Anti-permeability bracket and LED packaging structure

Abstract

This utility model discloses an anti-permeability bracket and LED packaging structure, belonging to the field of LED technology. It includes a first electrode block and a second electrode block that are electrically insulated from each other, and a plastic portion. The first electrode block has a first upper surface and a first lower surface opposite to the first upper surface. The first electrode block includes at least a first fence portion, which is disposed around the outer edge of the first upper surface and protrudes from the first upper surface in a direction opposite to the first lower surface. The second electrode block has a second upper surface and a second lower surface opposite to the second upper surface. The second electrode block includes at least a second fence portion, which is disposed around the outer edge of the second upper surface and protrudes from the second upper surface in a direction opposite to the second lower surface. The plastic portion covers at least a portion of the outer edges of the first electrode block and the second electrode block respectively. This utility model achieves the technical effect of improving sealing performance and extending product life.

Description

Technical Field

[0001] This utility model belongs to the field of LED technology, and specifically relates to an anti-permeability bracket and LED packaging structure. Background Technology

[0002] Preventing liquid penetration during LED packaging is a critical technology affecting product reliability and lifespan. In existing technologies, the anti-penetration structure of LED brackets typically employs a planar design, such as widening steps to extend the liquid penetration path or adding anti-penetration lines to the copper surface to reduce the penetration rate. However, relying on extending the penetration path cannot completely block liquid penetration; liquid can still seep in along the bonding interface, leading to internal electrical short circuits or material corrosion, reducing sealing performance and structural stability, and ultimately impacting product lifespan.

[0003] Therefore, it is necessary to provide a new technical solution to solve the above-mentioned technical problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is the problem of poor sealing performance and reduced product life.

[0005] To solve the above-mentioned technical problems, this utility model provides an anti-permeability support, which includes a first electrode block and a second electrode block that are electrically insulated from each other, and a plastic part. The first electrode block has a first upper surface and a first lower surface opposite to the first upper surface. The first electrode block includes at least a first fence portion, which is disposed around the outer edge of the first upper surface and protrudes from the first upper surface in a direction opposite to the first lower surface. The second electrode block has a second upper surface and a second lower surface opposite to the second upper surface. The second electrode block includes at least a second fence portion, which is disposed around the outer edge of the second upper surface and protrudes from the second upper surface in a direction opposite to the second lower surface. The plastic part covers at least a portion of the outer edges of the first electrode block and the second electrode block, and respectively covers the first fence portion and the second fence portion.

[0006] Optionally, the first electrode block further includes a first recess, which is disposed near the outer edge of the first lower surface and is recessed from the first lower surface toward the first upper surface; the second electrode block further includes a second recess, which is disposed near the outer edge of the second lower surface and is recessed from the second lower surface toward the second upper surface; wherein the plastic portion is embedded in the first recess and the second recess respectively.

[0007] Optionally, there are multiple first fence portions, which are arranged at intervals; there are multiple first recesses, which are arranged at intervals; and the first fence portions and the first recesses are arranged in a one-to-one correspondence. There are multiple second fence portions, which are arranged at intervals; there are multiple second recesses, which are arranged at intervals; and the second fence portions and the second recesses are arranged in a one-to-one correspondence.

[0008] Optionally, the first recess is directly opposite the first fence portion, and the second recess is directly opposite the second fence portion.

[0009] Optionally, the first fence portion includes a first fence section and a second fence section integrally formed with the first fence section; the second fence portion includes a third fence section and a fourth fence section integrally formed with the third fence section.

[0010] Optionally, the second section of the fence tapers away from the first upper surface, and the fourth section of the fence tapers away from the second upper surface, with the fourth section of the fence close to the second section of the fence.

[0011] Optionally, the first section of the fence is columnar in the direction away from the first upper surface, and the second section of the fence is columnar in the direction away from the second upper surface.

[0012] Optionally, the height of the first fence portion protruding away from the first lower surface ranges from 0.03 mm to 0.1 mm; the height of the second fence portion protruding away from the second lower surface ranges from 0.03 mm to 0.1 mm.

[0013] Optionally, when viewed from a direction perpendicular to the first upper surface, the connection between the first fence portion and the first upper surface forms a closed, impermeable profile; when viewed from a direction perpendicular to the second upper surface, the connection between the second fence portion and the second upper surface forms a closed, impermeable profile.

[0014] According to another aspect of the present invention, the present invention also provides an LED packaging structure, the LED packaging structure including the aforementioned anti-penetration bracket, and further including an LED chip mounted on a first upper surface of the first electrode block and / or a second upper surface of the second electrode block, wherein the first electrode block and the second electrode block are electrically connected to the LED chip respectively via wires.

[0015] Beneficial effects:

[0016] This utility model provides an anti-permeability support, wherein a first electrode block and a second electrode block are electrically insulated from each other. The first lower surface and the first upper surface of the first electrode block are opposite to each other. A first fence portion of the first electrode block is arranged around the outer edge of the first upper surface and protrudes from the first upper surface in a direction away from the first lower surface. The second lower surface and the second upper surface of the second electrode block are opposite to each other. A second fence portion of the second electrode block is arranged around the outer edge of the second upper surface and protrudes from the second upper surface in a direction away from the second lower surface. A plastic portion covers at least a portion of the outer edges of the first electrode block and the second electrode block respectively, and covers the first fence portion and the second fence portion respectively. In this way, the first enclosure portion forms a continuous raised barrier on the outer edge of the first upper surface of the first electrode block, and the second enclosure portion forms a continuous raised barrier on the outer edge of the second upper surface of the second electrode block. Simultaneously, the plastic portion, by respectively covering the raised barriers on the first and second upper surfaces, creates a continuous, interlocking sealing interface between the outer edges of the first and second electrode blocks. Furthermore, the raised structures of the raised barriers on the first and second upper surfaces rigidly bond with the plastic portion. This helps reduce sealing failures caused by thermal expansion and contraction or mechanical vibration, and increases the contact area and bonding force between the plastic portion and the first and second electrode blocks, effectively blocking external liquid penetration paths. This achieves the technical effect of improving sealing performance and extending product lifespan. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of an anti-permeability support provided in an embodiment of the present utility model.

[0019] Figure 2 for Figure 1 Top view.

[0020] Figure 3 for Figure 2 Sectional view at AA.

[0021] Figure 4 for Figure 2 Sectional view at BB.

[0022] Figure 5 This is a schematic diagram of the plastic part in an anti-permeability support provided for an embodiment of the present utility model.

[0023] Figure 6 This is a schematic diagram of the structure of the first electrode block in an anti-permeability support provided in an embodiment of the present invention.

[0024] Figure 7 This is a schematic diagram of the structure of the second electrode block in an anti-permeability support provided in an embodiment of the present invention.

[0025] Figure 8 This is a schematic diagram of the structure of the first and second fence sections in an anti-permeability support provided for an embodiment of the present utility model.

[0026] The meanings of the labels in the attached diagram are as follows:

[0027] 1—First electrode block, 11—First upper surface, 12—First lower surface, 13—First fence section, 131—First fence section, 132—Second fence section, 14—First recessed part, 2—Second electrode block, 21—Second upper surface, 22—Second lower surface, 23—Second fence section, 231—Third fence section, 232—Fourth fence section, 24—Second recessed part, 3—Plastic part, 4—Liquid. Detailed Implementation

[0028] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0029] To enable those skilled in the art to better understand the solutions of this application, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] In the embodiments of this application, "at least one" refers to one or more; "multiple" refers to two or more. In the description of this application, the terms "first," "second," "third," etc., are used only for the purpose of distinguishing descriptions and should not be construed as indicating or implying relative importance, nor should they be construed as indicating or implying order.

[0031] In this specification, references such as "one embodiment" or "some embodiments" mean that one or more embodiments of this application include the specific features, structures, or characteristics described in connection with that embodiment. Therefore, the terms "comprising," "including," "having," and variations thereof in this specification all mean "including but not limited to," unless otherwise specifically emphasized. It should be noted that in the embodiments of this application, "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone.

[0032] It should be noted that, in the embodiments of this utility model, when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intervening component. Furthermore, in the embodiments of this application, "connection" can also be understood as an electrical connection; the connection between two electrical components can be a direct or indirect connection between the two electrical components. For example, the connection between A and B can be a direct connection between A and B, or an indirect connection between A and B through one or more other electrical components. The terms "vertical," "horizontal," "left," "right," and similar expressions used in the embodiments of this utility model are for illustrative purposes only and are not intended to limit the utility model.

[0033] This utility model provides an anti-permeability support according to Embodiment 1. Please refer to... Figures 1 to 8 As shown, Figure 1 This is a schematic diagram of the structure of an anti-permeability support provided in an embodiment of this utility model. Figure 2 yes Figure 1 Top view, Figure 3 yes Figure 2 Sectional view at AA Figure 4 yes Figure 2 Sectional view at BB Figure 5 This is a schematic diagram of the plastic part in an anti-permeability support provided by an embodiment of this utility model. Figure 6 This is a schematic diagram of the structure of the first electrode block in an anti-permeability support provided by an embodiment of this utility model. Figure 7 This is a schematic diagram of the structure of the second electrode block in an anti-permeability support provided by an embodiment of this utility model. Figure 8This is a schematic diagram of the structure of the first and second fence sections in an anti-permeability support provided by an embodiment of this utility model. An anti-permeability support provided in this embodiment of the utility model includes a first electrode block 1, a second electrode block 2, and a plastic part 3. The first electrode block 1 and the second electrode block 2 are electrically insulated from each other. The first electrode block 1 has a first upper surface 11 and a first lower surface 12, the first lower surface 12 being opposite to the first upper surface 11. The first electrode block 1 includes at least a first fence part 13, which is disposed around the outer edge of the first upper surface 11 and protrudes from the first upper surface 11 in a direction away from the first lower surface 12. The second electrode block 2 has a second upper surface 21 and a second lower surface 22, the second lower surface 22 being opposite to the second upper surface 21. The second electrode block 2 includes at least a second fence part 23, which is disposed around the outer edge of the second upper surface 21 and protrudes from the second upper surface 21 in a direction away from the second lower surface 22. The plastic part 3 covers at least a portion of the outer edges of the first electrode block 1 and the second electrode block 2, and covers the first fence part 13 and the second fence part 23, respectively.

[0034] The first electrode block 1 and the second electrode block 2 can refer to solder pads, and the first electrode block 1 and the second electrode block 2 can be made of copper. The plastic part 3 is made of insulating plastic material.

[0035] Among them, such as Figure 1 As shown, the outer edge of the first upper surface 11 can refer to the region of the first upper surface 11 that is far from the center of the first upper surface 11. The first fence portion 13 surrounds the outer edge of the first upper surface 11 in a closed loop shape to form a continuous raised barrier. The height direction of the first fence portion 13 is perpendicular to the first upper surface 11. The second fence portion 23 surrounds the outer edge of the second upper surface 21 in the same closed loop shape to form a continuous raised barrier.

[0036] The plastic part 3 can be molten and filled into the raised sidewalls and root areas of the first fence part 13 and the second fence part 23 through injection molding. After cooling and solidification, it forms a complete enclosure of the first fence part 13 and the second fence part 23, that is, it forms an uninterrupted interlocking sealing interface on the outer edge of the first electrode block 1 and the second electrode block 2, respectively, blocking the capillary permeation path of liquid 4 along the interface between the first electrode block 1, the second electrode block 2 and the plastic. At the same time, the first fence part 13 and the second fence part 23 can act as a rigid skeleton to inhibit the thermal shrinkage and deformation of the plastic part 3, and the liquid 4 may include red ink.

[0037] In this embodiment, the first electrode block 1 and the second electrode block 2 are electrically insulated from each other. The first lower surface 12 of the first electrode block 1 is opposite to the first upper surface 11. The first fence portion 13 of the first electrode block 1 is arranged around the outer edge of the first upper surface 11 and protrudes from the first upper surface 11 in a direction away from the first lower surface 12. The second lower surface 22 of the second electrode block 2 is opposite to the second upper surface 21. The second fence portion 23 of the second electrode block 2 is arranged around the outer edge of the second upper surface 21 and protrudes from the second upper surface 21 in a direction away from the second lower surface 22. The plastic portion 3 covers at least part of the outer edges of the first electrode block 1 and the second electrode block 2, and covers the first fence portion 13 and the second fence portion 23, respectively. In this way, the first enclosure portion 13 forms a continuous raised barrier on the outer edge of the first upper surface 11 of the first electrode block 1, and the second enclosure portion 23 forms a continuous raised barrier on the outer edge of the second upper surface 21 of the second electrode block 2. Simultaneously, the plastic portion 3, by respectively covering the raised barriers on the first upper surface 11 and the second upper surface 21, creates a continuous, interlocking sealing interface on the outer edges of the first electrode block 1 and the second electrode block 2. Furthermore, the raised structures of the raised barriers on the first upper surface 11 and the second upper surface 21 rigidly bond with the plastic portion 3, which helps reduce sealing failure caused by thermal expansion and contraction or mechanical vibration, and increases the contact area and bonding force between the plastic portion 3 and the first electrode block 1 and the second electrode block 2, respectively, thus blocking external liquid penetration paths. This achieves the technical effect of improving sealing performance and extending product lifespan.

