KR20040057905A - Outdoor unit - Google Patents

Abstract

PURPOSE: An outdoor unit is provided to easily attach an outside air temperature detection sensor at a part where air volume is large without deforming fins of an outdoor heat exchanger. CONSTITUTION: A compressor, an outdoor heat exchanger(15), and an outdoor blower are contained in a casing with a rear side open. The outdoor heat exchanger is arranged on the opened rear side, a reinforcing plate is arranged on the upper surface of the outdoor heat exchanger. A sensor case(43) vertically descending along the outer surface of the outdoor heat exchanger is installed on the reinforcing plate, containing a temperature sensor for detecting outside temperature.

Description

Outdoor unit {OUTDOOR UNIT}

The present invention relates to a structure of an outdoor unit constituting an air conditioner.

In general, outdoor units are known in which a compressor, an outdoor heat exchanger, an outdoor blower, and the like are housed in a housing. In this kind of thing, the outside air temperature is detected during the operation of the outdoor unit, and according to the outside air temperature, for example, switching control of the heating / cooling autonomous driving mode or the timing of entering the defrosting operation is detected. In this case, the outside air temperature detection sensor is attached to the outer surface of the outdoor heat exchanger. However, in order to increase the detection accuracy of the outside air temperature, it is preferable to attach the outside air temperature detection sensor to a portion having a large amount of outside air blowing, that is, a portion having a large amount of air. By the way, in recent years, the rear side of the housing of an outdoor unit is opened, and the outdoor heat exchanger is arrange | positioned at this open rear side, and the amount of air blown in is proposed. In such a case, when the outdoor air temperature sensor is attached to a portion of the outdoor heat exchanger having a large amount of air, as an attachment means, for example, the external air temperature sensor must be inserted through the fin of the outdoor heat exchanger and inserted into the refrigerant pipe (eg, See, for example, Patent Document 1).

[Patent Document 1]

Japanese Patent Laid-Open No. 11-325518

However, in the conventional structure, since the outside air temperature detection sensor is attached by penetrating between the fins of the outdoor heat exchanger and inserting it into the refrigerant pipe, there is a problem that the fins of the outdoor heat exchanger are easily deformed.

Accordingly, an object of the present invention is to provide an outdoor unit capable of attaching an outside air temperature detection sensor to a portion having a large volume of air without solving the problems of the conventional technology described above and modifying the fin of the outdoor heat exchanger. .

1 is an exploded perspective view showing an embodiment of an outdoor unit according to the present invention.

2 is a front view of an outdoor unit.

Figure 3 is an exploded perspective view of the side plate, reinforcing plate, support plate.

4 is a view showing a coupling state of a reinforcement plate and a support plate.

Fig. 5 is a view showing a coupling state of side plates and reinforcement plates.

Fig. 6 is a diagram showing a state where the side plate and the reinforcing plate are similarly engaged.

Fig. 7 is a view showing a coupling state of the reinforcement plate and the sensor case.

Fig. 8 is a view showing a coupling state of a reinforcement plate and a sensor case.

9 is a view showing an attached state of a sensor case;

10A and 10B are perspective views each showing a sensor case;

<Explanation of symbols for the main parts of the drawings>

1: outdoor unit

3: bottom plate

5: partition plate

7: compressor

9: accumulator

15: outdoor heat exchanger

17: outdoor blower

31: reinforcement plate

33: support plate

35: vertical rise

41: recess

43: sensor case

43A: Attachment

43B: Sensor Holder

43C: Door Member

45: temperature sensor

According to the invention of claim 1, a compressor, an outdoor heat exchanger, an outdoor blower, and the like are housed in a housing having an open rear side, an outdoor heat exchanger is arranged on the open rear side, and a reinforcement plate is disposed on an upper surface of the outdoor heat exchanger. The reinforcing plate is attached to a sensor case accommodating a temperature sensor for detecting the outside temperature, which vertically descends toward the outer surface of the outdoor heat exchanger.

In the invention according to claim 2, in the first aspect of the invention, a vertical riser that vertically rises upward is formed on the upper surface of the reinforcing plate, a recess is formed in the vertical riser, and the sensor case is attached to the recess. It is characterized by.

In the invention according to claim 3, the sensor case includes the attachment part on the upper surface of the reinforcement plate and the basket-shaped sensor holder part which is vertically lowered to the outer surface of the outdoor heat exchanger. The part is characterized in that the outer surface side of the outdoor heat exchanger is opened, and the opening part is provided with a door member which opens and closes when the temperature sensor is detached.

EMBODIMENT OF THE INVENTION Hereinafter, one Embodiment of this invention is described with reference to drawings.

1 and 2, reference numeral 1 denotes an outdoor unit. The outdoor unit 1 is connected to the indoor unit, not shown, by a refrigerant pipe, whereby a separate air conditioner is configured. The outdoor unit 1 is provided with the steel plate partition plate 5 standing on the bottom plate 3 made of steel plate, and the heat exchange chamber A and the machine room B on both sides of the partition plate 5. It is provided with.

In the machine room B, a compressor 7, an accumulator 9, a refrigerant pipe 11, an electrical equipment box 13, and the like, which constitute a part of a refrigeration cycle, are disposed. In the heat exchange chamber A, an outdoor heat exchanger 15 is arranged. ), An outdoor blower 17 and the like are arranged.

The heat exchange chamber (A) and the machine chamber (B) are covered by a pair of side plates 21 made of a pair of steel sheets, a bottom part covered by a bottom plate 3, and an upper part covered with a steel plate ceiling plate 23. The front part is covered with the front plate 25 made of the steel sheet. The front plate 25 and the ceiling plate 23 are integrally molded to form an approximately L shape. And the back side of the heat exchange chamber A and the machine room B is open | released, The outdoor heat exchanger 15 is arrange | positioned at this open back side. These constitute a housing surrounding the heat exchange chamber A and the machine chamber B.

In the above configuration, the reinforcing plate 31 is disposed on the upper surface of the outdoor heat exchanger 15. The reinforcing plate 31 is provided over approximately the entire width of the heat exchange chamber A and the machine chamber B, and has a hook portion 31A for sandwiching the outdoor heat exchanger 15 as shown in FIG. Then, the upper part of the outdoor heat exchanger 15 is sandwiched and attached between the hook portions 31A (see FIG. 5). The reinforcing plate 31 is provided with a pair of side plates 21, a ceiling plate 23, and a support plate 33 for supporting the motor 17A of the outdoor blower 17.

The upper part 33A of this support plate 33 is bent toward the reinforcing plate 31 side, and a small opening 33B is formed there. As shown in Fig. 4, the projections 31B provided on the reinforcing plate 31 are fitted into the opening 33B. After the fittings are fitted, the upper portion 33A of the support plate 33 and the reinforcing plate ( 31 is coupled via a screw 37. 3, the lower part 33C of this support plate 33 is bent to the opposite side to the upper part 33A, and this lower part 33C is a bottom plate made of steel plate through a screw (not shown). It is fixed to 3).

5 shows the joining order of the side plate 21 and the reinforcement plate 31. The upper surface of the reinforcing plate 31, the vertical rising portion 35 which is vertically upwardly raised by bending is integrally formed at the position on the rear side of the reinforcing plate 31, the vertical rising portion 35 is assembled The support part 35A for supporting the ceiling plate 23 is integrally formed at the time. Moreover, the locking part 35B which hangs the lock-shaped bending member 21A of the side plate 21 and made it possible to temporarily fix the said side plate 21 is formed in the both ends of the vertical rise part 35. As shown in FIG.

Next, the assembling procedure of the housing will be described.

First, after fixing various equipments including the outdoor heat exchanger 15 on the bottom plate 3, the reinforcement plate 31 is inserted in the upper part of this outdoor heat exchanger 15. As shown in FIG. Then, the support plate 33 is fixed to the reinforcing plate 31 to attach the outdoor blower 17 to the support plate 33. Next, each of the folding members 1A of the pair of side plates 21 separated as shown in Fig. 6 is attached to the locking portion 35B of the reinforcing plate 31 so that the side plates 21 do not fall. Temporarily fix the side plate 21 and the reinforcement plate 31.

In this state of temporarily fixing, the front plate 25 and the ceiling plate 23 integrally formed with reference to Fig. 1 are mounted on the pair of side plates 21 and the support portions 35A of the reinforcing plates 31, Screw the necessary parts while arranging the posture in the shape of the housing. The reinforcement plate 31 and the side plate 21 are fixed by the screw 37 as shown in FIG.

In this embodiment, as shown in FIG.7 and FIG.8, the recessed part 41 is formed in the vertical rise part 35 of the reinforcement board 31, and this recessed part 41 is the temperature sensor for outside air temperature detection. Is attached to the sensor case 43, and the sensor case 43 has a ceiling plate 23 thereon as shown in Fig. 9, and the ceiling plate 23 is screwed (not shown). By fixing, it is fixed to the outer surface of the outdoor heat exchanger 15. The sensor case 43 can be attached to any position, and can change the distance L from the side plate 21, the distance H from the upper side of the heat exchanger 15, etc., for example.

The sensor case 43 is made of resin, and the basket is vertically lowered in accordance with the attachment portion 43A (see FIG. 8) to the recess 41 of the vertical rise portion 35 and the outer surface of the outdoor heat exchanger 15. It is comprised by the sensor holder part 43B of a type | mold. This sensor holder portion 43B has an outer surface side of the outdoor heat exchanger 15 opened as shown in Figs. 10A and 10B, and the opening portion is detached when the temperature sensor 45 is detached. 43C of door members which open and close are provided. The temperature sensor 45 includes a lead wire 45A, which is held in the lead wire pressing portion 43D and extends upward, and guided into the recess 43E of the attachment portion 43A. Then, it is wired along the reinforcing plate 31 and connected to a substrate (not shown) in the electric box 13.

In this structure, as shown in FIG. 9, by forming the recessed part 41 in the longitudinal direction of the reinforcement board 31, the sensor case 43 can be easily attached to the arbitrary position of the longitudinal direction. have. Originally, it is preferable that the sensor case 43 is attached to a position having a large amount of outside air blowing (air volume). This is because the position where the amount of air volume is large varies depending on the model.

In this embodiment, the sensor case is selected by selecting a position having the largest amount of airflow and changing the distance L from the side plate 21 or the distance H from the upper side of the heat exchanger 15 in accordance with the position. Since 43 can be attached easily, the outside air temperature can be detected with high precision. In addition, since the temperature sensor 45 is housed in the cage-shaped sensor holder portion 43B, the temperature sensor 45 cannot be directly touched, so that the damage thereof can be prevented, and the passage of air is improved so that Accurate detection is possible. Moreover, since the door member 43C is provided in the sensor holder part 43B so that opening and closing is possible, the failed temperature sensor 45 etc. can be replaced easily by opening this door member 43C.

In this configuration, provision of the reinforcing plate 31 makes it easy to temporarily fix and separate the side plates 21 separated. In addition, by providing the reinforcing plate 31, the rigidity of the housing can be increased. In this configuration, even when the transverse size of the outdoor unit 1 is changed, the outdoor heat exchanger 15, the reinforcement plate 31, the bottom plate 3, the front plate 25, and the ceiling plate 23 corresponding thereto. It is only necessary to change the length of the back, and the pair of side plates 21 can be used in common.

In this structure, since all of them are attached to the reinforcing plate 31 without directly attaching equipment or the like to the outdoor heat exchanger 15, damage to the thin fins of the outdoor heat exchanger 15 is less likely to occur.

In addition, since the rear side of the housing is open, and the outdoor heat exchanger 15 is disposed on the open rear side, the air acquisition amount can be increased to improve the heat exchange efficiency of the outdoor heat exchanger 15.

As mentioned above, although this invention was demonstrated based on one Embodiment, this invention is not limited to this, A various change is possible.

In the present invention, the outdoor air temperature detection sensor can be easily attached to any portion having a large amount of air in the outdoor heat exchanger.

Claims (3)

A compressor, an outdoor heat exchanger, an outdoor blower, and the like are housed in a housing having an open rear side, an outdoor heat exchanger is disposed on the open rear side, a reinforcement plate is disposed on the upper surface of the outdoor heat exchanger, and an outdoor is provided on the reinforcement plate. An outdoor unit, comprising a sensor case accommodating a temperature sensor for detecting the outside temperature vertically descending along the outer surface of the heat exchanger. The outdoor unit according to claim 1, wherein a vertical riser that vertically rises upward is formed on an upper surface of the reinforcing plate, a recess is formed in the vertical riser, and the sensor case is attached to the recess. The sensor case according to claim 1 or 2, wherein the sensor case has an attachment portion to an upper surface of the reinforcement plate and a basket-shaped sensor holder portion which is vertically lowered to an outer surface of the outdoor heat exchanger, wherein the sensor holder portion is an outer surface of the outdoor heat exchanger. A side unit is opened, and the opening unit is provided with a door member which opens and closes when the temperature sensor is detached.