Dish-washing machine control circuit

Abstract

The utility model discloses a dish-washing machine control circuit which comprises a main processing module, an auxiliary processing module, a communication module, a key module, a clock module, an LED driving module, a power module, a load driving module and a sensor module. The auxiliary processing module is respectively connected with the key module, the clock module and the LED driving module, and the main processing module is respectively connected with the load driving module and the sensor module; the main processing module is in communication connection with the auxiliary processing module through the communication module, and the communication module is a USB communication module. According to the technical scheme, the main processing module and the auxiliary processing module are configured, the main processing module and the auxiliary processing module are used for achieving different control functions respectively, in addition, the USB communication module is used for transmitting data to the main processing module and the auxiliary processing module, and therefore the data processing burden is reduced, and the data processing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic circuits, and more specifically to a dishwasher control circuit. Background Art

[0002] A dishwasher is a device installed in the kitchen space for automatically washing dishes such as bowls, chopsticks, plates, dishes, knives, forks, etc. Currently, there are mainly three types of dishwashers: cabinet type, table type, integrated sink type, and integrated type.

[0003] Traditional dishwashers have a circuit board installed inside to complete the relevant power control and logic control in the dishwasher. Traditional dishwashers generally use a single intelligent control chip to complete all the logic control of the device. However, as user needs increase, technicians will configure multiple functions for dishwashers, resulting in a larger amount of data processing in the intelligent control chip, affecting the overall operation of the system. Utility Model Content

[0004] In order to solve one or more of the above technical problems, the purpose of the present utility model is to provide a dishwasher control circuit.

[0005] The technical solution adopted by the utility model to solve the problem is:

[0006] A dishwasher control circuit includes a main processing module, a sub-processing module, a communication module, a key module, a clock module, an LED driving module, a power module, a load driving module and a sensor module;

[0007] The power supply module is respectively connected to the main processing module, the auxiliary processing module, the communication module, the button module, the clock module, the LED driving module, the load driving module and the sensor module;

[0008] The auxiliary processing module is connected to the button module, the clock module and the LED driving module respectively, and the main processing module is connected to the load driving module and the sensor module respectively;

[0009] The main processing module is communicatively connected with the sub-processing module via the communication module, and the communication module is a USB communication module.

[0010] As a further improvement of the above technical solution, the power module includes an EMI filter unit, a rectifier, a filter, a power chip, a transformer L1, an inductor L2, a diode D1, a diode D2, a diode D3, a diode D4, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4 and a photoelectric coupler U1, the transformer L1 is configured with a first winding L1A, a second winding L1B, a third winding L1C and a fourth winding, and the power chip is configured with a power supply end, a sampling end, a driving end and a feedback end;

[0011] The EMI filter unit is connected to the rectifier, the rectifier is connected to the filter, the driving end of the power chip is respectively connected to the positive electrode of the diode D1 and one end of the first winding L1A, the negative electrode of the diode D1 is successively connected to the other end of the first winding L1A and the filter through the resistor R3 and the resistor R2, the capacitor C1 is connected in parallel with the resistor R2, one end of the second winding L1B is respectively connected to the positive electrode of the diode D2 and one end of the resistor R4, the other end of the resistor R4 is connected to the negative electrode of the diode D2 through the capacitor C2, the negative electrode of the diode D2 is powered externally, the other end of the second winding L1B is respectively connected to the negative electrode of the diode D3, one end of the capacitor C3 and the negative electrode of the resistor R4. The first embodiment of the present invention is characterized in that the first embodiment of the present invention is connected to one end of the inductor L2, the positive electrode of the diode D3 is connected to one end of the third winding L1C, the other end of the third winding L1C is respectively connected to the other end of the capacitor C3 and the ground, the other end of the inductor L2 is connected to the ground through the capacitor C4, the connection point between the inductor L2 and the capacitor C4 is powered externally, the connection point between the inductor L2 and the capacitor C4 is connected to the input end of the photoelectric coupler U1, the output end of the photoelectric coupler U1 is connected to the feedback end of the power chip, the sampling end of the power chip is connected to the ground through the resistor R1, one end of the fourth winding L1D is connected to the ground, the other end of the fourth winding L1D is connected to the positive electrode of the diode D4, and the negative electrode of the diode D4 is connected to the power supply end of the power chip.

[0012] As a further improvement of the above technical solution, the clock module includes a clock chip of model HT1381, a capacitor C5, a capacitor C6, a capacitor C7, a crystal oscillator X1 and a resistor R5. The clock chip is configured with a first crystal oscillator end, a second crystal oscillator end, a reset end, a data end and a timing end. The two ends of the crystal oscillator X1 are connected to the first crystal oscillator end and the second crystal oscillator end of the clock chip in a one-to-one correspondence. The first crystal oscillator end of the clock chip is connected to the ground end through the capacitor C5, and the second crystal oscillator end of the clock chip is connected to the ground end through the capacitor C6. The reset end and the timing end of the clock chip are connected to the sub-processing module in a one-to-one correspondence. The data end of the clock chip is respectively connected to the sub-processing module and one end of the capacitor C7 through the resistor R5, and the other end of the capacitor C7 is connected to the ground end.

[0013] As a further improvement of the above technical solution, the load driving module includes a driving chip of model ULN2003 and multiple relays, the multiple input ends of the driving chip are connected one-to-one with the main processing module, and the multiple output ends of the driving chip are connected one-to-one with the control ends of the multiple relays.

[0014] As a further improvement of the above technical solution, the communication module includes a communication chip of model CH375B, a capacitor C8, a capacitor C9 and a crystal oscillator X2. The communication chip is configured with a first crystal oscillator end, a second crystal oscillator end, a host communication end and a slave communication end. The first crystal oscillator end of the communication chip is connected to the ground end through the capacitor C8, and the second crystal oscillator end of the communication chip is connected to the ground end through the capacitor C9. The two ends of the crystal oscillator X2 are connected one-to-one with the first crystal oscillator end and the second crystal oscillator end of the communication chip. The host communication end of the communication chip is connected to the main processing module, and the slave communication end of the communication chip is connected to the sub-processing module.

[0015] The beneficial effect of the utility model is that the technical solution is configured with a main processing module and a sub-processing module, the main processing module and the sub-processing module are respectively used to realize different control functions, and in addition, a USB communication module is used to transmit data between the main processing module and the sub-processing module, thereby reducing the data processing burden and improving data processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further explained below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a circuit module framework diagram of the utility model;

[0018] Figure 2 It is a circuit schematic diagram of the power module in the utility model;

[0019] Figure 3 It is a circuit schematic diagram of the clock module in the utility model;

[0020] Figure 4 This is a circuit schematic diagram of the load drive module in the utility model;

[0021] Figure 5 It is a circuit schematic diagram of the communication module in the utility model. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] In the description of the present invention, it should be understood that the descriptions involving orientations, such as up, down, front, back, left, right, etc., and the orientations or positional relationships indicated are based on the orientations or positional relationships described in the accompanying drawings, and 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, and therefore cannot be understood as a limitation on the present invention.

[0024] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0025] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the technical field can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0026] Reference Figures 1 to 5 , the present application discloses a dishwasher control circuit, a first embodiment of which includes a main processing module, a sub-processing module, a communication module, a key module, a clock module, an LED driving module, a power module, a load driving module and a sensor module;

[0027] The power supply module is respectively connected to the main processing module, the auxiliary processing module, the communication module, the button module, the clock module, the LED driving module, the load driving module and the sensor module;

[0028] The auxiliary processing module is connected to the button module, the clock module and the LED driving module respectively, and the main processing module is connected to the load driving module and the sensor module respectively;

[0029] The main processing module is communicatively connected with the sub-processing module via the communication module, and the communication module is a USB communication module.

[0030] Specifically, this embodiment is configured with the main processing module and the sub-processing module, and the main processing module and the sub-processing module are respectively used to realize different control functions. In addition, a USB communication module is used as a communication module to transmit data between the main processing module and the sub-processing module, thereby reducing the data processing burden and improving data processing efficiency.

[0031] As a further preferred implementation, in this embodiment, the power module includes an EMI filter unit, a rectifier, a filter, a power chip model Q02FR01_DQ-1, a transformer L1, an inductor L2, a diode D1, a diode D2, a diode D3, a diode D4, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4 and a photoelectric coupler U1, the transformer L1 is configured with a first winding L1A, a second winding L1B, a third winding L1C and a fourth winding, and the power chip is configured with a power supply end, a sampling end, a driving end and a feedback end;

[0032] The EMI filter unit is connected to the rectifier, the rectifier is connected to the filter, the driving end of the power chip is respectively connected to the positive electrode of the diode D1 and one end of the first winding L1A, the negative electrode of the diode D1 is successively connected to the other end of the first winding L1A and the filter through the resistor R3 and the resistor R2, the capacitor C1 is connected in parallel with the resistor R2, one end of the second winding L1B is respectively connected to the positive electrode of the diode D2 and one end of the resistor R4, the other end of the resistor R4 is connected to the negative electrode of the diode D2 through the capacitor C2, the negative electrode of the diode D2 is powered externally, the other end of the second winding L1B is respectively connected to the negative electrode of the diode D3, one end of the capacitor C3 and the negative electrode of the resistor R4. The first embodiment of the present invention is characterized in that the first embodiment of the present invention is connected to one end of the inductor L2, the positive electrode of the diode D3 is connected to one end of the third winding L1C, the other end of the third winding L1C is respectively connected to the other end of the capacitor C3 and the ground, the other end of the inductor L2 is connected to the ground through the capacitor C4, the connection point between the inductor L2 and the capacitor C4 is powered externally, the connection point between the inductor L2 and the capacitor C4 is connected to the input end of the photoelectric coupler U1, the output end of the photoelectric coupler U1 is connected to the feedback end of the power chip, the sampling end of the power chip is connected to the ground through the resistor R1, one end of the fourth winding L1D is connected to the ground, the other end of the fourth winding L1D is connected to the positive electrode of the diode D4, and the negative electrode of the diode D4 is connected to the power supply end of the power chip.

[0033] As a further preferred implementation, in this embodiment, the clock module includes a clock chip of model HT1381, a capacitor C5, a capacitor C6, a capacitor C7, a crystal oscillator X1 and a resistor R5. The clock chip is configured with a first crystal oscillator end, a second crystal oscillator end, a reset end, a data end and a timing end. The two ends of the crystal oscillator X1 are connected to the first crystal oscillator end and the second crystal oscillator end of the clock chip in a one-to-one correspondence. The first crystal oscillator end of the clock chip is connected to the ground end through the capacitor C5, and the second crystal oscillator end of the clock chip is connected to the ground end through the capacitor C6. The reset end and the timing end of the clock chip are connected to the sub-processing module in a one-to-one correspondence. The data end of the clock chip is respectively connected to the sub-processing module and one end of the capacitor C7 through the resistor R5, and the other end of the capacitor C7 is connected to the ground end.

[0034] Further as a preferred implementation, in this embodiment, the load driving module includes a driving chip of model ULN2003 and multiple relays, the multiple input ends of the driving chip are connected one-to-one with the main processing module, and the multiple output ends of the driving chip are connected one-to-one with the control ends of the multiple relays.

[0035] As a further preferred implementation, in this embodiment, the communication module includes a communication chip of model CH375B, a capacitor C8, a capacitor C9 and a crystal oscillator X2, the communication chip is configured with a first crystal oscillator end, a second crystal oscillator end, a host communication end and a slave communication end, the first crystal oscillator end of the communication chip is connected to the ground end through the capacitor C8, the second crystal oscillator end of the communication chip is connected to the ground end through the capacitor C9, the two ends of the crystal oscillator X2 are connected one-to-one with the first crystal oscillator end and the second crystal oscillator end of the communication chip, the host communication end of the communication chip is connected to the main processing module, and the slave communication end of the communication chip is connected to the sub-processing module.

[0036] As a further preferred implementation, in this embodiment, the sensor module is specifically used to realize temperature detection, flow detection, overflow detection, rinse agent detection, and salt detection functions.

[0037] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention specification and drawings under the utility model concept, or directly or indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A dishwasher control circuit, characterized in that: It includes a main processing module, a sub-processing module, a communication module, a button module, a clock module, an LED driving module, a power module, a load driving module and a sensor module; The power supply module is respectively connected to the main processing module, the auxiliary processing module, the communication module, the button module, the clock module, the LED driving module, the load driving module and the sensor module; The auxiliary processing module is connected to the button module, the clock module and the LED driving module respectively, and the main processing module is connected to the load driving module and the sensor module respectively; The main processing module is communicatively connected with the sub-processing module via the communication module, and the communication module is a USB communication module.

2. A dishwasher control circuit according to claim 1, characterized in that: The power module includes an EMI filter unit, a rectifier, a filter, a power chip, a transformer L1, an inductor L2, a diode D1, a diode D2, a diode D3, a diode D4, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4 and a photoelectric coupler U1. The transformer L1 is configured with a first winding L1A, a second winding L1B, a third winding L1C and a fourth winding. The power chip is configured with a power supply end, a sampling end, a driving end and a feedback end. The EMI filter unit is connected to the rectifier, the rectifier is connected to the filter, the driving end of the power chip is respectively connected to the positive electrode of the diode D1 and one end of the first winding L1A, the negative electrode of the diode D1 is successively connected to the other end of the first winding L1A and the filter through the resistor R3 and the resistor R2, the capacitor C1 is connected in parallel with the resistor R2, one end of the second winding L1B is respectively connected to the positive electrode of the diode D2 and one end of the resistor R4, the other end of the resistor R4 is connected to the negative electrode of the diode D2 through the capacitor C2, the negative electrode of the diode D2 is powered externally, the other end of the second winding L1B is respectively connected to the negative electrode of the diode D3, one end of the capacitor C3 and the negative electrode of the resistor R4. The first embodiment of the present invention is characterized in that the first embodiment of the present invention is connected to one end of the inductor L2, the positive electrode of the diode D3 is connected to one end of the third winding L1C, the other end of the third winding L1C is respectively connected to the other end of the capacitor C3 and the ground, the other end of the inductor L2 is connected to the ground through the capacitor C4, the connection point between the inductor L2 and the capacitor C4 is powered externally, the connection point between the inductor L2 and the capacitor C4 is connected to the input end of the photoelectric coupler U1, the output end of the photoelectric coupler U1 is connected to the feedback end of the power chip, the sampling end of the power chip is connected to the ground through the resistor R1, one end of the fourth winding L1D is connected to the ground, the other end of the fourth winding L1D is connected to the positive electrode of the diode D4, and the negative electrode of the diode D4 is connected to the power supply end of the power chip.

3. A dishwasher control circuit according to claim 1, characterized in that: The clock module includes a clock chip of model HT1381, a capacitor C5, a capacitor C6, a capacitor C7, a crystal oscillator X1 and a resistor R5. The clock chip is configured with a first crystal oscillator end, a second crystal oscillator end, a reset end, a data end and a timing end. The two ends of the crystal oscillator X1 are connected to the first crystal oscillator end and the second crystal oscillator end of the clock chip in a one-to-one correspondence. The first crystal oscillator end of the clock chip is connected to the ground end through the capacitor C5, and the second crystal oscillator end of the clock chip is connected to the ground end through the capacitor C6. The reset end and the timing end of the clock chip are connected to the auxiliary processing module in a one-to-one correspondence. The data end of the clock chip is respectively connected to the auxiliary processing module and one end of the capacitor C7 through the resistor R5, and the other end of the capacitor C7 is connected to the ground end.

4. A dishwasher control circuit according to claim 1, characterized in that: The load driving module includes a driving chip of model ULN2003 and multiple relays. The multiple input terminals of the driving chip are connected to the main processing module in a one-to-one correspondence, and the multiple output terminals of the driving chip are connected to the control terminals of the multiple relays in a one-to-one correspondence.

5. A dishwasher control circuit according to claim 1, characterized in that: The communication module includes a communication chip of model CH375B, a capacitor C8, a capacitor C9 and a crystal oscillator X2. The communication chip is configured with a first crystal oscillator end, a second crystal oscillator end, a host communication end and a slave communication end. The first crystal oscillator end of the communication chip is connected to the ground end through the capacitor C8, and the second crystal oscillator end of the communication chip is connected to the ground end through the capacitor C9. The two ends of the crystal oscillator X2 are connected one-to-one with the first crystal oscillator end and the second crystal oscillator end of the communication chip. The host communication end of the communication chip is connected to the main processing module, and the slave communication end of the communication chip is connected to the secondary processing module.

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