Power switch and electric apparatus

Abstract

To prevent water droplets due to condensation from entering.SOLUTION: A power switch includes a communication unit communicatively connected to an external device, a relay that opens and closes an electric circuit that supplies power from a power source to a load, a control unit that controls the relay based on information received from the external device via the communication unit, and an output connector to which an output cable is connected that outputs the power input from the power source toward the load. The connection surface of the output connector, where an insertion port opens to which the output cable is connected, is provided in an inclined manner so as to face downward in a use state.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a power switch and an electric device. [Background technology]

[0002] Conventionally, when condensation occurs on a cable in cable-connected devices installed outdoors with the cable extending horizontally from the device, there is a concern that water droplets may travel down the cable and get inside the device, causing a short circuit.

[0003] Patent Document 1 discloses a control device housed in an EV charging stand, but because the device is configured to be stored in a storage compartment below ground, the technology is intended to prevent electrical components from becoming submerged in water due to heavy rain, and does not disclose measures to prevent water droplets caused by condensation from entering the equipment through the cables. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2023-46536 A Summary of the Invention [Problem to be solved by the invention]

[0005] The present invention has been made in consideration of the above-mentioned problems, and has an object to provide a technique for preventing the intrusion of water droplets due to condensation. [Means for solving the problem]

[0006] To solve the above problems, the present invention provides: A communication unit communicably connected to an external device; A relay that opens and closes the circuit that supplies power from the power source to the load; a control unit that controls the relay based on information received from the external device via the communication unit; an output connector to which an output cable is connected that outputs the power input from the power source toward the load; A power switch having The output connector has a connection surface, which is an opening for connecting the output cable, and is inclined so as to face downward when in use.

[0007] According to this, if water droplets form on the output cable due to condensation, since the output cable is pulled downward from the socket on the connection surface of the output connector, the water droplets on the output cable will move to the opposite side of the connection surface of the output connector, preventing the water droplets from entering the power switch from the output connector along the output cable.

[0008] In the present invention, a housing that houses the communication unit, the relay, the control unit, and the output connector; The housing includes: In the use state, a sloped surface may be provided that is continuous with a lower end of the connection surface that is exposed from the housing and is inclined upward.

[0009] According to this, the inclined surface portion in the use state is provided so as to be continuous with the lower end portion of the connection surface exposed from the housing and to be inclined upward, so that water droplets adhering to the connection surface flow along the connection surface. Since the water drops to the lower end and then drops downward along the slope, it is possible to prevent water droplets from entering the power switch through the connection surface of the output connector.

[0010] In the present invention, In the above-mentioned usage state, A first opening provided on a surface of the housing extending in a vertical direction; a second opening provided at a position retracted inside the housing and inclined downward, through which the connection surface is exposed; Equipped with The inclined surface portion may be formed to continue from a lower edge of the second opening portion to a lower edge of the first opening portion.

[0011] This makes it possible to configure the connection surface and the slope of the output connector without increasing the volume of the housing.

[0012] In the present invention, The connection surface and / or the inclined surface may form a guide portion that guides falling water droplets.

[0013] This allows water droplets formed due to condensation to fall along either or both of the connection surface and the slope of the output connector, thereby preventing the water droplets from entering the power switch.

[0014] In the present invention, an input connector to which an input cable for inputting the power from the power supply is connected; The second socket to which the input cable is connected may be provided so as to open downward in the usage state.

[0015] According to this, when in use, the input cable is connected from below to the second socket that opens facing downwards, so that water droplets caused by condensation can be prevented from entering the power switch via the input connector.

[0016] The present invention also provides a method for producing a method for manufacturing a semiconductor device comprising the steps of: A communication unit that is communicably connected to an external device; an output connector to which an output line is connected; a relay for opening and closing a line connected to the output connector; a control unit that controls the relay based on information received from the external device via the communication unit; An electrical device having The output connector has a connection surface that opens into a socket to which the output line is connected and is inclined so as to face downward when in use.

