CN208075302U - Electric water heater - Google Patents
Electric water heater Download PDFInfo
- Publication number
- CN208075302U CN208075302U CN201820294782.8U CN201820294782U CN208075302U CN 208075302 U CN208075302 U CN 208075302U CN 201820294782 U CN201820294782 U CN 201820294782U CN 208075302 U CN208075302 U CN 208075302U
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- Prior art keywords
- electric heater
- water
- electric
- protective resistance
- voltage
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 98
- 230000001681 protective effect Effects 0.000 claims abstract description 60
- 230000005611 electricity Effects 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims description 25
- 229910052751 metal Inorganic materials 0.000 claims description 25
- 238000009413 insulation Methods 0.000 claims description 22
- 238000002955 isolation Methods 0.000 claims description 9
- 238000004321 preservation Methods 0.000 claims 1
- 239000012212 insulator Substances 0.000 abstract 2
- 238000005485 electric heating Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Control Of Resistance Heating (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Resistance Heating (AREA)
Abstract
The utility model belongs to the technical field of the water heater, a electric water heater is disclosed, is equipped with water pipe spiral shell head in water inlet and/or delivery port department, water pipe spiral shell head includes insulator, the last protective resistor that is equipped with of insulator, protective resistor one end ground connection, the other end is connected electric water heater's inner bag and/or electric heater and/or water in the electric water heater. When the electric water heater leaks electricity, the leakage voltage can be reduced to be lower than the safe voltage through the protective resistor, so that the voltage led out to the grounding electrode is reduced to be lower than the safe voltage, and the influence on surrounding electric appliances connected to the grounding electrode at the same time is weakened. When the electric leakage of other surrounding electric appliances is conducted to the protective resistor of the electric water heater, the protective resistor can reduce the voltage conducted to the electric water heater to be below the safe voltage, so that the electric water heater is effectively protected from the electric leakage of other electric appliances, and the personal safety of a user is further guaranteed.
Description
Technical field
The utility model is related to technical field of water heaters more particularly to a kind of electric heaters.
Background technology
Currently, as the improvement of people's living standards, water heater has come into huge numbers of families, water heater is as a kind of special
Electric equipment products, security feature are just particularly important.Water heater will directly jeopardize the life security of people once leaking electricity.Electric heating
Hydrophone is household electrical appliance, in order to ensure that user's personal safety, electric heater are grounded, to carry out earth leakage protective.Electric heating
Hydrophone includes liner, wraps up the insulating layer of the liner setting, and the shell of the package insulating layer setting；Further include for real
The electric heater now heated.
Since the water pipe generally use plastic pipe and insulating layer of existing water heater are insulating layer, even if in electric heater
Water charges, and can ensure that water pipe and shell are uncharged, only need to ensure that the water outlet of water heater is not charged can ensure to use water
Safety.Electric heater realizes the earth leakage protective to water outlet by anti-electric wall construction in the prior art, particular by certain length
Isolation water column form the larger water resistance of resistance value electrical leakage voltage be down to safe voltage or less using electric resistance partial pressure principle.
It further includes liner and electric heater to need to carry out earth leakage protective structure on electric heater, in the prior art liner and
Electric heater is to realize earth leakage protective by ground connection.
The ground wire of each household electrical appliance in Most users residence interconnects at present, when there are electrical leakage problems in electric heater,
Once ground terminal is not grounded really and forms virtual connection, other household electrical appliance can be made to charge by ground wire, influence user's
It uses, or even user's personal safety can be endangered.
Utility model content
The purpose of this utility model is to provide a kind of electric heaters to pass through protective resistance, energy when electric heater leaks electricity
So that electric heater is exported to the voltage of earthing pole and is down to safe voltage hereinafter, weaken pair while accessing surrounding's electric appliance of earthing pole
Influence, ensured the personal safety of also user.
For this purpose, the utility model uses following technical scheme：
A kind of electric heater is equipped with water pipe screw head in water inlet and/or water outlet, and the water pipe screw head includes insulating this
Body, the insulating body are equipped with protective resistance, protective resistance one end ground connection, and the other end connects the interior of the electric heater
Water body in courage and/or electric heater and/or the electric heater.
