JP2012253255A - Board cooling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a board cooling device having a structure that is a box for housing an electric apparatus including a board cooling device having a detachable cover, eliminates the need to fasten an upper end of the cover with screws when the cover is attached, and easily attaches or detaches the cover while an apparatus body and the cover are kept parallel to each other.SOLUTION: A board cooling device includes: a base part 3 to which a cooling device body 4 is attached; and a cover 5 detachably covering the cooling device body 4 supported by the base part 3. A first guide part 8, having an inclination part 7 fitting into the cover 5, is formed at an upper part of the base part 3, and a first guided part 10, having an inclination side 9 sliding the cover 5 to a fitting position along the inclination part 7 of the first guide part 8, is formed at the upper part of the cover 5. Lower parts of the base part 3 and the cover 5 include screw attachment mechanisms for fixing the lower parts of the base part 3 and the cover 5 at the fitting position.

Description

  The present invention relates to a cover mounting structure in a panel cooling apparatus.

  Boxes for electrical equipment such as switchboards, distribution boards, and communication boards have traditionally been equipped with panel heat exchangers that exchange heat with outside air as a means to prevent temperature rise due to heat generated by internal equipment. Widely used. For example, Patent Document 1 describes a panel-mounted heat exchanger for mounting in a panel, and as a cover mounting structure that covers the outside of the panel heat exchanger, a protrusion formed on the upper end of the heat exchanger body, A structure is disclosed in which a bent piece formed on the upper end of the cover is hooked, the lower part of the cover is rotated in the direction of the apparatus main body, and the heat exchanger main body for the panel and the screw formed on the lower end of the cover are aligned and attached.

  Adopting this structure has the advantage of eliminating the need for screwing the top edge of the cover. On the other hand, the cover needs to be attached at an angle to the heat exchanger body. In the case where a sufficient surplus space cannot be secured, there is a problem that the detaching operation becomes difficult.

Japanese Patent No. 4349624

  The object of the present invention is to solve the above-mentioned problems, and is an electrical equipment storage box provided with a panel cooling device having a detachable cover, and when attaching the cover, screwing of the upper end of the cover is unnecessary, And it is providing the electric equipment storage box which has a structure which can be easily attached or detached, keeping an apparatus main body and a cover in parallel.

  The board cooling device of the present invention made to solve the above-described problem includes a base portion to which a cooling device main body is attached, and a cover that detachably covers the cooling device main body supported by the base portion. A first guide portion having an inclined portion that fits with the cover is formed on the upper portion, and the cover is slid along the inclined portion of the first guide portion to the fitting position on the upper portion of the cover. A first guided portion having a side, and a screwing mechanism for fixing the lower portion of the base portion and the lower portion of the cover at the fitting position at the lower portion of the base portion and the lower portion of the cover. It is a feature.

  According to a second aspect of the present invention, in the panel cooling device according to the first aspect, a second guide portion having an inclined portion fitted to the cover is formed at a lower portion of the base portion, and the lower portion of the cover is formed. The second guided portion having an inclined side for sliding the cover to the fitting position along the inclined portion of the second guide portion is formed.

  According to a third aspect of the present invention, there is provided the panel cooling apparatus according to the second aspect, wherein the screwing mechanism includes a screw hole portion formed in a lower inclined portion of the base portion and a lower inclined side of the cover, and the screw hole. It consists of the screw | thread inserted in a part, It is characterized by the above-mentioned.

  According to a fourth aspect of the present invention, in the panel cooling device according to the third aspect, the second guided portion is formed by bending the lower horizontal side of the U-shaped cover and the lower end of the U-shaped cover. The lower horizontal side is formed with an opening hole portion facing the screw hole portion formed in the inclined side.

  The panel cooling device according to the present invention includes a panel cooling device on the outer surface of the housing, the panel cooling device includes a base portion for attaching the cooling device body to the housing, and a cooling device supported by the base portion. A cover for detachably covering the main body is provided. In the present invention, a first guide portion having an inclined portion fitted to the cover is formed on the upper portion of the base portion, and the cover is provided on the upper portion of the cover along the inclined portion of the first guide portion. A first guided portion having an inclined side to be slid to the mating position is formed, and the lower portion of the base portion and the lower portion of the cover are fixed to the lower portion of the base portion and the lower portion of the cover at the mating position. When the cover is attached, the upper end of the cover is not required to be screwed, and the cover can be easily attached and detached by sliding from the oblique direction while keeping the cover parallel to the device body. An electrical equipment storage box having a structure can be realized. In addition, according to the structure, since it is not necessary to insert and rotate the cover from an oblique direction and fix it, the space that has been conventionally required for the attaching / detaching operation with the rotation of the cover becomes unnecessary. can get.

  According to the second aspect of the present invention, a second guide portion having an inclined portion that fits with the cover is formed at a lower portion of the base portion, and an inclination of the second guide portion is formed at the lower portion of the cover. The guide part formed in two places on the top and bottom by the structure in which the second guided part having an inclined side for sliding the cover to the fitting position along the part is formed. The workability is improved by using the guided part.

  According to a third aspect of the present invention, the screwing mechanism is composed of a screw hole portion formed in the lower inclined portion of the base portion and the lower inclined side of the cover, and a screw inserted into the screw hole portion. By doing so, the screw hole portion and the screw inserted into the screw hole portion can be made invisible from the front direction of the cover, and an electric device storage box excellent in aesthetics can be provided. .

  According to a fourth aspect of the present invention, the second guided portion includes a lower horizontal side of the U-shaped cover and an inclined side formed by bending the lower end portion of the U-shaped cover, and the lower horizontal side By forming an opening hole facing the screw hole formed in the inclined side on the side, the screwing operation for fixing the base portion and the cover in the fitted state can be easily performed from the outside of the cover. be able to.

It is a general view provided with a panel cooling device on the outer surface of the electrical equipment storage box. It is the state figure which removed the cover from the board cooling device of FIG. It is a general view of the panel cooling device. It is the state figure which removed the cover from the board cooling device of FIG. 3, and was seen from the board inner side. It is the state figure which looked at FIG. 4 from the board outer side. It is the whole perspective view which looked at the base part from the board inner side. It is the whole perspective view which looked at the cover from the board inner side. It is explanatory drawing in the non-locking state of a cover and a base part. It is a figure explaining the upper part of FIG. It is side surface sectional drawing in the latching state of a cover and a base part. It is a figure explaining the upper part of FIG. It is a figure which shows other embodiment. It is a lower left enlarged view of FIG. FIG. 14 is an explanatory perspective view of FIG. 13. It is a figure which shows other embodiment. It is a figure which shows other embodiment.

Preferred embodiments of the present invention are shown below.
FIG. 1 shows an overall view of an electric equipment storage box having a panel cooling device on the outer surface of the housing, and FIG. 2 is a state diagram with the cover removed from the panel cooling apparatus of FIG. The state figure attached to the storage box is shown.

  As shown in FIG. 1, the electrical equipment storage box 1 of the present invention includes a panel cooling device 2 on the outer surface of the housing. The panel cooling device 2 may have a structure that is attached to a door / back plate in addition to the side of the housing.

  FIG. 3 is an overall view of the panel cooling device, FIG. 4 is a state diagram viewed from the inside of the panel with the cover removed from the panel cooling device of FIG. 3, and FIG. 5 is a view of FIG. 4 viewed from the outside of the panel. A state diagram is shown. 6 shows an overall perspective view of the base portion as seen from the inside of the panel, FIG. 7 shows an overall perspective view of the cover as seen from the inside of the board, and FIG. 8 shows an unlocked state of the cover and the base portion. FIG. 9 is a diagram for explaining the upper part of FIG. FIG. 10 shows a side cross-sectional view of the cover and the base portion in the locked state, and FIG. 11 shows a diagram for explaining the upper part of FIG.

  As shown in FIGS. 3 to 5, the panel cooling device 2 according to the present embodiment includes a base portion 3 for attaching a cooling device body 4 including a control unit, a Peltier module 100, and the like to the side surface of the housing, and is supported by the base portion A cover 5 is provided for removably covering the cooled cooling device main body. Note that a cooling device mounting portion 200 is formed on the base portion 3. The board cooling device of the present embodiment is a Peltier type board cooling device, but may be a heat exchanger or the like.

  The Peltier module 100 is provided with heat exchange portions called heat sinks on both sides of a Peltier element. In order to enhance the cooling effect, the heat radiating side heat exchanging portion is slightly larger than the heat absorbing side heat exchanging portion to increase the heat radiating area and is screwed to the opening of the base portion.

  As shown in FIGS. 5 and 6, a heat absorption side overhanging space portion 6 that protrudes from the heat absorption side to the heat radiation side is formed in the upper portion of the base portion 3. In this embodiment, the heat absorption side overhanging space portion 6 is a rectangular parallelepiped section partitioned by a bottom surface, a ceiling surface, and a wall surface, and a power source portion such as a Peltier module is disposed in this space. With this structure, the area (volume) on the heat absorption side can be increased without increasing the size of the entire cooling device, and the cooling efficiency is improved.

  As shown in FIG. 2, the base portion 3 is fixed to the side surface of the housing of the electric device storage box 1, and the cooling device body 4 including a control unit, a Peltier module, and the like is attached to the fixed base portion 3. On the other hand, the cover 5 covering the cooling device main body 4 supported by the base portion 3 has a structure that is detachably attached to the base portion 3. As shown in FIG. 7, the cover 5 has a box-like structure opened in the base portion direction.

  As shown in FIG. 6, a first guide portion 8 having an inclined portion 7 that fits with the cover 5 is formed on the upper portion of the base portion 3. In the present embodiment, the first guide portions 8 are respectively formed on the left and right end portions of the upper surface of the heat absorption side overhang space portion 6. However, as another embodiment, the first guide portion 8 is formed on the base portion 3. It may be formed directly upright or formed over the upper surface of the heat absorption side overhanging space 6.

  As shown in FIGS. 7 to 11, the cover 5 has an inclined side 9 that slides the cover from the oblique direction to the fitting position along the inclined portion 7 of the first guide portion 8, as shown in FIGS. 7 to 11. One guided portion 10 is formed. The inclined side 9 is a side protruding obliquely downward toward the cover opening, and is formed across the left and right direction of the cover top surface. A side formed by bending the upper end portion of the inclined piece 9 is used as an attachment side 11 used for fixing to the cover 5. On the other hand, as shown in FIG. 9, the inclined sides 9 at the left and right end portions of the top surface of the cover are extended downward, and at the lower end portion thereof, the lower end portion is placed horizontally with respect to the floor surface (base portion). A vertical side 12 that is bent perpendicularly) and a horizontal side 13 that is further bent perpendicularly to the floor surface (parallel to the base portion). It functions as a reinforcement. By forming the reinforcing portion, the inclined side 9 is effectively prevented from being deformed when the inclined side 9 is slid along the first guide portion 8 of the base portion 3. By suppressing the deformation of the inclined side 9, the fitting operation between the base portion 3 and the cover 5 can be performed stably, and the workability can be improved. The reinforcing portion in the present embodiment is formed by bending the lower end portion of the inclined piece 9 into an L shape. However, as shown in FIG. 12, the lower end portion of the inclined piece 9 is perpendicular to the floor surface (base It may consist only of the horizontal side 13 bent in parallel to the part.

  According to the above structure, the cover can be held at the fitting position with the base portion 3 without screwing the upper portion of the cover 5, so that the screwing mechanism at the upper end of the cover can be omitted. Furthermore, when the base part 3 and the cover 5 are attached / detached, the cover 5 can be easily attached / detached by sliding the cover 5 in an oblique direction while keeping it parallel to the cooling device main body 4, so that the workability is improved and the cover is improved. Since it is not necessary to insert and rotate 5 from an oblique direction and fix it, an effect of eliminating the space conventionally required for the attaching / detaching operation accompanied by the rotation of the cover can be obtained.

  As shown in FIGS. 11 and 13, a second guide portion 16 having an inclined portion 15 that fits with the cover is formed at the lower portion of the base portion 3, and the second guide portion is formed at the lower portion of the cover 5. A second guided portion 18 having an inclined side 17 that slides the cover to the fitting position along the 16 inclined portions 15 is formed. In this embodiment, the 2nd guide part 16 is formed over the left and right in the lower part of a base part, and the 2nd guided part 18 is formed over the left and right in the lower part of a cover. According to the structure, since the operation of fitting the cover to the base portion can be performed using the guide portions 8 and 16 and the guided portions 10 and 18 formed in two places, the guide portion 8 and Since it is possible to guide to a position where it can be stably fitted from the structure of only the guided part 10, workability can be improved.

  As shown in FIG. 11, the lower part of the base and the lower part of the cover are provided with a screwing mechanism for fixing the lower part of the base and the lower part of the cover at the fitting position of the base part and the cover.

  As shown in FIG. 11 or FIG. 13, the screw fastening mechanism in this embodiment includes a screw hole portion 20 formed in the inclined portion 15 at the lower portion of the base portion, a screw hole portion 19 formed in the inclined side 17 at the lower portion of the cover, and the screw The screw 50 is inserted into the holes 19 and 20. A screw hole 20 is formed in the inclined portion 15 at the lower portion of the base portion and a screw hole portion 19 is formed in the inclined side 17 at the lower portion of the cover, so that the screw 50 inserted into the screw hole portions 19 and 20 from the front direction of the cover. Can be prevented from being visually recognized, and an electrical device storage box having an excellent aesthetic appearance can be provided.

13 shows an enlarged view of the lower left part of FIG. 11, FIG. 14 shows a perspective explanatory view of FIG. 13, and FIGS. 15 and 16 show other embodiments.
In the present embodiment, as shown in FIG. 13, the second guided portion is composed of a lower horizontal portion 21 and an inclined side 17 formed by bending the lower horizontal portion 21. As shown in FIG. 14, an opening hole 23 facing the screw hole part 19 formed in the inclined part 15 is formed, and a tool such as a screwdriver is inserted from the opening hole part 23 so that screwing can be performed. The present invention is not limited to the embodiment. For example, as shown in FIG. 15, the end of the inclined side 17 formed by bending the lower horizontal portion 21 is further perpendicular to the floor surface (with respect to the base portion). It is also possible to form a horizontal side 24 bent in parallel and to form a screw hole 19 in the horizontal side 24. In this structure, the tool can be inserted from the front when the tool cannot be inserted from the lower horizontal plane 21 direction. Further, instead of forming the opening hole portion 23, as shown in FIG. 16, it is possible to adopt a structure in which the end portion of the lower horizontal portion 21 is bent into a convex shape to form a groove portion. In this structure, the tool can be inserted from the direction of the lower horizontal plane 21 without providing the opening hole 23 as shown in FIG. 15 and 16, the second guide portion 16 and the second guided portion 18 are formed, so that the cover 5 can be stably moved to the fitting position.

DESCRIPTION OF SYMBOLS 1 Electric equipment storage box 2 Panel cooling device 3 Base part 4 Cooling device main body 5 Cover 6 Heat absorption side overhanging space part 7 Inclined part 8 First guide part 9 Inclined side 10 First guided part 11 Attachment side 12 Vertical side 13 Horizontal side 15 Inclined portion 16 Second guide portion 17 Inclined side 18 Second guided portion 19 Screw hole portion 20 Screw hole portion 21 Lower horizontal portion 23 Open hole portion 24 Horizontal side 50 Screw 100 Peltier module 200 Cooling Device mounting part

Claims (4)

A base portion to which the cooling device main body is attached, and a cover that detachably covers the cooling device main body supported by the base portion;
Forming a first guide part having an inclined part fitted to the cover on the upper part of the base part;
On the upper part of the cover, a first guided part having an inclined side for sliding the cover to the fitting position along the inclined part of the first guide part is formed,
A board cooling apparatus, comprising: a screwing mechanism for fixing the lower part of the base part and the lower part of the cover at the fitting position at the lower part of the base part and the lower part of the cover. Forming a second guide portion having an inclined portion fitted to the cover at a lower portion of the base portion;
The second guided portion having an inclined side for sliding the cover to a fitting position along the inclined portion of the second guide portion at the lower portion of the cover. Panel cooling device. The board according to claim 2, wherein the screwing mechanism includes a screw hole portion formed in a lower inclined portion of the base portion and a lower inclined side of the cover, and a screw inserted into the screw hole portion. Cooling device. The second guided portion comprises a lower horizontal side of the U-shaped cover and an inclined side formed by bending the lower end of the U-shaped cover,
The panel cooling device according to claim 3, wherein an opening hole portion facing the screw hole portion formed in the inclined side is formed in the lower horizontal side.