CN102529006A - Water heater with plastic shell and foaming method thereof - Google Patents
Water heater with plastic shell and foaming method thereof Download PDFInfo
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- CN102529006A CN102529006A CN2011104239963A CN201110423996A CN102529006A CN 102529006 A CN102529006 A CN 102529006A CN 2011104239963 A CN2011104239963 A CN 2011104239963A CN 201110423996 A CN201110423996 A CN 201110423996A CN 102529006 A CN102529006 A CN 102529006A
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Abstract
The invention provides a method for one-time foaming of a water heater with a plastic shell and a water heater with a plastic shell, which is suitable for integral foaming. The water heater comprises a shell part, an inner container part and a foam part, wherein the foam part is arranged between the plastic shell and the inner container part, and other external parts are arranged, foaming materials are injected between the plastic shell and the inner container part so as to conduct one-time foaming. The shell of the water heater is of an irregular geometric shape, and the cross section of the water heater is specially-shaped. According to the invention, the integral foaming of the plastic shell can be realized, and a foaming layer is gapless, so that the thermal insulation property is improved; the production efficiency is higher; the foaming material is sealed, so that bubbles and cavities of the foaming layer are avoided, so that the thermal insulation property is improved, and simultaneously, the cost is lowered; and the differentiation of the appearance of the water heater can be achieved under a condition that the water heater has the above advantages.
Description
Technical field
The present invention relates to a kind of water heater foaming method, more specifically, relate to a kind of plastic casing water heater and foaming method thereof that can integrated type foaming.
Background technology
At present in the industry to the water heater of plastic casing, its a kind of way of realization is that inner bag is placed on prefoam in the mould earlier, the inner bag after will foaming again is placed in the exterior part such as plastic casing and assembles.Though another kind of way of realization is to adopt integrated type foaming, is provided with soft-medium such as PE sheet material at exterior part inner surfaces such as plastic casings foamed material is sealed.Another way of realization is that plastic casing adopts plastic plate to be rolled into the tubbiness of a rule, is placed in one inner bag, and the plastic casing two ends put two end caps and carry out integrated type foaming with mold cramping.
1) shortcoming of the way of realization existence of employing prefoam:
The principle of this way of realization is: be manufactured with the mould with the identical inner surface of inner surface of exterior parts such as plastic casing earlier; This mould is generally aluminum material or other materials; And the mould design is split into several portions carry out processing such as turnning and milling plane mill separately; Assemble after the several portions processing again, during production inner bag is placed on and carries out prefoam in the mould.Owing to have mismachining tolerance, rigging error during the mould assembling; Its inner surface hardly maybe be in full accord with the inner surface of exterior parts such as plastic casing, the inconsistent of radian can occur, several portions junction interior angle inconsistent; When being placed on the inner bag after the foaming in the exterior part such as plastic casing like this; The gap can appear in exterior part inner surfaces such as foaming layer outer surface and plastic casing usually, reduces heat insulation effect, has improved 24 hours intrinsic coefficient of energy dissipations.And inner bag is placed on prefoam in the mould, must complete cooling curing such as foamed material such as grade after mould just can open, the stand-by period is long, production efficiency is low., opens foamed material mould in case not solidifying fully; Foamed material can continue to expand; Occur wanting after such consequence the inner bag after the foaming is placed in the exterior part such as plastic casing and assemble, need the artificial unnecessary part of foaming layer after foamed material is solidified fully to cut away, production efficiency is low.Moreover; If deviation appears in location mutual between inner bag and the mould; Deviation can appear in the thickness of foaming layer diverse location and design value so, and the some places gap is big during the assembling of exterior parts such as inner bag after causing foaming and plastic casing, and some places foaming bed thickness can't assemble.To above-mentioned shortcoming; The present invention adopts integrated type foaming; Be exterior part assembling post-foamings such as inner bag and plastic casing; The institute that foamed material is fully filled between the exterior parts such as inner bag and plastic casing has living space, between foaming layer and the inner bag, do not have the gap between the exterior parts such as foaming layer and plastic casing, 24 hours intrinsic coefficient of energy dissipations of reduction water heater.The foaming layer of integrated type foaming is foaming layer profiling moulding unlike that kind of prefoam, has eliminated all errors that the profiling moulding causes.Can not reduce production efficiency.
2) adopt integrated type foaming, but be provided with the shortcoming of the way of realization that soft-medium such as PE sheet material seals foamed material at exterior part inner surfaces such as plastic casings:
Though this way of realization is inner bag to be positioned in the exterior part such as plastic casing to carry out integrated type foaming after the assembling; But because between the exterior part, do not have project organization that foamed material is sealed between the exterior parts such as inner bag and plastic casing; Event needs extra exterior part inner surface such as plastic casing that soft-mediums such as PE sheet material are arranged at that foamed material is sealed; Produce constraint when soft-medium such as PE sheet material can flow to foamed material like this, hinder; Foaming layer meeting after foamed material solidifies produces defectives such as bubble, cavity, gap, improves 24 hours intrinsic coefficient of energy dissipations of water heater, raises the cost.To above-mentioned shortcoming; The present invention outside between the parts, have project organization that foamed material is sealed between the exterior part such as inner bag and plastic casing; Not needing extra soft-mediums such as PE sheet material to be arranged at exterior part inner surfaces such as plastic casing seals foamed material; Constraint, obstruction when not having soft-medium such as PE sheet material that foamed material is flowed like this improve the flowing of foamed material, expansion filling capacity, and foamed material solidifies defectives such as the no bubble in back, cavity, gap; Reduce by 24 hours intrinsic coefficient of energy dissipations of water heater, with low cost.
3) plastic casing adopts the shortcoming of the way of realization of plastic plate integrated type foaming:
The plastic casing that this way of realization adopted is a plastic plate; Form the foaming space requirement and be rolled into a tubbiness to plastic plate, since sheet material moulding, the change shape that this tubbiness cannot be random; Can only be the shape of rule, can not satisfy the differentiated demand of different user.It is also better that plastic plate is rolled into round barrel shape, if outward appearance need be rolled into the tubbiness of band corner angle, because sheet material has rigidity, the resilience defective can appear in edges and corners, even this simple appearance requirement also is difficult to guarantee.Moreover; Because can't processing structure on the plastic plate; Can only on plastic plate, do simple punching processing, so just limit design, and the assembling of plastic casing and two ends end cap can only be a connected structure the hermetically-sealed construction of foamed material; The connected structure section of having is poor, and the outward appearance that has reduced product becomes more meticulous.At last, because can't project organization on the plastic plate, the end cap at two ends, water inlet pipe and water outlet pipe place, sewage draining exit place must clamp with clamp fixture and just can accomplish the sealing to foamed material during production, have reduced the efficient of producing like this.To above-mentioned shortcoming, the present invention is through effectively locating exterior parts such as inner bag and plastic casings, and all parts are planned as a whole rational assemble sequence, and place, the fit-up gap structure reasonable in design between all parts realizes the sealing to the foaming process foamed material.
Summary of the invention
Technical problem to be solved by this invention is to the above-mentioned state of the art; A kind of plastic casing water heater of integrated type foaming and method of carrying out disposable foaming to this water heater of being suitable for is provided; Can realize the plastic casing integrated type foaming, foaming layer does not have the gap, and heat-insulating property improves; Has higher production efficiency; To the sealing of foamed material, avoid occurring foaming layer bubble, cavity, heat-insulating property improves, and reduces cost simultaneously; Under the prerequisite of above advantage, realize the differentiation of outward appearance.
For realizing above-mentioned purpose, the present invention realizes through following technical scheme:
A kind of disposable foaming method of plastic casing water heater, this method comprises the steps:
Steps A before annotating foamed material, is placed on first foam segment 10 in the plastics fore shell 8, is placed on inner bag on first foam segment 10 then;
Step B is placed on second foam segment 11 on the inner bag, is placed on plastics back cover 9 on second foam segment 11, simultaneously plastics back cover 9 and plastics fore shell 8 is linked together, and appliance mounting panel 15 is installed;
Step C does and annotates the preceding encapsulation process of foamed material;
Step D annotates foamed material.
Preferably, annotate encapsulation process before the foamed material among the said step C and comprise that installation moulds cover (12) and/or sewage draining exit inner cap (13) greatly.
Preferably, the geometry that is shaped as non-rule of outer cover of water heater (plastics fore shell, plastics back cover).
Preferably, the cross section of outer cover of water heater is an abnormity.
Preferably, first foam segment is set to two parts symmetrical along the longitudinal direction of inner bag, and second foam segment also is set to two parts symmetrical along the longitudinal direction of inner bag, so that install.
Preferably, and the hermetically-sealed construction through wherein it is sealed.
Preferably, make inner bag water inlet pipe and water outlet pipe and/or sewage draining exit 6 along the suitable rotating liner of inner bag axis simultaneously, make it concentric, to confirm the relative position of inner bag and plastics fore shell 8 with water pipe hole and/or blowdown oral pore on the shell.
Preferably, in the junction of plastics fore shell 8 and plastics back cover 9 hermetically-sealed construction is set foamed material is sealed, and guarantee to have between contact-making surface and the contact-making surface distance of 6-15mm;
Preferably, the distance between contact-making surface and the contact-making surface is 8mm or 10mm.
Preferably, the stop bit muscle is set to guarantee the gap between the contact-making surface.
The present invention also provides a kind of plastic casing water heater that is suitable for carrying out disposable foaming; This plastic casing water heater comprises external component, inner bag part, foam segment; Wherein foam segment is arranged between external component and the inner bag part; And the shape of foam segment is complementary with outside external component, inner inner bag shape partly, and external component is provided with hermetically-sealed construction so that foamed material is sealed.
Preferably, said external component comprises plastic casing, moulds cover 12, sewage draining exit inner cap 13 greatly, and plastic casing comprises plastics fore shell 8, plastics back cover 9; Inner bag partly comprises bucket 4, water inlet pipe and water outlet pipe 5, sewage draining exit 6, heating tube 7 in left end socket 1, right end socket 2, right cover flange 3, the inner bag; Foam segment comprises first foam segment 10, second foam segment 11.
Preferably, the shape of first foam segment 10 is set to: the inner surface conformal of first end face and plastics fore shell 8, second end face and inner bag conformal; The shape of second foam segment 11 is set to: first end face and inner bag conformal, the inner surface conformal of second end face and plastics back cover 9.
Preferably, first foam segment is set to two parts symmetrical along the longitudinal direction of inner bag, and second foam segment also is set to two parts symmetrical along the longitudinal direction of inner bag.
Preferably, the geometry that is shaped as non-rule of outer cover of water heater (plastics fore shell, plastics back cover).
Preferably, the cross section of outer cover of water heater is an abnormity.
Preferably, plastics fore shell 8, first foam segment 10, inner bag, second foam segment 11, plastics back cover 9 are suitable for being installed together on the first direction in horizontal plane;
Preferably; Bucket 4, right cover flange 3, right end socket 2 set gradually along the second direction in the horizontal plane in the left end socket 1 of inner bag part, the inner bag; This second direction is vertical with first direction, and water inlet pipe and water outlet pipe 5, sewage draining exit 6, heating tube 7 are successively set on the lower surface of inner bag.
Preferably, plastics fore shell 8 is provided with hermetically-sealed construction with the junction of plastics back cover 9; Mould assembling place of cover 12, sewage draining exit inner cap 13 and plastics fore shell 8 greatly, also be provided with hermetically-sealed construction.
Assembling place and/or assembling place between sewage draining exit inner cap 13 and the inner bag of preferably, moulding greatly between cover 12 and the inner bag are provided with hermetically-sealed construction.
Preferably; Moulding between cover 12 and the inner bag greatly and/or between sewage draining exit inner cap 13 and the inner bag compressible elastic sponge is being set; The end face of moulding cover 12 and/or sewage draining exit inner cap 13 greatly is provided with maze trough, contacts with elastic sponge to form the labyrinth, so that foamed material is sealed.
Preferably, between appliance mounting panel 15 and right end socket 2, hermetically-sealed construction is set;
Preferably, appliance mounting panel 15 is provided with maze trough in right end socket 2 one sides, contacts with right end socket 2 and forms the labyrinth, so that foamed material is sealed.
Through above technical scheme, the present invention can realize following benefit:
1, plastic casing integrated type foaming, foaming layer does not have the gap, and heat-insulating property improves.
2, plastic casing integrated type foaming production efficiency is high.
3, to the hermetically-sealed construction of foamed material, avoid occurring foaming layer bubble, cavity, heat-insulating property improves, and reduces cost simultaneously.
4, the appearance poor alienation under the prerequisite of above advantage realizes.
Description of drawings
According to embodiment and accompanying drawing the present invention is done further explain below.
Fig. 1 is the explosive view of plastic casing water heater parts among the present invention.
The technical characterictic that wherein Reference numeral referred among the figure is respectively:
1, left end socket; 2, right end socket; 3, right cover flange; 4, bucket in the inner bag; 5, water inlet pipe and water outlet pipe; 6, sewage draining exit; 7, heating tube; 8, plastics fore shell; 9, plastics back cover; 10, first foam segment; 11, second foam segment; 12, mould cover greatly; 13, sewage draining exit inner cap; 14, gland; 15, appliance mounting panel.
The specific embodiment
A kind of plastic casing water heater that can integrated type foaming is provided in a preferred embodiment of the invention; This water heater comprises external component, inner bag part, foam segment; Wherein foam segment is arranged between external component and the inner bag part; And the shape of foam segment is complementary with outside external component, inner inner bag shape partly, and external component is provided with hermetically-sealed construction so that foamed material is sealed.
Wherein, external component comprises plastic casing, moulds cover 12, sewage draining exit inner cap 13 greatly, and plastic casing comprises plastics fore shell 8, plastics back cover 9; Inner bag partly comprises bucket 4, water inlet pipe and water outlet pipe 5, sewage draining exit 6, heating tube 7 (optional, as can also to comprise other parts that are arranged on wherein) in left end socket 1, right end socket 2, right cover flange 3, the inner bag; Foam segment comprises first foam segment 10, second foam segment 11.
Wherein, the shape of first foam segment 10 is set to: first inner surface conformal with plastics fore shell 8, second with the inner bag conformal; For ease of installing, first foam segment 10 is set to two parts symmetrical along the longitudinal direction of inner bag;
The shape of second foam segment 11 is set to: first with inner bag conformal, second inner surface conformal with plastics back cover 9; For ease of installing, second foam segment 11 is set to two parts symmetrical along the longitudinal direction of inner bag;
Preferably, the geometry that is shaped as non-rule of outer cover of water heater (plastics fore shell, plastics back cover).
Preferably, the cross section of outer cover of water heater is an abnormity.
Bucket 4, right cover flange 3, right end socket 2 are along second direction (another horizontal direction in the horizontal plane in the left end socket 1 of inner bag part, the inner bag; Vertical with first direction) set gradually, water inlet pipe and water outlet pipe 5, sewage draining exit 6, heating tube 7 are successively set on the lower surface of inner bag;
At the binding site of plastics fore shell 8, be provided with hermetically-sealed construction so that foamed material is sealed with plastics back cover 9;
Moulding cover 12 and the rigging position that plastics fore shell 8 assembles greatly, be provided with hermetically-sealed construction so that foamed material is sealed;
Rigging position in that sewage draining exit inner cap 13 and plastics fore shell 8 assemble is provided with hermetically-sealed construction so that foamed material is sealed;
Assembly structure moulding greatly between cover 12 and the inner bag is provided with hermetically-sealed construction so that foamed material is sealed;
Preferably, mould greatly between cover 12 and the inner bag, maze trough is set, contact the formation labyrinth with elastic sponge foamed material is sealed at the end face of moulding cover 12 greatly through utilizing compressible elastic sponge to be arranged on;
Assembly structure between sewage draining exit inner cap 13 and inner bag is provided with hermetically-sealed construction so that foamed material is sealed;
Preferably, be provided with between sewage draining exit inner cap 13 and the inner bag, maze trough be set, contact with elastic sponge and form the labyrinth foamed material is sealed at the end face of sewage draining exit inner cap 13 through utilizing compressible elastic sponge;
Between appliance mounting panel 15 and right end socket 2, be provided with hermetically-sealed construction so that foamed material is sealed;
Preferably, on the end face of right end socket 2 one sides, be designed with maze trough, contact the formation labyrinth with right end socket 2 foamed material is sealed at appliance mounting panel 15.
Plastic casing water heater among this embodiment is suitable for carrying out integrated type foaming with following steps:
Its process is following:
Steps A before annotating foamed material to water heater, is placed on first foam segment 10 in the plastics fore shell 8, is placed on inner bag on first foam segment 10 then.
Preferably, simultaneously make inner bag water inlet pipe and water outlet pipe and/or sewage draining exit 6 concentric with water pipe hole and/or blowdown oral pore on the shell along the suitable rotating liner of inner bag axis, the relative position of inner bag and plastics fore shell 8 is just definite like this.
Preferably, the shape of first foam segment 10 is set to: the inner surface conformal of first end face and plastics fore shell 8, second end face and inner bag conformal.
Preferably, first foam segment is set to two parts symmetrical along the longitudinal direction of inner bag.
Step B is placed on second foam segment 11 on the inner bag, is placed on plastics back cover 9 on second foam segment 11, simultaneously plastics back cover 9 and plastics fore shell 8 is linked together through screw (or other modes), and appliance mounting panel 15 is installed.
Preferably, the geometry that is shaped as non-rule of outer cover of water heater (plastics fore shell, plastics back cover).
