KR100776713B1 - Motor control center comprising a insulated panel with multi-connector - Google Patents

Abstract

A motor control center with a multi-connector type insulating panel is provided to install a plurality of units in a cabinet of the same size by receiving the plurality of units in one unit chamber. A motor control center with a multi-connector type insulating panel includes a plurality of units(10), a plurality of unit receiving chambers(20), a unit insulating panel(50), a multi-connector type insulating panel(60), a vertical bus bar connector, a plurality of distributing bus bars, a plurality of insulating channels, a plurality of secondary connection terminals, a secondary cable(82), a primary plug, and a secondary plug. The plurality of units receive circuit components for controlling a motor. The plurality of unit receiving units receive the plurality of units in a drawer type. The unit insulating panel has a primary jack, a secondary jack, and a tertiary jack at the rear surface. The multi-connector type insulating panel has a plurality of primary, secondary, and tertiary plugs, is made of insulating plastic, and is a combination of a rear insulating plate(61) and a front plug plate(62) which has the size for completely sealing the rear of the unit receiving chamber. The vertical bus bar connector is installed at the rear surface of the rear insulating plate, and is coupled with a plurality of vertical bus bars(23) which are vertically installed at the rear of the cabinet. The plurality of distributing bus bars are integrally coupled with the vertical bus bar connector at the front surface of the rear insulating plate. The plurality of insulating channels are integrally formed to insulate the front of the distributing bus bar. The plurality of secondary connection terminals and cables are horizontally installed at a guide channel formed between the insulating channels. The primary and secondary plugs are inserted into the plurality of primary and secondary jacks, and are formed on the front plug plate to be connected with the plurality of distributing bus bars and connection terminals.

Description

MOTOR CONTROL CENTER COMPRISING A INSULATED PANEL WITH MULTI-CONNECTOR}

1 is a perspective view of a motor control center in which a withdrawal unit according to the prior art is installed;

2 is a partial perspective view of a motor control center in which a withdrawal unit according to the prior art is installed;

3 is a plan view showing a unit accommodation chamber of a motor control center in which a withdrawal unit according to the prior art is installed.

4 is a perspective view showing an example of a motor control center having a multi-connector type insulation panel according to the present invention;

5 is an exploded perspective view illustrating one unit receiving chamber and one drawable unit installed in a motor control center having a multi-connector type insulation panel according to the present invention;

FIG. 6 is a schematic diagram illustrating the coupling relationship between the primary, secondary and tertiary connectors applied to a motor control center having a multi-connector type insulation panel according to the present invention; FIG.

7 is a cross-sectional view showing a specific configuration of a motor control center having a multi-connector type insulation panel according to the present invention;

8 is a perspective view showing a busbar insulation panel according to the present invention;

9 is a perspective view showing a rear surface of the rear insulation plate according to the present invention;

10 is a perspective view showing a front surface of a rear insulation plate according to the present invention;

11 is a perspective view showing the back of the front plug plate according to the present invention;

12 is a partially enlarged perspective view of FIG. 11;

13 is a perspective view showing a front surface of a front plug plate according to the present invention;

14 is a perspective view showing a unit according to the present invention;

15 is an exploded perspective view showing a unit insulating panel according to the present invention;

16 is a perspective view showing a distribution busbar and a busbar connector according to the present invention;

17 is a perspective view showing the structure of the secondary connection terminal according to the present invention.

***** Description of the symbols for the main parts of the drawings ****

1: motor control center 2: cabinet

10 unit 20 unit storage room

21: bus bar accommodating room 23: vertical busbar

40: vertical busbar insulation panel 42: busbar connector socket

43: connector insertion groove 50: unit insulation panel

51: primary side jack 52: secondary side jack

53: tertiary side terminal block 54: fixing groove

55: jack fixing plate 56: fixed rib

57: front cover 60: multi-connector insulation panel

61: rear insulation plate 62: front plug plate

62 ': unit front plug plate 63: busbar connector plug

65: compartment 66: horizontal rib

67: fixed hook 68: connector through groove

69: insulated bulkhead 70: primary connector

71: vertical busbar connector 72: distribution busbar

73: connection bar 80: secondary side connector

81: secondary connection terminal 82: secondary side cable

84: isolated channel 85: guide channel

86: U-shaped connector 90: tertiary connector

91: tertiary side receptacle 92: tertiary side cable

162: primary insertion groove 163: bottleneck

165; Secondary insertion groove 171: connection part

172: incision 173: contact surface

174: circular reinforcement ring 262: primary plug

266 secondary plug C1 primary connector member

C2: secondary connector member C3: tertiary connector member

The present invention relates to a motor control center (MCC) or a power board, and more particularly, to a single unit accommodating chamber through a multi-connector type insulation panel provided with primary, secondary and tertiary connectors. The present invention relates to a motor control center having a multi-connector type insulation panel that can be installed at the same time.

In general, many motors are used in factories and buildings for elevators, heating and heating systems, water supply and sewage, and air conditioning. Since these motors need to be automatically driven or stopped as needed, they are controlled using an electronic switch. When a plurality of electric motors are used in this way, for convenience of management and operation, a motor-only switchboard of a type in which several motor units are integrated in one cabinet is used. Such a motor switchboard is referred to as a motor control panel, a power panel, or a motor control center (MCC). Hereinafter, referred to as a motor control center.

The motor control center (MCC) distributes the low-voltage electricity supplied from the transformer to the motor and monitors and blocks the overcurrent flowing to each motor. For this purpose, the motor control center (MCC) has a number of units equipped with various motor control parts such as voltage drop transformers, current transformers, switchgear, relays, automatic circuit breakers, fuses, timers and electronic over current relays (ECOR). ) Is installed. These units are housed one by one in a unit receiving chamber formed by partitioning the cabinet, which makes the unit detachable from the unit receiving chamber to facilitate repair or replacement of the motor control components.

For example, pulling the unit forward pulls out the primary connector for power supply, and completely removing the unit from the unit receiving chamber also completely disconnects the secondary and tertiary connectors. To this end, each unit accommodation chamber of the motor control center (MCC) and the rear end of the unit is provided with a connector for connecting or disconnecting the primary side, secondary side and tertiary side.

1, 2 and 3 show an example of a motor control center in which a draw-out unit according to the prior art is installed. 1 is a perspective view of a motor control center with a draw-out unit according to the prior art, Figure 2 is a partial perspective view of a motor control center with a draw-out unit according to the prior art, Figure 3 is a motor with a draw-out unit according to the prior art This is a plan view showing the unit storage room of the control center.

Referring to this, in the motor control center 300 in which the draw-out unit according to the related art is installed, a plurality of unit accommodation chambers 400 are installed in one cabinet 200 in multiple stages, and one unit accommodation chamber 400 is provided. ) Is configured to accommodate one unit 100. In addition, one primary side, secondary side and tertiary side connectors are provided between the one unit 100 and the unit accommodation chamber 400.

As shown in FIG. 2, the one unit 100 includes a box having a size that can be accommodated in one unit accommodation chamber 400, and a rear side busbar connector 145 for supplying power and The secondary jack 141 for power supply and the tertiary jack 143 for signal transmission are provided. In addition, the rear side of the unit receiving chamber 400, the vertical bus bar 220 for supplying the primary power, the secondary plug 241 for coupling with the secondary jack 141 for drawing power, and for signal transmission The tertiary side plugs 243 connected to the tertiary side jacks 143 are provided so as to correspond respectively.

Therefore, when the unit 100 is completely pushed into the unit receiving chamber 400, the primary, secondary and tertiary side connectors are connected to each other, and when the unit 100 is removed from the unit receiving chamber 400, the primary, The secondary and tertiary connectors are disconnected. The primary, secondary and tertiary connectors may be selectively connected according to the position of the unit 100 according to the positions of the secondary and tertiary side plugs 241 and 243.

On the other hand, as shown in Figure 2, the front of the unit 100, the switch 111 for turning the motor power on and off, the ammeter 121 for indicating the amount of current flowing in the motor, the operation button for operating the motor control circuit ( 123) and the like. In addition, the bottom of the unit 100 is provided with an electronic switch and a switch 115 for switching between the opening and closing of the motor circuit, and a switch 115 for switching, and a circuit breaker 117 for automatically disconnecting the circuit when an abnormality occurs in the motor circuit. have.

In addition, the cabinet 200 includes a plurality of pillar members 201 and a plurality of bottom plates 250 fixed to the pillar members 201. The unit accommodation chamber 400 is formed between the bottom plate 250 and the bottom plate 25.

Next, referring to FIG. 3, the unit accommodation chamber 400 is sized to accommodate one unit 100, the front of which is open to allow the unit 100 to enter and exit, and the unit accommodation chamber. The rear side of the 100 is provided with a primary side busbar 220, a secondary side plug 241 and a tertiary side plug 243, and the rails for guiding the unit 100 on both sides of the bottom plate 250. 255 is installed. In addition, a cable fixing plate 263 for fixing a cable is provided at the rear of the secondary plug 214 and the tertiary plug 243. In addition, an auxiliary safety door 261 and a rear door 290 are installed at the rear of the cable fixing plate 263 to prevent a safety accident.

As described above, the conventional motor control center MCC installs one unit 100 in one unit accommodation chamber 400. As such, when one unit 100 is installed in the unit accommodating chamber 400, only one primary, secondary, and tertiary side connectors need to be provided, so that the connector structure is very simple.

However, when only one unit is installed in one unit storage room, motors of various capacities are used in factories or buildings, and although small electric motors are possible with small units, all of the motors have the same size regardless of capacity. By allocating the unit, there was a limit to miniaturizing the cabinet of the motor control center.

In other words, the conventional motor control center needs the same unit in proportion to the number of electric motors used in a factory or building, and the cabinet size needs to be increased in proportion to the number of units. There has been a problem of increasing, costs of transportation, installation and management.

The present invention is to solve the problems of the prior art, the main object of the present invention is to allocate a unit of the appropriate size according to the capacity of the motor motor control that can minimize the size of the cabinet and efficiently utilize the internal space of the cabinet To provide a center.

The present invention is to accommodate a plurality of units at the same time in one unit receiving chamber, a primary connector for supplying power to each of the plurality of units, a secondary connector for drawing power from the plurality of units and a plurality of units and each electric motor It characterized in that to provide a multi-connector insulation panel including a tertiary connector for connecting the control signal to transmit.

