LED lighting lamp with good heat dissipation performance

Abstract

The utility model discloses an LED lighting lamp with good heat dissipation performance, which comprises a fixing plate and an LED substrate, the fixing plate is provided with a mounting hole, the lower surface of the fixing plate is fixedly connected with a connecting column, the lower surface of the connecting column is fixedly provided with a shell, the lower end of the inner surface of the shell is provided with a mounting sleeve in a threaded manner, the mounting sleeve is provided with a light-transmitting cover, and the light-transmitting cover is provided with a light-emitting diode (LED) light source. A cooling fan is fixedly installed in the middle of the top face in the shell, and air outlets are formed in the positions, close to the upper ends, of the two ends of the shell. According to the LED lighting lamp with the good heat dissipation performance, when the LED lighting lamp needs to be disassembled and overhauled, the mounting sleeve is spirally taken down from the shell, then the rotating block is rotated, the rectangular clamping block is separated from the rectangular clamping grooves formed in the surfaces of the two ends of the interior of the mounting block and retracts into the first groove, the LED substrate moves downwards under the action of gravity, and the LED lighting lamp can be disassembled and overhauled. And therefore, the disassembly is completed, and the disassembly is simple and trouble-saving.

Description

Technical Field

[0001] This utility model relates to the field of LED lighting fixtures technology, and in particular to an LED lighting fixture with good heat dissipation performance. Background Technology

[0002] With the development of technology, LED lighting fixtures have been used more and more widely, especially LED ceiling lights, which are widely used for room lighting. For high-power LED ceiling lights, the LED power supply generates a lot of heat during operation. For example, according to "an LED lighting fixture with announcement number CN208846251U", during operation, the fixing plate is fixed to the ceiling of the room by expansion bolts, and the connecting column is connected to the fixing plate by bolts or clips, thus completing the fixing of the LED lighting fixture. During operation, the fan rotates, causing the air inside the LED lighting fixture to flow radially outward, and then flow out to the outside of the LED lighting fixture through the air outlet. The heat generated by the LED power supply during operation will be conducted to the LED. The air inside the LED lighting fixture is diffused radially outward through the air outlet, allowing the heat generated by the LED power supply to dissipate less and conduct less heat to the top cover. This significantly reduces the temperature of the ceiling and wall opposite the LED lighting fixture, effectively alleviating yellowing or blackening of the ceiling. Because the heat is effectively dissipated, the LED lighting fixture has a longer lifespan. However, because the light-transmitting cover is fixed to the bottom of the outer cylinder, the LED substrate is fixedly connected to the inner surface of the outer cylinder, the LED beads are located on the side of the LED substrate closest to the light-transmitting cover, and the LED power supply is fixed on the side of the LED substrate closest to the top cover, disassembling and repairing the LED lighting fixture is quite troublesome. Utility Model Content

[0003] The main objective of this invention is to provide an LED lighting fixture with good heat dissipation performance, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An LED lighting fixture with good heat dissipation performance includes a fixing plate and an LED substrate. The fixing plate has mounting holes. A connecting post is fixedly connected to the lower surface of the fixing plate. A housing is fixedly installed on the lower surface of the connecting post. A mounting sleeve is threaded onto the lower end of the inner surface of the housing. A light-transmitting cover is installed on the mounting sleeve. A cooling fan is fixedly installed in the middle of the top surface inside the housing. Air outlets are located near the upper ends of both ends of the housing, and air inlets are located below the air outlets at both ends of the housing. Partition plates are fixedly installed on both ends of the inner surface of the housing. Heat sinks are provided on both ends of the connecting post. LED beads are fixedly connected to the lower surface of the LED substrate. An LED power supply is fixedly installed in the middle of the upper surface of the LED substrate. Mounting structures are provided on the front and rear surfaces of the inner surface of the housing and the front and rear ends of the connecting post.

[0006] Preferably, the mounting structure includes a rotating block, a rotating rod, a mounting block, a docking block, a rectangular slot, a rectangular slider, a rectangular slide, a first bearing, a rectangular groove, a first bevel gear, a connecting rod, a second bevel gear, a second bearing, a threaded rod, a first groove, and a rectangular slot.

[0007] Preferably, mounting blocks are fixedly installed on both the front and rear surfaces inside the housing, and docking blocks are fixedly installed on the upper surface of the connecting column near the front and rear ends. A rectangular groove is opened inside the docking block, and a bearing is fixedly installed on the lower surface of the rectangular groove.

[0008] Preferably, a rotating rod is mounted on the first bearing, the rotating rod passes through the LED substrate, a rotating block is fixedly mounted on the lower surface of the rotating rod, and a first bevel gear is fixedly mounted on the upper surface of the rotating rod.

[0009] Preferably, a second bearing is fixedly installed on both ends of the rectangular groove, a connecting rod is installed on the second bearing, and threaded rods are fixedly connected to both ends of the connecting rod.

[0010] Preferably, a second bevel gear is fixedly installed on the middle part of the outer surface of the connecting rod near one end, and the second bevel gear fixedly installed on the middle part of the outer surface of the connecting rod near one end meshes with a first bevel gear fixedly installed on the upper surface of the rotating rod, and a rectangular locking block is threadedly installed on the outer surface of the threaded rod.

[0011] Preferably, a groove is formed on both ends of the docking block, and a rectangular sliding groove is formed on both the upper and lower surfaces of the groove. A rectangular slider is slidably installed in the rectangular sliding groove. A rectangular slider is fixedly installed on the other end of both the upper and lower surfaces of the rectangular block. A rectangular slot is formed on both ends of the inner surface of the mounting block.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In this utility model, the installation structure allows the mounting sleeve to be screwed off the housing when the LED lamp needs to be disassembled and repaired. Then, the rotating block is rotated to make the rectangular locking block disengage from the rectangular locking grooves opened on both ends of the mounting block and retract into the first groove. Under the action of gravity, the LED substrate moves downward, causing the docking block to disengage from the mounting block, thus completing the disassembly. This is simple and convenient. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an LED lighting fixture with good heat dissipation performance according to the present invention;

[0015] Figure 2 This is a cross-sectional view of an LED lighting fixture with good heat dissipation performance according to this utility model;

[0016] Figure 3 This is a partial cross-sectional view of an LED lighting fixture with good heat dissipation performance according to this utility model;

[0017] Figure 4 This utility model relates to an LED lighting fixture with good heat dissipation performance. Figure 3 Enlarged view of point A in the middle.

[0018] In the diagram: 1. Fixing plate; 101. Mounting hole; 2. Connecting column; 201. Housing; 3. Mounting sleeve; 301. Light-transmitting cover; 4. Cooling fan; 401. Partition plate; 402. Air outlet; 403. Air inlet; 404. Heat sink; 5. LED substrate; 501. LED beads; 502. LED power supply; 6. Mounting structure; 601. Rotating block; 602. Rotating rod; 603. Mounting block; 604. Connecting block; 605. Rectangular slot; 606. Rectangular slider; 607. Rectangular slide; 608. Bearing No. 1; 609. Rectangular groove; 610. Bevel gear No. 1; 611. Connecting rod; 612. Bevel gear No. 2; 613. Bearing No. 2; 614. Threaded rod; 615. Groove No. 1; 616. Rectangular block. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] like Figure 1-4As shown, an LED lighting fixture with good heat dissipation performance includes a fixing plate 1 and an LED substrate 5. The fixing plate 1 has mounting holes 101. A connecting post 2 is fixedly connected to the lower surface of the fixing plate 1. A housing 201 is fixedly installed on the lower surface of the connecting post 2. A mounting sleeve 3 is threaded onto the lower end of the inner surface of the housing 201. A light-transmitting cover 301 is installed on the mounting sleeve 3. A cooling fan 4 is fixedly installed in the middle of the top surface inside the housing 201. Air outlets 402 are opened near the upper end at both ends of the housing 201. Air inlets 403 are opened at the lower end of the air outlets 402 at both ends of the housing 201. Partition plates 401 are fixedly installed on both ends of the inner surface of the housing 201. Heat sinks 404 are provided on both ends of the connecting post 2. LED beads 501 are fixedly connected to the lower surface of the LED substrate 5. An LED power supply 502 is fixedly installed in the middle of the upper surface of the LED substrate 5. Mounting structures 6 are provided on the front and rear surfaces inside the housing 201 and the front and rear ends of the connecting post 2.

