CN201983446U - Electric water heater - Google Patents
Electric water heater Download PDFInfo
- Publication number
- CN201983446U CN201983446U CN2011200353880U CN201120035388U CN201983446U CN 201983446 U CN201983446 U CN 201983446U CN 2011200353880 U CN2011200353880 U CN 2011200353880U CN 201120035388 U CN201120035388 U CN 201120035388U CN 201983446 U CN201983446 U CN 201983446U
- Authority
- CN
- China
- Prior art keywords
- apparatus room
- room housing
- electric apparatus
- end cap
- electric heater
- 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 - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 7
- 238000005187 foaming Methods 0.000 claims abstract description 30
- 238000009413 insulation Methods 0.000 claims abstract description 19
- 210000002435 tendon Anatomy 0.000 claims description 14
- 239000006260 foam Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 abstract description 36
- 238000000034 method Methods 0.000 abstract description 16
- 230000008569 process Effects 0.000 abstract description 15
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000004321 preservation Methods 0.000 abstract 1
- 239000004033 plastic Substances 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000000465 moulding Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 239000007937 lozenge Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Details Of Fluid Heaters (AREA)
Abstract
The utility model provides an electric water heater can solve among the prior art for preventing that end cover, shell sink and increase the problem that the electrical apparatus room casing that the material volume of annotating improves the foaming density and cause and contact department flash of inner bag right side courage mouth head at the foaming in-process. An electric water heater comprises a shell, an inner container, a heat insulation layer, an end cover and an electric appliance chamber shell arranged in the center of the end cover, wherein a material blocking ring is arranged between the electric appliance chamber shell and a container opening end socket of the inner container. Through setting up and keeping off the material circle, increase the notes material volume when improving the foaming density in the heat preservation foaming forming process, can effectively block that the foaming material gets into inside the electrical apparatus room casing from between the courage mouth head of electrical apparatus room casing and inner bag, guarantee not the flash. In addition, the isolating ring is arranged to prevent the end cover or the shell of the electric appliance chamber from sinking or bulging, and the appearance quality of the electric water heater is ensured.
Description
Technical field
The utility model belongs to technical field of water heaters, is specifically related to realize preventing that flash and end cap from playing bulging electric heater in foaming process.
Background technology
The water tank of electric heater comprises inner bag and shell, is provided with the heat-insulation layer that is formed by foamed material between inner bag and shell.At present, in order to prevent that foamed material from shrinking that the end cap cause sink or shell, end cap in transportation damaged saggingly, electric heater all can increase shot, improve foaming density in foaming process.Yet, after improving density, the easy flash in courage mouth end socket contact position, right side of electric apparatus room housing and inner bag in the foaming process, influence clean and tidy, wiring even safety in the electric apparatus room housing, also can cause end cap to play drum when serious, cause end cap to sink in the foamed material low temperature contraction process if reduce foaming density then can appear at.
For addressing the above problem, what in the prior art there be the electric apparatus room housing is direct with the making of EPS (polystyrene) foamed material, but because the intensity of eps foam existence own is lower, heatproof is on the low side, on fire easily, can't on foam mold, realize the deficiency of aspects such as complicated assembly structure, therefore, adopt eps foam material electric apparatus room housing poor effect; What generally use at present is directly to use plastics electric apparatus room housing, have following shortcoming and defect part: 1, the assembling between the right side courage mouth cover flange of plastics electric apparatus room housing and metal inner tube is the contact between the hard material, be difficult to guarantee the tight seal of contact-making surface, and the very difficult supplementary structure that increases other guarantees not flash; 2, only contact for electric apparatus room housing wall thickness between the right side courage mouth cover flange of plastics electric apparatus room housing and metal inner tube, contact-making surface is little, easy flash in the foaming process; 3, because foamed material itself has viscosity, if foamed material directly contacts with plastic end cover, plastics electric apparatus room housing, in the time of the foamed material contraction then can occurring that plastic end cover or electric apparatus room housing is drop-down, the situation that causes sinking takes place, serious cause total bad order, if but increased shot in order to guarantee not sink, would then very easily cause foamed material jack-up end cap to play drum.
The utility model content
The utility model provides a kind of electric heater, can solve increasing shot improve the electric apparatus room housing that foaming density causes and the problem of inner bag courage mouth end socket contact position flash in foaming process for preventing that end cap, shell from sinking of existing in the prior art.
For reaching the purpose that solves the problems of the technologies described above, a kind of electric heater of the utility model is achieved by the following technical solutions:
A kind of electric heater comprises shell, inner bag, heat-insulation layer, end cap and is installed on electric apparatus room housing in the end cap central part, is provided with collet between the courage mouth end socket of described electric apparatus room housing and described inner bag.
In the technical solution of the utility model, also have following additional technical feature:
Described collet have with contacted first side of described courage mouth end socket and with contacted second side of described electric apparatus room housing.
Described first side is against on the described courage mouth end socket outer surface, is shaped as and the suitable arcuation of described courage mouth end socket outer surface; Described second side is against on the bottom outer surface of described electric apparatus room housing, and the bottom outer surface of shape and described electric apparatus room housing is suitable.
Described second side is provided with groove, and correspondence is provided with first convex tendon on the described electric apparatus room housing, and the two side of described groove is 1～3mm with the distance of the corresponding sidewall of described first convex tendon.
Also be provided with second convex tendon in the outer ring surface outside that is positioned at described collet on the described electric apparatus room housing.
Described end cap has the stationary plane that is used for fixing described electric apparatus room housing, and described stationary plane has along described electric apparatus room housing to inner two steps that extend of described electric heater at least.
The outer edge of described electric apparatus room housing is provided with buckle, and correspondence is provided with draw-in groove on the described end cap.
Be provided with cage ring between described end cap and the heat-insulation layer.
Described cage ring has first cage ring side that contacts with described end cap and the second cage ring side that contacts with described heat-insulation layer, the shape of the described first cage ring side and the inner surface of described end cap are suitable, the described second cage ring side be shaped as wedge shape.
Described collet and cage ring are by the eps foam foaming.
Compared with prior art, advantage of the present utility model and good effect are:
1, the utility model is by being provided with collet between the courage mouth end socket of electric apparatus room housing and inner bag, increasing shot in the heat-insulating layer foaming forming process improves when foaming density, can stop effectively that foamed material enters the electric apparatus room enclosure interior between the courage mouth end socket of electric apparatus room housing and inner bag, guarantee not flash.
2, by being provided with on the face with the fixedly electric apparatus room housing of end cap to the inner two-layer at least ladder that extends of electric heater, what make that the end cap central part installs is used to hide the service cover of electric apparatus room and the distance increasing of electric apparatus room housing, then when increasing shot raising foaming density, even the too much jack-up electric apparatus room of foamed material housing has made it drum, because the distance of service cover and electric apparatus room housing is bigger, the electric apparatus room housing plays drum can not have influence on service cover, thereby can not influence the electric heater outward appearance.
3, by being set, cage ring isolates end cap and heat-insulation layer, prevent in the heat-insulating layer foaming forming process, drop-down plastic end cover of foamed material or electric apparatus room housing cause sinking when foamed material shrinks owing to the viscosity of foamed material itself, serious cause total bad order, on the contrary, prevent that when increasing shot, can also playing the too much jack-up end cap of foamed material from having made it drum, guarantees the electric heater presentation quality.
4, collet and left cage ring adopt eps foam to make, and intensity is higher, and mould molding is good, also has the better elastic deformability simultaneously, can prevent from by the deformation of eps foam to sink, improve foaming density, intensity, prevent flash, improve the heat-insulating property of water heater itself.
Description of drawings
Fig. 1 is the structural representation of a kind of electric heater of the utility model embodiment;
Fig. 2 is a kind of electric heater of the utility model embodiment right part partial enlarged drawing;
Fig. 3 is the structural representation of collet among the utility model embodiment;
Fig. 4 is the cutaway view of Fig. 3;
Fig. 5 is the structural representation of cage ring among the utility model embodiment;
Fig. 6 is the assembly structure schematic diagram of cage ring and right end cap among the utility model embodiment;
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Referring to figs. 1 through shown in Figure 6, a kind of electric heater of present embodiment comprises shell 10, inner bag 20, heat-insulation layer 30, end cap and is installed on the electric apparatus room housing 60 of end cap central part, is provided with collet 70 between the courage mouth end socket 21 of electric apparatus room housing 60 and inner bag 20.
Particularly, electric apparatus room housing 60 can be installed in right right end cap 50 or left end cap 40 central parts, and electric apparatus room housing 60 is installed in right right end cap 50 central parts in the present embodiment, and electric heater is laterally installed, and decide with its installment state in related orientation.The cavity place of collet 70 between electric apparatus room housing 60 and courage mouth end socket 21, adopt expanded material by the foaming mould moulding, preferred EPS (polystyrene) foam, intensity is higher, mould molding is good, also have elastic deformability preferably simultaneously, can be fastened on closely between electric apparatus room housing 60 and the courage mouth end socket 21.The outer ring surface 74 of collet 70 is stepped, ladder intersection arc transition, promptly from the pact of collet 70 half highly to part near courage mouth end socket 21, thickness increases gradually, then under the prerequisite of, the enhanced leaktightness long-pending that has guaranteed collet 70 and courage mouth end socket 21 than large contact surface, saved material, made heat-insulation layer 30 enough thickness be arranged simultaneously in order to avoid influence heat insulation effect.
For collet 70 being played effectively stop the foamed material of isolating moulding heat-insulation layer 30 to overflow into effect in the electric apparatus room housing 60, collet 70 have with courage mouth end socket 21 contacted first sides 71 and with electric apparatus room housing 60 contacted second sides 72.
Installation for firm collet 70, prevent in foaming process collet 70 play and influence it and the sealing of electric apparatus room housing bottom outer surface 61 and courage mouth end socket 21 contact positions causes flash under the foamed material thrust, second side 72 is provided with groove 73, corresponding first convex tendon 62 that matches with groove 73 that is provided with on the electric apparatus room housing 60, the groove 73 and first convex tendon 62 can be whole circle circular configurations, or the interval is provided with the multistage groove along circular distribution, for easy to process, the groove 73 and first convex tendon 62 are whole circle circular configuration.In addition, the corresponding sidewall of each side of the two side of groove 73 and first convex tendon 62 be 1～3mm apart from a, promptly between groove 73 sidewalls and first convex tendon, 62 sidewalls, reserve the gap of about 1～3mm, both sides are totally 2～6mm gap, even when then in foaming process, having foamed material to penetrate groove 73, also can carry out prefoam by this groove, because the foamed material amount that penetrates can be not a lot, therefore the space of groove 73 is enough to guarantee that foamed material finishes in this space foaming, thereby can not overflow in courage mouth and electric apparatus room housing 60.
In addition, also be provided with second convex tendon 63 in outer ring surface 74 outsides that are positioned at collet 70 on the electric apparatus room housing 60, outer ring surface 74 backstops of collet 70 are lived, thereby strengthened the steadiness that collet 70 is installed, first convex tendon 62 and second convex tendon 63 can be one-body molded with electric apparatus room housing 60.
Particularly, the central part of right end cap 50 has cavity, electric apparatus room housing 60 is installed in this center cavity place, its outward flange is fixed on the stationary plane 51 of right end cap 50, service cover 80 is used to block and is convenient to keep in repair electric apparatus room housing 60 inner bodies, the outer edge of electric apparatus room housing 60 is provided with buckle 64, correspondence is provided with draw-in groove 54 on the right end cap 50, then when mounted, buckle 64 does not block before not exerting oneself, but because EPS collet 70 has certain elasticity, therefore buckle 64 and draw-in groove 54 snap into the position when firmly collet 70 is out of shape on time down, simultaneously because the deformation of collet 70, it is tightr to make that the cambered surface of the cambered surface of its first side 71 and courage mouth end socket 21 is fitted, and has therefore stopped the flash of cambered surface.
Be provided with cage ring 90 between right end cap 50 and the heat-insulation layer 30.Cage ring 90 can adopt the eps foam foaming, so, for preventing that right end cap 50 or electric apparatus room housing 60 from sinking when increasing shot, under the situation of flash not, because EPS can have certain deformation, therefore in cage ring 90 deformation processes, can improve the packed density of foamed material, then by cage ring 90 with strength transmission to right end cap 50, right end cap 50 is propped up, simultaneously owing to kept apart by EPS between right end cap 50 and the foamed material, therefore even foamed material shrinks, EPS recovers flexible process and also right end cap 50 can be propped up so, guarantees the electric heater presentation quality.
Particularly, along the circumferential direction be distributed with 2～4 erection columns 53 on the inner surface of right end cap 50, correspondence is provided with 2～4 installing holes 91 on the cage ring 90, installing hole 91 and erection column 53 interference assembling, thus cage ring 90 is installed on the right end cap 50.
It is suitable that cage ring 90 has the inner surface of the shape of first cage ring side 92 that contacts with right end cap 50 and 93, the first cage ring sides 92, the second cage ring side that contact with heat-insulation layer 30 and right end cap 50, the second cage ring side 93 be shaped as wedge shape.
Particularly, the effect of the wedge shape second cage ring side 93 is: in heat-insulation layer 30 foamed forming process, its outside has shell 10 to stop, the inboard has inner bag 20 to stop, therefore except circumferencial direction, foamed material has only upwards expansion, when arriving the position of the wedge second cage ring side 93, continue upwards to expand along lozenges, crowded more tight more, foaming density and uniformity have been increased greatly, improved the heat-insulating property of heat-insulation layer 30, even the foamed material of turning back is arranged, when penetrating collet 70 upper grooves 73, also can carry out prefoam by this groove, because the foamed material amount that penetrates can be not a lot, so the space of groove 73 is enough to guarantee foamed material foaming finishes in this space, thereby can not overflow to the courage mouth.The second cage ring side 93 is tending towards the plane near the part of cage ring 90 center cavities, and the intersection arc transition its role is to: guaranteed the intensity of cage ring 90, it is bad to have avoided in assembling or the transportation cage ring 90 to bump breakdown.
The wedge angle α of the second cage ring side 93 is advisable with 30 °～60 °, and preferred 45 °, its segment thickness b that is tending towards level accounts for 1/4～1/2 of cage ring 90 thickness c, about about 10mm.
In like manner, also cage ring 90 can be set between left end cap 40 and heat-insulation layer 30, its effect, shape and mounting means are close with right end cap 50 place's cage rings, also preferably by the eps foam foaming.
Before a kind of electric heater foaming of present embodiment heat-insulation layer 30, right end cap 50 that will install in advance earlier and cage ring 90 install to shell 10 the insides, the electric apparatus room housing 60 that will install in advance again and collet 70 assemblies and right end cap 50, courage mouth end socket 21 assembles, owing to be reserved with buckle 64 on the electric apparatus room housing 60, be reserved with draw-in groove 54 on the right end cap 50, firmly press electric apparatus room housing 60 down, electric apparatus room housing 60 and right end cap 50 snap into the position during collet 70 distortion, it is tightr to make that simultaneously the cambered surface of the cambered surface of collet 70 and courage mouth end socket 21 is fitted, therefore stopped the flash of cambered surface, foamed then.
The above, it only is preferred embodiment of the present utility model, be not to be the restriction of the utility model being made other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection domain of technical solutions of the utility model according to technical spirit of the present utility model.
Claims (10)
1. electric heater comprises shell, inner bag, heat-insulation layer, end cap and is installed on the electric apparatus room housing of end cap central part, it is characterized in that: be provided with collet between the courage mouth end socket of described electric apparatus room housing and described inner bag.
2. electric heater according to claim 1 is characterized in that: described collet have with contacted first side of described courage mouth end socket and with contacted second side of described electric apparatus room housing.
3. electric heater according to claim 2 is characterized in that: described first side is against on the described courage mouth end socket outer surface, is shaped as and the suitable arcuation of described courage mouth end socket outer surface; Described second side is against on the bottom outer surface of described electric apparatus room housing, and the bottom outer surface of shape and described electric apparatus room housing is suitable.
4. electric heater according to claim 3 is characterized in that: described second side is provided with groove, and correspondence is provided with first convex tendon on the described electric apparatus room housing, and the two side of described groove is 1～3mm with the distance of the corresponding sidewall of described first convex tendon.
5. electric heater according to claim 4 is characterized in that: second convex tendon that also is provided with the outer ring surface outside that is positioned at described collet on the described electric apparatus room housing.
6. electric heater according to claim 1 is characterized in that: described end cap has the stationary plane that is used for fixing described electric apparatus room housing, and described stationary plane has along described electric apparatus room housing to inner two steps that extend of described electric heater at least.
7. electric heater according to claim 6 is characterized in that: the outer edge of described electric apparatus room housing is provided with buckle, and correspondence is provided with draw-in groove on the described end cap.
8. according to each described electric heater in the claim 1 to 7, it is characterized in that: be provided with cage ring between described end cap and the heat-insulation layer.
9. electric heater according to claim 8, it is characterized in that: described cage ring has first cage ring side that contacts with described end cap and the second cage ring side that contacts with described heat-insulation layer, the shape of the described first cage ring side and the inner surface of described end cap are suitable, the described second cage ring side be shaped as wedge shape.
10. electric heater according to claim 9 is characterized in that: described collet and cage ring are by the eps foam foaming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200353880U CN201983446U (en) | 2011-01-27 | 2011-01-27 | Electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200353880U CN201983446U (en) | 2011-01-27 | 2011-01-27 | Electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201983446U true CN201983446U (en) | 2011-09-21 |
Family
ID=44610905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200353880U Expired - Lifetime CN201983446U (en) | 2011-01-27 | 2011-01-27 | Electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201983446U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104566982A (en) * | 2013-10-25 | 2015-04-29 | 海尔集团公司 | Water storage type electric water heater with combined electric appliance chamber and maintenance cover structure |
| 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 | Sealing structure for foaming material of water heater |
| CN106225220A (en) * | 2016-07-19 | 2016-12-14 | 宁波帅康热水器有限公司 | A kind of high waterproof thermal-insulated fire-retardant electric heater |
| CN106369827A (en) * | 2015-07-24 | 2017-02-01 | 青岛经济技术开发区海尔热水器有限公司 | Water heater |
| CN108507180A (en) * | 2017-02-28 | 2018-09-07 | 芜湖美的厨卫电器制造有限公司 | Electric heater |
| CN109323453A (en) * | 2018-10-22 | 2019-02-12 | 珠海格力电器股份有限公司 | Water tank lower head structure, water tank and water heater |
| CN110302516A (en) * | 2019-07-11 | 2019-10-08 | 上海小莫网络科技有限公司 | Water tank and rowing machine |
| CN111331772A (en) * | 2018-12-18 | 2020-06-26 | 青岛经济技术开发区海尔热水器有限公司 | Preparation method of double-liner water heater and double-liner water heater |
| CN112128978A (en) * | 2019-06-24 | 2020-12-25 | 青岛经济技术开发区海尔热水器有限公司 | Electric water heater |
| CN113108461A (en) * | 2021-03-30 | 2021-07-13 | 青岛经济技术开发区海尔热水器有限公司 | Processing and assembling method of electric water heater |
| CN113108462A (en) * | 2021-03-30 | 2021-07-13 | 青岛经济技术开发区海尔热水器有限公司 | Electric water heater |
| CN114963534A (en) * | 2021-06-10 | 2022-08-30 | 武汉海尔热水器有限公司 | Water heater |
-
2011
- 2011-01-27 CN CN2011200353880U patent/CN201983446U/en not_active Expired - Lifetime
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104566982A (en) * | 2013-10-25 | 2015-04-29 | 海尔集团公司 | Water storage type electric water heater with combined electric appliance chamber and maintenance cover structure |
| 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 | Sealing structure for foaming material of water heater |
| 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 | Sealing structure for foaming material of water heater |
| CN106369827A (en) * | 2015-07-24 | 2017-02-01 | 青岛经济技术开发区海尔热水器有限公司 | Water heater |
| CN106225220A (en) * | 2016-07-19 | 2016-12-14 | 宁波帅康热水器有限公司 | A kind of high waterproof thermal-insulated fire-retardant electric heater |
| CN106225220B (en) * | 2016-07-19 | 2019-02-05 | 宁波帅康热水器有限公司 | A kind of high waterproof thermal-insulated fire-retardant electric heater |
| CN108507180A (en) * | 2017-02-28 | 2018-09-07 | 芜湖美的厨卫电器制造有限公司 | Electric heater |
| CN108507180B (en) * | 2017-02-28 | 2023-12-22 | 芜湖美的厨卫电器制造有限公司 | Electric water heater |
| CN109323453A (en) * | 2018-10-22 | 2019-02-12 | 珠海格力电器股份有限公司 | Water tank lower head structure, water tank and water heater |
| CN111331772A (en) * | 2018-12-18 | 2020-06-26 | 青岛经济技术开发区海尔热水器有限公司 | Preparation method of double-liner water heater and double-liner water heater |
| CN111331772B (en) * | 2018-12-18 | 2024-01-09 | 青岛经济技术开发区海尔热水器有限公司 | Preparation method of double-liner water heater and double-liner water heater |
| CN112128978A (en) * | 2019-06-24 | 2020-12-25 | 青岛经济技术开发区海尔热水器有限公司 | Electric water heater |
| CN112128978B (en) * | 2019-06-24 | 2022-04-22 | 青岛经济技术开发区海尔热水器有限公司 | Electric water heater |
| CN110302516A (en) * | 2019-07-11 | 2019-10-08 | 上海小莫网络科技有限公司 | Water tank and rowing machine |
| CN110302516B (en) * | 2019-07-11 | 2024-05-31 | 上海小莫网络科技有限公司 | Water tank and rowing machine |
| CN113108461B (en) * | 2021-03-30 | 2023-09-08 | 青岛经济技术开发区海尔热水器有限公司 | Machining and assembling method of electric water heater |
| CN113108462A (en) * | 2021-03-30 | 2021-07-13 | 青岛经济技术开发区海尔热水器有限公司 | Electric water heater |
| CN113108461A (en) * | 2021-03-30 | 2021-07-13 | 青岛经济技术开发区海尔热水器有限公司 | Processing and assembling method of electric water heater |
| CN114963534A (en) * | 2021-06-10 | 2022-08-30 | 武汉海尔热水器有限公司 | Water heater |
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