CN112394243A - Detection module and electrical equipment - Google Patents
Detection module and electrical equipment Download PDFInfo
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- CN112394243A CN112394243A CN201910766189.8A CN201910766189A CN112394243A CN 112394243 A CN112394243 A CN 112394243A CN 201910766189 A CN201910766189 A CN 201910766189A CN 112394243 A CN112394243 A CN 112394243A
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- 238000005070 sampling Methods 0.000 claims description 17
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- 238000010411 cooking Methods 0.000 description 14
- 238000004891 communication Methods 0.000 description 12
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- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Abstract
The embodiment of the invention discloses a detection module and electrical equipment. The detection module includes: a detection coil capable of mutually inducing a different impedance with a load located within a predetermined load bearing area; the detection circuit is connected with the detection wire coil and has working signals with different signal values when the impedances are different, wherein the working signals are used for determining whether a load exists and/or the load type of the load.
Description
Technical Field
The invention relates to the technical field of electric appliances, in particular to a detection module and electric equipment.
Background
With the development of technology, many cooking devices require power supply; therefore, if a plurality of cooking devices are arranged in a kitchen, the cooking devices are provided with power supply wires connected to the sockets, on one hand, due to the fact that the power supply wires are numerous, the power supply wires are mutually wound and occupy a large area; on the other hand, many wires require a plurality of sockets, and when the wires are worn out or damaged, safety accidents are easily caused by electric leakage.
Disclosure of Invention
In view of this, the embodiments of the present invention are expected to provide a detection module and an electrical apparatus.
The technical scheme of the invention is realized as follows:
a detection module, comprising:
a detection coil capable of mutually inducing a different impedance with a load located within a predetermined load bearing area;
the detection circuit is connected with the detection wire coil and has working signals with different signal values when the impedances are different, wherein the working signals are used for determining whether a load exists and/or the load type of the load.
Based on above-mentioned scheme, detection drum includes:
the power line is connected with the power control circuit and used for receiving an input signal provided by the power control circuit;
a signal line which is mutually inductive with the power line and is connected with the detection circuit;
wherein the power line and the signal line can mutually interact with a load together.
Based on the scheme, the power wire and the signal wire are synchronously wound as a whole to form the detection wire coil which is simultaneously formed by taking the power wire and the signal wire as a ring body of a wire ring.
Based on the above scheme, the detection circuit includes:
a first switch tube;
the second switching tube is connected with the first switching tube in series;
the signal wire is connected with the second switch tube in parallel.
Based on the above scheme, the detection module further comprises:
and the sampling element is used for sampling the working signal to generate a detection signal.
Based on the scheme, the detection wire coil and the charging load mutually interact to generate first impedance;
the detection circuit is specifically used for generating a first working signal corresponding to the first impedance;
the sampling element is specifically configured to obtain a detection signal larger than a first reference value based on the first operating signal.
Based on the scheme, the detection wire coil and the heating load mutually interact to generate second impedance;
the detection circuit is specifically used for generating a second working signal corresponding to the second impedance;
the sampling element is specifically configured to obtain a detection signal smaller than a second reference value based on the second operating signal, where the second reference value is smaller than the first reference value.
Based on the above scheme, the detection module further comprises:
and the power control circuit is connected with the detection wire coil and used for providing input signals required by the work of the detection wire coil according to preset time intervals.
Based on the scheme, the power control circuit provides an input signal to the detection wire coil specifically according to a preset frequency.
An electrical device comprising:
the bearing shell is provided with a bearing surface;
the integrated modules are arranged in the bearing shell in parallel, correspond to different bearing areas of the bearing surface and have at least two working modes, wherein the integrated modules are used for heating a load when working in a heating mode in the working modes and/or wirelessly supplying power to the load when working in a wireless power transmission mode in the working modes;
the detection module provided by any technical scheme is used for detecting whether a load and/or a load type exist in the bearing area through mutual inductance with the load in the bearing area of the plurality of integrated modules.
Based on the above scheme, one of the detection modules is configured to detect whether a load and/or a load type exists in a carrying area of one of the integration modules.
The detection module and the electrical equipment provided by the embodiment of the invention can generate different impedances by mutual inductance with a load, and the detection circuit can obtain different working signals based on the different impedances so as to detect whether the load and/or the load type exist in a preset area. On the other hand, in the embodiment, the detection module realizes the detection of the load through the mutual inductance of the detection wire coil, and has the characteristic of simple structure; meanwhile, the detection circuit does not have a large-volume device such as a single-pole double-throw switch and/or a relay.
Drawings
Fig. 1 is a schematic structural diagram of a first detection module according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a detection wire coil according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a connection between a detection circuit and a detection wire coil according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electrical apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a second electrical device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a third electrical device according to an embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further described in detail with reference to the drawings and the specific embodiments of the specification.
As shown in fig. 1, the present embodiment provides a detection module, including:
a detection coil capable of mutually inducing a different impedance with a load located within a predetermined load bearing area;
the detection circuit is connected with the detection wire coil and has working signals with different signal values when the impedances are different, wherein the working signals are used for determining whether a load exists and/or the load type of the load.
The detection wire coil comprises at least one or more coils; one or more coils are also included in the load, so that the impedance in the whole detection module changes through the mutual inductance of the coils, and further the current changes.
The different types of loads have substantially different coil parameters of the coil, including: the number of coils, the size of the coils, the impedance of the coils, and the like.
In this way, different types of loads approaching and/or departing from the detection wire coil can generate different impedances on the detection wire coil, and the detection wire coil is connected to the detection circuit, so that under the condition that an input signal is unchanged, an operating signal of the detection circuit changes, wherein the operating signal comprises but is not limited to an operating current and/or an operating voltage of a specific component in the detection circuit.
The load types include, but are not limited to: heating loads requiring heating and/or charging loads requiring wireless power transmission.
In some embodiments, as shown in fig. 2, the detection coil comprises:
the power line is connected with the power control circuit and used for receiving an input signal provided by the power control circuit;
a signal line which is mutually inductive with the power line and is connected with the detection circuit;
wherein the power line and the signal line can mutually interact with a load together.
In the present embodiment, the power line and the signal line are two different lines.
The cross-sectional area of the power line is larger than that of the signal line.
The input signal may be used to provide an operating stimulus for the detection module.
The power line is coupled to the power control circuit for receiving an input signal provided by the power control circuit.
The signal wire and the power wire are mutually inductive, so that the input signal of the power wire can be transmitted to the detection circuit. Meanwhile, the signal wire is connected with the detection circuit, so that current and voltage exist in the detection circuit to generate working signals of the detection sub-module.
In this embodiment, the detection wire coil is formed by two wires, namely a power wire and a signal wire, and the two wires are mutually inducted to realize signal coupling and power transmission.
In other embodiments, the detection coil may be a coil including only one type of transmission line, and is not limited to the above-described structure.
The power wire and the signal wire are synchronously wound as a whole to form the detection wire coil which is simultaneously formed by a ring body with the power wire and the signal wire as wire rings.
In some embodiments, the detection line tray comprises two lines, a power line and a signal line; however, the number of power lines and signal lines is not limited.
It is noted that in some embodiments, the number of power lines and signal lines is the same.
In some embodiments, the number of the detection wire coils may be one or more.
In the embodiment, the disc body of the detection wire disc is simultaneously composed of a signal wire and a power wire which are synchronously wound.
For example, as shown in fig. 2, signal wires and power wires are wound together in a one-to-one matching manner, and each disk body of the formed wire coil comprises one circle of signal wires and one circle of power wires. A disk body is composed of a plurality of coils with the same or similar ring diameters.
In other embodiments, the signal lines and the power lines may be wound in a non-one-to-one matching manner, and the disc body of the formed wire coil may include: s1 signal lines and S2 power lines; s1 and S2 are both positive numbers and may be unequal positive numbers.
In some embodiments, as shown in fig. 3, the detection circuit comprises:
a first switch tube;
the second switching tube is connected with the first switching tube in series;
the signal wire is connected with the second switch tube in parallel.
In this embodiment, the first switch tube and the second switch tube may each be an electronic component having an on and off function, such as a triode and/or a MOS tube.
In fig. 3, the first switch tube and the second switch tube are both Metal-Oxide-Semiconductor Field-Effect transistors (MOSFETs) and NMOSFETs.
Lm1 in FIG. 3 is a signal wire in the detection wire coil; lm2 is a power line in the detection wire coil; it can be seen that the signal line is directly connected in the detection circuit; and the power wire in the detection wire coil and the signal wire are mutually inducted.
In fig. 3, electronic components such as a capacitor Cs and a capacitor Cm are connected to the detection circuit to form the detection circuit.
In some embodiments, the detection module further comprises: and the sampling element is used for sampling the working signal to generate a detection signal.
The sampling element may be a sampling resistor in this embodiment, but is not limited to a sampling resistor.
In other embodiments, the sampling element may further comprise various measuring instruments having a measuring function.
A sampling resistor or the like may be provided at a point a of the detection circuit to sample the operating signal of the detection circuit, thereby obtaining the detection signal.
In this embodiment, the first switch tube and the second switch tube are connected in series, and the signal line of the detection wire coil is connected in parallel with the second switch tube. Therefore, if the detection wire coil has a load and mutual inductance thereof, or different types of loads and mutual inductance thereof, the impedance of the signal wire changes, so that the impedance of the whole detection circuit changes, the impedance of the detection circuit also changes, and finally the working signal of the detection circuit changes.
In some embodiments, the detection wire coil interacts with the charging load to generate a first impedance; the detection circuit is specifically used for generating a first working signal corresponding to the first impedance; the sampling element is specifically configured to obtain a detection signal larger than a first reference value based on the first operating signal.
Further, the detection wire coil generates a second impedance by mutual inductance with the heating load; the detection circuit is specifically used for generating a second working signal corresponding to the second impedance; the sampling element is specifically configured to obtain a detection signal smaller than a second reference value based on the second operating signal, where the second reference value is smaller than the first reference value.
In the present embodiment, the charging load and the heating load have different characteristics; in order to accelerate charging in the charging load, a magnetic core is arranged in a charging coil of the charging load, so that the mutual inductance between a detection wire coil and the detection wire coil is greatly enhanced; while the heating load is generally a metallic article that can be directly viewed as a coil, but does not contain a magnetic core. The mutual inductance effect of the detection coil and the charging load and the heating load are different, so that the impedance of the detection coil changes between the first impedance and the second impedance.
In some embodiments, if the current load is a legal load, the detection signal is not greater than the first reference value and not less than the second reference value; if the current load is an illegal load except a legal load, the detection wire coil can generate a third impedance, and a corresponding detection circuit generates a third working signal; the detection signal can be located between the first reference value and the second reference value, so that the control module for obtaining the detection signal can know whether the current load mutually inducted with the detection wire coil is a legal load or not through the analysis of the signal value, and if the current load is the legal load, the load type of the legal load.
In some embodiments, the detection module further comprises:
and the power control circuit is connected with the detection wire coil and used for providing input signals required by the work of the detection wire coil according to preset time intervals.
And the power control circuit is connected with the detection wire coil and can provide input signals for a power wire of the detection wire coil, and the power control circuit can control the power provided for the detection circuit by adjusting the frequency and/or duty ratio of the input signals.
In this embodiment, the interval durations of any predetermined time interval may be equal, so as to realize periodic detection of the detection signal; in other embodiments, the predetermined time intervals may be unequal, and as such, a shorter predetermined time interval may be used during peak usage periods and a longer predetermined time interval may be used during low peak usage periods in conjunction with peak usage periods of the appliance.
In some embodiments, the power control circuit provides an input signal to the detection line coil, particularly at a predetermined frequency.
The predetermined frequency may be between 80kHz and 120kHz, and specifically, the predetermined frequency may be 100 kHz.
In some embodiments, the detection module may detect the location of the load through its own location, so that the signal line may realize location positioning of the load.
Meanwhile, the detection wire coil detects whether the load and/or the load type exist or not through mutual inductance, so that the environmental parameters of the environment where the electrical equipment is located influence the mutual inductance and impedance change generated by the mutual inductance, and the detection wire coil can also be used for detecting the environmental parameters. The environmental parameters include, but are not limited to: temperature and/or humidity.
As such, in some embodiments, the control module is further configured to determine an environmental parameter of an environment in which the electrical apparatus is currently located according to the detection signal.
The present embodiment also provides an electrical apparatus, including:
as shown in fig. 4, the present embodiment provides an electric apparatus including:
the bearing shell is provided with a bearing surface;
the integrated modules are arranged in the bearing shell in parallel, correspond to different bearing areas of the bearing surface and have at least two working modes, wherein the integrated modules are used for heating a load when working in a heating mode in the working modes and/or wirelessly supplying power to the load when working in a wireless power transmission mode in the working modes;
the detection module provided in any of the foregoing embodiments is configured to detect whether there is a load and/or a load type in a carrying area of a plurality of the integrated modules through mutual inductance with the load in the carrying area.
In this embodiment, the electrical apparatus may include a rectangular or cylindrical carrier housing, and a plurality of integrated modules having both a heating function and a power supply function are disposed in the carrier housing.
The bearing shell has at least one upward surface which can be used for bearing load, and the surface is the bearing surface; any load may be carried on the load-bearing surface.
The load includes, but is not limited to, a heating load, and/or a charging load that requires charging.
Further, the heating load may include: a cooking load for cooking; specifically, the cooking load includes various cooking devices. The charging load includes various kinds of power receiving apparatuses capable of receiving wireless charging.
In the present embodiment, the cooking apparatus includes, but is not limited to: electromagnetic oven and/or electromagnetic oven pot.
The powered device may be various electronic devices capable of receiving a wireless charging signal, for example, the powered device includes but is not limited to a mobile phone, a tablet computer, or a wearable device capable of wireless charging.
In this embodiment, a plurality of integrated modules are disposed in the carrier housing, and the integrated modules may be sequentially arranged in the carrier housing, specifically, the integrated modules are distributed in the carrier housing in a matrix.
The bearing shell is provided with a bearing surface which can be used for placing a load, and the load can be other load equipment or equipment needing charging. The load comprises the electrical equipment and/or the powered equipment.
In this embodiment, the integrated modules each include: a working circuit; the operating circuit operates in the heating mode or the wireless power transmission mode at different input power consumptions.
For example, the power control of the working circuit in the integrated module is realized by adjusting the duty ratio and/or the frequency of the input signal of the integrated module.
In some cases, the integrated module operates in the heating mode for a first level of power when the integrated module generates a first power consumption. When the integrated module works in the wireless power transmission mode, the integrated module generates second power consumption, and the first power consumption is larger than the second power consumption. In other cases, the integrated module is further operable in the heating mode for a second level of power, when the integrated module generates a third power consumption; the third power consumption is less than the second power consumption.
For example, the heating mode of the first stage power may be used for food cooking; the heating device of the second level of power may be used for keeping warm the cooked food material. At this time, although the integrated modules are all operated in the heating mode, the demand for heating power is different, and in some specific cases, the power consumption generated by the heating mode of the second stage power is even smaller than the power consumption generated by the wireless power supply to the power receiving device in the wireless power transmission mode.
At this time, the power control module of the electrical equipment can realize power output control of the working circuit by adjusting signal parameters, such as frequency or duty ratio, of the input signal input to the integrated module, so as to realize control of the working mode of the integrated module.
Of course, in a specific implementation process, the heating mode of the first stage power, the heating mode of the second stage power and/or the wireless power transmission mode may also be subdivided into a plurality of sub-modes, and the power consumption generated by each sub-mode may be different; the specific implementation is also realized by the input power of the input signal, and is not repeated here. The power of the integrated module in the heating mode and the wireless power transmission mode can be set according to specific requirements.
In summary, the embodiment provides an electrical apparatus, which includes a plurality of integrated modules, the modules are arranged on a surface of a carrying surface, and a plurality of cooking positions and/or wireless power transmission positions are/is arranged on the surface of the carrying surface, so that when the electrical apparatus is used in a kitchen, the electrical apparatus can heat a plurality of electrical apparatuses, the electrical apparatus does not need to be inserted into a power supply socket through a wire of the electrical apparatus, and a powered apparatus can be charged through wireless power transmission, thereby reducing the use of the wire, reducing the winding of the wire, and reducing safety accidents caused by the wire; the safety of the electrical equipment is improved.
In some embodiments, the electrical device further comprises:
the detection module is positioned in an area corresponding to the bearing area of the integrated module and at least can be used for detecting whether a load on the corresponding integrated module forms a detection signal;
and the control module is connected with the first detection module and used for controlling the state of the integrated module where the load is located according to the detection signal.
In this embodiment, the electrical equipment includes an inspection module, and the inspection module can be at least used for inspecting whether a load is on the bearing surface. If there is a load, the integrated module may need to be switched from the non-operating state to the operating state.
When the integrated module is in a non-working state, no current transmission exists in the working circuit corresponding to the integrated module, and the integrated module does not generate power consumption. If the integrated module is in a working state, current exists in a working circuit in the integrated module, and the integrated module generates heating power consumption or wireless power transmission power consumption.
Specifically, the control module may determine whether a load is present in a carrying area of at least an mth integrated module according to the detection signal, and may control the mth integrated module to be in an operating state if the load is present, and may control the mth integrated module to be in a non-operating state if the load is absent.
Here, m may be any positive integer smaller than the total number of the integrated modules included in the electrical equipment.
Further, the control module is specifically configured to control the corresponding integrated module to operate in the wireless power transmission mode when the detection signal is greater than a first reference value.
If the detection signal is greater than the first reference value, it is indicated that the current load is a legal load corresponding to the electrical equipment, and the load is a power transmission load, so that the corresponding integrated module with the load in the bearing area is controlled to work in a wireless power transmission mode.
Further, the control module is specifically configured to control the corresponding integrated module to operate in a heating mode when the detection signal is smaller than a second reference value, where the second reference value is smaller than the first reference value.
In this embodiment, if the detection signal is smaller than the second reference value, the load currently placed on the bearing surface is also considered to be a legal load of the electrical equipment and a heating load, so that the corresponding integrated module is controlled to enter a heating mode.
In this embodiment, the second reference value is smaller than the first reference value.
Further, the control module is further configured to control the corresponding integrated module to be in a non-operating state when the detection signal is located between the first reference value and the second reference value.
If the detection signal is between the first reference value and the second reference value, the load is present on the current bearing surface, but the load is not a legal load (i.e. an illegal load) of the electrical equipment, and the corresponding integrated module is controlled to be in a non-working state, so that on one hand, the power consumption of the integrated module in the working state is reduced, and on the other hand, the damage of the integrated module in the working state to the illegal load can be reduced.
In other embodiments, the electrical device further comprises:
the wireless communication module is used for establishing wireless communication of wireless power transmission with a charging load receiving the wireless power transmission when the integrated module enters the wireless power transmission mode;
the control module is connected with the wireless communication module and used for controlling the integrated module in the wireless power transmission mode to wirelessly transmit power to the charging load after the wireless communication module is successfully communicated with the charging load.
In this embodiment, the electrical equipment further includes a wireless communication module, the wireless communication module can communicate with the charging load, and the information content of the communication at least includes: power transmission parameters for wireless power transmission, which may include: wireless power transmission protocol parameters followed by wireless power transmission, power transmitted current and/or voltage transmitted by wireless power transmission, and the like.
In some embodiments, the information content of the communication may further include: the charging state information is such that the electrical equipment can adjust the charging power in the wireless charging mode according to the difference between the actual charging state and the expected charging state of the charging load, so that the actual charging state and the expected charging state of the charging load are as close as possible.
Several specific examples are provided below based on any of the embodiments described above:
example 1:
as shown in fig. 5, the present example provides an electrical appliance 1, which may be a full-surface smart electromagnetic hob. The electrical equipment includes:
a bearing surface 11 of the cooktop surface;
an integrated module 4 for independent heating or power transmission; the integrated modules form a matrix layout.
A hand-held mobile phone 2 is arranged on the bearing surface 11; other digital or electronic devices or apparatuses 3; an iron pan 5 and the like.
All the independent heating or power transmission modules are numbered according to a certain rule as shown in the following figure, and after the cooking bench is powered on, the cooking bench can automatically detect and identify the type and/or area of the load on the cooking bench. As shown in fig. 6, the pot is detected and identified above the integrated module 5-3, 5-4, 6-3, 6-4 and is a pot.
The modules are organized into a matrix layout, and the identity of the modules can be represented by coordinates, where coordinates 5-3 identify the 5 th column, 3 rd row of modules. The coordinates 5-4 indicate column 5, row 4, of the integrated module.
The workflow of the electrical device provided by the present example may include:
after the electrical equipment is powered on, starting cycle detection, wherein the detection is used for detecting which integrated modules on the electrical equipment have loads and/or load types;
and judging whether the integrated module N-M needs to work or not based on the detection signal obtained by detection, for example, a load on the integrated module N-M may need to work and needs to enter a working state, or else, the integrated module N-M does not work and the electrical equipment does not need to enter the working state.
If yes, judging whether the corresponding integrated module needs to be heated or not;
if heating is needed, the integrated module works in a heating mode;
if no heating is required, the integrated module operates in a wireless power transmission mode.
Specifically, whether a load exists on the module N-M is detected in a circulating mode, if so, the type and the area of the load are judged, whether a program needs to work or not is detected, if the corresponding module needs to work, the program is appointed to work according to the type of the work, and the program is repeated continuously, so that a plurality of loads can work simultaneously.
The heating and power transmission functions are integrated, so that the practicability is higher;
the user can directly use the electronic equipment and the tailless kitchen power supply without an external power supply, and can also place the pot at any position and heat the pot, so that the user experience is better; the kitchen appliance without the tail is a cooking appliance without a power supply line.
The tailless kitchen electricity has no external power line, thereby being more convenient and safer to clean.
The present example also provides a detection method of detecting a load and/or a load type, including, but not limited to, the steps of:
the detection circuit operates at a frequency (e.g., 100kHz) to periodically generate a detection signal;
detecting the amplitude of the detection signal returned by the analysis and comparing the amplitude with a reference value;
judging whether the detection signal is larger than a first reference value,
if so, controlling the integrated module to start wireless power transmission with minimum power so as to provide required energy consumption for communication establishment;
judging whether the communication establishment is successful;
if the identification is successful, the system corresponding to the integrated module starts to work, so that the integrated module is controlled to wirelessly charge the charging load in a wireless power transmission mode;
if the identification fails, the system corresponding to the integrated module stops working, namely the integrated module is in a non-working state.
If the detection signal is not greater than the first reference value, further determining whether the detection signal is less than a second reference value,
if the detection signal is smaller than the second reference value, the heating load is judged, and therefore the control integrated module works in the heating mode.
Example 2:
the present example provides a detection coil, as shown in fig. 2, comprising:
power lines, corresponding to the bold lines in fig. 2;
signal lines, corresponding to thin lines in fig. 2.
The power line is used for power control; the signal wire is used for various sensing detection; thus, a single-pole double-throw switch or a relay is not needed; the detection signals such as the type and the position of the load, the occupied area of the load on the bearing surface and the like can be dynamically detected in real time; detecting that the power is small, and judging the change of the load position in real time, and the like; the equivalent inductance and the resistance value can be calculated while the position is detected, and the equivalent inductance and the resistance value can be fed back to the control circuit, so that the heating or power transmission efficiency is higher; various power combination designs can be made, etc.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (11)
1. A detection module, comprising:
a detection coil capable of mutually inducing a different impedance with a load located within a predetermined load bearing area;
the detection circuit is connected with the detection wire coil and has working signals with different signal values when the impedances are different, wherein the working signals are used for determining whether a load exists and/or the load type of the load.
2. The detection module according to claim 1, characterized in that the detection coil comprises:
the power line is connected with the power control circuit and used for receiving an input signal provided by the power control circuit;
a signal line which is mutually inductive with the power line and is connected with the detection circuit;
wherein the power line and the signal line can mutually interact with a load together.
3. The detection module according to claim 2, wherein the power wire and the signal wire are wound simultaneously as a winding body to form the detection wire coil simultaneously composed of a loop body in which the power wire and the signal wire are wire loops.
4. The detection module according to any one of claims 1 to 3, wherein the detection circuit comprises:
a first switch tube;
the second switching tube is connected with the first switching tube in series;
the signal wire is connected with the second switch tube in parallel.
5. The detection module according to any one of claims 1 to 3, further comprising:
and the sampling element is used for sampling the working signal to generate a detection signal.
6. The detection module of claim 5,
the detection wire coil and the charging load are mutually inducted to generate first impedance;
the detection circuit is specifically used for generating a first working signal corresponding to the first impedance;
the sampling element is specifically configured to obtain a detection signal larger than a first reference value based on the first operating signal.
7. The detection module of claim 6, wherein the detection coil, when interacting with the heating load, generates a second impedance;
the detection circuit is specifically used for generating a second working signal corresponding to the second impedance;
the sampling element is specifically configured to obtain a detection signal smaller than a second reference value based on the second operating signal, where the second reference value is smaller than the first reference value.
8. The detection module of claim 1, further comprising:
and the power control circuit is connected with the detection wire coil and used for providing input signals required by the work of the detection wire coil according to preset time intervals.
9. The detection module of claim 8,
and the power control circuit provides an input signal to the detection wire coil according to a preset frequency.
10. An electrical device comprising:
the bearing shell is provided with a bearing surface;
the integrated modules are arranged in the bearing shell in parallel, correspond to different bearing areas of the bearing surface and have at least two working modes, wherein the integrated modules are used for heating a load when working in a heating mode in the working modes and/or wirelessly supplying power to the load when working in a wireless power transmission mode in the working modes;
the detection module as claimed in any one of claims 1 to 9, configured to detect whether there is a load and/or a load type in the load bearing area by mutual inductance with a load in the load bearing areas of a plurality of the integrated modules.
11. The electrical device according to claim 10,
and the detection module is used for detecting whether the load and/or the load type exist in the bearing area of the integrated module.
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