WO2019212095A1

WO2019212095A1 - Induction motor wiring terminal block

Info

Publication number: WO2019212095A1
Application number: PCT/KR2018/009610
Authority: WO
Inventors: 조영길
Original assignee: (주)영상
Priority date: 2018-05-02
Filing date: 2018-08-21
Publication date: 2019-11-07
Also published as: KR101897090B1

Abstract

The present invention relates to an induction motor wiring terminal block, and an induction motor wiring terminal block comprising an insulator, a base having a plurality of surfaces, and a cover for covering the upper surface of the base further comprises: wiring blocking parts formed to extend at a predetermined length downward from the lower surface of the cover; and wiring connection parts formed to extend at a predetermined length downward from the lower surface of the cover, and positioned with the wiring blocking parts therebetween, wherein the wiring blocking parts and the wiring connection parts are positioned to be biased in the one-end direction of the lower surface of the cover with respect to the central line of the lower surface of the cover.

Description

Induction Motor Wiring Terminal Block

The present invention relates to a 220V / 380V combined induction motor wiring terminal block, when the voltage is changed to 380V to the induction motor operated by applying the 220V voltage, or the voltage to 220V to the induction motor operated by applying a 380V voltage If this is to be changed, the cover mounted on the upper surface of the base is removed from the base and 180 degrees in the horizontal direction, without the inconvenience according to the prior art, which has to terminate the existing connection and switch the connection state to be reconnected. The present invention relates to an induction motor connection terminal block which can be easily switched by connecting to the base upper surface after the rotation.

There are two types of three-phase induction motors that are widely used for industrial and home use: the Y (Y) and the delta (Δ). In the wiping method, the three wires of each phase of the induction motor coil are tied together and the remaining three wires are passed to each phase. It is used when the power supply voltage is a low voltage (eg 220V) in a form-seed manner.

Referring to FIG. 1, in the case of a 220V / 380V combined three-phase induction motor that is supplied with power through the R terminal, the S terminal, and the T terminal, when the supply power voltage is 220V, the delta connection must be made. In the case of this 380V voltage, it must be wired.

As the applied voltage is changed, the wiring state should be switched. In general, the inconvenience of having to terminate the existing wiring and make a new wiring is followed.

Look at Korea Utility Model Publication No. 20-2011-0006685 according to the prior art to solve this problem.

The prior art discloses a connection terminal block of a three-phase induction motor that can easily switch the connection state according to the output voltage of the power supply and is easy to install and manage in an induction motor.

However, according to the prior art, the terminal block structure is still complicated, and in switching the connection state, the existing connection, such as screwing the clamping members of the connecting nodes, forming a new wiring state again, and then screwing the clamping members of the connecting nodes There is still the inconvenience of having to terminate the game and make a new final.

In addition, the cover is attached to the upper surface of the base to cover the upper surface only covers a portion of the upper surface there is a safety problem.

In addition, it is difficult to distinguish whether the current wiring state is 220V voltage or 380V voltage, which may cause confusion during the process of switching the wiring state, and thus an electrical risk may occur.

(Patent Document 1) KR20-2011-0006685 A

In order to solve the above problems according to the prior art, to provide an induction motor connection terminal block that can easily switch the connection state of the three-phase induction motor.

In addition, to provide an induction motor connection terminal block with increased safety in the work in the connection terminal block.

In addition, it is intended to provide an induction motor wiring terminal block that can clearly grasp the voltage of the current supply power, and can clearly grasp the converted voltage even after the wiring state is switched.

Induction motor connection terminal block according to the present invention to solve the problems according to the prior art, the induction motor including a base 100 consisting of a plurality of insulators and a cover 200 covering the upper surface of the base 100 A connection terminal block, comprising: a connection blocking part 260 extending from the lower surface of the cover 200 in a downward direction by a predetermined length; And a connection connection part 280 formed extending from the lower surface of the cover 200 in a downward direction by a predetermined length and positioned with the connection blocking part 260 interposed therebetween, the connection blocking part 260 and The connection connector 280 is positioned to be biased in one direction of the bottom surface of the cover 200 with respect to the center line of the bottom surface of the cover 200.

Preferably, the connection blocking portion 260 is a non-conductor, the connection connection portion 280 is a conductor.

Preferably, the connection blocking unit 260 may include a first connection blocking bar 261 positioned at a predetermined interval from a lower surface of the cover 200; And a second connection blocking bar 262, wherein the connection connector 280 comprises: a first connection connector 281 positioned at a predetermined distance from a lower surface of the cover 200; Second connection connector 282; And a third connection member 283.

Preferably, the first connection node 110 is coupled to the R terminal formed inside the base 100; A second connection node 120 to which an S terminal is coupled; A third connection node 130 to which a T terminal is coupled; A sixth connection node 160 facing the first connection node 110; A fourth connection node 140 facing the second connection node 120; And a fifth connection node 150 facing the third connection node 130, and extending from the sixth connection node 160 toward the fourth connection node 140. Unit 162; A fourth left side contact portion 142-1 extending from the fourth connection node 140 toward the sixth connection node 160; A fourth right side contact portion 142-2 extending from the fourth connection node 140 toward the fifth connection node 150; Further comprising a fifth side contact portion 152 formed extending from the fifth connection node 150 toward the fourth connection node 140, wherein the first connection node 110 and the second connection node ( A first connection blocking part accommodating part 191 positioned between the first and second connection parts; Further comprising a second connection blocking portion receiving portion 192 positioned between the second connection node 120 and the third connection node 130, the cover 200 is on the upper surface of the base 100 In the first state, the first connection blocking bar 261 is positioned between the sixth side contact portion 162 and the fourth left side contact portion 142-1 and the second connection blocking bar ( 262 is positioned between the fourth right side contact portion 142-2 and the fifth side contact portion 152, and the first connection connector 281 is located between the first connection node 110 and the first connection point. The six connection node 160 is connected, the second connection connector 282 connects the second connection node 120 and the fourth connection node 140, and the third connection connector 283. Is connected to the third connection node 130 and the fifth connection node 150, and in the second state in which the cover 200 is mounted on the upper surface of the base 100, the first connection blocking bar 261 to the second connection blocking portion accommodation portion 192. The second connection blocking bar 262 is positioned in the first connection blocking part accommodating part 191, and the first connection connector 281 is positioned above the third connection node 130. A second wiring connector 282 is positioned on the second wiring node 120, the third wiring connector 283 is located on the first wiring node 110, the second state is The cover 200 in one state covers the upper surface of the base 100 in a state where the cover 200 is rotated by 180 degrees.

Preferably, the first node connecting member 113 formed at a predetermined height in a state extending from the first connection node 110 toward the sixth connection node 160; A sixth node connector 163 formed at a predetermined height in a state extending from the sixth connection node 160 toward the first connection node 110; A second node connector 123 formed at a predetermined height in a state extending from the second connection node 120 toward the fourth connection node 140; A fourth node connecting member (143) formed at a predetermined height in a state extending from the fourth connecting node (140) toward the second connecting node (120); A third node connector 133 formed at a predetermined height in a state in which the third connection node 130 extends in the direction of the fifth connection node 150; And a fifth node connector 153 formed at a predetermined height in a state in which the fifth connection node 150 extends from the fifth connection node 150 toward the third connection node 130. The first connection connector 281 is in contact with the first node connector 113 and the sixth node connector 163, and the second connection connector 282 is connected to the second node connector 123. The fourth node connector 143 is in contact with the third wiring connector 283 and the third node connector 133 and the fifth node connector 153.

Due to the above-mentioned problem solving means, when it is necessary to change the voltage to 380V in the state where 220V voltage is applied, the cover is removed from the base, rotated in a horizontal direction of 180 degrees, and then mounted on the upper surface of the base again The wiring can be easily switched to change the voltage. If it is necessary to change the voltage to 220V even when the 380V voltage is applied, the wiring state can be switched so that 220V voltage can be applied by simply removing the cover, rotating the cover, and mounting it on the upper surface of the base.

Furthermore, the cover covers all of the upper surface of the base, thereby increasing the electrical stability.

In addition, it is possible to clearly identify the wiring state suitable for the voltage currently applied, and further, to identify the voltage to be applied according to the changed wiring state even after the wiring state is changed.

1 is a view showing a connection state according to the voltage applied from the 220V / 380V combined induction motor.

Figure 2 is a perspective view of the induction motor connection terminal block of the present invention.

Figure 3 is an exploded perspective view of the induction motor connection terminal block of the present invention.

4 is a view showing a cover in the induction motor connection terminal block of the present invention.

5 is a view showing a base composed of a plurality of insulator in the induction motor connection terminal block of the present invention.

6 is a view showing a state in which the connection state is switched according to the position of the cover mounted on the upper surface of the base of the present invention.

Hereinafter, preferred embodiments of the method according to the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator. Therefore, the definitions of these terms should be made based on the contents throughout the specification.

2 to 5, the induction motor wiring terminal block according to the present invention will be described.

2 to 5, when the cover 200 is mounted on the upper surface of the base 100, the position of the cover 200 and the position of the base 100 are shown to be in a first state to be described later.

In the present invention, 'electrical connection' or 'electrical connection' refers to a connection through which current can flow.

The induction motor connection terminal block according to the present invention includes a base 100 composed of a plurality of insulators and a cover 200 mounted on an upper surface of the base 100 to cover the upper surface of the base 100.

The connection blocking part 260 is formed by extending a predetermined length downward from the lower surface of the cover 200. Similarly, the connection portion 280 is formed by extending a predetermined length downward from the lower surface of the cover 200. The connection connector 280 is positioned with the connection blocking unit 260 interposed therebetween.

The connection blocking unit 260 is provided between the sixth side contact portion 162 and the fourth left side contact portion 142-1 and the fourth when the cover 200 is mounted on the upper surface of the base 100. It is positioned between the right side contact portion 142-2 and the fifth side contact portion 152, or is accommodated in the first connection blocking portion accommodating portion 191 and the second connection blocking portion accommodating portion 192.

The wire (Y) connection or the delta (Δ) connection is made depending on where the connection blocking unit 260 and the connection connection unit 280 are located. Therefore, as the position of the cover 200 mounted on the base 100 is changed, it is possible to switch the connection state from the wire connection to the delta connection or the connection from the delta connection to the wire connection. After removing the cover 200 mounted on the upper surface of the base 100, rotated 180 degrees in the horizontal direction, it is possible to switch the connection state by mounting on the upper surface of the base 100 again.

The connection blocking unit 260 includes a first connection blocking bar 261 and a second connection blocking bar 262 formed extending from the lower surface of the cover 200 in a downward direction by a predetermined length.

The first connection blocking bar 261 and the second connection blocking bar 262 are formed at regular intervals between one end and the other end of the lower surface of the cover 200.

The length of the first connection blocking bar 261 and the length of the second connection blocking bar 262 may be the same.

The interval between the first connection blocking bar 261 and the second connection blocking bar 262 includes a portion where the sixth side contact portion 162 and the fourth left side contact portion 142-1 contact each other, and a fourth portion. The right contact portion 142-2 and the fifth side contact portion 152 may be equal to the distance between the contact portions.

Further, the interval between the first connection blocking bar 261 and the second connection blocking bar 262 may be equal to the interval between the first connection blocking part accommodating part 191 and the second connection blocking part accommodating part 192 to be described later. Can be.

In a first state in which the cover 200 is mounted on the upper surface of the base 100, the first connection blocking bar 261 is disposed between the sixth side contact portion 162 and the fourth left side contact portion 142-1. The second sequence blocking bar 262 is positioned between the fourth right side contact portion 142-2 and the fifth side contact portion 152.

In the second state to be described later, in which the cover 200 is mounted on the upper surface of the base 100, the first connection blocking bar 261 is received and positioned in the second connection blocking part accommodating part 192, and the second connection blocking bar ( 262 is received and positioned in the first connection blocking accommodation portion 191.

That is, the cover 200 of the first state is separated from the upper surface of the base 100, rotated 180 degrees in the horizontal direction, and then mounted on the upper surface of the base 100 to become the second state.

The connection connector 280 is formed to extend from the lower surface of the cover 200 in a downward direction by a predetermined length, and the connection blocking unit 260 described above is positioned between the connection connector 280.

The connection connector 280 is formed at regular intervals on the lower surface of the cover 200. The connection connection part 280 may be formed to extend in a downward direction in a shorter length than the connection blocking part 260, and may be formed to extend in a horizontal direction which is a centerline direction of the lower surface of the cover 200.

The connection connector 280 connects the

node connectors

113, 123, 133, 143, 153 and 163 to be described later, which are positioned at regular intervals in the horizontal direction. Therefore, the cover 200 is extended by a predetermined length in the horizontal direction in a state extending downward by a predetermined length from the lower surface.

Naturally, the length of the connection connector 280 in the horizontal direction may be longer than the length between the

node connectors

113, 123, 133, 143, 153, and 163 facing each other.

The connection connector 280 includes a first connection connector 281, a second connection connector 282, and a third connection connector 283 positioned at regular intervals on the lower surface of the cover 200.

The first connection blocking bar 261 is positioned between the first connection connector 281 and the second connection connector 282, and between the second connection connector 282 and the third connection connector 283. The second connection blocking bar 262 is positioned.

The distance between the first connection connector 281 and the second connection connector 282 and the distance between the second connection connector 282 and the third connection connector 283 are equal to the sixth connection node 160. It may be equal to the interval between the fourth connection node 140 (or the distance between the first connection node 110 and the second connection node 120), and likewise the fourth connection node 140 and the fifth connection node. It may be equal to the interval between the 150 (or the interval between the second connection node 120 and the third connection node 130).

In a first state in which the cover 200 is mounted on the upper surface of the base 100, the connection blocking unit 260 is positioned between the plurality of side contact portions 162, 142-1, 142-2, and 152 so that the sixth connection node 160, Blocks the electrical connection between the fourth connection node 140 and the fifth connection node 150, while the connection connection unit 280 is the first connection node 110 and the sixth connection node 160, the second connection node ( 120 and the fourth connection node 140 and the third connection node 130 and the fourth connection node 150 are electrically connected.

That is, the wiring state is changed from the wire connection state to the delta connection state.

In a second state in which the cover 200 is mounted on the upper surface of the base 100, the connection blocking unit 260 is accommodated and positioned in the connection blocking

unit receiving units

191 and 192. The electrical connection is maintained between the connection node 140 and the fifth connection node 150 to maintain the wire connection state.

The first and second states described above are mounted on the upper surface of the base 100 in the state before and after the cover 200 is rotated 180 degrees.

As the cover 200 is rotated 180 degrees in the horizontal direction, the wiring state is switched. For this purpose, the connection blocking unit 260 and the connection connection unit 280 cover the cover 200 based on the center line of the lower surface of the cover 200. The lower surface is positioned biased in either direction.

For example, when the cover 200 is mounted on the upper surface of the base 100 in a non-rotating state, the connection blocking unit 260 and the connection connection unit 280 are located in the downward direction, and the connection is performed when the cover 200 is rotated 180 degrees. The blocking unit 260 and the connection connector 280 may be located in an upward direction.

If you want to switch to the delta connection while the wire connection is maintained, the cover 200 may be rotated 180 degrees in the horizontal direction and mounted on the upper surface of the base 100 to change the connection state.

The connection breaker 260 is an insulator and the connection connector 280 is a conductor.

When the connection blocking unit 260 is positioned between the plurality of side contact portions 162, 142-1, 142-2, 132, electrical connection between the plurality of side contact portions 162, 142-1, 142-2, 132 is blocked. As a result, the electrical connection of the sixth connection node 160, the fourth connection node 140 and the fifth connection node 150 is cut off. On the other hand, the connection connector 280 electrically connects the plurality of

node connectors

113, 123, 133, 143, 153 and 163 to be described later, and electrically connects the first connection node 110 and the sixth connection node 160, and the second connection node. Electrically connect the 120 and the fourth connection node 140, and electrically connects the third connection node 130 and the fifth connection node 150. Eventually, the wiring status is changed from the Y-delta to the delta-connection.

When the connection blocking unit 260 is accommodated and positioned in the plurality of connection blocking

unit receiving units

191 and 192, electrical connection between the plurality of side contact portions 162, 142-1, 142-2, and 132 is maintained. On the other hand, the connection connection unit 280 is located on the plurality of connection nodes (110, 120, 130), the first connection node 110 and the sixth connection node 160, the second connection node 120 and the fourth connection node ( 140 and the third connection node 130 and the fifth connection node 150 are not electrically connected. As a result, the connection status of the wire connection is maintained.

The base 100 is formed of a plurality of surfaces as an insulator. A plurality of

connection nodes

110, 120, 130, 140, 150, and 160 necessary for connection, a plurality of side contact parts 162, 142-1, 142-2, 132, and a plurality of connection blocking

part accommodating parts

191 and 192 are located on the plurality of surfaces.

Induction motor wiring terminal block according to the present invention is the first connection node 110, R terminal is formed in the inner side of the base 100, the second connection node 120, S terminal is coupled, the third terminal T is coupled The sixth connection node 160 facing the connection node 130, the first connection node 110, the fourth connection node 140 facing the second connection node 120, and the third connection node 130. It further includes a fifth connection node 150 facing.

In addition, the sixth side contact portion 162 extending from the sixth connection node 160 toward the fourth connection node 140 and the sixth connection node 140 extending from the fourth connection node 140 toward the sixth connection node 160. The fourth left contact portion 142-1 and the fourth right contact portion 142-2 extending from the fourth connection node 140 toward the fifth connection node 150, and the fifth connection node 150. The fifth side contact portion 152 is formed to extend in the direction of the fourth connection node 140.

In addition, a position between the first connection blocking portion accommodating part 191, the second connection node 120 and the third connection node 130, which is located between the first connection node 110 and the second connection node 120. The second connection blocking part receiving unit 192 is further included.

In addition, the first connection node 113 formed at a predetermined height in a state extending in the direction of the sixth connection node 160 from the first connection node 110 and the first connection node (6) in the sixth connection node 160. The sixth node connecting member 163 formed at a predetermined height in a state extending in the direction of 110 and the second formed at a predetermined height in a state extending in the direction of the fourth connection node 140 from the second connection node 120. In the fourth node connecting member 143 and the third connecting node 130 formed to have a predetermined height in a state extending in the direction of the second connecting node 120 from the node connecting member 123 and the fourth connecting node 140. In the state extending in the direction of the third node connection body 133 and the fifth connection node 150 formed in a predetermined height in the direction extending to the fifth connection node 150 in the direction of the third connection node 130. It further includes a fifth node connector 153 formed in a height.

Other wiring nodes and terminals required for induction motor wiring are according to the prior art.

The display groove 250 is formed at one side of the cover 200 and the other side thereof, and the base corresponding to the display groove 250 in the first state in which the cover 200 is mounted on the upper surface of the base 100. 220V is displayed on the surface of the 100, and 380V is displayed on the surface of the base 100 corresponding to the display groove 250 in the second state in which the cover 200 is mounted on the upper surface of the base 100. have.

That is, 220V voltage is displayed on one surface of the two surfaces of the

base

100, and 380V voltage is displayed on the other surface of the base 100.

In order to display the current connection state in a state in which the cover 200 is mounted on the upper surface of the base 100, the user can check the connection state displayed on any one surface of the base 100 through the display groove 250. have. When the display shown on one surface of the base 100 through the display groove 250 is 220V voltage, the delta connection is applied with 220V voltage, and when the display is 380V, it is a wire connection where 380V voltage is applied. Display. The convenience of use is increased, and the wiring state can be easily checked, thereby increasing the electrical safety.

It demonstrates with reference to FIG.

FIG. 6 is a view illustrating the cover 200 in a transparent state to show where the connection blocking unit 260 and the connection connection unit 280 are inserted into the base 100 when viewed from above.

In the induction motor connection terminal block according to the present invention, a process of switching the connection state from a wire connection to a delta connection or a delta connection to a wire connection will be described.

6 (b) is a first state in which the cover 200 is mounted on the upper surface of the base 100, the first connection blocking bar 261 is the sixth side contact portion 162 and the fourth left side contact portion The second connection blocking bar 262 is located between the fourth right contact portion 142-2 and the fifth side contact portion 152, and the first connection connector 281 is disposed between the first connection connector 281 and the second connection blocking bar 262, respectively. ) Connects the first connection node 110 and the sixth connection node 160, the second connection connector 282 connects the second connection node 120 and the fourth connection node 140, and A three connection connector 283 connects the third connection node 130 and the fifth connection node 150. It is a state that is changed from WI connection state to delta connection state.

In FIG. 6 (b), the first connection connector 281 is in contact with the first node connector 113 and the sixth node connector 163, and the second connection connector 282 is connected to the second node. The delta connection state is shown while contacting the sieve 123 and the fourth node connector 143 and the third wiring connector 283 is in contact with the third node connector 133 and the fifth node connector 153. Doing.

In FIG. 6, (a) illustrates that the first connection blocking bar 261 is positioned at the second connection blocking part accommodating part 192 in a second state in which the cover 200 is mounted on the upper surface of the base 100. The second connection blocking bar 262 is positioned in the first connection blocking part accommodating part 191, the first connection connector 281 is positioned on the third connection node 130, and the second connection connector 282 is disposed. Located on the second connection node 120, the third connection connector 283 is located on the first connection node (110). The wire connection state is maintained.

The cover 200 in the wire connection state shown in FIG. 6 (a) is removed from the upper surface of the base 100, rotated 180 degrees in the horizontal direction, and then mounted on the upper surface of the base 100. The delta connection is shown in b).

That is, without the inconvenience of having to terminate the connection according to the applied voltage and make a new connection, only the cover 200 is separated from the base 100, the upper surface of the base 100 by rotating in a horizontal direction 180 degrees Can be easily switched from a delta connection to a wire connection or from a wire connection to a delta connection.

In the present specification, the present invention has been described with reference to the embodiments shown in the drawings so that those skilled in the art can easily understand and reproduce the present invention, which is merely exemplary, and those skilled in the art can make various modifications and equivalents from the embodiments of the present invention. It will be appreciated that embodiments are possible. Therefore, the protection scope of the present invention will be defined by the claims.

Claims

In the induction motor connection terminal block comprising a base 100 composed of a plurality of insulators and a cover 200 covering the upper surface of the base 100,

A connection blocking part 260 extending from the lower surface of the cover 200 by a predetermined length in a downward direction; And

Is formed extending from the lower surface of the cover 200 in a downward direction by a predetermined length, including a connection connecting portion 280 is located with the connection blocking portion 260 therebetween,

The connection blocking unit 260 and the connection connection unit 280 are induction motor connection terminal blocks positioned to be oriented in one direction of the lower surface of the cover 200 with respect to the center line of the lower surface of the cover 200.
The method of claim 1,

The connection blocking unit 260 is an insulator, and the connection connection unit 280 is a conductor induction motor connection terminal block.
The method of claim 2,

The connection blocking unit 260 may include a first connection blocking bar 261 positioned at regular intervals from a lower surface of the cover 200; And a second connection blocking bar 262,

The connection connector 280 may include a first connection connector 281 positioned at regular intervals from a lower surface of the cover 200; Second connection connector 282; And a third connection connector 283.
The method of claim 3, wherein

A first connection node 110 to which an R terminal formed inside the base 100 is coupled; A second connection node 120 to which an S terminal is coupled; A third connection node 130 to which a T terminal is coupled; A sixth connection node 160 facing the first connection node 110; A fourth connection node 140 facing the second connection node 120; And a fifth connection node 150 facing the third connection node 130.

A sixth side contact portion 162 extending from the sixth connection node 160 toward the fourth connection node 140; A fourth left side contact portion 142-1 extending from the fourth connection node 140 toward the sixth connection node 160; A fourth right side contact portion 142-2 extending from the fourth connection node 140 toward the fifth connection node 150; Further comprising a fifth side contact portion 152 formed extending from the fifth connection node 150 toward the fourth connection node 140,

A first connection blocking part accommodating part 191 positioned between the first connection node 110 and the second connection node 120; And a second connection blocking part accommodating part 192 positioned between the second connection node 120 and the third connection node 130.

In a first state in which the cover 200 is mounted on the upper surface of the base 100, the first connection blocking bar 261 is connected to the sixth side contact portion 162 and the fourth left side contact portion 142. The second connection blocking bar 262 is located between the first right contact portion 142-2 and the fifth side contact portion 152, and the first connection connector 281 connects the first connection node 110 and the sixth connection node 160, and the second connection connector 282 connects the second connection node 120 and the fourth connection node ( 140, the third connection connector 283 connects the third connection node 130 and the fifth connection node 150,

In a second state in which the cover 200 is mounted on the upper surface of the base 100, the first connection blocking bar 261 is positioned in the second connection blocking part accommodating part 192 and the second connection A blocking bar 262 is positioned at the first connection blocking part accommodating part 191, the first connection connector 281 is positioned on the third connection node 130, and the second connection connector 282 is disposed. ) Is positioned on the second connection node 120, and the third connection connector 283 is positioned on the first connection node 110.

The second state is an induction motor connection terminal block that covers the upper surface of the base 100 in a state in which the cover 200 is rotated 180 degrees in the first state.
The method of claim 4, wherein

A first node connector 113 formed at a predetermined height in a state extending from the first connection node 110 toward the sixth connection node 160; A sixth node connector 163 formed at a predetermined height in a state extending from the sixth connection node 160 toward the first connection node 110; A second node connector 123 formed at a predetermined height in a state extending from the second connection node 120 toward the fourth connection node 140; A fourth node connecting member (143) formed at a predetermined height in a state extending from the fourth connecting node (140) toward the second connecting node (120); A third node connector 133 formed at a predetermined height in a state in which the third connection node 130 extends in the direction of the fifth connection node 150; And a fifth node connector 153 formed at a predetermined height in a state in which the fifth connection node 150 extends in the direction of the third connection node 130.

In the first state, the first connection connector 281 is in contact with the first node connector 113 and the sixth node connector 163, and the second connection connector 282 is connected to the first connection connector 282. In contact with the two-node connector 123 and the fourth node connector 143, the third wiring connector 283 is connected to the third node connector 133 and the fifth node connector 153. Induction motor connection terminal block.