CN202791882U - LED bar-shaped circuit board and bar shaped lamp - Google Patents
LED bar-shaped circuit board and bar shaped lamp Download PDFInfo
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- CN202791882U CN202791882U CN2012200566364U CN201220056636U CN202791882U CN 202791882 U CN202791882 U CN 202791882U CN 2012200566364 U CN2012200566364 U CN 2012200566364U CN 201220056636 U CN201220056636 U CN 201220056636U CN 202791882 U CN202791882 U CN 202791882U
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- led
- circuit plate
- mount pad
- strip circuit
- electric capacity
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Abstract
The utility model discloses an LED bar-shaped circuit board which is connected with an integrated circuit constant current unit, wherein the integrated circuit constant current unit is connected with a direct current filtering unit, multiple LED installation seats which are in series connection are arranged on the LED bar-shaped circuit board, LED spot light sources or 0omega resistors are mounted on the LED installation seats, adjacent LED installation seats which are provided with the LED spot light sources are equally arranged at an interval, the interval equals to the sum of the distance between an LED installation seat which is provided with an LED spot light source and is arranged at the far left end and the left end of the LED bar-shaped circuit board and the distance between an LED installation seat which is provided with an LED spot light source and is arranged at the far right end and the right end of the LED bar-shaped circuit board, and the two ends of the LED bar-shaped circuit board are provided with fasteners which match with each other. The LED bar-shaped circuit board and the bar shaped lamp in the utility model are characterized in that the LED bar-shaped circuit board and the bar shaped lamp can be driven through an IC constant current, and length can be increased and decreased as required.
Description
Technical field
The utility model relates to lighting field, more particularly, relates to a kind of LED strip circuit plate and strip lamp.
Background technology
Existing strip lamp owing to there is not the length of standard, much all is to determine length according to customer demand.So mostly adopt the constant voltage source power supply, and LED has determined that by its characteristic it relatively is fit to constant current and drives.So constant voltage source can not directly be received on the LED, must be through constant current.Current constant mode relatively more commonly used has resistance constant current and IC constant current (IC constant current here can be called the integrated circuit constant current again) at present, but all there is its shortcoming in above dual mode.
The shortcoming of resistance constant current:
1), greatly power consumption is on resistance, efficient is low;
2), because the pressure drop VF value scope of LED is wider, so constant current accuracy is poor.
The shortcoming of IC constant current:
1), Length Ratio is more fixing, be inconvenient to lengthen or shorten.
The utility model content
The technical problems to be solved in the utility model is, be inconvenient to lengthen or the defective such as shortens for IC constant current length in the prior art is fixing, provides a kind of by IC constant current driving and can carry out according to demand LED strip circuit plate and the strip lamp that length increases and decreases.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of LED strip circuit plate is provided, be connected with integrated circuit constant current unit, described integrated circuit constant current unit is connected with the DC filtering unit, described LED strip circuit plate is provided with the LED mount pad of a plurality of mutual series connection, in LED spot light or the 0 Ω resistance one all is installed on each described LED mount pad, and distance equates between the adjacent described LED mount pad that the LED spot light is installed, the described LED mount pad that the LED spot light is installed that this distance equals high order end to the described LED mount pad that the LED spot light is installed of the distance of described LED strip circuit plate left end and low order end arrive described LED strip circuit plate right-hand member apart from sum;
Described LED strip circuit plate two ends are provided with the fastener of mutual coupling.
In LED strip circuit plate described in the utility model, described LED mount pad comprises a LED mount pad, the 2nd LED mount pad and the 3rd LED mount pad, in a described LED mount pad, the 2nd LED mount pad and the 3rd LED mount pad any one is equipped with the LED spot light, then other two kinds 0 Ω resistance is installed.
In LED strip circuit plate described in the utility model, described integrated circuit constant current unit comprises integrated circuit, the first resistance, inductance, the 5th diode, the first electric capacity and the second electric capacity; Described integrated circuit is provided with switch terminals, earth terminal, empty pin, current sample end and voltage input end;
Described switch terminals connects the negative pole of described LED strip circuit plate by described inductance, described current sample end connects the positive pole of described LED strip circuit plate, described voltage input end connects the output of described DC filtering unit, described the first resistance two ends connect respectively described voltage input end and current sample end, described empty pin is by described the first capacity earth, and described the second electric capacity two ends connect respectively the negative pole of described voltage input end and described strip circuit plate; Described the 5th diode cathode connects described switch terminals, and negative pole connects described voltage input end.
