Dishwasher

Abstract

The embodiment of the utility model relates to the technical field of kitchen appliances, in particular to a dish washing machine. According to the dish washing machine, the driving component drives the door body to rotate relative to the box body, so that the door body can open and close the washing cavity formed by the box body. The anti-pinch component is arranged between the door body and the box body, the anti-pinch component comprises the piezoresistor and the elastic rubber sleeve wrapping the outer side of the piezoresistor, and when the piezoresistor is pressed, the resistance magnitude order of the piezoresistor is larger than the resistance magnitude order of the piezoresistor when the piezoresistor is not pressed. Thus, in the process that the driving component drives the door body to be closed, when the detection component detects the magnitude order change of the electric signals of the piezoresistor, the driving component is configured to drive the door body to be opened, foreign matter is prevented from being continuously extruded, the anti-pinch function of the door body is achieved, and the dish washing machine is safer and more reliable.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of kitchen appliances, and in particular to a dishwasher. Background Art

[0002] Dishwashers are an electrical appliance for cleaning tableware, cooking utensils, etc., which replaces the tedious labor of manual cleaning, improves cleaning efficiency and cleaning effects, and is becoming more and more widely used.

[0003] In the related art, dishwashers are equipped with an automatic door opening and closing function, which uses a motor drive unit to control the rotation of the motor, thereby driving the door body to rotate relative to the cabinet body to open and close the door.

[0004] However, if there is a foreign object between the door body and the box body during the closing process, it will affect the sealing between the door body and the box body, and may even injure people, resulting in poor safety. Utility Model Content

[0005] An embodiment of the present application provides a dishwasher to solve the technical problem of whether foreign objects are trapped between the door and the cabinet in the related art.

[0006] An embodiment of the present application provides a dishwasher, comprising:

[0007] The box body is structured to form a washing chamber;

[0008] a door body rotatably connected to the box body to open and close the washing chamber;

[0009] a driving component, wherein an output end of the driving component is connected to the door body, and the driving component is configured to drive the door body to rotate relative to the door body;

[0010] an anti-pinch component, mounted on at least one of the door body or the box body;

[0011] When the door body closes the washing chamber, the anti-pinch component is located between the box body and the door body and at the edge of the door body;

[0012] The anti-pinch component includes:

[0013] A varistor, wherein the resistance of the varistor when under pressure is greater than the resistance of the varistor when not under pressure;

[0014] An elastic rubber sleeve, covering the outer side of the varistor;

[0015] a detection component, electrically connected to the piezoresistor and the driving component, respectively, and configured to detect an electrical signal from the piezoresistor;

[0016] During the process of the driving component driving the door body to close, when the magnitude of the electrical signal of the piezoresistor changes, the driving component is configured to drive the door body to open.

[0017] The dishwasher of the embodiment of the present application drives the door body to rotate relative to the housing through a driving component, so that the door body can open and close the washing chamber formed by the housing structure. By providing an anti-pinch component between the door body and the housing, the anti-pinch component includes a piezoresistor and an elastic rubber sleeve covering the outside of the piezoresistor. When the piezoresistor is subjected to pressure, the resistance value thereof is an order of magnitude greater than the resistance value thereof when it is not subjected to pressure. In this way, when the driving component drives the door body to close, when the detection component detects a change in the order of magnitude of the electrical signal of the piezoresistor, the driving component is configured to drive the door body to open, thereby avoiding continuous squeezing of foreign objects, realizing the anti-pinch function of the door body, and making the dishwasher safer and more reliable.

[0018] Compared with the related art, the anti-pinch method judges by collecting the driving motor of the door drive motor, which is more sensitive and reliable and less likely to cause false alarms.

[0019] In some embodiments of the present application, the door body is a rectangular door body;

[0020] The door body has a first side and a second side spaced apart and opposite to each other along a first direction;

[0021] The door body further has a third side, and a side where the door body and the box body are connected is opposite to the third side and spaced apart;

[0022] The anti-pinch component is provided on the first side, the second side and the third side.

[0023] No anti-pinch component is provided on the side where the door body and the box body are rotatably connected, which can save the material cost of the anti-pinch component. In addition, during the closing process, the first, second, and third sides of the door body form relatively large gaps, and the possibility of foreign objects being trapped is relatively high. Therefore, by providing anti-pinch components on the first, second, and third sides of the door body, the integrity and reliability of the anti-pinch detection can be guaranteed.

[0024] In some embodiments of the present application, two anti-pinch components are provided;

[0025] The anti-pinch component includes:

[0026] a first portion, arranged on the first side or the second side according to the shape;

[0027] The second strip portion is connected to the end of the first strip portion, and the second strip portion is arranged on the third side in a conformal manner.

[0028] In some embodiments of the present application, the anti-pinch component includes two connected strips, so that the anti-pinch component is L-shaped. Two anti-pinch components are provided, and the two anti-pinch components have the same structure, which facilitates reducing the production cost of the anti-pinch component.

[0029] In some embodiments of the present application, the box includes:

[0030] A box shell is constructed to form a receiving cavity;

[0031] A box liner is installed in the accommodating cavity, and the box liner structure forms the washing cavity;

[0032] An elastic sealing member is provided on the box liner, and the elastic sealing member is sealed with the door body when the door body closes the washing chamber;

[0033] The anti-pinch component is provided on at least one of the elastic seal and the door body.

[0034] In an embodiment of the present application, an anti-pinch component is provided between the elastic seal and the door body, so that elastic contact is achieved between the anti-pinch component and the elastic seal, which helps to ensure the sealing performance of the washing chamber; moreover, the elastic seal can be elastically deformed when the anti-pinch component is squeezed, thereby reducing the squeezing force received by foreign objects and thus reducing the possibility of pinching.

[0035] In some embodiments of the present application, the elastic sealing member is configured to form a cavity;

[0036] When the door body closes the washing cavity, the cavity faces the cavity wall of the door body and abuts against the elastic rubber sleeve.

[0037] The embodiment of the present application forms a cavity on the elastic seal, and allows the cavity to abut against the elastic rubber sleeve toward the cavity wall of the door body, thereby improving the sealing performance of the abutment between the elastic seal and the elastic rubber sleeve. In addition, when the washing water in the washing chamber is heated, the temperature inside the washing chamber increases, and the air in the cavity expands due to the heat, which increases the abutment force between the cavity wall toward the door body and the elastic rubber sleeve. This helps to improve the sealing performance of the elastic seal and the door body, reduce the possibility of hot air overflowing from the washing chamber, and reduce the possibility of condensation at the seal between the elastic seal and the door body.

[0038] In some embodiments of the present application, a recessed portion is provided on a cavity wall of the cavity facing the door body, and the recessed portion is recessed toward the interior of the cavity;

[0039] When the door body closes the washing chamber, part of the elastic rubber sleeve can be matched and accommodated in the recessed portion.

[0040] The embodiment of the present application is configured in such a way that a larger contact area is formed between the elastic rubber sleeve and the recessed portion, thereby ensuring the reliability of the seal between the elastic silicone sleeve and the elastic sealing component and reducing the possibility of water leakage or condensation at the door body.

[0041] In some embodiments of the present application, the elastic rubber sleeve includes:

[0042] a first connecting portion abutting against a cavity wall of the cavity facing the door body;

[0043] A second connecting portion, fixedly connected to the box body;

[0044] An intermediate connecting portion, the orthographic projection of the intermediate connecting portion toward the vertical plane is located within the orthographic projection of the first connecting portion toward the vertical plane, and is located within the orthographic projection of the second connecting portion toward the vertical plane; wherein the vertical plane is parallel to the door body.

[0045] In an embodiment of the present application, the elastic rubber sleeve is abutted against the cavity wall facing the door body by setting a first connecting part, and is fixedly connected to the box body by setting a second connecting part. The projection of the intermediate connecting part on the first connecting part is located inside the first connecting part, and the projection of the intermediate connecting part on the second connecting part is located inside the second connecting part, so that the size of the intermediate connecting part is smaller, which facilitates the elastic deformation of the first connecting part and the second connecting part toward each other, facilitates the squeezing of the sensitive resistor, and makes the detection of the anti-pinch component more sensitive.

[0046] In some embodiments of the present application, the surface of the first connecting portion facing the cavity is a curved surface.

[0047] Such an arrangement makes the contact surface between the first connecting portion and the cavity wall facing the door body a curved surface, which is beneficial to ensure the reliability of the sealing between the elastic silicone sleeve and the elastic sealing component and reduce the possibility of water leakage or condensation at the door body.

[0048] In some embodiments of the present application, the surface of the second connecting portion facing the box body is a plane.

[0049] Such an arrangement allows the second connecting portion and the box body to have a larger contact surface, making it easier for the anti-pinch component to bear force and helping to ensure the sensitivity of the anti-pinch component's detection.

[0050] In some embodiments of the present application, the elastic rubber sleeve is bonded to the door body or the box body.

[0051] The elastic rubber sleeve is bonded to the door body or the box body, and the bonding connection method is simple and reliable.

[0052] In some embodiments of the present application, the elastic rubber sleeve is clipped onto the door body or the box body.

[0053] The elastic rubber sleeve is clipped onto the door or box body, which not only makes the connection simple but also facilitates disassembly and maintenance.

[0054] In some embodiments of the present application, the driving component includes:

[0055] A driver, wherein an output end of the driver is connected to the door body;

[0056] a control device electrically connected to the driver, the control device being configured to control the driver to drive the door body to rotate relative to the box body;

[0057] The detection component is integrated into the control device.

[0058] Compared with the separate settings of detection components and control devices, the detection components are integrated into the control device, which helps to reduce costs; it can reduce external connections and solder joints, reduce the risk of mechanical failure and poor contact, and help improve the reliability of the entire machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] In order to more clearly illustrate the implementation methods in the embodiments of the present application or related technologies, the following is a brief introduction to the drawings required for use in the embodiments or related technology descriptions. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0060] Figure 1 A schematic structural diagram of a dishwasher provided in some embodiments of the present application;

[0061] Figure 2 A schematic structural diagram of a dishwasher provided in some other embodiments of the present application;

[0062] Figure 3 A schematic diagram of a dishwasher provided in some embodiments of the present application;

[0063] Figure 4 A schematic diagram of a portion of the structure of a dishwasher provided in an embodiment of the present application;

[0064] Figure 5 for Figure 4 Exploded view of the structure;

[0065] Figure 6 A front view of an anti-pinch component provided in some embodiments of the present application;

[0066] Figure 7 A partial structural front view of a dishwasher provided in some embodiments of the present application;

[0067] Figure 8 for Figure 7 AA section view in;

[0068] Figure 9 for Figure 8 Enlarged schematic diagram of the middle P region;

[0069] Figure 10 Schematic diagram of the end face of the elastic rubber sleeve of the anti-pinch component provided in some embodiments of the present application.

[0070] Description of reference numerals:

[0071] 100: cabinet; 101: washing chamber; 110: sink; 120: cabinet frame;

[0072] 200: door body; 201: first side; 202: second side; 203: third side; 204: fourth side; 210: connecting member;

[0073] 310: Spraying device; 320: Water inlet component; 321: Water inlet pipe; 322: Washing pump; 323: Control valve; 330: Drain pipe; 340: Drain pump;

[0074] 400: Anti-pinch component; 410: Elastic rubber sleeve; 411: First connecting portion; 412: Second connecting portion; 413: Middle connecting portion; 420: First strip portion; 430: Second strip portion;

[0075] 500: elastic seal; 501: cavity. DETAILED DESCRIPTION

[0076] In order to make the purpose, implementation mode and advantages of the present application clearer, the exemplary implementation mode of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0077] It should be noted that the brief descriptions of terms in this application are only for the purpose of facilitating the understanding of the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their ordinary and usual meanings.

[0078] In addition, the terms "comprises" and "comprising" and any variations thereof are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to those components expressly listed but may include other components not expressly listed or inherent to such product or device.

[0079] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0080] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0081] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0082] Dishwashers are an electrical appliance for cleaning tableware, cooking utensils, etc., which replaces the tedious labor of manual cleaning, improves cleaning efficiency and cleaning effects, and is becoming more and more widely used.

[0083] As people's quality of life improves, demand for dishwasher functionality is also increasing. In related technologies, dishwashers are equipped with automatic door opening and closing functions. A motor drive unit controls the rotation of the motor, which in turn drives the door relative to the dishwasher body to open and close the door. This allows the dishwasher to automatically open the door after the wash and dry cycles, releasing steam and moisture to naturally dry the dishes; it also closes the door promptly to prevent secondary contamination of the dishes.

[0084] However, during the closing process, the door body and the box body will not actively detect whether there is a foreign object between the two. During the closing process, if there is a foreign object between the door body and the box body, it will affect the sealing between the door body and the box body, and may even cause injury to people, resulting in poor safety.

[0085] In related technologies, the motor drive unit can be used to detect whether a door closing problem exists based on the motor drive current. Typically, a normal drive current range is pre-set. If the motor drive current exceeds this range, the door closing problem is considered abnormal. The motor drive unit then sends an abnormality signal and controls the motor to open the door. However, this method relies on software logic for determination, which has several drawbacks.

[0086] a. During the automatic door closing process of a dishwasher, if a person is trapped, the motor drive unit will first drive the motor to close the door. Anti-pinch protection will only be triggered when the drive current exceeds the normal drive current value range. However, at this point, the person has already been trapped, and only lasting damage can be avoided.

[0087] b. As a dishwasher ages, the motor and transmission mechanism age, increasing the force required to close the door. This increases the motor drive current during closing. If this current exceeds the limit, the anti-pinch protection function will be triggered, preventing the dishwasher from closing and triggering false alarms. This can lead to secondary contamination of the dishes and negatively impact the user experience.

[0088] c. If the maximum endpoint of the preset normal drive current range is too high, the anti-pinch function may be insensitive. If a child's finger is pinched, the drive current may not reach the limit, and the automatic door closing motor will continue to execute the closing command, causing continued personal injury.

[0089] Therefore, the anti-pinch function is achieved by judging the motor drive current value, and the setting requirements for the normal drive current value range are relatively high. When the maximum endpoint value of the normal drive current value range is set to a small value, the anti-pinch function is too sensitive and easily affected by external factors to cause false alarms, affecting the user experience and increasing maintenance work. When the maximum endpoint value of the normal drive current value range is set to a large value, the anti-pinch function is not sensitive. When a small object is pinched, it is difficult to be identified, which can easily cause harm and affect the safety of the user. Moreover, this anti-pinch method will only make a judgment after the human body is pinched, and the response speed is slow.

[0090] In light of this, the dishwasher embodiment of the present application incorporates a piezoresistive rubber strip between the door and the housing. When unpressurized, the piezoresistive rubber strip exhibits a resistance in the kilo-ohm range, while when compressed, it exhibits a resistance in the 10-ohm range. Utilizing this characteristic, the door is configured to open when a foreign object is trapped between the door and the housing, reducing the likelihood of foreign objects becoming trapped and improving dishwasher safety.

[0091] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0092] The present application provides a dishwasher, Figure 1 and Figure 2 The washing machine comprises a housing 100, which is structured to form a washing chamber 101 for accommodating tableware, cooking utensils or articles to be washed.

[0093] In some embodiments, the cabinet 100 may include a cabinet shell, which serves as an outer shell of the dishwasher and is configured to form a receiving cavity.

[0094] In some embodiments, the housing 100 includes a liner, which is disposed within the housing cavity of the housing. The liner forms a washing chamber 101. An installation cavity is formed between the liner and the housing for installing the water inlet and drainage structures of the dishwasher.

[0095] The dishwasher of the embodiment of the present application may include a bowl basket, which is located in the washing chamber 101. The bowl basket is used to hold items to be washed, including tableware, cooking utensils, food, etc.

[0096] Combine Figure 3 In some embodiments, the dishwasher may further include a spray device 310 , which is disposed in the washing cavity 101 and configured to spray washing water into the washing cavity 101 .

[0097] The dishwasher further includes a water inlet component 320 , which is configured to allow water to flow into the spray device 310 .

[0098] In some embodiments, the water inlet component 320 includes a water inlet pipe 321 , one end of which is connected to a water supply source.

[0099] In some embodiments, the water inlet component 320 may include a washing pump 322, the water inlet end of the washing pump 322 is connected to the water inlet pipe 321, and the water outlet end of the washing pump 322 is connected to the spray device 310. The washing pump 322 serves as a power device to drive the water flow from the water inlet pipe 321 into the spray device 310.

[0100] If water continues to flow in during the washing process, it will lead to water waste. In some embodiments, the bottom wall of the washing chamber 101 is provided with a water tank 110, which is used to receive the water after washing. The water in the water tank 110 can also be circulated back to the spray device 310 and reused, which can not only spray and rinse the washed items, but also save water resources.

[0101] Exemplarily, the water inlet component 320 may also include a control valve 323, which has two water inlet ports and one water outlet port, one of which is connected to the water inlet pipe 321, the other is connected to the water tank 110, and the water outlet port is connected to the water inlet end of the washing pump 322.

[0102] In this manner, the wash pump 322 can selectively circulate water from the water tank 110 through the control valve 323 or take in water from the water supply source.

[0103] In some embodiments, the dishwasher may further include a drain pipe 330, which may be in communication with the sink 110. When washing is finished, the water in the sink 110 is drained through the drain pipe 330.

[0104] A drain pump 340 may be installed on the drain pipe 330 to drain the water in the water tank 110 out of the drain pipe 330 .

[0105] The dishwasher according to the embodiment of the present application may include a door 200 rotatably connected to the housing 100 for opening and closing the washing chamber 101 .

[0106] Illustratively, the door 200 is hinged to the housing 100 so that the door 200 can rotate relative to the housing 100 to open or close the washing chamber 101 .

[0107] A sealing structure is provided between the door body 200 and the box liner to improve the sealing performance between the door body 200 and the box liner and reduce the possibility of water leakage at the door body 200.

[0108] In some embodiments, as Figure 1 As shown, the washing chamber 101 opens forward, and the bottom end of the door 200 is rotatably connected to the bottom end of the housing 100 to open or close the washing chamber 101. The directional word "front" here refers to the side of the dishwasher facing the user.

[0109] Continue to refer to Figure 1 In some embodiments, the door body 200 is a rectangular door body 200. The door body 200 has a first side 201 and a second side 202 spaced apart from each other along a first direction.

[0110] The door 200 further has a third side 203 and a fourth side 204. The third side 203 and the fourth side 204 are spaced apart from each other along a second direction. The second direction is perpendicular to the first direction. The fourth side 204 of the door 200 is hingedly connected to the box 100. Thus, the side where the door 200 and the box 100 are connected is opposite to the third side 203 and spaced apart.

[0111] When the door 200 closes the washing chamber 101 , the first direction may be the X-axis direction in the drawing, and the second direction may be the Z-axis direction in the drawing.

[0112] In some embodiments of the present application, the dishwasher may include a driving component, the output end of the driving component is connected to the door body 200, and the driving component is configured to drive the door body 200 to rotate relative to the door body 200, thereby enabling the door body 200 to open the washing chamber 101 or close the washing chamber 101.

[0113] In this way, the door 200 of the dishwasher according to the embodiment of the present application can be opened and closed automatically.

[0114] In some embodiments, the driving component may include a driver, wherein the output end of the driver is connected to the door body 200. The driver is a power device for driving the door body 200 to rotate, and may include a drive motor and a transmission mechanism. The drive motor is connected to the door body 200 through the transmission mechanism to drive the door body 200 to rotate relative to the box body 100.

[0115] In some embodiments, the driving component may include a control device electrically connected to the driver, and the control device is configured to control the driver to drive the door body 200 to rotate relative to the box body 100. The control device may be a microprocessor or the like.

[0116] For example, when the dishwasher finishes drying and enters the storage stage, the main controller of the dishwasher sends a door closing control command to the control device, and then the control device controls the driver to operate. The driver drives the door body 200 to rotate relative to the cabinet 100 to close the door body 200.

[0117] Combine Figure 4 and Figure 5 In some embodiments, the dishwasher may further include an anti-pinch component 400 , which can be used to detect whether there is foreign matter between the door 200 and the cabinet 100 .

[0118] The anti-pinch component 400 is installed on at least one of the door body 200 or the box body 100 .

[0119] Exemplarily, the anti-pinch component 400 is installed on the door body 200 .

[0120] Exemplarily, the anti-pinch component 400 is installed on the box body 100 .

[0121] Exemplarily, anti-pinch components 400 are installed on both the door body 200 and the box body 100 .

[0122] When the door body 200 closes the washing chamber 101, the anti-pinch component 400 is located between the box body 100 and the door body 200, and is located at the edge of the door body 200. This can not only detect whether there are foreign objects between the door body 200 and the box body 100, but also improve the accuracy of the detection.

[0123] In some embodiments of the present application, the anti-pinch component 400 includes: a piezoresistor, and the resistance magnitude of the piezoresistor when under pressure is greater than the resistance magnitude of the piezoresistor when not under pressure.

[0124] For example, when the varistor is not under pressure, the resistance value is on the order of KΩ; when the varistor is squeezed, the resistance value is on the order of 10Ω.

[0125] The anti-pinch component 400 may further include an elastic rubber sleeve 410 which is sleeved on the outside of the varistor.

[0126] Exemplarily, the elastic rubber sleeve 410 may be a rubber sleeve, a silicone sleeve, or the like.

[0127] The elastic rubber sleeve 410 can protect the varistor, and the elastic rubber sleeve 410 can also make the anti-pinch component 400 elastically contact with the door body 200 or the box body 100, which is beneficial to improve the sealing between the door body 200 and the box body 100 and reduce the possibility of water leakage in the washing chamber 101.

[0128] In some embodiments of the present application, the dishwasher may further include a detection component electrically connected to the piezoresistor, and the detection component is configured to detect an electrical signal from the piezoresistor.

[0129] Exemplarily, the piezoresistor is connected to the detection component via a wiring harness. During the door closing process, the detection component detects the electrical signal of the piezoresistor in real time.

[0130] The electrical signal includes a resistance value, a voltage value or a current value. When the anti-pinch component 400 is not subjected to pressure, the magnitude of the electrical signal is different from that when it is not subjected to pressure.

[0131] Taking the electrical signal as the current value as an example, when a foreign object is sandwiched between the door body 200 and the box body 100, the varistor is squeezed, and the order of magnitude of its resistance value changes from the KΩ level to the 10Ω level, and the current value will also change by an order of magnitude.

[0132] In some embodiments of the present application, the detection component is also electrically connected to the driving component. Specifically, the detection component is electrically connected to the control device, so that the driving component can adjust its action in time according to the detection structure of the detection component to avoid continuous closing of the door body 200 and cause continuous pinching.

[0133] In some embodiments, the detection component is integrated into the control device. Compared to separate detection components and control devices, integrating the detection component into the control device helps reduce costs, reduces external connections and solder joints, reduces the risk of mechanical failure and poor contact, and helps improve the reliability of the entire device.

[0134] With the above arrangement, when the driving component drives the door 200 to close, if there is no foreign matter between the door 200 and the housing 100, the door 200 successfully closes the washing chamber 101. At this time, the electrical signal detected by the detection component is the first electrical signal, which is the signal when the piezoresistor is not under pressure.

[0135] During the process of the driving component driving the door body 200 to close, if there is a foreign object between the door body 200 and the box body 100, such as a finger, which is clamped, the finger squeezes the piezoresistor, and the electrical signal of the piezoresistor detected by the detection component changes suddenly, and the order of magnitude of the electrical signal of the piezoresistor changes. The driving component is configured to drive the door body 200 to open, to prevent the door body 200 from continuing to close and injuring the human body, and to avoid damaging the seal between the door body 200 and the box body 100.

[0136] Therefore, the dishwasher of the embodiment of the present application drives the door body 200 to rotate relative to the housing 100 through the driving component, so that the door body 200 can open and close the washing chamber 101 formed by the housing 100. By arranging an anti-pinch component 400 between the door body 200 and the housing 100, the anti-pinch component 400 includes a piezoresistor and an elastic rubber sleeve 410 wrapped around the outside of the piezoresistor. When the piezoresistor is under pressure, the resistance value is greater than the resistance value when the piezoresistor is not under pressure. In this way, when the driving component drives the door body 200 to close, when the detection component detects that the order of magnitude of the electrical signal of the piezoresistor changes, the driving component is configured to drive the door body 200 to open, thereby avoiding continuous squeezing of foreign objects, realizing the anti-pinch function of the door body 200, and making the dishwasher safer and more reliable.

[0137] Compared with the related art, the anti-pinch method is judged by collecting the driving motor of the door body 200, which is more sensitive and reliable and less likely to cause false alarms.

[0138] In some embodiments, the first side 201, the second side 202, the third side 203 and the fourth side 204 of the door body 200 are all provided with anti-pinch components 400, so that anti-pinch detection can be performed at all locations around the washing chamber 101 to ensure the reliability of the anti-pinch detection.

[0139] Combine 1 to Figure 5 In other embodiments, the first side 201 , the second side 202 and the third side 203 of the door body 200 are all provided with anti-pinch components 400 .

[0140] With this arrangement, the anti-pinch component 400 is not provided on the side where the door body 200 is rotatably connected to the box body 100, which can save the material cost of the anti-pinch component 400. Moreover, during the closing process, the first side 201, the second side 202, and the third side 203 of the door body 200 form a relatively large gap, and the possibility of foreign objects being trapped is relatively high. Therefore, by providing the anti-pinch component 400 on the first side 201, the second side 202, and the third side 203 of the door body 200, the integrity and reliability of the anti-pinch detection can be guaranteed.

[0141] Combine Figure 5 In some embodiments, two anti-pinch components 400 are provided, and the two anti-pinch components 400 have the same structure, which facilitates reducing the manufacturing cost of the anti-pinch components 400.

[0142] Combine Figure 6 In some embodiments, the anti-pinch component 400 includes: a first strip portion 420, which is arranged on the first side 201 or the second side 202. One of the first strip portions 420 of the two anti-pinch components 400 is arranged on the first side 201, and the other first strip portion 420 of the two anti-pinch components 400 is arranged on the second side 202. The first strip portion 420 is arranged along the second direction (corresponding to Figure 6 Z-axis direction).

[0143] In some embodiments, the anti-pinch component 400 includes a second strip portion 430 . The second strip portion 430 is connected to an end of the first strip portion 420 , and the second strip portion 430 is conformally disposed on a portion of the third side 203 .

[0144] The second strips 430 of the two anti-pinch components 400 are symmetrically arranged on the third side 203. The second strips 430 are arranged along the first direction (corresponding to Figure 6 X-axis direction).

[0145] In some embodiments, the opening of the washing chamber 101 is rectangular with rounded corners. To this end, the first strip 420 and the second strip 430 are connected by an arcuate strip, which connects tangentially to the first strip 420 and the second strip 430. This allows the anti-pinch component 400 to conform to the shape of the washing chamber 101 opening, ensuring the reliability of anti-pinch detection. It also allows the anti-pinch component 400 to smoothly transition at corners, reducing stress and extending its service life.

[0146] In some embodiments, combined Figure 5 An elastic seal 500 is provided on the box liner, and the elastic seal 500 is sealed with the door body 200 when the door body 200 closes the washing chamber 101.

[0147] like Figure 5As shown, the tank shell includes a tank frame 120, and the tank frame 120 is located at the edge of the washing port.

[0148] A connector 210 is provided at the edge of the box opening, and the connector 210 is used to install the elastic sealing member 500 .

[0149] At least one of the elastic seal 500 and the door body 200 is provided with an anti-pinch component 400. For example, the elastic seal 500 is provided with an anti-pinch component 400; for another example, the door body 200 is provided with an anti-pinch component 400; for another example, both the elastic seal 500 and the door body 200 are provided with an anti-pinch component 400.

[0150] In an embodiment of the present application, an anti-pinch component 400 is provided between the elastic seal 500 and the door body 200, so that elastic contact is achieved between the anti-pinch component 400 and the elastic seal 500, thereby ensuring the sealing performance of the washing chamber 101; moreover, the elastic seal 500 can be elastically deformed when the anti-pinch component 400 is squeezed, thereby reducing the squeezing force received by foreign matter and thus reducing the possibility of pinching.

[0151] Combine Figures 7 to 9 In some embodiments, the elastic seal 500 is configured to form a cavity 501 .

[0152] When the door body 200 closes the washing chamber 101 , the cavity 501 facing the cavity wall of the door body 200 abuts against the elastic rubber sleeve 410 .

[0153] The embodiment of the present application forms a cavity 501 on the elastic seal 500, and makes the cavity 501 facing the cavity wall of the door body 200 abut against the elastic rubber sleeve 410, thereby improving the sealing performance of the abutment between the elastic seal 500 and the elastic rubber sleeve 410. In addition, when the washing water in the washing chamber 101 is heated, the temperature inside the washing chamber 101 increases, and the air in the cavity 501 expands due to the heat, which increases the abutment force between the cavity 501 facing the cavity wall of the door body 200 and the elastic rubber sleeve 410, thereby improving the sealing performance of the elastic seal 500 and the door body 200, reducing the possibility of hot air overflowing from the washing chamber 101, and reducing the possibility of condensation at the sealing point between the elastic seal 500 and the door body 200.

[0154] In some embodiments, a recessed portion is provided on the cavity wall of the cavity 501 facing the door body 200 , and the recessed portion is recessed toward the inside of the cavity 501 .

[0155] When the door body 200 closes the washing chamber 101 , part of the elastic rubber sleeve 410 can be matched and accommodated in the recessed portion.

[0156] Such a configuration forms a larger contact area between the elastic rubber sleeve 410 and the recessed portion, thereby ensuring the reliability of the seal between the elastic silicone sleeve and the elastic seal 500 and reducing the possibility of water leakage or condensation at the door body 200.

[0157] Combine Figure 10 In some embodiments, the elastic rubber sleeve 410 includes: a first connecting portion 411 , the first connecting portion 411 abuts against the cavity wall of the cavity 501 facing the door body 200 .

[0158] The elastic rubber sleeve 410 may include a second connection portion 412, and the second connection portion 412 is fixedly connected to the box body 100. The second connection portion 412 and the box body 100 may be fixedly connected in a manner including, but not limited to, snap connection, bonding, and the like.

[0159] The elastic rubber sleeve 410 may include an intermediate connecting portion 413, which connects the first connecting portion 411 and the second connecting portion 412. For example, the first connecting portion 411, the second connecting portion 412 and the intermediate connecting portion 413 are integrally formed as a single piece, and the structure is stable and reliable.

[0160] In some embodiments, the orthographic projection of the middle connecting portion 413 onto the vertical plane is located within the orthographic projection of the first connecting portion 411 onto the vertical plane, and is located within the orthographic projection of the second connecting portion 412 onto the vertical plane.

[0161] The vertical plane is parallel to the door body 200. Figure 1 , the vertical plane is the XZ plane.

[0162] The size of the middle connection part 413 is relatively small, and the sensitive resistor can be arranged in the first connection part 411 or the second connection part 412 with a larger size, so that there is sufficient space for arranging the sensitive resistor.

[0163] In this way, the size of the middle connection part 413 is made smaller, which facilitates the elastic deformation of the first connection part 411 and the second connection part 412 toward each other, facilitates squeezing the sensitive resistor, and makes the detection of the anti-pinch component 400 more sensitive.

[0164] Combine Figure 9 and Figure 10 The surface of the first connecting portion 411 facing the cavity 501 is a curved surface. This arrangement allows the contact surface between the first connecting portion 411 and the cavity 501 wall facing the door body 200 to be a curved surface, which helps ensure the reliability of the seal between the elastic silicone sleeve and the elastic sealing member 500 and reduces the possibility of water leakage or condensation at the door body 200.

[0165] The surface of the second connection portion 412 facing the box body 100 is a plane. This configuration allows the second connection portion 412 to have a larger contact surface with the box body 100, making it easier for the anti-pinch component 400 to bear force and ensuring the sensitivity of the anti-pinch component 400 detection.

[0166] For example, the cross-section of the first connection portion 411 may be circular.

[0167] For example, the cross-section of the second connection portion 412 may be rectangular.

[0168] In some embodiments of the present application, the elastic rubber sleeve 410 is bonded to the door body 200 or the box body 100, and the bonding connection method is simple and reliable.

[0169] In some embodiments of the present application, the elastic rubber sleeve 410 is snapped onto the door body 200 or the box body 100, which not only simplifies the connection method but also facilitates disassembly and maintenance.

[0170] In some embodiments of the present application, the dishwasher may further include an infrared detection device, which is configured to detect whether there is a human body around the dishwasher to determine whether to perform an automatic door closing action.

[0171] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

[0172] For ease of explanation, the above description has been made with reference to specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations are possible. The above embodiments are selected and described to better explain the principles and practical applications, so that those skilled in the art can better utilize the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A dishwasher, characterized in that: The dishwasher comprises: A box body (100) is structured to form a washing chamber (101); A door (200) rotatably connected to the housing (100) to open and close the washing chamber (101); a driving component, wherein an output end of the driving component is connected to the door body (200), and the driving component is configured to drive the door body (200) to rotate relative to the door body (200); an anti-pinch component (400) mounted on at least one of the door body (200) or the box body (100); When the door (200) closes the washing chamber (101), the anti-pinch component (400) is located between the box (100) and the door (200), and is located at the edge of the door (200); The anti-pinch component (400) comprises: A varistor, wherein the resistance of the varistor when under pressure is greater than the resistance of the varistor when not under pressure; An elastic rubber sleeve (410) covering the outer side of the varistor; a detection component, electrically connected to the piezoresistor and the driving component, respectively, and configured to detect an electrical signal from the piezoresistor; During the process of the driving component driving the door body (200) to close, when the magnitude of the electrical signal of the piezoresistor changes, the driving component is configured to drive the door body (200) to open.

2. The dishwasher according to claim 1, characterized in that The door body (200) is a rectangular door body (200); The door body (200) has a first side (201) and a second side (202) spaced apart from each other along a first direction; The door body (200) further has a third side (203), and a side where the door body (200) and the box body (100) are connected is opposite to the third side (203) and spaced apart. The first side (201), the second side (202) and the third side (203) are all provided with the anti-pinch component (400).

3. The dishwasher according to claim 2, characterized in that The anti-pinch components (400) are provided with two; The anti-pinch component (400) comprises: A first portion (420) is disposed on the first side (201) or the second side (202); The second strip portion (430) is connected to the end of the first strip portion (420), and the second strip portion (430) is arranged on a portion of the third side (203).

4. The dishwasher according to any one of claims 1 to 3, characterized in that: The box (100) comprises: A box shell is constructed to form a receiving cavity; A box liner is installed in the accommodating cavity, and the box liner structure forms the washing cavity (101); An elastic sealing member (500) is provided on the box liner, and the elastic sealing member (500) is sealed with the door body (200) when the door body (200) closes the washing chamber (101); The anti-pinch component (400) is provided on at least one of the elastic sealing component (500) and the door body (200).

5. The dishwasher according to claim 4, characterized in that The elastic sealing member (500) is configured to form a cavity (501); When the door body (200) closes the washing chamber (101), the cavity (501) faces the cavity wall of the door body (200) and abuts against the elastic rubber sleeve (410).

6. The dishwasher according to claim 5, characterized in that The cavity (501) is provided with a recessed portion on a cavity wall facing the door body (200), and the recessed portion is recessed toward the inside of the cavity (501); When the door (200) closes the washing chamber (101), a portion of the elastic rubber sleeve (410) can be matched and accommodated in the recessed portion.

7. The dishwasher according to claim 5 or 6, characterized in that The elastic rubber sleeve (410) comprises: A first connecting portion (411) abuts against a cavity wall of the cavity (501) facing the door body (200); A second connecting portion (412) is fixedly connected to the box (100); An intermediate connecting portion (413), the intermediate connecting portion (413) connecting the first connecting portion (411) and the second connecting portion (412); the orthographic projection of the intermediate connecting portion (413) toward the vertical plane is located within the orthographic projection of the first connecting portion (411) toward the vertical plane, and is located within the orthographic projection of the second connecting portion (412) toward the vertical plane; wherein the vertical plane is parallel to the door body.

8. The dishwasher according to claim 7, characterized in that The surface of the first connecting portion (411) facing the cavity (501) is a curved surface; The surface of the second connecting portion (412) facing the box (100) is a plane.

9. The dishwasher according to any one of claims 1 to 3, characterized in that: The elastic rubber sleeve (410) is bonded to the door body (200) or the box body (100); or, the elastic rubber sleeve (410) is snap-connected to the door body (200) or the box body (100).

10. The dishwasher according to any one of claims 1 to 3, characterized in that: The driving component includes: A driver, wherein an output end of the driver is connected to the door body (200); a control device electrically connected to the driver, the control device being configured to control the driver to drive the door body (200) to rotate relative to the box body (100); The detection component is integrated into the control device.

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