LED lamp bead and light-emitting device
By setting receiving grooves and bosses on the LED lamp bead bracket and using the cooperation of limiting grooves and limiting blocks, the problems of bracket shadow and insufficient airtightness during the lamp bead production process are solved, the stability and airtightness of the bonding wire are improved, and the service life of the lamp bead is extended.
Patent Information
- Application Number
- CN202423248816.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Existing LED chips are prone to issues such as bracket shadows and airtightness during the manufacturing process, leading to poor wire bonding and insufficient airtightness.
By setting receiving grooves and bosses on the bracket, and using the limiting grooves and limiting blocks on both sides of the bosses, the metal parts have a stable force support point when bent, avoiding warping. The limiting grooves and limiting blocks also help to ensure that the metal parts fit seamlessly with the bracket, achieving airtightness.
The bracket shadow problem was solved, the airtightness of the LED chips and the quality of the soldering wires were improved, and the service life of the LED chips was extended.
Smart Images
Figure CN223652648U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of LED, especially to a LED lamp pearl and light emitting device. BACKGROUND
[0002] With the wide application of display screen technology, the application scenarios are also diversified, and the concentration of the RGB LED display market is high since the beginning of the industry, especially in recent years with the gradual maturity of technology and the growth of the market, the advantages of the head enterprises in technology innovation, capacity expansion, capital support, brand influence and channel layout are more and more obvious, and the head RGB LED display screen enterprises occupy more and more market share. As one of the key components of the display panel, the function of the light-emitting lamp pearl is to supply sufficient brightness and uniformly distributed light source for the display, and with the wide application of display screen technology, the application of the key components of the display screen, LED lamp pearl, becomes more and more important.
[0003] As the smallest unit of the display screen, the LED lamp pearl presents a colorful picture through the combination of different colors. The driving circuit, like the "heart" of the display screen, is responsible for controlling the brightness and color of the LED lamp pearl, and ensures the accurate presentation of the picture. With the wide application of display screen technology and the policy support of the state to commercial display, LED display will be used in more and more occasions, and then the key components of the display screen, LED lamp pearl, become more and more important, especially the stability of the lamp pearl performance and the air tightness in the process of use are particularly important for LED display screen, and the performance of the LED lamp pearl mainly depends on the structure and material of the lamp pearl, and the structure of the lamp pearl mainly depends on the support structure.
[0004] In the preparation of the existing LED lamp pearl, the support is usually integrally formed, the light-emitting chip is arranged in the bowl cup at the top of the support, and a part of the metal piece is inserted into the bowl cup through the channel communicated with the outside of the support side as a metal pad, so that the metal pad can be connected with the light-emitting chip through the lead wire, and the other part of the metal piece is bent as a pin. However, the metal piece is usually bent by the middle part of the metal piece abutting against the support as a fulcrum, but the part of the metal piece inserted into the bottom of the bowl cup is not abutted against any object, so that the part of the metal piece inserted into the bowl cup will be warped upward when the metal piece is bent, resulting in uneven pad, that is, the commonly known support shadow; this condition is easy to cause poor soldering in the process of packaging soldering, and there is a risk of lamp pearl dead lamp, and at the same time, due to the bending, a slight gap is easily generated between the metal piece and the support, resulting in air tightness problem of the lamp pearl. UTILITY MODEL CONTENTS
[0005] Therefore, the utility model aims at providing a LED lamp pearl and light emitting device, which solves the problem of support shadow in the production process of the lamp pearl in the prior art.
[0006] The utility model discloses a LED lamp pearl, including support, set up on the support light -emitting chip and metal piece, the support includes upper support part and lower support part, the upper support part is equipped with the accommodation groove for accommodating the light -emitting chip, the accommodation groove is equipped with the boss formed by the lower support part upward extension, be equipped with the mounting groove for installing the light -emitting chip on the boss, the boss both sides are equipped with the lateral passage that is enclosed by the upper support part and the lower support part, the metal piece one end passes through the lateral passage and is placed in the accommodation groove, the boss both sides are equipped with the limit slot, and the metal piece is equipped with the limit block that is adapted with the limit slot on the boss one side.
