LED light blocking components, LED lamp beads and LED lamps

Abstract

The present invention discloses an LED light-blocking component, an LED lamp bead and an LED lamp. The LED light-blocking component includes an LED bracket and a light-blocking bracket. The LED bracket includes a plurality of legs. The legs have a connecting portion and a fixing portion. The connecting portion has a bonding surface. The fixing portion has a solid crystal plane. The solid crystal plane is used to install an LED chip. The light-blocking bracket includes a bonding portion and a light-blocking portion. The bonding portion fits the bonding surface. The light-blocking portion is located at the side of the LED chip and protrudes relative to the solid crystal plane. The light-blocking portion blocks the outgoing light of the LED chip. The LED lamp bead includes an LED light-blocking component. The LED lamp includes an LED lamp bead. In the present invention, the light-blocking portion can block the light emitted by the LED chip at the side of the LED chip. After the LED lamp bead is formed, it has a light-blocking effect. There is no need to set a light-blocking structure after it is installed on the lamp bracket. This simplifies the structure of the LED lamp and facilitates assembly between different components in the lamp.

Description

Technical Field

[0001] The present invention relates to the technical field of LED lamps, and in particular to an LED light shielding component, an LED lamp bead and an LED lamp. Background Art

[0002] To meet the needs of certain application scenarios, the light emitted by LED lamp beads is irradiated in one or several directions, and the areas that do not need to be irradiated need to be blocked. In the related technology, after the LED lamp beads are installed on the lamp holder of the lamp, a light-blocking structure is set on the lamp holder to block the outgoing light of the LED lamp beads, so that the lamp is irradiated in the required direction. The setting of the light-blocking structure makes the structural design of the lamp more complicated, and the assembly of multiple components is more cumbersome, which is not conducive to the simplification of the overall structure of the lamp. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an LED light shielding assembly, which can shield light, simplify the structure of the lamp, and facilitate the assembly of different components in the lamp.

[0004] The present invention also provides an LED lamp bead having the above-mentioned LED light shielding component.

[0005] The present invention also provides an LED lamp having the above-mentioned LED lamp bead.

[0006] According to the first aspect of the present invention, the LED light shielding assembly is used to shield the emitted light of the LED chip, and includes:

[0007] The LED bracket comprises a plurality of legs, wherein the legs have a connecting portion and a fixing portion, the top surface of the connecting portion has a bonding surface, the top surface of the fixing portion has a crystal-fixing plane, and the crystal-fixing plane is used to mount the LED chip;

[0008] The light-blocking bracket includes a connecting portion and a light-blocking portion which are connected to each other. The bottom surface of the connecting portion is in contact with the connecting surface. The light-blocking portion is located on the side of the LED chip and protrudes upward relative to the solid crystal plane. The light-blocking portion can block the outgoing light of the LED chip.

[0009] The LED light shielding assembly according to the embodiment of the present invention has at least the following beneficial effects:

[0010] In the light blocking assembly provided in the embodiment of the present invention, the LED bracket and the light blocking bracket are combined with each other, the LED bracket fixes the LED chip, and after the combining portion is attached to the combining surface, the LED bracket and the light blocking bracket limit each other, so that the light blocking portion can block the light emitted by the LED chip at the side of the LED chip, and the combination of the LED bracket and the light blocking bracket occurs before the LED lamp beads are formed. After the LED lamp beads are formed, they have a light blocking effect themselves, and there is no need to set a light blocking structure after installing them on the lamp holder, thereby simplifying the structure of the LED lamp and facilitating the assembly of different components in the lamp.

[0011] According to some embodiments of the present invention, at least one side of the light blocking portion is bent toward a direction close to the LED chip.

[0012] According to some embodiments of the present invention, a height of a bottom surface of the light shielding portion is greater than a height of the die-bonding plane.

[0013] According to some embodiments of the present invention, a reflective layer is provided on the side of the light blocking portion facing the LED chip.

[0014] According to some embodiments of the present invention, the light-blocking bracket also includes a supporting portion, two ends of which are respectively connected to the combining portion and the light-blocking portion, and the supporting portion protrudes toward the top of the combining portion; the support leg also includes a bending portion, two ends of which are respectively connected to the connecting portion and the fixing portion, and the bending portion protrudes relative to the top of the connecting portion to form a glue-containing cavity below the fixing portion, and the glue-containing cavity is used to contain the packaging glue.

[0015] According to some embodiments of the present invention, the support portion and / or the bending portion is provided with a glue injection hole, and the glue injection hole is communicated with the glue containing cavity.

[0016] According to some embodiments of the present invention, a plurality of the legs are arranged at intervals, and packaging gaps are provided between adjacent legs, and the packaging gaps are communicated with the glue containing cavity.

[0017] According to some embodiments of the present invention, it also includes a bottom plate and a base plate, the bottom plate is provided with a plurality of through grooves, each of the through grooves contains an LED bracket, and the LED bracket is connected to the groove wall of the through groove; the base plate is provided with a plurality of mounting grooves, the light blocking brackets are spaced apart in the mounting grooves and connected to the groove walls of the mounting grooves, and at least a portion of the LED bracket can pass through the mounting grooves from the bottom of the light blocking bracket to the top of the light blocking bracket, so that the base plate and the bottom plate are overlapped with each other.

[0018] The LED lamp bead according to the second aspect of the present invention includes:

[0019] The LED light blocking component according to the first aspect;

[0020] LED chip, mounted on the die-bonding plane;

[0021] A lead wire, one end of which is connected to the LED chip, and the other end of which is connected to the fixing portion on the support leg different from the LED chip;

[0022] The packaging glue covers the support leg and forms a protrusion above the fixing portion, wherein the projection of the protrusion onto the die-bonding plane is one of an ellipse, a circle or a polygon.

[0023] The LED lamp according to the third embodiment of the present invention includes:

[0024] The LED lamp beads of the second embodiment;

[0025] A lamp frame, wherein the LED lamp beads are installed on the lamp frame.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0028] Figure 1 This is a schematic structural diagram of an embodiment of an LED light shielding assembly of the present invention;

[0029] Figure 2 This is a schematic structural diagram of another embodiment of an LED light shielding assembly of the present invention;

[0030] Figure 3 for Figure 1 A top view of an embodiment of a middle light blocking portion;

[0031] Figure 4 for Figure 1 A top view of another embodiment of the middle light blocking portion;

[0032] Figure 5 for Figure 1 A top view of another embodiment of the middle light blocking portion;

[0033] Figure 6 It is a structural schematic diagram of another embodiment of the light shielding assembly of the present invention;

[0034] Figure 7 for Figure 6 A schematic diagram of the structure of an embodiment of an LED bracket;

[0035] Figure 8for Figure 6 A top view of an embodiment of a middle light blocking bracket;

[0036] Fig. 9 for Figure 6 A side view of an embodiment of a middle light blocking bracket;

[0037] Fig.10 for Figure 6 A top view of an embodiment of an LED bracket;

[0038] Fig.11 A top view of an embodiment of a base plate;

[0039] Fig.12 is a top view of an embodiment of a substrate;

[0040] Fig.13 for Fig.11 A top view of an embodiment of an LED bracket;

[0041] Fig.14 for Fig.12 A top view of an embodiment of a middle light blocking bracket;

[0042] Fig.15 It is a schematic structural diagram of an embodiment of an LED lamp bead of the present invention.

[0043] Reference numerals:

[0044] LED chip 100; LED bracket 200, support leg 210, connecting part 211, bonding surface 2111, fixing part 212, crystal fixing plane 2121, bending part 213, glue cavity 220, first packaging gap 230, second packaging gap 240, groove 250, external body 260; light shielding bracket 300, bonding part 310, light shielding part 320, supporting part 330, bending section 331, transition section 332, glue injection hole 333; bottom plate 400, through groove 410, positioning hole 420, suspension body 430, positioning protrusion 440; substrate 500, mounting groove 510, limiting protrusion 520; lead 600; packaging glue 700, protrusion 710, ball head 711, middle part 712. DETAILED DESCRIPTION

[0045] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0046] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0047] In the description of the present invention, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0048] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0049] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0050] In order to achieve the goal of irradiating light in one or several directions, traditional LED lamps usually set a light blocking structure on the lamp holder to block the outgoing light of the LED lamp beads after the LED lamp beads are installed on the lamp holder. An LED light blocking structure is provided in an embodiment of the present invention, which is used when the LED lamp beads are not packaged and installed on the lamp holder. By blocking the outgoing light of the chip on the LED bracket, the LED lamp beads are allowed to irradiate in one or several directions. Since the LED lamp beads already have the characteristic of emitting light in a certain direction before being used in the lamp, there is no need to set a light blocking plate on the lamp holder, so that the lamp structure is simplified.

[0051] Specifically, refer to Figure 1In an embodiment of the present invention, the LED light blocking component is used to block the outgoing light of the LED chip 100, and includes an LED bracket 200 and a light blocking bracket 300, the LED bracket 200 is used to install the LED chip 100, and the light blocking bracket 300 is used to block the light emitted by the LED chip 100. The LED bracket 200 includes a plurality of legs 210, and the legs 210 have a connecting portion 211 and a fixing portion 212 connected to each other. The top surface of the connecting portion 211 has a bonding surface 2111, and the top surface of the fixing portion 212 has a solid crystal plane 2121, and the solid crystal plane 2121 is used to install the LED chip 100; the light shielding bracket 300 includes a connecting portion 310 and a light shielding portion 320 connected to each other, and the bottom surface of the connecting portion 310 is used to fit with the connecting surface 2111, so that the LED bracket 200 and the light shielding bracket 300 are mutually limited in the vertical direction, so that the two can maintain a stable position when assembled, and the light shielding portion 320 is connected to one end of the connecting portion 310, and the light shielding portion 320 is located on the side of the LED chip 100, and protrudes relative to the solid crystal plane 2121, so that the light shielding portion 320 It has a certain height to block the light emitted from the LED chip 100 toward one side of the light blocking portion 320 , so that the light can only be emitted in the unblocked direction, thereby achieving the light blocking effect for the LED chip 100 .

[0052] In the light blocking assembly provided in the embodiment of the present invention, the LED bracket 200 and the light blocking bracket 300 are combined with each other, the LED bracket 200 fixes the LED chip 100, and after the coupling portion 310 is attached to the coupling surface 2111, the LED bracket 200 and the light blocking bracket 300 are limited to each other, so that the light blocking portion 320 can block the light emitted by the LED chip 100 at the side of the LED chip 100, and the combination of the LED bracket 200 and the light blocking bracket 300 occurs before the LED lamp beads are formed. After the LED lamp beads are formed, they have a light blocking effect themselves, and there is no need to set a light blocking structure after installing them on the lamp holder, thereby simplifying the structure of the LED lamp and facilitating the assembly of different components in the lamp.

[0053] It should be noted that the bottom surface of the joint portion 310 can be a plane or a curved surface. The plane-shaped joint portion 310 is more conducive to the mold opening of the light shielding bracket 300 and the LED bracket 200; the connecting portion 211 and the fixing portion 212 can be located on the same horizontal plane, thereby, the bottom surface of the joint portion 310 and the bottom surface of the light shielding portion 320 can also be located on the same horizontal plane; Figure 1 As shown, the LED bracket 200 is configured as a back-bending structure, having a planar layer located at the upper layer and a bending layer located at the lower layer, two bending layers are provided, and are respectively connected to the two ends of the planar layer, the bending layer is bent downward relative to the planar layer, and is bent toward the inner side of the planar layer, the connecting portion 211 and the fixing portion 212 are both located at the planar layer of the upper layer, and the bending layer of the lower layer is used for combining with packaging glue, such as Figure 2 As shown, relative to Figure 1In the LED bracket 200, the LED bracket 200 is configured as a flat plate structure, having only an upper plane layer, and the connecting portion 211 and the fixing portion 212 are both located on the upper plane layer.

[0054] The light shielding portion 320 should have a certain height, and the height of the light shielding portion 320 can be reasonably set according to the required light irradiation range of the LED chip 100. The light shielding portion 320 can be set to a flat plate shape, such as Figure 3 As shown, the projection of the light blocking portion 320 toward the solid crystal plane 2121 is a straight line, which can block the light on one side of the LED chip 100. Of course, the light blocking portion 320 can also be set to other shapes, such as at least one side of the light blocking portion 320 is bent in the direction close to the LED chip 100, so that the light blocking portion 320 surrounds different sides of the LED chip 100 at the same time, and the light emitted by the chip in multiple directions can be blocked, thereby increasing the light blocking range of the light blocking portion 320. Specifically, in one embodiment, one side of the light blocking portion 320 is bent toward the LED chip 100, so that the projection of the light blocking portion 320 to the solid crystal plane 2121 is approximately "L" shaped, or, as shown in FIG. Figure 4 As shown, both sides of the light shielding portion 320 are bent toward the LED chip 100, so that the light shielding portion 320 can block light in three directions at the same time, and the projection of the light shielding portion 320 onto the die-bonding plane 2121 is approximately "U"-shaped. In addition, the length of the bending of both sides of the light shielding portion 320 can be adjusted according to the requirements of the light shielding range, so that the bent parts of both sides of the light shielding portion 320 block light in different ranges, which is more flexible. In another embodiment, as Figure 5 As shown, the projection of the light shielding portion 320 onto the die-bonding plane 2121 is an arc, and both sides of the light shielding portion 320 are bent toward the LED chip 100 at the same time, and the light shielding portion 320 has a large shielding range for the outgoing light of the chip; the shielding range of the light shielding portion 320 can be adjusted by changing the curvature of the arc; in addition, Figure 5 The light blocking portion 320 is set to be symmetrical relative to the center of the LED chip 100. In other embodiments, the light blocking portion 320 can be set to an asymmetrical structure, and the two sides of the light blocking portion 320 have different light shielding capabilities. The setting of the light blocking portion 320 is more flexible.

[0055] in addition, Figure 1 and Figure 2 A situation in which a light blocking bracket 300 is combined with an LED bracket 200 is shown. In a specific embodiment, one LED bracket 200 can be combined with multiple light blocking brackets 300 at the same time, and different light blocking brackets 300 can be arranged on different sides of the LED bracket 200 to combine to block light in different directions of the chip.

