CN211450745U

CN211450745U - LED alternating current signal indicator lamp capable of resisting line induction

Info

Publication number: CN211450745U
Application number: CN202020266817.4U
Authority: CN
Inventors: 李立平
Original assignee: Tianjin Botai Automation Equipment Co ltd
Current assignee: Tianjin Botai Automation Equipment Co ltd
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2020-09-08
Anticipated expiration: 2030-03-06

Abstract

The utility model discloses a LED alternating current signal pilot lamp of anti circuit response. It includes shell, lock nut, lamp shade, binding post, inner circuit and LED subassembly shell internally mounted has the circuit board, is the inner circuit on the circuit board, and shell one end is provided with the lamp shade, and the lamp shade inboard is provided with the lock nut with panel locking, and the shell outer end sets up binding post, and binding post is connected with the inner circuit electricity, and the return circuit is constituteed with the LED subassembly to the inner circuit, and the LED subassembly sets up in the lamp shade. The utility model has reasonable structural design and convenient and reliable operation, and avoids the possibility of misjudgment of the operating state of the equipment caused by the slightly bright state of the signal indicator lamp of the operator; the cost increase and reliability reduction caused by the fact that a direct current indicator lamp must be adopted and a direct current power supply is installed in a simple control circuit to overcome the problem of slight brightness are avoided.

Description

LED alternating current signal indicator lamp capable of resisting line induction

Technical Field

The utility model relates to a LED signal indicator lamp, concretely relates to LED alternating current signal indicator lamp of anti circuit response.

Background

The LED signal indicator lamp has the outstanding advantages of long service life, rich colors, energy conservation, low heat generation and the like, and is widely applied to electrical equipment and automatic systems instead of incandescent lamps and neon tubes.

For the LED signal indicator lamp of the AC220V power supply, in practical use, when the external cable exceeds a certain length, the LED signal indicator lamp can be slightly lightened even if the signal source is not in a switched-on state, and the clear indication of the state is influenced. This phenomenon is known to electricians as "induced current" and has been common practice; for the occasion with higher requirement, the design of the direct current signal indicating lamp circuit has to be more complicated to overcome the problem.

The complete circuit of the signal indicator light of the AC220V power supply consists of an alternating current power frequency power supply P, LED indicator light L, a signal source (such as a switch, a relay contact and the like) K, an internal lead and an external cable. As shown in fig. 1 (C is the line-to-line capacitance and D is the cable length).

This phenomenon is not "inductive" but rather leakage, but rather leakage of alternating current due to the cable being long enough to cause the line-to-line capacitance C to be large enough. The LED indicating lamp component has low voltage drop and small working current, so that the tiny leakage current is enough to make the LED generate tiny brightness.

To sum up, the utility model designs a can overcome LED signal indicator lamp of the little light problem AC220V power.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

An object of the utility model is to provide an anti line response's LED alternating current signal pilot lamp to solve the problem that proposes among the above-mentioned background art.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an anti line response's LED alternating current signal pilot lamp, includes shell, lock nut, lamp shade, binding post, internal circuit and LED subassembly shell internally mounted has the circuit board, is the internal circuit on the circuit board, and shell one end is provided with the lamp shade, and the lamp shade inboard is provided with the lock nut with panel locking, and the shell outer end sets up binding post, and binding post is connected with the internal circuit electricity, and the internal circuit constitutes the return circuit with the LED subassembly, and the LED subassembly sets up in the lamp shade.

Preferably, the shell is a hollow injection molding shell.

Preferably, the connecting terminal is connected with a power supply.

Preferably, the lampshade is a translucent filtering lampshade.

Preferably, the LED components adopt LEDs with different light emitting colors.

The utility model discloses outward appearance, mounting dimension and mounting means are the same with the signal lamp AD series each model standard of mainstream.

The utility model discloses a principle is the obvious difference of electric current, voltage parameter in the circuit under utilizing the normal switch-on of signal source and cable electric capacity electric leakage two kinds of states, adopts electronic component to constitute dedicated circuit. The LED circuit is closed in a lower voltage range when absorbing a tiny current, and is automatically switched on in a normal voltage range.

(III) advantageous effects

Compared with the prior art, after the technical scheme is adopted, the utility model discloses beneficial effect does:

1. adopt the utility model discloses an pilot lamp has avoided operating personnel signal indicator light bright state to cause the possibility of erroneous judgement to equipment running state.

2. Adopt the utility model discloses an indicator lamp has avoided in simple control circuit for overcoming the little bright problem and must adopt direct current pilot lamp and install the cost-push that direct current power supply brought and the reduction of reliability.

Drawings

FIG. 1 is a circuit diagram of a signal indicator light for an AC220V power supply;

fig. 2 is an external structural view of the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

description of reference numerals:

1. a housing; 2. locking the nut; 3. a lamp shade; 4. a wiring terminal; 5. an internal circuit; 6. an LED assembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 2-3, the present invention provides an embodiment: the utility model provides a LED alternating current signal pilot lamp of anti line response, which comprises a housing 1, lock nut 2, lamp shade 3, binding post 4, internal circuit 5 and

LED subassembly

6, 1 internally mounted of shell has the circuit board, be internal circuit 5 on the circuit board, 1 one end of shell is provided with

lamp shade

3, 3 inboards of lamp shade are provided with panel locking's

lock nut

2, 1 outer end of shell sets up binding post 4, binding post 4 is connected with internal circuit 5 electricity, internal circuit 5 constitutes the return circuit with LED subassembly 6, LED subassembly 6 sets up in lamp shade 3.

The shell 1 of the embodiment is made into a hollow shell by adopting an engineering plastic injection molding process and is used for installing a circuit board inside and fixing the circuit board with the outside; the locking nut 2 is used for locking the panel during installation; the lampshade 3 is semitransparent filtering light and uniformly projects the irradiation light of the LED on the lampshade; the wiring terminal 4 is used for connecting a power supply; the internal circuit 5 realizes a design function; the LED assembly 6 may employ different light emission colors.

The enclosure 1 of the present embodiment includes different shapes, different colors, and different sizes of a circle or a square, and the indicator light can be connected to power supplies of different voltage levels, such as AC110V, AC220V, and AC 3800V. The appearance, the installation size and the installation mode of the signal lamp AD serial communication system are the same as the standards of various types of signal lamp AD series in the mainstream; the obvious difference of current and voltage of a circuit under two states of normal connection of a signal source and electric leakage of a cable capacitor is utilized; can absorb micro current; the LED circuit is turned off in the lower voltage range and turned on in the normal voltage range.

The embodiment improves the LED signal indicator lamp of the existing AC220V power supply, has reasonable structural design and convenient and reliable operation, and avoids the possibility of misjudgment of the operating state of the equipment caused by the slightly bright state of the signal indicator lamp of an operator; the cost increase and reliability reduction caused by the fact that a direct current indicator lamp must be adopted and a direct current power supply is installed in a simple control circuit to overcome the problem of slight brightness are avoided.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an anti line response's LED alternating current signal pilot lamp, a serial communication port, including shell (1), lock nut (2), lamp shade (3), binding post (4), internal circuit (5) and LED subassembly (6), shell (1) internally mounted has the circuit board, be internal circuit (5) on the circuit board, shell (1) one end is provided with lamp shade (3), lamp shade (3) inboard is provided with lock nut (2) with panel locking, shell (1) outer end sets up binding post (4), binding post (4) are connected with internal circuit (5) electricity, internal circuit (5) and LED subassembly (6) constitute the return circuit, LED subassembly (6) set up in lamp shade (3).

2. The line induction resistant LED alternating current signal indicator lamp is characterized in that the shell (1) is a hollow injection molding shell.

3. The line induction resistant LED alternating current signal indicator lamp as claimed in claim 1, wherein the wiring terminal (4) is connected with a power supply.

4. The line induction resistant LED alternating current signal indicating lamp as claimed in claim 1, wherein the lampshade (3) is a translucent filter lampshade.

5. The line induction resistant LED alternating current signal indicator lamp as claimed in claim 1, characterized in that the LED components (6) adopt LEDs with different light emitting colors.