Electrical equipment storage box

Abstract

To provide an electric device housing box including an electric device and a connector that is connected to a cable with a connector part inserted from the outside of a casing, wherein, in the casing, the electric device or the like can be covered and a cable-side connection part of the connector can be covered.SOLUTION: An electric device housing box 1 includes a casing 11 having an opening, and a connector that is connected to a cable with a connector part inserted from the outside of the casing. The electric device housing box has a configuration including, in the casing, a first protective part that can cover the electric device from the opening side, and a second protective part that can cover a cable-side connection part of the connector from the opening side.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a box for storing electrical equipment. [Background technology]

[0002] As described in Patent Document 1, a charging device for a rechargeable vehicle is known that includes a power outlet tap within a housing and a breaker connected to the power outlet tap. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2011-130622 A

[0004] In this charging device, the charging parts such as the breaker are covered with a shield plate to prevent the user of the device from getting an electric shock even if the user opens the door. However, since the outlet tap is exposed, there is a risk of tampering with the outlet tap or an electrical accident occurring when connecting to the outlet tap. On the other hand, in the electrical device storage box, the space where the connectors used in emergencies are located and the space where the electrical devices used normally are located may be separated within the housing. In this case, too, the connector was easily accessible because there was no part inside the housing that covered the connector. Summary of the Invention [Problem to be solved by the invention]

[0005] 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 make it possible to cover the electrical equipment and the like within the housing as well as the cable side connection portion of the connector in an electrical equipment storage box that includes an electrical equipment and a connector to be connected to a cable with a connector portion that is inserted from outside the housing. [Means for solving the problem]

[0006] In order to solve the above problems, the present invention provides an electrical equipment storage box that includes a housing with an opening and a connector to be connected to a cable with a connector portion that is inserted from outside the housing, the electrical equipment storage box including a first protective portion within the housing that is capable of covering the electrical equipment from the opening side, and a second protective portion within the housing that is capable of covering the cable side connection portion of the connector from the opening side.

[0007] It is also preferable that the housing is provided with a door covering the front surface, the second protective plate constituting the second protective part is disposed closer to the door than the first protective plate constituting the first protective part, and a portion of the second protective plate is disposed so as to overlap the first protective plate.

[0008] It is also preferable to provide an interlock mechanism that controls the opening and closing of the second protection unit depending on the open / closed state of the electrical device, and the interlock mechanism is configured to be able to open the second protection unit when the electrical device is in the open state.

[0009] In addition, it is preferable that the electrical equipment is provided with a service breaker connected to a commercial power source and an emergency breaker connected to an emergency power source, and the interlock mechanism that controls the opening and closing of the second protection unit is configured to enable the second protection unit to be opened when the emergency breaker is in the open state. Effect of the Invention

[0010] In the present invention, in an electrical equipment storage box which includes an electrical equipment and a connector to be connected to a cable with a connector portion inserted from outside the housing, it is possible to cover the electrical equipment etc. within the housing as well as to cover the cable side connection portion of the connector. [Brief description of the drawings]

[0011] [Figure 1] FIG. 2 is a perspective view of an electrical device storage box according to the embodiment. [Diagram 2] 2 is a perspective view showing a state in which a door of the electrical device storage box shown in FIG. 1 is open. [Diagram 3] 3 is a perspective view showing a state in which a second protective plate of the electric device storage box shown in FIG. 2 is open. FIG. [Figure 4] 1 is a perspective view showing a state in which a protective plate is removed from an electrical device storage box according to an embodiment, with the door open. [Diagram 5] 1 is a front view showing a state in which a protective portion and a door are removed from an electrical equipment storage box according to an embodiment. [Figure 6] Figure 5 shows the live part area and the cable connection area. [Figure 7] 4 is a front view showing the electrical device storage box in the embodiment with a door and a second protective plate open. FIG. [Figure 8] 1 is a front view showing a state in which a door of an electrical device storage box in an embodiment is open. FIG. [Figure 9] FIG. 13 is a perspective view showing a state in which the main part of the interlock mechanism is attached to a breaker stand. [Figure 10] FIG. 10 is an exploded perspective view of FIG. [Figure 11] FIG. 4 is an exploded perspective view of a main part of the interlock mechanism. [Figure 12] 13 is a diagram illustrating a state in which the second protective plate cannot be opened by using an interlock mechanism. FIG. [Figure 13] 13 is a diagram illustrating a state in which the second protective plate has been brought into an openable state from the state illustrated in FIG. 12. FIG. [Figure 14] 13 is a diagram showing an example in which an emergency power supply is connected to a cable side connection portion of a connector. FIG. [Figure 15] 13 is a diagram showing an example in which an emergency power supply is connected to a cable side connection portion of a connector. FIG. [Figure 16] 13 is a diagram showing a state in which both the service breaker and the emergency breaker are in an OFF state and the operating unit is in a position that allows the second protective plate to be opened. FIG. [Figure 17] 13 is a diagram showing the service breaker in an on state, the emergency breaker in an off state, and the operating unit in a position that allows the second protective plate to be opened. FIG. [Figure 18]13 is a diagram showing a state in which both the service breaker and the emergency breaker are in an OFF state and the operation unit is in a position that does not allow the second protective plate to be opened. FIG. [Figure 19] 13 is a diagram showing the service breaker in an OFF state, the emergency breaker in an ON state, and the operation unit in a position that does not allow the second protective plate to be opened. FIG. [Figure 20] FIG. 1 is a diagram showing an example in which a changeover switch is used in an electrical device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] An embodiment of the invention will be described below. As can be understood from Figs. 1 to 6, an electric device storage box 1 of this embodiment includes a housing 11 with an opening and a connector 20 to be connected to a cable with a connector portion that is inserted from outside the housing 11. This electric device storage box 1 includes, in the housing 11, a first protective part capable of covering the electric device from the opening side, and a second protective part capable of covering the cable side connection part 22 of the connector 20 from the opening side. Therefore, in the electric device storage box 1 including the electric device and the connector 20 to be connected to a cable with a connector portion that is inserted from outside the housing 11, the electric device and the like can be covered in the housing 11, and the cable side connection part 22 of the connector 20 can be covered.

[0013] Here, the configuration of the electric device storage box 1 of the embodiment will be explained from the outline. The electric device storage box 1 of the embodiment is a distribution board, and includes a housing 11 with an opening, and a door 12 attached to the housing 11 so as to be able to cover the opening of the housing 11. This electric device storage box 1 is an electric device storage box 1 that can supply power to a load even when the commercial power supply is stopped by connecting a cable with a connector part that is inserted from outside the housing 11 to a connector 20 provided inside the box.

[0014] The electric device storage box 1 of the embodiment includes conductive members such as a cable and a bus bar, and electric devices such as a breaker, an electromagnetic contactor, and a relay, and includes a charging part area EA that stores a charging part that is a part to which power is supplied when used under normal use conditions. The electric device storage box 1 also includes a cable connection area EB that stores the cable side connection part 22 of a connector 20 having an electric device side connection part 21 to which an electric device is connected and a cable side connection part 22 to which a cable with a connector part that is wired from outside the housing 11 is connected.

[0015] In the electric device storage box 1 of the embodiment, the internal space is divided into two areas, a live section area EA and a cable connection area EB, when viewed from the front. More specifically, the internal space of the electric device storage box 1 is divided into two areas, a live section area EA and a cable connection area EB, when viewed from the front, by a partition member 13 to which a connector 20 is attached. In the example shown in Fig. 5 and Fig. 6, the areas are arranged vertically, with the live section area EA located at the top and the cable connection area EB located at the bottom. In the embodiment, power is not normally supplied to the device placed in the cable connection area EB.

[0016] 5, the connector 20 is installed below a service breaker 81 and an emergency breaker 82 arranged in parallel inside the housing 11. The connector 20 attached to the partition member 13 has an electric device side connection part 21 on one end and a cable side connection part 22 on the other end. In the embodiment, with the partition member 13 as a reference, the electric device side connection part 21 side is a live part area EA, and the cable side connection part 22 side is a cable connection area EB.

[0017] The live area EA may include not only the normal breaker 81, emergency breaker 82, and electrical equipment side connection portion 21 of the connector 20 arranged within the housing 11, but also conductive members such as cables for connecting the normal breaker 81 to a commercial power source, the normal breaker 81 to a load, and the emergency breaker 82 to the electrical equipment side connection portion 21 of the connector 20, and terminal blocks for relaying the conductive members.

[0018] The cable connection area EB may include not only the cable side connection portion 22 of the connector 20, but also other members that will not cause electric shock even if they come into contact with each other during power supply.

[0019] The electric device side connection part 21 of the connector 20 is located within the live section area EA. The live section area EA is covered on its front side with a first protective plate 41 constituting a first protective part because contact with the live section area EA during power supply may cause electrical accidents such as electric shock, ground faults, and short circuits. However, as can be seen from Fig. 7, the first protective plate 41 of the embodiment does not cover the cable side connection part 22 of the connector 20.

[0020] On the other hand, the cable connection area EB is an area where electricity does not normally flow. Therefore, the possibility of an electrical accident occurring is smaller than in the live part area EA, but an electrical accident may occur when the connection to the cable side connection part 22 of the connector 20 is not made properly. For example, when a cable with a connector part that does not fit the connector 20 is connected. There is also a risk of tampering with the cable side connection part 22 of the connector 20. In consideration of this, in the embodiment, the front side of the cable connection area EB can be covered with a second protective plate 42 constituting a second protective part (see Figs. 2 and 8). In this way, it is possible to prevent the cable connection area EB from being exposed when the door 12 is opened, and it is possible to suppress the occurrence of electrical accidents and tampering.

[0021] Incidentally, it is possible to form the first protective section and the second protective section with a single protective plate, but in such a structure, the live section will be exposed when the cable is connected to the connector 20. Since this is not desirable, it is preferable to provide the first protective section and the second protective section separately.

[0022] In order to prevent the occurrence of electric shock, it is preferable that the first protective plate 41 constituting the first protective part has a structure that cannot be easily opened. For example, in order to maintain the state in which the first protective plate 41 covers the live section area EA, it is preferable to fix the first protective plate 41 to the protective plate support member with a member that is fixed using a tool, such as a screw or a bolt. In the embodiment, the first protective plate 41 covering the live section area EA is supported by the protective plate support members provided at the upper left and right corners of the housing 11 and the partition member 13 that separates the connector 20, and is fixed with a screw.

[0023] On the other hand, it is preferable that the second protective plate 42 has a structure that allows it to be easily opened in order to connect a cable to the connector 20. For example, it is preferable that one end of the second protective plate 42 is rotatably fixed to the protective plate support member, and the other end is fixed with a member that can be manually released, such as a latch lock or a knurled screw. However, it goes without saying that a member that can be fixed with a tool to the other end of the second protective plate 42 may be used to improve security.

[0024] In the embodiment, the second protective plate 42 is supported by protective plate support members provided at approximately the center left and right of the housing 11 and at the lower left and right corners of the housing 11, but the second protective plate 42 is rotatably fixed to a protective plate support member provided on the right side of the housing 11.

[0025] In addition, in the embodiment, notches 45 for inserting the protective plate support members are provided on the left and right sides of approximately the center of the first protective plate 41 so that the protective plate support members on the left and right sides of approximately the center of the housing 11 do not come into contact with the first protective plate 41.

[0026] 2 and 3, it is preferable that the second protective plate 42 be positioned closer to the front (door 12 side) than the first protective plate 41 when the first protective plate 41 and the second protective plate 42 cover the electrical equipment, the connector 20, etc. In this way, the second protective plate 42 can be opened without opening the first protective plate 41. Therefore, it is possible to prevent electrical accidents from occurring when connecting a cable to the connector 20.

[0027] It is also preferable that a part of the second protective plate 42 overlaps the first protective plate 41. This configuration can eliminate a gap between the protective plates that occurs when the first protective plate 41 and the second protective plate 42 are installed in parallel. This can prevent foreign matter from entering through the gap between the first protective plate 41 and the second protective plate 42 or from being tampered with.

[0028] Incidentally, the first protective plate 41 of the embodiment is provided with an opening 46 for inserting an electric device. A part of the electric device, such as a handle of the electric device, can be inserted through this opening 46. With this configuration, it is possible to perform operations such as turning off the electric device without opening the first protective plate 41.

[0029] The second protective plate 42 also has an opening 47 similar to that of the first protective plate 41, through which a part of the electric device, such as a handle of the electric device, can be inserted. In this way, the electric device can be turned off or other operations can be performed without opening the first protective plate 41 and the second protective plate 42.

[0030] In the embodiment, the electrical appliance further includes an interlock mechanism 50 that controls opening and closing of the second protective plate 42 depending on the open / closed state (on / off state) of the electrical appliance. The interlock mechanism 50 is preferably configured to be capable of opening the second protective unit when the electrical appliance is in the open state. The interlock mechanism 50 in the embodiment includes a base unit 51 fixed to a stand 91 on which the electrical appliance is mounted, an operation unit 52 that holds the base unit 51 in the front and rear directions, a locking unit 53 fixed to the base unit 51, and a locking unit 54 fixed to the second protective plate 42 (see FIGS. 9 to 11).

[0031] The base portion 51 of the embodiment is formed with a substantially U-shaped cross section so as to cover the left and right side surfaces and the front surface of an electric device such as a breaker. The base portion 51 can be fixed to the stand 91 by fixing bent pieces 51a formed by bending both ends of the base portion 51 with screws to the stand 91 that fixes the electric device. An insertion hole 51c through which the front surface including the handle of the electric device is inserted is provided in the front side edge 51b of the base portion 51, so that the handle of the electric device can be protruded to the front side from the insertion hole 51c.

