CN102252413A - Liquid heating unit and manufacture process thereof - Google Patents

Liquid heating unit and manufacture process thereof Download PDF

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Publication number
CN102252413A
CN102252413A CN2010101805245A CN201010180524A CN102252413A CN 102252413 A CN102252413 A CN 102252413A CN 2010101805245 A CN2010101805245 A CN 2010101805245A CN 201010180524 A CN201010180524 A CN 201010180524A CN 102252413 A CN102252413 A CN 102252413A
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China
Prior art keywords
fluid passage
liquid
upper substrate
passage groove
infrabasal plate
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CN2010101805245A
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Chinese (zh)
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CN102252413B (en
Inventor
王梓宇
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NINGBO WANHONG TECHNOLOGY CO., LTD.
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NINGBO WAHO ELECTRICAL TECHNOLOGY Co Ltd
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Abstract

The invention relates to a liquid heating unit and a manufacture process thereof, and the liquid heating unit is characterized by comprising an upper base plate and a lower base plate, wherein the upper base plate and the lower base plate are hermetically molded into an integral part, and a sinuous liquid circulation channel is formed between the upper base plate and the lower base plate; and at least the upper base plate between the upper base plate and the lower base plate is made of a heat conduction material, and an electrothermal film is plated on at least the part, corresponding to the liquid circulation channel, of the outer surface of the upper base plate. Compare with the prior art, the liquid heating unit provided by the invention has the advantages that the upper base plate and the lower base plate are hermetically molded into an integral part, and the liquid circulation channel is directly formed between the upper base plate and the base plate, therefore the liquid heating unit does not subjected to deformation even if the liquid heating unit is used for long term, thus the liquid can circulate according to the preset liquid circulation channel all the time, and the liquid heating unit can not be burnt out; and the upper base plate and the lower base plate are made of stainless steels, thus no peculiar smell is generated after the liquid passes through the liquid circulation channel.

Description

A kind of liquid-heating unit and manufacture craft thereof
Technical field
The present invention relates to a kind of heating power supply, particularly relate to a kind of liquid-heating unit and manufacture craft thereof that is used for Fast Heating liquid.
Background technology
Water fountain, water heater etc. are given in the liquid heater, and liquid-heating unit is the parts of most critical.In order to reduce given liquid was heated to the required time of fixed temperature, the manufacturer of liquid heating has developed has heteroid liquid-heating unit.
For example publication number is that the Chinese utility model patent of CN 201096399 (patent No. is: ZL 200720177939.0) has just been announced a kind of liquid heating, it comprises the tubulose calandria that is closed with inert gas and electric heater unit, electrode passes the calandria two ends and is connected on the power supply, interior pipe and the nestable formula double-layer cavity of outer tube pipe that calandria is with sealing outward constitute the calandria assembly, be full of liquid in every layer of tube chamber, outer tube and interior pipe respectively are provided with intake-outlet respectively near two-end part, be arranged in parallel by several described calandria assemblies, and the outer tube intake-outlet connects, interior pipe intake-outlet connects, end calandria assembly water inlet be connected with delivery port constitute the liquid heating of internal run-through circulation, be to utilize the outer tube of heating tube assembly and the liquid heat-exchange in the interior pipe, the heat that liquid in the interior pipe is diffused out carries out preheating to the liquid that newly enters, the heat of diffusion is absorbed, reach the effect that makes full use of energy, improved thermal conversion efficiency.But the liquid heating of this structure, for thermal conversion efficiency is provided, the overall volume of its liquid-heating unit is bigger, and the liquid communication passage all is to adopt heating tube to form, the folding modes of emplacement of pipe and outer tube in adopting, the interior pipe that multilayer folding is placed and the volume of outer tube are totally bigger, are not suitable for the liquid heating of small-sized volume.
Also for example publication number is that (application number is CN 101366601: disclosed liquid-heating unit in the Chinese invention patent 200810121103.8) " heating mechanism of instantaneously heated type drinking machine ", be to connect and compose by one group of heating pipe who is connected in series connection mutually, the heater of connection parallel with one another is set respectively in the heating pipe, and adjacent heating pipe's top delivery port is connected with bottom water inlet pipeline.The liquid-heating unit of this structure, the circulation passage of liquid still is made up of the heating pipe, heater then is placed on heating pipe inside, needs to be connected in series mutually to be communicated with the length that many group heating pipes could increase the liquid communication passage, and overall structure also is quite clumsy.
For this reason, this case applicant exploitation has also been applied for a kind of on the basis that increases the liquid communication passage length, do not increase the Chinese invention patent of the liquid-heating unit of whole liquid heating unit volume, its publication number is that (application number is CN 101625148: 200910100550.X), this liquid-heating unit comprises the tabular heater, form the deflector that the edge is tightly connected with one of them side of tabular heater, be formed with circuitous liquid communication passage between deflector and the tabular heater, and have inlet and liquid outlet on the described deflector, be connected with the liquid feeding end and the outlet end of described liquid communication passage respectively, it is characterized in that: the edge and the central part of described inlet and liquid outlet office deflector, and described liquid communication passage is arranged twist.The liquid-heating unit of this structure is by being arranged to spirality with the liquid communication passage between deflector and the tabular heater, can increase the time that liquid stops in circulating in the liquid communication passage, just increased the heated time of liquid, thereby liquid fully is heated in the liquid communication passage, thermal conversion efficiency is than common linear liquid communication passage height, and particularly importantly, the volume of whole liquid heating unit does not have to increase because having increased the degree of liquid communication passage, under the tabular heater of same power, adopt this spiral liquid communication logical than adopting linear liquid communication passage, its thermal conversion efficiency is significantly improved.But this liquid heating is single in use, be to assemble by tabular heater and deflector, deflector adopts elastic rubber material to make, after having grown service time, one side tabular heater easy deformation, thereby cause the liquid that can not in the deflector to circulate easily, burn machine easily according to predetermined liquid communication passage; On the other hand, after service time was long, the molecule in the elastic rubber material of deflector can break up out, causes flavoursome generation in the liquid.
Summary of the invention
First technical problem to be solved by this invention be at above-mentioned prior art provide that a kind of long-term use can be out of shape yet, liquid all the time can be according to the liquid-heating unit of predetermined liquid communication passage circulation.
Second technical problem to be solved by this invention provides a kind of manufacture craft of aforesaid liquid heating unit.
The present invention solves the technical scheme that above-mentioned first technical problem adopts: this liquid-heating unit, it is characterized in that: comprise upper substrate and infrabasal plate, upper substrate and infrabasal plate sealing moulding are integral piece, and be formed with circuitous liquid communication passage between upper substrate and the infrabasal plate, in upper substrate and the infrabasal plate at least upper substrate be that heat-conducting is made, be coated with the Electric radiant Heating Film that contains insulating barrier with the corresponding position of described liquid communication passage at least on the outer surface of described upper substrate.
Because upper substrate and infrabasal plate sealing moulding are integral piece, and the liquid communication passage is molded directly between upper substrate and the infrabasal plate, even if therefore long-term the use, the shape of liquid communication passage can be out of shape yet, therefore liquid can or not burnt machine according to predetermined liquid communication passage circulation all the time; Preferably, upper substrate and infrabasal plate adopt stainless steel to make, and liquid can not produce peculiar smell after circulating by the liquid communication passage like this.
The aforesaid liquid circulation passage can form in the following manner: form circuitous last fluid passage groove on the described upper substrate, also form the shape following fluid passage groove consistent on the described infrabasal plate with last fluid passage groove, the degree of depth of last fluid passage groove is greater than the degree of depth of following fluid passage groove, and upper substrate and infrabasal plate are when sealing moulding, following fluid passage groove sealing is embedded in last fluid passage groove, and the gap between last fluid passage groove and the following fluid passage groove is described liquid communication passage.
The aforesaid liquid circulation passage can also form in the following manner: form the fluid passage groove on the described upper substrate, described infrabasal plate is dull and stereotyped, and the gap that surrounds between the infrabasal plate of last fluid passage groove and flat board is described liquid communication passage.
Described bottom of going up the fluid passage groove is the plane, and the described bottom of fluid passage groove down also is the plane, thus the cross section of described liquid communication passage is " mouth " font.
In order to increase the time that liquid stops in circulating in the liquid communication passage, just increase the heated time of liquid, thereby liquid fully is heated in the liquid communication passage, improve thermal conversion efficiency, described circuitous liquid communication passage is continuous bow font and comes circular coiling to arrange or the helix shape of arranging twist or be square.
Preferably, the position of plating Electric radiant Heating Film adopts extrusion process to be pressed into the plane on the outer surface of described upper substrate
Described upper substrate or infrabasal plate are provided with inlet and the liquid outlet with described liquid communication channel connection.
The present invention solves above-mentioned second technical scheme that technical problem adopted: the manufacture craft of aforesaid liquid heating unit is characterized in that: may further comprise the steps:
Step 1, on the upper substrate of steel with the extrusion process moulding circuitous on the fluid passage groove;
Step 2, on the shape infrabasal plate consistent with upper substrate with the following fluid passage groove of extrusion process forming shape with last fluid passage groove unanimity, the degree of depth of following fluid passage groove is less than the degree of depth of last fluid passage groove;
Step 3, be integral piece, and when upper substrate and infrabasal plate sealing moulding, the sealing of fluid passage groove be embedded in last fluid passage groove upper substrate infrabasal plate sealing moulding;
Step 4, on the outer surface of upper substrate with the corresponding position of last fluid passage bottom portion of groove plate dielectric film, plate Electric radiant Heating Film on the dielectric film.
Compared with prior art, the invention has the advantages that: because upper substrate and infrabasal plate sealing moulding are integral piece, and the liquid communication passage is molded directly between upper substrate and the infrabasal plate, even if therefore long-term the use, the shape of liquid communication passage can be out of shape yet, so liquid can or not burnt machine according to predetermined liquid communication passage circulation all the time, adopt upper substrate and infrabasal plate to adopt stainless steel to make, liquid can not produce peculiar smell after circulating by the liquid communication passage.
Description of drawings
Fig. 1 is the perspective view of liquid-heating unit in the embodiment of the invention one;
Fig. 2 is the three-dimensional sectional structure schematic diagram of liquid-heating unit in the embodiment of the invention one;
Fig. 3 is an I portion enlarged drawing among Fig. 2;
Fig. 4 be among Fig. 1 A-A to cutaway view;
Fig. 5 is an I portion enlarged drawing among Fig. 4;
Fig. 6 is the exploded view one of liquid-heating unit in the embodiment of the invention one;
Fig. 7 is the exploded view two of liquid-heating unit in the embodiment of the invention one;
Fig. 8 is the perspective view of liquid-heating unit in the embodiment of the invention two;
Fig. 9 is the perspective view of liquid-heating unit in the embodiment of the invention three.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Embodiment one:
See also Fig. 1 to Fig. 7, the invention provides a kind of liquid-heating unit, it comprises upper substrate that roughly is square 1 and infrabasal plate 2 that stainless steel is made, form the last fluid passage groove 11 that continuous arc type coils layout back and forth with extrusion process on the upper substrate 1, also form the circuitous following fluid passage groove of arranging 21 with extrusion process on the infrabasal plate 2, the degree of depth of last fluid passage groove 11 is greater than the degree of depth of following fluid passage groove 21, upper substrate 1 is an integral piece with infrabasal plate 2 usefulness extrusion process sealing mouldings, and upper substrate 1 is embedded in last fluid passage groove 11 in sealing moulding fluid passage groove 21 sealings at present with infrabasal plate 2, gap between last fluid passage groove 11 and the following fluid passage groove 21 forms circuitous liquid communication passage 3, and the cross section of liquid communication passage 3 is " mouth " font; Infrabasal plate 1 is provided with inlet 22 and the liquid outlet 23 that is communicated with described liquid communication passage 3, and inlet 23 and liquid outlet 23 are separately positioned on the head and the tail of liquid communication passage 3; Be coated with the Electric radiant Heating Film 4 that contains insulating barrier with corresponding position, last fluid passage groove 11 bottoms on the outer surface of upper substrate 1, and the position of plating Electric radiant Heating Film adopts extrusion process to be pressed into the plane on the outer surface of upper substrate 1, Electric radiant Heating Film directly is plated on this plane; The Electric radiant Heating Film 4 that contains insulating barrier can be plated full and the corresponding all sites of described liquid communication passage, also can be to become respectively to be plated in and the corresponding position of described liquid communication passage blockly, also can only be feed liquor position and the fluid position that is plated in described liquid communication passage 3, make the liquid heating fast as long as can satisfy; Upper substrate 1 is provided with two screw columns 12 that are used for fixing junction block.
The manufacture craft of aforesaid liquid heating unit is:
Step 1, on the upper substrate of steel with the extrusion process moulding circuitous be continuous U font coil back and forth layout on the fluid passage groove;
Step 2, on the shape infrabasal plate consistent with upper substrate with the following fluid passage groove of extrusion process forming shape with last fluid passage groove unanimity, the degree of depth of following fluid passage groove is less than the degree of depth of last fluid passage groove;
Step 3, be integral piece, and when upper substrate and infrabasal plate sealing moulding, the sealing of fluid passage groove be embedded in last fluid passage groove upper substrate infrabasal plate sealing moulding;
Step 4, on the outer surface of upper substrate, flatten with extrusion process with the corresponding position of last fluid passage bottom portion of groove, and plate dielectric film in the above, plate Electric radiant Heating Film on the dielectric film then.
Embodiment two:
See also shown in Figure 8, different with embodiment one is, upper substrate 1 and infrabasal plate 2 are roughly rounded, and the round screw thread shape that described liquid communication passage 3 is the plane is arranged, inlet and liquid outlet are arranged on the upper substrate, and are separately positioned on the edge and the middle body of upper substrate.
Embodiment three:
See also shown in Figure 9ly, different with embodiment one is, the described liquid communication passage helix shape that is square, and inlet and liquid outlet are arranged on the upper substrate, and are separately positioned on the edge and the middle body of upper substrate.
Embodiment four:
Different with embodiment one is, infrabasal plate 2 is dull and stereotyped, form the last fluid passage groove 11 that continuous arc type coils layout back and forth with extrusion process on the upper substrate 1, the gap that surrounds between the infrabasal plate 2 of last fluid passage groove 11 and flat board is described liquid communication passage 3.

Claims (8)

1. liquid-heating unit, it is characterized in that: comprise upper substrate (1) and infrabasal plate (2), upper substrate (1) and infrabasal plate (2) sealing moulding are integral piece, and be formed with circuitous liquid communication passage (3) between upper substrate (1) and the infrabasal plate (2), in upper substrate (1) and the infrabasal plate (2) at least upper substrate be that heat-conducting is made, be coated with the Electric radiant Heating Film (4) that contains insulating barrier with the corresponding position of described liquid communication passage (3) at least on the outer surface of described upper substrate (1).
2. liquid-heating unit according to claim 1, it is characterized in that: form fluid passage groove (11) on the described upper substrate (1), also form the shape following fluid passage groove (21) consistent on the described infrabasal plate (2) with last fluid passage groove (11), the degree of depth of last fluid passage groove (11) is greater than the degree of depth of following fluid passage groove (21), and upper substrate (1) and infrabasal plate (2) are when sealing moulding, following fluid passage groove (21) sealing is embedded in last fluid passage groove (11), and the gap between last fluid passage groove (11) and the following fluid passage groove (21) is described liquid communication passage (3).
3. liquid-heating unit according to claim 1, it is characterized in that: form fluid passage groove (11) on the described upper substrate (1), described infrabasal plate (2) is dull and stereotyped, and the gap that surrounds between the infrabasal plate (2) of last fluid passage groove (11) and flat board is described liquid communication passage (3).
4. according to claim 2 or 3 described liquid-heating units, it is characterized in that: described bottom of going up fluid passage groove (11) is the plane, the described bottom of fluid passage groove (21) down also is the plane, thereby makes the cross section of described liquid communication passage (3) be " mouth " font.
5. according to claim 2 or 3 described liquid-heating units, it is characterized in that: described circuitous liquid communication passage (3) is continuous bow font and coils layout or rounded helix shape or the screw type that is square layout back and forth.
6. according to claim 1 or 2 or 3 or 4 described liquid-heating units, it is characterized in that: the position of plating Electric radiant Heating Film adopts extrusion process to be pressed into the plane on the outer surface of described upper substrate (1).
7. liquid-heating unit according to claim 1 is characterized in that: described upper substrate (1) or infrabasal plate (2) are provided with inlet (12) and the liquid outlet (13) that is communicated with described liquid communication passage (3).
8. manufacture craft of liquid-heating unit according to claim 1 is characterized in that: may further comprise the steps:
Step 1, on the upper substrate of steel with the extrusion process moulding circuitous on the fluid passage groove;
Step 2, on the shape infrabasal plate consistent with upper substrate with the following fluid passage groove of extrusion process forming shape with last fluid passage groove unanimity, the degree of depth of following fluid passage groove is less than the degree of depth of last fluid passage groove;
Step 3, be integral piece, and when upper substrate and infrabasal plate sealing moulding, the sealing of fluid passage groove be embedded in last fluid passage groove upper substrate infrabasal plate sealing moulding;
Step 4, on the outer surface of upper substrate with the corresponding position of last fluid passage bottom portion of groove plate dielectric film, plate Electric radiant Heating Film on the dielectric film.
CN 201010180524 2010-05-21 2010-05-21 Liquid heating unit and manufacture process thereof Active CN102252413B (en)

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CN102252413B CN102252413B (en) 2013-03-27

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101943464A (en) * 2010-06-03 2011-01-12 宁波市万泓电器科技有限公司 Liquid heating unit and manufacturing process thereof
CN103584737A (en) * 2013-11-01 2014-02-19 沁园集团股份有限公司 Metal flow channel heating unit for water dispenser
WO2017133711A1 (en) * 2016-02-05 2017-08-10 佛山市云米电器科技有限公司 Heating apparatus for heating liquid

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2073093U (en) * 1990-07-27 1991-03-13 富良 Roll-over heating water heater
DE19732414A1 (en) * 1997-07-30 1999-02-04 Suhl Elektro & Hausgeraetewerk Throughflow heater for heating liquids e.g. water
CN2325703Y (en) * 1998-02-19 1999-06-23 崔雪梅 Multi-surface plate type water heater
CN201045531Y (en) * 2006-05-16 2008-04-09 费罗技术控股公司 Equipment for heating liquid

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2073093U (en) * 1990-07-27 1991-03-13 富良 Roll-over heating water heater
DE19732414A1 (en) * 1997-07-30 1999-02-04 Suhl Elektro & Hausgeraetewerk Throughflow heater for heating liquids e.g. water
CN2325703Y (en) * 1998-02-19 1999-06-23 崔雪梅 Multi-surface plate type water heater
CN201045531Y (en) * 2006-05-16 2008-04-09 费罗技术控股公司 Equipment for heating liquid

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101943464A (en) * 2010-06-03 2011-01-12 宁波市万泓电器科技有限公司 Liquid heating unit and manufacturing process thereof
CN103584737A (en) * 2013-11-01 2014-02-19 沁园集团股份有限公司 Metal flow channel heating unit for water dispenser
WO2017133711A1 (en) * 2016-02-05 2017-08-10 佛山市云米电器科技有限公司 Heating apparatus for heating liquid

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Owner name: NINGBO WANHONG TECHNOLOGY CO., LTD.

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Address after: 315803 Ningbo economic and Technological Development Zone, Zhejiang, G1-2

Patentee after: NINGBO WANHONG TECHNOLOGY CO., LTD.

Address before: 315803 Ningbo economic and Technological Development Zone, Zhejiang, G1-2

Patentee before: Ningbo Waho Electrical Technology Co., Ltd.