CN207716122U - A kind of LED straight lamps - Google Patents

Abstract

A kind of LED straight lamps, including being provided with the lamp plate of LED light source and being provided with the power supply circuit board of power supply, it is characterized in that, the lamp plate is bendable circuit soft board or flexible base board and directly forms electrical communication by welding with the power supply circuit board, and the axis projection length of the lamp plate is more than the fluorescent tube length of the LED straight lamps；The lamp plate has the part that is fixed on the inner peripheral surface of fluorescent tube and positioned at the lamp plate both ends and the part that is not fixed on the inner peripheral surface of the fluorescent tube, wherein, it is not fixed the part on the fluorescent tube inner peripheral surface and forms a freedom portion, the freedom portion connects the power supply circuit board；It is in " Z " font or " S " font in the LED straight lamps after the freedom portion is connect with the power supply circuit board.

Description

A kind of LED straight lamps

Technical field

The utility model is related to field of lighting appliances, and in particular to a kind of LED straight lamps.

Background technology

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 lamps need not filling mercury.Therefore, various by seeming conventional fluorescent bulbs and lamp In the lighting system for the household or workplace that the illumination option such as pipe is dominated, LED straight lamps are it is hardly surprising that be increasingly becoming people Height expect illumination option.The advantages of LED straight lamps the durability comprising promotion and service life and compared with low power consuming.Therefore, After considering all factors, LED straight lamps will be more and more widely used.

Known LED straight lamps generally comprise fluorescent tube, in fluorescent tube and the circuit board with light source, and are set to fluorescent tube two The lamp cap at end, lamp cap is interior to be equipped with power supply, is electrically connected by circuit board between light source and power supply.However existing LED is straight Spot has a few class problems to need to solve in making and application, such as：

1：Circuit board is generally rigid plate, after fluorescent tube ruptures especially in partial fracture when, whole LED straight lamp The state of straight tube is remained in, user, which can be mistakenly considered fluorescent tube, to be used, and to go voluntarily to install, be easy to cause and leak electricity And electric shock accidents.Applicant in previous case, such as:In CN105465640U, it is proposed that corresponding structural improvement mode.

2：In the prior art, circuit board has with lamp plate realizes connection by conducting wire, after being connected using conducting wire, is subsequently moving In the process, it is easy to happen shaking, thus makes it possible to conducting wire and is broken, leads to the Joint failure of circuit board and lamp plate.

3：Light source is set on lamp plate, and lamp plate needs physically to connect with power supply, and it is light source that such power supply, which could be stablized, Driving power is provided.Need to consider when connection connection fastness, the convenience of manufacture processing and the yield of product and Quality stability.If lamp plate uses bendable circuit soft board, when bendable circuit soft board is placed on power panel upper weld, welding The space that stability is also further promoted.

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

Utility model content

Many embodiments of the abstract description herein about " the utility model ".However the vocabulary " the utility model " is only For some embodiments (in spite of in claim) for describing to disclose in this description, rather than it is possible to Embodiment complete description.The some embodiments for being described below as each features or aspect of " the utility model " can not Merge to form a LED straight lamps or in which a part with mode.

The utility model provides a kind of new LED straight lamps and its various aspects (with feature), to solve above-mentioned ask Topic.

A kind of LED straight lamps, including being provided with the lamp plate of LED light source and being provided with the power supply circuit board of power supply, feature It is,

The lamp plate is bendable circuit soft board or flexible base board and is directly formed by welding with the power supply circuit board Electrical communication；

The lamp plate is with the part being fixed on the inner peripheral surface of fluorescent tube and positioned at the lamp plate both ends and is not fixed in institute State the part on the inner peripheral surface of fluorescent tube, wherein be not fixed part on the fluorescent tube inner peripheral surface and form a freedom portion, it is described from The power supply circuit board is connected by portion；

The freedom portion is in " Z " font or " S " font in the LED straight lamps.

Optionally, the lamp plate includes that the circuit layer of stacking and circuit protecting layer, the circuit layer are protected far from the circuit Sheath is defined as the first face on one side, and the circuit protecting layer is defined as the second face on one side far from the circuit layer, and described It is equipped with multiple LED light sources on one side and is electrically connected the circuit layer.

Optionally, the power supply circuit board includes power circuit layer, and the power supply circuit board defines opposite first Face and the second face, second face are located at side of the power supply circuit board with the power circuit layer, and the of the lamp plate It is connected to the second face of the power supply circuit board on one side.

Optionally, it is additionally provided with second circuit protective layer on the first face of the circuit layer.

Optionally in being provided with pad on the lamp plate, the freedom portion has the pad；The power supply circuit board On be provided with pad；The pad of the pad of the lamp plate and the power supply circuit board is made described by being welded to connect by welding Power supply circuit board and the lamp plate electrical communication.

Optionally, several holes are set on the pad of the power supply circuit board.

Optionally, the first face of the lamp plate has the pad, and scolding tin, and the weldering of the lamp plate are placed on the pad Connecing end has notch.

Optionally, the bendable circuit soft board is tightly attached on the tube wall.

Optionally, the pad of the lamp plate configuration is two unconnected pads.

Optionally, further include lamp cap, the lamp cap is arranged in the lamp tube ends.

The utility model additionally provides a kind of LED straight lamps, which is characterized in that is set to the fluorescent tube including a fluorescent tube, one Interior long circuit board is respectively arranged on two lamp caps of the lamp tube ends, and the short circuit being set in described two lamp caps Plate, the long circuit board and the short circuit board are fixed each other by welding fitting, the short longer circuit board of circuit board material Firmly, there is power supply module on the short circuit board；The length of the long circuit board be more than the fluorescent tube, the one of the long circuit board Side surface portion is bonded and fixed to the inner peripheral surface of the fluorescent tube, and the both ends of the long circuit board are not fixed in the fluorescent tube On circumferential surface, the long circuit board is bendable circuit soft board or flexible base board, and the long circuit board both ends are not fixed described Part on the inner peripheral surface of fluorescent tube forms a freedom portion, and the freedom portion connects the short circuit board, and the freedom portion is described It is in " Z " font or " S " font in LED straight lamps.

Optionally, the short circuit board include the first short circuit board and the second short circuit board, the first short circuit board and The second short circuit board is connected to the both ends of long circuit board, and the first short circuit board and the second short circuit board It is separately positioned in described two lamp caps.

Optionally, the described first short circuit board and the second short circuit board length are inconsistent.

Optionally, the described first short circuit board and the second short circuit board length are consistent.

Optionally, the length of the described first short circuit board is the 30%~80% of the length of the described second short circuit board.

Optionally, the capacitance in the power supply module is at least partially or fully set to the first short circuit of short circuit board On plate.

Optionally, the electronic component in the power supply module also includes rectification circuit, controller, switching switch and electricity Feel, other electronic components in addition to the capacitance in the power supply module may be contained on the described second short circuit board.

The utility model additionally provides a kind of LED straight lamps, including being provided with the lamp plate of LED light source and being provided with power supply Power supply circuit board, which is characterized in that

The lamp plate is bendable circuit soft board or flexible base board and is directly formed by welding with the power supply circuit board Electrical communication, and the axis projection length of the lamp plate is more than the fluorescent tube length of the LED straight lamps；

The lamp plate is with the part being fixed on the inner peripheral surface of fluorescent tube and positioned at the lamp plate both ends and is not fixed in institute State the part on the inner peripheral surface of fluorescent tube, wherein be not fixed part on the fluorescent tube inner peripheral surface and form a freedom portion, it is described from The power supply circuit board is connected by portion；

The lamp plate include stacking circuit layer and circuit protecting layer, the circuit layer far from the circuit protecting layer one Face is defined as the first face, and the circuit protecting layer is defined as the second face, setting on first face on one side far from the circuit layer There are multiple LED light sources and is electrically connected the circuit layer；

The power supply circuit board includes power circuit layer, and the power supply circuit board defines opposite the first face and second Face, second face are located at the side that the power supply circuit board has the power circuit layer, the first face connection of the lamp plate To the second face of the power supply circuit board.

Optionally, the freedom portion is in " Z " font or " S " font in the LED straight lamps.

Optionally, pad is provided on the lamp plate, the freedom portion has the pad；On the power supply circuit board It is provided with pad；The pad of the pad of the lamp plate and the power supply circuit board makes the electricity by being welded to connect, by welding Source circuit plate and the lamp plate electrical communication.

Compared with prior art, the technical solution of the utility model has the following advantages：

Further, lamp plate uses bendable circuit soft board or flexible base board so that fluorescent tube is after rupture, such as fracture is in Straight tube state cannot be kept when two-section so that user not will be considered that fluorescent tube can also use and go voluntarily to install, to avoid touching Electrification.

Lamp plate is not fixed the part on fluorescent tube inner peripheral surface and forms a freedom portion, can promote the convenience of assembly.

Further, freedom portion in LED straight lamps be in " Z " font or " S " font, the freedom of lamp plate can be improved in this way The risk for the stripping solder joint that portion causes in weld, improves the stability of welding, avoids generating the danger struck sparks.

Further, the pad of the pad of lamp plate and power supply circuit board is removed the use of conducting wire from, can be carried by being welded to connect First face of the stability of high product, lamp plate is connected to the second face of power supply circuit board, can advanced optimize welding stability, weldering Connect better quality, it is not easy to fall off.

Further, several holes are set on the pad of power supply circuit board, after placing scolding tin, in automatic welding journey In sequence, when welding pressure head and being pressed downwardly onto power supply circuit board automatically, scolding tin can be pushed into due to pressure thus in hole, well Meet automation processing needs.

Further, the welding ends of lamp plate has notch, the tin of welding through notch that the pad and power supply of lamp plate is electric The pad electrical connection of road plate is fixed, and having more tin after cooling condensation forms the soldered ball having more than notch, this soldered ball knot Structure can allow the crystallized ability of electric connection structure to enhance.

Further, bendable circuit soft board is tightly attached on the tube wall, makes bendable circuit soft board and fluorescent tube pipe Wall contact area increases, can improving heat radiation efficiency.

Further, the first short circuit board and the second short circuit board length are inconsistent, can be according to actual demand, first Electronic component is arranged in short circuit board and the second short circuit board.

Further, the electronic component in power supply module is separately positioned on two short circuit boards, contributing to will be different The electronic component of physical characteristic is provided separately, to avoid interacting.Capacitance and other electronic components are provided separately, avoided LED straight lamps using when the heat that sends out of other electronic components damaged caused by capacitance, to help to extend whole branch LED The service life of straight lamp.

The utility model more have above-mentioned non-usual the had further effect of optional mode hereinafter in conjunction with Specific implementation mode is illustrated.

Description of the drawings

Fig. 1 is a section plan, shows that the lamp plate of the LED straight lamps of one embodiment of the utility model is bendable circuit Soft board and its end gets over the transition part of fluorescent tube and is welded to connect with the output end of power supply；

Fig. 2 is a section plan, shows that the bendable circuit of the lamp plate of one embodiment LED straight lamps of the utility model is soft Plate has double-layer structure；

Fig. 3 A are a stereograms, show the bendable circuit soft board of the lamp plate of one embodiment LED straight lamps of the utility model The pad being welded to connect with the printed circuit board with power supply；

Fig. 3 B are the conducting wire schematic diagram being arranged along lamp plate between its both ends lamp cap according to an embodiment LED straight lamps；

Fig. 4 A are the lamp plate of one embodiment of the utility model and the welded partial schematic diagram of power supply；

Fig. 4 B to Fig. 4 D are the schematic diagrames of the lamp plate of one embodiment of the utility model and the welding process of power supply；

Fig. 5 is a stereogram, shows the bendable circuit soft board of the lamp plate of another embodiment LED straight lamps of the utility model It is combined into a circuit board assemblies with the printed circuit board of power supply；

Fig. 6 is a stereogram, shows another configuration of the circuit board assemblies of Fig. 5；

Fig. 7 is a stereogram, is shown in another embodiment of the utility model, the double-deck line of bendable circuit soft board tool of lamp plate Road floor.

Specific implementation mode

The utility model is on the basis of glass lamp, it is proposed that a kind of new LED straight lamps, to solve in background technology The problem of mentioning and the above problem.It is understandable to enable the above objects, features, and advantages of the utility model to become apparent, under Face is described in detail specific embodiment of the utility model in conjunction with attached drawing.The narration of following various embodiments of the utility model is only Be in order to illustrate and be illustration, be not meant as the whole embodiments of the utility model or limit the invention to specific reality Apply example.

In addition need first to illustrate, herein in order to clearly state each utility model feature of this exposure and with multiple implementations The mode point of example is described as follows with regard to each embodiment.But do not mean that each embodiment is only capable of individually implementing.It is familiar with the skill of this field Art personnel can according to demand from being about to feasible implementations example and arrange in pairs or groups design together, or by different embodiments can band change According to design requirement, voluntarily band changes components/modules.In other words, the embodiment that this case is taught is not limited only to described in the following example Aspect, also include in the case that feasible, the band between each embodiment/components/modules changes and permutation and combination, in this conjunction It first chats bright.

Though applicant in previous case, such as:In CN105465640A, it is proposed that reached using flexible circuit board At the improvement mode for reducing electric leakage accident, section Example, which can be combined with present application using circuit mode, will have more significantly Effect.

Fig. 2 is please referred to, the bendable circuit soft board as lamp plate 2 includes one layer of line layer 2a with conductive effect, light Source 202 is set on line layer 2a, is connected to power sourced electric by line layer 2a.Have the line of conductive effect in this description Road floor can be described as conductive layer again.With reference to Fig. 2, in the present embodiment, bendable circuit soft board can also include one dielectric layer 2b, with Line layer 2a is stacked, the area equation of dielectric layer 2b and line layer 2a or is slightly less than dielectric layer, line layer 2a with dielectric layer Surface opposite 2b is for being arranged light source 202.Line layer 2a is electrically connected to power supply 5 (referring to Fig. 1) to allow DC current Pass through.Dielectric layer 2b is then adhered on the inner peripheral surface of fluorescent tube 1 on the surface opposite with line layer 2a by bonding agent 4.Wherein, line Road floor 2a can be metal layer, or be furnished with the bus plane of conducting wire (such as copper wire).

In other embodiments, the outer surface of line layer 2a and dielectric layer 2b can respectively coat a circuit protecting layer, described Circuit protecting layer can be a kind of ink material, have the function of welding resistance and increase to reflect.Alternatively, bendable circuit soft board can be with It is one layer of structure, i.e., is only made of a sandwich circuit layer 2a, then in the surface of line layer 2a one layer of above-mentioned ink material of cladding Circuit protecting layer can be equipped with opening on protective layer so that light source can be electrically connected with line layer.Whether a sandwich circuit layer 2a Structure or two-layer structure (a sandwich circuit layer 2a and one dielectric layer 2b) can coupled circuit protective layers.Circuit protecting layer also may be used To be arranged in a side surface of bendable circuit soft board, such as circuit protecting layer only is set in the side with light source 202.It needs It is noted that bendable circuit soft board is a sandwich circuit layer structure 2a or is two-layer structure (a sandwich circuit layer 2a and one layer of 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, Therefore, can with the special formed collocation of fluorescent tube 1 (such as:Non- straight lamp), and bendable circuit soft board is tightly attached to fluorescent tube 1 On tube wall.In addition, it is preferably configuration that bendable circuit soft board, which is tightly attached to tube wall, and the number of plies of bendable circuit soft board is got over Few, then heat dissipation effect is better, and material cost is lower, more environmentally friendly, and flexible effect also has an opportunity to be promoted.

Certainly, the bendable circuit soft board of the utility model is not limited in one layer or double layer circuit plate, in other implementations In example, bendable circuit soft board includes multilayer line layer 2a and multilayer dielectric layer 2b, and dielectric layer 2b can be handed over sequentially with line layer 2a Mistake is stacked and set on side opposite with light source 202 line layer 2a, and light source 202 is set to the most last layer of multilayer line layer 2a, leads to The most last layer for crossing line layer 2a is connected to power sourced electric.In other embodiments, as the bendable circuit soft board of lamp plate 2 Axis projection length is more than the length of fluorescent tube.

Fig. 7 is referred to, in one embodiment, bendable circuit soft board as lamp plate 2 includes sequentially from top to bottom one the The thickness of one line layer 2a, a dielectric layer 2b and one second line layer 2c, the second line layer 2c are more than the thickness of first line layer 2a Degree, the axis projection length of lamp plate 2 is more than the length of fluorescent tube 1, wherein being not provided with light source 202 in lamp plate 2 and protruding from fluorescent tube 1 In terminal region, first line layer 2a and the second line layer 2c penetrate two through holes 203 and 204 electrical communications respectively, but pass through Perforation 203 and 204 is not connected to avoid short circuit each other.

Thereby mode can play support first line layer 2a's and dielectric layer 2b since the second line layer 2c thickness is larger Effect, at the same while allowing lamp plate 2 to be attached on the inner tubal wall of fluorescent tube 1 be not likely to produce offset or deformation, to promote manufacturing yield.This Outside, first line layer 2a and the second line layer 2c is electrically connected logical so that the circuit layout on first line layer 2a can extend To the second line layer 2c, make the circuit layout on lamp plate 2 more polynary.Furthermore the circuit location wiring of script becomes from single layer Bilayer, the line layer monolayer area on lamp plate 2, that is, the size in width direction, can further reduce, batch is allowed to be pasted The lamp plate quantity of dress light source 202 can increase, and promote productivity.

Further, lamp plate 2 be equipped with light source 202 and protrude from the first line layer 2a in the terminal region of fluorescent tube 1 and Second line layer 2c can also be directly utilized to realize the circuit layout of power supply module, and allow the directly configuration of power supply module can It scratches and is achieved on formula circuit soft board.

If lamp plate 2 is not fixed along the axial both ends of fluorescent tube 1 on the inner peripheral surface of fluorescent tube 1, if connected using conducting wire, During subsequently moving, due to both ends freedom, it is easy to happen shaking during subsequent move, thus makes it possible to conducting wire It is broken.Therefore lamp plate 2 and the connection type of power supply 5 are preferentially selected as welding.It specifically, referring to Fig.1, can be directly by lamp Plate 2 is welded in after getting over the transition region 103 of strengthening section structure on the output end of power supply 5, is removed the use of conducting wire from, is improved product Stability.

As shown in Figure 3A, the specific practice can be that the output end of power supply 5 is reserved power pad a, and on power pad a It stays tin, so that the thickness of tin on pad increases, facilitates welding, correspondingly, also reserving light source pad on the end of lamp plate 2 B, and the power pad a of 5 output end of power supply and the light source pad b of lamp plate 2 are welded together.By the plane definition where pad For front, then lamp plate 2 is docked with the connection type of power supply 5 with the positive pad of the two the most firm, but is welded in welding It is pressed in the back side of lamp plate 2 for pressure head typical case, to heat scolding tin across lamp plate 2, is easier the problem of reliability occur.Such as Fruit in certain embodiments, will output hole, then it is face-up superimposed upon power supply 5 among 2 positive light source pad b of lamp plate It is welded on positive power pad a, then weld pressure head directly can heat melting to scolding tin, to being relatively easy on Practical Operation It realizes.

As shown in Figure 3A, in above-described embodiment, the bendable circuit soft board as lamp plate 2 is largely fixed on fluorescent tube 1 On inner peripheral surface, only at both ends it is not fixed on the inner peripheral surface of fluorescent tube 1 (referring to Fig. 7), is not fixed on 1 inner peripheral surface of fluorescent tube Lamp plate 2 form a freedom portion 21 (referring to Fig. 1 and 7), and lamp plate 2 is fixed on the inner peripheral surface of fluorescent tube 1.Freedom portion 21 has Above-mentioned pad b.In assembly, one end of freedom portion 21 and the welding of power supply 5 can drive freedom portion 21 to 1 internal contraction of fluorescent tube. It is worth noting that, when there are the bendable circuit soft board as lamp plate 2 two sandwich circuit layer 2a and 2c to press from both sides a dielectric as shown in Figure 7 When the structure of layer 2b, aforementioned lamp plate 2, which is not provided with light source 202 and protrudes from the terminal region of fluorescent tube 1, can be used as freedom portion 21, and allow Freedom portion 21 realizes the connection of two sandwich circuit layers and the circuit layout of power supply module.

In addition, in the pin design of LED straight lamps, it can be each single pin (totally two pins) of both-end, can also be The framework of each double pins (totally four pins) of both-end.So can be used double into the situation of electricity in the both-end from LED straight lamps Each at least pin in end is typically referred to as Line to receive the conducting wire being arranged between each pin of this both-end of external drive signal Or Neutral conducting wires, and can be used for the input and transmission of signal.Fig. 3 B are according to an embodiment LED straight lamps in its both ends lamp The conducting wire schematic diagram being arranged along lamp plate (such as bendable circuit soft board) between head.Referring to Fig. 3 B, the LED straight lamps of this exposure It may include fluorescent tube, lamp cap (being not depicted in Fig. 3 B), lamp plate 2, short circuit board 253 and inductance 526 in embodiment.The lamp Respectively there is an at least pin at pipe both ends, for receiving external drive voltage.The lamp cap is arranged in the lamp tube ends, and such as Fig. 3 B It is shown the short circuit board 253 (at least partly electronic building brick) of fluorescent tube left end and right end can be respectively in the lamp at the both ends In head.The lamp plate 2 is arranged in the fluorescent tube, and includes LED module, and the LED module includes LED unit 632.Institute It states short circuit board 253 to be electrically connected with the lamp plate 2, this electrical connection (such as through pad) may include first end point (L) for connecting Connect an at least pin for the lamp tube ends, second (+or LED+) and third endpoint (- or LED-) it is respectively used to connection institute State LED unit 632 positive and negative anodes and the 4th endpoint (GND or ground) for meeting reference potential optionally and typically, The reference potential is defined as the ground connection of the power module of the current potential or the 4th endpoint system on ground for this LED straight lamp Purpose.And is being implemented between 526 system of inductance is serially connected in the 4th endpoint of the short circuit board 253 of the lamp tube ends In example, inductance 526 may include such as I-shaped inductance (choke inductor or Dual-Inline-Package inductor)。

More specifically, because in straight lamp design of the both-end into electricity, may in the lamp cap of both ends each setting unit electricity Source circuit (for example, about 21W), so may require that the conducting wire L (being input signal cable) for prolonging Shen along lamp plate setting, and this conducting wire L With conducting wire LED+ very close to therefore will produce parasitic capacitance between the two.The parasitism can be penetrated by the High-frequency Interference of conducting wire LED+ Capacitance and reflect conducting wire L, and then generate the EMI effects that can be detected.

Therefore, in the present embodiment, gone here and there through between the 4th endpoint of the short circuit board 253 in the lamp tube ends Connect the configuration of inductance 526, can through inductance 526 in high frequency the characteristic with high impedance come block High-frequency Interference signal return Road, and then the High-frequency Interference on conducting wire LED+ is eliminated, to avoid parasitic capacitance reflection to the EMI effects on conducting wire L.Change speech It, the function of inductance 526 is eliminated or is reduced as aforementioned wire L (along lamp plate 2 between the first end point at both ends) is caused EMI or influenced by EMI, therefore improve in fluorescent tube power supply signal transmission (comprising by conducting wire L, conducting wire LED+ and leading Line LED-) and LED light quality.Therefore such LED straight lamps with inductance 526 effectively reduce the EMI effects of conducting wire L Furthermore such LED straight lamps also may include installing detecting module, wherein the installation detecting module is detecting the LED straight tubes The installation condition of lamp and a lamp holder.

Fig. 5 and Fig. 6 are please referred to, it is in other embodiments, above-mentioned through the fixed lamp plate 2 of welding manner and power supply 5 It can be replaced with the circuit board group component 25 equipped with power supply module 250.Circuit board group component 25 has 251 He of a long circuit board One short circuit board 253, long circuit board 251 and short circuit board 253 are bonded are fixed through gluing mode each other, short circuit board 253 In 251 adjacent peripheral edges of long circuit board.There is power supply module 25 on short circuit board 253, be integrally formed power supply.253 material of short circuit board The longer circuit board 251 of matter is hard, to have the function that Power Support module 250.

Long circuit board 251 can be above-mentioned bendable circuit soft board or flexible base board as lamp plate 2, and have Fig. 2 institutes The line layer 2a shown.The mode of line layer 2a and power supply module 250 electrical connection of lamp plate 2 can have different according to actual use situation Electric connection mode.As shown in figure 5, the circuit that will be electrically connected with power supply module 250 on power supply module 250 and long circuit board 251 Layer 2a is all located at the same side of short circuit board 253, and power supply module 250 is directly electrically connected with long circuit board 251.As shown in fig. 6, The line layer 2a systems being electrically connected with power supply module 250 are located at short circuit board on power supply module 250 and long circuit board 251 253 both sides, power supply module 250 penetrate the line layer 2a electrical connections of too short circuit board 253 and lamp plate 2.

Fig. 4 A to Fig. 4 D are please referred to, Fig. 4 A to Fig. 4 D are connected between lamp plate 200 and the power supply circuit board 420 of power supply 400 The schematic diagram of structure and connection type.In the present embodiment, lamp plate 200 and freedom portion are identical structure, and freedom portion is lamp plate The part for being used for connecting power supply circuit board 420 of 200 opposite end.After the part is connect with power supply circuit board 420, in LED In " Z " font (as shown in Figure 4 A, being also in other examples " S " font) in straight lamp, can improve in this way lamp plate from By the risk for the stripping solder joint that portion causes in weld, the stability of welding is improved, avoids generating the danger struck sparks.Lamp plate 200 For flexible circuit board, and lamp plate 200 includes the circuit layer 200a and circuit protecting layer 200c of stacking.Wherein, circuit layer 200a It is defined as the first face 2001 on one side far from circuit protecting layer 200c, one sides of the circuit protecting layer 200c far from circuit layer 200a is fixed Justice is the second face 2002, that is to say, that the first face 2001 and the second face 2002 are two sides opposite on lamp plate 200.Multiple LED lights Source 202 is set on the first face 2001 and is electrically connected circuit layer 200a.Circuit protecting layer 200c is polyimide layer (Polyimide, PI) is not easy heat conduction, but has the effect of protecting circuit.First face 2001 of lamp plate 200 has pad b, Scolding tin g is placed on pad b, and the welding ends of lamp plate 200 has notch f.Power supply circuit board 420 includes power circuit layer 420a, And the definition of power supply circuit board 420 has opposite the first face 421 and the second face 422, the second face 422 to be located at the tool of power supply circuit board 420 There is the side of power circuit layer 420a.First face 421 of power supply circuit board 420 is respectively formed with the second face 422 to correspond to each other Pad a, scolding tin g can be formed on pad a.Optimization in terms of stablizing optimization and automation processing as further welding, Lamp plate 200 is positioned over the lower section (with reference to the direction of Fig. 4 B) of power supply circuit board 420 by the present embodiment, that is to say, that lamp plate 200 First face 2001 can be connected to the second face 422 of power supply circuit board 420.In various embodiments, the first face 421 is located at power supply Circuit board 420 has the side of power circuit layer 420a, and the first face 2001 of lamp plate 200 can be connected to power supply circuit board 420 Second face 422.

As shown in Fig. 4 C and Fig. 4 D, when carrying out the welding of lamp plate 200 and power supply circuit board 420, first by the electricity of lamp plate 200 Being positioned in supporting table 42 of road protective layer 200C (the second face 2002 contact supporting table 42 of lamp plate 200), allows power supply circuit board The pad a in 420 the second face 422 and the pad b in the first face 2001 of lamp plate 200 directly come into full contact with, then to weld pressure head 41 It is pressed on the weld of lamp plate 200 and power supply circuit board 420.At this point, the heat of welding pressure head 41 can pass through power supply circuit board 420 The pad a in the first face 421 is passed directly to the pad b in the first face 2001 of lamp plate 200, and the heat for welding pressure head 41 will not be by The relatively poor circuit protecting layer 200c of thermal conductivity influences, and further improves the pad a of lamp plate 200 and power supply circuit board 420 With efficiency and stability of the joints pad b in welding.Meanwhile the pad b and power circuit in the first face 2001 of lamp plate 200 The pad a in the second face 422 of plate 420 is the welding that is in contact, and the pad in the first face 421 of power supply circuit board 420 is two and does not connect The pad (also referred to as weld pad or power pad) connect, is connected with the pad b of lamp plate respectively.As shown in Figure 4 C, power supply circuit board 420 and lamp plate 200 welded completely by scolding tin g, between dummy line M and N in figure 4 c for power supply circuit board 420, lamp The main attachment portion of plate 200 and scolding tin g, be sequentially followed successively by from top to bottom the first face 421 of power supply circuit board 420 pad a, Power circuit layer 420a, the pad a in the second face 422 of power supply circuit board 420, the circuit layer 200a of lamp plate 200, lamp plate 200 Circuit protecting layer 200C.200 integrated structure of power supply circuit board 420 and lamp plate sequentially formed according to this is more stable secured.

In different embodiments, another layer of circuit protecting layer (PI can be also equipped on the first face 2001 of circuit layer 200a again Layer), that is, circuit layer 200a can be sandwiched between two-tier circuit protective layer so that the first face 2001 of circuit layer 200a also can quilt Circuit protecting layer is protected, and only exposed portion circuit layer 200a (part for being equipped with pad b) is used for the weldering with power supply circuit board 420 Disk a connects.At this point, the circuit protecting layer on the first face 2001 of the bottom part meeting contact layer 200a of light source 202, and Another part then can contact layer 200a.

In addition to this, using the design scheme of Fig. 4 A to Fig. 4 D, several holes are set on the pad a of power supply circuit board 420 Hole h (preferably, hole h is multiple, and e.g., 2,3,5,7,9 etc., specifically depending on the area of pad, hole h It is alternatively other shapes of through-hole) after placing scolding tin, in automatic welding program, when welding pressure head 41 is pressed downwardly onto automatically When power supply circuit board 420, scolding tin can be pushed into due to pressure thus in hole h, meet automation processing needs well.Electricity Several holes h is all arranged in each pad a of source circuit plate 420, and depending on the area of pad a, the quantity of hole h can be identical, It can be different.In practical application, power supply circuit board 420 can be made of two or more modules, be configured in the both sides of lamp plate.

The pad of flexible circuit board configuration is two unconnected pad b (also referred to as weld pad or light source pad), difference It is electrically connected with the positive and negative anodes of light source, the size of weld pad is about 3.5 × 2mm, also there is pad corresponding thereto on power supply circuit board Scolding tin is reserved in the top of a, weld pad, and the thickness of scolding tin can be 0.1~0.7mm, and preferred values are that 0.3~0.5mm is more appropriate, with 0.4mm is best.One insulating gaps f can be set between two weld pads, avoid two weld pads during the welding process because of scolding tin It is welded together and causes electrical short, location hole d can be also set at the rear of insulating gaps f in addition, for allowing automatic welding Board can correctly judge the correct position of pad b.

In other embodiments, the diameter of the hole h of the pad a of power supply circuit board can be 1~2mm, preferably 1.2~ 1.8mm, most preferably 1.5mm, too small, the tin of welding is not easy to pass through.As the pad a and flexible circuit board of power supply circuit board Pad b when welding together, the tin of welding can pass through the hole h, then be deposited in cooling solidifying above hole h Knot forms the ball structure formed by scolding tin g having more than hole h diameters, and it seems nail that this ball structure g, which can be played, Function more can enhance and electrically connect because of the effect of soldered ball g structures other than being fixed through the tin between pad a and pad b What is connect is firm fixed.

In other embodiments, perforation (the hole h classes of structure and pad a can be also arranged in the pad b of flexible circuit board Seemingly, quantity is depending on the area of pad b, such as 1,2,3,4 etc.), Bian Yuan of the perforation apart from flexible circuit board≤ When 1mm, the tin of welding can be deposited in hole top edges across the reach through hole, and excessive tin also can be from bendable electricity The edge of road plate flows back toward lower section, is then coagulated together with the tin on pad a, structure is like that a rivet will be bendable Circuit board is firmly followed closely on power supply circuit board, has reliable electricity connection function in this way.In addition, the break-through bore dia is too small Tin can be hindered to pass through, therefore the reach through hole of pad b can also be changed to notch f, the tin of welding penetrates the notch weldering Disk a and pad b electrical connections are fixed, and having more tin after cooling condensation forms the soldered ball having more than break-through bore dia, this Ball structure can allow the crystallized ability of electric connection structure to enhance.

Coordinate Fig. 5 and Fig. 6, short circuit board 253 be distinguished into the first short circuit board being connect with 251 both ends of long circuit board and Second short circuit board, and the first short circuit board of short circuit board 253 that the electronic building brick in power supply module is respectively set at And second on short circuit board.The length dimension of first short circuit board and the second short circuit board can also be differed with rough consistent It causes.Generally, the first short circuit board (left side circuit of the right-hand circuit board of the short circuit board 253 of Fig. 5 and the short circuit board 253 of Fig. 6 Plate) length dimension be the second short circuit board length dimension 30%~80%.The length ruler of more preferably first short circuit board The 1/3~2/3 of the very little length dimension for being the second short circuit board.In this embodiment, the length dimension of the first short circuit board is substantially The half of the size of second short circuit board.The size of second short circuit board between 15mm~65mm (specifically regarding application scenario and It is fixed).In the lamp cap of one end that the first short circuit board is set to LED straight lamps and the second short circuit board to be set to LED straight In the lamp cap of the opposite other end of spot.

For example, can be that two or more capacitances is formed in parallel in the capacitance practical application of driving circuit.Power supply The capacitance of driving circuit is at least partially or fully set on the first short circuit board of short circuit board 253 in module.That is, rectified current Road, filter circuit, the inductance of driving circuit, controller, switching switch, diode etc. may be contained within the second of short circuit board 253 On short circuit board.And inductance, controller, switching switch etc. are the higher component of temperature in electronic building brick, with part or all of electricity It is installed with and is placed on different circuit boards, capacitance (especially electrolytic capacitor) can be made to avoid the longevity because of the higher component of temperature to capacitance Life impacts, and improves capacitance reliability.Further, it can be also spatially separated because of capacitance and rectification circuit and filter circuit, Solve the problems, such as EMI.

In addition, " above " that above-described embodiment refers to refers to face on the light direction namely lamp plate of light source where light source is Above, and back to the lamp plate of light source be " below ".Described " above " and " following " is merely to clearly illustrate this in conjunction with attached drawing Utility model is not that the upper surface of limitations of the present invention, such as the lamp plate are equipped with pad, is not to say that lamp plate can only It is equipped with pad above, it is understood that the wherein at least one side of lamp plate is equipped with pad.It is " soft board " described in the utility model and " hard In contrast plate " is also that i.e. hardboard is not necessarily referring to the hard plate of material with respect to being hardboard for soft board.

When direct current signal is as external drive signal, the power supply module of LED straight lamps can be omitted rectification circuit.

The utility model LED straight lamps in each embodiment realization with as previously described.It needs to point out, each In embodiment, for same root LED straight lamps, including " lamp plate is bendable circuit soft board or flexible base board ", " lamp Fluorescent tube length of the axis projection length of plate more than the LED straight lamps ", " freedom portion is in " Z " font or " S " in straight lamp Font ", " is protected in the first face of circuit layer " lamp plate includes the circuit layer and circuit protecting layer of stacking " equipped with second circuit Layer ", " pad is provided on lamp plate ", " LED straight lamps have long circuit board and short circuit board ", " long circuit board is bendable electricity Road soft board or flexible base board ", " short circuit board includes the first short circuit board and the second short circuit board ", " capacitance in power supply module At least partially or fully be set on the first short circuit board of short circuit board " feature, can only single in practice or one Ground application so that only implement a feature or implement several features simultaneously.

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 circuit protecting layer and a circuit layer.

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 to be bonded fixed by bonding way each other, short circuit board Positioned at long circuit board adjacent peripheral edges.There is power supply module on short circuit board, be integrally formed power supply, short circuit board is than long circuit board Firmly.”

Can be single-ended double pins (totally two pins, other end non-connection pin), both-end in the pin design of power supply module The framework of each list pin (totally two pins), each double pins (totally four pins) of both-end.It singly connects single-ended double pins and both-end are each Under the framework of foot, it is applicable to the rectification circuit design of single rectification circuit.Under the framework of each double pins of both-end, it is applicable to The rectification circuit of double rectification circuits designs, and receives external drive using each any pin of both-end or any single-ended double pins Signal.

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

Claims (20)

1. a kind of LED straight lamps, including being provided with the lamp plate of LED light source and being provided with the power supply circuit board of power supply, feature exists In,

The lamp plate is bendable circuit soft board or flexible base board and is directly formed electrically by welding with the power supply circuit board Connection；

The lamp plate is with the part being fixed on the inner peripheral surface of fluorescent tube and positioned at the lamp plate both ends and is not fixed in the lamp Part on the inner peripheral surface of pipe, wherein the part being not fixed on the fluorescent tube inner peripheral surface forms a freedom portion, the freedom portion Connect the power supply circuit board；

The freedom portion is in " Z " font or " S " font in the LED straight lamps.

2. LED straight lamps according to claim 1, which is characterized in that the lamp plate includes the first face and the second face, described First face and second face are two sides opposite on the lamp plate, and first face is equipped with multiple LED light sources.

3. LED straight lamps according to claim 2, which is characterized in that the power supply circuit board has the first opposite face It is connected to the second face of the power supply circuit board with first face in the second face, the lamp plate.

4. LED straight lamps according to claim 2, which is characterized in that the first face of the circuit layer is protected equipped with circuit Sheath.

5. LED straight lamps according to claim 1 or 2 or 3, which is characterized in that pad is provided on the lamp plate, it is described Freedom portion has the pad；It is provided with pad on the power supply circuit board；The pad of the lamp plate and the power circuit The pad of plate makes the power supply circuit board and the lamp plate electrical communication by being welded to connect, by welding.

6. LED straight lamps according to claim 5, which is characterized in that be arranged on the pad of the power supply circuit board several A hole.

7. LED straight lamps according to claim 5, which is characterized in that the first face of the lamp plate has the pad, institute It states and places scolding tin on pad, and the welding ends of the lamp plate has notch.

8. LED straight lamps according to any one of claims 1 to 4, which is characterized in that the bendable circuit soft board is tightly attached to On the tube wall.

9. LED straight lamps according to claim 5, which is characterized in that the pad of the lamp plate configuration is two and is not connected to Pad.

10. LED straight lamps according to any one of claims 1 to 4, which is characterized in that further include lamp cap, the lamp cap setting In the lamp tube ends.

11. a kind of LED straight lamps, which is characterized in that including a fluorescent tube, one be set to the fluorescent tube in long circuit board, set respectively In two lamp caps of the lamp tube ends, and the short circuit board that is set in described two lamp caps, the long circuit board and institute It states short circuit board to fix each other by welding fitting, the short longer circuit board of circuit board material is hard, on the short circuit board has There is power supply module；The length of the long circuit board is more than the fluorescent tube, and a side surface portion of the long circuit board is adhesively fixed In the inner peripheral surface of the fluorescent tube, and the both ends of the long circuit board are not fixed on the inner peripheral surface of the fluorescent tube, the long circuit Plate is bendable circuit soft board or flexible base board, and the long circuit board both ends are not fixed the portion on the inner peripheral surface of the fluorescent tube Part forms a freedom portion, and the freedom portion connects the short circuit board, and the freedom portion is in " Z " word in the LED straight lamps Shape or " S " font.

12. LED straight lamps according to claim 11, which is characterized in that the short circuit board includes the first short circuit board With the second short circuit board, the first short circuit board and the second short circuit board are connected to the both ends of long circuit board, and The first short circuit board and the second short circuit board are separately positioned in described two lamp caps.

13. LED straight lamps according to claim 12, which is characterized in that the first short circuit board and described second short Circuit board length is inconsistent.

14. LED straight lamps according to claim 12, which is characterized in that the first short circuit board and described second short Circuit board length is consistent.

15. LED straight lamps according to claim 13, which is characterized in that the length of the first short circuit board is described The 30%~80% of the length of second short circuit board.

16. LED straight lamps according to claim 12, which is characterized in that the capacitance in the power supply module is at least partly Or it is all set on the first short circuit board of short circuit board.

17. LED straight lamps according to claim 16, which is characterized in that the electronic component in the power supply module also wraps Containing rectification circuit, controller, switching switchs and inductance, other electronics structures in addition to the capacitance in the power supply module Part may be contained on the described second short circuit board.

18. a kind of LED straight lamps, including being provided with the lamp plate of LED light source and being provided with the power supply circuit board of power supply, feature exists In,

The lamp plate is bendable circuit soft board or flexible base board and is directly formed electrically by welding with the power supply circuit board Connection, and the axis projection length of the lamp plate is more than the fluorescent tube length of the LED straight lamps；

The lamp plate is with the part being fixed on the inner peripheral surface of fluorescent tube and positioned at the lamp plate both ends and is not fixed in the lamp Part on the inner peripheral surface of pipe, wherein the part being not fixed on the fluorescent tube inner peripheral surface forms a freedom portion, the freedom portion Connect the power supply circuit board；

The lamp plate includes the first face and the second face, and first face and second face are two sides opposite on the lamp plate, First face is equipped with multiple LED light sources；

The power supply circuit board has the first opposite face and the second face, and the first face of the lamp plate is connected to the power circuit Second face of plate.

19. LED straight lamps according to claim 18, which is characterized in that the freedom portion is in the LED straight lamps " Z " font or " S " font.

20. the LED straight lamps according to claim 18 or 19, which is characterized in that pad is provided on the lamp plate, it is described Freedom portion has the pad；It is provided with pad on the power supply circuit board；The pad of the lamp plate and the power circuit The pad of plate makes the power supply circuit board and the lamp plate electrical communication by being welded to connect, by welding.