CN111162596A

CN111162596A - Multifunctional extensible mobile charging power supply and photovoltaic power supply box

Info

Publication number: CN111162596A
Application number: CN202010120059.XA
Authority: CN
Inventors: 胡丹丹; 李涛; 李鑫
Original assignee: Xiamen Haiqi New Energy Technology Co Ltd
Current assignee: Xiamen Haiqi New Energy Technology Co Ltd
Priority date: 2020-02-26
Filing date: 2020-02-26
Publication date: 2020-05-15

Abstract

The invention provides a multifunctional and extensible mobile charging power supply and a photovoltaic power supply box. The multifunctional and extensible mobile charging power supply comprises a casing; the casing is provided with a battery cavity and various types of interfaces; The conductors in the battery cavity and the battery cavity are connected to the battery management module; the battery management module is provided with an anti-instantaneous high-current module; the anti-instantaneous high-current module is used to prevent instantaneous high current when charging power sources with different voltages are turned on. The multifunctional expandable mobile charging power supply provided by the invention solves the problem of excessive current in the circuit at the moment of insertion due to inconsistent voltages of the charging power supplies in a parallel system of several charging power supplies. The photovoltaic power box provided by the present invention converts light energy into electrical energy to charge the charging module through the photovoltaic panel, thereby saving energy and protecting the environment. It is especially suitable for multi-member group organizations and the needs of engineering operations, field exploration, rescue and disaster relief, film and television shooting and military support.

Description

Multifunctional extensible mobile charging power supply and photovoltaic power supply box

Technical Field

The invention relates to the field of mobile power supplies, in particular to a multifunctional extensible mobile charging power supply and a photovoltaic power supply box.

Background

In some small application scenes such as construction lighting, emergency rescue and emergency power supply places, a small power supply device is usually adopted for supplying power, and in large application scenes such as engineering operation, field exploration, emergency, rescue and relief work, building construction, emergency, movie and television shooting, military security and the like, a large power supply is needed for supplying power.

The user usually selects the corresponding power supply device according to different application scenarios. The power supply in a general small application scene cannot be applied to a large power utilization scene, because the voltages of all spliced power supplies to be connected are inconsistent, the current of the circuit is overlarge at the moment of insertion, and the circuit is easy to burn.

Disclosure of Invention

In order to solve the problem that the power supply in the general small application scene mentioned in the background technology can not be suitable for a large power utilization scene, which is caused by the fact that the voltage of each spliced power supply to be connected is inconsistent, the current of the circuit is overlarge at the moment of insertion and the circuit is easy to burn out, the invention provides a multifunctional extensible mobile charging power supply and a photovoltaic power supply box, wherein the multifunctional extensible mobile charging power supply comprises a shell; the shell is provided with a battery cavity and interfaces of various types; the interfaces of various types and the electric conductors in the battery cavity are connected with the battery management module;

the battery management module is provided with an instantaneous large current prevention module; the instantaneous large current prevention module is used for preventing instantaneous large current from occurring when charging power supplies with different voltages are conducted.

Further, the plurality of models include a data acquisition interface, a USB interface, and a first DC interface.

Further, the electric conductor is a battery buckle.

Furthermore, an LED lamp is arranged on the side wall of the shell.

Furthermore, the battery management module comprises a controller, a first field effect transistor and a second field effect transistor, wherein a grid electrode of the first field effect transistor is respectively connected with an OD end and an OC end of the controller; the drain electrode of the first field effect transistor is connected with the source electrode of the second field effect transistor; and the source electrode of the first field effect transistor is connected with the negative electrode of the battery in the battery cavity.

According to the multifunctional extensible mobile charging power supply, the multifunctional extensible effect of the charging power supply is achieved due to the structural design of the interfaces of various types; through the structural design of the instantaneous high-current prevention module, the problem that the circuit current is overlarge in the inserting moment due to the fact that voltages of the charging power supplies are inconsistent in a plurality of charging power supply parallel systems is solved.

The invention also provides a photovoltaic power box, which adopts the multifunctional extensible mobile charging power supply and further comprises a power box body, wherein:

the charging power supplies are connected through a confluence bottom plate; the battery management module, the charging power supply and the convergence bottom plate are all arranged in the power supply box body; the outer wall of the power supply box body is provided with a photovoltaic panel;

and a plurality of power supply boxes can be connected in parallel or in series.

Furthermore, the charging power supply is connected with the confluence bottom plate through one or more structures of a male plug, a female plug, a pole, a contact piece, a magnetic attraction, a quick plug head, a spring piece and interlocking.

Furthermore, an input and output interface is arranged on one side of the power supply cavity; the input and output interface is provided with a positive and negative serial-parallel interface, a display screen, an output aviation socket, an input quick-plug connector interface, a multi-path USB output interface, a second DC interface and a high-capacity serial-parallel switch which are connected with the battery management module.

Furthermore, one side of the power supply box body is provided with an opening; the opening end is provided with a drawing plate or a turnover cover.

Furthermore, the power supply box body is also provided with a portable intelligent charger; the portable intelligent charger is provided with a 220V power interface, a USB input interface, a USB output interface, a DC output interface and a quick-plug connector interface.

The photovoltaic power supply box that this embodiment provided, convert light energy into the electric energy through the photovoltaic board and charge for the module that charges, energy-concerving and environment-protective, and be applicable to the place that does not have or inconvenient use commercial power to charge such as open air and use. The power utilization requirements of single users and users in groups can be met. The system is particularly suitable for the group organization of a plurality of team members, team groups and the use requirements of engineering operation, field exploration, emergency, rescue and relief work, building construction, emergency, movie and television shooting and military support.

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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

FIG. 1 is a schematic perspective view of a photovoltaic power box according to the present invention;

FIG. 2 is an open state view of the cover of the photovoltaic power box;

FIG. 3 is a view of an open state of a photovoltaic panel in the photovoltaic power box;

FIG. 4 is another open state view of the photovoltaic panel in the photovoltaic power box;

FIG. 5 is a schematic diagram of a rectangular charging power supply;

FIG. 6 is a left side view of FIG. 5;

FIG. 7 is a right side view of FIG. 5;

FIG. 8 is a schematic diagram of a cylindrical charging power supply;

FIG. 9 is an exploded view of a cylindrical charging source;

FIG. 10 is a side view of a photovoltaic power box;

FIG. 11 is a schematic diagram of a battery management module;

FIG. 12 is a schematic view of the assembly of the charging power supply and the bus bar base;

FIG. 13 is a circuit schematic of the buss bar substrate of FIG. 12;

FIG. 14 is a battery management module logic diagram;

fig. 15 is a schematic diagram of a portable smart charger.

Reference numerals:

10 charging power supply 11 casing 12 battery

13 positive and negative electrode port 14 data acquisition port 15 battery buckle

16 charging power supply control module 17 LED lamp 18 USB interface

19 first DC interface 20 power supply box 21 confluence bottom plate

23 photovoltaic panel 24 input/output interface 25 flip cover

27 handle 28 drawer plate 29 side cover plate

30 portable intelligent charger 31220V power interface 32 USB input interface

33 USB output interface 34 DC output interface 35 quick-plug type connector interface

241 positive and negative series-parallel interface 242 display screen 243 output aviation socket

244 input quick-connect connector interface 245 USB output interface 246 second DC interface

247 high-capacity series-parallel switch

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "couple" or "couples" and the like are not restricted to physical or mechanical connections, but may include electrical connections, optical connections, and the like, whether direct or indirect.

The embodiment of the invention provides a multifunctional extensible mobile charging power supply and a photovoltaic power supply box, wherein the multifunctional extensible mobile charging power supply 10 comprises a shell 11; a battery cavity 111 and interfaces of various types are arranged on the shell 11; the interfaces of various types and the conductors in the battery cavity 111 are all connected with the battery management module;

the battery management module is provided with an instantaneous large current prevention module; the instantaneous large current prevention module is used for preventing instantaneous large current from occurring when the charging power supplies 10 with different voltages are switched on.

In specific implementation, as shown in fig. 1 to 10, the multifunctional expandable mobile charging power supply 10 includes a housing 11; a battery cavity 111 and interfaces of various types are arranged on the shell 11; the battery cavity 111 is used for accommodating a plurality of batteries 12; a plurality of batteries 12 are connected in series or in parallel; the power input/output interfaces of various types and the conductors in the battery cavity 111 are connected with the battery management module; the shell 11 is provided with positive and negative electrode ports 13 for outputting electric energy;

the battery management module is provided with an instantaneous large current prevention module; the instantaneous large current prevention module is used for preventing instantaneous large current from occurring when the charging power supplies 10 with different voltages are conducted.

The charging power supply 10 is designed to have energy of 15wh-100 wh. Preferably 35wh-55w of electricity.

Preferably, the shape of the battery 12 is square, cylindrical or other shape. Preferably cylindrical 18650 cells.

Preferably, the battery 12 is a lithium battery.

Preferably, the positive and negative ports 13 are disposed on the same side, and the contact structure between the positive and negative ports 13 and other devices includes, but is not limited to, a male and female plug, a post, a contact piece, a magnetic attraction, a quick plug, a spring piece, an interlock, and the like. The connection is preferably pole and magnetic attraction, and all power supply modules adopt a positive and negative contact mode with uniform specification and model.

According to the multifunctional extensible mobile charging power supply provided by the embodiment of the invention, the multifunctional extension effect of the charging power supply is realized through the structural design of the interfaces of various types; through the structural design of the instantaneous high-current prevention module, the problem that the circuit current is overlarge in the inserting moment due to the fact that voltages of the charging power supplies are inconsistent in a plurality of charging power supply parallel systems is solved.

Preferably, the housing 11 is rectangular or circular in cross-section.

Preferably, the plurality of models includes the data acquisition interface 14, the USB interface 118, and the first DC interface 19.

In specific implementation, the contact structure between the data acquisition interface 14 and other components is magnetic attraction, a spring plate, a contact piece, or the like. Preferably magnetically.

Preferably, the positive and negative electrode ports 13 and the data acquisition interface 14 can be integrated into the same component, so as to save space.

Preferably, the electrical conductor is a battery catch 15.

In particular embodiments, the battery clip 15 includes, but is not limited to, a spring, a bracket, a magnet, an interlock, etc. Preferably a spring and an interlocking structure.

Preferably, the side wall of the housing 11 is provided with an LED lamp 17.

During specific implementation, the side wall of the shell 11 is provided with the LED lamp 17, and the LED lamp 17 is in communication or electric connection with the battery management module and used for illumination and/or fault indication.

Preferably, the battery management module comprises a controller, a first field effect transistor and a second field effect transistor, wherein the first field effect transistor and the second field effect transistor form an instantaneous high-current prevention module, and a grid electrode of the first field effect transistor is respectively connected with an OD end and an OC end of the controller; the drain electrode of the first field effect transistor is connected with the source electrode of the second field effect transistor; the source of the first fet is connected to the negative terminal of the battery 12 in the battery chamber 111.

In specific implementation, as shown in fig. 11, since the single charging source 10 itself can be used as a single power source, because the single use states are different, the charge amount of each charging source 10 is different, and when the charging source is inserted (or returned) into the power box after use, the voltage difference of each charging source 10 is not noticed by the conventional power manager, so that when the charging source is inserted, the instantaneous current of the circuit is too large, the circuit is easily damaged, and the service lives of the circuit and the charging module 10 are reduced. In addition, the charging power source 10 in the embodiment adopts a parallel structure, because the internal resistance of the charging power source 10 is only 10-20 milliohms, when the voltage difference between the charging power sources 10 is only 4V, the current can reach 200-300A.

