CN215646241U - Portable power source that many lithium batteries package supplied power - Google Patents
Portable power source that many lithium batteries package supplied power Download PDFInfo
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- CN215646241U CN215646241U CN202121488173.4U CN202121488173U CN215646241U CN 215646241 U CN215646241 U CN 215646241U CN 202121488173 U CN202121488173 U CN 202121488173U CN 215646241 U CN215646241 U CN 215646241U
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Abstract
The utility model provides a mobile power supply powered by a plurality of lithium battery packs, which relates to the field of mobile power supply devices and comprises a mobile power supply body and a plurality of lithium batteries, wherein the lithium batteries are arranged inside the mobile power supply body, a wireless charging module is arranged inside the mobile power supply body, a USB power supply module is arranged outside the mobile power supply body, the wireless charging module and the USB power supply module are electrically connected with the lithium batteries, an LCD display screen module is arranged on the upper surface of the mobile power supply body, and an LED lighting module is arranged on the side wall of the mobile power supply body, the mobile power supply body can be powered by the lithium batteries, when the electric quantity of one lithium battery is insufficient, the other lithium battery can be switched to supply power under the condition of no power failure, the electronic equipment which is being charged is prevented from being disconnected in the process of travel, and the cruising ability of the mobile power supply is greatly improved, whole utility model simple structure, convenient operation, safe and reliable, the practicality is high.
Description
Technical Field
The utility model relates to the field of mobile power supply devices, in particular to a mobile power supply powered by multiple lithium battery packs.
Background
Along with the development of scientific technology, portable electronic products such as mobile phones and tablet computers have more and more powerful functions, various intelligent electronic products have more and more large screen sizes and resolution ratios, and the sizes of the products tend to be more, thinner and smaller, so that the electric quantity consumption of various portable digital products is higher and higher, and the volume of a battery capable of being accommodated is smaller and smaller. The portable power source is used for charging the portable device when a user is out (generally, when a power socket is not provided).
In the prior art, a common mobile power supply only supplies power to a single lithium battery, when the service power is large, the single lithium battery supplies power, the endurance time is short, and when the discharge of the single lithium battery is finished, the mobile power supply is shut down, and the lithium battery needs to be replaced to continue to work normally. In order to solve the above problems, the present document provides a mobile power supply powered by multiple lithium battery packs.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a mobile power supply powered by multiple lithium battery packs to solve the technical problem.
In order to solve the technical problems, the utility model adopts the following technical scheme: a mobile power supply powered by multiple lithium battery packs comprises a mobile power supply body and multiple lithium batteries, wherein the multiple lithium batteries are installed inside the mobile power supply body, a wireless charging module is installed inside the mobile power supply body, a USB power supply module is installed on the outer side of the mobile power supply body, the wireless charging module and the USB power supply module are both electrically connected with the multiple lithium batteries, an LCD display screen module is installed on the upper surface of the mobile power supply body, and an LED lighting module is installed on the side wall of the mobile power supply body;
the power supply circuit of the mobile power supply comprises a resistor R13 and a resistor R15, the resistor R13 is connected with the resistor R15 in parallel, a MOS tube Q7 is installed on a line node of the resistor R13 and the resistor R15, the output end of the MOS tube Q7 is connected with the resistor R11 and the resistor R9, the resistor R11 is connected with the resistor R9 in parallel, the MOS tube Q5 is installed on a node of the resistor R11 and the resistor R9, the output end of the MOS tube Q5 is connected with a diode D5 and a diode D7 in parallel, the resistors R1 and R5 are installed behind the diode D5, and the resistor R3 and the resistor R7 are installed behind the diode D7.
Preferably, the number of the lithium batteries is more than or equal to two.
Preferably, when the power supply of the lithium batteries is switched, the mobile power supply is not powered off and is not powered off.
Preferably, for a mobile power supply powered by two or more battery packs, each additional battery pack needs to be provided with one additional power supply circuit.
