Distribution board

Abstract

To obtain a distribution board that facilitates the wiring of secondary cables between the connector and the cable fixing halter. [Solution] In a distribution board comprising a housing 2 with multiple branch breakers 3 arranged vertically, multiple output connectors 4 arranged vertically so as to be horizontal to the corresponding branch breakers 3, and rod-shaped cable fixing halters for fixing secondary cables 5 connected to the output connectors 4 side by side in the depth direction, the output connectors 4 to which the connected secondary cables 5 are fixed to the same cable fixing halter 7 are arranged with their positions in the depth direction offset from each other so that the cable fixing position 6 on the cable fixing halter 7 to which the secondary cables 5 connected to each output connector 4 are fixed coincides with the position in the depth direction.

Description

Technical Field

[0001] The present invention relates to a distribution board suitable for wiring work of secondary side cables in a housing.

Background Art

[0002] A distribution board that receives electricity and distributes it to each facility includes, inside a housing, a branch breaker that can cut off power supply to each facility, an output connector that connects a secondary side cable for supplying power to each facility provided on the secondary side of the branch breaker, and a cable fixing halter for fixing the secondary side cable connected to the output connector inside the housing.

[0003] Conventionally, in a housing 30, a plurality of branch breakers 31 arranged vertically, a plurality of output connectors 32 arranged in a straight vertical row in the vertical direction so as to be horizontally positioned with respect to the corresponding branch breaker 31, and a fixing portion 34 for fixing the secondary side cables 33 connected to the output connectors 32 and supplying power to each facility side by side in the depth direction of the housing 30 and individually. A rod-shaped cable fixing halter 35 is provided, and a distribution board 36 (see FIG. 5) is known as having been developed by the applicant.

[0004] In the distribution board 36 configured as described above, a plurality of branch breakers 31 are arranged vertically, and output connectors 32 to which secondary side cables 33 for supplying power from each branch breaker 31 to each facility are connected are arranged in a straight vertical row in the vertical direction so as to be horizontally positioned with respect to the corresponding branch breaker 31. Therefore, since the vertical positions of the corresponding branch breaker 31 and the output connector 32 coincide, the operator can easily understand the corresponding relationship, and an effect of high work efficiency can be obtained.

Prior Art Documents

Non-Patent Documents

[0005]

Non-Patent Document 1

[0006] However, in a distribution board 36 configured in this way, when wiring the secondary cables 33 connected to each output connector 32 and fixing them to the cable fixing halters 34, since the output connectors 32 are arranged in a straight line vertically, it is necessary to bend the secondary cables 32 in the depth direction (towards the depth or towards the front) of the housing 30 to match the position of the fixing part 35 so that the secondary cables 33 connected to each output connector 32 can be fixed horizontally in the depth direction of the housing 30 to the cable fixing halters 34 (see Figure 6). Performing such work in a narrow housing is burdensome for the worker and reduces work efficiency.

[0007] Furthermore, secondary cables 33 are generally rigid, and skilled techniques are required to accurately bend and neatly route these rigid secondary cables 33, which may make the wiring work for secondary cables 33 difficult.

[0008] Furthermore, secondary cables 33 are generally rigid, and skilled techniques are required to accurately bend and neatly route these rigid secondary cables 33, which may make the wiring work for secondary cables 33 difficult.

[0009] The object of the present invention is to provide a distribution board that solves the above problems, facilitates the wiring work of secondary cables connected to a connector and fixed to a cable fixing halter, and reduces the load on the connector during the wiring work of secondary cables. [Means for solving the problem]

[0010] To achieve the above objective, the invention described in claim 1 is a distribution board comprising, within a housing, a plurality of branch breakers arranged vertically, a plurality of output connectors arranged vertically so as to be horizontal to the corresponding branch breakers, and rod-shaped cable fixing halters for fixing secondary cables connected to the output connectors horizontally and individually in the depth direction, wherein, among the output connectors, the output connectors to which the connected secondary cables are fixed to the same cable fixing halter are arranged with their positions in the depth direction offset from each other such that the cable fixing position in the cable fixing halter to which the secondary cables connected to each output connector are fixed coincides with the position in the depth direction.

