Detection device

Abstract

A detection device provided by the present invention comprises a mounting assembly and a detection main body rotatably connected to the mounting assembly, the mounting assembly is used for being mounted on a mounted surface, and the detection main body rotates relative to the mounting assembly to switch a first orientation and a second orientation; the detection main body comprises a key arranged on the side surface, when the mounting assembly is mounted on the mounted surface and the detection main body is in the first orientation, the key is hidden, and when the mounting assembly is mounted on the mounted surface and the detection main body is in the second orientation, the key is exposed. According to the detection device provided by the invention, a user can press the key without dismounting the detection device, and meanwhile, the key does not occupy the space of the front surface of the detection main body, so that the sensing performance of the detection device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of detection devices, in particular to a detection device. BACKGROUND

[0002] With the improvement of people's living standards, the demand for intelligent life is getting higher and higher, especially the demand for the sensing performance of sensors is getting higher and higher. Only accurate sensing results can be obtained, can the terminal device in the intelligent scene provide reliable execution basis.

[0003] The sensing performance and adjustable performance of the existing sensor have room for improvement. SUMMARY

[0004] The existing recessed sensor is generally embedded and installed to the ceiling panel, and the sensor is only exposed on the front surface and hidden in the ceiling panel on the side surface. The sensor sets the key on the front surface of the sensor, and the user can directly press the key to realize the functions of resetting the network, restarting and the like without disassembling the sensor, which is convenient for the user to operate the key. However, such design destroys the integrity of the front surface of the sensor, and the key structure occupies the space of the front surface of the sensor, which affects the sensing performance of the sensor.

[0005] An object of the present application is to provide a detection device, wherein the detection main body can rotate relative to the mounting assembly, not only the detection direction can be adjusted, but also the key can switch between hidden and exposed states during the rotation of the detection main body, so that the key arranged on the side surface of the detection main body can be operated, and the user can press the key without disassembling the detection device; at the same time, the integrity of the front surface of the detection main body is ensured, and the key does not occupy the space of the front surface of the detection main body, so that the sensing performance of the detection device is improved; in addition, when the detection main body is rotated to the hidden state of the key, most of the volume of the detection device is embedded in the ceiling panel, and the visual effect is super thin.

[0006] Another object of the present application is to provide a detection device, wherein the rotation of the detection main body in the mounting ring can reduce the lateral gap between the detection main body and the mounting ring, so as to hide the key; and when the lower surface of the detection main body is in an approximately parallel state with the installed surface, most of the volume of the detection main body is located above the mounting ring, and the thickness of the detection main body protruding from the installed surface is thin, which weakens the sense of presence of the detection device and realizes the visual effect of super thin.

[0007] Another object of the present application is to provide a detection device, wherein the detection main body rotates in the vertical direction relative to the mounting ring, and cooperates with the horizontal rotation of the mounting ring, so that the detection main body can adjust the detection direction in a conical space.

[0008] Another object of the present application is to provide a detection device, wherein the first orientation is perpendicular to the first surface, so that when the detection body is in the first orientation, the lower surface of the detection body is in a similar parallel state with the mounting surface, and the thickness of the detection body protruding from the mounting surface reaches a minimum value, achieving a visual effect of ultra-thinness.

[0009] Another object of the present application is to provide a detection device, wherein the included angle between the second orientation and the first orientation is greater than 18°, so that the key operating space is larger, facilitating user pressing.

[0010] Another object of the present application is to provide a detection device, wherein the lateral gap between the side surface of the detection body and the mounting ring is less than 2mm, so that when the detection body is in the first orientation, the user cannot see the key through the gap from below the detection body, and the key is visually hidden; and reducing the lateral gap can make the diameter of the detection body larger, and there is sufficient space on the front surface of the detection body to arrange the sensing module.

[0011] Another object of the present application is to provide a detection device, wherein by controlling the height of the sensing surface edge protruding from the second surface, the bottom of the side surface of the detection body is prevented from interfering with the mounting ring during rotation.

[0012] Another object of the present application is to provide a detection device, wherein the ceiling plate is clamped between the spring claw and the mounting ring, so that the detection device is installed in the ceiling plate in a ceiling-suspended manner, and the thickness of the detection body protruding from the mounting surface is thin, weakening the presence of the detection device.

[0013] Another object of the present application is to provide a detection device, wherein the first click ring cooperates with the second click ring, so that the detection body produces a click feeling relative to the connecting portion during rotation, thereby enabling the detection body to maintain the current detection direction after rotation, stabilizing the detection direction, and keeping the detection direction stable when the user presses the key, and the detection body does not shake.

[0014] Another object of the present application is to provide a detection device, wherein the elastic clamping arm is connected to the blind hole in the clamping groove through a screw, to enhance the connection stability and prevent the clamping shaft from disengaging from the clamping groove when the key is pressed.

[0015] Another object of the present application is to provide a detection device, wherein the spring limiting portion and the elastic clamping arm independently extend to the mounting ring, so that deformation of the elastic clamping arm does not drive the spring limiting portion to deform.

[0016] Another object of the present application is to provide a detection device, wherein the first side and the second side of the detection body are respectively rotationally connected to the mounting assembly, and the key is arranged on the third side, so that when the detection body is adjusted to the second orientation, the key is exposed.

[0017] Another object of the present application is to provide a detection device, wherein the button is arranged at a middle position between the first side and the second side, so that when the detection body is adjusted to the second orientation, the button is more exposed for the user to press.

[0018] Another object of the present application is to provide a detection device, wherein the button is arranged at a middle position between the first side and the second side, so that when the detection body is adjusted to the second orientation, the button is more exposed for the user to press.

[0019] Another object of the present application is to provide a detection device, wherein the button is arranged at a middle position between the first side and the second side, so that when the detection body is adjusted to the second orientation, the button is more exposed for the user to press.

[0020] Another object of the present application is to provide a detection device, wherein the button is arranged at a middle position between the first side and the second side, so that when the detection body is adjusted to the second orientation, the button is more exposed for the user to press.

[0021] Another object of the present application is to provide a detection device, wherein the button is arranged at a middle position between the first side and the second side, so that when the detection body is adjusted to the second orientation, the button is more exposed for the user to press.

[0022] Another object of the present application is to provide a detection device, wherein the button is arranged at a middle position between the first side and the second side, so that when the detection body is adjusted to the second orientation, the button is more exposed for the user to press.

[0023] Another object of the present application is to provide a detection device, wherein the button is arranged at a middle position between the first side and the second side, so that when the detection body is adjusted to the second orientation, the button is more exposed for the user to press.

[0024] To achieve at least one of the above objects, the present application provides a detection device, comprising a mounting assembly for mounting on a mounting surface, and a detection body rotatably connected to the mounting assembly, the detection body being rotatable relative to the mounting assembly to switch between a first orientation and a second orientation; the detection body comprises a side button, when the mounting assembly is mounted on the mounting surface and the detection body is in the first orientation, the button is hidden, and when the mounting assembly is mounted on the mounting surface and the detection body is in the second orientation, the button is exposed.

[0025] Further, the mounting assembly comprises a mounting ring for fitting on the mounting surface, and the detection body is rotatable within the mounting ring to switch between the first orientation and the second orientation.

[0026] Further, the mounting assembly is embeddedly mounted on the mounting surface, the mounting ring has a first surface for fitting on the mounting surface, the first orientation is perpendicular to the first surface, and the second orientation is inclined to the first surface, when the detection body is in the second orientation, the side of the detection body is obliquely exposed inside the mounting ring, so that the button is exposed.

[0027] Further, when the detection body is in the second orientation, the button is completely exposed; the included angle between the second orientation and the first orientation is greater than 18°.

[0028] In some embodiments, when the detection body is adjusted to the first orientation, the lateral gap between the side of the detection body and the mounting ring is less than 2mm, so that the button is hidden.

[0029] Further, the detection body comprises a sensing surface facing a sensing area, the mounting ring has a second surface facing away from the first surface, when the detection body is in the first orientation, the edge of the sensing surface is recessed from the second surface, or the edge of the sensing surface is flush with the second surface, or the edge of the sensing surface is protruding from the second surface with a protruding height less than 4mm; the mounting assembly comprises two connecting portions extending from the mounting ring and spring claws arranged at the ends of the connecting portions, and the detection body is rotatably connected to the connecting portions on both sides; the mounting assembly is adapted to be embeddedly mounted on a ceiling panel, when the mounting assembly is mounted on the ceiling panel, the first surface of the mounting ring fits on the lower surface of the ceiling panel, and the spring claws abut against the upper surface of the ceiling panel.

[0030] In some embodiments, the side of the detection body includes at least a first side, a second side, and a third side, the first side and the second side are oppositely arranged, and the third side is between the first side and the second side; the first side and the second side are respectively rotationally connected to the mounting assembly, and the button is arranged on the third side, so that when the detection body is adjusted to the second orientation, the button is exposed; the button is arranged at a middle position between the first side and the second side.

[0031] In some embodiments, the detection body includes a sensing cover arranged to face the sensing area, and the back of the sensing cover is integrally formed with a lens assembly, and the lens assembly includes a plurality of lens units.

[0032] Further, the center of the lens assembly is located in the middle region of the sensing cover, the detection body is internally provided with a first circuit board, the first circuit board is provided with a pyroelectric sensing element facing the sensing cover, and the pyroelectric sensing element is located at a corresponding position of the center of the lens assembly; the coverage area of the lens assembly is greater than 40% of the coverage area of the sensing cover.

[0033] Further, the detection body is further internally provided with a second circuit board, the second circuit board is arranged to be raised on the first circuit board, the second circuit board is provided with a radar module, and the radar wave generated by the radar module is transmitted outward through the sensing cover; the lens unit is configured as a Fresnel lens.

[0034] In some embodiments, the side of the detection body includes a third side provided with the button; the second circuit board is arranged at a position deviated from the center of the first circuit board, and the second circuit board is located between the center of the first circuit board and the third side; a limiting structure is arranged at the part where the detection body is connected to the mounting assembly, the limiting structure can limit the rotation angle of the detection body rotating towards the third side to be less than 15°; the detection body includes a shell, the bottom of the shell is open, the sensing cover is arranged on the bottom of the shell to form a containing cavity with the shell, and the first circuit board and the second circuit board are contained in the containing cavity.

[0035] In some embodiments, the detection body is internally provided with a first circuit board, the first circuit board faces the sensing area, an electronic switch is arranged at a position corresponding to the button at the edge of the first circuit board, a trigger rod of the electronic switch laterally protrudes from the first circuit board, and the button abuts against the trigger rod; the detection body includes a shell, and the button is integrally formed on the shell.

[0036] In some embodiments, the detection body is internally provided with a second circuit board, and the second circuit board is provided with a radar module facing the sensing area.

[0037] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the invention. The foregoing inventive concepts can be combined in any way, and these and other objectives of the invention will be fully realized through the following detailed description and accompanying drawings.

[0038] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the invention. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the installation of a detection device according to an embodiment of the present invention;

[0041] Figure 2 This is a side view of the detection device of an embodiment of the present invention installed on a ceiling panel;

[0042] Figure 3 This is a schematic diagram of the detection device installed on the ceiling panel according to an embodiment of the present invention, with the device facing a first orientation and a second orientation.

