Universal meter battery box

Abstract

The invention discloses a universal meter battery box. The universal meter battery box comprises a box body, battery chambers and a box cover, wherein an upper cavity and a lower cavity are formed in the box body, a DC/DC converter is arranged in the box body, the upper cavity and the lower cavity are used as the battery chambers, a groove is formed in the box cover, and an elastic component is arranged in the groove in pivoting mode through a rigid rod. The universal meter battery box can be embedded in a universal meter, or can be connected with the exterior of the universal meter. Due to the fact that the universal meter battery box is provided with the upper cavity, the lower cavity and the DC/DC converter, various batteries can be selected for supplying electricity, voltage of needed value can be output through conversion of the DC/DC converter, the universal meter battery box is not restricted to one specification of the battery, usage expansion of the universal meter is facilitated, power contact performance of the universal meter battery box is good, the universal meter battery box guarantees that power is supplied to the universal meter in stable voltage, and the use problems that the universal meter performs inaccurate measurement under the circumstance that battery capacity is reduced and the like are solved.

Description

technical field [0001] The invention relates to battery box technology, in particular to a multimeter battery box. Background technique [0002] Before the present invention, the power source usually used in existing multimeters was single, and only one specification of dry batteries could be placed in the battery box of the multimeter for power supply. However, multimeters are widely used in production and life. When the multimeter is in urgent need of use, no other alternative power supply can be found to use it, which will bring certain troubles to the user. Common batteries include 1.5V dry batteries and smart devices such as mobile phones that use rechargeable lithium batteries. Dry batteries are easy to buy, smart devices are ubiquitous, and lithium batteries are readily available. However, dry batteries and lithium batteries of different specifications cannot be directly used in the multimeter. [0003] Chinese Patent Authorization Announcement No. CN202083711U, th...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to design and develop a multimeter battery box, the battery box can be embedded in the multimeter, or connected externally to the multimeter, and commonly used batteries can be selected as the battery source of the multimeter, not limited to batteries of one specification , which is conducive to expanding the use of the multimeter, and the power supply of the battery box is in good contact, ensuring a stable voltage supply to the multimeter, and avoiding inaccurate measurement of the multimeter due to the decrease in battery power.

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