Door lock detection device and dish washing machine

Abstract

The utility model relates to the technical field of dish-washing machine door lock detection, in particular to a door lock detection device and a dish-washing machine. The magnetic field detection assembly is used for detecting the magnetic field intensity generated by the elastic magnetic part; the first end of the driving assembly can be fixedly connected with a door body of the dish washing machine, and the second end of the driving assembly is fixedly connected with the second end of the elastic magnetic part; under the driving of a door body of the dish-washing machine, the first end of the driving assembly can move towards one side far away from the magnetic field detection assembly, and the second end of the driving assembly can drive the elastic magnetic part to be switched from an original state to an extension state; the magnetic field detection assembly determines the relative position of the door body of the dish-washing machine by detecting the magnetic field intensity of the elastic magnetic parts with different lengths, the position detection precision of the door body of the dish-washing machine relative to the dish-washing machine shell is guaranteed, the operation stability of the door body of the dish-washing machine is guaranteed, and potential safety hazards are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to dish-washing machine door lock detection technical field, especially door lock detection device and dish-washing machine. BACKGROUND

[0002] The existing washing household appliances all have door lock detection, and the door lock catch is located on the door body, and the lock catch will be against the micro switch when the door is closed, so that the circuit is conducted, and the main control MCU carries out detection and judgment, the conventional door switch detection mode can detect the door switch signal very conveniently, but the micro switch may be unable to play the role of door detection due to mechanical wear, insufficient lubrication, spring fatigue and other problems after long-term use, and the micro switch may be blocked by foreign matter, so that the micro switch is always connected, the dish-washing machine door lock detection is abnormal, and there is a safety hazard.

[0003] Based on the shortcomings of the prior art, it is urgent to research a door lock detection device and dish-washing machine to solve the above problems. UTILITY MODEL CONTENTS

[0004] In order to solve the above technical problems, the magnetic field detection assembly in the utility model determines the relative position of the door body of the dish-washing machine by detecting the magnetic field strength of the elastic magnetic force piece of different lengths, ensures the position detection accuracy of the door body of the dish-washing machine relative to the dish-washing machine shell, avoids the abnormal position detection of the door body of the dish-washing machine, ensures the stability of the operation of the door body of the dish-washing machine, avoids the safety hazard, and further improves the use experience of the user.

[0005] The utility model provides a door lock detection device, which comprises:

[0006] The elastic magnetic force piece can be stretched under the action of external force, the first end of the elastic magnetic force piece can be fixedly connected with the dish-washing machine, and the elastic magnetic force piece has an original state and an elongated state with different magnetic field strengths;

[0007] A magnetic field detection assembly is arranged correspondingly to the elastic magnetic force piece, and the magnetic field detection assembly is used for detecting the magnetic field strength generated by the elastic magnetic force piece;

[0008] A driving assembly, the first end of the driving assembly can be fixedly connected with the door body of the dish-washing machine, and the second end of the driving assembly is fixedly connected with the second end of the elastic magnetic force piece;

[0009] Under the driving of the door body of the dish-washing machine, the first end of the driving assembly can move towards the side away from the magnetic field detection assembly, and the second end of the driving assembly can drive the elastic magnetic force piece to switch from the original state to the elongated state.

[0010] Further, the elastic magnetic force piece has a first magnetic field strength in the original state.

[0011] The elastic magnetic force piece has a second magnetic field strength in the elongated state; the first magnetic field strength is greater than the second magnetic field strength.

[0012] Further, the magnetic field detection assembly is arranged in the magnetic field region of the elastic magnetic force piece.

[0013] Further, the magnetic field detection assembly and the elastic magnetic force piece are both fixedly connected with the dishwasher shell, and the magnetic field detection assembly is electrically connected with the power supply.

[0014] Further, the driving assembly comprises a pull rope and at least two rollers.

[0015] The first end of the pull rope is fixedly connected with the door body of the dishwasher, and the second end of the pull rope is fixedly connected with the second end of the elastic magnetic force piece after being sequentially wound around the at least two rollers.

[0016] Further, the at least two rollers satisfy at least one of the following features:

[0017] The axes of the at least two rollers are arranged in the height direction of the dishwasher.

[0018] The at least two rollers are arranged in the width direction of the dishwasher; the dishwasher has a sealing end and an opening end covered by the door body of the dishwasher, and the direction from the sealing end to the opening end is the width direction of the dishwasher.

[0019] One of the at least two rollers is arranged close to the sealing end, and the other roller is arranged close to the opening end.

[0020] Further, the elastic magnetic force piece satisfies at least one of the following features:

[0021] The elastic magnetic force piece is arranged directly below or directly above the magnetic field detection assembly.

[0022] The length of the elastic magnetic force piece is greater than the length of the magnetic field detection assembly.

[0023] The elastic magnetic force piece is arranged in the width direction of the dishwasher.

[0024] The utility model also protects a kind of dishwasher, including dishwasher shell, the door body of dishwasher and the door lock detection device as described above;

[0025] The door body of the dishwasher is arranged at an opening end of the dishwasher housing, and the door body of the dishwasher is rotationally connected with the opening end.

[0026] The door lock detection device is arranged on the dishwasher housing, and is used to obtain the relative position of the door body of the dishwasher relative to the dishwasher housing.

[0027] Further, the door body of the dishwasher comprises a free end and a fixed end arranged oppositely.

[0028] The fixed end is rotationally connected with the opening end, and the free end can rotate relative to the fixed end.

[0029] The door lock detection device is arranged below the dishwasher, and the first end of the driving assembly is arranged close to the free end.

[0030] Further, in the case that the elastic magnetic force piece is in the original state, the free end and the fixed end are both abutted against the opening end.

[0031] In the case that the elastic magnetic force piece is in the elongated state, the fixed end is abutted against the opening end, and the free end has a gap with the opening end.

[0032] The embodiment of the present application has the following beneficial effects:

[0033] The present application sets the elastic magnetic force piece, the magnetic field detection assembly and the driving assembly in cooperation, realizes linkage of the elastic magnetic force piece and the door body of the dishwasher, and the elastic magnetic force piece can be stretched and contracted under the driving of the door body of the dishwasher. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical scheme of the present application, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without any creative effort.

[0035] Figure 1 The structure diagram of the dishwasher with the door lock detection device of the present embodiment.

[0036] In the drawings, the reference signs correspond to:

[0037] 1-dishwasher shell; 2-door body; 3-elastic magnetic force piece; 4-magnetic field detection assembly; 5-pull rope; 6-roller. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0039] It should be noted that the terms "first", "second" and the like in the description and claims of the present application and the above drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0040] In view of the defects of the prior art, the present application sets up the elastic magnetic force piece, the magnetic field detection assembly and the driving assembly which cooperate with each other, realizes linkage of the elastic magnetic force piece and the door body of the dishwasher, the elastic magnetic force piece can be stretched under the driving of the door body of the dishwasher, the magnetic field detection assembly determines the relative position of the door body of the dishwasher by detecting the magnetic field strength of the elastic magnetic force piece of different lengths, ensures the position detection accuracy of the door body of the dishwasher relative to the dishwasher shell, avoids abnormal position detection of the door body of the dishwasher, ensures the stability of the operation of the door body of the dishwasher, avoids safety hazards, and further improves the use experience of the user.

[0041] Referring to the drawings, Figure 1 The present embodiment provides a door lock detection device, which comprises: an elastic magnetic force piece 3 capable of stretching under the action of external force, a first end of the elastic magnetic force piece 3 being capable of being fixedly connected with a dishwasher, the elastic magnetic force piece 3 having an original state and an elongated state with different magnetic field strengths; a magnetic field detection assembly 4 arranged correspondingly to the elastic magnetic force piece 3, the magnetic field detection assembly 4 being used for detecting the magnetic field strength generated by the elastic magnetic force piece 3; a driving assembly, a first end of the driving assembly being capable of being fixedly connected with a door body 2 of the dishwasher, a second end of the driving assembly being fixedly connected with a second end of the elastic magnetic force piece 3; under the driving of the door body 2 of the dishwasher, the first end of the driving assembly is capable of moving towards the side away from the magnetic field detection assembly 4, and the second end of the driving assembly is capable of driving the elastic magnetic force piece 3 to switch from the original state to the elongated state.

[0042] It should be noted that: in the present embodiment, by setting the mutually cooperating elastic magnetic force piece 3, the magnetic field detection assembly 4 and the driving assembly, the elastic magnetic force piece 3 is linked with the door body 2 of the dishwasher, under the driving of the door body 2 of the dishwasher, the elastic magnetic force piece 3 can be stretched and contracted, the magnetic field detection assembly 4 determines the relative position of the door body 2 of the dishwasher by detecting the magnetic field strength of the elastic magnetic force piece 3 of different lengths, ensures the position detection accuracy of the door body 2 of the dishwasher relative to the dishwasher shell, avoids the abnormality of the door body position detection of the dishwasher, ensures the stability of the operation of the door body 2 of the dishwasher, avoids the hidden danger, and further improves the use experience of the user.

[0043] In the present embodiment, the door lock detection device is used to detect the relative position relationship between the door body 2 of the dishwasher and the dishwasher shell 1, in the case that the door body 2 of the dishwasher and the dishwasher shell 1 are completely abutted, it is equivalent to that the door body 2 of the dishwasher is completely closed, that is, it can be regarded as that the door lock on the dishwasher is in the closed state; in the case that the door body 2 of the dishwasher and the dishwasher shell 1 are not abutted, it is equivalent to that the door body 2 of the dishwasher is not closed, that is, it can be regarded as that the door lock on the dishwasher is in the open state, so as to realize the relative position relationship of the door body 2 of the dishwasher relative to the dishwasher shell 1, and correspond to the state of the door lock on the dishwasher, avoid the micro switch on the door body 2 of the dishwasher being stuck by foreign matters, cause the micro switch to be always connected, the door lock detection of the dishwasher is abnormal, and further ensure the accuracy of the door lock detection of the dishwasher.

[0044] In the present embodiment, in the case that the door body 2 of the dishwasher is rotated to open relative to the dishwasher shell 1, the elastic magnetic force piece 3 can be elongated under the driving of the driving assembly, the magnetic field strength of the elastic magnetic force piece 3 is weakened; in the case that the door body 2 of the dishwasher is rotated to close relative to the dishwasher shell 1, the elastic magnetic force piece 3 will restore to the original state from the elongated state under the action of the elastic rebound force of the elastic magnetic force piece 3, the magnetic field strength of the elastic magnetic force piece 3 is gradually enhanced, after the door body 2 of the dishwasher is completely closed, the elastic magnetic force piece 3 restores to the original state, and the magnetic field strength corresponding to the elastic magnetic force piece 3 restores to the maximum.

[0045] In the present embodiment, the elastic rebound force generated by the elastic magnetic force piece 3 can be applied to the door body 2 of the dishwasher, and thus the weight of the door body 2 of the dishwasher does not need to be borne by the user, and the use experience of the user is improved.

[0046] In some possible embodiments, the magnetic field detection assembly 4 obtains the magnetic field variation amount of the elastic magnetic force piece 3 in stretching or contraction, to determine the opening angle of the door body 2 of the dishwasher relative to the dishwasher shell 1, and also can determine whether the door body 2 of the dishwasher is closed.

[0047] In some possible embodiments, the magnetic field strength of the elastic magnetic force piece 3 is the first magnetic field strength when the elastic magnetic force piece 3 is in the original state; the magnetic field strength of the elastic magnetic force piece 3 is the second magnetic field strength when the elastic magnetic force piece 3 is in the elongated state; the first magnetic field strength is greater than the second magnetic field strength; the magnetic field strength corresponding to the elastic magnetic force piece 3 when the elastic magnetic force piece 3 is in the elongated state is less than the magnetic field strength corresponding to the elastic magnetic force piece 3 when the elastic magnetic force piece 3 is in the original state; in this way, the elastic magnetic force piece 3 that moves coordinately with the door body 2 of the dishwasher can reflect the relative position relationship between the door body 2 of the dishwasher and the dishwasher shell 1, the magnetic field detection assembly 4 determines the relative position relationship of the door body 2 of the dishwasher through the detected magnetic field strength, so as to avoid the abnormal detection of the dishwasher door lock, ensure that the opening or closing of the door body 2 of the dishwasher can be accurately acquired, avoid safety hazards, and improve the user experience.

[0048] In this embodiment, the elastic magnetic force piece 3 is switched from the original state to the elongated state during the opening of the door body 2 of the dishwasher, and the magnetic field strength of the elastic magnetic force piece 3 gradually weakens in this process; the elastic magnetic force piece 3 is switched from the elongated state to the original state during the rotation of the door body 2 of the dishwasher from opening to closing, and the magnetic field strength of the elastic magnetic force piece 3 gradually strengthens in this process; and the magnetic field strength of the elastic magnetic force piece 3 weakens to the weakest when the door body 2 of the dishwasher is opened to the maximum angle, and the magnetic field strength of the elastic magnetic force piece 3 strengthens to the strongest when the door body 2 of the dishwasher is completely closed.

[0049] In this embodiment, the elastic magnetic force piece 3 can be elongated under the action of an external force, and the material of the elastic magnetic force piece 3 is a magnetic material that can be elastically deformed, which is not limited herein.

[0050] Preferably, the elastic magnetic force piece 3 is spring steel.

[0051] In some possible embodiments, the magnetic field detection assembly 4 is arranged in the magnetic field region of the elastic magnetic force piece 3, which can ensure that the magnetic field detection assembly 4 can detect the change of the magnetic field of the elastic magnetic force piece 3 and ensure the detection accuracy of the relative position of the door body 2 of the dishwasher.

[0052] In this embodiment, the magnetic field detection assembly 4 is located in the magnetic field region generated by the elastic magnetic force piece 3, regardless of whether the elastic magnetic force piece 3 is in the original state or in the elongated state.

[0053] In this embodiment, the magnetic field detection assembly 4 is arranged above or below the elastic magnetic force piece 3, which can ensure that the magnetic field strength generated by the elastic magnetic force piece 3 can be acquired.

[0054] In some possible embodiments, the magnetic field detection assembly 4 and the elastic magnetic force piece 3 can be fixedly connected with the dishwasher shell 1, and the magnetic field detection assembly 4 is electrically connected with the power supply. By fixedly connecting the magnetic field detection assembly 4 with the dishwasher shell 1, displacement of the magnetic field detection assembly 4 during detection of the elastic magnetic force piece 3 can be avoided, and the detection precision of the elastic magnetic force piece 3 can be ensured. Meanwhile, by fixedly connecting one end of the elastic magnetic force piece 3 with the dishwasher shell 1, it can be ensured that the elastic magnetic force piece 3 can be elongated under the driving of the driving assembly, and the elastic magnetic force piece 3 can be ensured to move cooperatively with the door body 2 of the dishwasher, so that the length of the elastic magnetic force piece 3 can be opposite to the relative positional relationship between the door body 2 of the dishwasher and the dishwasher shell 1, and the stability of the position detection of the door body 2 of the dishwasher can be ensured.

[0055] In the embodiment, the first end of the elastic magnetic force piece 3 is fixedly connected with the dishwasher shell 1, the magnetic field detection assembly 4 is fixedly arranged on the dishwasher shell 1 and electrically connected with the power supply, the magnetic field detection assembly 4 can be a magnetic switch or a Hall sensor, and the elastic magnetic force piece 3 is a trigger source of the magnetic switch or the Hall sensor.

[0056] In some possible embodiments, the driving assembly includes a pull rope 5 and at least two rollers 6. The first end of the pull rope 5 can be fixedly connected with the door body 2 of the dishwasher, and the second end of the pull rope 5 is fixedly connected with the second end of the elastic magnetic force piece 3 after being sequentially arranged around the at least two rollers 6. By arranging the pull rope 5 and the at least two rollers 6 that cooperate with each other, the elastic magnetic force piece 3 can be elongated along with the rotation of the door body 2 of the dishwasher, so that the linkage operation of the elastic magnetic force piece 3 and the door body 2 of the dishwasher can be ensured, and the linkage structure can be simplified and the manufacturing cost can be reduced.

[0057] In the embodiment, the pull rope 5 cannot be elongated or contracted under the action of external force, that is, the pull rope 5 cannot be elongated or contracted under the driving of the door body 2 of the dishwasher, and the pull rope is only used to elongate the elastic magnetic force piece 3. The rollers 6 are fixedly arranged on the dishwasher shell 1.

[0058] In some possible embodiments, the at least two rollers 6 satisfy at least one of the following features: the axes of the at least two rollers 6 are arranged along a height direction of the dishwasher; the at least two rollers 6 are arranged along a width direction of the dishwasher, wherein the dishwasher has a sealed end and an open end covered by the door body 2 of the dishwasher, the width direction of the dishwasher is from the sealed end to the open end, one of the at least two rollers 6 is arranged close to the sealed end, and the other roller 6 is arranged close to the open end, the pulling path of the pull rope 5 around the rollers 6 can be optimized by arranging the at least two rollers 6 along the height direction of the dishwasher, so that the pull rope 5 can pull the elastic magnetic piece 3 and the door body 2 of the dishwasher more easily; the pulling path of the pull rope 5 can be further optimized by arranging the at least two rollers 6 along the width direction of the dishwasher, so that the pull rope 5 can pull the elastic magnetic piece 3 and the door body 2 of the dishwasher more easily.

[0059] In the embodiment, the driving assembly includes two rollers 6, and the door body 2 of the dishwasher, the first part of the pull rope 5, the first roller 6, the second part of the pull rope 5, the second roller 6, the third part of the pull rope 5, and the elastic magnetic piece 3 are sequentially arranged along the force transmission direction, the second part of the pull rope 5 is connected with the two rollers 6 respectively, the third part of the pull rope 5 is connected with the second roller 6 and the elastic magnetic piece 3 respectively, and the second part of the pull rope 5, the third part of the pull rope 5, and the elastic magnetic piece 3 are arranged in parallel, so that the relative position relationship between the door body 2 of the dishwasher can be reflected by the change distance of the elastic magnetic piece 3, and the accuracy of detection of the door body 2 of the dishwasher is ensured.

[0060] Specifically, the door body 2 of the dishwasher, the first roller 6, the elastic magnetic piece 3, and the magnetic field detection assembly 4 are arranged on one side close to the door body 2 of the dishwasher, and the second roller 6 is arranged on the other side of the door body 2 of the dishwasher.

[0061] In the embodiment, along the height direction of the dishwasher, the heights of the first roller 6, the second roller 6, and the elastic magnetic piece 3 are inconsistent, the height of the first roller 6 is higher than that of the second roller 6, and the third part of the pull rope 5 tangent to the second roller 6 is connected to the middle position of the elastic magnetic piece 3, so that the stretching direction of the elastic magnetic piece 3 is parallel to the width direction of the dishwasher under the driving of the door body 2 of the dishwasher, and energy waste can be avoided.

[0062] In some possible embodiments, the elastic magnetic force piece 3 satisfies at least one of the following characteristics: the elastic magnetic force piece 3 is arranged directly below or directly above the magnetic field detection assembly 4; the length of the elastic magnetic force piece 3 is greater than the length of the magnetic field detection assembly 4; and the elastic magnetic force piece 3 is arranged along the width direction of the dishwasher, and the elastic magnetic force piece 3 is arranged directly below or directly above the magnetic field detection assembly 4, so that the magnetic field detection assembly 4 can more accurately detect the change in the magnetic field strength of the elastic magnetic force piece 3, thereby ensuring the position detection accuracy of the door body 2 of the dishwasher relative to the dishwasher shell 1; meanwhile, the length of the elastic magnetic force piece 3 is greater than the length of the magnetic field detection assembly 4, so that the elastic magnetic force piece 3 is in an elongated or original state, and the magnetic field detection assembly 4 is located above the elastic magnetic force piece 3, that is, the detection accuracy of the magnetic field detection assembly 4 on the change in the magnetic field strength of the elastic magnetic force piece 3 is ensured.

[0063] Preferably, in the case that the elastic magnetic force piece 3 is in the original state, the magnetic field detection assembly 4 is arranged directly above the elastic magnetic force piece 3, so that the space between the second roller 6 and the elastic magnetic force piece 3 can be reasonably utilized, the structure is more compact, and the overall size is optimized.

[0064] The utility model also protects a kind of dishwasher, including dishwasher shell 1, the door body 2 of dishwasher and above door lock detection device;The door body 2 of dishwasher is arranged at the opening end of dishwasher shell 1, and the door body 2 of dishwasher is rotatably connected with opening end;Door lock detection device is arranged on dishwasher shell 1, and door lock detection device is used to obtain the relative position of the door body 2 of dishwasher relative to dishwasher shell 1, and the above dishwasher includes door lock detection device, which can realize the cooperation of the elastic magnetic force piece 3, the magnetic field detection assembly 4 and the driving assembly, realize the linkage of the elastic magnetic force piece 3 and the door body 2 of dishwasher, under the driving of the door body 2 of dishwasher, the elastic magnetic force piece 3 can be telescopic, the magnetic field detection assembly 4 determines the relative position of the door body 2 of dishwasher by detecting the magnetic field strength of elastic magnetic force piece 3 of different lengths, ensures the position detection accuracy of the door body 2 of dishwasher relative to dishwasher shell, avoids abnormality in the door body position detection of dishwasher, ensures the stability of the door body 2 of dishwasher, avoids security risk, and further improves the use experience of user.

[0065] In the embodiment, the door lock detection device can be arranged above, below, left or right of the dishwasher shell 1, by optimizing the number and arrangement position of the roller 6 in the driving assembly, the door lock detection device can be arranged at any position of the dishwasher shell 1, and by optimizing the number and arrangement position of the roller 6, the telescopic direction of the elastic magnetic force piece 3 is parallel to the width direction of the dishwasher.

[0066] Preferably, the door lock detection device is arranged below the dishwasher shell 1.

[0067] In some possible embodiments, the door body 2 of the dishwasher includes a fixed end and a free end arranged oppositely; the fixed end is rotationally connected with the opening end, and the free end is rotatable relative to the fixed end; the door lock detection device is arranged below the dishwasher, and the first end of the driving assembly is arranged close to the free end. By arranging the door lock detection device below the dishwasher, the overall structure of the dishwasher can be optimized, the door lock detection device can be avoided from protruding, and the overall size of the dishwasher can be avoided from being increased.

[0068] In some possible embodiments, the door lock detection device can be connected with any position of the door body 2 of the dishwasher, and the door body 2 of the dishwasher drives the pull rope 5 to move relative to the roller 6 in the process of rotating relative to the dishwasher housing 1.

[0069] In some possible embodiments, in the case that the elastic magnetic element 3 is in the original state, the free end and the fixed end are both abutted with the opening end; in the case that the elastic magnetic element 3 is in the elongated state, the fixed end is abutted with the opening end, and the free end has a gap with the opening end. By determining the state of the elastic magnetic element 3, the positional relationship between the fixed end and the free end and the opening end can be determined, and then it can be determined whether the door body 2 of the dishwasher is in the closed state.

[0070] The working process of the door lock detection device is as follows: in the case that the door body 2 of the dishwasher is rotated and opened relative to the dishwasher housing 1, the elastic magnetic element 3 can be elongated under the driving of the driving assembly, and the magnetic field strength of the elastic magnetic element 3 is weakened; the magnetic field detection assembly 4 arranged in the magnetic field region of the elastic magnetic element 3 detects the magnetic field strength or the magnetic field strength variation of the elastic magnetic element 3 in real time, so as to determine the opening angle of the door body 2 of the dishwasher; in the case that the door body 2 of the dishwasher is rotated and closed relative to the dishwasher housing 1, the elastic magnetic element 3 will recover from the elongated state to the original state under the action of the elastic rebound force of the elastic magnetic element 3 and the door body 2 of the dishwasher, the magnetic field strength of the elastic magnetic element 3 is gradually increased, and after the door body 2 of the dishwasher is completely closed, the elastic magnetic element 3 recovers to the original state, the magnetic field strength corresponding to the elastic magnetic element 3 recovers to the maximum, and the magnetic field detection assembly 4 arranged in the magnetic field region of the elastic magnetic element 3 detects the magnetic field strength or the magnetic field strength variation of the elastic magnetic element 3 in real time, so as to determine the rotation angle of the door body 2 of the dishwasher or whether the door body 2 of the dishwasher is closed.

[0071] Embodiment one

[0072] Referring to the accompanying drawings Figure 1The embodiment provides a door lock detection device, which comprises: an elastic magnetic force piece 3 capable of being stretched under external force, a first end of the elastic magnetic force piece 3 being capable of being fixedly connected with a dishwasher, the elastic magnetic force piece 3 having an original state and an elongated state with different magnetic field strengths; a magnetic field detection assembly 4 arranged correspondingly to the elastic magnetic force piece 3, the magnetic field detection assembly 4 being used for detecting the magnetic field strength generated by the elastic magnetic force piece 3; a driving assembly, a first end of the driving assembly being capable of being fixedly connected with a door body 2 of the dishwasher, a second end of the driving assembly being fixedly connected with a second end of the elastic magnetic force piece 3; under the driving of the door body 2 of the dishwasher, the first end of the driving assembly is capable of moving towards a side away from the magnetic field detection assembly 4, and the second end of the driving assembly is capable of driving the elastic magnetic force piece 3 to switch from the original state to the elongated state.

[0073] In the embodiment, the door lock detection device is used for detecting the relative position relationship between the door body 2 of the dishwasher and the dishwasher shell 1, in the case that the door body 2 of the dishwasher and the dishwasher shell 1 are completely abutted, the door body 2 of the dishwasher is completely closed, and the door lock of the dishwasher can be regarded as being in a closed state; in the case that the door body 2 of the dishwasher and the dishwasher shell 1 are not abutted, the door body 2 of the dishwasher is not closed, and the door lock of the dishwasher can be regarded as being in an open state, so that the relative position relationship between the door body 2 of the dishwasher and the dishwasher shell 1 is realized, the state of the door lock of the dishwasher is correspondingly obtained, the microswitch on the door body 2 of the dishwasher is prevented from being blocked by foreign matters, the microswitch is prevented from being always connected, the door lock detection of the dishwasher is prevented from being abnormal, and the accuracy of the door lock detection of the dishwasher is ensured.

[0074] In the embodiment, in the case that the door body 2 of the dishwasher is rotated to be opened relative to the dishwasher shell 1, the elastic magnetic force piece 3 is capable of being elongated under the driving of the driving assembly, the magnetic field strength of the elastic magnetic force piece 3 is weakened; in the case that the door body 2 of the dishwasher is rotated to be closed relative to the dishwasher shell 1, the elastic magnetic force piece 3 is capable of being restored from the elongated state to the original state under the action of the elastic rebound force of the elastic magnetic force piece 3, the magnetic field strength of the elastic magnetic force piece 3 is gradually increased, the elastic magnetic force piece 3 is restored to the original state after the door body 2 of the dishwasher is completely closed, and the magnetic field strength corresponding to the elastic magnetic force piece 3 is restored to the maximum.

[0075] In the embodiment, the elastic rebound force generated by the elastic magnetic force piece 3 can be applied to the door body 2 of the dishwasher, and the weight of the door body 2 of the dishwasher does not need to be borne by the user, so that the use experience of the user is improved.

[0076] In the embodiment, the magnetic field detection assembly 4 obtains the magnetic field variation of the elastic magnetic force piece 3 in the stretching or contraction state, so as to determine the opening angle of the door body 2 of the dishwasher relative to the dishwasher shell 1.

[0077] In the embodiment, the magnetic field strength of the elastic magnetic force piece 3 is the first magnetic field strength when the elastic magnetic force piece 3 is in the original state, and the magnetic field strength of the elastic magnetic force piece 3 is the second magnetic field strength when the elastic magnetic force piece 3 is in the elongated state; the first magnetic field strength is greater than the second magnetic field strength.

[0078] In the embodiment, the magnetic field strength of the elastic magnetic force piece 3 gradually weakens when the elastic magnetic force piece 3 is switched from the original state to the elongated state during the opening of the door body 2 of the dishwasher, and the magnetic field strength of the elastic magnetic force piece 3 is the weakest when the door body 2 of the dishwasher is opened to the maximum angle; the magnetic field strength of the elastic magnetic force piece 3 gradually strengthens when the elastic magnetic force piece 3 is switched from the elongated state to the original state during the rotation of the door body 2 of the dishwasher from opening to closing, and the magnetic field strength of the elastic magnetic force piece 3 is the strongest when the door body 2 of the dishwasher is completely closed.

[0079] In the embodiment, the elastic magnetic force piece 3 is spring steel.

[0080] In the embodiment, the magnetic field detection assembly 4 is located in the magnetic field region generated by the elastic magnetic force piece 3, regardless of whether the elastic magnetic force piece 3 is in the original state or in the elongated state.

[0081] In the embodiment, the elastic magnetic force piece 3 satisfies at least one of the following characteristics: the elastic magnetic force piece 3 is arranged directly below or directly above the magnetic field detection assembly 4; the length of the elastic magnetic force piece 3 is greater than the length of the magnetic field detection assembly 4; and the elastic magnetic force piece 3 is arranged along the width direction of the dishwasher.

[0082] Preferably, the magnetic field detection assembly 4 is arranged directly above the elastic magnetic force piece 3 when the elastic magnetic force piece 3 is in the original state.

[0083] In the embodiment, the magnetic field detection assembly 4 and the elastic magnetic force piece 3 can be fixedly connected with the dishwasher shell 1, and the magnetic field detection assembly 4 is electrically connected with the power supply.

[0084] In the embodiment, the first end of the elastic magnetic force piece 3 is fixedly connected with the dishwasher shell 1, the magnetic field detection assembly 4 is fixedly arranged on the dishwasher shell 1 and electrically connected with the power supply, the magnetic field detection assembly 4 can be a magnetic switch or a Hall sensor, and the elastic magnetic force piece 3 is a trigger source of the magnetic switch or the Hall sensor.

[0085] In the embodiment, the driving assembly includes a pull rope 5 and at least two rollers 6; the first end of the pull rope 5 can be fixedly connected with the door body 2 of the dishwasher, and the second end of the pull rope 5 is fixedly connected with the second end of the elastic magnetic force piece 3 after being sequentially wound around the at least two rollers 6.

[0086] In the embodiment, the pull rope 5 cannot be elongated or contracted under the action of external force, that is, the pull rope 5 cannot be elongated or contracted under the action of the door body 2 of the dishwasher, and the pull rope is only used to elongate the elastic magnetic force piece 3; the rollers 6 are fixedly arranged on the dishwasher shell 1.

[0087] In the embodiment, at least two rollers 6 satisfy at least one of the following features: the axes of the at least two rollers 6 are arranged in a height direction of the dishwasher; the at least two rollers 6 are arranged in a width direction of the dishwasher; wherein the dishwasher has a sealing end and an opening end covered by the door body 2, and the width direction of the dishwasher is from the sealing end to the opening end; one roller 6 of the at least two rollers 6 is arranged close to the sealing end, and the other roller 6 is arranged close to the opening end.

[0088] In the embodiment, the driving assembly includes two rollers 6, and the door body 2 of the dishwasher, the first part of the pull rope 5, the first roller 6, the second part of the pull rope 5, the second roller 6, the third part of the pull rope 5, and the elastic magnetic force piece 3 are sequentially arranged along the force transmission direction; the second part of the pull rope 5 is connected with the two rollers 6 respectively; the third part of the pull rope 5 is connected with the second roller 6 and the elastic magnetic force piece 3 respectively; and the second part of the pull rope 5, the third part of the pull rope 5, and the elastic magnetic force piece 3 are arranged in parallel, so that the change distance of the elastic magnetic force piece 3 can reflect the relative position relationship of the door body 2 of the dishwasher, and the accuracy of detection of the door body 2 of the dishwasher is ensured.

[0089] Specifically, the door body 2 of the dishwasher, the first roller 6, the elastic magnetic force piece 3, and the magnetic field detection assembly 4 are arranged on one side close to the door body 2 of the dishwasher, and the second roller 6 is arranged on the other side of the door body 2 of the dishwasher.

[0090] In the embodiment, along the height direction of the dishwasher, the heights of the first roller 6, the second roller 6, and the elastic magnetic force piece 3 are inconsistent, and the height of the first roller 6 is higher than that of the second roller 6; the third part of the pull rope 5 tangent to the second roller 6 is connected to the middle position of the elastic magnetic force piece 3, so that the elongation direction of the elastic magnetic force piece 3 is parallel to the width direction of the dishwasher under the action of the door body 2 of the dishwasher, and energy waste can be avoided.

[0091] The utility model also protects a kind of dishwasher, including dishwasher shell 1, the door body 2 of dishwasher and above-mentioned door lock detection device;The door body 2 of dishwasher is arranged at the opening end of dishwasher shell 1, and the door body 2 of dishwasher is rotatably connected with opening end;Door lock detection device is arranged on dishwasher shell 1, and door lock detection device is used to obtain the relative position of the door body 2 of dishwasher relative to dishwasher shell 1.

[0092] In the embodiment, the door lock detection device can be arranged above, below, left or right of the dishwasher housing 1, and by optimizing the number and arrangement position of the rollers 6 in the driving assembly, the door lock detection device can be arranged at any position of the dishwasher housing 1, and by optimizing the number and arrangement position of the rollers 6, the extension direction of the elastic magnetic force member 3 can be parallel to the width direction of the dishwasher.

[0093] Preferably, the door lock detection device is arranged below the dishwasher housing 1.

[0094] In the embodiment, the door body 2 of the dishwasher comprises a free end and a fixed end arranged oppositely, the fixed end is rotationally connected with the opening end, and the free end can rotate relative to the fixed end; the door lock detection device is arranged below the dishwasher, and the first end of the driving assembly is arranged close to the free end.

[0095] In the embodiment, in the case that the elastic magnetic force member 3 is in the original state, the free end and the fixed end are both abutted with the opening end; in the case that the elastic magnetic force member 3 is in the elongated state, the fixed end is abutted with the opening end, and the free end has a gap with the opening end.

[0096] 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, practical application or technical improvement in the art of the embodiments, or to enable other ordinary skilled persons in the art to understand the embodiments disclosed herein.

[0097] In the case of no conflict, the above embodiments and features in the embodiments can be combined with each other.

[0098] The above disclosure is only a preferred embodiment of the utility model, of course, cannot limit the scope of the utility model, therefore, the equivalent changes made according to the utility model claims still belong to the scope covered by the utility model.

Claims

1. A door lock detection device provided on a dishwasher, characterized in that, The application relates to a door lock detection device for a dishwasher. The device comprises: an elastic magnetic force piece (3) capable of stretching under external force, a first end of the elastic magnetic force piece (3) being capable of being fixedly connected with the dishwasher, the elastic magnetic force piece (3) having an original state and an elongated state with different magnetic field strengths; a magnetic field detection assembly (4) arranged correspondingly to the elastic magnetic force piece (3), the magnetic field detection assembly (4) being used for detecting the magnetic field strength generated by the elastic magnetic force piece (3); a driving assembly, a first end of the driving assembly being capable of being fixedly connected with a door body (2) of the dishwasher, a second end of the driving assembly being fixedly connected with a second end of the elastic magnetic force piece (3); 2. The door lock detection apparatus according to claim 1, characterized by under the driving of the door body (2) of the dishwasher, the first end of the driving assembly is capable of moving towards a side away from the magnetic field detection assembly (4), and the second end of the driving assembly is capable of driving the elastic magnetic force piece (3) to switch from the original state to the elongated state. When the elastic magnetic force piece (3) is in the original state, the magnetic field strength of the elastic magnetic force piece (3) is a first magnetic field strength; When the elastic magnetic force piece (3) is in the elongated state, the magnetic field strength of the elastic magnetic force piece (3) is a second magnetic field strength; 3. The door lock detection apparatus according to claim 1, characterized by The first magnetic field strength is greater than the second magnetic field strength.

4. The door lock detection apparatus according to claim 1, characterized by The magnetic field detection assembly (4) is arranged in the magnetic field region of the elastic magnetic force piece (3).

5. The door lock detection apparatus according to any one of claims 1 to 4, characterized by The magnetic field detection assembly (4) and the elastic magnetic force piece (3) are both capable of being fixedly connected with a dishwasher shell (1), and the magnetic field detection assembly (4) is electrically connected with a power supply. The driving assembly comprises a pull rope (5) and at least two rollers (6); 6. The door lock detection apparatus according to claim 5, characterized by A first end of the pull rope (5) is capable of being fixedly connected with the door body (2) of the dishwasher, and a second end of the pull rope (5) is fixedly connected with the second end of the elastic magnetic force piece (3) after being sequentially arranged around the at least two rollers (6). The at least two rollers (6) satisfy at least one of the following features: The axes of the at least two rollers (6) are arranged along the height direction of the dishwasher; The at least two rollers (6) are arranged along the width direction of the dishwasher; wherein the dishwasher has a sealing end and an opening end covered by the door body (2) of the dishwasher, and the direction from the sealing end to the opening end is the width direction of the dishwasher; 7. The door lock detection apparatus according to any one of claims 1 to 4, characterized by One of the at least two rollers (6) is arranged close to the sealing end, and the other roller (6) is arranged close to the opening end. The elastic magnetic force piece (3) satisfies at least one of the following features: The elastic magnetic force piece (3) is arranged directly below or directly above the magnetic field detection assembly (4); The length of the elastic magnetic force piece (3) is greater than the length of the magnetic field detection assembly (4); 8. A dishwasher, characterized in that The elastic magnetic force piece (3) is arranged along the width direction of the dishwasher. The device comprises a dishwasher shell (1), a door body (2) of the dishwasher and the door lock detection device according to any one of claims 1-7; The door body (2) of the dishwasher is arranged at the opening end of the dishwasher shell (1), and the door body (2) of the dishwasher is rotationally connected with the opening end. The door lock detection device is arranged on the dishwasher shell (1), and is used to obtain the relative position of the door body (2) of the dishwasher relative to the dishwasher shell (1).

9. The warewash machine of claim 8, wherein, The door body (2) of the dishwasher comprises a free end and a fixed end arranged oppositely; The fixed end is rotationally connected with the opening end, and the free end can rotate relative to the fixed end; The door lock detection device is arranged below the dishwasher, and the first end of the driving assembly is arranged close to the free end. 10.The dish washer of claim 9, wherein In the case that the elastic magnetic force piece (3) is in the original state, the free end and the fixed end are both abutted against the opening end; In the case that the elastic magnetic force piece (3) is in the elongated state, the fixed end is abutted against the opening end, and the free end has a gap with the opening end.

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