JPH119889A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the easy assembly and arrangement of a control device, a reactor, and a noise filter and to enable the easy and inexpensive wiring between them. SOLUTION: A control device 4, a reactor 5, and a noise filter 12 are arranged on a top cover 2. By this, it is possible to assemble and to arrange the control device 4, the reactor 5, and the noise filter 12 to the single top cover 2, and in addition it is possible to wire the control device 4, the reactor 5, and the noise filter 12 for connection concentratedly at the part of the top cover 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a washing machine having a control device, a reactor and a noise filter.

[0002]

2. Description of the Related Art In recent years, a washing machine has been provided with an electronic control circuit as a control device for controlling the operation. Among them, a washing stirrer and a rotary tub for spinning are rotated. A motor using an inverter control circuit or the like is provided for driving control of a motor.

However, in such a device, harmonics and noise are generated from the control device, and the generated harmonics and noise may leak through the power supply line and enter other external devices to adversely affect them. is there. For this purpose, a reactor for blocking the harmonics and a noise filter for blocking the noise are further provided, which are generally arranged at a lower portion in the outer case. On the other hand, the control device itself is disposed at the front or side of the top cover mounted on the upper part of the outer box.

[0004]

However, in the above arrangement, the arrangement of the control device and the arrangement of the reactor and the noise filter must be performed separately.
The work was troublesome. In addition, the wiring from the control device to the reactor and the noise filter needs to be long, and the work is troublesome, and the cost of materials such as lead wires is high.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and accordingly, it is an object of the present invention to easily assemble and arrange a control device, a reactor, and a noise filter, and also to facilitate wiring between them. Another object of the present invention is to provide a washing machine that can be manufactured at a low cost.

[0006]

In order to achieve the above object, a washing machine according to the present invention comprises a control device for controlling operation, a reactor for cutting off harmonics emitted from the control device, and a noise reduction device. A control device, a reactor and a noise filter are provided on the top cover, wherein the control device, the reactor, and the noise filter are provided with a noise filter for blocking and a top cover mounted on the upper part of the outer box.

[0007] According to this, the mounting arrangement of the control device, the reactor and the noise filter can be performed for one top cover. In addition, wiring between the control device, the reactor, and the noise filter can be concentrated at the top cover.

[0008]

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 overall configuration of the washing machine, in which a top cover 2 is mounted on an upper part of an outer box 1. Of these, the outer box 1 is made of, for example, metal and has a rectangular cylindrical shape, and includes a rotating tank, a stirring body, and a driving mechanism mainly composed of a motor for rotating these (neither is shown). Is arranged.

On the other hand, the top cover 2 is made of plastic, for example, and has a rectangular frame shape as shown in FIG. 1, and has a laundry entrance 3 at the center. The front part 2a and the rear part 2b of the top cover 2
Both are formed in a concave shape that opens upward, and the side portions 2c,
2d, as shown in an inverted state in FIG.

A control device 4 is disposed at a front portion 2a of the top cover 2. The control device 4 is for controlling the operation of the washing machine, has an electronic control circuit such as a microcomputer, and further has an inverter control circuit and the like for controlling the drive of the motor of the drive mechanism. ing. More specifically, the control device 4 is connected to a control center 4a having the microcomputer and the inverter control circuit and the like by a lead wire 4b to receive and display an operation related to the operation of the washing machine. An operation / display section 4c is provided, which is incorporated in the front portion 2a of the top cover 2 from above and arranged, and is fixed by screws (not shown).

On the other hand, the left side of the top cover 2 in FIG.
The reactor 5 is disposed on the side 2c (middle right side). The reactor 5 blocks harmonics emitted from the control device 4. Specifically, as shown in FIG. 4 in an inverted state similar to FIG. 3, the reactor 5 is provided via a core 5 a and a bobbin 5 b. Mounting plate 5 mounted on coil 5c and core 5a
d. On the other hand, on the side portion 2c of the top cover 2, two right-angled triangular ribs 6 are formed side by side on the right and left sides from the concave deep portion to the front and rear both surface portions. Each forms a boss 7.

In this configuration, as shown in FIG. 5, the core 5a of the reactor 5 is inserted and positioned between the right and left sides of the rib 6, the mounting plate 5d is placed on the boss 7, and the lower portion is further placed thereon. The cover 8 is placed, and the reactor 5 and the lower cover 8 are fixed by screws 9 screwed into the boss 7 from the lower cover 8 through the mounting plate 5d. The lower cover 8 covers the lower part of the reactor 5 (the upper part in the inverted state shown in FIGS. 3 to 5) and is sufficiently larger than the reactor 5. It is fixed to a boss 10 formed on the lower surface of 2b by a screw 11.

Further, a noise filter 12 is disposed on a rear portion 2b of the top cover 2 from above. The noise filter 12 blocks noise emitted from the control device 4, and more specifically, as shown in FIG. 6, a coil 12b incorporated in a mounting plate 12a and a capacitor 12c.
These are mounted on the circuit board 15 together with the connectors 13 and 14 on one side 13a and 14a, respectively.

The circuit board 15 on which the noise filter 12 and the like are mounted is housed in a filter case 16.
The filter case 16 is made of a flame-retardant material, for example, a flame-retardant grade ABS resin, and has a rectangular box shape with one side open.
The circuit board 15 on which the second and the like are mounted is housed and fixed by the engagement claws 17 shown in FIG. Further, the circuit board 15
The potting 1 made of urethane resin or the like that covers the circuit board 15
8 is given.

Thereafter, as shown in FIG. 6, the other side 13a of the connector 13 connected to one end of the power cord 19, which is a conductive wire, is connected to one side 13a of the connector 13.
b is inserted and connected, and on one side 14a of the connector 14,
The other side 14b of the connector 14 connected to one end of the lead wire 20, which is also a conductive wire, is inserted and connected. Then, a filter cover 21 is fitted to the filter case 16.

The filter cover 21 is made of the same flame-retardant material as the filter case 16, and has a front wall 21a as a main body. 22, a rear wall 21b is provided so as to face the notch 22, and a side wall 21c and an upper wall 21d connecting the rear wall 21b and the front wall 21a are provided. Is formed. A projection 23 serving as an engagement portion is formed at the lower end of the rear surface of the rear wall 21b of the filter cover 21.
The front end of 1d protrudes from the front wall 21a to form a pressing portion 24 for the filter case 16.

In this configuration, the filter cover 21 is fitted to the filter case 16 with the front wall 21a facing the filter case 16 and the power cord 19 and the lead wire 20 being fitted into the cutouts 22. And in that state,
The open portion (filter cover 21) of the filter case 16 faces the rear side, which is one of the sides, and the filter case 16 and the filter cover 21 are arranged at the right end in FIG. ing. Here, the right end portion of the rear portion 2b of the top cover 2 in FIG.
In addition to the concave configuration that opens upward, a noise filter storage portion 26 is provided by providing a rising wall 25, and the above-described filter case 16 and filter cover 21 are provided.
Are stored in the noise filter storage section 26.

An engagement receiving portion 27 shown in FIG. 7 is formed on the inner surface of the rear wall of the noise filter housing portion 26. The projection 23 of the filter cover 21 is engaged with the engagement receiving portion 27, and at the same time, the pressing portion 24 is formed. The filter case 16 is pressed down. A rear panel 28 is attached to the rear portion 2b of the top cover 2 from above, and the rear panel 28 covers the entire rear portion 2b of the top cover 2 and also attaches the filter cover 21 and thus the noise filter 12 to the rear portion 2b of the top cover 2. And sandwiched between.

As shown in FIGS. 8 and 1, the power cord 19 has a plug 29 at the other end thereof which is inserted into a power outlet (not shown), and is led out of the top cover 2 to the outside. Let me. Also, lead wire 20
Is connected to the reactor 5 and the control device 4,
Further, the reactor 5 and the control device 4 are connected by a lead wire 30, and the top cover 2 has a hole 31 through which they are passed.
Is formed.

In addition, a water supply valve 3 is provided on the top cover 2.
2 and a drain cylinder 34 for receiving the drain of the clothes dryer installed above. A water supply valve 32 is provided in the rear panel 28 corresponding to these. A hole 35 for projecting the water port 32a;
4 is formed.

Further, as shown in FIG.
The front door 2a is provided with a front panel 38 having various operation keys and a display window to cover the control device 4 with a folding door 37 for opening and closing the laundry doorway 3. doing.

Now, in the case of the configuration as described above,
The mounting arrangement of the control device 4, the reactor 5, and the noise filter 12 can be performed with respect to one top cover 2, and it is necessary to separate the top cover 2 and the lower portion of the outer box 1 as in the conventional case. Work easily. In addition, wiring for connecting the control device 4 to the reactor 5 and the noise filter 12 can also be concentrated at the top cover 2 portion, and does not require any troublesome work between the top cover 2 and the lower portion of the outer box 1. Can work easily.
Moreover, in this case, the lead wires 20 and 3 for the connection are used.
The length of 0 can be shortened, and the cost can be reduced accordingly.

Further, due to the configuration of each component, the control device 4 and the noise filter 12 have a possibility of causing a failure, and it may be necessary to perform inspection and repair.
On the other hand, the control device 4 and the noise filter 12
The front part 2a and the rear part 2b of the top cover 2 in which are disposed are concave portions that open upward, and necessary inspection, repair, or removal for them can be easily performed from the upper opening portion. Thus, the so-called serviceability can be improved.

On the other hand, the reactor 5 has no possibility of failure, and does not require inspection and repair. On the other hand, the side portion 2c of the top cover 2 in which the reactor 5 is disposed has a concave shape that opens downward,
Although repair or removal for each of them is not easily possible from above, it is not problematic, but rather, the upper part is covered, so that the infiltration of water from above into the reactor 5 part is more secure. Can be prevented,
Water resistance can be improved.

A lower cover 8 is provided below the reactor 5 arranged as described above, so that the reactor 5 is covered from below. Water can be prevented from entering the reactor 5 due to water splashing from the inside), and the water resistance can be further improved. In addition, in this case, it is possible to prevent a hand from sneaking in from the laundry entrance 3 due to mischief or the like, and to prevent the hand from touching the reactor 5.

Further, since ribs 6 are provided on the side portions 2c of the top cover 2 to position the reactor 5 at the time of assembling, the assembling arrangement of the reactor 5 is more accurate and easier. Can be.

Then, regarding the noise filter 12,
This is sandwiched between the rear portion 2b of the top cover 2 and the rear panel 28 attached to the top cover 2, so that the noise filter 12 can be fixed by utilizing the attachment of the rear panel 28 to the rear portion 2b of the top cover 2. As a result, it is possible to achieve excellent assemblability without requiring a special fixing means. Further, in this case, if the rear panel 28 is removed from the rear portion 2b of the top cover 2, the fixing of the noise filter 12 can be released at the same time. Excellent decomposability can be obtained.

The noise filter 12 is accommodated and disposed in a filter case 16 made of a flame-retardant material, so that the effect of, for example, the spread of fire on the top cover 2 when the coil 12b generates abnormal heat can be prevented. In addition, the waterproofness of the noise filter 12 can be ensured well.

Further, in this case, the filter case 16 is open on one side, and the noise filter 1 mounted on the circuit board 15 is opened.
In a state where the second cover 2 is housed from the open portion, the filter 2 is disposed with the open portion sideways, and has a filter cover 21 that covers the open portion. The so-called vertical type can be arranged without requiring a large space, and the noise filter 12
Can be covered to improve its waterproofness.

In addition, the filter cover 21 has a slit-shaped notch 22 at a location corresponding to the power supply cord wire 19 and the lead wire 20 which are conductive wires connected to the circuit board 15, and passes therethrough. Thereby, the power supply cord wire 19 and the lead wire 20 are connected to the circuit board 15 in advance, and in this state, the filter cover 21 can be fitted to the filter case 16.
The assemblability can be improved.

Further, the filter cover 21 has an engaging portion 23 that engages with the top cover 2 and a pressing portion 24 that presses the filter case 16, so that the filter case 16 can be more securely held. For example, the filter case 16 can be held even when the rear panel 18 is removed. In this case, the filter cover 21 can be easily assembled.

FIG. 9 shows a second embodiment of the present invention. Only the differences from the first embodiment will be described below. In this case, regarding the assembly of the reactor 5,
Engagement claws 41 are respectively formed on the front edge and the rear edge of the back side concave portion of the side portion 2c of the top cover 2, and the mounting portions 42 at both front and rear ends of the mounting plate 5e of the reactor 5 are engaged with the engagement claws 41. Then, the mounting plate 5e is fixed to the boss 44 together with the mounting portion 43a of the lower cover 43 with the screw 9 thereon.

Also in this case, the arrangement of the reactor 5 can be easily and reliably performed. In this case, the mounting plate 5e of the reactor 5, the lower cover 43, and the boss 44
Are replacements for the mounting plate 5d, the lower cover 8 and the boss 7, respectively. The mounting plate 5e is for the mounting portion 42, the lower cover 43 is for the mounting portion 43a, and the boss 43 is for the tip portion. It is formed one step lower by the height of the dovetail 41.

FIG. 10 shows a third embodiment of the present invention. Only the differences from the first embodiment will be described below. In this case, one end of the power supply cord wire 19 and one end of the lead wire 20 are connected to the circuit board 15 on which the noise filter 12 is mounted, for example, by soldering 51. A filter case 52 made of flame retardant material housed from the open portion and potted 18 is assembled and arranged with the open portion downward, and the open portion is closed by the bottom surface of the rear portion 2b of the top cover 2. ing.

In this way, for example, it is possible to prevent the effect of, for example, the spread of fire on the top cover 2 when the coil 12b generates abnormal heat, and also to ensure the waterproofness of the noise filter 12 well. In addition, the present invention is not limited to only the embodiments described above and shown in the drawings,
The present invention can be implemented with appropriate changes without departing from the scope.

[0036]

The present invention is as described above.
The following effects are obtained. According to the washing machine of the first aspect, the arrangement of the control device, the reactor, and the noise filter can be easily performed because the top cover can be attached to one top cover, and the wiring between the control device, the reactor, and the noise filter can also be easily performed. Since it is possible to concentrate on the top cover portion, it is possible to easily and inexpensively.

According to the washing machine of the second aspect, it is possible to improve the serviceability of necessary inspection and repair of the control device and the noise filter, and to improve the waterproofness of the reactor portion against splashing water from above. Can be.
According to the washing machine of the third aspect, it is possible to improve the waterproofness of the reactor portion against splashing of water from below, and also to prevent the contact of the hand with the reactor due to mischief or the like.

According to the washing machine of the fourth aspect, the assembling arrangement of the reactor can be more accurately and easily performed. According to the washing machine of the fifth aspect, the noise filter can be fixed by using the attachment of the rear panel to the rear part of the top cover, so that the noise filter can be excellent in assemblability and disassembly.

According to the washing machine of the sixth aspect, it is possible to prevent the influence of the spread of fire on the top cover when the noise filter generates abnormal heat, and also to ensure the waterproofness of the noise filter. According to the washing machine of the seventh aspect, the noise filter can be disposed at the rear portion of the top cover without requiring a large space, and the waterproofness of the noise filter can be further improved.

According to the washing machine of the eighth aspect, the combination of the filter cover and the filter case can be performed in a state where the necessary conductive wires are connected to the circuit board housed in the filter case with the noise filter mounted. As a result, the assemblability can be improved. According to the washing machine of claim 9,
The filter case can be more securely held by the filter cover, and the filter cover can be easily assembled.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a main part showing a first embodiment of the present invention.

FIG. 2 is a perspective view of the upper half of the washing machine.

FIG. 3 is an exploded perspective view of a main part in an inverted state.

FIG. 4 is an enlarged exploded perspective view of a reactor arrangement portion in an inverted state.

FIG. 5 is an enlarged vertical sectional side view of a reactor arrangement portion in an inverted state.

FIG. 6 is an enlarged exploded perspective view of a noise filter portion.

FIG. 7 is an enlarged vertical cross-sectional side view of a noise filter assembly part.

FIG. 8 is an electric circuit diagram

FIG. 9 is a view corresponding to FIG. 5, showing a second embodiment of the present invention.

FIG. 10 is a view corresponding to FIG. 6, showing a third embodiment of the present invention;

[Explanation of symbols]

1 is an outer box, 2 is a top cover, 2a is a front part, 2b is a rear part, 2c is a side part, 4 is a control device, 5 is a reactor, 6 is a rib, 8 is a lower cover, 12 is a noise filter, and 15 is a circuit. Substrate, 16 is a filter case, 19 is a power cord wire (conductive wire), 20 is a lead wire (conductive wire), 21 is a filter cover, 22 is a cutout portion, 23 is a protrusion (engaging portion), 24
Is a holding part, 28 is a rear panel, 43 is a lower cover, 52
Indicates a filter case.

Claims (9)

[Claims] 1. A control device for controlling operation, a reactor for cutting off harmonics emitted from the control device, and a noise filter for cutting off noise, and a top cover mounted on an upper part of an outer case is provided. A washing machine comprising: a control unit, a reactor, and a noise filter arranged on a top cover. 2. The control device is arranged at the front of the top cover, the reactor is arranged at the side of the top cover, and the noise filter is arranged at the rear of the top cover. The front and rear of the top cover are opened upward. 2. The method according to claim 1, wherein each of the first and second concave portions is formed in a concave shape in which a side portion is opened downward.
The washing machine as described. 3. The washing machine according to claim 2, further comprising a lower cover that covers a lower portion of the disposed reactor. 4. The washing machine according to claim 1, wherein a rib for positioning the reactor is formed on the top cover. 5. The washing machine according to claim 1, wherein the noise filter is sandwiched between a top cover and a rear panel attached to the top cover. 6. The washing machine according to claim 1, wherein the noise filter is housed and arranged in a filter case made of a flame-retardant material. 7. A filter in which a filter case is open on one side and a noise filter mounted on a circuit board is housed from the open portion, and the filter is disposed with the open portion on a side and covers the open portion. The washing machine according to claim 6, further comprising a cover. 8. The washing machine according to claim 7, wherein the filter cover has a slit-shaped notch at a position corresponding to the conductive wire connected to the circuit board, through which the conductive wire passes. 9. The washing machine according to claim 7, wherein the filter cover has an engaging portion that engages with the top cover, and has a pressing portion that presses the filter case.