Therefore, in this embodiment, in addition to the overcurrent control of charging and discharging on the controller, the diode and the MOS switch are used for dual protection to control the instantaneous large current on the base, and meanwhile, the MOS switch and the main control board have communication capability, so that whether the current is released or not can be selected after active identification. The active identification means that the communication function of the BMS band of the power supply box can be interacted with the communication function in the BMS management of each unit module, and the on-off of the MOS switch is controlled through communication.

The implementation logic:

as shown in fig. 14, when a plurality of charging power supplies 10 (subsystem modules) have voltage differences and are connected in parallel, the MOS controlled switch mounted on the power base turns off and the diode implements double protection. After the voltage state of each charging power supply 10 is detected, the controller selectively closes the controllable switch (including but not limited to a relay and an MOS transistor), and starts to supplement power to the power supply with the lower voltage in each charging power supply 10 until the charging amount of all the charging power supplies 10 is consistent. Because the controller is connected with the unique number charging power supply 10 for communication, the charging power supply 10 can be in communication connection and one-to-one connection at any position, and the controller can perform single power supplement on a single sub-power supply module and can perform power supplement on the whole module in stages (for example, the minimum power is supplemented to the next-lowest power, the next-lowest power is supplemented together, and the rest is performed until all the sub-power supplies are supplemented).

Preferably, the battery management module is a BMS module, and has a capability of managing the operation state of the battery, preventing the battery from being overcharged and overdischarged, and having a capability of communicating with the power box.

The invention further provides a photovoltaic power box, which adopts the multifunctional extensible mobile charging power supply, and further comprises a power box body 20, wherein:

the charging power supplies 10 are connected through a confluence bottom plate 21; the battery management module, the charging power supply 10 and the confluence bottom plate 21 are all arranged in the power supply box body 20; the outer wall of the power supply box body 20 is provided with a photovoltaic panel 23; a plurality of the power supply boxes 20 can be connected in parallel or in series.

During specific implementation, photovoltaic power supply box adopts as above arbitrary multi-functional scalable portable charging source, still includes hollow power supply box 20, wherein:

as shown in fig. 13, the bottom of the power supply box 20 is provided with a confluence bottom plate 21; a plurality of charging power supplies 10 are connected with the confluence bottom plate 21; the battery management module, the charging power supply 10 and the confluence bottom plate 21 are all arranged in the power supply box body 20; the outer wall of the power supply box body 20 is provided with a photovoltaic panel 23, and the photovoltaic panel 23 charges the charging module 10 in the power supply box body 20 through a battery management module. The photovoltaic panel 23 is generally a high-power single crystal photovoltaic panel, and is characterized by high power generation and high power generation efficiency. The photovoltaic panel can be a single piece with the same frame size as the power box, and can also be a plurality of pieces with the same frame size and foldable type.

The photovoltaic power supply box that this embodiment provided, convert light energy into the electric energy through photovoltaic board 23 and charge for the module that charges, energy-concerving and environment-protective, and be applicable to the place that does not have or inconvenient use commercial power to charge such as open air and use. The single charging module 10 can be detached for independent use, the power consumption requirement of a single user is met, the charging power supply 10 used for external use can be replaced with the charging module in the photovoltaic power supply box body 20 at will, the electric quantity in the single photovoltaic power supply box can be expanded as required, and the use requirements of various occasions and electric quantity can be met.

Meanwhile, the plurality of photovoltaic power boxes can be connected in series, so that electric energy expansion among the plurality of photovoltaic power boxes is realized, high-voltage and high-capacity energy storage effects are achieved, and the power utilization requirements of a group can be met.

The photovoltaic power supply box that this embodiment provided breaks through traditional portable power source's limitation, and through the standardized battery of lectotype and standardized power module last group for the mark conversion power supply box. The single power supply box has the characteristics of large capacity, light weight and multiple functions.

In addition, the conventional power supply has series-parallel limitation, when a certain charging power supply 10 is lost or fails, the problem that the whole photovoltaic power supply box cannot be used is caused, and the lack or the failure of any power supply module of the photovoltaic power supply box provided by the embodiment does not influence the application of the whole power supply box. The power box BMS band communication function can interact with the communication function in the BMS management of each unit module, and the on-off of the MOS switch is controlled through communication. The power modules in the power box all adopt a parallel mode, and when the power modules are lacked, only the output capacity is influenced, and the whole power box cannot be failed or work. The system is particularly suitable for the group organization of a plurality of team members, team groups and the use requirements of engineering operation, field exploration, emergency, rescue and relief work, building construction, emergency, movie and television shooting and military support.

Preferably, the charging power supply 10 is connected to the bus base plate 21 through one or more of a male-female plug, a pole, a contact piece, a magnetic attraction, a quick plug, a spring piece, and an interlock.

In specific implementation, the contact/fixing manner of the bus base plate 21 and the charging power supply 10 may be a connection manner such as male and female plugs, poles, contact pieces, magnetic attraction, quick plug heads, spring pieces, interlocking, and the like. The preferred wiring mode is a pole column and a magnetic absorption mode. And all the charging power supplies 10 can be arranged at any position of the power box base in a uniform contact mode.

Preferably, the confluence bottom plate 21 is made of a material including but not limited to a copper plate, an aluminum plate or a nickel-copper alloy, and a positive circuit structure and a negative circuit structure are arranged on the confluence bottom plate 21; the positive and negative circuits are provided with a plurality of transverse circuits in a staggered manner; the left side of the positive transverse circuit is conducted, and the right side of the negative circuit is conducted; and a plurality of charging circuit 10 connection points are arranged between the transverse circuits of the adjacent positive and negative circuits. The charging power supplies 10 are arranged through the bus bar chassis 21; the arrangement of the charging power sources 10 may be in series, parallel or a combination of series and parallel. And designing a serial-parallel mode according to the use requirement.

Preferably, the batteries 12 within the charging power supply 10 are connected in series; and a plurality of the photovoltaic power boxes are connected in parallel.

Preferably, an input/output interface 24 is arranged on one side of the power supply cavity 201; the input/output interface 24 is provided with a positive/negative serial-parallel interface 241, a display 242, an output aviation socket 243, an input quick-plug connector interface 244, a multi-path USB output interface 245, a second DC interface 246 and a high-capacity serial-parallel switch 247, which are connected with the battery management module.

Preferably, one side of the power supply box 20 is open; the open end is provided with a pull plate 28 or a flip 25.

In specific implementation, one side of the power supply box body 20 is opened; the opening end is provided with a drawing plate 28 or a turnover cover 25; the flip design or the pull design is adopted, so that the lithium ion battery and the equipment can be replaced conveniently, and the waterproof performance is improved. The design is preferably a flip-type cover

Preferably, the side wall of the power supply box 20 is provided with a handle 27 for facilitating the hand-carrying movement during use.

Preferably, the photovoltaic panel 23 is foldable.

Preferably, as shown in fig. 15, the power supply box 20 is further provided with a portable intelligent charger 30; the portable intelligent charger 30 is provided with a 220V power interface 31, a USB input interface 32, a USB output interface 33, a DC output interface 34 and a quick-plug connector interface 35. The photovoltaic power box can be charged by connecting the power grid 220V-quick plug type connector interface/DC interface, and the charging power supply module 10 can be charged by connecting the photovoltaic power box USB-USB, and the power box USB-USB is connected to the mobile phone and the lighting appliance to charge them.

Preferably, the USB input interface 32 and the USB output interface 33 both have a power identification function, and the USB input interface 32 and the USB output interface 33 are equipped with 2-4 ports, which have the capability of working simultaneously.

Preferably, the DC output interface 34 is of the 5525 type, having the capability of two simultaneous paths.

Preferably, the output power of the fast-plug connector interface 35 is 200-250W.

Preferably, the controller is a BMS having a function of managing/communicating a power supply of the off-power system and the power supply of the single module; the output and input voltage (5V 12V 24V 36V) can be actively identified; managing to prevent overcharge and overdischarge of the battery module; temperature and thermal management; the NFC/Bluetooth control module is arranged, and the power box can be controlled and adjusted by using the smart phone.

Preferably, a charging power control module 16 is disposed in the charging power supply 10, and the charging power control module 16 includes, but is not limited to, a BMS.

Although terms such as charging power, housing, power supply cabinet, bus backplane, input output interface, flip cover, carrying handle, pull cover, side cover, portable smart charger, etc. are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multifunctional expandable mobile charging power source, characterized in that: the charging power source (10) comprises a casing (11); the casing (11) is provided with a battery cavity (111) and interfaces of various models; Various types of interfaces and conductors in the battery cavity (111) are connected to the battery management module;

The battery management module is provided with an anti-instantaneous high-current module; the anti-instantaneous high-current module is used to prevent an instantaneous large current from occurring when the charging power sources (10) with different voltages are turned on.

2 . The multifunctional expandable mobile charging power source according to claim 1 , wherein the multiple models include a data acquisition interface ( 14 ), a USB interface ( 118 ) and a first DC interface ( 19 ). 3 .

3. The multifunctional expandable mobile charging power source according to claim 1, wherein the electrical conductor is a battery clip (15).

4. The multifunctional expandable mobile charging power source according to claim 1, characterized in that: LED lights (17) are provided on the side walls of the casing (11).

5 . The multifunctional and expandable mobile charging power source according to claim 1 , wherein the battery management module comprises a controller, a first field effect transistor and a second field effect transistor, and the first field effect transistor has 5 . The gate is connected to the OD terminal and the OC terminal of the controller respectively; the drain electrode of the first field effect transistor is connected to the source electrode of the second field effect transistor; the source electrode of the first field effect transistor is connected to the The negative pole of the battery (12) in the battery cavity (111) is connected.

6. A photovoltaic power supply box, characterized in that: adopting the multifunctional expandable mobile charging power supply according to any one of claims 1-5, further comprising a power supply box (20), wherein:

A plurality of charging power sources (10) are connected through a confluence base plate (21); the battery management module, the charging power source (10) and the confluence base plate (21) are all arranged in the power supply box body (20); the power supply box The outer wall of the body (20) is provided with a photovoltaic panel (23);

Several of the power supply boxes (20) can be connected in parallel or in series.

7. The photovoltaic power box according to claim 6, characterized in that: the charging power source (10) and the confluence bottom plate (21) pass through male and female plugs, poles, contact pieces, magnetic suction, quick plugs, springs One or more structural connections among sheets and interlocks.

8 . The photovoltaic power box according to claim 6 , wherein an input and output interface ( 24 ) is provided on one side of the power supply cavity ( 201 ); the input and output interface ( 24 ) is provided with the battery management The positive and negative serial-parallel interface (241), the display screen (242), the output aviation socket (243), the input quick-plug connector interface (244), the multi-channel USB output interface (245), the second DC interface ( 246) and a high-capacity serial-parallel switch (247).

9 . The photovoltaic power box according to claim 6 , wherein the power box body ( 20 ) is open on one side; and the open end is provided with a pull-out plate ( 28 ) or a flip cover ( 25 ). 10 .

10. The photovoltaic power supply box according to any one of claims 6-9, characterized in that: the power supply box (20) is further provided with a portable intelligent charger (30); the portable intelligent charger (30) A 220V power supply interface (31), a USB input interface (32), a USB output interface (33), a DC output interface (34) and a quick-plug connector interface (35) are provided.