Three-dimensional safety sensor

Abstract

The utility model relates to a three-dimensional safety sensor, which belongs to the technical field of sensors and comprises a shell, a lens assembly, a light emitting assembly and a main control board. The lens assembly is arranged in the accommodating chamber and comprises a lens mounting piece and a lens body arranged on the lens mounting piece; the light emitting assembly is arranged in the containing cavity and comprises a light emitting lamp panel, and a light emitting piece is arranged on the light emitting lamp panel. The main control board is arranged in the containing cavity and used for controlling the light emitting assembly to emit light signals and processing light signals received by the lens assembly, the containing cavity is formed in the shell, and the lens assembly, the light emitting assembly and the main control board are arranged in the containing cavity, so that the structure of the camera is simpler; and the lens assembly, the light emitting assembly and the main control board can be protected, so that external articles are prevented from being in contact with the lens assembly, the light emitting assembly and the main control board.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, and more particularly to a three-dimensional safety sensor. Background Art

[0002] The time-of-flight method measures the three-dimensional structure or contour of an object by measuring the time interval between the emission and reception of a pulse signal from the instrument, or the phase difference generated by a laser's round trip to the object. TOF measurement instruments can simultaneously generate grayscale and distance images and are widely used in fields such as motion control, behavioral analysis, surveillance, autonomous driving, artificial intelligence, machine vision, and automated 3D modeling.

[0003] A 3D safety sensor generally includes a light source module and a photosensitive module. The light source module emits pulsed detection light of a specific wavelength and frequency. The detection light is reflected from the surface of the object being measured and received by the photosensitive module. The photosensitive module calculates the distance, structure, and size of the object being measured based on the time difference or phase difference between the emitted and received light waves.

[0004] Traditional three-dimensional safety sensors have a complex structure, so maintenance and repair usually require professionals to spend a lot of time, which increases maintenance costs and difficulty. The complex structure also makes the maintenance process more cumbersome. Utility Model Content

[0005] The technical problem to be solved by the present invention is that, due to the complex structure of traditional three-dimensional safety sensors, maintenance and repair usually require professionals to spend a lot of time, which increases the maintenance cost and difficulty. The complex structure also makes the repair process more cumbersome. In view of the above-mentioned defects of the existing technology, a three-dimensional safety sensor is provided.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] Construct a three-dimensional safety sensor, including:

[0008] A housing, wherein a receiving chamber is provided in the middle of the housing;

[0009] A lens assembly is disposed in the accommodating chamber and includes a lens mounting member and a lens body disposed on the lens mounting member;

[0010] A light emitting assembly is disposed in the accommodating chamber, and includes a light emitting lamp board and a light emitting element disposed on the light emitting lamp board;

[0011] A main control board is arranged in the accommodating chamber and is used to control the light emitting component to emit light signals and process light signals received by the lens component.

[0012] Optionally, the shell includes a middle shell and shell cover assemblies arranged at opposite ends of the middle shell, and the middle shell and the shell cover assemblies are detachably connected and enclosed to form the accommodating chamber.

[0013] Optionally, the shell cover assembly is provided with an assembly portion, and a plane or arc-shaped filter is installed in the assembly portion.

[0014] Optionally, the shell cover assembly includes a front cover and a rear cover, the assembly portion includes a through groove arranged in the middle of the front cover body and facing the light emitting element, and a step groove arranged in the through groove, and the filter is installed in the step groove.

[0015] Optionally, the lens mounting component includes a lens board, a lens body arranged on the lens board, and a mounting bracket for assembling the lens board, the mounting bracket includes a bracket body and mounting blocks arranged on opposite sides of the bracket body, the mounting block is provided with a first connecting through hole passing through its opposite ends, the front cover is provided with a first connecting column that cooperates with the first connecting through hole to detachably connect the mounting block to the front cover, a second connecting column is provided on the side of the bracket body close to the lens board, and the lens board is provided with a first connecting hole that cooperates with the second connecting column to connect the bracket body to the lens board.

