Polarized light source for trace inspection of vacuum thermal phase change heat dissipation structure

Abstract

The utility model provides a polarization light source for trace inspection of a vacuum thermal phase change heat dissipation structure, which relates to the technical field of detection light sources and comprises a shell and an upper cover, the upper cover is arranged on the upper side of the shell, a lens groove is arranged on the rear side of one end in the shell, one end of the lens groove is provided with a light outlet hole, and the other end of the lens groove is provided with a light source. An air inlet channel is arranged on the front side of one end in the shell, a vacuum vapor chamber is arranged in the air inlet channel, and an optical assembly extending into the lens groove is arranged on the rear side of the vacuum vapor chamber. Air is exhausted backwards through the fan, negative pressure is formed in the shell, air flow is drawn to circulate in the shell, the air flow is sucked in from the air inlet holes in the front portion of the upper cover, flows to the front ends of the heat dissipation fins and enters the fins from fin gaps, heat generated by the optical assembly is rapidly conducted to the heat dissipation fins on the upper portion through the vacuum vapor chamber, and the heat dissipation efficiency is improved. Air flow takes away heat when flowing through the gaps in the fins, enters the fan through the heat dissipation air channel in the middle of the shell and is discharged out of the shell, and the heat dissipation efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of detection light sources, in particular to a polarized light source for trace inspection of a vacuum thermal phase change heat dissipation structure. Background Art

[0002] In the application of public security case scene investigation, in order to search for traces on the ground or other surfaces, high-power flat line light sources are usually used for large-scale search. This high-power flat line light source has a large range of light beams on the ground, and the traces on the surface appear brightly.

[0003] However, such high-power flat light sources usually have several problems:

[0004] First, fans are used directly to dissipate heat from the heat sink, which has low heat dissipation efficiency. The LED is in a high temperature state for a long time, which causes poor heat dissipation and premature aging of the LED light source.

[0005] Second, the light source is relatively large, which increases the burden of carrying;

[0006] Third, it only has white light irradiation function, single application and limited application scope;

[0007] Therefore, the present invention proposes a polarized light source for trace inspection of a vacuum thermal phase change heat dissipation structure to solve the problems existing in the prior art. Utility Model Content

[0008] In response to the above problems, the utility model proposes a polarized light source for trace inspection of a vacuum thermal phase change heat dissipation structure. The heat generated by the optical component of the polarized light source for trace inspection of the vacuum thermal phase change heat dissipation structure is quickly transferred to the upper heat dissipation fins through a vacuum heat spreader. The airflow takes away the heat when passing through the internal gaps of the fins, enters the fan through the heat dissipation duct in the middle of the shell, and is discharged from the shell, thereby improving the heat dissipation efficiency.

[0009] To achieve the purpose of the utility model, the utility model is implemented through the following technical solutions: a polarized light source for trace inspection with a vacuum thermal phase change heat dissipation structure, comprising a housing and an upper cover, the upper cover being arranged on the upper side of the housing, a lens groove being provided on the lower side of one end of the interior of the housing, a light exit hole being provided at one end of the lens groove, an air inlet duct being provided on the front side of one end of the interior of the housing, and a vacuum heat sink being provided inside the air inlet duct, an optical component extending into the interior of the lens groove being provided on the lower side of the vacuum heat sink, and heat dissipation fins being provided on the upper side of the vacuum heat sink;

[0010] An installation groove is provided at one end of the shell away from the lens groove, and a fan is provided inside the installation groove. A heat dissipation duct is connected between the installation groove and the air inlet duct. An air inlet hole is provided on one end of the upper cover close to the heat dissipation fin, and an air outlet hole is provided on one end of the shell close to the fan.

[0011] A further improvement is that the optical component includes an LED array circuit board, a first condenser, a polarizer and a second condenser. The LED array circuit board and the first condenser are arranged at one end of the rear side of the vacuum heat spreader near the heat dissipation duct, the polarizer is arranged at one end of the rear side of the vacuum heat spreader near the light output hole, and the second condenser is connected to the polarizer.

