CN214380224U - Fill electric pile with power-off protection function - Google Patents
Fill electric pile with power-off protection function Download PDFInfo
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- CN214380224U CN214380224U CN202120386170.3U CN202120386170U CN214380224U CN 214380224 U CN214380224 U CN 214380224U CN 202120386170 U CN202120386170 U CN 202120386170U CN 214380224 U CN214380224 U CN 214380224U
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Abstract
The utility model provides a fill electric pile with power-off protection function includes: the device comprises a detection circuit, a charging circuit and a charging polar plate; the detection circuit comprises a detection circuit power supply, a first voltage-dividing resistor circuit and a second voltage-dividing resistor circuit, the detection circuit power supply is connected with one end of the first voltage-dividing resistor circuit, the other end of the first voltage-dividing resistor circuit is connected with one end of the second voltage-dividing resistor circuit, the other end of the second voltage-dividing resistor circuit is used for outputting detection voltage, and the input end of the charging polar plate is connected between the first voltage-dividing resistor circuit and the second voltage-dividing resistor circuit; the charging circuit comprises a charging circuit power supply, a field effect tube and a field effect tube control circuit, wherein the charging power supply is connected with the anode of the charging pile polar plate through the field effect tube, and the field effect tube control circuit controls the charged state of the anode of the charging pile polar plate through controlling the on-off state of the field effect tube according to the detection voltage. In this way, can make the polar plate that charges uncharged when the non-charges to the security that fills electric pile has been improved.
Description
Technical Field
Embodiments of the present disclosure relate generally to charging pile technology field, and more particularly, to charging pile with power-off protection function.
Background
The charging pile has the function similar to an oiling machine in a gas station, can be fixed on the ground or on the wall, is installed in public buildings (public buildings, shopping malls, public parking lots and the like) and residential district parking lots or charging stations, and can charge various types of robots according to different voltage levels.
Most automatic electric pile that fills of robot all has the charged problem of polar plate when not charging in the existing market, that is to say, when the robot did not charge, the polar plate that charges still has the electricity. Charging pile's the polar plate that charges when the non-charges is electrified, has a lot of potential safety hazards, for example if the external world has the metal to touch the polar plate carelessly, probably produces the short circuit, damages and fills electric pile, has the risk of firing even.
When the charging pile in the prior art is not charged, the charging polar plate is still electrified, and potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
According to the embodiment of the present disclosure, a charging pile with a power-off protection function is provided, which can improve the safety performance of the charging pile.
The utility model provides a fill electric pile with power-off protection function includes:
the device comprises a detection circuit, a charging circuit and a charging polar plate;
the detection circuit comprises a detection circuit power supply, a first voltage-dividing resistor circuit and a second voltage-dividing resistor circuit, wherein the detection circuit power supply is connected with one end of the first voltage-dividing resistor circuit, the other end of the first voltage-dividing resistor circuit is connected with one end of the second voltage-dividing resistor circuit, the other end of the second voltage-dividing resistor circuit is used for outputting detection voltage, and the positive pole of a charging pile pole plate of the charging pole plate is connected between the first voltage-dividing resistor circuit and the second voltage-dividing resistor circuit;
fill electric pile polar plate includes: the charging pile comprises a charging pile polar plate anode, a charging pile polar plate cathode and a transient diode; the positive electrode of the charging pile polar plate is connected with the other end of the first voltage dividing resistor circuit; the negative electrode of the charging pile polar plate is grounded; the positive pole of the charging pile pole plate is connected with the negative pole of the charging pile pole plate through a transient diode;
the charging circuit comprises a charging circuit power supply, a field effect tube and a field effect tube control circuit, the charging power supply passes through the field effect tube and is connected with the anode of the charging pile polar plate, and the field effect tube control circuit controls the charged state of the anode of the charging pile polar plate through controlling the on-off state of the field effect tube.
The above aspects and any possible implementations further provide an implementation in which the first voltage-dividing resistance circuit includes an anti-reverse diode D1 and a voltage-dividing resistor R1 connected in series; one end of the anti-reverse diode D1 is connected with the power supply of the detection circuit, and the other end of the divider resistor R1 is connected with one end of the second divider resistor circuit.
The aspect and any possible implementation described above further provide an implementation, where the second voltage-dividing resistor circuit includes a voltage-dividing resistor R2, a voltage-dividing resistor R6, a decoupling capacitor C1, and a current-limiting resistor R3;
one end of the voltage dividing resistor R2 is connected with the other end of the voltage dividing resistor R1, the other end of the voltage dividing resistor R2 is connected with one end of the voltage dividing resistor R6, the other end of the voltage dividing resistor R6 is connected with one end of the decoupling capacitor C1, the other end of the decoupling capacitor C1 is connected with one end of the current limiting resistor R3, the other end of the current limiting resistor R3 is used for outputting the detection voltage, one end of the current limiting resistor R3 is connected with the other end of the voltage dividing resistor R2, and the other end of the voltage dividing resistor R6 is grounded.
The above-described aspects and any possible implementations further provide an implementation in which the fet control circuit includes:
the charging pole plate comprises a charging pole plate enabling control end, a bias resistor R9, a switching triode Q2, a bias resistor R8, a bias resistor R7 and a bias resistor R10;
the charge polar plate enables the control end through biasing resistance R9 with switch triode Q2's base is connected, switch triode Q2's collecting electrode with biasing resistance R8's one end is connected, biasing resistance R8's the other end with field effect transistor's grid is connected, biasing resistance R7's one end with biasing resistance R8's the other end is connected, biasing resistance R7's the other end with the charging circuit power is connected, the charging circuit power with field effect transistor's source is connected, field effect transistor's drain electrode with fill electric pile polar plate positive pole and be connected, biasing resistance R10's one end with switch triode Q2's base is connected, biasing resistance R10's the other end with switch triode Q2's projecting pole is connected, switch triode Q2's projecting pole ground connection.
The above aspect and any possible implementation manner further provide an implementation manner, further including a single chip, where the single chip is configured to receive the detection voltage, analyze the detection voltage, determine whether the charging pad is in a load state, and control a level of an enabling control end of the charging pad according to the detection voltage.
It should be understood that what is described in this summary section is not intended to limit key or critical features of the embodiments of the disclosure, nor is it intended to limit the scope of the disclosure. Other features of the present disclosure will become apparent from the following description.
The utility model discloses a fill electric pile with power-off protection function, the polar plate that charges can be uncharged when the non-charges to the security that fills electric pile has been improved.
Drawings
The above and other features, advantages and aspects of various embodiments of the present disclosure will become more apparent by referring to the following detailed description when taken in conjunction with the accompanying drawings. In the drawings, like or similar reference characters designate like or similar elements, and wherein:
fig. 1 shows a circuit diagram of a detection circuit according to a first embodiment of the disclosure;
fig. 2 shows a circuit diagram of a charging circuit of a second embodiment of the disclosure;
fig. 3 shows a robot charging schematic diagram of a third embodiment of the present disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are some, but not all embodiments of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
In addition, the term "and/or" herein is only one kind of association relationship describing an associated object, and means that there may be three kinds of relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The charging pile with the power-off protection function provided by the embodiment of the disclosure can be used for charging a robot, and after a polar plate of the robot is disconnected with a charging polar plate of the charging pile, the power supply of a power supply to the charging polar plate of the charging pile is cut off, so that the charging polar plate of the charging pile is uncharged in a non-charging state, and further, the situation that a fire disaster caused by a short circuit is caused by the charged charging polar plate of the charging pile or the charging pile is damaged is avoided in the non-charging state, and the safety of the charging pile is improved.
Specifically, this electric pile that fills with power-off protection function of this disclosed embodiment includes: detection circuitry, charging circuit and charging polar plate.
Wherein, detection circuitry is used for detecting whether charging polar plate to filling electric pile is in charged state, specifically includes: the detection circuit power supply is connected with one end of the first divider resistor circuit, the other end of the first divider resistor circuit is connected with one end of the second divider resistor circuit, the other end of the second divider resistor circuit is used for outputting detection voltage, and the positive pole of the charging pile pole plate of the charging pole plate is connected between the first divider resistor circuit and the second divider resistor circuit. When the charging pole plate of the charging pile is in a non-charging state, the detection voltage is the voltage of the detection circuit power after voltage division through the first voltage-dividing resistor circuit and the second voltage-dividing resistor circuit, and when the charging pole plate of the charging pile is in a charging state, the detection voltage is the voltage of the detection circuit power after voltage division through the first voltage-dividing resistor circuit, the second voltage-dividing resistor circuit and a load in the robot, therefore, the detection voltage when the robot is in the non-charging state is higher than the detection voltage when the robot is in the charging state, and whether the charging pole plate of the charging pile is in the charging state can be identified.
The detection voltage is related to the voltage provided by the power supply of the detection circuit and the load in the first voltage-dividing resistor circuit, the second voltage-dividing resistor circuit and the robot, and specific values can be obtained through measurement or according to empirical values, which is not limited in this embodiment.
Charging circuit is used for providing voltage for the charging polar plate who fills electric pile for charge the robot, specifically include: the charging circuit comprises a charging circuit power supply, a field effect tube and a field effect tube control circuit, wherein the charging circuit power supply passes through the field effect tube and is connected with the anode of the charging pile polar plate, and the field effect tube control circuit controls the charged state of the anode of the charging pile polar plate through controlling the on-off state of the field effect tube.
When the robot needs to be charged, the field effect tube is opened through the field effect tube control circuit, so that the charging power supply is connected with the charging polar plate, charging voltage is provided for the robot, when the robot is not charged any more, the field effect tube is closed through the field effect tube control circuit, so that the charging power supply is disconnected with the charging polar plate, and at the moment, the charging polar plate is uncharged.
The charging pile with the power-off protection function of the embodiment can be uncharged when the charging pole plate is not charged, so that the safety of the charging pile is improved.
As an alternative embodiment of the present disclosure, as shown in fig. 1, it is a circuit diagram of a detection circuit according to a first embodiment of the present disclosure. In this embodiment, the first voltage-dividing resistor circuit includes an anti-reverse diode D1 and a voltage-dividing resistor R1 connected in series. The detection power supply can be protected by arranging the anti-reverse diode D1, and the circuit can be prevented from no-load by arranging the divider resistor R1, so that the safety is improved. The second divider resistance circuit includes divider resistance R2, divider resistance R6, decoupling capacitor C1 and current-limiting resistance R3, divider resistance R2's one end with divider resistance R1 of first divider resistance circuit is connected, divider resistance R2's the other end is connected divider resistance R6's one end with current-limiting resistance R3's one end, divider resistance R6's the other end with decoupling capacitor C1's one end is connected, decoupling capacitor C1's the other end with divider resistance R2's the other end is connected, current-limiting resistance R3's the other end output detection voltage. The filtering of the alternating current can be achieved by providing a decoupling resistor C1. The charging plate comprises a positive charging plate electrode and a negative charging plate electrode which are connected through a transient diode D3, wherein the negative charging plate electrode is connected with a protective ground.
The charging pile with the power-off protection function of the embodiment can achieve the technical effects similar to those of the embodiment, and repeated description is omitted here.
Fig. 2 is a circuit diagram of a charging circuit according to a second embodiment of the disclosure. In this embodiment, the field effect transistor control circuit includes:
the field effect transistor control circuit includes: the charging pole plate comprises a charging pole plate enabling control terminal, a bias resistor R9, a switching triode Q2, a bias resistor R8, a bias resistor R7 and a bias resistor R10.
The charge polar plate enables the control end through biasing resistance R9 with switch triode Q2's base is connected, switch triode Q2's collecting electrode with biasing resistance R8's one end is connected, biasing resistance R8's the other end with field effect transistor's grid is connected, biasing resistance R7's one end with biasing resistance R8's the other end is connected, biasing resistance R7's the other end with the charging circuit power is connected, the charging circuit power with field effect transistor's source is connected, field effect transistor's drain electrode with fill electric pile polar plate positive pole and be connected, biasing resistance R10's one end with switch triode Q2's base is connected, biasing resistance R10's the other end with switch triode Q2's projecting pole is connected, switch triode Q2's projecting pole ground connection. When the charging polar plate enables the control end to be in the high level, the field effect tube is opened greatly, and when the charging polar plate enables the control end to be in the low level, the field effect tube is closed.
The charging pile with the power-off protection function of the embodiment can achieve the technical effects similar to those of the embodiment, and repeated description is omitted here.
In addition, as an optional embodiment of the present disclosure, on the basis of the above embodiment, the present disclosure may further include a single chip microcomputer, where the single chip microcomputer is configured to receive the detection voltage, analyze the detection voltage, determine whether the charging pad is in a load state, and control a level of the charging pad enable control terminal according to the detection voltage.
Fig. 3 is a schematic diagram of charging a robot according to a third embodiment of the present disclosure. When the robot pole plate anode is not in contact with the charging pile pole plate anode, the voltage of 'VCC _ 5V' is detected to be 2.8V for example after the voltage division of R1, R2 and R6, the voltage is sent to the single chip microcomputer to be detected, the pole plate is in a non-contact state, the single chip microcomputer sets 'charging pole plate enable' to be at a low level, the MOS (field effect transistor) tube Q1 is closed, and the 'charging pile pole plate anode' is powered off at the moment.
When the robot pole plate anode is in contact with the charging pile pole plate anode, the robot part (the resistor R5 and the optocoupler J1) and the charging pile part (R2 and R6) are connected in parallel to divide the voltage of VCC _5V, the voltage of the contact of the detection pole plate is 1.8V, the voltage is sent into the singlechip to be detected, the pole plate is in contact with the detection pole plate, the singlechip sets the charging pole plate enable to be at a high level, the MOS transistor Q1 is opened, and the power of the charging pole plate anode is 24V + at the moment.
According to the technical scheme, whether the robot is in a charging contact state or not can be automatically detected in the automatic charging process of the robot, and the charging pole plate can be identified to be separated from and contacted. And can guarantee the polar plate is uncharged when not charging to ensure complete machine safety, avoid the trouble that the polar plate short circuit arouses even danger such as on fire.
It will be appreciated by those of ordinary skill in the art that although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.
Claims (5)
1. Fill electric pile with power-off protection function, its characterized in that includes:
the device comprises a detection circuit, a charging circuit and a charging polar plate;
the detection circuit comprises a detection circuit power supply, a first voltage-dividing resistor circuit and a second voltage-dividing resistor circuit, wherein the detection circuit power supply is connected with one end of the first voltage-dividing resistor circuit, the other end of the first voltage-dividing resistor circuit is connected with one end of the second voltage-dividing resistor circuit, the other end of the second voltage-dividing resistor circuit is used for outputting detection voltage, and the positive pole of a charging pile pole plate of the charging pole plate is connected between the first voltage-dividing resistor circuit and the second voltage-dividing resistor circuit;
fill electric pile polar plate includes: the charging pile comprises a charging pile polar plate anode, a charging pile polar plate cathode and a transient diode; the positive electrode of the charging pile polar plate is connected with the other end of the first voltage dividing resistor circuit; the negative electrode of the charging pile polar plate is grounded; the positive pole of the charging pile pole plate is connected with the negative pole of the charging pile pole plate through a transient diode;
the charging circuit comprises a charging circuit power supply, a field effect tube and a field effect tube control circuit, the charging circuit power supply passes through the field effect tube and is connected with the anode of the charging pile polar plate, and the field effect tube control circuit controls the charged state of the anode of the charging pile polar plate through controlling the on-off state of the field effect tube.
2. The charging pile with the power-off protection function according to claim 1, wherein the first voltage-dividing resistor circuit comprises an anti-reverse diode D1 and a voltage-dividing resistor R1 which are connected in series; one end of the anti-reverse diode D1 is connected with the power supply of the detection circuit, and the other end of the divider resistor R1 is connected with one end of the second divider resistor circuit.
3. The charging pile with the power-off protection function according to claim 2, wherein the second voltage-dividing resistor circuit comprises a voltage-dividing resistor R2, a voltage-dividing resistor R6, a decoupling capacitor C1 and a current-limiting resistor R3;
one end of the voltage dividing resistor R2 is connected with the other end of the voltage dividing resistor R1, the other end of the voltage dividing resistor R2 is connected with one end of the voltage dividing resistor R6, the other end of the voltage dividing resistor R6 is connected with one end of the decoupling capacitor C1, the other end of the decoupling capacitor C1 is connected with one end of the current limiting resistor R3, the other end of the current limiting resistor R3 is used for outputting the detection voltage, one end of the current limiting resistor R3 is connected with the other end of the voltage dividing resistor R2, and the other end of the voltage dividing resistor R6 is grounded.
4. The charging pile with power-off protection function according to claim 1, wherein the field effect transistor control circuit comprises:
the charging circuit comprises a charging polar plate enabling control end, a bias resistor R9, a switching triode Q2, a bias resistor R8, a bias resistor R7 and a bias resistor R10;
the charge polar plate enables the control end through biasing resistance R9 with switch triode Q2's base is connected, switch triode Q2's collecting electrode with biasing resistance R8's one end is connected, biasing resistance R8's the other end with field effect transistor's grid is connected, biasing resistance R7's one end with biasing resistance R8's the other end is connected, biasing resistance R7's the other end with the charging circuit power is connected, the charging circuit power with field effect transistor's source is connected, field effect transistor's drain electrode with fill electric pile polar plate positive pole and be connected, biasing resistance R10's one end with switch triode Q2's base is connected, biasing resistance R10's the other end with switch triode Q2's projecting pole is connected, switch triode Q2's projecting pole ground connection.
5. The charging pile with the power-off protection function according to any one of claims 1 to 4, characterized by further comprising a single chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120386170.3U CN214380224U (en) | 2021-02-19 | 2021-02-19 | Fill electric pile with power-off protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120386170.3U CN214380224U (en) | 2021-02-19 | 2021-02-19 | Fill electric pile with power-off protection function |
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| Publication Number | Publication Date |
|---|---|
| CN214380224U true CN214380224U (en) | 2021-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120386170.3U Active CN214380224U (en) | 2021-02-19 | 2021-02-19 | Fill electric pile with power-off protection function |
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| CN (1) | CN214380224U (en) |
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2021
- 2021-02-19 CN CN202120386170.3U patent/CN214380224U/en active Active
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