CN213937763U - Novel photoelectric integrated projection lamp with switching power supply - Google Patents
Novel photoelectric integrated projection lamp with switching power supply Download PDFInfo
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- CN213937763U CN213937763U CN202021449364.5U CN202021449364U CN213937763U CN 213937763 U CN213937763 U CN 213937763U CN 202021449364 U CN202021449364 U CN 202021449364U CN 213937763 U CN213937763 U CN 213937763U
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- power supply
- rectifier bridge
- switching power
- light source
- alternating current
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Abstract
The utility model discloses a novel photoelectric integrated projection lamp of a switch power supply, which comprises a substrate, a switch power supply module and a light source module, wherein the switch power supply module and the light source module are encapsulated on the substrate and are mutually connected; the switching power supply module comprises a discharge tube, a rectifier bridge, a driving chip, a power inductor, a diode, an electrolytic capacitor and a discharge resistor; the first input end of the rectifier bridge is connected with a live wire of alternating current commercial power, the second input end of the rectifier bridge is connected with a zero line of the alternating current commercial power, the first input end and the second input end of the rectifier bridge are connected with a ground wire of the alternating current commercial power through a discharge tube, and the positive output end of the rectifier bridge is connected with a high-voltage power supply end of the driving chip, the positive electrode of the light source module, the negative electrode of the diode, the positive electrode of the electrolytic capacitor and one end of the discharge resistor; one end of the power inductor is connected with the high-voltage output end of the driving chip and the anode of the diode, and the other end of the power inductor is connected with the cathode of the light source module, the cathode of the electrolytic capacitor and the other end of the discharge resistor. Adopt the utility model discloses, can improve the lightning conversion efficiency, solve the low stroboscopic problem that reaches of light efficiency.
Description
Technical Field
The utility model relates to the field of lighting technology, especially, relate to a novel integrative projecting lamp of switching power supply photoelectricity.
Background
At present, the price competition of the projection lamp in the market is intense, the cost of the LED linear scheme is relatively low, and the over-authentication is relatively simple, so the LED linear scheme is the mainstream direction of the driving power supply in the photoelectric integrated projection lamp.
However, the LED linear scheme has problems of low efficiency, poor adjustability, etc.; meanwhile, the voltage input by the LED linear scheme is narrow voltage, which cannot meet the requirements of wide voltage and the normal work of extra-high voltage in a certain area; and the LED linear scheme has large power consumption, has poor stability of surge performance when being used for outdoor lightning stroke, and cannot meet the requirement.
Therefore, the existing LED linear scheme still needs to be improved and enhanced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a simple structure's novel integrative projecting lamp of switching power supply photoelectricity is provided, can improve the electro-optic conversion efficiency, solves the low and stroboscopic problem of light efficiency.
In order to solve the technical problem, the utility model provides a novel photoelectric integrated switch power supply projection lamp, which comprises a substrate, a switch power supply module and a light source module, wherein the switch power supply module and the light source module are encapsulated on the substrate and are mutually connected; the switching power supply module comprises a discharge tube, a rectifier bridge, a driving chip, a power inductor, a diode, an electrolytic capacitor and a discharge resistor; the first input end of the rectifier bridge is connected with a live wire of alternating current commercial power, the second input end of the rectifier bridge is connected with a zero line of the alternating current commercial power, the first input end and the second input end are connected with a ground wire of the alternating current commercial power through the discharge tube, the positive output end of the rectifier bridge is connected with the high-voltage power supply end of the driving chip, the positive electrode of the light source module, the negative electrode of the diode, the positive electrode of the electrolytic capacitor and one end of the discharge resistor, and the negative output end of the rectifier bridge is grounded; one end of the power inductor is connected with the high-voltage output end of the driving chip and the anode of the diode, and the other end of the power inductor is connected with the cathode of the light source module, the cathode of the electrolytic capacitor and the other end of the discharge resistor.
As an improvement of the above scheme, the switching power supply module further includes a current-limiting resistor, and the positive output end of the rectifier bridge is connected to the high-voltage power supply end of the driving chip through the current-limiting resistor.
