Sensing device

Abstract

The utility model provides an induction device which comprises a shell, an induction module and an adjusting assembly, the induction module is directly or indirectly arranged on the shell, and the induction module can move along with the shell; the adjusting assembly is arranged at one end of the shell and comprises a first end cover arranged at the end of the shell in a covering mode and a base connected with the first end cover in a pivoted mode. The base is provided with a magnetic part, and the magnetic part is used for being connected to an external installation face in a magnetic attraction mode and can be attached to the external installation face to rotate, so that the first end cover and the shell can adjust the angle on the two rotational freedom degrees relative to the external installation face. According to the induction device provided by the utility model, the thickness of the adjusting assembly is reduced.

Description

Technical Field

[0001] The utility model relates to the field of sensors, in particular to an induction device. Background Art

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

[0003] The adjustable angle range of existing intelligent sensors is generally small. The patent with the application number CN20220230952.2 provides a human body sensor, in which the pose transformation device is connected to the induction device, and the pose transformation device can adjust the angle in two rotational degrees of freedom, so as to drive the induction device to greatly adjust the induction direction. However, due to the setting of two rotating shafts in this pose transformation device, the thickness is relatively thick; and because the pose transformation device needs to be paste-mounted, and the induction device cannot adjust the induction direction when installed alone, the mobility of the induction device is poor. Summary of the Utility Model

[0004] One object of the utility model is to provide an induction device, in which the first end cover and the housing can adjust the angle in two rotational degrees of freedom relative to the external mounting surface, so as to facilitate the accurate adjustment of the induction direction and improve the induction accuracy and reliability of the induction device.

[0005] Another object of the utility model is to provide an induction device, in which the adjusting component overlaps with the housing in thickness, reducing the thickness of the adjusting component. And because there is no rotating shaft arranged in the base, the structure of the base is more simplified and the thickness is thinner, further reducing the thickness of the adjusting component. When the adjusting component is magnetically connected to the mounting surface, the induction device is as close as possible to the mounting surface, thereby making the induction range wider; and, thanks to the reduction of the thickness of the adjusting component, the requirement for the installation space is reduced, increasing the installation flexibility.

[0006] Another object of the utility model is to provide an induction device, in which the adjusting component is integrated with the main body part of the induction device, and the adjusting component is magnetically mounted, so that the induction device and the adjusting component can conveniently change the installation position, and the induction direction can be adjusted after changing the position, greatly improving the mobility of the induction device.

[0007] Another object of the present utility model is to provide an induction device, wherein the frictional force between the magnetic member and the external mounting surface enables the induction device to maintain a stationary state when only under the action of gravity. When the user operates the base to rotate, the operating force overcomes the frictional force, causing the magnetic member to rotate relative to the external mounting surface, and the magnetic member remains in a fitting state with the external mounting surface during rotation to prevent the induction device from accidentally falling off.

[0008] Another object of the present utility model is to provide an induction device, wherein the portion where the first end cover is connected to the base is located at the corresponding position of the edge of the first end cover and also at the corresponding position of the edge of the base, such that the first end cover can pivot at a larger angle relative to the base, which is also beneficial for making the structure of the first end cover and the base more compact and smaller in volume; moreover, the edge connection facilitates assembly, thereby improving the assembly efficiency.

[0009] Another object of the present utility model is to provide an induction device, wherein by providing an embedding opening on the base and tightly embedding the connecting portion therein, the connection stability between the first end cover and the base is ensured, reducing the angular change caused by accidental vibration, and the connection method of embedding and fitting the connecting portion with the embedding opening makes the first end cover less likely to interfere with the base during the pivoting movement, thereby increasing the pivoting angle of the first end cover and making the adjustable range of the angle of the induction device larger.

[0010] Another object of the present utility model is to provide an induction device, wherein the connecting screw is accommodated in the connecting hole, making the connection structure more compact and beneficial for miniaturizing the adjusting assembly; and using screw connection can adjust the frictional force between the connecting portion and the embedding opening by adjusting the tightening force of the screw, so as to achieve the purpose of adjusting the pivoting resistance between the first end cover and the base, and the user can obtain an appropriate pivoting resistance by adjusting the tightening force of the connecting screw.

[0011] Another object of the present utility model is to provide an induction device, wherein the rotation axes of the two rotational degrees of freedom are perpendicular to each other, so that the induction direction of the induction device can be adjusted within the hemisphere range of the three-dimensional space, facilitating the precise adjustment of the induction direction of the induction device and improving the induction reliability; at the same time, the perpendicularity of the rotation axes of the two rotational degrees of freedom can avoid mutual interference between the two rotational degrees of freedom, facilitating the independent adjustment of each rotational degree of freedom.

[0012] Another object of the present utility model is to provide an induction device, wherein when the included angle between the first end cover and the base is 60°, the outer contour of the housing does not exceed the lower surface of the magnetic member, thereby preventing the housing from interfering with the external mounting surface.

[0013] Another object of the present utility model is to provide an induction device, wherein the first end cover is provided at one end of the housing opposite to the induction direction, such that the first end cover is perpendicular to the induction direction, facilitating the user to control the induction direction.

[0014] Another object of the present utility model is to provide an induction device, wherein the first end cover has a first state, a second state and a third state during the movement process, so as to realize 180° adjustment of the induction direction in the vertical plane, so that the induction device can adapt to various installation environments, and the installation flexibility is greatly improved.

[0015] To achieve at least one of the above objects, the present utility model provides an induction device, including a housing, an induction module and an adjustment component. The induction module is directly or indirectly arranged in the housing, and the induction module can move along with the housing; the adjustment component is arranged at one end of the housing, and the adjustment component includes a first end cover covering the end of the housing and a base pivotally connected to the first end cover; the base is provided with a magnetic member, and the magnetic member is used for magnetically attracting and connecting to an external installation surface and can rotate while fitting to the external installation surface, so that the first end cover and the housing can adjust the angle in two rotational degrees of freedom relative to the external installation surface.

[0016] Further, the position where the first end cover is connected to the base is located at the corresponding position of the edge of the first end cover and also at the corresponding position of the edge of the base.

[0017] Further, the surface of the first end cover facing away from the housing is set as a first surface, and a connecting portion is arranged at the edge position of the first surface, and the connecting portion protrudes from the first surface; the base is provided with an embedding opening at the corresponding position of the connecting portion, and the connecting portion is embedded in the embedding opening. When the first end cover pivots relative to the base, the connecting portion rotates in the embedding opening; the side wall of the embedding opening fits to the side wall of the connecting portion. When the induction device is only under the action of gravity, the included angle between the first end cover and the base remains unchanged.

[0018] Further, a through hole is formed through the connecting portion, and a connecting hole is formed in the base at the corresponding position of the through hole. The connecting hole penetrates from the side surface of the base to the embedding opening, and one connecting hole is formed on each of the left and right sides of the embedding opening; a connecting screw is arranged in the connecting hole, and the connecting screw is connected to the through hole, and the first end cover is pivotally connected to the base based on the connecting screw.

[0019] In some embodiments, the magnetic member has a magnetic attracting surface for attracting and fitting to the external installation surface. Among them, the pivot axis of the first end cover pivoting relative to the base is parallel to the magnetic attracting surface, so that the rotation axes of the two rotational degrees of freedom are perpendicular to each other.

[0020] Further, the magnetic member is embedded and installed in the base; the size of the housing is adapted to the size of the first end cap, such that when the included angle between the first end cap and the base is 60°, the housing does not interfere with the external mounting surface.

[0021] In some embodiments, the first end cap is disposed at an end of the housing opposite to the sensing direction, the first end cap is snapped onto the housing, and a sealing ring is disposed between the first end cap and the housing.

[0022] In some embodiments, a surface of the first end cap facing away from the housing is set as a first surface, and a surface of the base facing away from the magnetic member is set as a second surface. The first end cap has at least a first state and a second state during movement: in the first state, the first surface of the first end cap is attached to the second surface of the base; in the second state, the first surface of the first end cap is perpendicular to the second surface of the base.

[0023] Further, the first end cap has a third state during movement: in the third state, the first surface is parallel to the second surface, and the first surface and the second surface face the same direction.

[0024] In some embodiments, the housing is configured as a channel-shaped structure open at both ends. The housing has a first open end and a second open end. The first open end is sealingly connected to a sensing cover, and the first end cap is snapped onto the second open end of the housing; the sensing module includes a radar sensing module and an infrared sensing module. The radar sensing module has a transmitting surface, and the transmitting surface is disposed facing the sensing cover. The transmitting surface can emit radar detection waves, and the radar detection waves pass through the sensing cover and are emitted externally for sensing the micro-movement of the human body; the infrared sensing module has an infrared sensing surface, and a lens member is disposed at a position of the sensing cover opposite to the infrared sensing surface. The lens member is used to converge light onto the infrared sensing surface to detect the movement of the human body.

[0025] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present invention. The above-described various inventive concepts can be combined arbitrarily. These and other objects of the present invention will be fully embodied by the following detailed description and the accompanying drawings.

[0026] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0028] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0029] Figure 2 is an exploded view of the structure of an embodiment of the present invention;

[0030] Figure 3 is an exploded view of the induction cover, the first circuit board and the second circuit board of an embodiment of the present invention;

[0031] Figure 4 is a schematic diagram of the structure of the first circuit board of an embodiment of the present invention;

[0032] Figure 5 is a schematic diagram of the structure of the second circuit board of an embodiment of the present invention;

[0033] Figure 6 is a side view of the first circuit board, the second circuit board and the electronic components of an embodiment of the present invention;

[0034] Figure 7 is a cross-sectional view of the induction cover, the lens member, the first circuit board, the second circuit board and the electronic components of an embodiment of the present invention;

[0035] Figure 8 is an assembly diagram of the induction cover, the lens member and other structures of an embodiment of the present invention;

[0036] Figure 9 is an exploded view of a part of the structure after the housing is cut open in an embodiment of the present invention;

[0037] Figure 10 is a three-dimensional cross-sectional view of an embodiment of the present invention;

[0038] Figure 11 is an assembly diagram of the adjustment component and the housing of an embodiment of the present invention;

[0039] Figure 12 is a connection diagram of the induction device and the circular iron sheet of an embodiment of the present invention;

[0040] Figure 13 is an exploded view of the adjustment component of an embodiment of the present invention;

[0041] Figure 14 Schematic diagram of the angle adjustment of the adjustment component according to an embodiment of the present utility model;

[0042] Figure 15 Side view of the sensing device in the second state according to an embodiment of the present utility model;

[0043] Figure 16 Side view of the sensing device in the third state according to an embodiment of the present utility model;

[0044] Figure 17 Cross-sectional view of the sensing cover, lens member, first circuit board, second circuit board and electronic components according to an embodiment of the present utility model;

[0045] Figure 18 Assembly schematic diagram between the sensing cover, lens member and other structures according to an embodiment of the present utility model;

[0046] Figure 19 Cross-sectional view of the sensing cover, lens member, first circuit board, second circuit board and electronic components according to an embodiment of the present utility model. Detailed implementation manners

[0047] In the description of the present utility model, the orientation or positional relationship indicated by terms such as "inner", "outer", "horizontal", "vertical", "upper", "lower", "top", "bottom", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model rather than requiring the present utility model to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0048] In the description of the specification of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0049] In the description of the specification of the present utility model, unless otherwise clearly specified and limited, terms such as "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection or can communicate with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0050] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those skilled in the art can implement them. When the combination of technical solutions conflicts with each other or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0051] Existing radar sensors still need to continuously emit radar detection waves when there is no one in the sensing area so as to be able to detect in time when someone appears, which results in a relatively high power consumption of the radar sensors. To solve the problem of relatively high power consumption of the radar sensors, according to the first aspect of the present invention, an induction device 100 is provided, which can sense the movement and micro-movement of the human body in an induction area 200. Please refer to Figures 1 - 19 , and the induction device 100 provided by the present invention will be specifically explained. As Figures 1 - 7 shown, the induction device 100 includes a housing 1, a first circuit board 2, and a second circuit board 3; the housing 1 is provided with an induction cover 4 facing the induction area 200; the first circuit board 2 is arranged inside the housing 1, and an infrared induction module 21 is arranged on a surface of the first circuit board 2 facing the induction cover 4. The infrared induction module 21 has an infrared induction surface 211, and the infrared induction surface 211 is used to sense the movement of the human body in the induction area 200; the second circuit board 3 is arranged on a side of the first circuit board 2 facing the induction cover 4, and a radar induction module 31 is arranged on the second circuit board 3. The radar induction module 31 has a transmitting surface 311, and the transmitting surface 311 is arranged facing the induction cover 4. The transmitting surface 311 can emit radar detection waves, and the radar detection waves pass through the induction cover 4 and are emitted externally for detecting the micro-movement of the human body in the induction area 200. Among them, the induction area 200 can be understood as an area that can be detected by the radar induction module 31 and can trigger the infrared induction module 21, Figure 7The area surrounded by the dashed line in the figure is a schematic area of the induction area 200. The induction area 200 shown in the figure is only used to indicate the direction of the induction area, and its range does not represent the actual range of the induction area. The movement of the human body can be understood as the movement or limb movement of the human body, such as walking, waving the arm, sitting down, etc. The micro-movement can be understood as the minute movement generated by the human body in a static state, such as breathing, heartbeat, etc. The infrared induction surface 211 is the side of the infrared induction module 21 for sensing infrared light. The infrared induction module 21 can be understood as a sensor that can generate a change in the electrical signal in response to a change in infrared light. In one embodiment, the infrared induction module 21 is set as a pyroelectric infrared sensor. The induction cover 4 can be understood as a protective cover or other cover body, which is constructed as a thin shell structure and is made of a material with a low dielectric constant to reduce the loss of the radar detection wave passing through the induction cover 4. In one embodiment, the induction cover 4 is made of PC material with a low dielectric constant.

[0052] The induction device 100 provided by the embodiment of the present invention realizes the dual induction of human body movement and micro-movement by combining the radar induction module 31 and the infrared induction module 21. The pyroelectric material has the physical property of generating charge separation when the temperature changes. The infrared induction module 21 for detecting the moving human body belongs to passive detection and has very low power consumption. When there is no one in the induction area 200, the infrared induction module 21 is relied on for detection, which greatly reduces the power consumption of the induction device 100, enables the induction device 100 to be powered by the battery 5, so that the induction device 100 has mobility, the installation position is not restricted by the power cord, and the installation is more convenient. When there is someone in the induction area 200, the radar induction module 31 is switched to for detection, so that the induction device 100 can detect the micro-movement of the human body, avoiding the situation that the detection fails when the human body is not moving, and perfectly combines the advantages of the radar induction module 31 and the infrared induction module 21.

[0053] However, there are technical difficulties in integrating the infrared induction module 21 and the radar induction module 31: Since the outer shell of the infrared induction module 21 is made of metal, the radar detection wave emitted by the radar induction module 31 is easily interfered by the infrared induction module 21, resulting in a reduction in the detection performance of the radar induction module 31. To solve this problem, in some embodiments, as Figure 6 and Figure 7 shown, there is a preset distance L3 between the second circuit board 3 and the first circuit board 2, so that the distance L2 between the emission surface 311 and the first circuit board 2 is greater than the distance L1 between the infrared induction surface 211 and the first circuit board 2. By controlling the preset distance L3 in the embodiment of the present invention, the emission surface 311 is made higher than the infrared induction surface 211, so that the radar detection wave emitted by the emission surface 311 is not easily interfered by the infrared induction module 21. Among them, as Figure 6As shown, since the accuracy of the distance between the emission surface 311 and the infrared sensing surface 211 is affected by the combined influence of multiple dimensional chains. Specifically, the distance between the emission surface 311 and the infrared sensing module 21 = the preset distance L3 + the thickness of the second circuit board 3 + the distance between the radar sensing module 31 and the second circuit board 3 + the thickness of the radar sensing module 31 - the height of the infrared sensing module 21. It can be seen that the dimensional chain of the distance between the emission surface 311 and the infrared sensing module 21 is very long, and error accumulation is likely to occur. Therefore, it is very difficult to accurately control the distance between the emission surface 311 and the infrared sensing module 21 during the manufacturing process. However, it is relatively simple to accurately control the preset spacing L3. Only by designing a positioning and supporting structure for the second circuit board 3 can the preset spacing L3 be accurately controlled. In the embodiment of the present invention, the preset spacing L3 is set as an important dimension that needs to be strictly controlled during the design and manufacturing processes, thereby indirectly ensuring that the distance between the emission surface 311 and the infrared sensing surface 211 meets the requirements, greatly reducing the design and manufacturing difficulties, and ensuring the yield rate of the product.

[0054] Among them, the accuracy of the preset spacing L3 can be controlled by the positioning and supporting structure on the housing 1 or the first circuit board 2, or can be controlled by other positioning and supporting structures. As long as there is a positioning structure and / or a supporting structure for controlling the accuracy of the preset spacing L3, it is within the protection scope of the present invention.

[0055] Furthermore, as Figures 3 - 6 shown, one of the first circuit board 2 and the second circuit board 3 is provided with a pin header 32, and the other is provided with a socket 22. The pin header 32 is inserted into the socket 22 to realize the electrical connection between the first circuit board 2 and the second circuit board 3. Among them, the second circuit board 3 is supported and positioned on the first circuit board 2 by the pin header 32 and the socket 22. The pin header 32 and the socket 22 support and position the second circuit board 3. Among them, compared with other connection methods, the connection method of using the pin header 32 and the socket 22 between the two circuit boards in this embodiment not only realizes the electrical connection between the circuit boards, but also simplifies the connection relationship between the circuit boards, facilitating assembly, maintenance, and replacement. At the same time, it also makes the positioning between the first circuit board 2 and the second circuit board 3 more accurate, ensuring the accurate positional relationship between the infrared sensing module 21 and the radar sensing module 31. In addition, the first circuit board 2 supports and positions the second circuit board 3 through the pin header 32 and the socket 22, making the structure more compact, which is beneficial to reducing the volume of the sensing device 100 and adapting to the miniaturization trend.

[0056] In some embodiments, as Figures 3 - 5As shown, the first circuit board 2 is provided with two pin headers 32 facing the second circuit board 3. The second circuit board 3 is provided with two pin headers 32, and the two pin headers 32 are respectively inserted into the two female headers 22. The two female headers 22 support the second circuit board 3 in a balanced manner. Among them, the first circuit board 2 uses two female headers 22 to support the second circuit board 3, which not only improves the structural stability, but also ensures the parallelism between the second circuit board 3 and the first circuit board 2, making the sensing direction of the radar sensing module 31 consistent with the sensing direction of the infrared sensing module 21.

[0057] Further, the two female headers 22 are respectively arranged at the diagonal corners of the first circuit board 2, and have the following beneficial effects:

[0058] 1. The parallelism and position accuracy between the second circuit board 3 and the first circuit board 2 are higher, and the sensing direction of the radar sensing module 31 is more accurate; 2. The diagonal arrangement of the female headers 22 helps to quickly align during the assembly process, reduce the position deviation caused by manual operation, and improve the assembly efficiency; 3. Heat will be generated during the operation of the circuit board, and the circuit board may have slight deformation due to thermal expansion and contraction. The diagonal arrangement of the female headers 22 can better balance this deformation and reduce the stress concentration of the circuit board.

[0059] Further, as Figures 4 - 6As shown, the pin header 32 has a third surface 321 facing the female header 22, and the female header 22 has a fourth surface 221 facing the pin header 32. When the pin header 32 is inserted into the female header 22, the third surface 321 fits against the fourth surface 221, so that the preset spacing is controlled by the heights of the pin header 32 and the female header 22. In this embodiment, the spacing between the first circuit board 2 and the second circuit board 3 is effectively controlled by the fitting and assembly of the pin header 32 and the female header 22. Without other positioning structures or support structures, the accuracy of the preset spacing L3 can be ensured. This not only simplifies the assembly process but also saves the space inside the housing 1, making the structure more compact. It should be noted that the spacing L4 (not marked in the figure) between the emission surface 311 and the induction cover 4 has a great influence on the detection performance of the radar induction module 31. The spacing L4 between the emission surface 311 and the induction cover 4 needs to be adaptively adjusted according to the change of the wavelength of the radar detection wave. The relationship between this spacing L4 and the wavelength is described in detail below. The preset spacing L3 of this embodiment is only determined by the heights of the pin header 32 and the female header 22. If it is necessary to change the spacing L4 between the emission surface 311 and the induction cover 4, only different models of the pin header 32 and the female header 22 need to be replaced, without re-designing the structure or changing the mold. This enables some parts of the induction device 100 to be common to radar induction modules 31 with different wavelengths, saving material and mold costs. Moreover, in the product development and design stage, the spacing L4 between the emission surface 311 and the induction cover 4 can also be changed by replacing the pin header 32 and the female header 22 with different heights, so as to test the detection performance of the radar induction module 31 at different spacings L4, in order to determine the optimal spacing corresponding to the radar induction module 31 with different wavelengths.

[0060] Further, as Figure 8 , Figure 10 and Figure 18 shown, the induction cover 4 is provided with an abutting portion 41 facing the second circuit board 3, and the abutting portion 41 abuts against a surface of the second circuit board 3 facing away from the pin header 32 and the female header 22 to limit the movement of the second circuit board 3 in the direction away from the pin header 32 and the female header 22. So that the position of the second circuit board 3 in the vertical direction is stably limited between the abutting portion 41 and the pin header 32 or the female header 22, preventing the connection effect between the second circuit board 3 and the first circuit board 2 from being affected by accidental dropping, and moreover, the abutting portion 41 can prevent the position or angle of the second circuit board 3 from changing, further improving the reliability and service life of the entire device.

[0061] In some embodiments, as Figure 7 , Figure 8 and Figures 17 - 19As shown, the induction cover 4 is provided with a lens member 42. The center of the lens member 42 corresponds to the center of the infrared induction surface 211. The lens member 42 is used to converge light onto the infrared induction surface 211. Among them, the lens member 42 can be integrally formed with the induction cover 4 or can be formed separately and then connected to the induction cover 4. The lens member 42 can be a convex lens array similar to a turtle shell shape or a Fresnel lens. The infrared induction surface 211 is arranged near the focal point of the lens member 42. In one embodiment, the infrared induction surface 211 is arranged within 2 mm below the focal point of the lens member 42. The lens member 42 converges infrared light and natural light onto the infrared induction surface 211. The infrared induction surface 211 is provided with an infrared filter. The infrared filter only allows infrared light of a specified wavelength to pass through. Below the infrared filter, there are at least two pyroelectric induction sheets. When infrared light irradiates on the pyroelectric induction sheet, charge separation occurs on the irradiated pyroelectric induction sheet, while no charge separation occurs on the non-irradiated pyroelectric induction sheet, thereby causing a change in the level at the pin of the infrared induction module 21. The induction device 100 determines whether there is a person in the induction area 200 according to the level change of the infrared induction module 21. Among them, the lens member 42 is equivalent to a plurality of convex lenses arranged in an array. Each convex lens can converge light onto the infrared induction surface 211, which not only increases the sensitivity of the infrared induction module 21 to infrared light, improves the detection distance, but also improves the detection resolution of the infrared induction module 21, enabling small-scale movements of the human body to trigger the infrared induction module 21.

[0062] In a specific embodiment, the model of the infrared induction module 21 is PISD324-02, and the focal length of the lens member 42 is 6 mm.

[0063] Furthermore, the frequency of the radar detection wave is between 55 GHz and 80 GHz, that is, the wavelength of the radar detection wave in the air is between 3.75 mm and 5.45 mm, belonging to millimeter waves with a shorter wavelength. It has higher resolution and can achieve more precise detection and recognition of target objects.

[0064] As Figure 7 and Figure 2As shown, a lens mounting hole 43 is penetratingly provided at a position of the induction cover 4 opposite to the infrared induction module 21. The lens member 42 is embedded and installed in the lens mounting hole 43. Among them, the lens member 42 is configured in a shape similar to a cap structure. The diameter of the lens mounting hole 43 is slightly larger than that of the lens member 42. A brim extends horizontally outward around the side surface of the lens member 42. The diameter of the brim is larger than that of the lens mounting hole 43. The lens member 42 is installed into the lens mounting hole 43 from below the induction cover 4, and the brim abuts against the lower surface of the lens mounting hole 43. The brim and the lens mounting hole 43 are sealed with sealant. The separate molding of the lens member 42 and the induction cover 4 in this embodiment has the following beneficial effects: 1. It is beneficial to ensure the injection molding accuracy of the lens member 42; 2. Different materials can be used for the lens member 42 and the induction cover 4, which not only ensures the optical performance of the lens member 42 but also enables the induction cover 4 to use materials with a low dielectric constant; 3. Standard parts can be selected for the lens member 42 to reduce the manufacturing cost.

[0065] Furthermore, when the radar detection wave passes through the induction cover 4 and the lens member 42, losses will occur and refraction will occur, thereby reducing the detection performance of the radar induction module 31. To reduce the loss of the radar detection wave, as Figure 7 and Figure 3 shown, the induction cover 4 is recessed downward in the area around the lens mounting hole 43, so that the lens member 42 sinks into the induction cover 4, thereby reducing the shielding of the radar detection wave by the lens member 42 and making the detection range of the radar induction module 31 larger.

[0066] Furthermore, as Figure 7 shown, the distance between the emission surface 311 and the first circuit board 2 is L2, and the distance between the infrared induction surface 211 and the first circuit board 2 is L1, then L2 > 2L1; the lens member 42 is arranged at a non-central position of the induction cover 4, and the pyroelectric sensor and the radar induction module 31 are distributed left and right, so that there is a large distance between the infrared induction module 21 and the radar induction module 31 in both the horizontal and vertical directions, reducing the interference of the infrared induction module 21 on the radar induction module 31. Among them, the left and right distribution can be understood as that the projection patterns formed by the pyroelectric sensor and the radar induction module 31 projected on the first circuit board 2 are distributed on the left and right sides of the first circuit board 2.

[0067] In some embodiments, as Figure 3 、 Figure 4 and Figure 7As shown, both the induction cover 4 and the lens member 42 are made of light-transmitting materials; a light-emitting unit 23 is provided on the first circuit board 2 within the range covered by the lens member 42 or within the range covered by the induction cover 4, and the light emitted by the light-emitting unit 23 is externally displayed through the lens member 42 or the induction cover 4; a light-sensitive induction module 33 is provided on the second circuit board 3 within the range covered by the induction cover 4, and ambient light irradiates the light-sensitive induction module 33 through the induction cover 4. Thus, the housing 1 does not need to be additionally opened or provided with a light-transmitting window to install the light-emitting unit 23 and the light-sensitive induction module 33, which simplifies the structure, improves the integrity of the induction device 100. At the same time, there is no need to additionally design a waterproof structure, reducing the manufacturing cost and improving the assembly efficiency. Among them, the first circuit board 2 within the range covered by the lens member 42 can be understood as within the projection pattern formed by the projection of the lens member 42 on the first circuit board 2, and the first circuit board 2 within the range covered by the induction cover 4 can be understood as within the projection pattern formed by the projection of the induction cover 4 on the first circuit board 2. In an embodiment, the light-emitting unit 23 uses an LED lamp, the light-sensitive induction module 33 uses a photoresistor, the induction cover 4 uses a white PC material, and the lens member 42 uses a white translucent HDPE material.

[0068] In some embodiments, the wavelength of the radar detection wave propagating in the air is λ, and the minimum distance between the induction cover 4 and the emission surface 311 is greater than λ / 10 to reduce the reflection and interference of the induction cover 4 on the radar detection wave; the maximum distance between the induction cover 4 and the emission surface 311 is less than 3λ / 4 to reduce the reflection and interference of the inner wall of the housing 1 on the radar detection wave. In a preferred embodiment, the distance between the induction cover 4 and the emission surface 311 is set between λ / 4 and λ / 2.

[0069] Further, the frequency of the radar detection wave is between 55 GHz and 80 GHz. The wavelength of the radar detection wave propagating in the induction cover 4 is λm. Wherein, the thickness of the induction cover 4 at the position corresponding to the radar induction module 31 is d, and d satisfies the relationship: λm / 4 < d < 3λm / 4. Among them, the inventor found through experimental research that when d is close to an integer multiple of λm / 4 or an integer multiple of 3λm / 4, the loss and interference of the radar detection wave are relatively large. Therefore, setting d between λm / 4 and 3λm / 4 can reduce the adverse effects and ensure the stability and accuracy of the radar detection wave. Moreover, this thickness can ensure the penetration efficiency of the radar detection wave and reduce the loss of the radar detection wave. Furthermore, the induction cover 4 within this thickness range can block a part of the external unwanted electromagnetic waves and improve the reliability of the radar induction module 31. In a preferred embodiment, d = λm / 2 to minimize the loss of the radar detection wave. In addition, the frequency of the radar detection wave in this embodiment is between 55 GHz and 80 GHz, that is, the wavelength in the air is between 3.75 mm and 5.45 mm, which belongs to millimeter waves with a shorter wavelength and has a higher resolution, enabling more precise detection and identification of target objects. In a preferred embodiment, the radar induction module 31 uses a radar module with the model MRS6130-E1906 from Zhuhai Zhenghe Microelectronics Technology Co., Ltd., and the frequency of the radar detection wave is 60 GHz, and its wavelength in the air is 5 mm.

[0070] Thanks to the integration of the radar induction module 31 and the infrared induction module 21 in the induction device 100, the power consumption of the induction device 100 is greatly reduced, enabling the induction device 100 to be powered by the battery 5. In some embodiments, as Figure 2 and Figures 9 - 11 shown, a battery 5 is arranged inside the housing 1, and the induction device 100 is powered by the battery 5, making the induction device 100 portable, with the installation position not restricted by the power cord and being more convenient to install. As Figure 9 and Figure 10As shown, the housing 1 is configured as a cylindrical - like structure with both ends open. Inside the housing 1, a middle housing 6 is provided. The middle housing 6 is disposed below the first circuit board 2. At positions near the side edges of the middle housing 6, three limiting ribs 61 are provided upward. The three limiting ribs 61 are evenly distributed along the circumferential direction of the middle housing 6. At positions corresponding to each limiting rib 61 on the first circuit board 2, positioning portions 24 are provided. On the inner side of the side wall of the housing 1, at positions corresponding to each limiting rib 61, limiting grooves 11 are provided. The width of the limiting grooves 11 is adapted to the limiting ribs 61 and the positioning portions 24. The limiting ribs 61 abut upward against the lower surface of the positioning portions 24 and push the positioning portions 24 into the limiting grooves 11. The positioning portions 24 are clamped and fixed between the limiting ribs 61 and the limiting grooves 11. Among them, the positioning portions 24 are formed by dividing the first circuit board 2. Four connecting buckles 62 are evenly distributed along the circumferential direction on the side surface of the middle housing 6. On the inner side of the side wall of the housing 1, at positions corresponding to each connecting buckle 62, connecting grooves 16 are provided. The connecting buckles 62 are snapped into the connecting grooves 16 to realize the fixed connection between the middle housing 6 and the housing 1.

[0071] The battery 5 is a button battery 5 and is disposed below the middle housing 6. The first circuit board 2 is provided with a positive electrode elastic sheet 251 and a negative electrode elastic sheet 252 downward. The positive electrode elastic sheet 251 passes through the middle housing 6 and abuts against the positive electrode of the battery 5, and the negative electrode elastic sheet 252 passes through the middle housing 6 and abuts against the negative electrode of the battery 5. The battery 5 is clamped between the middle housing 6 and the first end - cover 71. Among them, on the side of the first end - cover 71 facing the battery 5, a foam 75 is pasted. The foam 75 abuts against the battery 5 to prevent the battery 5 from shaking up and down and ensure good contact between the battery 5 and the negative electrode elastic sheet 252. A battery compartment is recessed upward on the lower side of the middle housing 6. The shape of the battery compartment is adapted to the battery 5. The diameter of the battery compartment is slightly larger than that of the battery 5. The battery 5 is accommodated in the battery compartment and is limited by the battery compartment. It should be noted that the battery 5 can be selected from CR2450 button batteries or CR2477 button batteries. These two button batteries only differ in thickness in terms of appearance. The foam 75 can be selected with different thicknesses to adapt to different models of button batteries, thereby preventing the button battery from shaking.

[0072] As Figures 8 - 10As shown, the housing 1 has a first open end and a second open end. The induction cover 4 is sealingly connected to the first open end, and the second open end is covered with a first end cap 71. A sealing ring 8 is provided between the first end cap 71 and the housing 1 to form a closed space inside the housing 1, so that the induction device 100 has waterproof performance and can be applied to a humid environment. In a specific implementation, a protruding embedding ring 44 is provided around the edge of the induction cover 4 protruding towards the housing 1, and an annular groove 15 is provided around the top of the housing 1 recessed. A sealing adhesive is coated on the inner circumference of the embedding ring 44, and the embedding ring 44 is embedded in the annular groove 15, and the sealing adhesive seals the induction cover 4 and the housing 1. Further, the sealing ring 8 is provided at the junction of the middle housing 6, the housing 1 and the first end cap 71 to achieve sealed connection of the three. As Figure 9 As shown, an electronic switch 26 is provided at the edge of the first circuit board 2. The trigger rod of the electronic switch 26 protrudes from the first circuit board 2. A key hole is provided in the side wall of the housing 1 at a position corresponding to the electronic switch 26, and a silicone key 14 is embedded in the key hole. The silicone key 14 is used to trigger the electronic switch 26. Among them, the side circumference of the silicone key 14 is recessed inward, and the recess is clamped in the key hole so that the silicone key 14 is limited in the key hole. The silicone key 14 is in interference fit with the key hole to achieve sealed connection between the silicone key 14 and the housing 1.

[0073] Further, the first circuit board 2 is provided with a processing module 27. The processing module 27 is integrated with a wireless communication module for external wireless communication. An on-board antenna 271 is provided on the first circuit board 2, and the on-board antenna 271 is electrically connected to the wireless communication module. Further, both the processing module 27 and the on-board antenna 271 are provided on the upper surface of the first circuit board 2.

[0074] In some embodiments, as Figures 10 - 16 As shown, the induction device 100 includes an adjustment assembly 7 provided at one end of the housing 1. The adjustment assembly 7 includes a first end cap 71 covering the end of the housing 1 and a base 72 pivotally connected to the first end cap 71; the base 72 is provided with a magnetic member 73 for magnetically attracting and connecting to an external mounting surface 91 and capable of rotating while fitting on the external mounting surface 91, so that the first end cap 71 and the housing 1 can adjust the angle in two rotational degrees of freedom relative to the external mounting surface 91, facilitating accurate adjustment of the induction direction and improving the induction accuracy and reliability of the induction device 100. In one embodiment, the two rotational degrees of freedom have been shown in Figure 14It is marked out. Among them, the external mounting surface 91 can be understood as the surface of an iron object outside the induction device 100, such as the surface of a refrigerator, the surface of an iron rack, the surface of an iron door, etc. In a preferred embodiment, the external mounting surface 91 is set as the surface of a circular iron sheet 9, and the circular iron sheet 9 can be pasted on the surface of a non-iron object, so that the induction device 100 can be connected to the non-iron object through the circular iron sheet 9, further improving the installation flexibility and convenience of the induction device 100. The non-iron object is, for example, glass, wooden cabinet, table and chair, wall surface, etc. The magnetic member 73 fitting and rotating on the external mounting surface 91 can be understood as that the magnetic member 73 is kept in a suction state with the external mounting surface 91 under the action of magnetic suction force, and the frictional force between the magnetic member 73 and the external mounting surface 91 enables the induction device 100 to maintain a static state when only affected by gravity. When the user operates the base 72 to rotate, the operating force overcomes the frictional force, causing the magnetic member 73 to rotate relative to the external mounting surface 91, and the magnetic member 73 remains in a fitting state with the external mounting surface 91 during rotation to prevent the induction device 100 from accidentally falling. The magnetic member 73 can be understood as a part with magnetism, such as a magnet, soft magnetic rubber, etc.

[0075] In this embodiment, since the first end cap 71 covers the housing 1, the first end cap 71 is at least partially embedded in the housing 1, and there is an overlap in thickness between the adjusting assembly 7 and the housing 1, reducing the thickness of the adjusting assembly 7. And since no rotating shaft is provided in the base 72, the structure of the base 72 is more simplified and the thickness is thinner, further reducing the thickness of the adjusting assembly 7. When the adjusting assembly 7 is magnetically connected to the external mounting surface 91, the induction device 100 is as close as possible to the external mounting surface 91, thereby making the induction range wider. Moreover, due to the reduction in the thickness of the adjusting assembly 7, the requirement for the installation space is reduced, increasing the installation flexibility; it also ensures the concealment and aesthetics of the adjusting assembly 7 after installation. In addition, the adjusting assembly 7 is integrally connected with the main body part of the induction device 100, and the adjusting assembly 7 is magnetically mounted, enabling the induction device 100 and the adjusting assembly 7 to conveniently change the installation position, and the induction direction can be adjusted after changing the position, greatly improving the mobility of the induction device 100.

[0076] Furthermore, the position where the first end cap 71 is connected to the base 72 is at the corresponding position on the edge of the first end cap 71 and at the corresponding position on the edge of the base 72, so that the first end cap 71 can pivot relative to the base 72 at a larger angle; in a specific embodiment, such as Figure 15 and Figure 16As shown, thanks to the pivot shaft 74 being located at the edges of the first end cover 71 and the base 72, when the first end cover 71 pivots relative to the base 72 by angles of 90° and 180°, the housing 1 is not likely to interfere with the base 72. Additionally, setting the pivot shaft 74 at the edges of the first end cover 71 and the base 72 helps make the structures of the first end cover 71 and the base 72 more compact and smaller in volume. Moreover, edge connection is convenient for assembly, improving the assembly efficiency. Herein, the corresponding positions at the edges can be understood as positions close to the edges or positions located at the edges.

[0077] Furthermore, as Figure 13 and Figure 14 shown, one side of the first end cover 71 facing away from the housing 1 is set as the first surface 713, and a connecting portion 711 is provided at the edge position of the first surface 713, with the connecting portion 711 protruding from the first surface 713; an insertion opening 722 is provided at the position corresponding to the connecting portion 711 on the base 72, and the connecting portion 711 is inserted into the insertion opening 722. When the first end cover 71 pivots relative to the base 72, the connecting portion 711 rotates within the insertion opening 722; the side wall of the insertion opening 722 fits against the side wall of the connecting portion 711. When the sensing device 100 is only under the action of gravity, the included angle between the first end cover 71 and the base 72 remains unchanged. Herein, by providing the insertion opening 722 on the base 72 and tightly inserting the connecting portion 711 therein, the connection stability between the first end cover 71 and the base 72 is ensured, reducing the angle change caused by accidental vibration. In a preferred embodiment, the width of the insertion opening 722 is slightly smaller than the width of the connecting portion 711, such that there is a certain interference fit between the connecting portion 711 and the insertion opening 722 to increase the friction force between the connecting portion 711 and the insertion opening 722, making the connection between the two more stable. At the same time, the reliability during long-term use is also enhanced. Additionally, in this embodiment, the connection method of the connecting portion 711 and the insertion opening 722 being inserted and fitted makes it less likely for the first end cover 71 to interfere with the base 72 during the pivoting movement, thereby increasing the pivoting angle of the first end cover 71 and making the adjustable angle range of the sensing device 100 larger.

[0078] Furthermore, as Figure 13As shown, a through hole 712 is provided through the connecting portion 711. A connecting hole 723 is provided in the base 72 at a position corresponding to the through hole 712. The connecting hole 723 penetrates from the side surface of the base 72 to the embedding port 722. One connecting hole 723 is provided on each of the left and right sides of the embedding port 722; a connecting screw 724 is provided in the connecting hole 723. The connecting screw 724 is connected to the through hole 712, and the first end cover 71 is pivotally connected to the base 72 based on the connecting screw 724. Among them, the two connecting holes 723 are respectively connected to the connecting portion 711 through the connecting screws 724, ensuring the stable connection between the first end cover 71 and the base 72. At the same time, the connecting screw 724 is accommodated in the connecting hole 723, making the connecting structure more compact and conducive to the miniaturization of the adjusting assembly 7. In addition, if the pivot resistance between the first end cover 71 and the base 72 is too large, it will result in poor operation feel. If the pivot resistance is too small, the angle between the first end cover 71 and the base 72 will change under the action of gravity. In this embodiment, screw connection is adopted, and the friction between the connecting portion 711 and the embedding port 722 can be adjusted by adjusting the tightening force of the screw, so as to achieve the purpose of adjusting the pivot resistance between the first end cover 71 and the base 72. The user can obtain an appropriate pivot resistance by adjusting the tightening force of the connecting screw 724.

[0079] In some embodiments, as Figure 13 and Figure 14 shown, the magnetic member 73 has a magnetic attracting surface 731, and the magnetic attracting surface 731 is used for attracting to the external mounting surface 91. Among them, the pivot axis 74 of the pivotal movement of the first end cover 71 relative to the base 72 is parallel to the magnetic attracting surface 731, so that the rotation axes of the two rotational degrees of freedom are perpendicular to each other, so that the sensing direction of the sensing device 100 can be adjusted within the hemisphere range of the three-dimensional space, facilitating the precise adjustment of the sensing direction of the sensing device 100 and improving the sensing reliability. At the same time, the rotation axes of the two rotational degrees of freedom being perpendicular to each other can avoid mutual interference between the two rotational degrees of freedom, facilitating the independent adjustment of each rotational degree of freedom. Among them, the pivot axis 74 can be understood as the pivot center axis, which is a virtual axis, and the pivot axis 74 has been marked in Figure 13 . The so-called parallel includes approximate parallel, that is, the included angle between the pivot axis 74 and the magnetic attracting surface 731 within the range of ±10° can be regarded as parallel, and all are within the protection scope of the present invention. In this embodiment, the magnetic attracting surface 731 is the lower surface of the magnetic member 73.

[0080] Furthermore, as Figures 14 - 16As shown, the magnetic member 73 is embedded and installed in the base 72; the size of the housing 1 is adapted to the size of the first end cover 71, so that when the included angle between the first end cover 71 and the base 72 is 60°, the housing 1 does not interfere with the external mounting surface 91. Among them, since the magnetic member 73 is embedded and installed in the base 72, the magnetic member 73 and the base 72 at least partially overlap in thickness, thereby further thinning the thickness of the adjustment assembly 7. The size of the housing 1 being adapted to the size of the first end cover 71 can be understood as that the side profile of the housing 1 is smaller than the side profile of the first end cover 71, or the side profile of the housing 1 is equal to the side profile of the first end cover 71, or the side profile of the housing 1 is slightly larger than the side profile of the first end cover 71, so that when the included angle between the first end cover 71 and the base 72 is 60°, the outer contour of the housing 1 does not exceed the lower surface of the magnetic member 73, thereby avoiding interference between the housing 1 and the external mounting surface 91. In a preferred embodiment, the side profile of the housing 1 is flush with the side profile of the first end cover 71.

[0081] Further, a magnet mounting groove 721 is recessed upward on the lower surface of the base 72, the shape of the magnet mounting groove 721 is adapted to the magnetic member 73, the magnetic member 73 is embedded into the magnet mounting groove 721 from bottom to top, and the upper surface of the magnetic member 73 is pasted to the magnet mounting groove 721; the depth of the magnet mounting groove 721 is slightly less than the height of the magnetic member 73, so that the bottom of the magnetic member 73 slightly protrudes from the magnet mounting groove 721, so that the lower surface of the magnetic member 73 can be attached to the external mounting surface 91.

[0082] In some embodiments, as Figure 14 shown, the first end cover 71 is arranged at one end of the housing 1 opposite to the induction direction, so that the first end cover 71 is perpendicular to the induction direction, which is convenient for the user to control the induction direction.

[0083] In some embodiments, as Figure 1 、 Figures 14 - 16 shown, one surface of the first end cover 71 facing away from the housing 1 is set as the first surface 713, and one surface of the base 72 facing away from the magnetic member 73 is set as the second surface 725. The first end cover 71 has at least a first state and a second state during movement: in the first state (as Figure 1 ), the first surface 713 of the first end cover 71 is attached to the second surface 725 of the base 72; in the second state (as Figure 15 ), the first surface 713 of the first end cover 71 is perpendicular to the second surface 725 of the base 72. Further, the first end cover 71 has a third state during movement: in the third state (as Figure 16), the first surface 713 is parallel to the second surface 725, and the first surface 713 and the second surface 725 face the same direction. Thus, the sensing direction can be adjusted by 180° in the vertical plane, so that the sensing device 100 can be adapted to various installation environments, and the installation flexibility is greatly improved.

[0084] Since the first end cover 71 is covered at the end of the housing 1, the upper part of the first end cover 71 is embedded in the housing 1, and the lower part is exposed below the housing 1. In order to reduce the overall height of the sensing device 100, the thickness of the first end cover 71 exposed below the housing 1 needs to be as thin as possible. However, this also results in the first end cover 71 having no force application point for easy operation by the user, and it is difficult for the user to remove the first end cover 71. To solve this problem, in some embodiments, such as Figure 14 As shown, the base 72 is used to connect the external mounting surface 91, and the first end cover 71 can be pivoted based on the base 72 to adjust the sensing direction; the housing 1 is provided with a battery 5, and the first end cover 71 is detachably connected to the housing 1, and the first end cover 71 can be adjusted to have a preset angle with the base 72, so that the first end cover 71 can be driven to be disassembled and assembled to the housing 1 by operating the base 72, that is, the base 72 can be used as an operating handle of the first end cover 71, so that the user can more easily apply the operating force to the first end cover 71, so as to remove the first end cover 71 and replace the battery 5; at the same time, since the first end cover 71 is easier to be disassembled, the connection force between the first end cover 71 and the housing 1 can be designed to be larger, and the connection between the two can be more stable, so as to avoid the first end cover 71 from accidentally detaching from the housing 1 when adjusting the angle. Wherein, the detachable connection can be connected by snap-fitting, rotating snap-fitting, plug-in by interference fit, or threaded connection, etc. During actual use, the user can first open the base 72 relative to the first end cover 71 by the preset angle, and then apply an operating force through the base 72 to remove the first end cover 71 from the shell 1; wherein, when the first end cover 71 is connected to the shell 1 by a snap-fit ​​or is inserted into the shell 1 by an interference fit, the operating force can be a pulling force in the direction away from the shell 1, and when the first end cover 71 is rotated and connected to the shell 1 by a rotating snap or is connected to the shell 1 by a thread, the operating force can be a rotational force.

[0085] Furthermore, the preset angle is greater than 45° and less than or equal to 180°, so that the space between the base 72 and the first end cover 71 can accommodate the user's fingers, making it convenient for the user to operate the base 72 .

[0086] In some implementations, such as Figure 14 and Figure 15As shown, the preset included angle is greater than 80° and less than or equal to 180°, so that the base 72 and the first end cap 71 can reach a vertical state, facilitating the user to apply the operating force to the first end cap 71 through the base 72.

[0087] In a preferred embodiment, as Figure 16 shown, the preset included angle is 180°, so that the bottom shell is equivalent to an extended handle of the first end cap 71, making it more labor-saving for the user to apply a rotational operation.

[0088] In some embodiments, as Figure 12 shown, the base 72 is magnetically connected to the external mounting surface 91 through the magnetic member 73, so that the base 72 can be quickly disassembled and assembled on the external mounting surface 91, facilitating the user to quickly operate the base 72 to replace the battery 5.

[0089] In some embodiments, as Figure 13 and Figure 14 shown, the part where the first end cap 71 is connected to the base 72 is located at the corresponding position on the edge of the first end cap 71 and also at the corresponding position on the edge of the base 72, making it more labor-saving for the user to apply a rotational operation.

[0090] Furthermore, as Figure 13 and Figure 14 shown, the connecting portion 711 is embedded in the embedding opening 722, and the side wall of the embedding opening 722 fits against the side wall of the connecting portion 711. When the first end cap 71 pivots relative to the base 72, the connecting portion 711 rotates within the embedding opening 722. Among them, the embedding and cooperation of the connecting portion 711 and the embedding opening 722 can increase the strength of the connecting part and prevent damage caused by excessive operating force.

[0091] When the angle between the base 72 and the first end cap 71 is 180°, the bottom shell is equivalent to an extended handle of the first end cap 71, making it more labor-saving for the user to apply a rotational operation. For this reason, in some embodiments, as Figure 11 and Figure 9 shown, the first end cap 71 is rotationally clamped to the housing 1, and the base 72 can drive the first end cap 71 to rotate so that the first end cap 71 is installed or disassembled from the housing 1. Among them, in this embodiment, the first end cap 71 is rotationally clamped to the housing 1, making it easier for the user to disassemble the first end cap 71. Furthermore, the clamping force between the first end cap 71 and the housing 1 can be designed to be larger, ensuring easy disassembly while also making the connection more stable.

[0092] In a specific embodiment, as Figure 11 and Figure 9As shown, the housing 1 has a second open end, and the second open end is covered with the first end cap 71. A plurality of clamping grooves 12 are circumferentially distributed on the inner wall of the housing 1. The clamping grooves 12 extend along the circumference of the housing 1. An entrance 13 is provided at the end of the clamping groove 12 facing the second open end. The entrance 13 communicates with the clamping groove 12 and the second open end. A plurality of clamping protrusions 715 are circumferentially provided on the side wall of the first end cap 71. The clamping protrusions 715 are rotationally clamped in the clamping grooves 12 through the entrances 13. Among them, the number of the clamping grooves 12 is four, and the four clamping grooves 12 are evenly distributed along the circumference of the housing 1. Four clamping protrusions 715 are evenly distributed along the circumference of the side wall of the first end cap 71, and each clamping protrusion 715 is respectively clamped in the corresponding clamping groove 12.

[0093] Further, as Figure 11 and Figure 10 shown, an abutting wall 714 is extended and provided on the side of the first end cap 71 facing the middle shell 6. The abutting wall 714 surrounds the position near the side edge of the first end cap 71. The clamping protrusions 715 are provided on the side surface of the abutting wall 714. A positioning bone 63 is extended and provided on the side part of the middle shell 6 towards the first end cap 71. The positioning bone 63 is provided with a positioning depression. A positioning rib 716 is provided at the corresponding position of the inner side of the abutting wall 714 in the positioning depression. When the first end cap 71 is rotationally clamped to the housing 1, the positioning rib 716 is clamped into the positioning depression to prevent the first end cap 71 from accidentally falling off.

[0094] Further, as Figure 10 、 Figure 11 and Figure 2 shown, the first end cap 71 is buckled to the housing 1, and a sealing ring 8 is provided between the first end cap 71 and the housing 1. When the first end cap 71 is installed on the housing 1, the sealing ring 8 is squeezed so that the housing 1 and the first end cap 71 are sealed. Among them, the abutting wall 714 of the first end cap 71 presses against the sealing ring 8, which increases the rotational resistance of the first end cap 71. Moreover, the greater the extrusion amount of the sealing ring 8, the greater the rotational resistance and the better the waterproof performance. Thanks to the base 72 which can make the rotation of the first end cap 71 more labor-saving, in this embodiment, while ensuring that the first end cap 71 can be successfully disassembled, the waterproof performance meets the requirements.

[0095] In some other embodiments, as Figures 17 - 19 shown, the difference between this embodiment and Figures 1 - 16 the embodiment is that the lens member 42 is integrally formed on the induction cover 4 to improve the assembly efficiency and the sealing performance between the lens member 42 and the induction cover 4. Among them, in Figure 17In the illustrated embodiment, a plurality of convex lenses are arranged in an array on the back surface of the lens member 42; in Figures 18 - 19 In the illustrated embodiment, the induction cover 4 is integrally formed with a Fresnel lens pattern 421, and the Fresnel lens pattern 421 forms the lens member 42. Among them, the Fresnel lens pattern 421 is provided at a non-central position of the induction cover 4, and the position of the infrared induction module 21 corresponds to the central position of the Fresnel lens pattern 421. The advantage of using the Fresnel lens pattern 421 is that it is very thin, which can further reduce the occlusion of the radar sensor by the lens member 42. Further, as Figure 18 shown, the arrangement direction of the radar induction module 31 is longitudinal, the second circuit board 3 is arranged as close to the left side as possible, and an avoidance arc is provided at the right edge of the second circuit board 3 to avoid the second circuit board 3 from blocking the light converged by the Fresnel lens pattern 421 and to make the area of the Fresnel lens larger.

[0096] In another embodiment (not shown in the figure), different from Figures 18 - 19 the illustrated embodiment, the Fresnel lens pattern 421 covers the emission surface 311 and the infrared induction surface 211, and the frequency of the radar detection wave is between 20 GHz and 30 GHz. Among them, the radar detection wave passes through the Fresnel lens pattern 421 and is emitted externally. The Fresnel lens pattern 421 has a refraction and reflection effect on the radar detection wave, which will affect the detection performance of the radar induction module 31. The inventor found through experimental research that, compared with the radar detection wave of 55 GHz - 80 GHz, the influence of the Fresnel lens pattern 421 on the radar detection wave of 20 GHz - 30 GHz is smaller. Therefore, in this embodiment, the frequency of the radar detection wave is set between 20 GHz and 30 GHz so that the detection performance of the radar induction module 31 is less affected by the Fresnel lens pattern 421. In a specific embodiment, the radar induction module 31 uses the RKB1161L type radar module of Sijie Microelectronics Co., Ltd., and the frequency of the radar detection wave is 24 GHz. Further, in this embodiment, the center of the Fresnel lens pattern 421 corresponds to the center of the induction cover 4 so that the coverage range of the Fresnel lens pattern 421 is larger, and thus the resolution of the infrared induction module 21 is higher. The infrared induction module 21 is arranged at a position corresponding to the center of the Fresnel lens pattern 421, the infrared induction surface 211 is lower than the upper surface of the second circuit board 3, and the second circuit board 3 is provided with a light-transmitting hole at a position corresponding to the infrared induction module 21. The light-transmitting hole is used to expose the infrared induction surface 211 so that the light converged by the Fresnel lens pattern 421 can irradiate the infrared induction surface 211.

[0097] The adjustable angle range of existing intelligent sensors is generally small. The patent with the application number CN20220230952.2 provides a human body sensor. Its pose transformation device is connected to the induction device. The pose transformation device can adjust the angle in two rotational degrees of freedom, thereby driving the induction device to greatly adjust the induction direction. However, due to the setting of two rotating shafts in this pose transformation device, its thickness is relatively thick; and since the pose transformation device needs to be adhesively installed, and the induction device cannot adjust the induction direction when installed separately, the mobility of the induction device is poor.

[0098] To solve the problems of the relatively thick pose transformation device and the poor mobility of the induction device, according to the second aspect of the present invention, as Figures 1 - 19 shown, there is provided an induction device 100, as Figures 1 - 3 and Figures 10 - 16 shown, the induction device 100 includes: a housing 1, an induction module 10, and an adjustment component 7; the induction module 10 is directly or indirectly disposed in the housing 1, and the induction module 10 can move along with the housing 1; the adjustment component 7 is disposed at one end of the housing 1, and the adjustment component 7 includes a first end cover 71 covering the end of the housing 1 and a base 72 pivotally connected to the first end cover 71; the base 72 is provided with a magnetic member 73, and the magnetic member 73 is used for magnetically connecting to an external mounting surface 91 and can rotate while fitting on the external mounting surface 91, so that the first end cover 71 and the housing 1 can adjust the angle in two rotational degrees of freedom relative to the external mounting surface 91, facilitating the accurate adjustment of the induction direction and improving the induction accuracy and reliability of the induction device 100. In one embodiment, the two rotational degrees of freedom are as shown in Figure 14It is marked out. Among them, the induction module 10 can be understood as a component with induction function, such as a radar induction module 31, an infrared induction module 21, a sound sensor, a light sensor, etc. In one embodiment, the induction module 10 includes a radar induction module 31 and an infrared induction module 21. The directly or indirectly disposed on the housing 1 can be understood as that the induction module 10 can be directly fixedly connected to the housing 1, or can be indirectly fixedly connected to the housing 1 through a circuit board or other structures. The external mounting surface 91 can be understood as the surface of an iron object outside the induction device 100, such as the surface of a refrigerator, the surface of an iron rack, the surface of an iron door, etc. In a preferred embodiment, the external mounting surface 91 is set as the surface of a circular iron sheet 9, and the circular iron sheet 9 can be pasted on the surface of a non-iron object, so that the induction device 100 can be connected to the non-iron object through the circular iron sheet 9, further improving the installation flexibility and convenience of the induction device 100. The non-iron objects are such as glass, wooden cabinets, desks and chairs, walls, etc. The magnetic member 73 fitting and rotating on the external mounting surface 91 can be understood as that the magnetic member 73 is kept in a suction state with the external mounting surface 91 under the action of magnetic attraction force, and the friction force between the magnetic member 73 and the external mounting surface 91 enables the induction device 100 to maintain a static state when only affected by gravity. When the user operates the base 72 to rotate, the operating force overcomes the friction force, causing the magnetic member 73 to rotate relative to the external mounting surface 91, and the magnetic member 73 remains in a fitting state with the external mounting surface 91 when rotating, so as to prevent the induction device 100 from accidentally falling. The magnetic member 73 can be understood as a part with magnetism, such as a magnet, a soft magnetic rubber, etc.

[0099] In this embodiment, since the first end cap 71 covers the housing 1, the first end cap 71 is at least partially embedded in the housing 1, and the adjusting assembly 7 and the housing 1 overlap in thickness, reducing the thickness of the adjusting assembly 7. And since no rotating shaft is provided in the base 72, the structure of the base 72 is more simplified and the thickness is thinner, further reducing the thickness of the adjusting assembly 7, so that when the adjusting assembly 7 is magnetically connected to the mounting surface, the induction device 100 is as close as possible to the mounting surface, thereby making the induction range wider. And thanks to the reduction of the thickness of the adjusting assembly 7, the requirement for the installation space is reduced, increasing the installation flexibility; and the concealment and aesthetics of the adjusting assembly 7 after installation are also ensured. In addition, the adjusting assembly 7 is integrally connected with the main body part of the induction device 100, and the adjusting assembly 7 is magnetically installed, so that the induction device 100 and the adjusting assembly 7 can be conveniently changed in installation position, and the induction direction can be adjusted after changing the position, greatly improving the mobility of the induction device 100.

[0100] Further, as Figures 13 - 16As shown, the part where the first end cover 71 is connected to the base 72 is located at the corresponding position of the edge of the first end cover 71 and also at the corresponding position of the edge of the base 72, enabling a larger pivot angle of the first end cover 71 relative to the base 72, which is also conducive to making the structures of the first end cover 71 and the base 72 more compact and smaller in volume. Moreover, edge connection facilitates assembly, improving the assembly efficiency. Among them, the technical details of the housing 1, the first end cover 71, the base 72, and the magnetic member 73 are described in detail above and will not be elaborated here.

[0101] Furthermore, as Figure 13 and Figure 14 shown, the side of the first end cover 71 facing away from the housing 1 is set as the first surface 713, and a connecting portion 711 is provided at the edge position of the first surface 713, and the connecting portion 711 protrudes from the first surface 713; the base 72 is provided with an embedding opening 722 at the corresponding position of the connecting portion 711, and the connecting portion 711 is embedded in the embedding opening 722. When the first end cover 71 pivots relative to the base 72, the connecting portion 711 rotates within the embedding opening 722; the side wall of the embedding opening 722 fits against the side wall of the connecting portion 711. When the sensing device 100 is only under the action of gravity, the included angle between the first end cover 71 and the base 72 remains unchanged. Among them, by providing the embedding opening 722 on the base 72 and tightly embedding the connecting portion 711 therein, the connection stability between the first end cover 71 and the base 72 is ensured, reducing the angle change caused by accidental vibration. And the connection method of embedding and matching the connecting portion 711 with the embedding opening 722 makes the first end cover 71 not easily interfere with the base 72 during the pivoting movement, thereby increasing the pivot angle of the first end cover 71 and making the adjustable angle range of the sensing device 100 larger.

[0102] Furthermore, as Figure 13As shown, a through hole 712 is provided through the connecting portion 711. A connecting hole 723 is provided in the base 72 at a position corresponding to the through hole 712. The connecting hole 723 penetrates from the side surface of the base 72 to the embedding port 722. One connecting hole 723 is provided on each of the left and right sides of the embedding port 722; a connecting screw 724 is provided in the connecting hole 723. The connecting screw 724 is connected to the through hole 712, and the first end cover 71 is pivotally connected to the base 72 based on the connecting screw 724. Among them, the connecting screw 724 is accommodated in the connecting hole 723, making the connecting structure more compact and facilitating the miniaturization of the adjusting assembly 7. And screw connection can adjust the friction force between the connecting portion 711 and the embedding port 722 by adjusting the tightening force of the screw, so as to achieve the purpose of adjusting the pivotal resistance between the first end cover 71 and the base 72. The user can obtain an appropriate pivotal resistance by adjusting the tightening force of the connecting screw 724.

[0103] Among them, the technical details of the related structures of the embedding port 722 and the connecting portion 711 are described in detail above and will not be elaborated here.

[0104] In some embodiments, as Figure 13 and Figure 14 shown, the magnetic member 73 has a magnetic attraction surface 731, and the magnetic attraction surface 731 is used to attract and combine with the external mounting surface 91. Among them, the pivot axis 74 of the relative pivotal movement of the first end cover 71 with respect to the base 72 is parallel to the magnetic attraction surface 731, so that the rotation axes of the two rotational degrees of freedom are perpendicular to each other, so that the sensing direction of the sensing device 100 can be adjusted within the hemisphere range of the three-dimensional space, so as to facilitate the precise adjustment of the sensing direction of the sensing device 100 and improve the sensing reliability. At the same time, the rotation axes of the two rotational degrees of freedom being perpendicular to each other can avoid mutual interference between the two rotational degrees of freedom, so as to facilitate the independent adjustment of each rotational degree of freedom.

[0105] Furthermore, as Figures 14 - 16 shown, the magnetic member 73 is embedded and installed in the base 72; the size of the housing 1 is adapted to the size of the first end cover 71, so that when the included angle between the first end cover 71 and the base 72 is 60°, the housing 1 does not interfere with the external mounting surface 91. The size of the housing 1 being adapted to the size of the first end cover 71 can be understood as that the side profile of the housing 1 is smaller than the side profile of the first end cover 71, or the side profile of the housing 1 is equal to the side profile of the first end cover 71, or the side profile of the housing 1 is slightly larger than the side profile of the first end cover 71, so that when the included angle between the first end cover 71 and the base 72 is 60°, the outer contour of the housing 1 does not exceed the lower surface of the magnetic member 73, thereby avoiding interference between the housing 1 and the external mounting surface 91. In a preferred embodiment, the side profile of the housing 1 is flush with the side profile of the first end cover 71.

[0106] Among them, the technical details of the magnetic attraction member and the base 72 are described in detail above and will not be elaborated here.

[0107] In some embodiments, such as Figure 14 shown, the first end cap 71 is disposed at one end of the housing 1 opposite to the induction direction, so that the first end cap 71 is perpendicular to the induction direction, facilitating the user to control the induction direction. The first end cap 71 is fastened to the housing 1, and a sealing ring 8 is provided between the first end cap 71 and the housing 1.

[0108] Among them, the technical details of the housing 1, the first end cap 71 and the sealing ring 8 are described in detail above and will not be elaborated here.

[0109] In some embodiments, such as Figure 1 , Figures 14 - 16 shown, one surface of the first end cap 71 facing away from the housing 1 is set as the first surface 713, and one surface of the base 72 facing away from the magnetic member 73 is set as the second surface 725. The first end cap 71 has at least a first state and a second state during movement: in the first state (such as Figure 1 ), the first surface 713 of the first end cap 71 fits against the second surface 725 of the base 72; in the second state (such as Figure 15 ), the first surface 713 of the first end cap 71 is perpendicular to the second surface 725 of the base 72. Further, the first end cap 71 has a third state during movement: in the third state (such as Figure 16 ), the first surface 713 is parallel to the second surface 725, and the first surface 713 and the second surface 725 face the same direction. Thus, the induction direction can be adjusted by 180° in the vertical plane, enabling the induction device 100 to adapt to various installation environments and greatly improving the installation flexibility.

[0110] In some embodiments, such as Figures 1 - 9As shown, the housing 1 is configured as a channel-shaped structure with both ends open. The housing 1 has a first open end and a second open end. The first open end is sealingly connected to an induction cover 4, and the first end cap 71 is buckled to the second open end of the housing 1. The induction module 10 includes a radar induction module 31 and an infrared induction module 21. The radar induction module 31 has a transmitting surface 311, and the transmitting surface 311 is arranged facing the induction cover 4. The transmitting surface 311 can emit radar detection waves, and the radar detection waves pass through the induction cover 4 and are emitted externally for sensing the slight movement of the human body. The infrared induction module 21 has an infrared induction surface 211, and a lens member 42 is arranged at a position on the induction cover 4 opposite to the infrared induction surface 211. The lens member 42 is used to converge light on the infrared induction surface 211 to detect the movement of the human body. Among them, the technical details of the housing 1, the induction cover 4, the radar induction module 31, the infrared induction module 21, and the lens member 42 are described in detail above and will not be elaborated here.

[0111] In addition, it should be noted that the above embodiments can be combined with each other. For the same or similar concepts or processes, they may not be elaborated in some embodiments. That is, the technical solutions disclosed in the subsequent (in the order of recording in the text) embodiments should include the technical solutions recorded in this embodiment and the technical solutions in all the embodiments before this embodiment.

[0112] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features. And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sensing device, characterized in that: include: case; A sensing module is directly or indirectly disposed on the housing, and the sensing module can move with the housing; An adjustment component is arranged at one end of the shell, and the adjustment component includes a first end cover covered on the end of the shell and a base pivotally connected to the first end cover; the base is provided with a magnetic member, and the magnetic member is used for magnetic attraction and connection to an external mounting surface, and can be rotated in contact with the external mounting surface, so that the first end cover and the shell can adjust the angle in two rotational degrees of freedom relative to the external mounting surface.

2. The sensing device according to claim 1, characterized in that: The portion where the first end cover is connected to the base is located at a position corresponding to the edge of the first end cover and is also located at a position corresponding to the edge of the base.

3. The sensing device according to claim 2, characterized in that: A side of the first end cover facing away from the housing is set as a first surface, and a connecting portion is set at an edge of the first surface, and the connecting portion protrudes from the first surface; The base is provided with an embedding opening at a position corresponding to the connecting part, and the connecting part is embedded in the embedding opening. When the first end cover pivots relative to the base, the connecting part rotates in the embedding opening; the side wall of the embedding opening is fitted with the side wall of the connecting part, and when the sensing device is only under the action of gravity, the angle between the first end cover and the base remains unchanged.

4. The sensing device according to claim 3, characterized in that: The connecting portion is penetrated by a through hole, and the base is provided with a connecting hole at a position corresponding to the through hole. The connecting hole passes through the side of the base to the embedding port, and a connecting hole is respectively provided on the left and right sides of the embedding port; a connecting screw is provided in the connecting hole, and the connecting screw is connected to the through hole, and the first end cover is pivotally connected to the base based on the connecting screw.

5. The sensing device according to claim 2, characterized in that: The magnetic member has a magnetic surface, which is used to be attracted to the external mounting surface, wherein the pivot axis of the first end cover pivoting relative to the base is parallel to the magnetic surface, so that the rotation axes of the two rotational degrees of freedom are perpendicular to each other.

6. The sensing device according to claim 5, characterized in that: The magnetic member is embedded and installed in the base; the size of the shell is adapted to the size of the first end cover, so that when the angle between the first end cover and the base is 60°, the shell does not interfere with the external installation surface.

7. The sensing device according to claim 1, characterized in that: The first end cover is arranged at an end of the shell opposite to the sensing direction, the first end cover is buckled with the shell, and a sealing ring is arranged between the first end cover and the shell.

8. The sensing device according to any one of claims 1 to 7, characterized in that: The side of the first end cover facing away from the housing is set as the first surface, and the side of the base facing away from the magnetic member is set as the second surface. The first end cover has at least a first state and a second state during the movement: In a first state, the first surface of the first end cover is attached to the second surface of the base; in a second state, the first surface of the first end cover is perpendicular to the second surface of the base.

9. The sensing device according to claim 8, characterized in that: The first end cover has a third state during the movement: in the third state, the first surface is parallel to the second surface, and the first surface and the second surface face the same direction.

10. The sensing device according to any one of claims 1 to 7, characterized in that: The shell is constructed as a channel-shaped structure with two ends open, the shell has a first open end and a second open end, the first open end is sealed and connected to an induction cover, and the first end cover is buckled on the second open end of the shell; The sensing module includes a radar sensing module and an infrared sensing module. The radar sensing module has an emitting surface, which is arranged toward the sensing cover. The emitting surface can emit radar detection waves, which pass through the sensing cover and are emitted to the outside to sense micro-movements of the human body. The infrared sensing module has an infrared sensing surface. The sensing cover is provided with a lens component at a position directly opposite to the infrared sensing surface. The lens component is used to converge light on the infrared sensing surface to detect the movement of a human body.

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