CN201069811Y - Mobile energy station - Google Patents

Abstract

A mobile energy station relates to a mobile power supply, in particular to a portable mobile power supply for charging and supplying power to mobile digital equipment. The structure comprises a charger, a rechargeable spare battery device, a vehicle charger, a DC-DC output line and an adapter. The charger and the rechargeable spare battery device are connected by a detachable lock catch. At least two rechargeable spare battery device output interfaces electrically connected with relevant contacts of the circuit board are also arranged on the rechargeable spare battery device upper shell. Has many advantages: an electronic circuit with a protection function and an electric quantity management function is elaborately designed, the protection function adopts a high-precision protection chip, and the electronic circuit has the functions of overcharge, overdischarge, overcurrent and short-circuit protection, so that the safe use of the battery is ensured; the electric quantity management function adopts a microprocessor to intelligently manage the capacity of the battery; the liquid crystal display screen is used for indicating the electric quantity of the battery, the display is visual and accurate, and accurate information about the electric quantity can be provided for people in advance in real time; the capacity is large and exceeds 4000 mah.

Description

A mobile energy station

technical field

The utility model relates to a mobile power supply, in particular to a portable mobile power supply for charging and supplying power to mobile digital devices.

Background technique

The rapid progress of electronic technology has pushed electronic products into the digital age, and various digital electronic products have been continuously introduced to the market, including many digital portable entertainment, communication and other electronic products, such as mobile phones, digital cameras, digital video cameras, MP4, PDA, Portable GPS and Portable DVD etc. How to provide more applicable, more versatile, more durable, safer and more systematic backup power for these portable mobile electronic products is indeed a very important topic.

One, people go out to work, entertain and relax, travel, and make friends outdoor activities are more and more frequent, and the portable digital electronic devices have to be useless after exhausting their own battery power. This rogue situation that cannot work has brought people A lot of inconvenience. The remedial way of prior art is to bring a similar storage battery or battery device, in case digital equipment emergency use. This kind of device has a serious problem of lack of careful design. It does not have protection function and power management function, let alone intelligent management, and it is easy to cause damage to equipment that uses low current. This shortcoming prevents it from being commonly used in most digital devices, because most digital devices have restrictions on input voltage and current; at the same time, such devices lack intelligent display during charging and power consumption, and the internal battery power display is not accurate. Intuitive, the display is not accurate, and it cannot provide people with accurate information about the power in real time in advance; it also lacks versatility and portability.

Its two, the prior art mentioned in the previous paragraph brings a remedial method similar to a storage battery or a battery device, and there is also a point that cannot be ignored, that is, the capacity is small, and it has become a common reality to use a mobile phone to watch TV outside, which requires Portable backup power supplies have a high electrical energy capacity.

Its three, automobile has become the tool of the masses, should be installed in the storage battery of automobile as the standby power source of portable mobile digital equipment and design, and the portable applicable device that supporting vehicle storage battery charges and supplies power to mobile digital equipment.

Fourth, the supporting chargers for the current portable digital electronic products are generally not universal. When people go out, they may carry several digital electronic products with them. Increase, mobility is inconvenient, and it is easy to confuse or lose track of things.

Fifth, there are quite a few patents related to mobile power supply devices that provide backup power for portable digital products, such as mobile chargers, adding electric storage devices, integrating the system on the central processing unit, etc., but generally only stay in the The general idea has no substantive technical content, the implementation plan is not specific, and it does not have operability.

Utility model content

The utility model aims at the above-mentioned deficiencies in the prior art, and introduces a battery with AC and DC charging functions, charging and discharging protection functions, intelligent power management functions and accurate power display, and is suitable for mobile phones, digital cameras, digital video cameras, MP4, PDA, portable A mobile energy station that provides high-capacity backup power for portable mobile electronic products such as GPS and portable DVD. The design concept of this utility model focuses on providing a shared, supporting, all-round, Convenient, safe, intelligent, accurate display, high-capacity energy system.

In order to achieve the above object, accomplish the above task, the technical scheme of the utility model is as follows:

A mobile energy station of the utility model is constructed, and the structure includes a charger, a rechargeable backup battery device, a car charger, a DC-DC output line (DC regulator) and an adapter.

The charger includes a disc-shaped charger lower shell, and a circuit board with a charging circuit is installed in the charger lower shell; the pin plug male end as an alternating current (AC) input terminal is fastened to the charger lower shell and connected to the charging circuit. The AC input end of the board is electrically connected; the connector connected with the relevant contacts of the circuit board is fastened to the circuit board or the lower case of the charger, and its contacts extend upwards from the bottom of the upper case of the charger; the upper case of the charger It is disc-shaped, and its lower bottom fits on the upper edge of the lower case of the charger, and the two are fastened and connected as an integral structure.

The rechargeable backup battery device includes a disc-shaped body with a rechargeable backup battery device lower case that matches the charger upper case, a high-capacity battery and a circuit board with a protection function and a power management function circuit, and an EL drive module board. In the lower case of the rechargeable backup battery device; the bottom surface of the lower case of the rechargeable backup battery device and the corresponding position of the connector protruding from the charger upper case are installed with contact pieces, and extend downwards from the bottom surface of the lower case of the rechargeable backup battery device Contact with the contacts of the connector one by one, and the contact piece is electrically connected with the relevant contacts of the circuit board; the upper case of the rechargeable backup battery device with the lens nameplate installed on the upper side and the lower case cover of the rechargeable backup battery device Combined with fastening and connection as an integral structure; at least two output interfaces of the rechargeable backup battery device that are electrically connected to the relevant contacts of the circuit board are installed on the upper shell of the rechargeable backup battery device.

The charger and the rechargeable backup battery device are connected by a detachable lock.

The car charger includes a car matching plug, a car charger main body, wiring and a plug, the car supporting plug is connected with the car charger main body, and a circuit board with a car charging circuit is installed in the car charger main body , the input end of the car charging circuit board is electrically connected to the contact point of the supporting plug for the car, the output end of the car charging circuit board is electrically connected to the plug through wiring, and the car charging charger also includes a display device arranged on the main body of the car charging charger.

The DC-DC output line includes a DC-DC plug matching the output interface of the rechargeable backup battery device, a DC-DC main body, wiring and plugs, a DC circuit board with a DC circuit is installed in the DC-DC main body, and the DC-DC plug The input end of the DC-DC plug is inserted into the output interface of the rechargeable backup battery device, the output end of the DC-DC plug is electrically connected to the input end of the DC circuit board through wiring, and the output end of the DC circuit board is electrically connected to the plug through wiring.

The detachable lock structure that connects the charger and the rechargeable backup battery device includes a lock installed on the right end of the lower shell of the charger, and the left and right ends of the horizontal bars of the strip lock each have an upward protruding Left claw buckle, right grasping buckle, the horizontal bar has an upwardly extending upper grasping buckle on the right side, its left claw buckle protrudes upward through the lower bottom of the charger upper case, and its right grasping buckle extends rightward under the charger The right end of the shell is exposed outside the charger and can be twitched outwards. The upper claw buckle is buckled upwards to the right end of the charger upper shell and exposed to the inner surface of the charger upper shell and the rechargeable backup device installed on the charger upper shell. In the buckle opening of the right end of the lower case of the battery device, there is also a convex buckle on the inner surface of the left end of the charger upper case to match the concave buckle on the left end of the lower case of the rechargeable spare battery device.

An indicator light is also installed at the right end of the charger upper shell, and the light is controlled by a circuit with a protection function and a power management function and an EL drive module circuit.

Buttons are also installed on the upper shell of the rechargeable backup battery device, and the buttons are electrically connected with the microcontroller MCU.

The plug of the DC-DC output line and the plug of the car charger are plugged with the adapter that matches the charging plug of the specific connected digital equipment, and one end of the adapter is connected to the plug of the DC-DC output line, the car The plug of the charging charger is matched and plugged in, and the other end is matched and plugged in with the charging plugs of various digital devices respectively, so that the output interface of the charging backup battery device of the present utility model can be connected with various digital devices of different brands. The charging plugs are conveniently plugged into each other.

A charging circuit is arranged on the charging circuit board, and the charging circuit includes an AC input circuit, an AC-DC circuit, a switch circuit, a constant voltage circuit, a PWM modulation circuit, a constant current circuit, a battery communication circuit, a state indication circuit, and a charger output; The AC input circuit, which is responsible for safety protection such as overcurrent protection, surge suppression, and anti-interference circuit, inputs AC into the AC-DC circuit to obtain DC voltage input switch circuit; the switch circuit converts the front-end high-voltage DC voltage into a rechargeable backup battery device. The voltage output to the constant voltage circuit, and output from the charger output; the switch circuit is connected with the PWM modulation circuit and controlled by the PWM modulation circuit, the main function of the PWM modulation circuit is to adjust the conduction width of the electronic switch of the switch circuit; PWM The modulation circuit is also connected with the constant voltage circuit, the constant current circuit, and the battery communication circuit respectively, and is controlled by the constant voltage circuit, the constant current circuit, and the battery communication circuit; the function of the constant voltage circuit is to sample the voltage state of the rechargeable backup battery device Send to the PWM modulation circuit at the front end, the function of the constant current is to sample the charging current and send it to the PWM modulation circuit, the function of the battery communication circuit is to communicate with the battery, and send the battery signal to the PWM modulation circuit; the status indication circuit They are respectively connected to the constant voltage circuit, constant current circuit, and charger output, and are controlled by the constant voltage circuit and constant current circuit to indicate the status of the charger; the output terminal of the charger is also connected to the constant current circuit and the battery communication circuit.

Install circuits with protection functions and power management functions on circuit boards with protection functions and power management functions, including IC circuits, MOS tubes, LDO circuits, voltage acquisition circuits, microcontroller MCU circuits, LCD display circuits, buttons, IC Collect and monitor the voltage of each cell in the rechargeable backup battery device and the current flowing through the rechargeable backup battery device to output control signals to the MOS tube; Power supply; the voltage acquisition circuit collects the voltage of the rechargeable backup battery device and provides it to the controller MCU, and the MCU controls the LCD to display the discharge icon of the rechargeable backup battery device and the power grid of the rechargeable backup battery device, indicating that the rechargeable backup battery device is in a discharge state and other Existing capacity information.

The LDO in the circuit of the EL drive module board is powered by a rechargeable backup battery device, and the output voltage is sent to the EL booster circuit by triggering the button, and the EL booster circuit generates the high voltage required by the EL cold light sheet and the matching frequency power supply to the cold light sheet. its lit.

A circuit board is arranged in the main body of the car charger, and the circuit board is provided with a car charging circuit, which includes an input circuit, a DC-DC circuit, an output circuit, a PWM modulation circuit, a voltage sampling circuit, an indicating circuit, and a current sampling circuit; the input circuit Filter the ripple in the input vehicle DC voltage and output it to the DC-DC circuit, the DC-DC circuit converts the input DC voltage into the charging voltage required by the rechargeable backup battery device and outputs it to the output circuit, DC-DC The circuit is also connected with the PWM modulation circuit and controlled by the PWM modulation circuit; the voltage sampling circuit samples the voltage signal at the output of the output circuit to the PWM modulation circuit to adjust the output voltage; the current sampling circuit samples the current signal during charging to the PWM modulation circuit In order to achieve the purpose of the control circuit; the indication circuit indicating the working state of the vehicle charging is respectively connected with the voltage sampling circuit and the current sampling circuit; the output circuit filters out the ripple in the output DC voltage to ensure the rechargeable backup battery device obtained The DC voltage ripple is small; the function of the PWM modulation circuit is to adjust the conduction width of the electronic switch in the DC-DC circuit to achieve the purpose of controlling the output voltage and current.

A circuit board with a DC circuit is arranged in the DC-DC main body, and the DC circuit includes an input circuit, a DC-DC circuit, an output circuit, an indicating circuit, a PWM modulation circuit, a voltage sampling circuit, and a current sampling circuit, and the input ripple AC The voltage filtered input circuit outputs to the DC-DC circuit, and the DC-DC circuit converts DC to DC and outputs to the output circuit, which is also a ripple suppression circuit; the DC-DC circuit is also connected to the PWM modulation circuit and controlled by PWM modulation circuit; the voltage sampling circuit samples the output voltage to the PWM modulation circuit; the current sampling circuit samples the load current after the load to the PWM modulation circuit; the indicating circuit is connected to the output terminal of the input circuit.

Compared with the prior art, a mobile energy station of the utility model has many advantages: First, the electronic circuit with protection function and power management function is carefully designed, and the protection function adopts a high-precision protection chip, which has the functions of overcharging, overdischarging, Over-current and short-circuit protection to ensure the safe use of the battery; the power management function adopts the microprocessor to intelligently manage the battery capacity; secondly, the liquid crystal display is used to indicate the battery power, the display is intuitive and accurate, and it can provide accurate information to people in real time in advance. Information about electricity; third, the capacity is large, exceeding 4000mah; fourth, it is a portable device that supports car batteries to charge and supply power to mobile digital devices; fifth, when people go out, they no longer need to bring a bunch of matching chargers device, the utility model can charge a variety of portable digital devices; Sixth, the charger and the rechargeable backup battery device of the utility model are connected by a detachable and closable lock, and are specially designed to be equipped with a portable rechargeable backup battery device. The shoulder bag can be carried around, which is very convenient; Seventh, the utility model has designed at least two rechargeable backup battery device output interfaces, which can charge and supply power to at least two portable digital devices at the same time.

Description of drawings

Figure 1a is a schematic diagram of the appearance and structure of the rechargeable backup battery device of the present invention (top view);

Figure 1b is a schematic diagram of the appearance and structure of the rechargeable backup battery device of the present invention (left view);

Figure 1c is a schematic diagram of the appearance and structure of the rechargeable backup battery device of the present invention (front view);

Fig. 2 is the explosion diagram of the combination of charger and rechargeable backup battery device of the present utility model;

Fig. 3a is a structural schematic diagram (front view) of a car charger;

Figure 3b is a schematic structural diagram of a car charger (right view);

Fig. 4 is a schematic structural diagram of a DC-DC output line;

Figure 5a is a schematic structural view of one of the adapter series (left view of Figure 5b);

Figure 5b is a schematic structural view (front view) of one of the adapter series;

Figure 5c is a schematic structural view of one of the adapter series (the right view of Figure 5b);

Figure 5d is a schematic structural view of one of the adapter series (the top view of Figure 5b);

Figure 5e is a schematic structural view of one of the adapter series (the rear view of Figure 5b);

Fig. 5f is a structural schematic diagram of the second in the adapter series (the left view of Fig. 5g);

Fig. 5g is a structural schematic diagram (front view) of the second in the adapter series;

Fig. 5h is a structural schematic diagram of the second of the adapter series (the right view of Fig. 5g);

Figure 5i is a schematic structural diagram of the second of the adapter series (the enlarged illustration of A in Figure 5j);

Fig. 5j is a structural schematic diagram of the second of the adapter series (attached view of Fig. 5g);

Fig. 5k is a structural schematic diagram of the second of the adapter series (rear view of Fig. 5g);

Fig. 5L is a structural schematic diagram of the third in the adapter series (the left view of Fig. 5m);

Fig. 5m is a structural schematic diagram (front view) of the third in the adapter series;

Fig. 5n is a structural schematic diagram of the third in the adapter series (the right view of Fig. 5m);

Figure 5p is a schematic structural view of the third adapter series (the enlarged illustration of B in Figure 5q);

Fig. 5q is a structural schematic diagram of the third in the adapter series (top view of Fig. 5m);

Fig. 5r is a structural schematic diagram of the third in the adapter series (rear view of Fig. 5m);

Fig. 6a is a structural schematic diagram (front view) of a rechargeable backup battery device carrying a satchel;

Fig. 6b is a structural schematic diagram (side view) of the rechargeable backup battery device carrying a satchel;

Fig. 6c is a structural schematic diagram (bottom view) of the rechargeable backup battery device carrying a satchel;

Fig. 7 is a schematic block diagram of the charging circuit;

Fig. 8 is a schematic diagram of a circuit block with a protection function and a power management function;

Fig. 9 is a schematic diagram of a circuit block of an EL driver module board;

Fig. 10 is a block diagram of a car charging circuit;

Fig. 11 is a block diagram of a DC circuit;

Figure 12 is a charging circuit diagram;

Fig. 13 is a circuit diagram with protection function and power management function;

Figure 14 is a circuit diagram of the EL driver module board;

Figure 15 is a car charging circuit diagram;

Fig. 16 is a DC circuit diagram.

