CN102444791A

CN102444791A - LED (light emitting diode) lamp and realization method thereof

Info

Publication number: CN102444791A
Application number: CN2010102977427A
Authority: CN
Inventors: 马飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-09-30
Filing date: 2010-09-30
Publication date: 2012-05-09

Abstract

The invention relates to an LED (light emitting diode) lamp and a realization method thereof, the LED lamp is an improvement of the existing LED, belonging to the LED decoration and lighting field. A specially-designed modular structure does not adopt a circuit board completely or only uses a few of circuits (70% of the circuit boards are reduced), so that a few of processing procedures in the production link are reduced while the material cost is saved, the overall cost of the lamp is reduced and the production efficiency is greatly improved; moreover, the special structure is adopted to greatly increase the heat-dissipation surface and the heat-dissipation space of the LED and greatly improve the light attenuation resistance of the lamp; the whole lamp can be utilized repeatedly or the material recycling ratio is improved, so that the LED light source in remarkably in environment protection. The lighting surface of the lamp can be designed into any shape, size and curve owning to the special structure, so as to overcome the disadvantages that the LED lamp has single appearance, low level and design limitation, and enable the LED lamp to have artistic quality and meet the lighting or decoration requirements of various occasions.

Description

A kind of LED light fixture and its implementation

Affiliated technical field

The present invention relates to a kind of LED light fixture and its implementation, is to the enhancing and the improvement of existing LED light fixture, belongs to LED decorative lighting field.

Background technology

Along with LED optical semiconductor source technology progressively improve and ripe, and the popularizing of energy-conserving and environment-protective low-carbon (LC) notion, led light source will progressively replace the conventional light source such as neon light that bulb, electricity-saving lamp, fluorescent lamp and advertisement are used.

Led light source has that volume is little, optically focused directive property, fast, the characteristics such as the life-span grow, does not glimmer of lighting a lamp, especially because volume is little, and compound mode that must the many luminous points of employing.Reach uniform illumination, reduce dazzle, all must dispose the LED lamp from different perspectives.At present, the LED associated lamp is divided into two kinds on high-power type and small-power type, and large-power lamp is made up of at 0.5W or the LED lamp pearl more than the 1W some power, and low-power LED lamp is made up of the LED lamp pearl of some power below 0.1W.Comparatively speaking, the small-power light fixture has astigmatism property preferably, and light is soft evenly to be fit to do indoor light source, and its thermal diffusivity is also better relatively, so the light decay performance will get well a lot, and the light fixture bulk life time is also longer accordingly.And high-power LED lamp be owing to can concentrate and produce great amount of heat and need extra increase aluminium matter heat abstractor, and high-power lamp has optically focused property preferably, but astigmatism property is bad, is not suitable for doing astigmatic light source.

Some LED lamp pearls on traditional LED light fixture basically all are that the mode with constant-current driving is serially connected through circuit board, and the monoblock circuit board is fixed in the lamp housing then.The light-emitting area that this particular structural must define light fixture is necessary for plane (because circuit board must be put down); But be main lighting many times as functional and sight; The light-emitting area of light fixture need be curved surface or other nonplanar structures, and this also is a critical defect of traditional LED light fixture.Secondly, this light fixture that must have board structure of circuit, the link of production and processing need increase several procedures, comprises plug-in unit/paster, scolding tin, operation such as fixing, has all increased the cost of light fixture from raw material and processing aspect.

Being similar to application number is: the device of being narrated in 200720047959.6 (patent names: can modular LED lighting device), its particular structural have determined that it is a trouble and complicated assembling process to the overcoat that LED lamp pearl and connector are filled in the flexible glue material together with the terminal connecting line in process.In the process of manufacture of reality; Overcoat basically all be through by manual work each plug-in type LED lamp pearl together with connector and terminal connecting line and the mould injection mo(u)lding of putting into injection machine; Not only influenced production efficiency greatly; And this device since the position that LED pin and script such as connector terminals and lead can dispel the heat by the flexible glue overcoat wrap up tight, make that a large amount of heats of generation were difficult to come out when LED was luminous, facts have proved; The anti-light decay performance of this lighting device is not good, is not suitable for doing to the demanding indoor illumination light fitting of outward appearance.

Summary of the invention

Single in order to overcome existing LED lamp luminescence face; Pattern is dull, manufacturing procedure is loaded down with trivial details and material cost and the high shortcoming of processing cost; Can more convenient, more succinct Development and Production go out more cost performances light fixture higher, more Suresh Kumar and structure and be applied in the every field, the spy provides a kind of improved Novel LED lamp and its implementation.

The concrete scheme that this invention is adopted is: light fixture is made up of face-piece and LED unit and electric power driving module.Wherein, face-piece is made up of basic shell and some buckles unit, and basic shell is the carrier of buckle unit and LED unit, and basic shell can be made different shape, size and arbitrary surface; Each buckle unit is made up of at least one penetrating hole and some buckles of being centered around around the penetrating hole.The LED unit can be single LED lamp pearl, also can be welding or is fixed on single or plurality of LEDs lamp pearl on the little circuit board (comprise aluminium base etc. circuit carrier plate).Insert the lamp pearl on each LED unit from the face-piece back side penetrating hole and make LED lamp pearl light head expose front (light-emitting area) at face-piece; Each LED unit is through firm being fixed together with face-piece in corresponding buckle unit, and all LED unit are connected on the corresponding electric power driving module with the mode that parallel connection combines according to serial or parallel connection or series connection through LED pin or lead.

The shape and size in described penetrating hole are exposed head and are advisable can not make the LED unit pass completely through lamp pearl that face-piece can make the LED unit again.

Described buckle unit and basic shell are made of one, and perhaps the buckle unit is independent separating component with respect to basic shell.When buckle unit and basic shell were made of one, the LED unit was directly embedded in the buckle unit, and the lamp pearl exposes the front at face-piece through penetrating hole, made firm being assembled together of LED unit and face-piece.When the buckle unit is independent separating component; The buckle unit is made up of interior buckle, outer buckle and penetrating hole; The base shell is provided with a shape and sizeable installing hole in the position of each assembling buckle unit; Be used for making the buckle unit to see through this hole and be fixed together through himself outer buckle and basic shell; Be embedded into the LED unit in the buckle unit, LED lamp pearl also exposes the front at face-piece through penetrating hole again, just interior buckle and firm being assembled together of face-piece through the buckle unit of LED unit like this.

LED lamp pearl in the said LED unit is direct insertion LED lamp pearl or adopting surface mounted LED lamp pearl or the large-power LED light bead that has two pins.All pass through lead between the LED unit and connect, lead can be the pin of LED lamp pearl, also can be electric wire.

Can be according to concrete needs; Can on the face-piece of light fixture, install a little diffuser additional in each luminous point place, LED unit; Perhaps each LED cell enclosure can be the LED cell enclosure that has little diffuser, also can cover on whole face-piece outside with a big astigmatic lampshade with the face-piece coupling; Light fixture can add the lamp holder of casing and standard at the face-piece periphery; Circuit board (the comprising aluminium base) back side of welding LED lamp pearl can install radiating module additional in the LED unit.

Good effect of the present invention is following: at first; Can solve present LED light fixture outward appearance single, of low grade, be designed with circumscribed drawback: through design, can be processed into different shape and arbitrary surface and virtually any size to the light-emitting area of light fixture, make the outward appearance intention of light fixture unlimited the light fixture face-piece; Outside satisfying the most basic lighting demand; Can add various fashion elements, make the LED light fixture have artistry more, satisfy the illumination or the decoration demand of all kinds of occasions.Secondly, no matter be one face-piece or with the buckle unit of basic shell separate design, its special construction can pass through the large batch of depanning of automatic injection machine fully, promotes production efficiency greatly.Moreover; Through the buckle unit that designs on the light fixture face-piece and the special construction of LED unit; Can make the LED unit under the situation of need not any securing member (such as screw) or not sticking with glue, can be fixed on the face-piece of light fixture easily; And need not or use circuit board (minimum can be less with 70% circuit board) fully less, like this, when having practiced thrift material cost; On the production and processing link, also save several roads manufacturing procedure, thereby the whole cost reduction of light fixture is also enhanced productivity greatly; The modular type open architecture of last this particular design of the present invention makes the LED light fixture can use up distribution density, heat-delivery surface and the heat-dissipating space that possibly disperse and enlarge LED or LED unit greatly, makes light fixture can improve the performance of anti-light decay greatly; Because the processing of circuit board belongs to heavy polluted industry, the present invention makes the environmental protection notion of led light source more outstanding through without circuit board or use circuit board, whole light fixture to reuse to greatest extent less or the ratio of salvage material improves.With light fixture of the present invention and method can produce more energy-conserving and environment-protective fully, cost is lower, the various application lights that light efficiency is better, cost performance is higher are applied to each lighting fields such as domestic lighting, advertising lighting, commercial illumination.

