CN216243643U - LED bulb without driving power supply - Google Patents
LED bulb without driving power supply Download PDFInfo
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- CN216243643U CN216243643U CN202123056680.3U CN202123056680U CN216243643U CN 216243643 U CN216243643 U CN 216243643U CN 202123056680 U CN202123056680 U CN 202123056680U CN 216243643 U CN216243643 U CN 216243643U
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Abstract
The utility model discloses an LED bulb without a driving power supply, which comprises a lamp holder, a bulb shell, a current-limiting resistor, a core column and an LED filament. LED filament both ends are equipped with connecting terminal, be equipped with two conducting circuits on the base plate of LED filament, the conducting circuit both ends are connected to connecting terminal through rectifier diode respectively, rectifier diode with the conducting circuit both ends arranges with opposite direction, rectifier diode who connects different conducting circuits on same connecting terminal arranges with opposite direction, emitting diode is connected to two conducting circuits, the stem is equipped with first wire and second wire, the LED filament is connected between first and second wire, still be provided with current-limiting resistor on stem or the LED filament, first and second wire are connected to the lamp holder. The present case has realized that the LED bulb need not install drive power supply, can the external alternating current power supply of lug connection, lights the illumination, has removed the cost of installing drive power supply from, simple structure, low in manufacturing cost, long service life.
Description
Technical Field
The utility model relates to the field of LED lamps, in particular to an LED bulb without a driving power supply.
Background
The LED lamp is focused on its advantages of energy saving, durability and environmental protection, and is becoming a new generation light source to be popularized and applied. The LED lamp aims at the problems that the traditional direct current LED light-emitting device needs a driving power supply and can be connected with an external alternating current power supply, so that the manufacturing cost is high, the service life of the lamp is influenced, the power supply consumes excessive energy and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides an LED bulb without a driving power supply.
The technical scheme adopted by the utility model is as follows:
a non-driving power supply LED bulb comprises a lamp holder, a bulb shell, a first current-limiting resistor, a core column and an LED filament, wherein the LED filament comprises a substrate, a rectifier diode and a light-emitting diode;
the LED lamp comprises an LED lamp filament, wherein connecting terminals are arranged at two ends of the LED lamp filament, two conductive circuits are arranged on a substrate of the LED lamp filament, two ends of each conductive circuit are respectively connected to the connecting terminals through rectifier diodes, the rectifier diodes at two ends of the same conductive circuit are arranged in opposite directions, the rectifier diodes connected with different conductive circuits on the same connecting terminal are arranged in opposite directions, and a light emitting diode is connected to the two conductive circuits;
the stem is provided with a first lead and a second lead, the LED filament is connected between the first lead and the second lead, the first lead is connected with the lamp holder after being connected with the first current-limiting resistor, and the second lead is connected with the lamp holder.
The rectifier diode can be a light emitting diode or a silicon rectifier diode.
Preferably, the first current limiting resistor and the core are fused together to form a core with a resistor.
And a second lead of the core column is connected with a second current-limiting resistor and then connected to the lamp cap.
Preferably, the first flow resistor, the second resistor and the core column are fused together to form a core column with a resistor.
The first current-limiting resistor and the second current-limiting resistor can be arranged in a sealed cavity formed by the core column and the bulb shell, and can also be arranged outside the sealed cavity and positioned in the lamp holder.
Furthermore, the stem is provided with a sealing plug, the sealing plug is provided with at least one sealing hole for containing a first current-limiting resistor, the first lead is connected to the lamp holder after being connected with the first current-limiting resistor, the second lead penetrates through the sealing plug and is connected to the lamp holder, the sealing plug is installed at the lower end of the bulb shell, and the outer side wall of the sealing plug is attached to the inner side wall of the bulb shell and is tightly matched with the inner side wall of the bulb shell in a sealing manner.
Furthermore, the bulb shell is made of a plastic material, an external thread is arranged on the outer side of the lower end of the bulb shell, an internal thread is arranged on the inner side of the lamp holder, and the external thread is in threaded connection with the internal thread.
The other technical scheme adopted by the utility model is as follows:
a non-driving power supply LED bulb comprises a lamp holder, a bulb shell, a core column and an LED filament, wherein the LED filament comprises a substrate, a rectifier diode, a light emitting diode and a third current limiting resistor;
LED filament both ends are equipped with connecting terminal, be equipped with two conducting circuits on the base plate of LED filament, two conducting circuits both ends are connected to connecting terminal through rectifier diode respectively, and rectifier diode at same conducting circuit both ends arranges with opposite direction, and rectifier diode who connects different conducting circuits on same connecting terminal arranges with opposite direction, and two conducting circuits are connected to emitting diode, and at least one third current-limiting resistor sets up between connecting terminal and rectifier diode, between rectifier diode and the conducting circuit or arbitrary one position or a plurality of positions between conducting circuit and the emitting diode to form the electricity and connect.
