NPN-type collecting electrode open circuit two-phase output type photoelectric encoder
A photoelectric encoder and open-collector technology, applied in the field of photoelectric encoders, can solve problems affecting product reliability, high replacement costs, and short service life, and achieve the effects of easy promotion and use, convenient processing and production, and long working life
Inactive Publication Date: 2014-05-14
SHAANXI HONGXING ELECTRONICS COMPONENTS
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Problems solved by technology
Under this voltage environment, the scrap rate of the product within a year of continuous operation is about 40%, which seriously affects the reliability of the product. The quality of the product is poor, the service life is short, and the replacement cost is high.
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[0026] like figure 1 As shown, the present invention includes a shell 11 with an open end and a base 4 fixedly connected to the open end of the shell 11, and a signal processing circuit board 12 arranged in the cavity formed by the shell 11 and the base 4 , a bearing 3 is installed on the base 4, a rotating shaft 1 with one end located outside the housing 11 and the other end located inside the housing 11 is installed on the bearing 3, and a section of the rotating shaft 1 located inside the housing 11 A code wheel base 8 is fixedly connected, and a code wheel 7 is fixedly connected to the code wheel base 8, and a photoelectric module 13 is fixedly connected to the base 4 below the code wheel base 8, and the photoelectric module 13 is provided with The groove 13-1 for inserting the code disc 7, the photoelectric module 13 is integrated with a light transmitter and a light receiver, and the light transmitter and light receiver are respectively located on both sides of the groov...
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The invention discloses an NPN-type collecting electrode open circuit two-phase output type photoelectric encoder comprising a shell, a pedestal which is connected onto the shell and a signal processing circuit board which is arranged in the shell. The pedestal is provided with a bearing which is provided with a rotating shaft. One segment of the rotating shaft, which is arranged in the internal part of the shell, is fixedly connected with a code disc base. The code disc base is fixedly connected with a code disc. The position of the pedestal, which is arranged below the code disc base, is connected with a photoelectric module. The photoelectric module is provided with a groove used for insertion of the code disc. An optical emitter and an optical receiver are integrated in the photoelectric module. The optical emitter and the optical receiver are respectively arranged on the two sides of the groove. A four-core cable is connected onto the signal processing circuit board. Four cores in the four-core cable are a power supply anode connecting wire, a power supply cathode connecting wire, an A-phase output wire of the photoelectric encoder and a B-phase output wire of the photoelectric encoder respectively. The photoelectric encoder is compact in structure, convenient to process and manufacture, low in heating, great in heat radiation performance, high in working reliability, long in the working service life and high in practicality.
Description
technical field [0001] The invention relates to a photoelectric encoder, in particular to an NPN open-collector two-phase output photoelectric encoder. Background technique [0002] With the increase in the production of domestic automation equipment, the demand for incremental NPN open-collector two-phase output photoelectric encoders also increases. However, in the 24V DC environment, the quality and performance of similar products at home and abroad are very unstable. The product shell is hot, and the body temperature is about 50 degrees Celsius. Under this voltage environment, the scrap rate of the product within one year of continuous operation is about 40%, which seriously affects the reliability of the product. The quality of the product is poor, the service life is short, and the replacement cost is high. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an NPN open-collector two-phase output photoelectric...
Claims
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IPC IPC(8): G01D5/26G01D11/24
Inventor 何钢刘涛王继红赵博佳
Owner SHAANXI HONGXING ELECTRONICS COMPONENTS