Active heat dissipation COB light source

Abstract

The utility model discloses an active heat dissipation COB light source, and relates to the technical field of COB light sources. The COB light source comprises a shell, a COB light source body is arranged in the shell, a filter screen plate is arranged on the side face of the shell, a motor is arranged at the bottom in the shell, the motor is fixedly connected with a rotating shaft through an output shaft of the motor, and a cooling fan is fixedly connected to the top of the rotating shaft. An anti-blocking mechanism and an auxiliary knocking mechanism are arranged on the side face of the filter screen plate, and the anti-blocking mechanism comprises a rotating gear and a hydraulic bin. And when the rotating shaft rotates to drive the cooling fan to rotate for ventilation and heat dissipation, a cleaning brush is driven to repeatedly move up and down through cooperation of a rotating gear, a toothed bar, a hydraulic bin and other assemblies to clean the filter screen plate, and the filter screen plate is prevented from being blocked by dust and fluff to affect the ventilation and heat dissipation effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of COB light sources, and particularly relates to an active heat dissipation COB light source. Background Art

[0002] COB light source is a high-power integrated surface light source technology that directly attaches multiple LED chips to a highly reflective mirror metal substrate to form a larger lighting element. This technology removes the concept of brackets in traditional LED packaging and simplifies the packaging process, including no electroplating, no reflow, and no patch process, so the process is reduced by nearly one-third and the cost is saved by one-third accordingly.

[0003] The utility model with publication number CN218820233U discloses a COB light source with active heat dissipation, including a shell, a COB light source body and a cooling mechanism. The COB light source body is fixedly connected to the inner side of the shell, and a cooling mechanism is arranged below the COB light source body. The cooling mechanism includes a thermally conductive copper sheet, a main infusion pipe, a water cooling plate, a heat dissipation component, an auxiliary infusion pipe, a cooling box, a water inlet pipe, a micro water pump and a water outlet pipe. In the above application document, a micro motor is used to drive the shaft to rotate, and the rotation of the shaft drives the fan to rotate. The fan rotates in conjunction with the ventilation holes to ventilate and dissipate heat inside the shell. The ventilation holes are easily clogged with dust and lint after long-term use, which may affect the ventilation and heat dissipation effect. Utility Model Content

[0004] The purpose of the utility model is to provide a COB light source with active heat dissipation, which solves the existing problems.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a COB light source with active heat dissipation, comprising a shell, a COB light source body is arranged inside the shell, a filter screen is arranged on the side of the shell, a motor is arranged on the inner bottom of the shell, the motor is fixedly connected to a rotating shaft through its output shaft, a cooling fan is fixedly connected to the top of the rotating shaft, an anti-blocking mechanism and an auxiliary knocking mechanism are arranged on the side of the filter screen, the anti-blocking mechanism comprises a rotating gear and a hydraulic warehouse, the rotating gear is fixedly connected to the middle end of the rotating shaft, the hydraulic warehouse passes through and is fixedly connected to the side of the filter screen, a pressure rod is slidably connected to the inner wall piston at one end of the hydraulic warehouse, a pressure plate is fixedly connected to the end of the pressure rod away from the hydraulic warehouse, a return spring is sleeved on the surface of the pressure rod, a gear rod is fixedly connected to the end of the pressure plate away from the pressure rod, a push rod is slidably connected to the inner wall piston at the other end of the hydraulic warehouse, and a cleaning brush is fixedly connected to the top of the push rod.

[0007] Furthermore, the heat dissipation fan is located directly below the COB light source body, and when the heat dissipation fan rotates, airflow is generated to blow toward the COB light source body.

[0008] Furthermore, the rotating gear is an incomplete gear, and the teeth on the rotating gear are matched with the teeth on the gear rod. When the rotating gear rotates and the teeth on the rotating gear are meshed with the gear rod, the gear rod will be driven to move leftward.

[0009] Furthermore, the bristles of the cleaning brush are made of nylon, and the bristles of the cleaning brush fit the surface of the filter screen. The bristles of nylon are not easy to generate static electricity, and the bristles of the cleaning brush will clean the surface of the filter screen when the cleaning brush moves up and down.

[0010] Furthermore, the auxiliary knocking mechanism includes an air pressure chamber, which passes through and is fixedly connected to the side of the filter screen plate. An air bag is provided at one end of the air pressure chamber, and a piston rod is slidably connected to the inner wall piston at the other end of the air pressure chamber, and an end of the piston rod away from the air pressure chamber is fixedly connected to an impact block.

[0011] Furthermore, the airbag is located directly above the cleaning brush and is in an expanded state in its initial state. When the cleaning brush moves upward, it squeezes the airbag, and the air pressure inside the squeezed airbag enters the air pressure chamber to push the piston rod to move leftward.

[0012] Furthermore, the impact block is made of rubber material, and in the initial state, the impact block is close to the filter screen plate. The piston rod moves to the left and drives the impact block to hit the filter screen plate. The impact block made of rubber material is elastic and will not cause damage to the filter screen plate.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model is provided with an anti-clogging mechanism, so that when the motor is turned on to drive the shaft to rotate, the rotation of the shaft drives the cooling fan to rotate for ventilation and heat dissipation. The cleaning brush can be driven to move up and down repeatedly to clean the filter screen through the cooperation of rotating gears, gear rods, hydraulic bins and other components to prevent the filter screen from being blocked by dust and lint, affecting the ventilation and heat dissipation effect.

[0015] 2. The utility model is provided with an auxiliary knocking mechanism, so that when the cleaning brush repeatedly moves up and down to clean the filter screen, the air bag, the air pressure chamber and other components will cooperate to drive the impact block to repeatedly knock on the filter screen, so that the filter screen will vibrate slightly, shake off the dust and lint on the filter screen, and enhance the cleaning effect.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure inside the shell of the utility model;

[0020] Figure 3 The structure diagram of the anti-blocking mechanism in the utility model is shown in FIG. Figure 1 ;

[0021] Figure 4 The structure diagram of the anti-blocking mechanism in the utility model is shown in FIG. Figure 2 ;

[0022] Figure 5 It is a structural schematic diagram of the auxiliary striking mechanism in the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Shell; 2. COB light source body; 3. Filter plate; 4. Motor; 5. Rotating shaft; 6. Cooling fan; 7. Anti-blocking mechanism; 71. Rotating gear; 72. Hydraulic chamber; 73. Pressure rod; 74. Pressure plate; 75. Reset spring; 76. Gear rod; 77. Push rod; 78. Cleaning brush; 8. Auxiliary knocking mechanism; 81. Air pressure chamber; 82. Airbag; 83. Piston rod; 84. Impact block. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5The utility model is a COB light source with active heat dissipation, including a shell 1, a COB light source body 2 is arranged inside the shell 1, a filter screen plate 3 is arranged on the side of the shell 1, a motor 4 is arranged at the bottom of the shell 1, the motor 4 is fixedly connected to a rotating shaft 5 through its output shaft, a cooling fan 6 is fixedly connected to the top of the rotating shaft 5, an anti-blocking mechanism 7 and an auxiliary knocking mechanism 8 are arranged on the side of the filter screen plate 3, the anti-blocking mechanism 7 includes a rotating gear 71 and a hydraulic chamber 72, the rotating gear 71 is fixedly connected to the middle end of the rotating shaft 5, the hydraulic chamber 72 runs through and is fixedly connected to the side of the filter screen plate 3, a pressure rod 73 is slidably connected to the inner wall piston at one end of the hydraulic chamber 72, a pressure plate 74 is fixedly connected to the end of the pressure rod 73 away from the hydraulic chamber 72, a return spring 75 is sleeved on the surface of the pressure rod 73, a gear rod 76 is fixedly connected to the end of the pressure plate 74 away from the pressure rod 73, a push rod 77 is slidably connected to the inner wall piston at the other end of the hydraulic chamber 72, and a cleaning brush 78 is fixedly connected to the top of the push rod 77.

[0027] The cooling fan 6 is located directly below the COB light source body 2 . When the cooling fan 6 rotates, airflow is generated to blow toward the COB light source body 2 .

[0028] The rotating gear 71 is an incomplete gear, and the teeth on the rotating gear 71 match the teeth on the gear rod 76. When the rotating gear 71 rotates and the teeth on the rotating gear 71 mesh with the gear rod 76, the gear rod 76 is driven to move leftward.

[0029] The bristles of the cleaning brush 78 are made of nylon, and the bristles of the cleaning brush 78 fit the surface of the filter screen plate 3. The bristles of nylon are not easy to generate static electricity. When the cleaning brush 78 moves up and down, its bristles will clean the surface of the filter screen plate 3.

[0030] The auxiliary knocking mechanism 8 includes an air pressure chamber 81, which passes through and is fixedly connected to the side of the filter screen plate 3. An air bag 82 is provided at one end of the air pressure chamber 81. A piston rod 83 is slidably connected to the inner wall piston at the other end of the air pressure chamber 81. The end of the piston rod 83 away from the air pressure chamber 81 is fixedly connected to a collision block 84.

[0031] The airbag 82 is located directly above the cleaning brush 78 and is initially in an expanded state. When the cleaning brush 78 moves upward, it squeezes the airbag 82. The compressed airbag 82 enters the air pressure chamber 81 and pushes the piston rod 83 to move leftward.

[0032] The impact block 84 is made of rubber material, and in the initial state, the impact block 84 is close to the filter screen plate 3. The piston rod 83 moves leftward to drive the impact block 84 to hit the filter screen plate 3. The impact block 84 made of rubber material is elastic and will not cause damage to the filter screen plate 3.