Description of drawings

Fig. 1 does not install the sketch map of two kinds of face-pieces of LED unit, wherein,

It is that the face-piece of one is partial front (light-emitting area) sketch map, schematic rear view and two orthogonal profiles in center, the penetrating hole of process (light-emitting area down) at center with certain penetrating hole that 1A, 1B, 1C and 1D are followed successively by basic shell and buckle unit;

It is that the face-piece of separating component is partial front (light-emitting area) sketch map, schematic rear view and two orthogonal profiles in center, the penetrating hole of process (light-emitting area down) at center with certain penetrating hole with respect to basic shell that 1E, 1F, 1G and 1H are followed successively by the buckle unit.

Fig. 2 base shell and buckle unit are face-piece and single direct insertion LED cell schematics of one, wherein,

2A is direct insertion pin LED lamp pearl row sketch map;

2B is face-piece partial front (light-emitting area) sketch map behind the single LEDs of the installation unit;

2C, 2D and 2E are respectively single LEDs unit at the front view that is installed to the local back side, back on the face-piece and through the LED unit center of local luminous centre and vertical each other two profiles (light-emitting area down).

Fig. 3 base shell and buckle unit are the face-piece and the LED cell schematics that is fixed on the three LEDs paster lamp pearls composition on the little circuit board of one, wherein

3A, 3B and 3C respectively for this reason the front view of LED unit and two through LED unit center point and mutually perpendicular two profiles (light-emitting area down);

3D, 3E, 3F and 3G respectively for this reason the LED unit be installed on the face-piece local luminous of back with the front view at the back side and through single led unit center and vertical each other two profiles (light-emitting area down).

Fig. 4 base shell and buckle unit are the face-piece and the LED cell schematics that is fixed on single great power LED composition on the aluminium base of one, and positive (light-emitting area) each the penetrating hole of face-piece all is buckled with a little diffuser, wherein,

4A and 4B be the front view of LED unit and through the profile (light-emitting area down) of LED unit center point for this reason respectively;

4C, 4D and 4E respectively for this reason the LED unit at the front view that is being installed on the face-piece local luminous of the back and the back side and through the profile (light-emitting area down) of single led unit center.

Fig. 5 buckle unit is the face-piece of separating component and the sketch map of single direct insertion LED unit with respect to basic shell, wherein,

5A, 5B, 5C and 5D be the installation process sketch map between buckle unit and LED unit and the basic shell for this reason respectively;

5E, 5F, 5G and 4H LED unit for this reason are being installed on this face-piece local luminous of back with the front view at the back side and through single led unit center and vertical each other two profiles (light-emitting area down);

5I is the part sectioned view (light-emitting area down) of the flat luminous face-piece that constitutes of LED unit thus.

Fig. 6 buckle unit is face-piece and three LED cell schematics that the paster LED that is welded on the circuit board is formed of separating component with respect to basic shell, wherein,

6A, 6B and 6C are respectively face-piece partial elevation view and this buckle unit center point of process and mutually perpendicular two profiles (light-emitting area down) that combined back (no LED unit) by the buckle unit of a separating component and basic shell;

6D, 6E, 6F and 6G respectively for this reason the LED unit be installed on this face-piece local luminous of back with the front view at the back side and through single led unit center and vertical each other two profiles (light-emitting area down).

Fig. 7 buckle unit is that face-piece and of separating component is fixed on the back side and has the LED cell schematics that single great power LED on the aluminium base of radiating module is formed with respect to basic shell, and front, buckle unit has little diffuser, wherein,

7A, 7B and 7C are respectively face-piece partial elevation view and this buckle unit center point of process and mutually perpendicular two profiles (light-emitting area down) that combined back (no LED unit) by the buckle unit of a separating component and basic shell;

7D, 7E, 7F and 7G respectively for this reason the LED unit be installed on this face-piece local luminous of back with the front view at the back side and through single led unit center and vertical each other two profiles (light-emitting area down).

Fig. 8 connects sketch map by some LED element circuits that constant-current source drives, wherein,

8A is the circuit theory diagrams that driven some LED lamp pearls of single string series connection by constant-current source;

8B is the circuit theory diagrams that driven some LED lamp pearls of many string strings series connection by constant-current source;

8C arranges sketch map with the couplet pin formula LED lamp pearl of being made up of single LEDs unit that constant-current source drives.

Fig. 9 is connected sketch map by some LED element circuits that are made up of paster LED and circuit board that constant pressure source drives, wherein,

9A is circuit theory diagrams;

9B is the LED unit parallel connection sketch map that drives with constant pressure source.

