CN210744822U - Portable emergency power supply - Google Patents
Portable emergency power supply Download PDFInfo
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- CN210744822U CN210744822U CN201921977898.2U CN201921977898U CN210744822U CN 210744822 U CN210744822 U CN 210744822U CN 201921977898 U CN201921977898 U CN 201921977898U CN 210744822 U CN210744822 U CN 210744822U
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Abstract
The utility model discloses a portable emergency power supply, including the battery unit, the input and the input interface of battery unit are connected, the output of battery unit is connected with the input of control unit, the output of control unit is connected with the input of contravariant module, precious module of charging, electric quantity acquisition module respectively, the output of contravariant module is connected with AC output interface, the output of precious module of charging is connected with DC output interface, the output of electric quantity acquisition module is connected with the electric quantity display screen, the output of control unit still is connected with DC output interface; the utility model discloses a specific energy is high, long service life, routine maintenance are with low costs, can supply multiple consumer to use, convenient to carry.
Description
Technical Field
The utility model belongs to the technical field of the power, a portable emergency power source is related to.
Background
Present power supply unit is developing to integration, miniaturization, intellectuality, portablely and high efficiency direction, based on emergency power supply's technique and development prospect, current emergency power supply's specific energy is low, life is short, routine maintenance is frequent, inconvenient carry and supply the equipment use of different power demands, the utility model provides a portable emergency power supply, this power are comprehensive power, are applicable to the emergent charging at various maintenance occasions, various radio stations, electronic equipment and big dipper terminal.
Disclosure of Invention
In order to achieve the purpose, the utility model provides a portable emergency power supply, portable emergency power supply's specific energy height, life are longer, the routine maintenance cost is lower, can supply multiple consumer to use convenient to carry.
The utility model adopts the technical scheme that the portable emergency power supply comprises a shell, the shell is cuboid, the bottom surface of the shell is a heat dissipation plate, the top surface of the shell is a PCB (printed circuit board), components are welded on the PCB, one side of the components, which is far away from the PCB, is tightly attached to the heat dissipation plate, a power display screen, a power switch and a wind hole are fixed on the side surface of the shell, a fan, an input interface and an output interface are arranged on the side surface of the shell, which is opposite to the wind hole, and the output interface comprises an alternating current output interface and a direct current output interface;
the component comprises a battery unit, the battery unit comprises a lithium battery and a protection board, two ends of the protection board are respectively connected to an input end and an output end of the lithium battery, the input end of the lithium battery is connected with an input interface, the output end of the lithium battery is connected with a fan power supply, the output end of the lithium battery is also connected with the input end of a control unit through a power switch, the output end of the control unit is respectively connected with the input end of an electric quantity acquisition module, the input end of an inversion module and the input end of a charger module, the output end of the electric quantity acquisition module is connected with the input end of an electric quantity display screen, the output end of the inversion module is connected with an alternating current output interface, the output end of the charger module is connected with a;
the control unit comprises a main circuit, an under-voltage control circuit and an under-voltage alarm circuit.
Further, the main circuit comprises a relay K1, the common contact of the relay K1 is connected with the output end of the lithium battery, the normally open contact of the relay K1 is respectively connected with the inverter module, the direct current output interface and the charger module, the output end of the lithium battery is also connected with a Vin pin of the L7812 power supply chip through a power switch S1, the Vin pin of the L7812 power supply chip is also respectively connected with the anode of a capacitor C1 and a Vbat interface, the Vout pin of the L7812 power supply chip is respectively connected with a 12V power supply, one end of a coil of a relay K1, the cathode of a diode D3, one end of a resistor R8 and the anode of a capacitor C2, the other end of the coil of the relay K1 is connected with the anode of a diode D3 and then is connected with the collector of a transistor Q3, the other end of the resistor R8 is connected with the base electrode of the transistor Q3, and the cathode of the capacitor C1, the cathode of the capacitor C2, the GND pin of the L7812 power supply chip and the emitter of the transistor Q3 are all grounded.
Further, the relay K1 is NT90NCE12 CB.
Further, the undervoltage control circuit comprises an LM358 operational amplifier, a positive power supply end of the LM358 operational amplifier is connected with a 12V power supply, a negative power supply end of the LM358 operational amplifier is grounded, a negative input end of the LM358 operational amplifier is connected with a sliding piece of a sliding rheostat RP1, one end of the sliding rheostat RP1 is grounded, the other end of the sliding rheostat RP1 is sequentially connected with a resistor R1 and a Vbat interface, a positive input end of the LM358 operational amplifier is sequentially connected with a resistor R2 and a 12V power supply, a positive input end of the LM358 operational amplifier is further connected with a cathode of a diode D2, an anode of the diode D2 is grounded, an output end of the LM358 operational amplifier is connected with an anode of a diode D1, a cathode of a diode D1 is connected in series with a resistor R3 and then connected with a base of a transistor Q1, a collector of the transistor Q1 is connected with a 12V power supply, an emitter of the transistor Q1, and a Vout pin of the L7805 power supply chip is respectively connected with an anode of a capacitor C4, one end of a capacitor C5 and a 5V power supply, and a cathode of the capacitor C3, a cathode of the capacitor C4, the other end of the capacitor C5 and a GND pin of the L7805 power supply chip are grounded after being connected.
Further, the undervoltage alarm circuit comprises an NE555 chip, pin 1 of the NE555 chip is grounded, pin 2 of the NE555 chip is connected with the anode of a capacitor C6, the cathode of the capacitor C6 is grounded, pin 6 of the NE555 chip is connected with the cathode of a diode D4, the anode of the diode D4 is connected with a slide sheet of a slide rheostat RP2, one end of the slide rheostat RP2 is connected with the cathode of a diode D5 after being connected with a resistor R5 in series, the anode of a diode D5 is connected with pin 2 of the NE555 chip, pin 6 of the NE555 chip is also directly connected with pin 2 of the NE555 chip, the slide sheet of the slide rheostat RP2 is also connected with pin 7 of the NE555 chip, the other end of the slide rheostat 685rp 2 is connected with a resistor R4 in series and then connected with a 5V power supply, the 5V power supply is also connected with pin 8 of the NE555 chip, pin 4 of the NE555 chip and a collector of a transistor Q2, the base of the transistor Q2 is sequentially connected, the emitter of the transistor Q2 is connected with the input end of a buzzer SP1 after being connected with a resistor R7 in series, the output end of the buzzer SP1 is grounded, and the pin 5 of the NE555 chip is connected with a capacitor C7 in series and then is grounded.
The utility model has the advantages that: the embodiment of the utility model provides a through set up protection shield and control unit at lithium cell both ends, real-time management lithium cell's charge-discharge state to overvoltage, under-voltage, excess temperature, low temperature etc. in the charge-discharge process are protected, make portable emergency power supply charge-discharge stable in the use, the specific energy of lithium cell is higher, life extension, daily maintenance number of times reduces, maintenance cost reduces; the embodiment of the utility model provides a through setting up the direct current output interface of exchanging output interface and equidimension not, supply the consumer of various voltage demands to use, just the utility model discloses size, quality are less, conveniently carry.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a connection diagram of components of the present invention.
Fig. 2 is a control unit main loop of the present invention.
Fig. 3 is the under-voltage control circuit of the control unit of the present invention.
Fig. 4 is the utility model discloses a control unit under-voltage alarm circuit.
In the figure, 1, a battery unit, 2, a control unit, 3, an inverter module, 4, a charger module, 5, an electric quantity acquisition module, 6, an electric quantity display screen, 7, an input interface, 8, a direct current output interface and 9, an alternating current output interface are arranged.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The portable emergency power supply comprises a shell, wherein the shell is rectangular, the bottom surface of the shell is a heat dissipation plate, the top surface of the shell is a PCB (printed circuit board), components are welded on the PCB, the components are far away from one side of the PCB and tightly attached to the heat dissipation plate, a power display screen 6, a power switch and a wind hole are fixed on the side wall of the shell, a fan, an input interface 7 and an output interface are fixed on the side wall, opposite to the wind hole, of the shell, and the output interface comprises an alternating current output interface 9 and a direct current output interface.
As shown in fig. 1, the components welded on the PCB board include a battery unit 1, the battery unit 1 is composed of a lithium battery and a protection board, the lithium battery has a structure of seven-series-two-parallel ternary lithium batteries, and the lithium battery has higher specific energy, small volume and light weight; the two ends of the protection board are respectively connected with the input end and the output end of the lithium battery, the protection board provides charging overvoltage protection, discharging low-voltage protection, charging and discharging over-temperature protection and charging and discharging low-temperature protection for the lithium battery, the input end of the lithium battery is connected with the input end of the fan power supply, the output end of the lithium battery is connected with the input end of the control unit 2 through the power switch, the output end of the control unit 2 is respectively connected with the input end of the electric quantity acquisition module 5, the input end of the inversion module 3 and the input end of the charger module 4, the control unit 2 manages the discharging process of the lithium battery, the output end of the electric quantity acquisition module 5 is connected with the signal input end of the electric quantity display screen 6, the electric quantity acquisition module 5 acquires the real-time output voltage of the control unit 2 and displays the real-time output voltage on the electric quantity display screen 6, precious module 4 charges converts the output voltage of control unit 2 into not direct current voltage of equidimension after and carries to direct current output interface 8 and supply direct current load to use, and the direct current voltage after the conversion is: the output end of the control unit 2 is also connected with a 24V direct current output interface 8, and the 24V voltage output by the lithium battery is directly output by direct current for a direct current load to use; mutual independence each other between 3 output line that exchange of contravariant module, 4 direct current output line of precious module that charge and the 2 direct current output line of the control unit, when the control unit 2 switched on, each output circuit all switched on, and the user uses through inserting different output interface with the consumer.
When the inverter module 3 converts the direct current output by the lithium battery into alternating current, the direct current is firstly increased to 300-400V through the boosting DC/DC circuit, and then the direct current is converted into 220V/50Hz alternating current through the DC/AC circuit.
The control unit 2 comprises a main circuit, an undervoltage control circuit and an undervoltage alarm circuit, a power switch is pressed down when the portable emergency power supply discharges, the circuit of the control unit 2 is conducted, the direct current of the battery unit 1 is subjected to various output discharges through the control unit 2, the control unit 2 controls the lithium battery to discharge by controlling the closing and the breaking of a relay contact on one hand, on the other hand, the output voltage of the lithium battery is detected, and when the output voltage is lower than a set value, a user is warned to turn off the power switch in time through a buzzer to charge the lithium battery.
The main circuit is shown in fig. 2 and comprises a relay K1, a common contact of the relay K1 is connected with an output end of a lithium battery, a normally open contact of the relay K1 is respectively connected with an inverter module 3, a direct current output interface 8 and a charger module 4, the output end of the lithium battery is also connected with a Vin pin of an L7812 power supply chip through a power switch S1, the Vin pin of the L7812 power supply chip is also respectively connected with an anode of a capacitor C1 and a Vbat interface, a Vout pin of the L7812 power supply chip is respectively connected with a 12V power supply, one end of a coil of the relay K1 and a cathode of a diode D3, one end of a resistor R8 and the anode of a capacitor C2, the other end of a coil of a relay K1 is connected with the anode of a diode D3 and then connected with the collector of a transistor Q3, the other end of a resistor R8 is connected with the base of a transistor Q3, the cathode of the capacitor C1, the cathode of the capacitor C2, the GND pin of an L7812 power supply chip and the emitter of a transistor Q3 are all grounded, and the model of the relay K1 is NT90NCE12 CB; when switch S1 is closed, the voltage that the lithium cell carried gives relay K1' S coil power supply after the steady voltage, relay K1 normally open contact is closed, control unit 2 is with the electric current input contravariant module 3 of lithium cell input, direct current output interface 8 and precious module 4 that charges, supply direct current load and alternating current load to use, relay K1 coil is not electrified when switch S1 disconnection, the disconnection of control unit 2 main circuit, the lithium cell stops discharging.