In LED strip circuit plate described in the utility model, described integrated circuit constant current unit also comprises the second resistance, and described the second resistance is in parallel with described the first resistance.
In LED strip circuit plate described in the utility model, the model of described integrated circuit U1 is SD42525.
In LED strip circuit plate described in the utility model, described DC filtering unit is connected with power supply, and described DC filtering unit comprises the first diode, the second diode, the 3rd diode, the 4th diode and the 3rd electric capacity;
The negative pole of described the first diode connects described positive source and its minus earth, the positive pole of described the second diode connects the output that described positive source and its negative pole connect described DC filtering unit, the positive pole of described the 3rd diode connects the output that described power cathode and its negative pole connect described DC filtering unit, the negative pole of described the 4th diode connects described power cathode and its minus earth, and described the 3rd electric capacity two ends are ground connection and the output that is connected described DC filtering unit respectively.
In LED strip circuit plate described in the utility model, described DC filtering unit also comprises the 4th electric capacity, the 5th electric capacity and the 6th electric capacity, and described the 4th electric capacity, the 5th electric capacity and the 6th electric capacity are connected in parallel on respectively the two ends of described the 3rd electric capacity.
The utility model also provides a kind of strip lamp that is provided with described LED strip circuit plate, comprise lamp casing, two or more than two described LED strip circuit plate is interlockingly connected by described fastener, forms the LED lamp plate, and it is inner that described LED lamp plate is installed in described lamp casing;
Carry out conducting by wire between the described LED strip circuit plate.
In strip lamp described in the utility model, described strip lamp comprises that also splicing is at the hollow plate at described LED lamp plate two ends.
LED strip circuit plate of the present utility model and strip lamp have following beneficial effect: on the LED strip circuit plate LED mount pad is set, be used for installing LED spot light or 0 Ω resistance, when assembling, can adjust according to actual conditions the position of LED spot light, and correspondingly adjust the power of whole LED strip circuit plate according to the number of increase and decrease LED spot light; Simultaneously, distance between the adjacent LED mount pad that the LED spot light is installed equates, and the described LED mount pad that the LED spot light is installed that equals high order end to the described LED mount pad that the LED spot light is installed of the distance of described LED strip circuit plate left end and low order end to described LED strip circuit plate right-hand member apart from sum, so that when a plurality of LED strip circuit plates spliced and be used for strip lamp, the distance between the LED spot light still equated; Carry out snapping by described fastener between the described LED strip circuit plate, and carry out conducting by wire, solved that traditional IC constant current length is fixed and the problem that when needing the strip lamp of different length, need to design separately respectively its LED strip circuit plate.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the circuit diagram according to an embodiment of the utility model LED strip circuit plate;
Fig. 2 is the theory diagram according to the utility model LED mount pad annexation;
Fig. 3 A, 3B are the PCB figure according to an embodiment of the utility model LED strip circuit plate;
Fig. 4 is according to the spliced partial enlarged drawing of two LED strip circuits of the utility model plate.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
As shown in Figure 1 be a kind of LED strip circuit plate, this LED strip circuit plate is connected with integrated circuit constant current unit 1, integrated circuit constant current unit 1 is connected with DC filtering unit 2, is understandable that, DC filtering unit 2 connects power supplys.
Be provided with the LED mount pad of a plurality of mutual series connection on the LED strip circuit plate, in LED spot light or the 0 Ω resistance all is installed on each LED mount pad.During assembling, the power that reaches according to actual needs is installed in the LED spot light of corresponding number respectively on the LED mount pad, and all the other LED mount pads are with 0 Ω resistance conducting; For the LED spot light that makes installation is evenly distributed, the position of LED mount pad generally has and sets in advance, during assembling the LED spot light is installed in corresponding position and makes that distance equates between the adjacent LED mount pad that the LED spot light is installed, and the LED mount pad that the LED spot light is installed that equals high order end to the LED mount pad that the LED spot light is installed of the distance of LED strip circuit plate left end and low order end to LED strip circuit plate right-hand member apart from sum; If two or more LED strip circuit plates are spliced, guarantee that the installation site of LED spot light of each LED strip circuit plate is identical, then on the spliced circuit board, the LED spot light still evenly distributes.
For the assembly unit of convenient a plurality of LED strip circuit plates, LED strip circuit plate two ends are provided with the fastener of mutual coupling, only need the right-hand member of a LED strip circuit plate and another left end snapping are got final product.
Preferably, the LED mount pad comprises a LED mount pad, the 2nd LED mount pad and the 3rd LED mount pad, when a LED mount pad, in the 2nd LED mount pad and the 3rd LED mount pad any one is equipped with the LED spot light, then other two kinds 0 Ω resistance is installed, that is to say, distance equates between the adjacent LED mount pad, and a LED mount pad that equals high order end to a LED mount pad of the distance of LED strip circuit plate left end and low order end to LED strip circuit plate right-hand member apart from sum, and the second mount pad and the 3rd mount pad also satisfy this relation.
As shown in Figure 2, be provided with 13 LED mount pads on the LED strip circuit plate of present embodiment, comprising 6 LED mount pads (from left to right being followed successively by LED6-1, LED6-2, LED6-3, LED6-4, LED6-5 and LED6-6), 3 the 2nd LED mount pads (from left to right being followed successively by LED3-1, LED3-2 and LED3-3) and 4 the 3rd LED mount pads (from left to right being followed successively by LED4-1, LED4-2, LED4-3 and LED4-4).Wherein Fig. 1 b only shows the annexation between the LED mount pad, does not limit and have the strict distance between the LED mount pad.The power of the LED spot light in the present embodiment is 1W, and the embodiment of the following several LED of setting spot lights then can be arranged:
The LED spot light is arranged on a LED mount pad LED6-2 and LED6-5 place, and power is 2W, and other LED mount pads are with 0 Ω resistance conducting;
The LED spot light is arranged on the 2nd LED mount pad LED3-1, LED3-2 and LED3-3 place, and power is 3W, and other LED mount pads are with 0 Ω resistance conducting;
The LED spot light is arranged on the 3rd LED mount pad LED4-1, LED4-2, LED4-3 and LED4-4 place, and power is 4W, and other LED mount pads are with 0 Ω resistance conducting;
The LED spot light is arranged on a LED mount pad LED6-1, LED6-2, LED6-3, LED6-4, LED6-5 and LED6-6 place, and power is 6W, and other LED mount pads are with 0 Ω resistance conducting.
When a plurality of LED strip circuit plates splice, can obtain again the different circuit board of more power.
Preferably, integrated circuit constant current unit 1 comprises integrated circuit U1, the first resistance R 1, inductance L 1, the 5th diode D5, the first capacitor C 1 and the second capacitor C 2; Integrated circuit U1 is provided with switch terminals SW, earth terminal GND, empty pin NC, current sample end SENSE and voltage input end VIN;
Switch terminals SW connects the negative pole of LED strip circuit plate by inductance, current sample end SENSE connects the positive pole of LED strip circuit plate, voltage input end VIN connects the output of DC filtering unit 2, the first resistance R 1 two ends connect respectively voltage input end VIN and current sample end SENSE, empty pin NC is by the first capacitor C 1 ground connection, and the second capacitor C 2 two ends connect respectively the negative pole of voltage input end VIN and strip circuit plate; The anodal connecting valve end of the 5th diode D5 SW, and negative pole connects voltage input end VIN.The inductance value of inductance L 1 is 47 μ H in the present embodiment, and the capacitance of the first capacitor C 1 is 105 μ F, and the capacitance of the second capacitor C 2 is 2.2 μ F, and the resistance of the first resistance R 1 is 0.56 Ω, and wherein, the model of integrated circuit U1 is SD42525.
Preferably, integrated circuit constant current unit 1 comprises that also the second resistance R 2, the second resistance R 2 are in parallel with the first resistance R 1, and the resistance of the second resistance R 2 is 0.56 Ω.
Preferably, DC filtering unit 2 is connected with power supply, and DC filtering unit 2 comprises the first diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4 and the 3rd capacitor C 3;
The negative pole of the first diode D1 connects positive source and its minus earth, the positive pole of the second diode D2 connects the output of positive source and its negative pole connection DC filtering unit 2, the positive pole of the 3rd diode D3 connects the output of power cathode and its negative pole connection DC filtering unit 2, the negative pole of the 4th diode D4 connects power cathode and its minus earth, and the 3rd capacitor C 3 two ends are ground connection and the output that is connected DC filtering unit 2 respectively.Wherein the power supply in the present embodiment is the 24V dc source, and the model of the diode of using in this example is SS14, and the capacitance of the 3rd capacitor C 3 is 4.7 μ F.
Preferably, the DC filtering unit also comprises the 4th capacitor C 4, the 5th capacitor C 5 and the 6th capacitor C 6, the 4th capacitor C 4, the 5th capacitor C 5 and the 6th capacitor C 6 are connected in parallel on respectively the two ends of the 3rd electric capacity, and the capacitance of the 4th capacitor C 4 of present embodiment, the 5th capacitor C 5 and the 6th capacitor C 6 is 4.7 μ F.
The utility model also provides a kind of strip lamp that is provided with above-mentioned LED strip circuit plate, this strip lamp comprises lamp casing, two or more than two above-mentioned LED strip circuit plate carries out snapping by fastener, forms the LED lamp plate and is installed in lamp casing inside;
Carry out conducting by wire between each LED strip circuit plate.
Fig. 4 shows two spliced partial enlarged drawings of LED strip circuit plate, be understandable that, scheme LED6-5 on upper first block of LED strip circuit plate equals the LED6-1 on LED6-6 to the second block of LED strip circuit plate on first block of LED strip circuit plate to the distance between the LED6-6 distance.
Preferably, strip lamp also comprises splicing at the hollow plate at LED lamp plate two ends, and hollow plate is that prior art repeats no more herein.
Shown in Fig. 3 A, Fig. 3 B is the PCB figure of present embodiment LED strip circuit plate, a LED strip circuit plate is approximately 270mm in the present embodiment, LED strip circuit plate by two or more than two is spliced to form the light fixture that the LED lamp plate can be adapted to different length, below listed the assembling of several different lamps, every kind of light fixture can obtain according to the difference of LED spot light position four kinds of different luminous powers again:
0.6 the light fixture of rice: with 2 blocks of LED strip circuit plates, fill respectively the hollow plate of 9.5mm at two ends, power can be 4W, 6W, 8W, 12W;
0.9 the light fixture of rice: with 3 blocks of LED strip circuit plates, the hollow plate power of filling respectively 25mm at two ends can be 6W, 9W, 12W, 18W;
1.2 the light fixture of rice: with 4 blocks of LED strip circuit plates, the hollow plate power of filling respectively 41mm at two ends can be 8W, 12W, 16W, 24W;
1.5 the light fixture of rice: with 5 blocks of LED strip circuit plates, the hollow plate power of filling respectively 57mm at two ends can be 10W, 15W, 20W, 30W;
1.7 the light fixture of rice: with 6 blocks of LED strip circuit plates, the hollow plate power of filling respectively 23mm at two ends can be 12W, 18W, 24W, 36W.
Although the utility model describes by specific embodiment, it will be appreciated by those skilled in the art that, in the situation that does not break away from the utility model scope, can also carry out various conversion and be equal to alternative the utility model.In addition, for particular condition or material, can make various modifications to the utility model, and not break away from scope of the present utility model.Therefore, the utility model is not limited to disclosed specific embodiment, and should comprise the whole embodiments that fall in the utility model claim scope.
Claims (9)
1. LED strip circuit plate, be connected with integrated circuit constant current unit (1), described integrated circuit constant current unit (1) is connected with DC filtering unit (2), it is characterized in that, described LED strip circuit plate is provided with the LED mount pad of a plurality of mutual series connection, in LED spot light or the 0 Ω resistance one all is installed on each described LED mount pad, and distance equates between the adjacent described LED mount pad that the LED spot light is installed, the described LED mount pad that the LED spot light is installed that this distance equals high order end to the described LED mount pad that the LED spot light is installed of the distance of described LED strip circuit plate left end and low order end arrive described LED strip circuit plate right-hand member apart from sum;
Described LED strip circuit plate two ends are provided with the fastener of mutual coupling.
2. LED strip circuit plate according to claim 1, it is characterized in that, described LED mount pad comprises a LED mount pad, the 2nd LED mount pad and the 3rd LED mount pad, in a described LED mount pad, the 2nd LED mount pad and the 3rd LED mount pad any one is equipped with the LED spot light, then other two kinds 0 Ω resistance is installed.
3. LED strip circuit plate according to claim 2, it is characterized in that described integrated circuit constant current unit (1) comprises integrated circuit (U1), the first resistance (R1), inductance (L1), the 5th diode (D5), the first electric capacity (C1) and the second electric capacity (C2); Described integrated circuit (U1) is provided with switch terminals (SW), earth terminal (GND), empty pin (NC), current sample end (SENSE) and voltage input end (VIN); Described switch terminals (SW) connects the negative pole of described LED strip circuit plate by described inductance, described current sample end (SENSE) connects the positive pole of described LED strip circuit plate, described voltage input end (VIN) connects the output of described DC filtering unit (2), described the first resistance (R1) two ends connect respectively described voltage input end (VIN) and current sample end (SENSE), described empty pin (NC) is by described the first electric capacity (C1) ground connection, and described the second electric capacity (C2) two ends connect respectively the negative pole of described voltage input end (VIN) and described strip circuit plate; Described the 5th diode (D5) is anodal to connect described switch terminals (SW), and negative pole connects described voltage input end (VIN).
4. LED strip circuit plate according to claim 3 is characterized in that, described integrated circuit constant current unit (1) also comprises the second resistance (R2), and described the second resistance (R2) is in parallel with described the first resistance (R1).
5. LED strip circuit plate according to claim 3 is characterized in that, the model of described integrated circuit (U1) is SD42525.
6. LED strip circuit plate according to claim 2, it is characterized in that, described DC filtering unit (2) is connected with power supply, and described DC filtering unit comprises the first diode (D1), the second diode (D2), the 3rd diode (D3), the 4th diode (D4) and the 3rd electric capacity (C3);
The negative pole of described the first diode (D1) connects described positive source and its minus earth, the positive pole of described the second diode (D2) connects the output that described positive source and its negative pole connect described DC filtering unit (2), the positive pole of described the 3rd diode (D3) connects the output that described power cathode and its negative pole connect described DC filtering unit (2), the negative pole of described the 4th diode (D4) connects described power cathode and its minus earth, and described the 3rd electric capacity (C3) two ends are ground connection and the output that is connected described DC filtering unit (2) respectively.
7. LED strip circuit plate according to claim 6, it is characterized in that, described DC filtering unit (2) also comprises the 4th electric capacity (C4), the 5th electric capacity (C5) and the 6th electric capacity (C6), and described the 4th electric capacity (C4), the 5th electric capacity (C5) and the 6th electric capacity (C6) are connected in parallel on respectively the two ends of described the 3rd electric capacity (C3).
8. strip lamp that is provided with the described LED strip circuit of claim 1～7 any one plate, comprise lamp casing, it is characterized in that, two or more than two described LED strip circuit plate is interlockingly connected by described fastener, form the LED lamp plate, it is inner that described LED lamp plate is installed in described lamp casing;
Carry out conducting by wire between the described LED strip circuit plate.
9. strip lamp according to claim 8 is characterized in that, described strip lamp comprises that also splicing is at the hollow plate at described LED lamp plate two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200566364U CN202791882U (en) | 2012-02-21 | 2012-02-21 | LED bar-shaped circuit board and bar shaped lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200566364U CN202791882U (en) | 2012-02-21 | 2012-02-21 | LED bar-shaped circuit board and bar shaped lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202791882U true CN202791882U (en) | 2013-03-13 |
Family
ID=47819138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200566364U Expired - Lifetime CN202791882U (en) | 2012-02-21 | 2012-02-21 | LED bar-shaped circuit board and bar shaped lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202791882U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676300A (en) * | 2013-11-29 | 2015-06-03 | 上海宽带技术及应用工程研究中心 | High-frequency-response LED (light emitting diode) bead packaging structure and method |
-
2012
- 2012-02-21 CN CN2012200566364U patent/CN202791882U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676300A (en) * | 2013-11-29 | 2015-06-03 | 上海宽带技术及应用工程研究中心 | High-frequency-response LED (light emitting diode) bead packaging structure and method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |