Anti-interference protection device

A technology of a protection device and a signal receiving device, applied in the field of electric power, can solve problems such as broken relays, and achieve the effects of protecting circuit safety, reducing manual maintenance, and improving equipment efficiency

CN109449048APending Publication Date: 2019-03-08SUZHOU RS TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2019-03-08

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Abstract

The invention discloses an anti-interference protection device. The anti-interference protection device comprises a power supply, a sensor, a relay and a signal receiving device, which are sequentially connected electrically; the relay comprises a shell, an upper cover plate, a relay body, a base and multiple connecting columns; the upper cover plate is rotatably connected onto the shell; the relay body is arranged in the shell; the base is arranged at the bottom of the shell; the multiple connecting columns are connected between the shell and the base; the connecting columns are made of a polystyrene material; the relay body comprises an electric shock reed; and a metal wire is arranged among the connecting columns and the electric shock reed. According to the anti-interference protectiondevice in the invention, the relay is introduced into the signal receiving circuit; therefore, interference of external noise on equipment signals can be effectively shielded; the equipment running stability is improved; artificial maintenance is reduced; the equipment efficiency is increased; when a relay circuit in the invention is short-circuited, the relay can be popped up from the base, andseparated from the connecting columns; the circuit is disconnected; and thus, the use security of a user is ensured while the fact that the relay cannot be broken is ensured.
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Description

technical field

[0001] The invention relates to the field of electric power technology, in particular to an anti-interference protection device. Background technique

[0002] Existing anti-interference technologies include line wrapping tinfoil, aluminum foil, shielding mesh, magnetic ring, etc. These methods have a certain effect on the interference transmitted by the external environment, but they are also ineffective when the external noise is very bad. The relay can be introduced into the circuit to realize the anti-interference function, and the circuit is controlled by the relay to control the reception of the signal to shield the interference signal.

[0003] Relays are generally composed of iron core, coil, armature, contact reed and so on. As long as a certain voltage is applied to both ends of the coil, a certain current will flow through the coil, thereby generating an electromagnetic effect, and the armature will overcome the pulling force of the return spring a...

Examples

Embodiment Construction

[0034] The present invention will be further described in detail below in conjunction with the embodiments, so that those skilled in the art can implement it with reference to the description.

[0035] It should be understood that terms such as "having", "comprising" and "including" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0036] Such as Figure 1-7 As shown, an anti-interference protection device in this embodiment includes: a power supply, a sensor, a relay and a signal receiving device that are electrically connected in sequence.

[0037] The relay includes a case 1, an upper cover 2 rotatably connected to the case 1, a relay body 6 disposed inside the case 1, a base 3 disposed at the bottom of the case 1, and a plurality of connecting columns connected between the case 1 and the base 3 4. The relay body 6 includes an electric shock reed, a metal wire is provided between the connecting column 4 and the con...