CN107620875B - LED filament lamp - Google Patents
LED filament lamp Download PDFInfo
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- CN107620875B CN107620875B CN201711033420.XA CN201711033420A CN107620875B CN 107620875 B CN107620875 B CN 107620875B CN 201711033420 A CN201711033420 A CN 201711033420A CN 107620875 B CN107620875 B CN 107620875B
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Abstract
本发明涉及一种LED灯丝灯，包括泡壳、芯柱、LED驱动电源、灯头和LED灯丝，所述LED灯丝固定在芯柱上，并具有相互间隔开往灯头方向延伸的一正极导丝以及一负极导丝，所述LED驱动电源包括驱动电路板和设置在驱动电路板上的电子元件，所述驱动电路板上设有相互间隔开的第一通孔和第二通孔，所述第一通孔和第二通孔的内壁上都具有导电金属层，该导电金属层和驱动电路板上的电路相电连接，所述正极导丝穿过第一通孔并与第一通孔上的导电金属层相接触，所述负极导丝穿过第二通孔并与第二通孔上的导电金属层相接触，以解决现有LED灯丝灯导丝焊接耗时费力以及损耗高的问题。
The invention relates to an LED filament lamp, comprising a bulb shell, a stem, an LED driving power supply, a lamp holder and an LED filament. The LED filament is fixed on the stem and has a positive electrode conductor and a negative electrode conductor which are spaced apart from each other and extend toward the lamp holder. The LED driving power supply comprises a driving circuit board and electronic components arranged on the driving circuit board. The driving circuit board is provided with a first through hole and a second through hole which are spaced apart from each other. The inner walls of the first through hole and the second through hole both have a conductive metal layer which is electrically connected to a circuit on the driving circuit board. The positive electrode conductor passes through the first through hole and contacts with the conductive metal layer on the first through hole, and the negative electrode conductor passes through the second through hole and contacts with the conductive metal layer on the second through hole, so as to solve the problem that welding of the conductor wire of the existing LED filament lamp is time-consuming, labor-intensive and has high loss.
Description
Technical Field
The invention relates to the field of illumination, in particular to an LED filament lamp.
Background
The LED filament lamp can realize 360-degree full-angle light emission, has the same appearance as an incandescent lamp, and is widely applied to lamps such as ceiling lamps, wall lamps and the like. The structure of the existing LED filament lamp is mainly that a group of LED chips are packaged on a transparent substrate, pins are respectively LED out from two ends of the LED chips, and the LED filament lamp can emit light at all angles like tungsten wires after being connected with a direct current power supply. The LED filaments are fixed on the core column in a serial connection or parallel connection or a serial-parallel combination mode and are driven by an LED driving power supply.
If publication number CN203703703U discloses a LED filament bulb, which is composed of bulb shell, stem, LED driving power supply, lamp cap and LED filament, at least two vertically arranged LED filaments are electrically connected with the 1 st and 2 nd lead wires through connecting pieces and fixed on the stem, the resistance-capacitance step-down rectifying circuit and the constant current circuit of the LED driving power supply adopt integrated chips and high-voltage patch capacitors, so that the LED driving power supply can be welded on a circular circuit board matched with the shape of the opening part of the lamp cap, thereby greatly simplifying the installation size of the LED driving power supply in the LED filament bulb. Since the drive circuit board is mounted in the opening portion of the base, the size of the drive circuit board is limited by the size of the base, and the characteristic is that the size of the drive circuit board which can be accommodated for a base of small size like E12 is smaller. The existing LED filament lamp is assembled by manually welding the anode and cathode guide wires of the LED filament on a driving circuit board, the size of the driving circuit board is small, the area of a bonding pad corresponding to the guide wire is small, and the guide wire has certain hardness, so that a great amount of time is required to be consumed in welding the guide wire, the loss is extremely high, and electronic elements forming a driving power supply are welded on the driving circuit board, and become barriers in welding, so that the production efficiency is low, and the cost of the LED filament lamp cannot be reduced.
Disclosure of Invention
The invention aims to provide an LED filament lamp so as to solve the problems of time and labor consumption and high loss in welding of guide wires of the existing LED filament lamp.
The specific scheme is as follows:
The utility model provides a LED filament lamp, includes bulb, stem, LED drive power supply, lamp holder and LED filament, the LED filament is fixed on the stem to have a positive pole seal wire and a negative pole seal wire that mutual interval extends towards the lamp holder direction, LED drive power supply includes drive circuit board and the electronic component of setting on drive circuit board, be equipped with first through-hole and the second through-hole of mutual spaced apart on the drive circuit board, all have conductive metal layer on the inner wall of first through-hole and second through-hole, this conductive metal layer is connected with the circuit on the drive circuit board mutually electricity, positive pole seal wire passes first through-hole and contacts with conductive metal layer on the first through-hole, the negative pole seal wire passes the second through-hole and contacts with conductive metal layer on the second through-hole. The positive electrode guide wire and the negative electrode guide wire of the LED filament lamp respectively contact with the conductive metal layers on the first through hole and the second through hole to form electric connection after penetrating through the first through hole and the second through hole on the driving circuit board, so that the LED filament lamp can be directly assembled without being connected in a welding mode, a large amount of assembly time can be saved, and the problem of loss caused by welding can be avoided.
Preferably, the device further comprises an insulating fixing support, wherein the fixing support comprises a body, a first column body and a second column body which are positioned on the body and are mutually spaced, the positions of the first column body and the second column body respectively correspond to the first through hole and the second through hole, the first column body is provided with a first fixing part for fixing the positive electrode guide wire, and the second column body is provided with a second fixing part for fixing the negative electrode guide wire; the first fixing part is a U-shaped first groove, the first groove is positioned at one end of the first column body facing the driving circuit board, the second fixing part is a U-shaped second groove, the second groove is positioned at one end of the second column body facing the driving circuit board, one section of the positive electrode guide wire extending from the bulb shell to the lamp cap is clamped in the first groove, the tail section of the positive electrode guide wire is bent towards the bulb shell from the lamp cap, the positive electrode guide wire and the conductive metal layer on the first through hole form 2 contact points, one section of the negative electrode guide wire extending from the bulb shell to the lamp cap is clamped in the second groove, the tail section of the negative electrode guide wire is bent towards the bulb shell from the lamp cap, and the negative electrode guide wire and the conductive metal layer on the second through hole form 2 contact points. The positive electrode guide wire forms 2 contact points with the first through hole, the negative electrode guide wire forms 2 contact points with the second through hole, the guide wire can form better electric contact with the conductive metal layer in the corresponding through hole in the process of assembling the filament lamp, and when the first column body and the second column body on the fixed support are respectively clamped in the first through hole and the second through hole, the whole clamping structure is more stable and is not easy to shake, and the positive electrode guide wire and the negative electrode guide wire cannot slide out from the groove.
Preferably, the outer diameter of the positive electrode guide wire is D1, the outer diameter of the first cylinder is D1, the inner diameter of the first through hole is Hd1, 2d1+d1 is more than or equal to Hd1, the outer diameter of the negative electrode guide wire is D2, the outer diameter of the second cylinder is D2, the inner diameter of the second through hole is Hd2, and 2d2+d2 is more than or equal to Hd2. So that the first column body and the second column body form an excessively tight fit when being inserted into the first through hole and the second through hole.
Preferably, the lengths of the first column and the second column are different. The first column body and the second column body with different lengths are convenient for distinguishing the anode and the cathode, and have foolproof effect.
Preferably, the stem is in a horn shape towards one end of the lamp cap, the body of the fixing support is in a disc shape, and the periphery of the body of the fixing support is provided with a chamfer. The body and the stem of the fixed bracket are matched with each other, so that the fixed bracket can be conveniently installed.
Preferably, the LED lamp further comprises an insulating isolation sleeve, wherein the insulating isolation sleeve is sleeved inside the lamp cap, and the LED driving power supply is positioned in the insulating isolation sleeve. The insulating isolation sleeve can improve the electrical distance between the electronic element on the driving circuit board and the lamp cap, and improve the insulating effect.
Compared with the prior art, the LED filament lamp provided by the invention has the following beneficial effects:
1. According to the LED filament lamp provided by the invention, the LED filaments are fixed on the core column, the positive electrode guide wire and the negative electrode guide wire are LED out from the core column, and respectively pass through the first through hole and the second through hole on the driving circuit board and are contacted with the conductive metal layers on the first through hole and the second through hole, so that the electric connection between the LED filaments and the driving circuit board is realized, and the electric connection is realized in a contact mode, so that the LED filaments can be directly assembled without being connected in a welding mode, a great amount of assembly time can be saved, the problem of loss caused by welding can be avoided, and in addition, the area of the connection position of the positive electrode guide wire and the negative electrode guide wire can be reduced, so that the cloth plate of the driving circuit board is simpler.
2. According to the LED filament lamp provided by the invention, the fixing and the contact between the guide wire and the driving circuit board are realized through the fixing support, and the assembly difficulty between the guide wire and the driving circuit board can be further reduced, so that the assembly efficiency is further improved, and the fixing support structure can be convenient for the assembly and the fixing of the fixing support.
Drawings
Fig. 1 shows a cross-sectional view of an LED filament lamp.
Fig. 2 shows an exploded view of an LED filament lamp.
Fig. 3 shows a schematic view of the fixing bracket.
Fig. 4 shows an assembly view of the stem and the fixing bracket.
Detailed Description
For further illustration of the various embodiments, the invention is provided with the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments and together with the description, serve to explain the principles of the embodiments. With reference to these matters, one of ordinary skill in the art will understand other possible embodiments and advantages of the present invention. The components in the figures are not drawn to scale and like reference numerals are generally used to designate like components.
The invention will now be further described with reference to the drawings and detailed description.
As shown in fig. 1 and 2, the present invention provides an LED filament lamp, which includes a bulb shell 1, a stem 2, an LED driving power supply 3, a lamp cap 4 and an LED filament 5, where the LED filament 5 is fixed on the stem 2 and has a positive guide wire 60 and a negative guide wire 62 that are spaced from each other and extend toward the direction of the lamp cap 4, the LED driving power supply 3 includes a driving circuit board 30 and electronic elements 32 disposed on the driving circuit board 30, where the number of the LED filaments 5 shown in fig. 1 and 2 is 2, but one or more LED filaments may be actually connected in a serial, parallel or a combination of serial and parallel manner, the electronic elements 32 in fig. 1 and 2 only show one of the largest capacitors to represent the space occupied by the LED filaments, other electronic elements are not shown, and the circuit structure of the driving power supply is also in the prior art, the lamp cap is not described in detail herein, and the lamp cap may also be actually used as an E12 lamp cap with smaller size, E14, E27, etc.
Referring to fig. 1 and 2, the driving circuit board 30 is provided with a first through hole 300 and a second through hole 302 which are spaced apart from each other, the positions of the first through hole 300 and the second through hole 302 respectively correspond to those of the positive electrode wire 60 and the negative electrode wire 62, the inner walls of the first through hole 300 and the second through hole 302 are provided with conductive metal layers, the conductive metal layers are electrically connected with a circuit on the driving circuit board 30, the conductive metal layers can be realized by adopting a via copper plating technology of a PCB production process, the positive electrode wire 60 passes through the first through hole 300 and contacts with the conductive metal layers on the first through hole 300, and the negative electrode wire 62 passes through the second through hole 302 and contacts with the conductive metal layers on the second through hole 302, so that the electric connection between the LED filament 5 and the LED driving power supply 3 is realized. Since the positive and negative guide wires are generally metal wires having a certain hardness, such as nickel wires, an interference fit may be used between the positive guide wire 60, the negative guide wire 62, and the first and second through holes 300 and 302 to achieve a fixed connection.
Referring to fig. 2 and 3, as a preferred embodiment of the mutual fixation between the positive and negative electrode wires 60 and 62 and the driving circuit board 30, the LED filament lamp further includes an insulating fixing bracket 7, the fixing bracket 7 includes a body 70, and first and second columns 72 and 74 spaced apart from each other on the body, the first and second columns 72 and 74 are positioned to correspond to the first and second through holes 300 and 302, respectively, the first column 72 has a first fixing portion 720 for fixing the positive electrode wire 60, the second column 74 has a second fixing portion 740 for fixing the negative electrode wire 62, the positive and negative electrode wires 60 and 62 are fixed to the first and second fixing portions 720 and 740, respectively, and the first and second columns 72 and 74 pass through the first and second through holes 300 and 302 to electrically connect the positive and negative electrode wires 60 and 62 to the conductive metal layers on the first and second through holes 300 and 302, respectively.
Referring to fig. 3 and 4, the first fixing portion 720 is a first groove of a "U" shape, and the first groove is located at an end of the first column 72 facing the driving circuit board. The second fixing portion 740 is a second groove of a "U", and the second groove is located on an end of the second post 74 facing the driving circuit board. Because the first fixing portion 720 and the second fixing portion 740 are both grooves of "U", a section of the positive electrode wire 60 extending from the bulb shell toward the lamp cap is clamped in the first groove, a tail section of the positive electrode wire 60 is bent toward the bulb shell away from the lamp cap, and 2 contact points are formed between the positive electrode wire 60 and the conductive metal layer on the first through hole 300, a section of the negative electrode wire 62 extending from the bulb shell toward the lamp cap is clamped in the second groove, a tail section of the negative electrode wire 62 is bent toward the bulb shell away from the lamp cap, and 2 contact points are formed between the negative electrode wire 62 and the conductive metal layer on the second through hole 302. The positive electrode guide wire forms 2 contact points with the first through hole, the negative electrode guide wire forms 2 contact points with the second through hole, the guide wire can form better electric contact with the conductive metal layer in the corresponding through hole in the process of assembling the filament lamp, and when the first column body and the second column body on the fixed support are respectively clamped in the first through hole and the second through hole, the whole clamping structure is more stable and is not easy to shake, and the positive electrode guide wire and the negative electrode guide wire cannot slide out from the groove.
Referring to fig. 3 and 4, it is further preferable that the outer diameter of the positive electrode wire is D1, the outer diameter of the first cylinder is D1, the inner diameter of the first through hole is Hd1, 2d1+d1 is greater than or equal to Hd1, the outer diameter of the negative electrode wire is D2, the outer diameter of the second cylinder is D2, the inner diameter of the second through hole is Hd2, and 2d2+d2 is greater than or equal to Hd2. When the first column body and the second column body are inserted into the first through hole and the second through hole, an excessively tight fit is formed, so that the assembly is facilitated.
Referring to fig. 3, wherein the first and second cylinders 72, 74 are different in length. So as to distinguish the anode and the cathode of the LED filament and play a foolproof role.
Referring to fig. 3 and 4, the stem 2 is in a horn shape towards one end 20 of the lamp cap, the body 70 of the fixing support 7 is in a disc shape, and the periphery of the stem is provided with a chamfer, so that the body 70 of the fixing support 7 is matched with the horn mouth of the stem 2, and after the first post 72 and the second post 74 are inserted into the first through hole 300 and the second through hole 302, the body 70 of the fixing support 7 is positioned in the horn mouth, thereby not only facilitating the installation of the fixing support, but also ensuring that the whole fixing support is more stable after being installed and can not shake.
Referring to fig. 2, the LED filament lamp further includes an insulating spacer 8, the insulating spacer 8 is sleeved inside the lamp cap 4, the LED driving power source 3 is located in the insulating spacer 8, after the driving power source 3 is placed in the lamp cap due to the small space in the lamp cap 4, the driving circuit board 30 and the electronic component 32 of the driving power source 3 are very close to the lamp cap, and the insulating spacer 8 can ensure the electrical space between the driving power source 3 and the lamp cap 4, where the insulating spacer 8 is preferably a rubber sleeve.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (2)
1. The LED filament lamp comprises a bulb shell, a stem, an LED driving power supply, a lamp cap and an LED filament, and is characterized in that the LED filament is fixed on the stem and is provided with an anode guide wire and a cathode guide wire which are mutually spaced and extend towards the direction of the lamp cap, the LED driving power supply comprises a driving circuit board and an electronic element arranged on the driving circuit board, the driving circuit board is provided with a first through hole and a second through hole which are mutually spaced, the inner walls of the first through hole and the second through hole are respectively provided with a conductive metal layer, the conductive metal layers are electrically connected with a circuit on the driving circuit board, and the anode guide wire penetrates through the first through hole and is in contact with the conductive metal layer on the first through hole, and the cathode guide wire penetrates through the second through hole and is in contact with the conductive metal layer on the second through hole;
The device comprises a body, a first through hole, a second through hole, a first fixing part, a second fixing part, a first connecting part, a second connecting part and a second connecting part, wherein the first connecting part is used for connecting the first connecting part and the second connecting part; the first fixing part is a U-shaped first groove which is positioned at one end of the first column body facing the driving circuit board, the second fixing part is a U-shaped second groove which is positioned at one end of the second column body facing the driving circuit board, the section of the positive electrode guide wire extending from the bulb shell to the lamp cap is clamped in the first groove, the tail section of the positive electrode guide wire is bent to deviate from the lamp cap to the bulb shell direction, and the positive electrode guide wire and the conductive metal layer on the first through hole form 2 contact points, the section of the negative electrode guide wire extending from the bulb shell to the lamp cap is clamped in the second groove, the tail section of the negative electrode guide wire is bent to deviate from the lamp cap to the bulb shell direction, and the conductive metal layer on the negative electrode guide wire and the second through hole form 2 contact points so as to avoid production yield loss caused by welding and reduce the area of the connecting position of the negative electrode guide wire to ensure that the cloth plate of the driving circuit board is simple;
the core column is in a horn shape towards one end of the lamp cap;
The positive electrode guide wire has an outer diameter D1, the first cylinder has an outer diameter D1, the first through hole has an inner diameter Hd1, 2d1+D1 is larger than or equal to Hd1, the negative electrode guide wire has an outer diameter D2, the second cylinder has an outer diameter D2, the second through hole has an inner diameter Hd2, 2d2+D2 is larger than or equal to Hd2, the first cylinder and the second cylinder have different lengths, so that the installation positions of the positive electrode guide wire and the negative electrode guide wire are distinguished, and the fool-proof effect is achieved.
2. The LED filament lamp of claim 1, further comprising an insulating spacer sleeve, wherein the insulating spacer sleeve is sleeved inside the lamp cap, and the LED driving power supply is positioned in the insulating spacer sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711033420.XA CN107620875B (en) | 2017-10-30 | 2017-10-30 | LED filament lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711033420.XA CN107620875B (en) | 2017-10-30 | 2017-10-30 | LED filament lamp |
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| Publication Number | Publication Date |
|---|---|
| CN107620875A CN107620875A (en) | 2018-01-23 |
| CN107620875B true CN107620875B (en) | 2024-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711033420.XA Active CN107620875B (en) | 2017-10-30 | 2017-10-30 | LED filament lamp |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253350A (en) * | 2018-02-06 | 2018-07-06 | 福建众益太阳能科技股份公司 | A kind of filament Lawn lamp |
| CN111322536B (en) * | 2020-01-06 | 2024-05-07 | 海宁市新宇光能科技有限公司 | Hard guide wire filament lamp production host |
| CN111006139B (en) * | 2020-01-06 | 2024-05-03 | 海宁市新宇光能科技有限公司 | Hard guide wire filament lamp |
| CN113280276A (en) * | 2021-06-01 | 2021-08-20 | 浙江阳光照明电器集团股份有限公司 | LED filament lamp |
| CN114727437B (en) * | 2022-04-15 | 2025-08-29 | 至芯半导体(杭州)有限公司 | A deep ultraviolet LED germicidal bulb |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206112580U (en) * | 2016-10-19 | 2017-04-19 | 漳州立达信光电子科技有限公司 | LED Filament Lamp |
| CN206112584U (en) * | 2016-10-21 | 2017-04-19 | 浙江阳光美加照明有限公司 | A bonding wire coupling mechanism exempts from that is used for LED to aerify ball bubble lamp |
| CN207407094U (en) * | 2017-10-30 | 2018-05-25 | 厦门海莱照明有限公司 | A kind of LED filament lamp |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879669A (en) * | 2015-06-19 | 2015-09-02 | 厦门李氏兄弟有限公司 | LED filament lamp |
| CN105090907B (en) * | 2015-09-09 | 2023-02-10 | 漳州立达信光电子科技有限公司 | LED lamp electric connection structure |
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- 2017-10-30 CN CN201711033420.XA patent/CN107620875B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206112580U (en) * | 2016-10-19 | 2017-04-19 | 漳州立达信光电子科技有限公司 | LED Filament Lamp |
| CN206112584U (en) * | 2016-10-21 | 2017-04-19 | 浙江阳光美加照明有限公司 | A bonding wire coupling mechanism exempts from that is used for LED to aerify ball bubble lamp |
| CN207407094U (en) * | 2017-10-30 | 2018-05-25 | 厦门海莱照明有限公司 | A kind of LED filament lamp |
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