CN205171190U - Rotary impeller for washing machine - Google Patents
Rotary impeller for washing machine Download PDFInfo
- Publication number
- CN205171190U CN205171190U CN201520800860.3U CN201520800860U CN205171190U CN 205171190 U CN205171190 U CN 205171190U CN 201520800860 U CN201520800860 U CN 201520800860U CN 205171190 U CN205171190 U CN 205171190U
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- China
- Prior art keywords
- impeller
- impeller blade
- washing machine
- boss
- washing
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Abstract
The utility model discloses a rotary impeller for washing machine, it includes an impeller disk, a middle part boss and a plurality of washing rib are established to the impeller disk upper surface, if annular strengthening rib and impeller blade are done to the impeller disk lower surface, the impeller blade links to each other with annular strengthening rib, establish the splice bar between the annular strengthening rib, establish impeller lining in the most inboard annular strengthening rib, washing rib ring is to distributing around the boss of middle part, and the washing rib radially is " S " shape along impeller disk, the middle part boss is round platform form, and protruding muscle is established to its side, and protruding muscle washs the rib smooth connection with corresponding, uncovered cell is established to the bottom surface on the boss of middle part, the runner is established in the boss in the middle part, and the upper shed of runner is established in uncovered cell bottom surface or side, and its under shed establishes between two adjacent impeller blades, the outside of peripheral annular strengthening rib, ann has filter unit in the uncovered cell, the impeller of compriseing the impeller blade satisfies: when impeller forward or reverse rotation, the rivers that are formed by the impeller stirring make progress or flow through the runner downwards.
Description
Technical field
The utility model relates to washing machine parts field, especially relates to a kind ofly being arranged on inner tank of washing machine bottom, can forming the impeller of the motion of water when rotating.
Background technology
Washing machine can be divided into stirring-type, drum-type and impeller-type three types usually.
The inner core central authorities of agitator type washing machine are provided with a stirring rod and several agitators, stirring rod and agitator can according to different clothing quality, degree of fouling, washings quality etc. or rotate back and forth soon or slowly within the scope of 360 °, and clothing is pulled rub back and forth in bosom, realize removing spot.Agitator type washing machine has outstanding clean ability, but in washing process, sound is comparatively large, can produce excessive rocking, and wear of clothes is also more serious.
Tumbling-box washing machine has the cylinder that the horizontal or tilting inner surface of level is provided with the rolling rib of multiple projection usually.During washing, water, washing agent and clothing are loaded in cylinder, and cylinder slowly runs under the drive of motor.Clothing is constantly promoted and is thrown in cylinder, then promotes and throw, does repeating motion.Just in this repeating motion process, clothing under the acting in conjunction of washing powder and water by washes clean.Tumbling-box washing machine have not damaging laundry, water loss few, washed the advantages such as rear clothing can not be wound.But on the other hand, tumbling-box washing machine has the noise be harmful to health, and consumes power is many, and be that fully clean its required time of clothing is relatively long.
Pulsator washing machine utilizes the frictional force produced between the current of motion and clothing to carry out washing clothes, and wherein, the motion of water is generally rotate generation by a discoidal impeller with positive and negative direction.Pulsator washing machine has outstanding clean ability, and required wash time is shorter.In addition, pulsator washing machine also have noise low, shake the advantages such as little, price is more cheap.
Fig. 1 shows a kind of partial sectional view of existing pulsator washing machine.See Fig. 1, be provided with one and in this urceolus, be provided with an inner core 2 rotationally for holding the cylindrical outer barrel (not shown) of water in casing 1, the sidewall of inner core 2 is provided with multiple hole 2a that water can be made to flow between inside and outside cylinder.An impeller 3 is arranged on the inside bottom of inner core 2, and this impeller 3 is connected with a driving shaft (not shown), and this driving shaft is driven by a motor (not shown).The upper surface of impeller 3 is provided with the washing rib 3a of multiple upwards projection radially from center.During work, the forward and reverse rotation of impeller, washings form the current of rotation under washing rib 3a stirs, and rub, thus reach the object of washing clothes between this current and clothing.The top of casing 1 is also provided with a top cover 4 and a case 5, and case 5 is used to open or close the opening that can be seen washing machine internal.In addition, the sidewall of inner core 2 is also provided with usually the filter screen 6 for filtering the flock formed in laundry processes.
Because pulsator washing machine relies on current to wash, therefore, current are most important to clean ability, and current stir generation by the impeller rotated, and limit by impeller shape and rotation mode thereof.
Existing impeller, see Fig. 2, Fig. 3, Fig. 4, comprises a circular impeller dish 1, and the upper surface of impeller dish 1 is provided with the washing rib 3 of upwards the middle part boss 2 of projection and several upwards projections, and washing rib 3 hoop is evenly distributed on around the boss 2 of middle part.The lower surface of impeller dish 1 is provided with multiple ring stiffener 4 and polylith impeller blade 5, and each impeller blade 5 is connected with the ring stiffener 4 of outermost, is provided with dowel (sign) between ring stiffener 4.Radius is minimum, be positioned at the ring stiffener 4 of inner side is provided with pulsator lining 7 for being connected with driving shaft of washing machine.The impeller blade 5 of existing impeller is all radially distribute straight in the middle part of impeller, and and horizontal plane.During laundry, impeller blade 5 is to surrounding exclusion washings, washings below impeller are moved upward through the flow-guiding channel be arranged on inside inner core, and spray to bottom inner core from the opening part of top, and the place such as the through hole 6 of portion of washing water on impeller dish 1 above impeller and the gap between impeller dish 1 periphery and inner core flows into below impeller, thus form one-way circulation current in vertical guide.No matter impeller is forward or rotates backward, and in this vertical guide, the direction of one-way circulation current can not change.These one-way circulation current are unfavorable for that solving clothing is wound around problem, and once clothing is wound around, not only clothing is difficult to by wash clean, and the heavy burden of whole washing machine can be serious eccentric, and mechanical loss increases greatly, and vibration and noise also increase thereupon; This adverse effect is especially obvious in the water smoking of automatic washing machine.
Thus, how to design a kind of agitation wheel for washing machine, by forward and reverse rotation, it can produce the current of specific modality, and effectively can reduce clothing and be wound around, be have technical problem to be solved.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of agitation wheel for washing machine, in laundry processes, by this impeller of rotating, can produce the current of specific modality, effectively can reduce clothing and be wound around.
The utility model is solve the technical scheme that its technical problem adopts to be: a kind of agitation wheel for washing machine, comprises a circular impeller dish, and the upper surface of described impeller dish is provided with the washing rib of upwards the middle part boss of projection and several upwards projections; The lower surface of described impeller dish is provided with multiple ring stiffener and polylith impeller blade, and each described impeller blade is all connected with the ring stiffener of outermost; Dowel is provided with between each described ring stiffener; Radius is minimum, be positioned at the described ring stiffener of inner side is provided with pulsator lining for being connected with driving shaft of washing machine; Described washing rib hoop is evenly distributed on around the boss of described middle part, and each washing rib is serpentine along described impeller dish radial direction; Described middle part boss is round table-like, and the side of round platform is provided with along the bottom surface radially protruding convex tendon identical with described washing rib quantity, and each described convex tendon is in smoothing junction with corresponding washing rib; The upper bottom surface of described middle part boss is provided with the uncovered cell to lower recess; The runner being communicated with impeller superjacent air space and underlying space is provided with in the boss of described middle part, described runner has upper shed and under shed, described upper shed is arranged on bottom surface or the side of described uncovered cell, and described under shed is arranged between adjacent two impeller blades, the outside of the ring stiffener of outermost; Described uncovered little indoor are removably provided with filter element; The shape of the impeller be made up of described impeller blade meets: when impeller rotates forward or backwards, is stirred and on the current direction formed or be downward through described runner by impeller.
Further, described impeller helically paddle.
Alternatively, described impeller can also be a kind of so preferred shape: described impeller blade is tabular, impeller blade and horizontal plane; The angle crossed between the radial alignment of impeller blade and outermost ring stiffener junction and described impeller blade is acute angle or right angle.Wherein, described impeller blade and horizontal plane, refer to that the table plane normal of flat impeller blade is positioned at horizontal plane.Cross the radial alignment of impeller blade and outermost ring stiffener junction, refer to be positioned at horizontal plane, crossing with impeller disk center line, cross impeller blade and the straight line of outermost ring stiffener in the junction of this horizontal plane.Cross the angle between the radial alignment of impeller blade and outermost ring stiffener junction and described impeller blade, refer to the angle between the radial alignment of impeller blade and outermost ring stiffener junction and the table plane of tabular impeller blade.
For the second preferable shape of described impeller, preferably, the angle crossed between the radial alignment of impeller blade and outermost ring stiffener junction and described impeller blade is 15 ° ~ 90 °.
Alternatively, described impeller can also be a kind of so preferred shape: described impeller blade is tabular, and the angle between impeller blade and horizontal plane is acute angle.Wherein, the angle between impeller blade and horizontal plane, refers to the angle between the table plane of tabular impeller blade and horizontal plane.
For the third preferable shape of described impeller, preferably, the angle between described impeller blade and horizontal plane is 15 ° ~ 75 °.
Further, described filter element comprises conducting element and filtration members; Described conducting element comprises a barrel-shaped water conservancy diversion main body, and the bucket wall of described barrel-shaped water conservancy diversion main body is provided with limbers, and the bottom surface of barrel-shaped water conservancy diversion main body is airtight plane, and the upper end of barrel-shaped water conservancy diversion main body is connected with a clamping rings one; Described filtration members is cylindrical, the face of cylinder offers multiple filter window, and in filter window described in each, all cover has a stocking shape screen pack; Described conducting element is connected by detachability between described clamping rings with described filtration members; Between described filtration members with described middle part boss, detachability is connected.
Further, described impeller dish is also provided with the through hole being communicated with impeller superjacent air space and underlying space, described through hole is located near impeller dish peripheral region.
Good effect of the present utility model is: one, the utility model impeller is when rotating forward or backwards, is stirred and on the current direction that formed or be downward through the runner be located in the boss of middle part by impeller.The direction of rotation of getting impeller when making current direction dirty mistake runner is forward, then when impeller reversely rotates, the washings below impeller are stirred by impeller and upwards flow through runner, and spray to impeller superjacent air space, this is conducive to clothing to be broken up, and reduces clothing and is wound around in washing process.Two, the washing rib of the utility model impeller is serpentine along impeller dish radial direction, and be provided with the convex tendon with washing rib smooth connection in the side of the middle part boss of truncated cone-shaped, convex tendon matches with the washing rib of serpentine, can make when impeller is along when reversely rotating, in the middle part of impeller dish, top produces ascending current, this ascending current can break up clothing further, reduces clothing and is wound around.Three, the utility model impeller is provided with filter element in its uncovered cell, is filtered the washings flowing through runner by filter element, can improve washing machine and clean ability.
Accompanying drawing explanation
Fig. 1 is a kind of cutaway drawing of existing pulsator washing machine.
Fig. 2 is a kind of front view of existing impeller.
Fig. 3 is the top view of impeller existing shown in Fig. 2.
Fig. 4 is the upward view of impeller existing shown in Fig. 2.
Fig. 5 is the stereogram from oblique upper viewing embodiment one gained.
Fig. 6 is the stereogram from oblique below viewing embodiment one gained.
Fig. 7 is the structural representation of the embodiment one after removing filter element.
Fig. 8 is the structural representation of filter element under disassembled form.
Fig. 9 is filter element structural representation in the assembled condition.
Figure 10 is the stereogram from oblique upper viewing embodiment two gained.
Figure 11 is the stereogram from oblique below viewing embodiment two gained.
Figure 12 is the upward view of embodiment two.
Figure 13 is the stereogram from oblique upper viewing embodiment three gained.
Figure 14 is the stereogram from oblique below viewing embodiment three gained.
Figure 15 is the upward view of embodiment three.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment one
As shown in Fig. 5, Fig. 6, Fig. 7, the present embodiment comprises a circular impeller dish 1, and the upper surface of impeller dish 1 is provided with the washing rib 3 of the upwards middle part boss 2 of a projection and six upwards projection.Six washing rib 3 hoops are evenly distributed on middle part boss 2 around, and each washing rib 3 is serpentine along impeller dish 1 radial direction.Middle part boss 2 is in round table-like, and the side of round platform is provided with along the bottom surface radially protruding convex tendon 11 identical with washing rib 3 quantity.Each convex tendon 11 is in smoothing junction with corresponding washing rib 3.The upper bottom surface of middle part boss 2 is provided with the uncovered cell to lower recess, and uncovered little indoor are removably provided with filter element 12.Be provided with the runner 8 being communicated with impeller superjacent air space and underlying space in the boss 2 of middle part, the center of middle part boss 2 is also provided with screw 7, and during installation, impeller is fixed on driving shaft of washing machine through screw 7 by the bolt of fixing impeller.Be provided with six runners 8 altogether in the boss 2 of middle part, each runner 8 all has a upper shed and a under shed, and its upper shed is located on the side of the uncovered cell above the boss 2 of middle part, and the upper shed hoop of six runners 8 is evenly distributed on screw 7 around.Impeller dish 1 is also provided with the through hole 6 being communicated with impeller superjacent air space and underlying space near its peripheral region.
The lower surface of impeller dish 1 is provided with three ring stiffeners 4 and six pieces of impeller blades 5, and each impeller blade 5 is all connected with the ring stiffener 4 of outermost, and the under shed of runner 8 is arranged between adjacent two impeller blades 5, the outside of the ring stiffener 4 of outermost.Dowel 9 is provided with between each ring stiffener 4.Radius is minimum, be positioned at the ring stiffener of inner side is provided with pulsator lining 10 for being connected with driving shaft of washing machine.
In the present embodiment, the impeller be made up of six pieces of impeller blades 5 helically paddle.The surface of each block impeller blade 5 threadingly can be scanned by line segment and be formed.
As shown in Figure 8, Figure 9, filter element 12 comprises conducting element 12-1 and filtration members 12-2.Conducting element 12-1 comprises a barrel-shaped water conservancy diversion main body, and the bucket wall of barrel-shaped water conservancy diversion main body is provided with limbers, and the bottom surface of barrel-shaped water conservancy diversion main body is airtight plane, and the upper end of barrel-shaped water conservancy diversion main body is connected with a clamping rings one.Filtration members 12-2 is cylindrical, the face of cylinder offers multiple filter window, and in each filter window, all cover has a stocking shape screen pack (not shown).Conducting element 12-1 is connected by detachability between clamping rings with filtration members 12-2; Between filtration members 12-2 with middle part boss 2, detachability is connected.
Embodiment two
As shown in Figure 10, Figure 11, Figure 12, the present embodiment comprises a circular impeller dish 1, and the upper surface of impeller dish 1 is provided with the washing rib 3 of the upwards middle part boss 2 of a projection and six upwards projection.Six washing rib 3 hoops are evenly distributed on middle part boss 2 around, and each washing rib 3 is serpentine along impeller dish 1 radial direction.Middle part boss 2 is in round table-like, and the side of round platform is provided with along the bottom surface radially protruding convex tendon 11 identical with washing rib 3 quantity.Each convex tendon 11 is in smoothing junction with corresponding washing rib 3.The upper bottom surface of middle part boss 2 is provided with the uncovered cell to lower recess, and uncovered little indoor are removably provided with filter element 12.Be provided with the runner 8 being communicated with impeller superjacent air space and underlying space in the boss 2 of middle part, the center of middle part boss 2 is also provided with screw, and during installation, impeller is fixed on driving shaft of washing machine through screw by the bolt of fixing impeller.Be provided with six runners 8 altogether in the boss 2 of middle part, each runner 8 all has a upper shed and a under shed, and its upper shed is located on the side of the uncovered cell above the boss 2 of middle part, and the upper shed hoop of six runners 8 is evenly distributed on around screw.Impeller dish 1 is also provided with the through hole 6 being communicated with impeller superjacent air space and underlying space near its peripheral region.
The lower surface of impeller dish 1 is provided with three ring stiffeners 4 and six pieces of impeller blades 5, and each impeller blade 5 is all connected with the ring stiffener 4 of outermost, and the under shed of runner 8 is arranged between adjacent two impeller blades 5, the outside of the ring stiffener 4 of outermost.Dowel 9 is provided with between each ring stiffener 4.Radius is minimum, be positioned at the ring stiffener of inner side is provided with pulsator lining 10 for being connected with driving shaft of washing machine.
In the present embodiment, impeller blade 5 is tabular, impeller blade 5 and horizontal plane.The angle crossed between the radial alignment of impeller blade 5 and outermost ring stiffener 4 junction and impeller blade 5 is acute angle or right angle.Particularly, in the present embodiment, the angle crossed between the radial alignment of impeller blade 5 and outermost ring stiffener 4 junction and impeller blade 5 is chosen as 70 °.
Embodiment three
As shown in Figure 13, Figure 14, Figure 15, the present embodiment comprises a circular impeller dish 1, and the upper surface of impeller dish 1 is provided with the washing rib 3 of the upwards middle part boss 2 of a projection and six upwards projection.Six washing rib 3 hoops are evenly distributed on middle part boss 2 around, and each washing rib 3 is serpentine along impeller dish 1 radial direction.Middle part boss 2 is in round table-like, and the side of round platform is provided with along the bottom surface radially protruding convex tendon 11 identical with washing rib 3 quantity.Each convex tendon 11 is in smoothing junction with corresponding washing rib 3.The upper bottom surface of middle part boss 2 is provided with the uncovered cell to lower recess, and uncovered little indoor are removably provided with filter element 12.Be provided with the runner 8 being communicated with impeller superjacent air space and underlying space in the boss 2 of middle part, the center of middle part boss 2 is also provided with screw, and during installation, impeller is fixed on driving shaft of washing machine through screw by the bolt of fixing impeller.Be provided with six runners 8 altogether in the boss 2 of middle part, each runner 8 all has a upper shed and a under shed, and its upper shed is located on the side of the uncovered cell above the boss 2 of middle part, and the upper shed hoop of six runners 8 is evenly distributed on around screw.Impeller dish 1 is also provided with the through hole 6 being communicated with impeller superjacent air space and underlying space near its peripheral region.
The lower surface of impeller dish 1 is provided with three ring stiffeners 4 and six pieces of impeller blades 5, and each impeller blade 5 is all connected with the ring stiffener 4 of outermost, and the under shed of runner 8 is arranged between adjacent two impeller blades 5, the outside of the ring stiffener 4 of outermost.Dowel 9 is provided with between each ring stiffener 4.Radius is minimum, be positioned at the ring stiffener of inner side is provided with pulsator lining 10 for being connected with driving shaft of washing machine.
In the present embodiment, impeller blade 5 is in tabular, and the angle between impeller blade 5 and horizontal plane is acute angle.Particularly, in the present embodiment, the angle between impeller blade 5 and horizontal plane is chosen as 30 °.
Below in conjunction with embodiment two, the principle that the utility model obtains its Advantageous Effects is described further.
Towards impeller viewing above impeller, getting and being rotated counterclockwise direction is forward.When impeller rotates forward, under the stirring of impeller, washings below impeller are clapped to surrounding, and move upward through the flow-guiding channel be arranged on inside inner tank of washing machine, spray to bottom inner core from the opening part of top, and the places such as the through hole 6 of the portion of washing water above impeller on impeller dish 1, runner 8 and the gap between impeller dish 1 periphery and inner core flow into below impeller.When impeller reversely rotates, on the one hand, the washings above impeller, under the stirring of washing rib 3 and convex tendon 11, form ascending current above the middle part of impeller dish 1; On the other hand, under the stirring of impeller, the washings below impeller gather to impeller central lower, and the washings gathered produce high pressure, and portion of washing water is sprayed to above impeller through runner 8.Ascending current and from the washings acting in conjunction that runner 8 upwards sprays, effectively can break up clothing, thus can reduce clothing and be wound around.In addition, the washings flowing through runner 8 are filtered unit 12 and filter in uncovered cell, and thus, washing machine is cleaned ability and got a promotion.
Claims (8)
1. an agitation wheel for washing machine, comprises a circular impeller dish, and the upper surface of described impeller dish is provided with the washing rib of upwards the middle part boss of projection and several upwards projections; The lower surface of described impeller dish is provided with multiple ring stiffener and polylith impeller blade, and each described impeller blade is all connected with the ring stiffener of outermost; Dowel is provided with between each described ring stiffener; Radius is minimum, be positioned at the described ring stiffener of inner side is provided with pulsator lining for being connected with driving shaft of washing machine; It is characterized in that, described washing rib hoop is evenly distributed on around the boss of described middle part, and each washing rib is serpentine along described impeller dish radial direction; Described middle part boss is round table-like, and the side of round platform is provided with along the bottom surface radially protruding convex tendon identical with described washing rib quantity, and each described convex tendon is in smoothing junction with corresponding washing rib; The upper bottom surface of described middle part boss is provided with the uncovered cell to lower recess; The runner being communicated with impeller superjacent air space and underlying space is provided with in the boss of described middle part, described runner has upper shed and under shed, described upper shed is arranged on bottom surface or the side of described uncovered cell, and described under shed is arranged between adjacent two impeller blades, the outside of the ring stiffener of outermost; Described uncovered little indoor are removably provided with filter element; The shape of the impeller be made up of described impeller blade meets: when impeller rotates forward or backwards, is stirred and on the current direction formed or be downward through described runner by impeller.
2. agitation wheel for washing machine according to claim 1, is characterized in that, described impeller helically paddle.
3. agitation wheel for washing machine according to claim 1, is characterized in that, described impeller blade is tabular, impeller blade and horizontal plane; The angle crossed between the radial alignment of impeller blade and outermost ring stiffener junction and described impeller blade is acute angle or right angle.
4. agitation wheel for washing machine according to claim 1, is characterized in that, described impeller blade is tabular, impeller blade and horizontal plane; The angle crossed between the radial alignment of impeller blade and outermost ring stiffener junction and described impeller blade is 15 ° ~ 90 °.
5. agitation wheel for washing machine according to claim 1, is characterized in that, described impeller blade is tabular, and the angle between impeller blade and horizontal plane is acute angle.
6. agitation wheel for washing machine according to claim 1, is characterized in that, described impeller blade is tabular, and the angle between impeller blade and horizontal plane is 15 ° ~ 75 °.
7. the agitation wheel for washing machine according to claim 1 or 2 or 3 or 4 or 5 or 6, it is characterized in that, described filter element comprises conducting element and filtration members; Described conducting element comprises a barrel-shaped water conservancy diversion main body, and the bucket wall of described barrel-shaped water conservancy diversion main body is provided with limbers, and the bottom surface of barrel-shaped water conservancy diversion main body is airtight plane, and the upper end of barrel-shaped water conservancy diversion main body is connected with a clamping rings one; Described filtration members is cylindrical, the face of cylinder offers multiple filter window, and in filter window described in each, all cover has a stocking shape screen pack; Described conducting element is connected by detachability between described clamping rings with described filtration members; Between described filtration members with described middle part boss, detachability is connected.
8. agitation wheel for washing machine according to claim 7, is characterized in that, described impeller dish is also provided with the through hole being communicated with impeller superjacent air space and underlying space, and described through hole is located near impeller dish peripheral region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520800860.3U CN205171190U (en) | 2015-10-18 | 2015-10-18 | Rotary impeller for washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520800860.3U CN205171190U (en) | 2015-10-18 | 2015-10-18 | Rotary impeller for washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205171190U true CN205171190U (en) | 2016-04-20 |
Family
ID=55735202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520800860.3U Expired - Fee Related CN205171190U (en) | 2015-10-18 | 2015-10-18 | Rotary impeller for washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205171190U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020248921A1 (en) * | 2019-06-11 | 2020-12-17 | Midea Group Co., Ltd. | Impeller for laundry washing machine |
-
2015
- 2015-10-18 CN CN201520800860.3U patent/CN205171190U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020248921A1 (en) * | 2019-06-11 | 2020-12-17 | Midea Group Co., Ltd. | Impeller for laundry washing machine |
| US11866865B2 (en) | 2019-06-11 | 2024-01-09 | Midea Group Co., Ltd. | Impeller for laundry washing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20201018 |