CN215176070U - Protection device detecting system and electric heating equipment - Google Patents
Protection device detecting system and electric heating equipment Download PDFInfo
- Publication number
- CN215176070U CN215176070U CN202121131019.1U CN202121131019U CN215176070U CN 215176070 U CN215176070 U CN 215176070U CN 202121131019 U CN202121131019 U CN 202121131019U CN 215176070 U CN215176070 U CN 215176070U
- Authority
- CN
- China
- Prior art keywords
- detection circuit
- protection device
- electrode
- controller
- terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Control Of Resistance Heating (AREA)
Abstract
The application relates to a protection device detection system and electric heating equipment, wherein a sealing cavity is arranged in a protection device, a first electrode and a second electrode which are mutually independent are arranged in the sealing cavity, and the first electrode and the second electrode are respectively connected to a detection circuit. Under the condition that the protection device is not consumed so that water of the inner container flows into the sealed cavity, the sealed cavity inside the protection device is in a sealed state, the first end and the second end of the detection circuit are not communicated at the moment, and the detection circuit feeds back a first output signal to the controller. When the protection device is consumed to a certain degree, water in the inner container flows into the sealed cavity, the first electrode is communicated with the second electrode, the first end of the detection circuit is connected with the second end, and the detection circuit feeds back a second output signal to the controller. By the scheme, the consumption state of the protection device can be analyzed and judged according to different signals fed back by the detection circuit.
Description
Technical Field
The application relates to the technical field of electric heating, in particular to a protection device detection system 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. The electric water heater is a water heater using electricity as energy source to heat, generally utilizes an electric heating pipe, an electric heating rod, a glass tube or a plastic tube to heat, and is widely applied to daily life because the electric water heater has the advantages of no need of being installed in different rooms, no harmful gas generation, convenient temperature adjustment and the like compared with a gas water heater and a solar water heater.
Since tap water generally contains a large amount of free metal ions, the metal ions deprive free electrons of the heating rod (generally, iron metal) without external interference, so that the heating rod is corroded, and thus the heating rod is easily rusted and damaged. Based on this, a metal protection device with oxidation property more active than that of the heating rod is often put into the inner container of the electric water heater, and based on the principle of cathode protection, the metal protection device can preferentially react with free metal ions, so that the heating rod is protected from being corroded.
However, the metal protection device is a consumable product, and as the service life of the electric water heater increases, the metal protection device is gradually consumed, so that the metal protection device needs to be replaced regularly. Because the inner container of the electric water heater is in a closed state, a user cannot directly judge the consumption state of the metal protection device.
SUMMERY OF THE UTILITY MODEL
Therefore, it is necessary to provide a protection device detection system and an electric water heater in order to solve the problem that a user cannot directly judge whether a metal protection device is consumed.
A protective device detection system comprising: the protective device is fixedly arranged on the inner container of the electric heating equipment and used for protecting a heating rod of the electric heating equipment from being corroded, and a sealing cavity is formed in the protective device; the first electrode is arranged in the sealed cavity of the protection device; the second electrode is arranged in the sealed cavity of the protection device; a first end of the detection circuit is connected with the first electrode, and a second end of the detection circuit is connected with the second electrode; when the protection device is consumed to enable water in the inner container to flow into the sealed cavity, the first electrode is communicated with the second electrode, so that the first end of the detection circuit is connected with the second end of the detection circuit; the controller is connected with the input end of the detection circuit and the output end of the detection circuit, and is used for inputting a detection signal to the detection circuit and acquiring a first output signal of the detection circuit when the first end of the detection circuit is not connected with the second end of the detection circuit; and when the first end of the detection circuit is connected with the second end of the detection circuit, acquiring a second output signal of the detection circuit.
In one embodiment, the detection circuit includes a first terminal, a second terminal, a switch device, a first resistor, a second resistor, and a first capacitor, the first terminal is connected to the first electrode, the second terminal is connected to the second electrode, a first end of the first resistor is connected to the controller, a second end of the first resistor is connected to the control end of the switch device, an input end of the switch device is connected to the power supply, an output end of the switch device is connected to a first end of the second resistor, a second end of the second resistor is connected to the first end of the first capacitor and the controller, a second end of the first capacitor is connected to the second terminal, and the first terminal is grounded.
In one embodiment, the detection circuit further includes a third resistor, and the second end of the second resistor is connected to the first end of the first capacitor and connected to the controller through the third resistor.
In one embodiment, the detection circuit further comprises a second capacitor, a first end of the second capacitor is connected to the common terminal of the third resistor and the controller, and a second end of the second capacitor is grounded.
In one embodiment, the protection device is cylindrical, and the sealed cavity is arranged coaxially with the protection device.
In one embodiment, the protective device is a magnesium rod.
In one embodiment, the protection device detection system further comprises an information prompting device, and the information prompting device is connected with the controller.
In one embodiment, the information prompting device is an audible alarm and/or a signal indicator light.
In one embodiment, the controller is a single chip microcomputer.
An electric heating device comprises the protection device detection system.
According to the protection device detection system and the electric heating equipment, the sealing cavity is formed in the protection device for protecting the heating rod of the electric heating equipment, the first electrode and the second electrode which are independent of each other are arranged in the sealing cavity, and the first electrode and the second electrode are respectively connected to the detection circuit. Under the condition that the protection device is not consumed so that water of the inner container flows into the sealed cavity, the sealed cavity inside the protection device is in a sealed state, the first end and the second end of the detection circuit are not communicated at the moment, and the detection circuit feeds back a first output signal to the controller according to a detection signal input by the controller. When the protection device is consumed to a certain degree, water in the inner container flows into the sealed cavity, the first electrode is communicated with the second electrode, the first end of the detection circuit is connected with the second end, and the detection circuit feeds back a second output signal to the controller according to a detection signal input by the controller. By the scheme, the consumption state of the protection device can be analyzed and judged according to different signals fed back by the detection circuit.
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 protection device detection system according to an embodiment;
FIG. 2 is a schematic diagram of an embodiment of a detection circuit;
FIG. 3 is a schematic diagram of another embodiment of a detection circuit;
FIG. 4 is a schematic diagram of a protection device in one embodiment;
FIG. 5 is a schematic view of a protection device according to another embodiment;
FIG. 6 is a schematic diagram of a protection device detection system according to another embodiment;
fig. 7 is a schematic structural diagram of an electric heating apparatus in an 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 protection device detection system includes: the protection device 10 is fixedly arranged on an inner container of the electric heating equipment and used for protecting a heating rod of the electric heating equipment from being corroded, and a sealing cavity is formed in the protection device; a first electrode 20 disposed in the sealed cavity of the protection device 10; a second electrode 30 disposed in the sealed cavity of the protection device 10; a detection circuit 40, wherein a first end of the detection circuit 40 is connected with the first electrode 20, and a second end of the detection circuit 40 is connected with the second electrode 30; when the protection device 10 is consumed to enable water in the inner container to flow into the sealed cavity, the first electrode 20 is communicated with the second electrode 30, so that the first end of the detection circuit 40 is connected with the second end of the detection circuit 40; a controller 50, connected to the input terminal of the detection circuit 40 and the output terminal of the detection circuit 40, for inputting a detection signal to the detection circuit 40, and acquiring a first output signal of the detection circuit 40 when the first terminal of the detection circuit 40 is not connected to the second terminal of the detection circuit 40; when the first terminal of the detection circuit 40 is connected to the second terminal of the detection circuit 40, a second output signal of the detection circuit 40 is acquired.
Specifically, the protection device 10 is a device that uses the principle of cathode protection (i.e. the principle of primary battery) in the electric heating device to react with the free metal ions in the water in preference to the heating rod in the electric heating device. Through the setting of protection device 10, under the condition that protection device 10 exists, the heating rod basically can not react with free metal ion, and then can effectively protect the heating rod not corroded, effectively improves electrical heating equipment's life. It will be appreciated that the manner in which the protective device 10 is arranged on the inner container is not exclusive and in one embodiment the protective device 10 may be fixedly arranged on the inner wall of the inner container of the electric heating apparatus by means of a screw fastening.
Meanwhile, the protection device 10 of the present embodiment is further provided with a sealed cavity, when the protection device 10 is not gradually consumed due to corrosion, the sealed cavity will be always in a sealed state, and in this state, the first electrode 20 and the second electrode 30 arranged in the sealed cavity will always be electrically isolated, so that the first port connected to the first electrode 20 and the second port connected to the second electrode 30 are also in a disconnected state. When the controller 50 sends the detection signal to the detection circuit 40, since the first port and the second port of the detection circuit 40 are not connected, the output port of the detection circuit 40 will obtain the first output signal and feed back the first output signal to the controller 50.
As the service life of the electric heating device increases, the protection device 10 will be gradually consumed, and when the protection device 10 is consumed to a certain extent (which may be the depletion or the near depletion of the protection device 10), the sealed cavity opened in the protection device 10 will no longer be in a sealed state. At this time, water in the inner container of the electric heating device flows into the sealed cavity, and the water is rich in metal ions of the type corresponding to the protection device 10, so that the first electrode 20 and the second electrode 30 are communicated, and the first end and the second end of the detection circuit 40 are connected. At this time, the circuit structure of the detection circuit 40 changes, which causes a change in the signal fed back to the controller 50 from the output terminal of the detection circuit 40, that is, the signal fed back to the controller 50 is the second output signal. Based on this, the controller 50 will obtain the detection result of the consumption state of the protection device 10, and the user can intuitively obtain that the protection device 10 has been consumed to a certain extent only by informing the user of the detection result by the controller 50, which is beneficial for the user to replace the protection device 10 in time.
It can be understood that, in this embodiment, the fact that the protection device 10 is consumed so that water in the inner container flows into the sealed cavity means that a certain position in the wall surface of the sealed cavity formed by the protection device 10 is consumed, so that the sealed cavity is no longer in a sealed state, but the protection device 10 is not necessarily completely consumed, and may be a side wall or a top surface of the sealed cavity, and the like, which may also be different according to an opening position of the sealed cavity in an actual scheme. For example, when the protection device 10 is cylindrical, the seal cavity is coaxial with the protection device 10, and is located at the bottom of the protection device 10, in the process of uniform reduction of the protection device 10, the side walls of the seal cavity will be consumed at the same time theoretically, so that water in the liner flows into the seal cavity; if the height of the protection device is large enough, the part of the protection device 10 on the top of the sealed cavity will have some residue.
It should be noted that the specific type of the detection circuit 40 is not exclusive, and in one embodiment, referring to fig. 2, the detection circuit 40 includes a first terminal 41, a second terminal 42, a switching device Q, a first resistor R1, a second resistor R2 and a first capacitor C1, the first terminal 41 is connected to the first electrode 20, the second terminal 42 is connected to the second electrode 30, a first end of the first resistor R1 is connected to the controller 50, a second end of the first resistor R1 is connected to a control end of the switching device Q, an input end of the switching device Q is connected to the power supply, an output end of the switching device Q is connected to a first end of the second resistor R2, a second end of the second resistor R2 is connected to a first end of the first capacitor C1 and the controller 50, a second end of the first capacitor C1 is connected to the second terminal 42, and the first terminal 41 is grounded.
Specifically, in the present embodiment, the detection circuit 40 includes a first resistor R1, a second resistor R2, a first capacitor C1, and the like, and when the sealed cavity of the protection device 10 is in a sealed state, the first terminal 41 and the second terminal 42 of the detection circuit 40 are in an open state, at this time, the first capacitor C1 is not connected to the detection circuit 40, and a signal output from the second terminal of the second resistor R2 is directly fed back to the controller 50 to obtain a first output signal. When the protection device 10 is consumed to open the sealed cavity, the first terminal 41 and the second terminal 42 are turned on, the first capacitor C1 of the detection circuit 40 is connected, the signal output from the second terminal of the second resistor R2 of the detection circuit 40 flows to the first capacitor C1 and the controller 50, and the feedback signal obtained by the controller 50 is the second output signal.
