CN2932072Y

CN2932072Y - Optical fibre light used in machine cabinet

Info

Publication number: CN2932072Y
Application number: CN 200620062695
Authority: CN
Inventors: 卢景华
Original assignee: Individual
Current assignee: ABB Xiamen Switchgear Co Ltd
Priority date: 2006-08-03
Filing date: 2006-08-03
Publication date: 2007-08-08
Anticipated expiration: 2016-08-03

Abstract

The utility model discloses an optical fiber lamp for cabinets, comprising a light source box, a conductive optical fiber, an LED and a controlling circuit. The LED and the controlling circuit are installed in the light source box, and the LED is connected at the output end of the controlling circuit. The two ends of the conductive optical fiber are separately connected with an optical fiber light-received head and an optical fiber light-emitting head. The optical fiber light-received head is inserted in the light source box and corresponding to the LED and the conductive optical fiber can be freely extended outward by the optical fiber light-emitting head connected at the other end of the optical fiber. By employing the cold light source LED as the light source of cabinets, the soft and bent conductive optical fiber can guide the light to the needed position. Because the cold light source is used, the surrounding matters cannot be cauterized or damaged, and the cooling components needed by the thermal light source can be omitted. Therefore, the security of the on-off cabinet can be enhanced. Moreover, the light source box can be installed at any easily installed place of the on-off cabinet, which brings great convenience to the arrangement of the inner components of the on-off cabinet, and the entirety and air tightness of the on-off cabinet can be improved.

Description

Rack optical fiber lamp

Technical field

The utility model relates to a kind of light source, particularly relates to a kind of rack optical fiber lamp.

Background technology

At present, on the market in the switch cubicle used rack lamp adopt mostly that traditional lighting system--incandescent lamp is as light source, incandescent lamp can give out a large amount of heats in use, burn peripheral object easily, so need to be equipped with focusing structure and cooling structure, this make commonly use the rack lamp body long-pending big, overall structure is comparatively complicated, price is higher.In addition, adopting this traditional lighting system is to be directly changed into luminous energy by electric energy, light and electricity are undivided, there is certain danger in power mode, for security consideration, light source preferably is installed in the low-pressure chamber, i.e. the top of switch cubicle, but this mounting means can not well provide illumination to switch cubicle, can only be as decorative lighting.If light source is contained in the cable vault, then there be the seal and the relatively poor again defective of globality of switch cubicle.

The utility model content

The purpose of this utility model is to provide a kind of volume rack little, cheap, easy for installation optical fiber lamp.

For achieving the above object, technical solution of the present utility model is:

The utility model is a kind of rack optical fiber lamp; It is made up of light source box, conduction optical fiber, LED and control circuit; Described LED and control circuit are installed in the light source box, and LED is connected the output port of control circuit; Be connected with optical fiber respectively at the two ends of conduction optical fiber and be subjected to shaven head and optical fiber light head, optical fiber is plugged in the light source box by shaven head and is relative with LED, and terminating at the optical fiber light head of conducting on the optical fiber other end can freely stretch out by related conduction optical fiber.

Described control circuit comprises ac-dc converter circuit, constant-current control circuit, timing control circuit and pressure cooling circuit; The ac-dc converter circuit output connects constant-current control circuit and forces cooling circuit, and the output port on the constant-current control circuit can connect LED, but forces cooling circuit output port external fan; Described timing control circuit is attempted by on the output port on the constant-current control circuit break-make with control output end mouth electric current; Described ac-dc converter circuit is converted to direct current with external alternating current and flows to constant-current control circuit and force cooling circuit, and electric current changes comparatively through constant-current control circuit that constant DC provides constant electric current through its output port to LED into.

After adopting such scheme, the utlity model has following advantage:

(1) adopts the light source of cold light source LED as the rack lamp, the conduction optical fiber bent by softness is directed to the light-struck place of needs with light, owing to be cold light source, it can not produce the object of periphery and burn destruction, the required cooling component of thermal light source that can default, the security of switch cubicle improves greatly.

(2) because light source can be by soft bent conduction fiber optic conduction, light source box can be installed in any easy-on of switch cubicle place than large space, the great convenience that this brings for the layout of the internal components of switch cubicle makes the globality of switch cubicle and seal better.

(3) optical fibre illumination is a kind of lighting engineering of novelty, and the optical fiber lamp can be implemented in oil depot, mining area, high pressure etc. and forbids kindling material to be gone in the interior dangerous situation.From security standpoint, because of light and electricity separate, security is higher, so the illumination of optical fiber lamp is the desirable lighting apparatus of this type of occasion.

Below in conjunction with the drawings and specific embodiments the utility model is further described.

Description of drawings

Fig. 1 is an outline drawing of the present utility model;

Fig. 2 is the circuit block diagram of the utility model control circuit;

Fig. 3 is the circuit diagram of the utility model control circuit;

Fig. 4 is the utility model scheme of installation.

The specific embodiment

As shown in Figure 1 and Figure 2, the utility model is a kind of rack optical fiber lamp; It is made up of light source box 1, conduction optical fiber 2, LED3 and control circuit 4.

Described LED3 and control circuit 4 are installed in the light source box 1, and LED3 is connected the output port of control circuit 4; Be connected with optical fiber respectively at the two ends of conduction optical fiber 2 and be subjected to shaven head 21 and optical fiber light head 22, optical fiber is plugged in the light source box 1 by shaven head 21 and is relative with LED3, terminates at the position that optical fiber light head 22 on conduction optical fiber 2 other ends can the bent conduction optical fiber 2 of related softness freely extends out to required illumination.

Light source box 1 is furnished with binding post can directly connect power supply, wherein A1 (+)Meet AC " L " or DC "+", A2Meet AC " N " or DC "-".Conduction optical fiber 2 optical fiber are subjected to shaven head 21 and light source box 1 to screw cooperation by bolt like a cork, but the 2 softness bendings of conduction optical fiber adapt to various environment needs are installed.Light source box 1 can fixedly mount with screw, also can be installed on the DIN 35mm standard guide rail, optical fiber light head 22 can be installed in the place that needs illumination with the mode that bolt clamps, install easily, conveniently, as, light source box 1 can be installed in the low-pressure chamber of switch cubicle 10 (as shown in Figure 4), and optical fiber light head 22 be installed in other place of switch cubicle 10, realize that light and electricity separate, security is higher.

As Fig. 2, shown in Figure 3, described control circuit 4 comprises ac-dc converter circuit 41, constant-current control circuit 42, timing control circuit 43 and forces cooling circuit 44.Ac-dc converter circuit 41 outputs connect constant-current control circuit 42 and force cooling circuit 44, and the output port on the constant-current control circuit 42 can connect LED3, but force cooling circuit 44 output port external fans; The timing control circuit 43 of described time-lag action is attempted by on the output port on the constant-current control circuit 42 break-make with control output end mouth electric current.Described ac-dc converter circuit 41 is converted to direct current with external alternating current and flows to constant-current control circuit 42 and force cooling circuit 44, and electric current changes comparatively through constant-current control circuit 42 that constant DC provides constant electric current through its output port to LED3 into.After the timing control circuit that plays time-lag action arrives for 43 time delays, must deenergization, wait for being not less than 5 seconds that when sending electricity once more, lamp just can light again, and reruns time delay.

Claims

1, a kind of rack optical fiber lamp; It is characterized in that: it is made up of light source box, conduction optical fiber, LED and control circuit; Described LED and control circuit are installed in the light source box, and LED is connected the output port of control circuit; Be connected with optical fiber respectively at the two ends of conduction optical fiber and be subjected to shaven head and optical fiber light head, optical fiber is plugged in the light source box by shaven head and is relative with LED, and terminating at the optical fiber light head of conducting on the optical fiber other end can freely stretch out by related conduction optical fiber.

2, rack according to claim 1 optical fiber lamp is characterized in that: described control circuit comprises ac-dc converter circuit, constant-current control circuit, timing control circuit and pressure cooling circuit; The ac-dc converter circuit output connects constant-current control circuit and forces cooling circuit, and the output port on the constant-current control circuit can connect LED, but forces cooling circuit output port external fan; Described timing control circuit is attempted by on the output port on the constant-current control circuit break-make with control output end mouth electric current; Described ac-dc converter circuit is converted to direct current with external alternating current and flows to constant-current control circuit and force cooling circuit, and electric current changes comparatively through constant-current control circuit that constant DC provides constant electric current through its output port to LED into.