JP2006200874A - Air conditioner outdoor unit - Google Patents

Abstract

[PROBLEMS] To reduce the number of parts and speed up the mounting of a sensor case while ensuring that a sensor case for storing an outside air temperature sensor is securely attached to an outdoor unit. An outdoor unit for an air conditioner that contributes to reductions in man-hours and costs is provided.
SOLUTION: Provided on a side plate on the back side of an outdoor unit housing, provided on a side surface of an outside air temperature sensor case housing an outside temperature sensor case, and an engaging portion that bulges outward. And a locking piece to be inserted.
[Selection] Figure 6

Description

  The present invention relates to an outdoor unit of an air conditioner, and more particularly to an improvement in a structure for attaching an outside air temperature sensor that detects outside air temperature.

In general, an air conditioner is provided with an outside air temperature sensor for detecting the outside air temperature in the outdoor unit, and the operation of the blower, the compressor, and the like is controlled by the outside controller according to the detected outside air temperature. Yes.
This outside air temperature sensor is attached to the outside of the heat exchanger arranged on the back side of the outdoor unit.
For example, in [Patent Document 1], a reinforcing plate is disposed on the upper surface of an outdoor heat exchanger, a recess is provided in the reinforcing plate, a sensor case containing an outside air temperature sensor is attached to the recess, and a top plate is mounted thereon. What is covered and fixed is disclosed.
JP 2004-205106 A

By the way, in the technique of the above-mentioned [Patent Document 1], since the concave portion is formed in the auxiliary plate and the sensor case is attached to the concave portion, the concave portion is provided at a position where a large amount of outside air is taken in. While the temperature can be detected and the rigidity of the outdoor unit housing can be increased by the auxiliary plate, the number of parts increases because the auxiliary plate is necessary, the parts cost increases, and the number of assembly steps increases.
Moreover, since it is necessary to wire the lead wire of the outside air temperature sensor along the auxiliary plate and connect it to the outdoor control board, it takes time for wiring work.

  The present invention has been made paying attention to the above circumstances, and the purpose of the present invention is to reliably attach the sensor case for storing the outside air temperature sensor to the outdoor unit without any additional parts. It is intended to provide an outdoor unit for an air conditioner that contributes to reduction in man-hours and costs by reducing the amount of heat and speeding up the mounting work of the sensor case.

  In order to solve the above problems and achieve the object, an outdoor unit of an air conditioning apparatus according to the present invention includes a housing that houses therein a compressor, a heat exchanger, and a blower disposed to face the heat exchanger. A body, an outside air temperature sensor that detects outside air temperature, an outside air temperature sensor case that houses the outside air temperature sensor, and a control component for driving and controlling the compressor, the blower, and the like Is mounted on the side plate on the back side of the housing, and is swelled outward. It is provided with a locking part to be taken out and a locking piece provided on the side surface of the outside air temperature sensor case and inserted into the locking part.

  According to the present invention, the sensor case for storing the outside air temperature sensor can be securely attached to the outdoor unit without the need for separate parts, the number of parts can be reduced, and the sensor case can be quickly mounted. There are effects such as contributing to cost reduction.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 is a perspective view showing the exterior of the outdoor unit, FIG. 2 is a perspective view showing the inside of the outdoor unit, and FIG. 3 is a rear view of the outdoor unit.
The outdoor unit main body 1 is a rectangular housing in a front view having a predetermined depth dimension. The outdoor unit main body 1 has a bottom plate 2 on which a blower 8, a heat exchanger 9, a compressor 10 and the like are placed, and is erected from the bottom plate 2. The front plate 3 covers the front surface, the side plates 4 and 5 cover both side surfaces, and the top plate 6 that covers the upper opening formed by the front plate 3 and the side plates 4 and 5. The top plate 6 includes a ceiling portion 6a of a flat surface portion and a fixing portion 6b that is provided so as to extend in a vertical direction from a peripheral end of the flat surface portion 6a and is fixed to the front plate 3 and the side plates 4 and 5 with screws or the like. Become.

The interior of the outdoor unit main body 1 is divided into two by a partition plate 7.
The blower 8 and the heat exchanger 9 are disposed in one chamber partitioned by the partition plate 7, and this is referred to as a heat exchange chamber 1A. The other chamber inside the outdoor unit main body 1 partitioned by the partition plate 7 is referred to as a machine chamber 1B.

The heat exchange chamber 1 </ b> A is surrounded by the front plate 3, the side plate 5, the heat exchanger 9 and the partition plate 7. A blower outlet 3b is opened in the front plate 3, a fan guard 3a is attached to the outer side of the outdoor unit casing of the blower outlet 3b, and a bell mouth (not shown) is provided on the inner side. A blower 8 is arranged at a position facing the bell mouth inside the heat exchange chamber 1A, and the blowing direction is directed to the blowout port 3b.
The heat exchanger 9 is a fin-and-tube heat exchanger including a plurality of heat radiation fins and a plurality of heat transfer tubes penetrating the heat radiation fins, and is flat along the side plate 5 and the back surface of the outdoor unit body 1. It is bent and formed in a substantially L shape as viewed, and is arranged so as to surround the blower 8. The back side of the outdoor unit body 1 facing the L-shaped long side part of the heat exchanger 9 is opened, and the side plate 5 of the outdoor unit body 1 facing the L-shaped short side part is opened with an air inlet (not shown). .

  The machine room 1 </ b> B is surrounded by one side of the front plate 3, the side plate 4, and the partition plate 7. The machine room 1B accommodates the compressor 10, the accumulator 11, valves, and piping connected to them.

  A part of the upper end of the partition plate 7 is notched, and only this portion is separated from the top plate 6 of the outdoor unit body 1. An electrical component box 12 is interposed between the notch end of the partition plate 7 and the top plate 6, and a part of the electrical component box 12 projects into the heat exchange chamber 1A, and the remaining part is located in the machine chamber 1B. To do.

  The electrical component box 12 is a box that is open at a portion located in the machine room 1B, and is attached to the outdoor unit main body 1 so that the top plate portion 12a is almost in contact with the top plate 6 of the outdoor unit main body 1. A control board (not shown) is attached over the entire back surface of the top plate 12a. On this control board, control parts for driving and controlling electric parts such as the blower 8 and the compressor 10 are mounted, and a plurality of connectors to which lead wires of the blower 8 and the compressor 10 are connected are arranged. ing.

In addition, a lead wire contact 13a of an outside air temperature sensor 13 (FIG. 5) for detecting the outside air temperature is connected to the control board. This outside air temperature sensor 13 is housed in an outside air temperature sensor case 20 and is attached to the upper part on the back side of the heat exchanger 9 located on the back side of the outdoor unit body 1.
As shown in FIG. 2, the lead wire 13a can be shortened by attaching the outside air temperature sensor case 20 to a position facing the electrical component box 12 disposed in the machine room 1B via the partition plate. Work can be done easily.

  The side plate 4 is provided such that one side thereof extends to the back surface of the outdoor unit body 1 and covers a part of the back side of the heat exchanger 9. A locking portion 4a bulging outward that locks an outside air temperature sensor case 20 to be described later is formed integrally with the side plate 4 by pressing to the rear side upper portion of the side plate 4, and this locking portion 4a. As a result, a locking space 4b is formed inside the side plate 4. A locking piece 24 of an outside air temperature sensor case 20 described later is inserted into the locking space 4b.

Next, the outside air temperature sensor case 20 will be described in detail.
4 is a perspective view of the outside air temperature sensor case 20, FIG. 5 is a perspective view showing a state in which the outside air temperature sensor case is opened, and FIG. 6 is a view showing a mounting state of the outside air temperature sensor case.
The outside air temperature sensor case 20 is a vertically long rectangular body made of a weather-resistant synthetic resin material, holds the outside air temperature sensor 13, covers the sensor holding portion 21 facing the heat exchanger 9, and the sensor holding portion 21. A box-shaped sensor cover portion 22 having an open surface facing the sensor holding portion 21 is formed integrally with the lower end portions of the sensor holding portion 21 via the hinge portion 30 so that the sensor holding portion 21 covers the sensor cover portion 22. It has become.
The sensor holding part 21 is provided with a plurality of claw parts 27 for coupling with the sensor cover part 22, and the sensor cover part 22 is provided with a hooking hole 28 into which the claw part 27 is inserted and hooked. It has been.

The sensor holding part 21 is provided with a plurality of vent holes 21a and a pair of claw parts 21b in the vertical direction. The claw portion 21b is elastically deformable, and the outside air temperature sensor 13 is inserted and fixed therein. Further, the sensor holding portion 21 is integrally provided with an upper locking piece 23 that is locked to the upper end portion of the heat exchanger 9 at the upper end portion thereof. The upper locking piece 23 includes a vertical portion 23 a that protrudes in the vertical direction from the upper end portion of the sensor holding portion 21, and a horizontal portion 23 b that is bent at a substantially right angle from the end portion of the vertical portion. The vertical portion 23a is provided with a groove portion 23c for guiding the lead wire 13a of the outside air temperature sensor 13 from the sensor holding portion 21 to the outside, and the horizontal portion 23b is provided with a holding piece 23d for holding the lead wire 13a.
In addition, the sensor holding portion 21 is provided with two pairs of sandwiching pieces 26 that project from both side end portions and sandwich the heat transfer tube of the heat exchanger 9.

  On the other hand, the cover portion 22 of the outside air temperature sensor case 20 has a box shape in which the surface facing the sensor holding portion 21 is opened as described above, and a plurality of vent holes 22a are provided on the surface facing the opening surface, Outside air is taken into the case. Further, the sensor cover portion 22 is provided with a side locking piece 24 that is locked to a locking portion 4 a provided on the side plate 4 of the outdoor unit body 1. The side locking pieces 24 are integrally provided so as to protrude in the width direction from one side edge of the sensor cover portion 22 in the longitudinal direction. In addition, a lead wire protection portion 25 that protects the lead wire 13a from the end portion of the top plate 6 fixing piece 6b is provided at the upper end portion of the sensor cover portion 22, and the lead wire protection portion 25 is opposed to the groove portion 23b. A groove portion 25a is provided at a position where the lead wire 13a is led out by the groove portion 25a and the groove portion 23b.

  In the outside air temperature sensor case 20, the outside air temperature sensor 13 is fixed to the claw portion 21b of the sensor holding portion 21 and the lead wire 13a is pulled out along the groove portion 23c, and then the sensor holding portion 21 and the sensor cover portion 22 are coupled. Thus, the outside air temperature sensor 13 is housed inside.

The outside air temperature sensor case 20 in which the outside air temperature sensor 13 is accommodated is inserted between the heat radiating fins of the heat exchanger 9 while the upper locking piece 23 is hooked on the upper end on the back side of the heat exchanger 9. By attaching the heat transfer tube, it is attached to the heat exchanger 9. At this time, the outside air temperature sensor case 20 is positioned by bringing the side locking pieces 24 of the outside air temperature sensor case 20 into contact with the rear side end plate 9 a of the heat exchanger 9.
Further, the side locking piece 24 of the outside air temperature sensor case 20 is inserted into the locking space 4 b formed by the locking portion 4 a of the side plate 4, and the lead wire protection portion 25 is fixed by the fixing piece 6 b of the top plate 6. Since it is pressed, the outside air temperature case 20 is securely fixed to the housing 1.

In the above configuration, since the outside air temperature sensor case 20 is locked by the side plate 4, it does not require a separate fixing part and is easily and reliably fixed to the outdoor unit housing 1.
Moreover, in the said structure, since the lead wire 13a is covered with the lead wire protection part 25, there is no possibility of disconnecting in contact with the edge part of the fixed piece part 6b of the top plate 6. FIG.
Moreover, in the said structure, the positioning of the attachment position of the outside temperature sensor case 20 can be performed easily by making the side part latching piece 24 of the outside temperature sensor case 20 contact | abut to the back side end plate 9a of the heat exchanger 9. FIG. .
Moreover, in the said structure, since the attachment location of the external temperature sensor case 20 is adjoining with the electrical component box 20, the lead wire 13a can be shortened and wiring work can be performed easily.

  Further, the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above-described embodiments.

The external appearance perspective view which shows the air conditioner outdoor unit based on Embodiment of this invention. The perspective view which shows the inside of the outdoor unit based on the embodiment. The rear view of the outdoor unit based on the embodiment. The perspective view of the external temperature sensor case based on the embodiment. The perspective view which shows the state which the outside temperature sensor case based on the embodiment opened The figure which shows the attachment state of the external temperature sensor case based on the embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Outdoor unit housing | casing, 4 ... Side plate, 4a ... Locking part, 7 ... Partition plate, 8 ... Blower, 9 ... Heat exchanger, 9a ... Heat exchanger back side end plate, 10 ... Compressor, 12 ... Electrical component box, 13 ... outside air temperature sensor, 13a ... lead wire, 20 ... outside air temperature sensor case, 23 ... upper locking piece, 24 ... side locking piece

Claims (3)

A housing that houses therein a compressor, a heat exchanger, and a blower disposed to face the heat exchanger; an outside air temperature sensor that is provided outside the heat exchanger and detects an outside air temperature; An outside air temperature sensor case for housing the outside air temperature sensor, and an electrical component box for housing a control board to which the outside air temperature sensor is connected, and a control part for driving and controlling the compressor, the blower and the like is mounted. In the outdoor unit of an air conditioner equipped with
Provided on the side plate on the back side of the housing and swelled outward, and provided on the side surface of the outside air temperature sensor case, and a locking piece inserted into the locking portion. An air conditioner outdoor unit characterized by the above.   The outside air temperature sensor case is provided on the upper surface side with a locking piece hooked to the upper end of the heat exchanger, and opposed to the locking piece, and the lead wire of the outside air temperature sensor is connected to the top plate of the housing The outdoor unit for an air conditioner according to claim 1, further comprising a protective unit for preventing contact with the end of the air conditioner.   The outdoor unit of the air conditioner according to claim 1 or 2, wherein a locking piece provided on a side surface of the outside air temperature sensor case is in contact with an end plate of the heat exchanger.

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