The partial cutaway schematic of the curved surface light-emitting area that Figure 10 is made up of several kinds of LED unit and face-piece, wherein,

10A is the partial cutaway schematic (light-emitting area down) of the luminous face-piece of curved surface that is made up of the unit of LED shown in Fig. 7;

10B is the partial cutaway schematic (light-emitting area down) of the luminous face-piece of curved surface that is made up of the unit of LED shown in Fig. 6;

10C is the partial cutaway schematic (light-emitting area down) of the luminous face-piece of curved surface that is made up of the unit of LED shown in Fig. 3;

10D is the partial cutaway schematic (light-emitting area down) of the luminous face-piece of curved surface that is made up of the unit of LED shown in Fig. 5;

Among the figure, 1. direct insertion LED lamp pearl, 2.LED pin, 3. basic shell; With basic shell be one the buckle unit on buckle, 5. paster LED lamp pearl, 6. circuit board, the connection lead between the 7.LED unit; 8. large-power LED light bead, 9. aluminium base 10. is the buckle unit of separate part with respect to basic shell; 11. with respect to basic shell is to be used for being fixed on the outer buckle on the basic shell to it around the buckle unit of separate part, 12. is to be used for being fixed on the LED unit the interior buckle of its inside in the buckle unit of separate part, 13. current-limiting resistances with respect to basic shell; 14.LED lamp outer casing, 15. standard lamp heads, 16. are buckled in the little diffuser on the buckle unit light-emitting area; 17. be fixed on the radiating module at the aluminium base back side, 18. are buckled in the little diffuser on the face-piece, 19. penetrating holes.

The specific embodiment

Embodiment 1

As shown in Figure 2, traditional pins type LED lamp pearl (1) is in process, and encapsulation back (before cutting pin) generally all is that pin (2) links to each other, and the LED lamp pearl row who did not cut pin like this is exactly the LED unit that is made up of single LED lamp pearl ready-made, that connect each other.Then according to corresponding concatenate rule; Insert each LED lamp pearl (1) in the penetrating hole that has buckle on the basic shell (3) successively; And it is fixing by the buckle (4) at the face-piece back side; Between the different LED lamp pearl rows weld together head and the tail pins (2), like this, the LED unit that are made up of single direct insertion LED lamp pearl (1) all on the face-piece of light fixture just can be driven by constant-current source according to the method for attachment shown in Fig. 8; Can around face-piece, add casing (14) and standard lamp head (15) as required; Be hidden in the connection pin (2) of LED unit and constant-current source module in the shell (14) (shown in 2F among Fig. 2), constant-current source, also can be supplied power through the lamp holder and the supply voltage of other standards directly by the power supply of alternating current 220V power supply through standard lamp head (15).

Embodiment 2

As shown in Figure 3; The LED unit is welded on a little circuit board (6) by 3 paster LED lamp pearls (5) and goes up formation; Be connected in series between three paster LED lamp pearls (5); Little circuit board (6) has two leads (7), and the shape in each the penetrating hole on the basic shell (3) just can be exposed three paster LEDs that weld together (5) with size, being serially connected with lead (7) according to schematic diagram shown in Figure 7 between several LED unit; The buckle (4) of going up each penetrating hole periphery to each LED unit through basic shell (3) again is fixed on the face-piece; Like this, whole face-piece has just formed one and has been the light-emitting area of basic light emitting pixel with 3 paster LED lamp pearls (5), and the shape of face-piece can customize arbitrarily; Can also around face-piece, install additional as required and be similar to shell (14) and the standard lamp head (15) shown in the 2F figure among Fig. 2; Be hidden in lead between the LED unit (7) and constant-current source module in the shell (14), constant-current source, also can be supplied power through the lamp holder and the supply voltage of other standards directly by the power supply of alternating current 220V power supply through standard lamp head (15).

Can also be according to parallel circuit schematic diagram shown in Figure 9; Increase a current-limiting resistance (13) on the circuit board of each LED unit, the LED unit is composed in series by three paster LED lamp pearls (5) and a current-limiting resistance (13) each other, like this; Receive corresponding lead in two leads (7) on all LED unit together; Form parallel circuit between all LED unit, like this, all just can be driven by a constant pressure source LED unit of parallel connection each other.

Embodiment 3

As shown in Figure 4; The LED unit is weldingly fixed on a fritter aluminium base (9) by single large-power LED light bead (8) and goes up formation; The aluminium base back side can install a sizeable heat abstractor additional; To increase radiating effect, two electrodes of large-power LED light bead (8) are drawn from aluminium base (9) by lead (7), and the shape in the penetrating hole of each on the face-piece and size just can be exposed large-power LED light bead (8); Positive (light-emitting area) each the penetrating hole of face-piece all is buckled with a little diffuser (18), to increase astigmatic effect.Being serially connected with lead (7) according to schematic diagram shown in Figure 8 between several LED unit; Pass face-piece to the lamp pearl (8) of each LED unit again and be fixed on the buckle (4) of the aluminium base of LED unit on the face-piece back side through each penetrating hole periphery on the face-piece; Like this; Whole face-piece has just formed one and has been the light-emitting area of basic light emitting pixel with large-power LED light bead (8); The shape of face-piece can customize arbitrarily, can also around face-piece, install additional as required and be similar to shell (14) and the standard lamp head (15) shown in the 2F figure among Fig. 2, is hidden in lead between the LED unit (7) and constant-current source module in the shell (14); Constant-current source, also can be supplied power through the lamp holder and the supply voltage of other standards directly by the power supply of alternating current 220V power supply through standard lamp head (15).

Embodiment 4

As shown in Figure 5, buckle unit (10) are for being independent of the separating component of basic shell (3) individualism.Wherein, Center, buckle unit (10) is a penetrating hole (19), and appearance and size is advisable to expose LED lamp pearl (1) just, and the front is a concave form surface; Play the astigmatism effect; The back side is buckle, wherein has two interior buckles (12) to be used for fixing LED lamp pearl (1), and the outer buckle of two other of perpendicular direction (11) is used for making buckle unit (10) to be fixed on the basic shell (3).At first; Method according to shown in the 5A-5D figure is passed the installing hole on the basic shell (3) to buckle unit (10) earlier; Make buckle unit (10) and basic shell (3) together through outer buckle (11) secure bond; And then the penetrating hole (19) of LED lamp pearl (1) in the middle of the back side embeds into buckle unit (10), and make LED lamp pearl (1) blocked and be fixed in the middle of the buckle unit (10) by two interior buckles (12).Like this, LED lamp pearl (1) and buckle unit (10) are just with firm fixing of basic shell (3) and combine.Next, just can implement with reference to implementation method among the embodiment 1.

LED unit with this structure makes up the LED light-emitting area, can make the shape and the curvature of the light-emitting area of random design LED light fixture, and process is more succinct.

Embodiment 5

As shown in Figure 6, buckle unit (10) are for being independent of the separating component of basic shell (3) individualism.The LED unit constitutes for three the paster LED lamp pearls (5) that are fixedly welded on the little circuit board (6).Wherein center, buckle unit (10) is the penetrating hole of a rectangle (19); The appearance and size in penetrating hole (19) can reveal out that with lucky three paster LED lamp pearls (5) that are close to are advisable; The front is a concave form surface, plays the astigmatism effect, and the back side is buckle; Wherein have buckle in a pair (12) to be used for fixing little circuit board (6), the outer buckle of two other of perpendicular direction (11) is to be used for making buckle unit (10) to fix and be attached on the basic shell (3).At first; Method with reference to shown in the 5A-5D figure is passed the installing hole on the basic shell (3) to buckle unit (10) earlier; Make buckle unit (10) and basic shell (3) fix through outer buckle (11) and combine; And then be embedded into the little circuit board (6) of LED unit the buckle unit (10) from the back side; And three the paster LED lamp pearls (5) in the LED unit can be exposed in front, buckle unit (10) through the penetrating hole (19) on buckle unit (10), and make little circuit board (6) be fixed on centre, buckle unit (10) through two interior buckles (12).Like this, this LED unit comprise paster LED lamp pearl (5) and buckle unit (10) just with firm the combining of basic shell (3).Next, just can implement with reference to implementation method among the embodiment 2.

LED unit with this structure makes up the LED light-emitting area, can make the shape and the curvature of the light-emitting area of random design paster LED light fixture, and process is more succinct.

Embodiment 6

As shown in Figure 7, buckle unit (10) are for being independent of the separating component of basic shell (3) individualism.The LED unit constitutes for the large-power LED light bead (8) that is fixedly welded on the aluminium base (9), and buckle unit (10) positive (light-emitting area) has the structure of a little astigmatic lampshade (16), and aluminium base (9) back side is fixed with radiating module (17).Wherein, Center, buckle unit (10) is a penetrating hole (19); Appearance and size is advisable to expose large-power LED light bead (8) just, and the light that LED lamp pearl (8) is sent is evenly disperseed by little astigmatic lampshade (16), and the back side, buckle unit (10) is buckle; Wherein have buckle in a pair (12) to be used for fixing aluminium base (9), the outer buckle of two other of perpendicular direction (11) is to be used for making buckle unit (10) to be fixed on basic shell (3) upward also to be assembled together with it.At first; Method with reference to shown in the 5A-5D figure is passed the installing hole on the basic shell (3) to buckle unit (10) earlier; Buckle unit (10) and basic shell (3) fixedly are assembled together through outer buckle (11); And then be embedded into the aluminium base of LED unit (9) the buckle unit (10) from the back side, and the large-power LED light bead (8) in the LED unit can be exposed on surface, buckle unit (10) through penetrating hole (19), and aluminium base (9) is fixed in the buckle unit (10) through two interior buckles (12).Like this, this LED unit comprise large-power LED light bead (8) and buckle unit (10) just with firm being fixed together of basic shell (3).Next, just can implement with reference to implementation method among the embodiment 3.

LED unit with this structure makes up the LED light-emitting area, can make the shape and the curvature of the light-emitting area of random designing high-power LED light fixture, and process is more succinct.

Embodiment 7

Shown in figure 10; When the light fixture face-piece is nonplanar any irregular curved surface; Can be separately fixed at some LED unit in the penetrating hole on the face-piece according to the method for stating in the foregoing description fully; Connect the circuit of each LED unit then according to corresponding demand, thereby constitute the light-emitting area of any form and outward appearance.

Claims

1. a LED light fixture and its implementation; It is characterized in that: light fixture is made up of face-piece and LED unit and power module, and wherein, face-piece is made up of basic shell and some buckles unit; The base shell is the carrier of buckle unit and LED unit, and basic shell can be made different shape, size and arbitrary surface; Insert the lamp pearl on each LED unit from the face-piece back side penetrating hole and make LED lamp pearl light head expose front (light-emitting area) at face-piece; Each LED unit is through firm being fixed together with face-piece in corresponding buckle unit, and all LED unit are connected on the corresponding power module with the mode that parallel connection combines according to serial or parallel connection or series connection through LED lamp pearl pin or lead.

2. a kind of LED light fixture according to claim 1 and its implementation is characterized in that: each buckle unit is made up of at least one penetrating hole and some buckles of being centered around around the penetrating hole.

3. a kind of LED light fixture according to claim 1 and its implementation is characterized in that: the buckle unit be with basic shell be made of one or the buckle unit be independent separating component with respect to basic shell.

4. a kind of LED light fixture according to claim 3 and its implementation; It is characterized in that: buckle unit and basic shell are made of one; The LED unit is directly embedded in the buckle unit, and the lamp pearl exposes the front at face-piece through penetrating hole, makes firm being assembled together of LED unit and face-piece.

5. a kind of LED light fixture according to claim 3 and its implementation; It is characterized in that: the buckle unit is independent separating component with respect to basic shell; The buckle unit is made up of interior buckle, outer buckle and penetrating hole; The base shell is provided with a shape and sizeable installing hole in position of each assembling buckle unit, is used for making the buckle unit to see through this hole and is fixed together through himself outer buckle and basic shell, is embedded into the LED unit in the buckle unit again; LED lamp pearl also exposes the front at face-piece through penetrating hole, makes just interior buckle and firm being assembled together of face-piece through the buckle unit of LED unit.

6. a kind of LED light fixture according to claim 1 and its implementation is characterized in that: the LED unit can be single LED lamp pearl, also can be welding or is fixed on single or plurality of LEDs lamp pearl on the little circuit board (comprise aluminium base etc. circuit carrier plate).

7. a kind of LED light fixture according to claim 1 and its implementation is characterized in that: light fixture can add the lamp holder of casing and standard as required at the face-piece periphery.

8. a kind of LED light fixture according to claim 1 and its implementation; It is characterized in that: can be as required on the light fixture face-piece each luminous point place, LED unit install a little diffuser additional; Perhaps each LED cell enclosure can be the LED cell enclosure that has little diffuser, perhaps covers on whole face-piece outside to a big astigmatic lampshade with the face-piece coupling.

9. a kind of LED light fixture according to claim 1 and its implementation is characterized in that: the circuit board (comprising aluminium base) of the welding LED lamp pearl in the LED unit can install radiating module additional at its back side as required.