[0043] Figure 4 This is a schematic diagram of the overall structure of the detection device according to an embodiment of the present invention;

[0044] Figure 5 This is a schematic diagram showing the connection between the detection body and the installation components according to an embodiment of the present invention;

[0045] Figure 6 This is a partially enlarged view of the mounting ring and connecting portion according to an embodiment of the present invention;

[0046] Figure 7 This is a partially enlarged view of the mounting ring and connecting portion according to an embodiment of the present invention;

[0047] Figure 8 This is a partially enlarged view of the detection subject according to an embodiment of the present invention;

[0048] Figure 9 This is a schematic diagram of the detection device installed on the ceiling panel according to an embodiment of the present invention, with the device facing a first orientation and a second orientation.

[0049] Figure 10 This is a schematic diagram of the detection main structure according to an embodiment of the present invention;

[0050] Figure 11 is a sectional view of a detection device according to an embodiment of the present application;

[0051] Figure 12 is a sectional view of a detection device according to an embodiment of the present application at A-A;

[0052] Figure 13 is an exploded view of a detection body according to an embodiment of the present application;

[0053] Figure 14 is an assembly view of a sensing cover and other components of a detection body according to an embodiment of the present application;

[0054] Figure 15 is a front view of a sensing cover according to an embodiment of the present application;

[0055] Figure 16 is a structural view of a lens unit according to an embodiment of the present application;

[0056] Figure 17 is a front view of a sensing cover according to an embodiment of the present application;

[0057] Figure 18 is a structural view of a sensing cover according to an embodiment of the present application;

[0058] Figure 19 is a structural view of a sensing cover according to an embodiment of the present application;

[0059] Figure 20 is a structural view of an isolation housing according to an embodiment of the present application;

[0060] Figure 21 is a front view of a detection body without a sensing cover according to an embodiment of the present application;

[0061] Figure 22 is a connection view of a first circuit board and a second circuit board according to an embodiment of the present application;

[0062] Figure 23 is a structural view of a housing according to an embodiment of the present application;

[0063] Figure 24 is a structural view of a first circuit board and electronic components according to an embodiment of the present application;

[0064] Figure 25 is a sectional view of a housing, a first circuit board, a second circuit board, and electronic components according to an embodiment of the present application. DETAILED DESCRIPTION

[0065] In the description of the present application, the terms "inner", "outer", "horizontal", "vertical", "upper", "lower", "top", "bottom", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and do not require the present application to be constructed and operated in a particular orientation, and therefore should not be understood as a limitation on the present application.

[0066] In the description of the present application, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can be explicitly or implicitly included one or more of the features.

[0067] In the description of the present application, unless otherwise explicitly specified and limited, the term "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned term in the present application can be understood according to the specific circumstances.

[0068] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. The technical solutions of each embodiment can be combined with each other, but it must be based on the realization of those skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the scope of protection required by the present application.

[0069] The existing concealed sensor is generally embedded and installed to the ceiling panel, the sensor is only exposed on the front surface and hidden in the inside of the ceiling panel, the sensor sets the key on the front surface of the sensor, the user can directly press the key to realize the functions of resetting, network setting and restarting without disassembling the sensor, which is convenient for the user to operate the key. However, such design destroys the integrity of the front surface of the sensor, and the key structure occupies the space of the front surface of the sensor, which affects the sensing performance of the sensor.

[0070] To solve the above problems, according to the first aspect of the present application, a detection device 100 is provided, please refer to Figures 1-25The detection device 100 provided by the present application will be specifically illustrated. In the embodiment of the present application, the detection device 100 can be an infrared pyroelectric detection device, a radar detection device or a detection device integrating an infrared pyroelectric module and a radar module, however, the protection scope of the present application is not limited to these detection devices, in other embodiments, the detection device 100 can also be other directional detection devices, such as distance detection devices and the like.

[0071] As shown in the figure, the detection device 100 comprises a mounting assembly 120 and a detection main body 110 movably connected to the mounting assembly 120, the mounting assembly 120 is used for mounting on a mounting surface 210, the detection main body 110 is movable relative to the mounting assembly 120 to switch between a first connection state and a second connection state, the detection main body 110 comprises a button 11 arranged on the side surface, when the mounting assembly 120 is mounted on the mounting surface 210 and the detection main body 110 is in the first connection state, the button 11 is hidden, when the mounting assembly 120 is mounted on the mounting surface 210 and the detection main body 110 is in the second connection state, the button 11 is exposed. Figures 1-9

[0072] Wherein, the movable connection can be a rotating connection, a sliding connection or other movable connection mode, the first connection state can be understood as that the detection main body 110 is in a first position or a first angle relative to the mounting assembly 120, the second connection state can be understood as that the detection main body 110 is in a second position or a second angle relative to the mounting assembly 120. The mounting surface 210 can be understood as a surface for mounting the detection device 100, such as the lower surface of a ceiling plate 200, the outer surface of a wall protection plate and the like. The button 11 being hidden can be understood as that after the detection device 100 is mounted on the mounting surface 210, the user cannot see the button 11.

[0073] The detection device 100 provided by the present application, the button 11 is arranged on the side surface of the detection main body 110, not only the integrity of the front surface of the detection main body 110 is reserved, but also the button 11 does not occupy the space of the front surface of the detection main body 110, so that there is sufficient space on the front surface of the detection main body 110 to arrange the sensing module 2 and the lens assembly 32, and the structure related to the button 11 will not block the sensing signal, so that the sensing performance of the detection device 100 is improved.

[0074] ​Notably, the detection body 110 is movable relative to the mounting assembly 120 to switch the first connection state and the second connection state, so as to switch the hidden / exposed state of the button 11, when the button 11 is in the hidden state, the detection device 100 protrudes from the thickness of the installed surface 210, so as to achieve the visual effect of ultra-thinness, when the button 11 is in the exposed state, the user can press the button 11 without dismounting the detection device 100.

[0075] In conclusion, the detection device 100 provided by the application not only can press the button 11 without dismounting the detection device 100, but also achieves the visual effect of ultra-thinness of the top-mounted detection device 100, meanwhile, the integrity of the front of the detection body 110 is reserved, the button 11 does not occupy the space of the front of the detection body 110, so that the sensing performance of the detection device 100 is improved.

[0076] As shown in Figure 9 , when the detection body 110 is in the first connection state, the height of the detection body 110 protruding from the installed surface 210 is H1, when the detection body 110 is in the second connection state, the height of the detection body 110 protruding from the installed surface 210 is H2, then H1

[0077] In some embodiments, as shown in Figures 1-9 , the detection device 100 comprises a mounting assembly 120 and a detection body 110 rotatably connected to the mounting assembly 120, the detection body 110 rotates relative to the mounting assembly 120 to switch the first orientation and the second orientation; the detection body 110 comprises a button 11 arranged on the side surface, when the mounting assembly 120 is mounted on the installed surface 210 and the detection body 110 is in the first orientation, the button 11 is hidden, when the mounting assembly 120 is mounted on the installed surface 210 and the detection body 110 is in the second orientation, the button 11 is exposed.

[0078] The detection device 100 provided by the application, the detection main body 110 can rotate relative to the mounting assembly 120, not only the detection direction can be adjusted, but also the key 11 can switch the hidden / exposed state in the rotation process, so that the key 11 arranged on the side of the detection main body 110 can be operated, and the user can press the key 11 without disassembling the detection device 100; at the same time, the integrity of the front of the detection main body 110 is ensured, the key 11 does not occupy the space of the front of the detection main body 110, so that the sensing performance of the detection device 100 is improved; in addition, when the detection main body 110 is rotated to the hidden state of the key 11, most of the volume of the detection device 100 is embedded in the ceiling plate 200, and the visual effect is super-thin.

[0079] Since the function of the key 11 is generally reset network or restart, the frequency of use is very low, and when the key 11 is not used, it can be hidden, so that the detection device 100 protrudes from the thickness of the installed surface 210, and the visual effect is super-thin. When the key 11 needs to be used, the detection main body 110 is only rotated to expose the key 11 downward, and the key 11 can be pressed without disassembling the detection device 100.

[0080] The orientation of the detection main body 110 can be understood as the detection direction, that is, the direction of the detection main body 110 facing the sensing area, and the first orientation and the second orientation are indicated in the Figure 9 The sensing area can be understood as the area formed by the sensing range of the detection device 100, and the human body in the sensing area can trigger the detection device 100. When the detection main body 110 is in the first orientation, it is in the first connection state; when the detection main body 110 is in the second orientation, it is in the second connection state.

[0081] The hidden key 11 can be understood as that when the detection device 100 is installed on the installed surface 210, the user cannot see the key 11. When the detection device 100 is installed on the installed surface 210 and in the first orientation, as shown in the first drawing of Figure 3 , the detection main body 110 is only exposed on the front, and the user cannot see the key 11 on the side of the detection main body 110; when the detection main body 110 is in the second orientation, as shown in the second drawing of Figure 3 , the key 11 on the side of the detection main body 110 is exposed downward.

[0082] In another embodiment, which is not shown in the figures, the detection body 110 is slidingly connected to the mounting assembly 120, and the detection body 110 slides up and down relative to the mounting assembly 120 to switch between the first position and the second position; the detection body 110 includes a side button 11, when the mounting assembly 120 is installed on the installed surface 210 and the detection body 110 is in the first position, the button 11 is hidden, and when the mounting assembly 120 is installed on the installed surface 210 and the detection body 110 is in the second position, the button 11 is exposed. When the user needs to press the button 11, the detection body 110 can be slid downward to expose the button 11, and when the user does not need to press the button 11, the detection body 110 can be pushed upward into the mounting assembly 120 so that the button 11 is hidden. In a further optimized scheme of the embodiment, the mounting assembly 120 is provided with a positioning structure, and when the detection body 110 is in the first position, the detection body 110 is positioned.

[0083] In some embodiments, as shown in Figure 2 , Figure 3 and Figure 9 , the mounting assembly 120 includes a mounting ring 6 for fitting on the installed surface 210, and the detection body 110 rotates in the mounting ring 6 to switch between the first orientation and the second orientation. Among them, the rotation of the detection body 110 in the mounting ring 6 can reduce the lateral gap between the detection body 110 and the mounting ring 6, so as to hide the button 11; and when the lower surface of the detection body 110 is in an approximately parallel state with the installed surface 210, most of the volume of the detection body 110 is located above the mounting ring 6, and the detection body 110 protrudes from the installed surface 210 with a thin thickness, which weakens the presence of the detection device 100 and achieves an ultra-thin visual effect.

[0084] Further, the detection body 110 rotates in the vertical direction relative to the mounting ring 6, which cooperates with the horizontal rotation of the mounting ring 6, so that the detection body 110 can adjust the detection direction in a conical space.

[0085] Among them, in Figure 9 , the ceiling plate 200 and the mounting assembly 120 are shown in cross-section, and the detection body 110 is not shown in cross-section.

