JP2000227231A - Ceiling-buried-type air-conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To guide air whose temperature has increased due to heat being generated from a fan motor from an exhaust heat port to a heat exchanger through a turbo fan by forming bulged part being bulged spirally downward on the upper surface of the turbo fan and forming the exhaust heat port between the tip and the upper surface of the turbo fan. SOLUTION: A bulged part 11 whose section is in nearly recessed shape being inflated spirally downward is formed on an upper surface 8 of a turbo fan 7, an exhaust heat port 10 is formed between the tip of the bulged part 11 and the upper surface of the turbo fan 7, and air whose temperature is increased by heat being generated from a fan motor 6 is guided from the exhaust heat port 10 to a heat exchanger via the turbo fan 7. Also, the bulged part 11 is formed whose section is in a nearly dog-legged shape where a rear part is inclined gently for a front part in the rotary direction of the turbo fan 7, thus efficiently passing air flow (a) whose temperature is increased by heat being generated by the fan motor 6 through the bulged part 11 and smoothing feeding it to the exhaust heat port 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-ceiling type air conditioner, and more particularly, to an air conditioner whose temperature has risen due to the heat generated by a fan motor, and which does not collide with intake air, and is provided with a turbocharger through a heat exhaust port. The present invention relates to a structure that can be smoothly guided to a heat exchanger via a fan.

[0002]

2. Description of the Related Art As shown in FIG. 1 and FIG. 5A, for example, a conventional ceiling-mounted air conditioner has a suction opening at the center at a bottom opening of a case body 1 embedded in a ceiling. A decorative panel 2 having an opening 3 and having an outlet 4 around it is mounted, and fans arranged vertically above the air outlet 4 facing the air outlet 4 connecting the inlet 3 and the outlet 4. A blower 5 composed of a motor 6 and a turbo fan 7 and a heat exchanger 9 are provided, and exhaust air for guiding the air whose temperature has increased due to the heat generated by the fan motor to the heat exchanger 9 is provided on the upper surface 8 of the turbo fan 7. The configuration was such that a hot hole A was provided.

[0003] However, when the temperature rises, the exhaust holes A
Since the air flow a passing through the air inlet a collides with the suction air flow b sucked from the suction port 3, there is a problem that a turbulent flow is generated at the location and the blowing efficiency is reduced. . Therefore, as shown in FIG. 5B, by providing a guide member B facing the heat exhaust hole A, the air flow a passing through the heat exhaust hole A and the suction air flow b do not collide. However, there is a problem that the provision of the guide member B made of a separate member complicates the structure and is disadvantageous in terms of cost.

[0004]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, in the present invention, the air whose temperature has risen due to the heat generated by the fan motor does not collide with the intake air, and heat is exchanged from the exhaust heat port through the turbo fan. It is an object of the present invention to provide a ceiling-mounted air conditioner that can be smoothly guided to a vessel.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a makeup having a suction opening at the center and an air outlet around the opening at the bottom opening of the case body embedded in the ceiling. A panel is mounted, and a blower comprising a fan motor and a turbo fan arranged above and below with the air outlet facing the air outlet, and a heat exchanger provided in an air passage connecting the inlet and the air outlet. Forming, on the upper surface of the turbofan, a bulged portion having a substantially concave cross-section bulging downward in a spiral shape, and forming a heat exhaust port between the tip of the bulged portion and the upper surface of the turbofan. The configuration is such that air whose temperature has increased due to the heat generated by the fan motor is guided from the exhaust heat port to the heat exchanger via the turbo fan.

[0006] Further, a plurality of the bulging portions and the heat exhaust ports are provided.

[0007] The bulging portion is formed in a substantially V-shaped cross section in which a rear portion is gently inclined with respect to a front portion in the rotation direction of the turbofan.

[0008] The bulging portion is formed by expanding the heat-dissipating port side, which is the tip of the bulging portion.

The tip of the bulging portion is configured such that the tip side in the rotation direction of the turbofan is inclined so as to be tapered with respect to the circumferential shape.

[0010] In addition, an auxiliary bulging portion having a substantially concave cross section, which bulges upward, is formed on the upper surface of the turbo fan so as to be continuous with the bulging portion. And an auxiliary heat exhaust port that is continuous with the heat exhaust port.

Further, the auxiliary bulging portion has a structure in which a front portion is gently inclined with respect to a rear portion in the rotation direction of the turbofan, and is formed in a substantially rectangular shape in cross section.

Further, at the center of the upper surface of the turbo fan,
It is configured such that a plurality of ribs facing the heat exhaust port and the auxiliary heat exhaust port are formed.

Further, the ribs are formed radially.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below as examples based on the attached drawings. FIG. 1 and FIG.
As shown in FIG. 2A, FIG. 2B, FIG. 3 and FIG. 4, reference numeral 1 denotes a case body 1, which is buried in a ceiling. A decorative panel 5 having an inlet 3 and an outlet 4 around the outlet 5 is provided in an air passage connecting the inlet 3 and the outlet 4, and is arranged up and down with the outlet 4 facing. A blower 9 comprising a fan motor 6 and a turbo fan 7 is a heat exchanger.

On the upper surface 8 of the turbo fan 7, there is formed a bulging portion 11 having a substantially concave cross section which spirally bulges downward.
A heat exhaust port 10 is formed between the tip of the bulging portion 11 and the upper surface of the turbo fan 7, and air whose temperature has increased due to heat generated by the fan motor 6 passes through the heat exhaust port 10 through the turbo fan 7. The configuration is such that the heat is guided to the heat exchanger 9, whereby it is not necessary to provide the guide member B which is a separate member as in the above-described related art, and the heat generated by the fan motor 6 is reduced. As a result, the air flow a whose temperature has risen does not collide with the suction air flow sucked in from the suction port 3, so that the air blowing efficiency does not decrease.

Further, by providing the plurality of bulging portions 11 and the plurality of heat exhaust ports 10, the air flow a whose temperature has increased due to the heat generated by the fan motor 6 is transferred from the heat exhaust ports 10 to the heat exchanger 9. It has a configuration that can be guided efficiently toward.

The bulging portion 11 has a rear portion 11b formed in a substantially V-shaped cross section in which the rear portion 11b is gently inclined with respect to the front portion in the rotation direction of the turbo fan 7, so that the heat generated by the fan motor 6 increases the temperature. The raised airflow a is transmitted to the bulging portion.
11 is configured to be able to efficiently pass therethrough so as to be smoothly delivered to the heat exhaust port 10.

Further, since the bulging portion 11 is formed by expanding the heat discharging port 10 which is the tip thereof, the air flow a whose temperature has increased due to the heat generated by the fan motor 6 can be more smoothly. It is configured to be able to pass through.

The tip 11a of the bulging portion 11 is formed by inclining the tip of the turbo fan 7 in the rotational direction so as to be tapered with respect to the circumferential shape as shown by an angle で in FIG.
The configuration is such that the distribution of the air flow a in the exhaust heat port 10 can be made uniform, and the efficiency of exhaust heat can be improved.

Also, on the upper surface of the turbo fan 7, FIG.
As shown in FIG. 4B and FIG. 4, an auxiliary bulging portion 13 bulging upward and having a substantially concave cross section is formed continuously with the bulging portion 11, and the auxiliary bulging portion 13 is formed. And an auxiliary heat exhaust port 12 connected to the heat exhaust port 10 is formed between the upper surface of the turbo fan 7 and the air flow a whose temperature is increased by the heat generated by the fan motor 6. ,
The heat can be passed more smoothly from the heat exhaust port 10 and the auxiliary heat exhaust port 12 to the heat exchanger 9, so that the heat exhaust efficiency can be further improved.

The auxiliary bulging portion 13 is formed so as to have a substantially elliptical cross section in which a front portion 13a is gently inclined with respect to the rear portion in the rotation direction of the turbofan 7, so that the fan motor 6 generates heat. The air flow a whose temperature has risen is sent out from the bulging portion 11 and then can be smoothly guided toward the heat exchanger 9.

Further, by forming a plurality of ribs 14 facing the heat exhaust port 10 and the auxiliary heat exhaust port 12 in the center of the upper surface of the turbo fan 7, the rotation of the turbo fan 7 The ribs 14 enable the temperature-raised air flow a to be forcibly sent out from the heat exhaust port 10 and the auxiliary heat exhaust port 12, so that the air stream a can be guided more smoothly toward the heat exchanger 9. It has a configuration.

Further, the ribs 14 are formed radially so that the heated air flow a can be forcibly sent out from the heat exhaust port 10 and the auxiliary heat exhaust port 12 strongly. .

With the above configuration, as shown in FIG. 1, FIG. 2 (A) and FIG. 2 (B), FIG. 3 and FIG. A swollen bulging portion 11 having a substantially concave cross section is formed, and a heat exhaust port 10 is formed between the tip of the bulging portion 11 and the upper surface of the turbo fan 7. The air whose temperature has risen is guided from the exhaust heat port 10 to the heat exchanger 9 via the turbo fan 7 or an auxiliary bulging portion 13 having a substantially concave cross-section and bulging upward is provided. The bulging part 11
And the auxiliary heat exhaust port 12 continuous with the heat exhaust port 10 is formed between the auxiliary bulging portion 13 and the upper surface of the turbo fan 7. As described above, it is not necessary to provide the guide member B which is a separate member, and the air flow a whose temperature has increased due to the heat generated by the fan motor 6 does not collide with the suction air flow sucked from the suction port 3. The air conditioner is a ceiling-mounted type air conditioner in which the blowing efficiency is not reduced.

[0025]

As described above, according to the present invention, the air whose temperature has been raised by the heat generated by the fan motor can be smoothly guided from the exhaust port to the heat exchanger via the turbofan without colliding with the intake air. It becomes a ceiling embedded type air conditioner.

[Brief description of the drawings]

FIG. 1 is a sectional view of a ceiling-mounted air conditioner according to the present invention and a conventional example.

FIGS. 2A and 2B are explanatory views of a ceiling-embedded air conditioner according to the present invention, in which FIG. 2A is a cross-sectional view of a main part showing an example, and FIG. 2B is a cross-sectional view of a main part showing another example.

FIG. 3 is a top view corresponding to FIG. 2A of the turbo fan of the ceiling-mounted air conditioner according to the present invention.

FIG. 4 is a main part top view corresponding to FIG. 2B of the turbo fan of the ceiling-embedded air conditioner according to the present invention.

5A and 5B are cross-sectional views of a main part of a conventional ceiling-mounted air conditioner, in which FIG. 5A shows an example, and FIG. 5B shows another example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case main body 2 Decorative panel 3 Suction port 4 Blow-out port 5 Blower 6 Fan motor 7 Turbo fan 8 Upper surface of turbo fan 9 Heat exchanger 10 Heat discharge port 11 Swelling part 11a Tip of swelling part 11b Rear part of swelling part 12 Auxiliary heat exhaust port 13 Auxiliary bulge 13a Front of auxiliary bulge 14 Rib

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (Reference) F24F 13/32 F24F 1/02 316 1/02 316 1/00 426 1/02 436

Claims (9)

[Claims] 1. A decorative panel having a suction port in the center and a blow-out port around the center is mounted on a bottom opening of a case body buried in a ceiling, and air connecting the suction port and the blow-out port. In a passage, a blower comprising a fan motor and a turbo fan arranged vertically above and below the air outlet, and a heat exchanger are provided.On the upper surface of the turbo fan, spirally downward. A bulging portion having a substantially concave cross section is formed, and a heat discharging port is formed between the tip of the bulging portion and the upper surface of the turbo fan. An embedded ceiling type air conditioner, wherein a heat port is guided to the heat exchanger via the turbo fan. 2. The ceiling-embedded air conditioner according to claim 1, wherein a plurality of the bulging portions and the heat exhaust ports are provided. 3. The bulging portion is formed in a substantially V-shaped cross section with a rear portion gently inclined with respect to a front portion in the rotation direction of the turbofan.
2. The ceiling-mounted air conditioner according to 1. 4. The ceiling-embedded type according to claim 1, wherein the bulging portion is formed by expanding the heat exhaust port side, which is a tip thereof. Air conditioner. 5. The ceiling pad according to claim 1, wherein a tip of the bulging portion has a tip end in a rotational direction of the turbo fan inclined so as to be tapered with respect to a circumferential shape. Built-in air conditioner. 6. An auxiliary bulging portion having a substantially concave cross section, which is bulged upward, is formed on an upper surface of the turbo fan so as to be continuous with the bulging portion, and the auxiliary bulging portion and the turbo fan are formed. The ceiling heat sink according to any one of claims 1, 2, 3, 4, and 5, wherein an auxiliary heat discharge port that is continuous with the heat discharge port is formed between upper surfaces of the ceiling heat sink. Type air conditioner. 7. The ceiling pad according to claim 6, wherein the auxiliary bulging portion is formed in a substantially V-shaped cross section in which a front portion is gently inclined with respect to a rear portion in the rotation direction of the turbofan. Built-in air conditioner. 8. The ceiling according to claim 1, wherein a plurality of ribs facing the heat exhaust port and the auxiliary heat exhaust port are formed in a central portion of an upper surface of the turbo fan. Embedded air conditioner. 9. The ceiling-embedded air conditioner according to claim 1, wherein the ribs are formed radially.