JP4499583B2 - Duct mounting structure - Google Patents

Description

  The present invention relates to a duct mounting structure for mounting, for example, an end portion of a duct for exhausting air from a portable integrated air conditioner to a mounting port provided on a wall.

  In general, a portable integrated air conditioner or the like is configured such that an end of a duct for exhausting air to the outside is attached to an attachment port (opening) provided on a wall. A member with a net for preventing insects and the like from entering the duct from the outside is attached to the attachment port. The member with the net is fitted into the attachment port from the outdoor side, and is screwed into the attachment port with a tool or locked with a locking claw.

Patent Document 1 is disclosed as a technique for fixing an air blower of an intake / exhaust system to a ceiling.
JP 2000-104984 A

  However, the method of screwing a member with a net using a tool is time-consuming to attach and detach the member with a net, so when attaching a duct such as a portable integrated air conditioner that is frequently attached and detached. Is inconvenient. On the other hand, the method of attaching a member with a net just by locking the locking claw does not require a tool, but when the locking claw comes off due to distortion etc. when force is applied to the duct inside the room In some cases, the member with the net attached to the outdoor side may fall.

  An object of this invention is to provide the duct attachment structure which can be easily attached without using a tool and can prevent the fall of the member to the outdoor side.

In order to achieve the above object, a duct mounting structure according to the present invention includes a duct holder fitted from the outdoor side to a mounting port (opening) for mounting an end of the duct to a wall that partitions the interior and the exterior, and a duct. It is provided with a cylindrical duct connector that is installed and fitted into the duct holder from the indoor side. Furthermore, the duct connector, provided with a connector latching pawl for engaging the duct holder, the duct holder is obtained by forming a locking hole to lock the connector locking pawl of the duct connector, the duct holder, that A holder locking claw that protrudes from the circumferential direction to the outer peripheral side and locks to the mounting port is provided with a position shifted from the locking hole in the circumferential direction, and the holder locking claw passes through the central hole of the duct holder. Displaceable inward and outward in a direction perpendicular to the duct, and by fitting the duct connector into the duct holder, the inward displacement of the holder holder claw of the duct holder is regulated by the outer peripheral surface of the duct connector It is.

According to this configuration, after the holder locking claw of the duct holder fitted into the mounting port is locked to the mounting port, the inward displacement of the holder locking claw is caused by the outer peripheral surface of the duct connector fitted into the duct holder. Can be regulated. Thereby, even when a force is applied to the duct, it is possible to prevent the holder locking claw from coming off and to prevent the duct holder attached to the outdoor side from dropping.

The duct holder can be used to hold accessories attached near the mounting opening, and as an accessory, covers the center hole of the duct holder to prevent insects from entering the duct from the outside For example, it is possible to exemplify a rain guard that prevents the intrusion of rainwater into a net or a mounting opening. Furthermore, a plurality of rain guards that prevent rainwater from entering the mounting opening are provided, and the duct holder is formed into a rectangular shape that can be arranged horizontally and vertically. It can also be possible to keep the rain guard.

The duct connector may be just fitted into the mounting opening or locked to the mounting opening. However, if the duct connector is directly locked to the duct holder , the duct connector is prevented from coming off from the duct holder. Can be prevented. Thereby, the inward displacement of the holder latching claw of a duct holder can be controlled reliably.

As means for locking the duct connector to the duct holder, the duct connector is provided with a connector locking claw for locking to the duct holder, and the duct holder is provided with a locking hole for locking the connector locking claw of the duct connector. adopting the structure, Runode be formed by shifting the position of the locking hole in the holder locking claw in the circumferential direction, it is not necessary to arranged a holder locking claw and the locking hole of the duct holder wall-thickness direction, the duct The width of the holder in the wall thickness direction can be reduced.

  The mounting opening may be provided with an opening directly in the wall, but if the mounting opening is formed in a mounting panel that is attached to the window of the wall, the duct can be added to the existing window without changing the wall. An attachment port can be provided. The mounting panel attached to such a window is often relatively thin and easily deformed, and can provide a preferable aspect of the present invention that attempts to prevent the duct holder from dropping from the mounting opening.

