CN2870367Y

CN2870367Y - Improved LED decorative lamp string

Info

Publication number: CN2870367Y
Application number: CNU2006200545023U
Authority: CN
Inventors: 邵炽良
Original assignee: Individual
Current assignee: DONGGUAN HAOLIANG INDUSTRIAL Co Ltd
Priority date: 2006-01-26
Filing date: 2006-01-26
Publication date: 2007-02-14
Anticipated expiration: 2016-01-26

Abstract

The utility model discloses an improved LED decorating lamp cluster, which includes front socket, tail socket, AC/DC switch device composed by four rectifying diodes, and a lamp suit composed by at least one LED light-head, the lamp suit is placed between front socket and tail socket. The rectifying diodes mentioned above are divided into two groups, the first group is placed on the front socket, and the second group is placed on tail socket. The lamp group includes two or more, and the adjacent groups are connected by a bridge rectifier. The utility model separates the bridge rectifier used in the former LED decorating lamp cluster into two groups, thus one lead is saved and the cost is reduced while the new one is more beautiful. In addition, two or more LED decorating lamp clusters can be connected by a bridge rectifier, so as to improve the flexibility.

Description

A kind of improved LED decorative chain

Technical field:

The utility model relates to the lamp decoration technical field, especially relates to a kind of ornamental LED lamp string.

Background technology:

Decorative chain is one of article of being seen everywhere in daily life of people, and when the curtain of night arrived, the motley radiance that the LED lamp holder of these decorative chains sends can play good setting off and decorative effect to surrounding environment.Just because of decorative chain has such effect, many manufacturers are all making great efforts the release product that structure is more simple, result of use is more good to dominate the market.The characteristics that competence exertion goes out high brightness and do not glimmer because LED works under direct current, and when adopting alternating current to drive, cause the problem that the LED life-span reduces easily, therefore, see shown in the accompanying drawing 1: common decorative chain mainly comprises preceding 01 an and tail slotting 02 of inserting that can directly be connected with electric main at present, before insert 01 and tail insert between 02 the positive and negative terminal and link to each other by power line, between power line, be parallel with AC-DC converter 03.The output of this AC-DC converter 03 connects lamp group 04, this lamp group 04 is made of at least one LED series block 041, the LED series block 041 of only drawing in the accompanying drawing 1, when if a plurality of LED series block 041 is arranged, then these a plurality of LED series block 041 should be parallel with one another, so that the voltage at each LED series block 041 two ends is identical.From accompanying drawing 2 as can be seen, the AC-DC converter of this structure is a bridge-type rectifier, and it need be with four leads: 031,032,033,034, make the lamp string the outward appearance impression not even desirable, production cost is also higher.In addition, owing to do not connect dropping equipment in the LED series block 041, make the voltage at LED series block 041 two ends be always the supply voltage of 220V or 110V, and the rated voltage of LED is generally 2.2V, this is necessary for 100 (then being 50 with regard to the normal voltage of 110V) with regard to the LED quantity in defining LED series block 041, makes that the flexibility of LED decorative chain is not high.Secondly, this decorative chain can only use separately, plural decorative chain can't be linked to each other to use, and has certain limitation.

The driving voltage of the LED lamp holder that above-mentioned decorative chain is used immobilizes (such as yellow led is 2.2V, and blue led is 3.5V), and this just makes that the voltage that is added on each LED lamp holder must be identical, and dissimilar LED lamp holders can't be used with in same lamp string.Secondly,, after one of them has been gone bad, the voltage at other LED lamp holder two ends will be changed, and cause whole decorative chain to use undesired even can't use because the series connection of LED lamp holder is used.In addition, two pins that the LED lamp holder exposes are silver plate, easily oxidation, thus cause the situation of LED lamp holder loose contact.

The utility model content:

One of the purpose of this utility model is the weak point that exists at prior art and a kind of improved LED decorative chain is provided, this LED decorative chain is under identical situation, the more existing LED decorative chain of its used lead is few, and can as required plural LED decorative chain be coupled together use.

Two of the purpose of this utility model is to provide the LED lamp holder quantity in a kind of LED lamp holder series block flexible and changeable LED decorative chain.

Three of the purpose of this utility model is to provide a kind of can mix the LED decorative chain that uses with different types of LED lamp holder.

