CN210075225U - Magnetic isolation communication circuit and cooker - Google Patents
Magnetic isolation communication circuit and cooker Download PDFInfo
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- CN210075225U CN210075225U CN201920984808.6U CN201920984808U CN210075225U CN 210075225 U CN210075225 U CN 210075225U CN 201920984808 U CN201920984808 U CN 201920984808U CN 210075225 U CN210075225 U CN 210075225U
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Abstract
An embodiment of the utility model provides a communication circuit and cooking utensil are kept apart to magnetism, include: the communication assembly comprises a PCB, and a first coil panel Q1 and a second coil panel Q2 which are arranged on the same side of the PCB, wherein the first coil panel Q1 and the second coil panel Q2 are nested in the same plane, and a space exists between the wiring of the first coil panel Q1 and the wiring of the second coil panel Q2; the first coil disk Q1 is connected with the data transmitting unit, and the second coil disk Q2 is connected with the data receiving unit; the first coil plate Q1 is used for generating a magnetic field under the action of the first current signal output by the data transmitting unit, and the second coil plate Q2 is used for generating a second current signal under the action of the magnetic field to be output to the data receiving unit.
Description
Technical Field
The embodiment of the utility model provides a relate to household electrical appliances technical field, especially relate to a magnetic isolation communication circuit and cooking utensil.
Background
The induction cooker is a common household appliance for heating, and with the continuous development of the related technology, a cooker arranged on the induction cooker can be controlled to obtain electric energy from the induction cooker and communicate with the induction cooker.
In the prior art, a mode of directly connecting the induction cooker and the cooker through a wire is adopted, so that the cooker and the induction cooker are directly communicated. In the communication process between the cookware and the induction cooker, in order to avoid various interferences, communication is generally performed in an isolated communication mode. The isolation communication is usually isolated by adopting an optical coupling isolation or magnetic isolation chip mode, or coils can be respectively arranged on the front surface and the back surface of the double-sided PCB for magnetic isolation.
However, the existing isolated communication method causes higher cost.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a communication circuit and cooking utensil are kept apart to magnetism to reduce the cost of keeping apart communication.
In a first aspect, the present invention provides a magnetic isolation communication circuit, including: data transmission unit, data reception unit and communication module, wherein
The communication assembly comprises a PCB (printed circuit board), and a first coil panel Q1 and a second coil panel Q2 which are arranged on the same side of the PCB, wherein the first coil panel Q1 and the second coil panel Q2 are nested in the same plane, and a space exists between the wiring of the first coil panel Q1 and the wiring of the second coil panel Q2;
the first coil disk Q1 is connected with the data transmitting unit, and the second coil disk Q2 is connected with the data receiving unit;
the first coil plate Q1 is used for generating a magnetic field under the action of a first current signal output by the data transmitting unit, and the second coil plate Q2 is used for generating a second current signal under the action of the magnetic field to be output to the data receiving unit.
Through the magnetic isolation communication circuit comprising a data sending unit, a data receiving unit and a communication component, the communication component comprises a PCB board, a first coil disc Q1 and a second coil disc Q2 which are arranged on the same side of the PCB board, realizes the direct wiring on a single-layer PCB board, does not need the wiring on a double-layer PCB board, reduces the production cost, the first coil panel Q1 and the second coil panel Q2 are nested in the same plane, and a space exists between the trace of the first coil panel Q1 and the trace of the second coil panel Q2, thereby, good magnetic isolation of the first coil disc Q1 from the second coil disc Q2 is realized, and the space occupied by the communication assembly is saved by the mutual nesting way, the first coil panel Q1 is connected to a data transmitting unit, the second coil panel Q2 is connected to a data receiving unit, and the data receiving unit can achieve magnetic isolation communication by a current pulse signal.
In one possible design, a first connection part is connected to an inner end point of the first coil disc Q1, and the first connection part and an outer end point of the first coil disc Q1 are respectively connected to the data transmission unit;
the inner end point of the second coil disc Q2 is connected with a second connecting part, and the second connecting part and the outer end point of the second coil disc Q2 are respectively connected with the data receiving unit;
the first connecting portion and the second connecting portion are jumper wires or patch zero ohm resistors.
The jumper can cross over the coil panel without contacting the coil panel, the patch zero ohm resistor can be called as a cross-over resistor, the zero ohm resistor cannot interfere or interact with the disk body of the first coil panel or the disk body of the second coil panel, magnetic isolation of the first coil panel and the second coil panel is guaranteed through the jumper or the patch zero ohm resistor, the first coil panel can be connected with the data sending unit, and the second coil panel is connected with the data receiving unit.
In one possible design, the first coil disk Q1 and the second coil disk Q2 are both circular coil disks, or
The first coil disk Q1 and the second coil disk Q2 are both square coil disks.
Through setting up circular coil panel and square coil panel, can guarantee under the great condition of first coil panel and second coil panel area, and the space that occupies is less to the wiring space of first coil panel and second coil panel has been saved.
In one possible design, the data transmission unit includes: a first microcontroller, a unidirectional conduction circuit and a charge and discharge unit
The one-way conduction circuit is respectively connected with the first microcontroller and the charge and discharge unit, and the charge and discharge unit is also connected with the first coil panel Q1.
Can produce communication signal through first microcontroller, can provide the electric energy to first coil panel Q1 through the one-way circuit that switches on, and can prevent the electric current backward flow that first coil panel Q1 discharged to first microcontroller, cause the influence to first microcontroller's work, this charge-discharge unit can realize the charge-discharge of first coil panel Q1, avoids the interference of first coil panel Q1 charge-discharge to external world.
In one possible design, the unidirectional conducting circuit is a transistor P1, the transistor P1 is an NPN-type transistor, and the charging and discharging unit includes a diode D3 and a resistor R5;
the base of the triode P1 is connected with the first microcontroller, the collector of the triode P1 is connected with the first coil panel Q1, and the emitter of the triode P1 is grounded;
the anode of the diode D3 is connected with the first coil panel Q1, and the cathode of the diode D3 is connected with the resistor R5;
the resistor R5 is connected to the diode D3 and the first coil disc Q1, respectively.
The triode is selected as the unidirectional conduction circuit, unidirectional conduction is realized only through one device, and therefore the circuit structure is simplified, the magnetic isolation communication circuit is simple in structure and easy to realize, and cost is saved. By selecting the diode and the resistor as the discharge circuit, the discharge is safe and reliable.
In one possible design, the data receiving unit includes: a resistor voltage divider circuit, a diode voltage limiting circuit and a second microcontroller, wherein
The resistance voltage division circuit is respectively connected with the second coil plate Q2 and the diode voltage limiting circuit;
the diode voltage limiting circuit is also connected with the second microcontroller.
Through resistance bleeder circuit and diode voltage limiting circuit for the voltage that second coil panel Q2 produced when transmitting to the second microcontroller, can step down steady voltage to suitable voltage, guaranteed the normal work of second microcontroller.
In a second aspect, the present invention provides a cooking appliance comprising a magnetically isolated communication circuit as described above in the first aspect or in various possible designs of the first aspect.
The cooker comprises a magnetic isolation communication circuit, the magnetic isolation communication circuit comprises a data sending unit, a data receiving unit and a communication component, the communication component comprises a PCB board and a first coil panel Q1 and a second coil panel Q2 which are arranged on the same side of the PCB board, direct wiring on a single-layer PCB board is realized, wiring on a double-layer PCB board is not needed, the production cost of the cooker is reduced, the first coil panel Q1 and the second coil panel Q2 are nested in the same plane, a space exists between a wiring of the first coil panel Q1 and a wiring of the second coil panel Q2, good magnetic isolation between the first coil panel Q1 and the second coil panel Q2 is realized, the space occupied by the communication component is saved in a mutually nested mode, the communication component is convenient to be arranged in the cooker, the first coil panel Q1 is connected with the data sending unit, and the second coil panel Q2 is connected with the data receiving unit, the data receiving unit can realize magnetic isolation communication through the current pulse signal.
In one possible design, the cooker comprises an induction cooker and a pot, the pot comprises the data transmission unit and the communication component, and the induction cooker comprises the data receiving unit.
In one possible design, the cooker comprises an induction cooker and a cooker, the cooker comprises the data sending unit, and the induction cooker comprises the data receiving unit and the communication assembly.
In a possible design, a first socket is arranged on the induction cooker, and a second socket matched with the first socket is arranged on the cooker.
Through setting up first interface and second interface, two equipment that have realized the separation can carry out the electricity after the contact and connect, not only simple structure still easily realizes.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a first schematic structural diagram of a magnetic isolation communication circuit provided by the present invention;
fig. 2 is a schematic structural diagram of a communication module provided by the present invention;
fig. 3 is a schematic structural diagram of a magnetic isolation communication circuit according to the present invention;
FIG. 4 is a schematic structural view of the cooker provided by the present invention;
fig. 5 is a schematic structural diagram of the cooker provided by the present invention.
Description of reference numerals:
10-a data transmission unit; 11-a first microcontroller;
12-a one-way conduction circuit; 13-a charge-discharge unit;
20-a data receiving unit; 21-a resistive divider circuit;
22-diode voltage limiting circuit; 23-a second microcontroller;
30-a communication component; 31-a PCB board;
32-a first connection; 33-second connection.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Fig. 1 is the utility model provides a first structural schematic diagram of magnetic isolation communication circuit, as shown in fig. 1, this magnetic isolation communication circuit includes: a data transmitting unit 10, a data receiving unit 20 and a communication component 30.
In this embodiment, the data sending unit 10 and the data receiving unit 20 may be located in the same device, or may be located in two devices, respectively, that is, the data sending unit 10 is located in one device, and the data receiving unit 20 is located in the other device.
The data transmitting unit 10 and the data receiving unit 20 are communicated with each other in a magnetic isolation manner through the communication component 30. The communication module 30 includes a Printed Circuit Board (PCB) 31, and a first coil panel Q1 and a second coil panel Q2 disposed on the same side of the PCB 31, wherein the first coil panel Q1 and the second coil panel Q2 are nested in the same plane, and a space exists between a trace of the first coil panel Q1 and a trace of the second coil panel Q2.
The first coil plate Q1 and the second coil plate Q2 can be directly wired on a single-layer PCB board. The first coil disk Q1 and the second coil disk Q2 are concentrically arranged on the same plane and are nested with each other. I.e., the trace of the first coil panel Q1 is nested within the trace of the second coil panel Q2 and the trace of the second coil panel Q2 is nested within the trace of the first coil panel Q1. It can be understood that two sides of the trace of first coil panel Q1 are the trace of second coil panel Q2, two sides of the trace of second coil panel Q2 are the trace of first coil panel Q1, and the trace of first coil panel Q1 and the trace of second coil panel Q2 are spaced apart.
In the present embodiment, in order to achieve communication isolation, there is a space between the trace of the first coil disk Q1 and the trace of the second coil disk Q2. In a possible implementation manner, the trace of the first coil panel Q1 is parallel to the trace of the second coil panel Q2, and the pitches of the adjacent trace of the first coil panel Q1 and the adjacent trace of the second coil panel Q2 are equal.
The first coil panel Q1 and the second coil panel Q2 may have the same shape, and may be circular, triangular, rectangular, rhombic, or equilateral polygonal, and the structure of the first coil panel Q1 and the second coil panel Q2 is not particularly limited in this embodiment. In a possible implementation manner, fig. 2 is a schematic structural diagram of the communication module provided by the present invention, as shown in fig. 2, the first coil panel Q1 and the second coil panel Q2 are both circular coil panels, or the first coil panel Q1 and the second coil panel Q2 are both square coil panels. Through setting up circular coil panel and square coil panel, can guarantee under the great condition of first coil panel and second coil panel area, and the space that occupies is less to the wiring space of first coil panel and second coil panel has been saved.
The first coil panel Q1 is connected to the data transmitting unit 10, and the second coil panel Q2 is connected to the data receiving unit 20; the first coil plate Q1 is used for generating a magnetic field under the action of a first current signal output by the data transmitting unit 10, and the second coil plate Q2 is used for generating a second current signal under the action of the magnetic field to be output to the data receiving unit 20.
In a specific implementation process, when the data transmitting unit 10 outputs a first current signal to the first coil panel Q1, the first coil panel Q1 generates a magnetic field under the action of the first current signal, and since the second coil panel Q2 is nested with the first coil panel Q1, the second coil panel Q2 is located in the magnetic field generated by the first coil panel Q1, and under the mutual inductance, the second coil panel Q2 generates a second current signal, which can be received by the data receiving unit 20.
When the data transmitting unit 10 stops outputting the first current signal to the first coil panel Q1, the first coil panel Q1 does not generate a magnetic field, the second coil panel Q2 does not generate the second current signal, and the data receiving unit 20 does not receive the second current signal.
Therefore, the data receiving unit 20 may receive the second current signal for a period of time, and may not receive the second current signal for a period of time, and the data receiving unit 20 may acquire data according to the current signal pulse.
The present embodiment provides a magnetic isolation communication circuit, which includes a data transmitting unit, a data receiving unit and a communication component, the communication component comprises a PCB board, a first coil disc Q1 and a second coil disc Q2 which are arranged on the same side of the PCB board, realizes the direct wiring on a single-layer PCB board, does not need the wiring on a double-layer PCB board, reduces the production cost, the first coil panel Q1 and the second coil panel Q2 are nested in the same plane, and a space exists between the trace of the first coil panel Q1 and the trace of the second coil panel Q2, thereby, good magnetic isolation of the first coil disc Q1 from the second coil disc Q2 is realized, and the space occupied by the communication assembly is saved by the mutual nesting way, the first coil panel Q1 is connected to a data transmitting unit, the second coil panel Q2 is connected to a data receiving unit, and the data receiving unit can achieve magnetic isolation communication by a current pulse signal.
As shown in fig. 1, the inner end of the first coil panel Q1 is connected to the first connection portion 32, and the outer ends of the first connection portion 32 and the first coil panel Q1 are respectively connected to the data transmission unit 10;
the inner end of the second coil disk Q2 is connected to a second connection portion 33, and the outer end of the second connection portion 33 and the outer end of the second coil disk Q2 are connected to the data receiving unit 20.
The first connection portion 32 and the second connection portion 33 are shown by dotted lines in fig. 1, and the first connection portion 32 and the second connection portion 33 are zero ohm resistors of jumpers or patches.
The jumper wire is actually a metal connecting wire for connecting two demand points of the PCB, the jumper wire can cross over the coil panel without contacting the coil panel, the zero ohm resistor of the patch can be called as a jumper resistor, the zero ohm resistor cannot interfere or interact with the disk body of the first coil panel or the disk body of the second coil panel, the magnetic isolation of the first coil panel and the second coil panel is guaranteed through the jumper wire or the zero ohm resistor of the patch, the first coil panel can be connected with the data sending unit, and the second coil panel is connected with the data receiving unit.
Fig. 3 is the utility model provides a magnetic isolation communication circuit's structural schematic diagram two, as shown in fig. 3, this data transmission unit 10 includes first microcontroller 11, one-way conduction circuit 12 and charge and discharge unit 13, and one-way conduction circuit 12 is connected with first microcontroller 11 and charge and discharge unit 13 respectively, and charge and discharge unit 13 still is connected with first coil panel Q1.
The first microcontroller 11 can communicate through IO1 according to a communication protocol, the IO1 outputs a first current signal corresponding to a high-low level pulse, the unidirectional circuit 12 is turned on at a high level and turned off at a low level, when the unidirectional circuit 12 is turned on, the charging and discharging unit 13 can charge the first coil panel Q1, and the first coil panel Q1 generates a magnetic field through a current, so that the second coil panel Q2 generates a second current signal. When the unidirectional conducting circuit 12 is turned off, the first coil panel Q1 is discharged through the charging and discharging unit 13, the first coil panel Q1 generates no current and no magnetic field, and the second coil panel Q2 generates no current.
This embodiment can produce communication signal through first microcontroller, can provide the electric energy to first coil panel Q1 through the one-way circuit that switches on, and can prevent the electric current backward flow that first coil panel Q1 discharged to first microcontroller, causes the influence to first microcontroller's work, and this charge-discharge unit can realize the charge-discharge of first coil panel Q1, avoids the interference of first coil panel Q1 charge-discharge to the external world.
As shown in fig. 3, in a possible implementation manner, the unidirectional conducting circuit 12 is a transistor P1, the transistor P1 is an NPN-type transistor, and the charging and discharging unit 13 includes a diode D3 and a resistor R5; the base electrode of the triode P1 is connected with the first microcontroller 11, the collector electrode of the triode P1 is connected with the first coil panel Q1, and the emitter electrode of the triode P1 is grounded; the anode of the diode D3 is connected with the first coil panel Q1, and the cathode of the diode D3 is connected with the resistor R5; the resistor R5 is connected to the diode D3 and the first coil panel Q1, respectively.
When IO1 outputs a high level, the transistor P1 is turned on, and a current is input to the first coil panel Q1 through the diode D3 and the resistor R5, so that the first coil panel Q1 generates a magnetic field. Optionally, the data transmitting unit 10 further includes a resistor R3 and a resistor R4, and the resistor R3 and the resistor R4 can play a role of current limiting protection.
When IO1 outputs a low level, transistor P1 turns off, and the first coil plate Q1 discharges through diode D3 and resistor R5.
The triode is selected as the unidirectional conduction circuit, unidirectional conduction is realized only through one device, and therefore the circuit structure is simplified, the magnetic isolation communication circuit is simple in structure and easy to realize, and cost is saved. By selecting the diode and the resistor as the discharge circuit, the discharge is safe and reliable.
As shown in fig. 3, the data receiving unit 20 includes: the microcontroller comprises a resistance voltage division circuit 21, a diode voltage limiting circuit 22 and a second microcontroller 23, wherein the resistance voltage division circuit 21 is respectively connected with a second coil panel Q2 and the diode voltage limiting circuit 22; the diode voltage limiting circuit 22 is also connected to a second microcontroller 23.
When the second coil disk Q2 generates a current under the magnetic field of the first coil disk Q1, the current passes through the resistance voltage-dividing circuit 21 and the diode voltage-limiting circuit 22 and then is input to the second microcontroller 23 through the IO 2. When no current is generated by the second coil disk Q2, then there is no current input to the second microcontroller 23, and the second microcontroller 23 can determine the data represented by the pulsed second current signal according to the communication protocol.
The resistor voltage-dividing circuit 21 may include a plurality of resistors, and the diode voltage-limiting circuit 22 may include a plurality of diodes, and the implementation of the resistor voltage-dividing circuit 21 and the diode voltage-limiting circuit 22 is not particularly limited in this embodiment. Fig. 3 shows a possible implementation manner, the resistor voltage-dividing circuit 21 includes a resistor R1 and a resistor R2, and the diode voltage-limiting circuit 22 includes a diode D1 and a diode D2.
Through the resistance bleeder circuit and the diode voltage limiting circuit, the voltage generated by the second coil plate Q2 can be reduced and stabilized to a proper voltage when being transmitted to the second microcontroller 23, thereby ensuring the normal work of the second microcontroller 23.
The present embodiment also provides a cooker including the magnetically isolated communication circuit as shown in fig. 1 to 3 above.
For example, the cooker includes an induction cooker and a pot. The electromagnetic oven and the cooker can realize magnetic isolation communication through the magnetic isolation communication circuit.
The induction cooker is a common household appliance for heating, and when the induction cooker works, high-frequency alternating current is utilized to pass through the coil panel so as to enable the bottom of a pot placed on the induction cooker to generate eddy current, so that the pot arranged on the induction cooker is heated.
The pan can transmit pan body temperature, liquid height, overflow information and the like to the induction cooker, and heating power is controlled by the induction cooker. The embodiment does not do the special restriction to the information that the pan transmitted for the electromagnetism stove, as long as the pan transmits the information for the electromagnetism stove, all is the protection category of the utility model.
In a possible implementation manner, fig. 4 is a schematic structural diagram of the cooker provided by the present invention. As shown in fig. 4, the cooker includes a pot including a data transmission unit 10 and a communication assembly 30, and an induction cooker including a data reception unit 20.
In this embodiment, the communication component 30 is disposed in a pot, for example, at the bottom of the pot, a first socket is disposed on the induction cooker, a second socket matched with the first socket is disposed on the bottom of the pot, and when the first socket is plugged with the second socket, the communication component in the pot can be connected with a data receiving unit in the induction cooker, so as to realize communication between the pot and the induction cooker.
In another possible implementation manner, fig. 5 is a schematic structural diagram of the cooker provided by the present invention. As shown in fig. 5, the pot includes a data transmission unit 10, and the induction cooker includes a data reception unit 20 and a communication assembly 30.
In this embodiment, the communication component 30 is disposed in the housing of the induction cooker, a first socket can be disposed on the panel of the induction cooker, a second socket disposed on the bottom of the cooker can be plugged with the first socket, and the communication component in the induction cooker can be connected with the data transmission unit in the cooker, so as to realize communication between the cooker and the induction cooker.
In this embodiment, the first socket and the second socket may be coupler interfaces, for example, and the implementation manner of the first socket and the second socket is not particularly limited in this embodiment.
In the specific implementation process, whether the communication component is arranged in the induction cooker or the cooker can be determined according to the design requirements of the cooker and the design requirements of the induction cooker, and the arrangement position of the communication component is not particularly limited in the embodiment.
This embodiment is through setting up first interface and second interface, and two equipment that have realized the separation can carry out the electricity after the contact and connect, and simple structure still easily realizes.
The cooker provided by the embodiment comprises a magnetic isolation communication circuit, the magnetic isolation communication circuit comprises a data sending unit, a data receiving unit and a communication component, the communication component comprises a PCB and a first coil panel Q1 and a second coil panel Q2 which are arranged on the same side of the PCB, the direct wiring of a single-layer PCB is realized, the wiring of a double-layer PCB is not required, the production cost of the cooker is reduced, the first coil panel Q1 and the second coil panel Q2 are nested in the same plane, a space exists between the wiring of the first coil panel Q1 and the wiring of the second coil panel Q2, the good magnetic isolation of the first coil panel Q1 and the second coil panel Q2 is realized, the space occupied by the communication component is saved in the nested mode, the communication component is convenient to be arranged in the cooker, the first coil panel Q1 is connected with the data sending unit, the second coil panel Q2 is connected with the data receiving unit, the data receiving unit can realize magnetic isolation communication through the current pulse signal.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the embodiments of the present invention, and not to limit the same; although embodiments of the present invention have been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.
Claims (10)
1. A magnetically isolated communication circuit, comprising: a data transmission unit (10), a data reception unit (20) and a communication assembly (30), wherein
The communication assembly (30) comprises a PCB (31) and a first coil panel Q1 and a second coil panel Q2 which are arranged on the same side of the PCB (31), wherein the first coil panel Q1 and the second coil panel Q2 are nested in the same plane, and a space exists between the routing of the first coil panel Q1 and the routing of the second coil panel Q2;
the first coil disk Q1 is connected with the data transmitting unit (10), and the second coil disk Q2 is connected with the data receiving unit (20);
the first coil plate Q1 is used for generating a magnetic field under the action of a first current signal output by the data transmitting unit (10), and the second coil plate Q2 is used for generating a second current signal under the action of the magnetic field to be output to the data receiving unit (20).
2. The circuit according to claim 1, wherein the inner end of the first coil disk Q1 is connected with a first connection part (32), and the outer end of the first coil disk Q1 and the first connection part (32) are respectively connected with the data transmission unit (10);
a second connection part (33) is connected to an inner end point of the second coil panel Q2, and the second connection part (33) and an outer end point of the second coil panel Q2 are respectively connected to the data receiving unit (20);
wherein the first connection portion (32) and the second connection portion (33) are jumper wires or patch zero ohm resistors.
3. The circuit of claim 1, wherein the first coil disk Q1 and the second coil disk Q2 are both circular coil disks, or
The first coil disk Q1 and the second coil disk Q2 are both square coil disks.
4. The circuit according to claim 1, characterized in that the data transmission unit (10) comprises: a first microcontroller (11), a unidirectional conducting circuit (12) and a charging and discharging unit (13), wherein
The unidirectional conducting circuit (12) is respectively connected with the first microcontroller (11) and the charging and discharging unit (13), and the charging and discharging unit (13) is further connected with the first coil panel Q1.
5. The circuit according to claim 4, characterized in that the unidirectional circuit (12) is a transistor P1, the transistor P1 is an NPN transistor, and the charging and discharging unit (13) comprises a diode D3 and a resistor R5;
the base of the triode P1 is connected with the first microcontroller (11), the collector of the triode P1 is connected with the first coil panel Q1, and the emitter of the triode P1 is grounded;
the anode of the diode D3 is connected with the first coil panel Q1, and the cathode of the diode D3 is connected with the resistor R5;
the resistor R5 is connected to the diode D3 and the first coil disc Q1, respectively.
6. The circuit according to claim 1, characterized in that the data receiving unit (20) comprises: a resistance voltage dividing circuit (21), a diode voltage limiting circuit (22) and a second microcontroller (23), wherein
The resistance voltage-dividing circuit (21) is respectively connected with the second coil plate Q2 and the diode voltage-limiting circuit (22);
the diode voltage limiting circuit (22) is also connected with the second microcontroller (23).
7. A cooker, characterized by comprising a magnetically isolated communication circuit as claimed in any of claims 1 to 6.
8. The cooker according to claim 7, characterized in that it comprises an induction cooker and a pot, the pot comprising the data transmission unit (10) and the communication assembly (30), the induction cooker comprising the data reception unit (20).
9. The cooker according to claim 7, characterized in that it comprises an induction cooker and a pot, the pot comprising the data transmission unit (10), the induction cooker comprising the data reception unit (20) and the communication assembly (30).
10. The cooker according to claim 8 or 9, wherein the induction cooker is provided with a first socket, and the cooker is provided with a second socket matching with the first socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920984808.6U CN210075225U (en) | 2019-06-27 | 2019-06-27 | Magnetic isolation communication circuit and cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920984808.6U CN210075225U (en) | 2019-06-27 | 2019-06-27 | Magnetic isolation communication circuit and cooker |
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