CN2890594Y

CN2890594Y - Improved lamp for lamp string

Info

Publication number: CN2890594Y
Application number: CNU200520121590XU
Authority: CN
Inventors: 王武卿
Original assignee: ZHONGYU ELECTRICAL APPLIANCE (SHENZHEN) CO Ltd
Current assignee: ZHONGYU ELECTRICAL APPLIANCE (SHENZHEN) CO Ltd
Priority date: 2005-12-31
Filing date: 2005-12-31
Publication date: 2007-04-18
Anticipated expiration: 2015-12-31

Abstract

The utility model relates to an improved light used for lampion strings, which comprises a shell, a base and a pair of lamps with filament leads. The lower part of the base is provided with a first isolation extending downwards, a pair of terminals entering into the shell and two spring terminals and also includes a underprop with a upper hollow structure, wherein the two spring terminals fixed. Positioned on the underprop, the two spring terminals near the location of the hollow contact flexibly. The underprop is fixed in the shell. The pair of terminals in the shell is connected with the two spring terminals in the same electric polarity. A support pedestal is arranged near the bottom center of underprop extending upwards, whereon the low end of the first isolation contacting or bearing when the lamp is in the shell. A second isolation is arranged near the bottom center of underprop extending downwards. The utility model provides a secure and easy-assembled light guaranteeing the circuit in a good contacting state in the case of that the bulb is not in the socket.

Description

The improved lamp that is used for the lamp string

Technical field

The utility model relates to the lamp that is used for lamp string (light strings), be particularly related to and be used for the lamp base that is connected with socket, even one or more independent bulbs are in socket the time, this socket will continue conductive electric current and keep in the lamp string remaining lamp luminous.

Background technology

The lamp string that has the lamp that is electrically connected in series as everyone knows is particularly in front and back in red-letter day, the purpose that this lamp string is used to decorate.Usually, the lamp of bunchiness is electrically connected in series rather than is connected in parallel.A particular disadvantages of this lamp string is, when the fusing of the filament in taking-up bulb or the bulb from socket, owing to produce the gap in socket, electric current can not continue to flow through this socket, cause each bulb in the socket of other series connection can not form circuit, whole series via can not be worked.Have only when " good " bulb inserts in the socket, could form circuit, thereby make electric current interruptedly not flow through.

Authorize to the utility model exercise question of Harris and disclosed a solution, still do not allow circuit to continue to play a role under the situation in socket at bulb for the United States Patent (USP) 5453664 of " the lamp string that has improved branch system " (" Light String With Improved Shunt System ").The patent of Harris relates to the bulb branch system, and this branch system constitutes at filament and disconnects or take out the shunt current that can make the bulb of flowing through under the situation of bulb from socket.

The system of Harris has first shunt that is arranged in the lamp glass bulb and second shunt that is positioned at lamp socket or socket.The combined resistance of shunt is greater than the resistance of bulb, thereby it is luminous that the lamp string is continued.

Although the device of Harris allows impaired and stay in the socket or take out fully from the lamp string under the situation of bulb and make electric current continue to flow at bulb, its requires to be designed to comprise the certain bulb of first shunt in two shunts.This system also requires second splitter system that constitutes in socket, thereby produces in the combination of each socket/bulb extra shunt is arranged.And when taking out bulb, for example when bulb burnt out and do not take out this lamp, shunt was connected (weld) and therefore prevents to replace bulb luminous.At last, because the shunt of each socket is connected, the voltage on remaining lamp increases, thereby shortens the life-span of these bulbs, causes that the cascade bulb damages.

Further, the utility application that Chinese patent discloses that a kind of patent No. is 00106940.3, the utility model name is called " lamp that is used for the lamp string " (corresponding Application No. be 09/502909, utility model title " Light String With Improved Shunt System ").This utility model is that two spring terminals are set in socket, when bulb inserts, by the separator that is arranged on the bulb bottom two spring terminals is separated, and bulb is connected; When not having bulb to insert, two spring terminals recover electrical connection each other, do not influence flowing through of electric current, thereby a kind of solution that does not still allow circuit to continue to play a role under the situation in socket at bulb is provided.But, although this utility model is the reasonable representative of current prior art, still also there is following deficiency: 1, directly be connected (during making with terminal lead (lead) by spring terminal, spring terminal is to cut apart shaping after the copper sheet binding post extension that will be connected on the terminal lead), regular meeting acts in collusion together during long spring terminal, the one, be not easy to assembling, the 2nd, the process medi-spring terminal easy deformation in assembling causes loose contact; 2, because lead directly is connected with spring terminal, when lead rocks, directly influence the contact performance of spring terminal.Especially behind bulb and pedestal separation connector, if lead rocks the easier problem that causes loose contact.

Further, United States Patent (USP) 6,609,814B2 (utility model title " APPARATUS; SYSTEMS; AND METHODS FOR MAINTAINING POWER TO A LIGHTSTRING HAVING LIGHT UNITS ARRANGED IN SERIES ") discloses a kind of improvement to above-mentioned technology, in the embodiment of this patent, two spring terminals are fixed on the support member substantially in the form of sheets, overcome the inherent defect when directly being connected with terminal lead by spring terminal, realize simultaneously that when bulb inserts by the separator that is arranged on the bulb bottom two spring terminals are separated, bulb is connected; When not having bulb to insert, two spring terminals recover electrical connection each other, do not influence flowing through of electric current.But this utility model still also has the improved place of needs: 1, because lamp string great majority are to use in outdoor or open-air occasion, dewdrop can occur in wet weather and enter in the lamp socket, the dewdrop that hangs in the separator lower end easily causes short circuit, has security hidden danger.2, this patent is more suitable for using when the grafting between lamp string and slot, when the lead that adopts non-slot connects, still has the problem of loose contact.

The utility model content

The purpose of this utility model is intended to overcome above-mentioned the deficiencies in the prior art, proposes a kind ofly situation in socket under still can not guarantee that at bulb circuit keeps the lamp that good conducting state and security are good, be convenient to assemble.

Realize the technical scheme of above-mentioned purpose:

A kind of improved lamp that is used for the lamp string, comprise: have pedestal and a pair of bulb that stretches out filament lead wire from described pedestal below, the pedestal bottom has first separator that extends downwards, the housing of described bulb can be installed, stretch into the pair of terminal of described housing, by back-up block and two elasticity closing devices that spring terminal constitutes, two spring terminals are fixed on the back-up block, two spring terminal part elasticity are conflicted together, back-up block is fixed in the housing, pair of terminal and two corresponding one by one electrical connections of spring terminal in the housing, when described bulb is arranged in described housing, the hollow position that described first separator inserts above the back-up block forcibly makes described each spring terminal separately, when from described housing, taking out bulb, described spring terminal elasticity is conflicted together, the top tool hollow structure of described back-up block, the bottom of back-up block is up extended and is provided with supporting seat near the centre, make it work as bulb when being arranged in described housing, the following end in contact of first separator or be supported on the described supporting seat, the bottom of back-up block down is extended with second separator near the centre, is used for carrying out spacing to the lead-in wire that connects two terminals.

Be provided with through hole in the bottom of described back-up block or near the back-up block sidepiece of bottom, go out to accumulate in dewdrop in the lamp string in order to water conservancy diversion.

The bottom of two symmetrical sides of described back-up block is symmetrically arranged with colludes the hole, and the end insertion correspondence of each spring terminal is colluded the hole and fixed, and is close to the spring terminal top of two symmetrical sides of back-up block and conflicts on back-up block behind the bending and forming in opposite directions.

Between the pedestal and first separator, also be provided with supplementary base, from the extended supplementary base diameter of pedestal less than susceptor diameter, first separator is extended in the supplementary base bottom, the filament lead wire that passes pedestal, supplementary base can not make lead-out wire be fractureed with convenient pedestal in being plugged into the process of light bulb holder the time on supplementary base.

A pair of spring terminal 301 behind the described bending and forming becomes " Contraband " font substantially, conflicts in a pair of spring terminal upper end that is provided with in opposite directions, and the lower end disconnects the side that is fixed on back-up block separately.

The end that is in contact with one another the spring terminal that is positioned at the place, below between described two spring terminals is designed to the upwards structure of hook.

Two other side of described back-up block is symmetrically arranged with projection, and inner walls is provided with the slot of a pair of symmetry, and back-up block is pegged graft by two symmetrically arranged projectioies in side and is fixed in the slot.

Be extended with sufficiently long second separator in the bottom of described back-up block, be used for carrying out effectively spacing the lead-in wire that connects two terminals.

Adopt technique scheme, the utility model beneficial technical effects is: 1, owing to adopt the elasticity closing device, spring terminal does not need and terminal or terminal lead direct " the tangible connection ", overcome the long defective of using in the prior art of spring terminal, easy to assembly, quick, the possibility of camber of spring reduces greatly.2, further, because terminal or terminal lead are not " the tangible connection " with spring terminal, behind bulb and pedestal separation connector, even the terminal lead that is in the external environment condition that is connected with terminal shakes, also can not cause the problem of loose contact between the spring terminal, circuit still can be in good conducting state, can not influence the duty of other lamp string in the series circuit.3, by up extending near the centre supporting seat is set in the bottom of back-up block, the following end in contact of first separator or be supported on the described supporting seat, even in the lamp string, dewdrop occurs in wet weather, or in the lamp string, spill water droplet because of carelessness, dewdrop or water droplet can not assembled in the tip, lower end of first separator yet, by up-small and down-big supporting seat water conservancy diversion in time, effectively eliminated the hidden danger of short circuit.4, by down extending second separator near the centre in the bottom of back-up block, the one, can carry out spacingly to the lead-in wire that connects two terminals, significantly reduce lead and rocked the harmful effect that is produced.The 2nd, can prevent effectively that water droplet from taking place from entering the accident that causes short circuit in the housing between two terminal leads.

Below in conjunction with accompanying drawing,, the utility model is explained in detail by means of embodiment.

Description of drawings

Fig. 1 is the biopsy cavity marker devices perspective view of the decomposition of a kind of lamp that is used for the lamp string of the utility model.

Fig. 2 is the assembly structure cross section and perspective between bulb and the elasticity closing device among Fig. 1.

Fig. 3 represents to insert and at the biopsy cavity marker devices perspective view of the lamp of link position.

Fig. 4 is the described assembly structure cross section and perspective that shows lamp of Fig. 1.

Fig. 5 is the syndeton schematic diagram of a pair of spring terminal.

Fig. 6 is the three-dimensional structure diagram of the closing device of elasticity described in Fig. 1.

The specific embodiment

Fig. 1 is the biopsy cavity marker devices perspective view of decomposition that is used for the lamp of lamp string.Lamp 140 has the bulb 20 that is contained in the pedestal 203, this pedestal 203 is detachably mounted on its size and constitutes in the light bulb holder 10 that can hold pedestal 203, light bulb holder 10 comprises housing 110 and elasticity closing device 30, and elasticity closing device 30 is installed in the housing 110.

Bulb 20 has the housing 201 that is connected with pedestal 203.Housing 201 can be made of the transparent or semitransparent material of any routine such as plastics or glass.Pedestal 203 lower ends are connected with supplementary base 208, and the filament 202 that passes pedestal 203, supplementary base 208 extensions downwards and pass supplementary base 208 is arranged in housing 201.The end of leading to the filament 202 of supplementary base 208 outsides is the lead-out wire of giving prominence to from the bottom 207 of supplementary base 208 204.Lead-out wire 204 extends upward on the supplementary base 208 and along the direction of the pedestal 203 adjacent with supplementary base 208, the diameter of supplementary base 208 is slightly less than pedestal 203, and a pair of lead-out wire 204 that is attached on the supplementary base 208 is fractureed because of the extruding of pegging graft.

Outside in supplementary base 208 bottoms is in the central area or between two lead-out wires 204 of supplementary base 208 bottoms, first separator 205 is outstanding away from the bulb 20 of supplementary base 208 in a downward direction.

First separator 205 can have pinnacle or round tip 206, when two spring terminals 301 together the time this pinnacle or round tip 206 help to make this two spring terminals 301 to separate.First separator 205 is used to cut off physics and the electrical connection between the spring terminal 301, eliminates thus and does not flow through any possible current flowing conductive path that lead-out wire 204 just enters filament 202, thereby make bulb 20 luminous.

In conjunction with Fig. 1 and Fig. 6, elasticity closing device 30 is made up of back-up block 302 and two spring terminals 301, and the structure of the top tool hollow of back-up block 302 is partially or completely inserted its pinnacle that can hold first separator 205 206.The bottom of back-up block 302 is up extended and is provided with supporting seat 307 near the centre, make it work as bulb when being arranged in described housing, the following end in contact of first separator 205 or be supported on the described supporting seat 307, the bottom of back-up block 302 down is extended with second separator 306 near the centre, be used for carrying out spacing to the lead-in wire 100 that connects two terminals, prevent wobble effects electric conductivity, and prevent that water droplet from entering housing 110 between two terminal leads 100 because of terminal lead 100 (lead).Be symmetrically arranged with in the bottom of two symmetrical sides of back-up block 302 and collude hole 304, two other side of back-up block 302 is symmetrically arranged with projection 305.It is fixing that the one end insertion correspondence of each spring terminal 301 is colluded hole 304, spring terminal 301 tops of being close to two symmetrical sides of back-up block 302 are in contact with one another on back-up block 302 after the bending in opposite directions, spring terminal 301 behind the bending and forming becomes " Contraband " font substantially, conflict in a pair of spring terminal 301 upper ends that are provided with in opposite directions, and the lower end disconnects the side that is fixed on back-up block 302 separately.Collude that hole 304 can be arranged on the bottom of back-up block 302 or near the back-up block sidepiece of bottom, its effect one is a spring terminal 301, two, go out to accumulate in dewdrop in the lamp string in order to water conservancy diversion when the wet weather.Fig. 2 has showed the biopsy cavity marker devices perspective view when bulb 20 inserts in the elasticity closing device 30.When taking out bulb 20 from socket 10, each spring terminal 301 utilizes enough power to contact with each other together and forms the connection that electric current can flow through thus so that they are in contact with one another.

As shown in Figure 5, contact better each other, the end that is in contact with one another the spring terminal that is positioned at the place, below between two spring terminals is designed to have the upwards structure of hook 307 in order to make between two spring terminals 301.

For ease of fixing, the up big and down small trapezium structure of back-up block 302 basic one-tenth, housing 110 inwalls are provided with the slot 111 of a pair of symmetry, back-up block 302 is pegged graft by two sides symmetrically arranged protruding 305 and is fixed in the slot 111, be provided with screens 112 with spring terminal 301 corresponding shell 110 inwalls fixing on back-up block 302 two other sides, conducting terminal 101 of clamping in each screens 112, conducting terminal 101 lower ends are electrically connected two terminal leads 100, and terminal lead 100 is connected with external power.When back-up block 302 inserted in the housing, conducting terminal 101 was answered long enough, and it is closely contacted with the lead-out wire 204 of spring terminal 301 and filament respectively, and Fig. 3 has showed that back-up block 302 inserts and be arranged in fully the biopsy cavity marker devices perspective view of Socket casing 110.

As shown in Figure 3, when bulb 20 is in disengaging lamp socket 10 states, because when recovering the physics contact because of elasticity between the spring terminal 301, electric current successively flow through a terminal lead 100, a conducting terminal 101, a spring terminal 301, another spring terminal 301, another conducting terminal 101, another terminal lead-in wire 100, electric current all will flow and circuit remains closed.Therefore, even when bulb 20 is not in light bulb holder 10, also can continue conductive electric current in the mode that does not have load by light bulb holder 10.

Fig. 4 is the assembly structure cross section and perspective of lamp.When bulb 20 inserts in the lamp socket 10, when the contact of the physics between the spring terminal 301 is disconnected by first separator 205, flow through the current interruptions of spring terminal 301, and make electric current flow through a terminal lead 100, a conducting terminal 101, a spring terminal 301, a lead-out wire 204 and upwards arrive filament 202, thereby make bulb 20 luminous.Then, electric current continues to flow out this filament 202 from the opposite side of the lamp 202 relative with its approaching side, and downwards by another lead-out wire 204, through another spring terminal 301, another conducting terminal 101, another terminal lead-in wire 100, flows out this specific lamp 140 up to it.Because electric current flows through bulb 20, makes lamp luminous.

Claims

1, a kind of improved lamp that is used for the lamp string, comprise: have pedestal and a pair of bulb that stretches out filament lead wire from described pedestal below, the pedestal bottom has first separator that extends downwards, the housing of described bulb can be installed, stretch into the pair of terminal of described housing, by back-up block and two elasticity closing devices that spring terminal constitutes, two spring terminals are fixed on the back-up block, two spring terminal part elasticity are conflicted together, back-up block is fixed in the housing, pair of terminal and two corresponding one by one electrical connections of spring terminal in the housing, when described bulb is arranged in described housing, the hollow position that described first separator inserts above the back-up block forcibly makes described each spring terminal separately, when from described housing, taking out bulb, described spring terminal elasticity is conflicted together, it is characterized in that: the top tool hollow structure of described back-up block, the bottom of back-up block is up extended and is provided with supporting seat near the centre, make it work as bulb when being arranged in described housing, the following end in contact of first separator or be supported on the described supporting seat, the bottom of back-up block down is extended with second separator near the centre, is used for carrying out spacing to the lead-in wire that connects two terminals.

2, according to the described improved lamp that is used for the lamp string of claim 1, it is characterized in that: described supporting seat is up-small and down-big pinnacle structure.

3, according to the described improved lamp that is used for the lamp string of claim 1, it is characterized in that: be provided with through hole in the bottom of described back-up block or the back-up block sidepiece of close bottom.

4, according to the described improved lamp that is used for the lamp string of claim 1, it is characterized in that: the bottom of two symmetrical sides of described back-up block is symmetrically arranged with colludes the hole, one end of each spring terminal inserts correspondence and colludes the hole and fix, be close to back-up block two symmetrical sides spring terminal top in opposite directions behind the bending and forming elasticity conflict on back-up block.

5, according to any described improved lamp that is used for the lamp string of claim 1-4, it is characterized in that: the end that is in contact with one another the spring terminal that is positioned at the place, below between described two spring terminals is designed to the upwards structure of hook.

6, according to any described improved lamp that is used for the lamp string of claim 1-4, it is characterized in that: two other side of described back-up block is symmetrically arranged with projection, inner walls is provided with the slot of a pair of symmetry, and back-up block is pegged graft by two symmetrically arranged projectioies in side and is fixed in the slot.

7, according to any described improved lamp that is used for the lamp string of claim 1-4, it is characterized in that: between the pedestal and first separator, also be provided with supplementary base, from the extended supplementary base diameter of pedestal less than susceptor diameter, first separator is extended in the supplementary base bottom, the filament lead wire that passes pedestal, supplementary base can not make lead-out wire be fractureed with convenient pedestal in being plugged into the process of light bulb holder the time on supplementary base.