CN210381403U - LED string lamp with constant brightness - Google Patents
LED string lamp with constant brightness Download PDFInfo
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- CN210381403U CN210381403U CN201920836719.7U CN201920836719U CN210381403U CN 210381403 U CN210381403 U CN 210381403U CN 201920836719 U CN201920836719 U CN 201920836719U CN 210381403 U CN210381403 U CN 210381403U
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Abstract
A constant-brightness LED string lamp belongs to the technical field of LED string lamps. The utility model discloses a plurality of LED banks, two adjacent LED banks parallel connection, and the anodal termination positive wire of LED banks, the negative pole termination negative pole line of LED banks, LED banks includes first lamp cluster, second lamp cluster and constant current module, the positive terminal of first lamp cluster and the positive terminal of second lamp cluster all connect the positive wire, link to each other with the negative pole line through constant current module behind the negative pole termination second lamp cluster of first lamp cluster, constant current module adopts low-voltage constant current pipe or low-voltage constant current chip or discrete device. The utility model discloses simplify the circuit greatly, had the aesthetic property of preferred. The utility model discloses an adopt the constant current module for the electric current that flows through in every LED banks is the same, and the luminance of the LED lamp in every LED banks is also the same, even constantly increase LED banks, the luminance of LED lamp can not change yet, has the advantage that luminance is stable.
Description
Technical Field
The utility model belongs to the technical field of the LED cluster lamp, specifically be a LED cluster lamp that relates to a permanent luminance.
Background
The LED string light is a decorative light, which is formed by connecting LED string lights with the same or different colors in parallel, and is usually used for setting off the atmosphere of festivals, such as Christmas, old soldiers and the like. As shown in fig. 1, the conventional low-voltage LED string lamp generally employs four wires, i.e., a positive wire, a negative wire and two lamp connecting wires. When in connection, a plurality of LED lamps are connected in parallel to form an LED lamp group, then the LED lamp groups are connected in series through lamp connecting wires to form an LED lamp string, and the LED lamp string is connected with a positive wire and a negative wire through the lamp connecting wires; the one end of positive pole line and negative pole line has met preceding binding post jointly, and the other end of positive pole line and negative pole line has met back binding post jointly, and preceding binding post links to each other with the adapter and connects on the commercial power, and back binding post links to each other with another LED lamp cluster. Because the line that LED banks establish ties is longer, produces the pressure drop on the circuit, along LED banks series connection direction, along with the quantity of series connection LED banks constantly increases, the electric current diminishes gradually, and the luminance of the LED lamp of establishing ties at the back is dim gradually, influences decorative effect.
Disclosure of Invention
The utility model discloses solve the technical problem that above-mentioned prior art exists, provide a LED cluster lamp of permanent luminance.
The above technical problem of the present invention can be solved by the following technical solutions: the LED string lamp body is connected between a positive wire and a negative wire, one end of the positive wire and one end of the negative wire are connected with a front connecting terminal, the other end of the positive wire and the other end of the negative wire are connected with a rear connecting terminal, the LED string lamp body comprises a plurality of LED lamp sets, every two LED lamp sets are adjacent to each other, the positive electrode of each LED lamp set is connected with the positive wire in parallel, the negative electrode of each LED lamp set is connected with the negative wire, each LED lamp set comprises a first lamp string, a second lamp string and a constant current module, the positive electrode of the first lamp string and the positive electrode of the second lamp string are connected with the positive wires, the negative electrode of the first lamp string is connected with the negative electrode of the second lamp string and then connected with the negative wire through the constant current module, and the constant current module adopts a low-voltage constant-current tube or a low-voltage constant current chip or a discrete device.
Preferably, when the constant current module is a low-voltage constant current tube, the positive electrode of the low-voltage constant current tube is respectively connected with the negative electrode end of the first lamp string and the negative electrode end of the second lamp string, and the negative electrode of the low-voltage constant current tube is connected with the negative electrode line.
Preferably, when the constant current module is a low-voltage constant current chip, the input end of the low-voltage constant current chip is connected with the positive electrode wire, the output end of the low-voltage constant current chip is respectively connected with the negative electrode end of the first light string and the negative electrode end of the second light string, and the grounding end of the low-voltage constant current chip is connected with the negative electrode wire.
Preferably, when the constant current module is a discrete device, the discrete device includes a resistor R1, a resistor R2, a transistor Q1 and a transistor Q2, one end of the resistor R1 is connected to a collector of the transistor Q1, and a common connection end of the resistor R1 is used as an input end of the discrete device, the input end of the discrete device is respectively connected to a negative electrode end of the first string of lights and a negative electrode end of the second string of lights, the other end of the resistor R1 is respectively connected to a gate of the transistor Q1 and a collector of the transistor Q2, an emitter of the transistor Q1 is respectively connected to a gate of the transistor Q2 and one end of the resistor R2, the other end of the resistor R2 is connected to an emitter of the transistor Q2, and a common connection end of the resistor R2 is used as an.
Preferably, the first light string and the second light string both comprise a plurality of LED lamps connected in series.
Preferably, the LED lamp comprises a lamp body, a light-transmitting cover and a plurality of LED light sources, wherein the LED light sources and the light-transmitting cover are fixedly arranged on the lamp body, and the light-transmitting cover covers the LED light sources.
Preferably, the LED light source adopts LED patch lamp beads or LED straw hat lamp beads or LED lamp filament strips.
Preferably, the LED light source adopts a colored light source.
Preferably, the color of the light-transmitting cover is colorless or the same as that of the LED light source.
The utility model discloses beneficial effect who has: the utility model discloses simplify the circuit greatly, had the aesthetic property of preferred. The utility model discloses an adopt the constant current module for the electric current that flows through in every LED banks is the same, and the luminance of the LED lamp in every LED banks is also the same, even constantly increase LED banks, the luminance of LED lamp can not change yet, has the advantage that luminance is stable.
Drawings
FIG. 1 is a schematic circuit diagram of a prior art low voltage LED string light;
fig. 2 is a schematic circuit diagram of the present invention;
fig. 3 is a schematic structural diagram of the LED lamp of the present invention;
fig. 4 is a schematic circuit diagram of the constant current module of the present invention when it is a low voltage constant current tube;
fig. 5 is a schematic circuit diagram of the low constant current module according to the present invention;
fig. 6 is a schematic circuit diagram of the constant current module according to the present invention when the constant current module is a discrete device.
In the figure: 1. a positive line; 2. a negative electrode line; 3. a front wiring terminal; 4. a rear wiring terminal; 5. an LED lamp group; 6. a first light string; 7. a second light string; 8. a constant current module; 9. an LED lamp; 10. a lamp body; 11. an LED light source; 12. a light-transmitting cover; 13. a lamp connection line; 14. a low-voltage constant current tube; 15. a low-voltage constant-current chip; 16. a discrete device.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example (b): a constant-brightness LED string lamp is shown in figures 2-6 and comprises an LED string lamp body, wherein the LED string lamp body is connected between a positive wire 1 and a negative wire 2, one end of the positive wire 1 and one end of the negative wire 2 are jointly connected with a front connecting terminal 3, the other end of the positive wire 1 and the other end of the negative wire 2 are jointly connected with a rear connecting terminal 4, the front connecting terminal 3 is connected with an adapter and then connected to a mains supply, the rear connecting terminal 4 is connected with the other LED string lamp body, the LED string lamp body comprises a plurality of LED lamp sets 5, two adjacent LED lamp sets 5 are connected in parallel, the positive end of each LED lamp set 5 is connected with the positive wire 1, the negative end of each LED lamp set 5 is connected with the negative wire 2, each LED lamp set 5 comprises a first lamp string 6, a second lamp string 7 and a constant current module 8, the positive end of the first lamp string 6 and the positive end of the second lamp string 7 are both connected with, the negative end of the first lamp string 6 is connected with the negative end of the second lamp string 7 and then is connected with the negative wire 2 through a constant current module 8, and the constant current module 8 adopts a low-voltage constant current tube 14 or a low-voltage constant current chip 15 or a discrete device 16.
When the constant current module 8 adopts the low-voltage constant current tube 14, the positive electrode of the low-voltage constant current tube 14 is respectively connected with the negative electrode end of the first lamp string 6 and the negative electrode end of the second lamp string 7, and the negative electrode of the low-voltage constant current tube 14 is connected with the negative electrode wire 2.
When the constant current module 8 adopts the low-voltage constant current chip 15, the input end of the low-voltage constant current chip 15 is connected with the positive electrode wire 1, the output end of the low-voltage constant current chip 15 is respectively connected with the negative electrode end of the first lamp string 6 and the negative electrode end of the second lamp string 7, and the grounding end of the low-voltage constant current chip 15 is connected with the negative electrode wire 2.
When the constant current module 8 adopts a discrete device 16, the discrete device 16 includes a resistor R1, a resistor R2, a transistor Q1 and a transistor Q2, one end of the resistor R1 is connected to a collector of the transistor Q1, and a common connection end of the resistor R1 is used as an input end of the discrete device 16, an input end of the discrete device 16 is respectively connected to a negative end of the first string 6 and a negative end of the second string 7, the other end of the resistor R1 is respectively connected to a gate of the transistor Q1 and a collector of the transistor Q2, an emitter of the transistor Q1 is respectively connected to a gate of the transistor Q2 and one end of the resistor R2, the other end of the resistor R2 is connected to an emitter of the transistor Q2, and a common connection end of the resistor R2 is used as an output end of the discrete device 16, and.
The first light string 6 and the second light string 7 both comprise a plurality of LED lamps 9 connected in series, the number of the LED lamps 9 can be set according to requirements, for example, 7 LED lamps 9 are connected in series to form an LED light string, in each LED light string, the positive electrode of the first LED lamp 9 is connected with the positive electrode wire 1, the negative electrode of the first LED lamp 9 is connected with the positive electrode of the second LED lamp 9, and so on, the negative electrode of the seventh LED lamp 9 is connected with the constant current module 8.
The LED lamp 9 comprises a lamp body 10, a light-transmitting cover 12 and a plurality of LED light sources 11, wherein the LED light sources 11 and the light-transmitting cover 12 are fixedly mounted on the lamp body 10, and the light-transmitting cover 12 covers the LED light sources 11. The number of the LED light sources 11 can be one or more, and the LED light sources 11 adopt LED surface mount lamp beads or LED straw hat lamp beads or LED lamp filament strips; the LED light source 11 is a colored light source, and the color of the light source can be white, red, yellow, and other colors. The color of the light-transmitting cover 12 is colorless or the same as the light color of the LED light source 11.
The utility model discloses simplify the circuit greatly, had the aesthetic property of preferred. The utility model discloses an adopt the constant current module for the electric current that flows through in every LED banks is the same, and the luminance of the LED lamp in every LED banks is also the same, even constantly increase LED banks, the luminance of LED lamp can not change yet, has the advantage that luminance is stable.
Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above-described embodiments, and many modifications are possible. Any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should be considered as belonging to the protection scope of the present invention.
Claims (9)
1. The utility model provides a LED cluster lamp of permanent luminance, includes the LED cluster lamp body, this body coupling of LED cluster lamp is between positive polar line and negative pole line, the one end of positive polar line and negative pole line has met binding post before jointly, the other end of positive polar line and negative pole line has met back binding post, its characterized in that jointly: the LED string light body comprises a plurality of LED light groups, the adjacent LED light groups are connected in parallel, the positive electrode of each LED light group is connected with a positive electrode wire, the negative electrode of each LED light group is connected with a negative electrode wire, each LED light group comprises a first light string, a second light string and a constant current module, the positive electrode end of each first light string and the positive electrode end of each second light string are connected with the positive electrode wires, the negative electrode of each first light string is connected with the negative electrode wire through the constant current module after being connected with the negative electrode end of each second light string, and the constant current module adopts a low-voltage constant current tube or a low-voltage constant current chip or a discrete device.
2. The constant brightness LED string light of claim 1, wherein when the constant current module is a low voltage constant current tube, the positive electrode of the low voltage constant current tube is connected to the negative electrode of the first string light and the negative electrode of the second string light, respectively, and the negative electrode of the low voltage constant current tube is connected to the negative electrode line.
3. The constant-brightness LED string lamp of claim 1, wherein when the constant current module is a low-voltage constant current chip, an input terminal of the low-voltage constant current chip is connected to a positive line, an output terminal of the low-voltage constant current chip is respectively connected to a negative terminal of the first string lamp and a negative terminal of the second string lamp, and a ground terminal of the low-voltage constant current chip is connected to a negative line.
4. The constant brightness LED string light according to claim 1, wherein when the constant current module is a discrete device, the discrete device includes a resistor R1, a resistor R2, a transistor Q1 and a transistor Q2, one end of the resistor R1 is connected to the collector of the transistor Q1, and the common connection end of the resistor R1 is used as the input end of the discrete device, the input ends of the discrete device are respectively connected to the negative ends of the first string light and the second string light, the other end of the resistor R1 is connected to the gate of the transistor Q1 and the collector of the transistor Q2, the emitters of the transistor Q1 are respectively connected to the gate of the transistor Q2 and one end of the resistor R2, the other end of the resistor R2 is connected to the emitter of the transistor Q2, and the common connection end of the resistor R2 is used as the output end of the discrete device, and the output end of the.
5. The constant brightness LED string light according to any one of claims 1-4, wherein the first string light and the second string light each comprise a plurality of LED lights connected in series.
6. The LED string light with constant brightness according to claim 5, wherein the LED light comprises a light body, a transparent cover and a plurality of LED light sources, the LED light sources and the transparent cover are both fixedly mounted on the light body, and the transparent cover covers the LED light sources.
7. The LED string light with constant brightness according to claim 6, wherein the LED light source is an LED patch light bead, an LED straw hat light bead or an LED light strip.
8. A constant brightness LED string light as claimed in claim 6, wherein the LED light source is a colored light source.
9. The LED string light with constant brightness according to claim 6, wherein the color of the light-transmitting cover is colorless or the same as the color of the LED light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920836719.7U CN210381403U (en) | 2019-06-04 | 2019-06-04 | LED string lamp with constant brightness |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920836719.7U CN210381403U (en) | 2019-06-04 | 2019-06-04 | LED string lamp with constant brightness |
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| CN210381403U true CN210381403U (en) | 2020-04-21 |
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| CN201920836719.7U Active CN210381403U (en) | 2019-06-04 | 2019-06-04 | LED string lamp with constant brightness |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110234189A (en) * | 2019-06-04 | 2019-09-13 | 浙江阳光美加照明有限公司 | An a kind of LED cluster of lamps, ornamental for perseverance brightness |
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2019
- 2019-06-04 CN CN201920836719.7U patent/CN210381403U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110234189A (en) * | 2019-06-04 | 2019-09-13 | 浙江阳光美加照明有限公司 | An a kind of LED cluster of lamps, ornamental for perseverance brightness |
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