CN200997718Y

CN200997718Y - Triggering electronic ballast controlling system of fluorescent light in bus

Info

Publication number: CN200997718Y
Application number: CNU2006201709270U
Authority: CN
Inventors: 项彬; 冯还红; 陈国强; 卢建平; 王立新
Original assignee: Xiamen King Long United Automotive Industry Co Ltd
Current assignee: Xiamen King Long United Automotive Industry Co Ltd
Priority date: 2006-12-13
Filing date: 2006-12-13
Publication date: 2007-12-26
Anticipated expiration: 2016-12-13

Abstract

A bus fluorescent lamp trigging electronic ballast control system is composed of a bus fluorescent lamp unit, which is connected in series with the positive pole and the negative pole of a power source, and is characterized in that each fluorescent tube in the bus fluorescent lamp unit is connected in series with a trigging DC electronic ballast, the trigging signal lines of all the trigging electronic ballasts are connected in parallel with the bus of a bus controller local network, and a trigging signal control switch on an instrument desk is connected in parallel with the bus of a bus controller local network.

Description

Passenger vehicle fluorescent lamp trigger-type electronic ballast control system

Technical field:

The utility model belongs to the Lighting Control Assembly of passenger vehicle fluorescent lamp.

Background technology:

Room light light fixture on the passenger vehicle adopted the bulb illumination in the past, and heating is big, illuminating effect is undesirable, and along with the performance improvement of car direct current sub-ballast, be greatly improved useful life afterwards, generally adopt fluorescent lighting, its lit a lamp Inductive ballast and electric ballast dual mode.

In recent years, owing to energy-efficient, comfortable, the no stroboscopic of electric ballast, noiselessness, safe, economic advantage are progressively substituting Inductive ballast.

Traditional lighting control is that switch by controlling direct fluorescent tube series connection is to realize bright, the control of going out to fluorescent lamp.See accompanying drawing 1.

Specific to the passenger vehicle illuminator, this control mode is that switch is installed on instrument desk, and switch on and off can be controlled opening with disconnected of fluorescent tube.But this control mode has shortcoming: along with the increase of fluorescent tube, often adopt several lamps of a switch control, the electric current that passes through on the switch just increases.Because the voltage that uses on the car is 24 volts grades of direct current low-voltage DC, the electric current that passes through on the switch during identical power of lamp tube is 10 times of home switch, adds the influence of surge current, and its current-on contact is very big, can make switch contact ablate prematurely, damage.Propose higher requirement to the switch on the instrument desk like this, want thick, also will avoid because high-current switch produces spark and additional protection device etc. such as lead-in wire.

Summary of the invention:

The utility model provides a kind of passenger vehicle fluorescent lamp trigger-type electronic ballast control system, and its purpose is to overcome the shortcoming of prior art, provides a kind of to the safer control system more flexibly of passenger vehicle fluorescent lamp.

For reaching above-mentioned purpose, the utility model adopts following technical scheme:

Passenger vehicle fluorescent lamp trigger-type electronic ballast control system, comprise passenger vehicle fluorescent lamp group, passenger vehicle fluorescent lamp group is parallel on the positive pole and negative pole of power supply, it is characterized in that: each fluorescent tube in the passenger vehicle fluorescent lamp group all is in series with a trigger-type dc electronic ballast, the line trigger signal of each trigger-type electric ballast is parallel on the passenger vehicle controller area network bus, and the triggering signal control switch on the instrument desk also is parallel to the passenger vehicle controller area network bus.

Adopt the advantage of technique scheme to be: each ballast all has a line trigger signal, and the break-make of control line trigger signal just can be controlled the break-make of fluorescent tube; Triggering signal control switch control line trigger signal on the instrument desk, because the trigger current of each ballast is less than 25mA, so the current requirements to the instrument desk switch is not high, contact current is little, the anodal line that triggers can be used thinner line, not high to the holding wire beam request, can be directly connected on the CAN bus; The function of dc electronic ballast has low voltage starting, overvoltage protection, pipeline start up by preheating, functions such as no lamp protection before keeping.

Description of drawings:

Fig. 1 is the prior art schematic diagram

Fig. 2 is the utility model schematic diagram;

Embodiment:

Below in conjunction with drawings and Examples the utility model is described in further detail:

As shown in Figure 2, present embodiment comprises by 5 pipe fluorescent lamp (monolateral first lamp, odd number lamps 1, even number of lamps 1, odd number lamp 2, even number of lamps 2) the passenger vehicle fluorescent lamp group formed, passenger vehicle fluorescent lamp group is parallel on the positive pole and negative pole of power supply, and cathode power supply line and anode power cord are 2.5 square millimeters lead.Each fluorescent tube in the passenger vehicle fluorescent lamp group all is in series with a trigger-type dc electronic ballast, the line trigger signal of each trigger-type electric ballast is parallel to passenger vehicle controller area network bus (Controller Area Network, common name CAN bus) on, triggering signal control switch on the instrument desk has 3, also is parallel to the CAN bus.The triggering signal that triggering signal control switch 1 sends opens and closes monolateral first lamp by CAN bus transfer and the trigger-type dc electronic ballast of controlling monolateral first lamp, the triggering signal that triggering signal control switch 2 sends opens and closes odd number lamp 1, odd number lamp 2 by CAN bus transfer and the trigger-type dc electronic ballast of controlling odd number lamp 1, odd number lamp 2, and the triggering signal that triggering signal control switch 3 sends opens and closes even number of lamps 1, even number of lamps 2 by CAN bus transfer and the trigger-type dc electronic ballast of controlling even number of lamps 1, even number of lamps 2.

In other embodiments, the lamp of different small cup numbers can be arranged and wish different controlling schemes, only need different triggering signal control switchs to be set and to be connected to the CAN bus at instrument desk, the line trigger signal of the trigger-type electric ballast of each fluorescent lamp of passenger vehicle fluorescent lamp group is parallel on the CAN bus, and the triggering signal condition that each trigger-type electric ballast is set gets final product with corresponding triggering signal control switch.

Claims

1, passenger vehicle fluorescent lamp trigger-type electronic ballast control system, comprise passenger vehicle fluorescent lamp group, passenger vehicle fluorescent lamp group is parallel on the positive pole and negative pole of power supply, it is characterized in that: each fluorescent tube in the passenger vehicle fluorescent lamp group all is in series with a trigger-type dc electronic ballast, the line trigger signal of each trigger-type electric ballast is parallel on the passenger vehicle controller area network bus, and the triggering signal control switch on the instrument desk also is parallel to the passenger vehicle controller area network bus.