Transformer with interlock function

Abstract

The present invention relates to a transformer having an interlock function, and more specifically, to a transformer having an interlock function that can prevent explosions and safety accidents when a worker replaces a fuse installed in the transformer. The present invention comprises: a transformer body on which a fuse is mounted and exposed to the outside; a cover member mounted on the outside of the transformer body and covering one end of the fuse protruding to the outside of the transformer body; a load switch (LBS) mounted on the inside of the transformer body to electrically connect a bushing and a fuse, with a switch rod protruding to the outside of the transformer body, and which turns the electrical connection between the bushing and the fuse on and off by the rotation of the switch rod; and a connecting member, one end of which is connected to the switch rod and the other end of which is connected to the cover member; wherein, when the switch rod is rotated by an external force, the connecting member, with one end connected to the switch rod, moves to open and close the one end of the fuse, and when the switch rod is rotated and the load switch is turned off, the cover member connected to the connecting member opens the one end of the fuse, and when the switch rod is rotated and the load switch is turned on, the cover member connected to the connecting member covers the one end of the fuse.

Description

Technology Field

[0001] The present invention relates to a transformer having an interlock function, and more specifically, to a transformer having an interlock function that can prevent explosions and safety accidents when a worker replaces a fuse installed in the transformer. Background Technology

[0002] Generally, a transformer installed on the ground consists of a coil structure and a housing, or enclosure, that encloses the coil structure.

[0003] A plurality of fuses connected to the coil structure are mounted on the front of the enclosure, and the fuses are connected to the bushing.

[0004] And, the load switch (LBS) electrically connects the bushing and the fuse, and turns the electrical connection between the bushing and the fuse on and off by the operator's operation.

[0005] If a worker intends to perform work such as replacing a fuse, they must disconnect the power supplied to the fuse before starting the work.

[0006] However, due to worker negligence, there was a problem in which workers performed fuse replacement work while power was supplied to the fuse, resulting in explosions caused by sparks, damage to the transformer, and safety accidents involving the workers. Prior art literature

[0007] Registered Patent 10-2525412 The problem to be solved

[0008] The present invention aims to solve the aforementioned problems by providing a transformer having an interlock function that prevents explosions caused by sparks, damage to the transformer, and safety accidents of workers by cutting off the power supplied to the fuse when the fuse mounted on the transformer is to be worked on. means of solving the problem

[0009] To achieve the above objective, the transformer having an interlock function according to the present invention comprises: a transformer body having a mounting hole formed therein for detachably mounting a fuse, wherein one end of the fuse is exposed to the outside through the mounting hole; a cover member mounted on the outside of the transformer body to cover the one end of the fuse protruding to the outside of the transformer body through the mounting hole; and a load switch (LBS) mounted on the inside of the transformer body to electrically connect a bushing and a fuse, wherein a switch rod protrudes to the outside of the transformer body and switches the electrical connection between the bushing and the fuse on and off by the rotation of the switch rod. The device comprises a connecting member, one end of which is connected to the switch rod and the other end of which is connected to the cover member; wherein, when the switch rod is rotated by an external force, the connecting member, one end of which is connected to the switch rod, moves to cause the cover member to open or close one end of the fuse, and when the switch rod is rotated and the load switch is turned off, the cover member connected to the connecting member opens one end of the fuse, and when the switch rod is rotated and the load switch is turned on, the cover member connected to the connecting member covers one end of the fuse.

[0010] The apparatus further comprises a fixed bracket coupled to the transformer body, wherein one end of the cover member is rotatably mounted on the fixed bracket in an up-and-down direction, and the cover member rotates in an up-and-down direction around the end connected to the fixed bracket by the connecting member to open and close one end of the fuse, and when the switch rod is rotated and the load switch is turned off, the cover member connected to the connecting member rotates upward to open one end of the fuse, and when the switch rod is rotated and the load switch is turned on, the cover member connected to the connecting member rotates downward to cover one end of the fuse.

