Heat insulation structure

Abstract

The utility model provides a heat insulation structure which comprises a base, a heating disc and a heat insulation disc. The heating disc and the heat insulation disc are arranged in the base; the heat insulation disc covers the bottom of the heating disc, and a gap exists between the heat insulation disc and the heating disc so that a heat insulation space can be formed. According to the utility model, the heat insulation disc is adopted to cover the heating disc, and a physical heat insulation layer is formed between the heating disc and the peripheral injection molding part to separate the heating disc from the injection molding part, so that a direct heat conduction path for the peripheral injection molding part when the heating disc works is cut off, and the temperature resistance requirement for the peripheral injection molding part can be effectively reduced; the consumption of expensive heat-resistant materials is reduced, so that the manufacturing cost of the electric heating appliance is reduced; compared with a traditional fan heat dissipation mode, the heat insulation disc is small in size, flexible installation of the heat insulation structure is facilitated, noise generated during operation of the electric heating appliance is greatly reduced due to the arrangement of the heat insulation disc, and the use experience of a user is improved.

Description

Technical Field

[0001] This utility model relates to the field of thermal insulation technology, and more specifically to a thermal insulation structure. Background Technology

[0002] Currently, electric heating appliances generally use heating elements on heating plates to heat water or cook food, such as electric kettles, rice cookers, and induction cookers. However, heating plates generate high temperatures during operation, typically exceeding 100°C, and for high-power heating plates, the operating temperature far exceeds this value. This high-temperature environment places extremely high demands on the structural materials surrounding the heating plate, especially injection-molded parts, such as the plastic casing. Using high-temperature-resistant materials for all injection-molded parts would significantly increase the overall material cost of the electric heating appliance.

[0003] To mitigate the impact of heat transfer and radiation on surrounding injection-molded parts, the traditional approach is to add a DC fan to the bottom of the heating plate structure for heat dissipation. While this method can alleviate the high-temperature problem to some extent, it also makes the product structure more complex, occupies more space, and is not conducive to miniaturization design. Furthermore, the introduction of the fan increases development and manufacturing costs, and also brings additional noise and energy consumption issues, thus affecting the user experience. Utility Model Content

[0004] The purpose of this utility model is to overcome the defects of the prior art and provide a heat insulation structure to solve the technical problems of high cost, large size and poor user experience of heat dissipation structure of electric heating appliances.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a heat insulation structure, which includes: a base, a heating plate and a heat insulation plate; the heating plate and the heat insulation plate are disposed inside the base; the heat insulation plate covers the bottom of the heating plate and there is a gap between the heat insulation plate and the heating plate to form a heat insulation space.

[0007] In one embodiment, the heat insulation plate has a protruding enclosure on the side near the heating plate; the enclosure and the heat insulation plate enclose a receiving space, and the heating plate is placed in the receiving space.

[0008] In one embodiment, the enclosure is provided outside the side wall of the heating plate, and the enclosure is arc-shaped.

[0009] In one embodiment, the heat insulation plate is detachably connected to the base and / or the heating plate.

[0010] In one embodiment, the heat insulation plate is provided with a screw hole, and a first screw connector is inserted into the screw hole. The first screw connector is screwed to the base and / or the heating plate.

[0011] In one embodiment, a first stud is provided on the side of the heat insulation plate away from the heating plate, the first stud is provided corresponding to the screw hole, and the first stud is used to sleeve the first screw connector.

[0012] In one embodiment, a second stud is provided on the side of the heating plate near the heat insulation plate, and the second stud passes through the screw hole.

[0013] In one embodiment, the heating plate has a connecting portion on the side near the heat insulation plate, the heat insulation plate has a relief groove corresponding to the connecting portion, the connecting portion passes through the relief groove, and is screwed or snapped onto the base.

[0014] In one embodiment, the base includes: an upper shell and a base; the upper shell, the heating plate and the base are connected sequentially from top to bottom, the heat insulation plate is disposed between the side of the heating plate away from the upper shell and the base, and the end of the heat insulation plate away from the base abuts against the upper shell.

[0015] In one embodiment, the base further includes a protective shell; the protective shell covers the heating plate and the heat insulation plate, and the two ends of the protective shell are respectively connected to the upper shell and the chassis.

[0016] The beneficial effects of this utility model compared with the prior art are as follows: This utility model uses a heat insulation plate to cover the heating plate, forming a physical heat insulation layer between the heating plate and the surrounding injection molded parts, thereby separating the heating plate from the injection molded parts and cutting off the direct heat conduction path from the heating plate to the surrounding injection molded parts when it is working. This improves the heat dissipation effect of the electric heating appliance, effectively reduces the temperature resistance requirements of the surrounding injection molded parts, and helps to reduce the consumption of expensive heat-resistant materials, thereby reducing the manufacturing cost of the heat insulation structure and the electric heating appliance. Compared with the traditional fan cooling method, the heat insulation plate is small in size, which greatly reduces the space occupied by the heat insulation structure, simplifies the internal structure of the electric heating appliance, facilitates the flexible installation of the heat insulation structure, and the setting of the heat insulation plate greatly reduces the noise generated by the electric heating appliance during operation, improves the user experience, and further enhances the market competitiveness of the electric heating appliance.

[0017] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, it can be implemented according to the contents of the specification. In order to make the above and other objects, features and advantages of this utility model more obvious and understandable, the following are preferred embodiments, which are described in detail below. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a heat insulation structure provided by this utility model;

[0019] Figure 2 An exploded view of the heating plate and the heat insulation plate of the heat insulation structure provided by this utility model;

[0020] Figure 3 A schematic diagram of the connection structure between the heating plate and the heat insulation plate of the heat insulation structure provided by this utility model;

[0021] Figure 4 A schematic diagram of the structure of a heat insulation plate for the present invention;

[0022] Figure 5 A schematic diagram of the structure of a heating plate with a heat insulation structure provided by this utility model.

[0023] Figure label:

[0024] 1. Base; 11. Upper shell; 12. Chassis; 13. Protective shell;

[0025] 2. Heating plate; 21. Second stud; 22. Connecting part; 221. Partition wall; 222. Third stud; 23. Mounting slot;

[0026] 3. Insulation plate; 31. Enclosure section; 32. Clearance groove; 33. First stud;

[0027] 4. First screw connector;

[0028] 5. Second screw connector. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] It should be understood that, when used in this specification and the appended claims, the terms “comprising” and “including” indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0031] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0032] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0033] See Figure 1-5 As shown, this embodiment discloses a heat insulation structure.

[0034] The heat insulation structure of this embodiment is applicable to electric heating appliances that generate heat through the heating plate 2, separating the heating plate 2 from the injection-molded part around the heating plate 2 to isolate heat and reduce the heating of the injection-molded part. More specifically, the heat insulation structure of this embodiment is applied to an electric kettle. It is understood that in other embodiments, the heat insulation structure can be applied to a rice cooker, an electric oven, an induction cooker, or other electric heating appliances.

[0035] The heat insulation structure of this embodiment includes: a base 1, a heating plate 2 and a heat insulation plate 3; the heating plate 2 and the heat insulation plate 3 are disposed in the base 1; the heat insulation plate 3 is connected to the bottom of the heating plate 2 and there is a gap between the heat insulation plate 2 and the heating plate 2 to form a heat insulation space.

[0036] The heat insulation principle of the heat insulation structure in this embodiment is as follows: The heat insulation plate 3 blocks the heat conduction path of the heating plate 2 to diffuse outward. In the heat insulation space, the flow of air or other media is restricted, reducing the occurrence of heat convection and thus reducing heat transfer. Moreover, the air in the heat insulation space has a certain heat capacity and can absorb and store some heat. When the heating plate 2 generates heat, some of the heat will be absorbed by the heat insulation plate 3 and the air in the heat insulation space, thereby reducing the degree of heating of the injection molded part. That is, the heat insulation space establishes a temperature gradient for the heat insulation structure, so that the heat gradually decreases during the transfer process, and thus the heat is attenuated before it is transferred to the injection molded part. In addition, the heat insulation plate 3 is placed outside the heating plate 2, which can increase the reflection of the heat generated by the heating plate 2 and reduce the direct impact of heat radiation on the surrounding injection molded parts.

