JP2018190879A - Unit attachment structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attach a unit to a housing of a box for housing electric/electronic devices without providing a fixing hole for fitting a fixation screw at the housing.SOLUTION: A unit 1 attachment structure includes: a housing of a box for housing electric/electronic devices including an opening 21; a unit 1 which is attached so as to cover the opening 21; a presser plate 17 which is inserted into the opening 21; and a fixation screw 18 used for fastening the unit 1 and the presser plate 17 to the housing.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a unit mounting structure.

  As described in Patent Document 1, it is known to attach a unit to an opening of a housing of an electric / electronic equipment storage box. At this time, it is general that a housing is provided with a fixing hole around the opening, and the unit is fixed using a fixing screw and a nut fitted in the fixing hole.

JP 2003-152373 A

  By the way, in order to provide a fixing hole for fitting a fixing screw to the housing, it is necessary to process a plate material or the like, but it is desirable to save as much labor as possible in manufacturing.

  The inventor of the present case has arrived at the present invention while diligently examining this point. An object of the present invention is to enable a unit to be attached to a housing of an electric / electronic equipment storage box without providing a fixing hole for fitting a fixing screw in the housing.

  In order to solve the above problems, a housing of an electric / electronic equipment storage box having an opening, a unit attached to cover the opening, a pressing plate inserted into the opening, a unit and a pressing plate A unit mounting structure including a fixing screw used for tightening to a housing.

  Further, it is preferable that a plurality of pressing plates formed in a long shape are provided, and the pressing plate is arranged at the end of the opening.

  Moreover, it is preferable to set it as the structure provided with the long hole-shaped attachment hole in the unit and the pressing board.

  Moreover, it is preferable that the long hole-shaped attachment hole is non-linear.

  In addition, the mounting hole has a hole extending in the longitudinal direction of the pressing plate and a hole extending so as to be orthogonal to the longitudinal direction of the pressing plate. When the guide pin is disposed so as to be accommodated in the hole extending in the longitudinal direction of the pressing plate, it is preferable that the movement of the pressing plate to the opening side is restricted.

  Moreover, it is preferable that the pressing plate is arranged so as to straddle the two sides of the opening when being fastened and fixed.

  In the present invention, the unit can be attached to the casing of the electric / electronic equipment storage box without providing a fixing hole for fitting the fixing screw in the casing.

It is a perspective view of the housing | casing and unit of embodiment. It is a disassembled perspective view of the unit of embodiment. It is a disassembled perspective view of the unit of embodiment seen from the direction different from FIG. It is sectional drawing which showed the state which attached the unit to the housing | casing. It is a perspective view of a ceiling board and a unit before attaching a unit. It is a side view of a ceiling board and a unit before attaching a unit. It is the perspective view which showed the state which fitted the unit in the opening part. It is the side view which showed the state which fitted the unit in the opening part. It is sectional drawing which showed the state which fitted the unit in the opening part. It is the figure which looked at the state which fitted the unit in the opening part from the downward direction. It is the perspective view which showed the state which moved the press plate after fitting the unit in the opening part. It is the side view which showed the state which moved the pressing plate after fitting the unit in the opening part. It is sectional drawing which showed the state which moved the press plate after fitting the unit in the opening part. It is the figure which looked at the state which moved the press plate after fitting the unit in the opening part from the lower part. It is the perspective view which showed the state which fixed the unit to the opening part. It is the side view which showed the state which fixed the unit to the opening part. It is the perspective view which looked at the base part to which the pressing plate was connected from the base part side. It is the perspective view which looked at the base part to which the press plate was connected from the press plate side. It is the perspective view which showed the other attachment form of the pressing board.

  The form for implementing this invention is shown below. As can be understood from FIGS. 1 to 4, the mounting structure of the unit 1 according to the present embodiment includes a housing 2 of an electric / electronic equipment storage box having an opening 21, and an opening 21. Unit 1 attached so as to cover, holding plate 17 inserted into opening 21, and fixing screw 18 used to fasten unit 1 and holding plate 17 to housing 2. For this reason, the unit 1 can be attached to the housing 2 of the electric / electronic device storage box without providing a fixing hole for fitting the fixing screw 18 in the housing 2.

  The unit 1 can be a cooling device that cools the electrical equipment mounted in the housing 2, a ventilation fan unit that performs ventilation, or a hood member, but an example in which the unit 1 is a ventilation fan unit will be described below. To do. The housing 2 of the present embodiment is a cabinet installed outdoors. The ventilation fan unit is configured to be detachable from the opening 21 provided in the ceiling plate 22 of the housing 2. The ventilation fan unit attached to the housing 2 can force the housing 2 to enter and exit the air.

  The ventilation fan unit includes a base portion 13 to which the ventilation fan 12 is fixed. The base portion 13 of this embodiment is a member configured in a case shape, and is provided with a vent hole 14. In the example shown in FIG. 4, a filter 91 is attached to the vent hole 14 to suppress contamination in the housing 2. In the present embodiment, the vent holes 14 are provided so as to be located in four directions when viewed from the center of the base portion 13. More specifically, the vent holes 14 are provided along the four sides of the base portion 13 that has a substantially quadrangular shape in plan view. A hood 15 is attached to cover the vent hole 14. The hood 15 is configured to be detachable from the base portion 13. More specifically, the hood 15 is fixed to the base portion 13 using screws or the like. Moreover, the opening 16 to which the ventilation fan 12 is attached is provided in the bottom part of the base part 13 of this embodiment.

  As understood from FIGS. 5 and 6, a pressing plate 17 is provided on the back surface side of the base portion 13 of the present embodiment. The presser plates 17 of the present embodiment are formed in a long shape and are provided in four, and are arranged so that the four sides of the end portion of the opening 21 of the housing 2 can be clamped. In the present embodiment, the holding plate 17 is formed longer than the length from one corner of the opening 21 configured in a rectangular shape to the center. That is, the holding plate 17 longer than the half of one side of the opening 21 is arranged on the one side. In addition, each holding plate 17 is disposed along different sides constituting the opening 21. Further, the holding plate 17 is arranged so as not to be line-symmetric with respect to a center line (A-A shown in FIG. 10 or FIG. 14) passing through the opening 21. In the present embodiment, the presser plate 17 is disposed so that a gap is not generated in the corner portion of the opening 21 and the vicinity of the center portion farthest from the corner portion can also be clamped. The pressing plate 17 of the present embodiment is provided so as to have a substantially U-shaped cross section, and can be prevented from being deformed when the fixing screw 18 is tightened.

  By the way, when the base portion 13 is attached to the housing 2, the housing 16 is disposed so that the opening 16 of the base portion 13 and the opening 21 of the housing 2 face each other, and is located between the bottom of the base portion 13 and the pressing plate 17. The ceiling board 22 of the body 2 is fixed so as to be sandwiched from above and below. At this time, the packing 3 is interposed between the base portion 13 and the ceiling plate 22 to enhance waterproofness.

  As shown in FIG. 4, the base portion 13 of the present embodiment is provided with a contact piece 61 that can contact the ceiling plate 22. The contact piece 61 is provided by bending the end portion of the base portion 13, and is provided so as to be located in four directions when viewed from the center of the base portion 13. In the present embodiment, since the packing 3 is disposed in the space inside the contact piece 61, the contact piece 61 works to protect the outer peripheral portion of the packing 3 from outside air and the like. Further, when the pressing plate 17 is tightened to some extent to crush the packing 3 so that the ceiling plate 22 and the contact piece 61 are in contact with each other, it is possible to suppress deterioration of the outer peripheral portion of the packing 3. Further, if the pressing plate 17 is tightened to some extent, the ceiling plate 22 and the contact piece 61 are brought into contact with each other, so that the packing 3 is not crushed more than necessary. If the packing 3 continues to be crushed, there is a possibility that the amount of elastic deformation is reduced and the waterproofing cannot be performed accurately. However, by providing the contact piece 61, it is possible to suppress crushing the packing 3 excessively.

  By the way, in this embodiment, it is the structure which fastens the press plate 17 and fixes the unit 1 and the housing | casing 2. FIG. When the unit 1 is fixed, the holding plate 17 is first housed in the housing 2 as shown in FIGS. At this time, the fixing screw 18 and the guide pin 19 are located inside the opening 21 of the ceiling plate 22. Next, as shown in FIGS. 11 to 14, the pressing plate 17 is moved to a position where a part of the pressing plate 17 faces the side of the opening 21 of the housing 2. Thereafter, when the holding plate 17 is tightened using the fixing screw 18, the base portion 13 and the holding plate 17 firmly sandwich the ceiling plate 22 of the housing 2 as shown in FIGS. The unit 1 is fixed to the housing 2.

  Due to the structure of fixing in this way, there is no need to provide a fixing hole for inserting the fixing screw 18 of the base portion 13 around the periphery of the opening portion 21, and the work of processing the ceiling plate 22 can be reduced. Further, the packing 3 disposed between the base portion 13 and the ceiling plate 22 does not need to be processed with a screw passage hole. Note that when the ceiling plate 22 and the packing 3 are sandwiched between the back surface of the base portion 13 and the pressing plate 17, the fixing screw 18 is tightened. At this time, the guide pin 19 functions so that the pressing plate 17 does not rotate.

  In the present embodiment, the pressing plate 17 used for fixing the base portion 13 is provided in a long plate shape. The pressing plate 17 can be disposed so as to extend in the same direction as the longitudinal direction of the packing 3. With such a configuration, it is possible to apply a wide range of force to the packing 3 positioned between the presser plate 17 and the base portion 13 in a state where the base portion 13 is fixed, and the waterproof reliability is ensured. Can be improved. Note that the holding plate 17 of this embodiment is held in a state of being connected to the base portion 13 by a fixing screw 18 and a guide pin 19.

  In the present embodiment, the attachment plate 4 is provided in the holding plate 17. As shown in FIGS. 17 and 18, in the present embodiment, the attachment hole 4 is provided to be a non-linear elongated hole. A guide pin 19 is inserted into the mounting hole 4, and the guide pin 19 and the holding plate 17 are connected in a state in which they can move relative to each other. Note that the guide pin 19 of the present embodiment is fixed to the base portion 13. Since the guide pin 19 that restricts the movement range of the presser plate 17 by being fitted into the mounting hole 4 can be prevented from rotating when the presser plate 17 is tightened, the unit 1 is It becomes easy to fix properly. In the present embodiment, the mounting hole 4 of the guide pin 19 is formed in the holding plate 17, and the mounting hole 4 of the fixing screw 18 is formed in the base portion 13. Moreover, since the attachment hole 4 formed in the press plate 17 and the base portion 13 has the same shape and is formed side by side in the left-right direction, the press plate 17 is formed to move horizontally. Such a mounting hole 4 may be formed in either the base portion 13 or the holding plate 17.

  In the present embodiment, the attachment hole 4 is provided at the bottom of the base portion 13. In this embodiment, the attachment hole 4 is provided so as to be a non-linear elongated hole. A fixing screw 18 is inserted into the mounting hole 4, and the fixing screw 18 and the base portion 13 are connected so as to be relatively movable. Note that the fixing screw 18 of the present embodiment is fixed to the holding plate 17.

  The long mounting hole 4 is made non-linear, and when the unit 1 is fixed, the guide pin 19 and the fixing screw 18 are fitted in the hole 41 extending substantially parallel to the end of the adjacent opening 21. Accordingly, the pressing plate 17 is suppressed from moving toward the opening 21, and the unit 1 can be easily attached from the opening 21.

  Thus, by adopting a configuration in which both the unit 1 and the pressing plate 17 are provided with the elongated mounting holes 4, when the pressing plate 17 of the unit 1 is inserted into the opening 21 of the housing 2, When fixing 1 to the housing | casing 2, the pressing plate 17 can be moved appropriately. As shown in FIG. 18, a hole portion into which the guide pin 19 is inserted is formed in the unit 1 at a position corresponding to the non-linear mounting hole 4 of the pressing plate 17. On the other hand, a hole portion into which the fixing screw 18 is inserted is formed in the pressing plate 17 at a position corresponding to the non-linear mounting hole 4 formed in the unit 1.

  The mounting hole 4 provided in the base portion 13 has a shape corresponding to the mounting hole 4 provided in the pressing plate 17 and appropriately regulates the range in which the pressing plate 17 moves. In the present embodiment, the mounting hole 4 provided in the base portion 13 has the same shape as the mounting hole 4 provided in the pressing plate 17, and the pressing plate 17 is stored in a position facing the opening 21. The state in which a part of the holding plate 17 overlaps with a part of the ceiling board 22 can be selected.

  The mounting hole 4 of the present embodiment has a crank shape having a hole 41 extending in the longitudinal direction of the pressing plate 17 and a hole 42 extending so as to be orthogonal to the longitudinal direction of the pressing plate 17. Due to such a configuration, when the ventilation fan unit is attached to the opening 21 of the ceiling plate 22, the fixing screw 18 and the guide pin 19 are accommodated in the hole 41 extending in the longitudinal direction of the pressing plate 17. If it arrange | positions, it can suppress that the press plate 17 moves to the transversal direction by the inclination at the time of attachment.

  In the present embodiment, the single pressing plate 17 is disposed so as to straddle the two sides of the opening 21 when fastened and fixed. By doing in this way, a ventilation fan unit can be firmly fixed rather than pinching and fixing one side of the opening part 21. FIG. Further, if the presser plate 17 is arranged so as to face two sides of the opening 21, the presser plate 17 can be prevented from being held in an oblique state by being tightened by the fixing screw 18, and in a state parallel to the ceiling plate 22. The holding plate 17 can be fixed.

  The method of clamping the base portion 13 and the pressing plate 17 according to this embodiment is fixed with a plurality of fixing screws 18 as shown in FIG. In this case, two mounting holes 4 are formed in the base portion 13 and the pressing plate 17 is fixed with two fixing screws. By the way, the ceiling board 22 and the base part 13 may produce a level | step difference. In this case, if the two fixing screws 18 are separated too much, each fixing screw 18 cannot properly hold the pressing plate 17 during tightening, and the pressing plate 17 may move or be inclined. On the other hand, if a plurality of fixing screws 18 are arranged adjacent to each other as shown in FIG. 5, they can be fixed with the fixing screws 18 while preventing the holding plate 17 from moving and tilting. For this reason, in this embodiment, the two fixing screws 18 are disposed at adjacent positions.

  In the example shown in FIG. 5, the structure is provided with two fixing screws for one pressing plate 17 so that the unit 1 can be firmly fixed to the housing 2. As shown in FIG. 1, the number of fixing screws may be one. In the example shown in FIG. 19, the pressing plate 17 is arranged and fixed so as to correspond to each side of the opening 21 provided in a square shape on a one-to-one basis. In addition, the unit 1 can be attached to the housing 2 of the electric / electronic equipment storage box.

  As mentioned above, although it demonstrated centering on one embodiment, this invention is not limited to the said embodiment, It can be set as various aspects. For example, a configuration in which a guide pin is positioned between two fixing screws may be used.

  The unit may not be attached to the ceiling board. For example, it can be attached to the side plate.

1 Unit 2 Housing 4 Mounting Hole 17 Holding Plate 18 Fixing Screw 19 Guide Pin 21 Opening

Claims (6)

A housing of an electrical and electronic equipment storage box with an opening;
A unit attached to cover the opening;
A holding plate inserted into the opening;
A fixing screw used to tighten the unit and the holding plate to the housing;
Unit mounting structure with Equipped with a plurality of press plates formed in a long shape,
The unit mounting structure according to claim 1, wherein the pressing plate is disposed at an end of the opening.   The unit mounting structure according to claim 1, wherein the unit and the holding plate are provided with long hole-shaped mounting holes.   4. The unit mounting structure according to claim 3, wherein the elongated mounting hole is non-linear. With guide pins inserted into the unit and holding plate,
The mounting hole has a hole extending in the longitudinal direction of the holding plate;
Having a hole extending perpendicular to the longitudinal direction of the pressing plate,
When the guide pin is placed so as to fit in the hole extending in the longitudinal direction of the holding plate,
The unit mounting structure according to claim 2, wherein movement of the pressing plate toward the opening is restricted.   6. The unit mounting structure according to claim 2, wherein the pressing plate is disposed so as to straddle the two sides of the opening when tightened and fixed.

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