SI21311A

SI21311A - Device for testing electric circuit conections

Info

Publication number: SI21311A
Application number: SI200200264A
Authority: SI
Inventors: Jože Drobun
Original assignee: Jože Drobun; ŠTIRN & CO., IZDELAVA POGREBNE OPREME, d.o.o.
Priority date: 2002-10-28
Filing date: 2002-10-28
Publication date: 2004-04-30

Abstract

The device for testing electric circuit conections in a mechanical way is made from a mechanical vibration generator (1), a power controller (2) and vibration amplitude controller (2'), a clamping head (3) and a vibration adapter (4). Everything is located inside the chassis (5) of any, preferably ergonomic shape. The mechanical vibrations generator (1) is preferably made from a core (7) for example U-shaped core with a coil (8) on at least one leg. In the area of the free ends of the core (7) there is an armature (9), which is linked to a vibration adapter (4) being at the same time supported by a spring (10) operating against the force of the electromagnetic field of the coil (8). The spring (10) is embedded in the element as a vibration power controller (2), which is preferably made as a nut on the enclosure, while the mechanical vibrations frequency controller (2') of the adapter (4) is implemented like any electric power frequency inverter.

Description

Drobun JožeDrobun Jože

Štirn & Co., izdelava pogrebne opreme, d.o.o.Štirn & Co., Funeral Equipment Manufacture, d.o.o.

Naprava za preizkušanje spojev električnih vezijDevice for testing electrical circuit connections

Predmet izumaThe subject of the invention

Predmet izuma je naprava za preizkušanje spojev električnih vezij v poljubnih napravah, tako novih pri kontroli izdelka, zlasti pa pri servisiranju, pri čemer se razumejo spoji kot spajkani spoji,stični konektorji, stični kontakti, redkeje tudi vijačeni spoji, ipd.The subject of the invention is a device for testing the connections of electrical circuits in any device, both new in product control, and especially in servicing, whereby solder joints, contact connectors, contact contacts, and rarely screw connections, etc. are understood.

Tehnični problemA technical problem

Tehnični problem, ki ga rešuje izum je, kako zasnovati tako napravo, s katero je mogoče preizkušati mehansko trdnost posameznega električnega spoja in s tem posredno tudi električno prevodnost skozenj, ne da bi s tem obremenjevali okoliških elementov.A technical problem solved by the invention is how to design a device that can test the mechanical strength of an electrical joint, and thus indirectly the electrical conductivity through it, without burdening the surrounding elements.

Znano stanje tehnikeThe prior art

Znano je, da se pri izdelavi ali pa med uporabo sčasoma presek spoja električnega vezja manjša iz različnih vzrokov, s tem pa se spreminja tudi njegova upornost v škodo delovanja naprave kot celote. Pogosto se dogaja, da pride do popolne prekinitve električne prevodnosti, kar pa ni videti na pogled. Taka sprememba prevodnosti se spreminja s temperaturo spoja, ki je odvisna od jakosti toka, kiIt is known that during the manufacture or during use, the cross-section of the circuit of the circuit decreases over time for various reasons, thus changing its resistance to the detriment of the operation of the device as a whole. It is often the case that a complete interruption of electrical conductivity occurs, which is not apparent. Such a change in conductivity varies with the junction temperature, which depends on the strength of the current that

28526-1 .doc /XI-02/D-31 -Vr teče skozenj in tudi okoliške temperature. Zato je zelo težko najti okvarjen spoj v navedenem smislu, ker se okvar kaže le v določenih pogojih.28526-1 .doc / XI-02 / D-31 -The heat flows through as well as the surrounding temperatures. Therefore, it is very difficult to find a defective joint in the above sense, since the defect is manifested only in certain conditions.

Za ugotavljanje mehanske trdnosti električnih spojev v gornjem smislu se uporablj aj o priročna sredstva za iz vaj anj e mehanskih sunkov na skupine električnih elementov. Npr. z udarjanjem z izvijačem ali s kladivom po ohišju ali drugem bolj mehansko odpornem delu naprave se prenesejo vibracije na vse električne elemente, pri čemer hkrati opazujemo spremembe na posameznih mestih s pomočjo osciloskopa ali drugega preizkuševalnega pripomočka. Vendar te postopek ne omogoča opazovanja obnašanja posameznega spoja, ampak več spojev hkrati, zato je potrebno s preizkusnim sredstvom, npr. z osciloskopomFor the purpose of determining the mechanical strength of electrical connections in the above sense, convenient means of applying mechanical shocks to groups of electrical elements shall be used. E.g. by striking a screwdriver or hammer on a housing or other more mechanically resistant part of the device, vibrations are transferred to all electrical elements, while at the same time observing changes at individual places with the help of an oscilloscope or other test accessory. However, this procedure does not allow observing the behavior of a single joint but several joints at one time, so it is necessary to use a test agent, e.g. with an oscilloscope