[0033] A specific application of this embodiment is: turn on the motor 4, the motor 4 drives the shaft 5 to rotate through its output shaft, the shaft 5 rotates and drives the cooling fan 6 to rotate, the cooling fan 6 rotates to generate airflow to blow to the COB light source body 2 for ventilation and heat dissipation, the filter plate 3 can prevent dust and lint from entering the shell 1, and at the same time, the rotation of the shaft 5 will drive the rotating gear 71 to rotate. At the beginning, when the rotating gear 71 rotates and its upper teeth are engaged with the gear rod 76, the gear rod 76 will move to the left, and the gear rod 76 moves to the left, driving the pressure plate 74 and the pressure rod 73 to move to the left, the reset spring 75 is tightened, and the pressure rod 73 moves to the left through the hydraulic pressure in the hydraulic chamber 72 to drive the push rod 77 to move upward, and the push rod 77 moves upward to drive the cleaning brush 78 to move upward, and when the rotating gear 71 rotates to the toothless part to disengage from the gear rod 76, the reset spring 75 rebounds and drives the pressure plate 74, the pressure rod 73 and the gear rod The cleaning brush 78 then moves upward to clean the filter screen 3, thereby preventing the filter screen 3 from being clogged by dust and fluff and affecting the ventilation and heat dissipation effect. When the cleaning brush 78 moves upward, it will squeeze the air bag 82, and the air pressure in the air bag 82 will enter the air pressure chamber 81 to push the piston rod 83 to move left. The left movement of the piston rod 83 will drive the impact block 84 to hit the filter screen 3. When the cleaning brush 78 moves downward and leaves the air bag 82, the air bag 82 rebounds, and the air pressure returns to the air bag 82. The piston rod 83 moves rightward and drives the impact block 84 to move rightward and restore. By driving the impact block 84 to repeatedly knock on the filter screen plate 3, the filter screen plate 3 will vibrate slightly, shake off the dust and fluff on the filter screen plate 3, and enhance the cleaning effect.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A COB light source with active heat dissipation, comprising a housing (1), characterized in that: A COB light source body (2) is arranged inside the shell (1), a filter screen (3) is arranged on the side of the shell (1), a motor (4) is arranged at the bottom of the shell (1), the motor (4) is fixedly connected to a rotating shaft (5) via its output shaft, a cooling fan (6) is fixedly connected to the top of the rotating shaft (5), and an anti-blocking mechanism (7) and an auxiliary knocking mechanism (8) are arranged on the side of the filter screen (3); The anti-blocking mechanism (7) comprises a rotating gear (71) and a hydraulic chamber (72), wherein the rotating gear (71) is fixedly connected to the middle end of the rotating shaft (5), the hydraulic chamber (72) penetrates and is fixedly connected to the side of the filter screen plate (3), a pressure rod (73) is slidably connected to the inner wall piston at one end of the hydraulic chamber (72), the end of the pressure rod (73) away from the hydraulic chamber (72) is fixedly connected to a pressure plate (74), a return spring (75) is sleeved on the surface of the pressure rod (73), the end of the pressure plate (74) away from the pressure rod (73) is fixedly connected to a gear rod (76), the inner wall piston at the other end of the hydraulic chamber (72) is slidably connected to a push rod (77), and the top of the push rod (77) is fixedly connected to a cleaning brush (78).

2. The active heat dissipation COB light source according to claim 1, characterized in that: The heat dissipation fan (6) is located directly below the COB light source body (2).

3. The active heat dissipation COB light source according to claim 2, characterized in that: The rotating gear (71) is an incomplete gear, and the teeth on the rotating gear (71) are matched with the teeth on the gear rod (76).

4. The active heat dissipation COB light source according to claim 3, characterized in that: The bristles of the cleaning brush (78) are made of nylon, and the bristles of the cleaning brush (78) are in contact with the surface of the filter screen plate (3).

5. The COB light source with active heat dissipation according to claim 4, characterized in that: The auxiliary knocking mechanism (8) comprises an air pressure chamber (81), the air pressure chamber (81) penetrates through and is fixedly connected to the side of the filter screen plate (3), an air bag (82) is arranged at one end of the air pressure chamber (81), a piston rod (83) is slidably connected to the inner wall piston at the other end of the air pressure chamber (81), and an end of the piston rod (83) away from the air pressure chamber (81) is fixedly connected to a collision block (84).

6. The active heat dissipation COB light source according to claim 5, characterized in that: The airbag (82) is located directly above the cleaning brush (78), and the airbag (82) is in an expanded state in an initial state.

7. The active heat dissipation COB light source according to claim 6, characterized in that: The impact block (84) is made of rubber, and in an initial state, the impact block (84) is close to the filter screen plate (3).

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