JP3997793B2 - Air conditioner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air conditioner, and more particularly, to a structure that smoothly starts up a heating operation.
[0002]
[Prior art]
As shown in FIG. 3, the conventional air conditioner has a front panel 31 mounted on the front surface of a base 30 to form a main body, and a suction grill 32 having a front suction port 33 formed in the front panel 31 is detachable. Provided. An upper surface suction port 34 is formed on the upper surface of the front panel 31, and an air outlet 35 having a wind direction changing plate 35 a is provided at the lower front surface. The front surface suction port 33, the upper surface suction port 34, In the air passage connecting the blower outlet 35, a heat exchanger 36 including a vertical portion 36 a and a rear inclined portion 36 b that is bent backward at the upper end of the vertical portion 36 a and inclined backward, and the heat exchanger 36. And a blower fan 37 for sending the air heat-exchanged in the room from the air outlet 35 into the room.
[0003]
During the heating operation, the heat exchanger provided in the outdoor unit operates as an evaporator that absorbs heat from outdoor air, and the heat exchanger 36 provided in the indoor unit operates as a condenser that releases heat. It has become.
[0004]
However, at the start of the heating operation, the heat exchanger 36 provided in the indoor unit requires a certain amount of time until the temperature rises, while the room that is sucked from the front suction port 33 and the upper surface suction port 34. Since the air is only heated once after passing through the heat exchanger 36, the temperature does not rise sufficiently, and it takes a predetermined time until the warm air blows out from the outlet 35. In addition, when the room temperature reaches the set temperature and the operation of the compressor provided in the outdoor unit is switched to a low speed, the temperature of the air blown out from the air outlet is also lowered, which makes the user uncomfortable. Was to give.
[0005]
[Problems to be solved by the invention]
In view of the above problems, the present invention reduces the time until warm air is blown from the outlet at the start of heating operation as much as possible, and sufficiently heats the sucked air to smoothly perform the heating operation. It aims at providing the air conditioner which can do.
[0006]
[Means for Solving the Problems]
In order to solve the above problems, the present invention provides a front suction port at the upper front of the main body, a front upper suction port at the upper front part, an upper rear suction port at the upper rear part, and a vertical wind direction at the lower front part. A front air outlet provided with a change plate and a rear air outlet provided with a vertical airflow direction change plate at the center of the lower surface are respectively provided, and an air passage connecting the suction port and the air outlet is provided at a lower portion from the center portion of the air passage. And a front air passage connecting the front suction port and the upper front suction port and the front outlet, and a rear air passage connecting the upper rear suction port and the rear outlet. A front heat exchanger and a front blower fan are provided in the front air passage, and a rear heat exchanger and a rear blower fan are provided in the rear air passage, respectively. Above, in the first state, the front air passage and the rear air passage Shields the door, while communicating with the rear air passage and the front air passage in the second state, it is provided a closing member for shielding the upper surface rear inlet,
During heating operation, the opening / closing body is set to the second state, the front air outlet is shielded by the up / down air direction change plate, and the air sucked from the front suction port and the upper front suction port Is sent into the room from the rear outlet by the rear fan through the front heat exchanger and the rear heat exchanger, while the air heated by the front heat exchanger is further The rear heat exchanger is heated again to raise the temperature.
[0007]
Further, the opening / closing body pivots upward about an axis provided at the upper end to connect the front air passage and the rear air passage, and shields the upper surface rear suction port and downwards. By rotating, the front air passage and the rear air passage are shielded.
[0008]
Further, during the cooling operation, the opening / closing body is configured to shield the front air passage and the rear air passage.
[0009]
Further, when the room temperature reaches a predetermined temperature during the heating operation, the front air passage and the rear air passage are shielded by the opening / closing body, and the heating operation is continued in any one of these. This is the configuration.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail as examples based on the attached drawings.
FIG. 1 is a cross-sectional view showing an air conditioner according to the present invention, and FIG. 2 is a cross-sectional view showing the flow of air during heating operation.
As shown in FIG. 1, the air conditioner according to the present invention comprises a base 1 having a front surface opened and a front panel 2 having a rear surface opened to constitute a main body. A front suction port 7a is formed by a plurality of horizontal rails at the front upper portion of the front panel 2, an upper front suction port 7b is formed at the upper front portion, and an upper rear suction port 8 is formed at the upper rear portion. . A front air outlet 9 having a plurality of up / down air direction changing plates 9a and left / right air direction changing plates 9b is provided at the lower front part of the main body, and a plurality of up / down air direction changing plates 10a and left / right air direction changing plates are provided at the center of the lower surface. Rear outlets 10 provided with 10b are provided. The up-and-down air direction changing plate 9a and the up-and-down air direction changing plate 10a deflect the air blown out from the front air outlet 9 and the rear air outlet 10 in the vertical direction by rotating. And 10 can be closed.
[0011]
The air passage connecting the plurality of suction ports and the plurality of air outlets of the main body is divided into a front part and a rear part from the center to the lower part of the air passage, and the front suction port 7a and the upper front suction port 7b A partition 3 is provided that forms a front air passage 5 that connects the front air outlet 9 and a rear air passage 6 that connects the rear upper air inlet 8 and the rear air outlet 10. An opening / closing body 4 is provided above the partition 3 so as to shield or communicate the front air passage 5 and the rear air passage 6 while shielding the upper surface rear suction port 8. Yes. The opening / closing body 4 is pivotally supported by a shaft 4a provided at the upper end. When the opening / closing body 4 is rotated upward, the front air passage 5 and the rear air passage 6 are communicated with each other, while the upper rear suction port 8 is provided. When shielded and rotated downward, the front air passage 5 and the rear air passage 6 are shielded.
[0012]
In the front air passage 5 connecting the front suction port 7a and the upper front suction port 7b and the front outlet 9, the vertical portion 11a and the upper end of the vertical portion 11a are bent backward. A front heat exchanger 11 composed of an inclined rear heat exchanger 11b, and a front blower fan 13 for sending the air heat-exchanged in the front heat exchanger 11 into the room from the front outlet 9; A front dew tray 15 for receiving condensed water dripping from the front heat exchanger 11 is provided, and the rear air passage 6 connecting the upper surface rear inlet 8 and the rear outlet 10 has a rear The rear heat exchanger 12 inclined to the rear, the rear fan 14 for sending the air heat-exchanged in the rear heat exchanger 12 into the room from the rear outlet 10, and the condensed water dripping from the rear heat exchanger. A rear dew tray 16 is provided.
[0013]
Next, the operation of the above air conditioner will be described. In the cooling operation, as shown in FIG. 1, the up / down air direction changing plate 9a and the up / down air direction changing plate 10a rotate downward to open the front air outlet 9 and the rear air outlet 10, respectively. It is like that. Further, the front air passage 5 and the rear air passage 6 are shielded by the opening / closing body 4. Indoor air sucked from the front suction port 7a and the upper front suction port 7b is heat-exchanged by the front heat exchanger 11 provided in the front air passage 5, and the front blower fan. 13, the indoor air sent from the front air outlet 9 to the room and sucked from the upper rear air inlet 8 is heat-exchanged by the rear heat exchanger 12 provided in the rear air passage 6 and the rear air blower. The fans 14 are sent out from the rear outlet 10 into the room. The cooling operation can be performed only by the front air passage 5 or the front air outlet 9 can be closed by the up-and-down air direction changing plate 9a so that the cooling operation can be performed only by the rear air passage 6. Yes.
[0014]
Next, operation during heating operation will be described. During heating operation, as shown in FIG. 2, the opening / closing body 4 pivots upward about the shaft 4 a to connect the front air passage 5 and the rear air passage 6, while the upper rear portion The suction port 8 is shielded, and the front air outlet 9 is closed by the up / down air direction changing plate 9a. The front heat exchanger 11 and the rear heat exchanger 12 operate as a condenser that releases heat to the sucked air and heats it.
[0015]
The indoor air sucked from the front suction port 7a and the upper front front suction port 7b is heated by the front heat exchanger 11 as shown by the arrows in FIG. 2, and the temperature rises to some extent. Subsequently, the opened opening / closing body 4 flows into the rear air passage 6 and is further heated by the rear heat exchanger 12 provided in the rear air passage 6 to a temperature sufficient to heat the room. The rear blower fan 14 sends the air from the rear outlet 10 into the room. The inhaled air is heated twice by the front heat exchanger 11 and the rear heat exchanger 12, so that the front heat exchanger 11 and the rear heat exchanger at the beginning of the heating operation. Even if the temperature of 12 has not risen sufficiently, air whose temperature has risen to some extent can be blown out from the rear outlet 10 so that the heating operation can be started up smoothly. Further, even when the operation of the compressor provided in the outdoor unit is switched to a low speed, the heating operation can be continued without the temperature of the air blown out from the rear outlet 10 being rapidly decreased, It is possible to prevent such a problem that an unpleasant feeling is given to the user due to the switching. In addition, when the room temperature rises sufficiently, the front air passage 5 and the rear air passage 6 are shielded by the opening / closing body 4, and the heating operation can be continued in any one of these. ing.
[0016]
【The invention's effect】
As described above, according to the present invention, the inside of the main body is divided into the front and rear by the partition body, the front air passage having the front heat exchanger and the front blower fan on the front surface thereof, and the rear portion on the rear surface By forming a rear air passage provided with a heat exchanger and a rear blower fan, respectively, during the heating operation, the opening / closing body is rotated and the front air passage and the rear air passage are communicated with each other. By heating the air again with the front heat exchanger and the rear heat exchanger, the air conditioner can smoothly start up the heating operation.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an air conditioner according to the present invention.
FIG. 2 is a cross-sectional view showing a state during heating operation of the air conditioner according to the present invention.
FIG. 3 is a cross-sectional view showing an air conditioner according to a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Base 2 Front panel 3 Partition body 4 Opening / closing body 4a Shaft 5 Front air passage 6 Rear air passage 7a Front suction port 7b Top front suction port 8 Upper surface rear suction port 9 Front outlet 9a Vertical air direction change plate 9b Left and right wind direction Change plate 10 Rear outlet 10a Vertical air direction change plate 10b Left and right air direction change plate 11 Front heat exchanger 11a Vertical portion 11b Rear inclined portion 12 Rear heat exchanger 13 Front air fan 14 Rear air fan 15 Front air dew tray 16 Rear Dew tray

Claims (4)

A front suction port is provided at the front upper part of the main body, an upper front suction port is provided at the upper front part, an upper rear suction port is provided at the upper rear part, and a front air outlet provided with a vertical airflow direction change plate at the lower front part. A front air outlet with a vertical airflow direction change plate at the center of the bottom surface, and the air passage connecting the air inlet and the air outlet is partitioned from the center to the lower part of the air passage in the front-rear direction. A partition that forms a front air passage connecting the opening and the upper front suction port and the front outlet, and a rear air passage connecting the upper rear suction port and the rear outlet, A front heat exchanger and a front blower fan in the rear air passage, and a rear heat exchanger and a rear blower fan in the rear air passage, respectively, while the front in the first state above the partition. The front air passage and the rear air passage are shielded, and the front While communicating with the air passage rear air passage, it is provided a closing member for shielding the upper surface rear inlet,
During heating operation, the opening / closing body is set to the second state, the front air outlet is shielded by the up / down air direction change plate, and the air sucked from the front suction port and the upper front suction port Is sent into the room from the rear outlet by the rear fan through the front heat exchanger and the rear heat exchanger, while the air heated by the front heat exchanger is further An air conditioner characterized in that the temperature is raised by heating again with the rear heat exchanger. The opening / closing body pivots upward about an axis provided at the upper end, thereby allowing the front air passage and the rear air passage to communicate with each other, shielding the upper surface rear suction port, and pivoting downward. The air conditioner according to claim 1, wherein the front air passage and the rear air passage are shielded by doing so. The air conditioner according to claim 2, wherein the opening and closing body shields the front air passage and the rear air passage during cooling operation. When the room temperature reaches a predetermined temperature during the heating operation, the front air passage and the rear air passage are shielded by the opening / closing body, and the heating operation is continued with one of these. The air conditioner according to claim 2, wherein

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