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 differ

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0040] Example 1

[0041] like figure 1 and figure 2 As shown, the universal charger includes a movable electrode contact piece 1, a charging splint 2 for a square-shaped rechargeable battery, a light-transmitting sheet 3 for a charging indicator light, and a universal charger housing 4 with a cylindrical battery charging slot, all of which The described casing includes an upper casing 41 and a lower casing 42, a USB interface 5 of the universal charger, a movable AC input plug 6, a forced start switch 7, a cylindrical rechargeable battery 8, an indicator light 9, a spring 10, etc. 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 at the position above the charging splint. The charging splint 2 There is a chute 21 on the top, the electrode contact piece 1 can rotate around the electrode in the chute 21...

Example Embodiment

[0051] Embodiment 2

[0052] On the basis of the above-mentioned first embodiment, on the basis that the external structure and function are not changed, appropriate modifications can be made to the circuit part of the charger.

[0053] like Figure 5 As shown in the figure, the booster circuit is not controlled by the signal of the battery identification device, and the 5V 1A DC converted by the AC / DC controller is transmitted to the booster circuit. 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 charging battery, and the charging current control device controls the charging current to be in phase with the charging voltage. matching value.

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

[0055] The connection relationship of ...

Example Embodiment

[0056] Embodiment 3

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