[0017] According to this, if water droplets adhere to the output line due to condensation, since the output line is pulled downward from the socket on the connection surface of the output connector, the water droplets adhering to the output line will move to the opposite side of the connection surface of the output connector, preventing the water droplets from entering the electrical equipment through the output connector along the output line. Effect of the Invention

[0018] According to the present invention, it is possible to prevent the intrusion of water droplets due to condensation. [Brief description of the drawings]

[0019] [Figure 1] 1 is a diagram showing an outline of the overall configuration of a charging system according to a first embodiment of the present invention. [Diagram 2] 1 is an external perspective view of a power switching module according to a first embodiment of the present invention; [Diagram 3] FIG. 2 is an exploded perspective view of the power switching module according to the first embodiment of the present invention. [Figure 4] 1 is a schematic cross-sectional view of a power switching module according to a first embodiment of the present invention. [Diagram 5] 1 is a cross-sectional view showing a state in which an output connector of the power switching module according to the first embodiment of the present invention is used. [Figure 6] 1 is a partial cross-sectional view showing a state in which the periphery of an output connector of the power switching module according to the first embodiment of the present invention is used. [Figure 7] 4 is another schematic cross-sectional view of the power switching module according to the first embodiment of the present invention. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] [Application example] Hereinafter, application examples of the present invention will be described with reference to the drawings. Fig. 2 is a schematic perspective view of the power switching module 100 used in the charging system 200 shown in Fig. 1. Fig. 3 is an exploded perspective view of the power switching module 100, and Fig. 4 is a schematic cross-sectional view of the power switching module 100.

[0021] The charging system 200 includes an EV charging outlet 220, a power switching module 100 that opens and closes an electric circuit PL1 that charges a storage battery of an EV (Electric Vehicle) 230 connected via the EV charging outlet 220 using power supplied from an AC power source 210, and a charging management system 250 that is connected to the power switching module 100 via a network NT1.

[0022] The power switching module 100 includes a relay 101 that opens and closes the electrical circuit PL1, a power measuring unit 102 that measures the power supplied to the EV 230 through the electrical circuit PL1, a communication unit 103 that transmits and receives information between the power switching module 100 and an external device using a predetermined communication method, and a control unit 104 that provides overall control of the relay 101, the power measuring unit 102, and the communication unit 103.

[0023] The power switching module 100 is housed as a module in a housing of a pole or a box that is a charging facility 260 in which an EV charging outlet 220 is provided.

[0024] Near the upper end in the longitudinal direction of the surface portion 121 of the front case 120, a substantially square opening 124 is formed, from which an output connector 172 (described later) is exposed toward the surface side. The opening 124 is provided at a position retracted from the surface portion 121 toward the inside of the housing 110, i.e., toward the rear portion 131, and is inclined so as to face downward. A substantially rectangular plate-like guide portion 126a is provided from a lower edge 125a of a substantially square outer opening 125 opened near the upper end in the longitudinal direction of the surface portion 121 of the front case 120 to a lower edge 124a of the opening 124. The guide portion 126a is inclined so as to face upward. The edge of the guide portion 126a on the opening 124 side is bent in the Y direction. An approximately triangular plate-shaped side wall 126b is provided from the left edge 125b of the outer opening 125 to the left edge 124b of the opening 124, and similarly, an approximately triangular side wall is provided from the right (X direction) edge 125c of the outer opening 125 to the right edge of the opening 124.

[0025] A connection surface 172a of the output connector 172 exposed from the opening 124 of the front case 120 is inclined downward (in the - (negative) Y direction) from the front side (Z direction) to correspond to the opening 124. The connection surface 172a of the output connector 172 is provided with three sockets 172b to 172d for connecting an output cable that connects the power switching module 100 and the EV charging outlet 220.

[0026] The power switching module 100 has a side wall 12 of a front case 120 on the lower side (−Y direction). An opening 112 is provided across the front case 120 and the side wall 132 of the rear case 130, exposing an input connector 171 for connecting an input cable that connects the AC power source 210 and the power switching module 100. The input connector 171 is provided with sockets 171a to 171c that are opened facing downward (-Y direction) and to which the input cables are respectively connected. Water droplets that have adhered to the lower (-Y direction) side wall 122 of the front case 120 and the lower (-Y direction) side wall 132 of the rear case 130 and the input cables due to condensation fall downward, and therefore can be prevented from entering the interior of the power switching module 100.

[0027] FIG. 4 shows a schematic cross-sectional view of power switching module 100. For convenience of explanation, some components are omitted in FIG. 4. The cross-section shown in FIG. 4 is a cross-section parallel to the YZ plane of the portion indicated by dashed line CS1 in FIG. 2, viewed from the direction of arrow D1. FIG. 4 shows a normal use posture housed in charging equipment 260, with the Y direction being upward. At this time, EV charging outlet 220 is placed on the front side of the post or box which is charging equipment 260, in the Z direction of power switching module 100 shown in FIG. 4.

[0028] As described above, the opening 124 of the housing 110 and the connection surface 172a of the output connector 172 are disposed at an angle so as to face downward. FIG. 5 is a schematic diagram of only the output connector 172 among the cross-sectional views shown in FIG. 4. FIG. 5 shows the relationship between the socket 172c of the output connector 172 and the output cable 400 connected to this socket 172c (the same applies to the other sockets 172b and 172d). The power switching module 100 is installed in the housing of the charging equipment 260 in the posture shown in FIG. 4. One end of the output cable 400 connected to the socket 172c of the output connector 172 is connected to the EV charging outlet 220 at the other end. Since the connection surface 172a of the output connector 172 is inclined so as to face downward, the socket 172c is also opened so as to face upward from the connection surface 172a toward the inside of the power switching module 100. Therefore, the output cable 400 connected to the output connector 172 is drawn downward at least once from the output connector 172 side toward the front side. Regardless of the relative positions of the power switching module 100 (output connector 172) and the EV charging outlet 220, even if condensation occurs on the surface of the output cable 400, the water droplets move downward on the output cable 400 as indicated by arrow DR1, thereby preventing the water from entering the power switching module 100.

[0029] Fig. 6 is a diagram showing the periphery of the output connector 172 in the cross-sectional view shown in Fig. 4. As described with reference to Fig. 4, the power switching module 100 is arranged along the up-down direction (Y-axis direction). Water droplets adhering to the surface portion 121 of the front case 120 fall downward along the surface portion 121 as shown by the arrow DR2, pass over the opening 124 side or the outer opening 125, and fall downward along the surface portion 121 or the opening cover 140 as shown by the arrow DR5. Water droplets that have moved to the opening 124 side fall downward along the connection surface 172a of the output connector 172 exposed from the opening 124 as shown by the arrow DR3, or fall on the output cable 400 as shown by the arrow DR1 as shown in FIG. 5. Water droplets that have fallen downward along the exposed connection surface 172a pass over the opening 124 and fall downward along the guide portion 126a. Water droplets that have reached the lower end of the guide portion 126a fall from the lower edge 125a of the outer opening 125 along the surface portion 121 or the opening cover 140.

[0030] Water droplets that have formed on the surface of the front case 120 due to condensation fall downward as described above, and therefore can be prevented from entering the inside of the power switching module 100.

[0031] Example 1 Hereinafter, a charging system 20 including a power switching module 100 according to a first embodiment of the present invention will be described. 0 will be described in more detail with reference to the drawings. However, the configurations of the devices and systems described in the embodiments may be modified as appropriate depending on various conditions. In other words, the scope of the present invention is not limited to the following embodiments.

[0032] Charging system 200 includes EV charging outlet 220, a power switching module 100 that opens and closes an electric circuit PL1 that charges a storage battery of an EV (Electric Vehicle) 230 connected via EV charging outlet 220 with power supplied from AC power source 210, and a charging management system 250 that is connected to power switching module 100 via a network NT1. Here, AC power source 210 and EV 230 correspond to the power source and load of the present invention, respectively. Also, electric circuit PL1 corresponds to the electric circuit and line of the present invention. And, power switching module 100 corresponds to the power switch and electric equipment of the present invention, and charging management system 250 corresponds to the external device of the present invention.

