JPH11159789A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner having no sense of air flow and small temperature unevenness in a room by incorporating both functions of a radiation type and a convection type. SOLUTION: A radiant heat is radiated via a heat sink plate coupled to a communicating tube 1 for circulating a heating medium, and warm air warmed by a heat exchanger 3 is diffused from a plurality of pores of the sink plate. An air supply means 7 and opening area regulating means 8, 9 are controlled to rotate upper shielding plates 8 to increase a total opening area of the sink plate to increase an air supply amount when an air conditioning load is large or to rotate lower shielding plates 8 to decrease the total opening area of the sink plate to decrease the air supply amount when the conditioning load is small.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner having both radiation and convection functions, and is useful as an air conditioner installed on a wall.

[0002]

2. Description of the Related Art Conventionally, it has been considered that a more comfortable environment without airflow can be formed by a radiant method using radiant heat rather than by a convection method in which air with a controlled temperature is blown. Various air conditioners having both convection air conditioning systems have been considered. However, there is a problem that indoor airflow generated when the convection method operates causes discomfort to residents.

In order to solve this problem, for example, Japanese Utility Model 7-2
As disclosed in Japanese Patent No. 8527, there is a hot air panel heater in which a large number of small holes are provided on a radiation surface and the amount of air blown out from the small holes is adjusted. 4 and 5 show the actual fairness 7-
FIG. 4 is a cross-sectional view of a panel heater, and FIG. 5 is a perspective view of a panel main body. In the figure, reference numeral 21 denotes a panel main body, 22 denotes a plurality of small holes provided on the entire surface of the panel main body 21, 23 denotes an intake port, 24 denotes an exhaust port, and 25 denotes a heat-responsive element which performs a displacement operation by sensing the temperature of the panel main body 21. Reference numeral 26 denotes a damper that opens and closes the exhaust port 24 in conjunction with the operation of the heat responsive body 25, 27 denotes a blower, 28 denotes a heating element, and 29 denotes a guide plate.

The operation of this conventional panel heater will be described. When the temperature of the panel body 21 is low, the exhaust port 24
Is closed by a damper 26, and the air sucked in from an air inlet 23 is heated by a heating element 28 to become hot air, guided by a guide plate 29, and blown out from a small hole 22 provided on the entire front surface of the panel body 21. , Rapid heating. When the temperature of the panel main body 1 rises, the exhaust port 24 is opened to discharge warm air, and the amount of air blown out from the small holes 22 is reduced, so that heat is collected without a sense of airflow.

[0005]

However, in the above-described conventional air conditioner, when the air conditioning load is large, the blown airflow blown out from the small holes 22 provided in the panel body 21 is uncomfortable in the living area. When the air conditioning load is small,
Since the air blown out from the small holes 22 has a high temperature and a slight wind speed and rises without reaching far, there is a possibility that a large temperature unevenness occurs in the room.

SUMMARY OF THE INVENTION An object of the present invention is to provide an air conditioner having functions of both a radiation system and a convection system, which does not have a sense of airflow and has small temperature unevenness in a room.

[0007]

An air conditioner according to a first aspect of the present invention includes a flow pipe for circulating a heat medium whose temperature is controlled by a heat source unit, and a heat radiator connected to the flow pipe for radiating radiant heat into an air-conditioned room. Plate, a plurality of openings formed in the heat sink, a heat exchanger connected to the flow pipe, and the air sucked into the main body on the back side of the heat sink through the heat exchanger. An air passage for circulating the air through the opening of the radiator plate, air blowing means for forcibly circulating the air through the air passage, and an opening area adjusting means for adjusting the total opening area of the heat radiator plate; The blowing means and the opening area adjusting means are controlled so that the blowing amount is large and the total opening area is large, and when the air conditioning load is small, the blowing amount is small and the total opening area is small.

An air conditioner according to a second aspect of the present invention is the air conditioner according to the first aspect, wherein the opening area adjusting means has a plurality of rotatable shield plates, and the plurality of shield plates are provided in accordance with an air conditioning load. A predetermined shielding plate among the plates is turned to partition the air passage.

An air conditioner according to a third aspect of the present invention is the air conditioner according to the first or second aspect, wherein the air is blown so that the velocity of the hot air blown out from the opening of the heat sink does not exceed 1.0 m / s. It controls the means.

The air conditioner according to a fourth aspect of the present invention is the air conditioner according to any one of the first to third aspects, wherein the difference between the temperature of the hot air blown from the opening of the heat sink and the temperature in the air-conditioned room is 20.
The flow rate of the heat medium is controlled so as to be within the degree.

An air conditioner according to a fifth aspect of the present invention is the air conditioner according to any one of the first to fourth aspects, wherein a radiator plate is provided on a wall surface of the air conditioning room.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 to FIG. 3 are diagrams showing an air conditioner having functions of both a radiation system and a convection system in an embodiment of the present invention. FIG. 1 is a perspective view showing a part of the inside of the air conditioner, FIG. 2 is a plan view showing the internal structure of the air conditioner, and FIG. 3 is a sectional view of the air conditioner. The same reference numerals in the drawings indicate the same or corresponding parts.

In the drawing, reference numeral 1 denotes a flow pipe for a heat medium,
A heat medium such as water whose temperature is controlled by a heat source device (not shown) is circulated. Further, as shown in FIG. 2, it is formed by bending at left and right ends so as to arrange a plurality of wires in the lateral direction. 2
Is a radiator plate or a radiation panel, which is connected to the distribution pipe 1 and receives heat conduction from the distribution pipe 1 to radiate heat into the air-conditioned room. Numeral 3 denotes a convective air-conditioning heat exchanger which is connected to the heat medium flow pipe 1 to receive heat conduction and exchange heat with the blown air. Reference numeral 4 denotes a number of small holes provided in the heat radiating plate 2, and blows out the air whose temperature has been adjusted by the convective air conditioning heat exchanger 3.

Reference numeral 5 denotes an air passage formed between the heat radiating plate 2 and a housing forming the air conditioner. The convection air-conditioning heat exchanger 3 is arranged in the air passage 5. 6
Is a suction port for room air provided at a lower portion of the front surface of the apparatus main body. Reference numeral 7 denotes a blowing means such as a blower, which draws room air from the suction port 6 to flow the air to the blowing path 5 during operation, and passes the warmed air passing through the convection air conditioning heat exchanger 3 to the heat radiation plate 2. It blows out from the small hole 4 into the room. The blower 7 operates by receiving a signal from an air conditioning load sensor (not shown) such as a temperature sensor provided near the suction port 6.

In FIG. 3, reference numeral 8 denotes a rotatable shield plate, and a plurality of shield plates 8 are provided at predetermined intervals in the vertical direction. The shielding plate 8 pivots toward the heat radiating plate 2 and abuts on the flow pipe 1 to partition the air passage 5 and adjust the total area of the small holes 4 for blowing out hot air. Reference numeral 9 denotes a rotating unit for rotating the shielding plate 8, similarly to the blowing unit 7, and operates by receiving a signal from an air conditioning load sensor (not shown). The shielding plate 8 and the turning means 9 constitute an opening area adjusting means.

Next, the operation of the air conditioner will be described. FIG. 3A shows the operating state of the air conditioner when the air conditioning load is large, and FIG. 3B shows the operating state when the air conditioning load is small.

When the air-conditioning load is large, the upper shielding plate 8 is rotated to widen the total opening area of the heat radiating plate 2 and blow out warm air from the small holes 4 of the entire heat radiating plate 2. At this time, the blower 7 is used so that the hot air blown out does not become an extremely light breeze.
To increase the air flow. Therefore, the temperature unevenness in the room can be kept small.

As the room becomes warmer and the air-conditioning load decreases, the lower shielding plate 8 is sequentially rotated to close the air passage 5,
Reduce the total opening area. In addition, the total opening area is reduced and the capacity of the blower 7 is reduced so that unpleasant airflow is not generated. That is, whether the air conditioning load is large or small, control is performed so that the wind speed of the air blown out from the opening is substantially constant. If the wind speed does not exceed 1.0 m / s, the user will not feel uncomfortable airflow. Note that even when the total opening area is reduced, comfortable heat collection can be performed by radiation from the heat sink 2.

If the flow rate of the heat medium is controlled so that the difference between the temperature of the hot air blown out and the temperature of the indoor air is within 20 degrees, local stagnation of the conditioned air can be suppressed. Temperature unevenness does not occur in the air-conditioned room, and energy saving and comfortable heating can be performed.

Further, the air conditioner in this embodiment can be constituted only by the thickness of the heat exchanger 3 and the blower 7, so that it can be made thinner. It becomes easy to arrange. Therefore, space can be saved, and the interior is excellent.

[0021]

According to the first aspect of the present invention, it is possible to control the blow-off air velocity to be substantially equal regardless of whether the air-conditioning load is large or small, so that an unpleasant air flow can be generated in the air-conditioned room. In addition, there is no increase in temperature unevenness in the air-conditioned room due to an extremely small breeze.

According to the second aspect, an uncomfortable airflow is not generated, the temperature unevenness in the air-conditioned room is not increased, and the opening area of the radiator plate can be adjusted with a simple configuration.

According to the third aspect of the present invention, generation of an uncomfortable air flow can be reliably suppressed, and temperature unevenness in the air-conditioned room does not increase.

According to the fourth aspect, an uncomfortable airflow is not generated, and temperature unevenness in the air-conditioned room can be reliably suppressed.

According to the fifth aspect, an air conditioner which does not generate an uncomfortable air flow, does not increase the temperature unevenness in the air-conditioned room, and is space-saving and has excellent interior characteristics can be obtained. .

[Brief description of the drawings]

FIG. 1 is a perspective view showing a part of the inside of an air conditioner according to Embodiment 1 of the present invention.

FIG. 2 is a plan view showing the internal structure of the air conditioner according to Embodiment 1 of the present invention.

FIG. 3A is a cross-sectional view of the air-conditioning apparatus according to Embodiment 1 of the present invention when the air conditioning load is large. (B) It is sectional drawing at the time of the air conditioning load of the air conditioner of Embodiment 1 of this invention being small.

FIG. 4 is a cross-sectional view of a conventional air conditioner.

FIG. 5 is a perspective view of a panel body of a conventional air conditioner.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Distribution pipe, 2 heat sink, 3 convection heat exchanger, 4 small holes, 5 ventilation paths, 6 suction ports, 7 ventilation means, 8 shielding plates, 9 rotation means.

Claims (5)

[Claims] 1. A flow pipe for circulating a heat medium whose temperature is controlled by a heat source device, a radiator plate connected to the flow pipe and radiating radiant heat into an air conditioning room, and a plurality of openings formed in the radiator plate. A heat exchanger connected to the flow pipe, an air passage for flowing air sucked into the main body on the back side of the heat radiator plate to the opening of the heat radiator plate via the heat exchanger, Air blowing means for forcibly circulating air, and an opening area adjusting means for adjusting the total opening area of the radiator plate. When the air conditioning load is large, the air blowing amount is increased and the total opening area is increased, and the air conditioning load is reduced. An air conditioner characterized by controlling the blowing means and the opening area adjusting means so as to reduce the amount of air flow and to reduce the total opening area when the air volume is small. 2. The opening area adjusting means has a plurality of rotatable shield plates, and rotates a predetermined one of the plurality of shield plates according to an air-conditioning load to partition an air passage. The air conditioner according to claim 1, wherein 3. The air blower according to claim 1, wherein the blower is controlled so that the velocity of the warm air blown out from the opening of the heat sink does not exceed 1.0 m / s. Air conditioner. 4. The flow rate of the heat medium is controlled so that the difference between the temperature of the hot air blown from the opening of the heat radiating plate and the temperature in the air conditioning room is within 20 degrees.
An air conditioner according to claim 3. 5. The air conditioner according to claim 1, wherein the heat radiating plate is provided on a wall surface of the air conditioning room.