[0011] The above connecting member converts the rotational motion of one end connected to the switch rod into the up-and-down motion of the other end, thereby enabling the cover member connected to the other end of the connecting member to rotate in the up-and-down direction.

[0012] The above connecting member is positioned on the side of the cover member, and the other end of the connecting member is rotatably hinged to the side of the cover member.

[0013] The above connecting member comprises: a rotating member having one end coupled to the switch rod and rotating together with the switch rod; a first connecting bracket formed by a vertical bend and having one end rotatably coupled to the other end of the rotating member; a connecting rod having one end rotatably coupled to the other end of the first connecting bracket; and a second connecting bracket formed by a vertical bend, having one end rotatably coupled to the other end of the connecting rod and the other end rotatably coupled to the side of the cover member.

[0014] The above-mentioned rotating member comprises a rotating body, one end of which is coupled to the switch rod; and a length-variable body, which is slidably mounted on the other end of the rotating body and moves in the direction of the one end and the other end of the rotating body, wherein the first connecting bracket is rotatably coupled to the length-variable body. Effects of the invention

[0015] According to the transformer having the interlock function of the present invention as described above, the following effects are achieved.

[0016] When a worker intends to perform tasks such as replacing a fuse installed in a transformer, the power supplied to the fuse is cut off to prevent explosions caused by sparks, damage to the transformer, and safety accidents involving the worker. Brief explanation of the drawing

[0017] FIG. 1 is a drawing of a transformer having an interlock function according to an embodiment of the present invention. FIG. 2 is a drawing of a connecting member according to an embodiment of the present invention. FIG. 3 is an enlarged view of the connection portion of the connecting member in FIG. 2. FIG. 4 is a side cross-sectional view of a cover member in a lowered state and a raised state according to an embodiment of the present invention. FIG. 5 is a front view of a cover member in a lowered state and a raised state according to an embodiment of the present invention. Specific details for implementing the invention

[0018] The transformer having an interlock function according to the present invention comprises, as shown in FIGS. 1 to 5, a transformer body (10), a cover member (20), a load switch (30), a connecting member (40), etc.

[0019] The above transformer body (10) is formed in a roughly cuboidal shape, and a mounting hole (11) is formed penetrating the inside and outside.

[0020] A fuse (12) is detachably mounted in the mounting hole (11), and one end of the fuse (12) is exposed to the outside through the mounting hole (11).

[0021] The above fuse (12) includes a high-voltage bushing, a low-voltage bushing, a fuse, etc., which are mounted on the transformer body (10) and to which power is applied.

[0022] The above transformer body (10) can be made in various known shapes as well as a cuboid.

[0023] The above cover member (20) is mounted on the outside of the transformer body (10) and covers one end of the fuse (12) that protrudes to the outside of the transformer body (10) through the mounting hole (11).

[0024] The above cover member (20) can cover one end of the fuse (12) in various ways, for example, by sliding, rotating, etc., it can cover or open one end of the fuse (12).

[0025] In this embodiment, the cover member (20) is mounted so as to be rotatable in the vertical direction relative to the transformer body (10), and thus, one end of the fuse (12) is opened and closed by the vertical rotation of the cover member (20).

[0026] More specifically, the transformer body (10) is connected to a fixed bracket (21).

[0027] One end of the cover member (20) is mounted to the fixed bracket (21) so as to be rotatable in the vertical direction, and the cover member (20) rotates vertically around the end connected to the fixed bracket (21) by the connecting member (40) to open and close one end of the fuse (12).

[0028] In addition, the cover member (20) can move up and down along the fixing bracket (21) at one end, so that the height of the cover member (20) relative to the mounting hole (11) can be adjusted as needed.

[0029] The load switch (30) is mounted inside the transformer body (10) to electrically connect the bushing and the fuse, and to turn the electrical connection between the bushing and the fuse on and off.

