JP5040497B2 - Blower - Google Patents

Description

  The present invention relates to a blower that supplies air into a room or exhausts air from the room.

  Conventionally, as a ventilator that ventilates air by supplying outside air into the room or a ventilator that ventilates indoor air by ventilating it outdoors, it is installed between ducts that connect the air supply and exhaust ports to blow air A blower has been proposed (see, for example, Patent Document 1).

  Such a blower device includes a blower fan driven by a fan motor, a casing to which the blower fan is attached, a duct joint to which a duct is connected, and the like, and is installed on the back of the ceiling of a building.

JP 2007-032434 A

  However, since the air blower connected in the middle of the duct is installed behind the ceiling of the building, it is difficult to perform inspection work with a conventional air blower, and a board that controls an electric device such as a blower fan that requires maintenance There was a problem that it was not possible to easily replace the battery.

  The present invention has been made to solve such a problem, and an object of the present invention is to provide a blower that can easily perform an inspection work.

In order to solve the above-described problems, the blower of the present invention has a suction port and a blow-out port to which a duct member through which air passes is connected, and is detachable from the upper case fixed to the installation location and the upper case The lower housing that is attached to the upper housing and the board that is connected to the upper housing or the electrical equipment that is attached to the lower housing are housed, are detachably attached to the lower surface of the lower housing, and are detached from the lower housing. And a substrate storage unit that is attached to and detached from the upper housing with the lower housing attached to and detached from the upper housing. A side plate having a shape that fits into an opening of the housing is provided, and the side plate of the lower housing includes a positioning member for the upper housing .

  In the blower device of the present invention, the substrate housing part in which the substrate is housed is removed from the upper housing together with the lower housing by attaching and detaching the lower housing, and the substrate is placed at a place where the work is different from the place where the blower device is installed. Maintenance inspection can be performed.

  On the other hand, the upper housing is fixed at the installation location, and it is not necessary to remove the duct member when the lower housing is attached or detached, thereby improving workability.

  According to the blower of the present invention, since the board can be easily attached and detached from the upper housing fixed at the installation place, the workability of the maintenance inspection of the parts requiring maintenance can be improved.

  Hereinafter, an embodiment of a blower of the present invention will be described with reference to the drawings.

<Configuration example of the blower of the present embodiment>
1, 2, and 3 are configuration diagrams illustrating an example of a blower according to the present embodiment, and FIGS. 1A and 2A are diagrams illustrating the use of the blower 1 </ b> A according to the present embodiment. FIG. 1B, FIG. 2B, and FIG. 3 are exploded perspective views showing the state of the blower 1A during inspection. Here, FIG. 1 is a perspective view of the air blower 1A viewed from one side, and FIG. 2 is a perspective view of the air blower 1A viewed from the other side.

  The blower 1A according to the present embodiment includes a blower fan unit 2 that sucks indoor air and exhausts it to the outside or sucks outdoor air and supplies it to the room, and ventilates houses and the like by mechanical ventilation. It is a ventilation device called an intermediate duct fan or the like.

  The blower 1A includes an upper casing 3 to which an inlet duct joint 10 that is an example of an inlet and an outlet duct joint 11 that is an example of an outlet are attached, and a lower casing that is detachably attached to the upper casing 3. By providing the body 4 and removing the lower housing 4 from the upper housing 3, the blower fan unit 2 and the like are inspected.

  In addition, the substrate box 5 attached to the lower housing 4 is provided, and the substrate 50 housed in the substrate box 5 is inspected by removing the substrate box 5 from the lower housing 4.

  The blower fan unit 2 is an example of an electric device, and includes a fan case 20, a fan motor (not shown), a fan that is rotationally driven by the fan motor, and the like, and is fixed to the upper housing 3 by screws or the like.

  The upper housing 3 includes a first side plate 30 to which the inlet duct joint 10 is attached, a second side plate 31 to which the outlet duct joint 11 is attached, a pair of third side plates 32 and 33, and a top plate 34. Is provided.

  One third side plate 32 has an opening 32 a having an open lower side, and the other third side plate 33 has an opening 33 a having an open lower side, and the third side plate 32 and the side plate 33 are opposed to each other. Side is configured. Thereby, the upper housing | casing 3 is comprised by the rectangular parallelepiped shape or cube shape which a part of bottom face and side surface opened.

  Further, the upper housing 3 includes a bottom plate mounting screw hole 35 on the opened bottom surface, and the lower housing 4 attached to the opening on the bottom surface is fixed to the upper housing 3 by screwing.

  The lower housing 4 includes a bottom plate 40 to which the substrate box 5 is attached and a pair of fourth side plates 41. The bottom plate 40 has a shape that closes the opened bottom surface of the upper housing 3, and the fourth side plate 41 has a shape that closes the openings 32 a and 33 a of the third side plates 32 and 33 of the upper housing 3.

  The lower housing 4 includes a bottom plate mounting screw 42 on the bottom plate 40. The bottom plate attachment screw 42 is an example of a fastening member. When the lower housing 4 is attached to the upper housing 3, the bottom plate attachment screw 42 is aligned with the bottom plate attachment screw hole 35, and the bottom plate attachment screw 42 is the bottom plate attachment screw hole. By being fastened to 35, the lower housing 4 is fixed to the upper housing 3 by screwing.

  Further, the lower housing 4 includes a positioning member 43 on the fourth side plate 41. When the lower housing 4 is attached to the upper housing 3, the fourth side plate 41 of the lower housing 4 and the upper housing 3 Misalignment of the third side plates 32 and 33 is prevented.

  The lower housing 4 is provided with a seal member 44 at the edge of the bottom plate 40 and the edge of the fourth side plate 41 that come into contact with the lower housing 4 when the lower housing 4 is attached to the upper housing 3. 3 and fixed with a bottom plate mounting screw 42, the airtightness of the joint portion is maintained by the seal member 44.

  The blower 1 </ b> A includes the mounting bracket 36 in the upper housing 3 and is installed in a suspended form, for example. Thereby, 1 A of air blowers can remove the lower housing | casing 4 in the state which fixed the upper housing | casing 3 to the building side.

  The board box 5 is an example of a board housing section, and includes a board mounting plate section 51 to which a board 50 on which a circuit for driving a fan motor (not shown) of the blower fan section 2 is formed, and a board cover section 52 that covers the board 50 are provided. Prepare.

  The board mounting plate portion 51 and the board cover portion 52 are attached to the board box 5 by the board mounting screws 54 fastened through the spacers 53 to the screw holes 45 formed in the bottom plate 40 of the lower housing 4. By removing the screw 54, as shown in FIG. 3, the substrate mounting plate portion 51 and the substrate cover portion 52 are removed, and the substrate 50 is exposed.

  FIG. 4 is a configuration diagram illustrating an example of the bottom plate mounting screw, FIG. 4A is a side sectional view of the bottom plate mounting screw and the bottom plate, and FIG. 4B is a perspective view of the bottom plate mounting screw and the bottom plate.

  The bottom plate mounting screw 42 is inserted into a hole 40a formed in the bottom plate 40 of the lower housing 4 so as to be rotatable. Further, the bottom plate mounting screw 42 is fitted so that a retaining ring 42a, which is an example of a fall prevention member, is not easily detached. The outer diameter of the retaining ring 42 a is larger than the diameter of the hole 40 a, and the bottom plate mounting screw 42 is configured to be rotatable with respect to the lower housing 4 and cannot be removed.

  As a result, the bottom plate mounting screw 42 can be turned with a fastening tool such as a screwdriver while attached to the lower housing 4, and when the bottom plate mounting screw 42 is loosened, the bottom plate mounting screw 42 is detached from the lower housing 4. It is configured not to fall.

  FIG. 5 is an operation explanatory view of the positioning member. In the positioning member 43, convex portions having a shape sandwiching the third side plates 32 and 33 of the upper housing 3 are integrally formed on both surfaces of the upper side of the fourth side plate 41, for example. The distal end portion of the positioning member 43 has a shape bent toward the outside, and has a function as a guide when the lower housing 4 is attached to the upper housing 3 as shown in FIG.

  When the lower casing 4 is attached to the upper casing 3, the third side plates 32 and 33 of the upper casing 3 enter between the positioning members 43 as shown in FIG. The positional deviation between the fourth side plate 41 and the third side plates 32 and 33 of the upper housing 3 is prevented.

  As a result, the positions of the third side plates 32 and 33 of the upper housing 3 and the fourth side plate 41 of the lower housing 4 are shifted so that a gap is formed at the joint portion, and the airtightness cannot be maintained. Is prevented.

  FIG. 6 is a configuration diagram illustrating an example of a dew condensation prevention structure of the blower according to the present embodiment. The blower 1 </ b> A includes a heat insulating material 6 on each surface of the upper housing 3 and the lower housing 4. The heat insulating material 6 is an example of a dew condensation prevention member, and is attached to each of the first to third side plates 30 to 33 and the top plate 34 of the upper housing 3. Here, the heat insulating material 6 attached to the third side plates 32 and 33 is cut out in accordance with the shapes of the openings 32a and 33a shown in FIGS. 1B and 2B. The heat insulating material 6 is attached to each of the bottom plate 40 and the fourth side plate 41 of the lower housing 4.

  As a result, the entire blower device 1 </ b> A excluding the inlet duct joint 10, the outlet duct joint 11, and the board box 5 is covered with the heat insulating material 6. In the blower 1 </ b> A, condensation may occur in the housing due to a temperature difference between the sucked air and the air at the installation location. On the other hand, by covering the outer surfaces of the upper housing 3 and the lower housing 4 with the heat insulating material 6, condensation is prevented.

  FIG. 7 is a main part configuration diagram illustrating an example of a dew condensation prevention structure of the blower according to the present embodiment. In the blower 1 </ b> A, the lower housing 4 is fixed to the upper housing 3 by a bottom mounting screw 42, and the bottom mounting screw 42 is attached to the bottom plate 40 of the lower housing 4 for fastening work of the bottom mounting screw 42. Must be exposed.

  On the other hand, in the blower 1 </ b> A, the upper housing 3 and the lower housing 4 are covered with a heat insulating material 6 to prevent condensation, and the heat insulating material 6 is also attached to the bottom plate 40. Here, if an opening is provided in the heat insulating material 6 in accordance with the position of the bottom plate mounting screw 42 and the bottom plate mounting screw 42 is exposed, the fastening operation can be performed. However, condensation occurs on the bottom plate mounting screw 42. The water may sag.

  Therefore, in accordance with the position of the bottom plate mounting screw 42, a notch 61 is formed in the heat insulating material 6 so that one side of the quadrangle is connected, and an opening / closing part 62 is provided. When the opening / closing part 62 is closed, as shown in FIG. 7A, the bottom plate mounting screw 42 is covered with the heat insulating material 6, and the occurrence of condensation on the bottom plate mounting screw 42 is prevented.

  When the opening / closing part 62 is opened, the bottom plate mounting screw 42 is exposed as shown in FIG. Here, since the opening / closing part 62 is integral with the heat insulating material 6, there is no risk of loss. Further, since the heat insulating material 6 is a material that can be easily folded and restored, it does not hinder the fastening operation when the opening / closing portion 62 is opened, and can be easily pressed by hand after the fastening operation. Can be closed. Thereby, the fall of the water droplet by condensation can be prevented with a simple structure.

<Example of inspection operation of the blower according to the present embodiment>
FIG. 8 is an operation explanatory diagram of the blower according to the present embodiment. Next, an inspection operation in the blower 1A according to the present embodiment will be described with reference to each drawing.

  The blower 1 </ b> A is installed in a form in which the upper housing 3 is suspended by attaching a mounting bracket 36 to an anchor bolt 102 fixed to a beam 101 installed on a ceiling 100 of a building (not shown). In addition, a duct 103 which is a duct member through which air sucked from the room passes, for example, is connected to the inlet duct joint 10, and a duct 104 through which air exhausted outdoors is connected to the outlet duct joint 11. The

  Further, the inspection panel 106 is opened on the ceiling panel 105 in accordance with the installation position of the blower 1A, the inspection panel 107 that can be opened and closed is attached to the inspection opening 106, and the inspection panel 107 is opened. Can be inspected.

  That is, when the inspection panel 107 is opened, the bottom surface side of the blower 1 </ b> A is exposed to the inspection port 106. Then, if the bottom plate mounting screw 42 is loosened and removed from the bottom plate mounting screw hole 35 shown in FIGS. 1B and 2B, the lower housing 4 can be removed from the upper housing 3, and FIG. The lower housing 4 can be removed through the inspection port 106 as shown in FIG.

  Here, the ducts 103 and 104 are connected to the upper housing 3 side, and it is not necessary to remove the ducts 103 and 104 by attaching and detaching the lower housing 4.

  When the lower housing 4 is removed from the upper housing 3, the air blower 1 </ b> A opens at the bottom surface facing the inspection port 106, and lowers both sides by the openings 32 a and 33 a of the third side plates 32 and 33. The side opens.

  Thereby, inspection of the ventilation fan part 2 attached to the inside of the upper housing | casing 3 is possible. In particular, since the lower side of both side surfaces of the upper housing 3 is open, the work performed by putting a hand into the upper housing 3 can be performed safely and easily. Further, visual observation up to the back side (top plate side) of the upper housing 3 can be reliably performed. Furthermore, when removing the blower fan unit 2 from the upper housing 3, a fastening tool such as a driver can be easily inserted into the upper housing 3, thereby improving workability.

  Further, in the blower 1 </ b> A, when the lower housing 4 is removed from the upper housing 3, the substrate box 5 is also detached from the upper housing 3 and the substrate box 5 is opened, whereby the substrate 50 can be inspected.

  In the above example, the operation example in which the lower housing 4 is removed from the upper housing 3 and the inspection is performed has been described. However, the substrate 50 can be inspected without removing the lower housing 4. That is, since the board box 5 is attached to the lower surface of the lower housing 4, the board box 5 is exposed together with the lower housing 4 when the inspection panel 107 is opened.

  Thus, as shown in FIG. 3, by removing the board mounting screw 54, the board mounting plate portion 51 and the substrate cover portion 52 are removed, and the lower box 4 is not detached from the upper housing 3, and the board 50 Detachable.

<Modification of the blower of the present embodiment>
In the air blower 1A described above, the example in which the inspection port 106 is installed directly below has been described. However, the inspection port 106 may not be installed directly below the air blowing device 1A due to restrictions on the structure of the building. Even in such a case, when the lower casing 4 is removed from the upper casing 3, the lower sides of the upper casing 3 are opened on the lower side, so that the inside of the upper casing 3 can be visually inspected from the side. Is possible.

  Moreover, although the air blower 1A was demonstrated in the example provided with the ventilation fan part 2 as an electric equipment, the fan for the air supply which supplies air indoors, the fan for exhaust which exhausts indoor air, and a heat exchange element And a heat exchange type ventilator that exchanges heat between outside air and room air to supply air.

  The electric device may be an electric component other than the fan, and may be, for example, an electric dust collector that collects dust or the like, or a chamber box provided with an ultraviolet lamp or the like.

  The present invention is applied to equipment used by being installed in the middle of a duct through which air passes by ventilation.

It is a block diagram which shows an example of the air blower of this Embodiment. It is a block diagram which shows an example of the air blower of this Embodiment. It is a block diagram which shows an example of the air blower of this Embodiment. It is a block diagram which shows an example of a baseplate attachment screw. It is operation | movement explanatory drawing of a positioning member. It is a block diagram which shows an example of the dew condensation prevention structure of the air blower of this Embodiment. It is a principal part block diagram which shows an example of the dew condensation prevention structure of the air blower of this Embodiment. It is operation | movement explanatory drawing of the air blower of this Embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1A ... Blower, 10 ... Suction duct duct joint, 11 ... Outlet duct joint, 2 ... Blower fan part, 3 ... Upper housing | casing, 32, 33 ... 3rd Side plate, 32a, 33a ... opening, 4 ... lower housing, 40 ... bottom plate, 41 ... fourth side plate, 42 ... bottom plate mounting screw, 43 ... positioning member, 5 ... Substrate box, 50 ... Substrate

Claims (2)

An upper housing that has a suction port and a blow-out port to which a duct member through which air passes is connected and is fixed to an installation place;
A lower housing detachably attached to the upper housing;
A substrate connected to an electrical device attached to the upper housing or the lower housing is accommodated, is detachably attached to the lower surface of the lower housing, is attached to and detached from the lower housing , and the lower housing in removable with respect to the upper housing body, and a substrate housing portion is detached from the upper housing,
The upper housing has an opening formed in a part of a side surface, and the lower housing includes a side plate having a shape that fits into the opening of the upper housing, The side plate includes a positioning member for the upper casing . The blower according to claim 1 , wherein the lower housing includes a seal member at an edge of the bottom plate and an edge of the side plate that come into contact with the lower housing when attached to the upper housing .

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