[0007] The above-mentioned LED lamp pearl, through setting up the accommodation groove on the support, makes the light-emitting chip fixed in the accommodation groove, then through the boss that the lower support part extends out from the bottom of the accommodation groove, makes the light-emitting chip fixed in the mounting groove on the boss, through the limit slot that sets up on the boss both sides, makes the metal piece pass through the lateral passage on the support both sides of the boss and enter the accommodation groove, and makes the limit block on the metal piece and the limit slot adapt, and then makes when needing to bend the metal piece, through the contact point of the lateral passage top and the metal piece as the force fulcrum, bends the metal piece, and through the limit slot and the limit block cooperation limit the top of the metal piece, and then guarantees when bending the metal piece, the metal piece from the limit block to the lateral passage, will not be affected by the bending and produce warping, so as to guarantee that the metal piece in the accommodation groove and the support are completely attached, thus avoiding the generation of the support shadow, and because the metal piece and the support are curved and attached without gap, and then also guarantee the air tightness of the support inside. Therefore, the utility model solves the problem that the lamp pearl production process in the prior art is prone to the support shadow.
[0008] In addition, the LED lamp pearl according to the utility model can also have the following additional technical features:
[0009] Preferably, the limit block is in a stepped shape, and a plurality of limit slots are distributed and combined into a stepped slot along the length direction of the boss at equal intervals, so that the stepped slot is adapted with the limit block.
[0010] Preferably, the cross-sectional area of the limit slot gradually increases from one side of the boss to the other side, and the limit block is in a conical shape to be adapted with the limit slot.
[0011] Preferably, the metal piece forms a soldering area at one end of the accommodation groove, and the light-emitting chip is connected with the soldering area through a lead wire.
[0012] Preferably, the bottom of the lower support part is provided with a positioning slot, and the metal piece is covered outside the lower support part at the end away from the boss to form a pin, and at least part of the pin is attached to the positioning slot.
[0013] Preferably, the lower support portion is provided with an inclined surface on both sides, so that the cross-sectional area of the lower support portion gradually decreases from one end of the accommodating groove to the other end.
[0014] Preferably, the cross-sectional area of the accommodating groove gradually increases from the bottom to the top.
[0015] Preferably, the lower support portion is provided with a transition fillet on the outer side, which is in close contact with the metal piece.
[0016] Preferably, the support is integrally injection molded by a plastic material, and the accommodating groove is provided with encapsulation glue.
[0017] In addition, the utility model also provides a light emitting device, the light emitting device includes the LED lamp pearl of above. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is the structure schematic view of LED lamp pearl that the utility model one embodiment proposes;
[0019] Figure 2 It is the structure schematic view of LED lamp pearl that the utility model another embodiment proposes.
[0020] Main element symbol explanation:
[0021] support 10 light emitting chip 20 metal piece 30 upper support portion 11 lower support portion 12 accommodation groove 13 boss 14 mounting groove 141 transverse channel 15 limiting groove 142 limiting block 31 wire 40 positioning groove 16 inclined surface 17 transition fillet 18
[0022] The following detailed description will further illustrate the utility model in combination with the above-mentioned drawings. DETAILED DESCRIPTION
[0023] In order to facilitate understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings. The drawings show several embodiments of the utility model. However, the utility model can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.
[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be a middle element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.
[0025] Unless otherwise defined, 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 herein is for describing particular embodiments only and is not intended to be limiting of the application. The use herein of the terms "and / or" includes a set of one or more associated listed items.
[0026] Referring to Figure 1 , the LED lamp bead in the embodiment of the application is shown, comprising a support 10, a light emitting chip 20 and a metal piece 30 arranged on the support 10, wherein:
[0027] The support 10 comprises an upper support part 11 and a lower support part 12, the upper support part 11 is provided with a containing groove 13 for containing the light emitting chip 20, the containing groove 13 is provided with a boss 14 extending upward from the lower support part 12, the boss 14 is provided with a mounting groove 141 for mounting the light emitting chip 20, the boss 14 is provided with a lateral passage 15 formed by the upper support part 11 and the lower support part 12 on both sides, one end of the metal piece 30 is arranged in the containing groove 13 through the lateral passage 15, the boss 14 is provided with a limiting groove 142 on both sides, the metal piece 30 is provided with a limiting block 31 on the side close to the boss 14, which is matched with the limiting groove 142.
[0028] It can be understood that, by arranging the containing groove 13 on the support 10, the light emitting chip 20 is fixed in the containing groove 13, and then the boss 14 extending out from the lower support part 12 at the bottom of the containing groove 13 is arranged, so that the light emitting chip 20 is fixed in the mounting groove 141 on the boss 14, and the limiting groove 142 is arranged on both sides of the boss 14, so that the metal piece 30 is arranged in the containing groove 13 through the lateral passage 15 on the support 10 on both sides of the boss 14, and the limiting block 31 on the metal piece 30 is matched with the limiting groove 142, so that when the metal piece 30 needs to be bent, the contact point between the top of the lateral passage 15 and the metal piece 30 is used as a force fulcrum to bend the metal piece 30, and the top of the metal piece 30 is limited by the limiting groove 142 and the limiting block 31, so that when the metal piece 30 is bent, the metal piece 30 from the limiting block 31 to the lateral passage 15 is not affected by the bending to produce warping, so that the metal piece 30 arranged in the containing groove 13 is completely attached to the support 10, thus avoiding the generation of support shadow, and since the metal piece 30 is bent and attached to the support 10 without gap, the air tightness of the support 10 is ensured. Therefore, the application solves the problem that the lamp bead production process in the prior art is prone to generate support shadow.
[0029] Specifically, the limiting block 31 is in a stepped shape, and a plurality of limiting grooves 142 are distributed equidistantly and staggered along the length direction of the boss 14 to form a stepped groove, so that the stepped groove is matched with the limiting block 31. In specific implementation, the plurality of limiting grooves 142 and the stepped limiting block 31 are matched to increase the contact area between the limiting block 31 and the limiting groove 142, reduce stress concentration, and avoid the condition that the local stress of the limiting block 31 is too large to deform.
[0030] Specifically, the metal piece 30 is arranged at one end of the accommodating groove 13 to form a soldering area, and the light emitting chip 20 is connected with the soldering area through the lead wire 40. By arranging the metal piece 30 at one end of the accommodating groove 13 to form the soldering area, the light emitting chip 20 can be connected with external power supply equipment through the metal piece 30 to realize the light emitting function of the lamp bead. In addition, the cross-sectional area of the accommodating groove 13 gradually increases from the bottom to the top. By arranging the accommodating groove 13 in a tapered shape, the light emitting angle of the light emitting chip 20 is improved, thereby ensuring the light emitting effect of the lamp bead.
[0031] Further, the bottom of the lower support part 12 is provided with a positioning groove 16, and the metal piece 30 is wrapped outside the lower support part 12 to form a pin at the end away from the boss 14, and at least partially abuts with the positioning groove 16. By arranging the positioning groove 16, after the one end of the metal piece 30 is bent, the other end is also bent and abuts against the support 10 and is fixed in the positioning groove 16, thereby realizing the fixing effect of the metal piece 30.
[0032] In addition, the lower support part 12 is provided with an inclined surface 17 on both sides, so that the cross-sectional area of the lower support part 12 gradually decreases from one end close to the accommodating groove 13 to the other end. By arranging the inclined surface 17, the bending difficulty of the metal piece 30 is further reduced, and the abutting effect of the metal piece 30 and the lower support part 12 is increased, so that the abutting effect between the metal piece 30 and the support 10 is good enough, and the gap between the metal piece 30 and the support 10 in some areas is avoided, which affects the air tightness of the lamp bead. Specifically, the outer side of the lower support part 12 is provided with a transition fillet 18 abutting with the metal piece 30. By arranging the transition fillet 18, the abutting effect of the lower support part 12 and the metal piece 30 is further increased, and the bending radius of the bent part of the metal piece 30 is reduced, so that the metal piece 30 still has sufficient structural strength after bending, and the service life of the metal piece 30 is prolonged.
[0033] Specifically, the support 10 is integrally injection molded by a plastic material, and the accommodating groove 13 is provided with encapsulation glue. By adopting the plastic material, the support 10 is integrally injection molded by a mold, the production efficiency of the support 10 is improved, after the injection molding is completed, the metal piece 30 is arranged to be located in the limiting groove 142 in the accommodating groove 13 through the transverse channel, and the metal piece 30 is bent, and the assembly and manufacturing of the lamp bead are completed. In addition, the light-emitting chip 20 is encapsulated by arranging the encapsulation glue, and the influence of water vapor on the light-emitting chip 20 is avoided.
[0034] By way of example, and not limitation, in some alternative embodiments, reference is made to Figure 2 support light emitting chip metal piece upper support portion lower support portion accommodation groove boss mounting groove transverse channel limiting groove limiting block wire positioning groove inclined surface transition fillet Figure 1 Figure 2 , which shows the LED lamp bead in another embodiment of the utility model, and the difference between this embodiment and the above-mentioned embodiment is that the cross-sectional area of the limiting groove 142 gradually increases from one side close to the boss 14 to the other side, and the limiting block 31 is conical to adapt to the limiting groove 142. In actual use, the limiting block 31 is arranged to be conical, so that the limiting block 31 is more easily inserted into the limiting groove 142, and the assembly of the limiting block 31 and the limiting groove 142 is relatively rectangular, the friction between the limiting block 31 and the limiting groove 142 is less, the influence of friction on the assembly between the limiting block 31 and the limiting groove 142 is avoided, so as to ensure the assembly fit between the limiting block 31 and the limiting groove 142, and avoid the generation of local gaps.
[0035] In summary, the LED lamp bead in the above-mentioned embodiment of the utility model is arranged on the support 10, the light-emitting chip 20 is fixed in the accommodating groove 13, the boss 14 extending from the lower support part 12 at the bottom of the accommodating groove 13 fixes the light-emitting chip 20 in the mounting groove 141 on the boss 14, the limiting groove 142 is arranged on both sides of the boss 14, the metal piece 30 is arranged in the accommodating groove 13 through the transverse channel 15 on the support 10 on both sides of the boss 14, the limiting block 31 on the metal piece 30 is adapted to the limiting groove 142, and when the metal piece 30 needs to be bent, the contact point between the top of the transverse channel 15 and the metal piece 30 is used as a force fulcrum to bend the metal piece 30, and the top of the metal piece 30 is limited by the limiting groove 142 and the limiting block 31, so that when the metal piece 30 is bent, the metal piece 30 from the limiting block 31 to the transverse channel 15 is not affected by the bending and is not warped, so that the metal piece 30 in the accommodating groove 13 is completely attached to the support 10, and therefore the support shadow is avoided, and since the metal piece 30 and the support 10 are bent and attached without gaps, the air tightness of the support 10 is ensured. Therefore, the utility model solves the problem that the lamp bead production process in the prior art is prone to support shadow.
[0036] In addition, the utility model still provides a kind of light emitting device, the light emitting device includes above-mentioned LED lamp pearl, in light emitting device, because the setting cooperation of limiting groove 142 and limiting block 31 in LED lamp pearl, avoid support shadow, further prolongs the service life of LED lamp pearl, to prolong the service life of light emitting device.
[0037] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" 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 utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0038] The above-described embodiments only express several implementation manners of the utility model, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the utility model patent. It should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.
Claims
1. An LED lamp bead, characterized in that, The bracket includes an upper bracket part and a lower bracket part, the upper bracket part is provided with a containing groove for containing the light emitting chip, a boss formed by upward extension of the lower bracket part is arranged in the containing groove, a mounting groove for mounting the light emitting chip is arranged on the boss, lateral passages formed by the upper bracket part and the lower bracket part are arranged on both sides of the boss, one end of the metal piece is arranged in the containing groove through the lateral passages, limiting grooves are arranged on both sides of the boss, and a limiting block adapted to the limiting grooves is arranged on the side of the metal piece close to the boss.
2. The LED lamp bead of claim 1, wherein, The limiting block is in a stepped shape, and a plurality of limiting grooves are distributed and combined into a stepped groove in an equidistant staggered manner along the length direction of the boss, so that the stepped groove is adapted to the limiting block.
3. The LED lamp bead of claim 1, wherein, The cross-sectional area of the limiting groove gradually increases from the side close to the boss to the other side, and the limiting block is in a conical shape to be adapted to the limiting groove.
4. The LED lamp bead of claim 1, wherein, The metal piece is arranged at one end of the containing groove to form a soldering area, and the light emitting chip is connected to the soldering area through a lead wire.
5. The LED lamp bead of claim 4, wherein, The bottom of the lower bracket part is provided with a positioning groove, and the end of the metal piece away from the boss is wrapped outside the lower bracket part to form a pin, and at least part of the pin is attached to the positioning groove.
6. The LED lamp bead of claim 5, wherein, Both sides of the lower bracket part are provided with inclined surfaces, so that the cross-sectional area of the lower bracket part gradually decreases from the end close to the containing groove to the other end.
7. The LED lamp bead of claim 1, wherein, The cross-sectional area of the containing groove gradually increases from the bottom to the top.
8. The LED lamp bead of claim 5, wherein, The outside of the lower bracket part is provided with a transition round corner attached to the metal piece.
9. The LED lamp bead of claim 8, wherein, The bracket is integrally injection molded by a plastic material, and the containing groove is provided with a packaging glue.
10. A light-emitting device, characterized in that, The LED lamp bead includes the bracket according to any one of claims 1 to 9. The bracket includes an upper bracket part and a lower bracket part, the upper bracket part is provided with a containing groove for containing the light emitting chip, a boss formed by upward extension of the lower bracket part is arranged in the containing groove, a mounting groove for mounting the light emitting chip is arranged on the boss, lateral passages formed by the upper bracket part and the lower bracket part are arranged on both sides of the boss, one end of the metal piece is arranged in the containing groove through the lateral passages, limiting grooves are arranged on both sides of the boss, and a limiting block adapted to the limiting grooves is arranged on the side of the metal piece close to the boss. The limiting block is in a stepped shape, and a plurality of limiting grooves are distributed and combined into a stepped groove in an equidistant staggered manner along the length direction of the boss, so that the stepped groove is adapted to the limiting block. The cross-sectional area of the limiting groove gradually increases from the side close to the boss to the other side, and the limiting block is in a conical shape to be adapted to the limiting groove. The metal piece is arranged at one end of the containing groove to form a soldering area, and the light emitting chip is connected to the soldering area through a lead wire. The bottom of the lower bracket part is provided with a positioning groove, and the end of the metal piece away from the boss is wrapped outside the lower bracket part to form a pin, and at least part of the pin is attached to the positioning groove. Both sides of the lower bracket part are provided with inclined surfaces, so that the cross-sectional area of the lower bracket part gradually decreases from the end close to the containing groove to the other end. The cross-sectional area of the containing groove gradually increases from the bottom to the top. The outside of the lower bracket part is provided with a transition round corner attached to the metal piece. The bracket is integrally injection molded by a plastic material, and the containing groove is provided with a packaging glue. The LED lamp bead includes the bracket according to any one of claims 1 to 9.