Dish washing machine

Abstract

The utility model relates to the technical field of dish washing machines, in particular to a dish washing machine which comprises an inner container and a door body, the door body covers the inner container to form a cavity, a middle spraying arm and a first magnetic sensor are arranged in the cavity, the middle spraying arm is provided with a first magnetic part, and the first magnetic part rotates along with rotation of the middle spraying arm; the first magnetic sensor is arranged on a motion path of the first magnetic part, when the middle spraying arm rotates, the first magnetic part gets close to or away from the first magnetic sensor, the first magnetic sensor generates signal changes, the first magnetic sensor is connected with a first controller, and the first controller is connected with a first alarm. According to the method, the Hall effect is used for reminding a user that the spraying arm is not normally operated, so that the user can find and solve problems in time, and waste of resources can be avoided.

Description

Technical Field

[0001] The present disclosure relates to the technical field of dishwashers, and in particular to a dishwasher. Background Art

[0002] The dishwasher mainly uses the internal rotating spray arm to spray high-temperature and high-pressure water to directly or indirectly wash the dishes in the dish basket. At the same time, it combines the mechanical flushing such as the divergence, reflection, and splashing of the water flow, and is supplemented by the chemical effects such as the wetting, decomposition, and immersion expansion of the detergent, and the dissolution and thermal shock of hot water to fully wash and clean the dishes to achieve the cleaning effect of the dishes. The dishwashers on the market are mainly equipped with lower spray arms, top spray arms, and middle spray arms. By spraying water at three different positions, the flushing and splashing range of the water flow can be expanded as much as possible.

[0003] Patent No. 202211451663.6 discloses a multi-layer distributed spray device for a dishwasher, including a main water inlet pipe and an upper spray arm, a middle spray arm and a lower main spray arm respectively arranged at the upper part, middle part and bottom part of the main water inlet pipe, wherein two lower auxiliary spray arms are arranged on the side of the lower main spray arm close to the main water inlet pipe, and the height of the lower auxiliary spray arm is lower than that of the lower main spray arm; and the upper spray arm and the middle spray arm are respectively connected through the upper spray arm water inlet pipe. , the water inlet pipe of the middle spray arm is connected to the main water inlet pipe, the central bottom of the lower main spray arm is provided with a lower main spray arm water inlet pipe, and the central bottom of the lower auxiliary spray arm is provided with a lower auxiliary spray arm water inlet pipe; the upper spray arm is a straight self-rotating spray arm, the middle spray arm and the lower main spray arm are trident self-rotating spray arms, and the lower auxiliary spray arm is an S-shaped self-rotating spray arm. The spray device has a wide spray coverage and multiple spray angles, and can achieve 360° spray cleaning. A bowl basket is provided between the upper spray arm and the middle spray arm. Tableware such as chopsticks and dinner plates in the bowl basket sometimes hangs upside down from the grille of the bowl basket, which can easily get stuck in the rotating middle spray arm, affecting the rotation of the middle spray arm, causing the middle spray arm to only spray water and fail to rotate normally during operation, thereby affecting the effective cleaning of tableware in the dishwasher by the middle spray arm and wasting resources. Utility Model Content

[0004] In view of the deficiencies or problems existing in the prior art, the present disclosure provides a dishwasher, which can effectively monitor whether the middle spray arm is operating normally to avoid wasting resources.

[0005] The technical solution adopted by the present disclosure to solve the above technical problems is: a dishwasher, including an inner tank and a door body, the door body covers the inner tank to form a cavity, a middle spray arm is arranged in the cavity, a first magnetic sensor is arranged on the inner tank or the door body, the middle spray arm is provided with a first magnetic part, the first magnetic part rotates with the rotation of the middle spray arm, the first magnetic sensor is used to sense the first magnetic part, when the middle spray arm rotates, the first magnetic part approaches or moves away from the first magnetic sensor, the first magnetic sensor generates a signal change, the first magnetic sensor is connected to a first controller, and the first controller is connected to a first alarm.

[0006] As a preferred implementation, the first magnetic sensor is a Hall sensor.

[0007] In some embodiments, the first magnetic sensor is disposed on a side wall of the inner container, and a first waterproof structure is disposed on the first magnetic sensor.

[0008] In some embodiments, a first mounting groove is formed on the side wall of the inner container, and the first magnetic sensor is disposed in the first mounting groove.

[0009] As a preferred embodiment, a second waterproof structure is provided at the opening of the first installation groove, and the second waterproof structure is used to isolate the first magnetic sensor from water.

[0010] In some embodiments, the first magnetic sensor is disposed on the inner side of the door body, and a first waterproof structure is disposed on the first magnetic sensor.

