Cable sealing device and cabinet

Abstract

The utility model discloses a cable sealing device and a cabinet, the cable sealing device comprises a first protection assembly and a second protection assembly, the first protection assembly comprises a first pressing member and a fireproof expansion member sleeved on the periphery of a cable, and the fireproof expansion member is connected with the first pressing member. The second protection assembly is used for sealing the cabin connecting hole; the first pressing piece and the second protection assembly are located on the two opposite sides of the cabin connecting hole respectively, one is located in the first cabin, the other is located in the second cabin, and the cable is connected with the case through the first pressing piece and the second protection assembly. When the insulating layer of the cable burns, the fireproof expansion piece expands to fill the gap between the cable and the first pressing piece, so that flame is prevented from entering the other cabin from one cabin, and the fireproof performance of the cabin is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chassis fire protection, in particular to a cable sealing device and a cabinet. Background Art

[0002] As the degree of integration increases, cabinets are usually equipped with multiple power devices.

[0003] Power devices are typically placed in different locations or within different chassis within a cabinet. Different power devices have varying temperature sensitivities and risks of thermal runaway fire. To prevent them from interfering with each other, they are sealed in compartments. Power devices in different compartments require through-compartment connections using cables or piping.

[0004] However, cables passing through the cabin will cause holes in the cabin. Therefore, how to improve the fire resistance of the cabin and seal the cabin is a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0005] The purpose of the embodiments of this specification is to provide a cable sealing device to improve the fire resistance of a cabin. Another purpose of the present invention is to provide a chassis including the cable sealing device.

[0006] The cable sealing device provided in this embodiment includes:

[0007] A first protective assembly, comprising a first compression member and a fireproof expansion member sleeved on the outer periphery of the cable, wherein the fireproof expansion member is connected to the first compression member;

[0008] The second protective component is used to seal the cabin connection hole; the first pressing member and the second protective component are respectively located on opposite sides of the cabin connection hole, one is located in the first cabin and the other is located in the second cabin.

[0009] Optionally, the cable sealing device further includes a fireproof medium, and a fireproof compartment is formed between the first protective component, the second protective component, the outer wall of the cable and the inner wall of the compartment connection hole, and the fireproof medium is filled in the fireproof compartment.

[0010] Optionally, in the above-mentioned cable sealing device, one end of the fire-proof expansion piece is connected to the first clamping piece, the other end of the fire-proof expansion piece extends into the cabin connection hole, and at least part of the fire-proof medium is filled between the outer wall of the fire-proof expansion piece and the inner wall of the cabin connection hole.

[0011] Optionally, in the above cable sealing device:

[0012] The fireproof expansion member includes a first fireproof expansion portion and a second fireproof expansion portion; the first fireproof expansion portion and the second fireproof expansion portion are connected to form a threading hole for the cable to pass through;

[0013] Alternatively, the first pressing member includes a first pressing portion and a second pressing portion, and the first pressing portion and the second pressing portion are connected to form an expansion member installation hole for installing the fireproof expansion member.

[0014] Optionally, in the above-mentioned cable sealing device, the inner wall of the expansion member mounting hole cooperates with one end of the fireproof expansion member.

[0015] Optionally, in the above cable sealing device, the second protective component includes:

[0016] A sealing module, wherein the sealing module is sleeved on the outer periphery of the cable;

[0017] The mounting frame includes a first frame body and a second frame body, the first frame body and the second frame body are detachably connected, and the sealing module is embedded in the first frame body and the second frame body.

[0018] Optionally, the cable sealing device further includes a sealing gasket, which is sleeved on the outer circumference of the cable and located between the second protective component and the cabin connection hole.

[0019] A cabinet comprises: a chassis and a cable sealing device installed thereon, wherein the cable sealing device is any one of the cable sealing devices described above.

[0020] Optionally, the above cabinet further includes a partition assembly, which is located in the chassis to separate the inner cavity of the chassis into a first cabin and a second cabin, and the cable sealing device is installed on the outer shell of the chassis or the partition assembly.

[0021] Optionally, in the above cabinet, the cable sealing device is installed on the partition assembly, and the partition assembly includes:

[0022] a first fireproof panel, the first fireproof panel being a wall surface of the first cabin;

[0023] a second fireproof panel, the second fireproof panel being a wall surface of the second cabin;

[0024] An intermediate connecting plate, the first fireproof plate and the second fireproof plate are both provided with through holes, the opposite ends of the intermediate connecting plate are respectively connected to the through holes of the first fireproof plate and the through holes of the second fireproof plate, and the first fireproof plate, the intermediate connecting plate and the second fireproof plate form an installation space for installing the cable sealing device.

[0025] Optionally, in the above-mentioned cabinet, the first clamping member is installed on the first fireproof panel, and the second protective component is installed on the second fireproof panel, wherein the power of the power device in the first compartment of the chassis is greater than the power of the power device in the second compartment of the chassis.

[0026] In the above technical solution, the cable sealing device provided by the present invention includes a first protective component and a second protective component. The first protective component includes a first compression member and a fireproof expansion member sleeved on the outer periphery of the cable, and the fireproof expansion member is connected to the first compression member. The second protective component is used to seal the cabin connection hole through which the cable passes; the first compression member and the second protective component are respectively located on opposite sides of the cabin connection hole, one located in the first cabin and the other located in the second cabin, and the cable is connected to the chassis through the first compression member and the second protective component. When the insulation layer of the cable burns, the fireproof expansion member expands to fill the gap between the cable and the first compression member, thereby preventing the flame from entering the other cabin from one cabin, thereby improving the fireproof performance of the cabin. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0028] Figure 1 A schematic diagram of the installation position of the cable sealing device provided in an embodiment of the present utility model;

[0029] Figure 2 A schematic structural diagram of a fireproof expansion member provided in an embodiment of the present utility model;

[0030] Figure 3 for Figure 2 a side view of the fire-resistant intumescent member shown;

[0031] Figure 4 A schematic structural diagram of a second protective assembly provided in an embodiment of the present utility model;

[0032] Figure 5 A schematic structural diagram of a first pressing member provided in an embodiment of the present utility model;

[0033] Figure 6 This is a schematic structural diagram of a cabinet provided in an embodiment of the present utility model.

[0034] in Figure 1-6 middle:

[0035] 1-first protective assembly, 11-first pressing member, 1101-first pressing portion, 1102-second pressing portion, 1103-expansion member mounting hole, 12-fireproof expansion member, 1201-first fireproof expansion portion, 1202-second fireproof expansion portion;

[0036] 2-Second protection assembly, 21-Mounting frame, 2101-First frame, 2102-Second frame, 22-Sealing module

[0037] 3- Fire compartment;

[0038] 4-Sealing gasket;

[0039] 5-chassis, 51-first cabin, 52-second cabin;

[0040] 6- Cable;

[0041] 7- Fasteners;

[0042] 8-partition assembly, 801-second fire protection board, 802-first fire protection board, 803-middle connecting board, 8031-inner wall of the middle connecting board, 8032-outer wall of the middle connecting board. DETAILED DESCRIPTION

[0043] The core of the embodiments of this specification is to provide a cable sealing device to improve the fire resistance of the cabin. Another core of the present invention is to provide a chassis including the cable sealing device.

[0044] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and implementation methods.

[0045] like Figure 1 As shown, in one specific embodiment, the cable sealing device provided by the specific embodiment of the present invention includes a first protective assembly 1 and a second protective assembly 2. Specifically, the cable 6 connects the first cabin 51 and the second cabin 52 through the cabin connection hole. That is, the cabin connection hole is a hole connecting different cabins for the cable 6 to pass through. The first cabin is the cabin where the first protective assembly 1 is located, and the second cabin is the cabin where the second protective assembly 2 is located.

[0046] The first protective assembly 1 includes a first compression member 11 and a fire-resistant expansion member 12 disposed around the outer periphery of the cable 6. The fire-resistant expansion member 12 is connected to the first compression member 11. The outer periphery of the fire-resistant expansion member 12 is connected to the first compression member 11. The fire-resistant expansion member 12 may be a fire-resistant expansion strip. Specifically, the material of the fire-resistant expansion member 12 includes one or at least two of ammonium phosphate, ammonium polyphosphate, or urea.

[0047] The fireproof expansion member 12 can be an annular cylindrical structure. In this case, when installing, the fireproof expansion member 12 is set on the cable 6 from one end of the cable 6. Considering that the cable 6 is long and there are many locations for installing the fireproof expansion member 12, it is difficult to pass the fireproof expansion member 12 from the end. Figure 2 and Figure 3 As shown, in an optional embodiment, the fireproof expansion member 12 is a split structure, and the fireproof expansion member 12 includes a first fireproof expansion portion 1201 and a second fireproof expansion portion 1202. The first fireproof expansion portion 1201 and the second fireproof expansion portion 1202 are connected and merged, and a wire hole is formed in the middle for the cable 6 to pass through. Specifically, the structures of the first fireproof expansion portion 1201 and the second fireproof expansion portion 1202 can be the same or different. When the two are buckled together, a wire hole is formed in the middle for the cable 6 to pass through.

[0048] The second protective assembly 2 is used to seal the cabin connection hole; the first pressing member and the second protective assembly 2 are respectively located on opposite sides of the cabin connection hole, one located in the first cabin 51 and the other located in the second cabin 52. Specifically, the second protective assembly can be a sealing plug structure that is sleeved around the outer periphery of the cable 6.

[0049] Because traditional cable penetration seals typically use wall seals or waterproof terminals, they lack fire resistance. Some systems also use fire-retardant mud for sealing, but when the cable insulation catches fire, a gap remains between the fire-retardant mud and the cable's metal core, failing to prevent the spread of fire, resulting in lower fire resistance for the cable penetration. In this embodiment, the cable 6 passing through the cabin connection hole is connected via a first protective component 1 and a second protective component 2. When the insulation of the cable 6 burns, the fire-retardant expansion member 12 expands to fill the gap between the cable 6 and the first compression member 11, thereby preventing the flame from entering the other cabin and improving the fire resistance of the cabin.

[0050] The cable sealing device also includes a fireproofing medium, which can be a fireproofing sleeve or fireproofing clay. The fireproofing sleeve can be made of ceramic. When fireproofing clay is used, it can be a setting type to improve the sealing effect. A fireproofing chamber 3 is formed between the first protective assembly 1, the second protective assembly 2, the outer wall of the cable 6, and the inner wall of the cabin connection hole. The fireproofing medium is filled in the fireproofing chamber 3.

[0051] like Figure 2 and Figure 3 As shown, in a specific embodiment, the first fireproof expansion portion 1201 and the second fireproof expansion portion 1202 are both semi-circular structures. Since the first fireproof expansion portion 1201 and the second fireproof expansion portion 1202 are both semi-circular structures, workers do not need to determine which part is the first fireproof expansion portion 1201 and which part is the second fireproof expansion portion 1202 during assembly, thereby improving assembly efficiency.

[0052] like Figure 1 As shown, to improve the sealing of the cable 6 after a fire, thereby improving the fireproof performance, the first compression member 11 is compressed against one end of the fireproof expansion member 12, and the other end of the fireproof expansion member 12 extends into the fireproof compartment. Specifically, the fireproof expansion member 12 is disposed in abutment with the first compression member 11. Specifically, the length of the fireproof expansion member 12 along the extension direction of the cable 6 is greater than the length of the first compression member 11, generally extending the length of the fireproof expansion member 12 along the extension direction of the cable 6. As a result, the fireproof expansion member 12 expands to a greater length in the event of a fire, thereby promptly preventing further combustion of the cable 6.

[0053] One end of the fireproof expansion member 12 is connected to the first compression member 11, and the other end of the fireproof expansion member 12 extends into the cabin connection hole, with at least a portion of the fireproof medium filling the space between the outer wall of the fireproof expansion member 12 and the inner wall of the cabin connection hole. With this arrangement, after a fire occurs in the cable 6, the other end of the fireproof expansion member 12 extends into the cabin connection hole, and at least a portion of the fireproof medium fills the space between the outer wall of the fireproof expansion member 12 and the inner wall of the cabin connection hole. This increases the length of the fireproof expansion member 12 along the extension of the cable 6, and further enhances the flame retardancy of the fireproof medium, further improving the flame retardancy of the cable 6 after a fire.

[0054] Specifically, the cable sealing device provided in this embodiment can be used in large energy storage cabinets. The cable sealing device seals the cables 6 between the multiple compartments within the cabinet 5. Of course, the cable sealing device can also seal the cables 6 extending outward from the cabinet 5. This means that the cable sealing device provided in this embodiment is not limited to use within the interior of the cabinet 5.

[0055] In the specific setting, the first protective component 1 and the second protective component 2 can be set on the top, bottom and vertical surfaces of the chassis 5, where the vertical surface is the side connecting the top and bottom surfaces. The specific installation position depends on the position where the cable 6 passes through, and this embodiment does not make specific limitations.

[0056] Generally, the probability of fire catching is higher for high-power devices. To improve the safety of use, the first protection component 1 is installed on the fire-facing side of the chassis 5. Specifically, the fire-facing side and the high-power devices are located in the same compartment. The second protection component 2 can be installed on the fire-resistant side of the chassis 5, where the fire-resistant side and the low-power devices are located in the same compartment. Figure 5 As shown, the fire-facing surface is located in the first cabin 51 , and the fire-resistant surface is located in the second cabin 52 .

[0057] When a cable sealing device is required, the cable sealing device is connected to the chassis 5 through the first pressing member 11 and the second protective assembly 2. The cable 6 is fixed by the first pressing member 11. Specifically, the first pressing member 11 and the second protective assembly 2 can be respectively installed on opposite sides of the chassis 5 or a spacer component in the chassis 5 through fasteners, or the first pressing member 11 and the second protective assembly 2 can be adhered to the chassis 5. In order to improve the sealing performance, when fasteners are used for connection, a connector that cooperates with the fasteners is welded to the corresponding wall surface of the chassis 5, thereby avoiding the need to drill holes in the chassis 5 to achieve connection.

[0058] When the insulation layer of the cable 6 burns, the fire-proof expansion part 12 expands and fills the gap between the cable 6 and the first compression part 11, thereby preventing the flame from entering another cabin, where the other cabin can be a cabin inside the chassis 5 or a cabin outside the chassis 5, thereby improving the fire-proof performance of the cable 6 passing through the cabin.

[0059] like Figure 4 As shown, in a specific embodiment, in order to facilitate the installation of the first pressing member 11, the first pressing member 11 can be a split structure, and the first pressing member 11 includes a first pressing portion 1101 and a second pressing portion 1102. After the first pressing portion 1101 and the second pressing portion 1102 are connected, they are arranged at the expansion member mounting hole 1103 of the fire-proof expansion member 12. At this time, the ends of the first pressing portion 1101 and the second pressing portion 1102 can be fitted together. Specifically, the shape of the expansion member mounting hole 1103 is determined according to the structure of the fire-proof expansion member 12. Specifically, the first pressing portion 1101 and the second pressing portion 1102 can be the same structure.

[0060] The inner wall of the expansion member mounting hole 1103 is matched with one end of the fireproof expansion member 12. Specifically, the first pressing member 11 and the fireproof expansion member 12 are fitted or bonded.

[0061] In order to further improve the fire prevention effect, in an optional embodiment, the first pressing member 11 is a fire prevention member. For example, the first pressing member 11 is made of a metal member. Specifically, the first pressing member 11 can be a steel plate, an aluminum plate, etc.

[0062] like Figure 5As shown, in a specific embodiment, the second protective component 2 includes a sealing module 22 and a mounting frame 21. The sealing module 22 is sleeved on the outer periphery of the cable 6. Specifically, the cable 6 and the sealing module 22 are sealed in a fitting position. Specifically, the sealing module 22 is a rubber structure. The sealing module 22 is embedded in the mounting frame 21. At this time, the sealing module 22 can be partially or partially located in the inner cavity of the mounting frame 21. The sealing module 22 is an elastic sealing structure. In order to improve the assembly efficiency, in an optional embodiment, the sealing module 22 is an integrally molded structure, or the sealing module 22 is connected to the cable 6 one-to-one, that is, each cable 6 is connected to an independently set sealing module 22.

[0063] In order to improve the connection stability, the mounting frame 21 includes a first frame body 2101 and a second frame body 2102 . The first frame body and the second frame body are detachably connected, and the sealing module 22 is embedded in the first frame body and the second frame body.

[0064] In a specific embodiment, the second protective component 2 further includes a sealing gasket 4, which is sleeved on the outer periphery of the cable 6. Specifically, the cable 6 and the sealing gasket 4 are sealed in a fitting position, and the sealing gasket 4 is located between the second protective component 2 and the cabin connection hole. Specifically, the sealing gasket 4 can be connected to one cable 6, or multiple cables 6 can be sleeved on the same sealing gasket 4. One side of the sealing gasket 4 abuts against the mounting frame 21 and the sealing module 22, and the other side of the sealing gasket 4 is used to abut against the wall of the chassis 5. Here, the wall of the chassis 5 can be the external wall of the chassis 5 or the surface of the partition assembly 8 provided inside the chassis 5, wherein the partition assembly 8 is located inside the chassis 5 to separate the inner cavity of the chassis 5 into a first cabin 51 and a second cabin 52.

[0065] In a specific embodiment, in order to facilitate the installation of the sealing gasket 4, the mounting frame 21 is a split structure, and the mounting frame 21 includes a first frame body 2101 and a second frame body 2102. The first frame body 2101 and the second frame body 2102 are connected and merged. At this time, the mounting frame 21 is a split structure, which is convenient for disassembly and assembly.

[0066] Specifically, the first frame 2101 and the second frame 2102 are connected by fasteners 7. The ends of the first frame 2101 and the second frame 2102 can be arranged in abutment with each other. The first frame 2102 and the second frame 2102 are fireproof components. For example, the first frame 2101 and the second frame 2102 are both made of metal materials. Specifically, the first frame 2101 and the second frame 2102 may be steel plates, aluminum plates, etc. A sealing module mounting surface is formed between the first frame 2101 and the second frame 2102 for mounting the sealing module 22.

[0067] During actual use, the sealing module 22 is replaced with a different sealing module 22 depending on the outer diameter of the cable 6 being passed through. During installation, the threaded sealing module 22 is first embedded in the mounting frame 21. The first frame 2101 and the second frame 2102 are then bolted together to compress the sealing module 22. The threaded second protective assembly 2 is then secured as a whole to the metal plate of the compartment of the chassis 5, with the sealing gasket 4 positioned between the sealing module 22 and the metal plate. The mounting frame 21 is specifically installed in the corresponding position using fasteners and bolts. As the fasteners secure the sealing module 22 in place on the metal plate, the sealing gasket 4 is compressed, thereby achieving a sealed protection.

[0068] In another specific embodiment, the second protective assembly 2 includes a second compression member and a second fire-resistant expansion member that is sleeved around the outer periphery of the cable 6. The outer periphery of the second fire-resistant expansion member is connected to the second compression member. In this case, the first protective assembly 1 and the second protective assembly 2 can have similar structures and are symmetrically arranged on opposite sides of the chassis 5. The fire-resistant expansion structure is provided on opposite sides of the chassis 5, and fire protection is provided on both sides of the cable 6, further improving fire protection performance.

[0069] The cable sealing device provided in this embodiment uses the mounting frame 21 and the sealing module 22 to squeeze the sealing gasket 4 to achieve sealing after the insulation layer of the cable 6 burns, which can effectively prevent the flame from penetrating the cabin and also achieve physical isolation between different cabins. The installation method is simple.

[0070] This embodiment provides a cabinet including a chassis 5 and a cable sealing device. The cable sealing device is mounted on the chassis 5 and is any of the aforementioned cable sealing devices. The specific structure of the cable sealing device has been described above. This embodiment includes the aforementioned cable sealing device and also has the aforementioned technical effects.

[0071] like Figure 6 As shown, the cabinet further includes a partition assembly 8 , which is located inside the chassis 5 to separate the inner cavity of the chassis 5 into a first compartment 51 and a second compartment 52 , and the cable sealing device is installed on the outer shell of the chassis 8 or the partition assembly 8 .

[0072] like Figure 6As shown, in a specific embodiment, the partition assembly 8 includes a first fireproof plate 802, a second fireproof plate 801 and an intermediate connecting plate 803. The first fireproof plate 802 and the second fireproof plate 801 are both provided with through holes. The opposite ends of the intermediate connecting plate 803 are respectively connected to the through holes of the first fireproof plate 802 and the through holes of the second fireproof plate 801. The first fireproof plate 802, the intermediate connecting plate 803 and the second fireproof plate 801 are used as spaces for placing cables. The inner wall 8031 ​​of the intermediate connecting plate and the through holes provided in the first fireproof plate 802 and the second fireproof plate 801 form cabin connection holes. The first fireproof plate 802 and the second fireproof plate 801 are separated and arranged. The first fireproof plate 802 and the second fireproof plate 801 are connected to the opposite sides of the intermediate connecting plate 803. The inner wall 8031 ​​of the intermediate connecting plate forms the wall surface of the fireproof cabin. The distance between the first fireproof plate 802 and the second fireproof plate 801 is determined by the width of the intermediate connecting plate 803.

[0073] In order to improve assembly efficiency, in an optional embodiment, the first fireproof plate 802, the second fireproof plate 801 and the middle connecting plate 803 are formed by bending a single plate.

[0074] like Figure 6 As shown in a specific embodiment, the first clamping member 11 is installed on the first fireproof plate 802, the second protective component 2 is installed on the second fireproof plate 801, and the power of the power device in the cabin where the first fireproof plate 802 in the chassis 5 is located is greater than the power of the power device in the cabin where the second fireproof plate 801 in the chassis 5 is located.

[0075] In an optional embodiment, the power of the power device in the first cabin 51 in the chassis 5 is greater than the power of the power device in the second cabin 52 of the chassis 5. It can be understood that the device with greater power has a greater probability of catching fire, and the first protective component 1 can effectively prevent the flame from spreading to another cabin. The second protective component 2 can seal the cabin connection hole to further prevent the flame from spreading to another cabin, so as to improve the IP level of the energy storage container. Therefore, the first protective component 1 is set in the first cabin 51, and the second protective component 2 is set in the second cabin 52.

[0076] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0077] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cable sealing device, characterized in that: include: A first protective component (1), comprising a first compression member (11) and a fireproof expansion member (12) sleeved on the outer periphery of the cable (6), wherein the fireproof expansion member (12) is connected to the first compression member (11); A second protective component (2), the second protective component (2) is used to seal the cabin connection hole; the first pressing member (11) and the second protective component (2) are respectively located on opposite sides of the cabin connection hole, one is located in the first cabin (51), and the other is located in the second cabin (52).

2. The cable sealing device according to claim 1, characterized in that It also includes a fireproof medium. A fireproof cabin (3) is formed between the first protective component (1), the second protective component (2), the outer wall of the cable (6) and the inner wall of the cabin connection hole, and the fireproof medium is filled in the fireproof cabin.

3. The cable sealing device according to claim 2, characterized in that: One end of the fireproof expansion piece (12) is connected to the first pressing piece (11), and the other end of the fireproof expansion piece (12) extends into the cabin connection hole, and at least part of the fireproof medium is filled between the outer wall of the fireproof expansion piece (12) and the inner wall of the cabin connection hole.

4. The cable sealing device according to claim 1, wherein: The fireproof expansion member (12) comprises a first fireproof expansion portion (1201) and a second fireproof expansion portion (1202); the first fireproof expansion portion (1201) and the second fireproof expansion portion (1202) are connected to form a threading hole for the cable (6) to pass through; Alternatively, the first pressing member (11) includes a first pressing portion (1101) and a second pressing portion (1102), and the first pressing portion (1101) and the second pressing portion (1102) are connected to form an expansion member mounting hole (1103) for mounting the fireproof expansion member (12).

5. The cable sealing device according to claim 4, characterized in that: The inner wall of the expansion member mounting hole (1103) cooperates with one end of the fireproof expansion member (12).

6. The cable sealing device according to any one of claims 1 to 5, characterized in that: The second protection component (2) comprises: A sealing module (22), wherein the sealing module (22) is sleeved on the outer periphery of the cable (6); The mounting frame (21) comprises a first frame body and a second frame body, the first frame body and the second frame body are detachably connected, and the sealing module (22) is embedded in the first frame body and the second frame body.

7. The cable sealing device according to claim 6, characterized in that: It also includes a sealing gasket (4), which is sleeved on the outer periphery of the cable (6) and is located between the second protective component (2) and the cabin connection hole.

8. A cabinet, characterized in that: include: A chassis (5) and a cable sealing device installed on the chassis (5), wherein the cable sealing device is the cable sealing device according to any one of claims 1 to 7.

9. The cabinet according to claim 8, characterized in that: The invention also includes a partition assembly (8), wherein the partition assembly (8) is located in the chassis (5) to separate the inner cavity of the chassis (5) into a first cabin (51) and a second cabin (52), and the cable sealing device is installed on the outer shell of the chassis (5) or the partition assembly (8).

10. The cabinet according to claim 9, characterized in that: The cable sealing device is mounted on the partition assembly (8), and the partition assembly (8) comprises: a first fireproof plate (802), the first fireproof plate (802) being a wall surface of the first cabin (51); A second fireproof plate (801), the second fireproof plate (801) being a wall surface of the second cabin (52); An intermediate connecting plate (803), the first fireproof plate (802) and the second fireproof plate (801) are both provided with through holes, and the opposite ends of the intermediate connecting plate (803) are respectively connected to the through holes of the first fireproof plate (802) and the through holes of the second fireproof plate (801), and the first fireproof plate (802), the intermediate connecting plate (803) and the second fireproof plate (801) form an installation space for installing the cable sealing device.

11. The cabinet according to claim 10, characterized in that: The first pressing member (11) is installed on the first fireproof plate (802), and the second protective component (2) is installed on the second fireproof plate (801), wherein the power of the power device in the first cabin (51) in the chassis (5) is greater than the power of the power device in the second cabin (52) in the chassis (5).

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