JP2000199642A - Straightening mechanism for air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To straighten with a simple structure by providing an air passage in a diffusing air passage for diffusing conditioned air to an air outlet, and forming the passage at an inside to straighten the air toward a predetermined flowing direction. SOLUTION: A guide vane base 7 is mounted at a nozzle upper frame constituting member 8. A straightening box 10 is integrally molded with a position parallel to a main flow of diffused air to limit a pressure loss of the air provided at right and left ends of the base 7 to a minimum limit. An air passage from a crossflow fan 22 formed of the box 3 to an air outlet 19 constitutes an air outlet passage for passing the conditioned air to be thermally exchanged by a heat exchanger 23. Right and left wind direction vanes 21 are mounted at a predetermined interval at the base 7, coupled by a coupling member 24, and driven to swing in lateral directions by a motor or the like. The box 10 is provided near the air passage between right and left wind direction vanes 21 of an outermost part and the diffused passage, and a flow rate of the conditioned air is reduced according to a direction of the vanes 21 at this position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for preventing dew condensation at an air outlet of an air conditioner using a rectifying action in an air flow path of the air conditioner.

[0002]

2. Description of the Related Art Generally, as shown in FIG. 9, when air blown from an air conditioner is blown out from an air outlet, conditioned air is controlled by a vertical wind direction adjusting vane or a left and right wind direction adjusting vane in an air flow path leading to the air outlet. The effect causes pressure loss. In addition, when the rotation speed of the cross flow fan that plays the role of generating the conditioned air blowout decreases, the blown wind causes turbulence in the airflow and a decrease in the airflow. As a result, the blown air does not flow along the vertical wind direction adjusting vanes located ahead of the vane, and the blown air is isolated and dew condensation occurs. Conventionally, in order to reduce or prevent such a phenomenon, a jump stand 1 shown in a sectional view of FIG. 10 and a jammer plate 2 shown in a sectional view of FIG.

[0003]

In order to cope with the dew condensation phenomenon occurring at the air outlet of the conventional air conditioner, a jump stand 1 or a baffle plate 2 is mounted near the air outlet. The jump stand 1 changes the main flow direction of the blown air flowing to the casing of the unit box 3 that forms the back wall of the blown air path, thereby causing the blown wind to crawl on the vertical wind direction adjusting vane 4 and cooling by the blown wind. The air flow is reduced by reducing the contact of the outside air with the vertical wind direction adjusting vanes 4 to prevent dew condensation, or by reducing the number of rotations of the cross flow fan 22 that generates the blown air. This is a technique which aims to suppress the turbulence by causing the main flow direction of the blown wind to be directed in a fixed direction by the jump table 1 to prevent the occurrence of dew condensation.

However, in this case, since the jump table 1 is in direct contact with the blowing wind, it is cooled by cold air, and dew forms on the jump table end face 5 with which outside air comes into contact. Therefore, it is necessary to attach a water-retaining member such as a flocking tape to the end face.

On the other hand, the baffle plate 2 reduces the blowout area of the blow-out port 19 to partially increase the air volume and to allow more blown air to flow to the portion where dew condensation of the vertical wind direction adjusting vane 4 occurs. It is a technique that aims to reduce dew condensation as in the case of the jump table 1 that crawls and reduces the separation of the blowing wind. However, in this case, as shown in FIG. 11, instead of increasing the blowing air 18, the blowing air 17 is reduced, so that outside air flows into the blowing outlet structure from above the blowing outlet, and the jammer plate 2 directly contacts the blowing wind. Is cooled by the cool air, so that dew condensation occurs on the end surface 6 of the jammer plate. In this case as well, there is a need to attach a water-retentive member such as a flocking tape as in the case of the jump table 1.

As described above, in the prior art, as a result, the dew condensation phenomenon at the air outlet of the air conditioner can be reduced or prevented. It is necessary to attach a member having water retention properties, and it is necessary to attach a conventional technique as a new part, and there has been a problem that the number of parts increases. The present invention has been made in view of the problems of the related art, and has as its object to obtain a rectification mechanism of an air conditioner that can perform rectification with a simple structure.

[0007]

A rectifying mechanism for an air conditioner according to the present invention is provided in an outlet air passage to which conditioned air reaches an outlet, and rectifies the conditioned air in a predetermined flow direction. It has a rectifying mechanism with an air passage formed inside.

The rectifying mechanism supplies conditioned air having a predetermined flow rate or more to a wall forming an air outlet path.

Further, the air flow regulating member is provided in the rectifying mechanism.

The rectifying mechanism has a sectional shape parallel to the main flow of the blowing air.

Further, the rectifying mechanism is provided at a location where the blown air is deflected in different directions.

Further, the rectifying mechanism is provided on a guide vane base which is a mounting structure for the right and left wind direction adjusting vanes.

Further, the rectifying mechanism is provided in a unit box of a blower for generating blown air.

Further, the rectifying mechanism is provided at a central support portion of the blowing nozzle.

Further, the rectifying mechanism is formed integrally with any of the parts constituting the air conditioner.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an air conditioner according to an embodiment of the present invention; In the embodiments of the present invention described below, the same components as those of the above-described conventional example are denoted by the same reference numerals as those of the above-described conventional example, and description thereof will be omitted.

Embodiment 1 FIG. 1 is a sectional view showing a vertical wind direction adjusting vane dew-prevention mechanism located at an air outlet of an air conditioner according to the present invention. FIG. 2 is an enlarged front view of FIG.
FIG. 2 is an enlarged perspective view of FIG. FIG. 4 is an example in which an air volume adjusting member is attached to the mechanism of FIG. In the figure, reference numeral 23 denotes a heat exchanger for performing heat exchange between indoor air sucked in from a room and a refrigerant by a refrigeration cycle (not shown) to perform cooling or heating, and 19 denotes a conditioned air air-conditioned by the heat exchanger 23. An outlet to the room, which is defined by a nozzle upper frame component member 8 attached to the unit box 3 of the air conditioner body (indoor unit) and a lower wall portion 20 of the unit box 3. Reference numeral 22 denotes a blower for generating an air flow from the room to the air outlet through the heat exchanger 23, and here, a cross flow fan is used.

Reference numeral 7 denotes a guide vane base made of synthetic resin attached to the nozzle upper frame constituting member 8 by an attaching portion 9.
Reference numerals 10 are rectification boxes provided at the left and right ends of the guide vane base 7 and integrally formed so as to be at a position parallel to the main flow of the blown air in order to minimize pressure loss of the blown air. The air passage from the cross flow fan 22 formed by the unit box 3 to the outlet 19 is a heat exchanger 23.
The rectifying box 10 corresponds to a rectifying mechanism.

Left and right wind direction vanes 21 are attached to the guide vane base 7 at a predetermined interval, are connected to each other by a connecting member 24, and are driven to swing left and right by a motor (not shown). Rectifying box 10
Is provided in the vicinity of the air path wall between the outermost left and right wind direction vanes 21 and the blow-out air path.
Depending on the direction of 1, the flow rate of the conditioned air is reduced.

The guide vane base 7 has a mounting portion 11 for mounting a net-shaped air volume adjusting member for air volume adjustment.
Are integrally formed. FIG. 4 is a perspective view showing a state in which the air volume adjusting member is mounted. In FIG. 4, reference numeral 28 denotes a mesh-shaped air volume adjusting member for generating a predetermined passage resistance, which may be mounted on the upstream side or the downstream side with respect to the outlet 19. The same effect can be obtained, but here, it is mounted on the downstream side. The air volume adjusting member 28 can change the passage resistance by changing the fineness of the mesh or the like, and a mesh having an appropriate passage resistance may be selected and attached as needed.

Next, the operation will be described. For example, when the left and right wind direction vanes 21 face left, the flow of conditioned air on the right side of the outlet air path decreases, and indoor air flows in from the outlet 19, so that dew condensation easily occurs. According to the rectifying box 10 provided on the right side of the blow air path,
As a result, conditioned air having a constant air volume that is not affected by the left and right wind direction vanes 21 flows in the rectification box 10, and this flow is ensured to flow along the wall surface of the outlet air passage. Since the inflow of room air and the occurrence of turbulence due thereto are prevented, dew condensation does not occur.

In this embodiment, since the rectifying box 10 is formed of resin integrally with the guide vane base 7, the number of components related to the rectifying mechanism for rectifying the blown air can be reduced. In addition, the rectifying box 10 is located in the blowing air and does not contact the outside air, so that it does not become a dew point. Therefore, a special structure for preventing dew condensation such as flocking caused by the prior art is not required, and an increase in the number of parts can be prevented. As a result, the rectifying box 10 enables a reduction in the number of parts such as a member having a water retention property such as a flocking tape required in the prior art, and a reduction in the number of parts. It is possible to save time and labor for sorting.

Embodiment 2 FIG. FIG. 5 is a cross-sectional view showing a dew condensation preventing structure of a vertical wind direction adjusting vane located at an air outlet of an air conditioner according to the present invention, and FIG. 6 is a perspective view of FIG.
In FIG. 5, portions corresponding to those in FIGS. 1, 2, and 3 are denoted by the same reference numerals as those in FIGS. 1, 2, and 3, and description thereof is omitted. In the drawing, reference numeral 12 denotes a jump table box which is a rectifying mechanism having a hollow structure integrally formed with a unit box 3 constituting a rear wall of a conditioned air blowing air path, and 4 denotes a vertical wind direction which is driven by a motor (not shown) and moves vertically. It is an adjustment vane.

Jump box 1 having this hollow structure
2 is a position where the blown air flows along the vertical wind direction adjusting vane 4 located near the outlet 19 downstream of the blow air path, and at a position where the flow rate of the conditioned air decreases depending on the position of the vertical wind direction adjusting vane 4. It is present and has a hollow structure within a range that can withstand the strength of the unit box 3.

Further, in the jump stand box 12 having the hollow structure, a net-like air volume adjusting member 26 for adjusting the air volume of the blown air passing through the hollow structure is attached similarly to the first embodiment. The part 13 is integrally formed. The same effect can be obtained by attaching the net-shaped air volume adjusting member 26 used for the air volume adjustment to either the upstream or downstream portion with respect to the outlet, but in the present embodiment, it is mounted on the upstream side.

Next, the operation will be described. For example, when the vertical wind direction adjusting vane 4 faces upward, the flow of conditioned air decreases below the outlet air passage, and indoor air flows in from the outlet 19, so that dew condensation easily occurs. According to the configuration described above, the conditioned air having a constant air volume not influenced by the direction of the vertical wind direction adjusting vanes 4 flows in the hollow structure of the jump table box 12 by the jump table box 12 provided on the lower side of the blowing air path. Is ensured to flow along the back wall surface of the blow-off air passage, thereby preventing the inflow of room air from the outlet 19 side in the blow-out air passage and the occurrence of turbulent flow due thereto, so that dew condensation does not occur.

Since the jump table box 12 having the hollow structure is hollow at the dew point generated in the prior art, it does not come into contact with the outside air, and the area on the air path is kept small. Therefore, the jump stand box 12 itself does not become a new dew point.
Therefore, it is possible to prevent an increase in the number of parts such as flocking caused by the conventional technique.

Further, the jump stand box 12 enables a reduction in the number of parts such as a water-retaining member, such as a flocking tape, required in the prior art, which can be eliminated. It is possible to save time and labor for separation from the mechanism.

Embodiment 3 FIG. 7 is a sectional view without showing a vertical wind direction adjusting vane dew condensation preventing structure located at an air outlet of an air conditioner according to the present invention, and FIG. 8 is a conceptual diagram of FIG. In FIGS. 7 and 8, portions corresponding to FIGS.
The same reference numerals as the reference numerals 2 and 3 denote the same parts, and a description thereof will be omitted. In the figure, reference numeral 14 denotes a nozzle center indicating unit existing in the nozzle upper frame constituting member 8, and 15 denotes a nozzle center indicating unit 14.
A central rectifying box integrally formed with the rectifying mechanism. The rectifying mechanism has a hollow structure that penetrates in the flow direction of the conditioned air in the outlet air passage.

The central rectifying box 15 is located at a position parallel to the main flow of the blown air in order to minimize the amount of pressure loss of the blown air. Further, the central rectifying box 15 is located at a place where a turbulent flow occurs when the left and right wind direction vanes face different directions.

Next, the operation will be described. For example, when the left and right wind direction vanes 21 are directed leftward on the left side of the nozzle center indicating unit 14 and rightward on the right side, the nozzle center indicating unit 1
In the vicinity of 4, the flow of conditioned air decreases, and dew condensation is likely to occur due to the inflow of room air from the outlet 19. However, according to the configuration of the present embodiment, the central rectifying box provided in the nozzle The conditioned air flows through the hollow structure of the central rectification box 15 at a constant flow rate which is not affected by the directions of the left and right wind direction vanes 21. Prevents dew condensation from occurring.

Further, since the central rectifying box 15 is located in the blown air and does not come into contact with the outside air, it does not become a dew point generated for rectifying and prevents an increase in the number of parts caused by the prior art. Further, as in the first embodiment, the central rectifying box 15 is integrally formed with a mounting portion 16 for mounting a net-like member for adjusting the blowing wind passing through the hollow structure. The same effect can be obtained by attaching the net-shaped air volume adjusting member 27 used for this air volume adjustment to the upstream and downstream portions with respect to the outlet, but in the present embodiment, it is attached to the downstream side.

Since the central rectifying box 15 is formed integrally with the nozzle upper frame constituting member 8, the number of components does not increase in order to rectify the blown air near the center of the outlet. In addition, the central rectifying box 15 enables a reduction in the number of parts such as a member having a water retention property such as a flocking tape required in the prior art, and enables the flocking tape and the rectifying mechanism to be used during dismantling processing such as recycling. It is possible to save time and effort for sorting.

The first to third embodiments can be implemented by combining them. For example, an air conditioner including all of the first to third embodiments can be provided.

[0035]

As will be understood from the above description, according to the present invention, the conditioned air is provided in the outlet air passage leading to the air outlet, and the conditioned air is rectified in a constant flow direction. With a rectifying mechanism with an air passage formed inside,
An effect that rectification can be performed with a simple configuration while maintaining the ventilation performance can be obtained.

Further, since the rectifying mechanism supplies the conditioned air at a predetermined flow rate or more to the wall surface forming the blow-out air passage, it is possible to prevent the occurrence of dew condensation due to the backflow of room air from the outlet.

Further, since the air flow adjusting member is provided in the rectifying mechanism, an effect that the air flow rectified by the rectifying mechanism can be appropriately adjusted can be obtained.

Further, since the rectifying mechanism has a cross-sectional shape parallel to the main flow of the blown wind, the rectifying mechanism causes a new airflow resistance or causes turbulence, thereby preventing dew condensation from occurring. The effect that smooth rectification can be obtained.

Further, since the rectifying mechanism is provided at a position where the blown air is deflected in different directions, it is possible to prevent the occurrence of turbulence and dew condensation due to the deflection.

Further, since the rectifying mechanism is provided on the guide vane base which is a mounting structure of the right and left wind direction adjusting vanes, the rectifying effect can be obtained without adding a new dew condensation preventing structure for the rectifying mechanism.

Further, since the rectifying mechanism is provided in the unit box of the blower that generates the blown air, it is possible to prevent turbulence and dew condensation generated when the blown air separates from the unit box. The rectification effect can be obtained without adding a dew condensation preventing structure.

Further, since the rectifying mechanism is provided at the center support portion of the blow-out nozzle, it is possible to prevent the occurrence of turbulence at the boundary when the wind direction is directed in different directions.

Further, since the rectifying mechanism is integrally formed with any one of the parts constituting the air conditioner, the rectifying mechanism can be formed without increasing the number of parts.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a rectifying mechanism of an air conditioner according to Embodiment 1 of the present invention.

FIG. 2 is an enlarged front view showing a rectifying mechanism of the air conditioner according to Embodiment 1 of the present invention.

FIG. 3 is an enlarged perspective view showing a rectifying mechanism of the air conditioner according to Embodiment 1 of the present invention.

FIG. 4 is an enlarged perspective view of the air conditioner according to Embodiment 1 of the present invention in which an air volume adjusting member is attached to a rectifying mechanism.

FIG. 5 is a cross-sectional view illustrating a rectifying mechanism of an air conditioner according to Embodiment 2 of the present invention.

FIG. 6 is a box perspective view showing a rectifying mechanism of an air conditioner according to Embodiment 2 of the present invention.

FIG. 7 is a cross-sectional view illustrating a rectifying mechanism of an air conditioner according to Embodiment 3 of the present invention.

FIG. 8 is a front view and a part view showing a rectifying mechanism of an air conditioner according to Embodiment 3 of the present invention.

FIG. 9 is a cross-sectional view showing a conventional basic air conditioner.

FIG. 10 is a cross-sectional view showing a conventional dew condensation preventing mechanism (jump stand specification) at an air outlet of an air conditioner.

FIG. 11 is a cross-sectional view showing a conventional dew condensation preventing mechanism (jam plate specification) at an air outlet of an air conditioner.

[Explanation of symbols]

1 Jumping stand, 2 Jammer board, 3 Unit box, 4 Vertical wind direction adjusting vane, 5 Jumping board end face, 6 Jammer board end face, 7 Guide vane base,
8 Nozzle upper frame constituent member, 9 Mounting part, 10
Rectifying box, 11 mounting part, 12 jump stand box, 13 mounting part, 14 nozzle central support part, 15 central rectifying box, 16 mounting part, 17 blowout wind, 18 blowout wind, 19 blowout outlet,
Reference Signs List 20 lower wall part of unit box, 21 right and left wind direction adjustment vanes, 22 cross flow fan, 23
Heat exchanger, 24 connecting members, 25 flocking tape,
26, 27, 28 Air volume adjusting member.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Takahiro Murayama, 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsui Electric Co., Ltd. (72) Motoo Sano 2-3-2, Marunouchi, Chiyoda-ku, Tokyo Rishi Electric Co., Ltd. (72) Inventor Jinichi Suzuki 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Sanishi Electric Co., Ltd. (72) Inventor Hiroaki Ishikawa 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsubishi F term (reference) in Denki Co., Ltd. 3L081 AA01 AA09 AB05 FA03 FA04 HA01

Claims (9)

[Claims] 1. A rectifying mechanism provided in an outlet air passage to which conditioned air reaches an air outlet, wherein a rectifying mechanism having an air passage formed therein so as to rectify the conditioned air in a constant flow direction is provided. Rectification mechanism of the air conditioner to be used. 2. The rectifying mechanism for an air conditioner according to claim 1, wherein the rectifying mechanism supplies a conditioned air having a predetermined flow rate or more to a wall forming an outlet air passage. 3. The rectifying mechanism for an air conditioner according to claim 1, wherein an air flow adjusting member is provided in the rectifying mechanism. 4. The rectifying mechanism for an air conditioner according to claim 1, wherein the rectifying mechanism has a cross-sectional shape parallel to a main flow of the blown wind. 5. The rectifying mechanism for an air conditioner according to claim 1, wherein the rectifying mechanism is provided at a position where the blown wind is deflected in different directions. 6. The rectifying mechanism for an air conditioner according to claim 1, wherein the rectifying mechanism is provided on a guide vane base, which is a mounting structure for the right and left wind direction adjusting vanes. 7. The air conditioner according to claim 1, wherein the rectifying mechanism is provided in a unit box of a blower that generates blown air.
The rectifying mechanism for an air conditioner according to any one of claims 4 to 4. 8. The rectification mechanism for an air conditioner according to claim 1, wherein the rectification mechanism is provided at a center support portion of the blowing nozzle. 9. The rectifying mechanism for an air conditioner according to claim 1, wherein the rectifying mechanism is integrally formed with any one of the parts constituting the air conditioner.