LED lamp bead and LED bulb
By designing the bent first and second pins in the LED lamp beads to form the installation platform, the problem of unstable welding of the LED light emitting body is solved, reliability and stability are improved, and better light uniformity is achieved.
Patent Information
- Application Number
- CN202422625637.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-10-30
AI Technical Summary
The reliability of the LED light emitting body directly soldered to the top of the pin in existing LED lamp beads is not high, resulting in insufficient reliability for long-term use.
The first pin and the second pin are bent respectively to form the installation platform, and the LED light emitting body is fixed to the platform and welded to the bent section, and the package body is packaged and welded to ensure sufficient contact length and electrical insulation performance.
It improves the welding reliability of LED light emitting body and pins, enhances the long-term stability and service life of LED lamp beads, and achieves a more uniform light distribution.
Smart Images

Figure CN223286158U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a lighting device, in particular to an LED lamp bead and an LED bulb. Background Art
[0002] In the past, light bulbs used tungsten filaments as light sources. With the advancement of technology, LEDs have gradually replaced them.
[0003] For example, prior art CN213746184U discloses an LED glass Christmas bulb that uses an LED lamp as the light source. Specifically, it includes a plug-in LED lamp and a glass cover that fits over the plug-in LED lamp. The plug-in LED lamp and the glass cover are integrally constructed, with the lamp beads of the plug-in LED lamp located within the glass cover. A light-transmitting space is defined between the lamp beads and the inner cavity of the glass cover, and the pins of the plug-in LED lamp protrude from the bottom end of the glass cover. A plug-in LED lamp includes a package body, a positive lead, a negative lead, an LED holder encapsulated within the package body, and an LED chip. The LED chip is soldered to the LED holder. Four groups of outwardly concave lenses and one group of planar lenses are disposed within the package body and above the LED holder. The four groups of concave lenses are separated and positioned around the planar lenses, and are positioned on quadrants of the planar lenses. Their edges are tangent to the planar lenses and the inner wall of the package body, respectively. The package body is located within a glass cover. The positive and negative leads are connected to the circuitry of the LED holder, and both the positive and negative leads protrude beyond the bottom end of the glass cover. In the above-mentioned prior art, the LED chip is soldered to the LED holder at the top end of the negative lead, supported by only one lead. To ensure reliable fixation of the LED chip, the LED holder requires a sufficiently large area to accommodate the LED chip, resulting in a larger top portion. This not only reduces aesthetics but also increases the size of the LED lamp bead, reducing the gap between the LED lamp bead and the inner wall of the glass cover, making it difficult to install the LED lamp bead into the glass cover. The LEDs of the prior art CN202695531U, CN205353994U, CN202613105U, and CN109713111A all adopt the above-mentioned fixing solution, and the positive electrode of the LED is electrically connected to the positive pin through a wire, which not only increases the processing difficulty, but also has a large number of solder joints and low reliability in long-term use.
[0004] To overcome the above-mentioned problems, the prior art CN220749961U, CN221348909U, CN109192837A, and CN212392260U all propose directly soldering an LED lamp to the tops of two pins. For example, CN221348909U discloses a light source device comprising a transparent protective cover, an LED assembly, and a refractive lens. The transparent protective cover has a housing cavity with one end open; the LED assembly is disposed within the housing cavity and is configured to emit light; the refractive lens cover is disposed on or wrapped around the LED assembly, the side of the refractive lens close to the LED assembly being the incident surface, and the side of the refractive lens facing away from the LED assembly being the emitting surface, which is configured to refract light passing through the emitting surface. The LED assembly comprises an LED chip, a first conductive column, and a second conductive column, the first and second conductive columns being spaced apart; and the LED chip is electrically connected to the first and second conductive columns. The first conductive column and / or the second conductive column include a connecting portion and a conducting portion, which are sequentially connected; the connecting portion is located within the transparent protective cover, and the conducting portion extends out of the transparent protective cover; a carrier is provided at one end of the connecting portion away from the conducting portion; and the LED chip is bonded to the carrier. However, the above-mentioned prior art all suffer from the same problem: the pins are relatively thin, generally with a diameter of around 0.2mm. To ensure contact area with the LED light source and improve the reliability of LED soldering and fixation, the top ends of the pins need to be widened, such as to form the above-mentioned carrier structure. However, this has limited effect on improving reliability during long-term use. Utility Model Content
[0005] The purpose of the present invention is to provide an LED lamp bead to solve the problem of low reliability when the LED light-emitting body is directly welded and fixed to the top of the pin, improve the reliability of the welding and fixing of the LED light-emitting body and the pin, and greatly improve the reliability of the LED lamp bead in long-term use.
