A high-power point light source with good sealing and heat dissipation

Abstract

The utility model discloses a high -power point light source that good sealing and good heat dissipation, including the casing, the casing includes sealed casing and is located sealed casing one end's heat dissipation casing, sealed casing includes sealed body, the sealed cover of jointing in sealed body one end and the sealed ring subassembly of abutting in between sealed body and sealed cover, the inside of sealed body and sealed cover is equipped with sealed cavity, the sealed cavity is equipped with LED subassembly, TIR lens and light -conducting element in proper order, the heat dissipation cavity is equipped with in heat dissipation casing, the heat dissipation fan is installed to the heat dissipation casing inside one end, the first vent is equipped with in heat dissipation casing inside one end, the second vent is equipped with in heat dissipation casing lateral wall a plurality of, the first vent, heat dissipation cavity and second vent are linked in proper order, it realizes sealing and heat dissipation through sealed shell + active heat dissipation mode to guarantee that this point light source has good sealing and good heat dissipation.

Description

Technical Field

[0001] This utility model relates to the technical field of point light sources, and in particular to a high-power point light source with good sealing and heat dissipation. Background Technology

[0002] In the field of machine vision inspection, point light sources are key equipment for high-precision positioning, character recognition, and the detection of scratches and dents. They emit highly collimated light beams to highlight the microscopic features of an object's surface, forming a high-contrast image.

[0003] Currently, with the continuous improvement of industrial testing speed and accuracy, the industry has put forward higher requirements for the power, brightness and power stability of point light sources, that is, point light sources are required to develop towards higher power and higher brightness. In order for point light sources to achieve higher power and higher brightness, it is necessary to improve the corresponding heat dissipation performance in order to ensure stable operation of high power and high brightness.

[0004] At the same time, with the explosive development of machine vision technology, various industries need point light sources to achieve corresponding machine vision inspection. In some mechanical cutting inspection, food inspection, pharmaceutical inspection, chemical inspection and outdoor inspection processes, point light sources in machine vision will inevitably be subjected to water vapor, oil mist or spray washing. Therefore, the industry has put forward higher requirements for the sealing performance of point light sources.

[0005] Currently, to achieve good sealing and heat dissipation performance, point light sources utilize the following technologies:

[0006] 1. The point light source includes a sealed housing. A thermal pad is attached to one end of the sealed housing, and an LED component is attached to the thermal pad. When the LED component emits high-power, high-brightness light, its heat is transferred to the sealed housing through the thermal pad, and then dissipated through the sealed housing. Therefore, this point light source achieves both sealing and heat dissipation through a "sealed housing + passive heat dissipation" method. However, while this type of point light source has good sealing performance, its heat dissipation performance is poor.

[0007] 2. The point light source includes a housing with a heat-conducting fan connected to the outside and the inside of the housing. An air inlet is located on the housing. Heat dissipation is achieved through the air inlet -> housing interior -> fan, ensuring the point light source's cooling and keeping the interior of the housing dry. Therefore, this point light source achieves heat dissipation through "active fan cooling," but lacks a sealed design.

[0008] Therefore, in summary, the industry urgently needs a point light source with good sealing and heat dissipation. Utility Model Content

[0009] The purpose of this invention is to overcome the above-mentioned defects in the prior art and provide a high-power point light source with good sealing and heat dissipation. The point light source of this invention has good sealing and heat dissipation performance, which can not only ensure the stable operation of the high-power and high-brightness illumination of the point light source, but also ensure that the point light source is suitable for machine vision inspection scenarios with high sealing requirements.