[0021] The mounting structure 6 includes a rotating block 601, a rotating rod 602, a mounting block 603, a mating block 604, a rectangular slot 605, a rectangular slider 606, a rectangular slide 607, a first bearing 608, a rectangular groove 609, a first bevel gear 610, a connecting rod 611, a second bevel gear 612, a second bearing 613, a threaded rod 614, a first groove 615, and a rectangular locking block 616. Mounting blocks 603 are fixedly mounted on both the front and rear surfaces inside the housing 201, and mating blocks 604 are fixedly mounted on the upper surface of the connecting column 2 near both the front and rear ends. A rectangular groove 609 is formed inside the docking block 604. A first bearing 608 is fixedly installed on the lower surface of the rectangular groove 609. A rotating rod 602 is installed on the first bearing 608, passing through the LED substrate 5. A rotating block 601 is fixedly installed on the lower surface of the rotating rod 602, and a first bevel gear 610 is fixedly installed on the upper surface of the rotating rod 602. Second bearings 613 are fixedly installed on both ends of the rectangular groove 609. A connecting rod 611 is installed on the second bearing 613, and threaded rods 61 are fixedly connected to both ends of the connecting rod 611. 4; A second bevel gear 612 is fixedly installed near one end of the middle of the outer surface of the connecting rod 611. The second bevel gear 612 fixedly installed near one end of the middle of the outer surface of the connecting rod 611 meshes with a first bevel gear 610 fixedly installed on the upper surface of the rotating rod 602. A rectangular locking block 616 is threadedly installed on the outer surface of the threaded rod 614. A first groove 615 is opened on both ends of the mating block 604. A rectangular sliding groove 607 is opened on both the upper and lower surfaces of the first groove 615. A rectangular slider 606 is slidably installed in the rectangular sliding groove 607. The rectangular locking block 616 A rectangular slider 606 is fixedly installed at the other end of both the upper and lower surfaces. A rectangular slot 605 is opened on both ends of the inner surface of the mounting block 603. When it is necessary to disassemble and repair the LED lamp, the mounting sleeve 3 can be screwed off from the housing 201. Then, the rotating block 601 is rotated to make the rectangular slot 616 disengage from the rectangular slot 605 opened on both ends of the inner surface of the mounting block 603 and retract into the first slot 615. Under the action of gravity, the LED substrate 5 moves downward, driving the docking block 604 to disengage from the mounting block 603, thus completing the disassembly. It is simple and convenient.

[0022] It should be noted that this utility model is an LED lighting fixture with good heat dissipation performance. When the LED fixture needs to be disassembled and repaired, firstly, the mounting sleeve 3 is screwed off from the housing 201. Then, the rotating block 601 is rotated, causing the rotating block 601 to drive the rotating rod 602 to rotate on the first bearing 608. This causes the first bevel gear 610 fixedly installed on the upper end of the rotating rod 602 to rotate. Because the second bevel gear 612 fixedly installed near one end on the middle of the outer surface of the connecting rod 611 meshes with the first bevel gear 610 fixedly installed on the upper surface of the rotating rod 602, The connecting rod 611 rotates on the second bearing 613, causing the connecting rod 611 to rotate the threaded rod 614 fixedly connected at both ends. This causes the rectangular locking block 616 threaded on the outer surface of the threaded rod 614 to slide the rectangular slider 606 fixedly installed at the other end of its upper and lower surfaces in the rectangular sliding groove 607 until the rectangular locking block 616 disengages from the rectangular locking groove 605 opened on both ends of the mounting block 603 and retracts into the first groove 615. Under the action of gravity, the LED substrate 5 moves downward, causing the docking block 604 to disengage from the mounting block 603, completing the disassembly. It is simple and convenient.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An LED lighting fixture with good heat dissipation performance, characterized in that: The assembly includes a fixing plate (1) and an LED substrate (5). The fixing plate (1) has mounting holes (101). A connecting post (2) is fixedly connected to the lower surface of the fixing plate (1). A housing (201) is fixedly installed on the lower surface of the connecting post (2). A mounting sleeve (3) is threaded onto the lower end of the inner surface of the housing (201). A light-transmitting cover (301) is installed on the mounting sleeve (3). A cooling fan (4) is fixedly installed in the middle of the top surface inside the housing (201). Air outlets (40) are opened at both ends of the housing (201) near the upper end. 2) An air inlet (403) is provided at the lower end of the air outlet (402) at both ends of the housing (201). A partition plate (401) is fixedly installed on both ends of the inner surface of the housing (201). Heat sinks (404) are provided on both ends of the connecting column (2). An LED lamp bead (501) is fixedly connected to the lower surface of the LED substrate (5). An LED power supply (502) is fixedly installed in the middle of the upper surface of the LED substrate (5). An installation structure (6) is provided on the front and rear surfaces of the inner surface of the housing (201) and the front and rear ends of the connecting column (2).

2. The LED lighting fixture with good heat dissipation performance according to claim 1, characterized in that: The mounting structure (6) includes a rotating block (601), a rotating rod (602), a mounting block (603), a docking block (604), a rectangular slot (605), a rectangular slider (606), a rectangular slide (607), a first bearing (608), a rectangular groove (609), a first bevel gear (610), a connecting rod (611), a second bevel gear (612), a second bearing (613), a threaded rod (614), a first groove (615), and a rectangular block (616).

3. The LED lighting fixture with good heat dissipation performance according to claim 2, characterized in that: Mounting blocks (603) are fixedly installed on both the front and rear surfaces inside the housing (201). Abutment blocks (604) are fixedly installed on the upper surface of the connecting column (2) near the front and rear ends. A rectangular groove (609) is opened inside the abutment block (604). A bearing (608) is fixedly installed on the lower surface of the rectangular groove (609).

4. The LED lighting fixture with good heat dissipation performance according to claim 3, characterized in that: A rotating rod (602) is mounted on the bearing (608). The rotating rod (602) passes through the LED substrate (5). A rotating block (601) is fixedly mounted on the lower surface of the rotating rod (602). A bevel gear (610) is fixedly mounted on the upper surface of the rotating rod (602).

5. The LED lighting fixture with good heat dissipation performance according to claim 4, characterized in that: The rectangular groove (609) has a No. 2 bearing (613) fixedly installed on both ends of the surface. A connecting rod (611) is installed on the No. 2 bearing (613). A threaded rod (614) is fixedly connected to both ends of the connecting rod (611).

6. The LED lighting fixture with good heat dissipation performance according to claim 5, characterized in that: A second bevel gear (612) is fixedly installed on the middle part of the outer surface of the connecting rod (611) near one end. The second bevel gear (612) fixedly installed on the middle part of the outer surface of the connecting rod (611) near one end meshes with a first bevel gear (610) fixedly installed on the upper surface of the rotating rod (602). A rectangular locking block (616) is threadedly installed on the outer surface of the threaded rod (614).

7. The LED lighting fixture with good heat dissipation performance according to claim 6, characterized in that: The docking block (604) has a groove (615) on both ends of its surface. The groove (615) has a rectangular sliding groove (607) on both the upper and lower surfaces. A rectangular slider (606) is slidably installed in the rectangular sliding groove (607). The rectangular block (616) has a rectangular slider (606) fixedly installed at the other end of both the upper and lower surfaces. The mounting block (603) has a rectangular slot (605) on both ends of its interior surface.

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