JP2016157743A - Electronic equipment for outdoor installation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide electronic equipment for outdoor installation that can more greatly enhance the waterproof performance.SOLUTION: Electronic equipment for outdoor installation has a housing 2, a front panel 3 and a cover part 4. The housing 2 is configured to have an opened front surface and a box-like outer shape. The front panel 3 is configured to block the front surface of the housing 2. The cover part 4 covers a through-hole provided along a fixing face 2aa of the housing 2 which is secured to the wall surface. A cylindrical part 4b of the cover part 4 has a first opening portion 4b1 opened to the outside of the housing 2 and a second opening portion 4b2 opened to the inside of the housing 2 so that a wire which is electrically connected to electronic equipment is insertable therethrough. The second opening portion 4b2 is provided at an upper side in the vertical direction of the lower end of the first opening portion 4b1 in the vertical direction.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an electric device for outdoor installation, and particularly to an electric device attached to an outdoor wall surface.

  Conventionally, there is a case where an electric device is used by being attached to a wall surface.

  As this type of electrical equipment, for example, a power conversion device that converts DC power from a solar cell into predetermined AC power is known (for example, see Patent Document 1).

  The power conversion device of Patent Document 1 includes a substrate that constitutes an inverter circuit and a housing that accommodates the substrate. In the power converter of Patent Document 1, the inverter circuit constitutes a part of an electric circuit that converts the DC power of the solar cell into AC power. In the power conversion device, a rear panel of a housing is attached to a wall surface, and a notch is formed in the rear panel. The power converter is configured so that DC input wiring to which DC power is input and AC output wiring from which AC power is output can be introduced into the housing through a notch in the rear panel.

JP 2014-90604 A

  By the way, an electric device may be attached not only to a wall surface inside a building but also to a wall surface on the outdoor side. When the electric device is attached to the wall surface on the outdoor side, if rainwater enters, the reliability of the electric device may be reduced. The electrical device is required to have a more waterproof structure, and when it is attached to the wall surface on the outdoor side, the above-described configuration of Patent Document 1 is not sufficient, and further improvement is required.

  An object of the present invention is to provide an electric device for outdoor installation that is more waterproof.

  The electric device for outdoor installation according to the present invention includes a box-shaped housing whose front surface is opened, a front panel that is attached so as to close the front surface of the housing, and a housing that is attached to a wall surface on the outdoor side of a house. A cover portion that covers the through-hole provided on the attachment surface side to the wall surface, and integrally forms the cover portion, and the cover portion includes an attachment portion that is attached to the housing, and an electric power that is accommodated in the housing. A cylindrical portion through which a wiring that is electrically connected to the circuit is inserted. The cylindrical portion has a first opening that opens toward the outside of the housing, and a housing that is opposite to the first opening. And the second opening is provided above the lower end in the vertical direction of the first opening in the vertical direction. .

  The outdoor-installed electrical device of the present invention can be configured to be more waterproof.

FIG. 1 is a rear perspective view showing an outdoor installation electrical apparatus according to an embodiment. FIG. 2 is a front perspective view illustrating the outdoor-installed electrical device according to the embodiment. FIG. 3 is a front view for explaining a main part in the outdoor-installed electrical apparatus according to the embodiment. FIG. 4 is a perspective view illustrating another main part of the outdoor-installed electric device according to the embodiment. Drawing 5 is an explanatory view explaining the attachment process of an embodiment. Drawing 6 is an explanatory view explaining the attachment process of an embodiment. FIG. 7 is a conceptual diagram of a power conversion system using the outdoor-installed electrical device according to the embodiment.

  Hereinafter, an outdoor installation electrical device (hereinafter simply referred to as an electrical device) 11 according to the present embodiment will be described with reference to FIGS. 1 to 6. A power conversion system 50 when the electrical device 11 is a power conversion device will be described with reference to FIG. The electric device 11 is not limited to the power conversion device, and may be any device that can be connected to the electric wiring and accommodates an electrical component or an electric circuit, such as one that couples or branches the electric power wiring or one that houses a protective relay. Anything that can be installed outdoors is acceptable. In the drawings, the same members are denoted by the same reference numerals and redundant description is omitted. The size and positional relationship of the members shown in each drawing may be exaggerated for clarity of explanation.

  As shown in FIGS. 1 to 3, the electrical device 11 according to the present embodiment includes a housing 2, a front panel 3, and a cover portion 4 that is integrally formed of synthetic resin or the like. The housing 2 has a box-like outer shape with an open front surface, and is integrally formed with a metal such as aluminum or aluminum alloy, or a synthetic resin, for example. The front panel 3 is attached so as to be openable and closable with a screw or the like so as to block the front surface of the housing 2. The housing 2 is configured so that, for example, the electric circuit 1 that forms a power conversion circuit or the like can be accommodated therein. The electric circuit 1 is not limited to the power conversion circuit, but includes a protection relay, a fuse, a component such as a terminal block, a backflow prevention circuit using a diode, a circuit that combines multiple powers into a single output, and a single input power. A circuit branching to a plurality of outputs, a charge / discharge circuit of a storage battery, and the like are possible. The electric device 11 is not limited to the power conversion device of this embodiment. The housing | casing 2 is comprised so that it may attach to the wall surface 50aa of the outdoor side. As shown in FIG. 4, the housing 2 is provided with a through-hole 2ab. The through-hole 2ab is provided on the lower side of the mounting surface (the back surface of the housing 2) 2aa of the housing 2 attached to the wall surface 50aa. The cover part 4 is comprised so that the through-hole 2ab may be covered. The cover part 4 includes an attachment part 4a and a cylindrical part 4b. The attachment portion 4 a is configured to be attached to the housing 2. As shown in FIGS. 6A and 6B, the cylindrical portion 4b is configured to allow the wiring 12 to be inserted therethrough. The wiring 12 is electrically connected to the electric circuit 1. Moreover, the cylindrical part 4b has the 1st opening part 4b1 and the 2nd opening part 4b2. The first opening 4 b 1 opens toward the outside of the housing 2. The second opening 4b2 is provided on the side opposite to the first opening 4b1. The second opening 4 b 2 opens toward the inside of the housing 2. The second opening 4b2 is provided above the vertical end of the first opening 4b1 in the vertical direction.

  The electrical device 11 of the present embodiment includes the cover portion 4 provided with the second opening portion 4b2 above the vertical direction from the lower end in the vertical direction of the first opening portion 4b1, so that the waterproof property can be further increased. It becomes possible.

  Below, the case where a power converter device is used for the electric equipment 11 is demonstrated. The electric device 11 uses a power converter 11 a as the electric circuit 1. The power converter 11a is configured to convert DC power into AC power. Initially, the power conversion system 50 provided with the electric equipment (power converter device) 11 is demonstrated easily using FIG.

  The power conversion system 50 includes a solar cell 51 and an electric device (power conversion device) 11. The power conversion system 50 further includes a remote controller 52 and a distribution board 53. The electric device (power conversion device) 11 is installed on a wall or a frame on the outdoor side of the building, and is electrically connected to the plurality of solar cells 51 to convert the DC power from the solar cells 51 into AC power. . In addition, the electric device (power conversion device) 11 outputs AC power obtained by converting the power to the distribution board 53 and drives a load device 56 such as a lighting fixture or a television, for example. It is possible to reverse the current. In addition, you may comprise so that the alternating current power which carried out power conversion may make the whole quantity reverse flow to the commercial alternating current power supply 55. FIG.

  Below, the structure of the electric equipment (power converter device) 11 is demonstrated more concretely.

  The power converter 11a includes a switch 11b, a connector part 11c, a terminal block 11d, and a setting part 11e, as shown in FIG. 3, in addition to a DC-AC converter that converts DC power into AC power. Yes. The DC-AC converter is provided with an insulating sheet 6 so that the internal electronic components are not exposed to the outside. The five switches 11 b are arranged on the left side in the vertical direction of the power converter 11 a when viewed from the front, and are electrically connected to a maximum of five solar cells 51 and wirings 12. Hereinafter, the wiring 12 that is electrically connected to the solar cell 51 is also referred to as a first wiring 12a. The switch 11b is configured to be able to control the opening and closing of the electric circuit that feeds the DC power input from the solar battery 51 to the DC-AC converter.

  The terminal block 11d is disposed on the right side of the power converter 11a in the vertical direction when viewed from the front, and is electrically connected to the distribution board 53 by the wiring 12. Hereinafter, the wiring 12 electrically connected to the distribution board 53 is also referred to as a second wiring 12b. The DC-AC converter can output AC power, which has been subjected to power conversion, to the distribution board 53 via the terminal block 11d and the second wiring 12b. The terminal block 11d may be configured to be electrically connected to the wiring 12 to be grounded. The power converter 11a includes a communication unit. The communication unit is connected to the remote controller 52 via the connector unit 11c, and is configured so that, for example, the drive condition of the electric device 11 can be set and the amount of power generated by the solar cell 51 can be confirmed. The connector portion 11c and the remote controller 52 are electrically connected by a wiring 12 (hereinafter also referred to as a third wiring 12d).

  The electric device (power conversion device) 11 is provided with a switch 11b, a connector portion 11c, and a terminal block 11d in the lower part in the vertical direction inside the housing 2. The electric device (power conversion device) 11 has a cover portion 4 provided in the vertical direction inside the housing 2. For example, the electrical device (power converter) 11 may have a height of the housing 2 of 65 cm or more. When the ground height from the ground surface to which the housing 2 is attached is high, the electrical device (power conversion device) 11 requires a work to look down from above if a switch 11b or the like is provided above the vertical direction. The operator who performs the twelve connection operations is a higher place operation. The electrical device (power conversion device) 11 is provided with a switch 11b, a connector portion 11c, and a terminal block 11d below the vertical direction corresponding to the cover portion 4 inside the housing 2. The electrical device (power conversion device) 11 is provided with a switch 11b, a connector portion 11c, or a terminal block 11d below the vertical direction corresponding to the cover portion 4, so that the connection work of the wiring 12 is looked up from below. Therefore, the reliability of the work and the safety of the worker are increased.

  As shown in FIG. 3, the housing 2 has a back plate 21a, a first side plate 21b, a second side plate 21c, an upper plate 21d, and a bottom plate 21e. The back plate 21a includes an upper plate 21d and a bottom plate 21e along the rectangular short-side direction.

  As shown in FIG. 4, the housing 2 is provided with a through-hole 2ab across the back plate 21a and the bottom plate 21e. The housing 2 includes a fixing portion 21 h that fixes the cover portion 4. The housing 2 is provided with a plurality of fixing portions 21h on the back plate 21a. The fixing portion 21h protrudes toward the through hole 2ab. The fixing portion 21h has a flat outer shape. The fixing portion 21h has a fixing hole 21ha penetrating in the thickness direction. The housing 2 is configured such that the cover portion 4 can be screwed from the inside of the housing 2 using a screw inserted through the fixing hole 21ha.

  The direction of the white arrow shown in FIG. 4 illustrates the direction in which the cover portion 4 is aligned with the housing 2. In the cover portion 4, the cover portion 4 is aligned with the housing 2, whereby the wiring 12 is led out from the second opening portion 4 b 2 so as to face upward in the vertical direction. The electrical device (power conversion device) 11 is screwed from the inside of the housing 2 to the fixing portion 21h of the housing 2 and the boss 4c6 of the cover portion 4 with the cover portion 4 fitted to the housing 2. Is called. Furthermore, the electric device (power conversion device) 11 is configured so that the bottom 4a1 of the cover 4 and the bottom plate 21e of the housing 2 are screwed from the outside of the housing 2 in a state where the cover 4 is fitted to the housing 2. Done.

  As shown in FIG. 3, the housing 2 includes a recess 21 aa in the upper part of the cover portion 4 in the vertical direction. The recess 21aa is formed in a triangular shape when viewed from the front. The housing 2 is provided with a connector portion 11c and a terminal block 11d so as to face the second opening 4b2 of the cover portion 4. The recess 21aa can facilitate the routing of the wiring 12 inserted into the housing 2.

  In order to radiate heat from the power converter 11a, the back plate 21a is provided with a plurality of radiating fins 21f. The material of the housing 2 is not limited to aluminum, and it is preferable to use a metal having excellent thermal conductivity such as an aluminum alloy. The material of the housing 2 is not limited to metal, and resin can also be used.

  The front panel 3 can be formed using a metal having excellent thermal conductivity. The front panel 3 can be made of, for example, baked iron or stainless steel as a metal material. The material of the front panel 3 is not limited to metal, and resin may be used. The front panel 3 is fixed to the housing 2 via an annular packing. The packing can suppress water from entering between the front panel 3 and the housing 2.

  As shown in FIG. 4, the cover part 4 has an attachment part 4 a and a cylindrical part 4 b. In the cover part 4, the attachment part 4a and the cylindrical part 4b are integrally configured. The cover portion 4 can be formed by integral molding using, for example, a polymer alloy resin material in which a PC (Ploy Carbonate) resin and an ABS (Acrylonitrile Butadiene Styrene) resin are mixed. The cover part 4 can be made into a relatively free outer shape including a rounded curved surface shape by using integral molding of a resin material. The cover portion 4 is formed by integral molding of a resin material, so that the waterproofness can be improved with fewer joints as compared to the case where the cover portion 4 is formed of a plurality of parts. The attachment portion 4a includes a bottom portion 4a1, a pedestal portion 4a5, and a wall portion 4c2. The bottom 4a1 is formed in a plate shape. The bottom 4a1 has a C-shaped outer shape in plan view. The pedestal portion 4a5 protrudes in the thickness direction of the bottom portion 4a1. The pedestal part 4a5 has a C-shaped outer shape in plan view. The bottom 4a1 is formed so as to surround the pedestal 4a5 in plan view. As for the cover part 4, the back surface side opposite to the surface where the base part 4a5 protrudes is depressed. In the pedestal portion 4a5, a C-shaped opening constitutes a part of the first opening 4b1. When the cover part 4 is attached to the housing | casing 2, the surface below the perpendicular direction in the base part 4a5 is comprised so that the surface along the baseplate 21e of the housing | casing 2 may be formed.

  The pedestal portion 4a5 has an outer shape slightly smaller than the through hole 2ab in the bottom plate 21e of the housing 2. The bottom portion 4a1 has a larger outer shape than the through hole 2ab in the bottom plate 21e of the housing 2. The cover part 4 is configured such that the pedestal part 4a5 can be fitted into the through hole 2ab of the housing 2. The cover portion 4 is configured such that the bottom portion 4a1 and the bottom plate 21e of the housing 2 are in contact with each other in a state where the pedestal portion 4a5 is fitted into the through hole 2ab of the housing 2.

  The wall 4c2 is formed in a flat plate shape. The wall 4c2 is provided so as to be orthogonal to the bottom 4a1. The wall 4c2 has a C-shaped outer shape when viewed from the front. As for wall part 4c2, C-shaped opening part comprises a part of 1st opening part 4b1. When the cover part 4 is attached to the housing | casing 2, the front surface of the wall part 4c2 is comprised so that the surface along the attachment surface 2aa of the housing | casing 2 may be formed. The wall portion 4c2 includes a plurality of bosses 4c6 protruding from the back surface of the wall portion 4c2 along the periphery of the C-shaped opening. The boss 4c6 has a screw hole 4ch formed at the tip. The cover portion 4 fixes the housing 2 and the cover portion 4 by screwing a screw inserted through the fixing hole 21ha of the fixing portion 21h in the housing 2 into a screw hole 4ch of the boss 4c6 in the cover portion 4. It is configured to be able to. The wall 4c2 is formed to have a slightly larger outer shape than the through-hole 2ab along the attachment surface 2aa. The cover portion 4 is configured such that the wall portion 4c2 and the back plate 21a of the housing 2 come into contact with each other in a state where the pedestal portion 4a5 is fitted into the through hole 2ab of the housing 2. The wall 4c2 includes a pair of contact pieces 4a9. The pair of contact pieces 4a9 are provided so as to face each other through the cylindrical portion 4b. The contact piece 4a9 protrudes in the thickness direction of the bottom 4a1. The contact piece 4a9 has a flat outer shape. The contact piece 4a9 constitutes a wide portion of the wall portion 4c2. The contact piece 4a9 is configured to be in contact with the housing 2 and support the cover portion 4.

  The pedestal portion 4a5 has an auxiliary piece 4a7. In the pedestal portion 4a5, when the cover portion 4 is attached to the housing 2, the auxiliary piece 4a7 is disposed so as to extend from the attachment surface 2aa side of the housing 2 in plan view. The auxiliary piece 4a7 is configured so that the wall portion 4c2 can be supported by the pedestal portion 4a5. The auxiliary piece 4a7 can increase the mechanical strength of the wall 4c2 and the pedestal 4a5. The auxiliary piece 4a7 has a plate-like outer shape. The auxiliary piece 4a7 has a triangular outer shape in a side view. The base part 4a5 protrudes from the bottom part 4a1 to form a step.

  The cover part 4 can abut the bottom part 4a1 and the bottom plate 21e via a sealing material. The cover portion 4 can abut the wall portion 4c2 and the back plate 21a via a sealing material. The sealing material is provided so that water can be prevented from entering through the gap between the housing 2 and the cover portion 4. For example, a silicone resin can be used as the sealing material. The cover portion 4 may have irregularities on the surface 3aa of the bottom portion 4a1 that contacts the periphery of the through-hole 2ab of the housing 2. Since the cover 4 has irregularities on the surface 3aa of the bottom 4a1 that comes into contact with the periphery of the through-hole 2ab of the housing 2, the adhesiveness with the sealing material can be improved. The bottom portion 4a1 includes a through hole 4ac penetrating in the thickness direction in the peripheral portion of the pedestal portion 4a5. The cover portion 4 can be fixed to the bottom plate 21e of the housing 2 using a screw inserted into the through hole 4ac. The cover 4 is screwed to the housing 2 from the outside of the housing 2 via the bottom 4a1.

  The pedestal portion 4a5 is formed such that, when the cover portion 4 is attached to the housing 2, the height of the step with the bottom portion 4a1 increases as it goes from the attachment surface 2aa side to the inside of the housing 2. The cover portion 4 is formed so that the height of the step of the pedestal portion 4a5 increases from the mounting surface 2aa side when the space between the housing 2 and the cover portion 4 is sealed using a sealing material. Thereby, it can suppress that the surplus part of a sealing material creeps up to the base part 4a5 from the attachment surface 2aa side.

  The cylindrical portion 4b is provided across the pedestal portion 4a5 and the wall portion 4c2 in a side view. The cylindrical part 4b is supported by the wall part 4c2 and the base part 4a5. The auxiliary piece 4a7 can increase the mechanical strength of the wall 4c2. When the auxiliary piece 4a7 seals between the housing 2 using a sealing material, it is possible to suppress the surplus of the sealing material from creeping up to the pedestal portion 4a5.

  The cylindrical portion 4b includes a protruding portion 4c5 that protrudes outward along the end portion of the second opening 4b2. The protrusion 4c5 has an annular outer shape. The cylindrical portion 4b may receive a large force from the wiring 12 to be inserted. Since the cylindrical portion 4b can increase the mechanical strength of the cylindrical portion 4b by the protruding portion 4c5, it can be prevented from being damaged even if it receives a large force from the wiring 12 to be inserted. The protrusion 4c5 can also suppress water from entering the inside of the housing 2 through the wiring 12.

  The cover part 4 is provided with one second opening 4b2. Since the cover portion 4 includes one second opening 4b2, it is possible to easily take out the plurality of wirings 12 from one place. The cover part 4 is not restricted only to the structure provided with one 2nd opening part 4b2. The cover part 4 can be set as the structure provided with several 2nd opening part 4b2. For example, when two second openings 4b2 are provided, the cover 4 can be configured so that the first wiring 12a and the second wiring 12b can be inserted into one second opening 4b2. When the two second openings 4b2 are provided, the cover 4 can be configured such that the third wiring 12d can be inserted into the other second opening 4b2. By providing the plurality of second openings 4 b 2, the cover unit 4 can suppress, for example, noise from being superimposed between the third wiring 12 d and the other wiring 12.

  The cover part 4 can also be set as the structure provided with the auxiliary | assistant cover. The auxiliary cover can be configured to block the first opening 4b1 of the cover portion 4. The auxiliary cover that closes the first opening 4b1 can suppress dust from being mixed inside the electric device 11 until the electric device (power conversion device) 11 is installed on the wall surface 50aa.

  The housing 2 is configured such that the screw head 8a can protrude from the tip of the columnar body 21g by fixing the screw in the screw hole 21k as shown in FIG. The housing | casing 2 can be attached to wall surface 50aa using the screw | thread which protrudes from the front-end | tip of the columnar body 21g. A screw head 8 a protruding from the tip of the columnar body 21 g is configured to be hooked on the bag portion 9 h of the wall mounting plate 9. The housing 2 can also be directly fixed to the wall surface 50aa. The electric device (power conversion device) 11 can attach the housing 2 to the wall mounting plate 9 fixed to the wall surface 50aa using the columnar body 21g.

  Below, the power converter device of the comparative example compared with the above-mentioned electric equipment (power converter device) 11 is demonstrated.

  The power conversion device of the comparative example is different in that a wire is drawn from a hole penetrating the back plate without using the cover portion 4 in the electric device 11. When the power conversion device of the comparative example is attached to a wall surface of a building, a hole is made in the back plate of the housing opposite to the wall surface of the building in order to draw wiring into the inside of the housing. The power converter draws wiring into which DC power from a solar cell is input into the housing using a hole formed in the back plate as a drawing port. The power converter draws the wiring from which AC power is output from the power converter into the housing using a hole formed in the back plate as a drawing port.

  In the power converter, after the wiring drawn into the housing is electrically connected to the power converter, the hole formed in the back plate is closed with the filler. The power conversion device can perform a waterproof process by closing a hole through which the wiring is inserted with a filler.

  However, when the casing is attached to the wall of a building, it is difficult for the power conversion device to waterproof the hole into which the wiring is drawn, and the waterproof performance is affected by the technical ability of the worker who performs the waterproof processing. It tends to be. The power conversion device sometimes performs waterproofing work at high places, and the waterproof function tends to be greatly influenced by the technical ability of the worker who performs the waterproofing process. When the waterproof function is not sufficient for the power conversion device, rainwater that has traveled along the wall surface and the wiring may enter the inside of the housing from the hole into which the wiring is drawn. In the power conversion device, when rainwater enters the inside of the housing, there is a possibility that a malfunction occurs in the power converter provided in the housing.