The stem is provided with a first lead and a second lead, the LED filament is connected between the first lead and the second lead, and the first lead and the second lead are connected to the lamp holder.
The rectifier diode can be a light emitting diode or a silicon rectifier diode.
Preferably, the third current limiting resistor is a chip resistor.
Furthermore, the stem is provided with a sealing plug, the first lead and the second lead penetrate through the sealing plug and are connected to the lamp holder, the sealing plug is installed at the lower end of the bulb shell, and the outer side wall of the sealing plug is attached to the inner side wall of the bulb shell and is in tight sealing fit with the inner side wall of the bulb shell.
Furthermore, the bulb shell is made of a plastic material, an external thread is arranged on the outer side of the lower end of the bulb shell, an internal thread is arranged on the inner side of the lamp holder, and the external thread is in threaded connection with the internal thread.
Furthermore, the lamp also comprises a fourth current-limiting resistor, and the first lead or the second lead of the core column is connected with the lamp cap after being connected with the fourth current-limiting resistor.
Preferably, the fourth current limiting resistor and the core column are fused together to form a core column with a resistor.
Furthermore, the lamp also comprises a fifth current-limiting resistor and a sixth current-limiting resistor, wherein the first lead and the second lead of the core column are respectively connected with the fifth current-limiting resistor and the sixth current-limiting resistor and then are connected with the lamp cap.
Preferably, the fifth current resistor, the sixth current resistor and the core column are fused together to form a core column with a self-resistance.
The fourth, fifth and sixth current-limiting resistors can be arranged in a sealed cavity formed by the core column and the bulb shell, or can be arranged outside the sealed cavity and positioned in the lamp holder.
Furthermore, the third current-limiting resistor can be replaced by a constant-current IC, so that the constant-current effect of the filament is better and more stable.
By adopting the technical scheme, the LED bulb can be directly connected with an external alternating current power supply without installing a driving power supply, so that illumination is lightened. The LED bulb has the advantages of avoiding the cost of installing a driving power supply, having simple structure and high production efficiency, greatly reducing the manufacturing cost of the LED bulb, having good stability and being suitable for more external power supplies. The cost of the bulb produced by the utility model is 40-60% lower than that of other bulbs needing to be provided with a driving power supply.
The utility model limits the working current of the LED (light emitting diode) string on the LED filament by arranging the current-limiting resistor, so that the number of the LED string chips can not be limited by the voltage of an external power supply, and the number of the LED chips can be set according to the requirements of power and brightness.
The current-limiting resistors with different resistance values are selected to adapt to the conditions of different external voltages of different countries or regions: under the condition that the number of the LED chips connected in series on the filament substrate is the same, a current limiting resistor with a small resistance value is selected for adaptation under the condition of 110V alternating voltage, and a current limiting resistor with a relatively large resistance value is selected for adaptation under the condition of 220V alternating voltage.
Different clients' demands on LED bulb power and luminance are different through the different quantity LEDs and the resistance of different resistances that establish ties: aiming at the requirements of high power and high brightness, a current-limiting resistor with smaller resistance value and a plurality of LED chips can be connected in series; aiming at the requirements of low power and low brightness, the LED driving circuit can be realized by connecting a current-limiting resistor with larger resistance value and a small number of LEDs in series.
In addition, the utility model also prevents water or moisture from entering the bulb shell through the arrangement of the sealing plug, so that fog is not generated when the bulb is lightened, the lighting effect is good, the reliability is better, and the service life is longer.
Drawings
The utility model is described in further detail below with reference to the accompanying drawings and the detailed description;
fig. 1 is a schematic structural diagram of an LED bulb without a driving power supply according to a first embodiment of the present invention;
FIG. 2 is a schematic diagram of a filament structure of an LED bulb without a driving power supply according to a first embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a second embodiment of an LED bulb without a driving power supply according to the present invention;
fig. 4 is a schematic diagram of a stem structure of a non-driving power supply LED bulb according to a second embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a third embodiment of an LED bulb without a driving power supply according to the present invention;
fig. 6 is a schematic structural diagram of a fourth embodiment of an LED bulb without a driving power supply according to the present invention.
Fig. 7 is a schematic diagram of a filament structure of a fourth embodiment of an LED bulb without a driving power supply according to the present invention.
Detailed Description
The utility model is illustrated by the following specific examples.
The first embodiment is as follows:
as shown in fig. 1, the first embodiment discloses a non-driving power supply LED bulb, which includes a lamp cap 1, a bulb shell 2, a first current-limiting resistor 3, a stem 4 and an LED filament 5. The LED filament 5 comprises a substrate, a rectifier diode and a light emitting diode 54.
As shown in fig. 2, the LED filament 5 of the first embodiment has two terminals 511 and 512 at two ends thereof, the LED filament has two conductive traces 521 and 522 on a substrate thereof, the two terminals 521 and 522 of the two conductive traces 521 and 522 are connected to the terminals 511 and 512 through rectifier diodes 531,532, 533 and 534, respectively, wherein the rectifier diodes 531 and 533 at the two ends of one conductive trace 521 are arranged in opposite directions, the rectifier diodes 532,534 at the two ends of the other conductive trace 522 are arranged in opposite directions, the rectifier diode 531,532 connected to different conductive traces at one terminal 511 is arranged in opposite directions, the rectifier diode 533,534 connected to different conductive traces at the other terminal 512 is arranged in opposite directions, and the light emitting diode 54 is connected to the two conductive traces 521 and 522.
The rectifier diode is a silicon rectifier diode chip, and the rectifier diode chip is attached to the filament substrate only in the process of manufacturing the filament when the LED chip is attached, so that an additional process of attaching a chip is not needed, the production and the processing are convenient, the manufacturing cost is low, in addition, the reverse voltage resistance of the silicon rectifier diode is high, the use is safer, and the service life is longer.
As shown in fig. 1, the stem 4 has a first conducting wire 411 and a second conducting wire 412, the LED filament 5 is connected between the first conducting wire 411 and the second conducting wire 412, the first conducting wire 411 is connected to the base 1 after being connected to the first current limiting resistor 3, and the second conducting wire 412 is connected to the base 1. Or, the second conducting wire 412 of the stem 4 is connected to a second current-limiting resistor and then connected to the lamp cap.
The first current-limiting resistor 3 is arranged outside the closed cavity 6 formed by the core column 4 and the bulb shell 2 and is positioned in the lamp holder 1, so that heat dissipation of the resistor is facilitated, the use is safer, and the service life is longer.
The bulb shell 2 can also be made of plastic materials, external threads are arranged on the outer side of the lower end of the bulb shell 2, internal threads are arranged on the inner side of the lamp holder 1, and the external threads are in threaded connection with the internal threads. Therefore, the bulb can be easily disassembled when parts need to be replaced, and convenience and rapidness are achieved. The internal and external threads can also be coated with sealant, so that the sealing property of the bulb is improved.
Example two:
the embodiment I discloses a non-driving power supply LED bulb, which comprises a lamp holder 1, a bulb shell 2, a first current-limiting resistor 3, a core column 4 and an LED filament 5.
As shown in fig. 3, the difference between the second embodiment and the first embodiment is: in the manufacturing process of manufacturing the core column 4, the first current-limiting resistor 3 and the core column 4 are fused together to form the core column 4' with the resistor, so that the working procedure of welding the resistor in the subsequent bulb assembling process is omitted, and the manufacturing cost is further reduced.
As shown in fig. 4, the stem 4 'with its resistor includes a glass flared tube 42, an exhaust tube 43, a first current limiting resistor 3, and a first conducting wire 411, wherein a first pin 311 and a second pin 312 are disposed at two ends of the first current limiting resistor 3, and the first current limiting resistor 3 and the pins 311 and 312 at two ends thereof are combined into a second conducting wire 412 of the stem 4'. The first lead 311, the first conductive wire 411, and the exhaust tube 43 are high-temperature sintered with the top end of the glass bell-mouthed tube 42. In order to ensure the fusing effect, the first conductive wire 411 and the first lead 311 are made of magnesium, and the second lead 312 is made of metal material such as nickel, iron, copper or aluminum, so as to reduce the production cost.
The first current limiting resistor 3 body can be positioned above the glass flared tube, inside the glass flared tube or below the glass flared tube according to specific requirements.
Example three:
the embodiment I discloses a non-driving power supply LED bulb, which comprises a lamp holder 1, a bulb shell 2, a first current-limiting resistor 3, a core column 4 and an LED filament 5.
As shown in fig. 5, the difference between the third embodiment and the first embodiment is: the stem 4 is provided with a sealing plug 44, the sealing plug 44 is provided with at least one sealing hole 45 for accommodating the first current-limiting resistor 3, the first conducting wire 411 is connected to the lamp holder 1 after being connected to the first current-limiting resistor 3, and the second conducting wire 412 is connected to the lamp holder 1 after being pierced through the sealing plug once. The sealing plug 44 is arranged at the lower end of the bulb shell 2, the outer side wall of the sealing plug 44 is attached to the inner side wall of the bulb shell 2 and tightly matched in sealing mode, water or moisture is prevented from entering the bulb shell 2, fog cannot be generated when the bulb is lightened, the lighting effect is good, the reliability is better, and the service life is longer.
The core column 4 can also adopt a plastic colloid core column which fixes the first current-limiting resistor 3, the first conducting wire 411 and the second conducting wire 412 in a rubber plug through an injection molding process to form a whole self-provided resistor.
Example four:
as shown in fig. 6, the fourth embodiment discloses a driving power supply-free LED bulb, which includes a lamp holder 1, a bulb shell 2, a stem 4, and an LED filament 5. The LED filament 5 includes a substrate, a rectifying diode, a light emitting diode 54, and two third current limiting resistors 551 and 552.
As shown in fig. 7, the LED filament 5 of the fourth embodiment has two terminals 511 and 512 at two ends thereof, the LED filament has two conductive traces 521 and 522 on a substrate thereof, the two conductive traces 521 and 522 are connected to the terminals 511 and 512 through rectifier diodes 531,532, 533 and 534 at two ends thereof, wherein the rectifier diodes 531 and 533 at two ends of one conductive trace 521 are arranged in opposite directions, the rectifier diode 532,534 at two ends of the other conductive trace 522 are arranged in opposite directions, wherein the rectifier diode 531,532 connected to different conductive traces at one terminal 511 is arranged in opposite directions, the rectifier diode 533,534 connected to different conductive traces at the other terminal 512 is arranged in opposite directions, the light emitting diode 54 is connected to the two conductive traces 521 and 522, a third current limiting resistor 551 is connected between one of the terminals 511 and the rectifier diodes 531 and 532 at the terminal 511, and another third current limiting resistor 552 is connected to the other terminal 512 and the rectifier diode 533 at the terminal 512 534, respectively.
The third current limiting resistors 551 and 552 are chip resistors, and the chip resistors are attached to the filament substrate only when the LED chips are attached to the filament substrate in the manufacturing process of the filament, so that the procedure of welding the resistors in the subsequent bulb assembling process is omitted, the production and the processing are convenient, and the manufacturing cost is further reduced.
As shown in fig. 6, the stem 4 is provided with a first lead 411 and a second lead 412, the LED filament 5 is connected between the first lead and the second lead, and the first lead 411 and the second lead 412 are respectively connected to two input ends of the base 1. The first conducting wire 411 or the second conducting wire 412 of the stem can be connected to the lamp cap 1 after being connected to a fourth current limiting resistor. Or, the stem first conducting wire 411 and the stem second conducting wire 412 are respectively connected to a fifth current-limiting resistor and a sixth current-limiting resistor, and then connected to the lamp cap 1.
The bulb shell 2 can also be made of plastic materials, external threads are arranged on the outer side of the lower end of the bulb shell 2, internal threads are arranged on the inner side of the lamp holder 1, and the external threads are in threaded connection with the internal threads. Therefore, the bulb can be easily disassembled when parts need to be replaced, and convenience and rapidness are achieved. The internal and external threads can also be coated with sealant, so that the sealing property of the bulb is improved.
Example five:
the difference between the fifth embodiment and the fourth embodiment is that: and the fourth current-limiting resistor and the core column are fused together to form a core column with a resistor.
Example six:
the difference between the sixth embodiment and the fourth embodiment is that: the stem is provided with a sealing plug, the first lead and the second lead penetrate through the sealing plug and are connected to the lamp holder, the sealing plug is installed at the lower end of the bulb shell, and the outer side wall of the sealing plug is attached to the inner side wall of the bulb shell and is tightly matched in a sealing mode.
