JP2007205647A - Outdoor unit for air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a more inexpensive and easy-to-assemble outdoor unit for an air conditioner positively holding an outdoor temperature sensor by a simple structure, and preventing erroneous temperature detection. <P>SOLUTION: By providing an electrical component box 6 arranged in the vicinity of an upper part of a heat exchanger 4, and a holding part 8 holding the outdoor temperature sensor 7 with a heat sensing part 7a arranged at the upwind side of the heat exchanger 4, covering an outer casing holding them by a lid like top board 9, integrally forming the electrical component box 6 and the holding part 8 composed to hold the heat sensing part 7 higher than the upper end 4a of the heat exchanger and at the inner side of the top board 9, and forming an opening 9a in a heat sensing part 7a in the vicinity of the top board 9 in the outdoor unit 1 of the air conditioner, the outdoor temperature sensor is protected by a simple structure, erroneous temperature detection caused by direct sunlight, radiation from the heat exchanger, air having passed through the heat exchanger or the like is prevented, handling and assembling are easy as an electrical component box single body, and reliability can be improved. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an outdoor unit of an air conditioner having an outdoor temperature sensor.

  Conventionally, this type of outdoor unit of an air conditioner has an outdoor temperature sensor that detects the temperature of the outdoor air, and a sensor fixing portion that is integrated with an electrical box that houses electrical components such as a control board to which the outdoor temperature sensor is connected. The heat exchanger is arranged on the windward side for sucking outside air (see, for example, Patent Document 1).

FIG. 8 is a perspective view in which a part of an outdoor unit of a conventional air conditioner described in Patent Document 1 is omitted. As shown in FIG. 8, a partition plate 3, a heat exchanger 4, and a blower 5 are installed on the outer box bottom plate 2 of the outdoor unit 1, and electrical components such as a control board are stored above the partition plate 3. An electrical box 6 is provided. A part of the electrical box 6 facing the heat exchanger 4 is extended to the windward side where the outside air of the heat exchanger 4 is sucked to form a sensor fixing portion 6a, and holds the heat sensitive portion 7a of the outdoor temperature sensor 7. .
JP 11-248199 A

  However, in the conventional configuration, the outdoor temperature sensor 7 and the heat sensitive part 7a are not covered with the outer box and thus are exposed to the outside, so that the outdoor temperature sensor 7 is protected and the outdoor temperature sensor 7 receives direct sunlight. In order to prevent erroneous temperature detection, a sensor cover is separately required, which increases the cost and makes the assembly complicated. Further, the sensor fixing portion 6a protrudes as an electrical box 6 before the outdoor unit 1 is assembled. Therefore, there has been a problem that defects such as deformation and breakage are likely to occur due to handling.

  The present invention solves the above-mentioned conventional problems, and protects the outdoor temperature sensor with a simple structure to prevent erroneous temperature detection, and further, an outdoor unit of an air conditioner that is easy to handle and easy to assemble as a single electrical box. The purpose is to provide.

  In order to solve the above-mentioned conventional problems, the outdoor unit of the air conditioner of the present invention includes an outdoor temperature sensor in which a heat sensitive part is arranged on the windward side of the heat exchanger, and a holding part that holds the outdoor temperature sensor, Having a lid-shaped top plate that covers the outer box to put these, and forming a holding unit that is configured to hold the heat-sensitive part above the upper end of the heat exchanger and inside the top plate, integrally with the electrical box, An opening is provided in the vicinity of the heat sensitive part of the top plate.

  As a result, the outdoor unit of the air conditioner protects the outdoor 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. Easy to handle and easy to assemble as a single unit.

  The outdoor unit of the air conditioner of the present invention protects the outdoor temperature sensor with a simple structure and prevents erroneous detection of temperature due to direct sunlight, radiation from the heat exchanger, air passing through the heat exchanger, etc. It is easy to handle and easy to assemble as a single unit, and can provide a user with a better quality air conditioner at low cost.

  The first invention includes a heat exchanger, an electrical box disposed near the upper portion of the heat exchanger, an outdoor temperature sensor having a heat-sensitive portion disposed on the windward side of the heat exchanger, and a holding unit that holds the outdoor temperature sensor. And a holding part configured to hold the heat-sensitive part above the upper end of the heat exchanger and inside the top board, integrally with the electrical box. By forming an opening in the vicinity of the heat sensitive part of the top panel, the outdoor temperature sensor is protected with a simple structure, and the temperature due to direct sunlight, radiation from the heat exchanger, air passing through the heat exchanger, etc. It is possible to provide an outdoor unit for an air conditioner that prevents erroneous detection and that is easy to handle, easy to assemble and highly reliable as a single electrical box.

  In the second invention, in particular, in the first invention, by providing a shielding plate above the heat-sensitive part of the outdoor temperature sensor, it is possible to further prevent erroneous detection of temperature caused by heating the outer box top plate due to solar radiation. Can be sure.

  In particular, the third aspect of the invention can prevent erroneous temperature detection at a lower cost by configuring the shielding plate of the second aspect of the invention integrally with the upper cover of the electrical equipment box that covers the electrical equipment box.