[0037] In this embodiment, the heat insulation structure uses a heat insulation plate 3 to cover the heating plate 2, forming a physical heat insulation layer between the heating plate 2 and the surrounding injection molded parts. This separates the heating plate 2 from the injection molded parts, thereby cutting off the direct heat conduction path from the heating plate 2 to the surrounding injection molded parts during operation. This improves the heat dissipation effect of the electric heating appliance and effectively reduces the temperature resistance requirements of the surrounding injection molded parts, helping to reduce the consumption of expensive heat-resistant materials, thus reducing the manufacturing cost of the heat insulation structure and the electric heating appliance. Compared with the traditional fan cooling method, the heat insulation plate 3 is small in size, which greatly reduces the space occupied by the heat insulation structure, simplifies the internal structure of the electric heating appliance, and facilitates flexible installation of the heat insulation structure. Furthermore, the setting of the heat insulation plate 3 significantly reduces the noise generated by the electric heating appliance during operation, improves the user experience, and further enhances the market competitiveness of the electric heating appliance.

[0038] Specifically, a baffle 31 protrudes from the side of the heat insulation plate 3 near the heating plate 2; the baffle 31 and the heat insulation plate 3 enclose a receiving space, and the heating plate 2 is placed in the receiving space. The baffle 31 increases the area of ​​the heat insulation plate 3 covering the heating plate 2, further enhancing the heat insulation effect, effectively preventing heat from being directly transferred to the external injection molded parts, and improving the reliability of the heat insulation structure.

[0039] Specifically, the enclosure 31 is installed outside the side wall of the heating plate 2, and the enclosure 31 is arc-shaped. The arc-shaped enclosure 31 can better fit the shape of the heating plate 2, thereby reducing heat leakage, increasing the sealing of the heat insulation space, improving the overall heat insulation effect of the heat insulation structure, preventing heat from being directly transferred to the base 1, and ensuring the structural stability and durability of the base 1.

[0040] Specifically, the heat insulation plate 3 is detachably connected to the base 1 and / or the heating plate 2. The connection between the heat insulation plate 3 and the base 1 or the heating plate 2 prevents the heat insulation plate 3 from shifting or even detaching from the heating plate 2 due to bumps or mechanical vibrations during the movement or use of the electric heating appliance, thus preventing heat from being directly transferred to the base 1 or surrounding injection-molded parts. This detachable connection design significantly reduces the difficulty of disassembling and maintaining the heat insulation plate 3, improving the installation efficiency and ease of maintenance of the electric heating appliance.

[0041] In this embodiment, the heat insulation plate 3 is screwed to the base 1 and / or the heating plate 2. The heat insulation plate 3 is connected to the base 1 and / or the heating plate 2 through the friction of the threads. The screw connection has a strong load-bearing capacity, ensuring a stable connection between the heat insulation plate 3 and the base 1 or the heating plate 2 when the electric heating appliance is working, preventing the heat insulation plate 3 from loosening or falling off due to excessive force. The screw connection has high connection strength, ensuring the stability and reliability of the electric heating appliance during long-term use, reducing failures and maintenance costs caused by connection problems, and helping to extend the service life of the electric heating appliance.

[0042] It is understood that in other embodiments, the heat insulation plate 3 can be used to snap onto the base 1 and / or the heating plate 2 instead of screwing, depending on actual needs. For example, the heat insulation plate 3 is provided with a buckle, and the base 1 and / or the heating plate 2 is provided with a corresponding slot. The buckle snaps into the slot to achieve the snap-fit ​​connection between the heat insulation plate 3 and the base 1 and / or the heating plate 2.

[0043] In this embodiment, the heat insulation plate 3 is connected to both the base 1 and the heating plate 2. The simultaneous connection of the heat insulation plate 3 to both the base 1 and the heating plate 2 further improves the stability of the heat insulation plate 3 installation. It also allows the heating plate 2 to be connected to the base 1 via the heat insulation plate 3, further increasing the connection stability of the heating plate 2 and preventing misalignment between the heat insulation plate 3 and the heating plate 2, thus ensuring the accuracy and reliability of the heat insulation in the insulation space.

[0044] It is understood that in other embodiments, the three heat insulation plates can be connected to the base 1 or the three heat insulation plates can be connected to the heating plate 2, depending on actual needs.

[0045] Specifically, the heat insulation plate 3 is provided with a screw hole, and a first screw connector 4 passes through the screw hole. The first screw connector 4 is screwed to the base 1 and / or the heating plate 2. The heat insulation plate 3 is connected to the base 1 and / or the heating plate 2 through the first screw connector 4, which ensures the firmness and reliability of the connection, and at the same time facilitates the disassembly and installation of the heat insulation plate 3.

