CN106848926B8 - The working method of electric power separation net - Google Patents

Abstract

The invention provides a working method of the electric isolation net, the electric isolation net comprises a top net plate, and the top net plate comprises two layers of metal nets, and a layer of insulating net is sandwiched between the two layers of metal nets; The layered metal mesh is electrically connected to two electrodes of a low-voltage power supply to form a low-voltage circuit; a relay is connected in series in the low-voltage circuit, and the relay triggers and closes a delay switch. After the delay switch is closed, the The two layers of metal mesh are electrically connected with two electrodes of a high voltage power supply. The power isolation net can not only isolate the birds, but also prevent them from staying on the isolation net.

Description

The working method of the power isolation network

technical field

The present invention relates to the protection isolation network field, particularly, is a kind of electric power isolation network.

Background technique

For various special space areas, it is often necessary to adopt isolation nets to carry out protective isolation; as, fruit forests, farms, etc., mainly in order to prevent birds from pecking at fruits, or mix into farms, and rob food or spread germs with poultry; However, the current isolation nets are usually single-layer metal nets or nylon nets. Although they can block birds, the birds tend to catch on the isolation nets and covet the isolation area, and excrete feces in the isolation area. The interior is very dirty, and it is very likely that the outside world will spread the virus to the isolation area through feces.

Contents of the invention

Summary of the invention At the problems referred to above, the object of the present invention is to provide a kind of power isolation net, this power isolation net can not only isolate birds, and can make it impossible to stay on the isolation net.

The first kind of technical scheme adopted in the present invention is: this power isolation net comprises top net plate, and described top net plate comprises two-layer metal net, sandwiches one deck insulation net between described two-layer metal net ; The two-layer metal mesh is electrically connected to two electrodes of a low-voltage power supply to form a low-voltage circuit; a relay is connected in series in the low-voltage circuit, and the relay triggers and closes a delay switch, and the delay switch is closed Finally, the two layers of metal mesh are electrically connected to two electrodes of a high-voltage power supply.

As preferably, the metal mesh described in each layer is formed by the densely woven mesh, and the maximum size of the mesh is 3mm ~ 5mm, so that the fingers of the human body cannot be stretched into the mesh, and the bird's paws can grasp into the mesh.

As preferably, described high-voltage power supply is high-frequency alternating current power supply, and its frequency is not lower than 100KHz; According to the skin effect of high-frequency alternating current, even poultry paw is directly grasped on described two-layer metal net, and high-voltage alternating current is loaded on On the poultry's paws, it only makes the surface of the poultry's paws hot, without causing them to get an electric shock, so as to avoid harming the birds; furthermore, the end of the low-voltage power supply is connected with a high-frequency inductive reactance, so that the high-frequency AC power supply is basically only acting on the metal mesh.

As preferably, the on-duration of described delay switch is 1s～2s.

The beneficial effect of above-mentioned first kind of technical scheme is: when this power isolation network is working as protection isolation network, at first a low-voltage monitoring system is set up between described two-layer metal net by described low-voltage circuit, when bird's When the paws grab into the mesh, the two layers of metal mesh are overlapped. At this time, the relay in the low-voltage circuit triggers and closes the delay switch, so that the high-voltage power supply is loaded on the two-layer metal mesh, so that the bird The claw delivers a short electric shock, forcing it to fly away from the isolation net. The second technical scheme adopted in the present invention is: this power isolation net comprises top net plate, and described top net plate comprises upper strata metal net and lower strata metal net; Described upper strata metal net is equidistantly arranged in parallel by conductive steel wire The structure of the lower metal mesh is the same as that of the upper metal mesh, and the conductive steel wires in the lower metal mesh and the conductive steel wires in the upper metal mesh are orthogonal to each other; there is a layer between the upper metal mesh and the lower metal mesh Insulation mesh; the two layers of metal mesh are electrically connected to two electrodes of a low-voltage power supply to form a low-voltage circuit; a relay is connected in series in the low-voltage circuit, and the relay triggers and closes a delay switch, and the delay After the switch is closed, the two ends of each conductive steel wire in the upper metal mesh are electrically connected to two electrodes of a high-voltage power supply, and each conductive steel wire in the upper layer metal mesh has the same current direction.

The beneficial effect of above-mentioned second kind of technical scheme is: when this power isolation net works as protection isolation net, at first set up a low-voltage monitoring system between described two-layer metal net by described low-voltage circuit, when bird's When the claws grab into the mesh, the two layers of metal mesh are overlapped. At this time, the relay in the low-voltage circuit triggers and closes the delay switch, so that the high-voltage power supply is loaded on both ends of the upper metal mesh. There is an attractive force between the electrified wires, which will cause the conductive steel wires in the upper metal mesh to move closer to the middle, thus causing the mesh formed by the crossing of the upper metal mesh and the lower metal mesh to converge toward the center, causing pressure on the bird's claws that extend into the mesh. sense, so that the birds actively fly away from the isolation net; since the program does not pose an electric shock threat to the claws of the birds, it can further prevent the damage to the birds.

Description of drawings

Fig. 1 is the top view schematic diagram of the top net plate of this power isolation net embodiment one.

Fig. 2 is the side view schematic diagram of the top net plate of this power isolation network embodiment one.

[0013] Fig. 3 is a schematic diagram of the electrical structure of the first embodiment of the power isolation network.

Fig. 4 is the schematic diagram of the upper strata metal mesh of this power isolation network embodiment two.

Fig. 5 is the electrical structure schematic diagram of this power isolation network embodiment two.

detailed description

Embodiment Below in conjunction with accompanying drawing and embodiment, the present invention is further described:

Embodiment one:

In the embodiment one shown in Fig. 1 ~ Fig. 3, this power isolation net comprises top net plate, and described top net plate comprises two layers of metal nets, namely upper metal net 11 and lower floor metal net 12, described A layer of insulating mesh 2 is sandwiched between the two layers of metal mesh. The two-layer metal meshes 11 and 12 are electrically connected to two electrodes of a low-voltage power supply VI as shown in FIG. 3 to form a low-voltage circuit Circlel; a relay KA is connected in series in the low-voltage circuit, and the relay KA triggers A delay switch KT is closed. After the delay switch is closed, the two layers of metal meshes 11, 12 are electrically connected to the two electrodes of a high voltage power supply V2.

Above-mentioned electric power isolation net, the metal mesh 11,12 described in each layer is formed by the mesh of close weaving, and the maximum size of described mesh is 3mm～5mm; As, in Fig. 1, described mesh If the hole is a triangular hole, then the maximum size is the length of the triangle hole. At this moment, the length of the side of the triangle hole is 3mtn～5mtn; thus human fingers cannot be stretched into the mesh, and the bird's paws can be grasped into the mesh.

Described high-voltage power supply V2 is a high-frequency alternating current power supply, and its frequency is not lower than 100KHz. According to the skin effect of high-frequency alternating current, even if the paws of the poultry are directly grasped on the two-layer metal mesh 11, 12, and the high-voltage alternating current is applied to the paws of the poultry, it will only make the surface of the paws of the poultry hot without causing them to get an electric shock , to avoid harming the birds.

In order to make described high-voltage power supply V2 basically only act on described metal mesh 11,12, as shown in Figure 3, the end string of described high-voltage power supply V2 has high-frequency inductive reactance L, makes low-voltage power supply VI place support The AC resistance of the circuit reaches a huge scale, and the high-frequency AC current passing through the low-voltage power supply VI is negligibly small.

Above-mentioned electric power isolation net, the length of time that described time-delay switch KT is turned on is 1s～2s, in this 1s～2s, enough to make birds fly away from isolation net because of paw pain.

Above-mentioned power isolation net is when working as protection isolation net, at first set up a low-voltage monitoring system between described two-layer metal mesh 11,12 by described low-voltage circuit Circlel, when the paw of flying bird grabs mesh, will The two layers of metal mesh are overlapped. At this time, the relay KA in the low-voltage circuit triggers and closes the delay switch KT, so that the high-voltage power supply V2 is loaded on the two-layer metal mesh 11, 12, so that the bird The claw delivers a short electric shock, forcing it to fly away from the isolation net.

Embodiment two:

In the embodiment two shown in Fig. 4, Fig. 5, this power isolation net comprises top net plate, and described top net plate comprises upper strata metal net 11 ' and lower strata metal net 12 '; Described upper strata metal net 11 'is formed by equidistant parallel arrangement of conductive steel wires, the structure of the lower metal mesh 12' is the same as that of the upper layer metal mesh 11', and the conductive steel wires in the lower layer metal mesh 12' and the conductive steel wires in the upper layer metal mesh 11' are mutually positive A layer of insulating mesh (not shown) is sandwiched between the upper layer metal mesh 11' and the lower layer metal mesh 12'; the two layers of metal mesh 11', 12' are electrically connected to two ends of a low-voltage power supply VI' electrodes to form a low-voltage circuit Circle2; a relay KA' is connected in series in the low-voltage circuit Circle2, and the relay KA' triggers and closes a time-delay switch KT'. After the time-delay switch KT' is closed, the upper layer Both ends of the conductive steel wires in the metal mesh 11' are electrically connected to two electrodes of a high-voltage power supply V2' as shown in FIG. 4, and the conductive steel wires in the upper metal mesh 11' have the same current direction.

When the power isolation net described in the above-mentioned embodiment two is working as a protective isolation net, at first a low-voltage monitoring system is set up between the two-layer metal net 11,12 by the described low-voltage circuit Circle2, when the paw of the bird When grabbing into the mesh, the two layers of metal mesh are overlapped. At this time, the relay KA' in the low-voltage circuit Circle2 triggers and closes the delay switch KT', so that the high-voltage power supply V2' is loaded on the upper layer of metal mesh 11' Due to the gravitational force between the parallel conducting wires in the same direction, the conductive steel wires in the upper metal mesh 11' will move closer to the middle as shown by the arrows in Figure 4, thereby causing the upper layer metal mesh 11', the lower layer The mesh formed by the crossing of the metal mesh 12' draws towards the center, which creates a sense of oppression on the bird's claws protruding into the mesh, so that the bird actively flies away from the isolation net; since this scheme does not pose an electric shock threat to the bird's claws, it can further prevent damage to the bird's claws. Injury to birds.

The above is only a preferred embodiment of the present invention, not in order to limit the present invention, all within the spirit and principles of the present invention, any modification done, equivalent replacement, improvement etc., all should be included in this within the scope of protection of the invention.

Claims (1)

1. A working method of electric power isolation net, electric power isolation net comprises top net plate, it is characterized in that: described top net plate comprises two-layer metal net (11,12), sandwiches between described two-layer metal net One layer of insulating mesh (2); the two layers of metal mesh (11, 12) are electrically connected to two electrodes of a low-voltage power supply (VI) to form a low-voltage circuit; a relay (KA ), the relay (KA) triggers and closes a delay switch (KT). After the delay switch is closed, the two layers of metal mesh (11, 12) are electrically connected to the two electrodes of a high voltage power supply (V2). Sexual connection; The metal mesh (11,12) described in each layer is connected by densely woven meshes, and the maximum size of the meshes is 3mm～5mm, so that the fingers of the human body cannot be stretched into the meshes, while the claws of birds can Grab into the mesh; The high-voltage power supply (V2) is a high-frequency AC power supply, and its frequency is not lower than 100 KHz; The working method includes: first establishing a low-voltage circuit between the two layers of metal meshes by the low-voltage circuit monitoring system, when the claws of the birds are caught in the mesh, the two layers of metal mesh are overlapped. At this time, the relay in the low-voltage circuit triggers and closes the delay switch, so that the high-voltage power supply is loaded to the two layers The metal net, so as to give a short electric shock to the bird's paw, forcing it to fly away from the isolation net; the end of the low-voltage power supply (VI) is connected with a high-frequency inductive reactance (L).