The present invention also minimizes the size of the cabinet by minimizing the insulation distance between the primary, secondary and tertiary connectors installed in the multi-connector type insulation panel to minimize the distance between phases, and prevents contact with busbars and connectors. It is to provide a motor control center equipped with a multi-connector type insulation panel improved safety and convenience.

In order to achieve the above object, a motor control center (MCC) equipped with a multi-connector type insulation panel according to the present invention includes a plurality of units accommodating a circuit component for motor control and a plurality of units in a drawer manner. In the motor control center consisting of one or more cabinets having a plurality of unit accommodation rooms,

The unit is sized to accommodate a plurality of units simultaneously in one unit receiving chamber, and a unit insulating panel is provided on the rear side with primary, secondary and tertiary jacks;

A multi-connector type insulation panel having a plurality of primary, secondary and tertiary side plugs to which the primary, secondary and tertiary side jacks provided in the unit insulation panel are coupled to the rear of the unit accommodation chamber;

The multi-connector type insulating panel is made of an insulating plastic, and is made of a combination of a rear insulating plate and a front plug plate having a size capable of completely sealing the rear of the unit accommodating chamber;

A vertical busbar connector which is coupled to a plurality of vertical busbars installed vertically in the rear of the cabinet is protruded to the rear of the rear insulation plate;

A plurality of distribution busbars, which are integrally connected to the vertical busbar connector, are installed in parallel in the horizontal direction on a front surface of the rear insulation plate;

A plurality of insulating channels are integrally formed on the rear surface of the front plug plate so as to insulate the front of the distribution busbar, and a plurality of secondary connection terminals and their cables are horizontally installed in the guide channel formed between the insulating channels. ;

The front plug plate is characterized in that the primary and secondary side plugs which are inserted into the plurality of primary and secondary side jacks are formed at positions connectable with the plurality of distribution busbars and connection terminals.

In addition, in a preferred embodiment of the present invention, the unit accommodation chamber is formed in the space between the bottom plate and the bottom plate constituting the cabinet, the open front has a vertical separator to accommodate a plurality of units in the drawer method The bottom plate is provided with a plurality of rails to facilitate the withdrawal of each unit.

The unit has a box shape with an open top, a front plate provided with an operating lever and a handle at the front side, and a unit insulation panel provided with the first, second and third side jacks at the rear, and an inner bottom thereof. Various circuit components are installed in the.

At the rear of the multi-connector type insulation panel, the plurality of vertical busbars are insulated, and the unit receiving chamber and the bus bar receiving chamber are partitioned, and the vertical busbar connectors protruding from the rear side of the rear insulating board are connected to the vertical busbars. The busbar insulation panel in which the busbar socket to be inserted is integrally formed is further installed.

In the present invention, a plurality of horizontal ribs for supporting the distribution busbars are formed in parallel on a front surface of the rear insulating plate, and fixing hooks for fixing the distribution busbars are integrally formed on both sides of the horizontal ribs. And a plurality of connector through-grooves are formed at one side lower end of the rear insulation plate to allow the vertical busbar connector to pass therethrough, and electrically connect the vertical busbar connector inserted into the connector through-groove and the distribution busbars installed on the horizontal ribs. Insulation cover is installed to insulate the connecting bar.

A guide for forming an insulation channel for insulating the distribution busbars on the rear surface of the front plug plate coupled to the rear insulation plate and for disposing a plurality of secondary connection terminals and cables in the horizontal direction therebetween. A plurality of insulating partition walls forming a channel are integrally formed, and the insulating channel passes through a primary insertion groove into which a primary jack to be connected to the distribution busbar is inserted, and a secondary jack is connected to the secondary channel through the guide channel. A secondary insertion groove for penetrating the terminal is penetrated, and a plurality of tertiary receptacles are installed at the upper end of the front plug plate so as to correspond to the tertiary terminal block installed in each unit.

The front plug plate is formed by combining a plurality of unit front plug plates in a lateral direction, and a plurality of primary plugs are installed on one side of each unit front plug plate in a vertical direction, and a second plug is provided on the other side. Multiple pieces are installed in the horizontal direction.

The unit insulating panel includes a jack fixing plate having horizontal fixing grooves and vertical fixing grooves for fixing the plurality of primary jacks and the secondary jacks, and coupled to the jack fixing plates, and fixing the plurality of primary jacks and the secondary jacks. The front cover is formed of a plurality of vertical fixed ribs and horizontal fixed ribs integrally formed, the upper end of the jack fixing plate is provided with a tertiary side terminal block having a plurality of third side jacks.

Hereinafter, a preferred embodiment of a motor control center equipped with a multi-connector type insulation panel according to the present invention will be described in detail with reference to the accompanying drawings.

First, FIG. 4 is a perspective view showing an example of a motor control center having a multi-connector type insulation panel according to the present invention, and FIG. 5 is one installed in a motor control center having a multi-connector type insulation panel according to the present invention. 6 is an exploded perspective view illustrating a unit accommodation chamber and one pull-out unit, and FIG. 6 illustrates a coupling relationship between primary, secondary and tertiary connectors applied to a motor control center having a multi-connector type insulation panel according to the present invention. 7 is a cross-sectional view showing a specific configuration of a motor control center equipped with a multi-connector type insulation panel according to the present invention.

First, as shown in FIG. 4, the motor control center 1 according to the invention consists of one or more cabinets 2. In the cabinet 2 according to the present invention, a plurality of unit accommodation chambers 20 are divided up and down, and one or two to four units 10 are simultaneously accommodated in the one unit accommodation chamber 20. do.

The cabinet 2 is a metal box in the form of a box. A plurality of unit accommodation chambers 20 are partitioned up and down on a front side thereof, and a bus bar accommodation chamber 21 is formed on a rear side thereof. The width of the unit accommodation chamber 20 approximately coincides with the width of the cabinet 2. The length of the unit accommodation chamber 20 is approximately equal to the length of the unit 10.

The unit 10 according to the present invention has a size capable of accommodating several small units 10 in one unit accommodation chamber 20 at the same time. That is, the conventional unit has the same width as the unit storage chamber, but the unit 20 according to the present invention is reduced to a size of 1/2 to 1/4 of the width of the unit storage chamber. Therefore, the present invention can install more units 10 in the cabinet 2 of the same size. On the contrary, the size of the cabinet 2 required to control the same number of electric motors can be minimized. By reducing the size of the cabinet 2 as described above it is possible to reduce the cost of transportation, installation and management of the motor control center.

Referring to FIG. 5, the unit 10 has a rectangular box shape with an open upper portion, and a front plate 11 is installed at a front surface thereof. The front panel 11 is provided with a switch button 12 for turning on / off the electric power of the motor, an operation lever 13 for opening or closing the locking device, or controlling the breaker, and a handle 14 for mounting or drawing the unit. . In addition, the unit 10 includes a bottom plate having a plurality of through holes and left and right side walls, and the bottom plate has an electronic switch for preventing the opening and closing of the motor circuit and an overload, a magnet for switching, and an abnormality in the motor circuit. Various motor control circuit components (A), such as a circuit breaker that automatically cuts off the circuit and a measuring instrument for measuring the current and voltage of the power supply, are installed. The type and number of the motor control circuit component (A) may vary depending on the capacity of the motor. The motor control circuit component A is well known in the art and is not directly related to the technical idea of the present invention, and thus detailed description thereof will be omitted.

In addition, a unit insulation panel 50 having a primary jack and a secondary jack is installed on the rear surface of the unit 10. As shown in FIG. 15, the unit insulating panel 50 is formed of a combination of a jack fixing plate 55 made of an insulating plastic material and a front cover 57. The jack fixing plate 55 is provided with fixing grooves 54: 154 and 254 through which the primary and secondary jacks 51 and 52 pass, and the front cover 57 is provided with the primary and secondary jacks 51. 52 and fixing ribs 56: 156, 256 for fixing the cable are integrally formed. The tertiary side terminal block 53 is installed at the upper end of the jack fixing plate 55.

Subsequently, the unit accommodation chamber 20 is formed in the space between the bottom plates 25 constituting the cabinet 2 as shown in FIG. 5. The front surface of the unit accommodating chamber 20 is open, and a plurality of vertical separators 26 are installed to separately accommodate the plurality of small units 10. In addition, the bottom plate 25 is provided with a plurality of rails 27 to facilitate the withdrawal of the unit 10.

In addition, a bus bar accommodating chamber 21 is formed at the rear of the unit accommodating chamber 20. In the bus accommodating chamber 21, a horizontal bus bar (not shown) and a vertical bus bar 23 for supplying power are provided. Is installed. Preferably, as shown in FIG. 5, a fixing plate 22 is installed at one side of the bus bar accommodating chamber 21, and a tip of the secondary cable 82 and the tertiary side cable 92 is connected to the fixing plate 22. Secondary and tertiary side terminal blocks 83 and 93 are installed. Thus, each motor is connected via the secondary and tertiary side terminal blocks 83 and 93.

6 is a conceptual diagram showing the structure of the primary, secondary and tertiary connectors according to the present invention. As shown in the drawing, at the rear of the draw-out unit 10 and the unit accommodating chamber 20, a primary side for supplying power supplied through the plurality of vertical busbars 23 to the plurality of units 10. Communication of a control signal by connecting a connector member C1, a secondary connector structure C2 for transmitting power drawn from the plurality of units 10 to each motor, and the plurality of units 10 and each motor A tertiary connector structure (C3) is provided that enables this.

The primary connector structure (C1) includes a plurality of vertical bus bars (23) which are supplied with power from the outside;

A plurality of vertical busbar connectors 71 connected to the vertical busbars 23 and a plurality of distribution busbars 72 connected to the vertical busbar connectors 71 to distribute power to the plurality of units 10. A primary connector (70) consisting of;

 It is composed of a primary jack 51 installed on the rear of the unit 10 so as to be connectable to the distribution busbar 72.

The secondary connector structure C2 includes a plurality of secondary jacks 52 provided in the unit 10;

A plurality of secondary side connection terminals 81 provided to be connectable with the secondary side jacks 52 installed in the plurality of units 20 and a secondary side cable 82 connected to one side of the secondary side connection terminals 81. It is composed of a secondary connector (80) comprising a).

The tertiary side connector structure C3 further includes a tertiary side terminal block 53 provided in the unit 10;

Tertiary connector including a plurality of tertiary side receptacles 91 connected to tertiary side terminal blocks 53 installed in the plurality of units 20 and tertiary side cables 92 connected to the tertiary side receptacles 91. It consists of 80.

6 and 7, the vertical busbar insulation panel 40 is installed on the vertical busbar 23, and the unit insulation panel 50 is installed on the rear surface of the unit 10. A multi-connector type insulating panel 60 is installed between the vertical busbar insulating panel 40 and the unit insulating panel 50. The vertical busbar insulating panel 40 supports a plurality of vertical busbars 23 and separates and insulates the bus bar accommodating chamber 21 and the unit accommodating chamber 20. The unit insulation panel 50 is provided with primary and secondary side jacks 51 and 52 and tertiary side terminal blocks 53, respectively.

The multi-connector type insulation panel 60 includes a primary connector 70 for distributing and transferring power supplied through the vertical bus bar 23 to the plurality of units 10, and is drawn out from the plurality of units 10. A secondary connector 80 and a tertiary connector 90 for connecting a power supply and a control signal to each electric motor are provided.

The vertical busbar insulating panel 40, the multi-connector type insulating panel 60, and the unit insulating panel 50 are all injection molded articles made of an insulating plastic material, and fix the busbar, the connector, and the connecting terminal. The insulation distance between each phase is minimized by forming an insulating partition between each busbar, connector, and connecting terminal.

Hereinafter, a preferred embodiment of the multi-connector type insulation panel 60, the vertical busbar insulation panel 40, and the unit insulation panel 50 according to the present invention will be described in detail with reference to FIGS. 8 to 17. do.

First, Figure 8 is a perspective view showing a busbar insulating panel 40 according to the present invention. As shown, the busbar insulating panel 40 has a structure surrounding a plurality of vertical busbars 23 installed in the vertical direction. The busbar insulation panel 40 is installed between the vertical pillars of the cabinet 2 to completely separate the unit accommodation chamber 20 and the bus bar accommodation chamber 21. Therefore, even if the auxiliary safety door is not separately installed in the bus accommodating chamber 21, the user is prevented from contacting the busbar 23.

As shown, the busbar connector socket 42 is coupled to a plurality of busbar connectors 71 protruding from the rear of the multi-connector type insulation panel 60 to be described later on the front of the busbar insulating panel 40. It is formed integrally. Preferably, the busbar connector socket 42 has a connector inserting groove 43 into which the busbar connector 71 is inserted, which is formed up and down, so that the busbar connector 71 can be installed alternately up and down. In addition, the connector insertion groove 43 is surrounded by the partition wall 44 to minimize the insulation distance between the busbar connector 71.

Next, the multi-connector type insulation panel 60 will be described with reference to FIGS. 9 to 13. 9 and 10 are perspective views showing the rear and front surfaces of the rear insulation plate 61 according to the present invention, respectively, and FIGS. 11 to 13 are perspective views showing the rear and front surfaces of the front plug plate 62 according to the present invention. .

As shown in the drawing, the multi-connector type insulation panel 60 is composed of the rear insulation plate 61 and the front plug plate 62. The width of the rear insulation plate 61 and the front plug plate 62 is the same as a whole. Preferably, the front plug plate 62 is formed by combining a plurality of unit front plug plates 62 'corresponding to the size of one unit 20 laterally.

By configuring the front plug plate 62 with a plurality of unit front plug plates 62 ′, the number of units 10 installed in one unit accommodation chamber 20 can be adjusted. For example, when two units 10 are to be accommodated in one unit storage chamber 20, two unit front plug plates 62 ′ are combined and four units are stored in one unit storage chamber 20. When accommodating 10, four unit front plug plates 62 'are combined. At this time, the width of the unit front plug plate 62 'is equal to the width of the unit 10.

Referring back to FIG. 9, a busbar connector plug 63 coupled to the busbar connector socket 42 is protruded from a lower rear side of the rear insulation board 61 according to the present invention. The busbar connector plug 63 is formed in a rectangular shape protruding backward to be inserted into and coupled to the outer circumference of the busbar connector socket 42. In addition, the inside of the busbar connector plug 63 may install a plurality of vertical and horizontal partitions 64 to partition a plurality of compartments 65 in which a plurality of busbar connectors 71 may be installed in two upper and lower stages. Therefore, the busbar connector 71 can be installed alternately up and down, so that the insulation distance between each busbar connector 71 can be minimized.

An example of the busbar connector 71 according to the invention is shown in FIG. 16. The busbar connector 71 has a flat knife-shaped connecting portion 171 to be inserted into the connector insertion groove 43 in the horizontal direction. A cutout 172 is formed in the front center of the connecting portion 171 so that the vertical busbar 23 is inserted, and contacting both sides of the cutout 172 is in contact with both side surfaces of the vertical busbar 23. A contact surface portion 173 for widening the surface is provided below. In addition, both ends of the circular reinforcing ring 174 across the rear of the cutout 172 are integrally coupled to the outer surface of the contact surface portion 173. The circular reinforcing ring 174 provides a close contact with the vertical busbar 23 by applying an elastic force to press the contact surface portion 173 inward.

Subsequently, as shown in FIG. 10, the front surface of the rear insulation plate 61 is bent inward to form a predetermined space therein. In addition, a plurality of distribution busbars 72 connected to the busbar connector 71 are provided on the inner surface of the rear insulation plate 61 in parallel in the horizontal direction.

The distribution busbar 72 is a metal bar having a rectangular cross section and is positioned on a horizontal rib 66 having a predetermined height integrally formed with the rear insulation plate 61, and the distribution ribs are disposed at both ends of the horizontal rib 66. The fixing hook 67 which prevents detachment of the busbar 72 is integrally formed. In addition, a connector through groove 68 for penetrating the plurality of busbar connectors 71 is formed at a predetermined interval at a lower left side of the rear insulation plate 61. Preferably, the connector through hole 68 is formed up and down alternately.

In addition, a connection bar 73 connecting the bus bar connector 71 inserted into the connector through hole 68 and the distribution bus bar 72 installed in the horizontal direction on the front surface of the rear insulation plate 61. Connection bar insulation cover 75 for covering and insulated is installed. In this case, the connection bar insulation cover 75 is formed in a channel shape to surround the connection bar 73. In addition, the connection bar insulating cover 75 is made of a prefabricated to facilitate the installation of the distribution busbar 72.

Again, referring to FIG. 16, the busbar connector 71 is integrally formed with a connection bar 73 for mechanically and electrically connecting the knife connecting portion 171 and the distribution busbar 72. The connection bar 73 is bent in various shapes and lengths according to the distance between the connector through hole 68 and the distribution bus bar 72.

Referring to FIG. 10 again, a plurality of coupling grooves and guides for guiding the front plug plate 62 to be described later are formed at upper and lower bent portions of the rear insulating plate 61. One side of the rear insulation plate 61 is opened to allow the above-described secondary cable 82 and the tertiary cable 92 to be installed outward.

11 is a perspective view illustrating a rear surface of the front plug plate 62 coupled to the rear insulation plate 61. As shown, the front plug plate 62 is formed by combining a plurality of unit front plug plates 62 'in the lateral direction.

The front plug plate 62 has the same size as the rear insulation plate 61, and a coupling hook and a guide groove corresponding to the coupling groove and the guide portion of the rear insulation plate 61 are formed at upper and lower edges thereof. Therefore, the front plug plate 62 is inserted into and coupled to the rear insulation plate 61.

An insulating partition 69 is integrally formed on the rear surface of the front plug plate 62 so as to be in contact with the upper and lower surfaces of the distribution bus bar 72 described above. The insulating partition 69 is a vertical wall having a predetermined height. The two adjacent insulating partitions 69 form an insulating channel 84 into which the distribution busbars 72 are inserted. The front portion of the distribution busbar 72 is inserted into the insulating channel 84. In addition, a guide channel 85 is formed between a space between the insulating channels 84 provided at regular intervals, that is, between the insulating partition walls 69 constituting the adjacent insulating channels 84. The guide channel 85 is provided with a secondary connection terminal 81 and a secondary cable 82 in the longitudinal direction.

Accordingly, a plurality of distribution busbars 72, a plurality of secondary connection terminals 81, and a secondary cable 82 are alternately arranged in parallel in the rear surface of the front plug plate 62. At this time, the distribution bus bar 72, the secondary side connecting terminal 81 and the secondary side cable 82 is electrically insulated by the insulating partition wall (69).

Meanwhile, a primary side insertion groove 162 is inserted into the front plug plate 62 to insert a primary side jack 51 protruding from the rear side of the unit 10 to contact the distribution bus bar 72. It is. As shown in the enlarged perspective view of FIG. 12, the primary insertion groove 162 is formed in a box shape on the outer side of the insulating partition wall 69 forming the insulating channel 84. In the insulating partition 69 forming the inner wall of the primary insertion groove 162, the primary jack 51 is completely opened to contact the side of the distribution busbar 72.

In addition, in an enlarged perspective view of FIG. 12, a bottleneck 163 is formed on the guide channel 85 to fix the secondary side connection terminal 81 (see FIG. 17). The bottleneck part 163 is formed so as to protrude the two insulating partitions 69 inward to fix the secondary connection terminal 81 positioned therebetween. In addition, the bottleneck part 163 has a secondary insertion groove 165 into which the secondary jack 52 is inserted.

In the figure, the secondary insertion grooves 165 have two inverted box shapes and are spaced apart from each other by left and right sides. At this time, the inner side of the box, that is, the portion where the U-shaped connecting portion 86 of the secondary connecting terminal 81 is inserted, is fully opened so that the secondary terminal 52 contacts the left and right sides of the U-shaped connecting portion 86. have.

As shown in FIG. 17, the secondary connection terminal 81 is made of a conductive metal, and is formed by bending a U-shaped connection portion 86 at the front end thereof, and a rear end thereof is fixed to fix the secondary cable 82. A ring is formed. Therefore, the two secondary insertion grooves 165 formed in the guide channel 85 are penetrated by a predetermined distance to the left and right sides so as to be located at both sides of the U-shaped connecting portion 86.

The structure of the primary insertion groove 162 and the secondary insertion groove 165 can be clearly seen with reference to FIG. As shown, FIG. 13 shows the front side of the front plug plate 62. The front plug plate 62 is formed by combining a plurality of unit front plug plates 62 'in a lateral direction, and one side of each unit front plug plate 62' has a primary plug 262 in a vertical direction. It is installed. The primary plug 262 has a square plug edge 264 integrally formed to guide the jack edge 58 formed around the primary jack 51 and two primary insertion grooves 162 therein. ) Is formed. At this time, neighboring primary side plugs 262 are staggered from each other to minimize the phase separation distance between the primary side jacks 51.

On the other side of each unit front plug plate 62 ', secondary plugs 266 are provided in the horizontal direction. At this time, the secondary plug 266 is also integrally formed with a square plug edge 268 so as to guide the jack edge 59 of the secondary jack 52, and there are two secondary insertion grooves 165 therein. ) Is formed. At this time, the neighboring secondary plugs 266 are alternately provided. As described above, the present invention may be formed by forming the primary plug 262 and the secondary plug 266 so as to be perpendicular to each other, thereby preventing the other side jack from being inserted.

11 and 13, a plurality of tertiary side receptacles 91 are installed at an upper end of each unit front plug plate 62 ′. And the rear side of the receptacle 53 is provided with a plurality of strands of the tertiary side cable 92.

Referring back to FIGS. 14 and 15, the unit insulating panel 50 is formed by combining a jack fixing plate 55 made of an insulating plastic material and a front cover 57. The jack fixing plate 55 is provided with fixing grooves 54: 154 and 254 through which the primary and secondary jacks 51 and 52 pass, and the front cover 57 is provided with the primary and secondary jacks 51. 52 and fixing ribs 56: 156, 256 for fixing the cable are integrally formed. The tertiary side terminal block 53 is installed at the upper end of the jack fixing plate 55.

 And the front of the jack fixing plate 55 is formed to protrude jack edges 58, 59 around the fixing groove 54. The jack edges 58 and 59 may be coupled to the plug frame 264 and 268 of the rectangular frame shape formed on the front plug plate 62, respectively.

On the other hand, the fixing rib 56 formed on the front cover 57 is composed of a vertical fixing rib 156 for fixing the primary jack 51 and a horizontal fixing rib 256 for fixing the secondary jack 52. As shown, the primary jack 51 has a knife connecting portion 151 vertically upright, and the secondary jack 52 has a knife connecting portion 152 horizontally laid down. Accordingly, the vertical fixing rib 156 is vertically formed with a coupling slit to which the rear end of the knife connecting portion 151 is coupled, and the horizontal fixing rib 256 has a horizontal coupling slit to which the rear end of the knife connecting portion 152 is coupled. Is formed. In addition, the fixing rib 56 is formed with an opening for guiding the lower end of the cable connected to the jacks (51) (52).

As described above, the motor control center provided with the multi-connector type insulation panel according to the present invention has a multi-connector type insulation panel on the front surface of the busbar insulation panel 40 provided at the rear of one unit accommodation chamber 20. A plurality of units (60) are installed so that the connection between the vertical bus bar 23 and the bus bar connector 71 is made, and the unit insulating panel 50 is installed on the front of the multi-connector type insulating panel 60 ( 10) The primary jack 51, the secondary jack 52, and the tertiary side terminal block 53 provided on each unit insulating panel 50 are pushed into and received to form the multi-connector type insulating panel 60. Connection to the primary side plug 262, secondary side plug 266 and tertiary side receptacle 81 allows primary, secondary and tertiary side connector couplings to be achieved.

That is, the unit 10 is pushed into the unit receiving chamber 20 of the cabinet 2 so that the primary jack 51, the secondary jack 52, and the tertiary side terminal block 53 are connected to the multi-connector type insulation panel. When connecting to the distribution busbar 72, the secondary side connecting terminal 81 and the tertiary side receptacle 91 provided at 60, the primary connector member C1 is connected to the multi-connector type insulating panel 60. It is connected to the vertical bus bar 23 through the bus bar connector 71 installed at the rear to receive power. The secondary connector member C2 transmits driving power to each electric motor connected to the secondary terminal block 83. In addition, the tertiary connector member C3 enables communication with each electric motor connected to the tertiary side terminal block 93. On the other hand, when the motor control parts accommodated in the unit 10 are broken down and need repair or replacement, the corresponding unit 10 can be safely and easily performed by separating only the corresponding unit 10 from the unit accommodating chamber 21. have.

As described above, the motor control center provided with the multi-connector type insulation panel according to the present invention can be assigned a unit of a suitable size according to the capacity of the motor by accommodating a plurality of units in one unit storage chamber It is effective to minimize the size of or to install a large number of units inside the cabinet of the same size.

The present invention also provides a control signal by connecting a plurality of units and respective motors to a primary connector for supplying power to a plurality of units, a secondary connector for transferring power drawn from the plurality of units to each motor, and a plurality of units. By installing an insulation panel for a multi-connector including a tertiary connector for transmitting the rear side of the unit accommodation chamber, a plurality of units can be installed in one unit accommodation chamber.

The present invention also minimizes the size of the cabinet by minimizing the insulation distance between the busbar and each connector by using a vertical busbar insulation panel and a multi-connector type insulation panel installed at the rear of the unit accommodation chamber, and the operator is a busbar. And preventing contact with the connector to improve safety and convenience.

Motor control center with a multi-connector type insulation panel according to the present invention is light and short compared to the conventional MC can be very advantageously installed in small buildings, especially in places where the installation space is narrow, as well as large buildings, assembly This has a good and convenient effect.

Claims (11)

 A motor control center comprising a plurality of units for holding circuit components for controlling an electric motor and at least one cabinet having a plurality of unit accommodation rooms for receiving the plurality of units in a drawer manner, The unit is sized to accommodate a plurality of units simultaneously in one unit receiving chamber, and a unit insulating panel is provided on the rear side with primary, secondary and tertiary jacks; A multi-connector type insulation panel having a plurality of primary, secondary and tertiary side plugs to which the primary, secondary and tertiary side jacks provided in the unit insulation panel are coupled to the rear of the unit accommodation chamber; The multi-connector type insulating panel is made of an insulating plastic, and is made of a combination of a rear insulating plate and a front plug plate having a size capable of completely sealing the rear of the unit accommodating chamber; A vertical busbar connector which is coupled to a plurality of vertical busbars installed vertically in the rear of the cabinet is protruded to the rear of the rear insulation plate; A plurality of distribution busbars, which are integrally connected to the vertical busbar connector, are installed in parallel in the horizontal direction on a front surface of the rear insulation plate; A plurality of insulating channels are integrally formed on the rear surface of the front plug plate so as to insulate the front of the distribution busbar, and a plurality of secondary connection terminals and their cables are horizontally installed in the guide channel formed between the insulating channels. ; The front plug plate is provided with a multi-connector type insulation panel, characterized in that the primary and secondary side plugs inserted into the plurality of primary and secondary side jacks are formed at positions accessible to the plurality of distribution busbars and connection terminals. Motor control center. The method of claim 1, The unit accommodation chamber is formed in a space between the bottom plate and the bottom plate constituting the cabinet, the open front is provided with a vertical divider to accommodate a plurality of units in a drawer manner, the bottom plate of each unit Motor control center with multi-connector type insulation panel with multiple rails to facilitate withdrawal. The method of claim 1, The unit is a multi-connector, characterized in that the upper box is open, the front plate is provided with an operating lever and the handle is installed on the front, the unit insulation panel is installed on the rear, the motor control circuit components are installed on the inner bottom Motor control center with type insulation panel. The method of claim 1, At the rear of the cabinet, a busbar socket is formed which insulates a plurality of vertical busbars, partitions the unit accommodation chamber and the busbar accommodation chamber, and inserts a vertical busbar connector protruding from the rear of the multi-connector type insulation panel. Motor control center with a multi-connector type insulation panel, characterized in that the busbar insulation panel is installed. The method of claim 1, A plurality of horizontal ribs for supporting the distribution busbars are formed in parallel at a predetermined height on a front surface of the rear insulating plate of the multi-connector type insulation panel, and both ends of the horizontal ribs for fixing the distribution busbars located thereon. A fixed hook is formed, and a motor control center having a multi-connector type insulation panel, characterized in that a connector through groove is formed at one side lower end of the rear insulation plate to insert the vertical busbar connector. The method according to claim 1 or 5, On the rear surface of the front plug plate coupled with the rear insulating plate, a plurality of insulating partition walls which are in contact with the upper surface and the lower surface of the distribution busbar are integrally formed to form an insulating channel for insulating the distribution busbar, Motor control center with a multi-connector type insulation panel, characterized in that formed between the plurality of secondary side connection terminals and the guide channel is installed between the insulating channel formed by the. The method of claim 6, The guide channel is formed with a bottleneck for fixing the secondary connection terminal, and the insulation channel passes through a primary jack insertion groove for connecting with the distribution busbar, and the guide channel connects with the secondary connection terminal. Secondary side insertion groove for penetrating, the motor control center with a multi-connector type insulation panel, characterized in that a plurality of tertiary side receptacles are installed on the top of the front plug plate. The method of claim 1, The front plug plate is formed by combining a plurality of unit front plug plates in a lateral direction, and a plurality of primary plugs are installed on one side of each of the unit front plug plates in a vertical direction, and a second plug is left and right on the other side. Motor control center provided with a multi-connector type insulation panel, characterized in that a plurality in the horizontal direction. The method of claim 1, The unit insulating panel includes a jack fixing plate having horizontal fixing grooves and vertical fixing grooves for fixing the plurality of primary jacks and the secondary jacks, and coupled to the jack fixing plates, and fixing the plurality of primary jacks and the secondary jacks. Comprising a plurality of vertical fixing ribs and a horizontal cover is formed of the front cover integrally formed, the upper end of the jack fixing plate is provided with a multi-connector type insulation panel, characterized in that the tertiary side terminal block is provided with a plurality of tertiary side jacks Motor control center. The method of claim 1, The vertical busbar connector includes a flat knife-shaped connection part, a cutout portion formed to insert a vertical busbar in the front center of the connection part, and installed vertically below both sides of the cutout part so as to be in contact with both sides of the vertical busbar. A motor control center having a multi-connector type insulation panel, characterized in that the contact surface portion and a circular reinforcing ring connected at both ends to the outer surface of the contact surface portion and traverse the rear of the cutout portion. The method according to claim 1 or 10, The distribution busbar is a metal bar having a rectangular cross section, and at one side, a connector bar electrically and mechanically coupled to the rear end of the connection part of the vertical busbar connector is formed in a bent shape in a multi-connector type insulation panel. Motor control center equipped.

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