[0016] Optionally, it includes a main heat dissipation bracket and an extended heat dissipation bracket for dissipating heat to the main control board, the main heat dissipation bracket includes a heat dissipation main body and a heat dissipation guide arranged on one side of the heat dissipation main body, one end of the heat dissipation main body is provided with a heat conductive part in contact with the main control board, and the heat dissipation guide is close to the inner wall of the shell.

[0017] Optionally, the extended heat dissipation bracket includes a first heat dissipation plate and a second heat dissipation plate vertically opposite to the first heat dissipation plate. A guide mounting groove is provided at one end of the heat dissipation main body. The guide mounting groove and the heat conductive part are located on the same side. The first heat dissipation plate is detachably connected to the guide mounting groove, and the second heat dissipation plate is tightly attached to the shell.

[0018] Optionally, the back cover is provided with an aviation plug connecting the inside and outside thereof, and the inner side of the back cover is provided with an interface board electrically connected to the aviation plug, the interface board is electrically connected to the matching board, and the matching board is provided between the main control board and the interface board.

[0019] Optionally, a plurality of second connecting through holes are provided on a side of the main control board close to the matching board, a third connecting column is provided on a side of the matching board close to the main control board, a clamping rod is provided on one end of the third connecting column close to the main control board, a fourth connecting column is provided on a side of the heat dissipation main body close to the main control board, a clamping rod is provided on the fourth connecting column that can pass through the second connecting through hole and clamp with the clamping hole, the main control board is arranged between the third connecting column and the fourth connecting column, a positioning through hole is provided on the matching board, and a positioning guide column adapted to the positioning through hole is provided on the mounting bracket.

[0020] Optionally, a fixed assembly block is provided on the inner wall of the middle shell, the front cover is provided with a first fixed assembly column, the fixed assembly block is provided with a first assembly through hole passing through its opposite ends, the fixed assembly block is provided with a first positioning hole corresponding to the first fixed assembly column at one end close to the front cover, and the first fixed assembly column is provided with a third connecting hole at one end close to the first assembly block, and the fixed assembly block and the first fixed assembly column can be connected by a connecting piece passing through the first assembly through hole and then cooperating with the third connecting hole.

[0021] The beneficial effects of the present invention are:

[0022] 1. The utility model has a housing chamber in the shell, and the lens assembly, light emitting assembly and main control board are arranged in the housing chamber, so that the structure of the utility model is simpler, and the lens assembly, light emitting assembly and main control board can be protected, avoiding contact between foreign objects and the lens assembly, light emitting assembly and main control board. The light emitting assembly can also emit light pulses to the target object, and then receive the light pulses through the lens assembly. The main control board calculates the distance between the target object and the three-dimensional safety sensor based on the flight time difference of the light from emission to reception. At the same time, the size and shape of the object can be measured based on the flight time difference of the light at each angle, and the robot can be set to perform obstacle avoidance and recognition. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work:

[0024] Figure 1 It is an overall axonometric exploded schematic diagram of the present invention.

[0025] Figure 2 This is another overall axonometric exploded schematic diagram of the present invention.

[0026] Figure 3 It is an overall side schematic diagram of the utility model.

[0027] Figure 4 This utility model is along Figure 3 Schematic diagram of the section along the AA line.

[0028] Figure 5 It is an overall exploded side view of the present invention.

[0029] Figure 6 It is an overall axonometric schematic diagram of the present invention.

