DE737924C - Device for electrically charging fences or the like. - Google Patents

Description

Device for electrically charging fences or the like. It is known to electrically charge pasture fences in order to prevent grazing animals from breaking out of fenced grazing animals in a simple yet effective manner. The devices known for this purpose have a relatively high internal consumption, which is more unpleasant than such devices are in most cases fed by dry batteries.

The invention now shows a new way of using Wddezäunie extremely easy to load electrically. According to the invention isel with waste or response delay working relay provided with a wiper contact controls which one is connected to the high voltage side of the fence to be charged Transformer briefly applies DC voltage on the low-voltage side.

The object of the invention is illustrated in. The drawing, for example. The embodiment according to the invention consists of a relay i with drop-out delay # the z. B. can be obtained in a manner known per se by a parallel-connected, preferably adjustable capacitor 2, as well as a normally closed contact 3 and wiper contact 4 controlled by the relay i. In parallel with the wiper contact is a capacitance 5, preferably in series with a resistor, switched, which acts as a extinguishing device. Through the wiper contact 4, which is adjusted so that it only opens in the last part of the, Ankerhuhes #, the excitation of the primary coil is a-it z. B. known ignition transformer, 6 controlled, the high voltage side ah is connected to the pasture fences to be charged. In addition, another switch 7 for Inbletriebsetzung of erfi 'ndungsgemäßen charging; device is provided. I The device according to the invention; 19 works as follows: If the switch 7 is closed, the entire device is connected to a direct voltage, preferably the voltage of a dry battery, and the relay i is thus made to respond without delay. During the response process, contact 3 will then open - and the coil. of the relay i and the capacitor 2 switch off. At the same time, the relay i will actuate the wiper contact 4 and thus connect the low-voltage coil of the transformer 6 1-, ti> rz7-sided to the DC voltage. A brief current surge will then occur on the high voltage side.

After a certain set time, e.g. B. after about i second, relay i will drop out and the wiper contact will again give a current surge to the low-voltage transformer winding. When relay i drops out, contact 3 is closed and the relay is again made to respond. So this game will repeat itself.

The device according to the invention only needs one, low power, as it only consumes current during the relay's response time - So that dry batteries can be used without difficulty. aside from that the device is extremely insensitive to changes in position.

In the case of the exemplary embodiment, t3 play is used in both The low-voltage winding drops out as well as when the delayed relay responds of the transformer is applied briefly. So in a certain time interval, z. B. within i second, two consecutive power surges on the pasture fence given.

It is of course also possible not to see a double surge within this time interval, but only a single surge of electricity on the Weideza-Lin. In order to achieve this, an additional break contact (not shown in% of the drawing) can be provided in series with the wiper contact 4, which is also controlled by the relay i. This additional -]! Before Rtih # eko.ntal, -t is then designed or set in such a way that it only opens in the last part of the armature stroke and only closes in the last part of the armature fallback. As a result, the low-voltage winding of the transformer 6 is applied to the DC voltage even though the wiper contact is closed when the relay i responds, but not during the drop-out.

The size of the power consumption of the charger does not matter, this can eg g "Wis-cherrelals - ehenenfalls instead of a drop-out delay is a response delay 'for example by means of a drive can be obtained..

Claims (2)

PATENT CLAIMS: i. Means for electrically charging of fences, in particular pasture fences, characterized by a parachute with the absence or Ansprechverzögerun -, operating relay, which controls a wiper contact -welcher a high-voltage side atif7u to] ad, end # nZauina-ngesichloss # eni, - , nTr # insformator briefly applies a DC voltage on the low-voltage side. 2. Device according to claim i, d # -characterized in that dias with drop-out delay, arheitende relay interrupts its excitation circuit after responding itself. 3. Device according to claim i or 2, characterized in that the front of the relay controlled contact wipers either only in response or only when winding of the relay fall Niedürspannungswicklung the transformer kurzzeiti, 2, applies a DC voltage. b 4. Device according to claim 3, characterized in that the relay is provided with an additional contact lying in series with the wiper contact, which is designed or set that the transformer only when responding, but not when the relay drops out on the low voltage side a DC voltage is fed through the wiper contact. 5. Device according to claim i or the following, characterized -el, -eiin7eichn-et that a known ignition transformer is used as the transformer -, vird.