Electrical test head used for keyboard key electrical performance testing

Abstract

The invention discloses an electrical test head used for keyboard key electrical performance testing. The electrical test head comprises a holder which is vertically distributed, first and second crossbars which vertically pass through and are locked on the holder, a fixation ring, a limiting ring and a test head assembly which is arranged on the fixation ring, wherein the fixation ring and the limiting ring are respectively arranged on the same side end of first and second crossbars. The test head assembly comprises an electromagnet and a weight from top to bottom, wherein the electromagnet and the weight are in lap connection. The electromagnet is fixed on the fixation ring. The top end of the electromagnet is a free end and is connected with a test wire. The bottom end of the electromagnet runs into the top end of the weight and is locked by a gasket. The weight is sleeved by the limiting ring. The top end of the weight is in sleeve joint with the bottom end of the electromagnet, and is hung on and in lap connection with the gasket. The bottom end of the weight is a free end, and acts on keys in a keyboard to be tested. The weight acts on the keys, is stressed upward, and moves upward along the bottom end of the electromagnet. The electrical test head has the advantages of high automation degree, accurate and efficient testing, flexible, smooth and precise adjustment, and high versatility, and is suitable for keyboard key layout of different products.

Description

technical field [0001] The invention relates to a testing mechanism, in particular to an electrical test head for testing the electrical properties of keyboard keys, and belongs to the technical field of components for keyboard automatic testing equipment. Background technique [0002] As the main input structure, keys are widely used in electronic products such as computer keyboards, mobile phones, and calculators; for electronic products such as computer keyboards, mobile phones, and calculators, keys must be tapped during work to make the key contacts conduct Disconnect to input letters, numbers, punctuation marks, etc. into the corresponding computer, mobile phone or calculator. [0003] Therefore, whether the quality of the keyboard and its functions operate normally will directly affect the stability of the operation of the electronic equipment. At the same time, the direct operating unit in the keyboard is the key, so the quality test of the key is a crucial link for...

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide an electric test head for testing the electrical performance of keyboard keys, which is compact in structure, convenient in disassembly and assembly, easy to manufacture, safe and reliable, and strong in practicability. The automatic test electrical function not only has a high degree of automation, accurate and efficient testing; it can also overcome the shortcomings of the traditional component test structure, which is complicated and inconvenient to maintain. It is simple and durable, and greatly saves the replacement cost of test equipment; High versatility, better adaptability to keyboard key layouts of different products, and extremely valuable in industry

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