JP4033121B2 - Outdoor unit of separate air conditioner - Google Patents

Description

  The present invention relates to an outdoor unit of a separation-type air conditioner, and more particularly to a method for attaching an outdoor air temperature sensor.

An outdoor unit of a conventional separation type air conditioner will be described with reference to FIG. FIG.
It is a fragmentary perspective view of the outdoor unit of the conventional separation type air conditioner.

  In FIG. 8, the outdoor unit 1 is divided into a blower chamber 4 in which the heat exchanger 2 and the blower 3 are housed by a partition plate 1a, and a compressor chamber 5 in which a compressor (not shown) is housed. An electrical equipment box 7 in which electrical equipment 6 is housed is provided above 1 a, and an outdoor temperature sensor 8 is disposed on the windward side of the heat exchanger 2, and a sensor holding unit that holds the outdoor temperature sensor 8 9 was installed in the tongue piece part 7a which extended the back side of the electrical equipment box 7. FIG.

The outdoor air temperature sensor 8 is held on the surface of the sensor holding unit 9 that does not face the heat exchanger 2, that is, on the upstream side of the heat exchanger 2, and is connected to the electrical component 6 accommodated in the electrical box 7. The air temperature before passing through the exchanger 2 is detected and used as the outdoor air temperature for operation control of the air conditioner (for example, see Patent Document 1).
JP 11-248199 A

  However, in the conventional configuration, in order to protect the outdoor air temperature sensor 8 and prevent the outdoor air temperature sensor 8 from receiving direct sunlight and detecting an erroneous temperature, a separate part or the side surface of the outdoor unit 1 main body is formed. The sensor cover provided by extending the outer box side plate is necessary, increasing the cost and making the assembly complicated. Furthermore, as the electric unit box before assembling the outdoor unit main body 1, the sensor holding part protrudes and is deformed by handling. There was a problem that defects such as breakage were likely to occur.

  The present invention solves such conventional problems, and protects the outdoor temperature sensor with a simple structure, prevents erroneous detection of temperature due to direct sunlight, and is easy to handle as a single electrical box and has a small number of defects. An object is to provide an outdoor unit of an air conditioner.

In order to solve the above-described conventional problems, the separation type air conditioner of the present invention includes a blower chamber having a built-in blower for taking in outside air through the heat exchanger, an outer box top plate forming an outer shell upper part, a heat exchanger, and the heat exchanger. An outdoor temperature sensor that detects the temperature of the outside air flowing into the heat exchanger, an electrical box that houses electrical components connected to the outdoor temperature sensor, and the outdoor temperature that is integrally formed with the electrical box A sensor air passage provided with a sensor; an electric box upper lid that is disposed on an upper portion of the electrical box; and an upper wall disposed integrally with the sensor air passage; An opening provided in the plate, further provided on the fan side of the bottom wall of the sensor air passage with a stepped portion that is stepped lower than the heat exchanger side, and an outdoor temperature sensor is installed on the stepped portion. , feed for the said opening sensor The road and the blower room communicate with each other, and air can be reliably guided to the outdoor air temperature sensor through the opening of the outer box top plate to accurately detect the temperature, and the outdoor air temperature sensor is protected with a simple structure. The upper wall can prevent erroneous detection of temperature due to direct sunlight, radiation from the heat exchanger, air that has passed through the heat exchanger, and the like. Further, since the sensor air passage is formed integrally with the electrical box, it is easy to attach and handle the outdoor air temperature sensor and reduce defects.

  The separation type air conditioner of the present invention protects the outdoor air temperature sensor with a simple structure, prevents erroneous detection of temperature due to direct sunlight, radiation from the heat exchanger, air passing through the heat exchanger, etc. Handling is easy and defects can be reduced.

1st invention detects the temperature of the outer air which flows in into the said heat exchanger, the air blower chamber which incorporated the air blower which takes in external air through the said heat exchanger, the heat exchanger, and the heat exchanger. An outdoor air temperature sensor, an electrical equipment box for storing electrical components connected to the outdoor air temperature sensor, a sensor air passage integrally formed with the electrical equipment box and provided with the outdoor air temperature sensor, and the electrical equipment box An upper part of the electrical box that is integrally extended to the upper part of the air passage for the sensor and an opening provided on the top of the outer box, and the opening. The air passage for the sensor and the blower chamber communicate with each other. The air temperature is reliably guided to the outdoor air temperature sensor through the opening of the outer box top plate, and the outdoor air temperature can be accurately detected. Protect the sensor In addition, temperature errors due to direct sunlight, radiation from the heat exchanger, air passing through the heat exchanger, and the like can be prevented by the upper wall. Furthermore, since the sensor air passage is formed integrally with the electrical box, it is easy to install and handle the outdoor air temperature sensor and reduce defects.

  In the second invention, in particular, an upstream opening communicating with the opening is provided on the upstream side of the sensor air passage of the first invention, and a downstream opening communicating with the blower chamber is provided on the downstream side. The amount of air that passes through the sensor air passage where the outdoor air temperature sensor is arranged due to the strong suction force of the air blower acting on the downstream side opening, with the side opening located on the air blower side end face of the electrical equipment box The temperature can be detected more accurately.

  In the third invention, in particular, the opening of the second invention, the upstream opening and the outdoor air temperature sensor are arranged on the blower side from the blower side end face of the electrical box, and the air passage between the opening and the blower Since the air resistance is reduced and the amount of air passing through the sensor air passage is further increased, the temperature can be detected more accurately.

  In the fourth aspect of the invention, in particular, a step portion that is lowered stepwise from the heat exchanger side is provided on the blower side of the bottom wall of the sensor air passage of any one of the first to third aspects. Since the outdoor air temperature sensor is installed and the position of the outdoor air temperature sensor is further away from the outer box top plate exposed to sunlight, the influence of radiation can be further reduced and the temperature can be detected more accurately.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the present embodiment.

(Embodiment 1)
FIG. 1 is a perspective view of an outdoor unit of a separation-type air conditioner according to a first embodiment of the present invention, FIG. 2 is a plan view showing the internal configuration of the outdoor unit, and FIG. It is sectional drawing. The same parts as those in the conventional example are denoted by the same reference numerals, and the description thereof is omitted.

  In FIG. 1, the outer unit 1 includes an outer box side plate 13 and an outer box top plate 12 attached to cover the upper end of the outer box side plate 13. This is an opening provided on the wall for taking in outside air for outdoor temperature detection by an outdoor temperature sensor 8 described later.

  2 and 3, the bottom wall 10 a, the side wall 10 b, and the sensor holding unit 9 of the sensor air duct 10 are formed integrally with the electrical box 7 and installed above the heat exchanger 2. The upper wall 10c that is disposed in the sensor air passage 10 and is held by the sensor holding portion 9 and that is disposed on the sensor air passage 10 is disposed on the upper portion of the electric box 7. 11, and an opening 12 a is provided in the outer box top plate 12 near the upstream opening 10 d of the sensor air passage 10. The outer box top plate 12 is supported by the outer box side plate 13.

  The operation and action of the above configuration are as follows.

  Although the outdoor air flows into the blower chamber 4 through the heat exchanger 2 by the operation of the blower 3, a part of the air passes through the opening 12 d on the upstream side of the opening 12 a of the outer box top plate 12 and is sent to the sensor. It flows into the passage 10, passes through the vicinity of the outdoor air temperature sensor 8, and reaches the blower chamber 4. At this time, the outdoor air temperature sensor 8 detects the temperature, and the outdoor air temperature is used for operation control of the air conditioner.

  As described above, according to the outdoor unit of the separation-type air conditioner in the present embodiment, the outdoor air temperature sensor 8 is protected by being inside the outer box top plate 12, and the opening 12a of the outer box top plate 12 is protected. Because it is installed inside the sensor air passage 10 that communicates from the vicinity of the air to the blower chamber 4, the direct sunlight, the radiation from the heat exchanger 2, and the air that has passed through the heat exchanger 2 are in the vicinity of the outdoor air temperature sensor 8. Temperature misdetection due to passing through the battery can be prevented, and the electrical box 7 can be handled easily and defects can be reduced.

  Since the electrical box upper lid 11 and the upper wall 10c are integrally formed, when the electrical box 7 is covered with the electrical box upper lid 11, the sensor air passage 10 is simultaneously covered with the upper wall 10c, so that assembly is easy. It is.

(Embodiment 2)
FIG. 4 is a plan view showing the internal configuration of the outdoor unit of the separation type air conditioner according to the second embodiment of the present invention. The same parts as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  In the present embodiment, the downstream opening 10e of the sensor air passage 10 is provided at a position protruding from the end surface 7a on the blower 3 side of the electrical equipment box 7 toward the blower 3 side.

  With the above configuration, since the downstream opening 10e is closer to the blower 3, the air intake capacity of the blower 3 acts more strongly on the downstream opening 10e, and the amount of air passing through the sensor air passage 10 is increased. The temperature of the outside air can be accurately detected.

(Embodiment 3)
FIG. 5 is a plan view showing the internal configuration of the outdoor unit of the separation-type air conditioner according to the third embodiment of the present invention. The same parts as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  In the present embodiment, in addition to the second embodiment, the opening 12 a of the outer box top plate 12, the upstream opening 10 d of the sensor air passage 10, the sensor holding portion 9, and the outdoor temperature sensor 8 are connected to the blower of the electrical box 7. It is located closer to the blower 3 than the end face 7a on the 3 side. The sensor air passage 10 is the shortest straight pipe, so the ventilation resistance is reduced, and the amount of air passing through the sensor air passage 10 is further increased. The temperature can be accurately detected.

(Embodiment 4)
FIG. 6 is a plan view showing the internal configuration of the outdoor unit of the separation-type air conditioner according to the fourth embodiment of the present invention, and FIG. 7 is a cross-sectional view in the vicinity of the outdoor air temperature sensor. The same parts as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  In the present embodiment, in addition to the third embodiment, a step portion that is lowered stepwise from the portion of the bottom wall 10a located on the top of the heat exchanger 2 on the fan 3 side of the bottom wall 10a of the sensor air passage 10 is provided. 10f is provided, and the sensor holding unit 9 and the outdoor temperature sensor 8 are installed on the stepped portion 10f.

  With the above configuration, since the outdoor air temperature sensor 8 is installed at a position separated from the upper wall 10c of the sensor air passage 10, the influence of radiant heat from the outer box top plate 12 due to sunlight is reduced and the temperature is more accurately measured. Can be detected.

  As described above, the outdoor unit of the separation type air conditioner according to the present invention can protect the temperature sensor and prevent erroneous temperature detection with a simple structure, such as a blower that detects the temperature and performs operation control. It can also be applied to applications.

The perspective view of the outdoor unit of the separation type air conditioner in Embodiment 1 of this invention Plan view showing the internal configuration of the outdoor unit Sectional view of the outdoor unit near the outdoor air temperature sensor The top view which shows the internal structure of the outdoor unit of the separation type air conditioner in Embodiment 2 of this invention The top view which shows the internal structure of the outdoor unit of the separation type air conditioner in Embodiment 3 of this invention The top view which shows the internal structure of the outdoor unit of the separation type air conditioner in Embodiment 4 of this invention Sectional view of the outdoor unit near the outdoor air temperature sensor The perspective view which shows the internal structure which abbreviate | omitted some outdoor units of the conventional separation-type air conditioner

Explanation of symbols

2 Heat exchanger 3 Blower 4 Blower room 6 Electrical component 7 Electrical box 8 Outdoor air temperature sensor 9 Sensor holding part 10 Sensor air passage 10c Upper wall 11 Electrical box top cover 12 Outer box top plate 12a Opening

Claims (3)

An outer box top plate that forms the upper part of the outer shell, a heat exchanger, a blower chamber containing a blower that takes in outside air through the heat exchanger, an outdoor air temperature sensor that detects the temperature of the outside air flowing into the heat exchanger, An electrical box that houses electrical components connected to the outdoor temperature sensor, a sensor air passage that is formed integrally with the electrical box and is provided with the outdoor temperature sensor, and an upper part of the electrical box. And an electrical equipment box upper lid that is integrally extended to the upper portion of the sensor air passage , and an opening provided in the outer box top plate, and further includes a bottom wall of the sensor air passage Separation is made by providing a stepped portion that is stepped lower than the heat exchanger side on the air blower side, and installing an outdoor air temperature sensor on the stepped portion, and communicating the opening, the sensor air passage, and the air blower chamber Type air conditioner outdoor unit . An upstream opening communicating with the opening on the upstream side of the sensor air passage is provided, and a downstream opening communicating with the blower chamber is provided on the downstream side, and the downstream opening is provided on the blower side from the blower side end face of the electrical box. The outdoor unit of the separation-type air conditioner according to claim 1, which is arranged in the above. The outdoor unit of a separation type air conditioner according to claim 2, wherein the opening, the upstream opening, and the outdoor air temperature sensor are arranged closer to the blower than the blower side end face of the electrical box.

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