Heat dissipation device for LED projection lamp

Abstract

The utility model relates to the technical field of LED (light-emitting diode) projection lamps, in particular to a heat dissipation device for an LED projection lamp, which is characterized in that an inner cavity is arranged inside a projection lamp mounting box, and an opening is arranged at the upper end of the projection lamp mounting box; an air outlet communicated with the inner cavity is formed in one side face of the projection lamp mounting box, and an exhaust fan is arranged in the air outlet; an air inlet is formed in the projection lamp mounting box, a partition plate is arranged between the projection lamp mounting box and the LED projection lamp, and the partition plate is matched with the projection lamp mounting box and the LED projection lamp to form a one-way ventilating duct; and a dustproof filter screen is arranged in the air inlet. The air outlet and the air inlet are formed in the projection lamp mounting box, after the LED projection lamp is mounted in the inner cavity of the projection lamp mounting box, the LED projection lamp is matched with the inner side wall of the projection lamp mounting box to form the annular air duct, the partition plate is arranged in the inner cavity of the projection lamp mounting box, and the air outlet and the air inlet are divided by the partition plate to form the one-way ventilation duct. And the air flow cooling efficiency is prevented from being influenced by disordered flowing of the air flow.

Description

Technical Field

[0001] The utility model relates to the technical field of LED floodlights, and more specifically to a heat dissipation device for LED floodlights. Background Art

[0002] Existing LED floodlights will generate a lot of heat after long-term use, which will affect the operation of the LED floodlights. Existing LED floodlights all have a certain heat dissipation capacity, but the heat dissipation efficiency of the heat dissipation structure of the existing LED floodlights is slow. When the heat of the LED floodlight accumulates to a certain extent, the internal parts of the LED floodlight will be damaged, thereby affecting the normal use of the floodlight; the existing LED floodlights are in contact with the atmosphere for a long time, and dust is easily deposited, which affects the lighting of the LED floodlight.

[0003] Therefore, it is necessary to improve the prior art. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, a heat dissipation device for an LED floodlight having active heat dissipation capability and dustproof function is provided.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A heat dissipation device for an LED floodlight, comprising a floodlight installation box, wherein an inner cavity for accommodating the LED floodlight is arranged inside the floodlight installation box, and an opening for a lamp head of the LED floodlight to extend out is arranged at the upper end of the floodlight installation box;

[0007] An exhaust port connected to the inner cavity is arranged on one side of the floodlight installation box, and an exhaust fan is arranged in the exhaust port; an air inlet connected to the inner cavity is arranged on the floodlight installation box, and the air inlet and the air exhaust port are arranged on the same side of the floodlight installation box, and a partition is arranged between the floodlight installation box and the LED floodlight, and the partition is located between the air inlet and the air exhaust port and cooperates with the floodlight installation box and the LED floodlight to form a one-way ventilation duct;

[0008] A dust filter is arranged in the air inlet, a filter cleaning mechanism is arranged on the floodlight installation box, and an openable and closable protective device is arranged on the upper end of the floodlight installation box.

[0009] Preferably, the protection device comprises an annular protection cover and a cover plate, the annular protection cover is slidably arranged on the upper end of the floodlight installation box, and guide rails are symmetrically arranged on the upper ends of both sides of the floodlight installation box, and the guide rails comprise horizontal guide rails, arc guide rails and vertical guide rails that are connected in sequence, the horizontal guide rail is located on the upper side of the annular protection cover, and the vertical guide rail is located on one side of the floodlight installation box;

[0010] Two sliders are arranged on both sides of the cover plate, and the two sliders are slidably arranged in the guide rails on the corresponding side.

[0011] Preferably, a turntable is rotatably provided on one side of the floodlight mounting box, the turntable is connected to a rotary driver, the turntable is fixedly connected to a driving rod in the radial direction, and connecting rod I and connecting rod II are respectively hinged on the driving rod, the end of connecting rod I away from the driving rod is hinged to one side of the cover plate, and the end of connecting rod II away from the driving rod is hinged to one side of the annular protective cover.

[0012] Preferably, the rotary driver is a servo motor or a stepper motor.

