CN210867247U - Portable power supply with protection grade of IP65 - Google Patents
Portable power supply with protection grade of IP65 Download PDFInfo
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- CN210867247U CN210867247U CN201922387190.8U CN201922387190U CN210867247U CN 210867247 U CN210867247 U CN 210867247U CN 201922387190 U CN201922387190 U CN 201922387190U CN 210867247 U CN210867247 U CN 210867247U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Abstract
The utility model provides a portable power supply with protection grade IP65, which comprises a charging interface, an output interface, a charging module, a prompting module, a fan control module, a temperature detection module, a low-temperature lithium battery, a power supply conversion module, an inversion module, a control module and a display module which are embedded in a suitcase; the charging module comprises a power supply circuit, a large-current charging circuit, a low-voltage pre-charging circuit, a charging current detection circuit and a charging overvoltage detection circuit. The output interface comprises a USB interface, a 12V direct-current power supply interface and an alternating-current interface, and the charging interface comprises an AC interface and a photovoltaic interface. The utility model has the characteristics of the security is high.
Description
Technical Field
The utility model relates to a power technical field especially relates to a protection level is IP 65's portable power source.
Background
With the pace of life increasing, people enjoy life with few and few opportunities to approach nature, so outdoor activities become an important choice for people to relax on weekends. More and more people choose to roast, fish or otherwise play in the field; the portable power supply is a portable power supply, and the portable power supply is used for converting a built-in power supply into different power supply outputs to be supplied to users, so that the portable power supply is popular. However, the safety of the power supply during use is important, especially during charging and discharging.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a portable power source with protection level IP65, which has the feature of high safety.
In order to solve the technical problem, the technical scheme of the utility model is that:
a portable power supply with the protection grade of IP65 comprises a charging interface, an output interface, a charging module, a low-temperature lithium battery, a power supply conversion module, an inversion module, a control module and a display module which are embedded in a suitcase; the input end of the power supply conversion module is electrically connected with the low-temperature lithium battery, the output end of the power supply conversion module is electrically connected with the output interface, and the control end of the power supply conversion module is electrically connected with the control module; the control end of the inversion module is electrically connected with the control module; the display module is electrically connected with the control module; the charging interface and the output interface are both provided with waterproof covers;
the charging module comprises a power supply circuit, a large-current charging circuit, a low-voltage pre-charging circuit, a charging current detection circuit and a charging overvoltage detection circuit; the input ends of the high-current charging circuit and the low-voltage pre-charging circuit are electrically connected with the charging interface, the control end is electrically connected with the control module, and the output end is electrically connected with the low-temperature lithium battery; the input end of the charging current detection circuit is respectively electrically connected with the large-current charging circuit and the low-voltage pre-charging circuit, and the output end of the charging current detection circuit is electrically connected with the control module; the input end of the charging overvoltage detection circuit is electrically connected with the charging interface, and the output end of the charging overvoltage detection circuit is electrically connected with the control module; the input end of the power supply circuit is electrically connected with the charging interface, and the output end of the power supply circuit is electrically connected with each power utilization module.
Preferably, the power conversion module comprises a 5V dc conversion module and a 12V dc conversion module; the output interface comprises a USB interface, a 12V direct-current power supply interface and an alternating-current interface; the USB interface and the 12V direct-current power supply interface are respectively and electrically connected with the output ends of the 5V direct-current conversion module and the 12V direct-current conversion module; the alternating current interface is electrically connected with the inversion module.
Preferably, the 5V dc conversion module is configured with a first current detection circuit, and the 12V dc conversion module is configured with a second current detection circuit; the output ends of the first current detection circuit and the second current detection circuit are electrically connected with the control circuit.
Preferably, the inverter module includes an inverter, an AC switching circuit, an operation indication circuit, and an inverter driving circuit.
Preferably, a temperature detection module is further installed in the suitcase, and the output end of the temperature detection module is electrically connected with the control module.
The utility model discloses technical effect mainly embodies in following aspect:
1. a large-current and small-current charging mode is used, so that the charging process is safer, and the damage to the low-temperature lithium battery is less;
2. various different power supplies can be output for users to use;
3. the charging interface and the output interface are both provided with waterproof covers, so that good dustproof and waterproof effects are achieved;
4. has the functions of over-current, over-voltage and over-temperature alarm.