[0032] As can be seen from FIG. 11, the operating unit 52 of the embodiment has a structure that combines a rear operating unit 52a that is located on the electrical equipment side and a front operating unit 52b that is located on the door 12 side, and these are fixed with screws so that the operating unit 52 can be attached so as to sandwich the base portion 51.

[0033] As can be seen from Fig. 11, the front operation portion 52b of the embodiment is provided with a locking piece 52c extending in the left-right direction. As can be seen from Figs. 12 and 13, the operation portion 52 of the embodiment can move in the left-right direction, and the locking piece 52c can be locked with the locking portion 54 of the second protective plate 42 to restrict the opening of the second protective plate 42.

[0034] In addition, the front operating portion 52b can be positioned within the movable range of the handle of the electrical device, and is preferably configured to be positioned so as to prevent the electrical device from changing from an open (off state) to a closed (on state).

[0035] 5, the electrical equipment includes a service breaker 81 connected to a commercial power source and an emergency breaker 82 connected to an emergency power source or for connecting to an emergency power source. The emergency breaker 82 is connected to the electrical equipment side connection portion 21 of the connector 20.

[0036] There are two typical examples of what is connected to the cable-side connection part 22 of the connector 20. The first is an emergency power supply. As shown in Fig. 14, when the primary side of an emergency breaker 82 is connected to the electrical equipment-side connection part 21 of the connector 20 and the secondary side is connected to a load, if the supply of power to the load is cut off due to a power outage of the commercial power supply or the like, an emergency power supply (strictly speaking, a cable with a connector part to which the emergency power supply is connected) is connected to the cable-side connection part 22 of the connector 20, power is supplied from the emergency power supply to the emergency breaker 82, and power is supplied to the load via the emergency breaker 82.

[0037] In this case, the load connected to the emergency breaker 82 may be the entire load connected to the service breaker 81 or a part of the load connected to the service breaker 81 .

[0038] A second example of what is connected to the cable-side connection portion 22 of the connector 20 is a load. As shown in Fig. 15, when the primary side of an emergency breaker 82 is connected to an emergency power supply and the secondary side is connected to the electrical equipment-side connection portion 21 of the connector 20, by connecting a load (strictly speaking, a cable with a connector portion to which a load is connected) to the cable-side connection portion 22 of the connector 20, power is supplied from the emergency power supply to the emergency breaker 82, and power can be supplied to the load via the emergency breaker 82. In this case, the load connected to the emergency breaker 82 may be different from the load connected to the service breaker 81.

[0039] Here, the movement of the interlock mechanism 50 will be described. The operation unit 52 of the interlock mechanism 50 in the embodiment is slidable in the left-right direction. The left-right length of the part of the operation unit 52 in the embodiment that protrudes toward the electrical device is set to a length that always covers only one of the movable areas of the handles of the service breaker 81 and the emergency breaker 82. In other words, when the operation unit 52 is in the movable area of ​​the handle of the service breaker 81, the handle of the emergency breaker 82 can be opened and closed, and when the operation unit 52 is in the movable area of ​​the handle of the emergency breaker 82, the handle of the service breaker 81 can be opened and closed.

[0040] Furthermore, the length in the left-right direction of the operating portion 52 of the interlock mechanism 50 is set to a length such that when the locking piece 52c is disengaged from the locking portion 54 of the second protective plate 42, it is in a position to cover the movable area of ​​the handle of the emergency breaker 82. Therefore, only when the emergency breaker 82 is in the OFF state, the locking piece 52c and the locking portion 54 are disengaged, and the second protective plate 42 can be opened.

[0041] The relationship between the interlock mechanism 50, the service breaker 81, and the emergency breaker 82 in this embodiment will be described more specifically. Here, of the adjacent breakers on the left side, the breaker on the right side will be described as the service breaker 81, and the breaker on the right side will be described as the emergency breaker 82. Note that the service breaker 81 and the emergency breaker 82 may be arranged in the reversed order.

[0042] In the example shown in Fig. 16, the operating unit 52 is located on the right side within the movable range. In this state, the second protective plate 42 can be opened. In the state shown in Fig. 16, the handle 87 is located at a position where the emergency breaker 82 is in the OFF state. In addition, the operating unit 52 is located so as to prevent the handle 87 of the emergency breaker 82 from being switched from the OFF state position to the ON state position. Therefore, the emergency breaker 82 is restricted from moving to the ON state, and the OFF state is maintained.

[0043] In the example shown in Fig. 16, the service breaker 81 is in an OFF state, but with the operation unit 52 of the embodiment, the service breaker 81 can be turned on from the state shown in Fig. 16 (see Fig. 17). In the embodiment, the state shown in Fig. 17 can be achieved by using the handle 86 of the service breaker 81 to prevent the operation unit 52 from moving leftward, so that the second protective plate 42 cannot be locked. From another perspective, this structure can be said to require the service breaker 81 to be in an OFF state in order to lock the second protective plate 42.

[0044] The example shown in Fig. 18 shows a state in which the operation unit 52 is moved leftward from the state shown in Fig. 16 to lock the second protective plate 42. In the interlock mechanism 50 of the embodiment, when this state is reached, the service breaker 81 is restricted from moving to the ON state, so that the OFF state is maintained. Note that the emergency breaker 82 can be either OFF or ON.

[0045] However, when the emergency breaker 82 is turned on from the state shown in FIG. 18 (see FIG. 19), the handle 87 of the emergency breaker 82 prevents the operation unit 52 from moving to the right. Specifically, the right end of the operation unit 52 abuts against the handle 87 of the emergency breaker 82, and the operation unit 52 cannot move further to the right. In this way, the locked state of the second protective plate 42 cannot be released. From another perspective, this structure can be said to require the emergency breaker 82 to be in the off state in order to release the locked state of the second protective plate 42.

[0046] In this example, the electrical device is provided with a service breaker 81 connected to a commercial power source and an emergency breaker 82 connected to an emergency power source, and the interlock mechanism 50 that controls the opening and closing of the second protection unit allows the second protection unit to be opened when the emergency breaker 82 is in an open state. In this way, a step of opening the emergency breaker 82 is required when releasing the protection of the second protection unit, thereby improving safety.

[0047] In this example, when the interlock mechanism 50 of the embodiment is to lock the second protective plate 42, the service breaker 81 cannot be turned on. Therefore, the interlock mechanism 50 is normally released, and is used to prevent the second protective plate 42 from being opened when the emergency breaker 82 must be turned on.

[0048] In the above example, there are two electrical devices, a normal breaker 81 and an emergency breaker 82. However, since it is only necessary to be able to switch between a circuit that is connected to a commercial power source under normal conditions and a circuit that is connected to an emergency power source in an emergency, a changeover switch 83 may also be used for the electrical device.

[0049] The changeover switch 83 has three terminals, a first terminal, a second terminal, and a common terminal, and can switch the connection destination of the common terminal between the first terminal and the second terminal. As can be seen from FIG. 20, for example, the first terminal can be connected to a commercial power source, the second terminal to an emergency power source, and the common terminal to a load. In this case, during normal times, the common terminal is connected to the first terminal so that commercial power is supplied to the load. On the other hand, during an emergency such as a power outage, the common terminal is connected to the second terminal so that emergency power is supplied to the load. By making this possible, the power supply source can be switched between normal times and emergency times.

[0050] 20, the second terminal is connected to the electrical device side connection portion 21 of the connector 20. By connecting an emergency power supply to the cable side connection portion 22 of the connector 20 in an emergency, power is supplied from the emergency power supply to the changeover switch 83, and the power can be supplied from the changeover switch 83 to the load.

[0051] 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, when changing the protective plate support member, the arrangement of the protective plate support member may be changed, the protective plate support member may be used in common to support the first protective plate and the second protective plate, or the number of protective plate support members may be increased or decreased. [Explanation of symbols]

[0052] 1 Electrical equipment storage box 11. Cabinet 12 Doors 20 Connectors 41 First protective plate 42 Second protective plate 50 Interlocking mechanism 81 Service breaker 82 Emergency breaker

Claims

1. An electrical device storage box comprising a housing having an opening, a door covering a front surface of the housing, and a connector for connecting to a cable with a connector portion inserted from outside the housing, The housing includes a first protective section capable of covering the electrical device from an opening side, and a second protective section capable of covering the cable side connection section of the connector from the opening side, a second protective plate constituting the second protective portion is provided closer to the door than a first protective plate constituting the first protective portion; A box for storing electrical equipment, wherein a portion of the second protective plate is provided so as to overlap the first protective plate.

2. A box for storing electrical equipment, comprising a housing having an opening and a connector for connecting to a cable with a connector portion inserted from outside the housing, The housing includes a first protective section capable of covering the electrical device from an opening side, and a second protective section capable of covering the cable side connection section of the connector from the opening side, The electrical equipment is provided with a service breaker connected to a commercial power source and an emergency breaker connected to an emergency power source, The interlock mechanism for controlling the opening and closing of the second protection section enables the second protection section to be opened when the emergency breaker is in the open state.

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