CN213930459U - Lamp and light source component thereof - Google Patents

Abstract

The embodiment of the utility model discloses lamps and lanterns and light source subassembly thereof, its light source subassembly includes base plate and a plurality of LED lamp pearls of array arrangement on the base plate, and the base plate is including being located the first region that base plate central point put and surrounding in first region second region all around, and the density of arranging of the LED lamp pearl in second region is greater than the density of arranging of the LED lamp pearl in first region. The embodiment of the utility model provides an in lamps and lanterns and light source subassembly, LED lamp pearl through the second region is arranged density and is greater than the LED lamp pearl density of arranging in first region for the local LED lamp pearl that substrate edge circulation of air is good is arranged densely, and the local LED lamp pearl that substrate center circulation of air is poor arranges sparsely, promotes the ventilation cooling effect of LED lamp pearl under the circumstances of assurance illumination intensity, and then promotes the life of lamps and lanterns.

Description

Lamp and light source component thereof

Technical Field

The embodiment of the utility model provides a belong to the lighting technology field, specifically speaking relates to a lamps and lanterns and light source subassembly thereof.

Background

A light Emitting diode (led), which is a solid semiconductor device capable of converting electrical energy into visible light, can directly convert electricity into light. The LED lamp has the advantages of energy conservation, environmental protection, long service life, good lighting effect and the like, and is widely applied to the technical field of lighting.

However, to obtain the light source of large tracts of land high illuminance, generally need powerful LED lamp pearl and a plurality of pointolite to constitute the area source, and the lamp pearl power is big more the heat that produces more at the during operation more, and the great LED lamp pearl of more powers of drive needs more drive chip and rectifier circuit etc. in addition can further increase the heat that lamps and lanterns produced at the during operation, if these heats can not in time dispel then can direct influence the normal use and the life of lamps and lanterns.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the present invention provides a lamp and a light source assembly thereof, which are used to solve at least one technical problem existing in current-stage LED lamps.

In a first aspect, an embodiment of the present invention provides a light source assembly, which includes a substrate and a plurality of LED beads arranged in an array on the substrate;

the substrate comprises a first area positioned in the center of the substrate and a second area surrounding the first area;

the LED lamp bead arrangement density of the second area is greater than that of the first area.

Further, still including establishing outside the second area heating element on the base plate, the LED lamp pearl that is close to in the second area heating element arranges the density and is less than keep away from heating element LED lamp pearl that arranges the density.

Further, the first region comprises a plurality of rows of LED lamp beads, each row of LED lamp beads comprises a plurality of LED lamp beads arranged at intervals, and the LED lamp beads are arranged at intervals and in a staggered mode.

Further, the heating element comprises a bridge rectifier for rectification, and the LED lamp bead arrangement density close to the bridge rectifier in the second area is smaller than that far away from the bridge rectifier.

Further, the heating element comprises a driving chip, and the LED lamp bead arrangement density close to the driving chip in the second area is smaller than the LED lamp bead arrangement density far away from the driving chip.

Further, a heat insulation groove is formed in the substrate, and the heat insulation groove is formed between the second area and the heating element.

Further, the number of the heat insulation grooves is not less than 2, and two adjacent heat insulation grooves are arranged at intervals in a staggered mode.

Further, the heating component comprises a plurality of driving chip sets, each driving chip set comprises at least one driving chip, and the plurality of driving chip sets are arranged at intervals in a staggered mode.

Further, the number of the driving chips is positively correlated with the sum of the powers of the plurality of LED lamp beads.

Furthermore, the substrate is in a first square shape, the first area and the second area are located above the first square shape, and the heating element is located below the first square shape;

the first area is in a second square shape, the second area surrounds the periphery of the second square shape in a square shape, and the second area comprises a first sub-area positioned above the second square shape, a second sub-area positioned below the second square shape and third sub-areas positioned on the left side and the right side of the second square shape;

the LED lamp bead arrangement density of the first sub-area, the LED lamp bead arrangement density of the third sub-area and the LED lamp bead arrangement density of the second sub-area are reduced in sequence.

Further, the LED lamp bead arrangement density of the first sub-area and the second sub-area is gradually increased from the middle to two sides.

Further, the arrangement density of the LED lamp beads in the third sub-area is gradually reduced from top to bottom

In a second aspect, embodiments of the present invention further provide a lamp, which includes the light source module described in any one of the above first aspects.

According to the utility model provides a lamps and lanterns and light source subassembly, the light source subassembly includes base plate and a plurality of LED lamp pearls of array arrangement on the base plate, the base plate is including the first region that is located base plate central point and surrounding in first region second region all around, the density of arranging through the LED lamp pearl in second region is greater than the density of arranging of the LED lamp pearl in first region, make the local LED lamp pearl that substrate edge circulation of air is good arrange denseness, and the local LED lamp pearl that substrate center circulation of air is poor arranges sparsely, promote the ventilation cooling effect of LED lamp pearl under the circumstances of assurance illumination intensity, and then promote the life of lamps and lanterns.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an exploded schematic view of a three-dimensional structure of a light source assembly according to an embodiment of the present invention;

fig. 2 is a schematic plane structure diagram of a light source assembly according to an embodiment of the present invention;

fig. 3 is an exploded schematic view of another three-dimensional structure of a light source assembly according to an embodiment of the present invention;

fig. 4 is a schematic view of another plane structure of a light source assembly according to an embodiment of the present invention.

Detailed Description

The following detailed description will be made with reference to the accompanying drawings and examples, so that how to implement the technical means of the present invention to solve the technical problems and achieve the technical effects can be fully understood and implemented.

As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect. Furthermore, the terms "coupled" or "electrically connected" are intended to encompass any direct or indirect electrical coupling. Thus, if a first device couples to a second device, that connection may be through a direct electrical coupling or through an indirect electrical coupling via other devices and couplings. The following description is of the preferred embodiment of the present invention, and is made for the purpose of illustrating the general principles of the invention and not for the purpose of limiting the invention. The protection scope of the present invention is subject to the limitations defined by the appended claims.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

Referring to fig. 1, a three-dimensional explosion diagram of a light source assembly according to an embodiment of the present invention is shown, the light source assembly includes a substrate 10 and a plurality of LED lamp beads 20 arranged on the substrate 10 in an array manner.

Please refer to fig. 2, which is a schematic plane structure diagram of a light source assembly according to an embodiment of the present invention, the substrate 10 includes a first region 110 located at a central position of the substrate 10 and a second region 120 surrounding the first region 110; the arrangement density of the LED beads 20 in the second region 120 is greater than that of the LED beads 20 in the first region 110.

Specifically, the specific shape of the substrate 10 includes, but is not limited to, a square shape, a circular shape, an oval shape, etc., the embodiment of the present invention is described by way of example with a square structure, but does not constitute a limitation on the shape of the substrate 10, and the substrate 10 is a circuit board for carrying other electronic components of the light source assembly. The LED lamp beads 20 are arranged on the substrate 10 in an array manner to form a surface light source on the substrate 10. The first region 110 is located at the center of the substrate 10, and has a size and a shape determined according to the size of the substrate 10 and the specification of the light source module, and the second region 120 surrounds the outer periphery of the first region 110, i.e., the second region 120 is generally the region from the edge of the first region 110 to the edge of the substrate 10.

The embodiment of the utility model provides a do on arranging of LED lamp pearl 20 the density of arranging of first region 110 is less than the density of arranging of second region 120, promptly on the base plate 10 first region 110 LED lamp pearl 20 arrange relatively sparsely, and on the base plate 10 second region 120 LED lamp pearl 20 arrange relatively densely. Therefore, as the central area of the substrate 10, namely the first area 110, has poor air circulation, the arrangement of the LED beads 20 with relatively sparse arrangement can effectively avoid excessive heat accumulation during operation; through because the marginal area of base plate 10, promptly the second region 120, the air circulation nature is better, through relatively denser LED lamp pearl 20 arranges and can effectually promote the illumination intensity of light source subassembly to remedy the centre LED lamp pearl 20 is sparse not enough of illumination intensity that causes, makes the light source subassembly both can satisfy better illumination intensity, can avoid during operation again LED lamp pearl 20 heat excessively gathers, and then promotes the illuminating effect and the life of light source subassembly.

Further, please refer to fig. 3-4, in other preferred embodiments of the present invention, the light source module further includes a heating component 30 disposed outside the second region 120 on the substrate 10, and the arrangement density of the LED lamp beads 20 near the heating component 30 in the second region 120 is less than the arrangement density of the LED lamp beads 20 far away from the heating component 30.

Specifically, the substrate 10 includes, in addition to the LED lamp beads 20, electronic components for supporting the conversion of electrical energy into light energy for the LED lamp beads 20, where the electronic components include a driving chip, a discharge tube, a capacitor, a bridge stack, a fuse, various resistors, and the like, and the electronic components generate heat during operation, that is, the electronic components are referred to as the heating components 30. In this embodiment, the arrangement density of the LED lamp beads 20 close to the heating element 30 in the second region 120 is less than the arrangement density of the LED lamp beads 20 far away from the heating element 30, that is, the closer the LED lamp beads 20 are to the heating element 30, the more sparse the arrangement of the LED lamp beads 20 is, the more dense the arrangement of the LED lamp beads 20 is, the farther the LED lamp beads 30 are from the heating element 30.

In other preferred embodiments of the present invention, the arrangement of the LED lamp beads 20 in the first region 110 also satisfies the above rule.

So, through being close to the position of components and parts 30 that generate heat suitably reduces LED lamp pearl 20 arranges, can further effectually avoid the excessive gathering of heat of light source subassembly is favorable to the light source subassembly carries out whole high-efficient heat dissipation to further promote the illuminating effect and the life of light source subassembly.

In addition, in one preferred embodiment of this embodiment, the first region 110 includes a plurality of rows of LED beads 20, each row of LED beads 20 includes a plurality of LED beads 20 arranged at intervals, and the plurality of rows of LED beads 20 are arranged at intervals and in a staggered manner.

Specifically, a plurality of LED lamp pearl 20 is arranged in rows and columns, and every row of lamp pearl are separated by an interval, and every row of lamp pearl include a plurality of intervals arrange LED lamp pearl 20, wherein interval, dislocation are arranged between multirow LED lamp pearl 20, two adjacent rows promptly LED lamp pearl 20 staggers each other in longitudinal direction position, and like this, two adjacent rows LED lamp pearl 20 staggers each other in transverse direction position, so design, can effectively promote two adjacent distance between LED lamp pearl 20, avoid two lamp pearls to influence the life of this lamp pearl in during operation heat gathering, and then can further effectual promotion the life of light source subassembly.

Further, in one embodiment of the present invention, the heating component 30 includes a bridge rectifier 310 for rectification, and the LED lamp beads 20 close to the bridge rectifier 310 in the second region 120 are arranged at a density lower than that of the LED lamp beads away from the bridge rectifier 310.

Specifically, the bridge rectifier 310 is a rectifying circuit of the light source assembly, and is configured to rectify an alternating current into a direct current to drive the LED lamp bead 20 to emit light, two bridge rectifiers 310 are generally present in the light source assembly, and correspond to an anode and a cathode of a power supply, in this embodiment, in order to avoid that the two bridge rectifiers 310 abut against each other to generate local heat accumulation to affect the circuit, the two bridge rectifiers 310 are disposed at an interval. In this embodiment, the closer to the bridge rectifier 310 the more sparse the arrangement of the LED lamp beads 20 is, the farther from the bridge rectifier 310 the denser the arrangement of the LED lamp beads 20 is, so that the position close to the bridge rectifier 310 is properly reduced the arrangement of the LED lamp beads 20, thereby further effectively avoiding the excessive heat accumulation of the light source assembly, facilitating the overall efficient heat dissipation of the light source assembly, and further improving the lighting effect and the service life of the light source assembly.

The utility model discloses a another embodiment, heating element 30 includes driver chip 320, be close to in the second region driver chip 320 LED lamp pearl 20 density of arranging is less than keeps away from driver chip 320 LED lamp pearl 20 density of arranging.

Here, the driving chip 320 is the integrated circuit that provides the electric energy support for the LED lamp bead 20, and the LED lamp bead 20 generates a large amount of heat when being turned on, in this embodiment, the closer to the driving chip 320 the more sparse the arrangement of the LED lamp bead 20 is, the farther from the driving chip 320 the more dense the arrangement of the LED lamp bead 20 is, so that the position close to the driving chip 320 is properly reduced to arrange the LED lamp bead 20, thereby further effectively avoiding the excessive heat accumulation of the light source module, and being beneficial to the light source module to perform overall efficient heat dissipation, thereby further improving the illumination effect and the service life of the light source module.

Further, in another preferred embodiment of the present invention, a heat insulation groove 40 is provided on the substrate 10, and the heat insulation groove 40 is provided between the second region 120 and the heat generating component 30.

Specifically, in this embodiment, the heat insulation groove 40 is disposed in the second region 120 and the heating element 30, the medium in the heat insulation groove 40 includes but is not limited to air, and because the thermal conductivity of air is poor, the heat generated by the LED lamp bead 20 in the second region 120 and the heat generated by the heating element 30 can be prevented from being mutually transferred and being gathered, and meanwhile, the air circulation can be enhanced by disposing the heat insulation groove 40, so that the heat dissipation effect on the LED lamp bead 20 is further improved, and the overall efficient heat dissipation of the light source assembly is facilitated, thereby further improving the lighting effect and the service life of the light source assembly.

Furthermore, the number of the heat insulation slots 10 is not less than 2, and two adjacent heat insulation slots 40 are arranged at intervals and in a staggered manner.

Specifically, in order to promote the intensity of base plate 10, heat insulation tank 10 is difficult to set up longer length, but again in order to with on the second region 120 the heat that LED lamp pearl 20 produced with the heat that components and parts 30 produced that generate heat separate and carry out independent heat dissipation, avoids the heat gathering, then needs to set up many heat insulation tank 10, wherein, adjacent two interval, dislocation are arranged between the heat insulation tank 40, so, can be at the heat transfer on a plurality of dimensions separation both sides, can increase the regional area of circulation of air simultaneously, and then further be favorable to the light source subassembly carries out whole high-efficient heat dissipation to further promote the illuminating effect and the life of light source subassembly.

In addition, in another embodiment of the present invention, the heat-generating component 30 includes a plurality of the driving chip sets 330, each of the driving chip sets 330 includes at least one driving chip 320, and the driving chip sets 330 are arranged at intervals and in a staggered manner.

Specifically, the plurality of driving chips 320 are arranged in groups to form a plurality of driving chip sets 330, each driving chip set 330 has at least one driving chip 320, and the plurality of driving chip sets 330 are arranged at different positions on the substrate 10, so that the design can effectively prevent the heat-generating integrated circuit from gathering in a certain area, thereby affecting the service life of the light source assembly; meanwhile, the driving chip groups 330 are arranged at intervals and in a staggered manner, so that the heat-generating integrated circuit can be further prevented from being gathered in a certain area, the heat dissipation area is increased, the heat dissipation efficiency is improved, and the service life of the light source component is further prolonged.

Further, the number of the driving chips 320 is positively correlated to the sum of the powers of the plurality of LED lamp beads 20.

Specifically, as described above, the substrate 10 is distributed with a plurality of LED beads 20, and here, there is no strict limitation on the number of the driving chips 320, which mainly follows the principle that the sum of the powers of the plurality of LED beads 20, that is, the higher the overall lamp power of the lamp is, the greater the number of the driving chips 320 is.

In addition, the substrate 10 has a first square shape, the first region 110 and the second region 120 are located above the first square shape, and the heat generating component 30 is located below the first square shape;

the first region 110 is in a second square shape, the second region 120 is in a square shape and surrounds the periphery of the second square shape, and the second region 120 comprises a first sub-region 1201 positioned above the second square shape, a second sub-region 1202 positioned below the second square shape and third sub-regions 1203 positioned on the left side and the right side of the second square shape;

the arrangement density of the LED lamp beads 20 in the first sub-area 1201, the arrangement density of the LED lamp beads 20 in the third sub-area 1203, and the arrangement density of the LED lamp beads 20 in the second sub-area 1202 are sequentially reduced.

Specifically, the substrate 10 in the first square shape is divided into an upper half area and a lower half area, the upper half area is an arrangement area of the LED lamp beads 20, that is, the first area 110 and the second area 120, and the lower half area is an arrangement area of the heating element 30 and other elements, and the area of the upper half area is generally larger than that of the lower half area; the second region 120 is further divided into the first sub-region 1201, the second sub-region 1202 and the third sub-region 1203, wherein the first sub-region 1201 is an upper edge position of an upper half region, the second sub-region 1202 is a lower edge position of the upper half region, and the third sub-region 1203 is a left and right edge position of the upper half region.

As shown in the figure, the second sub-region 1202 is closer to the arrangement region of the heating component 30 than the first sub-region 1201, and the lower portion of the third sub-region 1203 is closer to the arrangement region of the heating component 30 than the first sub-region 1201, so that in order to reduce heat accumulation in the arrangement region close to the heating component 30, the arrangement density of the LED beads 20 in the first sub-region 1201, the arrangement density of the LED beads 20 in the third sub-region 1203, and the arrangement density of the LED beads 20 in the second sub-region 1202 are sequentially reduced in the arrangement of the LED beads 20, that is, the arrangement density of the LED beads 20 closer to the arrangement region of the heating component 30 is smaller, and the arrangement density of the LED beads 20 farther from the arrangement region of the heating component 30 is larger. Therefore, the excessive heat accumulation of the light source component can be further effectively avoided, the overall efficient heat dissipation of the light source component is facilitated, and the lighting effect and the service life of the light source component are further improved.

Furthermore, the arrangement density of the LED beads 20 in the first sub-area 1201 and the second sub-area 1202 is gradually increased from the middle to both sides.

Specifically, because the air circulation performance of the middle position of the first sub-region 1201 and the second sub-region 1202 is poor, and the air circulation performance of the two side positions is good, in order to further effectively avoid the heat of the light source assembly from transitionally gathering at the middle position of the substrate 10, the arrangement of the LED lamp beads 20 in the first sub-region 1201 and the second sub-region 1202 follows the principle that the arrangement density gradually increases from the middle to the two sides, so the design is beneficial to the overall efficient heat dissipation of the light source assembly, and the illumination effect and the service life of the light source assembly are further improved.

In addition, because the lower portion of the third sub-region 1203 is closer to the arrangement region of the heating element device 30 than the upper portion, in order to further effectively avoid transition and aggregation of the heat of the light source assembly in the lower region of the edge of the substrate 10, the arrangement of the LED lamp beads 20 in the third sub-region 1203 follows the principle that the arrangement density is gradually reduced from top to bottom, so that the design is beneficial to the overall efficient heat dissipation of the light source assembly, and the lighting effect and the service life of the light source assembly are further improved.

A specific application example is described as follows:

the light source component comprises: PCB board (the base plate 10), 2835 lamp pearl (LED lamp pearl 20), IC (driver chip 320), discharge tube 2, electric capacity 1, X electric capacity, bridge heap (bridge heap 310), discharge tube 3, protective tube 1, discharge tube 1, electric capacity 2, piezo-resistor, color ring resistance.

As shown in the figure, the distribution of the lamp beads on the light source assembly is divided into: the lamp beads in rows 1 to 3 are upper regions, the lamp beads in rows 15 to 17 are lower regions, the lamp beads in rows 1 to 3 are left regions, the lamp beads in rows 23 to 25 are right regions, and the lamp beads are sparse middle regions.

The left and right symmetry axis is used as a middle axis, 12 lamp beads are pasted on the left side of the upper region symmetry axis, 12 lamp beads are pasted on the right side of the upper region symmetry axis, 3 lamp beads are pasted on the symmetry axis from top to bottom, the 3 lamp beads are aligned with the lamp beads on the left and right sides of the symmetry axis, 3 rows of the lamp beads are pasted on the upper region, and 25 lamp beads are pasted on each row. The upper, lower, left and right intervals of 1 to 3 rows of lamp beads in the upper region are as follows: the distance between the lamp beads is 4+ N0.84 MM 0.9MM, wherein N is the numerical value of the second lamp bead. If the N value of the second lamp bead is 2, the N value of the third lamp bead is 3, and so on.

The 15 th, 16, 17 row lamp pearls of lower part region and the regional 1, 2, 3 row lamp pearls of upper portion use the symmetry axis of longitudinal symmetry, and the upper and lower horizontal interval of the regional 15 to 17 rows lamp pearls of lower part is: the distance between the lamp beads is 4+ N0.84 MM 0.9MM, wherein N is the numerical value of the second lamp bead. If the N value of the second lamp bead is 2, the N value of the third lamp bead is 3, and so on. And (3) eliminating 13 and 24 lamp beads in the 15 th row of the lower area, eliminating 4, 6, 8, 9, 10, 12, 13, 14, 16, 17, 18, 20, 21, 22 and 24 lamp beads in the 16 th row, and eliminating 13 and 24 lamp beads in the 17 th row of the lower area. The lamp beads cancelled above are considered to be too close to the heating component below, so that the heat is prevented from being locally gathered.

The interval of the upper lamp bead and the lower lamp bead of the 4 th row to the 14 th row of 1 to 3 columns of the left side region is 7.34MM, the interval of the transverse lamp bead is 4+ N0.84 0.9, wherein N is the numerical value of the several lamp beads. If the N value of the second lamp bead is 2, the N value of the third lamp bead is 3, and so on.

The left-right and up-down intervals of the 15 th, 16 th and 17 th rows of lamp beads in the right side area from the 4 th row to the 14 th row are symmetrical to the 1 st to 3 th rows of lamp beads on the left side, but 9, 10, 11, 12, 13 and 14 lamp beads in the 16 th row need to be eliminated.

The distance from top to bottom aligns with the right side region in the 4 th row of lamp pearl of middle zone, and 9 lamp pearls of horizontal evenly distributed, 5 rows of lamp pearl that the interval of having arranged downwards is 15.2MM are the 6 th, 8, 10, 12 rows in proper order, wherein cancel 8 lamp pearls on the symmetry axis of the 6 th row, cancel 6 th, 8, 10, 12 lamp pearls of the 8 th row, cancel 6 th, 8, 10, 12 lamp pearls of the 10 th row, cancel 6 th, 8, 10 lamp pearls of the 12 th row.

The upper and lower positions of the 5 th row of lamp beads in the middle area are positioned in the middle positions of the 4 th row and the 5 th row in the right area, 10 lamp beads with the interval of 15MM are uniformly distributed in a transverse distribution mode by taking a bilateral symmetry axis as the center, 5 rows of lamp beads with the distance of 20.4MM are downwards distributed, and the rows are respectively the 5 th, 7 th, 9 th, 11 th and 13 th rows.

The light source component is divided into 4 groups of 20 ICs, each group of 5 ICs is distributed in a vertically staggered manner, 2 staggered heat dividing grooves (the heat insulation groove 40) are formed in a PCB between the four groups of ICs and lamp beads, and a mains supply input is positioned in the lower area on the left corner of the light source component and connected with the bridge rectifier 310 so as to rectify an alternating mains supply into a direct current which can drive the lamp beads.

The embodiment of the utility model provides a can solve at least one of following technical problem:

the characteristic that air at the edge of the lamp body flows fast is utilized, the left side, the right side and the top of the PCB are arranged in a reduced interval, and the problem that the temperature of the central area of the lamp body is too high and the temperature of the edge of the lamp body is too low due to the uniform distribution of the lamp beads in the prior art is solved;

the IC groups are staggered, so that the problem of shortened service life of lamp beads caused by the fact that the temperature of the lower part of a lamp body is too high due to the fact that power consumption devices with large heat productivity such as bridge stacks, ICs and the like are uniformly arranged in the past is solved;

because the air flow rate of the middle area of the lamp body is slower than the air flow rate of the edge of the lamp body, the temperatures of the left side, the right side, the top and the lower part of the PCB are uniform by the arrangement mode of the lamp beads in the middle area which are sparsely arranged and the lamp beads which are closely spaced from the bottoms of the tops of the left side and the right side, and the problem that the light effect is low due to overhigh temperature and overlarge heat loss of the lamp beads is solved;

the design of the heat dividing groove solves the problem that the heat of power consumption devices with large heat productivity such as bridge stacks, ICs and the like is too concentrated to one side, so that the heat influence is generated between the lamp beads and the driving ICs, and the temperature of the whole lamp is too concentrated in the center of the lamp body.

In addition, the embodiment of the utility model provides a lamps and lanterns still provides, lamps and lanterns include any one kind light source subassembly in above embodiment.

For the specific structure of the light source module, reference is made to the description of the above embodiments, which are not repeated herein. Other structures and connections of the lamp are known to those skilled in the art and will not be described in detail here.

It should be noted that, although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the present invention should not be construed as limited to the scope of the present invention. Under the condition that the structures are not in conflict, the structures of the parts mentioned in the above embodiments can be combined with each other, and for avoiding repetition, the technical scheme obtained after combination is not repeated herein, but the technical scheme obtained after combination also belongs to the protection scope of the utility model. Various modifications and changes may be made by those skilled in the art without inventive work within the scope of the present invention as described in the claims.

The examples of the embodiment of the present invention are intended to concisely illustrate the technical features of the embodiments of the present invention, so that a person skilled in the art can visually understand the technical features of the embodiments of the present invention, and do not act as an improper limitation of the embodiments of the present invention.

The above-described embodiments of the apparatus are merely illustrative, where the units described as separate parts may or may not be physically separated, and the parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on multiple network units, and some or all of the modules may be selected according to actual needs to achieve the purpose of the embodiments, and those skilled in the art can understand and implement the embodiments without creative efforts.

While the foregoing description shows and describes several preferred embodiments of the present invention, it is to be understood, as noted above, that the embodiments are not limited to the forms disclosed herein, but are not to be considered as exclusive of other embodiments, and are capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. Modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the embodiments of the invention, which should be limited only by the claims appended hereto.

Claims (13)

1. The light source component is characterized by comprising a substrate and a plurality of LED lamp beads arranged on the substrate in an array manner;

the substrate comprises a first area positioned in the center of the substrate and a second area surrounding the first area;

the LED lamp bead arrangement density of the second area is greater than that of the first area.

2. The light source assembly of claim 1, further comprising a heat generating component disposed on the substrate outside the second region, wherein the LED bead arrangement density in the second region close to the heat generating component is less than the LED bead arrangement density far from the heat generating component.

3. The light source assembly of claim 1, wherein the first region comprises a plurality of rows of LED beads, each row of LED beads comprises a plurality of LED beads arranged at intervals, and the LED beads in the plurality of rows are arranged at intervals and in a staggered manner.

4. The light source assembly of claim 2, wherein the heat generating component includes a bridge rectifier for rectifying the current, and the LED lamp bead arrangement density near the bridge rectifier in the second region is less than the LED lamp bead arrangement density far from the bridge rectifier.

5. The light source assembly of claim 2, wherein the heat generating component includes a driving chip, and the arrangement density of the LED beads close to the driving chip in the second region is less than the arrangement density of the LED beads far from the driving chip.

6. The light source assembly of claim 2, wherein the substrate is provided with a heat sink disposed between the second region and the heat generating component.

7. The light source assembly of claim 6, wherein the number of the heat insulation slots is not less than 2, and two adjacent heat insulation slots are spaced and arranged in a staggered manner.

8. The light source assembly of claim 5, wherein the heat generating component includes a plurality of the driver chip sets, each of the driver chip sets includes at least one of the driver chips, and the driver chip sets are spaced and staggered.

9. The light source assembly of claim 5, wherein the number of the driving chips is positively correlated to the sum of the powers of the plurality of LED lamp beads.

10. The light source module as claimed in claim 2, wherein the substrate has a first square shape, the first region and the second region are located above the first square shape, and the heat generating component is located below the first square shape;

the first area is in a second square shape, the second area surrounds the periphery of the second square shape in a square shape, and the second area comprises a first sub-area positioned above the second square shape, a second sub-area positioned below the second square shape and third sub-areas positioned on the left side and the right side of the second square shape;

the LED lamp bead arrangement density of the first sub-area, the LED lamp bead arrangement density of the third sub-area and the LED lamp bead arrangement density of the second sub-area are reduced in sequence.

11. The light source assembly of claim 10, wherein the arrangement density of the LED beads in the first and second sub-areas is gradually increased from the middle to both sides.

12. The light source assembly of claim 10, wherein the LED lamp bead arrangement density of the third sub-area is gradually decreased from top to bottom.

13. A luminaire comprising a light source assembly according to any one of claims 1-12.

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