CN101725569B - Heat pump - Google Patents
Heat pump Download PDFInfo
- Publication number
- CN101725569B CN101725569B CN200810216983.7A CN200810216983A CN101725569B CN 101725569 B CN101725569 B CN 101725569B CN 200810216983 A CN200810216983 A CN 200810216983A CN 101725569 B CN101725569 B CN 101725569B
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- China
- Prior art keywords
- thermal insulation
- protection cover
- insulation protection
- heating unit
- import
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Abstract
The invention provides a kind of heat pump, comprise be communicated with in turn import (1), volute (2) and outlet (3), described volute is provided with impeller in (2), also comprise heating plant (5), the heating unit (51) that this heating plant (5) comprises tubular, the conducting terminal (53) being looped around the peripheral thermal insulation protection cover (52) of heating unit (51), being electrically connected with heating unit (51), conducting terminal (53) penetrates described thermal insulation protection cover (52) to connect outside power supply circuits; One end of heating plant (5) can be fixedly attached to described import (1) or described outlet (3), and the other end is for connecting outside pipeline.The present invention adopts the heating unit of tubular, the serial connection import of volute of this heating unit and the water pipe of outside, and be convenient to the water heating to flowing through, heating area is large, improves the efficiency of heating surface.In addition, round thermal insulation protection cover outside heating unit, prevent the heat of electric heating member to be scattered and lost to the external world, further increase the efficiency of heating surface.
Description
Technical field
The present invention relates to a kind of electric pump, more specifically, relate to a kind of heat pump.
Background technique
Heat pump is a kind of electric pump with heating function, is widely applied to the field such as dishwasher, washing machine.
The applying date is that the European patent application EP 1047334 on October 30th, 1999 discloses a kind of heat pump.If Fig. 1 is the schematic diagram of this heat pump, Fig. 2 is the sectional view of this heat pump volute part.As depicted in figs. 1 and 2, the motor (not shown) that heat pump comprises shell 19 ' and installs in the enclosure, the import 15 ' place of heat pump is provided with impeller 16 ', and volute 23 ' is fixedly installed to shell 19 ' to cover impeller 16 '.Be provided with heating plant 17 ' between impeller 16 ' and volute 23 ', heating plant 17 ' comprises heating unit 18 ', and heating unit 18 ' is looped around impeller 16 ' around in concentric circles, and the terminal 22 ' of heating unit 18 ' reach shell 19 ' outward.
Because heating unit 18 ' is wrapped between impeller 16 ' and volute 23 ', therefore, need when product specification to increase the inner chamber of volute 23 ' to hold heating unit 18 ', thus cause that the volume of volute increases, materials increase.In addition, the comparatively large and heating unit 18 ' of the cavity volume of volute 23 ' is only arranged on the inner side (with reference to figure 2) of volute 23 ', heating area is limited, and the heat that the heating unit 18 ' that is easily scattered and lost produces easily is scattered and lost to outside pump by volute 23 ', causes the efficiency of heating surface low.Further, the heating unit 18 ' of heating plant 17 ' is arranged in volute 23 ', complex structure, and bring difficulty to later maintenance, replacing heating plant 17 '.
Therefore, be necessary to invent the heat pump that a kind of volute volume is little, heating plant is convenient to maintenance.
Summary of the invention
, heating plant large for above-mentioned existing heat pump volute volume is difficult to the defect safeguarded, the invention provides the heat pump that a kind of volute volume is little, heating plant is convenient to maintenance.
For realizing the object of the invention, a kind of heat pump provided by the invention comprise be communicated with in turn import, volute and outlet, in described volute, impeller is installed, wherein: described electric heating pump also comprises heating plant, described heating plant comprises the heating unit of tubular, the thermal insulation protection cover being looped around described heating unit periphery, the conducting terminal that is electrically connected with described heating unit, and described conducting terminal penetrates described thermal insulation protection cover to connect outside power supply circuits; One end of described heating plant is connected to described import or described outlet, and the other end is for connecting outside pipeline.
In a preferred embodiment of the invention, described heating plant also comprises the soft pipe being enclosed within described thermal insulation protection cover outside, and one end of described soft pipe exceeds described thermal insulation protection cover to receive outside pipeline.
Preferably, described electric heating equipment is closely engaged by the screw thread of end and described import or export.
Preferably, described electric heating equipment heating unit, thermal insulation protection cover and power supply terminal be fixed as one.
The beneficial effect that illustrated embodiment of the present invention has: heating plant adopts the heating unit of tubular, the heating unit of this tubulose is serially connected between the mouth of pipe (import or outlet) of heat pump and the water pipe of outside, the water be convenient to flowing through heats, and is also convenient to change and safeguard heating plant; In addition, owing to not needing to install heating plant in fertile shell, so reduce the volume of volute.Further, the length of tubular heating unit can also be extended according to actual needs, to increase heating area further to improve rate of heating.In addition, round thermal insulation protection cover outside heating unit, prevent the heat of electric heating member to be scattered and lost to the external world, improve the efficiency of heating surface.
In order to further understand feature of the present invention and technology contents, refer to following detailed description for the present invention and accompanying drawing, but institute's accompanying drawings only provides reference and explanation use, is not used for being limited the present invention.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, by the specific embodiment of the present invention describe in detail, will make technological scheme of the present invention and other beneficial effects apparent.In accompanying drawing:
Fig. 1 is the schematic diagram of existing heat pump;
Fig. 2 is the partial sectional view of the volute part of the heat pump shown in Fig. 1;
Fig. 3 and Fig. 4 is the schematic diagram that the volute part of the heat pump of first embodiment of the invention and electric heating equipment combine;
Fig. 5 to Fig. 7 is that the first embodiment of the invention side schematic view of electric heating equipment, end view and the A-A that adopt are to sectional view respectively;
Fig. 8 and Fig. 9 is side schematic view and the sectional view of the heating unit that the present invention adopts respectively.
Figure 10 to Figure 12 respectively the side schematic view of the electric heating equipment that adopts of second embodiment of the invention, end view and A-A to sectional view;
Embodiment
Describe the present invention below in conjunction with accompanying drawing.
Fig. 3 and Fig. 4 is the schematic diagram that the volute part of heat pump of the present invention and electric heating equipment combine.Because other parts of heat pump of the present invention are identical with the corresponding part of existing heat pump or similar, therefore, other parts of the not shown heat pump of Fig. 3 and Fig. 4.
As shown in Figure 3,4, heat pump provided by the invention comprise be communicated with in turn import 1, volute 2 and outlet 3, be provided with impeller (not shown) in volute 2, import 1 place is provided with heating plant 5.Heating plant 5 is tubulose, and one end is connected to import 1, and the other end is for connecting outside pipeline.The concrete structure of heating plant 5 as shown in Figures 5 to 7.
Fig. 5 to Fig. 7 is that the side schematic view of the electric heating equipment that the present invention adopts, end view and A-A are to sectional view respectively.As shown in the figure, heating plant 5 comprises heating unit 51, thermal insulation protection cover 52, soft pipe 54.Wherein, heating unit 51 is tubular, and " tubular " described in this specification should be understood to include but not limited to that cylindrical shape, ring-type, tubulose, cross section are tubulose that is oval or shape changeable.Heating unit 51 can be formed by heating wire winding, also can be formed by stacking by some Electrothermal rings, and its concrete structure can with reference to the side schematic view shown in figure 8 and Fig. 9 and sectional view.Thermal insulation protection cover 52 is looped around outside heating unit 51, and the heat being used for preventing heating unit 51 from producing is scattered and lost to the external world, is also used for preventing the heat of heating unit 51 from causing damage to external object.Preferably, thermal insulation protection cover 52 is enclosed within the outside of heating unit 51, and the inner side of thermal insulation protection cover 52 abuts in the outside of heating unit 51 to save material and space.Soft pipe 54 is enclosed within the outside of thermal insulation protection cover 52; one end exceeds thermal insulation protection cover 52 so that connect outside pipeline, particularly, when connecting pipeline; the interface end of exterior line is inserted in the inner side of soft pipe 54, then uses the materials such as circle line by soft pipe 54 tighten to this exterior line.Heating unit 51 also comprises conducting terminal 53, and conducting terminal 53 penetrates thermal insulation protection cover 52, soft pipe 54 to connect outside power supply circuits.In the present embodiment, electric heating equipment 5 is serially connected between the import 1 of heat pump and the pipeline of outside, and the inner side of motor heat equipment 5 is the heating unit 51 of tubular, and like this, outside water heats with regard to heated object 51 before entering volute 2.The axial length of heating unit 51 can be set as required, thus can enough large heating area be ensured.Alternatively, the radial thickness of heating unit 51 can be increased (such as, thicker heating wire is adopted to construct heating unit 51) improve the heating power of heating unit 51, preferably, increase the radial thickness of heating unit 51 when keeping the internal diameter of tubular heating plant constant.
Those of skill in the art recognize that above-mentioned electric heating equipment 5 also can be serially connected between heating delivery side of pump 3 and the pipeline of outside.But generally speaking, the internal diameter of the import of heat pump is all the internal diameter being greater than outlet, so heating plant is arranged on import by first-selection.Certainly, also in import and outlet, heating plant can be installed as required simultaneously.
In a kind of scheme, one end of heating unit 51 has outside thread 511, and the inner side of the import 1 of heat pump has the internal thread of coupling to be closely engaged outside thread 511, like this, by the inner side internal thread of the import 1 of the outside thread 511 on heating unit 51, heat pump, electric heating equipment 5 is fixed to the import 1 of heat pump.Preferably, thermal insulation protection cover 52 does not cover this outside thread 511, but extends to the place connected with outside thread 511, and one end of soft pipe 54 also can extend to the place connected with outside thread 511.In this programme, easily from the lower electric heating equipment 5 of heat pump dismounting, therefore, maintenance, repair can be convenient to, change electric heating equipment.
Alternatively; thermal insulation protection cover 52 covers all side surfaces of heating unit 51; an end of thermal insulation protection cover 52 is provided with outside thread, by the thermal insulation protection cover outside thread of 52, the internal thread of heat pump import 1, electric heating equipment 5 is fixedly attached to the import 1 of heat pump.In this alternative, heating unit 51 does not directly contact with volute 2, avoids volute 2 and is scattered and lost the heat that heating unit 51 produces in the external world.
Alternatively; the length of thermal insulation protection cover 52 is greater than the length of heating unit 51; the tip inside that thermal insulation protection cover 52 exceeds the part of heating unit 51 has internal thread, and the outside of import 1 has the outside thread 11 of coupling to be closely engaged described internal thread.Due to the screw thread normally outside thread that the import of most volute has, therefore, this alternative can utilize existing volute, does not need to change existing volute, has saved cost.
Those skilled in the art should recognize; according to instruction of the present invention; can also adopt other similar or equivalent methods that the electric heating equipment 5 of tubulose is connected to the import 1 of volute 2, but these are equal to or similar scheme still falls into protection scope of the present invention.
In addition, both or the three arbitrarily of above-mentioned heating unit 51, thermal insulation protection cover 52, soft pipe 54 can be fixed as one.Such as, thermal insulation protection cover 52 is heatpiston, and during fabrication, the mode by insert-molding (insertmolding) forms thermal insulation protection cover 52 on heating unit 51.And soft pipe 54 can be rubber pipe, can be fixed on thermal insulation protection cover 52 by the mode known in the industry during fabrication or when using.
Figure 10 to Figure 12 is that the side schematic view of the electric heating equipment of second embodiment of the invention, end view and A-A are to sectional view respectively.The difference of the electric heating equipment of the second embodiment and the electric heating equipment of the first embodiment is: do not comprise soft pipe (as mentioned above, the Main Function of soft pipe is the convenient pipeline connecting heat pump outside) in the second embodiment.In this second embodiment, the various pipeline connecting methods known in the industry can be adopted to be connected in electric heating member 5 by the pipeline of outside, and these methods include but not limited to:
(1) external diameter of thermal insulation protection cover 52 is identical with the external diameter of exterior line, adds seal ring or stuffing box gland in both joints;
(2) and scheme (1) similar, but the jointing of external diameter of thermal insulation protection cover 52 or exterior line is all provided with outside thread to connect seal ring or stuffing box gland.
The above, for the person of ordinary skill of the art, can make other various corresponding change and distortion according to technological scheme of the present invention and technical conceive, and all these change and be out of shape the protection domain that all should belong to claim of the present invention.
Claims (10)
1. a heat pump, comprise be communicated with in turn import (1), volute (2) and outlet (3), described volute is provided with impeller in (2), it is characterized in that:
Described heat pump also comprises heating plant (5), the heating unit (51) that described heating plant (5) comprises tubular, the conducting terminal (53) being looped around the peripheral thermal insulation protection cover (52) of described heating unit (51), being electrically connected with described heating unit (51), described conducting terminal (53) penetrates described thermal insulation protection cover (52) to connect outside power supply circuits;
One end of described heating plant (5) is connected to described import (1) or described outlet (3), the other end is for connecting outside pipeline, fluid flows through the external pipe of entrance point successively, cylindrical inner space and the import (1) of heating plant (5) enter volute (2) and pump volute through impeller, or flow through outlet (3) successively from volute (2), the cylindrical inner space of heating plant (5) and the external pipe of outlet end, described thermal insulation protection cover (52) establishes outside thread or internal thread, described import (1) or outlet (3) are provided with the internal thread or outside thread that mate with the outside thread of described thermal insulation protection cover (52) or internal thread, described heating plant (5) to be removably connected to described import (1) or outlet (3).
2. heat pump according to claim 1; it is characterized in that; described thermal insulation protection cover (52) covers all outer surfaces of described electric heating member (51); one end of described thermal insulation protection cover (52) has outside thread, and the inner side of described import (1) or outlet (3) has the internal thread of coupling to be closely engaged described outside thread.
3. heat pump according to claim 1; it is characterized in that; the length of described thermal insulation protection cover (52) is greater than the length of described heating unit (51); the end that described thermal insulation protection cover (52) exceeds the part of described heating unit (51) has internal thread, and the outside of described import (1) or outlet (3) has the outside thread (11) of coupling to be closely engaged described internal thread.
4. heat pump as claimed in any of claims 1 to 3, is characterized in that, described heating unit (51), thermal insulation protection cover (52) and power supply terminal (53) are fixed as one.
5. heat pump as claimed in any of claims 1 to 3; it is characterized in that; described heating plant (5) also comprises the soft pipe (54) being enclosed within described thermal insulation protection cover (52) periphery, and one end of described soft pipe (54) exceeds described thermal insulation protection cover (52) to receive outside pipeline.
6. heat pump according to claim 5; it is characterized in that; the other end of described soft pipe (54) flushes with the end of described thermal insulation protection cover (52), and described power supply terminal (53) radially penetrates described soft pipe (54).
7. heat pump according to claim 5, is characterized in that, described heating unit (51), thermal insulation protection cover (52), power supply terminal (53) and soft pipe (54) are fixed as one.
8. heat pump according to claim 7, is characterized in that, described soft pipe (54) is rubber pipe.
9. heat pump as claimed in any of claims 1 to 3, is characterized in that, the internal diameter of described import (1) is greater than the internal diameter of described outlet (3).
10. a heat pump, comprise be communicated with in turn import (1), volute (2) and outlet (3), described volute is provided with impeller in (2), it is characterized in that:
Described heat pump also comprises heating plant (5), the heating unit (51) that described heating plant (5) comprises tubular, the conducting terminal (53) being looped around the peripheral thermal insulation protection cover (52) of described heating unit (51), being electrically connected with described heating unit (51), described conducting terminal (53) penetrates described thermal insulation protection cover (52) to connect outside power supply circuits;
One end of described heating plant (5) is connected to described import (1) or described outlet (3), the other end is for connecting outside pipeline, fluid flows through the external pipe of entrance point successively, cylindrical inner space and the import (1) of heating plant (5) enter volute (2) and pump volute through impeller, or flow through outlet (3) successively from volute (2), the cylindrical inner space of heating plant (5) and the external pipe of outlet end, one end of described heating unit (51) has outside thread (511), described thermal insulation protection cover (52) is enclosed within the outer surface except described outside thread (511) of described heating unit (51),
The inner side of described import (1) or outlet (3) has the internal thread of coupling to be closely engaged described outside thread (511), described heating plant (5) to be removably connected to described import (1) or outlet (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810216983.7A CN101725569B (en) | 2008-10-28 | 2008-10-28 | Heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810216983.7A CN101725569B (en) | 2008-10-28 | 2008-10-28 | Heat pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101725569A CN101725569A (en) | 2010-06-09 |
| CN101725569B true CN101725569B (en) | 2016-01-20 |
Family
ID=42446977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810216983.7A Expired - Fee Related CN101725569B (en) | 2008-10-28 | 2008-10-28 | Heat pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101725569B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748329B (en) * | 2011-04-15 | 2017-02-22 | 德昌电机(深圳)有限公司 | Heat pump |
| CN103089710B (en) * | 2011-10-28 | 2016-07-06 | 德昌电机(深圳)有限公司 | Heat pump |
| DE102012109544A1 (en) * | 2012-10-08 | 2014-04-10 | Ebm-Papst Mulfingen Gmbh & Co. Kg | "Wall ring with wall ring heater for axial fans" |
| EP3134653B1 (en) * | 2014-04-24 | 2024-03-06 | Foshan Shunde Midea Washing Appliances Mfg. Co., Ltd. | Heat pump and dishwasher comprising the same |
| CN105090127B (en) * | 2014-05-20 | 2019-10-11 | 德昌电机(深圳)有限公司 | Heat pump |
| CN108888221B (en) * | 2018-05-30 | 2020-07-14 | 佛山市威灵洗涤电机制造有限公司 | Integrated heating pump and dish washing machine |
| CN108843587A (en) * | 2018-08-27 | 2018-11-20 | 宁波佳音机电科技股份有限公司 | Heat pump and dish-washing machine for dish-washing machine |
| CN112575548A (en) * | 2019-09-30 | 2021-03-30 | 佛山市顺德海尔电器有限公司 | Water pump and washing machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4580421A (en) * | 1983-12-06 | 1986-04-08 | Industri Zanussi S.P.A. | Laundry washing machine |
| DE3709272A1 (en) * | 1987-03-20 | 1988-09-29 | Licentia Gmbh | Drum-type washing machine |
| DE10142525A1 (en) * | 2001-08-30 | 2003-03-27 | Miele & Cie | Rinse water circulation pump of dishwashing machine has contained heating element and safety protector to raise temperature of rinse water |
| EP1571347A2 (en) * | 2004-03-05 | 2005-09-07 | AWECO APPLIANCE SYSTEMS GmbH & Co. KG | Centrigual pump with integral heating element |
| CN201027658Y (en) * | 2007-03-21 | 2008-02-27 | 雷震霆 | Constant-temperature water-heating pump |
-
2008
- 2008-10-28 CN CN200810216983.7A patent/CN101725569B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4580421A (en) * | 1983-12-06 | 1986-04-08 | Industri Zanussi S.P.A. | Laundry washing machine |
| DE3709272A1 (en) * | 1987-03-20 | 1988-09-29 | Licentia Gmbh | Drum-type washing machine |
| DE10142525A1 (en) * | 2001-08-30 | 2003-03-27 | Miele & Cie | Rinse water circulation pump of dishwashing machine has contained heating element and safety protector to raise temperature of rinse water |
| EP1571347A2 (en) * | 2004-03-05 | 2005-09-07 | AWECO APPLIANCE SYSTEMS GmbH & Co. KG | Centrigual pump with integral heating element |
| CN201027658Y (en) * | 2007-03-21 | 2008-02-27 | 雷震霆 | Constant-temperature water-heating pump |
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| Publication number | Publication date |
|---|---|
| CN101725569A (en) | 2010-06-09 |
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Granted publication date: 20160120 Termination date: 20181028 |
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| CF01 | Termination of patent right due to non-payment of annual fee |