[0086] In some embodiments, as shown in Figure 9As shown, when the detection body 110 is in the first orientation, the detection body 110 protrudes from the height of the installed surface 210 by H1; when the detection body 110 is in the second orientation, the detection body 110 protrudes from the height of the installed surface 210 by H2, and H1 < H2, so that when the key 11 is hidden, the detection body 110 protrudes from the installed surface 210 with a thinner thickness, thereby achieving an ultra-thin visual effect. In some embodiments, H1 < 0.6*H2, so that when the key 11 is hidden, the detection body 110 protrudes from the installed surface 210 with a thinner thickness. In an exemplary embodiment, H1 = 8mm, and H2 = 18.8mm.

[0087] In some embodiments, as shown in Figure 11 The detection body 110 includes a sensing surface 31 facing the sensing area, which protrudes downward relative to the mounting ring 6 by a protrusion height L4 less than 10mm, and in an exemplary embodiment, L4 = 5mm.

[0088] Further, as shown in Figure 2 , Figure 3 and Figure 9 The mounting assembly 120 is embedded and mounted in the installed surface 210, the mounting ring 6 has a first surface 61 for fitting the installed surface 210, the first orientation is perpendicular to the first surface 61, and the second orientation is inclined to the first surface 61, when the detection body 110 is in the second orientation, the side surface of the detection body 110 is obliquely exposed inside the mounting ring 6, so that the key 11 is exposed. Among them, thanks to the first orientation being perpendicular to the first surface 61, when the detection body 110 is in the first orientation, its lower surface is in a similar parallel state with the installed surface 210, at this time the detection body 110 protrudes from the installed surface 210 with a minimum thickness, thereby achieving an ultra-thin visual effect.

[0089] Further, the mounting ring 6 extends upwardly to a connecting portion 7, the installed surface 210 is provided with a mounting hole 220, and the connecting portion 7 is embedded and mounted in the mounting hole 220, so that the mounting ring 6 can be horizontally rotated around the mounting hole 220. The detection body 110 rotates in the vertical direction relative to the mounting ring 6, and cooperates with the horizontal rotation of the mounting ring 6, so that the detection body 110 can be adjusted in a conical space.

[0090] Further, as shown in Figure 3 and Figure 9As shown, when the detection body 110 is in the second orientation, the button 11 is fully exposed; the angle between the second orientation and the first orientation is set to be greater than 18°. Full exposure can be understood as the entire button 11 being located below the mounting ring 6. In an exemplary embodiment, as... Figure 9 As shown, the angle between the second orientation and the first orientation is set to 35°. When the detection body 110 rotates 23° clockwise relative to the first orientation, the button 11 is fully exposed. When the detection body 110 rotates 35° clockwise relative to the first orientation, the detection device 100 is in the second orientation, at which point the button 11 is lower and has a larger operable space. In other embodiments, the angle between the second orientation and the first orientation can be set to a certain angle between 18° and 43°. By designing the position of the button 11 to fit the angle between the second and first orientations, it is ensured that the button 11 is fully exposed when the detection body 110 is in the second orientation.

[0091] It should be noted that the angle between the second orientation and the first orientation is set to be greater than 18° so that the button 11 has a larger operating space, making it easier for the user to press; the angle between the second orientation and the first orientation is set to be less than 43° so that when the rotation angle of the detection body 110 is too large, the top will interfere with the mounting ring 6, and controlling the rotation angle of the detection body 110 can avoid interference with the mounting ring 6.

[0092] Furthermore, such as Figure 11 As shown, when the detection body 110 is adjusted to the first orientation, the lateral gap between the side of the detection body 110 and the mounting ring 6 is less than 2mm, so that the button 11 is hidden. That is, when the detection body 110 is in the first orientation, the lateral gap is very small, and the user cannot see the button 11 through the gap from below the detection body 110, thus visually hiding the button 11. Furthermore, reducing the lateral gap allows for a larger diameter of the detection body 110, providing sufficient space on the front of the detection body 110 to arrange the sensing module 2 and the lens assembly 32. In an exemplary embodiment, the lateral gap is 0.5mm.

[0093] Because the lateral clearance is very small, the bottom side of the detection body 110 is prone to interference with the mounting ring 6 during rotation. To avoid interference between the detection body 110 and the mounting ring 6, in some embodiments, such as... Figure 11 As shown, the detection body 110 includes a sensing surface 31 facing the sensing area, and the mounting ring 6 has a second surface 62 facing away from the first surface 61. In an exemplary embodiment, when the detection body 110 is in the first orientation, the edge of the sensing surface 31 is recessed into the second surface 62 (e.g., ...). Figure 11In another exemplary embodiment, the edge of the sensing surface 31 is flush with the second surface 62 (not shown in the figure); in yet another exemplary embodiment, the edge of the sensing surface 31 protrudes from the second surface 62 by a height less than 4mm (not shown in the figure).

[0094] The present embodiment avoids the interference between the bottom of the side surface of the detection body 110 and the mounting ring 6 during rotation by controlling the height of the protrusion of the edge of the sensing surface 31 from the second surface 62. The edge of the sensing surface 31 can be understood as the junction between the sensing surface 31 and the side surface, as shown in Figure 19 In the present embodiment, the sensing surface 31 includes a protruding circular arc surface 311 and a rounded surface 312 arranged around the circular arc surface 311, and the rounded surface 312 is used to connect the circular arc surface 311 and the side surface. Therefore, the edge of the sensing surface 31 can be understood as the part where the rounded surface 312 meets the side surface.

[0095] Further, as shown in Figure 11 The inside of the mounting ring 6 and the side surface of the detection body 110 are provided with a hollowed-out area 63, which hollows out the upper part of the inside of the mounting ring 6, so as to avoid the interference between the detection body 110 and the mounting ring 6 during rotation, thereby making the gap between the lower part of the mounting ring 6 and the side surface of the detection body 110 smaller, which is conducive to hiding the keys 11.

[0096] In some embodiments, as shown in Figure 4 and Figure 5 The mounting assembly 120 includes two connecting portions 7 extending from the mounting ring 6 and spring claws 8 arranged at the ends of the connecting portions 7, and the detection body 110 is rotatably connected to the connecting portions 7 on both sides thereof; wherein the connecting portions 7 extend upward from both sides of the mounting ring 6, and the spring claws 8 are connected to the top of the connecting portions 7. As shown in Figure 2 The mounting assembly 120 is adapted to be embedded and mounted in the ceiling plate 200, and when the mounting assembly 120 is mounted in the ceiling plate 200, the first surface 61 of the mounting ring 6 is attached to the lower surface of the ceiling plate 200, and the spring claws 8 abut against the upper surface of the ceiling plate 200, so that the ceiling plate 200 is clamped between the spring claws 8 and the mounting ring 6, and the detection device 100 is mounted in the ceiling plate 200 in a suction manner. The detection body 110 protrudes from the thickness of the mounting surface 210, which weakens the presence of the detection device 100.

[0097] As shown in Figure 1 and Figure 2As shown, the ceiling panel 200 has a mounting hole 220. The outer diameter of the mounting ring 6 is larger than the diameter of the mounting hole 220, and the inner diameter of the mounting ring 6 is smaller than the diameter of the mounting hole 220. When installing the detection device 100, the user needs to first bend the two spring clips upward so that the spring clips 8 can pass through the mounting hole 220. After the spring clips 8 pass through the mounting hole 220, they spring back and abut against the upper surface of the ceiling panel 200. The detection device 100 moves upward under the elastic force of the spring clips 8 until the mounting ring 6 is attached to the lower surface of the ceiling panel 200. At this time, the ceiling panel 200 is clamped between the spring clips 8 and the mounting ring 6, and the installation is completed.

[0098] Among them, Figure 2 In the middle, the ceiling panel 200 is shown in cross-section, while the testing device 100 is not shown in cross-section.

[0099] In some embodiments, such as Figures 5-8 As shown, the connecting part 7 includes an elastic snap-fit ​​arm 71, and the elastic snap-fit ​​arm 71 is provided with a snap-fit ​​shaft 72 protruding inward. The detection body 110 is provided with snap-fit ​​grooves 12 on both sides. The snap-fit ​​shaft 72 is snapped into the snap-fit ​​grooves 12 to realize the rotatable connection between the detection body 110 and the connecting part 7.

[0100] Furthermore, such as Figure 7 As shown, the end of the snap-fit ​​shaft 72 is provided with a first guide slope 721, the normal of the first guide slope 721 being inclined downwards; the snap-fit ​​shaft 72 is snapped into the snap-fit ​​groove 12 from top to bottom, as shown. Figure 8 As shown, the detection body 110 is provided with an anti-detachment step 13 above the snap-fit ​​groove 12 to prevent the snap-fit ​​shaft 72 from detaching upward from the snap-fit ​​groove 12; the anti-detachment step 13 is provided with a second guide slope 131, the normal of the second guide slope 131 being upwardly inclined. The normal of the slope can be understood as a direction radiating outward from the slope and perpendicular to the slope. The downward inclination of the normal of the first guide slope 721 can be understood as the first guide slope 721 being a slope that is wider at the top and narrower at the bottom, and the upward inclination of the normal of the second guide slope 131 can be understood as the second guide slope 131 being a slope that is narrower at the top and wider at the bottom.

[0101] The first guide slope 721 and the second guide slope 131 cooperate to facilitate the engagement of the locking shaft 72 into the locking groove 12. During the process of the locking shaft 72 engaging into the locking groove 12, the first guide slope 721 abuts against the second guide slope 131, causing the elastic locking arm 71 to elastically deform outward. When the locking shaft 72 moves downward to the corresponding position of the locking groove 12, the deformation of the elastic locking arm 71 returns to normal, and the locking shaft 72 engages into the locking groove 12. Under the limiting action of the anti-detachment step 13, the locking shaft 72 cannot detach from the locking groove 12.

[0102] Further, as shown in Figure 6 , the outer side of the elastic clamping arm 71 is provided with a elastic force enhancement wall 711 at the root position, the elastic force enhancement wall 711 connects the elastic clamping arm 71 and the mounting ring 6, for enhancing the rigidity of the elastic clamping arm 71, to prevent the clamping shaft 72 from disengaging from the clamping groove 12.

[0103] Further, as shown in Figure 7 , the elastic clamping arm 71 is provided with a first clamping ring 712 around the clamping shaft 72, the first clamping ring 712 is provided with a plurality of clamping teeth in the circumferential direction; as shown in Figure 8 , the clamping groove 12 is provided with a second clamping ring 123 on the periphery, the second clamping ring 123 is provided with a plurality of clamping teeth in the circumferential direction; when the clamping shaft 72 is clamped into the clamping groove 12, the first clamping ring 712 cooperates with the second clamping ring 123, so that the detection body 110 produces a clamping feeling when rotating relative to the connecting part 7. Thus, the detection body 110 can maintain the current detection direction after rotation, so that the detection direction is stable, and the detection direction is kept stable when the user presses the key 11, and the detection body 110 does not shake.

[0104] In some embodiments, as shown in Figure 7 and Figure 8 , the clamping shaft 72 is configured as a hollow shaft, a connecting hole 722 is provided inside the hollow shaft, the clamping groove 12 is provided with a blind hole 121 at the corresponding position of the connecting hole 722, the connecting hole 722 can be penetrated by a screw (not shown in the figure), the screw penetrates the connecting hole 722 and is connected to the blind hole 121, and the elastic clamping arm 71 is connected to the blind hole 121 in the clamping groove through the screw, to enhance the connection stability and prevent the clamping shaft 72 from disengaging from the clamping groove 12 when the key 11 is pressed.

[0105] In some embodiments, as shown in Figure 6 and Figure 5 , the connecting part 7 further comprises a spring limiting part 73 for limiting the spring of the spring clamping jaw 8; the spring limiting part 73 comprises a vertical wall 731 extending from the mounting ring 6 and two oppositely arranged half shafts 732 provided on the top of the vertical wall 731, and a mounting opening is left between the two half shafts 732, the spring of the spring clamping jaw 8 is arranged at the end of the spring clamping jaw 8, and the spring is arranged between the two half shafts 732. During installation, one end of the spring is sleeved on one of the half shafts 732 from the mounting opening, then the spring is compressed, the other end of the spring is sleeved on the other half shaft 732, and after the spring recovers, the two ends are limited by the two half shafts 732.

[0106] Further, the end of the spring wire is bent downward to abut against the inner side of the vertical wall 731 to limit the rotation of the spring in the circumferential direction.

[0107] In some embodiments, as shown in Figure 6 Figure 7 The spring limiting portion 73 and the elastic clamping arm 71 are separated by a second separation slot 74.

[0108] Further, the spring limiting portion 73 and the elastic clamping arm 71 extend independently on the mounting ring 6, so that the deformation of the elastic clamping arm 71 does not drive the deformation of the spring limiting portion 73.

[0109] Further, the vertical wall 731 of the spring limiting portion 73 is separated by the second separation slot 74 to form the elastic clamping arm 71 inside the vertical wall 731.

[0110] Further, the spring limiting portion 73 and the elastic clamping arm 71 are integrally formed on the mounting ring 6.

[0111] In some embodiments, as shown in Figure 5 The side of the detection body 110 includes at least a first side, a second side, and a third side, the first side and the second side are oppositely arranged, and the third side is between the first side and the second side; the first side and the second side are respectively rotationally connected to the mounting assembly 120, and the button 11 is arranged on the third side, so that when the detection body 110 is adjusted to the second orientation, the button 11 is exposed.

[0112] Further, the button 11 is arranged at a middle position between the first side and the second side, so that when the detection body 110 is adjusted to the second orientation, the button 11 is more exposed to facilitate the user to press the button 11.

[0113] In some embodiments, as shown in Figures 13-18 The detection body 110 includes an induction cover 3 arranged to face the induction area, and the back of the induction cover 3 is integrally formed with a lens assembly 32, and the lens assembly 32 includes a plurality of lens units 321. Benefited from the arrangement of the button 11 on the side of the detection body 110, the front of the detection body 110 does not need to be arranged with the button 11, which ensures the integrity of the induction cover 3, and the lens assembly 32 located on the back of the induction cover 3 can fully utilize the area of the induction cover 3, so that the area of the lens assembly 32 is increased, thereby facilitating to improve the induction range and induction sensitivity. Specifically:

[0114] The lens assembly 32 includes a plurality of lens units 321, which can be Fresnel lenses or small convex lenses. In Figure 14 , Figure 15 ​, Figure 17 In the illustrated embodiment, the lens unit 321 is configured as a Fresnel lens. Figure 18 In the illustrated embodiment, the lens unit 321 is constructed as a small convex lens. The lens unit 321 is used to focus infrared light onto the pyroelectric sensing element 21 inside the detection body 110. When a human body moves within the sensing area, the lens unit 321 focuses the infrared light generated by the human body onto the pyroelectric sensing element 21. The pyroelectric sensing element 21 responds to changes in infrared light by generating a voltage level change, and the processing module determines that someone is in the sensing area based on this voltage level change. Because the sensing cover 3 does not require a button 11, its integrity is ensured, allowing sufficient space on the back of the sensing cover 3 to house the lens assembly 32. This increases the area of ​​the lens assembly 32, thereby increasing the infrared sensing range. Furthermore, the increased area of ​​the lens assembly 32 allows for the placement of more lens units 321 and / or larger-area lens units 321, thereby improving the sensing resolution and / or sensing distance, and enhancing the sensitivity of the detection device 100.

[0115] In some embodiments, the pyroelectric sensing element 21 employs a quaternary PIR pyroelectric sensor to improve infrared sensing resolution. For example, the pyroelectric sensing element 21 specifically employs a pyroelectric infrared sensor, model L142F7, from Wuxi Ziliang Sensing Technology Co., Ltd.

[0116] In some embodiments, the radar module is a 24GHz radar module. For example, the radar module specifically uses a 24GHz millimeter-wave sensor, model MRS262, from Zhenghe Microchip Technology Co., Ltd.

[0117] Furthermore, the center of the lens assembly 32 is located in the middle region of the sensing cover 3, which helps to increase the area of ​​the lens assembly 32. A first circuit board 4 is disposed inside the detection body 110, and a pyroelectric sensing element 21 is disposed on the first circuit board 4 facing the sensing cover 3. The pyroelectric sensing element 21 is located at the center corresponding to the center of the lens assembly 32. The middle region of the sensing cover 3 can be understood as a region near the center of the sensing cover 3. The center of the lens assembly 32 can be directly opposite to the center of the sensing cover 3, or it can be slightly offset. As long as the center of the lens assembly 32 is located in the region near the center of the sensing cover 3, it is within the scope of protection of this invention.

[0118] In one embodiment, the center of the lens assembly 32 is positioned directly opposite the center of the sensing cover 3, which helps to increase the area of ​​the lens assembly 32.

[0119] In some embodiments, such as Figure 15 , Figure 17 and Figure 18As shown, the coverage area of the lens assembly 32 is greater than 40% of the coverage area of the induction cover 3, so as to improve the infrared induction range. The lens assembly 32 can be provided with a larger number of lens units 321 and / or a larger area of lens units 321, so as to improve the induction resolution and / or the induction distance, and thus improve the sensitivity of the detection device 100. The coverage area of the lens assembly 32 can be understood as the area of the projection figure formed by the projection of the lens assembly 32 on the plane where the first circuit board 4 is located. The coverage area of the induction cover 3 can be understood as the area of the projection figure formed by the projection of the induction cover 3 on the plane where the first circuit board 4 is located. In an exemplary embodiment, as shown in Figure 15 the coverage area of the lens assembly 32 is equal to 55% of the coverage area of the induction cover 3. In another embodiment, as shown in Figure 17 the coverage area of the lens assembly 32 is equal to 55% of the coverage area of the induction cover 3.

[0120] Further, as shown in Figure 14 and Figure 18 the detection main body 110 further comprises a housing 1, one side of the housing 1 is open, the induction cover 3 is arranged on the open side of the housing 1, and the back of the induction cover 3 is provided with a clamping ring 33. The clamping ring 33 is arranged at a position close to the edge of the induction cover 3 and surrounds the induction cover 3. The clamping ring 33 is embedded in the housing 1. A plurality of buckles 331 are arranged at intervals on the outer side of the clamping ring 33. The sidewall of the housing 1 is provided with a clamping position 141 corresponding to the buckles 331. The buckles 331 are clamped in the clamping position 141, so as to fix the induction cover 3 to the housing 1.

[0121] Further, as shown in Figure 14 the sidewall of the housing 1 is provided with a first positioning rib 142 on both sides of the key 11. The first positioning rib 142 extends vertically. The clamping ring 33 is provided with a first positioning groove 332 matched with the first positioning rib 142. When the induction cover 3 is installed on the housing 1, the first positioning rib 142 is embedded in the first positioning groove 332, so as to achieve circumferential positioning of the induction cover 3.

[0122] In addition, the first positioning rib 142 is also used for positioning the first circuit board 4. As shown in Figure 22 the edge of the first circuit board 4 is provided with a third positioning groove 41 at a position corresponding to the first positioning rib 142. The side of the first circuit board 4 opposite to the third positioning groove 41 is provided with a fourth positioning groove 42. The inner wall of the housing 1 is provided with a second positioning rib 143 matched with the fourth positioning groove 42. The first positioning rib 142 is embedded in the third positioning groove 41, and the second positioning rib 143 is embedded in the fourth positioning groove 42, so as to position the first circuit board 4 by the housing 1.

[0123] Further, the isolation shell 5 is provided with a second positioning groove 53 at a position corresponding to the first positioning rib 142 and the second positioning rib 143, and the first positioning rib 142 and the second positioning rib 143 are embedded in the second positioning groove 53 respectively, so as to position the isolation shell 5 and the shell 1.

[0124] Further, the clamping ring 33 is recessed inward at a position corresponding to the key 11 to form a pressing recess 333, and the pressing recess 333 is used to provide a pressing space for the key 11, so that the key 11 can be pressed smoothly.

[0125] Further, as shown in Figure 15 , the area surrounded by the clamping ring 33 is set as a lens arrangement area, and the coverage area of the lens assembly 32 is greater than 60% of the coverage area of the lens arrangement area. In Figure 15 and Figure 17 the embodiments shown, the coverage area of the lens assembly 32 is 67% of the coverage area of the lens arrangement area.

[0126] In some embodiments, as shown in Figure 11 , Figure 13 , Figure 14 , the second circuit board 22 is further arranged inside the detection body 110, and the second circuit board 22 is arranged on the first circuit board 4, and the second circuit board 22 is provided with a radar module 23, and the radar wave generated by the radar module 23 is transmitted outward through the induction cover 3. Further, the second circuit board 22 is arranged to be raised on the first circuit board 4, so that the distance between the radar module 23 and the induction cover 3 can be adjusted by adjusting the height of the second circuit board 22 being raised, and the performance of the radar module 23 can be improved by reasonably designing the height of the second circuit board 22 being raised. Specifically:

[0127] The applicant finds that the distance L1 between the radar module 23 and the induction cover 3 and the thickness of the induction cover 3 have a greater impact on the performance of the radar module 23, and the second circuit board 22 is raised in the present application, so that the height of the second circuit board 22 can be adjusted, so that the value of L1 can be obtained by test, so that the value of L1 is fixed, and the performance of the radar module 23 is guaranteed.

[0128] Further, the height of the second circuit board 22 being raised is higher than that of the pyroelectric sensing element 21, so as to avoid the radar wave emitted by the radar module 23 from being interfered by the pyroelectric sensing element 21, thereby improving the performance of the radar module 23.

[0129] In some embodiments, the second circuit board 22 can be connected to the first circuit board 4 through the connection of the pin and the female pin; or the first circuit board 4 can first support the second circuit board 22 through the support, and then realize the electrical connection between the two through the flat cable; or the second circuit board 22 is directly welded to the first circuit board 4 through the pin 221, and the second circuit board 22 is supported by the pin 221. In an exemplary embodiment, as shown in Figure 11 and Figure 22 , the lower surface of the second circuit board 22 is welded with the pin 221, the pin 221 has a plastic support block, the first circuit board 4 is provided with a plug-in hole, the pin 221 is inserted into the plug-in hole and is welded and fixed to the first circuit board 4, and the lower surface of the plastic support block abuts against the upper surface of the first circuit board 4, so as to control the distance between the second circuit board 22 and the first circuit board 4 through the plastic support block, thereby ensuring the performance of the radar module 23 in the batch production process. In addition, the first circuit board 4 supports and positions the second circuit board 22 through the pin 221, so that the structure is more compact, which is conducive to reducing the volume of the detection main body 110 and adapting to the miniaturization trend.

[0130] In Figure 18 , the lens unit 321 is configured as a small convex lens, that is, a plurality of small convex lenses are spliced with each other to form the lens assembly 32. Since the center of the small convex lens is thick and the edge is thin, the thickness of the lens assembly 32 changes greatly and is difficult to control. Since the radar wave passes through the lens assembly 32 and is emitted outward, the great change in the thickness of the lens assembly 32 causes the great change in the thickness of the induction cover 3, thereby affecting the detection performance of the radar module 23.

[0131] To solve the adverse effects of the great change in the thickness of the small convex lens on the radar module 23, in some embodiments, as shown in Figure 14 , Figure 15 and Figure 17 , the lens unit 321 is configured as a Fresnel lens. The Fresnel lens has the characteristics of being super-thin and having uniform thickness, so that the thickness of the induction cover 3 is easy to control, which is conducive to improving the performance of the radar module 23.

[0132] The principle of the Fresnel lens is shown in Figure 16 . The effective refraction of the plano-convex lens occurs on its convex surface, and the curvature of the convex surface can be reserved. The internal material without optical effect is deleted, and the convex surface producing optical effect is cut into a circular segment and translated to the bottom to form a ring-shaped tooth 322, thereby forming a Fresnel lens. The Fresnel lens can be regarded as a thinned convex lens. As can be seen from the principle, each ring-shaped tooth 322 of the Fresnel lens retains the corresponding curvature characteristics of the convex lens, but is thinner.

[0133] The lens unit 321 of the embodiment of the present application is configured as a Fresnel lens, so that the thickness of the lens assembly 32 is less changed and is easy to control, so that the researchers can control the thickness of the lens assembly 32 at an optimal value, thereby improving the detection performance of the radar module 23.

[0134] In the exemplary embodiment, the thickness of the induction cover 3 in the area where the Fresnel lens is located is 0.55mm-0.7mm.

[0135] The Fresnel lens includes an equal-pitch Fresnel lens and an equal-height Fresnel lens. In an embodiment, the equal-pitch Fresnel lens is used, which can be understood as that the pitches between two adjacent annular teeth 322 are equal, and the annular teeth 322 are uniformly spaced. This arrangement has the advantages of convenient design and processing, and the number of the annular teeth 322 can be designed to be larger. In other embodiments, the equal-height Fresnel lens can also be used, which can be understood as that the heights of two adjacent annular teeth 322 are equal.

[0136] In some embodiments, in order to reduce the processing difficulty, the curved surface of the annular tooth 322 of the Fresnel lens can be simplified as a conical surface, but the optical performance of the simplified Fresnel lens is reduced.

[0137] As shown in Figure 9 , the detection body 110 rotates in the mounting ring 6 to adjust the orientation. Since the mounting ring 6 is embedded in the ceiling plate 200, if the position of the radar module 23 is not properly set, the radar waves can be easily blocked by the mounting ring 6 and the ceiling plate 200 during the rotation of the detection body 110, which causes the detection performance of the radar module 23 to be greatly reduced. For example Figure 9 , when the detection body 110 is adjusted to the second orientation, at this time, the left half of the detection body 110 is located above the mounting ring 6, and if the radar module 23 is set in the left half, the radar waves emitted by the radar module 23 can be easily blocked by the mounting ring 6 and the ceiling plate 200.

[0138] To avoid the above situation, in some embodiments, as shown in Figure 11 , wherein, Figure 11 is a sectional view of the detection device 100 at Figure 9 the viewing angle. The side surface of the detection body 110 includes a third side provided with the key 11; the second circuit board 22 is arranged at a position deviated from the center of the first circuit board 4, and the second circuit board 22 is located between the center of the first circuit board 4 and the third side; as shown in Figure 7 and Figure 8 , a limiting structure 75 is arranged at the part where the detection body 110 is connected to the mounting assembly 120, and the limiting structure 75 can limit the rotation angle of the detection body 110 to be less than 15° when rotating towards the third side.

[0139] That is, in Figure 11 In this configuration, the limiting structure 75 restricts the counterclockwise rotation angle of the detection body 110 to no more than 15°, positioning the radar module 23 on the side of the detection body 110 biased towards the button 11. This prevents the radar module 23 from rotating above the mounting ring 6, thus avoiding radar wave obstruction. Furthermore, the detection body 110 can rotate a relatively large angle (at least 30°) towards the side away from the button 11. Figure 11 The detection body 110 can rotate clockwise by a large angle, ensuring a large angle adjustment range for the detection device 100. In addition, the detection body 110 can rotate by a large angle toward the side away from the button 11, so that the limiting structure 75 does not restrict the exposure of the button 11, ensuring that the button 11 can be pressed.

[0140] Furthermore, such as Figure 7 As shown, a limiting notch 751 is provided at the bottom of the snap-fit ​​shaft 72. The limiting notch 751 extends along the axial direction of the snap-fit ​​shaft 72, and the limiting notch 751 constitutes the limiting structure 75. Figure 8 and Figure 9 As shown, a limiting protrusion 122 is provided inside the snap-fit ​​groove 12. The limiting protrusion 122 is located at the bottom of the snap-fit ​​groove 12 and extends along the axial direction of the snap-fit ​​groove 12. When the snap-fit ​​shaft 72 is snapped into the snap-fit ​​groove 12, the limiting protrusion 122 is embedded in the limiting notch 751. During the rotation of the detection body 110, the two sides of the limiting protrusion 122 abut against the two sides of the limiting notch 751 in sequence to limit the rotation angle of the detection body 110.

[0141] In other embodiments, such as Figure 10 As shown, this embodiment is similar to Figure 9 The difference in the illustrated embodiment is that the detection body 110 can rotate to a 35° angle towards both the third and fourth sides, with the fourth side opposite to the third side. In this embodiment, the width of the limiting protrusion 122 is narrowed, allowing it to move more freely within the limiting notch 751. This relaxes the restriction on the rotation angle of the detection body 110 imposed by the limiting structure 75, enabling the detection body 110 to rotate to a 35° angle towards both the third and fourth sides. Furthermore, to prevent the radar module 23 from rotating above the mounting ring 6 and causing radar wave obstruction, a warning message is printed on the lower surface of the mounting ring 6 in this embodiment, reminding the user that the rotation angle towards the third side should not be too large.

[0142] In some embodiments, such as Figure 11As shown, the bottom of the shell 1 is open, and the induction cover 3 is arranged on the bottom of the shell 1 to form a containing cavity with the shell 1, and the first circuit board 4 and the second circuit board 22 are contained in the containing cavity.

[0143] In some embodiments, as shown in Figure 11 and Figure 22 As shown, the first circuit board 4 is arranged inside the detection body 110, and the edge of the first circuit board 4 is provided with an electronic switch 43 at the position corresponding to the key 11. The trigger rod of the electronic switch 43 can be pressed to trigger the electronic switch 43. The trigger rod protrudes laterally from the first circuit board 4, and the key 11 abuts against the trigger rod. The trigger rod of the key 11 protrudes laterally from the first circuit board 4 to adapt to the key 11 arranged on the side of the detection body 110, and the pressing feeling of the key 11 is improved.

[0144] Further, as shown in Figure 23 The shell 1 is provided with a split seam 15, and the three sides of the split seam 15 are communicated to form the key 11 in the surrounding area of the split seam 15. The side of the split seam 15 not communicated forms a connecting arm, and the key 11 is integrally connected to the side wall of the shell 1 through the connecting arm. As shown in Figure 11 The key 11 extends a trigger column on the back surface, and the trigger column abuts against the trigger rod of the electronic switch 43 to reduce the stroke of the key 11 triggering the electronic switch 43. Since the key 11 deforms to generate a restoring force by means of the connecting arm, reducing the pressing stroke is conducive to reducing the pressing force required for triggering the electronic switch 43. When the key 11 is pressed, reducing the pressing force can avoid the detection body 110 from rotating under the action of the pressing force, which is more suitable for the hidden key 11 provided by the application.

[0145] In some embodiments, which are not shown in the drawings, the difference between this embodiment and the above embodiments is that the detection body 110 provided by this embodiment only has a radar detection function and does not have an infrared induction function. The pyroelectric induction element 21 is not arranged inside the detection body 110, and the lens assembly 32 is not arranged on the back surface of the induction cover 3. The second circuit board 22 is arranged inside the detection body 110, and the radar module 23 is arranged on the second circuit board 22 facing the induction area. The detection body 110 only detects whether a human body exists by means of the radar module 23. Further, the induction cover 3 is arranged on the bottom of the shell 1 to form a containing cavity with the shell 1, and the second circuit board 22 is contained in the containing cavity. The radar module 23 is arranged at the position corresponding to the center of the induction cover 3.

[0146] In the prior art, the infrared sensing module and the radar module of the detection device are arranged side by side without interfering with each other, which causes the front of the detection device to be divided into an infrared sensing surface and a radar sensing surface. The infrared sensing surface and the radar sensing surface are independently distributed on the front of the detection device. The space of the front of the detection device is limited, and the areas occupied by the two are relatively small. Such design is not conducive to the miniaturization of the detection device, and affects the detection performance of the detection device.

[0147] To solve the above problems, in some embodiments, as shown in Figures 1-25 The detection device 100 includes a shell 1, a sensing cover 3, and a cover arranged on an open side of the shell 1. An inner surface of the sensing cover 3 is integrally formed with a lens assembly 32. A pyroelectric sensing element 21 is arranged inside the shell 1. The pyroelectric sensing element 21 is provided with an infrared receiving surface 211 facing the lens assembly 32, and the infrared receiving surface 211 is used for receiving infrared light. A radar module 23 is arranged inside the shell 1. The radar module 23 is provided with a transmitting antenna 231 and a receiving antenna 232 facing the sensing cover 3. As shown in Figure 11 and Figure 14 The transmitting antenna 231 and the receiving antenna 232 are located within the coverage range of the lens assembly 32, so that the radar waves generated by the radar module 23 are transmitted outside through the lens assembly 32.

[0148] The transmitting antenna 231 and the receiving antenna 232 of the radar module 23 are arranged within the coverage range of the lens assembly 32, so that the infrared sensing surface and the radar sensing surface are overlapped and distributed on the front of the detection device 100. The infrared sensing surface and the radar sensing surface can both occupy a larger area of the sensing cover 3, and the area of the lens assembly 32 can be increased, thereby improving the infrared sensing sensitivity. Moreover, due to the overlapping of the infrared sensing surface and the radar sensing surface, the area ratio of the two is larger, so that the detection device 100 can further reduce the volume while meeting the detection performance, and realize the miniaturization of the volume.

[0149] The shell 1 has at least one open side. In an exemplary embodiment, the bottom of the shell 1 is open to form the open side. The sensing cover is arranged on the open side, and the sensing cover and the shell form a containing cavity.

[0150] The infrared sensing surface can be understood as a surface formed by the lens assembly 32 in the corresponding area of the sensing cover 3. The radar sensing surface can be understood as a surface formed by the sensing cover 3 in the area through which the radar waves pass.

