Range hood with temperature detection function

Abstract

The embodiment of the utility model discloses a range hood with temperature detection, which comprises a shell, an exhaust fume collecting hood, a posture adjusting mechanism and a temperature measuring module, at least part of the exhaust fume collecting hood is accommodated in the shell, and the exhaust fume collecting hood can stretch out and draw back from the bottom of the shell so as to lift relative to a cooking bench; a smoke collecting cavity is formed in the smoke collecting hood, an air inlet is formed in the smoke collecting hood, and the air inlet is communicated with the smoke collecting cavity; the posture adjusting mechanism is fixed at the bottom of the exhaust fume collecting hood; the temperature measuring module is arranged on the posture adjusting mechanism, the posture adjusting mechanism can adjust the posture of the temperature measuring module, and the temperature measuring module has different postures under the exhaust fume collecting hood with different lifting heights, so that the detection direction of the temperature measuring module always faces the center of a cookware on the cooking bench. According to the embodiment of the utility model, the problem that the temperature measuring module cannot accurately detect the temperature of the cookware in the process of lifting along with the exhaust fume collecting hood is solved, and the temperature measuring module can be adjusted to be always aligned with the cookware by utilizing the posture adjusting mechanism when the exhaust fume collecting hood is at different lifting heights, so that the real-time accurate detection of the temperature of the cookware is realized.

Description

Technical Field

[0001] The embodiment of the utility model relates to the technical field of kitchen appliances, and in particular to a range hood with temperature detection. Background Art

[0002] At present, range hoods with temperature detection usually use infrared temperature measurement modules for temperature detection. The infrared temperature measurement module is installed in a fixed position. By presetting the detection angle and detection range, it can detect the temperature of the pot on the stove. The exhaust power of the range hood can be adjusted according to the temperature of the pot to meet the real-time exhaust needs.

[0003] However, for range hoods that can be raised or lowered, the temperature measuring module is usually fixed on the smoke hood that can be raised or lowered, and the temperature measuring module will rise or fall with the smoke hood. As a result, since the detection angle and detection range of the temperature measuring module are fixed, the temperature measuring module cannot be aligned with the pot in real time at different lifting heights, resulting in differences in temperature detection, inaccurate temperature detection, and inaccurate exhaust control based on temperature, causing the range hood to malfunction. Utility Model Content

[0004] The utility model provides a range hood with temperature detection, which ensures that the temperature measuring module is always aligned with the cookware during the lifting process, realizes accurate temperature detection, and further accurately adjusts the smoke exhaust process.

[0005] In a first aspect, an embodiment of the utility model provides a range hood with temperature detection, which is arranged above a stove, and includes:

[0006] case;

[0007] A smoke collecting hood is at least partially accommodated in the shell, and the smoke collecting hood can be extended and retracted by the bottom of the shell to be raised and lowered relative to the stove; a smoke collecting cavity is arranged inside the smoke collecting hood, and the smoke collecting hood is provided with an air inlet, and the air inlet is communicated with the smoke collecting cavity;

[0008] A posture adjustment mechanism, fixed to the bottom of the smoke hood;

[0009] The temperature measuring module is arranged on the posture adjustment mechanism, and the posture adjustment mechanism can adjust the posture of the temperature measuring module. Under the smoke hood with different lifting heights, the posture adjustment mechanism has different postures so that the detection direction of the temperature measuring module is always toward the center of the pot on the stove.

[0010] Optionally, the posture adjustment mechanism includes a rotating component, the temperature measuring module is arranged on the rotating component, and the temperature measuring module can adjust the rotation angle of the temperature measuring module around a rotation axis extending in a first preset direction.

[0011] Optionally, the posture adjustment mechanism includes a first telescopic component, the temperature measuring module is arranged on the first telescopic component, and the temperature measuring module can adjust the telescopic distance of the temperature measuring module along a second preset direction.

[0012] Optionally, the second preset direction is perpendicular to a direction in which the smoke hood is extended and retracted from the bottom of the shell.

[0013] Optionally, the bottom of the smoke collecting hood is provided with an inclined surface facing the stove, and the posture adjustment mechanism is provided on the inclined surface; and / or

[0014] The range hood further includes a depth camera, which is arranged at the bottom of the shell and faces the stove, and the depth camera is used to collect a depth image of the stove; and / or the range hood further includes a ranging module, which is arranged at the bottom of the smoke hood and faces the stove, and the ranging module is used to measure the distance between the bottom of the smoke hood and the stove.

[0015] Optionally, it also includes:

[0016] The lifting mechanism is connected to the shell and the smoke collecting hood respectively, and the lifting mechanism can drive the smoke collecting hood to be extended and retracted from the bottom of the shell to be lifted and lowered relative to the stove.

[0017] Optionally, the lifting mechanism includes a guide structure and a push rod located inside the guide structure;

[0018] The push rod is provided with a position response module, and when the push rod is extended or retracted to different preset positions of the guide structure, the position response module generates different response signals.

[0019] Optionally, the position response module is a Hall sensor or a micro switch.

[0020] Optionally, it also includes:

[0021] The cleaning mechanism is arranged at the bottom of the shell and can clean the detection surface of the temperature measuring module.

[0022] Optionally, the cleaning mechanism includes a second telescopic assembly and an air nozzle;

[0023] The second telescopic component is fixed on the shell, and the air nozzle is arranged on the second telescopic component; the second telescopic component can drive the air nozzle to extend to the detection surface adjacent to the air nozzle outlet and facing the temperature measurement module.

[0024] Optionally, the gas nozzle is communicated with the smoke collecting chamber, and a filter is provided in the communication channel between the gas nozzle and the smoke collecting chamber.

[0025] Optionally, the cleaning mechanism comprises a third telescopic assembly, a brushing assembly and at least one cleaning brush;

[0026] The third telescopic assembly is fixed on the housing, and the cleaning brush is arranged on the third telescopic assembly; the third telescopic assembly can drive the cleaning brush to extend until the brush surface is in contact with the detection surface of the temperature measurement module;

[0027] The brushing assembly is in driving connection with the cleaning brush, and the brushing assembly can drive the cleaning brush to brush the detection surface of the temperature measuring module in a preset manner.

[0028] Optionally, the preset mode of the brushing component is linear reciprocating motion, swinging or rotation in any direction.

[0029] In the technical solution of the embodiment of the utility model, the range hood with temperature detection includes a shell, a smoke hood, a posture adjustment mechanism and a temperature measuring module, wherein the smoke hood is at least partially accommodated in the shell, and the smoke hood can be extended and retracted by the bottom of the shell to be raised and lowered relative to the stove; a smoke collecting chamber is arranged inside the smoke hood, and the smoke hood is provided with an air inlet, which is connected to the smoke collecting chamber; the posture adjustment mechanism is fixed at the bottom of the smoke hood; the temperature measuring module is arranged on the posture adjustment mechanism, and the posture adjustment mechanism can adjust the posture of the temperature measuring module, and the temperature measuring module has different postures under the smoke hoods with different lifting heights, so that the detection direction of the temperature measuring module is always toward the center of the pot on the stove. The embodiment of the utility model solves the problem that the temperature measuring module cannot accurately detect the temperature of the cookware during the lifting and lowering process of the smoke hood. The posture adjustment mechanism can be used to adjust the temperature measuring module to always aim at the cookware when the smoke hood is at different lifting heights, thereby realizing real-time and accurate detection of the cookware temperature, thereby more accurately reflecting the real-time cooking status of the cookware and the oil fume generation situation, and then feedback-adjusting the exhaust power of the range hood to adapt to the current cooking status and oil fume generation situation, thereby ensuring the normal operation of the range hood and effectively improving the exhaust effect of the range hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a front view of a range hood with temperature detection provided by an embodiment of the utility model in a closed state;

[0031] Figure 2 It is a side view of a range hood with temperature detection provided by an embodiment of the utility model in a closed state;

[0032] Figure 3 It is a front view of a range hood with temperature detection provided by an embodiment of the utility model in an open state;

[0033] Figure 4 It is a side view of a range hood with temperature detection provided by an embodiment of the utility model in an open state;

[0034] Figure 5 It is a side view comparison diagram of a range hood with temperature detection provided by an embodiment of the utility model in different states;

[0035] Figure 6 It is a schematic diagram of the rotation of a temperature measuring module of a range hood with temperature detection provided by an embodiment of the utility model when the range hood is in different states;

[0036] Figure 7 It is a schematic diagram of the extension and contraction of a temperature measuring module of a range hood with temperature detection provided by an embodiment of the utility model when the range hood is in different states;

[0037] Figure 8 It is a structural schematic diagram of a lifting mechanism in a range hood with temperature detection provided by an embodiment of the utility model;

[0038] Fig. 9 It is a schematic diagram of the rotation of a temperature measuring module when the fume hood of a range hood with temperature detection is at different telescopic distances provided by an embodiment of the utility model;

[0039] Fig.10 It is a schematic diagram of the extension and retraction of a temperature measuring module when a fume collecting hood of a range hood with temperature detection is at different extension and retraction distances provided by an embodiment of the utility model;

[0040] Fig.11 It is a structural schematic diagram of another range hood with temperature detection provided by an embodiment of the utility model;

[0041] Figure 12-16 It is a schematic diagram of five cleaning brush sweeping modes provided by the embodiment of the utility model.

[0042] in:

[0043] 1-shell, 11-smoke hood, 110-air inlet, 111-smoke collecting chamber, 112-smoke baffle, 113-inclined surface, 121-guide structure, 122-push rod, 123-position response module, 2-stove, 20-cooker, 30-temperature measurement module, 31-detection surface, 4-depth camera, 51-air nozzle, 52-cleaning brush. DETAILED DESCRIPTION

[0044] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0045] Figure 1 This is a front view of a range hood with temperature detection provided by an embodiment of the utility model in a closed state. Figure 2 This is a side view of a range hood with temperature detection provided by an embodiment of the utility model in a closed state. Figure 3 This is a front view of a range hood with temperature detection provided by an embodiment of the utility model in an open state. Figure 4 This is a side view of a range hood with temperature detection provided by an embodiment of the utility model in an open state. Figure 5 is a side view comparison diagram of a range hood with temperature detection provided by the embodiment of the utility model in different states, refer to Figure 1-Figure 5 The range hood with temperature detection is arranged above the stove 2, and comprises:

[0046] Shell 1;

[0047] The smoke collecting hood 11 is at least partially accommodated in the housing 1. The smoke collecting hood 11 can be extended and retracted by the bottom of the housing 1 to be raised and lowered relative to the stove 2. The smoke collecting hood 11 is provided with a smoke collecting cavity 111 inside. The smoke collecting hood 11 is provided with an air inlet 110, and the air inlet 110 is communicated with the smoke collecting cavity 111.

[0048] The posture adjustment mechanism (not shown in the figure) is fixed to the bottom of the smoke collecting hood 11;

[0049] The temperature measuring module 3 is arranged on a posture adjustment mechanism, which can adjust the posture of the temperature measuring module 3. Under the smoke hood 11 with different lifting heights, the posture adjustment mechanism has different postures so that the detection direction of the temperature measuring module 3 is always toward the center of the pot 20 on the stove 2.

[0050] Among them, the housing 1 is used to accommodate the functional structure of the range hood, such as the smoke hood 11. Those skilled in the art will know that the smoke hood 11 is used to collect the oil smoke generated when cooking on the stove 2, so as to discharge the oil smoke to the outside and prevent the kitchen from being polluted by the oil smoke. Based on the smoke collecting function of the smoke hood 11, a smoke collecting chamber 111 will be provided, and an air inlet 110 will be provided. The air inlet 110 is connected to the smoke collecting chamber 111, and a negative pressure is generated in the smoke collecting chamber 111 through a power component, and then the oil smoke is sucked in by the air inlet 110, so that the oil smoke is discharged to the outside after passing through the smoke collecting chamber 111. It should be supplemented that a smoke baffle 112 can be provided on the air inlet 110, which is opened after the range hood is turned on. The smoke baffle 112 can achieve a smoke collection effect so that the air inlet 110 can inhale the oil smoke. The air inlet 110 can be set at the front side of the smoke collecting chamber 111 as shown in the figure, or it can be set at the bottom of the smoke collecting chamber 111, and there is no limitation here. In addition, in this embodiment, the smoke hood 11 is at least partially accommodated in the housing 1. The essence of this is that the smoke hood 11 can move relative to the housing 1. Specifically, the bottom of the housing 1 can be extended and retracted to be raised and lowered relative to the stove 2. The smoke hood 11 is designed to have a lifting function. The main purpose is to adapt to the height of the pot 20. The smoke hood 11 is located above the pot 20 and the distance from the pot 20 can be adjusted to achieve the best smoking distance, avoid the problem of oil smoke escaping due to the distance between the smoke hood 11 and the pot 20 being too far, and improve the smoking efficiency.

[0051] In addition, the smoke hood 11 in this embodiment is also equipped with a temperature measuring module 3, which can be an infrared temperature sensor. The temperature measuring module 3 is used to detect the temperature of the pot 20 on the stove 2, so as to provide real-time feedback on the cooking state according to the temperature of the pot 20, that is, feedback on the state of the oil smoke generated during cooking, thereby adaptively adjusting the exhaust power of the smoke hood 11 to match the oil smoke state in the current cooking process, thereby achieving a real-time, targeted and effective exhaust effect. Since the temperature measuring module 3 is fixed on the smoke hood 11 and will rise and fall with the rise and fall of the smoke hood 11, a posture adjustment mechanism is added in this embodiment. The function of the posture adjustment mechanism is mainly to adjust the posture of the temperature measuring module 3 during the rise and fall of the smoke hood 11. It can be understood that different postures of the temperature measuring module 3 represent different detection directions, detection ranges and detection areas of the temperature measuring module 3. Therefore, the posture adjustment mechanism here adjusts the posture of the temperature measuring module 3, which essentially represents that the posture adjustment mechanism can adjust the detection direction, detection range, detection area, etc. of the temperature measuring module 3.

[0052] Specifically, in this embodiment, the temperature measuring module 3 is arranged on the posture adjustment mechanism, and the posture adjustment mechanism is fixed at the bottom of the smoke hood 11, and the posture adjustment mechanism can control the detection direction of the temperature measuring module 3 to always be toward the center of the pot 20 on the stove 2 under the smoke hood 11 with different lifting heights. In essence, the posture adjustment mechanism is used to adjust the detection direction of the temperature measuring module 3 according to the actual height of the smoke hood 11, so that the detection direction is always aligned with the center of the pot 20, thereby ensuring the accuracy of the temperature detection of the pot 20 by the temperature measuring module 3, and then according to the real-time measured temperature, the smoke can be exhausted according to the current cooking state of the pot 20, thereby ensuring the accuracy of the feedback adjustment of the range hood exhaust power.

[0053] It should be noted that in this embodiment, the range hood is also integrated with a control module, which is electrically connected to the temperature measuring module 3 and the posture adjustment mechanism, respectively, to receive the temperature detected by the temperature measuring module 3 and send a posture adjustment instruction to the posture adjustment mechanism. At the same time, the control module can also be responsible for determining the height of the pot 20, raising and lowering the smoke hood 11, and adjusting the smoke exhaust power, so as to realize the complete and normal smoke exhaust function of the range hood.

[0054] In the technical scheme of the above embodiment, the range hood with temperature detection includes a shell 1, a smoke hood 11, a posture adjustment mechanism and a temperature measuring module 3, wherein the smoke hood 11 is at least partially accommodated in the shell 1, and the smoke hood 11 can be extended and retracted by the bottom of the shell 1 to be raised and lowered relative to the stove 2; a smoke collecting chamber 111 is arranged inside the smoke hood 11, and the smoke hood 11 is provided with an air inlet 110, which is connected to the smoke collecting chamber 111; the posture adjustment mechanism is fixed at the bottom of the smoke hood 11; the temperature measuring module 3 is arranged on the posture adjustment mechanism, and the posture adjustment mechanism can adjust the posture of the temperature measuring module 3, and the temperature measuring module 3 has different postures under the smoke hood 11 with different lifting heights, so that the detection direction of the temperature measuring module 3 is always toward the center of the pot 20 on the stove 2. The embodiment of the utility model solves the problem that the temperature measuring module 3 cannot accurately detect the temperature of the cooker 20 during the lifting and lowering process of the smoke hood 11. The posture adjustment mechanism can be used to adjust the temperature measuring module 3 to always align with the cooker 20 when the smoke hood 11 is at different lifting heights, thereby realizing real-time and accurate detection of the temperature of the cooker 20, thereby more accurately reflecting the real-time cooking status and oil fume generation of the cooker 20, and then feedback adjusting the exhaust power of the range hood to adapt to the current cooking status and oil fume generation, thereby ensuring the normal operation of the range hood and effectively improving the exhaust effect of the range hood.

[0055] Continue to refer Figure 2 and Figure 4Optionally, the bottom of the smoke collecting hood 11 is provided with an inclined surface 113 facing the stove 2, and the posture adjustment mechanism is arranged on the inclined surface 113. The design of the inclined surface 113 can ensure that the range hood can be aligned with the center of the pot 20 when it is turned off to achieve temperature detection; at the same time, it can also provide a certain reference tilt angle for the temperature measuring module 3, reduce the adjustment amount of the posture adjustment mechanism when adjusting the angle, and improve the speed of posture adjustment.

[0056] Continue to refer Figure 2 and Figure 4 Optionally, the range hood further includes a depth camera 4, which is disposed at the bottom of the housing 1 and faces the stove 2. The depth camera 4 is used to collect a depth image of the stove 2. The depth camera 4 here can collect images at the stove 2, and the image obtained is a depth image with depth information. By analyzing the depth image, the height of the pot 20 on the stove 2 can be obtained, so as to feedback control the opening state of the range hood, or the lifting height of the smoke hood 11 can be feedback controlled so that the range hood has an optimal smoking distance relative to the pot 20, and the optimal smoke exhaust efficiency is achieved to a certain extent.

[0057] Continue to refer Figure 2 and Figure 4 Optionally, the range hood further includes a distance measuring module (not shown in the figure), which is arranged at the bottom of the smoke hood 11 and faces the stove 2, and the distance measuring module is used to measure the distance between the bottom of the smoke hood 11 and the stove 2. The distance measuring module here can be specifically a distance sensor, which can detect the height relative to the stove 2 in real time during the lifting process of the smoke hood 11, so as to accurately control the relative height of the smoke hood 11 relative to the pot 20, so as to achieve the best smoking distance of the range hood relative to the pot 20.

[0058] Figure 6 Schematic diagram of the rotation of the temperature measuring module of a range hood with temperature detection provided by the present utility model when it is in different states, with reference to Figure 6 In a specific embodiment, optionally, the posture adjustment mechanism includes a rotating component, the temperature measuring module 3 is arranged on the rotating component, and the temperature measuring module 3 can adjust the rotation angle of the temperature measuring module 3 around the rotation axis extending in the first preset direction.

[0059] The rotating assembly can adjust the rotation angle of the temperature measuring module 3 around the rotation axis extending in the first preset direction so that it is aligned with the center of the pot 20 at different lifting heights. Figure 6Under the three lifting heights, without adjusting the rotation angle of the temperature measuring module 3, the detection direction of the temperature measuring module 3 is L1. When the range hood is switched from the closed state, i.e., the distance from the stove 2 is X0, to the first open state, i.e., the distance from the stove 2 is X1, it is necessary to adjust the detection direction of the temperature measuring module 3 from L1 to L2, the detection point from point A to O, and the rotation angle is γ1. When the range hood is switched from the closed state, i.e., the distance from the stove 2 is X0, to the second open state, i.e., the distance from the stove 2 is X2, it is necessary to adjust the detection direction of the temperature measuring module 3 from L1 to L3, the detection point from point B to O, and the rotation angle is γ2. It should be noted that if Figure 6 Only two opening states of the range hood are exemplified, but the range hood is not limited to only two opening states. The range hood can achieve continuous height adjustment of the smoke hood 11 according to the height of the cooker 20. Correspondingly, the temperature measuring module 3 can achieve continuous rotation angle adjustment through a rotating component.

[0060] The rotating assembly here can be specifically composed of a driving motor, a transmission assembly and a certain mechanical structure. Those skilled in the art can design it according to actual needs, and there is no limitation here. It can be understood that in order to ensure the rotation of the temperature measuring module 3, the temperature measuring module 3 in the rotating assembly needs to be fixed on a bearing, and the bearing is rotatably fixed on the smoke hood 11, and the rotating axis of the bearing should be preset according to the relative position of the temperature measuring module 3 and the stove 2. Figure 1 and Figure 3 From the perspective shown, the relative position relationship between the range hood and the stove 2 is that the temperature measuring module 3 is located above and at the rear of the stove 2. At this time, in the process of the temperature measuring module 3 rising and falling with the smoke hood 11, the rotation axis around which it rotates should be in the left-right direction, that is, the first preset direction should be in the left-right direction. In addition, it can be understood that in order to use the drive motor to drive the bearing to drive the temperature measuring module 3 to rotate, the transmission assembly in the rotating assembly can generally be provided to include a mutually meshing transmission gear and an arc-shaped rack, the transmission gear is coaxially fixedly connected to the output shaft of the drive motor, and one end of the arc-shaped rack is hinged to the bearing. In the process of the output shaft of the drive motor driving the transmission gear to rotate, the transmission gear drives the arc-shaped rack to slide relative to the smoke hood 11, thereby pulling the bearing to rotate relative to the fixed rotation axis, and then driving the temperature measuring module 3 to rotate relative to the smoke hood 11.

[0061] Figure 7 Schematic diagram of the expansion and contraction of the temperature measuring module of a range hood with temperature detection provided by the present utility model when the range hood is in different states, with reference to Figure 7 In a specific embodiment, optionally, the posture adjustment mechanism includes a first telescopic component (not shown in the figure), the temperature measuring module 3 is arranged on the first telescopic component, and the temperature measuring module 3 can adjust the telescopic distance of the temperature measuring module 3 along the second preset direction.

[0062] Specifically, the second preset direction may be perpendicular to the direction in which the smoke hood 11 is extended from the bottom of the housing 1. When the smoke hood 11 is extended in the vertical direction, the second preset direction may be understood as the horizontal direction, and the first telescopic assembly adjusts the temperature measuring module 3 to extend horizontally.

[0063] The first telescopic component can adjust the telescopic distance of the temperature measuring module 3 along the second preset direction so that it is aligned with the center of the pot 20 at different lifting heights. Figure 7 Under the three lifting heights, on the basis of not adjusting the rotation angle of the temperature measuring module 3, the detection direction of the temperature measuring module 3 is L1. When the range hood is switched from the closed state, i.e., the distance from the stove 2 is X0, to the first open state, i.e., the distance from the stove 2 is X1, the detection direction of the temperature measuring module 3 needs to be adjusted to remain unchanged, that is, the detection point of the temperature measuring module 3 needs to be adjusted from point A to O, extending a distance Y1 in the horizontal direction. When the range hood is switched from the closed state, i.e., the distance from the stove 2 is X0, to the second open state, i.e., the distance from the stove 2 is X2, the detection direction of the temperature measuring module 3 needs to be adjusted to remain unchanged, that is, the detection point of the temperature measuring module 3 needs to be adjusted from point B to O, extending a distance Y2 in the horizontal direction. It should also be noted that if Figure 7 Only two opening states of the range hood are illustrated, but the range hood is not limited to only two opening states. The range hood can realize continuous height adjustment of the smoke hood 11 according to the height of the pot 20. Correspondingly, the temperature measuring module 3 can realize continuous telescopic distance adjustment through the first telescopic component. The first telescopic component here can be specifically composed of a push rod motor, and those skilled in the art can design it according to actual needs, which is not limited here.

[0064] In an optional embodiment, the range hood further comprises: a lifting mechanism (not shown in the figure), which is respectively connected to the shell 1 and the smoke hood 11 , and the lifting mechanism can drive the smoke hood 11 to be extended and retracted from the bottom of the shell 1 to be lifted and lowered relative to the stove 2 .

[0065] Figure 8 This is a structural schematic diagram of a lifting mechanism in a range hood with temperature detection provided by an embodiment of the utility model. Fig. 9 It is a schematic diagram of the rotation of a temperature measuring module when the smoke collecting hood of a range hood with temperature detection is at different telescopic distances provided by an embodiment of the utility model. Fig.10 Schematic diagram of the extension and retraction of the temperature measuring module of a range hood with temperature detection provided by the utility model when the smoke collecting hood is at different extension and retraction distances, with reference to Figure 8-Figure 10The lifting mechanism includes a guide structure 121 and a push rod 122 located inside the guide structure 121; a position response module 123 is provided on the push rod 122, and when the push rod 122 is extended to different preset positions of the guide structure 121, the position response module 123 generates different response signals. In this embodiment, the position response module 123 can be a Hall sensor or a micro switch.

[0066] Specifically, the position response module 123 fixed on the push rod 122 is substantially responsible for detecting the telescopic position of the push rod 122. When the push rod 122 reaches different positions of the guide structure 121, it indicates that the smoke hood 11 is lifted to the corresponding height. Figure 8 As shown, the total stroke of the push rod is AA, and the EE position and the FF position correspond to Fig. 9 and Fig.10 The middle smoke hood 11 is at the telescopic distance of M1 and M2. When the push rod 122 moves to the position response module 123 and aligns with the EE position, the position response module 123 generates a corresponding response signal, which means that the smoke hood 11 extends out by the distance M1; when the push rod 122 moves to the position response module 123 and aligns with the FF position, the position response module 123 generates a corresponding response signal, which means that the smoke hood 11 extends out by the distance M2. Therefore, the telescopic distance of the smoke hood 11 can be determined according to the corresponding response signal of the position response module 123, and then the posture of the temperature measurement module 3 is adjusted through the posture adjustment mechanism, so that the detection direction of the temperature measurement module 3 at different heights of the smoke hood 11 is aligned with the center O of the pot 20.

[0067] As described in the above embodiments, the posture of the temperature measuring module 3 is adjusted at different lifting heights of the smoke hood 11 to match the current height of the smoke hood 11, so that the detection direction of the temperature measuring module 3 is always aligned with the center of the cookware 20, thereby avoiding the problem that the temperature measuring module 3 should be fixed on the liftable smoke hood 11 and cannot always be aligned with the center of the cookware 20 and cannot ensure the temperature measurement accuracy. In order to further ensure the temperature measurement accuracy of the temperature measuring module 3 after long-term use, the present application also supplements other implementation methods to avoid the problem that dust, oil smoke, etc. adhere to the detection surface 31 of the temperature measuring module 3, resulting in inaccurate temperature measurement by the temperature measuring module 3.

[0068] Specifically, in a specific embodiment, the range hood further includes a cleaning mechanism, which is disposed at the bottom of the housing 1 and can clean the detection surface 31 of the temperature measuring module 3 .

[0069] At this time, by setting the cleaning mechanism, the range hood can be provided with a self-cleaning function of the temperature measuring module 3, and the temperature measuring module 3 can be automatically self-cleaned according to a preset period to avoid excessive dust, oil smoke, etc. adhering to the detection surface 31 after a long period of use, which affects the accuracy of temperature detection. The preset period can be daily, weekly, monthly, annual, etc. Of course, based on the cleaning mechanism, from the user's perspective, a self-cleaning command option can also be set on the range hood for the user to choose to actively control the self-cleaning of the temperature measuring module 3.

[0070] Fig.11 is a schematic diagram of the structure of another range hood with temperature detection provided by the embodiment of the utility model, referring to Fig.11 In the range hood, the cleaning mechanism includes a second telescopic component (not shown in the figure) and an air nozzle 51; the second telescopic component is fixed on the shell 1, and the air nozzle 51 is arranged on the second telescopic component; the second telescopic component can drive the air nozzle 51 to extend to the detection surface 31 adjacent to the outlet of the air nozzle 51 and facing the temperature measurement module 3.

[0071] Among them, in order to ensure the simplicity of the appearance of the range hood, the second telescopic component is responsible for the movement function of the air nozzle 51 when the cleaning mechanism is opened and closed. When the cleaning mechanism is closed, the air nozzle 51 needs to be hidden in the housing 1, and when the cleaning mechanism is opened for cleaning, the air nozzle 51 can be extended and aligned with the detection surface 31 of the temperature measurement module 3. The second telescopic component can be integrated with a push rod motor or a rotary motor, and the extension and storage switching action of the air nozzle 51 relative to the range hood housing 1 is realized by using the telescopic movement mode of the push rod motor or the rotary movement mode of the rotary motor. Those skilled in the art can design it according to specific needs, and it is not limited here.

[0072] Further optionally, the air nozzle 51 can be arranged to be connected to the smoke collecting chamber 111, and a filter net (not shown in the figure) can be arranged in the connecting channel between the air nozzle 51 and the smoke collecting chamber 111. At this time, the cleaning power of the air nozzle 51 can utilize the smoke exhaust power of the smoke collecting chamber 111, which can avoid the need for an additional power source for the clean airflow of the air nozzle 51, thereby improving the integration of the equipment. In addition, considering that the smoke collecting chamber 111 is mainly responsible for smoke exhaust, the clean airflow may contain oil smoke in the process of providing clean power. Therefore, a filter net can be arranged in the connecting channel between the air nozzle 51 and the smoke collecting chamber 111 to filter the oil smoke in the clean airflow, thereby achieving self-cleaning and avoiding the cleaning process from contaminating the detection surface 31 of the temperature measurement module 3.

[0073] The cleaning method in the previous embodiment is essentially to clean the detection surface 31 of the temperature measuring module 3 by spraying air through the air nozzle 51, mainly for cleaning dust and other impurities with low adhesion on the detection surface 31, so as to ensure that the temperature measuring module 3 has a certain self-cleaning function of the detection surface 31. Considering that there may be other dirt with strong adhesion on the detection surface 31 of the temperature measuring module 3, in a specific embodiment, the cleaning mechanism may include a third telescopic component (not shown in the figure), a brushing component (not shown in the figure) and at least one cleaning brush 52; the third telescopic component is fixed on the housing 1, and the cleaning brush 52 is arranged on the third telescopic component; the third telescopic component can drive the cleaning brush 52 to extend until the brush surface fits the detection surface 31 of the temperature measuring module 3; the brushing component is in transmission connection with the cleaning brush 52, and the brushing component can drive the cleaning brush 52 to brush the detection surface 31 of the temperature measuring module 3 in a preset manner.

[0074] In this embodiment, the cleaning mechanism includes at least one cleaning brush 52, which essentially uses a brushing method to clean the detection surface 31 of the temperature measuring module 3. It has a relatively stronger cleaning ability and can effectively remove dirt on the detection surface 31 of the temperature measuring module 3, so as to avoid the temperature measurement being inaccurate due to the blockage of the detection surface 31 by dirt. The number of cleaning brushes 52 can be designed according to the area of ​​the detection surface 31 and the moving trajectory of the brushing to ensure that the detection surface 31 is cleaned without dead angles. Similar to the setting of the air nozzle 51, the cleaning brush 52 also needs to extend out of the housing 1 of the range hood when the cleaning mechanism is turned on, and the brush surface is in contact with the detection surface 31 of the temperature measuring module 3. When the cleaning mechanism is closed, it is hidden in the housing 1 of the range hood to ensure the simplicity of the appearance of the range hood. Therefore, the cleaning mechanism also needs to be provided with a third telescopic component. The third telescopic component can be integrated with a push rod motor or a rotary motor, and the telescopic movement of the push rod motor or the rotary movement of the rotary motor can be used to realize the switching action of extending and storing the cleaning brush 52 relative to the range hood housing 1. Those skilled in the art can design it according to specific needs, and no limitation is made here. The difference from the air nozzle 51 is that the brushing action of the cleaning brush 52 requires a corresponding power mechanism, so the cleaning mechanism also needs to be provided with a brushing component to drive the cleaning brush 52 to perform a preset brushing action.

[0075] Figure 12-16 is a schematic diagram of five cleaning brush sweeping modes provided by the embodiment of the utility model, referring to Figure 12-16 Specifically, the preset mode of the brushing component of the present application is linear reciprocating motion, swinging or rotation in any direction, for example, it can be as follows Fig.12 and Fig.13 The reciprocating motion along the straight line shown can be, for example, Fig.14 and Fig.15 The left-right swinging motion of the single cleaning brush 52 or the two cleaning brushes 52 shown in the figure can be, for example, as follows Fig.16The rotational movement of a single cleaning brush 52 is shown.

[0076] Corresponding to the above-mentioned preset brushing mode, a push rod motor or a rotary motor can also be integrated in the brushing component, and the telescopic movement of the push rod motor can be used to drive the cleaning brush 52 to perform linear reciprocating motion, or the rotational movement of the rotary motor can be used to drive the cleaning brush 52 to swing or rotate.

[0077] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, combinations and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A range hood with temperature detection, characterized in that: It is arranged above the stove (2) and comprises: Housing (1); A smoke collecting hood (11) is at least partially accommodated in the shell (1), and the smoke collecting hood (11) can be extended and retracted by the bottom of the shell (1) to be raised and lowered relative to the stove (2); a smoke collecting chamber (111) is provided inside the smoke collecting hood (11), and the smoke collecting hood (11) is provided with an air inlet (110), and the air inlet (110) is communicated with the smoke collecting chamber (111); A posture adjustment mechanism, fixed to the bottom of the smoke collecting hood (11); A temperature measuring module (3) is arranged on the posture adjustment mechanism, and the posture adjustment mechanism can adjust the posture of the temperature measuring module (3). Under the smoke collecting hood (11) of different lifting heights, the temperature measuring module (3) has different postures, so that the detection direction of the temperature measuring module (3) is always toward the center of the pot (20) on the stove (2).

2. The range hood according to claim 1, characterized in that: The posture adjustment mechanism comprises a rotating component, the temperature measuring module (3) is arranged on the rotating component, and the temperature measuring module (3) can adjust the rotation angle of the temperature measuring module (3) around a rotation axis extending in a first preset direction.

3. The range hood according to claim 1, characterized in that: The posture adjustment mechanism comprises a first telescopic component, the temperature measuring module (3) is arranged on the first telescopic component, and the temperature measuring module (3) can adjust the telescopic distance of the temperature measuring module (3) along a second preset direction.

4. The range hood according to claim 3, characterized in that: The second preset direction is perpendicular to the direction in which the smoke collecting hood (11) is extended and retracted from the bottom of the shell (1).

5. The range hood according to claim 1, characterized in that: The bottom of the smoke collecting hood (11) is provided with an inclined surface (113) facing the stove (2), and the posture adjustment mechanism is arranged on the inclined surface (113); and / or The range hood further comprises a depth camera (4), which is arranged at the bottom of the housing (1) and faces the stove (2), and the depth camera (4) is used to collect a depth image of the stove (2); and / or The range hood further comprises a distance measuring module, which is arranged at the bottom of the fume hood (11) and faces the stove (2), and the distance measuring module is used to measure the distance between the bottom of the fume hood (11) and the stove (2).

6. The range hood according to claim 1, characterized in that: Also includes: A lifting mechanism is respectively connected to the shell (1) and the smoke collecting hood (11), and the lifting mechanism can drive the smoke collecting hood (11) to be extended and retracted from the bottom of the shell (1) so as to be lifted and lowered relative to the stove (2).

7. The range hood according to claim 6, characterized in that: The lifting mechanism comprises a guide structure (121) and a push rod (122) located inside the guide structure (121); The push rod (122) is provided with a position response module (123), and when the push rod (122) is extended or retracted to different preset positions of the guide structure (121), the position response module (123) generates different response signals.

8. The range hood according to claim 7, characterized in that: The position response module (123) is a Hall sensor or a micro switch.

9. The range hood according to any one of claims 1 to 8, characterized in that: Also includes: A cleaning mechanism is arranged at the bottom of the housing (1) and can clean the detection surface (31) of the temperature measurement module (3).

10. The range hood according to claim 9, characterized in that: The cleaning mechanism comprises a second telescopic assembly and an air nozzle (51); The second telescopic component is fixed on the shell (1), and the air nozzle (51) is arranged on the second telescopic component; the second telescopic component can drive the air nozzle (51) to extend to a detection surface (31) adjacent to an outlet of the air nozzle (51) and facing the temperature measurement module (3).

11. The range hood according to claim 10, characterized in that: The gas nozzle (51) is in communication with the smoke collecting chamber (111), and a filter screen is provided in the communication channel between the gas nozzle (51) and the smoke collecting chamber (111).

12. The range hood according to claim 9, characterized in that: The cleaning mechanism comprises a third telescopic assembly, a brushing assembly and at least one cleaning brush (52); The third telescopic component is fixed on the housing (1), and the cleaning brush (52) is arranged on the third telescopic component; the third telescopic component can drive the cleaning brush (52) to extend until the brush surface is in contact with the detection surface (31) of the temperature measurement module (3); The brushing assembly is in driving connection with the cleaning brush (52), and the brushing assembly can drive the cleaning brush (52) to brush the detection surface (31) of the temperature measurement module (3) in a preset manner.

13. The range hood according to claim 12, characterized in that: The preset mode of the brushing component is linear reciprocating motion, swinging or rotation in any direction.

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