JP4978267B2 - Air conditioner - Google Patents

Description

  The present invention relates to an air conditioner, and more particularly to an air conditioner that can be reduced in thickness. Here, the air conditioner means an apparatus equipped with an air adjusting device for adjusting at least one of temperature, humidity and cleanliness of room air, that is, an air conditioner in a broad sense. Moreover, the cleanliness in the above means the degree of inclusion of dust, airborne contaminant particles, gaseous contaminants, odorous components, etc. contained in the air.

  In recent years, regarding the shape of an air conditioner, there is an increasing demand for reducing the depth dimension generally. In other words, thinness orientation has become stronger. In addition, regarding the design of the air conditioner, a front panel having a flat surface shape that is not provided with an indoor air inlet that changes the surface shape has been preferred. In addition, a front panel having a flat surface shape design that does not have an indoor inlet is generally referred to as a flat front panel. In the following description, the term flat is used in this sense.

  Further, when the air conditioner is thinned, a structurally general problem is the arrangement of an air conditioning device such as a heat exchanger and a fan, and further, an indoor air inlet and an air outlet related to this arrangement. It is arrangement | positioning and the structure of an indoor blower outlet. In general, in an air conditioner, it is usual that an air conditioning device and a fan are arranged in the front and rear in the machine. However, as long as such an arrangement is made, it has been difficult to attempt to reduce the thickness sufficiently.

Therefore, to overcome this limitation, the centrifugal fan is placed in the center of the machine with the rotary shaft in the front-rear direction so that the fan suction port opens on the back side, and air is adjusted to the radial outer periphery of the centrifugal fan. A thin air conditioner in which a heat exchanger as an industrial device is arranged has been proposed. Further, this thin air conditioner is configured such that room air is sucked from the back side of the air conditioner, and air after air adjustment is blown out from the front side corner portion. Patent document 1 is the example.
JP 2006-336910 A

  However, this air conditioner has a satisfactory effect in terms of thickness reduction, but the front blower is provided with an indoor outlet in the front side corner portion, so it fully satisfies the demand for a flat front panel. It wasn't. Therefore, the inventor proposes here a thin air conditioner in which the front panel is completely flattened without providing the air outlet at the front corner portion. In addition, functional problems when reducing the thickness of an air conditioner are generally due to stricter dimensional restrictions. Therefore, a short circuit between the indoor air inlet and the indoor outlet, an increase in internal ventilation resistance, noise An increase in the number can be considered. Therefore, the air conditioner proposed here has solved these problems in consideration.

  The present invention has been made in view of the circumstances as described above, and provides a thin air conditioner that can adopt a flat front panel and has excellent quietness while suppressing an increase in noise. With the goal.

An air conditioner according to the present invention that solves the above problems includes a main body housing having a substantially square front view with a front surface opened, a partition plate attached to the front surface of the main body housing, and a fan suction port as viewed from the front. A centrifugal fan arranged in the main body housing with the rotation axis in the front-rear direction so that the front is substantially central, and a flat front panel arranged to face the partition plate at a predetermined interval on the front side of the partition plate And an indoor air intake port formed on two opposing sides of the periphery between the front panel and the partition plate, and an indoor air intake port formed entirely between the front panel and the partition plate A suction side chamber, an air conditioning device for adjusting at least one of temperature, humidity and cleanliness of indoor air arranged on the radial blowout side of the centrifugal fan in the main body housing; and a downstream side of the air conditioning device Side and indoor sky An air outlet for blowing out the air after air adjustment arranged in a direction substantially orthogonal to the air inlet, and a bell at the center of the partition plate so as to face the fan air inlet of the centrifugal fan A mouse is attached, and the air flow flowing from each indoor air intake port is divided into three air flows from the central portion of the indoor air intake port and the air flow flowing from both side portions of the indoor air intake port. A guide member that forms three passages that are divided and guided to the fan suction port is provided, and the passage that guides the airflow flowing in from the central portion is substantially straight toward the fan suction port and has a passage width. On the other hand, the passage that guides the airflow flowing from both side portions is guided to both side portions of the fan suction port, and is formed to reduce the passage width. And

According to the above configuration, the air conditioning device and the centrifugal fan are arranged in a plane, and these devices are not arranged side by side in the front-rear direction of the product as in a general air conditioner. Thinner compared to a harmonic machine. In addition, an air conditioning device is disposed on the radial blowout side of the centrifugal fan in the main body casing, and an indoor air outlet is disposed on the downstream side of the air conditioning device and in a direction substantially orthogonal to the indoor air suction port. Therefore, the indoor air inlet and the indoor outlet are formed in different directions, and a short circuit between the indoor air inlet and the indoor outlet is prevented. In addition, since the entire space between the front panel and the partition plate is formed as a suction side chamber, and the indoor air suction port is formed on two opposing sides of the periphery between the front panel and the partition plate, The front panel can be completely flattened. Further, in the present invention, the airflow flowing from the indoor air inlets into the suction side chamber is divided into the airflow flowing from the center of the indoor air inlet and the airflow flowing from both sides of the indoor air inlet. A guide member is provided that forms three passages that are divided into three and guide the fan suction port. Further, the passage for guiding the airflow flowing in from the central portion of the guide member is formed so as to be substantially straight toward the fan suction port and the passage width is enlarged, and on the other hand, the passage flows from both side portions. The passage for guiding the airflow is guided to both side portions of the fan suction port, and is formed so as to reduce the passage width. Thereby, the drift between the center part and side part in an indoor air suction inlet is improved, and a noise is reduced. If such a guide member is not provided in the suction side chamber, it is sucked from the center of the indoor air suction port with low ventilation resistance, and is linear from the indoor air suction port to the fan suction port. The air volume is concentrated on the route that flows through. On the other hand, the amount of air that is sucked from both side portions of the indoor air intake port and should be drawn while drawing a curve with respect to the fan intake port located on the center line between the indoor air intake ports is reduced. Therefore, an axisymmetric airflow distribution cannot be obtained at the fan inlet. However, in the case of the present invention, since the drift of the suction airflow at the fan suction port is improved as described above, an increase in noise due to this drift is suppressed, and the noise of the air conditioner can be reduced.

  The guide member is a straight line formed symmetrically in the vertical and horizontal directions from both indoor air inlets to the fan inlet, and is formed of an inclined piece extending in a direction inclined with respect to the indoor air inlet. It may be configured. Even with such a simple configuration, it is possible to improve the drift in the fan suction port and to suppress an increase in noise.

  Further, the guide member is formed symmetrically vertically and horizontally from both indoor air inlets to the fan inlet, and is linear from the indoor air inlet to the fan inlet. It may extend in a direction inclined with respect to the mouth, and may be formed to be curved in the vicinity of the fan suction port so as to go toward the center of the rotation axis of the fan. When configured in this way, the guide member can be shaped to fit the improved air flow line, so that the resistance of the guide member itself can be reduced, and the increase in noise can be further suppressed.

  Each guide member may be configured by a plate-like member having a width dimension between the front panel and the partition plate. If comprised in this way, a guide member can be formed easily.

  Each of the guide members may be composed of a set of two plate members having a predetermined interval. If comprised in this way, compared with the case where airflow is changed with one plate-shaped member, an airflow can be deflected reasonably by setting it as a set of 2 sheets. That is, in order to deflect the air sucked from the indoor air suction port in a small space and guide it to the fan suction port, when the guide member is made of a single plate-like member, the separation vortex is generated at the portion where the flow path is enlarged. Although it is easy to form, when a set of two guide members having an appropriate interval is used, the flow path can be brought close to the air flow line, so that the generation of this separation vortex can be reduced. As a result, noise can be further reduced.

  Further, as described above, each guide member may be formed of a substantially streamlined wing-shaped blade member instead of configuring each guide member with a set of two plate members. If comprised in this way, since the whole guide member can be made into the shape which fits the improved airflow line, the resistance of guide member 9 itself reduces, and the raise of a noise can be suppressed further.

  Each guide member may be formed integrally with the front panel. If comprised in this way, while being able to form easily the shape along a complicated airflow line, the attachment operation | work of a guide member becomes unnecessary. Therefore, assembly and disassembly work for maintenance of the equipment installed inside is also facilitated. Moreover, in the case of such a structure, a prefilter can be easily attached to the windward side of a bell mouth by attaching a prefilter to a partition plate.

  The guide members can be molded integrally with the partition plate instead of the front panel. If the guide member is injection-molded integrally with the front panel as described above, it is conceivable that a pattern can be formed on the surface of the front panel due to the shrinkage that can be made during injection molding. However, if the guide member is injection-molded integrally with the partition plate, such a pattern on the front panel can be surely avoided. A beautiful appearance can be obtained.

  Further, the entire guide member may be formed of a sound absorbing material. If comprised in this way, the noise generation energy of the fan inlet vicinity will be absorbed with the sound-absorbing material which forms a guide member. Therefore, noise can be reduced by reducing noise generation energy released forward from the vicinity of the fan inlet.

  Each guide member may have a surface formed of a sound absorbing material. If it does in this way, the usage-amount of a sound-absorbing material can be reduced and the cost can be reduced, maintaining a noise reduction effect.

  Further, the indoor air inlet is formed on the upper and lower sides of the periphery of the space between the front panel and the partition plate, and the air conditioning device is disposed on the left and right radial outlets of the centrifugal fan, The indoor air outlet may be provided on the left and right sides of the main body housing. In this way, the adjusted air can be blown symmetrically while avoiding a short circuit between the indoor air inlet and the indoor outlet. Moreover, when comprised in this way, it becomes easy to make the wind speed distribution of the right and left air adjustment apparatus uniform, and to improve the efficiency of air adjustment. In addition, when the air conditioner is arranged and used along the substantially central portion of one wall surface of the room where the air conditioner is installed, the air adjusted through the air conditioning device blows out along the wall surface. Thus, a circulating airflow is formed that sucks room air from the front of the air conditioner. As a result, a circulating airflow that wraps around the room is formed, so that the whole room can efficiently adjust the air.

  Moreover, it is preferable that a pre-filter is attached to the front side of the bell mouth on the partition plate. With such a configuration, large dust in the air is removed before the air recirculated from the room is passed through the air conditioning device, so large dust such as lint is sucked into the centrifugal fan and the air conditioning device. It is prevented. Further, since the pre-filter rectifies the airflow sucked into the centrifugal fan, the in-machine resistance is reduced and the noise is reduced.

  In the air conditioner having such a configuration, the air conditioning device may include at least one of a dust collection filter and a deodorization filter. If comprised in this way, it can be set as a thin air cleaner.

  Moreover, the said air conditioning apparatus shall be equipped with the heat exchanger which cools or heats indoor air at least. In this way, a thin air conditioner indoor unit can be configured.

The centrifugal fan may be a turbo fan. When the centrifugal fan is a turbo fan, the operation efficiency is increased, so that energy saving of the device can be achieved.
The centrifugal fan may be a radial fan. When the centrifugal fan is a radial fan, the airflow blown out from the centrifugal fan becomes an airflow with few components in the circumferential direction, so that the turbulence when the airflow enters the air conditioning device is reduced. As a result, the airflow resistance is reduced and the noise is reduced. That is, energy saving and noise reduction of the device can be achieved.

According to the air conditioner according to the present invention, since the air conditioning device and the centrifugal fan are arranged in a plane, the main body casing can be thinned. Moreover, since the indoor outlet is arranged in a direction orthogonal to the indoor air inlet, a short circuit between the indoor inlet air and the indoor outlet air is prevented. In addition, since the entire space between the front panel and the partition plate is formed as a suction side chamber, and the indoor air suction port is formed on two opposing sides of the periphery between the front panel and the partition plate, The front panel can be completely flattened. Further, in the suction side chamber, the airflow flowing from each indoor air suction port is divided into three parts, an airflow flowing from the central portion of the indoor air suction port and an airflow flowing from both side portions of the indoor air suction port. Guide members forming three passages for guiding to the suction port are provided. The passage for guiding the airflow flowing in from the central portion is formed so as to be substantially straight toward the fan suction port and the passage width is enlarged, and on the other hand, the airflow flowing in from both side portions is guided. The passage to be guided is guided by both side portions of the fan suction port, and is formed so as to reduce the passage width.
By such a guide member, the drift between the center part and the side part in the indoor air suction port is improved, and noise is reduced. Moreover, since the front of the fan suction port is covered with a flat front panel, the noise of the fan leaking to the front is reduced.

(Embodiment 1)
Hereinafter, an air conditioner according to an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is an exploded perspective view of the air conditioner according to the present embodiment, FIG. 2 is an external perspective view of the air conditioner, and FIG. 3 is a rear perspective view of the front panel of the air conditioner. 4 is a side sectional view of the air conditioner, and FIG. 5 is an air flow diagram in the suction side chamber as viewed from the front of the air conditioner. In addition, the air flow diagram in the suction side chamber seen from the front of the air conditioner according to the reference example is shown in FIG.

  The air conditioner according to the present embodiment is a so-called air purifier that is floor-standing and uses an air purifying filter as an air conditioning device. As shown in FIGS. 1 to 4, the housing of the air cleaner includes a substantially box-shaped main body housing 1 whose front surface is opened, a partition plate 2 attached to the front surface of the main body housing 1, and Furthermore, it is comprised from the front panel 3 attached to the front surface of this partition plate 2. As shown in FIG. In addition, the solid line arrow in FIG.2 and FIG.4 shows the flow direction of air.

  The main body housing 1 is formed in a substantially box-shaped thin portion 11 whose uppermost portion is thin, and the lower portion of the thin portion 11 is deep enough to be flush with the front surface of the front panel 3. A large electrical component storage portion 12 is formed. The electrical component storage unit 12 also serves as a base member of the air conditioner. Further, in the electrical component storage portion 12, the corner portion from the front upper portion to the upper surface of the forward protruding portion is an indoor air suction formed between the lower end portion of the front panel 3 and the lower end portion of the partition plate 2 described later. A side cross section is formed in a curved recess 13 so as to be continuous with the mouth 8b (see FIG. 4). Stepped portions 14 are formed at the upper and lower corners of the left and right sides of the thin portion 11 of the main body housing 1, and an air purifying filter as an air conditioning device 4 described later is accommodated between the upper and lower stepped portions 14. It is formed as a storage space 15 (see FIG. 1). An inward flange 16 is formed on the front surface of the thin portion 11 of the main body housing 1, and a plurality of screw holes 17 for attaching the partition plate 2 are formed in the inward flange 16 (see FIG. 1).

  The air purifying filter as the air conditioning device 4 attached to the left and right sides of the main body housing 1 is an example of the air conditioning device 4 in the present invention, and is an airborne contaminant particle, a gaseous contaminant in the circulating air. It is a filter member or equipment provided with a function of removing contaminants such as and purifying air. In addition, although the detail is not described in drawing, this air purifying filter may be a conventionally well-known thing. For example, a bio-antibody filter that quickly adsorbs a virus floating in the air by the force of bio-antibodies is provided on the blow-out side of a centrifugal fan 5 described later, and dust and pollen are charged positively in the plasma ionization section on the downstream side, An electrostatic dust collection filter that adsorbs dust and pollen with a negatively charged filter is disposed. A deodorizing filter such as a photocatalytic apatite filter that decomposes odor components and adsorbs fungi and viruses is disposed downstream of the electrostatic dust collection filter. The air purifying filter having such a configuration is formed in a rectangular parallelepiped shape whose outer peripheral shape matches the shape of the storage space 15, and the left and right filters are formed in substantially the same shape. The air purifying filter is detachably attached from the front side of the main body housing 1 in a state where a front panel 3 and a partition plate 2 described later are removed.

In addition, indoor air outlets 18 for blowing purified air into the room are formed on both side surfaces of the main body housing 1 on the air outflow side of the air conditioning device 4.
In addition, a centrifugal fan 5 is disposed in the central portion of the main body housing 1 as viewed from the front surface of the thin portion 11. A turbo fan is used as the centrifugal fan 5. The centrifugal fan 5 is arranged with the rotating shaft 52 of the impeller 51 in the front-rear direction and the fan suction port 53 formed by the shroud 54 on the front side. A fan motor 55 is attached to the back plate of the main housing 1. Further, a bulging portion 56 is formed by bulging the central portion of the hub located on the rear side of the centrifugal fan 5 in a circular shape in the forward direction. A fan motor 55 is disposed in the bulging portion 56. The fan motor 55 is designed to be thin, so that the bulge of the bulging portion 56 in the forward direction is minimized. Moreover, the air purifying filter as the above-mentioned air conditioning device 4 is attached to the left and right of the main body housing 1 on the radial blowing side of the impeller 51 of the centrifugal fan 5.

  The partition plate 2 has a flat plate shape, and a plurality of through-holes 21 for screw penetration for screwing to the inward flange on the front surface of the main body housing 1 are provided in the periphery. The partition plate 2 is detachably screwed to the inward flange 16 on the front surface of the main body case 1 with screws (not shown) through the through holes 21 (see FIG. 1). A bell mouth 22 is formed on the partition plate 2 at a position corresponding to the fan suction port 53 of the centrifugal fan 5. By forming the partition plate 2 in this way, the partition plate 2 functions so that the inside of the partition plate 2 is the fan blowing side and the front side of the partition plate 2 is the fan suction side. Further, the partition plate 2 also serves as a storage wall on the front side of the storage space 15 of the air conditioning device 4.

  A pre-filter 6 is attached to the front side of the bell mouth 22 formed at the center of the partition plate 2. The pre-filter 6 is a catechin-containing filter that has a function of collecting large dust, pet hair, and the like and sterilizing bacteria and mold components adhering to the dust.

  The front panel 3 is formed by bending both sides of the front plate 31 having a flat plane backward to form a bent piece 32, and by appropriately setting the size of the bent piece 32, the front panel 3 is separated from the partition plate 2. The suction side chamber 7 having a narrow interval is formed as a whole. The front panel 3 is detachably attached to the main body housing 1 or the partition plate 2 by an appropriate means (not shown). Then, indoor air inlets 8a and 8b are formed in a slit shape between the upper end portion of the front panel 3 and the upper end portion of the partition plate 2, and between the lower end portion of the front panel 3 and the lower end portion of the partition plate 2, respectively. Has been. Accordingly, the indoor air inlets 8a and 8b are in a direction that is 90 degrees different from the above-described indoor outlet 18 in the mounting direction.

  Further, on the back surface of the front panel 3, a guide for forming three passages by dividing the airflow flowing into the suction side chamber 7 from the indoor air suction ports 8a and 8b into three portions in the vicinity of the indoor air suction ports 8a and 8b. A member 9 is provided. The guide member 9 is a linear and flat plate extending from the vicinity of the position where the indoor air suction ports 8a and 8b are divided into approximately three equal parts in the left-right direction (longitudinal direction) toward the position slightly outside the outer periphery of the fan suction port 53. It consists of the member. As shown in FIG. 5, the guide member 9 has a horizontal line passing through the center of the rotary shaft 52 of the centrifugal fan 5 such that the width direction of the guide member 9 is substantially perpendicular to the back surface of the front panel 3. The line H is provided at four locations so as to be symmetrical in the vertical direction and symmetrical with respect to a vertical line passing through the center of the rotating shaft 52 of the centrifugal fan 5.

  Further, in this embodiment, the guide member in which the distance in the left-right direction between the guide members 9 at a position where the indoor air suction ports 8 a and 8 b are divided into approximately three equal parts extends to a position slightly outside the outer periphery of the fan suction port 53. It is smaller than the distance in the left-right direction between the terminal ends of 9. Therefore, in the suction side chamber 7, the three passages that divide the airflow flowing from the indoor air suction ports 8a and 8b into three and guide them to the fan suction port flow from the central portions of the indoor air suction ports 8a and 8b. The passage for guiding the airflow Sc is formed linearly toward the fan suction port 53 and formed so that the passage width is enlarged. On the other hand, the passage for guiding the airflow Se flowing in from both side portions of the indoor air suction ports 8a and 8b is formed so that air is guided from both side portions in the fan suction port and the width of the passage is reduced. Has been.

Next, the operation of the air conditioner according to the present embodiment will be described.
When an operation switch (not shown) is turned on, the fan motor 55 is operated and the centrifugal fan 5 is operated, and an air cleaning filter including an electrostatic dust collection filter that requires a power source is operated. As a result, room air is sucked through the room air inlet 8a formed in a slit shape between the upper end portion of the front panel 3 and the upper end portion of the partition plate 2. The room air is formed in a slit shape between the lower end portion of the front panel 3 and the lower end portion of the partition plate 2 from the recess 13 formed in the front surface of the electrical component storage portion 12 of the main body housing 1. The air is also sucked through the air suction port 8b. Thus, the indoor air sucked from both the indoor air suction ports 8 a and 8 b enters the suction side chamber 7 formed between the front panel 3 and the partition plate 2.

  When the guide member 9 of the present invention is not provided, the air flowing into the suction side chamber 7 from both the indoor air suction ports 8a and 8b generally flows as shown in FIG. That is, both the indoor air suction ports 8a and 8b are provided only on the upper and lower sides, and the fan suction port 53 of the centrifugal fan 5 is opened at the center of the suction side chamber 7 through the bell mouth 22, so that the rotation shaft of the centrifugal fan 5 is rotated. The air flow is symmetrical in the vertical direction with a center line (horizontal line passing through the center of the rotation axis of the centrifugal fan 5) between the indoor air inlets 8a and 8b passing through the center of 52 as a boundary line H. Further, the air flowing into the suction side chamber 7 is concentrated in a path in which the air flows linearly from the central portion of the indoor air suction ports 8a and 8b to the fan suction port 53, but the air in the indoor air suction ports 8a and 8b. The amount of air flowing along the path from both side parts to both side parts of the fan suction port 53 is small. Accordingly, in the fan suction port 53, since the air volume is large in the upper and lower portions A and the air volume is decreased in the left and right portions B, an axisymmetric air flow distribution cannot be obtained.

  However, in this embodiment, the air flow Sc flowing into the suction side chamber 7 from the central part of the indoor air suction ports 8a, 8b and the air flow Se flowing from both side portions of the indoor air suction ports 8a, 8b. Three passages are formed which are divided into three substantially equal parts and are guided to the fan suction port 53. Furthermore, the passage for guiding the airflow Sc flowing in from the center of the indoor air suction ports 8a and 8b is formed linearly toward the fan suction port 53 and is formed so that the passage width is enlarged. . On the other hand, the passage for guiding the airflow Se flowing from both side portions of the indoor air suction ports 8a and 8b is guided so as to flow from both side portions of the fan suction port 53, and the width of the passage is reduced. It is formed as follows. Thereby, the drift of the suction airflow in the fan suction port 53 is improved, the noise of the fan due to the drift of the suction airflow is reduced, and the noise of the air conditioner is reduced.

  In addition to the action of the guide member 9, the prefilter 6 is attached to the front side of the bell mouth 22, so that the dynamic pressures of the airflows Sc and Se in the suction side chamber 7 are replaced with static pressure. As a result, the air flow at the fan suction port 53 is rectified, so that the drift at the fan suction port is further improved and the noise is further reduced.

  And the indoor air which flowed in from both indoor air suction inlets 8a and 8b is suck | inhaled by the centrifugal fan 5 via the pre filter 6, the bell mouth 22, and the fan suction inlet 53, and is blown off to the radial direction blowing side of the impeller 51. . In this route, the prefilter 6 collects large dust, pet hair, and the like, and bacteria and molds attached to the dust and the like are removed by the catechin component.

  Further, the air blown out in the radial direction from the centrifugal fan 5 is sent to an air purifying filter as the left and right air adjusting devices 4 in the main body housing 1. The room air sent to the air cleaning filter is adsorbed by the bio-antibody filter, and the virus that is floating is adsorbed by the electrostatic dust collector, and dust and pollen are positively charged and adsorbed by the negatively charged filter. Further, the odor component is decomposed by the deodorizing filter, and bacteria and fungi are adsorbed and the odor is removed, and purified air is blown out in the left-right direction from the indoor outlet 18.

  In addition, the air cleaner formed as mentioned above is used along a wall surface as a floor-standing type. In a room where the air purifier is used, indoor air is sucked from the front side of the upper and lower portions of the air purifier, whereas air that has been air-conditioned is transferred from the side surface of the main body housing 1 to the wall surface. Along along. For this reason, in the room, a circulating airflow is formed from the periphery of the room toward the front center of the air conditioner, and the air in the entire room is efficiently cleaned.

According to the air conditioner configured as described above, the following effects can be obtained.
(1) The air conditioning device 4 and the centrifugal fan 5 are arranged in a plane and are not arranged side by side in the front-rear direction unlike conventional general products. And can be made thin. Moreover, since the air purifying filter as the air conditioning device 4 is arranged on the outlet side of the centrifugal fan 5, the sound absorbing effect and the sound insulating effect by the air purifying filter are exhibited, and the noise of the air conditioner can be reduced.

  (2) In addition, the air conditioning device 4 is disposed on the radial blowout side of the centrifugal fan 5 in the main body housing 1, and the indoor air inlets 8 a and 8 b are downstream of the air conditioning device 4 and The indoor air outlet 18 is arranged in a direction substantially orthogonal to. Therefore, since the indoor air inlets 8a and 8b and the indoor outlet 18 are formed in different directions, a short circuit between the indoor air inlets 8a and 8b and the indoor outlet 18 is prevented.

  (3) Further, the entire space between the front panel 3 and the partition plate 2 is formed as the suction side chamber 7, and the indoor air suction ports 8 a and 8 b are located in the periphery between the front panel 3 and the partition plate 2. Since the two opposing sides are formed, the front panel 3 can be completely flattened. Moreover, since the front panel 3 is flat, cleaning of the front panel 3 is facilitated, and maintenance is improved.

  (4) In the suction side chamber, the air flow flowing in from the indoor air suction ports 8a and 8b is divided in the vicinity of the indoor air suction ports 8a and 8b, and the divided air flow is improved so as to improve the drift in the fan suction port 53. Since the guide member 9 that guides in the vicinity of the suction port 53 is provided, the drift of the suction airflow at the fan suction port 53 is improved. As a result, an increase in noise due to the drift of the suction airflow is suppressed, and the noise of the air conditioner can be reduced.

  (5) The guide member 9 flows the airflow flowing in from the indoor air intake ports 8a and 8b from the airflow Sc flowing in from the center of the indoor air intake ports 8a and 8b and the side portions of the indoor air intake ports 8a and 8b. The three air paths Se are divided into three and guided to the fan suction port 53. Further, the passage for guiding the airflow Sc flowing from the central portion is formed linearly toward the fan suction port 53 and is formed so that the passage width is enlarged, and on the contrary, the passage flows from both side portions. The passage for guiding the airflow Se to be guided is formed so that the guided airflow Se is sucked from both side portions of the fan suction port 53 and the passage width is reduced. When the guide member 9 is not provided, drift tends to occur between the upper and lower portions A and the left and right portions B of the fan suction port 53. However, the predetermined number of the fan suction port 53 is determined from the three passages divided as described above. Since it is sucked in at a location, a reasonable improvement is made that has a good effect at low cost.

  (6) The guide member 9 is a straight line formed symmetrically in the vertical and horizontal directions from the indoor air intake ports 8a and 8b toward the fan intake port 53, and is inclined with respect to the indoor air intake ports 8a and 8b. It is comprised so that it may consist of the inclination piece extended in a direction, Comprising: With a simple structure, the drift in the fan suction inlet 53 can be improved, and the raise of a noise can be suppressed.

  (7) Moreover, since the guide member 9 is made of a plate-like member having a width dimension between the front panel 3 and the partition plate 2, the guide member 9 can be easily formed.

  (8) Since each guide member 9 is molded integrally with the front panel 3, it is possible to easily form a shape along a complicated air flow line and to attach the guide member 9. Work is also unnecessary. Therefore, assembly and disassembly work for maintenance of the equipment installed inside is also facilitated. In the case of such a configuration, the prefilter 6 can be easily attached to the windward side of the bell mouth 22 by attaching the prefilter 6 to the partition plate 2.

  (9) The indoor air inlets 8 a and 8 b are formed on the upper and lower sides of the periphery of the space between the front panel 3 and the main body housing 1, and the air conditioning device 4 is provided with the left and right diameters of the centrifugal fan 5. It arrange | positions at the direction blowing side, and the indoor blower outlet 18 is provided in the right-and-left side part of the main body housing | casing 1 further. Therefore, the adjusted air can be blown symmetrically while avoiding a short circuit between the indoor air inlets 8a, 8b and the indoor outlet 18. Moreover, it becomes easy to make the air velocity distribution of the right and left air adjusting devices 4 uniform and improve the efficiency of air adjustment. Moreover, when this air conditioner is disposed and used along substantially the center of one wall surface of the room where the air conditioner is installed, the air that has passed through the air conditioning device 4 is adjusted along the wall surface. A circulating airflow is formed which is blown out and sucks room air from the front of the air conditioner. As a result, a circulating airflow that wraps around the room is formed, so that the whole room can efficiently adjust the air.

  (10) Since the prefilter 6 is attached to the front side of the bell mouth 22 formed on the partition plate 2, large dust such as lint may be sucked into the centrifugal fan 5 and the air conditioning device 4. Is prevented. Further, the prefilter 6 prevents large dust such as lint to the centrifugal fan 5 from being sucked into the centrifugal fan 5 and the air conditioning device 4. Further, since the pre-filter 6 rectifies the suction airflow to the centrifugal fan 5, the suction resistance of the centrifugal fan 5 is reduced and the noise of the centrifugal fan 5 is reduced.

(11) Further, since the fan suction port 53 facing the front surface is covered with the flat front panel 3, the noise of the fan leaking to the front surface is reduced.
(12) Since the air purifying filters as the air conditioning devices 4 are dispersedly arranged at a plurality of positions, that is, in the case of this embodiment, the air purifying filters are arranged on the left and right side in the main body housing 1. Since it is distributed at the positions, the air passage area of the air purification filter can be increased, and the air purification efficiency can be improved.

  (13) Since the air conditioning device 4 includes an air purification filter having both a dust collection filter and a deodorizing filter, a thin air cleaner can be provided. Therefore, the use of the air purifier can be expanded and the demand can be increased.

(14) Since a turbo fan is used as the centrifugal fan 5, the operation efficiency is increased, and the energy saving of the device can be achieved.
(Embodiment 2)
In the second embodiment, the shape of the guide member in the first embodiment is changed. As shown in the air flow diagram of FIG. 7, the guide member 9 is formed symmetrically vertically and horizontally from the indoor air inlets 8 a and 8 b toward the fan inlet 53, and the indoor air inlet 8 a, It extends linearly from the vicinity of 8b toward the fan suction port 53, and is further curved in the vicinity of the fan suction port 53 so as to go to the center of the rotating shaft 52 of the centrifugal fan 5. That is, the guide member of the second embodiment is obtained by changing the shape of the terminal end on the fan suction port 53 side in the first embodiment.

  Therefore, according to the second embodiment, since the guide member 9 can be shaped to fit the improved air flow line, the resistance of the guide member 9 itself is reduced and the noise rise is further suppressed. be able to.

