CN203251113U - Multifunctional battery charger - Google Patents

Abstract

The utility model provides a multifunctional battery charger, and relates to a multifunctional battery charger having charging and discharging functions simultaneously. A charger main control circuit board is arranged in a casing; the casing is provided with a charging input port; the charging input port is electrically connected with the charger main control circuit board; a surface cover is provided with a slidable battery clamping holder assembly; one end of the slidable battery clamping holder assembly is provided with a positive pole contact sheet, and the other end of the slidable battery clamping holder assembly is provided with a negative pole contact sheet; the positive pole contact sheet is electrically connected with a current positive pole output port of the charger main control circuit board; the negative pole contact sheet is electrically connected with a current negative pole output port of the charger main control circuit board; and the slidable battery clamping holder assembly arranged on the surface cover comprises a 18650 lithium battery clamping holder and a 26650 lithium battery clamping holder. The surface cover of the multifunctional battery charger of the utility model is provided with the 18650 lithium battery clamping holder and the 26650 lithium battery clamping holder, and therefore, the multifunctional battery charger can charge a 18650 lithium battery and a 26650 lithium battery simultaneously.

Description

Multifunctional battery charger

technical field

The utility model relates to the technical field of chargers, in particular to a multifunctional charger with both charging and discharging functions.

Background technique

At present, the chargers on the market are only suitable for charging rechargeable batteries, and can only charge batteries of the same model, and their functions are relatively single; at the same time, the models are relatively fixed and cannot be compatible with various lithium batteries. In addition, when charging the battery, it cannot be effectively controlled and adjusted according to the power of the battery. For example, the battery is fully charged and cannot stop charging by itself; The battery has not been removed in time on the charger for a long time, and the battery voltage is too low due to various reasons, and the charger cannot start up by itself again to supplement the battery. Secondly, the current charger generally has the problem that the charging current cannot be displayed, because it is necessary to charge a variety of different types of batteries, and during the charging process, different types of batteries need to be charged with different voltages, and the charger cannot display the charging voltage, which is easy to cause Can not effectively charge, and even bring danger. Again, current chargers lack the function of charging electronic products with USB ports.

Utility model content

The purpose of the utility model is to provide a multifunctional battery charger to overcome many disadvantages of the prior art, such as poor compatibility of the charger, uncontrollable charging current and no direct output of electric energy for use as a mobile power supply.

The utility model is realized through the following technical solutions: a multifunctional battery charger, including a bottom cover and a face cover, the bottom cover and the face cover form a shell, and a charger main control circuit board is arranged inside the shell , the housing is provided with a charging input port, the charging input port is electrically connected to the main control circuit board of the charger, the cover is provided with a slidable battery holder, and one end of the slidable battery holder is set There is a positive electrode contact piece, and the other end of the slidable battery holder is provided with a negative electrode contact piece, the positive electrode contact piece is electrically connected with the current positive output port of the main control circuit board of the charger, and the negative electrode contact piece is connected with the The current negative output port of the main control circuit board of the charger is electrically connected; the slidable battery holder provided on the cover includes a 18650 lithium battery holder and a 26650 lithium battery holder.

The above technical scheme is further elaborated below:

Further, the cover is provided with two 18650 lithium battery holders and two 26650 lithium battery holders, the two 18650 lithium battery holders are set in the middle of the cover, and the two 26650 lithium battery holders are respectively set On both sides of the two 18650 lithium battery holders.

Further, it also includes a current output control circuit, the housing is provided with a USB output port, the current output control circuit includes a positive connection port and a negative connection port, the positive connection port and the positive contact piece Electrically connected, the negative connection port is electrically connected to the negative contact piece, and the USB output port is electrically connected to the current output port of the current output control circuit.

Further, the surface cover is also provided with a control panel, the control panel is provided with a key control circuit and control keys, and the key control circuit is signal-connected to the current output control circuit.

Further, a rechargeable battery voltage too low activation circuit is also included, and the rechargeable battery voltage is too low activation circuit is signal-connected with the charger main control circuit board.

Further, it also includes a battery voltage detection circuit and a charging startup circuit, the battery voltage detection circuit is provided with a positive voltage collection port and a negative voltage collection port, the positive voltage collection port is electrically connected to the positive contact piece, the The negative electrode voltage collection port is electrically connected to the negative electrode contact piece, the signal output port of the battery voltage detection circuit is connected to the signal input port of the charging start circuit, and the signal output port of the charge start circuit is connected to the The signal connection of the main control circuit board of the charger.

Further, it also includes an overcharge protection circuit and an overdischarge protection circuit, the overcharge protection circuit is signal-connected to the charger main control circuit board, and the over-discharge protection circuit is signally connected to the current output control circuit .

The beneficial effects of the present utility model are: firstly, the multifunctional battery charger of this structure, its face cover is provided with 18650 lithium battery holder and 26650 lithium battery holder, has the function of simultaneously charging 18650 lithium battery and 26650 lithium battery .

Its two, the multifunctional battery charger of this structure is except having normal charging function to the battery, also is provided with the current output control circuit, this multifunctional charger shell is provided with USB output port, and above-mentioned USB output port and current output The current output port of the control circuit is electrically connected; thereby, the multi-function charger can be used as a mobile power supply to charge loads with USB interfaces, such as mobile phones, digital cameras, tablet computers, etc., which greatly improves the charging efficiency. device application.

Third, the face cover of the multifunctional battery charger is provided with a control panel, and the control panel is provided with a button control circuit and control buttons; thereby, in actual application and operation, the charging voltage can be adjusted through the control buttons to realize the charging voltage of the charger. Various types of batteries can be charged, and the compatibility of the charger is mentioned.

Fourth, the charger also includes a rechargeable battery voltage activation circuit that is too low, and the rechargeable battery voltage activation circuit is connected to the signal of the main control circuit board of the charger; when the battery voltage is zero or too low, the charging cannot be completed When the voltage of the rechargeable battery is too low, the activation circuit starts to repair the rechargeable battery, so that the rechargeable battery can smoothly carry out the charging procedure.

Fifth, the charger is also provided with a battery voltage detection circuit and a charging start circuit; thereby, when the battery is not taken off in time on the charger for a long time, the battery voltage is too low due to various reasons, and the battery voltage detection circuit detects When the rechargeable battery is in the state of voltage disclosure, the low voltage information of the battery is transmitted to the charging startup circuit, and the charging startup circuit sends a charging command to the charger main control circuit board, and the charger main control circuit board starts to continue charging the rechargeable battery, so that the battery The battery remains saturated for ease of use.

Sixth, the charger also includes an overcharge protection circuit and an overdischarge protection circuit, the overcharge protection circuit is connected to the charger main control circuit board signal, the overdischarge protection circuit is connected to the current output control circuit Circuit signal connection; thereby, the rechargeable battery can be prevented from being unusable due to overcharging or overdischarging, and the service life of the rechargeable battery is effectively improved.

Description of drawings

Fig. 1 is the circuit block diagram of the utility model;

Fig. 2 is the front view of the utility model;

Fig. 3 is the back view of the utility model;

Fig. 4 is the right view of the utility model;

Fig. 5 is a bottom view of the utility model.

Reference signs: 1. Bottom cover; 2. Front cover; 3. Charger main control circuit board; 4. Charging input port; 5. Slidable battery holder; 6. Positive contact piece; 7. Negative contact piece; 8 , current output control circuit; 9, USB output port; 10, control panel; 11, control buttons; 12, rechargeable battery voltage is too low activation circuit; 13, battery voltage detection circuit; 14, charging start circuit; 15, overcharge protection circuit; 16, over-discharge protection circuit; 17, rechargeable battery; 51, 18650 lithium battery holder; 52, 26650 lithium battery holder.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described:

Referring to Fig. 1 to Fig. 5, the multifunctional battery charger of this structure includes a bottom cover 1 and a face cover 2, the bottom cover 1 and the face cover 2 form a housing, and the main control unit of the charger is arranged in the housing The circuit board 3, the housing is provided with a charging input port 4, the charging input port 4 is electrically connected to the main control circuit board 3 of the charger, and the cover 2 is provided with a slidable battery holder 5, so One end of the slidable battery holder 5 is provided with a positive electrode contact piece 6, and the other end of the slidable battery holder 5 is provided with a negative electrode contact piece 7, and the current between the positive electrode contact piece 6 and the charger main control circuit board 3 The positive output port is electrically connected, and the negative contact piece 7 is electrically connected to the current negative output port of the charger main control circuit board 3; the cover 2 is provided with two 18650 lithium battery holders 51 and two 26650 lithium battery holders 52, two 18650 lithium battery holders 51 are arranged in the middle of the cover 2, and two 26650 lithium battery holders 52 are respectively arranged on both sides of the two 18650 lithium battery holders 51. The multi-function battery charger of this structure, its face cover is provided with 18650 lithium battery holder 51 and 26650 lithium battery holder 52, has the function of simultaneously charging 18650 lithium battery and 26650 lithium battery.

Referring to Figure 1, the charger of this structure also includes a current output control circuit 8, the housing is provided with a USB output port 9, the current output control circuit 8 includes a positive connection port and a negative connection port, so The positive connection port is electrically connected to the positive contact piece 6, the negative connection port is electrically connected to the negative contact piece 7, and the USB output port 9 is electrically connected to the current output port of the current output control circuit 8. sexual connection. The multifunctional battery charger with this structure is provided with a current output control circuit 8 in addition to the normal function of charging the battery. The housing of the multifunctional charger is provided with a USB output port 9. The current output port of the control circuit 8 is electrically connected; thereby, the multifunctional charger can be used as a mobile power supply to charge a load provided with a USB interface, such as a mobile phone, a digital camera, a tablet computer, etc., which greatly improves the battery life. charger application.

Referring to FIG. 5 , the cover of the charger is also provided with a control panel 10 , the control panel 10 is provided with a button control circuit and a control button 11 , and the button control circuit is connected to the current output control circuit 8 in signal.

Still referring to FIG. 1 , the charger with this structure further includes a rechargeable battery voltage too low activation circuit 12 , and the rechargeable battery voltage too low activation circuit 12 is signally connected to the charger main control circuit board 3 . The charger also includes a rechargeable battery voltage too low activation circuit 12, and the rechargeable battery voltage is too low activation circuit 12 is signal-connected with the charger main control circuit board 3; when the battery voltage is zero or too low, charging cannot be completed When the voltage of the rechargeable battery is too low, the activation circuit 12 starts to repair the rechargeable battery, so that the rechargeable battery can carry out the charging procedure smoothly.

Still referring to Figure 1, the charger of this structure also includes a battery voltage detection circuit 13 and a charging start circuit 14, the battery voltage detection circuit 13 is provided with a positive voltage acquisition port and a negative voltage acquisition port, the positive voltage acquisition The port is electrically connected to the positive contact piece 6, the negative voltage collection port is electrically connected to the negative contact piece 7, and the signal output port of the battery voltage detection circuit 13 is connected to the charging start circuit 14. The signal input port is connected to the signal, and the signal output port of the charging startup circuit 14 is connected to the main control circuit board 3 of the charger. The charger is also provided with a battery voltage detection circuit 13 and a charging start circuit 14; thereby, when the battery is not taken off in time on the charger for a long time, the battery voltage is too low due to various reasons, and the battery voltage detection circuit 13 detects When the rechargeable battery is in the state of voltage disclosure, the low voltage information of the battery is transmitted to the charging starting circuit 14, and the charging starting circuit 14 sends a charging command to the charger main control circuit board 3, and the charger main control circuit board 3 starts to continue charging the rechargeable battery. Charge to keep the battery fully charged for ease of use.

Still referring to Fig. 1, the charger of this structure also includes an overcharge protection circuit 15 and an overdischarge protection circuit 16, and the overcharge protection circuit 14 is connected with the signal of the charger main control circuit board 3, and the The over-discharge protection circuit 16 is signal-connected with the current output control circuit 3 . The charger also includes an overcharge protection circuit 15 and an overdischarge protection circuit 16, the overcharge protection circuit 14 is connected with the charger main control circuit board 3 signal, the overdischarge protection circuit 16 is connected to the current The output control circuit 8 is connected to the signal; thereby, the rechargeable battery can be prevented from being unusable due to overcharging or overdischarging, and the service life of the rechargeable battery is effectively improved.

According to the disclosure and teaching of the above specification, those skilled in the art to which the present utility model belongs can also make appropriate changes and modifications to the above embodiment. Therefore, the utility model is not limited to the specific implementation manners disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present utility model.

Claims (7)

1. Multifunctional battery charger, comprise bottom and cover, described bottom and cover form housing, be provided with the charger main control board in the described housing, described housing is provided with the charging input end mouth, described charging input end mouth and described charger main control board are electrically connected, described cover is provided with slidably battery deck, described slidably battery deck one end is provided with anodal contact, the described slidably battery deck other end is provided with the negative pole contact, the electric current cathode output end mouth of described anodal contact and described charger main control board is electrically connected, and the electric current cathode output end mouth of described negative pole contact and described charger main control board is electrically connected;

It is characterized in that: the slidably battery deck of described cover setting comprises 18650 lithium battery decks and 26650 lithium battery decks.

2. Multifunctional battery charger according to claim 1, it is characterized in that: described cover is provided with two 18650 lithium battery decks and two 26650 lithium battery decks, two 18650 lithium battery decks are arranged at the middle part of described cover, and two 26650 lithium battery decks are arranged at respectively the both sides of two 18650 lithium battery decks.

3. Multifunctional battery charger according to claim 1, it is characterized in that: it also comprises an electric current output control circuit, described housing is provided with the USB output port, described electric current output control circuit comprises a positive terminal mouth and a negative terminals mouth, described positive terminal mouth and described anodal contact are electrically connected, described negative terminals mouth and described negative pole contact are electrically connected, and the current output terminal mouth of described USB output port and described electric current output control circuit is electrically connected.

4. Multifunctional battery charger according to claim 3, it is characterized in that: described cover also is provided with a control panel, described control panel is provided with key control circuit and control button, and described key control circuit is connected with described electric current output control circuit signal.

5. Multifunctional battery charger according to claim 1, it is characterized in that: also comprise a rechargable battery brownout active circuit, described rechargable battery brownout active circuit is connected with described charger governor circuit partitioned signal.

6. Multifunctional battery charger according to claim 1, it is characterized in that: also comprise a battery voltage detection circuit and charge initiation circuit, described battery voltage detection circuit is provided with cathode voltage and gathers port and cathode voltage collection port, described cathode voltage gathers port and described anodal contact is electrically connected, described cathode voltage gathers port and described negative pole contact is electrically connected, the signal output port of described battery voltage detection circuit is connected with the signal input port signal of described charge initiation circuit, and the signal output port of described charge initiation circuit is connected with described charger governor circuit partitioned signal.

7. Multifunctional battery charger according to claim 3; it is characterized in that: also comprise an overcharge protection circuit and an over-discharge protection circuit; described overcharge protection circuit is connected with described charger governor circuit partitioned signal, and described over-discharge protection circuit is connected with described electric current output control circuit signal.

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