CN112900019A - Heating circulating pump and washing machine - Google Patents

Heating circulating pump and washing machine Download PDF

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Publication number
CN112900019A
CN112900019A CN201911226003.6A CN201911226003A CN112900019A CN 112900019 A CN112900019 A CN 112900019A CN 201911226003 A CN201911226003 A CN 201911226003A CN 112900019 A CN112900019 A CN 112900019A
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CN
China
Prior art keywords
pump
heating
impeller
water
cavity
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Pending
Application number
CN201911226003.6A
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Chinese (zh)
Inventor
赵志强
许升
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Washing Machine Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Washing Machine Co Ltd
Haier Smart Home Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Haier Washing Machine Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Washing Machine Co Ltd
Priority to CN201911226003.6A priority Critical patent/CN112900019A/en
Priority to PCT/CN2020/131074 priority patent/WO2021109897A1/en
Publication of CN112900019A publication Critical patent/CN112900019A/en
Pending legal-status Critical Current

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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08Liquid supply or discharge arrangements
    • D06F39/083Liquid discharge or recirculation arrangements
    • D06F39/085Arrangements or adaptations of pumps
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/04Heating arrangements

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

The invention discloses a heating circulating pump and a washing machine, wherein the heating circulating pump comprises a heating pipe and a heating pipe; the pump comprises a pump shell, wherein a pump cavity for water flow is arranged in the pump shell; the pump shell is provided with a driving device which is used for providing flow driving force for water flow in the pump cavity; the pump shell is provided with an electromagnetic heating module, a metal piece which is contacted with water flowing through the pump cavity is arranged in the pump cavity, and the metal piece heats the water flowing through the pump cavity under the action of a high-frequency magnetic field generated by the electromagnetic heating module. Through the arrangement, the electromagnetic heating device is integrated on the pump, so that the effects of remotely supplying power to, transmitting and heating water flowing through the circulating pump by adopting an electromagnetic effect are achieved; meanwhile, the metal piece is arranged in the pump cavity and laid on the inner wall of the pump shell or other parts integrated in the pump cavity, so that the metal piece for heating water flow is hidden, and the problems that foreign matters such as thread scraps wrapped in water flow of the circulating pump are intercepted and accumulated in the pump cavity are solved.

Description

Heating circulating pump and washing machine
Technical Field
The invention belongs to the field of clothes treatment equipment, particularly relates to a washing machine with a circulating spraying function, and particularly relates to a heating circulating pump which is applied to the washing machine, has a heating function and is used for driving washing water to circularly flow outside an outer barrel.
Background
At present in the household electrical appliances field, the application of heat pump is generally that the heating member does not with water direct contact, can effectually avoid some foreign matters to glue like this and glue on the heating pipe, but this kind of heating efficiency is very low, probably about 70%, has just caused the problem of the energy waste, heat time overlength.
Especially, when the heating pump is applied to a washing machine and used for heating washing water, the total amount of the washing water in the washing machine is large, the heating time is longer by adopting the non-contact heating pump, the washing beat is slowed, and the use experience of a user is influenced.
However, if the heating member is directly disposed in the chamber of the heating pump and directly contacted with water for heating, foreign matters such as thread scraps in washing water of the washing machine flowing through directly contact with the heating member, so that the foreign matters such as thread scraps are wound and accumulated at the heating member, which may cause problems such as affecting heating efficiency and generating peculiar smell, or even cause damage of the heating member in a serious condition.
Therefore, how to arrange a heating pump suitable for a washing machine, so that a heating element integrated on the pump can be directly contacted with water for heating, and foreign matters such as thread scraps in washing water are prevented from being contacted with the heating element, and the heating pump becomes a research and development hotspot.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a heating circulating pump to solve the technical problem that when washing water flows through the heating circulating pump to be heated, thread scraps are contacted and wound with a heating element.
In order to solve the technical problems, the invention adopts the technical scheme that:
a heating circulation pump, comprising; the pump comprises a pump shell, wherein a pump cavity for water flow is arranged in the pump shell; the pump shell is provided with a driving device which is used for providing flow driving force for water flow in the pump cavity; the pump shell is provided with an electromagnetic heating module, a metal piece which is contacted with water flowing through the pump cavity is arranged in the pump cavity, and the metal piece heats the water flowing through the pump cavity under the action of a high-frequency magnetic field generated by the electromagnetic heating module.
Further, the driving device comprises an impeller arranged in the pump cavity, the impeller is made of metal materials and directly forms a metal piece, and/or the impeller is provided with the metal piece or integrally formed with the metal piece.
Further, the impeller comprises a plurality of blades which radially extend from the central rotating shaft and are symmetrically arranged, and metal parts are respectively arranged at the peripheral extending ends of the blades.
Furthermore, a metal piece is arranged on the inner wall of the pump shell or integrally formed on the inner wall of the pump shell.
Furthermore, the pump cavity is columnar, and a metal piece extending along the circumferential direction of the columnar pump cavity is arranged on the side wall of the columnar pump cavity; preferably, the metal member and the inner wall of the pump casing together form a smooth pump chamber peripheral wall.
Furthermore, the electromagnetic heating module is arranged on the outer wall of the pump shell, and the pump shell is made of a non-metal material; preferably, the electromagnetic heating module comprises an electromagnetic coil which is arranged outside the pump shell in a winding manner, and the electromagnetic coil is connected with the driver and is used for transmitting high-frequency alternating current to the electromagnetic coil so as to excite the electromagnetic coil to generate a high-frequency magnetic field; further preferably, the electromagnetic coil is wound on a fixed support, and the fixed support is mounted on the outer wall of the pump shell.
Further, the driving device comprises a motor, the motor is connected with an impeller arranged in the pump cavity, and the motor drives the impeller to rotate and agitate water in the pump cavity, and the water is thrown out of the pump cavity under the action of centrifugal force.
Further, the pump cavity is columnar, the two opposite ends of the columnar pump cavity are respectively provided with an impeller and a water inlet, and the impeller rotates around the axial direction or axial parallel lines of the columnar pump cavity; and a water outlet is arranged on the side wall of the columnar pump cavity close to one end of the impeller and arranged along the tangential direction of the pump cavity.
Furthermore, a plurality of metal pieces are arranged on the inner wall of the pump shell.
The invention also provides a washing machine, which aims to realize the purpose of heating the washing water in the outer barrel by using the heating circulating pump. The technical scheme adopted for achieving the purpose is as follows:
a washing machine is provided with any one of the above circulating heat pumps.
Further, the washing machine comprises an outer barrel, an inner barrel is arranged in the outer barrel, a stirring structure is arranged in the inner barrel, the inner barrel and/or the stirring structure rotate to stir washing water contained in the outer barrel to generate water flow for washing a load contained in the inner barrel, a circulating pipe connected in parallel is arranged outside the outer barrel, a heating circulating pump is connected in series to the circulating pipe, and the washing water in the outer barrel is driven by the heating circulating pump to circularly flow between the outer barrel and the circulating pipe; the heating circulating pump is provided with a heating element for heating circulating water flowing through.
Further, a spraying structure is arranged on the outer barrel and connected with the circulating pipe for uniformly spraying the washing water pumped out from the outer barrel into the inner barrel. Preferably, the water inlet end of the circulating pipe is connected with the bottom of the outer barrel, and the water outlet end of the circulating pipe is communicated with the spraying structure arranged on the upper part of the outer barrel, so that the washing water at the bottom in the outer barrel flows upwards to the spraying structure through the circulating pipe and then is sprayed and reflowed to the upper surface of the washing water in the inner barrel to form circulation.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
through the arrangement, the electromagnetic heating device is integrated on the pump, so that the effect of heating the water flow flowing through the circulating pump by adopting an electromagnetic effect is achieved; meanwhile, the metal piece is arranged in the pump cavity and laid on the inner wall of the pump shell or other parts integrated in the pump cavity, so that the metal piece for heating water flow is hidden, and the problems that foreign matters such as thread scraps wrapped in water flow of the circulating pump are intercepted and accumulated in the pump cavity are solved.
Meanwhile, the heating circulating pump is arranged on the washing machine, so that the washing water in the outer barrel of the washing machine can circularly flow through the circulating pipe, and is heated under the action of the heating element when flowing through the heating circulating pump in the circulating flow process, thereby achieving the purpose of heating the washing water in the outer barrel of the washing machine; simultaneously, with the heating member integration set up in the heating circulating pump, reduced washing machine's part quantity, promoted washing machine's the degree of integrating.
Meanwhile, the invention has simple structure and obvious effect and is suitable for popularization and use.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 illustrates a schematic structural view of a washing machine in an embodiment of the present invention;
FIG. 2 is a schematic sectional view showing a heating circulation pump in example 1 of the present invention;
FIG. 3 is a schematic sectional view showing a heating circulation pump in example 2 of the present invention;
fig. 4 is a schematic sectional view showing a heating circulation pump according to embodiment 3 of the present invention.
Description of the main elements in the figures: 1-shell, 2-outer barrel, 3-inner barrel, 4-impeller, 5-circulating pipe, 6-heating circulating pump, 7-spraying structure, 8-heating element, 9-water inlet pipe, 10-driving motor, 60-pump shell, 61-driving device, 62-pump cavity, 63-metal piece, 64-electromagnetic heating module, 641-electromagnetic coil, 642-driver, 643-bracket, 66-water inlet, 67-water outlet, 68-impeller, 681-blade, 69-motor and 81-connecting terminal.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 4, in the embodiment of the present invention, there is described a heating circulation pump 6 including a pump housing 60, a pump chamber 62 through which a water flow passes being provided in the pump housing 60; a drive unit 61 is mounted on the pump housing 60 for providing a flow driving force to the water flow in the pump chamber 62; a metal member 63 is disposed within pump chamber 62, at least a portion of metal member 63 being in contact with the flow of water through pump chamber 62; the pump casing 60 is provided with the electromagnetic heating module 64, the electromagnetic heating module 64 comprises an electromagnetic coil 641, high-frequency alternating current exceeding audio frequency is introduced into the electromagnetic coil 641, so that the electromagnetic coil 641 generates a high-frequency alternating magnetic field, the metal part 63 in the pump cavity 62 is positioned in the high-frequency alternating magnetic field, the metal part 63 generates heat due to electromagnetic induction, and the heated metal part 63 transfers the heat to water flowing through the pump cavity 62, so that the effect of heating the water flowing through the circulating heating pump is realized. The metal member 63 contains iron or the like to be excited by eddy current in a high-frequency alternating magnetic field generated by the electromagnetic heating module 64 to generate self-heating.
Through the arrangement, the electromagnetic heating device is integrated on the pump, so that the effect of heating the water flow flowing through the circulating pump by adopting an electromagnetic effect is achieved; meanwhile, the metal piece is arranged in the pump cavity and laid on the inner wall of the pump shell or other parts integrated in the pump cavity, so that the metal piece for heating water flow is hidden, and the problems that foreign matters such as thread scraps wrapped in water flow of the circulating pump are intercepted and accumulated in the pump cavity are solved.
Example 1
As shown in fig. 2, the present embodiment describes a heating circulation pump including a pump housing 60, a pump chamber 62 provided in the pump housing 60 for a flow of water therethrough; a drive unit 61 is mounted on the pump housing 60 for providing a flow driving force to the water flow in the pump chamber 62; the drive unit 61 includes an impeller 68 provided in the pump chamber, and the impeller 68 is made of a metal material, and the impeller 68 is directly formed into the metal member 63. The impeller 68 is composed of a material such as iron so as to be excited by eddy current in the high-frequency alternating magnetic field generated by the electromagnetic heating module 64 to generate self-heating.
In the present embodiment, the impeller 68 is entirely made of a metal material, or partially made of a metal material; preferably, at least a surface portion of the impeller 68 is made of a metal material. Therefore, the impeller 68 of the driving device in the pump cavity 62 directly forms the metal part 63, so that the metal part 63 for heating the water flow in the pump cavity 62 does not need to be separately added, the heating function is realized on the premise that the number of components in the pump cavity 62 of the heating circulating pump is inconvenient, and the problem that foreign matters such as thread scraps wrapped in the water flow are intercepted due to the fact that other components are added in the pump cavity is solved.
In this embodiment, the impeller is directly provided as the metal member 63. The drive means 61 comprises an impeller 68 and a motor 69; the impeller 68 is connected to a motor 69 such that the impeller 68 is driven by the motor 69 to rotate about an axis to agitate the water in the pump chamber 62. Since the impeller 68 constituting the metal member 63 is rotatably installed in the pump chamber 62, the metal impeller 68 which is self-heated by the electromagnetic effect can be contacted with moisture in various places in the pump chamber 62 during the rotation process, so as to increase the contact area of the metal impeller 68 and improve the heating uniformity; in addition, the metal impeller 68 is in contact with water at various positions in the pump cavity 62 during rotation to exchange heat, so that the water in the pump cavity is in a flowing state in the whole heating process, the heat transfer rate is increased, and the heating uniformity is improved.
Example 2
As shown in fig. 3, the present embodiment describes a heating circulation pump including a pump housing 60, a pump chamber 62 through which a water flow passes being provided in the pump housing 60; a drive unit 61 is mounted on the pump housing 60 for providing a flow driving force to the water flow in the pump chamber 62; the drive means 61 comprises an impeller 68 disposed within the pump chamber 62, the impeller 68 having a metal member 63 mounted thereon. The metal member 63 is composed of a material such as iron so as to be excited by eddy current in a high-frequency alternating magnetic field generated by the electromagnetic heating module 64 to generate self-heating.
In this embodiment, the impeller 68 includes a plurality of blades 681 extending radially from the central axis, and each blade 681 is arranged symmetrically with respect to the central axis. The impeller 68 is made of a non-metallic material, and the metal fittings 63 are attached to the respective blades 681 of the impeller 68. Thus, the overall mass of the impeller 68 is reduced to ensure the smoothness of the rotation of the impeller 68; meanwhile, the metal member 63 is additionally installed on each blade 681 of the impeller 68, so that the center of gravity of the impeller 68 is located at the center, and the eccentric and deflection of the impeller 68 are avoided.
In this embodiment, the driving device 61 includes an impeller 68 installed in the cylindrical pump cavity 62, the impeller 68 is connected to a motor 69, and the motor 69 drives the impeller 68 to rotate around the axis of the cylindrical pump cavity 62 or the axis parallel line, so as to stir the water flowing through the pump cavity 62, so that the water is thrown out of the pump cavity 62 by centrifugal force, thereby achieving the effects of applying a pressurizing effect to the flowing water and providing a flow driving force.
In this embodiment, the impeller 68 of the driving device 61 is parallel to the axis of the water inlet 66; preferably, the impeller 68 of the driving device 61 is disposed to coincide with the axis of the water inlet 66, so that the water flowing into the pump chamber 62 from the water inlet 66 is thrown out from the water outlet 67 after flowing along the peripheral wall of the pump chamber 62 under the stirring action of the rotating impeller 68, thereby achieving the effect of providing a flow driving force for the water flowing through the heating and circulating pump 6. Preferably, in order to increase the water discharge rate, the axis of the water outlet 67 extends in the tangential direction of the pump chamber 62, so that the water flow driven by the centrifugal force to flow against the inner wall of the pump housing 60 is directly thrown out of the water outlet 67, thereby increasing the water discharge rate.
In this embodiment, pump chamber 62 may be a cylindrical structure having any one or combination of cross-sections, such as: square, trapezoidal, polygonal, etc. Preferably, the pump chamber 62 is configured to be cylindrical in order to facilitate the flow of the water being thrown off against the inner wall of the pump housing 60.
In this embodiment, in order to ensure the normal operation of the electric components of the heating and circulating pump 6, the motor 69 of the driving device 61 is disposed outside the pump housing 60 and outside the pump chamber 62, and only the rotating shaft of the motor 69 penetrates into the pump chamber 62 and is connected to the impeller 68 in the pump chamber 62 for driving the impeller 68 to rotate. Meanwhile, the connection terminal 81 of the heating member 8 is provided outside the pump case 60 to ensure that the power supply line of the heating member 8 and the heating circulation pump 6 do not contact with each other through the water flow.
In this embodiment, a metal member 63 is disposed at an extending end of each blade 681 of the impeller 68, and the metal member 63 rotates together with the impeller 68, so that the metal member 63 is self-heated and exchanges heat with the water flow in the pump chamber 62 during the rotation process due to being in the high-frequency magnetic field generated by the electromagnetic heating module 64, thereby achieving the effect of heating the water flowing through the pump chamber 62.
The metal part is arranged at the end part of the blade of the impeller, so that the rotating torque of the impeller is increased, the centrifugal force of the impeller is improved, the driving torque of the impeller for stirring water flow is increased, and the power of the heating circulating pump is further improved; meanwhile, the metal piece is arranged at the end part of the blade of the impeller, so that the coverage area of the metal piece is enlarged, the heat exchange efficiency of water flow flowing through the metal piece and the pump cavity is improved, and the effect of improving the heating power is achieved.
In this embodiment, in order to increase the coverage area of the heating element and improve the heating efficiency, the metal member 63 may be disposed at other positions of the impeller 68, for example: the outer periphery of the impeller 68 is covered with a layer of metal members 63 and the like (not shown in the drawings).
Example 3
As shown in fig. 4, the present embodiment describes a heating circulation pump including a pump housing 60, a pump chamber 62 through which a water flow passes being provided in the pump housing 60; a drive unit 61 is mounted on the pump housing 60 for providing a flow driving force to the water flow in the pump chamber 62; a metal member 63 is mounted on the inner wall of pump chamber 62. The metal member 63 is composed of a material such as iron so as to be excited by eddy current in a high-frequency alternating magnetic field generated by the electromagnetic heating module 64 to generate self-heating.
In this embodiment, the metal member 63 is fixedly installed on the inner wall of the pump cavity 62, the metal member 63 is located in the high-frequency magnetic field generated by the electromagnetic heating module 64, the metal member 63 is self-heated under the action of the magnetic field, and the heat generated by the metal member 63 exchanges heat with the contacted flowing water flow to heat the water, so as to achieve the effect of heating the water flowing through the heating circulation pump.
In this embodiment, the pump casing 60 of the heating circulation pump 6 is made of a non-metal material, a metal member 63 is laid on at least a part of the inner wall of the pump casing 60, and the water flowing through the pump chamber 62 contacts with the metal member 63 to heat the water. Preferably, the metal member 63 is laid to cover the inner wall of the pump housing 60 to increase the contact area of the metal member 63 with the water in the pump chamber 62. By laying a layer of metal pieces on the inner wall of the pump shell, the water flow flowing through the pump cavity can be comprehensively heated, so that the effects of comprehensively heating the water flow and improving the heating rate are achieved.
In this embodiment, in order to prevent foreign matter such as lint contained in the water flowing through the pump from being caught, the peripheral wall of the pump chamber 62 formed by the inner wall of the pump housing 60 and the metal member 63 is formed into a smooth surface, so that the foreign matter such as lint is prevented from being caught by the peripheral wall of the pump chamber 62.
In this embodiment, the pump casing 60 is made of a heat-resistant material to prevent the pump casing 60 from being damaged by the heated water in the pump chamber 62, such as: adopting metal material aluminum alloy and the like; inorganic non-metallic material ceramics and the like can also be adopted; high-temperature-resistant high-molecular materials PPS, modified heat-resistant PP, PBT and the like can also be adopted.
Example 4
The present embodiment is based on the heating circulation pump described in the above embodiments 1 to 3, and further has the following technical features:
as shown in fig. 2 to 4, in the present embodiment, an electromagnetic heating module 64 is mounted on an outer wall of the pump housing 60 of the heating circulation pump 6, and the electromagnetic heating module 64 includes: an electromagnetic coil 641 is wound around the exterior of the pump housing 60, and the electromagnetic coil 641 is connected to a driver 642, and the driver 642 is used for transmitting high-frequency alternating current to the electromagnetic coil 641 to excite and generate a high-frequency magnetic field.
In this embodiment, the driver 642 is connected to a power supply, which may be 220V household ac, 380V industrial three-phase ac, or the like. The driver 642 converts the current input by the power supply into direct current at present, and then converts the direct current into high-frequency alternating current exceeding the audio frequency; then, a high-frequency alternating current is output to the electromagnetic coil 641, the electromagnetic coil 641 generates a high-frequency alternating magnetic field by using the incoming high-frequency alternating current, an electromagnetic induction line of the high-frequency alternating magnetic field penetrates through the pump case 60 made of a non-metallic material and acts on the metal member 63 arranged in the pump cavity 62, at least part of the metal member 63 contains iron, the metal member 63 containing iron generates a strong vortex on itself due to electromagnetic induction, and the vortex completes conversion of electric energy to heat energy when overcoming the internal resistance of the metal member 63 flowing through the vortex, so that the metal member 63 self-heats, and finally, the effect that the metal member 63 self-heats water flowing through the heating circulating pump 6 by directly contacting with water flowing through the pump cavity 62 to.
In this embodiment, the electromagnetic coil 641 may be provided around the pump housing 60 in one turn, or the electromagnetic coil 641 may be provided so as to cover a portion of the pump housing 60. Preferably, the pump housing 60 is horizontally disposed in a cylindrical shape, and the electromagnetic coil 641 covers at least the bottom of the horizontally cylindrical pump housing 60 to heat the portion of the pump chamber 62 that always has a flow of water flowing through the pump housing 60, thereby improving the heating efficiency.
In this embodiment, the electromagnetic coil 641 is wound on a fixing holder 643, the fixing holder 643 is mounted on the outer wall of the pump housing 60, the terminal of the electromagnetic coil 641 is connected to the output terminal of the driver 642, and the input terminal of the driver 642 is connected to the power supply. The driver 642 is fixed to a fixed bracket 643 or directly fixed to the outer wall of the pump housing 60. Thus, the electromagnetic heating module 64 is fixedly mounted on the pump housing 60.
Example 5
As shown in fig. 1 to 4, the present embodiment describes a washing machine equipped with the circulation heat pump 6 of the above embodiment, which includes a housing 1; an outer barrel 2 is arranged in the shell 1, and the outer barrel 2 can generate vibration displacement through a damping device and is arranged on the shell 1 and used for containing washing water; an inner barrel 3 is arranged in the outer barrel 2, the inner barrel 3 is connected with a driving motor 10 through a rotating shaft, and is rotatably arranged in the outer barrel 2 and used for containing a load to be washed; the inner barrel 3 is provided with washing holes for communicating the inner barrel 3 with the outer barrel 2, so that washing water can flow between the inner barrel and the outer barrel through the washing holes; the water inlet pipe 9, the water outlet end is communicated with the outer barrel 2 and is used for supplying water to the outer barrel 2 of the washing machine.
The washing machine of the present invention may be a drum-type washing machine or a pulsator-type washing machine, and the following is developed for convenience of description by taking a pulsator-type washing machine as an example: the outer barrel 2 and the inner barrel 3 are coaxially and vertically arranged, the lower end of the inner barrel 3 is sealed by the bottom of the inner barrel 3, a stirring structure is arranged in the inner barrel 3, and the stirring structure can be any device which can stir the washing water contained in the outer barrel 2 in the prior art, such as: as shown in fig. 1, a pulsator 4 is installed at the bottom of the inner tub 3.
In this embodiment, the outer tub 2 is provided with a circulating pipe 5, two ends of the circulating pipe 5 are respectively communicated with the bottom and the upper part of the outer tub 2, the circulating pipe 5 is connected in series with the heating circulating pump 6 according to any of the above embodiments, and the heating circulating pump 6 is used for providing power to drive water at the bottom of the outer tub 2 to flow to the upper part of the outer tub through the circulating pipe. Preferably, in order to facilitate installation and installation, the circulation pipe 5 is disposed outside the outer tub 2, the circulation pipe 5 extends vertically, and the upper and lower ends of the circulation pipe are respectively communicated with the bottom and the top of the outer tub 2 to form a circulation flow passage for circulation flow of the washing water; the heating circulation pump 6 is installed at the lower side of the bottom of the outer tub 2.
