LED support with simplified structure
By simplifying the LED bracket structure and reducing the number of jamming points, the problem of jamming point matching during injection molding was solved, which improved production efficiency and mold maintenance frequency, and enhanced the strength of the metal sheet.
Patent Information
- Application Number
- CN202423220182.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing LED brackets have high requirements for the fit clearance of the glue clamping parts during injection molding, which leads to plastic overflow or metal burrs, resulting in waste, frequent mold repairs, and low production efficiency.
Design a simplified LED bracket to reduce the number of adhesive clamping positions. Connect the support part and the lead part through an overflow groove to form four sets of adhesive clamping positions, simplifying the mold structure and improving production efficiency.
It reduces the rate of misfit between the glue-holding area and the mold core, reduces mold processing and maintenance costs, improves production efficiency, and enhances the overall strength of the metal sheet, making demolding easier.
Smart Images
Figure CN223681441U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of LED support, especially a structure simplified LED support. BACKGROUND
[0002] LED (Light Emitting Diode) is a kind of solid-state semiconductor device that can convert electric energy into visible light, it can directly convert electricity into light. The heart of LED is a semiconductor wafer, one end of wafer is attached to a bracket, one end is negative, the other end is connected to the positive of power supply, so that the whole wafer is encapsulated by epoxy resin, which has many advantages such as small size, low power consumption, long service life, high brightness, low heat, environmental protection, solid and durable, etc. It is the most ideal light source.
[0003] On the metal sheet of LED support, each group of LED support has support parts arranged on both sides for supporting encapsulated plastic, and at least two groups of pin parts (one group of positive pin part and negative pin part), in the injection molding process, the end of support part and pin part are encapsulated in plastic, therefore, there are glue clamping positions on both sides of support part and both sides of pin part, that is, at least eight groups of glue clamping positions, the cooperation gap between glue clamping position and recess on injection mold core, in actual production, the precision requirement of cooperation gap is very high, if the cooperation gap is too large, it will cause plastic overflow from the cooperation gap to form plastic burr during injection molding, if the cooperation gap is too small, it will cause LED support sheet to scratch the mold when put in, on the whole plate metal sheet, as long as there is a glue clamping position with burr, the whole plate needs to be scrapped, which not only causes great waste, but also frequent mold repair and low production efficiency, therefore, it is necessary to make a structure simplified LED support, which can reduce the glue clamping position of single group of LED support, to solve the above problems. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at providing a structure simplified LED support to solve the problems mentioned in the background art.
[0005] In order to achieve the above purpose, the utility model provides the following technical scheme:
[0006] The utility model provides a LED support of simple structure, including metal sheet, evenly equipped with multiple groups of support unit on metal sheet, and each group of support unit includes integrally arranged frame, first support part, second support part, first pin part and second pin part, and each group of support unit also includes encapsulation plastic, the middle part of frame is equipped with through -hole, and encapsulation plastic sets up in through -hole, the outside of first support part is connected with frame and the inside is fixed in the left end inside of encapsulation plastic, the outside of second support part is connected with frame and the inside is fixed in the right end inside of encapsulation plastic, the outside of first pin part is connected with frame and the inside is fixed in encapsulation plastic, the outside of first pin is connected with the outside of first support part and forms first overflow glue groove between, and first overflow glue groove protrudes from the outside of encapsulation plastic, and the outside of second pin part is connected with the outside of second support part and forms second overflow glue groove between, and second overflow glue groove protrudes from the outside of encapsulation plastic.
[0007] Further description of the utility model: the length that first overflow glue groove protrudes from encapsulation plastic is 0.01mm to 0.2mm, and the length that second overflow glue groove protrudes from encapsulation plastic is 0.01mm to 0.2mm.
[0008] Further description of the utility model: first pin part and second pin part correspond to the same side of encapsulation plastic.
[0009] Further description of the utility model: first pin part sets up two groups and corresponds to the front and rear sides of encapsulation plastic respectively, and second pin part sets up two groups and corresponds to the front and rear sides of encapsulation plastic respectively.
[0010] The utility model has the advantages that: from eight groups of card glue position in prior art, sharp reduction is four groups of card glue position, namely, the card glue position of whole board metal sheet reduces half, thereby making the cooperation exception rate of card glue position and mould core reduce more than one time, improve production efficiency, the complexity degree of mould core structure also reduces, reduce the expense and time of mould processing and maintenance, simultaneously, in the demoulding stage after injection, because support part and pin part are still in the connection state, therefore, the overall strength of metal sheet is higher, is easier to demould. ACCURACY OF DRAWINGS
[0011] Figure 1 It is the structure schematic view of support unit in stamping stage in prior art;
[0012] Figure 2 It is the structure schematic view of support unit in injection stage in prior art;
[0013] Figure 3 It is the structure schematic view of support unit in cutting stage in prior art;
[0014] Figure 4 It is the structure schematic view of support unit in stamping stage in the utility model;
[0015] Figure 5 is a structure schematic view of the support unit in the injection stage of the utility model;
[0016] Figure 6 is a structure schematic view of the support unit in the pin cutting stage of the utility model;
[0017] Figure 7 is Figure 6 the local enlarged view of A position in the utility model;
[0018] Explanation of reference signs:
[0019] 1, support unit; 11, frame; 111, through hole; 12, first support part; 13, second support part;
[0020] 14, first pin part; 15, second pin part; 16, encapsulation plastic; 17, first overflow groove; 18, second overflow groove; 2, glue clamping position; 3, mold core; 4, cutting area. Specific implementation
[0021] The utility model is further explained below in combination with the drawings:
[0022] As Figures 1 to 3 shown, it is the flow chart of the prior LED lamp manufacturing process, as Figure 1 shown, in the stamping stage, the single support unit 1 is provided with the first support part 12 and the first pin part 14 not connected with each other and the second support part 13 and the second pin part 15 not connected with each other in the frame. As Figure 2 shown, in the injection stage, the first support part 12, the second support part 13, the first pin part 14 and the second pin part 15 are placed in four groups of recesses on the mold core 3 respectively, and there are eight groups of glue clamping positions 2 on both sides of each group of support part and pin part, and the encapsulation plastic 16 wraps the inner end of the support part and the pin part, and the function of the glue clamping position 2 is to avoid the overflow of the glue material to form the burr. As Figure 3 shown, in the pin cutting stage, the cutting area 4 on the support unit 1 needs to be punched and cut to remove, so that the first pin part 14 and the second pin part 15 are separated from the frame 11, and finally the pin is bent to form the final product. On a whole plate metal sheet, there are multiple groups of support units 1, therefore, in the injection stage, if there is a glue clamping position 2 with burr in the eight groups of glue clamping positions 2, the whole plate needs to be scrapped, which causes great waste, and no matter whether the plastic burr or the metal burr appears, the mold needs to be repaired, so that the mold is repaired frequently, which causes adverse effects on the production efficiency.
[0023] As Figures 4 to 7As shown, this design proposes a simplified LED support structure, comprising a metal sheet with multiple support units 1 evenly distributed on it. Each support unit 1 includes an integrally formed frame 11, a first support portion 12, a second support portion 13, a first lead portion 14, and a second lead portion 15. Each support unit 1 also includes encapsulating plastic 16. The frame 11 has a through hole 111 in the middle, and the encapsulating plastic 16 is disposed within the through hole 111. The outer side of the first support portion 12 is connected to the frame 11, and the inner side is fixed to the encapsulating plastic 16. Inside the left end, the outer side of the second support portion 13 is connected to the frame 11 and the inner side is fixed inside the right end of the encapsulation plastic 16. The outer side of the first pin portion 14 is connected to the frame 11 and the inner side is fixed inside the encapsulation plastic 16. The outer side of the first pin is connected to the outer side of the first support portion 12 and a first overflow groove 17 is formed between them. The first overflow groove 17 protrudes from the outer side of the encapsulation plastic 16. The outer side of the second pin portion 15 is connected to the outer side of the second support portion 13 and a second overflow groove 18 is formed between them. The second overflow groove 18 protrudes from the outer side of the encapsulation plastic 16.
[0024] like Figure 4 As shown, during the stamping stage, the first pin portion 14 and the second pin portion 15 are not stamped into the final pin outline. At this time, the pin portion and the support portion are connected, forming an overflow groove between adjacent pin portions and the support portion. Figure 5 As shown, during the injection molding stage, the overflow groove protrudes beyond the outer side of the encapsulated plastic 16. No mold core 3 is needed within the overflow groove. During injection molding, the adhesive overflows into the first overflow groove 17 and the second overflow groove 18, while the number of retaining positions 2 on the support and pin portions is sharply reduced from eight to four. For example... Figures 6 to 7 As shown, in the lead-cutting stage, not only is the connection between the lead and the frame 11 cut off, but the connection between the lead and the support is also cut off, so that the lead forms the final outline. Finally, the lead is bent to form the final product. Although there will be plastic burrs in the overflow groove, by setting the length of the overflow groove to protrude beyond the encapsulated plastic 16, the plastic burrs can be limited to the range required by the product, and the product can be used as a qualified product. In a single bracket unit 1, the number of sets of glue-holding positions 2 in the prior art is sharply reduced to four sets of glue-holding positions 2, that is, the glue-holding positions 2 of the whole sheet metal are reduced by half, thereby reducing the abnormal rate of the fit between the glue-holding positions 2 and the mold core 3 by more than half, and improving production efficiency. The complexity of the mold core structure is also reduced, reducing the cost and time of mold processing and maintenance. At the same time, in the demolding stage after injection molding, since the support and lead are still in the connected state, the overall strength of the metal sheet is higher and it is easier to demold.
[0025] The first overflow groove 17 protrudes from the length of the packaging plastic 16 by 0.01mm to 0.2mm, and the second overflow groove 18 protrudes from the length of the packaging plastic 16 by 0.01mm to 0.2mm. The length of the overflow groove protruding from the packaging plastic 16 should not be too large, otherwise the plastic edge will be too obvious, which is difficult to meet the processing requirements of the product. At the same time, the length of the overflow groove protruding from the packaging plastic 16 should not be too small, otherwise there will be too little cooperation allowance for the cutter at the cutting stage, and the cutter is easy to cut and damage the packaging plastic 16.
[0026] In the design, the first pin part 14 and the second pin part 15 can be respectively provided with a group, and the first pin part 14 and the second pin part 15 correspond to the same side of the packaging plastic 16. In the injection molding stage, a group of support parts are connected with a group of pin parts. Of course, it can also be provided that the first pin part 14 is provided with two groups and corresponds to the front and back sides of the packaging plastic 16, and the second pin part 15 is provided with two groups and corresponds to the front and back sides of the packaging plastic 16. In this way, the front and back sides of a group of support parts are respectively connected with a group of pin parts, and the structure of the original twelve groups of glue clamping positions 2 is improved to only four groups of glue clamping positions 2.
[0027] The above is not any limitation on the technical range of the utility model, and any modification, equivalent change and modification of the above embodiments according to the technical essence of the utility model still belong to the range of the technical scheme of the utility model.
Claims
1. A simplified LED holder, characterized by: The metal sheet comprises a plurality of groups of support units uniformly arranged thereon, each group of the support units comprising a frame, a first support part, a second support part, a first pin part and a second pin part arranged integrally, a through hole being arranged in the middle of the frame, a packaging plastic being arranged in the through hole, the outer side of the first support part being connected with the frame and the inner side being fixed in the left end of the packaging plastic, the outer side of the second support part being connected with the frame and the inner side being fixed in the right end of the packaging plastic, the outer side of the first pin part being connected with the frame and the inner side being fixed in the packaging plastic, the outer side of the first pin being connected with the outer side of the first support part and a first overflow groove being formed therebetween, the first overflow groove protruding from the outer side of the packaging plastic, the outer side of the second pin part being connected with the outer side of the second support part and a second overflow groove being formed therebetween, the second overflow groove protruding from the outer side of the packaging plastic.
2. A simplified LED holder according to claim 1, characterized in that: The length of the first overflow groove protruding from the packaging plastic is 0.01mm to 0.2mm, and the length of the second overflow groove protruding from the packaging plastic is 0.01mm to 0.2mm.
3. A simplified LED holder according to claim 1, characterized in that: The first pin part and the second pin part correspond to the same side of the packaging plastic.
4. The simplified LED holder of claim 1, wherein: The first pin part is arranged in two groups and corresponds to the front and back sides of the packaging plastic respectively, and the second pin part is arranged in two groups and corresponds to the front and back sides of the packaging plastic respectively.