JP3022478B2 - Washing machine - Google Patents

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 a control board for sequentially controlling a series of steps such as washing, rinsing and dehydration.

[0002]

2. Description of the Related Art Conventionally, this type of washing machine generally has a configuration as shown in FIG. Hereinafter, the configuration will be described.

As shown in FIG. 5, a water receiving tub 1 includes a washing and dewatering tub (washing tub) 3 in which a pulsator 2 is rotatably arranged at the bottom, and is suspended from an outer frame 5 by a hanging rod 4. Have been. The upper exterior body 6 is mounted on the upper part of the outer frame 5, and a cloth inlet 7 is formed substantially at the center of the upper exterior body 6, and the upper side is covered with the lid 8. Also, an electromagnetic water supply valve 9 is provided at the rear of the upper exterior body 6,
A water supply device 10 is built in and covered with a panel 11.

A control board storage section 12 is formed at the front of the upper exterior body 6, and an operation plate 14 having a button 13 is provided so as to cover the control board storage section 12 from above.
A control board 15 having switches and the like is mounted on the back surface of the operation plate 14. Further, a reinforcing plate 16 is attached to the bottom of the water receiving tank 1, and a bearing box 17, a motor 18, and the like are disposed on the reinforcing plate 16, and the bearing box 17 and the motor 18 are connected by a belt 19. The bearing box 17 has a mechanism for transmitting the driving force of the motor 18 so as to rotate the pulsator 2 during washing and to rotate the washing and dewatering tub 3 during spin-drying.

The lead wires 20a to 20d are connected to the control board 15
Is transmitted to the inside of the washing machine so as to be transmitted to electrical components such as the electromagnetic water supply valve 9, the motor 18 and the drain valve 21.

[0006]

In the recent performance improvement of a washing machine, for example, when an inverter circuit or the like is mounted on the washing machine, a control board larger than the conventional one is required. Disappears.

In addition, the control board is divided into a signal control board having a switch and a power supply control board having an inverter circuit in accordance with the noise generated from the inverter circuit. It has become necessary to install it in a washing machine.

Due to such restrictions, the control board storage unit 1
If the width 2 is widened, the entire width of the washing machine becomes wide, and the washing machine cannot fit in a waterproof pan installed in a general home. Further, when the height of the washing machine is increased, the convenience of use as a general household washing machine mainly used by women is reduced, and the value of the washing machine is extremely reduced.

Further, it is conceivable to dispose the power supply control board in a space where the internal components do not come into contact with the swirling of the water receiving tank at the time of dehydration, for example, at the rear corner of the washing machine. On the other hand, maintenance for a failure of the control board is predicted. For example, it is conceivable that the dryer is installed on a directly attached unit base, so that the control board must be arranged at a position where the washing machine can be easily replaced without moving the washing machine. Therefore, the rear corner of the washing machine was not a good place to install the control board.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and enables a large-sized power supply control board such as an inverter circuit to be installed at a position separated from a signal control board having a switch and the like, thereby improving noise immunity and the like. This is the first object.

Another object of the present invention is to make it possible to install a large-sized power supply control board such as an inverter circuit at a position separated from a signal control board having a switch or the like, and to easily replace the control board at the time of service. It has two purposes.

[0012]

SUMMARY OF THE INVENTION In order to achieve the first object, the present invention provides a base member for supporting an outer frame containing a washing tub, and mounts a case containing a control board on the base member. It was established.

This makes it possible to install a large-sized power supply control board such as an inverter circuit at a position separated from a signal control board having a switch and the like, and to improve noise immunity and the like.

Further, in order to achieve the second object, a base member for supporting an outer frame in which a washing tub is provided is provided, and a case accommodating a control board from the front opening of the base member is provided inside the base member. It is one that can be inserted and removed.

This makes it possible to dispose the large-sized power supply control board such as an inverter circuit at a position separated from the signal control board having switches and the like, and to easily replace the control board at the time of service.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the first aspect of the present invention, a base member for supporting an outer frame in which a washing tub is provided is provided.
And a signal control board is provided above the outer frame,
A power supply control is provided inside the base member through the front opening.
Attach the case containing the control board so that it can be
The front opening of the base member is opened and closed
It has a cover that covers it. This configuration
With the high performance of the washing machine, a large-sized control board can be stored in the washing machine, and the control board is divided into a signal control board having a switch and a power control board having an inverter circuit and the like. Can be installed at a distance from each other, and the noise immunity and the like can be improved.

Further, a base member for supporting an outer frame in which a washing tub is provided is provided, and a case accommodating a control board is detachably mounted inside the base member from an opening on the front surface thereof. As the performance of the washing machine becomes higher, a control board that is enlarged can be stored, and the control board can be easily replaced at the time of service.

Further, a cover body which covers the front opening of the base member so as to be openable and closable is attached in a state where the case is housed, and the case housing the control board can be protected by the cover body. The design of the member can be improved.

The second aspect of the present invention is the first aspect.
In addition to the described invention, the case and cover
Since the base member is fixed to the base member by tightening, the base member, the case accommodating the control substrate and the cover body can be securely fixed, and the control substrate can be easily replaced from the front of the washing machine. Further, the case and the cover body are fixed to the base member by jointly tightening the screws, so that the case and the cover body containing the base member and the control board are securely fixed. Work can be simplified.

The third aspect of the present invention is the second aspect of the present invention.
In addition to the described invention, the upper part of the cover
The engaging part is provided with a locking part that can be engaged from the front.
In addition, since the cover body and the base member can be locked together with the outer frame , the cover body can be more securely fixed, and further, there is no gap with the upper outer frame, so that the design can be further improved.

[0021] The invention described in claim 4 of the present invention is claim 1.
In addition to the invention of any one of the above items, the case
A wire lead-out section is provided at one end in the left-right direction.
The other end turn the lead portion near the lead wire as the center of rotation axis
When the case is pulled out at the time of service, the lead wire connected to the control board can be easily pulled out without forcibly applying stress.

The fifth aspect of the present invention is the first aspect of the present invention.
In addition to the invention described in any one of the above items 4 to 4, the base member
Near the lead wire lead-out part of the case.
The groove for slack is formed, the slack of the lead wire can be increased, and the stress on the lead wire generated when the case is pulled out during service can be further reduced.
The withdrawal distance can be increased to further improve the service.

The invention according to claim 6 of the present invention is the invention according to claim 2.
Or, in addition to the invention described in 3, the outer frame in which the washing tub is provided is supported.
Can be installed on the waterproof pan,
Position of the screw on the cover and the side wall of the waterproof pan.
The screw that attaches the cover body can be removed while being installed on the waterproof pan, and the serviceability can be improved.

According to the seventh aspect of the present invention, the second aspect is provided.
Or, in addition to the invention described in 3, the outer frame in which the washing tub is provided is supported.
The base member to be held can be installed on the waterproof pan, and the cover
The mounting position of the waterproof pan is higher than the side wall of the waterproof pan, and the cover body can be removed while being installed on the waterproof pan, so that the serviceability can be further improved.

The invention according to claim 8 of the present invention is the invention according to claim 2
In addition to the invention described in any one of the above items 4, a washing tub is provided
The base member supporting the outer frame can be installed on the waterproof pan
Then, the front opening of the base member is set to be closer to the side wall of the waterproof pan.
The case is located at a high position, and the case can be pulled out while being installed in the waterproof pan, so that the serviceability can be further improved.

The ninth aspect of the present invention is the second aspect of the present invention.
In addition to the invention described in any one of Items 1 to 8, the washing tub is
The base member supporting the outer frame can be installed on the waterproof pan
And the storage position of the case is higher than the side wall of the waterproof pan.
Even when water accumulates on the waterproof pan due to clogging of the drainage of the waterproof pan, the internal control board does not get wet, and accidents such as failure and electric shock can be prevented.

According to a tenth aspect of the present invention, there is provided a washing tub.
A base member for supporting the outer frame with the
Place the case containing the control board on the
The control board, which is housed inside the
The connector to be connected to this control board
From the top of the case, and
A drain hole is provided to prevent water that has entered the case from passing through the lead wire connected to the connector from reaching the live part of the connector. It can be discharged and safety can be ensured.

[0028]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) As shown in FIG. 1, a base member 22 is provided with a washing and dewatering tub (washing tub) in which a pulsator is rotatably disposed at a bottom portion. ) Is supported to support an outer frame 23 in which a control board (not shown) is detachably inserted from the front opening 24 inside the base member 22. Case 25 stored
Is provided.

The cover 26 is attached so as to open and close the front opening 24 of the base member 22 in a state where the case 25 is housed. A flange portion of the outer frame 23 is provided on the upper portion of the cover 26. 27 (see FIG. 3) are provided with locking portions 28a to 28c which can be engaged from the front. Then, the case 25 is fastened to the base member 22 from the front with the screw 29a, and the case 25 and the cover body 26 are screwed together.
The base member 22 is fastened to the base member 22 from the front by 9b and 29c. Other configurations are the same as the conventional example.

The operation of the above construction will be described. By providing the base member 22 with the case 25 accommodating the control board, it is possible to accommodate the control board which has become large with the performance of the washing machine. The signal control board of the switch is divided into a power control board on which an inverter circuit and the like are mounted, and the signal control board is provided on the upper portion of the front surface of the outer frame 23. By providing the control board 22, it is possible to install each control board at a distance, and it is possible to improve noise immunity and the like.

Further, since the case 25 accommodating the control board is mounted inside the base member 22 so as to be able to be inserted and removed from the front opening 24, the control board can be easily replaced during service.

Further, by attaching a cover body 26 which covers the front opening 24 of the base member 22 so as to be openable and closable in a state where the case 25 is housed, the case body 25 housing the control board can be protected by the cover body 26. The design can be improved by changing the shapes of the base member 22 and the cover body 26.

The case 25 and the cover 22 are
By fixing to the base member 22 by screwing from the front, the base member 22, the case 25 containing the control board, and the cover body 26 can be securely fixed, and the control board can be easily replaced from the front of the washing machine. Therefore, even in a home where there is no space on both sides of the washing machine, the control board can be easily replaced from the front.

The case 25 and the cover 26 are
The base member 22 is tightened with the screws 29b and 29c.
, The base member 22, the case 25, and the cover 26 can be economically fixed, and the control board replacement operation can be simplified.

Further, the outer frame 2
Locking portion 28a engageable with the third flange portion 27 from the front
Since the cover member 26 is provided with the base material 2
2 and can be locked to the outer frame 23, so that it can be fixed more reliably, and furthermore, the gap with the upper outer frame 23 can be eliminated, and the design can be further improved.

In this embodiment, a hole is formed on the outer frame 23 side, and a locking portion 28 which forms a locking rib on the cover body 26 is formed.
Although a to 28c are provided, conversely, a claw may be provided on the outer frame 23 side, and a hole or the like may be provided in the cover body 26.

(Embodiment 2) As shown in FIG. 2, a case 30 houses a control board,
Leader 32 of lead 31 connected to this control board
Is provided at one end side in the left-right direction, and the other end 33 is turned in the direction of the arrow with the vicinity of the lead-out portion 32 of the lead wire 31 as the rotation center axis so that the lead wire 31 can be pulled out. Also,
A groove 35 for slackening the lead wire 31 is provided in the base member 34 in the vicinity of the lead-out portion 32 of the lead wire 31 so that the lead wire 31 easily sags downward. Other configurations are the same as those in the first embodiment.

The operation of the above configuration will be described. When the case 30 is pulled out during service or the like, an excessive stress is not applied to the lead wire 31 drawn out of the case 30.
The case 30 can be pulled out with a minimum slack of the lead wire 31.

The base member 34 has a lead wire 31
The groove 35 is provided in the vicinity of the lead-out portion 32 so that the lead wire 31 easily slacks downward. Therefore, the slack of the lead wire 31 can be increased, and the lead wire 31 generated when the case 30 is pulled out during service can be provided. The stress can be reduced, the drawing distance can be increased, and the service can be further improved.

(Embodiment 3) As shown in FIG. 3, the waterproof pan 36 can be provided with a base member 37 for supporting the outer frame 23. The front opening 38 of the base member 37 is provided at a position higher than the side wall 39 of the waterproof pan 36, and the mounting position of the cover body 26 is
Of the waterproof pan 36 is positioned higher than the side wall 39 of the waterproof pan 36. The storage position of the case 40 is provided at a position higher than the side wall 39 of the waterproof pan 36. Other configurations are the same as those in the first or second embodiment.

The base member 37 may be either the base member 22 of the first embodiment or the base member 34 of the second embodiment, and the case 40 is the case 2 of the first embodiment.
5. Any of the cases 30 of the second embodiment may be used. Reference numeral 41 denotes a height-adjustable leg attached to the base member 37.

The operation of the above construction will be described. The front opening 38 of the base member 37 is connected to the side wall 39 of the waterproof pan 36.
By setting it at a higher position, the case 40 can be pulled out while being installed on the waterproof pan 36, and serviceability can be improved.

The mounting position of the cover 26 is higher than the side wall 39 of the waterproof pan 36, and the screw tightening position of the case 40 and the cover 26 is set to the side wall 39 of the waterproof pan 36.
The screw 2 for attaching the cover body 26 while being installed on the waterproof pan 36 by setting it to a higher position.
9 can be removed, and the serviceability can be improved.

Further, the storage position of the case 40 is
6, the control board 42 inside the case 40 is not wet even if water is accumulated on the waterproof pan 39 due to clogging of the drainage of the waterproof pan 36 due to clogging of the drainage of the waterproof pan 36. Such accidents can be prevented.

(Embodiment 4) As shown in FIG. 4, the control board 42 is housed in a case 44 such that the mounting surface of the component 43 faces downward, and the connector 45 connected to the control board 42 is From above. A drain hole 46 is provided on the lower surface of the case 44. Other configurations are the same as those of the above-described first to third embodiments.
Same as 3.

The operation of the above structure will be described. The case 44 is transmitted through the lead wire 47 connected to the connector 45.
When water invades the inside, the connector 45 is inserted upward from below, so that the invading water can be prevented from hitting the charged portion of the connector 45, and the water invading the case 44 is The water can be discharged quickly from the drain hole 46, and safety can be ensured.

[0048]

As described above, according to the present invention, the washing tub
A base member for supporting the outer frame inside is provided.
The control board is housed inside the member from the front opening
Attaching the case so that it can be inserted and removed, to improve the performance of the washing machine
As a result, large control boards can be stored, and
The control board can be easily exchanged during operation.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a main part of a washing machine according to a first embodiment of the present invention, which is partially cut away.

FIG. 2 is an exploded perspective view of a main part of a washing machine according to a second embodiment of the present invention.

FIG. 3 is a sectional view of a main part of a washing machine according to a third embodiment of the present invention.

FIG. 4 is a sectional view of a main part of a washing machine according to a fourth embodiment of the present invention.

FIG. 5 is a longitudinal sectional view of a conventional washing machine.

[Explanation of symbols]

 22 Base member 23 Outer frame 25 Case

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) D06F 39/00 D06F 39/12

Claims (10)

(57) [Claims] 1. A base member for supporting the outer frame that decorated the washing tub provided Rutotomoni, a signal for the control board on the outer frame
In the base member, the inside of the base member, the front opening
The case containing the power supply control board is detachably attached
Then, with the case stored, open the front of the base member.
A washing machine with a cover that covers the mouth so that it can be opened and closed . 2. The case and the cover body are screwed together.
The washing machine according to claim 1, wherein the washing machine is fixed to the base member. 3. A flange portion of an outer frame is provided on an upper portion of the cover body.
3. The washing machine according to claim 2, further comprising a locking portion engageable from a front side . 4. The case may be configured such that a lead wire lead-out portion is left and right.
On one end side in the direction, near the lead wire lead-out part
Can be pulled out by rotating the other end side with
The washing machine according to any one of claims 1 to 3 . 5. A lead wire for a case is connected to the base member.
A groove with a slack for the lead wire formed near the
The washing machine according to any one of claims 1 to 4 . 6. A base for supporting an outer frame containing a washing tub.
Parts can be installed on the waterproof pan, case and cover body
The screw tightening position is higher than the side wall of the waterproof pan.
The washing machine according to claim 2 or 3, wherein 7. A base for supporting an outer frame containing a washing tub.
Parts can be installed on the waterproof pan, and the mounting position of the cover
4. The water-proof pan according to claim 2, wherein the water-proof pan is positioned higher than a side wall.
The washing machine according to any one of the preceding claims. 8. A base for supporting an outer frame containing a washing tub.
The component can be installed on the waterproof pan and the front opening of the base member
The part is a position higher than the side wall of the waterproof pan.
5. The washing machine according to any one of the above items 4 . 9. A base for supporting an outer frame containing a washing tub.
The components can be installed on the waterproof pan, and the storage position of the case is
9. The method according to claim 2, wherein the position is higher than the side wall of the waterproof pan.
2. The washing machine according to claim 1 . 10. A base for supporting an outer frame containing a washing tub.
The base member is provided with a casing
With the control board housed inside the case.
Product so that the mounting surface is
Continued connectors are inserted from the bottom up,
A washing machine provided with a drain hole on a lower surface of the case .