Box-type transformer substation low-voltage side cable hoop structure and box-type transformer substation

Abstract

The embodiment of the utility model provides a box-type transformer substation low-voltage side cable hoop structure and a box-type transformer substation, and relates to the field of box-type transformer substations. The objective of the utility model is to improve the problem that a cable installation space cannot be satisfied under the condition that a box-type transformer substation low-voltage side cable hoop installation scheme is compact. The box transformer substation low-voltage side cable hoop structure comprises a box body and a plurality of cable hoops, the box body is provided with a bottom sealing plate corresponding to the bottom of a low-voltage cabinet, and the bottom sealing plate is provided with a plurality of cable extending holes; the plurality of cable hoops are fixed on the bottom sealing plate at intervals, and the plurality of cable hoops are in one-to-one correspondence with the positions of the plurality of cable stretching holes. The box-type substation comprises the cable hoop structure on the low-voltage side of the box-type substation. The cable hoop in the low-voltage cabinet is fixed on the bottom sealing plate below the low-voltage cabinet in a sinking manner, so that the height difference between the cable hoop and a copper plate of a circuit breaker in the low-voltage cabinet is maximized, the cable operation space is increased, and the height requirement under the condition of compact installation can be met.

Description

Technical Field

[0001] The utility model relates to the field of box-type substations, and in particular to a cable clamp structure on a low-voltage side of a box-type substation and a box-type substation. Background Art

[0002] The box-type substation is a factory-prefabricated indoor and outdoor compact distribution equipment that integrates high-voltage switchgear, distribution transformers and low-voltage distribution devices according to a certain wiring scheme. It organically combines the functions of transformer step-down and low-voltage distribution, and is installed in a moisture-proof, rust-proof, dust-proof, rodent-proof, fire-proof, anti-theft, heat-insulating, fully enclosed, movable steel structure box. It is particularly suitable for urban network construction and transformation, and is a new type of substation that has emerged after the civil substation.

[0003] The existing cable clamp installation structure of the low-voltage cabinet of the box-type transformer cannot meet the user's cable installation thickness of more than 400mm under the condition of compact solution. Utility Model Content

[0004] The purpose of the utility model includes, for example, providing a cable clamp structure on the low-voltage side of a box-type transformer and a box-type substation, which can improve the problem that the cable clamp on the low-voltage side of the box-type transformer cannot meet the cable installation space when the installation scheme is compact.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] An embodiment of the utility model provides a cable clamp structure on the low-voltage side of a box-type transformer, comprising a box body and a plurality of cable clamps, wherein the box body has a bottom sealing plate corresponding to the bottom of the low-voltage cabinet, and the bottom sealing plate is provided with a plurality of cable entry holes; the plurality of cable clamps are fixed on the bottom sealing plate at intervals, and the plurality of cable clamps correspond one-to-one to the positions of the plurality of cable entry holes.

[0007] In addition, the cable clamp structure on the low-voltage side of the box-type transformer provided by the embodiment of the utility model may also have the following additional technical features:

[0008] Optionally, the cable clamp structure on the low-voltage side of the box-type transformer further includes a clamp crossbeam, the clamp crossbeam is fitted and fixed on the bottom sealing plate, and a plurality of cable clamps are fixed on the clamp crossbeam at intervals.

[0009] Optionally, the clamp beam includes a first plate rib and a second plate rib fixed at an angle to each other; the first plate rib is fitted and fixed to the bottom sealing plate, and a plurality of cable clamps are fixed at intervals on one side of the second plate rib along the length direction of the second plate rib.

[0010] Optionally, the cable clamp structure on the low-voltage side of the box-type transformer further includes a plurality of fixing bolts; the first plate rib and the bottom sealing plate are fixed by the plurality of fixing bolts.

[0011] Optionally, the cable clamp structure on the low-voltage side of the box-type transformer also includes a plurality of fixing nuts; the bottom sealing plate is provided with a plurality of fixing holes, and the plurality of fixing nuts are fixed one-to-one with the plurality of fixing holes; the first plate rib is provided with a plurality of connecting holes, and the plurality of connecting holes correspond one-to-one with the positions of the plurality of fixing holes; each of the fixing bolts passes through the connecting hole and is threadedly fixed to the fixing nut corresponding to the position, so as to fix the clamp beam to the bottom sealing plate.

[0012] Optionally, the connecting hole is a waist-shaped hole; the waist length of the waist-shaped hole extends along the width direction of the second plate rib.

[0013] Optionally, the fixing nut is fixed to the bottom of the bottom sealing plate corresponding to the fixing hole.

[0014] Optionally, the cable clamp includes a plurality of hoop plates and a plurality of wing plates, any two of the hoop plates are connected by the wing plates, and the wing plates are provided with fastening holes; the second plate rib is provided with a plurality of elongated installation holes, and the plurality of elongated installation holes are arranged at intervals along the length direction of the second plate rib; the cable clamp structure on the low-voltage side of the box-type transformer also includes a plurality of fasteners; each of the fasteners connects and fixes the fastening hole and the elongated installation hole to fix the cable clamp to the second plate rib.

[0015] An embodiment of the utility model also provides a box-type substation, which includes a low-voltage cabinet and a cable clamp structure on the low-voltage side of the box-type substation; the low-voltage cabinet is fixed in the box body, and the bottom sealing plate corresponds to the bottom of the low-voltage cabinet.

[0016] Optionally, a circuit breaker copper plate is provided in the low-voltage cabinet, and a height difference between the circuit breaker copper plate and the cable clamp is greater than 400 mm.

[0017] The beneficial effects of the cable clamp structure on the low-voltage side of the box-type transformer and the box-type transformer substation of the embodiment of the utility model include, for example:

[0018] The cable clamp structure on the low-voltage side of the box-type transformer comprises a box body and a plurality of cable clamps. The box body has a bottom sealing plate corresponding to the bottom of the low-voltage cabinet, and the bottom sealing plate is provided with a plurality of cable entry holes; the plurality of cable clamps are fixed on the bottom sealing plate at intervals, and the plurality of cable clamps correspond to the positions of the plurality of cable entry holes one by one.

[0019] By sinking the cable clamp in the low-voltage cabinet and fixing it on the bottom sealing plate below the low-voltage cabinet, the height difference between the cable clamp and the copper plate of the circuit breaker in the low-voltage cabinet is maximized, the cable operation space is increased, and the height requirements in compact installation can be met.

[0020] The box-type substation includes the above-mentioned cable clamp structure on the low-voltage side of the box-type substation, which can improve the problem that the cable clamp on the low-voltage side of the box-type substation cannot meet the cable installation space when the installation scheme is compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic structural diagram of a box-type substation from a first perspective provided in this embodiment;

[0023] Figure 2 A structural schematic diagram of a box-type substation from a second perspective provided in this embodiment;

[0024] Figure 3 for Figure 1 An enlarged view of a first portion of a box-type substation is shown;

[0025] Figure 4 for Figure 1 An enlarged view of the second portion of the box-type substation is shown;

[0026] Figure 5 for Figure 2 An enlarged view of the first part of the box-type substation is shown.

[0027] Icons: 10-box-type substation; 11-low-voltage cabinet; 12-circuit breaker copper plate; 100-box; 110-bottom sealing plate; 120-cable entry hole; 130-fixing hole; 200-cable clamp; 210-hoop plate; 220-wing plate; 230-fastening hole; 300-clamp beam; 310-first plate rib; 311-connecting hole; 320-second plate rib; 321-installation elongated hole; 400-fixing nut. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0031] In the description of the present utility model, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present utility model.

[0032] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0033] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0034] Combine the following Figures 1 to 5 The cable clamp structure on the low-voltage side of the box-type transformer provided in this embodiment is described in detail.

[0035] Please refer to Figure 1 , Figure 3 and Figure 4 An embodiment of the utility model provides a cable clamp structure on the low-voltage side of a box-type transformer, comprising a box body 100 and a plurality of cable clamps 200. The box body 100 has a bottom sealing plate 110 corresponding to the bottom of a low-voltage cabinet 11, and the bottom sealing plate 110 is provided with a plurality of cable insertion holes 120; the plurality of cable clamps 200 are fixed on the bottom sealing plate 110 at intervals, and the plurality of cable clamps 200 correspond to the positions of the plurality of cable insertion holes 120 one by one.

[0036] The bottom sealing plate 110 is sealed and fixed under the low-voltage cabinet 11. The cable is inserted from the cable insertion hole 120, passes through the clamp, and is connected to the circuit breaker copper plate 12 in the low-voltage cabinet 11. The cable clamp 200 is directly fixed on the bottom sealing plate 110 to maximize the distance between the cable clamp 200 and the circuit breaker copper plate 12, which can increase the cable operation space and meet the user's cable installation thickness>400mm under the condition of compact installation requirements.

[0037] Reference Figure 1 , Figure 3 and Figure 4 In this embodiment, the cable clamp structure on the low-voltage side of the box-type transformer further includes a clamp beam 300 , which is fixed on the bottom sealing plate 110 , and a plurality of cable clamps 200 are fixed on the clamp beam 300 at intervals.

[0038] The cable clamp 200 is fixed on the bottom sealing plate 110 through the clamp beam 300. The height range of the clamp beam 300 is 100mm-160mm. The cable clamp 200 is fixed on the clamp beam 300. The height difference between the clamp beam 300 and the circuit breaker copper plate 12 can be guaranteed to be greater than 400mm, meeting the user's cable installation thickness requirements.

[0039] Reference Figure 1 , Figure 3 and Figure 4 In this embodiment, the clamp beam 300 includes a first plate rib 310 and a second plate rib 320 fixed at an angle to each other; the first plate rib 310 is fitted and fixed to the bottom sealing plate 110, and a plurality of cable clamps 200 are fixed at intervals on one side of the second plate rib 320 along the length direction of the second plate rib 320.

[0040] Specifically, the first plate rib 310 and the second plate rib 320 are integrally formed. The first plate rib 310 and the second plate rib 320 are in an "L"-shaped structure. The first plate rib 310 is in the horizontal direction, and the first plate rib 310 is fixed to the bottom sealing plate 110; the second plate rib 320 is in the vertical direction, and the cable clamp 200 is fixed to the side of the second plate rib 320. The height range of the second plate rib 320 is 100mm-160mm.

[0041] Reference Figure 1 , Figure 3 and Figure 4 In this embodiment, the cable clamp structure on the low-voltage side of the box transformer further includes a plurality of fixing bolts; the first plate rib 310 is fixed to the bottom sealing plate 110 by a plurality of fixing bolts. The clamp crossbeam 300 is detachably fixed to the bottom sealing plate 110 by fixing bolts, which is easy to operate and firmly fixed.

[0042] Reference Figure 2 , Figure 4 and Figure 5In this embodiment, the cable clamp structure on the low-voltage side of the box-type transformer further includes a plurality of fixing nuts 400; the bottom sealing plate 110 is provided with a plurality of fixing holes 130, and the plurality of fixing nuts 400 are fixed one-to-one with the plurality of fixing holes 130; the first plate rib 310 is provided with a plurality of connecting holes 311, and the plurality of connecting holes 311 are positioned one-to-one with the plurality of fixing holes 130; each fixing bolt passes through the connecting hole 311 and is threadedly fixed with the fixing nut 400 corresponding to the position, so as to fix the clamp beam 300 to the bottom sealing plate 110.