[0013] Preferably, a wind shield ring is fixedly connected to the lower end of the annular protective cover, and the wind shield ring is slidably arranged in the inner cavity. When the annular protective cover extends out of the upper end of the floodlight mounting box, the wind shield ring fits with the air inlet and the air outlet to block the air flow; when the annular protective cover is inside the floodlight mounting box, the wind shield ring does not fit with the air inlet and the air outlet.

[0014] Preferably, the filter cleaning mechanism comprises a brush arranged on the wind shield ring, and when the wind shield ring moves up and down, the brush passes through the dustproof filter and cleans it.

[0015] Preferably, it also includes a first support plate, a second support plate and a support frame, the second support plate is rotatably arranged on the upper end of the first support plate, the support frame is fixedly arranged on the upper end of the second support plate, and the floodlight mounting box is rotatably arranged in the support frame via a mounting axis.

[0016] Preferably, an adjusting motor is provided between the first supporting plate and the second supporting plate, and between the supporting frame and the mounting shaft.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The utility model is provided with an exhaust port and an air inlet on the floodlight installation box. When the LED floodlight is installed in the inner cavity of the floodlight installation box, it cooperates with the inner wall of the floodlight installation box to form a ring-shaped air duct. The inner cavity of the floodlight installation box is provided with a partition, which divides the exhaust port and the air inlet to form a one-way ventilation duct, thereby preventing the airflow from flowing disorderly and affecting the heat dissipation efficiency of the airflow.

[0019] 2. The utility model is provided with an annular protective cover and a cover plate at the top of the floodlight installation box. When the LED floodlight is not in use, the annular protective cover is extended, and the cover plate covers the upper end of the annular protective cover to provide closed protection for the LED floodlight. When the LED floodlight is in use, the annular protective cover is retracted into the floodlight installation box, and the cover plate is moved to one side of the annular protective cover so that it does not affect the lighting of the LED floodlight.

[0020] 3. During the lifting and lowering process of the annular protective cover of the utility model, the wind shield ring can be driven to move to control the opening and closing of the exhaust port and the air inlet. At the same time, the dust on the dust filter of the air inlet can be cleaned by a brush to prevent the air inlet from being blocked by dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the overall state of the utility model when it is not working;

[0024] Figure 3 It is a schematic diagram of the overall state of the utility model when it is working;

[0025] Figure 4 This is a schematic diagram of the internal structure of the utility model when it is not working;

[0026] Figure 5 It is a schematic diagram of the internal structure of the utility model when it is working.

[0027] In the figure: 1-floodlight installation box, 11-inner cavity, 12-opening, 13-exhaust port, 14-air inlet, 2-LED floodlight, 3-exhaust fan, 4-partition, 5-dust filter, 6-protection device, 61-annular protective cover, 62-cover plate, 63-slider, 64-wind shield ring, 65-brush, 7-guide rail, 71-horizontal guide rail, 72-arc guide rail, 73-vertical guide rail, 8-turntable, 81-rotation drive, 82-drive rod, 83-connecting rod I, 84-connecting rod II, 9-first support plate, 91-second support plate, 92-support frame, 93-mounting shaft. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] like Figures 1 to 5 As shown, a heat dissipation device for an LED floodlight comprises a floodlight mounting box 1, wherein an inner cavity 11 for placing an LED floodlight 2 is arranged inside the floodlight mounting box 1, and an opening 12 is arranged at the upper end of the floodlight mounting box 1 for the lamp head of the LED floodlight 2 to extend out, so as to facilitate the light-emitting end of the LED floodlight 2 to work.

[0030] An annular air duct is formed between the LED floodlight 2 and the inner wall of the floodlight installation box 1. An exhaust port 13 connected to the inner cavity 11 is arranged on one side of the floodlight installation box 1. An air inlet 14 connected to the inner cavity 11 is arranged on the floodlight installation box 1. An exhaust fan 3 is arranged in the exhaust port 13. Air is drawn by the exhaust fan 3 to form a wind flow, thereby dissipating heat and cooling the LED floodlight 2 in the inner cavity.

[0031] In order to improve the heat dissipation effect, the air inlet 14 and the air outlet 13 are arranged on the same side of the floodlight installation box 1, and a partition 4 is arranged between the floodlight installation box 1 and the LED floodlight 2. The partition 4 is located between the air inlet 14 and the air outlet 13. The partition 4 divides the annular air duct, and then cooperates with the floodlight installation box 1 and the LED floodlight 2 to form a one-way ventilation duct to prevent the air entering from the air inlet 14 from being directly discharged from the exhaust fan 13, which affects the heat dissipation effect.

[0032] In order to prevent the LED floodlight 2 from accumulating dust due to long-term exposure to the air, an openable and closable protective device 6 is provided on the upper end of the floodlight installation box 1 .

[0033] Specifically, the protective device 6 includes an annular protective cover 61, which is slidably arranged on the upper end of the floodlight mounting box 1, and the annular protective cover 61 can be raised and lowered relative to the floodlight mounting box 1; a cover plate 62 is arranged at the upper end of the annular protective cover 61, and the cover plate 62 can cooperate with the annular protective cover 61 to close the LED floodlight 2.

[0034] Guide rails 7 are symmetrically arranged on the upper ends of both sides of the floodlight mounting box 1, and the guide rails 7 include a horizontal guide rail 71, an arc guide rail 72 and a vertical guide rail 73 which are connected in sequence. The horizontal guide rail 71 is located on the upper side of the annular protective cover 61, and the vertical guide rail 73 is located on one side of the floodlight mounting box 1; two sliders 63 are arranged on both sides of the cover plate 62, and the two sliders 63 are slidably arranged in the guide rail 7 on the corresponding side.

[0035] When the two sliders 63 are both located in the horizontal guide rail 71, the cover plate 62 is located at the upper end of the annular protective cover 61 and cooperates with it; when the two sliders 63 are both located in the vertical guide rail 73, the cover plate 62 is located on one side of the floodlight mounting box 1 to prevent affecting the normal operation of the LED floodlight 2.

[0036] In order to drive the annular protective cover 61 and the cover plate 62 to move synchronously, a turntable 8 is rotatably arranged on one side of the floodlight mounting box 1, and the turntable 8 is connected to a rotation driver 81. The rotation driver 81 can adopt a servo motor or a stepping motor. The turntable 8 is fixedly connected to a driving rod 82 in the radial direction, and connecting rods I 83 and connecting rods II 84 are hinged on the driving rod 82 respectively. The end of connecting rod I 83 away from the driving rod 82 is hinged to one side of the cover plate 62, and the end of connecting rod II 84 away from the driving rod 82 is hinged to one side of the annular protective cover 61.

[0037] When the rotary driver 81 rotates, it drives the driving rod 82 to rotate synchronously, and then drives the cover plate 62 and the annular protective cover 61 to move synchronously through the connecting rod I 83 and the connecting rod II 84 .

[0038] Preferably, a wind shield ring 64 is fixedly connected to the lower end of the annular protective cover 61, and the wind shield ring 64 moves synchronously with the annular protective cover. The wind shield ring 64 is slidably set in the inner cavity 11. When the annular protective cover 61 extends out of the upper end of the floodlight mounting box 1, the wind shield ring 64 fits with the air inlet 14 and the air outlet 13 to block the air flow; when the annular protective cover 61 is inside the floodlight mounting box 1, the wind shield ring 64 does not fit with the air inlet 14 and the air outlet 13, so that it can dissipate heat normally.

[0039] A dust filter 5 is provided in the air inlet 14 to prevent dust from entering the inner cavity 11, and a filter cleaning mechanism is provided on the floodlight mounting box 1. Specifically, the filter cleaning mechanism includes a brush 65 provided on the wind shield ring 64. When the wind shield ring 64 moves up and down, the brush 65 passes through the dust filter 5 and cleans it.

[0040] It also includes a first support plate 9, a second support plate 91 and a support frame 92. The second support plate 91 is rotatably arranged on the upper end of the first support plate 9, and the support frame 92 is fixedly arranged on the upper end of the second support plate 91. The floodlight installation box 1 is rotatably arranged in the support frame 92 through the installation shaft 93, so that the LED floodlight can be illuminated at multiple angles. Preferably, an adjustment motor is arranged between the first support plate 9 and the second support plate 91, and between the support frame 92 and the installation shaft 93, and the adjustment motor adopts an existing motor.

[0041] Only the preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention, and various changes should be included in the protection scope of the present invention.

Claims

1. A heat dissipation device for an LED floodlight, characterized in that: The invention comprises a floodlight installation box (1), wherein an inner cavity (11) for accommodating an LED floodlight (2) is provided inside the floodlight installation box (1), and an opening (12) for extending a lamp head of the LED floodlight (2) is provided at the upper end of the floodlight installation box (1); An exhaust port (13) communicating with the inner cavity (11) is arranged on one side of the floodlight installation box (1), and an exhaust fan (3) is arranged in the exhaust port (13); an air inlet (14) communicating with the inner cavity (11) is arranged on the floodlight installation box (1), the air inlet (14) and the exhaust port (13) are arranged on the same side of the floodlight installation box (1), a partition (4) is arranged between the floodlight installation box (1) and the LED floodlight (2), the partition (4) is located between the air inlet (14) and the exhaust port (13), and cooperates with the floodlight installation box (1) and the LED floodlight (2) to form a one-way ventilation duct; A dust filter (5) is provided in the air inlet (14), a filter cleaning mechanism is provided on the floodlight installation box (1), and an openable and closable protective device (6) is provided on the upper end of the floodlight installation box (1).

2. The heat dissipation device for an LED floodlight according to claim 1, characterized in that: The protective device (6) comprises an annular protective cover (61) and a cover plate (62); the annular protective cover (61) is slidably arranged on the upper end of the floodlight installation box (1); guide rails (7) are symmetrically arranged on the upper ends of both sides of the floodlight installation box (1); the guide rails (7) comprise a horizontal guide rail (71), an arc guide rail (72) and a vertical guide rail (73) which are connected in sequence; the horizontal guide rail (71) is located on the upper side of the annular protective cover (61), and the vertical guide rail (73) is located on one side of the floodlight installation box (1); Two sliders (63) are provided on both sides of the cover plate (62), and the two sliders (63) are slidably arranged in the guide rails (7) on the corresponding side.

3. The heat dissipation device for an LED floodlight according to claim 2, characterized in that: A turntable (8) is rotatably provided on one side of the floodlight installation box (1), the turntable (8) being connected to a rotation driver (81), the turntable (8) being fixedly connected to a driving rod (82) in a radial direction, a connecting rod I (83) and a connecting rod II (84) being hinged to the driving rod (82), respectively, an end of the connecting rod I (83) away from the driving rod (82) being hinged to one side of the cover plate (62), and an end of the connecting rod II (84) away from the driving rod (82) being hinged to one side of the annular protective cover (61).

4. The heat dissipation device for an LED floodlight according to claim 3, characterized in that: The rotary driver (81) is a servo motor or a stepper motor.

5. The heat dissipation device for an LED floodlight according to claim 2, characterized in that: The lower end of the annular protective cover (61) is fixedly connected to a wind shield ring (64), and the wind shield ring (64) is slidably arranged in the inner cavity (11). When the annular protective cover (61) extends out of the upper end of the floodlight installation box (1), the wind shield ring (64) fits with the air inlet (14) and the air outlet (13) to block the flow of air; when the annular protective cover (61) is inside the floodlight installation box (1), the wind shield ring (64) does not fit with the air inlet (14) and the air outlet (13).

6. The heat dissipation device for an LED floodlight according to claim 5, characterized in that: The filter screen cleaning mechanism comprises a brush (65) arranged on the wind shield ring (64); when the wind shield ring (64) moves up and down, the brush (65) passes through the dustproof filter screen (5) and cleans it.

7. The heat dissipation device for an LED floodlight according to claim 1, characterized in that: It also comprises a first support plate (9), a second support plate (91) and a support frame (92), wherein the second support plate (91) is rotatably arranged on the upper end of the first support plate (9), the support frame (92) is fixedly arranged on the upper end of the second support plate (91), and the floodlight installation box (1) is rotatably arranged in the support frame (92) via a mounting shaft (93).

8. The heat dissipation device for an LED floodlight according to claim 7, characterized in that: Adjustment motors are provided between the first support plate (9) and the second support plate (91), and between the support frame (92) and the mounting shaft (93).

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