[0151] The lens assembly 32 is composed of a plurality of lens units 321. The lens units 321 can be Fresnel lenses or small convex lenses. In Figure 14 ,Figure 15 And Figure 17 In the embodiment shown in FIG. 32, the lens unit 321 is configured as a Fresnel lens. In the embodiment shown in FIG. 33, the lens unit 321 is configured as a small convex lens. In the embodiment shown in FIG. 34, a plurality of small convex lenses are spliced together to form the lens assembly 32. Since the center of the small convex lens is thicker and the edge is thinner, the thickness of the lens assembly 32 varies greatly and is difficult to control. Since the radar wave passes through the lens assembly 32 and is emitted outward, if the thickness of the lens assembly 32 varies greatly, the thickness of the induction cover 3 will also vary greatly, thereby affecting the performance of the radar module 23. Figure 18 Figure 18 In order to reduce the influence of the lens assembly 32 on the performance of the radar module 23, in the preferred embodiment of the present application, as shown in FIG. 31, the lens unit 321 includes a plurality of concentric annular teeth 322, so that the lens assembly 32 is adapted to pass through the radar wave. Further, the lens unit 321 is configured as a Fresnel lens. The technical details of the Fresnel lens have been described in detail above, and will not be repeated here. The Fresnel lens can be regarded as a thinned convex lens. According to its principle, each annular tooth 322 of the Fresnel lens retains the corresponding curvature characteristics of the convex lens, but is thinner. The present application configures the lens unit 321 as a Fresnel lens, so that the thickness of the lens assembly 32 varies less and is easy to control, so that the researchers can control the thickness of the lens assembly 32 to a better value, thereby avoiding the influence of the lens assembly 32 on the performance of the radar module 23. Thus, the lens assembly 32 is more suitable for the structure provided by the present application, in which the transmitting antenna 231 and the receiving antenna 232 are arranged within the coverage range of the lens assembly 32.

[0152] In order to reduce the influence of the lens assembly 32 on the performance of the radar module 23, in the preferred embodiment of the present application, as shown in FIG. 31, the lens unit 321 includes a plurality of concentric annular teeth 322, so that the lens assembly 32 is adapted to pass through the radar wave. Further, the lens unit 321 is configured as a Fresnel lens. The technical details of the Fresnel lens have been described in detail above, and will not be repeated here. The Fresnel lens can be regarded as a thinned convex lens. According to its principle, each annular tooth 322 of the Fresnel lens retains the corresponding curvature characteristics of the convex lens, but is thinner. The present application configures the lens unit 321 as a Fresnel lens, so that the thickness of the lens assembly 32 varies less and is easy to control, so that the researchers can control the thickness of the lens assembly 32 to a better value, thereby avoiding the influence of the lens assembly 32 on the performance of the radar module 23. Thus, the lens assembly 32 is more suitable for the structure provided by the present application, in which the transmitting antenna 231 and the receiving antenna 232 are arranged within the coverage range of the lens assembly 32. Figures 14-16

[0153] Thanks to the fact that the infrared sensing surface and the radar sensing surface are distributed on the front face of the detection device 100 in an overlapping manner, the lens assembly 32 can occupy a larger area of the induction cover 3. In some embodiments, the coverage area of the lens assembly 32 is greater than 40% of the coverage area of the induction cover 3. In an exemplary embodiment, as shown in FIG. 35, the coverage area of the lens assembly 32 is equal to 55% of the coverage area of the induction cover 3. In another embodiment, as shown in FIG. 36, the coverage area of the lens assembly 32 is equal to 55% of the coverage area of the induction cover 3. Figure 15 Figure 17

[0154] In some embodiments, as shown in FIGS. 37 and 38, each annular tooth 322 of the same lens unit 321 is arranged in a layer-by-layer surrounding manner from inside to outside, and the number of layers of the annular teeth 322 is greater than or equal to 4 layers. Among them, as shown in FIG. 37, the number of layers of the annular teeth 322 is equal to 4 layers. As shown in FIG. 38, the number of layers of the annular teeth 322 is equal to 5 layers. Figure 15 Figure 17 Figure 16 ​​​​​​It can be seen that the more layers of the annular teeth 322, the smaller the thickness change of the lens unit 321, but the higher the processing precision requirement. The number of layers of the annular teeth 322 is designed to be greater than 4 in the present application, so as to reduce the thickness change of the lens unit 321, and make the lens assembly 32 have less influence on the performance of the radar module 23.

[0155] In an embodiment, as shown in Figure 15 the lens assembly 32 includes one first lens unit 321 in the center, eight second lens units 321 surrounding the first lens unit 321, sixteen third lens units 321 surrounding the second lens units 321, and twenty fourth lens units 321 surrounding the third lens units 321. Among them, the eight second lens units 321 are uniformly distributed along the circumferential direction and spliced into an annular shape, the sixteen third lens units 321 are uniformly distributed along the circumferential direction and spliced into an annular shape, and the twenty fourth lens units 321 are uniformly distributed along the circumferential direction and spliced into an annular shape. The periphery of the first lens unit 321 is spliced with the eight second lens units 321, the periphery of the eight second lens units 321 is spliced with the sixteen third lens units 321, and the periphery of the sixteen third lens units 321 is spliced with the twenty fourth lens units 321.

[0156] Further, as shown in Figure 15 the center of the annular teeth of the first lens unit 321 is located at the center position of the first lens unit 321, and the centers of the annular teeth of the second lens unit 321, the third lens unit 321 and the fourth lens unit 321 are respectively located at the side away from the center of the lens assembly 32.

[0157] In another embodiment, as shown in Figure 17 the difference between the present embodiment and the embodiment shown in Figure 15 the lens assembly 32 includes one first lens unit 321 in the center, eight second lens units 321 surrounding the first lens unit 321, twelve third lens units 321 surrounding the second lens units 321, and sixteen fourth lens units 321 surrounding the third lens units 321. Among them, the eight second lens units 321 are uniformly distributed along the circumferential direction and spliced into an annular shape, the twelve third lens units 321 are uniformly distributed along the circumferential direction and spliced into an annular shape, and the sixteen fourth lens units 321 are uniformly distributed along the circumferential direction and spliced into an annular shape. The periphery of the first lens unit 321 is spliced with the six second lens units 321, the periphery of the six second lens units 321 is spliced with the twelve third lens units 321, and the periphery of the twelve third lens units 321 is spliced with the sixteen fourth lens units 321.

[0158] Further, as shown in Figure 17 the center of the annular tooth of the first lens unit 321 is located at the center of the first lens unit 321, the center of the annular tooth of the second lens unit 321 and the third lens unit 321 is located at the side of the respective lens unit 321 away from the center of the lens assembly 32, and the center of the annular tooth of the third lens unit 321 is located at the side of the first lens unit 321 close to the center of the lens assembly 32.

[0159] In some embodiments, as shown in Figure 14 and Figure 21 the pyroelectric sensing element 21 is arranged at a position corresponding to the center of the lens assembly 32, and the radar module 23 is arranged away from the center of the lens assembly 32.

[0160] In some embodiments, as shown in Figure 11 and Figure 19 a side of the sensing cover 3 facing the sensing area is provided with a sensing surface 31, and the sensing surface 31 is configured as a convex arc surface to increase the infrared sensing range.

[0161] Further, the height of the convex sensing surface 31 is H1, and the diameter of the sensing surface 31 is Φ1, and Φ1 satisfies the relationship H1 / Φ1≤0.15, so as to control the height of the convex sensing surface 31 not to be too high. As shown in Figure 11 since the radar module 23 is arranged at a position away from the center of the lens assembly 32, if the height of the convex sensing surface 31 is higher, the inclination of the sensing surface 31 relative to the radar module 23 is greater, the difference in wall thickness of the sensing cover 3 through which the radar wave passes is greater, the distance L1 between the radar module 23 and the sensing cover 3 also changes greatly, which will affect the performance of the radar module 23.

[0162] Therefore, the height of the convex sensing surface 31 is controlled to reduce the difference in wall thickness of the sensing cover 3 through which the radar wave passes, and the distance L1 between the radar module 23 and the sensing cover 3 is more easily controlled, thereby reducing the impact on the radar module 23.

[0163] As shown in Figure 19 the sensing surface 31 includes a circular arc surface 311 and a fillet surface 312 arranged around the circular arc surface 311, and the fillet surface 312 is used to connect the circular arc surface 311 and the side surface.

[0164] In some embodiments, as shown in Figure 11 the transmitting antenna 231 is arranged to face a first direction, and in the first direction, the distance between the lens assembly 32 and the transmitting antenna 231 is L1, and L1 satisfies the relationship 4mm≤L1≤10mm, so as to make the performance of the radar module 23 better. In an exemplary embodiment, L1=6mm.

[0165] In some embodiments, as shown in Figure 11 and Figure 22 , the shell 1 and the induction cover 3 form a containing cavity, inside which a first circuit board 4 carrying the pyroelectric induction element 21 and a second circuit board 22 carrying the radar module 23 are arranged. The second circuit board 22 is arranged on the first circuit board 4. The second circuit board 22 is raised so that the distance between the radar module 23 and the induction cover 3 can be adjusted by adjusting the height of the second circuit board 22. By reasonably designing the height of the second circuit board 22, the performance of the radar module 23 can be improved. The technical details of the second circuit board 22 are described in detail above, and will not be repeated here.

[0166] Further, the second circuit board 22 is electrically connected to the first circuit board 4 by a pin 221, and the pin 221 raises the second circuit board 22. The technical details of the pin 221 are described in detail above, and will not be repeated here.

[0167] As shown in Figure 11 , in the direction perpendicular to the first circuit board 4, the distance between the second circuit board 22 and the first circuit board 4 is L2, and L2 satisfies the relationship: 4mm≤L2≤8mm. Since the shell of the pyroelectric induction element 21 is made of metal, setting L2≥4mm can avoid the pyroelectric induction element 21 interfering with the radar wave. Setting L2≤8mm can avoid the second circuit board 22 blocking the infrared light collected by the lens unit 321, causing the infrared induction range to become smaller. In an exemplary embodiment, L2=6.1mm.

[0168] The direction perpendicular to the first circuit board 4 is parallel to the first direction.

[0169] Further, as shown in Figure 21 , in the direction parallel to the first circuit board 4, the distance between the second circuit board 22 and the infrared receiving surface 211 is L3, and L3 satisfies the relationship: 3mm≤L3≤8mm. Setting L3≥3mm can avoid the second circuit board 22 blocking the infrared light collected by the lens unit 321, causing the infrared induction range to become smaller. Setting L3≤8mm can prevent the radar module 23 from being too close to the side wall of the shell 1, avoiding the radar wave emitted by the radar module 23 being blocked by the shell 1 and the mounting ring 6, causing the radar induction range to become smaller. In an exemplary embodiment, L3=6mm.

[0170] In some embodiments, as shown in Figure 21 and Figure 22As shown, one side of the second circuit board 22 facing the induction cover 3 is provided with a brightness induction piece 222 for inducing ambient light, which is transmitted through the induction cover 3 to the brightness induction piece 222. The brightness induction piece 222 is arranged on the side of the second circuit board 22 close to the pyroelectric induction element 21, so that the induction result of the brightness induction piece 222 is more accurate. Further, the brightness induction piece 222 is located in a corner area, i.e. the brightness induction piece 222 is located in the corner area on the side of the second circuit board 22 close to the pyroelectric induction element 21, so as to avoid the brightness induction piece 222 from blocking the infrared light converged by the lens unit 321, thereby reducing the infrared induction range. The corner area can be understood as the corner of the outermost edge of the second circuit board.

[0171] Further, the side of the second circuit board 22 facing the pyroelectric induction element 21 is provided with a protruding portion, which is located at the corner of the second circuit board 22, and the brightness induction piece 222 is arranged on the protruding portion.

[0172] In an exemplary embodiment, the brightness induction piece 222 is a photosensitive triode.

[0173] The existing top-mounted detection device generally has a weak current board and a strong current board inside. The strong current board is fixedly connected to the shell, and the weak current board is supported by the strong current board. An electronic switch is arranged on the front surface of the weak current board, and the electronic switch receives a pressing force perpendicular to the weak current board. The key is generally arranged on the front surface of the detection main body, so that the key applies a pressing force to the electronic switch, which is perpendicular to the weak current board. When the electronic switch receives a pressing force parallel to the weak current board, the weak current board will be displaced in a direction parallel to the weak current board, which will cause the weak current board and the strong current board to be misaligned, resulting in unstable connection between the two. Therefore, the key is generally not arranged on the side surface of the detection main body, so as to avoid the electronic switch receiving a pressing force parallel to the weak current board. However, arranging the key on the front surface of the detection main body will occupy the space on the front surface, which will affect the detection performance of the detection device.

[0174] To solve the problem that the electronic switch of the detection device in the prior art cannot receive a pressing force parallel to the weak current board, in some embodiments, as shown in Figure 11 , Figure 22 and Figure 24 , the detection device 100 comprises a shell 1 and a first circuit board 4 arranged inside the shell 1, and the first circuit board 4 is provided with an induction module 2. The first circuit board 4 is divided into a strong current area 441 carrying a strong current circuit and a weak current area 442 carrying a weak current circuit. The strong current area 441 and the weak current area 442 are separated by an insulating area 443, and the induction module 2 is arranged in the weak current area 442. The weak current area 442 of the first circuit board 4 is provided with an electronic switch 43, and the shell 1 is provided with a key 11 for triggering the electronic switch 43.

[0175] The electronic switch 43 is directly arranged on the strong electric plate in the application, avoiding the pressing force acting on the weak electric plate. The strong electric plate is directly fixed on the shell, so that the electronic switch 43 can receive the lateral pressing force. The key 11 is arranged on the side of the detection main body 110, so that the key 11 does not occupy the space on the front of the detection main body 110, and the sensing performance of the detection device 100 is not affected. In addition, the strong electric region 441 and the weak electric region 442 are separated by the insulation region 443, so that the weak electric region 442 has high safety, the electronic switch 43 in the weak electric region 442 does not involve the risk of electric shock, and the structure of the key 11 can be simplified.

[0176] The induction module 2 includes the pyroelectric induction element 21, the second circuit board 22, and the radar module 23 arranged on the second circuit board 22. The insulation region 443 can be understood as a region without electricity, for example, the insulation region 443 is a blank region on the first circuit board 4 without covering the copper plate and without welding the pins of the electronic element. In an exemplary embodiment, as shown in Figure 24 The weak electric region 442 and the strong electric region 441 are represented by dashed boxes, wherein the left dashed box is the weak electric region 442, and the right dashed box is the strong electric region 441. The insulation region 443 is between the left dashed box and the right dashed box. The strong electric region 441 is provided with a wiring terminal connected to household alternating current, and the weak electric region 442 is provided with the induction module 2, the electronic switch 43, the processor, the communication unit, etc.

[0177] In some embodiments, as shown in Figure 23 The side wall of the shell 1 is divided by a division slot 15, three sides of the division slot 15 are communicated, to form the key 11 in the surrounding area of the division slot 15, and the side of the division slot 15 not communicated forms a connecting arm, and the key 11 is integrally connected to the side wall of the shell 1 through the connecting arm. The weak electric region 442 is separated from the strong electric region 441 by the insulation region 443, so that the weak electric region 442 has no risk of electric shock, and the key 11 is divided and formed by the division slot 15.

[0178] Further, the three sides of the division slot 15 that are communicated with each other form a 270° circular arc, to form a circular key 11 inside the division slot 15.

[0179] In some embodiments, a transformer 45 spans the insulation region 443, one end of the transformer 45 is welded to the strong electric region 441, and the other end is welded to the weak electric region 442.

[0180] Further, as shown in Figure 24As shown, the distance between the strong electric region 441 and the weak electric region 442 is greater than or equal to 3mm, so as to realize the electrical isolation of the strong electric region 441 and the weak electric region 442, and eliminate the risk of electric shock of the weak electric region 442.

[0181] In some embodiments, as shown in Figure 22 and Figure 11 As shown, the electronic switch 43 is arranged at the edge of the first circuit board 4, and the trigger rod of the electronic switch 43 protrudes laterally from the first circuit board 4. The button 11 presses the trigger rod laterally to trigger the electronic switch 43. Benefited from the arrangement of the electronic switch 43 on the strong electric board which is fixedly installed on the shell 1, the electronic switch 43 can receive the lateral pressing force. In the embodiments of the present application, the button 11 is arranged on the side of the detection body 110, so that the button 11 does not occupy the space on the front of the detection body 110, and the sensing performance of the detection device 100 is not affected.

[0182] In some embodiments, as shown in Figure 14 As shown, the inner surface of the sensing cover 3 is integrally formed with a Fresnel lens; the sensing module 2 comprises a pyroelectric sensing element 21 arranged on the side of the first circuit board 4 facing the sensing cover 3. In the embodiments of the present application, the electronic switch 43 is arranged on the strong electric board, so that the electronic switch 43 can receive the lateral pressing force. In the embodiments of the present application, the button 11 is arranged on the side of the detection body 110, so as to ensure the integrity of the sensing cover 3 and provide sufficient space for arranging the lens assembly 32 on the sensing cover 3, thereby improving the sensing performance of the pyroelectric sensing element 21.

[0183] In some embodiments, the shell 1 is made of PC material and is injection molded. PC material has good flame retardant performance. In order to ensure the optical performance of the Fresnel lens, the sensing cover 3 is made of HDPE material and is injection molded. However, the flame retardant performance of HDPE material is not good, and if the sensing cover 3 is burned, the first circuit board 4 will be damaged. In order to improve the fireproof performance of the detection device 100, as shown in Figure 13 and Figure 14 As shown, the sensing cover 3 and the first circuit board 4 are provided with a separation shell 5. The separation shell 5 comprises a hollow part 51 and a shielding part. The shielding part shields the strong electric region 441 of the first circuit board 4, and the hollow part 51 exposes at least part of the weak electric region 442. The separation shell 5 shields the strong electric region 441 of the first circuit board 4 to avoid the strong electric region 441 being burned. The hollow part 51 exposes at least part of the weak electric region 442 to ensure the normal work of the sensing module 2.

[0184] Further, the induction module 2 further comprises a radar module 23, and the hollow part 51 of the isolation shell 5 exposes the radar module 23 and the pyroelectric induction element 21 to ensure the normal operation of the radar module 23 and the pyroelectric induction element 21.

[0185] Further, as shown in Figure 11 , the distance between the radar module 23 and the first circuit board 4 is greater than the distance between the isolation shell 5 and the first circuit board 4, that is, the radar module 23 is located outside the isolation shell 5, so that the induction performance of the radar module 23 is better. Further, the radar module 23 is arranged on the second circuit board 22, and the second circuit board 22 is arranged on the first circuit board 4, and the distance between the second circuit board 22 and the first circuit board 4 is greater than the distance between the isolation shell 5 and the first circuit board 4.

[0186] Further, as shown in Figure 14 and Figure 20 , the hollow part 51 comprises a circular hole slightly larger than the pyroelectric induction element 21 and a square hole slightly larger than the second circuit board 22, the position of the circular hole corresponds to the pyroelectric induction element 21, and the position of the square hole corresponds to the second circuit board 22, and the circular hole communicates with the square hole.

[0187] As shown in Figure 21 , the communication unit comprises an antenna 46, and the antenna 46 is arranged at the edge of the first circuit board 4, and the isolation shell 5 is cut off at the position corresponding to the antenna 46 to avoid the isolation shell 5 shielding the antenna 46.

[0188] As shown in Figure 13 , Figure 20 and Figure 22 , the isolation shell 5 is distributed with four first through holes 52 near the edge, the first circuit board 4 is provided with a second through hole 47 at the position corresponding to the first through hole 52, the second through hole 47 of the shell 1 is provided with a threaded connecting column 19, and four second screws 471 are respectively connected to the threaded connecting column 19 through the first through hole 52 and the second through hole 47, so that the second screw 471 fixes the isolation shell 5 and the first circuit board 4 to the shell 1.

[0189] In some embodiments, the isolation shell 5 adopts a flame-retardant material, and its melting point is higher than that of the induction cover 3, so as to improve the fireproof performance of the detection device 100. In an exemplary embodiment, the isolation shell 5 adopts PC material (polycarbonate), and the induction cover 3 adopts HDPE material (high density polyethylene).

[0190] In some embodiments, the first circuit board 4 is provided with a light emitting unit 49, which is located within the covering area of the isolation shell 5, and the light emitted by the light emitting unit 49 is transmitted through the isolation shell 5 and the induction cover 3. The isolation shell 5 is made of white translucent PC material to facilitate light transmission.

[0191] In some embodiments, as shown in Figure 24 and Figure 25 , the first circuit board 4 is provided with a wiring member 48 for connecting strong current, which includes a pressing portion 481, the housing 1 extends an extension arm 161, which covers the pressing portion 481, and the extension arm 161 can be pressed to press the pressing portion 481. Wherein, the user can press the extension arm 161 to press the pressing portion 481, which can increase the safety of the wiring.

[0192] Further, as shown in Figure 25 , the wiring member 48 also includes a wire insertion hole 482 corresponding to the pressing portion 481, when the pressing portion 481 is pressed down, the external wire can be inserted into or pulled out of the wire insertion hole 482, when the pressing portion 481 is popped up, the external wire is limited in the wire insertion hole 482. Wherein, the wiring member 48 includes a wiring shell, which is provided with a curved conductive spring 483 inside, the end of the conductive spring 483 is located below the wire insertion hole 482, the pressing portion 481 is columnar, and the bottom of the pressing portion 481 abuts against the conductive spring 483. When the pressing portion 481 is pressed down, the end of the conductive spring 483 rotates downward, the gap between the conductive spring 483 and the inner wall of the wiring shell 485 increases, at this time the external wire can be inserted into the wire insertion hole 482, when the external wire is inserted into the wire insertion hole 482, the pressing portion 481 is popped up, and the external wire is clamped between the conductive spring 483 and the inner wall of the wiring shell 485; when the pressing portion 481 is pressed down again, the gap between the conductive spring 483 and the inner wall of the wiring shell 485 increases, the external wire is no longer clamped by the conductive spring 483, and the external wire can be pulled out of the wire insertion hole 482.

[0193] As shown in Figure 25As shown in the drawings, the extension direction of the extension arm 161 is a second direction, and the wire insertion hole 482 is arranged on the side of the pressing portion 481 facing the second direction; the wire connecting piece 48 is provided with a first hole 484 on the side of the pressing portion 481 away from the second direction, and the first hole 484 is located within the coverage range of the extension arm 161. Further, the wire connecting piece 48 is arranged on the side of the first circuit board 4 away from the induction module 2, and the shell 1 is provided with an operation hole to expose the wire insertion hole 482, so that an external wire can be inserted into the wire insertion hole 482; the wire connecting piece 48 is configured as a wire terminal, and the pressing portion 481 is configured as a columnar structure protruding from the surface of the wire terminal; the wire terminal includes a conductive spring piece 483, and the first hole 484 communicates with the conductive spring piece 483. Wherein, part of the conductive spring piece 483 is located below the first hole 484, and the extension arm 161 covers the first hole 484, so as to avoid the user from contacting the first hole 484 and improve the safety of wire connection.

[0194] Further, as shown in the drawings, Figure 23 and Figure 25 the top of the shell 1 extends downward to form a surrounding wall 162, the surrounding wall 162 surrounds the wire connecting piece 48, and the upper end of the wire connecting piece 48 is embedded in the surrounding wall 162.

[0195] In order to increase the angle adjustment range of the detection device, as shown in the drawings, Figure 2 and Figures 4-9 the detection device 100 provided by the application includes a detection body 110 and a mounting assembly 120, the mounting assembly 120 includes a mounting ring 6 surrounding the detection body 110, a connecting portion 7 extending upward from both sides of the mounting ring 6, and a spring claw 8 arranged at the end of the connecting portion 7; the detection body 110 is rotatably connected to the connecting portion 7 on both sides, and the detection body 110 is provided with a first avoiding portion 171 for avoiding the spring claw 8. Wherein, the detection device 100 provided by the application is suitable for being mounted on a ceiling plate 200, the ceiling plate 200 is provided with a mounting hole 220, the connecting portion 7 is embedded and mounted in the mounting hole 220, the mounting ring 6 is attached to the lower surface of the ceiling plate 200, the spring claw 8 abuts against the upper surface of the ceiling plate 200, and the mounting ring 6 can be horizontally rotated around the mounting hole 220. The detection body 110 rotates in the vertical direction relative to the mounting ring 6, and cooperates with the horizontal rotation of the mounting ring 6, so that the detection body 110 can adjust the detection direction in a conical space, and the angle adjustment range of the detection device 100 is increased.

[0196] It is worth noting that the upper part of the detection body 110 is provided with the first avoiding part 171 for avoiding the spring claw 8, which can maximize the diameter of the lower part of the detection body 110 while ensuring that the spring claw 8 can be put into the mounting hole 220, so that the lower part of the detection body 110 has enough space to accommodate the pyroelectric sensing element 21 and the radar module 23, and the area of the lens assembly 32 can also be larger, which is conducive to improving the detection performance of the detection device 100.

[0197] Further, as shown in Figure 5 and Figure 9 , the side of the detection body 110 includes a first side and a second side arranged opposite to each other, and a third side and a fourth side arranged opposite to each other, and the direction of the first side towards the second side is perpendicular to the direction of the third side towards the fourth side;

[0198] Wherein, the first side and the second side are rotationally connected to the connecting part 7, so that the detection body 110 can rotate based on the connecting part 7, and then adjust the orientation of the detection body 110; the first side and the second side are respectively provided with the first avoiding part 171, and the third side and the fourth side are respectively provided with the second avoiding part 172 for avoiding the mounting ring 6. As shown in Figure 9 , when the detection body 110 rotates in the vertical direction, the upper part of the detection body 110 is easy to collide with the mounting ring 6, and the second avoiding part 172 generates an avoiding space for the upper part of the detection body 110, so that the detection body 110 has a larger rotation angle in the vertical direction, and the angle adjustment range of the detection device 100 is increased.

[0199] Wherein, the first avoiding part 171 and the second avoiding part 172 can be recessed, chamfered or other inwardly retracted structures.

[0200] In an embodiment, as shown in Figure 5 , the shell 1 includes a lower shell 18 and an upper shell 17, the lower shell 18 is configured as a cylinder; the two sides of the lower shell 18 are connected to the connecting part 7, and the upper shell 17 is configured as a square column, the side of the square column is retracted inwardly compared to the side of the cylinder, and the side of the square column forms the first avoiding part 171.

[0201] Further, the first side and the second side of the square column are retracted inwardly compared to the cylinder to form the first avoiding part 171, and the third side and the fourth side of the square column are retracted inwardly compared to the cylinder to form the second avoiding part 172.

[0202] In some embodiments, as shown in Figure 9As shown, the third side of the detection main body 110 is provided with a button 11, when the detection main body 110 is adjusted to face the vertical direction, the button 11 is hidden; when the orientation of the detection main body 110 is adjusted to be inclined to the fourth side, the button 11 is exposed. Wherein, thanks to the first and second avoiding parts 171 and 172 provided on the upper part of the detection main body 110, the diameter of the lower part of the detection main body 110 can be as large as possible, so that the gap between the detection main body 110 and the mounting ring 6 can be controlled to be very small, so as to hide the button 11.

[0203] Further, as shown in Figure 11 and Figure 12 the detection main body 110 further comprises an induction cover 3 and a first circuit board 4, the bottom of the shell 1 is open, the induction cover 3 is arranged on the bottom of the shell 1 to form a containing cavity with the shell 1, and the first circuit board 4 is contained in the containing cavity; the first circuit board 4 is arranged in the lower layer shell 18, and the electronic elements on the upper surface of the first circuit board 4 are at least partially contained in the upper layer shell 17. Wherein, the first circuit board 4 is arranged in the lower layer shell 18, so that the area of the first circuit board 4 is larger, and the first circuit board 4 has sufficient space to arrange the induction module 2. The upper surface of the first circuit board 4 is provided with a power module and a wiring terminal, the wiring terminal is used to connect strong electricity, and the power module converts strong electricity into weak electricity. Wherein, part of the wiring terminal and part of the power module are located inside the upper layer shell 17.

[0204] Further, as shown in Figure 11 the lower surface of the first circuit board 4 is provided with an induction module 2. Wherein, the technical details of the induction module 2 are described in detail above, which will not be repeated here.

[0205] In addition, it should be noted that the above-mentioned embodiments can be combined with each other, and the same or similar concepts or processes may not be described in some embodiments, that is, the technical solutions disclosed in the later embodiments (in the order of the text) should include the technical solutions disclosed in this embodiment and all the technical solutions in the previous embodiments.

[0206] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A detection device, characterized in that, The device includes a mounting assembly and a detection body rotatably connected to the mounting assembly. The mounting assembly is used to mount the device on a mounting surface, and the detection body rotates relative to the mounting assembly to switch between a first orientation and a second orientation. The detection body includes a button disposed on its side. When the mounting component is installed on the mounting surface and the detection body is in the first orientation, the button is hidden. When the mounting component is installed on the mounting surface and the detection body is in the second orientation, the button is exposed.

2. The detection device according to claim 1, characterized in that, The mounting assembly includes a mounting ring for fitting against the mounting surface, and the detection body rotates within the mounting ring to switch between the first orientation and the second orientation.

3. The detection device according to claim 2, characterized in that, The mounting component is embedded in the mounting surface, and the mounting ring has a first surface for conforming to the mounting surface. The first orientation is perpendicular to the first surface, and the second orientation is inclined to the first surface. When the detection body is in the second orientation, the side of the detection body is obliquely exposed to the inside of the mounting ring so that the button is exposed.

4. The detection device according to claim 3, characterized in that, When the detection subject is in the second orientation, the button is fully exposed; the angle between the second orientation and the first orientation is set to be greater than 18°.

5. The detection device according to claim 3, characterized in that, When the detection body is adjusted to the first orientation, the lateral gap between the side of the detection body and the mounting ring is less than 2mm, so that the button is hidden.

6. The detection device according to claim 5, characterized in that, The detection body includes a sensing surface facing the sensing area, and the mounting ring has a second surface facing away from the first surface. When the detection body is in the first orientation, the edge of the sensing surface is recessed into the second surface, or the edge of the sensing surface is flush with the second surface, or the edge of the sensing surface protrudes from the second surface and the protrusion height is less than 4mm. The mounting assembly includes two connecting portions extending from the mounting ring and spring claws disposed at the ends of the connecting portions, and the detection body is rotatably connected to the connecting portions on both sides; The mounting assembly is adapted to be embedded in the ceiling panel. When the mounting assembly is installed in the ceiling panel, the first surface of the mounting ring is in contact with the lower surface of the ceiling panel, and the spring claw abuts against the upper surface of the ceiling panel.

7. The detection device according to claim 2, characterized in that, The detection body has at least a first side, a second side, and a third side, with the first side and the second side being disposed opposite to each other, and the third side being located between the first side and the second side; The first and second sides are rotatably connected to the mounting assembly, and the button is located on the third side so that the button is exposed when the detection body is adjusted to the second orientation. The button is located in the middle between the first side and the second side.

8. The detection device according to any one of claims 1-7, characterized in that, The detection body includes a sensing cover facing the sensing area, and a lens assembly integrally formed on the back of the sensing cover, the lens assembly including multiple lens units.

9. The detection device according to claim 8, characterized in that, The center of the lens assembly is located in the middle area of ​​the sensing cover. A first circuit board is provided inside the detection body. A pyroelectric sensing element is provided on the first circuit board facing the sensing cover. The pyroelectric sensing element is located at the center of the lens assembly. The coverage area of ​​the lens assembly is greater than 40% of the coverage area of ​​the sensor cover.

10. The detection device according to claim 9, characterized in that, The detection body also has a second circuit board inside, which is mounted on top of the first circuit board. The second circuit board is equipped with a radar module, and the radar waves generated by the radar module are emitted outward through the sensing cover. The lens unit is constructed as a Fresnel lens.

11. The detection device according to claim 10, characterized in that, The side of the detection body includes a third side on which the button is provided; The second circuit board is disposed at an off-center position of the first circuit board, and the second circuit board is located between the center of the first circuit board and the third side; The part where the detection body is connected to the mounting assembly is provided with a limiting structure, which can limit the rotation angle of the detection body toward the third side to less than 15°. The detection body includes a housing with an open bottom. The sensing cover is disposed on the bottom of the housing, forming a receiving cavity with the housing. The first circuit board and the second circuit board are housed in the receiving cavity.

12. The detection device according to any one of claims 1-7, characterized in that, The detection body has a first circuit board inside, the first circuit board faces the sensing area, and an electronic switch is provided on the edge of the first circuit board at the position corresponding to the button. The trigger rod of the electronic switch protrudes laterally from the first circuit board, and the button abuts against the trigger rod. The detection body includes a housing, and the button is integrally formed into the housing.

13. The detection device according to any one of claims 1-7, characterized in that, The detection body has a second circuit board inside, and a radar module is arranged on the second circuit board facing the sensing area.

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