Distribution Board

Abstract

To make it hard for a liquid flowing from an incoming cable to a terminal board to be dropped on an inner-board structure member located below the terminal board.SOLUTION: A distribution board 1 includes a terminal board 11 having a first terminal part 11a and a second terminal part 11b in a housing 10. The terminal board is installed so that the second terminal part is located below the first terminal part with which an incoming cable 20 wired from the outside of the housing is connected. An inner-board structure member is installed vertically below a wiring member 50 wired from the second terminal part. A liquid receiver 61 capable of suppressing dripping of a liquid to the inner-board structure member is installed below the first terminal part of the terminal board and above the inner-board structure member.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a distribution board.

Background Art

[0002] A distribution board having a terminal block in a housing is known. In the distribution board described in Patent Document 1, a terminal block is provided on the primary side of the main breaker. As in this example, there are cases where an incoming cable is connected to the terminal block and wiring is performed from the terminal block to other devices (such as breakers and terminal blocks).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

[0004] By the way, when connecting an incoming cable to a terminal block from above, liquids may drip from the incoming cable. For example, liquids may drip from the conductor in the incoming cable coating into the gap of the crimp terminal.

[0005] The liquids may be rainwater or grease, etc. One cause of rainwater dripping is damage to a part of the coating of the incoming cable wired from underground. Liquids such as rainwater reach the tip of the incoming cable by capillary action from the damaged part and drip. As an example of the dripping grease, grease for rust prevention can be mentioned. When the conductor of the incoming cable is aluminum, grease is applied between the conductor and the crimp terminal or compression terminal for rust prevention of aluminum, but this grease may drip due to gravity.

[0006] In any case, it is not preferable for the liquids dripping from the incoming cable to come into contact with the devices (such as breakers and terminal blocks) below. This is because the dripping liquids may cause a decrease in insulation performance due to deterioration (such as cracking) of the housing of the device or may cause a short circuit between different poles. Summary of the Invention [Problem to be solved by the invention]

[0007] The inventor of the present invention has studied this point diligently and attempted to solve the problem. The problem to be solved by the present invention is to prevent the liquid brought to the terminal block from dripping onto the components inside the panel located below the terminal block. [Means for solving the problem]

[0008] In order to solve the above problems, a distribution board is provided that has a terminal block with a first terminal portion and a second terminal portion inside a housing, the terminal block is installed so that the second terminal portion is located below the first terminal portion to which an incoming cable wired from outside the housing is connected, an internal panel component is installed vertically below the wiring member wired from the second terminal portion, and a liquid receiving portion capable of preventing liquids from dripping onto the internal panel component is installed below the first terminal portion of the terminal block and above the internal panel component.

[0009] It is also preferable that the liquid receiving portion be located vertically below the wiring member that is wired from the second terminal portion and vertically above the in-board components.

[0010] In addition, it is preferable that the wiring member connected to the second terminal portion of the terminal block is a copper bar, the internal panel component is an electrical device electrically connected to the second terminal portion of the terminal block via the copper bar, the internal panel component is installed vertically below the terminal block, the copper bar has a crank shape including a first bent portion formed on the terminal block side and a second bent portion formed on the electrical device side, and a liquid receiving portion is provided vertically below the first bent portion.

[0011] In addition, it is preferable that the bending angle of the first bent portion of the copper bar is an acute angle.

[0012] Moreover, it is preferable that the liquid receiving portion has a recessed portion on the lower side. Effect of the Invention

[0013] According to the present invention, it is possible to prevent liquid brought to the terminal block from dripping from the incoming cable onto components inside the board located below the terminal block. [Brief description of the drawings]

[0014] [Figure 1] 1 is a front view of a distribution board according to an embodiment with the door open; [Diagram 2] 1 is a perspective view showing an example of a terminal block to which an incoming cable is connected and a main breaker and its surroundings. [Diagram 3] This is a side view showing an example of a terminal block to which an incoming cable is connected and an area around a main breaker, as viewed from the left side. [Figure 4] FIG. 2 is an exploded perspective view of the base and the liquid receiving member. [Diagram 5] A cross-sectional view showing an example of a terminal block to which an incoming cable is connected and a main breaker and its surroundings as viewed from the left side, where a liquid receiving member is located between a first terminal portion and a second terminal portion. [Figure 6] 13 is a diagram showing an example of a state in which a liquid receiving member is placed on a base portion. FIG. [Figure 7] 7 is a diagram showing an example in which the liquid receiving member shown in FIG. 6 is slid in the left-right direction. FIG. [Figure 8] 13 is a diagram showing an example in which the liquid receiving portion receives droplets mainly from a wiring member. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] The following describes an embodiment of the invention. As can be understood from FIGS. 1 to 3, the distribution board 1 of this embodiment includes a terminal block 11 having a first terminal portion 11a and a second terminal portion 11b inside a housing 10. In this distribution board 1, the terminal block 11 is installed so that the second terminal portion 11b is located below the first terminal portion 11a to which the incoming cable 20 wired from the outside of the housing 10 is connected, the components inside the board are installed vertically below the wiring member 50 wired from the second terminal portion 11b, and a liquid receiving portion 61 capable of suppressing dripping of liquids onto the components inside the board is installed below the first terminal portion 11a of the terminal block 11 and above the components inside the board. This makes it possible to prevent the liquid brought to the terminal block 11 from the incoming cable 20 from dripping onto the components inside the board located below the terminal block 11. More specifically, the liquid receiving portion 61 can receive the liquid dripping from the incoming cable 20 connected to the first terminal portion 11a, thereby preventing the liquid from coming into contact with the components inside the panel. As a result, it is possible to prevent deterioration of the components inside the panel due to contact with the liquid, which can lead to a decrease in insulation performance, and a short circuit between different poles.

[0016] The components inside the panel that are protected by the liquid receiving portion 61 are preferably breakers, terminal blocks, copper bars, bar holders, conductive part protective covers, etc. Also, it is preferable that the components are ones whose insulation performance is reduced due to deterioration caused by contact with liquids, or ones that may cause a short circuit between different poles.

[0017] Here, the distribution board 1 of the embodiment will be described. In the distribution board 1 of the embodiment, the incoming cable 20 is introduced from the top of the housing 10. This incoming cable 20 is wired so as to pass underground or above ground outside the housing 10 of the distribution board 1, and is introduced into the housing 10 of the distribution board 1, and a crimp terminal 22 provided at the end and a first terminal portion 11a of the terminal block 11 are connected so as to be in close contact with each other. In the example shown in FIG. 1, the incoming cable 20 is introduced into the housing 10 through a hole provided in the top plate of the housing 10. This incoming cable 20 is connected to the terminal block 11 inside the housing 10. The crimp terminal 22 may be a compression terminal.

[0018] 1, an incoming cable 20 made of aluminum is connected to a terminal block 11 provided on the upper part of a housing 10. The incoming cable 20 has a conductor made of aluminum that is covered with a protective member. The conductor does not have to be made of aluminum, and may be made of copper, for example.

[0019] The terminal block 11 is arranged such that a first terminal portion 11a to which the incoming cable 20 is connected is located at the top, and a second terminal portion 11b to which a wiring member 50 that is connected to an electric device on the secondary side of the terminal block 11 is connected is located at the bottom. The first terminal portion 11a and the second terminal portion 11b are electrically connected.

[0020] Furthermore, the liquid receiving portion 61 is disposed below the first terminal portion 11a of the terminal block 11 and above the main breaker 81, which is one of the components within the panel. This makes it possible to prevent liquid brought to the terminal block 11 from the incoming cable 20 from dripping onto the main breaker 81. The terminal block 11 may be oriented so that the incoming cable 20 can be connected to the first terminal portion 11a from above.

[0021] 1 to 3, the wiring member 50 connected to the second terminal portion 11b of the terminal block 11 is a copper bar, the in-board component is an electric device electrically connected to the second terminal portion 11b of the terminal block 11 via the copper bar, and the in-board component is installed vertically below the terminal block 11. In such a case, it is preferable that the copper bar has a crank shape including a first bent portion 50d formed on the terminal block 11 side and a second bent portion 50e formed on the electric device side, and that a liquid receiving portion 61 is provided vertically below the first bent portion 50d. With such a configuration, liquid can be dripped into the liquid receiving portion 61 through the copper bar without making the terminal block 11 larger.

[0022] In such a configuration, the bending angle of the first bent portion 50d of the copper bar is preferably within 90 degrees, but is more preferably an acute angle. If the bending angle of the first bent portion 50d of the copper bar is an acute angle, the liquid is more likely to drip near the first bent portion 50d even if the wiring member 50 is slightly tilted due to the housing 10 being installed at a slight angle.

[0023] In this example, the second terminal portion 11b of the terminal block 11 is connected to the main breaker 81 by a copper bar which is the wiring member 50. Also, a plurality of branch breakers 82 are connected to the secondary side of the main breaker 81 via copper bars.

[0024] The terminal block 11 of the embodiment is attached to the housing 10 via a base 12. The base 12 of the example shown in Fig. 2 has a hat-shaped cross section. The base 12 is formed into this shape by bending. As can be seen from Fig. 3, the base 12 of the embodiment is attached to a board 13.

[0025] 1 to 3, a liquid receiving member R having a liquid receiving portion 61 is attached to a base 12 on which a terminal block 11 is attached. In this example, the liquid receiving member R is disposed so as to be positioned vertically below the terminal block 11, and can prevent liquid flowing out from the terminal block 11 from dripping onto a main breaker 81, which is one of the components inside the panel.

[0026] In this specification, "vertically below..." and "vertically above..." mean "vertically below..." and "vertically above...". Also, "below..." and "above..." mean "below the position of... (including diagonally below)" and "above the position of... (including diagonally above)".

[0027] Moreover, the liquid receiving portion 61 of the embodiment has a recessed portion 61a recessed downward. This makes it possible to prevent liquid that has reached the liquid receiving portion 61 from leaking out of the liquid receiving portion 61. Note that while it is preferable that the liquid receiving portion 61 has a configuration including the recessed portion 61a, it may also have a flat plate shape. Note that the recessed portion 61a may also have an inclined portion.

[0028] The wiring member 50 is connected to the second terminal portion 11b of the terminal block 11. The liquid receiving portion 61 may protect components inside the board not only from dripping of liquid from the terminal block 11, but also from dripping of liquid flowing down the wiring member 50.

[0029] Here, the wiring member 50 of the example shown in Fig. 1 to Fig. 3 will be described in more detail. This wiring member 50 has a portion in which portions extending substantially parallel to each other at positions shifted in the vertical direction are connected by a connecting portion 50b. More specifically, the wiring member 50 has a substantially crank shape and includes an upstream wiring portion 50a which is a portion extending in the vertical direction and contacting the second terminal portion 11b, a connecting portion 50b which forms an angle with the upstream wiring portion 50a at one end side, and a downstream wiring portion 50c which extends in the vertical direction to form an angle with the other end side of the connecting portion 50b.

[0030] As can be seen from Figures 1 to 3, the first bent portion 50d, which is the portion where the upstream wiring portion 50a and the connecting portion 50b form an angle, is designed to form an acute angle. In the example shown in Figures 1 to 3, the second bent portion 50e, which is the portion where the connecting portion 50b and the downstream wiring portion 50c form an angle, is also designed to form an acute angle. For this reason, the wiring member 50 has a Z-shape in side view.

[0031] In this example, the liquid is dripped from near the first bent portion 50d and received in the liquid receiving portion 61. However, to make it easier to clean the liquid receiving portion 61, it is preferable to removably attach the liquid receiving member R equipped with the liquid receiving portion 61 to the distribution board 1.

[0032] 1 to 4, the liquid receiving member R can be fixed to the base 12 using a screw 71. More specifically, the liquid receiving member R is removably fixed to the base 12 by using the screw 71 inserted into a screw fixing portion R1 provided on the liquid receiving member R.

[0033] In the examples described above, the liquid receiving portion 61 is positioned vertically below the wiring member 50 that is wired from the second terminal portion 11b and vertically above the components inside the panel. This configuration makes it easier to install the liquid receiving portion 61. However, the liquid receiving portion 61 does not have to be positioned in this manner. For example, as can be seen from FIG. 5, the liquid receiving portion 61 may be provided between the first terminal portion 11a and the second terminal portion 11b. Even in this case, it is preferable to provide the liquid receiving portion 61 with a recessed portion 61a, with the open side facing the first terminal portion 11a.

[0034] Incidentally, regardless of the installation location, it is expected that the liquid receiving portion 61 will be removed or moved while receiving dripped liquid. Therefore, it is preferable to make the liquid receiving member R movable so that the liquid in the liquid receiving portion 61 does not easily spill. In the example shown in Figures 6 and 7, the liquid receiving member R is supported by a base portion 75 so that it can slide. The sliding movement may be vertical, but is preferably horizontal.

[0035] 6 and 7, the base portion 75 is fixed to the substrate 13 with screws. It is preferable to slide the liquid receiving member R with one end supported by the base portion 75, place the liquid receiving member R at a predetermined location, and then fix the liquid receiving member R at that location. In this example, the liquid receiving member R can be fixed with screws by using a screw inserted into the screw fixing portion R2, but the fixing method does not have to be by using a screw.

[0036] Incidentally, the liquid receiving portion 61 may be disposed at a position primarily to accommodate dripping from the wiring member 50 connected to the terminal block 11, rather than dripping from the terminal block 11. In the example shown in Fig. 8, the electric wire-like wiring member 50 is bent so as to be convex downward at a position diagonally below the terminal block 11, and the liquid receiving portion 61 is disposed so as to mainly receive dripping from this position. Note that the liquid receiving portion 61 may be disposed at multiple positions, and therefore the liquid receiving portion 61 that mainly receives dripping from the terminal block 11 and the liquid receiving portion 61 that mainly receives dripping from the wiring member 50 may be disposed separately.

[0037] Although the present invention has been described above by taking the embodiment as an example, the present invention is not limited to the above embodiment and can be embodied in various forms. For example, in the illustrated example, the terminal block is structured to be capable of connecting three poles, but it may be structured to be compatible with other numbers of poles.

[0038] The liquid receiving portion may be fixed to a base separate from the base to which the terminal block is fixed.

[0039] In addition, the liquid receiving portion does not need to be separate from the terminal block, and may be integrated with the terminal block. In addition, in this embodiment, the first terminal portion is the primary terminal, and the second terminal portion is the secondary terminal, but the first terminal portion may be the secondary terminal, and the second terminal portion may be the primary terminal. [Explanation of symbols]

[0040] 1 Distribution board 10. Chassis 11 Terminal block 11a First terminal portion 11b Second terminal part 20 Incoming Cable 50 Wiring materials 50d First bend 50e Second bending section 61 Liquid receiving part 61a Recess

Claims

1. A distribution board including a terminal block having a first terminal portion and a second terminal portion inside a housing, the terminal block is installed such that the second terminal portion is located below the first terminal portion to which an incoming cable wired from outside the housing is connected; the in-board component is disposed vertically below the wiring member that is wired from the second terminal portion; A distribution board in which a liquid receiving portion capable of preventing liquids from dripping onto components inside the board is disposed below a first terminal portion of a terminal block and above the components inside the board.

2. 2. The distribution board according to claim 1, wherein the liquid receiving portion is located vertically below the wiring member wired from the second terminal portion and vertically above the components inside the board.

3. the wiring member connected to the second terminal portion of the terminal block is a copper bar; the in-board component is an electric device electrically connected to the second terminal portion of the terminal block via the copper bar, The in-board component is installed vertically below the terminal block, The copper bar has a crank shape including a first bent portion formed on the terminal block side and a second bent portion formed on the electrical device side, 3. The distribution board according to claim 2, further comprising a liquid receiving portion provided vertically below the first bent portion.

4. 4. The distribution board according to claim 3, wherein the bending angle of the first bent portion of the copper bar is an acute angle.

5. The distribution board according to claim 1 , wherein the liquid receiving portion has a recessed portion recessed downward.

Images