Battery tester

Abstract

The utility model discloses a battery tester, which relates to the technical field of battery testing and comprises a battery testing circuit board, a shell I and a shell II, the shell I and the shell II are connected through a flexible belt with a built-in electric connecting wire, and the battery testing circuit board is provided with a battery low-voltage positive electrode sampling conductive end and a battery low-voltage negative electrode sampling conductive end. The battery low-voltage positive electrode sampling conductive end and the battery low-voltage negative electrode sampling conductive end are distributed on opposite sides of the shell II and the shell I; the battery test circuit board is further provided with a test voltage display screen, a battery high-voltage positive electrode sampling conductive end and a battery high-voltage negative electrode sampling conductive end, and the battery high-voltage positive electrode sampling conductive end and the battery high-voltage negative electrode sampling conductive end are both arranged on the side, away from the shell II, of the shell I. According to the utility model, the battery voltage test range is wider, and the test voltage display screen is additionally arranged, so that the voltage value can be accurately displayed.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery test technical field, specifically, relate to a battery tester. BACKGROUND

[0002] The existing battery tester includes battery test circuit board and shell I and shell II connected through the flexible band of built-in electric connection line, the battery test circuit board sets up battery low voltage sampling circuit and voltage detection chip integrated with AD converter, two low voltage measurement conductive ends of battery low voltage sampling circuit are distributed on the opposite sides of shell I and shell II, and are all equipped with magnet. The existing battery tester has defects: on the one hand, only low voltage, small size dry battery can be measured, and the use range is limited, on the other hand, voltage state is displayed through indicating lamp, and specific voltage value cannot be known. SUMMARY

[0003] The utility model provides a battery tester, which can solve the above problems.

[0004] In order to solve the above problems, the technical scheme adopted by the utility model is as follows:

[0005] The utility model provides a battery tester, which includes battery test circuit board and shell I and shell II connected through the flexible band of built-in electric connection line, the battery test circuit board sets up battery low voltage positive sampling conductive end and battery low voltage negative sampling conductive end, the battery low voltage positive sampling conductive end and battery low voltage negative sampling conductive end are distributed on the opposite sides of shell II and shell I, the battery test circuit board still sets up test voltage display screen, battery high voltage positive sampling conductive end and battery high voltage negative sampling conductive end, the battery high voltage positive sampling conductive end and battery high voltage negative sampling conductive end are all set up on the side of shell I away from shell II.

[0006] As a further description of the above technical scheme, the battery test circuit board sets up battery low voltage sampling circuit, battery high voltage sampling circuit and voltage detection chip integrated with AD converter, the positive and negative sampling ends of battery low voltage sampling circuit are electrically connected with battery low voltage positive sampling conductive end and battery low voltage negative sampling conductive end respectively, the positive and negative sampling ends of battery high voltage sampling circuit are electrically connected with battery high voltage positive sampling conductive end and battery high voltage negative sampling conductive end respectively.

[0007] As a further description of the above technical scheme, the battery low voltage positive sampling conductive end and battery low voltage negative sampling conductive end are both convex structures of built-in magnet.

[0008] As a further description of the above technical solutions, the shell I and the shell II are both detachable structures with bottom covers.

[0009] As a further description of the above technical solutions, the battery test circuit board comprises a battery test circuit board I arranged in the shell I and a battery test circuit board II arranged in the shell II, the battery test circuit board I and the battery test circuit board II are connected through the built-in electric connection line of the flexible band; the battery high-voltage sampling circuit, the battery low-voltage sampling circuit, the battery low-voltage negative sampling conductive end, the battery high-voltage positive sampling conductive end and the battery high-voltage negative sampling conductive end are arranged in the battery test circuit board I; the voltage detection chip, the test voltage display screen and the battery low-voltage positive sampling conductive end are arranged in the battery test circuit board II.

[0010] As a further description of the above technical solutions, the test voltage display screen is exposed on the side of the shell II away from the shell I.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1) not only has the battery low-voltage positive sampling conductive end and the battery low-voltage negative sampling conductive end, but also has the battery high-voltage positive sampling conductive end and the battery high-voltage negative sampling conductive end, and the battery voltage test range is wider;

[0013] 2) the test voltage display screen is additionally arranged, and the voltage value can be accurately displayed;

[0014] 3) in the prior art, the battery low-voltage positive sampling conductive end is a groove structure, and the battery cannot be adapted for the battery with a larger volume, but the battery low-voltage positive and negative sampling conductive ends are designed as protruding structures in the utility model, and the application range is wider;

[0015] 4) in the prior art, the opposite sides of the shell I and the shell II are both magnetized, but the battery low-voltage positive and negative sampling conductive ends are designed as protruding structures in the utility model, and the protruding parts are provided with built-in magnets, only the battery low-voltage positive and negative sampling conductive ends have magnetism, the use of the magnet material can be reduced under the condition that the low-voltage battery to be measured can be fixed.

[0016] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the following embodiments of the utility model are taken as examples, and the detailed description is as follows in cooperation with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the premise of the drawings.

[0018] Figure 1 is the exploded view of the battery tester described in the embodiments;

[0019] Figure 2 is the first perspective assembly drawing of the battery tester described in the embodiments;

[0020] Figure 3 is the second perspective assembly drawing of the battery tester described in the embodiments;

[0021] Figure 4 is the cross-sectional view of the battery tester described in the embodiments;

[0022] Figure 5 is the battery test circuit schematic diagram of the battery tester described in the embodiments;

[0023] In the drawing: 1, flexible band; 2, shell I; 3, shell II; 4, battery high-voltage positive sampling conductive end; 5, battery high-voltage negative sampling conductive end; 6, battery low-voltage positive sampling conductive end; 7, battery low-voltage negative sampling conductive end; 8, test voltage display screen; 9, battery test circuit board I; 10, magnet I; 11, bottom cover I; 12, bottom cover II; 13, magnet II; 14, battery test circuit board II. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical scheme in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments.

[0025] Please refer to Figures 1-5 The present embodiment provides a battery tester, which comprises a shell I 2 and a shell II 3 connected by a flexible band 1 with a built-in electric connection line, a battery high-voltage positive sampling conductive end 4, a battery high-voltage negative sampling conductive end 5, a battery low-voltage positive sampling conductive end 6, a battery low-voltage negative sampling conductive end 7, a battery test circuit board I 9 arranged in the shell I 2, a battery test circuit board II 14 arranged in the shell II 3, a voltage detection chip integrated with an AD converter, a battery high-voltage sampling circuit, a battery low-voltage sampling circuit and a test voltage display screen 8 electrically connected to the voltage detection chip. Figure 5 The specific structure, connection mode and part selection of the battery test circuit are given,Figure 5 The circuit in the upper left corner is a high-voltage sampling circuit for the battery, the circuit in the lower left corner is a low-voltage sampling circuit for the battery, the middle part is a voltage detection chip, and the right part is a test voltage display screen 8. The positive and negative sampling ends of the low-voltage sampling circuit for the battery are electrically connected to the low-voltage positive sampling conductive end 6 and the low-voltage negative sampling conductive end 7 of the battery, respectively. The positive and negative sampling ends of the high-voltage sampling circuit for the battery are electrically connected to the high-voltage positive sampling conductive end 4 and the high-voltage negative sampling conductive end 5 of the battery, respectively.

[0026] In this embodiment, voltages lower than 5V are shown as low voltages, and voltages greater than or equal to 5V are shown as high voltages.

[0027] In this embodiment, the battery test circuit board I 9 and the battery test circuit board II 14 are connected by the built-in electrical connection line of the flexible belt 1 to realize the connection of each circuit part.

[0028] In this embodiment, the high-voltage sampling circuit for the battery, the low-voltage sampling circuit for the battery, the low-voltage negative sampling conductive end 7 of the battery, the high-voltage positive sampling conductive end 4 of the battery, and the high-voltage negative sampling conductive end 5 of the battery are arranged on the battery test circuit board I 9. The voltage detection chip, the test voltage display screen 8, and the low-voltage positive sampling conductive end 6 of the battery are arranged on the battery test circuit board II 14, and the test voltage display screen 8 is exposed on the side of the shell II 3 facing away from the shell I 2.

