Control center

Abstract

To provide a control center capable of suppressing a short-circuit event and preventing contact with a place where electricity flows.SOLUTION: A control device (1) has an operation handle (6) and a wiring circuit breaker (5) that turns ON / OFF in synchronization with ON / OFF of the operation handle (6), and has a latch mechanism (7) having an operation position engaging part (8) that engages with a partition plate (3) in a state where the control device (1) is housed to an operation position of a housing (2). A door (13) has a protruding part (14) protruding toward the control device (1) on a surface facing the control device (1). The protruding part (14) does not abut on the latch mechanism (7) and allows the door (13) to be closed in a state where the operation position engaging part (8) is engaged with the partition plate (3), and abuts on the latch mechanism (7) and disables the door (13) from being closed in a state where the operation position engaging part (8) of the latch mechanism (7) is not engaged with the partition plate (3).SELECTED DRAWING: Figure 10

Description

[Technical Field]

[0001] The present disclosure relates to a control center. [Background technology]

[0002] Generally, distribution boards used in plants and power facilities house multiple functional units in a single panel to suit the load side's application. In these distribution boards, such as control centers, each functional unit is detachably attached, allowing it to be pulled out individually for replacement or repair. When retracted, the contacts on the functional unit automatically electrically connect to the vertical busbars inside the panel. This functional unit is usually equipped with a molded-circuit breaker to safely interrupt the current in the event of a short circuit. This molded-circuit breaker is equipped with an operating handle that has a locking mechanism that prevents the functional unit from being inserted or removed when the molded-circuit breaker is ON.

[0003] Conventionally, a door interlock lever is provided on the operating handle side, and when an attempt is made to rotate the operating handle from OFF to ON while the door is open, the door interlock lever moves to prevent the operating handle from rotating, making it impossible to turn it ON. Conversely, when the door is closed, an interlock fitting engages to restrict the movement of the door interlock lever, making it possible to rotate the operating handle from OFF to ON. Furthermore, the interlock fitting engages with the door interlock lever, making it impossible to open the door (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 3113142 (Fig. 2, Fig. 3) Summary of the Invention [Problem to be solved by the invention]

[0005] In the past, when the door was properly closed, the interlock fitting groove engaged, allowing the operating handle to be turned on. However, if the door was not closed or the functional unit was positioned too far back to close, such as when half of the functional unit was exposed from the housing, the interlock fitting groove did not engage and the operating handle could not be turned on. However, even if the door was not fully closed—for example, if the door was open enough to insert a finger inside the functional unit—if the door was in a position where the tip of the interlock fitting was in contact with the door interlock lever, the movement of the door interlock lever could be restricted, allowing the molded-circuit breaker to be turned on. This was because a gap could occur between the functional unit's contacts and the vertical busbar inside the panel when the molded-circuit breaker was in an incompletely closed state, potentially leading to a short circuit if the molded-circuit breaker was turned on in this state. Furthermore, because the door's operation lock mechanism was not activated in this state, the door could be opened with the molded-circuit breaker on, potentially resulting in the risk of accidentally touching an electrically conductive part (e.g., a live part).

[0006] The present disclosure discloses technology for solving the above-mentioned problems, and aims to provide a control center that can suppress short-circuit events and prevent contact with areas where electricity is flowing. [Means for solving the problem]

[0007] The control center of the present disclosure includes: A control center including a housing and a plurality of control devices housed in the housing, The housing includes a partition plate that separates the control devices; Each of the control devices has an individually installed openable and closable door on the front surface thereof, The control device has an operating handle and a molded case circuit breaker that turns on / off in synchronization with the ON / OFF of the operating handle, The control device a latch mechanism having an operating position engaging portion that engages with the partition plate when the control device is housed in the operating position of the housing; the door has a protrusion on a surface facing the control device that protrudes toward the control device, The protrusion is When the operating position engaging portion of the latch mechanism is engaged with the partition plate, the latch mechanism does not come into contact with the operating position engaging portion, allowing the door to be closed. When the operating position engaging portion of the latch mechanism is not engaged with the partition plate, the latch mechanism comes into contact with the partition plate, preventing the door from being closed. It is something. [Effects of the Invention]

