CN109717811B - Draining pump of washing equipment and washing equipment with draining pump - Google Patents
Draining pump of washing equipment and washing equipment with draining pump Download PDFInfo
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- CN109717811B CN109717811B CN201910023693.9A CN201910023693A CN109717811B CN 109717811 B CN109717811 B CN 109717811B CN 201910023693 A CN201910023693 A CN 201910023693A CN 109717811 B CN109717811 B CN 109717811B
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Abstract
The invention belongs to the field of washing equipment, and particularly relates to a draining pump of washing equipment and washing equipment with the draining pump. The draining pump of the washing equipment comprises a pump shell, a water inlet and a water outlet which are arranged on the pump shell, wherein the area close to the edge of the pump shell in the pump shell is a high-pressure area in the pump shell when the draining pump works, the pump shell is provided with a ventilating hole, and the ventilating hole is positioned between the center of the pump shell and the high-pressure area. After the washing, the drain pump starts, the inside impeller of drain pump rotates, the marginal direction motion to the pump case of liquid in the pump case, the regional gathering of the middle part of air to the pump case in the pump case simultaneously, then discharge through the bleeder vent, along with the discharge process of air, outside water gets into the pump case, make the water of pump case more and the air is less and less, along with the increase of the water yield in the pump case, the drainage ability promotes gradually, finally make delivery port pressure enough push away the check piece, thereby the drainage smoothly.
Description
Technical Field
The invention belongs to the field of washing equipment, and particularly relates to a draining pump of washing equipment and washing equipment with the draining pump.
Background
Household appliances such as dish washer, washing machine need carry out the drainage in the washing process and after the washing process finishes, in order to prevent drainage pipe siphon, generally can set up anti-siphon structure on drainage pipe, in order to avoid simultaneously preventing the water among the anti-siphon structure to flow back to household appliances, still need set up the uniflow controlling means behind the drain pump. Taking a dish washing machine as an example, normally, a check sheet is arranged between a drain pump and an anti-siphon structure of the dish washing machine, the drain pump utilizes high-pressure water flow to flush the check sheet at work to perform drainage operation, the drain pump stops working when drainage is finished, water in the anti-siphon structure flows back to press the check sheet, and sewage is prevented from flowing back to an inner cavity of the dish washing machine.
However, there is a problem in that: after general drainage, the water yield in the drain pump case is less, can have a certain amount of air, when the drain pump intake once more, if the air in the pump case can't be discharged, will hold back all the time in the pump case, if carry out the drainage operation when having more air in the pump case, can lead to drain pump delivery port pressure lower, can't break the check piece to cause unable drainage, arouse serious consequence.
There are generally two drainage methods for drainage pumps on the market today: one is to adjust the structure and the rotating speed of the drainage pump, a certain amount of gas can be held in the pump shell when water is fed, air is slowly discharged when water is discharged, but the outlet pressure of the pump shell is enough to open the check piece under the condition that gas exists, otherwise, water cannot be discharged, and the problems existing in the method are that the air discharge process is slow, and the drainage pressure and the flow are not high when gas exists; the other is that the pore is arranged at the top of the pump shell of the drainage pump, when the drainage pump enters water, along with the liquid level in the pump shell slowly rising, the air in the pump shell is discharged through the pore at the top, but when the drainage pump works, the water and the kitchen residue in the pump shell are ejected out through the pore and return to the inside of the dish washer (specifically, the inside of the water cup of the dish washer), so that the pressure in the pump shell is released to reduce the pressure of the water outlet, and the kitchen residue can block the pore.
Disclosure of Invention
The present invention has been made to solve at least one of the above-mentioned problems occurring in the prior art. Therefore, the invention provides a draining pump of washing equipment and the washing equipment with the draining pump.
The draining pump of the washing equipment comprises a pump shell, a water inlet and a water outlet, wherein the water inlet and the water outlet are arranged on the pump shell, the area, close to the edge of the pump shell, in the pump shell is a high-pressure area in the pump shell when the draining pump works, the pump shell is provided with a ventilating hole, and the ventilating hole is positioned between the center of the pump shell and the high-pressure area.
According to the drainage pump of the washing equipment, the air holes are not formed in the top of the pump shell, so that air in the upper area in the pump shell cannot be naturally discharged, air always exists in the pump shell in the whole washing process, after washing is finished, the drainage pump is started, the impeller in the drainage pump rotates, liquid in the pump shell moves towards the edge direction of the pump shell, meanwhile, the air in the pump shell is gathered towards the middle area of the pump shell and then is discharged through the air holes, external water enters the pump shell along with the air discharging process, so that the water discharging capacity of the pump shell is gradually improved, the pressure of the water outlet is enabled to be enough to push against the check piece, and water is smoothly discharged. In addition, because the air holes are not positioned in the high-pressure area in the pump shell, water in the pump shell cannot be ejected out through the air holes, and the pressure of the water outlet cannot be reduced.
In addition, the drain pump of the washing apparatus according to the embodiment of the present invention may further have the following additional technical features:
in some embodiments of the present invention, the vent hole is located within a range defined by a circle having a center at the center of the pump housing and a radius at 2/3R, where R is the radius of the pump housing.
In some embodiments of the invention, the air vent is located between the circle and the water inlet.
In some embodiments of the present invention, the water outlet is located at the high pressure region, and a blocking member for separating the water inlet and the air vent from the high pressure region is provided inside the pump case.
In some embodiments of the present invention, the blocking member is an annular rib structure surrounding the water inlet and the air vent.
In some embodiments of the invention, the drain pump further comprises an impeller, a gap between the blocking member and a vane of the impeller being no more than 3 mm.
In some embodiments of the invention, a check tab is provided within the outlet.
According to the washing device of the embodiment of the invention, the drainage pump of the washing device of any embodiment is provided.
According to the washing equipment provided by the embodiment of the invention, due to the adoption of the drainage pump of the washing equipment, the problem that the check piece cannot be jacked due to the existence of air in the pump shell is solved, and smooth drainage can be ensured.
In some embodiments of the invention, the washing device is a dishwasher or a washing machine.
In some embodiments of the present invention, the dishwasher includes a dishwasher body and a water cup disposed at a bottom of the dishwasher body, the pump case is fixed to the water cup, the water inlet is communicated with an inside of the water cup, and the airing hole is communicated with an inside of the water cup.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic view of a drain pump of a washing apparatus according to an embodiment of the present invention applied to a dishwasher;
FIG. 2 is a sectional view of a drain pump of the washing apparatus according to the embodiment of the present invention applied to a dishwasher;
fig. 3 is a schematic view of water flow inside a drain pump of the washing apparatus without the blocking member (arrows indicate water flow directions in the figure);
fig. 4 is a schematic view of water flow inside a drain pump of the washing apparatus provided with the blocking member (arrows indicate water flow directions in the figure).
The reference symbols in the drawings denote the following:
10: drain pump, 11: pump housing, 12: water inlet, 13: water outlet, 14: air holes and 15: blocking member, 16: impeller, 20: a water cup.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 1 and 2, the drain pump 10 of the washing apparatus according to the embodiment of the present invention includes a pump case 11, and a water inlet 12 and a water outlet 13 disposed on the pump case 11, wherein an area near an edge of the pump case 11 in the pump case 11 is a high pressure area in the pump case 11 when the drain pump 10 operates, and the pump case 11 is provided with a vent hole 14, and the vent hole 14 is located between a center of the pump case 11 and the high pressure area.
According to the drain pump 10 of the washing apparatus of the embodiment of the present invention, since the airing hole 14 is not provided at the top of the pump case 11, the air in the upper region of the pump case 11 cannot be naturally discharged, so that the air is always present in the pump case 11 during the entire washing process, when the washing is finished, the drain pump 10 is started, the impeller 16 inside the drain pump 10 rotates, the liquid inside the pump shell 11 moves towards the edge of the pump shell 11, meanwhile, the air inside the pump shell 11 gathers towards the middle area of the pump shell 11, and then discharged through the airing hole 14, with the discharge process of air, the external water enters the pump case 11, the water in the pump shell 11 is more and more, the air is less and less, the drainage capacity is gradually improved along with the increase of the water amount in the pump shell 11, and finally the pressure of the water outlet is enough to push against a check sheet (not shown in the figure), so that the water is drained smoothly, and the drainage capacity is enhanced. In addition, because the air holes 14 are not located in the high-pressure area in the pump shell 11, water in the pump shell 11 cannot be ejected through the air holes 14, and the pressure of the water outlet cannot be reduced. Further, when the drain pump 10 according to the embodiment of the present invention is applied to the dishwasher, the kitchen waste in the pump case 11 is not ejected through the airing holes 14, and thus, the airing holes 14 are not clogged.
In some embodiments, the vent 14 is located in a range defined by a circle with 2/3R as a radius, where R is the radius of the pump housing 11, and the range ensures that the vent 14 avoids a high pressure area in the pump housing 11 when the drain pump 10 operates, thereby ensuring that water in the pump housing 11 is not ejected through the vent 14.
Further, the ventilation hole 14 is located between a circle having a radius of 2/3R and the water inlet 12, which is centered at the center of the pump case 11, i.e., the ventilation hole 14 is preferably not provided on the water inlet 12, otherwise the water inlet process may affect the air discharge.
In some embodiments, the air vent 14 is disposed above the water inlet 12 to facilitate the venting of air during operation of the drain pump 10.
In some embodiments, the water outlet 13 is provided at a high pressure region, and a blocking member 15 for isolating the water inlet 12 and the air vent 14 from the high pressure region is provided at the inner side of the pump case 11. Because a certain gap is formed between the impeller 16 and the pump shell 11, a part of water in the high-pressure area flows back to the direction of the water inlet 12 (as shown in fig. 3), so that the part of the water cannot be discharged out of the pump shell 11 in time, and the drainage efficiency is reduced.
Further, the blocking member 15 has a ring-shaped rib structure surrounding the water inlet 12 and the air holes 14,
in some embodiments, the drain pump 10 further includes an impeller (not shown), and the clearance between the blocking member 15 and the vanes of the impeller is not more than 3mm, so that the blocking member 15 is close enough to the vanes to achieve better isolation without interfering with the vanes.
In some embodiments, the check tab (not shown) is provided within the outlet 13.
In some embodiments, the water outlet 13 is provided at a tangential position at the lower end of the pump housing 11, and may be provided at an upper end or a middle position of the pump housing 11.
According to the washing apparatus of the embodiment of the present invention, the drain pump 10 of the washing apparatus of any one of the above embodiments is provided.
According to the washing equipment of the embodiment of the invention, as the drainage pump 10 of the washing equipment is adopted, the problem that the check sheet cannot be jacked due to the air in the pump shell 11 is solved, and smooth drainage can be ensured.
In some embodiments, the washing apparatus is a dishwasher or a washing machine.
Further, when the washing apparatus is a dishwasher, the dishwasher includes a dishwasher body and a cup 20 provided at the bottom of the dishwasher body, the pump case 11 is fixed to the cup 20, and the water inlet 12 communicates with the inside of the cup 20.
In some embodiments, the vent 14 communicates with the interior of the water cup 20, and the drain pump 10 operates to vent air within the pump housing 11 to the water cup 20.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (11)
1. The draining pump of the washing equipment is characterized by comprising a pump shell, a water inlet and a water outlet, wherein the water inlet and the water outlet are arranged on the pump shell, the area, close to the edge of the pump shell, in the pump shell is a high-pressure area in the pump shell when the draining pump works, the pump shell is provided with a ventilating hole, the ventilating hole is used for enabling air in the pump shell to be discharged out of the pump shell in the running process of the draining pump, and the ventilating hole is positioned between the center of the pump shell and the high-pressure area.
2. The drain pump of claim 1, wherein the vent hole is located within a range defined by a circle having a radius of 2R/3 and a center of the pump case, wherein R is a radius of the pump case.
3. A drain pump of a washing apparatus according to claim 2, wherein the airing hole is located between the circle and the water inlet.
4. A drain pump of a washing apparatus according to claim 2 or 3, wherein said water outlet is located at said high pressure zone, and a blocking member for blocking said water inlet and said air vent from said high pressure zone is provided at an inner side of said pump case.
5. A drain pump of a washing apparatus according to claim 4, further comprising an impeller, wherein a gap between the blocking member and a vane of the impeller is not more than 3 mm.
6. The drain pump of washing apparatus as claimed in claim 4, wherein the blocking member is an annular rib structure surrounding the water inlet and the air vent.
7. A drain pump of a washing apparatus according to claim 6, further comprising an impeller, wherein a gap between the blocking member and a vane of the impeller is not more than 3 mm.
8. A drain pump of a washing apparatus according to claim 4, wherein a check piece is provided in the water outlet.
9. Washing apparatus, characterized by a drain pump of a washing apparatus according to any of claims 1 to 8.
10. A washing device according to claim 9, characterized in that the washing device is a dishwasher or a washing machine.
11. The washing apparatus as claimed in claim 10, wherein the dishwasher includes a dishwasher body and a cup provided at a bottom of the dishwasher body, the pump housing is fixed to the cup, the water inlet is communicated with an inside of the cup, and the airing hole is communicated with an inside of the cup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910023693.9A CN109717811B (en) | 2019-01-10 | 2019-01-10 | Draining pump of washing equipment and washing equipment with draining pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910023693.9A CN109717811B (en) | 2019-01-10 | 2019-01-10 | Draining pump of washing equipment and washing equipment with draining pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109717811A CN109717811A (en) | 2019-05-07 |
| CN109717811B true CN109717811B (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910023693.9A Active CN109717811B (en) | 2019-01-10 | 2019-01-10 | Draining pump of washing equipment and washing equipment with draining pump |
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Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| IT222167Z2 (en) * | 1990-10-02 | 1995-01-24 | Zanussi Elettrodomestici | DISHWASHER WITH CENTRIFUGAL CIRCULATION PUMP |
| DE9406463U1 (en) * | 1994-04-19 | 1994-06-16 | Bosch-Siemens Hausgeräte GmbH, 81669 München | Venting device for non-self-priming drain pumps in dishwashers |
| DE102004039436B4 (en) * | 2004-08-13 | 2008-08-28 | BSH Bosch und Siemens Hausgeräte GmbH | Device for mounting a drain pump |
| CN101070852A (en) * | 2006-05-12 | 2007-11-14 | 美的集团有限公司 | Draining pump of dish washer |
| CN201189152Y (en) * | 2008-04-14 | 2009-02-04 | 美的集团有限公司 | Drainage system of dish washing machine |
| CN201279125Y (en) * | 2008-10-15 | 2009-07-29 | 美的集团有限公司 | Water cup assembly of dish washing machine |
| CN201582211U (en) * | 2009-11-17 | 2010-09-15 | 宁波星成电子有限公司 | Semi-submerged type centrifugal pump casing |
| US8834647B2 (en) * | 2011-08-05 | 2014-09-16 | General Electric Company | Manual removable filter system for a dishwasher |
| CN203532273U (en) * | 2013-11-11 | 2014-04-09 | 常州雷利电机科技有限公司 | Low-noise draining pump and filtering screen |
| CN104279167B (en) * | 2014-10-23 | 2017-03-22 | 佛山市顺德区美的洗涤电器制造有限公司 | Motor pump and washing electric appliance with motor pump |
| CN205559299U (en) * | 2016-03-23 | 2016-09-07 | 江门市地尔汉宇电器股份有限公司 | Can reduce drain pump of tired gas of drainage initial stage |
| CN106762697B (en) * | 2016-12-20 | 2023-03-24 | 汉宇集团股份有限公司 | Alternating current permanent magnet synchronous water pump capable of reducing exhaust noise |
| CN206830493U (en) * | 2017-04-08 | 2018-01-02 | 中山市瑞吉浦电气有限公司 | Brushless direct-current draining pump |
| CN107100854B (en) * | 2017-05-10 | 2018-12-25 | 江苏大学 | A kind of high-efficient low-noise drainage pump of washing machine |
| CN108331764A (en) * | 2018-03-30 | 2018-07-27 | 登封市绿奥农林科技有限公司 | A kind of agricultural centrifugal pump |
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2019
- 2019-01-10 CN CN201910023693.9A patent/CN109717811B/en active Active
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Effective date of registration: 20221025 Address after: 241000 west side of 3 / F, No.5 office building, new energy and new materials gathering area, Fuzhou Road, Jiangbei District, Wuhu City, Anhui Province Patentee after: Wuhu Midea intelligent kitchen electricity Manufacturing Co.,Ltd. Address before: No.20 Gangqian Road, industrial park, Beijiao Town, Shunde District, Foshan City, Guangdong Province Patentee before: FOSHAN SHUNDE MIDEA WASHING APPLIANCES MANUFACTURING Co.,Ltd. |