CN201636638U

CN201636638U - Decorative lamp cluster for preventing broken circuit and over-current of lamp cluster

Info

Publication number: CN201636638U
Application number: CN2009203167218U
Authority: CN
Inventors: 郭正儒
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-12-08
Filing date: 2009-12-08
Publication date: 2010-11-17
Anticipated expiration: 2019-12-08

Abstract

The utility model relates to a decorative lamp cluster for preventing broken circuit and over-current of a lamp cluster. The decorative lamp cluster comprises a plurality of lamp holders connected in series by a power line, the lamp holder comprises a soft head and a soft core inserted into the soft head, a bulb is installed in the soft core, a left lamp base and a right lamp base of the bulb are in contact with a left elastic contact blade and a right elastic contact blade which are arranged at an inner cavity of the soft head, a tail plug is inserted into the soft head and internally provided with a resistor with a resistance substantially equivalent to that of the bulb, leads at two ends of the resistor are respectively drawn out from two sides of the tail plug and correspond to the positions of the left elastic contact blade and the right elastic contact blade, and the widest distance between the left lamp base and the right lamp base outside the soft core is more than that between the two leads outside the tail plug. After the bulb and the soft core fall from the soft head, the left elastic contact blade and the right elastic contact blade bounce inwards and are contacted with the leads at two ends of the resistor so that the current maintains stable without potential safety hazard. The utility model has very simple and convenient assembling in the production process and high production efficiency.

Description

A kind ofly prevent that the lamp string from opening circuit, the decorative chain of overcurrent

Technical field

The utility model relates to decorative chain, particularly a kind ofly prevents that the lamp string from opening circuit, the decorative chain of overcurrent.

Background technology

Festival lamp luster is because moulding is varied and light flash is colorful, have the night illumination decorative effect and form the first-selection that increases festive air for people's conduct in red-letter day, but the festival lamp luster that generally uses on the market is together in series all bulbs by a power line usually now, after a certain bulb drops on the lamp string, will cause whole lamp string normally not use, thereby influence decorative effect greatly; Occurred automatic contact lamp holder afterwards, it uses the spring leaf effect in lamp body sleeve, after certain bulb drops, can also guarantee that other bulb normally lights; ; when having a plurality of bulbs to drop on the lamp string; cause the overload of power line easily and burn electric wire; in order to solve above-mentioned safety problem; people expect being in series with in the lamp string a safe bulb again; that is to say when the electric current of lamp string surpasses certain safety value; this safety lamp is steeped oneself-meeting and is blown voluntarily; the lamp string is no longer worked; though the security of this scheme increases, after this safe bulb drops, will cause whole lamp string can not normally use equally, and when assembling the safety bulb and lamp socket all to distinguish independent assembling especially; cumbersome during production, inefficiency.

The utility model content

In order to overcome the deficiencies in the prior art, what the utility model provided a kind of rational in infrastructure, easy to assembly, safe and reliable, long service life prevents that the lamp string from opening circuit, the decorative chain of overcurrent.

The technical scheme that the utility model adopted is:

A kind of lamp string that prevents opens circuit, the decorative chain of overcurrent, comprise a plurality of lamp sockets by the power line serial connection, described lamp socket comprises soft head and the soft core that is plugged in the soft head, soft in-core is equipped with bulb, the left side of described bulb, right lamp base from soft core head pass and reflexed in the outer surface of soft core head, the left side of bulb, a right lamp base and a left side of being located at soft inner chamber, right elastic contact blade contact, be fitted with the tail plug in the soft head, the tail plug is positioned at the bottom of soft core, tail plug inside is provided with resistance and the roughly suitable resistance of bulb, the lead at resistance two ends draw respectively the tail plug both sides and with a left side, the position of right elastic contact blade is corresponding, soft core left outer, width between the right lamp base from greater than tail beyond the Great Wall the width between two leads of side from, after bulb and soft core are transferred to from soft head, a left side, right elastic contact blade contacts toward interior bullet and with the lead at resistance two ends.

Further improvement of the utility model is processed with tail plug guide groove in the described soft head.

Further improvement of the utility model, the forward and backward side in described tail plug top is provided with fixture block, and described soft head is to being provided with draw-in groove in the fixture block position.

Further improvement of the utility model, the resistance of described resistance is in 0.8～1.4 times of scope of bulb resistance.

The beneficial effects of the utility model are: be fitted with the tail plug in the soft head, tail plug inside is provided with resistance and the roughly suitable resistance of bulb, when lamp string operate as normal, resistance does not participate in work, but after this bulb drops together with soft core, left and right elastic contact blade gets final product the conductor at contact resistance two ends, utilize resistance to replace the bulb that drops, make the lamp string that is connected in series recover operate as normal, therefore, even if bulb drops morely, it is more stable that the overall work electric current of Series lamp string also can keep, and can not cause potential safety hazard.Because the structure of all soft cores is all the same in the lamp string, therefore assemble very conveniently in process of production, assembly process is simple, the production efficiency height.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a sectional structure exploded view of the present utility model;

Fig. 3 is the STRUCTURE DECOMPOSITION figure between the draw-in groove of the fixture block of tail plug and soft head.

The specific embodiment

Referring to figs. 1 through shown in Figure 3, a kind of lamp string that prevents opens circuit, the decorative chain of overcurrent, comprise a plurality of lamp sockets by power line 1 serial connection, described lamp socket comprises soft 2 and the soft core 3 that is plugged in soft 2, in the soft core 3 bulb 4 is installed, the left side of described bulb 4, right lamp base 41,42 from soft core 3 heads pass and reflexed in the outer surface of soft core 3 heads, the left side of bulb 4, right lamp base 41,42 be located at the left side of soft 2 inner chamber, right elastic contact blade 61,62 contacts, be fitted with tail plug 5 in soft 2, tail plug 5 is positioned at the bottom of soft core 3, tail plug 5 inside are provided with the resistance resistance 51 roughly suitable with bulb 4, the lead at resistance 51 two ends draw respectively tail plug 5 both sides and with a left side, right elastic contact blade 61,62 position is corresponding, soft core 3 left outer, width between the right lamp base from greater than the width between two leads in tail plug 5 outsides from.Product is when producing assembling, earlier bulb is inserted in the soft core, insert together again in the soft head, the head of soft core struts left and right elastic contact blade 61,62, make between left and right sides elastic contact blade 61,62 and the tail plug 5 and have certain clearance, during energising work, the sense of current from the right elastic contact blade 62 of right lamp base 42 Zhao of left elastic contact blade 61 Zhao left side lamp base 41 Zhao bulbs 4 Zhao, forms current path successively.In use, after bulb 4 and soft core 3 drop from soft 2, left and right elastic contact blade 61,62 contacts toward interior bullet and with the lead 52,53 at resistance 51 two ends, resistance 51 has replaced this bulb that drops, make other bulb in the lamp string normally luminous, therefore, even bulb 4 drops morely, it is more stable that the operating current of overall lamp string also can keep, and can not cause potential safety hazard.

The width of the design's left and right elastic contact blade 61,62 is wide at the top and narrow at the bottom, is fan-shaped, can be more and more tightr when cooperation is installed.Similarly, it is wide at the top and narrow at the bottom equally that the tail plug contacts the position with the installation of soft head, is funnel-form.

This product can be positioned at soft 2 middle when tail plug 5 is inserted, be processed with tail plug guide groove 21 in described soft 2, the use of tail plug guide groove also makes tail plug 5 more stable with soft 2 cooperate, and the situation that can not occur swinging occurs, thereby has strengthened this reliability of products;

In order to prevent that tail plug 5 from gliding deeplyer when inserting, the design is provided with fixture block 54 in the forward and backward side at tail plug 5 tops, described soft 2 to should being provided with draw-in groove 22 in fixture block 54 positions, fixture block 54 withstands on location on the draw-in groove 22 when assembling, prevents because of tail plug caused by sliding down energising function.

More convenient during installation for soft core 3 is imported, can be processed with fillet in soft core 3 bottoms, and make left and right lamp base 41,42 tight obedient fillet settings.

In order to guarantee that the part bulb is dialled the operating current of back light string and can be stablized, resistance 51 select that the resistance with bulb 4 is close as far as possible for use, preferred, the resistance of described resistance 51 is 0 of bulb 4 resistances.In 8～1.4 times of scopes.

The technical program can be applicable to use on the decorative chain of conventional bulb, also can be applied on the LED decorative chain.

The above be the utility model preferred embodiment, it does not constitute the restriction to the utility model protection domain, so long as realize that with essentially identical means the purpose of this utility model all should belong to protection domain of the present utility model.

Claims

1. one kind prevents that the lamp string from opening circuit, the decorative chain of overcurrent, comprise a plurality of lamp sockets by power line (1) serial connection, described lamp socket comprises soft head (2) and is plugged in soft core (3) in soft (2), bulb (4) is installed in the soft core (3), the left side of described bulb (4), right lamp base (41,42) from soft core (3) head pass and reflexed in the outer surface of soft core (3) head, the left side of bulb (4), right lamp base (41,42) with a left side of being located at soft head (2) inner chamber, right elastic contact blade (61,62) contact, be fitted with tail plug (5) in the soft head (2), tail plug (5) is positioned at the bottom of soft core (3), tail plug (5) inside is provided with the resistance resistance (51) roughly suitable with bulb (4), the lead at resistance (51) two ends draw respectively tail plug (5) both sides and with a left side, right elastic contact blade (61,62) position is corresponding, soft core (3) left outer, width between the right lamp base from greater than the width between two leads in tail plug (5) outside from, after bulb (4) and soft core (3) are transferred to from soft head (2), a left side, right elastic contact blade (61,62) contact toward interior bullet and with the lead at resistance (51) two ends.

2. according to claim 1ly a kind ofly prevent that the lamp string from opening circuit, the decorative chain of overcurrent, it is characterized in that: be processed with tail plug (5) guide groove (21) in the described soft head (2).

3. according to claim 1ly a kind ofly prevent that the lamp string from opening circuit, the decorative chain of overcurrent, it is characterized in that: the forward and backward side in described tail plug (5) top is provided with fixture block (54), and described soft head (2) is to being provided with draw-in groove (22) in fixture block (54) position.

4. describedly a kind ofly prevent that the lamp string from opening circuit, the decorative chain of overcurrent according to claim 1,2 or 3, it is characterized in that: the width of described left and right elastic contact blade (61,62) is wide at the top and narrow at the bottom, is fan shape.