[0008] According to the control center of the present disclosure, It can suppress short circuit events and prevent contact with areas where electricity is flowing. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a perspective view showing the configuration of a switchboard in which a control device according to a first embodiment is housed in an operating position. [Figure 2] 2 is a perspective view showing the configuration of a control device and a door of the switchboard shown in FIG. 1. FIG. [Figure 3] 3A is a plan view showing the configuration of the latch mechanism shown in FIG. 2, and FIG. 3B is a side view of the latch mechanism shown in FIG. 3A as seen from the direction of the arrow GG. [Figure 4] 2 is a plan view showing a partial configuration of a switchboard in an operating position of the control device shown in FIG. 1. FIG. [Figure 5] 5 is a perspective view of the switchboard shown in FIG. 4 as seen from the direction of the arrow EE line. [Figure 6] 5 is a plan view showing the state in which the door of the switchboard configuration shown in FIG. 4 is indicated by a dotted line. [Figure 7] 7 is a front view of the switchboard shown in FIG. 6 as seen from the direction of the CC line arrow. [Figure 8] 6 is a perspective view of the latch mechanism of the switchboard shown in FIG. 5, seen from below. FIG. [Figure 9] 9A is a front view showing the configuration of the latch mechanism shown in FIG. 8, and FIG. 9B is a perspective view showing the configuration of the latch mechanism shown in FIG. 9A. [Figure 10] 2 is a plan view showing a partial configuration of the switchboard, illustrating a case where the control device shown in FIG. 1 moves from an operating position to a test position. FIG. [Figure 11] 11 is a front view of the switchboard shown in FIG. 10 as seen from the direction of the DD line arrow. [Figure 12] 2 is a plan view showing a partial configuration of the switchboard, illustrating a case where the control device shown in FIG. 1 moves from an operating position to a test position. FIG. [Figure 13] 13 is a perspective view of the switchboard shown in FIG. 12 as seen from the direction of the arrow FF line. [Figure 14] 14A is a front view showing the configuration of the latch mechanism shown in FIG. 13, and FIG. 14B is a perspective view showing the configuration of the latch mechanism shown in FIG. 14A. [Figure 15] 2 is a plan view showing a partial configuration of a power distribution board for explaining a case where the control device shown in FIG. 1 is removed from the housing. FIG. [Figure 16] 16 is a front view of the switchboard shown in FIG. 15 as seen from the direction of the arrow BB. [Figure 17] 17A is a front view showing the configuration of the latch mechanism shown in FIG. 16, and FIG. 17B is a perspective view showing the configuration of the latch mechanism shown in FIG. 17A. [Figure 18] FIG. 10 is a plan view showing a partial configuration of a switchboard in an operating position of a control device according to a second embodiment. [Figure 19] 19 is a plan view showing the configuration of the switchboard in a state in which the control device shown in FIG. 18 is pulled out forward from the operating position. [Figure 20] FIG. 10 is a plan view showing a partial configuration of another switchboard in the operating position of the control device according to the second embodiment. [Figure 21] 21 is a plan view showing the configuration of the switchboard shown in FIG. 20 in a state where the control device is pulled out forward from the operating position. FIG. [Figure 22]Figure 22A is a plan view showing a partial configuration of a distribution board of a comparative example, Figure 22B is a plan view showing the configuration when the control device shown in Figure 22A is pulled out forward from the operating position, and Figure 22C is an enlarged view of the circled portion in Figure 22B. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, each embodiment of this disclosure will be described with reference to the drawings. In each drawing, the same reference numerals indicate the same or corresponding parts, and the two-dot chain line indicates the outline of the transparent part.

[0011] Embodiment 1 FIG. 1 is a perspective view showing the configuration of a switchboard in which a control device according to embodiment 1 is stored in an operating position. FIG. 2 is a perspective view showing the configuration of the control device and door of the switchboard shown in FIG. 1. FIG. 3A is a plan view showing the configuration of the latch mechanism shown in FIG. 2, and FIG. 3B is a side view of the latch mechanism shown in FIG. 3A as seen from the direction of the arrow GG. FIG. 4 is a plan view showing a partial configuration of the switchboard in the operating position of the control device shown in FIG. 1. FIG. 5 is a perspective view of the switchboard shown in FIG. 4 as seen from the direction of the arrow EE.

[0012] Fig. 6 is a plan view showing the door of the distribution board configuration shown in Fig. 4 in a dotted line. Fig. 7 is a front view of the distribution board shown in Fig. 6 as seen from the direction of the CC arrow. Fig. 8 is a perspective view of the latch mechanism of the distribution board shown in Fig. 5 as seen from below. Fig. 9A is a front view showing the configuration of the latch mechanism shown in Fig. 8, and Fig. 9B is a perspective view showing the configuration of the latch mechanism shown in Fig. 9A. Fig. 10 is a plan view showing a partial configuration of the distribution board, illustrating the case where the control device shown in Fig. 1 moves from the operating position to the test position.

[0013] Fig. 11 is a front view of the switchboard shown in Fig. 10, seen from the direction of the arrow indicated by the DD line. Fig. 12 is a plan view showing a partial configuration of the switchboard, illustrating the case where the control device shown in Fig. 1 moves from the operating position to the test position. Fig. 13 is a perspective view of the switchboard shown in Fig. 12, seen from the direction of the arrow indicated by the FF line. Fig. 14A is a front view showing the configuration of the latch mechanism shown in Fig. 13, and Fig. 14B is a perspective view showing the configuration of the latch mechanism shown in Fig. 14A.

[0014] Fig. 15 is a plan view showing a partial configuration of a power distribution board for explaining the case where the control device shown in Fig. 1 is removed from the housing. Fig. 16 is a front view of the power distribution board shown in Fig. 15 as seen from the direction of the arrow BB. Fig. 17A is a front view showing the configuration of the latch mechanism shown in Fig. 16, and Fig. 17B is a perspective view showing the configuration of the latch mechanism shown in Fig. 17A.

[0015] As shown in FIG. 1, a distribution board 100 serving as a control center is installed with control devices 1 housed in a housing 2. Although only one control device 1 is shown in FIG. 1, the distribution board 100 is configured to be able to house multiple control devices 1. Partition plates 3 are installed in the housing 2 to separate the control devices 1. Details of the partition plates 3 will be described later. The control devices 1 are installed by moving back and forth within the distribution board 100.

[0016] Here, the front-to-rear direction of the housing 2 is referred to as the front-to-rear direction X, the rear side of the housing 2, i.e., the storage direction, is referred to as the rear side X1, and the front side of the housing 2, i.e., the direction opposite to storage, is referred to as the front side X2, and will be described in each drawing. The control device 1 has a separately installed openable and closable door 13 on the front side. As shown in FIG. 2, the door 13 is provided with an interlock fitting 15 disposed on the side facing the control device 1 and formed at a position facing the molded case circuit breaker 5, and a protrusion 14 formed at a position facing the latch mechanism 7, protruding toward the rear side X1, which is the control device 1 side. The protrusion 14 will be described in detail below.

[0017] As shown in Fig. 2, the control device 1 includes a contact 4, a molded case circuit breaker 5, a latch mechanism 7, and a top plate 18. The latch mechanism 7 will be described in detail later. The contact 4 electrically connects the control device 1 to a main bus provided in the switchboard 100. The molded case circuit breaker 5 protects load equipment provided downstream of the control device 1. The operating handle 6 is attached to the molded case circuit breaker 5 and turns the molded case circuit breaker 5 on and off.

