CN215179539U - Metal consumption detection assembly and electric heating equipment - Google Patents
Metal consumption detection assembly and electric heating equipment Download PDFInfo
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- CN215179539U CN215179539U CN202121131000.7U CN202121131000U CN215179539U CN 215179539 U CN215179539 U CN 215179539U CN 202121131000 U CN202121131000 U CN 202121131000U CN 215179539 U CN215179539 U CN 215179539U
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Abstract
The application relates to a metal consumption detection assembly and electric heating equipment, wherein a first electrode and a second electrode are arranged on a metal device, the first electrode and the second electrode are connected through the metal device, and the first electrode and the second electrode are both connected to a processing device. As the metal device is consumed, the metal device between the first electrode and the second electrode is gradually decreased, and even the first electrode and/or the second electrode is finally peeled off from the metal device. In the consumption process of the metal device, the sampling voltage and/or the sampling resistance acquired by the processing device through the first electrode and the second electrode are/is changed correspondingly, and the processing device obtains the consumption state information of the metal device according to the voltage and/or resistance change state. Through the scheme, when the metal device is consumed to a certain degree, the processing device can timely detect the consumption state of the metal device, and then a user can conveniently know the consumption state of the metal device.
Description
Technical Field
The application relates to the technical field of metal protection, in particular to a metal consumption detection assembly and electric heating equipment.
Background
With the development of the electric heating technology, electric heating equipment represented by an electric water heater is more and more widely used in daily life of people. Since tap water generally contains a large amount of free metal ions, the metal ions can deprive the heating rod of the electric heating device or free electrons of the water tank without external interference, and the heating rod and the water tank are corroded. On this basis, a metal protection device with more active oxidation properties, such as a magnesium rod, is often placed in the water tank of the electric heating device, and according to the principle of cathodic protection, the metal protection device can preferentially react with free metal ions, thereby protecting the heating rod and the water tank of the electric heating device from corrosion.
However, the metal protection device belongs to a consumable, and as the service life of the electric heating device increases, the metal protection device is gradually consumed and needs to be replaced. Because the metal protection device is arranged in the water tank and cannot be directly watched, a user cannot directly judge the consumption state of the metal protection device.
SUMMERY OF THE UTILITY MODEL
Based on this, it is necessary to provide a metal consumption detection assembly and an electric heating apparatus for solving the problem that a user cannot directly judge the consumption state of the metal protection device.
A metal consumption detection assembly comprising: a metal device; a first electrode disposed on the metal device; the second electrode is arranged on the metal device and is not in contact with the first electrode; and the first electrode and the second electrode are respectively connected with the processing device, and the processing device is used for obtaining consumption state information of the metal device according to the sampling voltage and/or the sampling resistance.
In one embodiment, the metal device is disposed in a solution containing an impurity, the oxidation property of the metal device being stronger than the oxidation property of the impurity.
In one embodiment, the processing apparatus includes a voltage-dividing resistor and a processor, a first end of the voltage-dividing resistor is connected to a power supply terminal of the processor, a second end of the voltage-dividing resistor is connected to a sampling terminal of the processor and the first electrode, the second electrode is connected to a ground terminal of the processor, the power supply terminal of the processor is used for connecting a power supply, and the ground terminal of the processor is grounded.
In one embodiment, the processing apparatus includes a voltage-dividing resistor and a processor, the first electrode is connected to a power supply terminal of the processor, the second electrode is connected to a sampling terminal of the processor and a first terminal of the voltage-dividing resistor, a second terminal of the voltage-dividing resistor is grounded, the power supply terminal of the processor is used for connecting a power supply, and a ground terminal of the processor is grounded.
In one embodiment, the metal consumption detection assembly further comprises an insulating mandrel around which the metal device is disposed, the first and second electrodes being located on opposite sides of the insulating mandrel, respectively.
In one embodiment, the first electrode and the second electrode are both metal electrode pads, and the oxidation property of the first electrode and the second electrode is weaker than that of the metal device.
In one embodiment, the metal consumption detection assembly further comprises an information prompting device, and the information prompting device is connected with the processing device.
In one embodiment, the metal device is a magnesium rod.
An electric heating device comprises the metal consumption detection assembly.
In one embodiment, the electrical heating device is an electric water heater.
According to the metal consumption detection assembly and the electric heating equipment, the first electrode and the second electrode are arranged on the metal device, the first electrode and the second electrode are connected through the metal device, and the first electrode and the second electrode are both connected to the processing device. As the metal device is consumed, the metal device between the first electrode and the second electrode is gradually decreased, and even the first electrode and/or the second electrode is finally peeled off from the metal device. In the consumption process of the metal device, the sampling voltage and/or the sampling resistance acquired by the processing device through the first electrode and the second electrode are/is changed correspondingly, and the processing device obtains the consumption state information of the metal device according to the voltage and/or resistance change state. Through the scheme, when the metal device is consumed to a certain degree, the processing device can timely detect the consumption state of the metal device, and then a user can conveniently know the consumption state of the metal device.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a metal consumption detecting assembly according to an embodiment;
FIG. 2 is a schematic diagram of a metal device structure according to an embodiment;
FIG. 3 is a schematic view of another embodiment of a metal consumption detecting assembly;
FIG. 4 is a schematic diagram of a metal consumption detecting assembly according to yet another embodiment;
FIG. 5 is a schematic diagram of a metal consumption detecting assembly according to yet another embodiment.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Referring to fig. 1, a metal consumption detecting assembly includes: a metal device 10; a first electrode 20 disposed on the metal device 10; a second electrode 30 disposed on the metal device 10 and not in contact with the first electrode 20; and the processing device 40 is used for obtaining the consumption state information of the metal device 10 according to the sampling voltage and/or the sampling resistance.
Specifically, the first electrode 20 and the second electrode 30 are both disposed on the metal device 10, and in a case where the first electrode 20 and the second electrode 30 are respectively connected to the circuit, the first electrode 20 and the second electrode 30 will be communicated through the metal device 10. When the metal device 10 is sufficient, neither the first electrode 20 nor the second electrode 30 is separated from the metal device 10, and the current between the first electrode 20 and the second electrode 30 is transmitted through the metal device 10. As the metal device 10 is consumed, the metal device 10 between the first electrode 20 and the second electrode 30 is gradually decreased, and finally when the metal device 10 is consumed to a certain extent, the first electrode 20 and/or the second electrode 30 is separated from the metal device 10, so that the first electrode 20 and the second electrode 30 cannot be connected through the metal device 10. The processing device 40 samples the voltage and/or the resistance through the first electrode 20 and the second electrode 30 connected thereto to obtain a corresponding sampling voltage and/or a corresponding sampling resistance, and the sampling voltage and/or the sampling resistance also change with the consumption of the metal device 10, so that the consumption detection operation of the metal device 10 can be realized according to the change.
It is understood that the metal device 10 is not unique, and the corresponding arrangement is different in different usage scenarios. For example, in one embodiment, metal device 10 is disposed in a solution containing an impurity, the oxidation properties of metal device 10 being stronger than the oxidation properties of the impurity.
In the scheme of the embodiment, the metal device 10 is arranged in the solution containing the impurities, and the oxidation property of the metal device 10 is stronger than that of the impurities, so that the metal device 10 oxidizes the impurities in the solution to realize the impurity removal operation of the solution. It will be appreciated that the particular type of solution containing impurities is not exclusive and may, for example, in a more detailed embodiment be an aqueous solution containing impurities, an oil containing impurities, or the like.
Further, in one embodiment, the solution containing impurities may be contained in a metal container, and the oxidation property of the metal device is stronger than that of the metal container.
Specifically, the metal device 10 has oxidation properties stronger than those of the metal container, and the metal container may be cathodically protected by the metal device 10 or may be removed by reacting with impurities in the storage solution of the metal container. The type of solution stored in the metal container is not exclusive, and any liquid may be used as long as impurities are present or ions capable of reacting with the metal container to corrode the metal container are present. For example, in a more detailed embodiment, the liquid stored in the metal container is tap water, i.e. an aqueous solution containing impurities, and by the arrangement of the metal device 10 in this embodiment, free ions in the tap water can preferentially react with the metal device 10, thereby preventing the metal container 10 from being corroded. In order to facilitate understanding of the various embodiments of the present application, the following explanation will be given with reference to the case where the liquid stored in the metal container is water containing free ions (e.g., tap water).
The cathodic protection is a protection mode that a metal device 10 made of a metal material with more active oxidation property is protected from reacting with free ions in water by sacrificing a self-preferential metal container. It will be appreciated that the specific type of metal container is not exclusive, and the application scenario of the metal consumption detecting assembly according to the present embodiment is different, and the corresponding metal container may also be different, for example, in one embodiment, the metal container may be a water tank, a water bottle, etc. In order to facilitate understanding of the various embodiments of the present application, a metal container is used as a water tank for explanation.
The first electrode 20 and the second electrode 30 are both disposed on the metal device 10, and when the first electrode 20 and the second electrode 30 are respectively connected to an electric circuit, the first electrode 20 and the second electrode 30 will be connected through the metal device 10. When the metal device 10 is sufficient, neither the first electrode 20 nor the second electrode 30 is separated from the metal device 10, and the current between the first electrode 20 and the second electrode 30 is transmitted through the metal device 10. When the metal device 10 is consumed to a certain extent, the first electrode 20 and/or the second electrode 30 will be separated from the metal device 10, so that the first electrode 20 and the second electrode 30 cannot be connected through the metal device 10, but need to be connected through water in the water tank, and the current between the first electrode 20 and the second electrode 30 is transmitted through the water.
When the first electrode 20 and/or the second electrode 30 are separated from the metal device 10, since the resistivity of water is much greater than that of the metal device 10, the voltage value between the first electrode 20 and the second electrode 30 will change rapidly and the resistance value between the first electrode 20 and the second electrode 30 will also increase rapidly at this time, compared with the case where the first electrode 20 and the second electrode 30 are connected through the metal device 10. The processing device 40 detects the change, and obtains the consumption state information of the metal device 10 accordingly.
It should be noted that the first electrode 20 and the second electrode 30 are not disposed on the metal device 10 only in a manner of being not exclusive, and in one embodiment, since the consumption of the metal device 10 is gradually performed from outside to inside, in order to ensure that the metal device 10 has a sufficient service life, the first electrode 20 and the second electrode 30 may be disposed inside the metal device 10, and it is only necessary to ensure that there is no direct contact between the first electrode 20 and the second electrode 30.
It is to be understood that the metal device 10 is not necessarily disposed in the water tank, and in one embodiment, referring to fig. 2, the metal consumption detecting assembly further includes a connecting member 50, the connecting member 50 is disposed at one end of the metal device 10, and the metal device 10 is disposed in the water tank through the connecting member 50. While the specific form of the connector 50 is not exclusive, in one embodiment it may be implemented using insulated threads, where the metal device 10 will be insulated from the water tank.
Further, in one embodiment, to further improve the service life of the metal device 10, the metal device 10 may be provided in a shape in which the length direction and the width direction substantially coincide. For example, in a more detailed embodiment, the metal device 10 can be configured as a cylinder with the same height and diameter of the bottom surface, and the first electrode 20 and the second electrode 30 are attached to the central axis of the metal device 10 as much as possible, so as to further increase the service life of the metal device 10, and only when the metal device 10 is substantially completely consumed, the first electrode 20 and/or the second electrode 30 is separated from the metal device 10.
Referring to fig. 3, in an embodiment, the processing apparatus 40 includes a voltage-dividing resistor R and a processor (not shown), a first end of the voltage-dividing resistor R is connected to a power source terminal of the processor, a second end of the voltage-dividing resistor R is connected to a sampling terminal and the first electrode 20 of the processor, the second electrode 30 is connected to a ground terminal of the processor, the power source terminal of the processor is used for connecting a power source, and the ground terminal of the processor is grounded.
Specifically, in the scheme of the present embodiment, the sampling voltage is a voltage between the first electrode 20 and the second electrode 30. The processing device 40 has a voltage sampling function, and forms a closed circuit by connecting the first electrode 20 and the second electrode 30, and detects a voltage value and/or a resistance value between the first electrode 20 and the second electrode 30 in real time by using a processor. When the first electrode 20 and the second electrode 30 are connected through the metal device 10, the current output by the power supply flows to the first electrode 20 through the voltage-dividing resistor R while supplying power to the processor, then flows to the second electrode 30 through the metal device 10, and finally is grounded to form a closed loop. At this time, since the first electrode 20 and/or the second electrode 30 are not separated from the metal device 10, the voltage and/or the resistance between the first electrode 20 and the second electrode 30 is substantially maintained at a small value as the metal electrode is consumed.