[0033] The power switching module 100 mainly includes a relay 101, a power measurement unit 102, a communication unit 103, and a control unit 104. The relay 101 opens and closes an electric circuit PL1 that connects an AC power source 210 and an EV charging outlet 220. The power measurement unit 120 detects an E The relay 101 measures the power supplied to V230. The communication unit 103 is an interface for transmitting and receiving information between the power switching module 100 and an external device using a predetermined communication method. The control unit 104 comprehensively controls the relay 101, the power measuring unit 102, and the communication unit 103. Here, the relay 101, the communication unit 103, and the control unit 104 correspond to the relay, the communication unit, and the control unit of the present invention, respectively.

[0034] The control unit 104 includes a processor such as an MPU and a memory.

[0035] An example of the operation of the charging system 200 described above will be described below. The charging management system 250 is, for example, a computer device such as a plurality of servers arranged on a cloud.

[0036] The charging management system 250 monitors and controls the power switching modules 100 connected via the network NT1.

[0037] Power switching module 100 is housed as a module in a housing of a pole or a box that is charging equipment 260 provided with EV charging outlet 220, for example. Relay 101 and power measurement unit 102 are arranged on an electric circuit PL1 that connects AC power source 210 and EV charging outlet 220 and supplies AC power supplied from AC power source 210 to EV 230 via EV charging outlet 220. Relay 101 opens and closes electric circuit PL1 in response to an instruction from control unit 104, and charges the storage battery of EV 230. Power measurement unit 102 measures the power or the amount of power supplied from AC power source 210 to EV 230 via EV charging outlet 220. Charging management system 250 monitors and controls the operation of power switching module 100 based on necessary information transmitted from communication unit 103.

[0038] Fig. 2 is a perspective view showing the external appearance of the power switching module 100, and Fig. 3 is an exploded perspective view of the power switching module 100. Note that, for convenience of explanation, some members are omitted in Fig. 3.

[0039] In use, the power switching module 100 is placed in a pole or box housing that is the charging equipment 260 so that the Z direction in Fig. 2 is the front side (-Z direction is the rear side), the Y direction is the upper side (-Y direction is the lower side), and the X direction is the right side when facing the front (-X direction is the left side when facing the front). In this case, the front side is the side of the charging equipment 260 where the EV charging outlet 220 is placed. In the following description, the front (front), rear, top, bottom, left and right refer to the directions when in use. The state when viewed from the front side is used as the reference.

[0040] The power switching module 100 is generally composed of a housing 110 consisting of a front case 120 and a rear case 130, an opening cover 140, an IoT board 150, a heat conductive sheet 160, and a power board 170. The housing 110, which is hollow and has a substantially rectangular parallelepiped shape, is divided into a front case 120 on the front side and a rear case 130 on the rear side along a dividing plane 111 parallel to the surface portion 121 and the rear portion 131. The front case 120 and the rear case 130 are joined by an appropriate joining means. The front case 120 has a substantially rectangular shape with a bottom and a side wall portion 122 that rises from the periphery of the substantially rectangular surface portion 121 parallel to the XY plane in a direction perpendicular to the surface portion 121 (-Z direction). Similarly, the rear case 130 has a substantially rectangular shape with a bottom and a side wall 132 rising from the periphery of the rear part 131, which is substantially rectangular parallel to the XY plane, in a direction (Z direction) perpendicular to the rear part 131. The housing 110 of the power switching module 100 can be configured with a simple configuration by dividing the housing 110 into the front case 120 and the rear case 130. Here, the housing 110 corresponds to the housing of the present invention. The surface part 121 constitutes the surface of the present invention. The surface of the present invention may include the side wall part 122 of the housing 110. In this case, the front case 120 and the rear case 130 can be referred to as the second housing part and the first housing part of the housing 110, respectively. The opening cover 140 and the heat conductive sheet 160 can be referred to as the lid part and the heat conductive member, respectively. The IoT board 150 and the power board 170 can be referred to as the second board and the first board, respectively.

[0041] Further, near the lower end in the longitudinal direction (Y-axis direction) of the surface portion 121 of the front side case 120, a recess 123 having a substantially rectangular parallelepiped shape that is recessed from the front side to the back side is formed. The recess 123 has a bottom portion 123a parallel to the surface portion 121, and a side wall portion 123b that rises from the periphery of the bottom portion 123a perpendicularly to the bottom portion 123a and connects to the surface portion 121, and an opening portion 123c that opens outward (to the front side) is formed. The opening portion 123c of the recess 123 provided in the front side case 120 is covered by an opening portion cover 140 that is a substantially rectangular plate-like member so as to be able to be opened and closed.

[0042] Near the upper end in the longitudinal direction of the surface portion 121 of the front case 120, an approximately square opening 124 is formed, from which an output connector 172 (described later) is exposed toward the surface side. The opening 124 is provided at a position retracted from the surface portion 121 parallel to the XY plane toward the inside of the housing 110, i.e., toward the rear portion 131 side (-Z direction), and inclined downward (-Y direction). A guide portion 126a having an approximately rectangular plate shape is provided from a lower (-Y direction) edge 125a of an approximately square outer opening 125 opened near the upper end in the longitudinal direction of the surface portion 121 of the front case 120 to a lower (-Y direction) edge 124a of the opening 124. The guide portion 126a is inclined from the upper side (Y direction) to the front side (Z direction). The edge of the guide portion 126a on the opening 124 side is bent in the Y direction. A substantially triangular plate-shaped side wall 126b is provided from the left (-X direction) edge 125b of the outer opening 125 to the left (-X direction) edge 124b of the opening 124, and a substantially triangular side wall is similarly provided from the right (X direction) edge 125c of the outer opening 125 to the right edge of the opening 124. Here, the output connector 172 corresponds to the output connector of the present invention. Moreover, the outer opening 125 corresponds to the first opening of the present invention, and the opening 124 corresponds to the second opening of the present invention. The lower edge 125a of the outer opening 125 corresponds to the lower edge of the first opening of the present invention, and the lower edge 124a of the opening 124 corresponds to the lower edge of the second opening of the present invention. Moreover, the guide portion 126a corresponds to the inclined surface portion and the guide portion of the present invention.

[0043] The connection surface 172a of the output connector 172 exposed from the opening 124 of the front case 120 is inclined downward (in the -Y direction) from the front side (Z direction) in correspondence with the opening 124. The connection surface 172a of the output connector 172 has three connectors for connecting an output cable 400 (see FIG. 5) that connects the power switching module 100 and the EV charging outlet 220. Inlets 172b to 172d are provided. Here, connection surface 172a corresponds to the connection surface of the present invention. Also, outlets 172b to 172d correspond to the outlets of the present invention. Output cable 400 corresponds to the output cable and output line of the present invention.

[0044] An opening 112 is provided on the lower side (-Y direction) of the power switching module 100, which exposes an input connector 171 for connecting an input cable that connects the AC power source 210 and the power switching module 100, across the side wall 122 of the front case 120 and the side wall 132 of the rear case 130. The input connector 171 is provided with sockets 171a to 171c that are opened facing downward (-Y direction) and to which the input cables are respectively connected. Water droplets that adhere to the side wall 122 on the lower side (-Y direction) of the front case 120 and the side wall 132 on the lower side (-Y direction) of the rear case 130 and the input cable due to condensation fall downward, so that it is possible to prevent the water from entering the inside of the power switching module 100. Here, the input connector 171 corresponds to the input connector of the present invention, and the sockets 171a to 171c correspond to the second sockets of the present invention.

[0045] Fig. 4 shows a schematic cross-sectional view of power switching module 100, and for convenience of explanation, some components are omitted. The cross-section shown in Fig. 4 is a cross-section parallel to the YZ plane of the portion indicated by dashed line CS1 in Fig. 2, viewed from the direction of arrow D1. Fig. 4 shows a normal use posture housed in charging equipment 260, with the Y direction being upward. At this time, EV charging outlet 220 is placed on the front side of the post or box which is charging equipment 260, in the Z direction of power switching module 100 shown in Fig. 4.

[0046] As described above, the opening 124 of the housing 110 and the connection surface 172a of the output connector 172 are inclined so as to face downward (in the -Y direction). FIG. 5 is a schematic diagram of only the output connector 172 among the cross-sectional views shown in FIG. 4. FIG. 5 shows the relationship between the socket 172c of the output connector 172 and the output cable 400 connected to this socket 172c (the same applies to the other sockets 172b and 172d). The power switching module 100 is installed in the housing of the charging equipment 260 in the posture shown in FIG. 4. It is preferable that the housing of the charging equipment 260 has a waterproof structure. In general, the EV charging outlet 220 is arranged facing downward on the front side of the charging equipment 260, and is configured so that the charging plug is inserted from below to above. One end of the output cable 400 connected to the socket 172c of the output connector 172 is connected to the EV charging outlet 220 at the other end. Since the connection surface 172a of the output connector 172 is inclined so as to face downward, the socket 172c is also opened so as to face upward from the connection surface 172a into the power switching module 100. Therefore, output cable 400 connected to output connector 172 is drawn out from the output connector 172 side toward the front side (Z direction) so as to at least once descend downward (-Y direction). The relative positional relationship in the up-down direction (Y-axis direction) between power switching module 100 (output connector 172) and EV charging outlet 220 may vary depending on the configuration of charging equipment 260. However, because of the above-mentioned relationship between output connector 172 and output cable 400, even if condensation occurs on the surface of output cable 400, the water droplets move downward (-Y direction) on output cable 400 as indicated by arrow DR1, and therefore it is possible to prevent the water droplets from entering power switching module 100.

[0047] Fig. 6 is a diagram showing the periphery of the output connector 172 in the cross-sectional view shown in Fig. 4. As described with reference to Fig. 4, the power switching module 100 is arranged along the up-down direction (Y-axis direction). 6, the connection surface 172a is exposed from an opening 124 that is opened at a position retreated toward the inside of the housing 110 from an outer opening 125 opened in the surface portion 121 of the front case 120. A guide portion 126a is provided that is continuous with a lower end portion 172e of the connection surface 172a and extends from a lower edge 124a of the opening 124 to a lower edge 125a of the outer opening 125. is.

[0048] Water droplets adhering to the surface portion 121 of the front case 120 fall downward along the surface portion 121 as shown by the arrow DR2, pass over the opening 124 side or the outer opening 125, and fall downward along the surface portion 121 or the opening cover 140 as shown by the arrow DR5. Water droplets that have moved to the opening 124 side fall downward along the connection surface 172a of the output connector 172 exposed from the opening 124 as shown by the arrow DR3, or fall on the output cable 400 as shown by the arrow DR1 as shown in FIG. 5. Water droplets that have fallen downward along the exposed connection surface 172a pass over the opening 124 and fall downward along the guide portion 126a. Water droplets that have reached the lower end of the guide portion 126a fall from the lower edge 125a of the outer opening 125 along the surface portion 121 or the opening cover 140.

[0049] Water droplets adhering to the connection surface 172a of the output connector 172 also fall along the connection surface 172a, the guide portion 126a, and the surface portion 121 or the opening cover 140, as shown by the arrows DR3, DR4, and DR5. Water droplets adhering to the guide portion 126a also fall along the guide portion 126a and the surface portion 121 or the opening cover 140, as shown by the arrows DR4 and DR5. Water droplets adhering to the surface portion 121 or the opening cover 140 below the outer opening 125 also fall along the surface portion 121 or the opening cover 140, as shown by the arrow DR5.

[0050] Water droplets that have formed on the surface of the front case 120 due to condensation fall downward as described above, and therefore can be prevented from entering the inside of the power switching module 100.

[0051] As described above, in the power switching module 100, the circuit board is divided into the IoT board 150 and the power board 170. The IoT board 150 is mounted with electronic components that function as the communication unit 103 and the control unit 104. The power board 170 is mounted with the relay 101 and the power measurement unit 102, and constitutes a part of the electric circuit PL1. In addition, the power board 170 is connected with the bus bars 173 and 174 as a part of the electric circuit PL1, and has a capacity for the electric power supplied from the AC power source 210 to the EV 230 via the power switching module 100. The thermally conductive sheet 160 is a sheet made of a thermally conductive material such as silicon, and is disposed between the IoT board 150 and the opening cover 140.

