CN215001033U

CN215001033U - LED lamp

Info

Publication number: CN215001033U
Application number: CN202121362378.8U
Authority: CN
Inventors: 李佳伟
Original assignee: Life Sunshine Guangzhou Great Health Development Co ltd
Current assignee: Life sunshine (Guangzhou) Biotechnology Co.,Ltd.
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2021-12-03
Anticipated expiration: 2031-06-18

Abstract

The utility model particularly discloses a LED lamp, which comprises a lampshade and a lamp holder which are connected in a sealing way; a light-emitting component which does not need rectification is arranged between the lampshade and the lamp holder; the rectification-free light-emitting component comprises a support frame; the bottom of the support frame is clamped with a PCB; the lower surface of the PCB is electrically connected with a voltage reduction capacitor and a plurality of LED lamp beads connected in parallel or in series; a first lead used for being connected with a live wire and a second lead used for being connected with a zero line are respectively arranged on the PCB; the first lead is connected with a voltage reduction resistor in series; the voltage reduction resistor, the voltage reduction capacitor and the LED lamp beads are connected in series; each LED lamp bead comprises a forward conduction LED chip and a reverse conduction LED chip which are packaged in a reverse parallel connection mode. The utility model discloses retrench the inside components and parts of lamps and lanterns, need not rectifier element, the cost is reduced has reduced the circuit volume, has simplified technology, has improved production efficiency.

Description

LED lamp

Technical Field

The utility model relates to the field of electronic technology, concretely relates to LED lamp.

Background

With the development of economic society and the improvement of LED technology, LED lamps have been widely used in daily life of people, and LED lighting devices have been increasingly used in various outdoor occasions, such as outdoor landscape lighting, lighting, and large building lighting. At present, most of LEDs adopted in the market are supplied with direct current, and because LED chips belong to semiconductor devices which are conducted in a single direction and have requirements on polarity, the LED chips are not similar to common incandescent bulbs and can be directly connected with alternating current, and the current direction on an alternating current circuit is uncertain at each moment, the driving circuit of the LED needs to be rectified. Therefore, a complicated conversion circuit needs to be designed, and rectifier elements such as a rectifier bridge and the like are added in the circuit, so that the problems of large size, high cost, complex process and the like are caused, and the requirements on the size and the cost are more sensitive particularly for small-sized LED lamps.

SUMMERY OF THE UTILITY MODEL

To the defect that the transform circuit design that exists is complicated, bulky, production efficiency is low among the above-mentioned background art, the utility model provides a LED lamps and lanterns are used for overcoming above-mentioned defect.

An LED lamp comprises a lampshade and a lamp holder which are connected in a sealing way; a light-emitting component which does not need rectification is arranged between the lampshade and the lamp holder; the rectification-free light-emitting component comprises a support frame; the bottom of the support frame is clamped with a PCB; the lower surface of the PCB is electrically connected with a voltage reduction capacitor and a plurality of LED lamp beads connected in parallel or in series; a first lead used for being connected with a live wire and a second lead used for being connected with a zero line are respectively arranged on the PCB; the first lead is connected with a voltage reduction resistor in series; the voltage reduction resistor, the voltage reduction capacitor and the LED lamp beads are connected in series; each LED lamp bead comprises a forward conduction LED chip and a reverse conduction LED chip which are packaged in a reverse parallel connection mode.

As the preferred scheme, a plurality of LED lamp beads are connected in series or in parallel.

Preferably, the lampshade comprises a high-light-transmission plastic lampshade body; an installation seat is arranged at the opening of the high-light-transmission plastic cover body; the support frame joint install in on the mount pad.

Preferably, the lamp cap is hermetically connected with the mounting base; the outer wall of the lamp holder is provided with a metal spiral sleeve; and one end of the lamp cap, which is far away from the lampshade, is provided with a conductive contact.

Preferably, the first wire comprises a first power supply end; the first power end is electrically connected with the conductive contact on the lamp holder; the conductive contact is used for being connected with a live wire of a mains supply.

Preferably, the first wire further includes a first connection end; the first connecting end is electrically connected with the input pole of the PCB.

Preferably, the second wire comprises a second power supply end; the second power supply end is bent and lapped on the edge of the support frame; the second power supply end is electrically connected with the metal spiral sleeve; the metal spiral sleeve is used for being connected with a zero line of commercial power.

Preferably, the second lead further comprises a second connection end; the second connecting end is electrically connected with the output electrode of the PCB.

Preferably, the voltage reduction resistor is arranged on the inner side of the support frame, and part of the voltage reduction resistor is exposed and extends out of the top of the support frame.

As a preferred scheme, the PCB is also electrically connected with a safety resistor; the safety resistor is arranged on the inner side of the support frame; the safety resistor is connected with the voltage reduction resistor in series.

Has the advantages that: the utility model adopts a light-emitting component without rectification, firstly, when the lamp is connected with the commercial power, if the alternating current is conducted in the forward direction, the LED chip is conducted in the forward direction to emit light, and the LED chip is conducted in the reverse direction to be not conducted and not emit light; if the alternating current is conducted reversely, the LED chip is conducted to emit light when the alternating current is conducted reversely, the LED chip is conducted to the forward direction and does not emit light when the alternating current is conducted, and the LED lamp bead can keep a normally bright state when the alternating current is conducted by naked eyes due to the extremely high current switching speed, so that a rectifying circuit does not need to be added into a circuit; secondly, the voltage reduction resistor, the voltage reduction capacitor and the LED lamp beads are connected in series, the voltage reduction resistor and the voltage reduction capacitor play roles in voltage reduction and current limitation in the circuit, and the structure can ensure that the current of the LED lamp beads in the alternating current circuit does not exceed a limit value and can be normally used (wherein the voltage reduction capacitor can be deleted according to actual needs); the utility model discloses retrench the inside components and parts of lamps and lanterns, need not rectifier element, the cost is reduced has reduced the circuit volume, has simplified technology, has improved production efficiency.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an explosion structure diagram of the present invention.

Fig. 3 is a schematic structural view of the rectifying-free light-emitting device of the present invention.

Fig. 4 is a partial schematic view of the light emitting device without rectification according to the present invention.

Fig. 5 is a circuit diagram of the preferred embodiment of the present invention (LED lamp beads are connected in parallel).

Fig. 6 is a circuit diagram (LED lamp bead series connection) of another embodiment of the present invention.

In the figure: 1-a lampshade; 2-a lamp holder; 3-no need of rectifying light-emitting component; 11-high light transmission plastic cover body; 12-a mounting seat; 21-a metal spiral casing; 22-conductive contacts; 31-a support frame; 32-a PCB board; 33-a first wire; 34-a voltage reduction resistor; 35-a second conductive line; 36-a safety resistor; 37-a step-down capacitor; 38-LED lamp beads; 331-a first power supply terminal; 332-a first connection end; 351-a second power supply terminal; 352-second connection end; 381-reverse conducting the LED chip; 382-forward conducting the LED chip.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

In the present invention, it should be noted that the terms "upper (top)", "lower (bottom)", "inner", "outer", "far away", "close" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present invention; the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means at least two unless explicitly stated or limited otherwise; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 6, the utility model provides an LED lamp, which comprises a lampshade 1 and a lamp holder 2 which are hermetically connected; a light-emitting component 3 which does not need rectification is arranged between the lampshade 1 and the lamp holder 2; the rectification-free light-emitting component 3 comprises a support frame 31; the bottom of the support frame 31 is clamped with a PCB (printed circuit board) 32; the lower surface of the PCB 32 is electrically connected with a voltage reduction capacitor 37 and a plurality of LED lamp beads 38; a first lead 33 used for being connected with a live wire and a second lead 35 used for being connected with a zero wire are respectively arranged on the PCB 32; a voltage reduction resistor 34 is connected to the first lead 33 in series; the voltage reduction resistor 34, the voltage reduction capacitor 37 and the LED lamp bead 38 are connected in series; each LED lamp bead 38 comprises a forward conducting LED chip 382 and a reverse conducting LED chip 381 which are packaged in a reverse parallel connection manner; the utility model adopts the structure that the rectification light-emitting component 3 is not needed, firstly, when the lamp is connected with the commercial power, if the alternating current is conducted in the forward direction, the forward conduction LED chip 382 is conducted to emit light, and the reverse conduction LED chip 381 is not conducted to emit light; if the alternating current is conducted in the reverse direction, the reverse conduction LED chip 381 is conducted to emit light, and the forward conduction LED chip 382 is not conducted to emit light, so that the current switching speed is very fast, and the LED lamp bead 38 keeps a normally-on state when being electrified, so that a rectifying circuit does not need to be added in the circuit; secondly, the voltage reduction resistor 34, the voltage reduction capacitor 37 and the LED lamp bead 38 are connected in series, the voltage reduction resistor 34 and the voltage reduction capacitor 37 both have the functions of voltage reduction and current limitation in the circuit, and by adopting the structure, the current of the LED lamp bead 38 in an alternating current circuit can not exceed a limit value, and the LED lamp bead can be normally used (wherein the voltage reduction capacitor can be deleted according to actual needs); the utility model discloses retrench the inside components and parts of lamps and lanterns, need not rectifier element, the cost is reduced has reduced the circuit volume, has simplified technology, has improved production efficiency, and wherein, step-down resistance 34, first wire 33 and second wire 35 can be kept apart simultaneously to support frame 31, and then play the effect that prevents the short circuit.

In some embodiments of the present invention, the lamp housing 1 comprises a highly light transmissive plastic housing 11; an opening of the high-light-transmission plastic cover body 11 is provided with a mounting seat 12; the support frame 31 is clamped and mounted on the mounting base 12; by adopting the structure, the high-light-transmission plastic cover body 11 is beneficial to improving the anti-falling performance of the lamp, open fire can be avoided in the production process, and the cover body 11 and the mounting seat 12 can be integrally formed by blow molding.

In some embodiments of the present invention, the lamp cap 2 is hermetically connected to the mounting base 12, and the waterproof grade of the LED lamp can be effectively improved by adopting the structure; the outer wall of the lamp holder 2 is provided with a metal spiral sleeve 21; the lamp cap 2 is provided with a conductive contact 22 at one end away from the lampshade 1.

In some embodiments of the present invention, in a specific example of the present invention, the first wire 33 includes a first power end 331; the first power terminal 331 is electrically connected to the conductive contact 22 on the lamp cap 2; the conductive contact 22 is used for connecting with a live wire of a mains supply; the first wire 33 further includes a first connection end 332; the first connection terminal 332 is electrically connected to the input terminal of the PCB board 32.

In some embodiments of the present invention, the second conductive line 35 comprises a second power source end 351; the second power end 351 is bent and lapped on the edge of the support frame 31; the second power end 351 is electrically connected with the metal spiral sleeve 21; the metal spiral sleeve 21 is used for being connected with a zero line of commercial power; the second wire 35 further includes a second connection end 352; the second connection terminal 352 is electrically connected to an output terminal of the PCB board 32.

The utility model discloses an in some embodiments, the inboard of support frame 31 is arranged in to step-down resistance 34, just the part of step-down resistance 34 exposes the top that extends support frame 31, adopts this structure for distance between step-down resistance 34 and the PCB board 32 keeps position far away, thereby avoids both can't in time transmit to the external world and damage inside components and parts at the produced heat of during operation.

In some embodiments of the present invention, a safety resistor 36 is electrically connected to the PCB 32; the safety resistor 36 is arranged inside the support frame 31; the safety resistor 36 is connected in series with the voltage reduction resistor 34, and by adopting the structure, the overload and short circuit protection effects can be achieved.

In some examples of the present invention, referring to fig. 5, a plurality of said LED lamp beads 38 are connected in parallel.

In another embodiment of the present invention, referring to fig. 6, a plurality of the LED lamp beads 38 are connected in series.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An LED lamp comprises a lampshade and a lamp holder which are connected in a sealing way; the method is characterized in that:

a light-emitting component which does not need rectification is arranged between the lampshade and the lamp holder; the rectification-free light-emitting component comprises a support frame; the bottom of the support frame is clamped with a PCB; the lower surface of the PCB is electrically connected with a voltage reduction capacitor and a plurality of LED lamp beads connected in parallel or in series; a first lead used for being connected with a live wire and a second lead used for being connected with a zero line are respectively arranged on the PCB; the first lead is connected with a voltage reduction resistor in series; the voltage reduction resistor, the voltage reduction capacitor and the LED lamp beads are connected in series; each LED lamp bead comprises a forward conduction LED chip and a reverse conduction LED chip which are packaged in a reverse parallel connection mode.

2. The LED lamp according to claim 1, wherein a plurality of the LED beads are connected in series or in parallel.

3. The LED lamp of claim 1, wherein the housing comprises a highly light transmissive plastic housing; an installation seat is arranged at the opening of the high-light-transmission plastic cover body; the support frame joint install in on the mount pad.

4. The LED lamp according to claim 1, wherein the lamp cap is hermetically connected with the mounting base; the outer wall of the lamp holder is provided with a metal spiral sleeve; and one end of the lamp cap, which is far away from the lampshade, is provided with a conductive contact.

5. The LED lamp of claim 4, wherein the first wire comprises a first power end; the first power end is electrically connected with the conductive contact on the lamp holder; the conductive contact is used for being connected with a live wire of a mains supply.

6. The LED lamp of claim 5, wherein the first wire further comprises a first connection end; the first connecting end is electrically connected with the input pole of the PCB.

7. The LED lamp of claim 4, wherein the second wire comprises a second power terminal; the second power supply end is bent and lapped on the edge of the support frame; the second power supply end is electrically connected with the metal spiral sleeve; the metal spiral sleeve is used for being connected with a zero line of commercial power.

8. The LED light fixture of claim 7 wherein said second wire further includes a second connection end; the second connecting end is electrically connected with the output electrode of the PCB.

9. The LED lamp of claim 1, wherein the voltage dropping resistor is disposed inside the supporting frame, and a portion of the voltage dropping resistor is exposed to extend out of the top of the supporting frame.

10. The LED lamp according to claim 1, wherein a safety resistor is electrically connected to the PCB; the safety resistor is arranged on the inner side of the support frame; the safety resistor is connected with the voltage reduction resistor in series.