In the picture:

2. Button;

3. Lens nameplate;

4. The upper case of the rechargeable backup battery device, 41. The output interface of the rechargeable backup battery device;

5. Circuit boards with protection functions and power management functions;

6. EL driver module board;

7. Batteries;

8. The lower shell of the rechargeable backup battery device;

9. Indicator light;

10. Contact piece;

11. The upper shell of the charger;

12. Plug connector;

13. Connector circuit board;

14. Circuit board;

15, lock buckle, 151, horizontal bar, 152, left claw buckle, 153, right claw buckle, 154, upper claw buckle;

16. Charging circuit board;

17. Pin plug male end;

18. The lower case of the charger;

19. Pin plug female end;

20. AC plug cover;

21. The lower cover of the AC plug;

22. AC terminal;

23. Car charger, 231. Car supporting plug, 232. Car charger body, 233. Wiring, 234. Plug, 235. Car charger display device;

24. DC-DC output line; 241. DC-DC plug, 242. DC-DC main body, 243. Wiring, 244. Plug;

25. Adapter;

26. A carrying bag for a rechargeable spare battery device.

Detailed ways

Below, in conjunction with accompanying drawing, introduce the specific embodiment of the present utility model.

As shown in the figure, the structure of the utility model includes a charger, a rechargeable backup battery device, a car charger (23), a DC-DC output line (24) and an adapter (25).

As shown in Fig. 1a, Fig. 1b, Fig. 1c, and Fig. 2, the charger includes a disc-shaped charger lower case (18), and a circuit board (16) with a charging circuit is installed in the charger lower case (18); The pin plug male end (17) as the alternating current (AC) input end is fastened on the charger lower case (18) and is electrically connected with the AC input end of this circuit board (16); Connect with the relevant contact point of this circuit board (16) The connector (12) is fastened to the circuit board (16) or the lower case of the charger (18), and its contacts extend upwards from the bottom of the upper case of the charger (11); the upper case of the charger (11) It is disc-shaped, and its lower bottom fits on the upper edge of the lower case of the charger (18) and the two are fastened and connected into one structure;

As shown in Fig. 1a, Fig. 1b, Fig. 1c, and Fig. 2, the rechargeable backup battery device includes a rechargeable backup battery device lower case (8) that matches the charger upper case (11) with a disc-shaped body, The high-capacity battery cell (7), the circuit board (5) and the EL drive module board (6) of the circuit with protection function and power management function are installed in the lower case (8) of the rechargeable backup battery device; the rechargeable backup battery device The bottom surface of the lower case (8) and the corresponding position of the connector (12) stretching out the charger upper case (11) are installed with the contact piece (10), and stretch out the bottom surface of the lower case (8) of the rechargeable backup battery device downwards and The contacts of the connector (12) are contacted one by one, and the contact piece (10) is electrically connected with the relevant contacts of the circuit board (5); the rechargeable backup battery device of the lens nameplate (3) is installed on its upper side The upper case (4) and the lower case (8) cover of the rechargeable backup battery device are combined and fastened to form an integral structure; At least two rechargeable backup battery device output interfaces (41).

The charger and the rechargeable backup battery device are connected by a detachable lock.

As shown in Fig. 3a and Fig. 3b, the car charger (23) comprises a vehicle matching plug (231), a car charging charger main body (232), a wiring (233) and a plug (234), and the vehicle matching plug (231) is connected as a whole with the car charger main body (232), and the car charging circuit board with car charging circuit is installed in the car charger charger main body (232), and the input terminal of the car charging circuit board is connected with the vehicle matching plug (231 ), the output terminal of the car charging circuit board is electrically connected with the plug (234) through wiring (233), and the car charging charger (23) also includes a display device (235) arranged thereon.

As shown in Figure 4, the DC-DC output line (24) includes a DC-DC plug (241), a DC-DC main body (242), and a wiring (243) that match the output interface (41) of the rechargeable backup battery device. And plug (244), the DC circuit board with regulating DC circuit is installed in the DC-DC main body (242), the access end of DC-DC plug (241) is inserted and connected to the rechargeable backup battery device output interface (41), DC- The output end of the DC plug (241) is electrically connected to the input end of the DC circuit board through wiring, and the output end of the DC circuit board is electrically connected to the plug (244) through the wiring (243).

As shown in Figure 2, the detachable lock structure that connects the charger and the rechargeable backup battery device includes a lock (15) installed on the right end of the charger lower case (18), and the strip lock (15) The left and right end of the horizontal bar (151) of ) each has a left claw button (152) and a right claw button (153) protruding upwards, and the horizontal bar (151) has an upper slanted claw button (154) on the right. ), its left claw buckle (152) protrudes upward through the lower bottom of the charger upper shell (11), and its right claw buckle (153) stretches out to the right, and the right end of the charger lower shell (18) is exposed to the charger It can be twitched outwards, and its upper claw buckle (154) is buckled upwards on the right end of the charger upper case (11) and is exposed on the inner surface of the charger upper case (11) and is installed on the charger upper case (11). In the buckle on the outer surface of the right end of the rechargeable spare battery device lower case (8), there is also a convex buckle on the inner surface of the left end of the charger upper shell (11) and the outer surface of the left end of the lower case of the rechargeable spare battery device (8). Debossed buckle fits.

As shown in Figure 1a, Figure 1b, Figure 1c, and Figure 2, an indicator light (9) is also installed on the right end of the charger upper shell (11), and the indicator light (9) is controlled by a circuit with a protection function and a power management function and the EL Drive module circuit control.

As shown in Fig. 1a, Fig. 1b, Fig. 1c and Fig. 2, a button (2) is also installed on the upper case (4) of the rechargeable backup battery device, and the button (2) is electrically connected to the microcontroller MCU.

As shown in Figure 5b, Figure 5g, and Figure 5m, the plug (244) of the DC-DC output line and the plug (234) of the car charger are the same as the adapter (25) that matches the charging plug of the connected digital device. ), one end of the adapter (25) is matched with the plug (244) of the DC-DC output line and the plug (234) of the car charger, and the other end is respectively connected with a variety of digital The equipment charging plug is matched and plugged in, so that the output interface (41) of the charging backup battery device of the present utility model can be plugged in conveniently with charging plugs of various digital devices of different brands.

The plug (244) of the DC-DC output line has the same structure and model as the plug (234) of the car charger; the structure and model of the wiring (243) of the DC-DC output line and the car charger (233) same.

As shown in Figure 2, the utility model is also equipped with an AC plug, and the AC plug upper cover (20) and the AC plug lower cover (21) are integrally formed, and the AC plug upper cover (20) passes through the pin-type plug female end base Tightly connect the pin plug female end (19) that is matched with the pin plug male end (17) installed on the charger lower shell (18), respectively complying with the AC plug standards of the United States, Britain, Europe, Australia, etc. (i.e. The AC terminal (22) conforming to at least one country's AC plug standard is installed on the AC plug upper cover (21).

As shown in Figure 6a, the utility model is also equipped with a rechargeable backup battery device carrying a satchel (26), which can be carried around and is very convenient.

Electric core (7) of the present utility model is selected as MCR18650 type high-capacity lithium-ion battery for use.

As shown in Figures 7 and 12, a charging circuit is set on the charging circuit board (16), and the charging circuit includes an AC input circuit, an AC-DC circuit, a switch circuit, a constant voltage circuit, a PWM pulse width control circuit, and a constant current circuit. , battery communication circuit, status indication circuit, charger output:

The AC input circuit plays the role of safety protection in the entire charger module, including overcurrent protection, surge suppression, anti-interference circuit, etc.; the AC-DC circuit converts the AC input voltage into the DC voltage required by the charger switch circuit. It includes a bridge rectifier circuit and a filter circuit; the switch circuit is the core circuit of the charger, its main function is to convert the front-end high-voltage DC voltage into the voltage required by the battery pack, but at the same time it is controlled by the PWM pulse width Control circuit, the pulse width control circuit is a pulse width controller, its main function is to adjust the conduction width of the electronic switch in the switching circuit, and at the same time controlled by the constant voltage circuit, constant current circuit and battery communication circuit; the constant voltage circuit The function is to sample the voltage state of the battery pack and send it to the front-end PWM pulse width control circuit; the constant current circuit is to sample the charging current and send it to the PWM pulse width control circuit; the function of the battery communication circuit is to communicate with the battery. And send the battery signal to the PWM pulse width control circuit; the status indication circuit is to indicate the status of the charger, such as: no-load or charging state or fully charged state, it is controlled by the constant voltage circuit, constant current circuit, battery communication circuit .

Combined with the above synthesis, the working status of the circuit module is as follows:

State 1: When the charger is in the AC (AC90-264V) state, if there is no battery load on the charger, the battery communication circuit will send a signal to the front-end PWM pulse width control circuit, so that the charger is in a low power At the same time, a signal will be given to light up the green light of the charger, which means that the charger is in no-load standby;

State 2: When the charger is in the AC (AC90-264V) state, if the battery is correctly loaded into the charger, the battery will send a battery status signal to the battery communication circuit of the charger through the battery communication port of the charger, and the battery will After the communication circuit is converted, the signal is transmitted to the PWM pulse width control circuit. The PWM pulse width control circuit adjusts the pulse width of the switch circuit to make it output the voltage and current required by the battery pack. At the same time, the constant voltage circuit and constant current circuit will charge the current. And the voltage signal is sampled to the PWM pulse width control circuit to control the voltage and current; when the battery communication circuit receives the battery status signal, it will output a signal to turn off the green light of the charger, and the same signal will be given to the status indication circuit. The indicator circuit will indicate that the charger enters the charging mode in the form of alternately flashing red and blue lights;

State 3: When the charger is in the AC (AC90-264V) state, if the battery is correctly loaded into the charger, the battery pack passes through the charger. At this time, the battery passes through the battery communication port of the charger to the battery communication circuit of the charger. The battery status signal, the battery communication circuit is converted, and the signal is transmitted to the PWM pulse width control circuit, the PWM pulse width control circuit adjusts the pulse width of the switch circuit to stop output, and the battery communication circuit will output a Signal to the status indicating circuit, so that the status indicating circuit stops working, the same signal will light up the power indicator light, to indicate that the charger enters the constant voltage charging mode, and also indicates that the battery pack on the charger has been charged to 98% above capacity.

As shown in Figures 8 and 13, a circuit with protection function and power management function is set on the circuit board (5) with protection function and power management function, which includes IC circuit, MOS tube, LDO circuit, voltage acquisition circuit, micro control Device MCU circuit, LCD display circuit, button.

The IC collects and monitors the voltage of each battery cell in the battery pack and the current flowing through the battery pack. When it detects that the voltage of one of the battery cells is lower than the over-discharge voltage value, the IC outputs a control signal to turn off the N-channel MOS tube, so that the battery pack cannot discharge the load; when it is detected that the voltage of one cell is higher than the overcharge voltage value, the IC outputs a control signal to turn off the N-channel MOS tube, so that the battery pack cannot be charged; When the current of the battery pack is higher than the overcurrent value, the IC outputs a control signal to turn off the N-channel MOS tube so that the battery pack cannot discharge the load; when the external load of the battery pack is detected to be short-circuited, the IC outputs a control signal to turn off the N-channel MOS tube, so that the battery pack cannot discharge the load.

The LDO is powered by the battery pack, and outputs a 5V reference voltage to supply power to the MCU. The MCU collects the voltage of the battery pack through the voltage acquisition circuit, and judges the capacity of the battery pack according to the voltage of the battery pack. The information of the capacity is displayed on the LCD through the MCU control. When the battery pack is connected to an external load, the LCD displays the battery discharge icon and the battery pack level, indicating that the battery is in the discharge state and the current capacity information of the battery pack; when the battery pack is connected to an external charger, the LCD displays the battery pack level, indicating that the battery is in The charging status and the capacity information of the battery pack; when the battery pack is in the state of neither discharging nor charging, the MCU is triggered by pressing the button, and the MCU collects the voltage of the battery pack and controls the LCD, so that the LCD displays the current capacity information of the battery pack.

As shown in Figures 9 and 14, the LDO in the EL drive module board circuit is powered by the battery pack, and outputs 5V voltage to the EL boost circuit by triggering the button, and the EL boost circuit generates the high voltage and matching frequency required by the EL cold light film The power supply lights up the EL cold light film.

As shown in Figures 10 and 15, the car charging circuit includes an input circuit, a DC-DC circuit, an output circuit, a PWM modulation circuit, a voltage sampling circuit, an indicating circuit, and a current sampling circuit.

The function of the input circuit is to filter out the ripple in the input DC voltage, and at the same time, it also has the function of protecting some circuits to work in the overcurrent state; the DC-DC circuit is to convert the input DC voltage into a battery pack The required charging voltage is controlled by the PWM modulation circuit; the function of the output circuit is to filter out the ripple in the output DC voltage to ensure that the DC voltage ripple system obtained by the battery pack is small; the function of the PWM modulation circuit is to adjust the DC -The conduction width of the electronic switch in the DC circuit to achieve the purpose of controlling the output voltage and current; the voltage sampling circuit samples the output voltage signal to the PWM modulation circuit to adjust the output voltage; The current signal is sampled to the PWM modulation circuit to achieve the purpose of controlling the circuit; the function of the indicating circuit is to indicate the charging status of the car.

Combined with the above synthesis, the working status of the circuit module is as follows:

State 1: When the car charger has a DC voltage (DC9-27V), if the rechargeable backup battery device is not connected, the voltage sampling circuit of the charger will sample the fixed voltage (DC8.4V) at the time of development and design. At this time, the voltage sampling circuit will input a signal to the PWM modulation circuit, and the PWM modulation circuit will adjust the conduction pulse width of the electronic switch in the DC-DC circuit to achieve a stable output voltage of DC8.4V. At this time, the PWM modulation circuit will give A signal is sent to the indicating circuit to make it indicate a green light, which means that the charger enters the charging standby state;

State 2: When the car charger has a DC voltage (DC9-27V), such as when a rechargeable backup battery device is connected, the voltage state of the battery pack is directly reflected to the PWM modulation circuit in the car charger. Design the specified voltage, the voltage sampling circuit reflects the signal to the PWM modulation circuit, the PWM modulation circuit adjusts the conduction pulse width of the electronic switch in the DC-DC circuit, and controls the output voltage to the voltage required by the battery pack, and at the same time the current sampling circuit will The sampled current signal is transmitted to the PWM modulation circuit. The PWM modulation circuit adjusts the conduction pulse width of the electronic switch in the DC-DC circuit to control the output current to the current required by the battery pack. The voltage sampling circuit and the current sampling circuit simultaneously give Send a signal to the indicating circuit, and the indicating circuit will turn off the green light and turn on the red light through the signals of the voltage sampling circuit and the current sampling circuit. This phenomenon indicates that the charger is in the charging mode and the battery is charging;

State 3: When the car charger has a DC voltage (DC9-27V), such as when a rechargeable backup battery device is connected, the voltage state of the battery pack is directly reflected in the voltage sampling circuit in the car charger. If the battery pack voltage reaches the designed Specify the voltage, at this time, the voltage sampling circuit will reflect the signal to the PWM modulation circuit, the circuit will adjust the conduction pulse width of the electronic switch in the DC-DC circuit, and control the output voltage at a constant DC8.4V, and the current sampling circuit will sample to The current signal is transmitted to the PWM modulation circuit, the PWM modulation circuit adjusts the conduction pulse width of the electronic switch in the DC-DC circuit, reduces the output current to the constant voltage rechargeable battery, and the voltage sampling circuit and the current sampling circuit give signals to the indication at the same time The circuit, indicating that the circuit passes the signal of the voltage sampling circuit and the current sampling circuit, will turn off the red light and turn on the green light. This phenomenon means that the charger enters the constant voltage charging mode, and the battery pack will be charged to more than 95% of its capacity.

As shown in Figures 11 and 16, the DC circuit includes an input circuit, a DC-DC circuit, an output circuit, an indicating circuit, a PWM modulation circuit, a voltage sampling circuit, and a current sampling circuit.

The input circuit is a ripple suppression circuit, which filters out the ripple AC voltage in the input; the DC-DC circuit is a DC-to-DC circuit, which is controlled by a PWM modulation circuit, and the output circuit is also a ripple suppression circuit to filter out In addition to the extremely small output voltage ripple coefficient; the PWM modulation circuit is a pulse width controller, which comprehensively analyzes the signals output by the voltage sampling circuit and the current sampling circuit to control the conduction pulse width of the electronic switch in the DC-DC circuit , to achieve the purpose of controlling the output voltage and current; the voltage sampling circuit samples the output voltage to the PWM modulation circuit, and the PWM modulation circuit adjusts the conduction pulse width of the electronic switch of the DC-DC circuit to achieve the control of the output voltage; the current sampling The circuit samples the load current after the load to the PWM modulation circuit, and the PWM modulation circuit adjusts the conduction pulse width of the electronic switch of the DC-DC circuit to achieve the purpose of output current control; the indicating circuit indicates the power-on state of the DC regulator, As long as the DC regulator is in the state of input, the indicator circuit will indicate a green light at this time, to indicate that the DC regulator has been powered on and can work or is working.

Combining the above synthesis, the working state of this circuit is as follows:

State 1: When the DC regulator is in the state of input voltage (DC5.5V-14V) and no load is connected, the DC regulator will enter the low-power standby state and enter the working mode at any time;

State 2: When the DC regulator is in the state of input voltage (DC5.5V-14V) and the load is connected, the output voltage will be reduced due to the ohmic characteristics of the load. At this time, the voltage sampling circuit will output the voltage Sampling to the PWM modulation circuit, the PWM modulation circuit will adjust the conduction pulse width of the electronic switch in the DC-DC circuit to compensate for the decrease in the output voltage; when the current sampling circuit samples the load current exceeding the design specified value, it will output a signal For the PWM modulation circuit, the PWM modulation circuit will adjust the conduction pulse width of the electronic switch in the DC-DC circuit to reduce the output current value and control the current within the design value; so that the whole circuit can achieve the purpose of constant power output.

When in use, select the AC plug of the AC terminal (22) of the same standard as the AC socket, AC input voltage: power supply voltage AC100-240v, minimum voltage 90v, maximum voltage 264v; input power frequency: 47-63Hz; load 700mA (maximum input The current can reach 750mA) The input current is less than or equal to 100mA.

After charging, the rechargeable spare battery device can be taken off from the charger, put into the carrying bag (25), and be carried with you. Allow the output interface (41) of the charging backup battery device of the present utility model to be plugged in with the DC-DC plug (241) of the DC-DC output line, select the adapter that matches the charging plug of the digital device used and the DC-DC output The plug (244) at the other end of the line is plugged in, and the end of the adapter that matches the charging plug of the digital device can be plugged in with the charging plug of the digital device. When in use, you can observe the charging and discharging of the power and other related displays in real time.

Claims (10)

