CN209994139U - Portable energy storage power supply - Google Patents
Portable energy storage power supply Download PDFInfo
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- CN209994139U CN209994139U CN201921040307.9U CN201921040307U CN209994139U CN 209994139 U CN209994139 U CN 209994139U CN 201921040307 U CN201921040307 U CN 201921040307U CN 209994139 U CN209994139 U CN 209994139U
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- 238000004146 energy storage Methods 0.000 title claims abstract description 44
- 230000004224 protection Effects 0.000 claims abstract description 45
- 238000006243 chemical reaction Methods 0.000 claims abstract description 28
- 230000002159 abnormal effect Effects 0.000 claims abstract description 5
- 235000019504 cigarettes Nutrition 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 claims description 2
- 239000000178 monomer Substances 0.000 abstract description 9
- 230000006872 improvement Effects 0.000 description 8
- 238000012544 monitoring process Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
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- 210000004027 cell Anatomy 0.000 description 2
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Abstract
The utility model discloses a portable energy storage power supply, which comprises a shell, an inverter board, a protection board, a control board, a battery pack and a radiator, wherein the inverter board, the protection board, the control board, the battery pack and the radiator are all fixed inside the shell; the inverter board comprises a power tracking unit and a direct current conversion unit, the power tracking unit is used for controlling the direct current conversion unit according to the power of the charging equipment, and the direct current conversion unit is connected between the charging equipment and the battery pack in series; the protection board comprises a main control unit, a voltage acquisition unit and a current acquisition unit, wherein the voltage acquisition unit is used for acquiring the monomer voltage value of the battery pack in real time, the current acquisition unit is used for acquiring the maximum current value of the battery pack, and the main control unit is used for judging whether the battery pack is abnormal according to the monomer voltage value and the maximum current value. The utility model discloses can match multiple battery charging outfit, can also provide multiple power protection, help improving the security and the reliability of power.
Description
Technical Field
The utility model belongs to the technical field of the power, concretely relates to portable energy storage power.
Background
Nowadays, as society develops, people's demand for portable energy storage power supply is gradually emerging in life. The portable energy storage power supply has wide application prospect, and has the main application scenes of occasions such as emergency communication, power emergency repair, medical equipment, exploration surveying and mapping, military, fire fighting and disaster relief, outdoor environment detection and the like, wide power-shortage areas and the like. However, the portable energy storage power supply needs to be used both in household and outdoors, needs high integration of products, and is required to be movable, light in weight and small in size.
Among them, chinese patent document discloses a multifunctional portable energy storage power source (publication No. CN 208690969U), comprising: the shell comprises a rear shell and a front shell, and the rear shell is connected with the front shell in a buckling manner; the front surface of the rear shell is provided with a rear shell decorating part, and the front surface of the front shell is provided with a front shell decorating part; a plurality of battery fixing pieces are arranged in the shell, and a plurality of batteries are arranged on the battery fixing pieces; the Bluetooth sound box is arranged at the side part of the shell, the fan module is arranged in the shell, and the fan module is electrically connected with the battery; the front surface of the front shell decoration is provided with a USB socket module which is electrically connected with the battery; the front side of the front shell decorating part is provided with an LED lamp which is electrically connected with the battery. The above solution solves the problem of output and illumination of the bluetooth speaker to some extent, but this solution has at least the following disadvantages: firstly, the charging efficiency is low, and the charging device cannot be adapted to various charging devices; secondly, do not possess the protection circuit, the security is lower.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the portable energy storage power supply can be matched with various charging devices, automatically adjusts charging power, contributes to improving charging efficiency, can also provide multiple power supply protection, and contributes to improving the safety and the reliability of the power supply.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a portable energy storage power supply comprises a shell, an inverter board, a protection board, a control board, a battery pack and a radiator, wherein the inverter board, the protection board, the control board, the battery pack and the radiator are all fixed inside the shell;
the inverter board comprises a power tracking unit and a direct current conversion unit, the power tracking unit is used for controlling the direct current conversion unit according to the power of charging equipment, and the direct current conversion unit is connected in series between the charging equipment and the battery pack;
the protection board comprises a main control unit, a voltage acquisition unit and a current acquisition unit, wherein the voltage acquisition unit is used for acquiring the monomer voltage value of the battery pack in real time, the current acquisition unit is used for acquiring the maximum current value of the battery pack, and the main control unit is used for judging whether the battery pack is abnormal or not according to the monomer voltage value and the maximum current value.
As an improvement of a portable energy storage power, the group battery include battery chamber, apron and a plurality of battery, the battery chamber with be formed with between the apron and be used for the holding a plurality of the space of battery, the battery chamber is provided with and is used for the holding the cell body of protection shield, the apron corresponds the position of cell body is installed the protection shield.
As an improvement of a portable energy storage power supply, the bottom of battery chamber outwards extends and forms connecting portion, the shell inner wall be provided with the fixed part that connecting portion match, the connecting portion joint in the fixed part.
As an improvement of a portable energy storage power supply, the shell includes hollow shell body, first face lid and second face lid, install the one end of shell body first face lid, install the other end of shell body the second face lid, the contravariant board the protection shield reaches the group battery holding in the shell body, the control panel is fixed in first face lid, first face lid with the louvre has all been seted up to the second face lid.
As an improvement of the portable energy storage power supply of the present invention, the surface of the case body is provided with a handle.
As an improvement of a portable energy storage power supply, the control panel includes input interface, a plurality of output interface and display screen, and is a plurality of output interface is used for matcing different consumer interfaces, input interface and a plurality of output interface with the group battery electricity is connected, the display screen is used for showing portable energy storage power supply's operating condition and fault code.
As an improvement of the portable energy storage power supply, the electric equipment interface is at least one of a USB interface, a Typec-C interface and a cigarette lighter interface.
As an improvement of a portable energy storage power supply, the contravariant board is fixed the top of group battery, install the tip of contravariant board the radiator.
As an improvement to a portable energy storage power supply, the charging device is a charger or a solar cell.
The utility model has the advantages that the utility model comprises a shell, an inversion plate, a protection plate, a control plate, a battery pack and a radiator, wherein the inversion plate, the protection plate, the control plate, the battery pack and the radiator are all fixed inside the shell; the inverter board comprises a power tracking unit and a direct current conversion unit, the power tracking unit is used for controlling the direct current conversion unit according to the power of charging equipment, and the direct current conversion unit is connected in series between the charging equipment and the battery pack; the protection board comprises a main control unit, a voltage acquisition unit and a current acquisition unit, wherein the voltage acquisition unit is used for acquiring the monomer voltage value of the battery pack in real time, the current acquisition unit is used for acquiring the maximum current value of the battery pack, and the main control unit is used for judging whether the battery pack is abnormal or not according to the monomer voltage value and the maximum current value. Because the existing power supply has a single charging function and very limited application occasions and is difficult to meet various requirements of people, a direct current conversion unit is connected between charging equipment and a battery pack in series and is controlled by a power tracking unit, namely, the power tracking unit can control the power output by the charging equipment to the battery pack; the power tracking unit monitors the voltage, the current, the power and the internal resistance of the charging equipment, and regulates the duty ratio of a PWM (pulse width modulation) driving signal of the direct current conversion unit according to the monitoring, so that the power output from the charging equipment to the battery pack is controlled; compared with the existing power supply, the utility model can automatically adjust according to the power of the charging equipment, is beneficial to realizing the maximum output of different charging equipment, thereby improving the charging efficiency of the portable energy storage power supply and improving the user experience; in order to improve the safety and reliability of the portable energy storage power supply, a main control unit, a voltage acquisition unit and a current acquisition unit are additionally arranged, the main control unit measures the actual voltage value and the actual current value of the battery pack or the battery monomer according to the feedback of the voltage acquisition unit and the current acquisition unit, compares the actual voltage value and the actual current value with a preset value, corrects the response of the portable energy storage power supply by using the deviation, executes adjustment control, realizes safe and stable voltage and current control, and improves the power utilization reliability of the portable energy storage power supply; the single battery is easier to trigger protection, so the voltage acquisition unit acquires the single voltage value of the battery pack; because the circuit is easily damaged by the overlarge current, the current acquisition unit acquires the maximum current value of the battery pack, the reaction speed of circuit protection is favorably shortened, and the safety of a power supply is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is a schematic view of the work flow of the present invention.
Wherein: 1-a housing; 2-an inverter board; 3-protecting the board; 4-control panel; 5-a battery pack; 6-a radiator; 10-a fixed part; 11-a shell body; 12-a first face cover; 13-a second face cover; 21-a power tracking unit; 22-a direct current conversion unit; 31-a master control unit; 32-a voltage acquisition unit; 33-a current collection unit; 42-an output interface; 43-a display screen; 51-a battery cavity; 52-a cover plate; 53-a battery; 511-a tank body; 512-a connecting part; 7-a charging device; 8-heat dissipation holes; 9-handle.
Detailed Description
As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", horizontal "and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, detachable connections, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The present invention will be described in further detail with reference to the accompanying drawings, which are not intended to limit the present invention.
Example 1
As shown in fig. 1 to 3, a portable energy storage power supply includes a housing 1, an inverter board 2, a protection board 3, a control board 4, a battery pack 5 and a heat sink 6, wherein the inverter board 2, the protection board 3, the control board 4, the battery pack 5 and the heat sink 6 are all fixed inside the housing 1; the inverter board 2 comprises a power tracking unit 21 and a direct current conversion unit 22, the power tracking unit 21 is used for controlling the direct current conversion unit 22 according to the power of the charging device 7, and the direct current conversion unit 22 is connected in series between the charging device 7 and the battery pack 5; the protection board 3 includes a main control unit 31, a voltage acquisition unit 32 and a current acquisition unit 33, the voltage acquisition unit 32 is used for acquiring the monomer voltage value of the battery pack 5 in real time, the current acquisition unit 33 is used for acquiring the maximum current value of the battery pack 5, the main control unit 31 is used for judging whether the battery pack 5 is abnormal according to the monomer voltage value and the maximum current value, wherein the charging device 7 is a solar battery. Because the existing power supply has a single charging function and limited application occasions and is difficult to meet various requirements of people, the direct current conversion unit 22 is connected between the charging equipment 7 and the battery pack 5 in series, and the direct current conversion unit 22 is controlled by the power tracking unit 21, namely, the power tracking unit 21 can control the power output from the charging equipment 7 to the battery pack 5; the power tracking unit 21 monitors the voltage, the current, the power and the internal resistance of the charging device 7, and adjusts the duty ratio of the PWM driving signal of the dc conversion unit 22 based on the monitoring, so as to control the power output from the charging device 7 to the battery pack 5; because for the linear circuit, when the load resistance equals the internal resistance of the power, the power has the maximum power output, when the equivalent resistance of the direct current conversion unit 22 and the battery pack 5 equals the internal resistance of the solar battery, the maximum output of the solar battery can be realized, compared with the existing power, the utility model discloses can help to realize the maximum output of different charging equipment 7 according to the power automatic adjustment of charging equipment 7, thereby improve the charging efficiency of the portable energy storage power, improve user experience; in order to improve the safety and reliability of the portable energy storage power supply, a main control unit 31, a voltage acquisition unit 32 and a current acquisition unit 33 are additionally arranged, the main control unit 31 measures the actual voltage value and the actual current value of the battery pack 5 or the battery cell according to the feedback of the voltage acquisition unit 32 and the current acquisition unit 33, compares the actual voltage value and the actual current value with a preset value, corrects the response of the portable energy storage power supply by using the deviation, executes adjustment control, realizes safe and stable voltage and current control, and improves the reliability of the power utilization of the portable energy storage power supply; since the single battery is easier to trigger protection, the voltage acquisition unit 32 acquires the single voltage value of the battery pack 5; since the circuit is easily damaged by the excessive current, the current collecting unit 33 collects the maximum current value of the battery pack 5, which is beneficial to shortening the response speed of circuit protection and improving the safety of the power supply; various functional modules and circuits are integrated on the inverter board 2, the protection board 3 and the control board 4 respectively, the division of labor is clear, and the stability of a power supply is guaranteed.
Preferably, the battery pack 5 includes a battery cavity 51, a cover plate 52 and a plurality of batteries 53, a space for accommodating the plurality of batteries 53 is formed between the battery cavity 51 and the cover plate 52, the battery cavity 51 is provided with a slot 511 for accommodating the protection board 3, and the protection board 3 is mounted on the cover plate 52 at a position corresponding to the slot 511. The battery cavity 51 is additionally arranged, so that a stable space can be provided for the plurality of batteries 53, safety accidents caused by the contact of the plurality of batteries 53 and the protection plate 3 are avoided, meanwhile, the battery cavity 51 is provided with a groove body 511 for placing the protection plate 3, the plurality of batteries 53 and the protection plate 3 are effectively separated, and meanwhile, the wiring between the batteries 53 and the protection plate 3 is facilitated; in this embodiment, a clamping rail is provided in the slot body 511, the protection plate 3 is inserted into the slot body 511 along the clamping rail, a part of the cover plate 52 is covered and connected to the battery cavity 51, and the other part of the cover plate 52 is covered and connected to the slot body 511, thereby realizing the storage of the plurality of batteries 53 and the protection plate 3, but the present invention is not limited thereto.
Preferably, the bottom of the battery cavity 51 extends outwards to form a connecting portion 512, the inner wall of the housing 1 is provided with a fixing portion 10 matching with the connecting portion 512, and the connecting portion 512 is clamped to the fixing portion 10. In this embodiment, the connecting portion 512 is a clamping strip, the fixing portion 10 is a track arranged along the inner wall of the housing 1, the battery cavity 51 passes through the connecting portion 512, and is fixed inside the housing 1 along the fixing portion 10, but the utility model discloses not so limited, the connecting portion 512 is a track, the fixing portion 10 is a clamping strip, the connecting portion 512 is connected with the fixing portion 10.
Preferably, the housing 1 includes a hollow housing 11, a first cover 12 and a second cover 13, the first cover 12 is installed at one end of the housing 11, the second cover 13 is installed at the other end of the housing 11, the inverter board 2, the protection board 3 and the battery pack 5 are accommodated in the housing 11, the control board 4 is fixed to the first cover 12, and the heat dissipation holes 8 are formed in the first cover 12 and the second cover 13. Casing body 11, first face lid 12 and second face lid 13 adopt split type design, are convenient for assemble the power, and louvre 8 has all been seted up to first face lid 12 and second face lid 13, helps improving the heat dispersion of power, prevents that the inside high temperature of shell 1 from influencing the security of power.
Preferably, the surface of the housing body 11 is provided with a handle 9. The handle 9 is added, so that the portability of the power supply is improved, and the user experience is improved.
Preferably, the control panel 4 includes an input interface, a plurality of output interfaces 42 and a display screen 43, the plurality of output interfaces 42 are used for matching different electrical equipment interfaces, the input interface and the plurality of output interfaces 42 are electrically connected with the battery pack 5, and the display screen 43 is used for displaying the working state and the fault code of the portable energy storage power source. The plurality of output interfaces 42 are additionally arranged, so that the portable energy storage power supply can be conveniently matched with different electric equipment, application occasions are widened, various requirements of people are met, the working state and fault codes of the portable energy storage power supply can be displayed by the display screen 43, and a user can conveniently know the working state of the portable energy storage power supply and check faults; wherein, control panel 4 supports multiple input that charges, multiplexed output still includes the button, is convenient for open and close the power, and wifi communication module or bluetooth communication module can also be add to control panel 4, and the user of being convenient for carries out remote monitoring.
Preferably, the electric equipment interface is at least one of a USB interface, a Typec-C interface and a cigarette lighter interface. The USB interface, the Typec-C interface and the cigarette lighter interface are common interfaces, and a user can select a proper interface to charge the mobile device according to an actual application scene.
Preferably, the inverter board 2 is fixed above the battery pack 5, and a radiator 6 is mounted on an end portion of the inverter board 2. When the interior of the shell 1 is too high, the radiator 6 is opened, and the heat in the interior of the shell 1 can be brought to the exterior of the shell 1; when the interior of the shell 1 returns to normal, the radiator 6 is closed, so that the temperature in the shell 1 is reduced, the safety of a power supply is improved, and the service life of the battery pack 5 is prolonged; wherein, the thermistor is used to test the temperature inside the casing 1, and the thermistor feeds back temperature information to the main control unit 31.
The utility model also discloses a control method of portable energy storage power, including following step:
calculating the impedance of the charging device 7, then monitoring the current and voltage changes of the charging device 7 in real time, and adjusting the duty ratio of the driving signal of the direct current conversion unit 22, so that the equivalent resistance of the direct current conversion unit 22 and the battery pack 5 is equal to the impedance of the charging device 7;
collecting a single voltage value of the battery pack 5, and disconnecting a loop of the battery pack 5 if the single voltage value continuously exceeds a preset voltage within a preset time; if the voltage value of the single battery is kept within the preset range within the preset time, a loop of the battery pack 5 is conducted;
acquiring the maximum current value of the battery pack 5, and disconnecting the loop of the battery pack 5 if the maximum current value exceeds the preset current; and if the maximum current value still exceeds the preset current after the circuit of the battery pack 5 is switched on and off for multiple times, judging that the circuit of the battery pack 5 has a fault.
It should be noted that, in the control method of the present invention, the dc conversion unit 22 is connected in series between the charging device 7 and the battery pack 5, and the dc conversion unit 22 is controlled by the power tracking unit 21, that is, the power tracking unit 21 can control the power output from the charging device 7 to the battery pack 5; the power tracking unit 21 monitors the voltage, the current, the power and the internal resistance of the charging device 7, and adjusts the duty ratio of the PWM driving signal of the dc conversion unit 22 based on the monitoring, so as to control the power output from the charging device 7 to the battery pack 5; collecting a single voltage value of the battery pack 5, disconnecting a loop of the battery pack 5 when the single voltage value is detected to continuously exceed a preset voltage within a preset time, so that the single voltage value can be prevented from shaking, the testing precision is improved, and switching on the loop of the battery pack 5 again when the single voltage value is kept within a preset range within the preset time, namely the single voltage value is within the preset range within the preset time, so as to meet the safety standard, wherein the preset voltage and the preset range are not overlapped, so that the voltage shaking can be prevented; the heat accumulation caused by overlarge current is a continuous process, so that two protections are generally carried out on the current, the set value of the first protection is smaller, the delay time is longer, the set value of the second protection is larger, the delay time is very short, for example, the current is greater than 1A, the protection is carried out after 500ms, the current is greater than 5A, the protection is carried out after 10ms, and after the protection is carried out, the current is instantly changed into 0A, therefore, the loop of the battery pack 5 needs to be switched on and off for a second time, whether the maximum current value still exceeds the preset current is judged, if yes, the loop fault of the battery pack 5 is judged, and a corresponding fault code is displayed on a display screen 43 to prompt a user to carry out maintenance.
Example 2
The difference from example 1 is: the charging device 7 of the present embodiment is a charger. The charger is an AC charger, a PV charger, a vehicle charger, or a PV direct charger, and when the charger is detected to be connected, the battery pack 5 is charged through the input interface; when the equivalent resistance of the dc conversion unit 22 and the battery pack 5 is equal to the impedance of the charger, the maximum output of the charger can be realized; the power tracking unit 21 can automatically adjust the power of the charging device 7, and is helpful for realizing the maximum output of different charging devices 7, so that the charging efficiency of the portable energy storage power supply is improved, and the user experience is improved.
The other structures are the same as those of embodiment 1, and are not described again here.
Variations and modifications to the above-described embodiments may become apparent to those skilled in the art from the disclosure and teachings of the above description. Therefore, the present invention is not limited to the above-mentioned embodiments, and any obvious modifications, replacements or variations made by those skilled in the art on the basis of the present invention belong to the protection scope of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (9)
1. A portable energy storage power supply, characterized by: the power supply comprises a shell (1), an inverter board (2), a protection board (3), a control board (4), a battery pack (5) and a radiator (6), wherein the inverter board (2), the protection board (3), the control board (4), the battery pack (5) and the radiator (6) are all fixed inside the shell (1);
the inverter board (2) comprises a power tracking unit (21) and a direct current conversion unit (22), the power tracking unit (21) is used for controlling the direct current conversion unit (22) according to the power of a charging device (7), and the direct current conversion unit (22) is connected between the charging device (7) and the battery pack (5) in series;
the protection board (3) comprises a main control unit (31), a voltage acquisition unit (32) and a current acquisition unit (33), wherein the voltage acquisition unit (32) is used for acquiring the single voltage value of the battery pack (5) in real time, the current acquisition unit (33) is used for acquiring the maximum current value of the battery pack (5), and the main control unit (31) is used for judging whether the battery pack (5) is abnormal or not according to the single voltage value and the maximum current value.
2. A portable energy storage power supply according to claim 1, wherein: the battery pack (5) comprises a battery cavity (51), a cover plate (52) and a plurality of batteries (53), the battery cavity (51) and a space for containing the batteries (53) are formed between the cover plate (52), the battery cavity (51) is provided with a groove body (511) for containing the protection plate (3), and the cover plate (52) corresponds to the position of the groove body (511) and is provided with the protection plate (3).
3. A portable energy storage power supply according to claim 2, wherein: the bottom of battery chamber (51) outwards extends and forms connecting portion (512), shell (1) inner wall be provided with fixed part (10) that connecting portion (512) match, connecting portion (512) joint in fixed part (10).
4. A portable energy storage power supply according to claim 1, wherein: the shell (1) comprises a hollow shell body (11), a first face cover (12) and a second face cover (13), the first face cover (12) is installed at one end of the shell body (11), the second face cover (13) is installed at the other end of the shell body (11), the inversion board (2), the protection board (3) and the battery pack (5) are contained in the shell body (11), the control board (4) is fixed on the first face cover (12), and the heat dissipation holes (8) are formed in the first face cover (12) and the second face cover (13).
5. A portable energy storage power supply according to claim 4, wherein: the surface of the shell body (11) is provided with a handle (9).
6. A portable energy storage power supply according to any one of claims 1 to 4, wherein: control panel (4) are including input interface, a plurality of output interface (42) and display screen (43), and is a plurality of output interface (42) are used for matching different consumer interfaces, input interface and a plurality of output interface (42) with group battery (5) electricity is connected, display screen (43) are used for showing portable energy storage power's operating condition and fault code.
7. A portable energy storage power supply according to claim 6, wherein: the electric equipment interface is at least one of a USB interface, a Typec-C interface and a cigarette lighter interface.
8. A portable energy storage power supply according to any one of claims 1 to 4, wherein: the inverter board (2) is fixed above the battery pack (5), and the radiator (6) is installed at the end part of the inverter board (2).
9. A portable energy storage power supply according to any one of claims 1 to 4, wherein: the charging equipment (7) is a charger or a solar battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921040307.9U CN209994139U (en) | 2019-07-05 | 2019-07-05 | Portable energy storage power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921040307.9U CN209994139U (en) | 2019-07-05 | 2019-07-05 | Portable energy storage power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209994139U true CN209994139U (en) | 2020-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921040307.9U Expired - Fee Related CN209994139U (en) | 2019-07-05 | 2019-07-05 | Portable energy storage power supply |
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| CN (1) | CN209994139U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110212621A (en) * | 2019-07-05 | 2019-09-06 | 东莞市时瑞电子有限公司 | A kind of portable energy-storing power supply and its control method |
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2019
- 2019-07-05 CN CN201921040307.9U patent/CN209994139U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110212621A (en) * | 2019-07-05 | 2019-09-06 | 东莞市时瑞电子有限公司 | A kind of portable energy-storing power supply and its control method |
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