[0030] A switch rod (31) protrudes from the load switch (30), and the switch rod (31) protrudes outside the transformer body (10). By rotating the switch rod (31), the load switch (30) turns the electrical connection between the bushing and the fuse on and off.

[0031] One end of the connecting member (40) is connected to the switch rod (31) and the other end is connected to the cover member (20).

[0032] When the switch rod (31) is rotated by an external force, the connecting member (40), one end of which is connected to the switch rod (31), moves so that the cover member (20) opens and closes the fuse (12).

[0033] The connecting member (40) is positioned on the side of the cover member (20), and the other end of the connecting member (40) is rotatably hinged to the side of the cover member (20).

[0034] In this embodiment, since the cover member (20) is mounted so as to be rotatable in the up and down direction, when the switch rod (31) rotates in one direction as shown in FIG. 4(a) and FIG. 5(a), the cover member (20) connected to the connecting member (40) rotates downward to cover one end of the fuse (12).

[0035] And, as shown in FIG. 4(b) and FIG. 5(b), when the switch rod (31) rotates in the other direction, the cover member (20) connected to the connecting member (40) rotates upward to open one end of the fuse (12).

[0036] As described above, the connecting member (40) connecting the switch rod (31) and the cover member (20) converts the rotational movement of one end connected to the switch rod (31) into an up-and-down movement of the other end, thereby allowing the cover member (20) connected to the other end of the connecting member (40) to rotate in the up-and-down direction.

[0037] Specifically, the connecting member (40) comprises a rotating member (41), a first connecting bracket (42), a connecting rod (43), and a second connecting bracket (44), as shown in FIGS. 2 and 3.

[0038] One end of the rotating member (41) is connected to the switch rod (31) and rotates together with the switch rod (31).

[0039] The first connecting bracket (42) is formed by vertical bending, and one end is rotatably connected to the other end of the rotating member (41).

[0040] One end of the above connecting rod (43) is rotatably connected to the other end of the above first connecting bracket (42).

[0041] The first connecting bracket (42) is formed by vertical bending, and one end is rotatably connected to the other end of the connecting rod (43), and the other end is rotatably connected to the side of the cover member (20).

[0042] By the structure of the above-described connecting member (40), the connecting member (40) allows the rotational movement of the rotating member (41) connected to the switch rod (31) to be transmitted to the cover member (20) through the first connecting bracket (42), connecting rod (43), and second connecting bracket (44), thereby enabling the cover member (20) to rotate in the up and down direction around the hinge point connected to the fixed bracket (21).

[0043] And, the above-mentioned rotating member (41) may be composed of a rotating body (41a) and a length-variable body (41b).

[0044] One end of the rotating body (41a) is connected to the switch rod (31) and rotates together with the switch rod (31).

[0045] The above length variable body (41b) is slidably mounted on the other end of the rotating body (41a) and is fixed by moving in the direction of one end and the other end of the rotating body (41a).

[0046] The first connecting bracket (42) is rotatably connected to the length variable body (41b).

[0047] Due to the structure as described above, the rotating member (41) can adjust the length between one end and the other end, so that it can operate accurately even if the positions of the cover member (20) and the switch rod (31) are partially changed.

[0049] Below, we will examine the operation process of the present invention composed of the above-described configuration.

[0050] As illustrated in FIGS. 4(a) and FIGS. 5(a), when the switch rod (31) rotates and the load switch (30) is turned on, the cover member (20) connected to the connecting member (40) rotates downward to cover one end of the fuse (12).

[0051] Therefore, in this case, since one end of the fuse (12) is covered by the cover member (20), the worker cannot work on the fuse (12).

[0052] As illustrated in FIGS. 4(b) and FIGS. 5(b), when the switch rod (31) is rotated and the load switch (30) is turned off, the cover member (20) connected to the connecting member (40) rotates upward to open one end of the fuse (12).

[0053] Therefore, in this case, since one end of the fuse (12) is opened to the outside by the cover member (20), a worker can work on the fuse (12).

[0054] In the present invention, when a worker intends to work on the fuse (12) protruding outside the transformer body (10), the worker cannot work on the fuse (12) because, as shown in FIG. 4(a) and FIG. 5(a), the cover member (20) covers one end of the fuse (12).

[0055] In order to expose the fuse (12) to the outside, the worker must rotate the cover member (20) upward, and at this time, the worker rotates the switch rod (31) using a separate tool.

[0056] As shown in FIGS. 4(b) and FIGS. 5(b), as the switch rod (31) is rotated, the load switch (30) is turned off, and the cover member (20) is rotated upward so that the fuse (12) is exposed to the outside.

[0057] Therefore, when a worker rotates the cover member (20) upward to perform work such as replacing the fuse (12), the load switch (30) is turned off, so that an explosion caused by a spark, damage to the transformer, and safety accidents to the worker can be prevented when the worker replaces the fuse (12).

[0058] The transformer having an interlock function according to the present invention is not limited to the aforementioned embodiments and can be implemented with various modifications within the scope permissible by the technical concept of the present invention. Explanation of the symbols

[0059] 10: Transformer body, 11: Mounting hole, 12: Fuse, 20 : Cover member, 21 : Fixing bracket, 30 : Load switch, 31 : Switch rod, 40: connecting member, 41: rotating member, 41a: rotating body, 41b: length variable body, 42: first connecting bracket, 43: connecting rod, 44: second connecting bracket.

Claims

Claim 1 A transformer body having a mounting hole formed therein for detachably mounting a fuse, wherein one end of the fuse is exposed to the outside through the mounting hole; a cover member mounted on the outside of the transformer body to cover the one end of the fuse protruding to the outside of the transformer body through the mounting hole; a load switch (LBS) mounted on the inside of the transformer body to electrically connect a bushing and a fuse, wherein a switch rod protrudes to the outside of the transformer body, and the electrical connection between the bushing and the fuse is turned on and off by the rotation of the switch rod; and a connecting member having one end connected to the switch rod and the other end connected to the cover member; The apparatus comprises a fixed bracket coupled to the transformer body; wherein, when the switch rod rotates due to an external force, the connecting member, having one end connected to the switch rod, moves to open and close one end of the fuse, and the cover member is mounted so as to be rotatable in the vertical direction at one end of the fixed bracket, and the cover member rotates vertically around the end connected to the fixed bracket by the connecting member to open and close one end of the fuse, and when the switch rod rotates and the load switch is turned off, the cover member connected to the connecting member rotates upward to open one end of the fuse, and when the switch rod rotates and the load switch is turned on, the cover member connected to the connecting member rotates downward to cover one end of the fuse, and the connecting member converts the rotational movement of one end connected to the switch rod into vertical movement of the other end, thereby allowing the cover member connected to the other end of the connecting member to rotate vertically, and the connecting member is on the side of the cover member The connecting member is disposed, and the other end of the connecting member is rotatably hinged to the side of the cover member, and the connecting member comprises: a rotating member having one end coupled to the switch rod and rotating together with the switch rod; a first connecting bracket formed by vertical bending, having one end rotatably coupled to the other end of the rotating member; and a connecting rod having one end rotatably coupled to the other end of the first connecting bracket;A transformer having an interlock function, characterized by comprising: a second connecting bracket formed by vertical bending, having one end rotatably connected to the other end of a connecting rod and the other end rotatably connected to the side of the cover member. Claim 2 delete Claim 3 delete Claim 4 delete Claim 5 delete Claim 6 A transformer having an interlock function according to claim 1, wherein the rotating member comprises: a rotating body having one end coupled to the switch rod; and a length-variable body slidably mounted on the other end of the rotating body and moving in the direction of the one end and the other end of the rotating body, wherein the first connecting bracket is rotatably coupled to the length-variable body.

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