Fire door and energy storage cabinet

Abstract

This application relates to the field of energy storage technology, specifically to a fire door, and further to an energy storage cabinet. The fire door includes a door body, which includes at least: an outer door panel, inner door panels arranged at intervals on at least one side of the outer door panel, a heat insulation unit arranged to fill between the outer door panel and the inner door panel, and a gap formed on at least a portion of the outer periphery of the heat insulation unit to prevent the outer door panel and the inner door panel from directly contacting each other. By setting the door body with spaced outer door panels and inner door panels, the gap between the outer door panel and the inner door panel can be used to prevent the outer door panel and the inner door panel from directly contacting each other. The lack of direct contact between the inner door panel and the outer door panel reduces heat transfer between them. Combined with the heat insulation unit filled between them, the heat transfer between the fire-exposed and unexposed surfaces of the fire door is effectively reduced, thereby improving the fire resistance and heat insulation performance of the fire door and meeting the fire resistance and heat insulation requirements of the energy storage cabinet.

Description

Technical Field

[0001] This application relates to the field of energy storage technology, specifically to a fireproof door, and further to an energy storage cabinet. Background Technology

[0002] An energy storage cabinet is a device used to store electrical energy. Its main components include battery modules, a battery management system, an inverter, and an energy management system. The energy storage cabinet can store electrical energy when the power supply is sufficient and then release the electrical energy when the power demand is high or the power supply is insufficient. Based on the charge and discharge cycle of the battery, the energy storage cabinet will store excess electrical energy when the grid supply is sufficient, and release the stored electrical energy to meet the power demand when the power demand is high or the grid supply is insufficient.

[0003] Because the energy storage cabinet contains battery modules, it may emit smoke or catch fire due to thermal runaway during operation. Therefore, in actual use, the cabinet door of the energy storage cabinet needs to meet the standard of fire resistance for two hours to ensure that if a fire occurs inside, it will not affect other energy storage cabinets in the surrounding area in a short period of time, so as to slow down the spread of fire when the battery inside the energy storage cabinet experiences thermal runaway. To this end, it is necessary to improve the fire resistance and heat insulation performance of the fire door to ensure that the heat inside the energy storage cabinet is not transferred to the outside as much as possible, thereby meeting the fire protection requirements of the energy storage cabinet. Utility Model Content

[0004] The purpose of this invention is to provide a fireproof door and an energy storage cabinet that can effectively reduce heat transfer between the fire-exposed and unexposed surfaces of the fireproof door, improve the fire resistance and heat insulation performance of the fireproof door, and meet the fire protection requirements of the energy storage cabinet.

[0005] To achieve one of the aforementioned objectives, according to one aspect of this application, a fire door is provided, comprising a door body, said door body comprising at least:

[0006] Outer door panel;

[0007] The inner door panels are configured to be spaced apart and arranged on at least one side of the outer door panel;

[0008] A thermal insulation unit is configured to be filled between the outer door panel and the inner door panel;

[0009] A gap is formed at least partially on the outer periphery of the insulation unit so that the outer door panel and the inner door panel are not in direct contact.

[0010] In addition to one or more of the above, or as an alternative, in another embodiment, the fire door further includes:

[0011] The supporting shell and the flange are respectively formed on the side of the outer door panel and the inner door panel that are close to each other;

[0012] The flange is formed at the outer edge of the inner door panel and is configured to extend at its end to a distance from the supporting housing to form the gap therebetween.

[0013] In addition to one or more of the above, or as an alternative, in another embodiment, the support housing includes at least:

[0014] An outer reinforcing rib is formed on the inner side of the outer door panel edge and is distributed in a ring shape, and the gap is formed between the flange and the outer reinforcing rib.

[0015] The inner reinforcing rib is configured to be fixed inside the outer reinforcing rib and extend in the horizontal direction.

[0016] In addition to one or more of the above, or as an alternative, in another embodiment, at least one contact end of the outer reinforcing rib and the inner reinforcing rib at the connection with the outer door panel is provided with a plurality of notches spaced apart along their length; and / or

[0017] Both the outer reinforcing rib and the inner reinforcing rib are connected to the outer door panel by intermittent welding.

[0018] In addition to one or more of the above, or as an alternative, in another embodiment, the heat insulation unit is configured to fill the interior of the support housing and the cavity between the inner door panel and the outer door panel, and the three are fixed by locking members that pass sequentially through the inner door panel, the heat insulation unit inside the cavity, and the support housing.

[0019] In addition to one or more of the above, or as an alternative, in another embodiment, the locking member is configured as a self-tapping screw, and the self-tapping screw extends from one end away from the inner door panel and penetrates at least a portion of the thermal insulation unit inside the support housing.

[0020] In addition to one or more of the above, or as an alternative, in another embodiment, along the thickness direction of the door body, the cavity between the outer door panel and the inner door panel is filled with at least two layers of heat insulation units, and the joint positions of adjacent heat insulation units are staggered.

[0021] In addition to one or more of the above, or as an alternative, in another embodiment, the insulation unit is configured to be made of at least one of rock wool, ceramic wool, aerogel board, and silica nanofiber insulation board; and / or

[0022] The gap is configured to have a width greater than or equal to 3 mm.

[0023] In addition to one or more of the above, or as an alternative, in another embodiment, the fire door further includes:

[0024] A frame, wherein the door is configured to be rotatably mounted at one end to the frame;

[0025] A limiting element is disposed inside the frame and configured to abut against the other end of the door.

[0026] A fireproof unit is disposed at the connection between the frame and the door and is configured to expand when heated to slow the flow rate of smoke.

[0027] In addition to one or more of the above, or as an alternative, in another embodiment, the fire protection unit includes:

[0028] The first expansion strip is configured to press against the limiting member and to fill the gap between the limiting member and the inner side of the door body;

[0029] At least one second expansion strip is configured to be fixed to the inner wall of the frame and to form a certain gap with the outer periphery of the door.

[0030] In addition to one or more of the above, or as an alternative, in another embodiment, the limiting member is configured as a pressure plate detachably mounted inside the frame and located on the rotation path of the door.

[0031] In addition to one or more of the above, or as an alternative, in another embodiment, the fire door further includes:

[0032] A sealing strip is configured to be pressed between the frame and the door and to fill the gap between them; and / or

[0033] An exhaust vent is provided at the outer edge of the door and is used to exhaust the smoke that leaks out from the connection between the frame and the door.

[0034] In addition to one or more of the above, or as an alternative, in another embodiment, the fire door further includes:

[0035] A locking bar unit is constructed between the frame and the door and is used to mitigate settlement of the door when it is heated.

[0036] In addition to one or more of the above, or as an alternative, in another embodiment, the locking lever unit includes at least:

[0037] The guide member is configured to be fixed to the inner wall of the door body near the frame;

[0038] The locking rod is configured to slide through the inside of the guide member, and a locking pin is installed on the outside;

[0039] The limiting member is configured to be fixedly installed on the inner wall of the frame and has an installation position on the outer side for the locking rod to pass through;

[0040] When the door body approaches the frame, the locking rod can slide into the mounting position and drive the locking pin into the limiting member to achieve the connection between the locking rod and the limiting member.

[0041] In addition to one or more of the above, or as an alternative, in another embodiment, both the limiting member and the guiding member are configured as sheet metal parts; and / or

[0042] A heat insulation pad is also installed between the limiting component and the frame.

[0043] To achieve one of the aforementioned objectives, according to another aspect of this application, an energy storage cabinet is provided, the energy storage cabinet including a cabinet body and a fire door installed on the cabinet body as described in the foregoing aspects.

[0044] Compared with the prior art, the beneficial effects of this utility model are as follows: The fire door of this application is configured with an outer door panel and an inner door panel that are spaced apart. This allows the gap between the outer and inner door panels to be used, so that the outer and inner door panels are not in direct contact. The lack of direct contact between the inner and outer door panels reduces the heat transfer between them. Combined with the heat insulation unit filled between them, and the inner and outer door panels are connected and fixed with self-tapping screws, the heat transfer area between the inner and outer door panels can be reduced while meeting the structural strength requirements. This effectively reduces the heat transfer between the fire-exposed and unexposed surfaces of the fire door, thereby improving the fire resistance and heat insulation performance of the fire door and meeting the fire resistance and heat insulation requirements of energy storage cabinets. Attached Figure Description

[0045] The disclosure of this application will be more readily understood with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this application.

[0046] In the picture:

[0047] Figure 1 A three-dimensional structural diagram of the fire door body provided by this utility model;

[0048] Figure 2 A three-dimensional structural view of the fire door body provided by this utility model from another perspective;

[0049] Figure 3 This is a structural cross-sectional view of the fire door provided by this utility model;

[0050] Figure 4 for Figure 3 Enlarged view of a portion of point A in the middle;

[0051] Figure 5 for Figure 3 Enlarged view of a section at point B in the middle;

[0052] Figure 6 A three-dimensional structural diagram of the fire door provided by this utility model when the inner door panel and the heat insulation unit are removed;

[0053] Figure 7 for Figure 6 Enlarged view of a section at point C;

[0054] Figure 8 A three-dimensional structural diagram of the fire door provided for this utility model;

[0055] Figure 9 This is a structural cross-sectional view of the fire door provided by this utility model;

[0056] Figure 10 for Figure 9 Enlarged view of a section at point F in the middle;

[0057] Figure 11 for Figure 9 Enlarged view of a section at point D;

[0058] Figure 12 A three-dimensional structural diagram of the fire door when the outer door panel is removed, provided for this utility model;

[0059] Figure 13 for Figure 12 Enlarged view of a section at point E in the middle.

[0060] In the attached diagram: 1 door body, 11 outer door panel, 12 inner door panel, 13 heat insulation unit, 14 gap, 2 supporting shell, 21 outer reinforcing rib, 22 inner reinforcing rib, 23 notch, 3 flange, 4 frame, 5 limiting component, 6 fireproof unit, 61 first expansion strip, 62 second expansion strip, 7 sealing strip, 8 locking component, 9 locking rod unit, 91 guide component, 92 locking rod, 93 limiting component. Detailed Implementation

[0061] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0062] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0063] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the positions in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the position of the components in the accompanying drawings.

[0064] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium.

[0065] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0066] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0067] In existing technologies, because the energy storage cabinet contains battery modules, thermal runaway may occur during daily operation, causing smoke or fire, which could ignite the cabinet and spread to other nearby cabinets, leading to a larger fire. In practice, the cabinet door must meet a two-hour fire resistance standard to ensure that a fire does not affect other nearby cabinets in the short term, thus preventing a larger fire. Therefore, it is necessary to ensure that heat inside the energy storage cabinet is not transferred to the outside as much as possible.

[0068] Therefore, fireproofing treatment is applied to the cabinet doors of the energy storage cabinet to slow down the spread of fire when thermal runaway occurs inside the battery, improve the thermal stability of the energy storage cabinet, and meet the heat insulation and fire resistance requirements of the energy storage cabinet.

[0069] Figure 1This is a perspective view of a fire door according to one embodiment of the present application. The fire door includes a door body 1, which includes at least: an outer door panel 11, an inner door panel 12 arranged at intervals on at least one side of the outer door panel 11, a heat insulation unit 13 arranged to fill the space between the outer door panel 11 and the inner door panel 12, and a gap 14 formed on at least a portion of the outer periphery of the heat insulation unit 13 so that the outer door panel 11 and the inner door panel 12 are in a non-direct contact state.

[0070] Under this arrangement, refer to Figures 1-5 The fire door described in this article is configured with an outer door panel 11 and an inner door panel 12 spaced apart. The gap 14 between the outer door panel 11 and the inner door panel 12 allows the two panels to be in a non-direct contact state. The lack of direct contact between the inner door panel 12 and the outer door panel 11 reduces heat transfer between them. Combined with the heat insulation unit 13 filled between them, the heat transfer between the fire-exposed and unexposed surfaces of the fire door is effectively reduced, thereby improving the fire resistance and heat insulation performance of the fire door and meeting the fire resistance and heat insulation requirements of the energy storage cabinet.

[0071] It should be noted that the gap 14 formed on the outer periphery of the heat insulation unit 13 effectively blocks the contact and heat transfer between the outer door panel 11 and the inner door panel 12. Compared with the traditional spliced ​​door, the fire door in this embodiment has a simple structure and a significant heat insulation effect.

[0072] Specifically, refer to Figure 4 The gap 14 can be located at a portion of the outer periphery of the heat insulation unit 13, or at the entire outer periphery of the heat insulation unit 13. In this case, the inner door panel 12 and the outer door panel 11 partially cover the heat insulation unit 13, or completely expose the outer periphery of the heat insulation unit 13. The width of the gap 14 can be selected as needed, and this embodiment does not make a specific limitation.

[0073] The following will illustrate further specific implementation or refinement of the fire door through exemplary description, in order to further improve it or for other improvement considerations.

[0074] Further reference Figure 4 and Figure 5 The fire door further includes a support housing 2 and a flange 3 formed on the side of the outer door panel 11 and the inner door panel 12 that are close to each other; the flange 3 is formed at the outer edge of the inner door panel 12 and is configured to extend at its end to a distance from the support housing 2 to form the gap 14 therewith.

[0075] It can be understood that the gap 14 is formed between the outer door panel 11 and the inner door panel 12 by the support housing 2 and the flange 3 set on the side close to each other. In addition, the support housing 2 can enhance the structural strength of the door body 1 and also provide a structural basis for the installation of the heat insulation unit 13 and the inner door panel 12.

[0076] For example, the flange 3 is integrally formed on the inner door panel 12, and can be perpendicular to the supporting housing 2 with its end face maintaining a certain distance from the side of the supporting housing 2 near the inner door panel 12. Of course, the flange 3 can also extend beyond the supporting housing 2. In this case, the gap 14 is formed between the side of the supporting housing 2 and the flange 3. As long as non-direct contact between the outer door panel 11 and the inner door panel 12 can be achieved, this embodiment does not make specific limitations.

[0077] Furthermore, refer to Figure 4 , Figure 6 and Figure 7 The supporting housing 2 includes at least: an outer reinforcing rib 21 formed on the inner side of the edge of the outer door panel 11 and distributed in a ring, and an inner reinforcing rib 22 configured to be fixed to the inner side of the outer reinforcing rib 21 and extending in a horizontal direction, wherein the flange portion 3 and the outer reinforcing rib 21 form the gap 14.

[0078] It is easy to see that by setting the supporting shell 2 as annularly distributed outer reinforcing ribs 21 and inner reinforcing ribs 22 fixed inside the outer reinforcing ribs 21, the structural strength of the outer door panel 11 can be significantly improved, and the foundation can also be provided for the installation of the inner door panel 12 and the heat insulation unit 13.

[0079] Specifically, refer to Figure 4 The heat insulation unit 13 is filled inside the flange 3, and the gap 14 between the flange 3 and the outer reinforcing rib 21 is used to surround the outer periphery of the inner heat insulation unit 13. In addition to improving the structural strength of the outer door panel 11, the inner reinforcing rib 22 can further improve the structural strength of the middle position of the inner side of the outer door panel 11, thereby realizing the effective connection of the inner door panel 12, the outer door panel 11 and the heat insulation unit 13.

[0080] It should be noted that, in addition to the combined structure of the annularly distributed outer reinforcing ribs 21 and the horizontally extending inner reinforcing ribs 22, the aforementioned support shell 2 can also be other types of support components, as long as it can improve the structural strength of the door body 1 while achieving the effective installation of the inner door panel 12 and the outer door panel 11. This embodiment does not make specific limitations here.

[0081] In one embodiment, reference is made to... Figure 6 and Figure 7At least one contact end of the outer reinforcing rib 21 and the inner reinforcing rib 22 at the connection with the outer door panel 11 is provided with a plurality of recesses 23 arranged at intervals along their length direction.

[0082] It can be understood that by opening a notch 23 at the contact end where the outer reinforcing rib 21 and the inner reinforcing rib 22 connect with the outer door panel 11, the contact area between the outer reinforcing rib 21 and the inner reinforcing rib 22 and the outer door panel 11 can be reduced, thereby further slowing down the heat transfer between them and the outer door panel 11.

[0083] For example, the outer reinforcing rib 21 and the inner reinforcing rib 22 can be a square shell structure. The above-mentioned notch 23 can be on the edge of the end where the outer reinforcing rib 21, the inner reinforcing rib 22 and the outer door panel 11 contact, or it can be on the edge of both ends. Specifically, multiple notches can be arranged at equal intervals along their length direction, or they can be arranged in a non-equal interval manner, as long as the heat transfer between them and the outer door panel 11 can be reduced. This embodiment does not make specific limitations here.

[0084] In another embodiment, both the outer reinforcing rib 21 and the inner reinforcing rib 22 are connected to the outer door panel 11 by intermittent welding.

[0085] It is easy to see that by connecting the outer reinforcing rib 21 and the inner reinforcing rib 22 to the outer door panel 11 through intermittent welding, the heat transfer between them and the outer door panel 11 can be effectively reduced, and the effective connection between them and the outer door panel 11 can also be ensured.

[0086] It should be noted that the above-mentioned intermittent welding refers to the connection between the outer reinforcing rib 21 or the inner reinforcing rib 22 and the outer door panel 11, which adopts a method of welding a section of length and then leaving a section of length between the weld points, until the entire weld is completed. This method can reduce the heat transfer between the outer reinforcing rib 21 and the inner reinforcing rib 22 while ensuring the stability of the weld.

[0087] Of course, the connection between the supporting shell 2 and the outer door panel 11 can also adopt other fixing methods, which are not specifically limited in this embodiment.

[0088] In actual operation, this embodiment should be referred to Figure 4 The heat insulation unit 13 is configured to fill the interior of the support housing 2 and the cavity between the inner door panel 12 and the outer door panel 11, and is fixed by the locking member 8 that passes through the inner door panel 12, the heat insulation unit 13 inside the cavity and the support housing 2 in sequence.

[0089] In this arrangement, the heat insulation unit 13, which fills the space between the supporting shell 2 and the inner door panel 12 and the outer door panel 11, can effectively block heat transfer between the inner door panel 12 and the outer door panel 11. In addition, the locking member 8 fixes the three together, ensuring the structural strength of the door body 1.

[0090] In one embodiment, the locking member 8 is configured as a self-tapping screw, and the end of the self-tapping screw opposite to the inner door panel 12 extends and penetrates at least a portion of the heat insulation unit 13 inside the support housing 2.

[0091] It should be noted that using self-tapping screws to connect and fix the inner door panel 12 and the outer door panel 11 can reduce the heat transfer area between the inner door panel 12 and the outer door panel 11 while meeting the structural strength requirements.

[0092] Specifically, by setting the locking component 8 as a self-tapping screw, the tip of the self-tapping screw can be inserted into the heat insulation unit 13, and the material is continuously cut during the screwing process to form a hole that matches its own thread, so that the self-tapping screw and the heat insulation unit 13 can be effectively joined together, ensuring the structural strength of the door 1.

[0093] In actual operation, the gap 14 in this embodiment is configured to have a width greater than or equal to 3mm.

[0094] Actual testing showed that when the gap 14 between the inner door panel 12 and the outer door panel 11 is greater than 3 mm, the door body 1, assembled by self-tapping screws, inner door panel 12, outer door panel 11 and heat insulation unit 13, can achieve a test temperature of 950-1000℃ on the fire-exposed surface of the inner door panel 12, while the maximum temperature rise at the probe point on the unexposed surface of the outer door panel 11 is less than 180℃. This effectively blocks the heat transfer between the fire-exposed surface and the unexposed surface, and the door body 1 has strong heat insulation and fire resistance performance.

[0095] For example, the locking component 8 can also be other fasteners such as bolts, screws, or rivets, and the width of the gap 14 can also be adjusted as needed to meet different practical needs. This embodiment does not make specific limitations here.

[0096] In another embodiment, reference is made to... Figure 11 Along the thickness direction of the door body 1, the cavity between the outer door panel 11 and the inner door panel 12 is filled with at least two layers of heat insulation units 13, and the joint positions of adjacent heat insulation units 13 are staggered.

[0097] Specifically, by filling at least two layers of heat insulation units 13 between the outer door panel 11 and the inner door panel 12, heat transfer between the inner door panel 12 and the outer door panel 11 is effectively blocked. Furthermore, the joint positions of the two adjacent heat insulation units 13 are staggered, which further reduces the leakage of heat from the joint positions of the adjacent heat insulation units 13 and improves the heat insulation effect of the door 1.

[0098] For example, the material of the heat insulation unit 13 is configured to be at least one of rock wool, ceramic wool, aerogel board and silica nano heat insulation board, so as to meet the fire resistance requirements of different levels such as 1h, 1.5h and 2h. Of course, the heat insulation unit 13 can also be made of other heat insulation materials, as long as it can ensure effective heat insulation between the inner door panel 12 and the outer door panel 11. This embodiment does not make specific limitations here.

[0099] Further reference Figures 8-10 The fire door further includes: a frame 4, a limiting member 5, and a fireproof unit 6. Specifically, the door body 1 is configured to be rotatably mounted on the frame 4 at one end, the limiting member 5 is arranged inside the frame 4 and configured to allow the other end of the door body 1 to abut against it; the fireproof unit 6 is disposed at the connection between the frame 4 and the door body 1 and is configured to expand when heated to slow down the flow rate of smoke.

[0100] In this arrangement, by installing the door 1 on the frame 4, the fireproof unit 6 can effectively slow down the flow of smoke when a fire occurs inside the door 1, reduce the heat transfer between the fire-exposed and unexposed surfaces of the door 1, and the limiting member 5 can block the door 1 to connect the door 1 and the frame 4 in a suitable position to meet the requirements of a fire door.

[0101] In one embodiment, reference is made to... Figure 10 The fireproof unit 6 includes: a first expansion strip 61 configured to press against the limiting member 5 and fill the gap between the limiting member 5 and the inner side of the door body 1; and at least one second expansion strip 62 configured to be fixed to the inner wall of the frame 4 and form a certain gap with the outer periphery of the door body 1.

[0102] It is easy to see that the first expansion strip 61 can seal the joint between the inside of the door body 1 and the limiting member 5, thereby effectively blocking the transmission of smoke from the fire-facing side of the door body 1 to the joint of the frame body 4 in the event of a fire, and thus reducing the heat transfer from the fire-facing side of the door body 1.

[0103] The second expansion strip 62 is located in the gap between the outer periphery of the door body 1 and the inner wall of the frame 4. When the second expansion strip 62 is heated, it expands to seal the gap, thereby delaying the passage of flue gas through the gap. The gap is opposite to the gap 14 between the inner door body 1 and the outer door body 1. The expanded second expansion strip 62 can also effectively seal the outer periphery of the gap 14, further blocking the influence of the flue gas in the gap on the outer door panel 11 outside the gap 14, thereby further reducing the heat transfer on the back surface of the door body 1.

[0104] It should be noted that both the first expansion strip 61 and the second expansion strip 62 mentioned above can be fire-resistant expansion strips, which can expand when exposed to fire and play a role in fire prevention, smoke prevention, and heat insulation. Specifically, they can be made of materials with expansion properties (such as asbestos, mineral fibers, expandable graphite, etc.) and high-temperature resistant adhesives. The number and installation position of the first expansion strip 61 and the second expansion strip 62 can be selected as needed, and this embodiment does not make specific limitations here.

[0105] In another embodiment, reference is made to... Figure 10 The limiting member 5 is configured as a pressure plate that is detachably installed inside the frame 4 and located on the rotation path of the door 1.

[0106] It is easy to see that by setting a pressure plate on the rotation path of the door body 1, it is easy to block the door body 1 from rotating to the preset position, and the first expansion strip 61 can be fixed along the length of the pressure plate, thereby effectively sealing the gap between the pressure plate and the door body 1 and preventing the smoke from overflowing.

[0107] For example, refer to Figure 10 The aforementioned pressure plate can be an L-shaped plate, with one outer side installed on the inner side of the frame 4 via bolts and positioning holes, and the other side perpendicular to it used to install the first expansion strip 61; the aforementioned positioning holes can be oblong holes, thereby realizing the front and rear adjustment of the pressure plate installation position to correspond to different installation positions of the door 1. Of course, the aforementioned pressure plate can also adopt other shapes and installation methods, which are not specifically limited in this embodiment.

[0108] In actual operation, this embodiment should be referred to Figure 4 , Figure 5 and Figure 10 The fire door further includes a sealing strip 7 configured to be pressed between the frame 4 and the door 1 and used to fill the gap between them. The sealing strip 7 pressed between the frame 4 and the door 1 can achieve waterproofing at the connection between the door 1 and the frame 4.

[0109] For example, refer to Figure 10An L-shaped sealing strip mounting plate (not shown in the figure) is provided on the outer side of the frame 4 near the aforementioned gap. The second expansion strip 62 is fixed on the side of the L-shaped sealing strip mounting plate opposite to the door 1. The sealing strip 7 is installed on the L-shaped sealing strip mounting plate perpendicular to the outer side of the second expansion strip 62. The inner side of the door 1 is pressed onto the sealing strip 7.

[0110] For example, the sealing strip 7 can be an annular sealing strip, preferably made of V0 grade flame retardant material. The L-shaped sealing strip mounting plate is located on the periphery of the support housing 2 and is also distributed in an annular shape, thereby surrounding the sealing strip 7 around the support housing 2 of the door body 1 to achieve effective waterproofing at the connection between the door body 1 and the frame 4.

[0111] In a more specific embodiment, it also includes an exhaust hole (not shown in the figure) opened at the outer flange of the door body 1 and used to discharge the smoke leaking from the connection between the frame 4 and the door body 1. The exhaust hole can be used to quickly discharge some of the smoke leaking from the gap, so as to avoid it accumulating on the inside of the door body 1, thereby causing the door body 1 to heat up rapidly.

[0112] In actual operation, this embodiment should be referred to Figure 5 , Figure 6 , Figure 7 , Figure 12 , Figure 13 The fire door further includes a locking rod unit 9, which is constructed between the frame 4 and the door body 1 and is used to mitigate the settlement of the door body 1 when it is heated.

[0113] Specifically, the locking rod unit 9 includes at least: a guide member 91 configured to be fixed to the inner wall of the door body 1 near the frame 4, a locking rod 92 configured to slide through the guide member 91 and have a locking pin installed on the outside, and a limiting member 93 configured to be fixedly installed on the inner wall of the frame 4 and have an installation position formed on the outside for the locking rod 92 to pass through.

[0114] When the door 1 approaches the frame 4, the locking rod 92 can slide into the mounting position and drive the locking pin into the limiting member 93 to achieve the connection between the locking rod 92 and the limiting member 93.

[0115] It can be seen that by setting the guide member 91 on the inside of the door body 1, the locking rod 92 can be installed up and down. Combined with the limiting member 93 set on the inner wall of the frame 4 for the locking rod 92 to pass through, the locking rod 92 on the door body 1 can slide into the limiting member 93 on the frame 4 when the door is closed, thereby achieving effective connection and locking between the door body 1 and the frame 4.

[0116] Specifically, both the limiting member 93 and the guiding member 91 are configured as metal sheet metal parts (the specific shape can be selected according to the needs); by setting both the limiting member 93 and the guiding member 91 as metal materials, compared with traditional plastic door locks, metal parts can achieve high temperature resistance, avoiding the door 1 from sinking rapidly in the event of a fire, causing the door 1 to separate from the frame 4 and thus failing to provide effective heat insulation.

[0117] For example, a heat insulation pad (not shown in the figure) is also installed between the limiting member 93 and the frame 4. By using the heat insulation pad set between the limiting member 93 and the frame 4, the heat transfer between the frame 4 and the door 1 is further reduced, and the heat insulation effect is improved.

[0118] This embodiment also provides an energy storage cabinet, including a cabinet body and a fireproof door installed on the cabinet body as described above.

[0119] It can be seen that by installing the aforementioned fire door on the cabinet of the energy storage cabinet, and by setting the door body 1 as an outer door panel 11 and an inner door panel 12 spaced apart, the gap 14 between the outer door panel 11 and the inner door panel 12 can be used to make the outer door panel 11 and the inner door panel 12 not in direct contact. The lack of direct contact between the inner door panel 12 and the outer door panel 11 reduces the heat transfer between them. By using self-tapping screws to connect and fix the inner door panel 12 and the outer door panel 11, the heat transfer area between the inner door panel 12 and the outer door panel 11 can be reduced while meeting the structural strength requirements. Combined with the heat insulation unit 13 filled between them, the heat transfer between the fire-exposed surface and the unexposed surface of the fire door is effectively reduced, thereby improving the fire resistance and heat insulation performance of the fire door and meeting the fire resistance and heat insulation requirements of the energy storage cabinet.

[0120] The above examples primarily illustrate the fireproof door and the energy storage cabinet including the fireproof door of this application. Although only some embodiments of this application have been described, those skilled in the art should understand that this application can be implemented in many other forms without departing from its spirit and scope. Therefore, the examples and embodiments shown are considered illustrative rather than restrictive, and this application may cover various modifications and substitutions without departing from the spirit and scope of the technical solution of this application.

Claims

1. A fire door, characterized in that, Includes a door body, said door body comprising at least: Outer door panel; The inner door panels are configured to be spaced apart and arranged on at least one side of the outer door panel; A thermal insulation unit is configured to be filled between the outer door panel and the inner door panel; A gap is formed at least partially on the outer periphery of the insulation unit so that the outer door panel and the inner door panel are not in direct contact.

2. The fire door according to claim 1, characterized in that, The fire door also includes: The supporting shell and the flange are respectively formed on the side of the outer door panel and the inner door panel that are close to each other; The flange is formed at the outer edge of the inner door panel and is configured to extend at its end to a distance from the supporting housing to form the gap therebetween.

3. The fire door according to claim 2, characterized in that, The supporting housing includes at least: An outer reinforcing rib is formed on the inner side of the outer door panel edge and is distributed in a ring shape, and the gap is formed between the flange and the outer reinforcing rib. The inner reinforcing rib is configured to be fixed inside the outer reinforcing rib and extend in the horizontal direction.

4. The fire door according to claim 3, characterized in that, At least one contact end of the outer reinforcing rib and the inner reinforcing rib at the connection with the outer door panel is provided with a plurality of notches spaced apart along their length; and / or Both the outer reinforcing rib and the inner reinforcing rib are connected to the outer door panel by intermittent welding.

5. The fire door according to claim 2, characterized in that, The heat insulation unit is configured to fill the interior of the support housing and the cavity between the inner door panel and the outer door panel, and the three are fixed by locking members that are sequentially inserted through the inner door panel, the heat insulation unit inside the cavity, and the support housing.

6. The fire door according to claim 5, characterized in that, The locking member is configured as a self-tapping screw, and the end of the self-tapping screw opposite to the inner door panel extends and penetrates at least a portion of the thermal insulation unit inside the support housing.

7. The fire door according to claim 1, characterized in that, Along the thickness direction of the door body, the cavity between the outer door panel and the inner door panel is filled with at least two layers of heat insulation units, and the joints of adjacent heat insulation units are staggered.

8. The fire door according to claim 1, characterized in that, The insulation unit is configured to be made of at least one of rock wool, ceramic wool, aerogel board, and silica nano-insulation board; and / or The gap is configured to have a width greater than or equal to 3 mm.

9. The fire door according to claim 1, characterized in that, The fire door also includes: A frame, wherein the door is configured to be rotatably mounted at one end to the frame; A limiting element is disposed inside the frame and configured to abut against the other end of the door. A fireproof unit is disposed at the connection between the frame and the door and is configured to expand when heated to slow the flow rate of smoke.

10. The fire door according to claim 9, characterized in that, The fire protection unit includes: The first expansion strip is configured to press against the limiting member and to fill the gap between the limiting member and the inner side of the door body; At least one second expansion strip is configured to be fixed to the inner wall of the frame and to form a certain gap with the outer periphery of the door.

11. The fire door according to claim 9, characterized in that, The limiting member is configured as a pressure plate that is detachably mounted inside the frame and located on the rotation path of the door.

12. The fire door according to claim 9, characterized in that, The fire door also includes: A sealing strip is configured to be pressed between the frame and the door and to fill the gap between them; and / or An exhaust vent is provided at the outer edge of the door and is used to exhaust the smoke that leaks out from the connection between the frame and the door.

13. The fire door according to claim 9, characterized in that, The fire door also includes: A locking bar unit is constructed between the frame and the door and is used to mitigate settlement of the door when it is heated.

14. The fire door according to claim 13, characterized in that, The locking lever unit includes at least: The guide member is configured to be fixed to the inner wall of the door body near the frame; The locking rod is configured to slide through the inside of the guide member, and a locking pin is installed on the outside; The limiting member is configured to be fixedly installed on the inner wall of the frame and has an installation position on the outer side for the locking rod to pass through; When the door body approaches the frame, the locking rod can slide into the mounting position and drive the locking pin into the limiting member to achieve the connection between the locking rod and the limiting member.

15. The fire door according to claim 14, characterized in that, Both the limiting member and the guiding member are configured as sheet metal parts; and / or A heat insulation pad is also installed between the limiting component and the frame.

16. An energy storage cabinet, characterized in that, Includes a cabinet and a fire door installed on the cabinet as described in any one of claims 1-15.

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