Split type PAR lamp

Abstract

The split type PAR lamp comprises a light source plate and a heat dissipation plate attached to the light source plate, heat dissipation fins are fixed to the side, away from the light source plate, of the heat dissipation plate, and a switching power supply assembly is arranged on the side, away from the heat dissipation plate, of the heat dissipation fins. The LED lamp further comprises a front cover covering the light source plate, a heat dissipation barrel covering the heat dissipation fins and a rear cover covering the switching power supply assembly, and the front cover, the heat dissipation barrel and the rear cover are sequentially connected in a spliced mode. According to the split type PAR lamp, the heat dissipation plate and the heat dissipation barrel are designed in a separated mode, the heat dissipation fins are fixed to the side, away from the light source plate, of the heat dissipation plate, heat absorbed by the heat dissipation plate from the light source plate is dissipated through the large-area heat dissipation fins, and therefore the heat dissipation efficiency is improved, the split type PAR lamp is suitable for PAR lamps with higher power, and the service life of the PAR lamp is prolonged. And the heat dissipation plate is separated from the heat dissipation cylinder, so that the heat dissipation fins can be conveniently mounted on the heat dissipation plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of the PAR lamp, more particularly to a split type PAR lamp. BACKGROUND

[0002] The PAR lamp is directly cooled by the shell due to low power, such as the one disclosed in patent CN220524057U, which installs the light source board on the partition plate 36 of the integrally formed heat sink 30, uses the heat dissipation fins 35 on the integrally formed heat sink 30 to dissipate heat, and installs the control circuit element 32 in the cavity of the heat sink 30. This method can meet daily needs, but it is slightly insufficient for large-power PAR lamps. SUMMARY

[0003] The utility model discloses a split type PAR lamp to overcome at least one of the above-mentioned defects of the prior art, which can better cool the light source board.

[0004] To solve the above technical problems, the utility model adopts the technical scheme of a split type PAR lamp, which comprises a light source board and a heat sink plate arranged in close contact with the light source board, the heat sink plate is fixed with heat dissipation fins on the side away from the light source board, the heat dissipation fins are provided with a switching power supply assembly on the side away from the heat sink plate, and the PAR lamp further comprises a front cover covering the light source board, a heat dissipation cylinder covering the heat dissipation fins, and a rear cover covering the switching power supply assembly, the front cover, the heat dissipation cylinder and the rear cover are connected in sequence by splicing.

[0005] The split type PAR lamp is designed by separating the heat sink plate and the heat dissipation cylinder, and the heat dissipation fins are fixed on the side of the heat sink plate away from the light source board to absorb the heat from the light source board and dissipate it through the large-area heat dissipation fins, thereby improving the heat dissipation efficiency and adapting to larger-power PAR lamps. Since the heat sink plate and the heat dissipation cylinder are separated, the heat dissipation fins can be conveniently installed on the heat sink plate.

[0006] Further, the light source board is detachably fixed to the heat sink plate, and the heat sink plate is detachably fixed to the heat dissipation cylinder. The heat sink plate can further transfer its heat to the heat dissipation cylinder, which is cooled by the heat dissipation cylinder, thereby improving the efficiency.

[0007] Further, the heat dissipation cylinder has a plurality of heat dissipation grilles, and adjacent heat dissipation grilles form ventilation openings that communicate the inside and outside of the heat dissipation cylinder. The cold air outside the PAR lamp can enter its interior through the ventilation openings to cool the heat dissipation fins, thereby achieving better heat dissipation effect.

[0008] Further, the heat dissipation cylinder is made of metal material, the heat dissipation grids extend along the length direction of the heat dissipation cylinder and radiate away from the heat dissipation cylinder, the heat dissipation cylinder made of metal material can conduct heat faster, the heat dissipation grids can play the role of guiding flow and the role of the heat dissipation fins to dissipate heat.

[0009] Further, the heat dissipation cylinder is made of metal material, the heat dissipation grids extend along the length direction of the heat dissipation cylinder and radiate away from the heat dissipation cylinder, the heat dissipation cylinder made of metal material can conduct heat faster, the heat dissipation grids can play the role of guiding flow and the role of the heat dissipation fins to dissipate heat.

[0010] Further, the heat dissipation cylinder is made of metal material, the heat dissipation grids extend along the length direction of the heat dissipation cylinder and radiate away from the heat dissipation cylinder, the heat dissipation cylinder made of metal material can conduct heat faster, the heat dissipation grids can play the role of guiding flow and the role of the heat dissipation fins to dissipate heat.

[0011] Further, the heat dissipation cylinder is made of metal material, the heat dissipation grids extend along the length direction of the heat dissipation cylinder and radiate away from the heat dissipation cylinder, the heat dissipation cylinder made of metal material can conduct heat faster, the heat dissipation grids can play the role of guiding flow and the role of the heat dissipation fins to dissipate heat.

[0012] Further, the heat dissipation cylinder is made of metal material, the heat dissipation grids extend along the length direction of the heat dissipation cylinder and radiate away from the heat dissipation cylinder, the heat dissipation cylinder made of metal material can conduct heat faster, the heat dissipation grids can play the role of guiding flow and the role of the heat dissipation fins to dissipate heat.

[0013] Further, the heat dissipation cylinder is made of metal material, the heat dissipation grids extend along the length direction of the heat dissipation cylinder and radiate away from the heat dissipation cylinder, the heat dissipation cylinder made of metal material can conduct heat faster, the heat dissipation grids can play the role of guiding flow and the role of the heat dissipation fins to dissipate heat.

[0014] Further, the heat dissipation cylinder is made of metal material, the heat dissipation grids extend along the length direction of the heat dissipation cylinder and radiate away from the heat dissipation cylinder, the heat dissipation cylinder made of metal material can conduct heat faster, the heat dissipation grids can play the role of guiding flow and the role of the heat dissipation fins to dissipate heat. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is the explosion structure schematic view of the split type PAR lamp of the utility model.

[0016] Fig. 2 is the cooperation structure schematic view of the heat dissipation plate and the heat dissipation cylinder.

[0017] Fig. 3 is the cross section structure schematic view of the heat dissipation plate and the heat dissipation cylinder after combination.

[0018] IN THE DRAWINGS:

[0019] 100, front cover; 110, light source board; 120, lens board; 121, light collecting mirror; 130, motor; 140, transparent protective cover; 200, heat dissipation cylinder; 210, heat dissipation plate; 220, heat dissipation grid; 230, air vent; 240, filter screen; 250, fan; 260, heat pipe; 270, heat dissipation fin; 300, rear cover; 310, switching power supply assembly; 400, portable support; 410, locking member. DETAILED DESCRIPTION

[0020] The accompanying drawings are only used for illustrative description, and cannot be understood as limitation to the patent; in order to better illustrate the embodiment, some components in the drawings can be omitted, enlarged or reduced, and do not represent the size of the actual product; it is understandable for those skilled in the art that some well-known structures and their descriptions in the drawings can be omitted. The positional relationship described in the drawings is only used for illustrative description, and cannot be understood as limitation to the patent.

[0021] As Figs. 1 to 3 The utility model provides a split type par lamp, including light source board 110 and the heat dissipation plate 210 of fitting light source board 110 setting, the heat dissipation plate 210 is fixed with heat dissipation fin 270 away from light source board 110 side, heat dissipation fin 270 is provided with switching power supply assembly 310 away from heat dissipation plate 210 side, still include the front cover 100 of cover light source board 110, cover heat dissipation fin 270's heat dissipation cylinder 200 and cover switching power supply assembly 310's rear cover 300, front cover 100, heat dissipation cylinder 200 with rear cover 300 are connected in proper order and splice.

[0022] The split type par lamp is designed by separating the heat dissipation plate 210 and the heat dissipation cylinder 200, and the heat dissipation fin 270 is fixed on the side of the heat dissipation plate 210 away from the light source board 110. The heat dissipation plate 210 absorbs the heat from the light source board 110 and dissipates the heat through the large-area heat dissipation fin 270, thereby improving the heat dissipation efficiency and adapting to larger power par lamps. Since the heat dissipation plate 210 and the heat dissipation cylinder 200 are separated, the heat dissipation fin 270 can be easily installed on the heat dissipation plate 210.

[0023] Preferably, a heat-conducting paste or heat-conducting silica gel is arranged between the light source board 110 and the heat dissipation plate 210.

[0024] Preferably, the heat dissipation fin 270 is a plurality of fins and is arranged in parallel.

[0025] Preferably, the front cover 100 is provided with a light outlet at an end away from the light source board 110, and the light outlet is covered with a transparent protective cover 140.

[0026] Preferably, the front cover 100, the heat dissipation cylinder 200 and the rear cover 300 are sequentially locked by screws respectively.

[0027] Preferably, the front cover 100, the heat dissipation cylinder 200 and the rear cover 300 are all substantially circular in cross section.

[0028] In the preferred embodiment of the present application, the light source plate 110 is detachably fixed to the heat dissipation plate 210, and the heat dissipation plate 210 is detachably fixed to the heat dissipation cylinder 200. The heat dissipation plate 210 can further transfer heat to the heat dissipation cylinder 200, and the heat dissipation cylinder 200 is used for heat dissipation, thereby improving efficiency.

[0029] Preferably, the heat dissipation plate 210 is directly attached to the heat dissipation cylinder 200 for fast heat transfer.

[0030] In the preferred embodiment of the present application, the heat dissipation cylinder 200 has a plurality of heat dissipation grids 220, and adjacent heat dissipation grids 220 form a ventilation opening 230 for communication between the inside and outside of the heat dissipation cylinder 200. Cold air outside the PAR lamp can enter the inside of the PAR lamp through the ventilation opening 230 to dissipate heat of the heat dissipation fins 270, thereby achieving better heat dissipation effect.

[0031] In the preferred embodiment of the present application, the heat dissipation cylinder 200 is made of metal, the heat dissipation grids 220 extend along the length direction of the heat dissipation cylinder 200 and radiate away from the heat dissipation cylinder 200. The heat dissipation cylinder 200 made of metal can conduct heat faster, and adjacent two heat dissipation grids 220 form an air guide channel to the center of the heat dissipation cylinder 200. The heat dissipation grids 220 can play a role of air guide and also play a role of heat dissipation similar to the heat dissipation fins 270.

[0032] Preferably, the heat dissipation cylinder 200 is made of aluminum and is die cast.

[0033] In the preferred embodiment of the present application, the heat dissipation cylinder 200 is provided with a filter screen 240 at the ventilation opening 230. The filter screen 240 can prevent sundries, dust or raindrops outside the PAR lamp from entering the inside of the PAR lamp through the ventilation opening 230, thereby affecting normal work of the PAR lamp.

[0034] Preferably, the filter screen 240 is an integral piece and surrounds the periphery of the heat dissipation cylinder 200 to cover all the ventilation openings 230.

[0035] Preferably, the filter screen 240 is a metal screen.

[0036] In the preferred embodiment of the utility model, the heat dissipation cylinder 200 is pivotally connected with a hand-held support 400. The hand-held support 400 can support the PAR lamp when the PAR lamp is placed and can provide a grip when the PAR lamp is moved.

[0037] Preferably, the hand-held support 400 is in the shape of U, and the two open ends are pivotally connected to the heat dissipation cylinder 200.

[0038] Preferably, the hand-held support 400 further comprises a locking member 410 for fixing the angle of the hand-held support 400 relative to the heat dissipation cylinder 200 after the hand-held support 400 is rotated by any angle.

[0039] In the preferred embodiment of the utility model, the heat dissipation cylinder 200 is further provided with a fan 250 for dissipating heat from the heat dissipation fins 270. The fan 250 can accelerate the heat exchange between the heat dissipation fins 270 and air.

[0040] Preferably, the air outlet direction of the fan 250 is parallel to the plane in which the heat dissipation fins 270 are located.

[0041] Preferably, the fan 250 is located between the heat dissipation fins 270 and the switching power supply assembly 310, and the air sucked by the fan 250 is used to dissipate heat from the switching power supply assembly 310.

[0042] Preferably, the number of the fan 250 is two or more.

[0043] In the preferred embodiment of the utility model, the heat pipe 260 is further provided, and the heat pipe 260 is in close contact with the light source plate 110 after passing through the heat dissipation plate 210. The heat pipe 260 can more quickly and directly conduct the heat of the light source plate 110 and the heat dissipation plate 210 to the heat dissipation fins 270, thereby improving the heat dissipation efficiency of the light source plate 110.

[0044] Preferably, the portions of the four heat pipes 260 in close contact with the light source plate 110 are arranged in a square shape, and the portion of the other heat pipe 260 in close contact with the light source plate 110 extends along the diagonal of the square.

[0045] In the preferred embodiment of the utility model, the front cover 100 is further provided with a lens plate 120 and a motor 130 for driving the lens plate 120 to move close to or away from the light source plate 110. The lens plate 120 can be moved to adjust the clarity or size of the light spot.

[0046] The light source plate 110 is provided with a plurality of LED light sources, and the lens plate 120 is provided with a light collector 121 corresponding to each LED light source.

[0047] In the preferred embodiment of the utility model, the rotating shaft of the motor 130 is a screw rod, and the screw rod is threadedly connected with the heat dissipation cylinder 200. When the screw rod of the motor 130 rotates, the screw rod enters the heat dissipation cylinder 200 to different depths, thereby pulling the lens plate 120 connected with the motor 130 to be close to or away from the light source plate 110.

[0048] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments are not enumerated. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A split-type PAR lamp, characterized in that, The device includes a light source board (110) and a heat sink (210) attached to the light source board (110). A heat sink fin (270) is fixed on the side of the heat sink (210) away from the light source board (110). A switching power supply assembly (310) is provided on the side of the heat sink fin (270) away from the heat sink (210). The device also includes a front cover (100) covering the light source board (110), a heat sink cylinder (200) covering the heat sink fin (270), and a rear cover (300) covering the switching power supply assembly (310). The front cover (100), the heat sink cylinder (200), and the rear cover (300) are sequentially spliced ​​together.

2. The split-type PAR lamp according to claim 1, characterized in that, The light source board (110) is detachably fixed to the heat sink (210), and the heat sink (210) is detachably fixed to the heat sink cylinder (200).

3. The split-type PAR lamp according to claim 1 or 2, characterized in that, The heat sink (200) has a plurality of heat dissipation grilles (220), and ventilation openings (230) are formed between adjacent heat dissipation grilles (220) to connect the inside and outside of the heat sink (200).

4. The split-type PAR lamp according to claim 3, characterized in that, The heat sink (200) is made of metal, and the heat dissipation grille (220) extends along the length of the heat sink (200) and radiates away from the heat sink (200).

5. The split-type PAR lamp according to claim 3, characterized in that, A filter screen (240) is provided inside the heat sink (200) at the vent (230).

6. The split-type PAR lamp according to claim 1, characterized in that, The heat sink (200) is pivotally connected to a carrying bracket (400).

7. The split-type PAR lamp according to claim 1, characterized in that, The heat sink (200) is also equipped with a fan (250) for cooling the heat sink fins (270).

8. The split-type PAR lamp according to claim 1, characterized in that, It also includes a heat pipe (260) that passes through the heat dissipation fins (270), and the heat pipe (260) passes through the heat dissipation plate (210) and is in close contact with the light source plate (110).

9. The split-type PAR lamp according to claim 1, characterized in that, The front cover (100) also contains a lens plate (120) and a motor (130) for driving the lens plate (120) to move closer to or further away from the light source plate (110).

10. The split-type PAR lamp according to claim 9, characterized in that, The motor (130) has a lead screw as its shaft, which is threadedly connected to the heat sink (200).

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