Preferably, the resistors R13 and R15 have a voltage divider, so that a voltage difference is generated between pin 1 and pin 2 of the MOS transistor Q7, thereby turning on the MOS transistor Q7.
Preferably, the LCD display screen module and the LED lighting module are both electrically connected with the lithium battery.
The utility model has the beneficial effects that:
the mobile power supply body can be powered by a plurality of lithium batteries, when one lithium battery is insufficient in electric quantity, the mobile power supply body can be switched to another lithium battery for supplying power under the condition of no power interruption, the electronic equipment which is being charged is prevented from being disconnected in the journey process, the cruising ability of the mobile power supply is greatly improved, the residual electric quantity of the lithium battery in the mobile power supply body can be directly observed through the arrangement of the LCD display screen module, the LED lighting module can play a role when people need lighting, the whole device is compact and convenient to carry through the arrangement of the lithium batteries in the mobile power supply body, the whole utility model is simple in structure, convenient to operate and capable of supporting the power supply of a plurality of battery packs, and when the battery packs are switched, the mobile power supply is not powered off, and the mobile power supply is not powered off, safe, reliable and high in practicability.
Drawings
FIG. 1 is a block diagram of a mobile power supply powered by multiple lithium battery packs according to the present invention;
FIG. 2 is a power supply circuit diagram of the mobile power supply of the present invention;
reference numerals: 1. a mobile power supply body; 2. a lithium battery; 3. a wireless charging module; 4. a USB power supply module; 5. an LCD display screen module; 6. an LED lighting module.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purposes and the effects of the utility model easily understood, the utility model is further described below with reference to the specific embodiments and the attached drawings, but the following embodiments are only the preferred embodiments of the utility model, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.
Specific embodiments of the present invention are described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1-2, a mobile power supply powered by multiple lithium battery packs comprises a mobile power supply body 1 and multiple lithium batteries 2, wherein the multiple lithium batteries 2 are installed inside the mobile power supply body 1, a wireless charging module 3 is installed inside the mobile power supply body 1, a USB power supply module 4 is installed outside the mobile power supply body 1, the wireless charging module 3 and the USB power supply module 4 are both electrically connected with the multiple lithium batteries 2, an LCD display screen module 5 is installed on the upper surface of the mobile power supply body 1, and an LED lighting module 6 is installed on the side wall of the mobile power supply body 1;
the power supply circuit of the mobile power supply comprises a resistor R13 and a resistor R15, a resistor R13 and a resistor R15 are connected in parallel, a MOS tube Q7 is installed on a line node of the resistor R13 and the resistor R15, the output end of the MOS tube Q7 is connected to the resistor R11 and the resistor R9, the resistor R11 and the resistor R9 are connected in parallel, a MOS tube Q5 is installed on a node of the resistor R11 and the resistor R9, a diode D5 and a diode D7 are connected in parallel to the output end of the MOS tube Q5, resistors R1 and R5 are installed behind a diode D5, and a resistor R3 and a resistor R7 are installed behind a diode D7.
The working principle is as follows:
power supply circuit principle: when the BAT1 is connected with a battery, the BAT1_ control is turned on, voltage is divided by the resistors R13 and R15, so that a voltage difference is generated between the pin 1 and the pin 2 of the MOS transistor Q7, and the MOS transistor Q7 is turned on, that is, the pin 3 voltage of the MOS transistor Q7 is pulled down to 0V, the voltage V + is divided by the resistors R9 and R11, so that a voltage difference is generated between the pin 1 and the pin 2 of the MOS transistor Q5, so that the MOS transistor Q5 is turned on, that is, the pin 3 voltage of the MOS transistor Q5 is raised to a voltage V +, and the V + passes through the diodes D6 and D7, the BAT1 passes through the resistors R1 and R5, and the voltage is divided by the resistors R3 and R7, so that a voltage difference is generated between the pin 1 and the pin 2 of the MOS transistors Q3 and Q1, so that the MOS transistors Q3 and Q1 are turned on, so that the voltage is entered into Vin 1, and the mobile power supply is smoothly.
The principle that the battery is switched without power interruption: for a mobile power supply powered by two or more battery packs, each additional battery pack needs to be provided with one additional power supply circuit. When the mobile power supply is connected with two battery packs for power supply work, a battery pack No. 1 and a battery pack No. 2 are named, a battery pack No. 1 BAT1_ control is opened, the mobile power supply works normally, Vin is the input voltage of the battery pack No. 1, in a battery pack No. 1 power supply circuit and a battery pack No. 2 power supply circuit, pins 3 of MOS tubes Q1 and Q3 are both Vin voltage, when the battery pack No. 1 and the battery pack No. 2 are switched, the battery pack No. 1 BAT1_ control is closed, the battery pack No. 2 BAT2_ control is opened, and due to the fact that voltages exist at the pins 3 of the MOS tubes Q1 and Q3 of the two power supply circuits, during switching, the voltages can be supplied uninterruptedly so that the mobile power supply is not powered off.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a portable power source of many lithium batteries package power supply, includes portable power source body (1) and a plurality of lithium cell (2), its characterized in that:
the portable lithium battery charging system comprises a portable power source body (1), a plurality of lithium batteries (2), a wireless charging module (3) arranged in the portable power source body (1), a USB power supply module (4) arranged on the outer side of the portable power source body (1), the wireless charging module (3) and the USB power supply module (4) are electrically connected with the lithium batteries (2), an LCD display screen module (5) is arranged on the upper surface of the portable power source body (1), and an LED illuminating module (6) is arranged on the side wall of the portable power source body (1);
the power supply circuit of the mobile power supply comprises a resistor R13 and a resistor R15, the resistor R13 is connected with the resistor R15 in parallel, a MOS tube Q7 is installed on a line node of the resistor R13 and the resistor R15, the output end of the MOS tube Q7 is connected with the resistor R11 and the resistor R9, the resistor R11 is connected with the resistor R9 in parallel, the MOS tube Q5 is installed on a node of the resistor R11 and the resistor R9, the output end of the MOS tube Q5 is connected with a diode D5 and a diode D7 in parallel, the resistors R1 and R5 are installed behind the diode D5, and the resistor R3 and the resistor R7 are installed behind the diode D7.
2. The mobile power supply powered by multiple lithium battery packs as claimed in claim 1, wherein: the number of the lithium batteries (2) is more than or equal to two.
3. The mobile power supply powered by multiple lithium battery packs as claimed in claim 1, wherein: when the power supply of the lithium batteries (2) is switched, the mobile power supply is not powered off and is not shut down.
4. The mobile power supply powered by multiple lithium battery packs as claimed in claim 1, wherein: for the mobile power supply with power supplied by two or more battery packs, the power supply circuit of the mobile power supply needs to be added every time one battery pack is added.
5. The mobile power supply powered by multiple lithium battery packs as claimed in claim 1, wherein: the resistors R13 and R15 have a voltage divider, so that a voltage difference is generated between pin 1 and pin 2 of the MOS transistor Q7, thereby opening the MOS transistor Q7.
6. The mobile power supply powered by multiple lithium battery packs as claimed in claim 1, wherein: the LCD display screen module (5) and the LED lighting module (6) are electrically connected with the lithium battery (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121488173.4U CN215646241U (en) | 2021-07-01 | 2021-07-01 | Portable power source that many lithium batteries package supplied power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121488173.4U CN215646241U (en) | 2021-07-01 | 2021-07-01 | Portable power source that many lithium batteries package supplied power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215646241U true CN215646241U (en) | 2022-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121488173.4U Active CN215646241U (en) | 2021-07-01 | 2021-07-01 | Portable power source that many lithium batteries package supplied power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215646241U (en) |
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2021
- 2021-07-01 CN CN202121488173.4U patent/CN215646241U/en active Active
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