JPH0236015Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a heat exchange unit in which an electrical board is disposed at a corner of a housing.

(b) Prior art An example of an installation structure for electrical components that incorporates a heat exchanger, blower, compressor, etc. into a housing and controls these devices is as shown in Japanese Utility Model Application Publication No. 101871/1987. something is disclosed.

According to this content, an electrical board to which electrical components are attached is composed of an upper surface corresponding to the top plate of the casing and a side surface corresponding to the side plate of the casing, and this electrical board is located at a corner of the casing. I'm letting you do it. Capacitors, relays, printed circuit boards, etc. are fixed to the top surface. On the other hand, electrical components such as terminal boards for connecting wiring from the outside of the casing are fixed to the side surface.

In recent years, control of compressors, blowers, etc. has become more complex, and a large number of electrical parts have become necessary.
For this reason, a drawback has arisen in that these electrical components cannot be fixed only to the upper surface of the electrical equipment board.

(c) Purpose of the invention The purpose of the invention was to bend the electrical equipment board to form the side surface to which electrical components are fixed, and also to enable a large number of electrical parts to be fixed to the top surface of the electrical equipment board.

(d) Structure of the device The electrical board is composed of an upper surface corresponding to the top plate of the casing and a side surface corresponding to the side plate of the casing. Electrical parts are attached to the raised piece.

(E) Embodiment In FIG. 1, numeral 1 is an outdoor unit of a separate air conditioner, and numeral 2 is a bottom plate on which a partition plate 5 is erected to partition a heat exchange room 3 and a machine room 4. In the heat exchange chamber 3, a plate-like plate-fin type heat exchanger 6 is installed.
and a drum-shaped heat exchanger 7 with needle-like fins, and a compressor 8 is disposed in the machine room 4, respectively. 9 is a valve stand fixed to the rising wall 10 of the bottom plate 2.

Reference numeral 10 denotes an electrical equipment plate composed of an upper surface 10a and a side surface 10b, and is used to fix a locking piece 11 on the upper surface 10a to a front edge recess 12 of the partition plate 5. As shown in FIG. 2, a first relay 12, a capacitor 13, a transformer 14, and a printed circuit board 15 are fixed to this upper surface 10a. A terminal plate 1 is installed on the side surface 10b.
6 is fixed. Reference numeral 17 denotes a cut-and-raised piece with a part of the side surface bent upward, and a rising piece 19 having an opening 18 (see Fig. 3) at the tip of this cut-and-raised piece.
is molded. In FIG. 3, reference numerals 20 and 21 indicate a second relay and a third relay, and the recess 23 of the right piece 22 of each relay is engaged with the rising piece 19, and the recess 25 of the left piece 24 is fixed with a screw 26. 27 is an opening formed by forming the cut-and-raised piece 17.

Reference numeral 28 denotes an outer box, which is placed over the bottom plate as shown by the solid arrow after fixing the heat exchangers 6, 7, the compressor 8, and the electrical equipment plate 10 to the bottom plate 2 and the partition plate 5. Standing wall 29 of bottom plate 2
They are fixed to each other with screws (not shown). When the outer box 28 is placed over the bottom plate 2 in this way, the upper surface 10a of the electrical equipment board 10 is opened as shown in FIG.
corresponds to the top plate of the outer box 28, and the side surface 10b corresponds to the outer box 2.
Corresponds to the side plate of 8. Further, the terminal plate 16 faces an opening 30 of the outer box 28. 31 is outer box 2
The above-mentioned heat exchangers 6 and 7 are placed on the top, right side, and back side of 8.
The intake port 32 is bored to correspond to the outer box 2.
This is an electrical equipment cover that closes the opening 30 of No. 8.

33 is a fan for a heat exchanger, 34 is a motor for driving this fan, and 35 is a mounting plate to which a flange piece of this motor is fixed.It is formed in a substantially U-shape in cross section, and the outer walls 36 at both ends are attached to drum-shaped needle fins. It is brought into contact with the inner circumferential surface 37 of the heat exchanger 7, and the heat exchanger 7 with needle-like fins is held between the mounting plate 35 and the inner wall of the outer box 28. Both upper and lower ends 38 and 39 of this mounting plate 35 are fixed to the front edge inclined surface 40 of the outer box 28 and the concave surface 41 of the rising wall 29 of the bottom plate 2 with screws 42, respectively, as shown by the dashed-dotted line arrows. . Note that 43 is an auxiliary metal fitting for fixing the drum-shaped needle-finned heat exchanger 7 to the partition plate.

Reference numeral 44 indicates a front panel that closes the front opening of the unit 1 formed by assembling the bottom plate 2 and the outer box 28, and 45 indicates a perforation hole 46 in this front panel.
In particular, the screw hole 47 of this blow-out grill and the screw hole 48 of the front panel 44 are
and the screw hole 49 of the mounting plate 35 with the screw 50.
They are designed to be tightened together as shown by the dashed line arrow in the figure.

Assemble the outdoor unit 1 in this way,
When the fan 33 is rotated, air located outside the outdoor unit 1 is sucked into the machine room 4 through the vent 51 of the bottom plate 2, as shown by the solid arrow in FIG. 4, thereby cooling the machine room 4. This air is then led into the heat exchange chamber 3 via the opening 52 in the partition plate 5. Further, the hot air trapped above the electrical equipment board 10 is guided to the opening 27 of the electrical equipment board 10 and flows into the machine room 4, as shown by the solid arrow. Then, it flows into the heat exchange chamber 3 together with the above-mentioned external air.

(f) Effects of the invention This invention consists of an electrical board consisting of an upper surface corresponding to the top plate of the casing and a side surface corresponding to the side plate of the casing. Electrical parts are attached to the cut and raised pieces.
Therefore, by forming the cut-and-raised pieces, the area on which electrical components can be attached is widened, and a large number of electrical components can be fixed to this electrical equipment board. or,
An opening is made in the electrical equipment board by forming the cut-and-raised piece.
It can be used as an air vent to cool electrical components.

[Brief explanation of the drawing]

The drawings show a heat exchange unit according to an embodiment of the present invention, FIG. 1 is an exploded perspective view of the unit, FIG. 2 is an exploded perspective view showing the attachment relationship between the electrical board and the electrical components, and FIG. 2 is an enlarged view of the main parts, and FIG. 4 is a front view of the heat exchange unit with the front panel removed. 1...Heat exchange unit, 10...Electrical board, 10
a...Top surface, 10b...Side surface, 17...Cut out piece.

Claims (1)

[Scope of utility model registration request] The electrical equipment board located at the corner of the casing is composed of an upper surface corresponding to the top plate of the casing and a side surface corresponding to the side plate of the casing, and a cut-out piece is formed on a part of this side surface. A heat exchange unit characterized by: