A COB dynamic rear taillight module

Abstract

The present invention discloses a COB dynamic rear taillight module, which relates to the technical field of vehicle-mounted lamps. The present invention significantly improves the heat dissipation effect of LED lamp beads through a double-sided heat dissipation design and coolant circulation between a transparent hollow glass plate and a heat-absorbing chamber, effectively reduces the temperature and prolongs the service life. At the same time, measures such as airflow adjustment and vibration cleaning are adopted to further optimize the heat dissipation efficiency and prevent dust accumulation from affecting the heat dissipation performance. In addition, the design of a rotating turbine and centrifugal circulation flow allows the heat to be evenly distributed to prevent local overheating. This technical solution not only improves the heat dissipation effect, but also improves the stability of the system under high temperature and long-term operation, ensuring the safety and reliability of the rear taillight module.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle-mounted lamps, and in particular to a COB dynamic rear taillight module. Background Art

[0002] Most of the existing heat dissipation systems for rear taillight modules adopt a single heat dissipation method, such as heat dissipation through the back panel or air convection. These traditional designs have certain limitations, especially when there are a large number of LED lamp beads and a high power, the heat accumulation is serious and the heat dissipation effect is poor. Most heat dissipation systems cannot effectively and quickly transfer heat to the external environment, resulting in excessive temperature of the lamp beads, and even causing lamp failure or light decay problems. In addition, traditional heat dissipation systems often lack dustproof and automatic cleaning functions. During long-term use, dust accumulation will greatly reduce the heat dissipation efficiency and further increase the risk of overheating. These shortcomings make traditional heat dissipation technology have many problems in practical applications, especially in high-temperature and long-term use environments, which are prone to problems such as uneven heat dissipation and performance degradation. Summary of the invention

[0003] In order to overcome the defects of the above-mentioned prior art, the present invention provides the following technical solutions: a COB dynamic rear taillight module, comprising a mounting frame, a transparent hollow glass plate, a PCB substrate and a heat absorption chamber are fixedly mounted on the inner side of the mounting frame in sequence, wherein the transparent hollow glass plate and the interior of the heat absorption chamber are hollow, and a plurality of LED lamp beads are arranged in an array on the PCB substrate; a heat dissipation loop pipe is arranged on the inner wall of the heat absorption chamber, one end of the heat dissipation loop pipe is connected with the interior of the transparent hollow glass plate through a second through connection, an end of the transparent hollow glass plate away from the second through connection is fixedly connected with a first through connection pipe, the first through connection pipe and the second through connection both extend through the PCB substrate to the interior of the heat absorption chamber, wherein an end of the heat dissipation loop pipe away from the second through connection is fixedly connected with a centrifugal drive annular chamber, the centrifugal drive annular chamber is connected with the first through connection pipe, a rotating paddle is rotatably arranged inside the centrifugal drive annular chamber, the rotating paddle is used to drive the transparent hollow glass plate and the transparent coolant inside the heat dissipation loop pipe to circulate, wherein an internal heat dissipation fin is fixedly arranged in the middle of the inner wall of the heat absorption chamber, and the internal heat dissipation fin is fixedly connected with the heat dissipation loop pipe.

[0004] Preferably, a sealing plate is fixedly sealed on the side of the heat absorption chamber, a temperature conduction chamber is arranged on the side of the sealing plate, and the interior of the temperature conduction chamber is connected to the interior of the heat absorption chamber at both ends through a first circulation channel tube and a second circulation channel tube.

[0005] Preferably, a rotating turbine is rotatably arranged in the first circulation channel tube, and a transmission shaft is fixedly installed on the axis of the rotating turbine; a rotating paddle is fixedly installed on a sealing turntable, a rotating seal of the sealing turntable is arranged on the inner wall of a centrifugal drive ring chamber, and the sealing turntable and the transmission shaft are connected by a transmission belt.

[0006] Preferably, a heat-absorbing fin sealing cover plate is fixedly and sealedly installed on the top of the temperature conduction chamber, and heat-absorbing fins are fixedly installed on the heat-absorbing fin sealing cover plate. A drive motor bracket is also fixedly installed on the inner wall of the temperature conduction chamber, and a drive motor is fixedly installed on the drive motor bracket. The output shaft of the drive motor is fixedly matched with the transmission shaft.

[0007] Preferably, a plurality of external heat dissipation fins arranged in parallel and at equal intervals are fixedly mounted on the lower surface of the driving motor bracket, and a vibrator is fixedly mounted on all the external heat dissipation fins.

[0008] Preferably, the mounting frame is installed at the rear of the vehicle body, and a flow air duct is opened at the rear of the vehicle body, one end of the flow air duct is arranged at the bottom of the vehicle body, and the other end of the flow air duct is arranged at the rear of the vehicle body, and an adjustment baffle sliding groove is opened at one end of the flow air duct located at the rear of the vehicle body, and an adjustment baffle is magnetically slidably arranged in the adjustment baffle sliding groove, which is used to adjust the opening cross-sectional size of the rear of the flow air duct.

[0009] Preferably, an air guide plate is movably mounted on one end of the flow air passage located at the bottom of the vehicle body, an adjusting electric cylinder is movably mounted on the inner wall of the flow air passage, and a telescopic rod of the adjusting electric cylinder is movably connected to the air guide plate.

[0010] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention can effectively reduce the temperature of LED lamp beads and extend the service life of the lamp through a double-sided heat dissipation design. The heat transfer between the coolant inside the transparent hollow glass plate and the lamp beads, combined with the flow of coolant in the heat absorption chamber, enables the entire system to have a strong heat dissipation ability, which can ensure the efficient heat dissipation of the lamp beads during long-term operation and avoid damage caused by excessive temperature; (2) The present invention can accurately control the amount of airflow entering and the contact angle with the heat dissipation fins by adjusting the design of the air guide plate and the adjustment baffle, thereby improving the heat dissipation effect of the external heat dissipation fins. Smaller openings not only help prevent dust, but also increase the air flow rate, effectively improve the heat dissipation effect and reduce the impact of dust on the system, thereby extending the working stability of the equipment; (3) The setting of the vibrator of the present invention can shake off the dust attached to the surface of the heat dissipation fins, avoid dust accumulation that hinders the heat dissipation effect, and maintain the efficient operation of the heat dissipation system. This design is particularly beneficial in long-term use, and can maintain the heat dissipation efficiency of the equipment and reduce the frequency of regular cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0012] Figure 2 This is a schematic diagram of the installation position structure of the present invention.

[0013] Figure 3 For the present invention Figure 2 Schematic diagram of the structure at point A in the middle.

[0014] Figure 4 This is a schematic diagram of the structure of the adjusting baffle of the present invention.

[0015] Figure 5 It is a schematic diagram of the structure of the temperature conduction chamber of the present invention.

[0016] Figure 6 It is a schematic diagram of the heat absorption chamber structure of the present invention.

[0017] Figure 7 For the present invention Figure 6 Schematic diagram of the structure at point B in the middle.

[0018] Figure 8 It is a schematic diagram of the structure of the internal heat dissipation fins of the present invention.

[0019] Fig. 9 For the present invention Figure 8 Schematic diagram of the structure at point C in the middle.

[0020] Fig.10 It is a schematic diagram of the heat dissipation circuit pipe structure of the present invention.

[0021] Fig.11 It is a schematic diagram of the structure of the transparent hollow glass plate of the present invention.

[0022] Fig.12 It is a schematic diagram of the PCB substrate structure of the present invention.

[0023] In the figure: 101-transparent hollow glass plate; 102-mounting frame; 103-heat absorption chamber; 104-PCB substrate; 105-first through-connecting pipe; 106-second through-connecting pipe; 107-centrifugal drive ring chamber; 108-heat dissipation loop pipe; 109-rotating paddle; 110-sealed turntable; 111-transmission belt; 112-transmission shaft; 113-rotating turbine; 114-driving motor; 115-sealing plate; 116 -first circulation channel tube; 117-internal heat dissipation fins; 118-second circulation channel tube; 119-temperature conduction chamber; 120-heat absorption fins; 121-heat absorption fin sealing cover plate; 122-driving motor bracket; 123-external heat dissipation fins; 124-vibrator; 125-adjusting baffle; 126-adjusting baffle sliding groove; 127-flowing airway; 128-air guide plate; 129-adjusting electric cylinder; 130-vehicle body. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-12 , and further illustrate the technical solution of the present invention through specific implementation methods.

[0025] The present invention provides a COB dynamic rear taillight module, comprising an installation frame 102, on the inner side of which a transparent hollow glass plate 101, a PCB substrate 104 and a heat absorption chamber 103 are fixedly installed in sequence, wherein the interior of the transparent hollow glass plate 101 and the heat absorption chamber 103 are hollow, and a plurality of LED lamp beads are arranged in an array on the PCB substrate 104; a heat dissipation loop pipe 108 is arranged on the inner wall of the heat absorption chamber 103, one end of the heat dissipation loop pipe 108 is connected to the interior of the transparent hollow glass plate 101 through a second through-connection 106, and one end of the transparent hollow glass plate 101 away from the second through-connection 106 is fixedly connected to a first through-connection pipe 105, and the second through-connection pipe 106 is fixedly connected to the first through-connection pipe 105. A through-connecting pipe 105 and a second through-connecting pipe 106 both extend through the PCB substrate 104 to the interior of the heat absorption chamber 103, wherein the end of the heat dissipation loop pipe 108 away from the second through-connecting pipe 106 is fixedly connected with a centrifugal drive annular chamber 107, the centrifugal drive annular chamber 107 is connected with the first through-connecting pipe 105, a rotating paddle 109 is rotatably arranged inside the centrifugal drive annular chamber 107, the rotating paddle 109 is used to drive the transparent hollow glass plate 101 and the transparent cooling liquid inside the heat dissipation loop pipe 108 to circulate, wherein an internal heat dissipation fin 117 is fixedly arranged at the middle of the inner wall of the heat absorption chamber 103, and the internal heat dissipation fin 117 is fixedly connected with the heat dissipation loop pipe 108. A sealing plate 115 is fixedly sealed on the side of the heat absorption chamber 103, and a temperature conduction chamber 119 is arranged on the side of the sealing plate 115, and the interior of the temperature conduction chamber 119 is connected with both ends of the interior of the heat absorption chamber 103 through a first circulation channel pipe 116 and a second circulation channel pipe 118. A rotating turbine 113 is rotatably arranged in the first circulation channel tube 116, and a transmission shaft 112 is fixedly installed on the axis of the rotating turbine 113; the rotating paddle 109 is fixedly installed on the sealing turntable 110, and the sealing turntable 110 is rotatably sealed and arranged on the inner wall of the centrifugal drive ring chamber 107, and the sealing turntable 110 and the transmission shaft 112 are connected by a transmission belt 111. A heat-absorbing fin sealing cover plate 121 is fixedly installed on the top of the temperature conduction chamber 119, and a heat-absorbing fin 120 is fixedly installed on the heat-absorbing fin sealing cover plate 121. A driving motor bracket 122 is also fixedly installed on the inner wall of the temperature conduction chamber 119, and a driving motor 114 is fixedly installed on the driving motor bracket 122, and the output shaft of the driving motor 114 is fixedly matched with the transmission shaft 112. A plurality of parallel and equidistantly arranged external heat dissipation fins 123 are fixedly installed on the lower surface of the driving motor bracket 122, and a vibrator 124 is fixedly installed on all the external heat dissipation fins 123.The mounting frame 102 is mounted at the rear of the vehicle body 130, and a flow air channel 127 is provided at the rear of the vehicle body 130, one end of the flow air channel 127 is arranged at the bottom of the vehicle body 130, and the other end of the flow air channel 127 is arranged at the rear of the vehicle body 130, and an adjustment baffle sliding groove 126 is provided at one end of the flow air channel 127 located at the rear of the vehicle body 130, and an adjustment baffle 125 is magnetically slidably arranged in the adjustment baffle sliding groove 126, which is used to adjust the opening cross-section size of the rear of the flow air channel 127. An air guide plate 128 is movably installed at one end of the flow air channel 127 located at the bottom of the vehicle body 130, and an adjustment electric cylinder 129 is movably installed on the inner wall of the flow air channel 127, and the telescopic rod of the adjustment electric cylinder 129 is movably connected to the air guide plate 128.

[0026] The working principle of a COB dynamic rear taillight module disclosed in the present invention is as follows: a combination display is performed through a plurality of LED lamp beads arranged on a PCB substrate 104, wherein the display content includes brake highlight, left and right turn signals, and information such as vehicle status as required, to provide information to the following vehicle to improve safety. When in use, the lamp beads will generate a large amount of heat (due to the large number) when working for a long time, so it is necessary to dissipate heat for them. In order to improve the heat dissipation performance, double-sided heat dissipation is set, and the light emitted by the lamp beads will pass through the transparent hollow glass plate 101 (and the coolant inside it), and the temperature of the lamp beads will be transferred to the coolant inside the transparent hollow glass plate 101, and transferred to the coolant inside the heat absorption chamber 103 through the PCB substrate 104 (including the control chip and other heating elements on the PCB substrate 104), wherein the coolant inside the transparent hollow glass plate 101 is closer to the heat generation of the lamp beads, and the temperature of the coolant inside the transparent hollow glass plate 101 is higher than the temperature of the coolant inside the heat absorption chamber 103. The drive motor 114 is started, and the output shaft of the drive motor 114 drives the transmission shaft 112 to rotate, and the transmission shaft 112 drives the rotating turbine 113 to rotate. The rotation of the rotating turbine 113 drives the coolant inside the heat absorption chamber 103 and the temperature conduction chamber 119 to rotate and flow, and the temperature is transferred to the external heat dissipation fins 123 through the heat absorption fins 120 and the heat absorption fin sealing cover plate 121, and then the external heat dissipation fins 123 are cooled by the airflow. The airflow can be controlled by controlling the adjusting electric cylinder 129 to drive the air guide plate 128 to swing. The swing of the air guide plate 128 will change the contact angle with the airflow, adjust the flow rate of air entering the flow airway 127, and thus change the relative flow rate of air and the external heat dissipation fins 123. The adjusting baffle 125 is moved up and down in the adjusting baffle sliding groove 126 to adjust the opening size of the tail of the flow airway 127, which mainly plays a role in dust prevention. When the opening becomes smaller, the air flow rate at the opening increases, which is more conducive to preventing dust accumulation. Starting the vibrator 124 can shake off some of the dust attached to the surface of the external heat dissipation fins 123, reducing the effect of dust on the heat dissipation of the external heat dissipation fins 123. When the transmission shaft 112 rotates, it will also drive the sealing turntable 110 to rotate through the transmission belt 111, and the sealing turntable 110 will drive the rotating paddle 109 to rotate. The rotation of the rotating paddle 109 will drive the coolant inside the centrifugal drive annular chamber 107 to rotate, and then the coolant will flow into the heat dissipation loop pipe 108 under the action of centrifugal force, thereby realizing the circulation of the coolant inside the transparent hollow glass plate 101 and the heat dissipation loop pipe 108. In this process, the temperature of the coolant in the transparent hollow glass plate 101 will be transferred to the coolant inside the heat absorption chamber 103 through the heat dissipation loop pipe 108 to transfer the temperature, wherein the internal heat dissipation fins 117 are used to increase the contact area between the heat dissipation loop pipe 108 and the coolant inside the heat absorption chamber 103.

Claims

1. A COB dynamic taillight module, characterized by: It comprises an installation frame (102), wherein a transparent hollow glass plate (101), a PCB substrate (104) and a heat absorption chamber (103) are fixedly mounted in sequence on the inner side of the installation frame (102), wherein the interior of the transparent hollow glass plate (101) and the heat absorption chamber (103) are hollow, and a plurality of LED lamp beads are arranged in an array on the PCB substrate (104); A heat dissipation loop pipe (108) is arranged on the inner wall of the heat absorption chamber (103); one end of the heat dissipation loop pipe (108) is connected to the interior of the transparent hollow glass plate (101) through a second through-connection (106); one end of the transparent hollow glass plate (101) away from the second through-connection (106) is fixedly connected to the first through-connection pipe (105); both the first through-connection pipe (105) and the second through-connection (106) pass through the PCB substrate (104) and extend to the interior of the heat absorption chamber (103); the heat dissipation loop pipe (108) is away from the second through-connection One end of (106) is fixedly connected to a centrifugal drive annular chamber (107), the centrifugal drive annular chamber (107) is connected to the first through-connecting tube (105), a rotating paddle (109) is rotatably arranged inside the centrifugal drive annular chamber (107), the rotating paddle (109) is used to drive the transparent hollow glass plate (101) and the transparent cooling liquid inside the heat dissipation circuit pipe (108) to circulate, wherein an internal heat dissipation fin (117) is fixedly arranged in the middle of the inner wall of the heat absorption chamber (103), and the internal heat dissipation fin (117) is fixedly connected to the heat dissipation circuit pipe (108).

2. A COB dynamic rear taillight module according to claim 1, characterized in that: A sealing plate (115) is fixedly and sealedly provided on the side of the heat absorption chamber (103), a temperature conduction chamber (119) is provided on the side of the sealing plate (115), and the interior of the temperature conduction chamber (119) and the interior of the heat absorption chamber (103) are connected at both ends via a first circulation channel tube (116) and a second circulation channel tube (118).

3. A COB dynamic rear taillight module according to claim 2, characterized in that: A rotating turbine (113) is rotatably arranged in the first circulation channel tube (116), and a transmission shaft (112) is fixedly mounted on the axis of the rotating turbine (113); a rotating paddle (109) is fixedly mounted on a sealing rotary disk (110), and a sealing rotary disk (110) is rotatably arranged on the inner wall of a centrifugal drive annular chamber (107), and the sealing rotary disk (110) and the transmission shaft (112) are connected to each other via a transmission belt (111).

4. The COB dynamic rear taillight module according to claim 3, characterized in that: A heat absorbing fin sealing cover plate (121) is fixedly and sealedly mounted on the top of the temperature conduction chamber (119), and a heat absorbing fin (120) is fixedly mounted on the heat absorbing fin sealing cover plate (121). A drive motor bracket (122) is also fixedly mounted on the inner wall of the temperature conduction chamber (119), and a drive motor (114) is fixedly mounted on the drive motor bracket (122). The output shaft of the drive motor (114) is fixedly matched with the transmission shaft (112).

5. The COB dynamic rear taillight module according to claim 4, characterized in that: A plurality of external heat dissipation fins (123) arranged in parallel and at equal intervals are fixedly mounted on the lower surface of the drive motor bracket (122), and a vibrator (124) is fixedly mounted on all the external heat dissipation fins (123).

6. The COB dynamic rear taillight module according to claim 5, characterized in that: The mounting frame (102) is mounted at the rear of the vehicle body (130), and a flow passage (127) is provided at the rear of the vehicle body (130), one end of the flow passage (127) is arranged at the bottom of the vehicle body (130), and the other end of the flow passage (127) is arranged at the rear of the vehicle body (130), and an adjustment baffle sliding groove (126) is provided at one end of the flow passage (127) located at the rear of the vehicle body (130), and an adjustment baffle (125) is magnetically slidably provided in the adjustment baffle sliding groove (126) for adjusting the size of the opening cross section at the rear of the flow passage (127).

7. A COB dynamic rear taillight module according to claim 6, characterized in that: An air guide plate (128) is movably mounted on one end of the flow air passage (127) located at the bottom of the vehicle body (130), an adjusting electric cylinder (129) is movably mounted on the inner wall of the flow air passage (127), and a telescopic rod of the adjusting electric cylinder (129) is movably connected to the air guide plate (128).

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