  The electric device 11 of the present embodiment includes the cover portion 4 provided with the second opening 4b2 above the vertical direction from the lower end of the first opening 4b1 in the vertical direction. It is inserted into the inside of the housing 2 in the direction of. In other words, the cover part 4 can arrange | position the wiring 12 derived | led-out from the wiring outlet 50ab of wall surface 50aa so that it may lift from the perpendicular direction in front of the 2nd opening part 4b2. The electrical device 11 can prevent the rainwater transmitted through the wiring 12 from entering the inside of the housing 2 by the wiring 12 being inserted into the housing 2 so as to face the upper direction in the vertical direction. It becomes possible.

  In the electric device 11 of the present embodiment, the first opening 4b1 is configured to extend from a surface along the attachment surface 2aa side of the housing 2 to a lower surface in the vertical direction of the housing 2 that intersects the surface. Preferably it is.

  In the electric device 11, the first opening 4b1 is formed from the surface along the attachment surface 2aa side of the housing 2 to the surface below the vertical direction of the housing 2 that intersects the surface, so the wall surface 50aa. It is also possible to connect the conduit 14 from below in the vertical direction. The conduit 14 contains the wiring 12 to be connected to the power converter 11a. The wiring 12 can be inserted into the housing 2 from the conduit 14 via the cover portion 4.

  In the electric device 11 of the present embodiment, the opening area of the second opening 4b2 is preferably smaller than the opening area of the first opening 4b1.

  In the electrical device 11, the opening area of the second opening 4b2 is made smaller than the opening area of the first opening 4b1, thereby making it easy to waterproof the cover 4 with a sealing material. For example, a silicone resin can be used as the sealing material. The opening area can be measured by the projected area. For example, when there are two or more second openings 4b2, the opening area can be the total area.

  In the electric device 11 of this embodiment, it is preferable that the inner surface of the cylindrical portion 4b has a rounded curved surface shape continuous from the first opening 4b1 to the second opening 4b2.

  The cylindrical portion 4b has a rounded curved surface whose inner surface is continuous from the first opening 4b1 to the second opening 4b2, thereby preventing the wiring 12 from being caught or damaged. It becomes possible to do.

  In the electrical apparatus 11 of the present embodiment, as shown in FIGS. 5 and 6B, the cover portion 4 is a filler that closes the gap between the wiring 12 drawn from the wiring outlet 50ab of the wall surface 50aa and the wiring outlet 50ab. It is preferable to provide a storage space for storing 50d.

  Since the electrical equipment 11 has the storage space in the cover portion 4, it is possible to suppress rain water from being applied to the filler 50d and to further increase the reliability. The cover 4 is recessed toward the housing 2 to form a storage space that gradually decreases from the first opening 4b1 to the second opening 4b2. The cover portion 4 can easily draw the wiring 12 by forming a storage space that gradually decreases from the first opening 4b1 to the second opening 4b2.

  In the electrical device 11 of the present embodiment, the cover portion 4 protrudes upward in the vertical direction from the through hole 2ab inside the housing 2 to form a step, and the step is formed on the housing 2 from the mounting surface 2aa side. It is preferable that it becomes large as it goes inside.

  In the electrical device 11, even when the casing 2 and the cover portion 4 are sealed using a sealing material, water may enter the inside of the casing 2 beyond the sealing material. The cover portion 4 is formed such that the step between the bottom portion 4a1 and the pedestal portion 4a5 is increased from the attachment surface 2aa side, so that ingress of water can be suppressed.

  Below, the attachment process of the electric equipment (power converter device) 11 is demonstrated using FIG. 5 and FIG.

  When the electrical equipment (power conversion device) 11 attaches the storage box 10 of the electrical equipment 11 to the wall 50aa on the outdoor side, the wall mounting plate 9 is provided in advance on the wall 50aa to be attached. The wall mounting plate 9 is mounted so that the wiring 12 led out from the wall surface 50aa can be drawn into the electric device (power converter) 11. In the mounting step, the gap between the wiring outlet 50ab opened on the wall surface 50aa and the wiring 12 is closed with the filler 50d. For example, a silicone resin can be used as the filler 50d. The filler 50d can prevent rainwater or the like from entering the wall.

