Power supply pole

Abstract

We provide a power supply pole that can accommodate multiple types of power supply units. [Solution] The power supply pole 1 comprises a main body 2 that supports a power supply unit that supplies power to the power supply target. The main body 2 has an opening 21 into which at least two of the first switching plate 31, second switching plate 32, and third switching plate are interchangeably attached as switching plates 3. The first switching plate 31 is configured to allow installation of a first power supply unit as a power supply unit having an outlet for a mobile body, when the power supply target is a mobile body. The second switching plate 32 is configured to allow installation of a second power supply unit as a power supply unit having a nozzle, when the power supply target is a mobile body. The third switching plate is configured to allow installation of a third power supply unit as a power supply unit having an outlet for a load, when the power supply target is a load device different from a mobile body.

Description

Technical Field

[0006] , , , ,

[0001] The present disclosure generally relates to a power supply pole. More specifically, the present disclosure relates to a power supply pole configured to be able to install a power supply unit.

Background Art

[0002] Patent Document 1 discloses a power supply pole including a hollow cylindrical pole body and an appliance mounting body. The pole body has an opening provided at one end and through holes provided in the side wall. The appliance mounting body is attached to the pole body and mounts wiring appliances on the side portion of the pole body.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in a power supply pole, a power supply unit for supplying power to a moving body may be installed. However, in the above power supply pole, there may be a case where a power supply unit different from the corresponding power supply unit cannot be installed. In this case, in order to install the above different power supply unit, it is necessary to rebuild the power supply pole corresponding to the above different power supply unit. Thus, in a power supply pole, there is a problem that only the corresponding power supply unit among a plurality of types of power supply units can be installed, and a power supply unit different from the corresponding power supply unit cannot be installed. That is, in a power supply pole, there is a problem that it cannot correspond to a plurality of types of power supply units.

[0005] An object of the present disclosure is to provide a power supply pole capable of corresponding to a plurality of types of power supply units.

Means for Solving the Problems

[0006] A power supply pole according to one aspect of the present disclosure comprises a main body supporting a power supply unit that supplies power to a power supply target. The main body has an opening to which at least two of a first switching plate, a second switching plate, and a third switching plate are interchangeably attached as switching plates. The first switching plate is configured to allow installation of a first power supply unit, which is a power supply unit having a power outlet for a mobile unit, when the power supply target is a mobile unit. The power outlet for the mobile unit can be connected to a mobile unit cable that is electrically connected to the mobile unit. The second switching plate is configured to allow installation of a second power supply unit, which is a power supply unit having a nozzle, when the power supply target is the mobile unit. The nozzle can be electrically connected to the mobile unit. The third switching plate is configured to allow installation of a third power supply unit, which is a power supply unit having a power outlet for a load, when the power supply target is a load device different from the mobile unit. The power outlet for the load can be connected to a load cable that is electrically connected to the load device. [Effects of the Invention]

[0007] According to this disclosure, there is an advantage in that it can accommodate multiple types of power supply units. [Brief explanation of the drawing]

[0008] [Figure 1] Figure 1 is a perspective view illustrating that in the power supply pole according to this embodiment, a first switching plate and a second switching plate are interchangeably mounted as switching plates in the opening. [Figure 2] Figure 2 is a front view of the main components of the same power supply pole, where a first switching plate is attached to the opening and the first power supply unit is installed on the first switching plate. [Figure 3] Figure 3 is a front view of the main components of the same power supply pole, where a second switching plate is attached to the opening and a second power supply unit is installed on the second switching plate. [Figure 4] Figure 4 is a cross-sectional view of the main part of the same power supply pole, in which a first switching plate is attached to the opening and a first power supply unit is installed on the first switching plate. [Figure 5]Figure 5 is a front view of the main part of the same power supply pole when the first and second switching plates are not installed in the opening. [Figure 6] Figure 6 is a perspective view of the main body of the same power supply pole, with the top plate omitted, in the case where the first switching plate is attached to the opening. [Figure 7] Figure 7 is a perspective view of the main body of the power supply pole of the first modified example, with the top plate of the main body omitted, in which the first switching plate is attached to the opening. [Figure 8] Figure 8 is a perspective view of the main body of the power supply pole of the second modified example, in which the top plate of the main body is omitted, with the first switching plate attached to the opening. [Figure 9] Figure 9 is a perspective view of the main body of the power supply pole of the third modified example, in which the top plate of the main body is omitted, with the first switching plate attached to the opening. [Figure 10] Figure 10 is a front view of the main components of another modified power supply pole, in which a third switching plate is attached to the opening and a third power supply unit is installed on the third switching plate. [Modes for carrying out the invention]

[0009] The embodiments and modifications described below are merely examples of the present disclosure. This disclosure is not limited to these embodiments and modifications, and various modifications are possible depending on the design, etc., as long as they do not depart from the technical idea of ​​the present disclosure. The figures described in the embodiments and modifications below are schematic diagrams, and the ratios of the size and thickness of each component in the figures do not necessarily reflect the actual dimensional ratios.

[0010] (Embodiment) (1) Overview The following describes the outline of the power supply pole 1 according to this embodiment with reference to Figures 1 to 3.

[0011] As shown in FIG. 1, the power supply pole 1 according to the present embodiment includes a main body portion 2. The main body portion 2 supports a power supply unit 4 (see FIGS. 2 and 3) that supplies power to a power supply target. The main body portion 2 has an opening 21.

[0012] As shown in FIG. 1, a first switching plate 31 and a second switching plate 32 are detachably attached to the opening 21 as switching plates 3. That is, one of the first switching plate 31 and the second switching plate 32 is attached to the opening 21 as the switching plate 3. As shown in FIG. 2, the first switching plate 31 is configured such that a first power supply unit 41 as a power supply unit 4 having a mobile device outlet 411 can be installed when the power supply target is a mobile device. The mobile device outlet 411 can be connected to a mobile device cable that is electrically connected to the mobile device. On the other hand, as shown in FIG. 3, the second switching plate 32 is configured such that a second power supply unit 42 as a power supply unit 4 having a nozzle 421 can be installed when the power supply target is a mobile device. The nozzle 421 can be electrically connected to the mobile device.

[0013] From the above, the power supply pole 1 of the present embodiment can be detachably installed with both a first power supply unit 41 having a mobile device outlet 411 and a second power supply unit 42 having a nozzle 421. That is, the power supply pole 1 of the present embodiment has an advantage that it can correspond to a plurality of types of power supply units 4.

