JPH0620014Y2 - Ceiling embedded air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an improvement of an air conditioner installed inside a ceiling.

[Conventional technology]

FIG. 3 is a sectional view showing a conventional air conditioner disclosed in, for example, Japanese Utility Model Laid-Open No. 58-81414, in which (20) is a box-shaped main body installed in the ceiling (A). A mounting piece (21) is provided on both side plates of the main body (20). (22) is a hanging bolt embedded in the ceiling slab (B), which is inserted into the mounting piece (21) and the nut (23) is tightened to fix the ceiling (A) of the main body (20). Adjust the hanging height inside. (2
4) is an air blower consisting of Shirotsuko Juan, which is locked to the upper side of the main body (20) via a blower base (25), and its blowing surface (24a) is on the upper wall (20a) of the main body (20). A predetermined angle (θ
₁ ) and the scroll part (24
It is arranged so that b) is located inside the main body (1).
(26) is a chemical cut plate attached to one end of the blower stand (25), which divides the upper part of the main body (1) into a suction side passage (27) and a blowout side passage (28) together with the blower stand (25). ing. (29) is the outlet passage (28)
Side facing the blowout surface (24a) of the blower (24) and the mounting plate (3
The heat exchanger is locked to the main body (20) through (0), and its suction surface (29a) has a predetermined angle (θ ₂ ) with respect to the upper wall (20a) of the main body (20). . Therefore, the blower face (24) of the blower (24)
a) a predetermined angle from the suction surface (29a) of the heat exchanger (29) (θ _3),
For example, they will be arranged at an angle of 50 ° to 90 °. (31)
(32) is the hot and cold water inlet and outlet of the heat exchanger (29), (33) is a dew pan provided below the heat exchanger (29) and has an outlet (33a), and (34) is a blower stand ( 25) and the bottom of the heat exchanger (29) are shielded to prevent bypass of the air blown from the blower (24) and guide dew generated in the heat exchanger (29) to the dew tray (33). It is a shielding plate. (35) is a chamber block formed separately from the main body (20), and this chamber block is constructed as shown in FIG. In the figure, (36) is an upper block formed of foamed resin such as Styrofoam, an outer wall (37) of a predetermined height is provided at the periphery, and a through hole (38) is provided at the center, and The outer wall (3
An inner wall (39) having the same height as that of 7) is provided, and an air passage (40) is formed by the inner and outer walls (37) and (39) around the through hole (38). Further, the upper block (36) has an elongated air inlet (41) protruding upward, and the air inlet (41) communicates with the air passageway (40) on one side of the through hole (38). Communication passage
It has (42). (43) is a lower block, which is different from the upper block, and is formed by sheet metal forming the air passage (40) of the upper block (36).
The air inlet (44) which is equivalent to the through hole (38) of the upper block (36) in the center, and the air outlets (45) communicating with the air passage (40) on both sides of the air inlet (44). When assembling the upper and lower blocks (36) (43), the screw holes of each block (36) (43)
By inserting the mounting screws (48) into (46) and (47), the chamber block is assembled as shown in FIG. And
This chamber block (35) seals the outlet side passageway (28) outlet formed by the chemical cut plate (26) and the main body (20) using the peripheral wall of the air inlet (41) as a guide as shown in FIG. It is mounted slidably in the vertical direction via the material (49). Therefore, the suction chamber (72) is formed in the through-hole (38) and the air inlet (44) of the chamber block (35), and the outlet side passage (2
The air blown out from 8) is the air inlet as shown by the arrow in Fig. 5.
A series of blow-out chambers (73) reaching the (41), the communication passage (42), each air passage (40), and the air outlet (45) are formed. (50) is a filter mounted so as to penetrate through the suction chamber (72), which is composed of a prismatic filter frame (50a) and a filter element (50b), and the suction surface side of the filter frame (50a). Is provided with a flange (60) in the shape of a thin plate that laterally extends from the periphery thereof, and the flange (60) is provided with a screw hole (61) for attaching to the lower block (43) of the chamber block (35). ) And this screw hole (61) on both sides of the mounting screw (48) for the relief notch (6
0a) is provided. Therefore, when mounting the filter (50) on the lower block (43) of the chamber block (35), install the filter frame (50a) on the air inlet of the lower block (43).
(44) and the through hole (38) of the upper block (36) and the flange (60) abuts the lower surface of the lower block (43) .In this state, the screw hole (61) of the flange (60) ) And the screw hole (47a) provided in the lower block (43), and the nut (62) also fixed to the back side of the screw, insert the mounting screw (63),
Since they can be assembled together, the lower block (43) and the flange (60) are located on the suction surface of the gap created between the suction chamber (72) of the filter (50) and the chamber block (35) and the wall. Shield by closely contacting. (51) is an exposed ceiling panel.The connecting plate (52) of the exposed ceiling panel (51) has screw holes (53) and a lower block (43) for connecting with the lower block (43) of the chamber block (35). ) And the main body (20) are provided with a relief hole (54). When connecting the ceiling exposed panel (51) to the lower block (43),
If the screws (56) are inserted into the nuts (55) fixed to the screw holes (53) and the lower block (43) and assembled together, the blowout chamber (73) and the blowout ports (4) (4) Communicate with each other. Then, as described above, after the air inlet (41) of the chamber block (35) is attached to the outlet of the outlet side passageway (28), the ceiling exposed panel (5
A long adjusting screw is attached to the relief hole (54) of 1), the screw hole (57) of the lower block (43) and the nut (58) fixed to the side of the main body (20).
Insert (59) and assemble them together. In this case, the filter (5
The flange (60) of (0) is located in the suction port (3), and the filter (50) can be removed without removing the ceiling exposure panel (51).

In the air conditioner thus configured, the filter (5
(0) When using a filter medium with a high density to improve the dust collection efficiency, it is necessary to reduce the pressure loss and increase the surface area of the filter medium to extend the life, but the suction opening area is limited. If so, you need to raise the filter (50) to achieve this.

[Problems to be solved by the invention]

However, in order to raise the filter (50), the main body (20)
The height of the building must be increased, and there is a problem that it cannot be installed in the case of a building where the height inside the ceiling is low.

The present invention has been made to solve the above problems, and to obtain a ceiling-embedded air conditioner in which a filter with high dust collection efficiency can be installed without increasing the height of the main body. With the goal.

[Means for solving problems]

In the ceiling-embedded air conditioner according to the present invention, the upper space shape of the first space formed by the upper surface of the suction chamber, the scroll lower portion of the blower, and the partition plate, and the lower surface of the suction chamber. The above object is achieved by providing a filter in which the height of the material that forms the V-shaped space is increased according to the lower space shape of the second space formed by the central portion and the central panel of the ceiling exposed panel. To do.

[Action]

In this invention, the height of the material forming the space having a V-shaped cross section is defined by the upper space shape of the first space portion and the second space portion.
According to the shape of the lower space of the space part, the filter is configured by increasing the space to increase the area of the material through which the intake air passes.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. First
In the figure, (74) is the upper surface of the suction chamber (72) in the suction side passageway (27) of the main body (20) and the scroll portion (2) of the blower (24).
The first space portion surrounded and formed by the peripheral plate (24d) of 4b) and the partition plate (26), (75) is the lower surface of the suction chamber (72) and the central panel of the exposed ceiling panel (51) ( A second space part surrounded by 51a), and (70) is a filter according to the present invention, which is a zigzag material (70h) having a V-shaped cross section.
And a flange portion (70f) protruding outward,
It is composed of a closing plate (70j) for closing both openings of the character space and supporting the material (70h), and the flange portion.
It is attached to the peripheral portion of the air inlet (44) of the lower block (43) located in the peripheral portion (71) of the air inlet of the suction chamber (72) through the mounting hole (70g) of (70f). . (70a) is a portion where the height of the material (70h) forming the V-shaped space of the filter (70) is increased according to the shape of the upper space of the first space portion (74) and is projected upward. According to the shape of the lower part of the second space portion (75), the height of the material (70h) forming the V-shaped space of the filter (70) is increased and (70b) is projected downward. It is a part.

In this embodiment, the flange portion of the both blocking plates (70j) is
(70f) Connect both ends with a connecting plate (70k), and use the above filter (70)
It is configured to surround the entire circumference of. (70e) is an outlet side notch provided in both air blocking side blocking plates (70j). (70c) is an air inlet of the filter (70), (70d) is an inlet side notch provided on both sides of the air inlet (70c) to measure the expansion of the air inflow area to the filter (70). is there.

Next, the operation will be described. The air sucked from the suction port (3) of the ceiling exposed panel (51) flows into the second space (75) from four sides to the filter (70). At this time, the lower cutout (70) provided on the side of the lower protrusion (70b) of the filter (70).
Since d) forms a part of the air inlet (70c), the suction resistance becomes small. The air sucked in from the air inlet (70c)
It passes between the filter media (70h) that form the V-shaped space, passes through the zigzag filter media (70h), reaches the outflow side of the filter media (70h), and moves upward in the V-shaped space, and the main body (20 ) To the suction side passageway (27). At this time, from the upper notch (70e) of the closing plate (70j),
Since air can flow out in the front-back direction of the drawing, the outflow resistance is also reduced. Therefore, the shape of the filter (70) is changed to the first space portion.
(74) and the second space (75) can be projected to expand the surface area of the filter medium without increasing the resistance of the air passage, even though the air passage space is compressed. , That is,
The body (20) can be made compact.

[Effect of device]

As described above, in the ceiling-embedded air conditioner according to the present invention, the upper space shape of the first space portion formed by the upper surface portion of the suction chamber, the lower scroll portion of the blower, and the partition plate, and According to the shape of the lower space of the second space formed by the lower surface of the suction chamber and the central panel of the ceiling exposed panel, a filter having a high material height for forming the V-shaped space is provided. Therefore, even if a filter having a high dust collection efficiency is installed, the air conditioner can be made compact and can be sufficiently installed even in a building having a low ceiling height.

[Brief description of drawings]

FIG. 1 is a sectional view showing a ceiling-embedded air conditioner according to an embodiment of the present invention, FIG. 2 is a side view of a filter according to an embodiment of the present invention, and FIG. 3 is a conventional air conditioner. 4 is a sectional view showing the structure of a chamber block, and FIG. 6 is an external perspective view showing the structure of the chamber block.
FIG. 7 is a perspective view showing an assembled state of the chamber block and the exposed ceiling panel, and FIG. 7 is a perspective view of a conventional filter. In these figures, (20) is the main body, (27) is the suction side passage,
(28) is the outlet passage, (26) is a partition plate, (24) is a blower, and (29)
Is a heat exchanger, (36) is an upper block, (43) is a lower block, (35) is a chamber block, (3) is an inlet, (4) is an outlet (51a) is a central panel, (51) is a ceiling. Exposed panel, (70h) material, (70f) flange portion, (70j) closing plate, (71) suction inlet (72) air inlet peripheral portion, (70) filter, (72)
Is a suction chamber, (24b) is a scroll part, (74) is a first space part, and (75) is a second space part.

Claims (1)

[Scope of utility model registration request] 1. A main body installed in a ceiling, a partition plate that divides the upper part of the main body into a suction side passage and a blowing side passage, a blower housed in the suction side passage, and a blower housed in the blow side passage. A heat exchanger, which is located in the central portion and communicates with the suction side passage, communicates with a through hole that serves as a suction chamber and the blowing side passage, and is formed around the through hole through a peripheral wall of the through hole, and with a blowing chamber. Is integrally formed with the upper block mounted on the lower part of the main body, an air inlet is formed in the central portion so as to communicate with the through hole, and the air inlet is formed around the air inlet. A chamber block having an air outlet communicating with the air passage and a lower block covering the lower surface of the upper block, a suction port communicating with the air inlet, and a central panel arranged at the center of the suction port. , The above sucking Formed around the mouth, ceiling exposed panel and a air outlet communicating with the air outlet and,
It is composed of a material whose cross-sectional shape forms a V-shaped space, and a closing plate which has an outwardly projecting flange portion, closes both openings of the V-shaped space, and supports the material. And a filter arranged at the air inlet peripheral portion of the suction chamber via the flange portion, the upper surface of the suction chamber, the scroll portion lower portion of the blower, and the partition plate. A V-shaped space is formed according to the upper space shape of the first space portion and the lower space shape of the second space portion formed by the lower surface portion of the suction chamber and the central panel of the ceiling exposed panel. A ceiling-embedded air conditioner in which the height of the filter is increased.