CN117792357A - Electronic switch system - Google Patents
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- CN117792357A CN117792357A CN202311848021.4A CN202311848021A CN117792357A CN 117792357 A CN117792357 A CN 117792357A CN 202311848021 A CN202311848021 A CN 202311848021A CN 117792357 A CN117792357 A CN 117792357A
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- 230000002452 interceptive effect Effects 0.000 description 3
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- 238000000576 coating method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The invention relates to the technical field of switches and discloses an electronic switch system which comprises a control unit, a first overcurrent protection unit, a switch tube, a first electronic switch unit and a second electronic switch unit; each switching tube is electrically connected with a driving unit respectively; when the control unit is used, the control unit processes the first switching signal and the second switching signal generated by the first electronic switching unit and the second electronic switching unit, so that the level state of the interaction terminal electrically connected with the control unit by the first overcurrent protection unit is changed, and a driving signal is sent to the corresponding driving unit, so that the switching tube is controlled to be conducted, and the external load control connected with the switching tube is realized; compared with a mechanical switch, the first switch signal and the second switch signal generated by the first electronic switch unit and the second electronic switch unit are input to the control unit for processing, and the waterproof problem and the problem of poor contact of the contacts, which are faced when the mechanical switch is used, are not worried.
Description
Technical Field
The invention relates to the technical field of switches, in particular to an electronic switch system.
Background
At present, an operation switch is deployed in various application occasions for people to operate, and the operation condition of peripheral components or loads is controlled by the operation switch. However, most of the existing operation switches are mechanical switches, wherein the mechanical switches realize switch control by controlling the on and off of contacts of the mechanical switches, but the contacts of the mechanical switches are affected by manufacturing cost, the materials of the contacts of the mechanical switches are uneven, and poor contact problems exist in the contacts with poor quality, so that the service life of the existing mechanical switches is lower.
In addition, most of the existing mechanical switches are not waterproof, the existing mechanical switches are easily affected by the use environment to fail in actual use, even if waterproof sleeves and waterproof coatings are added to the switches, even electric shock materials are changed into more expensive materials to solve the waterproof problem, but contacts of the mechanical switches are required to be operated when being opened each time, and the contacts of the mechanical switches are in a closed state for a long time after being closed each time, the waterproof sleeves are damaged along with the increase of the operation times, the waterproof coatings fall off, and the mechanical switches are still affected by the environment to fail.
Disclosure of Invention
In view of the shortcomings of the background art, the present invention provides an electronic switching system.
In order to solve the technical problems, the invention provides the following technical scheme: an electronic switching system comprises a control unit, at least one first overcurrent protection unit, at least one switching tube, at least one first electronic switching unit and at least one second electronic switching unit; each switching tube is electrically connected with a driving unit respectively;
the number of the overcurrent protection units is the same as that of the first electronic switch units, and the overcurrent protection units are in one-to-one correspondence; the number of the switching tubes is the same as that of the second electronic switching units, and the switching tubes are in one-to-one correspondence;
each first electronic switching unit is electrically connected with the control unit and is used for inputting a first switching signal with a high level or a low level to the control unit;
the interaction terminal of the control unit is electrically connected with the first overcurrent protection unit, and the level state of the interaction terminal which is electrically connected with the control unit and corresponds to the first overcurrent protection unit is controlled based on the first switch signal;
each second electronic switching unit is electrically connected with the control unit and is used for inputting a second switching signal with high level or low level to the control unit;
the control unit is electrically connected with the switching tube through the driving unit, and sends a driving signal to the corresponding driving unit based on the second switching signal, and the driving unit responds to the driving signal to control the corresponding switching tube to be conducted.
In a certain embodiment, the first electronic switch unit includes a resistor R1, a resistor R2 and an electronic switch K1, one end of the resistor R1 is electrically connected to the working power supply, the other end of the resistor R1 is electrically connected to one end of the resistor R2 and one end of the electronic switch K1, the other end of the electronic switch K1 is grounded, and the other end of the resistor R2 is electrically connected to the control unit.
In a certain embodiment, the control unit configures an operating state for each first electronic switch unit, where the operating states include an on state and an off state, and when the electronic switch K1 is pressed down each time, the control unit changes the operating state of the first electronic switch unit, and an initial operating state of each first electronic switch unit is the on state;
and the control unit sets the level state of the interaction terminal, which is electrically connected with the control unit, of the overcurrent protection unit corresponding to the first electronic switch unit to be a low level state when the working state of the first electronic switch unit is a closed state.
In a certain embodiment, the second electronic switch unit includes a resistor R3, a resistor R4, and an electronic switch K2, one end of the resistor R3 is electrically connected to the working power supply, the other end of the resistor R3 is electrically connected to one end of the resistor R4 and one end of the electronic switch K2, the other end of the electronic switch K2 is grounded, and the other end of the resistor R4 is electrically connected to the control unit.
In a certain embodiment, the control unit configures an operating state for each second electronic switch unit, where the operating states include an on state and an off state, and when the electronic switch K2 is pressed down each time, the control unit changes the operating state of the second electronic switch unit, and an initial operating state of each second electronic switch unit is the on state;
and the control unit sends a high-level driving signal to a driving unit connected with a switching tube corresponding to the second electronic switching unit when the working state of the second electronic switching unit is a closed state.
In a certain embodiment, the driving unit includes a resistor R9, a resistor R10, and a resistor R30, one end of the resistor R9 is electrically connected to the control unit, the other end of the resistor R9 is electrically connected to one end of the resistor R10 and the second connection end of the switching tube, the other end of the resistor R10 is electrically connected to the third connection end of the switching tube and one end of the resistor R30, and the other end of the resistor R30 is grounded.
In a certain embodiment, the switch tube is an NMOS tube, the gate of the NMOS tube is the second connection end of the switch tube, the source of the NMOS tube is the third connection end of the switch tube, and the drain of the NMOS tube is the first connection end of the switch tube.
In a certain embodiment, the other end of the resistor R10 is further connected to a second overcurrent protection unit, and the second overcurrent protection unit is configured to send an overcurrent protection signal to the control unit when the current flowing through the resistor R30 exceeds the overcurrent threshold, and the control unit stops sending the driving signal to the corresponding driving unit based on the overcurrent protection signal.
In an embodiment, the second overcurrent protection unit includes a resistor R11, a resistor R12, and a triode V10, one end of the resistor R11 is electrically connected to the other end of the resistor R10, the other end of the resistor R11 is electrically connected to the base of the triode V10, the emitter of the triode V10 is grounded, the collector of the triode V10 is electrically connected to one end of the resistor R12 and the control unit, respectively, and the other end of the resistor R12 is electrically connected to the working power supply.
In an embodiment, the first overcurrent protection unit includes a zener diode DT1, a zener diode DT2, and a resistor RT1, the control unit is electrically connected to a cathode of the zener diode DT1 and one end of the resistor RT1, an anode of the zener diode DT1 is electrically connected to an anode of the zener diode DT2, a cathode of the zener diode DT2 is grounded, and the other end of the resistor RT1 is electrically connected to an external device.
Compared with the prior art, the invention has the following beneficial effects: the invention processes the first switch signal generated by the first electronic switch unit through the control unit, thereby changing the level state of the interaction terminal electrically connected with the first overcurrent protection unit and the control unit, and changing the signal input state of the external equipment connected with the interaction terminal through changing the level state of the interaction terminal of the control unit, thereby realizing switch control;
in addition, the control unit processes a second switching signal generated by the second electronic switching unit so as to send a driving signal to the corresponding driving unit, thereby controlling the switching tube to be conducted and further realizing external load control connected with the switching tube;
compared with a mechanical switch, the switch control and external load control are realized by inputting the first switch signal and the second switch signal generated by the first electronic switch unit and the second electronic switch unit into the control unit for processing, and the waterproof problem and the problem of poor contact of the contacts, which are faced when the mechanical switch is used, are not worried.
Drawings
FIG. 1 is a schematic view of a structure of the present invention in an embodiment;
fig. 2 is a circuit diagram of one implementation of the present invention in an embodiment.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only the structures which are relevant to the invention.
As shown in fig. 1, an electronic switching system includes a control unit 1, a first overcurrent protection unit 4, a switching tube 6, a first electronic switching unit 2, and a second electronic switching unit 3; the switch tubes 6 are respectively and electrically connected with a driving unit 5;
the first electronic switching unit 2 is electrically connected with the control unit 1 and is used for inputting a first switching signal with a high level or a low level to the control unit 1;
the interaction terminal of the control unit 1 is electrically connected with the first overcurrent protection unit 4, and the level state of the interaction terminal electrically connected with the control unit 1 corresponding to the first overcurrent protection unit 4 is controlled based on the first switch signal;
the second electronic switching unit 3 is electrically connected with the control unit 1 and is used for inputting a second switching signal with a high level or a low level to the control unit 1;
the control unit 1 is electrically connected to the switching tube 6 through the driving unit 5, and transmits a driving signal to the corresponding driving unit 5 based on the second switching signal, and the driving unit 5 controls the corresponding switching tube 6 to be turned on in response to the driving signal.
In actual use, the invention processes the first switch signal generated by the first electronic switch unit 2 through the control unit 1, thereby changing the level state of the interactive terminal electrically connected with the control unit 1 by the first overcurrent protection unit 4, and realizing the change of the signal input state of the external equipment connected with the interactive terminal by changing the level state of the interactive terminal of the control unit 1, thereby realizing the switch control;
in addition, the control unit 1 processes the second switching signal generated by the second electronic switching unit 3, so as to send a driving signal to the corresponding driving unit 5, thereby controlling the switching tube 6 to be conducted and further realizing the external load control connected with the switching tube 6;
compared with a mechanical switch, the invention inputs the first switch signal and the second switch signal generated by the first electronic switch unit 2 and the second electronic switch unit 3 into the control unit 1 for processing, thereby realizing switch control and external load control without worrying about the waterproof problem and the poor contact of the contacts when the mechanical switch is used.
In actual use, the number of the first electronic switch units 2 and the number of the overcurrent protection units 4 can be increased according to actual requirements, wherein the number of the overcurrent protection units 4 is required to be the same as the number of the first electronic switch units 2 and corresponds to one another; meanwhile, the number of the switching tubes 6 and the second electronic switching units 3 can be increased according to actual requirements, wherein the number of the switching tubes 6 is required to be the same as the number of the second electronic switching units 3 and corresponds to one another.
Specifically, in the present embodiment, when the driving signal is at a high level, the driving unit 5 drives the switching tube 6 to be turned on.
Specifically, in this embodiment, the control unit 1 includes a single-chip microcomputer, and the model of the single-chip microcomputer can be selected according to actual requirements, and the model of the single-chip microcomputer is LKS32MC033H6P8.
In this embodiment, as shown in fig. 2, a control unit 1 includes a model singlechip IC1, a first electronic switch unit 2 includes a resistor R1, a resistor R2, and an electronic switch K1, one end of the resistor R1 is electrically connected to a working power supply, the other end of the resistor R1 is electrically connected to one end of the resistor R2 and one end of the electronic switch K1, the other end of the electronic switch K1 is grounded, and the other end of the resistor R2 is electrically connected to pin 1 of the singlechip IC 1.
When the electronic switch K1 is turned on in actual use, the first electronic switch unit 2 inputs a low-level signal to the singlechip IC 1; when the electronic switch K1 is turned off, the first electronic switch unit 2 inputs a high-level signal to the single chip IC 1.
In this embodiment, the control unit 1 configures a working state for each first electronic switch unit 2, where the working state includes an on state and an off state, and when the electronic switch K1 is pressed down each time, the control unit 1 changes the working state of the first electronic switch units 2, and an initial working state of each first electronic switch unit 2 is the on state;
when the operation state of the first electronic switch unit 2 is the closed state, the control unit 1 sets the level state of the interaction terminal electrically connected to the control unit 1 by the overcurrent protection unit 4 corresponding to the first electronic switch unit 2 to the low level state. When the operation state of the first electronic switching unit 2 is the on state, the control unit 1 sets the level state of the interaction terminal, which is electrically connected to the control unit 1, of the overcurrent protection unit 4 corresponding to the first electronic switching unit 2 to no longer be the low level state.
In fig. 2, the second electronic switch unit 3 includes a resistor R3, a resistor R4, and an electronic switch K2, where one end of the resistor R3 is electrically connected to the working power supply, the other end of the resistor R3 is electrically connected to one end of the resistor R4 and one end of the electronic switch K2, the other end of the electronic switch K2 is grounded, and the other end of the resistor R4 is electrically connected to pin No. 2 of the IC 1.
When the electronic switch K2 is turned on in actual use, the second electronic switch unit 3 inputs a low-level signal to the singlechip IC 1; when the electronic switch K2 is turned off, the second electronic switch unit 3 inputs a high-level signal to the single chip IC 1.
Likewise, the control unit 1 configures an operating state for each second electronic switch unit 3, the operating state including an on state and an off state, and when the electronic switch K2 is pressed down each time, the control unit 1 changes the operating state of the second electronic switch units 3, and the initial operating state of each second electronic switch unit 3 is the on state;
when the operation state of the second electronic switching unit 3 is the closed state, the control unit 1 transmits a high-level drive signal to the drive unit 5 connected to the switching tube 6 corresponding to the second electronic switching unit 3. When the operating state of the second electronic switching unit 3 is the on state, the control unit 1 no longer transmits a high-level driving signal to the driving unit 5 connected to the switching tube 6 corresponding to the second electronic switching unit 3.
In this embodiment, the electronic switches K1 and K2 may be electronic switching transistors such as thyristors, transistors, field effect transistors, or thyristors.
Specifically, in fig. 2, the driving unit 5 includes a resistor R9, a resistor R10, and a resistor R30, one end of the resistor R9 is electrically connected to the control unit 1, the other end of the resistor R9 is electrically connected to one end of the resistor R10 and the second connection end of the switching tube 6, the other end of the resistor R10 is electrically connected to the third connection end of the switching tube 6 and one end of the resistor R30, and the other end of the resistor R30 is grounded.
Specifically, in fig. 2, the switching tube 6 is an NMOS tube V1, the gate of the NMOS tube V1 is the second connection end of the switching tube 6, the source of the NMOS tube V1 is the third connection end of the switching tube 6, and the drain V1 of the NMOS tube is the first connection end of the switching tube 6. In actual use, the first connection end of the switch tube 6 is used for being electrically connected with an external load, and the external load F1 can be controlled by controlling the on-off state of the switch tube 6.
In addition, in this embodiment, in order to avoid excessive current flowing through the external load F1, the second overcurrent protection unit 7 is further connected to the other end of the resistor R10, and the second overcurrent protection unit 7 is configured to send an overcurrent protection signal to the control unit when the current flowing through the resistor R30 exceeds the overcurrent threshold, and the control unit 1 stops sending the driving signal to the corresponding driving unit 5 based on the overcurrent protection signal.
Specifically, the second overcurrent protection unit 7 includes a resistor R11, a resistor R12, and a triode V10, one end of the resistor R11 is electrically connected with the other end of the resistor R10, the other end of the resistor R11 is electrically connected with the base electrode of the triode V10, the emitter electrode of the triode V10 is grounded, the collector electrode of the triode V10 is electrically connected with one end of the resistor R12 and the control unit, and the other end of the resistor R12 is electrically connected with the working power supply. Wherein the over-current threshold is set in accordance with transistor V10.
In actual use, when the current flowing through the resistor R30 is too large, the transistor V10 is turned on, and at this time, the signal input to the control unit 1 by the second overcurrent protection unit 7 is changed from the high level state to the low level state, thereby realizing the overcurrent detection.
In this embodiment, the working power supply is used to provide a working voltage of 5V.
Specifically, in fig. 2, the first overcurrent protection unit 4 includes a zener diode DT1, a zener diode DT2, and a resistor RT1, where the control unit 1 is electrically connected to a cathode of the zener diode DT1 and one end of the resistor RT1, an anode of the zener diode DT1 is electrically connected to an anode of the zener diode DT2, a cathode of the zener diode DT2 is grounded, and the other end of the resistor RT1 is electrically connected to an external device. In actual use, an excessive current input to the control unit 1 can be avoided by the first overcurrent protection unit 4.
The present invention has been made in view of the above-described circumstances, and it is an object of the present invention to provide a portable electronic device capable of performing various changes and modifications without departing from the scope of the technical spirit of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (10)
1. An electronic switching system, comprising a control unit, at least one first overcurrent protection unit, at least one switching tube, at least one first electronic switching unit and at least one second electronic switching unit; each switching tube is electrically connected with a driving unit respectively;
the number of the overcurrent protection units is the same as that of the first electronic switch units, and the overcurrent protection units are in one-to-one correspondence; the number of the switching tubes is the same as that of the second electronic switching units, and the switching tubes are in one-to-one correspondence;
each first electronic switching unit is electrically connected with the control unit and is used for inputting a first switching signal with a high level or a low level to the control unit;
the interaction terminal of the control unit is electrically connected with the first overcurrent protection unit, and the level state of the interaction terminal which is electrically connected with the control unit and corresponds to the first overcurrent protection unit is controlled based on the first switch signal;
each second electronic switching unit is electrically connected with the control unit and is used for inputting a second switching signal with high level or low level to the control unit;
the control unit is electrically connected with the switching tube through the driving unit, and sends a driving signal to the corresponding driving unit based on the second switching signal, and the driving unit responds to the driving signal to control the corresponding switching tube to be conducted.
2. The electronic switching system according to claim 1, wherein the first electronic switching unit comprises a resistor R1, a resistor R2 and an electronic switch K1, one end of the resistor R1 is used for being electrically connected with an operating power supply, the other end of the resistor R1 is electrically connected with one end of the resistor R2 and one end of the electronic switch K1 respectively, the other end of the electronic switch K1 is grounded, and the other end of the resistor R2 is electrically connected with the control unit.
3. An electronic switching system according to claim 2, wherein the control unit configures an operation state for each first electronic switching unit, the operation state including an on state and an off state, the control unit changing the operation state of the first electronic switching unit each time the electronic switch K1 is pressed, the initial operation state of each first electronic switching unit being an on state;
and when the working state of the first electronic switch unit is a closed state, the control unit sets the level state of the interaction terminal, which is electrically connected with the control unit, of the overcurrent protection unit corresponding to the first electronic switch unit to be a low level state.
4. An electronic switching system according to claim 1, wherein the second electronic switching unit comprises a resistor R3, a resistor R4 and an electronic switch K2, one end of the resistor R3 is electrically connected to the working power supply, the other end of the resistor R3 is electrically connected to one end of the resistor R4 and one end of the electronic switch K2, the other end of the electronic switch K2 is grounded, and the other end of the resistor R4 is electrically connected to the control unit.
5. The electronic switching system according to claim 4, wherein the control unit configures an operation state for each of the second electronic switching units, the operation state including an on state and an off state, the control unit changing the operation state of the second electronic switching unit each time the electronic switch K2 is pressed, the initial operation state of each of the second electronic switching units being an on state;
and when the working state of the second electronic switch unit is a closed state, the control unit sends a high-level driving signal to a driving unit connected with a switch tube corresponding to the second electronic switch unit.
6. An electronic switching system according to any one of claims 1-5, wherein the driving unit comprises a resistor R9, a resistor R10 and a resistor R30, one end of the resistor R9 is electrically connected to the control unit, the other end of the resistor R9 is electrically connected to one end of the resistor R10 and the second connection end of the switching tube, the other end of the resistor R10 is electrically connected to the third connection end of the switching tube and one end of the resistor R30, respectively, and the other end of the resistor R30 is grounded.
7. The electronic switching system of claim 6, wherein the switching tube is an NMOS tube, a gate of the NMOS tube is a second connection terminal of the switching tube, a source of the NMOS tube is a third connection terminal of the switching tube, and a drain of the NMOS tube is a first connection terminal of the switching tube.
8. An electronic switching system according to claim 6, wherein a second overcurrent protection unit is further connected to the other end of the resistor R10, and the second overcurrent protection unit is configured to send an overcurrent protection signal to the control unit when the current flowing through the resistor R30 exceeds the overcurrent threshold, and the control unit stops sending the driving signal to the corresponding driving unit based on the overcurrent protection signal.
9. The electronic switching system according to claim 8, wherein the second overcurrent protection unit comprises a resistor R11, a resistor R12 and a triode V10, one end of the resistor R11 is electrically connected with the other end of the resistor R10, the other end of the resistor R11 is electrically connected with a base electrode of the triode V10, an emitter electrode of the triode V10 is grounded, a collector electrode of the triode V10 is electrically connected with one end of the resistor R12 and the control unit respectively, and the other end of the resistor R12 is electrically connected with the working power supply.
10. An electronic switching system according to any one of claims 1-5, wherein the first overcurrent protection unit comprises a zener diode DT1, a zener diode DT2 and a resistor RT1, the control unit is electrically connected to a cathode of the zener diode DT1 and one end of the resistor RT1, an anode of the zener diode DT1 is electrically connected to an anode of the zener diode DT2, a cathode of the zener diode DT2 is grounded, and the other end of the resistor RT1 is electrically connected to an external device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311848021.4A CN117792357A (en) | 2023-12-28 | 2023-12-28 | Electronic switch system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311848021.4A CN117792357A (en) | 2023-12-28 | 2023-12-28 | Electronic switch system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117792357A true CN117792357A (en) | 2024-03-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311848021.4A Pending CN117792357A (en) | 2023-12-28 | 2023-12-28 | Electronic switch system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117792357A (en) |
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2023
- 2023-12-28 CN CN202311848021.4A patent/CN117792357A/en active Pending
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