CN209877347U - Electric water heater with electric leakage detection function - Google Patents
Electric water heater with electric leakage detection function Download PDFInfo
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- CN209877347U CN209877347U CN201822273258.5U CN201822273258U CN209877347U CN 209877347 U CN209877347 U CN 209877347U CN 201822273258 U CN201822273258 U CN 201822273258U CN 209877347 U CN209877347 U CN 209877347U
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- water heater
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- electric water
- warning device
- leakage detection
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Abstract
The utility model discloses an electric water heater of area electric leakage detection function, include: the power cord comprises a live wire, a zero line and a ground wire; the electric heating water heater is characterized in that an inner container electrified warning device is connected between the inner container and the zero line. The utility model discloses a connect electrified warning device of inner bag between inner bag and zero line, do not need the installation of on-the-spot workman, alarm effect more does not depend on wall body electric conductive property, can automatic warning device when realizing that electric water heater electric leakage or ground wire are electrified, satisfies user's safety bathing demand. Meanwhile, the warning function of abnormal power failure of the electric water heater can be added besides the functions of electrification of the traditional ground wire and electric leakage warning of the electric water heater are kept, so that the household electric water heater is safer for users to use electricity and is a bathing environment.
Description
Technical Field
The utility model relates to an electric water heater technical field especially relates to an electric water heater of area electric leakage detection function.
Background
In the prior art, in order to monitor the electric leakage of an electric water heater or the electrification of a ground wire, a common method in the industry is to remind a user of abnormal electricity consumption through an external electric leakage prompting loop. As shown in fig. 1, it discloses an electric leakage detection device for an electric water heater, which makes a loop formed among an inner container, an alarm unit and a mounting wall, when the electric water heater leaks electricity or the ground wire is electrified, current will flow to the alarm unit through the inner container, and the alarm unit will give out light to prompt.
However, this solution is not only required to be installed by the installer, but also to ensure that the humidity of the wall is not too low, otherwise, when the machine leaks electricity, the wall is too dry and the conductivity is reduced, thus affecting the prompting function of the alarm unit. Meanwhile, the implementation of the scheme easily leads workers to lose the electric leakage reminding function because the workers are not installed due to carelessness of work.
Disclosure of Invention
To the problem that exists among the prior art, the utility model aims at providing an electric water heater that simple structure, installation convenient to use and leakage detection are comprehensive.
In order to achieve the above purpose, the utility model adopts the following technical scheme.
An electric water heater with electric leakage detection function, comprising: the power cord comprises a live wire, a zero line and a ground wire; the electric heating water heater is characterized in that an inner container electrified warning device is connected between the inner container and the zero line.
As a further explanation of the above solution, the inner container live warning device comprises a neon bulb and a resistor connected in series.
As a further explanation of the above scheme, a three-pole disconnecting device is connected to the power line, the three-pole disconnecting device is connected to a control system of the electric water heater, the live warning device is connected to the control system, and the control system controls the three-pole disconnecting device to disconnect three poles of the power line according to a signal fed back by the live warning device.
As a further illustration of the above solution, the resistance of the resistor is between 10 and 1000 kOmega.
As a further explanation of the above scheme, a photosensitive element is arranged corresponding to the neon bulb, the photosensitive element and the neon bulb jointly form a photoelectric converter, and the photoelectric converter is connected with a control system of the electric water heater.
As a further explanation of the above scheme, the photosensitive element is a photoresistor, a photodiode, or a phototriode.
As a further explanation of the above scheme, the inner container live warning device comprises a capacitor, and the capacitor is connected in parallel with the neon bulb lamp and the resistor.
The utility model has the advantages that:
firstly, through connecting the electrified warning device of inner bag between inner bag and zero line, do not need on-the-spot workman to install, the alarm effect does not rely on the wall body electric conductivity yet, can automatic warning device when realizing electric water heater electric leakage or ground wire electrification, satisfies user's safety bathing demand. Meanwhile, the warning function of abnormal power failure of the electric water heater can be added besides the functions of electrification of the traditional ground wire and electric leakage warning of the electric water heater are kept, so that the household electric water heater is safer for users to use electricity and is a bathing environment.
