CN105525490B - Full-automatic washing machine - Google Patents
Full-automatic washing machine Download PDFInfo
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- CN105525490B CN105525490B CN201410562800.2A CN201410562800A CN105525490B CN 105525490 B CN105525490 B CN 105525490B CN 201410562800 A CN201410562800 A CN 201410562800A CN 105525490 B CN105525490 B CN 105525490B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Abstract
The invention discloses a full-automatic washing machine, which comprises an outer barrel, an inner barrel arranged in the outer barrel, wherein the inner barrel is a water containing barrel, a water outlet hole is formed in the upper part of the inner barrel, and the washing machine further comprises an overflow detection device for detecting whether the inner barrel overflows or not. The upper part of the inner barrel with the water outlet hole refers to the area above the height 5/6 of the barrel body. The overflow detection device is arranged at a drain outlet or in a drain opening at the bottom of the outer barrel. The overflow detection device comprises two conductive metal probes, wherein the conductive metal probes are connected with a control panel of the washing machine, and whether the inner barrel overflows or not is judged by detecting the voltage/current/conductivity value between the two conductive metal probes. The two conductive metal probes are arranged at a water outlet of the outer barrel, are sealed with the outer barrel and extend into the outer barrel from the bottom of the outer barrel. Or a groove is formed in the bottom of the outer barrel, a water outlet is formed in the bottom of the groove, and the two conductive metal probes are arranged at the opening of the groove or in the groove. The invention has the characteristics of simple structure, convenient production and assembly and water saving.
Description
Technical Field
The invention relates to the field of washing machines, in particular to a full-automatic washing machine, and particularly relates to a full-automatic washing machine for detecting water inflow and water overflow of an inner barrel.
Background
As shown in fig. 1, a conventional pulsator type washing machine generally includes a pulsator 1 ', an inner tub 2 ', an outer tub 3 ' and a cabinet 4 ', which are sequentially disposed from inside to outside, wherein the pulsator 1 ' is disposed at the center of the bottom of the inner tub 2 ' and is rotated by a driving unit 5 '. The top of the inner barrel 2 ' is provided with a balance ring 6 ', the side wall of the inner barrel 2 ' is longitudinally provided with a plurality of rows of dewatering holes 21 ', the bottom of the inner barrel 2 ' is provided with a drainage hole 22 ', and the drainage hole 22 ' is also penetrated by an output shaft 51 ' of the driving device 5 '. As shown in fig. 2, an air chamber 31 'and a water level sensor (not shown) are provided at the bottom of the side wall of the outer tub 3', a overflow 32 'is provided at the top, a drain 7' is provided at the bottom, the air chamber 31 'and the water level sensor are used for detecting the water level of the outer tub 3', and the overflow 32 'is used for draining excessive intake water from the overflow 32' when the water level sensor is damaged.
When the washing machine starts to work, the drain valve 8 'is closed, water enters the inner barrel 2', and when the inner barrel 2 'is filled with water, the whole outer barrel 3' is filled with water through the dewatering holes 21 'on the side wall of the inner barrel 2', namely, water is filled between the bottom of the outer barrel 3 'and the bottom of the inner barrel 2' and between the side wall of the outer barrel 3 'and the side wall of the inner barrel 2'; the water level in the barrel is detected through the air chamber 31 ' and the water level sensor, after the water in the barrel reaches a set water level, water feeding is stopped, the washing machine starts washing, specifically, the driving device 5 ' drives the impeller 1 ' to rotate in a reciprocating manner, the water and clothes in the inner barrel 2 ' roll over along with the rotation of the impeller 1 ', the clothes rub against each other, and meanwhile, the rolled clothes generate repeated friction with the impeller and the side wall of the inner barrel, so that the purpose of washing is achieved; after washing, the washing machine needs to discharge water flow in the tub, and then dehydrates clothes, specifically, when draining, the drain valve 8 ' is opened, the water flow between the outer tub 3 ' and the inner tub 2 ' is discharged out of the box body 4 ' through the drain opening 7 ' at the bottom of the outer tub 3 ', the drain valve 8 ' and the drain pipe 9 ' in sequence, meanwhile, the water in the inner tub 2 ' is discharged through the drain hole 21 ' to keep consistent with the liquid level of the outer tub 3 ', until the water flow in the inner tub 2 ' flows downwards, flows into the outer tub 3 ' from the drain hole 22 ' at the bottom of the inner tub 2 ', and then is discharged from the drain opening 7 ' at the bottom of the outer tub 3 '; during dewatering, the driving device 5 'drives the inner tub 2' to rotate at high speed, and the water in the clothes is discharged to the outer tub 3 'from the dewatering holes 21' on the side wall of the inner tub 2 'and the drain holes 22' at the bottom under the action of centrifugal force, and then discharged out of the washing machine through the drain opening 7 'and the drain pipe 9' (see fig. 1).
Because the existing impeller type washing machine does not participate in washing by the water filled between the inner barrel and the side wall of the outer barrel, the water really participating in washing is only the part in the inner barrel, so that the waste of water resources is large, and in addition, the concentration of the washing agent/washing powder in the washing liquid can be reduced by the excessive water between the inner barrel and the outer barrel.
Meanwhile, as water flow frequently enters and exits between the inner barrel and the outer barrel, after the continuous use, the area between the side walls of the inner barrel and the outer barrel also forms a space for storing dirt and dirt, and water scale in tap water, free substances of washing powder, cellulose of clothes, organic matters of human bodies, dust and bacteria brought by the clothes are easily remained between the side walls of the inner barrel and the outer barrel. The mold is a large amount of dirt accumulated in the long-term washing machine, and the dirt is bred and propagated because the dirt can not be effectively removed, if the dirt which can not be seen by a user is not cleaned, bacteria can be attached to clothes after next washing to bring to a human body, and the problem of cross infection of washing is caused.
In addition, as the thread scraps float in the water when the washing machine washes, the water is discharged from the lower part of the inner barrel by adopting the existing drainage mode, and finally the thread scraps are remained on the clothes, thereby affecting the washing effect of the clothes.
The present invention has been made in view of this situation.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a full-automatic washing machine with an inner barrel as a water containing barrel and capable of detecting water inflow and overflow of the inner barrel.
In order to solve the technical problems, the invention adopts the technical scheme that: a full-automatic washing machine comprises an outer barrel and an inner barrel arranged in the outer barrel, wherein the inner barrel is a water containing barrel, a water outlet hole is formed in the upper portion of the inner barrel, and the washing machine further comprises an overflow detection device for detecting whether the inner barrel overflows or not.
Further, the upper part of the inner barrel with the water outlet hole refers to an area above the height 5/6 of the barrel body.
Further, the overflow detection device is installed at a drain outlet at the bottom of the outer barrel.
Furthermore, the overflow detection device is arranged at the bottom of the outer barrel and comprises two conductive metal probes, the conductive metal probes are connected with a control panel of the washing machine, and whether the inner barrel overflows or not is judged by detecting the voltage/current/conductivity value between the two conductive metal probes.
Furthermore, the two conductive metal probes are arranged at a drain outlet of the outer barrel, are sealed with the outer barrel and extend into the outer barrel from the bottom of the outer barrel.
Furthermore, a groove is formed in the bottom of the outer barrel in a partially recessed mode, a water outlet is formed in the bottom of the groove, and the two conductive metal probes are installed at the opening of the groove or in the groove.
Furthermore, a groove is formed in the bottom of the outer barrel in a partially downward concave mode, a water outlet is formed in the bottom of the groove, and the two conductive metal probes are installed on the side wall of the groove.
Further, the groove extends downwards along the side wall of the outer barrel, the groove and the outer barrel form a common side wall, and the two conductive metal probes are mounted on the common side wall.
Furthermore, the two conductive metal probes are arranged on the side wall of the water outlet of the outer barrel, are sealed with the side wall of the water outlet and extend into the water outlet from the outside.
Furthermore, the washing machine also comprises an overflow alarm device, the overflow detection device and the overflow alarm device are respectively connected with a control panel of the washing machine, and when the overflow of the inner barrel is detected, the control panel controls the overflow alarm device to alarm and closes the water inlet valve.
Furthermore, the washing machine is not provided with a drain valve, and the drain port is communicated with the drain pipe. When the water is drained, the inner barrel is driven to rotate at a high speed to generate centrifugal force, and water in the inner barrel and moisture in clothes spirally rise and are drained to the outer barrel through the water outlet hole of the inner barrel and directly drained through the water outlet and the water drainage pipe.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
The inner barrel of the washing machine is a water containing barrel, washing water does not need to enter a region between the inner barrel and the outer barrel, and only proper water quantity of the inner barrel needs to be injected, so that the washing water is greatly saved, and the water saving rate reaches 30-40%; in addition, the area between the inner barrel and the outer barrel does not participate in washing any more, and the dirt and the bred bacteria in the area between the inner barrel and the outer barrel cannot be in water flow contact with clothes in the inner barrel, so that the cross infection of the bacteria can be effectively avoided, and the washing machine is more sanitary, environment-friendly and safe to use; because during dehydration drainage, the inner barrel rotates at a high speed to drive water flow to flow upwards and discharge from the water outlet hole, thread scraps floating in water cannot remain on clothes and are completely discharged, and the washing is cleaner.
The washing machine of the invention has the advantages that the inner barrel is the water containing barrel, no water is filled in the outer barrel, so the overflow of the inner barrel directly flows into the outer barrel, the overflow detection device is arranged in the outer barrel, and is optimally arranged at the bottom of the outer barrel for timely alarming.
The invention improves the detection of the overflow, cancels the overflow port and the overflow pipeline on the outer barrel of the existing washing machine, simplifies the production and the assembly of the outer barrel, further reduces the cost and simultaneously avoids the collision between the overflow pipeline and the box body during the dehydration.
Drawings
FIG. 1 is a schematic view of a prior art washing machine;
FIG. 2 is a schematic view of a structure of an outer tub of a related art washing machine;
FIG. 3 is a schematic view of the structure of the washing machine of the present invention;
fig. 4 to 11 are schematic views showing different installation of the overflow detecting device of the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 3, the full automatic washing machine of the present invention comprises a cabinet 1, an outer tub 2 disposed in the cabinet 1, an inner tub 3 disposed in the outer tub 2, and a pulsator 4 disposed in the inner tub 3, wherein the outer tub 2 is connected to the cabinet 1 of the washing machine by a plurality of suspenders, and a driving device 5 for driving the inner tub 3 and the pulsator 4 to rotate is disposed at the lower part of the outer tub 2; the inner barrel 3 is a water barrel, a water outlet 31 is arranged at the upper part, the water outlet 31 is generally arranged in an area above the height 5/6 of the inner barrel body 32, and the water outlet 31 is preferably arranged in an area above the height 9/10 of the inner barrel body 32, so that the water flow stirred can not be discharged from the water outlet 31 when washing is carried out, a balance ring 33 is arranged on an opening at the top part of the inner barrel 3, the water outlet 31 is arranged below the balance ring 33, the inner barrel body 32 and an inner barrel bottom 34 at the lower part of the water outlet 31 are sealed, an inner barrel shaft 51 is arranged at the lower part of the inner barrel bottom 34, penetrates through the outer barrel bottom 21 to be connected with a driving device 5 and is driven by the driving device 5; the impeller 4 is arranged at the center of the bottom of the inner barrel 3, the impeller shaft 52 is coaxially arranged in the inner barrel shaft 51 through the inner barrel bottom 34, is connected with the driving device 5 and is driven by the driving device 5 to rotate, and the impeller shaft 52 and the inner barrel bottom 34 are sealed. Since the inner tub 3 is a water tub, and the inner tub 3 flows into the outer tub 2 if overflowing, the outer tub 2 is provided with an overflow detecting device 6 for detecting whether the water in the inner tub 2 overflows.
The washing machine can judge the water inflow according to the water inflow time, or is provided with an inner barrel water amount detection device which is a flow sensor arranged on a water inflow waterway and detects the water inflow in the inner barrel through the flow sensor; or the detection device is a weight sensor and is arranged at the joint of the suspender and the box body and/or the joint of the suspender and the outer barrel suspender seat, and the water inflow is judged by detecting the weight change of the outer barrel through the weight sensor; still alternatively, the weight sensor is mounted on the bottom of the washing machine cabinet, and the water inlet amount is determined by detecting the change of the whole weight of the washing machine by the weight sensor (not shown in the figure). In the water inlet process of the washing machine, if the water inlet is judged to be faulty, water is always fed, the water inlet exceeds a set amount, water overflows outwards from the water outlet hole 31 at the upper part of the inner barrel 3 and even the top opening, the overflow flows into the outer barrel 2, the overflow is detected by the overflow detection device 6 arranged at the bottom of the outer barrel 2, and the washing machine gives an alarm and stops water inlet.
The washing machine starts to work, water is fed into the inner barrel 3, after the water in the inner barrel reaches a proper water amount, the water feeding is stopped, the washing machine starts to wash, specifically, the driving device 5 drives the impeller 4 to rotate in a reciprocating mode, the water and clothes in the inner barrel 3 roll along with the water and the clothes rub against each other under the driving of the impeller 4, meanwhile, the rolled clothes generate repeated friction with the impeller and the side wall of the inner barrel to achieve the purpose of washing, the driving device 5 can be controlled to drive the impeller 4 and the inner barrel 3 to rotate in a positive and negative mode or in the same direction and different speeds, and the existing full-automatic impeller washing machine has various washing modes for driving the inner barrel and the impeller to rotate, and the washing modes for driving the inner barrel and the impeller to rotate are not the purpose of improvement of the washing machine, so the examples; after washing, the washing machine needs to discharge water in the inner tub 3 and then dewater the clothes, specifically, the driving device 5 drives the inner tub 3 to increase the rotation speed within a set range, the water in the inner tub 3 and the water in the clothes spirally rise along the inner wall of the inner tub under the action of centrifugal force, and the water is discharged to the outer tub 2 through the water outlet hole 31 at the upper part of the inner tub and then discharged through the water outlet hole 7 at the lower part of the outer tub 2.
Furthermore, the water outlet 7 at the bottom of the outer barrel of the washing machine is not provided with a drain valve, when the washing machine drains water, water in the inner barrel 3 and moisture in clothes spirally rise and are discharged to the outer barrel 2 through the water outlet hole 31 of the inner barrel, and then are discharged through the water outlet 7 and the drain pipe 8. When the washing machine is a lower-drainage washing machine, the water outlet is directly communicated with the drain pipe; when the washing machine is an upper-drainage washing machine, the drainage port is communicated with the drainage pipe through the drainage pump.
Example one
As shown in fig. 4 to 6, the overflow detecting device 6 of the present embodiment is installed at the drain opening 7 at the bottom of the outer tub, specifically, on the outer tub bottom 21 or the outer tub side wall 22 around the drain opening 7 or in the drain opening 7. The installation position of the overflow detection device 6 is considered according to the water level of the bottom of the outer barrel after the washing machine drains and the accuracy of the overflow detection. The higher the position of the overflow detecting device 6 is away from the bottom surface of the outer barrel, the more water is needed to overflow, the overflow detecting device 6 can detect and send out signals, therefore, the lower the sensitivity is, the water cost is increased.
Example two
As shown in fig. 4 to 11, the overflow detecting device 6 of the present embodiment includes two conductive metal probes 61, wherein the conductive metal probes 61 are connected to the control board of the washing machine, and the overflow of the inner tub is determined by detecting the voltage/current/conductivity value between the two conductive metal probes 61.
EXAMPLE III
As shown in fig. 4, two conductive metal probes 61 according to the present embodiment are installed at the tub outlet 7. The two conductive metal probes 61 are sealed with the outer barrel 2 and extend into the outer barrel 2 from the bottom of the outer barrel 2. Because the water outlet 7 is arranged at the lowest part of the outer barrel bottom 21, the two conductive metal probes 61 are arranged along the circumferential direction of the water outlet 7 or sequentially arranged along the radial direction of the water outlet, and then are arranged along a water flow track to the water outlet, wherein the water flow track is a water drainage groove which is arranged at the outer barrel bottom and leads to the water outlet. The closer the conductive metal probe 61 is to the drain, the more sensitive the detection, typically 5-25 mm.
Example four
As shown in fig. 7, a groove 23 is partially recessed at the bottom of the outer tub 2, a water outlet 7 is disposed at the bottom of the groove 23, and two conductive metal probes 61 are mounted at the opening of the groove 23. Specifically, the electric metal probe 61 is installed at the periphery of the opening of the notch 23, extends into the tub 2 from the bottom of the tub, or is installed on the tub side wall 22 at the opening of the notch 23 (see fig. 8). Or two conductive metal probes 61 are installed in the groove 23, for example, at the bottom of the groove 23 (see fig. 9), the groove 23 can quickly collect overflow water from the inner tub, so that the conductive metal probes 61 sensitively detect the overflow water.
EXAMPLE five
As shown in fig. 10 and 11, a groove 23 is partially recessed from the bottom of the outer tub 2 according to the present embodiment, a drain opening 7 is disposed at the bottom of the groove 23, and two conductive metal probes 61 are mounted on the side wall of the groove 23. For the conductive metal probe 61 is installed on the outer tub bottom 21 or the outer tub side wall 22 (see fig. 4 and 6), the present embodiment does not need overflow to fill the whole outer tub bottom space below the conductive metal probe, the present embodiment structurally sets up to make the overflow converge in the groove, the conductive metal probe can quickly detect the overflow, and the conductive metal probe is suitable for both upper drainage and lower drainage washing machines, and when the washing machine is an upper drainage washing machine, the installation position of the conductive metal probe is only higher than the liquid level of the backflow water in the groove.
EXAMPLE six
As shown in fig. 11, the present embodiment is a further improvement on the fifth embodiment, in which the groove 23 of the present embodiment is formed to extend downward along the sidewall of the outer tub 2, that is, the groove 23 and the outer tub 2 have a common sidewall, and the two conductive metal probes 61 are mounted on the common sidewall, which is advantageous for the mounting of the conductive metal probes because the depth of the groove is not deep, and other positions of the groove sidewall are inconvenient for the sealing and fixing of the conductive metal probes.
EXAMPLE seven
The two conductive metal probes 61 of the present embodiment are mounted on the side wall of the outer tub drain opening 7, sealed with the side wall of the drain opening 7, and extend into the drain opening 7 from the outside (see fig. 5). Compared with the above embodiments, the overflow detection is more sensitive, and only when a small amount of overflow enters the water outlet, an overflow signal is sent out immediately.
Example eight
The washing machine also comprises an overflow alarm device, the overflow detection device and the overflow alarm device are respectively connected with the control panel of the washing machine, and when the overflow in the water inlet process of the inner barrel is detected, the control panel controls the overflow alarm device to alarm and closes the water inlet valve.
When the washing machine in each of the above embodiments is an upper drain washing machine, in order to prevent the backflow water in the drain line from affecting the detection result of the overflow detection device after the drain is completed, the conductive metal probe is disposed at a position higher than the level of the backflow water in the outer tub 2 of the washing machine.
The embodiments in the above embodiments can be further combined or replaced, and the embodiments are only used for describing the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention, and various changes and modifications made to the technical solution of the present invention by those skilled in the art without departing from the design idea of the present invention belong to the protection scope of the present invention.
Claims (3)
1. The utility model provides a full-automatic washing machine, includes outer bucket and locates the interior bucket in the outer bucket, interior bucket is the steel ladle, is equipped with apopore, its characterized in that in the upper portion: the washing machine also comprises an inner barrel water quantity detection device for detecting the water quantity of the inner barrel, an overflow detection device for detecting whether the inner barrel overflows and an overflow alarm device, wherein the overflow detection device and the overflow alarm device are respectively connected with a control panel of the washing machine; the overflow detection device is arranged at the bottom of the outer barrel and comprises two conductive metal probes, the conductive metal probes are connected with a control panel of the washing machine, and whether the inner barrel overflows or not is judged by detecting the voltage/current/conductivity value between the two conductive metal probes; the two conductive metal probes are arranged at a water outlet of the outer barrel, are sealed with the outer barrel and extend into the outer barrel from the bottom of the outer barrel; the bottom of the outer barrel is partially recessed to form a groove, a water outlet is formed in the bottom of the groove, and the two conductive metal probes are arranged in the groove.
2. A full automatic washing machine according to claim 1, characterized in that: the upper part of the inner barrel with the water outlet hole refers to the area above the height 5/6 of the barrel body.
3. A full automatic washing machine according to claim 1, characterized in that: the overflow detection device is arranged at a drain outlet at the bottom of the outer barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410562800.2A CN105525490B (en) | 2014-10-21 | 2014-10-21 | Full-automatic washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410562800.2A CN105525490B (en) | 2014-10-21 | 2014-10-21 | Full-automatic washing machine |
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| Publication Number | Publication Date |
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| CN105525490A CN105525490A (en) | 2016-04-27 |
| CN105525490B true CN105525490B (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410562800.2A Active CN105525490B (en) | 2014-10-21 | 2014-10-21 | Full-automatic washing machine |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107558115B (en) * | 2016-06-30 | 2021-06-04 | 佛山市顺德海尔电器有限公司 | Washing machine |
| CN107558088A (en) * | 2016-06-30 | 2018-01-09 | 无锡小天鹅股份有限公司 | Washing machine |
| CN108755003B (en) * | 2018-05-28 | 2023-08-22 | 重庆海尔洗衣机有限公司 | Washing machine and overflow detection method |
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| JPS59166193A (en) * | 1984-03-06 | 1984-09-19 | 松下電器産業株式会社 | One-tub type dehydrator washer |
| JPH08155184A (en) * | 1994-12-05 | 1996-06-18 | Hitachi Ltd | Spinning and washing machine |
| CN1128819A (en) * | 1994-08-31 | 1996-08-14 | 株式会社东芝 | Fully automatic washing machine |
| KR20000043376A (en) * | 1998-12-29 | 2000-07-15 | 구자홍 | Laundry machine operated using centrifugal force with no hole on the wall of the water tank |
| CN102560961A (en) * | 2012-01-16 | 2012-07-11 | 贝国寅 | Sealed inner barrel, washing machine using the same, and washing method of the washing machine |
| CN104005201A (en) * | 2014-05-21 | 2014-08-27 | 合肥荣事达三洋电器股份有限公司 | Roller washing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100516342C (en) * | 2004-07-30 | 2009-07-22 | 金羚电器有限公司 | Water saving type washer |
| CN201136988Y (en) * | 2007-12-07 | 2008-10-22 | 合肥荣事达洗衣设备制造有限公司 | Protector for preventing water inlet without stop after washing machine water level transducer failure |
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- 2014-10-21 CN CN201410562800.2A patent/CN105525490B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59166193A (en) * | 1984-03-06 | 1984-09-19 | 松下電器産業株式会社 | One-tub type dehydrator washer |
| CN1128819A (en) * | 1994-08-31 | 1996-08-14 | 株式会社东芝 | Fully automatic washing machine |
| JPH08155184A (en) * | 1994-12-05 | 1996-06-18 | Hitachi Ltd | Spinning and washing machine |
| KR20000043376A (en) * | 1998-12-29 | 2000-07-15 | 구자홍 | Laundry machine operated using centrifugal force with no hole on the wall of the water tank |
| CN102560961A (en) * | 2012-01-16 | 2012-07-11 | 贝国寅 | Sealed inner barrel, washing machine using the same, and washing method of the washing machine |
| CN104005201A (en) * | 2014-05-21 | 2014-08-27 | 合肥荣事达三洋电器股份有限公司 | Roller washing machine |
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Effective date of registration: 20201111 Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee after: QINGDAO HAIER WASHING MACHINE Co.,Ltd. Patentee after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee before: QINGDAO HAIER WASHING MACHINE Co.,Ltd. |