JPH10259929A - Terminal base mounting structure for air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of parts of air conditioning equipment by mounting a terminal base to which is connected a connection wire of a room unit and an outdoor unit on a printed circuit board detachably arranged in the room unit of separation type air conditioner to eliminate a wire harness for connecting the both. SOLUTION: An electric part box 10 in a room unit of a separation type air conditioner houses a main substrate 20 for a control circuit as printed circuit board inside along the internal side of the outside of the electric part box 10 and a sub substrate 80 for a power source circuit along the internal side of the inside thereof. A terminal base 30 is mounted on an inward surface of the printed circuit board 20 together with other various mounting parts 21, 22.... The terminal base 30 is electrically connected directly to the printed circuit board 20 at an upper part of a body by soldering a terminal pin 31 protruding to the rear side thereof on the printed circuit board 20. A terminal connection part 32 is located at a lower part of the terminal base 30 and a connection wire 40 is connected thereto for connection between the room unit and an outdoor unit.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure of a terminal block provided in an indoor unit for electrically connecting an outdoor unit and an indoor unit of a separate type air conditioner.

[0002]

2. Description of the Related Art In a separate type air conditioner, a terminal block is provided in an indoor unit to electrically connect the outdoor unit and the indoor unit. This terminal block is conventionally screwed to an electrical component box in the indoor unit.
Hereinafter, a conventional terminal block mounting structure will be described with reference to FIG.

An electrical component box 1 for accommodating a printed circuit board 2 and the like
Is provided on one side of the indoor unit. Electrical equipment box 1
The printed circuit board 2 is provided along one inner surface of the electrical component box 1, and the electrical component box 1 is provided for services such as repair.
It is possible to withdraw from. On the other hand, a terminal block 3 is screwed to the front of the electrical component box 1. This terminal block 3
Has a first connecting portion 3a at an upper portion and a second connecting portion 3a at a lower portion.
b. The first connection portion 3a is electrically connected to the printed circuit board 2 by a wire harness 4, and the second connection portion 3b is connected to a connection wire 5 for electrically connecting the outdoor unit and the indoor unit. Is done. Reference numeral 6 denotes a display unit attached to the front of the electrical component box 1 together with the terminal block 3, reference numeral 7 denotes a remote control light receiving unit, and reference numeral 8 denotes a switch.

[0004]

However, the conventional terminal block mounting structure as described above has the following problems.

In the separate type air conditioner, it is necessary to connect the connection wire 5 to the terminal block 3 at the time of installation. The printed circuit board 2 may be pulled out of the electrical component box 1 for service such as repair. In this case, if the printed circuit board 2 and the terminal block 3 are connected by the wire harness 4, the printed circuit board 2 Since the drawer is difficult to pull out, the terminal block 3 is often removed from the electrical component box 1.

In consideration of these operations, in the conventional terminal block mounting structure, the terminal block 3 is fixed to the front of the electrical component box 1 with screws 9. Is required, which causes an increase in the number of parts of the air conditioner.

At the time of service such as repair, as described above, when pulling out the printed circuit board 2 from the electrical component box 1, the wire harness 4 becomes an obstacle, so that the terminal block 3 may be removed from the electrical component box 1. In many cases, since the terminal block 3 is screwed to the electrical component box 1, it takes time and effort to remove the terminal block 3 and attach it later. In some cases, it is necessary to remove the wire harness 4, but the removal and subsequent attachment also require time and effort.

Since the terminal block 3 has a larger width than other components housed in the electrical component box 1, mounting the terminal block 3 in front of the electrical component box 1 increases the lateral width of the electrical component box 1,
This causes an increase in the size of the indoor unit.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and reduces the number of parts of an air conditioner by mounting a terminal block on a printed circuit board and omitting a wire harness for connecting the two. Another object of the present invention is to provide a structure for mounting a terminal block of an air conditioner, which facilitates the work of attaching and detaching a terminal block, and further enables downsizing of an indoor unit.

[0010]

In other words, the terminal block mounting structure for an air conditioner according to the present invention comprises an indoor unit and an outdoor unit mounted on a printed circuit board detachably provided in an indoor unit of a separate type air conditioner. A terminal block to which the connection wires of the unit are connected is mounted.

The detachable printed circuit board is preferably housed along one side surface in an electrical component box arranged on one side of the indoor unit in order to reduce the width of the indoor unit. Further, the mounting type terminal block can be integrated with the printed circuit board.

In the terminal block mounting structure for an air conditioner according to the present invention, since the terminal block is mounted on the printed circuit board,
The wire harness for connecting the two is omitted, and the work of attaching and detaching the wire harness is omitted. Since the printed circuit board is detachable, the terminal block is detached as the printed circuit board is detached. Therefore, the work of attaching and detaching the terminal block is also omitted.

In the case where the printed circuit board is housed along one side surface in an electrical component box arranged on one side of the indoor unit, the terminal block is also housed along one side surface of the electrical component box. Therefore, the width of the electrical component box can be significantly reduced as compared with the case where the terminal block is attached to the front of the electrical component box.

When the terminal block is integrated with the printed board, the strength of the printed board is increased because the terminal block serves as a strength member of the printed board.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of a terminal block mounting portion showing one embodiment of the present invention, and FIG. 2 is a side view of the terminal block mounting portion.

The terminal block mounting structure of the air conditioner according to the present embodiment is a terminal for accommodating the electrical component box 10 in the indoor unit in order to electrically connect the indoor unit and the outdoor unit in the separate type air conditioner. It is applied to the table 30.

The electrical component box 10 is housed at the right side end of the indoor unit, located on the side of the heat exchanger.
In the electrical component box 10, a main board 20 for a control circuit as a printed circuit board is accommodated along the inner surface on the outside (right side) of the electrical component box 10. Further, a sub-board 80 for the power supply circuit is accommodated along the inner side (left side) inner side surface. Hereinafter, the main board 20 for the control circuit is referred to as a printed board 20.

The printed circuit board 20 is supported slidably back and forth by guide grooves 11 provided on the upper and lower parts of the electrical component box 10. The surface of the printed circuit board 20 faces inward, and a terminal block 30 is mounted on the surface together with other various mounting components 21, 22,.

The mounting type terminal block 30 is different from the conventional screw-type terminal block in that it has terminal pins 31 protruding on the back side at the upper part of the body. , And the printed circuit board 20. The body is printed circuit board 2
By being adhered to the surface of the printed circuit board 20, it is firmly fixed to the surface of the printed circuit board 20. A terminal connection portion 32 is provided below the terminal block 30, and a connection wire 40 connecting the indoor unit and the outdoor unit is connected to the terminal connection portion 32. Note that a thick pattern or a jumper wire corresponding to a large current is used for the electrical connection of the terminal block 30 on the printed circuit board 20.

At the lower front of the electrical component box 10, a display unit 5 is provided.
0, a remote control light receiving unit 60, a switch 70, and the like.

The terminal block mounting structure according to the present embodiment has the following advantages as compared with the conventional terminal block mounting structure.

Since the terminal block 30 is mounted on the surface of the printed circuit board 20, a wire harness for electrically connecting both terminals is omitted. Therefore, the number of parts of the air conditioner is reduced.

When the air conditioner is installed, the connection line 40 connecting the indoor unit and the outdoor unit is connected to the terminal block 3.
Must be connected to 0. In that case, the printed circuit board 2
0 is pulled out of the electrical component box 10. Thereby, the terminal block 3
0 can be easily removed from the electrical component box 10 without removing the screws. After the connection wires 40 are connected to the terminal block 30, the terminal block 30 is set in a fixed position of the electric component box 10 simply by inserting the printed circuit board 20 into the electric component box 10. Therefore, even though the terminal block 30 has a structure that is not attached to the front of the electrical component box 10, the work of connecting the connection wires 40 to the terminal block 30 is simple.

When the printed circuit board 20 is pulled out of the electrical component box 10 during a service such as repair, the printed circuit board 20 may be pulled out as it is. Conventionally, when performing this work, since the wire harness becomes an obstacle, the terminal block 3
Although it was necessary to remove the wire harness from the electrical component box 10 and the wire harness from the terminal block 30 according to this embodiment, the terminal block 30 was mounted on the printed circuit board 20 and the wire harness was omitted. In the terminal block mounting structure, the operation of removing the terminal block 30 from the electrical component box 10 becomes unnecessary. Therefore, the work of pulling out the printed circuit board 20 from the inside of the electrical component box 10 becomes simpler than before, thereby simplifying the service work.

The depth of the terminal block 30 is smaller than its width. In the terminal block mounting structure according to the present embodiment, the terminal block 3
Since 0 faces sideways, the width of the electrical component box 10 is smaller than in the conventional case where the terminal block 30 is attached to the front of the electrical component box 10. Therefore, the width of the indoor unit can be reduced.

By bonding the terminal block 30 to the surface of the printed circuit board 20, the strength of the printed circuit board 20 is increased.

Although the body of the terminal block 30 is adhered to the surface of the printed circuit board 20 in the above embodiment, the body may be formed integrally with the printed circuit board 20. Since such a terminal block 30 functions as a strength member of the printed circuit board 20, its strength can be further increased.

In the above embodiment, the terminal block 30 is mounted on the lower portion of the printed circuit board 20 with the terminal connecting portion 32 facing downward, but the present invention is not limited to this mounting mode. Needless to say.

[0029]

As described above, in the air conditioner terminal block mounting structure according to the present invention, the terminal block is mounted on the detachable printed circuit board in the indoor unit, and thus the printed circuit board and the printed circuit board are mounted. Since the wire harness for electrically connecting the terminal block is omitted, the number of parts of the air conditioner is reduced. Since the terminal block is attached and detached when the printed circuit board is attached and detached, the connection wires between the indoor unit and outdoor unit can be easily connected to the terminal block despite the structure where the terminal block is not attached to the front of the electrical component box. Can be connected. Since the printed circuit board can be easily attached and detached during service, service work is simplified. Since the width of the electrical component box can be reduced, the size of the indoor unit can be reduced.

In the case of the terminal block mounting structure for an air conditioner according to the second aspect, the printed circuit board is accommodated along one side surface of the electrical component box, and the terminal block is mounted on the surface thereof. The width of the box is reduced particularly effectively.

According to the third aspect of the present invention, the strength of the printed board is increased by integrating the terminal block with the printed board.

[Brief description of the drawings]

FIG. 1 is a front view of a terminal block attaching portion according to an embodiment of the present invention.

FIG. 2 is a side view of the terminal block mounting portion.

FIG. 3 is a front view of a terminal block mounting portion showing a conventional terminal block mounting structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Electrical component box 20 Printed circuit board 30 Terminal block 40 Connection line between indoor unit and outdoor unit

Claims (3)

[Claims] 1. A terminal board to which a connection line between an indoor unit and an outdoor unit is connected is mounted on a printed circuit board detachably provided in an indoor unit of a separate type air conditioner. Terminal block mounting structure for air conditioner. 2. The air conditioner according to claim 1, wherein the printed circuit board is housed along one side surface in an electrical component box disposed on one side of the indoor unit. Terminal block mounting structure of the machine. 3. The terminal block mounting structure for an air conditioner according to claim 1, wherein the terminal block is integrated with a printed circuit board.