And secondly, a tripolar disconnecting device is arranged on a power line, the electrified warning device of the liner is connected with the tripolar disconnecting device, and when the electrified warning device sends an electric leakage warning signal, tripolar power of the electric water heater is automatically disconnected, so that the safety is better.
Drawings
Fig. 1 is a schematic view of a conventional electric water heater leakage detection structure.
Fig. 2 is a schematic structural diagram of an electric water heater according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of an electric water heater according to a second embodiment of the present invention.
Description of reference numerals:
1: inner container, 2: fire line, 3: zero line, 4: ground wire, 5: electrified warning device of inner bag, 6: three-pole disconnecting device, 7: control system, 8: a light sensitive element.
5-1: neon lamp, 5-2: and (4) resistance.
Detailed Description
In the description of the present invention, it should be noted that, for the orientation words, if there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the present invention and simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and not be construed as limiting the specific scope of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "at least" means one or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
In the present application, unless otherwise specified or limited, "above" or "below" a first feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "above," "below," and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply an elevation which indicates a level of the first feature being higher than an elevation of the second feature. The first feature being "above", "below" and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or merely means that the first feature is at a lower level than the second feature.
The following description will be further made in conjunction with the accompanying drawings of the specification, so that the technical solution and the advantages of the present invention are clearer and clearer. The embodiments described below are exemplary and are intended to be illustrative of the present invention, but should not be construed as limiting the invention.
Example one
As shown in fig. 2, an electric water heater with electric leakage detection function includes: the power cord comprises an inner container 1 and a power cord connected with the inner container 1, wherein the power cord comprises a live wire 2, a zero wire 3 and a ground wire 4; the electric water heater is characterized in that an inner container electrified warning device 5 is connected between the inner container 1 and the zero line 3.
The inner container electrified warning device 5 comprises a neon bulb lamp 5-1 and a resistor 5-2 which are connected in series. The resistance value of the resistor 5-2 is 140k-10M omega.
When the line connection is normal, the ground wire 4 is well grounded, the voltage of the zero line 3 and the ground wire 4 is almost zero, the current cannot flow from the zero line 3 to the ground wire 4 through the warning device 5 due to the action of the resistor 5-2, and the warning device 5 cannot send out an alarm signal.
When the ground wire 4 is in poor contact and other household appliances are leaked electricity or the heating tube is leaked electricity, so that the ground wire 4 is electrified, voltage exists between the ground wire 4 and the zero line 3, current flows to the zero line 3 through the ground wire 4 and the neon bulb lamp 5-1 and the resistor 5-2 of the warning device 5 to form a loop, and the neon bulb lamp 5-1 is lightened to play a warning role.
When the power failure abnormity occurs, namely the zero line 3 is disconnected and the live line 2 is not disconnected, the current flows to the ground wire 4 through the warning device 5. Meanwhile, because the warning device 5 is connected with a large resistor 5-2 in series and the neon bulb 5-1 has the characteristic of small working current, the neon bulb 5-1 in the warning device 5 can be lightened at the moment, but the current is small, so that a dangerous current loop cannot be formed.
When the grounding wire 4 is unqualified in grounding, the grounding wire 4 and the zero line 3 have potential difference, when the potential difference reaches the starting voltage of the neon bulb lamp 5-1, current flows to the grounding wire 4 from the zero line 3 through the warning device 5, and the neon bulb lamp 5-1 in the warning device 5 is lightened to play a warning role.
According to the electric water heater with the electric leakage detection function, the inner container electrified warning device 5 is connected between the inner container 1 and the zero line 3, field workers do not need to install the electric water heater, the warning effect does not depend on the conductivity of a wall body, the electric water heater can automatically warn when the electric water heater leaks electricity or the ground wire is electrified, and the safe bathing requirements of users are met. Meanwhile, the warning function of abnormal power failure of the electric water heater can be added besides the functions of electrification of the traditional ground wire and electric leakage warning of the electric water heater are kept, so that the household electric water heater is safer for users to use electricity and is a bathing environment.
