JPH0222578Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a ceiling-mounted air conditioner, such as a ceiling-suspended type or a ceiling-embedded type, and particularly relates to a structure for preventing dew condensation on the outer wall of the air conditioner.

(Prior Art) Conventionally, this type of ceiling-mounted air conditioner has been equipped with a heat exchanger and a heat exchanger in the ventilation passage that communicates the suction port and the air outlet, as disclosed in Japanese Utility Model Application Publication No. 59-178525. It is well known that a blower is placed downstream of each blower, and when the blower operates, the indoor air sucked in from the suction port is heat exchanged with a heat exchanger and then blown into the room from the blowout port. There is.

(Problem to be solved by the invention) However, in the specification and drawings of Utility Application No. 114269/1987, the present applicant previously described the inlet and outlet as such a ceiling-mounted air conditioner. A heat exchanger and a blower are disposed downstream of the heat exchanger in a communicating ventilation path, and a support member for supporting the blower is provided on an outer shell wall that partitions the ventilation path, and the blower is slidable along the support member. The blower is attached to a large and fixable mounting member, and the mounting member with the blower attached can be inserted and removed from an opening formed in the outer shell wall, thereby facilitating maintenance of the blower. I'm proposing something.

However, in the proposed example, both end surfaces in the longitudinal direction of the support member are fixed to the side surface of the outer shell wall by welding or screwing in order to ensure support rigidity.
Either the supporting member and the side surface of the outer shell wall are in direct metal contact, or a heat insulating material is usually pasted on the inner wall of the side surface of the outer shell wall, but when this heat insulating material is collapsed, both of the above are substantially metal. It has become a contact. For this reason,
During cooling operation, when the air blower is cooled by the air cooled by the heat exchanger and becomes low temperature, the fixing part of the support member or the screw head on the side surface of the outer shell wall that is in contact with the room air and the bottom surface of the outer shell wall. was lower than room temperature, and this temperature difference could cause dew condensation in these parts, so there was room for improvement.

The present invention has been developed to solve the above-mentioned problems, and its purpose is to prevent heat conduction from the support member to the side surface of the outer shell wall, thereby reducing the heat transfer to the outer shell wall. The objective is to reliably prevent condensation from forming on the side or bottom of the shell wall or on the screw head.

(Means for Solving the Problems) In order to achieve the above object, the solving means of the present invention, as shown in FIGS. In a ceiling-mounted air conditioner in which a heat exchanger 7 and a blower 8 are arranged in a communicating ventilation passage 6 and a blower 8 is arranged downstream thereof, a bottom frame 11 of an outer shell wall 1 that partitions the ventilation passage 6.
It is assumed that a support member 12 for supporting the blower 8 is provided on the bottom wall. Then, the support member 12
and the side wall 14 of the bottom frame 11 are fixed together with a fastener 18 via a connecting member 17 made of a material with low thermal conductivity interposed between the two. Furthermore, a hole 19b for avoiding contact with the fastener 18 is provided in a portion of the side frame 19 that is joined to the outer surface of the side wall 14 of the bottom frame 11, corresponding to the connecting member 17, and the hole 19b A sealing material 20 covering the more exposed fasteners 18 is interposed between the back surface of the side frame 19 and the outer surface of the side wall 14 of the bottom frame 11.

(Function) With the above configuration, in the present invention, during the cooling operation of the air conditioner, the blower 8 downstream of the heat exchanger 7 becomes low temperature, and this influence cools the support member 12. Heat conduction to the bottom frame side wall 14 of the wall 1 is largely blocked by a connecting member 17 made of a material with low thermal conductivity interposed therebetween, and is effected only by the fasteners 18. And the fastener 18 is attached to the side frame 1
Since contact with 9 is avoided, conduction to the side frame 19 is prevented. Therefore, the portion of the bottom frame side wall 14 corresponding to the support member 12 and the side frame 19 do not become particularly low temperature.
This means that no condensation occurs due to the temperature difference from room temperature.

On the other hand, since the fastener 18 is covered with a sealing material 20 interposed between the back surface of the side frame 19 and the outer surface of the bottom frame side wall 14, condensation does not occur on the fastener 18 to be cooled. However, it is not exposed indoors.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

In Figure 1, ceiling-embedded air conditioner A
A suction port 12 and a blowout port 3 are opened on both left and right sides of the square box-shaped outer shell wall 1, and these are communicated with the interior of the room via a suction duct 4 and a blowout duct 5 that are connected to each other. . A ventilation passage 6 is formed in the outer shell wall 1 and communicates between the suction port 2 and the air outlet 3.
A heat exchanger 7 is arranged near the suction port 2, and a blower 8 is arranged downstream of the heat exchanger 7 near the air outlet 3. The blower 8 has a motor 9 that drives it.
are combined into a unit. A mounting member 10 is attached to the bottom of the blower 8 and the motor 9, and the mounting member 10 is slidable back and forth and fixable on a support member 12 fixed to the bottom frame 11 of the outer shell wall 1. is supported by Moreover, the blower 8 has its discharge port 8a.
is fixed to another mounting member 13 arranged so as to cross the ventilation path 6, and this mounting member 13 is similarly slidably and fixedly supported on the support member 12. and the bottom frame 1
A cutout is formed in the side wall 14 of the blower 1 so as to correspond to an area where the blower 8 is installed.

