CN201159525Y - Electric shock-proof water storage type electric water heater - Google Patents
Electric shock-proof water storage type electric water heater Download PDFInfo
- Publication number
- CN201159525Y CN201159525Y CNU2007200604952U CN200720060495U CN201159525Y CN 201159525 Y CN201159525 Y CN 201159525Y CN U2007200604952 U CNU2007200604952 U CN U2007200604952U CN 200720060495 U CN200720060495 U CN 200720060495U CN 201159525 Y CN201159525 Y CN 201159525Y
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- inner bag
- pipe
- electric shock
- insulation
- heat
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Abstract
The utility model discloses an anti-electric shock storage-type electric water heater, comprising an outer shell (1), an liner (2) arranged in the outer shell (1), a heating pipe (3) arranged in the liner (2), as well as an anti-electric wall device; a water inlet pipe (4) and a water outlet pipe (5) are arranged on the liner (2); the anti-electric wall device is connected to the end parts of the water inlet pipe (4) and the water outlet pipe (5); the anti-electric wall device comprises two insulation water pipes (6) which are respectively communicated with the water inlet pipe (4) and the water outlet pipe (5); the length value L of the insulation pipe is greater than 53 times of the square of the inner hole radius r of the insulation pipe; wherein, the insulation water pipes are composed of a plurality of pipes which are communicated end to end and side by side; the length of the insulation pipe ensures the security of the user in the case of electricity leakage and can further improve the safety performance of storage-type electric water heaters; as the insulation water pipes are composed of a plurality of pipes which are communicated end to end and side by side, the length of the anti-electric shock device is reduced, and the structure is more compact.
Description
1, technical field:
The utility model relates to a kind of protection against electric shock storage-type electric water heater, especially designs a kind of protection against electric shock structure of protection against electric shock storage-type electric water heater.
2, background technology:
In order to ensure user's safety, existing electric heater is equipped with the device of a protection against electric shock, and anti-electric shock apparatus commonly used has leakage switch and " Fang Dianqiang "." Fang Dianqiang " that company of Haier proposes in " the protection against electric shock type electric heater " of patent No. CN01262062.9, be on water inlet pipe that exposes shell and outlet pipe, to be connected to two insulation tubes respectively, in the sag of two insulation tubes during greater than 53 times of endoporus radius squared, the electric current that can make electric heater remittance leakage reaches the effect of protection against electric shock less than 10mA.This anti-electric wall is simple and cost is low, but general insulation tube is got radius 3-5 centimetre, the length of insulation tube then has 1.3 meters, these two sections insulation tubes are difficult to collection, it is not only attractive in appearance inadequately outward to be exposed at shell, and damaged easily, and insulation tube is once the damaged effect that just can't play anti-electricity has certain potential safety hazard.The safety problem of electric heater does not also thoroughly solve, and is necessary further perfect.In addition, also have some potential safety hazards even disposed " Fang Dianqiang ", for example: because of the electric leakage of inner bag the inside makes inner bag outer surface possibility charged, thereby can not make the parts of inner bag outside charged, comprise shell, hangers etc., the people contacts the back and produces the situation of getting an electric shock.
3, utility model content:
The purpose of this utility model provides a kind of protection against electric shock storage-type electric water heater, and it has improved the structure of electricity-preventing wall device, can guarantee user's safety, further promotes the security performance of storage-type electric water heater, and is simple and compact for structure, easy for installation.
Further purpose of the present utility model provides a kind of protection against electric shock storage-type electric water heater, strengthened the insulation system between heat-generating pipe, inner bag and the shell of electric heater, even the electric leakage accident takes place, can guarantee user's safety, further promote the security performance of storage-type electric water heater.
The utility model is achieved by the following technical solution:
A kind of protection against electric shock storage-type electric water heater, comprise shell, be installed in housings inner bag, be installed in the heat-generating pipe and the electricity-preventing wall device of inner bag the inside, water inlet pipe and outlet pipe are installed on the inner bag, the end of water inlet pipe and outlet pipe also is connected with electricity-preventing wall device, described electricity-preventing wall device comprises the insulation water pipe that two-way is connected with water inlet pipe and outlet pipe respectively, the length numerical value L of insulation tube greater than 53 times of insulation tube endoporus radius r square numerical value, wherein, described insulation water pipe by some side by side and the pipeline that is communicated with of head and the tail form.The advantage of this structure is: even the length of insulation tube has guaranteed to take place the electric leakage accident, also can be to guarantee user's safety, further promote the security performance of storage-type electric water heater, by some side by side and the pipeline that is communicated with of head and the tail form, dwindle the length of anti-electric shock apparatus, it is compact more to make it structure, installs simple and convenient.
Above-mentioned described each road insulation water pipe is divided into 5 segment pipes, and the pipeline of two-way insulation water pipe is divided into two-layer arranging.This topology layout is reasonable, and is simple in structure, easy to manufacture, easy for installation.
Above-mentioned described anti-electric shock apparatus is coated with protective cover outward.Anti-electric shock apparatus is installed in the protective cover, and it is impaired to protect it to be difficult for, and has further improved safety.
The inner surface of above-mentioned described inner bag is provided with insulating barrier, and heat-generating pipe and inner bag assembling place adopt insulator to keep apart.When electric leakage takes place in heat-generating pipe contingency, because the inner bag inner surface is that enamel layer is an insulating barrier, guarantee that the inner bag outer surface is not charged, thereby can not make the parts outside the inner bag charged, further improve the product safety performance.
The heat-generating pipe mount pad is set on the described inner bag, the insulated enclosure lid is installed on the heat-generating pipe mount pad, insulated enclosure lid with heat-generating pipe mount pad and heat-generating pipe portion every getting up, the heat-generating pipe afterbody is installed on the heat-generating pipe mount pad by screw and nut, separates with insulator between nut and screw.This structure guarantees heat-generating pipe and inner bag assembling place insulation, and is simple in structure, easy for installation.
The above-mentioned described hangers that on shell, is equipped with, outside the tank between surface and the shell, adopt insulator to keep apart between inner bag outer surface and the hangers, when the generation of inner bag outer surface contingency is charged, guarantee that shell and hangers and end cap are not charged, further guarantee user's safety.
Above-mentioned described hangers is installed in the surface of shell by screw, and the screw afterbody is isolated by insulator between surface and the shell on passing on the lug that shell is connected to the inner bag outer surface outside the tank, isolates by insulating trip between surface and the hangers outside the tank.Adopt insulator to keep apart between inner bag outer surface and shell, the hangers, simple in structure, easy for installation.
Above-mentioned described insulating trip is to be pressed in below the head of screw, even the inner bag outer surface is charged, also can not be delivered on the hangers by screw.
4, description of drawings:
Below in conjunction with accompanying drawing the utility model is done detailed explanation:
Fig. 1 is a positive generalized section of the present utility model;
Fig. 2 is a side of the present utility model generalized section;
Fig. 3 is the generalized section of anti-electric shock apparatus of the present utility model;
Fig. 4 is the side schematic view of anti-electric shock apparatus of the present utility model;
Fig. 5 is the partial enlarged drawing of A among Fig. 1;
Fig. 6 is that the part of the B among Fig. 2 is put figure greatly.
5, the specific embodiment:
Embodiment: as Fig. 1, shown in Figure 2, the utility model comprises shell 1, be installed in the inner bag 2 of shell 1 the inside, be installed in the heat-generating pipe 3 and the electricity-preventing wall device of inner bag 2 the insides, water inlet pipe 4 and outlet pipe 5 are installed on the inner bag 2, the end of water inlet pipe 4 and outlet pipe 5 also is connected with electricity-preventing wall device, described electricity-preventing wall device comprises the insulation water pipe 6 that two-way is connected with water inlet pipe 4 and outlet pipe 5 respectively, the length numerical value L of insulation tube greater than 53 times of insulation tube endoporus radius r square numerical value, wherein, described insulation water pipe 6 by some side by side and the pipeline that is communicated with of head and the tail form.
