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Universal charger

A charger, a universal technology, applied in the direction of current collectors, instruments, electric vehicles, etc., can solve the problems of cost saving and convenient use without automatic voltage adjustment, it is difficult to apply multiple battery charging at the same time, and lithium batteries cannot be charged, etc., to achieve Powerful, Stress-Reducing, Cost-Saving Results

Inactive Publication Date: 2009-07-15
陈宗映
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When using a clip-on lithium battery universal charger to charge a block-shaped lithium battery, the positive and negative poles of the battery are often reversed. Once the connection is reversed, not only the lithium battery cannot be charged normally, but it may also cause danger.
[0006] Chinese patent document (patent publication number: CN 101197485A, title of invention: universal charger) discloses a kind of universal charger, can be applicable to the charging of lithium battery and ordinary rechargeable battery, although it has provided the external structure of this universal charger , but due to the different charging voltages of lithium batteries and rechargeable batteries, it is actually difficult to be applicable to the charging of various batteries at the same time without proper voltage regulation. Since there is no technical solution for charging voltage regulation in the manual, According to the understanding of ordinary technicians, the charging device for ordinary rechargeable batteries and the charging device for lithium batteries are two different power supply circuits, or manual adjustment is used to select the voltage, which is obviously not as cost-saving and easy to use as automatic voltage adjustment

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0041] Such as figure 1 and figure 2 As shown, the universal charger includes a movable electrode contact piece 1, a charging splint 2 for a square rechargeable battery, a light-transmitting sheet 3 for a charging indicator light, and a universal charger shell 4 with a cylindrical battery charging slot. The above-mentioned shell includes an upper cover 41 and a lower cover 42, a USB interface 5 of a universal charger, a movable AC input plug 6, a forced start switch 7, a cylindrical rechargeable battery 8, an indicator light 9, and a spring 10. The electrode contact piece 1 is arranged on the charging splint 2 of the block battery. The electrode contact piece 1 includes a plastic shell and a metal contact piece. The metal contact piece is wrapped by a plastic shell above the charging splint. The charging splint 2 A chute 21 is arranged on the top, and the electrode contact piece 1 can rotate around the electrode in the chute 21. A semicircular fixing groove is arranged under...

Embodiment 2

[0052] On the basis of the first embodiment above, without changing the external structure and function, appropriate modifications can be made to the circuit part of the charger.

[0053] Such as Figure 5 As shown, the boost circuit is not controlled by the signal of the battery identification device, and the DC of 5V 1A converted by the AC / DC controller is transmitted to the boost circuit, and the boost circuit raises the voltage of 5V to 10V, and the step-down The control circuit and the charging current control device receive the control signal of the charging voltage identified by the battery identification device, the step-down control circuit reduces the 10V DC to the charging voltage corresponding to the rechargeable battery, and the charging current control device controls the charging current to the same level as the charging voltage. The matching value.

[0054] The connection control relationship of other parts of the circuit does not change.

[0055] The connect...

Embodiment 3

[0057] On the basis of the second embodiment above, the boost circuit can also raise the voltage of 5V to 15V, and the voltage can only be raised to 15V at the highest, because any higher voltage will increase the burden on the step-down control circuit, and even It will damage the step-down control circuit.

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Abstract

The present invention relates to a universal charger that can charge rechargeable batteries of different charge conditions like Ni-Cd, Ni-MH and Li-ion etc. The universal charger comprises a cylindrical charging device for rechargeable batteries, a square charging device for rechargeable batteries, and a movable AC input plug-chip, wherein the cylindrical charging device for rechargeable batteries and the square charging device for rechargeable batteries share one charger shell, characterized in that the cylindrical charging device for rechargeable batteries and the square charging device for rechargeable batteries share one charging circuit, and the charging circuit comprises a AC / DC controller and a charge controller, wherein the charge controller comprises a DC / DC pressure regulation appliance, a battery recognition device and a charging current control device, AC of 100V-240V is converted to DC of 0V-15V through a AC / DC controller and then transmitted to the charge controller; the battery recognition device recognizes charge voltage of charging battery connected on the charger and charging current that matches with the charge voltage; the DC / DC pressure regulation appliance converts input voltage into the charge voltage for output; and the charging current control device converts the input current into the charging current for output.

Description

【Technical field】 [0001] The invention relates to a device for charging a rechargeable battery, in particular to a device capable of charging rechargeable batteries with different charging conditions such as nickel-cadmium, nickel-hydrogen and lithium batteries, that is, a universal charger. 【Background technique】 [0002] At present, there are many kinds of small rechargeable batteries: nickel-cadmium, nickel-zinc, nickel-metal hydride, lithium-ion and polymer lithium batteries. We collectively refer to nickel-cadmium, nickel-zinc, and nickel-metal hydride batteries as ordinary rechargeable batteries, and lithium-ion and polymer lithium batteries are collectively referred to as lithium batteries. The charging voltages of these rechargeable batteries are different. For example, the charging saturation voltage of nickel-metal hydride rechargeable batteries is 1.5V~1.6V, the charging saturation voltage of nickel-cadmium rechargeable battery is 1.7V~1.8V, the charging saturatio...

Claims

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Application Information

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IPC IPC(8): H02J7/02H02M3/00H02M7/02H02J7/00H02J7/04
Inventor 陈宗映
Owner 陈宗映
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