In this embodiment, the outer tub 2 is provided with a spraying structure 7, the spraying structure 7 is connected to the water outlet end of the circulation pipe 5, and the spraying structure 7 is provided with a plurality of spraying holes for spraying water toward the inner tub 3, so as to uniformly spray the circulation water supplied from the circulation pipe 5 into the inner tub 3 in a spraying manner, so that the circulation water can uniformly spray the load contained in the inner tub 3, and the mixing uniformity of the washing water and the load in the inner tub 3 can be improved. Meanwhile, because the washing water contained in the outer barrel 2 is pumped out under the action of the heating circulating pump 6, the washing water flowing through the washing water is uniformly distributed under the action of the impeller in the heating circulating pump 6 when flowing through the heating circulating pump 6, and the distribution uniformity of the washing water is further improved. In addition, because the inlet water in the outer barrel continuously and circularly flows between the outer barrel and the circulating pipe, the washing agent, the washing powder and the like which are put into the outer barrel are uniformly distributed in the inlet water in the outer barrel under the action of the circulating water flow. Preferably, the spraying structure 7 is an annular cavity arranged at the position of a barrel opening at the top of the outer barrel 2, a plurality of water spraying ports for spraying water towards the inner barrel 3 are uniformly distributed on the inner periphery of the annular cavity, a circle of annular flow channels are arranged in the annular cavity, each water spraying port is communicated with the annular flow channels, a water inlet communicated with a water outlet of the circulating pipe 5 is arranged on the periphery of the spraying structure 7, and the water inlet is communicated with the annular flow channels inside the spraying structure 7.
In the present embodiment, the heating circulation pump is mounted on a drum washing machine, the outer tub is provided as an outer tub having a horizontal or inclined axis, and an inner tub is mounted in the outer tub so as to be rotatable relative thereto. The circulating pipe is set outside the outer cylinder, the bottom of the outer cylinder is connected to the inner cylinder by the circulating pipe, and the heating circulating pump is set on the circulating pipe to make the washing water flow into the inner cylinder.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A heating circulation pump, comprising; the pump comprises a pump shell, wherein a pump cavity for water flow is arranged in the pump shell; the pump shell is provided with a driving device which is used for providing flow driving force for water flow in the pump cavity; the pump is characterized in that the pump shell is provided with an electromagnetic heating module, a metal piece which is contacted with water flowing through the pump cavity is arranged in the pump cavity, and the metal piece heats the water flowing through the pump cavity under the action of a high-frequency magnetic field generated by the electromagnetic heating module.
2. A heating and circulating pump according to claim 1, wherein the drive means comprises an impeller disposed in the pump chamber, the impeller being made of metal, being directly formed of metal, and/or being provided with metal.
3. The heating circulation pump of claim 2, wherein the impeller comprises a plurality of symmetrically arranged paddles extending radially from the central shaft, and the outer peripheral extension ends of the paddles are respectively provided with metal members.
4. A heating and circulating pump according to any one of claims 1 to 3, wherein metal members are mounted on the inner wall of the pump casing.
5. The heating circulation pump of claim 4, wherein the pump chamber is cylindrical, and a metal member extending in a circumferential direction of the cylindrical pump chamber is provided on a sidewall of the cylindrical pump chamber;
preferably, the metal member and the inner wall of the pump casing together form a smooth pump chamber peripheral wall.
6. The heating circulating pump of any one of claims 1 to 5, wherein the electromagnetic heating module is arranged on the outer wall of a pump shell, and the pump shell is made of a non-metallic material;
preferably, the electromagnetic heating module comprises an electromagnetic coil which is arranged outside the pump shell in a winding manner, and the electromagnetic coil is connected with the driver and is used for transmitting high-frequency alternating current to the electromagnetic coil so as to excite the electromagnetic coil to generate a high-frequency magnetic field;
further preferably, the electromagnetic coil is wound on a fixed support, and the fixed support is mounted on the outer wall of the pump shell.
7. A heating and circulating pump according to any one of claims 1 to 6, wherein the drive means comprises a motor connected to an impeller located within the pump chamber, the motor driving the impeller to rotate.
8. The heating circulating pump of any one of claims 1 to 7, wherein the pump chamber is cylindrical, and the opposite ends of the cylindrical pump chamber are respectively provided with an impeller and a water inlet, and the impeller rotates around the axial direction or the axial parallel line of the cylindrical pump chamber; and a water outlet is arranged on the side wall of the columnar pump cavity close to one end of the impeller and arranged along the tangential direction of the pump cavity.
9. A heating and circulating pump as claimed in any one of claims 4 to 8, wherein a plurality of metal members are mounted on the inner wall of the pump housing.
10. A washing machine equipped with the heating circulation pump of any one of claims 1 to 9.
CN201911226003.6A 2019-12-04 2019-12-04 Heating circulating pump and washing machine Pending CN112900019A (en)

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PCT/CN2020/131074 WO2021109897A1 (en) 2019-12-04 2020-11-24 Heating circulation pump and washing machine

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Citations (9)

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Publication number Priority date Publication date Assignee Title
CN101657137A (en) * 2007-04-12 2010-02-24 Bsh博世和西门子家用器具有限公司 Pump with heater
DE102012200398A1 (en) * 2012-01-12 2013-07-18 BSH Bosch und Siemens Hausgeräte GmbH Water-guiding household appliance has guide path, which extends such that individual sections of guide path possesses minimum distance from one another, where liquid is guided in body with component radial to body wall
KR20150073445A (en) * 2013-12-23 2015-07-01 동부대우전자 주식회사 Drum type washing machine
CN204889920U (en) * 2015-08-15 2015-12-23 杭州信多达电器有限公司 Novel electromagnetic heating dish washer
EP2985468A1 (en) * 2014-08-11 2016-02-17 BSH Hausgeräte GmbH Pump having a heating device comprising electric foil heating
CN105378292A (en) * 2013-06-19 2016-03-02 E.G.O.电气设备制造股份有限公司 Heating device for a pump, and pump
WO2018162211A1 (en) * 2017-03-07 2018-09-13 Arcelik Anonim Sirketi A flow-through type induction heater
CN109424588A (en) * 2017-08-25 2019-03-05 三花亚威科电器系统有限公司 Thin layer heating element for fluid pump
CN110529390A (en) * 2018-05-25 2019-12-03 高邮市环邮泵业有限公司 A kind of vertical centrifugal pump

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101657137A (en) * 2007-04-12 2010-02-24 Bsh博世和西门子家用器具有限公司 Pump with heater
DE102012200398A1 (en) * 2012-01-12 2013-07-18 BSH Bosch und Siemens Hausgeräte GmbH Water-guiding household appliance has guide path, which extends such that individual sections of guide path possesses minimum distance from one another, where liquid is guided in body with component radial to body wall
CN105378292A (en) * 2013-06-19 2016-03-02 E.G.O.电气设备制造股份有限公司 Heating device for a pump, and pump
KR20150073445A (en) * 2013-12-23 2015-07-01 동부대우전자 주식회사 Drum type washing machine
EP2985468A1 (en) * 2014-08-11 2016-02-17 BSH Hausgeräte GmbH Pump having a heating device comprising electric foil heating
CN204889920U (en) * 2015-08-15 2015-12-23 杭州信多达电器有限公司 Novel electromagnetic heating dish washer
WO2018162211A1 (en) * 2017-03-07 2018-09-13 Arcelik Anonim Sirketi A flow-through type induction heater
CN109424588A (en) * 2017-08-25 2019-03-05 三花亚威科电器系统有限公司 Thin layer heating element for fluid pump
CN110529390A (en) * 2018-05-25 2019-12-03 高邮市环邮泵业有限公司 A kind of vertical centrifugal pump

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