CN1151494A - Indoor assembly of air conditioner - Google Patents

Abstract

The indoor assembly of the air conditioner includes an air supply duct formed between the front cover and the body frame, a cross-flow fan is provided in the air supply duct, and a heat exchanger is provided on the upstream side of the cross-flow fan. By disposing the heat exchanger independently At a position separated by an appropriate distance, and set in an inclined state where the upper sides are close to each other, and set a long plate covering the gap between the upper sides of the two heat exchangers, and set the cross-flow fan in the opening between the lower sides of the two heat exchangers , configure the heater directly under the long board. The heater in the indoor component can be arranged at a position far away from the cross-flow fan, so the disturbing noise generated when the rear air flow of the heater flows into the cross-flow fan can be reduced.

Description

Indoor components of air conditioners

The invention relates to the structure of an air supply circuit in a cross-flow blower type air conditioner, and relates to an indoor component of the air conditioner.

In recent years, in order to meet the demand for higher performance of air conditioners, indoor units having the structure described in Japanese Patent Laid-Open Publication No. 98521 in 1983 have been invented. The structure thereof will be described below with reference to FIG. 15 . In FIG. 15 , air ducts are formed between the air inlets 202A and 202B and the air outlet 203 of the indoor unit 201 . Inside the air duct, heat exchangers 204A and 204B composed of two parts are arranged in an inverted V shape, and cross-flow fans 205 are arranged below the heat exchangers 204A and 204B, and the air after heat exchange passes through the cross-flow fans 205. sent to the outlet 203. Drain pan 206 receives dehumidified water falling from heat exchangers 204A and 204B, and constitutes a wall of a part of the air duct.

The above-mentioned indoor unit 201 has the feature that the heat exchangers 204A, 204B are arranged in an inverted V shape, so that the capacity of the heat exchangers can be greatly improved compared with the conventional arrangement of heat exchangers.

On the other hand, since a small-capacity heater is used for reheating during dehumidification operation and as an auxiliary heat source for heat pump heating, it is simple and effective, so there are currently more and more examples of placing it on the downstream side of the heat exchanger.

However, in the indoor unit having the two-part heat exchangers 204A, 204B as described above, the place where the heater is installed is only the roughly triangular space surrounded by the cross-flow fan 205 and the heat exchangers 204A, 204B, and It is very difficult to pack the heater and its accessory parts and prevent the increase of ventilation resistance and the occurrence of noise caused thereby.

In addition, when the heater is energized, because the airflow behind the heater has a temperature difference to the surrounding airflow, resulting in a density difference, so if the distance between the heater and the cross-flow fan 205 is close, when the airflow behind the heater flows into the cross-flow fan, In addition to normal noise, notable abnormal sounds may occur.

In order to solve the above-mentioned problems, the indoor unit of the air conditioner of the present invention has an air supply duct toward the lower end air outlet between the front cover and the main body frame with the suction port on the top surface and the front part, and in the air supply duct, the A cross-flow fan having a cylindrical impeller with a plurality of blades, on the upstream side of the cross-flow fan, heat exchangers are arranged on the front side and the back side, and the cross-flow fan is formed from the cross-flow fan toward the air outlet on the front side and the back side the stabilizer and rear guide of the diffuser, and,

The two heat exchangers are independently arranged at an appropriate distance apart, and the upper sides of the two heat exchangers are inclined to each other, and a long plate covering the gap between the upper sides of the two heat exchangers is installed. A cross-flow fan is arranged in the opening between the parts, and a heater is arranged directly under the long board.

Due to the above structure, the space surrounded by the two heat exchangers and the cross-flow fan expands approximately trapezoidally, so there is room for space, and the heater can be easily installed, and the heater can be arranged at a position away from the cross-flow fan. . As a result, the rear airflow of the heater, which has a density difference from the surrounding airflow, can be diffused before flowing into the cross-flow fan, and the disturbance noise generated when the heater rear airflow flows into the cross-flow fan can be reduced.

As a more preferable configuration, the heater is supported by a heater support plate and arranged directly below the long plate, and is arranged on both sides of the cross-flow fan in the direction of the rotation axis to connect the opposite side ends of the two heat exchangers. The trapezoidal side plates fix and hold both ends of the heater support plate with each side plate.

With such a configuration, the strength of the heater is reinforced by the heater supporting plate, so that the heater arranged across the air duct can be fixed and held in a stable static state. The two ends of the heater supporting plate are stably held on the heat exchanger by the side plates, so sufficient strength against the air flow can be ensured.

As a more preferable configuration, the first connection wire drawn from one end of the heater is installed in a state of passing through a hole formed on the side plate opposite to the one end of the heater, and the second connection wire drawn out from the other end of the heater is arranged along the After the heater supporting plate is folded back, it is provided in a state of penetrating through the hole of the side plate together with the first connecting wire, and the folded-back section of the second connecting wire is fixedly supported by the heater supporting plate.

With such a configuration, the second connection wires erected across the air duct can be closely attached to the heater support plate and fixed to maintain a stationary state, thereby reducing ventilation resistance and eliminating noise caused by wind noise. In addition, the integrity of the connection wires and the heater support plate is enhanced, and the handling thereof becomes easier.

As a more preferable structure, the heater support plate is used to support the heater and arranged directly below the long plate, and vertical support plates are provided on the rear guide at the positions on both sides of the cross-flow fan in the direction of the rotation axis, and each support plate is used to support the heater. Plate fixtures hold the heater support plate at both ends.

With such a configuration, the strength of the heater is increased by the heater support plate, and the heater arranged across the air duct can be fixed and held in a stable static state. Both ends of the heater support plate are stably held on the rear guide by the two support plates, so sufficient strength against air flow can be ensured.

As a more preferable structure, the first connecting wire drawn from one end of the heater is provided in a state of passing through a hole of a support plate opposite to one end of the heater, and the second connecting wire drawn out from the other end of the heater is along the After the heater support plate is folded back, it is provided in a state of penetrating through the hole of the support plate together with the first connection wire, and the folded-back section of the second connection wire is fixedly supported by the heater support plate.

With such a configuration, the second connecting wires erected across the air supply duct can be closely attached to the heater support plate and fixed in a static state, the ventilation resistance is reduced, and the noise caused by the wind noise disappears. In addition, the integrity of the connection wires and the heater support plate is enhanced, and the handling thereof becomes easier.

As a more preferable configuration, an even number of heaters are arranged in parallel directly under the long plate, and connection wires drawn from both ends of each heater are connected in series.

With such a configuration, only the rigid heater crosses the airflow in the air supply duct, and a pair of connecting wires that become the input ends of the heater group exist on the side of one end of the heater, and there is no crossing the air supply duct. connecting wires. Therefore, the turbulence of the airflow caused by the contact of the airflow with the connecting wire disappears, and the noise caused by the turbulence of the airflow can be suppressed. In addition, since the connecting wires do not cross the air flow, the heater support plate for holding the connecting wires is no longer required, and the ventilation resistance and the number of parts can be reduced.

As a more preferable configuration, at least one of an abnormality detection device for detecting heater abnormalities such as overcurrent and excessive temperature rise and a protection device for cutting off power supply is fixedly arranged on the heater supporting plate.

With such a configuration, the heater and its related components, that is, the abnormality detection device and the protection device are integrated, and the attachment and detachment thereof can be easily performed.

As a more preferable configuration, a hat-shaped cover covering the abnormality detection device and the upper part of the protection device is provided.

With such a configuration, it is possible to prevent dew condensation water dripping from the heat exchanger from accidentally dripping onto the abnormality detection device or the protection device, to smooth the flow of air around the abnormality detection device and the protection device, and to suppress noise.

As a more preferable configuration, when the heater is arranged on the heater support plate, the distance between the heater and the heater support plate is set to be the same width along the flow direction of the air flow, or to be narrowed toward the downstream side.

In the above configuration, since the air flow passing through the two heat exchangers either flows in the vertical direction or flows more and more toward the downstream side, by arranging the heater and the heater support plate in the above-mentioned state, the heater and the heater The heater support plate is in the posture of flowing along the airflow, the ventilation resistance is reduced, the width of the airflow behind the heater is narrowed, and noise can be reduced.

As a more preferable configuration, an obstacle that stirs the airflow behind is provided directly below the heater.

With the above configuration, the airflow behind the heater, which has a density difference with the surrounding airflow due to the temperature difference, diffuses due to obstacles, reduces the density difference with the surrounding airflow, and increases the inflow width of the airflow to the cross-flow fan, which can suppress the occurrence of the current flow. Notable abnormal sound produced by the rear air flow into the cross-flow fan.

As a more preferable configuration, the plate-shaped obstacle arranged directly under the heater is arranged obliquely with respect to the flow direction of the airflow.

With the above configuration, it is possible to suppress an increase in ventilation resistance caused by the obstacle itself while maintaining the effect of suppressing abnormal noise generated when the rear airflow flows into the cross-flow fan.

As a more preferable structure, the plate-shaped obstacle arranged directly under the heater is fixedly arranged on the heater support plate.

With the above configuration, the obstacle can be easily attached.

As a more preferable structure, the plate-shaped obstacle arrange|positioned directly under the heater is formed integrally with a heater support plate.

With the above constitution, the manufacture and installation of the obstacle can be made more convenient.

Brief introduction to the drawings:

Fig. 1 is a cross-sectional view of a first embodiment of an indoor unit of an air conditioner according to the present invention.

Fig. 2 is a perspective view of a second embodiment of the indoor unit of the air conditioner of the present invention.

Fig. 3 is a perspective view of a third embodiment of an indoor unit of an air conditioner according to the present invention.

Fig. 4 is a perspective view of a fourth embodiment of an indoor unit of an air conditioner according to the present invention.

Fig. 5 is a perspective view of a fifth embodiment of the indoor unit of the air conditioner of the present invention.

Fig. 6 is a perspective view of a sixth embodiment of the indoor unit of the air conditioner according to the present invention.

Fig. 7 is a perspective view of a seventh embodiment of an indoor unit of an air conditioner according to the present invention.

Fig. 8 is a perspective view of an eighth embodiment of an indoor unit of an air conditioner according to the present invention.

Fig. 9 is a cross-sectional view of a ninth embodiment of an indoor unit of an air conditioner according to the present invention.

Fig. 10 is a cross-sectional view of a tenth embodiment of an indoor unit of an air conditioner according to the present invention.

Fig. 11 is a frequency analysis diagram of the tenth embodiment of the indoor unit of the air conditioner of the present invention.

Fig. 12 is a cross-sectional view of an eleventh embodiment of an indoor unit of an air conditioner according to the present invention.

Fig. 13 is a perspective view of a twelfth embodiment of an indoor unit of an air conditioner according to the present invention.

Fig. 14 is a perspective view of a thirteenth embodiment of an indoor unit of an air conditioner according to the present invention.

Fig. 15 is a cross-sectional view of the prior art.

Embodiments of the present invention are described below with reference to the drawings. Fig. 1 is a sectional view of an indoor unit of an air conditioner according to the present invention. In FIG. 1 , an indoor unit 10 has a suction port 11 on the upper side and a top surface, and an air outlet 12 on the lower side, and an air duct 13 is formed between the suction port 11 and the air outlet 12 . Inside the air duct 13, a detachable filter 16 protruding into the top side of the body frame 15 along the inner surface of the front cover 14 is arranged, and heat exchangers 17a, 17b are arranged on the front side and the back side. , and a cross-flow fan 18 located inside surrounded by heat exchangers 17a, 17b. The cross-flow fan 18 is formed by arranging a plurality of blades 19 in a cylindrical shape to form a single impeller, and then combining the plurality of impellers along the direction of the rotation axis.

In the air duct 13 on the downstream side of the cross-flow fan 18, the stabilizer 21 that is close to and opposite to the cross-flow fan 18 is configured, and the back of the diffuser 22 from the cross-flow fan 18 to the air outlet 12 is formed between the stabilizer 21 Guide 23. Parts of the rear guide 23 and the stabilizer 21 form a drain pan 24 that receives dehumidified water falling from the heat exchangers 17a, 17b. The blower outlet 12 is provided with vertical guide vanes 25 for controlling the direction of the airflow blown into the chamber in the vertical direction.

Both heat exchangers 17a and 17b are independently arranged at positions separated by an appropriate distance, and are installed obliquely in a state where their upper sides approach each other. The long plate 26 which connects both heat exchangers 17a, 17b is provided in the state which covers the upper side gap of both heat exchangers 17a, 17b. The cross-flow fan 18 is located in the opening between the lower parts of the heat exchangers 17a, 17b, and the heater 27 is arranged directly below the long plate 26. As shown in FIG. The heater 27 is fixedly supported by a heater support plate 29 via a fixing jig 28 .

In this embodiment, the purpose of using the heater 27 is dehumidification and auxiliary heating during heating by the heat pump, and dehumidification will be specifically described here. During the dehumidification operation, the heat exchangers 17a, 17b function as evaporators, and the temperature of the sucked indoor air passes through the low-temperature heat exchangers 17a, 17b, and the temperature drops. Condensation condenses, and the absolute humidity also drops. When the air passing through the heat exchangers 17a and 17b is blown out as it is, it is normal cooling operation.

But when heater 11 is arranged on the downstream side of heat exchanger 17a, 17b, because the air after passing through heat exchanger 17a, 17b only temperature rises, absolute humidity is not affected by heater 27, so after passing through heater 27 Air whose temperature is close to room temperature becomes dehumidified air with low relative humidity.

Considering the function of the heater 27 during such a dehumidification operation, the position of the heater 27 must be located on the downstream side of the heat exchangers 17a, 17b. In addition, because there is no space on the downstream side of the cross-flow fan 18, and the air heated by the heater 27 may rise when the fan is stopped, the position of the heater 27 is arranged between the heat exchangers 17a, 17b and the cross-flow fan 18. most suitable in the space.

However, when the heater 27 is arranged in the space between the heat exchangers 17a, 17b and the cross-flow fan 18, in order to prevent noise from increasing due to interference with the cross-flow fan 18, the heater 27 must be placed as far as possible. It is arranged away from the cross-flow fan 18 .

In this case, as shown in this embodiment, the heat exchangers 17a, 17b are located at separate positions by sandwiching the long plate 26, and the space surrounded by the two heat exchangers 17a, 17b and the cross-flow fan 18 is roughly shaped like: The trapezoidal expansion creates room for space, so the heater 27 can be easily incorporated, and the heater 27 can be arranged at a position away from the cross-flow fan 18 . As a result, the rear airflow of the heater 27 that has a density difference from the surrounding airflow can diffuse before flowing into the cross-flow fan 18, and the disturbance noise generated when the rear airflow of the heater 27 flows into the cross-flow fan 18 can be reduced.

Referring now to FIG. 2, a second embodiment of the indoor unit of the air conditioner according to the present invention will be described. Also, the same reference numerals are used for the same parts as those of the first embodiment. In FIG. 2, two heat exchangers 17a, 17b are fixed to each other, and in order to fix both to the main body frame 15, a substantially trapezoidal side plate 31 is provided. The side plates 31 are provided on both end sides of the cross-flow fan 18 in the rotation axis direction so as to cover a substantially triangular gap formed between the heat exchangers 17a, 17b. Both ends of a heater support plate 29 supporting the heater 27 are inserted into holes 32 formed in the side plate 31 and fixed.

By employing such an aspect, the heater 27 and the heater support plate 29 supporting the heater 27 can be easily fixed. In addition, compared with other fixing methods such as hanging down from the long plate 26, it is easier to maintain the strength of the heater support plate 29, and the attachment and detachment of the heater 27 and the heater support plate 29 can be easily performed.

