CN218781858U - Electric conductor detection device - Google Patents
Electric conductor detection device Download PDFInfo
- Publication number
- CN218781858U CN218781858U CN202222274986.4U CN202222274986U CN218781858U CN 218781858 U CN218781858 U CN 218781858U CN 202222274986 U CN202222274986 U CN 202222274986U CN 218781858 U CN218781858 U CN 218781858U
- Authority
- CN
- China
- Prior art keywords
- unit
- control unit
- detection unit
- capacitor
- main
- 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
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model discloses an electric conductor detection device, it includes: the device comprises a control unit, a main detection unit, an auxiliary detection unit and an output unit, wherein the control unit is used for detecting and discriminating, the output unit is used for outputting an indication signal, the control unit is respectively connected with the main detection unit, the auxiliary detection unit and the output unit, and the control unit is connected with the output unit through a resistor R1 and a wiring terminal; and the main detection unit and the auxiliary detection unit have electric conductors when the change range of the self capacitance capacity exceeds 20 percent. The utility model discloses a main detecting element presses close to needs and detects household electrical appliances water tank wall with supplementary detecting element, when having liquid or conductive metal in the water tank, and the control unit can detect main detecting element and the electric capacity of assisting detecting element, surpasss 20% then through the pilot signal that output unit output exists the electric conductor after detecting to change, does not exceed 20% when detecting to change the back, then does not have the pilot signal of electric conductor through output unit output.
Description
Technical Field
The utility model belongs to the technical field of household electrical appliances liquid level detection and electric conductor and specifically relates to an electric conductor detection device.
Background
Along with the intellectualization of household appliances, the requirements of household appliances on the intellectualization are higher and are diversified. In particular, there are various requirements in the neighborhood of liquid level detection, position detection, tentacle detection, etc. The liquid level detection device of the existing household appliance generally only has the function of detecting the liquid level, but does not have the function of detecting metal parts in the household appliance, and the liquid level detection device of the existing household appliance has the disadvantages of complex structure and higher cost.
Therefore, improvements to the prior art are yet to be made.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an electric conductor detection device, the liquid level detection device who aims at solving current household electrical appliances does not have the function that detects the metalwork, and the structure is complicated to and the great technical problem of cost.
In order to achieve the above purpose, the technical scheme of the utility model is that: an electrical conductor detection device, comprising: the device comprises a control unit, a main detection unit, an auxiliary detection unit and an output unit, wherein the control unit is used for detecting and discriminating, the output unit is used for outputting an indication signal, the control unit is respectively connected with the main detection unit, the auxiliary detection unit and the output unit, and the control unit is connected with the output unit through a resistor R1 and a wiring terminal; and the main detection unit and the auxiliary detection unit are conductive bodies when the self capacitance capacity change range exceeds 20%.
The electric conductor detection device is characterized in that the control unit is further connected with a power module, and the power module is used for supplying power to the control unit and the output unit.
The conductor detection device is characterized in that the main detection unit and the auxiliary detection unit are both composed of a connecting wire and a bonding pad, and the bonding pad is connected with the control unit through the connecting wire.
The conductor detection device is characterized in that the control unit comprises a touch chip U1, a capacitor C2 and a capacitor C3; the pin 5 of the touch chip U1, the positive electrodes of the capacitor C1 and the capacitor C2 are connected with the power supply module; the positive electrode of the capacitor C3 is connected with a pin 3 of the touch chip U1; and the negative electrodes of the capacitor C1, the capacitor C2 and the capacitor C3 are grounded.
In the conductor detection device, the pin 1 of the wiring terminal and the pin 2 of the touch chip U1 are grounded.
In the conductor detection device, one end of the resistor R1 is connected to the pin 5 of the touch chip U1.
The conductor detection device is characterized in that a main detection unit of a pin 1 of the touch chip U1 is connected, and a pin 6 of the touch chip U1 is connected with an auxiliary detection unit.
Has the beneficial effects that: the utility model discloses a main detecting element presses close to needs and detects household electrical appliances water tank wall with supplementary detecting element, when there is liquid or conductive metal in the water tank, main detecting element can exceed 20% with the change of assisting the electric capacity of detecting element self, and the control unit can detect main detecting element and assist detecting element's electric capacity, exceed 20% then there is the pilot signal of electric conductor through the output unit output after detecting the change, no more than 20% after detecting the change, then there is not the pilot signal of electric conductor through the output unit output. Therefore, the utility model can detect whether the water tank of the household appliance has liquid or not and whether the conductive metal exists in the water tank or not; the integral structure is simple, contact test is not needed, detection can be achieved only by installing the metal detector on the outer wall surface of the water tank, and the manufacturing cost is far lower than that of the existing metal detector.
Drawings
Fig. 1 is a block diagram of the present invention.
Fig. 2 is a circuit diagram of the present invention.
Fig. 3 is a schematic view of an embodiment of the present invention.
Fig. 4 is a schematic installation diagram of a second embodiment of the present invention.
In the figure: 1. a control unit; 2. a main detection unit; 3. an auxiliary detection unit; 4. an output unit; 5. a wiring terminal; 6. a power supply module; 100. a conductor detection device; 200. a water tank; 300. a plastic shell; 400. a metal piece.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention will be described in further detail below with reference to the accompanying drawings and examples.
As shown in fig. 1-2, the utility model discloses an electric conductor detection device 100, it includes: the device comprises a control unit 1, a main detection unit 2, an auxiliary detection unit 3 and an output unit 4, wherein the control unit 1 is used for detecting and discriminating, the output unit 4 is used for outputting an indication signal, the control unit 1 is respectively connected with the main detection unit 2, the auxiliary detection unit 3 and the output unit 4, and the control unit 1 is connected with the output unit 4 through a resistor R1 and a wiring terminal 5; the main detection unit 2 and the auxiliary detection unit 3 have a conductive body when the change range of the capacitance thereof exceeds 20%.
After the structure is adopted, the utility model has the advantages that the main detection unit and the auxiliary detection unit are close to the water tank of the household appliance, so that the self capacitance capacity change of the main detection unit and the self capacitance capacity change of the auxiliary detection unit are detected through the control unit; when the capacitance change of the main detection unit and the auxiliary detection unit exceeds 20%, the control unit can continuously detect and discriminate signals of the main detection unit and the auxiliary detection unit in real time, so that real-time detection is realized. Because the electric conductor includes water and various conducting liquid to and various conducting metal is consequently, the utility model discloses whether not only can detect the water tank and have water and liquid, whether there is the electrically conductive metalwork in can also detecting domestic appliance's the water tank. And the whole structure is simple, the manufacturing cost is low, and the cost is far lower than that of the existing metal detector.
All the units and modules are hardware modules.
As shown in FIG. 3, the present invention is used for detecting the liquid level, and the conductor detecting device 100 is installed on the outer wall surface of the water tank 200. As shown in fig. 4, the conductor detecting apparatus 100 is mounted on a plastic housing 300 of a household appliance for detecting whether a metal member 400 is present in the plastic housing 300.
Specifically, the control unit 1 is further connected with a power module 6, the power module 6 is used for supplying power to the control unit 1 and the output unit 4, the power module supplies power, so that the main control unit can realize detection, and the output unit is controlled to output an indication signal according to a detection result.
Specifically, the main detection unit 2 and the auxiliary detection unit 3 are both composed of a connecting line and a bonding pad, and the bonding pad is connected with the control unit 1 through the connecting line.
With the above structure, since the capacitance of the self capacitor changes when the pad is close to the conductor and is relatively stable when the pad is not in contact with the conductor, the control unit can detect the capacitance change of the main detection unit and the auxiliary detection unit.
Specifically, the control unit 1 comprises a touch chip U1, a capacitor C2 and a capacitor C3; the pin 5 of the touch chip U1, the positive electrodes of the capacitor C1 and the capacitor C2 are connected with the power module; the positive electrode of the capacitor C3 is connected with a pin 3 of the touch chip U1; and the negative electrodes of the capacitor C1, the capacitor C2 and the capacitor C3 are grounded.
Specifically, the pin 1 of the connection terminal 5 and the pin 2 of the touch chip U1 are grounded.
Specifically, one end of the resistor R1 is connected to the pin 5 of the touch chip U1.
Specifically, the main detection unit 2 is connected to the pin 1 of the touch chip U1, and the auxiliary detection unit 3 is connected to the pin 6 of the touch chip U1.
After the structure of the oil adding device is adopted, the utility model discloses can detect main detecting element and assist detecting element's self electric capacity through the touch chip to judge whether the variation range of self electric capacity exceeds 20%.
Preferably, the output signal of the output unit 4 may be a high level or a low level, or control an indicator lamp to be turned on or off.
The utility model discloses a main detecting element presses close to needs and detects household electrical appliances water tank wall with supplementary detecting element, when there is liquid or conductive metal in the water tank, main detecting element can exceed 20% with the change of assisting the electric capacity of detecting element self, and the control unit can detect main detecting element and assist detecting element's electric capacity, exceed 20% then there is the pilot signal of electric conductor through the output unit output after detecting the change, no more than 20% after detecting the change, then there is not the pilot signal of electric conductor through the output unit output. Therefore, the utility model can detect whether the water tank of the household appliance has liquid or not and whether the conductive metal exists in the water tank or not; the integral structure is simple, contact test is not needed, detection can be achieved only by installing the metal detector on the outer wall surface of the water tank, and the manufacturing cost is far lower than that of the existing metal detector.
The above is a preferred embodiment of the present invention, and certainly not to limit the scope of the present invention, it should be noted that, for those skilled in the art, modifications or equivalent substitutions of the technical solutions of the present invention without creative efforts may not depart from the protection scope of the technical solutions of the present invention.
Claims (7)
1. An electrical conductor testing apparatus, comprising: the device comprises a control unit, a main detection unit, an auxiliary detection unit and an output unit, wherein the control unit is used for detecting and discriminating, the output unit is used for outputting an indication signal, the control unit is respectively connected with the main detection unit, the auxiliary detection unit and the output unit, and the control unit is connected with the output unit through a resistor R1 and a wiring terminal; and the main detection unit and the auxiliary detection unit have electric conductors when the change range of the self capacitance capacity exceeds 20 percent.
2. The electrical conductor testing apparatus of claim 1, wherein said control unit is further connected to a power module, said power module being adapted to provide power to said control unit and said output unit.
3. The electrical conductor inspection apparatus as claimed in claim 1, wherein each of the main inspection unit and the auxiliary inspection unit is composed of a bonding wire and a bonding pad, and the bonding pad is connected to the control unit through the bonding wire.
4. The conductor detection device according to claim 1, wherein the control unit comprises a touch chip U1, a capacitor C2 and a capacitor C3; the pin 5 of the touch chip U1, the positive electrodes of the capacitor C1 and the capacitor C2 are connected with the power supply module; the positive electrode of the capacitor C3 is connected with a pin 3 of the touch chip U1; and the negative electrodes of the capacitor C1, the capacitor C2 and the capacitor C3 are grounded.
5. The conductor detecting device according to claim 4, wherein pin 1 of the connection terminal and pin 2 of the touch chip U1 are grounded.
6. The device as claimed in claim 4, wherein one end of the resistor R1 is connected to the pin 5 of the touch chip U1.
7. The conductor detecting device according to claim 4, wherein the pin 1 of the touch chip U1 is connected to the main detecting unit, and the pin 6 of the touch chip U1 is connected to the auxiliary detecting unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222274986.4U CN218781858U (en) | 2022-08-29 | 2022-08-29 | Electric conductor detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222274986.4U CN218781858U (en) | 2022-08-29 | 2022-08-29 | Electric conductor detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218781858U true CN218781858U (en) | 2023-03-31 |
Family
ID=85708062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222274986.4U Active CN218781858U (en) | 2022-08-29 | 2022-08-29 | Electric conductor detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218781858U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116719093A (en) * | 2023-08-10 | 2023-09-08 | 中天宽带技术有限公司 | Circuit and method for detecting ground power supply system immersion and entering of living things |
-
2022
- 2022-08-29 CN CN202222274986.4U patent/CN218781858U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116719093A (en) * | 2023-08-10 | 2023-09-08 | 中天宽带技术有限公司 | Circuit and method for detecting ground power supply system immersion and entering of living things |
| CN116719093B (en) * | 2023-08-10 | 2023-10-20 | 中天宽带技术有限公司 | Circuit and method for detecting ground power supply system immersion and entering of living things |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN218781858U (en) | Electric conductor detection device | |
| CN204131189U (en) | The two-sided USB adapter of multiplex roles | |
| CN203422433U (en) | Detection interface structure of network cable insertion | |
| CN218297299U (en) | Liquid level detection circuit | |
| CN112834950B (en) | Electric leakage detection circuit, electric leakage protection circuit and household appliance | |
| CN211176319U (en) | Pipeline system with liquid shortage detection function | |
| CN210490171U (en) | Multifunctional distribution box | |
| CN113162130B (en) | Contact type charging device, wearable equipment and contact type charging system | |
| CN217639480U (en) | Power line detection tool | |
| CN217543970U (en) | Alarm for storage battery | |
| CN201242558Y (en) | Electric-theft protection alarm indication device for single-phase electric energy meter | |
| CN201852615U (en) | Alternating current electrolytic liquid level sensor | |
| CN218066916U (en) | Immersion detection device and outdoor power supply device | |
| CN214477285U (en) | Intelligent controller of circuit breaker | |
| CN220187805U (en) | Three-voltage signal water tank water level sensor | |
| CN213018001U (en) | Proximity induction type water outlet device | |
| CN205015050U (en) | Water tank detection of water level appearance | |
| WO2021212839A1 (en) | Electric leakage detection circuit, electric leakage protection circuit, and household appliance | |
| CN215919533U (en) | Household appliance control panel with pressure sensing module | |
| CN213985388U (en) | Non-contact cascade electric temperature monitoring device | |
| CN208421256U (en) | Water sensor | |
| CN211178657U (en) | Water flow detection assembly and water outlet device | |
| CN219162336U (en) | Novel mobile power supply | |
| CN217032680U (en) | Non-contact water shortage detection device and electronic equipment | |
| CN220773233U (en) | Battery power consumption detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |