Air bus box and transformer

Abstract

The utility model belongs to the technical field of electrical equipment, and discloses an air bus box and a transformer. The air bus box comprises a box body, the box body comprises a main box body, the rear portion of the main box body is connected with an oil tank of a transformer, a side-out sleeve of the transformer penetrates through the rear portion of the main box body and is connected with a copper bar located in a containing space, a cable penetrates through the bottom of the main box body, bent side plates are oppositely arranged on the two sides of the main box body, and the bent side plates are in a diagonal bending shape. The rear portion of the main box body is connected with the oil tank, and the cable penetrates through the bottom of the main box body, so that the transformer side outlet sleeve can be inserted into the main box body from the rear portion, the copper bar can be connected into the box body, and the cable can penetrate through the bottom of the main box body and the box body to protect the cable and the copper bar. By arranging the bent side plates which are bent diagonally on the two sides, the rigidity and strength of the bent side plates and the box body are increased, bending stress can be better dispersed and resisted, deformation and even damage of the box body are reduced, and the situation that the electrical insulation distance of the copper bars is insufficient due to deformation of the box wall is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrical equipment technical field especially relates to an air bus box and transformer. BACKGROUND

[0002] The transformer is the device that utilizes electromagnetic induction's principle to change alternating voltage, is used in electrical equipment and wireless circuit, is commonly used as ascending voltage, matching impedance, safety isolation etc.

[0003] The traditional air bus box sets the bus cover in the box body, and plays the role of protecting the bus, and the box wall is all flat, and the box wall is easy to bend and deform under the action of gravity or external environment, and further lead to the insufficient electrical insulation distance of the internal copper bar to the box wall.

[0004] That is, the flat box wall of the existing air bus box, the box wall is easy to bend and deform, and further lead to the insufficient electrical insulation distance of the internal copper bar to the box wall. UTILITY MODEL CONTENT

[0005] The utility model discloses a kind of air bus box and transformer, to enhance the strength and anti-bending ability of box body, avoid the insufficient electrical insulation distance of internal copper bar to box wall due to box wall bending deformation.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a kind of air bus box, the air bus box includes the box body with containing space inside, the box body includes main box body, the rear part of the main box body is used to be connected with the oil tank of transformer, the side out bushing of the transformer passes through the rear part of the main box body and is connected with the copper bar in the containing space, the main box body bottom is used for cable to set, the two sides of the main box body are oppositely provided with bending side plate, the bending side plate is diagonal bent shape.

[0008] As an optional technical scheme of a kind of air bus box, two the bending side plate are respectively provided with ventilation structure, and the ventilation structure on two the bending side plate is diagonally arranged, the ventilation structure has the air duct that the containing space and external environment are communicated.

[0009] As an optional technical scheme of a kind of air bus box, the top inner side of the main box body is also provided with mounting bracket, and the mounting bracket is used to hoist and fix insulator.

[0010] As an optional technical scheme of the air bus box, the rear part of the main box body is provided with a mounting structure, a flange is arranged on the mounting structure, the mounting structure is connected with the oil tank through the flange, and the side outlet sleeve extends into the containing space from the mounting port of the mounting structure.

[0011] As an optional technical scheme of the air bus box, the mounting port of the mounting structure is provided with a first side cover plate, and the first side cover plate is detachably connected with the mounting structure.

[0012] As an optional technical scheme of the air bus box, a first guard rail is arranged on the mounting structure, and the first guard rail is used for shielding the connecting position of the flange and the oil tank.

[0013] As an optional technical scheme of the air bus box, the first guard rail is arranged on the flange of the mounting structure and located at the top of the flange.

[0014] As an optional technical scheme of the air bus box, the side opposite to the mounting structure of the main box body is provided with an opening, a second side cover plate is arranged at the opening of the main box body, the second side cover plate is connected with the main box body and closes the opening, and an observation window is arranged on the second side cover plate.

[0015] As an optional technical scheme of the air bus box, a first reinforcing rib is arranged outside the second side cover plate, and / or a second reinforcing rib is arranged outside the top of the main box body.

[0016] As an optional technical scheme of the air bus box, a support is further arranged, one end of the support is connected with the bottom of the main box body, and the other end of the support is used for connecting with the oil tank.

[0017] The utility model provides a kind of transformer, and the transformer includes oil tank, side outlet sleeve, copper bar and above-mentioned air bus box.

[0018] Beneficial effects:

[0019] The utility model provides a kind of air bus box, the air bus box includes the box body with containing space inside, box body includes main box body, the rear part of main box body is used to connect with the oil tank of transformer, the side out bushing of transformer is connected with the copper bar located in containing space after passing through the rear part of main box body, main box body bottom is used to cable, the bending side plate is oppositely provided in the both sides of main box body, and bending side plate is diagonal bending shape.By connecting oil tank to the rear part of main box body, and cable is arranged in the bottom of main box body, so that the side out bushing of transformer can be inserted into main box body from rear part, and then copper bar can be connected in box body, cable can pass through the bottom of main box body, and box body protects cable and copper bar;By being provided with diagonal bending shape bending side plate on both sides, the rigidity and strength of bending side plate and box body are increased, bending side plate can better disperse and resist bending stress when subjected to external force, reduce box body deformation or even damage, avoid insufficient copper bar electrical insulation distance due to box wall deformation.

[0020] The utility model provides a kind of transformer, the transformer includes oil tank, side out bushing, copper bar and above-mentioned air bus box, by setting air bus box on oil tank, air bus box has better strength and anti-bending capacity. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the structure schematic diagram of the first visual angle of air bus box provided by the utility model embodiment;

[0022] Figure 2 It is the structure schematic diagram of the second visual angle of air bus box provided by the utility model embodiment;

[0023] Figure 3 It is the structure schematic diagram of the first visual angle of box body frame provided by the utility model embodiment;

[0024] Figure 4 It is the split schematic diagram of the second visual angle of box body frame provided by the utility model embodiment;

[0025] Figure 5 It is the structure schematic diagram of ventilation structure provided by the utility model embodiment;

[0026] Figure 6 It is Figure 2 The local enlarged view of A in;

[0027] Figure 7 It is Figure 2 The local enlarged view of B in;

[0028] Figure 8 It is the structure schematic diagram of the third visual angle of air bus box provided by the utility model embodiment

[0029] Figure 9is a sectional view of the air bus duct box.

[0030] In the drawings:

[0031] 10, box body; 11, main box body; 11a, box body frame; 111, top plate; 112, bottom plate; 113, bent side plate; 114, first guard rail; 115, mounting bracket; 116, bus bar support; 117, lifting lug; 118, mounting structure;

[0032] 121, first side cover plate; 122, second side cover plate; 123, first reinforcing rib; 124, second reinforcing rib; 125, second guard rail;

[0033] 13, bottom cover plate;

[0034] 20, communication hole; 30, observation window; 40, bracket; 50, ventilation structure; 51, ventilation net;

[0035] 100, insulator; 200, copper bar. DETAILED DESCRIPTION

[0036] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and are not limited to the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0037] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0038] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0039] In the description of the present embodiment, the terms "upper", "lower", "right", "left", and the like, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in the description, and have no special meaning.

[0040] As Figures 1 to 5 shown, the present embodiment provides an air bus box and a transformer, the transformer comprising an oil tank, a side-out bushing, a copper bar 200 and an air bus box, the air bus box comprising a box body 10 having an accommodating space inside, the box body 10 comprising a main box body 11, the rear part of the main box body 11 being connected with the oil tank of the transformer, the side-out bushing of the transformer passing through the rear part of the main box body 11 and being connected with the copper bar 200 located in the accommodating space, the bottom part of the main box body 11 being provided with a cable, and the two sides of the main box body 11 being oppositely provided with bent side plates 113 in a diagonal bending shape.

[0041] By connecting the rear part of the main box body 11 with the oil tank and providing the cable through the bottom part of the main box body 11, the side-out bushing of the transformer can be inserted into the main box body 11 from the rear part, and then the copper bar 200 can be connected in the box body 10, the cable can pass through the bottom part of the main box body 11, and the box body 10 can protect the cable and the copper bar 200; by providing the bent side plates 113 in a diagonal bending shape on the two sides, the rigidity and strength of the bent side plates 113 and the box body 10 are increased, the bent side plates 113 can better disperse and resist bending stress when subjected to external force, deformation or even damage of the box body 10 is reduced, and insufficient electrical insulation distance of the copper bar 200 caused by deformation of the box wall is avoided.

[0042] In the present embodiment, the main box body 11 comprises a top plate 111 and a bottom plate 112, the top plate 111 and the bottom plate 112 are parallel and spaced apart, the bent side plates 113 are connected between the top plate 111 and the bottom plate 112, and the bent side plates 113 are oppositely and spaced apart; the top part of the top plate 111 is provided with a plurality of lifting lugs 117, facilitating hoisting of the air bus box. By providing two opposite bent side plates 113, the strength of the two side walls of the main box body 11 can be increased, and deformation or damage of the main box body 11 is avoided.

[0043] It can be understood that the bending side plate 113 designed in a diagonal bending shape as the box wall of the box body 10 can significantly improve the bending resistance of the box body 10. By forming a diagonal bending at the edge of the bending side plate 113, the rigidity and strength of the bending side plate 113 are increased. Specifically, when the bending side plate 113 is subjected to external force, it can better disperse and resist bending stress, thereby reducing the deformation and damage of the box body 10. In contrast, a flat side plate is more likely to deform and damage when subjected to the same external force because it has no additional strengthening measures to disperse and resist bending stress.

[0044] In the embodiment, the main box body 11 is in a rectangular shape as a whole; the two bending side plates 113 are respectively used as the left and right side walls of the main box body 11, the top plate 111 is used as the top wall of the main box body 11, and the bottom plate 112 is used as the bottom wall of the main box body 11; the middle part of the bending side plate 113 protrudes outward in a direction away from the accommodation space (see Figure 3 and Figure 4 the box frame 11a, and the bending side plates 113 on both sides of the box frame 11a are in a convex shape in the middle); the top plate 111, the bottom plate 112, and the two bending side plates 113 are connected by spot welding. By setting the middle part of the bending side plate 113 to protrude outward, the main box body 11 can have a larger internal space without increasing the size of the main box body 11, which helps to ensure the electrical insulation distance of the copper bar 200.

[0045] In the embodiment, the bottom plate 112 is provided with a communication port, and the bottom plate 112 is provided with a bottom cover plate 13. The bottom cover plate 13 is detachably connected to the bottom plate 112 and seals the communication port, and the cable is arranged on the bottom cover plate 13. During installation, a hole is punched in the bottom cover plate 13 so that the cable can pass out of the punched position. One end of the cable is located in the main box body 11 and connected to the copper bar 200, and the other end extends out of the main box body 11. The bottom cover plate 13 can be fixed to the bottom plate 112 by bolts. By providing the bottom cover plate 13, it is convenient to punch holes in the bottom cover plate 13, which provides convenience for punching operation.

[0046] Optionally, the two bending side plates 113 are respectively provided with ventilation structures 50, and the ventilation structures 50 on the two bending side plates 113 are diagonally arranged. The ventilation structure 50 has an air duct that communicates the accommodation space and the external environment. In the embodiment, one ventilation structure 50 is arranged on each bending side plate 113, and the ventilation structure 50 is located at the bending diagonal line of the bending side plate 113. One ventilation structure 50 is arranged near the top of the main box body 11, and the other ventilation structure 50 is arranged near the bottom of the main box body 11.

[0047] By setting the ventilation structure 50 on the two bent side plates 113 respectively, air can flow between the external environment and the containing space through the air duct of the ventilation structure 50, so as to control the air humidity inside the air bus duct box, avoid excessive humidity in the box 10 and thus accumulate water vapor, and better provide insulation protection for the bus.

[0048] Referring to Figure 1 and Figure 5 In the embodiment, each bent side plate 113 is provided with a communication hole 20 at the diagonal position, and the air duct of the ventilation structure 50 communicates with the containing space of the box 10 through the communication hole 20. Both ventilation structures 50 are arranged at the communication hole 20 position of the bent side plate 113, and correspondingly, one communication hole 20 is located near the top of the main box 11, and the other communication hole 20 is located near the bottom of the main box 11. By setting the communication hole 20 at the top and bottom of the box 10, the ventilation structure 50 can play a ventilation role from different heights of the box 10 after installation, thereby effectively controlling the air humidity inside the box 10 to avoid water vapor accumulation.

[0049] Optionally, the ventilation structure 50 includes a base and a cover plate, the base is arranged on the bent side plate 113 and located at the communication hole 20 position; the cover plate is arranged on the base, the air duct is located between the base and the cover plate, one end of the air duct communicates with the containing space through the base, and the other end of the air duct communicates with the external environment through the air duct opening on the cover plate; the ventilation structure 50 further includes a ventilation net 51, the ventilation net 51 is arranged on the base, and the air duct communicates with the containing space through the ventilation net 51; the air duct opening of the cover plate is arranged towards the bottom plate 112; a plastic anti-lost connecting band is further arranged between the base and the cover plate. By setting the ventilation net 51, impurities can be filtered to prevent dust and impurities from entering the air bus duct box from the air duct. The air duct opening is arranged towards the bottom plate 112, so that rainwater cannot flow into the air bus duct box from the air duct opening.

[0050] Further, the rear of the main box 11 is provided with a mounting structure 118, the mounting structure 118 is provided with a flange, the mounting structure 118 is connected with the oil tank through the flange, and the side outlet sleeve extends into the containing space from the mounting opening of the mounting structure 118. By setting the mounting structure 118 at the rear of the main box 11, the mounting structure 118 is provided with a flange, the side outlet sleeve can also extend into the containing space of the box 10 from the mounting opening, and has good connection stability and sealing performance, and the installation steps are simple and convenient for daily maintenance and repair.

[0051] In the embodiment, the first side cover plate 121 is arranged at the mounting opening of the mounting structure 118 and detachably connected with the mounting structure 118. By arranging the detachable first side cover plate 121 at the mounting opening of the mounting structure 118, the mounting opening is closed by the first side cover plate 121 during transportation, so as to ensure the cleanliness and dryness of the inside of the box body 10, and the first side cover plate 121 is only needed to be detached from the box body 10 when in use, so as to connect the mounting structure 118 with the oil tank.

[0052] Optionally, an opening is arranged at the side opposite to the mounting structure 118 of the main box body 11, the second side cover plate 122 is arranged at the opening of the main box body 11 and connected with the main box body 11 to close the opening, and the observation window 30 is arranged on the second side cover plate 122. By arranging the opening at the side opposite to the mounting structure 118 of the main box body 11 and arranging the second side cover plate 122 to close the opening, the observation window 30 is arranged on the second side cover plate 122, so that the inside of the air busbar box can be directly observed by the staff from the observation window 30 on the second side cover plate 122.

[0053] In the embodiment, the second side cover plate 122 is detachably connected with the main box body 11, and the observation window 30 is a window plate made of tempered organic glass. By arranging the second side cover plate 122 to be detachably connected with the main box body 11, the copper bar 200 can be conveniently installed or maintained from the opening by the staff. The tempered organic glass is treated by physical or chemical methods, so that a stress layer is formed on the surface and a tensile stress layer is formed inside. Therefore, compared with ordinary glass, the tempered organic glass has higher strength, better temperature resistance and higher surface hardness, and can be applied to complex environments.

[0054] In the embodiment, three observation windows 30 are arranged on the second side cover plate 122 and evenly spaced in the horizontal direction, the observation window 30 can be fixed on the second side cover plate 122 by bolts, and the observation window 30 is circular. Correspondingly, three observation holes are arranged on the second side cover plate 122, and the three observation windows 30 are arranged at the three observation holes respectively. By arranging multiple observation windows 30, a larger observation range can be provided, and the staff can observe from different positions of the observation windows 30.

[0055] Optionally, the first reinforcing rib 123 is arranged outside the second side cover plate 122; and the second reinforcing rib 124 is arranged outside the top of the main box body 11. By arranging the first reinforcing rib 123 on the second side cover plate 122, the load bearing capacity of the second side cover plate 122 can be enhanced, so that the second side cover plate 122 is more stable and less likely to be deformed when subjected to external force, and the durability and service life of the air busbar box are also improved. In the embodiment, four first reinforcing ribs 123 are arranged on the second side cover plate 122, and one observation window 30 is arranged between every two adjacent first reinforcing ribs 123; and four second reinforcing ribs 124 are also arranged on the top plate 111.

[0056] Optionally, the box body 10 further comprises a sealing gasket, and the sealing gasket is arranged between the first side cover plate 121 and the mounting structure 118. By arranging the sealing gasket, the sealing performance of the connection between the mounting structure 118 and the first side cover plate 121 can be ensured.

[0057] In the embodiment, the mounting structure 118 is provided with a flange, and the opening on the side of the main box body 11 opposite to the mounting structure 118 is also provided with a flange, and the first side cover plate 121 and the second side cover plate 122 are detachably arranged on the corresponding flanges, for example, by screw connection, and the sealing gasket is arranged between the first side cover plate 121 and the second side cover plate 122 and the corresponding flanges.

[0058] Referring to Figure 6 and Figure 7 , further, the mounting structure 118 is provided with the first guard rail 114, and the first guard rail 114 is used to shield the connection position of the flange and the oil tank. By arranging the first guard rail 114, the connection position of the first side cover plate 121 and the oil tank can be effectively shielded, so that rainwater cannot enter from the gap of the connection position, and the service life of the sealing gasket can also be improved by shielding the ultraviolet rays.

[0059] Optionally, the first guard rail 114 is arranged on the flange of the mounting structure 118 and located at the top of the flange. By arranging the first guard rail 114 at the top of the flange of the mounting structure 118, the first guard rail 114 can shield the connection position of the flange and the oil tank from above, so that rainwater cannot enter the air busbar box from the connection position.

[0060] In the embodiment, the second side cover plate 122 is provided with the second guard rail 125 at the top end, and the second guard rail 125 is arranged at the top of the second side cover plate 122 and used to shield the connection position of the second side cover plate 122 and the main box body 11; and the cross sections of the first guard rail 114 and the second guard rail 125 are both L-shaped. By arranging the second guard rail 125 at the top of the second side cover plate 122, the second guard rail 125 can shield the connection position of the second side cover plate 122 and the main box body 11 from above, so that rainwater cannot enter the air busbar box.

[0061] Referring to Figure 8 and Figure 9Optionally, the inner top wall of the main box 11 is further provided with a mounting bracket 115 for hoisting and fixing the insulator 100. By providing the mounting bracket 115 on the inner top wall of the main box 11, the insulator 100 is hoisted and fixed on the mounting bracket 115, one end of the copper bar 200 is fixed on the insulator 100, and the other end is connected with the side outgoing bushing passing through the first side cover plate 121, thereby forming a simply supported beam structure with both ends fixed, which can better fix the copper bar 200 and has better strength, and it is also convenient to add a soft connection between the copper bars 200 to realize position adjustment.

[0062] In the embodiment, the main box 11 is provided with a bus support 116 for fixing the cable. The cable is installed on the copper bar 200 and is fixed by the bus support 116, and a hole is opened on the bottom cover plate 13 to enable the cable to pass out of the main box 11 and be connected to the control room along the buried wire groove.

[0063] Optionally, the air bus box further comprises a support 40, one end of the support 40 is connected with the bottom of the main box 11, and the other end of the support 40 is used for connecting with the oil tank. By providing the support 40, the main box 11 is supported. In the embodiment, the support 40 comprises a pipe structure with a circular cross section, and two supports 40 are provided at intervals. By providing the support 40, the box 10 is supported from the bottom, so that the box 10 can be better fixed on the wall of the oil tank.

[0064] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be made without departing from the protection scope of the utility model. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. An air bus box, characterized by, The utility model provides a box (10) with a containing space in the inside, the box (10) includes main box (11), the rear part of main box (11) is used for connecting with the oil tank of transformer, the side bushing of transformer passes through the rear part of main box (11) and is connected with copper bar (200) in the containing space, the bottom of main box (11) is used for cable to set up, the both sides of main box (11) are oppositely provided with the bent side plate (113), and the bent side plate (113) is diagonal bent.

2. The air busway enclosure of claim 1, wherein, Ventilation structure (50) is arranged on the both sides of the bent side plate (113) respectively, and the ventilation structure (50) on the both sides of the bent side plate (113) is diagonally arranged, and the ventilation structure (50) has the air duct that communicates the containing space and external environment.

3. The air busway enclosure of claim 1, wherein, The inner side of the top of main box (11) is further provided with mounting bracket (115), and the mounting bracket (115) is used for hoisting and fixing insulator (100).

4. The air busway enclosure of claim 1, wherein, The rear part of main box (11) is provided with mounting structure (118), and the mounting structure (118) is provided with flange, the mounting structure (118) is connected with the oil tank through the flange, and the side bushing extends into the containing space from the mounting port of mounting structure (118).

5. The air busway enclosure of claim 4, wherein, The mounting port of mounting structure (118) is provided with first side cover plate (121), and the first side cover plate (121) is detachably connected with mounting structure (118).

6. The air busway enclosure of claim 5, wherein, The first edge protection (114) is arranged on the flange of mounting structure (118) and located at the top of flange.

7. The air busway enclosure of claim 6, wherein, The side of main box (11) opposite to mounting structure (118) is provided with opening, and the opening of main box (11) is provided with second side cover plate (122), and the second side cover plate (122) is connected with main box (11) and closes the opening, and the second side cover plate (122) is provided with observation window (30).

8. The air busway enclosure of claim 4, wherein, The outer side of second side cover plate (122) is provided with first reinforcing rib (123), and / or the top outer side of main box (11) is provided with second reinforcing rib (124).

9. The air busway enclosure of claim 8, wherein, The utility model further includes support (40), one end of support (40) is connected with the bottom of main box (11), and the other end of support (40) is used for connecting with the oil tank.

10. The air bus enclosure of any of claims 1-9, wherein, The utility model provides a box (10) with a containing space in the inside, the box (10) includes main box (11), the rear part of main box (11) is used for connecting with the oil tank of transformer, the side bushing of transformer passes through the rear part of main box (11) and is connected with copper bar (200) in the containing space, the bottom of main box (11) is used for cable to set up, the both sides of main box (11) are oppositely provided with the bent side plate (113), and the bent side plate (113) is diagonal bent.

11. Transformer, characterized in that ​

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