Human body detection device

Abstract

The utility model provides a human body detection device, comprising a housing used for external installation; the shell is covered with the thin shell part, and the thin shell part and the shell form a containing cavity; the light-emitting part is arranged in the containing cavity, and light emitted by the light-emitting part is diffused outwards through the thin shell part; the circuit module is arranged in the containing cavity, the circuit module comprises a first circuit board and a radar detection module electrically connected with the first circuit board, the light-emitting part is electrically connected to the first circuit board, the radar detection module is provided with an emitting surface, the emitting surface is arranged towards the thin shell part, and the emitting surface can emit radar detection waves; radar detection waves penetrate through the thin shell part to be emitted outwards and used for detecting whether a human body exists in an area or not, and the light-emitting part responds to the detection result of the radar detection module to switch the working state. The distance between the shell provided by the utility model and the external mounting surface is smaller, so that the human body detection device can realize the effect of ceiling mounting.

Description

Technical Field

[0001] The utility model relates to the field of sensors, in particular to a human body detection device. Background Art

[0002] With the development of smart homes, people's demand for smart life is getting higher and higher. To realize smart home scenes, smart sensing devices are indispensable. Only by obtaining accurate sensing results can a reliable execution basis be provided for terminal devices in smart scenes.

[0003] The human presence sensor uses a radar detection module to actively emit radar detection waves and receive reflected radar waves. It determines whether there are moving people or objects in the detection area based on the Doppler principle. Compared with the infrared human body sensor, the advantage of the radar detection module is that it can detect the slight movement of the human body. When the human body is still, it can also detect whether there is a person through the human body's breathing and heartbeat.

[0004] Existing ceiling-mounted human body detection devices with lighting functions generally set the radar detection module on the outside of the shell. The patent with application number 202222985729.1 discloses a microwave sensor and its shell, wherein the microwave sensor is connected to the upper surface of the lamp board through a snap buckle, and lamp beads are arranged on the lower surface of the lamp board. In order to prevent the microwaves emitted by the microwave sensor from being blocked by the lamp board, the lamp board is provided with a mounting hole, and the detection protrusion of the microwave sensor passes through the mounting hole and protrudes from the lower surface of the lamp board. The advantages of this arrangement are that the detection protrusion occupies a smaller area of ​​the lamp board, the main body of the microwave sensor is arranged on the lamp board to facilitate the separate wiring of the microwave sensor, and the microwave sensor is connected to the lamp board for easy installation and disassembly. However, the microwave sensor occupies the space at the top of the lamp board, resulting in a large distance between the lamp board and the ceiling board, making it difficult to achieve the effect of ceiling installation, and because the lamp board is provided with a mounting hole for the detection protrusion of the microwave sensor to pass through, the sealing of the lamp board is poor. Utility Model Content

[0005] One purpose of the utility model is to provide a human body detection device, wherein a radar detection module is integrated inside a accommodating cavity, thereby avoiding occupying the space above a shell, making the distance between the shell and an external mounting surface smaller, so that when the human body detection device is installed on a ceiling, a ceiling-mounted installation effect can be achieved; in addition, since the radar detection module is arranged inside the shell, there are no redundant openings on the upper surface of the shell except for the wire hole, and the sealing is better.

[0006] Another object of the utility model is to provide a human body detection device, wherein the circuit module is integrated inside the shell, the light-emitting component can be directly connected to the circuit module, and the circuit module is integrated with a driving module to enable the circuit module to directly drive the light-emitting component to work based on the electrical connection, thereby improving the response speed; the circuit module is integrated with a power supply module, and when wiring, the wiring can be completed by connecting the circuit module to household AC power, without the need to connect an additional power supply or driver, which is convenient and quick.

[0007] Another object of the utility model is to provide a human body detection device, wherein the vertical distance between the emitting surface and the thin shell is increased to prevent the emitting surface from projecting a shadow on the thin shell.

[0008] Another object of the present utility model is to provide a human body detection device, wherein a radar detection module is mounted on a first circuit board, and the distance between the emitting surface and the first circuit board is ensured to be greater than 5 mm, thereby achieving a balance between detection performance and shadow elimination.

[0009] Another object of the present invention is to provide a human body detection device, wherein the first circuit board is accommodated in the accommodating groove, thereby reducing the height of the circuit module protruding from the housing and reducing the shadow of the circuit module on the thin housing.

[0010] Another object of the present invention is to provide a human body detection device, wherein the circuit module is at least partially wrapped or covered by a covering member to prevent the electronic components from projecting shadows or mixed colors on the thin shell member.

[0011] Another object of the present utility model is to provide a human body detection device, wherein a heat shrink tube is sleeved on a circuit module, and shadows are eliminated by reflecting light through the white heat shrink tube.

[0012] Another object of the present invention is to provide a human body detection device, wherein the circuit module is in the shape of a long strip, and the circuit module and the conductive strip are arranged in parallel to reduce the shielding of light by the circuit module.

[0013] Another object of the utility model is to provide a human body detection device, wherein the first cylindrical capacitor is arranged flat to reduce the height of the first cylindrical capacitor, avoid the first cylindrical capacitor casting a shadow on the thin shell, and at the same time, avoid the first cylindrical capacitor from interfering with the radar detection module.

[0014] Another object of the present invention is to provide a human body detection device, wherein the side surface of the first cylindrical capacitor is against the MOS tube, so that the MOS tube dissipates heat through the first cylindrical capacitor.

[0015] Another object of the present invention is to provide a human body detection device, wherein the circuit module is covered by a cover structure to prevent the electronic components from projecting shadows or mixed colors on the thin shell.

[0016] Another object of the present utility model is to provide a human body detection device, wherein the light sensing module is arranged within the sleeve range of the heat shrink sleeve, which can effectively increase the light intensity range detected by the light sensing module.

[0017] Another object of the present invention is to provide a human body detection device, wherein the circuit module is arranged at a position corresponding to the center of the light emitting surface, so that the vertical distance between the circuit module and the thin shell is larger, thereby reducing the shadow produced by the circuit module.

[0018] Another object of the present invention is to provide a human body detection device, wherein the radar detection module is disposed at the end of the first circuit board to reduce the interference of electronic components to the radar detection module.

[0019] In order to achieve at least one of the above purposes, the utility model provides a human body detection device, including a shell, a thin shell member, a light-emitting member and a circuit module, the shell being used for external installation; the thin shell member is covered on the shell to form a accommodating cavity with the shell; the light-emitting member is arranged inside the accommodating cavity, and the light emitted by the light-emitting member is diffused outward through the thin shell member; the circuit module is arranged inside the accommodating cavity, the circuit module includes a first circuit board and a radar detection module electrically connected to the first circuit board, the light-emitting member is electrically connected to the first circuit board, the radar detection module has an emitting surface, the emitting surface is arranged toward the thin shell member, the emitting surface can emit radar detection waves, the radar detection waves are emitted outward through the thin shell member, and are used to detect whether there is a human body in an area, and the light-emitting member switches the working state in response to the detection result of the radar detection module.

[0020] Furthermore, the radar detection module is directly or indirectly mounted on the first circuit board, the vertical distance between the emitting surface and the thin shell is greater than 18 mm, and the distance between the emitting surface and the first circuit board is greater than 5 mm.

[0021] Furthermore, a receiving groove is recessed on one side of the shell body facing the thin shell member, and the first circuit board is received in the receiving groove.

[0022] In some embodiments, the human body detection device further includes a covering, and the circuit module is at least partially wrapped or covered by the covering.

[0023] Furthermore, the covering member is configured as a white heat shrink tubing, and the circuit module is at least partially covered by the heat shrink tubing.

[0024] Furthermore, the circuit module includes a light sensing module, which can sense light illumination, and the light sensing module is arranged within the sleeve range of the heat shrink sleeve.

[0025] In some embodiments, the covering member is configured as a cover structure, and the cover structure is disposed on a side of the circuit module facing the thin shell member.

[0026] In some embodiments, the first circuit board is provided with a first cylindrical capacitor, and the connecting column of the first cylindrical capacitor is bent so that the angle between the extension direction of the first cylindrical capacitor and the first circuit board is less than 20°; the first circuit board is provided with a MOS tube, and the side surface of the first cylindrical capacitor is against the MOS tube, so that the MOS tube dissipates heat through the first cylindrical capacitor; the circuit module is in a long strip shape, the light-emitting part includes a plurality of conductive strips arranged in parallel, each conductive strip is provided with a plurality of light-emitting units, and the circuit module is arranged in parallel with the conductive strip.

[0027] In some embodiments, the shell and the thin shell are both circular in shape, the thin shell has a light emitting surface, the light emitted by the light emitting component is diffused outward through the light emitting surface, the light emitting surface is constructed as an outwardly convex arc surface, and the circuit module is arranged at a position corresponding to the center of the light emitting surface.

[0028] In some embodiments, the shell is rectangular in shape, the light-emitting element includes a plurality of conductive strips arranged in parallel, and a light-emitting unit arranged on each of the conductive strips; the first circuit board is in the shape of a long strip, and the first circuit board and the conductive strips are arranged in parallel; the radar detection module is arranged at the end of the first circuit board.

[0029] It should be understood that the above general description and the following detailed description are only exemplary and explanatory and cannot limit the present invention. The above utility model contents can be combined arbitrarily, and these and other purposes of the present utility model will be fully reflected through the following detailed description and drawings.

[0030] It should be understood that the above general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0032] Figure 1 It is a three-dimensional diagram of a human body detection device according to an embodiment of the utility model;

[0033] Figure 2This is an exploded view of a human body detection device according to an embodiment of the utility model;

[0034] Figure 3 It is a structural schematic diagram of a housing, a light-emitting component and a circuit module of an embodiment of the utility model;

[0035] Figure 4 This is a schematic diagram of the circuit module structure of an embodiment of the utility model;

[0036] Figure 5 This is a schematic diagram of the connection between the first circuit board, the second circuit board and the third circuit board in one embodiment of the utility model;

[0037] Figure 6 This is a schematic diagram of the connection between the third circuit board and the heat shrink tubing in one embodiment of the utility model;

[0038] Figure 7 It is a three-dimensional diagram of a human body detection device according to an embodiment of the utility model;

[0039] Figure 8 is a cross-sectional view of a human body detection device according to an embodiment of the utility model;

[0040] Fig. 9 This is a schematic diagram of the connection between the connector and the housing according to one embodiment of the utility model;

[0041] Fig.10 This is a schematic structural diagram of a connector according to an embodiment of the utility model;

[0042] Fig.11 This is a schematic diagram of the connector installation process of an embodiment of the utility model;

[0043] Fig.12 This is a schematic diagram of the connector installation process of an embodiment of the utility model;

[0044] Fig.13 This is a schematic structural diagram of a connector according to an embodiment of the utility model;

[0045] Fig.14 This is a schematic diagram of the connector installation process of an embodiment of the utility model;

[0046] Fig.15 This is a schematic diagram of the connection between the connector and the housing according to one embodiment of the utility model;

[0047] Fig.16 It is a three-dimensional diagram of a human body detection device according to an embodiment of the utility model;

[0048] Fig.17 This is a schematic diagram of the internal structure of a human body detection device according to an embodiment of the utility model;

[0049] Fig.18 yes Fig.17 Enlarged view of middle C;

[0050] Fig.19 This is a schematic diagram of the connection between the first circuit board, the driver chip and the heat sink in one embodiment of the utility model;

[0051] Fig. 20 It is a three-dimensional diagram of a human body detection device according to an embodiment of the utility model;

[0052] Fig.21 This is a schematic diagram of the connection between the housing and the connector of one embodiment of the utility model;

[0053] Fig. 22 It is a three-dimensional diagram of a human body detection device according to an embodiment of the utility model;

[0054] Fig.23 is a cross-sectional view of a human body detection device according to an embodiment of the utility model;

[0055] Fig.24 yes Fig.23 The enlarged view of the D part in FIG.

[0056] Fig.25 yes Fig.23 The enlarged view of part E in FIG.

[0057] Fig.26 It is an exploded view of a housing, a thin shell member and a profile frame of an embodiment of the utility model;

[0058] Fig. 27 This is a schematic diagram of the internal structure of a human body detection device according to an embodiment of the utility model;

[0059] Fig.28 This is a schematic diagram of the connection between the circuit module and the heat shrink tubing according to one embodiment of the utility model;

[0060] Fig.29 This is a schematic diagram of the internal structure of a human body detection device according to an embodiment of the utility model;

[0061] Fig.30 It is a luminance-voltage curve diagram of a light sensing module with and without a heat shrink tubing in one embodiment of the utility model.

[0062] Reference numerals:

[0063] 100, human body detection device; 200, external mounting surface; 210, first mounting hole; 220, second mounting hole; 230, third mounting hole; 240, fourth mounting hole; 1, connector; 11, connecting body; 111, abutting surface; 112, first wall; 1121, supporting protrusion; 113, wire passing portion; 114, first strip hole; 115, second strip hole; 116, third strip hole; 117, fourth strip hole; 12, rotational clamping position; 121, first clamping wall; 122, end wall; 123, limiting portion; 124, snap-fit ​​groove; 125, snap-fit ​​entrance; 126, limit depression; 13, sliding part; 14, waist-shaped hole; 2, housing; 21, snap-fit ​​structure; 211, second snap-fit ​​wall; 212, snap-fit ​​protrusion; 22, sinking groove; 23, slide groove; 231, stop corner; 24, wire through hole; 25, side transparent part; 26, wire pressing part; 27, light-transmitting hole; 281, receiving groove; 282, protrusion; 283, positioning convex block; 29, hot-melt riveting column; 3, circuit module; 31, radar detection module; 311, emitting surface; 32, First circuit board; 321, mounting through hole; 322, positioning through hole; 323, first welding hole; 324, second welding hole; 325, rivet hole; 3261, first inductor; 3262, second inductor; 3263, first cylindrical capacitor; 3264, MOS tube; 3265, driver chip; 3266, heat sink; 3267, driver inductor; 327, support foam; 33, second circuit board; 331, first row of pins; 332, LED indicator; 34, third circuit board; 341, second row of pins; 342, light sensor Module; 35. Wireless communication module; 36. Boost inductor; 37. Cover; 371. Heat shrink tubing; 372. Cover structure; 3721. Positioning groove; 4. Thin shell; 5. Light-emitting component; 51. Conductive strip; 52. Light-emitting unit; 53. Fixing frame; 6. Snap-fit ​​structure; 61. First clip; 611. First clip; 612. Reinforcement; 613. Support wall; 614. Connecting wall; 615. Operating hole; 62. Second clip; 621. Second clip; 622. Recessed portion; 7. Profile frame; 71. Limiting wall. DETAILED DESCRIPTION

[0064] In the description of the present invention, the terms "inside", "outside", "horizontal", "vertical", "up", "down", "top", "bottom", "left", "right", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0065] In the description of the utility model specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0066] In the description of the utility model specification, unless otherwise clearly specified and limited, the term "connection" and other terms should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0067] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0068] Currently, surface-mounted human presence sensors on the market are generally fixed directly to the mounting surface with screws. When the sensor body is large in size or heavy in weight, the difficulty of installation and removal will be greatly increased, causing inconvenience to installation and removal.

[0069] In order to solve the problem of inconvenience in installation and removal of existing surface-mounted human body sensors, according to the first aspect of the utility model, a human body detection device 100 is provided. Figure 1-Figure 21, the human body detection device 100 provided by the utility model will be specifically explained. The human body detection device 100 includes a connector 1, a shell 2 and a circuit module 3. The connector 1 is used to be installed on the external installation surface 200; the shell 2 can move relative to the connector 1 to be installed on the connector 1, and can move relative to the connector 1 to be removed from the connector 1; the circuit module 3 is arranged on the shell 2, and the circuit module 3 includes a radar detection module 31, and the radar detection module 31 can emit radar detection waves, and the radar detection waves are used to detect whether a human body exists. Among them, the circuit module 3 can be understood as the circuit part of the human body detection device 100, including a circuit board and electronic components. The external installation surface 200 can be understood as a surface that can be installed in the environment, which can be a wall surface, a door surface, a ceiling surface, a ceiling board surface, etc. The movement of the shell 2 relative to the connector 1 can be a linear motion, a rotational motion, etc. In some exemplary embodiments, the movement direction of the shell 2 can be parallel to the external installation surface 200 or perpendicular to the external installation surface 200. In one embodiment, the radar detection module 31 uses a 24 GHz radar module. The radar detection module 31 actively transmits radar detection waves to the outside and receives reflected radar waves, and determines whether there is a moving human body or object in the detection area based on the Doppler principle.

[0070] Compared with the traditional human presence sensor which is fixed to the external mounting surface 200 as a whole by screws, the shell 2 of this embodiment is installed on the external mounting surface 200 through the connector 1. Since the connector 1 is thinner and smaller, it is easier for the user to install the connector 1. The shell 2 is installed or removed from the connector 1 by movement, which makes the installation and disassembly of the shell 2 more convenient and is conducive to the frequent disassembly and installation of the shell 2.

[0071] In some embodiments, Figure 7-Figure 15 As shown, the housing 2 can be rotatably connected to the connector 1 and can be rotatably removed from the connector 1. The rotatable connection can be a rotatable snap-on connection or the housing 2 can be threaded and connected by threads. Figure 7-Figure 14As shown, the connector 1 includes a circular connection body 11 and a plurality of rotational clamping positions 12 distributed along the circumferential direction of the connection body 11, and the rotational clamping positions 12 extend along the circumferential direction of the connection body 11; the housing 2 is provided with a clamping structure 21, and the clamping structure 21 is rotationally clamped to the rotational clamping position 12, so that the installation and removal of the housing 2 and the connector 1 are faster and more convenient, and the use of the rotational clamping connection method makes the thickness of the connector 1 thinner, so that the radar detection module 31 can be closer to the external installation surface 200, and the detection range is wider. Among them, the rotational clamping can be understood as the clamping structure 21 can be clamped and matched with the rotational clamping position 12 through rotational movement, and in addition, the clamping structure 21 can be separated from the rotational clamping position 12 through rotational movement. The rotational clamping position 12 is provided with a limiting portion 123, and the limiting portion 123 is used to limit the clamping structure 21 from being separated from the rotational clamping position 12, so that the connection between the housing 2 and the connector 1 is more stable. The circular shape can be understood as a disc, a ring or other similar circular shapes. The rotating engaging position 12 can be understood as a structure adapted to the engaging structure 21, such as an engaging hole, an engaging groove, an engaging platform, etc. Figure 1-Figure 3 As shown, the shell 2 is an inverted bowl-like structure, and the thin shell 4 is an arc-shaped shell 2 structure. Figure 8 As shown, the thin shell member 4 is covered on the opening side of the housing 2 to form a pancake-like structure with the housing 2 .

[0072] In one embodiment, if Figure 7-10As shown, the connecting body 11 has an abutting surface 111, and the abutting surface 111 is used to abut against the shell 2. The abutting makes the angle relationship between the shell 2 and the connector 1 more accurate, so as to ensure that the detection direction of the radar detection module 31 is more accurate. The connecting body 11 is evenly distributed with three first clamping walls 121 along the circumferential direction. The first clamping walls 121 extend along the circumferential direction of the connecting body 11, and the first clamping walls 121 are used to clamp against the shell 2. The first clamping wall 121 is configured as the bottom wall of the rotation clamping position 12, and the abutting surface 111 is the lower surface of the first clamping wall 121. The shell 2 is provided with a sinking groove 22 at a position corresponding to the abutting surface 111, and the connector 1 sinks into the sinking groove 22, thereby reducing the height of the connector 1 protruding from the shell 2, so that the gap between the shell 2 and the external mounting surface 200 is smaller. The clamping structure 21 of the shell 2 includes a second clamping wall 211 corresponding to each of the first clamping walls 121, and the second clamping wall 211 is protruded inwardly from the side wall of the sunken groove 22; the bottom surface of the sunken groove 22 abuts against the abutting surface 111, and a clamping gap is provided between the bottom surface of the sunken groove 22 and the second clamping wall 211. When the shell 2 is rotated and clamped to the connector 1, the first clamping wall 121 is clamped in the clamping gap, the bottom surface of the sunken groove 22 abuts against the abutting surface 111, and the lower surface of the second clamping wall 211 abuts against the upper surface of the first clamping wall 121; wherein the upper surface of the first clamping wall 121 is an inclined surface, and during the rotation of the shell 2, the abutting force between the second clamping wall 211 and the first clamping wall 121 increases with the increase of the rotation angle, thereby making the connection between the first clamping wall 121 and the second clamping wall 211 more stable.

[0073] Further, the connecting body 11 includes a first wall 112 parallel to the abutting surface 111, the first wall 112 is arranged above the first clamping wall 121, and the rotation clamping position 12 is formed between the first clamping wall 121 and the first wall 112; an end wall 122 is arranged at one end of the rotation clamping position 12, the end wall 122 connects the first wall 112 and the first clamping wall 121, and the end wall 122 is used to limit the rotational movement limit position of the second clamping wall 211; the first clamping wall 121 is provided with a limiting portion 123 on one side facing the abutting surface 111, and the limiting portion 123 is used to limit the clamping structure 21 from being separated from the rotation clamping position 12. In this embodiment, the limiting portion 123 is configured as a convex ridge, and the second clamping wall 211 is limited between the limiting portion 123 and the end wall 122, so that the connection between the housing 2 and the connector 1 is more stable.

[0074] Furthermore, if Fig. 9As shown, the connector 1 is fixedly connected to the external mounting surface 200 by a plurality of screws, the first wall 112 is constructed as an annular plate structure, the center of which is concentric with the center of the shell 2, and the first wall 112 is provided with a plurality of support protrusions 1121 protruding toward the external mounting surface 200, and the support protrusions 1121 are evenly distributed along the circumferential direction of the first wall 112. When the connector 1 is fixedly connected to the external mounting surface 200, the support protrusions 1121 abut against the external mounting surface 200 to prevent the first wall 112 from deforming under the action of the screw tightening force, thereby ensuring that the first wall 112 is parallel to the external mounting surface 200, thereby preventing the position of the rotational locking position 12 from being affected by the screw tightening force.

[0075] In some embodiments, Fig.15 As shown, a snap-in groove 124 and a snap-in entrance 125 are provided on one side of the connecting body 11 facing the shell 2. The snap-in groove 124 extends in an arc shape along the circumferential direction of the connecting body 11. The snap-in entrance 125 is arranged at the end of the snap-in groove 124. The width of the snap-in entrance 125 is greater than the width of the snap-in groove 124. The shell 2 is provided with a snap-in structure 21. The snap-in structure 21 is rotated by the snap-in entrance 125 and snapped into the snap-in groove 124. Furthermore, the number of the snap-in grooves 124 is three, and the three snap-in grooves 124 are evenly distributed along the circumferential direction of the connecting body 11; the snap-in groove 124 is constructed as an arc-shaped strip hole, and the snap-in entrance 125 is constructed as a circular hole. The snap-in structure 21 includes three snap-in protrusions 212, and the positions of the snap-in protrusions 212 correspond to the snap-in grooves 124. The snap-in protrusions 212 include a connecting column extending upward from the shell 2 and a snap-in cap arranged at the upper end of the connecting column. The width of the connecting column is slightly smaller than the width of the snap-in groove 124, so that the connecting column can slide in the snap-in groove 124; the diameter of the snap-in cap is larger than the width of the snap-in groove 124 and smaller than the width of the snap-in entrance 125. The snap-in cap is upwardly snapped into the snap-in entrance 125, and then rotated to snap into the snap-in groove 124. Since the diameter of the snap-in cap is larger than the width of the snap-in groove 124, the snap-in cap cannot be separated from the snap-in groove 124 downward. A limiting recess 126 is provided at one end of the snap-in slot 124 away from the snap-in entrance 125. The limiting recess 126 is provided on the upper surface of the connector 1 and its shape is adapted to the snap-in cap. When the snap-in cap moves to the position of the limiting recess 126, the snap-in cap sinks into the limiting recess 126, so that the snap-in cap is not easy to separate from the limiting recess 126, so as to increase the connection stability between the snap-in protrusion 212 and the snap-in slot 124.

[0076] In some embodiments, Fig. 20 and Fig.21The housing 2 can be slidably connected to the connector 1 and can be slidably removed from the connector 1. The sliding connection can be a matching connection between the slide groove 23 and the slide rail or other sliding connection methods. The advantage of using a sliding connection is that the housing 2 will not rotate in the horizontal direction during the sliding process. This connection method is more suitable for square housings and can ensure that the installation direction of the square housing is horizontal and vertical. In one embodiment, Figure 20-21 As shown, the connector 1 includes a connecting body 11 and sliding parts 13 respectively arranged on both sides of the connecting body 11, and the housing 2 is provided with a slide groove 23 adapted to the sliding part 13, and the sliding part 13 slides into the slide groove 23 so that the housing 2 is connected to the connector 1. The sliding part 13 can be a structure such as a slide rail, a slide bar, a buckle, etc. In one embodiment, the sliding part 13 is configured as a slide bar, and the extension direction of the slide bar is the same as that of the slide groove 23. The connecting body 11 is a rectangular plate-like structure, and the slide bar protrudes horizontally and is arranged on both sides of the connecting body 11. There are two slide grooves 23, and the two slide grooves 23 are respectively located at the corresponding positions of the two slide bars, and the opening directions of the two slide grooves 23 are arranged oppositely, and the thickness of the slide groove 23 is adapted to the slide bar, and the slide bar slides horizontally into the slide groove 23 so that the housing 2 cannot be separated from the connector 1 downward. One end of the slide slot 23 is open, and the other end is provided with a stop corner 231. The slide bar slides into the open end of the slide slot 23 and stops when it slides to the stop corner 231. Fig.21 As shown, three waist-shaped holes 14 are respectively opened on the left and right sides of the connector 1 , and the three waist-shaped holes 14 on the same side are arranged side by side. The connector 1 is externally mounted and fixed through the waist-shaped holes 14 .

[0077] In this embodiment, if Fig.16 and Fig.17 As shown, the shell 2 is a rectangular cover-like structure with an open lower side, and the thin shell 4 is a rectangular shell 2 slightly convex downward, and the thin shell 4 is arranged on the open side of the shell 2. Fig. 20 As shown, a side transparent member 25 is provided on the side of the housing 2 away from the thin shell member 4. The side transparent member 25 is light-transmissive and has a rectangular ring shape and is inclined to the upper surface of the housing 2. The side transparent member 25 transmits the light in the accommodating cavity to illuminate the external mounting surface 200 around the human body detection device 100. Fig.17 As shown, the housing 2 is provided with a plurality of light-transmitting holes 27 at positions corresponding to the side transparent member 25, and the light-transmitting holes 27 are arranged around the housing 2. Furthermore, the side transparent member 25 and the thin shell member 4 are respectively connected to the housing 2 by buckles.

[0078] In some embodiments, Fig. 9 Fig.13 , Fig.15 and Fig.21 As shown, the connection body 11 is provided with a wire passing portion 113, and the wire passing portion 113 penetrates the connection body 11 for passing the wire, so as to facilitate wiring, and the wire can be hidden inside the connector 1. Further, the housing 2 is provided with a wire through hole 24, and the wire passes through the wire passing portion 113 and the housing 2 to be connected to the circuit module 3. Further, as Figure 7 , Fig. 9 and Fig.15 As shown, a rubber sealing ring is clamped on the inner side of the wire through hole 24 of the housing 2 , and the rubber sealing ring is sleeved on the wire to seal the wire and the wire through hole 24 .

[0079] In some embodiments, the connector 1 is arranged on the upper side of the shell 2 so that the human body detection device 100 is suitable for ceiling installation; the ratio of the thickness to the width of the connector 1 is less than 1 / 5. When the shell 2 is installed on the connector 1 and the connector 1 is installed on the external installation surface 200, the connector 1 is hidden between the shell 2 and the external installation surface 200, so that the distance between the shell 2 and the external installation surface 200 is smaller, the installation position is more flexible, and the detection direction of the radar detection module 31 can be ensured to be perpendicular to the external installation surface 200, and the user can more easily control the detection direction; at the same time, the ceiling-mounted appearance of the human body detection device 100 can be achieved. Among them, the connector 1 being hidden does not mean that the connector 1 is completely covered, but it should be understood that when the human body detection device 100 is installed on the ceiling or ceiling board, the user cannot see the connector 1 when standing on the ground. The ratio of the thickness to the width of the connector 1 being less than 1 / 5 can not only make the distance between the housing 2 and the external mounting surface 200 smaller, but also facilitate the connector 1 to be hidden between the housing 2 and the external mounting surface 200. Fig. 9 As shown, the upper surface of the housing 2 is provided with the sinking groove 22, and part of the connector 1 sinks into the sinking groove 22, thereby reducing the height of the connector 1 protruding from the housing 2, so that the gap between the housing 2 and the external mounting surface 200 is smaller. Figure 8 As shown, the gap between the shell 2 and the external mounting surface 200 is set to L1, the horizontal width of the shell 2 is set to L2, and the horizontal width of the connector 1 is set to L4 (not marked in the figure). In this embodiment, the L1 is controlled by controlling the thickness of the connector 1 and the depth of the sinking depression, so that L1 / L2<1 / 50, and L4 / L2<2 / 3, thereby ensuring the concealment of the connector 1 to achieve the ceiling-mounted appearance of the human body detection device 100.

[0080] In some embodiments, Figure 1-Figure 4 As shown, the shell 2 is open toward one end away from the connector 1, and a thin shell 4 is provided at the open end of the shell 2. The thin shell 4 and the shell 2 form a receiving cavity, and the circuit module 3 is received inside the receiving cavity. The radar detection module 31 has an emitting surface 311, and the emitting surface 311 is arranged toward the thin shell 4. The emitting surface 311 can emit the radar detection wave, and the radar detection wave passes through the thin shell 4 and is emitted to the outside. Among them, the emitting surface 311 is arranged toward the thin shell 4, that is, the emitting surface 311 is arranged toward the direction away from the connector 1. When the connector 1 is installed on the external mounting surface 200, it can ensure that the detection direction of the radar detection module 31 is perpendicular to the external mounting surface 200, so that the detection direction is easier to control. The thin shell 4 is thin, which is conducive to the passage of the radar detection wave, thereby reducing the loss of the radar detection wave.

[0081] In some embodiments, Figure 5 , Figure 4 and Figure 8 As shown, the circuit module 3 includes a first circuit board 32, a second circuit board 33, a third circuit board 34 and a wireless communication module 35. The first circuit board 32 is arranged on the housing 2, and the first circuit board 32 is used to set a strong current circuit and is electrically connected to the light-emitting element; the second circuit board 33 is mounted on the first circuit board 32 through a first row of pins 331; the third circuit board 34 is mounted on the second circuit board 33 through a second row of pins 341, and the radar detection module 31 is arranged on the third circuit board 34; so that the height of the radar detection module 31 is raised, and the emitting surface 311 can be higher than the electronic components on the first circuit board 32, so as to avoid the emitting surface 311 emitting The radar detection wave emitted is reflected by the electronic components and causes interference; the wireless communication module 35 is arranged on the second circuit board 33 and is located between the third circuit board 34 and the second circuit board 33. The wireless communication module 35 and the radar detection module 31 are stacked up and down, which can improve the space utilization, reduce the area of ​​the first circuit board 32, and make the second circuit board 33, the third circuit board 34, the radar detection module 31 and the wireless communication module 35 form a universal module, which can be directly used in other models of human body detection devices 100, and the pin connection belongs to a standardized connection method, which can facilitate the universal module to be welded or inserted into the circuit board of other devices. Further, the first pin row 331 is connected to the first end of the second circuit board 33, and the second pin row 341 is connected to the end of the second circuit board 33 away from the first end.

[0082] Furthermore, if Figure 5As shown, the first circuit board 32 is pasted with a supporting foam 327, and the supporting foam 327 abuts against a side of the second circuit board 33 facing the first circuit board 32, and the supporting foam 327 is arranged at an end of the second circuit board 33 away from the first row of pins 331, for supporting the second circuit board 33 so that the second circuit board 33 remains in a horizontal state.

