JPS623612Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a ceiling-mounted air conditioner with a built-in heater.

As shown in Fig. 1, a conventional ceiling-mounted air conditioner has a top-blowing blower 1 housed in the center of the bottom, and
A pair of heat exchangers 3a and 3b are installed upright on both sides of the discharge port 2 of the blower, heaters 4a and 4b are installed in parallel on the leeward side of both heat exchangers, and the ventilation flow of the heaters is guided. A main body 6 includes blow-off passages 5a and 5b, and a suction port 7 below the blower 1, facing the blower 1.
and a decorative panel 9 provided with air outlets 8a and 8b located on both sides of the air outlet and communicating with the air outlet passages 5a and 5b to supply air into the room.When heating by heat pump operation, the heat exchanger Electric heaters 4a and 4b are used to reheat the heating capacity due to insufficient heating capacity caused by heaters 3a and 3b. 10 is the ceiling.

However, since the heaters 4a and 4b are located in the ventilation path, they create ventilation resistance and are heated to a higher temperature than the heat exchangers 3a and 3b during heating, so they are installed on the leeward side of the heat exchanger. Because of this, dew condenses in the cold air flow of the heat exchangers 3a and 3b, which serve as evaporators during cooling, resulting in dew falling into the room and causing poor insulation. In addition, heaters 4a and 4b
Since two are required, the number of parts increases, and since they are arranged in a narrow and limited ventilation path, they have the disadvantage of poor assembly workability and service inspection workability.

This proposal aims to eliminate such shortcomings,
The heater is attached to the top wall of the discharge chamber sandwiched between a pair of heat exchangers by a mounting member that also serves as a reflector.

With this configuration, the heaters can be integrated into one unit, there is no loss in ventilation resistance, and condensation on the heater can be prevented.

Embodiments will be described below based on FIGS. 2 to 4. Components that are the same as those in FIG. 1 are designated by the same reference numerals and their explanation will be omitted. 11 is a sheet metal mounting member such as an iron plate fixed to the inner surface of the top wall 13 of the discharge chamber 12 facing the outlet 2 of the blower 1; 14 is an L-shaped fitting welded to both ends of the member; and 4 is attached to the fitting. This is a pipe-type electric heater that is mounted across the pipe.

Therefore, when the discharged airflow from the discharge port 2 is distributed to both sides and reaches the heat exchangers 3a and 3b, the heat of the heater 4 is uniformly heated by the radiant heat reflected by the mounting member 11, and the airflow of the mounting member 11 is uniformly heated. The temperature rise of the ceiling wall 13 can be suppressed by the reflection effect.

In addition, since the electric heater 4 is located at the branch point where the discharge airflow is distributed to both sides, efficient cooling/heating operation can be performed without ventilation resistance, and even during cooling, it comes into contact with the discharged airflow that has not exchanged heat, so no condensation occurs. Moreover, the electric heaters 4 are combined into one,
Since it is disposed within the discharge chamber 12 between the large rooms, service inspection can be easily performed by removing the blower 1.

Note that since the airflow discharged from the discharge port 2 is biased toward the nose 16 side of the blower 1 rather than the scroll 15 side, it is preferable to arrange the discharge port 2 closer to the one heat exchanger 3b side.

Since the present invention is configured as described above, it is possible to uniformly heat the air with a single heater due to the reflection plate action of the mounting member, and also eliminate the conventional drawback that the heater acts as ventilation resistance and reduces ventilation efficiency. Electric heater service inspection work is easy, etc.
It is useful in practice.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a ceiling-mounted air conditioner showing a conventional example, Fig. 2 is a sectional view of a ceiling-mounted air conditioner showing an embodiment of the present invention, and Fig. 3 is a sectional view of a heater according to an embodiment of the present invention. The bottom view and FIG. 4 are side views of the same. 1...Blower, 2...Discharge port, 3a, 3b...
Heat exchanger, 4... Heater, 5a, 5b... Blowout passage, 6... Main body, 7... Suction port, 8a, 8b
... Air outlet, 9 ... Decorative panel, 10 ... Ceiling,
11...Mounting member, 12...Discharge chamber, 1
3...Ceiling wall.

Claims (1)

[Scope of utility model registration request] A main body installed in the ceiling space, a decorative panel attached to the underside of the main body and having an inlet in the center and outlet on both sides of the inlet, and an outlet of a top-blowing blower located above the inlet. The top of the discharge chamber sandwiched between the pair of heat exchangers includes a pair of heat exchangers erected on both sides of the outlet and a blowout passage that guides the airflow from the heat exchanger to the blowout port. A ceiling-embedded air conditioner characterized by a heater attached to the wall using a mounting member that also serves as a reflector.