CN207065298U - LED floodlights - Google Patents

Abstract

the utility model provides a L ED floodlight, including back lid and light source drive intergral template, the one end of light source drive intergral template has L ED banks, the front end housing of back lid has closed the light-passing board, the back lid include the backplate and by the curb plate of backplate forward extension, the backplate with the curb plate surrounds and forms the holding region, it has the anti-light cup of metal to settle in the holding region, the anti-light cup of metal has the support the bottom plate of L ED banks with be the form lateral wall that expands gradually, the lateral wall is close to the position of bottom plate is seted up and is supplied the position of light source drive intergral template is close to the opening that the one end of L ED banks was passed.

Description

LED floodlights

technical field

The utility model belongs to the technical field of LED lighting, and more specifically relates to an LED floodlight.

Background technique

In order to meet the heat dissipation requirements of the existing LED floodlights, a separate heat dissipation component is usually provided, or a lamp body rear shell made of a metal material is used as the heat dissipation component. However, if a separate heat dissipation component is used, the internal structure of the LED floodlight is complicated and the cost is high; if a metal material is used as the back shell of the lamp body as the heat dissipation component, because the metal material has conductivity, the drive component for converting the external power supply and The metal shell is isolated to avoid short circuit, and the internal structure of the LED lamp is complicated and the cost is high.

Utility model content

The purpose of the utility model is to provide an LED floodlight with reflector heat dissipation, so as to solve the problems in the prior art that the LED floodlight has a high cost and a complex structure due to the use of a metal casing for heat dissipation.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a LED floodlight is provided, including a back cover and a light source driving integrated board, one end of the light source driving integrated board has an LED lamp group, and the back cover The front cover is covered with a light-transmitting plate, and the rear cover includes a back plate and a side plate extending forward from the back plate. The back plate and the side plate are enclosed to form an accommodation area, and the accommodation area is placed There is a metal reflective cup; the metal reflective cup has a bottom plate supporting the LED lamp group and a gradually expanding side wall, and the side wall is adjacent to the bottom plate. The opening through which one end of the LED light set passes.

Further, the thickness of the side wall of the metal reflective cup gradually becomes thinner from the bottom plate to the mouth of the metal reflective cup.

Further, it is characterized in that: the front end of the light-transmitting plate is fastened with a hollow front frame, the front frame and the rear cover are connected by fasteners, and the light-transmitting plate is locked.

Further, the back plate of the back cover is provided with a waterproof connector for connecting to an external power supply.

Further, it also includes a U-shaped bracket, and the two ends of the U-shaped bracket are respectively hinged on the two sides of the rear cover.

Further, it also includes a light-transmitting cover with light diffusion function, the light-transmitting cover is installed on the bottom plate, and the light-transmitting cover covers the LED lamp group of the light source driver integrated board.

Further, the light-transmitting cover includes a transparent light-transmitting cover frame, and a light-transmitting sheet with light diffusion function, and the light-transmitting sheet is installed in the light-transmitting cover frame.

Further, a buckle is provided on the rear side of the light-transmitting cover, and a buckle is provided on the bottom plate of the metal reflector cup to cooperate with the buckle.

Further, a plurality of heat dissipation strips are provided on the front side of the backboard of the rear cover, and heat dissipation grooves corresponding to the heat dissipation strips are provided on the rear side of the backboard.

Further, the heat dissipation strips are distributed in parallel and equidistant; among the plurality of heat dissipation strips: the length of the heat dissipation strips in the middle is greater than the length of the heat dissipation strips on both sides.

The beneficial effect of the LED floodlight provided by the utility model is that: compared with the prior art, the LED lamp group part of the light source drive integrated board described in the utility model is directly inserted in the metal reflective bottom plate, and the LED lamp group part is connected with the metal reflective bottom plate. The metal reflective bottom plate is closely attached; the LED lamp group can directly conduct the heat generated during operation to the metal reflective cup, and the heat dissipation effect is better. There is no need to use a separate heat dissipation component or use a metal material rear shell for heat dissipation, saving costs.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the accompanying drawings that are required in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only the practical For some novel embodiments, those skilled in the art can also obtain other drawings based on these drawings without any creative work.

Fig. 1 is the structural representation of the LED floodlight that the utility model embodiment provides;

Fig. 2 is a schematic diagram of the explosion structure of the LED floodlight provided by the embodiment of the present invention;

Fig. 3 is a partial structural schematic diagram 1 of the LED floodlight provided by the embodiment of the utility model;

Fig. 4 is a partial structural schematic diagram II of the LED floodlight provided by the embodiment of the present invention;

Fig. 5 is a vertical sectional structure diagram of the LED floodlight provided by the embodiment of the present invention;

Fig. 6 is a transverse cross-sectional structure diagram of the LED floodlight provided by the embodiment of the present invention;

Fig. 7 is a vertical cross-sectional structure diagram of the metal reflector cup of the LED floodlight provided by the embodiment of the present invention.

Among them, the main marks of each accompanying drawing in the figure are:

1-front frame; 2-translucent plate; 3-translucent cover; 31-translucent cover frame; 32-translucent sheet; 33-buckle; 4-metal reflective cup; 41-side wall; 42-bottom plate ;43-card slot; 44-opening; 5-light source drive integrated board; 51-LED light group; 52-drive power supply; 6-back cover; Side plate; 7-waterproof connector; 71-nut; 8-U-shaped bracket.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

It should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it may be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

It should be noted that the positions of upper, lower, front, rear, left and right defined in this utility model are only for convenience in describing the relative position and connection relationship between the structures of the various components of the utility model; they are not used to limit the The actual position of each component structure of the utility model.

Please refer to Fig. 1 to Fig. 5 together, and now the LED floodlight provided by the embodiment of the utility model will be described. The LED floodlight includes a back cover 6 and a light source driving integrated board 5, the light source driving integrated board 5 is provided with an LED lamp group 51, and the other end is provided with a driving power supply 52; the front cover of the back cover 6 is covered with a light-transmitting plate 2; The rear cover 6 includes a back plate 61 and a side plate 62 extending forward from the back plate 61. The back plate 61 and the side plate 62 are enclosed to form an accommodating area, and a metal reflective cup 4 is placed in the accommodating area; the metal reflective cup 4 has a support The bottom plate 42 of the LED lamp group 51 and the side wall 41 in a gradually expanding shape. The side wall 41 is adjacent to the bottom plate 42 and has an opening 44 for the end of the light source driving integrated board 5 close to the LED lamp group 51 to pass through. Due to the limited electro-optical conversion efficiency of LED floodlights, the LED lamps will generate a lot of heat during operation. If no heat dissipation mechanism is installed, the LED lamps will heat up rapidly, which will affect the service life of LED floodlight cups, etc.; in this embodiment , the metal reflector 4 is made of metal, which can reflect light and conduct heat. The led lamp group 51 is in close contact with the bottom plate 42 of the metal reflector 4, and conducts most of the heat to the metal reflector 4 with thermal conductivity. The metal reflector has a large area to dissipate heat and prevent the various components of the LED floodlight from being damaged due to excessive operating temperature. At the same time, the integrated light source driving board 5 is provided, and the driving power supply and the LED lamp group can be installed only by passing the light source driving integrated board 5 through the opening 44, without installing the driving power supply and the LED lamp group separately, which makes the installation of the whole lamp easy and convenient for automation Production. The LED floodlight provided by the utility model, compared with the prior art, because the LED lamp group 51 is in close contact with the bottom plate 41 of the metal reflector 4, the bottom plate 41 is made of metal and has good thermal conductivity, and the heat is conducted to the metal. The reflective cup 4 and the metal reflective cup 4 have a larger area to dissipate heat, achieving a good heat dissipation effect. Therefore, the LED floodlight provided by this embodiment does not need to be provided with a metal casing or an independent heat dissipation component, which reduces the manufacturing cost and simplifies the manufacturing process.

Further, please refer to FIG. 2 , a hollow front frame 1 is placed on the light-transmitting plate 2 , and the front frame 1 and the rear cover 6 are connected by screws to lock the light-transmitting plate 2 on the rear cover 6 . The front frame 1 locks the light-transmitting plate 2, which can prevent the light-transmitting plate from falling, and at the same time, it has a certain sealing effect.

Further, please refer to FIG. 7 , as a specific embodiment of the LED floodlight provided by the present invention, the thickness of the side wall 41 of the metal reflective cup 4 gradually becomes thinner from the bottom plate 42 to the mouth of the cup. The heat flux density at the bottom plate 42 is high, which requires better heat conduction, so thicker metal is used for heat conduction, and the thickness of the side wall at the mouth of the cup is smaller, which can save materials, and the side wall 42 with gradually changing thickness can not only fully conduct heat but also save costs .

Further, please refer to FIG. 7 , as a specific embodiment of the LED floodlight provided by the present invention, the metal reflector 4 bottom plate 42 has a thickness of 0.2-3 mm, the thickness of the side wall 41 is 0.2-3 mm at the thickest part, and the side wall The thickness of the thinnest part is 0.2-1mm. The above parameters are the best parameter ranges for LED floodlights to achieve heat dissipation while saving costs.

Further, please refer to Fig. 4 and Fig. 6 together. As a specific embodiment of the LED floodlight provided by the present invention, the back plate 61 of the rear cover 1 is inserted with a waterproof connector 7, and the waterproof connector 7 is used for connecting into the external power supply. When the wires of the external power supply are connected to the LED floodlight, the wiring position of the back plate 61 cannot be completely sealed, and the waterproof connector 7 is set to connect the wires, which can prevent water from entering the LED floodlight.

Further, please refer to Fig. 4 together. As a specific embodiment of the LED floodlight provided by the present invention, the waterproof joint 7 is fixed on the backboard 61 by two nuts 71 located on both sides of the backboard 61. A waterproof gasket (not shown in the figure) is interposed between each nut 71 and the back plate 61 . Tighten the waterproof joints with screws and install waterproof gaskets at the joints to achieve a better sealing effect.

Further, please refer to Fig. 1 and Fig. 2 together. As a specific embodiment of the LED floodlight provided by the present invention, a U-shaped bracket 8 is installed on the back cover 6, and the two ends of the U-shaped bracket 8 are connected by screws. Hinged on the side plates 62 on both sides of the back cover 6, the U-shaped bracket 8 can rotate freely, while the screw is pressed with a certain pressure, and the friction force generated by the pressing force can make the U-shaped bracket 8 fixed at a specific angle. The U-shaped bracket 8 can be set to place the LED floodlight on the ground at a certain angle, and the U-shaped bracket can be used as a handle to facilitate the movement of the LED floodlight.

Further, please refer to Fig. 2 and Fig. 3 together. As a specific embodiment of the LED floodlight provided by the present invention, it also includes a light-transmitting cover 3 with light diffusion function, which is installed on the bottom plate of the metal reflector 4 42, covering the LED light group 51 of the light source driving integrated board 5. The light-transmitting cover 3 has a good light-diffusing function, which prevents people from directly seeing the light source. The light-diffusing function is realized by roughening the surface of the light-transmitting cover 3 , surface microstructure and doping light-diffusing particles inside.

Further, please refer to Fig. 3, as a specific embodiment of the LED floodlight provided by the present invention, the translucent cover 3 includes a transparent translucent cover frame 31, and a The transparent sheet 32, the transparent sheet 32 has a function of light diffusion. In order to avoid direct exposure to the light source, it is necessary to place the light-transmitting sheet 32 with a light-diffusing function in the middle; and the light emitted from the light-transmitting cover frame 31 will be reflected on the metal reflector 4, so the light-transmitting cover frame The body 31 does not need to have a light diffusion function, and can be made of a transparent material to ensure the light intensity of the LED floodlight.

Further, please refer to FIG. 3 , as a specific embodiment of the LED floodlight provided by the present invention, the rear side of the translucent cover 3 is provided with a buckle 33 , and the bottom plate 42 of the metal reflector 4 is correspondingly provided with a card slot 43 . When the light-transmitting cover 3 is installed into the bottom plate 42 , the buckle 33 and the slot 43 form an inverted structure, so that the light-transmitting cover 3 and the bottom plate 42 are not easy to fall off. In addition to this embodiment, a pair of buckles can also be provided on the bottom plate 42 , and a slot can be provided at a corresponding position on the rear side of the light-transmitting cover 3 .

Further, please refer to FIG. 3 , as a specific embodiment of the LED floodlight provided by the present invention, four buckles 33 protrude from the rear side of the light-transmitting cover 3 , and the buckles 33 are fixed on the bottom plate of the metal reflector 4 On 42, the convex point side of buckle 33 protrudes 0.7mm than the slot 43, the width of buckle 33 is 4mm, the thickness is 1.5mm, and the height is 4mm.

