CN216489887U - Backup power supply device for charging pile and charging pile applying same - Google Patents
Backup power supply device for charging pile and charging pile applying same Download PDFInfo
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- CN216489887U CN216489887U CN202122688224.4U CN202122688224U CN216489887U CN 216489887 U CN216489887 U CN 216489887U CN 202122688224 U CN202122688224 U CN 202122688224U CN 216489887 U CN216489887 U CN 216489887U
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Abstract
The utility model discloses a backup power supply device for a charging pile and the charging pile applying the backup power supply device, comprising: the backup power module stores energy when the main power supply works normally and supplies power to the target equipment after the power failure of the main power supply module; the boost module, the boost module includes: the control unit is used for inputting the sampling unit and outputting the sampling unit; the input sampling unit is used for sampling the voltage input by the backup power supply module and feeding back an input sampling signal to the boosting unit; the output sampling unit is used for sampling the output voltage and feeding back an output sampling signal to the boosting unit, and the control unit adjusts the output voltage according to the input sampling signal and the output sampling signal. Through utilizing the boost module to boost, before farad capacitor's voltage is less than the threshold value that the boost module started to boost, all can export a stable voltage, effectively solve current backup power supply output voltage unstability, the unable problem of restarting in a period after the power failure, improve equipment stability and work efficiency.
Description
Technical Field
The utility model relates to the technical field of backup power supplies, in particular to a backup power supply device for a charging pile and the charging pile applying the backup power supply device.
Background
The backup power supply is a backup power supply which can still supply power to the equipment for a period of time after the main power supply is powered off. In practical application, after the main power supply is powered off, part of the equipment needs to communicate with the main station and the background, or needs to store data after the main power supply is powered off; therefore, the backup power supply is widely applied to the fields of power acquisition, power communication, intelligent buildings and the like.
At present fill electric pile "TCU expense accuse unit" and adopt two 2.7V 15 farad electric capacity series connection's mode charge-discharge to carry out direct power supply mostly, output voltage does not stabilize at certain output value like this, and the back voltage of cutting off the power supply falls to the critical point of work moreover, can cause can not restart in a period, consequently needs a stable output voltage value to let equipment steady operation.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a backup power supply device for a charging pile, which solves the problem that the existing charging pile cannot be restarted within a period of time due to unstable backup power supply voltage after a main power supply of the charging pile is powered off.
The utility model is realized by the following technical measures that the main power module stores energy when working normally and supplies power to the target equipment after the power failure of the main power module; the boost module is connected with the backup power module and used for adjusting output voltage according to the voltage input by the backup power module; the boost module includes: the control unit is used for inputting the sampling unit and outputting the sampling unit; the input sampling unit is used for sampling the voltage input by the backup power supply module and feeding back an input sampling signal to the boosting unit; the output sampling unit is used for sampling the output voltage and feeding back an output sampling signal to the boosting unit, and the control unit adjusts the output voltage according to the input sampling signal and the output sampling signal.
As a preferred mode, an input filtering module is arranged between the backup power module and the boosting module; the output end of the boosting module is connected with an output filtering module.
As a preferable mode, the boost module includes a boost chip with model number SY7065 AQMC.
Preferably, the backup power supply device comprises a farad capacitor C94, a farad capacitor C95, an inductor L7, a capacitor C96 and a capacitor C10; the cathodes of the farad capacitor C94 and the farad capacitor C95 are grounded, and one ends of the capacitor C96 and the capacitor C10 are grounded; the IN pin of the boost chip is connected with the anode of a farad capacitor C94 and the anode of a farad capacitor C95; the LX pin of the boost chip is connected with the anode of a pull capacitor C94 and the anode of a farad capacitor C95 through an inductor L7; the other ends of the capacitor C96 and the capacitor C10 are connected with an IN pin of the boost chip; PGND pin, SGND pin ground connection of boost chip.
Preferably, the device further comprises a capacitor C91, a capacitor C97, a resistor R114, a resistor R116, a capacitor C92, a capacitor C93 and a diode D25; the pin of the boost chip PVOUT is connected with one end of a capacitor C91, one end of a resistor R114, one end of a capacitor C93, one end of a capacitor C92 and the anode of a diode D25; the pin of the voltage boosting chip SVOUT is connected with one end of the resistor R114; the FB pin of the boost chip is connected with the other end of the capacitor C91, one end of the capacitor C97, the other end of the resistor R114 and one end of the resistor R116; the other end of the capacitor C97, the other end of the resistor R116, the other end of the capacitor C93 and the other end of the capacitor C92 are grounded; the cathode output of diode D25.
Preferably, the resistor R115 is included, and the LBI pin of the boost chip is grounded through the resistor R115.
A charging pile is provided, wherein the backup power supply device is applied.
According to the backup power supply device for the charging pile, the capacitor is fully charged, after a main power supply is powered off, the farad power supply supplies power to equipment after being boosted by the boosting chip, and the power is input by the IN pin and the LX pin and output by the PVOUT pin; the FB pin carries out feedback control unit (PWMCONTROL) to regulate output voltage according to the output voltage, the EN pin is an enable pin, and the high output and the low enable are controlled by external high and low levels; SVOUT is an internal power supply control pin, is controlled by an internal electronic switch and is connected to an output end; through utilizing the boost module to boost, before farad capacitor's voltage is less than the threshold value that the boost module started to boost, all can export a stable voltage, effectively solve current backup power output voltage unstability, the unable restart in a period after the power failure problem, improve equipment stability and work efficiency.
Drawings
FIG. 1 is a block diagram of an embodiment of the present invention;
FIG. 2 is a circuit schematic of an embodiment of the present invention;
fig. 3 is a schematic diagram of an internal circuit of the voltage boosting chip of SY7065 AQMC.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings.
A backup power supply apparatus for a charging pile, referring to fig. 1 to 3, comprising: the backup power module stores energy when the main power supply works normally and supplies power to the target equipment after the power failure of the main power supply module; the boost module is connected with the backup power module and used for adjusting output voltage according to the voltage input by the backup power module; the boost module includes: the control unit is used for inputting the sampling unit and outputting the sampling unit; the input sampling unit is used for sampling the voltage input by the backup power supply module and feeding back an input sampling signal to the boosting unit; the output sampling unit is used for sampling the output voltage and feeding back an output sampling signal to the boosting unit, and the control unit adjusts the output voltage according to the input sampling signal and the output sampling signal.
Specifically, an input filtering module is arranged between the backup power module and the boosting module; the output end of the boosting module is connected with an output filtering module which respectively filters the input voltage and the output voltage.
The boosting module specifically comprises a boosting chip with the model of SY7065AQMC, which is a high-efficiency synchronous boosting chip with a built-in 5A current MOS; the backup power supply device comprises a farad capacitor C94, a farad capacitor C95, an inductor L7, a capacitor C96 and a capacitor C10; the cathodes of the farad capacitor C94 and the farad capacitor C95 are grounded, and one ends of the capacitor C96 and the capacitor C10 are grounded; the IN pin of the boost chip is connected with the anode of a farad capacitor C94 and the anode of a farad capacitor C95; the LX pin of the boost chip is connected with the anode of a pull capacitor C94 and the anode of a farad capacitor C95 through an inductor L7; the other ends of the capacitor C96 and the capacitor C10 are connected with an IN pin of the boost chip; PGND pin, SGND pin ground connection of boost chip.
In an embodiment, referring to fig. 2, the device further includes a capacitor C91, a capacitor C97, a resistor R114, a resistor R116, a capacitor C92, a capacitor C93, and a diode D25; the pin of the boost chip PVOUT is connected with one end of a capacitor C91, one end of a resistor R114, one end of a capacitor C93, one end of a capacitor C92 and the anode of a diode D25; one end of a pin resistor R114 of the voltage boosting chip SVOUT; the FB pin of the boost chip is connected with the other end of the capacitor C91, one end of the capacitor C97, the other end of the resistor R114 and one end of the resistor R116; the other end of the capacitor C97, the other end of the resistor R116, the other end of the capacitor C93 and the other end of the capacitor C92 are grounded; the cathode output of diode D25.
The working principle of the backup power supply device is as follows: the capacitor is fully charged, after the main power supply is powered off, the Faraday power supply supplies power to the equipment after being boosted by the boosting chip, and the power is input by the IN pin and the LX pin and output by the PVOUT pin; the FB pin carries out feedback control unit (PWMCONTROL) regulation of output voltage according to the output voltage, the EN pin is an enabling pin, and the high output and the low enable are controlled through external high and low levels; SVOUT is an internal power supply control pin, is controlled by an internal electronic switch and is connected to an output end; through utilizing the chip that steps up to boost, before farad capacitor's voltage is less than the threshold value that the module that steps up starts to boost, all can export a stable voltage, effectively solve current backup power output voltage unstability, the unable problem of restarting in a period after the power failure, improve equipment stability and work efficiency.
In the present embodiment, referring to fig. 2, the LBI pin of the boost chip is grounded through the resistor R115, including the resistor R115; the LBI pin and LBO pin of the boost chip are battery voltage monitoring modules, and the circuit does not need the function and shields the battery voltage monitoring modules.
Example two
The utility model provides a fill electric pile, uses the reserve power supply unit that has embodiment one, should fill electric pile and can't appear the problem that can't restart in the short time after the main power source falls the electricity, and efficiency, stability are high.
The backup power device for charging pile and the charging pile using the same are described above for facilitating understanding of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any changes, modifications, substitutions, combinations, and simplifications that do not depart from the principle of the present invention should be regarded as equivalent replacements and equivalents, which are included in the protection scope of the present invention.
Claims (7)
1. A backup power supply device for charging a pile, comprising: the backup power supply module stores energy when the main power supply works normally and supplies power to the target equipment after the main power supply is powered off; the boost module is connected with the backup power module and used for adjusting output voltage according to the voltage input by the backup power module; the boosting module includes: the control unit is used for inputting the sampling unit and outputting the sampling unit; the input sampling unit is used for sampling the voltage input by the backup power supply module and feeding back an input sampling signal to the boosting unit; the output sampling unit is used for sampling the output voltage and feeding back an output sampling signal to the boosting unit, and the control unit adjusts the output voltage according to the input sampling signal and the output sampling signal.
2. The backup power supply device for the charging pile according to claim 1, wherein an input filtering module is arranged between the backup power supply module and the boosting module; the output end of the boosting module is connected with an output filtering module.
3. The backup power supply device for the charging pile according to claim 2, wherein the boost module comprises a boost chip with model number SY7065 AQMC.
4. The backup power supply device for the charging pile according to claim 3, characterized in that the backup power supply device comprises a farad capacitor C94, a farad capacitor C95, an inductor L7, a capacitor C96 and a capacitor C10; the cathodes of the farad capacitor C94 and the farad capacitor C95 are grounded, and one ends of the capacitor C96 and the capacitor C10 are grounded; the IN pin of the boost chip is connected with the anode of a farad capacitor C94 and the anode of a farad capacitor C95; the LX pin of the boost chip is connected with the anode of a pull capacitor C94 and the anode of a farad capacitor C95 through an inductor L7; the other ends of the capacitor C96 and the capacitor C10 are connected with an IN pin of the boost chip; PGND pin, SGND pin ground connection of boost chip.
5. The backup power supply device for the charging pile according to claim 4, characterized by further comprising a capacitor C91, a capacitor C97, a resistor R114, a resistor R116, a capacitor C92, a capacitor C93, a diode D25; a pin of the boost chip PVOUT is connected with one end of a capacitor C91, one end of a resistor R114, one end of a capacitor C93, one end of a capacitor C92 and an anode of a diode D25; the pin of the voltage boosting chip SVOUT is connected with one end of the resistor R114; the FB pin of the boost chip is connected with the other end of the capacitor C91, one end of the capacitor C97, the other end of the resistor R114 and one end of the resistor R116; the other end of the capacitor C97, the other end of the resistor R116, the other end of the capacitor C93 and the other end of the capacitor C92 are grounded; the cathode output of diode D25.
6. The backup power supply device for the charging pile according to claim 3, characterized by comprising a resistor R115, wherein the LBI pin of the boost chip is grounded through the resistor R115.
7. A charging pile, characterized in that the backup power supply device according to any one of claims 1 to 6 is applied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122688224.4U CN216489887U (en) | 2021-11-05 | 2021-11-05 | Backup power supply device for charging pile and charging pile applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122688224.4U CN216489887U (en) | 2021-11-05 | 2021-11-05 | Backup power supply device for charging pile and charging pile applying same |
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| Publication Number | Publication Date |
|---|---|
| CN216489887U true CN216489887U (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122688224.4U Active CN216489887U (en) | 2021-11-05 | 2021-11-05 | Backup power supply device for charging pile and charging pile applying same |
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| Country | Link |
|---|---|
| CN (1) | CN216489887U (en) |
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2021
- 2021-11-05 CN CN202122688224.4U patent/CN216489887U/en active Active
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