Drug način tovrstnega preizkušanja je ogrevanje ali ohlajevanje preizkušanca. Tudi v tem primeru ne moremo lokalizirati preizkusa le na en spoj. Razen tega je ohlajevaje s plinom problematično zaradi nastalega kondenzata, ki lahko povzroča nezaželene kratke stike med tokovodniki. Tudi cena ohlajevalnega plina ni nezanemarljiva.Another way of testing this is to heat or cool the test subject. Even in this case, we cannot localize the experiment to only one joint. In addition, gas cooling is problematic due to condensation which may cause unwanted short circuits between the current lines. Also, the price of cooling gas is not insignificant.

Ključna pomanjkljivost obeh načinov preizkušanja je v nezmožnosti omejitve preizkusa na posamezen spoj, ki ga hkrati tudi opazujemo s preizkuševalnim sredstvom, npr. osciloskopom, s čimer je nedvoumno pregledan vsak spoj oziroma odkrita napaka na pravem spoju.The key disadvantage of both test methods is the inability to limit the test to a single joint, which is also observed with the test agent, e.g. the oscilloscope, which unequivocally inspects each joint or defects at the right junction.

Rešitev tehničnega problemaThe solution to a technical problem

Opisani tehnični problem je rešen z napravo po izumu, katere značilnost je v tem, da generator mehanskih vibracij prenaša preko prostega konca približno paličastega nastavka vibracije na preizkušani spoj, ki ga hkrati opazujemo s preizkusnim sredstvom, npr. osciloskopom, kontrolno lučko ipd. GeneratorThe described technical problem is solved by the device according to the invention, characterized in that the mechanical vibration generator transmits through the free end of the approximately rod-like vibration mount to the test joint, which is simultaneously observed by the test means, e.g. oscilloscope, control port, etc. Generator

28526-1 .doc /XI-02/D-31 -Vr vibracij naprave po izumu ima prednostno predviden tudi regulator jakosti vibracij zaradi prilagoditve vibracij različnim vrstam spojev in njihovemu stanju.28526-1 .doc / XI-02 / D-31 -Vr of the vibrations of the device according to the invention also preferably has a vibration strength controller for adjusting the vibrations to different types of joints and their condition.

Razen tega so naprave po izumu izvedene v različnih stopnjah glede jakosti vibracij za različne skupine preizkušancev: za električna in elektronska vezja je predvidena šibkejša oblika naprave z ustrezno majhnimi paličastimi nastavki, ki so ravni in ukrivljeni v smislu črke J, s katerima lahko obremenimo z vibracijami posamično vse spoje in druge elemente na tiskanem vezju. Za večje električne spoje npr. na stikalih in konektoijih večjih dimenzij.In addition, the devices according to the invention are made in varying degrees of vibration strength for different groups of subjects: for the electrical and electronic circuits, a weaker device design is provided with correspondingly small rod-like attachments, which are straight and curved in the sense of letter J, which can be vibrated with individually all joints and other elements on the circuit board. For larger electrical connections e.g. on switches and connectors of larger dimensions.

Podrobneje bo bistvo izuma pojasnjeno v nadaljevanju z opisom izvedbenega primera in priložene risbe, na katerih kaže sl. 1 napravo po izumu v vzdolžnem preseku.The essence of the invention will be explained in more detail below with a description of an embodiment and the accompanying drawings, in which FIG. 1 is a longitudinal section of the device according to the invention.

Naprava za preizkušanje spojev električnih vezij je izvedena iz generatoija 1 mehanskih vibracij, regulatorja 2 jakosti in regulatorja 2' frekvence vibracij, vpenjalne glave 3 in vibracijsekga nastavka 4, kar je vse nameščeno v ohišju 5 poljubne ergonomske oblike, prirejene različnim načinom dela. Električna energija za generator vibracij je lahko dovedena preko električne vrvice 6 iz omrežne instalacije ali pa je predviden akumulator, vgrajen v ohišju 5.The device for testing the connections of electrical circuits is made of a generator 1 of mechanical vibrations, a regulator 2 of the power and a regulator 2 'of the vibration frequency, the clamping head 3 and the vibration socket 4, all located in a housing 5 of any ergonomic shape, adapted to different modes of operation. Electricity for the vibration generator may be supplied through the power line 6 from the mains installation or a battery installed in the housing 5 may be provided.

Generator 1 vibracij je v prednostni obliki izveden kot jedro 7, npr. v obliki črke U s tuljavo 8 na vsaj enem kraku. V območju prostih koncev jedra 7 je nameščena kotva 9, ki je povezana z vibracijskim nastavkom 4. Kotva 9 je v enem izvedbenem primeru uležajena kar na enem prostem koncu jedra 7 in niha s spreminjanjem magnetnega polja, ki ga tvori tuljava 8. Nastavek 4 je nadalje oprt na vzmet 10, ki deluje nasproti sili elektromagnetnega polja tuljave 8. SThe vibration generator 1 is preferably in the form of a core 7, e.g. U-shaped with coil 8 on at least one arm. In the area of the free ends of the core 7, an anchor 9 is mounted, which is connected to the vibrating attachment 4. In one embodiment, the anchor 9 is mounted at one free end of the core 7 and oscillates by changing the magnetic field formed by the coil 8. The extension 4 is further supported by a spring 10 acting against the force of the coil electromagnetic field 8. S

28526-1 .doc /XI-02/D-31 -Vr spreminjanjem sile vzmeti 10 z regulatorjem 2 jakosti, ki je izveden kot sedež vzmeti in hkrati kot matica na ohišju, spreminjamo jakost vibracij. Frekvenco vibracij spreminjamo z regulatoijem 2', ki je poljuben znan frekvenčni regulator električnega toka. Tako izveden generator 1 generira vibriranje nastavka 4 v njegovi osni smeri.28526-1 .doc / XI-02 / D-31 - By varying the force of the spring 10 with a power regulator 2, which is made as a spring seat and at the same time as a nut on the housing, we change the vibration strength. The frequency of vibrations is varied by the regulator 2 ', which is any known frequency regulator of the current. The generator 1 thus produced generates a vibration of the attachment 4 in its axial direction.

Lahko pa je generator 1 izveden kot elektromagnetna tuljava z jedrom in kotvo tako, da generira vibriranje nastavka v radialni smeri ali pa v sestavljeni smeri in sicer aksialni in radialni.Alternatively, generator 1 may be designed as an electromagnetic coil with a core and an angle in such a way that it generates vibration of the adapter in the radial direction, or in the composite direction, axially and radially.

Nastavek 4 je glede na obliko in velikost prednostnih preizkusancev oblikovan različno, prednostno pa paličasto ali pa v obliki črke J in izdelan iz električno neprevodnega materiala.The nozzle 4 is shaped differently according to the shape and size of the test specimens, preferably the rod or the J-shaped and made of electrically non-conductive material.

Razume se, da lahko tretja oseba na osnovi poznavanja opisa izuma izveden tudi druge izvedbene primere, ne da bi obšel bistvo izuma, ki je opredeljeno v sledečih patentih zahtevkih.It is understood that a third party may, on the basis of knowledge of the description of the invention, perform other embodiments without circumventing the essence of the invention as defined in the following patent claims.

Claims

L Mechanical circuit testing device, characterized in that it is derived from a mechanical vibration generator (1), a power regulator (2), and a regulator (2 *) for the vibration amplitude, the clamping head (3) and the vibrating attachment (4) ), which is all housed in a housing (5) of any, preferably ergonomic shape, wherein the mechanical vibration generator (1) is preferably in the form of a core (7), e.g. U-shaped with coil (8) on at least one arm and in the area of the free ends of the core (7) an anchor (9) is mounted, which is connected to a vibrating attachment (4), which is simultaneously supported by a spring (10), which acts opposite to the force of the electromagnetic field of the coil (8), the spring (10) being held in the element as a regulator (2) of vibration strength, preferably implemented as a nut on the housing.

Apparatus according to claim 1, characterized in that the vibration frequency control (2 ^f ) is an arbitrary frequency regulator of the electric current,

Device according to claims 1 and 2, characterized in that the generator (1) generates vibration of the attachment (4) in its axial direction and / or radial direction.

Device according to Claims 1 to 3, characterized in that the nozzle (4) is made according to the shape and size of the preferred subjects differently, preferably rod-shaped or J-shaped and made of electrically non-conductive material.

Apparatus according to claims 1 to 4, characterized in that the electricity for the vibration generator (1) can be supplied via a power line (6) from the network installation or a battery is provided, preferably incorporated in the housing (5).