CN210485318U - LED light source assembly and LED car lamp - Google Patents

Abstract

The utility model provides a LED light source subassembly and LED car light, this LED light source subassembly includes: LED lamp pearl, metal positive base plate and metal negative base plate, the metal positive base plate with the metal negative base plate sets up side by side, the positive pole and the negative pole of LED lamp pearl are connected respectively the metal positive base plate with the metal negative base plate. According to the technical scheme of the utility model, the LED lamp beads are arranged between the metal positive substrate and the metal negative substrate which are arranged side by side, so that the electrical conductivity and the heat dissipation of the metal substrates can be fully utilized, and the thermoelectric integrated LED light source design is realized; compared with the multilayer structure of the heat dissipation layer added between the two substrates of the existing LED car lamp, the thickness is thinner, and the LED car lamp has better light condensation effect and the like; compared with the traditional halogen car lamp, the halogen car lamp has the characteristics of lower power, longer service life, higher lighting speed and the like.

Description

LED light source assembly and LED car lamp

Technical Field

The utility model relates to a LED technical field especially relates to a LED light source subassembly and LED car light.

Background

The conventional vehicle lamps in the prior art include halogen lamps and LED lamps, wherein the halogen lamps belong to incandescent lamps, and tungsten wires inside the halogen lamps generate heat and emit light when current passes through the tungsten wires. The LED car light is a car light manufactured by using an LED package device as a light source, and generally has the characteristics of high brightness, rich color types, low power consumption, long service life and the like.

However, both of these prior art lamps have their own drawbacks. For halogen lamps, one is a relatively low intensity, typically, 55W halogen lamps are only 1000 lumens; secondly, the tungsten filament is adopted to emit heat and light, and the service life of the tungsten filament is shorter than that of an LED lamp; thirdly, the lighting speed is lower than that of the LED lamp, and as the lighting of the halogen lamp is a heating and light-emitting process, the lighting time of the halogen lamp is different according to the power and is different from several seconds to dozens of seconds; fourthly, the color temperature of the halogen lamp is warm and white, the color is yellow, and the illumination effect is poor; fifthly, the energy consumption of the halogen lamp is high, the power of the general halogen headlamp for the vehicle is about 55W, and the power of the LED headlamp is 20W.

For the existing LED car light, although some defects of the traditional halogen car light can be solved, some problems also exist, for example, although the front side and the back side can emit light, the light condensation effect is inferior to that of the halogen car light because the middle layer has a certain interval area; for another example, although the LED lamp generates heat less than a halogen lamp, a heat dissipation structure must be considered because the operating temperature of the LED lamp is not higher than 150 °, and an excessively high temperature may cause LED burnout and the like.

SUMMERY OF THE UTILITY MODEL

For solving above-mentioned at least one problem, the utility model provides a LED light source subassembly and LED car light through will be equipped with LED lamp pearl establish on the positive base plate of metal and the metal negative base plate that sets up side by side, utilize metal substrate's electric conductivity and thermal diffusivity, realize the design of thermoelectric integration's LED light source, with its spotlight effect that applies to in the car light can also solve current LED car light well poor and the big scheduling problem of power of halogen car light.

The embodiment of the utility model provides a LED light source subassembly, include: LED lamp pearl, metal positive base plate and metal negative base plate, the metal positive base plate with the metal negative base plate sets up side by side, the positive pole and the negative pole of LED lamp pearl are connected respectively the metal positive base plate with the metal negative base plate.

Further, in the LED light source module, an insulating connector is further included for fixedly connecting the metal positive substrate and the metal negative substrate.

Further, in the LED light source module, the metal positive substrate and the metal negative substrate are strip-shaped substrates, and the insulating connecting members are disposed at two ends and/or adjacent edges of the strip-shaped substrates.

Further, in the above LED light source module, the metal positive substrate and the metal negative substrate are provided with a reserved area for arranging the LED lamp bead, and the insulating connecting member is provided on the surfaces of the metal positive substrate and the metal negative substrate except the reserved area.

Further, in the above LED light source module, the metal positive substrate and the metal negative substrate include substrate main bodies, adjacent edges of the two substrate main bodies are respectively provided with a protruding structure facing inward, and at least one surface of the protruding structure is provided with a pad for connecting the anode and the cathode of the LED lamp bead.

Further, in the above LED light source module, the LED light source module further includes: and a limiting hole or a limiting groove is formed in the adjacent position of the welding pad.

Further, in the LED light source module, the front and back surfaces of the metal positive substrate and the metal negative substrate are both provided with a bonding pad.

Further, in the LED light source module, white oil or a white film is disposed on the surfaces of the metal positive substrate and the metal negative substrate.

Further, in the LED light source module, graphene layers are disposed on the surfaces of the metal positive substrate and the metal negative substrate.

Further, in the above LED light source module, the LED light source module further includes: a blister for enclosing the metallic positive substrate and the metallic negative substrate within a housing; the bulb shell is filled with heat dissipation gas, and the heat dissipation gas comprises one or more of helium, nitrogen, neon and argon.

Further, in the above LED light source module, the LED lamp beads include a plurality of LED lamp beads, and the plurality of LED lamp beads are disposed on the metal positive substrate and the metal negative substrate in a parallel connection manner.

Another embodiment of the utility model provides a LED car light, including foretell LED light source subassembly.

The embodiment of the utility model has the following advantage:

according to the technical scheme of the utility model, the LED lamp beads are arranged on the metal positive substrate and the metal negative substrate which are arranged side by side, so that the electric conduction and the heat dissipation of the metal substrates can be utilized to realize the thermoelectric integrated LED light source design; compared with the existing LED car lamp design with a structure of two substrates and a middle heat dissipation layer, the thickness of the whole substrate can be greatly reduced, and a better light condensation effect can be realized; in addition, a special heat dissipation device is not needed, so that the product volume can be reduced, the cost can be reduced, and the like; in addition, the metal positive substrate and the metal negative substrate are packaged in the bulb shell, and large-angle light emission of the LED car lamp can be achieved. Compared with the traditional halogen car lamp, the halogen car lamp has the characteristics of lower power, longer service life, higher lighting speed and the like.

In order to make the aforementioned and other objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 shows a first structural schematic diagram of an LED light source assembly according to an embodiment of the present invention;

fig. 2(a) -2 (c) show three schematic structural diagrams of the LED light source assembly provided with the insulating connecting member according to the embodiment of the present invention;

fig. 3 shows a second schematic structural diagram of the LED light source assembly according to the embodiment of the present invention;

fig. 4 shows a third structural schematic diagram of the LED light source assembly according to the embodiment of the present invention;

fig. 5 shows a first structural schematic diagram of an LED vehicle lamp according to an embodiment of the present invention;

fig. 6 shows a second schematic structural diagram of the LED vehicle lamp according to the embodiment of the present invention.

Description of the main element symbols:

100-LED vehicle lights; 1-an LED light source assembly; 2-connecting the base; 3-a power supply interface; 4-a chuck; 10-a metal positive substrate; 20-a metal negative substrate; 30-LED lamp beads; 40-an insulating connector; 50-cell shell; 60-metal connection terminals; 70-external metal wire; 71-positive metal wire; 72-negative metal wire; 10 a-positive electrode pad; 20 a-negative electrode pad.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the templates herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1

Referring to fig. 1 to 4, the present embodiment provides an LED light source assembly 1, which can be used in lighting devices such as an LED car light, and compared to the existing car light design with two substrates and a middle heat dissipation layer structure, the LED light adopting the structure of the LED light source assembly 1 can greatly reduce the thickness of the whole substrate and achieve a better light collection effect; because no special heat dissipation device is needed, the product volume and the cost can be reduced. The LED light source module 1 will be described in detail below.

As shown in fig. 1, the LED light source assembly 1 includes a metal positive substrate 10, a metal negative substrate 20, and LED beads 30, wherein the metal positive substrate 10 and the metal negative substrate 20 are arranged side by side, and a positive electrode and a negative electrode of the LED beads 30 are respectively connected to the metal positive substrate 10 and the metal negative substrate 20.

In this embodiment, the metal positive substrate 10 and the metal negative substrate 20 can be made of a metal substrate material with good electrical and thermal conductivity, such as a copper substrate, and the shape of the substrate can be determined according to actual requirements, such as a strip shape, a semi-circle shape, and the like. Optionally, the metal positive substrate 10 and the metal negative substrate 20 adopt a symmetrical structure to increase balance and aesthetic property, etc. The substrate size of the metal positive substrate 10 and the substrate size of the metal negative substrate 20 are far larger than the size of the LED lamp beads 30, and a good heat dissipation effect can be achieved.

It can be understood that, since the two substrates are arranged side by side, the thickness of the whole substrate is the thickness of a single substrate. Compared with the existing LED light source design of adding a heat dissipation layer between two layers of substrates, the thickness of the whole substrate can be greatly reduced, and the LED light source has a better light gathering effect and the like.