[0052] Fig. 7 shows a schematic cross-sectional view of the power switching module 100. For convenience of explanation, some components are omitted in Fig. 7. The cross section shown in Fig. 7 is a cross section parallel to the XZ plane of the portion indicated by the dashed line CS2 in Fig. 2, as viewed from the direction of the arrow D2. The IoT board 150 is disposed in a recess 123 provided on the surface portion 121 side of the front case 120, and is connected to a power board 170 disposed in the rear case 130. The IoT board 150 is held at a position separated from the bottom portion 123a by cylindrical holders 123d disposed at the four corners of the bottom portion 123a of the recess 123. The thermally conductive sheet 160 arranged between the IoT board 150 and the opening cover 140 is slightly crushed between the opening cover 140 and the IoT board 150 when the opening cover 140 is closed, and adheres closely to the IoT board 150 and the opening cover 140, and has the function of transferring heat generated in the IoT board 150 to the opening cover 140 and dissipating the heat from the opening cover 140.

[0053] The power board 170 is held at a distance from the rear part 131 by a holding part 133 arranged on the rear part 131 of the rear case 130. The bus bars 173 and 174 each extend from the power board 170 toward the front side, i.e., the front case 120 side, and are arranged along the longitudinal direction (Y-axis direction) of the rear case 130. The power board 170 including the above is disposed in an internal space 113 defined by the front case 120 and the rear case 130 as shown in FIG. 4. Heat generated from the power board 170 is released to the periphery of the power switching module 100 through the bottom 123a and side wall 123b of the recess 123, the side wall 122 of the front case 120, and the rear case 130, which surround the internal space 113. Here, the internal space 113 can be said to be the hollow interior of the housing 110, and the bottom 123a and side wall 123b of the recess 123, the side wall 122 of the front case 120, and the rear case 130 are called the first chamber of the housing 110, and the recess 123 can be called the second chamber of the housing 110. In this case, the bottom 123a and side wall 123b of the recess 123 can be said to be a partition wall separating the first chamber from the second chamber.

[0054] As described above, the heat generated from the IoT board 150 is released to the surface portion 121 side of the power switching module 100 through the thermally conductive sheet 160 and the opening cover 140. Since the IoT board 150 is disposed in the recess 123 of the front side case 120, the bottom portion 123a of the recess 123 separates the IoT board 150 from the internal space 113 in which the power board 170 is disposed, and the holding portion 123d holds the IoT board 150 away from the bottom portion 123a. Therefore, the influence of heat generated by the power board 170 on the MPU and the like mounted on the IoT board 150 is reduced, and the temperature rise of the MPU and the like is suppressed. Therefore, the communication unit 103 and the control unit 104 can be operated within an appropriate temperature range, and the reliability of the operation of the power switching module 100 can be ensured. Moreover, by configuring the power switching module 100 in this way, the volume can be suppressed to make the entire device compact, and the power switching module 100 can be installed in a post or a box charging facility with a limited internal space volume.

[0055] [Modifications] Electrical devices to which the above-mentioned configuration of the output connector capable of preventing the intrusion of water droplets can be applied are not limited to the power switching module 100 constituting the charging system 200 for charging the storage battery of the EV 230 described as the first embodiment. For example, the present invention can be applied to a control device used to control a power conditioner or a social infrastructure, but is not limited to these. In an electric device to which the configuration of the output connector can be applied, the line opened and closed by the relay is not limited to a power line such as the above-mentioned electric circuit PL1, and may be a signal line, and it is sufficient as long as it is a line through which a current flows to output power or a signal via an output line connected to the output connector. In such an electric device, the output connector is in the same manner as the output connector 172 according to the first embodiment, in that the connection surface of the output connector exposed from the opening on the front side of the housing is inclined downward (in the -Y direction) from the front side (Z direction) in correspondence with the opening, and a guide portion is provided that is continuous with the lower end of the connection surface and extends from the lower edge of the opening to the lower edge of the opening of the housing, thereby preventing water droplets attached to the output line or the housing from entering the inside.

[0056] In the following, the components of the present invention will be described with reference to the reference numerals in the drawings in order to make it possible to compare the components of the present invention with the configurations of the embodiments. <Appendix 1> A communication unit (103) communicably connected to an external device (250); A relay (101) that opens and closes an electric circuit (PL1) that supplies power from a power source (210) to a load (230); a control unit (104) that controls the relay (101) based on information received from the external device (250) via the communication unit (103); an output connector (172) to which an output cable (400) is connected, the output cable outputting the power input from the power source (210) toward the load (230); A power switch (100) having The power switch (100) is characterized in that a connection surface (172a) of the output connector (172), where the sockets (172b-172d) to which the output cable (400) are connected, is inclined so as to face downward when in use. <Appendix 2> a housing (110) that houses the communication unit (103), the relay (101), the control unit (104) and the output connector (172); The housing (110) is The power switch (100) according to claim 1, characterized in that in the usage state, it has a slope portion (126a) that is continuous with a lower end portion (172e) of the connection surface (172a) exposed from the housing (110) and is inclined upward. <Appendix 3> In the above-mentioned usage state, A first opening (125) provided on a surface of the housing (100) extending in the vertical direction; a second opening (124) that is inclined downward and is disposed at a position retracted inside the housing (110), and through which the connection surface (172a) is exposed; Equipped with The power switch (100) according to claim 2, characterized in that the inclined portion (126a) is formed to continue from the lower edge portion (124a) of the second opening (124) to the lower edge portion (125a) of the first opening (125). <Appendix 4> 4. The power switch (100) according to claim 2 or 3, characterized in that the connection surface (172a) and / or the inclined surface portion (126a) constitute a guide portion (172a, 126a) that guides falling water droplets. <Appendix 5> an input connector (171) to which an input cable for inputting the power from the power source (210) is connected; 5. The power switch (100) according to claim 1, wherein a second socket (171a-171c) to which the input cable is connected is provided so as to open downward in the use state. <Appendix 6> A communication unit (103) communicably connected to an external device (250); an output connector (172) to which an output line (400) is connected; a relay (101) for opening and closing a line (PL1) connected to the output connector (172); a control unit (104) that controls the relay (101) based on information received from the external device (250) via the communication unit (103); An electrical device (100) having The electric device (100) is characterized in that a connection surface (172a) of the output connector (172), where the sockets (172b-172d) to which the output lines (400) are connected, is inclined so as to face downward when in use. [Explanation of symbols]

[0057] 100: Power switching module 101: Relay 103: Communications Department 104: Control unit 113:Hollow interior 172: Output connector 172a: Connection surface 172b~172d: Outlets 210 :AC power supply 230: Electric vehicles PL1: Electrical line

Claims

1. A communication unit that is communicably connected to an external device; A relay that opens and closes the circuit that supplies power from the power source to the load; a control unit that controls the relay based on information received from the external device via the communication unit; an output connector to which an output cable is connected that outputs the power input from the power source toward the load; A power switch having A power switch, characterized in that a connection surface of the output connector, which opens into a socket to which the output cable is connected, is inclined so as to face downward when in use.

2. a housing that houses the communication unit, the relay, the control unit, and the output connector; The housing includes:

2. The power switch according to claim 1, further comprising a sloped surface that is continuous with a lower end of the connection surface exposed from the housing in the use state and is inclined upward.

3. In the above-mentioned usage state, A first opening is provided on a surface of the housing extending in a vertical direction; a second opening provided at a position retracted inside the housing and inclined downward, the second opening exposing the connection surface; Equipped with 3. The power switch according to claim 2, wherein the slope portion is formed so as to continue from a lower edge of the second opening portion to a lower edge of the first opening portion.

4. 4. The power switch according to claim 2, wherein the connection surface and / or the inclined surface constitutes a guide portion for guiding falling water droplets.

5. an input connector to which an input cable for inputting the power from the power supply is connected; 4. The power switch according to claim 1, wherein the second socket to which the input cable is connected is provided so as to open downward in the use state.

6. A communication unit communicably connected to an external device; an output connector to which an output line is connected; a relay for opening and closing a line connected to the output connector; a control unit that controls the relay based on information received from the external device via the communication unit; An electrical device having The electrical device according to claim 1, wherein a connection surface of the output connector, which opens into a socket to which the output line is connected, is inclined so as to face downward when in use.

Images