Human sensing device for a cooking appliance, dry boil control assembly and cooking appliance

Abstract

The utility model relates to a stove technical field, especially a kind of human sensing detection device, dry burning control assembly and stove for stove, human sensing detection device includes radar module and mounting bracket, radar module includes radar PCB board and communication connecting piece, communication connecting piece one end is electrically connected with radar PCB board, the other end is used to be electrically connected with the control module of stove, radar PCB board is equipped with radar antenna and radar processor, and radar antenna is PCB board antenna;Radar PCB board is located on mounting bracket, for through mounting bracket and the control PCB board connection of control module, so as to realize the human body response and monitoring in the vicinity of stove by radar antenna, to further send the state whether there is person to control module, make control module realize the takeover of stove, ensure that stove maintains normal use state, simultaneously, radar antenna uses PCB board antenna to ensure the connection reliability of antenna and radar processor, avoid the situation of unstable signal.

Description

Technical Field

[0001] This utility model relates to the field of stove technology, and in particular to a human detection device, an anti-dry burning control component, and a stove for stoves. Background Technology

[0002] When cooking with a stove, if the user is not nearby and the stove is in unattended use, situations such as dry-burning or overflowing pots cannot be addressed promptly. Therefore, users typically need to remain near the stove while cooking to monitor its operation and promptly shut it off in case of issues like dry-burning or overflowing pots, thus preventing dangerous situations.

[0003] However, this prevents users from leaving the stove when other situations arise while cooking, resulting in poor flexibility in stove use and affecting the user experience. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defect of poor detection accuracy caused by inaccurate installation position of human detection device on stove in the prior art, and to provide a human detection device, anti-dry burning control component and stove for stove.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] In a first aspect, this utility model provides a human detection device for a stove, comprising a radar module and a mounting bracket. The radar module includes a radar PCB board and a communication connector. One end of the communication connector is electrically connected to the radar PCB board, and the other end of the communication connector is used for electrical connection to the control module of the stove. The radar PCB board is provided with a radar antenna and a radar processor, wherein the radar antenna is a PCB-on-board antenna. The radar PCB board is mounted on the mounting bracket and is used to connect to the control PCB board of the control module through the mounting bracket.

[0007] This utility model provides a human detection device for stoves, comprising a radar module and a mounting bracket. The radar module includes a radar PCB board and a communication connector. The radar PCB board is equipped with a radar antenna and a radar processor. The communication connector allows the radar PCB board to be electrically connected to the stove's control module. Furthermore, the radar PCB board is detachably connected to the control module's control PCB board via the mounting bracket. This allows the radar antenna to sense and monitor human presence near the stove, identifying whether someone is nearby. The presence status is then sent to the control module, enabling it to take over control of the stove and ensure its normal operation. This ensures the stove can still be used even when the user is away, thus improving the user experience. Additionally, the radar antenna in the radar module is an on-board antenna, which, compared to an external antenna, ensures reliable connection between the antenna and the radar processor, avoiding signal instability. Furthermore, it reduces the structural cost of the radar module and saves internal space within the stove.

[0008] Preferably, the radar antenna is positioned at the middle of the radar PCB board along its own lateral direction.

[0009] This configuration allows the radar antenna to have a wider detection range, thereby improving the radar module's signal transmission performance and the detection performance of the transmitted signals.

[0010] Preferably, the communication connector includes a plurality of connector pins, and the radar PCB board has a plurality of sockets, each corresponding to one of the connector pins; one end of each connector pin passes through a socket and is soldered to the radar PCB board to form the radar module. This configuration ensures reliable connection and fixation between the connector pins and the radar PCB board.

[0011] Preferably, the communication connector further includes a power strip, on which all the connection pins are passed; the mounting bracket is also provided with a side abutment, which is located on the mounting bracket facing the connection pins, and when the mounting bracket and the control PCB are connected, the power strip abuts against the side abutment.

[0012] The connector board integrates all the connection pins to facilitate the connection between the communication connectors and the radar PCB board and control PCB board, while also ensuring the structural stability of the communication connectors. Furthermore, the lateral limiting of the communication connectors constrains the movement of the radar PCB board along the support platform, thereby further ensuring the structural reliability of the radar module during use.

[0013] Preferably, the mounting bracket includes a bracket base and two supporting steps, the two supporting steps being disposed on both sides of the bracket base, and the surface of each supporting step forming a supporting surface, on which the radar PCB board is placed; a surface limiting member is provided at the outer edge of each supporting step, a portion of the surface limiting member extending upward toward the supporting surface to form a limiting groove together with the supporting surface, and the two side portions of the radar PCB board are respectively located within the limiting grooves formed by the surface limiting members of the two supporting steps and the supporting surfaces.

[0014] This design allows the support steps on both sides of the bracket base to support the edges of the radar PCB board, ensuring its orientation stability during use. Furthermore, the surface positioning elements on each support step form a limiting groove with the support surface. This not only facilitates the installation of the radar PCB board but also allows for its positioning along the direction from the support surface towards the surface positioning elements, thus ensuring effective fixation of the radar PCB board.

[0015] Preferably, each of the supporting steps is provided with an elastic abutment at one bottom end; the elastic abutment can deform in a direction away from the limiting groove so that the side of the radar PCB board can slide into the limiting groove, and the elastic abutment can return to its original shape when the bottom of the radar PCB board moves to above the elastic abutment so as to abut against the bottom of the radar PCB board.

[0016] This design allows for the final positioning and support of the installed radar PCB board without affecting its installation relative to the mounting base. It is simple in structure, easy to install, and ensures effective fixation of the radar PCB board.

[0017] Secondly, this utility model provides an anti-dry-burning control component for a stove, which includes the human detection device for the stove as described above; the anti-dry-burning control component also includes a control module, the control module includes a control PCB board and a controller, the controller is disposed on the control PCB board, and the other end of the communication connector is electrically connected to the control PCB board.

[0018] The anti-dry-burning control component described in this utility model has the same beneficial effects as the aforementioned human sensory detection device, and will not be repeated here.

[0019] Preferably, the plane containing the radar PCB intersects with the plane containing the control PCB, forming a first angle of 44°-46°. This arrangement allows the radar PCB to have a superior spatial detection range, enabling the signal to radiate spherically outward from the radar antenna, thereby improving the radar's signal transmission and reception performance.

[0020] Preferably, the communication connector includes a first pin segment and a second pin segment connected to each other, wherein the first pin segment is connected to the radar PCB board, and the second pin segment is connected to the control PCB board; the extension direction of the second pin segment is perpendicular to the plane on which the control PCB board is located.

[0021] This configuration ensures that the second pin of the connector is perpendicular to the plane of the control PCB board. Since the mounting bracket is engaged with the control PCB board vertically when installing the human detection device, the connector pin can be inserted into the corresponding mounting hole on the control PCB board according to the installation direction when connecting the radar module to the control PCB board, thereby achieving electrical connection between the radar PCB board and the control PCB board.

[0022] Thirdly, this utility model provides a stove that includes the anti-dry-burning control component as described above.

[0023] The stove described in this utility model has the same beneficial effects as the aforementioned anti-dry-burning control component, and will not be repeated here.

[0024] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the human touch detection device provided in an embodiment of the present invention.

[0026] Figure 2 This is a schematic diagram of the radar module and radar PCB board provided in an embodiment of the present invention.

[0027] Figure 3 A cross-sectional schematic diagram of the human sensory detection device provided in an embodiment of this utility model.

[0028] Figure 4 This is a structural schematic diagram of the human sensory detection device provided in an embodiment of the present invention from another perspective.

[0029] Figure 5 A schematic diagram of the mounting bracket for the human sensory detection device provided in this embodiment of the utility model.

[0030] Figure 6This is a structural schematic diagram of the mounting bracket for the human sensory detection device provided in an embodiment of the present invention from another perspective.

[0031] Figure 7 A schematic diagram of the communication connector of the radar module of the human detection device provided in this embodiment of the utility model.

[0032] Figure 8 This is a schematic diagram showing the connection between the control PCB board and the human detection device provided in an embodiment of the present invention.

[0033] Figure 9 This is a schematic diagram of the structure of the control PCB board provided in an embodiment of the present invention.

[0034] Explanation of reference numerals in the attached figures:

[0035] 10. Human detection device; 1. Radar module; 11. Radar PCB board; 111. Radar antenna; 112. Radar processor; 12. Communication connector; 121. Connecting pin; 1211. First pin segment; 1212. Second pin segment; 122. Power strip; 2. Mounting bracket; 210. Clearance space; 220. Weight reduction groove; 21. Bracket base; 22. Support step; 23. Surface limiting component; 24. Limiting groove; 25. Elastic abutment component; 26. Side abutment part; 27. Elastic buckle; 28. Bracket connector;

[0036] 20. Control PCB board; 201. Slot;

[0037] a. The first included angle. Detailed Implementation

[0038] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0039] like Figure 1-7 As shown, this embodiment of the invention provides a human detection device 10 for a stove, which includes a radar module 1 and a mounting bracket 2. The radar module 1 includes a radar PCB board 11 and a communication connector 12. One end of the communication connector 12 is electrically connected to the radar PCB board 11, and the other end is used for electrical connection to the stove's control module. Furthermore, the radar PCB board 11 is provided with a radar antenna 111 and a radar processor 112, wherein the radar antenna 111 is a PCB-on-board antenna.

[0040] Specifically, the radar controller can be fixed to the radar PCB board 11 by soldering or surface mounting technology, and signal transmission between the radar antenna 111 and the radar controller can be achieved through traces designed on the radar PCB board 11. The electrical connection between the radar PCB board 11 and the control PCB board 20 is achieved through the communication connector 12. Specifically, at least a portion of the communication connector 12 can be made of metal, such as copper or aluminum, so that the signals emitted by the radar processor 112 can be transmitted to the control module. When the radar antenna 111 is set on the radar PCB board 11, the required antenna structure and routing can be formed on the PCB surface through PCB etching process.

[0041] Furthermore, the radar PCB board 11 is mounted on the mounting bracket 2, and the radar PCB board 11 is used to connect to the control PCB board 20 of the control module through the mounting bracket 2. In this way, the radar PCB board 11 can be fixed on the control PCB board 20, which not only fixes the human detection device 10, but also facilitates the electrical connection between the radar PCB board 11 and the control PCB board 20.

[0042] In specific implementation, the radar antenna 111 on the radar PCB board 11 is electrically connected to the radar processor 112. The radar antenna 111 is used to transmit radio frequency signals and receive echo signals reflected from the target. The radar processor 112 is used to execute algorithms based on the echo signals received by the radar antenna 111 to obtain information such as distance, speed, or angle. Furthermore, the communication connector 12 realizes the electrical connection between the radar PCB board 11 and the control PCB board 20. Therefore, the information obtained by the radar processor 112 can be transmitted to the controller on the control PCB board 20, enabling the controller to perform corresponding operations such as timing and cookware temperature monitoring.

[0043] For example, radar module 1 can be configured to be woken up periodically to collect human signals, and then send the collected data to radar processor 112. Radar processor 112 uses a further built-in algorithm to determine whether someone is present in the area. Based on this, if the stove detects the disappearance of a person during use via radar module 1, it will continuously monitor for a set time, and after the set time has elapsed, it will send control commands to the stove's gas valve, igniter, or induction cooker's power switch, ultimately achieving functions such as adjusting the flame or automatically shutting off the flame. Conversely, if the stove detects the continuous presence of a person during use via radar module 1, radar module 1 can enter a sleep state to reduce power consumption. Specifically, how radar module 1 transmits and receives signals, and how radar processor 112 and controller implement the corresponding program response design, are existing technologies and will not be elaborated upon here.

[0044] In summary, the human detection device 10 for stoves provided by this utility model includes a radar module 1 and a mounting bracket 2. The radar module 1 includes a radar PCB board 11 and a communication connector 12. The radar PCB board 11 is equipped with a radar antenna 111 and a radar processor 112. The communication connector 12 enables the radar PCB board 11 to be electrically connected to the control module of the stove. Furthermore, the radar PCB board 11 is detachably connected to the control PCB board 20 of the control module through the mounting bracket 2. In this way, the radar antenna 111 can realize the sensing and monitoring of human bodies near the stove, thereby identifying whether there is a person near the stove. The status of whether there is a person is then sent to the control module, enabling the control module to take over the stove and ensure that the stove maintains normal operating status. Thus, the stove can still be used normally even when the user leaves the vicinity, thereby improving the user experience. Meanwhile, the radar antenna 111 in radar module 1 adopts a PCB board on-board antenna. Compared with the radar module 1 using an external antenna, it can ensure the reliability of the connection between the antenna and the radar processor 112, avoid signal instability, further reduce the structural cost of radar module 1, and save the internal space of the stove occupied by radar module 1.

[0045] It should be noted that the "PCB board" mentioned above specifically refers to a Printed Circuit Board, which is a substrate used to support and connect electronic components. In this embodiment, the radar PCB board 11 serves as the substrate for mounting the radar antenna 111 and the radar processor 112, and is used for mounting the corresponding components and implementing their functions.

[0046] When the control module is installed with the cooktop, the control PCB board 20 is usually set parallel to the cooktop's base plate, meaning the control PCB board 20 is placed horizontally. Based on this, the radar PCB board 11 needs to be configured to match the control PCB board 20; therefore, the radar PCB board 11 extends laterally in a direction compatible with the horizontal orientation of the control PCB board 20.

[0047] Therefore, based on the above, in order to improve the transmission and reception performance of the radar antenna 111, in some embodiments, the radar antenna 111 can be positioned at the middle of the radar PCB board 11 along its own lateral direction. This arrangement allows the radar antenna 111 to have a larger detection range, thereby improving the signal transmission performance of the radar module 1 and the detection performance of the transmitted signal.

[0048] like Figure 1 and Figure 2As shown, in some embodiments, the communication connector 12 includes a plurality of connection pins 121, and the radar PCB board 11 has a plurality of sockets, with each socket corresponding to one of the connection pins 121. One end of each connection pin 121 passes through a socket and is soldered to the radar PCB board 11 to form the radar module 1. This arrangement ensures reliable connection and fixation between the connection pins 121 and the radar PCB board 11.

[0049] In practice, the connecting pin 121 is electrically connected to the radar processor 112 on the radar PCB board 11 to transmit the instructions output by the radar processor 112 to the control module of the stove for program response. When the connecting pin 121 is soldered to the radar PCB board 11, one end of the connecting pin 121 is first passed through the socket provided on the radar PCB board 11, and then the connecting pin 121 and the radar PCB board 11 are soldered at the socket position to achieve physical and electrical connection between the two.

[0050] In addition, when installing the human detection device 10, the radar PCB board 11 can be soldered and fixed to the connecting pin 121 to form the radar module 1 as a whole, and then the radar module 1 as a whole can be installed on the mounting bracket 2 as a component.

[0051] In one specific embodiment, the communication connector 12 further includes a connector plate 122, on which all the connection pins 121 are threaded. The connector plate 122 integrates all the connection pins 121 to facilitate the connection between the communication connector 12 and the radar PCB board 11 and the control PCB board 20, while also further ensuring the structural stability of the communication connector 12.

[0052] In addition to the aforementioned human detection device 10, this utility model embodiment also provides an anti-dry-burning control component for a stove, which includes the aforementioned human detection device 10 and a control module.

[0053] Specifically, the control module includes a control PCB board 20 and a controller. The controller is mounted on the control PCB board 20, and the other end of the communication connector 12 is electrically connected to the control PCB board 20.

[0054] For example, the controller can also be fixed to the control PCB board 20 using soldering or surface mount technology. Specifically, the communication connector 12 connects one end of its connecting pin 121 to the control PCB board 20 to achieve electrical connection between the radar PCB board 11 and the control PCB board 20. For instance, holes can be pre-drilled on the control PCB board 20, one end of the connecting pin 121 can be inserted into the holes, and soldered to the control PCB board 20 at the locations of the drilled holes.

[0055] like Figure 5 and Figure 6 As shown, in some embodiments, the mounting bracket 2 of the human detection device 10 includes a bracket base 21 and two supporting steps 22. The two supporting steps 22 are respectively disposed on both sides of the bracket base 21, and the surface of each supporting step 22 forms a supporting surface, on which the radar PCB board 11 is placed. This arrangement allows the supporting steps 22 on both sides of the bracket base 21 to support the edges of the radar PCB board 11, ensuring the stability of the radar PCB board 11's orientation during use.

[0056] Based on this, each support step 22 is also provided with a surface limiting member 23 at its outer edge. The surface part extends upward toward the support surface to form a limiting groove 24 together with the support surface. The two side parts of the radar PCB board 11 are respectively located in the limiting groove 24 formed by the surface limiting member 23 of the two support steps 22 and the support surface.

[0057] By setting surface limiting members 23 on each support step 22, the surface limiting members 23 and the support surface can form a limiting groove 24. This not only facilitates the installation of the radar PCB board 11, but also enables the radar PCB board 11 to be positioned along the support surface toward the surface limiting members 23, thereby ensuring the fixing effect of the radar PCB board 11.

[0058] In practice, the outer edge of the side of the radar PCB board 11 can be made to abut against the bottom of the limiting slide groove 24, and the upper and lower surfaces of the radar PCB board 11 can abut against the surface limiting member 23 and the supporting surface, respectively. This can further ensure that when the radar PCB board 11 is slid in the limiting slide groove 24, it can be clamped between the surface limiting member 23 and the supporting step 22, thereby achieving further fixation of the radar PCB board 11.

[0059] It should be noted that when the radar PCB board 11 is placed, the side with the radar antenna 111 is facing upwards, which facilitates the radar antenna 111 transmitting and receiving signals towards the outside of the structure. Furthermore, the vertical direction of the radar PCB board 11 mentioned above refers to the top of the radar PCB board 11 being above the radar PCB board 11, and the bottom of the radar PCB board 11 being below the radar PCB board 11.

[0060] like Figure 1As shown, in one feasible embodiment, the radar PCB board 11 can be mounted above the support base 21 via two supporting steps 22, forming a clearance space 210 between the PCB board 11 and the support base 21. This arrangement can prevent interference between the components on the side of the radar PCB board 11 facing the support base 21 and the support base 21, thus avoiding affecting the reliability and normal function of the components on the radar PCB board 11.

[0061] Furthermore, in some embodiments, an elastic abutment 25 is provided at one bottom end of each support step 22. The elastic abutment 25 can deform in a direction away from the limiting slide groove 24 so that the side of the radar PCB board 11 can slide into the limiting slide groove 24. In addition, the elastic abutment 25 can restore its deformation when the bottom of the radar PCB board 11 moves to the top of the elastic abutment 25 so as to abut against the bottom of the radar PCB board 11.

[0062] Please see Figure 3 As shown. In specific implementation, when the edge of the radar PCB board 11 needs to extend into the limiting groove 24, the elastic abutment 25 can deform by compression to install the radar PCB board 1 on the mounting bracket 2. When the radar PCB board 11 moves to the point where its edge is on the support surface, the compression of the radar PCB board 11 on the elastic abutment 25 fails, and the elastic abutment 25 can then recover its deformation and abut against the bottom of the radar PCB board 11, thereby achieving limiting support for the bottom of the radar PCB board 11.

[0063] This configuration allows for the final positioning and support of the installed radar PCB board 11 without affecting its installation relative to the mounting base. The structure is simple and easy to install, while ensuring the fixation effect on the radar PCB board 11.

[0064] For example, the specific structure of the elastic abutment 25 can be configured as a protrusion extending upward toward the support surface of the support step 22. Specifically, the protrusion extending upward toward the support step 22 can be a vertical extension or an extension at a certain angle to the vertical direction, as long as it can ensure that after the bottom of the radar PCB board 11 moves to the support surface, the elastic abutment 25 is positioned to abut against the bottom of the radar PCB board 11.

[0065] Since the surface limiting member 23 can only limit the radar PCB board 11 in the direction of detachment from the mounting bracket 2, and the elastic abutment member 25 can only limit the radar PCB board 11 in the direction of moving away from the support step 22, in some embodiments, for the limitation along the upper part of the support platform, the communication connector 12 connected to the radar PCB board 11 can be limited to achieve the overall limitation and fixation of the radar PCB board 11 and the communication connector 12.

[0066] For details, please refer to Figure 5 and Figure 6 As shown, the mounting bracket 2 is also provided with a side abutment portion 26, which is located on the mounting bracket 2 facing the connecting pin 121. Furthermore, when the mounting bracket 2 is connected to the control PCB board 20, the connector plate 122 of the communication connector 12 abuts against the side abutment portion 26. This arrangement, by limiting the side of the communication connector 12, constrains the movement of the radar PCB board 11 along the direction above the support platform, thereby further ensuring the structural reliability of the radar module 1 during use.

[0067] The above describes the specific setting method for limiting and fixing the radar PCB board 11 to the mounting plate. Based on the above, when the mounting bracket 2 is connected to the control PCB board 20, the human detection device 10 can be detachably connected to the control PCB board 20 through the mounting bracket 2. This facilitates disassembly of the human detection device 10 when it malfunctions or needs to be replaced, which not only facilitates maintenance but also reduces maintenance costs.

[0068] like Figure 8 and Figure 9 As shown, in some embodiments, the mounting bracket 2 is provided with a resilient snap fastener 27, and the control PCB board 20 has a snap-fit ​​hole 201. The mounting bracket 2 and the control PCB board 20 are connected to each other by the resilient snap fastener 27 snapping into the snap-fit ​​hole 201. This configuration allows for quick assembly and disassembly of the mounting bracket 2 and the control PCB board 20 using the simple snap-fit ​​method of the resilient snap fastener 27 and the snap-fit ​​hole 201. This not only simplifies the installation structure but also improves assembly efficiency.

[0069] Based on the above, in some embodiments, the mounting bracket 2 further includes two bracket connectors 28, which are respectively disposed on both sides of the bracket base 21, and each bracket connector 28 is provided with an elastic buckle 27. For example, the bracket base 21 and the two bracket connectors 28 can be integrally molded to reduce the complexity of structural assembly and avoid installation deviations.

[0070] Specifically, during the engagement of the mounting bracket 2 and the control PCB board 20, the position of the bracket connector 28 with the elastic buckle 27 moves towards the locking hole 201. Furthermore, as the bracket connector 28 passes through the locking hole 201, the elastic buckle 27 deforms, allowing the end of the bracket connector 28 to smoothly pass through the locking hole 201. Once the elastic buckle 27 has completely passed through the locking hole 201, it returns to its original shape, at which point it abuts against the other side of the locking hole 201, thus achieving engagement between the mounting bracket 2 and the control PCB board 20.

[0071] Furthermore, with the elastic buckle 27 engaged in the buckle hole 201, the bottom surface of the mounting bracket 2 can abut against the upper surface of the control PCB board 20. This further ensures that the mounting bracket 2 is installed stably and reliably relative to the control PCB board 20, thus ensuring the stability of the radar module 1 during use and guaranteeing detection accuracy.

[0072] like Figure 3 As shown, after the radar module 1 is connected and fixed to the control PCB board 20 through the mounting bracket 2, the radar PCB board 11 needs to be structurally configured relative to the control PCB board 20.

[0073] Specifically, in some embodiments, the plane where the radar PCB board 11 is located intersects with the plane where the control PCB board 20 is located, forming a first included angle α, which is 44°-46°. This arrangement enables the radar PCB board 11 to have a better spatial detection range, allowing the signal to radiate outwards in a spherical range centered on the radar antenna 111, thereby improving the radar's signal transmission and reception performance.

[0074] In practical implementation, since the radar PCB board 11 is horizontal, the extension direction of the plane on which the radar PCB board 11 is located is the same as the longitudinal extension direction of the radar PCB board 11. That is to say, the surface of the radar PCB board 11 is inclined relative to the horizontal plane so that the radar antenna 111 on the radar PCB board 11 can send and receive signals towards the outside of the stove.

[0075] Based on the above, when setting the communication connector 12, in one feasible manner, the connection pin 121 of the communication connector 12 may include a first pin segment 1211 and a second pin segment 1212 connected to each other, wherein the first pin segment 1211 is connected to the radar PCB board 11, the second pin segment 1212 is connected to the control PCB board 20, and the extending direction of the second pin segment 1212 is perpendicular to the plane on which the control PCB board 20 is located.

[0076] This configuration ensures that the second pin segment 1212 of the connecting pin 121 is perpendicular to the plane of the control PCB board 20. Since the mounting bracket 2 is engaged with the control PCB board 20 in a vertical direction when installing the human detection device 10, the connecting pin can be inserted into the corresponding mounting hole on the control PCB board 20 according to the installation direction when connecting the radar module 1 to the control PCB board 20, thereby realizing the electrical connection between the radar PCB board 11 and the control PCB board 20.

[0077] like Figure 6 As shown, in some embodiments, a weight-reducing groove 220 is also provided in the bracket base 21 of the mounting bracket 2. The weight-reducing groove 220 can further reduce the weight of the mounting bracket 2, improve the structural lightness, and avoid excessive pressure on the control PCB board 20, which could cause damage to the control PCB board 20.

[0078] Example 2

[0079] This utility model provides a stove, which includes a human detection device 10 as described in Embodiment 1 and an anti-dry burning control component including the human detection device 10.

[0080] The stove provided in this embodiment of the utility model includes a human detection device 10 comprising a radar module 1 and a mounting bracket 2. The radar module 1 further includes a radar PCB board 11 and a communication connector 12. The radar PCB board 11 is provided with a radar antenna 111 and a radar processor 112. The communication connector 12 enables the radar PCB board 11 to be electrically connected to the control module of the stove. In addition, the radar PCB board 11 is detachably connected to the control PCB board 20 of the control module through the mounting bracket 2. In this way, the radar antenna 111 can realize the sensing and monitoring of human bodies near the stove, thereby identifying whether there is a person near the stove. The status of whether there is a person is then sent to the control module, enabling the control module to take over the stove and ensure that the stove maintains normal operating status. In this way, the stove can still be used normally even when the user leaves the vicinity, thus improving the user experience. Meanwhile, the radar antenna 111 in radar module 1 adopts a PCB board on-board antenna. Compared with the radar module 1 using an external antenna, it can ensure the reliability of the connection between the antenna and the radar processor 112, avoid signal instability, further reduce the structural cost of radar module 1, and save the internal space of the stove occupied by radar module 1.

[0081] In one implementation, the aforementioned human detection device 10 can be activated via voice control. For example, the cooktop equipped with the anti-dry-burning control component has an intelligent voice control module, which includes a voice receiving module and a voice parsing module. The voice receiving module receives user commands, and the voice parsing module parses the commands. Based on the parsed commands, the controller executes corresponding operations, thereby activating or deactivating the human detection device 10 on the cooktop, thus improving the user experience.

[0082] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A human detection device for stoves, characterized in that, include: A radar module includes a radar PCB board and a communication connector. One end of the communication connector is electrically connected to the radar PCB board, and the other end of the communication connector is used to electrically connect to the control module of the stove. The radar PCB board is provided with a radar antenna and a radar processor, wherein the radar antenna is a PCB-onboard antenna. The radar PCB board is mounted on the mounting bracket and is used to connect to the control PCB board of the control module through the mounting bracket.

2. The human detection device as described in claim 1, characterized in that, The radar antenna is positioned at the middle of the radar PCB board along its own lateral direction.

3. The human detection device as described in claim 1, characterized in that, The communication connector includes several connection pins, and the radar PCB board has several holes, with each hole corresponding to one of the connection pins. One end of the connecting pin passes through the socket and is soldered to the radar PCB board to form the radar module.

4. The human detection device as described in claim 3, characterized in that, The communication connector also includes a power strip, on which all the connection pins are passed; The mounting bracket is also provided with a side abutment portion, which is located on the mounting bracket facing the connecting pin. When the mounting bracket and the control PCB board are connected, the plug board abuts against the side abutment portion.

5. The human detection device as described in any one of claims 1-4, characterized in that, The mounting bracket includes a bracket base and two support steps. The two support steps are respectively located on both sides of the bracket base, and the surface of each support step forms a support surface. The radar PCB board is placed on the support surface. Each of the support steps is provided with a surface limiting member at its outer edge. A portion of the surface limiting member extends upward toward the support surface to form a limiting groove together with the support surface. The two sides of the radar PCB board are respectively located within the limiting grooves formed by the surface limiting members of the two support steps and the support surface.

6. The human detection device as described in claim 5, characterized in that, Each of the aforementioned support steps is provided with an elastic abutment at one bottom end; The elastic abutment can deform in a direction away from the limiting groove so that the side of the radar PCB board can slide into the limiting groove. Furthermore, the elastic abutment can return to its original shape when the bottom of the radar PCB board moves to above the elastic abutment, so as to abut against the bottom of the radar PCB board.

7. A dry-burning prevention control component for a stove, characterized in that, Includes the human detection device for cooktops as described in any one of claims 1-6; The anti-dry-burning control component also includes a control module, which includes a control PCB board and a controller. The controller is located on the control PCB board, and the other end of the communication connector is electrically connected to the control PCB board.

8. The anti-dry-burning control component as described in claim 7, characterized in that, The plane where the radar PCB board is located intersects the plane where the control PCB board is located and forms a first included angle, the angle of which is 44°-46°.

9. The anti-dry-burning control component as described in claim 8, characterized in that, The communication connector includes a first pin segment and a second pin segment connected to each other, wherein the first pin segment is connected to the radar PCB board and the second pin segment is connected to the control PCB board. The extension direction of the second pin segment is perpendicular to the plane on which the control PCB board is located.

10. A stove, characterized in that, Includes the anti-dry-burning control component as described in any one of claims 7-9.

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