[0018] However, the operating handle 6 can be switched ON / OFF only when the interlock fitting 15 is engaged with the locking lever 16 of the molded case circuit breaker 5, and the operating handle 6 cannot be turned ON when the interlock fitting 15 is not engaged with the locking lever 16 of the molded case circuit breaker 5. The latch mechanism 7 has an operating position engaging portion 8, which will be described later, that engages with the partition plate 3 when the control device 1 is stored in the housing 2 to the operating position.

[0019] Next, the latch mechanism 7 will be described in detail with reference to Figures 3 and 9. The latch mechanism 7 includes a latch plate 71, a rotating shaft 72, and a knob portion 73. The rotating shaft 72 is a rotating shaft that is parallel to the storage direction, i.e., the front-to-rear direction X. The latch plate 71 is provided on the rear side X1 of the rotating shaft 72, and the knob portion 73 is provided on the front side X2 of the rotating shaft 72. Therefore, the latch plate 71 and the knob portion 73 rotate around the rotating shaft 72.

[0020] The latch plate 71 has an operating position engaging portion 8, an operating position-to-test position transition portion 9, and a non-engaging portion 90. The operating position engaging portion 8 is for holding the control device 1 housed in the housing 2 in an operating position state. The operating position-to-test position transition portion 9 is for switching the storage state of the control device 1 housed in the housing 2 between the operating position and the test position. The test position is a position where the control circuit of the control device 1 is tested, and is a position where it is disconnected from the main bus bar of the switchboard 100.

[0021] The non-engagement portion 90 is intended to allow the control device 1 housed in the housing 2 to be pulled out from the housing 2. The knob portion 73 is formed in a generally rectangular parallelepiped shape that protrudes toward the front side X2. The knob portion 73 is formed so that it does not come into contact with the door 13 when the control device 1 is housed and the door 13 is closed. By rotating the knob portion 73, the latch plate 71 can be rotated via the rotation shaft 72.

[0022] When the arrow mark on the knob portion 73 points upward (the latch mechanism 7 is in the ON state), the operating position engaging portion 8 of the latch plate 71 is in the upper position (see FIG. 9). When the arrow mark on the knob portion 73 points leftward, the operating position-test position transition portion 9 of the latch plate 71 is in the upper position (see FIG. 14). When the arrow mark on the knob portion 73 points downward (the latch mechanism 7 is in the OFF state), the non-engaging portion 90 of the latch plate 71 is in the upper position (see FIG. 17).

[0023] Next, details of the partition plate 3 will be described with reference to FIG. 5 . The partition plate 3 has a first engagement hole 10 that engages with the driving position engagement portion 8 of the latch mechanism 7, a second engagement hole 11 that engages with the driving position-test position transition portion 9, and a protrusion 12 that communicates with the first engagement hole 10 and the second engagement hole 11 and through which the driving position-test position transition portion 9 can pass in the axial direction of the rotation shaft 72, i.e., in the front-rear direction X. The first engagement hole 10 is for holding the control device 1 in the driving position. The second engagement hole 11 is for holding the control device 1 in the test position. Therefore, the first engagement hole 10 is formed on the rear side X1 in the front-rear direction X of the second engagement hole 11. The driving position-test position transition portion 9 passes through the protrusion 12 when switching the storage state of the control device 1 between the test position and the driving position.

[0024] As shown in FIG. 5, when the driving position engaging portion 8 is positioned upward, the driving position engaging portion 8 abuts against the protrusion 12 and is shaped so as to be unable to move from the first engaging hole 10 to either the rear side X1 or the front side X2. When the driving position-test position transition portion 9 is positioned upward, the first engaging hole 10, the protrusion 12, and the second engaging hole 11 are movable. However, the non-engaging portion 90 is shaped so as not to be able to move from the second engaging hole 11 to the front side X2. When the non-engaging portion 90 is positioned upward, the non-engaging portion 90 is shaped so as not to engage with any of the first engaging hole 10, the protrusion 12, and the second engaging hole 11.

[0025] Next, the configuration of the protrusion 14 of the door 13 will be described with reference to FIG. 7. The protrusion 14 is formed so that the cross section perpendicular to the front-rear direction X is L-shaped. The portion of the L shape extending in the up-down direction is a vertical portion 141, and the portion extending in the left-right direction is a horizontal portion 142. When attempting to close the door 13, the protrusion 14 does not come into contact with the knob portion 73 when it is in the state shown in FIG. 9. Furthermore, when the knob portion 73 is in the state shown in FIG. 14, the vertical portion 141 of the protrusion 14 comes into contact (see FIG. 11).

[0026] 17, the horizontal portion 142 of the protrusion 14 comes into contact with the knob portion 73 (see FIG. 16). Therefore, when the knob portion 73 is in the state shown in FIG. 9, the protrusion 14 does not come into contact with the knob portion 73, and the door 13 can be closed. When the knob portion 73 is in the state shown in FIGS. 14 and 17, the protrusion 14 comes into contact with the knob portion 73, and the door 13 cannot be closed.

[0027] As described above, the latch mechanism 7, partition plate 3, and protrusion 14 are formed, so that when the operating position engagement portion 8 of the latch mechanism 7 is engaged with the partition plate 3, the protrusion 14 does not abut against the latch mechanism 7, allowing the door 13 to be closed, and when the operating position engagement portion 8 of the latch mechanism 7 is not engaged with the partition plate 3, the protrusion 14 abuts against the latch mechanism 7, making it impossible to close the door 13.

[0028] Next, the storage of the control device 1 in the distribution board 100 of the first embodiment configured as described above will be described. First, a state in which the control device 1 is stored in the operating position of the housing 2 will be described, as shown in Figures 1 and 4. In this state, the latch mechanism 7 is in the ON state, and as shown in Figures 8 and 9, the arrow on the knob portion 73 points upward, and the operating position engaging portion 8 of the latch plate 71 is positioned upward.

[0029] 4 to 6, the operating position engaging portion 8 is engaged with the first engaging hole 10, and the operating position engaging portion 8 abuts against the protrusion 12 on the front side X2 in the front-rear direction X, preventing the control device 1 from moving to the front side X2 and the rear side X1, and fixing the control device 1 in the operating position. At this time, as shown in FIG. 7, the protrusion 14 of the door 13 does not abut against the knob portion 73, allowing the door 13 to be closed. Therefore, when the door 13 is closed, the interlock fitting 15 engages with the lock lever 16 of the molded case circuit breaker 5. This turns the operating handle 6 to the ON state, turning on the molded case circuit breaker 5. This allows the control device 1 to be in an operating state.

[0030] Next, the state in which the control device 1 moves from the operating position of the housing 2 to the test position will be described. First, the operating handle 6 is turned OFF, and the molded case circuit breaker 5 is turned OFF. Then, the door 13 is opened enough to operate the knob portion 73. Next, as shown in FIG. 11, the knob portion 73 is rotated 90 degrees counterclockwise so that the arrow on the knob portion 73 points to the left side of the page. Then, the operating position-test position transition portion 9 of the latch plate 71 is positioned upward (see FIGS. 11 and 14).

[0031] In this state, as shown in Fig. 10, the operating position-test position transition portion 9 is present in the first engagement hole 10. As shown in Fig. 11, the arrow on the knob portion 73 points to the left on the page, so the vertical portion 141 of the protrusion 14 and the knob portion 73 come into contact as shown in Figs. 10 and 11, and the door 13 cannot be put into the closed state. Note that Fig. 10 shows the state in which the control device 1 is in the operating position.

[0032] Next, as shown in Fig. 12, the control device 1 is moved forward to the X2 side and to the test position. Then, the driving position-test position transition portion 9 passes under the protrusion 12 and engages with the second engagement hole 11 as shown in Fig. 13.

[0033] Next, a description will be given of the case where the control device 1 is removed from the housing 2 when the control device 1 is in the operating position. Note that the same procedure can be followed when the control device 1 is in the test position when the control device 1 is removed from the housing 2, and therefore a description thereof will be omitted. First, the operating handle 6 is turned OFF, and the molded case circuit breaker 5 is turned OFF. Then, the door 13 is opened enough to allow the knob portion 73 to be operated. Next, as shown in Figures 15 and 16, the knob portion 73 is rotated 180 degrees so that the arrow on the knob portion 73 points upward and downward on the paper. Note that Figure 15 shows the control device 1 in the operating position.

[0034] As a result, the non-engagement portion 90 of the latch plate 71 is positioned upward (see FIGS. 16 and 17). In this state, as shown in FIG. 15, the non-engagement portion 90 is located at the position of the first engagement hole 10. However, the non-engagement portion 90 is not engaged with the first engagement hole 10. As shown in FIG. 16, the arrow of the knob portion 73 points downward on the paper, so the horizontal portion 142 of the protrusion 14 and the knob portion 73 abut against each other as shown in FIGS. 15 and 16, and the door 13 cannot be closed. Since the non-engagement portion 90 of the latch mechanism 7 is positioned upward, it does not engage with the first engagement hole 10, the second engagement hole 11, or the protrusion 12, so the control device 1 can be removed from the housing 2.

[0035] As described above, when the control device 1 is in the operating position, as shown in Figures 10 and 15, the protrusion 14 abuts against the knob 73 of the latch mechanism 7, so the interlock fitting 15 and the lock lever 16 are at a distance where they do not engage with each other, and the operating handle 6 cannot be turned on. Naturally, when the control device 1 is in the test position, as shown in Figures 12 and 13, the protrusion 14 also abuts against the knob 73 of the latch mechanism 7, so the interlock fitting 15 and the lock lever 16 are at a distance where they do not engage with each other, and the operating handle 6 cannot be turned on. In other words, the door 13 can be closed only when the control device 1 is in the operating position and the control device 1 and the protrusion 14 are not abutting each other, as shown in Figures 4 and 6.

[0036] According to the control center of the first embodiment configured as above, A control center including a housing and a plurality of control devices housed in the housing, The housing includes a partition plate that separates the control devices; Each of the control devices has an individually installed openable and closable door on the front surface thereof, The control device has an operating handle and a molded case circuit breaker that turns on / off in synchronization with the ON / OFF of the operating handle, The control device a latch mechanism having an operating position engaging portion that engages with the partition plate when the control device is housed in the operating position of the housing; the door has a protrusion on a surface facing the control device that protrudes toward the control device, The protrusion is When the operating position engaging portion of the latch mechanism is engaged with the partition plate, the latch mechanism does not come into contact with the operating position engaging portion, allowing the door to be closed. When the operating position engaging portion of the latch mechanism is not engaged with the partition plate, the latch mechanism comes into contact with the partition plate, preventing the door from being closed. So, It can suppress short circuit events and prevent contact with areas where electricity is flowing.

[0037] Furthermore, according to the control center of the first embodiment configured as described above, the latch mechanism has a latch plate that is rotatable about a rotation axis that is parallel to the storage direction of the control device, and a knob portion that rotates the latch plate about the rotation axis and also rotates itself to protrude in a direction opposite to the storage direction, The rotation position of the knob determines whether the protrusion contacts the knob, allowing the door to be opened or closed. So, The latch mechanism can be easily configured.

[0038] Furthermore, according to the control center of the first embodiment configured as described above, the latch plate has the operating position engagement portion and an operating position-test position transition portion; The partition plate has a first engagement hole with which the operating position engagement portion engages, a second engagement hole with which the operating position-test position transition portion engages, and a protrusion that communicates with the first engagement hole and the second engagement hole and through which the operating position-test position transition portion can pass in the axial direction of the rotating shaft. So, The control device can be held in the test position.

[0039] Furthermore, according to the control center of the first embodiment configured as described above, The latch plate has a non-engagement portion that does not engage with any of the first engagement hole, the second engagement hole, and the protrusion. So, The control device can be easily removed from the housing.