[0010] To achieve the above objectives, this utility model provides a high-power point light source with good sealing and heat dissipation, including a housing. The housing includes a sealing housing and a heat dissipation housing disposed at one end of the sealing housing. The sealing housing includes a sealing body, a sealing cover snapped onto one end of the sealing body, and a sealing ring assembly pressed between the sealing body and the sealing cover. A sealing cavity is formed inside the sealing body and the sealing cover. An LED assembly, a TIR lens, and a light guide element are sequentially disposed on the sealing cavity. A heat dissipation cavity is formed inside the heat dissipation housing. A cooling fan is installed at one end of the heat dissipation housing. A first ventilation opening is formed at one end of the heat dissipation housing. A plurality of second ventilation openings are formed on the side wall of the heat dissipation housing. The first ventilation opening, the heat dissipation cavity, and the second ventilation openings are sequentially connected.

[0011] Preferably, the LED assembly is located at one end of the sealed cavity, the TIR lens is located at one end of the LED assembly, the light guide element is a light guide post, and the light guide post is inserted into the sealed cover.

[0012] Preferably, the sealing body has a first annular body at one end, and the sealing cap has a second annular body at one end. The second annular body includes an outer annular body, an inner annular body disposed inside the outer annular body, and an annular groove disposed between the outer annular body and the inner annular body. The first annular body is engaged with the annular groove. A first placement groove is formed on the first annular body, and a second placement groove is formed on the inner annular body. The sealing ring assembly includes a first sealing ring mounted on the first placement groove and a second sealing ring mounted on the second placement groove. The first sealing ring is pressed between the first annular body and the first placement groove. The inner annular body extends into the sealing cavity. One end of the second sealing ring is pressed against the second placement groove, and the other end is pressed against the TIR lens.

[0013] Preferably, a power supply line for the light source, which is electrically connected to the LED assembly, is inserted into one side of the sealed body.

[0014] Preferably, a mounting hole is provided on one side of the sealing body, a waterproof cable harness seat is fitted on the mounting hole, a third sealing ring is installed between the waterproof cable harness seat and one side wall of the sealing body, and the power cord of the light source is inserted into the waterproof cable harness seat.

[0015] Preferably, a fan power cable is connected to one side of the light source power cable, and the fan power cable is electrically connected to the cooling fan.

[0016] Preferably, the sealing body of the sealing housing is integrally formed with the heat dissipation housing.

[0017] Preferably, one end of the sealing body is provided with a plurality of first heat dissipation fins, and the side wall of the heat dissipation shell is provided with a plurality of second heat dissipation fins, the second heat dissipation fins and the second vent are arranged alternately.

[0018] Preferably, one end of the heat dissipation housing is equipped with a mounting cover plate, the heat dissipation fan is mounted on the mounting cover plate, and the first vent is opened on the mounting cover plate.

[0019] Preferably, the cooling fan is a waterproof fan.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. The shell of this utility model is divided into two main parts:

[0022] Part 1: Sealing housing. The sealing housing is connected by a sealing body and a sealing cover, and a sealing ring assembly is provided between the sealing body and the sealing cover to ensure that the sealing housing as a whole has good sealing performance.

[0023] Furthermore, the LED components are directly mounted on the sealed cavity, allowing them to directly conduct heat to the sealed housing.

[0024] Part Two: Heat Dissipation Housing. The heat dissipation housing is located at one end of the sealed housing. The sealed housing directly conducts heat to the heat dissipation housing. The heat dissipation housing is connected to the first vent -> cooling fan -> heat dissipation cavity -> second vent. The cooling fan then conducts the heat from the sealed housing end in the heat dissipation cavity and the heat dissipation housing to the outside of the second vent, thus ensuring that the housing as a whole has good heat dissipation performance.

[0025] 2. In summary, the high-power point light source provided by this utility model has good sealing and heat dissipation. It achieves sealing and heat dissipation through an active heat dissipation method using a sealed outer shell and a heat dissipation shell extending from one end of the sealed outer shell. This ensures that the point light source has good sealing and heat dissipation, thereby ensuring stable operation of the high-power, high-brightness illumination of the point light source. It also ensures that the point light source is suitable for machine vision inspection scenarios with high sealing requirements. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of a high-power point light source with good sealing and heat dissipation provided by an embodiment of the present invention;

[0028] Figure 2 This is a front cross-sectional view of a high-power point light source with good sealing and heat dissipation provided by an embodiment of this utility model;

[0029] Figure 3 This is a schematic diagram of the oblique side structure of a high-power point light source with good sealing and heat dissipation provided by an embodiment of this utility model;

[0030] Figure 4 This is a front cross-section and exploded structural diagram of a high-power point light source with good sealing and heat dissipation provided by an embodiment of this utility model.

