CN203443079U - PTC-heating electric water heater - Google Patents
PTC-heating electric water heater Download PDFInfo
- Publication number
- CN203443079U CN203443079U CN201320512353.0U CN201320512353U CN203443079U CN 203443079 U CN203443079 U CN 203443079U CN 201320512353 U CN201320512353 U CN 201320512353U CN 203443079 U CN203443079 U CN 203443079U
- Authority
- CN
- China
- Prior art keywords
- heating rod
- ptc heating
- water heater
- electric water
- sleeve pipe
- 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
Images
Landscapes
- Resistance Heating (AREA)
Abstract
The utility model provides a PTC-heating electric water heater which comprises an inner container containing water and a PTC heating bar. A waterproof layer is arranged outside the PTC heating bar, so that the PTC heating bar is not in direct contact with water in the inner container, and even when an outer metal pipe of the PTC heating bar is broken, electrical safety of the water heater also can be guaranteed.
Description
Technical field
The utility model relates to electric heater, espespecially a kind of PTC heating electric water heater.
Background technology
Existing PTC heating electric water heater is in water heater liner, to insert PTC heating rod, directly the water holding in inner bag is heated, the structure of PTC heating rod comprises flange and is fixed on the calandria on flange, calandria can be arbitrary shape, as bar-shaped or ring-type, the layer structure in the cross section of calandria comprises: be arranged on outer field metal tube, be arranged on insulating barrier in metal tube, be arranged on some PTC ceramic heating plates in insulating barrier, be arranged on the power-on and power-off pole piece between insulating barrier and some PTC ceramic heating plates and the energising terminal being connected with electrode slice.
The shortcoming of this PTC heating electric water heater is: because PTC heating rod directly contacts with water, once the outer layer metal tracheal rupture of PTC heating rod (due to because of the inner fried piece of PTC), metal tube water proof lost efficacy, it is inner that water can infiltrate by the rent of outer layer metal tube calandria, and wetting insulating barrier, insulating barrier is met water and is lost insulation effect, makes water directly and electrode contact, thereby cause water heater electric leakage, electrical safety accident occurs.
Utility model content
The shortcoming existing for above-mentioned prior art, the utility model proposes a kind of electric heater in PTC heating rod outside with water barrier, the electric heater that PTC heating rod is not directly contacted with water in inner bag, even if make to occur the fortuitous events such as PTC heating rod outer layer metal tracheal rupture, also can guarantee the electric security performance of water heater.
Above-mentioned the purpose of this utility model is to be realized by following technical scheme:
The PTC heating electric water heater that the utility model provides, except setting up water barrier, other structures of water heater have been all known technologies, do not repeat them here.
The utility model provides a kind of PTC heating electric water heater, has inner bag and the PTC heating rod of splendid attire water, and described PTC heating rod has water barrier outward.
In the first embodiment of PTC heating electric water heater as above, described heating rod is inserted in the inner chamber of described inner bag, and the outside of described heating rod bag is provided with described water barrier.
Wherein, described water barrier is the sleeve pipe being set in outside described heating rod.
Also or, described water barrier is the surface-treated layer that is formed on described heating rod outer surface.
PTC heating electric water heater as above, the surface of described heating rod is metal shell, described surface-treated layer can be any one of coating, thermally sprayed coating, anodic oxide coating, passivation layer or enamel layer.
In the second embodiment of PTC heating electric water heater as above, described inner bag offers bottoming hole, described water barrier forms the sleeve pipe with blind end and open end, the blind end of described sleeve pipe stretches into interior gallbladder intracavity along this bottoming hole, and the open end of sleeve pipe and the edge seal of bottoming hole are fixed, described heating rod stretches in sleeve pipe fixing.
In above-mentioned the first and the second embodiment, the body of described sleeve pipe is metal material or ceramic material.
The medial surface of the described sleeve pipe of PTC heating electric water heater as above and the lateral surface of described heating rod fits tightly or its two between be filled with heat-conducting medium.
PTC heating electric water heater as above, described heat-conducting medium is fluid.
PTC heating electric water heater as above, the cross section of described sleeve pipe is rectangular or circular.
In the third embodiment of PTC heating electric water heater as above, described PTC heating rod is fixed on the outside wall surface of described inner bag, and described inner bag forms described water barrier in the region of the described heating rod of correspondence.
PTC heating electric water heater as above, described PTC heating rod is fixed on the outside wall surface of described inner bag by fixed support.
PTC heating electric water heater as above, described inner bag is formed with to be installed with the inner fovea part of described heating rod, and the shape of the shape of inner fovea part and PTC heating rod is adaptive.
By above technical scheme, advantage and disadvantage of the present utility model is:
Water barrier of the present utility model can be transmitted to the internal heat of PTC heating rod in water, can not affect heat conduction; And water barrier is kept apart PTC heating rod and water, even if the metal shell of PTC heating rod breaks, water in inner bag also cannot infiltrate and soak the insulating barrier of PTC heating rod, guaranteed that insulating barrier can failure of insulation, thereby the electrode slice that guarantees PTC heating rod contacts with water in no instance, has avoided the generation of electric leakage accident; In addition,, because water barrier itself also may have certain thermal capacity, then can reduce and sharply change the impact to PTC heating rod because of water temperature.
Accompanying drawing explanation
Fig. 1 a is the schematic diagram of the utility model the first and the second embodiment.
Fig. 1 b is that the utility model the first embodiment is at the partial enlarged drawing of inner bag and water barrier junction.
Fig. 1 c is that the utility model the second embodiment is at the partial enlarged drawing of inner bag and water barrier junction.
Fig. 2 is arranged with the structural representation of the PTC heating rod of sleeve pipe in the utility model the first embodiment.
Fig. 3 a to Fig. 3 g is the A-A cutaway view in Fig. 2, wherein exemplifies in the utility model the first and the second embodiment a plurality of embodiment of heating rod and outer sleeve.
Fig. 4 a is the schematic diagram of the utility model the 3rd embodiment.
Fig. 4 b is the B-B cutaway view of Fig. 4 a.
The specific embodiment
First it should be noted that, in the utility model, the term of all references " ecto-entad " refers to the direction from the radial outside of heating rod to radially inner side.And term " PTC " refers to: Positive Temperature Coefficient (positive temperature coefficient), very large semi-conducting material or the components and parts of general reference positive temperature coefficient.
Refer to Fig. 1 a, the utility model provides a kind of PTC heating electric water heater, inner bag 500 and the PTC heating rod 100 with splendid attire water, the structure of heating rod 100 is referring to Fig. 3 a, comprise the metal shell 11 that ecto-entad sets gradually, insulating barrier 12, electrode slice 13 and PTC fever tablet 14, one end of heating rod is provided with energising terminal 16(as shown in Figure 2), described PTC fever tablet 14 is located between the medial surface of two-layer electrode slice 13, the medial surface laminating of the lateral surface of described electrode slice 13 and insulating barrier 12, the energising terminal 16 being electrically connected to described electrode slice 13 is connected in peripheral control unit (not shown), described PTC heating rod 100 and described inner bag 500 in water between be provided with water barrier 15, be to there is the water barrier 15 that PTC heating rod 100 is not directly contacted with water outside described PTC heating rod 100.
Wherein, the layout of water barrier 15 can be implemented according to following three kinds of modes:
embodiment one:
Consult Fig. 1 a, Fig. 1 b and Fig. 2, the outside bag of metal shell 11 of heating rod 100 is provided with described water barrier 15, and this water barrier 15 forms integral body with heating rod 100, and is inserted in the inner chamber of described inner bag 500.Preferably, heating rod 100 external overall bags are provided with water barrier 15.This kind of embodiment has larger advantage in overhaul of the equipments, can the water in emptying inner bag after, directly the integral body of heating rod and sleeve is removed fixingly from inner bag, and take out maintenance, saved loaded down with trivial details dismounting operation.
Wherein, embodiment one has two preferred embodiments, one:
Described water barrier 15 is for to be set in the sleeve pipe outside described heating rod 100 housings 11, as Fig. 2 and Fig. 3 a.
Preferably, the body of described sleeve pipe is metal material or ceramic material, and the material with better thermal conductivity and durability of take is preferred material, makes water barrier 15 have the performance that can not break easily.
Wherein, the medial surface of described water barrier 15 and heating rod 100 housing 11 lateral surfaces can fit tightly, and example as shown in Figure 3 b, makes heat conduction rapidly continuously;
And between the medial surface of water barrier 15 and heating rod 100 housing 11 lateral surfaces, also can there is gap, and example as shown in Figure 3 a, is filled with heat-conducting medium 17 in gap, and described heat-conducting medium 17 is preferably fluid.Whereby; once heating rod 100 metal shells 11 break (due to because of the inner fried piece of PTC); vibration and the deformation producing of breaking can not be directly passed to outside coated water barrier 15, but produces buffering by heat-conducting medium 17, has so just more protected the integrality of water barrier 15.
PTC heating electric water heater as above, the cross section of described sleeve pipe is rectangular or circular alternatively, as shown in Fig. 3 a to Fig. 3 g.
In accompanying drawing, in the embodiment shown in Fig. 3 a, water barrier 15(sleeve pipe) cross section is rectangle, is provided with the heating rod 100 of a square-section in water barrier 15, between heating rod 100 and water barrier 15, is filled with heat-conducting medium 17.
Basic identical in embodiment shown in Fig. 3 b and Fig. 3 a, difference is to be closely connected between heating rod 100 and water barrier 15, and heat-conducting medium is not set.
In embodiment shown in Fig. 3 c, water barrier 15(sleeve pipe) cross section is rectangle, is stacked with the heating rod 100 of two square-sections in water barrier 15.
In embodiment shown in Fig. 3 d, water barrier 15(sleeve pipe) cross section is circular, is stacked with the heating rod 100 of two square-sections in water barrier 15.
In embodiment shown in Fig. 3 e, water barrier 15(sleeve pipe) cross section is circular, in water barrier 15, be positioned at the heating rod 100 that medium position is provided with a square-section, and between the heating rod outer wall of circular cross-section water barrier inwall and square-section, be filled with heat-conducting medium 17.
In embodiment shown in Fig. 3 f, water barrier 15(sleeve pipe) cross section is square, is provided with the heating rod 100 of a circular cross-section in water barrier 15.
In embodiment shown in Fig. 3 g, water barrier 15(sleeve pipe) cross section is circular, is provided with one heart the heating rod 100 of a circular cross-section in water barrier 15.
Its two:
Described water barrier 15 is for being formed on the surface-treated layer of heating rod 100 metal shell 11 outer surfaces, and surface-treated layer has increased the intensity of metal shell, makes it be difficult for generation and breaks; Meanwhile, surface treatment layer thickness is very little, also has and makes the heat of heating element heater conduct to quickly the advantage in outside water.
Described surface-treated layer can be any one of coating, thermally sprayed coating, anodic oxide coating, passivation layer or enamel layer.
embodiment two:
Consult Fig. 1 a and Fig. 1 c, described inner bag 500 offers bottoming hole 51, described water barrier 15 forms the sleeve pipe with blind end and open end 151, the blind end of described sleeve pipe stretches into interior gallbladder intracavity along this bottoming hole 51, and the open end 151 of sleeve pipe is fixed with the edge seal of bottoming hole 51, described heating rod 100 can be stretched in sleeve pipe fixing, and make the energising terminal 16 of heating rod 100 one end be positioned at open end 151 1 sides of described sleeve pipe, as shown in Fig. 1 c.This kind of embodiment is convenient to change PTC heating rod, can easily existing any heating rod be inserted in sleeve pipe fixing, and without any sealing process, just can open electrical heating work, also without the water in emptying inner bag, very convenient for changing existing PTC heating rod during dismounting.Preferably, the body of described sleeve pipe is metal material or ceramic material, and the material with better thermal conductivity and durability of take is preferred material, makes water barrier 15 have the performance that can not break easily.
Wherein, the medial surface of described water barrier 15 and heating rod 100 housing 11 lateral surfaces can fit tightly, and example as shown in Figure 3 b, makes heat conduction rapidly continuously;
And between the medial surface of water barrier 15 and heating rod 100 housing 11 lateral surfaces, also can there is gap, and as Fig. 3 a, in gap, being filled with heat-conducting medium 17, described heat-conducting medium 17 is preferably fluid.Whereby; once metal shell 11 breaks (due to because of the inner fried piece of PTC); vibration and the deformation producing of breaking can not be directly passed to outside coated water barrier 15, but produces buffering by heat-conducting medium 17, has so just more protected the integrality of water barrier 15.
For convenience of processing, the cross section of described sleeve pipe is rectangular or circular alternatively, as shown in Fig. 3 a to Fig. 3 g.
embodiment three:
Described PTC heating rod 100 is fixed on the outside wall surface of described inner bag 500, and as Fig. 4 a and 4b, described inner bag 500 forms described water barrier 15 in the region of the described heating rod 100 of correspondence.Preferably, the outside wall surface of inner bag 500 can be radially and/or axial restraint organize heating rod 100 more, to improve the efficiency of heating surface.The advantage of this embodiment be to have saved to material thermal conductivity can and water isolating collar tube sub-assembly preferably, also without carrying out surface treatment at heating rod skin, saving material cost.
Preferably, described PTC heating rod 100 is fixed on the outside wall surface of described inner bag 500 by fixed support 19, as Fig. 4 b.Wherein each heating rod 100 can be fixed by independent fixed support 19 and inner bladder outer wall, can be also that a plurality of heating rods 100 are fixed by a fixed support 19 and inner bladder outer wall.
Preferably, described inner bag 500 is formed with to be installed with the inner fovea part (not shown) of described heating rod 100, and the shape of the shape of inner fovea part and PTC heating rod 100 is adaptive.Whereby, can provide heating rod 100 better heating effect.
Above for being only the schematic part embodiment of the utility model; not in order to limit scope of the present utility model; any those skilled in the art; do not departing from equivalent variations and the modification of having done under the prerequisite of design of the present utility model and principle, within all should being included in this patent protection domain.
Claims (14)
1. a PTC heating electric water heater, has inner bag and the PTC heating rod of splendid attire water, it is characterized in that: described PTC heating rod has water barrier outward.
2. PTC heating electric water heater according to claim 1, is characterized in that, described heating rod is inserted in the inner chamber of described inner bag, and the outside of described heating rod bag is provided with described water barrier.
3. PTC heating electric water heater according to claim 2, is characterized in that, described water barrier is the sleeve pipe being set in outside described heating rod.
4. PTC heating electric water heater according to claim 2, is characterized in that, described water barrier is the surface-treated layer that is formed on described heating rod outer surface.
5. PTC heating electric water heater according to claim 4, is characterized in that, the surface of described heating rod is metal shell, and described surface-treated layer can be any one of coating, thermally sprayed coating, anodic oxide coating, passivation layer or enamel layer.
6. PTC heating electric water heater according to claim 1, it is characterized in that, described inner bag offers bottoming hole, described water barrier forms the sleeve pipe with blind end and open end, the blind end of described sleeve pipe stretches into interior gallbladder intracavity along this bottoming hole, and the open end of sleeve pipe and the edge seal of bottoming hole are fixed, described heating rod stretches in sleeve pipe fixing.
7. according to the PTC heating electric water heater described in claim 3 or 6, it is characterized in that, the body of described sleeve pipe is metal material or ceramic material.
8. according to the PTC heating electric water heater described in claim 3 or 6, it is characterized in that, the medial surface of described sleeve pipe and the lateral surface of described heating rod fit tightly.
9. according to the PTC heating electric water heater described in claim 3 or 6, it is characterized in that, between the medial surface of described sleeve pipe and the lateral surface of described heating rod, be filled with heat-conducting medium.
10. PTC heating electric water heater according to claim 9, is characterized in that, described heat-conducting medium is fluid.
11. according to the PTC heating electric water heater described in claim 3 or 6, it is characterized in that, the cross section of described sleeve pipe is rectangular or circular.
12. PTC heating electric water heaters according to claim 1, is characterized in that, described PTC heating rod is fixed on the outside wall surface of described inner bag, and described inner bag forms described water barrier in the region of the described heating rod of correspondence.
13. PTC heating electric water heaters according to claim 12, is characterized in that, described PTC heating rod is fixed on the outside wall surface of described inner bag by fixed support.
14. according to the PTC heating electric water heater described in claim 12 or 13, it is characterized in that, described inner bag is formed with to be installed with the inner fovea part of described heating rod, and the shape of the shape of inner fovea part and PTC heating rod is adaptive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320512353.0U CN203443079U (en) | 2013-08-21 | 2013-08-21 | PTC-heating electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320512353.0U CN203443079U (en) | 2013-08-21 | 2013-08-21 | PTC-heating electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203443079U true CN203443079U (en) | 2014-02-19 |
Family
ID=50094128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320512353.0U Expired - Lifetime CN203443079U (en) | 2013-08-21 | 2013-08-21 | PTC-heating electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203443079U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402825A (en) * | 2015-12-08 | 2016-03-16 | 芜湖恒美电热器具有限公司 | PTC air purification humidifier for air conditioner |
| CN105423540A (en) * | 2015-12-08 | 2016-03-23 | 芜湖恒美电热器具有限公司 | Novel electromagnetic heating water heater |
| CN105423539A (en) * | 2015-12-08 | 2016-03-23 | 芜湖恒美电热器具有限公司 | Photovoltaic heating PTC electric water heater |
| CN105444421A (en) * | 2015-12-08 | 2016-03-30 | 芜湖恒美电热器具有限公司 | Dry-burning-preventing alarm PTC electric water heater |
-
2013
- 2013-08-21 CN CN201320512353.0U patent/CN203443079U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402825A (en) * | 2015-12-08 | 2016-03-16 | 芜湖恒美电热器具有限公司 | PTC air purification humidifier for air conditioner |
| CN105423540A (en) * | 2015-12-08 | 2016-03-23 | 芜湖恒美电热器具有限公司 | Novel electromagnetic heating water heater |
| CN105423539A (en) * | 2015-12-08 | 2016-03-23 | 芜湖恒美电热器具有限公司 | Photovoltaic heating PTC electric water heater |
| CN105444421A (en) * | 2015-12-08 | 2016-03-30 | 芜湖恒美电热器具有限公司 | Dry-burning-preventing alarm PTC electric water heater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203443079U (en) | PTC-heating electric water heater | |
| US8569663B2 (en) | Small-sized pool and PTC heater for internal liquid heating | |
| KR20130004574U (en) | Porcelain-energy heater | |
| CN206540988U (en) | A kind of sleeve pipe paper oil insulation electric heating combines senile experiment device | |
| CN205398985U (en) | Domestic appliance control by temperature change connection structure | |
| CN103369748B (en) | Electric heating tube for heating liquid | |
| CN104214932A (en) | Water-cooling pre-heating heating body | |
| CN104006893A (en) | Temperature sensor with multi-protection function | |
| CN202261866U (en) | Instant heating type stool ceramic heating unit | |
| CN202858805U (en) | Direct temperature-sensing type electric cooker | |
| CN202035160U (en) | Liquid heating rod with electric heating film heating pipe | |
| CN102281653A (en) | Liquid heating rod provided with electric heating film heating tube | |
| CN201374826Y (en) | Electric heating tube device internally provided with thermal protection switch component | |
| CN205159211U (en) | Hot protector of self -sustaining formula | |
| CN202853095U (en) | Instant electric water heater | |
| CN104724412A (en) | Chemical storage tank | |
| CN103017321A (en) | Split type electromagnetic liquid heater | |
| CN205946208U (en) | Utensil dual layer protection's electric heater unit | |
| CN204394225U (en) | The vehicle-mounted hot water cup inner bag of a kind of electrothermal membrane type | |
| CN206271647U (en) | The Thermal Cutoffs insulating heat-conductive structure of water heater | |
| KR101103978B1 (en) | Apparatus for heating gas of high temperature and high pressure | |
| CN202853092U (en) | Annular quickly-heated type heater | |
| CN206061185U (en) | A kind of Mini electric radial canal | |
| CN205006643U (en) | Multi -functional connector seat of honour | |
| CN203893948U (en) | Multi-protection temperature sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140219 |
|
| CX01 | Expiry of patent term |