It should be noted that the type of the detection signal input by the controller 50 to the detection circuit 40 is not exclusive, and in one embodiment, the detection signal input by the controller 50 to the detection circuit 40 is a Pulse Width Modulation (PWM) signal. When the first terminal 41 and the second terminal 42 are not turned on, the controller 50 outputs the pwm signal at a fixed frequency to the first terminal of the first resistor R1, flows into the control terminal of the switching device Q through the second terminal of the first resistor R1, and finally detects a signal having a frequency identical to that of the input pwm signal at the second terminal of the second resistor R2, that is, a first output signal, by controlling the on/off of the switching device Q. When the first terminal 41 and the second terminal 42 are turned on due to consumption of the protection device 10, the controller 50 outputs the pwm signal to the first end of the first resistor R1 at a fixed frequency, and the pwm signal flows into the control end of the switching device Q through the second end of the first resistor R1, and after the switching device Q is turned on and off, the frequency of the signal transmitted to the controller 50 from the second end of the second resistor R2 will be changed due to the presence of the first capacitor C1, that is, a second output signal with a frequency different from the frequency of the pwm signal is obtained at this time.
Referring to fig. 3, in an embodiment, the detection circuit 40 further includes a third resistor R3, and the second terminal of the second resistor R2 is connected to the first terminal of the first capacitor C1 and is connected to the controller 50 through the third resistor R3.
Specifically, in this embodiment, a third resistor R3 is further disposed between the second end of the second resistor R2 and the controller 50, and the operational reliability of the detection circuit 40 can be effectively ensured through the current limiting effect of the third resistor R3.
Referring to fig. 3, in an embodiment, the detection circuit 40 further includes a second capacitor C2, a first terminal of the second capacitor C2 is connected to the common terminal of the third resistor R3 and the controller 50, and a second terminal of the second capacitor C2 is grounded.
Specifically, in this embodiment, a second capacitor C2 is further connected between the third resistor R3 for current limiting and the controller 50, and the second capacitor C2 can filter out interference components of the signal flowing out of the third resistor R3, thereby improving the reliability of the signal output by the detection circuit 40.
It is understood that the specific type of the protection device 10 and the manner of opening the sealed cavity in the protection device 10 are not exclusive, and referring to fig. 4, in one embodiment, the protection device 10 is cylindrical and the sealed cavity is disposed coaxially with the protection device 10.
Specifically, in the present embodiment, the seal cavity is coaxially disposed in the cylindrical protection device 10, that is, the seal cavity is also formed in a cylindrical shape similar to the protection device 10, so that the service life of the protection device 10 can be longer. Because the wall thickness of the protection device 10 is uniformly reduced inwards in the using process, the wall thickness around the protection device 10 is uniform due to the coaxial arrangement, and the service life of the protection device 10 is shortened due to the fact that a part of the wall thickness is too small.
Further, in an embodiment, please refer to fig. 5 in combination, in order to further improve the service life of the protection device 10, and to avoid that the protection device 10 is determined to consume to a certain extent when a certain portion of the wall thickness remains too much in the use process of the protection device 10, and to remind the user to replace the protection device 10, the wall thickness in the transverse direction (the bottom surface diameter direction) of the protection device 10 and the wall thickness in the vertical direction (the height direction) of the protection device 10 may be designed to be as equal as possible, and through the design of the scheme, it may be ensured that the wall thicknesses in all directions of the protection device 10 are almost consumed at the same time when the protection device 10 is uniformly consumed in the transverse direction and the longitudinal direction.
In another embodiment, the protection device 10 may be designed into other shapes, such as a rectangular parallelepiped, a sphere, etc., as long as a sealed cavity is opened inside the protection device to place the first electrode 20 and the second electrode 30, and the sealed cavity is opened to fill water when the protection device 10 is consumed to a certain extent, so that the first electrode 20 is communicated with the second electrode 30.
Likewise, the specific type of the protection device 10 is not exclusive, and any device may be used as long as the oxidation property is more active than that of the heating rod of the electric heating apparatus, and the specific type may be selected in combination with the type of the heating rod of the electric heating apparatus in an actual use scenario. For example, in one embodiment, the protection device 10 is a magnesium rod.
Referring to fig. 6, in one embodiment, the protection device detection system further includes an information prompting device 60, and the information prompting device 60 is connected to the controller 50.
Specifically, in order to facilitate the user to know the use state of the protection device 10 in time, the controller 50 is further connected with an information prompting device 60, after the controller 50 acquires the signal output by the detection circuit 40, the detection result of whether the protection device 10 is consumed to a certain extent (the protection device 10 is consumed completely to enable the water of the inner container to flow into the sealed cavity, or the protection device 10 is consumed completely to enable the water of the inner container to flow into the sealed cavity, specifically, the shape of the protection device 10 is different) is obtained according to the signal analysis, and the user is notified through the information prompting device 60. It is understood that the controller 50 may always send the information prompting signal to the information prompting device 60, and control the information prompting device 60 to notify the user of the consumption detection result of the protection device 10 in real time according to the information prompting signal, and the prompting signal output by the information prompting device 60 is different when the protection device 10 is consumed to a certain extent and is not consumed to a certain extent, so as to facilitate the user to distinguish. In another embodiment, it is also possible that the controller 50 only delivers an information prompting signal to the information prompting device 60 when the controller 50 acquires the second output signal as a result of the consumption of the protection device 10 to a certain extent, and the information prompting device 60 is controlled to inform the user of the result.
It should be noted that the type of information prompting device 60 is not exclusive, and in one embodiment, the information prompting device 60 is an audible alarm and/or a signal light. Specifically, the audible alarm or the signal indicator is disposed on the outer wall of the housing of the electric heating apparatus, so that the user can obtain the detection result of the consumption state of the protection device 10 according to the information prompt device 60.
The particular type of controller 50 is not exclusive and in one embodiment, the controller 50 is a single chip.
Specifically, a Single-Chip Microcomputer (Single-Chip Microcomputer) is an integrated circuit Chip, and is a small and perfect Microcomputer system formed by integrating functions (possibly including a display driving circuit, a pulse width modulation circuit, an analog multiplexer, an a/D converter and other circuits) of a Central Processing Unit (CPU), a Random Access Memory (RAM), a Read Only Memory (ROM), various input/output (I/O) ports, an interrupt system, a timer/counter and the like with data processing capability on a silicon Chip by adopting a very large scale integrated circuit technology. The single chip microcomputer adopted as the controller 50 has the advantages of strong control capability, small volume, low power consumption and the like. In other embodiments, other types of devices may be used as the controller 50, such as an MCU (micro controller Unit).
In the protection device detection system, a sealed cavity is formed in the protection device 10 for protecting the heating rod of the electric heating device, and the first electrode 20 and the second electrode 30 which are independent of each other are arranged in the sealed cavity, and the first electrode 20 and the second electrode 30 are respectively connected to the detection circuit 40. Under the condition that the protection device 10 is not consumed so that water in the inner container flows into the sealed cavity, the sealed cavity inside the protection device 10 is in a sealed state, at this time, the first end and the second end of the detection circuit 40 are not communicated, and the detection circuit 40 feeds back a first output signal to the controller 50 according to a detection signal input by the controller 50. When the protection device 10 is consumed to a certain extent, the water in the inner container flows into the sealed cavity, so that the first electrode 20 is communicated with the second electrode 30, the first end and the second end of the detection circuit 40 are connected, and at the moment, the detection circuit 40 feeds back a second output signal to the controller 50 according to the detection signal input by the controller 50. By the above scheme, according to the difference of the signals fed back by the detection circuit 40, the consumption state of the protection device 10 can be analyzed and judged.
An electric heating device comprises the protection device detection system.
Specifically, as shown in the above embodiments and the accompanying drawings, the protection device 10 is a device that uses the principle of cathode protection (i.e. the principle of galvanic cell) in an electric heating device to react with free metal ions in water in preference to a heating rod in the electric heating device. Through the setting of protection device 10, under the condition that protection device 10 exists, the heating rod basically can not react with free metal ion, and then can effectively protect the heating rod not corroded, effectively improves electrical heating equipment's life. It will be appreciated that the manner in which the protective device 10 is arranged on the inner container is not exclusive and in one embodiment the protective device 10 may be fixedly arranged on the inner wall of the inner container of the electric heating apparatus by means of a screw fastening.
Meanwhile, the protection device 10 of the present embodiment is further provided with a sealed cavity, when the protection device 10 is not gradually consumed due to corrosion, the sealed cavity will be always in a sealed state, and in this state, the first electrode 20 and the second electrode 30 arranged in the sealed cavity will always be electrically isolated, so that the first port connected to the first electrode 20 and the second port connected to the second electrode 30 are also in a disconnected state. When the controller 50 sends the detection signal to the detection circuit 40, since the first port and the second port of the detection circuit 40 are not connected, the output port of the detection circuit 40 will obtain the first output signal and feed back the first output signal to the controller 50.
As the service life of the electric heating device increases, the protection device 10 will be gradually consumed, and when the protection device 10 is consumed to a certain extent, the sealed cavity opened in the protection device 10 will not be in a sealed state. At this time, water in the inner container of the electric heating device flows into the sealed cavity, and the water is rich in metal ions of the type corresponding to the protection device 10, so that the first electrode 20 and the second electrode 30 are communicated, and the first end and the second end of the detection circuit 40 are connected. At this time, the circuit structure of the detection circuit 40 changes, which causes a change in the signal fed back to the controller 50 from the output terminal of the detection circuit 40, that is, the signal fed back to the controller 50 is the second output signal. Based on this, the controller 50 will obtain the detection result of the consumption state of the protection device 10, and the user can intuitively obtain that the protection device 10 has been consumed to a certain extent only by informing the user of the detection result by the controller 50, which is beneficial for the user to replace the protection device 10 in time.
It is to be understood that the specific type of the electric heating apparatus is not exclusive, and any apparatus may be used as long as it can heat water by converting electric energy into heat energy using the heating device. For example, in one more detailed embodiment, the electrical heating device is an electric water heater.
Further, in an embodiment, referring to fig. 7, the electric heating apparatus further includes a housing 71, a heat insulating layer 72, a water inlet 73, a filter screen 74, an inner container 78, a heating rod 75, a water outlet 76, a temperature detector 77, and the like. The shell 71 is used for protecting and fixing the electric heating equipment, the heat-insulating layer 72 is used for filling heat-insulating materials, the loss of the flow of the water heater is reduced, the water inlet 73 is connected with a tap water pipe and supplies water to the electric heating equipment, the filter screen 74 is used for filtering impurities in water in the external tap water pipe and storing water, the inner container 78 is coated with heat-insulating materials, the heating rod is used for heating water in the inner container 78, the water outlet 76 is used for supplying water to a user, the temperature detector 77 is connected with the controller 50 and used for detecting the temperature of the water in the inner container 78, and therefore whether the water temperature of the electric heating equipment reaches the water temperature set by the user or not is judged, whether the heating rod 75 of the electric heating equipment normally works or not is judged according to the change of the water temperature, and the like.
In the electric heating apparatus, a sealed cavity is formed in the protection device 10 for protecting the heating rod of the electric heating apparatus, and the first electrode 20 and the second electrode 30 which are independent of each other are arranged in the sealed cavity, and the first electrode 20 and the second electrode 30 are respectively connected to the detection circuit 40. Under the condition that the protection device 10 is not consumed so that water in the inner container flows into the sealed cavity, the sealed cavity inside the protection device 10 is in a sealed state, at this time, the first end and the second end of the detection circuit 40 are not communicated, and the detection circuit 40 feeds back a first output signal to the controller 50 according to a detection signal input by the controller 50. When the protection device 10 is consumed to a certain extent, the water in the inner container flows into the sealed cavity, so that the first electrode 20 is communicated with the second electrode 30, the first end and the second end of the detection circuit 40 are connected, and at this time, the detection circuit 40 feeds back a second output signal to the controller 50 according to the detection signal input by the controller 50. By the above scheme, according to the difference of the signals fed back by the detection circuit 40, the consumption state of the protection device 10 can be analyzed and judged.
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 protective device detection system, comprising:
the protective device is fixedly arranged on the inner container of the electric heating equipment and used for protecting a heating rod of the electric heating equipment from being corroded, and a sealing cavity is formed in the protective device;
the first electrode is arranged in the sealed cavity of the protection device;
the second electrode is arranged in the sealed cavity of the protection device;
a first end of the detection circuit is connected with the first electrode, and a second end of the detection circuit is connected with the second electrode; when the protection device is consumed to enable water in the inner container to flow into the sealed cavity, the first electrode is communicated with the second electrode, so that the first end of the detection circuit is connected with the second end of the detection circuit;
the controller is connected with the input end of the detection circuit and the output end of the detection circuit, and is used for inputting a detection signal to the detection circuit and acquiring a first output signal of the detection circuit when the first end of the detection circuit is not connected with the second end of the detection circuit; and when the first end of the detection circuit is connected with the second end of the detection circuit, acquiring a second output signal of the detection circuit.
2. The protection device detection system according to claim 1, wherein the detection circuit comprises a first terminal, a second terminal, a switching device, a first resistor, a second resistor and a first capacitor, the first terminal is connected to the first electrode, the second terminal is connected to the second electrode, a first end of the first resistor is connected to the controller, a second end of the first resistor is connected to a control end of the switching device, an input end of the switching device is connected to a power supply, an output end of the switching device is connected to a first end of the second resistor, a second end of the second resistor is connected to a first end of the first capacitor and the controller, a second end of the first capacitor is connected to the second terminal, and the first terminal is grounded.
3. The protection device detection system of claim 2, wherein the detection circuit further comprises a third resistor, wherein a second terminal of the second resistor is connected to the first terminal of the first capacitor and is connected to the controller via the third resistor.
4. The protection device detection system of claim 3, wherein the detection circuit further comprises a second capacitor, a first terminal of the second capacitor is connected to the common terminal of the third resistor and the controller, and a second terminal of the second capacitor is connected to ground.
5. The protective device detection system of any one of claims 1-4, wherein the protective device is cylindrical and the sealed cavity is coaxially disposed with the protective device.
6. The protection device detection system of any one of claims 1 to 4, wherein the protection device is a magnesium rod.
7. The protective device detection system of any one of claims 1 to 4, further comprising an information prompting device, the information prompting device being connected to the controller.
8. The protective device detection system of claim 7, wherein the information prompting apparatus is an audible alarm and/or a signal indicator light.
9. The protection device detection system of claim 1, wherein the controller is a single chip microcomputer.
10. An electrical heating apparatus comprising a protective device detection system as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121131019.1U CN215176070U (en) | 2021-05-25 | 2021-05-25 | Protection device detecting system and electric heating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121131019.1U CN215176070U (en) | 2021-05-25 | 2021-05-25 | Protection device detecting system and electric heating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215176070U true CN215176070U (en) | 2021-12-14 |
Family
ID=79375558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121131019.1U Active CN215176070U (en) | 2021-05-25 | 2021-05-25 | Protection device detecting system and electric heating equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215176070U (en) |
-
2021
- 2021-05-25 CN CN202121131019.1U patent/CN215176070U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20060258215A1 (en) | USB aromatic dispenser | |
| CN203498473U (en) | Electric water heater with magnesium rod consumption degree detecting function | |
| CN215176070U (en) | Protection device detecting system and electric heating equipment | |
| CN113218086A (en) | Protection device detecting system and electric heating equipment | |
| CN208939045U (en) | A kind of electro-tricycle battery protecting apparatus | |
| CN102374664B (en) | Water heater with anode rod consumption alarm indication function | |
| CN109338396A (en) | Hydro-electrolytic hydrogen production device water sealed tank | |
| CN207247574U (en) | A kind of modular anti-electric shock apparatus of water heater | |
| KR101727619B1 (en) | Hydrogen generating module for preventing leakage of water | |
| CN208311560U (en) | A kind of tap control device | |
| CN212058933U (en) | Internet of things gas meter using NB-loT equipment | |
| CN101852495A (en) | Water heater with anode rod failure mode monitoring | |
| CN206384968U (en) | Filter | |
| JP2772365B2 (en) | Water quality monitor | |
| JP5013089B2 (en) | Liquid level detector | |
| CN108444098B (en) | Adjustable protective electric water heater | |
| CN216868809U (en) | Water storage type water heater | |
| CN207716539U (en) | A kind of connector for the monitoring of pipeline water temperature | |
| CN219369275U (en) | A monitor terminal and monitoring bellows for smart city construction | |
| CN215179539U (en) | Metal consumption detection assembly and electric heating equipment | |
| CN109083232A (en) | A kind of domestic intelligent water-saving device | |
| CN212655858U (en) | Explosion-proof intelligent hydrolysis instrument | |
| CN211999922U (en) | Electronic anode of instant water heater | |
| CN109471460A (en) | A kind of water flow control signal generation apparatus | |
| CN215372021U (en) | Intelligent protection device for hydrogen storage device and hydrogen storage device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |