CN217769512U

CN217769512U - NP battery charger

Info

Publication number: CN217769512U
Application number: CN202123307307.0U
Authority: CN
Inventors: 张光
Original assignee: Wanyou Innovation Technology Hebei Co ltd
Current assignee: Wanyou Innovation Technology Hebei Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-11-08
Anticipated expiration: 2031-12-24

Abstract

The utility model discloses an NP battery charger, which relates to the technical field of battery charging, in particular to an NP battery charger, a voltage reduction module, a charging unit and a first interface; the charging unit includes: the charging control module and the electric quantity indicating module; the output end of the voltage reduction module is electrically connected with the input end of the charging control module and the first interface, and the output end of the charging control module is electrically connected with the electric quantity indication module; the charging control module is used for charging the electric energy from the output end of the voltage reduction module or the electric energy of the first interface into an external NP battery; the charging control module is also used for controlling charging current according to the electric quantity of the external NP battery; the electric quantity indicating module is used for displaying the electric quantity of the NP battery connected with the charging control module.

Description

NP battery charger

Technical Field

The utility model relates to a battery charging technology field specifically is a NP battery charger.

Background

The current NP battery is the most common battery in the field of camera equipment, and many devices have NP interfaces, which makes the user of the device prepare many NP batteries to be used with the device. And NP series batteries also differ in different capacities.

The chargers on the market at present are basically one-charge-one-charge and all charge with small current. The same kind of products of individual manufacturers are charged in a double charging mode or a triple charging mode at most and are charged in a single charging mode at most, and the requirements of customers cannot be met.

At present, NP chargers in the market, especially two-charge or three-charge chargers, mostly need to be matched with an AC/DC transformer for use, which is equivalent to the inconvenience of carrying two devices at the same time.

The utility model discloses an application number is 201120012593.5, and the name is utility model patent of multichannel charger, discloses a multichannel charger, including charger, multichannel T type flow equalizing circuit, two and more than two group battery or electric core are connected to the positive and negative output two poles of the earth of charger through battery input circuit respectively, battery input circuit in concatenate mutually independent T type flow equalizing circuit. The utility model discloses realize charging when a plurality of electric cores or group battery balancedly, charging current is unanimous basically between each return circuit, and the consumption that generates heat is little, is applicable to the electric core or the group battery charge of same kind type, same grade voltage and capacity.

The application number is CN201410352328.X, the name is a multi-voltage compatible charger circuit, and relates to a charger circuit which comprises an input control circuit, a high-frequency switch circuit, an output circuit and a linkage circuit, wherein the input control circuit consists of a power supply input interface, a full-bridge integrated block, a regulating resistor, a trigger capacitor, a trigger diode and a one-way thyristor; the high-frequency switch circuit consists of an oscillation resistor, an oscillation capacitor, a NOT gate a, a NOT gate b, a driving resistor, a field effect tube and an inductor; the output circuit consists of an isolation resistor b, a charging output interface, a switch and a sampling resistor; the interlocking circuit consists of a current limiting resistor a, an optical coupler a, a bias resistor a and a triode a; in the output circuit, the second end of the inductor (L) is connected to the positive end of the charging output interface through the isolation resistor b, the negative end of the charging output interface is connected to the ground wire through the switch, and the ground wire is connected to the negative electrode of the full-bridge integrated block through the sampling resistor.

The utility model has the following contents:

the utility model provides a NP battery charger for solve the problem that NP battery charger is unsuitable indoor, the external use among the prior art.

The utility model adopts the following technical scheme:

an NP battery charger comprising: the charging device comprises a voltage reduction module, a charging unit and a first interface; the charging unit includes: the charging control module and the electric quantity indicating module;

the output end of the voltage reduction module is electrically connected with the input end of the charging control module and the first interface, and the output end of the charging control module is electrically connected with the electric quantity indication module;

the charging control module is used for charging the electric energy from the output end of the voltage reduction module or the electric energy of the first interface into an external NP battery; the charging control module is also used for controlling charging current according to the electric quantity of the external NP battery;

and the electric quantity indicating module is used for displaying the electric quantity of the NP battery connected with the charging control module.

Further, the charging unit further includes: the current change-over switch is electrically connected with the control end of the charging control module;

the charging control module is also used for controlling the charging current according to the current change-over switch.

Further, the charging control module includes: the charging circuit comprises a controller, a switch element, a charging current feedback circuit and an electric quantity feedback circuit;

the charging current feedback circuit is used for collecting a charging current signal, the electric quantity feedback circuit is used for collecting a voltage signal of an NP battery, and the controller is used for controlling the on-off time proportion of the switch element according to the current signal and the voltage signal so as to realize the control of charging voltage and charging current;

the input end of the switch element is electrically connected with the output end of the voltage reduction module and the first interface, the output end of the switch element is used for outputting charging electric energy for an NP battery, the control end of the switch element is electrically connected with the signal output end of the controller, and the charging current feedback circuit and the electric quantity feedback circuit are respectively and electrically connected with the signal input end of the controller.

Furthermore, the charging current feedback circuit is at least two paths, and the current selector switch is used for connecting or disconnecting one path of feedback signals.

Further, still include: a temperature sensor and a heat radiation fan; the temperature sensor is used for collecting internal temperature signals of the NP battery charger, and when the temperature signals exceed a threshold value, the cooling fan is started.

Further, the number of the charging units is at least two.

Further, the first interface is a cigarette lighter interface.

The utility model discloses an actively the effect as follows:

the invention can charge various storage batteries with different voltages by using different power supplies.

Drawings

Fig. 1 is a functional block diagram of an NP battery charger according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a charging unit according to an embodiment of the present invention;

FIG. 3 is the internal structure of the present invention;

fig. 4 shows a typical application of the present invention.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; 'above" may include both orientations "at 8230; \8230;' above 8230; 'at 8230;' below 8230;" above ". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

As shown in fig. 1-4, an NP battery charger includes: the charging device comprises a voltage reduction module, a charging unit and a first interface; the charging unit includes: the charging control module and the electric quantity indicating module; the problem of being able to two kinds of power input for NP battery charging is solved. And under the commercial power mode, besides can be for battery charging, can also export the direct current through first interface.

The output end of the voltage reduction module is electrically connected with the input end of the charging control module and the first interface, and the output end of the charging control module is electrically connected with the electric quantity indication module; the first interface has two electric energy input modes, and commercial power or other direct current power supplies, such as the power supply of cigar lighter for car, first interface is for inserting direct current power supply, and when inserting commercial power supply, first interface can also export direct current power supply.

The charging control module is used for charging the electric energy from the output end of the voltage reduction module or the electric energy of the first interface into an external NP battery; the charging control module is also used for controlling charging current according to the electric quantity of the external NP battery; the charging voltage of an NP battery connected with a charger is detected, and the electric quantity of the battery is judged according to the voltage. According to different electric quantities, different charging currents are supplied, under the condition that charging safety is guaranteed and the battery is damaged less, charging is carried out with larger current, and quick charging is achieved.

Further, the charging unit further includes: the current change-over switch is electrically connected with the control end of the charging control module; the charging current can be controlled by adapting to batteries with different capacities. The current switching switch is connected with the charging current feedback circuit in series, and the charging current feedback coefficient is realized by opening or closing the switch, so that the purpose of switching the charging current is achieved.

Example 1:

further, the charging control module includes: the charging circuit comprises a controller, a switch element, a charging current feedback circuit and an electric quantity feedback circuit; the controller is a charging control chip and is FD3926 in model. The switching element is realized by a power tube, such as a high-power triode 13003 or a high-power field effect tube. One embodiment of the charging current feedback circuit is a sampling resistor connected in series with the NP cell that converts the current signal into a voltage signal that is fed back to the controller.

Further, still include: a temperature sensor and a heat radiation fan; the temperature sensor is used for collecting temperature signals inside the NP battery charger, and when the temperature signals exceed a threshold value, the cooling fan is started.

Example 2

Further, the number of the charging units is at least two.

Example 3

Further, the first interface is a cigarette lighter interface.

At present, the technical scheme of the application has been subjected to a pilot plant test, namely a small-scale experiment before large-scale mass production of products; after the pilot test is finished, the investigation for the use of the user is carried out in a small range, and the investigation result shows that the satisfaction degree of the user is higher; the preparation of products for official production for industrialization (including intellectual property risk early warning investigation) has been set forth.

The above-described embodiments are merely preferred examples of the present invention and are not exhaustive of the possible implementations of the present invention. Any obvious modifications to the above would be obvious to those of ordinary skill in the art, but would not bring the invention so modified beyond the spirit and scope of the present invention.

Claims

1. An NP battery charger comprising: the charging device comprises a voltage reduction module, a charging unit and a first interface; the charging unit includes: the charging control module and the electric quantity indicating module;

the electric quantity indicating module is used for displaying the electric quantity of the NP battery connected with the charging control module.

2. The NP battery charger as recited in claim 1, wherein the charging unit further comprises: the current change-over switch is electrically connected with the control end of the charging control module;

3. The NP battery charger as recited in claim 2, wherein the charge control module comprises: the charging circuit comprises a controller, a switch element, a charging current feedback circuit and an electric quantity feedback circuit;

the input end of the switch element is electrically connected with the output end of the voltage reduction module and the first interface, the control end of the switch element is electrically connected with the signal output end of the controller, and the charging current feedback circuit and the electric quantity feedback circuit are respectively electrically connected with the signal input end of the controller.

4. The NP battery charger as defined in claim 3, wherein the charging current feedback circuit comprises at least two paths, and the current switch is used to connect or disconnect the feedback signal of one path.

5. The NP battery charger as recited in claim 4, further comprising: temperature sensor and radiator fan.

6. The NP battery charger according to claim 5 wherein there are at least two of said charging units.

7. The NP battery charger of claim 6 wherein the first interface is a cigarette lighter interface.