[0011] According to the invention described in claim 1, among the output connectors, the output connectors to which the connected secondary cable is fixed to the same cable fixing halter are arranged with their positions offset in the depth direction from one another such that the cable fixing position in the cable fixing halter to which the secondary cable connected to each output connector is fixed coincides with the position in the depth direction. As a result, the output connector and the cable fixing position in the cable fixing halter are located in a straight line in the left-right direction of the housing. Therefore, in the wiring work of the secondary cable, it is not necessary to bend the secondary cable connected to the output connector in the depth direction while adjusting it to correspond to the cable fixing position in the cable fixing halter, as is done in conventional distribution boards, thereby simplifying the wiring work of the secondary cable and improving work efficiency. Furthermore, the load on the output connector during the wiring work of the secondary cable is reduced, preventing damage to the output connector and thus preventing problems such as connection failure or fire.

[0012] The invention described in claim 2 is characterized in that, among the output connectors described in claim 1, the output connectors to which the connected secondary cable is fixed to the same cable fixing halter are arranged in order from the top toward the front of the housing with their positions shifted in the depth direction.

[0013] According to the invention described in claim 2, among the output connectors, the output connectors to which the connected secondary cable is fixed to the same cable fixing halter are arranged in order from the top, with their positions shifted in the depth direction from the back side to the front side of the housing. Therefore, the secondary cable connected to the upper output connector is always located behind the lower output connector, even when hanging down from the output connector or fixed to the cable fixing halter. This prevents the secondary cable connected to the upper output connector from getting in the way when wiring the lower output connector, thus improving work efficiency. Furthermore, since the secondary cable connected to the front output connector is located below the rear output connector, the front secondary cable does not obstruct the view of the rear output connector, and does not hinder the worker's understanding of the correspondence between the branch breaker and the output connector. [Effects of the Invention]

[0014] As described above, the distribution board according to the present invention provides a distribution board that facilitates the wiring work of connecting the secondary side cable between the connector and the cable fixing halter. [Brief explanation of the drawing]

[0015] [Figure 1] This is a partially omitted perspective view showing an example of an embodiment of the distribution board according to the present invention. [Figure 2] Figure 1 is an explanatory diagram showing the positional relationship between the connector of the distribution board and the cable fixing halter. [Figure 3] This is a perspective view showing the secondary cable routed between the connector and the cable fixing halter. [Figure 4] This is a plan view showing the secondary cable routed between the connector and the cable fixing halter. [Figure 5] This is a partially abbreviated perspective view showing a conventional distribution panel. [Figure 6]It is a plan view showing a state where a secondary cable is wired between a connector of a distribution board shown in FIG. 5 and a cable fixing halter.

Embodiment for Implementing the Invention

[0016] Hereinafter, embodiments for implementing a distribution board according to the present invention will be described in detail with reference to the drawings. FIGS. 1 to 4 show an example of an embodiment of a distribution board according to the present invention. FIG. 1 is a partially omitted perspective view showing the distribution board of this example. FIG. 2 is an explanatory view showing the positional relationship between a connector of the distribution board shown in FIG. 1 and a cable fixing halter. FIG. 3 is a perspective view showing a state where a secondary cable is wired between the connector and the cable fixing halter. FIG. 4 is a plan view showing a state where a secondary cable is wired between the connector and the cable fixing halter.

[0017] The distribution board 1 of this example includes, inside the housing 2, a plurality of branch breakers 3 arranged vertically, a plurality of output connectors 4 arranged vertically so as to be in a horizontal position corresponding to the corresponding branch breakers 3, and a rod-shaped cable fixing halter 7 for fixing the secondary cables 5 connected to the output connectors 4 side by side in the depth direction and individually. And a cable fixing position 6 for fixing the secondary cable 5 to the cable fixing halter 7 is set. In addition, a wire passing hole (not shown) for the secondary cable 5 to pass to the outside of the housing 2 is formed at the bottom of the housing 2. The secondary cable 5 connected to the output connector 4 is fixed to the cable fixing halter 7 and heads downward of the housing 2 and passes to the outside through the wire passing hole (see FIG. 3). Note that the position of the wire passing hole is not limited to this example, and for example, it can also be formed on the top surface of the housing 2. In this case, the secondary cable 5 connected to the output connector 4 is fixed to the cable fixing halter 7 and heads upward of the housing 2 and passes to the outside through the wire passing hole.

