CN201526840U

CN201526840U - Integrated LED illuminating lamp

Info

Publication number: CN201526840U
Application number: CN2009202070855U
Authority: CN
Inventors: 鲁永忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-11-10
Filing date: 2009-11-10
Publication date: 2010-07-14
Anticipated expiration: 2019-11-10

Abstract

The utility model discloses an integrated LED illuminating lamp. The lamp comprises a lamp head and is characterized in that a connecting sleeve with a plastic housing is connected with the lower end of the lamp head; a plurality of constant-current source modules are arranged in the connecting sleeve; a circular metal lamp housing is connected with the lower end of the connecting sleeve; the lower end of the circular metal lamp housing is connected with a metal baseplate; a plurality of metal radiating fins are fixed on the upper surface of the metal baseplate, and a plurality of LED light sources are soldered on the lower surface thereof; the LED light sources are electrically connected with the constant-current source modules; the constant-current source modules are electrically connected with the lamp head; and the circular metal lamp housing is filled with heat-conducting filling materials with high thermal conductivity and specific heat capacity. The utility model has the advantages that the circular lamp housing is filled with the heat conducting filling materials, so as to enhance the heat conduction with lower cost, and effectively improve the heat dissipation conditions for the LED light sources; and the constant-current source modules have few components, no inductance, small volume, good performance, low cost and high performance-price ratio, and can be widely applied to indoor common illumination.

Description

The integral LED illuminating lamp

Technical field

The utility model relates to led light source, is specifically related to the integral LED illuminating lamp, and it can directly be connected use with utility grid.

Background technology

Along with the light efficiency of the white light LEDs of high brightness improves constantly, price constantly reduces, and white light LEDs progressively begins to be used for room lighting.At present, though AC LED illuminating lamp is on the market constantly reformed at aspects such as heat radiation, structure, brightness, constant currents, cost performance has had bigger improvement, but cost and conventional light source such as incandescent lamp, fluorescent lamp compare and differ too big, has hindered the extensive use of led light source at indoor general lighting.

Summary of the invention

The purpose of this utility model provides the integral LED illuminating lamp, and it can improve led light source heat radiation effectively, improve the sexual valence of constant-current supply aspect, adopts and structure-integratedly makes that it is more succinct, good heat dissipation, cost be low.

Integral LED illuminating lamp described in the utility model comprises lamp holder, it is characterized in that: one moulds the shell adapter sleeve is connected with the lower end of lamp holder, is provided with the constant-current source module in this moulds the shell adapter sleeve;

One circular metal lamp housing is connected with the lower end of moulding the shell adapter sleeve, and its lower end is connected with metal substrate, on metal substrate, be fixed with metal fin, below be welded with the plurality of LEDs light source, the plurality of LEDs light source is electrically connected with the constant-current source module; The constant-current source module is electrically connected with lamp holder.

Described integral LED illuminating lamp is equipped with the high heat filling of thermal conductivity and specific heat capacity in the circular metal shell, so that the heat of led light source chip is derived as early as possible; This structure heat radiation is good, and cost is lower.

Described integral LED illuminating lamp, its described constant-current source module includes the full-wave bridge rectifier circuit that is connected with civil power 50HZ or 60HZ, and full-wave bridge rectifier circuit is connected with the positive pole of voltage sampling control circuit, led light source respectively; The voltage sampling control circuit is connected with low-voltage regulated power supply with the driving efferent duct; Current sampling control circuit is connected with low-voltage regulated power supply with the driving efferent duct respectively; The negative pole of led light source is connected with low-voltage regulated power supply with the driving efferent duct.

The constant-current supply module directly takes from civil power 50HZ or the 60HZ frequency spreads to 200HZ through ball bearing made using, circuit is taked electric current and voltage dicyclo sampling combination closed-loop control, the realization circuit is simple, its constant-current source reaches different LED power output loads and keeps high constant current accuracy under the wide voltage change scope of civil power, high electrical efficiency, it is little to add that circuit does not have few, the integrated power module volume of inductance, components and parts, in the lamp housing of directly packing into, cost is low.

The utility model compared with prior art has the following advantages: heat filling is housed in the circular shell, has strengthened hot conduction with lower cost, improve the led light source radiating condition effectively; Few, the no inductance of the components and parts of constant-current source module, volume is little, performance is excellent, cost is low, and the cost performance height can be widely used in indoor general lighting.

Description of drawings

Fig. 1, be structural representation of the present utility model.

Fig. 2, be constant-current source modular circuit block diagram of the present utility model.

Fig. 3, be the circuit diagram of constant-current source module.

Fig. 4, be Waveform Control schematic diagram of the present utility model.

Specific implementation

Referring to integral LED illuminating lamp shown in Figure 1, comprise that lamp holder 7, moulds shell adapter sleeve 2 and be connected with the lower end of lamp holder, in moulding the shell adapter sleeve, this is provided with constant-current source module 1; One circular metal lamp housing 3 is connected with the lower end of moulding shell adapter sleeve 2, and the lower end of circular metal lamp housing is connected with metal substrate 8; On metal substrate, be fixed with metal fin 6, below be welded with plurality of LEDs light source 5, the plurality of LEDs light source is electrically connected with constant-current source module 1; The constant-current source module is electrically connected with lamp holder 7; The high heat filling of thermal conductivity and specific heat capacity 4 is housed, so that the heat of led light source chip is derived as early as possible in circular metal shell 3.

Referring to Fig. 2, the constant-current source module 1 of described integral LED illuminating lamp includes the full-wave bridge rectifier circuit 13 that is connected with civil power 50HZ, and full-wave bridge rectifier circuit is connected with the positive pole of voltage sampling control circuit 10, led light source 5 respectively; Voltage sampling control circuit 10 is connected with low-voltage regulated power supply 9 with driving efferent duct 12; Current sampling control circuit 11 is connected with low-voltage regulated power supply with the driving efferent duct respectively; The negative pole of led light source 5 is connected with low-voltage regulated power supply with the driving efferent duct.

Referring to Fig. 3, it is the circuit diagram of constant-current source module, the course of work of circuit: the civil power ac input end connects the full-wave bridge rectifier circuit that D1-D4 forms through insurance resistance R 1, the 100HZ half-sinusoid of full-wave bridge rectifier circuit output carries out voltage sampling control through resistance R 3, R4, reference voltage source Dk1, regulates resistance R 3 and can obtain different output voltage values; Its control procedure is

Referring to Fig. 4, its control procedure is: when the half-sinusoid of input rises to the magnitude of voltage Vk of setting, sampling reference voltage source Dk1 conducting, make and drive efferent duct BG shutoff, then the LED1-LEDn light source turn-offs not luminous, when half-sinusoid drops to the magnitude of voltage Vk that is lower than setting or rises to Vk with front wheel driving efferent duct BG conducting, the LED1-LEDn light source sends pulsed light wave with the frequency of 200HZ, take a sample in resistance R 9 from the output current that the LED1-LEDn light source flows through, through resistance R 8, R7, the current sampling control that reference voltage source Dk2 forms, the pulse current of output is through capacitor C 2, after C3 averages value filtering, when current value during greater than setting reference voltage source Dk2 conducting force to drive efferent duct BG and turn-off, make driving efferent duct BG conducting again in case current sampling resistor R9 goes up no current.Because capacitor C 2, the delayed-action of C3 makes current sampling control Dk2 break-make repeatedly, and the break-make that drives efferent duct BG is subjected to Dk1, the dual control of Dk2, Dk1, as long as having a conducting to drive efferent duct BG, just turn-offs Dk2, Dk1, when all turn-offing, Dk2 drives just conducting of efferent duct BG, and Dk2 has electric current output in the Dk1 shutoff cycle, and output current conducting during greater than setting, at different input voltage V1, the mean value of output current is constant on the numerical value of setting up under the V2, the advantage of this circuit is to adopt very simple mode to utilize AC network 50HZ operating frequency, spread spectrum is operated in 200HZ pulse switch state, adopt simple two reference voltage sources to carry out voltage and current double closed-loop combination control again, realized under the input voltage of broad changes, or the output current steady state value is accurate under the different LED power terminations, the power consumption that drives efferent duct BG is little, the electrical efficiency height, do not generate heat, big components and parts such as no inductance, volume is little, cost is very low.

Claims

1. the integral LED illuminating lamp comprises lamp holder (7), it is characterized in that:

One moulds shell adapter sleeve (2) is connected with the lower end of lamp holder (7), is provided with constant-current source module (1) in this moulds the shell adapter sleeve;

One circular metal lamp housing (3) is connected with the lower end of moulding shell adapter sleeve (2), its lower end is connected with metal substrate (8), on metal substrate, be fixed with metal fin (6), below be welded with plurality of LEDs light source (5), the plurality of LEDs light source is electrically connected with constant-current source module (1); The constant-current source module is electrically connected with lamp holder (7).

2. integral LED illuminating lamp according to claim 1 is characterized in that: the high heat filling (4) of thermal conductivity and specific heat capacity is housed in circular metal shell (3).

3. integral LED illuminating lamp according to claim 1 and 2, it is characterized in that: described constant-current source module (1) includes the full-wave bridge rectifier circuit (13) that is connected with civil power 50HZ or 60HZ, and full-wave bridge rectifier circuit is connected with the positive pole of voltage sampling control circuit (10), led light source (5) respectively; Voltage sampling control circuit (10) is connected with low-voltage regulated power supply (9) with driving efferent duct (12); Current sampling control circuit (11) is connected with low-voltage regulated power supply (9) with driving efferent duct (12) respectively; The negative pole of led light source (5) is connected with low-voltage regulated power supply (9) with driving efferent duct (12).