CN218183001U - Trigger protection system of electric vehicle connector - Google Patents
Trigger protection system of electric vehicle connector Download PDFInfo
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- CN218183001U CN218183001U CN202222019861.7U CN202222019861U CN218183001U CN 218183001 U CN218183001 U CN 218183001U CN 202222019861 U CN202222019861 U CN 202222019861U CN 218183001 U CN218183001 U CN 218183001U
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Abstract
The utility model discloses a trigger protection system of electric motor car connector includes: a connector; the electric spark suppression module is electrically connected with the input port of the connector; the overvoltage protection module is electrically connected with the electric spark suppression module; the trigger module is electrically connected with the overvoltage protection module; the power supply impedance module is electrically connected with the trigger module; the connector output port is electrically connected with the power supply impedance module; the utility model discloses a resistance R1 and resistance R2's partial pressure characteristic, the voltage to the connector input is reduced the voltage and is adjusted, make triode Q1 satisfy the conducting voltage value, in case the voltage of connector input surpasss triode Q1's conducting voltage, then triode Q1 is in the off-state, avoid connector overvoltage output, triode Q3 and triode Q4 carry out the impedance adjustment to adjacent port, when avoiding the output port of connector to switch on, influence the transmission of line port power, cause output power supply unstable.
Description
Technical Field
The utility model belongs to connector trigger protection field, concretely relates to trigger protection system of electric motor car connector.
Background
Electrical connectors, also commonly referred to as circuit connectors, are conductor devices that bridge two conductors in a circuit so that current or signals can flow from one conductor to the other; separable interfaces may be provided for connecting two sub-electronic systems, components for completing electrical connections between circuits or electronic machines, referred to as connectors, i.e., bridges between the two.
The existing electronic connector adopts the adjacent position to set up the port, isolate through the plastic slab between each port, avoid adjacent port short circuit discharge state to appear when carrying out the line installation, and when port contact failure appears, discharge phenomenon will appear, cause port oxidation damage, burn out the plastic slab even, cause each port to be in the short circuit state, and the temperature rise of port can be accelerated in the production of excessive pressure, make its plastic base generate heat and melt, cause connector interconnecting link contact failure, cause the unable normal driving of electric motor car.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model provides a trigger protection system of electric motor car connector to solve the above-mentioned problem that prior art exists.
The technical scheme is as follows: a trigger protection system for an electric vehicle connector, comprising:
a connector; transmitting the voltage acquired by the input port to an electric spark suppression module;
the electric spark suppression module is used for carrying out voltage division treatment through the resistor R1 and the resistor R2 and carrying out voltage reduction adjustment on the voltage input by the connector; and transmitting the regulated voltage to an overvoltage protection module;
the overvoltage protection module is used for protecting the instantaneous discharge phenomenon of the power-on of the transistor Q2 through the resistor R3 and the capacitor C2 and transmitting the over-protected voltage to the trigger module;
the trigger module is used for conducting and controlling the acquired voltage through the transistor Q2; and transmitting to a power supply impedance module;
and the power supply impedance module is used for carrying out impedance adjustment on the voltage output by the adjacent ports through the triode Q3 and the triode Q4 and outputting the adjusted voltage through the output port of the connector.
IN a further embodiment, the electric spark suppression module comprises a resistor R1, a diode D1, a resistor R2, a diode D2 and a triode Q1, wherein one end of the resistor R1 is connected with the input port IN of the connector, the negative end of the diode D2 and the collector end of the triode Q1 respectively; the other end of the resistor R1 is connected with the cathode end of the diode D1 and one end of the resistor R2 respectively; the positive end of the diode D1 is connected with a ground wire GND; the other end of the resistor R2 is connected with the positive end of the diode D2 and the base end of the triode Q1 respectively.
In a further embodiment, the overvoltage protection module includes a diode D3, a capacitor C1, a resistor R3, and a resistor R4, wherein a cathode terminal of the diode D3 is connected to a collector terminal of the transistor Q1, one terminal of the capacitor C1, and one terminal of the resistor R3, respectively; the positive end of the diode D3 is respectively connected with the ground wire GND, the other end of the capacitor C1 and one end of the resistor R4; the other end of the resistor R4 is connected with the other end of the resistor R3.
In a further embodiment, the trigger module includes a capacitor C2, a transistor Q2 and a capacitor C3, wherein one end of the capacitor C2 is connected to one end of the resistor R3 and the pin No. 1 of the transistor Q2, respectively; the No. 3 pin of the transistor Q2 is respectively connected with the other end of the capacitor C2, the other end of the resistor R3 and the emitter end of the triode Q1; a No. 2 pin of the transistor Q2 is connected with one end of a capacitor C3; the other end of the capacitor C3 is connected with a ground wire GND.
In a further embodiment, the power impedance module includes a diode D4, a diode D5, a resistor R5, a transistor Q3, a transistor Q4, and a resistor R6, wherein the positive terminal of the diode D4 is connected to the pin No. 2 of the transistor Q2, the positive terminal of the diode D5, and one end of the resistor R5, respectively; the other end of the resistor R5 is respectively connected with a collector terminal of the triode Q3 and a collector terminal of the triode Q4; the base electrode end of the triode Q4 is connected with the cathode end of the diode D4; the base end of the triode Q3 is connected with the cathode end of the diode D5; the emitter end of the triode Q3 is respectively connected with one end of the resistor R6 and a ground wire GND; the other end of the resistor R6 is connected with the emitter end of the triode Q4 and the output port OUT of the connector respectively.
IN a further embodiment, the connector comprises a plurality of said input ports IN and a plurality of said output ports OUT; the input port IN is connected with one end of the resistor R1; the output port OUT is connected with the emitter terminal of the triode Q4.
In a further embodiment, the electric spark suppressing module, the overvoltage protection module, the triggering module and the power supply impedance module are disposed between the input port and the output port of the connector and are electrically connected in sequence.
In a further embodiment, the transistor Q1, the transistor Q2, and the transistor Q3 are all NPN in type.
Has the advantages that: the utility model relates to an electric vehicle connector's trigger protection system, the partial pressure characteristic through resistance R1 and resistance R2, carry out the step-down adjustment to the voltage of connector input, make triode Q1 satisfy the conducting voltage value, in case the voltage of connector input surpasss triode Q1's conducting voltage, then triode Q1 is in the off-state, avoid connector overvoltage output, eliminate the transient discharge phenomenon that transistor Q2 got to the electricity again according to resistance R3 and electric capacity C2's combination, cause the production of electric spark, triode Q3 and triode Q4 carry out the power impedance adjustment to adjacent port, when avoiding the output port of connector to switch on, influence the transmission of circuit port power, cause the output power supply unstable.
Drawings
Fig. 1 is a circuit diagram of the present invention.
Detailed Description
A trigger protection system for an electric vehicle connector, comprising:
a connector; the connector comprises a plurality of said input ports IN and a plurality of said output ports OUT; the input port IN is connected with one end of the resistor R1; the output port OUT is connected with the emitter terminal of the triode Q4.
The electric spark suppression module is electrically connected with the input port IN of the connector;
the electric spark suppression module comprises a resistor R1, a diode D1, a resistor R2, a diode D2 and a triode Q1.
One end of the resistor R1 IN the electric spark suppression module is respectively connected with an input port IN of a connector, a negative electrode end of a diode D2 and a collector electrode end of a triode Q1; the other end of the resistor R1 is connected with the cathode end of the diode D1 and one end of the resistor R2 respectively; the positive end of the diode D1 is connected with a ground wire GND; the other end of the resistor R2 is connected with the positive end of the diode D2 and the base end of the triode Q1 respectively.
The overvoltage protection module is electrically connected with the electric spark suppression module;
the overvoltage protection module comprises a diode D3, a capacitor C1, a resistor R3 and a resistor R4.
The negative electrode end of the diode D3 in the overvoltage protection module is respectively connected with the collector end of the triode Q1, one end of the capacitor C1 and one end of the resistor R3; the positive end of the diode D3 is respectively connected with the ground wire GND, the other end of the capacitor C1 and one end of the resistor R4; the other end of the resistor R4 is connected with the other end of the resistor R3.
The trigger module is electrically connected with the overvoltage protection module;
the trigger module comprises a capacitor C2, a transistor Q2 and a capacitor C3.
One end of the capacitor C2 in the trigger module is respectively connected with one end of the resistor R3 and the No. 1 pin of the transistor Q2; the No. 3 pin of the transistor Q2 is respectively connected with the other end of the capacitor C2, the other end of the resistor R3 and the emitter end of the triode Q1; a No. 2 pin of the transistor Q2 is connected with one end of a capacitor C3; the other end of the capacitor C3 is connected with a ground wire GND.
The power supply impedance module is electrically connected with the trigger module;
the power supply impedance module comprises a diode D4, a diode D5, a resistor R5, a triode Q3, a triode Q4 and a resistor R6.
The positive end of the diode D4 in the power supply impedance module is respectively connected with the No. 2 pin of the transistor Q2, the positive end of the diode D5 and one end of the resistor R5; the other end of the resistor R5 is respectively connected with a collector terminal of the triode Q3 and a collector terminal of the triode Q4; the base electrode end of the triode Q4 is connected with the cathode end of the diode D4; the base end of the triode Q3 is connected with the cathode end of the diode D5; the emitter end of the triode Q3 is respectively connected with one end of the resistor R6 and a ground wire GND; and the other end of the resistor R6 is connected with the emitter end of the triode Q4 and the output port OUT of the connector respectively.
Description of the working principle: firstly, a resistor R1 is connected with an input port IN of a connector, a triode Q4 is connected with an output port OUT of the connector, at the moment, the resistor R1 and a resistor R2 are subjected to voltage division regulation, voltage reduction regulation is carried OUT on voltage input by the connector, the triode Q1 meets a conducting voltage value, and a diode D1 is reversely connected to protect the triode Q1 to operate safely;
when the voltage input by the connector exceeds the conducting voltage of the triode Q1, the triode Q1 is in a cut-off state at the moment, the voltage input by the connector is further judged to exceed the voltage value set by the connector, and the input port and the output port of the connector are in the cut-off state at the moment;
when the triode Q1 is electrified and conducted, the transistor Q2 is electrified and conducted at the moment;
the instantaneous discharge phenomenon that transistor Q2 got electric is eliminated in the combination of resistance R3 and electric capacity C2, avoid the production of electric spark, electric capacity C3 provides instantaneous conduction voltage to transistor Q2, electric capacity C3 provides reserve voltage to triode Q4, diode D4 and diode D5 unidirectional transmission, triode Q3 and triode Q4 carry out the power impedance adjustment to adjacent port, when the output port of avoiding the connector switches on, influence the transmission of adjacent port circuit power, cause the unstable phenomenon of output power.
As described above, although the present invention has been shown and described with reference to certain preferred embodiments, it should not be construed as limited to the present invention itself, but may be modified in various forms and details without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (5)
1. A trigger protection system for an electric vehicle connector, comprising:
a connector;
an electric spark suppression module electrically connected to the input port of the connector;
the overvoltage protection module is electrically connected with the electric spark suppression module;
the trigger module is electrically connected with the overvoltage protection module;
the power supply impedance module is electrically connected with the trigger module;
an output port of a connector electrically connected to the power impedance module;
the electric spark suppression module comprises a resistor R1, a diode D1, a resistor R2, a diode D2 and a triode Q1, wherein one end of the resistor R1 is respectively connected with an input port IN of the connector, a negative electrode end of the diode D2 and a collector end of the triode Q1; the other end of the resistor R1 is connected with the cathode end of the diode D1 and one end of the resistor R2 respectively; the positive end of the diode D1 is connected with a ground wire GND; the other end of the resistor R2 is respectively connected with the positive end of the diode D2 and the base end of the triode Q1.
2. The activation protection system for an electric vehicle connector as set forth in claim 1, wherein: the overvoltage protection module comprises a diode D3, a capacitor C1, a resistor R3 and a resistor R4, wherein the cathode end of the diode D3 is respectively connected with the collector end of the triode Q1, one end of the capacitor C1 and one end of the resistor R3; the positive end of the diode D3 is respectively connected with the ground wire GND, the other end of the capacitor C1 and one end of the resistor R4; the other end of the resistor R4 is connected with the other end of the resistor R3.
3. The activation protection system for an electric vehicle connector as set forth in claim 2, wherein: the trigger module comprises a capacitor C2, a transistor Q2 and a capacitor C3, wherein one end of the capacitor C2 is respectively connected with one end of a resistor R3 and a No. 1 pin of the transistor Q2; the No. 3 pin of the transistor Q2 is respectively connected with the other end of the capacitor C2, the other end of the resistor R3 and the emitter end of the triode Q1; a No. 2 pin of the transistor Q2 is connected with one end of a capacitor C3; the other end of the capacitor C3 is connected with a ground wire GND.
4. The activation protection system for an electric vehicle connector of claim 3, wherein: the power supply impedance module comprises a diode D4, a diode D5, a resistor R5, a triode Q3, a triode Q4 and a resistor R6, wherein the positive end of the diode D4 is respectively connected with the No. 2 pin of the transistor Q2, the positive end of the diode D5 and one end of the resistor R5; the other end of the resistor R5 is connected with a collector electrode end of the triode Q3 and a collector electrode end of the triode Q4 respectively; the base end of the triode Q4 is connected with the cathode end of the diode D4; the base end of the triode Q3 is connected with the cathode end of the diode D5; the emitter end of the triode Q3 is respectively connected with one end of the resistor R6 and a ground wire GND; the other end of the resistor R6 is connected with the emitter end of the triode Q4 and the output port OUT of the connector respectively.
5. The activation protection system for an electric vehicle connector of claim 4, wherein: the connector comprises a plurality of said input ports IN and a plurality of said output ports OUT; the input port IN is connected with one end of the resistor R1; and the output port OUT is connected with the emitter terminal of the triode Q4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222019861.7U CN218183001U (en) | 2022-08-02 | 2022-08-02 | Trigger protection system of electric vehicle connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222019861.7U CN218183001U (en) | 2022-08-02 | 2022-08-02 | Trigger protection system of electric vehicle connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218183001U true CN218183001U (en) | 2022-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222019861.7U Active CN218183001U (en) | 2022-08-02 | 2022-08-02 | Trigger protection system of electric vehicle connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218183001U (en) |
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2022
- 2022-08-02 CN CN202222019861.7U patent/CN218183001U/en active Active
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