[0043] The fixing bolt passes through the connection hole 311 and the fixing hole 130, and is threadedly connected with the fixing bolt to fix the first plate rib 310 and the bottom sealing plate 110. The fixing bolt and the fixing nut 400 are threadedly connected and fixed, which has a simple structure and fast assembly.

[0044] Reference Figure 2 , Figure 4 and Figure 5 In this embodiment, the connecting hole 311 is a waist-shaped hole; the waist length of the waist-shaped hole extends along the width direction of the second plate rib 320. The waist-shaped hole can also adjust the corresponding position with the fixing hole 130, and the fixing position of the second plate rib 320 and the bottom sealing plate 110 can be adjusted along the length direction of the waist-shaped hole. The waist-shaped hole has the function of guiding and limiting, and the installation position is more flexible.

[0045] Reference Figure 2 , Figure 4 and Figure 5 In this embodiment, the fixing nut 400 is fixed to the bottom of the bottom sealing plate 110 corresponding to the fixing hole 130. The fixing nut 400 is coaxially welded to the bottom of the fixing hole 130, which facilitates the welding of the fixing bolt and the bottom sealing plate 110, and also enables the assembly of the fixing bolt and the fixing nut 400 to be checked.

[0046] Reference Figure 2 , Figure 4 and Figure 5 In this embodiment, the cable clamp 200 includes a plurality of hoops 210 and a plurality of wing plates 220. Any two hoops 210 are connected by the wing plates 220. The wing plates 220 are provided with fastening holes 230. The second plate rib 320 is provided with a plurality of elongated installation holes 321. The plurality of elongated installation holes 321 are arranged at intervals along the length direction of the second plate rib 320. The cable clamp structure on the low-voltage side of the box-type transformer also includes a plurality of fasteners. Each fastener connects and fixes the fastening hole 230 with the elongated installation hole 321 to fix the cable clamp 200 to the second plate rib 320.

[0047] A plurality of hoop plates 210 and a plurality of wing plates 220 are sequentially arranged at intervals and connected and fixed. One wing plate 220 is fixed between two adjacent hoop plates 210. Specifically, the hoop plates 210 are in a "V" shape, and after the hoop plates 210 and the second plate ribs 320 are fixed, they are used to fix the cables.

[0048] The fastening holes 230 on the wing plate 220 correspond to the installation elongated holes 321 on the second plate rib 320 and are fixed by fasteners. The cable clamp 200 can be adjusted and fixed along the length direction of the second plate rib 320 within the range of the elongated holes.

[0049] The embodiment of the utility model further provides a box-type substation 10, which includes a low-voltage cabinet 11 and a cable clamp structure on the low-voltage side of the box-type substation; the low-voltage cabinet 11 is fixed in the box body 100, and the bottom sealing plate 110 corresponds to the bottom of the low-voltage cabinet 11.

[0050] In this embodiment, a circuit breaker copper plate 12 is provided in the low voltage cabinet 11, and the height difference between the circuit breaker copper plate 12 and the cable clamp 200 is greater than 400 mm. Specifically, the height difference between the circuit breaker copper plate 12 and the cable clamp 200 is 445 mm.

[0051] The cable clamp structure on the low-voltage side of the box-type transformer provided in this embodiment has at least the following advantages: by sinking and fixing the cable clamp 200 in the low-voltage cabinet 11 on the bottom sealing plate 110 below the low-voltage cabinet 11, the height difference between the cable clamp 200 and the circuit breaker copper plate 12 in the low-voltage cabinet 11 is maximized, thereby increasing the cable operation space and meeting the height requirements under compact installation conditions.

[0052] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A cable clamp structure on the low-voltage side of a box-type transformer, characterized in that: The invention comprises a box body (100) and a plurality of cable clamps (200), wherein the box body (100) has a bottom sealing plate (110) corresponding to the bottom of a low-voltage cabinet (11), and the bottom sealing plate (110) is provided with a plurality of cable insertion holes (120); the plurality of cable clamps (200) are fixed on the bottom sealing plate (110) at intervals, and the positions of the plurality of cable clamps (200) and the plurality of cable insertion holes (120) correspond one to one.

2. The cable clamp structure on the low-voltage side of the box-type transformer according to claim 1 is characterized in that: The cable clamp structure on the low-voltage side of the box-type transformer further comprises a clamp crossbeam (300), wherein the clamp crossbeam (300) is fixedly attached to the bottom sealing plate (110), and a plurality of the cable clamps (200) are fixedly spaced apart on the clamp crossbeam (300).

3. The cable clamp structure on the low-voltage side of the box-type transformer according to claim 2 is characterized in that: The clamp crossbeam (300) comprises a first plate rib (310) and a second plate rib (320) fixed at an angle to each other; the first plate rib (310) is fitted and fixed to the bottom sealing plate (110), and a plurality of cable clamps (200) are fixed to one side of the second plate rib (320) at intervals along the length direction of the second plate rib (320).

4. The cable clamp structure on the low-voltage side of the box-type transformer according to claim 3 is characterized in that: The cable clamp structure on the low-voltage side of the box-type transformer also includes a plurality of fixing bolts; the first plate rib (310) and the bottom sealing plate (110) are fixed by means of the plurality of fixing bolts.

5. The cable clamp structure on the low-voltage side of the box-type transformer according to claim 4 is characterized in that: The cable clamp structure on the low-voltage side of the box-type transformer also includes a plurality of fixing nuts (400); the bottom sealing plate (110) is provided with a plurality of fixing holes (130), and the plurality of fixing nuts (400) are fixed in a one-to-one correspondence with the plurality of fixing holes (130); the first plate rib (310) is provided with a plurality of connecting holes (311), and the positions of the plurality of connecting holes (311) and the plurality of fixing holes (130) are in a one-to-one correspondence; each of the fixing bolts passes through the connecting hole (311) and is threadedly fixed to the fixing nut (400) at the corresponding position, so as to fix the clamp beam (300) to the bottom sealing plate (110).

6. The cable clamp structure on the low-voltage side of the box-type transformer according to claim 5 is characterized in that: The connecting hole (311) is a waist-shaped hole; the waist length of the waist-shaped hole extends along the width direction of the second plate rib (320).

7. The cable clamp structure on the low-voltage side of the box-type transformer according to claim 5 is characterized in that: The fixing nut (400) is fixed to the bottom of the bottom sealing plate (110) corresponding to the fixing hole (130).

8. The cable clamp structure at the low-voltage side of the box-type transformer according to any one of claims 3 to 7, characterized in that: The cable clamp (200) comprises a plurality of hoop plates (210) and a plurality of wing plates (220), any two of the hoop plates (210) are connected via the wing plates (220), and the wing plates (220) are provided with fastening holes (230); the second plate rib (320) is provided with a plurality of long mounting holes (321), and the plurality of long mounting holes (321) are arranged at intervals along the length direction of the second plate rib (320); The cable clamp structure on the low-voltage side of the box-type transformer further comprises a plurality of fasteners; each of the fasteners connects and fixes the fastening hole (230) and the installation elongated hole (321) to fix the cable clamp (200) to the second plate rib (320).

9. A box-type substation, characterized in that: The box-type substation comprises a low-voltage cabinet (11) and a cable clamp structure on the low-voltage side of the box-type substation as described in any one of claims 1 to 8; the low-voltage cabinet (11) is fixed in the box body (100), and the bottom sealing plate (110) corresponds to the bottom of the low-voltage cabinet (11).

10. The box-type substation according to claim 9, characterized in that: The low-voltage cabinet (11) has a circuit breaker copper plate (12) in it, and the height difference between the circuit breaker copper plate (12) and the cable clamp (200) is greater than 400 mm.

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