1. A mobile energy station, comprising a charger, a rechargeable backup battery device, a car charger (23), a DC-DC output line (24) and an adapter (25) in its structure, characterized in that: The charger includes a disc-shaped charger lower shell (18), and a circuit board (16) with a charging circuit is installed in the charger lower shell (18); a pin plug male end (17) as an alternating current (AC) input terminal Fastened to the lower case (18) of the charger and electrically connected to the AC input end of the circuit board (16); the connector (12) connected to the relevant contacts of the circuit board (16) is fastened to the circuit board (16) Or the charger lower shell (18), its contacts extend upwards from the lower bottom of the charger upper shell (11); 18) and the two are fastened and connected as an integral structure; The rechargeable backup battery device includes a rechargeable backup battery device lower case (8) with a disc-shaped body matched with the charger upper case (11), a high-capacity battery cell (7) and a protective function and power management function The circuit board (5) and the EL driver module board (6) of the circuit are installed in the rechargeable backup battery device lower case (8); the bottom surface of the rechargeable backup battery device lower case (8) and the charger upper case ( 11) The contact piece (10) is installed at the corresponding position of the connector (12), and the bottom surface of the lower shell (8) of the rechargeable backup battery device extends downwards to contact the contacts of the connector (12) one by one. The contact piece (10) is electrically connected with the relevant contact point of the circuit board (5); the rechargeable backup battery device upper case (4) and the rechargeable backup battery device lower case (8) of the lens nameplate (3) are installed on its upper side ) cover combined with fastening connection as an integral structure; at least two rechargeable backup battery device output interfaces (41) that are electrically connected to the relevant contacts of the circuit board (5) are also installed on the rechargeable backup battery device upper case (4); The charger and the rechargeable backup battery device are connected by a detachable lock; Described car charger (23) comprises car supporting plug (231), car charger main body (232), wiring (233) and plug (234), and car supporting plug (231) and car charger main body (232) are connected as a whole, and the car charging circuit board with car charging circuit is installed in the car charging charger main body (232), and the input end of car charging circuit board is electrically connected with the contact point of vehicle matching plug (231), and the car charging circuit The output end of the board is electrically connected to the plug (234) through the wiring (233), and the car charger (23) also includes a display device (235) provided thereon; The DC-DC output line (24) includes a DC-DC plug (241) matching the output interface (41) of the rechargeable backup battery device, a DC-DC main body (242), wiring (243) and a plug (244), A DC circuit board with an adjustable DC circuit is installed in the DC-DC main body (242), the access end of the DC-DC plug (241) is inserted into the output interface (41) connected to the rechargeable backup battery device, and the DC-DC plug (241) The output end is electrically connected to the input end of the DC circuit board through wiring, and the output end of the DC circuit board is electrically connected to the plug (244) through wiring (243). 2. A mobile energy station according to claim 1, characterized in that: the detachable lock structure connecting the charger and the rechargeable backup battery device includes a lock installed at the right end of the lower shell (18) of the charger buckle (15), the left and right ends of the bar (151) of the strip lock (15) each have a left claw button (152) and a right grab button (153) protruding upwards, and the bar (151) On the right, there is an upper grabbing button (154) extending obliquely upwards, its left claw button (152) extends upwards through the lower bottom of the charger upper case (11), and its right grabbing button (153) stretches out to the right for charging The right end of the device lower case (18) is exposed outside the charger and can be twitched outwards, and its upper claw buckle (154) is buckled upwards to the right end of the charger upper case (11) and exposed to the charger upper case (11 ) inner watch and the buckle on the outer surface of the right end of the rechargeable spare battery device lower shell (8) installed on the charger upper shell (11), and the inner watch of the left end of the charger upper shell (11) also has a convex buckle and a removable The concave buckle on the left end surface of the charge spare battery device lower shell (8) matches. 3. A mobile energy station according to claim 1, characterized in that: an indicator light (9) is installed on the right end of the charger upper case (11), and the indicator light (9) has a protection function and a power management function Circuit and EL drive module circuit control; The upper shell (4) of the rechargeable backup battery device is also equipped with a button (2), and the button (2) is electrically connected with the microcontroller MCU. 4. A mobile energy station according to claim 1, characterized in that: the plug (244) of the DC-DC output line and the plug (234) of the car charger are the same as the charging plug of the connected digital device Matching adapters (25) are plugged in, and one end of the adapter (25) is matched with the plug (244) of the DC-DC output line and the plug (234) of the car charger respectively. The other end is respectively matched with charging plugs of various digital devices and plugged in. 5. A mobile energy station according to claim 1, characterized in that: it is also equipped with an AC plug, the AC plug upper cover (20) and the AC plug lower cover (21) are integrally formed, and the AC plug upper cover (20 ) is firmly connected to the pin plug female end (19) that matches the pin plug male end (17) installed on the lower shell of the charger (18) through the base of the pin plug female end, and at least conforms to the AC plug of one country Standard AC terminals (22) are installed on the AC plug upper cover (21). 6. A mobile energy station according to claim 1, characterized in that: a charging circuit is set on the charging circuit board (16), and the charging circuit includes an AC input circuit, an AC-DC circuit, a switch circuit, a constant voltage circuit, PWM modulation circuit, constant current circuit, battery communication circuit, status indication circuit, charger output; the AC input circuit, which acts as overcurrent protection, surge suppression, and anti-interference circuit safety protection, inputs AC into the AC-DC circuit to obtain DC Voltage input switching circuit; the switching circuit converts the front-end high-voltage DC voltage into the voltage required by the rechargeable backup battery device, outputs it to the constant voltage circuit, and outputs it from the output terminal of the charger; the switching circuit is connected to the PWM modulation circuit and is controlled by the PWM modulation The main function of the PWM modulation circuit is to adjust the conduction width of the electronic switch of the switching circuit; the PWM modulation circuit is also connected with the constant voltage circuit, constant current circuit, and battery communication circuit respectively, and is controlled by the constant voltage circuit, constant current circuit and The battery communication circuit; the status indication circuit is respectively connected with the constant voltage circuit, constant current circuit, and charger output, and is controlled by the constant voltage circuit and constant current circuit to indicate the status of the charger; the output terminal of the charger also communicates with the constant current circuit and the battery circuit connection. 7. A kind of mobile energy station described according to claim 1, it is characterized in that: the circuit with protection function and power management function is installed on the circuit board (5) with protection function and power management function, and it comprises IC circuit, MOS tube, LDO circuit, voltage acquisition circuit, microcontroller MCU circuit, LCD display circuit, buttons, IC acquisition and monitoring of the voltage of each battery cell in the rechargeable backup battery device and the current flow direction of the rechargeable backup battery device The MOS tube output control signal LDO is powered by the rechargeable backup battery device, which supplies power to the microcontroller MCU and MOS tube; the voltage acquisition circuit collects the voltage of the rechargeable backup battery device and supplies it to the controller MCU, and the MCU controls the LCD to display the rechargeable backup battery device. Discharge icon and grid for rechargeable backup battery units. 8. A mobile energy station according to claim 1, characterized in that: in the circuit of the EL drive module board, the LDO is powered by a rechargeable backup battery device, and the voltage is output to the EL boost circuit by triggering the button, and the EL boosts the voltage. The circuit generates the high voltage required by the EL cold light and the matching frequency power supply to the cold light to light it up. 9. A mobile energy station according to claim 1, characterized in that: a circuit board is set in the main body of the car charger, and a car charging circuit is set on the circuit board, which includes an input circuit, a DC-DC circuit, an output Circuit, PWM modulation circuit, voltage sampling circuit, indicating circuit, current sampling circuit; the input circuit filters the ripple in the input vehicle DC voltage and sends it to the DC-DC circuit, and the DC-DC circuit converts the input DC voltage into The charging voltage required by the rechargeable backup battery device is output to the output circuit, and the DC-DC circuit is also connected to the PWM modulation circuit and controlled by the PWM modulation circuit; the voltage sampling circuit samples the voltage signal at the output end of the output circuit to the PWM modulation circuit for Adjust the output voltage; the current sampling circuit samples the current signal during charging to the PWM modulation circuit to achieve the purpose of controlling the circuit; the indicating circuit indicating the working state of the vehicle charging is connected to the voltage sampling circuit and the current sampling circuit respectively. 10. A mobile energy station according to claim 1, characterized in that: a circuit board with a DC circuit is arranged in the DC-DC main body, and the DC circuit includes an input circuit, a DC-DC circuit, an output circuit, and an indicating circuit , PWM modulation circuit, voltage sampling circuit, current sampling circuit, the input circuit that filters out the ripple AC voltage in the input is output to the DC-DC circuit, and the DC-DC circuit converts the DC to DC output to the output circuit; the DC-DC circuit also Connected to and controlled by the PWM modulation circuit; the voltage sampling circuit samples the output voltage to the PWM modulation circuit; the current sampling circuit samples the load current after the load to the PWM modulation circuit; the indicator circuit is connected to the output terminal of the input circuit .

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