CN205376982U - Ultra -thin screwing lamp holder of quadrature grafting - Google Patents

Abstract

The utility model is suitable for a connector field provides an ultra -thin screwing lamp holder of quadrature grafting. The utility model is used for be fixed in the bulb in the lamp stand and carry out electrical connection. Characterized by: the lamp holder comprises the slice part that lamp holder body and two backing sheets have wavy edge. But lamp holder body and backing sheet alternate segregation thickness far are less than traditional screwing lamp holder and easily pack the transportation, and the two rigid fastening that pegs graft perpendicularly forms the screw cap edge that accords with national standard during the use, but the screw in corresponds the screw socket of model, the novel ultra -thin LED bulb of specially adapted. The utility model discloses very big reduction the product thickness of screw -socket bulb, practice thrift metal material, reduction in production cost to make it can be stable fix in traditional screw socket and carry out reliable electrical connection.

Description

The ultra-thin screw socket of orthogonal grafting

[technical field]

This utility model relates to a kind of adapter, is a kind of screw socket meeting national standard.Eliminate the metal threaded crust above tradition screw socket, be particularly well-suited to the full surface-mounted device ultra thin LED bulb of a new generation.Patent task is that the structure to tradition screw socket improves, and reduces the product thickness of LED bulb greatly, saves metal material, reduces production cost, and can be stably fixed in traditional standard screw lamp holder and be electrically connected reliably with it.

[technical background]

Major part bulb is provided with lamp holder.The Main Function of lamp holder (Lampcap) is to be fixed on by bulb in lamp socket (Lampholder) and be electrically connected with it.When more changing the bulb, lamp holder can easily connect with lamp socket or separate.China once used a kind of B22 bayonet socket, due to the reasons such as required precision high cost is high, incompatible with international standard fail popular so far, be on the verge of to eliminate.Most tungsten filament lamp for general services adopt screw socket (having another name called spiral lamp holder) to be increasingly becoming the most widely used lamp holder form in recent years in the market.

Screw socket is exactly that bulb is screwed in the bulb adapter realizing fixing and be electrically connected in lamp socket by the mode adopting screw thread.Lamp holder has the copper cylinder threaded interior walls of identical concavo-convex profile and pitch when screwing in engage each other with in lamp socket, completes the fixing of bulb.Cap screw thread outer wall is that an electrode electrically connects with inboard wall of lamp holder copper cylinders contact, and lamp holder bottom centre position has another electrode, contacts electrical connection with the elastic sheet metal bottom lamp socket during screw-in, has glass pillar insulated from each other between two electrodes.The screw thread crust of lamp holder adopts pyrite, ferrum nickel plating, aluminum nickel plating, makes etc. conductive metal thin plate, and processing method is rolling forming, welding lead in lamp process processed, finally with glue, metallic lamp holder carries out with the glass of bulb walls the bonding manufacture completing bulb.

Almost all of incandescent lamp bulb all adopts screw socket, common specification to have E27 lamp holder, E14 lamp holder and E40 lamp holder.Letter e represents employing Edison screw standard, the approximation of E numeral light seat major diameter of thread below, the standards such as the pitch of spiral lamp holder and detailed overall dimensions were promulgated by International Electrotechnical Commission IEC as far back as 1969, standard No. IEC60061-1:1969, overwhelming majority of countries is all continued to use international standard or sets up national standard compatible in the world, such as China GB1406-1989 the earliest and GB1406-2001 standard afterwards, pattern and the dimensional height of the screw lamp holder specified to current GBT1406.1-2008 are compatible to international standard IEC60061-1:1969.Observe IEC standard due to each national standard, domestic bulb can be directly compatible with the lamp socket of external production, and the screw socket therefore meeting national standard has considerable degree of international adaptability all as far as possible.

The structure of screw socket and profile are used till today after being invented by Thomas Edison before a century always, it does not have change.The technological improvement that screw socket carried out in recent years is all carried out from material and technique, and holder structure is also unchanged.The ferrum nickel lamp holder of early application changes pyrite lamp holder into owing to easily getting rusty, and copper cost height changes again aluminum lamp holder into.Due to leaded in the scolding tin of welding lead, under the pressure of ROHS certification pressure, lead-free product changes soldering-free type Plastic lamp socket into.Wire is pressed between metal threaded shell and plastic liner and saves scolding tin bonding wire by Plastic lamp socket compactor, and center electrode insulation body is changed into plastics by glass, utilizes elasticity of plastics wire and electrode cap to be forced together and forms electrical connection.Owing to the thermostability of plastics is bad, high temperature can deform, and exempts from welded lamp holder and is only applicable to the relatively low LED bulb of caloric value and electricity-saving lamp, and electric filament lamp, Metal halogen lamp and the high voltage mercury lamp that power is bigger all can not with exempting from welded lamp holder.

LED bulb is being increasingly becoming lighting market main flow with the performance of its excellence in recent years.LED luminous efficiency is high and not mercurous, energy-conserving and environment-protective.Constant-current driving and dispel the heat good use environment under overlong service life, it is expected to reach more than 50,000 hours, surmounts conventional any light source product and the low use safety of LED driving voltage completely, do not have start-up course easily to dim, be third generation light source most with prospects at present.

But the theoretical life-span of LED bulb seldom can reach in actual use.Easily there is frequent flicker in later stage in life-span, time bright time go out, light decay such as does not even work at the fault, and this is also not all LED itself and damages, but constant-current drive circuit fault.Constant-current circuit provides constant DC current for LED, but there is the state of zero crossing in 220V alternating current power supply, filter capacitor now must be relied on to provide stable power-supplying, commonly use electrochemical capacitor at present, about 8000 hours life-spans, lost of life during high temperature, far below the life-span of LED element, solid electrolyte capacitor is pressure not high cannot be used.Current best solution be adopt need not the novel driving IC chip of electrochemical capacitor, after being characterized in eliminating high-voltage capacitance circuit still can normal operation without obvious periodic flicker occurs.It is change be completely dependent on capacitance energy storage as part into by inductance afterflow energy storage that no electrolytic capacitor drives.The life-span of inductance is almost unlimited, and the working life of this drive scheme is closer to the projected life of LED component.And improve input power factor, be applicable to controllable silicon light modulation, be the developing direction of LED bulb of future generation.Owing to all adopting semiconductor device and ceramic paster electric capacity in drive circuit, this scheme is also called integration without capacitive plates formula LED bulb.

Integral LED bulb all adopts paster packaging to be welded on same circuit board by all components and parts such as driving IC, metal-oxide-semiconductor, chip inductor, rectifier bridge, LED, Resistor-Capacitor Unit, it is not further divided into the part such as " drive circuit " and " LED component ", all elements weld on it, realizing high efficiency and heat radiation typically by aluminum base circuit board, one piece of circuit board completes the repertoire such as Power convert and luminescence.Novel all-in-one product achieves breakthrough dimensionally, due to without electrochemical capacitor, maximum sticking-element thickness only has several millimeters, the integral thickness counting circuit board and this LED of shell in is also only several millimeters, but due to the overall dimensions restriction of tradition screw socket, the minimum thickness of product has to comply with about 27 millimeters (for E27) of regulation in GBT1406.1-2008 standard and becomes the technical bottleneck manufacturing ultra-thin LED bulb.

[utility model content]

Task of the present utility model improves tradition screw socket exactly, the thickness of lamp holder is greatly reduced with the structure of innovation, save metal threaded shell, save metals resources, reduce production cost, to realizing lamp holder ultrathin, safe being arranged on of ultra-thin LED bulb of future generation enabling sensitive paper equally thin uses screw lamp holder widely interior and is electrically connected reliably.

This utility model lamp holder is made up of support chip and two sheet components of lamp holder body, and the two can be separated from each other.Lamp holder body and flat sheet-like integration bulb generally screw in the part of lamp socket, the outer contact surface of the shell of insulant manufacture has conductive coating electrode to be connected with internal circuit board by the wire that is hidden in housing slot, it is welded with drive circuit that SMD components forms and LED realizes the lighting function of bulb.Generally support chip does not have electrode, only serve the effect decomposing suffered stress support and fixing lamp holder body.Advise adding the 3rd parts in the occasion (such as household reading lamp bulb) requiring safety utilization of electric power protection against electric shock: insulating shield, play and block the space stayed after lamp holder screws in lamp socket, it is prevented that finger stretches into the situation that socket contact internal electrode occurs to get an electric shock.In this utility model: lamp holder body and support chip, the two is the parts that must have, it is necessary that insulating shield is not this lamp holder institute, can omit (such as street lamp bulb) or to occasion (bulb such as below the 36v) insulating shield that electrical shock safety requirement of shelter is not high under being difficult to the environment touched.

Support chip and lamp holder body can use different insulant separately manufactured, and plastics, resin, pottery, glass, epocel plate, gluing cardboard etc. can be adopted to have the insulant manufacture of certain mechanical strength.As not high in low power LED bulb operating temperature, support chip can adopt the hard plastic injection molding manufacture of low cost, and lamp holder body adopts high temperature resistant and that intensity is higher ceramic material manufacture, in order to bear mechanical stress.The support chip being placed in packing box can parallel placement take up room minimum with lamp holder body, it is simple to storage transport, saves shelf space.Support chip and lamp holder body only just need to be mutually inserted with subvertical angle before installing and using and be fixed together by finished product lamp.Support chip and lamp holder body have for locking the device of mutual alignment between the two, the described lamp holder of formation that is firmly rigidly connected after locking, can be formed.The outer surface of the part that the decussation assembly formed after grafting screws in lamp socket is wavy concavo-convex fluctuating sample.With fixing interval, raised or sunken on support chip and lamp holder body outer surface edge occurs that what make it at lamp holder is axially formed a helix by certain original position, pitch and concavo-convex size meet the national standard of respective model screw socket, compatible with the metal threaded inside wall height in screw lamp holder, make the engageable screw-in of described lamp holder.Support chip and lamp holder body are respectively arranged with 2 such surfaces contact with inboard wall of lamp holder, these 4 wavy contact depressions in the surface are different each other with protruding appearance position, concavo-convex initial angle position occur on each adjacent contact surface differs 90 degree each other, i.e. 1/4th spirals.nullRegulation according to GB GBT1406.1-2008，The pitch of E27 type lamp holder is 3.629 millimeters，Calculate based on this，E27 lamp holder of the present utility model appearance position of concavo-convex tooth on each adjacent contact chip is adopted to differ 0.90725 millimeter each other，On 2 outer surfaces that support chip or lamp holder body contact with inboard wall of lamp holder，Cave in and differ 180 degree with projection，Occur position differ 1.8145 millimeters of (for E27) such designs make often after a circle i.e. 4 contact chips depression contact surface coincidence with projection but also same，Form a complete helix，The overall dimensions of helix meets E14、E27、The national standard of the model screw sockets such as E40 and with the thread profile highly compatible of metal screw shell wall in lamp socket，Make that described lamp holder is engageable to be screwed in corresponding lamp socket and form with it firm physical connection and be tightly fastened bulb.The surface, thread contact face of lamp holder body is equipped with lamp holder body bottom portion shaft core position outer surface and contacts electrode and contact the electrical connection realizing bulb and lamp socket respectively with inboard wall of lamp holder and bottom resilient sheet metal, sample first with conventional lights, electrically isolated from one another between two electrodes.

This utility model screw socket under released state thickness much smaller than tradition lamp holder, in conjunction with after form the profile of threaded outer wall and meet national standard, can screw in corresponding screw lamp holder, it is adaptable to ultra-thin LED bulb.Together with support chip is mutually perpendicular to locking latch with lamp holder body, form rigidly connected firm assembly.Support chip plays the effect decomposing the assembly after stress keeps lamp holder body not run-off the straight and strengthens screw-in with the bonding strength of lamp socket wall, bulb subjected to stress in all directions is carried out Orthogonal Decomposition by the support chip of decussation and this physical ability of lamp holder, it is then passed to the metal threaded inwall in lamp socket, makes the mechanical performance that this ultra-thin lamp holder fixed light steeps no less than traditional solid lamp holder.Sample first with solid lamp, the electrode screwing rear lamp holder body bottom portion salient position can compress the elastic metallic contact of lamp socket bottom centre, and thread contact face electrode realizes good electrical connection with the metal threaded inwall close contact in lamp socket simultaneously.

[accompanying drawing explanation]

Fig. 1 is the explosive view of the assembly of the ultra-thin screw socket first embodiment of the orthogonal grafting of this utility model

Fig. 2 is the birds-eye view of the lamp holder body of the ultra-thin screw socket first embodiment of the orthogonal grafting of this utility model

Fig. 3 is the three-dimensional side view of the lamp holder body of the ultra-thin screw socket first embodiment of the orthogonal grafting of this utility model

Fig. 4 is the birds-eye view of support chip in the ultra-thin screw socket first embodiment of the orthogonal grafting of this utility model

Fig. 5 is the three-dimensional side view of support chip in the ultra-thin screw socket first embodiment of the orthogonal grafting of this utility model

Fig. 6 is the three-dimensional side view of the insulating shield of this utility model ultra-thin screw socket of orthogonal grafting the one the second embodiment

Fig. 7 is the horizontal side view of the assembly of the ultra-thin screw socket first embodiment of the orthogonal grafting of this utility model

Fig. 8 is the three-dimensional side view of the assembly of the ultra-thin screw socket first embodiment of the orthogonal grafting of this utility model

Fig. 9 is the three-dimensional side view of the assembly tape insulation bluff piece of the ultra-thin screw socket first embodiment of the orthogonal grafting of this utility model

Figure 10 is the explosive view of the assembly of ultra-thin screw socket the second embodiment of the orthogonal grafting of this utility model

Figure 11 is the three-dimensional side view of the lamp holder body of ultra-thin screw socket the second embodiment of the orthogonal grafting of this utility model

Figure 12 is the three-dimensional side view of the support chip of ultra-thin screw socket the second embodiment of the orthogonal grafting of this utility model

Figure 13 is the birds-eye view of the support chip of ultra-thin screw socket the second embodiment of the orthogonal grafting of this utility model

Figure 14 is the bottom view of the support chip of ultra-thin screw socket the second embodiment of the orthogonal grafting of this utility model

Figure 15 is the rearview of the support chip of ultra-thin screw socket the second embodiment of the orthogonal grafting of this utility model

The assembly that Figure 16 is ultra-thin screw socket the second embodiment of the orthogonal grafting of this utility model completes the three-dimensional side view after combining

Figure 17 is the explosive view of the assembly of the tape insulation bluff piece of ultra-thin screw socket the second embodiment of the orthogonal grafting of this utility model

The assembly that Figure 18 is the tape insulation bluff piece of ultra-thin screw socket the second embodiment of the orthogonal grafting of this utility model completes the three-dimensional side view after combining

[detailed description of the invention]

It is reach technological means and the action effect that expection purpose adopts for this utility model is expanded on further, below in conjunction with drawings and Examples etc., feature of the present utility model and effect is made detailed description.

The ultra-thin screw socket of the orthogonal grafting of this utility model meets the correlation standard in GB GBT1406.1-2008 for each model screw socket overall dimensions, makes the bulb of employing this utility model lamp holder can screw in normal in the screw lamp holder of the corresponding model meeting national standard use.

It is illustrated in figure 1 the explosive view of first embodiment, parts 11 in figure are lamp holder body, and parts 13 are support chip, and 38 is chock, it is used for wedging the gap stayed between square notch after support chip is combined with lamp holder body, support chip and lamp holder body are firmly fixed together into assembly.The birds-eye view of lamp holder body as in figure 2 it is shown, lamp holder body three-dimensional side view as it is shown on figure 3, wherein the front area of lamp holder body be bulb body 12, its shell is contained within circuit board and drives the elements such as IC and LED to realize Power convert and lighting function.The axial location of its rear section is provided with a square narrow slot mouth 37, and support chip 13 realizes inserting this square notch 37 and the Orthogonal Composite of lamp holder body.The decline of lamp holder body is insert the contact component of screw lamp holder, its bottommost scribbles conductive silver paint, silver slurry, elargol through the outer surface of the projection of axis and the wavy concavo-convex edge of the left and right sides or is sprayed with conductiving metal coating and forms surface contact electrodes 22 and 21, in figure shown in the part of black, realize contacting electrical connection with the metal clips of center in lamp socket and the metal spiral sleeve of inboard wall of lamp holder respectively.Two surface contact electrodes 22 and 21 being arranged on lamp holder body alien invasion insulate each other, but its to induce current into, by thin wire, the circuit board hiding oneself in shell by the aperture on lamp holder body or gap be its power supply.

Fig. 4 is the birds-eye view of support chip 13, Fig. 5 is its axonometric chart, Fig. 6 is the axonometric chart of insulating shield 16, it is provided with open its top of notch 34 bottom support chip 13 and has a projection 36, notch 34 is fixing for it being directed at the shaft core position of lamp holder body 11, projection 36 has two effects, first is used for limiting the direction of insertion of support chip, second prevents it from dropping from rear when there being insulating shield 16 for withstanding insulating shield 16, insulating shield 16 relies on the lamp holder body 11 in toroidal to realize location with support chip 13, combine rear insulating shield 16 to be stuck between support chip 13 and lamp holder body 11 and can not arbitrarily move.The explanation of the direction of insertion of support chip is puted up on a certain surface on lamp holder body 11, designate the 13 narrow slot mouths 37 that can only penetrate from this face 11 and insert combination, the narrow slot mouth length on 11 has been exceeded due to projection 36, therefore 36 the support chip 13 direction through notch 37 is limited, make it can only from while penetrating, support chip 13 and the determination of lamp holder body 11 direction of insertion is realized, it is prevented that by anti-inserted for support chip 13 with this.Owing to 13 concavo-convex contact surfaces wavy with the 4 of 11 can not form a continuous print helix time anti-inserted, assembly will be unable to screw in lamp socket, and projection 36 is mainly used in determining the fool proof that direction of insertion ensures 13 and 11 cohesive process.

The side view of first embodiment shown in Fig. 7, in Fig. 7, the lamellar body of side is lamp holder body 11, on its side surface, the part of black is the conductive metal film electrode 21 and 22 of coating on lamp holder body 11, 13 support chips for facing, the two keeps orthogonal attitude to combine, the contact surface of the two combination has a triangular-shaped wedge 38, realize firmly being locked the two in order to insert the gap stayed after the two combines, Fig. 8 is the axonometric chart of first embodiment, insulating shield 16 is added compared with Fig. 7, 16 are stuck between support chip 13 and lamp holder body 11 realizes location.First embodiment can alternatively be used insulating shield 16, employs the assembly integral vertical body-side view of first embodiment of insulating shield as shown in Figure 9.

Figure 10 show the explosive view of the second embodiment, lamp holder body 11b, and the profile of support chip 13b is different from first embodiment, is different from the chock 38 in first embodiment, uses shop bolt 17 instead and realizes fixing between the two.Second embodiment has been improved compared with first embodiment, second embodiment relies on the structure of himself to realize the fool-proof design of support chip 13b direction of insertion, and do not rely on the direction of insertion explanation being attached on lamp holder body, even if user does not see that description is without by anti-inserted for support chip 13b and lamp holder body 11b, after decomposition, structure is as shown in Figure 10.The three-dimensional side view of the lamp holder body 11b of i.e. the second embodiment of Figure 11, bottom the wavy membrane electrode 21 of identical with first embodiment is both sides and axle center, protuberance electrode 22 is in figure shown in black part.With first embodiment the difference is that it has a positioning through hole 32, realize locking the position of support chip 13b Yu lamp holder body 11b for penetrating shop bolt 17 after having combined.The side screwing in the disalignment, bottom of the part of lamp socket is provided with an open notch 31, is used for inserting support chip 13b, and the axonometric chart of the support chip 13b that the second embodiment uses is as shown in figure 12；Birds-eye view is as shown in figure 13；The bottom view seen from bottom to top is as shown in figure 14；As viewed from the rearview that lamp socket rear is forward is as shown in figure 15；It there is a boss ridge 33 be mechanically connected two, left and right contact chip in order to the fracture gap crossing centre and make one.The shaft core position of support chip 13b is made way for the axle center entity part of lamp holder body 11b and is taken and pass through when having penetrating groove as depicted in order to insert.The right and left of support chip 13b has wavy concavo-convex its edge of tooth 35 arranged by the requirement shape forming continuous thread to realize being mechanically connected with lamp socket for the threaded metal inwall engaging in lamp socket.Boss ridge 33 there is fluting 34 as depicted insert, in order to what make the open notch 31 arranged on support chip 13b traverse lamp holder body more deep, the mechanical bond realizing assembly in lamp holder body 11b.The positioning through hole 32 on support chip 13b open notch 31 on fully-inserted lamp holder body 11b, until forming concentric relation with the positioning through hole 32 on lamp holder body 11b after the end, now may be inserted into shop bolt 17 and completes fixing between the two.Insert mutual alignment between both shop bolt lockable lamp holder body and support chip so that it is become the assembly that is rigidly connected.Adopt the second embodiment and complete fixing after assembly axonometric chart as shown in figure 16.

Second embodiment can alternatively be used insulating shield 16, uses the explosive view of assembly of insulating shield 16 as shown in figure 17.Figure 18 is its overall structure completing to combine.It can screw in smoothly and realize fixing and electrical connection in the screw lamp holder corresponding with himself model.

Lamp holder body and support chip can use pottery, glass etc. to have the heat-resisting rigid insulating material of certain mechanical strength to make, and can also adopt the hard plastic injection molding manufacture of low cost on the small power LED lamp that operating temperature is not high.Insulating shield is used as such as flexible insulating material manufactures such as silica gel PU foamed plastics except available above-mentioned material, to attractive in appearance and reduce cost.

Lamp holder body screws in the part of lamp socket and even can directly adopt the fiberglass resin printing board PCB with certain thickness and mechanical strength to make, the overall dimensions of its screw-in part is cut into and the lamp holder body of corresponding lamp socket highly compatible, cross section and wavy contact outer surface adopt metallization via technique to be sprayed with conductive metal film coating and form screw thread electrode and bottom central electrode, coordinate rigid insulation support chip can screw in the screw lamp holder of corresponding model.Support chip can also adopt printed circuit board (PCB) manufacture.The orthogonal ultrathin lamp header structure that this direct employing printed circuit board (PCB) manufactures is simple, and cost is low, it is not necessary to bonding wire, and artificial link is few, saves metal material, has promotional value.

Both the above embodiment may be respectively used for the conventional screw sockets such as design E27, E40 and E14, and different is only that overall dimensions is different, and structural principle is identical.Although this utility model is described using E27 lamp holder as demonstration sample, but its scope of application is not only in E27 lamp holder model.Except common E27 lamp holder remaining as E14 lamp holder and E40 lamp holder to such an extent as in the screw socket of other various models such as GBT1406.1-2008 standard the screw socket of the various models of defined be equally applicable this utility model lamp holder and design with the ultrathin realizing each model screw socket, the difference of different model is that overall dimensions is different, but structure is identical with principle, every kind of lamp holder is by support chip and two parts compositions of lamp holder body, both when manufacturing packed and transported separable, during use, vertical junction merges and is fixed together and forms the finished goods of described lamp holder.The lamp holder of every kind of model all can screw in and realize in the screw lamp holder corresponding model being mechanically connected and electrical connection.

Both examples above is only in order to illustrate structure of the present utility model and principle; it is not used to restriction this utility model; those skilled in the art can the profile of apparent change lamp holder body and support chip and manufacture between both material transitions lock mode or set up the 3rd parts insulating shield etc. also within protection domain of the present utility model; as can be the boss ridge being originally arranged on support chip be arranged on lamp holder body; notch is opened on support chip simultaneously, or fixed form is fixed etc. by the fixing elastic pawl fixture that changes to of shop bolt.

Claims (5)

1. the ultra-thin screw socket of orthogonal grafting, is characterized in that: described lamp holder is made up of lamp holder body and two parts of support chip.

2. the ultra-thin screw socket of orthogonal grafting according to claim 1, is characterized in that: described lamp holder body and support chip are provided with locking device, lamp holder body and support chip and are rigidly connected by locking device locking mutual alignment formation.

3. the ultra-thin screw socket of orthogonal grafting according to claim 1, is characterized in that: support chip or lamp holder body adopt hard insulation manufacture.

4. the ultra-thin screw socket of orthogonal grafting according to claim 1, is characterized in that: the marginal surface of support chip and lamp holder body has the wavelike structure that the profile of the threaded interior walls with lamp socket matches, and makes the engageable lamp socket screwing in corresponding model of described lamp holder.

5. the ultra-thin screw socket of orthogonal grafting according to claim 1, is characterized in that: the wavy outer wall surface of lamp holder body or support chip is respectively arranged with an electrode with bottom shaft core position and connects with bulb inside conductor；Between electrode insulated from each other, bulb is by the electrical connection of this electrode and lamp socket.