CN208295582U - A kind of lighting device - Google Patents

Abstract

The utility model discloses a kind of lighting devices, including pedestal and lampshade, the lampshade is mounted on the base, an accommodating space is formed between lampshade and pedestal, accommodating space is equipped with illuminating module substrate and illuminating module, wherein illuminating module substrate is mounted on the base, illuminating module is mounted on the surface of illuminating module substrate, and the utility model does not need to need additional huge volume to accommodate circuit and special heat dissipation design such as traditional design.In addition, the driving circuit of the light emitting diode of the utility model, more because its structure is simpler, manufacturing method that can be inexpensive realizes completion, and the design of relatively slightization is achieved.

Description

A kind of lighting device

Technical field

The utility model relates to a kind of lighting device, specifically a kind of lighting device for light emitting diode.

Background technique

In recent years, the fast development as made of semiconductor, for conventional light source, the hair of service life length and low power consumption Optical diode is increasingly used in illumination by public universal.But because the power supply that traditional Indoor Lighting Design uses is mostly Alternating current, but light emitting diode is that DC power supply is needed to drive to convert electric energy to luminous energy.Therefore light-emitting diodes are used at present When pipe is as light source, it is still necessary to want an exchange to turn the converter of direct current.

The first figure is please referred to, for the illuminating module block diagram of light emitting diode known at present.Illuminating module 1 includes to hand over Stream/direct current transducer 11 and light emitting diode 12.Illuminating module 1 is converted AC power source 10 using AC/DC converter 11 For DC power supply, and DC power supply is supplied to light emitting diode 12 and is used.AC power source 10 is, for example, common commercial friendship 100 volts/110 volts/220 volts of galvanic electricity source, but can also be the AC power source of high voltage.But this known driving electricity Lu Youyi problem, while first and second figure is please referred to, just it is to provide DC power supply to the ac/dc of light emitting diode 12 Converter 11, volume is very huge, and because exchange conversion direct current can generate excessive thermal energy.Therefore to directly replace Lamps and lanterns originally, often may require that an additional space with device AC/DC converter 11, and need it is enough dissipate Thermal design avoids lamps and lanterns from scalding excessively and generates danger.

In view of previous reasons, a kind of driving circuit of light emitting diode is needed at present, when reducing it applied to AC power source Required volume proposes the lighting device of this creation, does not need as passed under the prolonged thinking and research through applicant Need additional huge volume to accommodate circuit and special heat dissipation design as system design.In addition, the light-emitting diodes of this creation The driving circuit of pipe is simpler because of phase structure, can the manufacturing method of low cost realize and complete, and the design evidence of relatively slightization To realize.

Summary of the invention

The purpose of this utility model is to provide a kind of lighting devices, to solve the problems mentioned in the above background technology.

To achieve the above object, the utility model provides the following technical solutions:

A kind of lighting device, including pedestal and lampshade, the lampshade are mounted on the base, and one is formed between lampshade and pedestal A accommodating space, accommodating space are equipped with illuminating module substrate and illuminating module, wherein and illuminating module substrate is mounted on the base, Illuminating module is mounted on the surface of illuminating module substrate.

Further technical solution as the utility model: the illuminating module includes voltage transformation unit, rectification unit, fixed electricity Stream unit and luminescence unit, the voltage transformation unit are connected between rectification unit and AC power source, and the output end of rectification unit connects The input terminal of constant current unit is connect, constant current unit is also connected with luminescence unit, further includes a clamp diode, clamp diode One end connects the DC power supply, other end connection ground.

Further technical solution as the utility model: the rectification unit is diode bridge type rectifier.

Further technical solution as the utility model: the constant current unit is two pole of one or more constant currents Pipe.

Further technical solution as the utility model: it is connected in parallel between the multiple constant current diode.

Further technical solution as the utility model: the luminescence unit is one or more light emitting diodes.

Further technical solution as the utility model: it is connected in series between the multiple light emitting diode.

Further technical solution as the utility model: the rectification unit is bridge rectifier.

Further technical solution as the utility model: rotating seat is also equipped with below the pedestal.

Compared with prior art, the utility model has the beneficial effects that the utility model does not need to need such as traditional design Want additional huge volume to accommodate circuit and special heat dissipation design.In addition, the drive of the light emitting diode of the utility model Dynamic circuit is simpler because of its structure, and manufacturing method that can be inexpensive realizes completion, and the design of relatively slightization is achieved.

Detailed description of the invention

Fig. 1 is the illuminating module block diagram of prior art light emitting diode.

Fig. 2 is the lighting device schematic diagram of prior art light emitting diode.

Fig. 3 is the lighting device schematic diagram of the light emitting diode of the utility model specific embodiment.

Fig. 4 is the illuminating module block diagram of the utility model specific embodiment

Fig. 5 is the illuminating module circuit diagram of the utility model specific embodiment.

Fig. 6 is the constant current unit circuit diagram of the utility model specific embodiment.

Fig. 7 is the luminescence unit circuit diagram of the utility model specific embodiment.

Fig. 8 is the illuminating module circuit diagram of the utility model specific embodiment.

In figure: 31- lampshade, 32- illuminating module, 33- illuminating module substrate, 34- pedestal, 35- rotating seat.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-8, a kind of lighting device, including pedestal 34 and lampshade 31 are please referred to, the lampshade 31 is mounted on pedestal 34, An accommodating space is formed between lampshade 31 and pedestal 34, accommodating space is equipped with illuminating module substrate 33 and illuminating module 32, In, illuminating module substrate 33 is mounted on pedestal 34, and illuminating module 32 is mounted on the surface of illuminating module substrate 33.

Illuminating module 32 includes voltage transformation unit, rectification unit, constant current unit and luminescence unit, the voltage transformation unit connection Between rectification unit and AC power source, the input terminal of the output end connection constant current unit of rectification unit, constant current unit is also Luminescence unit is connected, further includes a clamp diode, clamp diode one end connects the DC power supply, other end connection ground.

Rectification unit is diode bridge type rectifier.Constant current unit is one or more constant current diodes.It is multiple fixed It is connected in parallel between current diode.Luminescence unit is one or more light emitting diodes.It connects between multiple light emitting diodes Connection.Rectification unit is bridge rectifier.The lower section of pedestal 34 is also equipped with rotating seat 35.

The working principle of the utility model is: to solve in prior art, because being caused using AC/DC converter The design volume of integrated circuit and lighting device is huge, cost also higher situation.Referring initially to third figure, have for this creation The lighting device schematic diagram of the light emitting diode of body embodiment.The lighting device of this creation specific embodiment includes lampshade 31, hair Optical mode group substrate 32, illuminating module 33, pedestal 34 and rotating seat 35.

Lampshade 31 will form an accommodating space after being combined with pedestal 34.Lampshade 31 can be transparent or semitransparent material, Including but not limited to light diffusion PC material, polystyrene PS, polycarbonate, polythene PE, polypropylene PP etc..It is specific real one It applies in example, uses photodiffusion material to can reach high transparency, high diffusivity, light as the material of lampshade 31 and be uniformly distributed, without dizzy Light, without shadow, ageing-resistant, anti-flammability is good, impact resistance is high the advantages that.Lampshade 31 also visual demand and have color.Pedestal 34 Material can be metal, such as die casting aluminium, profile aluminium, also can be nonmetallic, such as ceramics, heat-conducting plastic, graphite, carbon black.

Illuminating module substrate 32 can be incorporated into accommodating space with the pedestal 34.Illuminating module substrate 32 can be paper base material copper Foil basal plate, glass baseplate copper foil basal plate, composite insulating foil basal plate, the substrate of resistance to thermoplasticity, flexible base plate, ceramic substrate, Metal substrate etc..