[0046] In this embodiment, the first threaded component 4 is a screw. The screw can be directly screwed into the first stud 33 by the action of fingers, screwdriver or wrench to fix the heat insulation plate 3. It is efficient and convenient, and the screw is inexpensive, which helps to reduce the production cost of the heat insulation structure.

[0047] It is understood that in other embodiments, threaded fasteners such as rivets, threaded plugs, bolts and nuts may be used instead of screws.

[0048] Specifically, a first stud 33 is provided on the side of the heat insulation plate 3 away from the heating plate 2. The first stud 33 is provided corresponding to the screw hole and is used to fit the first screw connector 4. The heat insulation plate 3 is connected to the base 1 through the first screw connector 4. The first stud 33 wraps around the first screw connector 4 to prevent heat in the heat insulation space from being transferred to the outside of the heat insulation plate 3 through the first screw connector 4 and then diffused to the base 1 or other surrounding injection molded parts. Therefore, the setting of the first stud 33 further isolates heat and improves the heat insulation effect of the heat insulation plate 3.

[0049] Specifically, the base 1 abuts against the end of the first stud 33 furthest from the heat insulation plate 3. The first stud 33 provides additional support for the heat insulation plate 3, enhancing its stability and improving the structural compactness of the heat insulation structure.

[0050] Specifically, a second stud 21 is provided on the side of the heating plate 2 near the heat insulation plate 3, and the second stud 21 passes through a screw hole. A first stud 33 is sleeved on the outside of the second stud 21. In practice, the first screw connector 4 is screwed sequentially to the second stud 21, the first stud 33, and the base 1 to achieve accurate alignment and stable assembly of the heating plate 2 and the heat insulation plate 3. The connection of the heating plate 2, the heat insulation plate 3, and the base 1 is achieved by only one first screw connector 4, which greatly reduces the number of parts used, simplifies the overall structure of the heat insulation structure, and helps to reduce the material consumption and production cost of the heat insulation structure. The setting of the first stud 33 and the second stud 21 prevents the heat in the heat insulation space from being dissipated through the connection between the heating plate 2 and the heat insulation plate 3, further improving the protection effect of the heat insulation plate 3 on the base 1 or surrounding injection molded parts.

[0051] Specifically, the heating plate 2 has a connecting part 22 on the side near the heat insulation plate 3, and the heat insulation plate 3 has a relief groove 32 corresponding to the connecting part 22. The connecting part 22 passes through the relief groove 32 and is screwed or snapped onto the base 1. The setting of the connecting part 22 allows the heating plate 2 to be directly connected to the base 1, which enhances the connection firmness of the heating plate 2. At the same time, the opening of the relief groove 32 avoids interference between the heat insulation plate 3 and the connecting part 22, ensuring the connection between the connecting part 22 and the base 1.

[0052] Specifically, the clearance groove 32 is adapted to the shape of the connecting part 22 and is set to fit against the outer wall of the connecting part 22. The clearance groove 32 is set to fit against the outer wall of the connecting part 22, which reduces the possibility of heat being transferred outward through the gap between the connecting part 22 and the heat insulation plate 3, thereby further improving the heat insulation effect of the heat insulation plate 3.

[0053] In this embodiment, the connecting part 22 includes a partition wall 221 and a third stud 222; the partition wall 221 encloses the third stud 222, and the clearance groove 32 abuts against the side of the partition wall 221 away from the third stud 222. The partition wall 221, while avoiding interference with the third stud 222, enhances the heat blocking effect of the heating plate 2. The enclosure part 31 is connected to the partition wall 221 at intervals to block the heat insulation space from the side of the heating plate 2 and the heat insulation plate 3, so that the heat insulation space becomes a buffer space for heat transfer, thereby reducing the damage of high temperature to the base 1 or the injection molded parts around the heating plate 2.

[0054] More specifically, a second screw connector 5 is threaded through the third stud 222, and the second screw connector 5 is screwed to the heating plate 2 and the base 1. The heating plate 2 is directly connected to the base 1 through the second screw connector 5, which ensures the firmness and reliability of the connection of the heating plate 2, and at the same time facilitates the disassembly and installation of the heating plate 2.

[0055] In this embodiment, the second threaded component 5 is a screw. The screw can be directly screwed into the third stud 222 by the action of fingers, screwdrivers or wrenches to fix the heating plate 2. This is efficient and convenient, and the screw is inexpensive, which helps to reduce the production cost of the heat insulation structure.

[0056] It is understood that in other embodiments, threaded fasteners such as rivets, threaded plugs, bolts and nuts may be used instead of screws.

[0057] In this embodiment, there are two of each of the second stud 21, the first stud 33, the clearance groove 32, and the connecting portion 22. The second stud 21 and the connecting portion 22 are spaced apart and evenly distributed on the side of the heating plate 2 near the heat insulation plate 3, and the first stud 33 and the clearance groove 32 are spaced apart and evenly distributed on the side of the heat insulation plate 3 near the heating plate 2, and are respectively positioned opposite the second stud 21 and the connecting portion 22.

[0058] It is understood that, in other embodiments, the number of the second stud 21, the first stud 33, the clearance groove 32, or the connecting portion 22 can be adjusted as needed.

[0059] Specifically, the heating plate 2 has a mounting groove 23 at its center, which is positioned directly opposite the center of the insulation plate 3. The mounting groove 23 is used to install the heating element. The mounting groove 23 being positioned directly opposite the center of the insulation plate 3 ensures that the heating element, such as the heating tube, heating plate, or heating wire, is located at the center of the heating plate 2. When the heating element is working, the heat generated can be evenly distributed from the center of the insulation space to the insulation space and the periphery of the insulation plate 3, avoiding problems such as local overheating or uneven heat distribution.

[0060] Specifically, the insulation plate 3 is made of microporous calcium silicate. Microporous calcium silicate is a porous insulation material. Compared to traditional insulation materials such as silicone rubber, fiberglass, and polyurethane foam, microporous calcium silicate has extremely low thermal conductivity and excellent high-temperature resistance, allowing for long-term use at temperatures up to 1000℃. It also exhibits good chemical stability, not readily reacting with most chemicals, which helps improve the durability of the insulation plate 3 and thus extends the service life of the insulation structure. Simultaneously, microporous calcium silicate has a low density, approximately 200-300 kg / m³. 3 This helps reduce the weight of the insulation plate 3, thereby improving the lightness and ease of use of the insulation structure. In addition, microporous calcium silicate has good mechanical properties and is not easily broken. When subjected to external impact, microporous calcium silicate can maintain the integrity of the structure, thereby improving the load-bearing capacity and durability of the insulation plate 3.

[0061] It is understood that in other embodiments, silicone rubber, glass fiber, polyurethane foam or other thermal insulation materials may be used instead of microporous calcium silicate, depending on actual needs.

[0062] In this embodiment, the gap between the heating plate 2 and the heat insulation plate 3 is greater than or equal to 3mm. When the heating plate 2 is working, it generates a large amount of heat. If the gap between the heating plate 2 and the heat insulation plate 3 is too small, the heat insulation plate 3 cannot effectively isolate the heat, which may lead to heat accumulation, or even cause the base 1, surrounding injection molded parts, or other components in the electric heating appliance to overheat, thereby causing a fire and posing a significant safety hazard. Setting a gap of greater than or equal to 3mm can ensure that the air in the heat insulation space and the heat insulation plate 3 have enough space to absorb and disperse heat, thereby reducing the risk of overheating.

[0063] Specifically, the base 1 includes an upper shell 11 and a base 12; the upper shell 11, heating plate 2, and base 12 are connected sequentially from top to bottom, and a heat insulation plate 3 is disposed between the heating plate 2 on the side away from the upper shell 11 and the base 12. The sequential connection of the upper shell 11, heating plate 2, heat insulation plate 3, and base 12 constitutes a stable heat insulation structure. The heat insulation plate 3 effectively blocks the heat conduction path between the heating plate 2 and the base 12, improving the heat dissipation performance of the electric heating appliance.

[0064] Specifically, the end of the heat insulation plate 3 away from the chassis 12 abuts against the upper housing 11. More specifically, the end of the enclosure portion 31 away from the heat insulation plate 3 abuts against the upper housing 11. The enclosure portion 31, the heating plate 2, and the upper housing 11 together enclose the heating plate 2 to form a stable heat insulation space, reducing the impact of heat on the surrounding injection molded parts.

[0065] Specifically, the base 1 also includes a protective shell 13; the protective shell 13 covers the heating plate 2 and the heat insulation plate 3, and its two ends are respectively connected to the upper shell 11 and the base 12. The protective shell 13 protects the heat insulation plate 3, the heating plate 2, and the internal structure of the electric heating appliance from external environmental interference, such as dust and moisture, ensuring the normal operation of the electric heating appliance, reducing the failure rate of the heat insulation structure and the electric heating appliance, thereby extending the service life of the electric heating appliance. The heat insulation plate 3 blocks direct heat transfer from the heating plate 2 to the protective shell 13, reducing the degree of heat received by the protective shell 13, effectively reducing the surface temperature of the protective shell 13 and the base 12, thereby reducing the risk of burns to users and improving user comfort and satisfaction.

[0066] In practice, the heating plate 2 is first placed above the base plate 12, and the third stud 222 and the base plate 12 are screwed together by the second screw connector 5; the heat insulation plate 3 is inserted between the heating plate 2 and the base plate 12, and the heat insulation plate 3 is pushed up until the second stud 21 is inserted into the first stud 33, so that the heat insulation plate 3 covers the heating plate 2; the first screw connector 4 is screwed together with the second stud 21, the first stud 33 and the base plate 12; the protective shell 13 is connected above the base plate 12; finally, the upper shell 11 is abutted against the heating plate 2 and the enclosure part 31, and is fixedly connected to the protective shell 13.

[0067] This embodiment provides a heat insulation structure that uses a heat insulation plate to cover the heating plate, forming a physical heat insulation layer between the heating plate and the surrounding injection molded parts. This separates the heating plate from the injection molded parts, thereby cutting off the direct heat conduction path from the heating plate to the surrounding injection molded parts during operation. This improves the heat dissipation effect of the electric heating appliance and effectively reduces the temperature resistance requirements of the surrounding injection molded parts, helping to reduce the consumption of expensive heat-resistant materials, thus reducing the manufacturing cost of the heat insulation structure and the electric heating appliance. Compared with the traditional fan cooling method, the heat insulation plate is small in size, which greatly reduces the space occupied by the heat insulation structure, simplifies the internal structure of the electric heating appliance, facilitates flexible installation of the heat insulation structure, and the setting of the heat insulation plate greatly reduces the noise generated by the electric heating appliance during operation, improves the user experience, and further enhances the market competitiveness of the electric heating appliance.

[0068] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A heat insulation structure, characterized in that, include: The base, heating plate, and heat insulation plate are disposed inside the base; the heat insulation plate covers the bottom of the heating plate and there is a gap between the heat insulation plate and the heating plate to form a heat insulation space.

2. The heat insulation structure according to claim 1, characterized in that, The heat insulation plate has a protruding enclosure on one side near the heating plate; the enclosure and the heat insulation plate enclose a receiving space, and the heating plate is placed in the receiving space.

3. The heat insulation structure according to claim 2, characterized in that, The enclosure is installed outside the side wall of the heating plate, and the enclosure is arc-shaped.

4. The heat insulation structure according to claim 1, characterized in that, The heat insulation plate is detachably connected to the base and / or the heating plate.

5. The heat insulation structure according to claim 4, characterized in that, The heat insulation plate is provided with a screw hole, and a first screw connector is inserted into the screw hole. The first screw connector is screwed to the base and / or the heating plate.

6. The thermal insulation structure according to claim 5, characterized in that, The heat insulation plate is provided with a first stud on the side away from the heating plate. The first stud is provided corresponding to the screw hole and is used to fit the first screw connector.

7. The heat insulation structure according to claim 6, characterized in that, The heating plate is provided with a second stud on the side near the heat insulation plate, and the second stud passes through the screw hole.

8. The heat insulation structure according to claim 1, characterized in that, The heating plate has a connecting part on the side near the heat insulation plate, and the heat insulation plate has a relief groove corresponding to the connecting part. The connecting part passes through the relief groove and is screwed or snapped to the base.

9. The thermal insulation structure according to claim 1, characterized in that, The base includes an upper shell and a base plate; the upper shell, the heating plate and the base plate are connected in sequence from top to bottom, the heat insulation plate is disposed between the side of the heating plate away from the upper shell and the base plate, and the end of the heat insulation plate away from the base plate abuts against the upper shell.

10. The thermal insulation structure according to claim 9, characterized in that, The base also includes a protective shell; the protective shell covers the heating plate and the heat insulation plate, and the two ends of the protective shell are respectively connected to the upper shell and the chassis.

Images