[0018] In this specification, the depth direction refers to the direction from the front side to the back side of the housing 2. Also, unless otherwise specified, the vertical direction means the vertical direction of the housing 2, and the horizontal direction means the horizontal direction when the housing 2 is viewed from the front side.

[0019] A plurality of branch breakers 3 are vertically arranged and attached to the front side surface of a rectangular parallelepiped-shaped branch breaker mounting portion 8 provided on the left side of the housing 2. The branch breaker 3 is connected to the corresponding output connector 4 inside the branch breaker mounting portion 8 via wiring (not shown). The branch breaker of the present invention is not particularly limited as long as it can cut off power supply to each facility.

[0020] The cable fixing halter 7 is formed in a rod shape and is attached to the inner surface on the back side of the housing 2 so as to protrude to the front side inside the housing 2. Generally, the number of output connectors provided in the distribution board is larger than the number of secondary cables fixed to one cable fixing halter. Therefore, a plurality of cable fixing halters are attached to the distribution board. In this example, three cable fixing halters 7 are attached in the vertical direction, and their vertical positions are arranged so as to be lower than the lowermost output connector 4 among the output connectors 4 to which the secondary cable 5 fixed to the cable fixing halter 7 is connected (see FIG. 3). By doing so, the secondary cable 5 passed through the wire passing hole formed at the bottom of the housing 2 is bent downward and fixed to the cable fixing position 6 of the cable fixing halter 7. The vertical position of the cable fixing halter 7 is lower than the lowermost output connector 4 among the output connectors 4 to which the secondary cable 5 fixed to the cable fixing halter 7 is connected. When fixing the secondary cable 5 to the cable fixing halter 7, all the secondary cables 5 fixed to the cable fixing halter 7 are bent downward in the same operation. For example, an operation such as bending upward is not involved in the above fixing operation, which reduces the burden on the operator and can prevent an unnecessary load from being applied to the secondary cable 5. Furthermore, in this example, the cable fixing halters 7 are arranged in a lateral direction, shifted sequentially from top to bottom, from right to left, with a spacing greater than the diameter of the secondary cable 5. This arrangement prevents the secondary cable 5 fixed to the upper cable fixing halter 7 from interfering with the secondary cable 5 fixed to the lower cable fixing halter 7. Note that the number and arrangement of cable fixing halters are not limited to this example and will be changed according to the location of the cable entry point, the size of the housing, the number of output connectors, etc. For example, if the cable entry point is formed on the top surface of the housing 2, the secondary cable 5 passed through the entry point will be bent upwards towards the housing 2. In this case, the vertical position of the cable fixing halters 7 will be positioned above the uppermost output connector 4 to which the fixed secondary cable 5 is connected. In addition, the horizontal arrangement of the cable fixing halters 7 will be staggered from bottom to top, from right to left, with a spacing greater than the diameter of the secondary cable 5.

[0021] The cable fixing positions 6 set on the cable fixing halter 7 are the positions where the secondary cables 5 are individually fixed. In this example, the cable fixing position 6 set on the cable fixing halter 7 is indicated by a recess formed in the cable fixing halter 7, allowing the worker to easily recognize its position. The recess is sized to match the diameter of the secondary cable 5, and by fitting the secondary cable 5 into this recess, the secondary cable 5 can be reliably positioned at the cable fixing position 6. The means for fixing the secondary cable 5 to the cable fixing position 6 is not limited to any particular configuration, as long as it can securely fix the secondary cable 5 to the cable fixing halter 7. For example, it is known that a string-like fixing member such as a cable tie is wrapped around the secondary cable 5 to the cable fixing position 6 of the cable fixing halter 7 as a means of fixing the secondary cable 5 to the cable fixing position 6 of the cable fixing halter 7. Any configuration that allows the secondary cable 5 to be fixed to the cable fixing position 6 of the cable fixing halter 7 using such a known method is acceptable. Thus, the means for fixing the secondary cable 5 to the cable fixing position 6 are not limited, but it is preferable to have a configuration that can prevent the fixed secondary cable 5 from shifting in the depth direction. As a specific example of fixing the secondary cable 5 to the cable fixing position 6, in this example, the secondary cable 5 is fitted into a recess formed at the cable fixing position 6 of the cable fixing halter 7, and then a string-like fixing member (not shown) is wrapped around it to fix the secondary cable 5 and the cable fixing halter 7, thereby preventing the secondary cable 5 from shifting in the depth direction. In addition to this example, a locking mechanism can also be provided at the cable fixing position 6 of the cable fixing halter 7 to prevent the secondary cable 5 and the string-like fixing member wrapped around the cable fixing halter 7 from shifting in the depth direction. More specifically, by forming a locking mechanism such as a pair of locking protrusions or a pair of locking grooves at the upper or lower end of the cable fixing halter 7 and locking the secondary cable 5 and the string-like fixing member wrapped around the cable fixing halter 7 to the locking mechanism, the fixing member is locked in place so as not to shift in the depth direction, thus preventing the secondary cable 5 fixed to the fixing member from shifting in the depth direction. Furthermore, the worker can easily recognize that the space between the pair of locking protrusions or locking grooves is the fixing position of the secondary cable.

[0022] The number of cable fixing positions on the cable fixing halter is not particularly limited, but the cable fixing halter 7 in this example has six cable fixing positions 6. Therefore, in this example, the fixing halter 7 to which the secondary side cables 5 connected to the output connector 4 are fixed is designed to shift downwards from above, for every six secondary side cables 5 connected to the output connector 4 (see Figure 1).

[0023] Multiple output connectors 4 are arranged vertically on the right side of the branch breaker mounting section 8 so as to be horizontal with the corresponding branch breaker 3. Furthermore, among the output connectors 4, those to which the connected secondary cable 5 is fixed to the same cable fixing halter 7 are positioned with a depth offset from each other so that the cable fixing position 6 of the cable fixing halter 7 to which the connected secondary cable 5 is fixed coincides with the depth position of each output connector 4. When the output connectors 4 are arranged in this way, output connectors 4 to which the connected secondary cable 5 is fixed to the same cable fixing halter 7 are always offset from each other in the depth direction and are not aligned vertically.

[0024] The arrangement of the output connector 4 in the depth direction is not particularly limited, as long as it coincides with the depth direction position of the cable fixing position 6 to which the secondary side cable 5 connected to the output connector 4 is fixed. However, in this example, the output connectors are arranged in a way that shifts their depth direction from the back side to the front side of the housing 2, starting from the top. In other words, the output connectors 4 are arranged on the right side of the branch breaker mounting section 8 in a direction that slopes downward from the back side to the front side, with the cable fixing halters 7 to which the connected secondary side cable 5 is fixed being the same range. In this example, the fixing halter 7, which secures the secondary cables 5 connected to the output connector 4, is designed to shift downwards from above for every six secondary cables 5. As a result, there are three groups of output connectors, each consisting of six output connectors 4 that are positioned sequentially from the back to the front of the housing 2, starting from above.

[0025] The positional relationship between the output connector 4 and the cable fixing position 6 of the fixing halter 7 in this example is explained in detail with reference to Figure 2. In Figure 2, the left side is the front side of the housing 2, and the right side is the rear side of the housing 2. To facilitate understanding the positional relationship between the output connector 4 and the cable fixing position 6 of the fixing halter 7, the output connector 4 is shown as viewed from the right side, and the cable fixing halter is shown as viewed from above. The dashed circle drawn on the output connector 4 is a virtual line indicating the position of the secondary cable to be connected. As can be seen from Figure 2, when the positions of the output connector 4 and the cable fixing position 6 in the depth direction are aligned, the output connector 4 and the cable fixing position 6 are connected in a straight line in the left-right direction of the housing 2 without any displacement in the depth direction.

[0026] The enclosure 2 is equipped with a door 9 on the front side that covers the inside of the enclosure 2. The shape of the door 9 is not particularly limited, but in this example it consists of a pair of left and right doors 9a and 9b. In this example, the width of the left-hand door 9a is such that it can cover the switch 10 of the branch breaker 3 and does not exceed the width of the branch breaker mounting section 8. In this way, when the switch 10 of the branch breaker 3 is not being used, the door 9a can be kept closed to prevent the switch 10 of the branch breaker 3 from being accidentally operated. Also, if the main circuit breaker 11 is placed above the branch breaker 3 as in this example, keeping the door 9a closed can prevent the switch of the main circuit breaker 11 from being accidentally operated. In this example the main circuit breaker 11 is placed above the branch breaker 3, but the same effect can be achieved by placing the main circuit breaker 11 below the branch breaker 3. In other words, by closing the door 9a located on the left side, the main circuit breaker 11 located below the branch circuit breaker 3 can also be covered together with the switch 10 of the branch circuit breaker 3, thus preventing the switch of the main circuit breaker 11 from being accidentally activated.

[0027] Other configurations are the same as those of known distribution boards.

[0028] In the distribution board 1 configured in this way, the wiring work for the secondary cable 5 is performed by connecting the secondary cable 5 to the output connector 4, pulling the connected secondary cable 5 out from the output connector 4 to the right, bending it downwards, and fixing it to the cable fixing position 6. As shown in Figure 4, the fixed secondary cable 5 is straight in the left-right direction without shifting in the depth direction. Also, as shown in Figure 3, the secondary cable connected to the output connector on the front side is positioned lower than the output connector on the rear side.

[0029] In the distribution board 1 of this example, configured as described above, the output connector 4 is positioned such that its depth coincides with the depth of the cable fixing position 6 of the cable fixing halter 7 to which the secondary cable 5 connected to the output connector 4 is fixed. As a result, the output connector 4 and the cable fixing position 6 are located in a straight line in the left-right direction of the enclosure. Therefore, in the wiring work of the secondary cable 5, it is not necessary to bend the secondary cable connected to the output connector in the depth direction while adjusting it to correspond to the fixing part of the cable fixing halter, as is done in conventional distribution boards. This simplifies the wiring work of the secondary cable 5 and improves work efficiency. Furthermore, the load on the output connector 4 during the wiring work of the secondary cable 5 is reduced, preventing damage to the output connector 4 and thus preventing problems such as connection failure or fire.

[0030] Furthermore, the output connectors 4 are arranged such that the cable fixing halters 7 to which the connected secondary cable 5 is secured are positioned in the depth direction of the same output connector 4, shifting from the back to the front of the housing 2 from top to bottom. Therefore, whether the secondary cable 5 connected to the upper output connector 4 is hanging down from the output connector 4 or fixed to the cable fixing halter 7, it is always positioned behind the lower output connector 4. This ensures that the secondary cable 5 connected to the upper output connector 4 does not get in the way when wiring the lower output connector 4, improving work efficiency. In addition, since the secondary cable 5 connected to the front output connector 4 is positioned below the rear output connector 4, the front secondary cable 5 does not obstruct the view of the rear output connector 4, and does not hinder the worker's understanding of the correspondence between the branch breaker 3 and the output connector 4. [Explanation of symbols]

[0031] 1 Distribution board 2 cabinets 3-way branch circuit breaker 4 output connectors 5. Secondary cable 6. Cable fixing position 7 Cable fixing hooks 8 Branch breaker mounting section 9 doors 10 switches 11 Main switch Length of the spacing between L1 output connectors in the depth direction. Length of the spacing between fixing parts on the L2 cable fixing halter.

Claims

1. In a distribution board comprising multiple branch breakers arranged vertically within the enclosure, multiple output connectors arranged vertically so as to be horizontal to the corresponding branch breakers, and rod-shaped cable fixing halters for individually fixing the secondary cables connected to the output connectors in a horizontal line in the depth direction, A distribution board characterized in that, among the output connectors, the output connectors to which the connected secondary cable is fixed to the same cable fixing halter are arranged with their positions offset in the depth direction from one another such that the cable fixing position in the cable fixing halter to which the secondary cable connected to each output connector is fixed coincides with the position in the depth direction.

2. The distribution board according to claim 1, characterized in that, among the output connectors, the output connectors to which the connected secondary cable is fixed to the same cable fixing halter are arranged in order from top to bottom, with their positions shifted in the depth direction from the back side to the front side of the housing.

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