[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: an LED lamp bead, comprising a first pin, a second pin, an LED light-emitting body and a packaging body, the first pin comprising a first base extending basically along a first direction and a first bent section bent relative to the first base, the first bent section being located at the top end of the first base, the second pin comprising a second base extending basically along the first direction and a second bent section bent relative to the second base, the second bent section being located at the top end of the second base, the first bent section and the second bent section being basically located on a first plane to form a mounting platform, the first plane being basically perpendicular to the first direction, the first bent section and the second bent section being separated and the extension directions being staggered with each other, the LED light-emitting body being fixed to the mounting platform and being respectively welded to the first bent section and the second bent section to achieve electrical connection, the packaging body encapsulates the LED light-emitting body and the welding points between the LED light-emitting body and the first bent section and the second bent section.
[0007] After adopting the above technical solution, the utility model has the following advantages: by bending the first pin and the second pin respectively to form a first bending section and a second bending section of sufficient length, the first bending section and the second bending section are basically located on the first plane to form an installation platform, which can stably support the LED light-emitting body before welding, which not only facilitates the positioning welding of the LED light-emitting body and is beneficial to the automated production of LED lamp beads, but also because the contact length between the first bending section, the second bending section and the LED light-emitting body is large enough, the reliability of the welding and fixing of the LED light-emitting body to the first pin and the second pin can be improved, thereby greatly improving the reliability of the long-term use of the LED lamp beads. The separation between the first and second bend sections allows for reliable electrical insulation performance. The first and second bend sections extend in different directions, that is, they extend in different directions, which may intersect or be opposite. This allows the stresses generated by welding the LED light-emitting element to the first and second bend sections to at least partially offset each other. The first and second bend sections form a cantilever structure, providing a certain elastic support effect. The stresses generated by welding the LED light-emitting element to the first and second bend sections can be directly absorbed and consumed by the first and second bend sections, thereby improving the long-term stability of the welded structure of the LED light-emitting element and increasing the service life of the LED lamp beads. Since the first plane is substantially perpendicular to the first direction, light is emitted 360° circumferentially from the LED chip, covering a region close to a hemispherical area, providing uniform light and better lighting effects at the same power. The encapsulation body encapsulates the LED light-emitting body and the welding points between the LED light-emitting body and the first bending section and the second bending section, which can not only guide the light to be emitted evenly, but also further improve the reliability of the welding fixation between the LED light-emitting body and the first pin and the second pin.
[0008] Furthermore, the first pin also includes a first inclined section, which is connected between the first base and the first bending section, and the angle between the first inclined section and the first bending section is an acute angle. The second pin also includes a second inclined section, which is connected between the second base and the second bending section, and the angle between the second inclined section and the second bending section is an acute angle.
[0009] Furthermore, the first bending section and the second bending section extend in opposite directions.
[0010] Furthermore, the first bending section extends along a first straight line, the second bending section extends along a second straight line, and the first straight line and the second straight line intersect.
[0011] Furthermore, the first bending section extends along a curve; and / or the second bending section extends along a curve.
[0012] Furthermore, the length of the first bending section is not less than the width of the LED light-emitting body; and / or the length of the second bending section is not less than the width of the LED light-emitting body.