[0012] Further improvements are: power supply modules are provided inside the mounting slots at both ends of the fan, and the power supply modules are used to supply power to the fan and optical components; a magnetic electrode is provided at the middle end of the front side of the upper cover, and the magnetic electrode is connected to the power supply module through a wire.

[0013] A further improvement is that: at least two groups of fans are provided, and the output ends of the two groups of fans are both oriented towards the air outlet.

[0014] A further improvement is that a foam sealing gasket is connected between the front side of the heat dissipation duct and the upper cover.

[0015] A further improvement is that a connecting hinge is rotatably provided on one side of the shell close to one end of the air outlet, and a magnet is embedded in the hinge.

[0016] The beneficial effects of the utility model are:

[0017] 1. The utility model operates the fan through power supply to exhaust air backwards, forming a negative pressure inside the shell, drawing airflow to circulate inside the shell, sucking air in from the front air inlet of the upper cover, flowing to the front end of the heat dissipation fins, and entering the fins through the fin gaps. The heat generated by the optical components is quickly transferred to the upper heat dissipation fins through the vacuum heat spreader. The airflow takes away the heat when flowing through the internal gaps of the fins, enters the fan through the heat dissipation duct in the middle of the shell, and is discharged from the shell. The heat dissipation efficiency is higher, and the integration reduces the volume.

[0018] 2. The linear light beam generated by the LED array circuit board of the present invention is shaped by the first condenser, passed through the polarizer forward to become linear polarized light, and then shaped by the second condenser to form a flat linear polarized light beam to illuminate the trace. When observing, another linear polarizer with a 90° angle to the polarization direction of the light source is prepared to eliminate reflections and show high-contrast trace images, with diversified functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the main view of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the disassembly of the utility model;

[0022] Figure 4 This is a top cross-sectional schematic diagram of the utility model;

[0023] Figure 5 This is a schematic diagram of the air duct of the present utility model.

[0024] Among them: 1. Shell; 2. Upper cover; 3. Lens slot; 4. Vacuum heat sink; 5. Heat dissipation fins; 6. Fan; 7. Heat dissipation duct; 8. Air inlet; 9. Air outlet; 10. LED array circuit board; 11. First condenser; 12. Polarizer; 13. Second condenser; 14. Power module; 15. Magnetic electrode; 16. Foam sealing gasket; 17. Air inlet duct; 18. Connecting hinge; 19. Mounting slot; 20. Magnet. DETAILED DESCRIPTION

[0025] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0026] Example 1

[0027] according to Figure 1 、 2 As shown in Figures 3, 4, and 5, this embodiment proposes a polarized light source for trace inspection with a vacuum thermal phase change heat dissipation structure, comprising a housing 1 and an upper cover 2. The upper cover 2 is provided on the upper side of the housing 1. A lens groove 3 is provided on the lower side of one end of the interior of the housing 1. A light exit hole is provided at one end of the lens groove 3. An air inlet duct 17 is provided on the front side of one end of the interior of the housing 1, and a vacuum heat sink 4 is provided inside the air inlet duct 17. An optical component extending into the interior of the lens groove 3 is provided on the lower side of the vacuum heat sink 4. A heat dissipation fin 5 is provided on the upper side of the vacuum heat sink 4.

[0028] A mounting slot 19 is provided at one end of the housing 1 away from the lens slot 3, and a fan 6 is provided inside the mounting slot 19. A heat dissipation duct 7 is connected between the mounting slot 19 and the air inlet duct 17. An air inlet hole 8 is provided on one end of the upper cover 2 close to the heat dissipation fin 5, and an air outlet hole 9 is provided at one end of the housing 1 close to the fan 6. By powering the fan 6 to exhaust air backward, a negative pressure is formed inside the housing 1, and the air flow is pumped to circulate inside the housing 1. Air flow is sucked in from the front air inlet hole 8 of the upper cover 2, flows to the front end of the heat dissipation fin 5, and enters the fin through the fin gap. The heat generated by the optical component is quickly transferred to the upper heat dissipation fin 5 through the vacuum heat spreader. The air flow takes away the heat when flowing through the internal gap of the fin, enters the fan through the heat dissipation duct 7 in the middle of the housing, and is discharged from the housing 1, resulting in higher heat dissipation efficiency.

[0029] The optical assembly includes an LED array circuit board 10, a first condenser 11, a polarizer 12, and a second condenser 13. The LED array circuit board 10 and the first condenser 11 are located at one end of the rear side of the vacuum vapor chamber 4, near the heat dissipation duct 7. The polarizer 12 is located at one end of the rear side of the vacuum vapor chamber 4, near the light exit hole. The second condenser 13 is connected to the polarizer 12. The linear light beam generated by the LED array circuit board 10 is shaped by the first condenser 11, passes forward through the polarizer 12 to become linear polarized light, and then is shaped by the second condenser 13 to form a flat linear polarized light beam that illuminates the trace. When observing, another linear polarizer is prepared at a 90-degree angle to the polarization direction of the light source to eliminate reflections and reveal high-contrast trace images, providing diverse functions.

[0030] Power modules 14 are located within the mounting slots 19 at both ends of the fan 6. These modules are used to power the fan 6 and the optical components. A magnetic electrode 15 is located at the middle end of the front side of the upper cover 2 and is connected to the power module 14 via a wire. During operation, an external power source connects to the magnetic electrode 15 to supply power to the power module 14, which in turn supplies power to the fan 6 and the optical components.

[0031] Two sets of fans 6 are provided, and the output ends of both sets of fans 6 are oriented toward the air outlet 9. By powering the fans 6 to exhaust air backward, negative pressure is created inside the housing 1, forcing air to circulate within the housing 1. Air is drawn in through the front air inlet 8 of the upper cover 2, flows to the front ends of the heat sink fins 5, and enters the fins through the gaps between them. Heat generated by the optical components is quickly transferred to the upper heat sink fins 5 through the vacuum vapor chamber. Airflow carries away heat as it flows through the gaps within the fins, enters the fans through the heat dissipation duct 7 in the middle of the housing, and is discharged from the housing 1. The two sets of fans 6 provide a greater air volume.

[0032] Example 2

[0033] according to Figure 1 、 2 As shown in Figures 3, 4, and 5, this embodiment proposes a polarized light source for trace inspection with a vacuum thermal phase change heat dissipation structure, comprising a housing 1 and an upper cover 2. The upper cover 2 is provided on the upper side of the housing 1. A lens groove 3 is provided on the lower side of one end of the interior of the housing 1. A light exit hole is provided at one end of the lens groove 3. An air inlet duct 17 is provided on the upper side of one end of the interior of the housing 1, and a vacuum heat sink 4 is provided inside the air inlet duct 17. An optical component extending into the interior of the lens groove 3 is provided on the lower side of the vacuum heat sink 4. Heat dissipation fins 5 are provided on the upper side of the vacuum heat sink 4.

[0034] A mounting slot 19 is provided at one end of the housing 1 away from the lens slot 3, and a fan 6 is provided inside the mounting slot 19. A heat dissipation duct 7 is connected between the mounting slot 19 and the air inlet duct 17. An air inlet hole 8 is provided on one end of the upper cover 2 close to the heat dissipation fin 5, and an air outlet hole 9 is provided at one end of the housing 1 close to the fan 6. By powering the fan 6 to exhaust air backward, a negative pressure is formed inside the housing 1, and the air flow is pumped to circulate inside the housing 1. Air flow is sucked in from the front air inlet hole 8 of the upper cover 2, flows to the front end of the heat dissipation fin 5, and enters the fin through the fin gap. The heat generated by the optical component is quickly transferred to the upper heat dissipation fin 5 through the vacuum heat spreader. The air flow takes away the heat when flowing through the internal gap of the fin, enters the fan through the heat dissipation duct 7 in the middle of the housing, and is discharged from the housing 1, resulting in higher heat dissipation efficiency.

[0035] A foam sealing gasket 16 is connected between the upper side of the heat dissipation duct 7 and the upper cover 2 to improve the sealing effect. A connecting hinge 18 is rotatably provided on one side of the shell 1 close to one end of the air outlet 9. An axial hole is provided on the lower rear side of the shell 1 to connect the L-shaped connecting hinge 18. A magnet 20 is embedded in the connecting hinge 18 to adjust the connection. A magnet is provided at the corresponding position on the rear side of the shell 1. When the connecting hinge 18 is adjusted to an upright state, it is attracted by the internal magnet to fix the connecting hinge 18. When the connecting hinge 18 is flipped to the lower part of the shell 1, the rear part of the shell 1 rises and the light beam is adjusted to irradiate downward.