Drawings
FIG. 1 is a schematic diagram of a portable power supply according to an embodiment;
FIG. 2 is a circuit diagram of a control module in an embodiment;
FIG. 3 is an interface circuit of a display module according to an embodiment;
FIG. 4 is a circuit diagram of a large current charging circuit in an embodiment;
FIG. 5 is a circuit diagram of a low voltage precharge circuit in an embodiment;
FIG. 6 is a circuit diagram of a charging access detection circuit in an embodiment;
FIG. 7 is a circuit diagram of a charging current detection circuit according to an embodiment;
FIG. 8 is a circuit diagram of a charging overvoltage detection circuit in an embodiment;
FIG. 9 is a circuit diagram of a power supply circuit in an embodiment;
FIG. 10 is a circuit diagram of a 5V DC converter module according to an embodiment;
FIG. 11 is a circuit diagram of a first current detection circuit in the embodiment;
FIG. 12 is a circuit diagram of a 12V DC converter module according to an embodiment;
FIG. 13 is a circuit diagram of a second current detection circuit in the embodiment;
FIG. 14 is a circuit diagram of a fan control module according to an embodiment;
FIG. 15 is a circuit diagram of a temperature detection module in an embodiment;
FIG. 16 is a circuit diagram of an AC switching circuit in an embodiment;
fig. 17 is a circuit diagram of an inverter driving circuit in the embodiment;
FIG. 18 is a circuit diagram of an operation indicating circuit in the embodiment;
FIG. 19 is a circuit diagram of a hint module in an embodiment.
Reference numerals: 1. a box body; 11. an output interface; 12. a charging interface; 13. a heat dissipation port; 2. a circuit module; 3. a low temperature lithium battery; 4. a heat radiation fan; 5. a waterproof cover; 6. a display module; 100. a control module; 210. a high-current charging circuit; 220. a circuit diagram of a low voltage precharge circuit; 230. a charging access detection circuit; 240. a charging current detection circuit; 250. a charging overvoltage detection circuit; 310. a display screen power supply circuit; 320. a first system power supply circuit; 330. a second system power supply circuit; 340. a current acquisition circuit power supply circuit; 350. an MCU power supply circuit; 410. a 5V direct current conversion module; 420. a first current detection circuit; 510. a 12V DC conversion module; 520. a second current detection circuit; 600. a fan control module; 700. a temperature detection module; 810. an AC switching circuit; 820. an inverter drive circuit; 830. an operation indication circuit; 900. and a prompt module.
Detailed Description
The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.
Referring to fig. 1, the present embodiment provides a portable power supply with protection class IP65, comprising a suitcase and a circuit module 2, a low temperature lithium battery 3 embedded in the suitcase; the suitcase comprises a suitcase body 1, wherein a charging interface 12, an output interface 11 and a heat dissipation port 13 are arranged on the suitcase body 1; a heat radiation fan 4 is arranged at the heat radiation port 13; the output interface 11 comprises a USB interface, a 12V direct-current power supply interface and an alternating-current interface, and the charging interface 12 comprises an AC interface and a photovoltaic interface, and can be charged through a mains supply or a photovoltaic panel. The heat dissipation port 13, the charging interface 12 and the output interface 11 are all provided with the waterproof cover 5. One end of the waterproof cover 5 is integrally provided with a connecting piece which is rotationally connected with the box body 1, so that the waterproof cover 5 can rotate, and when a power supply is used, the waterproof cover 5 can rotate.
The circuit module 2 includes a power supply charging module, a power conversion module, an inverter module, a fan control module 600, a temperature detection module 700, a prompt module 900, a control module 100, and a display module 6. The respective modules are explained in turn with reference to the drawings.
Referring to FIG. 2, the control module 100 employs an 8-bit microcontroller having a chip model number STM8S105C6T 6.
With reference to fig. 2 and 3, the interface circuit of the display module 6 is I2C type, the display module 6 is LCD panel, and the driver chip HT16C21 is configured, and the LCD panel is 8512 type.
The charging module includes a power supply circuit, a high current charging circuit 210, a low voltage pre-charging circuit, a charging current detection circuit 240, and a charging overvoltage detection circuit 250.
Referring to fig. 2, 4, 5 and 6, the input terminals of the charging access detection circuit 230, the large-current charging circuit 210 and the low-voltage pre-charging circuit are electrically connected to the charging interface 12; the control ends of the large-current charging circuit 210 and the low-voltage pre-charging circuit are electrically connected with the control module 100, and the output end is electrically connected with the low-temperature lithium battery 3. When the voltage of the low-temperature lithium battery 3 is less than 10V, the control module 100 controls the low-voltage pre-charge circuit to start up for pre-charging through the PreC-Ctrl1 signal and the Lowcharge signal, and when the voltage of the low-temperature lithium battery 3 is greater than 11.5V, the control module 100 controls the high-current charging circuit 210 to start up for high-current charging through the C-Ctrl1 signal. When the charging interface 12 has an external power supply, the charging access detection circuit 230 outputs a charging access signal to the control module 100.
