CN216823025U - Food processor convenient to operate - Google Patents

Abstract

The utility model relates to a convenient operation's food preparation machine belongs to life electrical apparatus technical field. Comprises a machine head and a cup body, wherein the machine head is provided with a motor and a speed regulating circuit, and the output end of the motor is connected with a stirring piece; the machine head is provided with a key area, and the key area is provided with a first key switch and a second key switch which are connected in the speed regulating circuit; the first key switch and the second key switch are arranged adjacently, and the first key switch is independently triggered to start the motor to run at a first rotating speed matched with the first processing mode; the second key switch is triggered independently or the second key switch and the first key switch are triggered together to start the motor to run at a second rotating speed matched with the second processing mode; and the time length required by the second processing mode is longer than that required by the first processing mode. The mode that two key switches are pressed by the palm simultaneously replaces a single finger to press one of the keys, the motor still runs at the rotating speed matched with the processing mode with long processing time, and fatigue caused by long-time pressing of the finger is avoided.

Description

Food processor convenient to operate

Technical Field

The utility model relates to a life electrical apparatus technical field, specifically speaking relates to a convenient operation's food preparation machine.

Background

Food preparation machine on the market need utilize speed governing circuit to control its conversion between different rotational speeds, and this speed governing circuit adopts the chopper circuit who takes the silicon controlled rectifier as the owner usually, and food preparation machine's aircraft nose top uses two to dabble the button and triggers high-low gear to protect the motor through the temperature controller of establishing ties in the major loop with the motor, avoid the high temperature to cause the harm to the motor.

The defects of the existing food processor are as follows: when the stirring is carried out at one of the rotating speeds for a long time, the keys are required to be continuously pressed by fingers for several minutes, so that the fingers are fatigued.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a convenient operation's food preparation machine, under the long longer processing mode of time when processing, the user can replace single finger to press one of them button through the mode of pressing two key switch simultaneously with the palm, and the motor still in order to match the rotational speed operation under the long longer processing mode of time of processing to the fatigue of production has been avoided pressing down for a long time to the finger.

In order to realize the aim, the food processor convenient to operate provided by the utility model comprises a machine head and a cup body, wherein the machine head is provided with a motor and a speed regulating circuit, and the output end of the motor is connected with a stirring piece; the machine head is provided with a key area, and the key area is provided with a first key switch and a second key switch which are connected in the speed regulating circuit; the first key switch and the second key switch are arranged adjacently, and the first key switch is triggered independently to start the motor to run at a first rotating speed matched with a first machining mode; the second key switch is triggered independently or the second key switch and the first key switch are triggered together to start the motor to run at a second rotating speed matched with a second machining mode; and the time length required by the second processing mode is longer than that required by the first processing mode.

Optionally, in an embodiment, the first processing mode is a meat mincing mode, and the second processing mode is a dough kneading mode.

Optionally, in an embodiment, the speed regulation circuit includes a first rotation speed circuit and a second rotation speed circuit, and a unidirectional diode for reducing the power of the motor is arranged on the second rotation speed circuit;

the first key switch and the second key switch are both single-pole double-throw switches, a normally closed end and a normally open end of the second key switch respectively and correspondingly select the first rotating speed circuit and the second rotating speed circuit, and the first key switch is arranged on the first rotating speed circuit.

Optionally, in an embodiment, a common terminal of the second key switch is connected to the first output terminal of the power supply circuit, and a normally open terminal is connected to the anode of the unidirectional diode;

the public end of the first key switch is connected with the normally closed end of the second key switch, the normally open end of the first key switch is connected with the cathode of the one-way diode, the cathode of the one-way diode is simultaneously connected to the first connecting end of the motor, and the second connecting end of the motor is connected to the second output end of the power supply circuit.

Optionally, in an embodiment, the speed regulation circuit includes a first rotation speed circuit and a second rotation speed circuit connected in parallel, the first key switch is located on the first rotation speed circuit, the second key switch is located on the second rotation speed circuit, and a unidirectional diode for reducing the power of the motor is arranged on the first rotation speed circuit.

Optionally, in an embodiment, the first key switch and the second key switch are both single-pole double-throw switches, a common terminal of the first key switch and a common terminal of the second key switch are both connected to a first output terminal of a power supply circuit, and a normally-closed terminal is in a floating state;

the normally open end of the first key switch is connected with the anode of the one-way diode, the normally open end of the second key switch is connected with the first connecting end of the motor, and the second connecting end of the motor is connected to the second output end of the power supply circuit.

Optionally, in an embodiment, a bipolar temperature controller is disposed on a circuit of the first rotation speed circuit and the second rotation speed circuit, where the circuit controls the higher rotation speed of the motor, a common end of the bipolar temperature controller is connected to a normally open end of a key switch on the corresponding circuit, a low-temperature conducting end is connected to an anode of the unidirectional diode, and a high-temperature conducting end is connected to a cathode of the unidirectional diode.

Optionally, in an embodiment, a temperature controller for protecting the motor is disposed between the motor and the power supply circuit.

Optionally, in an embodiment, the key area is disposed on a top portion of the handpiece.

Optionally, in an embodiment, the key region is curved for palm pressing.

Compared with the prior art, the utility model discloses an useful part lies in:

the utility model discloses a first key switch and second key switch control motor respectively with the rotational speed operation of difference to drive the stirring piece and wait to stir the edible material to the difference respectively with the processing mode of difference and stir. Because the processing time lengths required by different processing modes are different, when the processing mode with longer processing time length is operated, if a single finger is used for pressing the key, the food processor is in the processing mode with longer processing time length, and the fatigue of the finger is easily caused by the vibration of the machine and the like. And through pressing the first key switch and the second key switch that set up adjacently simultaneously, make the motor with the rotational speed operation of the long processing mode of matching processing duration, at this moment, can adopt the palm to press on whole key region, and do not worry the spurious triggering problem that causes because the palm area is great.

The utility model discloses set up bipolar temperature controller on the higher circuit of control motor rotational speed, bipolar temperature controller's common port is connected with the normal open end that corresponds the key switch on the circuit, and low temperature conduction end links to each other with one-way diode's positive pole, and high temperature conduction end links to each other with one-way diode's negative pole. Use high-speed gear to cause the temperature of motor temperature rise fast to rise when the user for a long time and make the temperature of motor reach bipolar temperature controller's jump temperature, the low temperature conduction end of bipolar temperature controller switches on this moment, and the electric current passes through one-way diode, and power reduces half, and the rotational speed reduces, and calorific capacity reduces to it is too fast to rise through the temperature of automatic switch-over low-speed gear protection motor when the maloperation.

Drawings

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

fig. 2 is a circuit diagram of a control circuit according to one embodiment of the present invention;

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

fig. 4 is a voltage diagram of a motor according to an embodiment of the present invention;

fig. 5 is a protection circuit diagram of a control circuit according to one embodiment of the present invention;

fig. 6 is a circuit diagram of a control circuit according to another embodiment of the present invention;

fig. 7 is a protection circuit diagram of a control circuit according to another embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described below with reference to the following embodiments and accompanying drawings. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived by a person skilled in the art from the described embodiments without any inventive step, are within the scope of the present 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 the terms "comprising" or "including" and similar referents in the context of describing the invention as being "comprising" and the like, is to be construed to cover the listed referents or items, including but not limited to the listed referents or items, and equivalents thereof. 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. "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Referring to fig. 1 and 2, the food processor of this embodiment, which is convenient to operate, includes: cup 100, a stirring member (not shown), and handpiece 200. The handpiece 200 may be top-mounted or bottom-mounted, and the top-mounted embodiment is the top-mounted embodiment. The cup body 100 is cup-shaped or bowl-shaped and is used for containing food to be stirred. The top of the cup body 100 can be provided with a cover body 101, and the cover body 101 is fixedly connected with the machine head 200, or the machine head 200 is directly fixed on the top of the cup body 100 in a screwing or clamping manner. The stirring member is installed at the bottom of the head 200 and extends into the cup body 100 to stir the food material in the cup body 100.

The machine head 200 of the food processor comprises a motor 202 and a speed regulating circuit 203, wherein the output end of the motor 202 is connected with a stirring piece of the food processor; the handpiece 200 is further provided with a key area 205, the key area 205 is provided with a first key switch S1 and a second key switch S2 which are connected in the speed regulating circuit 203, and the first key switch S1 and the second key switch S2 are arranged adjacently; the first key switch S1 is independently triggered to start the motor 202 to operate at a first rotational speed matching the first machining mode; the second key switch S2 is triggered independently or the second key switch S2 and the first key switch S1 are triggered together to start the motor 202 to operate at a second rotation speed matching the second processing mode; and the time length required by the second processing mode is longer than that required by the first processing mode.

In this embodiment, the first key switch S1 and the second key switch S2 are both micro switch keys without self-locking, the first key switch S1 and the second key switch S2 are connected to the speed regulating circuit 203, and the motor 202 is controlled to operate at different rotating speeds by the first key switch S1 and the second key switch S2, so as to drive the stirring component to stir different food materials to be stirred in different processing modes. Because the processing time lengths required by different processing modes are different, when the processing mode with longer processing time length is operated, if a single finger is used for pressing the key, the key is in the processing mode with longer processing time length, and the finger fatigue is easily caused by the vibration of a machine and the like. And by simultaneously pressing the first key switch S1 and the second key switch S2 which are adjacently arranged, the motor 202 is operated at a rotation speed which matches a processing mode with a long processing time, and at this time, the palm can be used for pressing on the whole key area, and the problem of false triggering caused by a large palm area is not worried about.

In this embodiment, the handpiece 200 further includes a housing 201, and the motor 202 and the speed control circuit 203 are disposed in the housing 201. The key region 205 is located on the casing 201, and may be the top of the casing 201 or the side of the casing 201. The embodiment is located on the top of the housing 201, so that the pressing by fingers or palms is more convenient to trigger the key, and the embodiment is more suitable for stirring work in a long time such as the second processing mode when the palms are pressed. Further, providing key region 205 in a curved surface shape suitable for pressing with a palm can save more labor.

In this embodiment, when the first key switch S1 and the second key switch S2 are pressed simultaneously, the motor 202 operates at the second rotation speed, which is the rotation speed of the motor with longer processing duration, and may be the first processing mode being the meat mincing mode, the second processing mode being the dough kneading mode, and the processing duration of the dough kneading mode being longer than that of the meat mincing mode; the first processing mode can be a meat mincing mode, the second processing mode can be a meat mincing mode, and the processing time of the meat mincing mode is longer than that of the meat mincing mode.

In one embodiment, the first processing mode is a meat mincing mode and the second processing mode is a dough kneading mode. The stirring member comprises a stirring cutter for mincing meat and a stirring rod for kneading dough. When the material to be stirred is meat, the stirring member is replaced by a stirring cutter, and the first key switch S1 is pressed, so that the motor 202 drives the stirring cutter at a first rotation speed to grind the meat, the first rotation speed is a high speed gear, which is beneficial to the grinding effect, and the working time is usually within 5S-60S. When the material to be stirred is dough, the stirring piece is replaced by a stirring rod, and the second key switch S2 is pressed, so that the motor 202 drives the stirring rod to stir the dough at a second rotating speed, which is a low speed gear, thereby facilitating flour dough formation, and the working time is usually within 1min-5 min. Because the time for kneading the dough is long, if the finger continuously presses the second key for a long time, the finger is easy to fatigue. At this time, the palm can be pressed on the key area entirely, and the first key switch S1 and the second key switch S2 are pressed simultaneously, while the motor 202 still drives the stirring rod to knead the dough at the second rotation speed.

Specifically, the governor circuit 203 includes a power supply circuit, a first speed circuit, and a second speed circuit, where a component for reducing the power of the motor, such as a unidirectional diode, is disposed on the second speed circuit.

Specifically, referring to fig. 2, the first key switch S1 and the second key switch S2 are both single-pole double-throw switches, and the normally closed end 6 and the normally open end 4 of the second key switch S2 respectively correspond to the first rotation speed circuit and the second rotation speed circuit, and the first key switch S1 is disposed on the first rotation speed circuit. The power supply circuit is mains alternating current, a public end 5 of the second key switch S2 is connected with a first output end (mains live wire L) of the power supply circuit, and a normally open end 4 is connected with the anode of the one-way diode D1; the common end 2 of the first key switch S1 is connected to the normally closed end 6 of the second key switch S2, the normally open end 1 is connected to the cathode of the unidirectional diode D1, the cathode of the unidirectional diode D1 is simultaneously connected to the first connection end of the motor 202, and the second connection end of the motor 202 is connected to the second output end of the power supply circuit.

Specifically, the power supply circuit is mains alternating current, and a temperature controller 204 is arranged between the power supply circuit and the motor 202 to protect the motor 202. The common end 5 of the second key switch S2 is connected with the live wire L of the commercial power, the normally open end 6 is connected with the positive end of the one-way diode D1, the normally closed end 4 is connected with the common end 2 of the first key switch S1, the normally closed end 3 of the first key switch S1 floats, the normally open end 1 of the first key switch S1, a power input terminal of the motor 202 and the negative end of the one-way diode D1 are connected, the other power input terminal of the motor 202 is connected with the temperature controller 204, and the other end of the temperature controller 204 is connected with the neutral wire N of the commercial power.

When the food processor is powered on and any key is not pressed, the normally closed end 4 of the second key switch S2 is switched on, the normally open end 3 of the first key switch S1 is switched on, and the circuit breaking motor does not work; when the first key switch S1 is pressed, the normally closed end 1 of the first key switch S1 is turned on, the first key switch S1, the second key switch S2, the power supply circuit, and the motor 202 form a closed loop, that is, the first speed circuit is turned on, and at this time, the motor 202 operates at the maximum power; when the second key switch S2 is pressed, the normally open end 6 of the second key switch S2 is turned on, and forms a closed loop with the motor 202 and the power supply circuit through the unidirectional diode D1, that is, the second speed circuit is turned on, referring to fig. 3 and 4, only the positive half-period current can pass through the motor 202 due to the unidirectional conductivity of the unidirectional diode D1, so that the power of the motor 202 is only half of the power of the first speed circuit when the first speed circuit is turned on, and the speed is reduced; when the first key switch S1 and the second key switch S2 are pressed simultaneously, the normally closed terminal 6 of the second key switch S2 is turned on, a closed loop is formed with the motor 202 and the power supply circuit through the unidirectional diode D1, the first speed circuit is turned off, the second speed circuit is turned on, only the positive half-period current can pass through the motor 202 due to the unidirectional conductivity of the unidirectional diode D1, and therefore, the power of the motor 202 is only half of that when the first speed circuit is turned on, and the motor 202 runs at a low speed.

The two-stage speed regulation of the motor 202 is realized by only one-way diode D1, the circuit is simple and reliable, and the circuit can allow a user to simultaneously press the first key switch S1 and the second key switch S2 with the palm when performing a processing mode for a long time, such as a dough kneading mode, at the moment, the rotating speed is low enough to be suitable for the dough kneading mode, and the problem of fatigue caused by pressing a single key with a finger for a long time is avoided.

Further, referring to fig. 5, a bipolar temperature controller KS3 is arranged on a first speed circuit for controlling the motor 202 to have a high speed, the circuit connection of the bipolar temperature controller KS3 is similar to a single-pole double-throw switch, but the action is not external force pressing, but a bimetallic strip deforms when exceeding a specific temperature, the circuit connection is switched, the trip temperature of the bipolar temperature controller is 20-40 ℃ lower than the trip temperature of the temperature controller, and the bipolar temperature controller and the temperature controller are fixed on a silicon steel sheet stator of the alternating current motor. In this embodiment, the common terminal 8 of the bipolar temperature controller KS3 is connected to the normally open terminal 1 of the first key switch S1, the low temperature conducting terminal 7 is connected to the anode of the unidirectional diode D1 and is connected to the normally open terminal 4 of the second key switch S2, and the high temperature conducting terminal 9 is connected to the cathode of the unidirectional diode D1 and is connected to one end of the motor 202.

When a user uses a high-speed gear for a long time to cause the temperature rise of the motor 202 to rise rapidly, once the temperature of the motor 202 reaches the jump temperature of the bipolar temperature controller KS3, the low-temperature conducting end 7 of the bipolar temperature controller KS3 is conducted at the moment, the current passes through the one-way diode D1, the power is reduced by half, the rotating speed is reduced, the heating value is reduced, and therefore the temperature rise is too fast when the motor is switched to the low-speed gear for protection in misoperation.

In another embodiment, the first processing mode is a vegetable-mincing mode and the second processing mode is a meat-mincing mode. When the food to be stirred is a dish, the first key switch S1 is pressed down, so that the motor 202 drives the stirring tool at the first rotation speed to grind the dish, and the dish is easier to grind, so the first rotation speed is a low speed gear. When the material to be stirred is meat, the second key switch S2 is pressed, so that the motor 202 drives the stirring tool to stir the meat at the second rotation speed, which is a high speed gear. Due to the fact that the meat mincing time is long, if the second key is continuously pressed by a finger for a long time, fatigue of the finger is easily caused. At this time, the palm can be pressed on the key area, the first key switch S1 and the second key switch S2 are pressed simultaneously, and the motor 202 still drives the stirring tool to grind meat at the second rotation speed.

Referring to fig. 6, the first speed circuit and the second speed circuit are connected in parallel, the first key switch S1 is located on the first speed circuit, and the second key switch S2 is located on the second speed circuit. The first key switch S1 and the second key switch S2 are both single-pole double-throw switches, the common end 2 of the first key switch S1 and the common end 5 of the second key switch S2 are both connected to the first output end of the power supply circuit, and the normally closed ends are both in a floating state; the normally open end 1 of the first key switch S1 is connected to the anode of the one-way diode D1, the normally open end 4 of the second key switch S2 is connected to the first connection end of the motor 202, and the second connection end of the motor 202 is connected to the second output end of the power supply circuit.

Specifically, the power supply circuit is mains alternating current, and a temperature controller 204 is arranged between the power supply circuit and the motor 202 to protect the motor 202. The public end 2 of the first key switch S1 and the public end 5 of the second key switch S2 are connected with a live line L of the mains supply, and the normally closed ends are floating; the normally open end 1 of the first key switch S1 is connected to the positive end of the one-way diode D1, the normally open end 4 of the second key switch S2, the negative end of the one-way diode D1 and a power input terminal of the motor 202 are connected, the other power input terminal of the motor 202 is connected to the temperature controller 204, and the other end of the temperature controller 204 is connected to the neutral line N of the commercial power.

When the power is switched on and no key is pressed, the normally closed end 3 of the first key switch S1 is switched on, the normally closed end 6 of the second key switch S2 is switched on, the circuit is disconnected, and the motor 202 does not work; when only the second key switch S2 is pressed, the normally open end 4 of the second key switch S2 is turned on, the second key switch S2, the power supply circuit, and the motor 202 form a closed loop, that is, the second speed circuit is turned on, and at this time, the motor 202 operates at the maximum power; when only the first key switch S1 is pressed, the normally open end 1 of the first key switch S1 is turned on, and forms a closed loop with the motor 202 and the power supply circuit through the unidirectional diode D1, that is, the first speed circuit is turned on, referring to fig. 3 and 4, only the positive half-period current can pass through the motor 202 due to the unidirectional conductivity of the unidirectional diode D1, so that the power of the motor 202 is only half of the power of the second speed circuit when the second speed circuit is turned on, and the speed is reduced; when the first key switch S1 and the second key switch S2 are pressed simultaneously, the normally open end 1 of the first key switch S1 is turned on, the normally open end 4 of the second key switch S2 is turned on, the two are connected in parallel and then form a closed loop with the motor 202 and the power supply circuit, the unidirectional diode D1 is short-circuited by the second key switch S2, so that the first speed-rotation circuit does not play any role, and the motor 202 operates at the maximum power.

Further, referring to fig. 7, a bipolar temperature controller KS3 is disposed on a second rotation speed circuit for controlling the higher rotation speed of the motor 202, a common terminal 8 of the bipolar temperature controller KS3 is connected to a normally open terminal 4 of the second key switch S2, a low temperature conducting terminal 7 is connected to an anode of the unidirectional diode D1 and is also connected to a normally open terminal 1 of the first key switch S1, and a high temperature conducting terminal 9 is connected to a cathode of the unidirectional diode D1 and is also connected to one end of the motor 202.

When a user uses a high-speed gear for a long time to cause the temperature rise of the motor 202 to rise rapidly, once the temperature of the motor 202 reaches the jump temperature of the bipolar temperature controller KS3, the low-temperature conducting end 7 of the bipolar temperature controller KS3 is conducted at the moment, the current passes through the one-way diode D1, the power is reduced by half, the rotating speed is reduced, the heating value is reduced, and therefore the temperature rise is too fast when the motor is switched to the low-speed gear automatically to protect the motor from misoperation.

Claims (10)

1. A food processor convenient to operate comprises a machine head and a cup body, wherein the machine head is provided with a motor and a speed regulating circuit, and the output end of the motor is connected with a stirring piece; the speed regulating device is characterized in that the machine head is provided with a key area, and the key area is provided with a first key switch and a second key switch which are connected in the speed regulating circuit; the first key switch and the second key switch are arranged adjacently, and the first key switch is triggered independently to start the motor to run at a first rotating speed matched with a first machining mode; the second key switch is triggered independently or the second key switch and the first key switch are triggered together to start the motor to run at a second rotating speed matched with a second machining mode; and the time length required by the second processing mode is longer than that required by the first processing mode.

2. A food processor as defined in claim 1, wherein the first processing mode is a meat mincing mode and the second processing mode is a dough kneading mode.

3. The food processor of claim 2, wherein the speed regulation circuit includes a first speed circuit and a second speed circuit, the second speed circuit having a unidirectional diode disposed thereon for reducing power of the motor;

the first key switch and the second key switch are both single-pole double-throw switches, a normally closed end and a normally open end of the second key switch respectively and correspondingly select the first rotating speed circuit and the second rotating speed circuit, and the first key switch is arranged on the first rotating speed circuit.

4. The food processor of claim 3, wherein the common terminal of the second keyswitch is connected to the first output terminal of the power supply circuit and the normally open terminal is connected to the anode of the unidirectional diode;

the public end of the first key switch is connected with the normally closed end of the second key switch, the normally open end of the first key switch is connected with the cathode of the one-way diode, the cathode of the one-way diode is simultaneously connected to the first connecting end of the motor, and the second connecting end of the motor is connected to the second output end of the power supply circuit.

5. The food processor of claim 1, wherein the speed regulation circuit includes a first speed circuit and a second speed circuit connected in parallel, the first key switch is located on the first speed circuit, the second key switch is located on the second speed circuit, and a unidirectional diode for reducing the power of the motor is provided on the first speed circuit.

6. The food processor of claim 5, wherein the first key switch and the second key switch are single-pole double-throw switches, a common terminal of the first key switch and the second key switch is connected to a first output terminal of a power supply circuit, and a normally closed terminal is in a floating state;

the normally open end of the first key switch is connected with the anode of the one-way diode, the normally open end of the second key switch is connected with the first connecting end of the motor, and the second connecting end of the motor is connected to the second output end of the power supply circuit.

7. A food processor as claimed in any one of claims 3 to 6, wherein the circuit for controlling the higher speed of the motor in the first speed circuit and the second speed circuit is provided with a bipolar temperature controller, the common terminal of the bipolar temperature controller is connected to the normally open terminal of the key switch in the corresponding circuit, the low temperature conducting terminal is connected to the positive electrode of the unidirectional diode, and the high temperature conducting terminal is connected to the negative electrode of the unidirectional diode.

8. A food processor as claimed in any one of claims 3 to 6, wherein a thermostat is provided between the motor and the power supply circuit for protecting the motor.

9. The food processor of claim 1, wherein the key region is provided at a top portion of the head.

10. The food processor of claim 1, wherein the key region is curved for palm depression.

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