CN208281841U

CN208281841U - A kind of LED straight lamp

Info

Publication number: CN208281841U
Application number: CN201721755096.8U
Authority: CN
Inventors: 江涛
Original assignee: Jiaxing Super Lighting Electric Appliance Co Ltd
Current assignee: Jiaxing Super Lighting Electric Appliance Co Ltd
Priority date: 2014-09-28
Filing date: 2015-09-25
Publication date: 2018-12-25
Anticipated expiration: 2025-09-02
Also published as: CN207814981U; CN208281815U; CN207716127U

Abstract

A kind of LED straight lamp, two lamp caps including a fluorescent tube and fixed to the lamp tube ends, it is characterized in that, the LED straight lamp further includes a circuit board assemblies, the circuit board assemblies have a long circuit board and a short circuit board, there is power supply mould group on the short circuit board, the length of the long circuit board is greater than the length of the short circuit board, the long circuit board is set in the fluorescent tube, the lamp cap is metallic lamp holder, the lamp cap is equipped with the hollow conductive pin for connecting external power supply, and insulator is arranged in the lamp cap at hollow conductive pin.

Description

A kind of LED straight lamp

The present utility model application be submission on March 27th, 2017 Patent Office of the People's Republic of China, application No. is 201590001018.1, it is new The divisional application of type entitled " LED straight lamp ".

Technical field

The utility model relates to field of illuminating device, and in particular to a kind of LED straight lamp.

Background technique

LED lighting technology it is positive fast-developing and instead of traditional incandescent lamp and fluorescent lamp.Compared to being filled with indifferent gas For the fluorescent lamp of body and mercury, LED straight lamp need not filling mercury.Therefore, it is shone in various conventional fluorescent bulbs and fluorescent tube etc. In the lighting system of household or workplace that bright option is dominated, LED straight lamp is it is hardly surprising that be increasingly becoming people's height The illumination option of expectation.The advantages of LED straight lamp the durability comprising promotion and longer service life and compared with low power consuming.Therefore, After considering all factors, LED straight lamp will be the illumination option of escapable cost.

Existing LED straight lamp generally comprise power supply, fluorescent tube, in fluorescent tube and have light source light source circuit board, with And the lamp cap set on lamp tube ends, power supply by light source circuit board be electrically connected light source, between lamp cap and fluorescent tube by hot melt adhesive, Silica gel or white glue are adhesively fixed together.However, existing LED straight lamp still has following a few class problems to need to solve:

1, assume the lamp cap for having known LED straight lamp, using Plastic lamp socket, power supply is located in lamp cap, and in power supply Component with fever, such as resistance, inductance or driving IC, if the heat dissipation performance of lamp cap is bad, after long-time use, Be easy accelerate component aging, finally fluorescent tube is made to fail, therefore, how to solve the heat dissipation performance of lamp cap, be improve the service life and One of key of quality.

2, the lamp cap for having known LED straight lamp is assumed, with insulation tube and the metal portion being set on insulation tube, insulation Pipe is socketed in the end of fluorescent tube, and metal portion integral coating, with this, can promote the certain heat dissipation performance of lamp cap on insulation tube, but It is this metal portion, durings molding or assembly etc., the process is more complicated, affects production efficiency, and this integral coating The metal portion of formula, material cost is high, improves the production cost of product, is unfavorable for market competition.

3, assume there is known LED straight lamp, power supply includes power supply circuit board and power supply mould group, the electronics of power supply mould group There are unreasonable places in component layout, thus there are problems that reasonably arranging power supply mould group, may cause space The problems such as utilization rate is low.

4, assume there is known LED straight lamp, the outer diameter of lamp cap is greater than the outer diameter of fluorescent tube, and the outer diameter and lamp of lamp cap The outer diameter difference of pipe is larger.When packaging, since packaging support is typically also the box body being in the form of a column, to can only be connect with lamp cap Touching causes during transportation, the connecting portion of lamp cap and fluorescent tube is easily broken so that lamp cap becomes unique stress point.It discloses As an example of the straight lamp of the U.S. patent application case of Publication No. US2014226320A is.Furthermore Publication No. The revealed straight lamp of Chinese patent application case of CN102518972 is another example.For this part, Publication No. US The U.S. patent application case of 20100103673A discloses a kind of LED straight lamp, and fluorescent tube is glass lamp, and lamp cap is filled in Sealing in glass lamp.But the both ends of such fluorescent tube are born internal stress and are relatively held when both ends are by outer plus strength Easily rupturable, this will lead to product defect and quality problem.

In addition to this, for LED straight lamp, product cost etc. is reduced, is all in need of consideration in design, production Problem.

In view of the above problem, the utility model set forth below and embodiment.

Utility model content

In view of this, the present invention provides a kind of LED straight lamp, help to support its power supply mould group.The utility model Other beneficial effects and advantage and unconventional optional implementation will be embodied and illustrate in conjunction with specific embodiment.

To achieve the above object, one aspect according to the present utility model provides a kind of LED straight lamp, including a lamp Pipe and two lamp caps fixed to the lamp tube ends, which is characterized in that

The LED straight lamp further includes a circuit board assemblies, and the circuit board assemblies have a long circuit board and a short electricity Road plate has power supply mould group on the short circuit board, and the length of the long circuit board is greater than the length of the short circuit board, described Long circuit board is set in the fluorescent tube,

The lamp cap is metallic lamp holder, and the lamp cap is equipped with the hollow conductive pin for connecting external power supply, the lamp Insulator is arranged in head at hollow conductive pin.

Optionally, at least partly electronic component of the power supply mould group of the LED straight lamp is arranged on long circuit board.

Optionally, the fluorescent tube includes body region and two end regions positioned at body region both ends, and the lamp sleeve is set to institute State end region, the difference of the lamp cap outer diameter and the body region outer diameter is positive and negative 1mm.

Optionally, the power supply mould group includes LED drive module, and the LED drive module includes LED module, described LED module contains at least two LED unit, the anode of the anode coupling LED module of each LED unit, and its negative terminal The negative terminal of LED module is coupled, each LED unit contains at least two LED, and the LED in the same LED unit, which connects, to be connected It connects.

Optionally, the LED module includes three LED units.

Optionally, the lamp cap is equipped with the opening for heat dissipation.

Optionally, the long circuit board is LED lamp panel, and the LED lamp panel is equipped with LED light source, and the LED lamp panel includes With the line layer and dielectric layer arranged in a stacked, the LED light source and the line layer electrical communication.

Optionally, the LED lamp panel further includes a circuit protecting layer, and the circuit protecting layer setting has in LED lamp panel The side of light source.

Optionally, the length of the long circuit board is 800 millimeters to 2800 millimeters.

Optionally, the LED straight lamp further includes bonding agent piece, LED lamp panel insulation film and light source film, the LED Lamp plate is pasted on the inner peripheral surface of the fluorescent tube by the bonding agent piece, the insulation film be applied to the LED lamp panel towards On the surface of the light source, the light source film is applied to the surface of the light source.

Optionally, the insulating cement on piece reserves through-hole corresponding with LED light source is accommodated.

Optionally, the fluorescent tube uses glass material.

Optionally, the size of the lamp cap of the lamp tube ends is identical.

The utility model also provides a kind of LED straight lamp, two lamps including a fluorescent tube and fixed to the lamp tube ends Head, which is characterized in that

The LED straight lamp further includes a circuit board assemblies, and the circuit board assemblies have a long circuit board and a short electricity Road plate has power supply mould group on the short circuit board, and the length of the long circuit board is greater than the length of the short circuit board, described Long circuit board is set in the fluorescent tube, and at least partly electronic component of the power supply mould group of the LED straight lamp is arranged in the length On circuit board, the long circuit board is LED lamp panel, and the LED lamp panel is equipped with LED light source, and the LED lamp panel includes route Layer,

The fluorescent tube uses glass material,

The lamp cap is equipped with the opening for heat dissipation, and the lamp cap is metallic lamp holder, and the lamp cap is equipped with for connecting Insulator is arranged in the hollow conductive pin of external power supply, the lamp cap at hollow conductive pin.

Optionally, the LED module includes three LED units.

Optionally, the insulating cement on piece reserves the through-hole for accommodating light source.

Optionally, the size of the lamp cap of the lamp tube ends is identical.

Optionally, the LED lamp panel further includes dielectric layer, and the line layer and the dielectric layer arrange in a stacked, The LED light source and the line layer electrical communication.

The lamp cap is equipped with the hollow conductive pin for connecting external power supply；

Optionally, the lamp cap includes heat-conducting part, and the heat-conducting part is connected to the end of the fluorescent tube by gluing.

Optionally, the lamp cap includes heat-conducting part, and the heat-conducting part is adhered to the end of the fluorescent tube by silica gel.

Optionally, an accommodating space is formed between the inner peripheral surface of the heat-conducting part and the outer peripheral surface of the fluorescent tube, it is described Glue is filled in the accommodating space.

