CN101725569A - Heat pump - Google Patents
Heat pump Download PDFInfo
- Publication number
- CN101725569A CN101725569A CN200810216983A CN200810216983A CN101725569A CN 101725569 A CN101725569 A CN 101725569A CN 200810216983 A CN200810216983 A CN 200810216983A CN 200810216983 A CN200810216983 A CN 200810216983A CN 101725569 A CN101725569 A CN 101725569A
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- China
- Prior art keywords
- heat pump
- thermal insulation
- protection cover
- insulation protection
- heating unit
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- 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.)
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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
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Abstract
The invention provides a heat pump comprising an inlet (1), a volute (2) and an outlet (3) which are successively communicated, wherein an impeller is installed in the volute (2). The heat pump also comprises heating equipment (5). The heating equipment (5) comprises a tubular heating body (51), a heat insulation protecting jacket (52) and a conductive terminal (53), wherein the heat insulation protecting jacket (52) surrounds the periphery of the tubular heating body (51), and the conductive terminal (53) is electrically connected with the tubular heating body (51) and passes through the heat insulation protecting jacket (52) to be connected with an external supply circuit; one end of the heating equipment (5) can be fixedly connected to the inlet (1) or the outlet (3); and the other end is used for connecting an external pipeline. The invention adopts the tubular heating body which is connected with the inlet of the volute and the external water pipe in series, which is convenient to heat flowing water, has large heating area and improves heating efficiency. In addition, the heating body is surrounded by the heat insulation protecting jacket so as to prevent the heat of the electrical heating body from emitting outwards, thus further improving heating efficiency.
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 fields 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.As Fig. 1 is the schematic representation of this heat pump, and Fig. 2 is the sectional view of this heat pump volute part.As depicted in figs. 1 and 2, heat pump comprises shell 19 ' and installation motor (not shown) in the enclosure, and the import 15 ' of heat pump locates to be equipped with impeller 16 ', and volute 23 ' is fixedly installed to shell 19 ' to cover impeller 16 '.Between impeller 16 ' and the volute 23 ' heating plant 17 ' is installed, heating plant 17 ' comprises heating unit 18 ', heating unit 18 ' with concentrically ringed mode be looped around impeller 16 ' around, the terminal 22 ' of heating unit 18 ' reach outside the shell 19 '.
Because heating unit 18 ' is wrapped between impeller 16 ' and the volute 23 ', therefore, the inner chamber that need increase volute 23 ' when product specification to be holding heating unit 18 ', thereby causes the volume of volute to increase, the materials increase.In addition, the big and heating unit 18 ' of the cavity volume of volute 23 ' only is installed in the inboard (with reference to figure 2) of volute 23 ', and heating area is limited, and the volute 23 ' heat that heating unit 18 ' produces that will be scattered and lost easily easily is scattered and lost outside pump, causes the efficiency of heating surface low.Have, the heating unit 18 ' of heating plant 17 ' is installed in the volute 23 ' again, complex structure, and brought difficulty for 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 safeguard.
Summary of the invention
The defective big at above-mentioned existing heat pump volute volume, that heating plant is difficult to safeguard the invention provides the heat pump that a kind of volute volume is little, heating plant is convenient to safeguard.
For realizing the object of the invention, a kind of heat pump provided by the invention comprises import, volute and the outlet that is communicated with in turn, in the described volute impeller is installed, wherein: described electric heating pump also comprises heating plant, described heating plant comprise tubular heating unit, be looped around described heating unit periphery the thermal insulation protection cover, with the conducting terminal that described heating unit is electrically connected, 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 used to connect outside pipeline.
In a preferred embodiment of the invention, described heating plant also comprises the soft pipe that is enclosed within the described thermal insulation protection cover outside, and an end of described soft pipe exceeds described thermal insulation protection cover to admit outside pipeline.
Preferably, described electric heating equipment by the end screw thread and described import or export tight interlock.
Preferably, the heating unit of described electric heating equipment, thermal insulation protection cover and power supply terminal are 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) and outside water pipe of heat pump, be convenient to the water that flows through is heated, also be convenient to change and safeguard heating plant; In addition, owing to need in fertile shell, heating plant be installed, so reduced the volume of volute.Further, can also prolong the length of tubular heating unit according to actual needs, with further increase heating area to improve rate of heating.In addition, the heating unit outer surrounding the thermal insulation protection cover, prevents that the heat of electric heating member is scattered and lost to the external world, has improved the efficiency of heating surface.
In order further to understand feature of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing, yet appended graphic only provide with reference to and the explanation usefulness, be not to be used for the present invention is limited.
Description of drawings
Below in conjunction with accompanying drawing,, will make technological scheme of the present invention and other beneficial effects apparent by the specific embodiment of the present invention is described in detail.In the accompanying drawing:
Fig. 1 is the schematic representation of existing heat pump;
Fig. 2 is the partial sectional view of the volute part of heat pump shown in Figure 1;
Fig. 3 and Fig. 4 are the volute part of heat pump of first embodiment of the invention and the schematic representation that electric heating equipment combines;
Fig. 5 to Fig. 7 is respectively that side schematic view, end view and the A-A of the electric heating equipment that adopts of first embodiment of the invention is to sectional view;
Fig. 8 and Fig. 9 are respectively the side schematic view and the sectional views of the heating unit that adopts of the present invention.
Side schematic view, end view and the A-A of the electric heating equipment that Figure 10 to Figure 12 difference second embodiment of the invention adopts are to sectional view;
Embodiment
Describe the present invention below in conjunction with accompanying drawing.
Fig. 3 and Fig. 4 are the volute part of heat pump of the present invention and the schematic representation that electric heating equipment combines.Because other parts of heat pump of the present invention are identical or similar with the counterpart of existing heat pump, therefore, other parts of Fig. 3 and the not shown heat pump of Fig. 4.
Shown in Fig. 3,4, heat pump provided by the invention comprises import 1, the volute 2 that is communicated with in turn and exports 3 that the impeller (not shown) is installed in the volute 2, and import 1 place is equipped with heating plant 5.Heating plant 5 is a tubulose, and an end is connected to import 1, and the other end is used to connect outside pipeline.The concrete structure of heating plant 5 such as Fig. 5 are to shown in Figure 7.
Fig. 5 to Fig. 7 is respectively that side schematic view, end view and the A-A of the electric heating equipment that adopts of the present invention is to sectional view.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 a tubular, and that this specification described " tubular " should be understood to include but not limited to is cylindric, ring-type, tubulose, cross section are the tubulose of oval or changeable shape.Heating unit 51 can be entwined by electric heating wire, also can be formed by stacking by some Electrothermal rings, and its concrete structure can be with reference to figure 8 and side schematic view and sectional view shown in Figure 9.Thermal insulation protection cover 52 is looped around heating unit 51 outsides, is used for preventing that the heat that heating unit 51 produces is scattered and lost to the external world, is used for also preventing that 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 inboard 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, and when connecting pipeline; with the inboard that the interface end of exterior line is inserted in soft pipe 54, use material such as circle line that soft pipe 54 tightens are got final product to this exterior line then.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 and outside pipeline of heat pump, and the inboard of motor heat equipment 5 is the heating unit 51 of tubular, and like this, outside water enters before the volute 2, with regard to heated object 51 heating.The axial length of heating unit 51 can be set as required, thereby can guarantee enough big heating area.Alternatively, the radial thickness that can increase heating unit 51 (for example, adopt thicker heating wire to construct heating unit 51) improve the heating power of heating unit 51, preferably, under the constant situation of the internal diameter that keeps the tubular heating plant, increase the radial thickness of heating unit 51.
Those of skill in the art recognize that above-mentioned electric heating equipment 5 also can be serially connected between the pipeline of heating delivery side of pump 3 and outside.But generally speaking, the internal diameter of the import of heat pump all is the internal diameter greater than outlet, so first-selected heating plant is installed in import.Certainly, also can in import and outlet heating plant be installed simultaneously as required.
In a kind of scheme, one end of heating unit 51 has outside thread 511, and the inboard of the import 1 of heat pump has the internal thread of coupling with tight interlock outside thread 511, the inboard internal thread of import 1 that like this, can be by the outside thread on the heating unit 51 511, heat pump is fixed to electric heating equipment 5 import 1 of heat pump.Preferably, thermal insulation protection cover 52 does not cover this outside thread 511, but extends to the place that joins with outside thread 511, and an end of soft pipe 54 also can extend to the place that joins with outside thread 511.In this programme, can dismantle electric heating equipment 5 down from heat pump easily, therefore, be convenient to maintenance, repair, change electric heating equipment.
As a kind of alternative; 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, can overlap 52 outside thread by thermal insulation protection, the internal thread of heat pump import 1 is fixedly attached to electric heating equipment 5 import 1 of heat pump.In this alternative, heating unit 51 does not directly contact with volute 2, has avoided volute 2 that the heat that heating unit 51 produces is scattered and lost in the external world.
As another kind of alternative; the length of thermal insulation protection cover 52 is greater than the length of heating unit 51; thermal insulation protection cover 52 inboards, end that exceed the part of heating unit 51 have internal thread, and the outside of import 1 has the outside thread 11 of coupling with the described internal thread of tight interlock.Because the screw thread that import had of most volute is outside thread normally, therefore, this alternative can be utilized existing volute, does not need existing volute is changed, and has saved cost.
Those skilled in the art should recognize; according to instruction of the present invention; can also adopt other similar or methods of being equal to that the electric heating equipment 5 of tubulose is connected to the import 1 of volute 2, still, these be equal to or similarly scheme still fall into protection scope of the present invention.
In addition, any both or the three of above-mentioned heating unit 51, thermal insulation protection cover 52, soft pipe 54 can be fixed as one.For example, thermal insulation protection cover 52 is the heatpiston, and during fabrication, the mode that can pass through insert moulding (insert molding) forms thermal insulation protection cover 52 on heating unit 51.And soft pipe 54 can be a rubber pipe, is fixed on the thermal insulation protection cover 52 by the mode of knowing in the industry in the time of can during fabrication or using.
Figure 10 to Figure 12 is respectively that side schematic view, end view and the A-A of the electric heating equipment of second embodiment of the invention is to sectional view.The difference of second embodiment's the electric heating equipment and first embodiment's electric heating equipment is: do not comprise soft pipe (as mentioned above, the main effect of soft pipe is the convenient pipeline that connects the heat pump outside) among second embodiment.In this second embodiment, can adopt the various pipeline connecting methods known in the industry that the pipeline of outside is connected in the electric heating member 5, these methods include but not limited to:
(1) external diameter of the external diameter of thermal insulation protection cover 52 and exterior line is identical, adds seal ring or stuffing box gland in both joints;
(2) and scheme (1) similar, but the jointing of the external diameter of thermal insulation protection cover 52 or exterior line all is 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 changes and distortion according to technological scheme of the present invention and technical conceive, and all these changes and distortion all should belong to the protection domain of claim of the present invention.
Claims (10)
1. a heat pump comprises the import (1), volute (2) and the outlet (3) that are communicated with in turn, and described volute is equipped with impeller in (2), it is characterized in that:
Described heat pump also comprises heating plant (5), described heating plant (5) comprises the heating unit (51) of tubular, the thermal insulation protection cover (52) that is looped around described heating unit (51) periphery, the conducting terminal (53) that is electrically connected with described heating unit (51), and 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), and the other end is used to connect outside pipeline.
2. heat pump according to claim 1 is characterized in that:
One end of described heating unit (51) has outside thread (511), and described thermal insulation protection cover (52) is enclosed within the outer surface except described outside thread (511) of described heating unit (51);
The inboard of described import (1) or outlet (3) has the internal thread of coupling with the described outside thread of tight interlock (511).
3. 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 inboard of described import (1) or outlet (3) has the internal thread of coupling with the described outside thread of tight interlock.
4. 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 with the described internal thread of tight interlock.
5. according to any described heat pump in the claim 1 to 4, it is characterized in that described heating unit (51), thermal insulation protection cover (52) and power supply terminal (53) are fixed as one.
6. according to any described heat pump in the claim 1 to 4; it is characterized in that; described heating plant (5) also comprises the soft pipe (54) that is enclosed within described thermal insulation protection cover (52) periphery, and an end of described soft pipe (54) exceeds described thermal insulation protection cover (52) to admit outside pipeline.
7. heat pump according to claim 6 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).
8. heat pump according to claim 6 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.
9. according to claim 7 or 8 described heat pumps, it is characterized in that described soft pipe (54) is a rubber pipe.
10. according to any described heat pump in the claim 1 to 4, it is characterized in that the internal diameter of described import (1) is greater than the internal diameter of described 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 true CN101725569A (en) | 2010-06-09 |
| CN101725569B 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) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748329A (en) * | 2011-04-15 | 2012-10-24 | 德昌电机(深圳)有限公司 | Heat pump |
| CN103089710A (en) * | 2011-10-28 | 2013-05-08 | 德昌电机(深圳)有限公司 | Heating pump |
| CN104736851A (en) * | 2012-10-08 | 2015-06-24 | 依必安-派特穆尔芬根股份有限两合公司 | Wall ring with wall ring heating element for axial fans |
| WO2015161685A1 (en) * | 2014-04-24 | 2015-10-29 | Foshan Shunde Midea Washing Appliances Mfg. Co., Ltd. | Heat pump and diswasher comprising the same |
| CN105090127A (en) * | 2014-05-20 | 2015-11-25 | 德昌电机(深圳)有限公司 | Heating pump |
| 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 |
| CN108888221A (en) * | 2018-05-30 | 2018-11-27 | 佛山市威灵洗涤电机制造有限公司 | Integrated heating pump and 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 |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748329A (en) * | 2011-04-15 | 2012-10-24 | 德昌电机(深圳)有限公司 | Heat pump |
| 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 |
| CN103089710A (en) * | 2011-10-28 | 2013-05-08 | 德昌电机(深圳)有限公司 | Heating pump |
| CN104736851A (en) * | 2012-10-08 | 2015-06-24 | 依必安-派特穆尔芬根股份有限两合公司 | Wall ring with wall ring heating element for axial fans |
| WO2015161685A1 (en) * | 2014-04-24 | 2015-10-29 | Foshan Shunde Midea Washing Appliances Mfg. Co., Ltd. | Heat pump and diswasher comprising the same |
| US10602905B2 (en) | 2014-04-24 | 2020-03-31 | Foshan Shunde Midea Washing Appliances Mfg. Co. Lt | Heat pump and dishwasher comprising the same |
| CN105090127A (en) * | 2014-05-20 | 2015-11-25 | 德昌电机(深圳)有限公司 | Heating pump |
| CN105090127B (en) * | 2014-05-20 | 2019-10-11 | 德昌电机(深圳)有限公司 | Heat pump |
| CN108888221A (en) * | 2018-05-30 | 2018-11-27 | 佛山市威灵洗涤电机制造有限公司 | Integrated heating pump and dish-washing machine |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101725569B (en) | 2016-01-20 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20181028 |