CN204046197U - Portable power source - Google Patents

Abstract

The utility model discloses a mobile power supply for mobile phones which is light in size, small in size, convenient to carry and large in power storage. It includes a charging and discharging control circuit in the casing and a USB interface. The USB interface is attached to the inner surface of the casing to connect with the charging and discharging control circuit by peeling off the casing. The thickness of the casing is 6.5mm-7.0mm. Compared with the prior art, when the circuit board is assembled in the casing, the utility model removes the casing of the USB connector connected to the circuit board, which can not only ensure the normal operation of the mobile power supply circuit, but also save the space of the casing appropriately. Thereby, when designing the utility model, the casing of the mobile power supply can be made thinner, thereby also making the battery used in the utility model an ultra-thin energy storage battery. The outer shape and thickness of the casing of the utility model can be as small as 6.8mm, and the battery storage capacity used is 2000mAH.

Description

mobile power

technical field

The utility model relates to a mobile power supply for mobile phones, in particular to a mobile power supply with an ultra-thin shell. the

Background technique

Nowadays, the mobile power supply for mobile phones is more and more popular with people. It is easy to use, especially when the mobile phone users suddenly run out of battery power and cannot contact friends or colleagues when they go out to do business, business negotiations or travel. The urgent need for rechargeable batteries has made great contributions. the

The mobile power supply in the prior art has many styles, but it all has a deficiency, that is, the volume is slightly large and the weight is not light, so it is inconvenient to carry. the

Contents of the invention

The technical problem to be solved by the utility model is to provide a mobile power supply for mobile phones that is light in size, small in size, convenient to carry, and large in power storage. the

In order to solve the above technical problems, the technical solution adopted in the utility model is:

The mobile power supply of the present utility model includes a charging and discharging control circuit and a USB interface in the casing, the USB interface is attached to the inner surface of the casing and connected with the charging and discharging control circuit by peeling off the casing, and the thickness of the casing is 6.5mm —7.0mm. the

The casing thickness is 6.8mm. the

The USB interface is a microUSB interface. the

The charge and discharge control circuit includes a main control circuit, a lithium ion battery charging circuit, a lithium battery protection circuit, a high-efficiency synchronous boost circuit, a controllable precision voltage regulator and a dedicated MOS tube for lithium batteries. the

The model of the chip used in the main control circuit is SN8P2711A, the model of the chip used in the lithium-ion battery charging circuit is SM6150, the model of the chip used in the lithium battery protection circuit is DW01, and the model of the chip used in the high-efficiency synchronous boost circuit is SY7066. The voltage regulator model is TL431 and the MOS tube model for lithium battery is MS8205A. the

Compared with the prior art, when the circuit board is assembled in the casing, the utility model removes the casing of the USB connector connected to the circuit board, which can not only ensure the normal operation of the mobile power supply circuit, but also save the space of the casing appropriately. Thereby, when designing the utility model, the shell of the mobile power supply can be made thinner, thereby also making the battery used in the utility model an ultra-thin energy storage battery. The outer shape and thickness of the casing of the utility model can be as small as 6.8mm, and the battery storage capacity used is 2000mAH. the

Description of drawings

Fig. 1 is the schematic diagram of the utility model. the

The reference signs are as follows:

Case 1, USB interface 2, charge and discharge control circuit 3, chip U1 for charging circuit, chip U2 for boost circuit, chip U3 for protection circuit, MOS tube U4 for lithium battery, chip U5 for main control circuit and controllable precision Voltage regulator U6. the

Detailed ways

As shown in Figure 1, the mobile power supply of the present invention is an improvement on the existing mobile power supply, which is lighter and thinner than the existing mobile power supply, and its storage capacity can still maintain a large value. The thickness of the casing 1 of the present utility model is 6.5mm-7.0mm, the length is 100mm-110mm, and the width is 50mm-60mm; the preferred scheme is: the thickness of the casing 1 is 6.8mm, the length is 105mm, and the width is 57mm. the

The utility model includes a charging and discharging control circuit 3 and a USB interface 2 in the casing 1 . the

The USB interface 2 is attached to the inner surface of the casing 1 and connected to the charging and discharging control circuit 3 by peeling off the shell, and the USB interface 2 is preferably a microUSB interface 2 . the

The charge and discharge control circuit 3 includes a main control circuit, a lithium ion battery charging circuit, a lithium battery protection circuit, a high-efficiency synchronous boost circuit, a controllable precision voltage regulator U6 and a lithium battery dedicated MOS tube U4, wherein the lithium ion battery charging The circuit is connected with the main control circuit through a high-efficiency synchronous boost circuit. the

The model of the chip U5 used in the main control circuit is SN8P2711A, the model of the chip U1 used in the lithium-ion battery charging circuit is SM6150, the model of the chip U3 used in the lithium battery protection circuit is DW01, and the model of the chip U2 used in the high-efficiency synchronous boost circuit is SY7066, The model of the controllable precision voltage regulator U6 is TL431 and the dedicated MOS tube U4MS8205A for lithium batteries. the

Instructions:

1) Take out the utility model and the accompanying accessories from the packing box;

2) Use an extension cable (USB to 30pin) to connect the utility model to the iPhone, and lightly press the button on the side of the casing 1 to directly charge the phone;

3) When the storage power of the utility model is insufficient, the battery pack can be charged through the USB A revolution mirco usb line, and the electric energy is stored in the battery pack. the

4) Different mobile phones and digital products can be charged through different USB adapter cables. the

Claims (5)

1. A mobile power supply, comprising a charging and discharging control circuit and a USB interface (2) in the casing (1), characterized in that: the USB interface (2) is close to the inner surface of the casing (1) by peeling off the shell Connected with the charging and discharging control circuit (3), the thickness of the casing (1) is 6.5mm-7.0mm. the 2. The mobile power supply according to claim 1, characterized in that: the casing (1) has a thickness of 6.8mm. the 3. The mobile power supply according to claim 1, characterized in that: the USB interface (2) is a microUSB interface. the 4. The mobile power supply according to claim 1, characterized in that: the charge and discharge control circuit (3) includes a main control circuit, a lithium-ion battery charging circuit, a lithium battery protection circuit, a high-efficiency synchronous boost circuit, a controllable precision Stabilized voltage source (U6) and MOS tube (U4) for lithium battery. the 5. The mobile power supply according to claim 4, characterized in that: the model of the chip (U5) used in the main control circuit is SN8P2711A, the model of the chip (U1) used in the lithium ion battery charging circuit is SM6150, and the lithium battery protection circuit The model of the chip (U3) used is DW01, the model of the chip (U2) used in the high-efficiency synchronous boost circuit is SY7066, the model of the controllable precision voltage regulator (U6) is TL431, and the model of the lithium battery dedicated MOS tube (U4) is MS8205A. the