[0013] Furthermore, the LED light-emitting body includes a substrate, the back of the substrate has a positive electrode welding surface and a negative electrode welding surface, the positive electrode welding surface and the negative electrode welding surface are separated by an insulating gap, the first bending section is welded and fixed to the positive electrode welding surface, and the second bending section is welded and fixed to the negative electrode welding surface.
[0014] Furthermore, the top surface of the package body is a spherical structure.
[0015] Furthermore, the LED lamp bead is a white light source, the LED light-emitting body is a white light-emitting LED, and the packaging body is a transparent colorless glue; or, the LED lamp bead is a colored light source, the LED light-emitting body is a colored light-emitting LED and the packaging body is a transparent colorless glue, or the LED light-emitting body is a white light-emitting LED and the packaging body is a transparent colored glue.
[0016] The utility model also provides an LED light bulb, comprising a lampshade and an LED lamp bead, wherein the LED lamp bead is the LED lamp bead in any of the above technical solutions, and the LED lamp bead is encapsulated in the lampshade, and a first pin and a second pin extend from the bottom end of the lampshade.
[0017] By adopting the above technical solution, the reliability of the welding and fixing of the LED light-emitting body to the first pin and the second pin is improved, and the long-term use reliability of the LED lamp bead is greatly improved, thereby improving the long-term use reliability of the LED bulb. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The present invention will be further described below with reference to the accompanying drawings:
[0019] Figure 1 This is a schematic diagram of an LED lamp bead in Example 1 of the present utility model;
[0020] Figure 2 This is a schematic diagram of an LED lamp bead in Example 1 of the present utility model (the welding points between the LED light-emitting body and the first bending section and the second bending section are not encapsulated);
[0021] Figure 3 Schematic diagram (1) of the connection between the LED light-emitting body and the first pin and the second pin in the first embodiment of the present utility model;
[0022] Figure 4 This is a schematic diagram (2) of the connection between the LED light-emitting body and the first pin and the second pin in the first embodiment of the present utility model;
[0023] Figure 5 Schematic diagram (1) of the first bending section and the second bending section on the back of the LED light-emitting body in Example 1 of the present utility model;
[0024] Figure 6 Schematic diagram (2) of the first bending section and the second bending section on the back of the LED light-emitting body in Example 1 of the present utility model;
[0025] Figure 7 Schematic diagram (3) of the first bending section and the second bending section on the back of the LED light-emitting body in Example 1 of the present utility model;
[0026] Figure 8 Schematic diagram (four) of the first bending section and the second bending section on the back of the LED light-emitting body in the first embodiment of the present utility model;
[0027] Figure 9 Schematic diagram (5) of the first bending section and the second bending section on the back of the LED light-emitting body in Example 1 of the present utility model;
[0028] Figure 10 Schematic diagram (six) of the first bending section and the second bending section on the back of the LED light-emitting body in Example 1 of the present utility model;
[0029] Figure 11 Schematic diagram (VII) of the first bending section and the second bending section on the back of the LED light-emitting body in Example 1 of the present utility model;
[0030] Figure 12 Schematic diagram (eight) of the first bending section and the second bending section on the back of the LED light-emitting body in Example 1 of the present utility model;
[0031] Figure 13 This is a schematic diagram of an LED bulb in Example 2 of the present utility model. DETAILED DESCRIPTION
[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.
[0033] In the specification and claims of this utility model, the terms "first," "second," and so on (if any) are used to distinguish similar items, not to describe a specific order or precedence. Even if "second" is used before a technical feature to distinguish it, it does not necessarily imply the presence of "first." It should be understood that in this utility model, "including," "having," and any variations thereof are intended to cover non-exclusive inclusions. It should be understood that in this utility model, "plurality" refers to two or more items. "And / or" is merely a description of an association between related items, indicating that three possible relationships exist. For example, "X and / or Y" can mean: X exists alone, X and Y exist simultaneously, or Y exists alone. The character " / " generally indicates that the related items are in an "or" relationship. "Including X, Y, and Z" means that all three of X, Y, and Z are included. "Including X, Y, or Z" means that any one of X, Y, or Z is included. "Including X, Y, and / or Z" means that any one, any two, or any three of X, Y, and Z are included.
[0034] The following specific embodiments are used to describe the technical solution of the present invention in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.
[0035] Example 1: Figure 1 、 Figure 2 and Figure 3As shown, the utility model provides an LED lamp bead, including a first pin 100, a second pin 200, an LED light-emitting body 300 and a package body 400, the first pin 100 includes a first base 11 extending substantially along a first direction and a first bending section 12 bent relative to the first base 11, the first bending section 12 is located at the top of the first base 11, the second pin 200 includes a second base 21 extending substantially along the first direction and a second bending section 22 bent relative to the second base 21, the second bending section 22 is located at the second base 21, the first bending section 12 and the second bending section 22 are basically located on the first plane M1 to form a mounting platform, the first plane M1 is basically perpendicular to the first direction, the first bending section 12 and the second bending section 22 are separated and the extension directions are staggered from each other, the LED light-emitting body 300 is fixed on the mounting platform and is respectively welded to the first bending section 12 and the second bending section 22 to achieve electrical connection, and the packaging body 400 encapsulates the LED light-emitting body 300 and the welding points between the LED light-emitting body 300 and the first bending section 12 and the second bending section 22.
[0036] The utility model forms a first bending section 12 and a second bending section 22 of sufficient length by bending the first pin 100 and the second pin 200 respectively, and forms a mounting platform by using the first bending section 12 and the second bending section 22 basically on the first plane M1, which can stably support the LED light-emitting body 300 before welding, not only facilitating the positioning welding of the LED light-emitting body 300 and facilitating the automated production of LED lamp beads, but also because the contact length between the first bending section 12, the second bending section 22 and the LED light-emitting body 300 is large enough, it can improve the reliability of the welding and fixing of the LED light-emitting body 300 and the first pin 100 and the second pin 200, thereby greatly improving the reliability of the long-term use of the LED lamp beads. The separation between the first bending section 12 and the second bending section 22 can obtain reliable electrical insulation performance. The extension directions of the first bending section 12 and the second bending section 22 are staggered, that is, the extension directions of the first bending section 12 and the second bending section 22 are different, and can be intersecting or opposite, so that the stress generated after the LED illuminant 300 is welded and fixed to the first bending section 12 and the second bending section 22 can at least offset each other in part after acting on the LED illuminant 300, and the first bending section 12 and the second bending section 22 form a cantilever structure with a certain elastic support effect. The stress generated after the LED illuminant 300 is welded and fixed to the first bending section 12 and the second bending section 22 can be directly absorbed and consumed by the first bending section 12 and the second bending section 22 after acting on the first bending section 12 and the second bending section 22. Therefore, it is beneficial to improve the long-term stability of the structure after the LED illuminant 300 is welded and fixed, and is beneficial to improving the service life of the LED lamp beads. Because the first plane M1 is substantially perpendicular to the first direction, light is emitted 360° circumferentially centered on the LED chip, covering a nearly hemispherical area. This provides uniform light and a better luminous effect at equivalent power. The encapsulation body 400 encapsulates the LED luminaire 300 and the welds between the LED luminaire 300 and the first and second bent sections 12 and 22. This not only guides the light emission evenly but also further improves the reliability of the welded connection between the LED luminaire 300 and the first and second pins 100 and 200.
[0037] The first and second pins 100 and 200 can be made of common metal wire, such as Dumet wire. Because its thermal expansion coefficient is close to that of glass, it is very suitable for products where LED lamp beads are encapsulated in glass lampshades. If lampshade encapsulation is not a consideration or plastic lampshade encapsulation is used, common copper, copper alloys, iron alloys, etc. can also be used. To improve the conductivity and corrosion resistance of the first and second pins 100 and 200, the first and second pins 100 and 200 can be surface-treated with metal materials such as silver and nickel. The package body 400 can be made of common transparent encapsulating colloids such as epoxy resin or UV glue, which have good moisture-proof and insulating properties. The LED luminaire 300 can use a surface-mount LED, which generally includes an LED chip 31 and a substrate 32. The LED chip 31 and substrate 32 are integrated into one body, with the LED chip 31 located on the front surface of the substrate 32. The back surface of the substrate 32 has a positive electrode welding surface 321 and a negative electrode welding surface 322. The positive electrode welding surface 321 and the negative electrode welding surface 322 are separated by an insulating gap 323. The first bent section 12 is welded to the positive electrode welding surface 321, and the second bent section 22 is welded to the negative electrode welding surface 322. The LED luminaire 300 can also use a non-polarized LED, without distinguishing between positive and negative poles. The two welding surfaces can be welded to the first bent section 12 and the second bent section 22, respectively.
[0038] The first base 11 and the second base 21 extend substantially along the first direction, that is, the first base 11 and the second base 21 can be parallel to each other or can be inclined at a certain angle relative to each other. The first bent section 12 and the second bent section 22 are substantially located on the first plane M1, which means that both can extend on the first plane M1 or can be inclined at a small angle relative to the first plane M1 to enable the LED light-emitting body 300 to be positioned flatly for subsequent welding and fixation. The first plane M1 is substantially perpendicular to the first direction, which means that the first plane M1 can be perpendicular to the first direction or can be inclined at a small angle relative to the first direction to maximize the 360° lighting effect toward the top.
[0039] In one embodiment, Figure 5As shown, after the first bending section 12 is bent directly relative to the first base 11, the first base 11 will be offset relative to the first bending section 12, and the position of the welding point on the back of the LED light-emitting body 300 is fixed. The first bending section 12 is fixedly connected to the LED light-emitting body 300, and the welding point of the LED light-emitting body 300 will be positioned as far as possible in the middle position of the first bending section 12, resulting in the first base 11 being offset relative to the LED light-emitting body 300. The same situation also exists with the second pin 200, resulting in the spacing S between the first base 11 and the second base 21 being too large. When the encapsulation colloid is used to encapsulate the LED light-emitting body 300 and the welding points between the LED light-emitting body 300 and the first bending section 12 and the second bending section 22, the encapsulation colloid will flow along the first base 11 and the second base 21 under the action of tension, which is not conducive to the encapsulation colloid flowing to the central area on the back of the LED light-emitting body 300, resulting in poor encapsulation effect. Therefore, in order to avoid the aforementioned problem, it can be solved by reducing the spacing S between the first base 11 and the second base 21. Specific combination Figure 2 and Figure 4 In another embodiment, the first pin 100 can be designed to further include a first inclined section 13, which is connected between the first base 11 and the first bending section 12, and the angle between the first inclined section 13 and the first bending section 12 is an acute angle, and the second pin 200 can further include a second inclined section 23, which is connected between the second base 21 and the second bending section 22, and the angle between the second inclined section 23 and the second bending section 22 is an acute angle. The first inclined section 13 is extended from the first bending section 12 to the first base 11 in a direction close to the midpoint of the first bending section 12. Similarly, the second inclined section 23 is extended from the second bending section 22 to the second base 21 in a direction close to the midpoint of the second bending section 22. After the transition between the first inclined section 13 and the second inclined section 23, when viewed from a direction perpendicular to the first plane M1, the first base 11 can be relatively close to or located at the midpoint of the first bending section 12, and the second base 21 can be relatively close to or located at the midpoint of the second bending section 22. Figure 6 and Figure 5 It can be clearly seen that when the spacing between the first bending section 12 and the second bending section 22 is equal, the spacing S between the first substrate 11 and the second substrate 21 can be reduced. When encapsulating the LED light-emitting body 300, the encapsulating colloid flows along the first inclined section 13 and the second inclined section 23, and will adhere to each other and flow toward the central area on the back of the LED light-emitting body 300. This not only limits the encapsulating colloid from flowing a smaller distance along the first inclined section 13 and the second inclined section 23, but also makes it easier for the encapsulating colloid to cover the welding points between the LED light-emitting body 300 and the first bending section 12 and the second bending section 22, thereby obtaining a better encapsulation effect.
[0040] In one embodiment, the first bending section 12 and the second bending section 22 extend in opposite directions, that is, the first bending section 12 and the second bending section 22 are parallel to each other, which can form a flatter installation platform for pre-positioning the LED light-emitting body 300, which is beneficial for the subsequent welding and fixation of the LED light-emitting body 300, thereby obtaining a better welding effect. The first bending section 12 and the second bending section 22 extend in opposite directions, which can form a symmetrical structure relative to the center of the LED light-emitting body 300. The stress generated after the LED light-emitting body 300 is welded and fixed with the first bending section 12 and the second bending section 22 can largely offset each other after acting on the LED light-emitting body 300, thereby further improving the long-term stability of the structure after the LED light-emitting body 300 is welded and fixed, and improving the service life of the LED lamp beads. The first bending section 12 and the second bending section 22 can be arranged in various directions relative to the LED light-emitting body 300, for example, as shown in FIG. Figure 5 and Figure 6 As shown, the first bending section 12 and the second bending section 22 are parallel to the length direction of the insulating gap 323 (ie, the longitudinal direction in the figure), and can also be as shown in FIG. Figure 7 and Figure 8 As shown, the first bending section 12 and the second bending section 22 are inclined relative to the length direction of the insulating gap 323. If the width of the positive electrode welding surface 321 and the negative electrode welding surface 322 is large enough, the first bending section 12 and the second bending section 22 can also be perpendicular to the length direction of the insulating gap 323. At the same time, it is necessary to avoid the first bending section 12 and the second bending section 22 from entering the insulating gap 323 as much as possible. Figure 9 The figure shows a poor connection solution, which will substantially reduce the width of the insulation gap 323. At the same time, the first bending section 12 and the second bending section 22 are centered relative to the back of the LED light emitting body 300 in the length direction of the insulation gap 323. For example, Figure 10 The figure shows the situation where the first bending section 12 and the second bending section 22 are too offset. Not only the lengths of the first bending section 12 and the second bending section 22 are shortened, but also S becomes larger.
[0041] Furthermore, in order to obtain a more uniform lighting effect, the top surface of the package body 400 may be designed to be a spherical structure. It is understandable that other shapes may also be used when necessary.
[0042] Because liquid solder is first added to the first bend section 12 and the second bend section 22 before pre-positioning the LED luminous body 300, the LED luminous body 300 can be placed on the first bend section 12 and the second bend section 22 to improve the reliability of pre-positioning by utilizing the adsorption effect of the liquid solder, thereby facilitating subsequent soldering and fixing. Figure 11As shown, the first bending section 12 extends along the first straight line, the second bending section 22 extends along the second straight line, and the first straight line intersects the second straight line, which can also form a stable installation platform. In addition, the first bending section 12 can also be designed to extend along a curve, for example Figure 12 The first bending section 12 can be extended along an arc or a common curve such as a wave line, which can increase the contact length between the first bending section 12 and the LED light emitting body 300, thereby improving the pre-positioning and structural stability of the LED light emitting body 300 after welding. Similarly, the second bending section 22 can also be extended along a curve, for example Figure 12 The second bending section 22 can extend along an arc line or a common curve such as a wave line, thereby increasing the contact length between the second bending section 22 and the LED light-emitting body 300 and improving the structural stability of the LED light-emitting body 300 after pre-positioning and welding.
[0043] The color of the LED lamp beads can be customized according to customer needs. For example, if the LED lamp bead can emit white light, the LED lamp bead can be a white light source, the LED illuminator 300 can be a white light emitting LED, and the encapsulation 400 can be a transparent, colorless adhesive. For another example, if the LED lamp bead emits colored light, the LED illuminator 300 can be a colored LED and the encapsulation 400 can be a transparent, colorless adhesive. This allows the LED lamp bead 300 to directly emit colored light. Alternatively, the LED illuminator 300 can be a white light LED and the encapsulation 400 can be a transparent, colored adhesive. This allows the encapsulation 400 to be used to change the color of the light.
[0044] Example 2: Figure 13 As shown, the present invention also provides an LED bulb, comprising a lampshade 500 and an LED lamp bead. The LED lamp bead is any of the LED lamp bead described in the above embodiments. The LED lamp bead is encapsulated within the lampshade 500, and a first pin 100 and a second pin 200 extend from the rear end of the lampshade 500. The lampshade 500 can be made of a transparent or translucent material such as glass or plastic. This improves the reliability of the soldering connection between the LED light source and the first and second pins, greatly enhancing the long-term reliability of the LED lamp bead, thereby improving the long-term reliability of the LED bulb.
[0045] In addition to the above-mentioned preferred embodiments, the present invention has other implementation methods. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.
Claims
1. An LED lamp bead, comprising a first pin, a second pin, an LED light-emitting body and a package, characterized in that: The first pin includes a first base extending basically along the first direction and a first bent section bent relative to the first base, and the first bent section is located at the top end of the first base. The second pin includes a second base extending basically along the first direction and a second bent section bent relative to the second base, and the second bent section is located at the top end of the second base. The first bent section and the second bent section are basically on a first plane to form a mounting platform. The first plane is basically perpendicular to the first direction. The first bent section and the second bent section are separated and their extension directions are staggered with each other. The LED light-emitting body is fixed to the mounting platform and is respectively welded to the first bent section and the second bent section to achieve electrical connection. The encapsulation body encapsulates the LED light-emitting body and the welding points between the LED light-emitting body and the first bent section and the second bent section.
2. The LED lamp bead according to claim 1, characterized in that: The first pin also includes a first inclined section, which is connected between the first base and the first bending section, and the angle between the first inclined section and the first bending section is an acute angle. The second pin also includes a second inclined section, which is connected between the second base and the second bending section, and the angle between the second inclined section and the second bending section is an acute angle.
3. The LED lamp bead according to claim 1, characterized in that: The first bending section and the second bending section extend in opposite directions.
4. The LED lamp bead according to claim 1, characterized in that: The first bending section extends along a first straight line, the second bending section extends along a second straight line, and the first straight line intersects the second straight line.
5. The LED lamp bead according to claim 1, characterized in that: The first bending section extends along a curve; and / or the second bending section extends along a curve.
6. The LED lamp bead according to claim 1, characterized in that: The length of the first bending section is not less than the width of the LED light-emitting body; and / or the length of the second bending section is not less than the width of the LED light-emitting body.
7. The LED lamp bead according to claim 1, characterized in that: The LED illuminator includes a substrate, the back of the substrate has a positive electrode welding surface and a negative electrode welding surface, the positive electrode welding surface and the negative electrode welding surface are separated by an insulating gap, the first bending section is welded and fixed to the positive electrode welding surface, and the second bending section is welded and fixed to the negative electrode welding surface.
8. The LED lamp bead according to claim 1, characterized in that: The top surface of the package body is a spherical structure.
9. The LED lamp bead according to claim 1, characterized in that: The LED lamp bead is a white light source, the LED illuminant is a white light emitting LED, and the encapsulation body is a transparent colorless glue; or the LED lamp bead is a colored light source, the LED illuminant is a colored light emitting LED and the encapsulation body is a transparent colorless glue, or the LED illuminant is a white light emitting LED and the encapsulation body is a transparent colored glue.
10. An LED bulb, comprising a lampshade and LED lamp beads, characterized in that: The LED lamp bead is the LED lamp bead described in any one of claims 1-9, the LED lamp bead is encapsulated in a lampshade, and the first pin and the second pin extend from the bottom end of the lampshade.
Citation Information
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