Mobile power supply with low noise

Abstract

The utility model relates to a mobile power supply with low noise, which comprises a shell, an AC socket, an inverter circuit board, an input / output circuit board and a plurality of batteries, the inverter circuit board and the input / output circuit board are arranged inside the shell, the AC socket is arranged outside the shell, the AC socket is connected with the input / output circuit board, and the batteries are connected with the inverter circuit board. The inverter circuit board is arranged above the input and output circuit board, a gap is reserved between the inverter circuit board and the input and output circuit board, the plurality of batteries are tightly attached to the front end of the bottom of the inverter circuit board, and a cooling fin is arranged at the tail end of the top of the inverter circuit board. According to the scheme, a cooling fan is not arranged in the structure, the cooling fins are used for cooling the heating element of the inverter circuit board, heat dissipation can be conducted in a targeted mode, noise generated when the mobile power supply is used can be reduced, and after the cooling fan is omitted, the size of the power supply device becomes smaller, and carrying is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to mobile charging technical field especially relates to a mobile power supply with little noise. BACKGROUND

[0002] Small multifunctional energy storage power supply demand is increasing, and with inverter, can provide AC output for people, satisfy more small household appliance working purpose. But because of the existence of inverter, need to radiate heat, so need to increase radiating fan or radiating hole, increase working noise, traditional inverter output energy storage power supply is big in size, and portable mini energy storage power supply needs to increase radiating fan to let inverter output play normal performance, increase working noise, also increase cost. Or reduce the performance of inverter and increase the radiating hole. These are not conducive to the product to be more portable, also increase the cost, reduce the product use performance experience. SUMMARY

[0003] The utility model provides a mobile power supply with little noise, aims at solving the problem of big volume of existing mobile power supply and big noise of radiating fan.

[0004] The utility model provides a mobile power supply with little noise, including shell, AC socket, inverter circuit board, input output circuit board and a plurality of battery, inverter circuit board and input output circuit board set up inside the shell, the AC socket sets up the outside of shell, the AC socket is connected with input output circuit board, inverter circuit board sets up the top of input output circuit board and leaves the gap between both, a plurality of battery is pasted in the bottom front end of inverter circuit board, the top end of inverter circuit board is equipped with the fin.

[0005] As a further improvement of the utility model, the shell includes an upper shell and a lower shell, and the upper shell is connected above the lower shell by screws.

[0006] As a further improvement of the utility model, the input output circuit board is connected inside the lower shell by screws, and the input output circuit board is communicatively connected with the inverter circuit board by a pin.

[0007] As a further improvement of the utility model, the part of the battery in contact with the inverter circuit board is not arranged with any circuit component, the top end of the inverter circuit board is arranged with a heating element, and the fin is pasted on the top of the heating element.

[0008] As a further improvement of the utility model, the bottom end of the inverter circuit board is arranged with an inverter function element, and a gap is left between the inverter function element and the battery.

[0009] As a further improvement of the utility model, the lower shell is provided with a placing hole on the outer side, and the AC socket is connected in the placing hole.

[0010] As a further improvement of the utility model, the lower shell is provided with a USB interface on one side, and the USB interface is connected with the input and output circuit board.

[0011] As a further improvement of the utility model, the lower shell is provided with an AC ground hole in the bottom, and the ground wire of the AC socket is passed through the AC ground hole.

[0012] As a further improvement of the utility model, the lower shell is provided with a rubber plug in the bottom.

[0013] The utility model discloses the beneficial effect is: in the structure of the scheme, does not set up the cooling fan, adopts the fin to the heat generating element of inverter circuit board and carries out heat dissipation, not only can the targeted heat dissipation, can reduce the noise when using the portable power source, cancels the volume of power supply device after the cooling fan, and carrying is also more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the explosion drawing of the utility model.

[0015] Reference signs: 1 - upper shell, 2 - lower shell, 3 - inverter circuit board, 4 - input and output circuit board, 5 - battery, 6 - fin, 7 - AC socket, 8 - AC ground hole, 9 - placing hole, 10 - USB interface, 11 - rubber plug. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the utility model more clear, the following is further detailed in conjunction with the drawings and examples.The description used in the following "front", "back", "left", "right", "up" and "down" refer to the direction in the drawing, and the words "bottom surface" and "top surface", "inner" and "outer" respectively refer to the direction towards or away from the geometric center of a particular component.

[0017] As Figure 1 As shown in the utility model provides a kind of portable power source with little noise, including shell, AC socket 7, inverter circuit board 3, input and output circuit board 4 and several batteries 5, the inverter circuit board 3 and input and output circuit board 4 are set in the inside of the shell, the AC socket 7 is set in the outside of the shell, the AC socket 7 is connected with the input and output circuit board 4, the inverter circuit board 3 is set in the top of the input and output circuit board 4 and there is gap between the two, several batteries 5 are tightly attached to the bottom front end of the inverter circuit board 3, and the top end of the inverter circuit board 3 is provided with fin 6.

[0018] As an embodiment of the utility model, the shell includes upper shell 1 and lower shell 2, the upper shell 1 is connected in the upper of the lower shell 2 by screw.

[0019] As another embodiment of the utility model, the input and output circuit board 4 is connected in the inside of the lower shell 2 by screw, the input and output circuit board 4 is connected with the inverter circuit board 3 by pin.

[0020] As another embodiment of the utility model, the part of the battery 5 and the inverter circuit board 3 contact does not arrange any circuit component, the top end of the inverter circuit board 3 is arranged heat generating element, the fin 6 is pasted in the top of heat generating element.

[0021] As another embodiment of the utility model, the bottom end of the inverter circuit board 3 is arranged inverter function component, and the inverter function component and the battery 5 are left gap.

[0022] As another embodiment of the utility model, the outside of the lower shell 2 is equipped with the placement hole 9, the AC socket 7 is connected in the placement hole 9.

[0023] As another embodiment of the utility model, one side of the lower shell 2 is equipped with USB interface 10, the USB interface 10 is connected with the input and output circuit board 4.The input and output circuit board 4 is connected with USB connecting line through the USB interface 10, and then is connected with charging equipment.

[0024] As another embodiment of the utility model, the bottom of the lower shell 2 is equipped with AC ground hole 8, and the ground wire of the AC socket 7 is passed in the AC ground hole 8.The AC ground hole 8 can guide the ground wire of the AC socket 7, so that connecting line is more regular, and saves the space in shell.

[0025] As another embodiment of the utility model, the bottom of the lower shell 2 is equipped with rubber plug 11.The mobile power supply can be fixed on the plane through the rubber plug 11, and stability is provided.

[0026] The utility model provides a mobile power supply with little noise, and the structure design realizes the inverter output power of at least 85W, simultaneously realizes USB-Type C-PD 60W output, and the battery capacity is not less than 24000mAh, and there is no heat dissipation hole and fan. Figure 1As shown, after the several batteries 5 are packaged into a battery pack, the batteries 5 are directly welded on the inverter circuit board 3, and the face of the battery 5 and the inverter circuit board 3 overlapping part is not arranged with any circuit components, the circuit components arranged on the inverter circuit board 3 are BMS battery protection circuit, the top end of the inverter circuit board 3 is a main heater component such as inverter circuit switch MOS tube, and the heat dissipation fin 6 is pasted on the top to disperse the heat, and the heat dissipation fin 6 can be replaced with heat-conducting silica gel. The high components (such as transformer) providing the inverter function and the high-voltage electrolytic capacitor are arranged below the inverter circuit board 3, and are staggered with the position of the battery 5, and are kept a certain distance from the last battery of the battery pack, and a wide distance is kept in the middle to avoid rapid heat conduction, and high and low voltage isolation is prepared.

[0027] The input and output circuit board 4 is installed on the lower shell 2 and is fixed by screws, and realizes communication connection with the upper inverter circuit board 3 through a pin. When the inverter circuit board 3 is installed on the lower shell 2, part of the components of the inverter circuit board 3 overlaps the input and output circuit board 4 below, but keeps a safe distance, and the AC socket is installed in the placing hole 9 on the side of the lower shell 2, which just uses the space overlapping between the inverter circuit board 3 and the input and output circuit board 4. In this way, high-performance inverter performance output and PD output and zero noise effect can be realized in a very small size, and dustproof can also be realized.

[0028] The above is a further detailed description of the utility model in combination with specific preferred embodiments, and the specific implementation of the utility model cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the utility model belongs, some simple deductions or replacements can be made without departing from the concept of the utility model, and all of them should be regarded as belonging to the protection scope of the utility model.

Claims

1. A mobile power supply with low noise, characterized in that The application relates to an inverter, which comprises a shell, an AC socket, an inverter circuit board, an input-output circuit board and a plurality of batteries, wherein the inverter circuit board and the input-output circuit board are arranged in the interior of the shell, the AC socket is arranged outside the shell, the AC socket is connected with the input-output circuit board, the inverter circuit board is arranged above the input-output circuit board and a gap is left between the inverter circuit board and the input-output circuit board, the batteries are attached to the bottom front end of the inverter circuit board, and the top end of the inverter circuit board is provided with a cooling fin.

2. The mobile power supply of claim 1, wherein, The shell comprises an upper shell and a lower shell, and the upper shell is connected above the lower shell through screws.

3. The mobile power supply of claim 2, wherein, The input-output circuit board is connected in the interior of the lower shell through screws, and the input-output circuit board is connected with the inverter circuit board through a pin.

4. The mobile power supply of claim 1, wherein, The part of the batteries in contact with the inverter circuit board is not arranged with any circuit component, the top end of the inverter circuit board is arranged with a heating element, and the cooling fin is attached to the top of the heating element.

5. The mobile power supply of claim 1, wherein, The bottom end of the inverter circuit board is arranged with an inverting functional element, and a gap is left between the inverting functional element and the batteries.

6. The mobile power supply of claim 2, wherein, The outer side of the lower shell is provided with a placing hole, and the AC socket is connected in the placing hole.

7. The mobile power supply of claim 2, wherein, One side of the lower shell is provided with a USB interface, and the USB interface is connected with the input-output circuit board.

8. The mobile power supply of claim 2, wherein, The bottom of the lower shell is provided with an AC ground hole, and the ground wire of the AC socket is passed through the AC ground hole.

9. The mobile power supply of claim 2, wherein, The bottom of the lower shell is provided with a rubber plug.

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