When the first electrode 20 and/or the second electrode 30 are separated from the metal device 10, the first electrode 20 and the second electrode 30 need to be connected through water, and at this time, the current output by the power supply flows into the first electrode 20 through the voltage-dividing resistor R, then flows to the second electrode 30 through water, and finally is grounded to form a closed loop. At this time, since the resistivity of water is much higher than that of the metal device 10, the voltage value and/or the resistance value between the first electrode 20 and the second electrode 30 acquired by the processor becomes large sharply, thereby realizing the consumption detection of the metal device 10.
Referring to fig. 4, in one embodiment, the processing device 40 includes a voltage-dividing resistor R and a processor (not shown), the first electrode 20 is connected to a power source terminal of the processor, the second electrode 30 is connected to a sampling terminal of the processor and a first terminal of the voltage-dividing resistor R, a second terminal of the voltage-dividing resistor R is grounded, the power source terminal of the processor is used for connecting a power source, and a ground terminal of the processor is grounded.
Specifically, in this embodiment, the sampling voltage is a voltage across the voltage-dividing resistance R. The processing device 40 has a voltage sampling function, and forms a closed loop by connecting the first electrode 20 and the second electrode 30, and detects a voltage value between the first electrode 20 and the second electrode 30 in real time by using a processor. What is different from the above, when the first electrode 20 and the second electrode 30 are connected through the metal device 10, the current output by the power supply flows to the first electrode 20 while supplying power to the processor, then flows to the second electrode 30 through the metal device 10, and finally is grounded through the voltage dividing resistor R to form a closed loop. At this time, the voltage collected by the sampling end of the processor is the voltage of the divider resistor R, and the voltage value collected by the processor is basically maintained at a larger voltage value because the resistivity of the metal device 10 is smaller.
When the first electrode 20 and/or the second electrode 30 are separated from the metal device 10, the first electrode 20 and the second electrode 30 need to be connected through water, and at this time, the current output by the power supply flows into the water after passing through the first electrode 20, then flows to the voltage dividing resistor R through the second electrode 30, and finally is grounded to form a closed loop. At this time, since the resistivity of water is much higher than that of the metal device 10, the voltage value collected by the processor will be sharply decreased, that is, the voltage value and/or the resistance value between the first electrode 20 and the second electrode 30 will be sharply increased. The scheme of this embodiment is opposite to the above scheme, and the consumption state of the metal device 10 is analyzed by collecting the voltage at the two ends of the voltage-dividing resistor R, so that the voltage at the two ends of the voltage-dividing resistor R becomes smaller, the voltage between the corresponding first electrode 20 and the corresponding second electrode 30 becomes larger, and the two electrodes can be equivalently replaced.
Referring to fig. 2, in one embodiment, the metal consumption detecting assembly further includes an insulating core 60, the metal device 10 is disposed around the insulating core 60, and the first electrode 20 and the second electrode 30 are respectively located at two opposite sides of the insulating core 60.
Specifically, in the solution of this embodiment, the metal device 10 is designed around an insulating mandrel 60, and the first electrode 20 and the second electrode 30 are respectively disposed on two opposite sides of the insulating mandrel 60, so that the first electrode 20 and the second electrode 30 are not directly contacted with each other through the insulating mandrel 60, and the first electrode 20 and the second electrode 30 are also disposed inside the metal device 10, thereby achieving consumption detection of the metal device 10 and effectively improving the service life of the metal device 10. Further, in one embodiment, the first electrode 20 and the second electrode 30 extend along the direction of the insulating mandrel 60, so that more contacts are provided between the electrodes 20 and the metal device 10, and the consumption detection of the metal device 10 is more facilitated.
It should be noted that the specific shape and type of the first electrode 20 and the second electrode 30 are not exclusive, as long as the conductive function can be achieved and the device does not suffer from much corrosion due to the increase of the use time. For example, in one embodiment, first electrode 20 and second electrode 30 are both metal electrode pads, and the oxidation properties of first electrode 20 and second electrode 30 are weaker than the oxidation properties of metal device 10.
Specifically, in the present embodiment, the first electrode 20 and the second electrode 30 are provided in the form of electrode plates, and are made of conductive metal materials with oxidation property weaker than that of the metal device 10, so that in the using process, since the metal device 10 reacts with the free ions in water, the first electrode 20 and the second electrode 30 can be effectively prevented from being corroded. Meanwhile, the structural form of the electrode plate is adopted, so that the metal device 10 can be suitable for the condition that the metal device 10 is long, and the electrode plate of the type can be deeply inserted into the metal device 10, so that the consumption detection operation of the metal device 10 is realized.
Referring to fig. 5, in one embodiment, the metal consumption detecting assembly further includes an information prompting device 70, and the information prompting device 70 is connected to the processing device 40.
Specifically, the scheme of the embodiment is provided with the information prompting device 70 and connected with the processing device 40, and when the processing device 40 detects that the metal component 10 is consumed to a certain extent, the information prompting device 70 can be controlled to operate by outputting a corresponding signal, so that the state of the metal component 10 is informed to a user, and the user can conveniently replace the metal component 10 in time.
It will be appreciated that the particular type of information prompting device 70 is not exclusive, as long as it is convenient for the user to know the state of the metal component 10 as depleted to a certain extent. For example, in one embodiment, the information prompting device 70 is an audible alarm and/or a light alarm. That is, when the metal device 10 is consumed to a certain extent and the sampling voltage of the processing device 40 changes rapidly, the processing device 40 outputs a prompt signal to the audible alarm and/or the optical alarm to control the audible alarm and/or the luminous early warning so as to remind the user of replacing the metal device 10.
It should be noted that the specific type of metal device 10 is not exclusive, as long as it is sufficiently active to oxidize, preferentially react with free ions in water, such as water tanks and heating rods (when the metal consumption detecting assembly is used in an electric water heater). In one embodiment, since the water tank, the heating rod, and the like are generally made of metal iron, a magnesium rod may be used as the metal device 10 for the cathodic protection operation of the water tank and the like.
In an embodiment, when obtaining the consumption state information of the metal device 10 according to the sampling voltage and/or the sampling resistance, the processing device 40 specifically includes: acquiring sampling voltage and/or sampling resistance; based on the sampling voltage and/or the sampling resistance, consumption state information of the metal device 10 is obtained.
Further, in one embodiment, obtaining consumption state information of the metal device 10 according to the sampling voltage and/or the sampling resistance comprises: judging whether the sampling voltage reaches a preset voltage threshold value or not; and when the sampling voltage reaches a preset voltage threshold value, obtaining the state information that the metal device 10 consumes to enable the first electrode and/or the second electrode to fall off from the metal device. And/or judging whether the sampling resistance reaches a preset resistance threshold value; and when the sampling resistance reaches a preset resistance threshold value, obtaining the state information that the metal device 10 consumes to enable the first electrode and/or the second electrode to fall off from the metal device.
Specifically, the preset voltage threshold is a sampling voltage when the metal device 10 is consumed so that the first electrode 20 and/or the second electrode 30 is separated from the metal device 10, so that the first electrode 20 and the second electrode 30 are connected through water in the water tank. The preset resistance threshold is a sampling resistance when the metal device 10 is consumed, so that the first electrode 20 and/or the second electrode 30 is separated from the metal device 10, and the first electrode 20 and the second electrode 30 are connected through water in the water tank. It will be appreciated that the first electrode 20 is connected to the second electrode 30 in a different manner than the first electrode 20, which is a water-to-metal connection, and the second electrode is connected only by water, as both electrodes are disconnected from the metal device 10, as only one of the electrodes is disconnected from the metal device 10, while the other electrode remains connected to the metal device. Therefore, the specific sizes of the preset voltage threshold and the preset resistance threshold may be different according to the detachment of the first electrode 20 and the second electrode 30 from the metal device 10, and may be selected differently according to actual situations.
In one embodiment, when the metal device 10 is consumed to separate the first electrode 20 and/or the second electrode 30 from the metal device 10, the value corresponding to the sampling voltage or the sampling resistance at this time may be the preset voltage threshold or the preset resistance threshold through experimental tests. In the actual detection process, the processing device 40 only needs to obtain the sampling voltage or the sampling resistance in real time, and compare and analyze the sampling voltage or the sampling resistance with the corresponding preset voltage threshold or preset resistance threshold, so as to realize the consumption detection of the metal device 10.
Taking the sampling voltage as an example, when the sampling voltage reaches the preset voltage threshold, it indicates that the metal device 10 is consumed to separate the first electrode 20 and/or the second electrode 30 from the metal device 10, and the current between the first electrode 20 and the second electrode 30 needs to be transmitted through water, at this time, state information that the first electrode 20 and/or the second electrode 30 is consumed by the metal device 10 to fall off from the metal device 10 is obtained. And when the sampling voltage does not reach the preset voltage threshold, returning to the step of acquiring the sampling voltage and/or the sampling resistor so as to realize real-time acquisition and analysis of the sampling voltage, and ensuring that the metal device 10 can be detected in time when the first electrode 20 and the second electrode 30 are connected through water in the water tank due to consumption. The analysis mode of the sampling resistor is similar to that of the sampling voltage, and the description is omitted here.
It should be noted that the specific form of the sampling voltage is not exclusive, and may be the voltage of the voltage dividing resistor R, or the voltage between the first electrode 20 and the second electrode 30, which may be selected differently according to actual requirements. Different types of sampling voltages are provided, and different specific connection modes between the first electrode 20, the second electrode 30 and the voltage dividing resistor R are provided, specifically, as shown in the above embodiment, the appendage 3 and the attached drawing 4, corresponding preset voltage thresholds are different, but the overall implementation principle is similar, and the consumption detection of the metal device 10 is realized according to the drastic change of the sampling voltage by using the concept of voltage dividing sampling and combining the characteristic that the resistivity of water is much larger than that of the metal device 10.
Likewise, the specific form of the preset voltage threshold is not unique, and when the sampling voltage is the voltage of the voltage-dividing resistor 10, the corresponding preset voltage threshold is the voltage value of the voltage-dividing resistor when the metal device 10 consumes the voltage so that the first electrode 20 and the second electrode 30 need to be connected through water in the water tank; when the sampling voltage is the voltage between the first electrode 20 and the second electrode 30, the corresponding preset voltage threshold is the voltage value between the first electrode 20 and the second electrode 30 when the metal device 10 is consumed so that the first electrode 20 and the second electrode 30 need to be connected through water in the water tank.
In the metal consumption detecting assembly, the metal device 10 is provided with the first electrode 20 and the second electrode 30, the first electrode 20 and the second electrode 30 are connected through the metal device 10, and both the first electrode 20 and the second electrode 30 are connected to the processing device 40. As metal device 10 is consumed, metal device 10 between first electrode 20 and second electrode 30 is gradually decreased, and even first electrode 20 and/or second electrode 30 may eventually fall off metal device 10. In the process of consuming the metal device 10, the sampling voltage and/or the sampling resistance acquired by the processing device 40 through the first electrode 20 and the second electrode 30 will change accordingly, and the processing device 40 obtains the consumption state information of the metal device 10 according to the voltage and/or resistance change state. Through the scheme, when the metal device 10 is consumed to a certain degree, the processing device 40 can detect the consumption in time, so that a user can know the consumption state of the metal device 10 conveniently.
An electric heating device comprises the metal consumption detection assembly.
In particular, the amount of the solvent to be used,
as shown in the above embodiments and the accompanying drawings, the first electrode 20 and the second electrode 30 are both disposed on the metal device 10, and when the first electrode 20 and the second electrode 30 are respectively connected to the circuit, the first electrode 20 and the second electrode 30 will be communicated through the metal device 10. When the metal device 10 is sufficient, neither the first electrode 20 nor the second electrode 30 is separated from the metal device 10, and the current between the first electrode 20 and the second electrode 30 is transmitted through the metal device 10. When the metal device 10 is consumed to a certain extent, the first electrode 20 and/or the second electrode 30 will be separated from the metal device 10, so that the first electrode 20 and the second electrode 30 cannot be connected through the metal device 10. The processing device 40 samples the voltage and/or the resistance through the first electrode 20 and the second electrode 30 connected thereto to obtain a corresponding sampling voltage and/or a corresponding sampling resistance, and the sampling voltage and/or the sampling resistance also change with the consumption of the metal device 10, so that the consumption detection operation of the metal device 10 can be realized according to the change.
The metal device 10 is disposed in an aqueous solution containing impurities for explanation, and when the first electrode 20 and/or the second electrode 30 is separated from the metal device 10, the first electrode 20 and the second electrode 30 need to be connected through water, and at this time, the current output by the power supply flows into water after passing through the first electrode 20, then flows into the voltage-dividing resistor R through the second electrode 30, and finally is grounded to form a closed loop. At this time, since the resistivity of water is much higher than that of the metal device 10, the voltage value collected by the processor will be sharply decreased, that is, the voltage value and/or the resistance value between the first electrode 20 and the second electrode 30 will be sharply increased. The scheme of this embodiment is opposite to the above scheme, and the consumption state of the metal device 10 is analyzed by collecting the voltage at the two ends of the voltage-dividing resistor R, so that the voltage at the two ends of the voltage-dividing resistor R becomes smaller, the voltage between the corresponding first electrode 20 and the corresponding second electrode 30 becomes larger, and the two electrodes can be equivalently replaced. After the processing device 40 detects this change, consumption state information of the metal device 10 is obtained.
It is understood that the type of the electric heating device is not exclusive, and any device can be used as long as the electric heating device is used for converting electric energy into heat energy to realize water heating. For example, in one embodiment, the electrical heating device is an electric water heater. By arranging the metal device 10 in the water tank of the electric water heater, the water tank can be protected from being corroded, an electric heating rod can be prevented from being corroded, the service life of the electric water heater is effectively prolonged, and meanwhile, the metal device 10 is timely replaced when being consumed to a certain degree.
According to the electric heating equipment, the metal device 10 is arranged in the water tank of the electric heating equipment, and the metal device 10 preferentially reacts with free ions in water in the water tank, so that cathode protection is realized on the water tank. Meanwhile, a first electrode 20 and a second electrode 30 are further disposed on the metal device 10, the first electrode 20 and the second electrode 30 are connected through the metal device 10, and both the first electrode 20 and the second electrode 30 are connected to the processing device 40. As the metal device 10 reacts with the free ions in the water, the metal device 10 will be gradually consumed, and when the metal device 10 is consumed to a certain extent, the voltage and/or resistance value between the first electrode 20 and the second electrode 30 will be changed. Finally, the processing device 40 obtains the consumption state information of the metal device 10 according to the voltage and/or resistance change state. Through the scheme, when the metal device 10 for performing cathode protection on the water tank is consumed to a certain degree, the processing device 40 can detect the consumption state in time, so that a user can know the consumption state of the metal device 10 conveniently.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A metal consumption detection assembly, comprising:
a metal device;
a first electrode disposed on the metal device;
the second electrode is arranged on the metal device and is not in contact with the first electrode;
and the first electrode and the second electrode are respectively connected with the processing device, and the processing device is used for obtaining consumption state information of the metal device according to the sampling voltage and/or the sampling resistance.
2. The metal consumption detection assembly of claim 1, wherein the metal device is disposed in a solution containing an impurity, the metal device having an oxidation property that is stronger than an oxidation property of the impurity.
3. The metal consumption detecting assembly according to claim 1, wherein the processing device comprises a voltage dividing resistor and a processor, a first end of the voltage dividing resistor is connected to a power supply terminal of the processor, a second end of the voltage dividing resistor is connected to a sampling terminal of the processor and the first electrode, the second electrode is connected to a ground terminal of the processor, the power supply terminal of the processor is used for connecting a power supply, and the ground terminal of the processor is grounded.
4. The metal consumption detecting assembly according to claim 1, wherein the processing device comprises a voltage dividing resistor and a processor, the first electrode is connected to a power supply terminal of the processor, the second electrode is connected to a sampling terminal of the processor and a first terminal of the voltage dividing resistor, a second terminal of the voltage dividing resistor is grounded, the power supply terminal of the processor is used for connecting a power supply, and a ground terminal of the processor is grounded.
5. The metal consumption detection assembly of claim 1, further comprising an insulating mandrel around which the metal device is disposed, the first and second electrodes being located on opposite sides of the insulating mandrel.
6. The metal consumption detecting assembly according to claim 1, wherein the first electrode and the second electrode are both metal electrode pads, and an oxidation property of the first electrode and the second electrode is weaker than an oxidation property of the metal device.
7. The metal consumption detection assembly of claim 1, further comprising an information prompting device, the information prompting device being coupled to the processing device.
8. The metal consumption detection assembly of any one of claims 1 to 7, wherein the metal device is a magnesium rod.
9. An electrical heating apparatus comprising a metal consumption detection assembly as claimed in any one of claims 1 to 8.
10. An electric heating device according to claim 9, characterized in that the electric heating device is an electric water heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121131000.7U CN215179539U (en) | 2021-05-25 | 2021-05-25 | Metal consumption detection assembly and electric heating equipment |
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