, the temperature sensor part extends into the inner cavity, and the part extending into the inner cavity is provided with a first terminal, and the line led out of the first terminal is electrically connected to the coupler.

[0010] The thermal protector is provided with a second terminal, the second mounting hole is communicated with the inner cavity, the second terminal extends into the inner cavity, and the circuits led out of the second terminal are electrically connected to the coupler and the heating element respectively.

[0011] The heating element is provided with a wiring terminal, which extends into the inner cavity, and the circuit led out of the wiring terminal is electrically connected to the coupler.

[0012] A protrusion is provided on the heating pad, a first mounting hole and a second mounting hole are provided on the protrusion, an air avoidance hole is provided on the casing, and the protrusion passes through the air avoidance hole and extends into the inner cavity.

[0013] The heating pad includes a planar heating pad body, in which the heating element is arranged. The thickness of the heating pad body is b, b=2~4mm; the heating element is a carbon crystal heating film, which is in sheet form and has a thickness of less than 30um.

[0014] The temperature detection assembly of the insulation board of the present invention is achieved by arranging the heating element at the upper or lower part of the temperature detection component. The length of the temperature detection component pressed into the heating element is 0.8 to 1.5 mm. In addition, the heating element adopts a heating film, so that the temperature detection component is in full contact with the heating film, thereby improving the temperature measurement accuracy of the temperature detection component; the heating film adopts a carbon crystal heating film, and the heating film is in sheet form and has a small thickness, so that the heating of the heating film is more uniform, thereby making the heating of the food more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a cross-sectional view of an insulation board in one embodiment of the present invention.

[0016] Figure 2 for Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0017] Figure 3 This is a partial structural cross-sectional view of an insulation board in one embodiment of the present invention.

[0018] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at point B in the middle.

[0019] Figure 5 This is a partial structural exploded view of the insulation board in one embodiment of the present invention.

[0020] Figure 6 for Figure 5 Schematic diagram of the enlarged structure at point C in the middle.

[0021] Figure 7 This is a schematic diagram of the partial structure of the insulation board in one embodiment of the present utility model.

[0022] Figure 8This is a partial structural exploded view of another aspect of the insulation board in one embodiment of the present invention.

[0023] Figure 9 This is a schematic diagram of the exploded structure of the insulation board in one embodiment of the present utility model.

[0024] Figure 10 This is a schematic diagram of the overall structure of the insulation board in one embodiment of the present utility model.

[0025] Figure 11 This is a schematic structural diagram of a heating pad in one embodiment of the present invention. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] See also Figures 1-11 The temperature detection assembly of the insulation board includes a heating pad component, on which a heating element 2 and a temperature detection component are provided. The heating element 2 is provided on the upper or lower part of the temperature detection component.

[0028] The heating element 2 is arranged on the upper part of the temperature detection assembly. The length of the temperature detection assembly pressed into the heating element 2 is a, a=0.8-1.5mm, and the value of a in this embodiment is 1mm.

[0029] It also includes a power control box 1, a coupler 16 is provided between the heating pad assembly and the power control box 1, the heating pad assembly and the power control box 1 are electrically connected through the coupler 16, and the external line of the temperature detection assembly is electrically connected to the coupler 16.

[0030] The coupler 16 includes a coupling socket 17 provided on the heating pad assembly and a coupling plug 18 provided on the power control box 1 . The coupling socket 17 and the coupling plug 18 are plugged into each other to form conductive contact, and the coupling socket 17 and the coupling plug 18 can be detached from each other.

[0031] The coupling socket 17 is provided with a plurality of plug-in terminals 19 , and the coupling plug 18 is provided with a plurality of plug-in parts 20 . The plug-in terminals 19 and the plug-in parts 20 are plugged into each other. The plug-in terminals 19 are electrodes, and the plug-in parts 20 are plug-in holes.

[0032] The heating pad assembly includes at least a heating pad 3, the temperature detection assembly includes a temperature sensor 4 and a thermal protector 5, a first mounting hole 6 and a second mounting hole 7 are provided at one end of the heating pad 3, the temperature sensor 4 is positioned and installed on the first mounting hole 6, and the thermal protector 5 is positioned and installed on the second mounting hole 7.

[0033] The first mounting hole 6 and the second mounting hole 7 can respectively position the temperature sensor 4 and the thermal protector 5 to prevent the temperature sensor 4 and the thermal protector 5 from loosening, thereby ensuring the accuracy of temperature detection.

[0034] The heating pad assembly also includes a housing 9 connected to the heating pad 3, an inner cavity 10 is provided on the housing 9, a coupling socket 17 is provided on the inner cavity 10, the first mounting hole 6 is connected to the inner cavity 10, the temperature sensor 4 partially extends into the inner cavity 10, and the part extending into the inner cavity 10 is provided with a first terminal 11, and the line led out of the first terminal 11 is electrically connected to the coupling socket 17.

[0035] A power control board is provided in the power control box 1, which is electrically connected to the coupling plug 18 and connected to the power supply. The temperature sensor 4 is an NTC temperature sensor for detecting the temperature of the heating element 2. The temperature sensor 4 transmits the detection signal to the power control board, which adjusts the operation of the heating element 2 according to the detection signal to adjust the surface temperature of the heating pad 3.

[0036] A second terminal 12 is provided on the thermal protector 5, the second mounting hole 7 is connected to the inner cavity 10, the second terminal 12 extends into the inner cavity 10, and the circuits led out of the second terminal 12 are electrically connected to the coupling socket 17 and the heating element 2 respectively; the thermal protector 5 is a temperature switch. When the temperature measurement of the temperature sensor 4 fails, if the temperature of the heating element 2 is too high and reaches the disconnection temperature of the temperature switch, the temperature switch is disconnected to stop the heating element 2 from working.

[0037] The first connecting terminal 11 and the second connecting terminal 12 are located on the inner cavity 10 to facilitate connection with the coupling socket 17 .

[0038] A terminal 13 is provided on the heating element 2, and the terminal 13 extends into the inner cavity 10 through the slot 21. The line leading out of the terminal 13 is electrically connected to the coupler 16. The terminal 13 is located on the inner cavity 10, which facilitates its connection with the coupling socket 17, thereby powering and controlling the heating element 2.

[0039] A protrusion 14 is provided on the heating pad 3, the first mounting hole 6 and the second mounting hole 7 are provided on the protrusion 14, and an air avoidance hole 15 is provided on the housing 9. The protrusion 14 passes through the air avoidance hole 15 and extends into the inner cavity 10, so that the first mounting hole 6 and the second mounting hole 7 are connected to the inner cavity 10.

[0040] The heating pad 3 is made of silicone material. The heating pad 3 includes a planar heating pad body 8. The heating element 2 is arranged in the heating pad body 8. The thickness of the heating pad body 8 is b, b=2~4mm. The thickness b of the heating pad body 8 in this embodiment is 3mm; the heating element 2 is a carbon crystal heating film, and the carbon crystal heating film is in sheet shape. After the vulcanized silicone and the heating film are formed, the thickness of the carbon crystal heating film is less than 30um.

[0041] A sealing connection frame 22 is provided at one end of the heating pad 3. The casing 9 includes an upper shell 23 and a lower shell 24. The upper shell 23 and the lower shell 24 are connected by screws. The sealing connection frame 22 is pressed between the upper shell 23 and the lower shell 24 to connect the heating pad 3 and the casing 9.

[0042] The above is a preferred embodiment of the present invention, which illustrates and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A temperature detection assembly for a heat preservation plate, comprising a heating pad assembly, on which a heating element (2) and a temperature detection assembly are provided, characterized in that: The heating element (2) is arranged on the upper part or the lower part of the temperature detection component; The heating element (2) is arranged on the upper part of the temperature detection component, and the length of the temperature detection component pressed into the heating element (2) is a, a=0.8-1.5mm.

2. The temperature detection assembly of the insulation board according to claim 1, characterized in that: It also includes a power control box (1), a coupler (16) is provided between the heating pad assembly and the power control box (1), the heating pad assembly and the power control box (1) are electrically connected via the coupler (16), and the external line of the temperature detection assembly is electrically connected to the coupler (16).

3. The temperature detection assembly of the insulation board according to claim 2, characterized in that: The heating pad assembly at least comprises a heating pad (3); the temperature detection assembly comprises a temperature sensor (4) and a thermal protector (5); a first mounting hole (6) and a second mounting hole (7) are provided on the heating pad (3); the temperature sensor (4) is positioned and mounted on the first mounting hole (6); and the thermal protector (5) is positioned and mounted on the second mounting hole (7).

4. The temperature detection assembly of the insulation board according to claim 3, characterized in that: The heating pad assembly further includes a housing (9) connected to the heating pad (3), an inner cavity (10) is provided on the housing (9), a coupler (16) is partially provided on the inner cavity (10), a first mounting hole (6) is connected to the inner cavity (10), a temperature sensor (4) partially extends into the inner cavity (10), and a first wiring terminal (11) is provided on the portion extending into the inner cavity (10), and a line externally led from the first wiring terminal (11) is electrically connected to the coupler (16).

5. The temperature detection assembly of the insulation board according to claim 4, characterized in that: A second terminal (12) is provided on the thermal protector (5), the second mounting hole (7) is connected to the inner cavity (10), the second terminal (12) extends into the inner cavity (10), and the circuits leading out of the second terminal (12) are electrically connected to the coupler (16) and the heating element (2).

6. The temperature detection assembly of the insulation board according to claim 5, characterized in that: A terminal (13) is provided on the heating element (2), and the terminal (13) extends into the inner cavity (10). The line leading out of the terminal (13) is electrically connected to the coupler (16).

7. The temperature detection assembly of the insulation board according to claim 3, characterized in that: A protrusion (14) is provided on the heating pad (3), a first mounting hole (6) and a second mounting hole (7) are provided on the protrusion (14), an air avoidance hole (15) is provided on the housing (9), and the protrusion (14) passes through the air avoidance hole (15) and extends into the inner cavity (10).

8. The temperature detection assembly of the insulation board according to claim 2, characterized in that: The coupler (16) comprises a coupling socket (17) arranged on the heating pad assembly and a coupling plug (18) arranged on the power control box (1); the coupling socket (17) and the coupling plug (18) are plugged into each other to form conductive contact.

9. The temperature detection assembly of the insulation board according to claim 4, characterized in that: The heating pad (3) comprises a planar heating pad body (8), a heating element (2) is arranged in the heating pad body (8), and the thickness of the heating pad body (8) is b, b=2-4 mm; the heating element (2) is a carbon crystal heating film, the carbon crystal heating film is in sheet form, and the thickness of the carbon crystal heating film is less than 30 μm.

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