Optionally, an accommodating space is formed between the inner peripheral surface of the heat-conducting part and the outer peripheral surface of the fluorescent tube, it is described Silicone filler is in the accommodating space.

Optionally, the lamp cap is equipped with the opening for heat dissipation.

Optionally, the LED module includes three LED units.

Compared with prior art, the technical solution of the utility model has the following advantages that (one or combinations thereof): lamp cap is Metallic lamp holder, insulator is arranged in lamp cap at hollow conductive pin, with high pressure resistant.The power supply mould group of LED straight lamp is at least partly Electronic component is arranged on long circuit board, with this, can power supply mould group in reasonable layout L ED straight lamp, to optimize lamp cap Design.The difference of lamp cap outer diameter and body region outer diameter is positive and negative 1mm, in this way, during transportation, packaging support will not only connect Touch lamp cap, but lamp cap and fluorescent tube can be contacted simultaneously so that whole branch LED straight lamp uniform force, without make lamp cap at For unique stress point, the position for avoiding lamp cap from connecting with fluorescent tube end region is concentrated due to stress to be ruptured, improve product Quality, and have both beautiful effect.Lamp cap, which is equipped with, makes way for the power supply mould group inside lamp cap whereby for the opening of heat dissipation The heat of generation can be dispersed without will cause in the condition of high temperature inside lamp cap, under the reliability to avoid lamp cap internal element Drop.The whole lighting efficiency of straight lamp can be improved.

Detailed description of the invention

Fig. 1 is a perspective view, shows the LED straight lamp of an embodiment of the present invention；

Figure 1A is a perspective view, shows the lamp cap tool of the lamp tube ends of the LED straight lamp of another embodiment of the utility model There are different sizes；

Fig. 2 is a stereogram exploded view, shows the LED straight lamp of Fig. 1；

Fig. 3 is a perspective view, shows the front and top of the lamp cap of the LED straight lamp of an embodiment of the present invention；

Fig. 4 is a perspective view, shows the bottom of the lamp cap of the LED straight lamp of Fig. 3；

Fig. 5 is a section plan, shows the connection of the lamp cap and fluorescent tube of the LED straight lamp of an embodiment of the present invention Part；

Fig. 6 is a three-dimensional cutaway view, shows the all-plastic lamp cap of the LED straight lamp of another embodiment of the utility model；

Fig. 7 is a perspective view, shows that the all-plastic lamp cap of the LED straight lamp of another embodiment of the utility model and fluorescent tube are logical Induction coil is crossed to be bonded together；

Fig. 8 is a perspective view, shows the insulation tube of the all-plastic lamp cap of the LED straight lamp of another embodiment of the utility model With a support portion and a protrusion；

Fig. 9 is a section plan, shows insulation tube and magnetic conductive metal that the all-plastic lamp cap in Fig. 8 is intercepted along X-X line The internal structure of part；

Figure 10 is a section plan, after showing that the insulation tube of the lamp cap of Fig. 8 and fluorescent tube combine, along fluorescent tube axial direction Structure, wherein magnetic conductive metal part is circular ring structure；

Figure 11 is a section plan, shows the end construction of fluorescent tube in an embodiment of the present invention LED straight lamp；

Figure 12 is a section plan, shows that the LED lamp panel of the LED straight lamp of an embodiment of the present invention is bendable Circuit board and its end get over the transition region of fluorescent tube and are welded to connect with the output end of power supply；

Figure 13 is a section plan, shows the bendable electricity of the LED lamp panel of an embodiment of the present invention LED straight lamp Road plate has double-layer structure；

Figure 14 is a perspective view, shows the bendable circuit of the LED lamp panel of another embodiment LED straight lamp of the utility model The printed circuit board of plate and power supply is combined into a circuit board assemblies；

Figure 15 is a perspective view, shows another configuration of the circuit board assemblies of Figure 11；

Figure 16 is a perspective view, shows the power supply in an embodiment of the present invention LED straight lamp；

Figure 17 is a perspective view, is shown in another embodiment LED straight lamp of the utility model, the circuit board of power supply is vertically It is soldered on the rigid circuit board of aluminum；

Figure 18 is a perspective view, is shown in another embodiment of the utility model, and the flexible circuit board of LED lamp panel has double-deck Conductive circuit layer；

Figure 19 is the block diagram according to the exemplary L ED lamp of some embodiments of the utility model；

Figure 20 is the schematic diagram according to the LED module of some embodiments of the utility model；

Figure 21 is the schematic diagram according to the LED module of some embodiments of the utility model；

Figure 22 is the plan view according to the circuit layout of the LED module of some embodiments of the utility model；

Figure 23 is the plan view according to the circuit layout of the LED module of some embodiments of the utility model.

Specific embodiment

Present disclose provides a kind of new LED straight lamps.The disclosure is described in the following embodiments with reference to the accompanying drawings.This The following description of the various embodiments of the utility model presented in text is only used for diagram and exemplary purpose, without being intended to It is exclusive or be limited to exact form disclosed.These example embodiments are only example, and are not needed provided herein Many embodiments of details and variation are possible.It should again be emphasized that present disclose provides the details of alternative exemplary, still The display of these substitutions is not exclusive.Moreover, the consistent of any details between various examples should be understood to need this The details of sample, it is unpractiaca for displaying each possible variation for each feature described herein after all.Determining this It should refer to the record in claims when the requirement of utility model.

In the accompanying drawings, the size and relative size of component can amplify in order to clear.In entire attached drawing, identical attached drawing Label refers to identical element.

Technical term used herein is just for the sake of description specific embodiment, and without being intended to limitation, this is practical new Type.In term as used herein, singular " one (a) " or " one (an) " are intended to also include plural form, unless on Hereafter clearly dictate otherwise.In term as used herein, term "and/or" includes one or more associated listed Either term and all combinations in term, and "/" can be abbreviated as.

It should be understood that although may have been used term first, second, third, etc. herein describe various elements, component, Region, layer or step, but these elements, component, region, layer and/or step should not be limited by these terms.Unless context It is further noted that otherwise these terms are only used to by an element, component, area, floor or step and another element, component, region, floor Or step distinguishes, such as naming convention.Therefore, without departing from the introduction of the utility model, exist below First element, component, area, floor or the step discussed in a chapters and sections in specification in another chapters and sections of specification or can be weighed Benefit is named as second element, component, region, layer or step in requiring.In addition, in some cases, even if in the description Without using the Terminologies such as " first ", " second ", but the term may be still referred to as " first " or " in detail in the claims Two " to be distinguished from each other to the different elements of record.

It will also be appreciated that these terms are enumerated recorded when using term " includes " or "comprising" in the description Feature, region, integer, step, operation, the presence of element and/or component, but be not excluded for one or more of the other feature, Region, integer, step, operation, the presence or addition of element and/or component.

It should be understood that when element is referred to as " connection " or when " coupled " to another element or another element "upper", which can To be directly connected or coupled on another element or another element, or may exist intermediary element.On the contrary, when element is referred to as When " being directly connected to " or " directly coupling " arrives another element, intermediary element is not present.For describe the relationship between element its Its word should in a similar way (for example, " between " with " directly between ", " adjacent " and " direct neighbor " etc.) explain. However, terms used herein " contact " refer to directly contact (that is, touching), unless context also points out.

Embodiment described herein will be described by ideal schematic diagram reference plane figure and/or cross-sectional view.Therefore, Example view may depend on manufacturing technology and/or tolerance is modified.Therefore, the disclosed embodiments are not limited in the view It is those of shown, and it is included in the modification of the configuration formed on the basis of manufacturing process.Therefore, exemplary region can in figure Shape with illustrative nature, and region shown in the figure exemplary can enumerate the shape in the region of element, but this is practical new The various aspects of type are not limited to this.

Herein can be used spatially relative term, such as " ... under ", " lower section ", "lower", " top ", "upper" in order to The relationship of an elements or features and another elements or features shown in the drawings is described.It will be appreciated that except being retouched in attached drawing Except the orientation drawn, spatially relative term is intended to cover the different orientation of device in use or operation.For example, if in attached drawing Device be reversed, then being described as be in the elements or features of other elements or features " below " or " under " will be oriented to In other elements or features " top ".Therefore, term " lower section " can cover above and below orientation.Described device can be with it Its mode is orientated and (is rotated by 90 ° or in other orientations), and the opposite description in space used herein all should be solved correspondingly It releases.

The term used when herein by reference to orientation, layout, position, shape, size, quantity or other measurements such as " identical ", " equal ", " plane " or " coplanar " is not necessarily mean that lucky same orientation, layout, position, shape, size, quantity or other Measurement, but it is intended to cover the almost the same orientation within the scope of the acceptable variation that for example may cause due to manufacturing process, cloth Office, position, shape, size, quantity or other measurements.Term " basic " can be used to reflect the meaning herein.

Term such as "about" or "approximately" can reflect only in relatively small mode and/or not significantly change the behaviour of certain elements Make, size, orientation or the layout of the form variation of function or structure.For example, can cover for example from the range of " about 0.1 to about 1 " Near 0.1 deviation 0%-5% and near 1 deviation 0% to 5% range, especially if this deviation maintain and institute The identical influence of column range.

Unless otherwise defined, all terms (including technical and scientific term) used herein have field described in the disclosure The normally understood identical meaning of those of ordinary skill.It should also be understood that term, such as those are answered defined in the common dictionary When being interpreted as having and their consistent meanings of meaning in the context of related fields and/or the application, and do not answer It is explained with meaning that is Utopian or excessively formalizing, unless being clearly so defined herein.

As used herein, the item for being described as " being electrically connected " is configured so that electric signal can be transmitted to from one Another.Therefore, passive isolation component is physically connected to (for example, the prepreg layer of printed circuit board, insulating binder connect Two devices, insulating bottom layer filler or mold layer etc.) passive conductive component (for example, conducting wire, pad, internal electric route etc.) It is not connected electrically to the component.In addition, the item " being directly electrically connected " each other passes through one or more passive elements, such as lead The electrical connection such as line, pad, internal electric route, resistance.In this way, directly electrical connection component is not comprising all by active component The component being electrically connected such as transistor or diode.

It is described as being thermally connected or the component of thermal communication is arranged into so that heat can follow the path between component, to permit Perhaps heat is transmitted to second component from first component.Simply because a part that two components are identity unit or plate can not make it Be thermally connected.Generally, thermally conductive or be directly connected to other thermally conductive or generating component component and (or connected by intermediate thermal conductivity component It is connected to these components or so close to a large amount of transmitting for alloing heat) it will be described as being thermally connected to these components, or and this A little component thermal communications.In contrast, two components of heat insulator are not described as being connected thermally to one another or thermal communication between, Wherein the material significantly prevents the heat transmitting between two components, or only allows subsidiary heat transmitting.Term " thermally conductive " is simultaneously uncomfortable For providing subsidiary thermally conductive any material, and it is intended to the good conductor or known with for passing that finger is typically considered heat Pass the material of the purposes of heat, or the component with the heating conduction similar with these materials.

Fig. 1 and Fig. 2 are please referred to, the utility model provides a kind of LED straight lamp in an embodiment comprising: a fluorescent tube 1, one it is set to the LED lamp panel 2 in fluorescent tube 1, and is respectively arranged on the lamp cap 3 at 1 both ends of fluorescent tube.Fluorescent tube 1 can use plastics fluorescent tube Or glass lamp, the size of both ends lamp cap 3 are identical or different.Figure 1A is please referred to, in some embodiments, one end lamp The size of head can be about the 30% to about 80% of other end lamp cap size.

Referring to figure 2. with Fig. 8, the glass lamp of LED straight lamp proposed in an embodiment of the present invention has knot Structure strengthens end, is described as follows.Glass system fluorescent tube 1 includes body region 102, two end regions for being located at 102 both ends of body region 101 (or only end regions 101) and the lamp cap 3 being sheathed on outside end region 101 respectively.The outer diameter of at least one end region 101 is less than The outer diameter of body region 102.In the embodiment of Fig. 2 and Fig. 5, the outer diameter of two end regions 101 is respectively less than the outer of body region 102 Diameter.In addition, the section of end region 101 is parallel with the section of body region 102.Specifically, the both ends of glass system fluorescent tube 1 pass through reinforcing Processing, end region 101 form reinforced structure.In certain embodiments, lamp cap 3 is respectively fitted on the end region 101 after strengthening, and 3 outer diameter of lamp cap and the difference of 102 outer diameter of lamp tube main body area become smaller, or even completely equal.For example, 3 outer diameter of lamp cap can be with body region 102 outer diameters are identical or essentially identical, so that will not have the gap generation between lamp cap 3 and body region 102.In this way, in transportational process In, packaging support will not only contact lamp cap 3, but lamp cap 3 and fluorescent tube 1 can be contacted simultaneously so that whole branch LED straight lamp by Power is uniform, without make lamp cap 3 become unique stress point, the position for avoiding lamp cap 3 from connecting with fluorescent tube end region 101 due to Stress concentration ruptures.Therefore, the quality of product is improved, and has both beautiful effect.

In one embodiment, 3 outer diameter of lamp cap and 102 outer diameter of body region are of substantially equal.These diameter tolerances can be for example positive and negative In 0.2mm (millimeter), or positive and negative 1.0mm is reached in some cases.For typical products application, according to the thickness of lamp cap 3 It spends, the difference range between 102 outer diameter of end region 101 and body region can be about 1mm to about 10mm.In some embodiments, Difference range between 102 outer diameter of end region 101 and body region can be relaxed to about 2mm to about 7mm.

Referring to figure 3. with Fig. 4, in an embodiment of the present invention, the lamp cap 3 of LED straight lamp includes an insulation tube 302, One is sheathed on the heat-conducting part 303 on insulation tube 302, and the hollow conductive pin 301 of two on insulation tube 302.It is described to lead Hot portion 303 can be the becket of a tubulose.

Referring to figure 5., in an embodiment, the insulation tube 302 of lamp cap 3 is stretched out towards the one of fluorescent tube 1 in one end of heat-conducting part 303 End, and pass through the end that a hot melt adhesive 6 is adhered to fluorescent tube 1.Further, lamp cap 3 extends to transition region by heat-conducting part 303 103.In some embodiments, heat-conducting part 303 is closely connect with transition region 103, so that heat-conducting part 303 and fluorescent tube 1 pass through hot melt When glue 6 is bonded, the body region 102 that hot melt adhesive 6 overflows lamp cap 3 and remains to fluorescent tube 1 is not had.In addition, insulation tube 302 is towards lamp One end of pipe 1 does not extend to transition region 103, i.e., keeps certain between the one end of insulation tube 302 towards fluorescent tube and transition region 103 Interval.In the present embodiment, the material of insulation tube 302 is not limited using materials such as plastics, ceramics, mainly under general state It is not the good conductor of electricity.

Further, accommodating sky is formed between the inner peripheral surface of 303 extension of heat-conducting part and the outer peripheral surface of fluorescent tube 1 Between, hot melt adhesive 6 is filled in the accommodating space, the position as shown in dotted line B in Fig. 5.In other words, hot melt adhesive 6 can be such as the next It sets and is filled into accommodating space, at this location first virtual plane (such as in Fig. 5 dotted line B drawn by the mistake axially vertical with fluorescent tube 1 Plane) heat-conducting part 303, the outer peripheral surface of hot melt adhesive 6 and fluorescent tube 1 can be passed through.6 coating thickness of hot melt adhesive can be about 0.2mm extremely About 0.5mm.In one embodiment, hot melt adhesive 6 solidifies after expanding, to contact with fluorescent tube 1 and lamp cap 3 is fixed on fluorescent tube 1.Transition region 103 causes have difference in height between the outer peripheral surface of both end region 101 and body region 102, to avoid hot melt adhesive It spills on 102 part of body region of fluorescent tube, removes subsequent manual wipping process from, improve the yield of LED straight lamp.By outer Portion's heating equipment electrically will be applied to heat-conducting part 303, receive heat from heat-conducting part 303 to heat hot melt adhesive 6, expand hot melt adhesive 6 After cool and solidify, so that lamp cap 3 is bonded on fluorescent tube 1.

Referring to figure 5., in an embodiment, the insulation tube 302 of lamp cap 3 includes the first pipe portion to connect along the axial direction of fluorescent tube 1 Outer diameter of the outer diameter less than the first pipe portion 302a of 302a and the second pipe portion 302b, the second pipe portion 302b, the outer diameter difference of two pipes Range is 0.15mm to 0.3mm.Heat-conducting part 303 is on the outer peripheral surface of the second pipe portion 302b.The outer surface of heat-conducting part 303 and the The outer peripheral surface of one pipe portion 302a is coplanar or is substantially flush.The tool for example, heat-conducting part 303 and the first pipe portion 302a pass through There is substantially homogeneous outer dia.As a result, lamp cap 3 and entire LED straight lamp appearance can be smooth and can have base This uniform tube outer surface, so that entire LED straight lamp uniform force in packaging, transportational process.In one embodiment, it leads Hot portion 303 is about 1:2.5 to about 1:5 along the length of lamp cap axial direction and the axial length ratio of insulation tube 302.

In one embodiment, in order to ensure the fastness being bonded between lamp cap 3 and fluorescent tube 1, at least portion the second pipe portion 302b Divide and be sheathed on outside fluorescent tube 1, accommodating space further includes the inner surface of the second pipe portion 302b and the 101 appearance bread of end region of fluorescent tube 1 The space enclosed.Hot melt adhesive 6 have the end region 101 of the inner surface and fluorescent tube 1 that are partially filled in the second pipe portion 302b outer surface it Between overlay region (in Fig. 5 shown in dotted line A) in.For example, hot melt adhesive 6 can be filled in the accommodating space in following position, It can be managed by heat-conducting part 303, second at the position with the second axially vertical virtual plane of fluorescent tube 1 (as shown in dotted line A in Fig. 5) Portion 302b, hot melt adhesive 6 and end region 101.

Further, for the hot melt adhesive 6 of the second pipe portion 302b inner surface, the second pipe portion 302b is interposed between hot melt adhesive 6 Heat is likely to reduced between heat-conducting part 303 from the conduction of heat-conducting part 303 to hot melt adhesive 6.To solve this problem, referring to Fig. 4, one In a embodiment, multiple edges are set in the one end (one end i.e. far from the first pipe portion 302a) of the second pipe portion 302b towards fluorescent tube 1 The notch 302c of circumferential array.These notches 302c helps to increase the contact area of heat-conducting part 303 and hot melt adhesive 6, in favor of Heat is quickly conducted from heat-conducting part 303 to hot melt adhesive 6, accelerates the solidification process of hot melt adhesive 6.Meanwhile when user touch it is thermally conductive When portion 303, due to the insulating effect of hot melt adhesive 6 between heat-conducting part 303 and fluorescent tube 1, will not have because of fluorescent tube 1 damaged and get an electric shock.

Heat-conducting part 303 can be made of various Heat Conduction Materials.Heat-conducting part 303 can be sheet metal, such as aluminium alloy.It is thermally conductive Portion 303 is in a tubular form or cyclic annular, is set in outside the second pipe portion 302b.Insulation tube 302 can be made of various insulating materials, but There is low thermal conductivity in some embodiments, conduct to avoid heat to the power supply mould group inside lamp cap 3, influence power supply mould group Performance.In one embodiment, insulation tube 302 is plastic tube.

Lamp cap 3 can be designed to there is other kinds of structure or comprising other elements.Fig. 6 is please referred to, it is practical at this In novel another embodiment, lamp cap 3 further includes a magnetic conductive metal part 9 in addition to including insulation tube 302, but does not include above-mentioned lead Hot portion.Magnetic conductive metal part 9 is installed on the inner peripheral surface of insulation tube 302, and is therefore made between insulation tube 302 and fluorescent tube 1 It radially partly overlaps with fluorescent tube 1.In the present embodiment, entire magnetic conductive metal part 9 is all located in insulation tube 302, and hot melt adhesive 6 applies (surface of the magnetic conductive metal part 9 towards fluorescent tube 1) is overlying on the inner surface of magnetic conductive metal part 9, and Nian Jie with the outer peripheral surface of fluorescent tube 1.

Fig. 7 is please referred to, the insulation tube 302 of lamp cap 3 is inserted in outside one by the LED straight lamp of the present embodiment when manufacture In heating equipment, this outside heating equipment is an induction coil 11 in some embodiments, so that induction coil 11 and magnetic conduction Metalwork 9 along insulation tube 302 to radially extend direction relative to each other or adjacent.Induction coil 11 is powered, induction coil 11 is logical Electromagnetic field is formed after electricity, electromagnetic field is converted to electric current after magnetic conductive metal part 9, so that magnetic conductive metal part 9 generates heat.From magnetic conduction The heat of metalwork 9 is conducted to hot melt adhesive 6, and hot melt adhesive 6 is expanded and flowed after absorbing heat, makes hot melt adhesive 6 after cooling Solidification, to realize the purpose that lamp cap 3 is fixed on to fluorescent tube 1.The main material of induction coil 11 can be for red copper and by width about 5mm The annulus being curled into the plain conductor of about 6mm, for the diameter of annulus about 30mm to about 35mm, annulus is straight Diameter is slightly larger than the outer diameter of lamp cap 3.Since the outer diameter of lamp cap 3 is identical to the outer diameter of fluorescent tube 1, so the outer diameter of lamp cap 3 will depend on The outer diameter of fluorescent tube 1 and change, thus the induction coil 11 of different-diameter can be used in the fluorescent tube of different model.For example, T12 fluorescent tube Diameter be 38.1mm, the diameter of T10 fluorescent tube is 31.8mm, and the diameter of T8 fluorescent tube is 25.4mm, and the diameter of T5 fluorescent tube is The diameter of 16mm, T4 fluorescent tube is 12.7mm, and the diameter of T2 fluorescent tube is 6.4mm.

In one embodiment, induction coil 11 can be made fixed, allow fluorescent tube 1 and lamp cap 3 being moved to induction coil 11 In, so that hot melt adhesive 6 is expanded and is flowed after being heated, and after cooling when again detaching lamp cap 3 from induction coil 11 Solidification.Optionally, fluorescent tube 1 and lamp cap 3 can be made fixed, allow for induction coil 11 to be moved into surround lamp cap 3, so that hot melt Glue 6 is expanded and is flowed after being heated, and is solidified after cooling when again detaching lamp cap 3 from induction coil 11.One implements In example, the external heating equipment of magnetic conductive metal part 9 can use the device with a plurality of induction coils 11, and at heating It is during reason, external heating equipment is mobile relative to lamp cap 3 and fluorescent tube 1.In this way, after the completion of heating, outside is added Hot equipment is detached from lamp cap 3.However, the length due to fluorescent tube 1 is much larger than the length of lamp cap 3, even in some specific uses The length of fluorescent tube 1 is up to 240cm or more, therefore in the case where fluorescent tube 1 and lamp cap 3 interlock, and induction coil 11 and lamp cap 3 are each other When be pumped into or detach relatively with foregoing front-rear direction, it is likely that lamp cap 3 can be damaged because of the error of position With being connected and fixed for fluorescent tube 1.

Fig. 6 is please referred to, insulation tube 302 is further divided into two parts, i.e. the first pipe portion 302d and the second pipe portion 302e, Second pipe portion 302e is remainder.In order to preferably support magnetic conductive metal part 9, it is used to support the of magnetic conductive metal part 9 The internal diameter of one pipe portion 302d is greater than the internal diameter of the second pipe portion 302e without magnetic conductive metal part 9, and in the first pipe portion 302d Step structure is formed with the second junction pipe portion 302e.By this method, axial one end of magnetic conductive metal part 9 acts against step structure On, and make the inner surface of entire lamp cap concordant.In addition, magnetic conductive metal part 9 can be various shape, such as in circumferential array Sheet or tubulose etc., magnetic conductive metal part 9 and insulation tube 302 are coaxially arranged herein.

Fig. 8 and Fig. 9 are please referred to, insulation tube can also be formed on the inner peripheral surface of insulation tube 302 with inside projection Support portion 313, so that magnetic conductive metal part 9 acts against the upper limb of support portion 313 in the axial direction.In some embodiments, support portion 313 along insulation tube 302 it is radial with a thickness of 1mm between 2mm.Insulation tube 302 can also be formed in insulation tube 302 With the protrusion 310 of inside projection on inner peripheral surface, so that magnetic conductive metal part 9 acts against the lateral margin of protrusion 310 radially, And it is spaced apart between the outer peripheral surface of magnetic conductive metal part 9 and the inner peripheral surface of insulation tube 302 with certain interval.310 edge of protrusion The radial thickness of insulation tube 302 is less than the support portion 313 thickness radial along insulation tube 302, and in some embodiments, It is 0.2mm to 1mm.

As shown in figure 9, protrusion 310 is connected with support portion 313 along axial, magnetic conductive metal part 9 acts against branch in the axial direction The upper limb of support part 313 acts against the lateral margin of protrusion 310 radially simultaneously, leads so that at least part protrusion 310 is located at Between magnetic metalwork 9 and insulation tube 302.Protrusion 310 can be along 302 circumferential array of insulation tube at circular structure.Alternatively, Protrusion 310 is the multiple convex blocks arranged on the inner peripheral surface of insulation tube 302, and the arrangement of convex block can be along insulation tube 302 The arrangement of circumferential surface equidistant intervals or non-equally spaced arrangement, as long as outer surface and the insulation tube of magnetic conductive metal part 9 can be made The contact area of 302 inner peripheral surface is reduced, while can have the function of holding hot melt adhesive 6 again.

In other embodiments, lamp cap 3 can be made into all-metal, need to add in the lower part of hollow conductive pin at this time One insulator, with high voltage withstanding.

Referring to figure 2., 3,12, in some embodiments, lamp cap 3 can be equipped with the opening 304 for heat dissipation, whereby, step down The heat that power supply mould group inside lamp cap generates can be dispersed without will cause in the condition of high temperature inside lamp cap, to avoid lamp cap The reliability of internal element declines.In some embodiments, the opening on lamp cap for heat dissipation is arc, particularly, on lamp cap Opening for heat dissipation is three camber lines not of uniform size.In one embodiment, the opening on lamp cap for heat dissipation is size Three camber lines gradually changed.Further, on lamp cap for the opening of heat dissipation can for any of above-mentioned shape or its Any combination.

It in other embodiments, include one in lamp cap 3 for installing the power supply slot (not shown) of power supply mould group.

In other embodiments, the width of LED lamp panel 2 (along fluorescent tube circumferential direction) can be widened to occupy the inner peripheral surface of fluorescent tube 1 Circumferential zones.Since 2 surface of LED lamp panel includes the circuit protecting layer of ink material, and ink material has reflection light Effect, therefore at the position widened, LED lamp panel 2 can play the function such as above-mentioned reflectance coating 12.In some embodiments, Proportional region of the LED lamp panel 2 between the perimeter of 1 inner peripheral surface of the length that fluorescent tube 1 circumferentially extends and the fluorescent tube be about 0.3 to 0.5.The light that light source issues can be such that light more concentrates by the position reflection widened.

Please continue to refer to Fig. 2, in some embodiments of the utility model, LED straight lamp further includes bonding agent piece 4, LED lamp panel Insulate film 7 and light source film 8.LED lamp panel 2 is pasted on the inner peripheral surface of fluorescent tube 1 by bonding agent piece 4.Bonding agent piece 4 can Think silica gel, form is unlimited.Bonding agent piece 4 can be a few short sections shown in figure or in long strip one section.Various shapes Bonding agent piece 4, various forms of LED lamp panels insulation film 7 and the various forms of light source films 8 of formula can be combined each other and be constituted The difference embodiment of the utility model.

Insulation film 7 is applied on surface of the LED lamp panel 2 towards LED light source 202, so that LED lamp panel 2 is not exposed, to rise To the insulating effect that LED lamp panel 2 is isolated from the outside.When applying insulation film 7, is reserved on insulation film 7 and accommodate LED light The corresponding through-hole 71 in source 202, so that LED light source 202 is set in through-hole 71.The constituent of insulation film 7 includes that vinyl is poly- Siloxanes, hydrogen-based polysiloxanes and aluminium oxide.The thickness range of insulation film 7 is about 100 μm to about 140 μm (micron).If The thickness of insulation film 7 does not have enough insulating effects then less than 100 μm, if the thickness of insulation film 7 is greater than 140 μm, It will cause the wastes of material.

Light source film 8 is applied to the surface of LED light source 202, and light source film 8 is transparent material, to guarantee light transmittance.Coating is extremely Behind 202 surface of LED light source, the shape of light source film 8 can be graininess, strip or sheet.The performance of light source film 8 depends on Refractive index and thickness.In some embodiments, the range that the refractive index of light source film 8 allows is 1.22~1.6.In some implementations In example, if the refractive index of light source film 8 is the refractive index of 202 shell refractive index square root of LED light source or light source film 8 It is subduplicate positive and negative the 15% of 202 shell refractive index of LED light source, then light transmittance is preferable.Here the shell of LED light source 202 Refer to receiving and carries the structure of LED grain (or chip).The ranges of indices of refraction of light source film 8 is 1.225 to 1.253.One In a little embodiments, the thickness range that light source film 8 allows is 1.1mm to 1.3mm.If the thickness of light source film 8 is less than 1.1mm, it will lid does not live light source 202, ineffective, if the thickness of light source film 8 is greater than 1.3mm, can reduce light transmittance, It also will increase material cost simultaneously.

In some embodiments, during LED light source is assembled into LED lamp panel, light source film 8 is first applied to LED The surface of light source 202；Then LED lamp panel insulation film 7 is applied on the side surface in LED lamp panel 2；Light source 202 is consolidated again Determine or is installed in LED lamp panel 2；Then the side surface opposite with LED light source 202 of LED lamp panel 2 is glued by bonding agent piece 4 Patch is fixed on the inner peripheral surface of fluorescent tube 1；Lamp cap 3 is finally fixed on to the end region of fluorescent tube 1 again, while by LED light source 202 and electricity Source 5 is electrically connected.As shown in the embodiment of Fig. 9, using flexible circuit board 2 pass through transition region 103 and power supply 5 weld or Person takes the mode of conventional wires routing to be connected, then the lamp cap 3 with Fig. 3 or Fig. 4 or structure shown in fig. 6 by Fig. 5 or Mode shown in Fig. 7 connects the transition region 103 in intensive treatment, forms a complete LED straight lamp.

In the present embodiment, LED lamp panel 2 is fixed on the inner peripheral surface of fluorescent tube 1 by bonding agent piece 4, can increase LED in this way The light emitting angle of straight lamp expands angle of visibility, angle of visibility is allowed to be more than 330 degree.By applying insulation film 7 and light source film 8, it realizes the insulation processing to entire lamp plate 2, in this way, electric shock accidents will not occur even if fluorescent tube 1 ruptures, improves safety.

Further, LED lamp panel 2 can be any one in strip aluminum substrate, FR4 plate or flexible circuit board. When fluorescent tube 1 is glass lamp, to rupture when fluorescent tube using the strip aluminum substrate or FR4 plate of rigidity, such as break in two Afterwards, entire fluorescent tube is still able to remain the state of straight tube, and at this moment user is possible to will be considered that LED straight lamp can also make With and go voluntarily to install, be easy to cause electric shock accidents.For LED lamp panel 2 flexible base board because increase it is flexible with it is pliable Qu Xing, rigid strip aluminum substrate, FR4 plate or traditional 3 layers of bendable plate face just before pliability and bendability deficiency problem because This is improved.In certain embodiments, LED lamp panel 2 uses flexible circuit board, and this LED lamp panel 2 is ruptured in fluorescent tube 1 It would not allow for the fluorescent tube 1 of rupture to continue to remain straight tube state afterwards, cannot be used, be kept away with informing user LED straight lamp Exempt from the generation of electric shock accidents.It is further describing to the flexible circuit board for being used as LED lamp panel 2 below.

Figure 10 is please referred to, in one embodiment, LED lamp panel 2 includes with the conductive circuit layer arranged in a stacked The flexible circuit board of 2a and dielectric layer 2b, the area equation of dielectric layer 2b and line layer 2a.LED light source 202 is set On a surface of line layer 2a, dielectric layer 2b is arranged on another surface opposite with LED light source 202 of line layer 2a On.Line layer 2a is electrically connected to power supply 5 to allow DC current to pass through.Meanwhile dielectric layer 2b is opposite with line layer 2a Surface then passes through bonding agent piece 4 and is adhered on the inner peripheral surface of fluorescent tube 1.Line layer 2a can be metal layer, or be furnished with conducting wire (example Such as copper wire) bus plane.

In another embodiment, the outer surface of line layer 2a and dielectric layer 2b can coat a circuit protecting layer, the electricity Road protective layer can be a kind of ink material, has the function of welding resistance and increases reflection.Or, it is convenient to omit dielectric layer, and Line layer 2a can be directly adhered to the inner peripheral surface of fluorescent tube, and the outer surface of line layer 2a coats circuit protecting layer.No matter line There is road floor 2a a floor structure or two-layer structure can use circuit protecting layer.In some embodiments, circuit protecting layer It can also be arranged in a side surface of LED lamp panel 2, such as circuit protecting layer only is set in the side with light source 202.Some In embodiment, flexible circuit board is a sandwich circuit layer structure 2a or is two-layer structure (a sandwich circuit layer 2a and one dielectric layer 2b), hence it is evident that than general three-layer flexible substrate (pressing from both sides one dielectric layer in two sandwich circuit layers) more flexible and flexibility, because This, the flexible circuit board of LED lamp plate 2 is mountable in the fluorescent tube 1 with special formed or non-straight lamp, and ordinatedly It is installed to the inner surface of fluorescent tube.In some cases it may be preferred to which flexible circuit board is tightly attached to the inner surface of fluorescent tube 1 by ground.In addition, The number of plies of flexible circuit board is fewer, then heat dissipation effect is better, and material cost is lower.

Certainly, the flexible circuit board of the utility model is not limited in one layer or double layer circuit plate, in some embodiments In, flexible circuit board includes multilayer line layer 2a and multilayer dielectric layer 2b, and dielectric layer 2b and line layer 2a can sequentially interlock folded It sets.The surface opposite of these overlapped layers and the most upper wiring layer 2a for being equipped with LED light source 202, and be connected to power sourced electric.And And the length of flexible circuit board is greater than the length of fluorescent tube.

Please continue to refer to Fig. 2, in one embodiment, LED lamp panel 2 is equipped with several LED light sources 202, is equipped in lamp cap 3 Power supply 5 passes through 2 electrical communication of LED lamp panel between LED light source 202 and power supply 5.Power supply 5 can be for individually integrated unit (i.e. All power source means are all integrated in a modular unit), and be set in the lamp cap 3 of 1 one end of fluorescent tube；Or power supply 5 can also be with It is divided into two individual units (i.e. all power source means are divided into two parts), and two individual units is respectively arranged on lamp In the lamp cap 3 at pipe both ends.If fluorescent tube 1 only has one end by glass tempering processing reinforcing, power supply 5 is preferentially selected as single collection At unit, and be set to corresponding to the reinforcing end of fluorescent tube 1 in lamp cap 3.

Power supply 5 can be manufactured by various modes.For example, power supply 5 can for by with high thermal conductivity silica gel (such as Thermal coefficient >=0.7w/mk) injection molding formed encapsulating body.There is the power supply that this mode obtains height to insulate, height radiates, The more regular advantage of shape, to cooperate with other components in component.Alternatively, the power supply 5 in lamp cap may be to have directly The printed circuit board of component that is exposed or being encased with traditional heat-shrink tube.In some embodiments of the utility model, power supply 5 can be Occur in the form of monolithic printed circuit board carries power supply mould group as shown in Figure 10, it also can be for as shown in figure 13 with single module Form occur.

Referring to figure 2. and Figure 13 is combined, in one embodiment, one end of power supply 5 has male plug 51, and the other end has metal Pin 52, the end of LED lamp panel 2 are equipped with female plug 201, and lamp cap 3 is equipped with the hollow conductive pin 301 for connecting external power supply. The male plug 51 of power supply 5 is inserted in the female plug 201 of LED lamp panel 2, and metallic pin 52 is inserted in the hollow conductive pin 301 of lamp cap 3 It is interior.Male plug 51 and female plug 201 are equivalent to adapter at this time, for power supply 5 and LED lamp panel 2 to be electrically connected.When metallic pin 52 After being inserted into hollow conductive pin 301, hollow conductive pin 301 is impacted by external stamping tool, so that hollow conductive pin 301 occurs Slight deformation so that the metallic pin 52 on power supply 5 is fixed, and is electrically connected to hollow conductive pin 301.It is powered When, electric current passes sequentially through hollow conductive pin 301, metallic pin 52, male plug 51 and female plug 201 and reaches LED lamp plate 2, and passes through LED lamp panel 2 reaches LED light source 202.However, the power supply 5 of the utility model is not limited to modular pattern shown in Figure 13.Power supply 5 It can be a printed circuit board for being equipped with power supply mould group, then electrically connected with male plug 51, the connection type of female plug 201 and LED lamp panel 2 It connects.

In another embodiment, the connection between any type of power supply 5 and LED lamp panel 2 can also be beaten with conventional wires Line mode replaces above-mentioned male plug 51 and female plug 201.Further, plain conductor can coat an insulating sleeve to protect user From electric shock.But the mode of conducting wire routing connection is easy to be broken during transportation, and may therefore lead to quality problems.

In another embodiment, the connection between power supply 5 and LED lamp panel 2 can by rivet nail joint, tin cream is Nian Jie, weldering Connect realization.A kind of mode of fixed LED lamp panel 2 is that a side surface of LED lamp panel 2 is bonded and fixed to fluorescent tube by bonding agent piece 4 1 inner peripheral surface.The both ends of LED lamp panel 2 can choose fixed or be not fixed on the inner peripheral surface of fluorescent tube 1.

Figure 11 and Figure 12 are please referred to, it in other embodiments, can be by replacing welding using circuit board assemblies 25 Mode connects LED lamp panel 2 and power supply 5.Circuit board assemblies 25 have a long circuit board 251 and a short circuit board 253, long circuit Plate 251 and short circuit board 253 are bonded each other, and short circuit board 253 is located at long 251 adjacent peripheral edges of circuit board.On short circuit board 253 With power supply mould group 250, power supply 5 is constituted to be formed.The short longer circuit board 251 of 253 material of circuit board is hard, to reach Power Support The effect of mould group 250.

Long circuit board 251 can be the flexible circuit board of LED lamp panel, and have line layer 2a shown in Fig. 10.LED The mode of line layer 2a and power supply mould group 250 electrical connection of lamp plate 2 can have different modes according to actual use situation.Such as figure Shown in 11, power supply mould group 250 and 251 upper wiring layer 2a of long circuit board are all located at the same side of short circuit board 253, so that power supply mould Group 250 is directly connect with long circuit board 251.As shown in figure 12, optionally, route on power supply mould group 250 and long circuit board 251 Layer 2a is located at the two sides of short circuit board 253, so that power supply mould group 250 and short circuit board 253 are directly connected to and by short Circuit board 253 and the line layer 2a of LED lamp panel 2 are directly connected to.

As shown in figure 11, in one embodiment, first long circuit board 251 and short circuit board 253 are bonded together, then will be electric Source mould group 250 is installed on the line layer 2a of the long circuit board 251 as LED lamp panel 2.In addition, the long circuit board of LED lamp panel 2 251 are not limited in a line layer 2a as above-mentioned, can be as shown in figure 15 also comprising another sandwich circuit layer such as line layer 2c. Light source 202 is set on the line layer 2a of LED lamp panel 2, passes through line layer 2a and 5 electrical communication of power supply.As shown in figure 12, another In one embodiment, the long circuit board 251 of LED lamp panel 2 may include a line layer 2a and a dielectric layer 2b.It can be first by dielectric layer 2b attaches to short circuit board 253, and then line layer 2a is attached on dielectric layer 2b and is extended on short circuit board 253.With Upper each embodiment, all without departing from the application range of the utility model circuit board composition part.

In the above embodiments, the length of short circuit board 253 may be about 15 millimeters to about 40 millimeters, and preferably about 19 Millimeter is to about 36 millimeters, and the length of long circuit board 251 can be about 800 millimeters to about 2800 millimeters, and preferably about 1200 millimeters extremely About 2400 millimeters.The ratio of short circuit board 253 and long circuit board 251 can be, for example, about 1:20 to about 1:200.

When the end of LED lamp panel 2 is not secured on the inner peripheral surface of fluorescent tube 1, LED lamp panel 2 and power supply 5 pass through welding side The connection of formula, which is not capable of fixing, supports power supply 5, and power supply 5 is arranged on the inside of lamp cap 3 and may be necessary.For example, need to Longer lamp cap is wanted to have enough space to receive power supply 5.But it will be according to the total of the fixed LED straight lamp of product standard The length of fluorescent tube is reduced under the premise of length, and therefore may reduce effective light-emitting area.

Figure 14 is please referred to, in one embodiment, replaces flexible circuit board using the rigid circuit board 22 of aluminum, so that firmly The end of formula circuit board 22 or the mountable end in fluorescent tube 1 of terminal, and power supply 5 is then uneven using the printed circuit board of power supply 5 The mode gone and be perpendicular to rigid circuit board 22 is weldingly fixed on 22 1 ends of rigid circuit board or terminal, in longitudinal side The space for being used for lamp cap is saved upwards.Welding procedure can be more convenient to realize and the efficient lighting area of LED straight lamp can also Retain.In addition, the conductive pin 53 for being electrically connected with lamp cap 3 can be formed directly on power supply 5 without additionally in electricity Other plain conductors are welded between source 5 and hollow conductive pin 301, as shown in figure 3, and this facilitate the systems of LED straight lamp It makes.

As the deformation of above scheme, the utility model also provides a kind of LED straight lamp, the power supply mould of the LED straight lamp At least partly electronic component of group is arranged in LED lamp panel.For example, utilizing PEC (printed electronic circuit, PEC:Printed Electronic Circuits) technology will at least partly electronic component printing, be inserted into or be embedded on lamp plate.

It in certain embodiments, only need to be in lamp plate if the electronic component of power supply mould group is provided entirely in LED lamp panel Both ends by welding lead connect LED straight lamp pin, realize LED straight lamp pin and lamp plate electrical connection.This Sample does not just have to that substrate is arranged for power supply mould group again, and then can further optimize the design or arrangement of the lamp cap of LED straight lamp.? In some embodiments, the both ends of lamp plate are arranged in power supply mould group, reduce shadow of the heat to LED component of its work generation to the greatest extent in this way It rings.In the present embodiment, due to there is no substrate to be used to support power supply mould group in addition to lamp plate, so it is total to substantially reduce welding Amount improves the global reliability of power supply mould group.

Another situation is that the part electronic component (such as resistance and/or small size capacitor) of power supply mould group is printed on LED When on lamp plate, and such as by big device: inductance and/or electrolytic capacitor electronic component are arranged in lamp cap.The production of LED lamp panel Process is same as above.And in this case, by being arranged part electronic component on lamp plate, in reasonable layout L ED straight lamp Power supply mould group, to optimize the design of lamp cap.

It deforms, can also be realized the electronic component of power supply mould group by way of being embedded in or being inserted into as above-mentioned scheme It is arranged on lamp plate.That is: electronic component is embedded on bendable or flexible lamp plate in a manner of insertion.In some embodiments, It can be used and realized containing resistor-type/capacitive the methods of copper coated foil plate (CCL) or the relevant ink of silk-screen printing；Or use ink-jet The method that printing technique realizes insertion passive components, i.e., using ink-jet printer directly the electrically conductive ink and phase as passive components It closes on the position set in function ink jet-printing to lamp plate.Then, by UV light processing or drying/sintering processes, potting is formed The lamp plate of passive components.Being embedded in electronic component on lamp plate includes such as resistance, capacitor and inductance；In other embodiments, Live components are also suitable.By the way that the rational deployment of power supply mould group on some Component Embeddings to lamp plate, will be can be realized and then reached The design for optimizing lamp cap, since the surface area of the component of the printed circuit board for carrying power supply mould group is reduced or is reduced, As a result it is also reduced or reduces for carrying size, weight and the thickness of the printed circuit board of the component of power supply mould group.And In this case, since (pad is to be easiest to introduce on printed circuit board or lead for the pad that eliminates these resistance and capacitor Cause the part of failure, failure or defect), the reliability of power supply mould group is also improved.It will shorten on printed circuit board simultaneously The length of conducting wire for connecting elements and allow on a printed circuit more compact component be laid out, thus improve these structures The performance of part.

Cooperate Figure 11 and Figure 12, short circuit board 253 includes the first short circuit board for connecting with long 251 both ends of circuit board and the Two short circuit boards, and the electronic component in power supply mould group is respectively set on the first short circuit board and the second short circuit board. The length dimension of first short circuit board and the second short circuit board can be consistent, can also be inconsistent.Generally, the first short circuit board The length dimension of (the left side circuit board of the short circuit board 253 of the right-hand circuit board and Figure 12 of the short circuit board 253 of Figure 11) is the The length of two short circuit boards (right-hand circuit board of the short circuit board 253 of the left side circuit board and Figure 12 of the short circuit board 253 of Figure 11) Spend about the 30%~80% of size.The length dimension of more preferably first short circuit board is the pact of the length dimension of the second short circuit board 1/3~2/3.For example, in one embodiment, the one of the size of the short circuit board of length dimension substantially second of the first short circuit board Half.The size of second short circuit board can be for example between about 15mm~about 65mm (specifically depending on application).In some implementations In example, in the lamp cap of one end that the first short circuit board is set to LED straight lamp and the second short circuit board is set to LED In the lamp cap of the opposite other end of straight lamp.

Figure 19 is the circuit box schematic diagram according to the LED light of the utility model one embodiment.Referring to Figure 19, LED light Power supply mould group mainly include rectification circuit 510, filter circuit 520 and LED drive module 530.Rectification circuit 510 connects Foot 501, pin 502 to receive external drive signal, and rectify external drive signal, then by output end 511, Signal after 512 output rectifications.

Figure 20 is the schematic diagram according to the LED module of the utility model embodiment.Referring to fig. 20, the anode of LED module 630 Filtering output end 521 is coupled, negative terminal couples filtering output end 522.LED module 630 includes at least one LED unit 632. LED Unit 632 is connected in parallel to each other when being more than two.The anode of the anode coupling LED module 630 of each LED unit 623, with coupling Filtering output end 521；The negative terminal of the negative terminal coupling LED module 630 of each LED unit, to couple filtering output end 522.LED Unit 632 includes at least one LED 631.When LED 631 is a plurality of, LED 631 is connected in series, first LED 631 Anode couple the anode of the LED unit 632, the negative terminal of first LED 631 couples next or second LED 631. And the anode of the last one LED 631 couples the negative terminal of previous LED 631, described in the negative terminal coupling of the last one LED 631 The negative terminal of LED unit 632.

Figure 21 is the schematic diagram according to the LED module of the utility model embodiment.Referring to fig. 21, the anode of LED module 630 Filtering output end 521 is coupled, negative terminal couples filtering output end 522.LED module 630 includes at least two LED units 732, and The anode of the anode coupling LED module 630 of each LED unit 732 and the negative terminal of negative terminal coupling LED module 630.Each LED unit 732 includes at least two LED 731, and the connection type of the LED 731 in the LED unit 732 is such as Figure 20 institute As description.For example, the anode of the cathode of LED 731 and next LED 731 couple, and the anode coupling of first LED 731 The anode of the LED unit 732 and the cathode of the last one LED 731 couple the cathode of the LED unit 732.Furthermore It is also connected to each other between LED unit 732 in the present embodiment.N-th of LED 731 of each LED unit 732 anode that This connection, cathode are also connected to each other.Therefore, it is connected between the LED of the LED module 630 of the present embodiment with web form.

The LED drive module 530 of above-described embodiment includes LED module 630.

Figure 22 is the plan view according to the circuit layout of the LED module of some embodiments of the utility model.Referring to fig. 22, this The connection relationship of the LED 831 of embodiment is said by taking three LED units in LED module 630 as an example with shown in Figure 21 at this It is bright.Positive wire 834 and cathode conductor 835 receive driving signal, and to provide electrical power to each LED 831, for example: anode is led Line 834 couples the filtering output end 521 of aforementioned filter circuit 520, and cathode conductor 835 couples the filtering of aforementioned filter circuit 520 Output end 522, with signal after accepting filter.For convenience of description, by n-th of LED respective in all three LED units in Figure 22 831 are divided into same LED group 833.

Positive wire 834 connects first LED 831 in the LED unit of the leftmost side three, i.e., the leftmost side as shown in figure 22 (left side) anode of three first LED 831 in LED group 833, and cathode conductor 835 connects three in three LED units (right side) of the last one a LED 831, i.e., three the last one LED 831 in rightmost side LED group 833 as shown in figure 22 are negative Pole.The cathode of three first LED 831 of three LED units, the anode and other LED of three the last one LED 831 831 anode and cathode then passes through connecting wire or component 839 connects.

In other words, the anode of three LED 831 of leftmost side LED group 833 is connected to each other by positive wire 834, Cathode is connected to each other by leftmost side connecting wire 839.The anode of three LED 831 of the second from left LED group 833 is connected by the leftmost side It connects conducting wire 839 to be connected to each other, cathode is connected to each other by the connecting wire 839 of the second from left.Due to the three of leftmost side LED group 833 The anode of three LED 831 of the cathode and the second from left LED group 833 of a LED 831 passes through leftmost side connecting wire 839 each other Connection, therefore the anode of the cathode of first LED 831 of each LED unit of three LED units and second LED 831 It is connected to each other.The rest may be inferred to form as shown in figure 21 netted.

Figure 23 is the plan view according to the circuit layout of the LED module of another embodiment of the utility model.Referring to fig. 23, this The connection relationship of the LED 931 of embodiment includes 7 LED herein with shown in Figure 20 with three LED units and each LED unit It is illustrated for 931.Positive wire 934 and cathode conductor 935 receive driving signal, to provide electrical power to each LED 931, lift For example: positive wire 934 couples the filtering output end 521 of aforementioned filter circuit 520, and cathode conductor 935 couples aforementioned filtering The filtering output end 522 of circuit 520, with signal after accepting filter.It for convenience of description, will be each in three LED units in Figure 23 Seven a LED 931 are divided into same LED group 932.Therefore there are three LED groups 932 corresponding with three LED units.

Positive wire 934 connect three LED groups 932 in each first (leftmost side) LED 931 (left side) it is positive. Cathode conductor 935 connects (right side) cathode of three LED groups 932 the last one (rightmost side) LED 931 in each.Each In LED group 932, the cathode of the LED 931 of left connects right LED 931 by connecting wire 939 in neighbouring two LED 931 Anode.Whereby, the LED 931 of each LED group 932 is connected in series.

Furthermore cabling shown in Figure 22 and 23 can be realized using flexible circuit board or substrate, depending on being used Be specifically defined, be even referred to alternatively as flexible circuit board.For example, flexible circuit board has single conductive layer, with erosion Quarter, mode formed positive wire 834, positive wire 834a, cathode conductor 835, negative wire 835a and connecting wire in Figure 22 Positive wire 934, positive wire 934a, cathode conductor 935, negative wire 935a and connecting wire in 839 and Figure 23 939。

The utility model LED straight lamp in each embodiment realization with as previously described.It needs to point out, each In embodiment, for same root LED straight lamp, including " fluorescent tube has structure-reinforced end regions ", " LED lamp panel use Flexible circuit board ", " fluorescent tube inner peripheral surface is coated with adhesive film ", " fluorescent tube inner peripheral surface is coated with diffusion barrier ", " Covers have diffusion barrier Piece ", " tube inner wall is coated with reflectance coating ", " lamp cap includes heat-conducting part ", " using circuit board member connection LED lamp panel and power supply " Feature, can be only single in practice or be integrally applied, so that only implementing a feature or implementing several features simultaneously.

In addition, about " fluorescent tube have structure-reinforced end regions ", " LED lamp panel uses flexible circuit board ", " in fluorescent tube Circumferential surface is coated with adhesive film ", " fluorescent tube inner peripheral surface is coated with diffusion barrier ", " Covers have diffusion barrier sheet ", " tube inner wall is coated with reflection Film ", " utilizes circuit board member (including long circuit board and short circuit board) connection LED lamp panel and electricity at " lamp cap includes heat-conducting part " Any feature in the features such as source ", including any the relevant technologies point described in the utility model embodiment and its modification and it Any combination.

For example, feature " fluorescent tube has structure-reinforced end regions " may include that " fluorescent tube includes body region and multiple ends Petiolarea has a transition region between the end region and the body region, transition region connects the body region and the end region, The both ends of the transition region are all arc in the axial sectional view along fluorescent tube, and the end region is respectively sheathed on a lamp cap, until The outer diameter of a few end region is less than the outer diameter of the body region, and the outer diameter phase of the outer diameter of lamp cap and the body region Deng."

For example, feature " LED lamp panel uses flexible circuit board " may include " flexible circuit board and the power supply Between output end by conducting wire routing connect or the flexible circuit board and the output end of the power supply between weld.In addition, The flexible circuit board includes the storehouse of a dielectric layer and a line layer；Flexible circuit board can be in surface coating printing ink material The circuit protecting layer of material, and the function by increasing width circumferentially to realize reflectance coating."

For example, feature " fluorescent tube inner peripheral surface is coated with diffusion barrier " may include that " constituent of the diffusion coating includes carbonic acid In calcium, calcium halophosphate activated by antimony andmanganese and aluminium oxide or any combination thereof and thickener and ceramics activated carbon.In addition, the diffusion barrier is also It for diffusion barrier sheet and can cover on outside LED light source."

For example, feature " tube inner wall is coated with reflectance coating " may include that " light source may be disposed on reflectance coating, be set to institute It states in reflectance coating opening or in the side of the reflectance coating."

For example, feature " utilizing circuit board member connection LED lamp panel and power supply " may include that " sub-assembly of length circuit board has There are a long circuit board and a short circuit board, long circuit board and short circuit board are bonded fix by bonding way each other, short circuit board Positioned at long circuit board adjacent peripheral edges.There is power supply mould group on short circuit board, be integrally formed power supply, short circuit board is than long circuit board Firmly."

That is, the features described above of the utility model can be made to arbitrary permutation and combination, and for LED straight lamp It improves, and only describes above-described embodiment in an illustrative manner.The utility model is without being limited thereto, and without departing from essence of the invention Many modifications are possible in the case where range refreshing and defined in the appended claims.

Claims

1. a kind of LED straight lamp, two lamp caps including a fluorescent tube and fixed to the lamp tube ends, which is characterized in that

The LED straight lamp further includes a circuit board assemblies, and the circuit board assemblies have a long circuit board and a short circuit board, There is power supply mould group, the length of the long circuit board is greater than the length of the short circuit board, the long electricity on the short circuit board Road plate is set in the fluorescent tube,

The lamp cap is metallic lamp holder, and the lamp cap is equipped with the hollow conductive pin for connecting external power supply, and the lamp cap exists Insulator is set at hollow conductive pin.

2. LED straight lamp according to claim 1, which is characterized in that at least portion of the power supply mould group of the LED straight lamp Electronic component is divided to be arranged on long circuit board.

3. LED straight lamp according to claim 1, which is characterized in that the fluorescent tube include body region and be located at body region Two end regions at both ends, the lamp sleeve are set to the end region, and the difference of the lamp cap outer diameter and the body region outer diameter is Positive and negative 1mm.

4. LED straight lamp according to claim 1, the power supply mould group includes LED drive module, the LED drives mould Block includes LED module, and the LED module contains at least two LED unit, and the anode of each LED unit couples LED mould The anode of block, and the negative terminal of its negative terminal coupling LED module, each LED unit contain at least two LED, the same LED is mono- LED in member is connected in series.

5. LED straight lamp according to claim 4, the LED module includes three LED units.

6. LED straight lamp according to claim 1, which is characterized in that the lamp cap is equipped with the opening for heat dissipation.

7. LED straight lamp according to claim 1, which is characterized in that the long circuit board is LED lamp panel, the LED light Plate is equipped with LED light source, and the LED lamp panel includes with the line layer and dielectric layer arranged in a stacked, the LED light source With the line layer electrical communication.

8. LED straight lamp according to claim 7, the LED lamp panel further includes a circuit protecting layer, the circuit protection The side that LED lamp panel has light source is arranged in layer.

9. LED straight lamp according to claim 1, which is characterized in that the length of the long circuit board be 800 millimeters extremely 2800 millimeters.

10. LED straight lamp according to claim 7, which is characterized in that the LED straight lamp further include bonding agent piece, LED lamp panel insulation film and light source film, the LED lamp panel are pasted on the inner peripheral surface of the fluorescent tube by the bonding agent piece On, the insulation film is applied on surface of the LED lamp panel towards the light source, and the light source film is applied to the light source Surface.

11. LED straight lamp according to claim 10, which is characterized in that the insulating cement on piece reserves and accommodates LED The corresponding through-hole of light source.

12. LED straight lamp according to claim 1, which is characterized in that the fluorescent tube uses glass material.

13. LED straight lamp according to claim 1, which is characterized in that the size phase of the lamp cap of the lamp tube ends Together.

14. a kind of LED straight lamp, two lamp caps including a fluorescent tube and fixed to the lamp tube ends, which is characterized in that

The LED straight lamp further includes a circuit board assemblies, and the circuit board assemblies have a long circuit board and a short circuit board, There is power supply mould group, the length of the long circuit board is greater than the length of the short circuit board, the long electricity on the short circuit board Road plate is set in the fluorescent tube, and at least partly electronic component of the power supply mould group of the LED straight lamp is arranged in the long circuit On plate, the long circuit board is LED lamp panel, and the LED lamp panel is equipped with LED light source, and the LED lamp panel includes line layer,

The fluorescent tube uses glass material,

The lamp cap is equipped with the opening for heat dissipation, and the lamp cap is metallic lamp holder, and the lamp cap is equipped with for connecting outside Insulator is arranged in the hollow conductive pin of power supply, the lamp cap at hollow conductive pin.

15. LED straight lamp according to claim 14, which is characterized in that the fluorescent tube include body region and be located at main body Two end regions at area both ends, the lamp sleeve are set to the end region, the difference of the lamp cap outer diameter and the body region outer diameter For positive and negative 1mm.

16. LED straight lamp according to claim 14, the power supply mould group includes LED drive module, the LED driving Module includes LED module, and the LED module contains at least two LED unit, and the anode of each LED unit couples LED The anode of module, and the negative terminal of its negative terminal coupling LED module, each LED unit contain at least two LED, the same LED LED in unit is connected in series.

17. LED straight lamp according to claim 16, the LED module includes three LED units.

18. LED straight lamp according to claim 14, which is characterized in that the length of the long circuit board be 800 millimeters extremely 2800 millimeters.

19. LED straight lamp according to claim 14, which is characterized in that the LED straight lamp further include bonding agent piece, LED lamp panel insulation film and light source film, the LED lamp panel are pasted on the inner peripheral surface of the fluorescent tube by the bonding agent piece On, the insulation film is applied on surface of the LED lamp panel towards the light source, and the light source film is applied to the light source Surface.

20. LED straight lamp according to claim 19, which is characterized in that the insulating cement on piece reserves receiving light source Through-hole.

21. LED straight lamp according to claim 14, which is characterized in that the size of the lamp cap of the lamp tube ends It is identical.

22. LED straight lamp according to claim 14, which is characterized in that the LED lamp panel further includes dielectric layer, described Line layer and the dielectric layer arrange in a stacked, the LED light source and the line layer electrical communication.

23. a kind of LED straight lamp, two lamp caps including a fluorescent tube and fixed to the lamp tube ends, which is characterized in that

The lamp cap is equipped with the hollow conductive pin for connecting external power supply.

24. LED straight lamp according to claim 23, which is characterized in that the lamp cap includes heat-conducting part, the heat-conducting part The end of the fluorescent tube is connected to by gluing.

25. LED straight lamp according to claim 23, which is characterized in that the lamp cap includes heat-conducting part, the heat-conducting part The end of the fluorescent tube is adhered to by silica gel.

26. LED straight lamp according to claim 24, which is characterized in that the inner peripheral surface of the heat-conducting part and the fluorescent tube Outer peripheral surface between be formed with an accommodating space, the glue is filled in the accommodating space.

27. LED straight lamp according to claim 25, which is characterized in that the inner peripheral surface of the heat-conducting part and the fluorescent tube Outer peripheral surface between be formed with an accommodating space, the silicone filler is in the accommodating space.

28. LED straight lamp according to claim 23, which is characterized in that the power supply mould group of the LED straight lamp is at least Part electronic component is arranged on long circuit board.

29. LED straight lamp according to claim 23, which is characterized in that the fluorescent tube include body region and be located at main body Two end regions at area both ends, the lamp sleeve are set to the end region, the difference of the lamp cap outer diameter and the body region outer diameter For positive and negative 1mm.

30. LED straight lamp according to claim 23, which is characterized in that the lamp cap is equipped with the opening for heat dissipation.

31. LED straight lamp according to claim 23, which is characterized in that the long circuit board is LED lamp panel, the LED Lamp plate is equipped with LED light source, and the LED lamp panel includes with the line layer and dielectric layer arranged in a stacked, the LED light Source and the line layer electrical communication.

32. LED straight lamp according to claim 29, the LED lamp panel further includes a circuit protecting layer, and the circuit is protected The side that LED lamp panel has light source is arranged in sheath.

33. LED straight lamp according to claim 23, the power supply mould group includes LED drive module, the LED driving Module includes LED module, and the LED module contains at least two LED unit, and the anode of each LED unit couples LED The anode of module, and the negative terminal of its negative terminal coupling LED module, each LED unit contain at least two LED, the same LED LED in unit is connected in series.

34. LED straight lamp according to claim 33, the LED module includes three LED units.