As an improvement of the above scheme, the switching power supply module further includes an adjusting resistor group, and the current sampling end of the driving chip is grounded through the adjusting resistor group.
As an improvement of the above scheme, the switching power supply module further includes a filter capacitor, one end of the filter capacitor is connected to the positive output end of the rectifier bridge, and the other end of the filter capacitor is connected to the negative output end of the rectifier bridge.
As an improvement of the above scheme, the switching power supply module further comprises a first fuse set and/or a second fuse set; the first input end of the rectifier bridge is connected with a live wire of alternating current commercial power through the first fuse bank; and the second input end of the rectifier bridge is connected with a zero line of alternating current commercial power through the second fuse bank.
As an improvement of the above scheme, the switching power supply module further includes a first voltage dependent resistor, a second voltage dependent resistor, a third voltage dependent resistor and a fourth voltage dependent resistor; one end of the first piezoresistor is connected with a first input end of the rectifier bridge through the first insurance group, and the other end of the first piezoresistor is connected with a second input end of the rectifier bridge; one end of the second piezoresistor is connected with the first input end of the rectifier bridge, and the other end of the second piezoresistor is connected with the second input end of the rectifier bridge; one end of the third piezoresistor is connected with a live wire of alternating current commercial power, and the other end of the third piezoresistor is connected with a ground wire of the alternating current commercial power through the discharge tube; one end of the fourth piezoresistor is connected with a zero line of alternating current commercial power, and the other end of the fourth piezoresistor is connected with a ground wire of the alternating current commercial power through the discharge tube.
As an improvement of the above solution, the light source module includes a plurality of LED chips connected in series and/or in parallel.
As an improvement of the scheme, the LED chips are arranged in an array.
As an improvement of the above scheme, the light source module is disposed on one side of the substrate, and the switching power supply module is disposed around the light source module.
As an improvement of the above scheme, the substrate is an aluminum substrate.
Implement the utility model has the advantages that:
the utility model adopts the photoelectric integrated packaging technology, the switching power supply module and the light source module are basically arranged on the same block, the efficiency of converting electricity into light can be improved, the problems of low light efficiency and stroboscopic can be solved, and the energy can be saved; meanwhile, the efficiency is high, the loss is small, and the service life of the light source module is prolonged.
The utility model discloses be revised as switching power supply scheme with current linear scheme, the inefficiency of having solved linear scheme, the consumption is big, the energy is extravagant and stroboscopic problem.
The utility model discloses a unique switching power supply module of structure has realized the stable power supply to light source module, simple structure, and stability is strong.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of a novel switching power supply photoelectric integrated projection lamp;
fig. 2 is a circuit diagram of a first embodiment of the novel photoelectric integrated switch power supply projection lamp;
fig. 3 is a circuit diagram of a second embodiment of the novel photoelectric integrated switch power supply projection lamp;
fig. 4 is a circuit diagram of a third embodiment of the novel photoelectric integrated switch power supply projection lamp;
fig. 5 is a circuit diagram of a fourth embodiment of the novel photoelectric integrated switch power supply projection lamp;
fig. 6 is a circuit diagram of a fifth embodiment of the novel photoelectric integrated switch power supply projection lamp;
fig. 7 is a circuit diagram of a sixth embodiment of the novel photoelectric integrated switch power supply projection lamp.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, fig. 1 and 2 show a first embodiment of the present invention.
As shown in fig. 1, the novel photoelectric integrated switch power supply projection lamp includes a substrate, and a switch power supply module M and a light source module P packaged on the substrate, wherein the switch power supply module M and the light source module P are connected to each other.
It should be noted that the switching power supply module M and the light source module P are packaged in a photoelectric integrated manner, and the switching power supply module M and the light source module P are basically arranged on the same block, so that the phenomenon that the switching power supply is not matched with a light source does not occur, the efficiency of converting electricity into light can be improved, the problems of low light efficiency and stroboscopic effect are solved, and energy is saved; meanwhile, the efficiency is high, the loss is small, and the service life of the light source module P is prolonged. Additionally, the utility model discloses be revised as switching power supply scheme with current linear scheme, the inefficiency of having solved linear scheme, the consumption is big, the energy is extravagant and stroboscopic problem.
In the utility model, the switching power supply module M is used for converting alternating current into direct current, and the switching power supply module M has a filtering processing function; the light source module P is used for emitting a light source. Therefore, when the power supply is powered on, the switching power supply module M converts the ac mains supply into the dc power required by the operation of the light source module P, and the ac mains supply is globally used. For example, when the input ac mains supply is 220V, the switching power supply module M operates, and at this time, the light source module P is lit, so that the lighting effect is high, and the user inspection effect is good.
In practical application, the light source module P is disposed on one side of the substrate, and the switching power supply module M surrounds the light source module P.
Further, the substrate is an aluminum substrate. The aluminum substrate can effectively lead out heat generated by electronic power components in the switching power supply module M and the light source module P, and the heat dissipation performance is good. Preferably, the aluminum substrate is a high-brightness diffuse reflection aluminum substrate, but not limited thereto.
As shown in fig. 2, the switching power supply module M includes a discharge tube G1, a rectifier bridge BD1, a driver chip U1, a power inductor L1, a diode D1, an electrolytic capacitor CE2, and a discharge resistor R2; a first input end of the rectifier bridge BD1 is connected with a live wire L of alternating current commercial power, a second input end of the rectifier bridge BD1 is connected with a zero line N of the alternating current commercial power, the first input end and the second input end are connected with a ground wire E of the alternating current commercial power through the discharge tube G1, a positive output end of the rectifier bridge BD1 is connected with a high-voltage power supply end of the driving chip U1, a positive electrode of the light source module P, a negative electrode of the diode D1, a positive electrode of the electrolytic capacitor CE2 and one end of the discharge resistor R2, and a negative output end of the rectifier bridge BD1 is grounded; one end of the power inductor L1 is connected to the high-voltage output end of the driving chip U1 and the anode of the diode D1, and the other end of the power inductor L1 is connected to the cathode of the light source module P, the cathode of the electrolytic capacitor CE2 and the other end of the discharge resistor R2.
In this embodiment, the rectifier bridge BD1 is configured to convert ac mains power into dc power, supply power to the driver chip U1, and store energy for the power inductor L1 in a high-frequency switching manner; the driving chip U1 plays a role in limiting power of the light source module P; the energy stored in the power inductor L1 provides direct current for the rear light source module P through the diode D1 and the second electrolytic capacitor CE 2; the discharge resistor R2 plays a discharge role for the electrolytic capacitor CE 2. Therefore, the efficiency can be improved by switching the power supply module M, the loss is reduced, and the service life of the light source module P is prolonged.
Specifically, the driving chip U1 is provided with a high-voltage power supply terminal HV, two high-voltage output terminals DRAIN, a ground terminal GND, a current sampling terminal CS, and other functional pins. Preferably, the type of the driver chip U1 is 2823E, but not limited thereto, and the driver chip U1 has the advantages of stable performance, high efficiency, low loss, and high frequency on and off, and may have other functional types.
Further, the light source module P includes a plurality of LED chips connected in series and/or in parallel, and is arranged in an array. When the two ends of the light source module P reach the required voltage and current, the LED chip emits light. In this embodiment, the LED chips are 48 2835 9V chip-mounted LED chips, and a chip mounting and solder paste process of a machine chip mounter can be adopted, so that the production efficiency is greatly improved.
Therefore, through the utility model discloses can effectively solve the produced consumption of prior art "linear scheme" big, narrow pressure input, low thunderbolt surge, stroboscopic scheduling problem, can also solve the inefficiency that prior art "light source module P and switching power supply module M components of a whole that can function independently equipment" brought, with high costs scheduling problem.
Referring to fig. 3, fig. 3 shows a second embodiment of the present invention, which is different from the first embodiment shown in fig. 2 in that, in this embodiment, the switching power supply module M further includes a current limiting resistor R3, and the positive output terminal of the rectifier bridge BD1 is connected to the high voltage power supply terminal of the driver chip U1 through the current limiting resistor R3.
The current limiting resistor R3 can play a role in limiting current for the driving chip U1, so that the normal operation of the driving chip U1 is further ensured, and the safety is high.
Referring to fig. 4, fig. 4 shows a third embodiment of the present invention, which is different from the second embodiment shown in fig. 3 in that in this embodiment, the switching power supply module M further includes an adjusting resistor set RS, and the current sampling end of the driving chip U1 is grounded through the adjusting resistor set RS.
In this embodiment, the adjusting resistor set RS includes three resistors (RS1, RS2, RS3) connected in parallel, but not limited thereto. Through the cooperation of the adjusting resistor group RS and the driving chip U1, the power limiting function of the light source module P is achieved.
Referring to fig. 5, fig. 5 shows a fourth embodiment of the present invention, which is different from the third embodiment shown in fig. 4, in this embodiment, the switching power supply module M further includes a filter capacitor CE1, one end of the filter capacitor CE1 is connected to the positive output end of the rectifier bridge BD1, and the other end of the filter capacitor CE1 is connected to the negative output end of the rectifier bridge BD 1.
The filter capacitor CE1 has a filtering function, so that the stability of the voltage and the current of the circuit can be ensured, the interference is reduced, and the normal operation of the circuit is ensured.
Referring to fig. 6, fig. 6 shows a fifth embodiment of the present invention, which is different from the fourth embodiment shown in fig. 5, in this embodiment, the switching power supply module M further includes a first fuse set FS and a second fuse set FR; a first input end of the rectifier bridge BD1 is connected with a live wire L of alternating current commercial power through the first insurance group FS; and a second input end of the rectifier bridge BD1 is connected with a zero line N of alternating current commercial power through the second fuse set FR.
It should be noted that the first insurance group FS and the second insurance group FR may be set according to actual situations. For example, the first insurance group FS or the second insurance group FR may be separately set, or the first insurance group FS and the second insurance group FR may be set at the same time, which is highly flexible.
In this embodiment, the first fuse set FS includes three fuses (FS1, FS2, FS3) connected in parallel, and the second fuse set FR includes three fuses (FR1, FR2, FR3) connected in parallel, but not limited thereto. The first fuse set FS and the second fuse set FR are fused when the current is too large, and are used for protecting the rear-stage electronic components (such as the driving chip U1 and the rectifier bridge BD1) from being burnt out.
Referring to fig. 7, fig. 7 shows a sixth embodiment of the present invention, which is different from the fifth embodiment shown in fig. 6 in that, in this embodiment, the switching power supply module M further includes a first voltage dependent resistor VR1, a second voltage dependent resistor VR2, a third voltage dependent resistor VR3 and a fourth voltage dependent resistor VR 4.
One end of the first voltage dependent resistor VR1 is connected with a first input end of the rectifier bridge BD1 through the first fuse group FS, and the other end of the first voltage dependent resistor VR1 is connected with a second input end of the rectifier bridge BD 1; one end of the second voltage dependent resistor VR2 is connected with the first input end of the rectifier bridge BD1, and the other end is connected with the second input end of the rectifier bridge BD 1. Specifically, the first voltage dependent resistor VR1 and the second voltage dependent resistor VR2 are used for absorbing surge voltage at the ac input terminal.
One end of the third voltage dependent resistor VR3 is connected with a live wire L of alternating current commercial power, and the other end of the third voltage dependent resistor VR3 is connected with a ground wire E of the alternating current commercial power through the discharge tube G1; one end of the fourth voltage dependent resistor VR4 is connected with a zero line N of alternating current commercial power, and the other end of the fourth voltage dependent resistor VR4 is connected with a ground wire E of the alternating current commercial power through the discharge tube G1. Specifically, the third voltage dependent resistor VR3 and the fourth voltage dependent resistor VR4 are used for absorbing a surge voltage of the ac input terminal to the ground.
By the way, the utility model discloses a unique switching power supply module M of structure has realized the stable power supply to light source module P, simple structure, and stability is strong.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (10)
1. A novel photoelectric integrated switch power supply projection lamp is characterized by comprising a substrate, a switch power supply module and a light source module, wherein the switch power supply module and the light source module are packaged on the substrate and are mutually connected;
the switching power supply module comprises a discharge tube, a rectifier bridge, a driving chip, a power inductor, a diode, an electrolytic capacitor and a discharge resistor;
the first input end of the rectifier bridge is connected with a live wire of alternating current commercial power, the second input end of the rectifier bridge is connected with a zero line of the alternating current commercial power, the first input end and the second input end are connected with a ground wire of the alternating current commercial power through the discharge tube, the positive output end of the rectifier bridge is connected with the high-voltage power supply end of the driving chip, the positive electrode of the light source module, the negative electrode of the diode, the positive electrode of the electrolytic capacitor and one end of the discharge resistor, and the negative output end of the rectifier bridge is grounded;
one end of the power inductor is connected with the high-voltage output end of the driving chip and the anode of the diode, and the other end of the power inductor is connected with the cathode of the light source module, the cathode of the electrolytic capacitor and the other end of the discharge resistor.
2. The novel photoelectric integrated projection lamp of the switching power supply according to claim 1, wherein the switching power supply module further comprises a current limiting resistor, and the positive output end of the rectifier bridge is connected to the high voltage power supply end of the driving chip through the current limiting resistor.
3. The novel photoelectric integrated projection lamp with the switching power supply as claimed in claim 1, wherein the switching power supply module further comprises a regulating resistor group, and a current sampling end of the driving chip is grounded through the regulating resistor group.
4. The novel photoelectric integrated projection lamp with the switching power supply as claimed in claim 1, wherein the switching power supply module further comprises a filter capacitor, one end of the filter capacitor is connected to the positive output end of the rectifier bridge, and the other end of the filter capacitor is connected to the negative output end of the rectifier bridge.
5. The novel photoelectric integrated projection lamp of the switching power supply as claimed in claim 1, wherein the switching power supply module further comprises a first insurance group and/or a second insurance group;
the first input end of the rectifier bridge is connected with a live wire of alternating current commercial power through the first fuse bank;
and the second input end of the rectifier bridge is connected with a zero line of alternating current commercial power through the second fuse bank.
6. The novel photoelectric integrated projection lamp of the switching power supply as claimed in claim 5, wherein the switching power supply module further comprises a first voltage dependent resistor, a second voltage dependent resistor, a third voltage dependent resistor and a fourth voltage dependent resistor;
one end of the first piezoresistor is connected with a first input end of the rectifier bridge through the first insurance group, and the other end of the first piezoresistor is connected with a second input end of the rectifier bridge;
one end of the second piezoresistor is connected with the first input end of the rectifier bridge, and the other end of the second piezoresistor is connected with the second input end of the rectifier bridge;
one end of the third piezoresistor is connected with a live wire of alternating current commercial power, and the other end of the third piezoresistor is connected with a ground wire of the alternating current commercial power through the discharge tube;
one end of the fourth piezoresistor is connected with a zero line of alternating current commercial power, and the other end of the fourth piezoresistor is connected with a ground wire of the alternating current commercial power through the discharge tube.
7. The novel photoelectric integrated floodlight with the switching power supply of claim 1, wherein the light source module comprises a plurality of LED chips connected in series and/or in parallel.
8. The novel photoelectric integrated projection lamp with the switching power supply as claimed in claim 7, wherein the LED chips are arranged in an array.
9. The novel photoelectric integrated floodlight with the switching power supply of claim 1, wherein the light source module is disposed on one side of the substrate, and the switching power supply module is disposed around the light source module.
10. The novel photoelectric integrated floodlight with the switching power supply of claim 1, wherein the substrate is an aluminum substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021449364.5U CN213937763U (en) | 2020-07-21 | 2020-07-21 | Novel photoelectric integrated projection lamp with switching power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021449364.5U CN213937763U (en) | 2020-07-21 | 2020-07-21 | Novel photoelectric integrated projection lamp with switching power supply |
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| Publication Number | Publication Date |
|---|---|
| CN213937763U true CN213937763U (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021449364.5U Active CN213937763U (en) | 2020-07-21 | 2020-07-21 | Novel photoelectric integrated projection lamp with switching power supply |
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| Country | Link |
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| CN (1) | CN213937763U (en) |
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- 2020-07-21 CN CN202021449364.5U patent/CN213937763U/en active Active
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