[0030] The accompanying drawings are:

[0031] 100, housing; 110, accommodating chamber; 120, front cover; 121, through groove; 122, stepped groove; 123, filter; 124, first fixed assembly post; 125, first sealing groove; 126, third connecting hole; 130, rear cover; 131, second sealing groove; 140, middle housing; 141, fixed assembly block; 141.1, first assembly through hole; 141.2, first positioning hole; 141.3, second assembly through hole; 141.4, third assembly through hole; 150, sealing assembly;

[0032] 211, lens plate; 212, lens body; 213, mounting bracket; 213.1, bracket body; 213.2, mounting block; 213.3, first connecting through hole; 213.4, second connecting column; 213.5, second fixing assembly column; 213.6, first connecting hole; 221, second connecting hole; 230, cable routing;

[0033] 300, light emitting assembly; 310, light emitting light board; 320, light emitting element;

[0034] 400, main control board; 410, second connecting through hole;

[0035] 500, aviation plug;

[0036] 600, interface board;

[0037] 710, heat dissipation main body; 711, guide installation groove; 712, fourth connecting column; 713, snap-fit ​​hole; 714, third connecting through hole; 715, guide groove; 720, heat dissipation guide; 730, heat conducting member;

[0038] 800, extended heat dissipation bracket; 810, first heat dissipation plate; 820, second heat dissipation plate;

[0039] 900, matching plate; 910, third connecting column; 911, clamping rod. DETAILED DESCRIPTION

[0040] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] In the description of the embodiments of this application, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on the specific circumstances.

[0042] In the embodiments of the present application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 embodiments of the present application. In this specification, the schematic representations of the above terms do 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. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0044] The present utility model is implemented as follows Figures 1-6As shown in, it relates to a three-dimensional safety sensor, including a shell 100, a lens assembly, a light emitting assembly 300, and a main control board 400. A accommodating chamber 110 is provided in the middle of the shell 100; the lens assembly is arranged in the accommodating chamber 110 and includes a lens mounting member and a lens body 212 arranged on the lens mounting member; the light emitting assembly 300 is arranged in the accommodating chamber 110, and the light emitting assembly 300 includes a light emitting lamp board 310, and a light emitting element 320 is arranged on the light emitting lamp board 310; the main control board 400 is arranged in the accommodating chamber 110 and is used to control the light emitting assembly 300 to emit light signals and process the light signals received by the lens assembly. Furthermore, the utility model provides a accommodating chamber 110 in the shell 100, and the lens assembly, the light emitting assembly 300 and the main control board 400 are arranged in the accommodating chamber 1 10, which makes the structure of the utility model simpler and can protect the lens assembly, the light emitting assembly 300 and the main control board 400, avoiding contact between foreign objects and the lens assembly, the light emitting assembly 300 and the main control board 400. Specifically, the light emitting assembly 300 can emit a light pulse to the target object, and then the light pulse is received by the lens assembly. The main control board 400 calculates the distance between the target object and the three-dimensional safety sensor according to the flight time difference of the light from emission to reception. At the same time, the size and shape of the object can be measured according to the flight time difference of the light at each angle, and the robot can be set to perform obstacle avoidance and recognition. In this embodiment, the middle shell 140 is square, and the front cover 120 and the rear cover 130 include a mounting plate, and the mounting plate is integrally formed with a ring or square convex strip on the side close to the middle shell 140.

[0045] In this embodiment, the housing 100 includes a middle shell and a shell cover assembly provided at opposite ends of the middle shell. The middle shell and the shell cover assembly are detachably connected and enclosed to form the accommodating chamber 110. Furthermore, the shell cover assembly is provided with an assembly portion, and a plane or arc-shaped filter 123 is installed in the assembly portion. Furthermore, the shell cover assembly includes a front cover 120 and a rear cover. The assembly portion includes a through groove 121 provided in the middle of the front cover 120 and facing the light emitting element 320, and a step groove provided in the through groove. 122, the filter 123 is arranged in the step groove 122. Since the middle shell 140 and the shell cover assembly are detachably connected and enclose the accommodating chamber 110, and the shell cover assembly includes a front cover 120 and a rear cover 130, the user can easily separate the middle shell 140 from the front cover 120 and / or the rear cover 130 to inspect the components in the accommodating chamber 110, and the user can use a flat square or curved filter 123 according to their own needs. The filter 123 is bonded to the step groove 122 by an adhesive, such as glue.

[0046] See Figure 1-Figure 5 In this embodiment, the lens mounting assembly includes a lens board 211, a lens body 212 disposed on the lens board 211, and a mounting bracket 213 for mounting the lens board 211. The mounting bracket 213 includes a bracket body 213.1 and mounting blocks 213.2 disposed on opposite sides of the bracket body 213.1. The mounting blocks 213.2 are provided with first connecting holes 213.3 extending through opposite ends thereof. The front cover 120 is provided with first connecting holes 213.3. 3 cooperates with the first connecting column to detachably connect the mounting block 213.2 to the front cover 120, a second connecting column 213.4 is provided on the side of the bracket body 213.1 close to the lens board 211, and a first connecting hole 213.6 is provided on the lens board 211 to cooperate with the second connecting column 213.4 to connect the bracket body 213.1 to the lens board 211. Further, by assembling the lens board 211 on the mounting bracket 213, it is possible to better inspect the lens board 211 when it is needed. Directly remove the lens board 211 from the mounting bracket 213 for inspection. During assembly, it is only necessary to assemble the lens board 211 onto the mounting bracket 213, and then connect the mounting bracket 213 to the front cover 120 through the first connecting through hole 213.3 on the mounting block 213.2 and the first connecting column. The first connecting through hole 213.3 is a plug hole, and the first connecting column is a plug column. The lens board 211 can be connected to the bracket body 213 through the first connecting hole 213.6 and the second connecting column 213.4. 13.1 connection, the first connecting hole 213.6 is a plug-in hole, the second connecting column 213.4 is a plug-in column, and the first connecting through hole 213.3, the first connecting hole 213.6, the first connecting column and the second connecting column 213.4 are each provided in plurality. The presence of the plug-in hole and the plug-in column allows the lens board 211 and the mounting bracket 213 to be quickly disassembled and assembled. Optionally, a positioning through hole is provided on the matching plate 900, and a positioning guide column adapted to the positioning through hole is provided on the mounting bracket 213.

[0047] See Figures 1-6 In this embodiment, the back cover 130 is provided with an aviation plug 500 that connects the inside and outside thereof. The inner side of the back cover 130 is provided with an interface board 600 that is electrically connected to the aviation plug 500. The interface board 600 is electrically connected to the matching board 900. The matching board 900 is arranged between the main control board 400 and the interface board 600. The electrical connection between the interface board 600 and the matching board 900 ensures efficient and stable transmission of signals inside the device. Optionally, the interface board 600 and the matching board 900 achieve electrical connection through the cooperation between the male and female connectors.

[0048] See Figure 1-Figure 5 In this embodiment, a main heat dissipation bracket and an extended heat dissipation bracket 800 are included for dissipating heat from the main control board 400. The main heat dissipation bracket includes a heat dissipation main body 710 and a heat dissipation guide 720 arranged on one side of the heat dissipation main body 710. One end of the heat dissipation main body 710 is provided with a heat conductive member 730 in contact with the main control board 400. The heat dissipation guide 720 is closely attached to the inner wall of the shell 100. Further, the extended heat dissipation bracket 800 includes a first heat dissipation plate 810 and a second heat dissipation plate 820 vertically opposite to the first heat dissipation plate 810. One end of the heat dissipation main body 710 is provided with a guide mounting groove 711. The guide mounting groove 711 and the heat conductive member 730 are located on the same side. The first heat dissipation plate 810 is detachably connected to the guide mounting groove 711. The second heat dissipation plate 820 is closely attached to the shell 100. Specifically, the heat of the motherboard can be conducted to the heat dissipation main body through the heat conductive member 730. 710, and then the heat on the heat dissipation main body 710 is conducted to the heat dissipation guide 720 and the first heat dissipation plate 810, the heat of the heat dissipation guide 720 is conducted to the middle shell 140, the heat of the first heat dissipation plate 810 is conducted to the second heat dissipation plate 820, and the heat of the second heat dissipation plate 820 is conducted to the middle shell 140. In this embodiment, the heat conduction member 730 is block-shaped, and the side of the heat conduction member 730 in contact with the main control board 400 is provided with a first heat dissipation patch, the end of the heat dissipation guide 720 in contact with the middle shell 140 is provided with a second heat dissipation patch, and the end of the second heat dissipation plate 820 in contact with the middle shell 140 is provided with a third heat dissipation patch. The bottom of the guide installation groove 711 is provided with a threaded hole, and the first heat dissipation plate 810 is provided with connecting through holes running through its opposite ends. By passing a bolt through the connecting through hole and then connecting it with the first threaded hole, the first heat dissipation plate 810 is installed in the guide installation groove 711.

[0049] See Figure 1-Figure 5In this embodiment, a plurality of second connecting through holes 410 are provided on the side of the main control board 400 close to the matching board 900, a third connecting column 910 is provided on the side of the matching board 900 close to the main control board 400, a clamping rod 911 is provided on one end of the third connecting column 910 close to the main control board 400, a fourth connecting column 712 is provided on the side of the heat dissipation main body 710 close to the main control board 400, and a clamping hole 713 is provided on the fourth connecting column 712 that can be clamped with the clamping rod 911. 0 is disposed between the third connecting post 910 and the fourth connecting post 712. Furthermore, during assembly, the main control board 400 is placed between the third connecting post 910 and the fourth connecting post 712. The clamping rod 911 is then inserted through the second connecting through-hole 410 and engaged with the clamping hole 713. At this point, the first connecting post and the fourth connecting post 712 clamp the main control board 400 to secure it. Through the clamping action of the third connecting post 910 and the fourth connecting post 712, the main control board 400 is more evenly supported and secured. This design effectively prevents the main control board 400 from loosening or being damaged in vibration or shock environments, thereby improving the reliability and durability of the device. The third connecting post 910 is a copper post.

[0050] See Figures 1-6In this embodiment, a fixed assembly block 141 is provided on the inner wall of the middle shell 140, and the front cover 120 is provided with a first fixed assembly column 124. The fixed assembly block 141 is provided with first assembly through holes 141.1 running through opposite ends thereof. The end of the fixed assembly block 141 close to the front cover 120 is provided with a first positioning hole 141.2 corresponding to the first fixed assembly column 124. The end of the first fixed assembly column close to the first assembly block is provided with a third connecting hole 126. The fixed assembly block 141 and the first fixed assembly column 124 can be connected by a connecting piece passing through the first assembly through hole 141.1 and then cooperating with the third connecting hole 126. Further, the first fixed assembly column 124 can be positioned by inserting the first fixed assembly column 124 into the first positioning hole 141.2, and then the connecting piece can be passed through the first assembly through hole 141.1 and then connected to the third connecting hole 126. The fixed assembly block 141 and the first fixed assembly column 124 are matched to connect to connect the middle shell 140 with the front cover 120. In this embodiment, the connecting member may be a bolt, and the third connecting hole 126 may be a threaded hole. In some embodiments, the connecting member may also be a plug-in rod, and the third connecting hole 126 is a plug-in hole. A second assembly through hole 141.3 is provided on the side of the middle shell 140 close to the rear cover 130, and a third assembly through hole 141.4 is provided on the rear cover 130 to match the second assembly through hole 141.3. The second assembly through hole 141.3 may be a threaded hole, and the bolt is passed through the third assembly through hole 141.4 and connected to the second assembly through hole 141.3 to connect the rear cover 130 with the middle shell 140. In some embodiments, the second assembly through hole 141.3 may also be a plug-in hole, which can be plugged into the plug-in hole after passing through the third assembly through hole 141.4 by a plug-in column.

[0051] See Figure 1-Figure 5 In this embodiment, a first sealing groove 125 is provided on a side of the front cover 120 close to the middle shell 140, and a second sealing groove 131 is provided on a side of the rear cover 130 close to the middle shell 140. A sealing assembly 150 is provided in the first sealing groove and the second sealing groove. Furthermore, the cooperation between the first sealing groove 125 and the sealing assembly 150 can prevent water from flowing into the front cover 120 and the middle shell 140 at the front cover 120, and the cooperation between the second sealing groove 131 and the sealing assembly 150 can prevent water from flowing into the front cover 120 and the middle shell 140 at the rear cover 130 to ensure the normal operation of the system. Optionally, the first sealing groove 125 and the second sealing groove 131 are annular or square.

[0052] See Figure 1-Figure 2In this embodiment, the lens board 211 is electrically connected to the matching board 900 via a flat cable 230. The flat cable 230 can efficiently transmit electrical signals. The use of the flat cable 230 to connect the lens board 211 and the matching board 900 can ensure the fast and accurate transmission of key information such as video signals and control signals.

[0053] See Figure 1-Figure 2 In this embodiment, the heat dissipation main body 710 is provided with third connecting through holes 714 running through its opposite ends, and the heat dissipation main body 710 is provided with a guide groove 715 on the side close to the lens assembly, and the guide groove 715 is connected to the third connecting through hole 714, and the bracket body 213.1 is provided with a second fixed assembly column 213.5 on the side close to the heat dissipation main body 710, and the second fixed assembly column 213.5 is provided with a second connecting hole 221 at one end close to the heat dissipation main body 710. Further, the guide groove 715 is U-shaped. When assembling the main heat dissipation bracket, the guide groove 715 on the heat dissipation main body 710 is first brought into contact with the second fixed assembly column 213.5. At this time, the main heat dissipation bracket can be displaced along the guide groove 715 toward the middle shell 140, so that the heat dissipation guide 72 0 is in close contact with the middle shell 140, preventing the first heat dissipation patch from rubbing against the middle shell 140, and then connected to the second connection hole 221 through the third connection through hole 714 through the connecting piece, and the first heat dissipation plate 810 of the extended heat dissipation bracket 800 is placed in the guide installation groove 711, and the first heat dissipation plate 810 can be displaced along the guide installation groove 711 toward the middle shell 140, so that the second heat dissipation patch on the second heat dissipation plate 820 is in close contact with the middle shell 140, preventing the second heat dissipation patch from rubbing against the middle shell 140, and preventing the guide installation groove 711 from being provided with a threaded hole. A through hole compatible with the threaded hole is provided on the first heat dissipation plate 810, and a bolt can be passed through the through hole and threadedly connected to the threaded hole to install the first heat dissipation plate 810. The connecting piece can be a bolt, and the second connection hole 221 can be a threaded hole.

[0054] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this utility model.

Claims

1. A three-dimensional safety sensor, characterized in that: include: A housing (100), wherein a receiving chamber (110) is provided in the middle of the housing (100); A lens assembly is disposed in the accommodating chamber (110) and includes a lens mounting member and a lens body (212) disposed on the lens mounting member; A light emitting assembly (300), the light emitting assembly (300) being disposed in the accommodating chamber (110), the light emitting assembly (300) comprising a light emitting lamp board (310) and a light emitting element (320) disposed on the light emitting lamp board (310); A main control board (400) is arranged in the accommodating chamber (110) and is used to control the light emitting assembly (300) to emit light signals and to process light signals received by the lens assembly.

2. A three-dimensional safety sensor according to claim 1, characterized in that: The shell comprises a middle shell (140) and shell cover assemblies arranged at opposite ends of the middle shell (140); the middle shell (140) and the shell cover assemblies are detachably connected and enclose the accommodating chamber (110).

3. A three-dimensional safety sensor according to claim 2, characterized in that: The shell cover assembly is provided with an assembly portion, and a plane or arc-shaped filter (123) is installed in the assembly portion.

4. A three-dimensional safety sensor according to claim 3, characterized in that: The housing cover assembly includes a front cover (120) and a rear cover (130), the assembly portion includes a through groove (121) arranged in the middle of the front cover (120) and facing the light emitting element (320), and a step groove (122) arranged in the through groove (121), and the filter (123) is installed in the step groove (122).

5. A three-dimensional safety sensor according to claim 4, characterized in that: The lens mounting member comprises a lens plate (211), a lens body (212) arranged on the lens plate (211), and a mounting bracket (213) for assembling the lens plate (211); the mounting bracket (213) comprises a bracket body (213.1) and mounting blocks (213.2) arranged on opposite sides of the bracket body (213.1); the mounting blocks (213.2) are provided with first connecting through holes (213.3) running through opposite ends thereof; the front cover (120 ) is provided with a first connecting column that cooperates with the first connecting through hole (213.3) to detachably connect the mounting block (213.2) and the front cover (120), a second connecting column (213.4) is provided on a side of the bracket body (213.1) close to the lens board (211), and a first connecting hole (213.6) is provided on the lens board (211) to cooperate with the second connecting column (213.4) to connect the bracket body (213.1) and the lens board (211).

6. A three-dimensional safety sensor according to claim 5, characterized in that: The invention comprises a main heat dissipation bracket and an extended heat dissipation bracket (800) for performing heat dissipation treatment on a main control board (400), wherein the main heat dissipation bracket comprises a heat dissipation main body (710) and a heat dissipation guide (720) arranged on one side of the heat dissipation main body (710), a heat conduction member (730) in contact with the main control board (400) is arranged at one end of the heat dissipation main body (710), and the heat dissipation guide (720) is closely attached to the inner side wall of the housing (100).

7. A three-dimensional safety sensor according to claim 6, characterized in that: The extended heat dissipation bracket (800) includes a first heat dissipation plate (810) and a second heat dissipation plate (820) vertically opposite to the first heat dissipation plate (810); a guide installation groove (711) is provided at one end of the heat dissipation main body (710); the guide installation groove (711) and the heat conducting member (730) are located on the same side; the first heat dissipation plate (810) is detachably connected to the guide installation groove (711); and the second heat dissipation plate (820) is closely attached to the housing (100).

8. A three-dimensional safety sensor according to claim 7, characterized in that: The rear cover (130) is provided with an aviation plug (500) communicating with the inside and outside thereof; the inner side of the rear cover (130) is provided with an interface board (600) electrically connected to the aviation plug (500); the interface board (600) is electrically connected to a matching board (900); and the matching board (900) is provided between the main control board (400) and the interface board (600).

9. The three-dimensional safety sensor according to claim 8, characterized in that: A plurality of second connecting through holes (410) are provided on a side of the main control board (400) close to the matching board (900); a third connecting column (910) is provided on a side of the matching board (900) close to the main control board (400); a clamping rod (911) is provided on one end of the third connecting column (910) close to the main control board (400); a fourth connecting column (712) is provided on a side of the heat dissipation main body (710) close to the main control board (400); a clamping rod (911) is provided on the fourth connecting column (712) and can pass through the second connecting through holes (410) and be clamped with the clamping hole (713); the main control board (400) is arranged between the third connecting column (910) and the fourth connecting column (712); a positioning through hole is provided on the matching board (900); and a positioning guide column adapted to the positioning through hole is provided on the mounting bracket (213).

10. The three-dimensional safety sensor according to claim 4, characterized in that: The inner wall of the middle shell (140) is provided with a fixed assembly block (141), the front cover (120) is provided with a first fixed assembly column (124), the fixed assembly block (141) is provided with a first assembly through hole (141.1) passing through its opposite ends, the fixed assembly block (141) is provided with a first positioning hole (141.2) corresponding to the first fixed assembly column (124) at one end close to the front cover (120), the first fixed assembly column (124) is provided with a third connecting hole (126) at one end close to the fixed assembly block, and the fixed assembly block (141) and the first fixed assembly column (124) can be connected by a connecting piece passing through the first assembly through hole (141.1) and then cooperating with the third connecting hole (126).

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