CN217238325U

CN217238325U - Test tool for simulating quick charge of lithium battery

Info

Publication number: CN217238325U
Application number: CN202123279401.XU
Authority: CN
Inventors: 朱志君; 黎平; 赵余雷
Original assignee: Junsheng Technology Yangzhou Co ltd
Current assignee: Junsheng Technology Yangzhou Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-08-19
Anticipated expiration: 2031-12-24

Abstract

The utility model discloses a test tool for simulating fast charge of a lithium battery, which comprises a battery simulator and a temperature analog circuit, wherein the temperature analog circuit comprises a resistor R8 and a resistor R9, the resistor R8 is incorporated between a charging pin and a feedback pin of the product, the feedback pin of the product is incorporated between the ground and a resistor R9, and the temperature analog circuit is used for keeping constant current fast charge for the product; the battery simulator is electrically connected with the product through a lead and used for testing whether the product circuit is normal or not. The utility model discloses can high efficiency test lithium cell remote control product, the validity of test data has been ensured to the test standard of quantization.

Description

Test tool for simulating quick charge of lithium battery

Technical Field

The utility model relates to a test equipment, in particular to test tool that simulation lithium cell filled soon.

Background

With the development of the times and the progress of the society, the radio frequency technology is widely applied to the aspect of intelligent remote controllers as a short-distance radio technology, but because the power consumption of radio frequency products is large, alkaline batteries need to be frequently replaced, waste and environmental pollution are easily caused, and lithium batteries have the advantages of long service life, environmental protection and the like and are also applied to the intelligent remote controllers. In order to test and verify the charging function of the lithium battery, the invention provides a test tool for quick charging of the lithium battery.

The test of the lithium battery charging circuit of the existing remote control product is a charging test based on a mounted lithium battery, a tester needs to identify the current charging state by checking the color of an LED, and the electric quantity value of the lithium battery has specific requirements during the test, so that the test scheme has the defects that: a) the electric quantity value of the lithium battery of the existing remote control product before the product is loaded into the lithium battery is uncertain, the charging time of the lithium batteries with different electric quantities in the charging test process is different, and meanwhile, the current of the lithium batteries with different electric quantities is different, so that the accuracy of battery temperature detection is influenced, and the production efficiency and the product quality are influenced. b) The lithium battery needs to be pre-charged under the condition that the electric quantity value of the lithium battery is low, the charging time is too long, and the charging state cannot be checked under the condition that the electric quantity of the lithium battery is saturated. Is not beneficial to the mass production test of the product. c) In the design of current test station, the unable control electric quantity value of lithium battery power supply module of carry, if when finding data skew in the test procedure, need change the lithium battery module and pass through artifical debugging, increased manual work and cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the prior art defect, providing a simulation lithium cell fills testing tool soon, can high efficiency test lithium cell remote control product, the validity of test data has been ensured to the test standard of quantization.

The purpose of the utility model is realized like this: a test tool for simulating quick charge of a lithium battery is characterized by comprising a battery simulator and a temperature simulation circuit, wherein the temperature simulation circuit comprises a resistor R8 and a resistor R9, the resistor R8 is incorporated between a charging pin and a feedback pin of a product, the resistor R9 is incorporated between the feedback pin of the product and the ground, and the temperature simulation circuit is used for keeping constant-current quick charge for the product; the battery simulator is electrically connected with the product through a lead and used for testing whether the circuit of the product is normal or not.

The utility model adopts the above technical scheme, compare with prior art, beneficial effect is: through incorporating into resistance R8 at charging pin and feedback pin, incorporate into resistance R9 between feedback pin to GND, let the chip of charging always acquiesce the battery and remain the voltage below 3.6V throughout and guarantee to remain the purpose that the constant current was filled soon throughout, solved the volume production and charged slowly, ensured test data's validity, guaranteed the product quality, promoted production efficiency.

In order to accelerate and simplify the control of the output channel, form a set of voltage source and measuring instrument with extremely fast speed, greatly reduce the interactive demand of the computer and GPIB, the said battery simulator adopts KEITHLEY 2306.

In order to ensure that constant current and quick charge are always kept, the resistor R8 is 50 omega, and the resistor R9 is 100 omega.

In order to set the battery simulator to simulate the functions of the lithium battery and the charger respectively and then simulate different battery electric quantities by setting different output voltages, the battery simulator is also connected with the test platform.

Drawings

Figure 1 block diagram of the electrical apparatus of the present invention.

Fig. 2 is a connection diagram of the temperature simulation circuit and the product circuit of the present invention.

Detailed Description

As shown in fig. 1, the test tool for simulating the quick charge of the lithium battery includes a battery simulator and a temperature simulation circuit, the temperature simulation circuit includes a resistor R8 and a resistor R9, the resistor R8 is 50 Ω, the resistor R9 is 100 Ω, the resistor R8 is incorporated between a charging pin and a feedback pin of a product, the resistor R9 is incorporated between the feedback pin of the product and the ground, and the temperature simulation circuit is used for maintaining a constant current quick charge for the product; the battery simulator is electrically connected with the product through a lead and used for testing whether the product circuit is normal or not; the battery simulator adopts KEITHLEY 2306; the battery simulator is also connected with the test platform.

The utility model discloses the during operation, through adopting KEITHLEY 2306 as the battery simulator, 2306 still provides two outside trigger outputs to can the independent control instrument the output channel. These trigger inputs eliminate the time lag problem of GPIB data communications, speeding up and simplifying control of the output channel. The KEITHLEY 2306 combines the external trigger input with the built-in test sequence to form a set of voltage source and measuring instrument with extremely high speed, and the interaction requirement of a computer and GPIB is greatly reduced. The testing platform sends a control instruction to a battery simulator KEITHLEY 2306 through a GPIB communication interface, the simulator is respectively set to simulate the functions of a lithium battery and a charger, different battery electric quantities are simulated by setting different output voltages, and whether the design requirements are met or not is checked and judged by reading a current feedback value; the charging pin and the feedback pin of the product are connected into the resistance of 50K omega, the feedback pin is connected into the resistance of 100K omega to GND, the charging chip of the product always keeps the voltage below 3.6V to ensure that the constant current is always kept and the charging is always carried out quickly, the problem that the mass production charging is slow is solved, the validity of test data is ensured, the product quality is ensured, and the production efficiency is improved.

The present invention is not limited to the above embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and modifications to some technical features without creative labor, and these substitutions and modifications are all within the protection scope of the present invention.

Claims

1. A test tool for simulating quick charge of a lithium battery is characterized by comprising a battery simulator and a temperature simulation circuit, wherein the temperature simulation circuit comprises a resistor R8 and a resistor R9, the resistor R8 is incorporated between a charging pin and a feedback pin of a product, the resistor R9 is incorporated between the feedback pin of the product and the ground, and the temperature simulation circuit is used for keeping constant-current quick charge for the product; the battery simulator is electrically connected with a product through a lead and is used for testing whether a product circuit is normal or not; the battery simulator adopts KEITHLEY 2306.

2. The test tool for simulating fast charge of a lithium battery as claimed in claim 1, wherein the resistance R8 is 50 Ω, and the resistance R9 is 100 Ω.

3. The test tool for simulating the quick charge of the lithium battery as claimed in claim 1, wherein the battery simulator is further connected with a test platform.