[0038] In one embodiment, the first electrode block 1 further includes a first recess 14, which is disposed near the outer edge of the first lower surface 12 and is recessed from the first lower surface 12 toward the first upper surface 11. The second electrode block 2 further includes a second recess 24, which is disposed near the outer edge of the second lower surface 22 and is recessed from the second lower surface 22 toward the second upper surface 21. The plastic portion 3 is respectively embedded in the first recess 14 and the second recess 24. The first recess 14 and the second recess 24 can, together with the raised barriers of the first fence portion 13 and the second fence portion 23, respectively, form a bidirectional fitting seal between the upper and lower surfaces of the first electrode block 1 and the second electrode block 2.

[0039] In some embodiments, there are multiple first fence portions 13, which are arranged at intervals; there are multiple first recesses 14, which are arranged at intervals; the first fence portions 13 and the first recesses 14 are arranged in a one-to-one correspondence; there are multiple second fence portions 23, which are arranged at intervals; there are multiple second recesses 24, which are arranged at intervals; the second fence portions 23 and the second recesses 24 are arranged in a one-to-one correspondence. When there is one first fence section 13, there is also one first recessed section 14. In this case, one first recessed section 14 is aligned with one first fence section 13, that is, the recessed space of the first recessed section 14 can be located on the back of the first fence section 13, and the first recessed section 14 is recessed towards the inside of the first fence section 13. When there are two first fence sections 13, there are also two first recessed sections 14. In this case, two first recessed sections 14 are aligned with two first fence sections 13 respectively, that is, the recessed space of one first recessed section 14 can be located on the back of one first fence section 13, and the first recessed section 14 is recessed towards the inside of the first fence section 13. The recessed space of the other first recessed section 14 can be located on the back of the other first fence section 13, and the first recessed section 14 is recessed towards the inside of the first fence section 13.

[0040] By forming a distributed sealing unit with multiple first fence portions 13 and first recesses 14, and by forming a distributed sealing unit with multiple second fence portions 23 and second recesses 24, local failures do not affect the overall sealing performance.

[0041] In some embodiments, the first recess 14 faces the first fence portion 13, and the second recess 24 faces the second fence portion 23. The plastic portion 3 can form a continuous encapsulation with the first recess 14 through the protrusion of the first fence portion 13, and at the same time, it can also form a continuous encapsulation with the protrusion of the second fence portion 23 and the second recess 24, respectively establishing anti-permeability barriers on the first electrode block 1 and the second electrode block 2, blocking the permeation path of liquid 4.

[0042] In some embodiments, the first fence portion 13 includes a first fence section 131 and a second fence section 132, with the second fence section 132 integrally formed with the first fence section 131. The second fence portion 23 includes a third fence section 231 and a fourth fence section 232, with the fourth fence section 232 integrally formed with the third fence section 231. The first fence section 131 and the second fence section 132 are integrally formed to form the first fence portion 13, and the third fence section 231 and the fourth fence section 232 are integrally formed to form the second fence portion 23, thereby achieving a seamless connection between the first fence portion 13 and the second fence portion 23, eliminating welding or bonding interfaces, and ensuring that stress is evenly distributed in the first fence portion 13 and the second fence portion 23, with no weak connection points.

[0043] In some embodiments, the second section of the fence 132 has a tapered cross-section in the direction away from the first upper surface 11, as shown in the example cross-section. Figure 1 As shown, the cross section of the fourth section 232 facing away from the second upper surface 21 is tapered. The fourth section 232 is close to the second section 132. The tapered deformation of the second section 132 and the fourth section 232 can provide radial clamping force when the plastic part 3 is cooled, thereby enhancing the interfacial bonding strength. At the same time, the adjacent tapered sections of the second section 132 and the fourth section 232 can form a composite sealing channel, extending the penetration path of liquid such as liquid 4.

[0044] In some embodiments, the first section 131 has a columnar cross-section in the direction away from the first upper surface 11, and the second section 132 has a columnar cross-section in the direction away from the second upper surface 21. The columnar vertical sidewalls of the first section 131 and the second section 132 can increase the contact area of ​​the plastic part 3, and at the same time, as a rigid support frame, it is beneficial to maintain the morphological stability of the plastic part 3 in a vibration environment.

