LED glass bulb and LED lamp string

Abstract

The utility model discloses an LED glass bulb which comprises a glass cover body and an LED lamp wick assembly, the LED lamp wick assembly comprises an LED chip, a first conductive pin and a second conductive pin, the first conductive pin and the second conductive pin are arranged at an interval, the first conductive pin is connected with the LED chip through a first bent conductive sheet, and the second conductive pin is connected with the LED chip through a second bent conductive sheet. The second conductive pin is connected with the LED chip through a second bent conductive sheet; the first end of the glass cover body is a sealing connecting seat formed by sintering the glass cover body, the first conductive pin and the second conductive pin are embedded into and penetrate through the sealing connecting seat, and the LED chip, the first bent conductive sheet and the second bent conductive sheet are all arranged in the glass cover body. According to the utility model, the first bent conducting strip and the second bent conducting strip are arranged, so that the path length of high temperature transmitted to the LED chip through the first conducting pin, the first bent conducting strip, the second conducting pin and the second bent conducting strip when the first end of the glass cover body is sintered is prolonged, and heat is dissipated as much as possible in the heat transmission process; and the LED chip is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the field of lighting equipment, in particular to an LED glass bulb and an LED light string. Background Art

[0002] The manufacturing process of traditional tungsten filament lamps is to first place the tungsten filament in a hollow glass lampshade, and then sinter and seal the opening of the glass lampshade. The glass sintering and sealing process will form high temperature during the manufacturing process, but because the tungsten filament has good high temperature resistance, high temperature sintering will not affect the performance of the tungsten filament. Now, LED lamps are widely considered for energy saving and service life considerations, that is, considering using LED wicks to replace tungsten filaments to make LED glass bulbs. However, the high-temperature glass sintering and sealing process will damage the light-emitting chip of the LED wick, resulting in unstable quality of LED glass bulbs, low production yield, low production efficiency and high cost. If other structures are used to seal the opening of the glass lampshade, additional sealing parts need to be made, and the assembly process is increased, making the structure of the LED glass lamp complex and the production cost high. Therefore, there is an urgent need for a solution that can produce LED glass lamps in large quantities and efficiently to meet market demand. Summary of the invention

[0003] The purpose of the utility model is to provide an LED glass bulb and an LED light string, which have a reasonable structure so that the glass sintering and sealing process does not damage the LED wick, ensure product quality, thereby improving the yield rate, improving production efficiency and reducing costs.

[0004] In order to achieve the above-mentioned purpose, the utility model provides an LED glass bulb, comprising a glass cover and an LED wick assembly, wherein the LED wick assembly comprises an LED chip, a first conductive pin and a second conductive pin, the first conductive pin and the second conductive pin are arranged at intervals, the first conductive pin is connected to the LED chip through a first curved conductive sheet, and the second conductive pin is connected to the LED chip through a second curved conductive sheet; the first end of the glass cover is a sealed connecting seat formed by sintering the glass cover, the first conductive pin and the second conductive pin are embedded in and pass through the sealed connecting seat, and the LED chip, the first curved conductive sheet and the second curved conductive sheet are all arranged inside the glass cover.

[0005] Preferably, the first curved conductive sheet includes at least one first S-shaped bending portion, and the second curved conductive sheet includes at least one second S-shaped bending portion.

[0006] Preferably, the first curved conductive sheet and the second curved conductive sheet are both flat structures in a width direction.

[0007] Preferably, the first curved conductive sheet includes a first connecting portion connected to the first conductive pin, and the first connecting portion is welded to the first conductive pin; the second curved conductive sheet includes a second connecting portion connected to the second conductive pin, and the second connecting portion is welded to the second conductive pin.

[0008] Preferably, the first curved conductive sheet and the first conductive pin are integrally formed, and the second curved conductive sheet and the second conductive pin are integrally formed.

[0009] Preferably, a resistance element is connected in series to the first conductive pin or the second conductive pin.

[0010] Preferably, a second end of the glass cover body opposite to the first end is a sealed end formed by sintering the glass cover body so that a sealed cavity is formed inside the glass cover body.

[0011] Preferably, the sealing connection seat is in an arc surface structure, and the sealing end is in a pointed end structure.

[0012] The utility model also provides an LED light string, comprising a plurality of the above-mentioned LED glass bulbs, wherein the plurality of the LED glass bulbs are arranged in series or in parallel or in series and parallel.

[0013] Compared with the prior art, the embodiment of the utility model extends the path length of the high temperature of the flame when the first end of the glass cover is sintered, through the first conductive pin, the first curved conductive sheet and the second conductive pin, and the second curved conductive sheet, to transfer heat to the LED chip, so that the high temperature can dissipate heat to the surrounding environment as much as possible during the heat transfer process, reducing the impact of the high temperature on the LED chip and avoiding damage to the LED chip by the high temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 This is a structural diagram of the LED wick assembly of the LED glass bulb according to an embodiment of the utility model.

[0016] Figure 2 This is a structural diagram of an LED glass bulb in a specific implementation manner of an embodiment of the utility model.

[0017] Figure 3This is a structural diagram of an LED glass bulb in another specific implementation manner of the utility model.

[0018] Figure 4 This is another structural diagram of the LED wick assembly of the LED glass bulb according to an embodiment of the utility model.

[0019] Figure 5 It is a schematic diagram of the structure of the LED light string according to the embodiment of the utility model.

[0020] 100. LED glass bulb; 100a. LED glass bulb; 10. LED wick assembly; 10b. LED wick assembly; 1. LED chip; 21. first curved conductive sheet; 21b. first curved conductive sheet; 211. first S-shaped bending portion; 212. first connecting portion; 22. first conductive pin; 22b. first conductive pin; 31. second curved conductive sheet; 31b. second curved conductive sheet; 311. second S-shaped bending portion; 312. second connecting portion; 32. second conductive pin; 32b. second conductive pin; 4. resistor; 20. glass cover; 201. sealed connecting seat; 2011. first end; 202. sealed end; 2021. second end; 203. sealed cavity; 30. wire. DETAILED DESCRIPTION

[0021] In order to explain the technical content, structural features and effects achieved by the present invention in detail, the following is a detailed description in conjunction with the implementation modes and the accompanying drawings.

[0022] In the description of the present invention, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] like Figure 1 to Figure 2 As shown, the embodiment of the utility model provides an LED glass bulb 100, including a glass cover body 20 and an LED wick assembly 10, the LED wick assembly 10 includes an LED chip 1, a first conductive pin 22 and a second conductive pin 32, the first conductive pin 22 and the second conductive pin 32 are arranged at intervals, the first conductive pin 22 and the LED chip 1 are connected through the first curved conductive sheet 21, and the second conductive pin 32 and the LED chip 1 are connected through the second curved conductive sheet 31; the first end 2011 of the glass cover body 20 is a sealing connection seat 201 formed by sintering the glass cover body 20, the first conductive pin 22 and the second conductive pin 32 are embedded in and pass through the sealing connection seat 201, the LED chip 1, the first curved conductive sheet 21 and the second curved conductive sheet 31 are all arranged inside the glass cover body 20. Specifically, the glass cover body 20 is made of glass, and the sealing connection seat 201 can be formed by using a high-temperature flame to melt and combine part of the material of the glass cover body 20 through glass and metal sealing technology. The sealing connection seat 201 not only realizes the sealing of the first end 2011 of the glass cover body 20, but also realizes the fixation of the LED wick assembly 10 on the other hand, thereby ensuring that the LED chip 1 emits stable light; the LED chip 1 includes a positive electrode and a negative electrode, the first curved conductive sheet 21 is electrically connected to one of the positive electrode and the negative electrode, and the second curved conductive sheet 31 is electrically connected to the other of the positive electrode and the negative electrode.

[0025] The embodiment of the utility model provides the first curved conductive sheet 21 and the second curved conductive sheet 31, thereby extending the path length of the high temperature of the flame when the first end 2011 of the glass cover 20 is sintered, through the first conductive pin 22, the first curved conductive sheet 21, the second conductive pin 32, and the second curved conductive sheet 31 to transfer heat to the LED chip 1, so that the high temperature can dissipate heat to the surrounding environment as much as possible during the heat transfer process, reducing the impact of the high temperature on the LED chip 1, and preventing the LED chip 1 from being damaged by the high temperature.

[0026] In the embodiment of the utility model, the first curved conductive sheet 21 includes at least one first S-shaped bending portion 211, and the second curved conductive sheet 31 includes at least one second S-shaped bending portion 311. Specifically, the material of the first curved conductive sheet 21 and the second curved conductive sheet 31 can be copper-nickel-plated material or iron-nickel-plated material. The first curved conductive sheet 21 can include two first S-shaped bending portions 211, and the second curved conductive sheet 31 can include two second S-shaped bending portions 311. Of course, the number of the first S-shaped bending portions 211 and the number of the second S-shaped bending portions 311 can be designed according to design needs, and are not limited here. In addition, the first curved conductive sheet 21 and the second curved conductive sheet 31 are not limited to S-shaped bending, but can also be spirally bent, etc., and are specifically designed according to actual needs, as long as the path length of the first conductive pin 22 and the second conductive pin 32 from the sealing connection seat 201 position to the LED chip 1 can be extended.

[0027] In the embodiment of the utility model, the first curved conductive sheet 21 and the second curved conductive sheet 31 are both flat structures in the width direction. Specifically, by designing the first curved conductive sheet 21 and the second curved conductive sheet 31 as flat structures, the widths of the first curved conductive sheet 21 and the second curved conductive sheet 31 can be increased, thereby further increasing the area of ​​heat conduction, facilitating heat dissipation, reducing damage to the LED chip 1, and improving the yield of the LED glass bulb 100.

[0028] In the embodiment of the utility model, the first curved conductive sheet 21 includes a first connecting portion 212 connected to the first conductive pin 22, and the first connecting portion 212 is welded to the first conductive pin 22; the second curved conductive sheet 31 includes a second connecting portion 312 connected to the second conductive pin 32, and the second connecting portion 312 is welded to the second conductive pin 32. The first conductive pin 22 and the second conductive pin 32 are both metal wires, and the material of the metal wire is duroplast material. Since the first connecting portion 212 is a flat structure in the width direction, and the width of the first connecting portion 212 is set to be greater than the diameter of the first conductive pin 22, the first connecting portion 212 and the first conductive pin 22 are welded more conveniently and reliably. Similarly, since the second connecting portion 312 is a flat structure in the width direction, and the width of the second connecting portion 312 is set to be greater than the diameter of the first conductive pin 22, the second connecting portion 312 and the second conductive pin 32 are welded more conveniently and reliably. The first conductive pin 22 and the second conductive pin 32 are respectively connected to the positive and negative electrodes of the external circuit to form a complete electrical path.

[0029] In some other embodiments, such as Figure 4As shown, the first curved conductive sheet 21b and the first conductive pin 22b are integrally formed, and the second curved conductive sheet 31b and the second conductive pin 32b are integrally formed. Specifically, the materials of the first curved conductive sheet 21b, the first conductive pin 22b, the second curved conductive sheet 31b and the second conductive pin 32b can all be copper-plated nickel material or iron-plated nickel material. By integrally forming the first curved conductive sheet 21b and the first conductive pin 22b and the second curved conductive sheet 31b and the second conductive pin 32b, there is no need to use welding technology between the first curved conductive sheet 21b and the first conductive pin 22b and between the second curved conductive sheet 31b and the second conductive pin 32b of the LED lamp wick assembly 10b, and the performance is more reliable.

[0030] In some other embodiments, a resistor element 4 is connected in series to the first conductive pin 22 or the second conductive pin 32. Specifically, Figure 3 As shown, the first conductive pin 22 is electrically connected to the resistor element 4, which is disposed inside the glass cover 20. The resistor element 4 can be a carbon film resistor. The voltage on the LED chip 1 can be reduced by setting the carbon film resistor to protect the LED glass bulb 100a.

[0031] In the embodiment of the utility model, the LED chip 1 can be arranged in the middle of the glass cover 20, and the second end 2021 of the glass cover 20 opposite to the first end 2011 is a sealed end 202 formed by sintering the glass cover 20 so that a sealed cavity 203 is formed inside the glass cover 20. Specifically, the molding process of the LED glass bulb 100 of the utility model is as follows: first, an LED wick assembly 10 and a glass tube with openings at both ends are provided, the LED wick assembly 10 is arranged at a suitable position in the glass tube so that the first conductive pin 22 and the second conductive pin 32 are partially located on the inner side of the glass tube and the other part of the first conductive pin 22 and the second conductive pin 32 are located on the outer side of the glass tube, and the end of the glass tube close to the first conductive pin 22 and the second conductive pin 32 is sintered at high temperature using glass and metal sealing technology to form a sealed connection seat 201 so that the first conductive pin 22 and the second conductive pin 32 are embedded and pass through the sealing The sealing connection seat 201 is formed, and then the end of the glass tube away from the first conductive pin 22 and the second conductive pin 32 is sintered at a high temperature to form a sealing end 202, thereby forming the LED glass bulb 100 of the embodiment of the utility model. The sealing connection seat 201 and the sealing end 202 are both formed by melting and combining part of the glass tube material using a high-temperature flame, which effectively simplifies the product structure parts and their assembly process, has lower cost and better effect, and the specific shapes of the sealing connection seat 201 and the sealing end 202 can be selected according to actual needs. For example, the sealing connection seat 201 has an arc surface structure, and the sealing end 202 has a pointed structure, which has a more beautiful structure.

[0032] The LED glass bulb 100 of this embodiment has a reasonable structure, which effectively reduces the use of product parts and components, greatly reduces the processing steps, greatly improves production efficiency, and reduces production costs. At the same time, an LED wick assembly 10 is selected to reasonably utilize the characteristics of the LED chip 1 such as long life, high luminous efficiency, low energy consumption and environmental protection, and can completely replace the traditional tungsten filament glass bulb.

[0033] like Figures 1 to 5 As shown, the present utility model further discloses an LED light string, comprising a plurality of the above-mentioned LED glass bulbs 100, wherein the plurality of LED glass bulbs 100 are arranged in series or in parallel or in series and parallel. Figure 5 As shown, a plurality of LED glass bulbs 100 can be connected in parallel to the wire 30 .

[0034] The above disclosure is only a preferred example of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention still fall within the scope covered by the present invention.

Claims

1. An LED glass bulb, characterized in that: It comprises a glass cover and an LED lamp wick assembly, wherein the LED lamp wick assembly comprises an LED chip, a first conductive pin and a second conductive pin, wherein the first conductive pin and the second conductive pin are arranged at intervals, the first conductive pin is connected to the LED chip via a first curved conductive sheet, and the second conductive pin is connected to the LED chip via a second curved conductive sheet; The first end of the glass cover is a sealing connection seat formed by sintering the glass cover, the first conductive pin and the second conductive pin are embedded in and pass through the sealing connection seat, and the LED chip, the first curved conductive sheet and the second curved conductive sheet are all arranged inside the glass cover.

2. The LED glass bulb according to claim 1, characterized in that: The first curved conductive sheet includes at least one first S-shaped bending portion, and the second curved conductive sheet includes at least one second S-shaped bending portion.

3. The LED glass bulb according to claim 2, characterized in that: The first curved conductive sheet and the second curved conductive sheet are both flat structures in a width direction.

4. The LED glass bulb according to claim 1, characterized in that: The first curved conductive sheet includes a first connection portion connected to the first conductive pin, and the first connection portion is welded to the first conductive pin; the second curved conductive sheet includes a second connection portion connected to the second conductive pin, and the second connection portion is welded to the second conductive pin.

5. The LED glass bulb according to claim 1, characterized in that: The first curved conductive sheet and the first conductive pin are integrally formed, and the second curved conductive sheet and the second conductive pin are integrally formed.

6. The LED glass bulb according to claim 1, characterized in that: A resistance element is connected in series to the first conductive pin or the second conductive pin.

7. The LED glass bulb according to claim 1, characterized in that: The second end of the glass cover body opposite to the first end is a sealed end formed by sintering the glass cover body so that a sealed cavity is formed inside the glass cover body.

8. The LED glass bulb according to claim 7, characterized in that: The sealing connection seat is in an arc surface structure, and the sealing end is in a pointed end structure.

9. An LED light string, characterized in that: It comprises a plurality of LED glass bulbs as described in any one of claims 1 to 8, wherein the plurality of LED glass bulbs are arranged in series or in parallel or in series and parallel.

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