CN2589888Y - Electric shock resistant electric water heater - Google Patents
Electric shock resistant electric water heater Download PDFInfo
- Publication number
- CN2589888Y CN2589888Y CN 02250453 CN02250453U CN2589888Y CN 2589888 Y CN2589888 Y CN 2589888Y CN 02250453 CN02250453 CN 02250453 CN 02250453 U CN02250453 U CN 02250453U CN 2589888 Y CN2589888 Y CN 2589888Y
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- tube connector
- water
- electric
- electric shock
- insulation layer
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- Expired - Fee Related
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- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
The utility model provides an electric shock prevention electric water heater which comprises a housing, a heat insulation layer, an inner bag, a water inlet connection pipe and a water outlet connection pipe, wherein the heat insulation layer is positioned between the housing and the inner container, and the water inlet connection pipe and the water outlet connection pipe are insulation pipes which are positioned in the heat insulation layer and are respectively connected with the inner bag. The electric shock prevention electric water heater has the advantages of good electric shock prevention performance, beautiful appearance, simple manufacture process, low processing difficulty and cost and simple maintenance and repair.
Description
Technical field
The utility model relates to the electric heater technology, particularly a kind of anti-electric shock type electric water heater.
Background technology
The most frequently used anticreep mode of existing electric heater mainly contains two kinds: a kind of is to adopt earth leakage circuit-breaker, and another kind is that the electric leakage automatic detection device is installed on electric heater; This dual mode all dependence to device is stronger, just in case earth leakage circuit-breaker or automatic detection device damage or be malfunctioning, will produce potential safety hazard; In order to overcome the shortcoming of prior art, people have developed a kind of new anticreep method, under the situation of water heater contingency electric leakage, utilize the resistance of water that the electric current by the insulation tube connector is dropped to below the safe current to guarantee user's safety, and develop corresponding electric heater product, adopt two insulation tubes to be connected on the outer inlet tube and outlet tube of electric heater shell, the length of insulation tube satisfies L＞53r
2Requirement (r is a water-in and water-out pipe orifice radius); though provide convenience for removing and installing of water heater with maintenance but this product insulation tube is external; but but influence the profile of electric heater; and be located at outside structure and be collided easily and damage; protect the stable of its structure of support so need to increase other member, this must increase production cost.In order further to improve this product, application number is to disclose a kind of " anti-electric shock type electric water heater " this electric heater external built-in being arranged in the inner container of electric water heater chamber of insulation tube in the past in 01269174.7 the Chinese utility model patent, and its length still satisfies L＞53r
2Requirement, this built-in electric heater outward appearance is comparatively attractive in appearance, and reduced the requirement of installing, fault rate is also lower, but it also exists a significantly deficiency: insulation tube is installed into manufacturing process more complicated in the inner container of electric water heater chamber, difficulty of processing is big, production cost is higher, and also be unfavorable for the maintenance and the maintenance of electric heater, insulation is soaked in the hot water in the internal bladder cavity aging easily, service life is short, and because insulation tube and inner bag are as a whole, so maintenance and replacing are relatively more difficult.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of prior art, provides that a kind of rational in infrastructure, manufacturing process is simple, production cost is lower, the anti-electric shock type electric water heater of appearance looks elegant.
The purpose of this utility model is achieved through the following technical solutions: this anti-electric shock type electric water heater comprises shell, heat-insulation layer, inner bag, water inlet tube connector and water outlet tube connector, heat-insulation layer is between shell and inner bag, water inlet tube connector and water outlet tube connector are insulation tube, are positioned at heat-insulation layer and also are connected with inner bag respectively.
Described water inlet tube connector and water outlet tube connector are the insulation tube of straight tube, ring pipe, spiral element, waveform pipe, curved pipe and other shape.
Described water inlet tube connector is connected with inner bag by admitting pipe joint and titting water outlet respectively with the water outlet tube connector.
The total length L of described water inlet tube connector and water outlet tube connector satisfies L＞53r
2The requirement of (r is a water-in and water-out pipe orifice radius); With reference to GB13955-52 (earth leakage protective device installation and operation) regulation, the electric heater leakage current is decided to be 10mA, can guarantee user's safety, as calculated, work as the length L＞53r of insulation tube as can be known
2, just can guarantee that doing anticreep isolation with the water resistance of running water drops to below the 10mA leakage current.
Described heat-insulation layer is a plastic foam material.
The utility model compared with prior art has following advantage: what this anti-electric shock type electric water heater will intake that tube connector and water outlet tube connector be located at that heat insulation layer structure between inner bag and the shell can make water heater keeps good looking appearance when having electroshock-proof function; Because water inlet tube connector and water outlet tube connector need not fit in the internal bladder cavity, so manufacture craft is simplified greatly, difficulty of processing reduces, and cost can obviously reduce; On the other hand, the electric heater of this structure water inlet tube connector and water outlet tube connector are positioned at heat-insulation layer, can prevent to wear out, and make M R more simple and easy; Simultaneously, heat-insulation layer can also protect water inlet tube connector and water outlet tube connector not to be subjected to the influence of external impacts, uses safer reliable.
Description of drawings
Fig. 1 is the structural representation of the utility model anti-electric shock type electric water heater.
Fig. 2 is the schematic diagram of another structure of the utility model anti-electric shock type electric water heater.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further concrete description, but embodiment of the present utility model is not limited thereto.
Fig. 1 shows a kind of embodiment of the present utility model, as seen from Figure 1, this anti-electric shock type electric water heater comprises shell 1, heat-insulation layer 2, inner bag 3, water inlet tube connector 5 and water outlet tube connector 6, heat-insulation layer 2 is between shell 1 and inner bag 3, make with foamed plastic, water inlet tube connector 5 is straight insulation tube with water outlet tube connector 6, is positioned at heat-insulation layer 2 and is connected the total length L＞53r of water inlet tube connector 5 and water outlet tube connector 6 respectively by admitting pipe joint 4 and titting water outlet 7 with inner bag 3
2(r is a water-in and water-out pipe orifice radius).
Fig. 2 shows another kind of embodiment of the present utility model, and as seen from Figure 2, this anti-electric shock type electric water heater is identical with embodiment 1 except that following structure: the water inlet tube connector 5 be ring pipe, be looped around inner bag 3 around; This structure can make full use of the space of heat-insulation layer 2, increases the length of insulation tube, satisfies safe requirement better.
Claims (5)
1, a kind of anti-electric shock type electric water heater, comprise shell (1), heat-insulation layer (2), inner bag (3), water inlet tube connector (5) and water outlet tube connector (6), heat-insulation layer (2) is positioned between shell (1) and the inner bag (3), it is characterized in that: water inlet tube connector (5) is an insulation tube with water outlet tube connector (6), is positioned at heat-insulation layer (2) and also is connected with inner bag (3) respectively.
2, anti-electric shock type electric water heater according to claim 1 is characterized in that: described water inlet tube connector (5) is straight tube, ring pipe, spiral element, waveform pipe, curved pipe with water outlet tube connector (6).
3, anti-electric shock type electric water heater according to claim 1 is characterized in that: described water inlet tube connector (5) is connected with inner bag (3) by admitting pipe joint (4) and titting water outlet (7) respectively with water outlet tube connector (6).
4, anti-electric shock type electric water heater according to claim 1 is characterized in that: described water inlet tube connector (5) satisfies L＞53r with the total length L of water outlet tube connector (6)
2, r is a water-in and water-out pipe orifice radius.
5, anti-electric shock type electric water heater according to claim 1 is characterized in that: described heat-insulation layer (2) is a plastic foam material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02250453 CN2589888Y (en) | 2002-12-19 | 2002-12-19 | Electric shock resistant electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02250453 CN2589888Y (en) | 2002-12-19 | 2002-12-19 | Electric shock resistant electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2589888Y true CN2589888Y (en) | 2003-12-03 |
Family
ID=33720676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02250453 Expired - Fee Related CN2589888Y (en) | 2002-12-19 | 2002-12-19 | Electric shock resistant electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2589888Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100400980C (en) * | 2005-12-14 | 2008-07-09 | 欧永源 | Anti-electric shock type electric water heater |
| CN102654310A (en) * | 2011-03-04 | 2012-09-05 | 三菱电机株式会社 | Hot water supply system |
| CN105318529A (en) * | 2014-07-22 | 2016-02-10 | 广东顺德光晟电器股份有限公司 | Separated type medium-and-low pressure bearing electric water heater |
-
2002
- 2002-12-19 CN CN 02250453 patent/CN2589888Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100400980C (en) * | 2005-12-14 | 2008-07-09 | 欧永源 | Anti-electric shock type electric water heater |
| CN102654310A (en) * | 2011-03-04 | 2012-09-05 | 三菱电机株式会社 | Hot water supply system |
| CN102654310B (en) * | 2011-03-04 | 2014-12-24 | 三菱电机株式会社 | Hot water supply system |
| CN105318529A (en) * | 2014-07-22 | 2016-02-10 | 广东顺德光晟电器股份有限公司 | Separated type medium-and-low pressure bearing electric water heater |
| CN105318529B (en) * | 2014-07-22 | 2019-03-29 | 广东光晟物联股份有限公司 | Low pressure-bearing electric heater in separate type |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: FOSHAN MEDIA DAILYELECTRIC APPLIANCE GROUP CO.,LT Free format text: FORMER OWNER: MEIDI GROUP CO LTD, GUANGDONG Effective date: 20050805 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20050805 Address after: 528311 Penglai Road, Beijiao Town, Shunde District, Guangdong, Foshan Patentee after: Meidi Daily electrical Appliances Co., Ltd., Foshan City Address before: 528311 Penglai Road, Beijiao Town, Shunde, Guangdong Patentee before: Meidi Group Co., Ltd., Guangdong |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031203 Termination date: 20100119 |