Preferably, the cross section of outer cover of water heater is an abnormity.
Preferably, the shape of second foam segment 11 is set to: first end face and inner bag conformal, the inner surface conformal of second end face and plastics back cover 9;
Preferably, second foam segment also is set to two parts symmetrical along the longitudinal direction of inner bag.
Preferably, in the junction of plastics fore shell 8 and plastics back cover 9 hermetically-sealed construction is set foamed material is sealed,, guarantee that through the stop bit muscle is set the gap between the 10mm contact-making surface is enough little through the contact distance of 6-15mm between face and the face.
Step C does and annotates the preceding encapsulation process of foamed material.
Preferably, comprise among this step C dress mould greatly the cover 12, sewage draining exit inner cap 13.
Mould cover 12 greatly, sewage draining exit inner cap 13 assembles and seals with inner bag respectively.Preferably, through utilizing compressible elastic sponge to be arranged on to mould greatly between cover and the inner bag (between sewage draining exit inner cap and the inner bag), mould cover (sewage draining exit inner cap) end face greatly and be designed with maze trough and contact the formation labyrinth with elastic sponge foamed material is sealed.
Hermetically-sealed construction through being provided with between appliance mounting panel 15 and the right end socket 2 seals.Preferably, appliance mounting panel 15 is designed with maze trough in right end socket 2 one sides, contacts the formation labyrinth with right end socket 2 foamed material is sealed.
Step D annotates foamed material.
Optional, can also before the step D that annotates foamed material, in through the plastic casing water heater that steps A-C realized, miscellaneous parts such as heating tube, wire harness, electrical equipment control part be installed as required.
Like this, can carry out the overall time foaming through the plastic casing water heater among this embodiment, method among the present invention and result can realize following advantage:
1, plastic casing integrated type foaming, foaming layer does not have the gap, and heat-insulating property improves.
2, plastic casing integrated type foaming production efficiency is high.
3, to the hermetically-sealed construction of foamed material, avoid occurring foaming layer bubble, cavity, heat-insulating property improves, and reduces cost simultaneously.
4, the appearance poor alienation under the prerequisite of above advantage realizes.
What need statement is; The above-mentioned specific embodiment only is preferred embodiment of the present invention and institute's application technology principle; In the disclosed technical scope of the present invention, any variation that the technical staff expected easily or replacement of being familiar with the present technique field all should be encompassed in protection scope of the present invention.
Claims (10)
1. the disposable foaming method of a plastic casing water heater is characterized in that, this method comprises the steps:
Steps A before annotating foamed material, is placed on first foam segment (10) in the plastics fore shell (8), is placed on inner bag on first foam segment (10) then;
Step B is placed on second foam segment (11) on the inner bag, is placed on plastics back cover (9) on second foam segment (11), simultaneously plastics back cover (9) and plastics fore shell (8) is linked together, and appliance mounting panel (15) is installed;
Step C does and annotates the preceding encapsulation process of foamed material;
Step D annotates foamed material.
2. method according to claim 1 is annotated encapsulation process before the foamed material and is comprised that installation moulds cover (12) and/or sewage draining exit inner cap (13) greatly among the said step C.
3. method according to claim 1 is characterized in that first foam segment is set to two parts symmetrical along the longitudinal direction of inner bag, and second foam segment also is set to two parts symmetrical along the longitudinal direction of inner bag.
4. method according to claim 1 is characterized in that, in the junction of plastics fore shell (8) and plastics back cover (9) hermetically-sealed construction is set foamed material is sealed, and guarantee to have between contact-making surface and the contact-making surface distance of 6-15mm.
5. method according to claim 1; It is characterized in that; In steps A, also comprise, when being placed on first foam segment (10), make the inner bag water inlet pipe and water outlet pipe to inner bag along the suitable rotating liner of inner bag axis; Make it concentric, to confirm the relative position of inner bag and plastics fore shell (8) with the water pipe hole on the shell.
6. plastic casing water heater that is suitable for carrying out disposable foaming; This plastic casing water heater comprises external component, inner bag part, foam segment; Wherein foam segment is arranged between external component and the inner bag part, and the shape of foam segment is complementary with outside external component, inner inner bag shape partly.
