JP6615035B2 - switchboard - Google Patents

Description

  The present disclosure relates to a switchboard.

  Distribution boards such as distribution boards and control boards have, for example, a circuit breaker having a projecting operation switch for opening and closing contacts, and an opening that houses the circuit breaker and faces the front side, as exemplified in Patent Document 1. A box-shaped housing and a door that closes an opening of the housing. A viewing window that opens the operation switch to the front side is formed on the door.

JP 2001-346305 A

  In an environment where multiple switchboards are confined, the protective door on which the observation window is formed is the outermost door in order to save space, and the single door is used because the distance between the switchboards is narrow In order to reduce the space required for opening and closing the door, and to reduce the depth of the switchboard, it is conceivable to form the door in a flat plate shape. It is considered that it is preferable to take some reinforcing means for the flat double door because the rigidity becomes weak.

  However, in the back of the center side end (butt end) among the four sides, there are many cases where a primary side stacked bus bar connected to a circuit breaker and other charged parts are arranged, and the bus bar and the door are constant. It is necessary to separate the distance. If the central side end of the door is bent and reinforced, the door protrudes to the back, so that a separation distance from the bus bar cannot be secured. On the other hand, if the entire door is offset to the near side or a viewing window is formed in the recessed portion as in Patent Document 1, the depth dimension of the switchboard increases.

  The present disclosure has been made paying attention to such problems, and provides a switchboard that achieves both a separation distance from a charging unit such as a bus bar, a door strength, and space saving. It is to be.

  In order to achieve the above object, the present disclosure takes the following measures.

  That is, the switchboard of the present disclosure includes a circuit breaker having an operation switch, a charging unit connected to the circuit breaker, a housing that houses the circuit breaker and the charging unit and has an opening facing the front side, A pair of double doors that have a viewing window that opens the operation switch to the front side and that can close the opening of the housing, and an overlapped portion that is wastefully folded to the back is formed at the center end of the door The overlapping portion is bent forward.

  According to this configuration, the door can be reinforced by the overlapping portion. Furthermore, by bending the overlapping portion forward, the rigidity can be improved by bending forward in addition to the reinforcing effect of the overlapping portion alone, and in addition, the separation distance from the charging portion such as the bus bar inside is ensured. You can also. Therefore, it is possible to achieve both the securing of the separation distance from the charging unit such as the bus bar, the securing of the door strength, and the space saving.

  The switchboard of the present disclosure includes a circuit breaker having an operation switch, a charging unit connected to the circuit breaker, a housing that houses the circuit breaker and the charging unit and has an opening facing the front side, and the operation switch A pair of double doors having a viewing window that opens to the front side and capable of closing the opening of the housing, and only the front and side surfaces of the central side end are provided at the central side end of the door. A metal reinforcing material having an L-shaped cross section for covering is attached.

  According to this structure, since the metal reinforcement is attached to the center side edge part of a door, a door can be reinforced. Furthermore, since the reinforcing material has an L-shaped cross section that covers only the front and side surfaces of the central side end portion of the reinforcing door, it does not protrude from the door to the back, and the distance from the charging unit such as a bus bar inside is increased. It can also be secured. Therefore, it is possible to achieve both the securing of the separation distance from the charging unit such as the bus bar, the securing of the door strength, and the space saving.

  The switchboard of the present disclosure includes a circuit breaker having an operation switch, a charging unit connected to the circuit breaker, a housing that houses the circuit breaker and the charging unit and has an opening facing the front side, and the operation switch A pair of double doors that have a viewing window that opens to the front side and can close the opening of the housing, and are bent to the front side at the center side end of the door and further bent to the left and right sides A state handle is formed.

  According to this structure, a door can be reinforced with a handle part. Further, the handle portion is bent at the center end of the door to the front side and further bent to the left and right sides, and can be used as a handle by putting a finger into the handle portion, so there is no need to attach a handle of a separate member. Furthermore, if the handle is close to the operation switch, it is possible to prevent an erroneous operation such that the shoulder or the like touches and the operation switch is operated unexpectedly. Moreover, since the center side edge part of the door is only bent to the front side, it does not protrude from the door to the back, and a separation distance from a charging part such as a bus bar inside can be secured. Therefore, it is possible to achieve both the securing of the separation distance from the charging unit such as the bus bar, the securing of the door strength, and the space saving.

The perspective view which shows the switchboard of this indication. The front view of a switchboard. AA site | part sectional drawing of FIG. The front view which shows the inside of a switchboard typically. AA site | part sectional drawing of Examples other than the above. AA site | part sectional drawing of Examples other than the above.

  An embodiment of the present disclosure will be described with reference to the drawings.

As shown in FIGS. 1 and 2, the switchboard includes a plurality of circuit breakers 1 having operation switches 10,
A bus bar 50 serving as a charging unit connected to the circuit breaker 1, a housing 2 that houses a plurality of circuit breakers 1 and the bus bar 50 and has an opening 20 facing the front side X 1, and an opening 20 of the housing 2. And a door 3 that can be closed.

  As shown in FIGS. 1 and 3, the operation switch 10 of the circuit breaker 1 can be switched between the on state and the off state in order to open and close the contacts, and is attached to the housing 2 side. Projecting toward the side X1.

  As shown in FIGS. 1 to 3, the housing 2 has a box shape having an opening 20, and includes a circuit breaker 1, a bus bar 50, a top plate portion 21, a back plate portion 22, a side plate portion 23, and a bottom plate portion 24. A space for storing the electrical equipment including the is formed. As shown in FIG. 3, each electrical device (including the circuit breaker 1 and the bus bar 50) constituting the switchboard is attached to the intermediate plate 4, and the intermediate plate 4 is attached to the back plate portion 22.

  As shown in FIGS. 1 to 3, the door 3 is attached to the side plate portion 23 so as to be openable and closable on the front side X <b> 1 of the electric equipment including the circuit breaker 1 and the bus bar 50. The door 3 is formed with a viewing window 30 corresponding to the circuit breaker 1, and the operation switch 10 of the circuit breaker 1 is opened (exposed) from the viewing window 30 to the front side X1. The door 3 is provided to shield the charging part of the internal electrical equipment to ensure safety and improve the appearance. The door 3 is a pair of double doors, so-called kannon doors, with the left and right outer ends as fulcrums and the center side as a free end. As shown in FIGS. 1 and 3, a part of the circuit breaker 1 including the operation switch 10 protrudes to the front side X <b> 1 through the window 30, so that a part of the circuit breaker 1 is connected to the door 3 in the depth direction. overlapping.

  In the present embodiment, as shown in FIG. 3, a bus bar 50 as a charging unit is disposed on the inner side X <b> 2 of the center side end 3 a of the pair of double doors 3. The bus bar 50 is a primary-side stacked type, and is provided together with the circuit breaker 1 on a base portion 40 attached to the intermediate plate 4. The circuit breaker 1 is a plug-in circuit breaker connected in such a manner that the bus bar 50 is inserted. For this reason, as shown to the figure, the circuit breaker 1 and the bus-bar 50 have overlapped in the depth direction (X1-X2). Since a part of the circuit breaker 1 and the door 3 overlap in the depth direction, the bus bar 50 is inevitably disposed at a position close to the door 3.

  As shown in FIG. 3, in order to reduce the depth dimension of the switchboard, the door 3 is preferably flat as a whole. In the present embodiment, the door 3 is formed in at least a flat plate shape from the peripheral portion of the viewing window 30 to the center side end. The door 3 has an upper end, a lower end, and left and right outer ends that are bent inward to form a cylindrical portion and are reinforced. However, since the left and right central ends are close to the bus bar 50, they cannot be reinforced similarly with the cylindrical portion. As shown in FIG. 4, the bus bar 50 is arranged at the center, and the circuit breaker 1 is arranged on the left and right. A copper bar 51 is disposed outside the circuit breaker 1. The bus bar 50 is a primary side to which an external power source is connected, and the copper bar 51 is a secondary side.

  As shown in FIG. 3, an overlapping portion 60 is formed at the center side end of the door 3. The overlapping portion 60 is formed by wastefully folding the sheet metal constituting the door 3 to the back. If the central edge is folded back to the back, it will protrude to the back by the thickness of the plate. The overlapping portion 60 is bent forward. The angle at which the overlapping portion 60 is bent forward is not particularly limited.

  FIG. 5 is given as another example. In FIG. 5, the center side end of the door 3 is also flat. A metal reinforcing member 61 having an L-shaped cross section that covers only the front and side surfaces of the central side end is attached to the central side end of the door 3. In the example of FIG. 5, the metal reinforcing member 61 is made of aluminum, but may be other metals.

  FIG. 6 is another example. A handle 62 is formed at the center side end of the door 3. The handle portion 62 has a center side end portion of the door 3 bent to the front side X1 and further bent to the left and right outer sides. The protrusion amount of the handle portion 62 is set to a size that allows a finger to enter. In this embodiment, it is set to 17 mm, but may be 15 mm or more.

  As described above, the switchboard of the present embodiment includes the circuit breaker 1 having the operation switch 10, the bus bar 50 as a charging unit connected to the circuit breaker 1, and the bus bar 50 as the circuit breaker 1 and the charging unit. A housing 2 having an opening 20 that is housed and facing the front side X1, a pair of double doors 3 having a viewing window 30 that opens the operation switch 10 to the front side X1, and capable of closing the opening 20 of the housing 2. The overlap portion 60 that is wastefully folded back is formed at the center side end of the door 3, and the overlap portion 60 is bent forward.

  According to this configuration, the door 3 can be reinforced by the overlapping portion 60. Further, by bending the overlapping portion 60 forward X1, in addition to the reinforcing effect of the overlapping portion 60 alone, rigidity can be improved by bending forward, and in addition, the distance from the charging portion such as a bus bar inside is increased. It can also be secured. Therefore, it is possible to achieve both securing of the separation distance from the charging unit such as the bus bar 50, securing of the strength of the door 3, and space saving.

  The switchboard according to the present embodiment accommodates a circuit breaker 1 having an operation switch 10, a bus bar 50 as a charging unit connected to the circuit breaker 1, a bus bar 50 as a circuit breaker 1 and a charging unit, and a front side. A housing 2 having an opening 20 facing X1, and a pair of double doors 3 having a viewing window 30 for opening the operation switch 10 to the front side X1 and capable of closing the opening 20 of the housing 2. A metal reinforcing member 61 having an L-shaped cross section that covers only the front and side surfaces of the central side end is attached to the central side end.

  According to this structure, since the metal reinforcement 61 is attached to the center side edge part of the door 3, the door 3 can be reinforced. Furthermore, since the reinforcing member 61 has an L-shaped cross section that covers only the front and side surfaces of the center side end portion of the door 3, it does not protrude from the door 3 and from the charging portion such as the bus bar 50 inside. A separation distance can also be secured. Therefore, it is possible to achieve both securing of the separation distance from the charging unit such as the bus bar 50, securing of the strength of the door 3, and space saving.

  The switchboard according to the present embodiment accommodates a circuit breaker 1 having an operation switch 10, a bus bar 50 as a charging unit connected to the circuit breaker 1, a bus bar 50 as a circuit breaker 1 and a charging unit, and a front side. A housing 2 having an opening 20 facing X1, and a pair of double doors 3 having a viewing window 30 for opening the operation switch 10 to the front side X1 and capable of closing the opening 20 of the housing 2. A grip portion 62 is formed at the center side end portion thereof in a state of being bent to the front side X1 and further bent to the left and right sides.

  According to this configuration, the door 3 can be reinforced by the handle portion 62. Further, the handle portion 62 is bent at the center side end of the door 3 to the front side X1 and further bent to the left and right sides. Since the handle 62 can be used as a handle by inserting a finger, it is necessary to attach a handle of another member. There is no. Furthermore, if the handle 62 is near the operation switch 10, it is possible to prevent an erroneous operation such that the operation switch 10 is unexpectedly operated by touching the shoulder or the like. Moreover, since the center side edge part of the door 3 is only bend | folded to the front side X1, it does not protrude in the back from the door 3, but the separation distance from charging parts, such as the bus-bar 50 inside, can also be ensured. Therefore, it is possible to achieve both securing of the separation distance from the charging unit such as the bus bar 50, securing of the strength of the door 3, and space saving.

  In the present embodiment, a bus bar 50 as a charging unit is arranged on the back side of the center side end of the pair of double doors 3, and the door 3 extends from the peripheral portion of the viewing window 30 to the center side end. It is formed in at least a flat plate shape, and a part of the circuit breaker 1 including the operation switch 10 is disposed at a position where it comes out forward through the viewing window 30.

  According to this configuration, since the charging unit on the back side of the door 3 and the door 3 itself are arranged close to each other, the effect obtained by adopting the above structure becomes more remarkable.

  In the present embodiment, the charging unit is a primary-side stacked bus bar 50, and the circuit breaker 1 is a plug-in circuit breaker that is connected in such a manner that the bus bar 50 is inserted. The bus bar 50 overlaps in the depth direction.

  According to this configuration, since the circuit breaker 1 is a plug-in type, the circuit breaker 1 and the bus bar 50 are overlapped in the depth direction, so that the bus bar 50 is necessarily in the vicinity of the door 3. The effect obtained by adopting the door 3 configuration is further increased.

  The present disclosure is not limited to the above-described embodiments, and various improvements and modifications can be made without departing from the spirit of the present disclosure.

  In the above description, the distribution board has been described as an example of the distribution board. However, the present disclosure can also be applied to the distribution board as the control board.

  In the above example, the bus bar 50 is exemplified as the charging unit, but the charging bar is not limited thereto. Examples of the charging unit include a copper bar 51 and the like. Among these, the plug-in type circuit breaker 1 and the bus bar 50 connected in a state of being inserted into the circuit breaker 1 are preferable examples of application.

DESCRIPTION OF SYMBOLS 1 ... Circuit breaker 10 ... Operation switch 2 ... Housing 20 ... Opening 3 ... Door 30 ... Window 50 ... Busbar (charge part)
60 ... Overlapping part 61 ... Metal reinforcement 62 ... Handle part

Claims (3)

A circuit breaker having an operation switch, a charging unit connected to the circuit breaker, a case housing the circuit breaker and the charging unit and having an opening facing the front side, and opening the operation switch to the front side A pair of double doors having a viewing window and capable of closing the opening of the housing,
A power distribution board in which an overlapped portion folded wastefully to the back is formed at the center side end of the door, and the overlapped portion is bent forward. The charging unit is disposed on the back side of the center side end of the pair of double doors,
The door is formed in at least a flat plate shape from the peripheral portion of the viewing window to the end on the center side,
2. The switchboard according to claim 1, wherein a part of the circuit breaker including the operation switch is disposed at a position that protrudes forward through the viewing window. The charging part is a primary-side stacked bus bar,
The switchboard according to claim 1 or 2 , wherein the circuit breaker is a plug-in type circuit breaker connected in such a manner that the bus bar is inserted, and the circuit breaker and the bus bar overlap in the depth direction.

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