Sensor and detection device

Abstract

The utility model relates to a sensor and a detection device. Comprising a housing assembly comprising a housing; the detection assembly is arranged in the shell, the detection assembly comprises a supporting piece, a first detection unit and a second detection unit, the first detection unit comprises a first circuit board and a radar induction piece, and the second detection unit comprises a second circuit board and an infrared induction piece; the first circuit board and the second circuit board are electrically connected and are both arranged on the supporting piece, the radar induction piece is arranged on the first circuit board, and the infrared induction piece is arranged on the second circuit board. The first circuit board is provided with the radar induction part, and the second circuit board is provided with the infrared induction part, so that the radar induction part and the infrared induction part can perform detection at the same time to ensure that the sensor forms dual detection, thereby ensuring that the sensor can perform accurate detection on the micro-motion state of a human body, and finally improving the detection precision and sensitivity of the sensor.

Description

Technical Field

[0001] This application relates to the field of detection technology, and in particular to a sensor and a detection device. Background Technology

[0002] A sensor is a device that can detect measured information and transform that information into electrical signals or other desired forms of output according to certain rules, in order to meet the requirements of information transmission, processing, storage, display, recording, and control. However, traditional sensors often struggle to accurately detect subtle human movements, thus affecting their detection accuracy. Utility Model Content

[0003] One of the technical problems addressed by this application is how to improve the detection accuracy of sensors.

[0004] A sensor, comprising:

[0005] Shell assembly, including the outer shell;

[0006] A detection component is disposed within the housing. The detection component includes a support member, a first detection unit, and a second detection unit. The first detection unit includes a first circuit board and a radar sensor, and the second detection unit includes a second circuit board and an infrared sensor. The first circuit board and the second circuit board are electrically connected and are both disposed on the support member. The radar sensor is disposed on the first circuit board, and the infrared sensor is disposed on the second circuit board.

[0007] In one embodiment, the housing assembly further includes a light-transmitting element disposed at one end of the housing, and the first circuit board and the second circuit board are arranged along the axial direction of the housing, with the first circuit board being closer to the light-transmitting element than the second circuit board.

[0008] In one embodiment, the first circuit board has a through hole extending through the first circuit board along its thickness direction, and the infrared sensor protrudes from the second circuit board and engages with the through hole.

[0009] In one embodiment, the first detection unit further includes a photosensitive element and / or a temperature and humidity sensor, wherein the photosensitive element and / or the temperature and humidity sensor are disposed on the first circuit board.

[0010] In one embodiment, when the photosensitive element is present, the housing assembly further includes a light guide element disposed on the housing and in a curved shape, and the light guide element is disposed close to the photosensitive element to guide light to the photosensitive element.

[0011] In one embodiment, the support includes a support body and a plurality of support columns. The support body has a support surface, and the plurality of support columns protrude from the support surface and are spaced apart circumferentially along the support body. The second circuit board is supported on the support surface, and the first circuit board is supported on the end of the support column away from the support surface and is fixedly connected to the support column.

[0012] In one embodiment, the second circuit board is provided with a plurality of clearance holes extending through the second circuit board along the thickness direction, and the support column passes through the clearance holes.

[0013] In one embodiment, the sensor further includes a power supply assembly comprising a bracket and a battery, the bracket being detachably connected to the support member, and the battery being disposed within the bracket and electrically connected to the second circuit board.

[0014] In one embodiment, the bracket includes two support plates and multiple side plates. The two support plates are spaced apart along the axial direction of the housing, and the multiple side plates are connected between the edges of the two support plates. The support plates and the side plates form a limiting cavity. The number of batteries is multiple, and the multiple batteries are stacked and connected in parallel in the limiting cavity.

[0015] In one embodiment, the power supply assembly further includes a negative electrode spring and a positive electrode spring electrically connected to the second circuit board and the battery. The number of batteries is two. The positive electrode spring is attached to the side plate. The negative electrode spring includes an abutment portion located in the limiting cavity and spaced apart from the two support plates. The abutment portion is sandwiched between the two batteries.

[0016] In one embodiment, the bracket further includes a lug, a retaining ring, and a fastener. The lug protrudes from the side plate and is located outside the limiting cavity. The fastener passes through the lug and is threadedly connected to the support member. The retaining ring is engaged outside the fastener and abuts against the lug.

[0017] In one embodiment, the support member has a receiving cavity, and the bracket is at least partially received within the receiving cavity.

[0018] A detection device comprising the sensor described in any one of the above descriptions.

[0019] One technical effect of one embodiment of this application is that, since a radar sensor is provided on the first circuit board and an infrared sensor is provided on the second circuit board, the radar sensor and the infrared sensor can detect simultaneously, ensuring that the sensor forms dual detection. This ensures that the sensor can accurately detect the micro-movement state of the human body, and ultimately improves the detection accuracy and sensitivity of the sensor. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a detection device provided in one embodiment.

[0021] Figure 2 for Figure 1 The first example exploded structural diagram of the detection device shown.

[0022] Figure 3 for Figure 1 The second example exploded structural diagram of the detection device shown.

[0023] Figure 4 for Figure 3 A structural diagram from another perspective.

[0024] Figure 5 for Figure 1 The diagram shows a partial three-dimensional cross-sectional view of the detection device after the battery has been removed.

[0025] Figure 6 for Figure 1 The diagram shows a partial three-dimensional cross-sectional view of the detection device, including the shell assembly.

[0026] Figure 7 for Figure 1 A three-dimensional cross-sectional view of the detection component in the detection device shown.

[0027] Figure 8 for Figure 7 The exploded view of the detection device is shown.

[0028] Figure 9 for Figure 1 An exploded view of the power supply component in the detection device shown.

[0029] Figure 10 for Figure 1 The diagram shows a planar structural schematic of the mounting base for the detection device.

[0030] Figure 11 for Figure 10 A three-dimensional sectional view of the mounting base is shown.

[0031] Figure 12 for Figure 10 The diagram shows an exploded view of the mounting base.

[0032] Figure 13 for Figure 12 A structural diagram from another perspective.

[0033] Figure 14 for Figure 10A three-dimensional structural diagram of the connector in the mounting base shown.

[0034] Reference numerals: Detection device 10, sensor 101, shell assembly 100, outer shell 110, inner cavity 111, rib 113, snap hole 112, light-transmitting element 120, light guide element 130, button 140, detection assembly 200, first detection unit 210, first circuit board 211, through hole 2111, radar sensor 212, light-sensitive element 213, temperature and humidity sensor 214, light guide element 130, second detection unit 220, second circuit board 221, infrared sensor 222, support 230, support body 231, support surface 231a, receiving cavity 2311, support column 232, power supply assembly 300, bracket 310, support plate 311, side plate 312, limiting cavity 313, lug 314, snap ring 315, Fastener; 316, Battery; 320, Negative Electrode Spring; 330, Abutment Part; 331, Positive Electrode Spring; 340, Mounting Base; 102, Base Body; 400, First Mounting Unit; 410, First Main Body Cover; 411, Bottom Surface; 4111, Outer Peripheral Surface; 4112, Sliding Hole; 4113, First Sliding Section; 4113b, Second Sliding Section; 4114, Guide Groove; 412, First Pressure Cover; Ball Hole; 413, Flexible Member; 414, Second Mounting Unit; 420, Second Main Body Cover; 421, Insertion Hole; 4211, Second Pressure Cover; 422, Magnetic Member; 423, Connector; 430, Connecting Part; 431, Ball Head; 432, Elastic Member; 510, Sliding Buckle; 520, Sliding Part; 521, Force Applying Part; 522, Fixing Buckle; 530. Detailed Implementation

[0035] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0036] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0037] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0041] See Figure 1 , Figure 2 , Figure 3 and Figure 4 In one embodiment of this application, a detection device 10 includes a sensor 101 and a mounting base 102, wherein the sensor 101 is disposed on the mounting base 102.

[0042] See Figure 5, Figure 6 and Figure 7 In some embodiments, the sensor 101 includes a housing assembly 100 and a detection assembly 200. The housing assembly 100 includes a housing 110 and a light-transmitting element 120. The housing 110 may be generally cylindrical and may form a generally cylindrical inner cavity 111. A portion of the mounting base 102 can be inserted into the inner cavity 111, thus connecting the mounting base 102 to the sensor 101. The light-transmitting element 120 has semi-transparent properties and is used to transmit infrared light. The light-transmitting element 120 is disposed at one end of the housing 110. The housing assembly 100 may also include a button 140 disposed on the housing 110, which allows an operator to control the activation of the sensor 101.

[0043] See Figure 7 and Figure 8 In some embodiments, the detection component 200 is disposed within the housing 110, i.e., the detection component 200 is located within the inner cavity 111 of the housing 110. The detection component 200 includes a support member 230, a first detection unit 210, and a second detection unit 220. The first detection unit 210 includes a first circuit board 211 and a radar sensor 212. The first circuit board 211 is disposed on the support member 230, and the radar sensor 212 is disposed on the first circuit board 211. The radar sensor 212 can detect using millimeter-wave radar, but can also use ultrasound or laser for sensing. The radar sensor 212 can detect the presence of a human body and its movement. The second detection unit 220 includes a second circuit board 221 and an infrared sensor 222. The second circuit board 221 is disposed on the support member 230, and the infrared sensor 222 is disposed on the second circuit board 221. The second circuit board 221 and the first circuit board 211 are electrically connected to each other. The infrared sensor 222 can also detect the presence of a human body and its movement.

[0044] See Figure 5 , Figure 7 and Figure 8 When sensor 101 only has radar sensor 212 or infrared sensor 222, meaning sensor 101 can only perform single-level detection, it cannot accurately detect subtle movements such as human breathing, thus affecting the detection accuracy and sensitivity of sensor 101. However, in the sensor 101 of the above embodiment, since radar sensor 212 and infrared sensor 222 detect simultaneously, ensuring dual detection, sensor 101 can accurately detect subtle movements such as human breathing, ultimately improving the detection accuracy and sensitivity of sensor 101.

[0045] See Figure 5 , Figure 7 and Figure 8 In some embodiments, the first circuit board 211 and the second circuit board 221 are arranged along the axial direction of the housing 110, such that the first circuit board 211 and the second circuit board 221 are spaced a certain distance apart along the axial direction of the housing 110. One of the first circuit board 211 and the second circuit board 221 is provided with a plug and the other with a socket, which are located in the gap between the first circuit board 211 and the second circuit board 221. Through the mutual cooperation of the plug and the socket, the first circuit board 211 and the second circuit board 221 can be electrically connected. The first circuit board 211 can be closer to the light-transmitting element 120 than the second circuit board 221, which can improve the detection accuracy of the radar sensor 212 to a certain extent.

[0046] See Figure 5 , Figure 7 and Figure 8 In some embodiments, a through hole 2111 is provided on the first circuit board 211, extending through the entire first circuit board 211 along its thickness direction. An infrared sensor 222 protrudes from the second circuit board 221. A portion of the infrared sensor 222 is located in the gap between the first and second circuit boards 211, while the other portion is inserted into the through hole 2111. Therefore, infrared light transmitted from the outside through the light-transmitting element 120 into the housing 110 can be received by the infrared sensor 222, ensuring effective detection of infrared light. The cooperation between the infrared sensor 222 and the through hole 2111 allows for precise positioning of the second detection unit 220, thereby improving the installation efficiency and accuracy of the second detection unit 220. It also allows the infrared sensor 222 to fully utilize the existing space of the through hole 2111, thus achieving a compact structure for the sensor 101.

[0047] See Figure 5 , Figure 7 and Figure 8In some embodiments, the first detection unit 210 further includes a temperature and humidity sensor 214, which is disposed on the first circuit board 211. The temperature and humidity sensor 214 can detect the temperature and humidity of the external environment, thereby improving the diversity of the detection functions of the sensor 101. The first detection unit 210 may also include a light sensor 213, which is disposed on the first circuit board 211. The light sensor 213 can detect the light intensity in the external environment, for example, whether it is day or night, thus also improving the diversity of the detection functions of the sensor 101. In the presence of the light sensor 213, the housing assembly 100 further includes a light guide 130, which is disposed on the housing 110 and is curved, and is positioned close to the light sensor 213 so that the light guide 130 can guide the light from the external environment to the light sensor 213. Given that the light guide 130 is curved, the area of ​​the light guide 130 can be reasonably increased within a limited three-dimensional space, thereby increasing the light transmission angle and thus increasing the amount of light transmitted by the light guide 130, ultimately improving the detection accuracy of the photosensitive element 213.

[0048] In some embodiments, radar sensor 212 protrudes from the surface of the first circuit board 211 facing away from the second circuit board 221, photosensor 213 also protrudes from the surface of the first circuit board 211 facing away from the second circuit board 221, and temperature and humidity sensor 214 protrudes from the surface of the first circuit board 211 facing the second circuit board 221. Infrared sensor 222 protrudes from the surface of the second circuit board 221 facing the first circuit board. This allows the radar sensor 212, photosensor 213, temperature and humidity sensor 214, and infrared sensor 222 to fully utilize the gap between the first circuit board 211 and the second circuit board 221, as well as the space of the inner cavity 111, thereby achieving a reasonable layout.

[0049] See Figure 5 , Figure 7 and Figure 8In some embodiments, the support member 230 is detachably connected to the housing 110, for example, the support member 230 and the housing 110 can be connected by a snap-fit ​​connection. The support member 230 includes a support body 231 and support columns 232. The support body 231 has a support surface 231a, and the support columns 232 protrude from the support surface 231a. There are multiple support columns 232, which are spaced apart circumferentially along the support body 231, that is, two adjacent support columns 232 are spaced apart at a certain angle circumferentially along the support body 231. For example, there can be three support columns 232. The second circuit board 221 is supported on the support surface 231a, and the first circuit board 211 is supported on the end of the support column 232 away from the support surface 231a. The first circuit board 211 can be bolted to the end of the support column 232. Meanwhile, the second circuit board 221 has multiple clearance holes 221a, the number of which is equal to the number of support pillars 232 and they correspond one-to-one. The clearance holes 221a penetrate the second circuit board 221 along its thickness direction, and the support pillars 232 pass through the clearance holes 221a, thus enabling the second circuit board 221 to be supported on the support surface 231a. By setting the support pillars 232 and clearance holes 221a, a certain distance can be maintained between the first circuit board 211 and the second circuit board 221 along the axial direction of the support member 230.

[0050] See Figure 5 and Figure 9In some embodiments, the sensor 101 further includes a power supply assembly 300, which includes a bracket 310 and multiple batteries 320, such as two batteries 320. The multiple batteries 320 are connected in parallel within the bracket 310 and electrically connected to the second circuit board 221. Given that there are multiple batteries 320, the frequency of battery replacement can be reduced, reasonably extending the usage time of the power supply assembly 300 and the working time of the sensor 101, ultimately improving the ease of use of the sensor 101. The bracket 310 and the support member 230 are detachably connected, for example, by bolts. The bracket 310 includes two support plates 311 and multiple side plates 312. The number of support plates 311 is two, and the number of side plates 312 can be multiple, such as two, three, or four. The two support plates 311 are spaced apart along the axial direction of the housing 110, and the multiple side plates 312 extend along the axial direction of the housing 110, connecting the edges of the two support plates 311. The multiple side plates 312 are spaced apart circumferentially along the housing 110. The support plates 311 and side plates 312 form a limiting cavity 313. Multiple batteries 320 are stacked and disposed within the limiting cavity 313. The limiting cavity 313 effectively limits the positioning of the batteries 320, thereby improving the installation efficiency and accuracy of the batteries 320. By setting the limiting cavity 313, the battery 320 can be installed into the limiting cavity 313 in a direction perpendicular to the axial direction of the outer shell 110. In simple terms, it can be understood as being installed into the limiting cavity 313 from the side of the bracket 310, thereby improving the ease of assembly of the power supply component 300.

[0051] See Figure 5 and Figure 9 In some embodiments, the power supply assembly 300 further includes a negative electrode spring 330 and a positive electrode spring 340. The negative electrode spring 330 is electrically connected to the battery 320 and the second circuit board 221, and the positive electrode spring 340 is also electrically connected to the battery 320 and the second circuit board 221. The positive electrode spring 340 is attached to the side plate 312, and the negative electrode spring 330 includes an abutment portion 331. The two ends of the abutment portion 331 can be respectively inserted into the two side plates 312. The abutment portion 331 and the two support plates 311 are spaced apart along the axial direction of the housing 110, which can be understood as the abutment portion 331 being suspended in the limiting cavity 313. When there are two batteries 320, the two batteries 320 are respectively located on opposite sides of the abutment portion 331 along the axial direction of the housing 110, so that the abutment portion 331 is sandwiched between the two batteries 320, which facilitates the simultaneous electrical connection of the abutment portion 331 with the two batteries 320.

[0052] See Figure 5 and Figure 9In some embodiments, the bracket 310 further includes a lug 314, a retaining ring 315, and a fastener 316. The lug 314 protrudes from one of the side plates 312, such that the lug 314 is located outside the limiting cavity 313. The fastener 316 can be a bolt, which passes through the lug 314 and is threadedly connected to the support body 231 of the support member 230. Therefore, the bolted connection between the bracket 310 and the support member 230 ensures that the negative electrode spring 330 and the positive electrode spring 340 are in close contact with the springs on the second circuit board 221 to prevent loosening, thereby improving the stability and reliability of the electrical connection between the battery 320 and the second circuit board 221. The retaining ring 315 is engaged outside the fastener 316 and abuts against the lug 314. By providing a retaining ring 315, when the fastener 316 is released from the support member 230 and the bracket 310 is unloaded from the support body 231, the retaining ring 315 effectively prevents the fastener 316 from falling off the lug 314, thus improving the ease of assembly of the power supply assembly 300. A receiving cavity 2311 can be provided within the support body 231 of the support member 230, and the bracket 310 is at least partially housed within the receiving cavity 2311. Therefore, the bracket 310 can fully utilize the existing space of the receiving cavity 2311, thereby improving the structural compactness of the sensor 101.

[0053] See Figure 5 , Figure 10 and Figure 11 In some embodiments, the mounting base 102 includes a base body 400, which includes a first mounting unit 410, a second mounting unit 420, and a connector 430. The first mounting unit 410 is fixedly connected to the housing 110 of the sensor 101. Along the thickness direction of the first mounting unit 410, the second mounting unit 420 is spaced apart from the first mounting unit 410 and fixed to a support, thus achieving a fixed connection between the entire detection device 10 and the support. The support can be a desktop, wall, building, or street lamp pole, etc. The connector 430 connects the first mounting unit 410 and the second mounting unit 420, allowing the first mounting unit 410 to rotate relative to the second mounting unit 420 around a rotating axis extending in multiple directions. This allows for various adjustments to the position of the sensor 101, ensuring the sensor 101 is accurately positioned at a specified location, thereby improving the applicability of the sensor 101 to various application scenarios.

[0054] In some embodiments, the connector 430 includes a connecting portion 431 and a ball head 432, which are interconnected. One of the first mounting unit 410 and the second mounting unit 420 is fixedly connected to the connecting portion 431, while the other has a ball hole 413 that rotatably engages with the ball head 432. Therefore, through the engagement of the ball head 432 and the ball hole 413, the ball head 432 can rotate relative to the ball hole 413 in three-dimensional space around an axis extending in any direction. This causes the first mounting unit 410 to rotate relative to the second mounting unit 420 in three-dimensional space around an axis extending in any direction, ultimately causing the sensor 101 to rotate relative to the support in three-dimensional space around an axis extending in any direction. In other embodiments, the connector 430 can be other cams, gears, or linkage mechanisms, as long as it enables the first mounting unit 410 to rotate relative to the second mounting unit 420 around axes extending in multiple directions via the connector 430.

[0055] If sensor 101 cannot rotate relative to the load, or if sensor 101 can only rotate relative to the load around a limited number of axes, then sensor 101 can only detect within a limited detection range. This can be understood as the detection position of sensor 101 being stepped adjustable, thus affecting the detection range of sensor 101. However, for the sensor 101 in the above embodiment, given that the ball head 432 and the ball hole 413 cooperate to allow sensor 101 to rotate relative to the load around axes extending in any direction in three-dimensional space, the detection position of sensor 101 can be understood as steplessly adjustable. This allows the sensor 101 to automatically adjust its monitoring direction and angle, thereby increasing its detection range and applicability to various detection conditions. It also improves the ease of use of sensor 101. It is understood that not only sensor 101 can be connected to mounting base 102, but other moving devices such as cameras can also be connected to mounting base 102. When other moving devices such as cameras are connected to the mounting base 102, the position of the moving device can be steplessly adjusted through the cooperation of the ball head 432 and the ball hole 413, thereby improving the applicability of the moving device to various application scenarios.

[0056] See Figure 11 , Figure 12 and Figure 13In some embodiments, the connecting portion 431 is detachably connected to the second mounting unit 420, for example, the connecting portion 431 and the second mounting unit 420 can be bolted together; the ball hole 413 is formed on the first mounting unit 410. In other embodiments, the connecting portion 431 can be fixedly connected to the first mounting unit 410, and the ball hole 413 can be formed on the second mounting unit 420. The first mounting unit 410 may include a first main cover 411, a first pressure cover 412, and a flexible element 414. The first main cover 411 and the first pressure cover 412 are detachably connected, for example, by threaded connection. The first main cover 411 and the first pressure cover 412 together form a ball hole 413. The flexible element 414 may be made of silicone material, thus possessing excellent flexibility. The flexible element 414 is housed within the ball hole 413. When the ball head 432 engages with the ball hole 413, the ball head 432 will abut against the flexible element 414, that is, the flexible element 414 is abutted between the ball head 432 and the first mounting unit 410. By providing the flexible element 414, the rotational friction between the ball head 432 and the flexible element 414 can be reasonably adjusted, which can also be understood as the damping force of the ball head 432 during rotation, that is, adjusting the damping force of the sensor 101 relative to the load. Obviously, the greater the compression of the flexible component 414, the greater the friction between the ball head 432 and the flexible component 414.

[0057] See Figure 11 and Figure 14 In some embodiments, the second mounting unit 420 is provided with a socket 4211, which mates with the connecting part 431. The cross-sectional shapes of the socket 4211 and the connecting part 431 are matched and are both non-circular. For example, the outer surface of the connecting part 431 includes an arc surface and a flat surface, and the inner wall surface of the socket 4211 also includes an arc surface and a flat surface. When the socket 4211 mates with the connecting part 431, the arc surfaces of the connecting part 431 and the socket 4211 abut against each other, and the flat surfaces of the connecting part 431 and the socket 4211 abut against each other. This can effectively prevent the connecting part 431 from rotating relative to the second mounting unit 420.