7. water heater according to claim 6 is characterized in that, said external component comprises plastic casing, moulds cover (12), sewage draining exit inner cap (13), appliance mounting panel (15) greatly; And plastic casing comprises plastics fore shell (8), plastics back cover (9); Inner bag partly comprises bucket (4), water inlet pipe and water outlet pipe (5), sewage draining exit (6), heating tube (7) in left end socket (1), right end socket (2), right cover flange (3), the inner bag; Foam segment comprises first foam segment (10), second foam segment (11).
8. water heater according to claim 7 is characterized in that, the shape of first foam segment (10) is set to: the inner surface conformal of first end face and plastics fore shell (8), second end face and inner bag conformal; The shape of second foam segment (11) is set to: first end face and inner bag conformal, the inner surface conformal of second end face and plastics back cover (9); And first foam segment is set to two parts symmetrical along the longitudinal direction of inner bag, and second foam segment also is set to two parts symmetrical along the longitudinal direction of inner bag.
9. water heater according to claim 7 is characterized in that, plastics fore shell (8), first foam segment (10), inner bag, second foam segment (11), plastics back cover (9) are suitable for being installed together on the first direction in horizontal plane; Bucket (4), right cover flange (3), right end socket (2) set gradually along the second direction in the horizontal plane in the left end socket (1) of inner bag part, the inner bag; This second direction is vertical with first direction, and water inlet pipe and water outlet pipe (5), sewage draining exit (6), heating tube (7) are successively set on the inner bag.
10. water heater according to claim 7 is characterized in that, plastics fore shell (8) is provided with hermetically-sealed construction with the junction of plastics back cover (9); Mould assembling place of cover (12), sewage draining exit inner cap (13) and plastics fore shell (8) greatly, be provided with hermetically-sealed construction; Assembling place and/or assembling place between sewage draining exit inner cap (13) and the inner bag of moulding greatly between cover (12) and the inner bag are provided with hermetically-sealed construction; Between appliance mounting panel (15) and right end socket (2), hermetically-sealed construction is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110423996.3A CN102529006B (en) | 2011-12-16 | 2011-12-16 | A kind of Water heater with plastic shell and foaming method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110423996.3A CN102529006B (en) | 2011-12-16 | 2011-12-16 | A kind of Water heater with plastic shell and foaming method thereof |
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| Publication Number | Publication Date |
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| CN102529006A true CN102529006A (en) | 2012-07-04 |
| CN102529006B CN102529006B (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110423996.3A Active CN102529006B (en) | 2011-12-16 | 2011-12-16 | A kind of Water heater with plastic shell and foaming method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485917A (en) * | 2014-10-10 | 2016-04-13 | 青岛经济技术开发区海尔热水器有限公司 | Water heater foaming material sealing structure |
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| US4768678A (en) * | 1983-07-12 | 1988-09-06 | Charles Nusbaumer | Method for manufacturing a composite foamed water-heater body from a foamed fiber-reinforced polyester resin and the resultant product |
| CN1288139A (en) * | 1999-09-11 | 2001-03-21 | 郭伟 | Solar energy vacuum tube water heater water tank, its processing technology and material used |
| CN2525421Y (en) * | 2002-02-04 | 2002-12-11 | 王锦林 | Plastic inner bladder and outer case integrated tube section device for electric water heater |
| CN101722612A (en) * | 2008-10-21 | 2010-06-09 | Bsh博施及西门子家用器具有限公司 | Method and device for manufacturing a storage device, especially a hot water preparation device and a storage device |
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2011
- 2011-12-16 CN CN201110423996.3A patent/CN102529006B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4768678A (en) * | 1983-07-12 | 1988-09-06 | Charles Nusbaumer | Method for manufacturing a composite foamed water-heater body from a foamed fiber-reinforced polyester resin and the resultant product |
| CN1288139A (en) * | 1999-09-11 | 2001-03-21 | 郭伟 | Solar energy vacuum tube water heater water tank, its processing technology and material used |
| CN2525421Y (en) * | 2002-02-04 | 2002-12-11 | 王锦林 | Plastic inner bladder and outer case integrated tube section device for electric water heater |
| CN101722612A (en) * | 2008-10-21 | 2010-06-09 | Bsh博施及西门子家用器具有限公司 | Method and device for manufacturing a storage device, especially a hot water preparation device and a storage device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485917A (en) * | 2014-10-10 | 2016-04-13 | 青岛经济技术开发区海尔热水器有限公司 | Water heater foaming material sealing structure |
| CN105485917B (en) * | 2014-10-10 | 2019-08-06 | 青岛经济技术开发区海尔热水器有限公司 | Water heater foamed material sealing structure |
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| CN102529006B (en) | 2016-12-07 |
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