[0031] The diagram includes:

[0032] 1. Housing; 11. Sealed housing; 111. Sealing body; 1111. First annular body; 11115. First placement groove; 1118. Mounting hole; 1119. First heat dissipation fin; 112. Sealing cover; 1121. Second annular body; 11211. Outer annular body; 11212. Inner annular body; 112125. Second placement groove; 11213. Annular groove; 113. Sealing cavity; 12. Heat dissipation housing; 121. Second 1. Heat sink fins; 2. Sealing ring assembly; 21. First sealing ring; 22. Second sealing ring; 23. Third sealing ring; 31. LED assembly; 311. LED beads; 312. PCB board; 32. TIR lens; 33. Light guide element; 41. Cooling fan; 51. First vent; 52. Heat dissipation cavity; 53. Second vent; 61. Light source power cable; 62. Fan power cable; 63. Waterproof cable tie; 70. Mounting cover. Detailed Implementation

[0033] The technical solution of this embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiment is one embodiment of the present invention, and not all embodiments thereof. Based on this embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figures 1 to 4 The present invention provides a high-power point light source with good sealing and heat dissipation, including a housing 1. The housing 1 includes a sealing housing 11 and a heat dissipation housing 12 disposed at one end of the sealing housing 11. The sealing housing 11 includes a sealing body 111, a sealing cover 112 snapped onto one end of the sealing body 111, and a sealing ring assembly 2 abutting between the sealing body 111 and the sealing cover 112. A sealing cavity 113 is formed inside the sealing body 111 and the sealing cover 112. An LED assembly 31, a TIR lens 32, and a light guide element 33 are sequentially disposed on the sealing cavity 113. A heat dissipation cavity 52 is formed inside the heat dissipation housing 12. A cooling fan 41 is installed at one end of the heat dissipation housing 12. A first ventilation port 51 is formed at one end of the heat dissipation housing 12. A plurality of second ventilation ports 53 are formed on the side wall of the heat dissipation housing 12. The first ventilation port 51, the heat dissipation cavity 52, and the second ventilation ports 53 are sequentially connected.

[0035] LED component 31 is located at one end of sealed cavity 113, TIR lens 32 is located at one end of LED component 31, and light guide element 33 is a light guide post inserted into sealed cover 112.

[0036] The LED component 31 includes a PCB board 312 and LED beads 311 disposed on the PCB board 312. The PCB board 312 is directly connected to one end of the sealing cavity 113 by a threaded connection. When the LED beads 311 heat up, the heat of the LED beads 311 is directly conducted to the PCB board 312, and the heat of the PCB board 312 is directly conducted to the sealing body 111.

[0037] The sealing body 111 has a first annular body 1111 at one end, and the sealing cap 112 has a second annular body 1121 at one end. The second annular body 1121 includes an outer annular body 11211, an inner annular body 11212 disposed inside the outer annular body 11211, and an annular groove 11213 disposed between the outer annular body 11211 and the inner annular body 11212. The first annular body 1111 is engaged with the annular groove 11213. A first placement groove 11115 is formed on the first annular body 1111. The inner annular body 11212... The sealing cover 112 has a second placement groove 112125. The sealing ring assembly 2 includes a first sealing ring 21 installed on the first placement groove 11115 and a second sealing ring 22 installed on the second placement groove 112125. The first sealing ring 21 abuts against the first annular body 1111 and the first placement groove 11115. The inner annular body 11212 extends into the sealing cavity 113. One end of the second sealing ring 22 abuts against the second placement groove 112125, and the other end abuts against the TIR lens 32. The first sealing ring 21 and the second sealing ring 22 ensure good sealing performance between the sealing cover 112 and the sealing body 111.