With reference to fig. 2, 4, 5 and 7, the input end of the charging current detection circuit 240 is electrically connected to the large current charging circuit 210 and the low voltage pre-charging circuit, respectively, and the output end is electrically connected to the control module 100; the charging current detection circuit 240 outputs an ADCcharge signal to the control module 100, and the control module 100 calculates the charging current according to the ADCcharge signal.
With reference to fig. 2, 4 and 8, the input end of the charging overvoltage detection circuit 250 is electrically connected to the charging interface 12, and the output end is electrically connected to the control module 100; the charging overvoltage detection circuit 250 outputs a ChargeProtect signal to the control module 100, and the control module 100 calculates a charging voltage according to the ChargeProtect signal.
With reference to fig. 2 and 4, fig. 7 and 9, the power supply circuit includes 5 parts, which are a display screen power supply circuit 310, a first system power supply circuit 320, a second system power supply circuit 330, a current collection circuit power supply circuit 340 and an MCU power supply circuit 350. The input end of the first system power supply circuit 320 is electrically connected with the charging interface 12 and is used for converting the input voltage into 5V direct-current voltage; the input end of the second system power supply circuit 330 is electrically connected to the output end of the first system power supply circuit 320, and is configured to convert the 5V dc voltage into a VPOWERON voltage and a powerrin voltage; POWERIN voltage is input to the input end of the display screen power supply circuit 310 and is converted into 3V direct-current voltage to be supplied to the LCD screen; the input terminal of the current collection circuit power supply circuit 340 is electrically connected to the output terminal of the first system power supply circuit 320, and is configured to provide a voltage of-5V to the charging current detection circuit 240. The power voltage is input to the input terminal of the MCU power supply circuit 350 and converted into a 3.V dc voltage to be supplied to the control module 100.
The power conversion module includes a 5V dc conversion module 410 and a 12V dc conversion module 510. The USB interface and the 12V dc power interface are electrically connected to the output terminals of the 5V dc conversion module 410 and the 12V dc conversion module 510, respectively.
With reference to fig. 2, 10 and 11, the core of the 5V DC conversion module 410 is a DC-DC converter with model XL4501, and is configured with a first current detection circuit 420, where the first current detection circuit 420 is implemented based on an operational amplifier LM321MFX, and outputs a USB-DETECT signal to the control module 100, and the control module 100 calculates an output current of the USB interface according to the USB-DETECT signal.
With reference to fig. 2, 12 and 13, the core of the 12V DC conversion module 510 is a DC-DC converter of model XL4016, and is configured with a second current detection circuit 520; the second current detection circuit 520 has the same structure as the first current detection circuit 420, and outputs a 12V-DETECT signal to the control module 100, and the control module 100 calculates the output current of the 12V DC power interface according to the 12V-DETECT signal.
The number of the heat dissipation fans 4 may be multiple, and referring to fig. 14, the circuit diagram of the fan control module 600 may be that the control module 100 drives the fan control module 600 through the fantrl signal to indirectly control the start and stop of the heat dissipation fans 4.
Referring to fig. 15, the circuit diagram of the temperature detection module 700 is provided with 2 temperature sensors T1 and T2, which respectively output a TEMP-GET1 signal and a TEMP-GET2 signal to the control module 100, and the control module 100 determines whether the temperature is over-temperature according to the TEMP-GET1 signal and the TEMP-GET2 signal; meanwhile, the control module 100 may also control the output states of the 2 temperature sensors T1 and T2 through the teppc signal, that is, when the teppc signal is at a high level, the MOS transistor Q23 is turned on, so that the output pins of the temperature sensors T1 and T2 are always in a low level state.
The inverter module includes an inverter, an AC switching circuit 810, a work indication circuit 830, and an inverter driving circuit 820.
Referring to fig. 2 and 16, the AC switch circuit 810 is used to output a KEY-AC signal to the control module 100 to notify the control module 100 that the user needs to use the AC power.
With reference to fig. 2 and 17, after receiving the KEY-AC signal, the control module 100 turns on the inverter driving circuit 820 through an inverter-Ctrl signal, so as to start the inverter; the ac interface is electrically connected to the inverter to obtain an ac voltage. In addition, referring to fig. 16 and 9, the inverter driving circuit 820 is provided with a power supply unit, and the power supply unit receives the VPOWERON voltage output by the second system power supply circuit 330, converts the VPOWERON voltage into a 5V voltage, and supplies the voltage to the relay in the inverter driving circuit 820.
Referring to fig. 17 and 18, the operation indicating circuit 830 uses two color lamps, i.e., a red lamp and a green lamp, and the input end of the operation indicating circuit is directly electrically connected to the inverter, so that the two color lamps are driven to operate by the output signal of the inverter; when the fault occurs, the red light is lighted, and when the work is normal, the green light is lighted.
Referring to fig. 2 and 19, the prompt module adopts a buzzer, and the control module controls the buzzer to work through a B-CTRL signal.
Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.
Claims (5)
1. A portable power supply with the protection grade of IP65 is characterized by comprising a charging interface (12), an output interface (11), a charging module, a low-temperature lithium battery (3), a power supply conversion module, an inversion module, a control module (100) and a display module (6), wherein the charging interface, the output interface (11), the charging module, the low-temperature lithium battery, the power supply conversion module, the inversion module, the control module and the display module are embedded in a; the input end of the power supply conversion module is electrically connected with the low-temperature lithium battery (3), the output end of the power supply conversion module is electrically connected with the output interface (11), and the control end of the power supply conversion module is electrically connected with the control module (100); the control end of the inversion module is electrically connected with the control module (100); the display module (6) is electrically connected with the control module (100); the charging interface (12) and the output interface (11) are both provided with waterproof covers (5);
the charging module comprises a power supply circuit, a large-current charging circuit (210), a low-voltage pre-charging circuit, a charging current detection circuit (240) and a charging overvoltage detection circuit (250); the input ends of the high-current charging circuit (210) and the low-voltage pre-charging circuit are electrically connected with the charging interface (12), the control end is electrically connected with the control module (100), and the output end is electrically connected with the low-temperature lithium battery (3); the input end of the charging current detection circuit (240) is respectively electrically connected with the large-current charging circuit (210) and the low-voltage pre-charging circuit, and the output end of the charging current detection circuit is electrically connected with the control module (100); the input end of the charging overvoltage detection circuit (250) is electrically connected with the charging interface (12), and the output end of the charging overvoltage detection circuit is electrically connected with the control module (100); the input end of the power supply circuit is electrically connected with the charging interface (12), and the output end of the power supply circuit is electrically connected with each power utilization module.
2. The portable power supply of claim 1 with protection class IP65, wherein the power conversion module comprises a 5V dc conversion module (410) and a 12V dc conversion module (510); the output interface (11) comprises a USB interface, a 12V direct-current power supply interface and an alternating-current interface; the USB interface and the 12V direct current power supply interface are respectively and electrically connected with the output ends of the 5V direct current conversion module (410) and the 12V direct current conversion module (510); the alternating current interface is electrically connected with the inversion module.
3. The portable power supply of claim 2, with protection class IP65, wherein the 5V dc conversion module (410) is configured with a first current detection circuit (420), and the 12V dc conversion module (510) is configured with a second current detection circuit (520); the output ends of the first current detection circuit (420) and the second current detection circuit (520) are electrically connected with the control circuit.
4. The portable power supply of claim 3 with protection class IP65, wherein the inverter module comprises an inverter, an AC switching circuit (810), a work indication circuit (830), and an inverter driver circuit (820).
5. The portable power supply of claim 4 with protection class IP65, wherein the suitcase further comprises a temperature detection module (700), and the output of the temperature detection module (700) is electrically connected with the control module (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922387190.8U CN210867247U (en) | 2019-12-26 | 2019-12-26 | Portable power supply with protection grade of IP65 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922387190.8U CN210867247U (en) | 2019-12-26 | 2019-12-26 | Portable power supply with protection grade of IP65 |
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| Publication Number | Publication Date |
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| CN210867247U true CN210867247U (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922387190.8U Active CN210867247U (en) | 2019-12-26 | 2019-12-26 | Portable power supply with protection grade of IP65 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112436580A (en) * | 2020-12-14 | 2021-03-02 | 国网北京市电力公司 | Suitcase type portable energy storage device and charging method thereof |
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- 2019-12-26 CN CN201922387190.8U patent/CN210867247U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112436580A (en) * | 2020-12-14 | 2021-03-02 | 国网北京市电力公司 | Suitcase type portable energy storage device and charging method thereof |
| CN112436580B (en) * | 2020-12-14 | 2022-12-09 | 国网北京市电力公司 | Suitcase type portable energy storage device and charging method thereof |
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