WO2019010850A1 - Dishwasher washing pump and dishwasher - Google Patents

Dishwasher washing pump and dishwasher Download PDF

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Publication number
WO2019010850A1
WO2019010850A1 PCT/CN2017/105501 CN2017105501W WO2019010850A1 WO 2019010850 A1 WO2019010850 A1 WO 2019010850A1 CN 2017105501 W CN2017105501 W CN 2017105501W WO 2019010850 A1 WO2019010850 A1 WO 2019010850A1
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WO
WIPO (PCT)
Prior art keywords
water
dishwasher
flow
pump
pump casing
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PCT/CN2017/105501
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French (fr)
Chinese (zh)
Inventor
徐伟
董媛媛
杨林
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青岛海尔洗碗机有限公司
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Publication of WO2019010850A1 publication Critical patent/WO2019010850A1/en

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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/42Details
    • A47L15/4214Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4225Arrangements or adaption of recirculation or discharge pumps
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/14Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/42Details

Definitions

  • the invention belongs to the field of kitchen equipment, in particular to a dishwasher washing pump and a dishwasher.
  • the dishwasher is a device that automatically cleans dishes, chopsticks, plates, dishes, knives, forks, etc., which can reduce labor intensity, improve work efficiency, and improve hygiene.
  • the water used in the dishwasher washing cycle is circulating water, and the sink of the dishwasher is fitted with the bottom of the tank as a container for storing circulating water.
  • the circulating water flows into the washing pump from the bottom of the sink, and is sprayed by the washing pump to the shower to wash the dishes, which flows down from the inner surface of the tableware and the inner tank and flows back to the sink.
  • the washing pump needs enough power, and the head and water pressure are sufficient to spray the water to the desired position to achieve the desired washing effect.
  • partial pressure loss refers to the pressure loss caused by the local resistance of the liquid flowing through the valve port, the elbow, and the change of the flow cross section.
  • the cause of partial pressure loss when the liquid flows through the local device, it forms a dead water zone or a vortex zone. The liquid does not participate in the main flow in this zone, but continuously swirls, accelerates the liquid friction or causes the particle collision, and generates local energy loss; When the liquid flows through the local device, the magnitude and direction of the flow rate change abruptly, and the velocity distribution law on each cross section also changes constantly, causing additional friction and consuming energy.
  • the cause of the partial pressure loss is the energy loss caused by the "dead water zone” or the "vortex zone”. Therefore, it is necessary to provide a corresponding device to avoid the above-mentioned energy loss zone of the washing water at the washing pump, thereby reducing the pressure caused thereby. Loss, thereby increasing the efficiency of the washing pump.
  • the present invention has been made in view of the above.
  • the technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide a dishwasher washing pump and a dishwasher, which eliminate energy loss caused by "dead water zone” or “vortex zone” in the washing pump, Improve the working efficiency of the washing pump.
  • a dishwasher washing pump comprising a spray arm, the washing pump comprising a pump casing having an inner cavity, the pump casing having an opening communicating with the spray arm, the inside of the pump casing a flow guiding portion is disposed in the cavity, and a part of the structure of the guiding portion is located The opening is within the projection of the inner cavity, and the flow guiding portion is configured to guide the water flow in the pump casing to change the moving direction, break up the vortex, and reduce the partial pressure loss of the water flow.
  • the flow guiding portion is a water guiding rib protruding from an inner surface of the pump casing
  • the water guiding rib is integrally formed on an inner wall of the pump casing.
  • one end of the water guiding rib is located at the beginning of the water flow vortex in the pump casing, and is tangential to the water flow vortex.
  • the other end of the water guiding rib extends along the curve in the direction of the water flow in the pump casing toward the side wall of the pump casing, and the curve is a water guiding rib curve.
  • the water guiding curve of the same strip includes curves of different radii of curvature
  • the radius of curvature is greater than a radius of curvature of the pump casing.
  • the number of openings is plural, and the number/length of the water guiding ribs corresponding to the different openings varies according to the intensity of the water flow at the inner cavity where the water guiding rib is located;
  • the opening corresponds to a plurality of water guiding ribs
  • the plurality of water guiding ribs do not intersect each other.
  • the height of the water guiding rib is smaller than the height of the cavity.
  • the flow guiding portion is a cylindrical water guiding column protruding from the inner surface of the pump casing and closely adhering to the surface;
  • the water guiding column height is smaller than the height of the cavity; and the water flow is in a vortex in the inner cavity;
  • the number/height/thickness of the water guiding column varies according to the intensity of the water flow at the inner cavity where the water guiding column is located.
  • the flow guiding portion is a strip-shaped guide groove having a curved curve which is recessed on an inner surface of the pump casing;
  • one end of the flow guiding trough is located at the beginning of the water flow vortex in the pump casing and is tangential to the water flow vortex there.
  • a dishwasher using the dishwasher washing pump of any of the above characterized in that the washing pump casing of the dishwasher has the flow guiding portion for eliminating a swirl of water flow in the washing pump.
  • the present invention has the following advantageous effects compared with the prior art.
  • the dishwasher washing pump and the dishwasher of the present invention guide the water flow in the pump casing to change the moving direction and break up the vortex by the flow guiding portion provided in the inner cavity of the washing pump casing, thereby reducing the water flow. Partial pressure loss improves the working efficiency of the washing pump.
  • One of the flow guiding portions of the present invention is a water guiding rib protruding from the inner surface of the pump casing and having one end located inside the pump casing The beginning of the water vortex, and tangential to the water flow vortex, and the curve of the appropriate radius of curvature in the direction of its extension, so that when the water rib breaks the vortex and eliminates the "dead water zone", The blockage of the water flow and the energy loss caused by the flow are minimized.
  • the invention is also well suited for use in a dishwasher that drives a plurality of spray arms through a wash pump.
  • the portion of the pump casing that is in communication with the lower portion of each of the spray arms is partially resisted due to a change in the bend or flow cross section, causing local pressure loss.
  • the water guiding rib is arranged at the opening of each pump casing and the spray arm, and the number/length of the water guiding ribs at each opening is increased or decreased according to the change of the water flow intensity and the special
  • the design fully considers the requirements of each area that is prone to local pressure loss, and balances the overall requirements of the dishwasher, greatly improving the efficiency of the entire washing pump.
  • due to the shape, quantity and spatial distribution of the water guiding ribs the factors are optimized accordingly, and the pressure loss caused by the obstruction of the whole guiding device itself is minimized.
  • the invention further designs an implementation form of a plurality of water guiding portions such as a water guiding column or a water guiding trough, and can individually select different washing pumps to maximize the utilization of the water guiding unit after the combination of the diversion portion and the specific pump casing.
  • the effect is that the washing pump is more efficient in water spraying, and the washing effect of the dishwasher is better and the water saving is more.
  • the flow guiding portion eliminates eddy currents and turbulence, the working noise of the washing pump during operation is also greatly reduced.
  • Figure 1 is a schematic view of a pump casing of a dishwasher washing pump and a dishwasher of the present invention
  • FIG. 2 is a schematic view showing the appearance of a pump casing of a dishwasher washing pump and a dishwasher according to the present invention
  • connection In the description of the present invention, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.
  • the present invention discloses a dishwasher washing pump and a dishwasher, the dishwasher comprising a spray arm, the washing pump comprising a pump casing 2 having a cavity 3, the pump An opening is opened in the shell 2 to communicate with the spray arm, and a flow guiding portion is disposed in the inner cavity 3 of the pump casing 2, and a partial structure of the flow guiding portion is located at a projection of the opening in the inner cavity 3.
  • the flow guiding portion is configured to guide the water flow in the pump casing 2 to change the moving direction, break up the vortex, and reduce the partial pressure loss of the water flow.
  • the invention eliminates the energy loss caused by the "dead water zone" or "vortex zone” in the wash pump, thus improving the working efficiency of the wash pump.
  • a dishwasher washing pump is disclosed in this embodiment.
  • the washing pump is installed in the dishwasher and communicates with the spray arm of the dishwasher to provide high pressure washing water for the spray arm, so that the spray arm rotates rapidly under the reaction force of the sprayed washing water.
  • high-pressure washing water is sprayed onto the tableware to wash the dishwasher.
  • the washing effect of the dishwasher is directly related to the working efficiency of the washing pump, that is, the washing water pressure provided by the washing pump.
  • partial pressure loss refers to the pressure loss caused by the local resistance of the liquid flowing through the valve port, the elbow, and the change of the flow cross section.
  • the cause of partial pressure loss when the liquid flows through the local device, it forms a dead water zone or a vortex zone. The liquid does not participate in the main flow in this zone, but continuously swirls, accelerates the liquid friction or causes the particle collision, and generates local energy loss; When the local device flows through, the magnitude and direction of the flow rate change abruptly, and the velocity distribution law on each cross section also changes constantly, causing additional friction and consuming energy.
  • the opening on the dishwasher pump casing that communicates with the spray arm is most likely to cause the above partial pressure loss due to the sharply smaller cross-sectional area of the water flow here and the radius of curvature of the inner wall of the pump casing is too small.
  • the present invention provides corresponding flow guiding portions for these regions to eliminate the vortex region or the dead water region.
  • the present invention is provided with a flow guiding portion in the inner cavity 3 of the pump casing 2, a partial structure of the flow guiding portion is located in the projection of the opening in the inner cavity 3, and the flow guiding portion is used.
  • the water flow in the pump casing is changed to change the direction of motion, and the vortex is scattered to reduce the partial pressure loss of the water flow.
  • the flow guiding portion in this embodiment is a water guiding rib protruding from the inner surface of the pump casing; specifically, that is, the first guiding corresponding to the first opening 6 in FIGS. 1 and 2, respectively.
  • the rib 1, and the second water guiding rib 5 corresponding to the second opening 7.
  • the water guiding rib is an elongated water guiding rib which is closely adhered to the inner wall as a whole, and is integrally formed on the inner wall of the pump casing 2.
  • the number of the spray arms can be increased or decreased, and the water guiding ribs as described in the embodiment are disposed in the inner cavity 3 of the corresponding lower opening, which will not be described herein.
  • one ends of the first water guiding rib 1 and the second water guiding rib 5 are located at the beginning of the water flow vortex in the pump casing, and are tangential to the water flow vortex at that place; One end extends along the curve in the direction of the water flow in the pump casing toward the side wall of the pump casing, and the curve is a water guiding curve.
  • the first water guiding rib 1 comprises two water guiding ribs, and respectively forms a starting point of the water flow vortex from the first opening 6 in the pump casing, and extends in a curve direction toward the sidewall of the pump casing at the first opening 6.
  • the way to extend and eventually intersect on the side wall of the pump casing; and the second water guiding rib 5 includes only one water guiding rib, which is the starting point of the water flow vortex from the second opening 7 in the pump casing, to the second
  • the direction of the side wall of the pump casing at the opening 7 extends in a curved manner. Due to the direction of the water flow at the second opening 7, as shown in Fig. 1, the second water guiding rib 5 does not intersect the side wall.
  • the first water guiding rib 1 and the second water guiding rib 5 both extend along the curve toward the water pump, and the water guiding rib curves all include curves of different radii of curvature, and the radius of curvature is a value calculated according to a simulation experiment of the water flow and a fluid calculation.
  • the radius of curvature is larger than the radius of curvature of the pump casing.
  • the invention is applicable to a plurality of spray arms, the pump casing opening is a plurality of washing pumps, and the number/length of the water guiding ribs corresponding to different pump casing openings is different according to the water flow intensity at the inner cavity of the water guiding rib. Variety.
  • the dishwasher of this embodiment uses a water pump and simultaneously supplies water to the two spray arms.
  • the two spray arms are respectively in communication with the first opening 6 and the second opening 7, and the lower portions of the first opening 6 and the second opening 7 are simultaneously communicated with the pump wheel of the water pump through the water channel 4.
  • the first opening 6 in this embodiment is closer to the pump wheel of the water pump, and the water flow intensity here is greater than that of the second opening 7.
  • the vortex water flow intensity at the first opening 6 is greater, and the corresponding partial pressure loss is also greater, so the first water guiding rib 1 needs to be composed of two water guiding ribs, and the second guiding The ribs 5 only need a water guiding rib.
  • the length of the first water guiding rib 1 is also longer than that of the second water guiding rib 5
  • the length is long, because only in this way is it possible to achieve a better effect of eliminating local pressure loss at the first opening 6 having a greater strength. Since the second opening 7 is far away from the pump wheel, the water flow pressure is reduced after the water flow passes through the water channel 4, and the vortex and turbulence are reduced. Therefore, in order to enable the water spray and washing of the two spray arms Balancing, compared with the first opening 6, the second opening 7 is to minimize the pressure loss caused by the diversion itself, and the requirement for eliminating the vortex and turbulence is much lower than that of the first opening 6. Therefore, there is only one second water guiding rib 5 at the second opening 7, and the length is also shorter than the first water guiding rib 1.
  • a first water guiding rib 1 composed of a plurality of water guiding ribs is correspondingly arranged at the first opening 6 , and the plurality of water guiding bodies are reduced in order to minimize the pressure loss caused by the guiding current itself.
  • the ribs cannot intersect each other.
  • each of the water guiding ribs in the first water guiding rib 1 faces away from each other in a direction extending toward the side wall of the pump casing.
  • the height of the water guiding rib in the embodiment is smaller than the height of the inner cavity 3, so that the bottom water flow which eliminates the vortex at the bottom can flow in the upper part of the water guiding rib, further reducing the water flow pressure loss caused by the water guiding rib itself.
  • the flow guiding portion in the embodiment 2 is a cylindrical water guiding column that protrudes from the inner surface of the pump casing and closely adheres to the surface. Similar to Embodiment 1, the water guiding column height is less than the height of the cavity; and the water flow creates a vortex within the inner cavity.
  • the function of the water guiding column is similar to that of the above-mentioned water guiding rib, which changes the traveling direction of the original water flow, breaks up the vortex water flow, eliminates the vortex area and the dead water area, thereby reducing the partial pressure loss of the washing pump.
  • the number and height of the water guiding columns of Embodiment 2 and the thickness vary depending on the intensity of the water flow at the inner cavity where the water guiding column is located. Thereby the effective power of the washing pump is more effectively ensured and the water flow at different outlets is more balanced. For example, a water guide column with more, and or higher, and or thicker at a position where the water flow intensity is greater is required to achieve the technical requirements.
  • the flow guiding portion in the embodiment 3 is a strip-shaped guide groove having a curved curve which is recessed on the inner surface of the pump casing; One end of the diversion trough is located at the beginning of the water vortex in the pump casing and is tangential to the water flow vortex there.
  • the length, depth and number of the flow guiding groove are also related to the intensity of the vortex water flow at the position. When the vortex water flow intensity is large, the guiding groove here should be selected in length. Longer, and or deeper, and or a larger number of diversion channels.
  • the flow guiding portion used in the embodiment 4 is not a water guiding rib protruding from the inner surface of the pump casing, but a semi-suspended water guiding water fixed by the fixing device and the inner wall of the pump casing. Partition.
  • the water guiding partition of the present embodiment is different from the water guiding rib of the first embodiment in that the bottom of the water guiding partition is not closely attached to the inner surface of the pump casing, but is suspended.
  • the water guiding partition of the embodiment is designed to allow water to flow freely from the top and bottom of the water guiding partition, but the middle portion of the water flow is still deflected by the water guiding partition, thereby eliminating the swirl of the water flow. Partial pressure loss caused.
  • the embodiment discloses a dishwasher using the dishwasher washing pump according to any of the above embodiments, wherein the washing pump casing of the dishwasher has the above-mentioned embodiment for eliminating the washing pump.
  • a water flow vortex deflector that is an efficient dishwasher that eliminates partial pressure loss within the dishwasher wash pump.

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  • Water Supply & Treatment (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Disclosed are a dishwasher washing pump and a dishwasher. The dishwasher comprises a spray arm. The washing pump comprises a pump housing (2) having an inner cavity, wherein openings (6, 7) are provided on the pump housing (2) to communicate with the spray arm; flow guide portions (1, 5) are arranged inside the inner cavity of the pump housing (2); some of the structures of the flow guide portions (1, 5) are located in projections of the openings (6, 7) in the inner cavity (3); and the flow guide portions (1, 5) are used for guiding a water flow inside the pump housing (2) to change a movement direction so as to break up a vortex and reduce a local pressure loss of the water flow, thereby eliminating an energy loss caused by a "dead water zone" or "vortex zone" in the washing pump, and improving the working efficiency of the washing pump.

Description

一种洗碗机洗涤泵及洗碗机Dishwasher washing pump and dishwasher 技术领域Technical field
本发明属于厨房设备领域,具体地说,涉及一种洗碗机洗涤泵及洗碗机。The invention belongs to the field of kitchen equipment, in particular to a dishwasher washing pump and a dishwasher.
背景技术Background technique
随着生活水平的提高,人们对生活品质要求越来越高,从而对产品的质量、性能、使用的人性化、操作的智能化等各方面的要求也越来越高。洗碗机作为一款优秀的产品也逐步进入人们的生活中。洗碗机是自动清洗碗、筷、盘、碟、刀、叉等餐具的设备,能够减轻劳动强度,提高工作效率,增进清洁卫生。洗碗机洗涤周期中所用的水为循环水,洗碗机的水槽配合内胆底部作为储存循环水的容器。在洗碗机的洗涤过程中,循环水由水槽底部流进洗涤泵,再由洗涤泵喷射到喷淋器以洗涤餐具,该循环水从餐具及内胆内壁面流下来并流回水槽。通常洗涤泵需要足够的功率,扬程和水压力足够,才能将水流喷射到预期的位置,达到理想的洗涤效果。With the improvement of living standards, people's requirements for quality of life are getting higher and higher, so that the requirements for quality, performance, humanization of use, and intelligent operation are becoming higher and higher. As an excellent product, the dishwasher has gradually entered people's lives. The dishwasher is a device that automatically cleans dishes, chopsticks, plates, dishes, knives, forks, etc., which can reduce labor intensity, improve work efficiency, and improve hygiene. The water used in the dishwasher washing cycle is circulating water, and the sink of the dishwasher is fitted with the bottom of the tank as a container for storing circulating water. During the washing process of the dishwasher, the circulating water flows into the washing pump from the bottom of the sink, and is sprayed by the washing pump to the shower to wash the dishes, which flows down from the inner surface of the tableware and the inner tank and flows back to the sink. Usually the washing pump needs enough power, and the head and water pressure are sufficient to spray the water to the desired position to achieve the desired washing effect.
然而,在洗碗机的实际工作中,经常会在洗涤泵处造成局部压力损失,严重影响洗涤泵的有用输出功率。所谓的局部压力损失是指:液体流经如阀口、弯管、通流截面变化等局部阻力引起的压力损失。局部压力损失产生的原因:液体流过局部装置时形成死水区或涡旋区,液体在此区域并不参加主流动,而是不断的打旋,加速液体摩擦或造成质点碰撞,产生局部能量损失;液体流过局部装置时流速的大小和方向发生急剧变化,各截面上的速度分布规律也不断变化,引起附加摩擦而消耗能量。可见局部压力损失造成的原因是“死水区”或者“涡旋区”造成的能量损失,因此需要设置相应的装置避免洗涤泵的处的洗涤水出现上述的能量损失区域,减少因此而造成的压力损失,从而提高洗涤泵的工作效率。However, in the actual operation of the dishwasher, local pressure loss is often caused at the washing pump, which seriously affects the useful output power of the washing pump. The so-called partial pressure loss refers to the pressure loss caused by the local resistance of the liquid flowing through the valve port, the elbow, and the change of the flow cross section. The cause of partial pressure loss: when the liquid flows through the local device, it forms a dead water zone or a vortex zone. The liquid does not participate in the main flow in this zone, but continuously swirls, accelerates the liquid friction or causes the particle collision, and generates local energy loss; When the liquid flows through the local device, the magnitude and direction of the flow rate change abruptly, and the velocity distribution law on each cross section also changes constantly, causing additional friction and consuming energy. It can be seen that the cause of the partial pressure loss is the energy loss caused by the "dead water zone" or the "vortex zone". Therefore, it is necessary to provide a corresponding device to avoid the above-mentioned energy loss zone of the washing water at the washing pump, thereby reducing the pressure caused thereby. Loss, thereby increasing the efficiency of the washing pump.
有鉴于此特提出本发明。The present invention has been made in view of the above.
发明内容Summary of the invention
本发明要解决的技术问题在于克服现有技术的不足,提供一种洗碗机洗涤泵及洗碗机,自消除了洗涤泵中“死水区”或者“涡旋区”造成的能量损失,因此提高了洗涤泵的工作效率。The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide a dishwasher washing pump and a dishwasher, which eliminate energy loss caused by "dead water zone" or "vortex zone" in the washing pump, Improve the working efficiency of the washing pump.
为了实现该目的,本发明采用如下技术方案:In order to achieve the object, the present invention adopts the following technical solutions:
一种洗碗机洗涤泵,洗碗机包括喷淋臂,所述洗涤泵包括具有内腔的泵壳,所述泵壳上开有开口与所述喷淋臂相通,所述泵壳的内腔内设置有导流部,所述导流部的部分结构位于 所述开口在所述内腔的投影内,所述导流部用于引导泵壳内水流改变运动方向,打散漩涡,减少水流的局部压力损失。A dishwasher washing pump, the dishwasher comprising a spray arm, the washing pump comprising a pump casing having an inner cavity, the pump casing having an opening communicating with the spray arm, the inside of the pump casing a flow guiding portion is disposed in the cavity, and a part of the structure of the guiding portion is located The opening is within the projection of the inner cavity, and the flow guiding portion is configured to guide the water flow in the pump casing to change the moving direction, break up the vortex, and reduce the partial pressure loss of the water flow.
进一步地,所述导流部是凸出于所述泵壳的内表面的导水筋;Further, the flow guiding portion is a water guiding rib protruding from an inner surface of the pump casing;
优选地,所述导水筋一体成型于所述泵壳的内壁上。Preferably, the water guiding rib is integrally formed on an inner wall of the pump casing.
进一步地,所述导水筋的一端位于泵壳内水流漩涡的起始处,且与该处水流漩涡相切。Further, one end of the water guiding rib is located at the beginning of the water flow vortex in the pump casing, and is tangential to the water flow vortex.
进一步地,所述导水筋的另一端按曲线沿泵壳内水流的方向向泵壳侧壁延伸,所述曲线是导水筋曲线。Further, the other end of the water guiding rib extends along the curve in the direction of the water flow in the pump casing toward the side wall of the pump casing, and the curve is a water guiding rib curve.
进一步地,同一条所述的导水筋曲线包括不同曲率半径的曲线;Further, the water guiding curve of the same strip includes curves of different radii of curvature;
优选的,所述曲率半径大于泵壳的曲率半径。Preferably, the radius of curvature is greater than a radius of curvature of the pump casing.
进一步地,所述开口为多个,并且不同开口所对应的导水筋的数量/长度,根据所述导水筋所在内腔处的水流强度不同而变化;Further, the number of openings is plural, and the number/length of the water guiding ribs corresponding to the different openings varies according to the intensity of the water flow at the inner cavity where the water guiding rib is located;
优选地,当所述开口对应多条导水筋时,所述多条导水筋相互不相交。Preferably, when the opening corresponds to a plurality of water guiding ribs, the plurality of water guiding ribs do not intersect each other.
进一步地,所述导水筋的高度小于所述容腔的高度。Further, the height of the water guiding rib is smaller than the height of the cavity.
进一步地,所述导流部是凸出于所述泵壳的内表面的,与所述表面紧密贴合的柱形的导水柱;Further, the flow guiding portion is a cylindrical water guiding column protruding from the inner surface of the pump casing and closely adhering to the surface;
优选地,所述导水柱高度小于所述容腔的高度;并位于水流在所述内腔内产生漩涡处;Preferably, the water guiding column height is smaller than the height of the cavity; and the water flow is in a vortex in the inner cavity;
优选地,所述导水柱的数量/高度/粗细,根据导水柱所在内腔处的水流强度不同而变化。Preferably, the number/height/thickness of the water guiding column varies according to the intensity of the water flow at the inner cavity where the water guiding column is located.
进一步地,所述导流部是下凹于所述泵壳的内表面的,具有弯曲曲线的条状导流槽;Further, the flow guiding portion is a strip-shaped guide groove having a curved curve which is recessed on an inner surface of the pump casing;
优选地,所述导流槽的一端位于泵壳内水流漩涡的起始处,且与该处水流漩涡相切。Preferably, one end of the flow guiding trough is located at the beginning of the water flow vortex in the pump casing and is tangential to the water flow vortex there.
一种采用上述任一所述的洗碗机洗涤泵的洗碗机,其特征在于,所述洗碗机的洗涤泵泵壳上具有用于消除洗涤泵内水流漩涡的所述导流部。A dishwasher using the dishwasher washing pump of any of the above, characterized in that the washing pump casing of the dishwasher has the flow guiding portion for eliminating a swirl of water flow in the washing pump.
采用上述技术方案后,本发明与现有技术相比具有以下有益效果。After adopting the above technical solution, the present invention has the following advantageous effects compared with the prior art.
本发明的一种洗碗机洗涤泵及洗碗机,通过在洗涤泵泵壳的内腔内设置的导流部,来引导泵壳内水流改变运动方向、并打散漩涡,从而减少水流的局部压力损失,提高洗涤泵的工作效率。The dishwasher washing pump and the dishwasher of the present invention guide the water flow in the pump casing to change the moving direction and break up the vortex by the flow guiding portion provided in the inner cavity of the washing pump casing, thereby reducing the water flow. Partial pressure loss improves the working efficiency of the washing pump.
本发明的其中一种导流部是导水筋,该导水筋的凸出于泵壳的内表面,一端位于泵壳内 水流漩涡的起始处,且与该处水流漩涡相切,并在其延伸方向上采用了合适的曲率半径的曲线,从而在导水筋打散漩涡,消除“死水区”的同时,将其对水流的阻挡和由导流造成的能量损失降到最低。One of the flow guiding portions of the present invention is a water guiding rib protruding from the inner surface of the pump casing and having one end located inside the pump casing The beginning of the water vortex, and tangential to the water flow vortex, and the curve of the appropriate radius of curvature in the direction of its extension, so that when the water rib breaks the vortex and eliminates the "dead water zone", The blockage of the water flow and the energy loss caused by the flow are minimized.
同时本发明还很适用于通过一个洗涤泵,同时带动多个喷淋臂的工作的洗碗机。在这种洗碗机中,每一个喷淋臂下部的与之相通的泵壳处,由于弯管或通流截面变化而遭成局部阻力,都会引起局部压力损失。因此本发明在每一个泵壳与喷淋臂相通的开口处都设置了导水筋,同时每个开口处的导水筋的数量/长度又根据其水流强度的变化而进行增减和特别的设计,全面考虑了各个容易造成局部压力损失的区域的要求,并平衡了洗碗机整体的要求,极大地提高了整个洗涤泵的工作效率。同时由于导水筋的形状,数量和空间分布位置等因素都进行了相应的优化,也使整个设备由导流部自身的阻碍而造成的压力损失降低到最小。At the same time, the invention is also well suited for use in a dishwasher that drives a plurality of spray arms through a wash pump. In such a dishwasher, the portion of the pump casing that is in communication with the lower portion of each of the spray arms is partially resisted due to a change in the bend or flow cross section, causing local pressure loss. Therefore, in the present invention, the water guiding rib is arranged at the opening of each pump casing and the spray arm, and the number/length of the water guiding ribs at each opening is increased or decreased according to the change of the water flow intensity and the special The design fully considers the requirements of each area that is prone to local pressure loss, and balances the overall requirements of the dishwasher, greatly improving the efficiency of the entire washing pump. At the same time, due to the shape, quantity and spatial distribution of the water guiding ribs, the factors are optimized accordingly, and the pressure loss caused by the obstruction of the whole guiding device itself is minimized.
本发明还进一步设计了导水柱或导水槽等多种导流部的实现形式,可以针对不同的洗涤泵进行个性化的选择,以最大限度地利用导流部和具体泵壳结合后的导水效果,使洗涤泵喷水效率更高,洗碗机的洗涤效果更佳,更节水。而且由于导流部消除了漩涡和紊流,因此洗涤泵在工作时的工作噪音也得到了极大的降低。The invention further designs an implementation form of a plurality of water guiding portions such as a water guiding column or a water guiding trough, and can individually select different washing pumps to maximize the utilization of the water guiding unit after the combination of the diversion portion and the specific pump casing. The effect is that the washing pump is more efficient in water spraying, and the washing effect of the dishwasher is better and the water saving is more. Moreover, since the flow guiding portion eliminates eddy currents and turbulence, the working noise of the washing pump during operation is also greatly reduced.
下面结合附图对本发明的具体实施方式作进一步详细的描述。The specific embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
附图说明DRAWINGS
附图作为本发明的一部分,用来提供对本发明的进一步的理解,本发明的示意性实施例及其说明用于解释本发明,但不构成对本发明的不当限定。显然,下面描述中的附图仅仅是一些实施例,对于本领域普通技术人员来说,在不付出创造性劳动的前提下,还可以根据这些附图获得其他附图。在附图中:The drawings are intended to provide a further understanding of the invention, and are intended to be illustrative of the invention. It is apparent that the drawings in the following description are only some embodiments, and other drawings may be obtained from those skilled in the art without departing from the drawings. In the drawing:
图1是本发明的一种洗碗机洗涤泵及洗碗机的泵壳示意图;Figure 1 is a schematic view of a pump casing of a dishwasher washing pump and a dishwasher of the present invention;
图2是本发明的一种洗碗机洗涤泵及洗碗机的泵壳外观示意图;2 is a schematic view showing the appearance of a pump casing of a dishwasher washing pump and a dishwasher according to the present invention;
图中:1、第一导水筋;2、泵壳;3、内腔;4、水道;5、第二导水筋;6、第一开口;;7、第二开口;。In the figure: 1, the first water guiding rib; 2, the pump casing; 3, the inner cavity; 4, the water channel; 5, the second water guiding rib; 6, the first opening; 7, the second opening;
需要说明的是,这些附图和文字描述并不旨在以任何方式限制本发明的构思范围,而是通过参考特定实施例为本领域技术人员说明本发明的概念。It is to be understood that the drawings and the written description are not intended to limit the scope of the present invention in any way.
具体实施方式Detailed ways
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例中的附 图,对实施例中的技术方案进行清楚、完整地描述,以下实施例用于说明本发明,但不用来限制本发明的范围。In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the following will be incorporated in the embodiments of the present invention. The drawings illustrate the present invention in a clear and complete manner, and the following examples are intended to illustrate the invention but not to limit the scope of the invention.
在本发明的描述中,需要说明的是,术语“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. The orientation or positional relationship of the indications is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description of the invention and the simplified description, rather than indicating or implying that the device or component referred to has a specific orientation, in a specific orientation. The construction and operation are therefore not to be construed as limiting the invention.
在本发明的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连。对于本领域的普通技术人员而言,可以具体情况理解上述术语在本发明中的具体含义。In the description of the present invention, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.
如图1至图2所示,本发明公开了一种洗碗机洗涤泵及洗碗机,洗碗机包括喷淋臂,所述洗涤泵包括具有内腔3的泵壳2,所述泵壳2上开有开口与所述喷淋臂相通,所述泵壳2的内腔3内设置有导流部,所述导流部的部分结构位于所述开口在所述内腔3的投影内,所述导流部用于引导泵壳2内水流改变运动方向,打散漩涡,减少水流的局部压力损失。本发明消除了洗涤泵中“死水区”或者“涡旋区”造成的能量损失,因此提高了洗涤泵的工作效率。As shown in FIGS. 1 to 2, the present invention discloses a dishwasher washing pump and a dishwasher, the dishwasher comprising a spray arm, the washing pump comprising a pump casing 2 having a cavity 3, the pump An opening is opened in the shell 2 to communicate with the spray arm, and a flow guiding portion is disposed in the inner cavity 3 of the pump casing 2, and a partial structure of the flow guiding portion is located at a projection of the opening in the inner cavity 3. The flow guiding portion is configured to guide the water flow in the pump casing 2 to change the moving direction, break up the vortex, and reduce the partial pressure loss of the water flow. The invention eliminates the energy loss caused by the "dead water zone" or "vortex zone" in the wash pump, thus improving the working efficiency of the wash pump.
实施例1Example 1
如图1至图2所示,本实施例中揭示了一种洗碗机洗涤泵。该洗涤泵安装在洗碗机内,与洗碗机的喷淋臂相通,用于为喷淋臂提供高压力的洗涤水,使喷淋臂在喷出的洗涤水的反作用力下快速旋转,并同时将高压力的洗涤水喷淋到餐具上,实现洗碗机的对餐具的洗涤。由洗碗机的洗涤原理可知:洗碗机的洗涤效果与洗涤泵的工作效率,也就是洗涤泵所提供的洗涤水压力的大小直接相关。As shown in Figures 1 to 2, a dishwasher washing pump is disclosed in this embodiment. The washing pump is installed in the dishwasher and communicates with the spray arm of the dishwasher to provide high pressure washing water for the spray arm, so that the spray arm rotates rapidly under the reaction force of the sprayed washing water. At the same time, high-pressure washing water is sprayed onto the tableware to wash the dishwasher. According to the washing principle of the dishwasher, the washing effect of the dishwasher is directly related to the working efficiency of the washing pump, that is, the washing water pressure provided by the washing pump.
然而,在洗碗机的实际工作中,经常会在洗涤泵处造成局部压力损失,严重影响洗涤泵的有用输出功率。所谓的局部压力损失是指:液体流经如阀口、弯管、通流截面变化等局部阻力引起的压力损失。局部压力损失产生的原因:液体流过局部装置时形成死水区或漩涡区,液体在此区域并不参加主流动,而是不断的打旋,加速液体摩擦或造成质点碰撞,产生局部能量损失;液体流过局部装置时流速的大小和方向发生急剧变化,各截面上的速度分布规律也不断变化,引起附加摩擦而消耗能量。要解决局部压力损失,就需要对水流进行干预,对漩涡生成处的水流进行相应的引导,改变水流的的原有流动方向,使所生成漩涡被及时打散。 However, in the actual operation of the dishwasher, local pressure loss is often caused at the washing pump, which seriously affects the useful output power of the washing pump. The so-called partial pressure loss refers to the pressure loss caused by the local resistance of the liquid flowing through the valve port, the elbow, and the change of the flow cross section. The cause of partial pressure loss: when the liquid flows through the local device, it forms a dead water zone or a vortex zone. The liquid does not participate in the main flow in this zone, but continuously swirls, accelerates the liquid friction or causes the particle collision, and generates local energy loss; When the local device flows through, the magnitude and direction of the flow rate change abruptly, and the velocity distribution law on each cross section also changes constantly, causing additional friction and consuming energy. To solve the partial pressure loss, it is necessary to intervene in the water flow, and guide the water flow at the vortex generation to change the original flow direction of the water flow, so that the generated vortex is broken up in time.
洗碗机泵壳上的与喷淋臂相通的开口处,由于水流在此处的截面积急剧变小,并且此处的泵壳内壁的曲率半径过小,是最容易造成上述的局部压力损失情况出现的位置。本发明针对这些区域设置了相应的导流部,来消除漩涡区或者死水区。The opening on the dishwasher pump casing that communicates with the spray arm is most likely to cause the above partial pressure loss due to the sharply smaller cross-sectional area of the water flow here and the radius of curvature of the inner wall of the pump casing is too small. The location where the situation occurs. The present invention provides corresponding flow guiding portions for these regions to eliminate the vortex region or the dead water region.
如图所示,本发明在泵壳2的内腔3内设置有导流部,所述导流部的部分结构位于所述开口在所述内腔3的投影内,所述导流部用于引导泵壳内水流改变运动方向,打散漩涡,减少水流的局部压力损失。本实施例中的所述导流部是凸出于所述泵壳的内表面的导水筋;具体地,也就是在图1和图2中分别与第一开口6所对应的第一导水筋1,和与第二开口7所对应的第二导水筋5。本实施例中,上述导水筋是整体紧密与内壁紧密贴合的长条状导水筋,一体成型于泵壳2的内壁上。在其他的实施例中,喷淋臂的数量可以增减,其所对应的开口下部的内腔3中都会设置如本实施例中所述的导水筋,这里不再进行赘述。As shown, the present invention is provided with a flow guiding portion in the inner cavity 3 of the pump casing 2, a partial structure of the flow guiding portion is located in the projection of the opening in the inner cavity 3, and the flow guiding portion is used. The water flow in the pump casing is changed to change the direction of motion, and the vortex is scattered to reduce the partial pressure loss of the water flow. The flow guiding portion in this embodiment is a water guiding rib protruding from the inner surface of the pump casing; specifically, that is, the first guiding corresponding to the first opening 6 in FIGS. 1 and 2, respectively. The rib 1, and the second water guiding rib 5 corresponding to the second opening 7. In the embodiment, the water guiding rib is an elongated water guiding rib which is closely adhered to the inner wall as a whole, and is integrally formed on the inner wall of the pump casing 2. In other embodiments, the number of the spray arms can be increased or decreased, and the water guiding ribs as described in the embodiment are disposed in the inner cavity 3 of the corresponding lower opening, which will not be described herein.
本实施例中,如图1和图2所示,第一导水筋1和第二导水筋5的一端位于泵壳内水流漩涡的起始处,且与该处水流漩涡相切;另一端按曲线沿泵壳内水流的方向向泵壳侧壁延伸,所述曲线是导水筋曲线。本实施例中第一导水筋1包含两条导水筋,并分别从泵壳内第一开口6处形成水流漩涡的起始处,向第一开口6处泵壳侧壁方向按曲线延伸的方式延伸,并最终相交于泵壳侧壁上;而第二导水筋5只包括一条导水筋,是从泵壳内的第二开口7处形成水流漩涡的起始处,向第二开口7处的泵壳侧壁方向按曲线延伸的方式延伸。由于第二开口7处的水流走向的原因,如图1中所示,第二导水筋5并没有和侧壁相交。In this embodiment, as shown in FIG. 1 and FIG. 2, one ends of the first water guiding rib 1 and the second water guiding rib 5 are located at the beginning of the water flow vortex in the pump casing, and are tangential to the water flow vortex at that place; One end extends along the curve in the direction of the water flow in the pump casing toward the side wall of the pump casing, and the curve is a water guiding curve. In the embodiment, the first water guiding rib 1 comprises two water guiding ribs, and respectively forms a starting point of the water flow vortex from the first opening 6 in the pump casing, and extends in a curve direction toward the sidewall of the pump casing at the first opening 6. The way to extend and eventually intersect on the side wall of the pump casing; and the second water guiding rib 5 includes only one water guiding rib, which is the starting point of the water flow vortex from the second opening 7 in the pump casing, to the second The direction of the side wall of the pump casing at the opening 7 extends in a curved manner. Due to the direction of the water flow at the second opening 7, as shown in Fig. 1, the second water guiding rib 5 does not intersect the side wall.
第一导水筋1和第二导水筋5都是沿着曲线向水泵延伸,导水筋曲线都包括不同曲率半径的曲线,而曲率半径是根据水流的模拟实验和流体计算得到的数值,为了能够实现导水筋在消除“漩涡区”和“死水区”的同时,尽量减少导水筋对于内腔3内的水流的阻挡,所述曲率半径均大于泵壳的曲率半径。The first water guiding rib 1 and the second water guiding rib 5 both extend along the curve toward the water pump, and the water guiding rib curves all include curves of different radii of curvature, and the radius of curvature is a value calculated according to a simulation experiment of the water flow and a fluid calculation. In order to enable the water guiding rib to eliminate the "vortex zone" and the "dead water zone" while minimizing the barrier of the water guiding dam to the water flow in the inner cavity 3, the radius of curvature is larger than the radius of curvature of the pump casing.
本发明适用于喷淋臂为多个,泵壳开口为多个洗涤泵,不同泵壳开口所对应的导水筋的数量/长度,根据所述导水筋所在内腔处的水流强度不同而变化。The invention is applicable to a plurality of spray arms, the pump casing opening is a plurality of washing pumps, and the number/length of the water guiding ribs corresponding to different pump casing openings is different according to the water flow intensity at the inner cavity of the water guiding rib. Variety.
如图1和图2所示,本实施例中的洗碗机使用一个水泵,并同时为两个喷淋臂供水。上述两个喷淋臂分别与第一开口6和第二开口7相通,而第一开口6和第二开口7的下部通过水道4同时与水泵的泵轮相通。如图1所示,本实施例中的第一开口6与水泵的泵轮距离更近,相比于第二开口7,此处的水流强度更大。在造成漩涡时,第一开口6处的漩涡水流强度会更大,相应的所造成的局部压力损失也更大,因此第一导水筋1需要由两根导水筋组成,而第二导水筋5只需要一根导水筋构成。与此同时第一导水筋1的长度也比第二导水筋5的 长度长,因为只有这样才能够在强度较大的第一开口6处实现较好的消除局部压力损失的效果。由于第二开口7距离泵轮较远,水流经过水道4的传送之后,水流压力有所减弱,漩涡和紊流的情况有所减轻,因此,为了能够使两个喷淋臂的喷水和洗涤平衡,与第一开口6相比,第二开口7处要尽量减少由于导流自身所造成的压力损失,而对于消除漩涡和紊流的要求则比第一开口6处要降低很多。因此,在第二开口7处的第二导水筋5只有一条,而且同时长度也要比第一导水筋1短些。As shown in Figures 1 and 2, the dishwasher of this embodiment uses a water pump and simultaneously supplies water to the two spray arms. The two spray arms are respectively in communication with the first opening 6 and the second opening 7, and the lower portions of the first opening 6 and the second opening 7 are simultaneously communicated with the pump wheel of the water pump through the water channel 4. As shown in Fig. 1, the first opening 6 in this embodiment is closer to the pump wheel of the water pump, and the water flow intensity here is greater than that of the second opening 7. When the vortex is caused, the vortex water flow intensity at the first opening 6 is greater, and the corresponding partial pressure loss is also greater, so the first water guiding rib 1 needs to be composed of two water guiding ribs, and the second guiding The ribs 5 only need a water guiding rib. At the same time, the length of the first water guiding rib 1 is also longer than that of the second water guiding rib 5 The length is long, because only in this way is it possible to achieve a better effect of eliminating local pressure loss at the first opening 6 having a greater strength. Since the second opening 7 is far away from the pump wheel, the water flow pressure is reduced after the water flow passes through the water channel 4, and the vortex and turbulence are reduced. Therefore, in order to enable the water spray and washing of the two spray arms Balancing, compared with the first opening 6, the second opening 7 is to minimize the pressure loss caused by the diversion itself, and the requirement for eliminating the vortex and turbulence is much lower than that of the first opening 6. Therefore, there is only one second water guiding rib 5 at the second opening 7, and the length is also shorter than the first water guiding rib 1.
由流体的流动特性可知,各个导水筋之间的间隔的变化要满足水流变化的要求,因此在导水筋的延伸方向上需要进行合理的设计。如图1所示,在第一开口6处对应设置了由多条导水筋构成的第一导水筋1,为了使由导流自身造成的压力损失降低到最小,所述多条导水筋相互不能相交。并且进一步地,在本实施例中,如图1所示,第一导水筋1中的各条导水筋,在向泵壳侧壁延伸的方向相互背离。这样的设计能够满足流体流动的需要,不会造成导流部出口处水流由于截面的小而造成的压力损失。It can be known from the flow characteristics of the fluid that the change in the spacing between the individual water guiding ribs is required to meet the requirements of the water flow change, so that a reasonable design is required in the extending direction of the water guiding rib. As shown in FIG. 1 , a first water guiding rib 1 composed of a plurality of water guiding ribs is correspondingly arranged at the first opening 6 , and the plurality of water guiding bodies are reduced in order to minimize the pressure loss caused by the guiding current itself. The ribs cannot intersect each other. Further, in the present embodiment, as shown in FIG. 1, each of the water guiding ribs in the first water guiding rib 1 faces away from each other in a direction extending toward the side wall of the pump casing. Such a design can meet the needs of fluid flow without causing pressure loss due to the small cross section at the outlet of the flow guide.
同时,本实施例中的导水筋高度是小于内腔3的高度的,这样可以底部消除了漩涡的顶层水流能够在导水筋上部流动,进一步减少了导水筋自身造成的水流压力损失。At the same time, the height of the water guiding rib in the embodiment is smaller than the height of the inner cavity 3, so that the bottom water flow which eliminates the vortex at the bottom can flow in the upper part of the water guiding rib, further reducing the water flow pressure loss caused by the water guiding rib itself.
实施例2Example 2
本实施例与实施例1的区别在于,实施例2中的所述导流部是凸出于所述泵壳的内表面的,与所述表面紧密贴合的柱形的导水柱。与实施例1类似的,所述导水柱高度小于所述容腔的高度;并位于水流在所述内腔内产生漩涡处。导水柱的作用与上述的导水筋的作用类似,都是改变原有的水流的行进方向,打散漩涡水流,消除漩涡区和死水区,从而降低洗涤泵的局部压力损失。The difference between this embodiment and the embodiment 1 is that the flow guiding portion in the embodiment 2 is a cylindrical water guiding column that protrudes from the inner surface of the pump casing and closely adheres to the surface. Similar to Embodiment 1, the water guiding column height is less than the height of the cavity; and the water flow creates a vortex within the inner cavity. The function of the water guiding column is similar to that of the above-mentioned water guiding rib, which changes the traveling direction of the original water flow, breaks up the vortex water flow, eliminates the vortex area and the dead water area, thereby reducing the partial pressure loss of the washing pump.
更进一步地,实施例2的导水柱的数量和高度以及粗细根据导水柱所在内腔处的水流强度不同而变化。从而更有效地保证洗涤泵的有效功率,并使不同出口处的水流更加平衡。比如在水流强度较大的位置放置较多、和或较高、和或较粗的导水柱来实现技术要求。Further, the number and height of the water guiding columns of Embodiment 2 and the thickness vary depending on the intensity of the water flow at the inner cavity where the water guiding column is located. Thereby the effective power of the washing pump is more effectively ensured and the water flow at different outlets is more balanced. For example, a water guide column with more, and or higher, and or thicker at a position where the water flow intensity is greater is required to achieve the technical requirements.
实施例3Example 3
本实施例与实施例1和实施例2的区别在于,实施例3中的所述导流部是下凹于所述泵壳的内表面的,具有弯曲曲线的条状导流槽;所述导流槽的一端位于泵壳内水流漩涡的起始处,且与该处水流漩涡相切。当然与上述实施例类似的,该导流槽的长度,深度以及数量也和所处位置的漩涡水流的强度有关,当漩涡水流强度较大时,此处的导流槽就应该选用长度 较长、和或深度较深、和或数量较多的导流槽。The difference between the embodiment and the embodiment 1 and the embodiment 2 is that the flow guiding portion in the embodiment 3 is a strip-shaped guide groove having a curved curve which is recessed on the inner surface of the pump casing; One end of the diversion trough is located at the beginning of the water vortex in the pump casing and is tangential to the water flow vortex there. Of course, similar to the above embodiment, the length, depth and number of the flow guiding groove are also related to the intensity of the vortex water flow at the position. When the vortex water flow intensity is large, the guiding groove here should be selected in length. Longer, and or deeper, and or a larger number of diversion channels.
实施例4Example 4
本实施例与实施例1的区别在于,实施例4采用的导流部并不是凸出于泵壳的内表面的导水筋,而是通过固定装置与泵壳内壁固定的半悬空的导水隔板。本实施例的导水隔板与实施例1中的导水筋的区别在于,导水隔板的底部并不与泵壳的内表面紧密想贴,而是悬空设置。本实施例的导水隔板设计可以使水流从导水隔板的顶部和底部自由流过,但是水流的中部仍然会被所述的导水隔板导流打散,从而消除由水流漩涡而造成的局部压力损失。The difference between this embodiment and the embodiment 1 is that the flow guiding portion used in the embodiment 4 is not a water guiding rib protruding from the inner surface of the pump casing, but a semi-suspended water guiding water fixed by the fixing device and the inner wall of the pump casing. Partition. The water guiding partition of the present embodiment is different from the water guiding rib of the first embodiment in that the bottom of the water guiding partition is not closely attached to the inner surface of the pump casing, but is suspended. The water guiding partition of the embodiment is designed to allow water to flow freely from the top and bottom of the water guiding partition, but the middle portion of the water flow is still deflected by the water guiding partition, thereby eliminating the swirl of the water flow. Partial pressure loss caused.
实施例5Example 5
本实施例揭示一种采用上述任一实施例所述的洗碗机洗涤泵的洗碗机,该洗碗机的洗涤泵泵壳上具有上述任一实施例所述的用于消除洗涤泵内水流漩涡的导流装置,该洗碗机是消除了洗碗机洗涤泵内的局部压力损失的高效洗碗机。The embodiment discloses a dishwasher using the dishwasher washing pump according to any of the above embodiments, wherein the washing pump casing of the dishwasher has the above-mentioned embodiment for eliminating the washing pump. A water flow vortex deflector that is an efficient dishwasher that eliminates partial pressure loss within the dishwasher wash pump.
以上所述仅是本发明的较佳实施例而已,并非对本发明作任何形式上的限制,虽然本发明已以较佳实施例揭露如上,然而并非用以限定本发明,任何熟悉本专利的技术人员在不脱离本发明技术方案范围内,当可利用上述提示的技术内容作出些许更动或修饰为等同变化的等效实施例,但凡是未脱离本发明技术方案的内容,依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰,均仍属于本发明方案的范围内。 The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and any technology that is familiar with the present patent. Those skilled in the art can make some modifications or modifications to equivalent embodiments by using the technical content of the above-mentioned hints without departing from the technical scope of the present invention, but the technology according to the present invention does not deviate from the technical solution of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments are still within the scope of the present invention.

Claims (10)

  1. 一种洗碗机洗涤泵,洗碗机包括喷淋臂,所述洗涤泵包括具有内腔的泵壳,所述泵壳上开有开口与所述喷淋臂相通,其特征在于,所述泵壳的内腔内设置有导流部,所述导流部的部分结构位于所述开口在所述内腔的投影内,所述导流部用于引导泵壳内水流改变运动方向,打散漩涡,减少水流的局部压力损失。A dishwasher washing pump, the dishwasher comprising a spray arm, the washing pump comprising a pump casing having an inner cavity, the pump casing having an opening communicating with the spray arm, wherein a flow guiding portion is disposed in the inner cavity of the pump casing, and a partial structure of the guiding portion is located in the projection of the opening in the inner cavity, and the guiding portion is used for guiding the water flow in the pump casing to change the moving direction, A vortex is scattered to reduce the local pressure loss of the water flow.
  2. 根据权利要求1所述的洗碗机洗涤泵,其特征在于,所述导流部是凸出于所述泵壳的内表面的导水筋;The dishwasher washing pump according to claim 1, wherein the flow guiding portion is a water guiding rib protruding from an inner surface of the pump casing;
    优选地,所述导水筋一体成型于所述泵壳的内壁上。Preferably, the water guiding rib is integrally formed on an inner wall of the pump casing.
  3. 根据权利要求2所述的洗碗机洗涤泵,其特征在于,所述导水筋的一端位于泵壳内水流漩涡的起始处,且与该处水流漩涡相切。A dishwasher washing pump according to claim 2, wherein one end of said water guiding rib is located at the beginning of the swirl of the water flow in the pump casing and is tangential to the water flow vortex there.
  4. 根据权利要求3所述的洗碗机洗涤泵,其特征在于,所述导水筋的另一端按曲线沿泵壳内水流的方向向泵壳侧壁延伸,所述曲线是导水筋曲线。The dishwasher washing pump according to claim 3, wherein the other end of the water guiding rib extends in a direction of water flow in the pump casing toward the side wall of the pump casing, and the curve is a water guiding rib curve.
  5. 根据权利要求4所述的洗碗机洗涤泵,其特征在于,同一条所述的导水筋曲线包括不同曲率半径的曲线;A dishwasher washing pump according to claim 4, wherein the same said water guiding rib curve comprises curves of different radii of curvature;
    优选的,所述曲率半径大于泵壳的曲率半径。Preferably, the radius of curvature is greater than a radius of curvature of the pump casing.
  6. 根据权利要求2至5任一所述的洗碗机洗涤泵,其特征在于,所述开口为多个,并且不同开口所对应的导水筋的数量/长度,根据所述导水筋所在内腔处的水流强度不同而变化;The dishwasher washing pump according to any one of claims 2 to 5, wherein the opening is plural, and the number/length of the water guiding ribs corresponding to the different openings is according to the inside of the water guiding rib The intensity of the water flow at the cavity varies;
    优选地,当所述开口对应多条导水筋时,所述多条导水筋相互不相交。Preferably, when the opening corresponds to a plurality of water guiding ribs, the plurality of water guiding ribs do not intersect each other.
  7. 根据权利要求6所述的洗碗机洗涤泵,其特征在于,所述导水筋的高度小于所述容腔的高度。The dishwasher washing pump according to claim 6, wherein the height of the water guiding rib is smaller than the height of the cavity.
  8. 根据权利要求1所述的洗碗机洗涤泵,其特征在于,所述导流部是凸出于所述泵壳的内表面的,与所述表面紧密贴合的柱形的导水柱;The dishwasher washing pump according to claim 1, wherein the flow guiding portion is a cylindrical water guiding column protruding from an inner surface of the pump casing and closely adhering to the surface;
    优选地,所述导水柱高度小于所述容腔的高度;并位于水流在所述内腔内产生漩涡处;Preferably, the water guiding column height is smaller than the height of the cavity; and the water flow is in a vortex in the inner cavity;
    优选地,所述导水柱的数量/高度/粗细,根据导水柱所在内腔处的水流强度不同而变化。Preferably, the number/height/thickness of the water guiding column varies according to the intensity of the water flow at the inner cavity where the water guiding column is located.
  9. 根据权利要求1所述的洗碗机洗涤泵,其特征在于,所述导流部是下凹于所述泵壳的内表面的,具有弯曲曲线的条状导流槽;The dishwasher washing pump according to claim 1, wherein the flow guiding portion is a strip-shaped guide groove having a curved curve which is recessed on an inner surface of the pump casing;
    优选地,所述导流槽的一端位于泵壳内水流漩涡的起始处,且与该处水流漩涡相切。Preferably, one end of the flow guiding trough is located at the beginning of the water flow vortex in the pump casing and is tangential to the water flow vortex there.
  10. 一种采用如权利要求1至9任一所述的洗碗机洗涤泵的洗碗机,其特征在于,所述 洗碗机的洗涤泵泵壳上具有用于消除洗涤泵内水流漩涡的所述导流部。 A dishwasher using the dishwasher washing pump according to any one of claims 1 to 9, wherein The drain pump housing of the dishwasher has the flow guides for eliminating swirls of water flow in the wash pump.
PCT/CN2017/105501 2017-07-14 2017-10-10 Dishwasher washing pump and dishwasher WO2019010850A1 (en)

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