CN217285530U - Food processer circuit and food processer - Google Patents

Abstract

The utility model provides a cooking machine circuit and cooking machine. This cooking machine circuit includes switching power supply, controller and load. The switching power supply is used for being connected to an external power supply and comprises a power supply chip, the power supply chip is used for generating negative first voltage, and the power supply chip is provided with an output end. The controller comprises a power supply end, a first port and a second port. The load includes a first load less than or equal to the first voltage and a second load greater than the first voltage. The power supply end of the controller is connected to the output end of the power supply chip, the first port of the controller directly drives and controls the first load, and the second port of the controller drives and controls the second load through the switch tube. The utility model discloses a cooking machine circuit and cooking machine can save the use of some switch tubes, reduce cost.

Description

Food processer circuit and food processer

Technical Field

The utility model relates to the technical field of household appliances, especially, relate to a cooking machine circuit and cooking machine.

Background

With the increasing living standard of people, many different types of food processors appear on the market. The functions of the food processor mainly include, but are not limited to, functions of making soybean milk, squeezing fruit juice, making rice paste, mincing meat, shaving ice, making coffee and/or blending facial masks and the like. The food processor can comprise a soybean milk machine, a stirrer, a wall breaking machine or other machines for crushing and stirring food materials.

The working circuit of the food processor comprises a switching power supply and a controller, wherein the switching power supply is used for converting an external alternating current power supply into a direct current larger than 5V, and the direct current of 5V is generated after the voltage of the switching power supply is reduced by a power supply chip to supply power to the controller. However, the controller has a weak output current capability, and a transistor must be added to increase the driving capability when controlling the load, thereby resulting in higher cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cooking machine circuit and cooking machine can save the use of some switch tubes, reduce cost.

An aspect of the utility model provides a material processing machine circuit. The food processer circuit comprises a switching power supply, a controller and a load. The switching power supply is used for being connected to an external power supply and comprises a power supply chip, the power supply chip is used for generating a negative first voltage, and the power supply chip is provided with an output end. The controller comprises a power supply end, a first port and a second port. The load includes a first load less than or equal to the first voltage and a second load greater than the first voltage. The power supply end of the controller is connected to the output end of the power supply chip, the first port of the controller directly drives and controls the first load, and the second port of the controller drives and controls the second load through the switch tube.

The utility model discloses a cooking machine circuit produces the first voltage of burden through power chip and gives the controller power supply to, can be with irritating the electric current ability direct drive of controller when control is less than the first load of first voltage, irritate the electric current ability and generally than stronger, thereby can save the switch tube, reduce cost.

Further, the switching power supply further comprises a power supply conversion module for converting the alternating voltage of the external power supply into negative second voltage, the power supply chip further comprises an input end and a grounding end, the input end of the power supply chip is connected to the live wire of the external power supply through the power supply conversion module and used for receiving the negative second voltage, and the grounding end of the power supply chip is used for being connected to the zero line of the external power supply. Thus, the power supply chip can output a negative voltage.

Further, the first load comprises a silicon controlled rectifier for driving a load switch circuit, the silicon controlled rectifier is provided with a control pin, a first pin and a second pin, the first port of the controller comprises a driving port, the driving port of the controller directly controls the control pin of the silicon controlled rectifier, the first pin of the silicon controlled rectifier is connected to a zero line of an external power supply, and the second pin of the silicon controlled rectifier is connected with the load switch circuit. Therefore, the driving port of the controller can directly control the control pin of the controllable silicon without being connected with a switching tube for control, the controllable silicon is convenient to control, peripheral circuits are saved, the cost can be reduced, and the circuit is simple. In addition, the drive port of the controller directly controls the controllable silicon, and the reliability is high.

Furthermore, a control pin of the controllable silicon is connected to a driving port of the controller through a first current limiting resistor. The first current limiting resistor may function to limit current.

Further, the second load comprises a relay selectively connecting the motor and the heating assembly, the second port of the controller comprises a control port, the switch tube comprises a first triode, and the control port of the controller controls the relay through the first triode. For a relay with a voltage higher than the first voltage, the driving capability of the control port of the controller can be increased through the first triode.

Further, the cooking machine circuit still includes bowl cover detection circuitry, the control port of controller with bowl cover detection circuitry establishes ties the base of first triode, the collecting electrode of first triode is connected the relay, the projecting pole of first triode is connected external power source's zero line. The load is controlled by the double series connection of the control port of the controller and the cup cover detection circuit, and the device is safe and reliable. And the control port of the controller and the cup cover detection circuit are connected in series with the base electrode of the first triode, and the required control current is low, so that the controller is easy to select types and low in cost.

Further, the cup cover detection circuit comprises a photoelectric coupler, the input side of the photoelectric coupler is used for receiving cup cover control signals covered by the cup cover, and the output side of the photoelectric coupler and the control port of the controller are connected in series at the base of the first triode. Therefore, the base electrode of the first triode can be dually controlled by the photoelectric coupler and the control port of the controller.

Furthermore, the controller also comprises a cup cover detection port connected with the output end of the photoelectric coupler, and a forward diode is arranged between the cup cover detection port of the controller and the control port. The forward diode can play the effect of one-way conduction reverse blocking to, can avoid in the use of cooking machine, under the control port output high level's of controller the condition, if the user opens the bowl cover suddenly and lead to the bowl cover detection port of controller to detect the condition appearance of low level.

Furthermore, the first load comprises a buzzer, the first port of the controller comprises a music port, and the music port of the controller directly drives and controls the buzzer, so that a triode is omitted, and the cost is reduced; or, the second load includes a buzzer, the first port of the controller includes a music port, the switching tube includes a second triode, the music port of the controller passes through the second triode to drive and control the buzzer, so that the driving capability of the music port of the controller is increased through the second triode.

Another aspect of the utility model provides a cooking machine. The cooking machine includes the host computer, the mountable in cup body component on the host computer and can the lid fit cup cover component on the cup body component. The host computer comprises the food processor circuit according to the above embodiments.

The utility model discloses the cooking machine of one or more embodiments can save the use of some switch tubes, simplifies peripheral circuit, reduce cost.

The utility model discloses the cooking machine of one or more embodiments can reduce the control current of controller, and the lectotype of controller is easy, and is with low costs, and control reliability is high, and product property can be good.

Drawings

Fig. 1 is a schematic perspective view of a food processor according to an embodiment of the present invention;

fig. 2 is a simplified schematic diagram of a food processor circuit according to an embodiment of the present invention;

fig. 3 is a schematic circuit diagram of a switching power supply according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a controller according to an embodiment of the present invention;

fig. 5 is a circuit schematic diagram of a load control circuit according to an embodiment of the present invention;

fig. 6 is a driving circuit diagram of a buzzer according to an embodiment of the present invention;

fig. 7 is a driving circuit diagram of a buzzer according to another embodiment of the present invention.

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 invention. Rather, they are merely examples of apparatus consistent with certain aspects of the invention, 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 invention. 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. As used in the specification 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.

It should be noted that, in order to better embody the innovative features of the present invention, only the structural features closely related to the creation point of the present invention are shown and described in the drawings and the description thereof, and other less related structural features or other existing structural features are omitted or outlined. However, this does not mean that the food processor and the food processor circuit thereof of the present invention do not necessarily include these other structural features, and the food processor circuit thereof of the present invention may include structural features necessary for realizing the basic functions of the food processor.

The utility model provides a cooking machine circuit and have cooking machine of this cooking machine circuit. The following will explain the cooking cup and the cooking machine in detail with reference to the attached drawings. The features of the following examples and embodiments may be combined with each other without conflict.

Fig. 1 shows a perspective view of a food processor 100 according to an embodiment of the present invention. The food processor 100 may be a blender, a wall breaking machine, a juicer, or the like. As shown in fig. 1, the food processor 100 according to an embodiment of the present invention includes a main body 110, a cup body assembly 120, and a cup lid assembly 130. In one embodiment, the host 110 is in the form of a stand. The host 110 can provide power, control and drive the food processor 100 to work, and can interact with the user. A motor (not shown) is provided in the main body 110.

The cup assembly 120 may be mounted to the host 110. In one embodiment, the cup assembly 120 is removably mounted to the host 110. The cup body assembly 120 can contain food materials, and the food materials can be stirred, heated and/or vacuumized in the cup body assembly 120. A stirring blade assembly (not shown) can be assembled in the cup body assembly 120, the stirring blade assembly is connected to a rotating shaft of a motor, and the motor can drive the stirring blade assembly to rotate so as to stir the food material. The cup assembly 120 includes a cup 121 and a cup handle 122 fixed to one side of the cup 121. In one embodiment, the cup body assembly 120 includes a heating assembly (not shown) assembled to the bottom of the cup body 121, such as a heating plate provided with a heating tube or an electromagnetic heating plate, which can heat the food material. The stirring blade assembly may be assembled to the heating assembly.

The lid assembly 130 may be closed over the bowl assembly 120. When the food processor 100 is in operation, the lid assembly 130 can be covered on the cup body assembly 120. After the food processor 100 is finished, the lid assembly 130 can be removed from the cup body assembly 120. In some embodiments, the lid assembly 130 can be opened to add food material during the cooking process of the food processor 100. Lid assembly 130 includes lid handle 132. When the lid assembly 130 is closed on the cup assembly 120, the lid handle 132 abuts the cup handle 122 and the lid assembly 130 is in place. In one embodiment, the lid assembly 130 is removably assembled to the bowl assembly 120 and is separable from the bowl assembly 120. In another embodiment, the lid assembly 130 is hingedly connected to the bowl assembly 120.

In one embodiment, the food processor 100 further comprises an exhaust cover 140 assembled on the lid assembly 130, and the steam in the cup 121 can be exhausted from the gap between the exhaust cover 140 and the lid assembly 130.

Fig. 2 discloses a simplified schematic diagram of a food processor circuit 200 according to an embodiment of the present invention. As shown in fig. 2, the food processor circuit 200 according to an embodiment of the present invention includes a switching power supply 10, a controller 20, and a load. The switching power supply 10 may be used to power the controller 20, and the controller 20 may be used to control a load. The Controller 20 may be, for example, a single chip Microcomputer (MCU), and the Controller 20 includes a power supply terminal, a first port, and a second port.

The load includes a first load 30 less than or equal to a first voltage (e.g., 5V) and a second load 40 greater than the first voltage (e.g., 5V).

Wherein, the power supply terminal of the controller 20 is connected to the output terminal Vout of the power chip 11. The first port of the controller 20 may be used to directly drive the first load 30, which is controlled to be below 5V, by sinking current capability. The second port of the controller 20 may drive and control the second load 40 higher than 5V through a switching tube, and the driving capability may be increased through the switching tube when controlling the second load 40 higher than 5V.

The utility model discloses a cooking machine circuit 200 produces the first voltage of burden through power chip 11 and gives the power supply of controller 20 to, can be with the direct drive of the electric current ability of irritating of controller 20 when controlling some first loads 30 that are less than first voltage (for example 5V), it is generally stronger to irritate the electric current ability, thereby can save switch tube, reduce cost.

Fig. 3 shows a circuit diagram of the switching power supply 10 according to an embodiment of the present invention. Referring to fig. 2 and 3 in combination, the switching power supply 10 may be used to connect to an external power source, such as a 220V mains power supply, for converting ac power of the mains power supply into dc power. The switching power supply 10 includes a power supply chip 11, the power supply chip 11 is configured to generate a negative first voltage, for example, -5V, the power supply chip 11 has an output terminal Vout, and the generated negative first voltage, for example, -5V, is output via the output terminal Vout of the power supply chip 11.

The switching power supply 10 also includes a power conversion module 12. The power conversion module 12 may be used to convert the ac voltage of the external power source to a negative second voltage, such as a voltage of-9V. The power chip 11 further has an input terminal Vin and a ground terminal GND, wherein the input terminal Vin of the power chip 11 is connected to the live line L of the external power source through the power conversion module 12 for receiving the negative second voltage, and the ground terminal GND of the power chip 11 can be used for being connected to the zero line N of the external power source. Thus, the power supply chip 11 can output a negative voltage.

Fig. 4 discloses a schematic diagram of the controller 20 according to an embodiment of the present invention. As shown in fig. 4, the controller 20 according to an embodiment of the present invention includes a plurality of ports, which may include, but are not limited to, a drive port Triac, a control port RLY, a lid detection port CUP, a Music port Music, etc.

Fig. 5 discloses a circuit diagram of a load control circuit according to an embodiment of the present invention. Referring collectively to fig. 4 and 5, in some embodiments, a first load 30, which is less than or equal to a first voltage (e.g., 5V), includes a thyristor 31 for driving a load switching circuit, which in one embodiment may include a relay 41, for example. The thyristor 31 has a control pin G, a first pin and a second pin. The first port of the controller 20 includes a driving port Triac, and the driving port Triac of the controller 20 may directly control the control pin G of the thyristor 31. A first pin of the controlled silicon 31 is connected to a zero line N of an external power supply, and a second pin of the controlled silicon 31 is connected with a load switch circuit.

For example, for a thyristor 31 powered by 5V, the driving port Triac of the controller 20 may directly control the control pin G of the thyristor 31, when the driving port Triac of the controller 20 outputs a low level, the zero line N of the external power source may directly flow to-5V through the control pin G of the thyristor 31, the driving port Triac of the controller 20 is pulled down to-5V, and the thyristor 31 is turned on. When the drive port Triac of the controller 20 is pulled high to a zero level, the thyristor 31 is non-conductive.

Therefore, for the first load 30 with the voltage less than or equal to the first voltage, the thyristor 31 powered by 5V, for example, can be directly controlled by the controller 20 without being connected with a switching tube for control, so that the control of the thyristor 31 is convenient, the peripheral circuit is saved, the cost can be reduced, and the circuit is simple. In addition, the drive port Triac of the controller 20 directly controls the thyristor 31, and the reliability is high.

In one embodiment, the control pin G of the thyristor 31 may be connected to the driving port Triac of the controller 20 through the first current limiting resistor 311. The first current limiting resistor 311 may function to limit current. In addition, the first current limiting resistor 311 may include, for example, one or more resistors connected in series in consideration of the withstand voltage capability of the resistors.

With continued reference to fig. 4 and 5, in some embodiments, the second load 40 at a voltage greater than the first voltage includes a relay 41 selectively connectable to the motor and the heating assembly, the second port of the controller 20 includes a control port RLY, the switching tube includes a first transistor 411, and the control port RLY of the controller 20 may control the relay 41 via the first transistor 411.

The relay 41 is powered by 9V, for example, and the driving capability of the controller 20 can be increased by the first transistor 411.

The food processer circuit 200 of the present invention can further comprise a cup cover detection circuit 50. The control port RLY of controller 20 and bowl cover detection circuit 50 are established ties in the base B of first triode 411, and relay 41 is connected to the collecting electrode C of first triode 411, and the zero line N of external power source is connected to the projecting pole E of first triode 411.

The food processor circuit 200 of the utility model is safe and reliable by the control port RLY of the controller 20 and the double series control load of the cup cover detection circuit 50. Moreover, the control port RLY of the controller 20 and the cup cover detection circuit 50 are connected in series with the base B of the first triode 411, and the required control current is low, so that the model selection of the controller 20 is easy and the cost is low.

In one embodiment, lid detection circuit 50 may include an opto-coupler 60, opto-coupler 60 including an input side light emitting diode and an output side photo-transistor. The input side of the photoelectric coupler 60 can be used to receive a cup cover control signal for cup cover covering, and the output side of the photoelectric coupler 60 and the control port RLY of the controller 20 are connected in series to the base B of the first triode 411. Thus, the base B of the first transistor 411 can be dually controlled by the photocoupler 60 and the control port RLY of the controller 20.

As shown in fig. 4, the CUP lid detection port CUP of the controller 20 is connected to the output terminal Vout of the photocoupler 60. A forward diode 70 is arranged between the CUP lid detection port CUP and the control port RLY of the controller 20, and the forward diode 70 can play a role in unidirectional conduction and reverse cut-off. Therefore, the situation that the CUP lid detection port CUP of the controller 20 cannot detect the low level if the user suddenly opens the CUP lid under the condition that the control port RLY of the controller 20 outputs the high level in the using process of the food processor 100 can be avoided.

Optionally, a second current limiting resistor 71 is further disposed between lid detect port CUP and control port RLY of controller 20. The second current limiting resistor 71 may function to limit current.

In the food processor circuit 200 of the present invention, the load may further include a buzzer, and the buzzer may select the first voltage (e.g., 5V) or the second voltage (e.g., 9V) according to the sound requirement.

Fig. 6 shows a driving circuit diagram of the buzzer 32 according to an embodiment of the present invention. Referring to fig. 4 and fig. 6 in combination, in other embodiments, for the buzzer 32 powered by the first voltage (e.g. 5V), the first load 30 of the present invention may further include the buzzer 32, the first port of the controller 20 further includes a Music port Music, and the Music port Music of the controller 20 may directly drive and control the buzzer 32 without being connected to a triode, so as to reduce the cost.

Fig. 7 shows a driving circuit diagram of the buzzer 42 according to another embodiment of the present invention. Referring to fig. 4 and fig. 7 in combination, in further embodiments, for the buzzer 42 powered by the second voltage (e.g. 9V), the second load 40 of the present invention may include the buzzer 42, the first port of the controller 20 includes a Music port Music, the switch tube further includes a second transistor 421, and the Music port Music of the controller 20 may drive and control the buzzer 42 through the second transistor 421, so as to increase the driving capability of the Music port Music of the controller 20 through the second transistor 421.

The utility model discloses the cooking machine circuit 200 of one or more embodiments and have this cooking machine circuit 200's cooking machine 100 can save the use of some switch tubes, simplify peripheral circuit, reduce cost.

The utility model discloses the cooking machine circuit 200 of one or more embodiments and have this cooking machine circuit 200's cooking machine 100 can reduce controller 20's control current, and controller 20's lectotype is easy, and is with low costs, and control reliability is high, and product property can be good.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A disposer circuit, comprising: the method comprises the following steps:

the switching power supply (10) is used for being connected to an external power supply, the switching power supply (10) comprises a power supply chip (11), the power supply chip (11) is used for generating a negative first voltage, and the power supply chip (11) is provided with an output end;

a controller (20) including a power supply terminal, a first port, and a second port; and

a load comprising a first load (30) less than or equal to the first voltage and a second load (40) greater than the first voltage,

wherein, the power supply end of the controller (20) is connected to the output end of the power supply chip (11), the first port of the controller (20) directly drives and controls the first load (30), and the second port of the controller (20) drives and controls the second load (40) through a switch tube.

2. The food processor circuit of claim 1, wherein: switching power supply (10) still include be used for with external power source's alternating voltage converts the power conversion module (12) of negative second voltage into, power chip (11) still has input and earthing terminal, the input of power chip (11) passes through power conversion module (12) is connected to external power source's live wire is used for receiving negative second voltage, the earthing terminal of power chip (11) is used for being connected to external power source's zero line.

3. The food processor circuit of claim 2, wherein: first load (30) are including silicon controlled rectifier (31) that is used for driving load switch circuit, silicon controlled rectifier (31) have control pin, first pin and second pin, the first port of controller (20) includes drive port, the drive port direct control of controller (20) the control pin of silicon controlled rectifier (31), the first pin of silicon controlled rectifier (31) is connected to external power source's zero line, the second pin of silicon controlled rectifier (31) is connected load switch circuit.

4. The food processor circuit of claim 3, wherein: and a control pin of the controllable silicon (31) is connected to a driving port of the controller (20) through a first current limiting resistor (311).

5. The food processor circuit of claim 1, wherein: the second load (40) comprises a relay (41) which can selectively connect the motor and the heating assembly, the second port of the controller (20) comprises a control port, the switch tube comprises a first triode (411), and the control port of the controller (20) controls the relay (41) through the first triode (411).

6. The food processor circuit of claim 5, wherein: still include bowl cover detection circuitry (50), the control port of controller (20) with bowl cover detection circuitry (50) are established ties the base of first triode (411), the collecting electrode of first triode (411) is connected relay (41), the projecting pole of first triode (411) is connected external power source's zero line.

7. The food processor circuit of claim 6, wherein: the cup cover detection circuit (50) comprises a photoelectric coupler (60), the input side of the photoelectric coupler (60) is used for receiving cup cover control signals of cup cover covering, and the output side of the photoelectric coupler (60) and the control port of the controller (20) are connected in series to the base of the first triode (411).

8. The food processor circuit of claim 7, wherein: the controller (20) further comprises a cup cover detection port connected with the output end of the photoelectric coupler (60), and a forward diode (70) is arranged between the cup cover detection port of the controller (20) and the control port.

9. The food processor circuit of claim 1, wherein: the first load (30) comprises a buzzer, the first port of the controller (20) comprises a music port, and the music port of the controller (20) directly drives and controls the buzzer; or

The second load (40) comprises a buzzer, the first port of the controller (20) comprises a music port, the switch tube comprises a second triode, and the music port of the controller (20) drives and controls the buzzer through the second triode.

10. A cooking machine, its characterized in that: the method comprises the following steps:

a host (110), the host (110) comprising the food processor circuit (200) of any of claims 1-9;

a cup assembly (120) mountable on the host (110); and

the cup cover assembly (130) can cover the cup body assembly (120).

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