A human body detection device

Abstract

This invention provides a human body detection device, including a cylindrical shell and an infrared pyroelectric module and a radar module disposed inside the cylindrical shell. A detection window is opened on the side of the cylindrical shell, and the detection window is blocked by an arched thin sheet. A lens assembly is integrally formed on the back of the arched thin sheet. The lens assembly is used to focus infrared light onto the infrared pyroelectric module, and radar waves emitted by the radar module pass through the arched thin sheet and are emitted outwards. The human body detection device provided by this invention has a more compact structure.

Description

Technical Field

[0001] This utility model relates to the field of smart home technology, and in particular to a human body detection device. Background Technology

[0002] Smart sensors are the "sensory nerves" of smart homes, serving as the cornerstone and prerequisite for achieving intelligence. Without sensors, smart homes would lack awareness, and all automated control would be impossible.

[0003] Currently available human body sensors include human infrared sensors and human presence sensors. Human infrared sensors detect changes in infrared light emitted by the human body to determine whether there is a moving human body in the target area. Human presence sensors actively emit radar waves through a radar module and receive the reflected radar waves, determining whether there is a human body in the target area based on the Doppler principle. Utility Model Content

[0004] With the continuous development of human body sensors, a human presence sensor integrating an infrared pyroelectric module and a radar module has gradually emerged. This sensor complements the advantages of the radar module and the infrared pyroelectric module, improving the sensor's performance. However, the structural design of this human presence sensor simply combines the radar module and the infrared pyroelectric module together, resulting in a complex and bulky outer shell and internal structure, and an increased overall size.

[0005] One objective of this invention is to provide a human body detection device in which the infrared pyroelectric module and the radar module share a single detection window, resulting in a more compact structure.

[0006] Another objective of this invention is to provide a human body detection device in which both radar waves and reflected waves pass through an arched thin sheet. Thanks to the thinness of the arched thin sheet, the radar waves experience less attenuation when passing through it, resulting in better performance of the radar module.

[0007] Another objective of this invention is to provide a human body detection device in which the arched sheet has a large circumferential angle in the horizontal direction, so that radar waves over a large range in the horizontal direction can pass through the arched sheet, which is beneficial for the radar module to perform large-scale detection in the horizontal direction.

[0008] Another objective of this invention is to provide a human body detection device in which a radar module is placed within the coverage area of ​​a smooth region, so that most of the radar waves pass through the smooth region, thus avoiding adverse effects of the lens assembly on the radar waves.

[0009] Another objective of this invention is to provide a human body detection device in which a second circuit board is placed between the first circuit board and the lens assembly, making reasonable use of the space generated by the focusing distance, resulting in higher space utilization and a more compact structure.

[0010] Another objective of this invention is to provide a human body detection device in which the first circuit board and the second circuit board are stacked radially along the cylindrical shell, making reasonable use of the radial space of the cylindrical shell and avoiding the problem of the infrared pyroelectric module and the radar module being placed on the same circuit board, which would result in an excessively large circuit board.

[0011] Another objective of this invention is to provide a human body detection device, wherein a first through slot passes through a second circuit board to allow infrared light to pass through, thereby preventing the second circuit board from blocking the converged infrared light and causing the infrared pyroelectric module to fail.

[0012] Another objective of this invention is to provide a human body detection device in which a pad supports a brightness sensor, allowing the end face of the brightness sensor to protrude beyond the side of the second circuit board facing the arched sheet, thus preventing the second circuit board from blocking light and enabling the brightness sensor to more accurately sense ambient light.

[0013] Another objective of this invention is to provide a human body detection device in which the second circuit board and the first circuit board are integrated into a cylindrical housing via pin headers and socket headers, thereby improving assembly efficiency and enhancing the relative positional accuracy between the first circuit board and the second circuit board.

[0014] Another objective of this invention is to provide a human body detection device, wherein the fourth limiting groove and the fifth limiting groove limit the two sides of the arched sheet to restrict the shape of the arched sheet.

[0015] Another objective of this invention is to provide a human body detection device, wherein the first abutting wall and the second abutting wall provide abutting force on both sides of the arched sheet to support both sides of the arched sheet, so that it fits against the inner wall of the cylindrical shell and maintains the arch shape; when the arched sheet is subjected to external pressure, the first abutting wall and the second abutting wall can support the arched sheet without deformation.

[0016] Another objective of this invention is to provide a human body detection device, wherein both the limiting block and the third abutment wall serve to restrict the upward movement of the second end of the arched sheet, and a certain distance exists between the limiting block and the second end of the arched sheet. When the third abutment wall restricts the arched sheet, the limiting block and the arched sheet do not contact each other. The function of the limiting block is to prevent the arched sheet from detaching from the cylindrical shell when the limiting housing is not installed in the cylindrical shell, thus maintaining the assembled relationship between the arched sheet and the cylindrical shell.

[0017] Another objective of this invention is to provide a human body detection device in which the arched sheet can be unfolded into a flat plate shape, so that the arched sheet can be first processed into a flat plate structure and then rolled into an arch shape, which greatly reduces the processing difficulty.

[0018] To achieve at least one of the above objectives, this utility model provides a human body detection device, including a cylindrical shell and an infrared pyroelectric module and a radar module disposed inside the cylindrical shell; wherein, a detection window is opened on the side of the cylindrical shell, the detection window is blocked by an arched thin plate, and a lens assembly is integrally formed on the back of the arched thin plate, the lens assembly is used to focus infrared light onto the infrared pyroelectric module, and the radar wave emitted by the radar module passes through the arched thin plate and is emitted outward.

[0019] Furthermore, the arched sheet includes a lens region where the lens assembly is disposed, and a smooth region where the lens assembly is not disposed, the smooth region covering the radar module, and the lens region not covering the radar module.

[0020] In some embodiments, a first circuit board and a second circuit board are disposed inside the cylindrical housing, the infrared pyroelectric module is disposed on the first circuit board, the radar module is disposed on the second circuit board, the second circuit board is located between the first circuit board and the arched sheet, and a first through slot is formed on the second circuit board at the position corresponding to the infrared pyroelectric module.

[0021] Furthermore, the first circuit board is provided with a brightness sensor, and a pad is provided between the brightness sensor and the first circuit board to support the brightness sensor. The second circuit board has a second through slot at the corresponding position of the brightness sensor, and the brightness sensor is embedded in the second through slot.

[0022] In some embodiments, the second circuit board is parallel to the first circuit board, and the second circuit board and the first circuit board are integrally connected and installed into the cylindrical housing via pin headers and socket headers.

[0023] Furthermore, a first sliding groove is provided on both sides of the inner wall of the cylindrical shell, and the two sides of the first circuit board slide into the first sliding groove respectively; a second sliding groove is provided on both sides of the inner wall of the cylindrical shell, and the two sides of the second circuit board slide into the second sliding groove respectively.

[0024] In some embodiments, one end of the cylindrical housing is an open end, and the first circuit board and the second circuit board are installed into the cylindrical housing through the open end; a limiting housing is installed on the open end, and the limiting housing is provided with a first limiting groove and a second limiting groove, the first circuit board is limited by the first limiting groove, and the second circuit board is limited by the second limiting groove.

[0025] Furthermore, the limiting housing is recessed towards the interior of the cylindrical outer shell to form a compartment, and a button battery is installed inside the compartment; an electrode spring is soldered onto the first circuit board, and the electrode spring passes through the limiting housing and abuts against the button battery.

[0026] In some embodiments, one end of the cylindrical shell is an open end, and the arched sheet is inserted into the cylindrical shell through the open end; a third limiting groove is provided at the end of the cylindrical shell away from the open end, and the first end of the arched sheet is inserted into the third limiting groove; a limiting housing is installed at the open end of the cylindrical shell, and the second end of the arched sheet away from the first end is inserted between the limiting housing and the cylindrical shell.

[0027] Further, the arched sheet includes a first side and a second side located between the first end and the second end. The cylindrical shell is provided with a fourth limiting groove and a fifth limiting groove at corresponding positions on the first and second sides of the arched sheet, respectively. The first side and the second side are respectively inserted into the fourth limiting groove and the fifth limiting groove. The cylindrical shell is provided with a first abutting wall and a second abutting wall at corresponding positions on the first and second sides of the arched sheet, respectively. The end faces of the first and second sides of the arched sheet abut against the first abutting wall and the second abutting wall, respectively. The limiting shell is provided with a third abutting wall at a corresponding position on the second end of the arched sheet. The third abutting wall is used to abut against the end face of the second end of the arched sheet. The inner wall of the cylindrical shell is provided with a limiting block, which is used to limit the second end of the arched sheet.

[0028] In some embodiments, the arched sheet can be unfolded into a planar plate shape.

[0029] 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 present invention. The foregoing descriptions of the present invention can be combined in any way, and these and other objectives of the present invention will be fully realized through the following detailed description and accompanying drawings.

[0030] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit the present invention. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the structure of a human body detection device according to an embodiment of the present invention;

[0033] Figure 2 This is a side view of a human body detection device in a first adjustment state according to an embodiment of the present invention;

[0034] Figure 3 This is a schematic diagram of the structure of a photovoltaic power generation component according to an embodiment of the present invention;

[0035] Figure 4 This is a bottom view of a human body detection device according to an embodiment of the present invention when it is rotated to its limit position in the horizontal direction;

[0036] Figure 5 This is a three-dimensional sectional view of the detection body according to an embodiment of the present invention;

[0037] Figure 6 This is a schematic diagram of the assembly of the detection body and the adjustment bracket according to an embodiment of the present invention;

[0038] Figure 7 This is a schematic diagram of the structure of an adjustment bracket according to an embodiment of the present invention;

[0039] Figure 8 This is an exploded view of an adjustment bracket according to an embodiment of the present invention;

[0040] Figure 9 This is a side view of the detection body and adjustment bracket of an embodiment of the present invention when they are installed on a wall.

[0041] Figure 10 This is a schematic diagram of the assembled detection body and adjustment bracket according to an embodiment of the present invention;

[0042] Figure 11 This is a cross-sectional view of the detection body and adjustment bracket after assembly according to an embodiment of the present invention;

[0043] Figure 12 This is an assembly diagram of the bin cover, bin body, and cylindrical outer shell according to an embodiment of the present invention;

[0044] Figure 13 This is a perspective sectional view of the bin cover and bin body according to an embodiment of the present invention;

[0045] Figure 14 This is an assembly diagram of a button battery, housing, first circuit board, and second circuit board according to an embodiment of the present invention.

[0046] Figure 15 This is an exploded view of the detection body according to an embodiment of the present invention;

[0047] Figure 16 This is a schematic diagram of the limiting shell structure according to an embodiment of the present invention;

[0048] Figure 17 This is a schematic diagram of the structure of the first circuit board, the second circuit board, and various electronic components according to an embodiment of the present invention;

[0049] Figure 18 This is a cross-sectional view of the limiting housing, the first circuit board, the second circuit board, and the lens carrier according to an embodiment of the present invention;

[0050] Figure 19 This is a perspective sectional view of the cylindrical shell and lens support of an embodiment of the present invention;

[0051] Figure 20 This is a perspective sectional view of the cylindrical shell according to an embodiment of the present invention;

[0052] Figure 21 This is a schematic diagram of the lens carrier structure according to an embodiment of the present invention;

[0053] Figure 22 This is an exploded view of a solar power generation component according to an embodiment of this utility model;

[0054] Figure 23 This is a cross-sectional view of a photovoltaic power generation component according to an embodiment of the present invention;

[0055] Figure 24 This is a schematic diagram of the structure of a third circuit board and electronic components disposed thereon according to an embodiment of the present invention;

[0056] Figure 25 This is an assembly diagram of the arched shell, the base shell, and the third circuit board according to an embodiment of the present invention;

[0057] Figure 26 This is a schematic diagram of the structure of a photovoltaic power generation component according to an embodiment of the present invention, after the photovoltaic panel and double-sided adhesive are hidden.

[0058] Figure 27 This is a schematic diagram showing the connection of multiple photovoltaic power generation components according to an embodiment of the present invention;

[0059] Figure 28 This is an exploded view of a solar power generation component according to an embodiment of this utility model;

[0060] Figure 29 This is a schematic diagram showing the connection between the photovoltaic power generation component, the adjustment bracket, and the detection body according to an embodiment of this utility model. Detailed Implementation

[0061] In the description of this utility model, the terms "inner", "outer", "horizontal", "vertical", "upper", "lower", "top", "bottom", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not require that this utility model must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0062] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0063] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection, an electrical connection, or a connection that allows communication between the components; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0064] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope claimed by the present utility model.

[0065] Existing human body sensors are powered by high-voltage electricity, low-voltage electricity, and batteries. High-voltage and low-voltage powered human body sensors require a power cord, which limits their installation location and affects their installation flexibility and convenience. Battery-powered human body sensors do not require a power cord and can be attached to any location to adjust the detection area to the optimal position. However, the battery life is generally only 1-2 years, and frequent battery replacements cause inconvenience.

[0066] To address the limitations of existing human body sensors in terms of installation location or frequent battery replacements, according to the first aspect of this utility model, a human body detection device 100 is provided. Please refer to [link / reference]. Figures 1-29 The human body detection device 100 provided by this utility model will be specifically explained. Specifically, as Figures 1-6As shown, the human body detection device 100 includes a cylindrical detection body 1; an adjusting bracket 2, rotatably connected to the end of the detection body 1, wherein the detection body 1 can rotate relative to the adjusting bracket 2 to adjust the detection direction; and a solar power generation component 3, plugged into one end of the detection body 1 connected to the adjusting bracket 2, and electrically connected to the detection body 1 by plugging in. The cylindrical detection body 1 can be a cylinder, a polygonal prism, or a similar cylindrical shape. The detection body 1 contains a detection module for detecting human bodies, which may include an infrared pyroelectric detection module and / or a radar detection module. The solar power generation component 3 can be understood as an external device with solar power generation function, capable of converting light energy into electrical energy.

[0067] The solar power generation module 3 is directly plugged into the detection body 1, which not only supplies power to the detection body 1 but also allows for a suspended installation of the solar power generation module 3, eliminating the need for a separate installation structure and simplifying the overall design. The plug-in installation method facilitates simple and quick installation and removal of the solar power generation module 3. The plug-in method can utilize a USB plug (e.g.,...). Figure 3 As shown), a DC power plug can also be used (e.g. Figure 29 (as shown), or other plug-in methods can be used to achieve electrical connection.

[0068] The photovoltaic power generation component 3 provided in this embodiment of the utility model has two main functions:

[0069] 1. An energy storage capacitor 33 can be installed inside the solar power generation component 3 to store the electrical energy generated by the solar panel 31. When the power generation of the solar panel 31 is large enough and the capacity of the energy storage capacitor 33 is large enough, the power generation of the solar power generation component 3 can sustain the detection body 1 for 24 hours a day. At this time, the detection body 1 only needs the solar power generation component 3 for power supply and does not need a power cord or battery power supply, which solves the problem of limited installation location and frequent battery replacement of existing human body sensors.

[0070] 2. If the power output of the solar power generation component 3 is too small to maintain the continuous operation of the detection body 1, a button battery 15 can be installed inside the detection body 1. The solar power generation component 3 and the button battery 15 work together. When the solar power generation component 3 has sufficient power, it is used to supply power. When the power of the solar power generation component 3 is insufficient, it is switched to the button battery 15 for power supply. This greatly improves the battery life of the button battery 15 and solves the problems of limited installation location and frequent battery replacement of existing human body sensors.

[0071] In the embodiments of this utility model, such as Figure 1 and Figure 2As shown, the adjustment bracket 2 includes a first adjustment member 21 connected to the detection body 1 and a second adjustment member 22 connected to the edge of the first adjustment member 21. The second adjustment member 22 is used to connect to the mounting surface 200. The first adjustment member 21 and the second adjustment member 22 are in a first adjustment state. In the first adjustment state, the first adjustment member 21 is perpendicular to the second adjustment member 22, and the photovoltaic power generation component 3 is located in the right-angle space formed between the first adjustment member 21 and the second adjustment member 22. The mounting surface 200 can be understood as the surface of an object used to install the human body detection device 100, such as a wall, refrigerator door surface, cabinet door surface, etc. The second adjustment member 22 can be directly pasted to the mounting surface 200, or magnetically connected to the mounting surface 200, or a piece of iron is pasted on the mounting surface 200 and the second adjustment member 22 is magnetically connected to the piece of iron, or it can be installed on the mounting surface 200 in other ways.

[0072] The first adjustment state is a commonly used state in daily use. At this time, the first adjustment member 21 is perpendicular to the second adjustment member 22, and the axis of the detection body 1 is parallel to the mounting surface 200 (e.g., Figure 2 As shown in the figure, the right-angle space would become a wasted dead space in conventional design. However, in this embodiment of the utility model, the photovoltaic power generation component 3 is placed in the right-angle space, which makes good use of this space and makes the whole product highly integrated and the structure more compact.

[0073] Furthermore, the fact that the solar power generation component 3 is located in the right-angled space can prevent the solar power generation component 3 from blocking the detection signal of the detection subject 1.

[0074] Furthermore, such as Figure 1 and Figure 2 As shown, the photovoltaic power generation component 3 includes a light receiving surface 311, and an infrared pyroelectric module 111 is disposed inside the detection body 1. A detection window 131 is opened on the side of the detection body 1, and a lens carrier 14 is installed on the detection window 131. The lens carrier 14 includes a lens assembly 141, which is used to focus infrared light onto the infrared pyroelectric module 111. The detection window 131 and the light receiving surface 311 face the same side, and the photovoltaic power generation component 3 rotates synchronously with the detection body 1.

[0075] Generally, the detection body 1 detects areas where people are active, which are usually also areas with light sources. The light-receiving surface 311 and the detection window 131 face the same side, and the photovoltaic assembly 3 rotates synchronously with the detection body 1. This allows the light-receiving surface 311 to face the direction of the light source, ensuring the power generation efficiency of the photovoltaic assembly 3. It eliminates the need for separate adjustment of the direction of the light-receiving surface 311, making it more convenient. In one embodiment, as... Figure 1 As shown, a USB plug is provided at the upper end of the photovoltaic power generation component 3, and a USB port is provided at the lower end of the detection body 1. The photovoltaic power generation component 3 is plugged into the USB port through the USB plug to realize the electrical connection between the photovoltaic power generation component 3 and the detection body 1, and the photovoltaic power generation component 3 rotates synchronously with the detection body 1.

[0076] In other embodiments, such as Figure 29 As shown, the photovoltaic power generation component 3 can also be independent of the synchronous rotation of the detection body 1, allowing the detection direction and the light energy receiving direction to be adjusted separately. This enables the light energy receiving surface 311 to be precisely oriented towards the light source, further improving power generation efficiency and more accurately controlling the detection range. Specifically, as... Figure 29 As shown, one end of the solar power generation component 3 is equipped with a DC power plug, and one end of the detection body 1 has a DC power socket. The solar power generation component 3 is plugged into the DC power socket through the DC power plug, thereby achieving electrical connection between the solar power generation component 3 and the detection body 1. Since the DC power plug is cylindrical, the solar power generation component 3 can rotate around the DC power plug after being plugged into the detection body 1, allowing the detection direction and the light energy receiving direction to be adjusted separately.

[0077] like Figure 2 As shown, when the detection body 1 is in the first adjustment state, there is a right-angle space at the lower end of the detection body 1 that can be used to insert the photovoltaic power generation component 3. At this time, the axis of the detection body 1 is parallel to the wall. Thanks to the detection window 131 being opened on the side of the detection body 1, the detection direction can be directed towards the side away from the wall, thus avoiding the detection signal being blocked by the wall.

[0078] The lens assembly 141 is composed of multiple lens units 1411. Each lens unit 1411 can be a small convex lens or a Fresnel lens. The lens unit 1411 has a focusing function, converging the infrared light emitted by the human body onto the infrared pyroelectric module 111, thereby improving the sensing sensitivity of the infrared pyroelectric module 111. Human movement within the target area can cause a moving infrared spot to be focused onto the infrared pyroelectric module 111, resulting in a voltage level change at the pins of the infrared pyroelectric module 111. The detection subject 1 determines whether there is a person in the target area based on the voltage level change of the infrared pyroelectric module 111. Therefore, using a larger number of lens units 1411 can improve infrared sensing sensitivity.

[0079] Furthermore, such as Figure 5As shown, the detection body 1 is constructed in a cylindrical shape, including a cylindrical outer shell 13. The cylindrical outer shell 13 has a detection window 131. The detection window 131 occupies a circumferential angle greater than 120° around the cylindrical outer shell 13. The lens carrier 14 includes an arched thin sheet 142 and a lens assembly 141 disposed on the back of the arched thin sheet 142. The arched thin sheet 142 is confined within the detection window 131. The term "cylindrical-like" includes a cylindrical shape and shapes similar to a cylinder. In an exemplary embodiment, such as... Figure 6 As shown, the detection body 1 is constructed as a prism with a 16-sided cross-section.

[0080] The detection window 131 occupies a circumferential angle greater than 120°, allowing the infrared detection range to cover a relatively wide fan-shaped area in the horizontal direction; and most of the radar waves emitted by the radar module 124 pass through the lens carrier 14, resulting in better detection performance of the radar module 124. In one embodiment, as... Figure 5 and Figure 2 As shown, the detection window 131 is narrow at the top and bottom and wide in the middle, with the middle part occupying a circumferential angle of 180°.

[0081] The arched sheet 142 is confined inside the detection window 131 to ensure that the lens carrier 14 is stably fixed inside the cylindrical housing 13, preventing the lens carrier 14 from detaching from the cylindrical housing 13.

[0082] The arch can be understood as a specific shape: formed by extending a width of a circular arc or a similar curve in a direction perpendicular to the plane containing the curve. For example, if a cylindrical shape is cut in half axially, one half will be an arch. Figure 21 The diagram shows a schematic of the structure of the lens carrier 14. The advantage of constructing the lens carrier 14 as an arch is that it can adapt to the shape of the detection window 131. The periphery of the arched sheet 142 can fit against the periphery of the detection window 131, thereby achieving the effect of completely sealing the detection window 131. The arched sheet 142 is easy to process and manufacture. During manufacturing, the lens carrier 14 can be first processed into a square sheet, and then the square sheet can be bent to a certain arc to form the arched sheet 142.

[0083] In some embodiments, such as Figure 3 , Figure 4 and Figure 29As shown, the solar power generation component 3 includes a housing assembly 35, a connector 34 disposed at the end of the housing assembly 35, and a solar energy plate 31 disposed on one side of the housing assembly 35. The solar power generation component 3 is inserted into the detection body 1 through the connector 34. The side of the housing assembly 35 facing away from the solar energy plate 31 is constructed with a shape that is thick in the middle and thin on both sides, allowing the solar power generation component 3 to rotate at a specific angle. Figure 2 and Figure 4 As shown, the specific angle can be understood as the range of angles within which the photovoltaic power generation component 3 can rotate without interfering with other components. Since the photovoltaic power generation component 3 is located in the right-angle space formed between the first adjusting member 21 and the second adjusting member 22, during horizontal rotation, the two sides of the photovoltaic power generation component 3 will interfere with the vertically positioned second adjusting member 22, thus limiting the rotation angle of the photovoltaic power generation component 3. Therefore, the photovoltaic power generation component 3 can only rotate within the specified specific angle. Furthermore, the synchronous rotation of the photovoltaic power generation component 3 and the detection body 1 also limits the rotation angle of the detection body 1.

[0084] While narrowing the width of the light-emitting component can expand the specific angle, the efficiency of light power generation will be greatly reduced. This embodiment of the invention designs the shape of the outer shell component 35 to make its sides thinner, so that the light-emitting component can rotate a wider range of angles while ensuring sufficient width, that is, expand the specific angle.

[0085] In one specific embodiment, such as Figure 4 As shown, the photovoltaic power generation component 3 has an initial state in which the light receiving surface 311 is parallel to the second adjusting member 22 (e.g., Figure 4 As shown in the first figure, after the photovoltaic power generation component 3 is rotated counterclockwise by an angle θ from the initial state, it interferes with the second adjustment component 22 (as shown in the first figure). Figure 4 As shown in the second figure, after the photovoltaic power generation component 3 is rotated clockwise by an angle θ from the initial state, it interferes with the second adjustment component 22 (as shown in the second figure). Figure 4 As shown in the third figure, the specific angle is 2θ. In this embodiment, θ = 43°.

[0086] The plug-in portion 34 can be understood as a structure capable of being plugged in to achieve an electrical connection, such as a USB plug or a power plug. Figure 3 and Figure 4 In the illustrated embodiment, the plug-in portion 34 is constructed as a USB plug. Because the USB plug is elongated and flat, the detection body 1 rotates synchronously with the photovoltaic power generation component 3 at the specified angle. Figure 29 In the embodiment shown, the plug portion 34 is configured as a DC power plug. Since the DC power plug is cylindrical, the photovoltaic power generation component 3 can rotate independently at the specific angle.

[0087] Furthermore, such as Figure 4 As shown, the detection body 1 is constructed in a cylindrical shape. The difference between the radial width of the detection body 1 and the width of the outer shell assembly 35 is less than 10% of the radial width of the detection body 1, ensuring that the width of the light energy receiving surface 311 is sufficiently wide to guarantee power generation efficiency. The cylindrical shape has been explained in detail above and will not be repeated here. The radial width can be understood as the width on a plane perpendicular to the axial direction of the detection body 1.

[0088] In some embodiments, such as Figures 1-3 As shown, the insertion part 34 is located at the middle position of the end of the outer shell assembly 35, and an electrical connector 1332 is provided at the middle position of the end of the detection body 1. The insertion part 34 is inserted into the electrical connector 1332. The middle position can be understood as the position near the geometric center of the end face. In this embodiment of the invention, the electrical connector 1332 is located at the center of the end of the detection body 1, and the insertion part 34 is located at the middle position of the end of the photovoltaic power generation component 3, so that there is a certain distance between the photovoltaic power generation component 3 and the second adjusting member 22, providing rotation space for the photovoltaic power generation component 3.

[0089] Furthermore, such as Figure 6 and Figure 1 As shown, the end of the detection body 1 is provided with a circular boss 1321, and the first adjusting member 21 is provided with a circular through hole 2111. The circular boss 1321 is embedded in the circular through hole 2111, and the circular boss 1321 can rotate based on the circular through hole 2111. The electrical connector 1332 is provided on the end face of the circular boss 1321, so that the electrical connector 1332 can be exposed in the right-angle space, so that the photovoltaic power generation component 3 located in the right-angle space can be plugged into the electrical connector 1332.

[0090] Furthermore, such as Figure 3 As shown, the outer shell assembly 35 arches outward at the middle position on the side opposite to the solar panel 31 to form an arched portion 3511. The arched portion 3511 extends in a third direction, which is the direction in which the detection body 1 faces the solar power generation component 3. The extension of the arched portion 3511 in the third direction does not affect the rotation angle range of the solar power generation component 3, and increases the internal space of the arched portion 3511.

[0091] Furthermore, such as Figures 22-24As shown, an energy storage capacitor 33 is provided inside the arched portion 3511. The energy storage capacitor 33 is used to store electrical energy. Since the energy storage capacitor 33 has a large volume, placing it in the arched portion 3511 maximizes the volume of the energy storage capacitor 33, ensuring the capacity of the energy storage capacitor 33. Furthermore, the rotation angle range of the solar power generation component 3 will not be affected by accommodating the energy storage capacitor 33.

[0092] Furthermore, such as Figure 6 and Figure 4 As shown, the circular protrusion 1321 is provided with a button 1331. The button 1331 is located on the side of the electrical connector 1332 away from the arched portion 3511. When the photovoltaic power generation component 3 is plugged into the detection body 1, most or all of the area of ​​the button 1331 is not blocked by the photovoltaic power generation component 3, so that the button 1331 can still be operated when the photovoltaic power generation component 3 is plugged into the detection body 1. In one embodiment, as... Figure 4 As shown, the area of ​​the button 1331 that is blocked by the solar power generation component 3 is less than 10%.

[0093] In some embodiments, such as Figure 1 As shown, the solar power generation component 3 can be plugged into or unplugged from the electrical connector 1332 within the specific angle; for example... Figure 11 As shown, a button battery 15 is provided at the end of the detection body 1 furthest from the electrical connector 1332. When the photovoltaic power generation component 3 is plugged into the detection body 1, the button battery 15 and the photovoltaic power generation component 3 cooperate to supply power to the detection body 1. The cooperation between the button battery 15 and the photovoltaic power generation component 3 can be understood as follows: when the photovoltaic power generation component 3 has sufficient power, it provides power; when the photovoltaic power generation component 3 has insufficient power, it switches to the button battery 15, thus greatly improving the battery life of the button battery 15. Placing the button battery 15 at the end furthest from the electrical connector 1332 avoids interference between the button battery 15 and the electrical connector 1332.

[0094] The photovoltaic power generation component 3 provided by this utility model adopts a pluggable design and is powered in conjunction with the button battery 15, enabling diversified application scenarios: when the application scenario is more complex, the photovoltaic power generation component 3 can be removed, and only the button battery 15 is used for power supply. At this time, the human body detection device 100 has a wide range of rotation and multiple adjustable degrees of rotation freedom, which can meet the adjustment requirements of more demanding detection directions; when the application scenario is more conventional, there is no need to make too much adjustment to the detection direction. At this time, the photovoltaic power generation component 3 can be installed to improve the battery life of the button battery 15.

[0095] Furthermore, the USB port can also be connected to a USB data cable, which is connected to a power adapter, and the detection unit 1 is powered by the power adapter. Furthermore, the USB port is a Type-C interface.

[0096] In some embodiments, such as Figure 6 As shown, the edge of the first adjusting member 21 is rotatably connected to the second adjusting member 22, and the rotation axis of the second adjusting member 22 relative to the first adjusting member 21 is designated as the second rotation axis 24; the rotation axis of the detection body 1 relative to the first adjusting member 21 is designated as the first rotation axis 23; the first rotation axis 23 is perpendicular to and does not intersect with the second rotation axis 24, and the cooperation between the first rotation axis 23 and the second rotation axis 24 allows the detection direction to be flexibly adjusted in three-dimensional space. Here, the first rotation axis 23 and the second rotation axis 24 can be understood as rotation center axes, not physical axes. The perpendicularity of the first rotation axis 23 to the second rotation axis 24 can be understood as spatial perpendicularity, not planar perpendicularity.

[0097] Existing human body sensors are designed for compatible base installation, typically with buttons and power interfaces located on the side. Once the base is installed, the buttons and power interfaces are often obstructed or pressed against the wall, making them inconvenient to operate.

[0098] To solve the above problems, in the embodiments of this utility model, such as Figure 1 and Figure 6 As shown, the adjustment bracket 2 includes a first adjustment member 21 and a second adjustment member 22 rotatably connected to the first adjustment member 21; the detection direction of the detection body 1 is lateral; the first adjustment member 21 is provided with a first locking part 211; the bottom of the detection body 1 is provided with a second locking part 132, which is embeddedly locked to the first locking part 211 and can rotate based on the first locking part 211; the second locking part 132 is provided with an operation part 133, which is used to trigger the electronic switch 126 inside the detection body 1 and / or connect to the power supply device; the operation part 133 is located on the bottom surface of the second locking part 132; when the second locking part 132 is embedded in the first locking part 211, the operation part 133 is exposed to the outside through the first locking part 211. The fact that the operating part 133 is exposed to the outside through the first latching part 211 can be understood as the first latching part 211 having a through hole or notch, allowing the operating part 133 to be directly touched by the user without being obstructed by the first latching part 211. In one embodiment, the first latching part 211 has a circular through hole 2111, and the operating part 133 is located inside the circular through hole 2111, with the operating part 133 exposed downward through the circular through hole 2111.

[0099] In everyday use, the detection direction is generally adjusted to a horizontal direction. Since the detection body 1 in this embodiment is oriented laterally, its bottom faces downwards under normal use. Regardless of rotation, the orientation of the bottom of the detection body 1 remains relatively stable. This embodiment places the operation section 133 (button 1331 and / or power supply interface) at the bottom of the detection body 1, preventing it from being flush against a wall and exposing it downwards, thus facilitating the operation of button 1331 and the connection of the electrical connector 1332. When the operation section 133 is connected to a power cord, the power cord is less likely to interfere with other components.

[0100] In addition, the second snap-fit ​​part 132 is not only used to set the operation part 133, but also to support the detection body 1 and rotate the detection direction, integrating the three functions of support, adjustment and operation into one structure, thus achieving a high degree of structural integration.

[0101] It is worth mentioning that when the second adjusting member 22 is installed on a horizontal plane, the second adjusting member 22 and the first adjusting member 21 are closed together, so that the operating part 133 is hidden between the first adjusting member 21 and the second adjusting member 22, which improves the integrity of the appearance.

[0102] Thanks to the dual-shaft rotation between the detection body 1 and the second adjustment component 22, free rotation in the horizontal and pitch directions can be achieved. Users can infinitely adjust the detection body 1 to the optimal angle, and when the user's adjustment operation is removed, the friction of the shaft can support the detection body 1 to maintain the current direction.

[0103] When the adjustment bracket 2 is attached to a high or narrow position, replacing the button battery 15 can be inconvenient. However, thanks to the second locking part 132 being rotatably locked to the first locking part 211, the user can detach the detection body 1 from the adjustment bracket 2, making it easier to replace the button battery 15. During installation, no tools are needed; simply insert the second locking part 132 into the first locking part 211 until a "click" is heard, completing the installation quickly and easily.

[0104] Furthermore, such as Figure 6As shown, the second engaging portion 132 includes a circular boss 1321 and a plurality of circumferential buckles 1322 distributed on the side of the circular boss 1321. The first engaging portion 211 includes a circular through hole 2111. The circular boss 1321 is inserted into the circular through hole 2111, and the circumferential buckles 1322 are engaged with the edge of the circular through hole 2111. The operating portion 133 is located on the end face of the circular boss 1321. When the circular boss 1321 is inserted into the circular through hole 2111, the operating portion 133 is exposed to the outside through the circular through hole 2111. The connection method, which uses a circular boss 1321 and a circular through hole 2111 to engage, not only achieves a rotational pair constraint similar to a shaft-hole fit, but also facilitates assembly. Installation is complete simply by inserting the circular boss 1321 into the circular through hole 2111, allowing the circumferential buckle 1322 to engage on the side of the circular through hole 2111 facing away from the detection body 1. Furthermore, the operating part 133 is exposed downwards through the circular through hole 2111 for easy user operation. The circumferential buckle 1322 can be understood as a buckle distributed circumferentially along the circular boss 1321.

[0105] Furthermore, the number of circumferential buckles 1322 is three, and the three circumferential buckles 1322 are evenly distributed along the circumference of the circular boss 1321.

[0106] Further, the operation unit 133 includes a button 1331 and / or an electrical connector 1332. In some embodiments, the button 1331 and the electrical connector 1332 are arranged side-by-side on the bottom surface of the circular boss 1321. The electrical connector 1332 may be a power supply socket, a USB socket, etc. Figure 6 In the illustrated embodiment, the electrical connector 1332 is configured as a USB port. Figure 29 In the embodiment shown, the electrical connector 1332 is configured as a DC power socket.

[0107] Furthermore, such as Figure 6 and Figure 11 As shown, the detection body 1 includes a cylindrical outer shell 13, with a circular boss 1321 disposed at the bottom of the cylindrical outer shell 13. The button 1331 is integrally connected to the cylindrical outer shell 13 via a connecting arm 134. When the first adjusting member 21 is engaged with the circular boss 1321, the first adjusting member 21 blocks the connecting arm 134. The connecting arm 134 serves both to connect the button 1331 and to provide a reset force for the button 1331. The integral connection of the button 1331 to the cylindrical outer shell 13 simplifies the assembly process.

[0108] In some embodiments, such as Figure 11 and Figure 1As shown, when the circumferential buckle 1322 is engaged with the circular through hole 2111, the circular boss 1321 does not protrude from the side of the first adjusting member 21 facing away from the detection body 1. That is, the circular boss 1321 does not protrude from the lower surface of the first adjusting member 21, so that when the second adjusting member 22 is closed with the first adjusting member 21, the upper surface of the second adjusting member 22 can fit against the lower surface of the first adjusting member 21. In one embodiment, the lower surface of the circular boss 1321 is flush with the lower surface of the first adjusting member 21.

[0109] Furthermore, such as Figure 8 and Figure 6 As shown, the first locking part 211 further includes an annular groove 2112 surrounding the circular through hole 2111, the annular groove 2112 being located at the end of the circular through hole 2111 away from the detection body 1; the circumferential buckle 1322 is engaged with the annular groove 2112, the circumferential buckle 1322 being accommodated in the annular groove 2112 so that the circular boss 1321 does not protrude from the side of the first adjusting member 21 away from the detection body 1. The annular groove 2112 surrounds the inner side of the circular through hole 2111, allowing the circumferential buckle 1322 to rotate 360° within the annular groove 2112, thereby enabling the detection body 1 to rotate 360° in the horizontal direction.

[0110] Furthermore, such as Figure 7 As shown, an annular protrusion 2113 protrudes from the side of the circular through hole 2111 facing the detection body 1, and the annular protrusion 2113 surrounds the circular through hole 2111. Figure 6 As shown, the bottom surface of the cylindrical outer shell 13 is provided with an annular recess 1323 around the circular boss 1321. When the circular boss 1321 is inserted into the circular through hole 2111, the annular protrusion 2113 is inserted into the annular recess 1323.

[0111] Furthermore, such as Figure 6 and Figure 1 As shown, the bottom of the detection body 1 is provided with a shallow groove 139 adapted to the first adjusting member 21. When the first locking part 211 is locked to the second locking part 132, the first adjusting member 21 is embedded in the shallow groove 139 and the first adjusting member 21 does not protrude from the bottom of the detection body 1.

[0112] The aforementioned adjustment bracket 2 provides two adjustable rotational degrees of freedom. These two degrees of freedom work together to allow the detection body 1 to rotate freely in both horizontal and pitch directions. Figure 9As shown, when the second adjustment component 22 is attached to a vertical wall, the detection body 1 is blocked by the wall and has only a 90° adjustment range in the vertical direction. Combined with the 360° adjustment range of the detection body 1 in the horizontal direction, the actual detection direction can only be adjusted in the second and fourth quadrants, and it is impossible to achieve adjustment without dead angles in all four quadrants.

[0113] To solve the above problems, in the embodiments of this utility model, such as Figures 6-8 As shown, the rotation axis of the detection body 1 relative to the first adjusting member 21 is designated as the first rotation axis 23; the rotation axis of the second adjusting member 22 relative to the first adjusting member 21 is designated as the second rotation axis 24; the second adjusting member 22 has a magnetic suction surface 2221, which is used to rotatably magnetically connect to the mounting surface 200. The second rotation axis 24 is parallel to the magnetic suction surface 2221, and the first rotation axis 23 is perpendicular to the second rotation axis 24, so that there are three adjustable rotational degrees of freedom between the detection body 1 and the mounting surface 200. That is, in Figure 9 In the middle, the second adjusting component 22 can rotate against the wall surface. Through the cooperation of the three rotational degrees of freedom, the detection direction can be adjusted without dead angles in the four quadrants.

[0114] It is worth noting that the detection area of ​​the detection subject 1 is not a symmetrical area horizontally and vertically, but rather an irregular area with unequal horizontal and vertical widths. Through the coordinated operation of three rotational degrees of freedom, the phase angle of the detection area can be adjusted, causing rotational transformations in the horizontal and vertical directions, thereby enabling more precise control of the detection area. For example, as shown... Figure 9 As shown, at this time, the second adjusting member 22 rotates 90° against the wall. Although the detection direction has not changed, the horizontal and vertical directions of the detection area have been rotated and transformed, thus changing the detection area.

[0115] In summary, by coordinating the three rotational degrees of freedom, it is possible to achieve seamless adjustment of the detection direction and arbitrary transformation of the phase angle of the detection area.

[0116] The magnetic surface 2221 can be understood as a surface with magnetic attraction function, capable of magnetically connecting to an iron mounting surface. In actual installation, the second adjustment component 22 can be magnetically mounted to the surface of a refrigerator, an iron cabinet door, or a wall with an attached iron sheet, where the magnetic surface 2221 is magnetically attached to the wall via the magnetic surface 2221. Since the magnetic connection is a surface constraint, it does not restrict the rotational or translational degrees of freedom of the second adjustment component 22 in the direction parallel to the mounting surface 200.

[0117] Furthermore, such as Figure 8As shown, the edge of the first adjusting member 21 is rotatably connected to the second adjusting member 22, thereby increasing the rotatable angle of the first adjusting member 21.

[0118] Furthermore, such as Figure 8 As shown, the first adjusting member 21 has a connecting protrusion 212 protruding from its edge toward the second adjusting member 22. The second adjusting member 22 has a connecting groove 2211 on its edge. A convex shaft 2212 is provided on one side wall of the connecting groove 2211, and a connecting through hole is provided on the other side wall. A snap-fit ​​groove is provided on one side wall of the connecting protrusion 212, and a threaded hole 2213 is provided on the other side wall. The connecting protrusion 212 is embedded in the connecting groove 2211, and the convex shaft 2212 is snapped into the snap-fit ​​groove. A screw 25 passes through the connecting through hole and connects to the threaded hole 2213 to achieve a rotatable connection between the first adjusting member 21 and the second adjusting member 22.

[0119] In some embodiments, such as Figure 8 As shown, the second adjusting member 22 includes a base 221 and a magnetic suction member 222. The first adjusting member 21 is rotatably connected to the base 221. The magnetic suction member 222 is embedded in the side of the base 221 facing away from the first adjusting member 21, and the side of the magnetic suction member 222 facing away from the first adjusting member 21 forms the magnetic suction surface 2221. The magnetic suction member 222 can be understood as a magnetic part, such as a magnet or magnetic rubber. Further, the bottom of the base 221 is provided with a receiving groove 2214, and the magnetic suction member 222 is embedded in and adhered to the receiving groove 2214.

[0120] The battery compartment covers of existing smart home devices generally use elastic buckles. When the cover is subjected to excessive pulling force, the buckles can easily disengage automatically, making the battery compartment easy to open and posing a safety hazard.

[0121] To address the above problems, in some embodiments, such as Figures 10-16 As shown, the detection body 1 also includes a battery compartment structure, which includes a compartment body 161 and a compartment cover 17. The compartment body 161 is provided with a first latching arm 162 extending in a first direction, and a first latching unit 1621 protrudes from the side of the first latching arm 162; as shown Figure 13As shown, the compartment cover 17 is provided with a second latching unit 1711. The second latching unit 1711 is configured to move toward the first direction to latch onto the first latching unit 1621. The first latching unit 1621 restricts the second latching unit 1711 from moving toward a second direction, which is opposite to the first direction. When the second latching unit 1711 applies an abutting force to the first latching unit 1621 toward the second direction, the abutting force generates a first torque relative to the first latching arm 162. The opening direction of the compartment cover 17 is the second direction, and the opening force on the compartment cover 17 is converted into an abutting force F1 applied by the second latching unit 1711 to the first latching unit 1621.

[0122] Specifically, such as Figure 13 As shown, the extension direction of the first latching arm 162 is opposite to the direction of the abutment force F1. The first latching arm 162 is equivalent to a cantilever beam structure, and the root of the first latching arm 162 is equivalent to the fulcrum of the cantilever beam. Since the first latching unit 1621 protrudes from the first latching arm 162, the abutment force F1 is located on the outside of the first latching arm 162. The abutment force F1 relative to the root of the first abutment arm forms the first torque T1. The direction of the first torque T1 is clockwise. Under the action of the first torque T1, the first latching arm 162 bends outward, causing the first latching unit 1621 to shift outward. As a result, the first latching unit 1621 and the second latching unit 1711 are latched more tightly, preventing the second latching unit 1711 from automatically disengaging when the opening force is too large, thus eliminating the safety hazard.

[0123] In order to allow the compartment cover 17 to be opened when the battery needs to be replaced, in this embodiment, as follows: Figure 13 As shown, the first latching arm 162 is provided with a pressing part 1622 on the same side of the first latching unit 1621. The pressing part 1622 can receive pressing force F2 and generate a second torque T2 relative to the first latching arm 162. The direction of the second torque T2 is opposite to the direction of the first torque T1. The second torque T2 causes the first latching unit 1621 to disengage from the second latching unit 1711. Since the pressing part 1622 and the first latching unit 1621 are located on the same side, the pressing force F2 on the pressing part 1622 is opposite to the protrusion direction of the first latching unit 1621. The pressing force F2 forms a second torque T2 in the counterclockwise direction relative to the root of the first latching arm 162. Under the action of the second torque T2, the first latching arm 162 bends inward, causing the first latching unit 1621 to shift inward. The first latching unit 1621 separates from the second latching unit 1711, so that the second latching unit 1711 can move in the second direction, and the compartment cover 17 can be opened.

[0124] It is worth mentioning that when opening the compartment cover 17, the pressing part 1622 must be in a pressed state to pry open the compartment cover 17. This operation requires the cooperation of two hands and cannot be opened with one hand, thus preventing children from opening the compartment cover 17 and accidentally swallowing the button battery 15.

[0125] Furthermore, such as Figure 13 As shown, the compartment cover 17 is disposed on the side of the compartment body 161 facing the second direction. The compartment cover 17 is provided with a second latching arm 171 extending towards the first direction, and a second latching unit 1711 is disposed on the side of the second latching arm 171. The advantage of providing the second latching arm 171 is that it allows the second latching unit 1711 to be positioned further away from the compartment cover 17, thereby increasing the distance between the first latching unit 1621 and the root of the first latching arm 162. When the pressing part 1622 is pressed, sufficient deformation can be generated between the first latching unit 1621 and the root of the first latching arm 162, so that the offset of the first latching unit 1621 is sufficient to allow the second latching unit 1711 to smoothly disengage from the first latching unit 1621, and the compartment cover 17 can be opened.

[0126] Furthermore, such as Figure 13 and Figure 12 As shown, a latching portion 1712 is provided on the side of the second latching arm 171 opposite to the second latching unit 1711. The latching portion 1712 is used to receive latching force to drive the second latching arm 171 to move in the second direction. The latching force can be understood as the force applied by the user by engaging the latching portion 1712 with their fingernail. In some embodiments, the latching portion 1712 is constructed as a horizontal strip-shaped recess located on the side of the second latching arm 171, allowing the user to apply force in the second direction by engaging this recessed portion with their fingernail.

[0127] In some embodiments, such as Figure 13 As shown, the first latching arm 162 extends to the side of the compartment body 161, and the second latching arm 171 extends to the side of the compartment cover 17. Furthermore, the inner side of the second latching arm 171 abuts against the outer side of the first latching arm 162 to enhance the latching stability between the second latching unit 1711 and the first latching unit 1621.

[0128] In some embodiments, such as Figure 13 As shown, the first snap-fit ​​arm 162 includes a connecting end connected to the compartment body 161 and a free end away from the connecting end. The pressing part 1622 is disposed at the free end, and the first snap-fit ​​unit 1621 is disposed between the pressing part 1622 and the connecting end.

[0129] Furthermore, the second latching unit 1711 is disposed at the end of the second latching arm 171, that is, the end of the second latching arm 171 is located at the corresponding position of the first latching unit 1621, so that the second latching arm 171 will not block the pressing part 1622.

[0130] Furthermore, such as Figure 13 As shown, the first latching unit 1621 includes a first latch, and the second latching unit 1711 includes a second latch. The second latch moves toward the first direction to latch onto the first latch, and the first latch restricts the second latch from moving toward the second direction.

[0131] In some embodiments, such as Figures 11-16 As shown, the chamber 161 is fixedly installed inside the cylindrical outer shell 13; the chamber cover 17 is disposed at the end of the cylindrical outer shell 13; a button battery 15 is disposed inside the chamber 161, and the button battery 15 is confined between the chamber 161 and the chamber cover 17; a first circuit board 11 and a detection module are disposed inside the cylindrical outer shell 13, and the first circuit board 11 is electrically connected to the button battery 15. The detection module includes the infrared pyroelectric module 111 and the radar module 124. The fixed connection can be a snap-fit ​​connection, a screw connection, or other fixed connection methods.

[0132] Furthermore, such as Figure 11 and Figure 10 As shown, the pressing part 1622 includes a button that protrudes from the side of the first latching arm 162. The cylindrical housing 13 has a pressing hole 138 at the corresponding position of the button, through which the button is exposed. Furthermore, the button protrudes from the side of the cylindrical housing 13 through the pressing hole 138 to ensure sufficient travel for the user to press the button, and that the deformation of the first latching arm 162 is sufficient to separate the first latching unit 1621 from the second latching unit 1711.

[0133] In some embodiments, such as Figure 11 and Figure 12 As shown, a second latching arm 171 extends from the side of the compartment cover 17. The second latching arm 171 is provided with a second latching unit 1711. A plug-in structure 172 is provided on the side of the compartment cover 17 away from the second latching arm 171. The plug-in structure 172 is plugged into the cylindrical outer shell 13 or the compartment body 161. The plug-in method used to limit the position of the compartment cover 17 is more stable than a latching method and can effectively prevent the compartment cover 17 from detaching from the compartment body 161 from the plugged side.

[0134] In one embodiment, such as Figure 11 , Figure 12 As shown, the plug-in structure 172 is provided on one side of the compartment cover 17. The plug-in structure 172 is plugged into the cylindrical outer shell 13. The side of the compartment cover 17 away from the plug-in structure 172 is snapped into the limiting shell 16. The inner wall of the cylindrical outer shell 13 away from the second snap-fit ​​arm 171 is provided with a plug-in position 135. During the installation of the compartment cover 17, the plug-in structure 172 is first plugged into the plug-in position 135, and then the second snap-fit ​​unit 1711 is snapped into the first snap-fit ​​unit 1621.

[0135] Furthermore, such as Figure 10 and Figure 12 As shown, the cylindrical outer shell 13 is provided with a mating groove 136 that is adapted to the second snap-fit ​​arm 171. The second snap-fit ​​arm 171 is embedded in the mating groove 136 so that the second snap-fit ​​arm 171 can extend to the corresponding position of the first snap-fit ​​unit 1621, thereby the second snap-fit ​​unit 1711 can snap onto the first snap-fit ​​unit 1621; the second snap-fit ​​arm 171 will be embedded in the mating groove 136 to close the mating groove 136.

[0136] In some embodiments, such as Figure 14 As shown, a limiting wall 1611 is provided at the upper end of one side of the compartment 161, and an abutment protrusion (not shown) is provided on the side wall of the other side. The limiting wall 1611 abuts against the upper surface of the button battery 15, and the abutment protrusion abuts against the side of the button battery 15. The upper end of the compartment 161 is open, and the button battery 15 is inserted into the compartment 161 from the upper end of the compartment 161. The first circuit board 11 is soldered with a positive electrode spring 113 and a negative electrode spring 114. The positive electrode spring 113 abuts against the side of the button battery 15, and the negative electrode spring 114 abuts against the bottom surface of the button battery 15. The compartment 161 has square through holes at corresponding positions of the positive electrode spring 113 and the negative electrode spring 114, and the square through holes are used for the positive electrode spring 113 and the negative electrode spring 114 to pass through.

[0137] When installing the button battery 15, first insert one side of the battery under the limiting wall 1611, and then press the entire button battery 15 into the compartment 161. In the prior art, since the limiting wall 1611 is generally not located at the corresponding position of the positive electrode spring 113, the lower surface of the button battery 15 may simultaneously touch the positive electrode spring 113 and the negative electrode spring 114 during the process of pressing the button battery 15 into the compartment 161, causing damage to the first circuit board 11. Therefore, in this embodiment of the utility model, the positive electrode spring 113 is disposed at the corresponding position of the limiting wall 1611, ensuring that when the button battery 15 is inserted below the limiting wall 1611, the side of the button battery 15 abuts against the positive electrode spring 113. At this time, the end of the button battery 15 near the positive electrode spring 113 is tilted downward, so the lower surface of the button battery 15 cannot contact the positive electrode spring 113, thus avoiding short circuit between the positive electrode spring 113 and the negative electrode spring 114. When the button battery 15 is pressed into the compartment 161, the lower surface of the button battery 15 abuts against the negative electrode spring 114.

[0138] Existing human body sensors typically mount the lens housing at the end of the outer shell, with a connector ring on the back of the lens housing and a connector groove at the end of the outer shell that fits the connector ring. During assembly, glue must first be applied around the connector ring before inserting the connector ring into the connector groove. Attention must also be paid to the positioning structure between the connector ring and the connector groove, resulting in low assembly efficiency.

[0139] To solve the above problems, in the embodiments of this utility model, such as Figure 11 , Figure 18 and Figure 19 As shown, the detection body 1 includes: a first circuit board 11, a lens carrier 14, and a limiting housing 16; the first circuit board 11 is disposed inside the cylindrical housing 13, and the first circuit board 11 is provided with an infrared pyroelectric module 111; the lens carrier 14 is installed on the side of the cylindrical housing 13, and the lens carrier 14 includes a lens assembly 141, which is used to focus infrared light onto the infrared pyroelectric module 111; the limiting housing 16 is disposed at the end of the cylindrical housing 13, and the limiting housing 16 accommodates a button battery 15, and the first circuit board 11, the lens carrier 14, and the button battery 15 are all limited by the limiting housing 16. During assembly, the first circuit board 11 and the lens carrier 14 are simply placed into their corresponding positions inside the cylindrical housing 13, and then the limiting housing 16 is installed into the cylindrical housing 13. The limiting housing 16 can limit the first circuit board 11 and the lens carrier 14, which greatly improves the assembly efficiency. In addition, the limiting housing 16 is also used to accommodate the button battery 15, realizing the diversification of the function of the limiting housing 16, thereby simplifying the internal structure of the detection body 1, reducing the number of parts, and helping to reduce the volume of the detection body 1.

[0140] The limiting housing 16 is recessed towards the interior of the cylindrical outer shell 13 to form the compartment 161, and the button battery 15 is installed inside the compartment 161. The lens carrier 14 includes an arched sheet 142 and the lens assembly 141, the lens assembly 141 being integrally formed on the back side of the arched sheet 142.

[0141] Furthermore, such as Figure 11 As shown, the limiting housing 16 is embedded in the cylindrical outer shell 13, and the side of the limiting housing 16 is engaged with the inner wall of the cylindrical outer shell 13. Further, the limiting housing 16 includes a cylindrical compartment 161, the size of which is adapted to the internal dimensions of the cylindrical outer shell 13. The limiting housing 16 covers the top of the cylindrical outer shell 13, thereby limiting the first circuit board 11 inside the cylindrical outer shell 13. Figure 16 As shown, two long-arm latches 163 extend downward from the side of the limiting housing 16 near the second latching arm 171. The latching directions of the two long-arm latches 163 are opposite. A slot 164 is provided on the side of the limiting housing 16 away from the second latching arm 171, as shown. Figure 20 As shown, a third buckle 1371 is provided on the inner wall of the cylindrical outer shell 13 at the position corresponding to the long arm buckle 163, and a fourth buckle 1372 is provided at the position corresponding to the slot 164. The long arm buckle 163 is engaged with the third buckle 1371, and the slot 164 is engaged with the fourth buckle 1372, thereby realizing the stable connection of the limiting shell 16 to the inside of the cylindrical outer shell 13.

[0142] Furthermore, such as Figure 12 and Figure 13 As shown, the detection body 1 also includes a cover 17, which is disposed on the limiting housing 16. The button battery 15 is constrained between the limiting housing 16 and the cover 17. The cover 17 is limited by the limiting housing 16, thereby realizing the diversification of the function of the limiting housing 16 and simplifying the structure of the detection body 1. The cover 17 is disposed on the top of the cylindrical outer shell 13, sealing the top of the cylindrical outer shell 13. The technical details of the cover 17 have been described in detail above and will not be repeated here.

[0143] In some embodiments, such as Figure 14 As shown, the first circuit board 11 and the button battery 15 are respectively located on both sides of the limiting housing 16. The first circuit board 11 is soldered with a positive electrode spring 113 and a negative electrode spring 114. The positive electrode spring 113 and the negative electrode spring 114 pass through the limiting housing 16 and abut against the button battery 15.

[0144] Furthermore, such as Figure 11As shown, the first circuit board 11 is limited by the limiting housing 16 and the cylindrical outer shell 13. Further, as... Figure 20 As shown, the inner walls of the cylindrical outer casing 13 are respectively provided with first sliding grooves 1373, and the two sides of the first circuit board 11 slide into the first sliding grooves 1373 respectively. Figure 16 and Figure 18 As shown, the limiting housing 16 is provided with a first limiting groove 165, one end of the first circuit board 11 is limited by the first limiting groove 165, and the other end abuts against the cylindrical housing 13.

[0145] Furthermore, the first slide groove 1373 extends vertically, and the first circuit board 11 slides into the first slide groove 1373 from top to bottom. The bottom of the first circuit board 11 abuts against the bottom wall of the cylindrical housing 13, and the top of the first circuit board 11 is inserted into the first limiting groove 165, with its top surface abutting against the top of the first limiting groove 165. Furthermore, there are two first limiting grooves 165, distributed on both sides of the bottom of the limiting housing 16. The two first limiting grooves 165 together limit the first circuit board 11, thereby ensuring that the first circuit board 11 is stably and precisely limited.

[0146] In some embodiments, such as Figures 14-18 As shown, the detection body 1 also includes a second circuit board 12, which is equipped with a radar module 124. The second circuit board 12 is limited by the limiting housing 16 and the cylindrical outer shell 13. When the limiting housing 16 is installed into the cylindrical outer shell 13, the second circuit board 12 can be limited, thereby improving assembly efficiency and eliminating the need for additional parts to limit the second circuit board 12, making the internal structure of the detection body 1 more compact.

[0147] Furthermore, such as Figure 15 , Figure 17 and Figure 18 As shown, the second circuit board 12 is parallel to the first circuit board 11. The second circuit board 12 and the first circuit board 11 are connected as a whole by pin header 121 and nut header 115 and installed into the cylindrical housing 13, thereby improving assembly efficiency and improving the relative positional accuracy between the first circuit board 11 and the second circuit board 12.

[0148] Furthermore, such as Figure 17As shown, the side of the first circuit board 11 facing the second circuit board 12 is provided with two female connectors 115, and the side of the second circuit board 12 facing the first circuit board 11 is provided with two male connectors 121. The two male connectors 121 are respectively inserted into the two female connectors 115. When the second circuit board 12 is inserted into the female connectors 115 through the male connectors 121, the positional relationship between the second circuit board 12 and the first circuit board 11 can be accurately positioned, allowing the second circuit board 12 and the first circuit board 11 to be smoothly installed into the cylindrical housing 13, improving assembly efficiency. Furthermore, the distribution direction of the two female connectors 115 is perpendicular to the extension direction of the first groove 1373.

[0149] In some embodiments, such as Figure 20 As shown, the inner walls of the cylindrical outer casing 13 are respectively provided with second sliding grooves 1374, and the two sides of the second circuit board 12 slide into the second sliding grooves 1374 respectively; Figure 16 and Figure 18 As shown, the limiting housing 16 is provided with a second limiting groove 166, one end of the second circuit board 12 is limited by the second limiting groove 166, and the other end abuts against the cylindrical outer shell 13.

[0150] Furthermore, the second slide groove 1374 extends vertically, and the second circuit board 12 slides into the second slide groove 1374 from top to bottom. The bottom of the second circuit board 12 abuts against the bottom wall of the cylindrical housing 13, and the top of the second circuit board 12 is inserted into the second limiting groove 166, with its top surface abutting against the top of the second limiting groove 166. Furthermore, there are two second limiting grooves 166, distributed on both sides of the bottom of the limiting housing 16. The two second limiting grooves 166 together limit the second circuit board 12, thereby ensuring that the second circuit board 12 is stably and precisely positioned.

[0151] In some embodiments, such as Figure 15 As shown, one end of the cylindrical housing 13 is open, and the first circuit board 11, the lens carrier 14, and the limiting housing 16 are inserted into the cylindrical housing 13 through the open end; as Figure 19 and Figure 20 As shown, a third limiting groove 1375 is provided at the end of the cylindrical shell 13 away from the open end, and the first end (i.e., the lower end) of the lens carrier 14 is inserted into the third limiting groove 1375. Further, the top of the cylindrical shell 13 is open and the bottom is closed. Multiple limiting ribs extend upward from the bottom wall of the cylindrical shell 13 near the side wall. Each limiting rib is arranged along the side wall of the cylindrical shell 13. The bottom of the lens carrier 14 is sandwiched between the limiting ribs and the side wall of the cylindrical shell 13, forming the third limiting groove 1375, which is an arc-shaped groove.

[0152] like Figure 11 As shown, the limiting housing 16 is installed at the open end of the cylindrical outer shell 13, and the second end (i.e., the upper end) of the lens carrier 14, which is away from the first end, is inserted between the limiting housing 16 and the cylindrical outer shell 13; wherein, as Figure 16 As shown, a limiting arc groove 167 is provided on the side of the limiting housing 16 near the bottom. The limiting arc groove 167 surrounds half of the side of the limiting housing 16. When the limiting housing 16 is installed on the cylindrical outer shell 13, a limiting gap is formed between the limiting arc groove 167 and the side wall of the cylindrical outer shell 13. Figure 11 As shown, the upper end of the lens carrier 14 is inserted upward into the limiting gap, so that the upper end of the lens carrier 14 is clamped between the limiting housing 16 and the side wall of the cylindrical housing 13.

[0153] Furthermore, the second end, i.e. the upper end, of the lens carrier 14, and the first end, i.e. the lower end, of the lens carrier 14.

[0154] like Figure 16 As shown, the limiting housing 16 is provided with a third abutment wall at a position corresponding to the second end of the lens carrier 14. The third abutment wall is used to limit the end face of the second end of the lens carrier 14. The third abutment wall is the top wall of the limiting arc groove 167. When the limiting housing 16 is installed into the cylindrical outer shell 13, the upper end of the lens carrier 14 is inserted upward into the limiting gap, and the upper end face of the lens carrier 14 abuts against the third abutment wall or there is a small gap between the upper end face and the third abutment wall, thereby restricting the upward movement of the lens carrier 14 by the third abutment wall. Furthermore, the bottom of the lens carrier 14 abuts against the bottom wall of the third limiting groove 1375, thereby completely restricting the position of the lens limiting member in the vertical direction.

[0155] Furthermore, such as Figure 19 and Figure 20As shown, the lens carrier 14 includes an arched sheet 142 and a lens assembly 141 disposed on the back of the arched sheet 142. The arched sheet 142 includes a first side and a second side located between the first end and the second end. The cylindrical housing 13 is provided with a fourth limiting groove 1376 and a fifth limiting groove at corresponding positions on the first and second sides of the arched sheet 142, respectively. The first side and the second side are respectively inserted into the fourth limiting groove 1376 and the fifth limiting groove. The fourth limiting groove 1376 and the fifth limiting groove limit the two sides of the arched sheet 142 to restrict the shape of the arched sheet 142. Further, the first side and the second side of the arched sheet 142 are the left side and the right side, respectively. Long strip ribs extend upward from both sides of the bottom wall of the cylindrical housing 13, and the fourth limiting groove 1376 and the fifth limiting groove are formed between the long strip ribs and the inner wall of the cylindrical housing 13.

[0156] Furthermore, such as Figure 19 and Figure 20 As shown, the cylindrical outer shell 13 is provided with a first abutting wall 1377 and a second abutting wall at corresponding positions on the first and second sides of the arched sheet 142, respectively. The end faces of the first and second sides of the arched sheet 142 abut against the first abutting wall 1377 and the second abutting wall, respectively. The first abutting wall 1377 and the second abutting wall provide abutting force to the two sides of the arched sheet 142 to support the two sides of the arched sheet 142, so that it fits against the inner wall of the cylindrical outer shell 13 and maintains the arch shape. When the arched sheet 142 is subjected to external pressure, the first abutting wall 1377 and the second abutting wall can support the arched sheet 142 without deformation.

[0157] like Figure 19 As shown, the lower end of the arched sheet 142 is inserted into the third limiting groove 1375. The third limiting groove 1375 can support the inner side of the arched sheet 142, allowing the lower part of the arched sheet 142 to resist external pressure. However, the upper end of the inner wall of the arched sheet 142 lacks support and is at risk of deformation under external pressure. Therefore, in a further embodiment, as... Figure 21 As shown, the arched sheet 142 has protrusions 1421 on both sides facing the sides. The protrusions 1421 are located on the upper part of the arched sheet 142 and are used to abut against the first abutment wall 1377 and the second abutment wall, which makes the supporting force on both sides of the upper part of the arched sheet 142 stronger, improves the deformation resistance of the upper part of the arched sheet 142, and allows the upper part of the arched sheet 142 to be tightly attached to the inner wall of the cylindrical shell 13.

[0158] Furthermore, such as Figure 16As shown, when the limiting housing 16 is inserted into the cylindrical housing 13, the top wall (i.e., the third abutment wall) of the limiting arc groove 167 of the limiting housing 16 restricts the upward movement of the second end of the lens carrier 14; in addition, as Figure 19 As shown, a limiting block 1378 is provided on the inner wall of the cylindrical outer shell 13. The limiting block 1378 is used to limit the second end of the arched sheet 142. The limiting block 1378 and the third abutment wall both restrict the upward movement of the second end of the arched sheet 142. There is a certain distance between the limiting block 1378 and the second end of the arched sheet 142. When the third abutment wall restricts the arched sheet 142, the limiting block 1378 does not contact the arched sheet 142. The function of the limiting block 1378 is to prevent the arched sheet 142 from detaching from the cylindrical outer shell 13 when the limiting shell 16 is not installed in the cylindrical outer shell 13, so that the arched sheet 142 and the cylindrical outer shell 13 maintain an assembled relationship.

[0159] Because a Fresnel lens is integrally formed on the back of the arched sheet 142, the injection molding of the arched sheet 142 is quite difficult. Therefore, in this embodiment of the invention, as follows... Figure 21 As shown, the arched sheet 142 can be unfolded into a flat plate shape, so that the arched sheet 142 can be processed into a flat plate structure first, and then rolled into an arch shape, which greatly reduces the processing difficulty.

[0160] In one embodiment, such as Figure 21 and Figure 19 As shown, the lens assembly 141 is composed of multiple lens units 1411 spliced ​​together. Each lens unit 1411 is constructed as a Fresnel lens, and each lens unit 1411 is integrally formed on the arched thin sheet 142. The lens assembly 141 has a left-right symmetrical design, including 10 small lens units 1411 located in the middle, and one large lens unit 1411 located at the left and right ends. The 10 small lens units 1411 in the middle are distributed in two layers, with 5 lens units 1411 arranged side by side in each layer.

[0161] The infrared pyroelectric module 111 can only detect moving infrared heat sources. When a person is stationary (such as sitting or sleeping), the infrared pyroelectric module 111 cannot detect the human body. In contrast, the radar module 124 can detect minute movements of the human body, including breathing and heartbeat. Therefore, even when a person is stationary, the radar can continuously detect the human body, compensating for the limitation of the infrared pyroelectric module 111. Furthermore, the radar module 124 is very sensitive and may sometimes misinterpret the movement of curtains or a fan as the presence of someone. The infrared pyroelectric module 111 is not sensitive to the movement of non-heat sources, which compensates for the radar module 124's tendency to misinterpret. Moreover, the radar module 124 needs to continuously emit radar waves even when no one is present, which is active detection and consumes more power. The infrared pyroelectric module 111, on the other hand, passively detects infrared heat sources, making it more energy-efficient.

[0162] The human body detection device 100 provided by this utility model integrates an infrared pyroelectric module 111 and a radar module 124, and organically combines the two: when there is no one in the detection area, the radar module 124 stops working, relying solely on infrared pyroelectric detection, which not only saves power but also avoids the radar module 124 being falsely triggered; when there is someone in the detection area, the radar module 124 is activated, and detection by the radar module 124 avoids the inability to detect stationary human bodies. By complementing the advantages of the radar module 124 and the infrared pyroelectric module 111, the performance of the human body detection device 100 is greatly improved.

[0163] In terms of structural design, simply combining the radar module 124 and the infrared pyroelectric module 111 together would result in a complex and bulky outer shell and internal structure, increasing the overall size.

[0164] To solve the above problems, in the embodiments of this utility model, such as Figure 11 , Figures 15-21 As shown, an infrared pyroelectric module 111 and a radar module 124 are housed inside the cylindrical outer shell 13. A detection window 131 is opened on the side of the cylindrical outer shell 13, which is blocked by the arched thin plate 142. A lens assembly 141 is integrally formed on the back of the arched thin plate 142. The lens assembly 141 is used to focus infrared light onto the infrared pyroelectric module 111, and the radar wave emitted by the radar module 124 passes through the arched thin plate 142 and is emitted outward. The infrared pyroelectric module 111 and the radar module 124 share a single detection window 131, making the structure more compact.

[0165] Furthermore, in existing technologies, radar waves are emitted directly through the outer casing. The radar waves are reflected back by objects outside the casing and then pass through the casing again to reach the radar module 124. The radar module 124 determines whether there is a moving person / object within the detection area based on the reflected wave. Because the outer casing is relatively thick, it attenuates the radar waves, affecting the performance of the radar module 124. In this embodiment, however, both the radar wave and the reflected wave pass through the arched sheet 142. Thanks to the thinner arched sheet 142, the radar wave experiences less attenuation as it passes through, resulting in better performance of the radar module 124.

[0166] It is worth mentioning that the arched thin plate 142 has a large circumferential angle in the horizontal direction, which allows radar waves of a large range in the horizontal direction to pass through the arched thin plate 142, which is beneficial for the radar module 124 to detect a large range in the horizontal direction.

[0167] In one embodiment, the infrared pyroelectric module 111 uses a binary pyroelectric infrared sensor with model number Z142M7 from Wuxi Ziliang Sensing Technology Co., Ltd.; the radar module 124 uses a 24GHz millimeter-wave radar sensor with model number MRS261L from Zhenghe Microchip.

[0168] Furthermore, such as Figure 18 and Figure 21 As shown, the arched sheet 142 includes a lens region where the lens assembly 141 is disposed, and a smooth region where the lens assembly 141 is not disposed. The smooth region covers the radar module 124, while the lens region does not cover the radar module 124. Since the lens assembly 141 is composed of multiple Fresnel lenses, and Fresnel lenses have multi-layered annular textures, the thickness of the arched sheet 142 varies significantly in the lens region. In this embodiment, the radar module 124 is disposed within the smooth region, allowing most radar waves to pass through the smooth region, thus avoiding any adverse effects of the lens assembly 141 on the radar waves.

[0169] Among them, such as Figure 18 As shown, the fact that the lens region does not cover the radar module 124 can be understood as the projection of the lens region onto the plane where the radar module 124 is located having no overlapping area with the radar module 124.

[0170] In some embodiments, such as Figure 17 and Figure 18As shown, the cylindrical outer shell 13 contains a first circuit board 11 and a second circuit board 12. The infrared pyroelectric module 111 is disposed on the first circuit board 11, and the radar module 124 is disposed on the second circuit board 12. The second circuit board 12 is located between the first circuit board 11 and the arched sheet 142. A first through slot 122 is formed on the second circuit board 12 at the corresponding position of the infrared pyroelectric module 111. According to the focusing principle of the lens assembly 141, there must be a focusing distance between the lens assembly 141 and the infrared pyroelectric module 111 to allow the light to converge. In this embodiment, the second circuit board 12 is disposed between the first circuit board 11 and the lens assembly 141, making reasonable use of the space generated by this focusing distance, resulting in higher space utilization and a more compact structure.

[0171] Furthermore, the first circuit board 11 and the second circuit board 12 are stacked radially along the cylindrical shell 13, which makes reasonable use of the radial space of the cylindrical shell 13 and avoids the infrared pyroelectric module 111 and the radar module 124 being placed on the same circuit board, resulting in an excessively large circuit board.

[0172] The first through slot 122 is located at the edge of the second circuit board 12 and extends through the second circuit board 12 to allow infrared light to pass through, preventing the second circuit board 12 from blocking the converged infrared light and causing the infrared pyroelectric module 111 to malfunction. The top of the second circuit board 12 is limited by the limiting housing 16 in the areas on both sides of the first through slot 122 to improve the stability of the second circuit board 12.

[0173] Furthermore, such as Figure 17 and Figure 18 As shown, the first circuit board 11 is provided with a brightness sensor 116, and a pad 117 is provided between the brightness sensor 116 and the first circuit board 11, supporting the brightness sensor 116. The second circuit board 12 has a second through slot 123 at the corresponding position of the brightness sensor 116, and the brightness sensor 116 is embedded in the second through slot 123. Ambient light shines on the brightness sensor 116 through the arched sheet 142. The pad 117 supports the brightness sensor 116 so that the end face of the brightness sensor 116 protrudes from the side of the second circuit board 12 facing the arched sheet 142, preventing the second circuit board 12 from blocking the light, thereby enabling the brightness sensor 116 to sense ambient light more accurately.

[0174] Furthermore, the pad 117 is constructed as a plastic cylinder, and the brightness sensing element 116 is a photoresistor, with the leads of the photoresistor passing through the plastic cylinder and soldered to the first circuit board 11.

[0175] Furthermore, such as Figure 17As shown, the second circuit board 12 is provided with an LED indicator 125 facing the lens carrier 14, and the light emitted by the LED indicator 125 passes through the lens carrier 14 and shines outward.

[0176] Furthermore, such as Figure 17 As shown, an onboard antenna 118 is disposed near the side edge of the first circuit board 11. The second circuit board 12 is recessed inward on both sides to avoid blocking the signal of the onboard antenna 118.

[0177] In some embodiments, such as Figure 11 As shown, the limiting housing 16 is installed at the open end of the cylindrical outer shell 13. The limiting housing 16 is provided with a first limiting groove 165 and a second limiting groove 166. The first circuit board 11 is limited by the first limiting groove 165, and the second circuit board 12 is limited by the second limiting groove 166.

[0178] Most small solar panels on the market do not have energy storage capabilities. This is because the advantage of small solar panels lies in their compact size and thinness. Installing rechargeable batteries inside would significantly increase their size, limiting their application scenarios. Furthermore, because small solar panels lack energy storage, they cannot provide power at night, and the powered devices must have rechargeable batteries to operate with them, making their usage conditions quite demanding.

[0179] To solve the above problems, in the embodiments of this utility model, such as Figure 3 , Figures 22-29 As shown, a solar power generation component 3 is provided, suitable for powering electronic devices with low power demand, such as sensors. The solar power generation component 3 includes a housing component 35, a solar panel 31, and a third circuit board 32. The solar panel 31 is mounted on one side of the housing component 35; the third circuit board 32 is disposed inside the housing component 35 and is electrically connected to the solar panel 31; wherein, the third circuit board 32 has a receiving portion 321, and the third circuit board 32 is provided with at least one energy storage capacitor 33, which is horizontally embedded in the receiving portion 321, and the leads of the energy storage capacitor 33 are bent and soldered to the third circuit board 32.

[0180] In this embodiment of the invention, an energy storage capacitor 33 is installed inside the solar power generation component 3, so that the electricity generated by the solar power generation component 3 during the day can be stored for use at night, thereby achieving uninterrupted power supply 24 hours a day.

[0181] The photovoltaic power generation component 3 provided by this utility model uses an energy storage capacitor 33 as an energy storage element, which saves more space than a rechargeable battery. The energy storage capacitor 33 is embedded in the third circuit board 32 in a horizontal position, so that the energy storage capacitor 33 changes from a state perpendicular to the third circuit board 32 to a state inclined or parallel to the third circuit board 32. As a result, the height of the energy storage capacitor 33 protruding from the third circuit board 32 is greatly reduced, and the thickness of the photovoltaic power generation component 3 can be controlled.

[0182] The receiving portion 321 can be a through hole or a through groove located on the edge of the third circuit board 32. The "lying down" can be understood as the capacitor changing from a state perpendicular to the third circuit board 32 to a state tilted or parallel to the third circuit board 32.

[0183] Furthermore, such as Figure 24 and Figure 28 As shown, the receiving portion 321 is constructed as a receiving hole, and the energy storage capacitor 33 includes a cylindrical capacitor post and the pin disposed at the end of the capacitor post. The capacitor post is embedded in the receiving hole, and the axial direction of the capacitor post is parallel to the third circuit board 32, so that the energy storage capacitor 33 protrudes from the third circuit board 32 at a lower height, and the thickness of the photovoltaic power generation component 3 can be further reduced.

[0184] Furthermore, such as Figure 23 As shown, the capacitor pillar protrudes from both sides of the third circuit board 32, thereby making full use of the space on the upper and lower sides of the third circuit board 32 to place the capacitor pillar, further reducing the height of the energy storage capacitor 33 protruding from the third circuit board 32.

[0185] In some embodiments, such as Figures 22-26 As shown, the energy storage capacitor 33 is a single lithium-ion capacitor. Lithium-ion capacitors have the advantage of ultra-large capacity, capable of storing more electrical energy; however, multiple lithium-ion capacitors cannot be connected in parallel, therefore this embodiment uses only one lithium-ion capacitor. In one embodiment, the lithium-ion capacitor is a 15-farad lithium-ion capacitor.

[0186] In another embodiment, such as Figures 27-28 As shown, this embodiment is similar to Figures 22-26 The difference in this embodiment lies in that: there are multiple energy storage capacitors 33, and the capacitor columns of each energy storage capacitor 33 are arranged coaxially; the position and number of the receiving holes are adapted to the capacitor columns; and the energy storage capacitors 33 are supercapacitors. Although the capacity of a supercapacitor is smaller than that of a lithium-ion capacitor, it can be expanded by connecting them in parallel. In this embodiment, there are two energy storage capacitors 33, which are connected in parallel to increase the total capacity.

[0187] It is worth mentioning that, such as Figure 27 As shown, thanks to the ability of supercapacitors to be connected in parallel, this embodiment can use multiple photovoltaic power generation modules connected end to end, thereby increasing the total power generation and total energy storage. Furthermore, the supercapacitor is a 1-farad supercapacitor.

[0188] exist Figures 27-28 In the illustrated embodiment, a USB plug is soldered to one end of the third circuit board 32, protruding from the housing assembly 35. A USB female connector 36 is soldered to the end of the third circuit board 32 away from the USB plug. The housing assembly 35 has a connector hole 3526 at the corresponding position of the USB female connector 36. The USB plug, the USB female connector 36, and each of the energy storage capacitors 33 are arranged in a straight line in a third direction. Both the USB plug and the USB female connector 36 are embedded in the third circuit board 32. Using a plane perpendicular to the third direction as the projection plane, the USB plug projects onto the projection plane to form a first projection pattern, and the USB female connector 36 projects onto the projection plane to form a second projection pattern. The second projection pattern covers the first projection pattern. Thus, when multiple photovoltaic power generation components 3 are connected end to end, each photovoltaic power generation component 3 can be connected in a straight line.

[0189] In addition to the differences mentioned above, Figures 27-28 Other structures of the embodiments and Figures 1-26 The embodiments are the same. In Figure 28 The double-sided adhesive 39 is not shown in the image.

[0190] In some embodiments, such as Figure 22 , Figure 23 and Figure 28 As shown, the outer casing assembly 35 includes a base shell 352 and an arched shell 351 fastened to the base shell 352. The arched shell 351 arches outward and includes an arched portion 3511 with the highest arch amplitude. The energy storage capacitor 33 is housed inside the arched portion 3511. The arched portion 3511 is located in the middle of the arched shell 351, resulting in an outer casing assembly 35 with a thicker middle and thinner sides. Because the energy storage capacitor 33 is relatively large, placing it in the arched portion 3511 maximizes its volume, ensuring its capacity. Furthermore, the photovoltaic power generation assembly 3 will not have its rotation angle range affected by the excessively large volume of the energy storage capacitor 33.

[0191] like Figure 1As shown, since the photovoltaic power generation component 3 is located in the right-angle space formed between the first adjusting member 21 and the second adjusting member 22, during horizontal rotation, the two sides of the photovoltaic power generation component 3 will interfere with the vertically positioned second adjusting member 22, resulting in a limited rotation angle for the photovoltaic power generation component 3. Therefore, the photovoltaic power generation component 3 can only rotate within the specified angle. While narrowing the width of the photovoltaic light-emitting device can expand the specified angle, the photovoltaic power generation efficiency will be greatly reduced. This embodiment of the invention designs the shape of the outer shell component 35 to make its two sides thinner, allowing the photovoltaic light-emitting component to rotate a wider range of angles while ensuring sufficient width, thus expanding the specified angle.

[0192] Furthermore, such as Figure 3 and Figure 2 As shown, the arched portion 3511 extends toward a third direction. Since the third direction is in the same direction as the axial direction of the detection body 1, the arched portion 3511 will not affect the rotation angle range of the photovoltaic power generation component 3, and the internal space of the arched portion 3511 can accommodate a larger energy storage capacitor 33.

[0193] Furthermore, such as Figure 24 and Figure 23 As shown, a USB plug is soldered to one end of the third circuit board 32. The USB plug protrudes from the housing assembly 35. The USB plug and each of the energy storage capacitors 33 are arranged in a straight line in the third direction, such that a portion of the USB plug is located inside the arched portion 3511. The USB plug is embedded in the third circuit board 32 so that it is located in the middle position at the end of the housing assembly 35, avoiding excessive obstruction of the button 1331 of the detection body 1 by the housing assembly 35. Figure 22 As shown, a USB through hole 3521 is provided at the end of the base shell 352. When assembling the third circuit board 32, the USB plug is first passed through the USB through hole 3521, then the third circuit board 32 is placed on the base shell 352, and finally the arched shell 351 is fastened to the base shell 352.

[0194] In some embodiments, such as Figure 23 , Figure 25 and Figure 28As shown, the arched portion 3511 is provided with a test button 3512 and a light-emitting hole 3513. The third circuit board 32 is provided with a detection switch 37 and a light-emitting element 38 at corresponding positions of the test button 3512 and the light-emitting hole 3513, respectively. The test element can be pressed to trigger the detection switch 37, and the light-emitting element 38 illuminates in response to the triggering of the detection switch 37. Both the detection switch 37 and the light-emitting element 38 are housed inside the arched portion 3511, ensuring that the detection switch 37 and the light-emitting element 38 do not increase the thickness of other parts of the housing assembly 35. The test button 3512 detects whether the charge of the energy storage capacitor 33 is greater than a certain value. The light-emitting element 38 uses a blue LED. The minimum voltage at which the blue LED begins to emit a faint light is 2.8V. When the voltage of the energy storage capacitor 33 is greater than 2.8V, pressing the test button 3512 will illuminate the light-emitting element 38. The voltage of the energy storage capacitor 33 reflects the current stored charge.

[0195] Furthermore, the detection switch 37 is a tactile switch. For example... Figure 22 , Figure 23 and Figure 28 As shown, the test key 3512 and the arched portion 3511 are connected by a button arm 1331. The extending direction of the button arm 1331 is parallel to the extending direction of the arched portion 3511. The test key 3512 and the button arm 1331 are integrally formed in the arched portion 3511. Further, the outer surface of the arched portion 3511 is flush with the outer surface of the test key 3512. Further, as... Figure 23 As shown, the back of the test key 3512 has a protruding trigger protrusion, which is used to trigger the electronic switch 126.

[0196] Furthermore, such as Figure 23 and Figure 25 As shown, a light-shielding ring extends downward around the light-emitting hole 3513, and the lower end of the light-shielding ring abuts against the third circuit board 32. A light-shielding cavity 3514 is formed between the light-shielding ring and the third circuit board 32, and the light-emitting element 38 is disposed inside the light-shielding cavity 3514.

[0197] In some embodiments, such as Figure 22 As shown, the third circuit board 32 is located between the base shell 352 and the arched shell 351, and the solar panel 31 is located on the side of the base shell 352 opposite to the arched shell 351; the solar panel 31 is bonded to the base shell 352, and double-sided adhesive 39 is attached to the back of the solar panel 31, and the solar panel 31 is bonded to the base shell 352 by the double-sided adhesive 39.

[0198] like Figure 22As shown, the back of the solar panel 31 is provided with a positive electrode contact 312 and a negative electrode contact 313. The positive electrode contact 312 and the negative electrode contact 313 are located at both ends of the solar panel 31. The double-sided adhesive tape 39 is cut to blank at the corresponding positions of the positive electrode contact 312 and the negative electrode contact 313. Figure 26 and Figure 24 As shown, the third circuit is provided with spring-loaded conductive bases 322 that abut against the positive contact 312 and the negative contact 313, respectively. The base shell 352 has openings that allow the spring-loaded conductive bases 322 to pass through the base shell 352 and abut against the positive contact 312 and the negative contact 313. The base shell 352 has a mounting groove 3522 on the side facing the solar panel 31. The size of the mounting groove 3522 is adapted to the solar panel 31, and the solar panel 31 is embedded in the mounting groove 3522. The double-sided adhesive 39 is attached to the bottom surface of the mounting groove 3522.

[0199] like Figure 25 As shown, the third circuit board 32 is clamped and fixed by the base shell 352 and the arched shell 351. The base shell 352 is provided with four positioning ribs 3525 and multiple support ribs protruding towards the third circuit board 32. The four positioning ribs 3525 are inserted into the third circuit board 32, thereby positioning the third circuit board 32 in the horizontal direction. The support ribs abut against the lower surface of the third circuit board 32. The arched shell 351 is provided with multiple pressing ribs 3515 facing the third circuit board 32. The pressing ribs 3515 abut against the upper surface of the third circuit board 32. The base shell 352 is fastened to the arched shell 351, thereby clamping and fixing the third circuit board 32 by the base shell 352 and the arched shell 351.

[0200] Furthermore, such as Figure 25 As shown, the arched shell 351 has multiple first fastening buckles 3516 on each side, and the base shell 352 has corresponding second fastening buckles 3523. The first fastening buckles 3516 are fastened to the second fastening buckles 3523 to achieve a fixed connection between the arched shell 351 and the base shell 352. Specifically, the arched shell 351 has three first fastening buckles 3516 on each side.

[0201] Furthermore, such as Figure 26 , Figure 23 and Figure 28 As shown, the base shell 352 has a receiving through hole 3524 at the corresponding position of the energy storage capacitor 33, and a portion of the energy storage capacitor 33 is recessed into the receiving through hole 3524. This allows the thickness of the base shell 352 to accommodate the energy storage capacitor 33, reducing the thickness occupied by the energy storage capacitor 33 and thus reducing the thickness of the outer shell assembly 35.

[0202] Furthermore, such as Figure 23As shown, a thinning groove 3517 is provided on the inner side of the arched shell 351 at the position corresponding to the energy storage capacitor 33. The thinning groove 3517 is used to reduce the wall thickness of the arched shell 351, thereby accommodating a larger volume energy storage capacitor 33.

[0203] In another embodiment, such as Figure 29 As shown, this embodiment is similar to Figures 1-26 The difference in this embodiment is that the plug 34 of the photovoltaic power generation component 3 is changed from a USB plug to a DC power plug, and the USB port of the detection body 1 is changed to a DC power port. The advantage of this design is that, since the DC power plug is cylindrical, the photovoltaic power generation component 3 can rotate around the DC power plug after being plugged into the detection body 1, allowing for separate adjustment of the detection direction and the light receiving direction. This ensures that the light receiving surface 311 faces the light source, improving power generation efficiency and allowing for more accurate control of the detection range. Other structures in this embodiment are similar to... Figures 1-26 The embodiments shown are the same, and will not be described again here.

[0204] There are two common types of human presence sensors on the market: those that rely on infrared pyroelectric modules and those that rely on radar modules. Infrared pyroelectric modules can only detect moving infrared heat sources. When a person is stationary (such as sitting or sleeping), the infrared pyroelectric module cannot detect them. Radar modules, on the other hand, can detect minute movements of the human body, including breathing and heartbeat. Therefore, even when a person is stationary, radar can continuously detect them, compensating for the limitation of infrared pyroelectric modules. Furthermore, radar modules are very sensitive and may sometimes misinterpret the movement of curtains or a fan as the presence of someone. Infrared pyroelectric modules are not sensitive to the movement of non-heat sources, which compensates for the misinterpretation problem of radar modules. Moreover, radar modules need to continuously emit radar waves even when no one is present, which is active detection and consumes more power. In contrast, infrared pyroelectric modules passively detect infrared heat sources, making them more energy-efficient.

[0205] With the continuous development of human body sensors, a human presence sensor integrating an infrared pyroelectric module and a radar module has gradually emerged. This sensor complements the advantages of the radar module and the infrared pyroelectric module, improving the sensor's performance. However, the structural design of this human presence sensor simply combines the radar module and the infrared pyroelectric module together, resulting in a complex and bulky outer shell and internal structure, and an increased overall size.

[0206] To solve the above problems, according to the second aspect of this utility model, as follows: Figures 1-29 As shown, a human body detection device 100 is provided, wherein the structure of the human body detection device 100 is the same as that of the human body detection device 100 provided in the first aspect of this utility model, and the technical details of its structure can be referred to the above description. Figure 11, Figures 15-21 As shown, the human body detection device 100 includes a cylindrical housing 13 and an infrared pyroelectric module 111 and a radar module 124 disposed inside the cylindrical housing 13. A detection window 131 is opened on the side of the cylindrical housing 13, and the detection window 131 is blocked by an arched thin plate 142. A lens assembly 141 is integrally formed on the back of the arched thin plate 142. The lens assembly 141 is used to focus infrared light onto the infrared pyroelectric module 111, and the radar waves emitted by the radar module 124 pass through the arched thin plate 142 and are emitted outwards. The infrared pyroelectric module 111 and the radar module 124 share a single detection window 131, making the structure more compact.

[0207] Furthermore, in existing technologies, radar waves are emitted directly through the outer casing. The radar waves are reflected back by objects outside the casing and then pass through the casing again to reach the radar module 124. The radar module 124 determines whether there is a moving person / object within the detection area based on the reflected wave. Because the outer casing is relatively thick, it attenuates the radar waves, affecting the performance of the radar module 124. In this embodiment, however, both the radar wave and the reflected wave pass through the arched sheet 142. Thanks to the thinner arched sheet 142, the radar wave experiences less attenuation as it passes through, resulting in better performance of the radar module 124.

[0208] It is worth mentioning that the arched thin plate 142 has a large circumferential angle in the horizontal direction, which allows radar waves of a large range in the horizontal direction to pass through the arched thin plate 142, which is beneficial for the radar module 124 to detect a large range in the horizontal direction.

[0209] The arched sheet 142 and the lens assembly 141 constitute the lens carrier 14 described above.

[0210] Furthermore, such as Figure 18 and Figure 21 As shown, the arched sheet 142 includes a lens region where the lens assembly 141 is disposed, and a smooth region where the lens assembly 141 is not disposed. The smooth region covers the radar module 124, while the lens region does not cover the radar module 124.

[0211] In some embodiments, such as Figure 17 and Figure 18 As shown, the cylindrical outer shell 13 is provided with a first circuit board 11 and a second circuit board 12. The infrared pyroelectric module 111 is disposed on the first circuit board 11, and the radar module 124 is disposed on the second circuit board 12. The second circuit board 12 is located between the first circuit board 11 and the arched sheet 142. The second circuit board 12 has a first through slot 122 at the position corresponding to the infrared pyroelectric module 111.

[0212] Furthermore, such as Figure 17 and Figure 18 As shown, the first circuit board 11 is provided with a brightness sensor 116, and a pad 117 is provided between the brightness sensor 116 and the first circuit board 11. The pad 117 supports the brightness sensor 116. The second circuit board 12 has a second through slot 123 at the corresponding position of the brightness sensor 116, and the brightness sensor 116 is embedded in the second through slot 123.

[0213] In some embodiments, such as Figure 15 , Figure 17 and Figure 18 As shown, the second circuit board 12 is parallel to the first circuit board 11, and the second circuit board 12 and the first circuit board 11 are connected as a whole and installed into the cylindrical housing 13 through pin header 121 and nut header 115.

[0214] Furthermore, such as Figure 20 As shown, the inner walls of the cylindrical outer shell 13 are respectively provided with first sliding grooves 1373 on both sides, and the two sides of the first circuit board 11 slide into the first sliding grooves 1373 respectively; the inner walls of the cylindrical outer shell 13 are respectively provided with second sliding grooves 1374 on both sides, and the two sides of the second circuit board 12 slide into the second sliding grooves 1374 respectively.

[0215] In some embodiments, such as Figure 15 As shown, one end of the cylindrical housing 13 is an open end, and the first circuit board 11 and the second circuit board 12 are inserted into the cylindrical housing 13 through the open end; as Figure 11 As shown, a limiting housing 16 is installed at the open end. The limiting housing 16 is provided with a first limiting groove 165 and a second limiting groove 166. The first circuit board 11 is limited by the first limiting groove 165, and the second circuit board 12 is limited by the second limiting groove 166.

[0216] Furthermore, such as Figure 14 As shown, the limiting housing 16 is recessed towards the interior of the cylindrical outer shell 13 to form a compartment 161, and a button battery 15 is installed inside the compartment 161; the first circuit board 11 is soldered with electrode springs, and the motor springs include a positive electrode spring 113 and a negative electrode spring 114, and the positive electrode spring 113 and the negative electrode spring 114 respectively pass through the limiting housing 16 and abut against the button battery 15.

[0217] In some embodiments, such as Figure 19As shown, one end of the cylindrical shell 13 is an open end, and the arched sheet 142 is inserted into the cylindrical shell 13 through the open end; a third limiting groove 1375 is provided at the end of the cylindrical shell 13 away from the open end, and the first end of the arched sheet 142 is inserted into the third limiting groove 1375.

[0218] like Figure 11 As shown, a limiting shell 16 is installed at the open end of the cylindrical shell 13, and the second end of the arched sheet 142, which is away from the first end, is inserted between the limiting shell 16 and the cylindrical shell 13.

[0219] Furthermore, such as Figure 19 and Figure 20 As shown, the arched sheet 142 includes a first side and a second side located between the first end and the second end. The cylindrical shell 13 is provided with a fourth limiting groove 1376 and a fifth limiting groove at corresponding positions on the first side and the second side of the arched sheet 142, respectively. The first side and the second side are respectively inserted into the fourth limiting groove 1376 and the fifth limiting groove.

[0220] Furthermore, such as Figure 19 and Figure 20 As shown, the cylindrical outer shell 13 is provided with a first abutting wall 1377 and a second abutting wall at corresponding positions on the first and second sides of the arched sheet 142, respectively, and the end faces of the first and second sides of the arched sheet 142 abut against the first abutting wall 1377 and the second abutting wall, respectively.

[0221] like Figure 16 As shown, the limiting housing 16 is provided with a third abutting wall at the position corresponding to the second end of the arched sheet 142, and the third abutting wall is used to abut the end face of the second end of the arched sheet 142.

[0222] like Figure 19 As shown, the inner wall of the cylindrical outer shell 13 is provided with a limiting block 1378, which is used to limit the second end of the arched sheet 142.

[0223] In some embodiments, such as Figure 21 As shown, the arched sheet 142 can be unfolded into a planar plate shape.

[0224] It should also be noted that the above embodiments can be combined with each other. For the same or similar concepts or processes, they may not be described again in some embodiments. That is, the technical solutions disclosed in the later (in the order of the text) embodiments should include the technical solutions described in this embodiment and the technical solutions described in all embodiments before this embodiment.

[0225] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A human body detection device characterized by comprising: It includes a cylindrical outer shell and an infrared pyroelectric module and a radar module disposed inside the cylindrical outer shell; The cylindrical shell has a detection window on its side, which is blocked by an arched sheet. A lens assembly is integrally formed on the back of the arched sheet. The lens assembly is used to focus infrared light onto the infrared pyroelectric module. The radar wave emitted by the radar module passes through the arched sheet and is emitted outward.

2. The human detection apparatus according to claim 1, characterized by, The arched sheet includes a lens region where the lens assembly is disposed, and a smooth region where the lens assembly is not disposed. The smooth region covers the radar module, while the lens region does not cover the radar module.

3. The human detection apparatus according to claim 1, characterized by, The cylindrical outer shell contains a first circuit board and a second circuit board. The infrared pyroelectric module is disposed on the first circuit board, and the radar module is disposed on the second circuit board. The second circuit board is located between the first circuit board and the arched sheet. The second circuit board has a first through slot at the position corresponding to the infrared pyroelectric module.

4. The human body detection device according to claim 3, characterized in that, The first circuit board is provided with a brightness sensor, and a pad is provided between the brightness sensor and the first circuit board to support the brightness sensor. The second circuit board has a second through slot at the corresponding position of the brightness sensor, and the brightness sensor is embedded in the second through slot.

5. The human body detection device according to claim 3, characterized in that, The second circuit board is parallel to the first circuit board, and the second circuit board and the first circuit board are integrated into the cylindrical housing via pin headers and socket headers.

6. The human body detection device according to claim 5, characterized in that, The inner wall of the cylindrical shell is provided with first sliding grooves on both sides, and the two sides of the first circuit board slide into the first sliding grooves respectively. The inner walls of the cylindrical shell are provided with second sliding grooves on both sides, and the two sides of the second circuit board slide into the second sliding grooves respectively.

7. The human body detection device according to claim 5, characterized in that, One end of the cylindrical shell is an open end, and the first circuit board and the second circuit board are inserted into the cylindrical shell through the open end; A limiting housing is installed at the open end. The limiting housing is provided with a first limiting groove and a second limiting groove. The first circuit board is limited by the first limiting groove, and the second circuit board is limited by the second limiting groove.

8. The human body detection device according to claim 7, characterized in that, The limiting shell is recessed towards the interior of the cylindrical outer shell to form a compartment, and a button battery is installed inside the compartment; The first circuit board is soldered with electrode springs, which pass through the limiting housing and abut against the button battery.

9. The human body detection device according to any one of claims 1-8, characterized in that, One end of the cylindrical shell is an open end, and the arched sheet is inserted into the cylindrical shell through the open end; A third limiting groove is provided at the end of the cylindrical shell away from the open end, and the first end of the arched sheet is inserted into the third limiting groove; A limiting shell is installed at the open end of the cylindrical shell, and the second end of the arched sheet away from the first end is inserted between the limiting shell and the cylindrical shell.

10. The human body detection device according to claim 9, characterized in that, The arched sheet includes a first side and a second side located between the first end and the second end. The cylindrical shell is provided with a fourth limiting groove and a fifth limiting groove at corresponding positions on the first side and the second side of the arched sheet, respectively. The first side and the second side are respectively inserted into the fourth limiting groove and the fifth limiting groove. The cylindrical outer shell is provided with a first abutting wall and a second abutting wall at corresponding positions on the first and second sides of the arched sheet, and the end faces of the first and second sides of the arched sheet abut against the first abutting wall and the second abutting wall, respectively. The limiting housing is provided with a third abutting wall at a position corresponding to the second end of the arched sheet, and the third abutting wall is used to abut the end face of the second end of the arched sheet; The inner wall of the cylindrical shell is provided with a limiting block, which is used to limit the second end of the arched sheet.

11. The human body detection device according to claim 9, characterized in that, The arched sheet can be unfolded into a flat plate.

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