[0045] In some embodiments, the height of the first fence portion 13 protruding away from the first lower surface 12 ranges from 0.03 to 0.1 mm, and the height of the second fence portion 23 protruding away from the second lower surface 22 ranges from 0.03 to 0.1 mm. This facilitates the formation of an effective liquid penetration barrier, blocks the external liquid penetration path, and avoids air gaps during plastic wrapping. It also facilitates full contact between the protruding structures of the first fence portion 13 and the second fence portion 23 and the plastic portion 3.

[0046] In some embodiments, when viewed from a direction perpendicular to the first upper surface 11, the connection between the first fence portion 13 and the first upper surface 11 forms a closed anti-permeability profile, and when viewed from a direction perpendicular to the second upper surface 21, the connection between the second fence portion 23 and the second upper surface 21 forms a closed anti-permeability profile. The uninterrupted profile helps to prevent liquid from leaking circumferentially along the edges of the first electrode block 1 and the second electrode block 2, while also causing uniform shrinkage pressure to be generated when the plastic portion 3 is cured, thereby improving the interfacial bonding density.

[0047] In some embodiments, when viewed from a direction perpendicular to the first upper surface 11, the first fence segment 131 and the second fence segment 132 may also be arranged alternately, such as the first fence segment 131 and the second fence segment 132 being arranged opposite each other on both sides of the first upper surface 11. When viewed from a direction perpendicular to the second upper surface 21, the third fence segment 231 and the fourth fence segment 232 may also be arranged alternately, such as the third fence segment 231 and the fourth fence segment 232 being arranged opposite each other on both sides of the second upper surface 21.

[0048] To provide a detailed description of the LED packaging structure provided by this utility model, the above embodiment 1 provides a detailed description of an anti-permeability bracket. Based on the same inventive concept, this application also provides an LED packaging structure, as detailed in embodiment 2.

[0049] In some embodiments, a plastic part 3 made of insulating plastic material is used to cover and seal the first electrode block 1 and the second electrode block 2 respectively. That is, the plastic part 3 will cover at least part of the outer edges of the first electrode block 1 and the second electrode block 2 respectively. At the same time, a part of the plastic part 3 will completely wrap the first fence part 13 located on the first upper surface 11 of the first electrode block 1 and the second fence part 23 located on the second upper surface 21 of the second electrode block 2 respectively. Another part of the plastic part 3 will be embedded in the first recess 14 located on the first lower surface 12 of the first electrode block 1 and the second recess 24 located on the second lower surface 22 of the second electrode block 2 respectively. After cooling and curing, the entire plastic part 3 will form a sealing barrier that is embedded in the first recess 14 and the second recess 24, and forms a sealing barrier that is combined with the first fence part 13 on the first upper surface 11 of the first electrode block 1 and the second fence part 23 on the second upper surface 21 of the second electrode block 2.

[0050] This utility model embodiment 2 provides an LED packaging structure, including the aforementioned anti-permeability bracket, and further including an LED chip mounted on the first upper surface 11 of the first electrode block 1 and / or the second upper surface 21 of the second electrode block 2. The first electrode block 1 and the second electrode block 2 are electrically connected to the LED chip respectively through wires. The raised barriers of the first fence portion 13 and the second fence portion 23 can prevent external moisture from eroding the LED chip solder joints, which is beneficial to reducing the chip failure rate. At the same time, the continuous sealing interface of the plastic portion 3 can block liquid 4 from creeping along the wires, avoiding sulfidation corrosion of the LED light source and extending the product life.

[0051] This utility model provides an LED packaging structure, in which an LED chip is mounted on the first upper surface 11 of a first electrode block 1 and / or the second upper surface 21 of a second electrode block 2, and the first electrode block 1 and the second electrode block 2 are electrically connected to the LED chip by wires respectively. The first electrode block 1 and the second electrode block 2 are electrically insulated from each other. The first lower surface 12 of the first electrode block 1 is opposite to the first upper surface 11. A first fence portion 13 in the first electrode block 1 is arranged around the outer edge of the first upper surface 11 and protrudes from the first upper surface 11 in a direction away from the first lower surface 12. The second lower surface 22 of the second electrode block 2 is opposite to the second upper surface 21. A second fence portion 23 in the second electrode block 2 is arranged around the outer edge of the second upper surface 21 and protrudes from the second upper surface 21 in a direction away from the second lower surface 22. A plastic portion 3 covers at least part of the outer edges of the first electrode block 1 and the second electrode block 2 respectively, and covers the first fence portion 13 and the second fence portion 23 respectively. In this way, the first enclosure portion 13 forms a continuous raised barrier on the outer edge of the first upper surface 11 of the first electrode block 1, and the second enclosure portion 23 forms a continuous raised barrier on the outer edge of the second upper surface 21 of the second electrode block 2. Simultaneously, the plastic portion 3, by respectively covering the raised barriers on the first upper surface 11 and the second upper surface 21, creates a continuous, interlocking sealing interface on the outer edges of the first electrode block 1 and the second electrode block 2. Furthermore, the raised structures of the raised barriers on the first upper surface 11 and the second upper surface 21 rigidly bond with the plastic portion 3, which helps reduce sealing failure caused by thermal expansion and contraction or mechanical vibration, and increases the contact area and bonding force between the plastic portion 3 and the first electrode block 1 and the second electrode block 2, respectively, thus blocking external liquid penetration paths. This achieves the technical effect of improving sealing performance and extending product lifespan.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above embodiments only illustrate preferred implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An impervious support characterized in that, The anti-permeability support includes a first electrode block and a second electrode block that are electrically insulated from each other, and a plastic portion. The first electrode block has a first upper surface and a first lower surface opposite to the first upper surface. The first electrode block includes at least a first fence portion, which is disposed around the outer edge of the first upper surface and protrudes from the first upper surface in a direction opposite to the first lower surface. The second electrode block has a second upper surface and a second lower surface opposite to the second upper surface. The second electrode block includes at least a second fence portion, which is disposed around the outer edge of the second upper surface and protrudes from the second upper surface in a direction opposite to the second lower surface. The plastic portion covers at least a portion of the outer edges of the first electrode block and the second electrode block, and respectively covers the first fence portion and the second fence portion.

2. The containment support of claim 1, wherein The first electrode block further includes a first recess, which is disposed near the outer edge of the first lower surface and is recessed from the first lower surface toward the first upper surface; the second electrode block further includes a second recess, which is disposed near the outer edge of the second lower surface and is recessed from the second lower surface toward the second upper surface; wherein the plastic portion is embedded in the first recess and the second recess respectively.

3. The containment support of claim 2, wherein, The number of first fence parts is multiple, and the multiple first fence parts are arranged at intervals. The number of first recesses is multiple, and the multiple first recesses are arranged at intervals. The first fence parts and the first recesses are arranged in a one-to-one correspondence. The number of second fence parts is multiple, and the multiple second fence parts are arranged at intervals. The number of second recesses is multiple, and the multiple second recesses are arranged at intervals. The second fence parts and the second recesses are arranged in a one-to-one correspondence.

4. The containment support of claim 2, wherein, The first recessed portion is directly opposite the first fence portion, and the second recessed portion is directly opposite the second fence portion.

5. The containment support of claim 1, wherein The first fence section includes a first fence section and a second fence section integrally formed with the first fence section; the second fence section includes a third fence section and a fourth fence section integrally formed with the third fence section.

6. The containment support of claim 5, wherein, The second section of the fence tapers away from the first upper surface, and the fourth section of the fence tapers away from the second upper surface, with the fourth section of the fence close to the second section of the fence.

7. The containment support of claim 5, wherein, The first section of the fence is columnar in the direction away from the first upper surface, and the second section of the fence is columnar in the direction away from the second upper surface.

8. The containment support of claim 1, wherein, The height of the first fence portion protruding away from the first lower surface ranges from 0.03 mm to 0.1 mm; the height of the second fence portion protruding away from the second lower surface ranges from 0.03 mm to 0.1 mm.

9. The containment support of claim 1, wherein, The first fence part forms a closed impermeable profile with the first upper surface at the connection thereof, viewed in a direction perpendicular to the first upper surface; the second fence part forms a closed impermeable profile with the second upper surface at the connection thereof, viewed in a direction perpendicular to the second upper surface.

10. An LED package structure, characterized in that, The LED packaging structure comprises the impermeable support as claimed in any one of claims 1 to 9, further comprising an LED chip mounted on the first upper surface of the first electrode block and / or the second upper surface of the second electrode block, and the first electrode block and the second electrode block are electrically connected with the LED chip through wires, respectively.

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