CN210107772U - Electric shock preventing device of electric water heater - Google Patents
Electric shock preventing device of electric water heater Download PDFInfo
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- CN210107772U CN210107772U CN201822088340.0U CN201822088340U CN210107772U CN 210107772 U CN210107772 U CN 210107772U CN 201822088340 U CN201822088340 U CN 201822088340U CN 210107772 U CN210107772 U CN 210107772U
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Abstract
An electric shock prevention device of an electric water heater comprises the electric water heater, wherein the electric shock prevention device is arranged between a water inlet and a water outlet of the electric water heater and a water mixing valve and comprises a first insulating pipe, a second insulating pipe and a box body for containing the first insulating pipe and the second insulating pipe, one end of the first insulating pipe is connected with the water inlet of the electric water heater, the other end of the first insulating pipe is connected with a cold water inlet of the water mixing valve, one end of the second insulating pipe is connected with the water outlet of the electric water heater, the other end of the second insulating pipe is connected with a hot water inlet of the water mixing valve, and the box body is fixed on a wall. The utility model discloses an electric water heater's protection against electric shock device passes through the partial pressure of insulating tube, makes electric water heater can reduce the human voltage of flowing through under the electric leakage condition, ensures human safety. And the insulating tube is arranged in the box body, so that the structure is simple, the cleanness and the safety are high, and the water flowing through the water pipe can be prevented from being influenced by the external temperature.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to an electric shock prevention device especially relates to an electric shock prevention device of electric water heater of simple structure, security height.
[ background of the invention ]
The existing electric water heater has the following electric shock prevention modes: one is to set up the leakage switch, when the leakage current exceeds the specified value, can cut off the power automatically, guarantee the users' safety of the electric water heater; one is to install an automatic leakage detection device on the electric water heater, when the leakage current exceeds a specified index, an alarm is automatically given to remind the user to turn off the power supply, so as to ensure the life safety of the user; one is a water and electricity isolation method, namely a heating mode of separating water and electricity; the other is water outlet power failure, namely when a user opens a hot water switch, hot water flows out, the electric water heater is powered off and does not heat. In the case of any of the above electric shock protection devices, when the electric shock protection device is damaged or fails, the electric shock protection device is damaged or fails to cause danger when electricity is leaked, and even threatens the life safety of a user. The current commonly used electric shock prevention device is an electric shock prevention wall which obstructs current by increasing the flow of a water inlet and a water outlet, but the electric shock prevention effect is poor due to the limited flow length. In order to ensure the life safety of users of the electric water heater, if two very long insulating pipes are respectively connected to the water inlet and the water outlet of the electric water heater, the method can achieve the purpose of electric shock prevention, but the pipes are exposed outside and are very messy, and in alpine regions, hot water flows through the long insulating pipes, so that the water temperature is easily reduced under the influence of the external environment. Therefore, how to provide an economical, simple, safe, practical and reliable electric shock prevention device becomes an objective requirement.
[ summary of the invention ]
The present invention is directed to solve the above problems, and provides an electric shock protection device for an electric water heater with simple structure and high safety.
The utility model discloses an electric water heater's protection against electric shock device, including electric water heater, be equipped with the protection against electric shock device between electric water heater's water inlet, delivery port and the muddy water valve, the protection against electric shock device includes first insulating tube, second insulating tube and accomodates the box body of first insulating tube, second insulating tube, the one end of first insulating tube is connected with electric water heater's water inlet, and the other end is connected with muddy water valve's cold water inlet, the one end of second insulating tube is connected with electric water heater's delivery port, and the other end is connected with muddy water valve's hot water inlet, the box body is fixed in on the wall that is located electric water heater below.
The square ratio of the length to the radius of the first insulating tube and the second insulating tube is not less than 53.14r2。
And two ends of the first insulating pipe and the second insulating pipe are respectively connected with a water inlet and a water outlet of the electric water heater and a cold water inlet and a hot water inlet of the water mixing valve through adapters.
And a safety valve is arranged between the first insulating pipe and the water inlet of the electric water heater.
The first insulating tube and the second insulating tube are fixed in the box body in an annular, snake-shaped or spiral mode.
The utility model also provides an electric shock prevention device of another kind of electric water heater, including electric water heater, be equipped with the electric shock prevention device between electric water heater's water inlet, delivery port and the muddy water valve, the electric shock prevention device includes third insulating tube, fourth insulating tube and accomodates the first box body, the second box body of third insulating tube, fourth insulating tube respectively, the one end of third insulating tube is connected with electric water heater's water inlet, and the other end is connected with muddy water valve's cold water inlet, the one end of fourth insulating tube is connected with electric water heater's delivery port, and the other end is connected with muddy water valve's hot water inlet, first box body, second box body are fixed in respectively on the wall that is located electric water heater below.
The third insulating pipe and the fourth insulating pipe are respectively in threaded connection with a water inlet of the electric water heater, a cold water inlet of the water mixing valve, a water outlet of the electric water heater and a hot water inlet of the water mixing valve.
The square ratio of the length to the radius of the third insulating tube and the fourth insulating tube is not less than 53.14r2。
The water inlet connecting end of the third insulating pipe and the electric water heater is an L-shaped pipe, the connecting end of the third insulating pipe and the water mixing valve is an L-shaped pipe, the middle part of the third insulating pipe is contained in the first box body, the connecting end of the fourth insulating pipe and the water outlet of the electric water heater is an L-shaped pipe, the connecting end of the fourth insulating pipe and the water mixing valve is an L-shaped pipe, and the middle part of the fourth insulating pipe is contained in the second box body.
And a safety valve is arranged between the third insulating pipe and the water inlet of the electric water heater or between the third insulating pipe and the cold water inlet of the water mixing valve.
The middle parts of the third insulating pipe and the fourth insulating pipe are fixed in the first box body and the second box body respectively in an annular, snake-shaped or spiral mode.
The first box body and the second box body are integrated into a whole
The utility model provides a current electric water heater security poor, the problem that protection against electric shock device structure is complicated. The utility model discloses an electric water heater's protection against electric shock device is through setting up the protection against electric shock device between water inlet, delivery port and the muddy water valve at electric water heater, and this protection against electric shock device includes insulating tube and box body, through the partial pressure of insulating tube, makes electric water heater can reduce the human voltage of flowing through under the electric leakage condition, ensures human safety. And the insulating tube is arranged in the box body, so that the structure is simple, the cleanness and the safety are high, and the water flowing through the water pipe can be prevented from being influenced by the external temperature.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is another schematic structural diagram of the present invention.
[ detailed description ] embodiments
The following examples are further to explain and supplement the present invention, and do not constitute any limitation to the present invention.
Example 1
Referring to fig. 1, the electric shock protection device of the electric water heater of the present invention includes an electric water heater 10, an electric shock protection device 20, an adaptor 30 and a safety valve 40.
As shown in fig. 1, the electric water heater 10 is a water storage type electric water heater, and is provided with a water inlet 11 and a water outlet 12. One end of the water inlet 11 is connected with the bottom of the electric water heater 10, the other end is connected with the cold water inlet of the water mixing valve 13 through a water pipe, one end of the water outlet 12 is connected with the bottom of the electric water heater 10, and the other end is connected with the hot water inlet of the water mixing valve 13 through a water pipe.
As shown in fig. 1, an electric shock preventing device 20 is disposed between the water inlet 11, the water outlet 12 and the water mixing valve 13 of the electric water heater 10, and the electric shock preventing device 20 is used for reducing the voltage flowing through the human body during electric leakage to ensure the safety of the user. The electric shock protection device 20 comprises a first insulation pipe 21, a second insulation pipe 22 and a box body 23, wherein one end of the first insulation pipe 21 is connected with the water inlet 11 of the electric water heater 10, and the other end of the first insulation pipe is connected with the cold water inlet of the water mixing valve 13. One end of the second insulating tube 22 is connected to the water outlet 12 of the electric water heater 10, and the other end is connected to the hot water inlet of the water mixing valve 13. In this embodiment, the first insulating tube 21 and the second insulating tube 22 are respectively provided with an adaptor 30 at two ends thereof, and the adaptor 30 may be a known adaptor 30, such as a threaded sleeve, a clamping member, and the like, and is used for connecting the first insulating tube 21 and the second insulating tube 22 with the water inlet 11 and the water outlet 12 of the electric water heater 10 and the cold water inlet and the hot water inlet of the mixing valve 13, respectively. A safety valve 40 is arranged between the first insulating pipe 21 and the water inlet 11 of the electric water heater 10, and the safety valve 40 is arranged between the water inlet 11 of the electric water heater 10 and the adaptor 30 to ensure the safety of the water heater. The box 23 is a hollow rectangular frame for accommodating the first insulating tube 21 and the second insulating tube 22, so as to prevent the first insulating tube 21 and the second insulating tube 22 from being exposed, and to prevent the temperature of the water flowing through the first insulating tube 21 and the second insulating tube 22 from being affected by the external temperature. The box 23 is fixed on the wall below the electric water heater 10, and the top and the bottom of the box are respectively provided with a through hole for passing the first insulating tube 21 and the second insulating tube 22. In addition, a bracket may be provided in the case 23 to fix the first insulating tube 21 and the second insulating tube 22. Specifically, the first insulating tube 21 and the second insulating tube 22 may be fixed in the box 23 in a ring, a serpentine or a spiral manner, and of course, the first insulating tube 21 and the second insulating tube 22 may be fixed in the box 23 in other manners. The corresponding stent may be in the shape of a ring, a serpentine, a helix, or other shapes. The first insulating tube 21 and the second insulating tube 22 in this embodiment are fixed in the case 23 in a spiral manner. Meanwhile, a baffle plate can be further arranged in the box body 23, so that the box body 23 is divided into two independent spaces which are respectively used for accommodating the first insulating tube 21 and the second insulating tube 22, and the mutual interference between the first insulating tube 21 and the second insulating tube 22 is avoided.
The electric shock protection device 20 of the present embodiment utilizes the principle of resistance voltage division to reduce the voltage flowing through the human body in case of electric leakage, so as to ensure the safety of the human body. According to the requirements of GB13955-92 installation and operation of a leakage protector, the rated current of the leakage protector installed in a bathroom is 10mA, the resistivity of tap water is 1300 omega cm, and according to ohm's law and a resistivity formula: l ═ R pi R2/ρ＝Uπr2/Iρ＝220*3.14*r2/(10*10-3*1300)＝53.14r2Wherein, L is the length of the first insulating tube 21 and the second insulating tube 22, and r is the radius of the first insulating tube 21 and the second insulating tube 22, that is, when the square ratio of the length to the radius of the first insulating tube 21 and the second insulating tube 22 is not less than 53.14r2In the process, even if the leakage voltage is 220V and the grounding is poor or the leakage fault occurs, the current flowing through the human body is less than or equal to 10mA, and the voltage is safe and cannot cause the damage of the human body, so that the leakage protection effect is achieved.
Example 2
Referring to fig. 2, the electric shock protection device of the electric water heater of the present invention includes an electric water heater 10, an electric shock protection device 20, an adaptor 30 and a safety valve 40.
As shown in fig. 2, the electric water heater 10 is a water storage type electric water heater, and is provided with a water inlet 11 and a water outlet 12. One end of the water inlet 11 is connected with the bottom of the electric water heater 10, the other end is connected with the cold water inlet of the water mixing valve 13 through a water pipe, one end of the water outlet 12 is connected with the bottom of the electric water heater 10, and the other end is connected with the hot water inlet of the water mixing valve 13 through a water pipe.
As shown in fig. 2, an electric shock preventing device 20 is disposed between the water inlet 11 and the water outlet 12 of the electric water heater 10 and the mixing valve 13, and the electric shock preventing device 20 is used for reducing the voltage flowing through the human body in the case of electric leakage to ensure the safety of the human body. The electric shock protection device 20 comprises a third insulating pipe 24, a fourth insulating pipe 25, a first box 26 and a second box 27, wherein one end of the third insulating pipe 24 is connected with the water inlet 11 of the electric water heater 10, the other end of the third insulating pipe is connected with the cold water inlet of the water mixing valve 13, one end of the fourth insulating pipe 25 is connected with the water outlet 12 of the electric water heater 10, and the other end of the fourth insulating pipe is connected with the hot water inlet of the water mixing valve 13. In this embodiment, the connection end of the third insulating tube 24 and the water inlet of the electric water heater is an L-shaped tube, the top of the vertical portion of the L-shaped tube is fixed to the water inlet 11 of the electric water heater 10, in this embodiment, the inner diameter of the third insulating tube 24 is slightly larger than the outer diameter of the water tube, an internal thread is arranged on the top of the vertical portion of the L-shaped tube, the internal thread is in threaded connection with the water tube connected to the water inlet 11 of the electric water heater 10, the connection end of the third insulating tube 24 and the water mixing valve 13 is an L-shaped tube, and the outer diameter of the bottom of the vertical portion of the L-shaped tube is slightly smaller than the inner diameter of the water tube connected to the. The intermediate portion of the third insulating tube 24 is fixed in the first case 26. The connection end of the fourth insulating pipe 25 and the water outlet of the electric water heater is an L-shaped pipe with an outward opening, the top of the vertical part of the L-shaped pipe is fixed with the water outlet 12 of the electric water heater 10, in this embodiment, the inner diameter of the fourth insulating pipe 25 is slightly larger than the outer diameter of the water pipe, an internal thread is arranged at the top of the vertical part of the L-shaped pipe and is in threaded connection with the water pipe connected with the water outlet 12 of the electric water heater 10, the connection end of the fourth insulating pipe 25 and the water mixing valve 13 is an L-shaped pipe, and the outer diameter of the bottom of the vertical part of the L-shaped pipe is slightly smaller than the inner diameter of the water pipe connected with the water mixing valve 13. The intermediate portion of the fourth insulating tube 25 is fixed in the second case 27. A safety valve 40 is arranged between the third insulating pipe 24 and the water inlet 11 