CN205641568U - Water heater - Google Patents
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- CN205641568U CN205641568U CN201620374189.5U CN201620374189U CN205641568U CN 205641568 U CN205641568 U CN 205641568U CN 201620374189 U CN201620374189 U CN 201620374189U CN 205641568 U CN205641568 U CN 205641568U
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Abstract
The utility model discloses a water heater, water heater includes: a housing. Waterway system, waterway system establishes in the casing, be used for for the wire of water heater power supply, be used for detecting the current transformer of wire electric current, be used for control the safety protection valve of the break -make of rivers in the waterway system, a controller, the wire with the controller links to each other, the controller respectively with current transformer with the communication of safety protection valve is worked as current transformer detects the zero line of wire and the difference between current of live wire or the current value of the ground wire of wire is more than or equal to during predetermined value I, controller control the safety protection valve cuts off waterway system's rivers. The utility model discloses a water heater can sensitive and accurately judge the electric leakage to rivers in waterway system the time is cut off reliably to the electric leakage, the emergence of the casualty accident that prevents to electrocute, and current transformer's detection precision is high, job stabilization.
Description
Technical field
This utility model belongs to technical field of water heaters, in particular to a kind of water heater.
Background technology
Water heater in correlation technique, owing to water heater product itself, subscriber's line circuit install lack of standardization leading
Live wire and the zero line caused connects in the anti-or family of neighbor user electric leakage etc. and there will be leaky, poor stability.
To this end, occur in that some are provided with the water heater of anti-electricity wall, anti-electric brake, earth leakage protective etc., but these
Water heater simply reduces electric current when electric leakage or cuts off the electricity supply, and can not thoroughly solve electric shock problem, peace
Full property is the highest.In correlation technique, it is anti-that some water heaters can make safety according to the charged situation of current
Protect action, but the current detecting of current is inaccurate, and when current are charged, the safety of user is subject to
To serious threat, there is room for improvement.
Utility model content
One of technical problem that this utility model is intended to solve in correlation technique the most to a certain extent.For
This, the purpose of this utility model is to propose a kind of to use safe water heater.
According to water heater of the present utility model, including: housing；Water circuit system, described water circuit system is located at institute
State in housing；For the wire powered to described water heater；For detecting the Current Mutual Inductance of described current in wire
Device；The safety protective valve of the break-make of current in controlling described water circuit system；Controller, described wire with
Described controller be connected, described controller respectively with described current transformer and described safety protective valve communication,
When described current transformer detects the zero line of described wire and the difference between current of live wire or the ground wire of described wire
Current value more than or equal to described predetermined value I time, described controller control described safety protective valve cut off institute
State the current of water circuit system.
According to the water heater of this utility model embodiment, the electric current directly being detected wire by current transformer is different
Often, electric leakage can be judged sensitive and exactly, with the current being assuredly shut off in water circuit system when electric leakage,
Preventing the generation of electric shock casualty accident, thus ensure that user uses safety, do not affect user just commonly uses water,
And current transformer does not contacts with current, being possible to prevent current transformer corrosion or covered by incrustation scale, electric current is mutual
The accuracy of detection of sensor is high, working stability.
It addition, it is special to have following additional technology according to the water heater of this utility model above-described embodiment
Levy:
In preferred embodiments more of the present utility model, described current transformer is configured to annular, and institute
State wire through described current transformer.
Further, described zero line is connected with described controller with described live wire, described ground wire and described housing
It is connected.
In preferred embodiments more of the present utility model, described predetermined value I meets: I >=5mA.
Further, described predetermined value I meets: I=7mA or I=12mA.
In preferred embodiments more of the present utility model, described controller for set on the housing and with
The display & control system of described water circuit system communication, the current detection value of described current transformer is by described display & control system
Display.
In preferred embodiments more of the present utility model, described safety protective valve is located at described water circuit system
On, and arrange adjacent to water inlet end or the water side of described water circuit system.
In preferred embodiments more of the present utility model, described water heater is gas heater and described water
Road system includes: heat-exchanger rig；Water feed apparatus, described water feed apparatus connects with described heat-exchanger rig and from institute
State housing to expose；Discharging device, described discharging device connects with described heat-exchanger rig and exposes from described housing；
For the burner that the water in described heat-exchanger rig is heated；Controller for gas, described combustion gas control
Device processed connects with described burner and exposes from described housing, and described controller controls dress with described combustion gas
Putting communication, wherein, described safety protective valve is located between described water feed apparatus and described heat-exchanger rig.
Further, described water circuit system also includes: according to water temperature and hydraulic pressure regulating water flow and feed back current
The Flow-rate adjustment feedback device of amount, described Flow-rate adjustment feedback device is located at water feed apparatus and described heat-exchanger rig
Between and with described controller communication, described controller is according to the feedback information of described Flow-rate adjustment feedback device
Control the gas supply ratio of described combustion control system.
Further, described gas heater also includes: for discharging the flue gas that described burner produces
Smoke evacuation system, described smoke evacuation system is located in described housing and connects with the space outerpace of described housing,
Described controller and described smoke evacuation system communication.
Accompanying drawing explanation
Embodiment is retouched by above-mentioned and/or additional aspect of the present utility model and advantage from combining accompanying drawings below
Will be apparent from easy to understand in stating, wherein:
Fig. 1 is the structural representation of the water heater according to this utility model embodiment.
Reference:
Water heater 1,
Housing 10,
Water circuit system 20, water inlet end 21, water side 22, water feed apparatus 23, heat-exchanger rig 24, water outlet
Device 25, burner 26, controller for gas 27, Flow-rate adjustment feedback device 28,
Wire 30, zero line 31, live wire 32, ground wire 33,
Current transformer 40, safety protective valve 50, controller 60, smoke evacuation system 70,
Detailed description of the invention
Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings, its
In the most same or similar label represent same or similar element or there is same or like function
Element.The embodiment described below with reference to accompanying drawing is exemplary, it is intended to be used for explaining that this practicality is new
Type, and it is not intended that to restriction of the present utility model.
Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
The water heater 1 according to this utility model embodiment, described water heater 1 is described in detail referring to Fig. 1
There is advantage safe to use.
As it is shown in figure 1, according to the water heater 1 of this utility model embodiment, including housing 10, water circuit system
20, wire 30, safety protective valve 50, controller 60 and current transformer 40.
Wherein, water circuit system 20 is located in housing 10, and wire 30 is used for powering to water heater 1, electric current
Transformer 40 is for detecting the electric current of wire 30, to react abnormal current, safety protective valve 50
The break-make of current in controlling water circuit system 20, wire 30 is connected with controller 60, controller 60
Respectively with current transformer 40 and safety protective valve 50 communication, when current transformer 40 detects wire 30
The difference between current of zero line 31 and live wire 32 more than or equal to predetermined value I or the electric current of the ground wire 33 of wire 30
When value is more than or equal to predetermined value I, controller 60 controls safety protective valve 50 and cuts off water circuit system 20
Current.
In other words, in normal operation, ground wire 33 is the most not charged for water heater 1, zero line 31 and fire
The electric current of line 32 is basically identical, and the magnetic flux that now current transformer 40 detects is substantially zeroed, can sentence
Disconnected water heater 1 is in safe work state, and now safety protective valve 50 is in opening so that water route is
System 20 is in unimpeded state, is normally carried out supplying water.
When there is electric leakage accident, there is at least two situation: first leak conductance elsewhere is to hot water
Device 1, now ground wire 33 is charged, and the magnetic flux that current transformer 40 detects changes, when electric current is mutual
When sensor 40 detects the current value of ground wire 33 more than or equal to predetermined value I, controller 60 controls safety
Protection valve 50 cuts off the current of water circuit system 20, prevents user from getting an electric shock；It two is wire 30 electric leakage itself,
Now zero line 31 is unequal with the electric current of live wire 32, and the magnetic flux that current transformer 40 detects becomes
Change, when current transformer 40 detects the zero line 31 difference between current with live wire 32 more than or equal to predetermined value I,
Controller 60 controls safety protective valve 50 and cuts off the current of water circuit system 20.
Thus, when there is any of the above-described kind of drain conditions, water heater 1 all can be cut off the water supply rapidly, it is to avoid user
In the water utilizing processes such as bathing, after water on body shower, the resistance value instantaneous reduction of health, cause health
Electric current moment increase, personnel cannot break away from, and causes electric shock casualty accident.
Water heater 1 according to this utility model embodiment, directly detects wire 30 by current transformer 40
Current anomaly, can judge sensitive and exactly electric leakage, with electric leakage time be assuredly shut off water circuit system
Current in 20, prevent the generation of electric shock casualty accident, thus ensure that user uses safety, do not affect use
Family just commonly use water, and current transformer 40 does not contacts with current, is possible to prevent current transformer 40 corrosion
Or covered by incrustation scale, the accuracy of detection of current transformer 40 is high, working stability.
In preferred embodiments more of the present utility model, as it is shown in figure 1, current transformer 40 is permissible
It is configured to annular, and wire 30 can pass current transformer 40.It is understood that in normal condition
Under, the ground wire 33 of wire 30 is not charged, the zero line 31 of wire 30 equal with the current value of live wire 32 and
In opposite direction, the magnetic flux that therefore current transformer 40 detects is substantially zeroed.When ground wire 33 is charged,
The magnetic flux that current transformer 40 detects changes, when wire 30 leaks electricity, and zero line 31 and live wire
The current value of 32 is unequal, and current transformer 40 also can detect that magnetic flux changes, and now can sentence
Disconnected water heater 1 leaks electricity.Alternatively, current transformer 40 is it is so structured that annular.
Further, as it is shown in figure 1, zero line 31 can be connected with controller 60 with live wire 32 and be control
Device 60 processed is powered, and ground wire 33 can be connected with housing 10.
In preferred embodiments more of the present utility model, predetermined value I meets: I >=5mA.Thus, may be used
To prevent controller 60 from judging by accident, ensure the normal work of water heater 1.
In a concrete example of the present utility model, predetermined value I meets: I=7mA, i.e. mutual when electric current
Sensor 40 detects that the zero line 31 difference between current with live wire 32 is more than or equal to 7mA or the electric current of ground wire 33
When value is more than or equal to 7mA, controller 60 controls safety protective valve 50 and cuts off the current of water circuit system 20.
In another concrete example of the present utility model, predetermined value I meets: I=12mA, i.e. works as electricity
Current transformer 40 detects that the zero line 31 difference between current with live wire 32 is more than or equal to 12mA or ground wire 33
Current value more than or equal to 12mA time, controller 60 controls safety protective valve 50 and cuts off water circuit system
The current of 20.
In optional embodiments more of the present utility model, as it is shown in figure 1, safety protective valve 50 is located at
On water circuit system 20, and safety protective valve 50 can be arranged adjacent to the water inlet end 21 of water circuit system 20.
It is understood that current transformer 40 detects zero line 31 and the difference between current of live wire 32 or ground wire
When the current value of 33 is more than or equal to predetermined value I, controller 60 controls safety protective valve 50 and cuts out, thus
The current of water inlet end 21 disconnect, and water cannot enter water circuit system 20 from water inlet end 21.
In other optional embodiments of the present utility model, safety protective valve 50 is located at water circuit system 20
On, and safety protective valve 50 can the water side 22 of neighbouring water circuit system 20 arrange.
It is understood that current transformer 40 detects zero line 31 and the difference between current of live wire 32 or ground wire
When the current value of 33 is more than or equal to predetermined value I, controller 60 controls safety protective valve 50 and cuts out, thus
The current of water side 22 disconnect, and water cannot flow out from water side 22.
According to embodiments more of the present utility model, controller 60 can be to be located on housing 10 and and water route
The display & control system of system 20 communication, the current detection value of current transformer 40 is shown by display & control system, so
The drain conditions user of water heater 1 is visual, and user uses safer.Preferably, safety protective valve 50
On and off can also be shown by display & control system.
In the embodiment shown in 1, water heater 1 can be gas heater, and water circuit system 20 is permissible
Dress is controlled including heat-exchanger rig 24, water feed apparatus 23, discharging device 25, burner 26 and combustion gas
Putting 27, water feed apparatus 23 connects with heat-exchanger rig 24, and water feed apparatus 23 expose from housing 10 so that
External inlet pipeline, discharging device 25 connects with heat-exchanger rig 24, and discharging device 25 is from housing 10
Exposing to pick out water lines, so constituting the whole water route of water heater 1.Burner 26 is for right
Water in heat-exchanger rig 24 heats, and controller for gas 27 connects with burner 26, and combustion gas
Control device 27 and expose from housing 10 so that external fuel gas pipeline, controller 60 and controller for gas 27
Communication, to control the gas supply amount of controller for gas 27.Wherein, safety protective valve 50 can be located at
Between water feed apparatus 23 and heat-exchanger rig 24, specifically, safety protective valve 50 may be mounted at water inlet end
Between 21 and heat-exchanger rig 24.
Further, as it is shown in figure 1, water circuit system 20 can also include Flow-rate adjustment feedback device 28,
Flow-rate adjustment feedback device 28 can be according to water temperature and hydraulic pressure regulating water flow and feed back discharge, and flow is adjusted
Joint feedback device 28 is located between water feed apparatus 23 and heat-exchanger rig 24, and Flow-rate adjustment feedback device 28
With controller 60 communication, controller 60 controls combustion gas according to the feedback information of Flow-rate adjustment feedback device 28
Control the gas supply ratio of device 27.
Under normal circumstances, safety protective valve 50 is in normally open, and water enters water route system from water feed apparatus 23
System 20, flows successively through Flow-rate adjustment feedback device 28, safety protective valve 50 and enters heat-exchanger rig 24,
Water after burned device 26 heating, is flowed out by discharging device 25 in heat-exchanger rig 24.Wherein, control
The flow information that device 60 feeds back according to Flow-rate adjustment feedback device 28 controls Flow-rate adjustment feedback device respectively
28 and controller for gas 27, with the gas supply ratio of regulating water flow and controller for gas 27, from
And control the burning load of burner 26, make water outlet reach ideal temperature.When current transformer 40 detects
When current value to zero line 31 and the difference between current of live wire 32 or ground wire 33 is more than or equal to predetermined value I, electricity
This signal is fed back to controller 60 by current transformer 40, and controller 60 controls safety protective valve 50 and cuts out,
So that the current in the whole water circuit system 20 of water heater 1 disconnect, reach the purpose of safeguard protection.
Alternatively, gas heater can also include that smoke evacuation system 70, smoke evacuation system 70 are used for discharging burning
The flue gas that device 26 produces, in smoke evacuation system 70 is located at housing 10 and connects with the space outerpace of housing 10,
Controller 60 and smoke evacuation system 70 communication, thus control the emission behaviour of flue gas.
Certainly, the water heater 1 of this utility model embodiment is not limited to gas heater, it is also possible to for electric hot water
Device etc..
One concrete example of this utility model embodiment is described referring to Fig. 1.
As it is shown in figure 1, can be gas heater according to the water heater 1 of this utility model embodiment, including
Housing 10, water circuit system 20, wire 30, safety protective valve 50, controller 60 and current transformer
40。
Water circuit system 20 is located in housing 10, and water circuit system 20 can include heat-exchanger rig 24, water inlet dress
Put 23, discharging device 25, burner 26, controller for gas 27, Flow-rate adjustment feedback device 28
And smoke evacuation system 70.
Safety protective valve 50 is located on water circuit system 20, the break-make of current in controlling water circuit system 20,
Wire 30, for powering to water heater 1, is mainly used in powering to controller 60, wherein the zero of wire 30
Line 31 can be connected with controller 60 with live wire 32, and the ground wire 33 of wire 30 can be connected with housing 10,
Current transformer 40 is it is so structured that annular, and wire 30 can pass current transformer 40, and electric current is mutual
Sensor 40 is for detecting the current anomaly of wire 30.
Controller 60 respectively with current transformer 40 and safety protective valve 50 communication, when current transformer 40
Detect that the zero line 31 of wire 30 is more than or equal to predetermined value 12mA or wire with the difference between current of live wire 32
When the current value of the ground wire 33 of 30 is more than or equal to predetermined value 12mA, controller 60 controls safeguard protection
Valve 50 cuts off the current of water circuit system 20.
In sum, according to the water heater 1 of this utility model embodiment, current transformer 40 directly detects
The current anomaly of wire 30 and not contacting with current, can judge electric leakage, Current Mutual Inductance sensitive and exactly
Device 40 is difficult to corrosion or is covered by incrustation scale, and the accuracy of detection of current transformer 40 is high, and working stability is permissible
It is assuredly shut off the current in water circuit system 20 when electric leakage, prevents the generation of electric shock casualty accident, thus
Ensureing that user uses safety, do not affect user just commonly uses water.
In description of the present utility model, it is to be understood that term " on ", D score, "front", "rear",
The orientation of the instruction such as "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward " or position
Relation of putting, for based on orientation shown in the drawings or position relationship, is for only for ease of description this utility model and letter
Change and describe rather than indicate or imply that the device of indication or element must have specific orientation, with specifically
Azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint
Relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ",
The feature of " second " can express or implicitly include at least one this feature.Retouch of the present utility model
In stating, " multiple " are meant that at least two, such as two, three etc., unless otherwise the most concrete
Limit.
In this utility model, unless otherwise clearly defined and limited, term " install ", " being connected ",
" connect ", the term such as " fixing " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be can
Dismounting connects, or integral；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together,
Can also be indirectly connected to by intermediary, can be connection or two elements mutual of two element internals
Interactively, unless otherwise clear and definite restriction.For the ordinary skill in the art, can basis
Concrete condition understands above-mentioned term concrete meaning in this utility model.
In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on "
Or D score can be that the first and second features directly contact, or the first and second features are by middle matchmaker
Jie's mediate contact.And, fisrt feature second feature " on ", " top " and " above "
Fisrt feature is directly over second feature or oblique upper, or is merely representative of fisrt feature level height
Higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " permissible
Be fisrt feature immediately below second feature or obliquely downward, or it is little to be merely representative of fisrt feature level height
In second feature.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ",
It is concrete that the description of " concrete example " or " some examples " etc. means to combine this embodiment or example describes
Feature, structure, material or feature are contained at least one embodiment of the present utility model or example.?
In this specification, the schematic representation of above-mentioned term is necessarily directed to identical embodiment or example.
And, the specific features of description, structure, material or feature can be with one or more embodiments in office or show
Example combines in an appropriate manner.Additionally, in the case of the most conflicting, those skilled in the art can
Carry out with the feature of the different embodiments described in this specification or example and different embodiment or example
In conjunction with and combination.
Although above it has been shown and described that embodiment of the present utility model, it is to be understood that above-mentioned reality
It is exemplary for executing example, it is impossible to be interpreted as that, to restriction of the present utility model, those of ordinary skill in the art exists
Above-described embodiment can be changed in the range of this utility model, revise, replace and modification.
Claims (10)
1. a water heater, it is characterised in that including:
Housing；
Water circuit system, described water circuit system is located in described housing；
For the wire powered to described water heater；
For detecting the current transformer of described current in wire；
The safety protective valve of the break-make of current in controlling described water circuit system；
Controller; described wire is connected with described controller; described controller respectively with described current transformer and described safety protective valve communication; when described current transformer detects the zero line of the described wire current value with the difference between current of live wire or the ground wire of described wire more than or equal to predetermined value I, described controller controls described safety protective valve and cuts off the current of described water circuit system.
Water heater the most according to claim 1, it is characterised in that described current transformer is configured to annular, and described wire is through described current transformer.
Water heater the most according to claim 2, it is characterised in that described zero line is connected with described controller with described live wire, described ground wire is connected with described housing.
Water heater the most according to claim 1, it is characterised in that described predetermined value I meets: I >=5mA.
Water heater the most according to claim 4, it is characterised in that described predetermined value I meets: I=7mA or I=12mA.
Water heater the most according to claim 1, it is characterised in that described controller be set on the housing and with the display & control system of described water circuit system communication, the current detection value of described current transformer is shown by described display & control system.
Water heater the most according to claim 1, it is characterised in that described safety protective valve is located on described water circuit system, and arrange adjacent to water inlet end or the water side of described water circuit system.
8. according to the water heater according to any one of claim 1-7, it is characterised in that described water heater is gas heater and described water circuit system includes:
Heat-exchanger rig；
Water feed apparatus, described water feed apparatus connects with described heat-exchanger rig and exposes from described housing；
Discharging device, described discharging device connects with described heat-exchanger rig and exposes from described housing；
For the burner that the water in described heat-exchanger rig is heated；
Controller for gas, described controller for gas connects with described burner and exposes from described housing, described controller and described controller for gas communication；Wherein,
Described safety protective valve is located between described water feed apparatus and described heat-exchanger rig.
Water heater the most according to claim 8, it is characterised in that described water circuit system also includes:
According to water temperature and hydraulic pressure regulating water flow the Flow-rate adjustment feedback device feeding back discharge, described Flow-rate adjustment feedback device be located between water feed apparatus and described heat-exchanger rig and with described controller communication, described controller controls the gas supply ratio of described combustion control system according to the feedback information of described Flow-rate adjustment feedback device.
Water heater the most according to claim 8, it is characterised in that described gas heater also includes:
For discharging the smoke evacuation system of the flue gas that described burner produces, in described smoke evacuation system is located at described housing and connect with the space outerpace of described housing, described controller and described smoke evacuation system communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620374189.5U CN205641568U (en) | 2016-04-29 | 2016-04-29 | Water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620374189.5U CN205641568U (en) | 2016-04-29 | 2016-04-29 | Water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205641568U true CN205641568U (en) | 2016-10-12 |
Family
ID=57061704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620374189.5U Active CN205641568U (en) | 2016-04-29 | 2016-04-29 | Water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205641568U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105783273A (en) * | 2016-04-29 | 2016-07-20 | 芜湖美的厨卫电器制造有限公司 | Water heater |
-
2016
- 2016-04-29 CN CN201620374189.5U patent/CN205641568U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105783273A (en) * | 2016-04-29 | 2016-07-20 | 芜湖美的厨卫电器制造有限公司 | Water heater |
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