KR20210000570A - Electric equipment for ship and the manufacturing method including the same - Google Patents

Abstract

The present invention relates to a switchboard for a ship, which reduces the size of a switchboard frame to increase the efficiency of space utilization from the arrangement of a switchboard chamber and to reduce manufacturing costs of a product, and to a switchboard manufacturing method including the same. The switchboard for a ship comprises: a body frame provided in a box shape and formed in a closed structure to maintain airtightness; and a cradle assembly disposed inside the body frame. The cradle assembly includes: a shutter module fixed to the body frame by a rivet to shield a front surface of a main circuit of a cradle when a vacuum circuit breaker is inserted; a grounding switch module provided on a front surface of the shutter module; and first and second shutter interlock modules provided on a side portion of the grounding switch module to insert and withdraw a circuit breaker. According to the ship switchboard manufacturing method of the present invention, a shutter module is fixed by a rivet to realize a stable operation by preventing a bending process from causing a locking phenomenon when a shutter is opened due to a bending error in the process of a rotation motion and a linear motion when the shutter is operated inside a body frame manufactured in a rectangular box shape. Also, a grounding switch module realized in a link and cylinder-type is connected to the shutter module to allow very stable and accurate operation to be performed by optimizing a circular motion. In addition, a cradle assembly can be assembled inside the body frame through a process of connecting the first and second shutter interlock modules for insertion/withdrawal of a circuit breaker by maximally preventing a malfunction with a simple structure to the grounding switch module.

Description

Ship switchboard and switchboard manufacturing method including the same {ELECTRIC EQUIPMENT FOR SHIP AND THE MANUFACTURING METHOD INCLUDING THE SAME}

The present invention relates to a switchboard for a ship and a method for manufacturing a switchboard including the same, and more particularly, a switchboard for a ship capable of reducing the size of the switchboard frame to increase the efficiency of space utilization of the switchboard room arrangement and to reduce the manufacturing cost of products, It relates to a switchboard manufacturing method.

In general, the switchboard refers to a device that constantly built-in and manages switches, instruments, relays (relays), etc. for the operation or control of power plants or substations, and the operation of electric motors. It receives power and converts it to low voltage by a transformer and distributes it to various electrical equipment systems. The device for distribution is a switchboard.

Safety devices, instruments, indicators, relays, switchgear, etc. are arranged in such switchboards to facilitate opening and closing of converters and control and monitoring of equipment.

The switchboard functions to prevent safety accidents so that the high-voltage current flowing inside the body is not exposed to the human body, and blocks noises such as machinery sound, intake/exhaust sound and vibration sound generated from various devices including internal transformers. Together, by blocking snow or rain, internal devices are prevented from being corroded by acidified snow and rain.

In addition, by blocking direct sunlight, it is possible to prevent deterioration of the insulating oil and deterioration of the efficiency due to the rise of the transformer temperature, and to prevent accidents caused by the intrusion of birds.

On the other hand, such a switchboard can be made in various forms and configurations. One switchboard independently distributes power supplied from the power company, or a plurality of switchboards including the main switchboard and the subsidiary switchboard are combined with each other and It distributes the supplied power.

Inside the cradle of such a switchboard, a main circuit connection terminal and a pull-out device are provided to connect or disconnect the main circuit to the terminal part of the cradle, and an interlock device for safety that prevents the breaker from being pulled in or withdrawn when the breaker is turned on. It is prepared.

Among them, the vacuum circuit breaker is a type of circuit breaker and is designed by taking advantage of its excellent insulation performance and arc extinguishing power in a vacuum state. In particular, the vacuum circuit breaker cuts off the circuit in the vacuum interrupter (VI) inside the circuit breaker by a separate external relay when abnormal currents such as overcurrent, short circuit, and ground fault in the high-voltage distribution line occur to save life and load. To protect.

In general, such a vacuum breaker is housed in a cradle fixed to a switchboard and is used, and the vacuum breaker is installed in a space partitioned by a circuit breaker room within the switchboard.

Conventional switchboard technology is a switchboard configuration in which a cradle for a vacuum circuit breaker (VCB), which is applied separately, is installed separately. In addition, because the size of the switchboard is large, there is a problem of increasing the manufacturing cost of the product because it is difficult to arrange the switchboard room.

Republic of Korea Public Utility Model Publication No. 20-2018-0000846 Korean Patent Publication No. 10-1618498

Accordingly, the present invention has been conceived to solve the above problems, and its object is to reduce the manufacturing cost by making the width of the switchboard smaller than the conventional one by utilizing the inner space of the switchboard through internalization of the cradle mechanism.

In addition, the present invention is a ship switchboard capable of maximizing the performance of a product by configuring a door catch bar, an earthing switch, and an interlock device of the switchboard in an optimized form to enable very stable and accurate operation. A switchboard manufacturing method can be provided.

A distribution board for a ship according to an embodiment of the present invention for achieving the above object includes a body frame provided in a box shape and formed in a sealed structure to maintain airtightness, and a cradle assembly disposed inside the body frame. , The cradle assembly is fixed to the main frame by rivets to shield the front of the main circuit of the cradle when the vacuum breaker is inserted, a ground switch module provided on the front side of the shutter module, and a side of the ground switch module It may include first and second shutter interlock modules for in/out of a circuit breaker.

The shutter module includes a plurality of shutter arms provided on both inner sides of the main frame and fixed with rivets, a link connected to the shutter arm, a blade connected to the link and guided up and down by a linear motion of the link, and the It may include a support bar provided on the rear surface of the blade to prevent the blade from being separated.

A plurality of links may be connected to each shutter arm, and a plurality of blades may be provided to be connected to each link.

The shutter module may be formed of a metal shutter to increase shielding insulation.

The ground switch module may include a main shaft connected to the front of the shutter module, and a current discharging unit connected to the main shaft and operated according to the rotation of the main shaft.

The current discharging unit is connected to the connection frame, the operation unit connected to the main shaft at the side of the connection frame and operated according to the rotation of the main shaft, and the operation unit and the circular pin are connected to the inside of the connection frame according to the operation of the operation unit. It may include a rotating knife and a spring connected to the circular pin on the side of the connection frame to elastically support the circular pin.

The knives may be installed in plural on a circular pin at a predetermined interval.

The first shutter interlock module is provided on the side of the ground switch module, and a plurality of inlets are formed to operate left and right to block or open the inlet, a connection bar connected to the side of the handle member, and the connection bar It is provided at the end of the connection bar may include an operation member for guiding the handle member to open the inlet by rotating.

The second shutter interlock module may include a vertical bar connected to the ground switch module, and a door opening/closing part connected to a lower portion of the vertical bar to open and close the door.

In the method of manufacturing a switchboard for a ship according to an embodiment of the present invention, the bending process is eliminated so that the shutter is not jammed when the shutter is opened due to bending errors during the rotational motion and the linear motion when the shutter is operated inside the body frame manufactured in the form of a square box. The shutter module is fixed with rivets to realize a stable operation, and a link-and-cylinder grounding switch module is connected to the shutter module to enable stable and accurate operation by optimizing circular motion, and the grounding switch module is simple. And it is possible to assemble the cradle assembly inside the main frame through the process of connecting the first and second shutter interlock modules for in/out of a circuit breaker by preventing malfunction with a simple structure.

As described above, according to the distribution board for a ship according to the present invention, by fixing the cradle assembly inside the main frame with rivets and internalizing the cradle assembly, stable operation can be realized without malfunction, and the overall width of the switchboard can be reduced, thereby stabilizing operation. This has the effect of maximizing product performance and reducing manufacturing cost to maximize economic efficiency.

1 is an exploded perspective view showing a switchboard for a ship according to the present invention.
Figure 2 is a perspective view showing a ship switchboard according to the present invention.
3 is a rear perspective view showing a cradle assembly of a ship switchboard according to the present invention.
4 is a perspective view showing a cradle assembly of a ship switchboard according to the present invention.
5 is a front view showing a cradle assembly of a ship switchboard according to the present invention.
6 is a plan view showing a cradle assembly of a ship switchboard according to the present invention.
7 is a perspective view showing a shutter module in the cradle assembly of a ship switchboard according to the present invention.
8 is a side view showing the shutter module according to FIG. 7.
9 is a perspective view showing a ground switch module in the cradle assembly of a ship switchboard according to the present invention.
10 is a side view showing the ground switch module according to FIG. 9.
11 is a perspective view showing a first shutter interlock module in the cradle assembly of a ship switchboard according to the present invention.
12 is a side view illustrating the first shutter interlock module according to FIG. 11.
13 is a perspective view showing a second shutter interlock module in the cradle assembly of a ship switchboard according to the present invention.
14 is a side view illustrating a second shutter interlock module according to FIG. 13.
15 is a flow chart showing a method of manufacturing a ship switchboard according to the present invention.

Since the present invention can make various changes and have various embodiments, specific embodiments are illustrated in the drawings and will be described in detail in the detailed description. However, this is not intended to limit the present invention to a specific embodiment, it is to be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

In the drawings, embodiments of the present invention are not limited to the specific form shown, but are exaggerated for clarity. Although specific terms have been used in the present specification, these are used for the purpose of describing the present invention, and are not used to limit the meaning or the scope of the present invention described in the claims.

In the present specification, the expression'and/or' is used to include at least one of the elements listed before and after. In addition, the expression'connected/combined' is used as a meaning including direct connection with other components or indirect connection through other components. In the present specification, the singular form also includes the plural form unless specifically stated in the phrase. In addition, components, steps, actions and elements referred to as'comprising' or'comprising' as used in the specification means the presence or addition of one or more other elements, steps, actions and elements.

In addition, expressions such as'first, second' and the like are used only for distinguishing a plurality of elements, and do not limit the order or other features between the elements.

In the description of the embodiments, each layer (film), region, pattern, or structure is "on" or "under" of the substrate, each side (film), region, pad or patterns. The description to be formed in "includes all those formed directly or through other layers. The criteria for the top/top or bottom/bottom of each layer will be described based on the drawings.

Hereinafter, an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view showing a ship switchboard according to the present invention, Figure 2 is a combined perspective view showing a ship switchboard according to the present invention, Figure 3 is a rear perspective view showing the cradle assembly of the ship switchboard according to the present invention 4 is a perspective view showing a cradle assembly of a ship switchboard according to the present invention, FIG. 5 is a front view showing a cradle assembly of a ship switchboard according to the present invention, and FIG. 6 is a cradle assembly of the ship switchboard according to the present invention. FIG. 7 is a perspective view showing a shutter module in the cradle assembly of a ship switchboard according to the present invention, FIG. 8 is a side view showing the shutter module according to FIG. 7, and FIG. 9 is for a ship according to the present invention. A perspective view showing the ground switch module in the cradle assembly of the switchboard, FIG. 10 is a side view showing the ground switch module according to FIG. 9, and FIG. 11 is a first shutter interlock module in the cradle assembly of the ship switchboard according to the present invention. 12 is a side view showing a first shutter interlock module according to FIG. 11, and FIG. 13 is a perspective view showing a second shutter interlock module in the cradle assembly of the ship switchboard according to the present invention, and FIG. 14 is a side view showing a second shutter interlock module according to FIG. 13, and FIG. 15 is a flowchart showing a method of manufacturing a ship switchboard according to the present invention.

As shown in FIGS. 1 to 14, the distribution board for a ship according to the present invention includes a main frame 10 and a cradle assembly 100.

The body frame 10 is formed in a rectangular box shape, and the cradle assembly 100 is embedded and has a sealed structure to maintain airtightness.

The cradle assembly 100 is provided by being fixed to the inside of the main frame 10 with rivets 20, a shutter module 200, a ground switch module 300, a first shutter interlock module 400, and A second shutter interlock module 500 is included.

The shutter module 200 is fixed to the main frame 10 with rivets 20 to shield the front of the main circuit of the cradle when the vacuum breaker is inserted.

In addition, the shutter module 200 is formed of a metal shutter to increase shielding insulation efficiency.

7 to 8, the shutter module 200 includes a shutter arm 210, a link 220, a blade 230, and a support bar 240.

The shutter arm 210 is provided in plural on both sides of the body frame 10 and is fixed to the body frame 10 with rivets 20.

In other words, since the shutter arm 210 is fixed to the main frame 10 with rivets 20, a stable operation can be implemented because there is no jamming phenomenon when the shutter is opened due to bending errors during rotational and linear movement during the shutter operation. There will be.

The link 220 is connected to the inner surface of each shutter arm 210 so that the rotational motion of the shutter arm 210 can be converted into a linear motion.

In addition, the links 220 are connected to each shutter arm 210 in plurality.

In addition, the link 220 includes a first link member 221 connected to the shutter arm 210 and a second link member 221 connected to the first link member 221 by a hinge h and connected to the blade 230. It will include a link member 222.

That is, while the first link member 221 and the second link member 222 are rotated about the hinge h, the shutter arm 210 and the blade 230 are guided in a linear motion.

The blade 230 is connected to the link 220 to be guided up and down according to the operation of the link 220.

In addition, the blades 230 are provided with a plurality of upper and lower blades while being connected to each link 220.

The support bar 240 is provided on the rear surface of the blade 230 to prevent separation of the blade 230.

In addition, the support bar 240 is provided in plural on both sides of the blade 230 so as to stably support the blade 230.

The ground switch module 300 is provided in the front of the shutter module 200 to discharge the charging current at the load side during maintenance of the panel or the presence or absence of an abnormality in the withdrawal state of the breaker.

9 to 10, the ground switch module 300 includes a main shaft 310 and a current discharge unit 320.

The main shaft 310 is connected to the front side of the shutter module 200 so as to operate the current discharging unit 320.

The current discharging unit 320 includes a connection frame 321, an operation unit 322, a knife 323, and a spring 324.

The connection frame 321 is provided at the end of the main shaft 310 and is formed in the form of a'U' shaped square plate.

The operation unit 322 is connected to the main shaft 310 on the side of the connection frame 321 and is operated to operate the knife 323 according to the rotation of the main shaft 310.

In addition, since the operation unit 322 is provided in a cylinder manner, there is no case of deviation due to stable operation, so that maintenance is easy.

The knife 323 is connected to an operation part 322 and a circular pin 325 inside the connection frame 321 to rotate according to the operation of the operation part 322.

In addition, a plurality of knives 323 are installed on the circular pins 325 at regular intervals.

The spring 324 is connected to the circular pin 325 on the side of the connection frame 321 to elastically support the circular pin 325.

The first shutter interlock module 400 is provided on the side of the ground switch module 300 to allow the breaker to be in/out.

As shown in FIGS. 11 to 12, the first shutter interlock module 400 includes a handle member 410, a connection bar 420, and an operation member 430.

The handle member 410 is provided on the side of the ground switch module 300, and the inlet 411 is formed to operate left and right, so that the inlet 411 is blocked or opened.

The inlet 411 is formed in a plurality of left and right.

The connection bar 420 is connected to the side portion of the handle member 410 so as to guide the handle member 410 to the left and right according to the rotation operation.

The operation member 430 is provided at the end of the connection bar 420 and rotates the connection bar 420 to open the inlet 411 as the handle member 410 is guided.

The second shutter interlock module 500 is provided on the side of the ground switch module 300.

13 to 14, the second shutter interlock module 500 includes a vertical bar 510 and a door opening/closing part 520.

The vertical bar 510 is connected to the ground switch module 300.

The door opening/closing part 520 is connected to the lower part of the vertical bar 510 and is moved to open and close the door.

As shown in Fig. 15, the method for manufacturing a ship switchboard according to an embodiment of the present invention is a shutter due to a bending error in the process of rotating and linear movement when the shutter is operated inside the main frame 10 manufactured in the form of a square box. The shutter module 200 of the cradle assembly 100 is fixed with rivets 20 so as to implement a stable operation by eliminating the bending process so as not to cause a jamming phenomenon when opened (S100)

In addition, the shutter module 200 is connected to the ground switch module 300 implemented in a link and cylinder manner to enable a stable and accurate operation by optimizing circular motion. (S200)

In addition, the ground switch module 300 is connected to the first and second shutter interlock modules 400 and 500 for in/out of a circuit breaker by preventing malfunction with a simple and simple structure (S300).

Through this process, the cradle assembly 100 can be assembled inside the main frame 10 (S400).

Looking at the operating state according to the ship switchboard of the present invention made as described above is as follows.

Switchboard by assembling and installing the shutter module 200 of the cradle assembly 100, the ground switch module 300, and the first and second shutter interlock modules 400 and 500, respectively, with rivets 20 inside the main frame 10 By reducing the size of the panel, it is possible to increase the space utilization of the distribution panel.

Further, when the shutter arm 210 rotates at a certain angle, the link 220 connected to the shutter arm 210 converts the rotational motion of the shutter arm 210 into a linear motion, and the link ( Due to the linear motion of 220), the blade 230 connected to the link 220 is guided up and down to open the shutter.

In addition, when the shutter module 200 is operated, the shutter is opened by a linear motion of the blade 230 according to the operation of the link 220, thereby eliminating the bending process, thereby implementing a stable operation.

And, as the main shaft 310 rotates, the cylinder type current discharging unit 320 is operated, and the circular pin 325 is rotated by the operation of the current discharging unit 320 so that the knife 323 becomes a circular pin. Since the 325 is rotated around the axis, there is no case of deviation during operation, so that stable and accurate operation is possible.

In addition, as an example, when the main shaft 310 is rotated by approximately 180 degrees, the knife 323 operates while being rotated by approximately 90 degrees, and when the main shaft 310 is operated by approximately 10 degrees, the knife 323 Is operated approximately 5 degrees, so that the force is transmitted smoothly.

In addition, when the knife 323 is operated, it rotates along the circular pin 325, so that the circular motion can be optimized.

In the initial state in which the inlet 411 of the handle member 410 is blocked, the inlet 411 is opened as the connecting bar 420 is rotated by the operation of the operation member 430 at the test position of the vacuum breaker. , The door opening/closing part 520 is rotated by approximately 40 degrees to move the position, and the interlock is released by moving the second shutter interlock module 500.

As described above, the present invention is not limited to the specific preferred embodiment described above, and anyone with ordinary knowledge in the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the claims It goes without saying that modifications are possible, and such modifications are within the scope of the claims.

10: main frame 20: rivet
100: cradle assembly 200: shutter module
210: shutter arm 220: link
221: first link member 222: second link member
230: blade 240: support bar
300: ground switch module 310: main shaft
320: current discharge unit 321: connection frame
322: operating part 323: knife
324: spring 325: circular pin
400: first shutter interlock module 410: handle member
411: inlet 420: connecting bar
430: operating member 500: second shutter interlock module
510: vertical bar 520: door opening and closing
h: hinge

Claims (10)

A body frame provided in the form of a box and formed in a sealed structure to maintain airtightness, and a cradle assembly disposed inside the body frame,
The cradle assembly may include a shutter module that is fixed to the main frame with rivets to shield the front of the main circuit of the cradle when the vacuum breaker is inserted;
A ground switch module provided in front of the shutter module; And
Ship switchboard including; first and second shutter interlock modules provided on the side of the ground switch module for in/out of a circuit breaker. The method of claim 1,
The shutter module,
A plurality of shutter arms provided on both sides of the body frame and fixed with rivets;
A link connected to the shutter arm;
A blade connected to the link and guided up and down in a linear motion of the link; And
A switchboard for ships comprising a; support bar provided on the rear surface of the blade to prevent separation of the blade. The method of claim 2,
The plurality of links are connected to each shutter arm, and a plurality of blades are provided to be connected to each link. The method of claim 1,
The shutter module is a ship switchboard, characterized in that made of a metal shutter to increase the shielding insulation. The method of claim 1,
The ground switch module,
A main shaft connected to the front of the shutter module; And
A distribution board for ships comprising a; current discharging unit connected to the main shaft and operated according to the rotation of the main shaft. The method of claim 5,
The current discharging unit,
Connection frame;
An operation part connected to the main shaft on the side of the connection frame and operated according to the rotation of the main shaft;
A knife connected to an operation part and a circular pin inside the connection frame and rotated according to the operation of the operation part; And
A switchboard for ships comprising a; spring connected to the circular pin on the side of the connection frame to elastically support the circular pin. The method of claim 6,
Said knife is a distribution board for ships, characterized in that installed in plurality at a predetermined interval on the circular pin. The method of claim 1,
The first shutter interlock module,
A handle member provided on the side of the ground switch module and having a plurality of inlets formed therein, so that the inlet is blocked or opened while being operated left and right;
A connection bar connected to the side of the handle member; And
A switchboard for ships comprising: an operation member provided at the end of the connection bar to guide the handle member to open the inlet by rotating the connection bar. The method of claim 1,
The second shutter interlock module,
A vertical bar connected to the ground switch module; And
A switchboard for ships comprising a door opening and closing part connected to the lower part of the vertical bar to open and close the door. In the method for manufacturing the switchboard for a ship according to any one of claims 1 to 9,
The shutter module is fixed with rivets to achieve stable operation by eliminating the bending process so that there is no jamming when the shutter is opened due to bending errors in the process of rotating and linear movement when the shutter is operated inside the main frame made in the form of a square box. And
The shutter module is connected to a ground switch module implemented in a link and cylinder manner to enable very stable and accurate operation by optimizing circular motion,
For ships, characterized by assembling a cradle assembly inside the main frame through the process of connecting the first and second shutter interlock modules for in/out of the circuit breaker by preventing malfunction with a simple and simple structure to the ground switch module. Switchboard manufacturing method.

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