A miniaturized charger

Abstract

The present invention discloses a miniaturized charger, which includes a housing. The housing is provided with a DC charging module, an AC / DC adapter, a hand generator, a voltage limiting controller and a self-adapter in a multi-column stacked manner. An AC power input interface, a DC power input interface, a solar power input interface and a charging output interface that are linearly arranged and penetrate outside the housing are installed inside the housing. Compared with the prior art, in the present invention, the DC charging module, the AC / DC adapter, the hand generator, the voltage limiting controller and the self-adapter are arranged in the housing in a multi-column stacked manner, and the AC power input interface, the DC power input interface, the solar power input interface and the charging output interface are linearly penetrated inside and outside the housing, so that the miniaturized charger has a compact structure, a small volume and is convenient to carry.

Description

Technical Field

[0001] The present invention relates to the technical field of chargers, and particularly to a miniaturized charger. Background Art

[0002] At present, there are many types of chargers. The most widely used is the AC charger, which uses alternating current as the working power supply, and the alternating current is provided by the commercial power, AC generator, etc. Another type of charger is the DC charger, which uses direct current as the working power supply, and the direct current is provided by the car battery, DC generator, etc. In places where there is no alternating current or direct current, the most practical charger is the hand-cranked charger, which uses human power as the working energy. AC chargers, DC chargers, and hand-cranked chargers generally exist in an independent form, and occasionally there is a charger that combines AC and DC.

[0003] For the convenience of use, there is also a large charger composed of a combination of an AC charger, a DC charger, and a hand-cranked charger, which is not convenient to carry. Summary of the Invention

[0004] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a miniaturized charger to solve the problem in the prior art that the existing charger composed of a combination of an AC charger, a DC charger, and a hand-cranked charger is large in size and not convenient to carry.

[0005] To achieve the above object, the present invention adopts the following technical solution: A miniaturized charger includes a housing. The housing is provided with a DC charging module, an AC / DC adapter, a hand-cranked machine, a voltage limiting controller, and a self-adapter in a multi-column stacked manner. An AC power input interface, a DC power input interface, a solar power input interface, and a charging output interface that are linearly arranged and penetrate through the housing to the outside of the housing are installed inside the housing.

[0006] Compared with the prior art, the present invention has the following beneficial effects:

[0007] By arranging the DC charging module, the AC / DC adapter, the hand-cranked machine, the voltage limiting controller, and the self-adapter in a multi-column stacked manner inside the housing, and linearly arranging the AC power input interface, the DC power input interface, the solar power input interface, and the charging output interface inside and outside the housing, the miniaturized charger of the present invention has a compact structure, a small volume, and is convenient to carry. Description of the Drawings

[0008] Figure 1 It is a partial structure diagram of the present invention;

[0009] Figure 2 is Figure 1 an enlarged view of part A in

[0010] Figure 3 is Figure 2 Partial sectional view along line B - B;

[0011] Figure 4 is Figure 2 Partial sectional view along line C - C;

[0012] Figure 5 is the circuit principle block diagram in the present invention. Detailed implementation mode

[0013] The present invention will be further described in detail through the following detailed implementation modes:

[0014] The reference numerals in the accompanying drawings of the specification include: housing 1, DC charging module 2, AC / DC adapter 3, hand generator 4, AC power input interface 5, DC power input interface 6, solar power input interface 7, charging output interface 8, installation groove 9, fixing ear 10, setting groove 11, pressing block 12, elastic telescopic rod 13, locking post 14, hanging ring 15, elastic telescopic ejector rod 16, connecting block 17, installation cavity 18, communication hole 19, winding rod 20, traction coil 21, driving wire 22, voltage limiting controller 23, self - adapter 24, USB conversion module 25.

[0015] Embodiment

[0016] Refer to Figures 1 to 5 As shown: A miniaturized charger includes a housing 1, and the housing 1 is provided with a DC charging module 2, an AC / DC adapter 3, a hand generator 4, a voltage limiting controller 23 and a self - adapter 24 in a multi - column stacked manner. An AC power input interface 5, a DC power input interface 6, a solar power input interface 7 and a charging output interface 8 which are linearly arranged and penetrate through the housing 1 to the outside of the housing 1 are installed in the housing 1.

[0017] This miniaturized charger also includes a selection circuit module disposed within the housing 1. The selection circuit module includes three diodes connected in parallel. The anodes of the three diodes are electrically connected to the AC / DC adapter 3, the DC power input interface 6, and the self-adapter 24 respectively. The cathodes of the three diodes are all electrically connected to the DC charging module 2, and the module is electrically connected to the charging output interface 8. The AC / DC adapter 3 is electrically connected to the voltage limiting controller 23 and the AC power input interface 5. The voltage limiting controller 23 is electrically connected to the hand generator 4. The solar power input interface 7 is electrically connected to the self-adapter 24. A automatic selection switch is formed by the three diodes. Using the principle of the one-way conduction of the diode, after a corresponding power supply is connected to one of the AC power input interface 5, the DC power input interface 6, and the solar power input interface 7, a voltage drop is formed between the anode and the cathode of the diode connected to this interface, making the cathode voltage of the other two diodes higher than their anode voltage. As a result, the circuits where the other two diodes not connected to the power supply are open circuits and not conducting. After the AC power is connected to the AC power input interface 5, the voltage is converted to a stable 28V through the AC / DC adapter 3. At the same time, this miniaturized charger enters the standby state and the system automatically transfers this power supply to the input end of the DC charging module 2, and then the battery pack connected to the charging output interface 8 can be charged. When the DC power is connected to the DC power input interface, this miniaturized charger enters the standby state and the system automatically transfers this power supply to the input end of the DC charging module 2, and then the battery pack connected to the charging output interface 8 can be charged. When the solar power is connected to the solar power input interface 7, after voltage regulation through the self-adapter 24, this miniaturized charger enters the standby state and the system automatically transfers this power supply to the input end of the DC charging module 2, and then the battery pack connected to the charging output interface 8 can be charged. When using the hand generator 4 to generate electricity, during use, directly rotate the hand crank of the hand generator 4, and the hand generator 4 outputs an AC voltage. The voltage is limited and protected through the voltage limiting controller 23 to avoid excessive voltage. When the minimum operating speed of the hand generator 4 is greater than 80 revolutions per minute, the voltage is then converted to a stable 28V through the AC / DC adapter 3. At the same time, this miniaturized charger enters the standby state and the system automatically transfers this power supply to the input end of the DC charging module 2, and then the battery pack connected to the charging output interface 8 can be charged.

[0018] To adapt to the USB interface connection, it also includes a USB conversion module 25 disposed within the housing 1. The cathodes of the three diodes are also all electrically connected to the USB conversion module 25. The USB conversion module 25 is electrically connected to a USB output interface passing through the inside and outside of the housing 1. The design of the USB conversion module 25 and the USB output interface facilitates the use of the USB interface to access the battery pack and charge the battery pack, enriching the usage scenarios of this miniaturized charger.

[0019] In order to conveniently select the output voltage of the USB conversion module 25 or the DC charging module 2 according to the type of battery pack, the DC charging module 2 is electrically connected to a microcomputer control unit arranged in the housing 1, and the microcomputer control unit is electrically connected to a human-machine interaction interface; the charging voltage of the battery pack is selected through the buttons on the human-machine interaction interface, and then the output voltages of the DC charging module 2 and the USB conversion module 25 are controlled through the microcomputer control unit.

[0020] Each electrical component, the USB conversion module 25, the control unit, etc. in this miniaturized charger are all existing structures. This miniaturized charger only forms a charger that is convenient to carry and can charge the battery pack by connecting to an AC power supply, a DC power supply, a solar power supply, and generating electricity by hand-cranking in a certain layout manner; and a handle is provided at the top of the housing 1 for convenient carrying.

[0021] In order to improve the stability of the hand-cranked machine 4 during operation and reduce the vibration feeling inside the housing 1; an installation groove 9 is opened on the inner wall of the housing 1. After the bottom of the hand-cranked machine 4 is embedded into the installation groove 9, it is fixed by a multi-point positioning mechanism. The multi-point positioning mechanism includes two symmetrically arranged positioning components. Each positioning component includes a locking structure for pressing and fixing the side wall of the hand-cranked machine 4 and a top support structure for supporting the bottom of the hand-cranked machine 4. A transmission structure is arranged between the locking structure and the top support structure to control the support state of the top support structure for the bottom of the hand-cranked machine 4 with the adjustment power of the locking structure; the locking structure includes a fixed ear 10 connected to the side wall of the hand-cranked machine 4 and an embedding groove opened on the side wall of the notch of the installation groove 9. The fixed ear 10 is embedded in the embedding groove. Oppositely arranged two setting grooves 11 are opened on the side wall of the embedding groove. Pressing blocks 12 penetrating into the embedding groove are slidably arranged in both setting grooves 11. Both pressing blocks 12 are connected to the bottom of the corresponding setting groove 11 through return springs. A detachable locking part is connected between the two pressing blocks 12; after the fixed ear 10 is placed in the embedding groove, the two pressing blocks 12 are pressed and fixed by the detachable locking part; the detachable locking part includes a locking column 14 connected to the top of one of the pressing blocks 12 and an elastic telescopic rod 13 rotatably connected to the top of the other pressing block 12. A hanging ring 15 is connected to the free end of the elastic telescopic rod 13; the two pressing blocks 12 are fixed by sleeving the hanging ring 15 on the locking column 14; the top support structure includes an elastic telescopic top rod 16 arranged at the bottom of the installation groove 9 and a connecting block 17 connected to the movable end of the elastic telescopic top rod 16. An installation cavity 18 communicated with the two setting grooves 11 is opened in the side wall of the installation groove 9. The installation cavity 18 is communicated with the bottom inside the installation cavity 18 through a communication hole 19 opened in the side wall of the installation groove 9; the transmission structure includes a winding rod 20 connected to the bottom of each pressing block 12. Both winding rods 20 move freely in the installation cavity 18. A traction coil 21 is slidably sleeved between the two winding rods 20. A driving wire 22 is connected to the traction coil 21. The driving wire 22 passes through the communication hole 19 and is then connected to the connecting block 17; when installing the hand-cranked machine 4, the hanging ring 15 is disconnected from the locking column 14, so that the two pressing blocks 12 in the same positioning component move away from each other. The bottom of the hand-cranked machine 4 is embedded into the installation groove 9. The fixed ear 10 connected to the hand-cranked machine 4 is embedded into the corresponding embedding groove. Then, the two pressing blocks 12 move towards each other. The two pressing blocks 12 press and fix the fixed ear 10. The hanging ring 15 is sleeved on the locking column 14 to lock the two pressing blocks 12; when the two pressing blocks 12 move towards each other, the two winding rods 20 also move towards each other, so that the driving wire 22 moves towards the direction close to the connecting block 17. The elastic telescopic top rod 16 extends under the elastic action, so that the elastic telescopic top rod 16 abuts against the bottom of the hand-cranked machine 4 to further fix the hand-cranked machine 4 and improve the stability of the hand-cranked machine 4;When the two pressing blocks 12 move away from each other, the two wire winding rods 20 also move away from each other, causing the driving wire 22 to move in a direction away from the connecting block 17. The elastic telescopic ejector rod 16 contracts under the pulling force of the driving wire 22, and the elastic telescopic ejector rod 16 disengages from the bottom of the hand crank 4.;

[0022] In order to enable the pressing block 12 to better press and fix the fixing ear 10, the bottom surfaces of the two pressing blocks 12 in the same positioning component are both arc-shaped on the opposite sides facing each other, which is convenient for the two pressing blocks 12 to quickly press and fix the fixing ear 10 during the process of moving towards each other.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A miniaturized charger, characterized in that, it includes a housing, and the housing is provided with a DC charging module, an AC / DC adapter, a hand generator, a voltage limiting controller and a self-adapter in a multi-column stacked manner. An AC power input interface, a DC power input interface, a solar power input interface and a charging output interface that are linearly arranged and penetrate to the outside of the housing are installed in the housing; installation grooves are opened on the inner wall of the housing. After the bottom of the hand generator is embedded into the installation groove, it is fixed by a multi-point positioning mechanism. The multi-point positioning mechanism includes two symmetrically arranged positioning components. Each positioning component includes a locking structure for pressing and fixing the side wall of the hand generator and a top support structure for supporting the bottom of the hand generator. A transmission structure is arranged between the locking structure and the top support structure to control the support state of the top support structure for the bottom of the hand generator with the adjustment power of the locking structure; the locking structure includes a fixed ear connected to the side wall of the hand generator and an embedding groove opened on the side wall of the notch of the installation groove. The fixed ear is embedded in the embedding groove. Oppositely arranged two setting grooves are opened on the side wall of the embedding groove. Two pressing blocks that penetrate into the embedding groove are slidably arranged in the two setting grooves. Both pressing blocks are connected to the bottom of the matching setting groove through a return spring, and a detachable locking part is connected between the two pressing blocks; after the fixed ear is placed in the embedding groove, the two pressing blocks are pressed and fixed through the detachable locking part; the detachable locking part includes a locking column connected to the top of one of the pressing blocks and an elastic telescopic rod rotatably connected to the top of the other pressing block. A hanging ring is connected to the free end of the elastic telescopic rod; the two pressing blocks are fixed by sleeving the hanging ring on the locking column; the top support structure includes an elastic telescopic top rod arranged at the bottom of the installation groove and a connecting block connected to the movable end of the elastic telescopic top rod. An installation cavity communicated with the two setting grooves is opened in the side wall of the installation groove, and the installation cavity is communicated with the bottom of the installation cavity through a communication hole opened in the side wall of the installation groove; the transmission structure includes a winding rod connected to the bottom of each pressing block. Both winding rods move freely in the installation cavity. A traction coil is slidably sleeved between the two winding rods. A driving wire is connected to the traction coil, and the driving wire passes through the communication hole and is connected to the connecting block.

2. A miniaturized charger according to claim 1, characterized in that: it further includes a selection circuit module arranged in the housing. The selection circuit module includes three diodes arranged in parallel. The anodes of the three diodes are respectively and electrically connected to the AC / DC adapter, the DC power input interface and the self-adapter. The cathodes of the three diodes are all electrically connected to the DC charging module, and the module is electrically connected to the charging output interface; the AC / DC adapter is electrically connected to the voltage limiting controller and the AC power input interface, the voltage limiting controller is electrically connected to the hand generator, and the solar power input interface is electrically connected to the self-adapter.

3. A miniaturized charger according to claim 2, characterized in that: it further includes a USB conversion module arranged in the housing. The cathodes of the three diodes are also all electrically connected to the USB conversion module, and the USB conversion module is electrically connected to a USB output interface that penetrates inside and outside the housing.

4. A miniaturized charger according to claim 2, characterized in that: the DC charging module is electrically connected to a microcomputer control unit disposed in the housing, and the microcomputer control unit is electrically connected to a human-machine interface; the output voltage of the DC charging module is controlled through the microcomputer control unit by operating on the human-machine interface.

Images