Example two
As shown in fig. 3, the structure of the electric water heater with the electric leakage detection function according to the present embodiment is substantially the same as that of the first embodiment, except that a three-pole disconnecting device 6 is connected to the power line, the three-pole disconnecting device 6 is connected to a control system 7 of the electric water heater, the live warning device 5 is connected to the control system 7, and the control system 7 controls the three-pole disconnecting device 6 to disconnect three poles of the power line according to a signal fed back by the live warning device 5, so as to further improve the safety of the electric water heater.
In this embodiment, the connection between the live warning device 5 and the control system 7 is realized by a photoelectric converter. The neon bulb lamp 5-1 is provided with a photosensitive element 8 correspondingly, and the photosensitive element 8 and the neon bulb lamp 5-1 jointly form a photoelectric converter. The photosensitive element can be a photoresistor, a photodiode or a phototriode.
EXAMPLE III
The structure of the electric water heater with the electric leakage detection function provided by the embodiment is basically the same as that of the embodiment, and the difference is that the inner container electrified warning device comprises a capacitor, and the capacitor is connected with the neon bulb and the resistor in parallel.
It will be understood by those skilled in the art from the foregoing description of the structure and principles that the present invention is not limited to the specific embodiments described above, and that modifications and substitutions based on the known art are intended to fall within the scope of the invention, which is defined by the claims and their equivalents. The details not described in the detailed description are prior art or common general knowledge.
Claims (7)
1. An electric water heater with electric leakage detection function, comprising: the power cord comprises a live wire, a zero line and a ground wire; the electric heating water heater is characterized in that an inner container electrified warning device is connected between the inner container and the zero line.
2. The electric water heater with the electric leakage detection function as claimed in claim 1, wherein the inner container electrified warning device comprises a neon bulb and a resistor which are connected in series.
3. The electric water heater with the electric leakage detection function according to claim 1, wherein a three-pole disconnecting device is connected to the power line, the three-pole disconnecting device is connected to a control system of the electric water heater, the live warning device is connected to the control system, and the control system controls the three-pole disconnecting device to disconnect three poles of the power line according to a signal fed back by the live warning device.
4. An electric water heater with leakage detection function as claimed in claim 2, wherein the resistance of the resistor is 140K-10M Ω.
5. The electric water heater with the electric leakage detection function as claimed in claim 2, wherein a photosensitive element is arranged corresponding to the neon bulb, the photosensitive element and the neon bulb together form a photoelectric converter, and the photoelectric converter is connected with a control system of the electric water heater.
6. The electric water heater with the electric leakage detection function according to claim 5, wherein the photosensitive element is a photo resistor, a photo diode or a photo triode.
7. The electric water heater with the electric leakage detection function as claimed in claim 2, wherein the inner container electrified warning device comprises a capacitor, and the capacitor is connected with the neon bulb and the resistor in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822273258.5U CN209877347U (en) | 2018-12-29 | 2018-12-29 | Electric water heater with electric leakage detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822273258.5U CN209877347U (en) | 2018-12-29 | 2018-12-29 | Electric water heater with electric leakage detection function |
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| Publication Number | Publication Date |
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| CN209877347U true CN209877347U (en) | 2019-12-31 |
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| CN201822273258.5U Active CN209877347U (en) | 2018-12-29 | 2018-12-29 | Electric water heater with electric leakage detection function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654727A (en) * | 2018-12-29 | 2019-04-19 | 广东万家乐燃气具有限公司 | A kind of electric heater and its electrical leakage detecting method with earth leakage detection functions |
-
2018
- 2018-12-29 CN CN201822273258.5U patent/CN209877347U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654727A (en) * | 2018-12-29 | 2019-04-19 | 广东万家乐燃气具有限公司 | A kind of electric heater and its electrical leakage detecting method with earth leakage detection functions |
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