JP4923952B2 - Air conditioner - Google Patents

Description

  The present invention relates to an air conditioner such as a ventilator or a heater having a substrate that drives a blower that sucks and blows air.

  2. Description of the Related Art Conventionally, an air conditioner for a bathroom has been proposed that has a ventilation function for sucking air from a bathroom or the like and discharging it to the outside, and a function for sucking air from a bathroom or the like and blowing hot air or the like to perform heating or the like.

  In such an air conditioner for a bathroom, a board box containing a board for driving the fan or the like is attached to the inside of the main body case that covers the fan, and the board in the board box and the motor of the fan are connected by a wiring member. (For example, refer to Patent Document 1).

Japanese Patent Laying-Open No. 2004-53197 (FIG. 1)

  In the air conditioner for a bathroom, the interior of the main body case is connected to the bathroom via the grill of the front panel, and moisture enters the inside of the main body case. For this reason, the substrate is housed in a substrate box to provide a waterproof measure.

  However, the substrate box requires an opening for passing the wiring member, and in an air conditioner configured to accommodate the substrate box in the main body case, there is a risk that moisture or moisture may enter the substrate box.

  The present invention has been made to solve such problems, and an object of the present invention is to provide an air conditioner that can reliably waterproof a substrate.

In order to solve the above-described problems, an air conditioner according to the present invention opens an air blower that sucks and blows air, a main body case that covers the air blower, and a part of an inclined top plate that is formed on the top plate of the main body case. formed Te, and a wiring outlet for taking out a wiring member connected to the blowing means to the outside of the main body case, the housing space bottom and sides is blocked, together with the substrate for controlling the blowing means is accommodated, board An introduction part through which a wiring member connected to the board is formed is formed by opening a substrate storage box formed on the upper surface at a position facing a wiring outlet formed on the inclined top plate and a part of the top plate of the main body case. A board storage box storage section for storing the board storage box by exposing the upper part where the introduction section of the board storage box is formed to the outside of the main body case, and is taken out obliquely upward from the wiring outlet to the outside of the main body case. And body The wiring member that is introduced from the outside into the introduction portion from the outside and introduced into the substrate storage box through the introduction portion is arranged so as to form a convex shape upward between the wiring outlet and the introduction portion. and said that you are.

  In the air conditioner of the present invention, the substrate that controls the blower is stored in the substrate storage box, and the substrate storage box is stored in the main body case with the introduction portion through which the wiring member passes exposed outside the main body case.

  The wiring member connected to the blower is taken out of the main body case from the wiring outlet, introduced into the storage space from the introduction portion of the substrate storage box, and connected to the substrate. And since the introduction part of the substrate storage box is exposed to the outside of the main body case, the substrate storage box is stored in the main body case, and the main body is not directly connected to the inside of the main body case. The blower in the case and the board in the board storage box are connected by a wiring member.

  According to the air conditioner of the present invention, since the substrate storage box does not directly communicate with the inside of the main body case, moisture from the inside of the main body case can be prevented from entering the substrate storage box.

  Hereinafter, embodiments of an air conditioner of the present invention will be described with reference to the drawings.

<Configuration example of air conditioner of this embodiment>
FIG. 1 is an exploded perspective view showing an example of the air conditioner of the present embodiment, and FIG. 2 is a side sectional view showing an example of the air conditioner of the present embodiment.

  The air conditioner 1A according to the present embodiment includes a blower 10 and a main body case 2 that covers the blower 10 and forms an air passage. The air conditioner 1 </ b> A includes a substrate box 3 attached to the main body case 2, and the substrate 4 that controls the blower 10 is stored in the substrate box 3.

  The blower device 10 has a ventilation function of sucking indoor air such as a bathroom and exhausting it to the outside, and a circulation function of blowing warm air while circulating the indoor air. In this example, the ventilation device 10 circulates with the ventilation fan unit 12. A fan unit 13 is provided.

  The ventilation fan unit 12 includes a fan 20 formed of a multi-blade centrifugal impeller, a ventilation fan motor 20a that rotationally drives the fan 20, and a ventilation fan case 21 that forms an air passage.

  The ventilation fan unit 12 includes a fan inlet 21 a on the upper surface of the ventilation fan case 21 along the axial direction of the fan 20, and a fan outlet 21 b on one side along the tangential direction of the fan 20.

  As a result, when the fan 20 is rotationally driven, the ventilation fan unit 12 sucks air from the fan suction port 21a of the ventilation fan case 21, and blows air from the fan suction port 21a from the fan outlet 21b. The

  The circulation fan unit 3 includes a fan 30 constituted by a multi-blade centrifugal impeller, a circulation fan motor 30a that rotationally drives the fan 30, and a circulation fan case 31 that forms an air passage.

  In the circulation fan unit 13, a lower cover 34 is attached to the opened lower surface of the circulation fan case 31, a fan suction port 31 a is formed in the lower cover 34 along the axial direction of the fan 30, and the tangential direction of the fan 30 is formed. The fan blower outlet 31b is provided in one side part along. In addition, the circulation fan unit 13 is integrally formed with an air outlet air passage 35 connected to the fan air outlet 31b.

  The blower outlet air passage 35 forms an air passage that is sucked in from the fan inlet 31 a when the fan 30 is driven to rotate and blows out the air blown from the fan outlet 31 b in the tangential direction of the fan 30 downward. To do.

  The circulation fan unit 13 includes a heater 36 that heats the air in the air outlet 35 and an electric louver 37 that switches the air blowing direction in the air outlet 38, and the fan 30 is driven to rotate so that the fan intake port is rotated. Air sucked from 31 a is heated by the heater 36 and blown out in a predetermined direction by the electric louver 37.

  The air conditioner 1 </ b> A includes a suction port 5 in the circulation fan case 31 of the circulation fan unit 13. The suction port 5 is formed outside the circulation fan case 31 independently of the air path formed by the circulation fan case 31. The air conditioner 1 </ b> A includes a damper (not shown) in the suction port 5, and opens / closes the suction port 5, thereby switching whether air is taken in from the suction port 5.

  In the air conditioner 1 </ b> A, the front panel 6 is attached to the lower part of the circulation fan case 31. The front panel 6 is formed with a suction grill 60 facing the fan suction port 31 b of the circulation fan unit 3 and the suction port 4, and is attached to the inside of the suction grill 60 so that a filter (not shown) can be attached and detached.

  Further, the front panel 6 is formed with a blowout grill 61 from which the blowout port 38 of the circulation fan unit 3 is exposed.

  The main body case 2 has a substantially rectangular parallelepiped shape, includes a top plate 70 covering the upper surface and side plates 71 covering the four side surfaces, and is attached to the ventilation fan case 21 and the circulation fan case 31 with screws 90.

  When the main body case 2 is attached to the ventilation fan case 21 and the circulation fan case 31, the air conditioner 1 </ b> A is provided between the outer periphery of the ventilation fan case 21 and the circulation fan case 31 and the inner surface of the corner of the main body case 2. A space extending in the vertical direction is formed. As a result, a main suction air passage 50a communicating with the suction port 5 and the fan suction port 21a of the ventilation fan unit 2 is formed.

  The air conditioner 1 </ b> A includes an exhaust port 51 that communicates with the fan air outlet 21 b of the ventilation fan unit 12 in one side plate 71 of the main body case 2. Further, the sub suction port 52 is provided in the other side plate 71 of the main body case 2. Thus, in the air conditioner 1 </ b> A, a sub suction air passage 50 b that communicates with the fan suction port 21 a of the ventilation fan unit 12 is formed from the sub suction port 52.

  The air conditioner 1 </ b> A includes a board box mounting portion 72 on the upper surface of the main body case 2 surrounded by the ventilation fan unit 12 and the three side plates 71 of the main body case 2.

  The substrate box mounting portion 72 is an example of a substrate storage box storage portion, and is formed by opening the top plate 70 of the main body case 2 in a predetermined shape, and includes a substrate box mounting surface 73 constituting the substrate storage box mounting portion, and a substrate A screw hole 73 a formed in the box mounting surface 73 is provided.

  Further, the main body case 2 includes an inclined top plate 74 that is inclined downward from the top plate 70 toward the substrate box mounting portion 72 between the top plate 70 and the substrate box mounting portion 72. Are provided with a screw hole 74a and a wiring port 74b. The wiring port 74 b is an example of a wiring take-out portion, and penetrates the inclined top plate 74 to communicate the outside and the inside of the main body case 2.

  The substrate box 3 is an example of a substrate storage box. The substrate box 3 includes a bottom plate (not shown) to which the substrate 4 is attached and a side plate 80 that covers four side surfaces of the bottom plate. The bottom surface and side surfaces are closed, and an opening 81 is provided on the top surface. A storage space 82 is formed, and the substrate 4 is stored in the storage space 82.

  Further, the board box 3 is formed with a placement portion 83 formed by projecting the upper part of each side plate 80 constituting the four side surfaces from the periphery of the opening 81 to the side, and corresponds to the screw hole 73a on the main body case 2 side. A mounting hole 83a is formed in the mounting portion 83 at the position.

  Further, the substrate box 3 includes a draining plate 84 as a draining member standing from the mounting portion 83 over the entire width of the side facing the inclined top plate 74, and is formed on the inclined top plate 74. An attachment piece 85 is provided at a position corresponding to the screw hole 74a.

  Further, the board box 3 includes a wiring introduction part 86 in the opening 81. The wiring introduction part 86 is an example of an introduction part, and when the board box 3 is attached to the board box attachment part 72 of the main body case 2, an upper surface at a position facing the wiring port 74 b formed on the inclined end face 74 is opened. It is formed.

  Here, the substrate box 3 is made of a resin material, and the above-described components are integrally formed, and moisture does not enter the storage space 82 from the bottom surface and the side surface.

  Further, when the board box 3 is stored in the board box mounting portion 72 so that the outer shape of the board box 3 and the shape of the board box mounting portion 72 of the main body case 2 are substantially matched, the board box 3 is positioned.

  Then, the placement portion 83 of the substrate box 3 is placed on the substrate box placement surface 73 of the substrate box attachment portion 72, and the attachment hole 83 a of the substrate box 3 is aligned with the screw hole 73 a of the main body case 2. .

  Further, the attachment piece 85 of the board box 3 is placed on the inclined top plate 74 of the main body case 2 and aligned with the screw hole 74 a of the main body case 2.

  The substrate box 3 has an upper surface cover 87 attached to the opening 81. The upper surface cover 87 has a shape that covers the entire opening portion 81 of the substrate box 3, and includes an opening portion 87 a at a position facing the wiring introduction portion 86 of the substrate box 3. Further, the take-out port 87b through which the wiring taken out from the inside of the substrate box 3 passes is constituted by a rubber member or the like.

  The upper surface cover 87 has an attachment hole (not shown) formed at a position corresponding to one attachment hole 83 a formed in the mounting portion 83 of the substrate box 3, and screws 91 passed through the attachment hole are attached to the substrate box 3. The board box 3 is fixed to the main body case 2 together with the upper surface cover 87 by fastening to the screw holes 73a of the main body case 2 through the attachment holes 83a. The board box 3 is fixed to the main body case 2 by fastening screws (not shown) to the screw holes 74a of the main body case 2 through the attachment piece 85.

  The board box 3 includes a terminal block 88 on the upper cover 87. A plurality of connection terminals are attached to the terminal block 88, and wiring (not shown) taken out from the inside of the board box 3 through the take-out port 87 is connected. Further, wiring from an operation unit such as a remote control switch described later is connected.

  Further, in the board box 3, a terminal block cover 89 that covers the terminal block 88 is attached to the upper surface cover 87.

  The terminal block cover 89 has a mounting hole (not shown) formed at a position corresponding to the other mounting hole 83 a formed in the mounting portion 83 of the substrate box 3, and screws 92 passed through the mounting hole are connected to the upper surface cover 87. In addition, by fastening to the screw hole 73a of the main body case 2 through the mounting hole 83a of the substrate box 3, it is fixed to the main body case 2 together with the substrate box 3 and the upper surface cover 87.

  Further, the terminal block cover 89 has a mounting hole (not shown) formed at a position corresponding to the screw hole 70a formed in the top plate 70 of the main body case 2, and the screw 93 passed through the mounting hole is fastened to the screw hole 70a. Thus, the main body case 2 is fixed.

  3 and 4 are main part cross-sectional views showing details of the mounting structure of the board box. As shown in FIG. 4, the substrate box 3 has a sealing member 94 attached to the entire circumference of the mating surface between the substrate box mounting portion 72 of the main body case 2 and the mounting portion 83. 83 is mounted on the substrate box mounting surface 73 of the substrate box mounting portion 72.

  Thereby, in the substrate box 3, substantially the entire storage space 82 enters the main body case 2, and the opening 81 above the mounting portion 83 is exposed on the upper surface of the main body case 2. Then, by attaching the top cover 87 with the screws 91 as described above, the substrate box 3 is fixed to the main body case 2 together with the top cover 87.

  When the top cover 87 is attached to the board box 3, the wiring introduction part 86 is exposed from the opening 87 a of the top cover 87, and the inside and outside of the board box 3 communicate with each other through the wiring introduction part 86.

  The air conditioner 1A includes, as a wiring member 95 connected to the blower 10, wiring connected to each motor such as the ventilation fan motor 20a and the circulation fan motor 30a, wiring connected to the heater 36, and a sensor (not shown). The connected wiring is taken out of the main body case 2 through the wiring port 74b.

  Here, a rubber bush 96 through which the wiring member 95 passes is attached to the wiring port 74b, and moisture is prevented from leaking from the inside of the main body case 2 through the wiring port 74b.

  Then, the wiring member 95 taken out from the inside of the main body case 2 through the wiring port 74 b is introduced into the substrate box 3 through the wiring introducing portion 86 and connected to the substrate 4.

  In the above-described example, the substrate box 3 is configured such that the opening 81 above the placement portion 83 is exposed on the upper surface of the main body case 2, but depending on the height of the space in the main body case 2, etc. The upper part of the board box may be exposed from the upper surface of the main body case, and the wiring introduction part may be formed on the upper side surface exposed from the main body case of the board box.

  The air conditioner is a device having both a ventilation function and a heating function, but may be applied to a ventilation device having only a ventilation function.

<Example of installation of air conditioner according to this embodiment>
FIG. 5 is a configuration diagram of a bathroom showing an installation example of an air conditioner. The air conditioner 1 </ b> A is installed on the ceiling of the bathroom 100. The ceiling panel of the bathroom 100 is formed with an opening for receiving the main body case 2 of the air conditioner 1A described in FIG. 1 and the like, and the air conditioner 1A is suspended from the back of the ceiling so that the front panel 6 is exposed. Or, it is attached in a form fixed to a ceiling panel.

  In the air conditioner 1A attached to the ceiling of the bathroom 100, an exhaust duct joint 51a is attached to the exhaust port 51, and an exhaust duct 110 is connected to the exhaust duct joint 51a. The exhaust duct 110 is connected to an outdoor grill 110a attached to an outer wall 101 of a building (not shown), and is configured to be able to exhaust the air sucked from the bathroom 100 or the like by the air conditioner 1A to the outside through the exhaust duct 110.

  In the air conditioner 1A, the sub suction duct joint 52a is attached to the sub suction port 52, and the sub suction duct 111 is connected to the sub suction duct joint 52a. The sub-suction duct 111 is connected to a sub-suction grill 111 a installed in the washroom 102 and is configured to suck air from the washroom 102. The sub suction grill 111a may be provided in a toilet (not shown).

  The air conditioner 1 </ b> A executes, for example, a heating operation mode, a ventilation operation mode, a drying operation mode, and a cool air operation mode by the operation of the operation unit 9 installed in the washroom 102 adjacent to the bathroom 100.

<Operation example of the air conditioner of this embodiment>
Next, the operation of the air conditioner according to the present embodiment will be described with reference to the drawings.

  In the heating operation mode executed by the air conditioner 1A, the suction port 5 is closed by a damper (not shown), the circulation fan motor 30a of the circulation fan unit 13 is driven, and the heater 36 is energized.

  When the fan 30 is rotationally driven by the circulation fan motor 30 a, the air in the bathroom 100 is sucked from the suction grill 60 of the front panel 6 into the fan suction port 31 a of the circulation fan unit 13. When the heater 36 is energized, the air passing through the air outlet 35 is heated and hot air is blown out from the outlet grill 61 of the front panel 6. Thereby, in the heating operation mode, warm air is blown out while circulating the air in the bathroom 100, and the bathroom 100 is heated.

  In the ventilation operation mode executed in the air conditioner 1 </ b> A, the suction port 5 is opened with a damper (not shown), and the ventilation fan motor 20 a of the ventilation fan unit 12 is driven.

  When the fan 20 is rotationally driven by the ventilation fan motor 20a, the air in the bathroom 100 is sucked from the suction grill 60 of the front panel 6 through the main suction air passage 50a to the fan suction port 21a of the ventilation fan unit 12.

  In addition, air in the bathroom 102 and the like is sucked from the sub suction grille 111a through the sub suction duct 111 and from the sub suction port 52 through the sub suction air passage 50b to the fan suction port 21a of the ventilation fan unit 12.

  The air sucked into the ventilation fan unit 12 is blown out from the fan outlet 21b of the ventilation fan case 21, is discharged from the exhaust port 51, passes through the exhaust duct 110, and is exhausted from the outdoor grill 110a to the outside. Thereby, in ventilation operation mode, the air of bathroom 100 and other rooms is exhausted outdoors, and ventilation of bathroom 100 is performed.

  In the drying operation mode executed by the air conditioner 1 </ b> A, the circulation fan motor 30 a of the circulation fan unit 13 is driven and the heater 36 is energized. Further, the suction port 5 is opened by a damper (not shown), and the ventilation fan motor 20a of the ventilation fan unit 12 is driven.

  Thereby, in the dry operation mode, the steam and moisture in the bathroom 100 are exhausted while circulating the air in the bathroom 100 and blowing hot air into the bathroom 100, and the bathroom 100 and the laundry are dried.

  In the cool air operation mode executed by the air conditioner 1 </ b> A, the heater 36 is not energized and drives the circulation fan motor 30 a of the circulation fan unit 13. Further, the suction port 5 is opened by a damper (not shown), and the ventilation fan motor 20a of the ventilation fan unit 12 is driven.

  Thereby, in the cool wind operation mode, the steam and moisture in the bathroom 100 are exhausted while circulating the air in the bathroom 100 and blowing into the bathroom 100.

  In the air conditioner 1 </ b> A, the inside of the main body case 2 communicates with the bathroom 100 through the suction port 5. For this reason, the moisture of the bathroom 100 has entered the main body case 2.

  On the other hand, since the board | substrate 4 which controls the various motors etc. of the air blower 10 is weak to a water | moisture content, it is necessary to take a waterproof measure. Therefore, the substrate 4 is housed in the substrate box 3 and attached to the main body case 2.

  Further, the wiring member 95 connected to the blower device 10 is taken out through the wiring port 74b of the main body case 2 and the wiring member 95 taken out from the inside of the main body case 2 through the wiring port 74b is connected to the wiring introduction unit. It is introduced into the substrate box 3 through 86 and connected to the substrate 4.

  Thereby, the storage space 82 of the substrate box 2 does not directly communicate with the inside of the main body case 2, so that moisture from within the main body case 2 can be prevented from entering the substrate box 3.

  Since the wiring introduction part 86 communicates the storage space 82 and the outside on the upper surface of the substrate box 3, the heat generated in the element mounted on the substrate 4 is released to the outside through the wiring introduction part 86. It is possible to prevent heat from being accumulated in the substrate box 3.

  Further, the inside of the board box 3 communicates with the outside by the wiring introduction part 86, so that when the air conditioner 1A is used in winter, it is possible to prevent the air inside the board box 3 from being cooled and causing condensation. .

  Further, since the substrate box 3 has an integral structure, moisture does not enter from the portion housed in the main body case 2.

  Furthermore, even if moisture in the main body case 2 leaks from the wiring port 74b, the board box 3 has the draining plate 84 standing over the entire width of the side facing the inclined top plate 74 where the wiring port 74b is formed. Since it is provided in the provided form, moisture can be prevented from entering the wiring introduction part 86 beyond the draining plate 84.

  Further, the substrate box 3 has a seal member 94 attached to the entire circumference of the mating surface between the substrate box mounting portion 72 of the main body case 2 and the mounting portion 83 as shown in FIG. The moisture in the main body case 2 is prevented from leaking from the mating surface of the main body case 2.

  Thus, even if the board box 3 is stored in the main body case 2, moisture and moisture can be prevented from entering the board box 3, so that the board box 3 is stored in the main body case 2, A highly reliable air conditioner 1A that can be downsized in the height direction can be provided.

  The present invention is applied to an air conditioner such as a bathroom heating / ventilating / drying apparatus or a ventilating apparatus installed behind the ceiling of a bathroom or the like.

It is a disassembled perspective view which shows an example of the air conditioner of this Embodiment. It is a sectional side view which shows an example of the air conditioner of this Embodiment. It is principal part sectional drawing which shows the detail of the attachment structure of a board | substrate box. It is principal part sectional drawing which shows the detail of the attachment structure of a board | substrate box. It is a block diagram of the bathroom which shows the example of installation of an air conditioner.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1A ... Air conditioner, 10 ... Blower, 12 ... Ventilation fan unit, 13 ... Circulation fan unit, 2 ... Body case, 3 ... Substrate box, 4 ... Substrate, 72 ... Substrate box attachment part, 74b ... Wiring port, 86 ... Wiring introduction part, 95 ... Wiring member, 100 ... Bathroom

Claims (3)

A blowing means for sucking in and blowing out air;
A body case covering the blowing means;
A wiring outlet that is formed by opening a part of an inclined top plate formed on the top plate of the main body case, and takes out a wiring member connected to the blowing means to the outside of the main body case,
The receiving space bottom and sides is blocked, the with the substrate for controlling the blowing means is accommodated, before Symbol substrate and connected thereto said inlet portion where the wiring member passes is formed on the inclined top plate wiring A substrate storage box formed on the upper surface of the position facing the take-out port ;
A substrate storage box that is formed by opening a part of the top plate of the main body case and exposes the upper portion of the substrate storage box where the introduction portion is formed to the outside of the main body case to store the substrate storage box. With a storage section ,
The wiring member that is taken obliquely upward from the wiring outlet to the outside of the main body case, introduced from above into the introducing portion from the outside of the main body case, and introduced into the substrate storage box through the introducing portion, An air conditioner arranged so as to form a convex shape upward between the wiring outlet and the introduction portion . A substrate storage box mounting portion for attaching the substrate storage box stored in the substrate storage box storage portion to the main body case; and a seal member disposed on a mating surface of the substrate storage box and the main body case. The air conditioner according to claim 1. The air conditioner according to claim 1 or 2 , wherein the substrate storage box includes a draining member over the entire width of the side facing the wiring outlet formed on the inclined top plate of the main body case. .

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