[0014] (2) Detailed configuration (2.1) Power supply pole Hereinafter, the detailed configuration of the power supply pole 1 of the present embodiment will be described with reference to FIGS. 1 to 6.

[0015] In the following description, the power supply pole 1 will be described as being installed on an installation surface which is a horizontal plane, as shown in FIG. 1. The direction in which the installation surface faces (the direction orthogonal to the installation surface and away from the installation surface) is defined as the upward direction. Also, the opposite of the upward direction is defined as the downward direction. Further, the upward and downward directions may be collectively referred to as the vertical direction. The vertical direction is the vertical direction. Also, in a state where the switching plate 3 is attached to the opening 21 of the main body 2, the thickness direction of the switching plate 3 is defined as the front-rear direction, the side of the main body 2 where the opening 21 is provided is defined as the front direction, and the opposite of the front direction is defined as the rear direction. Unless otherwise specified, the left-right direction indicated by the arrow in FIG. 1 is defined as the left-right direction of the power supply pole 1. The left-right direction intersects the vertical direction and the front-rear direction, and here it is orthogonal. Each of the front-rear direction and the left-right direction is a horizontal direction. However, the definition of these directions is not intended to limit the usage mode of the power supply pole 1.

[0016] The power supply pole 1 is a support column on which a power supply unit 4 for supplying power to a power supply target is installed. The power supply pole 1 is provided, for example, in a facility (residence, factory, commercial building, office building, hospital, etc.). As an example, the power supply pole 1 is provided outdoors at a facility (such as the yard of a residence).

[0017] The power supply pole 1 of the present embodiment is provided with a power supply unit 4 for supplying power to a moving body which is a power supply target. In the power supply pole 1 of the present embodiment, one of the first power supply unit 41 and the second power supply unit 42 is installed as the power supply unit 4. In the following description, when the first power supply unit 41 and the second power supply unit 42 are not distinguished, they are referred to as the power supply unit 4.

[0018] In this disclosure, the "mobile body" is equipped with a battery and moves using the electrical energy stored in the battery. In this embodiment, the mobile body is an electric vehicle. In this embodiment, the mobile body is an electric vehicle, but is not limited to an electric vehicle, and may also be, for example, a plug-in hybrid vehicle that runs by combining the output of an engine and the output of an electric motor, an electric cart, an electric two-wheeler, an electric three-wheeler, an electric four-wheel buggy, etc. The term "electric two-wheeler" here includes motorcycles, electric bikes and electric-assist two-wheelers. The term "electric three-wheeler" also includes electric bikes and electric-assist three-wheelers. Furthermore, the mobile body may also include flying objects such as drones and aircraft.

[0019] As shown in Figure 1, the power supply pole 1 comprises a main body 2, a switching plate 3, and a terminal block 5. In this embodiment, the power supply pole 1 comprises a first switching plate 31 and a second switching plate 32 as the switching plate 3. In the following description, when the first switching plate 31 and the second switching plate 32 are not distinguished, they will be referred to as switching plate 3.

[0020] (2.2) Main body As shown in Figure 1, the main body 2 is a hollow rectangular box shape with an opening 21 on the front side. In short, the main body 2 has an opening 21 on the front side. The main body 2 is made of a metal material. For example, the main body 2 is made of anodized aluminum.

[0021] The main body 2 of this embodiment has a pair of side plates 22, a top plate 23, a front plate 24, and a rear plate 25. Each of the pair of side plates 22, the top plate 23, the front plate 24, and the rear plate 25 is rectangular in shape.

[0022] The pair of side panels 22 face each other in the left-right direction. The front panel 24 and the rear panel 25 face each other in the front-rear direction. The left side panel 221 of the pair of side panels 22 is connected to the left side edge of the front panel 24 and the left side edge of the rear panel 25. Similarly, the right side panel 222 of the pair of side panels 22 is connected to the right side edge of the front panel 24 and the right side edge of the rear panel 25. In this embodiment, the pair of side panels 22, the front panel 24, and the rear panel 25 are integrally formed.

[0023] In this embodiment, the vertical dimension of the front panel 24 is smaller than the vertical dimension of the rear panel 25. The front panel 24 is positioned so as to overlap the lower part of the rear panel 25 when viewed from the front. That is, the main body 2 has an opening 21 above the front panel 24. The opening 21 in this embodiment is rectangular in shape.

[0024] As shown in Figure 1, a first switching plate 31 and a second switching plate 32 are interchangeably mounted in the opening 21 as switching plate 3. That is, one of the first switching plate 31 and the second switching plate 32 is mounted in the opening 21 as switching plate 3. More specifically, when a first power supply unit 41 (see Figure 2) is installed as a power supply unit 4 on the power supply pole 1, the first switching plate 31 is mounted in the opening 21 as switching plate 3. On the other hand, when a second power supply unit 42 (see Figure 3) is installed as a power supply unit 4 on the power supply pole 1, the second switching plate 32 is mounted in the opening 21 as switching plate 3.

[0025] Each of the pair of side plates 22 has a recess 26 (see Figure 6). The corresponding protrusion 34 of the pair of protrusions 34 of the switching plate 3, which will be described later, is inserted into the recess 26. The recess 26 is provided on the inner surface of each of the pair of side plates 22. More specifically, the recess 26 in the left side plate 221 is provided at the front end of the inner surface (right side) of the left side plate 221. Similarly, the recess 26 in the right side plate 221 is provided at the front end of the inner surface (left side) of the right side plate 221.

[0026] In this embodiment, the top plate 23 is formed separately from the pair of side plates 22, the front plate 24, and the rear plate 25, and is attached to the upper surfaces of the pair of side plates 22 and the rear plate 25 by screws or the like. The top plate 23 is attached to the upper surfaces of the pair of side plates 22 and the rear plate 25 when the switching plate 3 is attached to the opening 21.

[0027] As shown in Figures 1 and 4, a terminal block 5 is installed inside the main body 2. More specifically, the main body 2 has a mounting plate 6 on which the terminal block 5 is installed. The mounting plate 6 has a first portion 61, a second portion 62, and a third portion 63. Each of the first portion 61, the second portion 62, and the third portion 63 is rectangular in shape. The thickness direction of the first portion 61 is aligned with the front-to-back direction. The second portion 62 protrudes forward from the upper end of the first portion 61, along the thickness direction of the first portion 61. Similarly, the third portion 63 protrudes forward from the lower end of the first portion 61, along the thickness direction of the first portion 61.

[0028] As shown in Figure 4, the mounting plate 6 is installed inside the main body 2 such that the rear surface of the first portion 61 contacts the rear plate 25 and the upper surface of the second portion 62 contacts the top plate 23. The terminal block 5 is installed on the front of the first portion 61, as shown in Figures 4 and 5.

[0029] As shown in Figure 1, the third portion 63 of the mounting plate 6 is provided with an insertion hole 631 through which the first electric wire W1, which will be described later, is inserted. In this embodiment, the third portion 63 of the mounting plate 6 is provided with two insertion holes 631, and the first electric wire W1 (see Figure 4) is inserted through one of the two insertion holes 631.

[0030] (2.3) First switching plate As shown in Figure 2, the first switching plate 31 is configured to allow installation of a first power supply unit 41, which is a power supply unit 4 having a mobile outlet 411, for a mobile object, where the object to be powered is a mobile object. The first switching plate 31 is made of a metal material. For example, the first switching plate 31 is made of anodized aluminum.

[0031] The first switching plate 31 has a main plate portion 310 which is rectangular in shape. The dimensions of the main plate portion 310 in the vertical and horizontal directions are the same as the dimensions of the opening 21 of the main body portion 2 in the vertical and horizontal directions. Here, "same" does not mean strictly identical, and an error is permitted. The range of the permitted error is, for example, about 5%.

[0032] As shown in Figure 1, the main plate portion 310 is provided with an insertion hole 311 and two screw holes 312.

[0033] As shown in Figure 4, a second wire W2, which is electrically connected to the first power supply unit 41, is inserted through the insertion hole 311. In addition, a wire different from the second wire W2 (for example, a ground wire, a communication wire, etc.) that is electrically connected to the first power supply unit 41 is also inserted through the insertion hole 311. The insertion hole 311 is rectangular when viewed from the thickness direction of the main plate portion 310. As shown in Figure 1, the insertion hole 311 is located in the center of the upper part of the main plate portion 310.

[0034] The first power supply unit 41 is installed on the first switching plate 31 by fastening screws to each of the two screw holes 312 that sandwich the first power supply unit 41. The two screw holes 312 are aligned vertically on either side of the insertion hole 311. That is, one of the two screw holes 312 is located above the insertion hole 311 in the main plate portion 310. On the other hand, the other screw hole 312 is located below the insertion hole 311 in the main plate portion 310.

[0035] As shown in Figure 6, the first switching plate 31, when attached to the opening 21 of the main body 2, has a pair of protrusions 34 that project toward the corresponding side plate 22 of the pair of side plates 22. The top plate 23 is attached to the pair of side plates 22 with each of the pair of protrusions 34 inserted into the corresponding recesses 26, thereby fixing the first switching plate 31 to the pair of side plates 22. This configuration has the advantage that the first switching plate 31 is less likely to come off the pair of side plates 22.

[0036] The configuration of the pair of protrusions 34 in the first switching plate 31 of this embodiment will be described in more detail below.

[0037] In this embodiment, the main plate portion 310 is provided with two plate portions 313 that protrude to the rear. The two plate portions 313 face each other along the left-right direction. Of the two plate portions 313, the left plate portion 313 (see Figure 6) protrudes to the rear from the left edge of the inner surface (rear side surface) of the main plate portion 310. On the other hand, the right plate portion 313 of the two plate portions 313 protrudes to the rear from the right edge of the inner surface (rear side surface) of the main plate portion 310.

[0038] As shown in Figure 6, one of the pair of protrusions 34 protrudes from the outer surface (left side) of the left plate portion 313 toward the left side plate 221. That is, the one protrusion 34 protrudes outward (to the left) from the outer surface of the left plate portion 313. The one protrusion 34 corresponds to the recess 26 in the left side plate 221. That is, the one protrusion 34 is inserted into the recess 26 in the left side plate 221.

[0039] On the other hand, the remaining protrusion 34 of the pair of protrusions 34 protrudes from the outer surface (right side) of the right plate portion 313 toward the right side plate 222. That is, the remaining protrusion 34 protrudes outward (to the right) from the outer surface of the right plate portion 313. That is, the remaining protrusion 34 corresponds to the recess 26 in the right side plate 221. In other words, the remaining protrusion 34 is inserted into the recess 26 in the right side plate 221.

[0040] In this embodiment, the first switching plate 31 is attached to the pair of side plates 22 by inserting each of the pair of protrusions 34 into the corresponding recesses 26 from above. The top plate 23 is attached to the pair of side plates 22 from above while each of the pair of protrusions 34 is inserted into the corresponding recesses 26, thereby preventing each of the pair of protrusions 34 from coming out of the corresponding recesses 26 and fixing the first switching plate 31 to the pair of side plates 22.

[0041] As shown in Figure 2, the first power supply unit 41 includes a mobile outlet 411 and a cover 412. The mobile outlet 411 can be connected to a mobile cable that is electrically connected to a mobile device. For example, the mobile cable has a plug consisting of three pins, and the mobile outlet 411 is an outlet that has three holes into which the three pins can be inserted.

[0042] The mobile outlet 411 is electrically connected to the second wire W2. The second wire W2 is electrically connected to the first wire W1, which is electrically connected to the external power supply, by a terminal block 5. Therefore, when the mobile cable connected to the mobile outlet 411 is electrically connected to the mobile unit (its power supply port), the first power supply unit 41 supplies power output from the external power supply to the mobile unit. In this disclosure, "external power supply" refers to, for example, an AC power supply such as a commercial AC power supply, or a DC power supply such as a power generation device (such as a solar power generation device) or storage battery installed at a facility.

[0043] The mobile outlet 411 is covered by the cover 412 when the cover 412 is closed. Therefore, the user opens the cover 412 and connects the mobile cable to the exposed mobile outlet 411.

[0044] (2.4) Second switching plate As shown in Figure 3, the second switching plate 32 is configured to allow installation of a second power supply unit 42, which is a power supply unit 4 having a nozzle 421, and the target of power supply is a moving object. The second switching plate 32 is made of a metal material. As an example, the second switching plate 32 is made of anodized aluminum material.

[0045] The second switching plate 32 has a main plate portion 320 which is rectangular in shape. The dimensions of the main plate portion 320 in the vertical and horizontal directions are the same as the dimensions of the opening 21 of the main body portion 2 in the vertical and horizontal directions. Here, "same" does not mean strictly identical, and an error is permitted. The range of the permitted error is, for example, about 5%.

[0046] As shown in Figure 1, the main plate portion 320 is provided with two through holes 321 and four screw holes 322.

[0047] One of the two through-holes 321 is through which the second wire W2, electrically connected to the second power supply unit 42, is inserted. The other of the two through-holes 321 is through which a wire different from the second wire W2 (for example, a ground wire, a communication wire, etc.), which is electrically connected to the second power supply unit 42, is inserted. Each of the two through-holes 321 is circular in shape when viewed from the thickness direction of the main plate portion 320. Each of the two through-holes 321 is located in the center of the lower part of the main plate portion 310.

[0048] The second power supply unit 42 is installed on the second switching plate 32 by fastening screws to each of the four screw holes 322 that surround the second power supply unit 42. The four screw holes 322 are located at the four corners of the main plate 320.

[0049] The second switching plate 32, like the first switching plate 31, has a pair of protrusions 34 that project toward the corresponding side plate 22 when attached to the opening 21 of the main body 2. The top plate 23 is attached to the pair of side plates 22 with each of the pair of protrusions 34 inserted into the corresponding recesses 26, thereby fixing the first switching plate 31 to the pair of side plates 22. This configuration has the advantage that the second switching plate 32 is less likely to come off the pair of side plates 22.

[0050] Since the configuration of the pair of protrusions 34 in the second switching plate 32 of this embodiment is the same as the configuration of the pair of protrusions 34 in the first switching plate 31, a detailed explanation will be omitted.

[0051] As shown in Figure 3, the second power supply unit 42 includes a nozzle 421, a cable 422, a holder 423, and a hook 424.

[0052] The nozzle 421 is electrically connected to the second wire W2 via cable 422. The second wire W2 is electrically connected to the first wire W1, which is electrically connected to an external power supply, by terminal block 5. Therefore, when the nozzle 421 is electrically connected to the mobile body (its power supply port), the second power supply unit 42 supplies power output from the external power supply to the mobile body.

[0053] The holder 423 holds the nozzle 421. For example, the nozzle 421 is held by the holder 423 when it is not electrically connected to the mobile body. When the user electrically connects the nozzle 421 to the mobile body, the nozzle 421 held by the holder 423 is removed from the holder 423. The cable 422 is attached to the hook 424. For example, the cable 422 is attached to the hook 424 when the nozzle 421 is held by the holder 423.

[0054] (2.5) Terminal block As shown in Figure 4, terminal block 5 is electrically connected to both the first wire W1 and the second wire W2, making them electrically conductive. The first wire W1 is electrically connected to an external power supply. The second wire W2 is electrically connected to the power supply unit 4, which is either the first power supply unit 41 or the second power supply unit 42. More specifically, the second wire W2 is electrically connected to the first power supply unit 41 when the first switching plate 31 is attached to the opening 21 of the main body 2 and the first power supply unit 41 is installed on the first switching plate 31. On the other hand, the second wire W2 is electrically connected to the second power supply unit 42 when the second switching plate 32 is attached to the opening 21 of the main body 2 and the second power supply unit 42 is installed on the second switching plate 32. Note that the first wire W1 and the second wire W2 are omitted in Figures 1 and 5.

[0055] The second wire W2 is a wire of a different thickness (i.e., a different diameter) than the first wire W1. In this embodiment, the first wire W1 is a wire that is thicker than the second wire W2 (has a larger diameter than the first wire W1). The above configuration has the advantage of suppressing voltage drop when power is supplied from the external power source to the terminal block 5. Furthermore, since the second wire W2 is thinner than the first wire W1, it has the advantage of making it easier to route the second wire W2 when electrically connecting it to the power supply section 4. It also has the advantage of reducing the cost associated with the second wire W2.

[0056] As shown in Figure 5, the terminal block 5 is installed on the mounting plate 6 of the main body 2 so as to overlap the opening 21 when viewed from the side (front side) where the opening 21 is provided in the main body 2. In other words, the terminal block 5 is installed on the mounting plate 6 of the main body 2 so as to be exposed from the opening 21 when viewed from the side (front side) where the opening 21 is provided in the main body 2. With this configuration, the user can see the terminal block 5 when viewed from the side (front side) where the opening 21 is provided in the main body 2. This has the advantage of making the wiring work of electrically connecting the first wire W1 and the second wire W2 to the terminal block 5 easier.

[0057] (3) Effects The power supply pole 1 of this embodiment comprises a main body 2. The main body 2 supports a power supply unit 4 that supplies power to the power supply target. The main body 2 has an opening 21. A first switching plate 31 and a second switching plate 32 are interchangeably mounted in the opening 21 as switching plates 3. The first switching plate 31 is configured to allow installation of a first power supply unit 41 as a power supply unit 4 having a mobile outlet 411, where the power supply target is a mobile object. A mobile cable electrically connected to the mobile object can be connected to the mobile outlet 411. The second switching plate 32 is configured to allow installation of a second power supply unit 42 as a power supply unit 4 having a nozzle 421, where the power supply target is a mobile object. The nozzle 421 can be electrically connected to the mobile object. Thus, the power supply pole 1 of this embodiment can interchangeably install both a first power supply unit 41 having a mobile outlet 411 and a second power supply unit 42 having a nozzle 421. In other words, the power supply pole 1 of this embodiment has the advantage of being able to accommodate multiple types of power supply units 4.

[0058] The power supply pole 1 of this embodiment further includes a terminal block 5. The terminal block 5 is electrically connected to both a first wire W1, which is electrically connected to an external power source, and a second wire W2, which is electrically connected to the power supply unit 4 and has a different thickness than the first wire W1. The terminal block 5 makes the first wire W1 and the second wire W2 electrically connected. This has the advantage of suppressing voltage drop when power is supplied from the external power source to the terminal block 5. Furthermore, since the second wire W2 is thinner than the first wire W1, it has the advantage of making it easier to route the second wire W2 when electrically connecting it to the power supply unit 4. It also has the advantage of reducing the cost associated with the second wire W2.

[0059] In the power supply pole 1 of this embodiment, the terminal block 5 is installed on the mounting plate 6 of the main body 2 so as to overlap the opening 21 when viewed from the side (front side) where the opening 21 is provided in the main body 2. This allows the user to see the terminal block 5 when viewed from the side (front side) where the opening 21 is provided in the main body 2. This has the advantage of making the wiring work of electrically connecting the first wire W1 and the second wire W2 to the terminal block 5 easier.

[0060] In the power supply pole 1 of this embodiment, the main body 2 has a pair of side plates 22 and a top plate 23. When the switching plate 3 is attached to the opening 21, it has a pair of protrusions 34 that project toward the corresponding side plate 22 of the pair of side plates 22. Each of the pair of side plates 22 has a recess 26 into which the corresponding protrusion 34 of the pair of protrusions 34 is inserted. The top plate 23 is attached to the pair of side plates 22 when each of the pair of protrusions 34 is inserted into the corresponding recess 26, thereby fixing the switching plate 3 to the pair of side plates 22. This has the advantage that the switching plate 3 is less likely to come off the pair of side plates 22.

[0061] (4) Variations The embodiments described above are merely one of many embodiments of this disclosure. The embodiments described above can be modified in various ways depending on the design, etc., as long as the objectives of this disclosure are achieved. The following modifications may be implemented by combining them as appropriate. Components similar to those in the embodiments described above are denoted by the same reference numerals and their description is omitted.

[0062] (4.1) First variation In the power supply pole 1 of the above-described embodiment, the switching plate 3 has a pair of protrusions 34, and each of the pair of side plates 22 has a recess 26 into which the corresponding protrusion 34 of the pair of protrusions 34 is inserted. However, in the power supply pole 1A of the first modified example shown in Figure 7, the switching plate 3A has a pair of protrusions 35, and each of the pair of side plates 22A has a rib portion 27 into which the corresponding protrusion 35 of the pair of protrusions 35 is inserted.

[0063] The first modified power supply pole 1A comprises a main body 2A, a switching plate 3A, and a terminal block 5. The first modified power supply pole 1A comprises a first switching plate 31 and a second switching plate 32 as the switching plate 3A. In the following description, when the first switching plate 31 and the second switching plate 32 of the first modified example are not distinguished, they will be referred to as switching plate 3A.

[0064] The main body 2A is a hollow rectangular box shape with an opening 21 on the front side. A first switching plate 31 and a second switching plate 32 are interchangeably mounted in the opening 21 as switching plates 3A.

[0065] The main body 2A includes a pair of side plates 22A, a top plate 23, a front plate 24, and a rear plate 25. Each of the pair of side plates 22A has a rib portion 27 (see Figure 7). The corresponding protrusion 35 of the pair of protrusions 35 of the switching plate 3A, which will be described later, is inserted into the rib portion 27. Specifically, the rib portion 27 is composed of a pair of convex portions that face each other along the front-rear direction. The corresponding protrusion 35 of the pair of protrusions 35 is inserted into the gap formed by the pair of convex portions.

[0066] The rib portion 27 is provided on the inner surface of each of the pair of side plates 22A. More specifically, the rib portion 27 on the left side plate 221 is provided at the front end of the inner surface (right side) of the left side plate 221, as shown in Figure 7. Similarly, the rib portion 27 on the right side plate 221 is provided at the front end of the inner surface (left side) of the right side plate 221.

[0067] In the first modified example, the first switching plate 31, when attached to the opening 21 of the main body 2A, has a pair of protrusions 35 that project toward the corresponding side plate 22A of the pair of side plates 22A. The top plate 23 is attached to the pair of side plates 22A with each of the pair of protrusions 35 inserted into the corresponding rib portion 27, thereby fixing the first switching plate 31 to the pair of side plates 22A. This configuration has the advantage that the first switching plate 31 is less likely to come off the pair of side plates 22A.

[0068] In the first modified example, the main plate portion 310 of the first switching plate 31 has recesses 3141 on both the left end face 314 and the right end face. The recess 3141 on the left end face 314 extends vertically across the left end face 314. Similarly, the recess 3141 on the right end face extends vertically across the right end face.

[0069] As shown in Figure 7, one of the pair of protrusions 35 protrudes from the bottom surface of the recess 3141 on the left end face 314 of the main plate portion 310 toward the left side plate 221. That is, the one protrusion 35 protrudes outward (to the left) from the bottom surface of the recess 3141 on the left end face 314 of the main plate portion 310. The one protrusion 35 corresponds to the rib portion 27 on the left side plate 221. That is, the one protrusion 35 is inserted into the rib portion 27 on the left side plate 221.

[0070] On the other hand, the remaining protrusion 35 of the pair of protrusions 35 protrudes from the bottom surface of the recess 3141 on the right end face of the main plate portion 310 toward the right side plate 222. That is, the remaining protrusion 35 protrudes outward (to the right) from the bottom surface of the recess 3141 on the right end face of the main plate portion 310. The remaining protrusion 35 corresponds to the rib portion 27 on the right side plate 221. That is, the remaining protrusion 35 is inserted into the rib portion 27 on the right side plate 221.

[0071] In the first modified example, the tip of each of the pair of protrusions 35 on the first switching plate 31 is located outward from the inner surface of the corresponding side plate 22A on which the rib portion 27 is provided, when viewed from the side (upper side) where the top plate 23 is attached to the pair of side plates 22A, while the first switching plate 31 is attached to the opening 21. This configuration has the advantage of preventing foreign matter (e.g., water, sand, etc.) from entering the interior of the main body 2A through the gap between the first switching plate 31 and the main body 2A.

[0072] More specifically, as shown in Figure 7, the tip of one of the pair of protrusions 35 is located outward (to the left) of the inner surface of the left side plate 221 when the top plate 23 is attached to the pair of side plates 22A, in the state in which the first switching plate 31 is attached to the opening 21. In other words, the tip of the one of the protrusions 35 is located outward (to the left) of the left end surface 314 of the main plate portion 310 when the top plate 23 is attached to the pair of side plates 22A, in the state in which the first switching plate 31 is attached to the opening 21.

[0073] On the other hand, the tip of the remaining protrusion 35 of the pair of protrusions 35 is located outward (to the right) from the inner surface of the right side plate 221 when the top plate 23 is attached to the pair of side plates 22A, in the state in which the first switching plate 31 is attached to the opening 21. In other words, the tip of the remaining protrusion 35 is located outward (to the right) from the right end surface of the main plate portion 310 when the top plate 23 is attached to the pair of side plates 22A, in the state in which the first switching plate 31 is attached to the opening 21.

[0074] The second switching plate 32 of the first modified example, like the first switching plate 31, has a pair of protrusions 35 that project toward the corresponding side plate 22A when attached to the opening 21 of the main body 2A. The top plate 23 is attached to the pair of side plates 22A with each of the pair of protrusions 35 inserted into the corresponding rib portion 27, thereby fixing the second switching plate 32 to the pair of side plates 22A. This configuration has the advantage that the second switching plate 32 is less likely to come off the pair of side plates 22A.

[0075] In the first modified example, the tip of each of the pair of protrusions 35 on the second switching plate 32 is located outward from the inner surface of the corresponding side plate 22A on which the rib portion 27 is provided, when the second switching plate 32 is attached to the opening 21 and viewed from the side (upper side) where the top plate 23 is attached to the pair of side plates 22A. This configuration has the advantage of preventing foreign matter (e.g., water, sand, etc.) from entering the interior of the main body 2A through the gap between the second switching plate 32 and the main body 2A.

[0076] Note that the configuration of the pair of protrusions 35 in the second switching plate 32 of the first modified example is the same as the configuration of the pair of protrusions 35 in the first switching plate 31 of the first modified example, so a detailed explanation will be omitted.

[0077] (4.2) Second variation In the power supply pole 1 of the above-described embodiment, the switching plate 3 has a pair of protrusions 34, and each of the pair of side plates 22 has a recess 26 into which the corresponding protrusion 34 of the pair of protrusions 34 is inserted. However, in the power supply pole 1B of the second modified example shown in Figure 8, each of the pair of side plates 22B has a protrusion 28, and the switching plate 3B has a pair of recesses 36 into which the corresponding protrusions 28 of each of the pair of side plates 22B are inserted.

[0078] The second modified power supply pole 1B comprises a main body 2B, a switching plate 3B, and a terminal block 5. The second modified power supply pole 1B comprises a first switching plate 31 and a second switching plate 32 as the switching plate 3B. In the following description, when the first switching plate 31 and the second switching plate 32 of the second modified version are not distinguished, they will be referred to as switching plate 3B.

[0079] The main body 2B is a hollow rectangular box shape with an opening 21 on the front side. The first switching plate 31 and the second switching plate 32 are interchangeably attached to the opening 21 as switching plates 3B.

[0080] The main body 2B includes a pair of side plates 22B, a top plate 23, a front plate 24, and a rear plate 25. Each of the pair of side plates 22B has a projection 28 (see Figure 8). The projection 28 protrudes toward the switching plate 3B when the switching plate 3B is attached to the opening 21. The projection 28 is provided on the inner surface of each of the pair of side plates 22B.

[0081] More specifically, in the second modified example, the protrusion 28 on the left side plate 221 is provided at the front end of the inner surface (right side) of the left side plate 221, as shown in Figure 8, and protrudes inward (to the right). On the other hand, in the second modified example, the protrusion 28 on the right side plate 222 is provided at the front end of the inner surface (left side) of the right side plate 221, and protrudes inward (to the left).

[0082] In the second modified example, the first switching plate 31 has a pair of recesses 36 into which the corresponding protrusions 28 of each of the pair of side plates 22B are inserted. The top plate 23 is attached to the pair of side plates 22B with the corresponding protrusions 28 inserted into each of the pair of recesses 36, thereby fixing the first switching plate 31 to the pair of side plates 22B. This configuration has the advantage that the first switching plate 31 is less likely to come off the pair of side plates 22B.

[0083] In the second modified example, the main plate portion 310 of the first switching plate 31 is provided with two plate portions 313 that protrude to the rear. The two plate portions 313 face each other along the left-right direction. Of the two plate portions 313, the left plate portion 313 (see Figure 8) protrudes to the rear from the left edge of the inner surface (rear side) of the main plate portion 310. On the other hand, the right plate portion 313 of the two plate portions 313 protrudes to the rear from the right edge of the inner surface (rear side) of the main plate portion 310.

[0084] As shown in Figure 8, one of the pair of recesses 36 is provided on the outer surface (left side) of the left plate portion 313. This one recess 36 corresponds to the protrusion 28 on the left side plate 221. In other words, the protrusion 28 on the left side plate 221 is inserted into this one recess 36.

[0085] On the other hand, the remaining recess 36 of the pair of recesses 36 is provided on the outer surface (right side) of the right plate portion 313. The remaining recess 36 corresponds to the protrusion 28 on the right side plate 221. That is, the protrusion 28 on the right side plate 221 is inserted into the remaining recess 36.

[0086] The second switching plate 32 of the second modified example has a pair of recesses 36 into which corresponding protrusions 28 on each of the pair of side plates 22B are inserted, similar to the first switching plate 31. The top plate 23 is attached to the pair of side plates 22B with the corresponding protrusions 28 inserted into each of the pair of recesses 36, thereby fixing the second switching plate 32 to the pair of side plates 22B. This configuration has the advantage that the second switching plate 32 is less likely to come off the pair of side plates 22B.

[0087] Note that the configuration of the pair of recesses 36 in the second switching plate 32 of the second modified example is the same as the configuration of the pair of recesses 36 in the first switching plate 31 of the second modified example, so a detailed explanation is omitted.

[0088] (4.3) Third Variation The third modified power supply pole 1C shown in Figure 9, like the power supply pole 1B of the second modified example, has a pair of side plates 22C, each of which has a projection 28, and the switching plate 3C has a pair of first recesses 36 into which the corresponding projections 28 on each of the pair of side plates 22C are inserted.

[0089] Note that the configuration of the pair of side plates 22C in the third modified example is the same as the configuration of the pair of side plates 22B in the second modified example, so a detailed explanation will be omitted.

[0090] In the third modified example, the first switching plate 31 has a pair of first recesses 36 into which the corresponding protrusions 28 of each of the pair of side plates 22C are inserted. The top plate 23 is attached to the pair of side plates 22C with the protrusions 28 corresponding to each of the pair of first recesses 36 inserted, thereby fixing the first switching plate 31 to the pair of side plates 22C. This configuration has the advantage that the first switching plate 31 is less likely to come off the pair of side plates 22C.

[0091] Unlike the second modification, in the third modified example, one of the pair of first recesses 36 is provided on the left end face 314 of the main plate portion 310 of the first switching plate 31, as shown in Figure 9. The above-mentioned first recess 36 corresponds to the protrusion 28 on the left side plate 221. That is, the protrusion 28 on the left side plate 221 is inserted into the above-mentioned first recess 36.

[0092] On the other hand, in the third modified example, the remaining first recess 36 of the pair of first recesses 36 is provided on the right end face of the main plate portion 310 of the first switching plate 31, unlike in the second modified example. The remaining first recess 36 corresponds to the protrusion 28 on the right side plate 221. That is, the protrusion 28 on the right side plate 221 is inserted into the remaining first recess 36.

[0093] The first switching plate 31 of the third modified example differs from the second modified example in that it further has a pair of second recesses 37, each of which is a different recess from the pair of first recesses 36, and which are provided on the outside (front side) of the pair of first recesses 36. This configuration has the advantage of preventing foreign matter (e.g., water, sand, etc.) from entering the interior of the main body 2C through the gap between the first switching plate 31 and the main body 2C.

[0094] More specifically, one of the pair of second recesses 37 is located on the left end face 314 of the main plate portion 310 of the first switching plate 31, as shown in Figure 9, and is positioned outward (front) of the one first recess 36. The other second recess 37 is located on the right end face of the main plate portion 310 of the first switching plate 31, and is positioned outward (front) of the remaining first recess 36.

[0095] The second switching plate 32 of the third modified example has a pair of first recesses 36 into which the corresponding protrusions 28 of each of the pair of side plates 22C are inserted, similar to the first switching plate 31. The top plate 23 is attached to the pair of side plates 22C with the corresponding protrusions 28 of each of the pair of recesses 36 inserted, thereby fixing the second switching plate 32 to the pair of side plates 22C. This configuration has the advantage that the second switching plate 32 is less likely to come off the pair of side plates 22C.

[0096] Note that the configuration of the pair of first recesses 36 in the second switching plate 32 of the third modified example is the same as the configuration of the pair of first recesses 36 in the first switching plate 31 of the third modified example, so a detailed explanation is omitted.

[0097] The second switching plate 32 of the third modified example, like the first switching plate 31, further has a pair of second recesses 37 which are different from each of the pair of first recesses 36 and are provided on the outside (front side) of the pair of first recesses 36. This configuration has the advantage that it can prevent foreign matter (e.g., water, sand, etc.) from entering the interior of the main body 2C through the gap between the second switching plate 32 and the main body 2C.

[0098] Note that the configuration of the pair of second recesses 37 in the second switching plate 32 of the third modified example is the same as the configuration of the pair of second recesses 37 in the first switching plate 31 of the third modified example, so a detailed explanation will be omitted.

[0099] (4.4) Other variations The following are some variations of the above-described embodiment. These variations may be implemented in combination as appropriate.

[0100] In the power supply pole 1 of the above-described embodiment, two switching plates, a first switching plate 31 and a second switching plate 32, are interchangeably mounted as switching plates 3 in the opening 21. However, in the power supply pole 1, two switching plates, a first switching plate 31 and a third switching plate 33 (Figure 10), are interchangeably mounted as switching plates 3 in the opening 21. The third switching plate 33 is configured such that the power supply target is a load device different from a mobile body, and a third power supply unit 43, which is a power supply unit 4 having a load outlet 431, can be installed. The load outlet 431 can be connected to a load cable (for example, the power plug of the load device) that is electrically connected to the load device. Specifically, the load outlet 431 is an outlet into which the power plug of the load device is inserted. In this disclosure, "load device" refers to electrical equipment such as lighting fixtures and power tools. Note that the third switching plate 33 and the third power supply unit 43 shown in Figure 10 are examples, and their shapes and configurations may differ.

[0101] Furthermore, in the power supply pole 1, two switching plates, a second switching plate 32 and a third switching plate 33, may be interchangeably mounted in the opening 21 as switching plates 3. In addition, in the power supply pole 1, three switching plates, a first switching plate 31, a second switching plate 32, and a third switching plate 33, may be interchangeably mounted in the opening 21 as switching plates 3. That is, in the power supply pole 1, it is sufficient that at least two of the first switching plate 31, the second switching plate 32, and the third switching plate 33 can be interchangeably mounted in the opening 21 as switching plates 3.

[0102] (summary) The first embodiment of the power supply pole (1, 1A, 1B, 1C) comprises a main body (2, 2A, 2B, 2C) that supports a power supply unit (4) that supplies power to the object to be powered. The main body (2, 2A, 2B, 2C) has an opening (21) to which at least two of the first switching plate (31), second switching plate (32), and third switching plate (33) are interchangeably attached as switching plates (3, 3A, 3B, 3C). The first switching plate (31) is configured to allow the installation of a first power supply unit (41) as a power supply unit (4) having a mobile outlet (411) when the object to be powered is a mobile object. The mobile outlet (411) is to which a mobile cable electrically connected to the mobile object can be connected. The second switching plate (32) is configured to allow the installation of a second power supply unit (42) as a power supply unit (4) having a nozzle (421) when the object to be powered is a mobile object. The nozzle (421) can be electrically connected to the mobile body. The third switching plate (33) is configured to allow the installation of a third power supply unit (43) as a power supply unit (4) having a load outlet (431) for a load device that is powered by a load device different from the mobile body. The load outlet (431) can be connected to a load cable that is electrically connected to the load device.

[0103] This embodiment has the advantage of being able to accommodate multiple types of power supply units (4).

[0104] The power supply poles (1, 1A, 1B, 1C) of the second embodiment further include a terminal block (5) in the first embodiment. The terminal block (5) is electrically connected to both a first wire (W1) which is electrically connected to an external power source and a second wire (W2) which is electrically connected to the power supply unit (4) and has a different thickness than the first wire (W1), thereby making the first wire (W1) and the second wire (W2) electrically conductive.

[0105] This configuration has the advantage of suppressing voltage drop when power is supplied from an external power source to the terminal block (5). Furthermore, since the second wire (W2) is thinner than the first wire (W1), it has the advantage of making it easier to route the second wire (W2) when electrically connecting it to the power supply unit (4). It also has the advantage of reducing the cost associated with the second wire (W2).

[0106] In the third embodiment of the power supply pole (1, 1A, 1B, 1C), in the second embodiment, the terminal block (5) is installed on the main body (2, 2A, 2B, 2C) such that it overlaps the opening (21) when viewed from the side where the opening (21) is provided in the main body (2, 2A, 2B, 2C).

[0107] This embodiment has the advantage of simplifying the wiring work involved in electrically connecting the first wire (W1) and the second wire (W2) to the terminal block (5).

[0108] In the fourth embodiment of the power supply pole (1), in any one of the first to third embodiments, the main body (2) has a pair of side plates (22) and a top plate (23). The switching plate (3), when attached to the opening (21), has a pair of protrusions (34) that project toward the corresponding side plate (22) of the pair of side plates (22). Each of the pair of side plates (22) has a recess (26) into which the corresponding protrusion (34) of the pair of protrusions (34) is inserted. The top plate (23) is attached to the pair of side plates (22) with each of the pair of protrusions (34) inserted into the corresponding recess (26), thereby fixing the switching plate (3) to the pair of side plates (22).

[0109] This embodiment has the advantage that the switching plate (3) is less likely to come off the pair of side plates (22).

[0110] In the fifth embodiment of the power supply pole (1A), in any one of the first to third embodiments, the main body (2A) has a pair of side plates (22A) and a top plate (23). The switching plate (3A), when attached to the opening (21), has a pair of protrusions (35) that project toward the corresponding side plate (22A) of the pair of side plates (22A). Each of the pair of side plates (22A) has a rib portion (27) into which the corresponding protrusion (35) of the pair of protrusions (35) is inserted. The top plate (23) is attached to the pair of side plates (22A) with each of the pair of protrusions (35) inserted into the corresponding rib portion (27), thereby fixing the switching plate (3A) to the pair of side plates (22A).

[0111] This embodiment has the advantage that the switching plate (3A) is less likely to come off the pair of side plates (22A).

[0112] In the sixth embodiment of the power supply pole (1A), in the fifth embodiment, the tip of each of the pair of protrusions (35) is located outward from the inner surface of the corresponding side plate (22A) on which the rib portion (27) is provided, when viewed from the side on which the top plate (23) is attached to the pair of side plates (22A) when the switching plate (3A) is attached to the opening (21).

[0113] This embodiment has the advantage of preventing foreign matter from entering the interior of the main body (2A) through the gap between the switching plate (3A) and the main body (2A).

[0114] In the seventh embodiment of the power supply pole (1B, 1C), in any one of the first to third embodiments, the main body (2B, 2C) has a pair of side plates (22B, 22C) and a top plate (23). Each of the pair of side plates (22B, 22C) has a projection (28) that protrudes toward the switching plate (3B, 3C) when the switching plate (3B, 3C) is attached to the opening (21). The switching plate (3B, 3C) has a pair of recesses (36) into which the corresponding projection (28) of each of the pair of side plates (22B, 22C) is inserted. The top plate (23) fixes the switching plate (3B, 3C) to the pair of side plates (22B, 22C) by being attached to the pair of side plates (22B, 22C) when the projection (28) corresponding to each of the pair of recesses (36) is inserted.

[0115] This embodiment has the advantage that the switching plates (3B, 3C) are less likely to come off the pair of side plates (22B, 22C).

[0116] In the eighth embodiment of the power supply pole (1C), in the seventh embodiment, the switching plate (3C) further has a second recess (37) which is a different recess from each of the pair of first recesses (36) which are a pair of recesses (36), and is provided outside the pair of first recesses (36).

[0117] This embodiment has the advantage of preventing foreign matter from entering the interior of the main body (2C) through the gap between the switching plate (3C) and the main body (2C). [Explanation of symbols]

[0118] 1, 1A, 1B, 1C Power supply pole 2, 2A, 2B, 2C Main body 21 Opening 22, 22A, 22B, 22C side plate 23 Top plate 26 recesses 27 Rib section 28 Protrusion 3, 3A, 3B, 3C switching board 31. First switching plate 32. Second switching plate 33. Third switching plate 34, 35 Protrusion 36. First recess (recess) 37. Second recess 4 Power supply section 5 Terminal block 41. First Power Supply Unit 411 Mobile outlet 42 Second Power Supply Unit 421 Nozzles 43 Third Power Supply Unit 431 Load outlet W1 First wire W2 Second wire

Claims

1. It includes a main body that supports the power supply unit that supplies power to the target of power supply, The main body has an opening into which at least two of the first switching plate, the second switching plate, and the third switching plate are interchangeably mounted as switching plates. The first switching plate is configured such that the power supply target is a mobile object, and a first power supply unit having a power outlet for a mobile object can be installed on it. The aforementioned mobile outlet is capable of receiving a mobile cable that is electrically connected to the mobile unit. The second switching plate is configured such that the target of power supply is the moving body, and a second power supply unit having a nozzle can be installed on it. The nozzle is electrically connectable to the moving body, The third switching plate is configured such that the power supply target is a load device different from the mobile body, and a third power supply unit having a load outlet can be installed as the power supply unit. The aforementioned load outlet is capable of receiving a load cable that is electrically connected to the load equipment. Power supply pole.

2. A terminal block is further provided to electrically connect both a first wire electrically connected to an external power source and a second wire electrically connected to the power supply unit and having a different thickness than the first wire, thereby making the first wire and the second wire electrically conductive. The power supply pole according to claim 1.

3. The terminal block is installed on the main body so as to overlap the opening when viewed from the side of the main body where the opening is provided. The power supply pole according to claim 2.

4. The main body has a pair of side panels and a top panel. The switching plate, when attached to the opening, has a pair of protrusions that project toward the corresponding side plate of the pair of side plates, Each of the pair of side plates has a recess into which a corresponding protrusion from the pair of protrusions is inserted. The top plate is attached to the pair of side plates with each of the pair of protrusions inserted into the corresponding recess, thereby fixing the switching plate to the pair of side plates. The power supply pole according to claim 1.

5. The main body has a pair of side panels and a top panel. The switching plate, when attached to the opening, has a pair of protrusions that project toward the corresponding side plate of the pair of side plates, Each of the pair of side plates has a rib portion into which a corresponding protrusion from the pair of protrusions is inserted. The top plate is attached to the pair of side plates with each of the pair of protrusions inserted into the corresponding rib portion, thereby fixing the switching plate to the pair of side plates. The power supply pole according to claim 1.

6. The tip of each of the pair of protrusions, when viewed from the side on which the top plate is attached to the pair of side plates, is located outward from the inner surface of the corresponding side plate on which the rib portion is provided, when the switching plate is attached to the opening. The power supply pole according to claim 5.

7. The main body has a pair of side panels and a top panel. Each of the pair of side plates has a protruding portion that extends toward the switching plate when the switching plate is attached to the opening, The switching plate has a pair of recesses into which the corresponding protrusions of each of the pair of side plates are inserted. The top plate is attached to the pair of side plates with the protrusions corresponding to each of the pair of recesses inserted, thereby fixing the switching plate to the pair of side plates. The power supply pole according to claim 1.

8. The switching plate further has a second recess which is different from each of the pair of first recesses and is provided outside the pair of first recesses. The power supply pole according to claim 7.

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