CN104532262B - Prevent method and the laundry care machine of laundry care machine heating element electrochemical corrosion - Google Patents
Prevent method and the laundry care machine of laundry care machine heating element electrochemical corrosion Download PDFInfo
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- CN104532262B CN104532262B CN201510009691.6A CN201510009691A CN104532262B CN 104532262 B CN104532262 B CN 104532262B CN 201510009691 A CN201510009691 A CN 201510009691A CN 104532262 B CN104532262 B CN 104532262B
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Abstract
The present invention is applicable to laundry care machine field, disclose method and the laundry care machine preventing laundry care machine heating element electrochemical corrosion, prevent the method for laundry care machine heating element electrochemical corrosion particularly as follows: arrange a cathode protection device on laundry care machine, the negative electricity of cathode protection device is connected on laundry care machine and be used for adding the metal heating element of hot liquid medium, and the positive pole of cathode protection device is electrically connected liquid medium, so that cathode protection device and metal heating element, liquid medium connects formation one current loop, and then the migration of suppression metal heating element own electronic.The present invention, supplements conveying electronics by cathode protection device to the metal heating element of laundry care machine, can reach suppression metal heating element own electronic and migrates the purpose run off, it is therefore prevented that the phenomenon of metal heating element generation electrochemical corrosion.
Description
Technical field
The invention belongs to laundry care machine field, particularly relate to prevent laundry care machine heating element electrochemical corrosion
Method and laundry care machine.
Background technology
The principle of heating of laundry care machine is the heat energy converting electrical energy into water, and it generates heat specifically by metal
Device carries out adding hot water.The metal heating element of laundry care machine in use for some time, easily generates incrustation scale,
In order to prevent the generation of incrustation scale, prior art provides following three kinds of methods:
1) ion-exchange, the method specifically includes two kinds of embodiments, and a kind of mode is handed over for using sodium ion
Change resin to react with the calcium ions and magnesium ions in water, so, can be quickly by sodium ion exchange to water and adsorb
Calcium ions and magnesium ions in water, thus can reach and hard water is thoroughly softened the purpose becoming the water not having calcium ions and magnesium ions；
Another way is to use hydrogen ion exchange resin to react with the part calcium ions and magnesium ions in water, thus up to
To the appropriate purpose reducing hardness of water, which while appropriate calcium ions and magnesium ions, can make in retaining water
Boiled water will not remain incrustation scale again.
2) physical filtering method, the method is specially as motive force and to utilize choosing higher than the pressure of osmotic pressure
The selective penetrated property of selecting property film makes water pass through and makes the impervious mode of solute extract the film of fresh water from water body
Separation process.
3) method of chemical treatment, the method is specially and uses Si-P crystal or the chemical drugs such as NaOH or tertiary sodium phosphate
Agent carries out preventing incrustation scale from producing or suppressing its deposition growing.
Said method all can effectively prevent the generation of incrustation scale, but, the metal heating element of existing laundry care machine
Still suffering from weak point in a particular application, concrete embodiment is as follows: the metal heating of current laundry care machine
Device is mainly made up of the metal material that aluminium or iron or copper etc. are the most active, in wet condition, and aluminium or iron or copper
Deng metal surface can adhere to one layer conduction moisture film, so so that the metal surface of metal heating element and self
Many small galvanic cells can be constituted between impurity, thus result in metal heating element electrochemical corrosion phenomenon
Occur, and the above-mentioned measure preventing incrustation scale from generating can not prevent sending out of metal heating element electrochemical corrosion phenomenon
Raw, and then (corrosion of aluminium matter heating element is produced to make metal heating element generate substantial amounts of rust deposite within the extremely short time
Raw hydroxide, the corrosion of irony heating element produces iron rust, and the corrosion of copper heating element produces basic copper carbonate),
And at the use initial stage of these laundry care machines, the embroidery dirt that electrochemical corrosion produces stays after often evaporating than water
Incrustation scale even more serious, and then the life-span of metal heating element and performance are severely impacted.
Specifically, the process of aluminium matter heating element generation electrochemical corrosion is as follows:
Negative pole (Al): Al-3eˉ=Al3+
Positive pole (impurity): 2H++2eˉ=H2 ↑
Overall reaction: 2Al+6H2O=2Al (OH)3+3H2↑
Wherein, Al (OH)3For white flock precipitate.
