KR102600132B1 - distribution panelboard - Google Patents

Abstract

The distribution board according to the present invention includes an installation plate (10); A main circuit breaker (20) disposed on the installation plate (10); A plurality of main bus bar assemblies (30) connected to the main circuit breaker (20); A branch connector 100 disposed on a side of the main bus bar assembly 30; and a branch breaker 50 connected to the branch connector 100, wherein the branch connector 100 includes a first branch connector 101 disposed on the left side of the main bus bar assembly 30, and the branch connector 100. It includes a second branch connector 102 disposed on the right side of the main bus bar assembly 30.
The present invention has the advantage of being able to change the number and capacity of branch connectors depending on capacity because the first branch connector can be assembled on the left side of the main bus bar assembly and the second branch connector can be assembled on the right side.

Description

distribution panelboard}

The present invention relates to a distribution board that can intuitively check bolt loosening.

In general, a distribution board or switchboard is equipped with various breakers and switches inside the enclosure to draw and distribute power from the outside and supply power selectively. It prevents the lines from being exposed to the outside, thereby providing safety from electric shock and various types of electricity. It consists of a case that prevents accidents.

The method of connecting a bus bar and a branch bus bar according to the prior art involves first machining a hole in the bus bar, processing a tap, coating an insulating material, peeling the insulating material, etc. Next, the branch bus bar was bent in the same way, hole processing, tap processing, insulating material coating work, and insulating material peeling work were performed, and the busbar bus bar and the branch bus bar were directly connected with bolts.

A distribution board or switchboard according to the prior art is a device that is equipped with various circuit breakers and switches within the enclosure to draw and distribute power from the outside and supply power selectively. It prevents the lines from being exposed to the outside, thereby preventing electric shock and various types of electricity. It consists of a case that prevents safety accidents.

The method of connecting a bus bar and a branch bus bar according to the prior art involves first machining a hole in the bus bar, processing a tap, coating an insulating material, peeling the insulating material, etc. Next, the branch bus bar is bent in the same way, hole processing, tap processing, insulating material coating work, and insulating material peeling work are performed to directly connect the bus bar and the branch bus bar with bolts.

However, the distribution board according to the prior art had a problem in that even if the fastening members of the bus bar and branch bus bar were loosened, the manager could not confirm or determine this from the outside until an accident occurred.

Republic of Korea Patent No. 10-0536754 Republic of Korea Registered Utility Model No. 20-0321218

The present invention was devised to solve the above-described conventional problems, and its purpose is to provide a distribution board that can intuitively check the loosening of the main bolts.

The present invention includes an installation plate (10); A main circuit breaker (20) disposed on the installation plate (10); A plurality of main bus bar assemblies (30) connected to the main circuit breaker (20); A branch connector 100 disposed on a side of the main bus bar assembly 30; and a branch breaker 50 connected to the branch connector 100, wherein the branch connector 100 includes a first branch connector 101 disposed on the left side of the main bus bar assembly 30, and the branch connector 100. A distribution board including a second branch connector 102 is provided, which is disposed on the right side of the main bus bar assembly 30.

The main bus bar assembly 30 includes an R-phase main bus bar 31, an S-phase main bus bar 33, a T-phase main bus bar 35, and an N-phase main bus bar ( 37); A first main bus insulator (32) disposed between the R-phase main bus bar (31) and the S-phase main bus bar (33); a second main bus insulator (34) disposed between the S-phase main bus bar (33) and the T-phase main bus bar (35); A third main bus insulator (36) disposed between the T-phase main bus bar (35) and the N-phase main bus bar (37); It may include a fourth main bus insulator 38 disposed between the N-phase main bus bar 37 and the installation plate 10.

The branch connector 100 includes a case 105; a first electrode assembly 201 disposed in the case 105 and connected to the R-phase main bus bar 31 of the main bus bar assembly 30; a second electrode assembly 202 disposed in the case 105 and connected to the S-phase main bus bar 33 of the main bus bar assembly 30; A third electrode assembly 203 disposed in the case 105 and connected to the T-phase main bus bar 35 of the main bus bar assembly 30; and a fourth electrode assembly 204 disposed in the case 105 and connected to the N-phase main bus bar 37 of the main bus bar assembly 30.

The case 105 includes a housing 160 with a space formed therein; a first horizontal portion 110 extending horizontally from the top of the housing 160; a second horizontal part 120 extending in the horizontal direction of the housing 160 and spaced apart from the lower side of the first horizontal part 110; a third horizontal part 130 extending in the horizontal direction of the housing 160 and spaced apart from the lower side of the second horizontal part 120; a fourth horizontal part 140 extending in the horizontal direction of the housing 160 and spaced apart from the lower side of the third horizontal part 130; a fifth horizontal part 150 extending in the horizontal direction of the housing 160 and spaced apart from the lower side of the fourth horizontal part 140; A first case hole 161, a second case hole 162, a third case hole 163, and a fourth case hole 164 formed to penetrate the upper side of the housing 160, and A first insertion part 115 is formed between the first horizontal part 110 and the second horizontal part 120, and a second insertion part is formed between the second horizontal part 120 and the third horizontal part 130 ( 125) is formed, and a third insertion part 135 is formed between the third horizontal part 130 and the fourth horizontal part 140, and the fourth horizontal part 140 and the fifth horizontal part 150 ) The fourth insertion portion 145 may be formed between the

A first bolt loosening detection member 310 passing through the first case hole 161 and supported on the top of the first electrode assembly 201; a second bolt loosening detection member 320 that passes through the second case hole 162 and is supported on the top of the second electrode assembly 202; a third bolt loosening detection member 330 that passes through the third case hole 163 and is supported on the top of the third electrode assembly 203; It may further include a fourth bolt loosening detection member 340 that passes through the fourth case hole 164 and is supported on the top of the fourth electrode assembly 204.

The present invention has the advantage of being able to change the number and capacity of branch connectors depending on capacity because the first branch connector can be assembled on the left side of the main bus bar assembly and the second branch connector can be assembled on the right side.

In the present invention, the bolt loosening detection member is in close contact with the electrode fastening member that is fastened and assembled, and the head of the bolt loosening sensing member is disposed to be exposed to the upper side of the case hole, so when the bolt loosening of the electrode fastening member occurs, the head rises. This has the advantage of allowing workers or managers to intuitively check this.

The present invention has the advantage that the head detection device can simultaneously detect two detection heads arranged on both sides.

1 is a front view showing the inside of a distribution panel according to a first embodiment of the present invention.
Figure 2 is a bottom view showing the main bus bar assembly shown in Figure 1.
Figure 3 is an enlarged view showing the main support insulator of Figure 1.
Figure 4 is a perspective view of the branch connector shown in Figure 1.
Figure 5 is a perspective view seen from the opposite direction of Figure 4.
FIG. 6 is a perspective view of the first electrode assembly shown in FIG. 4.
FIG. 7 is a perspective view of the second electrode assembly shown in FIG. 4.
FIG. 8 is a perspective view of the third electrode assembly shown in FIG. 4.
FIG. 9 is a perspective view of the fourth electrode assembly shown in FIG. 4.
FIG. 10 is an installed cross-sectional view of the first electrode assembly shown in FIG. 4.
FIG. 11 is an installed cross-sectional view of the second electrode assembly shown in FIG. 4.
FIG. 12 is an installed cross-sectional view of the third electrode assembly shown in FIG. 4.
FIG. 13 is an installed cross-sectional view of the fourth electrode assembly shown in FIG. 4.
Figure 14 is a front view of bolt loosening detection members according to the first embodiment of the present invention.
Figure 15 is a front cross-sectional view of bolt loosening detection members according to the second embodiment of the present invention.
Figure 16 is a plan view of a head sensing device according to a third embodiment of the present invention.

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention. While describing each drawing, similar reference numerals are used for similar components.

Terms such as first, second, A, B, etc. may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, a first component may be named a second component, and similarly, the second component may also be named a first component without departing from the scope of the present invention. The term “and/or” includes any of a plurality of related stated items or a combination of a plurality of related stated items.

When a component is said to be "connected" or "connected" to another component, it is understood that it may be directly connected to or connected to the other component, but that other components may exist in between. It should be. On the other hand, when it is mentioned that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless explicitly defined in the present application, should not be interpreted in an ideal or excessively formal sense. No.

In this document, “configured to” means “suitable for,” “having the ability to,” or “changed to,” depending on the situation, for example, in terms of hardware or software. ," can be used interchangeably with "made to," "capable of," or "designed to." In some contexts, the expression “a device configured to” may mean that the device is “capable of” working with other devices or components. For example, the phrase "processor configured (or set) to perform A, B, and C" refers to a processor dedicated to performing the operations (e.g., an embedded processor), or by executing one or more software programs stored on a memory device. , may refer to a general-purpose processor (e.g., CPU or application processor) capable of performing the corresponding operations.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the attached drawings. In order to facilitate overall understanding when describing the present invention, the same reference numerals are used for the same components in the drawings, and duplicate descriptions for the same components are omitted.

Figure 1 is a front view showing the inside of a distribution board according to the first embodiment of the present invention, Figure 2 is a bottom view showing the main bus bar assembly shown in Figure 1, and Figure 3 is a main support insulator shown in Figure 1. It is an enlarged view, FIG. 4 is a perspective view of the branch connector shown in FIG. 1, FIG. 5 is a perspective view seen from the opposite direction of FIG. 4, and FIG. 6 is a perspective view of the first electrode assembly shown in FIG. 4. 7 is a perspective view of the second electrode assembly shown in FIG. 4, FIG. 8 is a perspective view of the third electrode assembly shown in FIG. 4, FIG. 9 is a perspective view of the fourth electrode assembly shown in FIG. 4, and FIG. 10 is a perspective view of the fourth electrode assembly shown in FIG. FIG. 4 is an installed cross-sectional view of the first electrode assembly shown in FIG. 4, FIG. 11 is an installed cross-sectional view of the second electrode assembly shown in FIG. 4, FIG. 12 is an installed cross-sectional view of the third electrode assembly shown in FIG. 4, and FIG. 13 is an installation cross-sectional view of the fourth electrode assembly shown in FIG. 4, and FIG. 14 is a front view of the bolt loosening detection members according to the first embodiment of the present invention.

The distributor according to this embodiment includes an installation plate 10, a main breaker 20 disposed on the installation plate 10, and a plurality of main bus bar assemblies 30 (main bus) connected to the main breaker 20. bar assembly), a branch connector 100 disposed on the side of the main bus bar assembly 30, and a branch breaker 50 connected to the branch connector 100.

The installation plate 10 has a flat shape, and a plurality of holes are formed for installation and separation of the branch connector 100.

The main bus bar assembly 30 is arranged long in the vertical direction.

The branch connector 100 is disposed on the left and right sides of the main bus bar assembly 30, respectively. In this embodiment, the one located on the left side is called the first branch connector 101, and the one located on the right side is called the second branch connector 102.

With the main bus bar assembly 30 in between, the first branch connector 101 and the second branch connector 102 are in close contact with each other and are arranged to surround the main bus bar assembly 30.

The branch breaker 50 includes a first branch breaker 51 electrically connected to the first branch connector 101, and a second branch breaker 52 electrically connected to the second branch connector 102. Includes.

The branch connectors 100 may be arranged in plural numbers in the longitudinal direction of the main bus bar assembly 30.

The branch connector 100 electrically connects the main bus bar assembly 30 and the branch breaker 50.

The main bus bar assembly 30 includes an R-phase main bus bar 31, an S-phase main bus bar 33, a T-phase main bus bar 35, and an N-phase main bus bar 37 spaced apart from the top to the bottom. ) and a first main bus insulator 32 disposed between the R-phase main bus bar 31 and the S-phase main bus bar 33, and the S-phase main bus bar 33 and the T-phase main bus bar. (35), a second main bus insulator (34) disposed between the T-phase main bus bar (35) and the N-phase main bus bar (37), and a third main bus insulator (36) disposed between the It includes a fourth main bus insulator (38) disposed between the N-phase main bus bar (37) and the installation plate (10).

The R-phase main bus bar 31, S-phase main bus bar 33, T-phase main bus bar 35, and N-phase main bus bar 37 are made of a conductive metal material, and the first main bus insulator 32 ), the second main bus insulator (34), the third main bus insulator (36), and the fourth main bus insulator (38) are made of an insulating material.

In this embodiment, the R-phase main bus bar 31 is disposed at the uppermost side, and the S-phase main bus bar 33, T-phase main bus bar 35, and N-phase main bus bar 37 are located at the bottom in that order. are spaced apart and stacked.

In this embodiment, the main support insulator 40 is further disposed between the main circuit breaker 20 and the main bus bar assembly 30.

The main support insulator 40 includes a first main insulator electrode 41 electrically connected to the R-phase main bus bar 31, and a second main insulator electrically connected to the S-phase main bus bar 33. An electrode 42, a third main insulator electrode 43 electrically connected to the T-phase main bus bar 35, and a fourth main insulator electrode electrically connected to the N-phase main bus bar 37 ( 44).

One branch breaker (50) is electrically connected to any one of the R-phase main bus bar (31), S-phase main bus bar (33), T-phase main bus bar (35), or N-phase main bus bar (37). connected.

One branch connector (100) is connected to one branch breaker (50) and the R-phase main bus bar (31), S-phase main bus bar (33), T-phase main bus bar (35) or N-phase main bus bar ( 37) Connect any one of them.

A plurality of the branch connectors 100 may have the same structure.

In this embodiment, the branch connector 100 is electrically connected to the R-phase main bus bar 31, the S-phase main bus bar 33, the T-phase main bus bar 35, or the N-phase main bus bar 37. It is a four-phase structure that can be

Unlike this embodiment, the branch connector is a three-phase or S-phase main bus bar (33) consisting of an R-phase main bus bar (31), an S-phase main bus bar (33), and a T-phase main bus bar (35). It may be composed of two phases consisting of the N-phase main bus bar (37).

The branch connector 100 according to this embodiment is assembled with the R-phase main bus bar 31, S-phase main bus bar 33, T-phase main bus bar 35, or N-phase main bus bar 37. If bolt loosening occurs afterward, there is a feature that allows the manager to intuitively check the bolt loosening through the bolt loosening detection member.

The bolt loosening detection member is arranged at four locations depending on the number of main bus bars. When divided, they are referred to as a first bolt loosening detection member 310, a second bolt loosening detection member 320, a third bolt loosening detection member 330, and a fourth bolt loosening detection member 340.

Since the first branch connector 101 and the second branch connector 102 are classified according to their positions and have the same structure, they will be collectively referred to as the branch connector 100 and their structures will be described.

The branch connector 100 includes a case 105 and a first electrode assembly 201 disposed in the case 105 and connected to the R-phase main bus bar 31 of the main bus bar assembly 30. , a second electrode assembly 202 disposed in the case 105 and connected to the S-phase main bus bar 33 of the main bus bar assembly 30, disposed in the case 105, and connected to the main bus The third electrode assembly 203 is connected to the T-phase main bus bar 35 of the bar assembly 30 and is disposed in the case 105, and the N-phase main bus bar 37 of the main bus bar assembly 30 ) includes a fourth electrode assembly 204 connected to the.

The direction of the branch connector 100 will be explained based on the drawing.

When the branch connector 100 is assembled to the installation plate 10, the direction may be different from the described direction.

The case 105 includes a housing 160 with a space formed therein, a first horizontal portion 110 extending horizontally from the top of the housing 160, and a first horizontal portion 110 extending in the horizontal direction of the housing 160. and a second horizontal part 120 spaced apart from the lower side of the first horizontal part 110, extending in the horizontal direction of the housing 160, and spaced apart from the lower side of the second horizontal part 120. A third horizontal part 130 arranged to be horizontal, a fourth horizontal part 140 extending in the horizontal direction of the housing 160 and spaced apart from the lower side of the third horizontal part 130, and the housing A fifth horizontal portion 150 extending in the horizontal direction of 160 and spaced apart from the lower side of the fourth horizontal portion 140, and a first case hole formed to penetrate the upper side of the housing 160. (161), a second case hole 162, a third case hole 163, and a fourth case hole 164.

A first electrode slit 165, a second electrode slit 166, a third electrode slit 167, and a fourth electrode slit 168 are disposed on the rear surface of the housing 160.

The first electrode slit 165 and the second electrode slit 166 are located behind the first case hole 161, second case hole 162, third case hole 163, and fourth case hole 164. ), the third electrode slit 167 and the fourth electrode slit 168 are disposed.

The first horizontal part 110, the second horizontal part 120, the third horizontal part 130, the fourth horizontal part 140, and the fifth horizontal part 150 are arranged from top to bottom.

The upper surface of the first horizontal part 110 forms a continuous plane with the upper surface of the housing 160, and the bottom surface of the fifth horizontal part 150 forms a continuous plane with the bottom surface of the housing 160. forms.

The housing 160 has a rectangular parallelepiped shape, and includes the first horizontal portion 110, the second horizontal portion 120, the third horizontal portion 130, the fourth horizontal portion 140, and the fifth horizontal portion 150. extends forward from the front of the housing 160.

A first insertion portion 115 is formed between the first horizontal portion 110 and the second horizontal portion 120, and a second insertion portion is formed between the second horizontal portion 120 and the third horizontal portion 130. A portion 125 is formed, and a third insertion portion 135 is formed between the third horizontal portion 130 and the fourth horizontal portion 140, and the fourth horizontal portion 140 and the fifth horizontal portion A fourth insertion portion 145 is formed between 150.

The R-phase main bus bar 31 is inserted into the first insertion part 115, the S-phase main bus bar 33 is inserted into the second insertion part 125, and the third insertion part ( The T-phase main bus bar 35 is inserted into the fourth insertion portion 135, and the N-phase main bus bar 37 is inserted into the fourth insertion portion 145.

One end of the first electrode assembly 201 protrudes outward from the housing 160, and the other end is disposed in the first insertion portion 115 and comes into contact with the R-phase main bus bar 31.

One end of the second electrode assembly 202 protrudes outward from the housing 160, and the other end is disposed in the second insertion portion 125 and comes into contact with the S-phase main bus bar 33.

One end of the third electrode assembly 203 protrudes outward from the housing 160, and the other end is placed in the third insertion portion 135 and comes into contact with the T-shaped main bus bar 35.

One end of the fourth electrode assembly 204 protrudes outward from the housing 160, and the other end is disposed in the fourth insertion portion 135 and comes into contact with the N-phase main bus bar 37.

The first electrode assembly 201 is disposed on a vertical line of the first case hole 161, and the second electrode assembly 202 is disposed on a vertical line of the second case hole 162. The three electrode assembly 203 is disposed on a vertical line of the third case hole 163, and the fourth electrode assembly 204 is disposed on a vertical line of the fourth case hole 164.

Based on the drawing, the first electrode assembly 201 is placed on the far right, and the second electrode assembly 202, third electrode assembly 203, and fourth electrode assembly 204 are placed in that order toward the left.

The first electrode assembly 201 includes a first electrode horizontal portion 212 protruding from the rear surface of the housing 160, and a first electrode vertical portion bent upward from the first electrode horizontal portion 212. 214), a first electrode insertion portion 216 bent in the horizontal direction at the first electrode vertical portion 214 and disposed in the first insertion portion 115, and a first electrode fastening member 211. It includes a first electrode elastic body 250 that is elastically deformably assembled to the first electrode insertion portion 216.

The first electrode horizontal portion 212 penetrates the first electrode slit 165 and protrudes toward the rear of the housing 160.

A first screw hole (not shown) into which the first electrode fastening member 211 is screwed is formed in the first electrode insertion portion 216.

The first electrode fastening member 211 is exposed upward through the first case hole 161. The first electrode fastening member 211 is fixed to the first electrode insertion portion 216 through a tool (eg, driver) inserted through the first case hole 161.

Then, the first bolt loosening detection member 310 is inserted through the first case hole 161, and the upper end of the first electrode fastening member 211 is brought into close contact.

The first bolt loosening detection member 310 includes a first detection head 312 and a first detection rod 314 extending downward from the first detection head 312.

The first sensing head 312 covers the first case hole 161. The first sensing rod 314 penetrates the first case hole 161 and the first electrode fastening member 211 is supported at the top.

Therefore, when the screw loosening of the first electrode fastening member 211 occurs, the first sensing head 312 is spaced upward, and the worker or manager intuitively detects the screw loosening of the first electrode fastening member 211. It can be recognized as

For convenience of recognition, colorful colors such as fluorescent colors are applied to the outer peripheral surface of the first sensing rod 314, and the first sensing rod 314 exposed outside the housing 160 can be easily identified.

Since the first bolt loosening detection member 310 is arranged horizontally when assembling the main bus bar assembly 30 and the branch connector 100, the first detection rod ( 314) movement can be easily checked by workers or managers from the front of the distribution panel.

The rear end of the first electrode elastic body 250 is fastened through the first electrode fastening member 211, and the front end is spaced apart from the first electrode insertion portion 216 in the vertical direction to form a first bus bar insertion gap. do.

In this embodiment, the R-phase main bus bar 31 is inserted at the first bus bar insertion interval.

The rear end of the first electrode elastic body 250 is disposed inside the housing 160, and the front end is disposed in the first insertion portion 115 and does not protrude outside the first insertion portion 115.

The first electrode elastic body 250 is disposed on the upper side of the first electrode insertion part 216, and the front end can be supported in close contact with the bottom surface of the first horizontal part 110, and through this, it is firmly connected to the main bus bar. It can be closely adhered.

A first electrode hole 215 is formed that penetrates the first electrode horizontal portion 212 in the vertical direction, and the first electrode hole 215 is electrically connected to the branch breaker 50.

The first electrode insertion part 216 is mounted on the upper side of the second horizontal part 120.

The first electrode insertion portion 216 is supported on the outer end 121 of the second horizontal portion 120, and through this, the first electrode insertion portion 216 protrudes out of the first insertion portion 115. block it

The second electrode assembly 202 includes a second electrode horizontal portion 222 protruding from the rear surface of the housing 160, and a second electrode vertical portion bent upward from the second electrode horizontal portion 222. 224), a second electrode insertion portion 226 bent in the horizontal direction at the second electrode vertical portion 224 and disposed in the second insertion portion 125, and a second electrode fastening member 221. It includes a second electrode elastic body 260 that is elastically deformably assembled to the second electrode insertion portion 226.

The second electrode horizontal portion 222 penetrates the second electrode slit 166 and protrudes toward the rear of the housing 160. A second screw hole (not shown) into which the second electrode fastening member 221 is screwed is formed in the second electrode insertion portion 226.

The second electrode fastening member 221 is exposed upward through the second case hole 162. The second electrode fastening member 221 is fixed to the second electrode insertion portion 226 through a tool (eg, driver) inserted through the second case hole 162.

Then, the second bolt loosening detection member 320 is inserted through the second case hole 162, and the upper end of the second electrode fastening member 221 is brought into close contact.

The second bolt loosening detection member 320 includes a second detection head 322 and a second detection rod 324 extending downward from the second detection head 322.

The second sensing head 322 covers the second case hole 162. The second sensing rod 324 penetrates the second case hole 162 and the second electrode fastening member 221 is supported at the top.

Therefore, when the screw loosening of the second electrode fastening member 221 occurs, the second sensing head 322 is spaced upward, and the worker or manager intuitively detects the screw loosening of the second electrode fastening member 221. It can be recognized as

For convenience of recognition, colorful colors such as fluorescent colors are applied to the outer peripheral surface of the second sensing rod 324, and the second sensing rod 324 exposed outside the housing 160 can be easily identified.

Since the second bolt loosening detection member 320 is arranged horizontally when assembling the main bus bar assembly 30 and the branch connector 100, the second detection rod ( 324) movement can be easily checked by workers or managers from the front of the distribution board.

The rear end of the second electrode elastic body 260 is fastened through the second electrode fastening member 221, and the front end is spaced apart from the second electrode insertion portion 226 in the vertical direction to form a second bus bar insertion gap. do.

In this embodiment, the S-phase main bus bar 33 is inserted at the second bus bar insertion interval.

The rear end of the second electrode elastic body 260 is disposed inside the housing 160, and the front end is disposed in the second insertion portion 125 and does not protrude outside the second insertion portion 125.

The second electrode elastic body 260 is disposed on the upper side of the second electrode insertion part 226, and the front end can be supported in close contact with the bottom surface of the second horizontal part 120, and through this, it is firmly connected to the main bus bar. It can be closely adhered.

A second electrode hole 225 is formed that penetrates the second electrode horizontal portion 222 in the vertical direction, and the second electrode hole 225 is electrically connected to the branch breaker 50.

The second electrode insertion portion 226 is mounted on the upper side of the second horizontal portion 120.

The second electrode insertion portion 226 is supported on the outer end 131 of the third horizontal portion 130, and through this, the second electrode insertion portion 226 protrudes out of the second insertion portion 125. block it

In this embodiment, the vertical length of the second electrode vertical portion 224 is formed to be shorter than the vertical length of the first electrode vertical portion 214.

The third electrode assembly 203 includes a third electrode horizontal portion 232 protruding from the rear surface of the housing 160, and a third electrode vertical portion bent downward from the third electrode horizontal portion 232 ( 234), a third electrode insertion portion 236 bent in the horizontal direction at the third electrode vertical portion 234 and disposed in the third insertion portion 135, and a third electrode fastening member 231. It includes a third electrode elastic body 270 that is elastically deformably assembled to the third electrode insertion portion 236.

The third electrode horizontal portion 232 penetrates the third electrode slit 167 and protrudes toward the rear of the housing 160. A third screw hole (not shown) into which the third electrode fastening member 231 is screwed is formed in the third electrode insertion portion 236.

The third electrode fastening member 231 is exposed upward through the third case hole 163. The third electrode fastening member 231 is fixed to the third electrode insertion portion 236 through a tool (eg, driver) inserted through the third case hole 163.

Then, the third bolt loosening detection member 330 is inserted through the third case hole 163, and the upper end of the third electrode fastening member 231 is brought into close contact.

The third bolt loosening detection member 330 includes a third detection head 332 and a third detection rod 334 extending downward from the third detection head 332.

The third sensing head 332 covers the third case hole 163. The third sensing rod 334 penetrates the third case hole 163 and the third electrode fastening member 231 is supported at the top.

Therefore, when the screw loosening of the third electrode fastening member 231 occurs, the third sensing head 332 is spaced upward, and the worker or manager intuitively detects the screw loosening of the third electrode fastening member 231. It can be recognized as

For convenience of recognition, colorful colors such as fluorescent colors are applied to the outer peripheral surface of the third sensing rod 334, and the third sensing rod 334 exposed outside the housing 160 can be easily identified.

Since the third bolt loosening detection member 330 is arranged horizontally when assembling the main bus bar assembly 30 and the branch connector 100, the third detection rod (330) is caused by the screw loosening of the third electrode fastening member 231. 334) movement can be easily checked by workers or managers from the front of the distribution board.

The rear end of the third electrode elastic body 270 is fastened through the third electrode fastening member 231, and the front end is spaced apart from the third electrode insertion portion 236 in the vertical direction to form a third bus bar insertion gap. do.

In this embodiment, the T-phase main bus bar 35 is inserted at the third bus bar insertion interval.

The rear end of the third electrode elastic body 270 is disposed inside the housing 160, and the front end is disposed in the third insertion portion 135 and does not protrude outside the third insertion portion 135.

The third electrode elastic body 270 is disposed on the upper side of the third electrode insertion part 236, and the front end can be supported in close contact with the bottom surface of the third horizontal part 130, thereby forming a strong connection with the main bus bar. It can be closely adhered.

A third electrode hole 235 is formed that penetrates the third electrode horizontal portion 232 in the vertical direction, and the third electrode hole 235 is electrically connected to the branch breaker 50.

The third electrode insertion portion 236 is mounted on the upper side of the fourth horizontal portion 140.

The third electrode insertion portion 236 is supported on the outer end 141 of the fourth horizontal portion 140, and through this, the third electrode insertion portion 236 protrudes out of the third insertion portion 135. block it

In this embodiment, the vertical length of the third electrode vertical portion 234 is the same as the second electrode vertical portion 224 and is shorter than the vertical length of the first electrode vertical portion 214.

The fourth electrode assembly 204 includes a fourth electrode horizontal portion 242 protruding from the rear surface of the housing 160, and a fourth electrode vertical portion bent downward from the fourth electrode horizontal portion 242. 244), a fourth electrode insertion portion 246 bent in the horizontal direction at the fourth electrode vertical portion 244 and disposed in the fourth insertion portion 145, and a fourth electrode fastening member 241. It includes a fourth electrode elastic body 280 that is elastically deformably assembled to the fourth electrode insertion portion 246.

The fourth electrode horizontal portion 242 penetrates the fourth electrode slit 168 and protrudes toward the rear of the housing 160. A fourth screw hole (not shown) into which the fourth electrode fastening member 241 is screwed is formed in the fourth electrode insertion portion 246.

The fourth electrode fastening member 241 is exposed upward through the fourth case hole 164. The fourth electrode fastening member 241 is fixed to the fourth electrode insertion portion 246 through a tool (eg, driver) inserted through the fourth case hole 164.

Then, the fourth bolt loosening detection member 340 is inserted through the fourth case hole 164, and the upper end of the fourth electrode fastening member 241 is brought into close contact.

The fourth bolt loosening detection member 340 includes a fourth detection head 342 and a fourth detection rod 344 extending downward from the fourth detection head 342.

The fourth sensing head 342 covers the fourth case hole 164. The fourth sensing rod 344 penetrates the fourth case hole 164 and the fourth electrode fastening member 241 is supported at the top.

Therefore, when the screw loosening of the fourth electrode fastening member 241 occurs, the fourth sensing head 342 is spaced upward, and the worker or manager intuitively detects the screw loosening of the fourth electrode fastening member 241. It can be recognized as

For convenience of recognition, colorful colors such as fluorescent colors are applied to the outer peripheral surface of the fourth sensing rod 344, and the fourth sensing rod 344 exposed outside the housing 160 can be easily identified.

Since the fourth bolt loosening detection member 340 is arranged horizontally when assembling the main bus bar assembly 30 and the branch connector 100, the fourth detection rod ( 344) can be easily checked by workers or managers from the front of the distribution board.

The rear end of the fourth electrode elastic body 280 is fastened through the fourth electrode fastening member 241, and the front end is spaced apart from the fourth electrode insertion portion 246 in the vertical direction to form a fourth bus bar insertion gap. do.

In this embodiment, the N-phase main bus bar 37 is inserted at the fourth bus bar insertion interval.

The rear end of the fourth electrode elastic body 280 is disposed inside the housing 160, and the front end is disposed in the fourth insertion portion 145 and does not protrude outside the fourth insertion portion 145.

The fourth electrode elastic body 280 is disposed on the upper side of the fourth electrode insertion portion 246, and the front end can be supported in close contact with the bottom surface of the fourth horizontal portion 130, thereby forming a strong connection with the main bus bar. It can be closely adhered.

A fourth electrode hole 245 is formed that penetrates the fourth electrode horizontal portion 242 in the vertical direction, and the fourth electrode hole 245 is electrically connected to the branch breaker 50.

The fourth electrode insertion portion 246 is mounted on the upper side of the fifth horizontal portion 150.

The fourth electrode insertion portion 246 is supported on the outer end 151 of the fifth horizontal portion 150, and through this, the fourth electrode insertion portion 246 protrudes out of the fourth insertion portion 145. block it

In this embodiment, the vertical length of the fourth electrode vertical portion 244 is the same as the first electrode vertical portion 214, and the upper and lower sides of the second electrode vertical portion 224 or the third electrode vertical portion 234 It is formed longer than the direction length.

The first electrode vertical portion 214, the second electrode vertical portion 224, the third electrode vertical portion 234, and the fourth electrode vertical portion 244 are supported in the internal space of the housing 160, and each It further includes a vertical support portion that blocks the electrode vertical portion from moving toward each insertion portion.

The vertical support portion is disposed in front of each electrode slit, and the protrusion length of each electrode horizontal portion can be ensured at a constant level through the vertical support portion.

The length of the first sensing rod 314 is referred to as the first rod length (L1), the length of the second sensing rod 324 is referred to as the second rod length (L2), and the third sensing rod 334 The length of is referred to as the third rod length (L3), and the length of the fourth sensing rod 344 is referred to as the fourth rod length (L4).

In this embodiment, the first bolt loosening detection member 310, the second bolt loosening detection member 320, the third bolt loosening detection member 330, and the fourth bolt loosening detection member 340 are formed to be long in that order.

Specifically, the first sensing rod 314, the second sensing rod 324, the third sensing rod 334, and the fourth sensing rod 344 are formed to be long in that order.

Figure 15 is a cross-sectional view showing the assembly structure of the second bolt loosening detection member and the second electrode assembly according to the second embodiment of the present invention, and Figure 16 is a partially enlarged cross-sectional view of Figure 15.

The first bolt loosening detection member 310 according to this embodiment has a first bolt hole 315 formed to penetrate the first detection head 312 and the first detection rod 314, and the first bolt hole 315 is formed to penetrate the first detection head 312 and the first detection rod 314. A first alarm device 1310 is further disposed in the bolt hole 315.

The first bolt hole 315 is formed to pass through the central axis of the first sensing head 312 and the first sensing rod 314.

One end of the first bolt hole 315 is exposed through the first sensing head 312, and the other end is exposed through the first sensing rod 314.

The first alarm device 1310 includes a first alarm rod 1314 that is in contact with the first electrode fastening member 211 and detects the current of the R-phase main bus bar 31, and the first alarm rod ( 1314) and includes a first alarm 1312 exposed outside the first sensing head 312.

The first alarm rod 1314 includes a conductive material. The first alarm 1312 may be an LED. The first alarm 1312 emits light through the built-in battery power when the electrical connection with the R-phase main bus bar 31 is interrupted.

That is, when the first bolt loosening detection member 310 is inserted into the first case hole 161 but does not contact the first electrode fastening member 211, the first alarm 1312 emits light. Therefore, incorrect installation of the first bolt loosening detection member 310 can be prevented.

Meanwhile, a first load magnet 1315 is inserted and disposed at the end of the first alarm rod 1314. The first load magnet 1315 may be a permanent magnet capable of forming an attractive force based on magnetic force with the first electrode fastening member 211.

Since the first load magnet 1315 remains in close contact with the first electrode fastening member 211 through magnetic attraction, even if vibration or external shock occurs, the first bolt loosening detection member 310 and Separation of the first electrode fastening members 211 can be suppressed. Through this, the first bolt loosening detection member 310 can be prevented from protruding outward even though the bolt is not in a loose state.

The second bolt loosening detection member 320 has a second bolt hole 325 formed to penetrate the second detection head 322 and the second detection rod 324, and the second bolt hole 325 A second alarm device 1320 is further disposed.

The second alarm device 1320 includes a second alarm rod 1324 that is in contact with the second electrode fastening member 221 and detects the current of the S-phase main bus bar 33, and the second alarm rod ( 1324) and includes a second alarm 1322 exposed outside the second sensing head 322.

Even if the second bolt loosening detection member 320 is inserted into the second case hole 162, if it does not contact the second electrode fastening member 221, light is emitted from the second alarm 1322. , incorrect installation of the second bolt loosening detection member 320 can be prevented.

Meanwhile, a second load magnet 1325 is inserted and disposed at the end of the second alarm rod 1324. The second load magnet 1325 may be a permanent magnet capable of forming an attractive force based on magnetic force with the second electrode fastening member 221.

Since the second load magnet 1325 remains in close contact with the second electrode fastening member 221 through magnetic attraction, even if vibration or external shock occurs, the second bolt loosening detection member 320 and Separation of the second electrode fastening members 221 can be suppressed. Through this, even though the bolt is not in a loosened state, the second bolt loosening detection member 320 can be prevented from protruding to the outside.

The third bolt loosening detection member 330 has a third bolt hole 335 formed to penetrate the third detection head 332 and the third detection rod 334, and the third bolt hole 335 A third alarm device 1330 is further disposed.

The third alarm device 1330 includes a third alarm rod 1334 that is in contact with the third electrode fastening member 231 and detects the current of the T-phase main bus bar 35, and the third alarm rod ( 1334) and includes a third alarm 1332 exposed outside the third detection head 332.

Even if the third bolt loosening detection member 330 is inserted into the third case hole 163, if it does not contact the third electrode fastening member 231, light is emitted from the third alarm 1332. , incorrect installation of the third bolt loosening detection member 330 can be prevented.

Meanwhile, a third load magnet 1335 is inserted and disposed at the end of the third alarm rod 1334. The third load magnet 1335 may be a permanent magnet capable of forming an attractive force based on magnetic force with the third electrode fastening member 231.

Since the third load magnet 1335 remains in close contact with the first electrode fastening member 231 through magnetic attraction, even if vibration or external shock occurs, the third bolt loosening detection member 330 and Separation of the third electrode fastening members 231 can be suppressed. Through this, the third bolt loosening detection member 330 can be prevented from protruding outward even though the bolt is not in a loose state.

The fourth bolt loosening detection member 340 has a fourth bolt hole 345 formed to penetrate the fourth detection head 342 and the fourth detection rod 344, and the fourth bolt hole 345 A fourth alarm device 1340 is further disposed.

The fourth alarm device 1340 includes a fourth alarm rod 1344 that is in contact with the fourth electrode fastening member 241 and detects the current of the N-phase main bus bar 37, and the fourth alarm rod ( 1344) and includes a fourth alarm 1342 exposed outside the fourth sensing head 342.

Even if the fourth bolt loosening detection member 340 is inserted into the fourth case hole 164, if it does not contact the fourth electrode fastening member 241, light is emitted from the fourth alarm 1342. , incorrect installation of the fourth bolt loosening detection member 340 can be prevented.

Meanwhile, a fourth load magnet 1345 is inserted and disposed at the end of the fourth alarm rod 1344. The fourth load magnet 1345 may be a permanent magnet capable of forming an attractive force based on magnetic force with the fourth electrode fastening member 241.

Since the fourth load magnet 1345 remains in close contact with the fourth electrode fastening member 241 through magnetic attraction, even if vibration or external shock occurs, the fourth bolt loosening detection member 340 and Separation of the fourth electrode fastening member 241 can be suppressed. Through this, the fourth bolt loosening detection member 340 can be prevented from protruding outward even though the bolt is not in a loose state.

Then, the bolt loosening occurs and any one of the first bolt loosening detection member 310, the second bolt loosening detection member 320, the third bolt loosening detection member 330, or the fourth bolt loosening detection member 340 When protruding, the first alarm 1312, second alarm 1322, third alarm 1332, and fourth alarm 1342 are turned off, and bolt loosening is intuitively performed through each exposed detection rod. You can check it.

Hereinafter, since the remaining configuration is similar to the first embodiment, detailed description will be omitted.

Figure 16 is a plan view of a head sensing device according to a third embodiment of the present invention.

Unlike the second embodiment, the distribution board according to this embodiment is mounted on the upper side of the case 105 and detects the first detection head 312, the second detection head 322, the third detection head 332, or the fourth detection head 312. It further includes a head detection device that detects any one of the detection heads 342.

In this embodiment, the head detection device is a first head detection device that simultaneously detects the first detection head 312 of the first branch connector 101 and the fourth detection head 342 of the second branch connector 102. (410) and a second head detection device 420 that simultaneously detects the second detection head 322 of the first branch connector 101 and the third detection head 332 of the second branch connector 102. , a third head detection device 430 that simultaneously detects the third detection head 332 of the first branch connector 101 and the second detection head 322 of the second branch connector 102, and the first It includes a fourth head detection device 440 that simultaneously detects the fourth detection head 342 of the branch connector 101 and the first detection head 312 of the second branch connector 102.

Since the first head detection device 410, second head detection device 420, third head detection device 430, and fourth head detection device 440 have the same configuration, they are collectively referred to as head detection device 400. Next, the structure will be explained.

The head sensing device 400 includes a sensing body 450 mounted on the upper side of the case 105, and is disposed on the sensing body 450 and transmits an optical signal toward the first branch connector 101. A first optical sensor 460 for projecting and receiving a reflected optical signal, disposed on the sensing body 450, and projecting an optical signal toward the second branch connector 102 and receiving a reflected optical signal. It includes a second optical sensor 470 that receives light.

The sensing body 450 is disposed midway between the first branch connector 101 and the second branch connector 102.

A reflective material or reflective member (not shown) capable of reflecting the optical signal is placed on the outer peripheral surface of the first sensing head 312, the second sensing head 322, the third sensing head 332, and the fourth sensing head 342. city) is placed.

The first optical sensor 460 and the second optical sensor 470 may be photosensors.

The first optical sensor 460 and the second optical sensor 470 are larger than the first detection head 312, the second detection head 322, the third detection head 332, and the fourth detection head 342. It is disposed on the upper side, and when the first sensing head 312, the second sensing head 322, the third sensing head 332, and the fourth sensing head 342 are raised due to the bolt loosening, the first light The sensor 460 and the light control sensor 470 detect this and provide an alarm.

The head sensing device 400 includes a speaker (not shown) capable of generating sound, and includes the first sensing head 312, the second sensing head 322, the third sensing head 332, and the fourth sensing head 312. When the detection head 342 is raised, it detects this and generates an acoustic signal that can be recognized by the worker or manager.

A worker or manager can recognize abnormalities in the distribution board through the acoustic signal of the head detection device 400 and check whether the bolt is loosened.

The head detection device 400 of the distribution board according to this embodiment has the feature of being able to simultaneously detect two detection heads arranged on both sides.

Hereinafter, since the remaining configuration is similar to the second embodiment, detailed description will be omitted.

In the detailed description of the present invention, specific embodiments have been described, but of course, various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the patent claims described later, but also by the scope of this patent claim and equivalents.

10: Installation plate 20: Main breaker
30: Main bus bar assembly 31: R-phase main bus bar
33: S-phase main bus bar 35: T-phase main bus bar
37: N-phase main bus bar 40: Main support insulator
50: branch breaker 100: branch connector
110: first horizontal part 120: second horizontal part
130: third horizontal portion 140: fourth horizontal portion
150: fifth horizontal portion 160: housing
161: 1st case hole 162: 2nd case hole
163: 3rd case hole 164: 4th case hole
201: first electrode assembly 202: second electrode assembly
203: Third electrode assembly 204: Fourth electrode assembly
310: first bolt loosening sensing member 320: second bolt loosening sensing member
330: Third bolt loosening sensing member 340: Fourth bolt loosening sensing member

Claims (5)

In the distribution board,
Mounting plate (10);
A main circuit breaker (20) disposed on the installation plate (10);
A plurality of main bus bar assemblies (30) connected to the main circuit breaker (20);
A branch connector 100 disposed on a side of the main bus bar assembly 30;
It includes a branch breaker (50) connected to the branch connector (100),
The branch connector 100 includes a first branch connector 101 disposed on the left side of the main bus bar assembly 30, and a second branch connector 102 disposed on the right side of the main bus bar assembly 30. ), including
The main bus bar assembly 30 includes an R-phase main bus bar 31, an S-phase main bus bar 33, a T-phase main bus bar 35, and an N-phase main bus bar ( 37);
A first main bus insulator (32) disposed between the R-phase main bus bar (31) and the S-phase main bus bar (33);
A second main bus insulator (34) disposed between the S-phase main bus bar (33) and the T-phase main bus bar (35);
A third main bus insulator (36) disposed between the T-phase main bus bar (35) and the N-phase main bus bar (37);
It includes a fourth main bus insulator (38) disposed between the N-phase main bus bar (37) and the installation plate (10),
The branch connector 100,
Case (105);
a first electrode assembly 201 disposed in the case 105 and connected to the R-phase main bus bar 31 of the main bus bar assembly 30;
a second electrode assembly 202 disposed in the case 105 and connected to the S-phase main bus bar 33 of the main bus bar assembly 30;
A third electrode assembly 203 disposed in the case 105 and connected to the T-phase main bus bar 35 of the main bus bar assembly 30; and
It includes a fourth electrode assembly 204 disposed in the case 105 and connected to the N-phase main bus bar 37 of the main bus bar assembly 30,
In the case 105,
A housing 160 with a space formed therein;
a first horizontal portion 110 extending horizontally from the top of the housing 160;
a second horizontal part 120 extending in the horizontal direction of the housing 160 and spaced apart from the lower side of the first horizontal part 110;
a third horizontal part 130 extending in the horizontal direction of the housing 160 and spaced apart from the lower side of the second horizontal part 120;
a fourth horizontal part 140 extending in the horizontal direction of the housing 160 and spaced apart from the lower side of the third horizontal part 130;
a fifth horizontal part 150 extending in the horizontal direction of the housing 160 and spaced apart from the lower side of the fourth horizontal part 140;
It includes a first case hole 161, a second case hole 162, a third case hole 163, and a fourth case hole 164 formed to penetrate the upper side of the housing 160,
A first insertion portion 115 is formed between the first horizontal portion 110 and the second horizontal portion 120, and a second insertion portion is formed between the second horizontal portion 120 and the third horizontal portion 130. A portion 125 is formed, and a third insertion portion 135 is formed between the third horizontal portion 130 and the fourth horizontal portion 140, and the fourth horizontal portion 140 and the fifth horizontal portion A fourth insertion portion 145 is formed between (150),
The first electrode assembly 201,
A first electrode horizontal portion 212 protruding from the rear surface of the housing 160, a first electrode vertical portion 214 bent upward from the first electrode horizontal portion 212, and the first electrode vertical portion A first electrode insertion portion 216 is bent in the horizontal direction at 214 and disposed in the first insertion portion 115, and the first electrode insertion portion 216 is connected through the first electrode fastening member 211. It includes a first electrode elastic body 250 that is elastically deformably assembled,
The second electrode assembly 202,
A second electrode horizontal portion 222 protruding from the rear surface of the housing 160, a second electrode vertical portion 224 bent upward from the second electrode horizontal portion 222, and the second electrode vertical portion A second electrode insertion portion 226 is bent in the horizontal direction at 224 and disposed in the second insertion portion 125, and the second electrode insertion portion 226 is connected through the second electrode fastening member 221. It includes a second electrode elastic body 260 that is elastically deformably assembled,
The third electrode assembly 203 includes a third electrode horizontal portion 232 protruding from the rear surface of the housing 160, and a third electrode vertical portion bent downward from the third electrode horizontal portion 232 ( 234), a third electrode insertion portion 236 bent in the horizontal direction at the third electrode vertical portion 234 and disposed in the third insertion portion 135, and a third electrode fastening member 231. It includes a third electrode elastic body 270 that is elastically deformably assembled to the third electrode insertion portion 236,
The fourth electrode assembly 204 includes a fourth electrode horizontal portion 242 protruding from the rear surface of the housing 160, and a fourth electrode vertical portion bent downward from the fourth electrode horizontal portion 242. 244), a fourth electrode insertion portion 246 bent in the horizontal direction at the fourth electrode vertical portion 244 and disposed in the fourth insertion portion 145, and a fourth electrode fastening member 241. It includes a fourth electrode elastic body 280 that is elastically deformably assembled to the fourth electrode insertion portion 246,
A first bolt loosening detection member 310 passing through the first case hole 161 and supported on the top of the first electrode fastening member 211;
a second bolt loosening detection member 320 that passes through the second case hole 162 and is supported on the top of the second electrode fastening member 221;
a third bolt loosening detection member 330 that passes through the third case hole 163 and is supported on the top of the third electrode fastening member 231;
It further includes a fourth bolt loosening detection member 340 that penetrates the fourth case hole 164 and is supported on the top of the fourth electrode fastening member 241,
The first electrode fastening member 211, the second electrode fastening member 221, the third electrode fastening member 231, and the fourth electrode fastening member 241 are disposed at different heights,
The first electrode fastening member 211, the second electrode fastening member 221, the third electrode fastening member 231, and the fourth electrode fastening member 241 are disposed at different heights, and correspondingly, the first electrode fastening member 221 is disposed at different heights. The bolt loosening sensing member 310, the second bolt loosening sensing member 320, the third bolt loosening sensing member 330, and the fourth bolt loosening sensing member 340 are formed to have different lengths,
The first bolt loosening detection member 310 includes a first detection head 312 and a first detection rod 314 extending downward from the first detection head 312,
The first sensing head 312 covers the first case hole 161, and the first sensing rod 314 penetrates the first case hole 161 to connect the first electrode fastening member 211. It is supported at the top,
The second bolt loosening detection member 320 includes a second detection head 322 and a second detection rod 324 extending downward from the second detection head 322,
The second sensing head 322 covers the second case hole 162, and the second sensing rod 324 penetrates the second case hole 162 to connect the second electrode fastening member 221. It is supported at the top,
The third bolt loosening detection member 330 includes a third detection head 332 and a third detection rod 334 extending downward from the third detection head 332,
The third sensing head 332 covers the third case hole 163, and the third sensing rod 334 penetrates the third case hole 163 to connect the third electrode fastening member 231. supported at the top,
The fourth bolt loosening detection member 340 includes a fourth detection head 342 and a fourth detection rod 344 extending downward from the fourth detection head 342,
The fourth sensing head 342 covers the fourth case hole 164, and the fourth sensing rod 344 penetrates the fourth case hole 164 to connect the fourth electrode fastening member 241. supported at the top,
The first bolt loosening detection member 310 has a first bolt hole 315 formed to penetrate the first detection head 312 and the first detection rod 314, and the first bolt hole 315 ), the first alarm device 1310 is further disposed,
The first bolt hole 315 is formed to pass through the central axis of the first sensing head 312 and the first sensing rod 314,
One end of the first bolt hole 315 is exposed through the first sensing head 312, and the other end is exposed through the first sensing rod 314,
The first alarm device 1310 includes a first alarm rod 1314 that is in contact with the first electrode fastening member 211 and detects the current of the R-phase main bus bar 31, and the first alarm rod ( 1314) and includes a first alarm 1312 exposed outside the first detection head 312,
The first alarm rod 1314 includes a conductive material, and when the first alarm 1312 is electrically disconnected from the R-phase main bus bar 31, it emits light through a built-in battery power source. do,
The second bolt loosening detection member 320 has a second bolt hole 325 formed to penetrate the second sensing head 322 and the second sensing rod 324, and the second bolt hole 325 ), a second alarm device 1320 is further disposed,
The second alarm device 1320 includes a second alarm rod 1324 that is in contact with the second electrode fastening member 221 and detects the current of the S-phase main bus bar 33, and the second alarm rod ( 1324) and includes a second alarm 1322 exposed outside the second detection head 322,
The second alarm rod 1324 includes a conductive material, and when the second alarm 1322 is electrically disconnected from the S-phase main bus bar 33, it emits light through a built-in battery power source. do,
The third bolt loosening detection member 330 has a third bolt hole 335 formed to penetrate the third detection head 332 and the third detection rod 334, and the third bolt hole 335 ), a third alarm device 1330 is further disposed,
The third alarm device 1330 includes a third alarm rod 1334 that is in contact with the third electrode fastening member 231 and detects the current of the T-phase main bus bar 35, and the third alarm rod ( 1334) and includes a third alarm 1332 exposed outside the third detection head 332,
The third alarm rod 1334 includes a conductive material, and when the third alarm 1332 is electrically disconnected from the T-phase main bus bar 35, it emits light through a built-in battery power source. do,
The fourth bolt loosening detection member 340 has a fourth bolt hole 345 formed to penetrate the fourth detection head 342 and the fourth detection rod 344, and the fourth bolt hole 345 ), a fourth alarm device 1340 is further disposed,
The fourth alarm device 1340 includes a fourth alarm rod 1344 that is in contact with the fourth electrode fastening member 241 and detects the current of the N-phase main bus bar 37, and the fourth alarm rod ( 1344) and includes a fourth alarm 1342 exposed outside the fourth detection head 342,
The fourth alarm rod 1344 includes a conductive material, and when the fourth alarm 1342 is electrically disconnected from the N-phase main bus bar 37, it emits light through a built-in battery power source. distribution board. delete delete delete delete

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