Referring now to FIG. 3, a third embodiment of the indoor unit of the air conditioner according to the present invention will be described. Also, the same reference numerals are used for the same parts as those of the first and second embodiments. In Fig. 3, the first connecting wire 33 drawn from one end of the heater 27 passes through the hole 32 of the side plate 31 and is connected to the power supply 35, and the second connecting wire 34 at the other end is folded back and connected to the first connecting wire. 33 pass through the hole 32 of the side plate 31 together, and the turn-back section of the second connection wire 34 is fixedly supported by the heater support plate 29 .

By employing such an aspect, the second connecting wire 34 can be securely fixed, and the ventilation resistance can be suppressed by bringing the second connecting wire 34 into close contact with the heater support plate 29 . In addition, the integrity of the second connection wire 34, the heater 27, and the heater support plate 29 is enhanced, so that they can be assembled or repaired as one unit.

Referring now to FIG. 4, a fourth embodiment of an indoor unit of an air conditioner according to the present invention will be described. In addition, the same reference numerals are used for the same parts as those of the first to third embodiments. In FIG. 4 , at both sides of the cross-flow fan 18 in the rotation axis direction, support plates 36 perpendicular to the rear guide 23 are provided, and the two ends of the heater support plate 29 pass through the holes 37 of each support plate 36 and are fixedly held. . With such a configuration, the heater 27 and the heater support plate 29 supporting the heater 27 can be easily fixed and easily attached and detached.

Referring now to FIG. 5, a fifth embodiment of an indoor unit of an air conditioner according to the present invention will be described. In addition, the same reference numerals are used for the same parts as those of the first to fourth embodiments. In FIG. 5 , the first connection wire 33 drawn from the heater 27 passes through the hole 37 of the support plate 36 and is connected to the power supply unit 35 , and the second connection wire 34 passes through the hole 37 of the support plate 36 after turning in a U shape. , connected to the power supply unit 35 .

By employing the above configuration, the second connection wire 34 can be reliably fixed, and the ventilation resistance can be suppressed by making the second connection wire 34 closely adhere to the heater support plate 29 .

Referring now to FIG. 6, a sixth embodiment of an indoor unit of an air conditioner according to the present invention will be described. In addition, the same reference numerals are used for the same parts as those of the first to fifth embodiments. In FIG. 6 , two heaters 27 are provided and connected in series, so that one of the heaters 27 is used instead of the second connection wire 34 in the above configuration. In addition, since the heater 27 has high rigidity unlike the connection wire 34, the heater support plate 29 is not provided.

In this embodiment, two heaters 27 are provided, but obviously, as long as they are even numbers, they all have the same effect.

Referring now to FIG. 7, a seventh embodiment of an indoor unit of an air conditioner according to the present invention will be described. In addition, the same reference numerals are used for the same parts as those of the first to sixth embodiments. In Fig. 7, on the heater support plate 29, a temperature overload protector (temperature OLP) 38 that cuts off the power after detecting an excessive rise in temperature caused by abnormal operation of the heater 27 is fixed, and detects that the same due to the heater The fuse 39 that cuts off the power supply after the overcurrent caused by the abnormal operation of 27.

By adopting the above-mentioned form, the temperature OLP 38 and the fuse 39 , which are part of the abnormality detection device and the protection device, and the heater support plate 29 and the heater 27 are integrated into one unit, which can be easily assembled and repaired.

In addition, since the temperature OLP 38 can be arranged in the immediate vicinity of the heater 27, an abnormality caused by an excessive rise in the temperature of the heater 27 can be reliably detected.

Referring to Fig. 8, an eighth embodiment of the indoor unit of the air conditioner according to the present invention will be described. In addition, the same reference numerals are used for the same parts as those of the first to seventh embodiments. In FIG. 8 , a cap-shaped cover 40 covering the upper portion of the temperature OLP 38 fixed to the heater support plate 29 is provided.

By adopting the above-mentioned form, the flow of the airflow colliding with the temperature OLP 38 is guided and smoothed by the hat-shaped cover 40, turbulent flow is suppressed, and noise is reduced.

In addition, during cooling, even if the dew attached to the heat exchangers 17a and 17b above the temperature OLP38 drips, the hat-shaped cover 40 can prevent the dew from falling on the temperature OLP38, and the detection of the temperature OLP38 can be improved. reliability. A cover 40 may also be provided on the fuse 39 .

Referring now to FIG. 9, a ninth embodiment of the indoor unit of the air conditioner according to the present invention will be described. Also, the same parts as those in the first to eighth embodiments are given the same reference numerals. In Fig. 9, when it is assumed that there is no heater 27 and heater support plate 29, the flow of the airflow near the heater 27 is shown by the arrow in Fig. 9, which is a substantially vertically downward parallel airflow, and has a slight contraction in the downstream direction. the trend of. Therefore, when the heater 27 and the heater support plate 29 are arranged in this part, by making the shape along the flow direction as described above, that is, the distance between the heater 27 and the heater support plate 29 becomes larger and larger with the trend. In the downstream direction, its size is unchanged or narrowed, so that the ventilation resistance is the smallest and the noise is less.

Referring now to Fig. 10 and Fig. 11, a tenth embodiment of the indoor unit of the air conditioner according to the present invention will be described. In addition, the same reference numerals are used for the same parts as those of the first to ninth embodiments. In FIGS. 10-11 , a horizontal plate-shaped obstacle 41 is provided directly below the heater 27 .

By adopting the structure as described above, the rear airflow AF of the heater 27 (please refer to FIG. 1 for the rear airflow AF when there is no obstacle 41) is diffused, the density difference between it and the surrounding airflow is reduced, and the flow into the cross-flow fan 18 is increased simultaneously. 10 to form the rear airflow AF as shown in FIG.

Fig. 11 is a frequency characteristic graph showing the suppression of abnormal sound by obstacles 41. The abnormal sound generated near 500 Hz when the heater 27 is energized is improved to the frequency characteristic shown by the dotted line after the obstacle 41 is installed, which is the same as that of the heater. There is not much difference when closed. Here, a horizontal plate is used, but of course obstacles having other cross-sectional shapes such as rods can have the same effect.

Referring now to Fig. 12, an eleventh embodiment of an indoor unit of an air conditioner according to the present invention will be described. Also, the same parts as those in the first to tenth embodiments are given the same reference numerals. In FIG. 12 , it is preferable to arrange the plate-shaped obstacle 41 horizontally for the purpose of spreading the rear airflow AF to suppress abnormal noise. However, on the other hand, the horizontal setting will increase the ventilation resistance, decrease the air volume, disturb the air flow, and increase the turbulent noise other than abnormal sounds. In order to suppress the occurrence of these phenomena, when the obstacle 41 is installed, it is installed in an inclined state. Thereby, abnormal noise can be reduced, and an increase in ventilation resistance and turbulence noise can be prevented.

Referring now to Fig. 13, a twelfth embodiment of the indoor unit of the air conditioner according to the present invention will be described. Also, the same parts as those in the first to eleventh embodiments are given the same reference numerals. In FIG. 13 , when the plate-shaped obstacle 41 is provided directly below the heater 27 , the plate-shaped obstacle 41 can be easily attached by fixing the plate-shaped obstacle 41 to the heater support plate 29 .

Referring now to Fig. 14, a thirteenth embodiment of an indoor unit of an air conditioner according to the present invention will be described. Also, the same reference numerals are used for the same parts as in the first to twelfth embodiments. In FIG. 14, when a plate-shaped obstacle 41 is provided directly below the heater 27, the plate-shaped obstacle 41 is integrally formed with the heater support plate 29, thereby making it easier to manufacture and install the plate-shaped obstacle. Object 41.

Claims (13)

1. the indoor assembly of an air conditioner, have between the front shroud and body frame of suction inlet at its top part and front face, have towards the air delivery duct of lower end blow-off outlet, in this air delivery duct, configuration has the cross flow fan of a plurality of blades being arranged to columned impeller, at the upstream side of cross flow fan, be positioned at front side and dorsal part place configuration heat exchanger, and form the stabilizing member and the back guide of diffusion part from cross flow fan towards blow-off outlet in the configuration of front side and dorsal part, it is characterized in that

The two heat-exchanger separate configurations is in the position that is separated by suitable distance, two heat-exchanger is obliquely installed with the mutual approaching state of upper lateral part, and the long slab that covers two heat-exchanger upper lateral part gap is set, in the opening between the two heat-exchanger following side, dispose cross flow fan, and under long slab, dispose heater.

2. the indoor assembly of air conditioner according to claim 1, it is characterized in that, described heater with heater support plate supporting and be configured in long slab under, both sides in the rotor shaft direction of cross flow fan, state with the opposed side end that connects two heat-exchanger is provided with the roughly side plate of trapezoidal shape, with the two ends of the fixing maintenance of each side plate heater support plate.

3. the indoor assembly of air conditioner according to claim 2, it is characterized in that, the 1st connect electric wire from what an end of described heater was drawn to penetrate the state setting that is formed at the hole portion on the side plate relative with an end of heater, from the heater other end draw the 2nd connect electric wire and turn back along the heater support plate after, connect electric wire with the 1st, running through the state setting of described side plate hole portion, and connect the interval of turning back of electric wire with heater support plate fixed bearing the 2nd.

4. the indoor assembly of air conditioner according to claim 1, it is characterized in that, with the heater support plate support described heater and with its be configured in described long slab under, position, both sides in the rotor shaft direction of described cross flow fan, on the guide of described back, vertical support plate is set, with the fixing two ends that keep the heater support plate of each support plate.

5. the indoor assembly of air conditioner according to claim 4, it is characterized in that, the 1st connect the state setting of electric wire from what an end of described heater was drawn with the hole portion that penetrates a support plate relative with an end of heater, and from the other end of heater draw the 2nd connect electric wire and turn back along the heater support plate after, connect electric wire with the 1st, running through the state setting of described supporting plate hole portion, and fix the interval of turning back that supporting the 2nd connects electric wire with the heater support plate.

6. the indoor assembly of air conditioner according to claim 1 is characterized in that, the heater of configured in parallel even number under described long slab, and a connection electric wire of drawing from each heater both ends is connected in series.

7. according to the indoor assembly of each the described air conditioner in the claim 2,3,4,5; it is characterized in that; on described heater support plate, the abnormal detector that the heater abnormal conditions of fixed configurations detection of excessive current and excessive temperature rising etc. are used and cut off at least a in the protective device of energising.

8. the indoor assembly of air conditioner according to claim 7 is characterized in that, the cover of the cap shape that covers abnormal detector, protective device top is set.

9. according to the indoor assembly of each the described air conditioner in the claim 2,3,4,5,7,8, it is characterized in that, be arranged to when with heater configuration on the heater support plate time, heater is identical along the air current flow direction with the interval width of heater support plate, or it is narrow more to arrive the downstream more.

10. according to the indoor assembly of each the described air conditioner among the claim 1-9, it is characterized in that, under described heater, be provided with the barrier that stirs the back air-flow.

11. the indoor assembly according to each the described air conditioner among the claim 1-10 is characterized in that, the flow direction that is configured in the tabular barrier relative wind under the heater is obliquely installed.

12. the indoor assembly according to each the described air conditioner in the claim 2,3,4,5,7,8,9,10,11 is characterized in that, the tabular barrier that is configured under the heater is fixedly installed on the heater support plate.

13. the indoor assembly according to each the described air conditioner in the claim 2,3,4,5,7,8,9,10,11,12 is characterized in that, the tabular barrier and the heater support plate that are configured under the heater are integrally formed.

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