TWI796509B - front load washing machine - Google Patents

Abstract

The drum-type washing machine disclosed in the present disclosure comprises: a main body; a bearing cylinder installed in the aforementioned main body; a drum rotatably supported inside the aforementioned bearing drum and containing laundry; a baffle installed on the inner peripheral surface of the aforementioned drum, and stirring the aforementioned laundry; and a control unit. The cross-sectional shape of the baffle is trapezoidal, and a plurality of water holes communicating with the inner space of the baffle are provided on the first side.

Description

front load washing machine

field of invention The present disclosure relates to a drum type washing machine with a baffle for agitating the laundry contained in the drum.

Background of the invention A conventional drum-type washing machine has: a drum rotatably supported in the horizontal direction and containing laundry; and a drum surrounding the drum. The drum rotates with a predetermined amount of water stored in the drum. Slapping cleaning will be performed repeatedly. The aforementioned slapping cleaning is a cleaning method in which the laundry in the drum is lifted by a roughly mountain-shaped baffle equipped on the inner peripheral surface of the drum, and then naturally falls from a certain height toward the water surface. In Japanese Patent Application Laid-Open No. 2009-22688, a method has been proposed, for example, by forming a concave surface on the top of the baffle plate that is concave toward the inner peripheral surface of the drum, so as to realize the improvement of the cleaning performance brought about by the improvement of the washing mechanical force.

Summary of the invention However, in the above-mentioned conventional structure, in addition to the original washing method of the front-loading washing machine, that is, slap washing, rubbing washing by rubbing against the concave-convex surface is also performed. Thereby, although the washing mechanical force is improved to improve the cleaning performance, especially in the case of delicate clothes such as wool, there is a problem that the clothes are easily damaged.

An object of the present disclosure is to provide a drum-type washing machine in which damage to laundry is suppressed and cleaning performance is improved by improving the shape of a baffle for stirring laundry.

In order to achieve the above purpose, the drum-type washing machine disclosed in the present disclosure is equipped with: a main body; a bearing cylinder arranged in the aforementioned body; a drum rotatably supported inside the aforementioned bearing cylinder and containing laundry; a baffle installed in the aforementioned drum inner peripheral surface, and agitate the aforementioned washings; and a control unit. The cross-sectional shape of the baffle is trapezoidal, and a plurality of water holes communicating with the inner space of the baffle are provided on the first side.

Thereby, according to the type of laundry, washing can be performed in a washing manner suitable for the laundry.

The drum-type washing machine disclosed in the present invention can suppress the damage of the laundry caused by the increase of washing mechanical force, and improve the cleaning performance.

form for carrying out the invention The drum-type washing machine of the first aspect includes: a main body; a drum installed in the body; a drum rotatably supported inside the drum and containing laundry; a baffle installed on the inner periphery of the drum surface, and agitate the aforementioned washings; and a control unit. The cross-sectional shape of the baffle is trapezoidal, and a plurality of water holes communicating with the inner space of the baffle are provided on the first side.

Thereby, damage to laundry can be suppressed, and cleaning performance can be improved.

In the drum-type washing machine of the second aspect, in particular, in the first aspect, unevenness is arranged on the second side surface of the baffle.

Thereby, the washing mechanical force can be improved and the cleaning performance can be improved.

In the drum-type washing machine of the third aspect, especially in the first or second aspect, a plurality of water passage holes communicating with the inner space of the baffle are arranged on the upper surface of the baffle.

Thereby, damage to laundry can be suppressed, and cleaning performance can be improved.

The drum-type washing machine of the fourth aspect is, in any one of the first to third aspects, further comprising: a cloth quality detection unit configured to detect the cloth quality of the laundry put into the drum. During the cleaning process, the control unit will set the ratio of the left and right rotation time of the drum in response to the cloth quality of the laundry detected by the cloth quality detection unit.

Thereby, the cleaning performance can be greatly improved according to the type of laundry, or the damage of the laundry can be suppressed and the cleaning performance can be improved.

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In addition, this indication is not limited by this embodiment. (Embodiment 1)

Fig. 1 is a longitudinal sectional view of a washing machine in Embodiment 1 of the present invention. Fig. 2 is a block circuit diagram of the drum type washing machine. Fig. 3 is a perspective view showing the left side of the baffle of the drum type washing machine. Fig. 4 is a perspective view showing the right side of the baffle of the drum type washing machine. Fig. 5 is a front view of the drum and the baffle of the same drum type washing machine.

As shown in FIGS. 1 and 2 , inside the main body 1 of the drum type washing machine 100 , a drum 4 is horizontally (including substantially horizontally) vibration-proof supported by a damper 2 and a suspension 3 . Inside the drum 4, the drum 5 for accommodating laundry is rotatably supported in a horizontal direction (including a substantially horizontal direction). The drum 5 is fixed to one end side of a rotating shaft 8 pivotally supported at the center of the drum 4 in a rotatable manner. A drum pulley 9 is fixed to the other end side of the rotating shaft 8 . A motor 10 is mounted on the bottom of the bearing tube 4 . The motor pulley 11 provided in the motor 10 and the drum pulley 9 are connected by a belt 12 . Thereby, the power of the motor 10 is transmitted to the drum 5, and the drum 5 rotates.

The drum 5 has a plurality of dehydration holes 6 on the side, and a plurality of baffles 7 for agitating the laundry on the inner peripheral surface. The cross-sectional shape of the baffle 7 is formed into a trapezoidal shape (including a substantially trapezoidal shape). In addition, a plurality of baffles 7 may be arranged at equal intervals. In this embodiment, three baffles 7 are arranged.

As shown in FIG. 3 , FIG. 4 , and FIG. 5 , the baffle plate 7 is provided with a concave-convex surface 21 on the right side in a front view. In addition, a plurality of side water passage holes 22 and a plurality of upper surface water passage holes 23 communicating with the inner space of the baffle plate 7 are provided on the left side surface and the upper surface portion of the baffle plate 7, respectively.

A clothes inlet 25 is provided on the front of the main body 1 , and the clothes inlet 25 is covered by a cover 24 so that it can be opened and closed freely. The user will take out the laundry and put it into the drum 5 by opening the cover 24 and passing through the laundry inlet 25 .

A lotion input container 13 for accommodating lotion and a water supply valve 14 are disposed above the holder 4 . The detergent input container 13 and the water supply valve 14 are connected by a water supply path 15 . The water supply valve 14 sends water from the outside of the main body 1 to the detergent input container 13 through the water supply path 15 . The water sent into the detergent input container 13 passes through the water injection hose 16 connecting the container 4 and the detergent input container 13 together with the detergent, and is sent into the container 4 and the drum 5 .

A drain pump 17 is arranged at the lower part of the socket 4 . The drain pump 17 is connected to the bottom surface of the support tube 4 through the drain hose 18, and the water in the support tube 4 will pass through the drain path 19 to drain out of the machine.

On the upper part of the front surface of the main body 1, there is provided an operation display part 30 for the user to select the operation stroke. The user inputs operation details from the input setting unit 31 constituting the operation display unit 30 . The inputted information will be displayed on the display unit 32 to notify the user.

The water level detection part 35 detects the water level of the washing water in the tub 4 .

The amount of cloth detection unit 33 detects the load torque as the input current when the dry laundry is put into the drum 5. The aforementioned load torque refers to the load torque applied to the motor 10 when the motor 10 is rotated for a certain period of time. 10 load torque. Then, the cloth amount detecting unit 33 judges the capacity of the laundry thrown into the drum 5 according to the load torque.

The cloth quality detection unit 34 will be based on: the water supply flow detected by the water supply flow detection unit 36, the cloth quantity detected by the cloth quantity detection unit 33, and the water level set in response to the cloth quantity. The water supply time information is used to detect the cloth quality of the laundry.

After the operation content is set by the operation display unit 30 , the data from the water level detection unit 35 , cloth amount detection unit 33 , water supply flow detection unit 36 , etc. will be input to the control unit 20 . The control unit 20 controls the motor 10, the water supply valve 14, the drain pump 17, and the like to perform washing operations including washing, rinsing, and dehydration.

Also, the control unit 20 measures the elapsed time from an arbitrary time point by controlling the timekeeping unit 37 .

With respect to the front-loading-type washing machine 100 constituted as above, its operation and function will be described.

Fig. 6 is a flow chart showing the operation of the front-loading washing machine in the first embodiment of the present invention.

The lid 24 is opened, and the laundry is put into the drum 5 from the clothes inlet 25 (step S1). Then, the power switch (not shown) is turned on by using the input setting part 31 of the operation display part 30 . After the start switch (not shown) is operated to start the operation (step S2), the drum 5 rotates only for a short time. At this time, the cloth amount of the laundry in the dry state is detected by the cloth amount detection unit 33 (step S3 ), and the detected cloth amount is input into the control unit 20 .

After the amount of cloth is detected, the water level and detergent amount set according to the amount of cloth will be displayed on the display unit 32 (step S4).

Next, the water supply valve 14 is activated to start water supply, and the water is supplied into the container 4 together with the lotion put into the lotion input container 13 . Then, the detection of the water supply flow rate by the water supply flow rate detection part 36 (step S5), and the timing of the water supply time by the timer part 37 (step S6) are performed.

Then, the cloth quality is detected by the cloth amount, the water supply flow rate, and the water supply time until reaching the water level set according to the cloth amount (step S7). That is, it is detected whether there are more general cottons or more delicate clothes such as wool.

During the cleaning process, the drum 5 is alternately rotated to the right and to the left from the front view, so that the laundry is rotated for cleaning. When the detected cloth quality is more common cottons (No in step S8), the control unit 20 will set more mixing ratio when the drum 5 rotates to the left (refer to FIG. 5) (step S9). On the other hand, when there are many delicate clothes (Yes in step S8), the control unit 20 will set a higher mixing ratio when the drum 5 rotates clockwise (see FIG. 5) (step S10). The control unit 20 executes the washing and stirring course under such settings (step S11 ).

During the washing process, the lifted laundry will be lifted to a certain height. After the lifted laundry reaches a certain height, it will fall towards the water surface below the drum 5 . After the laundry is slapped to the water surface for slap cleaning, the dirt on the laundry will fall off.

During the cleaning process, when the drum 5 rotates to the left from the frontal view, when the laundry is lifted up, it will be hooked by the concave-convex surface 21 to lift the laundry. The laundry that is lifted falls after falling after friction with the concave-convex surface 21 of the baffle plate 7 when falling.

Also, when the drum 5 rotates right from the front view, the laundry will be lifted by the left side of the side water hole 22, and the washing water in the drum 5 will be brought into the baffle plate 7 while rotating. When the laundry falls and the baffle 7 rotates to the top of the drum 5, the washing water brought into the baffle 7 will be released from the side water hole 22 and the upper surface water hole 23 toward the bottom of the drum 5, and will be released The washing water will be sprinkled on the washing after falling.

In the determination of the cloth quality of the cleaning process, when it is judged that there are many cottons in general (no in step S8), and the stirring ratio when the drum 5 is rotated to the left is set more (step S9), it will be performed many times. Friction between the uneven surface 21 of the baffle plate 7 and the laundry. Thereby, the washing mechanical force will be further improved, so the washing mechanical force can be strengthened to remove the dirt.

In the cloth quality judgment, when it is judged that there are many delicate clothes (yes in step S8), and the mixing ratio when the drum 5 is rotated to the right is set more (step S10), the side water hole 22 is formed. The ratio of lifting the laundry will increase. Therefore, the drum 5 will rotate while bringing the washing water in the drum 5 into the baffle 7, and when the baffle 7 rotates to the top of the drum 5, the washing water contained in the baffle 7 will pass through the water hole 22 on the side. And upper surface water hole 23 discharges towards cylinder 5 below. As a result, the ratio of the released washing water to be sprinkled on the dropped laundry increases.

Accordingly, the circulation of the washing water in the drum 5 increases, and the amount of the washing water sprinkled on the portion of the laundry exposed upward from the water surface increases. As a result, dirt becomes easier to wash off. In addition, by reducing the agitation ratio on the uneven surface 21 side, washing can be performed with suppressed washing mechanical force, and the laundry can be washed gently while preventing damage to the laundry.

Then, after the cleaning process (step S11 ) ends, the control unit 20 will shift to the next process.

In addition, the side on which the side surface provided with the uneven surface 21 and the side water passage hole 22 of the baffle plate 7 is arrange|positioned is not limited to this embodiment. It is also possible to reversely install the right and left, but in this case, the directions of the above-mentioned left rotation and right rotation are reversed.

Moreover, although the baffle plate 7 of this embodiment demonstrated the form provided with the uneven surface 21, the side water passage hole 22, and the upper surface water passage hole 23, it is not limited to this. The baffle plate 7 only needs to have at least any one of the uneven surface 21 , the side water passage holes 22 , and the upper surface water passage holes 23 .

As mentioned above, the present embodiment is made as follows: in the baffle plate 7, the concave-convex surface 21 is arranged on the right side face in the front view, and a plurality of side water holes 22 are arranged on the left side face, and the upper surface part A configuration in which a plurality of upper surface water passage holes 23 are arranged. Thereby, the cleaning performance can be greatly improved according to the type of laundry, or the damage of the laundry can be suppressed and the cleaning performance can be improved.

In addition, the control unit 20 can set the ratio of the left and right rotation time of the drum 5 in response to the cloth quality of the laundry detected by the cloth quality detection unit 34 during the cleaning process. Thereby, the cleaning performance can be greatly improved according to the type of laundry, or the damage of the laundry can be suppressed and the cleaning performance can be improved.

As mentioned above, since the drum-type washing machine of the present disclosure optimizes the shape of the baffle and controls the rotation of the drum, it can greatly improve the cleaning performance according to the type of laundry, or suppress damage to the laundry and improve the washing performance. Cleaning performance, so it can be applied to other uses such as washing machines.

1: Ontology 2: Damper 3: Suspension 4: Bearing tube 5: Drum 6: Dehydration hole 7: Baffle 8: Rotation axis 9: Drum pulley 10: Motor 11: Motor pulley 12: belt 13: The lotion is put into the container 14: Water supply valve 15: Water supply path 16: Water injection hose 17: Drain pump 18: Drain hose 19: Drainage path 20: Control Department 21: concave and convex surface 22: side water hole 23: water hole on the upper surface 24: cover body 25: Clothes inlet 30: Operation and display unit 31: Input setting part 32: Display part 33: Cloth detection department 34: Cloth detection department 35:Water level detection unit 36: Water supply flow detection unit 37: Timing department 100: drum washing machine S1~S11: Steps

Fig. 1 is a side sectional view of a front-loading washing machine in Embodiment 1 of the present disclosure. Fig. 2 is a block circuit diagram of the drum type washing machine. Fig. 3 is a perspective view showing the left side of the baffle of the drum type washing machine. Fig. 4 is a perspective view showing the right side of the baffle of the drum type washing machine. Fig. 5 is a front view of the drum and the baffle of the same drum type washing machine. Fig. 6 is a flow chart showing the operation of the front-loading washing machine.

1: Ontology

2: Damper

3: Suspension

4: Bearing tube

5: Drum

6: Dehydration hole

7: Baffle

8: Rotation axis

9: Drum pulley

10: Motor

11: Motor pulley

12: belt

13: The lotion is put into the container

14: Water supply valve

15: Water supply path

16: Water injection hose

17: Drain pump

18: Drain hose

19: Drainage path

20: Control Department

24: cover body

25: Clothes inlet

30: Operation and display part

36: Water supply flow detection unit

100: drum washing machine

Claims (4)

A drum-type washing machine, comprising: a main body; a bearing cylinder disposed in the aforementioned body; a drum rotatably supported inside the aforementioned bearing drum and containing laundry; a baffle disposed on the inner peripheral surface of the aforementioned drum, and Agitate the aforementioned laundry; and the control unit, and the cross-sectional shape of the aforementioned baffle is formed into a trapezoidal shape, and a plurality of water holes communicating with the inner space of the aforementioned baffle are provided on the first side, and The 2 sides are provided with concavo-convexes, and in the washing process of rotating the drum alternately clockwise and counterclockwise, when washing delicate clothes, the rotation time of the drum in the direction in which the first side is placed ahead The ratio is set to be greater than the ratio of the rotation time of the aforementioned drum in the direction in which the aforementioned second side portion goes ahead to perform cleaning and agitation. According to claim 1, the drum-type washing machine is provided with a plurality of water holes communicating with the inner space of the aforementioned baffle on the upper surface of the baffle. The drum-type washing machine according to claim 1, wherein when washing clothes that are not delicate clothes, the ratio of the rotation time of the drum in the direction in which the second side part goes ahead is set to be higher than that of the first side The ratio of the rotation time of the above-mentioned drum to the direction where the face goes ahead is more, and the washing and agitation is performed. The drum-type washing machine according to any one of Claims 1 to 3, which is equipped with: a cloth quality detection part, which detects the cloth quality of the aforementioned laundry put into the aforementioned drum, and the aforementioned control part will respond to The ratio of the left and right rotation time of the drum is set according to the cloth quality of the laundry detected by the cloth quality detection unit.

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