JP2012095399A - Panel device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a panel device that can efficiently dissipate heat even if an inner container having a heat generating section is housed in a box body thereof.SOLUTION: A panel device comprises a box body 1 that is disposed so that its back faces a building and an inner container 2 housed in the box body 1. The inner container 2 comprises a container body 22, which has a built-in functional unit 21 comprising an electronic circuit. The functional unit 21 has a heat generating section 211 generating more heat than the other sections thereof at the time of driving. In the container body 22 the heat generating section 211 is disposed against a back wall 221 of the container body 22. The inner container 2 is attached on an attachment plate 5 fixed on a back plate 31 of the box body 1 so that the back wall 221 faces backwardly.

Description

  The present invention relates to a panel device in which an internal unit is accommodated in a box body.

  2. Description of the Related Art Conventionally, a board apparatus in which an internal unit is stored in a box body has been provided. Examples of such a panel device include a DC distribution panel (see Patent Document 1) that supplies DC power to a device that operates with DC, and an information panel that aggregates wiring of LAN, telephone, television, and the like.

  Some internal units housed in the box body of the DC distribution board include a converter unit. In addition, there are a router, a booster, etc. in the internal unit stored in the box body of the information board. The router includes a switching unit, and the booster includes an amplification unit. Active elements are used in the converter unit, the switching unit, and the like, and a lot of heat is generated during driving as compared with other parts.

JP 2008-042999 A

  The converter unit, the switching unit, and the like as described above are main heat sources in the internal unit. For this reason, the internal unit becomes hot during driving, which may affect the operation of the internal unit.

  The present invention has been made in view of the above-described reasons, and an object of the present invention is to provide a panel device that efficiently radiates heat even when an internal unit having a heat generating portion is housed in a box body.

  The board apparatus of the present invention has a box body in which a back plate forming one surface is installed along a building, and a functional part that is housed in the box body and performs predetermined processing is built in the body. The internal functional unit has a heat generating part that generates heat when driven, and the internal unit is stored so that the rear wall of the main unit faces the back plate of the box body. In the body, the heat generating part is arranged on the rear wall side.

  The panel device further includes a mounting plate disposed along the inner surface of the back plate of the box body and to which the inner unit is attached, and a part of the rear wall of the unit body is constituted by a heat transfer plate having heat transfer properties. It is desirable that the heat transfer plate of the inner unit and the mounting plate are in contact with each other.

  In this panel apparatus, it is more desirable that the heat transfer plate is integrally provided with heat radiating fins constituted by a plurality of plates extending outside the container body.

  In this panel apparatus, the heat radiating fins protrude rearward from the mounting plate, and it is more desirable that the upper and lower plates of the box body are provided with ventilation slits, respectively.

  In this board apparatus, it is more desirable that the ventilation slit is provided behind the position of the mounting plate.

  In this board apparatus, it is more desirable that the upper edge of the mounting plate is in contact with the upper plate.

  In this panel apparatus, it is more desirable that the mounting plate has a heat insulating property at least at the upper edge.

  In this board apparatus, it is more desirable that the adjacent plates of the radiating fins are arranged so as to face each other, and the plates at both ends are opposed to the both side plates of the box body.

  The present invention has an advantage that heat can be efficiently dissipated even if the internal device having the heat generating portion is housed in the box body.

1 is a longitudinal sectional view of a main part showing Embodiment 1. FIG. It is an exploded perspective view same as the above. It is a disassembled perspective view of the internal unit of Embodiment 2. (A) is a front view of the above internal unit, (b) is a plan view of the above internal unit, and (c) is a side view of the above internal unit. It is a principal part perspective view same as the above. It is principal part sectional drawing same as the above. It is a longitudinal cross-sectional view same as the above. It is a cross-sectional view same as the above.

  The panel device is a box body in which an internal unit is housed, and is used for various purposes such as a DC distribution panel and an information panel. Hereinafter, a DC distribution board will be described as an example of the board device. The internal unit housed in the box body in the DC distribution board has a built-in functional unit including an electronic circuit including a converter unit. A plurality of internal units are housed in the box body of the DC distribution board. Hereinafter, a DC distribution board in which an internal unit having a converter unit is housed in a box body will be described as an embodiment.

(Embodiment 1)
The board apparatus of this embodiment is provided with the box main body 1 installed so that a back surface may follow the wall surface of a building, and the inner unit 2 accommodated in the box main body 1, as shown in FIG. The box body 1 includes a body 3 having an opening surface on one surface and a cover 4 that covers the opening surface. In the following description, the vertical direction in FIG. 2 is the vertical direction, and the surface with the cover 4 is the front surface.

  The inner unit 2 includes a rectangular box-shaped body 22. As shown in FIG. 1, a functional unit 21 made of an electronic circuit is built in the container 22, and the functional unit 21 includes a converter unit 211 that steps down a DC voltage. The converter unit 211 generates more heat than the other parts of the functional unit 21 during driving (hereinafter, the converter unit 211 is referred to as a “heating unit 211”).

  The heat generating part 211 is arranged in the container 22 close to the rear wall 221. Thereby, the heat generating part 211 is biased and located on the rear wall 221 side of the container 22, and the temperature rise on the front side of the inner unit 2 can be suppressed. The rear wall 221 of the container 22 has an opening 222, and the heat transfer plate 23, which is a flat plate having a heat transfer property and a thickness larger than the rear wall 221, is formed in the opening 222 of the rear wall 221. Is arranged (see FIG. 1).

  In the inner unit 2, the heat generating part 211 is in contact with the heat transfer plate 23. However, since the heat transfer plate 23 is often made of metal and has conductivity, when the heat transfer plate 23 is brought into direct contact with the heat generating portion 211, a short circuit may occur. Therefore, in this embodiment, the insulator 24 with a small thickness is sandwiched between the heat transfer plate 23 and the heat generating portion 211, and the heat transfer plate 23 and the heat generating portion 211 are brought into contact with each other via the insulator 24. . Thereby, the heat of the heating element 211 can be efficiently transmitted to the heat transfer plate 23 while preventing a short circuit. Examples of the form of the insulator 24 include a form formed in a sheet shape and sandwiched between the heat transfer plate 23 and the heat generating part 211, and a form applied to the heat transfer plate 23 or the heat generating part 211.

  As shown in FIG. 2, the body 3 of the box body 1 that houses the inner unit 2 includes a back plate 31 that closes the back surface and a peripheral plate 32 that surrounds the upper, lower, left, and right sides. The right end of the cover 4 is swingably attached to the front end of the peripheral plate 32, and the cover 4 can be opened and closed in the front-rear direction using a handle 41 at the left end.

  In the present embodiment, a substantially rectangular plate-shaped mounting plate 5 is used to house the inner device 2 in the box body 1. The mounting plate 5 includes an inner unit mounting portion 52 that is a flat plate to which the inner unit 2 is mounted, and a fixed piece 51 that extends from both left and right sides of the inner unit mounting portion 52 and is located behind the inner unit mounting portion 52. I have. The mounting plate 5 is disposed in the box body 1 by fixing the fixing piece 51 to the inner surface of the back plate 31 by an appropriate means such as a screw.

  As shown in FIG. 2, the inner unit 2 is arranged on the front surface of the inner unit mounting portion 52 of the mounting plate 5 in the left-right direction. Each internal unit 2 is fixed to the mounting plate 5 by appropriate means such as screwing. When the inner unit 2 is attached to the attachment plate 5, the heat transfer plate 23 comes into contact with the attachment plate 5. Thereby, the heat of the inner unit 2 can be directly transferred from the heat transfer plate 23 to the mounting plate 5.

  Here, means for supplying electric power to the inner unit 2 will be described. The panel apparatus according to the present embodiment supplies power to the internal unit 2 based on power from a commercial power source (not shown) that supplies AC power, a solar power generation system (not shown) that supplies DC power, or the like. Power is supplied from a power conversion unit (not shown) that generates DC power. AC power from the commercial power source is converted to DC power by an AC / DC converter provided in the power conversion unit. Further, the DC power is stepped down or boosted by a DC / DC converter provided in the power conversion unit, and is supplied to the inner unit 2 through a power supply path provided in the panel device.

  In the present embodiment, a conductive bar 6 (see FIG. 7) is provided as a power feeding path. The conductive bar 6 has a rectangular bar shape extending in the left-right direction, and is provided above the attachment portion of the inner device 2 in the inner device attachment portion 52 of the attachment plate 5. The conductive bar 6 is covered with a bar cover 61 except for the lower part.

  A mounting adapter 7 for electrically connecting to the conductive bar 6 is provided on the upper part of the inner unit 2 (see FIG. 3). The mounting adapter 7 is provided with a conductive bar groove 71 for inserting the conductive bar 6 therethrough. In each conductive bar groove 71, one end of a connection body 72 electrically connected to the conductive bar 6 is arranged. The other end of the connection body 72 is electrically connected to an input terminal 223 provided on the upper part of the inner unit 2 (see FIG. 7). Thereby, the DC power from the power conversion unit is supplied to the inner unit 2 through the conductive bar 6.

  In addition, an output terminal 224 is provided at the lower portion of the container body 22. The output terminal 224 is connected to wiring (not shown) to a device that operates with direct current.

  In the present embodiment, a disconnector 8 is attached to the mounting plate 5 for interrupting power supply to the power supply path (conductive bar 6) at the time of leakage or panel repair. The disconnector 8 is electrically connected to the conductive bar 6 by the mounting adapter 81, and DC power from the power conversion unit is supplied to the conductive bar 6 through the disconnector 8.

  As shown in FIG. 2, an inner frame 9 that is a rectangular plate is attached to the attachment plate 5 after the inner unit 2 is attached from the front. The middle frame 9 has an opening 91, and a part of the front side of the inner unit 2 is exposed from the opening 91 of the middle frame 9 after mounting.

(Embodiment 2)
As shown in FIG. 3, the present embodiment is different from the first embodiment in that heat radiating fins 231 formed by a plurality of plates extending rearward are integrally provided. Since the heat transfer plate 23 includes the heat radiation fins 231 in which a plurality of plates are arranged, the heat radiation area is increased, and the heat of the inner unit 2 can be efficiently radiated.

  The radiating fins 231 in the present embodiment protrude rearward from the rear wall 221 of the inner unit 2, and each plate of the radiating fins 231 has a shape that faces in the left-right direction and is arranged side by side in the left-right direction. It is desirable (see FIG. 4). At this time, in the box body 1, the space formed between the plates of the heat radiating fins 231 faces in the vertical direction. Moreover, the warmed air moves upward. Thereby, the direction of the space formed in the radiation fins 231 and the direction in which the air heated by the heat of the inner unit 2 flows match, and the heat of the inner unit 2 can be radiated from the radiation fins 231 more efficiently.

  As shown in FIG. 5, the inner unit attachment portion 52 includes an opening window 521 for inserting the heat radiation fin 231. In the present embodiment, the inner unit 2 is attached to the mounting plate 5 by screwing the radiating fin 231 through the opening window 521 and then screwing it to the inner unit mounting part 52. In the state where the inner unit 2 is mounted on the mounting plate 5, the radiation fins 231 protrude between the mounting plate 5 and the back plate 31 (see FIG. 6).

  As shown in FIG. 7, ventilation windows 331 and 341 are provided on the upper plate 33 and the lower plate 34 of the peripheral plate 32 of the body 3, respectively. The two ventilation windows 331 and 341 have a shape in which linear through holes (slits) 332 are arranged in the left-right direction with the front-rear direction as the longitudinal direction (see FIG. 8). The ventilation window 331 provided on the upper plate 33 discharges the air heated by the heat generated by the inner unit 2 in the box body 1 to the outside. Accordingly, a ventilation window 341 provided in the lower plate 34 takes in outside air from the outside of the box body 1 into the box body 1. The above-described two ventilation windows 331 and 341 form a flow of air from the bottom to the top in the box body 1, and the air warmed by the heat generated by the internal unit 2 can be efficiently discharged to the outside.

  As shown in FIG. 7, the upper and lower ventilation windows 331 and 341 are preferably located between the device mounting plate 5 and the back plate 31 of the body 3. As a result, the ventilation windows 331 and 341 overlap with the radiating fins 231 in the vertical direction (see FIG. 8), and a flow of air that flows from the bottom to the top of the radiating fins 231 is formed. Can be discharged to the outside.

  Furthermore, in order to improve the effect of the two ventilation windows 331 and 341, it is desirable that the upper end edge of the mounting plate 5 is in contact with the upper plate 33. Thereby, it can prevent that the flow of the air between both the ventilation windows 331 and 341 is disturb | confused, and the air warmed by the heat_generation | fever of the internal unit 2 can be discharged | emitted efficiently outside.

  Moreover, it can suppress that the heat | fever which the inner unit 2 emits is transmitted to the front (the inner unit 2 side) of the mounting plate 5 by giving heat insulation to the mounting plate 5. In order to give heat insulation to the mounting plate 5, the mounting plate 5 may be formed of a heat insulating material, or a heat insulating material may be attached to the entire mounting plate 5. Alternatively, a heat insulating material may be attached only to the upper end side of the mounting plate 5 that is in contact with the upper plate 33.

  Other configurations and functions are the same as those of the first embodiment.

  In Embodiments 1 and 2 described above, the form in which the heat transfer plate 23 is provided on the rear wall 221 of the container 22 has been described, but the form in which the heat transfer plate 23 is not provided on the rear wall 221 may be employed. Moreover, in Embodiment 2, the form in which the internal unit attachment part 52 of the attachment plate 5 is not provided with the opening window 521 may be sufficient.

DESCRIPTION OF SYMBOLS 1 Box main body 2 Internal unit 21 Function part 211 Heat generating part 22 Body 221 Rear wall 23 Heat transfer plate 231 Radiation fin 31 Back plate 33 Upper plate 331 Ventilation window 34 Lower plate 341 Ventilation window 5 Mounting plate

Claims (8)

  A box main body in which a back plate forming one surface is installed along a building, and an internal unit that is housed in the box main body and includes a functional unit that performs a predetermined operation in the box main body, The functional unit in the container has a heat generating part that generates heat when driven, and the inner unit is accommodated such that a rear wall of the container is opposed to a back plate of the box body. In the body, the heat generating part is arranged on the rear wall side.   The apparatus further includes a mounting plate disposed along an inner surface of the back plate of the box body and to which the inner unit is attached, and a part of the rear wall of the unit body is configured by a heat transfer plate having heat transfer properties. The panel apparatus according to claim 1, wherein the heat transfer plate of the inner unit and the mounting plate are in contact with each other.   The board device according to claim 2, wherein the heat transfer plate is integrally provided with heat radiation fins configured by a plurality of plates extending outside the container body.   4. The panel device according to claim 3, wherein the radiating fin protrudes rearward from the mounting plate, and a ventilation window is provided on each of an upper plate and a lower plate of the box body.   The panel device according to claim 4, wherein the ventilation window is provided behind the position of the mounting plate.   The board apparatus according to claim 5, wherein an upper end edge of the mounting plate is in contact with the upper plate.   The board device according to claim 6, wherein the mounting plate has heat insulation properties at least at the upper end edge.   In the said radiating fin, the adjacent board is arrange | positioned so that it may respectively oppose, and the board of both ends is facing the both-sides board of the said box main body, respectively, The any one of Claims 3-7 characterized by the above-mentioned. The board apparatus described in 1.

Images