of the electric water heater 10, and the safety valve 40 is arranged between the water inlet 11 of the electric water heater 10 and the adaptor 30 to ensure the safety of the water heater. Of course, the safety valve 40 may also be provided between the third insulating pipe 24 and the cold water inlet of the mixing valve 13. The first box 26 is a hollow rectangular frame for accommodating the middle of the third insulating tube 24, so as to prevent the third insulating tube 24 from being exposed, and prevent the external temperature from affecting the temperature of the water flowing through the third insulating tube 24. The first box 26 is fixed on the wall under the electric water heater 10, and the top and the bottom of the first box are respectively provided with a through hole for passing the third insulating tube 24. In addition, a bracket may be provided in the first container 26 to fix the third insulating tube 24. Specifically, the third insulating tube 24 may be fixed in the first box 26 in a circular, serpentine or spiral manner, but the third insulating tube 24 may be fixed in the first box 26 in other manners. The corresponding stent may be in the shape of a ring, a serpentine, a helix, or other shapes. The third insulating tube 24 in this embodiment is fixed in a serpentine manner within the first box 26. The second box 27 is a hollow rectangular frame for accommodating the middle portion of the fourth insulating tube 25, so as to prevent the fourth insulating tube 25 from being exposed, and to avoid the influence of the external temperature on the temperature of the water flowing through the fourth insulating tube 25. The second box 27 is fixed on the wall below the electric water heater 10, and the top and the bottom of the second box are respectively provided with a through hole for passing the fourth insulating tube 25. In addition, a bracket may be provided in the second container 27 to fix the fourth insulating tube 25. Specifically, the fourth insulating tube 25 may be fixed in the second box 27 in a circular, serpentine or spiral manner, and of course, the fourth insulating tube 25 may be fixed in the second box 27 in other manners. The corresponding stent may be in the shape of a ring, a serpentine, a helix, or other shapes. The fourth insulating tube 25 in this embodiment is fixed in a serpentine manner in the second container 27. In addition, the first box 26 and the second box 27 may be integrated with a baffle in between for easy installation and processing, so that the third insulating tube 24 and the fourth insulating tube 25 do not interfere with each other.
The electric shock protection device 20 of the present embodiment utilizes the principle of resistance voltage division to reduce the voltage flowing through the human body in case of electric leakage, so as to ensure the safety of the human body. According to the requirements of GB13955-92 installation and operation of a leakage protector, the rated current of the leakage protector installed in a bathroom is 10mA, the resistivity of tap water is 1300 omega cm, and according to ohm's law and a resistivity formula: l ═ R pi R2/ρ＝Uπr2/Iρ＝220*3.14*r2/(10*10-3*1300)＝53.14r2Wherein, L is the length of the first insulating tube 21 and the second insulating tube 22, and r is the radius of the first insulating tube 21 and the second insulating tube 22, that is, when the square ratio of the length to the radius of the first insulating tube 21 and the second insulating tube 22 is not less than 53.14r2In the meantime, even if the leakage voltage is 220V and the grounding is poor or the leakage fault occurs, the electricity flowing through the human bodyThe current is less than or equal to 10mA, is safe voltage and cannot cause the injury of human bodies, thereby achieving the effect of leakage protection.
Therefore, the utility model discloses an electric water heater's protection against electric shock device is through setting up protection against electric shock device 20 between water inlet 11, delivery port 12 and the muddy water valve 13 at electric water heater 10, and this protection against electric shock device 20 includes two insulating tubes and box body, and partial pressure through the insulating tube makes electric water heater 10 can reduce the human voltage of flowing through under the electric leakage condition, ensures human safety. And the insulating tube is arranged in the box body, so that the structure is simple, the cleanness and the safety are high, and the water flowing through the water pipe can be prevented from being influenced by the external temperature.
Although the present invention has been described in connection with the above embodiments, the scope of the present invention is not limited thereto, and modifications, replacements, and the like to the above members are all within the scope of the claims of the present invention without departing from the concept of the present invention.
Claims (10)
1. The electric shock prevention device of the electric water heater comprises the electric water heater (10) and is characterized in that an electric shock prevention device (20) is arranged between a water inlet (11) and a water outlet (12) of the electric water heater (10) and a water mixing valve (13), the electric shock prevention device (20) comprises a first insulating pipe (21), a second insulating pipe (22) and a box body (23) for containing the first insulating pipe (21) and the second insulating pipe (22), one end of the first insulating pipe (21) is connected with the water inlet (11) of the electric water heater (10), the other end of the first insulating pipe is connected with a cold water inlet of the water mixing valve (13), one end of the second insulating pipe (22) is connected with the water outlet (12) of the electric water heater (10), the other end of the second insulating pipe is connected with a hot water inlet of the water mixing valve (13), and the box body (23) is fixed.
2. The electric shock preventing device of the electric water heater according to claim 1, wherein the square ratio of the length to the radius of the first insulating pipe (21) and the second insulating pipe (22) is greater than or equal to 53.14r2。
3. The electric shock preventing device of the electric water heater according to claim 1, wherein two ends of the first insulating pipe (21) and the second insulating pipe (22) are respectively connected with the water inlet (11) and the water outlet (12) of the electric water heater (10) and the cold water inlet and the hot water inlet of the water mixing valve (13) through an adapter (30), and a safety valve (40) is arranged between the first insulating pipe (21) and the water inlet (11) of the electric water heater (10).
4. The electric shock preventing device for electric water heater according to claim 1, wherein the first insulating tube (21) and the second insulating tube (22) are fixed in the box body (23) in a circular, serpentine or spiral manner.
5. An electric shock preventing device of an electric water heater comprises an electric water heater (10) and is characterized in that, an electric shock prevention device (20) is arranged between the water inlet (11) and the water outlet (12) of the electric water heater (10) and the water mixing valve (13), the electric shock prevention device (20) comprises a third insulating tube (24), a fourth insulating tube (25), a first box body (26) and a second box body (27) which are used for respectively containing the third insulating tube (24) and the fourth insulating tube (25), one end of the third insulating pipe (24) is connected with the water inlet (11) of the electric water heater (10), the other end is connected with the cold water inlet of the water mixing valve (13), one end of the fourth insulating pipe (25) is connected with the water outlet (12) of the electric water heater (10), the other end is connected with the hot water inlet of the water mixing valve (13), the first box body (26) and the second box body (27) are respectively fixed on a wall below the electric water heater (10).
6. The electric shock protection device of the electric water heater according to claim 5, wherein the third insulating tube (24) and the fourth insulating tube (25) are respectively connected with the water inlet (11) of the electric water heater (10), the cold water inlet of the water mixing valve (13), the water outlet (12) of the electric water heater (10) and the hot water inlet of the water mixing valve (13) by screw threads.
7. The electric shock protector of the electric water heater as set forth in claim 5, wherein the square ratio of the length to the radius of the third insulating tube (24) and the fourth insulating tube (25) is not less than 53.14r2。
8. The electric shock protection device of the electric water heater according to claim 5, wherein the connection end of the third insulating pipe (24) and the water inlet of the electric water heater is an L-shaped pipe, the connection end of the third insulating pipe (24) and the water mixing valve (13) is an L-shaped pipe, the middle part of the third insulating pipe (24) is accommodated in the first box body (26), the connection end of the fourth insulating pipe (25) and the water outlet of the electric water heater is an L-shaped pipe, the connection end of the fourth insulating pipe (25) and the water mixing valve (13) is an L-shaped pipe, the middle part of the fourth insulating pipe (25) is accommodated in the second box body (27), and a safety valve (40) is arranged between the third insulating pipe (24) and the water inlet (11) of the electric water heater or between the third insulating pipe (24) and the cold water inlet of the water mixing valve (13).
9. The electric shock protection device of the electric water heater as claimed in claim 5, wherein the middle parts of the third insulating tube (24) and the fourth insulating tube (25) are fixed in the first box body (26) and the second box body (27) in a ring-shaped, serpentine or spiral manner respectively.
10. The electric shock protection device for electric water heater according to claim 5, wherein the first case (26) and the second case (27) are integrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822088340.0U CN210107772U (en) | 2018-12-12 | 2018-12-12 | Electric shock preventing device of electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822088340.0U CN210107772U (en) | 2018-12-12 | 2018-12-12 | Electric shock preventing device of electric water heater |
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| Publication Number | Publication Date |
|---|---|
| CN210107772U true CN210107772U (en) | 2020-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822088340.0U Active CN210107772U (en) | 2018-12-12 | 2018-12-12 | Electric shock preventing device of electric water heater |
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| Country | Link |
|---|---|
| CN (1) | CN210107772U (en) |
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2018
- 2018-12-12 CN CN201822088340.0U patent/CN210107772U/en active Active
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