Wherein have after one or more LED lamp holders damages even four of the purpose of this utility model is to provide a kind of, the user can learn at once, and the LED decorative chain of in time being changed.

Five of the purpose of this utility model is to provide a kind of LED lamp holder the LED decorative chain of loose contact phenomenon can not occur.

For achieving the above object, insert before the utility model comprises, tail is inserted, the DC-AC conversion device of being made up of four rectifier diodes and the lamp group that is made of at least one LED lamp holder series block, the lamp group is inserted and between tail inserts preceding, described rectifier diode is divided into two groups, wherein, insert the position before first group rectifier diode is positioned at, second group rectifier diode is positioned at tail and inserts the position, described lamp group is more than two, and two adjacent lamp groups link to each other by a bridge-type rectifier.

Be provided with the dropping equipment that constitutes by resistance and electric capacity within the LED lamp holder series block, LED lamp holder quantity in the LED lamp holder series block be set as required to make things convenient for the user.

LED lamp holder series block in the described lamp group is more than two, and is connected in parallel between each LED lamp holder series block, and is identical with the voltage that guarantees each LED lamp holder series block two ends.

Preceding insert and first group of rectifier diode between, and tail is inserted and second group of rectifier diode between be connected with fuse respectively.

Bridge-type rectifier is made of four rectifier diodes, and rectifier diode is encapsulated in the plastic shell, so can be moistureproof, and come also very convenient when wiring.

Described LED lamp holder is made of light transmitting shell, LED, plastic cement big envelope, wherein, between two pins of LED and be connected to the low-light level LED identical with the driving voltage of LED, like this, even LED damages in the LED lamp holder, the also unlikely use that influences the whole LED decorative chain, and the user can find and change this lamp holder immediately.

Be connected with resistance on one of them pin of described LED, by different resistance values is set, the user can change the voltage that is added in each LED lamp holder two ends, thereby realizes using different types of LED lamp holder with in same lamp string purpose, strengthens the function of LED decorative chain.

The pin of described LED is divided into two joints, wherein, is sealed in that joint electroplate in the plastic cement big envelope, and stretches out that joint copper coating outside the plastic cement big envelope, the problem of easy oxidation occurs with the pin of avoiding exposing.

The beneficial effects of the utility model are: it splits into two groups with used bridge-type rectifier in original LED decorative chain, can reduce by a lead, thereby improves its aesthetics and reduce production costs.In addition, it can link to each other plural LED decorative chain by bridge-type rectifier, thereby has improved decorative chain flexibility in the use greatly.

Description of drawings:

Below in conjunction with accompanying drawing the utility model is described further:

Accompanying drawing 1 is the circuit theory diagrams of existing LED decorative chain

Accompanying drawing 2 is the circuit theory diagrams of the AC-DC converter in the accompanying drawing 1

Accompanying drawing 3 is the circuit theory diagrams of one of the utility model embodiment

Accompanying drawing 4 is two the circuit theory diagrams of the utility model embodiment

Accompanying drawing 5 is the schematic appearance that the bridge rectifier in accompanying drawing 3 and the accompanying drawing 4 is decorated

Accompanying drawing 6 is the structural representation of LED lamp holder of the present utility model

Accompanying drawing 7 is the partial enlarged drawing at A place in the accompanying drawing 6

Embodiment:

The following stated only is preferred embodiment of the present utility model, does not therefore limit protection range of the present utility model.All equal conversion or modifications of being done according to principle of the present utility model and spirit also all should be included within the protection range of the present utility model.

See shown in accompanying drawing 3 and the accompanying drawing 4: the DC-AC conversion device of insert 10 before LED decorative chain of the present utility model comprises, tail inserts 20, forming by four rectifier diodes 31～34 and (be a LED lamp holder series block in the accompanying drawing 3 by at least one LED lamp holder series block, three LED lamp holder series block that are connected in parallel have then been expressed in the accompanying drawing 4, certainly also can the LED lamp holder series block more than three in parallel) the lamp group 30 that constitutes, lamp group 30 preceding insert 10 and tail insert between 20.Four rectifier diodes 31～34 are divided into two groups, wherein, insert 10 positions before first

group rectifier diode

31 and 32 is positioned at, and its negative pole connects together, and are anodal then insert 10 and link to each other with the anode of tail slotting 20 and the line of negative terminal with preceding respectively; Second

group rectifier diode

33 and 34 is positioned at tail and inserts 20 positions, and its positive pole connects together, and negative pole then links to each other with the negative terminal line with the anode of tail slotting 20 with preceding slotting 10 respectively.In addition,, insert between 10 and first groups of rectifier diodes, and be connected with fuse 11,21 respectively between the slotting 20 and second groups of rectifier diodes of tail preceding for the unexpected variation that prevents voltage and current burns out the lamp string.Lamp group 30 is more than two, adjacent two lamp groups 30 link to each other by a bridge-type rectifier 40, this bridge-type rectifier 40 is made of four rectifier diodes 41～44, see shown in the accompanying drawing 5, four rectifier diodes 41～44 of bridge-type rectifier 40 are encapsulated in the plastic shell, to reach moisture effect, in addition, use also more convenient.

In order to make the LED lamp holder quantity in each LED lamp holder series block more flexible, be provided with the dropping equipment that constitutes by resistance 51 and electric capacity 52 within the LED lamp holder series block.Like this, only need to select the resistance 51 of different resistances, can change the voltage that is added in LED lamp holder series block two ends, thereby make the LED lamp holder quantity in each LED lamp holder series block can be different.

See that accompanying drawing 5 is as for shown in the accompanying drawing 7: the LED lamp holder is made of light transmitting shell 301, LED302, plastic cement big envelope 303, wherein, and between two pins 304 of LED302 and be connected to the low-light level LED305 identical with the driving voltage of LED302.In this way, after LED302 damages, originally the voltage that was added on the LED302 changes on the LED305 that is added in low-light level, the voltage that the whole LED lamp holder is born is then constant, thereby has avoided causing the whole LED decorative chain to use problem undesired even that can't work because of a LED lamp holder damages.

Because its driving voltage difference of different types of LED, for each different types of LED is used, can on one of them pin of LED302, be connected with resistance 306, like this in same decorative chain, by changing resistance value, can make different types of LED lamp holder obtain required magnitude of voltage.

The pin of described LED302 divides 304 to be two joints, wherein, is sealed in that joint electroplate in the plastic cement big envelope 303, and stretches out that joint copper coating outside the plastic cement big envelope 303.Its concrete grammar is earlier the pin of LED to be cut off, and the pin that welds a joint copper coating afterwards again gets final product.

Claims

1. improved LED decorative chain, before comprising, it inserts (10), tail is inserted (20), the DC-AC conversion device of forming by four rectifier diodes (31～34), and the lamp group (30) that constitutes by at least one LED lamp holder series block, inserting (10) and tail before lamp group (30) is positioned at inserts between (20), it is characterized in that: described rectifier diode (31～34) is divided into two groups, wherein, before being positioned at, first group rectifier diode (31) and (32) insert (10) position, second group rectifier diode (33) and (34) are positioned at tail and insert (20) position, described lamp group (30) is more than two, and adjacent two lamp groups (30) link to each other by a bridge-type rectifier (40).

2. LED decorative chain according to claim 1 is characterized in that: be provided with the dropping equipment that is made of resistance (51) and electric capacity (52) within the LED lamp holder series block.

3. LED decorative chain according to claim 2 is characterized in that: the LED lamp holder series block in the described lamp group (30) is more than two, and is connected in parallel between each LED lamp holder series block.

4. LED decorative chain according to claim 3, it is characterized in that: insert between (10) and the first group of rectifier diode (31,32) preceding, and be connected with fuse (11), (21) respectively between tail slotting (20) and the second group of rectifier diode (33,34).

5. LED decorative chain according to claim 1 is characterized in that: bridge-type rectifier (40) is made of four rectifier diodes (41～44), and rectifier diode (41～44) is encapsulated in the plastic shell.

6. according to each described LED decorative chain in the claim 1 to 5, it is characterized in that: described LED lamp holder is made of light transmitting shell (301), LED (302), plastic cement big envelope (303), wherein, between two pins (304) of LED (302) and be connected to the low-light level LED (305) identical with the driving voltage of LED (302).

7. LED decorative chain according to claim 6 is characterized in that: be connected with resistance (306) on one of them pin of described LED (302).

8. LED decorative chain according to claim 7, it is characterized in that: the pin branch (304) of described LED (302) is two joints, wherein, be sealed in that joint electroplate in the plastic cement big envelope (303), and stretch out that joint copper coating outside the plastic cement big envelope (303).