CN219436648U - Lightning protector for sound equipment - Google Patents
Lightning protector for sound equipment Download PDFInfo
- Publication number
- CN219436648U CN219436648U CN202222996278.1U CN202222996278U CN219436648U CN 219436648 U CN219436648 U CN 219436648U CN 202222996278 U CN202222996278 U CN 202222996278U CN 219436648 U CN219436648 U CN 219436648U
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- CN
- China
- Prior art keywords
- lightning arrester
- lightning
- control circuit
- current contactor
- voltage detection
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Abstract
The lightning protector for the sound equipment comprises an alternating current contactor, a high-voltage detection control circuit board and a lightning arrester, wherein the alternating current contactor is used for connecting an indoor power amplifier with an outdoor sound box in series, the high-voltage detection control circuit board is used for controlling the switch of the alternating current contactor, and the outdoor sound box can discharge to the ground through the lightning arrester; the alternating-current contactor, the high-voltage detection control circuit board and the lightning arrester are arranged in the shell; the lightning arrester comprises a plurality of zinc oxide lightning arresters; the two ends of the zinc oxide lightning arrester are supported by insulating plates which are vertically arranged in the shell. The principle of the utility model is as follows: after the protector equipment is electrified, a relay K1 in the circuit is closed, an alternating-current contactor is controlled to be connected, and the lightning arrester works normally; when the high voltage detection control circuit board detects that the serial route of the outdoor sound box inputs high voltage, a protection action is generated, the relay K1 is disconnected, the AC contactor cuts off the connection between the outdoor sound box and the indoor power amplifier, and the ground discharge is realized through the lightning arrester, so that the lightning protection of sound equipment is realized.
Description
Technical Field
The utility model relates to the field of sound equipment, in particular to a lightning arrester protector for sound equipment.
Background
Lightning protection is a very hot topic, relates to various fields of national life, and along with the popularization of outdoor sound boxes, the demand of lightning protection products of sound equipment is increased at a high speed, but technical staff engaged in the sound industry at the present stage are not familiar with strong electricity, and the system introduces little lightning protection technical data with cold knowledge of lightning protection subject, so that the development of a lightning protection protector for sound equipment with simple and easy use is urgent.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a lightning arrester for sound equipment, which realizes lightning protection for sound equipment.
In order to solve the technical problems, the technical scheme of the utility model is as follows: the utility model provides an audio equipment arrester protector, is including the alternating current contactor that is used for series connection indoor power amplifier and outdoor audio amplifier, the high voltage detection control circuit board and the lightning arrester that are used for controlling alternating current contactor switch, outdoor audio amplifier can discharge to ground through lightning arrester. The principle of the utility model is as follows: after the protector equipment is electrified, a relay K1 in the circuit is closed, an alternating-current contactor is controlled to be connected, and the lightning arrester works normally; when the high voltage detection control circuit board detects that the serial route of the outdoor sound box inputs high voltage, a protection action is generated, the relay K1 is disconnected, the AC contactor cuts off the connection between the outdoor sound box and the indoor power amplifier, and the ground discharge is realized through the lightning arrester, so that the lightning protection of sound equipment is realized.
As an improvement, the alternating current contactor, the high-voltage detection control circuit board and the lightning arrester are arranged in the shell.
As an improvement, the lightning arrester comprises a plurality of zinc oxide lightning arresters.
As an improvement, both ends of the zinc oxide arrester are supported by insulating plates standing in the housing.
Compared with the prior art, the utility model has the beneficial effects that:
through high voltage detection and protection action control circuit system, use alternating current contactor to cut off the circuit, use zinc oxide arrester to discharge, realized the discharge protection effect of high voltage detection and circuit cutting off.
Drawings
Fig. 1 is a block diagram of a novel circuit.
Fig. 2 is a schematic diagram of the novel structure used in the present utility model.
Fig. 3 is a schematic circuit diagram of a high voltage detection control circuit board.
Detailed Description
The utility model is further described below with reference to the drawings.
As shown in fig. 1, an audio equipment lightning protection device comprises an ac contactor 3 for connecting an indoor power amplifier 1 and an outdoor sound box 2 in series, a high-voltage detection control circuit board 4 for controlling the switching of the ac contactor 3, and a lightning arrester, wherein the outdoor sound box 2 can discharge to the ground through the lightning arrester. The alternating current contactor 3, the high voltage detection control circuit board 4 and the lightning arrester are arranged in the shell 6 to form a single device.
As shown in fig. 2, the lightning arrester comprises two rows of zinc oxide lightning arresters 5 which are staggered, two ends of each zinc oxide lightning arrester 5 are supported by an insulating plate which is erected in the shell, and the zinc oxide lightning arresters 5 are connected by binding posts which can be arranged at one side. The zinc oxide lightning arrester 5 is mainly assembled by zinc oxide resistor sheets, and has small nonlinear coefficient, so that the zinc oxide lightning arrester has good nonlinear volt-ampere characteristic; the zinc oxide lightning arrester 5 has extremely large resistance under normal working voltage, and presents an insulating state; under the action of lightning overvoltage, the lightning arrester is in a low resistance state, lightning current is discharged, residual voltage of electrical equipment connected in parallel with the lightning arrester is limited below a safety value of the equipment, and after harmful overvoltage disappears, the lightning arrester rapidly recovers high resistance to be in an insulating state, so that insulation of the equipment is effectively protected from being damaged by the overvoltage; the characteristics are as follows: the device has the characteristics of simple structure, quick action response, good protection performance, large through-current capacity, no follow current, capability of tolerating multiple lightning overvoltage or operation overvoltage and the like.
As shown in fig. 3, the high voltage detection control circuit board 4 includes a high voltage detection and protection action control circuit, and its working principle is as follows: the circuit is electrified to work, a relay K1 in the circuit is closed, an alternating current contactor 3 is controlled to be connected, and a lightning arrester works normally; when the serial route of the outdoor sound is detected to input high voltage, the voltage is attenuated by the multiple resistors and then converted into light signals through neon bulbs, the light-sensitive resistor in the control circuit receives the light signals, the circuit current changes and generates protection action, the relay K1 is disconnected, the AC contactor 3 cuts off the connection between the outdoor sound box 2 and the indoor power amplifier 1, and the lightning protection is realized through the discharge of the zinc oxide lightning arrester 5. The characteristics are as follows: the circuit has simple components, pure electronic components and parts control, no operating system, strong reliability, easy maintenance and low manufacturing cost.
The ac contactor 3 is used as a component of the lightning arrester for mainly realizing protection action, and its working principle is as follows: the connection between the outdoor sound box 2 and the indoor power amplifier 1 is cut off through the alternating current contactor 3, so that the shielding insulation protection sound equipment is particularly required to be matched with the zinc oxide lightning arrester 5 for use, and the high-voltage detection control circuit controls the opening/closing of the zinc oxide lightning arrester. The characteristics are as follows: the device has the advantages of simple action structure, low power consumption, long service life, high safety and reliability, convenient maintenance, low price, strong circuit cutting and arc extinguishing.
The principle of the utility model is as follows: after the protector equipment is electrified, a relay K1 in the circuit is closed, an alternating-current contactor 3 is controlled to be connected, and the lightning arrester works normally; when the high voltage detection control circuit board 4 detects that the serial route of the outdoor sound box 2 inputs high voltage, a protection action is generated, the relay K1 is disconnected, the AC contactor 3 cuts off the connection between the outdoor sound box 2 and the indoor power amplifier 1, and the ground discharge is realized through the lightning arrester, so that the lightning protection of the sound equipment is realized.
Claims (1)
1. A lightning protector for sound equipment is characterized in that: the outdoor sound box comprises an alternating current contactor, a high-voltage detection control circuit board and a lightning arrester, wherein the alternating current contactor is used for connecting an indoor power amplifier with an outdoor sound box in series, the high-voltage detection control circuit board is used for controlling a switch of the alternating current contactor, and the outdoor sound box can discharge to the ground through the lightning arrester;
the alternating-current contactor, the high-voltage detection control circuit board and the lightning arrester are arranged in the shell;
the lightning arrester comprises a plurality of zinc oxide lightning arresters;
the two ends of the zinc oxide lightning arrester are supported by insulating plates which are vertically arranged in the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222996278.1U CN219436648U (en) | 2022-11-10 | 2022-11-10 | Lightning protector for sound equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222996278.1U CN219436648U (en) | 2022-11-10 | 2022-11-10 | Lightning protector for sound equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219436648U true CN219436648U (en) | 2023-07-28 |
Family
ID=87331752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222996278.1U Active CN219436648U (en) | 2022-11-10 | 2022-11-10 | Lightning protector for sound equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219436648U (en) |
-
2022
- 2022-11-10 CN CN202222996278.1U patent/CN219436648U/en active Active
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