CN217064089U - Communication assembly and household appliance comprising same - Google Patents

Abstract

The application provides a communication assembly and household appliance comprising the same. The communication assembly comprises a main control board and an NFC circuit board; the main control panel is provided with a main control circuit. The NFC circuit board is connected with the main control board; the NFC circuit board is provided with an NFC circuit, and the NFC circuit comprises an NFC chip, an NFC antenna connected with the NFC chip and an anti-static diode connected with the NFC chip; the NFC chip comprises a communication port, the NFC chip is electrically connected with the master control circuit through the communication port and is in communication connection with external NFC equipment through the NFC antenna, the NFC circuit further comprises a grounding end, and the anti-static diode is electrically connected between the communication port and the grounding end. The household electrical appliance comprises a main shell and the communication assembly, wherein the communication assembly is arranged in the main shell. NFC circuit board and master control board independent setting, the NFC circuit board can the modularization, and the commonality is strong, and application scope is wide.

Description

Communication assembly and household appliance comprising same

Technical Field

The application relates to the field of small household appliances, in particular to a communication assembly and household appliance comprising the same.

Background

With the increasing living standard of people, many different types of household appliances appear on the market. Some home devices include NFC circuitry through which to communicate with external NFC devices (e.g., NFC-enabled cell phones). Some household electrical appliances's NFC circuit and control circuit locate on same circuit board, and NFC circuit application scope is restricted, and the commonality is not strong.

SUMMERY OF THE UTILITY MODEL

The application provides a communication assembly with strong universality and household appliance equipment comprising the same.

The present application provides a communication assembly comprising:

the main control panel is provided with a main control circuit;

the NFC circuit board is connected with the main control board and is provided with an NFC circuit, the NFC circuit comprises an NFC chip, an NFC antenna connected with the NFC chip and an anti-static diode connected with the NFC chip, the NFC chip comprises a communication port, the NFC chip is electrically connected with the main control circuit through the communication port and is in communication connection with external NFC equipment through the NFC antenna, the NFC circuit further comprises a grounding end, and the anti-static diode is electrically connected between the communication port and the grounding end.

In some embodiments, NFC circuit board and main control board independent setting, the NFC circuit board can the modularization, the flexibility is higher, prevent that the static diode electricity connects between communication port and earthing terminal, unusual signals such as static can prevent to appear in the communication port department of NFC chip damage the NFC chip, make the antistatic properties of NFC circuit board strong, thereby make the different main control boards of NFC circuit board can the adaptation, in different applications, interconnecting link length between NFC circuit board and the main control board is probably different, however the NFC circuit board all can be antistatic well, the interconnecting link that adaptation length is different, thereby the adaptation degree of NFC circuit board is higher, therefore, the commonality is strong, wide application range.

Optionally, the NFC circuit includes a power supply terminal, and the anti-static diode includes a first anti-static diode electrically connected between the power supply terminal and the ground terminal. In some embodiments, the first anti-static diode can prevent the NFC chip from being damaged by abnormal signals such as static electricity occurring at the power supply terminal.

Optionally, the communication port includes a control terminal, and the anti-static diode includes a second anti-static diode electrically connected between the control terminal and a ground terminal. In some embodiments, the second anti-static diode may prevent the NFC chip from being damaged by abnormal signals such as static electricity occurring at the control terminal.

Optionally, the communication port includes a data terminal, and the anti-static diode includes a third anti-static diode electrically connected between the data terminal and a ground terminal. In some embodiments, the third static electricity prevention diode can prevent the NFC chip from being damaged by abnormal signals such as static electricity occurring at the data end.

Optionally, the communication port includes a chip selection terminal, and the anti-static diode includes a fourth anti-static diode electrically connected between the chip selection terminal and a ground terminal. In some embodiments, the fourth anti-static diode can prevent the NFC chip from being damaged by abnormal signals such as static electricity occurring at the chip selection terminal.

Optionally, the communication port includes an output end, and the anti-static diode includes a fifth anti-static diode electrically connected between the output end and a ground end. In some embodiments, the fifth anti-static diode can prevent the NFC chip from being damaged by abnormal signals such as static electricity occurring at the output terminal.

Optionally, the NFC circuit further includes a power supply terminal and an anti-interference resistor, one end of the anti-interference resistor is electrically connected to the communication port, and the other end of the anti-interference resistor is electrically connected to the ground terminal or the power supply terminal. In some embodiments, the anti-interference resistance can keep the stability of level, is favorable to long distance transmission between NFC chip and the main control board, under the different circumstances of line length between NFC circuit board and the main control board, all can guarantee the accuracy of signal reliable, no matter master control circuit sets up anti-interference resistance moreover, all can be effectively anti-jamming to can the different main control boards of adaptation, consequently can be applicable to different applications, the commonality is high, application scope is wider.

Optionally, the communication port includes a power supply end, and the anti-interference resistor includes a first pull-up resistor electrically connected between the control end and the power supply end. In some embodiments, the first pull-up resistor is used for pulling up the voltage of the control terminal to a high level of the power supply terminal, so that the high level is guaranteed to be stable.

Optionally, the communication port includes a data terminal, and the anti-interference resistor includes a second pull-up resistor electrically connected between the data terminal and the power supply terminal. In some embodiments, the second pull-up resistor is used for pulling up the voltage of the data terminal to a high level of the power supply terminal, so that the high level is guaranteed to be stable.

Optionally, the communication port includes an output terminal, the anti-interference resistor includes a third pull-up resistor, and the third pull-up resistor is electrically connected between the output terminal and the power supply terminal. In some embodiments, the third pull-up resistor is used for pulling up the voltage of the output end to the high level of the power supply end, and the high level is guaranteed to be stable.

Optionally, the communication port includes a chip selection end, and the anti-interference resistor includes a pull-down resistor electrically connected between the chip selection end and a ground end. In some embodiments, the pull-down resistor is used for pulling down the voltage of the chip selection terminal to a low level of the ground terminal, so that even if a port of the main control circuit connected with the chip selection terminal is suspended or in a high-impedance state, the chip selection terminal is also in a low level, the NFC chip can still work, and communication is normal.

Optionally, the NFC chip includes a first antenna connection port and a second antenna connection port; the NFC antenna comprises a first antenna end and a second antenna end, the first antenna end is electrically connected with the first antenna connection port, and the second antenna end is electrically connected with the second antenna connection port; the NFC circuit comprises at least one filter capacitor which is electrically connected between the first antenna end and the second antenna end. In some embodiments, the filter capacitor plays a role in filtering, so that data transmitted between the NFC antenna and the NFC chip are more accurate.

Optionally, the NFC circuit includes a power supply terminal; the NFC chip comprises a power supply end which is electrically connected with the power supply end; the NFC circuit comprises at least one power supply capacitor which is electrically connected between the power supply end and the power supply end. In some embodiments, the power supply capacitor may store energy and may supply power to the NFC chip, so that the operating stability of the NFC chip is better.

Optionally, the communication port includes a control terminal, and the NFC circuit includes a first current-limiting resistor electrically connected between the control terminal and the ground terminal. In some embodiments, the first current limiting resistor is used to prevent static electricity or external large current from damaging the NFC chip.

Optionally, the communication port includes a data terminal, and the NFC circuit includes a second current-limiting resistor electrically connected between the data terminal and a ground terminal. In some embodiments, the second current limiting resistor is used to prevent static electricity or external large current from damaging the NFC chip.

Optionally, the communication port includes a chip select terminal, and the NFC circuit includes a third current-limiting resistor electrically connected between the chip select terminal and a ground terminal. In some embodiments, the third current limiting resistor is used to prevent static electricity or external large current from damaging the NFC chip.

Optionally, the communication port includes an output end, and the NFC circuit includes a fourth current-limiting resistor electrically connected between the output end and a ground end. In some embodiments, the fourth current limiting resistor is used to prevent static electricity or external large current from damaging the NFC chip.

Optionally, a storage circuit and an oscillation circuit are integrated in the NFC chip. In some embodiments, a storage circuit and an oscillation circuit are integrated in the NFC chip, so that the integration level is high, and the peripheral circuit structure of the NFC chip is simplified.

Optionally, the NFC chip includes an active NFC chip. In some embodiments, the active NFC chip supports read and write operations and is more adaptable.

Optionally, the NFC chip is electrically connected to the main control circuit through an SPI bus or an IIC bus. In some embodiments, the SPI bus may enable faster transmission speeds between the NFC chip and the master circuitry.

In some embodiments, the IIC bus requires a smaller number of ports.

The embodiment of the present application further provides a household electrical appliance, including: a main housing and a telecommunications assembly as claimed in any preceding claim, the telecommunications assembly being provided within the main housing.

Optionally, the NFC circuit board of the communication assembly and the main control board of the communication assembly are disposed on different inner walls of the main housing. In some embodiments, the NFC circuit board and the main control board are independently arranged, the NFC circuit board is small in size, and is convenient to arrange in the main housing, so that a large space is not required, and the NFC circuit board and the main control board are arranged on different side walls of the main housing, so that the side walls of the main housing can provide enough space for the NFC circuit board, so that the NFC circuit board can be easily assembled at a position close to the main housing in the main housing, and the distance between the NFC circuit board and the outer surface of the main housing is small, so that the NFC chip can be easily and successfully induced by external NFC equipment, and the communication connection is convenient.

Optionally, the main housing includes a top wall and a side wall connected to the top wall, the main control board is disposed on the top wall, and the NFC circuit board is disposed on the side wall. In some embodiments, the main control board is disposed on the top wall, the NFC circuit board is disposed on the side wall, and the NFC circuit board may utilize the space of the side wall of the main housing and may have a large enough space for mounting the NFC circuit board, so that the NFC circuit board may be as close as possible to the main housing, thereby facilitating the approach of an external NFC device for communication connection. And locate different inner walls with the main control board with the NFC circuit board, be convenient for assemble.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

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

Fig. 1 is a schematic structural diagram of an embodiment of a home appliance according to the present application.

Fig. 2 is a cross-sectional view of the home device shown in fig. 1 taken along line a-a.

Fig. 3 is a schematic block diagram of a circuit of the home appliance shown in fig. 1.

Fig. 4 is a circuit diagram of the communication assembly shown in fig. 3.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "a number" means two or more. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

The communication assembly of the embodiment of the application comprises a main control board and an NFC circuit board. The main control panel is provided with a main control circuit. The NFC circuit board is connected with the main control board, the NFC circuit board is equipped with the NFC circuit, the NFC circuit includes the NFC chip, the NFC antenna of being connected with the NFC chip and the antistatic diode of being connected with the NFC chip, the NFC chip includes the communication port, the NFC chip passes through the communication port and is connected with the master control circuit electricity, and through NFC antenna and outside NFC equipment communication connection, the NFC circuit still includes the earthing terminal, the antistatic diode electricity is connected between communication port and earthing terminal. NFC circuit board and main control panel independent setting, the NFC circuit board can the modularization, the flexibility is higher, prevent that the static diode electricity connects between communication port and earthing terminal, unusual signals such as static can prevent to appear in the communication port department of NFC chip and damage the NFC chip, make the antistatic properties of NFC circuit board strong, thereby make the different main control panels of NFC circuit board can the adaptation, in different applications, interconnecting link length between NFC circuit board and the main control panel probably is different, however the NFC circuit board all can be antistatic well, the interconnecting link that adaptation length is different, thereby the adaptation degree of NFC circuit board is higher, therefore, the commonality is strong, wide application range.

The application provides a communication assembly and household appliance comprising the same. The communication assembly and the home appliance including the same according to the present application will be described in detail with reference to the accompanying drawings. The features of the following examples and embodiments may be combined with each other without conflict.

Fig. 1 is a schematic structural diagram of an embodiment of a home appliance 10 according to the present application. Fig. 2 is a cross-sectional view of the household appliance 10 of fig. 1 taken along line a-a. The household appliance 10 includes a processor, which may include a multifunctional processor, and may be used for food processing such as cooking, braising, steaming, fermenting, soup cooking, and the like, and also for food processing such as juicing, kneading, grinding, ice shaving, whipping, and the like. The multifunctional food processor can be used for cooking foods such as fried dishes according to recipes. In other embodiments, the food processor may include an autoclave, an electric rice cooker, a microwave oven, an induction cooker, an electric chafing dish, a blender, a juice extractor, a soymilk maker, a wall breaking machine, or the like. In other embodiments, home appliance 10 may include a refrigerator, a washing machine, a range hood, or the like.

In the embodiment shown in fig. 1 and 2, the household appliance 10 is a wall breaking machine, and includes a main body 11, a water tank assembly 12, a stirring cup assembly 13, and a juice receiving cup assembly 14. In some embodiments, the host 11 includes a main body 111 and a base 112 provided at one lateral side of a lower end of the main body 111. In some embodiments, the water tank assembly 12 and the juice receiving cup assembly 14 are disposed on laterally opposite sides of the main body 11. In some embodiments, the blending cup assembly 13 is assembled to the main body 11 and is in communication with the water tank assembly 12, such that water in the water tank assembly 12 can be delivered to the blending cup assembly 13, and the water can be mixed with the food material and then whipped. In some embodiments, the blending cup assembly 13 is detachably assembled to the main body portion 111 of the main body 11. In some embodiments, the juice cup assembly 14 is removably assembled to the base 112 of the host 11 for receiving the slurry flowing from the blender cup assembly 13.

In some embodiments, the household appliance 10 includes a main housing 113 and a communication assembly 20 disposed within the main housing 113. In some embodiments, the communication assembly 20 includes a main control board 114 and an NFC circuit board 115. The main housing 113 is a housing of the host 11, and the main control board 114 and the NFC circuit board 115 are disposed in the main housing 113. The NFC circuit board 115 is added in the home appliance 10, so that a function of communicating with an external NFC device can be realized, and functions of the home appliance 10 can be expanded. In some embodiments, the external NFC device 15 may comprise an NFC enabled mobile device, such as an NFC enabled cell phone, tablet, or the like.

In the related art, some home devices include an NFC module, and communicate with an external NFC device (e.g., a mobile phone with NFC function) through the NFC module. However, the NFC module of some household electrical appliances is far away from the inner wall of the housing, which results in the far distance from the NFC module to the outer surface of the housing, and may even exceed the sensing distance at which some external NFC apparatuses can successfully communicate, thereby making it difficult to connect the household electrical appliances and the external NFC apparatuses in a communication manner. In the present embodiment, the NFC circuit board 115 and the main control board 114 are disposed on different inner walls of the main housing 113. The NFC circuit board 115 is provided independently of the main control board 114. Because the NFC function has the requirement to the distance (generally within 10 cm), solitary NFC circuit board 115, small, be convenient for set up in main casing body 113, can need not very big space, be favorable to setting up more near main casing body 113, assemble the position near main casing body 113 in main casing body 113 more easily, NFC circuit board 115 is little from the distance of main casing body 113's surface, more easily with the response success of outside NFC equipment, be convenient for communication connection. Further, the NFC circuit board 115 and the main control board 114 are disposed on different inner walls of the main housing 113, and the inner walls of the main housing 113 may provide a sufficient space for mounting the NFC circuit board 115, so that the NFC circuit board 115 may be as close to the main housing 113 as possible, thereby facilitating communication connection. It should be noted that the NFC circuit board 115 of different external NFC devices 15 may be different, and the distance from the NFC circuit board 115 of different external NFC devices 15 to the outer surface of the device is different, so the sensing distance for successful communication between different external NFC devices 15 and the NFC chip 118 may be different. The NFC circuit board 115 is closer to the main housing 113 so that it can successfully communicate with more different external NFC devices 15. And main control panel 114 and NFC circuit board 115 all can accomplish the miniaturization moreover, can locate the different inner walls of main casing body 113 in a flexible way, and the space utilization of tame electric installation 10 is high, and the overall arrangement is compacter, and is small. The NFC circuit board 115 is more flexible in position, can be flexibly adjusted according to the internal space conditions of the actual home appliance 10, and can adapt to different home appliances 10.

In the embodiment shown in fig. 2, main housing 113 includes a top wall 1131 and a side wall 1132 connected to top wall 1131. The main control panel 114 is disposed on the top wall 1131 for user operation. The NFC circuit board 115 is disposed on the sidewall 1132, and in this embodiment, the NFC circuit board 115 is disposed on an inner surface of the sidewall 1132 of the main housing 113. The side walls 1132 have a large space for mounting the NFC circuit board 115 as close as possible to the main housing 113, thereby facilitating access of the external NFC device 15 for user communication. And locate main control board 114 in top wall 1131, NFC circuit board 115 locates lateral wall 1132, and NFC circuit board 115 can utilize the inner wall space of main casing body 113, can have enough big installation space to install NFC circuit board 115 to NFC circuit board 115 can be close to main casing body 113 as far as possible, so be convenient for external NFC device 15 to be close to, so as to be convenient for communication connection. And the main control board 114 and the NFC circuit board 115 are disposed on different inner walls, which facilitates assembly. In addition, NFC circuit board 115 sets up at lateral wall 1132, and the user of being convenient for is close to tame electric installation 10 with outside NFC device 15 and responds to, and convenient operation is handy. In some embodiments, the NFC circuit board 115 is disposed on the upper end of the sidewall 1132, so as to facilitate the user to hold the external NFC device 15 close to the household electrical appliance 10, which is relatively easy to operate. In some embodiments, the NFC circuit board 115 is disposed on the right side wall of the main housing 113, so that the user can access the external NFC device from the right side, and the operation is facilitated by the right hand. In other embodiments, the main control board 114 and the NFC circuit board 115 may be disposed at other locations of the main housing 113.

Fig. 3 is a schematic block circuit diagram of the communication module 20 shown in fig. 1. In some embodiments, the main control board 114 is provided with a main control circuit 116, and the main control circuit 116 is electrically connected with the power supply 16. The master control circuit 116 can control the operation of the home device 10. The NFC circuit board 115 is provided with an NFC circuit 117, and the NFC circuit 117 can communicate with an external NFC device 15.

In some embodiments, the NFC circuit 117 includes an NFC chip 118, an NFC antenna 119 connected to the NFC chip 118, and an anti-static diode 21 connected to the NFC chip 118. The NFC chip 118 includes a communication port 22, and the NFC chip 118 is electrically connected to the host circuit 116 through the communication port 22 and is communicatively connected to the external NFC device 15 through the NFC antenna 119. The NFC circuit 117 further includes a ground GND, and the anti-static diode 21 is electrically connected between the communication port 22 and the ground GND. When the external NFC device 15 is located in the sensing region of the NFC antenna 119, an NFC connection may be established between the NFC antenna 119 and the NFC chip 118, and then near field communication data interaction may be performed with the NFC chip 118. So set up, NFC circuit board 115 and main control board 114 independent setting, NFC circuit board 115 can the modularization, the flexibility is higher, prevent that electrostatic diode 21 electricity connects between communication port 22 and earthing terminal, can prevent that communication port 22 department of NFC chip 118 from appearing abnormal signal such as static and damaging NFC chip 118, make NFC circuit board 115's antistatic performance strong, thereby make NFC circuit board 115 can the different main control board 114 of adaptation, in different applications, connecting wire length between NFC circuit board 115 and the main control board 114 is probably different, however NFC circuit board 115 all can be antistatic well, the different connecting wire of adaptation length, thereby NFC circuit board 115's adaptation degree is higher, therefore, the commonality is strong, wide application scope.

In some embodiments, NFC antenna 119 includes a mutual coil (as shown in fig. 4) that is arranged in a spiral, coiled configuration, which may enhance the received or transmitted signal. In some embodiments, the mutual coil extends in the same direction as the side wall 1132 of the main housing 113. The mutual inductor of the NFC antenna is arranged in parallel with the side wall 1132 of the main housing 113, so that the mutual inductor of the NFC antenna and the external NFC device 15 can send or receive signals more stably.

In some embodiments, NFC chip 118 comprises an active NFC chip. In some embodiments, the active NFC chip supports read and write operations and is more adaptable. For example, a user may write control information for home device 10 into NFC chip 118 through external NFC device 15, so that master circuit 116 may read data of the control information through NFC chip 118 to control home device 10 according to the control information. In other embodiments, NFC chip 118 comprises a dual interface passive NFC chip. A dual interface passive NFC chip may refer to an NFC chip that does not need to be powered.

In some embodiments, NFC chip 118 is electrically connected to master circuitry 116 through an SPI bus or an IIC bus. The connection between the NFC chip 118 and the master control circuit 116 is flexible. The appropriate connection mode can be selected according to actual conditions. For example, when the SPI bus is selected to connect the NFC chip 118 and the master circuit 116, data transmission between the NFC chip 118 and the master circuit 116 can be performed at a higher speed. For another example, when the IIC bus may be selected to connect the NFC chip 118 and the master circuit 116, the occupied ports of the NFC chip 118 and the master circuit 116 may be fewer. In some embodiments, the SPI bus may enable faster transmission speeds between the NFC chip 118 and the master circuitry 116. In some embodiments, the IIC bus requires a smaller number of ports. In this embodiment, the NFC chip 118 communicates with the host circuit 116 by using the IIC bus.

Fig. 4 is a circuit diagram of the NFC circuit 117 of the NFC circuit board 115 shown in fig. 3. The NFC chip 118 includes a first antenna connection port IN1, a second antenna connection port IN 2. The communication port 22 includes a control terminal SCL, a data terminal SDA, a chip select terminal CSN, an output terminal WIP _ FD, a power terminal VCC1, and a ground terminal GND. The NFC circuit 117 includes a power supply terminal VCC2 and a ground terminal GND. The power supply terminal VCC1 of the NFC chip 118 is electrically connected to the power supply terminal VCC 2. The control terminal SCL, the data terminal SDA, the chip select terminal CSN, and the output terminal WIP _ FD are electrically connected to the main control circuit 116. The NFC antenna 119 includes a first antenna terminal 1191 and a second antenna terminal 1192, the first antenna terminal 1191 is electrically connected to the first antenna connection port IN1, and the second antenna terminal 1192 is electrically connected to the second antenna connection port IN 2. The NFC antenna 119 transmits the signal to the NFC chip 118 through the first antenna terminal 1191 and the second antenna terminal 1192. The NFC chip 118 receives a signal from the NFC antenna 119 through the first antenna connection port IN1 and the second antenna connection port IN 2. The NFC chip 118 sends a control signal through the control terminal SCL. The NFC chip 118 sends or receives data through the data terminal SDA. The chip select terminal CSN of the NFC chip 118 is active at a low level, and the NFC chip 118 starts communication only at the low level. The NFC chip 118 outputs a signal to the master circuit 116 via the output WIP _ FD to transmit a signal indicating whether an external NFC device is communicating with the NFC chip 118.

In some embodiments, the esd protection diode 21 includes a first esd protection diode D1, and the first esd protection diode D1 is electrically connected between the power supply terminal VCC2 and the ground terminal GND. The first anti-static diode D1 can prevent the NFC chip 118 from being damaged by abnormal signals such as static electricity occurring at the power supply terminal VCC 2. In some embodiments, the esd protection diode 21 includes a second esd protection diode D2, and the second esd protection diode D2 is electrically connected between the control terminal SCL and the ground terminal GND. The second anti-static diode D2 can prevent the NFC chip 118 from being damaged by abnormal signals such as static electricity occurring at the control terminal SCL. In some embodiments, the esd protection diode 21 includes a third esd protection diode D3, and the third esd protection diode D3 is electrically connected between the data terminal SDA and the ground terminal GND. The third static-electricity prevention diode D3 can prevent the NFC chip 118 from being damaged by abnormal signals such as static electricity occurring at the data terminal SDA. In some embodiments, the esd protection diode 21 includes a fourth esd protection diode D4, and the fourth esd protection diode D4 is electrically connected between the chip select terminal CSN and the ground terminal GND. The fourth anti-static diode D4 can prevent the NFC chip 118 from being damaged by abnormal signals such as static electricity at the chip select terminal CSN. In some embodiments, the electrostatic prevention diode 21 includes a fifth electrostatic prevention diode D5. The fifth anti-static diode D5 is electrically connected between the output terminal WIP _ FD and the ground terminal GND. The fifth anti-static diode D5 can prevent the NFC chip 118 from being damaged by abnormal signals such as static electricity occurring at the output terminal WIP _ FD.

In some embodiments, the NFC circuit 117 further includes a resistance 23, and one end of the resistance 23 is electrically connected to the communication port 22, and the other end is electrically connected to the ground GND or the power supply terminal VCC 2. The anti-interference resistor 23 can be set to keep the level stable, which is beneficial for the transmission between the NFC chip 118 and the main control board 114 over a long distance. In the application of difference, the length of the interconnecting link between NFC circuit board 115 and the main control board 114 is probably different, sets up anti jamming resistor 23 and can effectively reduce or eliminate long distance transmission's interfering signal, consequently to short distance and long distance signal transmission, can all guarantee the accuracy of signal reliable, so can be applicable to in the application of difference, the commonality is high, and application scope is wider. And whether master control circuit 116 on main control board 114 sets up anti-interference resistance, NFC circuit board 115 all can effectively be anti-jamming to can the different main control boards 114 of adaptation, the commonality is high, and accommodation is wide.

In some embodiments, the immunity resistor 23 includes a first pull-up resistor R4, and the first pull-up resistor R4 is electrically connected between the control terminal SCL and the power supply terminal VCC 2. The first pull-up resistor R4 is used for pulling up the voltage of the control terminal SCL to the high level of the power supply terminal VCC2, so as to ensure the stability of the high level. In some embodiments, the immunity resistor 23 includes a second pull-up resistor R6, and the second pull-up resistor R6 is electrically connected to the data terminal SDA and the power terminal VCC 2. The second pull-up resistor R6 is used to pull up the voltage at the data terminal SDA to the high level at the power supply terminal VCC2, so as to ensure the stability of the high level. In some embodiments, the immunity resistor 23 includes a third pull-up resistor R5, and the third pull-up resistor R5 is electrically connected to the output terminal WIP _ FD and the power supply terminal VCC 2. The third pull-up resistor R5 is used for pulling up the voltage of the output terminal WIP _ FD to the high level of the power supply terminal VCC2, so as to ensure the stability of the high level.

In some embodiments, since the chip select signal of the chip select terminal CSN is active low, the NFC chip 118 starts communication only when the chip select signal is active low. Therefore, in some embodiments, the immunity resistor 23 includes a pull-down resistor R8 electrically connected between the chip select terminal CSN and the ground terminal GND. The pull-down resistor R8 is used to pull down the voltage of the chip select terminal CSN to the low level of the ground terminal GND, so as to ensure that the chip select terminal CSN is at the low level even if the port of the main control circuit 116 connected to the chip select terminal CSN is floating or in a high impedance state, and the NFC chip 118 can still work and normally communicate. Meanwhile, the resistance of the pull-down resistor R8 is set to be much larger than the resistance of the third current-limiting resistor R7, so that when the chip selection signal of the chip selection terminal CSN set by the control terminal SCL is at a high level, the NFC chip 118 may also detect the high level and stop communication. In this embodiment, for example, the pull-down resistor R8 may be set to 4.7K Ω. The third current limiting resistor R7 may be set to a resistance of 100 Ω. Other resistance values can be set for the pull-down resistor R8 and the third current limiting resistor R7, which are not limited in this application.

In some embodiments, the NFC circuit 117 includes at least one filter capacitor 24 electrically connected between the first antenna terminal 1191 and the second antenna terminal 1192. The filter capacitor 24 functions as a filter to ensure more accurate data transmission between the NFC antenna 119 and the NFC chip 118. In some embodiments, one or more filtering capacitors 24 may be provided. In the present embodiment, two filter capacitors 24 may be provided, but not limited thereto. In the present embodiment, the filter capacitor 24 includes a first filter capacitor C2 and a second filter capacitor C4, which are electrically connected between the first antenna terminal 1191 and the second antenna terminal 1192. The first filtering capacitor C2 and the second filtering capacitor C4 play a role in filtering, so that data transmitted between the NFC antenna 119 and the NFC chip 118 are more accurate. In some embodiments, the filter capacitor 24 further includes a second filter capacitor C3, and the second filter capacitor C3 is electrically connected between the power supply terminal VCC1 and the power supply terminal VCC 2. The second filter capacitor C3 plays a role in filtering, and ensures that the power supply terminal VCC2 supplies power to the power supply terminal VCC1 stably.

In some embodiments, the NFC circuit 117 includes at least one power supply capacitor 25 electrically connected between the power supply terminal VCC1 and the power supply terminal VCC 2. The power supply capacitor 25 can store energy and can supply power to the NFC chip 118, so that the operating stability of the NFC chip 118 is better. In some embodiments, one or more supply capacitors 25 may be provided. In the present embodiment, the power supply capacitor 25 includes a first power supply capacitor C1, and the first power supply capacitor C1 is electrically connected between the power supply terminal VCC1 and the power supply terminal VCC 2. The first power supply capacitor C1 may store energy and may supply power to the NFC chip 118, so that the NFC chip 118 has better operation stability.

In some embodiments, the NFC circuit 117 includes a current limiting resistor 26 connected to the NFC chip 118. The current limiting resistor is used to prevent static electricity or external large current from damaging the NFC chip 118. In some embodiments, the current limiting resistor 26 includes a first current limiting resistor R1, and the first current limiting resistor R1 is electrically connected between the control terminal SCL and the ground terminal GND. The first current limiting resistor R1 is used to prevent static electricity or external large current from damaging the NFC chip 118. In some embodiments, the current limiting resistor 26 includes a second current limiting resistor R3, and the second current limiting resistor R3 is electrically connected between the data terminal SDA and the ground terminal GND. The second current limiting resistor R3 is used to prevent static electricity or external large current from damaging the NFC chip 118. In some embodiments, the current limiting resistor 26 includes a third current limiting resistor R7, and the third current limiting resistor R7 is electrically connected between the chip select terminal CSN and the ground terminal GND. The third current limiting resistor R7 is used to prevent static electricity or external large current from damaging the NFC chip 118. In some embodiments, the current limiting resistor 26 includes a fourth current limiting resistor R2, and the fourth current limiting resistor R2 is electrically connected between the output terminal WIP _ FD and the ground terminal GND. The fourth current limiting resistor R2 is used to prevent static electricity or external large current from damaging the NFC chip 118.

In some embodiments, the NFC chip 118, the NFC antenna 119, the anti-static diode 21, the communication port 22, the anti-interference resistor 23, the filtering capacitor 24, the power supply capacitor 25, and the current limiting resistor 26 may be integrated on one circuit board, which is favorable for modularization and high in integration level.

In some embodiments, a memory circuit and an oscillation circuit are integrated within the NFC chip 118. The NFC chip 118 is integrated with a memory circuit and an oscillation circuit, so that integration is high, which is advantageous to integration. The oscillating circuit may be a crystal oscillator circuit. The crystal oscillator circuit can output a clock signal circuit, and the signal circuit output by the crystal oscillator circuit is stable all the time.

In some embodiments, the NFC circuit board 115 and the main control board 114 are pluggable. In some embodiments, the NFC circuit board 115 and the main control board 114 are connected by the connector 30. The connector 30 is used to connect the NFC chip 118 and the master circuit 116. Master control circuit 116 and NFC circuit 117 set up in the circuit board of difference, connect through connector 30, and more the modularization can set up the position of NFC chip 118 and the position of master control circuit 116 according to actual conditions, and the product scope of being suitable for is wider. When one of the master control circuit 116 and the NFC circuit 117 needs to be maintained, replaced or upgraded, the other one does not need to be replaced, the connector 30 can facilitate the disassembly and assembly of the master control circuit 116 and the NFC circuit 117, thereby facilitating the replacement of the master control circuit 116 or the NFC circuit 117, facilitating the upgrade of products, and reducing the cost of maintenance, replacement or upgrade.

In some embodiments, connector 30 includes one of a UART serial connector, an SPI interface connector, and an IIC interface connector. The UART serial connector and the IIC interface connector require fewer ports, and the SPI interface connector can enable the data transmission speed to be higher. The appropriate connector may be selected based on actual needs (e.g., speed requirements for transferring data, actual port numbers of the NFC chip 118 and the host circuitry 116, etc.). The circuit design is more flexible.

In the present embodiment, the external NFC device 15 includes a handset supporting an NFC function. The NFC chip 118 includes a storage unit. The storage unit can store the instructions issued by the mobile phone. The main control board 114 can read the instruction from the storage unit. The instructions may be recipe instructions. The memory unit may also store other data that the main control board 114 transmits to the NFC chip 118. For example, it is which recipes the food processor has executed, and how many times each recipe has been executed, which facilitates the background to count the usage frequency of recipes. So set up, through increasing NFC circuit board 115, can extend the function of the host computer 11 of cooking machine. For example, the recipe function of the food processor can be expanded or updated, and the application range is wider.

In practical application, the main control board 114 and the NFC circuit board 115 are powered on, and the main control board 114 communicates with the NFC chip 118 at regular time to detect whether the NFC chip 118 has an instruction (for example, a recipe instruction) issued by a mobile phone in real time, so as to determine whether the mobile phone is close to the NFC chip 118. If no recipe command is detected, the main control panel 114 continues to perform its native function. If the transmitted recipe command is detected, it is further determined whether the mobile phone leaves the NFC chip 118 (i.e., whether the mobile phone is in communication with the NFC chip 118 is determined). After the mobile phone and the NFC chip 118 complete communication, the main control board 114 starts to read data from the storage unit of the NFC chip 118. By such arrangement, the data in the storage unit can be prevented from being operated by the mobile phone and the main control board 114 at the same time, so that data errors are avoided. Next, the main control board 114 verifies and analyzes the data read from the storage unit of the NFC chip 118. For example, whether the data format is correct is checked, and how to execute the transmitted recipe command is specified. After each function is executed, the main control board 114 updates the recipe in the storage unit of the NFC chip 118, and it is ensured that the latest data is obtained each time the mobile phone approaches the communication.

Further, when the mobile phone interacts with the food processor, a suitable recipe can be selected on the mobile phone, and the recipe is clicked and issued to the storage unit of the NFC chip 118, and is close to the installation position of the NFC chip 118, so that the corresponding recipe is stored in the storage unit of the NFC chip 118. The main control board 114 then reads the recipe from the NFC chip 118 and executes the new recipe instructions after verification. Therefore, real-time performance and accuracy of data interaction are guaranteed. The user experience is enhanced.

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. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

It will be understood that the present application is not limited to the precise arrangements that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (10)

1. A communications assembly, comprising:

a main control board (114) provided with a main control circuit (116);

the NFC circuit board (115) is connected with the main control board (114), an NFC circuit (117) is arranged on the NFC circuit board (115), and the NFC circuit (117) comprises an NFC chip (118), an NFC antenna (119) connected with the NFC chip (118) and an anti-static diode (21) connected with the NFC chip (118); the NFC chip (118) comprises a communication port (22), the NFC chip (118) is electrically connected with the master control circuit (116) through the communication port (22) and is in communication connection with external NFC equipment (15) through the NFC antenna (119), the NFC circuit (117) further comprises a grounding end, and the anti-static diode (21) is electrically connected between the communication port (22) and the grounding end.

2. The communication assembly according to claim 1, wherein the NFC circuit (117) comprises a power supply terminal, and the anti-static diode (21) comprises a first anti-static diode electrically connected between the power supply terminal and the ground terminal; and/or

The communication port (22) comprises a control end, and the anti-static diode (21) comprises a second anti-static diode which is electrically connected between the control end and the grounding end; and/or

The communication port (22) comprises a data terminal, and the anti-static diode (21) comprises a third anti-static diode which is electrically connected between the data terminal and the grounding terminal; and/or

The communication port (22) comprises a chip selection end, and the anti-static diode (21) comprises a fourth anti-static diode which is electrically connected between the chip selection end and the grounding end; and/or

The communication port (22) comprises an output end, and the anti-static diode (21) comprises a fifth anti-static diode which is electrically connected between the output end and the grounding end.

3. The communication assembly according to claim 1, wherein the NFC circuit (117) further comprises a power supply terminal and an anti-interference resistor (23), wherein one end of the anti-interference resistor (23) is electrically connected to the communication port (22) and the other end is electrically connected to the ground terminal or the power supply terminal.

4. A communication assembly according to claim 3, wherein the communication port (22) comprises a power supply terminal, and the anti-tamper resistor (23) comprises a first pull-up resistor electrically connected between the control terminal and the power supply terminal; and/or

The communication port (22) comprises a data end, and the anti-interference resistor (23) comprises a second pull-up resistor which is electrically connected between the data end and the power supply end; and/or

The communication port (22) comprises an output end, the anti-interference resistor (23) comprises a third pull-up resistor, and the third pull-up resistor is electrically connected between the output end and the power supply end; and/or

The communication port (22) comprises a chip selection end, and the anti-interference resistor (23) comprises a pull-down resistor electrically connected between the chip selection end and the grounding end.

5. The communication assembly according to claim 1, wherein the NFC chip (118) comprises a first antenna connection port and a second antenna connection port; the NFC antenna (119) comprises a first antenna end and a second antenna end, the first antenna end is electrically connected with the first antenna connection port, and the second antenna end is electrically connected with the second antenna connection port; the NFC circuit (117) comprises at least one filter capacitor (24) electrically connected between the first antenna terminal and the second antenna terminal; and/or

The NFC circuit (117) comprises a power supply terminal; the NFC chip (118) comprises a power supply end which is electrically connected with the power supply end; the NFC circuit (117) comprises at least one supply capacitor (25) electrically connected between the power supply terminal and the supply terminal.

6. The communication assembly of claim 1, wherein the communication port (22) comprises a control terminal, and the NFC circuit (117) comprises a first current limiting resistor electrically connected between the control terminal and the ground terminal; and/or

The communication port (22) comprises a data terminal, and the NFC circuit (117) comprises a second current-limiting resistor electrically connected between the data terminal and the ground terminal; and/or

The communication port (22) comprises a chip selection end, and the NFC circuit (117) comprises a third current limiting resistor electrically connected between the chip selection end and the grounding end; and/or

The communication port (22) comprises an output terminal, and the NFC circuit (117) comprises a fourth current limiting resistor electrically connected between the output terminal and the ground terminal.

7. The communication assembly according to claim 1, wherein a memory circuit and an oscillation circuit are integrated within the NFC chip (118); and/or

The NFC chip (118) comprises an active NFC chip; and/or

The NFC chip (118) is electrically connected with the main control circuit (116) through an SPI bus or an IIC bus.

8. An electrical household appliance, comprising:

a main housing (113); and

the communication assembly of any of the preceding claims 1 to 7, which is provided within the main housing (113).

9. The household appliance according to claim 8, wherein the NFC circuit board (115) of the communication assembly and the main control board (114) of the communication assembly are provided on different inner walls of the main housing (113).

10. The household appliance according to claim 9, wherein the main housing (113) comprises a top wall (1131) and a side wall (1132) connected to the top wall (1131), the main control board (114) is disposed on the top wall (1131), and the NFC circuit board (115) is disposed on the side wall (1132).

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