[0038] A power supply line 61 for the light source, which is electrically connected to the LED assembly 31, is inserted into one side of the sealed body 111.

[0039] A mounting hole 1118 is provided on one side of the sealing body 111. A waterproof cable harness seat 63 is fitted onto the mounting hole 1118. A third sealing ring 23 is installed between the waterproof cable harness seat 63 and one side wall of the sealing body 111. The light source power cable 61 is inserted into the waterproof cable harness seat 63. The waterproof cable harness seat 63 and the third sealing ring 23 ensure good sealing performance between the light source power cable 61 and the sealing body 111.

[0040] A fan power cable 62 is connected to one side of the light source power cable 61, and the fan power cable 62 is electrically connected to the cooling fan 41.

[0041] The sealing body 111 of the sealing housing 11 is integrally formed with the heat dissipation housing 12. This integral forming ensures that the heat on the sealing body 111 can be directly conducted to the heat dissipation housing 12.

[0042] The sealing body 111 has a number of first heat dissipation fins 1119 at one end, and the heat dissipation shell 12 has a number of second heat dissipation fins 121 on the side wall. The second heat dissipation fins 121 and the second vent 53 are arranged alternately.

[0043] The heat sink housing 12 is equipped with a mounting cover 70 at one end, the heat sink fan 41 is mounted on the mounting cover 70, and the first vent 51 is opened on the mounting cover 70.

[0044] The cooling fan 41 is a waterproof fan. This makes the cooling fan 41 more suitable for scenarios with water vapor, oil mist, or spray washing.

[0045] The optical path principle of a high-power point light source with good sealing and heat dissipation in an embodiment of this utility model is as follows: the LED beads 311 of the LED component 31 emit a divergent light source -> the TIR lens 32 focuses and evenly illuminates the divergent light source onto the light guide column, and the light guide column illuminates the object under test, thereby providing the object under test with a high-power high-brightness illumination.

[0046] The sealing principle of a high-power point light source with good sealing and heat dissipation in an embodiment of this utility model is as follows: the first sealing ring 21 ensures the sealing performance between the sealing cover 112 and the sealing body 111; furthermore, the second sealing ring 22 ensures the sealing performance between the sealing cover 112 and the TIR lens 32; and the third sealing ring 23 ensures the sealing performance between the light source power line 61 and the sealing body 111, thus ensuring the sealing performance of the sealing shell 11 and preventing external moisture and oil mist from entering the LED assembly 31 and causing the LED beads 311 and / or PCB board 312 to fail.

[0047] The heat dissipation principle of a high-power point light source with good sealing and heat dissipation in an embodiment of this utility model is as follows:

[0048] A. The heat conduction path of this point light source is: LED lamp bead 311 → PCB board 312 → sealing body 111 of the sealed housing 11 → heat dissipation housing 12;

[0049] B. The active heat dissipation path of the point light source is: air intake through the first vent 51 → cooling fan 41 → heat dissipation cavity 52, first heat dissipation fin 1119 at one end of the sealed body 111 → air exhaust through the second vent 53, second heat dissipation fin 121 of the heat dissipation shell 12;

[0050] Through the above A+B, efficient active heat dissipation of the point light source is achieved.

[0051] The technical advantage of this utility model's embodiment of a high-power point light source with good sealing and heat dissipation is that it can effectively combine the sealing performance and heat dissipation performance of the light source. That is, through the "sealed housing 11 + active heat dissipation" method, the point light source has good sealing performance and good heat dissipation performance, thereby ensuring the stable operation of the high-power, high-brightness illumination of the point light source, and also ensuring that the point light source is suitable for machine vision inspection scenarios with high sealing requirements.

[0052] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A high-power point light source with good sealing and heat dissipation, comprising a housing (1), characterized in that, The housing (1) includes a sealing housing (11) and a heat dissipation housing (12) disposed at one end of the sealing housing (11). The sealing housing (11) includes a sealing body (111), a sealing cover (112) snapped onto one end of the sealing body (111), and a sealing ring assembly (2) abutting between the sealing body (111) and the sealing cover (112). A sealing cavity (113) is formed inside the sealing body (111) and the sealing cover (112). The sealing cavity (113) is provided with a sealing ring assembly (2) on which the sealing ring assembly (113) is formed. The heat sink (12) is provided with an LED assembly (31), a TIR lens (32) and a light guide element (33). A heat dissipation cavity (52) is provided inside the heat sink (12). A cooling fan (41) is installed at one end of the heat sink (12). A first ventilation port (51) is provided at one end of the heat sink (12). Several second ventilation ports (53) are provided on the side wall of the heat sink (12). The first ventilation port (51), the heat dissipation cavity (52) and the second ventilation ports (53) are connected in sequence.

2. The high-power point light source with good sealing and heat dissipation as described in claim 1, characterized in that, The LED assembly (31) is located at one end of the sealed cavity (113), the TIR lens (32) is located at one end of the LED assembly (31), and the light guide element (33) is a light guide post, which is inserted into the sealed cover (112).

3. The high-power point light source with good sealing and heat dissipation as described in claim 1, characterized in that, The sealing body (111) has a first annular body (1111) at one end, and the sealing cap (112) has a second annular body (1121) at one end. The second annular body (1121) includes an outer annular body (11211), an inner annular body (11212) disposed inside the outer annular body (11211), and an annular groove (11213) disposed between the outer annular body (11211) and the inner annular body (11212). The first annular body (1111) is engaged with the annular groove (11213). A first placement groove (11115) is provided on the first annular body (1111). The inner annular body (11211) The first sealing ring assembly (2) includes a first sealing ring (21) installed on the first placement groove (11115) and a second sealing ring (22) installed on the second placement groove (112125). The first sealing ring (21) abuts against the first annular body (1111) and the first placement groove (11115). The inner annular body (11212) extends into the sealing cavity (113). One end of the second sealing ring (22) abuts against the second placement groove (112125) and the other end abuts against the TIR lens (32).

4. A high-power point light source with good sealing and heat dissipation as described in claim 1, characterized in that, A light source power line (61) electrically connected to the LED assembly (31) is inserted into one side of the sealed body (111).

5. A high-power point light source with good sealing and heat dissipation according to claim 4, characterized in that, The sealing body (111) has an installation hole (1118) on one side, and a waterproof cable tray (63) is fitted on the installation hole (1118). A third sealing ring (23) is installed between the waterproof cable tray (63) and one side wall of the sealing body (111), and the light source power cord (61) is inserted into the waterproof cable tray (63).

6. A high-power point light source with good sealing and heat dissipation according to claim 4, characterized in that, The power supply line (61) of the light source is connected to a fan power supply line (62) on one side, and the fan power supply line (62) is electrically connected to the cooling fan (41).

7. A high-power point light source with good sealing and heat dissipation as described in claim 1, characterized in that, The sealing body (111) of the sealing housing (11) is integrally formed with the heat dissipation housing (12).

8. A high-power point light source with good sealing and heat dissipation according to claim 1, characterized in that, The sealing body (111) has a plurality of first heat dissipation fins (1119) at one end, and the heat dissipation shell (12) has a plurality of second heat dissipation fins (121) on its side wall. The second heat dissipation fins (121) and the second vent (53) are arranged alternately.

9. A high-power point light source with good sealing and heat dissipation according to claim 1, characterized in that, The heat dissipation housing (12) is provided with a mounting cover plate (70) at one end, the heat dissipation fan (41) is mounted on the mounting cover plate (70), and the first vent (51) is opened on the mounting cover plate (70).

10. A high-power point light source with good sealing and heat dissipation according to claim 1, characterized in that, The cooling fan (41) is a waterproof fan.

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