Electrical test head used for keyboard key testing

Abstract

The invention discloses an electrical test head used for keyboard key testing. The electrical test head comprises a holder which is vertically distributed, first and second expansion joints which are orderly arranged on the holder, 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 first and second expansion joints. 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 compact structure, high practicability, 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 keyboard key testing, and belongs to the technical field of components for automatic keyboard 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 the keyboard. In the keyboar...

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 keyboard key testing with compact structure, convenient assembly and disassembly, easy manufacture, safety and reliability, and strong practicability, which is used to realize the operation of the keyboard on the premise of reducing manual participation. Automatic testing of electrical functions, not only has a high degree of automation, accurate and efficient testing, but also overcomes the shortcomings of traditional component testing structures that are not easy to maintain, is simple and durable, and greatly saves the replacement cost of testing equipment; at the same time, it is flexible and adjustable , stronger versatility, better adaptability to keyboard key layouts of different products, and extremely valuable in industry

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