[0058] See Figure 11 , Figure 12 and Figure 13In some embodiments, the second mounting unit 420 includes a second main cover 421, a second pressure cover 422, and a magnetic element 423. The second main cover 421 and the second pressure cover 422 are detachably connected, for example, by means of a snap-fit ​​connection. The magnetic element 423 is located within the space enclosed by the second main cover 421 and the second pressure cover 422, and is fixedly connected to the second pressure cover 422, for example, by adhesive bonding. The aforementioned insertion hole 4211 can be provided on the second main cover 421. When the second pressure cover 422 contacts the carrier, the magnetic element 423 can generate a magnetic attraction force with the carrier, so that the entire mounting base 102 is fixed to the carrier by the magnetic attraction force.

[0059] See Figure 11 , Figure 12 and Figure 13 In some embodiments, the sensor 101 and the mounting base 102 are snap-fitted together, allowing the sensor 101 to be detached from the mounting base 102. Therefore, when the sensor 101 needs to be replaced, it can be directly removed from the mounting base 102, or a new sensor 101 can be installed onto the mounting base 102, thus improving the ease of use of the detection device 10. It is understood that when the sensor 101 is damaged, it can be removed from the mounting base 102 and replaced with a new sensor; the entire detection device 10 cannot be scrapped, thus reducing the maintenance cost of the detection device 10. In other embodiments, the sensor 101 and the mounting base 102 can be threaded together, also allowing the sensor 101 to be detached from the mounting base 102, similarly improving the ease of use of the detection device 10 and reducing its maintenance cost.

[0060] In some embodiments, the mounting base 102 may further include sliding latches 520 and fixed latches 530. A locking hole 112 is recessed on the inner wall surface of the inner cavity 111 of the housing 110. The sum of the number of sliding latches 520 and fixed latches 530 is equal to the number of locking holes 112. This allows the sliding latches 520 and fixed latches 530 to engage with different locking holes 112. For ease of description, refer to [reference needed]. Figure 2Some of the slots 112 are designated as first slots 1121, and the remaining slots 112 are designated as second slots 1122. A sliding buckle 520 engages with the first slot 1121, and a fixed buckle 530 engages with the second slot 1122, thereby establishing a snap-fit ​​connection between the mounting base 102 and the sensor 101. The shapes of the first slots 1121 and the second slots 1122 can be the same or different. The fixed buckle 530 is fixedly connected to the base body 400, and the sliding buckle 520 is slidably connected to the base body 400, allowing the sliding buckle 520 to slide closer to or further away from the first slot 1121. In other embodiments, for example, the sensor 101 includes a sliding buckle 520 and a fixed buckle 530, which can be disposed on the housing 110. The first slots 1121 and the second slots 1122 can be disposed on the base body 400, similarly achieving a snap-fit ​​connection between the sensor 101 and the mounting base 102. For example, sensor 101 includes a sliding buckle 520, and a first latching hole 1121 is formed on the base body 400; while mounting base 102 includes a fixing buckle 530, and a second latching hole 1122 is formed on sensor 101. As another example, base body 400 includes a sliding buckle 520, and a first latching hole 1121 is formed on sensor 101; while sensor 101 includes a fixing buckle 530, and a second latching hole 1122 is formed on base body 400. In some embodiments, the number of fixing buckles 530 can be greater than or equal to the number of sliding buckles 520; for example, the number of fixing buckles 530 can be two, and the number of sliding buckles 520 can be one. Both fixing buckles 530 and sliding buckles 520 can be disposed on the first main body cover 411 of the first mounting unit 410. The fixing buckles 530 and sliding buckles 520 are spaced apart circumferentially along the first main body cover 411.

[0061] See Figure 11 , Figure 12 and Figure 13 In some embodiments, the mounting base 102 may further include an elastic element 510, which may be a spring. The sliding buckle 520 is slidably connected to the first mounting unit 410 along an axial direction perpendicular to the connector 430, and the elastic element 510 abuts against the sliding buckle 520 and the first mounting unit 410. For example, the first mounting unit 410 may have a sliding hole 4113, and the elastic element 510 may be received in the sliding hole 4113. The sliding buckle 520 slides and engages with the sliding hole 4113, thus realizing a sliding connection between the sliding buckle 520 and the first mounting unit 410. Of course, the sliding buckle 520 may also be provided with a sliding hole 4113 that slides and engages with the first mounting unit 410.

[0062] See Figure 11 , Figure 12 and Figure 13In some embodiments, the first main body cover 411 of the first mounting unit 410 has a bottom surface 4111 and an outer peripheral surface 4112. The bottom surface 4111 faces the second mounting unit 420 and is disposed away from the sensor 101. The outer peripheral surface 4112 is annular and surrounds the bottom surface 4111. The sliding hole 4113 includes a first sliding section 4113a and a second sliding section 4113b. The first sliding section 4113a and the second sliding section 4113b are interconnected. The first sliding section 4113a is formed by a recess in a portion of the outer peripheral surface 4112, and the second sliding section 4113b is formed by a recess in a portion of the bottom surface 4111. The sliding buckle 520 includes a sliding portion 521 and a force-applying portion 522. The sliding portion 521 is slidably engaged with the first sliding segment 4113a, and the force-applying portion 522 is slidably engaged with the second sliding segment 4113b. The force-applying portion 522 protrudes from the bottom surface 4111, such that one end of the force-applying portion 522 is located outside the second sliding segment 4113b and closer to the second mounting unit 420 relative to the sliding portion 521. The elastic member 510 can abut between the first main body cover 411 and the sliding portion 521.

[0063] The first sliding section 4113a has an opening on its outer peripheral surface 4112. When the elastic member 510 and / or the user apply a force toward the opening to the force-applying part 522, the force-applying part 522 gradually moves closer to the opening in the second sliding section 4113b. The sliding part 521 slides relative to the first sliding section 4113a, so that the length of the sliding part 521 extending out of the opening beyond the first mounting unit 410 increases, that is, the sliding part 521 gradually extends outward, so that the sliding part 521 cooperates with the snap hole 112 to achieve a snap-fit ​​connection with the outer casing 110. When the user applies a force to the force-applying part 522 in the opposite direction to the opening, the force-applying part 522 gradually moves away from the opening in the second sliding section 4113b. The sliding part 521 slides relative to the first sliding section 4113a, so that the length of the sliding part 521 extending from the opening to the first mounting unit 410 is reduced. That is, the sliding part 521 gradually contracts inward, the elastic member 510 is compressed and stores energy, so that the sliding part 521 completely disengages from the locking hole 112, thereby releasing the sliding buckle 520 from the locking hole 112 to release the buckle connection with the outer casing 110.

[0064] During the connection process between the mounting base 102 and the sensor 101, the first mounting unit 410 of the mounting base 102 is first inserted into the inner cavity 111 of the housing 110, and a certain pressure is applied to the mounting base 102. The fixing buckle 530 will engage with the locking hole 112. Under the squeezing action of the housing 110, the sliding buckle 520 gradually contracts inward, and the elastic element 510 is compressed and stores energy, thereby reducing the interference force between the sliding buckle 520 and the housing 110. When the sliding buckle 520 is aligned with the locking hole 112, the sliding buckle 520 will produce a "stepping into space" effect, and the elastic element 510 will release energy and push the sliding buckle 520 to gradually extend outward, so that the sliding buckle 520 engages with the locking hole 112. When the fixing buckle 530 and the sliding buckle 520 engage with different locking holes 112 respectively, the buckle connection between the mounting base 102 and the sensor 101 can be realized. When it is necessary to unload the sensor 101 from the mounting base 102, a force can first be applied to the force application part 522 of the sliding buckle 520 to disengage the sliding buckle 520 from the locking hole 112. Then, a pulling force is applied to the sensor 101 to disengage the fixing buckle 530 from the locking hole 112. This will release the buckling connection between the fixing buckle 530 and the sliding buckle 520 and the housing 110, thereby unloading the sensor 101 from the mounting base 102.

[0065] If the first mounting unit 410 is equipped with all fixing clips 530 and no sliding clips 520, during the assembly of the mounting base 102 and the sensor 101, a large interference resistance will be generated between the fixing clips 530 and the housing 110. Therefore, a large pressure needs to be applied to the mounting base 102 or the sensor 101 to achieve the installation. Similarly, during the disassembly of the mounting base 102 and the sensor 101, a large interference resistance will also be generated between the fixing clips 530 and the housing 110. Therefore, a large pulling force also needs to be applied to the mounting base 102 or the sensor 101 to achieve the disassembly. Therefore, during the assembly and disassembly of the entire detection device 10, the user will need to exert a large amount of force, thereby increasing the difficulty of assembling and disassembling the detection device 10 and ultimately affecting the ease of use of the detection device 10.

[0066] Regarding the detection device 10 in the above embodiments, given the presence of the sliding latch 520, during the assembly process of the detection device 10, the sliding latch 520 will first gradually retract inward, thereby reducing the interference resistance between the sliding latch 520 and the outer shell 110, and also reducing the assembly resistance between the sensor 101 and the mounting base 102. During the disassembly process of the detection device 10, a force can first be applied to the force-applying part 522 of the sliding latch 520, causing the sliding latch 520 to disengage from the latch hole 112, thereby eliminating the interference resistance between the sliding latch 520 and the outer shell 110, and thus reducing the disassembly resistance between the sensor 101 and the mounting base 102. This will reduce the difficulty of assembling and disassembling the detection device 10, ultimately improving the ease of use of the detection device 10.

[0067] See Figure 2 In some embodiments, the outer casing 110 includes a rib 113, which protrudes from the inner wall of the inner cavity 111 and extends axially along the sensor 101. There can be one or more ribs 113. A guide groove 4114 can be provided on the first main body cover 411 of the base body 400. During the insertion of the first main body cover 411 into the inner cavity 111, the rib 113 slides in contact with the guide groove 4114. By engaging the rib 113 with the guide groove 4114, rotation of the first mounting unit 410 relative to the sensor 101 can be effectively prevented. Furthermore, the rib 113 and guide groove 4114 provide excellent positioning, improving the efficiency and accuracy of the assembly between the first mounting unit 410 and the sensor 101. Furthermore, the protruding rib 113 and the guide groove 4114 limit the installation position of the first mounting unit 410 relative to the sensor 101, ensuring that the first mounting unit 410 can only be inserted into the inner cavity 111 at a specific position. This ensures that the protruding rib 113 cooperates with the guide groove 4114, and also ensures that the fixing buckle 530 and the sliding buckle 520 cooperate with the locking hole 112. In other words, the cooperation between the protruding rib 113 and the guide groove 4114 can play a "foolproof" role. In other embodiments, the guide groove 4114 can be formed on the outer shell 110, and the protruding rib 113 can be provided on the base body 400.

[0068] This application also provides an electronic device including the detection device 10 described above. Since the detection device 10 is more convenient to use, the ease of use of the electronic device can be improved.

[0069] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A sensor, characterized by The sensor comprises a shell assembly and a detection assembly. The shell assembly comprises a shell. The detection assembly is arranged in the shell and comprises a support, a first detection unit and a second detection unit.

2. The sensor of claim 1, wherein, The first detection unit comprises a first circuit board and a radar sensing element, and the second detection unit comprises a second circuit board and an infrared sensing element.

3. The sensor of claim 1, wherein, The first circuit board and the second circuit board are electrically connected and arranged on the support.

4. The sensor of claim 1, wherein, The radar sensing element is arranged on the first circuit board, and the infrared sensing element is arranged on the second circuit board.

5. The sensor of claim 4, wherein, The first circuit board is provided with a through hole penetrating through the first circuit board along the thickness direction of the first circuit board.

6. The sensor of claim 1, wherein, The infrared sensing element is protrudingly arranged on the second circuit board and matched with the through hole.

7. The sensor of claim 6, wherein, The first detection unit further comprises a light-sensitive sensing element and / or a temperature and humidity sensing element.

8. The sensor of claim 1, wherein, The light-sensitive sensing element and / or the temperature and humidity sensing element are arranged on the first circuit board.

9. The sensor of claim 8, wherein, In the presence of the light-sensitive sensing element, the shell assembly further comprises a light guide arranged on the shell and in a curved shape.

10. The sensor of claim 9, wherein, The light guide is arranged close to the light-sensitive sensing element to guide light to the light-sensitive sensing element.

11. The sensor of claim 9, wherein, The support comprises a support body and a plurality of support columns. The support body has a support surface, and the plurality of support columns are protrudingly arranged on the support surface and spaced apart along the circumference of the support body. The second circuit board is carried on the support surface, and the first circuit board is carried on the end of the support column away from the support surface and fixedly connected with the support column. The second circuit board is provided with a plurality of clearance holes penetrating through the second circuit board along the thickness direction. The support column is arranged in the clearance hole. The sensor further comprises a power supply assembly comprising a bracket and a battery. The bracket is detachably connected with the support, and the battery is arranged in the bracket and electrically connected with the second circuit board. The bracket comprises two support plates and a plurality of side plates. The two support plates are spaced apart along the axial direction of the shell, and the plurality of side plates are connected between the edges of the two support plates. The support plates and the side plates enclose a limiting cavity. The number of batteries is a plurality, and the plurality of batteries are stacked and arranged in parallel in the limiting cavity. The power supply assembly further comprises a negative spring plate and a positive spring plate electrically connected with the second circuit board and the battery. The number of batteries is two, the positive spring plate is attached to the side plate, and the negative spring plate comprises an abutting portion arranged in the limiting cavity and spaced apart from the two support plates. The abutting portion is clamped between the two batteries. The bracket further comprises a lug, a snap spring and a fastener. The lug is protrudingly arranged on the side plate and located outside the limiting cavity. The fastener is arranged in the lug and threadedly connected with the support. The snap spring is arranged outside the fastener and abuts against the lug.

12. The sensor of claim 8, wherein, The support is provided with a receiving cavity, and the support is at least partially received in the receiving cavity.

13. A detection device, characterized by The sensor of any one of claims 1 to 12.

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