SU849565A1

SU849565A1 - Contact device for testing terminalless radio components

Info

Publication number: SU849565A1
Application number: SU792826326A
Authority: SU
Inventors: Вадим Иванович Иванов; Александр Иванович Коломейчук
Original assignee: Предприятие П/Я Р-6324
Priority date: 1979-10-01
Filing date: 1979-10-01
Publication date: 1981-07-23

Description

Изобретение относится к радиотехнике и может быть использовано для контроля электрических параметров радиоэлементов, в частности для контроля безвыводных конденсаторов.The invention relates to radio engineering and can be used to control the electrical parameters of radio elements, in particular for monitoring non-output capacitors.

Известно устройство для контроля эле- ⁵ктрических параметров плоских модулей, содержащее контакты, выполненные в виде изогнутых плоских пружин, закрепленных консолью на диэлектрических основаниях, расположенных параллельно £1}.A device for the control element ⁵ ktricheskih parameters flat modules comprising terminals formed as a curved flat spring fixed bracket on insulating substrates arranged parallel to £ 1}.

Однако устройство обладает низкими производительностью и точностью измерения, вызванными поштучным, контролем и переменной собственной емкостью' контактов устройства, возникающей при изменении размеров и типов загружаемых конденсаторов.However, the device has low performance and measurement accuracy caused by the piece, control and variable self-capacitance 'contacts of the device that occurs when the size and type of loaded capacitors changes.

Наиболее близким к предлагаемому по технической сущности является контактное_юустройство для контроля безвыводных радиоэлементов, содержащее диэлектрическое основание с размещенными на нем контактами Г2].The closest to the proposed technical essence is a contact device for monitoring _w leadless radioelements, comprising a dielectric base with contacts arranged thereon T2].

Недостатками этого устройства являются низкая производительность контроля радиоэлементов, например безвыводных конденсаторов, обусловленная их поштучной загрузкой и контролем (одно измерение за одну загрузку), и низкая точность измерения, из-за наличия переменной собственной емкости контактов, возникающей вследствие изменения размеров и типов конденсатора. Изменение собственной емкости контактов вызывает необходимость постоянной подстройки измерительной цепи, что также снижает производи- .The disadvantages of this device are the low monitoring performance of radio elements, for example, lead-free capacitors, due to their piece loading and control (one measurement per load), and low measurement accuracy, due to the presence of a variable intrinsic capacitance of contacts arising from a change in the size and type of capacitor. Changing the intrinsic capacitance of contacts makes it necessary to constantly adjust the measuring circuit, which also reduces production.

тельность контроля.control.

Цель изобретения - повышение точности измерения.The purpose of the invention is to improve the accuracy of measurement.

Поставленная цель достигается тем,что в контактном устройстве для контроля без:выводных радиоэлементов, содержащем диэлектрическое основание с размещенными на нем контактами, контакты выполнены в виде прямых плоских пружин, концы которых закреплены в основании, а их рабо· чие поверхности расположены под угломThis goal is achieved by the fact that in the contact device for monitoring without: output radioelements containing a dielectric base with contacts placed on it, the contacts are made in the form of straight flat springs, the ends of which are fixed at the base, and their working surfaces are angled

049666049666

Oi^arctg· f одна относительно другой,.' где f - коэффициент трения между рабочими поверхностями контактов и контактной поверхностью радиоэлемента.Oi ^ arctg · f one relative to the other ,. ' where f is the coefficient of friction between the working surfaces of the contacts and the contact surface of the radio element.

На фиг. 1 и 2 показан вариант испои- ₅нения устройства с контактами, образующими перекрещивающиеся ряды с одинаковым шагом; на фиг. 3 и 4 - го же с радиальным расположением контактов.In FIG. Figures 1 and 2 show an embodiment of a device ₅ with contacts forming intersecting rows with the same pitch; in FIG. 3 and 4 of the same with a radial arrangement of contacts.

Устройство содержит диэлектрическое 10основание 1, на котором размещены упругие контакты 2, выполненные в виде плоских пружин прямоугольного сечения, рабочие поверхности которых расположены ·. одна относительно другой под углом & , 15 не превышающим угол самоторможения, определяемый по формуле oL· ^anctg-F , где f - коэффициент трения между рабочими поверхностями контактов контактного устройства и радиоэлементов. Обыч- 20 но угол с/ не превышает 10 - 13° и зависит от покрытия рабочих поверхностей контактов.The device comprises a dielectric 10 base 1, on which elastic contacts 2 are made, made in the form of flat springs of rectangular cross section, the working surfaces of which are located ·. one relative to the other at an angle &, 15 not exceeding the angle of self-braking, determined by the formula oL · ^ anctg-F, where f is the coefficient of friction between the working surfaces of the contacts of the contact device and radio elements. Typically, 20 but the angle c / does not exceed 10 - 13 ° and depends on the coating of the working surfaces of the contacts.

Длина контактов. 2, размеры сторон их прямоугольного сечения и материал выби- 25 раются из условий обеспечения упругости контактов t и возможности подключения всех типоразмеров, подключаемых безвыводных радиоэлементов, например конденсаторов 3 с контактными площадками 4. 30The length of the contacts. 2, the dimensions of the sides of their rectangular cross-section and the material are selected 25 from the conditions for ensuring the elasticity of the contacts t and the possibility of connecting all sizes connected to lead-out radio elements, for example, capacitors 3 with contact pads 4. 30

Устройство работает следующим образом.The device operates as follows.

Безвыводные конденсаторы 3 с контак- тными площадками 4 вставляются между упругими контактами 2 и перемещаются ³⁵к вершине угла ос до тех пер, пока не произойдет их надежного заклинивания. Подобным образом заполняют все пары контактов контактирующего устройства.Lead-free capacitors 3 with contact pads 4 are inserted between the elastic contacts 2 and move ³⁵ to the apex of the angle os until they are reliably jammed. Similarly, fill all pairs of contacts of the contacting device.

В устройстве, изображенном на фиг. 1 ,⁴⁰ и 2, контроль производится с помощью контактных зондов системы, которые по 'программе поочередно контактируют с контактами 2 контактирующего устройства. Одновременно производится распечатка результатов измерений.In the device shown in FIG. 1, ⁴⁰ and 2, the control is carried out using the contact probes of the system, which according to the 'program alternately contact the contacts 2 of the contacting device. At the same time, a printout of the measurement results.

Контактное устройство по фиг. 3 и 4 целесообразно использовать с измерительным оборудованием, обеспечивающим одновременное контактирование по всему контактному полю устройства.The contact device of FIG. 3 and 4, it is advisable to use with measuring equipment that provides simultaneous contact across the entire contact field of the device.

Устройство обеспечивает незначительную величину и постоянство собственной емкости контактов, которая не зависит от размеров и типов измеряемых изделий. Поэтому ее достаточно один раз скомпенсировать (или учесть), чтобы при дальнейшем она не мешала измерениям. Это позволяет получить высокую точность измерения параметров конденсаторов,особенно при измерении малых емкостей.The device provides an insignificant size and constancy of its own capacitance of contacts, which does not depend on the sizes and types of measured products. Therefore, it is enough to compensate it once (or take it into account) so that in the future it does not interfere with the measurements. This makes it possible to obtain high accuracy in measuring capacitor parameters, especially when measuring small capacitances.

Claims

The invention relates to a radio photoelectric system and can be used to control the electrical parameters of radio elements, in particular, to control leadless capacitors. A device for controlling electrical parameters of flat modules is known, which comprises contacts made in the form of bent flat springs secured by a console to dielectric bases arranged in parallel. However, the device has a low productivity and accuracy of measuring VIY, caused by a piece, control and variable own capacitance of the device contacts, which occurs when changing sizes and types of condensate loads. Closest to the proposed technical entity is a contact device for the xstrol of leadless nuclear elements containing a dielectric base with contacts placed on it. The disadvantages of this device are | low performance of xsrol radio detectors, such as leadless condensates, due to their single load and control (one measurement per load), and low measurement accuracy due to the variable own capacitance of the contacts due to the change and types of capacitor . Changing the own contact capacity is necessary; the constant capacity of the measuring circuit, which also reduces production. accuracy of control The purpose of the invention is to improve measurement accuracy. The goal is achieved by the fact that in the contact device for controlling without output radio elements containing a electric base with contacts on it, the contacts are made in the form of straight flat springs, the ends of which are fixed at the base, and their working surfaces are not at an angle of 3b4 CtitOtrctg f one fireproof. apyroS, where f is the coefficient of grenn between the working contact surfaces and the x-tact surface of the radio element. Figs. 1 and 2 show an embodiment of the device with contacts forming intersecting rows with the same pitch; in fig. 3 and 4 - th with a radial arrangement of contacts. The device contains a dielectric base 1, on which are placed elastic cc "casts 2, made in the form of flat springs of rectangular cross section, the working surfaces of which are located one relative to another at an angle (Xi not exceeding the self-locking angle, defined by the formula L arctgf-Fj where .f is the coefficient of friction between the contact surfaces of the contact device and radio elements. Typically, the angle ci / does not exceed 10–13 ° and depends on the coverage of the working surfaces of the contacts. The cross section and the material are selected from the conditions for ensuring the elasticity of the contacts t and the possibility of connecting all sizes, connected lead-free radio elements, for example, capacitors 3 with contact pads 4. The device works as follows: Leadless condensates 3 with contact pads 4 are inserted between the elastic contacts 2 and move to the top of the angle of the wasps until such time as they are securely seized. In a similar way, all pairs of contacts of the contacting device are filled. In the device shown in FIG. 1 n 2, the monitoring is carried out with the help of x-fusion probes of the system, which according to the program are alternately contacted with contacts 2 of the contacting device. At the same time, a printout of the measurement results is performed. The contact device of FIG. 3 and 4 it is advisable to use with the measuring equipment, providing simultaneous contact over the entire contact field of the device. The device provides a small amount and stability of the own contact capacity, which does not depend on the sizes and types of the measured items. Therefore, it is sufficient to compensate for it once (or to take into account) so that, in the future, it does not interfere with the measurement. This allows one to obtain a high accuracy of measuring the parameters of capacitors, especially when measuring small capacitances. Claims of the invention A contact device for monitoring lead-free radio elements containing a radio-electric base with contacts placed on it, characterized in that, in order to improve measurement accuracy, the contacts are made in the form of straight flat springs, the ends of which are fixed at the base, and their working surfaces are located under the angle oJ oirctg f is relative to each other, where b is the coefficient of friction between the working contact surfaces and the contact surface of the radio element. Sources of information taken into account during the examination 1. USSR author's certificate No. 513538, cl. N About K 1 / O4, 1974.

2. USSR author's certificate number 5089OS, cl. H 05 K 13/08, 1974 (prototype).

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