CN217721530U - LED lamp with adjustable color temperature - Google Patents
LED lamp with adjustable color temperature Download PDFInfo
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- CN217721530U CN217721530U CN202221570177.1U CN202221570177U CN217721530U CN 217721530 U CN217721530 U CN 217721530U CN 202221570177 U CN202221570177 U CN 202221570177U CN 217721530 U CN217721530 U CN 217721530U
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- led lamp
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Abstract
The utility model relates to a LED lamp field discloses a LED lamp of adjustable colour temperature, include: the LED lamp comprises a lamp panel, wherein a linear constant current control chip, an LED lamp group and a first resistor are arranged on the front side of the lamp panel; the circuit board is connected to the back face of the lamp panel, a color temperature control chip, a second resistor and a capacitor are arranged on the circuit board, the second resistor and the capacitor are located on the front face of the circuit board, and the color temperature control chip is located on the back face of the circuit board; electric connection forms the luminescent circuit of adjustable colour temperature between linear constant current control chip, LED banks, colour temperature control chip, first resistance, second resistance and the electric capacity, compares with prior art, the beneficial effects of the utility model are that: the linear constant current control chip and the color temperature control chip are arranged to be matched with other electronic elements, so that the color temperature of light modulation is realized, the driving effect is high, and the constant current performance is better.
Description
Technical Field
The utility model relates to a LED lamp field especially relates to a LED lamp of adjustable colour temperature.
Background
The LED bulb is a solid semiconductor device capable of converting electric energy into visible light, electricity can be directly converted into light, a lamp panel is required to be arranged inside the LED bulb to install an LED lamp and other electronic elements, on the basis, if the function of adjusting color temperature is to be added, a circuit for correspondingly controlling color temperature is required to be added, the internal space of the bulb is not fully utilized by the LED bulb with the function of adjusting color temperature, and the LED lamp and other electronic elements are arranged at relatively concentrated positions, so that heat is generated, and the service life of a product is shortened.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes the above insufficiency, and aims to provide a technical scheme which can solve the above problems.
A color temperature adjustable LED lamp comprising: the LED lamp comprises a lamp panel, wherein a linear constant current control chip, an LED lamp group and a first resistor are arranged on the front side of the lamp panel; the circuit board is connected to the back face of the lamp panel, a color temperature control chip, a second resistor and a capacitor are arranged on the circuit board, the second resistor and the capacitor are located on the front face of the circuit board, and the color temperature control chip is located on the back face of the circuit board; the linear constant-current control chip, the LED lamp set, the color temperature control chip, the first resistor, the second resistor and the capacitor are electrically connected to form the light-emitting circuit with the adjustable color temperature.
Compared with the prior art, the beneficial effects of the utility model are that: thereby set up other electronic component of linear constant current control chip and color temperature control chip cooperation and realize the color temperature of adjusting luminance, the drive effect is high, there is better constant current performance, the utility model discloses set up the region that the linear constant current control chip vacates at LED banks center, resistance, electric capacity setting are kept away from to the color temperature control chip, reasonable circuit layout and make full use of bulb inner space, be favorable to the heat dissipation, the one end broad of circuit board, ensure to be connected with the lamp plate can be stable, the other end of circuit board is then the design of making for adaptation bulb casing, expanded the circuit board promptly and let the circuit board paste the inboard that leans on in bulb casing again, make it be difficult to take place the skew.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is the structure schematic diagram of the lamp panel of the utility model.
Fig. 2 is a schematic structural diagram of the front side of the circuit board of the present invention.
Fig. 3 is a schematic structural diagram of the back surface of the circuit board according to the present invention.
Fig. 4 is a schematic structural diagram of the present invention.
Fig. 5 is a circuit diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, in an embodiment of the present invention, an LED lamp with adjustable color temperature includes: the lamp panel 1 and the circuit board 2, the lamp panel 1 is circular, one end of the circuit board 2 is vertically connected to a symmetry axis of the lamp panel 1, one end of the circuit board 2, far away from the lamp panel 1, is narrower than the other end, namely the end face area of one end of the circuit board 2 is large (compared with the narrow end), so that the circuit board 2 can be stably connected with the lamp panel 1, and the narrow end of the circuit board 2 is designed to be matched with the inner side of the bulb shell, so that the circuit board can be attached to the inner side of the bulb shell during installation;
the lamp panel 1, be equipped with linear constant current control chip U1 on the front of lamp panel 1, LED banks 5 and first resistance 4, wherein, LED banks 5 includes high colour Wen Dengzu and low colour temperature banks 52, high colour Wen Dengzu is formed by connecting in series a plurality of high colour Wen Dengpian, low colour temperature banks 52 is formed by connecting in series a plurality of low colour temperature lamp piece 521, a plurality of high colour Wen Dengpian and a plurality of low colour temperature lamp piece 521 are the annular alternative setting, linear constant current control chip U1 and first resistance 4 are then located the central region at a plurality of high colour Wen Dengpian and a plurality of low colour temperature lamp piece 521 that are the annular setting, first resistance 4 includes: a resistor R2, a resistor R3 and a resistor R4;
the LED lamp comprises a linear constant-current control chip U1, a plurality of high-color Wen Dengpian 511, a plurality of low-color-temperature lamp pieces 521, a color-temperature control chip U2, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor RS1, a piezoresistor RV1, a capacitor EC1, a capacitor C2, a rectifier bridge DB1, a fuse F1 and a diode D1, wherein the linear constant-current control chip U1, the plurality of high-color Wen Dengpian, the plurality of low-color-temperature lamp pieces 521, the resistor R1, the rectifier bridge DB1, the fuse F1 and the diode D1 are electrically connected to form a light-emitting circuit with adjustable color temperature; specifically, the narrow end of the circuit board 2 is equipped with a connection terminal 12 and is used for connecting a zero line N and a live line L of an external line, the linear constant current control chip U1 has eight pins, the color temperature control chip U2 has eight pins, please refer to fig. 5, the live line L is connected with a fuse F1, a rectifier bridge DB1, a piezoresistor RV1, the linear constant current control chip U1, a diode D1, the color temperature control chip U2, and the LED lamp group 5 in sequence, the color temperature control chip U2 is connected with the zero line N, wherein, the positive pole of the piezoresistor RV1 is connected with the live line L, the negative pole is connected with the ground line, the fifth pin (TRAIC) of the linear constant current control chip U1 is connected with the live line L between the piezoresistor RV1 and the diode D1, a resistor R6 is connected with a line between the fifth pin (TRAIC) and the live line L of the linear constant current control chip U1, the second pin (REXT 1), the third pin (REXT) and the ninth pin (regnd) of the linear constant current control chip U1 are connected, the second pin (REXT 1) and the ninth pin (REXT 1) of the linear constant current control chip U1 are connected with the seventh pin (reut), the first pin (REXT) of the linear constant current control chip U1 is connected with the fourth pin (OUT) of the linear constant current control chip U1, the first pin (revt) and the fourth pin (OUT) are connected with the first pin (RS 1, the first pin (OUT) of the linear constant current control chip U1), the first pin (VCC) and the fourth pin (ICGND) of the color temperature control chip U2 are connected to a live wire L (through a diode D1), a resistor R4 is connected to a line between the first pin (VCC) and the live wire L of the color temperature control chip U2, a capacitor EC1 is connected to a line between the fourth pin (ICGND) and the live wire L, a resistor R5 is connected in parallel to a line of the capacitor EC1, a capacitor C2 is connected to a line between the first pin (VCC) and the fourth pin (ICGND) of the color temperature control chip U2, a high color Wen Dengzu is formed by connecting a plurality of high color 3252 zxft 32511 in series, a low color temperature lamp group 52 is formed by connecting a plurality of low color temperature lamp chips 521 in series, the anode of a high color 3532 zxft 3551 is connected to the live wire L (through a diode D1), the cathode of the high color temperature lamp group 51 is connected to a seventh pin (D1) and an eighth pin (D1) of the color temperature control chip U2, the anode of the low color temperature lamp group 52 is connected to (via a diode D1) the live wire L, the cathode of the low color temperature lamp group 52 is connected to a fifth pin (D2) and a sixth pin (D2) of the color temperature control chip U2, the high color Wen Dengzu is connected in parallel with the low color temperature lamp group 52, the second pin (CLK) of the color temperature control chip U2 is connected to the resistor R3, the resistor 3 is connected to the neutral wire N, the linear constant current control chip U1 has the model of SM2196EJ, and has the over-temperature adjusting function, so that the circuit is more stable, the color temperature control chip U2 has the model of S4225MB, so that the peripheral circuit structure can be simplified to the greatest extent, and the cost is reduced.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented 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.
Claims (7)
1. An LED lamp capable of adjusting color temperature, comprising:
the LED lamp comprises a lamp panel, wherein a linear constant current control chip, an LED lamp group and a first resistor are arranged on the front side of the lamp panel;
the circuit board is connected to the back face of the lamp panel, a color temperature control chip, a second resistor and a capacitor are arranged on the circuit board, the second resistor and the capacitor are located on the front face of the circuit board, and the color temperature control chip is located on the back face of the circuit board;
the linear constant-current control chip, the LED lamp set, the color temperature control chip, the first resistor, the second resistor and the capacitor are electrically connected to form the light-emitting circuit with the adjustable color temperature.
2. The LED lamp of claim 1, wherein: the LED lamp bank comprises a high-color-temperature lamp bank and a low-color-temperature lamp bank, wherein the high-color-temperature lamp bank is formed by connecting a plurality of high-color Wen Dengpian in series, and the low-color-temperature lamp bank is formed by connecting a plurality of low-color-temperature lamp sheets in series.
3. The LED lamp of claim 2, wherein: the high-color Wen Dengpian and the low-color-temperature lamp pieces are arranged alternately in a ring shape.
4. The LED lamp of claim 1, wherein: still include the rectifier bridge, the rectifier bridge sets up the front of circuit board and with emitting circuit electric connection.
5. The LED lamp of claim 1, wherein: the LED lamp further comprises a fuse, wherein the fuse is arranged on the front face of the circuit board and electrically connected with the light-emitting circuit.
6. The LED lamp of claim 1, wherein: the LED is arranged on the front face of the circuit board and electrically connected with the light-emitting circuit.
7. The LED lamp of claim 1, wherein: the lamp plate is circular, the one end of circuit board is connected perpendicularly on the symmetry axis of lamp plate, the circuit board is kept away from the one end of lamp plate is narrower than the other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221570177.1U CN217721530U (en) | 2022-06-22 | 2022-06-22 | LED lamp with adjustable color temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221570177.1U CN217721530U (en) | 2022-06-22 | 2022-06-22 | LED lamp with adjustable color temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217721530U true CN217721530U (en) | 2022-11-01 |
Family
ID=83775358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221570177.1U Active CN217721530U (en) | 2022-06-22 | 2022-06-22 | LED lamp with adjustable color temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217721530U (en) |
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2022
- 2022-06-22 CN CN202221570177.1U patent/CN217721530U/en active Active
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