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Drum-type washing machine

A drum-type washing machine and drum technology, which is applied to other washing machines, washing machines with containers, control devices of washing machines, etc., can solve the problems of unbalanced ball balancer, abnormal vibration, large drum vibration amplitude, etc., so as to suppress imbalance and reduce unbalanced effect

Inactive Publication Date: 2016-03-02
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to this vibration, the following problems sometimes arise: the front-loading washing machine itself moves, the noise is too loud, and the rotation speed above a certain predetermined rotation speed cannot be operated, etc.
However, there is a problem that the drum washing machine often stops due to abnormal vibration due to the large vibration amplitude of the drum
In summary, the root cause is a large imbalance in the ball balancer itself when the drum starts to rotate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0032] figure 1 It is a side sectional view of the drum-type washing machine 51 of Embodiment 1 of this invention. A bottomed cylindrical water tank 52 is housed inside the drum type washing machine 51. A bottomed cylindrical drum 53 is housed in the water tank 52. On the front side of the drum-type washing machine 51 where the laundry is inserted (in figure 1 The upper side is the left side) A door 57 is provided in a freely opening and closing manner. The drum 53 is provided with a drum opening 53a communicating with the inside of the drum 53 through the water tank opening 52a of the water tank 52. The drum 53 has a rotating shaft 35 that rotatably supports the drum 53 on the drum bottom surface 53b. The drum 53 is arranged obliquely so that the bottom side is lower than the front side. The water tank 52 is also arranged obliquely along the drum 53. By inclining the drum 53, the drum opening 53a is arranged to face diagonally upward. Therefore, the user can take out the ...

Embodiment approach 2

[0056] Next, a drum-type washing machine 61 according to Embodiment 2 of the present invention will be described. Figure 5 It is a side sectional view of the drum-type washing machine 61 of Embodiment 2 of this invention. Among the components of the drum-type washing machine 61, the same components as those of the drum-type washing machine 51 of the first embodiment are assigned the same reference numerals as those of the first embodiment, and the description thereof will be omitted.

[0057] Image 6 It is a perspective view of the drum 53 of the drum-type washing machine 61 of Embodiment 2 of this invention. Image 6 Shows the state where the rotation is stopped.

[0058] In the second embodiment, a ball balancer 30 (first balancer) is provided in the vicinity of the drum end peripheral portion on the drum opening 53a side. A ball balancer 62 (second balancer) is provided near the drum end circumference on the drum bottom surface 53b side. As described below, these two ball bal...

Embodiment approach 3

[0068] Next, a drum-type washing machine 71 according to Embodiment 3 of the present invention will be described. Figure 8 It is a side sectional view of the drum-type washing machine 71 of Embodiment 3 of this invention. Among the components of the drum-type washing machine 71, the same components as those of the drum-type washing machine 51 of the first embodiment are assigned the same reference numerals as those of the first embodiment, and the description thereof is omitted.

[0069] Picture 9 It is a perspective view of the drum 53 of the drum-type washing machine 71 of Embodiment 3 of this invention. Picture 9 Shows the state where the rotation is stopped.

[0070] In the third embodiment, a ball balancer 72 (second balancer) is provided near the drum end peripheral portion on the drum bottom plate 53b side. A fluid balancer 73 (first balancer) is provided near the drum end circumference on the drum opening 53a side. These balancers are formed by accommodating heavy objec...

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Abstract

A drum-type washing machine (51) provided with: a bottomed cylindrical drum (53), which is supported to rotate freely on a horizontal or inclined rotation shaft (35) and has a drum opening (53a) through which laundry (13) is cast; and a water tank (52) for holding the drum (53). The washing machine is also provided with: a driving unit (54) for rotating the drum (53); and a first balancer (30), which is provided near the drum edge at the drum opening (53a) end and in which first weights (58) are housed inside a first tube-shaped container in which a first hollow tube is formed in a circular shape. The washing machine is also provided with: a second balancer (31), which is provided near the drum edge at the end opposite to the drum opening (53a) end and in which a second weight (32) is housed inside a second tube-shaped container in which a second hollow tube is formed in a circular shape; and a control unit (56) for controlling the driving unit (54).

Description

Technical field [0001] The present invention relates to a drum-type washing machine equipped with a rotating drum that accommodates laundry, and washing, rinsing, and dehydrating the laundry are performed in the drum. Background technique [0002] In general, there is a case in which, in the spin-drying process of a drum type washing machine having a horizontal or inclined rotating shaft, the laundry is in an uneven state in the drum, that is, an unbalanced state. For this reason, in dehydration, a skew force is sometimes applied to the rotating shaft to cause vibration. The amplitude of the vibration is proportional to the square of the rotation speed of the rotating drum. Due to this vibration, the following problems sometimes occur: the drum-type washing machine itself moves and the noise is so strong that it cannot be operated at a rotation speed higher than a certain predetermined rotation speed. [0003] In order to reduce the vibration caused by the unbalance of the laundr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06F33/02D06F23/02D06F23/06D06F37/04
CPCD06F37/225
Inventor 内山亘细川明宏藤井友弘松本俊成
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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