[0083] In another embodiment, if Fig.25 As shown, the wireless communication module 35 can also be directly set on the first circuit board 32, the third circuit board 34 is directly mounted on the first circuit board 32 through the second row of pins 341, the radar detection module 31 is set on the third circuit board 34, and the wireless communication module 35 is located between the first circuit board 32 and the third circuit board 34.

[0084] In some embodiments, Figure 1-Figure 7 as well as Figure 16-Figure 21 As shown, the connector 1 is arranged on the upper side of the shell 2 so that the shell 2 can be top-mounted; the thin shell member 4 is made of light-transmitting material, and a light-emitting member 5 is arranged inside the accommodating cavity, and the light emitted by the light-emitting member 5 is diffused outward through the thin shell member 4; the light-emitting member 5 is electrically connected to the radar detection module 31, and can switch the working state in response to the detection result of the radar detection module 31. Among them, the light-emitting member 5 is used for lighting. In one embodiment, the light-emitting member 5 includes a plurality of light-emitting units 52, and the light-emitting units 52 are preferably LED lamp beads. The thin shell member 4 is made of light-transmitting material and has a uniform light effect, so that the light emitted to the outside is more uniform and the lighting effect is better. In one embodiment, the thin shell member 4 is integrally formed with acrylic material. The switching working state can be switching the switch state or adjusting the brightness, color temperature, etc.

[0085] In one embodiment, if Figure 2 and Figure 3 As shown, in order to adapt to the circular housing 2, the light-emitting member 5 includes four conductive strips 51, and a plurality of light-emitting units 52 are arranged on each conductive strip 51. The four conductive strips 51 are connected end to end and enclosed to form a quadrilateral. The circuit module 3 is surrounded by the quadrilateral at the center. A triangular fixing frame 53 is provided at the connection position between each conductive strip 51. The fixing frame 53 is used to fix the conductive strip 51 to the housing 2 and maintain the electrical connection state between the conductive strips 51. The conductive strip 51 is connected to the circuit module 3 through a wire. A wire pressing member 26 is provided between the conductive strip 51 and the circuit module 3. The wire pressing member 26 fixes the wire to the housing 2.

[0086] In another embodiment, if Fig.17As shown, the housing 2 is adapted to the rectangular shape, and the light-emitting member 5 includes 8 conductive strips 51 arranged in parallel, each conductive strip 51 is fixed to the housing 2 by a hot-melt riveting column 29, and the hot-melt riveting column 29 is integrally formed in the housing 2. Among them, the arrangement direction of the conductive strips 51 is the long side direction of the rectangular housing 2, and a plurality of light-emitting units 52 are arranged on each conductive strip 51. The first circuit board 32 is arranged between the two conductive strips 51 in the middle, and the first circuit board 32 is in the shape of a long strip. The first circuit board 32 and the conductive strips 51 are arranged in parallel to reduce the light blocking of the circuit module 3. The conductive strips 51 are connected by wires, and the two conductive strips 51 adjacent to the first circuit board 32 are respectively connected to the first circuit board 32 by wires.

[0087] In some embodiments, Figure 7 As shown, a side transparent member 25 is provided on the side of the housing 2 away from the thin shell member 4. The side transparent member 25 is light-transmissive and has a ring shape and is inclined to the upper surface of the housing 2. The side transparent member 25 transmits the light in the accommodating cavity to illuminate the external mounting surface 200 around the human body detection device 100. Figure 3 As shown, the housing 2 is provided with a plurality of light-transmitting holes 27 at positions corresponding to the side transparent member 25, and the light-transmitting holes 27 are arranged around the housing 2. Furthermore, the side transparent member 25 and the thin shell member 4 are respectively connected to the housing 2 by buckles.

[0088] Furthermore, if Figure 4 and Fig.18 As shown, the third circuit board 34 is provided with a light sensing module 342, and the light sensing module 342 can sense light illumination. The ambient light outside the human body detection device 100 is irradiated to the light sensing module 342 through the thin shell 4, so that the light sensing module 342 senses the ambient light illumination, so that the light-emitting component 5 can switch the working state according to the ambient light illumination. In one embodiment, the light sensing module 342 is configured as a photoresistor. Furthermore, the second circuit board 33 is provided with two LED indicator lights 332, and the LED indicator lights 332 are used to indicate the working state of the human body detection device 100. The light emitted by the LED indicator lights 332 is displayed to the outside through the thin shell 4.

[0089] Furthermore, if Figure 3-Figure 5As shown, the first circuit board 32 is provided with two mounting through holes 321, and positioning through holes 322 are respectively provided near each mounting through hole 321, the housing 2 is provided with a threaded connection hole at a position corresponding to each mounting through hole 321, and a positioning column is provided at a position corresponding to each positioning through hole 322, the positioning column is inserted into the positioning through hole 322 to position the first circuit board 32, and the mounting through hole 321 is fixedly connected to the threaded connection hole by a screw. The first circuit board 32 is provided with a power module and a drive module, the power module is used to access the mains circuit and convert the 220V industrial frequency AC power into DC power for use by subsequent circuits; the drive module is used to drive the light-emitting element 5 to switch the working state. The first circuit board 32 is provided with two first welding holes 323 for connecting household AC power, and three second welding holes 324 for connecting the light-emitting element 5, wherein the first circuit board 32 is square, and the first welding holes 323 and the second welding holes 324 are respectively located at the diagonal positions of the first circuit board 32.

[0090] Existing ceiling-mounted human body detection devices with lighting functions generally set the radar detection module on the outside of the shell. The patent with application number 202222985729.1 discloses a microwave sensor and its shell, wherein the microwave sensor is connected to the upper surface of the lamp board through a snap buckle, and lamp beads are arranged on the lower surface of the lamp board. In order to prevent the microwaves emitted by the microwave sensor from being blocked by the lamp board, the lamp board is provided with a mounting hole, and the detection protrusion of the microwave sensor passes through the mounting hole and protrudes from the lower surface of the lamp board. The advantages of this arrangement are that the detection protrusion occupies a smaller area of ​​the lamp board, the main body of the microwave sensor is arranged on the lamp board to facilitate the separate wiring of the microwave sensor, and the microwave sensor is connected to the lamp board for easy installation and disassembly. However, the microwave sensor occupies the space at the top of the lamp board, resulting in a large distance between the lamp board and the ceiling board, making it difficult to achieve the effect of ceiling installation, and because the lamp board is provided with a mounting hole for the detection protrusion of the microwave sensor to pass through, the sealing of the lamp board is poor.

[0091] In order to prevent the radar detection module 31 from occupying the space above the light board and to improve the sealing of the light board, according to the second aspect of the utility model, as Figure 1-Figure 29As shown, a human body detection device 100 is provided, including a shell 2, a light-emitting component 5, a thin shell component 4 and a circuit module 3, wherein the shell 2 is used for external installation, and the thin shell component 4 is covered on the shell 2 to form a receiving cavity with the shell 2; the light-emitting component 5 is arranged inside the receiving cavity, and the light emitted by the light-emitting component 5 is diffused outward through the thin shell component 4; the circuit module 3 is arranged inside the receiving cavity, and the circuit module 3 includes a first circuit board 32 and a radar detection module 31 electrically connected to the first circuit board 32, the light-emitting component 5 is electrically connected to the first circuit board 32, and the radar detection module 31 has an emitting surface 311, and the emitting surface 311 is arranged toward the thin shell component 4, and the emitting surface 311 can emit radar detection waves, and the radar detection waves are emitted outward through the thin shell component 4 to detect whether there is a human body in an area, and the light-emitting component 5 switches the working state in response to the detection result of the radar detection module 31. The technical details of the shell 2, the thin shell 4, the light-emitting element 5, the circuit module 3 and the radar detection module 31 are described in detail above and will not be repeated here. The utility model integrates the radar detection module 31 inside the accommodating cavity, avoiding occupying the space above the shell 2, making the distance between the shell 2 and the external mounting surface 200 smaller, so that when the human body detection device 100 is installed on the ceiling, the effect of ceiling installation can be achieved; in addition, since the radar detection module 31 is arranged inside the shell 2, there are no extra openings on the upper surface of the shell 2 except the wire hole, and the sealing is better.

[0092] Furthermore, since the circuit module 3 is integrated inside the shell 2, the light-emitting component 5 can be directly connected to the circuit module 3. The circuit module 3 is integrated with a driving module to enable the circuit module 3 to directly drive the light-emitting component 5 to work based on the electrical connection, thereby improving the response speed; the circuit module 3 is integrated with a power module. When wiring, the wiring can be completed by connecting the circuit module 3 to household AC power without the need to connect an additional power supply or driver, which is convenient and quick.

[0093] in, Figure 1-Figure 15 The illustrated embodiment provides a circular human body detection device 100 that can be connected to an external mounting surface 200 such as a ceiling panel or a wall through the connector 1; Figure 16-Figure 21 The illustrated embodiment provides a rectangular human body detection device 100, which is installed in the same manner as a circular human body detection device 100; Figure 22-Figure 29 The illustrated embodiment provides a rectangular flat-plate human body detection device 100 that can be snap-fitted and installed on a keel frame in the same manner as an aluminum gusset plate.

[0094] Furthermore, the light emitted by the light-emitting component 5 is diffused outward after being homogenized by the thin shell 4. Since the circuit module 3 is arranged inside the housing 2 and the circuit module 3 is relatively large, it will block and reflect the light, resulting in poor homogenization effect of the thin shell 4. The R&D personnel found through prototype testing that the thin shell 4 will show a shadow when it is directly opposite to the circuit module 3. In order to solve the shadow caused by the circuit module 3, the R&D personnel made the following improvements:

[0095] First, if Figure 8 As shown, the radar detection module 31 is directly or indirectly mounted on the first circuit board 32, and the vertical distance L3 between the emitting surface 311 and the thin shell 4 is greater than 18 mm, wherein the vertical distance can be understood as the distance between the emitting surface 311 and the thin shell 4 in the direction perpendicular to the emitting surface 311, and the L3 is Figure 8 In this embodiment, the vertical distance between the emitting surface 311 and the thin shell 4 is increased to prevent the emitting surface 311 from projecting a shadow on the thin shell 4. In addition, in order to prevent the radar detection wave emitted by the radar detection module 31 from being interfered by electronic components, the radar detection module 31 is mounted on the first circuit board 32 in this embodiment, and the distance between the emitting surface 311 and the first circuit board 32 is ensured to be greater than 5 mm, so as to achieve a balance between detection performance and shadow elimination. Further, as Figure 6 As shown, the radar detection module 31 is arranged on the third circuit board 34, and the third circuit board 34 is provided with a white heat shrink tube 371, so as to reduce the shadow by reflecting light through the heat shrink tube 371. The third circuit board 34 is mounted on the second circuit board 33 through the second row of pins 341, and the second circuit board 33 is mounted on the first circuit board 32 through the first row of pins 331. The technical details of the third circuit board 34, the second circuit board 33 and the first circuit board 32 are described in detail above and will not be repeated here.

[0096] To further reduce the shadows produced by the circuit module 3, as Fig.17 As shown, the housing 2 is provided with a recessed receiving groove 281 on one side facing the thin shell 4, and the first circuit board 32 is received in the receiving groove 281. This reduces the height of the circuit module 3 protruding from the housing 2 and reduces the shadow of the circuit module 3 on the thin shell 4. Fig. 20 and Fig.21As shown, a protrusion 282 is provided on the top of the housing 2 at a position corresponding to the receiving groove 281, and the shape of the protrusion 282 matches the receiving groove 281; the height of the protrusion 282 is lower than the thickness of the connector 1 to avoid the protrusion 282 affecting the installation of the connector 1. The technical details of the connector 1 are described in detail above and will not be repeated here. Furthermore, a wire through hole 24 is provided on the side of the protrusion 282, and the wire through hole 24 passes through the housing 2 for the wire to pass through.

[0097] Furthermore, if Fig.17 , Fig.28 and Figure 6 As shown, the human body detection device 100 further includes a covering 37, and the circuit module 3 is at least partially wrapped or covered by the covering 37 to prevent the electronic components from projecting shadows or mixed colors on the thin shell 4. The covering 37 is preferably white so that it can reflect white light, thereby reducing the shadow. Among them, the at least part of the part can be understood as a part of the part or the whole part.

[0098] Furthermore, if Fig.28 and Figure 6 As shown, the covering member 37 is constructed as a white heat shrinkable tube 371, and at least part of the circuit module 3 is covered by the heat shrinkable tube 371 to eliminate shadows by reflecting light through the white heat shrinkable tube 371. Fig.28 In the embodiment shown, the circuit module 3 is in the shape of a long strip, and almost the entire circuit module 3 is covered with a heat shrink tube 371. Figure 6 In the embodiment shown, only the third circuit board 34 is covered by the heat shrink tube 371, and the radar detection module 31 is arranged within the covering range of the heat shrink tube 371. Fig. 27 As shown, the size of the housing 2 is about 300mm×300mm, and the light-emitting member 5 includes four conductive strips 51 arranged in parallel, and each conductive strip 51 is provided with a plurality of light-emitting units 52, and the light-emitting units 52 are preferably LED lamp beads. The conductive strips 51 are fixed to the housing 2 by riveting through hot-melt riveting columns 29, specifically, as shown in FIG. Fig. 27 and Fig.25As shown, the hot melt riveting column 29 is integrally formed with the housing 2, and the conductive strip 51 is provided with a riveting hole 325 at a position corresponding to the hot melt riveting column 29. After the hot melt riveting column 29 passes through the riveting hole 325, the end of the hot melt riveting column 29 is flattened after being heated, thereby riveting and fixing the conductive strip 51. Among them, the circuit module 3 is arranged between the two conductive strips 51 in the middle, and the circuit module 3 is in the shape of a long strip. The circuit module 3 and the conductive strip 51 are arranged in parallel to reduce the light blocking by the circuit module 3. The conductive strips 51 are connected to each other by wires (not shown in the figure), and the two conductive strips 51 adjacent to the first circuit board 32 are respectively connected to the first circuit board 32 by wires (not shown in the figure).

[0099] In another embodiment, if Fig.29 As shown, the size of the shell 2 is about 300mm×600mm, and the light-emitting element 5 includes four conductive strips 51 arranged in parallel, and each conductive strip 51 is provided with a plurality of light-emitting units 52, and the light-emitting units 52 are preferably LED lamp beads. Among them, the extension direction of the conductive strip 51 is parallel to the long side direction of the shell 2, and the arrangement direction is parallel to the short side direction of the shell 2. The circuit module 3 is arranged between the two conductive strips 51 in the middle. The circuit module 3 is in the shape of a long strip, and the circuit module 3 and the conductive strip 51 are arranged in parallel to reduce the shielding of the circuit module 3 to the light. The length of the circuit module 3 is about half of the conductive strip 51. The radar detection module 31 is arranged at the end of the circuit module 3, and the radar detection module 31 is located in the middle position of the shell 2. The circuit module 3 and the radar detection module 3 in this embodiment are arranged in parallel. Fig. 27 The circuit modules 3 in the embodiments are the same.

[0100] In some embodiments, Fig. 27 and Fig.29 As shown, the light-emitting component 5 includes four conductive strips 51 arranged in parallel, the circuit module 3 and the conductive strips 51 are arranged in parallel, and the circuit module 3 is arranged between two middle conductive strips 51, wherein the spacing between two conductive strips 51 adjacent to the circuit module 3 is greater than the spacing between two conductive strips away from the circuit module 3, so that there is a sufficient distance between the circuit module 3 and the conductive strips 51 to reduce the shielding of light by the circuit module 3, thereby avoiding the circuit module 3 from casting a shadow on the thin shell 4.

[0101] In some embodiments, Fig.28As shown, the first circuit board 32 has riveting holes 325 at both ends and in the middle, and the riveting holes 325 are riveted to the hot melt riveting posts 29. The heat shrinkable sleeve 371 has two sections, which are respectively sleeved on the left and right sections of the circuit module 3, so that the riveting hole 325 in the middle is exposed to the outside for hot melt riveting. After the heat shrinkable sleeve 371 is sleeved on the circuit module 3, the heat shrinkable sleeve 371 is heated so that the heat shrinkable sleeve 371 shrinks and is tightly adsorbed on the circuit module 3 (such as Fig.28 ). Figure 6 In the illustrated embodiment, after the heat shrink tube 371 is sleeved on the third circuit board 34 , the heat shrink tube 371 is heated so that the heat shrink tube 371 shrinks and is tightly adsorbed on the third circuit board 34 .

[0102] like Fig.28 As shown in the first figure, the first circuit board 32 is provided with a first inductor 3261. Since the first inductor 3261 is large in size, it is easy to block light, resulting in a shadow of the first inductor 3261 on the thin shell 4, and the heat shrink tube 371 is also difficult to fit into the first inductor 3261, further deepening the shadow. In order to reduce the shadow caused by the first inductor 3261, as shown in FIG. Fig.28 As shown in the second figure, the first inductor 3261 is split into two second inductors 3262 connected in series, the two second inductors 3262 are arranged along the long side direction of the first circuit board 32, and the two second inductors 3262 are arranged in the middle of the short side direction of the first circuit board 32; at the same time, the heat shrink sleeve 371 is set inside the second inductor 3262 to reduce the shadow of the second inductor 3262 on the thin shell 4. Further, one of the rivet holes 325 on the first circuit board 32 is set between the two second inductors 3262.

[0103] Furthermore, if Fig.28 As shown, two first welding holes 323 for connecting to household AC power are provided at one end of the first circuit board 32 away from the radar detection module 31, and a second welding hole 324 for connecting to the light-emitting component 5 is provided on both sides of the first cylindrical capacitor 3263 of the first circuit board 32. When the heat shrink tube 371 is sleeved on the circuit module 3, the wire connected to the second welding hole 324 passes through the end of the heat shrink tube 371.

[0104] In some embodiments, Fig.28 and Figure 6 As shown, the circuit module 3 includes a light sensing module 342, which can sense light illumination. The light sensing module 342 is arranged within the sleeve range of the heat shrink sleeve 371, so that the light illumination received by the light sensing module 342 is weakened, thereby increasing the light illumination range detected by the light sensing module 342. Specifically, as Fig.30 As shown, it is a curve chart of the voltage of the light sensing module 342 following the change of light illumination measured by the R&D personnel in the laboratory. It can be seen from the figure that when the light sensing module 342 is not provided with the heat shrink tube 371, the light sensing module 342 is more sensitive to light within the light illumination range of 400LUX, and the voltage-light illumination curve within this range is an inclined straight line, and the light sensing module 342 can detect the light illumination more accurately; when the light illumination is greater than 400LUX, the sensitivity of the light sensing module 342 decreases, and the voltage-light illumination curve is an approximately horizontal straight line, and at this time, it is difficult for the light sensing module 342 to accurately detect the light illumination. When the light sensing module 342 is provided with the heat shrink tube 371, the light sensing module 342 is more sensitive to light within the 3300LUX illumination range, and the voltage-illuminance curve within this range is an inclined straight line. The light sensing module 342 can detect the illumination more accurately, that is, the light sensing module 342 is provided within the installation range of the heat shrink tube 371, which can effectively increase the illumination range detected by the light sensing module 342.

[0105] In some embodiments, Fig.25 As shown, the first circuit board 32 is provided with a first cylindrical capacitor 3263, and the conductive column of the first cylindrical capacitor 3263 is bent so that the angle between the extension direction of the first cylindrical capacitor 3263 and the first circuit board 32 is less than 20°, that is, the first cylindrical capacitor 3263 is arranged flat to reduce the height of the first cylindrical capacitor 3263, avoid the first cylindrical capacitor 3263 from projecting a shadow on the thin shell 4, and at the same time, avoid the first cylindrical capacitor 3263 from interfering with the radar detection module 31. In a preferred embodiment, the extension direction of the first cylindrical capacitor 3263 is parallel to the first circuit board 32.

[0106] Furthermore, if Fig.23 As shown, a de-ripple circuit and an AC-DC constant current conversion circuit are provided on the first circuit board 32. The de-ripple circuit includes a MOS tube 3264. The de-ripple circuit achieves the purpose of de-ripple by frequently opening and closing the MOS tube 3264, but the MOS tube 3264 generates a large amount of heat during the frequent opening and closing process. In order to improve the heat dissipation rate of the MOS tube 3264, the AC-DC constant current conversion circuit includes a cylindrical capacitor 3263 with a larger volume. The side of the first cylindrical capacitor 3263 is against the MOS tube 3264, so that the MOS tube 3264 dissipates heat through the first cylindrical capacitor 3263. Further, a thermal conductive silicone grease is provided between the MOS tube 3264 and the first cylindrical capacitor 3263 to improve the thermal conductivity. Further, the first cylindrical capacitor 3263 is an electrolytic capacitor.

[0107] Furthermore, if Fig. 27As shown, the first circuit board 32 is in the shape of an elongated strip, the extension direction of the first circuit board 32 is parallel to the direction of the conductive strip 51 of the light-emitting component 5, the extension direction of the first cylindrical capacitor 3263 is the same as the extension direction of the first circuit board 32, and the first cylindrical capacitor 3263 is arranged in the middle position of the first circuit board 32 in the width direction to further avoid the first cylindrical capacitor 3263 from generating a shadow.

[0108] In some embodiments, Fig.17 As shown, the covering member 37 is constructed as a cover structure 372, and the cover structure 372 is covered on the side of the circuit module 3 facing the thin shell member 4. The circuit module 3 is covered by the cover structure 372 to prevent the electronic components from projecting shadows or variegated colors on the thin shell member 4. The cover structure 372 can be understood as a structure including a top wall and surrounding side walls and an open bottom. In this embodiment, the covering member 37 is constructed as a long strip-shaped cover structure 372. The two ends of the cover structure 372 are fixedly connected to the housing 2 by screws, and positioning grooves 3721 are provided on both sides of the cover structure 372. The housing 2 is provided with positioning protrusions 283 at the corresponding positions of the positioning grooves 3721. The positioning protrusions 283 are embedded in the positioning grooves 3721 to position the cover structure 372 and strengthen the side wall strength of the cover structure 372. Two notches are provided at one end of the cover structure 372, and the wires of the light-emitting member 5 pass through the notches into the interior of the cover structure 372. The cover structure 372 is preferably white to facilitate light reflection. In one embodiment, the cover structure 372 is injection molded with a white translucent material because Fig.18 As shown, the third circuit board 34 is provided with a light sensing module 342, and the light sensing module 342 is used to sense the ambient light illumination. The ambient light passes through the thin shell 4 and the cover structure 372 to irradiate the light sensing module 342. The second circuit board 33 is provided with an LED indicator light 332. The light emitted by the LED indicator light 332 passes through the cover structure 372 and the thin shell 4 to be displayed to the outside. Therefore, in order to ensure the working performance of the light sensing module 342 and the LED indicator light 332, the cover structure 372 adopts white translucent material.

[0109] Furthermore, the surface of the first circuit board 32 facing the thin shell 4 is made white, so that the first circuit board 32 can reflect light and reduce the shadow produced by the circuit module 3. Furthermore, the surface of the second circuit board 33 and the electronic components are also made white. The surface of the circuit board and the electronic components can be made white by spraying, sticking a white film or other methods. Furthermore, as Fig.17As shown, the first circuit board 32 is provided with a power module, and the power module adopts a Boost boost circuit, which can increase the 220V AC to 380V, thereby increasing the output power. The Boost boost circuit includes a boost inductor 36, and a white film is pasted on the surface of the boost inductor 36 to reflect light to avoid shadows. Further, the driving module includes a dimming circuit. When it only has a brightness adjustment function, the dimming circuit can be composed of a driving chip 3265 (such as a constant current dimming chip). When it has both dimming and color adjustment functions, the dimming circuit can be composed of two driving chips 3265, wherein the driving chip 3265 adopts the buckLED constant current dimming principle and is used with an energy storage inductor 3267. In one embodiment, the driving module includes two energy storage inductors 3267, and a white film is pasted on the surface of the energy storage inductor 3267 to avoid shadows.

[0110] In some embodiments, Figure 1-Figure 8 As shown, the shell 2 and the thin shell 4 are both circular in shape, the thin shell 4 has a light emitting surface, the light emitted by the light emitting component 5 is diverged outward through the light emitting surface, the light emitting surface is constructed as a convex arc surface, and the circuit module 3 is arranged at a corresponding position of the center of the light emitting surface, so that the vertical distance between the circuit module 3 and the thin shell 4 is larger, thereby reducing the shadow generated by the circuit module 3.

[0111] In some embodiments, Fig.17 As shown, the shell 2 is in a rectangular shape, the light-emitting element 5 includes a plurality of conductive strips 51 arranged in parallel, and a light-emitting unit 52 arranged on each of the conductive strips 51; the first circuit board 32 is in a long strip shape, and the first circuit board 32 and the conductive strips 51 are arranged in parallel; wherein, the technical details of the light-emitting element 5 and the shell 2 are described in detail above and will not be repeated here. Furthermore, the radar detection module 31 is arranged at the end of the first circuit board 32 to reduce the interference of electronic components to the radar detection module 31. Further, as Figure 17-Figure 18 As shown, the first circuit board 32 is provided with two first welding holes 323 for connecting to household AC power, and six second welding holes 324 for connecting to the light-emitting element 5, the first welding holes 323 are provided at one end of the first circuit board 32 away from the radar detection module 31, and the second welding holes 324 are provided at one end of the first circuit board 32 close to the radar detection module 31. The six second welding holes 324 are divided into two groups, which are respectively connected to the conductive strips 51 on the left and right sides of the circuit module 3.

[0112] In some embodiments, Fig.19 and Fig.18As shown, the driving module includes two driving chips 3265. The driving chip 3265 is used to adjust the brightness and color temperature of the light-emitting element 5. Since the driving chip 3265 generates a large amount of heat, in this embodiment, a heat sink 3266 is attached to the upper surface of the driving chip 3265. The heat sink 3266 is welded to the first circuit board 32. Thermal grease is applied between the heat sink 3266 and the driving chip 3265 to improve the heat conduction rate. The heat sink 3266 has two upwardly tilted heat sink fins to improve the heat dissipation effect. Furthermore, the heat sink 3266 is formed by cutting and bending an iron sheet.

[0113] As a common connection structure, the buckle structure has many advantages, making it widely used in many fields such as industrial design, daily necessities, and electronic products. Its advantages mainly lie in: fast assembly and disassembly, low manufacturing cost, lightweight, good reusability, and smooth and neat appearance. However, its easy disassembly also brings problems: users can disassemble the shell at will to destroy the internal structure, disassemble the shell and reinstall it to destroy the sealing, and criminals can disassemble the shell and steal or tamper with the internal data.

[0114] In order to solve the problem of easy disassembly of the buckle structure, according to the third aspect of the utility model, please refer to Figure 22-Figure 24 , providing a buckling structure 6, such as Fig.24 As shown, the buckle structure 6 includes a first clip 61 and a second clip 62, wherein the first clip 61 is provided with at least one first clip 611, and the second clip 62 is provided with at least one second clip 621, wherein the first clip 611 is clipped to the second clip 621; the first clip 61 is provided with a reinforcing portion 612, wherein the reinforcing portion 612 abuts against a side of the second clip 621 away from the first clip 611, so as to prevent the second clip 621 from deforming in a direction away from the first clip 611, and prevent the second clip 621 from being disengaged from the first clip 611, thereby preventing the buckle structure 6 from being disassembled. The reinforcing portion 612 may be a reinforcing wall, a reinforcing rib, a protruding structure, etc., and the function of the reinforcing portion 612 is to strengthen the anti-deformation ability of the second clip 621. The anti-disassembly buckling structure 6 provided by the utility model not only has the characteristics of quick installation, low manufacturing cost, light weight, and smooth and neat appearance of ordinary buckles, but also has an anti-disassembly function, which can effectively prevent the shell 2 using the buckling structure 6 from being disassembled.

[0115] It is worth mentioning that since the buckle structure 6 provided by the utility model does not need to consider whether it is easy to disassemble, the researchers can design the buckle to have a greater snapping force during design, so that the sealing performance between the two components connected by the buckle structure 6 is better.

[0116] Furthermore, if Fig.24 As shown, the first clip 61 includes a support wall 613, the first clip 611 is arranged on the support wall 613, a connecting wall 614 is arranged between the support wall 613 and the reinforcing portion 612, and the connecting wall 614 is provided with an operation hole 615 at a position corresponding to the first clip 611. The connecting wall 614 makes the connection between the reinforcing portion 612 and the first clip 611 more stable, thereby making the reinforcing effect of the reinforcing portion 612 better, and the anti-deformation effect of the second clip 621 better. The operation hole 615 is used for maintenance personnel to insert a screwdriver to destructively pry open the second clip 621 when necessary, forcing the second clip 621 to separate from the first clip 611, thereby disassembling the shell 2. The disassembled shell 2 cannot be used again, and the maintenance personnel need to replace a new shell 2 for installation.

[0117] Furthermore, if Fig.24 and Fig. 22 As shown, the width of the operating hole 615 is greater than the width of the first buckle 611 , so that a screwdriver inserted into the operating hole 615 can smoothly pry open the second buckle 621 .

[0118] Furthermore, if Fig.24 As shown, the reinforcing portion 612 is constructed as a reinforcing wall, and the side of the reinforcing wall abuts against the second buckle 621. The supporting wall 613, the connecting wall 614 and the reinforcing wall surround the second buckle 621, so that the second buckle 621 and the first buckle 611 are stably snapped together. It is not easy for the user to separate the two buckles by prying the second buckle 621 or the supporting wall 613 where the first buckle 611 is located, thereby making the anti-disassembly performance of the buckling structure 6 stronger.

[0119] Furthermore, if Fig.24 As shown, the second clamping member 62 is provided with a recessed portion 622 at a position corresponding to the reinforcing wall, and the end of the reinforcing wall is sunk into the recessed portion 622 so that a screwdriver is not easily inserted into the end of the reinforcing wall, thereby enhancing the anti-disassembly performance of the snap-fit ​​structure 6.

[0120] In some embodiments, Fig.24As shown, the first buckle 611 includes a first buckling surface, and the second buckle 621 includes a second buckling surface. When the first buckle 611 is buckled into the second buckle 621, the first buckle surface is attached to the second buckle surface, wherein the second buckle surface is arranged on the side of the second buckle 621 away from the operating hole 615, that is, the first buckle 611 is far away from the operating hole 615, and the second buckle 621 is close to the operating hole 615. When the screwdriver is inserted into the operating hole 615, it will first contact the second buckle 621. When the user is not clear about the internal structure, he will first pry the second buckle 621, so that the anti-disassembly function of the second buckle 621 can take effect.

[0121] In some embodiments, Fig.24 and Fig. 22 As shown, the number of the first buckles 611 is multiple, the second buckles 621 are constructed as a whole, the second buckles 621 extend toward the arrangement direction of the first buckles 611, and each of the first buckles 611 is respectively engaged with the second buckles 621. The second buckles 621 are constructed as a whole, which further enhances the anti-deformation ability of the second buckles 621, so that the anti-disassembly performance of the buckling structure 6 is better. The reinforcing wall, the supporting wall 613, the connecting wall 614 and the second buckles 621 all extend along the arrangement direction of the first buckles 611.

[0122] According to a fourth aspect of the present utility model, Figure 22-Figure 29As shown, a flat panel lamp is provided, comprising the buckling structure 6 provided in the third aspect of the utility model, and also comprising a shell 2, a profile frame 7 and a thin shell 4, wherein the shell 2 is constructed as a lid-like structure with an open bottom, and the first clamping member 61 is integrally formed around the shell 2; wherein the lid-like structure can be understood as a structure including a top wall and surrounding side walls and an open bottom, and in this embodiment, the shell 2 comprises a square top wall and four trapezoidal side walls arranged around the square top wall, the trapezoidal side walls are inclined to the vertical direction, and the four trapezoidal side walls are mutually enclosed. The first clamping member 61 is arranged at the bottom edge of the trapezoidal side wall, and the first clamping member 61 extends along the bottom edge of the trapezoidal side wall. The profile frame 7 is constructed as a frame-shaped structure, and the second clamping parts 62 are integrally formed around it. The profile frame 7 is sleeved on the bottom edge of the trapezoidal side wall, and the profile frame 7 is clamped to the first clamping parts 61 of the shell 2 through the second clamping parts 62. The thin shell member 4 is arranged at the bottom of the shell 2 to form an accommodating cavity with the shell 2. A light-emitting member 5 is arranged inside the accommodating cavity, and the light emitted by the light-emitting member 5 is diffused outward through the thin shell member 4. A limiting wall 71 extends inward from the bottom of the profile frame 7, and the limiting wall 71 abuts against the lower surface of the thin shell member 4. The first clamping part 61 abuts against the upper surface of the thin shell member 4, and the thin shell member 4 is clamped and limited between the first clamping part 61 and the limiting wall 71. The flat panel lamp is the human body detection device 100 mentioned above. The technical details of the light-emitting component 5, the shell 2 and the thin shell 4 are described in detail above and will not be repeated here. In this embodiment, the thin shell 4 is constructed as a rectangular thin plate structure.

[0123] In this embodiment, since the flat panel lamp has a high requirement for sealing, if dust or water vapor enters the shell 2, it will affect the lighting effect and reduce the service life of the light. For this reason, this embodiment adopts an anti-disassembly snap-fit ​​structure 6 to ensure the sealing performance of the shell 2. Since the anti-disassembly snap-fit ​​structure 6 does not need to consider whether it is easy to disassemble, the R&D personnel can design the snap-fit ​​force to be greater during the design, so that the clamping force between the shell 2, the profile frame 7 and the thin shell 4 is greater and the sealing performance is better.

[0124] It is worth noting that Figure 22-Figure 27 Provide a 300mm×300mm flat panel light. Fig.29 A flat panel light with a size of 300mm×600mm is provided. The two flat panel lights differ only in length, and the other structures are the same. Fig.29 The thin shell member 4 is not shown.

[0125] Furthermore, if Fig.26 and Fig.29As shown, the limiting wall 71 surrounds the inner side of the profile frame 7, and the first clamping member 61 surrounds the edge of the shell 2. The first clamping member 61 presses the edges of the thin shell 4 tightly against the shell 2, so that the thin shell 4 and the shell 2 are seamlessly fitted, thereby increasing the sealing performance of the flat panel lamp.

[0126] Furthermore, if Fig.23 , Fig.26 and Fig. 27 As shown, the flat panel light includes a circuit module 3, which is arranged inside the accommodating cavity. The circuit module 3 includes a radar detection module 31. The emitting surface 311 of the radar detection module 31 is arranged toward the thin shell 4. The emitting surface 311 of the radar detection module 31 can emit radar detection waves. The radar detection waves are emitted to the outside through the thin shell 4 to detect whether there is a human body in an area. Among them, the technical details of the circuit module 3 and the radar detection module 31 are described in detail above and will not be repeated here. It is worth mentioning that due to the obvious attenuation effect of the water film on the radar detection wave, an anti-disassembly snap-fit ​​structure 6 is adopted between the shell 2 and the profile frame 7 of this embodiment, so that the sealing between the shell 2 and the thin shell 4 is better, and dust and water vapor are prevented from entering the shell 2 to affect the detection performance of the radar detection module 31.

[0127] During decoration, many home appliances and household devices need to be installed on the wall or ceiling by punching holes in order to ensure stability and safety, such as TV stands, audio equipment, lamps, curtain tracks, water heaters, bathroom hardware, etc. If there is a deviation in the position of the holes, some home appliances will be unstable or even impossible to install, and re-punching will further damage the wall, increasing the difficulty of repair. The mounting frame of existing household devices is often installed on the wall with two circular holes, and the installation and fixation are achieved by positioning the two holes. Although the installation stability is good, it undoubtedly requires high drilling accuracy. If the drilling position is slightly deviated, it may be impossible to install. If two waist-shaped holes are used for installation, although the drilling accuracy requirements can be reduced, the connection stability is insufficient. Specifically, after the mounting frame is locked to the wall by screws, the screws can still slide in the strip holes, causing the mounting frame to slip or rotate, and the position of the mounting frame cannot be locked.

[0128] In order to solve the problem that the above-mentioned mounting frame has too high a requirement for punching accuracy or insufficient connection stability, according to the fifth aspect of the utility model, as Figure 9-Figure 15As shown, a connector 1 is provided, comprising a connecting body 11 and a connecting portion arranged on the connecting body 11, wherein the connecting portion can be connected to a working body; wherein the connecting body 11 is provided with a first strip hole 114, a second strip hole 115 and a third strip hole 116 for external installation, the extension direction of the first strip hole 114 is in the same direction as the extension direction of the second strip hole 115, and there is a preset angle between the extension direction of the first strip hole 114 and the extension direction of the third strip hole 116, and the preset angle is between 70°-110°. wherein the working body can be understood as a functional component, such as the main body of a television, the lamp body of a ceiling lamp, the main body of a water heater, the main body of a human presence sensor, etc., and the connector 1 can be understood as a connecting component adapted to the working body, and the connector 1 is used to install the working body to a wall, a ceiling board surface or other installation surface. the connection method between the connecting portion and the working body can be a screw fixed connection, a snap-on connection, a threaded connection, a rotational connection or other connection methods. The strip holes include waist-shaped holes 14, rectangular holes, etc., and the extension direction of the strip holes can be understood as the length direction of the strip holes. The extension direction of the first strip hole 114 and the extension direction of the second strip hole 115 are in the same direction, which can be understood as the two being arranged in parallel or in a colinear manner. The preset angle between 70°-110° can be understood as the extension direction of the first strip hole 114 and the extension direction of the third strip hole 116 being approximately perpendicular (including perpendicular).

[0129] The connector 1 provided by the utility model is installed with three strip holes, and the extension directions of the three strip holes are matched with each other, so that when the punching accuracy is not high, the connector 1 can be smoothly and stably fixed to the installation surface, avoiding the situation that the installation cannot be performed or the connection stability is insufficient. Figure 10-12 Taking the embodiment shown in the figure as an example, the extending direction of the first strip hole 114 is the same as the extending direction of the second strip hole 115, and the extending direction of the first strip hole 114 is perpendicular to the extending direction of the third strip hole 116. Fig.11 Provide the first installation method, by Fig.11 As can be seen from the first figure, the mounting surface is provided with a first mounting hole 210, a second mounting hole 220 and a third mounting hole 230 at the positions corresponding to the first strip hole 114, the second strip hole 115 and the third strip hole 116, respectively. However, the position accuracy of the holes is poor. When the first strip hole 114 is aligned with the first mounting hole 210, the second mounting hole 220 and the third mounting hole 230 both deviate from the ideal position. First, a first screw can be inserted into the first mounting hole 210 to position the first strip hole 114. Then, the connector 1 is rotated around the first mounting hole 210. Fig.11As shown in the second figure, the second mounting hole 220 reaches the second strip hole 115. At this time, the second screw can be inserted into the second mounting hole 220, and the second screw positions the second strip hole 115. The first screw and the second screw are not locked. Next, the connector 1 is translated along the extension direction of the first mounting hole 210, as shown in FIG. Fig.11 As shown in the third figure, the third mounting hole 230 reaches the third strip hole 116. During the translation process, since the extension direction of the second mounting hole 220 is in the same direction as the extension direction of the first mounting hole 210, the first screw and the second screw will not interfere with the translation of the connector 1; finally, the third screw is inserted into the third mounting hole 230, and the third screw positions the third strip hole 116. Since the extension direction of the third strip hole 116 is perpendicular to the extension direction of the first strip hole 114, the third mounting hole 230 and the first mounting hole 210 jointly limit the freedom of movement of the connector, and the first mounting hole 210 and the second mounting hole 220 jointly limit the freedom of rotation of the connector, so the connector 1 cannot move or rotate under the positioning effect of the three screws. At this time, the three screws are locked and the connector 1 will be completely locked. It is achieved that when the punching accuracy is not high, the connector 1 can be smoothly and stably fixed to the mounting surface; in addition, the connector 1 is fixed with three screws, which has higher stability.

[0130] like Fig.12 Provides a second installation method, by Fig.12 As can be seen from the first figure, when the second strip hole 115 is aligned with the second mounting hole 220, the first mounting hole 210 and the third mounting hole 230 are both deviated from the ideal position. First, the second screw can be inserted into the second mounting hole 220, and the second screw can position the second strip hole 115; then, the connector 1 is rotated around the second mounting hole 220, as shown in FIG. Fig.12 As shown in the second figure, the first mounting hole 210 reaches the first strip hole 114. At this time, the first screw can be inserted into the first mounting hole 210, and the first screw positions the first strip hole 114. The first screw and the second screw are not locked. Next, the connector 1 is translated along the extension direction of the second mounting hole 220, as shown in FIG. Fig.12 As shown in the third figure, the third mounting hole 230 reaches the third strip hole 116. During the translation process, since the extension direction of the first mounting hole 210 is the same as the extension direction of the second mounting hole 220, the first screw and the second screw will not interfere with the translation of the connector 1; finally, the third screw is inserted into the third mounting hole 230, and the third screw positions the third strip hole 116. At this time, the three screws are locked, and the freedom of the connector 1 will be completely locked.

[0131] Further, by Fig.11 and Fig.12It can be seen from the two installation methods shown that there is a key step in the process of adjusting the position of the connector 1, namely, rotation adjustment. It can be seen that if the extension direction of the first connection hole or the second connection hole is perpendicular to the direction of rotation adjustment, the adjustment range will be large; if the extension direction of the first connection hole or the second connection hole is parallel to the direction of rotation adjustment, the adjustment range will be small. Therefore, in this embodiment, if Figure 10-12 As shown, the second strip hole 115 is arranged in the extension direction of the first strip hole 114, so that during rotation adjustment, the extension direction of the first connecting hole or the second connecting hole is perpendicular to the rotation direction, so that the range of rotation adjustment is increased, thereby being more tolerant to punching deviations.

[0132] Further, by Fig.11 It can be seen that the first mounting hole 210 and the second mounting hole 220 jointly limit the rotational freedom of the connecting member, and the third mounting hole 230 and the first mounting hole 210 jointly limit the movement freedom of the connecting member. To this end, in this embodiment, the preset angle is set to 90°, so that the third mounting hole 230 is perpendicular to the first mounting hole 210, so that the movement freedom of the connecting member is limited more stably.

[0133] In some embodiments, Figure 13-Figure 14 As shown, the connecting body 11 is provided with a fourth strip hole 117, and the fourth strip hole 117 is arranged in parallel with the first strip hole 114, that is, the connector 1 is provided with three parallel strip holes and one vertical strip hole, and the user can select two parallel strip holes and one vertical strip hole for installation according to the needs, and the installation flexibility is higher. In one embodiment, as Fig.14 As shown in the first figure, the mounting surface is provided with a second mounting hole 220, a third mounting hole 230 and a fourth mounting hole 240 at the corresponding positions of the second strip hole 115, the third strip hole 116 and the fourth strip hole 117, respectively. However, the position accuracy of the holes is poor. When the second strip hole 115 is aligned with the second mounting hole 220, the third mounting hole 230 and the fourth mounting hole 240 are both deviated from the ideal position. First, the second screw can be inserted into the second mounting hole 220, and the second screw can position the second strip hole 115; then, the connector 1 is rotated around the second mounting hole 220, as shown in FIG. Fig.14 As shown in the second figure, the fourth mounting hole 240 reaches the fourth strip hole 117. At this time, the fourth screw can be inserted into the fourth mounting hole 240, and the fourth screw positions the fourth strip hole 117. The second screw and the fourth screw are not locked. Next, the connector 1 is translated along the extension direction of the second mounting hole 220, as shown in FIG. Fig.14As shown in the third figure, the third mounting hole 230 reaches the third strip hole 116. During the translation process, since the extension direction of the fourth mounting hole 240 is the same as the extension direction of the second mounting hole 220, the fourth screw and the second screw will not interfere with the translation of the connector 1; finally, the third screw is inserted into the third mounting hole 230, and the third screw positions the third strip hole 116. Since the extension direction of the third strip hole 116 is perpendicular to the extension direction of the second strip hole 115, the third mounting hole 230 and the second mounting hole 220 jointly limit the movement freedom of the connecting member, and the second mounting hole 220 and the fourth mounting hole 240 jointly limit the rotation freedom of the connecting member, so the connector 1 cannot move or rotate under the positioning action of the three screws. At this time, the three screws are locked and the connector 1 will be completely locked.

[0134] In some embodiments, Fig. 9 and Fig.14 As shown, the connection body 11 is provided with a wire passing portion 113, which penetrates the connection body 11 for passing wires. The wire passing portion 113 is not only convenient for wiring, but also can hide the wires inside the connector 1. A circuit module 3 is arranged inside the housing 2, and the wires pass through the wire passing portion 113 and the housing 2 is connected to the circuit module 3.

[0135] In some embodiments, Figure 9-Figure 15 As shown, the connection portion is configured to be rotatably engaged with the working body, the connection body 11 is configured to be a disc-shaped structure, and the connection portion includes a plurality of rotation engaging positions 12 distributed along the circumferential direction of the connection body 11, and the rotation engaging positions 12 extend along the circumferential direction of the connection body 11. The rotation engaging can be understood as the working body being able to engage with the connection portion through rotational movement, and in addition, the working body being able to be detached from the connection portion through rotational movement. Among them, thanks to the fact that the connector 1 is stably restricted in the horizontal direction by three screws in rotational freedom, the connector 1 is prevented from loosening during the rotation engaging process of the working body, so that the working body can be rotationally engaged or rotationally separated stably and reliably. The technical details of the rotation engaging position 12 are described in detail above and will not be repeated here.

[0136] Furthermore, if Fig. 9 and Fig.10As shown, the connecting body 11 has an abutting surface 111, and the abutting surface 111 is used to abut against the working body; the connecting portion includes a first clamping wall 121 extending along the circumferential direction of the connecting body 11, and the first clamping wall 121 is used to clamp to the working body, and the first clamping wall 121 is constructed as the bottom wall of the rotating clamping position 12. Furthermore, the connecting body 11 includes a first wall 112 parallel to the abutting surface 111, and the first clamping wall 121 is sunken into the first wall 112, and the rotation clamping position 12 is formed between the first clamping wall 121 and the first wall 112; the first wall 112 is constructed as an annular plate structure, and a plurality of supporting protrusions 1121 are protrudingly provided on a side of the first wall 112 facing away from the first clamping wall 121, and the supporting protrusions 1121 are evenly distributed along the circumferential direction of the first wall 112. When the connector 1 is fixedly connected to the external mounting surface 200, the supporting protrusions 1121 abut against the external mounting surface 200 to avoid deformation of the first wall 112 under the action of the tightening force of the screw, thereby ensuring that the first wall 112 is parallel to the external mounting surface 200, thereby avoiding the position of the rotation clamping position 12 from being affected by the tightening force of the screw. Furthermore, an end wall 122 is provided at one end of the rotational engaging position 12, the end wall 122 connects the first wall 112 and the first engaging wall 121, and the end wall 122 is used to limit the rotational movement limit position of the engaging structure 21 of the working body; a limiting portion 123 is provided on one side of the first engaging wall 121 facing the abutting surface 111, and the limiting portion 123 is used to limit the engaging structure 21 of the working body from being separated from the rotational engaging position 12. The technical details of the connecting body 11, the first engaging wall 121, the first wall 112, the limiting portion 123 and the engaging structure 21 are described in detail above and will not be repeated here.

[0137] In some embodiments, Fig.15 As shown, the connecting body 11 is provided with a snap-in groove 124 and a snap-in entrance 125, the snap-in groove 124 extends in an arc shape along the circumferential direction of the connecting body 11, the snap-in entrance 125 is arranged at the end of the snap-in groove 124, the width of the snap-in entrance 125 is greater than the width of the snap-in groove 124, and the snap-in entrance 125 is used for the snap-in structure 21 of the working body to snap into the snap-in groove 124; the snap-in groove 124 and the snap-in entrance 125 form the rotation snap-in position 12. The technical details of the snap-in groove 124, the snap-in entrance 125 and the snap-in structure 21 are described in detail above and will not be repeated here.

[0138] According to a sixth aspect of the present utility model, Figure 1-Figure 15 As shown, a ceiling lamp is provided, comprising Figure 9-Figure 15The connector 1 shown, wherein the ceiling lamp also includes a lamp body, and the lamp body is rotatably clamped to the connecting part, and the lamp body includes: a shell 2, a thin shell 4 and a light-emitting part 5, the shell 2 is provided with a clamping structure 21 adapted to the connecting part, and the clamping structure 21 is rotatably clamped to the connecting body 11; the thin shell 4 is covered on the side of the shell 2 away from the connecting body 11, and forms a accommodating cavity with the shell 2; the light-emitting part 5 is arranged inside the accommodating cavity, and the light emitted by the light-emitting part 5 is diffused outward through the thin shell 4. Wherein, the ceiling lamp is the human body detection device 100 mentioned above, and the technical details of the shell 2, the thin shell 4 and the light-emitting part 5 are described in detail above, and will not be repeated here. Thanks to the fact that the connector 1 is stably restricted in the horizontal rotational freedom by three screws, the connector 1 is prevented from loosening during the rotational clamping process of the working body, so that the lamp body can be stably and reliably rotated or separated.

[0139] Furthermore, if Figure 2-Figure 5 As shown, the lamp body includes a circuit module 3, which is arranged inside the accommodating cavity. The circuit module 3 includes a radar detection module 31. The emitting surface 311 of the radar detection module 31 is arranged toward the thin shell 4. The emitting surface 311 of the radar detection module 31 can emit radar detection waves. The radar detection waves are emitted to the outside through the thin shell 4 to detect whether there is a human body in an area. Among them, the technical details of the circuit module 3 and the radar detection module 31 are described in detail above and will not be repeated here. Thanks to the fact that the ceiling lamp is connected to the connector 1 by a rotating snap-on connection, the thickness of the connector 1 can be made very thin, thereby realizing the ceiling installation of the lamp body. The radar detection module 31 is closer to the ceiling panel, making the detection range larger.

[0140] It should also be noted that the above-mentioned embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments, that is, the technical solutions disclosed in the later (order of sequence recorded in the text) embodiments should include the technical solutions recorded in the embodiment and the technical solutions recorded in all embodiments before the embodiment.

[0141] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A human body detection device, characterized in that: include: A housing, used for external installation; A thin shell member, covering the shell, and forming a receiving cavity with the shell; A light-emitting component is disposed inside the accommodating cavity, and light emitted by the light-emitting component is diffused outward through the thin shell component; A circuit module is arranged inside the accommodating cavity, the circuit module includes a first circuit board and a radar detection module electrically connected to the first circuit board, the light-emitting component is electrically connected to the first circuit board, the radar detection module has an emitting surface, the emitting surface is arranged toward the thin shell component, the emitting surface can emit radar detection waves, the radar detection waves pass through the thin shell component and are emitted to the outside to detect whether there is a human body in an area, and the light-emitting component switches the working state in response to the detection result of the radar detection module.

2. The human body detection device according to claim 1, characterized in that: The radar detection module is directly or indirectly mounted on the first circuit board, the vertical distance between the emitting surface and the thin shell is greater than 18 mm, and the distance between the emitting surface and the first circuit board is greater than 5 mm.

3. The human body detection device according to claim 2, characterized in that: A receiving groove is recessed on one side of the shell body facing the thin shell member, and the first circuit board is received in the receiving groove.

4. The human body detection device according to claim 1, characterized in that: A covering member is also included, and the circuit module is at least partially wrapped or covered by the covering member.

5. The human body detection device according to claim 4, characterized in that: The covering member is configured as a white heat shrink tubing, and the circuit module is at least partially covered by the heat shrink tubing.

6. The human body detection device according to claim 5, characterized in that: The circuit module includes a light sensing module, which can sense light illumination, and the light sensing module is arranged within the sleeve range of the heat shrink sleeve.

7. The human body detection device according to claim 4, characterized in that: The covering member is constructed as a cover structure, and the cover structure is arranged on a side of the circuit module facing the thin shell member.

8. The human body detection device according to claim 1, characterized in that: The first circuit board is provided with a first cylindrical capacitor, and the connecting column of the first cylindrical capacitor is bent so that the angle between the extension direction of the first cylindrical capacitor and the first circuit board is less than 20°; The first circuit board is provided with a MOS tube, and the side surface of the first cylindrical capacitor is against the MOS tube, so that the MOS tube dissipates heat through the first cylindrical capacitor; The circuit module is in the shape of a long strip, the light-emitting element comprises a plurality of conductive strips arranged in parallel, a plurality of light-emitting units are arranged on each conductive strip, and the circuit module is arranged in parallel with the conductive strips.

9. The human body detection device according to any one of claims 1 to 8, characterized in that: The shell and the thin shell are both circular in shape. The thin shell has a light emitting surface. The light emitted by the light emitting component is diffused outward through the light emitting surface. The light emitting surface is constructed as an outwardly convex arc surface. The circuit module is arranged at a corresponding position of the center of the light emitting surface.

10. The human body detection device according to any one of claims 1 to 8, characterized in that: The shell is rectangular in shape, the light-emitting component includes a plurality of conductive strips arranged in parallel, and a light-emitting unit arranged on each of the conductive strips; the first circuit board is in the shape of a long strip, and the first circuit board and the conductive strips are arranged in parallel; the radar detection module is arranged at the end of the first circuit board.

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