[0029] In this embodiment, the low-voltage positive sampling conductive end 6 and the low-voltage negative sampling conductive end 7 of the battery are distributed on the opposite sides of the shell II 3 and the shell I 2, and are respectively provided with the magnet II 13 and the magnet I 10. The low-voltage positive sampling conductive end 6 and the low-voltage negative sampling conductive end 7 of the battery are both hollow protruding structures, and the magnet II 13 and the magnet I 10 are respectively built in the hollow parts thereof.

[0030] In this embodiment, the high-voltage positive sampling conductive end 4 and the high-voltage negative sampling conductive end 5 of the battery are both arranged on the side of the shell I 2 facing away from the shell II 3.

[0031] In this embodiment, the shell I 2 and the shell II 3 are both detachable structures, and they are respectively provided with the bottom cover I 11 and the bottom cover II 12.

[0032] For the battery tester described in this embodiment, no additional power supply is needed, and power is taken from the battery to be tested, combined with the voltage detection chip and the test voltage display screen 8, to realize the battery test process. Figure 5 As shown in the figure, the battery test process of the battery tester described in this embodiment is as follows:

[0033] The battery to be tested is connected to the input end of the tester through the 1.5V interface, at this time, if the voltage is higher than 3V, the voltage boosting chip U1 will not work (if lower than 3V, the voltage boosting chip U1 works), and the voltage reducing chip is switched to supply power to the MCU, the MCU calculates the current voltage by collecting the original voltage of the input end through the ADC and displays the voltage on the test voltage display screen 8; if the battery to be tested is higher than 5V and is connected to the input end of the tester through the 9V interface, at this time, the voltage is reduced to 3V through U2 to supply power to the MCU, and the MCU calculates the current voltage by collecting the original voltage of the input end through the ADC and displays the voltage on the test voltage display screen 8.

[0034] The preferred embodiments of the utility model are described above only, and are not used to limit the utility model, for the person skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A battery tester, comprising a battery test circuit board, a shell I (2) and a shell II (3) connected by a flexible band (1) with built-in electrical connection lines, the battery test circuit board is provided with a battery low-voltage positive sampling conductive end (6) and a battery low-voltage negative sampling conductive end (7), which are distributed on the opposite sides of the shell II (3) and the shell I (2), characterized in that the battery test circuit board is further provided with a test voltage display screen (8), a battery high-voltage positive sampling conductive end (4) and a battery high-voltage negative sampling conductive end (5), which are all arranged on the side of the shell I (2) away from the shell II (3). The battery test circuit board is provided with a battery low-voltage sampling circuit, a battery high-voltage sampling circuit and a voltage detection chip integrated with an AD converter, and the battery low-voltage sampling circuit, the battery high-voltage sampling circuit and the test voltage display screen (8) are all electrically connected to the voltage detection chip; the positive and negative sampling ends of the battery low-voltage sampling circuit are respectively electrically connected to the battery low-voltage positive sampling conductive end (6) and the battery low-voltage negative sampling conductive end (7); the positive and negative sampling ends of the battery high-voltage sampling circuit are respectively electrically connected to the battery high-voltage positive sampling conductive end (4) and the battery high-voltage negative sampling conductive end (5).

2. The battery tester of claim 1, wherein, The battery low-voltage positive sampling conductive end (6) and the battery low-voltage negative sampling conductive end (7) are both convex structures with built-in magnets.

3. The battery tester of claim 2 wherein, The shell I (2) and the shell II (3) are both detachable structures with bottom covers.

4. The battery tester of claims 1 or 2, wherein, The battery test circuit board comprises a battery test circuit board I (9) arranged in the shell I (2) and a battery test circuit board II (14) arranged in the shell II (3), the battery test circuit board I (9) and the battery test circuit board II (14) are connected by the built-in electrical connection lines of the flexible band (1); the battery high-voltage sampling circuit, the battery low-voltage sampling circuit, the battery low-voltage negative sampling conductive end (7), the battery high-voltage positive sampling conductive end (4) and the battery high-voltage negative sampling conductive end (5) are arranged in the battery test circuit board I (9); the voltage detection chip, the test voltage display screen (8) and the battery low-voltage positive sampling conductive end (6) are arranged in the battery test circuit board II (14).

5. The battery tester of claim 2 wherein, The test voltage display screen (8) is exposed on the side of the shell II (3) away from the shell I (2).

6. The battery tester of claim 2 wherein, ​

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