Further, the LED light source assembly 1 further includes an insulating connector 40, where the insulating connector 40 is mainly used for fixedly connecting the metal positive substrate 10 and the metal negative substrate 20. For example, the insulating connector 40 may include, but is not limited to, a sealing glass or plastic slot.

Exemplarily, if the metal positive substrate 10 and the metal negative substrate 20 are strip-shaped substrates, optionally having a strip-shaped rectangular structure, in order to fix the two strip-shaped substrates side by side, the insulating connectors 40 may be disposed at two ends and/or adjacent edges of the strip-shaped substrates. As shown in fig. 2(a), insulating connection members 40 are provided at both ends; as shown in fig. 2(b), sealing glass and the like are provided at adjacent edges of the two substrates for the purpose of fixed connection. As another alternative, as shown in fig. 2(c), an area may be reserved on the metal positive substrate 10 and the metal negative substrate 20 for disposing the LED lamp bead, and an insulating connecting member having an insulating and light reflecting effect, such as a terephthalic acid (PTA) material, is disposed on the surfaces of the metal positive substrate 10 and the metal negative substrate 20 except for the reserved area.

It should be understood that the arrangement positions of the insulating connection members 40 on the strip-shaped substrate shown in fig. 2(a) -2 (c) are merely examples, and in actual production, the specific arrangement positions of the insulating connection members 40 and the shape structure of the substrate can be determined according to actual needs, and are not limited herein.

Alternatively, as shown in fig. 3, for the metal positive substrate 10 and the metal negative substrate 20 having a strip structure, one end of each of the metal positive substrate and the metal negative substrate may be provided with an "i" shaped portion, and the other end of each of the metal positive substrate and the metal negative substrate may be provided with a "convex" shaped portion, respectively.

In order to further improve the light emitting effect, the surfaces of the metal positive substrate 10 and the metal negative substrate 20 are optionally provided with materials such as white oil or white film for improving the substrate surface reflectivity, and further improving the light emitting angle. In addition, still have limiting displacement through being equipped with white oil or white film on the surface, follow-up when fixing LED lamp pearl promptly, can be used to the limited flow that is liquid tin cream, prevent promptly that the tin cream from toward the regional flow of large tracts of land, LED lamp pearl 30's skew phenomenon will not appear when LED lamp pearl 30 is fixed like this.

In order to further improve the heat dissipation effect, the surfaces of the metal positive substrate 10 and the metal negative substrate 20 are optionally further provided with materials with better heat conductivity, such as graphene, so as to form a heat dissipation layer.

In this embodiment, the metal positive substrate 10 and the metal negative substrate 20 each include a substrate main body, and the two substrate main bodies may be respectively provided with a positive pad and a negative pad at adjacent edges, that is, the metal positive substrate 10 disposed side by side is provided with a positive pad at an edge close to the metal negative substrate 20, and the metal negative substrate 20 is provided with a negative pad at an edge close to the metal positive substrate 10.

Therefore, the LED lamp beads 30 can be respectively connected to the metal positive substrate 10 and the metal negative substrate 20 through the positive bonding pad and the negative bonding pad, that is, the positive electrode of the LED lamp beads 30 is connected to the metal positive substrate 10 through the positive bonding pad, and the negative electrode is connected to the metal negative substrate 20 through the negative bonding pad. It can be understood that if there are a plurality of LED lamp beads 30, the LED lamp beads 30 can be disposed on the metal positive substrate 10 and the metal negative substrate 20 in parallel. In addition, the LED lamp bead 30 is positioned between the two substrates and can also play a role in fixing the two substrates.

Regarding the arrangement of the bonding pads, it is preferable that the adjacent edges of the two substrate main bodies are respectively provided with a convex structure facing inward, and the convex structure is provided with the bonding pads for connecting the anode and the cathode of the LED lamp bead 30. For example, as shown in fig. 3, a positive electrode pad 10a is disposed on the bump structure of the metal positive substrate 10, and a negative electrode pad 20a is disposed on the bump structure corresponding to the metal negative substrate 20.

Further, the protruding structure of the metal positive substrate 10 and the protruding structure of the metal negative substrate 20 may be arranged right opposite to each other, and at this time, the LED lamp bead 30 can be horizontally arranged between the two substrates. Of course, the two protruding structures may be staggered horizontally, for example, the two protruding structures are arranged adjacently from top to bottom, and at this time, the LED lamp beads 30 are vertically arranged between the two substrates.

In this embodiment, the number of pads is not limited. Further, alternatively, the pads may be provided on both the front and back surfaces of the metal positive substrate 10 and the metal negative substrate 20. Further optionally, for the same bump structure on the substrate, pads are disposed on both the front and back surfaces thereof. Therefore, the front side and the back side of the same protruding structure can be provided with the LED lamp beads 30, the space of the substrate and the manufacturing process time of the plurality of protruding structures can be saved, and the like.

Further, considering that the LED lamp beads 30 are fixed on the bonding pads through solder paste, preferably, a position limiting hole or a position limiting groove is further provided at an adjacent position of the bonding pads of the metal positive substrate 10 and the metal negative substrate 20. It can be understood that the limiting part is mainly used for limiting the flowing of the liquid solder paste, namely preventing the solder paste from flowing to a large area, so that the LED lamp beads 30 cannot deviate when the LED lamp beads 30 are fixed.

For the LED lamp bead 30 in this embodiment, flip chips of different packaging forms may be used, and a directly packaged patch lamp bead may also be used as a light source. For example, a CSP flip chip in the form of a CSP package may be used, or a conventional LED flip chip may be used, and a fluorescent glue may be preferably coated on the surface of the conventional LED flip chip, so that the LED flip chip may be used to adjust the light emitting color of the LED flip chip, and may also play a role in protecting the LED flip chip, and the like.

In order to provide the LED light source module 1 with a better light-emitting angle and a better protection effect for the two metal substrates, as shown in fig. 4, the LED light source module 1 of the present embodiment further includes a bulb 50, and the bulb 50 is mainly used for enclosing the metal positive substrate 10 and the metal negative substrate 20 in a case. For example, a transparent material having high light transmittance such as glass can be used for the bulb 50.

Further preferably, the bulb 50 is filled with a heat dissipation gas for increasing the heat dissipation effect when the LED emits light. The heat dissipation gas may include, but is not limited to, one or more of helium, nitrogen, neon, argon, and other inert gases.

As shown in fig. 4, the LED light source module 1 further includes a metal connection terminal 60, and the metal connection terminal 60 is used for connecting the positive metal substrate 10 to a positive metal lead 71 disposed outside the bulb 50 and connecting the negative metal substrate 20 to a negative metal lead 72 disposed outside the bulb 50. Exemplarily, the metal connection terminal 60 may employ a metal sheet structure or the like. The two metal substrates can be electrically connected to a driving power source via the two external metal wires 70.

According to the technical scheme of the utility model, the LED lamp beads are arranged on the metal positive substrate and the metal negative substrate which are arranged side by side, and the electric conductivity and the thermal conductivity of the metal substrates are utilized, so that the thermoelectric integrated LED light source design is realized, a special heat dissipation device is not needed, the product volume can be reduced, and the cost can be reduced; and, for the design of two base plates with middle heat dissipation layer structure now, can reduce whole base plate thickness greatly and realize better spotlight effect. In addition, the metal positive substrate and the metal negative substrate are packaged in the bulb shell, so that the LED light source can emit light at a large angle, heat dissipation gas is filled in the bulb shell, and the heat dissipation effect can be further improved.

Example 2

Referring to fig. 5 and fig. 6, the present embodiment provides an LED vehicle lamp 100, where the LED vehicle lamp 100 includes the LED light source assembly 1 and the connecting base 2 in embodiment 1. Wherein, the connecting base 2 mainly plays a role in fixing and supporting the LED light source assembly 1.

Exemplarily, the LED light source assembly 1 in the LED vehicle lamp 100 includes an LED lamp bead 30, a metal positive substrate 10 and a metal negative substrate 20, the metal positive substrate 10 and the metal negative substrate 20 are arranged side by side, and a positive electrode and a negative electrode of the LED lamp bead 30 are respectively connected to the metal positive substrate 10 and the metal negative substrate 20.

Further, the LED light source assembly 1 further includes an insulating connector 40 for fixedly connecting the metal positive substrate 10 and the metal negative substrate 20. Exemplarily, if the metal positive substrate 10 and the metal negative substrate 20 are strip-shaped substrates, the insulating connection members 40 are respectively disposed at two ends of the strip-shaped substrates.

Preferably, the metal positive substrate 10 and the metal negative substrate 20 include substrate bodies, and adjacent edges of the two substrate bodies are respectively provided with a protruding structure facing the inner side, and the protruding structure is provided with a pad for connecting the anode and the cathode of the LED lamp bead 30.

Further optionally, the LED light source assembly 1 further comprises a bulb shell 50 for enclosing the metal positive substrate 10 and the metal negative substrate 20 in the shell. Preferably, the bulb shell 50 is filled with a heat dissipation gas, and the heat dissipation gas includes one or more of helium, nitrogen, neon, argon, and the like.

Preferably, a driving circuit for driving the LED light source assembly 1 is further disposed inside the connection base 2, and the driving circuit is connected to the metal positive substrate 10 and the metal negative substrate 20. It is understood that when the LED light source module 1 includes the external metal wires 70, the driving circuit is used to connect the external metal wires 70.

Further preferably, the LED vehicle lamp 100 further includes: and the power supply interface 3 is connected with the connecting base 2. The interface is used for connecting a power supply required by the LED light source component 1. For example, the power supply interface 3 may be provided on one side of the connection base 2, as shown in fig. 6, so that the LED lamp 100 has an L-shaped structure. It can be understood that if the above-mentioned driving circuit is disposed in the connecting base 2, the interface is connected to the driving circuit for providing the driving circuit and the power supply voltage required by the LED light source module 1. The power supply interface 3 may be an AC interface, a dc interface, or the like.

Further preferably, as shown in fig. 6, the LED vehicle lamp 100 further includes: a chuck 4 for adjusting a lighting angle. Exemplarily, the chuck 4 has one end for connecting the LED light source assembly 1 and the other end for connecting with the connection base 2. The forward lighting angle of the LED vehicle lamp 100 can be rotationally adjusted by the chuck 4.

It is understood that the LED light source assembly in the LED vehicle lamp 100 of the present embodiment corresponds to the LED light source assembly in embodiment 1, and the alternatives of embodiment 1 are also applicable to the present embodiment, so detailed description is omitted here.

The LED vehicle lamp provided by the embodiment adopts a thermoelectric integrated LED light source design, and no special heat dissipation device is needed; compared with the traditional halogen car lamp, the halogen car lamp has the characteristics of lower power, longer service life, higher lighting speed and the like, and compared with the existing LED car lamp design with the structure of two substrates and a middle heat dissipation layer, the halogen car lamp can greatly reduce the thickness of the whole substrate and realize better light condensation effect and the like.

In all examples shown and described herein, any particular value should be construed as merely exemplary, and not as a limitation, and thus other examples of example embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above-described embodiments are merely illustrative of several embodiments of the present invention, which are described in detail and specific, but not intended to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims (10)

1. An LED light source assembly, comprising: LED lamp pearl, metal positive base plate and metal negative base plate, the metal positive base plate with the metal negative base plate sets up side by side, the positive pole and the negative pole of LED lamp pearl are connected respectively the metal positive base plate with the metal negative base plate.

2. The LED light source module of claim 1, further comprising an insulating connector for fixedly connecting the metallic positive substrate and the metallic negative substrate.

3. The LED light source module of claim 2, wherein the metal positive substrate and the metal negative substrate are strip-shaped substrates, and the insulating connectors are disposed at two ends and/or adjacent edges of the strip-shaped substrates.

4. The LED light source component of claim 2, wherein the metal positive substrate and the metal negative substrate are provided with reserved areas for arranging LED beads, and the insulating connecting pieces are arranged on the surfaces of the metal positive substrate and the metal negative substrate except the reserved areas.

5. The LED light source component of claim 1, wherein the metal positive substrate and the metal negative substrate comprise substrate bodies, adjacent edges of the two substrate bodies are respectively provided with a convex structure facing inwards, and at least one surface of the convex structure is provided with a bonding pad for connecting a positive electrode and a negative electrode of the LED lamp bead.

6. The LED light source assembly of claim 5, further comprising: and a limiting hole or a limiting groove is formed in the adjacent position of the welding pad.

7. The LED light source assembly according to any of claims 1-5, wherein the surfaces of the metal positive substrate and the metal negative substrate are provided with white oil or white film.

8. The LED light source assembly of claim 1, further comprising: and the bulb shell is used for packaging the metal positive substrate and the metal negative substrate in the shell, and is filled with heat dissipation gas which comprises one or more of helium, nitrogen, neon and argon.

9. The LED light source assembly of claim 1, wherein the number of the LED lamp beads is multiple, and the LED lamp beads are arranged on the metal positive substrate and the metal negative substrate in parallel.

10. LED vehicle lamp, characterized in that it comprises a LED light source assembly according to any one of claims 1 to 9.

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