JPH08178369A - Outdoor unit for air conditioning equipment - Google Patents

Abstract

PURPOSE: To provide an outdoor unit for an air conditioning equipment which achieves a lowering of assembling cost with the curtailing of the manhour by enabling processing of an electric wire used for wiring of electric parts in stead of using a special bundling member. CONSTITUTION: Electronic parts such as a capacitor, a power transistor 4 and the like are housed into a bottomed box-shaped electric part box 1 and a printed board mounting plate 2 is provided from the top surface side thereof to confine an excess in length of an electric wire 13 into a lower part thereof. An electric wire holding member is provided at a periphery part of the printed board mounting plate 2 and the electric wire is bundled to retain. The printed board mounting plate 2 is provided with a radiation hole and a recessed part 12 is provided on a bottom surface of the electric part box 1 to arrange a reactor 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outdoor unit for an air conditioner having an electrical equipment box containing capacitors, power transistors and the like.

[0002]

2. Description of the Related Art FIG. 3 is a front view showing an outdoor unit of a conventional air conditioner having an electric equipment box 31 for accommodating capacitors, power transistors and the like. In this outdoor unit, the electric component box 31 is arranged on the upper right side inside the casing, and the reactor 35 is arranged on the lower right side inside the casing while avoiding the compressor 45, the fan 47, and unillustrated pipes and the like. Has been done. In the figure, reference numeral 46 is a blowout panel provided on the front surface of the casing.

FIG. 4 is a perspective view showing the electric component box 31. The electrical equipment box 31 has an open top surface, and capacitors 33a, 33b, 33c, a power transistor 34, a printed board 36a, and the like are arranged inside thereof, and another printed board 36b is arranged on its side surface. Has been done. The electric components such as the capacitors 33a, 33b and 33c, the power transistor 34, and the printed boards 36a and 36b are wired by a large number of electric wires 43 by utilizing the open upper surface of the electric component box 31, and a large number of these electric wires 43. Are bound by a binding member 32 for stable routing and the like. In the figure, 37 is a connector for connecting the electric wire 43 to the printed board 36b, 41 is a radiation fin of the power transistor 34, and 46 is a terminal board.

[0004]

In the above conventional example, the processing of the electric wire 43 for wiring between the capacitors 33a, 33b, 33c, the power transistor 34, and the electric components such as the printed boards 36a, 36b is performed by the binding member 32. Is done using. Therefore, in the assembling process, a process of binding the electric wires 43 using the binding member 32 and cutting off one end of the extra binding member 32 after binding is required. Therefore, there is a problem that the number of man-hours is increased and the assembling cost of electrical components is increased.

Further, during service work, it is necessary to remove the binding member 32 for inspection or replacement of electrical components. Therefore, also in this case, the same man-hours as those at the time of the above-mentioned assembly are required for the re-assembly, and the electric wire
Since 3 is a large number, strict care must be taken to bind them back together, and there is a problem that service at the place of going is difficult. If incorrect binding is performed in this case, the position of each of the bundled electric wires 43 will be different from the original position, so that unreasonable tension is applied to the tip portion of the electric wire 43 or the electric wire 43 having an extra length is added. There was also a problem that was left in the indoor unit in an unstable state.

The present invention has been made in order to solve the above-mentioned conventional drawbacks, and an object thereof is to be able to appropriately treat the above-mentioned electric wire without using a special binding member and reduce the number of steps. Another object of the present invention is to provide an outdoor unit for an air conditioner that can reduce assembly costs.

[0007]

Therefore, an outdoor unit of an air conditioner according to claim 1 is a capacitor 3 and a power transistor 4.
Has an electrical component box 1 in the shape of a box with a bottom, which stores electrical components such as
The printed board mounting plate 2 is provided on the opening side of the electrical component box 1,
It is characterized in that the electric wire 13 arranged inside the electric component box 1 is restricted by the printed board mounting plate 2 from protruding to the outside of the electric component box 1.

An outdoor unit for an air conditioner according to a second aspect is characterized in that the printed board mounting plate 2 is provided with electric wire holding members 15 and 16 for holding the electric wires 13 in a bundle.

Further, the outdoor unit of the air conditioner according to claim 3 is:
The electric wire holding members 15 and 16 are characterized in that they are arranged on the peripheral portion of the printed board mounting plate 2.

An outdoor unit for an air conditioner according to a fourth aspect is characterized in that a heat dissipation hole 17 is provided in the printed board mounting plate 2.

An outdoor unit for an air conditioner according to a fifth aspect is characterized in that the electric equipment box 1 is provided with a concave portion 12 and the reactor 5 is arranged in the concave portion 12.

[0012]

In the outdoor unit for an air conditioner according to the first aspect, the printed board mounting plate 2 restricts the electric wires 13 arranged inside the electric component box 1 from projecting outside. Therefore, the number of steps for properly treating the electric wire 13 can be reduced, and the assembly cost can be reduced. Further, since the electric wire can be appropriately processed by a simple work of mounting the printed board mounting plate, it is possible to reduce man-hours during service work and improve serviceability.

Further, in the outdoor unit of the air conditioner according to claim 2,
The electric wire holding members 15 and 16 are provided on the printed board mounting plate 2. Therefore, it is not necessary to separately use a special member for binding the electric wires 13, and it is possible to further reduce the number of steps and further reduce the assembly cost.

Further, in the outdoor unit for an air conditioner according to a third aspect of the present invention, the electric wire holding members 15 and 16 are attached to the printed board mounting plate 2.
It is provided at the peripheral portion of. Therefore, connect the wire 13 to the electrical component box 1
Therefore, the outdoor unit can be easily assembled.

In the outdoor unit for an air conditioner according to a fourth aspect, the printed board mounting plate 2 is provided with a heat dissipation hole 17. Therefore, it is possible to effectively dissipate the heat generated from the electric components inside the electric component box 1 to the outside.

In the outdoor unit of the air conditioner according to the fifth aspect, the reactor 5 is arranged in the recess 12 of the electrical component box 1. Therefore, the wiring to the reactor 5 can be shortened to simplify the structure, and the outdoor unit can be made compact.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A concrete embodiment of an outdoor unit for an air conditioner according to the present invention will be described in detail with reference to the drawings.

FIG. 1 (a) is a plan view of an electrical component box 1 for accommodating electrical components such as capacitors and power transistors and provided in the outdoor unit. A section taken along the line A-A 'is shown in FIG. 1 (b). ). As shown in both figures, the electric component box 1 is in the shape of a box with a bottom, and capacitors 3a and 3b are horizontally arranged on the right side portion of the bottom surface thereof.
On the bottom surface on the left side of the condenser 3a, the fin hole 10
Radiating fins 11 to which the power transistors 4 are attached are provided in the fin holes 10 with their upper sides inclined to the left. In addition, a concave portion 12 having an open upper surface is formed on the bottom surface of the fin hole 10 on the front side in the drawing, and the reactor 5 is arranged in the concave portion 12 by a fixture not shown. Further, a printed board mounting plate 2 is mounted above these electrical components from above the open top side of the electrical component box 1 by mounting screws 21 ... 21 so as to cover the electrical components. ing.
The printed board 6 is mounted on the left side of the upper surface of the printed board mounting plate 2 by the mounting tools 22.

FIG. 2A is a plan view of the printed board mounting plate 2. The printed board mounting plate 2 is provided with a plurality of heat dissipation holes 17 at positions which are located above the power transistors 4 when the printed board mounting plate 2 is mounted on the electrical component box 1.
In addition, the convex portion 18 surrounds the heat dissipation hole 17.
Is provided, and when the printed board 6 is mounted on the upper surface of the printed board mounting plate 2, the convex portion 18 regulates the close distance between the printed board 6 and the printed board mounting plate 2 (see FIG. 1 (b)). This regulation ensures the opening of the heat dissipation hole 17, and the heat generated from the electrical component centering on the power transistor 4 is directed from below the printed board mounting plate 2 to the opened upper face of the electrical component box 1. Therefore, it can be effectively and surely dissipated. Further, wire clamps 15a, 15b and wire locking portions 16a, 16b are provided on the peripheral edge of the printed board mounting plate 2 as wire holding members that bundle and hold a plurality of wires 13 (see FIG. 1). There is. Figure 2
(B) is a side view of the printed board mounting plate 2 as seen from the direction indicated by arrow A in FIG. 1 (a). As shown in the figure, the wire locking portions 16a, 16b are printed on the printed board. It is provided so as to project upward from the plate mounting plate 2, and a clamp for locking the electric wire 13 is formed at the upper end portion thereof. 2A and 2B, 23 is a screw hole, and 24 is a mounting hole for inserting the printed board mounting tool 22 (see FIG. 1) from the lower surface side.

Next, the processing of wiring by the electric wire 13 will be described. The capacitors 3a and 3b, the power transistor 4, the printed board 6, the reactor 5 and the like are wired using the electric wires 13, respectively.
3 has a length with some allowance in consideration of workability during assembly and service. Therefore, when the assembly is completed, the excess electric wires 13 are present in the vicinity of the electric components in an unstable mounting state. Therefore, these electric wires 13 should be covered from the upper surface side of the electric component box 1. The printed-circuit board mounting plate 2 mounted on the lower side is stored below the printed-circuit board mounting plate 2. As a result, the electric wire 13 left in an unstable mounting state can be confined inside the electrical component box 1, and the work is performed by the mounting work of the printed board mounting plate 2. No special wire treatment process is required, and the number of assembly steps can be reduced.
Moreover, since the electric wire 13 is simply confined below the printed board mounting plate 2, there is no possibility that unreasonable tension will be applied to the mounting portion at the tip of one of the electric wires 13 by careless processing. Therefore, it can be said that service work can be easily performed.

From below the printed board mounting plate 2,
When the electric wire 13 is drawn to the upper surface side, the electric wire clamp 15 provided on the peripheral portion of the printed board mounting plate 2 is used.
A and 15b are locked and bundled (see FIG. 1 (a)). By doing so, no special binding member is required, and the number of steps for binding and processing the binding member can be reduced.

Further, the electric wire 13 is also connected to a not-shown terminal board or the like arranged on the outer surface of the electric component box 1 or the like. In this case, the electric wires 13 are bundled by the electric wire locking portions 16a and 16b and guided to the outside of the electrical component box 1 (see FIG. 1). Since the electric wire locking portions 16a and 16b are provided on the peripheral portion of the printed board mounting plate 2, the electric wire 13
Can be easily guided to the outside of the electrical component box 1, and therefore the outdoor unit can be easily assembled.

Further, as described with reference to FIG. 1, the reactor 5 is arranged in the recess 12 provided on the bottom surface of the electrical component box 1. Therefore, the wiring to the reactor 5 can be shortened, and the electrical equipment box 1 to which the reactor 5 is attached can be unitized in advance, so that the structure of the outdoor unit is simplified and its assembly is facilitated. It is possible to achieve compactness.

Although specific embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications can be made within the scope of the present invention. For example, the printed board 6 is mounted only on the upper surface of the printed board mounting plate 2, but it may be mounted on the lower surface of the printed circuit board while ensuring the heat dissipation of the electrical components. You may make it attach also to a location. Further, although the recessed portion 12 substantially corresponds to the shape or size of the reactor 5 as shown in FIG. 1, such a correspondence is not necessarily required if the reactor 5 can be arranged.

[0025]

As described above, in the outdoor unit for an air conditioner according to the first aspect of the present invention, the printed board mounting plate restricts the electric wires arranged inside the electrical component box from protruding to the outside. Therefore, the number of steps for properly treating the electric wire can be reduced, and the assembly cost can be reduced. Further, since the electric wire can be appropriately processed by a simple work of mounting the printed board mounting plate, it is possible to reduce man-hours during service work and improve serviceability.

Further, in the outdoor unit of the air conditioner according to claim 2,
An electric wire holding member is provided on the printed board mounting plate. Therefore, it is not necessary to separately use a special member for binding the wires, and it is possible to further reduce the number of steps and further reduce the assembly cost.

Furthermore, in the outdoor unit for an air conditioner according to a third aspect of the present invention, the electric wire holding member is provided on the peripheral portion of the printed board mounting plate. Therefore, the electric wire can be easily pulled out of the electrical component box, and the assembly of the outdoor unit can be facilitated.

In the outdoor unit for an air conditioner according to a fourth aspect of the present invention, the printed board mounting plate is provided with heat dissipation holes. Therefore, it is possible to effectively dissipate the heat generated from the electric components inside the electric component box to the outside.

In the outdoor unit of the air conditioner according to the fifth aspect, the reactor is arranged in the concave portion of the electric component box. Therefore, the wiring to the reactor can be shortened to simplify the structure, and the outdoor unit can be made compact.

[Brief description of drawings]

FIG. 1 is a plan view (a) and an AA ′ sectional view (b) of an electrical component box according to an embodiment of the present invention.

FIG. 2 is a plan view (a) and a side view (b) of a printed board mounting plate provided in the electrical component box.

FIG. 3 is a transparent front view of an outdoor unit of a conventional example.

FIG. 4 is a perspective view of an electrical component box in a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electrical component box 2 Printed board mounting plate 3 Capacitor 4 Power transistor 5 Reactor 12 Recessed portion 13 Electric wire 15 Electric wire clamp 16 Electric wire locking portion 17 Heat dissipation hole

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Yoshiaki Okubo Yoshiaki Okubo 1000-2 Otani, Okamoto-cho, Shiga Prefecture Daikin Industry Co., Ltd. Shiga Works (72) Inventor Hiroshi Nakamura 1000 Otani, Okamoto-cho, Kusatsu-shi, Shiga Prefecture No. 2 Shiga Works of Daikin Industries, Ltd.

Claims (5)

[Claims] 1. An electric component box (1) in the shape of a box with a bottom, which stores electric components such as a capacitor (3) and a power transistor (4), and is printed on the opening side of the electric component box (1). The board mounting plate (2) is provided, and the electric wire (13) arranged inside the electric component box (1) is restricted by the printed board mounting plate (2) from protruding to the outside of the electric component box (1). An outdoor unit of an air conditioner characterized by the above. 2. An electric wire holding member (15) (1) for holding electric wires (13) bundled on the printed board mounting plate (2).
The outdoor unit for an air conditioner according to claim 1, further comprising: 6). 3. The electric wire holding member (15) (16),
The outdoor unit for an air conditioner according to claim 2, wherein the outdoor unit is arranged on a peripheral portion of the printed board mounting plate (2). 4. The outdoor unit for an air conditioner according to claim 1, wherein the printed board mounting plate (2) is provided with a heat dissipation hole (17). 5. The air according to claim 1, wherein a recess (12) is provided in the electrical equipment box (1), and a reactor (5) is arranged in the recess (12). An outdoor unit of a harmony machine.