CN213990212U - Intelligent lithium battery charger with positive and negative electrode reverse connection protection function of battery - Google Patents
Intelligent lithium battery charger with positive and negative electrode reverse connection protection function of battery Download PDFInfo
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- CN213990212U CN213990212U CN202022860833.9U CN202022860833U CN213990212U CN 213990212 U CN213990212 U CN 213990212U CN 202022860833 U CN202022860833 U CN 202022860833U CN 213990212 U CN213990212 U CN 213990212U
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Abstract
The utility model relates to a lithium battery charger technical field discloses an intelligent lithium battery charger with positive negative pole of battery joins conversely protect function, which comprises a housin, the power cord, the battery connecting wire, switch button, charge status indicator and liquid crystal display, power cord and battery connecting wire set up respectively on the lateral wall of casing, switch button, charge status indicator and liquid crystal display equally divide and do not set up on the front end wall of casing, the upper end wall of casing and the both sides of lower end wall are equipped with a plurality of first radiating grooves respectively, be equipped with intelligent charging chip in the casing, power module and charging circuit module, and the power cord, the battery connecting wire, switch button, charge status indicator and liquid crystal display equally divide and do not be connected with intelligent charging chip electricity. The technical scheme of the utility model can make the charger possess the lithium cell transposition protect function, avoid the battery polarity to connect the chip of burning out of the turn-over, and charger convenient to carry, the practicality is strong.
Description
Technical Field
The utility model relates to a lithium battery charger technical field, in particular to intelligent lithium battery charger with positive negative pole reverse connection protect function of battery.
Background
The lithium battery charger is a charger specially used for charging the lithium ion battery, and the lithium ion battery has higher requirement on the charger and needs a protection circuit, so the lithium battery charger generally needs higher control precision and can carry out constant-current and constant-voltage charging on the lithium ion battery.
However, most of the existing lithium battery chargers do not have reverse connection protection of the positive electrode and the negative electrode of the battery, so that the polarity of the battery is easy to reverse, components of the charger are burnt, and the service life of the charger is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an intelligent lithium battery charger with positive negative pole reversal of battery protect function aims at solving current lithium battery charger and leads to the battery polarity to burn the components and parts of charger on the contrary easily, influences the technical problem of the life of charger.
In order to achieve the above purpose, the intelligent lithium battery charger with the function of protecting the reverse connection of the positive electrode and the negative electrode of the battery provided by the utility model comprises a shell, a power cord, a battery connecting wire, a power switch button, a charging state indicator light and a liquid crystal display screen, the power line and the battery connecting line are respectively arranged on the side wall of the shell, the power switch button, the charging state indicator light and the liquid crystal display screen are respectively arranged on the front end wall of the shell, a plurality of first heat dissipation grooves are respectively arranged on two sides of the upper end wall and the lower end wall of the shell, an intelligent charging chip, a power module and a charging circuit module are arranged in the shell and are electrically connected with the intelligent charging chip, and the power line, the battery connecting wire, the power switch button, the charging state indicator lamp and the liquid crystal display screen are respectively electrically connected with the intelligent charging chip.
Further, the intelligent charging chip adopts an EPS3802 chip.
Further, still include the handle, the handle sets up in the upper end of casing.
Furthermore, the periphery wall of handle is equipped with a plurality of anti-skidding sand grips.
Further, the front end wall of the shell is provided with a plurality of second heat dissipation through grooves.
Further, the lower end wall of the shell is arranged in a groove structure.
Furthermore, two sides of the lower end wall of the shell are respectively convexly provided with an anti-slip silica gel strip.
Further, the shell is made of ABS plastic materials.
Adopt the technical scheme of the utility model, following beneficial effect has: the technical proposal of the utility model is that the power switch button, the charging state indicator light and the liquid crystal display screen are respectively arranged on the side wall of the shell through the power line and the battery connecting line, the power switch button, the charging state indicator light and the liquid crystal display screen are respectively arranged on the front end wall of the shell, the two sides of the upper end wall and the lower end wall of the shell are respectively provided with a plurality of first radiating grooves, the shell is internally provided with an intelligent charging chip, a power module and a charging circuit module which are electrically connected with the intelligent charging chip, and the power line, the battery connecting line, the power switch button, the charging state indicator light and the liquid crystal display screen are respectively electrically connected with the intelligent charging chip, the charger has the function of lithium battery reverse connection protection through the built-in intelligent charging chip, when the positive pole and the negative pole of the lithium battery are reversely connected with the VBAT output pin of the intelligent charging chip, the leakage current of the reversely connected lithium battery is less than 0.5mA, the reversely connected battery is correctly connected, the normal charging state is recovered, so that the battery polarity is prevented from being connected with the reverse burning chip, the intelligent charging chip adopts constant current/constant voltage linear control, the charging curve of the lithium battery which can be fully attached can be charged at different stages with accurate constant current or constant voltage, the over-discharged lithium battery can be compensated and charged and the electrical performance of the over-discharged lithium battery can be repaired, the charging saturation of the lithium battery is improved, the service life of the lithium battery is prolonged, the charger is convenient to carry, and the practicability is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic diagram of an overall structure of an intelligent lithium battery charger with a protection function for reverse connection of positive and negative electrodes of a battery according to an embodiment of the present invention;
fig. 2 is a schematic view of another view angle of the intelligent lithium battery charger with the protection function for reverse connection of the positive electrode and the negative electrode of the battery according to an embodiment of the present invention;
fig. 3 is an overall structural schematic diagram of another view angle of the intelligent lithium battery charger with the protection function of reverse connection of the positive electrode and the negative electrode of the battery according to an embodiment of the present invention.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides an intelligent lithium battery charger with positive negative pole of battery joins conversely protect function.
As shown in fig. 1 to 3, in an embodiment of the present invention, the intelligent lithium battery charger with positive and negative electrode reverse connection protection function includes a casing 101, a power line (not shown), a battery connection line (not shown), a power switch button 102, a charging status indicator 103 and a liquid crystal display 104, wherein the power line and the battery connection line are respectively disposed on a side wall of the casing 101, the power switch button 102, the charging status indicator 103 and the liquid crystal display 104 are respectively disposed on a front end wall of the casing 101, two sides of an upper end wall and a lower end wall of the casing 101 are respectively provided with a plurality of first heat dissipation grooves 1011, an intelligent charging chip (not shown) and a power module (not shown) and a charging circuit module (not shown) are disposed in the casing 101, and the power line, the battery connection line, the power module, and the charging circuit module are electrically connected to the intelligent charging chip, The battery connecting line, the power switch button 102, the charging state indicator light 103 and the liquid crystal display screen 104 are respectively electrically connected with the intelligent charging chip.
Specifically, the intelligent charging chip adopts an EPS3802 chip, the EPS4058 chip has a lithium battery reverse connection protection function, when the positive electrode and the negative electrode of a lithium battery are reversely connected to a VBAT output pin, the reverse connection leakage current of the lithium battery is less than 0.5 mA. Correctly insert the battery of the reversal of connecing, resume normal charged state, avoid battery polarity to connect the reversal chip of burning out, EPS4058 chip adopts the linear control of constant current/constant voltage, and built-in charging current self-adaptation function, when adapter output current is less than charging current, EPS4058 chip can reduce charging current to inject the input and about 4.4V, can not draw down to EPS4058 chip can not work with the input voltage.
Specifically, the EPS3802 chip adopts an internal PMOSFET architecture and is provided with an anti-reverse charging circuit, so that an external detection resistor and an isolation diode are not needed. The thermal feedback allows for automatic adjustment of the charging current to limit the chip temperature under high power operation or high ambient temperature conditions. The charging current may be set externally by a resistor. When the battery reaches VFLOAT (typically 4.2V), the charging current drops to the set point 1/10, which automatically terminates charging.
Specifically, the portable electronic device further comprises a handle 105, wherein the handle 105 is arranged at the upper end part of the shell 101.
Specifically, the outer peripheral wall of the handle 105 is provided with a plurality of anti-slip ribs 1051.
Specifically, the front end wall of the housing 101 is provided with a plurality of second heat dissipation through grooves 1012.
Specifically, the lower end wall of the housing 101 is disposed in a groove structure.
Specifically, two sides of the lower end wall of the housing 101 are respectively provided with an anti-slip silica gel strip 106 in a protruding manner.
Specifically, the housing 101 is formed of ABS plastic.
Specifically, the utility model is respectively arranged on the side wall of the shell through the power line and the battery connecting line, the power switch button, the charging state indicator light and the liquid crystal display screen are respectively arranged on the front end wall of the shell, the two sides of the upper end wall and the lower end wall of the shell are respectively provided with a plurality of first radiating grooves, the shell is internally provided with the intelligent charging chip, the power module and the charging circuit module which are electrically connected with the intelligent charging chip, and the power line, the battery connecting line, the power switch button, the charging state indicator light and the liquid crystal display screen are respectively electrically connected with the intelligent charging chip, the charger has the function of lithium battery reverse connection protection through the built-in intelligent charging chip, when the positive pole and the negative pole of the lithium battery are reversely connected with the VBAT output pin of the intelligent charging chip, the leakage current of the reversely connected lithium battery is less than 0.5mA, the reversely connected battery is correctly connected, and the normal charging state is recovered, thereby avoid battery polarity to connect the anti-chip of burning out, intelligent charging chip adopts the linear control of constant current/constant voltage, and the charging curve that can fully laminate the lithium cell carries out accurate constant current or constant voltage charging in different stages to can compensate the lithium cell of discharging and charge and the electric property repair, thereby improve the saturation of charging of lithium cell, extension lithium cell life, and charger convenient to carry, the practicality is strong.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (8)
1. The utility model provides an intelligent lithium battery charger with positive negative pole of battery joins conversely protect function, a serial communication port, including casing, power cord, battery connecting wire, switch button, state of charge pilot lamp and liquid crystal display, power cord and battery connecting wire set up respectively in on the lateral wall of casing, switch button, state of charge pilot lamp and liquid crystal display equally divide do not set up in on the front end wall of casing, the upper end wall of casing and the both sides of lower end wall are equipped with a plurality of first radiating grooves respectively, be equipped with intelligent charging chip in the casing and with power module and charging circuit module that intelligent charging chip electricity is connected, just power cord, battery connecting wire, switch button, state of charge pilot lamp and liquid crystal display equally divide do not with intelligent charging chip electricity is connected.
2. The intelligent lithium battery charger with the battery anode-cathode reverse connection protection function according to claim 1, wherein the intelligent charging chip is an EPS3802 chip.
3. The intelligent lithium battery charger with the function of protecting the reverse connection of the positive electrode and the negative electrode of the battery as claimed in claim 1, further comprising a handle, wherein the handle is arranged at the upper end of the shell.
4. An intelligent lithium battery charger with reverse-polarity battery protection as claimed in claim 3, wherein the handle has a plurality of anti-slip ribs on its peripheral wall.
5. An intelligent lithium battery charger with reverse battery polarity protection as claimed in claim 1, wherein the front end wall of the housing has a plurality of second heat dissipating through slots.
6. An intelligent lithium battery charger with reverse battery polarity protection as claimed in claim 1, wherein the lower end wall of the housing is configured as a groove.
7. An intelligent lithium battery charger with reverse connection protection of positive and negative electrodes of battery as claimed in claim 6, wherein two sides of the lower end wall of the casing are respectively provided with a protruding anti-slip silica gel strip.
8. An intelligent lithium battery charger with reverse battery polarity protection as claimed in claim 1, wherein the housing is formed of ABS plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022860833.9U CN213990212U (en) | 2020-12-02 | 2020-12-02 | Intelligent lithium battery charger with positive and negative electrode reverse connection protection function of battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022860833.9U CN213990212U (en) | 2020-12-02 | 2020-12-02 | Intelligent lithium battery charger with positive and negative electrode reverse connection protection function of battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213990212U true CN213990212U (en) | 2021-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022860833.9U Active CN213990212U (en) | 2020-12-02 | 2020-12-02 | Intelligent lithium battery charger with positive and negative electrode reverse connection protection function of battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213990212U (en) |
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2020
- 2020-12-02 CN CN202022860833.9U patent/CN213990212U/en active Active
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