Preferably, one end of the protective resistance is connected with metal wiring terminal, the metal wiring terminal ground connection sets
It sets.
Preferably, the insulating body is connected with the insulation water pipe communicated therewith, the other end of the protective resistance with
Water conduction in the insulating body, the insulation water pipe stretch into the liner setting and the insulation water pipe top to bottom end
Between isolation water column the voltage of conduction can be down to safe voltage or less.
Preferably, one end of the protective resistance and water conduction is not connected with the insulation water pipe with the insulating body
One end between isolation water column the voltage of conduction can be down to safe voltage or less.
Preferably, the insulating body is equipped with metal insert close to the water inlet or described water outlet one end, it is described
Metal insert is connected to the liner of the electric heater, and one end of the protective resistance is connected to the metal insert.
Preferably, the insulating body is made of insulation tube body, the protective resistance is shaped in the insulation tube
In vivo.
Preferably, the electric heater includes the insulating layer for wrapping up liner, the protective resistance and the metal connect
Line terminals are placed in the insulating layer.
Preferably, the resistance value of the protective resistance is 100K Ω -150K Ω.
The beneficial effects of the utility model：It, can be by electrical leakage voltage by protective resistance when electric heater itself leaks electricity
Be down to safe voltage or less so that export to the voltage of earthing pole be down to safe voltage hereinafter, weaken pair and meanwhile access earthing pole
Surrounding's electric appliance influence.And when electrical leakage is conducted to the protective resistance of electric heater around other, protective resistance energy
The enough voltage by conduction to electric heater is down to safe voltage hereinafter, being effectively protected electric heater not by other electrical leakages
It influences, and then has ensured the personal safety of user.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model electric heater；
Fig. 2 is the schematic view of the mounting position of the protective resistance described in the utility model embodiment one；
Fig. 3 is the schematic view of the mounting position of the protective resistance described in the utility model embodiment two.
In figure：
1, shell；2, liner；3, electric heater；4, water pipe screw head；5, protective resistance；6, metal wiring terminal；7, it insulate
Water pipe；8, outer tube；9, metal insert；41, insulating body.
Specific implementation mode
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
Embodiment one
The present embodiment provides a kind of electric heaters, as shown in Figure 1, the electric heater include water inlet (not marked in figure),
Water outlet (not marked in figure), shell 1, liner 2, electric heater 3 and water pipe screw head 4 are equipped with insulating layer in above-mentioned shell 1
(being to mark in figure), above-mentioned liner 2 and electric heater 3 are arranged in insulating layer, by above-mentioned insulating layer, can ensure that electricity adds
The shell 1 of hot device 3 will not charge.
Specifically, the above-mentioned water pipe screw head 4 of the present embodiment is arranged in water inlet and/or water outlet, Fig. 2 is can refer to, on
The insulating body 41 that water pipe screw head 4 includes intermediate trepanning is stated, protective resistance 5, the protective resistance 5 are equipped on insulating body 41
One end is grounded, the liner 2 and/or the water body in electric heater 3 and/or electric heater that the other end connects electric heater.
Further, one end of the above-mentioned protective resistance 5 of the present embodiment is connected with metal wiring terminal 6, and passes through the gold
Belong to connecting terminal 6 to be grounded.When electric heater itself leaks electricity, electrical leakage voltage can be down to by safety by above-mentioned protective resistance 5
Below voltage so that metal wiring terminal 6 export to the voltage of earthing pole be down to safe voltage hereinafter, weaken pair and meanwhile connect
The influence of surrounding's electric appliance in earth polar.
And the present embodiment is by above-mentioned protective resistance 5, electrical leakage and is conducted electrical leakage voltage to electricity around other
When at the metal wiring terminal 6 of water heater, due to the effect of protective resistance 5, enable to conduct to the electric leakage electricity of electric heater
Pressure drop has ensured user's to safe voltage hereinafter, be effectively protected electric heater is not influenced by other electrical leakages
Personal safety.
In the present embodiment, above-mentioned protective resistance 5 and metal wiring terminal 6 are placed in insulating layer, and then can be prevented
When electric heater leaks electricity, electrical leakage voltage causes shell 1 to charge, and then avoids user by security threat.
Specifically, please referring to Fig. 2, it is connected with the insulation water pipe 7 for stretching into liner 2 in the above-mentioned water pipe screw head 4 of the present embodiment,
The insulation water pipe 7 is connected to setting with insulating body 41, and 7 top of insulation water pipe to the isolation water column between bottom end can be formed compared with
The voltage that water body in electric heater conducts can be down to safe voltage hereinafter, working as by big resistance using electric resistance partial pressure principle
When water body in liner 2 charges, safe voltage can be depressurized to hereinafter, also ensuring that going out for electric heater by the way that water column is isolated
Water power pressure is in safe voltage hereinafter, ensureing the water safety of user.Further, the present embodiment is in above-mentioned insulation water pipe 7
Top is arranged with outer tube 8, and the channel for circulation of supplying water, and the channel and insulation are formed between the outer tube 8 and insulation water pipe 7
Water pipe 7 is connected, and further increases the length of above-mentioned isolation water note.
In the present embodiment, further, above-mentioned protective resistance 5 and one end of water conduction and insulating body 41 are not connected exhausted
The voltage that water body conducts can be down to safe voltage or less by the isolation water column between one end of edge water pipe 7.With this configuration
Setting, can be further ensured that the water outlet voltage of electric heater is in safe voltage or less.
In the present embodiment, above-mentioned insulating body 41 is made of insulation tube body, and above-mentioned protective resistance 5 is shaped in the insulation
In tube body, and one end of protective resistance 5 and the water conduction in insulating body 41, the other end of protective resistance 5 then connect gold
Belong to connecting terminal 6, one end that above-mentioned metal wiring terminal 6 is not connected with protective resistance 5 is placed on the outside of water stream channel.Pass through the knot
Structure, when electric heater 3 or the electric leakage of liner 2, the electrical leakage voltage of electric heater 3 and liner 2 can pass through the water in liner 2
Body is conducted to insulation tube body, by the isolation water column in insulation tube body is depressurized to safe voltage hereinafter, protective resistance 5 at this time
Voltage is then pulled low, and is realized to the good protection of earthing pole, is also just reduced because of electric heater 3 and the electric leakage of liner 2, pair is connect simultaneously
It is influenced caused by entering surrounding's electric appliance of earthing pole.
It should be pointed out that in the present embodiment, above-mentioned liner 2 and electric heater 3 can also directly be connected by connecting terminal
It is connected to above-mentioned protective resistance 5, is specifically connected to one end of protective resistance 5 and water conduction, at this time when electric heater 3 and liner
When 2 electric leakage, electrical leakage voltage directly can be down to by safe voltage by protective resistance 5 hereinafter, can equally be carried out to earthing pole
Good protection is reduced because of electric heater 3 and the electric leakage of liner 2, is influenced caused by accessing surrounding's electric appliance of earthing pole simultaneously.
It is understood that the above-mentioned electric heater of the present embodiment is in addition to can leak electric heater 3, liner 2 and water body
Electrical leakage voltage when electric is down to safe voltage hereinafter, to protect outside surrounding electric appliance, conduct when also can be by electrical leakage around to
The electrical leakage voltage of electric heater is down to safe voltage hereinafter, specifically, when electrical leakage around, and electrical leakage voltage can be protected
Resistance 5 is depressured, and then ensure that the safe to use of electric heater.
In the present embodiment, the resistance value of above-mentioned protective resistance 5 is 100K Ω -150K Ω, to ensure that electrical leakage voltage passes through guarantor
When protecting resistance 5, electrical leakage voltage can be down to safe voltage or less by protective resistance 5.
Embodiment two
The difference between this embodiment and the first embodiment lies in the installation position of the protective resistance 5 of the present embodiment is different, specifically
, Fig. 3 is can refer to, the present embodiment is equipped with metal insert 9, the metal in insulating body 41 close to one end of water inlet or water outlet
Inserts 9 is connected to the liner 2 of electric heater, and one end of above-mentioned protective resistance 5 is connected to metal insert 9, when liner 2 leaks electricity,
Electrical leakage voltage can be conducted by metal insert 9 to protective resistance 5, and safe voltage or less is depressurized to by protective resistance 5.And work as
It when electric heater 3 leaks electricity, can be conducted to liner 2 by the water body in liner 2, and eventually by the conduction of metal insert 9 to guarantor
It protects at resistance 5, is depressured by protective resistance 5.
It is understood that the above-mentioned electric heater 3 of the present embodiment can also be directly connected to by connecting terminal it is above-mentioned
Protective resistance 5 is specifically connected to one end that protective resistance 5 is connect with metal insert 9, can at this time when electric heater 3 leaks electricity
Electrical leakage voltage is directly down to safe voltage or less by protective resistance 5.
The other structures of the present embodiment electric heater and the electric heater all same of embodiment one, details are not described herein.
Obviously, above-described embodiment of the utility model is used for the purpose of clearly illustrating the utility model example, and
It is not the restriction to the embodiment of the utility model.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
It is exhaustive.All any modification, equivalent and improvement made within the spirit and principle of the present invention etc., should be included in
Within the protection domain of the utility model claims.
Claims (8)
1. a kind of electric heater, which is characterized in that be equipped with water pipe screw head, the water pipe screw head in water inlet and/or water outlet
Including insulating body, the insulating body is equipped with protective resistance, protective resistance one end ground connection, and the other end connects the electricity
The liner and/or electric heater and/or the water body in the electric heater of water heater.
2. electric heater according to claim 1, which is characterized in that one end of the protective resistance is connected with metal connection
Terminal, the metal wiring terminal ground connection setting.
3. electric heater according to claim 1, which is characterized in that the insulating body is connected with the insulation communicated therewith
Water pipe, the other end of the protective resistance stretch into the liner with the water conduction in the insulating body, the insulation water pipe
It is arranged and the voltage of conduction can be down to safe voltage or less by the insulation water pipe top to the isolation water column between bottom end.
4. electric heater according to claim 3, which is characterized in that one end and institute of the protective resistance and water conduction
Safe voltage can be down to by the voltage of conduction by stating the isolation water column that insulating body is not connected between one end of the insulation water pipe
Below.
5. electric heater according to claim 1, which is characterized in that the insulating body is close to the water inlet or described
Water outlet one end is equipped with metal insert, and the metal insert is connected to the liner of the electric heater, and the one of the protective resistance
End is connected to the metal insert.
6. according to any electric heaters of claim 2-5, which is characterized in that the insulating body is by insulation tube body structure
At the protective resistance is shaped in the insulation tube body.
7. electric heater according to claim 2, which is characterized in that the electric heater includes the heat preservation for wrapping up liner
Layer, the protective resistance and the metal wiring terminal are placed in the insulating layer.
8. electric heater according to claim 1, which is characterized in that the resistance value of the protective resistance is 100K Ω-
150KΩ。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820294782.8U CN208075302U (en) | 2018-03-02 | 2018-03-02 | Electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820294782.8U CN208075302U (en) | 2018-03-02 | 2018-03-02 | Electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208075302U true CN208075302U (en) | 2018-11-09 |
Family
ID=64039582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820294782.8U Active CN208075302U (en) | 2018-03-02 | 2018-03-02 | Electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208075302U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111765649A (en) * | 2020-07-14 | 2020-10-13 | 广东格美淇电器有限公司 | Electric water heater with voltage induction type leakage protection and alarm method thereof |
-
2018
- 2018-03-02 CN CN201820294782.8U patent/CN208075302U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111765649A (en) * | 2020-07-14 | 2020-10-13 | 广东格美淇电器有限公司 | Electric water heater with voltage induction type leakage protection and alarm method thereof |
| CN111765649B (en) * | 2020-07-14 | 2021-11-05 | 广东格美淇电器有限公司 | Electric water heater with voltage induction type leakage protection and alarm method thereof |
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