Further, please refer to Fig. 4 to Fig. 6 together. As a specific embodiment of the LED floodlight provided by the present invention, a plurality of heat dissipation strips 611 are arranged on the front side of the back plate 61 of the rear shell 6, and the back plate 61 A plurality of heat dissipation slots 612 corresponding to the heat dissipation strips 611 are disposed on the rear side. The heat dissipation strips 611 and the heat dissipation grooves 612 can increase the air contact area between the back plate 6 and the inside and outside of the LED floodlight lamp, and improve the heat dissipation effect.

Further, please refer to Fig. 4 to Fig. 6 together. As a specific embodiment of the LED floodlight provided by the present invention, the heat dissipation strips 611 are vertically arranged on the back plate 6, and the heat dissipation strips 611 are equidistant from each other. Parallel, the heat dissipation strips 611 in the middle are longer than the heat dissipation strips 611 on both sides, and the heat dissipation grooves 612 are distributed correspondingly to the heat dissipation strips 611 . The heat generated by the LED floodlight is mainly concentrated in the middle. The above-mentioned heat dissipation strips 611 and heat dissipation grooves 622 are distributed in such a way that the heat dissipation in each position of the back plate is uniform, the degree of thermal expansion of each position of the back plate is consistent, and the internal stress is balanced.

Further, as a specific embodiment of the LED floodlight provided by the present invention, the metal reflector cup 4 is made of aluminum through die-casting process. The aluminum metal reflector cup 4 has low cost, good thermal conductivity, and strong reflective ability on the surface after die-casting. Except for this embodiment, the metal reflective cup 4 can also be made of copper, iron and other materials that have both reflective performance and thermal conductivity.

Furthermore, as a specific embodiment of the LED floodlight provided by the present invention, the transparent plate 2 is made of glass. Except for this embodiment, the light-transmitting cup 2 can also be made of high light-transmitting materials such as PC or acrylic.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

1.LED floodlights, including bonnet and light source driving integrated board, one end of the light source driving integrated board have LED light group, It is characterized in that：The front end of the bonnet is covered with light-passing board, and the bonnet includes backboard and extended forward by the backboard Side plate, the backboard and the side plate are surrounded to form holding area, and metal reflective cup is mounted with the holding area；The gold Category reflector has the bottom plate for supporting the LED light group and opened in flaring shape side wall, the side wall adjacent to the position of the bottom plate The opening that one end provided with the close LED light group for light source driving integrated board passes through.

2. LED floodlight as claimed in claim 1, it is characterised in that：The sidewall thickness of the metal reflective cup is from the bottom Plate is gradually thinning at the rim of a cup of the metal reflective cup.

3. the LED floodlight as described in any one of claim 1 and 2, it is characterised in that：The printing opacity front edge of board fastening has hollow Front frame；The front frame is connected with the bonnet by fastener, and the light-passing board is locking.

4. the LED floodlight as described in any one of claim 1 and 2, it is characterised in that：The backboard is provided with outer for accessing The water joint of portion's power supply.

5. the LED floodlight as described in any one of claim 1 and 2, it is characterised in that：Also include U-shaped support, the U-shaped branch The both ends of frame are respectively hinged at the both sides of the bonnet.

6. the LED floodlight as described in any one of claim 1 and 2, it is characterised in that：Also include saturating with light diffusion function Light shield, the diffuser are installed on the bottom plate, the LED light group of the diffuser cover said light source driving integrated board.

7. LED floodlight as claimed in claim 6, it is characterised in that：The diffuser include transparent diffuser framework, with And the light transmission piece with light diffusion function, the light transmission piece are installed in the diffuser framework.

8. LED floodlight as claimed in claim 7, it is characterised in that：Buckle is provided with rear side of the diffuser, the metal is anti- Light bottom of a cup plate is provided with and the neck being clasped.

9. the LED floodlight as described in any one of claim 1 and 2, it is characterised in that：It is provided with front side of backboard described in the bonnet Multiple heat sink strips, the backboard rear side are provided with radiating groove corresponding with the heat sink strip.

10. LED floodlight as claimed in claim 9, it is characterised in that：The heat sink strip parallel equidistant distribution；It is multiple described In heat sink strip：The heat sink strip length at middle part is more than heat sink strip length described in both sides.