Cable hole sealing device and transformer box

Abstract

This utility model relates to the technical field of sealing devices, and discloses a cable hole sealing device and a transformer box. The cable hole sealing device includes a body and a filler. The body is a flexible strip structure with a cavity inside. The body has a filling port and a groove along its length, which is suitable for engaging with the cable hole. The filler is filled into the body. This utility model bends the flexible strip structure of the body into a shape that matches the cable hole and installs it in the cable hole of the transformer box. When the filler is filled into the body, the body expands to completely seal the cable hole, effectively preventing small animals from entering the transformer box, reducing the risk of the wiring inside the transformer box being chewed by small animals, and improving the reliability of fireproof sealing. The groove engages with the edge of the cable hole to prevent the body from moving or shifting. It has the advantages of simple structure and convenient disassembly and assembly.

Description

Technical Field

[0001] This utility model relates to the field of sealing device technology, specifically to a cable hole sealing device and a transformer box. Background Technology

[0002] A photovoltaic power station is a photovoltaic power generation system that utilizes solar energy, employs electronic components such as crystalline silicon panels and inverters, and is connected to the power grid to transmit electricity to the grid.

[0003] In existing technology, the bottom of the transformer box in a photovoltaic power station has cable holes for threading incoming and outgoing cables into the transformer box. Because photovoltaic power plant areas are vast and covered in vegetation, and have many small animals, rats, bees, and other small animals often enter the transformer box through poorly sealed cable holes at the bottom, causing some adverse effects on the operation of the transformer box. Utility Model Content

[0004] In view of this, the present invention provides a cable hole sealing device and a transformer box to solve the problem in the prior art that small animals often enter the cable holes at the bottom of the transformer box, thereby affecting the normal operation of the transformer box.

[0005] In the first aspect, this utility model provides a cable hole sealing device, including a body and a filler. The body is a flexible strip structure with a cavity inside. The body is provided with a filling port and a groove along its length. The groove is suitable for engaging with the cable hole. The filler is filled into the body.

[0006] Beneficial effects: This utility model bends the flexible strip structure into a shape that matches the cable hole and installs it in the cable hole of the transformer box. When the filler is filled into the body, the body expands to completely seal the cable hole, effectively preventing small animals from entering the transformer box, reducing the risk of the circuits inside the transformer box being chewed by small animals, and also improving the reliability of fireproof sealing. The groove is engaged with the edge of the cable hole to prevent the body from moving or shifting. It has the advantages of simple structure and convenient disassembly and assembly.

[0007] In one alternative implementation, a plug is provided on the filling port.

[0008] Beneficial effects: After the filler is filled into the body, the present invention provides a plug on the filling port to prevent the filler from overflowing.

[0009] In one alternative embodiment, an anti-slip layer is provided on the side of the body away from the groove.

[0010] Beneficial effects: The anti-slip layer of this utility model comes into contact with the cable, which can improve the stability of the connection between the body and the cable.

[0011] In one alternative embodiment, the body includes a fire-resistant layer and an inner lining layer, with the fire-resistant layer located outside the inner lining layer.

[0012] Beneficial effect: In this embodiment, the fireproof layer on the outside of the main body can improve the fire resistance of the main body.

[0013] In one alternative implementation, adhesive pieces are provided at both ends of the body.

[0014] Beneficial effects: After the main body is bent into a shape that matches the cable hole, the adhesive pieces at both ends of the main body can firmly connect the two ends of the main body, thereby maintaining the shape that matches the cable hole.

[0015] In one alternative embodiment, the body is rectangular and the filling port is located on the side wall of the body adjacent to the groove.

[0016] Beneficial effects: This utility model sets the filling port on the side wall adjacent to the groove on the main body, which makes it easy to inject the filling material into the main body after the main body is installed in the cable hole.

[0017] In one alternative implementation, the groove is located in the middle of the body sidewall.

[0018] Beneficial effects: This utility model places the groove in the middle of the side wall of the main body. When the filler is filled into the main body, the extrusion force on both sides of the groove is the same, thereby ensuring the stability of the main body when installed at the cable hole.

[0019] In one alternative embodiment, the body is provided with a connector, and the filling port is located at the end of the connector away from the body.

[0020] Beneficial effects: The present invention has a connecting pipe on the main body to facilitate the injection of filler into the main body.

[0021] In one alternative embodiment, the fireproof layer is made of fiberglass cloth or ceramic fiber cloth, and the inner lining layer is made of silicone rubber.

[0022] Secondly, this utility model also provides a transformer box, including a box body, components, cables and the aforementioned cable hole sealing device. The box body is hollow inside, and a cable hole is provided at the bottom of the box body. The components are placed inside the box body, and the cable passes through the cable hole from the outside and connects to the components. The main body is installed in the cable hole, and the groove is engaged with the cable hole.

[0023] Since the transformer box adopts the cable hole sealing device of this utility model, it has the same beneficial effect as the cable hole sealing device, which will not be described in detail here. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of a cable hole sealing device according to an embodiment of the present utility model;

[0026] Figure 2 This is a side sectional view of a transformer box according to an embodiment of the present utility model;

[0027] Figure 3 This is a bottom view of a transformer box according to an embodiment of the present utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Body; 2. Filling port; 3. Groove; 4. Connector; 5. Housing; 6. Components; 7. Cable. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] The following is combined with Figures 1 to 3 The following describes embodiments of the present invention.

[0032] According to embodiments of the present invention, on the one hand, such as Figures 1 to 3 As shown, a cable hole sealing device is provided, including a body 1 and a filler. The body 1 is a flexible strip structure with a cavity inside. The body 1 is provided with a filling port 2 and a groove 3 along its length. The groove 3 is suitable for engaging with the cable hole. The filler is filled inside the body 1.

[0033] Specifically, in this embodiment, the body 1 has a long strip structure and is made of flexible material. Its interior is a cavity. The body 1 can be bent into a shape that matches the cable hole on the transformer box. In this embodiment, the cable hole is not specifically limited. For example, in this embodiment, when the cable hole is a circular hole, when installing the cable hole sealing device, the body 1 is first bent into a ring. The inner side of the ring abuts against the cable 7. The groove 3 is located on the outer side of the ring and is engaged with the edge of the cable hole. Then, the filler is filled into the body 1 through the filling port 2.

[0034] In this embodiment, the filler is not specifically limited. For example, in this embodiment, the filler is silicone sealant. The silicone sealant is in a fluid state in a closed container and will begin to solidify after contact with air, so that the paste-like sealant gradually transforms into an elastic solid within the body 1.

[0035] In some other embodiments, the filler may also be a gas, such as air, nitrogen, etc.

[0036] This utility model bends the flexible strip-shaped body 1 into a shape that matches the cable hole and installs it in the cable hole of the transformer box. When the filler is filled into the body 1, the body 1 expands to completely seal the cable hole, effectively preventing small animals from entering the transformer box, reducing the risk of the circuits inside the transformer box being chewed by small animals, and also improving the reliability of fireproof sealing. The groove 3 is engaged with the edge of the cable hole to prevent the body 1 from moving or shifting. It has the advantages of simple structure and convenient disassembly and assembly.

[0037] In one embodiment, the filling port 2 is provided with a plug.

[0038] Specifically, in this embodiment, the plug is not specifically limited. For example, the plug can be a rubber stopper. After the filler is filled into the body 1, the plug is installed on the filling port 2 to prevent the filler from flowing out of the filling hole before it solidifies.

[0039] After the filler is filled into the body 1, the present invention provides a plug on the filling port 2 to prevent the filler from overflowing, thus ensuring the sealing of the body 1 to the cable hole.

[0040] In one embodiment, the side of the body 1 away from the groove 3 is provided with an anti-slip layer.

[0041] Specifically, in this embodiment, when the body 1 is bent into a shape that matches the cable hole, the anti-slip layer is located on the side that abuts against the cable 7.

[0042] In this embodiment, the protective layer is not specifically limited. For example, in this embodiment, the protective layer is made of rubber pads such as nitrile rubber and neoprene rubber. The rubber pads are in contact with the outer wall of the cable 7, which can increase the anti-slip performance between the body 1 and the cable 7 and reduce the displacement between the body 1 and the cable 7.

[0043] The anti-slip layer of this utility model comes into contact with the cable 7, which can improve the stability of the connection between the body 1 and the cable 7.

[0044] In one embodiment, the body 1 includes a fireproof layer and an inner lining layer, with the fireproof layer located outside the inner lining layer.

[0045] Specifically, in this embodiment, the body 1 has a double-layer structure, with an inner lining layer and an outer fireproof layer, and the filler is filled in the inner lining layer.

[0046] In this embodiment, the fireproof layer on the outside of the main body 1 can improve the fireproof performance of the main body 1.

[0047] In one embodiment, adhesive pieces are provided at both ends of the body 1.

[0048] Specifically, this embodiment does not impose specific limitations on the adhesive component. For example, in this embodiment, the adhesive component can be double-sided tape, which can connect the two ends of the body 1 after bending the body 1 to form a ring structure. In some other embodiments, the adhesive component can also be Velcro, etc.

[0049] After the main body 1 is bent into a shape that matches the cable hole, the adhesive pieces at both ends of the main body 1 can firmly connect the two ends of the main body 1, thereby maintaining the shape that matches the cable hole.

[0050] In one embodiment, such as Figure 1 and Figure 2 As shown, the body 1 is rectangular, and the filling port 2 is located on the side wall of the body 1 adjacent to the groove 3.

[0051] Specifically, in this embodiment, the body 1 is a cuboid structure with a square cross-section, the groove 3 is disposed on the side of the cuboid, and the filling port 2 is disposed on the side adjacent to the groove 3.

[0052] In this invention, the filling port 2 is located on the side wall of the body 1 adjacent to the groove 3. After the body 1 is installed in the cable hole, it is convenient to inject the filler into the body 1.

[0053] In one embodiment, such as Figure 1 and Figure 2 As shown, the groove 3 is located in the middle of the side wall of the body 1.

[0054] Specifically, in this embodiment, the groove 3 is located in the middle of the side wall of the cuboid body 1. When the body 1 is installed in the cable hole, the upper and lower sides of the groove 3 are symmetrical.

[0055] In this invention, the groove 3 is located in the middle of the side wall of the body 1. When the filler is filled into the body 1, the squeezing force on both sides of the groove 3 is the same, thereby ensuring the stability of the body 1 when installed at the cable hole.

[0056] In one embodiment, such as Figure 1 As shown, the main body 1 is provided with a connecting pipe 4, and the filling port 2 is located at the end of the connecting pipe 4 away from the main body 1.

[0057] Specifically, in this embodiment, the connector 4 and the body 1 are an integral structure. The connector 4 protrudes from the outside of the body 1. The opening at the end of the connector 4 away from the body 1 is the filling port 2. After the filler is filled into the body 1 through the connector 4, a plug can be installed at the opening or the connector 4 can be tied to ensure the sealing of the opening of the connector 4.

[0058] This utility model has a connecting pipe 4 on the main body 1 to facilitate the injection of filler into the main body 1.

[0059] In one embodiment, the fireproof layer is made of fiberglass cloth or ceramic fiber cloth, and the inner lining layer is made of silicone rubber.

[0060] According to an embodiment of the present invention, on the other hand, as... Figure 2 and Figure 3 As shown, a transformer box is also provided, including a box body 5, components 6, cables 7 and the aforementioned cable hole sealing device. The box body 5 has an internal cavity, and a cable hole is provided at the bottom of the box body 5. The components 6 are installed inside the box body 5, and the cables 7 pass through the cable hole from the outside and are connected to the components 6. The body 1 is installed in the cable hole, and the groove 3 is engaged with the cable hole.

[0061] Specifically, in this embodiment, the interior of the box 5 is a cavity, a cabinet door is provided on one side of the box 5, components 6 are provided inside the box 5, and a cable hole is provided at the bottom of the box 5. The cable 7 passes through the cable hole from the outside and is connected to the components 6. The other end of the cable 7 is connected to the photovoltaic equipment. The body 1 is bent into a ring and installed in the cable hole. The groove 3 is engaged with the edge of the cable hole, and the filler is filled inside the body 1.

[0062] This invention bends the flexible strip-shaped body 1 into a shape that matches the cable hole and installs it in the cable hole of the transformer box. When the filler is filled into the body 1, the body 1 expands to completely seal the cable hole, effectively preventing small animals from entering the transformer box, reducing the risk of the circuits inside the transformer box being chewed by small animals, and also improving the reliability of fireproof sealing. It also prevents flames from entering the transformer box through the cable hole, ensuring the reliability of the transformer box operation.

[0063] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A cable hole sealing device, characterized in that, include: The body (1) is a flexible strip structure with a cavity inside. The body (1) is provided with a filling port (2) and a groove (3) is provided along the length direction. The groove (3) is suitable for engaging with a cable hole. A filler is provided inside the body (1).

2. The cable hole sealing device according to claim 1, characterized in that, The filling port (2) is provided with a plug.

3. The cable hole sealing device according to claim 1, characterized in that, The body (1) has an anti-slip layer on the side away from the groove (3).

4. The cable hole sealing device according to claim 1, characterized in that, The body (1) includes a fireproof layer and an inner lining layer, with the fireproof layer located outside the inner lining layer.

5. The cable hole sealing device according to claim 1, characterized in that, The main body (1) has adhesive pieces at both ends.

6. The cable hole sealing device according to claim 1, characterized in that, The body (1) is rectangular, and the filling port (2) is located on the side wall of the body (1) adjacent to the groove (3).

7. The cable hole sealing device according to claim 6, characterized in that, The groove (3) is located in the middle of the side wall of the body (1).

8. The cable hole sealing device according to claim 1, characterized in that, The main body (1) is provided with a connecting pipe (4), and the filling port (2) is located at the end of the connecting pipe (4) away from the main body (1).

9. The cable hole sealing device according to claim 4, characterized in that, The fireproof layer is made of fiberglass cloth or ceramic fiber cloth, and the inner lining layer is made of silicone rubber.

10. A transformer box, characterized in that, include: The box (5) has an internal cavity and a cable hole at the bottom. Component (6), wherein the component (6) is disposed inside the housing (5); Cable (7), which is externally connected to component (6) through the cable hole; The cable hole sealing device according to any one of claims 1 to 9, wherein the body (1) is installed in the cable hole and the groove (3) is engaged with the cable hole.

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