The process of irony heating element generation electrochemical corrosion is as follows:
(1) gas-evolving electrodes (when steel surface adsorbed film of water acidity is stronger)
Negative pole (Fe): Fe-2eˉ=Fe2+
Fe2++2H2O=Fe (OH)2+2H+
Positive pole (impurity): 2H++2eˉ=H2↑
Overall reaction: Fe+2H2O=Fe (OH)2+H2↑
Owing to its corrosion process having hydrogen to release, therefore referred to as gas-evolving electrodes.
(2) oxygen uptake corrosion (when steel surface adsorbed film of water acidity is more weak)
Negative pole (Fe): Fe-2eˉ=Fe2+
Positive pole: O2+2H2O+4eˉ=4OHˉ
Overall reaction: 2Fe+O2+2H2O=2Fe (OH)2
Owing to its corrosion process absorbing oxygen, therefore referred to as oxygen uptake corrosion.
The Fe (OH) that gas-evolving electrodes generates with oxygen uptake corrosion2Aoxidized by oxygen, generate Fe (OH)3Dehydration generates
Fe2O3Iron rust, concrete reaction equation is 4Fe (OH)2+O2+2H2O=4Fe (OH)3
In concrete application, the electrochemical corrosion of irony heating element is mainly oxygen uptake corrosion.
The process of copper heating element generation electrochemical corrosion is as follows:
2Cu—4eˉ=2Cu2+
2H2O+O2+4eˉ=4OHˉ
CO2+2OHˉ=CO3 2-+H2O
Overall reaction: 2Cu+2H2O+O2+CO2=Cu2(OH)2CO3(basic copper carbonate, i.e. verdigris).
Summary of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, it is provided that prevent laundry care machine from generating heat
The method of device electrochemical corrosion and laundry care machine, which solve existing laundry care machine metal heating element due to
Electrochemical corrosion is occurred to cause service life and the technical problem of performance reduction.
For reaching above-mentioned purpose, the technical solution used in the present invention is: prevent laundry care machine heating element electrification
The method learning corrosion, arranges a cathode protection device, by described cathode protection device on laundry care machine
Negative electricity connects for adding the metal heating element of hot liquid medium on laundry care machine, and by described cathodic protection
The positive pole of device electrically connects described liquid medium, so that described cathode protection device and described metal heating element,
Described liquid medium connects formation one current loop, and then suppresses the migration of described metal heating element own electronic.
Specifically, described cathode protection device has out-put supply, electric conductor, the first connection wire and second
Connect wire, and described out-put supply is provided with positive pole and negative pole and makes its constant polarity, by described first even
Connect the negative pole being electrically connected to both ends of described metal heating element and described out-put supply of wire, by described second
Connect wire the positive pole being electrically connected to both ends of described electric conductor and described out-put supply, make simultaneously described in lead
Electricity body contacts with described liquid medium.
Specifically, described out-put supply uses dc source；Or, described out-put supply employing AC power,
Transformer and the combination of rectifier.
Preferably, described electric conductor is arranged in described from the top of described metal heating element or bottom or sidepiece
In metal heating element, and described electric conductor is made to contact with the described liquid medium in described metal heating element.
Preferably, by described electric conductor by horizontal-extending or tilt extension in the way of from described metal heating element
Sidepiece is arranged in described metal heating element.
Further, in the above-mentioned method preventing laundry care machine heating element electrochemical corrosion, water is set up
Case, is connected further between described water tank with described metal heating element and arranges conveying pipe fitting, and lead described
Electricity body is arranged on described metal heating element and contacts with the described liquid medium in described metal heating element；Or
Person, is arranged in described electric conductor on described water tank and contacts with the described liquid medium in described water tank；Or
Person, described electric conductor is arranged on described conveying pipe fitting and with the described liquid medium in described conveying pipe fitting
Contact.
Specifically, described electric conductor is arranged in described water tank from the top of described water tank or bottom or sidepiece,
And described electric conductor is contacted with the described liquid medium in water tank.
Preferably, described electric conductor uses inert metal or graphite to make, or, outside described electric conductor uses
Surface is coated with the conductive member of inert metal.
Preferably, described metal heating element uses aluminium or iron material or copper material to make.
The method preventing laundry care machine heating element electrochemical corrosion that the present invention provides, is filled by cathodic protection
The negative pole put and positive pole are electrically connected metal heating element and liquid medium and form a current loop, so,
Can reach the purpose supplementing electronics to metal heating element, thus can reach suppression metal heating element own electronic and move
The purpose that advection is lost, and then effectively prevent the generation of metal heating element electrochemical corrosion phenomenon, high degree
Reduce electrochemical corrosion phenomenon to metal heating element service life and the impact of performance.
Present invention also offers laundry care machine, it includes cathode protection device and for adding hot liquid medium
Metal heating element, described cathode protection device has positive pole and negative pole, described cathode protection device and described gold
Belong to heating element, described liquid medium connects formation one current loop, and described negative electricity connects described metal and sends out
Hot device, described positive pole electrically connects described liquid medium.
Preferably, described cathode protection device includes having the defeated of described positive pole and described negative pole and constant polarity
Go out electric conductor that power supply contacts with described liquid medium, be electrically connected to described metal heating element and described negative pole
Between the first connection wire and be electrically connected between described electric conductor with described positive pole second be connected wire.
Specifically, described out-put supply is dc source；Or, described out-put supply is AC power, change
Depressor and the combination of rectifier.
Specifically, described electric conductor is arranged in described gold from the top of described metal heating element or bottom or sidepiece
Belong in heating element, and described electric conductor contacts with the described liquid medium in described metal heating element.
More specifically, described electric conductor by horizontal-extending or tilt extension in the way of from described metal heating element
Sidepiece is arranged in described metal heating element.
Further, laundry care machine also includes that water tank and pipeline are connected to described water tank and generate heat with described metal
Conveying pipe fitting between device, described electric conductor be arranged on described metal heating element and with described metal heating element
Interior described liquid medium contact；Or, described electric conductor be arranged on described water tank and with in described water tank
Described liquid medium contact；Or, described electric conductor be arranged on described conveying pipe fitting and with described conveying
Described liquid medium contact in pipe fitting.
Specifically, described electric conductor is arranged in described water tank from the top of described water tank or bottom or sidepiece,
And described electric conductor contacts with the described liquid medium in water tank.
Preferably, described electric conductor uses inert metal or graphite to make, or, described electric conductor is appearance
Topcoating is covered with the conductive member of inert metal.
Preferably, described metal heating element uses aluminium or iron material or copper material to make.
The laundry care machine that the present invention provides, generates heat for realizing the above-mentioned laundry care machine that prevents owing to having
The structure of the method for device electrochemical corrosion, therefore, its service life that laundry care machine is effectively ensured and performance,
Thus improve the reliability of laundry care machine, and then improve the competitiveness of product in market.
Accompanying drawing explanation
Fig. 1 be the embodiment of the present invention one provide for realize prevent laundry care machine heating element electrochemical corrosion
The schematic diagram of structure of method.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and reality
Execute example, the present invention is further elaborated.Only should be appreciated that specific embodiment described herein
Only in order to explain the present invention, it is not intended to limit the present invention.
It should be noted that when element is referred to as on " being fixed on " or " being arranged at " another element,
It can be directly on another element or may be simultaneously present centering elements.When an element is known as
" connecting " another element, it can be to be directly connected to another element or may be simultaneously present unit placed in the middle
Part.
Also, it should be noted the orientation term such as left and right, upper and lower, top in the embodiment of the present invention, end,
It is only relative concept or with the normal operating condition of product as reference each other, and should not be regarded as having
Restrictive.
As it is shown in figure 1, the embodiment of the present invention one provide prevent laundry care machine heating element electrochemical corrosion
Method particularly as follows: arrange a cathode protection device 2 on laundry care machine, negative by cathode protection device 2
For adding the metal heating element 1 of hot liquid medium 100 on pole electrical connection laundry care machine, and by cathodic protection
The positive pole electrical connection liquid medium 100 of device 2, so that cathode protection device 2 and metal heating element 1, liquid
Medium 100 connects formation one current loop, and then the migration of suppression metal heating element 1 own electronic.Liquid
The mixed liquor of medium 100 concretely water or water and solute.What the present embodiment provided prevents laundry care machine
The method of heating element electrochemical corrosion, by cathode protection device 2 by metal heating element 1 and liquid medium 100
Connect and form current loop, and make metal heating element 1 be in the cathode terminal of current loop, make liquid medium
100 anode taps being in current loop, so, be can reach to metal heating element 1 by cathode protection device 2
Supplement the purpose of electronics, thus can reach suppression metal heating element 1 own electronic and migrate the purpose run off, enter
And effectively prevent the generation of metal heating element 1 electrochemical corrosion phenomenon, reduce electrochemistry dramatically
Corrosion phenomenon is on metal heating element 1 service life and the impact of performance.
Preferably, metal heating element 1 uses aluminium or iron material or copper material to make, i.e. the embodiment of the present invention one carries
The method preventing laundry care machine heating element electrochemical corrosion of confession is preferably applied to aluminum heating element or iron
On hot device or copper heating element, owing to aluminum heating element, iron heating element, copper heating element are at wet environment
Under be all susceptible to electrochemical corrosion phenomenon, therefore, what it obtained prevents metal heating element 1 electrochemical corrosion existing
Effect as occurring is more notable, thus improves aluminum heating element, iron heating element and copper dramatically
Heating element processed is in reliability and service life.
Specifically, cathode protection device 2 has out-put supply 21, electric conductor 22, first connects wire 23
Connect wire 24 with second, and out-put supply 21 is provided with positive pole and negative pole and makes its constant polarity, by the
One negative pole being electrically connected to both ends of metal heating element 1 and out-put supply 21 connecting wire 23, by second
Connect the positive pole being electrically connected to both ends of electric conductor 22 and out-put supply 21 of wire 24, make electric conductor simultaneously
22 contact with liquid medium 100.The constant polarity of out-put supply 21, refers to the polarity of out-put supply 21 not
Can change, i.e. the positive pole of out-put supply 21 will not convert with negative pole.The present embodiment, by out-put supply 21,
Electric conductor 22, first connects wire 23 and the mating reaction of the second connection wire 24, can effectively be protected by negative electrode
Protection unit 2 is connected formation return curcuit with metal heating element 1, liquid medium 100, and metal is generated heat
Device 1 is in the cathode terminal of return curcuit, thus reaches effectively to suppress metal heating element 1 own electronic to migrate stream
Lose the purpose that electrochemical corrosion phenomenon occurs.First setting connecting wire 23, except realizing metal heating
Outside the electrical connection effect of device 1 and negative pole；Also can avoid directly connecing of out-put supply 21 and metal heating element 1
Touch, and owing to metal heating element 1 can produce substantial amounts of heat in running, therefore, out-put supply 21
With metal heating element 1 do not contact setting, can prevent the heat on metal heating element 1 be directly delivered to output
On power supply 21, and then it is beneficial to ensure the service life of out-put supply 21.
Preferably as a specific embodiments of above-mentioned out-put supply 21 set-up mode, out-put supply 21
Use dc source, dc source concretely dry cell or battery or dc generator etc., dc source
Constant polarity, meet the design performance requirement of out-put supply 21.A preferable embodiment party as the present embodiment
Case, out-put supply 21 is dry cell, and dry cell has small, low cost, easy-to-install feature, this
Sample, can make the method preventing laundry care machine heating element electrochemical corrosion of the present embodiment be easier to realize
And it is lower to realize cost.
Or, as another specific embodiments of above-mentioned out-put supply 21 set-up mode, out-put supply 21
May be used without the combination of AC power, transformer and rectifier, so, by the rectified action of rectifier,
Also can reach the purpose of the constant polarity making out-put supply 21, thus also can meet the design of out-put supply 21
In performance requirement, and the present embodiment, the output voltage of out-put supply 21 is adjustable, so, and can be according to tool
Body behaviour in service (such as fouling condition, the fouling condition on electric conductor 22 surface on metal heating element 1 surface) is entered
The output voltage of row flexible modulation out-put supply 21, thus it is beneficial to ensure the current value of return curcuit, Jin Eryou
Effect ensure that cathode protection device 2 prevents metal heating element 1 from the reliability of electrochemical corrosion phenomenon occurring.
Preferably, electric conductor 22 is arranged in metal heating from the top of metal heating element 1 or bottom or sidepiece
In device 1, and make electric conductor 22 contact with the liquid medium 100 in metal heating element 1, so, be all up
To the purpose making electric conductor 22 electrically connect with the liquid medium 100 in metal heating element 1.
It is further preferable that electric conductor 22 wears the sidepiece being installed on metal heating element 1, and its one end extends
Liquid medium 100 in contacting metal heating element 1.Electric conductor 22 wears the side being installed on metal heating element 1
Portion, the most comparable installation realizing electric conductor 22 is fixed, and is made it in the installation of metal heating element 1
Location comparison is flexible, and the cabling that on the other hand can make the second connection wire 24 is more convenient.Specifically, originally
Embodiment, wears electric conductor 22 from the sidepiece of metal heating element 1 in the way of horizontal-extending or inclination extend
In metal heating element 1, so, all can realize electric conductor 22 and wear installation at metal heating element 1 sidepiece.
Of coursing, in concrete application, electric conductor 22 can also vertically extend or tilt the mode extended and generate heat from metal
The top of device 1 or bottom are arranged in metal heating element 1.
Further, also can increase in the above-mentioned method preventing laundry care machine heating element electrochemical corrosion
If water tank 3, it is connected further between water tank 3 with metal heating element 1 and conveying pipe fitting 4 is set, and will conduction
Body 22 is arranged on metal heating element 1 and contacts with the liquid medium 100 in metal heating element 1；Or,
Electric conductor 22 is arranged on water tank 3 and contacts with the liquid medium 100 in water tank 3；Or, will conduction
Body 22 is arranged on conveying pipe fitting 4 and contacts with the liquid medium 100 in conveying pipe fitting 4.Metal heating element
1 has the accommodating heating chamber 11 of medium 100 for liquid, and water tank 3 has the accommodating storage of medium 100 for liquid
Water cavity 31, conveying pipe fitting 4 has the hollow endoporus 41 of medium 100 flowing for liquid, and hollow endoporus 41 can
Being connected with water storage cavity 31 in heating chamber 11, so, no matter electric conductor 22 is and the liquid in heating chamber 11
Medium 100 contact or contact with the liquid medium 100 in water storage cavity 31 or with in hollow endoporus 41
Liquid medium 100 contact, be all up making cathode protection device 2 and metal heating element 1, liquid medium
100 connect the purpose forming current loop, thus are all up preventing metal heating element 1 from occurring electrochemistry rotten
The purpose of erosion phenomenon.
Specifically, electric conductor 22 can be arranged in water tank 3 from the top of water tank 3 or bottom or sidepiece, and
Electric conductor 22 is contacted with the liquid medium 100 in water tank 3, so, is all up making electric conductor 22 electricity
The purpose of the liquid medium 100 in connection water tank 3.More specifically, electric conductor 22 can with horizontal-extending or
Tilt the mode extended to be arranged in water tank 3 from the sidepiece of water tank 3, or, electric conductor 22 can also be with perpendicular
The mode that straight extension or inclination extend is arranged in water tank 3 from the top of water tank 3 or bottom.
Further, also can be provided for control piper on conveying pipe fitting 4 and lead to the stop valve closed, so,
It is beneficial to the repair and maintenance in the future of product.
Preferably, electric conductor 22 uses inert metal or graphite to make, or, electric conductor 22 uses appearance
Topcoating is covered with the conductive member of inert metal, so, is beneficial to prevent electric conductor 22 surface from electrochemical corrosion occurring
Phenomenon, thus it is beneficial to ensure the reliability of electric conductor 22, and then it is beneficial to ensure the service life of electric conductor 22
And electric conductivity.Inert metal concretely silver, platinum, gold etc..
Further, the embodiment of the present invention one additionally provides laundry care machine, and it includes cathode protection device 2
With the metal heating element 1 for adding hot liquid medium 100, cathode protection device 2 has positive pole and negative pole,
Cathode protection device 2 is connected formation one current loop, and negative pole with metal heating element 1, liquid medium 100
Electrical connection metal heating element 1, positive pole electrical connection liquid medium 100.The laundry care machine that the present embodiment provides,
May also include the support (not shown) for hanging clothing, it above-mentioned prevents laundry care owing to have employed
The method of machine heating element electrochemical corrosion prevents metal heating element 1 from electrochemical corrosion occurring, therefore, it is effectively protected
The service life of card laundry care machine and performance, thus improve the reliability of laundry care machine, and then
Improve the competitiveness of product in market.
Preferably, in the laundry care machine that the embodiment of the present invention one provides, metal heating element 1 is by aluminium or iron
Material or copper material are made, and what i.e. the embodiment of the present invention one provided prevents laundry care machine heating element electrochemical corrosion
Method is preferably applied on aluminum heating element or iron heating element or copper heating element.
Preferably, in the laundry care machine that the embodiment of the present invention one provides, cathode protection device 2 includes having
Electric conductor 22 that positive pole contacts with liquid medium 100 with the out-put supply 21 of negative pole and constant polarity, it is electrically connected
First be connected between metal heating element 1 and negative pole is connected wire 23 and is electrically connected to electric conductor 22 and positive pole
Between second connection wire 24.
Preferably, out-put supply 21 can be dc source, and dc source concretely dry cell or battery
Or dc generator etc., it is highly preferred that out-put supply 21 is preferably dry cell；Or, out-put supply 21
It is alternatively the combination of AC power, transformer and rectifier.
Preferably, electric conductor 22 can be arranged in metal heating from the top of metal heating element 1 or bottom or sidepiece
In device 1.It is further preferable that electric conductor 22 wears the sidepiece being installed on metal heating element 1, and its one end is prolonged
Stretch the liquid medium 100 in contacting metal heating element 1.Electric conductor 22 wears and is installed on metal heating element 1
Sidepiece.Specifically, electric conductor 22 by horizontal-extending or tilt extension in the way of from the sidepiece of metal heating element 1
It is arranged in metal heating element 1.
Preferably, the laundry care machine that the embodiment of the present invention one provides, also include that water tank 3 and pipeline are connected to
Conveying pipe fitting 4 between water tank 3 and metal heating element 1, electric conductor 22 is arranged on metal heating element 1 also
Contact with the liquid medium 100 in metal heating element 1；Or, electric conductor 22 be arranged on water tank 3 and with
Liquid medium 100 in water tank 3 contacts；Electric conductor 22 be arranged in conveying pipe fitting 4 on and with conveying pipe fitting 4
Interior liquid medium 100 contacts.
Specifically, electric conductor 22 is arranged in water tank 3 from the top of water tank 3 or bottom or sidepiece, and conduction
Body 22 contacts with the liquid medium 100 in water tank 3.More specifically, electric conductor 22 can be with horizontal-extending
Or tilt the mode extended and be arranged in water tank 3 from the sidepiece of water tank 3, or, electric conductor 22 can also be with
Vertically extend or tilt the mode extended and be arranged in water tank 3 from the top of water tank 3 or bottom.
Further, conveying pipe fitting 4 also can be provided with and lead to the stop valve closed for control piper, so, profit
Repair and maintenance in the future in product.
Preferably, electric conductor 22 is made up of inert metal or graphite, or, electric conductor 22 is appearance topcoating
It is covered with the conductive member of inert metal.Inert metal concretely silver, platinum, gold etc..
As a specific embodiments of the embodiment of the present invention, laundry care machine is Garment Steamer Machine, and it is by hanging
Scald and the structure that can realize the above-mentioned method preventing laundry care machine heating element electrochemical corrosion is set on machine, can
There is electrochemical corrosion phenomenon in the effectively metal heating element 1 of suppression Garment Steamer Machine, thus further increases hanging
The reliability of machine and service life.
Embodiment two:
In the method preventing laundry care machine heating element electrochemical corrosion that the present embodiment provides, protected by negative electrode
Protection unit 2 directly launches electronics to metal heating element 1, to suppress the migration of metal heating element 1 own electronic.
Accordingly, in the laundry care machine that the present embodiment provides, cathode protection device 2 is can be to metal heating element 1
Launch the electron emitter (such as electron gun etc.) of electronics.The present embodiment differs primarily in that with embodiment one,
Cathode protection device 2 in embodiment one makes to be connected between metal heating element 1 with liquid medium 100 formation
One current loop, and the cathode protection device 2 in the present embodiment does not make metal heating element 1 and liquid
Connect between body medium 100 and form current loop, and simply by cathode protection device 2 the most individually to metal
Heating element 1 launches electronics, so, has also reached to supplement the purpose of electronics to metal heating element 1 due to it,
So also can reach suppression metal heating element 1 own electronic to migrate the purpose run off, and then also effectively prevent
The generation of metal heating element 1 electrochemical corrosion phenomenon.
Specifically, the present embodiment provide the method preventing laundry care machine heating element electrochemical corrosion it is also preferred that
It is applicable on aluminum heating element or iron heating element or copper heating element, so, can make what it obtained to prevent gold
The effect belonging to the generation of heating element 1 electrochemical corrosion phenomenon is more notable, thus improves aluminum dramatically
Heating element, iron heating element and copper heating element are in reliability and service life.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Any amendment, equivalent or the improvement etc. made within bright spirit and principle, should be included in the present invention
Protection domain within.
Claims (18)
1. the method preventing laundry care machine heating element electrochemical corrosion, it is characterised in that: at laundry care machine
On a cathode protection device is set, the negative electricity of described cathode protection device is connected on laundry care machine and is used for
Add the metal heating element of hot liquid medium, and the positive pole of described cathode protection device is electrically connected described liquid Jie
Matter, so that described cathode protection device is connected formation one electric current with described metal heating element, described liquid medium
Loop, and then suppress the migration of described metal heating element own electronic.
The method preventing laundry care machine heating element electrochemical corrosion the most as claimed in claim 1, its feature
It is: described cathode protection device has out-put supply, electric conductor, the first connection wire and the second connection leads
Line, and described out-put supply is provided with positive pole and negative pole and makes its constant polarity, will described first connection wire
The negative pole being electrically connected to both ends of described metal heating element and described out-put supply, by described second connect lead
The positive pole being electrically connected to both ends of described electric conductor and described out-put supply of line, make simultaneously described electric conductor with
Described liquid medium contacts.
The method preventing laundry care machine heating element electrochemical corrosion the most as claimed in claim 2, its feature
It is: described out-put supply uses dc source；Or, described out-put supply uses AC power, transformation
Device and the combination of rectifier.
The method preventing laundry care machine heating element electrochemical corrosion the most as claimed in claim 2 or claim 3, its
It is characterised by: described electric conductor is arranged in described gold from the top of described metal heating element or bottom or sidepiece
Belong in heating element, and make described electric conductor contact with the described liquid medium in described metal heating element.
The method preventing laundry care machine heating element electrochemical corrosion the most as claimed in claim 4, its feature
It is: described electric conductor is worn from the sidepiece of described metal heating element in the way of horizontal-extending or inclination extend
It is located in described metal heating element.
The method preventing laundry care machine heating element electrochemical corrosion the most as claimed in claim 2, its feature
It is: set up water tank, is connected further between described water tank with described metal heating element and conveying pipe fitting is set,
And described electric conductor is arranged on described metal heating element and is situated between with the described liquid in described metal heating element
Matter contacts；Or, described electric conductor is arranged on described water tank and is situated between with the described liquid in described water tank
Matter contacts；Or, described electric conductor is arranged on described conveying pipe fitting and with the institute in described conveying pipe fitting
State liquid medium contact.
The method preventing laundry care machine heating element electrochemical corrosion the most as claimed in claim 6, its feature
It is: described electric conductor is arranged in described water tank from the top of described water tank or bottom or sidepiece, and will
Described electric conductor contacts with the described liquid medium in water tank.
8. as described in Claims 2 or 3 or 6 or 7, prevent laundry care machine heating element electrochemical corrosion
Method, it is characterised in that: described electric conductor uses inert metal or graphite to make, or, described electric conductor
Outer surface is used to have the conductive member of inert metal.
9. prevent laundry care machine heating element electrochemistry rotten as described in claim 1 or 2 or 3 or 6 or 7
The method of erosion, it is characterised in that: described metal heating element uses aluminium or iron material or copper material to make.
10. laundry care machine, including the metal heating element for adding hot liquid medium, it is characterised in that: also
Including cathode protection device, described cathode protection device has positive pole and a negative pole, described cathode protection device with
Described metal heating element, described liquid medium connect formation one current loop, and described negative electricity connects described
Metal heating element, described positive pole electrically connects described liquid medium.
11. laundry care machines as claimed in claim 10, it is characterised in that: described cathode protection device bag
Include and there is described positive pole and the out-put supply of described negative pole and constant polarity and leading that described liquid medium contacts
Electricity body, first be electrically connected between described metal heating element and described negative pole are connected wire and are electrically connected to institute
Second stated between electric conductor with described positive pole is connected wire.
12. laundry care machines as claimed in claim 11, it is characterised in that: described out-put supply is direct current
Power supply；Or, described out-put supply is the combination of AC power, transformer and rectifier.
The 13. laundry care machines as described in claim 11 or 12 is characterized in that: as described in electric conductor from institute
State the top of metal heating element or bottom or sidepiece be arranged in described metal heating element, and described electric conductor with
Described liquid medium contact in described metal heating element.
14. laundry care machines as claimed in claim 13, it is characterised in that: described electric conductor prolongs with level
Stretch or tilt the mode extended and be arranged in described metal heating element from the sidepiece of described metal heating element.
15. laundry care machines as claimed in claim 11, it is characterised in that: also include water tank and pipeline even
Being connected to the conveying pipe fitting between described water tank and described metal heating element, described electric conductor is arranged in described metal
Contact on heating element and with the described liquid medium in described metal heating element；Or, described electric conductor wears
Contact on described water tank and with the described liquid medium in described water tank；Or, described electric conductor is arranged in
Contact on described conveying pipe fitting and with the described liquid medium in described conveying pipe fitting.
16. laundry care machines as claimed in claim 15, it is characterised in that: described electric conductor is from described water
The top of case or bottom or sidepiece are arranged in described water tank, and the described liquid in described electric conductor and water tank
Medium contacts.
The 17. laundry care machines as described in claim 11 or 12 or 15 or 16, it is characterised in that: institute
Stating electric conductor uses inert metal or graphite to make, or, described electric conductor is that outer surface has inertia gold
The conductive member belonged to.
The 18. laundry care machines as described in claim 10 or 11 or 12 or 15 or 16, it is characterised in that:
Described metal heating element uses aluminium or iron material or copper material to make.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510009691.6A CN104532262B (en) | 2015-01-07 | 2015-01-07 | Prevent method and the laundry care machine of laundry care machine heating element electrochemical corrosion |
| EP15876643.6A EP3243932B1 (en) | 2015-01-07 | 2015-10-27 | Method and device for preventing electrochemical corrosion of clothes care machine heater, steam generator, and clothes care machine |
| PCT/CN2015/092981 WO2016110142A1 (en) | 2015-01-07 | 2015-10-27 | Method and device for preventing electrochemical corrosion of clothes care machine heater, steam generator, and clothes care machine |
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| CN201510009691.6A CN104532262B (en) | 2015-01-07 | 2015-01-07 | Prevent method and the laundry care machine of laundry care machine heating element electrochemical corrosion |
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| CN104532262A CN104532262A (en) | 2015-04-22 |
| CN104532262B true CN104532262B (en) | 2016-08-17 |
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| WO2016110142A1 (en) * | 2015-01-07 | 2016-07-14 | 佛山市顺德区美的电热电器制造有限公司 | Method and device for preventing electrochemical corrosion of clothes care machine heater, steam generator, and clothes care machine |
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| US4975560A (en) * | 1989-09-06 | 1990-12-04 | A.O. Smith Corporation | Apparatus for powering the corrosion protection system in an electric water heater |
| US6871014B2 (en) * | 2002-04-26 | 2005-03-22 | The Coca-Cola Company | Water treatment system and water heater with cathodic protection and method |
| ITAN20050037A1 (en) * | 2005-07-20 | 2007-01-21 | Merloni Termosanitari Spa | STORAGE WATER HEATER WITH ADJUSTABLE CATHODIC PROTECTION |
| CN201506932U (en) * | 2009-09-22 | 2010-06-16 | 美的集团有限公司 | Hanging ironing machine |
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