[0036] The trace inspection polarized light source of this vacuum thermal phase change heat dissipation structure is powered by a fan 6 that exhausts air backward, creating a negative pressure inside the housing 1. This draws air into the housing 1, draws air in through the front air inlet 8 of the upper cover 2, flows to the front end of the heat dissipation fins 5, and enters the fins through the gaps between the fins. The heat generated by the optical components is quickly transferred to the upper heat dissipation fins 5 through the vacuum heat spreader. The airflow carries away the heat as it flows through the gaps inside the fins, enters the fan through the heat dissipation duct 7 in the middle of the housing, and is discharged from the housing 1. This improves the heat dissipation efficiency and is integrated, reducing the volume. At the same time, the linear light beam generated by the LED array circuit board 10 is shaped by the first condenser 11, passes forward through the polarizer 12 to become linear polarized light, and then shaped by the second condenser 13 to form a flat linear polarized light beam to illuminate the trace. When observing, another linear polarizer is prepared at a 90-degree angle to the polarization direction of the light source to eliminate reflections and reveal high-contrast trace images, providing diversified functions.

[0037] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A polarized light source for trace inspection of a vacuum thermal phase change heat dissipation structure, comprising a housing (1) and an upper cover (2), characterized in that: The upper cover (2) is arranged on the upper side of the shell (1); a lens groove (3) is provided on the lower side of one end of the interior of the shell (1); a light exit hole is provided at one end of the lens groove (3); an air inlet duct (17) is provided on the front side of one end of the interior of the shell (1); a vacuum heat spreader (4) is provided inside the air inlet duct (17); an optical component extending to the interior of the lens groove (3) is provided on the lower side of the vacuum heat spreader (4); and a heat dissipation fin (5) is provided on the upper side of the vacuum heat spreader (4); An installation slot (19) is provided at one end of the housing (1) away from the lens slot (3), and a fan (6) is provided inside the installation slot (19). A heat dissipation duct (7) is connected between the installation slot (19) and the air inlet duct (17). An air inlet hole (8) is provided on one end of the upper cover (2) close to the heat dissipation fins (5), and an air outlet hole (9) is provided on one end of the housing (1) close to the fan (6).

2. The polarized light source for trace inspection of a vacuum thermal phase change heat dissipation structure according to claim 1, characterized in that: The optical component comprises an LED array circuit board (10), a first condenser (11), a polarizer (12) and a second condenser (13); the LED array circuit board (10) and the first condenser (11) are arranged at one end of the lower side of the vacuum heat spreader (4) close to the heat dissipation duct (7); the polarizer (12) is arranged at one end of the lower side of the vacuum heat spreader (4) close to the light exit hole; and the second condenser (13) is connected to the polarizer (12).

3. The polarized light source for trace inspection of a vacuum thermal phase change heat dissipation structure according to claim 1, characterized in that: A power module (14) is provided inside the mounting slots (19) at both ends of the fan (6), and the power module (14) is used to supply power to the fan (6) and the optical component. A magnetic electrode (15) is provided at the middle end of the front side of the upper cover (2), and the magnetic electrode (15) is connected to the power module (14) through a wire.

4. The polarized light source for trace inspection of a vacuum thermal phase change heat dissipation structure according to claim 3, characterized in that: At least two groups of fans (6) are provided, and the output ends of the two groups of fans (6) are both oriented toward the air outlet (9).

5. The polarized light source for trace inspection of a vacuum thermal phase change heat dissipation structure according to claim 1, characterized in that: A foam sealing gasket (16) is connected between the front side of the heat dissipation duct (7) and the upper cover (2).

6. The polarized light source for trace inspection of a vacuum thermal phase change heat dissipation structure according to claim 1, characterized in that: A connecting hinge (18) is rotatably provided on one side of the housing (1) close to one end of the air outlet (9), and a magnet (20) is adhered inside the connecting hinge (18).

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