The undervoltage control circuit is shown in fig. 3, and includes an LM358 operational amplifier, a positive power terminal of the LM358 operational amplifier is connected to a 12V power supply, a negative power terminal of the LM358 operational amplifier is grounded, a negative input terminal of the LM358 operational amplifier is connected to a slider of a sliding rheostat RP1, one end of the sliding rheostat RP1 is grounded, the other end of the sliding rheostat RP1 is sequentially connected to a resistor R1 and a Vbat interface, a positive input terminal of the LM358 operational amplifier is sequentially connected to resistors R2 and a 12V power supply, a positive input terminal of the LM358 operational amplifier is further connected to a cathode of a diode D2, an anode of the diode D2 is grounded, an output terminal of the LM358 operational amplifier is connected to an anode of a diode D1, a cathode of a diode D1 is connected in series with a resistor R3 and then connected to a base of a transistor Q1, a collector of the transistor Q1 is connected to the 12V power supply, an emitter of the transistor Q1 is respectively connected, One end of a capacitor C5 is connected with a 5V power supply, and the cathode of a capacitor C3, the cathode of a capacitor C4, the other end of the capacitor C5 are connected with a GND pin of the L7805 power supply chip and then grounded.
The undervoltage alarm circuit is shown in fig. 4, and comprises an NE555 chip, wherein a pin 1 of the NE555 chip is grounded, a pin 2 of the NE555 chip is connected with an anode of a capacitor C6, a cathode of a capacitor C6 is grounded, a pin 6 of the NE555 chip is connected with a cathode of a diode D4, an anode of a diode D4 is connected with a slide sheet of a slide rheostat RP2, one end of the slide rheostat RP2 is connected with a cathode of a diode D5 after being connected with a resistor R5 in series, an anode of the diode D5 is connected with a pin 2 of the NE555 chip, the pin 6 of the NE555 chip is also directly connected with the pin 2 of the NE555 chip, the slide sheet of the slide rheostat RP2 is also connected with a pin 7 of the NE555 chip, the other end of the slide rheostat RP2 is connected with a resistor R4 in series and then connected with a 5V power supply, the 5V power supply is also connected with a pin 8 of the NE555 chip, a pin 4 of the NE555 chip and a collector of a transistor Q2 respectively, a base of a, the output end of the buzzer SP1 is grounded, and the pin 5 of the NE555 chip is grounded after being connected with the capacitor C7 in series.
The input voltage of lithium cell is carried to undervoltage control circuit by the main circuit of control unit 2, undervoltage control circuit's transistor Q1 compares the input voltage of base with the reference voltage of projecting pole, undervoltage control circuit sends signal to undervoltage warning circuit when the input voltage of lithium cell is low excessively, undervoltage control circuit regards the 5V voltage after the steady voltage as undervoltage warning circuit's input promptly, undervoltage warning circuit receives voltage input after, warn user lithium cell output undervoltage through bee calling organ, so that in time turn-off lithium cell output voltage, and charge the lithium cell, the diode can prevent the electric current from flowing backward in undervoltage warning circuit, triode Q2 control opening and closing of bee calling organ.
The embodiment of the utility model provides a working process as follows: in the charging process, an external charger is connected with a lithium battery through an input interface 7, voltage is input into the lithium battery for storage, a user presses a power switch of the portable emergency power supply during discharging, at the moment, a relay is closed, the lithium battery transmits direct current voltage to the control unit 2, the control unit 2 converts direct current into alternating current and direct current voltages with different sizes through the inversion module 3 and the charger module 4 for output, and the control unit 2 further transmits the output voltage of the lithium battery to the direct current output interface 8 for use by a direct current load; the protection plate can monitor the voltage and the temperature of the lithium battery in real time in the charging and discharging processes of the lithium battery, calculate the balance degree of the lithium battery according to the acquired voltage, adjust the single lithium battery to carry out balanced charging and balanced discharging when the balance degree exceeds a preset value until the balance degree is within a preset range, and monitor and protect the charging and discharging safety of the lithium battery; the electric quantity acquisition module 5 monitors the voltage of the lithium battery in real time and displays the voltage on the electric quantity display screen 6 for a user to check; when the portable emergency power supply is charged and discharged for a long time to cause the temperature to rise, the embodiment of the utility model radiates heat through the heat radiation plates which are attached to all the components and the fans and the air holes which are oppositely arranged on the side wall of the shell to prevent the components from being burnt; the embodiment of the utility model provides a through the charge-discharge situation that the protection shield can real-time supervision lithium cell, protect the charge-discharge process of lithium cell to prevent that the lithium cell from appearing overcharging, cross the condition such as putting, excess temperature, low temperature, make the charge-discharge process of lithium cell more stable, the maintenance number of times of lithium cell reduces, maintenance cost reduces, the life extension, the discharge process of setting up the control unit 2 ability control lithium cell prevents that the lithium cell from crossing to put, warns lithium cell discharge voltage on the low side, has guaranteed the life and the security of lithium cell, the embodiment of the utility model provides a be provided with a plurality of output interfaces, can supply the tributary load of alternating load and different demands to facilitate the use, and each components and parts are all integrated on the PCB board, the structure is inseparable, makes the utility model discloses a size quality is.
It is to be noted that, in the present invention, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (5)
1. The portable emergency power supply is characterized by comprising a shell, wherein the shell is cuboid, the bottom surface of the shell is a radiating plate, the top surface of the shell is a PCB (printed circuit board), components are welded on the PCB, one side of each component, which is far away from the PCB, is tightly attached to the radiating plate, a power display screen (6), a power switch and a wind hole are fixed on the side surface of the shell, a fan, an input interface (7) and an output interface are arranged on the side surface, opposite to the wind hole, of the shell, and the output interface comprises an alternating current output interface (9) and a direct current output interface (8);
the components and parts include battery unit (1), battery unit (1) includes lithium cell and protection shield, the input and the output of lithium cell are connected respectively at the protection shield both ends, input interface (7) are connected to the input of lithium cell, fan power is connected to the output of lithium cell, the output of lithium cell still passes through switch and connects the input of control unit (2), the output of control unit (2) is connected respectively electric quantity acquisition module (5) input, contravariant module (3) input and the input of precious module of charging (4), the output of electric quantity acquisition module (5) is connected with the input of electric quantity display screen (6), the output of contravariant module (3) is connected with alternating current output interface (9), the output and the direct current output interface (8) of precious module of charging (4) are connected, the output end of the control unit (2) is also directly connected with a direct current output interface (8);
the control unit (2) comprises a main circuit, an under-voltage control circuit and an under-voltage alarm circuit.
2. The portable emergency power supply of claim 1, wherein the main circuit comprises a relay K1, a common contact of the relay K1 is connected to an output terminal of a lithium battery, a normally open contact of the relay K1 is respectively connected to the inverter module (3), the DC output interface (8) and the charger module (4), the output terminal of the lithium battery is further connected to a Vin pin of an L7812 power supply chip through a power switch S1, the Vin pin of the L7812 power supply chip is further respectively connected to an anode of a capacitor C1 and a Vbat interface, the Vout pin of the L7812 power supply chip is respectively connected to a 12V power supply, one end of a coil of a relay K1, a cathode of a diode D3, one end of a resistor R8 and an anode of a capacitor C2, the other end of the coil of the relay K1 is connected to an anode of the diode D3 and then connected to a collector of a transistor Q3, the other end of the resistor R63, the cathode of the capacitor C1, the cathode of the capacitor C2, the GND pin of the L7812 power supply chip and the emitter of the transistor Q3 are all grounded.
3. The portable emergency power supply of claim 2, wherein the relay K1 is model NT90NCE12 CB.
4. The portable emergency power supply of claim 1, wherein the under-voltage control circuit comprises an LM358 operational amplifier, a positive power terminal of the LM358 operational amplifier is connected to a 12V power supply, a negative power terminal of the LM358 operational amplifier is connected to ground, a negative input terminal of the LM358 operational amplifier is connected to a slider of a sliding rheostat RP1, one end of the sliding rheostat RP1 is connected to ground, the other end of the sliding rheostat RP1 is connected to a resistor R1 and a Vbat interface in sequence, a positive input terminal of the LM358 operational amplifier is connected to a resistor R2 and a 12V power supply in sequence, a positive input terminal of the LM358 operational amplifier is further connected to a cathode of a diode D2, an anode of the diode D2 is connected to ground, an output terminal of the LM358 operational amplifier is connected to an anode of a diode D1, a cathode of a diode D1 is connected to a base of a transistor Q1 after being connected to a resistor R3, an emitter of the transistor Q1 is respectively connected with a Vin pin of an L7805 power supply chip and an anode of a capacitor C3, a Vout pin of the L7805 power supply chip is respectively connected with an anode of a capacitor C4, one end of a capacitor C5 and a 5V power supply, and a cathode of the capacitor C3, a cathode of a capacitor C4, the other end of the capacitor C5 and a GND pin of the L7805 power supply chip are connected and then grounded.
5. The portable emergency power supply of claim 1, wherein the under-voltage alarm circuit comprises an NE555 chip, pin 1 of the NE555 chip is grounded, pin 2 of the NE555 chip is connected with an anode of a capacitor C6, a cathode of the capacitor C6 is grounded, pin 6 of the NE555 chip is connected with a cathode of a diode D4, an anode of a diode D4 is connected with a slide sheet of a slide rheostat RP2, one end of the slide rheostat RP2 is connected with a cathode of a diode D5 after being connected with a resistor R5 in series, an anode of a diode D5 is connected with pin 2 of the NE555 chip, pin 6 of the NE555 chip is also directly connected with pin 2 of the NE555 chip, the slide sheet of the slide rheostat RP2 is also connected with pin 7 of the NE555 chip, the other end of the slide rheostat RP 364 is connected with a resistor R4 in series and then connected with a 5V power supply, the 5V power supply is also connected with pin 8 of the NE555 chip, pin 4 of the NE555 chip and, the base electrode of the transistor Q2 is sequentially connected with a resistor R6 and a pin 3 of an NE555 chip, the emitter electrode of the transistor Q2 is connected with the input end of a buzzer SP1 after being connected with the resistor R7 in series, the output end of the buzzer SP1 is grounded, and the pin 5 of the NE555 chip is connected with a capacitor C7 in series and then is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921977898.2U CN210744822U (en) | 2019-11-15 | 2019-11-15 | Portable emergency power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921977898.2U CN210744822U (en) | 2019-11-15 | 2019-11-15 | Portable emergency power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210744822U true CN210744822U (en) | 2020-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921977898.2U Active CN210744822U (en) | 2019-11-15 | 2019-11-15 | Portable emergency power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210744822U (en) |
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2019
- 2019-11-15 CN CN201921977898.2U patent/CN210744822U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Portable emergency power supply Effective date of registration: 20220707 Granted publication date: 20200612 Pledgee: China Minsheng Banking Corp Xi'an branch Pledgor: Xi'an Junbiao Electronic Technology Co.,Ltd. Registration number: Y2022610000386 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230726 Granted publication date: 20200612 Pledgee: China Minsheng Banking Corp Xi'an branch Pledgor: Xi'an Junbiao Electronic Technology Co.,Ltd. Registration number: Y2022610000386 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Portable emergency power supply Effective date of registration: 20230814 Granted publication date: 20200612 Pledgee: Shaanxi cultural industry finance Company limited by guarantee Pledgor: Xi'an Junbiao Electronic Technology Co.,Ltd. Registration number: Y2023610000653 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |