JPH0527183Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a washing machine control device in which a control board on which control components are mounted is covered with a moisture-proof material.

BACKGROUND ART As shown in FIG. 2, a conventional washing machine control device has an operation plate 2 fixed to an upper frame 1 of a washing machine body with screws, and a control device that protrudes downward from the operation plate 2. A control board 4 on which control components are mounted and a cover 5 that houses the control board 4 are fixed to the boss 3 by tightening them together with screws 6. In addition, the outer periphery of the control board 4 is covered with a moisture-proof material 7 to prevent moisture from directly adhering to components such as the switch 8, semiconductor element 9, and resistor 10 attached to the control board 4, thereby preventing malfunctions. We are working to prevent It also serves to protect the control board 4 from the excreta of pests such as cockroaches and animals such as rats, or from the bites of animals. Furthermore, the moisture-proofing material 7 is made of a transparent material so that internal wiring and contamination of foreign matter can be confirmed.

Problems to be Solved by the Invention In the above configuration, when covering the control plate with a moisture-proof material, the control plate is placed in a mold slightly larger than the control plate 4, and the moisture-proof material 7 is poured into the mold. However, the moisture-proofing material 7 is initially liquid, and due to surface tension, the material swells inside the mold along the mold, creating a swollen portion 7a. Further, since large objects such as switches inserted and attached onto the control board 4 also protrude from the moisture-proof material, meat swells up on these legs due to surface tension.

On the other hand, if the washing machine is installed in a place with high humidity such as a bathroom, and if it is attached to the operation panel with the moisture-proof material described above, moisture will condense.
Water droplets are generated on the moisture-proofing material 7, and water droplets are also generated on the moisture-proofing material 7 when washing with hot water, but since the moisture-proofing material 7 has a built-up part 7a, the water is absorbed by the moisture-proofing material. Accumulated on the upper surface of 7 and between the terminals protruding from switches etc. mounted on the control board 5, or
There was a problem that water could enter through the gaps and cause conduction, causing malfunctions.

In view of the above-mentioned problems, it is an object of the present invention to eliminate conduction between terminals and prevent malfunctions even when water droplets adhere to the upper flat surface of the moisture-proof material.

Means for Solving the Problems The present invention consists of an operation panel attached almost horizontally to the upper frame of the washing machine body, a control panel attached to the back side of the operation panel with control parts mounted thereon, and A control panel is housed therein, and a cover is installed in a horizontal direction, and a moisture-proofing material is filled in the cover to cover the control panel, and the upper surface of the moisture-proofing material is sloped to correspond to the lower side of the slope. It has a structure in which a drainage hole is formed in a part of the cover.

Effect With the above configuration, moisture condensed on the upper flat part of the moisture proof material covering the control panel flows down along the slope of the upper flat part and flows out from the drain hole of the cover, so that the moisture does not reach the control parts. It does not remain in some switches, etc., and can prevent malfunctions from occurring.

Embodiment Hereinafter, an embodiment of the present invention will be described based on FIG. In Fig. 1, 1 is the washing machine main body 12
An upper frame body 2 disposed on the upper part of the apparatus is an operation plate fixed to the upper frame body 1 with screws 11. 3
is a boss projecting downward from the operation panel 2.
4 is a control board, 5 is a cover that houses the control board 4, and 6 is a screw that fixes the control board 4 and the cover 5 to the boss 3. 7 is a moisture-proof material covering the outer periphery of the control board 4. Further, on the control board 4, a switch 8, a semiconductor element 9, and a resistor 10, which are control parts, are mounted. 13 is an inclined surface of the moisture-proof material 7. 14 is a drain hole provided in the cover 5.

In the above configuration, water droplets generated on the upper surface of the moisture-proof material 7 flow along the inclined surface 13, flow into between the moisture-proof material 7 and the cover 5, and then drip downward from the drain hole 15 of the cover 5.

Incidentally, in order to form the inclined surface 13, it is sufficient to make the mold into which the control plate 4 is placed inclined, and manufacturing can be performed extremely easily.

Further, in this embodiment, the inclined surface 13 is provided toward the front of the outer box 12, but there is no problem in facing it in any direction, including left, right, front, and back.

Although some water remains in the thickened portion of the moisture-proofing material 7, it is less than in the conventional case where the inclined surface 13 is not provided, and the problem of short circuit between terminals does not occur. Furthermore, if the operation panel 2 is provided with an inclination,
The effect is further increased and the amount of residual water can be significantly reduced.

Effects of the Invention As is clear from the description of the embodiments, the present invention has the upper flat part of the moisture-proof material covering the control panel as an inclined surface, so that moisture condensed on the upper flat part can be quickly removed. It is possible to provide a safe washing machine control device that prevents short circuits between terminals and prevents malfunctions.

[Brief explanation of drawings]

FIG. 1 is an enlarged longitudinal cross-sectional view of the main parts of a washing machine according to an embodiment of the present invention, and FIG. 2 is an enlarged longitudinal cross-sectional view of the main parts of a conventional washing machine. DESCRIPTION OF SYMBOLS 1... Upper frame body, 2... Operation board, 4... Control board, 5... Cover, 7... Moisture proof material, 13... Inclined surface.

Claims (1)

[Scope of utility model registration request] There is an operation panel attached almost horizontally to the upper frame of the washing machine body, a control panel attached to the back side of this operation panel with control components mounted, and a control panel that houses the control panel and is installed horizontally. a cover that covers the control board and is filled with a moisture-proofing material, the upper surface of the moisture-proofing material is sloped, and a drainage hole is formed in a part of the cover corresponding to the lower side of the slope. Machine control device.