[0056] Typically, the LED chip 100 is mounted on the crystal-fixing plane 2121. After the crystal-fixing wires are bonded, the LED bracket 200 and the light-shielding bracket 300 are preliminarily combined. By simultaneously filling the two with glue, the LED bracket 200 and the light-shielding bracket 300 are encapsulated inside the encapsulation glue, so that the two form an integrated structure. In one embodiment, there is a gap between the bottom surface of the light-shielding portion 320 and the crystal-fixing plane 2121 of the LED bracket 200. When the LED bracket 200 and the light-shielding bracket 300 are combined for encapsulation, the encapsulation glue flows into the gap due to the fluidity of the colloid and fills the gap, so that the LED bracket 200 and the light-shielding bracket 300 are tightly combined with the encapsulation glue, thereby improving the combined strength of the two.

[0057] In addition, a reflective layer may be provided on the side of the light shielding portion 320 facing the LED chip 100, and the reflective layer is used to reflect the light emitted from the LED chip 100 toward the light shielding portion 320, and change the emission direction of the light; by providing the reflective layer, the loss of light emitted from the LED chip 100 can be reduced, so that the blocked light can also be emitted from the unblocked area through reflection, thereby improving the brightness of the LED lamp bead. The reflective layer can be a coating applied to the surface of the light shielding portion 320, or a reflective sheet attached to the surface of the light shielding portion 320.

[0058] Figure 1 and Figure 2 The figure shows that the connecting portion 211 and the fixing portion 212 of the LED bracket 200 are located in the same horizontal plane, and the fixing portion 212 is directly connected to one end of the connecting portion 211 in the horizontal direction, so that the coupling portion 310 and the light shielding portion 320 of the light shielding bracket 300 are also located in the same horizontal plane, and the light shielding portion 320 is directly connected to one end of the coupling portion 310 in the horizontal direction. When there is a bending structure between the connecting portion 211 and the fixing portion 212 in the LED bracket 200, there is a height difference between the crystal-fixing plane 2121 and the coupling surface 2111. In order to ensure the cooperation between the crystal-fixing plane 2121 and the light shielding portion 320, and between the coupling surface 2111 and the coupling portion 310, the structure of the light shielding bracket 300 needs to be adjusted.

[0059] like Figure 6As shown, the support leg 210 also includes a bending portion 213, both ends of the bending portion 213 are connected to the connecting portion 211 and the fixing portion 212, the bending portion 213 protrudes relative to the top of the connecting portion 211, and the fixing portion 212 is higher than the connecting portion 211, so that there is a height difference between the crystal bonding plane 2121 and the bonding surface 2111, and a glue cavity 220 is formed below the fixing portion 212, and the glue cavity 220 is used to accommodate the packaging glue; the light shielding bracket 300 also includes a supporting portion 330 The two ends of the supporting portion 330 are respectively connected to the combining portion 310 and the light blocking portion 320. The supporting portion 330 protrudes toward the top of the combining portion 310. There is a height difference between the bottom surface of the light blocking portion 320 and the top surface of the combining portion 310. Since the supporting portion 330 protrudes a certain height, the supporting portion 330 can make up for the step difference between the crystal fixing plane 2121 and the combining surface 2111. The supporting portion 330 lifts the light blocking portion 320 so that the bottom surface of the combining portion 310 is fitted with the combining surface 2111. The light blocking portion 320 is located above the crystal fixing plane 2121 and on one side of the LED chip 100 to block the outgoing light of the LED.

[0060] The supporting portion 330 can be inclined relative to the combining portion 310 and the light blocking portion 320. The above-mentioned inclination means that the supporting portion 330 is not parallel or perpendicular to the light blocking portion 320 and the combining portion 310. The inclined supporting portion 330 is provided to facilitate the bending of the supporting portion 330 relative to the combining portion 310 and the light blocking portion 320, and the processing is convenient. Furthermore, the connecting surface between the supporting portion 330 and the combining portion 310, and the connecting surface between the supporting portion 330 and the fixing portion 212 are arc surfaces, and there is a smooth transition between the supporting portion 330 and the combining portion 310, and between the supporting portion 330 and the fixing portion 212, so that the encapsulation glue can be in close contact with the connecting surface, avoiding the existence of a gap between the encapsulation glue and the connecting surface due to the excessive bending angle at the connecting surface, thereby affecting the encapsulation effect.

[0061] Similarly, the bending portion 213 is tilted relative to the fixing portion 212 and the connecting portion 211 to reduce the bending angle of the bending portion 213 relative to the fixing portion 212 and the connecting portion 211; the connecting surfaces between the bending portion 213 and the connecting portion 211, and between the bending portion 213 and the fixing portion 212 are arc-shaped, which facilitates the packaging glue to flow at the connecting surface and to be in close contact with the connecting surface, thereby improving the sealing effect of the packaging glue at the connecting surface.

[0062] It should be noted that after the LED bracket 200 and the light blocking bracket 300 are initially combined, the light blocking bracket 300 is on the top and the LED bracket 200 is on the bottom. When packaging, the two are reversed, and the LED bracket 200 is on the top, the light blocking bracket 300 is on the bottom, and the opening of the glue cavity 220 is facing upward; the packaging glue is poured into the glue cavity 220, the packaging glue fills the glue cavity 220, and flows downward through the vias set on the LED bracket 200, the packaging glue fills the gap between the LED bracket 200 and the light blocking bracket 300, and the two are encapsulated inside. Since the glue cavity 220 is located at the bottom of the LED light-blocking component, it can block external water vapor from entering from the bottom of the LED bracket 200, and the contact area between the packaging glue and the LED bracket 200 is large, thereby improving the sealing of the LED light-blocking component after packaging; in addition, the LED bracket 200 and the light-blocking bracket 300 are only bent once, and the fluctuation of the solid crystal plane 2121 relative to the bonding surface 2111 and the bottom surface of the light-blocking part 320 relative to the top surface of the bonding part 310 is small, which facilitates the precise positioning between the LED bracket 200 and the light-blocking bracket 300, so that the light-blocking part 320 can block the outgoing light of the LED chip 100 within a preset range.

[0063] Further, such as Fig. 9 As shown, the support portion 330 includes a bending section 331 and a transition section 332. The two ends of the bending section 331 are respectively connected to the transition section 332 and the light shielding portion 320. The end of the transition section 332 away from the bending section 331 is connected to the joint portion 310. The width of the bending section 331 is smaller than the width of the transition section 332. In this embodiment, the transition section 332 is retracted. The bending section 331 with a smaller width is more conducive to the bending of the support portion 330. The width of the transition section 332 is equal to the width of the joint portion 310. On the one hand, the transition section 332 and the joint portion 310 can be set as an integral structure, which is convenient for the light shielding bracket 300 to be molded. On the other hand, the structural strength of the support portion 330 is guaranteed, so that the support portion 330 provides stable support to the light shielding portion 320.

[0064] like Figure 8 As shown, there is a gap between the support portion 330 and the bending portion 213. In order to improve the bonding strength between the LED bracket 200 and the light shielding bracket 300, in one embodiment, the support portion 330 and / or the bending portion 213 are further provided with a glue injection hole 333, and the glue injection hole 333 is provided for the packaging glue to flow through. The packaging glue can enter the gap between the support portion 330 and the bending portion 213 from the glue injection hole 333 to fill the gap, and is in close contact with the support portion 330 and the bending portion 213 to support the support portion 330 and strengthen the bonding strength between the light shielding bracket 300 and the LED bracket 200. It should be noted that the transition section 332 is wider than the bending section 331, so a glue injection hole 333 of sufficient width can be provided for the packaging glue to flow so that the packaging glue can fully fill the gap.

[0065] like Fig. 9 As shown, the top surface of the light shielding portion 320 is set to be a curved surface, so as to cooperate with the packaging glue. Specifically, after the LED bracket 200 and the light shielding bracket 300 are combined and packaged, the packaging glue forms a protruding lens structure on the top of the LED bracket 200. The top surface of the lens structure is generally set to be a curved surface, which has the characteristics of a high top and a low edge. The curvature of the top surface of the light shielding portion 320 can be the same as the curvature of the top surface of the lens structure, so that the light output of the LED lamp bead is more uniform.

[0066] like Fig.10 As shown, the LED bracket 200 includes a plurality of legs 210, and the plurality of legs 210 are arranged at intervals, and there is a packaging gap between adjacent legs 210, and the packaging gap is connected to the glue cavity 220; during packaging, the packaging glue first flows into the glue cavity 220, and quickly flows to the top of the LED bracket 200 through the packaging gap, and the LED chip 100 installed on the fixing part 212 is packaged in the packaging glue, thereby improving the glue filling efficiency, and the packaging glue can flow from different positions of the LED bracket 200 to the top of the LED bracket 200, and the packaging glue and the LED bracket 200 are tightly combined.

[0067] It should be noted that the packaging gap includes the gap along the extension direction of the support leg 210 and the gap perpendicular to the extension direction of the support leg 210. Fig.10 As shown, along the extension direction of the legs 210, the plurality of legs 210 are arranged in two rows, at least one row includes no less than two legs 210, and in the row, the legs 210 are spaced apart, a first packaging gap 230 is formed between adjacent legs 210, and a second packaging gap 240 is provided between legs 210 in different rows, each first packaging gap 230 is connected to the second packaging gap 240, and the first packaging gap 230 and the second packaging gap 240 are both connected to the glue cavity 220. Thus, the packaging glue in the glue cavity 220 can quickly flow to the top of the LED bracket 200 through the first packaging gap 230 and the second packaging gap 240, and since the LED chip 100 is mounted on the fixing portion 212, a second packaging gap 240 is formed between the fixing portions 212 of two legs 210 in adjacent rows, and the packaging glue flowing out of the second packaging gap 240 can quickly fill the gap between the LED chips 100, and the LED chip 100 is encapsulated in the interior of the packaging glue.

[0068] It should be noted that, since the support leg 210 is generally a long strip structure, the extension direction of the support leg 210 should be the length direction of the support leg 210 ( Fig.10 The front-to-back direction in the figure), and the direction perpendicular to the extension of the support leg 210 should be the width direction of the support leg 210 ( Fig.10 left and right directions in the image).

[0069] The height of the crystal-fixing plane 2121 should not be lower than the height of the connection between the fixing part 212 and the bending part 213, so that the crystal-fixing plane 2121 is at the highest position of the support leg 210. After the chip is installed on the crystal-fixing plane 2121, the LED chip 100 protrudes from the surface of the fixing part 212, and the emitted light of the LED chip 100 is not blocked by other components, so as to increase the light irradiation range of the LED chip 100.

[0070] It should be noted that a crystal fixing plane 2121 is provided on the fixing portion 212 of at least one leg 210, that is, multiple LED chips 100 can be installed on the same leg 210 at the same time, or installed on different legs 210 in a dispersed manner. Multiple LED chips 100 can be provided, and multiple LED chips 100 can be of the same type or different types.

[0071] Accordingly, multiple legs 210 can be selectively provided, such as four, six or eight. In one embodiment of the present invention, six legs 210 are provided, each column includes three legs 210, and the shapes of the legs 210 in different columns are different. Among the legs 210 located in the front column, the width of the middle leg 210 is larger, providing sufficient crystal bonding plane 2121 for the LED chip 100, and installing the LED chip 100 on the middle leg 210 is also convenient for the LED chip 100 to be connected to other legs 210 through wires; different LED chips 100 can use the same leg 210 as the positive or negative electrode.

[0072] Furthermore, at least one of the bottom surface of the fixing portion 212, the bending portion 213 and the top surface of the connecting portion 211 is provided with a close contact area, and a plurality of pits are provided in the close contact area. The provision of the pits can increase the friction coefficient of the surface of the support leg 210 and the contact area between the support leg 210 and the packaging glue, so that the packaging glue and the support leg 210 are tightly combined. The pits can be densely distributed pits provided in the close contact area, or can be concave stripes in the close contact area; the bottom surface of the fixing portion 212 refers to the surface facing the glue cavity 220, the inner and outer surfaces of the bending portion 213 can be provided with a close contact area, and the bottom surface of the connecting portion 211 is not provided with packaging glue, and the close contact area can be provided on the upper surface of the connecting portion 211.

[0073] In addition, the side of the support leg 210 is provided with a plurality of grooves 250, which are recessed toward the inner side of the support leg 210. The provision of the grooves 250, on the one hand, facilitates the bending jig to position the support when the support is bent, and on the other hand, increases the contact area between the side of the support leg 210 and the packaging glue, thereby strengthening the bonding strength between the support leg 210 and the packaging glue. Grooves 250 can be provided on both sides of the support leg 210, and multiple grooves 250 can be provided on each side, and the grooves 250 are spaced apart along the extension direction of the support leg 210; in order to ensure the flatness of the fixing portion 212 after the LED bracket 200 is bent, the grooves 250 should be provided on both sides of the fixing portion 212 as much as possible, so that the bending jig can accurately limit the fixing portion 212.

[0074] In one embodiment, Fig.11 and Fig.12 As shown, the LED light blocking assembly also includes a bottom plate 400 and a substrate 500. The bottom plate 400 is provided with a plurality of through grooves 410. Each through groove 410 contains an LED bracket 200. The LED bracket 200 is connected to the groove wall of the through groove 410. The substrate 500 is provided with a plurality of mounting grooves 510. The light blocking brackets 300 are spaced apart in the mounting grooves 510 and connected to the groove wall of the mounting grooves 510. At least a portion of the LED bracket 200 can pass through the mounting grooves 510 from the bottom of the light blocking bracket 300 to the top of the light blocking bracket 300, so that the substrate 500 and the bottom plate 400 are overlapped with each other, so that multiple LED brackets 200 and light blocking brackets 300 can continue to be combined at the same time, and the assembly efficiency of the LED light blocking assembly is high.

[0075] It should be noted that the combination of the substrate 500 and the bottom plate 400 can enable multiple LED brackets 200 and light blocking brackets 300 to cooperate with each other, and at the same time, the combined structure of multiple LED brackets 200 and light blocking brackets 300 is packaged, and then the LED light blocking assembly is cut to form a packaging structure with only a single LED bracket 200 and a light blocking bracket 300, that is, an LED lamp bead, thereby improving the production efficiency of the LED lamp bead.

[0076] In addition, a positioning hole 420 is provided on the side of the bottom plate 400, and a plurality of limiting protrusions 520 are provided on the edge of the substrate 500. The limiting protrusions 520 correspond to the positions of the positioning holes 420, and the limiting protrusions 520 can be inserted into the positioning holes 420, so as to realize the mutual limiting of the substrate 500 and the bottom plate 400, and improve the combination accuracy of the LED bracket 200 and the light shielding bracket 300. In one embodiment, the limiting protrusions 520 are arranged at intervals along the length direction of the substrate 500, and are arranged in two rows. The two rows of limiting protrusions 520 cooperate with the limiting holes on the LED bracket 200, which can further optimize the combination accuracy of the LED bracket 200 and the light shielding bracket 300.

[0077] Specifically, refer to Fig.13 and Fig.14 The combining portion 310 of the light-blocking bracket 300 is connected to the groove wall of the mounting groove 510, and each mounting groove 510 can accommodate multiple LED brackets 200; the LED bracket 200 also includes an external body 260, and two external bodies 260 are provided. The two external bodies 260 are symmetrically arranged relative to the direction perpendicular to the extension of the support leg 210, and each connecting portion 211 is connected to the external body 260. Each column is provided with an external body 260, and the external body 260 is used to connect the support legs 210 of the column into one body, so as to facilitate the overall bending of the LED bracket 200; the base plate 400 also includes a suspension body 430, one end of the suspension body 430 is connected to the groove wall of the through groove 410, and the other end is connected to the external body 260, so as to realize the mutual connection between the LED bracket 200 and the base plate 400.

[0078] The LED bracket 200 is distributed in an array within the base plate 400. There is a gap between the outer periphery of the LED bracket 200 and the groove wall of the through groove 410. It also includes a plurality of positioning protrusions 440. The positioning protrusions 440 are connected to the groove wall of the through groove 410 and protrude toward the LED bracket 200. The positioning protrusions 440 are used for positioning the base plate 400 using a processing jig to ensure the bending accuracy or cutting accuracy of the LED bracket 200.

[0079] Reference Fig.15 The present invention also provides an LED lamp bead, including the above-mentioned LED light-blocking component, and also including an LED chip 100, a lead 600 and a packaging glue 700. The LED chip 100 is installed on the solid crystal plane 2121 on the LED bracket 200, one end of the lead 600 is connected to the LED chip 100, and the other end of the lead 600 is connected to the fixing part 212 on the unused support leg 210 of the LED chip 100, so that the positive and negative poles of the LED chip 100 are electrically connected to different support legs 210 respectively, the packaging glue 700 covers the support legs 210, and forms a protrusion 710 above the fixing part 212, and the projection of the protrusion 710 to the solid crystal plane 2121 is one of an ellipse, a circle or a polygon.

[0080] It should be noted that the packaging glue 700 is contained in the glue cavity 220, the first packaging gap 230, and the second packaging gap 240. The packaging glue 700 covers the support foot 210 and forms a protrusion 710 above the fixing portion 212. The protrusion 710 forms a lens structure on the top of the support foot 210. The protrusion 710 includes a ball head 711 located at the top and a middle part 712 for connecting the ball head 711 and the support foot 210. The top surface of the ball head 711 can be set to an arc surface. By changing the slope of the arc surface, the light output angle of the LED lamp bead can be adjusted. The top surface of the ball head 711 can also be set to a plane, a curved surface, etc. The middle part is cylindrical, and its cross-section can be a circle, an ellipse or a polygon.

[0081] The LED lamp bead provided in the present invention fixes the LED chip 100 in a patch manner. Compared with traditional patch-type lamp beads, the light output range of the LED lamp bead can be adjusted by changing the size and shape of the top plane of the protrusion 710, and the processing convenience is high; because the LED chip 100 is located on the top of the fixing part 212, there is no need to set a reflective cup, the output light of the LED chip 100 is not blocked, the light output range is large, and the brightness is high; and, the fixing part 212 is bent once, and the glue cavity 220 below it isolates the bottom water vapor, and improves the bonding strength between the packaging glue and the LED bracket 200 and the light blocking bracket 300, and the sealing effect is good.

[0082] The packaged LED light shielding assembly is cut, the connection portion 211 is separated from the external body 260, and the joint portion 310 is separated from the groove wall of the installation groove 510, so as to form a combined packaging structure of the LED bracket 200, the light shielding structure, and the LED chip 100, and obtain an LED lamp bead. The connection portion 211 can be completely packaged in the packaging glue 700, or partially exposed outside the packaging glue 700. In one embodiment, one end of the connection portion 211 extends out of the packaging glue 700 to facilitate the later maintenance of the LED lamp bead.

[0083] There can be multiple LED chips 100 in each LED lamp bead, and the multiple LED chips 100 can be of the same type or different types. For example, the type of the LED chip 100 can be one or more groups of RGB, RGBR, RY, RG, RGR, and W.

[0084] The present invention also provides an LED lamp, comprising the above-mentioned LED lamp beads, and also comprising a lamp frame, wherein the lamp frame is used to install the LED lamp beads. The LED lamp beads in the present invention have a light-blocking effect, and can irradiate light in a preset direction, without the need to set a light-blocking structure on the lamp frame, thus simplifying the structure of the LED lamp and facilitating the assembly of different components in the LED lamp.

[0085] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present invention. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. An LED light shielding component is used to shield the emitted light of the LED chip, characterized in that: include: The LED bracket includes a plurality of legs, wherein the legs have a connecting portion and a fixing portion, the top surface of the connecting portion has a bonding surface, the top surface of the fixing portion has a crystal-fixing plane, and the crystal-fixing plane is used to install the LED chip, and the legs also include a bending portion, the two ends of the bending portion are respectively connected to the connecting portion and the fixing portion in an arc, and the bending portion is inclined relative to the connecting portion and the fixing portion; A light-shielding bracket, comprising a connecting portion and a light-shielding portion connected to each other, wherein the light-shielding portion is connected to one end of the connecting portion, wherein the connecting portion is located on a side of the light-shielding portion away from the LED chip, wherein the bottom surface of the connecting portion is in contact with the connecting surface, wherein the light-shielding portion is located on a side of the LED chip and protrudes upward relative to the crystal-bonding plane, wherein the light-shielding portion can shield the outgoing light of the LED chip, wherein the light-shielding bracket further comprises a supporting portion, wherein the two ends of the supporting portion are respectively connected to the connecting portion and the light-shielding portion in an arc, wherein the supporting portion is arranged to be inclined relative to the connecting portion and the light-shielding portion; There is a gap between the support part and the bending part, and the gap is filled with packaging glue. The support part includes a bending section and a transition section. The two ends of the bending section are respectively connected to the transition section and the light blocking part. One end of the transition section away from the bending section is connected to the combining part, and the width of the bending section is smaller than the width of the transition section.

2. The LED light shielding assembly according to claim 1, characterized in that: At least one side of the light shielding portion is bent toward a direction close to the LED chip.

3. The LED light shielding assembly according to claim 1, characterized in that: The height of the bottom surface of the light shielding portion is greater than the height of the crystal bonding plane.

4. The LED light shielding assembly according to claim 1, characterized in that: A reflective layer is arranged on the side of the light blocking portion facing the LED chip.

5. The LED light shielding assembly according to claim 1, characterized in that: The supporting portion protrudes toward the top of the combining portion; the bending portion protrudes relative to the top of the connecting portion to form a glue containing cavity below the fixing portion, and the glue containing cavity is used to contain packaging glue.

6. The LED light shielding assembly according to claim 5, characterized in that: The support portion and / or the bending portion is provided with a glue injection hole, and the glue injection hole is communicated with the glue containing cavity.

7. The LED light shielding assembly according to claim 5, characterized in that: The plurality of legs are arranged at intervals, and packaging gaps are provided between adjacent legs, and the packaging gaps are communicated with the glue containing cavity.

8. The LED light shielding assembly according to any one of claims 1 to 7, characterized in that: It also includes a bottom plate and a base plate, the bottom plate is provided with a plurality of through grooves, each of the through grooves contains an LED bracket, and the LED bracket is connected to the groove wall of the through groove; the base plate is provided with a plurality of mounting grooves, the light-blocking brackets are spaced apart in the mounting grooves and connected to the groove wall of the mounting grooves, and at least a portion of the LED bracket can pass through the mounting grooves from the bottom of the light-blocking bracket to the top of the light-blocking bracket, so that the base plate and the bottom plate are overlapped with each other. 9.LED lamp beads, characterized in that, include: The LED light shielding assembly according to any one of claims 1 to 8; LED chip, mounted on the die-bonding plane; A lead wire, one end of which is connected to the LED chip, and the other end of which is connected to the fixing portion on the support leg different from the LED chip; The packaging glue covers the support leg and forms a protrusion above the fixing portion, wherein the projection of the protrusion onto the die-bonding plane is one of an ellipse, a circle or a polygon.

10. LED lamp, characterized in that, include: The LED lamp bead according to claim 9; A lamp frame, wherein the LED lamp beads are installed on the lamp frame.

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