  As long as the duct has an exhaust function, it may be provided in any device such as a ventilator. However, the duct provided in the portable integrated air conditioner is a duct to the attachment port. This is suitable for adopting the present invention.

According to the present invention, since the duct holder is mounted by locking the holder locking claw at the mounting port, a tool such as a screwdriver is not necessary for the mounting. Further, since the inward displacement of the holder locking claw of the duct holder is restricted by the outer peripheral surface of the duct connector, it is possible to prevent the holder locking claw from coming off. Thereby, a duct holder and a duct can be easily attached without using a tool, and the fall of the member to the outdoor can be prevented.

  The best mode for carrying out a duct mounting structure according to the present invention will be described below with reference to the drawings. First, an integrated air conditioner provided with a duct 7 whose end is attached to the attachment port 32 by the duct attachment structure according to the present invention will be described.

  In the integrated air conditioner, as shown in FIGS. 1 and 2, the cabinet 1 includes a compressor 2, a condenser 3, an evaporator 4, and a throttle mechanism (not shown), thereby forming a refrigeration cycle. The The air conditioner performs a cooling operation for generating cold air to cool the room. Therefore, the air conditioner includes a blower fan 5 for the evaporator 4, an exhaust fan 6 for the condenser 3, an exhaust duct 7, and a pump 8 for treating drain water generated by the cooling operation. Yes.

  The cabinet 1 has a structure surrounded by a front panel 10, a pair of left and right side plates 11, and a back plate 12, as shown in FIGS. The cabinet 1 is partitioned into an upper cooling chamber 13 and a lower exhaust heat chamber 14. The cooling chamber 13 and the exhaust heat chamber 14 are partitioned by a partition plate 15, and the upper and lower spaces are thermally insulated.

  The cooling chamber 13 accommodates the evaporator 4 and the blower fan 5, and the exhaust heat chamber 14 accommodates the compressor 2, the condenser 3, the exhaust fan 6, and the pump 8. In the cooling chamber 13, the evaporator 4 is disposed on the front side, and the blower fan 5 including a sirocco fan is disposed on the back side. In the heat exhaust chamber 14, the condenser 3 is disposed on the front side, and the exhaust fan 6 including a sirocco fan is disposed on the back side. Between the condenser 3 and the exhaust fan 6, the compressor 2 and the pump 8 are arrange | positioned at right and left, respectively. The condenser 3 is located below the evaporator 4, and the evaporator 4 and the condenser 3 are lined up and down.

  The front side of the cabinet 1 is opened, and this opening is covered with the front panel 10. The evaporator 4 and the condenser 3 face the opening, and a gap 16 is formed between the front panel 10 and the evaporator 4 and the condenser 3. A filter 17 is detachably attached to the gap 16.

  A front suction port 20 and an air outlet 21 are formed in the front panel 10. Further, a side suction port 22 is formed between the front panel 10 and the side plate 11. The front suction port 20 is located in the center of the front panel 10 and is arranged in the vertical direction. The front suction port 20 and the side suction port 22 communicate with the gap 16. The blower outlet 21 is located in the upper part of the front panel 10, and is opened toward the diagonally upward direction from the horizontal direction. The air outlet 21 is provided with a louver 23, and the louver 23 is swung by a motor. The blower outlet 21 communicates with the cooling chamber 13, and a ventilation path is formed from the front suction port 20 and the side suction port 22 through the evaporator 4 to the blower outlet 21. Thereby, the suction from the front surface of the cabinet 1 and the forward blowing can be realized.

  The exhaust heat chamber 14 projects to the back side of the cooling chamber 13, and an exhaust port 24 is formed on the upper surface of the exhaust heat chamber 14. One end of a bellows-like duct 7 is attached to the exhaust port 24. The other end of the duct 7 is attached to the opening of the wall 25, and the exhaust heat chamber 14 communicates with the outside via the duct 7. Therefore, in the exhaust heat chamber 14, a ventilation path is formed from the front suction port 20 and the side suction port 22 through the condenser 3 to the exhaust port 24. This ventilation path communicates with the duct 7 and communicates with the outside.

  One end of the duct 7 is rotatable and detachable with respect to the exhaust port 24. That is, the fan guard 27 is rotatably fitted in the exhaust port 24 formed in the casing 26 of the exhaust fan 6. A duct connector 28 is provided at one end of the duct 7. The duct connector 28 is detachably attached to the fan guard 27, but the duct connector 28 is attached so as not to rotate with respect to the fan guard 27. As the duct 7 and the fan guard 27 rotate integrally, the duct 7 and the cabinet 1 rotate relatively.

  The other end of the duct 7 is detachably attached to the opening of the wall 25. That is, the mounting panel 31 for mounting the duct 7 is fixed to the window frame using the window 30 in the opening. The window 30 may be either a raising / lowering window or a sliding window, and the length of the mounting panel 31 can be varied according to the size of the window 30.

  A duct holder 33 is fitted into the attachment port 32 of the attachment panel 31, and a duct connector 34 provided at the other end of the duct 7 is detachably attached to the duct holder 33. By attaching the duct connector 34 to the duct holder 33, the duct holder 33 is attached so as not to be detached from the attachment panel 31. A rain guard 35 is attached to the outdoor side of the duct holder 33 so that rain does not enter. Therefore, by removing the duct connector 34 from the duct holder 33, the duct 7 can be removed from the window 30, and the duct holder 33 can also be detached from the mounting panel 31. Here, when the duct 7 is removed, the attachment port 32 of the attachment panel 31 remains open, so that a cover for closing the attachment port 32 is provided on the attachment panel 31. In FIG. 1, reference numeral 36 denotes a ventilation hole to which a ventilation fan can be attached.

  A wheel 40 is attached to the bottom surface of the cabinet 1. Therefore, this air conditioner can be moved and can be moved indoors with the duct 7 being extendable. Further, by removing the duct 7, the air conditioner can be carried into another room and can be used in any place.

  By the way, in the evaporator 4, when performing heat exchange of indoor air, the water | moisture content in air will condense and drain water will generate | occur | produce. A drain pan 41 that receives drain water is provided below the evaporator 4, and a drip pan 42 is provided below the drain pan 41. The drain pan 41 is accommodated in the dropping tray 42, and the dropping tray 42 is attached to the cabinet 1. The drain water dripped onto the drain pan 41 flows down to the dropping tray 42 and further flows from the dropping tray 42 to the condenser 3. The drain water evaporates while cooling the condenser 3 when passing through the condenser 3. A drain tray 43 is provided below the condenser 3, and drain water that has flowed through the condenser 3 accumulates in the drain tray 43. The drain tray 43 is placed on the bottom of the heat exhaust chamber 14, and the drain tray 43 is formed with a drain hole 44 and plugged. When the stopper is removed, drain water is discharged.

  And in order to process the drain water collected in the drain pan 43, the drain water is again led to the condenser 3 by the pump 8 and evaporated. The pump 8 is installed in a drain tray 43, a drain hose 45 is connected to the pump 8, and a drain hose 44 is connected to the dropping tray 42. The pump 8 sucks the drain water and sends it to the dropping tray 42. The drain water flows down from the dropping tray 42 and is evaporated by the heat of the condenser 3. Thus, by draining the drain water, waste water treatment can be performed inside without draining outside. In the middle of the drain hose 45, a cock for switching the flow path is provided, and a drain pipe 46 is connected. By turning the cock, the flow path is switched to a flow path that circulates toward the dropping dish 42 and a flow path that is drained toward the drain pipe 46.

  The air conditioner includes a control device that drives and controls the compressor 2, the blower fan 5, the exhaust fan 6, and the pump 8. A control device including a microcomputer is built in the cabinet 1 and executes various operations such as a cooling operation, a dehumidifying operation, and a ventilation operation in response to an operation signal from a remote controller (not shown) or an operation switch provided in the cabinet. In addition, the front panel 10 is provided with a display 50 made of LEDs or the like, and the control device controls the lighting of the display 50 according to various operations, or as a warning when the drain water is full. Control such as lighting or blinking of the display 50 is performed.

  In the cooling operation, room air is sucked from the front suction port and the side suction port by driving the blower fan 5, and passes through the evaporator 4 from the gap 16 of the front panel 10. At this time, the sucked air is cooled by the evaporator 4 and becomes cold air. The cold air is blown out into the room from the air outlet 21.

  On the other hand, by driving the exhaust fan 6, room air is sucked from the front suction port 20 and the side suction port 22 and passes through the condenser 3 from the gap 16 of the front panel 10. At this time, the sucked air is warmed by the condenser 3 and becomes warm air. The warm air passes through the duct 7 from the exhaust port 24 and is discharged outside the room.

  The drain water generated from the evaporator 4 by the cooling operation flows down and accumulates in the drain tray 43. When the drain water is accumulated up to a predetermined water level, the pump 8 is operated to pump up the drain water in the drain receiving tray 43 and guide it to the dropping tray 42. The drain water drawn up flows down along the surface of the condenser 3 and evaporates. The drain water that has not evaporated is collected in the drain tray 43, pumped up again, and circulated until it evaporates.

  In the dehumidifying operation, the compressor 2, the blower fan 5, the exhaust fan 6, and the pump 8 are driven and controlled as in the cooling operation. However, the drain water accumulated in the drain tray 43 is not circulated, but the drain water is discharged from the drain pump 46 by the operation of the cock. In this case, the duct 7 is removed. The air dehumidified through the exhaust heat chamber 14 is exhausted from the exhaust port 24 into the room. Therefore, dehumidification can be performed without changing the indoor temperature.

  In the ventilation operation, the compressor 2, the blower fan 5, and the pump 8 are stopped, and only the exhaust fan 6 is driven. Indoor air sucked from the front of the cabinet 1 is discharged from the heat exhaust chamber 14 through the duct 7 to the outside. At this time, outdoor air enters from the ventilation hole 36 of the wall 25, and ventilation of the room is performed.

  Next, the duct attachment structure 60 for attaching the end of the duct 7 to the attachment port 32 will be described in more detail. Here, the case where the mounting panel 31 arranged in the horizontal direction is attached to the raising and lowering window that opens and closes up and down will be described, but the mounting panel 31 arranged in the vertical direction is attached to the sliding window that opens and closes left and right. May be.

  As shown in FIG. 5 to FIG. 7, the duct mounting structure 60 includes a duct holder 33 that is fitted into the mounting port 32 formed in the mounting panel 31 from the outdoor side, and a duct mounting structure 60 that is mounted on the end of the duct 7. A duct connector 34 that is fitted into the holder 33 from the indoor side, and the duct holder 33 prevents insects from entering the attachment hole 32 and an insect repellent net 61 that covers the central hole 33a of the duct holder 33. The rain guard 35 is held.

  As shown in FIG. 8A, the duct holder 33 is provided with a locking claw 62 that can be displaced inward and outward so as to protrude to the outer peripheral side. The duct holder 33 is attached to the attachment port 32 by being locked to the portion. Further, as shown in FIG. 8B, the duct holder 33 is formed with a locking hole 63 that is shifted in the circumferential direction with respect to the locking claw 62, and the locking hole 63 is provided in the duct connector 34. The duct connector 34 is attached to the duct holder 33 by latching the latching claws 64.

  The duct connector 34 fitted in the duct holder 33 restricts the inward displacement of the locking claw 62 of the duct holder 33 by its outer peripheral surface 73. As a result, the duct holder 33 is prevented from being detached from the attachment port 32, and the duct holder 33 is prevented from dropping out of the room.

  As shown in FIG. 9, the mounting panel 31 is a horizontally long rectangular plate having a substantially U-shaped cross section having flanges 65 projecting indoors at the upper and lower edges, and is fixed to the window 30 of the wall 25 that partitions the interior and the exterior. A rectangular opening is formed near the end of the mounting panel 31 (on the left side in FIG. 9), and this opening serves as a mounting port 32 for mounting the duct 7.

  As shown in FIG. 10, the duct holder 33 has a rectangular frame shape having a central hole 33 a, and protrudes indoors so as to surround the central hole 33 a and has a rectangular tube shape that is fitted into the attachment port 32. An inner fitting portion 66 and a rectangular tube-like fitting portion 67 that protrudes outward and fits and holds the rain guard 35 are formed. The central hole 33a of the duct holder 33 is divided into two parts by a reinforcing material 68, and is covered with a net 61 fixed from the outdoor side.

  The inner fitting portion 66 is set to be slightly smaller than the attachment port 32 so that the inner fitting portion 66 can be fitted into the attachment port 32, and a total of four locking claws 62 are provided near the corner of the inner fitting portion 66 on the upper and lower surfaces. Is provided. After the inner fitting portion 66 is fitted into the attachment port 32 from the outdoor side, the locking claw 62 is inserted into the attachment port 32 by pushing the duct holder 33 until the fitting portion 67 contacts the peripheral edge of the attachment port 32. The duct holder 33 is attached to the attachment port 32 by being locked to the peripheral edge.

  Furthermore, a total of four locking holes 63 are formed on the upper and lower surfaces of the inner fitting portion 66 in the vicinity of each locking claw 62 and in the center in the left-right direction. The engaging claw 64 of the fitted duct connector 34 is engaged.

  The fitting portion 67 is set to be larger than the attachment port 32, is located on the outdoor side of the attachment panel 31, and holds the base end portions of the two rain guards 35 arranged side by side on the inside. To do. A total of six locking holes 69 are formed on the upper and lower surfaces and the left and right surfaces of the fitting portion 67 so as to lock the locking claws 70 provided at the base end portion of the rain guard 35.

  The rain guard 35 is formed by connecting the upper ends of two side plates 35a arranged in parallel with a top plate 35b and the lower end with a bottom plate 35c, and spanning three rain guard plates 35d on the two side plates 35a. The locking claw 70 provided at the base end portion of the rain shield 35 is set in the vicinity of the end portions of the two side plates 35a, the top plate 35b, and the bottom plate 35c in the circumferential direction, and corresponds to the locking claw 70. The position of the locking hole 69 of the fitting portion 67 is also set.

  The two side plates 35a, the top plate 35b, and the bottom plate 35c are formed with a notch 71 at a position symmetrical to the locking claw 70 in the circumferential direction, and the notch 71 faces the locking claw 70 of the adjacent rain guard 35. Thus, the protruding portion of the locking claw 70 is accommodated. In addition, when arrange | positioning the attachment panel 31 vertically, the rain guard 35 can be arranged in parallel up and down.

  As shown in FIGS. 11 to 13, the duct connector 34 has a cylindrical shape having a cylindrical base end portion 72 and a rectangular tube-shaped tip end portion 73, and is a surface parallel to the central axis thereof, and has a lower side. It is divided into a divided body 34a and an upper divided body 34b. The base end portion 72 is substantially the same size as the duct 7, and the duct connector 34 is connected to the duct 7 by sandwiching the end portion of the duct 7 with the base end portion 72 when the divided bodies 34 a and 34 b are assembled. The

  The distal end portion 73 is set slightly smaller than the inner fitting portion 66 so as to be fitted into the inner fitting portion 66 of the duct holder 33, and a total of four locking claws 64 are provided on the upper and lower surfaces thereof. By engaging and pushing the distal end portion 73 into the inner fitting portion 66 from the indoor side until the circumferentially continuous flange 74 comes into contact with the end face of the inner fitting portion 66 of the duct holder 33, the locking claw 64 is inserted into the duct holder. It is locked in the 33 locking holes 63. Thereby, the end of the duct 7 is attached to the attachment port 32 via the duct holder 33 and the duct connector 34.

  In the divided portion of the lower divided body 34a, an outer piece 75 that is continuous in the length direction, an inner piece 76 that is located closer to the central axis than the outer piece 75 and is continuous in the length direction of the divided portion, Is formed, and a groove 77 is formed between the outer piece 75 and the inner piece 76. Two locking claws 78 projecting inward are formed on the inner piece 76, and when the divided bodies 34a and 34b are assembled, the locking claws 78 are locked to the upper divided body 34b.

  The dividing portion of the upper divided body 34b includes an outer piece 79 continuous in the length direction, and a U-shaped locking piece 80 positioned corresponding to the locking claw 78 on the center axis side of the outer piece 79. , Is formed. When the divided bodies 34a and 34b are assembled, the outer piece 79 of the upper divided body 34b is fitted into the groove 77 of the lower divided body 34a, and the locking claws 78 of the lower divided body 34a are fitted to the upper divided body. By being locked by the locking piece 80 of 34b, the divided bodies 34a and 34b are integrated to form the duct connector 34.

In addition, this invention is not limited to said embodiment, A change can be suitably added within the scope of the present invention. For example, the duct 7 is not limited to that provided in the integrated air conditioner, and may be provided in another device. The attachment port 32 is not limited to one in which an opening is formed in the attachment panel 31, and may be one in which an opening is formed directly in the wall 25 .

Schematic (side view) of integrated air conditioner Schematic diagram (plan view) of integrated air conditioner Perspective view of integrated air conditioner (viewed from the front) Perspective view of integrated air conditioner (view from the back) Exploded perspective view showing duct mounting structure Sectional view showing duct mounting structure (before assembly) Sectional view showing the duct mounting structure (after assembly) It is principal part sectional drawing which shows the latching state of a duct holder and a duct connector, (a) shows the cross section which passes along the latching claw of a duct holder, (b) shows the cross section which passes through the latching claw of a duct connector. It is a figure which shows a mounting panel, (a) is a front view (figure seen from the room side), (b) AA sectional drawing It is a figure which shows a duct holder, (a) is a top view, (b) is a front view (figure seen from the indoor side), (c) is BB sectional drawing, (d) is CC sectional drawing, (E) DD sectional view It is a figure which shows a duct connector, (a) is a top view, (b) is a front view (The figure seen from the indoor side in the disassembled state) (A) is EE sectional drawing of FIG. 11, (b) is FF sectional drawing of FIG. 11A is a sectional view taken along line GG in FIG. 11, FIG. 11B is a sectional view taken along line HH (main part), FIG. 11C is a sectional view taken along line II (main part), and FIG. (Main part)

Explanation of symbols

25 Wall 30 Window 31 Mounting panel 32 Mounting port 33 Duct holder 34 Duct connector 35 Rain guard 60 Duct mounting structure 61 Net 62 Locking claw (duct holder)
63 Locking hole 64 Locking claw (duct connector)

Claims (5)

A duct holder fitted from the outside to the mounting opening for attaching the end of the duct to the wall partitioning the inside and outside of the room, and a cylindrical duct connected to the duct and fitted from the room side to the duct holder With connectors,
The duct connector is provided with a connector locking claw for locking to the duct holder, and the duct holder is formed with a locking hole for locking the connector locking claw of the duct connector,
The duct holder is provided with a holder locking claw that protrudes from the circumferential portion of the duct holder to the outer peripheral side and that is locked to the mounting port with a position shifted in the circumferential direction with respect to the locking hole. The pawl is provided so as to be displaceable inward and outward in a direction perpendicular to the axis passing through the central hole of the duct holder,
A duct mounting structure in which the inward displacement of the holder locking claw of the duct holder is regulated by an outer peripheral surface of the duct connector by fitting the duct connector into the duct holder. The duct mounting structure according to claim 1, wherein the duct holder holds a net that covers a central hole of the duct holder and / or a rain shield that prevents rainwater from entering the mounting port . A plurality of rain guards are provided to prevent rainwater from entering the mounting opening, and the duct holder is a rectangle that can be arranged horizontally and vertically, and is arranged side by side or vertically depending on the arrangement direction of the duct holder. The duct mounting structure according to claim 1, wherein the installed rain guard can be held. The mounting opening, the duct installation structure according to any one of claims 1 to 3, characterized in that formed on the mounting panel to be mounted on the window of the wall. The duct mounting structure according to any one of claims 1 to 4 , wherein the duct is provided in a portable integrated air conditioner.

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