The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a no drive power supply LED bulb, its includes lamp holder, cell-shell, first current-limiting resistor, stem and LED filament, the LED filament includes base plate, rectifier diode, emitting diode, its characterized in that:
the LED lamp comprises an LED lamp filament, wherein connecting terminals are arranged at two ends of the LED lamp filament, two conductive circuits are arranged on a substrate of the LED lamp filament, two ends of each conductive circuit are respectively connected to the connecting terminals through rectifier diodes, the rectifier diodes at two ends of the same conductive circuit are arranged in opposite directions, the rectifier diodes connected with different conductive circuits on the same connecting terminal are arranged in opposite directions, and a light emitting diode is connected to the two conductive circuits;
the core column is provided with a first lead and a second lead, the LED filament is connected between the first lead and the second lead, the first lead is connected to the lamp holder after being connected with the first current-limiting resistor, and the second lead is connected to the lamp holder.
2. The LED bulb without the driving power supply according to claim 1, wherein: the lamp also comprises a second current-limiting resistor, and a second lead of the core column is connected to the lamp cap after being connected with a second current-limiting resistor.
3. The LED bulb without the driving power supply as set forth in claim 1, wherein: the first current-limiting resistor and the core column are fused together to form a core column with a resistor.
4. The LED bulb without the driving power supply as recited in claim 1, wherein the stem is provided with a sealing plug, the sealing plug is provided with at least one sealing hole for accommodating a first current-limiting resistor, the first conducting wire is connected to the lamp holder after being connected with the first current-limiting resistor, the second conducting wire penetrates through the sealing plug and is connected to the lamp holder, the sealing plug is installed at the lower end of the bulb shell, and the outer side wall of the sealing plug is attached to and tightly matched with the inner side wall of the bulb shell in a sealing manner.
5. The utility model provides a no drive power supply LED bulb, its includes lamp holder, cell-shell, stem, LED filament, the LED filament includes base plate, rectifier diode, emitting diode, third current-limiting resistor, its characterized in that:
the LED lamp comprises an LED lamp filament, wherein connecting terminals are arranged at two ends of the LED lamp filament, two conductive circuits are arranged on a substrate of the LED lamp filament, two ends of each conductive circuit are respectively connected to the connecting terminals through rectifier diodes, the rectifier diodes at two ends of the same conductive circuit are arranged in opposite directions, the rectifier diodes connected with different conductive circuits on the same connecting terminal are arranged in opposite directions, a light-emitting diode is connected to the two conductive circuits, and at least one third current-limiting resistor is arranged at any position or positions between the connecting terminals and the rectifier diodes, between the rectifier diodes and the conductive circuits or between the conductive circuits and the light-emitting diode and is electrically connected;
the stem is provided with a first lead and a second lead, the LED filament is connected between the first lead and the second lead, and the first lead and the second lead are connected to the lamp holder.
6. The LED bulb without the driving power supply as set forth in claim 5, wherein: the lamp also comprises a fourth current-limiting resistor, and the first lead or the second lead of the core column is connected to the lamp cap after being connected with the fourth current-limiting resistor.
7. The LED bulb without the driving power supply as set forth in claim 6, wherein: and the fourth current-limiting resistor and the core column are fused together to form a core column with a resistor.
8. The LED bulb without the driving power supply as set forth in claim 5, wherein: the lamp also comprises a fifth current-limiting resistor and a sixth current-limiting resistor, wherein the first lead and the second lead of the core column are connected with the lamp cap after being respectively connected with the fifth current-limiting resistor and the sixth current-limiting resistor.
9. The LED bulb without the driving power supply as recited in claim 5, wherein the stem is provided with a sealing plug, the first lead and the second lead penetrate through the sealing plug and are connected to the lamp holder, the sealing plug is installed at the lower end of the bulb shell, and the outer side wall of the sealing plug is attached to the inner side wall of the bulb shell and is tightly matched with the inner side wall of the bulb shell in a sealing manner.
10. The LED bulb without the driving power supply according to claim 1 or claim 5, wherein the bulb shell is made of a plastic material, an external thread is arranged on the outer side of the lower end of the bulb shell, an internal thread is arranged on the inner side of the lamp holder, and the external thread is in threaded connection with the internal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123056680.3U CN216243643U (en) | 2021-12-06 | 2021-12-06 | LED bulb without driving power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123056680.3U CN216243643U (en) | 2021-12-06 | 2021-12-06 | LED bulb without driving power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216243643U true CN216243643U (en) | 2022-04-08 |
Family
ID=80962083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123056680.3U Active CN216243643U (en) | 2021-12-06 | 2021-12-06 | LED bulb without driving power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216243643U (en) |
-
2021
- 2021-12-06 CN CN202123056680.3U patent/CN216243643U/en active Active
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