JPH0416088Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a heat exchange unit in which an evaporator and an electrical box are housed side by side within the main body.

(b) Prior Art Conventionally, a structure of this type of heat exchange unit is disclosed in Japanese Utility Model Application Publication No. 60-108939.

The air conditioner shown in this publication has a heat exchanger and electrical components lined up in the main body, a temperature sensing element attached to the heat exchanger, and wiring extending from the temperature sensing element connected to the electrical components. It's summery.

(c) Problems that the invention aims to solve In such a structure, if the electrical components to which the wiring is connected are installed at a lower position than the temperature sensing element, and the heat exchanger is also used as an evaporator, There was a risk that dew adhering to the heat exchanger would travel along the wiring and be led to electrical components, causing insulation failure in these electrical components.

The purpose of the present invention is to make it difficult for dew from the heat exchanger to be conducted to electrical components arranged next to the heat exchanger, thereby making it difficult for the electrical components to suffer insulation defects.

(d) Means for solving the problem In order to achieve this objective, the present invention arranges a heat exchanger and an electrical box in the main body, and a ground wire connection part is provided on the electrical box side of the heat exchanger. The electrical equipment box is provided with a positioning section for this ground wire above this connection section.

(E) Function The positioning part of the ground wire of the electrical box is provided above the connection part of the heat exchanger ground wire, so the ground wire extends upward from the connection part, and the dew attached to the heat exchanger is removed from this position. This makes it difficult for the signal to be transmitted to the ground wire.

(F) Embodiment The drawing shows a heat exchange unit of the present invention, and 1 is an indoor heat exchange unit of a separate air conditioner, the rear side 2 of which is installed on an indoor wall. 3
Reference numeral 4 indicates a suction grill formed in the upper part of the main body of the heat exchange unit, 4 indicates a discharge port formed in the lower part of the main body, and a wind direction changing blade 5 is disposed at the discharge port. Reference numeral 6 denotes a plate-fin type heat exchanger built into the main body, and a tube plate 7 is provided on the side of the heat exchanger, from which a U-shaped tube 8 protrudes.
Reference numeral 9 denotes a connection piece (connection part) for a ground wire (described later), which is projected laterally from the upper part of the tube plate 7 integrally with the tube plate.

Reference numeral 10 is an electrical equipment box arranged on the right side of this heat exchanger 6, and the front side is open. Although not shown, electrical components are housed inside the electrical component box. Reference numerals 11 denote both left and right edges 12 and 13 of this electrical box 10.
A lamp (not shown) is provided on the display board attached over the entire length. Reference numeral 14 denotes a terminal plate attached to the lower part of the electrical equipment box 10, and an insertion opening 15 and a ground wire mounting screw 16 are provided on the lower surface of the terminal plate. An inter-unit cord (not shown) from the outdoor heat exchange unit is inserted into the insertion port 15, and a ground wire (not shown) from the outdoor heat exchange unit is attached to the mounting screw 16. A lead wire 17 connected to the terminal board 14 is led into the interior of the electrical equipment box 10 through an opening 18 in the electrical equipment box 10.

Reference numeral 19 denotes a U-shaped groove formed on the left edge 12 and right edge 13 of this electrical box, and this groove 19 is connected to the heat exchanger 6.
It is located above the connecting piece 9 of. 20 is a ground wire, and one end 21 is connected to the connecting piece 9 of the heat exchanger 6 with a screw 22. And this ground wire 2
0 is fitted into the two grooves 19 and the electrical equipment box 10
and then cross the right side 23 of this electrical equipment box 10.
It is suspended along the This hanging ground wire 20 is guided into the box through an opening 24 on the right side 23 and connected to the terminal plate 14 through the opening 24.

Reference numeral 25 denotes a lid that covers the terminal plate 14 and is detachably attached to the lower surface 26 of the heat exchange unit 1. When installing the heat exchange unit, use this lid 2.
5 and connect the inter-unit wiring and ground wire to this terminal board from below the heat exchange unit 1. Of course, after connecting the inter-unit wiring and the ground wire to the terminal board 14, the terminal board 14 is covered with the lid 25.

In such a heat exchange unit 1, when the heat exchanger 6 is operated as an evaporator, dew adheres to the heat exchanger 6. A portion of the dew adhering to the connection piece 9 of the tube plate 7 is transmitted to the ground wire 20. However, this ground wire 20 is connected to the groove 19 of the electrical equipment box 10.
Since the wire is led above the connection piece 9 by the ground wire 20, dew flows into the electrical box 10
There is no risk of it getting inside.

Moreover, since this ground wire 20 is arranged from the top of the electrical equipment box 10 along the right side surface 23, it is possible to use a device that, for example, stores a device that can change the frequency of the power input to a compressor in the electrical equipment box 10. , there is little possibility that the power supply line or signal line inside the electrical equipment box 10 will come into contact with the ground line 20. Therefore, even if a current flows through the ground wire 20, the signals flowing through the power supply line and the signal line are not easily affected by this current, and there is little risk of interfering with the operation of the compressor.

(g) Effects of the invention As described above, according to the invention, a heat exchanger and an electrical box are arranged in a heat exchange unit, and a ground wire connection part is provided on the electrical box side of the heat exchanger. Since the electrical equipment box is provided with a positioning section for the ground wire above this connection section, the ground wire connected to the connection section is routed upward from this connection section by the positioning section. Therefore, it is possible to reduce the risk that dew adhering to the heat exchanger will be guided to the electrical components through the ground wire, and that the electrical components will suffer from poor insulation due to the dew.

[Brief explanation of the drawing]

The drawing is a partially sectional perspective view showing the main parts of the heat exchange unit of the present invention. 1...Heat exchange unit, 6...Heat exchanger, 9...
... Connection piece (connection part), 10 ... Electrical box, 19 ...
Groove (positioning part), 20... Earth wire.

Claims (1)

[Scope of utility model registration request] In a heat exchange unit in which a heat exchanger that acts as an evaporator and an electrical box containing electrical components are arranged side by side in the main body, a ground wire connection part is connected to the electrical box side of the heat exchanger. A heat exchange unit characterized in that the electrical equipment box is provided with a positioning portion for the ground wire above the connection portion.