JPH08145411A - Outdoor unit of air conditioner - Google Patents

Abstract

PURPOSE: To provide an outdoor unit of an air conditioner which enables preventing of solder cracking and pattern peeling by checking the deformation of a substrate provided in an electric equipment box. CONSTITUTION: Holding parts 6b which hold the other side of a substrate 6a integrated roughly in L at upper and lower points are arranged in an electric equipment box 6 provided at an upper part of a compressor to hold the substrate 6a. One side of the substrate 6a is fixed on a heat sink 7 on one side of the substrate 6a by a screw 10 inserted through an insertion hole 7a provided in the heat sink 7 and a retaining pawl 7b formed almost in a shape of L is provided at the lower end of the heat sink 7 to be held at the lower end of an opening provided in the electric equipment box 6 free to slide. Thus, to fix the heat sink 7 on the electric equipment box 6 by a screw 11 inserted therethrough, a second insertion hole 7c provided in the heat sink 7 is formed as a slot. The heat sink 7 is positioned at a position that allows no deformation of the substrate 6a to be fixed on the electric equipment box 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outdoor unit of an air conditioner, and more particularly to a mounting structure for a board mounted in an electrical equipment box.

[0002]

2. Description of the Related Art In an outdoor unit of a conventional air conditioner, a main body 1 is divided into a heat exchanger chamber and a compressor chamber by a partition plate 2 as shown in FIG. A heat exchanger 3 and a blower 4 are provided, a compressor 5 is provided in the compressor chamber, an electric equipment box 6 is provided above the compressor 5, and a large number of electric equipment boxes 6 are provided on one side of the electric equipment box 6. A heat sink 7 having fins is provided, the heat sink 7 is covered, and a heat sink cover 8 having an air passage communicating with the heat exchanger chamber is provided. As shown in FIG. 4, in the electrical component box 6, a power module 6d and a substrate 6a on which electronic circuit components are arranged are integrated by a steel plate holder 6c having a screw hole 6e formed in a substantially L shape. The upper and lower sides of the board 6a correspond to the upper and lower sides of the board 6a, and the board 6a is held by the substantially L-shaped holding portions 6b provided opposite to the electrical component box 6 while fixing one side of the board. A plurality of fixing holes 9 and an opening for providing the heat sink 7 are provided, the heat sink 7 is provided with an insertion hole 7a corresponding to the screw hole 6e and an insertion hole 7b corresponding to the fixing hole 9, and One side of the substrate 6a integrated by being screwed into the mounting hole 6e with a screw 10 inserted through the hole 7a is attached to the heat sink 7
The heat sink 7 is fixed to the electrical component box 6 by being screwed into the fixing hole 9 with a screw 11 inserted through the insertion hole 7b. With the above configuration, when there is a difference between the substantially L-shaped portion of the holder 6c and the angle of the corner portion of the electrical component box 6 corresponding to the substantially L-shaped portion, the upper and lower sides of the substrate 6a are held. When the screw 10 is held by the portion 6b and is screwed into the screw hole 6e with the screw 10 inserted through the insertion hole 7a, a force for deforming the substrate 6a is applied to the substrate 6a, and solder on the substrate 6a is applied. There is a problem that cracks and pattern peeling occur.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and a solder on the board is provided by using a mounting structure that does not apply a force that deforms the board in the electrical component box. It is an object of the present invention to provide an outdoor unit for an air conditioner in which cracks and pattern separation do not occur.

[0004]

In order to solve the above problems, the present invention divides the inside of the main body into a heat exchanger chamber and a compressor chamber with a partition plate, and a heat exchanger and a blower are provided in the heat exchanger chamber. Arranged,
The compressor chamber is provided with a compressor, and a holding part for holding the upper and lower sides of a substrate on which a power module, an electronic circuit component, and the like are integrated and arranged above the compressor, and fixing one side of the substrate. A heat sink having an insertion hole is provided with an electrical component box having an opening for fixing and fixing the heat exchanger chamber facing the heat exchanger chamber, and the one side of the board is provided with a screw inserted into the insertion hole. An air conditioner in which the same substrate is fixed to a screw hole, a second insertion hole corresponding to the fixing hole is provided in the heat sink, and the heat sink is fixed to the electrical component box by a screw inserted in the second insertion hole. In the outdoor unit, the holding portion is provided corresponding to the upper and lower sides of the other side of the substrate, the upper and lower sides of the other side of the substrate are held by the holding portion, and one side of the substrate is fixed by a screw inserted through the insertion hole. Fixed to the heat sink and the bottom edge of the heat sink A locking claw formed in a substantially L shape is provided, the locking claw is slidably held in the opening, the insertion hole is formed as a long hole, and the screw is inserted through the insertion hole. It is characterized in that the substrate is fixed to the electrical component box by being screwed into a fixing hole. Further, the locking claw is formed integrally with the heat sink. Further, a plurality of the locking claws are provided.

[0005]

With the above-mentioned structure, the mounting structure does not apply a force that deforms the board to be mounted in the electrical equipment box, and it is possible to prevent the occurrence of solder cracks and pattern peeling on the board outside the air conditioner. Become an opportunity.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described in detail below with reference to the drawings. 1 and 2, 1 is an outdoor unit main body, 2 is a partition plate that divides the main unit 1 into a heat exchanger chamber and a compressor chamber, and 3 is a heat exchanger arranged in the same heat exchanger chamber. , 4
Is a blower arranged in the same heat exchanger chamber so as to face the same heat exchanger 3, 5 is a compressor arranged in the compressor chamber, and 6 is an electrical equipment box provided above the compressor 5. The one side of the electrical component box 6 is provided with an opening for fixing a heat sink, which will be described later, to the heat exchanger chamber and a fixing hole, which will be described later.
Reference numeral 6a is a substrate provided in the electrical component box 6 and having electronic circuit components arranged therein. Reference numeral 6b is a substantially L-shaped holding portion integrally formed on one side surface of the electrical component box so as to face each other and holding the other side of the substrate 6a above and below. One side of 6c is fixed to the substrate 6a, a power module described later is provided substantially in the center, and a plurality of screw holes 6e for fixing to a heat sink described later are provided, and a holder made of a steel plate formed in a substantially L shape. Is. The holder 6c has a structure in which a power module described later and the substrate 6a are integrated. Reference numeral 7 denotes a heat sink provided on one side of the same electrical equipment box 6 so as to face the heat exchanger chamber so as to dissipate heat of the power module by providing a large number of fins. Reference numeral 7a denotes an insertion hole provided in the heat sink 7 corresponding to the screw hole 6e, and a screw described later is screwed into the insertion hole 7a and screwed into the screw hole 6e to integrally hold the other side up and down. Further, one side of the substrate 6a is fixed to the heat sink 7. Reference numeral 7b is a substantially L-shaped locking claw integrally formed at the lower end of the heat sink 7, and the heat sink 7 is slidably held at the lower end of the opening formed in the electrical component box 6. Has become. By providing a plurality of the locking claws 7b, the heat sink 7 is stably and slidably held. 7c
Is a second insertion hole formed in the heat sink 7 corresponding to a fixing hole to be described later and formed by a long hole. When the second insertion hole 7c is inserted into the second insertion hole 7c with a screw described later and is screwed into a fixed hole described later, the heat sink 7 held slidably is attached to the holder 6c in a substantially L-shape. By positioning the board at a position corresponding to the angle of the character part,
It is configured so that it can be fixed without applying a force that deforms 6a. Reference numeral 8 is a heat sink cover which covers the heat sink 7 and forms an air passage communicating with the heat exchanger chamber. Reference numeral 9 is a fixing hole corresponding to the second insertion hole 7c, which is a screw hole provided in the electric component box 6. Reference numeral 10 denotes a screw which is inserted into the insertion hole 7a and is screwed into the screw hole 6e to fix the substrate 6a integrated by the holder 6c to the heat sink 7.
Reference numeral 11 denotes a screw that is inserted into the second insertion hole 7c and screwed into the fixing hole 9 to fix the heat sink 7 to the electrical component box 6.

According to the above structure, the holding portion 6b serves to hold the substrate.
By holding the upper and lower sides of the other side of 6a and screwing into the screw hole 6e with the screw 10 inserted into the through hole 7a, the holder
The substrate 6a integrated by 6c is attached to the heat sink 7
The heat sink 7 is fixed to the heat sink 7 by being screwed into the fixing hole 9 with the screw 11 inserted into the second insertion hole 7c.
Is fixed to the electrical component box 6. At this time, the slidably held heat sink 7 is positioned and fixed at a position corresponding to the angle of the substantially L-shaped portion of the holder 6c, so that the board 6a is deformed. The outdoor unit of the air conditioner is configured so that it can be fixed without applying force, and solder cracks and pattern peeling on the substrate 6a do not occur.

[0008]

As described above, according to the present invention, solder cracks and pattern peeling on the substrate do not occur, and the number of screws for fixing the heat sink to the electrical component box is reduced. The air conditioner becomes an outdoor unit with improved cost performance.

[Brief description of drawings]

FIG. 1 is a perspective view showing an outdoor unit of an air conditioner according to the present invention.

FIG. 2 is an exploded perspective view of an electrical component box provided in the outdoor unit of the air conditioner according to the present invention.

FIG. 3 is a perspective view showing an outdoor unit of an air conditioner according to a conventional example.

FIG. 4 is an exploded perspective view of an electrical component box provided in an outdoor unit of an air conditioner according to a conventional example.

[Explanation of symbols]

 1 Outdoor unit of air conditioner 2 Partition plate 3 Heat exchanger 4 Blower 5 Compressor 6 Electrical equipment box 6a Board 6b Holding part 6c Holder 6d Power module 6e Screw hole 7 Heat sink 7a Insertion hole 7b Locking claw 7c Second insertion hole 8 heat sink cover 9 fixing hole 10 screw 11 screw

Claims (3)

[Claims] 1. A main body is divided into a heat exchanger chamber and a compressor chamber by a partition plate, a heat exchanger and a blower are arranged in the heat exchanger chamber, and the compressor is provided in the compressor chamber. The heat sink is provided with a holding portion for holding the upper and lower sides of the substrate integrated with the power module, the electronic circuit parts, etc. arranged above the compressor, and an insertion hole for fixing one side of the substrate. An electrical equipment box provided with an opening and a fixing hole facing the exchange chamber and fixing is provided, and the board is fixed to a screw hole provided on one side of the board by a screw inserted into the insertion hole, and The heat sink is provided with a second insertion hole corresponding to the fixing hole.
In an outdoor unit of an air conditioner in which the heat sink is fixed to the electrical equipment box by a screw inserted through an insertion hole, the holding portions are provided corresponding to the upper and lower sides of the other side of the substrate, and the holding portions of the substrate are provided. While holding the other side up and down, one side of the substrate is fixed to the heat sink by a screw inserted through the insertion hole,
A substantially L-shaped locking claw is provided at the lower end of the heat sink to hold the locking claw slidably in the opening, and the insertion hole is formed as a long hole to insert the insertion hole. An outdoor unit for an air conditioner, wherein the board is fixed to the electrical component box by being screwed into the fixing hole with the screw. 2. The outdoor unit for an air conditioner according to claim 1, wherein the locking claw is formed integrally with the heat sink. 3. The outdoor unit for an air conditioner according to claim 1, wherein a plurality of the locking claws are provided.