Heat insulation door plate and heat insulation door

By designing multi-layer ceramic heat insulation panels and perlite-filled door core panels in the entrance doors, combined with the use of seals, the problem of insufficient thermal insulation performance in the entrance doors in cold areas is solved, and the effect of low thermal conductivity and energy-saving and low carbon is achieved.

CN222835641UActive Publication Date: 2025-05-06HESHAN TIANSHAN METAL MATERIAL PROD CO LTD
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Patent Information

Application Number
CN202421314739.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-07
Publication Date
2025-05-06
Estimated Expiration
2034-06-07

AI Technical Summary

Technical Problem

The thermal insulation performance of existing entrance doors does not meet the building insulation requirements in cold areas, resulting in the indoor environment requiring more energy to maintain temperature.

Method used

A thermal insulation panel is designed, including ceramic thermal insulation panels and perlite-filled door core panels, forming a thermal insulation barrier with low thermal conductivity through a combination of multi-layer structures and seals.

Benefits of technology

It effectively reduces heat transfer between indoor and outdoor, reduces energy consumption for maintaining temperature in the indoor environment, and achieves the effect of energy saving and low carbon.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of door bodies, in particular to a heat insulation door plate and a heat insulation door. The heat-insulating door plate comprises a door plate body. The door plate body comprises a first outer plate, a first heat insulation plate, a door core plate, a second heat insulation plate and a second outer plate. The first heat insulation plate is arranged on one side of the first outer plate, the door core plate is arranged on the side, away from the first outer plate, of the first heat insulation plate, and the door core plate is filled with perlite. The second heat insulation plate is arranged on the side, away from the first heat insulation plate, of the door core plate, and the first heat insulation plate and the second heat insulation plate are ceramic heat insulation plates. The second outer plate is arranged on the side, away from the door core plate, of the second heat insulation plate. According to the heat insulation door plate, it can be guaranteed that the heat insulation door plate has the characteristic of being low in heat conductivity coefficient, and therefore it is guaranteed that the heat conductivity coefficient of the heat insulation door plate can meet the building heat preservation effect in a cold region, indoor and outdoor heat transfer is reduced, energy consumed by the indoor environment for maintaining the temperature is reduced, and the energy-saving and low-carbon effects are achieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of door bodies, in particular to an insulation door panel and an insulation door. Background Art

[0002] At present, the standard requirements for aluminum-wood fireproof entrance doors do not have high requirements for thermal insulation performance, and the heat transfer coefficient K value is above 2.0, or even higher, or no attention is paid. However, with the development of society and the improvement of living standards, the requirements and quality of living environment are getting higher and higher, and energy saving, environmental protection, green and low carbon have become the mainstream. Therefore, the requirements for thermal insulation performance of entrance doors in China have become more and more important, especially in cold and severe cold areas, the thermal insulation performance of entrance doors has been paid more and more attention.

[0003] Cold areas need heating in winter, and currently more attention is paid to thermal insulation of walls and floors. Although there are standards for entrance doors, the standards in cities in various regions are increasing year by year, resulting in the thermal insulation performance of entrance doors not meeting the building insulation requirements in cold areas. Utility Model Content

[0004] In order to solve the defects of the prior art, the utility model provides an insulation door panel and an insulation door, which can ensure that the insulation door panel has the characteristic of low thermal conductivity, thereby ensuring that the thermal conductivity of the insulation door panel can meet the building insulation effect in cold areas, reduce heat transfer between indoor and outdoor, and further reduce the energy consumed by the indoor environment to maintain the temperature, thereby achieving energy saving and low carbon effects.

[0005] In order to solve the above technical problems, the utility model provides an insulation door panel, including a door panel body, wherein the door panel body includes:

[0006] first outer panel;

[0007] a first heat insulation board, disposed on one side of the first outer board;

[0008] A door core board is arranged on a side of the first heat insulation board away from the first outer board, and the interior of the door core board is filled with perlite;

[0009] A second heat insulation board is arranged on a side of the door core board away from the first heat insulation board, and the first heat insulation board and the second heat insulation board are both ceramic heat insulation boards;

[0010] The second outer panel is arranged on a side of the second heat insulation panel away from the door core panel.

[0011] The thickness of the first heat insulation board and the second heat insulation board are both 7mm-9mm, and the thickness of the perlite in the door core board is 25-30mm.

[0012] Wherein, the door core plate comprises a door core and two door plates, wherein one of the door plates is arranged on a side of the door core facing the first heat insulation plate, and the other door plate is arranged on a side of the door core facing the second heat insulation plate;

[0013] The door core is provided with an inner frame, and the inner frame and the two door panels are arranged to form a filling cavity, and the filling cavity is used to fill perlite.

[0014] Wherein, the door panel body further comprises:

[0015] Two edges, the two edges are arranged opposite to the edges of the door panel body;

[0016] The edge is formed with a first groove and a second groove, and the opening of the first groove and the opening of the second groove are both facing the door panel body;

[0017] The first outer panel, the first heat insulation panel and one of the door panels are sequentially clamped in the first groove, and the second outer panel, the second heat insulation panel and another of the door panels are sequentially clamped in the second groove.

[0018] The edge is also formed with a third groove, the third groove is arranged between the first groove and the second groove, the opening direction of the third groove is opposite to the opening directions of the first groove and the second groove, and the third groove is provided with a first sealing member;

[0019] One of the edges is also formed with a fourth groove, which is arranged on the side of the edge facing away from the door panel body. The opening direction of the fourth groove is perpendicular to the opening direction of the third groove, and the fourth groove is provided with a second sealing member.

[0020] The edge of the first outer plate is covered with a heat-resistant member, the edge of the second outer plate is covered with a heat-resistant member, and both the first outer plate and the second outer plate are in contact with the wall surface of the edging through the heat-resistant member.

[0021] Wherein, a heat insulating member is provided on the side wall surface of the edging, and the thickness of the heat insulating member is greater than or equal to 70 μm.

[0022] Wherein, a fireproof board is arranged between the door core board and the third groove, and the width of the fireproof board is 5mm-8mm.

[0023] Correspondingly, the utility model also provides an insulation door, comprising a door frame and any one of the insulation door panels described above, wherein the insulation door panel is installed inside the door frame, the door frame is provided with an installation groove, the opening of the installation groove faces the second outer panel, and the installation groove is provided with a third sealing member.

[0024] Wherein, the side wall of the door frame is provided with a heat insulating member, and the thickness of the heat insulating member is greater than or equal to 70 μm.

[0025] The implementation of this utility model has the following beneficial effects:

[0026] According to the heat-insulating door panel of the embodiment of the utility model, the first outer panel can face the outdoor environment, and the second outer panel can face the indoor environment. By utilizing the heat-insulating effect of the first heat-insulating panel and the second heat-insulating panel, a heat-insulating barrier is formed between the outdoor environment where the first outer panel is located and the indoor environment where the second outer panel is located, thereby blocking the heat transfer between the outdoor environment and the indoor environment.

[0027] Since the first insulation board and the second insulation board are both ceramic insulation boards and the door core board is filled with perlite, the low thermal conductivity of the ceramic insulation board and perlite is used to ensure that the insulation door panel has a low thermal conductivity, thereby ensuring that the thermal conductivity of the insulation door panel can meet the building insulation requirements in cold areas, reduce indoor and outdoor heat transfer, and then reduce the energy consumed to maintain the temperature in the indoor environment, thereby achieving energy saving and low carbon effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the heat-insulating door panel of the utility model;

[0029] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0030] Figure 3 yes Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0031] Figure 4 It is a structural schematic diagram of one of the hemming of the utility model;

[0032] Figure 5 It is a structural schematic diagram of another hemming of the utility model;

[0033] Figure 6 It is a structural schematic diagram of a door frame of the utility model;

[0034] Figure 7 It is a schematic diagram of the connection structure between the heat insulating member and the first outer panel or the second outer panel of the utility model. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail with reference to the accompanying drawings. It is hereby stated that the directional words such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the utility model are only based on the accompanying drawings of the utility model, and are not specific limitations of the utility model.

[0036] The thermal insulation door panel provided by the utility model can ensure that the thermal insulation door panel has the characteristic of low thermal conductivity, thereby ensuring that the thermal conductivity of the thermal insulation door panel can meet the building insulation effect in cold areas, reduce heat transfer between indoor and outdoor, and further reduce the energy consumed by the indoor environment to maintain the temperature, thereby achieving energy saving and low carbon effects.

[0037] In one embodiment of the present invention, Figures 1 to 7 As shown, the heat-insulating door panel includes a door panel body 1. The door panel body 1 includes a first outer panel 11, a first insulation board 12, a door core panel 13, a second insulation board 14 and a second outer panel 15. The first insulation board 12 is arranged on one side of the first outer panel 11, the door core panel 13 is arranged on the side of the first insulation board 12 away from the first outer panel 11, and the door core panel 13 is filled with perlite. The second insulation board 14 is arranged on the side of the door core panel 13 away from the first insulation board 12, and the first insulation board 12 and the second insulation board 14 are both ceramic insulation boards. The second outer panel 15 is arranged on the side of the second insulation board 14 away from the door core panel 13. That is, the first insulation board 12 is arranged between the first outer panel 11 and the door core panel 13, and the second insulation board 14 is arranged between the second outer panel 15 and the door core panel 13, so that both sides of the door core panel 13 can be insulated.

[0038] According to the heat-insulating door panel of the embodiment of the utility model, the first outer panel 11 can face the outdoor environment, and the second outer panel 15 can face the indoor environment. By utilizing the heat-insulating effect of the first heat-insulating panel 12 and the second heat-insulating panel 14, a heat-insulating barrier is formed between the outdoor environment where the first outer panel 11 is located and the indoor environment where the second outer panel 15 is located, thereby blocking the heat transfer between the outdoor environment and the indoor environment.

[0039] Since the first insulation board 12 and the second insulation board 14 are both ceramic insulation boards, the door core board 13 is filled with perlite, and the low thermal conductivity of the ceramic insulation board and perlite is utilized to ensure that the insulation door panel has the characteristic of low thermal conductivity, thereby ensuring that the thermal conductivity of the insulation door panel can meet the building insulation requirements in cold areas, reduce indoor and outdoor heat transfer, and further reduce the energy consumed to maintain the temperature of the indoor environment, thereby achieving energy saving and low carbon effects.

[0040] It should be noted here that the first outer panel 11 may also face the indoor environment, and the second outer panel 15 may also face the outdoor environment, and the specific selection and adjustment can be made according to actual conditions.

[0041] The thickness of the first insulation board 12 and the second insulation board 14 are both 7mm-9mm, preferably, the thickness of the first insulation board 12 and the second insulation board 14 are both 8mm. The thickness of the perlite in the door core board 13 is 25-30mm, preferably, the thickness of the perlite in the door core board 13 is 27mm. By using the first insulation board 12 and the second insulation board 14 with a thickness of 8mm for heat insulation, and using the perlite with a thickness of 27mm for heat insulation, the heat transfer distance can be increased, thereby ensuring the heat preservation function of the insulation door, and reducing the amount of heat absorbed by the second outer board 15 and the second insulation board 14 from the indoor environment, so as to further reduce the energy consumed by the indoor environment to maintain the temperature, and ensure that the heat transfer coefficient of the insulation door can be maintained at 1.6-1.8.

[0042] Among them, Figure 1 and Figure 2 As shown, the door core board 13 includes a door core 131 and two door panels 132, wherein one door panel 132 is arranged on the side of the door core 131 facing the first heat insulation board 12, and the other door panel 132 is arranged on the side of the door core 131 facing the second heat insulation board 14, so as to enhance the overall strength of the door core board 13, enable the door core board 13 to withstand greater external force and pressure, and ensure the structural stability of the door core board 13. In this embodiment, the door panel 132 is preferably made of galvanized sheet, and the thickness of the door panel 132 is 0.8 mm.

[0043] The door core 131 is provided with an inner frame 133, and the inner frame 133 and the two door panels 132 are arranged to form a filling cavity, and the filling cavity is used to fill perlite to utilize the thermal insulation performance of the perlite to ensure the thermal insulation performance of the door core panel 13, thereby ensuring that the thermal insulation door panel has the characteristic of low thermal conductivity, ensuring that the thermal conductivity of the thermal insulation door panel meets the building insulation requirements.

[0044] In the embodiment of the utility model, in order to further ensure the heat insulation effect of the heat insulation door panel, as shown in FIG. Figure 3 , Figure 4 and Figure 5 As shown, the door panel body 1 further includes two edges 16, which are arranged opposite to the edge of the door panel body 1. The edges 16 are formed with a first groove 161 and a second groove 162, and the openings of the first groove 161 and the second groove 162 are both facing the door panel body 1.

[0045] The first outer panel 11 , the first heat insulating panel 12 and one of the door panels 132 are sequentially clamped in the first groove 161 , and the second outer panel 15 , the second heat insulating panel 14 and another of the door panels 132 are sequentially clamped in the second groove 162 .

[0046] It can be understood that the first outer panel 11, the first heat insulation board 12 and one of the door panels 132 are installed through the first groove 161, and the second outer panel 15, the second heat insulation board 14 and the other door panel 132 are installed through the second groove 162, so that the first outer panel 11, the first heat insulation board 12, the door core panel 13, the second heat insulation board 14 and the second outer panel 15 can fit tightly during installation to enhance the overall stability of the door panel body 1 and ensure that the door panel body 1 is not easily deformed or damaged when subjected to external force.

[0047] Preferably, avoidance notches are formed on the edges of the first outer panel 11 and the edges of the second outer panel 15, so that the first outer panel 11 is clamped in the first groove 161 through the avoidance notch, and the second outer panel 15 is clamped in the second groove 162 through the avoidance notch. While ensuring the thickness of the first outer panel 11 and the second outer panel 15, the structural stability of the overall door panel body 1 is ensured when the first outer panel 11 and the second outer panel 15 are installed in the edging 16.

[0048] Furthermore, in order to facilitate the installation between the heat-insulating door panel and the door frame 2, a gap is generally formed between the heat-insulating door panel and the door frame 2. In order to prevent the indoor and outdoor heat from being transferred through the gap between the heat-insulating door panel and the door frame 2, as shown in FIG. Figures 3 to 5 As shown, the edge 16 also forms a third groove 163, which is arranged between the first groove 161 and the second groove 162. The opening direction of the third groove 163 is opposite to the opening directions of the first groove 161 and the second groove 162. The third groove 163 is provided with a first seal 165, wherein the first seal 165 is preferably a fire-proof expansion sealing strip.

[0049] One of the edges 16 also forms a fourth groove 164, which is arranged on the side of the edge 16 away from the door panel body 1, and the opening direction of the fourth groove 164 is perpendicular to the opening direction of the third groove 163. The fourth groove 164 is provided with a second sealing member 166, wherein the second sealing member 166 is preferably a fire-proof expansion sealing strip.

[0050] It can be understood that when the heat-insulating door panel is closed in the door frame 2, the side wall of the edge 16 and the side wall of the door frame 2 can be sealed and abutted with the first seal 165 at the same time to block the heat transfer between the side wall of the edge 16 and the side wall of the door frame 2; at the same time, the side wall of the edge 16 and the side of the door frame 2 facing the outside (or the side of the door frame 2 facing the inside) can be sealed and abutted with the second seal 166 at the same time to block the heat transfer between the side wall of the edge 16 and the side of the door frame 2 facing the outside. Then, the first seal 165 and the second seal 166 are used to seal the gap between the heat-insulating door panel and the door frame 2 to block the indoor and outdoor heat from transferring from the gap between the heat-insulating door panel and the door frame 2, further enhancing the heat insulation effect of the heat-insulating door panel on the indoor and outdoor environments.

[0051] In this embodiment, a first clamping column is formed in the third groove 163, and the first seal 165 is installed in the third groove 163 through the first clamping column. A second clamping column is formed in the fourth groove 164, and the second seal 166 is installed in the fourth groove 164 through the second clamping column.

[0052] In the embodiment of the present utility model, Figure 1 , Figure 3 and Figure 7 As shown, the edge of the first outer panel 11 is covered with a heat-resistant member 17 , and the edge of the second outer panel 15 is covered with a heat-resistant member 17 . Both the first outer panel 11 and the second outer panel 15 abut against the wall surface of the edging 16 through the heat-resistant member 17 .

[0053] It is understandable that gaps may also be formed between the wall surface of the first outer panel 11 and the edging 16, and between the wall surface of the second outer panel 15 and the edging 16. In this embodiment, the heat-resistant member 17 is sealed and abutted between the edge of the first outer panel 11 and the edging 16, and between the edge of the second outer panel 15 and the edging 16, so as to seal the wall surface of the first outer panel 11, the wall surface of the second outer panel 15 and the edging 16, effectively reducing the gaps therein, thereby preventing indoor and outdoor heat from being transferred from the gaps between the edging 16 and the first outer panel 11 and the second outer panel 15, and further enhancing the heat insulation effect of the heat-insulating door panel on the indoor and outdoor environment.

[0054] In this embodiment, the heat-resistant member 17 is preferably a high-temperature resistant tape, the first outer panel 11 is a cast aluminum panel, and the second outer panel 15 is a medium-density fiberboard. After the edges of the cast aluminum panel and the medium-density fiberboard are wrapped with the high-temperature resistant tape, the cast aluminum panel and the medium-density fiberboard are clamped in the edge wrapping 16. The heat-insulating property of the high-temperature resistant tape is utilized to further improve the overall heat-insulating effect of the door panel body 1, prevent the transfer of heat, and reduce heat loss or transfer.

[0055] Furthermore, a heat insulating member is provided on the side wall surface of the edge 16, and the thickness of the heat insulating member is greater than or equal to 70 μm, so as to utilize the heat insulating member to enhance the heat insulation performance of the edge 16, further reduce heat transfer, and enhance the heat insulation effect. Preferably, in this embodiment, the heat insulating member is a heat insulating powder, and the heat insulating powder is sprayed on the side wall surface of the edge 16, and the side of the edge 16 facing away from the door panel body 1 is sprayed with the heat insulating powder twice, so as to ensure that the thickness of the heat insulating powder on the side of the edge 16 facing away from the door panel body 1 is not less than 70 μm.

[0056] It should be noted here that the thermal insulation powder can be polyester thermal insulation powder or acrylic thermal insulation powder, etc., and the specific selection can be made according to actual needs.

[0057] In this embodiment, if Figure 1 and Figure 3As shown, a fireproof board 18 is provided between the door core plate 13 and the third groove 163, and the width of the fireproof board 18 is 5mm-8mm, wherein the width of the fireproof board 18 is preferably 6mm. The fireproof board 18 can enhance the fireproof performance of the door panel body 1, thereby reducing the degree of damage to the door panel body 1 by fire, and buying time for personnel evacuation and fire fighting and rescue. At the same time, the fireproof board 18 also has a certain heat insulation performance. By changing the heat transfer medium between the third groove 163 and the door core plate 13 from air to the fireproof board 18, the heat transfer distance between the third groove 163 and the door core plate 13 can be increased, and the heat transfer rate between the third groove 163 and the door core plate 13 can be slowed down, thereby further enhancing the heat insulation effect of the door panel body 1.

[0058] Preferably, the fireproof board 18 is a light calcium fireproof board 18 .

[0059] The utility model also provides an insulation door, such as Figure 1 and Figure 6 As shown, the thermal insulation door includes a door frame 2 and the thermal insulation door panel described in any one of the above embodiments, the thermal insulation door panel is installed inside the door frame 2, the door frame 2 is provided with a mounting groove 21, the opening of the mounting groove 21 faces the second outer panel 15, and the mounting groove 21 is provided with a third sealing member 22, wherein the third sealing member 22 is preferably a fireproof expansion sealing strip.

[0060] It can be understood that, since the opening of the mounting groove 21 faces the second outer panel 15, when the thermal insulation door panel is closed on the door frame 2, the third sealing member 22 will contact the edge of the second outer panel 15 in the thermal insulation door panel, so as to utilize the third sealing member 22 to seal the gap between the edge of the second outer panel 15 and the door frame 2, thereby preventing the heat of the indoor environment from flowing out from the gap between the edge of the second outer panel 15 and the door frame 2, thereby enhancing the indoor thermal insulation effect.

[0061] Specifically, the third sealing member 22 abuts against the side wall of the second groove 162 in the edge binding 16 facing away from the door panel body 1 to ensure the sealing and heat preservation effect of the third sealing member 22 between the edge binding 16 and the door frame 2 .

[0062] Furthermore, the side wall of the door frame 2 is provided with a heat insulating member, and the thickness of the heat insulating member is greater than or equal to 70 μm, so as to utilize the heat insulating member to enhance the heat insulation performance of the door frame 2, further reduce heat transfer, enhance the heat insulation effect, and further reduce the gap between the door frame 2 and the heat-insulating door panel. Preferably, in this embodiment, the heat insulating member is a heat insulating powder, and the heat insulating powder is sprayed on the side wall surface of the door frame 2, and the side of the edge 16 facing away from the door panel body 1 is sprayed with the heat insulating powder twice, so as to ensure that the thickness of the heat insulating powder on the side of the door frame 2 facing away from the door panel body 1 is not less than 70 μm.

[0063] The above is a preferred embodiment of the present utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications are also considered to be within the protection scope of the present utility model.

Claims

1. An insulation door panel, comprising a door panel body, characterized in that: The door panel body comprises: first outer panel; a first heat insulation board, disposed on one side of the first outer board; A door core board is arranged on a side of the first heat insulation board away from the first outer board, and the interior of the door core board is filled with perlite; A second heat insulation board is arranged on a side of the door core board away from the first heat insulation board, and the first heat insulation board and the second heat insulation board are both ceramic heat insulation boards; The second outer panel is arranged on a side of the second heat insulation panel away from the door core panel.

2. The heat-insulating door panel according to claim 1, characterized in that The thickness of the first insulation board and the second insulation board are both 7mm-9mm, and the thickness of the perlite in the door core board is 25-30mm.

3. The heat-insulating door panel according to claim 1, characterized in that: The door core plate comprises a door core and two door plates, wherein one of the door plates is arranged on a side of the door core facing the first heat insulation plate, and the other door plate is arranged on a side of the door core facing the second heat insulation plate; The door core is provided with an inner frame, and the inner frame and the two door panels are arranged to form a filling cavity, and the filling cavity is used to fill perlite.

4. The heat-insulating door panel according to claim 3, characterized in that: The door panel body also includes: Two edges, the two edges are arranged opposite to the edges of the door panel body; The edge is formed with a first groove and a second groove, and the opening of the first groove and the opening of the second groove are both facing the door panel body; The first outer panel, the first heat insulation panel and one of the door panels are sequentially clamped in the first groove, and the second outer panel, the second heat insulation panel and another of the door panels are sequentially clamped in the second groove.

5. The heat-insulating door panel according to claim 4, characterized in that: The edge is further formed with a third groove, the third groove is arranged between the first groove and the second groove, the opening direction of the third groove is opposite to the opening directions of the first groove and the second groove, and the third groove is provided with a first sealing member; One of the edges is also formed with a fourth groove, which is arranged on the side of the edge facing away from the door panel body. The opening direction of the fourth groove is perpendicular to the opening direction of the third groove, and the fourth groove is provided with a second sealing member.

6. The heat-insulating door panel according to claim 4, characterized in that: The edge of the first outer plate is covered with a heat-resistant member, and the edge of the second outer plate is covered with a heat-resistant member. Both the first outer plate and the second outer plate are in contact with the wall surface of the edging through the heat-resistant member.

7. The heat-insulating door panel according to claim 6, characterized in that: The side wall surface of the hemming is provided with a heat insulating member, and the thickness of the heat insulating member is greater than or equal to 70 μm.

8. The heat-insulating door panel according to claim 5, characterized in that: A fireproof board is arranged between the door core board and the third groove, and the width of the fireproof board is 5mm-8mm.

9. An insulating door, characterized in that: It comprises a door frame and the heat insulation door panel according to any one of claims 1 to 8, wherein the heat insulation door panel is installed inside the door frame, the door frame is provided with a mounting groove, the opening of the mounting groove faces the second outer panel, and the mounting groove is provided with a third sealing member.

10. The heat-insulating door according to claim 9, characterized in that: The side wall of the door frame is provided with a heat insulating member, and the thickness of the heat insulating member is greater than or equal to 70 μm.