CN209948728U - Battery temperature compensation protection system of automatic battery charger - Google Patents
Battery temperature compensation protection system of automatic battery charger Download PDFInfo
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- CN209948728U CN209948728U CN201920821768.3U CN201920821768U CN209948728U CN 209948728 U CN209948728 U CN 209948728U CN 201920821768 U CN201920821768 U CN 201920821768U CN 209948728 U CN209948728 U CN 209948728U
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- battery charger
- charger
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Abstract
The utility model discloses an automatic battery charger battery temperature compensation protection system, including MCU control panel, battery temperature acquisition probe, automatic battery charger PWM control panel, automatic battery charger main control board, automatic battery charger and battery, its characterized in that, the MCU control panel is connected battery temperature acquisition probe, automatic battery charger PWM control panel respectively and is still connected automatic battery charger through automatic battery charger main control board, and battery piece is still connected to automatic battery charger, the utility model discloses can adjust the voltage that charges according to rechargeable battery's temperature state to reach battery temperature protect function, increase the life of battery and charger.
Description
Technical Field
The utility model relates to a technical field that charges specifically is an automatic battery charger battery temperature compensation protection system.
Background
The device for converting chemical energy into electric energy is called a chemical battery, generally called a battery for short. After discharge, the internal active material can be regenerated by charging-electrical energy is stored as chemical energy; chemical energy is converted into electrical energy again when electrical discharge is required. Therefore, the battery needs to be equipped with a charger to be used.
At present, chargers on the market generally do not have battery temperature protection and temperature compensation output voltage, cause that batteries are not fully charged at low temperature or damaged by high-temperature overcharge, and the circuit can obtain more reasonable charging voltage by combining with the ambient temperature of the batteries, and can effectively prolong the utilization rate and the service life of the batteries.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an automatic battery charger battery temperature compensation protection system, in order to solve the problem of proposing among the background art.
In order to realize the purpose, the utility model provides a following technical scheme:
the utility model provides an automatic battery charger battery temperature compensation protection system, includes MCU control panel, battery temperature acquisition probe, automatic battery charger PWM control panel, automatic battery charger main control board, automatic battery charger and battery, its characterized in that, MCU control panel connects battery temperature acquisition probe, automatic battery charger PWM control panel respectively still through automatic battery charger main control board connection automatic battery charger, and automatic battery charger still connects the battery piece.
As a further aspect of the present invention: the battery temperature acquisition probe is a digital temperature probe.
As a further aspect of the present invention: the battery temperature acquisition probe is a mechanical thermometer with a fixed temperature value.
As a further aspect of the present invention: the model of the digital temperature probe is 18B 20.
As a further aspect of the present invention: the MCU is an ST89 series single chip microcomputer.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses can adjust the voltage that charges according to rechargeable battery's temperature state to reach battery temperature protect function, increase the life of battery and charger.
Drawings
Fig. 1 is a block diagram of the present invention.
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 work belong to the protection scope of the present invention.
Example 1: referring to fig. 1, to achieve the above object, the present invention provides the following technical solutions:
the utility model provides an automatic battery charger battery temperature compensation protection system, includes MCU control panel, battery temperature acquisition probe, automatic battery charger PWM control panel, automatic battery charger main control board, automatic battery charger and battery, its characterized in that, MCU control panel connects battery temperature acquisition probe, automatic battery charger PWM control panel respectively still through automatic battery charger main control board connection automatic battery charger, and automatic battery charger still connects the battery piece. The model of the battery temperature acquisition probe is 18B20, the battery temperature is acquired by the digital temperature probe 18B20, the battery temperature is transmitted to the MCU, the MCU outputs a voltage reference point controlled by PWM according to the currently acquired battery temperature, when the battery temperature is lower than 25 ℃, the MCU can improve the PWM control voltage reference point in a proper linear mode according to the battery temperature compensation proportion, thereby properly improving the output voltage of the automatic battery charger, the problem that the battery capacity is not full due to too low environmental temperature is solved, and the highest output voltage is not more than 14Vdc or 28 Vdc. When the battery starts to heat due to the rise of the ambient temperature, and the MCU detects that the battery temperature is higher than 35 ℃, the MCU can properly and linearly reduce the PWM control voltage reference point according to the battery temperature compensation proportion, so that the output voltage of the automatic battery charger is properly reduced, the battery temperature protection function is achieved, the lowest output voltage is not lower than 13.3Vdc or 26.6Vdc, if the battery temperature continuously rises to 45 ℃, the MCU outputs a charging stop signal, the automatic battery charger stops outputting, and when the battery temperature falls back to within 40 ℃, the automatic battery charger is reactivated to output and charge with a voltage suitable for the current battery temperature.
Embodiment 2, on the basis of embodiment 1, the battery temperature acquisition probe is a mechanical thermometer with a fixed temperature value, and when the MCU detects that the battery temperature is lower than 25 degrees, the MCU outputs a PWM control voltage reference point with a fixed (set) value according to the battery temperature compensation ratio, so as to properly increase the output voltage of the automatic battery charger, thereby solving the problem of insufficient battery capacity due to too low ambient temperature of the battery, and the highest output voltage does not exceed 14Vdc or 28 Vdc. When the battery starts to generate heat due to the rise of the ambient temperature, and the MCU detects that the battery temperature is higher than 35 ℃, the MCU properly reduces the fixed (set) value PWM control voltage reference point according to the battery temperature compensation proportion, so that the output voltage of the automatic battery charger is properly reduced, the battery temperature protection function is achieved, the lowest output voltage is not lower than 13.3Vdc or 26.6Vdc, and if the battery temperature continuously rises to 45 ℃, the MCU outputs a charging stop signal.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides an automatic battery charger battery temperature compensation protection system, includes MCU control panel, battery temperature acquisition probe, automatic battery charger PWM control panel, automatic battery charger main control board, automatic battery charger and battery, its characterized in that, MCU control panel connects battery temperature acquisition probe, automatic battery charger PWM control panel respectively still passes through automatic battery charger main control board and connects automatic battery charger, and automatic battery charger still connects the battery.
2. The automatic battery charger battery temperature compensation protection system of claim 1, wherein the battery temperature acquisition probe is a digital temperature probe.
3. The automatic battery charger battery temperature compensation protection system of claim 1, wherein the battery temperature acquisition probe is a fixed temperature value mechanical thermometer.
4. The automatic battery charger battery temperature compensation protection system of claim 2, wherein the digital temperature probe is model number 18B 20.
5. The automatic battery charger battery temperature compensation protection system of any one of claims 1-4, wherein the MCU is an ST89 series single chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920821768.3U CN209948728U (en) | 2019-05-31 | 2019-05-31 | Battery temperature compensation protection system of automatic battery charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920821768.3U CN209948728U (en) | 2019-05-31 | 2019-05-31 | Battery temperature compensation protection system of automatic battery charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209948728U true CN209948728U (en) | 2020-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920821768.3U Active CN209948728U (en) | 2019-05-31 | 2019-05-31 | Battery temperature compensation protection system of automatic battery charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209948728U (en) |
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2019
- 2019-05-31 CN CN201920821768.3U patent/CN209948728U/en active Active
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