Oil cup detection device for range hood and range hood

Abstract

The utility model relates to the technical field of range hood detection, in particular to an oil cup detection device for a range hood and the range hood, and the oil cup detection device comprises a guide shell fixedly arranged in an oil cup, the guide shell comprises a containing space and an opening, and the opening is formed in the top of the containing space; the guide shell is communicated with the inner cavity of the oil cup through the side wall or the bottom of the guide shell; the floating assembly comprises a floating part and a signal generator, the signal generator is arranged at the top of the floating part, and the floating part can float up and down in the containing space along with the change of the liquid level in the oil cup so as to move towards or away from the opening; the signal receiver is matched with the signal generator and fixedly arranged on the range hood shell, and the signal receiver is arranged opposite to the opening; according to the utility model, the liquid level of the oil cup is rapidly detected to be the highest liquid level, even if the guide shell is attached by oil dirt in the use process, the detection precision is not influenced, the detection sensitivity is ensured, and the risk of false alarm is reduced; meanwhile, the guide shell is convenient to disassemble, and the cleaning difficulty is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to range hood detection technical field, especially a kind of oil cup detection device and range hood for range hood. BACKGROUND

[0002] With the development of science and technology, the application of range hood is gradually widespread, user installs range hood in kitchen, when cooking, range hood can extract oil fume in kitchen.Usually, range hood is equipped with oil cup device, and the oil fume extracted by range hood can flow into the oil cup device after condensation.

[0003] The oil cup device generally includes an internal oil cup device and an external oil cup device. In order to avoid the risk of oil spillage of the oil cup device, a detection oil level detection device is usually provided to avoid the risk of oil spillage. The internal oil cup needs to be opened at the bottom of the oil cup to install a pressure sensor. When the user cleans the oil cup and drops oil, it will cause poor detection accuracy of the pressure sensor, and there is a risk of false alarm, which will cause the user to be reminded when the oil cup is not full or overflows. The external oil cup is arranged in the upper part of the oil cup inside, but it will be attached by oil stains during long-term use, which will reduce the sensitivity of the detection device and increase the risk of false alarm. In addition, since the oil cup is mostly long and large in size, it is difficult to clean after being attached by oil stains.

[0004] Based on the shortcomings of the prior art, it is urgent to develop an oil cup detection device and range hood for range hood to solve the above problems. INVENTION CONTENTS

[0005] In order to solve the above technical problems, the utility model provides an oil cup detection device and range hood for range hood, which realizes rapid detection of the oil cup liquid level at the highest liquid level. Even if the guide housing is attached by oil stains during use, it does not affect the detection accuracy, ensures high detection sensitivity, and reduces the risk of false alarm. At the same time, the guide housing is easy to disassemble, which reduces the cleaning difficulty.

[0006] The utility model provides an oil cup detection device for range hood, which comprises an oil cup for containing oil, and the oil cup detection device comprises:

[0007] A guide housing is fixedly arranged in the oil cup and comprises a containing space and an opening in communication with each other. The opening is arranged at the top of the containing space. The guide housing is in communication with the inner cavity of the oil cup through the side wall or bottom of the guide housing.

[0008] A floating assembly is arranged in the containing space and comprises a floating member and a signal generator. The signal generator is arranged at the top of the floating member. The floating member can float up and down in the containing space along with the change of the liquid level in the oil cup to move towards or away from the opening.

[0009] A signal receiver matched with the signal generator is fixedly arranged on the range hood shell, and the signal receiver is arranged opposite to the opening.

[0010] Further, in the case that the oil cup is at the highest oil level, the farthest signal receiving surface of the signal receiver is located at the top of the floating member.

[0011] Further, the top of the guide shell is in the same plane with the top of the oil cup.

[0012] Further, the guide shell further comprises a connecting member.

[0013] The guide shell is provided with a mounting groove, and the connecting member is arranged in the mounting groove.

[0014] Further, the connecting member is a magnetic member, and the guide shell and the oil cup are magnetically connected through the magnetic member.

[0015] Further, the inner side wall of the oil cup is provided with a connecting structure matched with the connecting member, and the oil cup is fixedly connected with the guide shell through the connecting member and the connecting structure.

[0016] Further, the bottom of the guide shell has a gap with the bottom of the oil cup, or the bottom of the guide shell abuts against the bottom of the oil cup.

[0017] Further, the height of the guide shell is 10%-100% of the height of the oil cup.

[0018] Further, the guide shell and the floating member are both columnar structures, and the height of the floating member is less than the height of the guide shell.

[0019] The diameter of the top of the floating member, the diameter of the opening, the diameter of the bottom of the floating member and the diameter of the guide shell change from small to large.

[0020] The utility model further protects a range hood, which comprises the oil cup detection device for the range hood.

[0021] The embodiment of the utility model has the following beneficial effects:

[0022] The utility model discloses a floating component and signal generator fixed on it change in the guide casing with the oil cup liquid level change, when the oil cup liquid level rises to the highest liquid level, the floating component also rises to the preset height, the signal of signal generator on the floating component can be received by the signal receiver fixed on the range hood casing at this moment, that is, the signal that the oil cup is full is obtained, realizes the quick detection that the oil cup liquid level is at the highest liquid level, even if the guide casing is attached by the oil dirt in the use process, also does not influence the detection accuracy, guarantees higher detection sensitivity, and reduces the false alarm risk, and the guide casing is convenient to detach simultaneously, reduces the cleaning difficulty. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme of the utility model, the following will be to the embodiment or prior art description needed to use the drawing briefly introduced. Obviously, the following description in the drawing is only some embodiments of the utility model, for ordinary skilled person in the art comes, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0024] Fig. 1 It is the structure diagram of the guide casing of the embodiment;

[0025] Fig. 2 It is the structure diagram of the floating component of the embodiment;

[0026] Fig. 3 It is the relative position schematic view of the guide casing and signal receiver of the embodiment.

[0027] In the drawing, the reference mark corresponds to:

[0028] 1-guide casing;2-floating component;3-signal receiver;11-opening;12-mounting groove. DETAILED DESCRIPTION

[0029] The technical scheme in the utility model embodiment will be clearly and completely described below in conjunction with the drawings in the utility model embodiment, obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by ordinary skilled person in the art without making creative labor belong to the range of the utility model protection.

[0030] It should be noted that the terms "first", "second" and the like in the description and in the claims of the utility model of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0031] In view of the defects of the prior art, the utility model through the cooperation of the guide housing and the floating assembly, realize the floating piece and the signal generator fixed on it change in the guide housing with the oil cup liquid level, when the oil cup liquid level rises to the highest liquid level, the floating piece also rises to the preset height, at this time the signal emitted by the signal generator on the floating piece can be received by the signal receiver fixed on the range hood shell, that is, the signal that the oil cup is full is obtained, the highest liquid level of the oil cup is detected quickly, even if the guide housing is attached by oil stains during use, it does not affect the detection accuracy, ensures higher detection sensitivity, and reduces the risk of false reporting. At the same time, the guide housing is easy to disassemble, reducing the difficulty of cleaning.

[0032] Referring to the accompanying Figs. 1-3 The embodiment provides an oil cup detection device for a range hood, the range hood comprising an oil cup for containing oil, the oil cup detection device comprising: a guide housing 1 fixedly arranged in the oil cup, comprising a containing space and an opening 11 in communication with each other, the opening being arranged at the top of the containing space, the guide housing 1 being in communication with the inner cavity of the oil cup through the side wall or the bottom of the guide housing 1; a floating assembly arranged in the containing space, comprising a floating piece 2 and a signal generator, the signal generator being arranged at the top of the floating piece 2, the floating piece 2 being capable of floating up and down in the containing space to move towards or away from the opening along with the change of the liquid level in the oil cup; a signal receiver 3 matched with the signal generator, fixedly arranged on the range hood shell, the signal receiver 3 being arranged opposite to the opening 11.

[0033] It should be noted that: in the embodiment, the guide housing 1 and the floating assembly cooperate with each other, the floating piece and the signal generator fixed thereon change in the guide housing 1 along with the change of the oil cup liquid level, when the oil cup liquid level rises to the highest liquid level, the floating piece 2 also rises to the preset height, at this time the signal emitted by the signal generator on the floating piece 2 can be received by the signal receiver 3 fixed on the range hood shell, that is, the signal that the oil cup is full is obtained, the highest liquid level of the oil cup is detected quickly, even if the guide housing 1 is attached by oil stains during use, it does not affect the detection accuracy, ensures higher detection sensitivity, and reduces the risk of false reporting. At the same time, the guide housing 1 is easy to disassemble, reducing the difficulty of cleaning.

[0034] Specifically, the guide housing 1 comprises a top surface, a bottom surface and at least two connecting columns, the top surface and the ground are connected through the at least two connecting columns, the floating member 2 can enter the containing space of the guide housing 1 from the gap between the adjacent two connecting columns at a certain angle, and the floating member 2 is rotated to be parallel to the axis of the guide housing 1.

[0035] In the embodiment, the number of the connecting columns is not limited, as long as the connecting columns can connect the top surface and the bottom surface.

[0036] Preferably, the guide housing 1 comprises four connecting columns, the four connecting columns are uniformly arranged, and form a Faraday cage.

[0037] In the embodiment, the opening 11 is arranged at the top of the guide housing 1, the thickness of the region where the opening 11 is arranged is not limited, and the diameter of the opening 11 is also not limited, as long as the floating member 2 arranged in the guide housing 1 cannot move out of the opening 11.

[0038] Specifically, the material of the guide housing 1 is stainless steel, and the material of the floating member 2 is at least one of ABS or PC, by arranging the floating member 2 to be the above material, the floating member 2 can be ensured to float up and down in the guide housing 1.

[0039] Specifically, the signal generator is a device capable of emitting signals, and the specific structure is not limited, as long as it can cooperate with the signal receiver 3 to realize signal transmission.

[0040] Preferably, the signal generator is an NFC antenna, and the NFC antenna is fixed at the top of the floating member 2.

[0041] In some possible embodiments, when the oil cup is at the highest oil level surface, the farthest signal receiving surface of the signal receiver 3 is located at the top of the floating member 2, by limiting the farthest signal receiving surface of the signal receiver 3, it can be ensured that only when the oil in the oil cup is at the highest oil level surface, the signal emitted by the signal generator on the floating member 2 can be received by the signal receiver 3, so that the detection sensitivity is ensured.

[0042] Specifically, the farthest receiving distance of the signal receiver 3 is determined, the highest position of the floating member 2 is determined through the farthest receiving distance, when the floating member 2 is at the highest position, the floating member 2 is clamped with the opening 11, and the opening 11 limits the movement of the floating member 2 towards the signal receiver 3.

[0043] In some possible embodiments, the top of the guide housing 1 is in the same plane as the top of the oil cup. By arranging the top of the guide housing 1 in the same plane as the top of the oil cup, the installation difficulty of the oil cup detection device can be improved, and arranging the top of the guide housing 1 in the same plane as the top of the oil cup can ensure that the float 2 in the guide housing 1 can detect the highest liquid level of the oil cup. If the guide housing 1 is arranged in the oil cup and the guide housing 1 has a gap from the top of the oil cup, the float 2 cannot detect the highest liquid level of the oil cup, which causes the oil cup detection device to have a false alarm risk.

[0044] In some possible embodiments, the guide housing 1 further comprises a connecting piece; the guide housing 1 is provided with a mounting groove 12, and the connecting piece is arranged in the mounting groove 12. The mounting groove 12 is arranged opposite to the opening 11. By arranging the mounting groove 12 at the bottom of the guide housing 1, the height of the guide housing 1 can be approximately equal to the height of the oil cup. By fixing the guide housing 1 to the bottom of the oil cup through the connecting piece, the top of the guide housing 1 can be arranged in the same plane as the top of the oil cup, which reduces the installation difficulty while ensuring the detection sensitivity.

[0045] In this embodiment, the shape of the mounting groove 12 is not limited as long as the mounting groove 12 can accommodate the connecting piece.

[0046] Preferably, the mounting groove 12 is a circular groove.

[0047] In some possible embodiments, the connecting piece is a magnetic piece, and the guide housing 1 is magnetically connected to the oil cup through the magnetic piece. By arranging the connecting piece as a magnetic piece, the connection structure between the guide housing 1 and the oil cup is simplified, and the manufacturing cost is reduced.

[0048] Specifically, the magnetic piece is a magnet, and the magnetic force of the magnetic piece is set according to actual conditions, as long as the guide housing 1 in the oil cup cannot be detached due to the rising or falling of the oil.

[0049] In this embodiment, the structure of the connecting piece is not limited as long as the magnetic piece is compatible with the mounting groove 12.

[0050] Preferably, the connecting piece is a cylindrical structure compatible with the mounting groove 12.

[0051] In some possible embodiments, the inner side wall of the oil cup is provided with a connecting structure matched with the connecting piece, and the oil cup is fixedly connected to the guide housing 1 through the connecting piece and the connecting structure. By fixing the guide housing 1 to the inner side wall of the oil cup, the height of the guide housing 1 required can be shortened, the cost of the guide housing 1 can be reduced, and the oil cup detection device can be adapted to oil cups of different heights, thereby optimizing the adaptation range of the oil cup detection device.

[0052] Specifically, the connecting piece is arranged on the connecting column of the guide shell 1, and the connecting structure is matched with the connecting piece to realize the fixed connection of the oil cup side wall and the guide shell 1.

[0053] In the embodiment, the connecting structure can be a threaded hole or a clamping structure, and the connecting piece is a screw or a clamping structure matched with the connecting structure.

[0054] In some possible embodiments, the connecting structure includes a sliding rail and a limiting piece, the sliding rail is arranged in the length direction, the connecting piece is a sliding piece matched with the sliding rail in sliding, and the limiting piece can move up and down in the position of the sliding piece, which further reduces the installation difficulty of the oil cup detection device and enables the oil cup detection device to adapt to oil cups of different heights, thereby optimizing the adaptation range of the oil cup detection device.

[0055] In some possible embodiments, the bottom of the guide shell 1 has a gap with the bottom of the oil cup, or the bottom of the guide shell 1 abuts against the bottom of the oil cup, on the basis that the oil cup detection device is arranged on the inner side wall of the oil cup, the gap between the bottom of the guide shell 1 and the bottom of the oil cup can shorten the height of the guide shell 1 required, thereby reducing the cost of the guide shell 1.

[0056] Specifically, after the connecting column of the guide shell 1 is connected with the inner side wall of the oil cup, the bottom of the guide shell 1 can have a gap with the bottom of the oil cup according to actual conditions, or the bottom of the guide shell 1 can abut against the bottom of the oil cup.

[0057] In some possible embodiments, the height of the guide shell 1 is 10%-100% of the height of the oil cup, by setting the height of the guide shell 1 in the range, the oil cup detection device can adapt to oil cups of different heights, thereby optimizing the adaptation range of the oil cup detection device.

[0058] Specifically, the height of the guide shell 1 is 10%-20%, 20%-40%, 20%-80%, 30%-100%, 40%-90%, 80%-90% or 80%-100% of the height of the oil cup, and the like.

[0059] In some possible embodiments, the height of the guide shell 1 is 10% of the height of the oil cup, and such a setting can reduce the overall size of the oil cup detection device and the preparation cost of the oil cup detection device on the basis of ensuring the detection sensitivity.

[0060] In some possible embodiments, the guide housing 1 and the floating member 2 are both columnar structures, the height of the floating member 2 is less than the height of the guide housing 1, and the diameter of the top of the floating member 2, the diameter of the opening 11, the diameter of the bottom of the floating member 2 and the large diameter of the guide housing 1 change from small to large, by setting the relevant sizes of the guide housing 1 and the floating member 2 in the above ranges, it can be ensured that the floating member 2 can be inserted into the guide housing 1 by the adjacent connecting plunger, the floating member 2 can move up and down along the axial direction of the guide housing 1 and will not move out of the opening 11, and the stability of the cooperation of the guide housing 1 and the floating member 2 is ensured.

[0061] Specifically, the guide housing 1 is a cylindrical structure, and the floating member 2 is a circular trapezoidal structure, the diameter of the upper surface of the circular trapezoidal structure is less than the diameter of the lower surface of the circular trapezoidal structure, the diameter of the upper surface of the circular trapezoidal structure is less than the diameter of the opening 11, the diameter of the lower surface of the circular trapezoidal structure is greater than the diameter of the opening 11, and the large diameter of the guide housing 1 is greater than the diameter of the lower surface of the circular trapezoidal structure.

[0062] In the embodiment, the height of the floating member 2 is 40%-80% of the height of the guide housing 1.

[0063] Specifically, the height of the floating member 2 is 40%-50%, 40%-60%, 40%-70%, 40%-80%, 50%-80%, 60%-80% or 70%-80% of the height of the guide housing 1, etc.

[0064] Preferably, the height of the floating member 2 is 40% of the height of the guide housing 1.

[0065] The utility model also protects a kind of range hood, including above-mentioned oil cup detection device for range hood.

[0066] In the embodiment, the range hood is provided with the above-mentioned oil cup detection device, so that the floating member and the signal generator fixed thereon can change in the guide housing 1 with the change of oil cup liquid level, when the oil cup liquid level rises to the highest liquid level, the floating member 2 also rises to the preset height, at this time, the signal emitted by the signal generator on the floating member 2 can be received by the signal receiver 3 fixed on the range hood shell, i.e. the signal that the oil cup is full is obtained, the oil cup liquid level at the highest liquid level is quickly detected, even if the guide housing 1 is attached by oil stains during use, the detection accuracy is not affected, the high detection sensitivity is ensured, and the false alarm risk is reduced; meanwhile, the guide housing 1 is easy to disassemble, the cleaning difficulty is reduced, and the user's use experience is improved.

[0067] The working process of the oil cup detection device is as follows: during the working process of the range hood, the oil in the oil cup is continuously increased, and the oil surface in the oil cup is continuously rising. The floating element 2 in the guide housing 1 is continuously rising with the rising of the oil surface. When the oil surface rises to the highest oil surface, the floating element 2 also rises to the limit position in the guide housing 1. At this time, the signal receiver 3 receives the signal emitted by the signal generator arranged at the top of the floating element 2. At this time, the detection of the highest liquid level of the oil cup is completed.

[0068] Embodiment one

[0069] Referring to the accompanying drawings Figs. 1-3 The embodiment provides an oil cup detection device for a range hood. The range hood comprises an oil cup for containing oil. The oil cup detection device comprises a guide housing 1 fixedly arranged in the oil cup, a containing space and an opening 11 being in communication with each other, the opening being arranged at the top of the containing space, the guide housing 1 being in communication with the inner cavity of the oil cup through the side wall or the bottom of the guide housing 1; a floating assembly arranged in the containing space, the floating assembly comprising a floating element 2 and a signal generator, the signal generator being arranged at the top of the floating element 2, the floating element 2 being capable of floating up and down in the containing space to move towards or away from the opening with the change of the liquid level in the oil cup; and a signal receiver 3 matched with the signal generator, the signal receiver 3 being fixedly arranged on the range hood housing, the signal receiver 3 being arranged opposite to the opening 11.

[0070] In the embodiment, the top of the guide housing 1 and the top of the oil cup are located in the same plane. By arranging the top of the guide housing 1 and the top of the oil cup in the same plane, the installation difficulty of the oil cup detection device can be improved. By arranging the top of the guide housing 1 and the top of the oil cup in the same plane, it can be ensured that the floating element 2 in the guide housing 1 can detect the highest liquid level of the oil cup. If the guide housing 1 is arranged in the oil cup and there is a gap between the guide housing 1 and the top of the oil cup, the floating element 2 cannot detect the highest liquid level of the oil cup, which causes the oil cup detection device to have the risk of false reporting.

[0071] In the embodiment, the guide housing 1 and the floating element 2 are both columnar structures, the height of the floating element 2 is less than the height of the guide housing 1; the diameter of the top of the floating element 2, the diameter of the opening 11, the diameter of the bottom of the floating element 2 and the large diameter of the guide housing 1 change from small to large.

[0072] Specifically, the guide housing 1 is a cylindrical structure, and the floating element 2 is a circular trapezoidal structure. The diameter of the upper surface of the circular trapezoidal structure is less than the diameter of the lower surface of the circular trapezoidal structure. The diameter of the upper surface of the circular trapezoidal structure is less than the diameter of the opening 11. The diameter of the lower surface of the circular trapezoidal structure is greater than the diameter of the opening 11. The large diameter of the guide housing 1 is greater than the diameter of the lower surface of the circular trapezoidal structure.

[0073] In the embodiment, the height of the floating element 2 is 40%-80% of the height of the guide housing 1.

[0074] Preferably, the height of the floating member 2 is 40% of the height of the guide housing 1.

[0075] Specifically, the guide housing 1 comprises a top surface, a bottom surface and at least two connecting columns, the top surface and the ground are connected through the at least two connecting columns, the floating member 2 can enter the containing space of the guide housing 1 from the gap between the adjacent two connecting columns at a certain angle, and the floating member 2 is rotated to be parallel to the axis of the guide housing 1.

[0076] In the embodiment, the number of the connecting columns is not limited, as long as the connecting columns can connect the top surface and the bottom surface.

[0077] Preferably, the guide housing 1 comprises four connecting columns, which are uniformly arranged to form a Faraday cage.

[0078] In the embodiment, the opening 11 is arranged at the top of the guide housing 1, and the thickness of the region where the opening 11 is arranged and the diameter of the opening 11 are not limited, as long as the floating member 2 arranged in the guide housing 1 cannot move out of the opening 11.

[0079] Specifically, the material of the guide housing 1 is stainless steel, and the material of the floating member 2 is at least one of ABS or PC, and the floating member 2 can be arranged to float up and down in the guide housing 1 by being arranged to the above material.

[0080] In the embodiment, the guide housing 1 further comprises a connecting member; the guide housing 1 is provided with a mounting groove 12, the connecting member is arranged in the mounting groove 12, and the mounting groove 12 is arranged opposite to the opening 11. By arranging the mounting groove 12 at the bottom of the guide housing 1, the height of the guide housing 1 can be approximately equal to the height of the oil cup, and the guide housing 1 can be fixed to the bottom of the oil cup through the connecting member, so that the top of the guide housing 1 can be located in the same plane as the top of the oil cup, thereby reducing the installation difficulty on the basis of ensuring the detection sensitivity.

[0081] In the embodiment, the shape of the mounting groove 12 is not limited, as long as the mounting groove 12 can install the connecting member.

[0082] Preferably, the mounting groove 12 is a circular groove.

[0083] In the embodiment, the connecting member is a magnetic member, and the guide housing 1 and the oil cup are magnetically connected through the magnetic member.

[0084] Specifically, the magnetic member is a magnet, and the magnetic force of the magnetic member is set according to the actual situation, as long as the guide housing 1 cannot fall off in the oil cup due to the rising or falling of the oil.

[0085] In the embodiment, the structure of the connecting piece is not limited as long as the magnetic piece is adapted to the mounting groove 12.

[0086] Preferably, the connecting piece is a cylindrical structure adapted to the mounting groove 12.

[0087] In the embodiment, the inner side wall of the oil cup is provided with a connecting structure matched with the connecting piece, and the oil cup is fixedly connected with the guide housing 1 through the connecting piece and the connecting structure. By fixing the guide housing 1 on the inner side wall of the oil cup, the height of the required guide housing 1 can be shortened, the cost of the guide housing 1 can be reduced, and the oil cup detection device can be adapted to oil cups of different heights, thereby optimizing the adaptation range of the oil cup detection device.

[0088] Specifically, the connecting piece is arranged on the connecting column of the guide housing 1, and the connecting structure is matched with the connecting piece to realize the fixed connection between the side wall of the oil cup and the guide housing 1.

[0089] In the embodiment, the connecting structure can be a threaded hole or a clamping structure, and the connecting piece is a screw or a clamping structure matched with the connecting structure.

[0090] In the embodiment, the bottom of the guide housing 1 has a gap with the bottom of the oil cup, or the bottom of the guide housing 1 abuts against the bottom of the oil cup.

[0091] Specifically, after the connecting column of the guide housing 1 is connected with the inner side wall of the oil cup, the bottom of the guide housing 1 can be arranged to have a gap with the bottom of the oil cup according to actual conditions, or the bottom of the guide housing 1 can be arranged to abut against the bottom of the oil cup.

[0092] In the embodiment, the height of the guide housing 1 is 10%-100% of the height of the oil cup.

[0093] In some possible embodiments, the height of the guide housing 1 is 10% of the height of the oil cup. In this way, the overall size of the oil cup detection device can be reduced and the preparation cost of the oil cup detection device can be reduced on the basis of ensuring detection sensitivity.

[0094] In the embodiment, in the case that the oil cup is at the highest oil level surface, the farthest signal receiving surface of the signal receiver 3 is located at the top of the floating piece 2.

[0095] Specifically, the farthest receiving distance of the signal receiver 3 is determined, and the highest position of the floating piece 2 is determined by the farthest receiving distance. When the floating piece 2 is at the highest position, the floating piece 2 is clamped with the opening 11, and the opening 11 limits the movement of the floating piece 2 towards the signal receiver 3.

[0096] Specifically, the signal generator is a device capable of emitting signals, and the specific structure is not limited as long as it can cooperate with the signal receiver 3 to realize signal transmission.

[0097] Preferably, the signal generator is an NFC antenna, which is fixed on the top of the floating member 2.

[0098] The above has described the embodiments of the present application, the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, practical application or improvement of the technology in the market, or to enable other ordinary skilled in the art to understand the embodiments disclosed herein.

[0099] In the case of no conflict, the above-mentioned embodiments and features in the embodiments can be combined with each other.

[0100] The above disclosed is only a preferred embodiment of the utility model, of course cannot with this to limit the utility model right scope, therefore the equivalent change made by the utility model claim still belongs to the range covered by the utility model.

Claims

1. An oil cup detection device for a range hood, the range hood including an oil cup for containing oil, the oil cup detection device comprising: The oil cup detection device comprises: a guide housing (1) fixedly arranged in the oil cup, comprising a containing space and an opening (11) in communication with each other, the opening being arranged at the top of the containing space, the guide housing (1) being in communication with the inner cavity of the oil cup through the side wall or the bottom of the guide housing (1); a floating assembly arranged in the containing space, comprising a floating member (2) and a signal generator arranged at the top of the floating member (2), the floating member (2) being capable of floating up and down in the containing space along with the change of the liquid level in the oil cup to move towards or away from the opening; a signal receiver (3) matched with the signal generator, fixedly arranged on the range hood housing, the signal receiver (3) being arranged opposite to the opening (11).

2. The grease cup detection apparatus for a range hood according to claim 1, characterized by, In the case that the oil cup is at the highest oil level, the farthest signal receiving surface of the signal receiver (3) is located at the top of the floating member (2).

3. The oil cup detection device for a range hood according to claim 1, characterized by, The top of the guide housing (1) is located in the same plane as the top of the oil cup.

4. The oil cup detection device for a range hood according to claim 1, characterized by, The guide housing (1) further comprises a connecting member; the guide housing (1) is provided with a mounting groove (12), the connecting member being arranged in the mounting groove (12), the mounting groove (12) being arranged opposite to the opening (11).

5. The grease cup detection apparatus for a range hood according to claim 4, characterized by, The connecting member is a magnetic member, the guide housing (1) and the oil cup being magnetically connected through the magnetic member.

6. The oil cup detection device for a range hood according to claim 3, characterized by, The inner side wall of the oil cup is provided with a connecting structure matched with the connecting member, the oil cup being fixedly connected with the guide housing (1) through the connecting member and the connecting structure.

7. The oil cup detection device for a range hood according to claim 6, characterized by, The bottom of the guide housing (1) has a gap with the bottom of the oil cup, or the bottom of the guide housing (1) abuts against the bottom of the oil cup.

8. The oil cup detection device for a range hood according to claim 7, characterized by, The height of the guide housing (1) is 10%-100% of the height of the oil cup.

9. The device for detecting an oil cup of a range hood according to any one of claims 1 to 8, wherein The guide housing (1) and the floating member (2) are both columnar structures, the height of the floating member (2) being less than the height of the guide housing (1); the diameter of the top of the floating member (2), the diameter of the opening (11), the diameter of the bottom of the floating member (2) and the large diameter of the guide housing (1) vary from small to large.

10. A range hood characterized by The oil cup detection device for range hood comprises the oil cup detection device according to any one of claims 1-9.

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