[0011] As a preferred embodiment, a top spray arm and a lower spray arm are also provided in the cavity, the top spray arm is arranged at the top of the inner tank, the lower spray arm is arranged at the bottom of the inner tank, a first bowl basket is arranged between the top spray arm and the middle spray arm, and a second bowl basket is arranged between the middle spray arm and the lower spray arm.

[0012] As a preferred embodiment, the lower spray arm is provided with a second magnetic part, and a second magnetic sensor is also provided in the cavity. The second magnetic part rotates with the rotation of the lower spray arm. The second magnetic sensor is arranged on the movement path of the second magnetic part. When the lower spray arm rotates, the second magnetic part approaches or moves away from the second magnetic sensor, and the second magnetic sensor generates a signal change. The second magnetic sensor is connected to a second controller, and the second controller is connected to a second alarm.

[0013] As a preferred implementation, the second magnetic sensor is a Hall sensor.

[0014] In some embodiments, the second magnetic sensor is disposed on the bottom wall of the inner container, and a third waterproof structure is disposed on the second magnetic sensor.

[0015] In some embodiments, a second mounting groove is formed on the bottom wall of the inner container, and the second magnetic sensor is disposed in the second mounting groove.

[0016] As a preferred embodiment, a fourth waterproof structure is provided at the opening of the second installation groove, and the fourth waterproof structure is used to isolate the second magnetic sensor from water.

[0017] In some embodiments, the second magnetic sensor is disposed on the inner side of the door body, and a third waterproof structure is disposed on the second magnetic sensor.

[0018] Compared with existing products, since the middle spray arm is provided with a first magnetic part, the first magnetic part rotates with the rotation of the middle spray arm, and a first magnetic sensor is provided on the inner tank or the door body, when the middle spray arm rotates, the first magnetic part approaches or moves away from the first magnetic sensor, and the first magnetic sensor generates a signal change. The first magnetic sensor is connected to a first controller, and the first controller is connected to a first alarm. If the first magnetic sensor does not generate a signal change when the middle spray arm is working, the first controller controls the first alarm to sound an alarm, and uses the Hall effect to remind the user that the middle spray arm is not operating normally. In this way, the user can discover problems in time, solve them in time, and avoid waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present application will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be used as a limitation on the scope of the present application. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0020] Figure 1 This is one of the structural schematic diagrams of a dishwasher disclosed in the present invention;

[0021] Figure 2 This disclosure Figure 1 A partial enlarged view of the middle A;

[0022] Figure 3 This is the second structural schematic diagram of a dishwasher disclosed in the present invention.

[0023] Description of reference numerals:

[0024] 1. Cavity; 2. Top spray arm; 3. Middle spray arm; 4. Lower spray arm; 5. First bowl basket; 6. Second bowl basket; 7. First magnetic sensor; 8. First magnetic part. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present disclosure, the present disclosure is described in detail, clearly and completely in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure and are not used to limit the present disclosure.

[0026] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0027] Please see Figure 1 to Figure 3 As shown, an embodiment of the present disclosure provides a dishwasher, including an inner tank and a door body, wherein the door body is hinged to the inner tank and covers the inner tank to form a cavity 1, a middle spray arm 3 is arranged in the cavity 1, a first magnetic sensor 7 is arranged on the inner tank or the door body, the middle spray arm 3 is provided with a first magnetic member 8, the first magnetic member 8 rotates with the rotation of the middle spray arm 3, the first magnetic member 8 is a magnet, the first magnetic sensor 7 is a Hall sensor, the first magnetic sensor 7 is used to sense the first magnetic member 8, when the middle spray arm 3 rotates, the first magnetic member 8 approaches or moves away from the first magnetic sensor 7, the first magnetic sensor 7 generates a signal change, The first magnetic sensor 7 is connected to the first controller, and the first controller is connected to the first alarm. That is, when the first magnetic member 8 moves relative to the first magnetic sensor 7, the first magnetic sensor 7 will generate a signal change, which proves that the middle spray arm 3 is rotating normally. During the washing process of the dishwasher, if the first magnetic sensor 7 does not sense the signal change, it means that the middle spray arm 3 is not rotating, and it is very likely that it is stuck by the tableware in the bowl basket and cannot rotate. If the first magnetic sensor 7 does not generate a signal change, the first controller controls the first alarm to alarm, reminding the user that the middle spray arm 3 is not operating normally. The first magnetic sensor 7 is connected to the first controller by signal or electrical connection. The first magnetic sensor 7 is sensed by the Hall effect-Hall element. The position of the first magnetic sensor 7 is parallel to the movement path of the first magnetic member 8. When the first magnetic member 8 passes in front of the first magnetic sensor 7, the Hall element will sense the change of the magnetic field, thereby converting the magnetic field change into an electrical signal, which is transmitted to the first controller. The present disclosure uses the Hall effect to enable users to find problems in time to ensure that the tableware is washed normally and avoid waste of resources.

[0028] In one embodiment of the present disclosure, the first magnetic sensor 7 is disposed on the side wall of the inner tank, and a first waterproof structure is disposed on the first magnetic sensor 7. The first magnetic sensor 7 is disposed on the side wall of the inner tank. When the first magnetic member 8 moves relative to the first magnetic sensor 7, the first magnetic sensor 7 can clearly sense the change in the signal. If the middle spray arm 3 is stuck and cannot rotate, the first magnetic sensor 7 can also transmit the information to the first controller very promptly. The first controller controls the first alarm to sound an alarm, reminding the user to check in time. Since each spray arm rotates and sprays water when the dishwasher is working, in order to prevent the first magnetic sensor 7 from being damaged by water, a first waterproof structure needs to be disposed on the first magnetic sensor 7. Preferably, the first waterproof structure is a plastic layer, which is low in cost and does not interfere with the operation of the first magnetic sensor 7.

[0029] In one embodiment of the present disclosure, a first mounting groove is provided in the side wall of the inner liner, and the first magnetic sensor 7 is arranged in the first mounting groove. The first mounting groove is formed by providing a hole in the side wall of the inner liner, and the first magnetic sensor 7 is installed in the hole. The provision of the first mounting groove avoids the first magnetic sensor 7 from occupying the space in the inner liner, and also makes the first magnetic sensor 7 better waterproof. It should be noted that in order to prevent the inner liner from interfering with and shielding the first magnetic sensor 7, the inner liner in this embodiment is made of plastic. Preferably, a second waterproof structure is provided at the opening of the first mounting groove, and the second waterproof structure is used to isolate the first magnetic sensor 7 from water, and the second waterproof structure is a plastic layer.

[0030] In one embodiment of the present disclosure, the first magnetic sensor 7 is arranged on the inner side of the door body, and a first waterproof structure is arranged on the first magnetic sensor 7. The first magnetic sensor 7 is arranged on the door body for easy installation and disassembly, which provides convenience for later maintenance.

[0031] In one embodiment of the present disclosure, a top spray arm 2 and a lower spray arm 4 are further provided in the cavity 1, the top spray arm 2 is provided at the top of the inner pot, the lower spray arm 4 is provided at the bottom of the inner pot, a first bowl basket 5 is provided between the top spray arm 2 and the middle spray arm 3, the top spray arm 2 and the middle spray arm 3 rinse the tableware in the first bowl basket 5, a second bowl basket 6 is provided between the middle spray arm 3 and the lower spray arm 4, the lower spray arm 4 rinses the tableware in the second bowl basket 6. If the tableware in the first bowl basket 5 is hung upside down and affects the rotation of the middle spray arm 3, the first magnetic sensor 7 feeds back to the first controller according to the change of the signal.

[0032] Further, the lower spray arm 4 is provided with a second magnetic member, and the cavity 1 is also provided with a second magnetic sensor, the second magnetic member is a magnet, the second magnetic sensor is a Hall sensor, the second magnetic member rotates with the rotation of the lower spray arm 4, the second magnetic sensor is arranged on the movement path of the second magnetic member, when the lower spray arm 4 rotates, the second magnetic member approaches or moves away from the second magnetic sensor, the second magnetic sensor generates a signal change, the second magnetic sensor is connected to a second controller, and the second controller is connected to a second alarm. If the tableware in the second bowl basket 6 is hung upside down and affects the rotation of the lower spray arm 4, the second magnetic sensor will feedback to the second controller according to the signal change. When the second magnetic member moves relative to the second magnetic sensor, the second magnetic sensor will generate a signal change, which proves that the lower spray arm 4 is rotating normally. During the washing process of the dishwasher, if the second magnetic sensor does not sense the signal change, it means that the lower spray arm 4 is not rotating, and it is very likely that it is stuck by the tableware hanging upside down in the second bowl basket 6 and cannot rotate. If the second magnetic sensor does not generate a signal change, the second controller controls the second alarm to alarm, reminding the user that the middle spray arm 3 is not operating normally and to check it in time. The second magnetic sensor is signal-connected or electrically connected to the second controller. The second magnetic sensor is sensed by the Hall effect-Hall element. The position of the second magnetic sensor is parallel to the movement path of the second magnetic part. When the second magnetic part passes directly in front of the second magnetic sensor, the Hall element will sense the change in the magnetic field, thereby converting the change in the magnetic field into an electrical signal, which is transmitted to the second controller.

[0033] In one embodiment of the present disclosure, the second magnetic sensor is disposed on the bottom wall of the inner tank, and a third waterproof structure is disposed on the second magnetic sensor. The second magnetic sensor is disposed on the bottom wall of the inner tank, and the second magnetic sensor is close to the lower spray arm 4. When the second magnetic member moves relative to the second magnetic sensor, the second magnetic sensor can clearly sense the change in the signal. If the lower spray arm 4 is stuck and cannot rotate, the second magnetic sensor can also transmit the information to the second controller very promptly. The second controller controls the second alarm to sound an alarm, reminding the user to check in time. Since each spray arm rotates and sprays water when the dishwasher is working, in order to prevent the second magnetic sensor from being wetted by water and causing damage, a third waterproof structure needs to be disposed on the second magnetic sensor. Preferably, the third waterproof structure is a plastic layer, which is low in cost and does not interfere with the operation of the second magnetic sensor.

[0034] In one embodiment of the present disclosure, a second mounting groove is provided in the bottom wall of the inner liner, and the second magnetic sensor is arranged in the second mounting groove. The second mounting groove is formed by providing a hole in the bottom wall of the inner liner, and the second magnetic sensor is installed in the hole. The provision of the second mounting groove avoids the second magnetic sensor from occupying space in the inner liner, and also makes the second magnetic sensor better waterproof. It should be noted that in order to prevent the inner liner from interfering with and shielding the second magnetic sensor, the inner liner in this embodiment is made of plastic. Preferably, a fourth waterproof structure is provided at the opening of the second mounting groove, and the fourth waterproof structure is used to isolate the second magnetic sensor from water, and the fourth waterproof structure is a plastic layer.

[0035] In one embodiment of the present disclosure, the second magnetic sensor is arranged on the inner side of the door body, and the third waterproof structure is arranged on the second magnetic sensor. The second magnetic sensor is arranged on the door body for easy installation and removal.

[0036] The present application is described in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A dishwasher, characterized in that: The invention comprises an inner container and a door body, wherein the door body covers the inner container to form a cavity (1), a middle spray arm (3) is arranged in the cavity (1), a first magnetic sensor (7) is arranged on the inner container or the door body, the middle spray arm (3) is provided with a first magnetic part (8), the first magnetic part (8) rotates with the rotation of the middle spray arm (3), the first magnetic sensor (7) is used to sense the first magnetic part (8), when the middle spray arm (3) rotates, the first magnetic part (8) approaches or moves away from the first magnetic sensor (7), the first magnetic sensor (7) generates a signal change, the first magnetic sensor (7) is connected to a first controller, and the first controller is connected to a first alarm.

2. The dishwasher according to claim 1, characterized in that The first magnetic sensor (7) is arranged on the side wall of the inner container, and a first waterproof structure is arranged on the first magnetic sensor (7).

3. The dishwasher according to claim 1, characterized in that A first mounting groove is provided on the side wall of the inner container, and the first magnetic sensor (7) is arranged in the first mounting groove.

4. The dishwasher according to claim 3, characterized in that A second waterproof structure is provided at the opening of the first installation groove, and the second waterproof structure is used to isolate the first magnetic sensor (7) from water.

5. The dishwasher according to claim 1, characterized in that: The first magnetic sensor is arranged on the inner side of the door body, and a first waterproof structure is arranged on the first magnetic sensor.

6. The dishwasher according to claim 1, characterized in that: A top spray arm (2) and a lower spray arm (4) are also provided in the cavity (1); the top spray arm (2) is provided at the top of the inner container, and the lower spray arm (4) is provided at the bottom of the inner container; a first bowl basket (5) is provided between the top spray arm (2) and the middle spray arm (3), and a second bowl basket (6) is provided between the middle spray arm (3) and the lower spray arm (4).

7. The dishwasher according to claim 6, characterized in that The lower spray arm (4) is provided with a second magnetic member, and a second magnetic sensor is also provided in the cavity (1). The second magnetic member rotates with the rotation of the lower spray arm (4). The second magnetic sensor is arranged on the movement path of the second magnetic member. When the lower spray arm (4) rotates, the second magnetic member approaches or moves away from the second magnetic sensor, and the second magnetic sensor generates a signal change. The second magnetic sensor is connected to a second controller, and the second controller is connected to a second alarm.

8. The dishwasher according to claim 7, characterized in that The second magnetic sensor is arranged on the bottom wall of the inner container, and a third waterproof structure is arranged on the second magnetic sensor.

9. The dishwasher according to claim 7, characterized in that: A second mounting groove is provided on the bottom wall of the inner container, and the second magnetic sensor is arranged in the second mounting groove; a fourth waterproof structure is provided at the opening of the second mounting groove, and the fourth waterproof structure is used to isolate the second magnetic sensor from water.

10. The dishwasher according to claim 7, characterized in that The second magnetic sensor is arranged on the inner side of the door body, and a third waterproof structure is arranged on the second magnetic sensor.

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