  Next, in the attachment step, the electric device (power conversion device) 11 is installed on the wall attachment plate 9 attached to the wall surface 50aa. The electrical device (power converter) 11 loosens the fixing screw of the front panel 3 provided on the front surface of the housing 2 and removes the front panel 3 from the housing 2 in advance. The electric device (power converter) 11 has a cover 4 fixed to the housing 2 in advance.

  In the attaching step, the head portion 8a of the screw protruding from the back plate 21a of the housing 2 can be hooked on the bag portion 9h of the wall attaching plate 9 with the front panel 3 removed. In the attaching step, the wiring 12 is inserted into the cylindrical portion 4 b of the cover portion 4 simultaneously with the wall hanging of the housing 2. In the attaching step, the wiring 12 inserted through the cylindrical portion 4 b of the cover portion 4 is drawn into the housing 2. The wiring 12 is drawn into the housing 2 along the rounded curved surface shape of the cylindrical portion 4b.

  In the attaching step, the filler 50d that seals the gap between the wiring 12 led out from the wiring outlet 50ab of the wall surface 50aa and the wiring outlet 50ab is accommodated in the cylindrical portion 4b of the cover 4 by hanging the housing 2 on the wall. Is done. The wiring 12 drawn into the housing 2 is connected to the power converter 11 a housed in the housing 2. In the attachment step, the gap between the wiring 12 connected to the power converter 11a and the second opening 4b2 of the cover 4 is sealed with a sealing material.

  In the attaching step, as shown in FIG. 2, the front panel 3 covers the front surface of the housing 2 with the fitting portion 3 ab of the front panel 3 hooked on the claw portion 21 d 1 protruding from the upper plate 21 d of the housing 2. Arrange to close. The front panel 3 fixes the front panel 3 to the housing 2 using a fixing screw. The electric device (power conversion device) 11 can be attached to the wall surface 50aa by fixing the front panel 3 to the housing 2 by the first screw 7.

DESCRIPTION OF SYMBOLS 1 Electrical circuit 2 Housing | casing 2aa Mounting surface 2ab Through-hole 3 Front panel 4 Cover part 4a Mounting part 4b Cylindrical part 4b1 1st opening part 4b2 2nd opening part 11 Electric equipment for outdoor installation (power converter device)
12 Wiring 50aa Wall surface 50ab Wiring outlet 50d Filling material

Claims (6)

A box-shaped housing whose front is opened, a front panel attached so as to close the front of the housing, and a mounting surface side of the housing attached to the wall surface on the outdoor side of the house A cover portion covering the through-hole,
The cover part is integrally formed, and the cover part includes an attachment part attached to the housing, and a cylindrical part through which a wiring electrically connected to an electric circuit housed in the housing is inserted.
The cylindrical portion has a first opening that opens toward the outside of the housing, and a second opening that opens toward the inside of the housing on the opposite side of the first opening. And
The electric equipment for outdoor installation, wherein the second opening is provided above the lower end in the vertical direction in the first opening in the vertical direction.   2. The electric device for outdoor installation according to claim 1, wherein an opening area of the second opening is smaller than an opening area of the first opening.   The said cover part is equipped with the storage space in which the filler which block | closes the clearance gap between the said wiring withdraw | derived from the wiring outlet of the said wall surface, and the said wiring outlet is stored. Electrical equipment for outdoor installation.   The electric device for outdoor installation according to claim 3, wherein an inner surface of the cylindrical portion has a rounded curved surface shape continuous from the first opening to the second opening.   The said 1st opening part is comprised ranging from the surface along the attachment surface side of the said housing | casing to the surface below the perpendicular direction of the said housing | casing which cross | intersects the said surface. Electric equipment for outdoor installation.   The cover portion protrudes upward in the vertical direction from the through-hole in the housing to form a step, and the step becomes larger as it goes from the mounting surface side to the inside of the housing. The electric device for outdoor installation according to claim 5, wherein:

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