Dishwasher

Abstract

This application discloses a dishwasher. The dishwasher includes a cabinet, a control module, and a door lock device. The cabinet has a door rotatably connected to it. The door lock device includes a latch, a housing, and a push rod, a claw arm, and a drive assembly housed within the housing. One end of the push rod has a claw arm that engages with the latch, and the drive assembly is driven by the push rod. One of the housing and the latch is located on the cabinet, and the other is located on the door. The drive assembly drives the push rod to switch between a retracted position and an extended position. The door lock device also includes a push rod position detection component, a latch status detection component, and a door status detection component. This application aims to improve the accuracy of door status detection in dishwashers with automatic door opening and closing, and to enable the control module to accurately control the dishwasher's operation based on the door status, thereby minimizing the adverse effects of abnormal situations on dishwasher use and improving the user experience.

Description

Technical Field

[0001] This application relates to the technical field of dishwashers, and more particularly to a dishwasher. Background Technology

[0002] During operation, a dishwasher with an automatic door opening and closing function will automatically close the door to perform the washing operation and automatically open the door to perform the drying operation.

[0003] In practice, if the dishwasher door opens unexpectedly or is opened by the user during the washing process, but the dishwasher does not stop washing, the washing water will be sprayed directly out of the cabinet. Alternatively, if the cabinet door is not completely closed or tightly shut for an extended period after the drying cycle, dust, other impurities, or organisms in the environment can contaminate the inside of the cabinet. These abnormal situations negatively impact the use of the dishwasher. Utility Model Content

[0004] The main objective of this application is to provide a dishwasher that improves the accuracy of door status detection in dishwashers with automatic door opening and closing, and enables the control module to accurately control the operation of the dishwasher based on the door status, so as to minimize the adverse effects of abnormal situations on the use of the dishwasher, thereby improving the user's experience of using the dishwasher.

[0005] To achieve the above objectives, this application proposes a dishwasher, the dishwasher comprising:

[0006] A cabinet, wherein the cabinet is provided with a cabinet door that is rotatably connected to the cabinet;

[0007] Control module;

[0008] A door lock device includes a latch, a housing, and a push rod, a claw arm, and a drive assembly disposed within the housing. One end of the push rod is provided with a claw arm that engages with the latch, and the drive assembly is drivenly connected to the push rod.

[0009] One of the housing and the latch is disposed on the cabinet body, and the other is disposed on the cabinet door. The drive assembly is used to drive the push rod to switch between a retracted position and an extended position. When the push rod is in the retracted position and the latch is engaged with the arm claw, the cabinet door is in the closed state. When the push rod is in the extended position or the latch is disengaged from the arm claw, the cabinet door is in the open state.

[0010] The door lock device further includes a push rod position detection component, a latch status detection component, and a cabinet door status detection component; the push rod position detection component is used to detect the position of the push rod and output a corresponding push rod position detection signal; the latch status detection component is used to detect the connection status between the latch and the arm claw and output a corresponding latch status detection signal; the cabinet door status detection component is used to detect the opening and closing status between the cabinet door and the cabinet body and output a corresponding opening and closing status detection signal.

[0011] The control module is used to determine the state of the cabinet door based on at least one of the push rod position detection signal, the latch state detection signal, and the door opening / closing state detection signal.

[0012] Optionally, the push rod position detection signal includes: a push rod extension signal and a push rod retraction signal; the push rod is provided with a first limiting block;

[0013] When the push rod is in the retracted position, the first limiting block presses the push rod position detection component to cause it to output the push rod retraction signal;

[0014] When the push rod is in the extended position, the first limiting block releases the pressure on the push rod position detection component to cause it to output the push rod extension signal.

[0015] Optionally, the latch status detection signal includes a latch engagement signal and a latch disengagement signal;

[0016] The latch status detection component is used to output the latch engagement signal when the latch is engaged with the arm claw;

[0017] The latch status detection component is also used to output a latch release signal when the latch disengages from the arm claw.

[0018] Optionally, the door lock device further includes a slider assembly, which is movably switchable between a first position and a second position on the push rod;

[0019] When the latch is engaged with the arm claw, the slider assembly is in the first position, and the slider assembly presses the latch state detection assembly to make it output the latch engagement signal;

[0020] When the latch disengages from the arm claw, the slider assembly is in the second position, and the slider assembly releases the pressure on the latch status detection assembly to cause it to output the latch release signal.

[0021] Optionally, the slider assembly includes a first elastic element connected to the push rod, an intermediate slider connected to the first elastic element, and a trigger slider connected to the intermediate slider; the intermediate slider is movable between a third position and a fourth position, and the trigger slider is movable between a fifth position and a sixth position; the first elastic element causes the intermediate slider to tend to move from the third position to the fourth position;

[0022] When the latch is engaged with the arm claw, the latch presses the intermediate slider and compresses the first elastic element. The intermediate slider is in the third position to drive the trigger slider to move to the fifth position. The trigger slider presses the latch state detection component to make it output the latch engagement signal.

[0023] When the latch disengages from the arm claw, the first elastic element drives the intermediate slider back to the fourth position, causing it to move the trigger slider to the sixth position. The trigger slider then releases pressure on the latch status detection component, causing it to output the latch release signal.

[0024] Optionally, the trigger slider includes a first limiting shaft disposed in the first guide hole of the intermediate slider, wherein the straight line extending from the first guide hole is perpendicular to the push rod;

[0025] When the latch is engaged with the arm claw, the trigger slider moves to the fifth position within the first guide hole via the first limiting shaft;

[0026] When the latch disengages from the arm claw, the trigger slider moves to the sixth position within the first guide hole via the first limiting shaft.

[0027] Optionally, the trigger slider further includes a second guide hole, and the push rod is further provided with a second limiting shaft in the second guide hole. The extension direction of the second guide hole intersects with the push rod and the included angle formed is an acute angle with the opening facing the claw.

[0028] During the process of the trigger slider being movable between the fifth position and the sixth position, the second limiting shaft moves and switches accordingly within the second guide hole.

[0029] Optionally, the door opening / closing status detection signal includes a cabinet door opening signal and a cabinet door closing signal; the door lock device further includes a slider assembly, a lever, and a second elastic element; the slider assembly is movably and switchably disposed on the push rod; the lever is rotatably switchable between a ninth position and a tenth position, and the first end of the lever is connected to the second elastic element, the second elastic element causing the first end of the lever to have a tendency to press the cabinet door status detection assembly;

[0030] When the push rod is in the extended position or the latch is disengaged from the arm claw, the slider assembly drives the lever to the ninth position, and the first end of the lever presses the cabinet door status detection assembly to output the cabinet door opening signal;

[0031] When the push rod is in the retracted position and the latch is engaged with the arm claw, the slider assembly drives the lever to the tenth position. The first end of the lever compresses the second elastic element to release the pressure on the cabinet door status detection assembly so that it outputs the cabinet door closing signal.

[0032] Optionally, the slider assembly includes a first elastic element connected to the push rod, an intermediate slider connected to the first elastic element, and a trigger slider connected to the intermediate slider, wherein the intermediate slider is provided with a notch;

[0033] When the push rod is in the retracted position and the latch is engaged with the arm claw, the latch presses the middle slider and compresses the first elastic element, so that the lever engages with the notch of the middle slider, and the lever rotates to separate from the cabinet door status detection component so that it outputs the cabinet door closing signal.

[0034] Optionally, the push rod position detection component includes a first micro switch; and / or, the latch status detection component includes a second micro switch; and / or, the cabinet door status detection component includes a third micro switch.

[0035] Optionally, the control module is further configured to determine whether the cabinet door is in an open or closed state based on the door opening / closing status detection signal.

[0036] Optionally, the control module is further configured to determine the state of the dishwasher based on at least one of the push rod position detection signal, the latch state detection signal, and the door open / close state detection signal.

[0037] Optionally, the dishwasher states include: a first state, a second state, and a third state;

[0038] The first state includes the push rod being in the retracted position and the latch being disengaged from the arm claw;

[0039] The second state includes the push rod being in the extended position and the latch being engaged with the arm claw;

[0040] The third state includes the push rod being in the extended position and the latch being disengaged from the arm claw.

[0041] Optionally, the housing also includes a circuit board, on which both the latch status detection component and the push rod position detection component are mounted.

[0042] Optionally, the dishwasher further includes a first power supply module and a second power supply module; the output terminal of the first power supply module is electrically connected to the power supply terminal of the push rod position detection component and the power supply terminal of the latch status detection component, respectively, and the output terminal of the second power supply module is electrically connected to the power supply terminal of the cabinet door status detection component.

[0043] The first power supply module is used to output a first voltage through its own output terminal, and the second power supply module is used to output a second voltage through its own output terminal.

[0044] In summary, this application proposes a dishwasher, comprising: a cabinet, a control module, and a door lock device. The cabinet has a door rotatably connected to it. The door lock device includes a latch, a housing, and a push rod, a claw arm, and a drive assembly housed within the housing. One end of the push rod has a claw arm that engages with the latch, and the drive assembly is driven by the push rod. One of the housing and the latch is located on the cabinet, and the other is located on the door. The drive assembly drives the push rod to switch between a retracted position and an extended position. When the push rod is in the retracted position and the latch is engaged with the claw arm, the door is closed. When the push rod is in the extended position or the latch is disengaged from the claw arm, the door is open. The door lock device further includes a push rod position detection component, a latch status detection component, and a cabinet door status detection component. The push rod position detection component detects the position of the push rod and outputs a corresponding push rod position detection signal. The latch status detection component detects the connection status between the latch and the arm claw and outputs a corresponding latch status detection signal. The cabinet door status detection component detects the opening and closing status between the cabinet door and the cabinet body and outputs a corresponding opening and closing status detection signal. The control module determines the status of the cabinet door based on at least one of the push rod position detection signal, the latch status detection signal, and the opening and closing status detection signal.

[0045] Through the above-described configuration, the dishwasher of this application can determine the cabinet door status based on the detection of the latch, the push rod position, and the cabinet door open / closed state. This effectively ensures the accuracy and reliability of the control module's identification and judgment of the cabinet door status, enabling the control module to accurately control the dishwasher's operation based on the cabinet door status. Furthermore, in abnormal situations, the control module can promptly execute corresponding protective actions based on accurate detection of the current cabinet door status, minimizing the adverse effects of abnormal situations on dishwasher use and thus improving the user experience.

[0046] Furthermore, since the control module can simultaneously determine the latch status, push rod position, and cabinet door open / closed status based on the aforementioned three detection components, it can also monitor the dishwasher's operating conditions or identify user needs based on multiple cabinet door states or state transitions. This allows for adaptive control, achieving precise closed-loop control of the dishwasher's operation, ensuring its reliability and stability, and improving the user experience. Attached Figure Description

[0047] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0048] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0049] Figure 1 This is a schematic diagram of a circuit module of a dishwasher according to an embodiment of this application;

[0050] Figure 2 This is a schematic diagram of the dishwasher in a second state in another embodiment of the dishwasher of this application;

[0051] Figure 3 This is a schematic diagram of the dishwasher in a third state in yet another embodiment of the dishwasher of this application;

[0052] Figure 4 This is a schematic diagram of the dishwasher in a first state in another embodiment of the dishwasher of this application;

[0053] Figure 5 This is a schematic diagram showing the cabinet door in a closed state in another embodiment of the dishwasher of this application;

[0054] Figure 6 For this application dishwasher Figure 2 The illustrated embodiment shows a schematic diagram of the internal structure of the door lock device housing when the dishwasher is in the second state.

[0055] Figure 7 For this application dishwasher Figure 4 The illustrated embodiment shows a schematic diagram of the internal structure of the door lock device housing when the dishwasher is in its first state.

[0056] Figure 8 This is a schematic diagram of a circuit module for another embodiment of the dishwasher of this application;

[0057] Figure 9This is a detailed circuit diagram of an embodiment of the dishwasher of this application.

[0058] Attached icon number

[0059]

[0060] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0061] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0062] To better understand the technical solutions of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0063] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the attached figures). If the specific posture changes, the directional indicators will also change accordingly. It should be understood that although the steps in the flowcharts of the embodiments of this application are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders.

[0064] During operation, a dishwasher with an automatic door opening and closing function will automatically close the door to perform the washing operation and automatically open the door to perform the drying operation.

[0065] In practice, if the dishwasher door opens unexpectedly or is opened by the user during the washing process, but the dishwasher does not stop washing, the washing water will be sprayed directly out of the cabinet. Alternatively, if the door is not completely closed or tightly shut for an extended period after the drying cycle, dust, other impurities, or organisms in the environment can contaminate the inside of the cabinet. These abnormal situations lead to a poor user experience.

[0066] It's important to understand that, taking a dishwasher as an example, the dishwasher door should theoretically remain closed during the washing process. If the user accidentally opens the door, or if the door opens automatically due to other unforeseen circumstances, such as a malfunction in the automatic door opening / closing mechanism causing the door to open, the dishwasher should, theoretically, immediately stop spraying water from the washing components inside the cabinet to prevent water from spraying directly out of the cabinet. However, in reality, if the dishwasher's door status detection is inaccurate or untimely, or if the door opening / closing detection device itself malfunctions, the dishwasher may misjudge its own door status. Consequently, in the event of an unexpected door opening during the washing process, the dishwasher may fail to promptly stop spraying water based on an accurate door status.

[0067] Therefore, this application proposes a dishwasher, with reference to Figure 1 , Figure 6 and Figure 7 In one embodiment of this application, the dishwasher includes:

[0068] Cabinet 50, and cabinet door 60 is provided on cabinet 50 and is rotatably connected to cabinet 50;

[0069] Control module 10;

[0070] The door lock device 00 includes a latch 04, a housing 01, a push rod 02, a claw 03 and a drive assembly disposed in the housing 01. One end of the push rod 02 is provided with a claw 03 that cooperates with the latch 04, and the drive assembly is drivenly connected to the push rod 02.

[0071] One of the housing 01 and the latch 04 is disposed on the cabinet 50, and the other is disposed on the cabinet door 60. The drive assembly is used to drive the push rod 02 to switch between the retracted position and the extended position. When the push rod 02 is in the retracted position and the latch 04 is engaged with the arm claw 03, the cabinet door 60 is in the closed state. When the push rod 02 is in the extended position or the latch 04 is disengaged from the arm claw 03, the cabinet door 60 is in the open state.

[0072] The door lock device 00 also includes a push rod position detection component 20, a latch status detection component 30, and a cabinet door status detection component 40; the push rod position detection component 20 is used to detect the position of the push rod 02 and output the corresponding push rod position detection signal; the latch status detection component 30 is used to detect the connection status between the latch 04 and the arm claw 03 and output the corresponding latch status detection signal; the cabinet door status detection component 40 is used to detect the opening and closing status between the cabinet door 60 and the cabinet body 50 and output the corresponding opening and closing status detection signal.

[0073] Control module 10 is used to determine the state of cabinet door 60 based on at least one of push rod position detection signal, latch state detection signal and door open / close state detection signal.

[0074] In this embodiment, the cabinet 50 has a cavity for placing tableware such as bowls and plates, and related components for performing washing and / or drying operations can also be installed in the cavity. The cabinet door 60 and the cabinet 50 can be connected by hinges, linkages, or other means to achieve a rotatable connection between the cabinet door 60 and the cabinet 50.

[0075] The door lock device 00 has a housing 01 and a latch 04, one of which is located on the cabinet door 60 and the other on the cabinet body 50. For example, the latch 04 is located on the cabinet door 60, and the housing 01 of the door lock device 00 is located on the cabinet body 50. A claw 03 is used to engage the latch 04. To ensure that the claw 03 can more firmly engage the latch 04 when the cabinet door 60 is closed, a limiting component, such as a limiting spring, is provided inside the housing 01 corresponding to the position of the claw 03 when the push rod 02 is in the retracted position, to improve the biting force of the claw 03 on the latch 04. Optionally, in one embodiment, the drive assembly inside the housing 01 includes a motor, which can directly drive the push rod 02 to move. For example, the drive assembly includes a stepper motor, which drives the push rod 02 to move. Optionally, in another embodiment, the drive assembly inside the housing 01 includes a motor and a drive component that cooperates with the motor. The motor drives the drive component to move, and the moving drive component then drives the push rod 02 to move. For example, see reference... Figure 6 and Figure 7 As shown, the drive assembly includes a motor and multiple gears. A rack is mounted on the push rod 02. The motor's rotation drives the multiple meshing gears to rotate. One gear meshes with the rack on the push rod 02, thus enabling the motor to drive the gear set to rotate, which in turn drives the push rod 02. The control module 10 can control the drive assembly to switch the push rod 02 between the extended and retracted positions. When the push rod 02 is in the retracted position, it retracts into the housing 01 to its limit. At this time, if the latch 04 engages with the arm pawl 03, refer to... Figure 5 With the cabinet door 60 closed, the control module 10 can control the dishwasher cabinet 50 to perform corresponding actions, such as washing. When the push rod 02 is in the extended position, the control module 10 will control the drive assembly to extend the push rod 02 into the housing 01. If the latch 04 engages with the arm pawl 03 at this time, refer to... Figure 2 At this time, the control module 10 can control the drive component to move accordingly to control the push rod 02. The push rod 02 drives the claw 03 to extend, thereby making the cabinet door 60 open.

[0076] Optionally, in one embodiment, the push rod position detection component 20 can accurately detect the extension distance of the push rod 02. For example, the push rod position detection component 20 is implemented using a distance detection component, such as an optical ranging component or an ultrasonic ranging component. Researchers can preset the position of the distance detection component on the push rod 02 so that it detects a reference position within the housing 01 to obtain the distance between itself and the reference position, and output a push rod position detection signal representing the distance. After receiving the push rod position detection signal, the control module 10 can determine the distance represented by the push rod position detection signal and substitute it into a preset mapping table or transfer function corresponding to the position of the distance detection component on the push rod 02 and the reference position, to finally determine the extension distance of the push rod 02. The control module 10 can determine whether the push rod 02 is in the retracted position or the extended position based on the distance the push rod 02 extends. For example, if the distance the push rod 02 extends from the housing 01 is less than or equal to a preset distance (e.g., 0 cm), the push rod 02 is determined to be in the retracted position. If the distance the push rod 02 extends from the housing 01 is greater than the preset distance, the push rod 02 is determined to be in the extended position.

[0077] Optionally, in another embodiment, the push rod position detection component 20 may also detect only whether the push rod 02 is in the retracted or extended position. The push rod position detection signal includes: a push rod extension signal and a push rod retraction signal; the push rod position detection component 20 is used to output a push rod retraction signal when the push rod 02 is in the retracted position; the push rod position detection component 20 is also used to output a push rod extension signal when the push rod 02 is in the extended position. In this embodiment, the push rod extension signal and the push rod retraction signal can be two signals of different levels, for example, one is a high-level signal and the other is a low-level signal. The push rod position detection component 20 can be implemented using trigger components such as microswitches, buttons, and dome switches, and their corresponding peripheral circuits. When the push rod 02 is in the retracted position, the structure in the push rod 02 can trigger the push rod position detection component 20 to output a push rod retraction signal; when the push rod 02 is in the retracted position, the structure in the push rod 02 can trigger the push rod position detection component 20 to output a push rod extension signal. For example, refer to... Figure 9 The push rod position detection component 20 includes a first micro switch SW1 and a first resistor R1. When the push rod 02 is in the retracted position, pressing the first micro switch SW1 will cause the control module 10 to receive a push rod retraction signal with a low level signal. When the push rod 02 is in the extended position, without pressing the first micro switch SW1, the control module 10 will receive a push rod extension signal with a high level signal.

[0078] Optionally, in one embodiment, the latch status detection signal includes a latch engagement signal and a latch disengagement signal; the latch status detection component 30 is used to output a latch engagement signal when the latch 04 is engaged with the arm claw 03; the latch status detection component 30 is also used to output a latch disengagement signal when the latch 04 is disengaged from the arm claw 03. In this embodiment, the latch engagement signal and the latch disengagement signal can be two signals of different levels, for example, one is a high-level signal and the other is a low-level signal. The latch status detection component 30 can be implemented using triggering components such as microswitches, buttons, dome switches, magnetic components, and magnetic detection components, and their corresponding peripheral circuits. For example, the latch status detection component 30 including a second microswitch is described as an example, referring to the above embodiment. Figure 9 The circuit principle is shown below. When latch 04 engages with arm gripper 03, latch 04 can press the second micro switch to cause control module 10 to receive a low-level latch engagement signal. When latch 04 disengages from arm gripper 03, latch 04 can disengage without pressing the second micro switch to cause control module 10 to receive a high-level latch release signal.

[0079] Optionally, in one embodiment, the door opening / closing status detection signal includes a cabinet door opening signal and a cabinet door closing signal; the cabinet door status detection component 40 is used to output a cabinet door opening signal when the cabinet door 60 is in the open state; the cabinet door status detection component 40 is also used to output a cabinet door closing signal when the cabinet door 60 is in the closed state. In this embodiment, the cabinet door opening signal and the cabinet door closing signal can be two signals with different levels, for example, one is a high-level signal and the other is a low-level signal. The cabinet door status detection component 40 can be implemented using triggering components such as microswitches, buttons, dome switches, magnetic components, and magnetic detection components, and their corresponding peripheral circuits. For example, the cabinet door status detection component 40 including a third microswitch is described as an example, referring to the above embodiment. Figure 9 The circuit principle is shown. The door lock device 00 may include a structural component that operates based on the open / closed state of the cabinet door 60. When the cabinet door 60 is closed, the structural component will press the third microswitch, causing the control module 10 to receive a low-level cabinet door closed signal. When the cabinet door 60 is open, the structural component will not press the third microswitch, causing the control module 10 to receive a high-level cabinet door open signal. Furthermore, in one embodiment, refer to... Figure 6 and Figure 7In the case where the push rod position detection component 20 includes a first micro switch, the latch status detection component 30 includes a second micro switch, and the cabinet door status detection component 40 includes a third micro switch, the contact spacing and travel of the third micro switch are both greater than those of the first micro switch and the second micro switch. Thus, because the contact spacing and travel of the first and second micro switches are smaller, their size is smaller and their sensitivity is higher than that of the third micro switch. Therefore, it is more suitable for the limited space within the housing 01 and can effectively improve the sensitivity of the control module 10 in detecting the push rod position and latch status. At the same time, because the third micro switch has a larger contact spacing and travel, its size is larger than that of the first and second micro switches, and its operation is more stable and reliable. Therefore, it effectively ensures the stability and reliability of the control module 10 in detecting the cabinet door open / closed status. With the above configuration, the dishwasher of this application can simultaneously meet the requirements of sensitive detection of push rod position and latch status, as well as stable detection of cabinet door opening and closing status, while saving the arrangement space within the housing 01 of the door lock device 00.

[0080] In this embodiment, the control module 10 can be implemented using a main controller, such as an MCU, DSP (Digital Signal Processor), FPGA (Field Programmable Gate Array), PLC, SOC (System On Chip), etc.

[0081] refer to Figure 2 , Figure 3 , Figure 4 and Figure 5 The control module 10 can determine the state of the cabinet door 60 based on at least one of the push rod position detection signal, the latch state detection signal, and the door open / close state detection signal. Optionally, based on any embodiment, in one embodiment, the control module 10 can determine whether the cabinet door 60 is in an open or closed state based on a single signal. For example, if the aforementioned door open / close state detection signal includes a cabinet door open signal and a cabinet door close signal, the control module 10 determines whether the cabinet door 60 is in an open or closed state based on the door open / close state detection signal. Similarly, the control module 10 can also determine whether the latch 04 is engaged with the arm claw 03 based on the latch state detection signal, and determine whether the push rod 02 is in an extended or retracted position based on the push rod position detection signal.

[0082] Optionally, based on any embodiment, in another embodiment, the control module 10 can also determine the state of the cabinet door 60 based on multiple signals. For example, the control module 10 is used to determine whether the cabinet door 60 is in an open or closed state based on the push rod position detection signal and the latch state detection signal; the control module 10 determines that the cabinet door 60 is in a closed state when it determines that the push rod 02 is in the retracted position and the latch 04 is engaged with the arm claw 03 based on two signals; and the control module 10 determines that the cabinet door 60 is in an open state when it determines that the push rod 02 is in the extended position or the latch 04 is disengaged from the arm claw 03 based on two signals.

[0083] As can be seen from the above, the control module 10 can not only determine whether the cabinet door 60 is currently open or closed by detecting the door opening and closing status signal, but also determine whether the cabinet door 60 is currently open or closed based on the results of the latch status detection signal and the push rod position detection signal.

[0084] Optionally, the control module 10 can use one set of signals as the basis for determining the opening and closing status of the cabinet door 60. For example, it can use the door opening and closing status detection signal output by the cabinet door status detection component 40 as the basis for determining the opening and closing status of the cabinet door 60. Furthermore, the control module 10 can also select a set of signals as the basis for determination based on the current working status of the dishwasher. For example, when the dishwasher is in the washing state, it can use the detection signal output by the more reliable cabinet door status detection component 40 as the basis for determination.

[0085] Optionally, the control module 10 can also use both sets of signals as criteria for judging the opening and closing state of the cabinet door 60. For example, when the control module 10 determines that the cabinet door 60 is in a closed state based on the opening and closing state detection signal, it can also determine that the cabinet door 60 is in a closed state based on the push rod position detection signal and the latch state detection signal. Then the control module 10 can determine that the cabinet door 60 is indeed in a closed state. The same applies to the judgment of the open state. Alternatively, if the control module 10 determines that the cabinet door 60 is in a closed state based on either of the two sets of signals, it can directly judge that the cabinet door 60 is in a closed state. The same applies to the judgment of the open state, thereby preventing the control module 10 from misjudging the opening and closing state of the cabinet door 60 due to the malfunction of one set of detection components.

[0086] It is evident that the control device can not only accurately determine the current open / closed state of the cabinet door 60 based on the detection signals output by the three detection components, but also has a high degree of redundancy regarding the open / closed state of the cabinet door 60. In other words, during actual dishwasher use, even if one set of detection components fails to connect due to a malfunction, such as the latch status detection component 30 or the push rod position detection component 20 losing power, the control module 10 can still accurately determine whether the cabinet door 60 is open or closed based on the output of the cabinet door status detection component 40. Thus, in the aforementioned abnormal situations, the control module 10 can promptly execute corresponding protective actions based on the accurate detection of the current cabinet door 60 state. For example, if the cabinet door 60 is accidentally opened automatically during the dishwasher's washing process, or if the cabinet door 60 is opened by the user, the control module 10 can accurately confirm that the cabinet door 60 has switched from the closed state to the open state while the dishwasher is in the washing state, based on changes in the detection signal provided by the cabinet door status detection component 40, and / or changes in the detection signal output by the latch status detection component 30, and / or changes in the detection signal output by the push rod position detection component 20. This allows the control module to promptly stop the washing components, minimizing the adverse effects on the dishwasher's operation in abnormal situations. In another example, if the cabinet door 60 remains open for an extended period after the drying cycle, the control module 10, based on the above process, can determine that the cabinet door 60 has been open for a long time and can promptly remind the user, for example, by sending a notification message to the user's external terminal via internal communication or by using its built-in notification component for audio-visual reminders, to minimize the adverse effects on the dishwasher's operation in abnormal situations.

[0087] Therefore, since this application simultaneously provides three detection components for detecting the state of the latch 04, the position of the push rod 02, and the opening / closing state of the cabinet door 60, the control module 10 can determine the state of the cabinet door 60 based on the detection results given by the three detection components. This effectively ensures the accuracy and reliability of the control module 10 in recognizing and judging the state of the cabinet door 60, thereby enabling the control module 10 to accurately control the operation of the dishwasher based on the state of the cabinet door 60, minimizing the adverse effects on the use of the dishwasher under abnormal conditions, and thus improving the user's experience of using the dishwasher.

[0088] Furthermore, in another embodiment, the control module 10 is also used to determine the state of the dishwasher based on at least one of the push rod position detection signal, the latch state detection signal, and the door open / close state detection signal. For example, the dishwasher state includes: a first state, a second state, and a third state. (Referring to...) Figure 4 The dishwasher's first state includes the push lever 02 being in the retracted closed position and the latch 04 disengaging from the arm claw 03, at which point the cabinet door is in the open position. (Reference) Figure 2 The dishwasher's second state includes the push rod 02 being in the extended open position and the latch 04 engaging the arm claw 03, at which point the cabinet door is open. (Reference) Figure 3 The third state of the dishwasher includes the push rod 02 being in the extended open position and the latch 04 disengaging from the arm claw 03, at which point the cabinet door is in the open state.

[0089] It is understandable that, since the control module 10 can simultaneously determine the state of the latch 04, the position of the push rod 02, and the open / closed state of the cabinet door 60 based on the aforementioned three detection components, the control module 10 can also monitor the operating condition of the dishwasher or identify the user's usage needs based on the state of the cabinet door 60 and / or the dishwasher's state, and then make adaptive controls to achieve precise closed-loop control of the dishwasher's operating condition, thereby ensuring the reliability and stability of the dishwasher's operation and improving the user experience. In one example, when the control module 10 determines that the latch 04 of the dishwasher's cabinet door 60 has switched from the engaged arm claw 03 state to the disengaged arm claw 03 state, it can determine that the user has manually disengaged the latch. At this time, the control module 10 can control the drive component to adaptively control the push rod 02 based on the position of the push rod 02. For example, when the user manually disengages the latch, the control component can move the push rod 02 to the retracted position and then extend the push rod 02 a certain distance so that the arm claw 03 extends appropriately to facilitate the user's subsequent door closing operation. In another example, if the control module 10 determines that the cabinet door 60 is in the engaged / disengaged position... Figure 3 The third state, and then switched to Figure 2 In the second state shown, the control module 10 will determine the current user's need to close the door and can then control the drive component to operate until the cabinet door 60 is in the closed state. In another example, the control module 10 can also control the drive component to push the push rod 02 when the dishwasher needs drying and ventilation, and switch the current cabinet door 60 state from the closed state to the closed state. Figure 2 Only in the second state shown will the fan components and other components inside the cabinet 50 begin drying and ventilation operations.

[0090] In summary, this application proposes a dishwasher, comprising: a cabinet 50, a control module 10, and a door lock device 00. The cabinet 50 has a door 60 rotatably connected to it. The door lock device 00 includes a latch 04, a housing 01, and a push rod 02, a claw 03, and a drive assembly disposed within the housing 01. One end of the push rod 02 has a claw 03 that engages with the latch 04, and the drive assembly is drivenly connected to the push rod 02. One of the housing 01 and the latch 04 is disposed on the cabinet 50, and the other is disposed on the door 60. The drive assembly drives the push rod 02 to switch between a retracted position and an extended position. When the push rod 02 is in the retracted position and the latch 04 is engaged with the claw 03, the door 60 is in the closed state. When the push rod 02 is in the extended position or the latch 04 is disengaged from the claw 03, the door 60 is in the open state. The door lock device 00 further includes a push rod position detection component 20, a latch status detection component 30, and a cabinet door status detection component 40. The push rod position detection component 20 is used to detect the position of the push rod 02 and output a corresponding push rod position detection signal. The latch status detection component 30 is used to detect the connection status between the latch 04 and the arm claw 03 and output a corresponding latch status detection signal. The cabinet door status detection component 40 is used to detect the opening and closing status between the cabinet door 60 and the cabinet body 50 and output a corresponding opening and closing status detection signal. The control module 10 is used to determine the status of the cabinet door 60 based on at least one of the push rod position detection signal, the latch status detection signal, and the opening and closing status detection signal.

[0091] Through the above settings, the dishwasher of this application can determine the state of the cabinet door 60 based on the detection of the latch 04, the position of the push rod 02, and the open / closed state of the cabinet door 60. This effectively ensures the accuracy and reliability of the control module 10's identification and judgment of the cabinet door 60's state, enabling the control module 10 to accurately control the dishwasher's operation based on the cabinet door 60's state. Furthermore, in abnormal situations, the control module 10 can promptly execute corresponding protective actions based on the accurate detection of the current cabinet door 60's state, minimizing the adverse effects of abnormal situations on the dishwasher's use and thus improving the user's dishwasher experience.

[0092] Furthermore, since the control module 10 can simultaneously determine the state of the latch 04, the position of the push rod 02, and the open / closed state of the cabinet door 60 based on the aforementioned three detection components, the control module 10 can also monitor the dishwasher's operating condition or identify the user's usage needs based on the multiple states of the cabinet door 60 or the switching of those states. This allows for adaptive control, achieving precise closed-loop control of the dishwasher's operating condition, ensuring the reliability and stability of the dishwasher's operation, and improving the user experience.

[0093] Based on any embodiment of this application, refer to Figure 8In one embodiment of this application, the dishwasher further includes a first power supply module 70 and a second power supply module 80; the output terminal of the first power supply module 70 is electrically connected to the power supply terminal of the push rod position detection component 20 and the power supply terminal of the latch state detection component 30, respectively, and the output terminal of the second power supply module 80 is electrically connected to the power supply terminal of the cabinet door state detection component 40.

[0094] The first power supply module 70 is used to output a first voltage through its own output terminal, and the second power supply module 80 is used to output a second voltage through its own output terminal.

[0095] In this embodiment, both the first power supply module 70 and the second power supply module 80 can be implemented using at least one of a step-up / step-down power supply module, an LDO power supply module, and a rectifier circuit module. Optionally, in one embodiment, the input terminals of the first power supply module 70 and the second power supply module 80 can be directly connected to the DC power source inside the dishwasher, for example, to the DC bus inside the dishwasher (the DC voltage on the DC bus can be obtained by rectifying the mains voltage using the rectifier module inside the dishwasher). The first power supply module 70 steps up or steps down the DC voltage on the DC bus and outputs a first voltage to the power supply terminals of the push rod position detection component 20 and the latch status detection component 30, providing operating voltage for both the push rod position detection component 20 and the latch status detection component 30. Similarly, the second voltage module outputs a second voltage to the cabinet door status detection component 40 to power the cabinet door status detection component 40. Optionally, in another embodiment, the input terminals of the first power supply module 70 and the second power supply module 80 can also be directly connected to an AC power source in the dishwasher, such as mains power or the AC bus in the dishwasher module. The first power supply module 70 and the second power supply module 80 can rectify the AC voltage connected to their input terminals and then boost / buck the voltage to output a first voltage and a second voltage, respectively. Optionally, in yet another embodiment, one of the two power supply modules can be connected to an AC power source, and the other can be connected to a DC power source.

[0096] Inside the dishwasher, electrical connection paths can be established between the power terminals of the first power supply module 70 and the push rod position detection component 20, and between the power terminals of the latch status detection component 30, as well as between the power terminals of the second power supply module 80 and the cabinet door status detection component 40, using electrical connectors. These electrical connectors can be implemented using at least one of the following: plug-in interfaces, ribbon cables, or punch-down connections. For example, refer to... Figure 6 , Figure 6 The push rod position detection component 20 and the latch status detection component 30 shown are both mounted on the same circuit board 09. This circuit board 09 is also connected to connectors such as TYPE-C female connectors, USB-B female connectors, and Micro-usb female connectors. Figure 6 (e.g., the 5-pin terminal shown). The output of the first power module can be connected to one end of an electrical connection cable, the other end of which is connected to a plug. When the plug is connected to the terminal block, the first power module will output a first voltage to the power supply terminals of the push rod position detection component 20 and the latch status detection component 30 through its output terminal, electrical connection cable, plug, terminal block, and traces on circuit board 09. Simultaneously, the output of the second voltage module can also establish an electrical connection with the power supply terminal of the cabinet door status detection component 40 through another electrical connection cable via welding, crimping, or other methods to output a second voltage to meet the operating voltage requirements of the cabinet door status detection component 40.

[0097] With the above setup, the dishwasher provides independent power to the cabinet door status detection component 40 (responsible for detecting the opening and closing status of the cabinet door 60), the push rod position detection component 20, and the latch status detection component 30 via two different power modules. Thus, in actual operation, if one power supply line experiences an anomaly, such as a voltage module failure causing a power outage, the control module 10 can still determine the current status of the cabinet door 60 based on the signal from the other set of detection components, given the two independent power supplies. This allows the control module to adjust the dishwasher's operation accordingly, minimizing the negative user experience caused by abnormal situations. This embodiment effectively improves the reliability and stability of the dishwasher's cabinet door 60 status detection.

[0098] Optionally, the above-mentioned push rod position detection signals include embodiments of push rod extension signals and push rod retraction signals. In one embodiment of this application, reference is made to... Figure 6 and Figure 7 The push rod 02 is equipped with a first limit block;

[0099] When push rod 02 is in the retracted position, the first limit block presses the push rod position detection component 20 to make it output a push rod retraction signal;

[0100] When push rod 02 is in the extended position, the first limit block releases the pressure on push rod position detection component 20 so that it outputs a push rod extension signal.

[0101] In this embodiment, reference Figure 7 , Figure 7 The push rod 02 shown is in the retracted position, that is, the push rod 02 is retracted into the housing 01 to its innermost position. At this time, the first limiting block (not shown in the figure) on the push rod 02 will press against the push rod position detection component 20 to make it output a push rod retraction signal.

[0102] Correspondingly, refer to Figure 6 , Figure 6The push rod 02 shown is in the extended position, that is, the push rod 02 extends out of the housing 01. At this time, the first limiting block on the push rod 02 (not shown in the figure) will release the pressure on the push rod position detection component 20 so that it outputs a push rod extension signal.

[0103] Taking the push rod 02 position detection component including the first micro switch in the above embodiment as an example, the description will be provided below. Figure 9 When push rod 02 is in the retracted position, the first limit block on push rod 02 presses against the first micro switch SW1. At this time, the control module 10 receives a low-level push rod retraction signal, thus determining that push rod 02 is currently in the retracted position. Conversely, when push rod 02 is in the switch position, the first limit block on push rod 02 releases the pressure on the first micro switch. At this time, the control module 10 receives a high-level push rod extension signal, thus determining that push rod 02 is currently in the extension position.

[0104] Thus, through the above settings, when the push rod 02 is in the extended or retracted position, the corresponding structure in the door lock switch device can trigger the push rod position detection component 20 accordingly. This allows the control module 10 to accurately determine the current state of the push rod 02 based on the corresponding signal output by the push rod position detection component 20. Consequently, the control module 10 can accurately determine the state of the cabinet door 60 based on the push rod position detection signal and accurately control the operation of the dishwasher based on the state of the cabinet door 60, thereby minimizing the adverse effects on the use of the dishwasher under abnormal conditions.

[0105] Meanwhile, the above structure does not require an additional linkage triggering structure. It only needs to set a limit block on the push rod 02 to cooperate with the push rod position detection component 20 to detect the position of the push rod 02, which effectively saves the layout space inside the door lock switch device.

[0106] Optionally, based on the above-mentioned latch status detection signal including latch engagement signal and latch disengagement signal, in one embodiment of this application, the door lock device 00 further includes a slider assembly, which is movably switchable between a first position and a second position on the push rod 02;

[0107] When the latch 04 is engaged with the claw 03, the slider assembly is in the first position, and the slider assembly presses the latch state detection assembly 30 to output a latch engagement signal.

[0108] When the latch 04 disengages from the arm pawl 03, the slider assembly is in the second position, and the slider assembly releases the pressure on the latch status detection assembly 30 so that it outputs a latch release signal.

[0109] In this embodiment, the slider assembly moves in coordination with the push rod 02 driven by the drive assembly. For example, the slider assembly moves with the push rod via a locking device or a limiting device. When the latch 04 engages with the claw 03, the latch 04 triggers the slider 06 assembly to the first position. For example, when the latch 04 engages, it squeezes the slider assembly to make it the first position and presses the latch state detection component 30 to output a latch engagement signal. At this time, the control module 10 determines that the latch 04 is engaged with the claw 03 based on the received latch engagement signal. Correspondingly, when the latch 04 disengages from the claw 03, the slider assembly resets and moves to the second position. At this time, the control module 10 determines that the latch 04 has disengaged from the claw 03 based on the received latch disengagement signal.

[0110] In one embodiment, reference Figure 6 and Figure 7 The slider assembly includes a first elastic element 053 connected to the push rod 02, an intermediate slider 05 connected to the first elastic element 053, and a trigger slider 06 connected to the intermediate slider 05; the intermediate slider 05 is movable between a third position and a fourth position, and the trigger slider 06 is movable between a fifth position and a sixth position; the first elastic element 053 causes the intermediate slider 05 to have a tendency to move from the third position to the fourth position;

[0111] When the latch 04 is engaged with the arm claw 03, the latch 04 presses the middle slider 05 and compresses the first elastic element 053. The middle slider 05 is in the third position to drive the trigger slider 06 to move to the fifth position. The trigger slider 06 presses the latch status detection component 30 to make it output a latch engagement signal.

[0112] When the latch 04 disengages from the arm claw 03, the first elastic element 053 drives the intermediate slider 05 back to the fourth position, which in turn drives the trigger slider 06 to move to the sixth position. The trigger slider 06 releases the pressure on the latch status detection component 30 so that it outputs a latch release signal.

[0113] In this embodiment, the first elastic element 053 can be implemented using a spring, or using a locking connector and a spring connected to it, thereby enabling the engaged locking buckle 04 to compress the spring more accurately and stably. For the intermediate slider 05, a limiting element can be provided on the push rod 02 to allow the intermediate slider 05 to be mounted on the push rod, and to cause the intermediate slider 05 to move when the push rod moves, for example, referring to... Figure 7In this design, push rod 02 is equipped with a locking connector (when the locking is engaged, one end of the locking buckle 04 extends into it to press the intermediate slider 05). The end of the intermediate slider 05 near the arm claw 03 is located within the locking connector and moves along the extension direction of the push rod within a certain distance, allowing the intermediate slider 05 to move with the push rod and switch between the third and fourth positions. Similarly, for the trigger slider 06, push rod 02 is equipped with a limiting member to pass through the hollow trigger slider 06, so that the trigger slider 06 is mounted on the push rod and moves with the push rod, switching between the fifth and sixth positions.

[0114] The intermediate slider 05 can drive the trigger slider 06 to move along the direction of the push rod 02, or drive the trigger slider 06 to move in a direction perpendicular to the direction of the push rod 02. For example, the trigger slider 06 includes a first limiting shaft 061 disposed in the first guide hole 051 of the intermediate slider 05, and the straight line in the direction of the extension of the first guide hole 051 is perpendicular to the push rod 02. When the latch 04 is engaged with the arm claw 03, the latch 04 presses the intermediate slider 05 and compresses the first elastic member 053, and the intermediate slider 05 is in the third position so that it drives the trigger slider 06 to move to the fifth position through the first limiting shaft 061 in the first guide hole 051. When the latch 04 is disengaged from the arm claw 03, the first elastic member 053 drives the intermediate slider 05 back to the fourth position so that it drives the trigger slider 06 to move to the sixth position through the first limiting shaft 061 in the first guide hole 051.

[0115] refer to Figure 6 , Figure 6 When the latch 04 is engaged, it presses down on the intermediate slider 05 and compresses the first elastic element 053, causing the intermediate slider 05 to move towards the inside of the door lock device housing 01. The intermediate slider 05, in its third position, then presses against the trigger slider 06 towards the inside of the housing 01, causing the trigger slider 06 to move within the housing 01 in a direction perpendicular to the push rod 02, away from the gear on the push rod 02, to the fifth position. At this point, the trigger slider 06 in the fifth position presses against the latch status detection component 30, causing it to output a latch engagement signal. It should be noted that in the above embodiment, when the slider assembly is in the first position, the intermediate slider 05 is in the third position and the trigger slider 06 is in the fifth position.

[0116] refer to Figure 7 , Figure 7The diagram shows the situation where the latch 04 is disengaged. Since the latch 04 is disengaged and no longer compresses the first elastic element 053, the first elastic element 053 releases its elastic potential energy to reset the intermediate slider 05 to the fourth position. This causes the intermediate slider 05 to be pulled away from the housing 01, which in turn causes the intermediate slider 05 to move the trigger slider 06 through the first limiting shaft 061 within the first guide hole 051 along a direction perpendicular to the push rod 02 towards the gear on the push rod 02 to the sixth position. At this time, the trigger slider 06 in the sixth position will press against the latch state detection component 30, causing it to output a latch engagement signal. It should be noted that in the above embodiment, when the slider assembly is in the second position, the intermediate slider 05 is in the fourth position and the trigger slider 06 is in the sixth position.

[0117] Taking the latch state detection component 30, which includes a second micro switch, as mentioned in the above embodiment, as an example, when the latch 04 is engaged, the trigger slider 06 in the fifth position will press down on the second micro switch, causing the second micro switch to output a low-level latch engagement signal. Upon receiving the low-level latch engagement signal, the control module 10 will determine that the latch 04 is engaged. Conversely, when the latch 04 is disengaged, the trigger slider 06 in the sixth position will release the pressure on the second micro switch, causing the second micro switch to output a high-level latch release signal. Upon receiving the high-level latch release signal, the control module 10 will determine that the latch 04 is disengaged.

[0118] Thus, through the above settings, when the latch 04 is engaged with or disengaged from the arm claw 03, the corresponding structure within the door lock switch device can trigger the latch state detection component 30, so that the control module 10 can determine the current state of the latch 04 based on the corresponding signal output by the latch state detection component 30. This enables the control module 10 to accurately determine the state of the cabinet door 60 based on the latch state detection signal, and to accurately control the operation of the dishwasher based on the state of the cabinet door 60, so as to minimize the adverse effects on the use of the dishwasher under abnormal conditions.

[0119] Furthermore, since the trigger slider 06 moves vertically within the first guide hole 051 via the first limiting shaft 061 (the straight line extending from the first guide hole 051 is perpendicular to the push rod 02, i.e., it moves perpendicular to the direction in which the push rod 02 extends), in order to improve the stability and smoothness of the movement of the trigger slider 06, in one embodiment of this application, the trigger slider 06 further includes a second guide hole 063. A second limiting shaft 062 is also provided within the second guide hole 063 of the push rod 02. The extension direction of the second guide hole 063 intersects with the push rod 02, forming an acute angle with the opening facing the claw 03.

[0120] During the process of triggering the slider 06 to move between the fifth and sixth positions, the second limiting shaft 062 moves and switches accordingly within the second guide hole 063.

[0121] In this embodiment, reference Figure 6 and Figure 7 When trigger slider 06 is in Figure 6 The fifth position shown and Figure 7 During the movement between the sixth and fifth positions shown, the second limiting shaft 062 inside the housing 01 also moves within the second guide hole 063 on the trigger slider 06, allowing the trigger slider 06 to switch between the fifth and sixth positions more stably. Simultaneously, since the extension direction of the second guide hole 063 intersects the push rod 02 at an acute angle with the opening facing the pawl 03, compared to an extension direction perpendicular to the push rod 02, the movement of the trigger slider 06 is smoother. This ensures that the trigger slider 06 responds promptly when the latch 04 engages with the pawl 03 and disengages from the pawl 03, thereby ensuring the accuracy and response speed of the detection signal output by the latch state detection component 30, and the accuracy and response speed of the control module 10 in determining the state of the latch 04.

[0122] Furthermore, it is understood that in another embodiment, a plurality of second guide holes 063 are provided on the trigger slider 06, and a second limiting shaft 062 is provided in each second guide hole 063, thereby further improving the stability and smoothness of the movement of the trigger slider 06.

[0123] In addition, refer to Figure 6 and Figure 7 Based on any of the above embodiments, the housing 01 also includes a circuit board 09, and the latch status detection component 30 and the push rod position detection component 20 are both disposed on the circuit board 09.

[0124] In this embodiment, the circuit board 09 can be implemented using a ceramic substrate, fiberglass board, etc. The circuit board 09 can also be provided with an external electrical connection interface to receive external power signals and / or output signals from the push rod position detection component 20 and the latch status detection component 30 to the control module 10 inside the dishwasher. Based on the above embodiment, the push rod position detection component 20 and the latch status detection component 30 are both located near the push rod 02, resulting in a small size due to structural limitations. For example, if both are implemented using microswitches, only small microswitches can be selected. Therefore, placing both on the same circuit board 09 effectively ensures the stability and reliability of the two detection components within the door lock device 00 housing 01.

[0125] Optionally, this is based on embodiments where the door opening / closing status detection signals include cabinet door opening signals and cabinet door closing signals. In one embodiment of this application, the door lock device 00 further includes a slider assembly, a lever 07, and a second elastic element 08;

[0126] The slider assembly is movable and switchable on the push rod 02; the lever 07 can be rotated and switched between the ninth position and the tenth position. The first end 071 of the lever is connected to the second elastic member 08. The second elastic member 08 makes the first end 071 of the lever tend to press the cabinet door status detection assembly 40.

[0127] When push rod 02 is in the extended position or lock 04 is disengaged from arm claw 03, slider assembly drives lever 07 to the ninth position, and first end 071 of lever presses cabinet door status detection component 40 to output cabinet door opening signal.

[0128] With push rod 02 in the retracted position and latch 04 engaged with arm claw 03, slider assembly drives lever 07 to the tenth position. The first end 071 of lever 071 compresses the second elastic element 08 to release the pressure on cabinet door status detection component 40 so that it outputs cabinet door closing signal.

[0129] In this embodiment, the second elastic element 08 can be implemented using a spring. A slider assembly connected to the push rod 02 is provided in the housing 01 of the door lock device 00. The slider assembly moves in coordination with the push rod 02 as the drive assembly moves. When the push rod 02 is in the extended position or the latch 04 is disengaged from the arm pawl 03, i.e., when the cabinet door 60 is in the open state, the slider assembly drives the lever 07 to the ninth position, causing the first end 071 of the lever to press against the cabinet door status detection component 40, thus outputting a cabinet door open signal. Correspondingly, when the push rod 02 is in the retracted position and the latch 04 is engaged with the arm pawl 03, i.e., when the cabinet door 60 is in the closed state, the slider assembly drives the lever 07 to the tenth position, causing the first end 071 of the lever to release the pressure on the cabinet door status detection component 40, thus outputting a cabinet door closed signal. For example, when the cabinet door is closed, the slider assembly is in the eighth position, pulling up the second end 072 of the lever, thereby releasing the first end 071 of the lever from pressing the cabinet door status detection component 40. At this time, the lever 07 is in the tenth position. When the cabinet door is open, the slider assembly is in the seventh position, disengaging from the second end 072 of the lever. At this time, the lever 07 is in the ninth position under the action of the second elastic element 08.

[0130] In one embodiment, reference Figure 6 and Figure 7The slider assembly includes a first elastic element 053 connected to the push rod 02, an intermediate slider 05 connected to the first elastic element 053, and a trigger slider 06 connected to the intermediate slider 05. The intermediate slider 05 is provided with a notch 052.

[0131] When the push rod 08 is in the retracted position and the latch 04 is engaged with the arm claw 03, the latch 04 presses the middle slider 05 and compresses the first elastic element 053, so that the lever 07 engages with the notch 052 of the middle slider 05, and the lever 07 rotates to separate from the cabinet door status detection component 40 so that it outputs a cabinet door closing signal.

[0132] In this embodiment, reference Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 In all five attached diagrams, the cabinet door 60 states include the cabinet door 60 being in the open state, i.e., the push rod 02 is in the extended position or the latch 04 is disengaged from the arm claw 03. (Reference) Figure 7 and Figure 4 When the latch 04 disengages from the arm claw 03 and the push rod 02 is in the retracted position, the intermediate slider 05 will reset under the action of the first elastic element 053, so that the second end 072 of the lever no longer engages with the notch 052. At this time, the intermediate slider 05 will not restrict the second end 072 of the lever. The first end 071 of the lever will press against the cabinet door status detection component 40 under the action of the second elastic element 02. At this time, the lever 07 is in the ninth position.

[0133] refer to Figure 6 and Figure 2 When the latch is engaged with the claw 03 and the push rod 02 is in the extended position, the intermediate slider 05 or the trigger slider 06 will not restrict the second end 072 of the lever during the movement. The first end 071 of the lever will press against the cabinet door status detection component 40 under the action of the second elastic element 02. At this time, the lever 07 is in the ninth position.

[0134] refer to Figure 5 and Figure 7 , Figure 7In the case where push rod 02 is in the retracted position and latch 04 is disengaged from arm claw 03, intermediate slider 05 does not restrict the second end 072 of lever. If latch 04 engages arm claw 03 at this time, latch 04 will press intermediate slider 05 and compress the first elastic element 053, causing intermediate slider 05 to move inwards towards housing 00, thereby engaging the notch 052 on it with the second end 072 of lever to pull the second end 072 of lever. At this time, because the second end 072 of lever is pulled by the notch, lever 07 will rotate to the tenth position, and the first end 071 of lever will begin to compress the second elastic element 08 to release the pressure on cabinet door status detection assembly 40.

[0135] Taking the cabinet door status detection component 40, which includes a third micro switch and outputs a low-level signal when pressed and a high-level signal when not pressed, as an example, when the push rod 02 is in the extended position or the latch 04 is disengaged from the arm claw 03, the first end 071 of the lever presses the third micro switch. Therefore, the third micro switch outputs a low-level cabinet door opening signal. When the control module 10 receives a high-level cabinet door opening signal, it determines that the cabinet door 60 is currently in the open state.

[0136] With push rod 02 in the retracted position and latch 04 engaged with arm claw 03, the first end 071 of the lever will not press the third micro switch. Therefore, the third micro switch outputs a low-level cabinet door closing signal. When the control module 10 receives a high-level cabinet door closing signal, it will determine that the cabinet door 60 is currently in the closed state.

[0137] Thus, through the above settings, when the cabinet door 60 is in the open or closed state, the corresponding structure in the door lock switch device can trigger the cabinet door status detection component 40 accordingly. This allows the control module 10 to determine the current open / closed state of the cabinet door 60 based on the corresponding signal output by the cabinet door status detection component 40. Consequently, the control module 10 can accurately determine the state of the cabinet door 60 based on the open / closed state detection signal and accurately control the operation of the dishwasher based on the state of the cabinet door 60, thereby minimizing the adverse effects on the use of the dishwasher under abnormal conditions.

[0138] Furthermore, based on the embodiments of the corresponding latch state detection component 30 and the corresponding cabinet door state detection component 40, it can be seen that the latch state detection component 30 and the cabinet door 60 opening / closing detection component can be coupled within the housing 01 using the same slider assembly. Therefore, in one embodiment of this application, referring to... Figure 6 and Figure 7The door lock device 00 also includes a slider assembly, a lever 07, and a second elastic element 08; the slider assembly is provided on the push rod 02 and is movable between a first position, a second position, a seventh position, and an eighth position.

[0139] When the latch 04 is engaged with the claw 03, the slider assembly is in the first position, and the slider assembly presses the latch state detection assembly 30 to output a latch engagement signal.

[0140] When the latch 04 disengages from the arm pawl 03, the slider assembly is in the second position, and the slider assembly releases the pressure on the latch status detection assembly 30 so that it outputs a latch release signal.

[0141] The lever 07 can be rotated between the ninth and tenth positions, and the first end 071 of the lever is connected to the second elastic element 08.

[0142] When push rod 02 is in the extended position or lock 04 is disengaged from arm claw 03, slider assembly is in the seventh position so that it drives lever 07 to the ninth position. The first end 071 of lever presses cabinet door status detection assembly 40 so that it outputs cabinet door opening signal.

[0143] With push rod 02 in the retracted position and latch 04 engaged with arm claw 03, slider assembly is in the eighth position so that it drives lever 07 to the tenth position. The first end 071 of lever 071 compresses second elastic element 08 to release the pressure on cabinet door status detection assembly 40 so that it outputs cabinet door closing signal.

[0144] In this embodiment, the same slider assembly can be used within the housing 01 to achieve the cooperation between the latch status detection assembly 30 and the cabinet door 60 switch detection assembly, thereby effectively reducing the redundant structural settings within the door lock switch device. The specific cooperation process and optional embodiments can be found in the corresponding content of the above embodiments.

[0145] Understandably, during the engagement with the latch status detection component 30, the slider component will switch between the first and second positions; similarly, during the engagement with the cabinet door status detection component 40, the slider component will also switch positions, such as switching between the seventh and eighth positions as mentioned above. It is evident that the engagement triggering logic for the slider component corresponding to the latch status detection component 30 and the cabinet door status detection component 40 are inconsistent. In other words, if the engagement action corresponding to one set of detection components fails—for example, when the slider component is engaged or disengaged from the latch 04 at the arm 03—it cannot switch between the first and second positions accordingly. The control module 10 can still determine the state of the cabinet door 60 based on the signals provided by the other set of detection components.

[0146] For example, refer to Figure 6and Figure 7 The following example illustrates a slider assembly comprising a first elastic element 053 connected to a push rod 02, an intermediate slider 05 connected to the first elastic element 053, and a trigger slider 06 connected to the intermediate slider 05, wherein the intermediate slider 05 has a notch 052.

[0147] If the push rod 02 is currently in the retracted position, and the slider assembly cannot switch between the first and second positions when the latch 04 disengages from the arm 03 (for example, the trigger slider 06 cannot switch between the fifth and sixth positions along the first guide hole 051), then the latch status detection component 30 will malfunction. However, as mentioned above, since the position of the lever 07 is unrelated to the trigger slider 06, and the intermediate slider 05 can still switch between the third and fourth positions when the latch 04 disengages from the arm 03, the cabinet door 60 opening / closing detection component can still normally detect the opening / closing status of the cabinet door 60. That is, the control module 10 can still determine whether the cabinet door 60 is in an open or closed state based on the opening / closing status detection signal given by the cabinet door 60 opening / closing detection component.

[0148] Conversely, if the lever 07 malfunctions and cannot rotate, the second elastic element 08 malfunctions and cannot move, the intermediate slider 05 cannot engage with the second end 072 of the lever, or the second end 072 of the lever cannot enter the notch 052 when the intermediate slider 05 moves into the housing 01 with the push rod 02 in the retracted position and the latch 04 engaged with the arm claw 03, etc., these are all abnormal situations of the slider assembly. That is, if the slider assembly cannot move and switch between the seventh and eighth positions and / or the lever 07 cannot switch between the ninth and tenth positions, since the slider assembly can still switch between the first and second positions, that is, when the latch 04 is engaged, the engaged latch 04 can still press the intermediate slider 05, thereby driving the trigger slider 06 to move and press the latch status detection component 30, and when the latch 04 is disengaged, the first elastic element 053 resets and can still drive the intermediate slider 05 to pull the trigger slider 06 to release the pressure on the latch status detection component 30. Therefore, at this time, the latch status detection component 30 can normally detect the status of the latch 04. That is, the control module 10 can still confirm the status of the latch 04 based on the latch status detection signal given by the latch status detection component 30, and jointly determine whether the cabinet door 60 is in the open or closed state by combining the push rod position detection signal.

[0149] Thus, the above settings effectively ensure the accuracy and reliability of the control module 10's detection of the cabinet door 60's status, enabling the control module 10 to accurately control the current operation of the dishwasher based on the cabinet door 60's status, thereby minimizing the adverse effects on the use of the dishwasher under abnormal circumstances and improving the user's experience of using the dishwasher.

[0150] The above description is only a part of the embodiments of this application and does not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.

Claims

1. A dishwasher, characterized in that The dishwasher includes: A cabinet, wherein the cabinet is provided with a cabinet door that is rotatably connected to the cabinet; Control module; A door lock device includes a latch, a housing, and a push rod, a claw arm, and a drive assembly disposed within the housing. One end of the push rod is provided with a claw arm that engages with the latch, and the drive assembly is drivenly connected to the push rod. One of the housing and the latch is disposed on the cabinet body, and the other is disposed on the cabinet door. The drive assembly is used to drive the push rod to switch between a retracted position and an extended position. When the push rod is in the retracted position and the latch is engaged with the arm claw, the cabinet door is in the closed state. When the push rod is in the extended position or the latch is disengaged from the arm claw, the cabinet door is in the open state. The door lock device further includes a push rod position detection component, a latch status detection component, and a cabinet door status detection component; the push rod position detection component is used to detect the position of the push rod and output a corresponding push rod position detection signal; the latch status detection component is used to detect the connection status between the latch and the arm claw and output a corresponding latch status detection signal; the cabinet door status detection component is used to detect the opening and closing status between the cabinet door and the cabinet body and output a corresponding opening and closing status detection signal. The control module is used to determine the state of the cabinet door based on at least one of the push rod position detection signal, the latch state detection signal, and the door opening / closing state detection signal.

2. The dishwasher according to claim 1, characterized in that The push rod position detection signal includes: push rod extension signal and push rod retraction signal; a first limiting block is provided on the push rod; When the push rod is in the retracted position, the first limiting block presses the push rod position detection component to cause it to output the push rod retraction signal; When the push rod is in the extended position, the first limiting block releases the pressure on the push rod position detection component to cause it to output the push rod extension signal.

3. The warewashing machine of claim 1, wherein, The latch status detection signal includes a latch engagement signal and a latch disengagement signal; The latch status detection component is used to output the latch engagement signal when the latch is engaged with the arm claw; The latch status detection component is also used to output a latch release signal when the latch disengages from the arm claw.

4. The warewashing machine of claim 3, wherein, The door lock device also includes a slider assembly, which is movable and switchable between a first position and a second position on the push rod; When the latch is engaged with the arm claw, the slider assembly is in the first position, and the slider assembly presses the latch state detection assembly to make it output the latch engagement signal; When the latch disengages from the arm claw, the slider assembly is in the second position, and the slider assembly releases the pressure on the latch status detection assembly to cause it to output the latch release signal.

5. The warewashing machine of claim 4, wherein, The slider assembly includes a first elastic element connected to the push rod, an intermediate slider connected to the first elastic element, and a trigger slider connected to the intermediate slider; the intermediate slider is movable between a third position and a fourth position, and the trigger slider is movable between a fifth position and a sixth position; the first elastic element causes the intermediate slider to tend to move from the third position to the fourth position; When the latch is engaged with the arm claw, the latch presses the intermediate slider and compresses the first elastic element. The intermediate slider is in the third position to drive the trigger slider to move to the fifth position. The trigger slider presses the latch state detection component to make it output the latch engagement signal. When the latch disengages from the arm claw, the first elastic element drives the intermediate slider back to the fourth position, causing it to move the trigger slider to the sixth position. The trigger slider then releases pressure on the latch status detection component, causing it to output the latch release signal.

6. The warewashing machine of claim 5, wherein, The trigger slider includes a first limiting shaft disposed in the first guide hole of the intermediate slider, and the straight line in the extension direction of the first guide hole is perpendicular to the push rod. When the latch is engaged with the arm claw, the trigger slider moves to the fifth position within the first guide hole via the first limiting shaft; When the latch disengages from the arm claw, the trigger slider moves to the sixth position within the first guide hole via the first limiting shaft.

7. The warewashing machine of claim 6, wherein, The trigger slider also includes a second guide hole, and the push rod is further provided with a second limiting shaft in the second guide hole. The extension direction of the second guide hole intersects with the push rod and the included angle formed is an acute angle with the opening facing the claw. During the process of the trigger slider being movable between the fifth position and the sixth position, the second limiting shaft moves and switches accordingly within the second guide hole.

8. The warewashing machine of claim 1, wherein, The door opening / closing status detection signal includes a cabinet door opening signal and a cabinet door closing signal; the door lock device also includes a slider assembly, a lever, and a second elastic element; the slider assembly is movably and switchably disposed on the push rod; the lever can be rotated and switched between a ninth position and a tenth position, and the first end of the lever is connected to the second elastic element, which causes the first end of the lever to have a tendency to press the cabinet door status detection assembly; When the push rod is in the extended position or the latch is disengaged from the arm claw, the slider assembly drives the lever to the ninth position, and the first end of the lever presses the cabinet door status detection assembly to output the cabinet door opening signal. When the push rod is in the retracted position and the latch is engaged with the arm claw, the slider assembly drives the lever to the tenth position. The first end of the lever compresses the second elastic element to release the pressure on the cabinet door status detection assembly so that it outputs the cabinet door closing signal.

9. The warewash machine of claim 8, wherein, The slider assembly includes a first elastic element connected to the push rod, an intermediate slider connected to the first elastic element, and a trigger slider connected to the intermediate slider, wherein the intermediate slider is provided with a notch; When the push rod is in the retracted position and the latch is engaged with the arm claw, the latch presses the middle slider and compresses the first elastic element, so that the lever engages with the notch of the middle slider, and the lever rotates to separate from the cabinet door status detection component so that it outputs the cabinet door closing signal.

10. The dishwasher according to any one of claims 1 to 9, characterized in that The push rod position detection component includes a first micro switch; and / or, the latch status detection component includes a second micro switch; and / or, the cabinet door status detection component includes a third micro switch.

11. The dishwasher according to any one of claims 1 to 9, characterized in that The control module is also used to determine whether the cabinet door is in an open or closed state based on the door opening / closing status detection signal.

12. The dishwasher according to any one of claims 1 to 9, characterized in that The control module is also used to determine the state of the dishwasher based on at least one of the push rod position detection signal, the latch state detection signal, and the door open / close state detection signal.

13. The warewash machine of claim 12, wherein, The dishwasher states include: a first state, a second state, and a third state; The first state includes the push rod being in the retracted position and the latch being disengaged from the arm claw; The second state includes the push rod being in the extended position and the latch being engaged with the arm claw; The third state includes the push rod being in the extended position and the latch being disengaged from the arm claw.

14. The warewash machine of any of claims 1-9, wherein, The housing also includes a circuit board, on which the latch status detection component and the push rod position detection component are both mounted.

15. The warewash machine of any of claims 1-9, wherein, The dishwasher also includes a first power supply module and a second power supply module; the output terminal of the first power supply module is electrically connected to the power supply terminal of the push rod position detection component and the power supply terminal of the latch status detection component, respectively, and the output terminal of the second power supply module is electrically connected to the power supply terminal of the cabinet door status detection component. The first power supply module is used to output a first voltage through its own output terminal, and the second power supply module is used to output a second voltage through its own output terminal.

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