(Embodiment 3)
In the third embodiment, the number of guide members 9 in the first embodiment is changed. As shown in FIG. 8, the guide member 9 according to the third embodiment is further separated by another predetermined guide member 9 at a predetermined interval on the inner side (center side) of one guide member 9 according to the first embodiment. Are arranged substantially in parallel. Therefore, the third embodiment can be configured to deflect the airflow without difficulty by using a set of two sheets as compared to a case where the airflow is changed with one plate-like member. More specifically, in order to deflect the air sucked from the indoor air suction ports 8a and 8b in a small space and guide it to the fan suction port 53, when the guide member 9 is composed of a single plate-like member, the flow is reduced. Separation vortices are likely to be formed at the part where the path expands. However, in the case of a set of two guide members 9 with an appropriate interval, the flow path can be brought close to the air flow line, so that the separation vortex can be reduced. As a result, noise can be further reduced.

(Embodiment 4)
In the fourth embodiment, the shape of the guide member according to the first embodiment is changed. As shown in FIG. 9, the guide member 9 in this embodiment is obtained by forming the flat guide member 9 in the first embodiment from a substantially streamlined blade-type blade member.

According to this embodiment, since the entire guide member 9 can be shaped to fit the improved air flow line, the resistance of the guide member 9 itself is reduced, and the increase in noise can be further suppressed. it can.
(Embodiment 5)
In the fifth embodiment, the number of guide members 9 in the second embodiment is changed. As shown in FIG. 10, the guide member 9 according to the fifth embodiment is further separated from the guide member 9 according to the second embodiment by a predetermined distance on the outer side (anti-center side). Are arranged substantially in parallel. Therefore, according to this Embodiment 5, compared with the case where an airflow is changed by one plate-shaped member, it can be set as the structure which deflects an airflow reasonably by setting it as a set of 2 sheets. More specifically, in order to deflect the air sucked from the indoor air suction ports 8a and 8b in a small space and guide it to the fan suction port 53, when the guide member 9 is composed of a single plate member, A separation vortex is likely to be formed in a portion that deflects the flow path. However, when the guide member 9 is a set of two sheets, the flow path can be brought close to the air flow line. Thereby, generation | occurrence | production of peeling vortex can be reduced and a noise can be reduced further.

(Modification)
The air conditioner according to each of the above embodiments can be modified as follows.
(1) Although the guide member 9 is formed integrally with the front panel 3, it may be formed as a separate body and attached to the front panel 3 with an adhesive or the like. In this case, the entire guide member 9 may be made of a sound absorbing material. In this way, noise generating energy near the fan inlet 53 is absorbed by the sound absorbing material forming the guide member 9. Therefore, noise generation energy released forward from the vicinity of the fan suction port 53 is absorbed by the sound absorbing material, and noise can be reduced.

  (2) The surface of the guide member 9 may be formed of a sound absorbing material. If it does in this way, while using noise, the usage-amount of a sound-absorbing material can be reduced and cost can be reduced. In addition, in order to form the surface with a sound absorbing material, a sheet-like sound absorbing material may be stretched on the surface of the guide member.

  (3) The guide member 9 may be molded integrally with the partition plate 2 without being molded integrally with the front panel 3 and resin. In this way, since the front panel 3 is formed to have a uniform thickness, it is possible to avoid a pattern due to shrinkage that can occur during the injection molding of the front panel 3. Therefore, the appearance of the front panel 3 can be made beautiful.

  (4) The indoor air inlets 8 a and 8 b are formed on the upper and lower sides between the front panel 3 and the partition plate 2, and the indoor outlet 18 is provided on the left and right side surfaces of the main body housing 1. However, it may be formed by changing the positions of the indoor air inlets 8a and 8b and the indoor outlet 18 by 90 degrees. Specifically, for example, the indoor air inlets 8a and 8b are formed on the left and right sides between the front panel 3 and the partition plate 2, and the indoor outlet 18 is formed on the upper and lower surfaces of the main body housing 1. It may be a thing.

  (5) In each of the above embodiments, a so-called air purifier in which the air conditioning device 4 is an air purifying filter has been described as an example, but it may be configured as another air conditioner. For example, it can be configured as an indoor unit of an air conditioner using a heat exchanger for cooling and heating instead of the air purification filter.

  (6) Although the air conditioner according to each of the above embodiments is described as a floor-standing type, it can be a wall-hanging type air conditioner. In this case, the depth dimension of the electrical component storage portion 12 below the main body housing 1 is made the same as that of the thin portion 11, or the electrical component storage portion 12 is moved to another position and the lower end of the front panel 3. The indoor air suction port 8b formed between the lower portion and the lower end of the partition plate 2 can be formed so as to be exposed on the lower surface. Moreover, it is good also as a thin ceiling suspension type air conditioner by making the height direction of this air conditioner into a horizontal direction. These wall-hanging and ceiling-suspended air conditioners can also relieve the feeling of pressure when installed in a room by being thin.

  (7) In the above-described embodiment, the air purification filter that is the air conditioning device 4 includes both the electrostatic dust collection filter and the deodorization filter, but may include either one of the filters. . Of course, other types of dust collecting filters such as a HEPA filter may be used instead of the electrostatic dust collecting filter.

  (8) The centrifugal fan 5 is not limited to the turbo fan, and a radial fan may be used instead of the turbo fan. When the centrifugal fan 5 is a radial fan, the airflow blown out from the centrifugal fan 5 becomes an airflow with few components in the circumferential direction, so that the turbulence when the airflow enters the air adjustment device 4 is reduced. As a result, the airflow passage resistance is reduced and the noise is reduced. That is, energy saving and noise reduction of the device can be achieved.

1 is an exploded perspective view of an air conditioner according to Embodiment 1 of the present invention. It is an external appearance perspective view of the air conditioner. It is a back perspective view of the front panel of the air conditioner. It is a sectional side view of the same air conditioner. It is an air flow diagram in the suction side chamber seen from the front of the air conditioner. It is an air flow diagram in the suction side chamber seen from the front of the air conditioner as a reference example. It is an air flow diagram in the suction side chamber seen from the front of the air conditioner according to Embodiment 2. It is an air flow figure in the suction side chamber seen from the front of the air harmony machine concerning Embodiment 3. It is an air flow figure in the suction side chamber seen from the front of the air harmony machine concerning Embodiment 4. It is an air flow diagram in the suction side chamber seen from the front of the air conditioner according to Embodiment 5.

Explanation of symbols

  Sc, Se ... Airflow, 1 ... Body housing, 2 ... Partition plate, 3 ... Front panel, 4 ... Air conditioning device, 5 ... Centrifugal fan, 6 ... Pre-filter, 7 ... Suction side chamber, 8a, 8b ... Indoor Air inlet, 9 ... guide member, 18 ... indoor outlet, 22 ... bell mouth, 52 ... rotating shaft, 53 ... fan inlet.

Claims (16)

Front body with a substantially square front view, front partition, a partition plate attached to the front of the main body, and the rotation axis in the front-rear direction so that the fan suction port is located at the front center. As a centrifugal fan disposed in the main body casing, a flat front panel disposed to face the partition plate at a predetermined interval on the front side of the partition plate, and a periphery between the front panel and the partition plate The indoor air suction port formed on the two opposite sides of the front, the suction side chamber formed in the entire space between the front panel and the partition plate and communicating with the indoor air suction port, and the radial direction of the centrifugal fan in the main body housing An air conditioning device that adjusts at least one of the temperature, humidity, and cleanliness of the indoor air disposed on the outlet side, and a downstream side of the air conditioning device in a direction substantially orthogonal to the indoor air intake port Arranged air conditioning And a chamber outlet for blowing into the room the air,
A bell mouth is attached to the central portion of the partition plate so as to face the fan suction port of the centrifugal fan, and the air flow flowing from each indoor air suction port is sent to the suction side chamber at the center of the indoor air suction port. A guide member is provided that forms three passages that are divided into three parts, an airflow flowing in from the section and an airflow flowing in from both side parts of the indoor air suction port, and guiding the fan suction port;
The passage for guiding the airflow flowing in from the central portion is formed so as to be substantially straight toward the fan suction port and the passage width is enlarged, and on the other hand, the passage for guiding the airflow flowing in from both side portions Is an air conditioner characterized in that it is guided to both sides of the fan inlet and is formed so as to reduce the passage width . The guide member is a linear shape formed symmetrically vertically and horizontally from both indoor air inlets to the fan inlet, and is composed of an inclined piece extending in a direction inclined with respect to the indoor air inlet. The air conditioner according to claim 1 . The guide members are formed symmetrically vertically and horizontally from both indoor air inlets to the fan inlet, and are linear from the vicinity of the indoor air inlet to the fan inlet. 2. The air conditioner according to claim 1 , wherein the air conditioner is formed in a curved shape so as to extend in a direction inclined with respect to the fan and further toward a center of a rotation axis of the fan in the vicinity of the fan suction port. Wherein each guide member is an air conditioner according to claim 2 or 3 further characterized in that a plate-like member of the gap dimension substantially the same width dimension between the front panel and the partition plate. 5. The air conditioner according to claim 4 , wherein each guide member includes a set of two plate-like members spaced at a predetermined interval. The air conditioner according to claim 2 or 3 , wherein each guide member comprises a substantially streamlined wing-shaped blade member. The air conditioner according to any one of claims 1 to 6 , wherein each guide member is formed integrally with a front panel. The air conditioner according to any one of claims 1 to 6 , wherein each guide member is formed integrally with a partition plate. The air conditioner according to any one of claims 1 to 8 , wherein each guide member is entirely formed of a sound absorbing material. The air conditioner according to any one of claims 1 to 8 , wherein a surface of each guide member is formed of a sound absorbing material. The indoor air inlet is formed on the upper and lower sides of the space between the front panel and the partition plate, and the air conditioning device is disposed on the left and right radial outlets of the centrifugal fan. The air conditioner according to any one of claims 1 to 10 , wherein the indoor outlet is provided on a left and right side portion of the main body casing. The air conditioner according to any one of claims 1 to 11 , wherein a pre-filter is attached to a front side of a bell mouth formed on the partition plate. The air conditioner according to any one of claims 1 to 12 , wherein the air conditioning device includes at least one of a dust collection filter and a deodorization filter. The air conditioner according to any one of claims 1 to 13 , wherein the air conditioning device includes a heat exchanger that cools or heats at least indoor air. The air conditioner according to any one of claims 1 to 14 , wherein the centrifugal fan is a turbo fan. The air conditioner according to any one of claims 1 to 14 , wherein the centrifugal fan is a radial fan.

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