Illuminating module 33 is formed on the surface of the illuminating module substrate 32.In one embodiment, illuminating module shape At on the upper surface of illuminating module substrate 32, that is, the contralateral surface relative to pedestal 34 of illuminating module substrate 32.But Illuminating module 33 is not limited to be formed in a wherein surface for illuminating module substrate 32.Then the 4th figure is please referred to, it is practical new for this The illuminating module block diagram of type specific embodiment.The illuminating module 4 of this creation specific embodiment includes rectification unit 41, constant current list Member 42 and luminescence unit 43.

AC power source 40 can be input to rectification unit 41, become DC power supply after the rectification of rectification unit 41.Rectification is single Member 41 is including but not limited to bridge rectifier, half-wave rectifier, full-wave rectifier, diode rectifier.Rectification unit 41 can be defeated Direct current after rectifying out is to constant current unit 42.DC power supply after rectified unit 41 rectifies is in general and unstable, Even if but constant current unit 42 is in large range of supply voltage, such as 1 to 100 volt or 2 to 200 volts, can fix defeated A constant current out, that is to say, that even if supply voltage changes, the electric current of output will not be influenced.In a specific embodiment In, constant current unit 42 may include an at least constant current diode, but not limited to this, fixed electricity can be also completed via other modes The function of stream is defeated to make constant current unit 42 provide higher more stable electric current all in the creation spirit protection scope of the utility model Out, in another embodiment, the 6th figure is please referred to, constant current unit also can be in parallel for most constant current diodes.

Luminescence unit 43 can receive the electric current of the output of constant current unit 42, converts electrical energy into luminous energy, becomes a luminous light Source.In one embodiment, the output fixed current that can be used constant current diode stable reduces spread of voltage or has prominent The danger that waveguide electroluminescent unit 43 burns or damages, the service life in light emitting diode use enable are longer.

Then the 5th figure is please referred to, is the utility model the utility model specific embodiment illuminating module circuit diagram.This creation tool The driving circuit of body embodiment includes transformer 51, bridge-type diode rectifier 52, constant current diode 53, light emitting diode 54 And Clamp diode 55.

AC power source 50 can input one second AC power source to transformer 51.Transformer 51 is by the electricity of second AC power source One first AC power source is exported after buckling pressure to bridge-type diode rectifier 52, first AC power source is whole through bridge type diode After flowing the rectification of device 52, DC power supply is exported to constant current diode 53.In one embodiment, the 6th figure is please referred to, fixed electricity Stream diode 53 can also be formed by most constant current diodes are in parallel, to provide higher more stable electric current output.Then Please continue to refer to the 5th figure, DC power supply can be converted to stable output electric current via constant current diode 53, and will be stable It is the brightness for improving light source that output electric current, which is supplied to light emitting diode 54., please refers to the 7th figure, in one embodiment, hair Optical diode 54 can be formed using most light emitting diode series connection.

Then it is further continued for further coupling one end of Clamp diode 55 in a specific embodiment refering to the 5th figure Via the DC power supply that bridge-type diode rectifier 52 exports, the other end is coupled to ground.Clamp diode 55 includes but unlimited In one way clamp type diode and two-way clamp type diode.Under the pulse that circuit generates high-energy, such as thousands of watts of height Under energy pulse, the high energy pulse of moment generation is absorbed by Clamp diode 55, voltage clamping is lived, driving circuit is made It is not easily susceptible to damage, increases the service life of whole driving circuit.

Clamp diode is not restricted to couple the output end of bridge-type diode rectifier.The 8th figure is please referred to, is another The illuminating module circuit diagram of the utility model specific embodiment.The driving circuit of this creation specific embodiment includes AC power source 80, Clamp diode 81, diode 82-85, the constant current diode 86 of multiple parallel connections, concatenated multiple light emitting diodes 87-88。

AC power source 80 can be input to bridge-type diode rectifier, and wherein bridge-type diode rectifier is diode 82-85 It is formed.Unlike preceding the utility model specific embodiment, Clamp diode 81 can be coupled directly to AC power source 80, Under the pulse of high-energy, driving circuit is made to be not easily susceptible to damage.After AC power source 80 is rectified via diode 82-85, output DC power supply gives the constant current diode 86 of multiple parallel connections, to provide stable constant current output.Constant current is input to concatenated Multiple light emitting diode 87-88 are to form a light source.Unlike preceding the utility model specific embodiment, light source is by concatenated Multiple light emitting diodes 87 and concatenated multiple light emitting diodes 88 are formed.But it, can be by more in the creation spirit of the utility model elder generation The concatenated light emitting diode of multiple groups provides the light source of more high brightness.

Third figure is please referred to again, in order to which heat caused by illuminating module 33 can be passed by pedestal 34, pedestal 43 The structure with heat dissipation, such as fin type structure can be designed.Pedestal 34 can be combined with rotating seat 35, to be easily installed in lamps and lanterns On.But in another embodiment, pedestal 34 can also be integrally formed with rotating seat 35, facilitate production.

Unlike prior art, in one specific embodiment of this creation, rectified using transformer 51, bridge-type diode The illuminating module of light emitting diode can be completed in device 52, constant current diode 53.Effective letter saves body required for illuminating module Long-pending and weight.Reduce illuminating module design after, in conjunction with illuminating module diode illuminating device can displace easily it is traditional Illuminator.Therefore, it in the case where illuminating module does not account for additional huge volume, is easily replaced using light emitting diode illuminating apparatus Such as the conventional lamps such as fluorescent tube or tengsten lamp, it is further reduced power consumption, reduces the waste of the energy.

In conclusion the lighting device that this creation is proposed, have because its structure is simpler, can low cost manufacturer Method, which is realized, to be completed, and the design of relatively slightization is realized accordingly.

So far, the specific embodiment of the driving circuit of this creation has been elaborated via above description and diagram.? Disclosed all features all may be in conjunction with other features in this specification, each disclosed feature in this specification May selectivity with replaced the feature of identical, equal or similar purpose, therefore, other than especially significant feature, institute Feature disclosed by this specification be only an example in equal or similar features.It is preferably embodied by this creation After the description of example, being familiar with this technical field personnel be should understand that, this creation actually a novel, progress and has industrial applicability Creation, it is deep to have dynamogenetic value.This create as the people Ren Shi craftsman for being familiar with skill thinks and be it is all as modify, it is so not de- such as attached application The be intended to Protector of range.

Claims (8)

1. a kind of lighting device, including pedestal and lampshade, which is characterized in that the lampshade is mounted on the base, lampshade and pedestal Between formed an accommodating space, accommodating space be equipped with illuminating module substrate and illuminating module, wherein illuminating module substrate installation On pedestal, illuminating module is mounted on the surface of illuminating module substrate；Illuminating module includes voltage transformation unit, rectification unit, determines Current unit and luminescence unit, the voltage transformation unit are connected between rectification unit and AC power source, the output end of rectification unit The input terminal of constant current unit is connected, it further includes a clamp diode that constant current unit, which is also connected with luminescence unit, clamps two poles Pipe one end connects the DC power supply, other end connection ground.

2. a kind of lighting device according to claim 1, which is characterized in that the rectification unit is the rectification of diode bridge type Device.

3. a kind of lighting device according to claim 2, which is characterized in that the constant current unit includes one or more Constant current diode.

4. a kind of lighting device according to claim 3, which is characterized in that in parallel between the multiple constant current diode Connection.

5. a kind of lighting device according to claim 1, which is characterized in that the luminescence unit is one or more shines Diode.

6. a kind of lighting device according to claim 5, which is characterized in that the company of series connection between the multiple light emitting diode It connects.

7. a kind of lighting device according to claim 1, which is characterized in that the lampshade is transparent or translucent material.

8. a kind of lighting device according to claim 1, which is characterized in that be also equipped with rotation below the pedestal Seat.