Integrated heating disc

Abstract

The utility model relates to the technical field of heating plates, in particular to an integrated heating plate, which comprises a metal substrate, a first insulating layer arranged on one side of the metal substrate, a heating film arranged on one side, far away from the metal substrate, of the first insulating layer, and a second insulating layer arranged on one side, far away from the first insulating layer, of the heating film. Aluminum alloy layers are arranged on one side, far away from the heating film, of the second insulating layer and one side, far away from the first insulating layer, of the metal substrate; a connector is installed at one end of the heating film, the connecting end of the connector is in conductive connection with the heating film, insulating layers are arranged on the two sides of the heating film, the heating film can play a role in insulation with the metal substrate, and the use safety is improved. Aluminum alloy layers are arranged on the side, away from the heating film, of the second insulating layer and the side, away from the first insulating layer, of the metal substrate. The aluminum alloy layer wraps the second insulating layer, the heating film, the first insulating layer and the metal substrate, so that the heat transfer efficiency can be effectively improved, and the heat utilization rate is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heating disc, especially a one-piece heating disc. BACKGROUND

[0002] In the technical field of heating disc, the traditional heating disc usually adopts heating tube to be welded on the base to achieve the purpose of heat transfer, and the heating disc and the heating tube of products such as electric baking tray, electric baking plate, waffle machine, sandwich and electric iron are two separate components, and the heating tube is installed at the bottom of the heating disc.

[0003] In the prior art, the heating tube is tubular, and it is difficult to cover the area of the heating disc, so the surface temperature of the heating disc has differences, the area close to the heating tube can be heated to the set temperature, the area far away from the heating tube is heated slowly, and has the problem that the set temperature cannot be reached, in addition, since the heating tube and the heating disc are contact type heat transfer, and the area of direct contact is very limited, more than half of the surface area of the heating tube is not in contact with the baking tray but exposed, therefore, the heat transfer efficiency is low, and the heat utilization rate is low. SUMMARY

[0004] In view of the above defects, the utility model discloses a one-piece heating disc, which wraps the heating film, the first insulating layer, the second insulating layer, the metal substrate and the aluminum alloy layer into one, and the heating film is wrapped inside, so that the transmission efficiency is high, and the heat utilization rate is high.

[0005] To achieve this purpose, the utility model adopts the following technical scheme: a one-piece heating disc, comprising a metal substrate and a heating assembly;

[0006] One side of the metal substrate is fixedly connected with one side of the heating assembly;

[0007] The other side of the metal substrate and the other side of the heating assembly are both provided with an aluminum alloy layer, and the aluminum alloy layer wraps one end of the metal substrate and the heating assembly;

[0008] The other end of the heating assembly is provided with a connector, and the connector is in conductive connection with the heating assembly.

[0009] Further, the heating assembly comprises a first insulating layer, a heating film and a second insulating layer;

[0010] The heating film is arranged between the first insulating layer and the second insulating layer;

[0011] The first insulating layer is fixedly connected with one side of the metal substrate.

[0012] Further, the metal substrate and the first insulating layer, the first insulating layer and the heat-generating film, and the heat-generating film and the second insulating layer are all solidified by high-temperature sintering after surface coating.

[0013] Further, the first insulating layer and the second insulating layer are made of mica film, quartz film, boron nitride film, boron nitride coating, Teflon layer, heat-conducting silica gel or heat-conducting silicone grease.

[0014] Further, the heat-generating film is provided with an NTC thermistor.

[0015] Further, the connecting end of the connector is provided with a silver contact, and the heat-generating film and the connector are electrically connected through the silver contact.

[0016] Further, the side surface of the metal substrate is provided with a plurality of through holes, the width of the through holes is 1mm-10mm or 10-20mm, and the length of the through holes is 1mm-10mm, 10mm-20mm, 20mm-30mm or 30mm-40mm.

[0017] Further, the side surface of the metal substrate is provided with a plurality of reinforcing ribs, the width of the reinforcing ribs is 1mm-5mm, and the reinforcing ribs are horizontally arranged.

[0018] The technical scheme provided by the utility model can have the following beneficial effects: the first insulating layer is arranged on one side of the metal substrate, the heat-generating film is arranged on one side of the first insulating layer, and finally, the second insulating layer and the first insulating layer clamp the heat-generating film in the middle, so that the heat-generating film has the insulating layer on both sides, the heat-generating film can play an insulating role with the metal substrate, the use safety is improved, the side, away from the heat-generating film, of the second insulating layer and the side, away from the first insulating layer, of the metal substrate are both provided with an aluminum alloy layer, the aluminum alloy layer wraps the second insulating layer, the heat-generating film, the first insulating layer and the metal substrate, and the heat transfer efficiency can be effectively improved, so that the heat utilization rate is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a top view of the internal structure of an integrated heat-generating disc according to an embodiment of the utility model;

[0020] Figure 2 is a structure diagram of a heat-generating film according to the utility model;

[0021] Figure 3 is a structure diagram of a through hole according to the utility model;

[0022] Figure 4 is a structure diagram of a reinforcing rib according to the utility model;

[0023] Wherein: 1-metal substrate, 2-the first insulating layer, 3-heating film, 4-the second insulating layer, 5-aluminum alloy layer, 6-connector, 7-via, 8-stiffener, 9-silver contact, 10-NTC thermistor. DETAILED DESCRIPTION

[0024] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are merely intended to explain the present application, and are not to be understood as limiting the present application.

[0025] In the description of the present application, it is to be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features, which are used to distinguish the described features, and have no order or importance.

[0026] In the description of the present application, unless otherwise specified, the meaning of "several" is one or more than one.

[0027] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] The embodiments of the present application are described below in conjunction with Figures 1 to 4 , a one-piece heating disc, comprising a metal substrate 1 and a heating assembly; one side of the metal substrate 1 is fixedly connected with one side of the heating assembly; the other side of the metal substrate 1 and the other side of the heating assembly are both provided with an aluminum alloy layer 5, which wraps one end of the metal substrate 1 and the heating assembly; the other end of the heating assembly is provided with a connector 6, which is in conductive connection with the heating assembly.

[0029] This utility model discloses an integrated heating plate for installation in products such as electric baking pans, electric griddles, waffle makers, sandwiches, and electric irons. Specifically, the metal substrate 1 serves as the support and heat dissipation base for the heating element, possessing excellent thermal conductivity. By being fixedly connected to one side of the heating element, it ensures that heat is rapidly transferred from the heating element to the metal substrate. Furthermore, since aluminum alloy not only has excellent thermal conductivity but is also corrosion-resistant and lightweight, it helps to accelerate heat diffusion and dissipation. On this basis, the aluminum alloy layer 5 further enhances the overall heat dissipation effect, effectively improving heat transfer efficiency and thus increasing heat utilization. On the other hand, the aluminum alloy layer 5, which wraps around the metal substrate 1 and one end of the heating element, provides additional physical protection for the integrated heating plate, preventing external moisture, dust, chemicals, etc., from corroding the internal components and extending the product's service life. The wrapping design also increases the overall structural stability, preventing components from loosening or being damaged due to vibration or external impact.

[0030] In some embodiments, when the aluminum alloy layer 5 is located at the end of the heating element and the metal substrate 1, it can completely or partially cover them. In a preferred embodiment, such as... Figure 1 As shown, the metal substrate 1 and the other side of the heating element are exposed on the outside and are not completely covered by the aluminum alloy layer 5, thus forming a natural heat dissipation channel. When the heating element is working, the heat generated can not only be conducted to the aluminum alloy layer 5 through contact with the metal substrate 1 for heat dissipation, but can also be directly exchanged with the external environment through the exposed side, thereby improving the overall heat dissipation efficiency, ensuring uniform heat dissipation of the heating plate, and thus making the heating plate heat up evenly.

[0031] Furthermore, such as Figure 1 As shown, the heating component includes a first insulating layer 2, a heating film 3, and a second insulating layer 4; the heating film 3 is disposed between the first insulating layer 2 and the second insulating layer 4, and the first insulating layer 2 is fixedly connected to one side of the metal substrate 1.

[0032] In this embodiment, a first insulating layer 2 is first set on one side of the metal substrate 1, and then a heating film 3 is set on one side of the first insulating layer 2. Finally, the second insulating layer 4 and the first insulating layer 2 sandwich the heating film 3 in the middle, so that both sides of the heating film 3 have insulating layers. The heating film 3 can insulate the metal substrate 1, so that when the heating component is electrically connected to the connector 6, the safety of the integrated heating plate can be guaranteed.

[0033] Furthermore, the metal substrate 1 and the first insulating layer 2, the first insulating layer 2 and the heating film 3, and the heating film 3 and the second insulating layer 4 are all cured by surface coating followed by high-temperature sintering.

[0034] In this embodiment, the surface coating is printed or silk-screened in the form of slurry. Specifically, the first insulating layer 2 is printed on the metal substrate 1, and the first insulating layer 2 is sintered and cured at high temperature. Then, the heating film 3 is printed or silk-screened on the first insulating layer 2 in the form of slurry, and the heating film 3 is sintered and cured at high temperature. Finally, the second insulating layer 4 is printed on the heating film 3, and the second insulating layer 4 is sintered and cured at high temperature. This can improve the sealing performance and has a waterproof effect.

[0035] Further, the first insulating layer 2 and the second insulating layer 4 are made of mica film, quartz film, boron nitride film, boron nitride coating, Teflon layer, heat-conducting silica gel or heat-conducting silicone, thereby making the first insulating layer 2 and the second insulating layer 4 have good insulating effect.

[0036] Further, as shown in Figure 2 The heating film 3 is provided with an NTC thermistor 10. Specifically, the NTC can monitor the temperature of the heating disc and transmit signals to the control panel. By adjusting the current or voltage, the working of the heating film can be controlled, so that the temperature of the heating disc is controlled within the set temperature range.

[0037] Further, the connecting end of the connector 6 is provided with a silver contact 9. The heating film 3 and the connector 6 are electrically connected through the silver contact 9. It can be understood that the silver contact 9 can improve the good contact and conduction between the connector 6 and the heating film 3.

[0038] Further, as shown in Figure 3 The side of the metal substrate 1 is provided with a plurality of through holes 7. The width of the through hole 7 is 1mm-10mm or 10-20mm. The length of the through hole 7 is 1mm-10mm, 10mm-20mm, 20mm-30mm or 30mm-40mm.

[0039] Specifically, the side of the metal substrate 1 is provided with a plurality of through holes 7, so that the aluminum alloy layers 5 located on the two sides of the through holes 7 can be attached to each other, thereby making the aluminum alloy layers 5 wrap the metal substrate 1, so that the fixation is more high and not easy to move.

[0040] In some embodiments, the through hole 7 is provided with 4-8, and the width of the through hole 7 is 1mm-10mm or 10-20mm. The length of the through hole 7 is 1mm-10mm, 10mm-20mm, 20mm-30mm or 30mm-40mm. In addition to ensuring uniform heating, the above width and length of the through hole 7 can make the aluminum alloy layer 5 firmly attached at the through hole 7.

[0041] Further, as shown in Figure 4As shown, the side surface of the metal substrate 1 is provided with a plurality of reinforcing ribs 8, the width of the reinforcing rib 8 is 1mm-5mm, and the plurality of reinforcing ribs 8 are horizontally arranged, the reinforcing rib 8 can strengthen the hardness of the metal substrate 1, so that the metal substrate 1 is not easy to bend, and the flatness is ensured.

[0042] In addition, since the metal substrate 1 is square, the horizontal arrangement of the reinforcing rib 8 can better strengthen the hardness of the metal substrate 1, and the width of 1mm-5mm can make the reinforcing rib 8 ensure a certain hardness without occupying too much area.

[0043] Other configurations and operations of the integrated heating disc according to the embodiments of the present application are known to those skilled in the art, and will not be described in detail here.

[0044] In the description of the present application, the description of the terms "embodiment", "example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0045] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An integrated heat disc, characterized in that: The metal substrate and the heat generating component are connected; One side of the metal substrate is fixedly connected with one side of the heat generating component; The other side of the metal substrate and the other side of the heat generating component are provided with aluminum alloy layers, which wrap one end of the metal substrate and the heat generating component; The other end of the heat generating component is provided with a connector, which is in conductive connection with the heat generating component.

2. The integrated heat disc according to claim 1, wherein: The heat generating component comprises a first insulating layer, a heat generating film and a second insulating layer; The heat generating film is arranged between the first insulating layer and the second insulating layer; The first insulating layer is fixedly connected with one side of the metal substrate.

3. The integrated heat disc of claim 2, wherein: The metal substrate and the first insulating layer, the first insulating layer and the heat generating film, and the heat generating film and the second insulating layer are solidified by high-temperature sintering after surface coating.

4. The integrated heat disc of claim 2, wherein: The first insulating layer and the second insulating layer are made of mica film, quartz film, boron nitride film, boron nitride coating, Teflon layer, heat-conducting silica gel or heat-conducting silicone grease.

5. The integrated heat disc of claim 2, wherein: The heat generating film is provided with an NTC thermistor.

6. The integrated heat disc of claim 2, wherein: The connecting end of the connector is provided with a silver contact, and the heat generating film and the connector are in conductive connection through the silver contact.

7. The integrated heat disc of claim 1, wherein: The side of the metal substrate is provided with a plurality of through holes, the width of the through holes is 1mm-10mm or 10-20mm, and the length of the through holes is 1mm-10mm, 10mm-20mm, 20mm-30mm or 30mm-40mm.

8. The integrated heat disc of claim 7, wherein: The side of the metal substrate is provided with a plurality of reinforcing ribs, the width of the reinforcing ribs is 1mm-5mm, and the reinforcing ribs are arranged horizontally.

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