JP2008111617A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner capable of preventing dew condensation on a driving device for opening and closing a damper of a premix damper device, and improving service performance of the driving device. <P>SOLUTION: In this air conditioner having the premix damper device 14 constituted by disposing a filter 5, a heat exchanger 9 composed of a first heat exchanger 7 and a second heat exchanger 8 disposed through a clearance portion 6, and an air distribution fan 10 in an air passage connecting a suction opening 1 and a supply opening 2, and provided with a damper guide 12 having an opening and disposed in the clearance portion 6, and the damper 13 for opening and closing the opening of the damper guide 12, the driving device 15 for driving the damper 13 is disposed between the first heat exchanger 7 and the second heat exchanger 8, and a protective cover 16 is disposed to cover the driving device 15. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an air conditioner including a premix damper device, and more particularly to a structure that prevents condensation on a drive device that opens and closes a damper and improves serviceability of the drive device.

  In the conventional air conditioner, it is assumed that the air temperature is raised without lowering the cooling capacity during cooling operation, the cooling is prevented, and the comfort is improved. For example, as shown in FIGS. A first suction port 1a and a blower port 2 formed above and below the front surface part, a second suction port 1b formed on the upper surface part, and the first and second suction ports 1a and 1b, respectively. And a heat exchanger 9 and a blower fan 10 including a first heat exchanger 7 and a second heat exchanger 8 arranged in a substantially C shape disposed in an air passage connecting the air outlet 2 and the air outlet 2. A damper guide 12 having an opening 11 disposed between the upper ends of the first heat exchanger 7 and the second heat exchanger 8 and a damper guide 12 for opening and closing the opening 11 is rotatable. What was comprised from the attached damper 13 was disclosed (for example, Patent Document 1 reference.).

  However, for example, part of the air sucked from the second suction port 1b circulates between the upper ends 6 of the first heat exchanger 7 and the second heat exchanger 8, and the rest of the air Since the heat exchanger 9 is circulated, a temperature difference is generated in the air between the upper ends 6, and condensation may occur in the drive device including the drive motor 15 a for driving the damper 13. was there.

Therefore, since there are insufficient considerations for preventing condensation on the drive device and for improving the serviceability of the drive device, it is required to take these measures. It was.
JP 2000-39168 A

  Therefore, the present invention has been made to solve the above-described problems, and its purpose is to prevent condensation on the drive device that opens and closes the damper of the premix damper device and to improve serviceability of the drive device. An object of the present invention is to provide an air conditioner.

  In order to achieve the above-described object, the present invention has the following features.

A heat exchanger composed of a filter supported by a filter guide, a first heat exchanger and a second heat exchanger arranged with a separation portion in an air passage connecting the suction port and the air outlet; In an air conditioner provided with a blower fan, provided with a damper guide having an opening in the spacing portion, and provided with a premix damper device provided with a damper for opening and closing the opening of the damper guide,
A drive device for driving the damper is provided between the first heat exchanger and the second heat exchanger, and a protective cover for covering the drive device is provided.

  Further, the drive device and the protective cover are provided in a damper holder that is attached to the damper guide and holds the damper.

  Further, the drive device includes a drive motor, a power transmission unit, and a limit switch for detecting the position of the damper, and a drainage unit is provided in the damper holder.

  The damper holder is provided with an attachment portion for attaching the limit switch, and the attachment portion is provided at an upper portion of the damper guide.

  Further, the damper holder is characterized in that a support rib facing the lower surface of the terminal of the limit switch is formed.

  In addition, a movable dust removing device is supported upstream of the filter by a guide rail extending vertically along the filter, and a guide portion is provided on the protective cover corresponding to the guide rail. It is said.

  The upper part of the damper holder that is adjacent to the protective cover and holds the damper is covered with a part of a guide rail that extends along the filter.

  According to the present invention, a drive device that drives the damper is provided between the first heat exchanger and the second heat exchanger, and a protective cover that covers the drive device is provided. It is possible to provide an air conditioner that prevents condensation on the drive device that opens and closes the damper of the mix damper device and improves the serviceability of the drive device.

  Next, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is an explanatory view of an air conditioner according to the present invention, (A) is an external perspective view, (B) is a perspective view showing a state in which a front panel is removed, and FIG. 2 is a schematic view of the air conditioner according to the present invention. FIG. 3 is an explanatory view of an air conditioner according to the present invention, FIG. 3 (A) is a sectional view including a protective cover of the premix damper device, and FIG. 3 (B) is a sectional view excluding the protective cover. 4 is a perspective view of a main part of the air conditioner according to the present invention, FIG. 5 is an explanatory view of the premix damper device, (A) is a perspective view showing a state in which the opening is closed, and (B) is a view showing the opening. FIG. 6 is an exploded perspective view of the premix damper device, FIG. 7 is an exploded perspective view of the main part of the premix damper device, and FIG. 8 is an explanatory view of the damper. FIG. 9A is a perspective view, FIG. 9B is a view taken along an arrow A in FIG. 9A, and FIG. In illustration, (A) is a perspective view, (B) is A arrow view of the A portion shown in (A).

  As shown in FIGS. 1A and 1B, FIG. 2, FIG. 3A and FIG. A filter 5 that is detachably supported by a filter guide 4, a first heat exchanger 7 and a second heat exchanger 7 that are separately arranged in the front and rear directions, in an air passage 3 that connects the mouth 1 and a blower outlet 2 provided in the lower part. The heat exchanger 9 including the heat exchanger 8 and the blower fan 10 are provided.

  A movable dust removing device 23 for cleaning the filter 5 is provided on the front side of the filter 5, and the upper end of the first heat exchanger 7 and the second heat exchanger 8 The upper end portion is provided with a separation portion 6 that is separated from each other in the front-rear direction.

  The separation portion 6 is provided with a premix damper device 14 for opening or closing the separation portion 6 as an air passage, and the suction port directed to the location by the premix damper device 14. So that a part of the intake air from 1 circulates without passing through the heat exchanger 9 or a part of the intake air passes through the heat exchanger 9 by being shielded at the location. It is the structure led to.

  The dust removing device 23 is automatically supported by a guide rail 22 extending vertically along the filter 5 so as to move in the vertical direction, so that dust accumulated on the surface of the filter 5 is automatically cleaned. And a pair of cleaning brushes pivotally supported in the interior, a pair of recovery brushes for collecting dust captured by the cleaning brushes, and a lock member for restricting the rotation of the cleaning brush, Is stored.

  As shown in FIGS. 4 to 6, the premix damper device 14 includes a damper guide 12 having a plurality of openings 11, a one-side holder 17 a and another side so as to open and close the openings 11 of the damper guide 12. A damper 17 that is slidably held by a damper holder 17 including a holder 17b and a center holder 17c, and when the damper 13 is driven by a driving device 15 to open the opening 11, Part of the air sucked from the suction port 1 is directed to the air outlet 2 without being subjected to heat exchange. In the air passage 3, the air passes through the heat exchanger 9 and is mixed with the heat-exchanged air. Thus, the air is blown out from the air outlet 2 to the air-conditioned room.

  As a result, it is possible to increase the blowing temperature without reducing the air blowing capacity during the cooling operation, to prevent overcooling for the user in the air-conditioned room, and to improve the comfort, and for the air to be blown out By reducing the relative humidity, the comfort can be further improved.

  In the premix damper device 14, the state shown in FIG. 5A is a state in which the opening 11 is closed by the damper 13, so that air sucked from the suction port 1 does not pass through the separation portion 6. It has become.

  When the damper 13 moves forward as shown in FIG. 5B by the driving device 15, the opening 11 formed in the damper guide 12 is opened, and one of the air sucked from the suction port 1 is opened. The part passes through the plurality of openings 11 as indicated by arrows a and b shown in FIG. 5B and flows into the air passage 3 in the air conditioner body.

  The air flowing into the air passage 3 is mixed with the air that has passed through the heat exchanger 9 and heat-exchanged, and then blown out from the outlet 2 to the air-conditioned room by the blower fan 10 as described above. It is like that.

  Next, the detailed configuration and operation of the premix damper device 14 will be described.

  As shown in FIG. 5 (A), FIG. 5 (B), and FIG. 6, the damper guide 12 includes a plurality of openings 11, one side guide portion 12a on one side, and the other side on the other side. Each guide portion 12b is erected. In addition, a stopper 12e is formed in the center portion, extending forward and bending the tip portion upward.

  The one-side guide portion 12a is formed with a rail 12g extending in the front-rear direction, a front fixing portion 12c having a screw hole is provided at the front portion, and a rear fixing portion 12d having a screw hole is provided at the rear portion. The drive device 15 is attached to the same side guide portion 12a.

  Similarly, a rail 12f extending in the front-rear direction is formed on the other side guide portion 12b. A front fixing portion 12c having a screw hole is provided at a front portion thereof, and a rear fixing portion 12d having a screw hole is provided at a rear portion thereof. Is provided.

  The damper 13 is formed in a rectangular shape, and is provided on one side with a one-side placement portion 13a that is placed and guided on a rail 12g formed on the one-side guide portion 12a. The other side mounting part 13b mounted and guided on the rail 12h formed in the side guide part 12b is provided, and the one side mounting part 13a is formed with a rack gear extending in the front-rear direction. Further, as shown in FIGS. 8A and 8B, a stepped recess 13c is formed at the center of the damper 13, and a stepped recess 13d is formed on both sides thereof.

  As shown in FIGS. 5B and 6B, the recess 13c and the recess 13d are positioned by flanges around the periphery of the opening 11 formed so as to be adjacent to each other, as shown in FIGS. Guided along the slide.

  The one side holder 17a constituting the damper holder 17 has a front part fixing hole 12e and a rear part fixing part 12d of the one side guide part 12a with screws passed through a front part mounting hole 17e and a rear part mounting hole 17f provided in the front and rear thereof. By screwing to the damper guide 12, the damper 13 is fixed to the damper guide 12 while holding one side of the damper 13 slidably.

  Similarly, the other holder 17b constituting the damper holder 17 is screwed into the front fixing portion 12c and the rear fixing portion 12d of the one side guide portion 12b with screws through attachment holes provided at the front and rear thereof. Thus, the other side portion of the damper 13 is slidably held and fixed to the damper guide 12.

  The center holder 17c constituting the damper holder 17 is formed with a bent portion 17g corresponding to the stopper 12e at the tip thereof, and the damper guide 12 by the engaging portion of the rear edge portion corresponding to the recess 13c of the damper 13. Thus, the central portion of the damper 13 is slidably held so as not to float upward.

  The drive device 15 includes a drive motor 15a in which a power transmission portion 15b made of a pinion gear as shown in FIG. 7 is mounted on a rotating shaft corresponding to the rack gear, and a motor mounting portion provided on the one side holder 17a. It can be attached to 17d by screwing.

  The power transmission unit 15b formed of a pinion gear as shown in FIG. 7 is linked to a power output unit 15b ′ that is moved by a gear (not shown) provided in the output unit, and the power transmitted to the power output unit 15b ′ is illustrated. It is output to the power output portion 15b ′ near the rail 12f formed on the other side guide portion 12b via the power transmission shaft, and the damper 13 is also slid from the other side guide portion 12b side. I am doing so.

  Further, the power transmission portion 15b is provided at the upper portion of the heat exchanger 9, and the drainage portion as shown in FIG. 6 is provided at the damper holder 17 constituting the lower portion of the drive motor drive motor 15a and the power transmission portion 15b. 18 is provided, so that the dew condensation on the pinion gear can be discharged from the drainage portion 18, thereby preventing the occurrence of mold at the location.

  The drive device 15 includes a key top 19a and a limit switch 19, and protects the key top 19a and the limit switch 19, the drive motor 15a, and the power transmission unit 15b. A cover 16 is provided at the top.

  As shown in FIG. 7, the limit switch 19 is attached to a mounting portion 20 protruding from the one-side damper holder 17a, and the mounting portion 20 is provided above the damper guide 12 with a predetermined interval. As a result, the limit switch 19 is not cooled by the low-temperature heat exchanger 9 between the limit switch 19 and the heat exchanger 9 disposed further below the damper guide 12. It becomes the structure which does not produce dew condensation by having the space | interval of.

  Further, a support rib 21 is provided on the one-side damper holder 17a so as to face the lower surface of the terminal of the limit switch 19, so that the lower surface of the terminal 19b of the limit switch 19 shown in FIG. Even if there is dew condensation, it is configured not to cause an electrical short circuit.

  Since the protective cover 16 is provided in the upper part of the driving device 15, a part of the air sucked from the suction port 1 passes through the heat exchanger 9 without directly hitting the driving device 15. Will be led to.

  Further, the upper portion of the damper holder 17 adjacent to the protective cover 16 shown in FIGS. 5A and 5B is configured to be covered with a part of the guide rail 22 shown in FIG. Thus, the upper part of the driving device 15 and the rear upper part A of the driving device 15 by the driving motor 15a and the like can be covered in a substantially sealed state by a part of the protective cover 16 and the guide rail 22. Become.

  Therefore, a part of the air sucked from the suction port 1 does not directly hit the driving device 15 provided in the separating portion 6, and there is no possibility that a temperature difference is generated in the air at the location.

  Further, even if the driving device 15 including the driving motor 15 a for driving the damper 13 generates heat, a part of the air sucked from the suction port 1 is not heated by the driving device 15. Therefore, there is no temperature difference in the air at the location, and therefore there is no risk of condensation on the driving device 15.

  As shown in FIG. 7, the protective cover 16 is provided with a guide portion 16 a that guides the dust cover 23 corresponding to the dust removing device 23 that is movably supported by the guide rail 22. The dust removing device 23 is smoothly guided by the guide rail 22 and the guide portion 16a.

  The driving device 15 is attached to the one-side holder 17a, and the same-side holder 17a uses a screw that has passed through the front attachment hole 17e and the rear attachment hole 17d as the front fixing portion 12c and the rear fixing portion. Since it is fixed to the damper guide 12 by being screwed to 12d, the one side holder 17a including the drive device 15 can be detachably fixed to the damper guide 12. Serviceability of the drive device 15 is improved.

  As shown in the top view of FIG. 9B, the recess 13c formed in a step shape at the center of the damper 13 has a notch 13e having a D dimension at the front edge. The front edge of the recess 13c extends forward in the center of the damper guide 12 and abuts against a stopper 12e whose upper end is bent upward, so that sliding forward is restricted. The damper 13 can be moved forward by the amount of the notch 13e, so that a larger amount of movement can be secured and the opening 11 can be sufficiently opened.

It is explanatory drawing of the air conditioner by this invention, (A) is an external appearance perspective view, (B) is a perspective view which shows the state which removed the front panel. It is a principal part perspective view of the air conditioner by this invention. It is explanatory drawing of the air conditioner by this invention, (A) is sectional drawing containing the protective cover of the premix damper apparatus, (B) is sectional drawing except the protective cover. It is a principal part perspective view of the air conditioner by this invention. It is explanatory drawing of a premix damper apparatus, (A) is a perspective view which shows the state which closed the opening, (B) is a perspective view which shows the state which opened the opening. It is a disassembled perspective view of a premix damper apparatus. It is a principal part disassembled perspective view of a premix damper apparatus. It is explanatory drawing of a damper, (A) is a perspective view, (B) is A arrow directional view of the A section shown by (A). It is explanatory drawing of a damper, (A) is a perspective view, (B) is A arrow directional view of the A section shown by (A). It is sectional drawing of the air conditioner by a prior art example. It is a principal part disassembled perspective view of the air conditioner by a prior art example. It is principal part explanatory drawing of the air conditioner by a prior art example, (A) is an exploded perspective view, (B) is an expansion exploded perspective view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Intake port 2 Outlet 3 Air passage 4 Filter guide 5 Filter 6 Separation part 7 First heat exchanger 8 Second heat exchanger 9 Heat exchanger 10 Blower fan 11 Opening 12 Damper guide 12a One side guide part 12b Others Side guide part 12c Front part fixing part 12d Rear part fixing part 12e Stopper 12f, 12g Rail 13 Damper 13a One side mounting part 13b Other side mounting part 13c, 13d Concave part 13e Notch 14 Premix damper apparatus 15 Drive apparatus 15a Drive motor 15b Power transmission part 15b 'Power output part 16 Protective cover 16a Guide part 17 Damper holder 17a One side holder 17b Other side holder 17c Central holder 17d Motor attachment part 17e Front part attachment hole 17f Rear part attachment hole 17g Bending part 18 Drain part 19 Limit Switch 19a Key top 19b Terminal 20 mounting portion 21 support rib 22 guide rail 23 dust removing device

Claims (7)

A heat exchanger composed of a filter supported by a filter guide, a first heat exchanger and a second heat exchanger arranged with a separation portion in an air passage connecting the suction port and the air outlet; In an air conditioner provided with a blower fan, provided with a damper guide having an opening in the spacing portion, and provided with a premix damper device provided with a damper for opening and closing the opening of the damper guide,
An air conditioner comprising: a drive device that drives the damper between the first heat exchanger and the second heat exchanger; and a protective cover that covers the drive device.   The air conditioner according to claim 1, wherein the driving device and the protective cover are provided on a damper holder that is attached to the damper guide and holds the damper.   3. The air conditioner according to claim 1, wherein the drive device includes a drive motor, a power transmission unit, and a limit switch that detects a position of the damper, and a drainage unit is provided in the damper holder. Machine.   The air according to any one of claims 1 to 3, wherein an attachment portion for attaching the limit switch is provided on the damper holder, and the attachment portion is provided on an upper portion of the damper guide. Harmony machine.   The air conditioner according to claim 4, wherein a support rib is formed on the damper holder so as to face a lower surface of the terminal of the limit switch.   A movable dust removing device is supported upstream of the filter by a guide rail extending vertically along the filter, and a guide portion is provided on the protective cover corresponding to the guide rail. The air conditioner according to claim 1.   The upper part of the damper holder which adjoins the said protective cover and hold | maintains the said damper is covered with a part of guide rail extended along the said filter, The Claim 1 thru | or 6 characterized by the above-mentioned. Air conditioner.

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