JPH08164296A - Washer - Google Patents

Abstract

PURPOSE: To reduce the number of parts required for fitting a circuit board and a power switch or simplify a work and at the same time, simplify or otherwise a wiring work as well. CONSTITUTION: This washer has a mounting case 14 where a circuit board mounting section 15 (i.e., AC circuit board mounting section 17 and DC circuit board mounting section 18) is integrated with a power switch mounting section 16. This case 14 is fitted to a washer body (i.e., top cover 9), with the circuit boards (AC and DC circuit boards) and a power switch 12 respectively fitted to both mounting sections 15 and 16 thereof. As a result, the single case 14 can accommodates parts to be fitted, and a mounting work also becomes a single work required necessary for mounting the case 14. In this case, the connection of the circuits boards to the power switch 12, or the connection of a connector to the switch 12 can also be provided easily by use of a short lead wire, without any need of wiring along the washer body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine having an improved structure for mounting a circuit board on which various electronic components for operation control are mounted and a power switch.

[0002]

2. Description of the Related Art Conventionally, a washing machine provided with a circuit board on which various electronic components for operation control are mounted and a power switch. In this structure, the circuit board and the power switch are separately attached to the main body of the washing machine via their own attachment parts.

[0003]

According to the above-mentioned prior art, the mounting of the circuit board and the power switch requires dedicated mounting parts, and further the mounting work is separately required.
In addition, it is necessary to lay the lead wires connecting the circuit board and the power switch along the main body of the washing machine, which increases the cost as a whole.

The present invention has been made in view of the above circumstances, and therefore an object thereof is to reduce the number of parts required for mounting a circuit board and a power switch, to simplify the work, and to further improve the wiring work. It is to provide a washing machine that can be simplified.

[0005]

In order to achieve the above object, in a washing machine of the present invention, a circuit board mounting portion for mounting a circuit board on which various electronic components for operation control are mounted and a power switch for mounting a power switch. It is characterized in that it has a mounting portion integrally formed, and has a mounting case that can be mounted on the main body of the washing machine with the circuit board and the power switch mounted on both mounting portions.

In this case, the mounting case has a bank for preventing the outflow of the moistureproof filler around the circuit board mounting portion, and the power switch is detachably mounted on the power switch mounting portion. Good to be The circuit board is composed of an AC circuit board and a DC circuit board, and the circuit board mounting portion of the mounting case separates the AC circuit board mounting portion for mounting the AC circuit board from the DC circuit board mounting portion for mounting the DC circuit board. And a cover for covering the AC circuit board may be coupled to the AC circuit board mounting portion.

Further, it is preferable that the mounting case has an AC circuit board mounting portion and a power switch mounting portion separated from each other at both ends, and the respective bottom portions thereof are formed at substantially the same depth position. In addition, it is preferable that the mounting case separates the AC circuit board mounting portion and the DC circuit board mounting portion from each other by providing a step, and has reinforcing walls on both the front side and the back side of the step portion.

On the other hand, the lead wire connected to the power switch may be fixed at a position lower than the connection terminal in front of the connection terminal of the power switch, or may be passed inside the mounting case.
Further, it is preferable that the power switch mounting portion of the main body of the washing machine has a flame retardant sheet, and the flame retardant sheet is fixed by being sandwiched between the power switch mounting portion of the mounting case or the power switch and the washing machine body. Further, it is preferable that the washing machine main body is provided with a protrusion that comes into contact with the power switch mounting portion of the mounting case or the base portion of the power switch to regulate the position thereof.

[0009]

According to the above means, the circuit board and the power switch can be simultaneously attached to the main body of the washing machine with one attachment case, and the wiring between both can be short and simple. In that case, in particular, the mounting case is provided with a bank for preventing the outflow of the moisture-proof filling material around the circuit board mounting portion, and the power switch is detachably mounted on the power switch mounting portion. Then, the moisture-proof treatment of the circuit board can be made as desired without wasting the filler, and
You can easily replace the power switch in case of failure.

The circuit board is composed of an AC circuit board and a DC circuit board, and the circuit board mounting portion of the mounting case is mounted on the AC circuit board mounting portion and the DC circuit board mounting DC circuit board mounting portion. In the case where the AC circuit board mounting portion is connected to a cover that covers the AC circuit board, the high voltage AC circuit board portion can be shielded by the cover, which is safe.

Further, in the case where the mounting case has the AC circuit board mounting portion and the power switch mounting portion separated from each other at both ends, and the bottom portions thereof are formed at approximately the same depth position, It is possible to dispose a certain AC electronic component and the power switch at both ends of the mounting case, and based on that, the depth positions of the bottoms of both ends of the mounting case can be made to be almost the same, so the outside of both bottoms Due to the projections formed on the lower surface slightly or both outer lower surfaces themselves, the mounting case can be stably placed on an appropriate mounting surface before mounting.

Then, the AC circuit board mounting portion and the DC circuit board mounting portion of the mounting case are separated from each other by providing a step, and a reinforcing wall is provided on both the front side and the back side of the step portion. The case is "he" from the step
It can be effectively prevented from being deformed into a letter shape. On the other hand, if the lead wire connected to the power switch is fixed at a position lower than the connection terminal in front of the connection terminal of the power switch, it is possible to prevent water from entering the power switch through the lead wire.

Further, in the case where the lead wire connected to the power switch is passed through the inside of the mounting case, it is possible to prevent the user's contact with the lead wire after the mounting without using a separate tube or tape. Further, in the case where the power switch mounting portion of the washing machine body has a flame-retardant sheet, and the flame-retardant sheet is fixed by sandwiching the power switch mounting portion of the mounting case or the power switch and the washing machine body, The flame-retardant sheet can be fixed without the need for additional dedicated parts.

In addition, in the case where the washing machine body is provided with a protrusion for abutting against the power switch mounting portion of the mounting case or the base portion of the power switch, the mounting case includes the circuit board mounting portion and the power switch. Due to the fact that the mounting part is integrally formed and has a long length, the position of the power switch tends to shift due to contraction, sinking, and distortion after molding, but it can be accurately regulated and the power supply can be controlled. Good operability of the switch can be ensured.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. First, FIG. 2 shows the configuration of the entire washing machine, in which an outer tub 1 is provided with a water tank 2.
A dewatering tub 3 also serving as a washing tub is arranged inside the water tub 2, and a stirring body 4 for washing is arranged below and inside the dewatering tub 3. Further, on the outer lower part of the water tank 2, a drive mechanism 6 mainly including a motor 5 for selectively rotating the agitator 4 and the dehydration tank 3 during washing and dehydration is disposed. A drain valve 7, a drain hose 8 and the like for draining from the water tank 2 are also arranged.

On the other hand, a top cover 9 is mounted on the outer box 1. For example, a half-folded lid 10 is pivotally mounted on the top cover 9 as shown in FIG. A panel 11 is provided. This operation panel 11
There is a power switch 12 in addition to various operation keys 13 and the like.

On the other hand, FIG. 4 shows a mounting case 14, which has a circuit board mounting portion 15 and a power switch mounting portion 16 integrally formed of plastic. The circuit board mounting portion 15 further includes an AC circuit board mounting portion 17 and a DC circuit board mounting portion 18,
Each of them is formed into a flat rectangular container shape, and both have bank portions 19 and 20 in the peripheral portion.

Further, the AC circuit board mounting portion 17 and the DC circuit board mounting portion 18 are such that the AC circuit board mounting portion 17 is in a lower stage, and one side portion of the bank portion 19 on the DC circuit board mounting portion 18 side is a bank. The side of the portion 20 on the side of the AC circuit board mounting portion 17 is separated by providing a step that is flush with the lower side, and the front (upper) side of the step extends from the bank 19 upward in a trapezoidal shape. Reinforcing walls 21 are formed on both front and rear sides, and on the back (lower) side, triangular reinforcing walls 22 connecting the bank portion 19 to the outer bottom of the DC circuit board mounting portion 18 are formed near both front and rear sides. .

Further, the AC circuit board mounting portion 17 is provided with a plurality of board receiving projections 23, a plurality of fixing claws 24 and one flexible claw 25 on the periphery of the bottom portion thereof. The mounting portion 18 includes a plurality of substrate receiving protrusions 26, a plurality of fixing claws 27, and a plurality of screw bosses 28 around the bottom.
Is formed. In addition, a plurality of flexible claws 29 and a plurality of screw insertion holes 30 are provided around the entire mounting case 14.
And form.

The power switch mounting portion 16 is mainly composed of a hollow switch receiving portion 31 erected from the bottom portion, and fixed claws 32 are formed at two positions on one (front) side thereof.
Flexible claws 33 are formed at two positions on the other (rear) side.
Further, a lead wire hook 34 having an inverted "S" shape is provided between the power switch mounting portion 16 and the DC circuit board mounting portion 18.
(See FIGS. 5 and 6).

Further, the AC circuit board mounting portion 17 and the power switch mounting portion 16 are separated from each other at both ends of the mounting case 14, and the respective bottom portions thereof are formed at substantially the same depth position. In addition, from the outer bottom of the power switch mounting portion 16 to the outer bottom of the DC circuit board mounting portion 18, triangular reinforcing walls 35 are formed near both front and rear sides, and the reinforcing wall 35 is partially connected to the power source. Formed on the outer bottom portion of the switch mounting portion 16 are ridges 36 (see FIGS. 5 and 6) as legs,
On the other hand, on the outer bottom portion of the AC circuit board mounting portion 17, a ridge 37 as a leg portion is formed so as to be continuous with the reinforcing wall 22.

On the other hand, the circuit board 38 includes various tactile switches 39 corresponding to the various operation keys 13 of the operation panel 11 and various electronic components (40, 40) for operation control.
42), specifically, an AC circuit board 41 on which an electronic component 40 for AC specifications is mounted, and a DC circuit board 43 on which an electronic component 42 for DC specifications is mounted. 44 to connect the AC circuit board 41 and the connector 45 with a lead wire 46.
The connector 45 and the power switch 12 are connected to a lead wire 47.
Further, the AC circuit board 41 and the power switch 12 are connected by the lead wire 48.

A cover 49 made of, for example, a flame-retardant material is provided for the AC circuit board mounting portion 17, and the cover 49 has a hole corresponding to the flexible claw 29 around the mounting case 14. 50 is formed and the screw insertion hole 3 is formed.
Holes 51 corresponding to some 0 are formed.

Now, in the case of the above-mentioned configuration,
In mounting the circuit board 38 and the power switch 12, first, the AC circuit board 41 is mounted on the board receiving projection 23 and the fixing claw 2 in the AC circuit board mounting portion 17 of the mounting case 14.
4 and is elastically engaged with the flexible claw 25 so as to be attached to the AC circuit board mounting portion 17 and the DC circuit board 43 in the DC circuit board mounting portion 18 and the board receiving projection 26 and the fixing claw 27. It is mounted on the DC circuit board mounting portion 18 by inserting it into the screw boss 28 and fixing the screw 52. Then, the moisture-proof filling material 53 (see FIG. 1) is attached to the AC circuit board mounting portion 17 and the DC circuit board mounting portion 18.
Is injected to fill and solidify.

On the other hand, the power switch 12 is shown in FIGS.
As shown in, while inserting the power switch mounting portion 16 into the switch receiving portion 31, the front side of the brim-shaped base portion 12a is inserted below the fixing claw 32, and the rear side is elastically engaged with the flexible claw 33. Thus, the power switch mounting portion 16 is mounted.

Then, the hole 50 of the cover 49 is elastically engaged with the flexible claw 29 of the mounting case 14, the hole 51 is aligned with the corresponding screw insertion hole 30, and the AC circuit board 41 is covered with the cover 49. Above, all the screw insertion holes 30 of the mounting case 14 are applied to the screw boss 54 shown in FIG. 6 of the top cover 9 to fix the screws 55, and thus the circuit board 9
The power switch 10 and the power switch 10 are attached to the main body of the washing machine by one attachment case 14 (see FIG. 1). At the same time, the cover 49 is attached to the AC circuit board mounting portion 17 of the mounting case 14.
It is also fixedly attached to. Further, the flat cable 44 and the lead wires 46 to 48 are passed inside the mounting case 14, and the power switch 12 projects upward from the hole of the operation panel 11.

As described above, in this structure, the necessary circuit board 38 and the power switch 12 are provided in one mounting case 14.
Can be attached to the main body of the washing machine at the same time without the need for dedicated mounting parts like the conventional ones, the number of parts can be reduced, and no separate mounting work is required. A simplification can be achieved. Also, the connection between the circuit board 38 and the power switch 12 and the connection between the connector 45 and the power switch 12 can be easily performed by the short lead wires 48 and 47, respectively, without the need to crawl to the main body of the washing machine. The cost can be reduced.

Further, particularly in the case of the above structure, the mounting case 14 is connected to the circuit board mounting portion 15 (AC circuit board mounting portion 1
7, ridges 19, 2 around the DC circuit board mounting portion 18)
By having 0, the outflow of the moistureproof filler 53 filling the AC circuit board mounting portion 17 and the DC circuit board mounting portion 18 can be prevented by the bank portions 19 and 20, so that the circuit board 38 ( The moisture-proof treatment of the AC circuit board 41, the DC circuit board 43) can be performed without wasting the filling material 53.

Furthermore, regarding the power switch mounting portion 16, the power switch 12 can be detached by removing the base portion 12a of the power switch 12 from the flexible claw 33 and pulling out from below the fixed claw 32. As a result, it is possible to easily replace the power switch 12 in the event of a failure.

On the other hand, the circuit board mounting portion 1 of the mounting case 14
5, the AC circuit board mounting portion 17 and the DC circuit board mounting portion 1
8 is provided separately, and a cover 49 is coupled to the AC circuit board mounting portion 17 so that the AC circuit board 41 is covered by the cover 49, thereby shielding the high voltage AC circuit board 41 portion. You can, you can be safe.

Further, the mounting case 14 has an AC circuit board mounting portion 17 and a power switch mounting portion 16 which are separated from each other at both ends, and the respective bottom portions are formed at substantially the same depth position. , The AC electronic component 40 having a high height and the power switch 12 can be arranged separately on both ends of the mounting case 14, and the mounting case 1
Since the depth positions of the bottoms of both ends of 4 can be made almost the same, the projections (the ridges 3
7, 36), or both outer lower surfaces themselves,
Before mounting, the mounting case 14 can be placed on an appropriate mounting surface with good stability without fear of falling.

Then, the AC circuit board mounting portion 17 and the DC circuit board mounting portion 18 of the mounting case 14 are separated by providing a step, and reinforcing walls 21 and 22 are formed on both the front side and the back side of the step portion. As a result, it is possible to effectively prevent the mounting case 14 from being deformed in a "V" shape from the stepped portion.

Further, in particular, the lead wires 47, 48 connected to the power switch 12 are passed through the inside of the mounting case 14, so that the user can contact the lead wires 47, 48 after mounting (for example, by opening the lid 10). It is possible to prevent the user from forcibly inserting his / her hand through the opening for loading / unloading the laundry and making contact therewith without using a separate tube or tape.

In contrast to the above, FIGS. 7 to 14 show a second embodiment of the present invention, in which FIG. 7 shows that the lead wire hook 56 is formed lower than the above-mentioned lead wire hook 34. Lead wire 4 connected to the power switch 12 described above
7 and 48 are shown to be fixed at a position lower than the connection terminal 12b in front of the connection terminal 12b of the power switch 12, and by doing so, the lead wires 4
It is possible to prevent water from entering the power switch 12 through the wires 7, 48.

8 to 10 show the mounting case 14
With the pin boss 57 protruding from the DC circuit board mounting portion 18 of
The lead wires 47 and 48 are prevented from contacting the tact switch 39 portion of the DC circuit board 43, and a plurality of protrusions 5 are provided on the LED (electronic component 42) support 58 in a staggered arrangement.
In FIG. 9, the lead wires 47 and 48 are fixed.

11 and 12 show the top cover 9
The power switch 12 mounting portion of the (washing machine main body) has a flame-retardant sheet 60 made of, for example, a 0.3 [mm] thick galvanized steel plate. The flame-retardant sheet 60 is attached to the power switch mounting portion of the mounting case 14. 16 (specifically, the rib 61 of the power switch mounting portion 16) and the top cover 9 are sandwiched and fixed. By doing so, a dedicated component for fixing the flame-retardant sheet 60 is separately provided. You can do it without needing to. In this case, the flame-retardant sheet 60 has an L-shaped slit 63 through which the waterproof rib 62 protruding from the top cover 9 passes.

FIG. 13 shows that the top cover 9 is provided with projections 64 that abut on the power switch mounting portion 16 of the mounting case 14 from both left and right sides to regulate the position thereof. Since the mounting case 14 has the circuit board mounting portion 15 and the power switch mounting portion 16 integrally formed, it is long and the power switch 12 is displaced due to contraction, sinking, or distortion after molding. Although it is easy, it can be regulated accurately, the power switch 12 can be prevented from hitting the top cover 9, and the power switch 1
The operability of No. 2 can be well ensured.

In this case, the protrusion 64 is replaced with the protrusion 65 as shown in FIG.
The position may be regulated by contacting a (specifically, the rib 66 of the base portion 12a). In addition, the present invention is not limited to the embodiments described above and shown in the drawings, and may be appropriately modified and implemented without departing from the scope of the invention.

[0039]

The washing machine of the present invention is as described above, and has the following effects. First, in a device including a circuit board on which various electronic components for operation control are mounted and a power switch, a circuit board mounting portion for mounting the circuit board and a power switch mounting portion for mounting the power switch are integrally formed. Since it has a mounting case that can be attached to the washing machine body with both the circuit board and the power switch mounted on both mounting parts, the number of parts required for mounting the circuit board and the power switch can be reduced. In addition, the work can be simplified, and the wiring work can also be simplified.

Secondly, the mounting case has a bank portion around the circuit board mounting portion for preventing outflow of the moisture-proof filling material, and the power switch is detachably mounted to the power switch mounting portion. By doing so, the moisture-proof treatment of the circuit board can be performed without wasting the filler, and the power switch can be easily replaced in the event of a failure.

Thirdly, the circuit board is composed of an AC circuit board and a DC circuit board, and the mounting case is mounted with the AC circuit board mounting section and the DC circuit board where the circuit board mounting section mounts the AC circuit board. The DC circuit board mounting part is separated from the AC circuit board mounting part, and the cover for covering the AC circuit board is connected to the AC circuit board mounting part, so that the high voltage AC circuit board part can be shielded by the cover for safety. be able to.

Fourth, the mounting case has an AC circuit board mounting portion and a power switch mounting portion which are separated from each other at both ends, and the bottom portions of the mounting portions are formed at substantially the same depth position. Since the high-power AC electronic components and the power switch can be placed separately at both ends of the mounting case, and based on that, the depth positions of the bottoms of both ends of the mounting case can be made almost the same, The protrusions formed on the outer and lower surfaces of both bottom portions or both outer and lower surfaces themselves allow the mounting case to be stably placed on an appropriate mounting surface before mounting.

Fifth, the above-mentioned mounting case is configured such that the AC circuit board mounting portion and the DC circuit board mounting portion are separated from each other with a step, and reinforcing walls are provided on both the front side and the back side of the step portion. As a result, it is possible to effectively prevent the mounting case from being deformed in a "V" shape from the stepped portion. Sixth, by fixing the lead wire connected to the power switch at a position lower than the connection terminal in front of the connection terminal of the power switch, it is possible to prevent water from entering the power switch through the lead wire.

Seventh, by passing the lead wire connected to the power switch through the inside of the mounting case, it is possible to prevent the user's contact with the lead wire after mounting without using a separate tube or tape. . Eighth, the washing machine body has a flame-retardant sheet on the power switch mounting portion. This flame-retardant sheet is difficult to fix by sandwiching the power switch mounting portion of the mounting case or the power switch and the washing machine body. The fuel sheet can be fixed without the need for separate dedicated parts.

Ninth, since the washing machine main body is provided with a protrusion for abutting against the power switch mounting portion of the mounting case or the base portion of the power switch to regulate the position thereof, the mounting case serves as the circuit board mounting portion and the power switch. Due to the fact that the mounting part is integrally formed and has a long length, the position of the power switch tends to shift due to contraction, sinking, and distortion after molding, but it can be accurately regulated and the power supply can be controlled. Good operability of the switch can be ensured.

[Brief description of drawings]

FIG. 1 is a perspective view of a main portion showing a first embodiment of the present invention.

[Fig. 2] Side view of the washing machine as a whole

FIG. 3 is a perspective view of a front upper portion of the washing machine.

FIG. 4 is an exploded perspective view of main parts

FIG. 5 is a partial perspective view from the DC circuit board mounting portion to the power switch mounting portion.

FIG. 6 is a rear view of the same portion.

FIG. 7 is a cross-sectional view corresponding to FIG. 6 showing a second embodiment of the present invention.

FIG. 8 is a plan view of a portion corresponding to FIG.

9 is a sectional view taken along the line AA of FIG.

10 is a sectional view taken along the line BB of FIG.

FIG. 11 is a bottom view of the power switch mounting portion of the washing machine.

FIG. 12 is a vertical sectional side view of the same portion.

FIG. 13 is a vertical sectional front view of a part of the same portion.

FIG. 14 is a vertical sectional front view showing a different configuration example of the same portion.

[Explanation of symbols]

9 is a top cover, 12 is a power switch, 12a is a base part, 12b is a connection terminal, 14 is a mounting case, 15 is a circuit board mounting part, 16 is a power switch mounting part, 17 is an AC circuit board mounting part, and 18 is a direct current. Circuit board mounting part, 19, 20
Is a bank portion, 21, 22 is a reinforcing wall, 38 is a circuit board, 40 is an electronic component, 41 is an AC circuit board, 42 is an electronic component, 43
Is a DC circuit board, 49 is a cover, 53 is a moistureproof filler,
56 is a lead wire hook, 60 is a flame retardant sheet, 61 is a rib, 64 and 65 are protrusions, and 66 is a rib.

Front page continuation (72) Inventor Takashi Nonogaki 991, Anada-cho, Seto-shi, Aichi Prefecture Toshiba Aichi factory

Claims (9)

[Claims] 1. A device comprising a circuit board on which various electronic components for operation control are mounted and a power switch, wherein a circuit board mounting part for mounting the circuit board and a power switch mounting part for mounting the power switch are integrally formed. And a mounting case that is mounted on the main body of the washing machine in a state in which the circuit board and the power switch are mounted on both mounting portions. 2. The mounting case has a bank portion around the circuit board mounting portion for preventing the moistureproof filler from flowing out, and the power switch is detachably mounted to the power switch mounting portion. The washing machine according to claim 1, wherein: 3. The circuit board comprises an AC circuit board and a DC circuit board, and the mounting case has an AC circuit board mounting section for mounting the AC circuit board and a DC circuit board mounting section for mounting the DC circuit board. 2. The washing machine according to claim 1, wherein the washing machine is isolated, and a cover for covering the AC circuit board is coupled to the AC circuit board mounting portion. 4. The mounting case has an AC circuit board mounting portion and a power switch mounting portion which are separated from each other at both ends, and the respective bottom portions thereof are formed at substantially the same depth position. The washing machine described in 3. 5. The mounting case separates the AC circuit board mounting portion and the DC circuit board mounting portion with a step, and has reinforcing walls on both the front side and the back side of the step portion. The washing machine described in 3. 6. The washing machine according to claim 1, wherein the lead wire connected to the power switch is fixed at a position lower than the connection terminal in front of the connection terminal of the power switch. 7. The washing machine according to claim 1, wherein a lead wire connected to the power switch is passed through the inside of the mounting case. 8. A washing machine main body having a flame-retardant sheet at a power switch mounting portion, and the flame-retardant sheet is fixed by being sandwiched between the power switch mounting portion of the mounting case or the power switch and the washing machine body. The washing machine according to claim 1, wherein: 9. The washing machine according to claim 1, wherein the washing machine body is provided with a protrusion that abuts against the power switch mounting portion of the mounting case or the base portion of the power switch to regulate the position thereof.