CN203233564U

CN203233564U - Led signal mechanism

Info

Publication number: CN203233564U
Application number: CN2012204588254U
Authority: CN
Inventors: 程耀仲; 隋功浩; 张奇
Original assignee: Siemens Signalling Co Ltd
Current assignee: Siemens Signalling Co Ltd
Priority date: 2012-09-10
Filing date: 2012-09-10
Publication date: 2013-10-09
Anticipated expiration: 2022-09-10

Abstract

The utility model provides a LED signal mechanism capable of providing high brightness signals and reliably realizing safety guarantee of the signal mechanism. The LED signal mechanism comprises a lens mechanism, a control unit and a light source assembly. The control module controls a main LED and an auxiliary LED to light or extinguish, and detects work states of the LED; and if faults of the main LED are detected, conversion control is carried out by lighting up the auxiliary LED. The light source assembly comprises a lighting unit formed by the main LED and the auxiliary LED connected in parallel, and also comprises optics parts. If the main LED or the auxiliary LED works normally, a power consumption circuit is started to increase line current; and if the main LED and the auxiliary LED simultaneously in failure, then the power consumption circuit is closed to reduce line current, thereby ensuring signal fault safety principle.

Description

The LED signaling gear

Technical field

The utility model relates to the LED signaling gear that use has LED, especially for the LED signaling gear of railway.

Background technology

In the past, with in the signaling gear, using had incandescent lamp as light source cell 3 at existing railway.This existing signaling gear has: be located at indoor monitoring relay 1, it is used for the operating state of supervision light source cell 3; Be located at outdoor transformer tank 2 and light source cell 3.As shown in Figure 1, can adopt railway signal transformer BX-34+JZSJC or the DZD lighting unit (meeting TB/T3202-2008) of standard to the power supply of signal element 3.Represented power supply employing DZD-3 type lighting unit in Fig. 1, monitoring relay 10 is the JZX-H18 relay of current mode.

But, above-mentioned light source cell of the prior art 3 since use be incandescent lamp as light source cell, the life-span of incandescent lamp is short, optical efficiency is low, can not realize the signaling gear of high reliability long life.

If incandescent lamp is replaced as LED, because the consumed power in the power ratio incandescent lamp circuit that the LED signaling gear consumes is little, the problem that monitoring relay 1 is picked up reliably can appear.

In documents 1, disclose a kind of method of the LED of control lighting device, wherein, be provided with power model and control module, the direct current component that offers phase line is obstructed strongly, therefore guarantee to be arranged on the normal operation of the failure current protection switch in the erection unit.In the process that information electrical network ripple produces, the illumination apparatus power supply continues to be provided with complete supply voltage, and chien shih lighting device voltage interrupts individually when very short, thereby changes brightness and the luminosity of lighting device.

Though documents 1 discloses the technical scheme of line current being controlled by control module, for the operating state that detects LED, when it breaks down, tackle and do not do any discussion.Therefore, the method for the control LED lighting device of documents 1 can not realize the safety guarantee of LED lighting device reliably.

Patent documentation 1:EP2282610A2

The utility model content

In view of this, the utility model proposes a kind of LED signaling gear, high-brightness signal can be provided, and can realize the safety guarantee of signaling gear reliably.

The utility model first aspect provides a kind of LED signaling gear, it is characterized in that, comprising: light source assembly, and it has main LED and secondary LED in parallel; The power consumption circuit, it connects described main LED and described secondary LED; Control module, it connects described main LED and secondary LED, and connects described power consumption circuit.

The utility model second aspect, on the basis of first aspect, described main LED and described secondary LED opens circuit simultaneously or the situation of short trouble under, close described power consumption circuit, reduce described line current.

From above-mentioned aspect as can be seen, because the utility model is provided with power consumption circuit or control module in LED signal controlling mechanism, break down and when converting secondary LED to it being lighted, starting power consumes circuit does not make line current reduce, and monitoring relay is picked up reliably at main LED.In addition since main LED and secondary LED is short-circuited simultaneously or the situation of open circuit fault under, close the power consumption circuit and reduce described line current, monitoring relay is fallen reliably.Therefore, when improving signaling gear brightness, can realize the safety guarantee of LED signaling gear reliably.

Description of drawings

To make clearer above-mentioned and other feature and advantage of the present utility model of those of ordinary skill in the art by describe preferred embodiment of the present utility model in detail with reference to accompanying drawing below, in the accompanying drawing:

Fig. 1 is the work block diagram of existing signaling gear.

Fig. 2 is the work block diagram of the LED signaling gear of the utility model execution mode.

Fig. 3 is the circuital current control block diagram of the utility model execution mode.

Embodiment

For making the purpose of this utility model, technical scheme and advantage clearer, by the following examples the utility model is further described.

Can use railway signal transformer BX-34+JZSJC or the DZD lighting unit (meeting TB/T3202-2008) of standard that the LED signaling gear 30 of present embodiment is powered, its operation principle as shown in Figure 2.In Fig. 2, adopt DZD-3 type lighting unit to power, 10 for monitoring relay is the JZX-H18 relay, and 20 is transformer tank, and 30 is the LED signaling gear.

In the LED of present embodiment signaling gear 30, be provided with: main LED31; Secondary LED32, itself and main LED31 are connected in parallel; Power consumption circuit 33, under the situation of main LED31 or secondary LED32 operate as normal, starting power consumes circuit 33, increases line current; Under the situation that main LED31 and secondary LED32 break down simultaneously, close power consumption circuit 33, reduce line current; Control module 34, this control module 34 anti-EMC disturb, and the protection thunder and lightning is broken, and controls the operating state that main LED31 and secondary LED32 lighted or extinguished and detected LED.

Why power consumption circuit 33 be set be because, using in signaling gear at existing railway has incandescent lamp, about 25 watts of the consumed power of incandescent lamp, and the consumed power of LED is less, at this moment, in order to make monitoring relay 10 work, having increased the power consumption circuit at LED signaling gear 30 is power consumption circuit 33.

Next, the action to LED signaling gear 30 describes.

The normal working voltage of module is AC12V ± 10%, and in the normal working voltage scope, monitoring relay 10 picks up reliably, makes the chip light emitting intensity of main LED31 reach standard-required and make main LED31 work.When the LED operate as normal, starting power consumes circuit 33, and line current is increased, and monitoring relay 10 is picked up reliably and works, when main LED31 and and secondary LED32 situation about breaking down simultaneously under, close power consumption circuit 33, line current is reduced.

If main LED31 is short-circuited or open circuit fault, then detect this fault by control module 343 and carry out switching controls and automatic output alarm in the mode that secondary LED32 is lighted, at this moment, power consumption circuit 33 continuous firings, monitoring relay 10 continues to pick up reliably.

In addition, take place simultaneously under the situation of open fault at main LED31 and secondary LED32, control module 34 detects this fault and power consumption circuit 33 closed makes line current reduce, and output alarm automatically, and monitoring relay 10 falls reliably.

In addition, take place simultaneously under the situation of open circuit fault at main LED31 and secondary LED32, control module 34 detects this fault and power consumption circuit 33 closed makes line current reduce, and output alarm automatically, and monitoring relay 10 falls reliably.

The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.

Claims

1. a LED signaling gear is characterized in that, comprising:

Light source assembly, it has main LED and secondary LED in parallel;

The power consumption circuit connects described main LED and described secondary LED;

Control module, it connects described main LED and secondary LED, and connects described power consumption circuit.

2. LED signaling gear according to claim 1 is characterized in that,

This control module is configured to: detect that described main LED and described secondary LED open circuit simultaneously or the situation of short trouble under, close described power consumption circuit.