JPH08266782A - Control device of washing machine - Google Patents

Abstract

PURPOSE: To enhance the workability of attachment, maintenance or repairing when a power supply voltage substrate of high voltage of 100V or the like is separated from a low voltage substrate to be attached and to also sufficiently ensure safety from an aspect of water treatment or vibration. CONSTITUTION: In a washing machine wherein a front panel is attached to the front open part of an outer case main body in a freely detachable manner, a control unit box 9 in which a power supply voltage substrate 13 of 100V or the like is housed is attached to the peripheral edge part of the side part of the front open part and a connector housing box 15 of lead wires 14a, 14b is integrally fitted to the lower part of the control unit box 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine control unit.

[0002]

2. Description of the Related Art A fully automatic one-tub type washing machine has an outer frame structure, which is conventionally formed by integrally forming an outer box body, a rear panel, and a side panel with a material such as a synthetic resin so that the front opening is The front panel is detachably attached, and the top cover, lid, and operation panel are provided in the upper opening, and electrical components such as various switches and boards are arranged on the operation panel.

There are a high-voltage power supply voltage board such as 100 V and a low-voltage board as the board. Only the low-voltage board is provided on the upper operation panel so that the power-supply voltage board can be easily maintained. It is considered to be installed in the open part of the front surface.

When connecting the lead wire drawn from the side of the top cover to the power supply voltage board, the conventional connecting means is
It is common to tie it with the lead wire on the power supply voltage board side and a vinyl tape and fix it directly to the peripheral edge of the open part of the outer box.

[0005]

SUMMARY OF THE INVENTION With such means,
The connection of the lead wire is troublesome, and the wiring is not easily put together, and the water flowing down from the upper part of the washing machine along the lead wire may reach the connection part and the power supply voltage board, which is dangerous.

Further, when the front panel, to which the power voltage board is attached, is closed by the front panel, the vibration of the motor and the washing / dehydrating tub arranged in the outer box is transmitted through the contact surface with the front panel. May be transmitted to the equipment and affect electrical components.

The object of the present invention is to solve the above-mentioned disadvantages of the prior art and to improve the workability of installation, maintenance and repair when the power supply voltage board is installed separately from the low voltage board, and also to improve water treatment and vibration. It is to provide a control unit for a washing machine that can ensure sufficient safety in terms of the above.

[0008]

In order to achieve the above object, the present invention is, firstly, in a washing machine in which a front panel is detachably attached to a front opening portion of an outer box body, a side portion of the front opening portion. The gist of the present invention is that a control unit box accommodating a power supply voltage board is attached to the periphery, and a connector accommodating portion for a lead wire is integrally provided below the control unit box.

Secondly, the lead wire connected to the connector rises along the side of the control unit box from the upper part of the outer box body along the side edge of the front opening, and is U-shaped below the control unit box. The gist of the invention is to bend it to form a trap portion and connect it to the connector at an upper portion of the trap portion.

Thirdly, a flame-retardant cushion material is provided on either the unit box side or the front panel side between the opening peripheral edge of the control unit box and the front panel, and the control unit box is provided through the cushion material. The gist is to close the opening of the front panel with the front panel.

[0011]

According to the present invention as set forth in claim 1, a control unit box accommodating a power supply voltage board is attached to a peripheral edge of a front opening of the outer box body, and the front panel is closed to perform maintenance or the like. In this case, if you remove the front panel, you can work from the front and workability is good. Also,
At the time of mounting, the connector housing is integrally provided below the unit box, which facilitates wiring processing.

According to the second aspect of the present invention, in addition to the above function, the lead wire connected to the connector is bent in a U-shape below the control unit box to form a trap portion. By connecting to the connector at the upper part, even if the water flowing through the outer box hits the lead wire, it falls down at the trap part, so it does not enter into the connector or the substrate and the water treatment is done safely. is there.

According to the third aspect of the present invention, since the flame-retardant cushioning material is interposed between the opening peripheral edge of the control unit box and the front panel, the vibration of the motor and the washing / dehydrating tub is affected by the front surface. It is safe because it is not transmitted directly to the control unit box through the panel and is watertight.

[0014]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 is a perspective view showing an embodiment of a control unit for a washing machine of the present invention, and FIG. 2 is an exploded perspective view of a washing machine provided with the control unit of the present invention. The water receiving tank 2 is arranged inside,
A washing / dehydrating tub 3 is disposed inside the water receiving tub 2, and a top cover 5 having a lid 4 is attached to an upper opening of the outer box 1, and a rear electrical component panel 6 is attached to a rear portion of the top cover 5.
, And the front electrical component panel 7 is attached to the front.

The rear electrical component panel 6 is provided with, for example, a water supply valve, a water level sensor, a safety switch, etc., and the front electrical component panel 7 has various operation switches and a low voltage substrate of the substrates mounted on the rear surface. In addition, the opening on the front of the outer box 1
The front panel 8 is detachably covered.

In such a washing machine, the control unit of the present invention is located on the side of the open portion of the front surface, and the control unit box 9 is attached to the peripheral edge 1a of the outer box. This control unit box 9
Has an upper portion formed with an opening, and accommodates a power supply voltage substrate 13 having a high voltage such as 100 V to which a transformer 10, a capacitor 11, a heat radiating plate 12 and the like are attached. Reference numeral 14a in the drawing denotes a lead wire attached to the high voltage substrate 13.

A connector storage box 15 is integrally formed below the control unit box 9, and a connector 16a is attached to an end of the lead wire 14a.
This is arranged in the connector storage box 15. In the figure, 15a is a hook for holding the lead wire which is provided below the connector storage box 15 so as to project.

The control unit box 9
A flame-retardant cushion material 17 is provided on the unit box 9 side or the front panel 8 side between the opening edge and the front panel 8.

As described above, the connector 16 is attached to the tip.
The lead wire 14b to which the b is attached is erected from the upper part of the outer box 1 along the peripheral edge portion 1a, and the middle thereof is fixed to the peripheral edge portion 1a by a holder 18. Then, the trap portion 19 is formed by bending it in a U shape below the control unit box 9, and is hooked on the hook 15a above the trap portion 19 and then connected to the connector 16a.

The above connection is made by the connector storage box 1
All that is required is to connect the connectors 16a and 16b at 5 points, which is simple and the connection points are arranged below the control unit box 9. The trap portion 19 is fixed to the peripheral edge portion 1 a of the outer box 1 by the holder 18.

By closing the front opening of the outer box 1 with the front panel 8, the cushion material 17 is interposed between the peripheral edge of the opening of the control unit box 9 and the back side of the front panel 8. The opening of the control unit box 9 is closed by the front panel 8 to form a complete box shape.

Even if water comes in contact with the lead wire 14b along the peripheral edge portion 1a of the outer box 1 during washing, this water is trapped by the trap portion 19a.
Therefore, the water transmitted through the lead wire 14b does not infiltrate into the parts of the connectors 16a and 16b and the inside of the control unit box 9.

Further, even if vibrations of the motor and the washing / dehydrating tub 2 are transmitted to the front panel 8 through the outer case 1, the front panel 8
Since the cushion material 17 is interposed between the control unit box 9 and the control unit box 9, this vibration is not further transmitted to the control unit box 9 side. Since the cushion material 17 is made of a flame-retardant material, it is safe even if the control unit box 9 has heat.

[0024]

As described above, according to the control unit of the washing machine of the present invention, firstly, the front panel is detachably closed by the front panel for opening the control unit. If you remove the panel,
Can work from the front and has good workability. Further, at the time of mounting, since the connector storage portion is integrally provided below the unit box, the wiring process is facilitated and the connection is neat and organized.

Secondly, the lead wire connected to the connector is bent in a U-shape below the control unit box to form a trap portion, and the trap portion is connected to the connector above the trap portion to form an outer box. Even if the transmitted water falls on the lead wire, it falls down at the trap part, so it does not enter the connector or the board, and water treatment is performed, which is safe.

Thirdly, since the cushion material is interposed between the opening peripheral edge of the control unit box and the front panel, the vibration of the motor and the washing / dehydrating tub can be directly transmitted to the control unit box through the front panel. It is also safe because it is watertight. Since the cushion material is made of flame-retardant material, the control unit box is safe even if it receives heat.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a control unit box of a washing machine according to the present invention.

FIG. 2 is an exploded perspective view of a washing machine including a control unit box of the present invention. DESCRIPTION OF SYMBOLS 1 ... Outer box 1a ... Peripheral part 2 ... Water receiving tank 3 ... Washing / dehydrating tank 4 ... Lid 5 ... Top cover 6 ... Rear electrical component panel 7 ... Front electrical component panel 8 ... Front panel 9 ... Control unit box 10 ... Transformer 11 ... Capacitor 12 ... Heat sink 13 ... Power supply voltage board 14a, 14b ... Lead wire 15 ... Connector storage box 15a ... Hook 16a, 16b ... Connector 17 ... Cushion material 18 ... Retainer 19 ... Trap part

Claims (3)

[Claims] 1. A washing machine in which a front panel is detachably attached to a front open portion of an outer box body, a control unit box accommodating a power supply voltage board is attached to a side peripheral edge of the front open portion, and the control unit box A control unit for a washing machine, which is integrally provided with a lead wire connector storage portion in a lower portion. 2. The lead wire connected to the connector rises along the side of the control unit box from the upper part of the outer box body along the side peripheral edge of the front opening, and is bent into a U shape below the control unit box. The control unit of the washing machine according to claim 1, wherein a trap portion is formed by connecting to a connector at an upper portion of the trap portion. 3. A flame-retardant cushioning material is provided on either the unit box side or the front panel side between the opening edge of the control unit box and the front panel.
The control unit for a washing machine according to claim 1, wherein an opening of the control unit box is closed by the front panel via the cushion material.