Dish-washing machine control circuit and dish-washing machine

Abstract

The utility model discloses a dishwasher control circuit and a dishwasher, and aims to solve the problem that a dishwasher control panel in the prior art is easily affected by water vapor to cause circuit failure and corrosion. The dishwasher control circuit comprises a power panel 1 and a control panel 2, the power panel 1 is provided with a wireless power supply transmitting module 12 and a first wireless communication module 11, and the control panel 2 is integrated with a wireless power supply receiving module 22, a second wireless communication module 21 and a lithium battery module 23. The power panel 1 and the control panel 2 are connected in a wireless mode, wireless power supply and data transmission are achieved, the problems of sealing performance and waterproofness caused by a wiring mode of an existing control panel are solved, and the water vapor prevention performance of the control panel and the reliability of the whole machine are effectively improved. The dish-washing machine control circuit is easy to implement, the use experience of the dish-washing machine can be remarkably improved, and the service life of the dish-washing machine can be remarkably prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, and specifically provides a dishwasher control circuit and a dishwasher. Background Art

[0002] This solution is based on a household dishwasher. In the prior art, the solution for waterproofing the dishwasher control panel is as follows: the control panel is glued with a glue filling box, and the communication line and power line are used to connect and communicate with the power board. The glue filling box is fixed to the upper glass with glue, and the glass is fixed to the entire machine door with glue.

[0003] Since the communication lines and power lines need to be connected to the outside world, sealing strips are required, which makes the door body unable to be sealed as a whole. During the operation of the whole machine, the temperature inside the tank rises and condensation water will form inside the door body. Due to the uniformity of the sealant and the flatness of the control board glue box, there will be certain errors. In actual use, water vapor will have a certain probability of entering the control board, causing partial failure and corrosion of the control board circuit. Therefore, this field needs a new design scheme that can improve the waterproof performance and sealing of the control board. Utility Model Content

[0004] The utility model aims to provide a dishwasher control circuit and a dishwasher, which solve the sealing and waterproof problems of the existing control panel caused by the wiring mode.

[0005] To achieve the above-mentioned purpose, the utility model provides a dishwasher control circuit and a dishwasher, including a power board 1 and a control board 2, the power board 1 includes a first wireless communication module 11 and a wireless power transmission module 12, the control board 2 includes a second wireless communication module 21, a wireless power receiving module 22 and a lithium battery module 23; the power board 1 and the control board 2 are wirelessly connected through the first wireless communication module 11 and the second wireless communication module 21; the power board 1 transmits energy to the wireless power receiving module 22 of the control board 2 through the wireless power transmission module 12, and the wireless power receiving module 22 supplies power to the control board 2.

[0006] Under normal power supply conditions, the wireless power receiving module 22 uses part of the received energy to power the control board 2, and the other part to charge the lithium battery module 23. When the wireless power receiving module 22 cannot receive energy, the lithium battery module 23 provides backup energy to ensure the operation of the control board 2.

[0007] In a specific embodiment of the utility model, the power board 1 includes a power self-check circuit, which detects whether there is an abnormal connection in the whole machine load when powered on. The wireless communication module sends a signal to find and establish a connection with the control board 2. After the connection is established, the wireless communication module transmits and analyzes the signal, and selects a suitable working mode to run the dishwasher until the washing process is completed.

[0008] In a specific implementation of the present invention, the wireless power receiving module 22 in the control board 2 is in a default on state, and a power judgment circuit is set to detect whether there is wireless power input from the power board 1 and whether the lithium battery module 23 has sufficient power.

[0009] In the specific implementation of the utility model, the control board 2 is encapsulated by a fully sealed device and is arranged inside the dishwasher door, further improving the waterproof and anti-corrosion capabilities of the dishwasher control circuit. In addition, since the control board 2 is internally connected by wireless signals, problems that may be caused by shaking of the traditional wiring harness are avoided, thereby improving the reliability of the device.

[0010] In summary, the utility model provides a dishwasher control circuit, which integrates a power board 1 and a control board 2, and uses a first wireless communication module 11 and a second wireless communication module 21 to realize wireless data interaction, and at the same time completes wireless power supply to the control board 2 through a wireless power transmission module 12 and a wireless power receiving module 22. Since the control board uses a wireless communication module to exchange data with the power board, the control board does not need to rely on traditional communication lines and power lines for physical connection, and can effectively prevent water vapor from entering the interior of the control board through these interfaces. Therefore, the technical characteristics of wireless communication directly lead to the control board having a better water vapor protection effect, which significantly improves the reliability of the dishwasher in a hot and humid environment.

[0011] In summary, the dishwasher control circuit of the utility model has the beneficial effects of being waterproof and steam-resistant, having strong circuit power supply stability, and having a long circuit service life, which effectively improves the performance, lifespan, and user satisfaction of the entire household dishwasher. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solution of the utility model, the following is a brief introduction to the drawings required for use in the embodiments or prior art descriptions, in which:

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a control flow chart of the power board 1 of the utility model;

[0015] Figure 3 It is a control flow chart of the control panel 2 of the utility model;

[0016] Reference numerals:

[0017] 1-power board; 11-first communication module; 12-wireless power transmission module; 2-control board; 21-second communication module; 22-wireless power receiving module; 23-lithium battery module. DETAILED DESCRIPTION

[0018] The technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. The embodiment provides a dishwasher control circuit and a dishwasher. The design feature of the circuit is to use wireless power supply and wireless communication technology to improve the reliability and ease of operation of the dishwasher.

[0019] Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Before describing the present invention, it should be understood that the present invention is not limited by the fixed position of the traditional wiring harness and control board. In any embodiment, the terms "install", "link", "connect" and other descriptors can be used in any way, which define physical or circuit relationships that can be direct or indirect. This means that the elements or functions described can be connected to other elements or functions in a direct and / or indirect manner. In this specification, the orientation or position relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. is set according to the schematic diagrams in the accompanying drawings, and is only for the convenience and simplicity of description. It is not used to limit the scope of the present invention and should not be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are used for descriptive purposes, and do not interpret any specific order or priority, nor do they imply the importance or quantity of technical characteristics.

[0021] See also Figure 1 As shown, this example provides a dishwasher control circuit and a dishwasher, the power board 1 includes a first wireless communication module 11 and a wireless power transmission module 12, and the control board 2 includes a wireless power receiving module 22 and a second wireless communication module 21. The power board 1 and the control board 2 are wirelessly connected through the above-mentioned wireless communication modules. The power board 1 transmits energy to the wireless power receiving module 22 of the control board 2 through the wireless power transmission module 12, thereby wirelessly powering the control board 2. The communication and energy transmission between the power board 1 and the control board 2 are realized wirelessly, which effectively improves the waterproof vapor performance and overall reliability of the control board.

[0022] The power board 1 and the control board 2 are wirelessly connected via the first wireless communication module 11 and the second wireless communication module 21 to achieve wireless data exchange and avoid the use of cables for physical connection. The wireless communication implementation method of the control board 2 and the power board 1 can use radio frequency identification (RFID), Bluetooth, Wi-Fi or other modern wireless communication technologies, which eliminates the need for physical cables and reduces the risk of failure due to cable damage or poor connection, while also improving the aesthetics of the system and the flexibility of occupying space.

[0023] The wireless power transmission module 12 on the power board 1 transmits energy to the wireless power receiving module 22 on the control board 2 to realize wireless power supply of the dishwasher control circuit. The wireless power receiving module 22 converts the received energy into electrical energy to supply the control board 2. The wireless power supply technology can use magnetic resonance, inductive coupling or other wireless power transmission methods, so that the control board can receive electrical energy without direct cable connection, reducing the possibility of water vapor erosion and internal condensation, and enhancing the waterproof performance of the entire control system. Furthermore, the application of these technologies can also simplify the internal structure design of the dishwasher, facilitate assembly and maintenance, and improve the overall performance and user experience of the whole machine; in addition, multiple wireless communication modules can be set up as backup when the original wireless communication module fails, reducing the difficulty of maintenance.

[0024] The wireless power receiving module 22 of the control board 2 is activated by default, and a lithium battery module 23 is integrated inside the control board 2, which can provide backup power when the wireless power supply is interrupted. The wireless power receiving module 22 of the control board 2 directly receives wireless power from the power board 1, and part of the power is used to charge the lithium battery module 23, so that even if the external power input is interrupted or unstable, the lithium battery module 23 can continue to supply power to the control board 2, thereby ensuring that the control circuit of the dishwasher can continue to work stably under any conditions. This technical feature of wireless power supply ensures independent power supply of the control board by eliminating the external power line, further increasing the stability and reliability of the circuit.

[0025] In the dishwasher control circuit of the utility model, the power board 1 also includes a whole machine self-check circuit, which checks whether there is any abnormality in the load connection of the whole machine when powered on to ensure the normality of the load connection of the dishwasher. If the self-check is normal, the wireless power transmission module 12 will be activated, and the wireless communication circuit will try to find the control board 2 and establish a connection; when there is an abnormal connection, the self-check circuit will feedback an error signal and suspend the subsequent process until the fault is eliminated. Through the whole machine self-check circuit, the dishwasher can automatically check whether the load connection of the circuit is normal when it is started, thereby ensuring that the device is in good condition before starting, preventing potential circuit faults from affecting user use, and enhancing the safety performance of the system.

[0026] The power board 1 also includes an analysis circuit for analyzing the interactive signal sent by the control board 2 and selecting an appropriate operating mode based on the analysis result to ensure that the dishwasher can work normally according to the user's settings. The analysis circuit can accurately interpret the signal sent by the control board and select an appropriate operating mode, which means that the dishwasher can respond to the user's operating instructions more intelligently, improving the convenience of use and the intelligence level of the equipment.

[0027] In addition, the control board 2 is also equipped with a power judgment circuit, which is designed to detect whether there is power input from the power board 1. The main function is for the wireless power receiving module 22 to determine whether there is power input, and to detect whether the lithium battery module 23 has sufficient power. When the wireless power receiving module 22 is not supplied with energy and the lithium battery module 23 is low on power, the control board 2 enters a standby state, waiting for power to be restored. By monitoring whether there is energy input to the wireless power receiving module 22 and the power status of the lithium battery 23, the circuit can effectively avoid accidental system interruptions due to power problems, ensuring that the dishwasher can maintain basic operating conditions even in the event of a temporary interruption of the main power supply. In addition, when insufficient power is detected, the control board can automatically enter a standby state, thereby saving energy and avoiding unnecessary losses, and quickly returning to the working state after power is restored, thereby improving the energy efficiency and maintenance convenience of the equipment.

[0028] The design concept of the control board 2 is to place it in a fully sealed device and install it inside the door of the dishwasher. Since the control board 2 is fully sealed, it not only avoids the intrusion of water vapor, but also reduces the impact of environmental factors such as dust and oil on the circuit board. This fully sealed technical feature provides better circuit protection, thereby avoiding potential damage to the circuit caused by water vapor to the greatest extent, ensuring the water vapor and corrosion resistance of the control circuit, extending the service life of the dishwasher circuit board and reducing maintenance costs.

[0029] In actual operation, the user can make necessary settings through the external operation interface paired with the control panel 2, such as selecting a dishwashing program, setting a dishwashing time, etc. The control panel 2 receives these instructions transmitted by the first wireless communication module 11 and the second wireless communication module 21, and drives the dishwasher to perform corresponding operations according to the settings. The user does not need to directly touch the control panel 2, and therefore does not need to worry about malfunctions caused by moisture intrusion.

[0030] Figure 2 The method shown is a control flow of the power board 1, which may specifically include the following steps:

[0031] S101: Power board 1 is powered on for self-test to check whether the load of the whole machine is abnormally connected;

[0032] S102: When the self-check is normal, the wireless power transmission module 12 will be activated; when there is an abnormal connection, the self-check circuit feeds back an error signal and suspends the subsequent process until the fault is eliminated;

[0033] S103: The first wireless communication module 11 of the power board 1 sends a signal to find the control board 2 for connection;

[0034] S104: The power board 1 determines whether a response is received from the control board 2;

[0035] S105: If the power board 1 receives a reply from the control board 2, it analyzes the control board interaction signal, selects a working mode and runs the dishwasher according to the mode; if the target cannot be found, the signal is continuously sent.

[0036] Figure 3 The method shown is a control flow of the control board 2, which may specifically include the following steps:

[0037] S201: The wireless power receiving module 22 of the control board 2 is turned on by default

[0038] S202: Detect whether the wireless power receiving module 22 has power input, if yes, proceed to step 3; if no, determine whether the lithium battery module 23 has power, if yes, proceed to step 3; if both power sources have no power, wait for power input;

[0039] S203: The second wireless communication module 22 of the control board 2 is turned on and sends a signal to the power board 1

[0040] S204: Control board 2 determines whether it has received a reply from power board 1

[0041] S205: If the control board 2 receives a reply from the power board 1, it sends the user interaction information to the power board 1; if the target cannot be found, it keeps sending the signal.

[0042] In summary, the application of the dishwasher control circuit of the utility model provides a new design solution for household dishwashers, and exhibits the following beneficial effects: it effectively solves the problems of water accumulation in the wiring of traditional control circuits, poor sealing, and susceptibility to water vapor, which can lead to failures, and can bring positive impacts in improving equipment reliability, enhancing user experience, etc.

[0043] The above are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Without departing from the design spirit of the present invention, any formal modification, replacement and change of the same or similar technical features made by those skilled in the art to the present invention shall be included in the protection scope of the present invention.

Claims

1. A dishwasher control circuit, characterized in that: It comprises a power board (1) and a control board (2), wherein the power board (1) comprises a first wireless communication module (11) and a wireless power transmission module (12), and the control board (2) comprises a wireless power receiving module (22) and a second wireless communication module (21); The power board (1) and the control board (2) are wirelessly connected via the first wireless communication module (11) and the second wireless communication module (21); The power board (1) transmits energy to the wireless power receiving module (22) of the control board (2) via the wireless power transmitting module (12), and the wireless power receiving module (22) supplies power to the control board (2).

2. The dishwasher control circuit according to claim 1, characterized in that: The first wireless communication module (11) is connected to the second wireless communication module (21) by wireless communication.

3. The dishwasher control circuit according to claim 1, characterized in that: The wireless power transmission module (12) is connected to the wireless power reception module (22) for wireless power supply.

4. The dishwasher control circuit according to claim 1, characterized in that: The control panel (2) further comprises a lithium battery module (23); the wireless power receiving module (22) supplies power to the lithium battery module (23); and the lithium battery module (23) supplies power to the control panel (2) when there is no power input to the wireless power receiving module (22).

5. The dishwasher control circuit according to claim 1, characterized in that: The power board (1) comprises a whole machine self-checking circuit for detecting whether the whole machine load has an abnormal connection when power is turned on.

6. The dishwasher control circuit according to claim 1, characterized in that: The power board (1) comprises an analysis circuit for analyzing the interactive signal sent by the control board (2).

7. The dishwasher control circuit according to claim 4, characterized in that: The control panel (2) comprises a power supply determination circuit for detecting whether the wireless power supply receiving module (22) has power input and determining whether the lithium battery module (23) has sufficient power.

8. The dishwasher control circuit according to claim 1, characterized in that: The control panel (2) is arranged in a fully sealed device, and the control panel (2) located in the fully sealed device is arranged inside the door of the dishwasher.

9. A dishwasher, characterized in that: The dishwasher control circuit comprises the dishwasher control circuit as described in any one of claims 1 to 8.

Images