A transformer

Abstract

The present invention discloses a transformer, which belongs to the technical field of electrical equipment. The transformer includes a box and a reinforcement box attached to the outer wall of the box. The reinforcement box and the outer wall of the box form a wiring channel, and the wiring channel is used to accommodate the cables of the transformer. The reinforcement box is provided with an outlet hole and an inlet hole, and the outlet hole and the inlet hole are respectively connected to the wiring channel. In the transformer provided by the present invention, the reinforcement box has sufficient structural strength and rigidity. The reinforcement box is attached to the outer wall of the box to play the role of reinforcing ribs, which can strengthen the strength of the outer wall, improve the overall strength and rigidity of the box, effectively prevent the box from being deformed, and ensure the structural stability of the box; the cables of the transformer are passed through the outlet hole and the inlet hole to the wiring channel formed by the reinforcement box and the outer wall of the box, and there is no need to install a wire trough structure, so as to protect the cables.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment, and in particular to a transformer. Background Art

[0002] At present, in order to prevent the secondary wiring cables from being directly exposed to the air, a cable trough structure is generally installed on the transformer.

[0003] In the prior art, the wire trough structure is usually composed of a wire trough plate and a cover plate. The wire trough plate and the cover plate enclose a wire trough for accommodating cables. The wire trough plate and the cover plate are made of thin materials, which makes the wire trough structure susceptible to deformation and damage by external forces. The deformation and damage of the wire trough plate and the cover plate will squeeze the cables, reduce the sealing of the wire trough structure, and provide poor protection for the cables, making them susceptible to corrosion and aging. In addition, installing a wire trough structure on a transformer requires adding external components outside the transformer box, which makes wiring cumbersome, increases material costs, and may affect the structural stability of the transformer box. Summary of the invention

[0004] The object of the present invention is to provide a transformer with a stable overall structure, which is not prone to deformation and can protect cables.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A transformer is provided, comprising:

[0007] A box body and a reinforcement box attached to the outer wall of the box body, wherein the reinforcement box is used to strengthen the strength of the outer wall of the box body;

[0008] The reinforcement box and the outer side wall of the box body form a wiring channel, and the wiring channel is used to accommodate the cables of the transformer. The reinforcement box is provided with a wire outlet hole and a wire inlet hole, and the wire outlet hole and the wire inlet hole are respectively connected to the wiring channel, and the wire outlet hole and the wire inlet hole are used for the cables to pass through.

[0009] Optionally, the transformer further comprises a first sealing tube connected to the wire inlet hole, wherein the first sealing tube comprises a flexible tube body, and the flexible tube body can be expanded and contracted along a length direction.

[0010] Optionally, the flexible pipe body includes a corrugated pipe or a metal-coated plastic hose.

[0011] Optionally, the transformer further comprises a terminal box, the terminal box is provided with a first connecting elbow, and the first connecting elbow is connected to the first sealing tube.

[0012] Optionally, the reinforcement box is connected to the first sealing tube flange, and / or the first connecting elbow is connected to the first sealing tube flange.

[0013] Optionally, rigid pipe bodies are respectively provided at both ends of the flexible pipe body, the rigid pipe body at one end is connected to the line inlet flange, and the rigid pipe body at the other end is connected to the first connecting elbow flange.

[0014] Optionally, the transformer further comprises a second sealing tube, a first end of the second sealing tube is connected to the wire outlet hole, and a second end of the second sealing tube is used to be connected to an accessory of the transformer.

[0015] Optionally, two adjacent outer walls of the box body are arranged at an angle, a second connecting elbow is provided between the reinforcement boxes located on the two adjacent outer walls, and the second connecting elbow is connected to the wiring channels of the corresponding two reinforcement boxes.

[0016] Optionally, the reinforcement box includes a top plate and a plurality of enclosure plates arranged around the top plate, and an edge of the enclosure plate facing away from the top plate is in contact with an outer wall of the box body.

[0017] Optionally, a cable routing hole is provided on the reinforcement box, and a detachable sealing cover is provided on the cable routing hole.

[0018] Beneficial effects:

[0019] The transformer provided by the present invention has a reinforcing box with sufficient structural strength and rigidity, and is not easily deformed. The reinforcing box is attached to the outer wall of the box body, which plays the role of reinforcing ribs, can strengthen the strength of the outer wall, improve the overall strength and rigidity of the box body, effectively prevent the box body from being deformed, and ensure the structural stability of the box body. In addition, the cables of the transformer are arranged in the wiring channel formed by the reinforcing box and the outer wall of the box body through the outlet hole and the inlet hole, which protects the cables. The transformer does not need to be equipped with a wire trough structure, which is convenient for wiring, effectively reduces material costs, and further ensures the structural stability of the box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a part of the structure of the transformer provided by the present invention from one perspective;

[0021] Figure 2 is a structural schematic diagram of a part of the transformer provided by the present invention from another viewing angle;

[0022] Figure 3 It is a partial structural schematic diagram of the reinforcement box provided by the present invention;

[0023] Figure 4 This is another perspective structural schematic diagram of a partial structure of the transformer provided by the present invention.

[0024] In the figure:

[0025] 100. Terminal box;

[0026] 200, reinforcement box; 201, wiring channel; 202, outlet hole; 203, inlet hole; 2031, extension pipe; 204, cable hole; 210, top plate; 220, enclosure plate; 230, first flange; 240, first pipe joint;

[0027] 300, first sealing tube; 310, flexible tube body; 320, rigid tube body; 330, second flange; 340, fourth flange;

[0028] 400, first connecting elbow; 410, first connecting plate; 420, third flange;

[0029] 500, a second sealing tube;

[0030] 600, second connecting elbow; 610, second connecting plate;

[0031] 700, reinforcement plate;

[0032] 800. Sealing cover. DETAILED DESCRIPTION

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0034] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0037] Reference Figures 1 to 3 As shown, the present embodiment provides a transformer, which includes a box body and a reinforcement box 200 attached to the outer wall of the box body. The reinforcement box 200 is used to strengthen the strength of the outer wall of the box body. The reinforcement box 200 and the outer wall of the box body form a wiring channel 201, and the wiring channel 201 is used to accommodate the cables of the transformer. It can also be understood that the space formed by the outer wall of the box body of the multiplexing transformer and the reinforcement box 200 is used as the wiring channel 201. The reinforcement box 200 is provided with an outlet hole 202 and an inlet hole 203, and the outlet hole 202 and the inlet hole 203 are respectively connected to the wiring channel 201, and the outlet hole 202 and the inlet hole 203 are used for the cable to pass through.

[0038] In this embodiment, the reinforcement box 200 has sufficient structural strength and rigidity, and is not easily deformed. The reinforcement box 200 is attached to the outer wall of the box body, which plays the role of reinforcing ribs, can strengthen the strength of the outer wall, improve the overall strength and rigidity of the box body, effectively prevent the box body from deforming, and ensure the structural stability of the box body. In addition, the cables of the transformer are arranged in the wiring channel 201 formed by the reinforcement box 200 and the outer wall of the box body through the outlet hole 202 and the inlet hole 203, which protects the cables. The transformer does not need to be equipped with a wire trough structure, which is convenient for wiring, effectively reduces material costs, and further ensures the structural stability of the box body.

[0039] In this embodiment, the reinforcement box 200 includes a top plate 210 and a plurality of enclosures 220 arranged around the top plate 210, and the edge of the enclosure 220 facing away from the top plate 210 is in contact with the outer wall of the box. In this embodiment, the enclosure 220 acts as a reinforcing rib, and the top plate 210 can further reinforce the enclosure 220 to prevent the enclosure 220 from deforming. Exemplarily, the wire inlet 203 can be provided on the top plate 210, and the wire outlet 202 can be provided on the enclosure 220 to be suitable for wiring.

[0040] Exemplarily, the reinforcement box 200 may be fixedly connected to the box body by welding to ensure the connection strength between the two.

[0041] Exemplarily, the reinforcement box 200 can be fixedly connected to the box body by bolting. Specifically, a bottom plate can be provided on the side of the back plate facing away from the top plate 210, and the reinforcement box 200 can be fixed outside the box body by bolts passing through the bottom plate. In order to ensure the sealing between the bottom plate and the box body, a first sealing gasket (not shown) can be provided between the bottom plate and the box body.

[0042] Of course, the reinforcement box 200 can also be fixedly connected to the box body in other ways, and this application does not make too many restrictions.

[0043] In this embodiment, the transformer further includes a first sealing tube 300 connected to the wire inlet hole 203. The first sealing tube 300 includes a flexible tube body 310. The flexible tube body 310 can be extended and retracted along the length direction. In this embodiment, the cables of the transformer are passed through the first sealing tube 300, which can further protect the cables. The provision of the flexible tube body 310 in the first sealing tube 300 can prevent the first sealing tube 300 from squeezing the cables.

[0044] Exemplarily, the flexible pipe body 310 includes, but is not limited to, a corrugated pipe or a metal-coated plastic hose.

[0045] In a feasible implementation, rigid tube bodies 320 are respectively provided at both ends of the flexible tube body 310 to ensure the overall shape of the first sealing tube 300 and reduce the length of the flexible tube body 310, thereby effectively reducing material costs.

[0046] In this embodiment, the transformer further includes a terminal box 100, which is connected to the wiring channel 201 through a first sealing tube 300, and the cable is passed through the first sealing tube 300 and electrically connected to the terminal box 100. In this embodiment, the first sealing tube 300 is provided to form a good seal between the reinforcement box 200 and the terminal box 100, so that the cable can be better protected. In addition, the provision of the flexible tube body 310 in the first sealing tube 300 enables the first sealing tube 300 to be suitable for connecting the terminal box 100 and the reinforcement box 200 in different positional relationships.

[0047] Exemplarily, the terminal boxes 100 may be arranged in a one-to-one correspondence with the wire entry holes 203 .

[0048] Exemplarily, the terminal box 100 may be disposed on one side of the box body.

[0049] Specifically, the terminal box 100 is provided with a first connecting elbow 400, and the first connecting elbow 400 is connected to the first sealing tube 300. In this embodiment, by providing the first connecting elbow 400, the length of the first sealing tube 300 can be reduced, so that the first sealing tube 300 is in a straight line, which is convenient for the molding of the first sealing tube 300, and the length of the flexible tube body 310 can be further reduced, effectively reducing the material cost. In addition, by providing the first connecting elbow 400, the connection between the first sealing tube 300 and the terminal box 100 can also be facilitated.

[0050] In this embodiment, according to the positional relationship between the terminal box 100 and the reinforcement box 200, the first connecting elbow 400 can also be replaced by a pipe fitting of other shapes to be suitable for corresponding to the end connected to the first sealing tube 300 and the wire entry hole 203, thereby facilitating the assembly of the first sealing tube 300 and keeping the first sealing tube 300 in good shape.

[0051] Exemplarily, the first connecting elbow 400 can be fixedly connected to the terminal box 100 by bolting. Specifically, a first connecting plate 410 is provided at one end of the first connecting elbow 400 connected to the terminal box 100, and a plurality of first bolts (not shown) are passed through the first connecting plate 410 and threadedly connected to the terminal box 100. In order to ensure the sealing between the first connecting elbow 400 and the terminal box 100, a second sealing gasket (not shown) can be provided between the first connecting elbow 400 and the terminal box 100. The material of the second sealing gasket includes but is not limited to oak or bakelite.

[0052] Exemplarily, the reinforcement box 200 can be flange-connected with the first sealing tube 300. Exemplarily, a first flange 230 is provided on the reinforcement box 200, and a second flange 330 is provided at the first end of the first sealing tube 300. The first flange 230 and the second flange 330 are penetrated by a plurality of first screw connectors (not shown) and threadedly connected with a plurality of first fasteners (not shown) one by one, so as to facilitate assembly. The first screw connector can be a bolt, and the first fastener can be a nut. A third sealing gasket (not shown) can be provided between the first flange 230 and the second flange 330 to ensure the sealing of the connection between the reinforcement box 200 and the first sealing tube 300.

[0053] Specifically, the reinforcement box 200 is provided with an extension pipe 2031 which is connected to the wire inlet hole 203 , and the extension pipe 2031 is provided with a first flange 230 .

[0054] Specifically, the second flange 330 is disposed on the rigid tube body 320 at the first end of the first sealing tube 300 , that is, the rigid tube body 320 at the first end of the first sealing tube 300 is flange-connected to the wire inlet hole 203 .

[0055] Exemplarily, the first connecting elbow 400 can be flange-connected with the first sealing tube 300. Exemplarily, a third flange 420 is provided on one end of the first connecting elbow 400 connected to the first sealing tube 300, and a fourth flange 340 is provided on the second end of the first sealing tube 300. The third flange 420 and the fourth flange 340 are penetrated by a plurality of second screw connectors (not shown) and threadedly connected with a plurality of second fasteners (not shown) one by one, so as to facilitate assembly. Among them, the second screw connector can be a bolt, and the second fastener can be a nut. Among them, a fourth sealing gasket (not shown) can be provided between the third flange 420 and the fourth flange 340 to ensure the connection sealing between the first connecting elbow 400 and the first sealing tube 300.

[0056] Specifically, the fourth flange 340 is disposed on the rigid tube body 320 at the second end of the first sealing tube 300 , that is, the rigid tube body 320 at the second end of the first sealing tube 300 is flange-connected to the first connecting elbow 400 .

[0057] In this embodiment, continue to refer to Figure 1 and Figure 2 As shown, the transformer may further include accessories, and the cables are passed through the outlet holes 202 and electrically connected to the accessories. The accessories may be located on the same side of the box as the terminal box 100, or on different sides of the box, which is not limited in this application.

[0058] In a feasible embodiment, at least one accessory and cable are provided in a one-to-one correspondence, at least one reinforcement box 200 is provided with at least one outlet hole 202, and each cable is respectively passed through one of the outlet holes 202 and electrically connected to the corresponding accessory. It can be understood that, with respect to each accessory, the adjacent reinforcement box 200 has an outlet hole 202 at the position corresponding to it, so as to reduce the length of the cable extending out of the reinforcement box 200 and provide better protection for the cable. Among them, the position corresponding to the reinforcement box 200 and the accessory, that is, the position where the outlet hole 202 is opened, can refer to the position of the reinforcement box 200 corresponding to the accessory in the vertical direction, or the position of the reinforcement box 200 corresponding to the accessory in the horizontal direction. Of course, the position where the outlet hole 202 is opened is not limited to this, and this application does not make too many restrictions.

[0059] Exemplarily, the accessories include, but are not limited to, a radiator junction box and a relay junction box.

[0060] In this embodiment, continue to refer to Figure 1 and Figure 2As shown, the transformer may further include a second sealing tube 500, wherein the first end of the second sealing tube 500 is connected to the outlet hole 202, and the second end of the second sealing tube 500 is connected to the accessory. The second sealing tube 500 is connected to the outlet hole 202 in a one-to-one correspondence, and the cable is passed through the corresponding second sealing tube 500 and is electrically connected to the corresponding accessory. In this embodiment, the terminal for connecting the accessory to the cable is located in the second sealing tube 500. Through the arrangement of the second sealing tube 500, a good seal is formed between the reinforcement box 200 and the accessory, which can better protect the cable.

[0061] Exemplarily, the second sealing tube 500 may be a flexible tube with good sealing performance, such as a plastic-coated metal hose with a smooth internal structure, which is easy to pass when threading cables.

[0062] Exemplarily, the reinforcement box 200 may be provided with a first pipe joint 240 connected to the outlet hole 202, and the first pipe joint 240 is connected to the first end of the second sealing tube 500 for easy assembly. The first pipe joint 240 is arranged one-to-one with the outlet hole 202. Exemplarily, the first pipe joint 240 includes but is not limited to a threaded joint, a gland joint or a clamp joint.

[0063] For example, the accessory may be provided with a second pipe joint (not shown), which is connected to the second end of the second sealing tube 500 for easy assembly. For example, the second pipe joint includes but is not limited to a threaded joint or a clamp joint.

[0064] In a feasible implementation, a sealing member (not shown) is detachably provided on the outlet hole 202, and the sealing member is used to seal the outlet hole 202. In this embodiment, the outlet hole 202 without a cable is sealed by the sealing member, which effectively ensures the sealing of the reinforcement box 200, can better protect the cables in the reinforcement box 200, effectively prevent the cables from being corroded by the external environment, and reduce the aging speed. When the outlet hole 202 needs to be penetrated by a cable, the sealing member can be removed from the outlet hole 202.

[0065] Specifically, the sealing member is disposed on the first pipe joint 240. For example, the sealing member may be a sealing plug, such as an oak plug. When the first pipe joint 240 is a threaded joint, the sealing member may also be connected to the first pipe joint 240 by threaded connection.

[0066] In this embodiment, continue to refer to Figure 1 and Figure 2 As shown, two adjacent outer walls of the box are arranged at an angle, and a second connecting elbow 600 is provided between the reinforcement boxes 200 located on the two adjacent outer walls. The second connecting elbow 600 is connected to the wiring channels 201 of the corresponding two reinforcement boxes 200 to facilitate assembly and wiring.

[0067] Exemplarily, the second connecting elbow 600 can be connected to the reinforcement box 200 by bolt fastening, which is convenient for assembly. Specifically, a second connecting plate 610 is provided on the second connecting elbow 600, and the second connecting plate 610 is penetrated by a plurality of second bolts (not shown) and is threadedly connected to the reinforcement box 200, which is convenient for assembly. Among them, a fifth sealing gasket (not shown) can be provided between the second connecting elbow 600 and the reinforcement box 200 to ensure the sealing of the connection between the second connecting elbow 600 and the reinforcement box 200. Of course, the second connecting elbow 600 can also be connected by welding or other fixed connection methods, and this application does not make too many restrictions.

[0068] In one possible implementation, Figure 4 As shown, at least one of the two sides of the second connecting elbow 600 is further provided with a reinforcing plate 700, and the reinforcing plate 700 is connected to the corresponding two reinforcing boxes 200 to strengthen the connection strength between the two reinforcing boxes 200, and further ensure the structural stability of the box. The reinforcing plate 700 and the reinforcing box 200 can be connected by welding, bolt fastening or other fixed connection methods, and this application does not make too many restrictions.

[0069] In this embodiment, continue to refer to Figure 1 and Figure 2 As shown, the reinforcing box 200 is provided with a cable arrangement hole 204, and a detachable sealing cover 800 is provided on the cable arrangement hole 204, and the sealing cover 800 is used to seal the cable arrangement hole 204. In this embodiment, the arrangement of the cable arrangement hole 204 facilitates the operation of placing and wiring cables.

[0070] Exemplarily, at least one cable routing hole 204 is provided on the reinforcement box 200. The position and number of the cable routing holes 204 can be reasonably set according to operational requirements while satisfying structural performance.

[0071] Exemplarily, the sealing cover 800 can be fixedly connected to the reinforcement box 200 by bolt fastening. A sixth sealing gasket (not shown) can be provided between the sealing cover 800 and the reinforcement box 200 to ensure sealing. The material of the sixth sealing gasket includes but is not limited to oak or bakelite.

[0072] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A transformer, characterized in that: include: A box body and a reinforcement box (200) attached to an outer wall of the box body, wherein the reinforcement box (200) is used to reinforce the strength of the outer wall of the box body; The reinforcement box (200) and the outer side wall of the box body form a wiring channel (201), the wiring channel (201) is used to accommodate the cables of the transformer, the reinforcement box (200) is provided with a wire outlet hole (202) and a wire inlet hole (203), the wire outlet hole (202) and the wire inlet hole (203) are respectively connected to the wiring channel (201), and the wire outlet hole (202) and the wire inlet hole (203) are used for the cables to pass through; The reinforcement box (200) comprises a top plate (210) and a plurality of enclosure plates (220) arranged around the top plate (210), and an edge of one side of the enclosure plate (220) facing away from the top plate (210) is in contact with an outer wall of the box body; Two adjacent outer walls of the box body are arranged at an angle, and a second connecting elbow (600) is provided between the reinforcement boxes (200) located on the two adjacent outer walls, and the second connecting elbow (600) is connected to the wiring channels (201) of the corresponding two reinforcement boxes (200); At least one of the two sides of the second connecting elbow (600) is further provided with a reinforcing plate (700), and the reinforcing plate (700) is connected to the corresponding two reinforcing boxes (200); and The transformer further comprises a first sealed tube (300), the first sealed tube (300) comprising a flexible tube body (310) and rigid tube bodies (320) arranged at both ends of the flexible tube body (310), one end of the rigid tube body (320) being flange-connected to the wire inlet hole (203) to connect the wire inlet hole (203) and the first sealed tube (300).

2. The transformer according to claim 1, characterized in that: The flexible pipe body (310) can be expanded and contracted along the length direction.

3. The transformer according to claim 2, characterized in that: The flexible pipe body (310) comprises a corrugated pipe or a metal-coated plastic hose.

4. The transformer according to claim 2, characterized in that: The transformer further comprises a terminal box (100), on which a first connecting elbow (400) is provided, and the first connecting elbow (400) is connected to the first sealing tube (300).

5. The transformer according to claim 4, characterized in that: The reinforcement box (200) is flange-connected to the first sealing tube (300), and / or the first connecting elbow (400) is flange-connected to the first sealing tube (300).

6. The transformer according to claim 4, characterized in that: The rigid pipe body (320) at the other end is flange-connected to the first connecting elbow (400).

7. The transformer according to claim 1, characterized in that: The transformer further comprises a second sealed tube (500), a first end of the second sealed tube (500) being connected to the wire outlet hole (202), and a second end of the second sealed tube (500) being used for connecting to accessories of the transformer.

8. The transformer according to any one of claims 1 to 7, characterized in that: The reinforcement box (200) is provided with a wire arrangement hole (204), and the wire arrangement hole (204) is provided with a detachable sealing cover (800).

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