As shown in FIGS. 2 to 4, the support member 12 has both left and right ends bent in an inverted L shape when viewed from the inlet/outlet 14a, and the blower 8 and motor are connected to each other via the mounting member 10. A pair of upwardly protruding support parts 15, 15 for receiving and supporting the support part 9, and rib-like plate parts 16, 16 fixed to both front and rear ends of each support part 15 and each having a pair of screw holes 16a, 16a. It becomes. In addition, the support member 12
is such that the dimension in the front-rear direction when viewed from the inlet/outlet 14a is a predetermined dimension larger than the dimension in the front-rear direction of the bottom wall of the bottom frame 11 so that a gap is formed between the plate portion 16 and the inner surface of the side wall 14 of the bottom frame 11. On the other hand, a pair of holes 14b, 14b are bored in the side wall 14 of the bottom frame 11 near both the left and right sides of the inlet/outlet 14a, and a screw hole 14c is further provided at an outer position thereof.
is formed.

In the gap formed between the support part 15 (plate part 16) of the support member 12 and the inner surface of the side wall 14 of the bottom frame 11, a rectangular parallelepiped connection made of a material with low thermal conductivity such as synthetic resin is provided. A member 17 is interposed. This connecting member 17 has a pair of insertion holes 17 that match each screw hole 16a of the plate part 16 and each hole 14b of the side wall 14 of the bottom frame 11 in the interposed state.
a, 17a are provided through each hole 16a,
14b and 17a are aligned, a fastener 18 such as a screw is inserted into the hole 14b of the bottom frame 11 in a skewer shape and screwed into the screw hole 16a of the plate part 16. The three parties are fixed.

Further, a side frame 19 constituting the outer shell wall 1 is removably joined to the outer surface of the side wall 14 of the bottom frame 11. This side frame 19
A screw hole 19a through which a screw 22 for joining the side frame 19 to the side wall 14 of the bottom frame 11 is inserted is formed to correspond to the screw hole 14c of the side wall 14 of the bottom frame 11, and Holes 19b are provided at portions corresponding to the respective connecting members 17 to avoid contact with the fasteners 18, 18. Further, on the back surface of the side frame 19, the fasteners 18, 18 which are interposed between the back surface and the outer surface of the side wall 14 of the bottom frame 11 in the joined state of the side frame 19 and exposed from the hole 19b are covered. A sealing material 20 is attached. In addition, in the figure, 21 is a heat insulating material affixed to the entire inner surface of the bottom frame 11.

According to the above configuration, most of the heat conduction between the supporting member 12 and the side wall 14 of the bottom frame 11 is blocked by the connecting member 17 made of a material with low thermal conductivity and interposed between the supporting member 12 and the side wall 14 of the bottom frame 11. Therefore, even if the heat insulating material 21 is crushed, it will not have any effect, and even if the blower 8 is cooled by the air heat exchanged by the heat exchanger 7 during cooling operation of the air conditioner A, and the temperature becomes low. Side wall 14 of bottom frame 11
The part corresponding to the support member 12 (plate part 16) does not become particularly low temperature, and therefore the side frame 1 joined to the side wall 14 of the bottom frame 11
9. No condensation occurs. In addition, fastener 1
8, 18 to the bottom frame 11 is negligibly small.

Further, the head of the fastener 18 (screw) for fixing the supporting member 12, the connecting member 17, and the side wall 14 of the bottom frame 11 is located in the hole 19b of the side frame 19, and Since contact with the frame 19 is avoided and it is covered with a sealing material 20 so as not to be exposed indoors, the temperature influence of the support member 12 is prevented from reaching the side frame 19 via the fasteners 18. At the same time, condensation on the fastener 18 can be prevented from being exposed indoors.

(Effect of the invention) As explained above, according to the ceiling-mounted air conditioner of the invention, a material with low thermal conductivity is formed between the support member that supports the blower and the side wall of the bottom frame of the outer shell wall. Since the connecting member is interposed and the fasteners that fix these three parts are prevented from coming into contact with the side frame, even if the blower is cooled during cooling operation, the side walls of the bottom frame and the bottom surface of the bottom frame will not be cooled. Therefore, no condensation occurs on the bottom surfaces of the side frames or the bottom frame. Furthermore, since the fasteners are covered with a sealing material, it is possible to prevent the condensation formed on the fasteners from being exposed indoors, thereby effectively preventing the occurrence of condensation on the outside of the ceiling-mounted air conditioner. It is something.

[Brief explanation of the drawing]

1 to 4 show embodiments of the present invention,
Figure 1 is a front view of the air conditioner with the side frame removed, Figure 2 is a cross-sectional plan view of the air conditioner with the cooling device removed, and Figure 3 is the B in Figure 2.
FIG. 4 is an enlarged cross-sectional plan view of the main part, and FIG. 4 is an exploded perspective view of the main part. 1...Outer shell wall, 2...Suction port, 3...Blowout port,
6...Ventilation path, 7...Heat exchanger, 8...Blower,
11... Bottom frame, 12... Support member, 14
... side wall, 17 ... connection member, 18 ... fastener,
19... Side frame, 19b... Hole, 20...
...Sealing material.

Claims (1)

[Scope of utility model registration request] In a ceiling-mounted air conditioner in which a heat exchanger 7 and a blower 8 are arranged in a ventilation passage 6 communicating between an inlet 2 and an outlet 3, and a blower 8 is disposed downstream of the heat exchanger 7, A support member 12 for supporting the blower 8 is provided on the bottom wall of the bottom frame 11, and the support member 12 has a connecting member 17 made of a material with low thermal conductivity interposed between the side walls 14 of the bottom frame 11. The fasteners 18 are attached to a portion of the side frame 19 corresponding to the connecting member 17 that is joined to the outer surface of the side wall 14 of the bottom frame 11.
A hole 19b is formed to avoid contact with the fastener 18, and a sealing material 20 is interposed between the back surface of the side frame 19 and the outer surface of the side wall 14 of the bottom frame 11 to cover the fastener 18 exposed from the hole 19b. A ceiling-mounted air conditioner characterized by: