Door locking device of dish washing machine and dish washing machine

Abstract

The utility model relates to a door locking device of a dish-washing machine and the dish-washing machine. The device can comprise a door body, a pull rope, an elastic module, a control module and a rope locking module, one end of the pull rope is connected with the door body; the other end of the pull rope is connected with the elastic module; the elastic module is subjected to telescopic deformation under the condition that the door body is opened and closed; the rope locking module is connected with the control module; the control module is used for controlling the rope locking module to clamp the pull rope under the condition that the washing program of the dish washing machine is started and the door body is closed. According to the technical scheme provided by the utility model, the door body of the dish-washing machine can be stably locked in the cleaning process, meanwhile, the door body can be prevented from being scalded by hot water in a washing cavity of the dish-washing machine due to mistaken opening, and the use safety and reliability of the dish-washing machine are effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to kitchen appliance technical field especially, relate to a lock door device and dish washer of dish washer. BACKGROUND

[0002] The current market circulating dish washer door body design, most is allowing user to open and close freely. However, in the case that dish washer is in washing operation state, if user opens dish washer door body directly, will face the risk of being scalded. Because this time dish washer inside uses the high temperature washing water that is heated, very likely causes user to suffer from scald.

[0003] In addition, for the dish washer that is washing operation, its washing pump is bearing the work load and carries out circuit control through relay. Once the door body is opened suddenly, the control module of dish washer will immediately implement the power-off measure to washing pump to prevent it from continuing to run and causing harm to user. But in the moment of power-off, the relay contact will change and may produce the phenomenon of sparking. This not only will seriously reduce the service life of relay, but also will have bad influence on the main control board life of dish washer, and then makes the maintenance frequency of dish washer increase. SUMMARY

[0004] The utility model provides a lock door device and dish washer of dish washer to at least solve how to improve dish washer safety etc. in related art. The technical scheme of the utility model is as follows:

[0005] According to the first aspect of the utility model embodiment, provide a lock door device of dish washer, including door body, drawstring, elastic module, control module and lock rope module;

[0006] One end of the drawstring is connected with the door body, and the other end of the drawstring is connected with the elastic module;

[0007] The elastic module is stretched and contracted under the opening and closing of the door body;

[0008] The lock rope module is connected with the control module; The control module is used for controlling the lock rope module to clamp the drawstring under the condition that the door body is closed when the dish washer cleaning program is started.

[0009] In a possible implementation manner, the lock rope module includes a lock rope motor, a transmission unit and a fixed part;

[0010] The lock rope motor is connected with the transmission unit, the transmission unit is connected with the fixed part, and the drawstring moves in the middle of the fixed part;

[0011] The control module is further configured to send a forward rotation driving instruction to the lock cord motor when the dish washing machine is in a cleaning process and the door body is closed.

[0012] The lock cord motor is configured to receive the forward rotation driving instruction and drive the transmission unit to control the fixed part to clamp the pull cord.

[0013] In a possible implementation, the door locking device further comprises a door opening and closing monitoring module.

[0014] The door opening and closing monitoring module is arranged at the opening and closing of the door body, and is connected with the control module.

[0015] The control module is further configured to send a door body monitoring instruction to the door opening and closing monitoring module when the dish washing machine is in the cleaning process, and the door opening and closing monitoring module is configured to receive the door body monitoring instruction, acquire the opening and closing state information of the door body, and send the opening and closing state information to the control module.

[0016] In a possible implementation, the door locking device further comprises a current monitoring unit.

[0017] The current monitoring unit is arranged on the lock cord motor, and the control module is connected with the current monitoring unit.

[0018] The current monitoring unit is configured to acquire a first current monitoring result when the lock cord motor is driven to rotate forward, and send the first current monitoring result to the control module.

[0019] The control module is further configured to receive the first current monitoring result, and control the lock cord motor to stop driving when the first current monitoring result exceeds a current threshold.

[0020] In a possible implementation, the door locking device further comprises a voice reminding module.

[0021] The voice reminding module is connected with the control module, and the control module is further configured to control the voice reminding module to perform voice reminding when the cleaning process is started and the door body is opened.

[0022] In a possible implementation, the control module is further configured to stop the dish washing machine from working and send a reverse rotation driving instruction to the lock cord motor when the dish washing machine is in a cleaning process and a door opening button is triggered.

[0023] The lock cord motor is further configured to receive the reverse rotation driving instruction and drive the transmission unit to control the fixed part to loosen the pull cord.

[0024] In a possible implementation, the current monitoring unit is configured to acquire a second current monitoring result when the lock rope motor is reversely driven, and send the second current monitoring result to the control module.

[0025] The control module is further configured to receive the second current monitoring result, and control the lock rope motor to stop driving when the second current monitoring result exceeds the current threshold.

[0026] In a possible implementation, the door locking device further comprises a display panel, which is connected with the control module.

[0027] The display module is configured to display the running state of the dishwasher and the control instruction of the control module.

[0028] In a possible implementation, the door locking device further comprises a transmission wheel, which is arranged between the door body and the elastic module, and the pull rope moves on the transmission wheel.

[0029] According to a second aspect of the embodiments of the present application, a dishwasher is provided, which comprises the door locking device according to any one of the above-mentioned implementations.

[0030] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, but not limiting the present application.

[0031] The technical scheme provided by the embodiments of the present application at least brings the following beneficial effects:

[0032] By cooperation of the lock rope module and the control module, the control module controls the lock rope module to tighten the pull rope when the washing program of the dishwasher is started and the door body is in the closed state, which effectively prevents the door body from being mistakenly opened during the washing process of the dishwasher and being scalded by hot water in the washing cavity of the dishwasher, thereby improving the stability and safety of the dishwasher during the washing process. At the same time, it also avoids the instantaneous power failure when the dishwasher is opened, reduces the service life of the dishwasher, reduces the maintenance frequency and maintenance cost of the dishwasher, and prolongs the service life of the dishwasher.

[0033] Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF DRAWINGS

[0034] To more clearly illustrate the technical solutions and advantages in the embodiments or prior art of this specification, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a structural diagram illustrating a door locking device for a dishwasher according to an exemplary embodiment.

[0036] Figure 2 This is a structural diagram of a rope locking module according to an exemplary embodiment.

[0037] Figure 3 This is a schematic diagram illustrating a dishwasher control function according to an exemplary embodiment.

[0038] Figure 4 This is a structural diagram of a dishwasher according to an exemplary embodiment.

[0039] In the diagram, 1-door body, 2-drive wheel, 3-pull rope, 4-locking rope module, 5-elastic module, 6-display panel. Detailed Implementation

[0040] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments in the specification, and not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0041] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or server that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.

[0042] Various exemplary embodiments, features, and aspects of the present application will be described herein below with reference to the accompanying drawings. Identical reference numerals in the drawings denote elements having the same or similar functions or elements. Although various aspects of the embodiments are illustrated in the drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0043] The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations. The term "and / or" includes any and all combinations of one or more of the associated listed items. The term "at least one of' means one or more or any combination thereof.

[0044] Unless specifically stated otherwise, the directions in this document should be understood in the following manner: the direction close to the user is the front, and the direction away from the user is the back.

[0045] In addition, in order to better illustrate the present application, a large number of specific details are given in the specific embodiments below. Those skilled in the art should understand that the present application can also be implemented without some specific details. In some examples, methods, means, elements and circuits that are well known to those skilled in the art are not described in detail in order to highlight the main idea of the present application.

[0046] It should be noted that the following figures show a possible sequence of steps, which does not necessarily have to be strictly followed. Some steps can be performed in parallel without being dependent on each other. The user information (including but not limited to user device information, user personal information, user behavior information, etc.) and data (including but not limited to data for display, training data, etc.) involved in the present application are all information and data authorized by the user or fully authorized by all parties.

[0047] The dishwasher is a modern kitchen household appliance that can automatically clean dishes, cutlery, and other household products. It integrates washing, disinfecting, and drying into one, has high cleaning efficiency, and can completely remove oil and food residue on tableware through high-pressure water flow and high-temperature hot water. After the dishwasher completes the washing task, it will also perform drying and disinfection treatment to ensure that the tableware is dry and sterile. It has intelligent control, and the dishwasher usually comes with an intelligent control system that can automatically adjust the cleaning program and time according to the dirtiness of the tableware, the number and material of the tableware, and other functional features. The present application does not limit this.

[0048] According to different designs and functions, dishwashers can be divided into various types. The following types can be included but are not limited to:

[0049] Built-in dishwasher: This type of dishwasher is usually designed to be embedded in the kitchen cabinet, flush with the surface of the cabinet, suitable for large families or users who need to wash dishes frequently. Tabletop dishwasher: Small in size, designed to be placed on the kitchen countertop, usually suitable for small families or users with limited kitchen space. Sink dishwasher: Usually installed next to or below the sink, occupying less space, users can put dishes into the dishwasher as usual. Drawer dishwasher: Designed as a drawer, easy to open and close, making it easier for users to take and put dishes. Portable dishwasher: Usually small in size, with wheels, easy to move to different rooms or outdoor use; usually suitable for users who need to change their living place frequently or want to use the dishwasher when they are outdoors. The door locking device of the dishwasher of the present application can be applied to any of the above dishwashers, and the type of the dishwasher is not limited by the present application.

[0050] Figure 1 is a structure diagram of a door locking device of a dishwasher according to an exemplary embodiment. As shown in Figure 1 , the door locking device includes a pull rope 3, an elastic module 5 and a door body 1.

[0051] The pull rope 3 is used to connect the door body 1 and the elastic module 5. In the case of moving the door body 1, the pull rope 3 will also move. The pull rope 3 in the present application uses a rope without elasticity, i.e. in the process of opening and closing the door body 1, the pull rope 3 will not stretch or contract.

[0052] One end of the pull rope 3 is connected to the door body 1, and the other end of the pull rope 3 is connected to the elastic module 5. The elastic module 5 is a device that can stretch and deform with the movement of the pull rope 3, i.e. in the case of opening and closing the door body 1, it will stretch and deform.

[0053] The elastic module 5 can be spring steel, a common elastic element, with the advantages of simple structure, easy to manufacture and low cost. In the door locking device of the dishwasher, a compression spring or a tension spring can be used to realize the function of the elastic module 5. The elastic module 5 can also be an elastic sheet. The elastic sheet is an elastic element made of thin plate material, with certain bending and restoring ability. In the door locking device of the dishwasher, the elastic sheet can be designed in a shape connected to the pull rope 3, when the pull rope 3 moves, the elastic sheet bends and deforms, storing elastic potential energy. When the pull rope 3 is released, the elastic sheet restores its shape, releasing the elastic potential energy, helping the door body 1 to remain closed. The type of the elastic module 5 in the door locking device is not limited by the present application.

[0054] The door locking device further comprises one or more transmission wheels 2, and the number of the transmission wheels 2 is not limited in the utility model. The transmission wheel 2 is arranged between the door body 1 and the elastic module 5, in the process of opening the door body 1, the pull rope 3 can drive the transmission wheel 2 to move towards the direction of the door body 1 of the dishwasher, and in the process of closing the door body 1, the pull rope 3 can drive the transmission wheel 2 to move towards the opposite direction of the door body 1 of the dishwasher. One or more transmission wheels 2 are designed in the door locking device, which can reduce the friction and wear of the pull rope 3 in the process of opening and closing the door, improve the durability of the pull rope 3, and further reduce the maintenance cost of the dishwasher.

[0055] In a possible implementation, the door locking device of the dishwasher is further provided with a lock rope module 4, one end of the lock rope module 4 is fixed on the dishwasher. The fixing mode includes: screw fixing, the lock rope module 4 is designed as a component with a screw hole at one end, and the screw hole is tightly connected with the preset screw hole in the door locking device of the dishwasher; buckle fixing, the lock rope module 4 is designed as a component with a buckle structure at one end, and the buckle structure of the lock rope module 4 is inserted into the preset buckle slot in the door locking device of the dishwasher to realize fixing; welding fixing, the door locking device of the dishwasher and the lock rope module 4 are fixed by welding; adhesive fixing, the high-strength adhesive is used to paste one end of the lock rope module 4 on the door locking device of the dishwasher. The fixing mode of the lock rope module 4 is not limited in the utility model, and can be determined according to the actual situation.

[0056] Figure 2 It is a structure diagram of a lock rope module 4 according to an exemplary embodiment. As shown in Figure 2 The door locking device further comprises one or more transmission wheels 2, and the number of the transmission wheels 2 is not limited in the utility model. The transmission wheel 2 is arranged between the door body 1 and the elastic module 5, in the process of opening the door body 1, the pull rope 3 can drive the transmission wheel 2 to move towards the direction of the door body 1 of the dishwasher, and in the process of closing the door body 1, the pull rope 3 can drive the transmission wheel 2 to move towards the opposite direction of the door body 1 of the dishwasher. One or more transmission wheels 2 are designed in the door locking device, which can reduce the friction and wear of the pull rope 3 in the process of opening and closing the door, improve the durability of the pull rope 3, and further reduce the maintenance cost of the dishwasher.

[0057] The control module is connected to the rope-locking motor in the rope-locking module 4. Specifically, the control module controls the rope-locking motor to rotate forward and backward. The rope-locking motor drives the transmission unit in the rope-locking module 4, thereby controlling the clamping and releasing of the pull rope 3. In the door locking device of the dishwasher, after receiving the drive command from the control module, which includes forward and reverse drive commands, the rope-locking motor drives the transmission unit to move according to the drive commands, thereby controlling the clamping degree of the fixing part on the pull rope 3, realizing the locking and opening of the door 1. The rope-locking motor may include: a stator: the stationary part of the rope-locking motor, which typically includes an iron core and windings. The iron core is made of laminated silicon steel sheets to reduce eddy current and hysteresis losses; the windings are typically made of insulated wires and are used to generate a magnetic field or induced electromotive force; the rotor is the rotating part of the rope-locking motor, which converts the magnetic field generated by the stator into mechanical energy, thereby driving the motor shaft to rotate; bearings are used to support the rotation of the rotor, reduce friction and wear, and ensure the stability of motor operation.

[0058] In one possible implementation, the door locking device also includes a door opening / closing monitoring module, which is a crucial component of the locking device. This module can be a magnetic sensor monitoring module, operating by using a magnetic sensor, such as a magnetic door switch, to detect whether the door 1 is open or closed. The magnetic sensor can be fixed to the open / closed position of the door 1. When the dishwasher door 1 is closed, the magnetic sensor approaches the magnet fixed to the door 1, triggering the magnetic sensor to send the door 1's open / closed status information to the control module.

[0059] The door opening / closing monitoring module can also be a photoelectric sensor monitoring module, which works by detecting the position of door 1 by emitting and receiving light. When door 1 is closed, the photoelectric sensor monitoring module blocks the light, thereby obtaining the opening / closing status information of door 1 and sending this information to the control module. This invention does not limit the type of door opening / closing monitoring module.

[0060] When the dishwasher's cleaning program starts, the control module sends a door opening / closing monitoring command to the door opening / closing monitoring module. Upon receiving the command, the door opening / closing monitoring module immediately monitors the opening / closing status of door 1. For example, the door opening / closing monitoring module is a photoelectric sensor. When the control module starts the cleaning program, it sends a door monitoring command to the door opening / closing monitoring module, i.e., the photoelectric sensor; the photoelectric sensor acquires the opening / closing status information of door 1 and immediately sends it to the control module.

[0061] Figure 3 This is a schematic diagram illustrating a dishwasher control function according to an exemplary embodiment. Figure 3As shown, the door locking device further comprises a voice reminding module connected with the control module. After receiving the opening and closing state information of the door body 1, the control module analyzes that the opening and closing state information of the door body 1 is that the door body 1 is opened. At this time, the control module can control the voice reminding module to perform voice reminding processing, that is, to perform a bee buzzing alarm or to perform a short and clear voice prompt, for example, "the door body 1 of the dishwasher is not closed, please check". The utility model does not make limitation on this.

[0062] After the user closes the door body 1, the control module receives the opening and closing state information of the door body 1 indicating that the door body 1 is closed. At this time, the control module can control the voice reminding module to stop voice reminding, and at the same time, the dishes in the dishwasher are cleaned.

[0063] In a possible implementation, the lock rope module 4 further comprises a transmission unit and a fixed part. The transmission unit can be a linkage rod transmission, a belt transmission, a gear transmission or a chain transmission, and the utility model does not make limitation on this. The fixed part can be provided as two clamping blocks located above and below the pull rope 3, that is, an upper clamping block and a lower clamping block. Exemplarily, the lock rope motor drives the transmission unit, which can include an upper transmission unit and a lower transmission unit. The upper transmission unit controls the upper clamping block, and the lower transmission unit controls the lower clamping block. Specifically, the upper transmission unit will immediately drive the upper clamping block to move downward in the direction of the pull rope, and the lower transmission unit will immediately drive the lower clamping block to control the pull rope upward. The positions of the upper clamping block and the lower clamping block correspond to each other. Further, the transmission unit will drive the fixed part, that is, the upper clamping block and the lower clamping block to clamp the pull rope 3, so that the user cannot open the door body at this time.

[0064] The door locking device further comprises a current monitoring unit. The current monitoring unit can be arranged on the lock rope motor and can directly monitor the current change of the lock rope motor. The current monitoring unit can be a Hall current sensor, which measures the current by using the Hall effect principle and has the characteristics of high precision, good linearity, temperature stability and the like. The utility model does not make limitation on the type of the current monitoring unit. The current monitoring unit is also connected with the control module. In the case that the lock rope motor starts to drive in the forward direction, the control module instructs the current monitoring unit to perform monitoring processing. The current monitoring unit monitors the current change of the lock rope motor and obtains a first current monitoring result, that is, the current change when the lock rope motor drives in the forward direction, and sends the first current monitoring result to the control module.

[0065] The control module receives the first current monitoring result, and in the case that the first current monitoring result exceeds the current threshold value, the control module controls the lock rope motor to stop driving, so as to ensure that the current of the lock rope motor is within a normal range, which can prevent the motor from being damaged due to overload, short circuit and the like, and also can avoid potential safety risks.

[0066] The lock rope module 4 further comprises a display panel 6, and the control module is connected with the display panel 6; the display module is used for displaying the running state of the dishwasher and the corresponding control instruction of the control module. During the cleaning process of the dishwasher, the user presses the door opening button in the display panel 6, the control module will immediately stop the dishwasher, and sends a reverse driving instruction to the lock rope motor. After receiving the reverse driving instruction, the lock rope motor can reverse according to the reverse driving instruction, and then drive the transmission unit to control the fixed part to loosen the pull rope 3.

[0067] Figure 4 is a structural diagram of a dishwasher according to an exemplary embodiment. As shown in Figure 4 The door locking device is arranged at the side of the dishwasher and connected with the door body 1 of the dishwasher, and the lock rope module 4 is also arranged at the side of the dishwasher and used for controlling the state of the pull rope 3, so that the door body 1 cannot be easily opened during the cleaning process of the dishwasher, effectively improving the safety and reliability of the dishwasher, and preventing the dishwasher from being scalded due to accidental opening.

[0068] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. The specification and examples given are exemplary only and the true scope and spirit of the application is indicated by the claims. The true scope and spirit of the application is indicated by the following claims.

[0069] It should be understood that the present application is not limited to the precise construction that has been described above and illustrated in the accompanying drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the present application. The scope of the present application is limited only by the appended claims.

Claims

1. A door locking device for a dishwasher, characterized in that, Includes the door body, pull rope, elastic module, control module, and locking rope module; One end of the pull rope is connected to the door body, and the other end of the pull rope is connected to the elastic module; The elastic module expands and contracts as the door is opened and closed. The locking rope module is connected to the control module; the control module is used to control the locking rope module to clamp the pull rope when the dishwasher cleaning program is on and the door is closed.

2. The door locking device according to claim 1, characterized in that, The rope locking module includes a rope locking motor, a transmission unit, and a fixing part; The locking rope motor is connected to the transmission unit, the transmission unit is connected to the fixing part, and the pull rope moves in the middle of the fixing part; The control module is also used to send a forward rotation drive command to the locking rope motor when the dishwasher cleaning program is started and the door is closed; The locking rope motor is used to receive the forward rotation drive command and drive the transmission unit to control the fixing part to clamp the pull rope.

3. The door locking device according to claim 2, characterized in that, The door locking device also includes a door opening and closing monitoring module; The door opening and closing monitoring module is installed at the door's opening and closing point; the door opening and closing monitoring module is connected to the control module; The control module is also used to send a door monitoring command to the door opening and closing monitoring module when the dishwasher cleaning program is started; the door opening and closing monitoring module is used to receive the door monitoring command, obtain the door opening and closing status information, and send it to the control module.

4. The door locking device according to claim 2, characterized in that, The door locking device also includes a current monitoring unit; The current monitoring unit is mounted on the locking rope motor, and the control module is connected to the current monitoring unit; The current monitoring unit is used to acquire a first current monitoring result when the locking rope motor is driven in the forward direction, and send the first current monitoring result to the control module; The control module is also used to receive the first current monitoring result, and control the locking rope motor to stop driving when the first current monitoring result exceeds the current threshold.

5. The door locking device according to claim 1, characterized in that, The door locking device also includes a voice prompt module; The voice reminder module is connected to the control module, and the control module is also used to control the voice reminder module to give a voice reminder when the cleaning program is started and the door is open.

6. The door locking device according to claim 4, characterized in that, The control module is also used to stop the dishwasher from working and send a reverse drive command to the locking rope motor when the door opening button is triggered during the washing process. The locking rope motor is also used to receive the reverse drive command and drive the transmission unit to control the fixing part to release the pull rope.

7. The door locking device according to claim 6, characterized in that, The current monitoring unit is used to obtain a second current monitoring result when the locking rope motor is driven in reverse, and to send the second current monitoring result to the control module. The control module is also used to receive the second current monitoring result, and control the locking rope motor to stop driving when the second current monitoring result exceeds the current threshold.

8. The door locking device according to claim 4, characterized in that, The door locking device also includes a display panel, which is connected to the control module; The display panel is used to display the operating status of the dishwasher and the control commands of the control module.

9. The door locking device of the dishwasher according to claim 1, characterized in that, The locking device also includes a drive wheel, which is disposed between the door body and the elastic module, and the pull rope moves on the drive wheel.

10. A dishwasher, characterized in that, The dishwasher includes the door locking device according to any one of claims 1-9.

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