[0040] Furthermore, according to the control center of the first embodiment configured as described above, The protruding portion has an L-shaped cross section in a direction perpendicular to the direction in which the control device is stored. So, The protrusion can be easily configured.

[0041] Embodiment 2 Fig. 18 is a plan view showing a partial configuration of a switchboard in the operating position of a control device according to embodiment 2. Fig. 19 is a plan view showing the configuration of a switchboard in a state where the control device shown in Fig. 18 is pulled out further forward than the operating position. Fig. 20 is a plan view showing a partial configuration of another switchboard in the operating position of a control device according to embodiment 2. Fig. 21 is a plan view showing the configuration of the switchboard in a state where the control device of the switchboard shown in Fig. 20 is pulled out further forward than the operating position.

[0042] Fig. 22A is a plan view showing a partial configuration of a distribution board of a comparative example, Fig. 22B is a plan view showing the configuration in a state in which the control device shown in Fig. 22A is pulled out forward from the operating position, and Fig. 22C is an enlarged view of the circled portion in Fig. 22B. In the figures, parts that are the same as those in the above-mentioned first embodiment are given the same reference numerals and omitted. Note that in this second embodiment, the differences from the above-mentioned first embodiment will be mainly described.

[0043] As shown in FIGS. 18 and 19 , door 13 of distribution board 100 in embodiment 2 has a protrusion 17 on the surface facing control device 1 that protrudes toward control device 1, i.e., toward rear side X1. As shown in FIG. 18 , when control device 1 is retracted to the operating position in housing 2, protrusion 17 does not abut control device 1, allowing door 13 to be closed. Therefore, in this state, interlock fitting 15 and lock lever 16 are engaged, allowing operation handle 6 to be turned ON. Also, as shown in FIG. 19 , when control device 1 is in a position other than the operating position in housing 2, i.e., when control device 1 is pulled out toward front side X2 from the operating position, protrusion 17 abuts control device 1, here, top plate 18, preventing door 13 from being closed. Furthermore, protrusion 17 is hat-shaped, allowing easy attachment to door 13.

[0044] As shown in the comparative example, when the control device is pulled out from the operating position of the control device in Fig. 22A to a position X2 forward of the operating position and incompletely inserted to a position X1 rearward of the test position as shown in Fig. 22B, for example, the insulation distance between the vertical busbar on the switchboard and the contactor on the control device side may not be maintained, and an arc may occur. Also, in this position, as shown in Fig. 22C, the interlock fitting and the lock lever may engage, allowing the operating handle to be turned ON.

[0045] However, according to this second embodiment, as shown in FIG. 19, when the protrusion 17 of the door 13 and the top plate 18 of the control device 1 are in contact (position), the door 13 cannot be closed, the interlock fitting 15 and the locking lever 16 are at a distance where they do not engage with each other, and the operating handle 6 cannot be turned ON.

[0046] Furthermore, in the example of the above-mentioned embodiment 2, an example was shown in which a latch mechanism 7 like that of the above-mentioned embodiment 1 is not provided, but this is not limited to this, and as shown in Figures 20 and 21, the same can be done by providing a latch mechanism 7, a first engagement hole 10, a second engagement hole 11 and a protrusion 12 as in the above-mentioned embodiment 1.

[0047] The difference between this embodiment 2 and the above-mentioned embodiment 1 is that in the above-mentioned embodiment 1, the closing of the door 13 is controlled by the protrusion 14 and the latch mechanism 7, whereas in the present embodiment 2, the closing of the door 13 is controlled by the protrusion 17 provided on the door 13.

[0048] According to the control center of the second embodiment configured as above, A control center including a housing and a plurality of control devices housed in the housing, The housing includes a partition plate that separates the control devices; Each of the control devices has an individually installed openable and closable door on the front surface thereof, The control device has an operating handle and a molded case circuit breaker that turns on / off in synchronization with the ON / OFF of the operating handle, the door has a protrusion on a surface facing the control device that protrudes toward the control device, The protrusion is When the control device is housed in the operating position of the housing, the door does not come into contact with the control device and can be closed; When the control device is in a position other than the operating position of the housing, the door abuts against the control device and cannot be closed. So, It can suppress short circuit events and prevent contact with areas where electricity is flowing.

[0049] Furthermore, according to the control center of the second embodiment configured as described above, The protrusion is formed in a hat shape. So, The protrusion can be easily attached to the door.

[0050] While the present disclosure describes various exemplary embodiments and examples, the various features, aspects, and functions described in one or more embodiments are not limited to application to a particular embodiment, but may be applied to the embodiments alone or in various combinations. Therefore, countless variations not illustrated are contemplated within the scope of the technology disclosed in this specification. For example, when at least one component is changed, added, or This also includes cases where at least one component is extracted and combined with a component of another embodiment. [Explanation of symbols]

[0051] 1 control device, 10 first engagement hole, 100 distribution board, 11 second engagement hole, 12 convex portion, 13 door, 14 protrusion, 15 interlock fitting, 16 lock lever, 17 protrusion, 18 top plate, 2 housing, 3 partition plate, 4 contact, 5 molded-case circuit breaker, 6 Operating handle, 7 Latch mechanism, 71 Latch plate, 72 Rotating shaft, 73 Knob portion, 8 Operating position engaging portion, 9 Operating position-test position transition portion, 90 Non-engaging portion, X Forward / backward direction, X1 Rear side, X2 Front side.

Claims

1. A control center including a housing and a plurality of control devices housed in the housing, The housing includes a partition plate that separates the control devices; Each of the control devices has an individually installed openable and closable door on the front surface thereof, The control device has an operating handle and a molded case circuit breaker that is turned on / off in synchronization with the on / off of the operating handle, The control device a latch mechanism having an operating position engaging portion that engages with the partition plate when the control device is housed in the operating position of the housing; the door has a protrusion on a surface facing the control device that protrudes toward the control device, The protrusion is When the operating position engaging portion of the latch mechanism is engaged with the partition plate, the latch mechanism does not come into contact with the operating position engaging portion, allowing the door to be closed. A control center in which the operating position engaging portion of the latch mechanism abuts against the latch mechanism when the operating position engaging portion is not engaged with the partition plate, thereby preventing the door from being closed.

2. the latch mechanism has a latch plate that is rotatable about a rotation axis that is parallel to the storage direction of the control device, and a knob portion that rotates the latch plate about the rotation axis and also rotates itself to protrude in a direction opposite to the storage direction, 2. The control center according to claim 1, wherein the door can be opened and closed by determining whether the protrusion abuts on the knob depending on the rotational position of the knob.

3. the latch plate has the operating position engagement portion and an operating position-test position transition portion; The control center of claim 2, wherein the partition plate has a first engagement hole with which the operating position engagement portion engages, a second engagement hole with which the operating position-test position transition portion engages, and a convex portion that is connected to the first engagement hole and the second engagement hole and through which the operating position-test position transition portion can pass in the axial direction of the rotating shaft.

4. 4. The control center according to claim 3, wherein the latch plate includes a non-engagement portion that does not engage with any of the first engagement hole, the second engagement hole, and the protrusion.

5. 5. The control center according to claim 1, wherein the protruding portion has an L-shaped cross section in a direction perpendicular to the direction in which the control device is housed.

6. A control center including a housing and a plurality of control devices housed in the housing, The housing includes a partition plate that separates the control devices; Each of the control devices has an individually installed openable and closable door on the front surface thereof, The control device has an operating handle and a molded case circuit breaker that is turned on / off in synchronization with the on / off of the operating handle, the door has a protrusion on a surface facing the control device that protrudes toward the control device, The protrusion is When the control device is housed in the operating position of the housing, the door does not come into contact with the control device and can be closed; a control center that abuts against the control device when the control device is in a position other than the operating position of the housing, thereby preventing the door from being closed;

7. 7. The control center according to claim 6, wherein the protrusion is hat-shaped.

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