CN205938605U - Ball bubble light source - Google Patents

Abstract

The utility model discloses a ball bubble light source, its technical essential is including aluminium base board, the printing has luminous circuit on the aluminium base board, luminous circuit includes anodal contact, negative contact and circuit connection line, go out many parallel branch through the circuit connection line connection between anodal contact and the negative contact, all be provided with the LED chip on every parallel branch, it has PTC thermistor all to establish ties on every parallel branch. The utility model provides a parallel branch has PTC thermistor's ball bubble light source last all the series connection, still has the LED chip of other circuits in the time of can guaranteeing a LED chip damage, and the confession normal lighting need, if parallel branch opens circuit all the way, remaining parallel branch can too not generate heat because the electric current is too big yet simultaneously, prolongs the life of LED lamp.

Description

Bulb lamp light source

Technical field

This utility model is related to a kind of LED light source, and in particular it is related to a kind of bulb lamp light source.

Background technology

Light emitting diode (LightEmitting Diode, LED), is a kind of semiconductor subassembly.It is used as at the beginning indicating more Lamp, display light-emitting diode panel etc.；With the appearance of white light LEDs, used also as illumination.LED is referred to as forth generation lighting source Or green light source, there is the features such as energy-saving and environmental protection, life-span length, small volume, be widely used in various instructions, display, decoration, the back of the body The fields such as light source, general lighting and urban landscape.

Bulb lamp light source is sequentially connected in series by each LED chip, and both sides are connected to cathode contact by circuit connecting wire respectively It is energized with cathode contact, but a LED chip of this kind of bulb lamp light source is damaged to may result in whole light source and be in and puts out The state of going out is inconvenient, and for above-mentioned inconvenience, prior art is improved, and multiple LED chips is assigned as multigroup, multigroup LED Chip is connected in parallel it is ensured that still there being the LED chip normal power-up of All other routes when a LED chip damages, it is to avoid no Necessary trouble, but this kind of bulb lamp light source there is also an issue, and in one group of LED chip open circuit, and other organize LED chip When keeping regular path, that several groups electric current of path will increase, and voltage and resistance do not become, according to Q=I^2*R Formula, can learn and lack a road parallel branch, and remaining parallel branch is just easier to generate heat, and makes the service life of LED significantly Reduce.

Utility model content

For the deficiencies in the prior art, this utility model provides a kind of light source parallel connection and has the bulb lamp of overheat protector Light source.

For achieving the above object, this utility model provides following technical scheme：Including aluminium base, described aluminium base prints It is brushed with illuminating circuit, described illuminating circuit includes cathode contact, cathode contact and circuit connecting wire, described cathode contact and negative pole Connect a plurality of parallel branch by circuit connecting wire between contact, described every parallel branch is provided with LED chip, institute State and PTC thermistor is all in series with every parallel branch.

By technique scheme, light source is branched in multiple parallel lines it is ensured that when a LED chip damages Still have the LED chip normal power-up of All other routes, for illumination need, it is to avoid unnecessary trouble, and maintenance and inspection when Wait and also only need to check the circuit in breaking Na mono- tunnel parallel branch and LED chip, save a large amount of reviews time, maintenance is more Plus it is convenient；PTC thermistor in the parallel branch of each road is used for protecting the LED chip in this parallel branch it is ensured that having simultaneously When connection branch circuit break, remaining parallel branch also too will not be generated heat because electric current is excessive, extends the use longevity of LED Life.

Preferably, described PTC thermistor is series at the closing at cathode contact of every parallel branch.

By technique scheme, all of PTC thermistor is arranged in one piece of region of whole circuit, makes circuit More neat, produce and maintenance overhaul is convenient.

Preferably, described aluminium base is circle, equidistantly offers 6 arc aluminium base installation positions, institute in circular periphery State circle centre position and offer aluminium base centre bore.

By technique scheme, aluminium base installation position and centre bore can help aluminium base is quickly assembled on lamp socket.

Preferably, described parallel branch is provided with 2,4,6 or 8, and every two parallel branches constitute one Circular luminous circle with aluminium base centre bore as the center of circle.

By technique scheme, need according to specifically lighting and the specification size of bulb lamp light source determines that setting is how many Bar parallel branch, circular luminous circle is conducive to intensity of illumination distribution uniform.

Preferably, described parallel branch is provided with lamp body installation position and pin spliced eye, described lamp body installation position is located at Between pin spliced eye, described LED chip is installed at lamp body installation position.

By technique scheme, LED chip is arranged on lamp body installation position, and the pin of LED chip is plugged in pin and inserts Connect and access in illuminating circuit at hole, easy for installation.

Brief description

Fig. 1 is the schematic diagram of this utility model bulb lamp light source；

Fig. 2 is the circuit theory schematic diagram of this utility model embodiment.

Reference：1st, aluminium base；2nd, cathode contact；3rd, cathode contact；4th, circuit connecting wire；5th, parallel branch；6th, arc Shape aluminium base installation position；7th, aluminium base centre bore；8th, LED chip；10th, PTC thermistor；11st, pin spliced eye；12nd, lamp body Installation position.

Specific embodiment

By Fig. 1 to Fig. 2, this utility model bulb lamp light source is further described.

Including aluminium base 1, aluminium base 1 is circuit substrate of the present utility model to bulb lamp light source of the present utility model, It is printed with illuminating circuit, described illuminating circuit includes cathode contact 2, cathode contact 3 and circuit connecting wire 4 on described aluminium base 1, It is connected a plurality of parallel branch 5 by circuit connecting wire 4 between described cathode contact 2 and cathode contact 3, described every parallel connection is propped up LED chip 8 is provided with 5 tunnels, described every parallel branch 5 is all in series with PTC thermistor 10, in parallel of Dang You mono- tunnel During 5 open circuit of road, the electric current in remaining parallel branch 5 can increase, and the PTC thermistor 10 in the parallel branch of place is because electricity simultaneously Stream increases resistance and also correspondingly increases, and according to formula I=U/R, because the total voltage of every road parallel branch is constant, and resistance increases, So the rising of this temperature with PTC thermistor 10 for road electric current and reduce, be the work that each road parallel branch plays current limliting With, it is to avoid LED chip produces substantial amounts of thermal conductivity and causes service life to substantially reduce because electric current is too high.

Preferably, described PTC thermistor 10 is series at the closing at cathode contact 3 of every parallel branch 5.

Preferably, described aluminium base 1 is circle, equidistantly offers 6 arc aluminium base installation positions 6 in circular periphery, Described circle centre position offers aluminium base centre bore 7.

Preferably, described parallel branch 5 is provided with 2,4,6 or 8, and the present embodiment is propped up from 4 parallel connections Road, and every two parallel connection 5 branch roads constitute a circular luminous circle with aluminium base centre bore 7 as the center of circle.

Preferably, described parallel branch is provided with lamp body installation position 12 and pin spliced eye 11, lamp body installation position 12 He Pin spliced eye 11 circumferentially disposed on aluminium base 1, described lamp body installation position 12 be located at pin spliced eye 11 between, described LED Chip 8 is installed at lamp body installation position 12.

The above is only preferred implementation of the present utility model, and protection domain of the present utility model is not limited merely to Above-described embodiment, all technical schemes belonging under this utility model thinking belong to protection domain of the present utility model.Should refer to Go out, for those skilled in the art, some improvement under the premise of without departing from this utility model principle and Retouching, these improvements and modifications also should be regarded as protection domain of the present utility model.

Claims (5)

1. a kind of bulb lamp light source, is characterized in that：Including aluminium base, described aluminium base is printed with illuminating circuit, described luminous Circuit includes cathode contact, cathode contact and circuit connecting wire, is connected by circuit between described cathode contact and cathode contact Line connects a plurality of parallel branch, and described every parallel branch is provided with LED chip, and described every parallel branch is all gone here and there It is associated with PTC thermistor.

2. bulb lamp light source according to claim 1, is characterized in that：Described PTC thermistor is series at every parallel connection and props up The closing at cathode contact of road.

3. bulb lamp light source according to claim 1, is characterized in that：Described aluminium base is circle, between circular periphery etc. Away from offering 6 arc aluminium base installation positions, described circle centre position offers aluminium base centre bore.

4. bulb lamp light source according to claim 3, is characterized in that：Described parallel branch be provided with 2,4,6 or Person 8, and every two parallel branches constitute a circular luminous circle with aluminium base centre bore as the center of circle.

5. bulb lamp light source according to claim 4, is characterized in that：Be provided with described parallel branch lamp body installation position and Pin spliced eye, described lamp body installation position is located between pin spliced eye, and described LED chip is installed at lamp body installation position.