As shown in Figure 3, Figure 4, described anti-electric shock apparatus is coated with protective cover 18 outward, and each road insulation water pipe 6 is divided into 5 segment pipes in the anti-electric shock apparatus, and the pipeline of described two-way insulation water pipe 6 is divided into two-layer arranging.
In order to ensure user's safety better, except the electricity-preventing wall device device, the utility model has also installed insulating part additional between inner bag 2 and shell 1 and hangers 13, and concrete installation is as follows:
As shown in Figure 5, the inner surface of described inner bag 2 is provided with insulating barrier 7, insulating barrier 7 is generally enamel layer, heat-generating pipe mount pad 8 is set on the inner bag 2, insulated enclosure lid 11 is installed on the heat-generating pipe mount pad 8, every getting up, heat-generating pipe 3 afterbodys are installed on the heat-generating pipe mount pad 8 by screw 9 and nut 10 insulated enclosure lid 11, get up with insulator 12 separations between nut 10 and screw 9 with heat-generating pipe mount pad 8 and heat-generating pipe 3 portion.When electric leakage takes place heat-generating pipe 3 contingency, can guarantee that the outer surface of inner bag 2 is not charged.As shown in Figure 6, adopting insulator to keep apart between inner bag 2 outer surfaces 14 and the shell 1, between inner bag 2 outer surfaces 14 and the hangers 13.Hangers 13 is installed in the surface of shell 1 by screw 15, screw 15 afterbodys pass on the lug 18 of outer surface 14 that shell 1 is connected to inner bag 2, between inner bag 2 outer surfaces 14 and shell 1, isolate by insulator 16, between the outer surface 14 of inner bag 2 and hangers 13 by insulating trip 17 isolation.Insulating trip 17 is to be pressed in below the head of screw 15.This structure can guarantee that shell 1 and hangers 13 are not charged when the outer surface 14 contingency generations of inner bag 2 are charged.
According to concrete test and with reference to the regulation of GB13955-92 (earth leakage protective device installation and operation), the electric heater leakage current is decided to be 10mA, can guarantee user's safety.When the heating inner bag electric leakage takes place or the direct short circuit of 220V power supply that uses in heated water, dielectric resistance R=220V/10mA=22 * 10 of running water
3Ω.
Because of the electricalresistivity of running water equals 1300 Ω cm, be L if get the length of insulation tube, pore radius is r in the insulation tube, and the dielectric resistance of water is R, and resistivity of water is ρ,
Then:
L＝R·πr
2/ρ＝22×10
3×3.14÷1300≈53r
2
So, so when the big 53 times of endoporus radius r of the length L of insulation tube square, i.e. L＞53r
2, just can guarantee to do anticreep isolation with the water resistance of running water.
Claims (9)
1, a kind of protection against electric shock storage-type electric water heater, comprise shell (1), be installed in the inner bag (2) of shell (1) the inside, be installed in the heat-generating pipe (3) and the electricity-preventing wall device of inner bag (2) the inside, water inlet pipe (4) and outlet pipe (5) are installed on the inner bag (2), the end of water inlet pipe (4) and outlet pipe (5) also is connected with electricity-preventing wall device, described electricity-preventing wall device comprises the insulation water pipe (6) that two-way is connected with water inlet pipe (4) and outlet pipe (5) respectively, the length numerical value L of insulation tube greater than 53 times of insulation tube endoporus radius r square numerical value, it is characterized in that: described insulation water pipe (6) by some side by side and the pipeline that is communicated with of head and the tail form.
2, a kind of protection against electric shock storage-type electric water heater according to claim 1 is characterized in that: the pipeline of described two-way insulation water pipe (6) is divided into two-layer arranging.
3, a kind of protection against electric shock storage-type electric water heater according to claim 2 is characterized in that: described each road insulation water pipe (6) is divided into 5 segment pipes.
4, a kind of protection against electric shock storage-type electric water heater according to claim 3, it is characterized in that: described anti-electric shock apparatus is coated with protective cover (18) outward.
5, according to claim 1 or 2 or 3 or 4 described a kind of protection against electric shock storage-type electric water heaters, it is characterized in that: the inner surface of described inner bag (2) is provided with insulating barrier (7), and heat-generating pipe (3) adopts insulator to keep apart with inner bag (2) assembling place.
6, a kind of protection against electric shock storage-type electric water heater according to claim 5, it is characterized in that: heat-generating pipe mount pad (8) is set on the described inner bag (2), insulated enclosure lid (11) is installed on the heat-generating pipe mount pad (8), insulated enclosure lid (11) with heat-generating pipe mount pad (8) and heat-generating pipe (3) portion every getting up, heat-generating pipe (3) afterbody is installed on the heat-generating pipe mount pad (8) by screw (9) and nut (10), separates to get up with insulator (12) between nut (10) and screw (9).
7, a kind of protection against electric shock storage-type electric water heater according to claim 5, it is characterized in that: hangers (13) is installed on shell (1), is adopting insulator to keep apart between inner bag (2) outer surface (14) and the shell (1), between inner bag (2) outer surface (14) and the hangers (13).
8, a kind of protection against electric shock storage-type electric water heater according to claim 7, it is characterized in that: hangers (13) is installed in the surface of shell (1) by screw (15), screw (15) afterbody passes shell (1) and is connected on the lug (18) on inner bag (2) outer surface (14), between inner bag (2) outer surface (14) and shell (1), isolate, between inner bag (2) outer surface (14) and hangers (13), isolate by insulating trip (17) by insulator (16).
9, a kind of protection against electric shock storage-type electric water heater according to claim 8 is characterized in that: insulating trip (17) is to be pressed in below the head of screw (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200604952U CN201159525Y (en) | 2007-11-28 | 2007-11-28 | Electric shock-proof water storage type electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200604952U CN201159525Y (en) | 2007-11-28 | 2007-11-28 | Electric shock-proof water storage type electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201159525Y true CN201159525Y (en) | 2008-12-03 |
Family
ID=40110108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200604952U Expired - Lifetime CN201159525Y (en) | 2007-11-28 | 2007-11-28 | Electric shock-proof water storage type electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201159525Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546809A (en) * | 2016-01-29 | 2016-05-04 | 宁波帅康热水器有限公司 | Electric water heater |
| CN108344171A (en) * | 2018-02-08 | 2018-07-31 | 厦门阿玛苏电子卫浴有限公司 | Anti-creeping electric water heater |
| CN110160258A (en) * | 2019-05-28 | 2019-08-23 | 广东万博电气有限公司 | A kind of hose type anti-electricity wall and its hot water facility |
| CN114165923A (en) * | 2021-12-12 | 2022-03-11 | 江阴市辉龙电热电器有限公司 | Safety dry-burning-resistant electric heater system |
-
2007
- 2007-11-28 CN CNU2007200604952U patent/CN201159525Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546809A (en) * | 2016-01-29 | 2016-05-04 | 宁波帅康热水器有限公司 | Electric water heater |
| CN108344171A (en) * | 2018-02-08 | 2018-07-31 | 厦门阿玛苏电子卫浴有限公司 | Anti-creeping electric water heater |
| CN108344171B (en) * | 2018-02-08 | 2024-03-19 | 厦门阿玛苏电子卫浴有限公司 | Electric water heater with anti-leakage function |
| CN110160258A (en) * | 2019-05-28 | 2019-08-23 | 广东万博电气有限公司 | A kind of hose type anti-electricity wall and its hot water facility |
| CN114165923A (en) * | 2021-12-12 | 2022-03-11 | 江阴市辉龙电热电器有限公司 | Safety dry-burning-resistant electric heater system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081203 |