LED panel lamp with high heat dissipation performance

Abstract

The utility model relates to the field of light-emitting diode (LED) panel lamps, and discloses an LED panel lamp with high heat dissipation performance, which comprises a front cover, a light-transmitting film assembled with the front cover in a clamping way, a rear cover assembled with the front cover, and a lamp panel arranged in the rear cover, the LED panel lamp further comprises a heat dissipation cover installed on the rear cover in a penetrating mode and heat dissipation fins installed in the heat dissipation cover in an embedded and sliding mode and attached to the lamp panel to absorb the heat dissipation amount. The heat dissipation cover is provided with an open heat dissipation assembly for accelerating heat on the lamp panel to be discharged outwards. According to the starting temperature change of the lamp panel in the LED panel lamp, the heat dissipation fins and the open heat dissipation assembly in the panel lamp are selected to dissipate heat, the heat dissipation effect is good, the influence of moisture and dust particles in the air on the use of the lamp panel is reduced, and the service life of the LED panel lamp is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of LED panel lights, and particularly relates to an LED panel light with high heat dissipation performance. Background Technique

[0002] When an LED panel light starts to work, when current passes through a semiconductor material, resistance will be generated to generate heat. The higher the brightness of the LED panel light when it is turned on, the greater the amount of heat generated. Auxiliary heat dissipation materials are provided on the LED panel light. Common heat dissipation materials include aluminum substrates and copper substrates, which can conduct the heat generated by the LEDs out. Effective thermal management and heat dissipation technology are crucial for maintaining the performance and service life of LED lamps.

[0003] Chinese Patent CN204986559U discloses a structure of an LED direct-emitting panel light with direct heat dissipation of an LED PCB board. The LED direct-emitting panel light structure is composed of a plastic bottom cover, a plastic face cover, a PCB lamp board, a light-transmitting plate and a spring. The PCB lamp board serves both the function of the PCB lamp board and the function of the aluminum backplane in the prior art, eliminating the assembly process between the PCB lamp board and the aluminum backplane in the prior art. Instead, the PCB lamp board is in direct contact with the air, and the heat dissipated by the PCB lamp board is directly released into the air, which is beneficial to improving the heat dissipation speed of the entire LED direct-emitting lamp board and achieving better heat dissipation effect.

[0004] Installing the LED lamp board directly in contact with the air in the lamp shade can improve the heat dissipation effect. However, the humidity and dust particles in the air will interfere with the power-on use of the LED lamp board and affect the service life of the LED lamp board. Absorbing the heat of the LED lamp board through a heat dissipation substrate and conducting it outwards can protect the LED lamp board, but the heat dissipation effect of heat conduction is limited, and it cannot quickly cool the LED lamp board in the case of high temperature of the LED lamp board. In addition, the housing for installing the LED lamp board is prone to deformation under the influence of high temperature, which is not conducive to the stable installation and use of the LED panel light. Content of the Utility Model

[0005] Aiming at the above problems, an LED panel light with high heat dissipation performance is provided. By combining an open heat dissipation component and a heat sink for heat dissipation, it solves the problems that installing the LED lamp board directly in contact with the air in the lamp shade can improve the heat dissipation effect, but the humidity and dust particles in the air will interfere with the power-on use of the LED lamp board and affect the service life of the LED lamp board, and absorbing the heat of the LED lamp board through a heat dissipation substrate and conducting it outwards can better protect the LED lamp board, but the heat dissipation effect of heat conduction is limited, and it cannot quickly cool the LED lamp board in the case of high temperature of the LED lamp board, etc.

[0006] To solve the problems of the existing technology, the utility model provides an LED panel lamp with high heat dissipation performance, which includes a front cover, a light-transmitting film snap-fitted with the front cover, a rear cover assembled with the front cover, and a lamp board installed in the rear cover. The LED panel lamp further includes a heat dissipation cover installed through the rear cover, and heat dissipation fins fitted and slidably installed in the heat dissipation cover and attached to the lamp board to absorb and dissipate heat; an open heat dissipation component for accelerating the external discharge of heat from the lamp board is arranged on the heat dissipation cover.

[0007] Preferably, the open heat dissipation component includes a plurality of heat dissipation ring rings installed through the side wall of the heat dissipation cover, and a blocking block for restricting heat flow is slidably installed in the heat dissipation ring ring.

[0008] Preferably, a T-shaped frame is fixed in the heat dissipation cover, a sliding column is horizontally slidably installed on the T-shaped frame, a sliding ring is longitudinally slidably installed on the T-shaped frame, a driving rod is rotatably installed on the sliding ring, and the driving rod is rotatably assembled with the sliding column.

[0009] Preferably, a fixing piece is fixedly installed on the sliding ring, the fixing piece is slidably connected with the heat dissipation cover, and the fixing piece is fixedly assembled with the heat dissipation fin.

[0010] Preferably, a temperature sensor for detecting the temperature of the lamp board is installed in the heat dissipation cover; an electric drive telescopic rod is fixedly installed in the heat dissipation cover, a lifting angle block is fixed at the lifting end of the electric drive telescopic rod, and the lifting angle block is fixedly assembled with the sliding ring.

[0011] Preferably, an assembly component for assisting the assembly of the front cover is arranged in the rear cover.

[0012] Preferably, the assembly component includes a plurality of elastic clamping blocks fixedly installed in the rear cover, a linear limiting strip is connected between adjacent elastic clamping blocks in a horizontal row, an inclined plane limiting strip is connected between two elastic clamping blocks perpendicular to each other at the right angle of the rear cover, a support block is connected between the inclined plane limiting strip and the rear cover, and a triangular groove corresponding to the position of the support block is opened at the corner of the front cover.

[0013] The beneficial effects of the utility model compared with the existing technology are as follows:

[0014] 1. In the utility model, two heat dissipation structures, namely heat dissipation fins and an open heat dissipation component, are combined to dissipate the heat generated when the lamp board is started. When the heat generated when the lamp board is started is within a relatively low value range, the heat dissipation fins are attached to the lamp board to conduct heat outward, realizing the external discharge of heat. When the heat generated when the lamp board is started is relatively high, the electric drive telescopic rod is operated to control the lifting angle block to move downward, driving the sliding ring and the fixing piece to move downward synchronously. The driving rod connected between the sliding ring and the sliding column rotates to push the sliding column and the blocking block to move outward, so that the heat dissipation ring ring is in an open state, so that the heat in the heat dissipation cover can be directly discharged outward, improving the heat dissipation effect of the panel lamp. Through the two heat dissipation structures, the stable use of the panel lamp can be effectively maintained.

[0015] 2. An assembly component is provided in the present utility model to strengthen the assembly between the front cover and the rear cover. The front cover is snap-fitted and installed in the rear cover. The elastic clamping blocks in the rear cover are elastically pressed against the edge of the front cover. And a bevel limiting strip and a support block are connected between the two elastic clamping blocks at the right angle of the rear cover. Through the support structure, the stability of the assembly between the front cover and the rear cover can be maintained, avoiding the deformation of the front cover or the rear cover under the high temperature when the lamp board is started, which affects the assembly of the housing. Description of the Drawings

[0016] Figure 1 is a three-dimensional structural schematic diagram of the front cover of a high heat dissipation performance LED panel light.

[0017] Figure 2 is a three-dimensional structural schematic diagram of the rear cover of a high heat dissipation performance LED panel light.

[0018] Figure 3 is a three-dimensional structural schematic diagram of the lamp board of a high heat dissipation performance LED panel light.

[0019] Figure 4 is a three-dimensional structural schematic diagram of the assembly component of a high heat dissipation performance LED panel light.

[0020] Figure 5 is a three-dimensional structural schematic diagram of the heat sink of a high heat dissipation performance LED panel light.

[0021] Figure 6 is a three-dimensional structural schematic diagram of the heat dissipation cover of a high heat dissipation performance LED panel light.

[0022] Figure 7 is a three-dimensional structural schematic diagram of the temperature sensor of a high heat dissipation performance LED panel light.

[0023] Figure 8 is a three-dimensional structural schematic diagram of the plugging block of a high heat dissipation performance LED panel light.

[0024] Figure 9 is a three-dimensional structural schematic diagram of the elastic clamping block of a high heat dissipation performance LED panel light.

[0025] Figure 10 is a three-dimensional structural schematic diagram of the support block of a high heat dissipation performance LED panel light.

[0026] The reference numerals in the figure are:

[0027] 1. Front cover; 11. Transparent film; 12. Rear cover; 13. Lamp board; 21. Heat dissipation cover; 22. Heat sink; 23. Open heat dissipation component; 231. Heat dissipation ring; 232. Plugging block; 233. T-shaped frame; 234. Slide post; 235. Slide ring; 2351. Fixed piece; 2352. Electric drive telescopic rod; 2353. Lifting angle block; 236. Drive rod; 24. Temperature sensor; 3. Assembly component; 31. Elastic clamping block; 32. Linear limiting strip; 33. Inclined plane limiting strip; 34. Support block; 35. Triangular groove. Specific embodiments

[0028] To further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be described in further detail below in conjunction with the drawings and specific embodiments.

[0029] See Figures 1 - 6 As shown, an LED panel light with high heat dissipation performance includes a front cover 1, a transparent film 11 snap-fitted with the front cover 1, a rear cover 12 combined and installed with the front cover 1, and a lamp board 13 installed in the rear cover 12. The LED panel light further includes a heat dissipation cover 21 installed through the rear cover 12, and a heat sink 22 fitted and slidably installed in the heat dissipation cover 21 and attached to the lamp board 13 to absorb and dissipate heat; an open heat dissipation component 23 for accelerating the outward discharge of heat on the lamp board 13 is provided on the heat dissipation cover 21; there is a gap between the upper end surface of the heat dissipation cover 21 and the bottom of the lamp board 13 without direct contact, a rectangular groove is provided in the center of the heat dissipation cover 21, and the heat sink 22 is fitted and slidably assembled in the rectangular groove of the heat dissipation cover 21, and the position of the heat sink 22 corresponding to the lower part of the lamp board 13 is adjusted according to the heat dissipation method.

[0030] When the heat generated by the start of the lamp board 13 is in the low temperature range, the heat sink 22 is attached to the bottom of the lamp board 13, the heat on the lamp board 13 is transferred to the heat sink 22, and the heat is conducted outward through the heat sink 22. When the lamp board 13 starts to generate heat at a higher temperature, the heat sink 22 is controlled to move downward and separate from the lamp board 13, so that the heat generated on the lamp board 13 is concentrated in the heat dissipation cover 21, and the heat in the heat dissipation cover 21 is directly discharged to the outside through the open heat dissipation component 23, accelerating the outward discharge of heat and improving the heat dissipation effect of the LED panel light.

[0031] See Figures 5 - 8 As shown, the open heat dissipation component 23 includes a plurality of heat dissipation rings 231 installed through the side wall of the heat dissipation cover 21, and a plugging block 232 for restricting the flow of heat is slidably installed in the heat dissipation ring 231.

[0032] Control the plugging block 232 to be pushed outward in the heat dissipation ring 231, so that the plugging block 232 moves away from the heat dissipation ring 231, and the heat dissipation ring 231 is in an open state, so that the heat in the heat dissipation cover 21 can be discharged to the outside through the heat dissipation ring 231.

[0033] See Figures 5 - 8 As shown, a T-shaped frame 233 is fixed in the heat dissipation cover 21. A sliding column 234 is horizontally slidably mounted on the T-shaped frame 233. A sliding ring 235 is longitudinally slidably mounted on the T-shaped frame 233. A driving rod 236 is rotatably mounted on the sliding ring 235. The driving rod 236 is rotatably assembled with the sliding column 234.

[0034] Control the sliding ring 235 to slide downwards sleeved on the T-shaped frame 233. The driving rod 236 connected between the sliding ring 235 and the sliding column 234 rotates correspondingly. The rotating driving rod 236 pushes the sliding column 234 to move horizontally. The sliding column 234 pushes the plugging block 232 to move outwards of the heat dissipation ring 231, so as to adjust the opening and closing states of the heat dissipation ring 231.

[0035] See Figures 5 - 8 As shown, a fixing piece 2351 is fixedly mounted on the sliding ring 235. The fixing piece 2351 is slidably connected with the heat dissipation cover 21. The fixing piece 2351 is fixedly assembled with the heat dissipation fin 22.

[0036] When the sliding ring 235 longitudinally moves sleeved on the T-shaped frame 233, the heat dissipation fin 22 is driven to longitudinally move synchronously through the fixing piece 2351, so as to adjust the position of the heat dissipation fin 22 below the lamp panel 13 correspondingly, thereby switching between two heat dissipation modes of the LED panel lamp, so as to quickly and effectively dissipate heat from the LED, and at the same time reduce the interference of humidity and dust particles in the air to the use of the lamp panel 13, and improve the service life of the LED panel lamp.

[0037] See Figures 5 - 8 As shown, a temperature sensor 24 for detecting the temperature of the lamp panel 13 is installed in the heat dissipation cover 21; an electric drive telescopic rod 2352 is fixedly mounted in the heat dissipation cover 21. A lifting angle block 2353 is fixed at the lifting end of the electric drive telescopic rod 2352. The lifting angle block 2353 is fixedly assembled with the sliding ring 235.

[0038] The temperature in the heat dissipation cover 21 is detected by the temperature sensor 24. According to the change of the detected temperature, two heat dissipation modes of the panel lamp are adjusted. When there is more heat accumulated inside the heat dissipation cover 21, control the electric drive telescopic rod 2352 to operate to drive the lifting angle block 2353 to move downwards. The lifting angle block 2353 controls the sliding ring 235, the fixing piece 2351 and the heat dissipation fin 22 to move downwards synchronously. The opening and closing state of the heat dissipation ring 231 can be adjusted through the downward moving sliding ring 235.

[0039] See Figures 3 - 5 、 Figure 9 and Figure 10 As shown, an assembly component 3 for assisting the assembly of the front cover 1 is provided in the rear cover 12.

[0040] When controlling the assembly between the front cover 1 and the rear cover 12, with the assistance of the assembly component 3, the installation between the front cover 1 and the rear cover 12 can be strengthened, and the deformation of the front cover 1 and the rear cover 12 during assembly due to the high temperature of the lamp board 13 can be effectively avoided.

[0041] See Figure 9 and Figure 10 As shown, the assembly component 3 includes a plurality of elastic blocks 31 fixedly installed in the rear cover 12. A linear limiting strip 32 is connected between adjacent elastic blocks 31 in the horizontal row. An inclined surface limiting strip 33 is connected between two elastic blocks 31 perpendicular to each other at the right angle of the rear cover 12. A support block 34 is connected between the inclined surface limiting strip 33 and the rear cover 12. A triangular groove 35 corresponding to the position of the support block 34 is provided at the corner of the front cover 1.

[0042] The front cover 1 is snap-fitted and installed in the rear cover 12. The four lower edges of the front cover 1 are limited by the snap-fitting of the elastic blocks 31. The edge of the front cover 1 is pressed between the elastic blocks 31 and the rear cover 12. And the elastic blocks 31 at multiple positions in the rear cover 12 are interconnected by the linear limiting strip 32 and the inclined surface limiting strip 33 to maintain the combined assembly form at the edges of the front cover 1 and the rear cover 12, avoiding the situation that the front cover 1 and the rear cover 12 are deformed due to the high temperature of the lamp board 13 and affecting the assembly and use.

[0043] The above embodiments only represent one or several implementation manners of the present utility model, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the appended claims.

Claims

1. An LED panel light with high heat dissipation performance, comprising a front cover (1), a light-transmitting film (11) snap-fitted with the front cover (1), a rear cover (12) assembled with the front cover (1), and a lamp board (13) installed in the rear cover (12), characterized in that: The LED panel light further includes a heat dissipation cover (21) penetrating and installed on the rear cover (12), and a heat sink (22) fitted and slidably installed in the heat dissipation cover (21) and attached to the lamp board (13) to absorb and dissipate heat; An open heat dissipation component (23) for accelerating the outward dissipation of heat on the lamp board (13) is provided on the heat dissipation cover (21).

2. The high heat dissipation performance LED panel lamp according to claim 1, characterized in that: The open heat dissipation component (23) includes a plurality of heat dissipation ringlets (231) penetrating and installed on the side wall of the heat dissipation cover (21), and a blocking block (232) for restricting the flow of heat is slidably installed in the heat dissipation ringlets (231).

3. The high heat dissipation performance LED panel lamp according to claim 2, characterized in that: A T-shaped frame (233) is fixed in the heat dissipation cover (21), a sliding column (234) is horizontally slidably installed on the T-shaped frame (233), a sliding ring (235) is longitudinally slidably installed on the T-shaped frame (233), a driving rod (236) is rotatably installed on the sliding ring (235), and the driving rod (236) is rotatably assembled with the sliding column (234).

4. The high heat dissipation performance LED panel lamp according to claim 3, characterized in that: A fixing piece (2351) is fixedly installed on the sliding ring (235), the fixing piece (2351) is slidably connected to the heat dissipation cover (21), and the fixing piece (2351) is fixedly assembled with the heat sink (22).

5. The high heat dissipation performance LED panel light according to claim 3, characterized in that: A temperature sensor (24) for detecting the temperature of the lamp board (13) is installed in the heat dissipation cover (21); An electric drive telescopic rod (2352) is fixedly installed in the heat dissipation cover (21), a lifting angle block (2353) is fixed at the lifting end of the electric drive telescopic rod (2352), and the lifting angle block (2353) is fixedly assembled with the sliding ring (235).

6. The high heat dissipation performance LED panel lamp according to claim 1, wherein: An assembly component (3) for assisting the assembly of the front cover (1) is provided in the rear cover (12).

7. The high heat dissipation performance LED panel light according to claim 6, wherein: The assembly component (3) includes a plurality of elastic blocks (31) fixedly installed in the rear cover (12), a linear limiting strip (32) is connected between the horizontally adjacent elastic blocks (31), an inclined surface limiting strip (33) is connected between the two elastic blocks (31) perpendicular to each other at the right angle of the rear cover (12), a support block (34) is connected between the inclined surface limiting strip (33) and the rear cover (12), and a triangular groove (35) corresponding to the position of the support block (34) is opened at the corner of the front cover (1).

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