  The fourth aspect of the invention is particularly configured by forming the vicinity of the heat sensitive part of the top plate of the outer box of any one of the first to third aspects of the invention from the other part of the top plate to the windward side of the heat exchanger. By doing so, it is possible to secure the distance between the heat sensitive part of the outdoor temperature sensor and the surrounding parts, to reduce the influence of the temperature change of the surrounding parts, and to further prevent erroneous temperature detection.

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

(Embodiment 1)
FIG. 1 is a cutaway perspective view in which a part of an outdoor unit of an air conditioner according to the first embodiment of the present invention is omitted, and FIG. 2 is an outdoor unit of the air conditioner according to the first embodiment of the present invention. FIG. 3 is a cross-sectional view of the vicinity of the heat sensitive part of the outdoor temperature sensor of the outdoor unit of the air conditioner according to the first embodiment of the present invention. 1, 2, and 3, the same components as those in FIG. 8 of the prior art are denoted by the same reference numerals, and description thereof is omitted.

  1, 2, and 3, the outdoor unit 1 of the air conditioner includes a blower 5, a heat exchanger 4, an electrical equipment box 6 disposed near the top of the heat exchanger 4, and the wind of the heat exchanger 4. An outdoor temperature sensor 7 having a heat sensitive part 7 a on the upper side and a holding part 8 for holding the outdoor temperature sensor 7 are provided, and these are housed in an outer box composed of an outer box side plate 11 and a bottom plate 10. Moreover, it has the lid-shaped top plate 9 which covers an outer box, and the upper part of the electrical equipment box 6 is covered with the electrical equipment box upper cover 12.

  The holding unit 8 extends from the side surface of the electrical box 6 in a substantially horizontal direction on the heat exchanger 4 to the windward side of the heat exchanger 4, and the outdoor temperature sensor 7 connected to the electrical components in the electrical box 6 is The heat-sensitive part 7 a is drawn on the holding part 8 and held above the upper end 4 a of the heat exchanger 4 and inside the outer box top plate 9 on the wind of the heat exchanger 4. Further, the top plate 9 is configured by providing an opening 9 a in the vicinity of the heat sensitive portion 7 a of the outdoor temperature sensor 7.

  About the outdoor unit of the air conditioner comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, outdoor air flows into the outdoor unit 1 through the heat exchanger 4 by the operation of the blower 5, but a part of the air passes through the opening 9 a of the outer box top plate 9 and is a heat sensitive part of the outdoor temperature sensor 7. It flows into the vicinity of 7a and the outdoor temperature is detected.

  At this time, radiation from the heat exchanger 4 to the heat sensitive part 7 a of the outdoor temperature sensor 7 is blocked by the holding part 8, and the heat sensitive part 7 a of the outdoor temperature sensor 7 is winded more than the outside air suction side end 4 b of the heat exchanger 4. Thus, by installing the heat exchanger 4 above the upper end 4a of the heat exchanger 4, outdoor air that has not passed through the heat exchanger 4 can be guided to the heat sensitive portion 7a of the outdoor temperature sensor 7, and the temperature can be detected more accurately. it can.

  In addition, the outdoor temperature sensor 7 is protected inside the outer box top plate 9 and can prevent erroneous temperature detection due to direct sunlight.

  Furthermore, since the holding part 8 is formed integrally with the electrical box 6, it can be easily handled as the power box 6 as a single unit and defects can be reduced.

  As described above, in the present embodiment, the holding part of the outdoor temperature sensor in which the heat sensitive part is arranged on the windward side of the heat exchanger is formed integrally with the electrical box arranged near the upper part of the heat exchanger, Installed to hold the heat sensitive part of the outdoor temperature sensor above the upper end of the heat exchanger and inside the outer box top plate, and provided with an opening near the heat sensitive part of the outdoor temperature sensor on the outer box top plate. As a result, the outdoor temperature sensor can be protected with a simple structure to prevent false detection of temperature due to direct sunlight, radiation from the heat exchanger, air passing through the heat exchanger, etc. Therefore, it is possible to provide a higher quality air conditioner.

(Embodiment 2)
FIG. 4 is a cross-sectional view of the vicinity of the heat sensitive part of the outdoor temperature sensor of the outdoor unit of the air conditioner according to the second embodiment of the present invention. 4, the same components as those in FIGS. 1, 2, 3, and 8 are denoted by the same reference numerals, and the description thereof is omitted.

  In FIG. 4, a shielding plate 13 is provided substantially parallel to the outer box top plate 9 and is attached to the holding unit 8 so as to cover the upper part of the heat sensitive unit 7 a of the outdoor temperature sensor 7.

  In the outdoor unit of the air conditioner configured as described above, it is possible to detect the temperature more accurately by blocking the heat radiation from the outer box top plate 9 often formed of sheet metal by the shielding plate 13. it can.

  The shielding plate 13 may be integrally formed with the sensor holding unit 8.

  As described above, in the present embodiment, by providing a shielding plate above the heat sensitive part of the outdoor temperature sensor, it is possible to more reliably prevent erroneous temperature detection with a simple structure and to improve the quality of air. A harmony machine can be provided.

(Embodiment 3)
FIG. 5 is a cross-sectional view of the vicinity of the heat sensitive part of the outdoor temperature sensor of the outdoor unit of the air conditioner according to the third embodiment of the present invention. 5, the same components as those in FIGS. 1, 2, 3, 4, and 8 are denoted by the same reference numerals, and the description thereof is omitted.

  In FIG. 5, the shielding plate 13 is configured such that the electrical box upper lid 12 extends in a substantially horizontal direction and covers the heat sensitive part 7 a of the outdoor temperature sensor 7.

  In the outdoor unit of the air conditioner configured as described above, the heat radiation from the outer box top plate 9 can be blocked by the shielding plate 13 and the temperature can be detected more accurately with a simpler configuration.

  As described above, in the present embodiment, by configuring the shielding plate integrally with the electrical equipment box upper cover that covers the electrical equipment box, it is possible to more reliably prevent erroneous temperature detection with a simple structure, and to have better quality. An air conditioner can be provided.

(Embodiment 4)
FIG. 6 is a plan view in which a part of the outdoor unit of the air conditioner according to the fourth embodiment of the present invention is omitted, and FIG. 7 is a diagram of the outdoor unit of the air conditioner according to the fourth embodiment of the present invention. It is sectional drawing of the heat sensitive part vicinity of an outdoor temperature sensor.

  6 and 7, the same components as those in FIGS. 1, 2, 3, 4, 5, and 8 are denoted by the same reference numerals, and description thereof is omitted.

  6 and 7, the outer box top plate 9 is formed so as to extend from the other part of the outer box top plate 9 to the windward side of the heat exchanger only in the vicinity of the heat sensitive part 7 a of the outdoor temperature sensor 7. 9b is formed.

  In the outdoor unit of the air conditioner configured as described above, by installing the heat-sensitive part 7a of the outdoor temperature sensor 7 on the extension part 9b of the outer box top plate 9, the heat-sensitive part 7a of the outdoor temperature sensor 7 and The distance from the surrounding parts can be secured to reduce the influence of the temperature change of the surrounding parts, and the temperature can be detected more accurately.

  As described above, in the present embodiment, the vicinity of the heat sensitive part of the outdoor temperature sensor of the outer box top plate is configured to extend from the other part of the outer box top plate to the windward side of the heat exchanger. Thus, it is possible to prevent temperature erroneous detection more reliably with a simple structure and to provide a higher quality air conditioner.

  As described above, the outdoor unit of the air conditioner according to the present invention can protect the outdoor temperature sensor and prevent erroneous temperature detection with a simple structure. It can also be applied to other uses.

The fracture | rupture perspective view which abbreviate | omitted a part of outdoor unit of the air conditioner in Embodiment 1 of this invention The top view which abbreviate | omitted a part of outdoor unit of the air conditioner in Embodiment 1 of this invention Sectional drawing of the heat sensitive part vicinity of the outdoor temperature sensor of the outdoor unit of the air conditioner in Embodiment 1 of this invention Sectional drawing of the heat sensitive part vicinity of the outdoor temperature sensor of the outdoor unit of the air conditioner in Embodiment 2 of this invention Sectional drawing of the heat sensitive part vicinity of the outdoor temperature sensor of the outdoor unit of the air conditioner in Embodiment 3 of this invention The top view which abbreviate | omitted a part of outdoor unit of the air conditioner in Embodiment 4 of this invention Sectional drawing of the heat sensitive part vicinity of the outdoor temperature sensor of the outdoor unit of the air conditioner in Embodiment 4 of this invention The perspective view which abbreviate | omitted some outdoor units of the conventional air conditioner

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outdoor unit 2 Outer box bottom plate 3 Partition plate 4 Heat exchanger 5 Blower 6 Electric box 6a Sensor fixing | fixed part 7 Outdoor temperature sensor 7a Heat sensitive part 8 Holding part 9 Outer box top plate 9a Opening part 9b Extension part 10 Bottom plate 11 Outer box Side plate 12 Electrical component top cover 13 Shield plate

Claims (4)

A heat exchanger, an electrical box disposed in the vicinity of the upper portion of the heat exchanger, an outdoor temperature sensor provided with a heat sensitive part on the windward side of the heat exchanger, and a holding unit for holding the outdoor temperature sensor, A lid-shaped top plate that covers the outer box for storing them, and the holding unit configured to hold the heat-sensitive unit above the upper end of the heat exchanger and inside the top plate, An outdoor unit of an air conditioner that is formed integrally and provided with an opening in the vicinity of the heat sensitive part of the top plate. The outdoor unit of the air conditioner according to claim 1, wherein a shielding plate is provided above the heat sensitive part. The outdoor unit of the air conditioner according to claim 2, wherein the shielding plate is configured integrally with an electrical equipment box upper lid that covers the electrical equipment box. The air conditioner according to any one of claims 1 to 3, wherein the vicinity of the heat sensitive part of the top plate of the outer box is formed to extend from the other part of the top plate to the windward side of the heat exchanger. Outdoor unit.

Images