CN112315347B - Safe and reliable's food processor - Google Patents
Safe and reliable's food processor Download PDFInfo
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- CN112315347B CN112315347B CN202011238272.7A CN202011238272A CN112315347B CN 112315347 B CN112315347 B CN 112315347B CN 202011238272 A CN202011238272 A CN 202011238272A CN 112315347 B CN112315347 B CN 112315347B
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- protection switch
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
- A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
- A47J43/046—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven with tools driven from the bottom side
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
- A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
- A47J43/07—Parts or details, e.g. mixing tools, whipping tools
- A47J43/0716—Parts or details, e.g. mixing tools, whipping tools for machines with tools driven from the lower side
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
- A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
- A47J43/07—Parts or details, e.g. mixing tools, whipping tools
- A47J43/075—Safety devices
- A47J43/0761—Safety devices for machines with tools driven from the lower side
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
- A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
- A47J43/07—Parts or details, e.g. mixing tools, whipping tools
- A47J43/08—Driving mechanisms
- A47J43/085—Driving mechanisms for machines with tools driven from the lower side
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Food-Manufacturing Devices (AREA)
- Protection Of Generators And Motors (AREA)
Abstract
The embodiment of the invention provides a safe and reliable food processor, which comprises a barrel body and a barrel cover, wherein the barrel cover is detachably arranged at the top of the barrel body, and a magnet is arranged on the barrel cover; the wire fixing box is fixedly arranged on the barrel body, a control circuit is arranged in the wire fixing box, the control circuit comprises a magnetic spring switch, an overcurrent protection switch, an overheat protection switch and an overload protection switch, and the magnetic spring switch, the overcurrent protection switch, the overheat protection switch and the overload protection switch are connected in series through wires; the machine head is internally provided with a motor, a control circuit is connected with the motor through a wire, and the control circuit is used for controlling the motor to be started and stopped. When any one of the magnetic reed switch, the overcurrent protection switch, the overheat protection switch and the overload protection switch is in a disconnection state, the corresponding part is indicated to be faulty or abnormal, the control circuit is disconnected at the moment, and the motor stops running or cannot be started to run, so that the function of protecting a user is achieved, and the use is safe and reliable.
Description
Technical Field
The invention relates to the field of food processing machinery, in particular to a safe and reliable food processor.
Background
The food processor integrates the functions of beating soybean milk, grinding dry powder, squeezing juice, beating meat stuffing, planing ice and the like, is used for manufacturing various foods such as juice, soybean milk, jam, dry powder, planing ice, meat stuffing and the like, and is a product which is obtained by the juice extractor after multiple generations of development. The food processor has the advantages of high juice yield, low noise, high stability, simple operation and the like, and is widely applied to various families.
Common food processors in the market comprise a soymilk machine, a juice extractor and the like, and the following defects exist at present: (1) when the upper cover is opened or the upper cover is not closed, the stirring cutter is still rotated, so that safety accidents are easily caused; (2) when larger food or hard food is crushed by the stirring cutter in the food processor, overload operation of the stirring cutter is easy to occur; (3) the circuit in the food processor cannot be automatically disconnected when short circuit occurs, so that potential safety hazards such as fire disaster and the like are easily generated; (4) when the motor is used for a long time, the motor is burnt out due to the fact that the temperature of a motor winding is too high. In summary, the safety performance of the food processor in the prior art is not high enough, and the use requirement of a user is difficult to be met.
Disclosure of Invention
Aiming at the technical problems, the invention provides a safe and reliable food processor which has the characteristics of high safety performance and intelligent control mode.
Safe and reliable's food processor, characterized by, include:
the barrel cover is detachably arranged at the top of the barrel body, and a magnet is arranged on the barrel cover;
the wire fixing box is fixedly arranged on the barrel body, a control circuit is arranged in the wire fixing box, the control circuit comprises a magnetic reed switch, an overcurrent protection switch, an overheat protection switch and an overload protection switch, and the magnetic reed switch, the overcurrent protection switch, the overheat protection switch and the overload protection switch are connected in series through wires;
the machine head is internally provided with a motor, the control circuit is connected with the motor through a wire, and the control circuit is used for controlling the motor to be started and stopped.
Further, the magnetic reed switch is a reed switch, when the barrel cover is placed on the top of the barrel body, the magnet is positioned above the reed switch, and the reed switch is in a closed state; otherwise, the reed switch is in a disconnected state.
Further, the wire fixing box comprises a wire lower shell and a wire upper cover, the wire lower shell is fixedly arranged on the side edge of the top of the barrel body, the wire upper cover is buckled and arranged on the wire lower shell, and the reed switch and the wire are fixedly arranged in a containing cavity between the wire lower shell and the wire upper cover.
Further, a pressing piece is further arranged in the wire fixing box and used for fixing the reed switch on the wire lower shell.
Further, the barrel cover is provided with a magnet fixing box, the magnet fixing box is arranged on the outer peripheral side of the barrel cover, and the magnet is arranged in the barrel cover fixing box.
Further, the magnet fixing box comprises a fixing lower shell and a fixing upper cover, the fixing lower shell is fixedly arranged on the outer peripheral side of the barrel cover, the fixing upper cover is buckled on the fixing lower shell, and the magnet is fixedly arranged in a containing cavity between the fixing lower shell and the fixing upper cover.
Further, still include the system circuit and set up the current detection unit in the system circuit, the current detection unit with overcurrent protection switch electricity is connected, the current detection unit is used for detecting the electric current size of system circuit to control overcurrent protection switch's open-close state, wherein:
when the current of the system circuit is smaller than a current preset value, the overcurrent protection switch is in a closed state;
otherwise, the overcurrent protection switch is in an off state.
Further, still include temperature sensor, temperature sensor sets up the inside of aircraft nose and with the motor is adjacent to be set up, temperature sensor with overheat protection switch electricity is connected, temperature sensor is used for detecting the temperature size of motor to control overheat protection switch's open/close state, wherein:
when the temperature of the motor is smaller than a temperature preset value, the overheat protection switch is in a closed state;
otherwise, the overheat protection switch is in an off state.
Further, still include rotation speed sensor and stirring cutter, rotation speed sensor sets up stirring cutter's pivot is last, rotation speed sensor with overload protection switch electricity is connected, rotation speed sensor is used for detecting stirring cutter's rotational speed size, thereby control overload protection switch's open-close state, wherein:
when the rotating speed of the stirring cutter is larger than a rotating speed preset value, the overload protection switch is in a closed state;
otherwise, the overload protection switch is in an off state.
Further, when the reed switch, the overcurrent protection switch, the overheat protection switch and the overload protection switch are all in a closed state, the control circuit is conducted, and the motor can be started to operate; when any one of the magnetic reed switch, the overcurrent protection switch, the overheat protection switch and the overload protection switch is in a disconnection state, the control circuit is disconnected, and the motor stops running.
The control circuit of the safe and reliable food processor provided by the invention comprises the magnetic reed switch, the overcurrent protection switch, the overheat protection switch and the overload protection switch, and the control of the running state of the motor is realized through the opening and closing of the magnetic reed switch, the overcurrent protection switch, the overheat protection switch and the overload protection switch. Wherein, the magnetic reed switch determines the open-close state of the magnetic reed switch by whether the barrel cover is closed or not; the overcurrent protection switch determines the opening and closing states of the overcurrent protection switch through the current magnitude of a system circuit; the overheat protection switch determines the opening and closing states of the overheat protection switch according to the temperature of the motor; the overload protection switch determines the open and close states of the stirring cutter according to the rotating speed of the stirring cutter. The motor can be electrified to run only when all the switches are in the closed state; when any switch is disconnected, the corresponding part is indicated to be faulty or abnormal, and the motor stops running or cannot be started to run at the moment, so that the function of protecting a user is achieved, and the safety performance is high.
Taking the magnetic reed switch as an example, when the barrel cover is closed at the top of the barrel body, the magnet is positioned above the magnetic reed switch, and the magnetic reed switch is activated to be conducted, so that the food processor can be electrified to run; when the barrel cover is taken off from the barrel body, the magnetic reed switch loses magnetism and is in an open circuit state, and the food processor is in a standby state. The structure design utilizes the magnetic effect of the magnet and the magnetic reed switch to realize the control of the operation switch state of the food processor, thereby judging whether the barrel cover is closed on the barrel body, and if the user carelessly opens the barrel cover, the food processor is powered off to stop operation, so that the safety accident is avoided.
Drawings
FIG. 1 is a schematic diagram of a safe and reliable food processor of the present invention;
FIG. 2 is an enlarged partial schematic view of the encircled portion of FIG. 1;
FIG. 3 is a schematic diagram of the control circuit of the present invention;
FIG. 4 is a schematic diagram of the control logic of the control circuit of the present invention;
FIG. 5 is a cross-sectional view of the safety food processor of the present invention;
FIG. 6 is an exploded view of the safety and reliability food processor of the present invention;
FIG. 7 is an enlarged partial schematic view of the encircled portion of FIG. 6;
reference numerals illustrate: 1. a tub body; 2. a barrel cover; 3. a wire fixing box; 301. a lower wire case; 302. a wire upper cover; 4. a magnetic reed switch; 401. tabletting; 5. an overcurrent protection switch; 6. an overheat protection switch; 7. an overload protection switch; 8. a motor; 9. a magnet; 10. a magnet fixing case; 1001. fixing the lower shell; 1002. fixing an upper cover; 11. a machine head; 12. a current detection unit; 13. a temperature sensor; 14. a rotation speed sensor.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
1-3 and 5, according to an embodiment of the present invention, a safe and reliable food processor includes a tub 2 and a tub cover 3, the tub cover 3 is detachably disposed on the top of the tub 2, and a magnet 9 is disposed on the tub cover 3; the device also comprises a wire fixing box 3, wherein the wire fixing box 3 is fixedly arranged on the barrel body 2, a control circuit is arranged in the wire fixing box 3, the control circuit comprises a magnetic reed switch 4, an overcurrent protection switch 5, an overheat protection switch 6 and an overload protection switch 7, and the magnetic reed switch 4, the overcurrent protection switch 5, the overheat protection switch 6 and the overload protection switch 7 are connected in series through wires; the machine head 11 is also included, a motor 8 is arranged in the machine head 11, a control circuit is connected with the motor 8 through a wire, and the control circuit is used for controlling the motor 8 to be turned on and off. The magnetic reed switch 4, the overcurrent protection switch 5, the overheat protection switch 6 and the overload protection switch 7 are used for the running state of the motor. Specifically, the reed switch 4 determines the open/close state of the lid 2 by whether or not it is closed; the overcurrent protection switch 5 determines the open and close states of the system circuit according to the current magnitude of the system circuit; the overheat protection switch 6 determines the open and close states of the motor 8 according to the temperature of the motor; the overload protection switch 7 determines the open/close state of the stirring blade according to the rotation speed of the stirring blade. The motor 8 can be electrified to run only when the magnetic reed switch 4, the overcurrent protection switch 5, the overheat protection switch 6 and the overload protection switch 7 are all in a closed state; when any one of the magnetic reed switch 4, the overcurrent protection switch 5, the overheat protection switch 6 and the overload protection switch 7 is disconnected, the corresponding part is indicated to be faulty or abnormal, and the motor 8 stops running or cannot be started to run at the moment, so that the function of protecting a user is achieved, and the safety performance is higher.
More specifically, when the tub cover 2 is closed on top of the tub body 1, the magnet 9 is located above the reed switch 4, and the reed switch 4 is activated to be turned on, and the food processor can be powered on to operate; when the barrel cover 2 is taken off from the barrel body, the magnetic reed switch 4 loses magnetism and is in an open circuit state, and the food processor is in a standby state. This structural design utilizes the magnetic effect of magnet 9 and magnetic reed switch 4 two, realizes the control of food processor operation on-off state, judges from this whether bung 2 is closed on ladle body 1, if the user carelessly opens bung 2 at the in-process that food processor used, and motor 8 cuts off the power supply promptly and stops the operation, prevents stirring cutter scratch user or the high temperature food in ladle body 1 spill scald user, avoids taking place the incident.
Referring to fig. 1 and 2, in one embodiment of the present invention, the reed switch 4 is a reed switch, and when the lid 2 is placed on top of the tub 1, the magnet 9 is located above the reed switch, and the reed switch is in a closed state; otherwise, the reed switch is in an off state. Specifically, when the barrel cover 2 is placed on the top of the barrel body 1, the magnet 9 is located above the reed switch, and the reed switch is in a conducting state. The specific principle of controlling the on-off of the reed switch by the magnet 9 is as follows: the reed pipe is a magnetic control element, when magnetic substances (a magnet 9) are close to a glass pipe of the reed pipe, under the action of magnetic force lines of a magnetic field, two reeds in the reed pipe are magnetized to attract each other to contact, so that the reed pipe is in a conducting state, and a motor 8 of the food processor can be electrified to run; after the magnetic substance (magnet 9) leaves the reed pipe, the external magnetic force disappears, and the two reeds in the reed pipe are separated due to the elasticity of the reed pipe, so that the reed pipe is in a disconnected state, and the food processor is in a standby state at the moment, and the motor 8 stops powering on. By adopting the structural design mode, on one hand, the food processor can be prevented from still being electrified to run when the bucket cover 2 is opened or the bucket cover 2 is not closed, so that potential safety hazards are caused; on the other hand, in the working process of the food processor, if a user carelessly opens the bucket cover 2, the motor 8 of the food processor is powered off to stop running, so that high-temperature food in the bucket body 1 is prevented from splashing to scald a user, and the safe and reliable food processor has the characteristics of simple structure and safety and reliability.
Referring to fig. 6 and 7, in a further aspect of the above embodiment, the wire fixing case 3 includes a wire lower case 301 and a wire upper cover 302, the wire lower case 301 is fixedly disposed on the top side of the tub 1, the wire upper cover 302 is snap-fitted on the wire lower case 301, and the reed switch and the wire are fixedly disposed in a receiving cavity between the wire lower case 301 and the wire upper cover 302. Specifically, the wire fixing box 3 composed of the wire lower shell 301 and the wire upper cover 302 is arranged on the top side of the barrel body 1, and is used for placing and fixing the reed switch on one hand, so that the position of the reed switch is fixedly arranged on the top side of the barrel body 1, and the on-off state of the reed switch is controlled; on the other hand still be arranged to hold the partial wire in the control circuit who connects with the tongue tube, make wire ordered arrangement distribute, prevent that control circuit's wire from being mixed and disorderly distributing from leading to influencing whole control circuit's circuit connection, appear the potential safety hazard even. In addition, the wire fixing box 3 is arranged on the side edge of the top of the barrel body 1, so that when the barrel cover 2 is closed on the top of the barrel body 1, the distance between the reed pipe in the wire fixing box 3 and the magnet 9 on the barrel cover 2 can enable the reed pipe to sense the magnetic field force line action of the magnet 9, the control of the on-off state of the reed pipe is realized, the control of the running on-off state of the food processor is further realized, and therefore whether the barrel cover 2 is closed on the barrel body 1 is judged, and potential safety hazards are avoided.
In a further aspect of the above embodiment, the wire fixing case 3 is further provided with a pressing piece 401 inside, and the pressing piece 401 is used for fixing the reed switch on the wire lower case 301. The pressing piece 401 is in a strip-shaped block structure, and the pressing piece 401 presses the reed switch on the lower wire shell 301 through a screw, a bolt or a connecting member such as a screw, thereby playing a role in fixing. In addition, when the reed switch is required to be repaired, maintained or replaced, after the connecting members such as the screw, the bolt or the screw on the pressing sheet 401 are unscrewed, the reed switch is taken down, and the operation is simple and convenient.
Referring to fig. 6 and 7, in another embodiment of the present invention, the safe and reliable food processor further includes a magnet fixing case 10, the magnet fixing case 10 is disposed at the outer circumferential side of the tub cover 2, and the magnet 9 is disposed inside the tub cover fixing case 10. In the scheme of this embodiment, the fixed box 10 of magnet sets up in the periphery side of bung 2 to guarantee when bung 2 is closed at the top of ladle body 1, the distance between the fixed box 10 of magnet 9 of tongue tube and magnet on the ladle body can make the tongue tube sense the magnetic field magnetic force line effect of magnet 9, realizes the control of tongue tube break-make state, and then realizes the control of the motor running state of food processor, judges from this whether bung 2 is closed on ladle body 1, avoids taking place the potential safety hazard.
In a further aspect of the above embodiment, the magnet fixing case 10 includes a fixing lower case 1001 and a fixing upper cover 1002, the fixing lower case 1001 is fixedly disposed on the outer peripheral side of the tub cover 2, the fixing upper cover 1002 is snap-fitted on the fixing lower case 1001, and the magnet 9 is fixedly disposed in the accommodation chamber between the fixing lower case 1001 and the fixing upper cover 1002. Specifically, the magnet fixing case 10 is composed of a fixing lower case 1001 and a fixing upper cover 1002, and a connection groove is formed at the bottom of the fixing lower case 1001, and the fixing lower case 1001 is engaged with the outer peripheral side of the tub cover through the connection groove. Meanwhile, the accommodating cavity formed between the fixed lower case 1001 and the fixed upper cover 1002 is used for placing and fixing the magnet 6, so that the position of the magnet 6 is designed at the outer peripheral side position of the barrel cover 2, and the on-off state of the reed switch 5 at the bottom of the barrel cover is controlled.
Referring to fig. 3 and 4, in one embodiment of the present invention, the safe and reliable food processor further includes a system circuit and a current detection unit 12 disposed in the system circuit, the current detection unit 12 is connected to the overcurrent protection switch 5, and the current detection unit 12 is used for detecting the current of the system circuit, so as to control the on/off state of the overcurrent protection switch 5, wherein: when the current of the system circuit is smaller than the current preset value, the overcurrent protection switch 5 is in a closed state; otherwise, the overcurrent protection switch 5 is in the off state. In the scheme of the embodiment, the system circuit is a main circuit of the food processor for driving the motor 8 to rotate, and the current detection unit 12 is arranged in the system circuit for detecting the current in the circuit in real time and sending the acquired current magnitude parameter to the processor. After the processor is subjected to calculation and analysis, judging whether the detected current magnitude value is smaller than a current preset value, if so, indicating that the current magnitude of the system circuit is not over-current, and controlling the over-current protection switch 5 to be closed by the processor, wherein a motor in the system circuit continuously runs; if not, the current of the system circuit is indicated to be overcurrent, if the power is not timely cut off, the system circuit is easy to generate short circuit, at the moment, the processor controls the overcurrent protection switch 5 to be disconnected, the motor stops running, and the potential safety hazard of overcurrent of the system circuit where the motor 8 is avoided.
Referring to fig. 3 and 4, in another embodiment of the present invention, the safe and reliable food processor further includes a temperature sensor 13, the temperature sensor 13 is disposed inside the machine head 11 and adjacent to the motor 8, the temperature sensor 13 is electrically connected to the overheat protection switch 6, and the temperature sensor 13 is used for detecting the temperature of the motor 8, so as to control the opening and closing state of the overheat protection switch 6, wherein: when the temperature of the motor 8 is smaller than a temperature preset value, the overheat protection switch 6 is in a closed state; otherwise, the overheat protection switch 6 is in an off state. In the solution of this embodiment, a temperature sensor 13 disposed adjacent to the motor 8 is used to detect the temperature of the motor 8 in real time, and send the obtained temperature parameter to the processor. After calculation and analysis, the processor judges whether the detected temperature value is smaller than a temperature preset value, if yes, the winding of the motor 8 is indicated to heat normally, the motor works stably in a rated working condition, and the processor controls the overheat protection switch 6 to be closed, and the motor 8 continues to operate; if not, the winding of the motor 8 is severely heated under long-time working, so that the motor is easy to burn, and at the moment, the processor controls the overheat protection switch 6 to be switched off, so that the motor in the system circuit stops running.
Referring to fig. 3 and 4, in still another specific embodiment of the present invention, the safe and reliable food processor further includes a rotation speed sensor 14 and a stirring cutter, the rotation speed sensor 14 is disposed on a rotation shaft of the stirring cutter, the rotation speed sensor 14 is electrically connected to the overload protection switch 7, and the rotation speed sensor 14 is used for detecting a rotation speed of the stirring cutter, so as to control an opening and closing state of the overload protection switch 7, wherein: when the rotating speed of the stirring cutter is larger than a rotating speed preset value, the overload protection switch 7 is in a closed state; otherwise, the overload protection switch 7 is in an off state. In the solution of this embodiment, the rotation speed sensor 14 is disposed on the rotation shaft of the stirring tool, and is configured to detect the rotation speed of the stirring tool in real time, and send the obtained rotation speed parameter to the processor. After calculation and analysis, the processor judges whether the detected rotating speed value is larger than a rotating speed preset value, if so, the stirring cutter is indicated to be moderately subjected to food resistance in the rotating process, the motor load is below the rated power, and at the moment, the processor controls the overload protection switch 7 to be closed, and the motor 8 continues to operate; if not, the hardness of the food to be stirred or smashed in the barrel body 2 is too high or the size is too large, so that the load of the stirring cutter is too large, the motor 8 connected with the stirring cutter is easy to burn out after long-term operation, and at the moment, the processor controls the overload protection switch 7 to be turned off, and the motor in the system circuit stops running.
In summary, since the reed switch 4, the overcurrent protection switch 5, the overheat protection switch 6 and the overload protection switch 7 are connected in series through the wires, when the reed switch 4, the overcurrent protection switch 5, the overheat protection switch 6 and the overload protection switch 7 are all in the closed state, the control circuit is turned on, and the motor 8 can be started to operate; when any one of the reed switch 4, the overcurrent protection switch 5, the overheat protection switch 6 and the overload protection switch 7 is in an off state, the control circuit is disconnected, and the motor 8 stops running. Because any switch is disconnected, the corresponding part is indicated to be faulty or abnormal, and the motor stops running or cannot be started to run at the moment, so that the function of protecting a user is achieved, and the safety performance is high.
Of course, the above is a preferred embodiment of the present invention. It should be noted that it will be apparent to those skilled in the art that several modifications and adaptations can be made without departing from the general principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.
Claims (7)
1. Safe and reliable's food processor, characterized by, include:
the barrel cover is detachably arranged at the top of the barrel body, and a magnet is arranged on the barrel cover;
the wire fixing box is fixedly arranged on the barrel body, a control circuit is arranged in the wire fixing box and comprises a magnetic reed switch, an overcurrent protection switch, an overheat protection switch and an overload protection switch, the magnetic reed switch, the overcurrent protection switch, the overheat protection switch and the overload protection switch are connected in series through wires, the wire fixing box comprises a wire lower shell and a wire upper cover, the wire lower shell is fixedly arranged on the side edge of the top of the barrel body, the wire upper cover is buckled on the wire lower shell, and a reed pipe and the wire are fixedly arranged in a containing cavity between the wire lower shell and the wire upper cover;
the machine head is internally provided with a motor, the control circuit is connected with the motor through a wire, and the control circuit is used for controlling the motor to be started and stopped;
the fixed box of magnet, the fixed box of magnet sets up the periphery side of bung, magnet sets up the inside of the fixed box of bung, the fixed box of magnet is including fixed inferior valve and fixed upper cover, fixed inferior valve is fixed to be set up the periphery side of bung, fixed upper cover lock sets up on the fixed inferior valve, magnet is fixed to be set up fixed inferior valve with in the holding chamber between the fixed upper cover, the bottom of fixed inferior valve is formed with the connection draw-in groove, the fixed inferior valve passes through the connection draw-in groove card is established the periphery side of bung.
2. The safe and reliable food processor according to claim 1, wherein the reed switch is a reed switch, the magnet is located above the reed switch when the lid is placed on top of the tub, and the reed switch is in a closed state; otherwise, the reed switch is in a disconnected state.
3. The safe and reliable food processor according to claim 2, wherein a pressing piece is further provided inside the wire fixing box, and the pressing piece is used for fixing the reed switch on the wire lower shell.
4. The safe and reliable food processor according to claim 1, further comprising a system circuit and a current detection unit disposed in the system circuit, the current detection unit being electrically connected to the overcurrent protection switch, the current detection unit being configured to detect a magnitude of a current of the system circuit, thereby controlling an on-off state of the overcurrent protection switch, wherein:
when the current of the system circuit is smaller than a current preset value, the overcurrent protection switch is in a closed state;
otherwise, the overcurrent protection switch is in an off state.
5. The safe and reliable food processor according to claim 1, further comprising a temperature sensor disposed inside the handpiece and adjacent to the motor, the temperature sensor being electrically connected to the overheat protection switch, the temperature sensor being configured to detect a temperature of the motor and thereby control an on/off state of the overheat protection switch, wherein:
when the temperature of the motor is smaller than a temperature preset value, the overheat protection switch is in a closed state;
otherwise, the overheat protection switch is in an off state.
6. The safe and reliable food processor according to claim 1, further comprising a rotation speed sensor and a stirring cutter, wherein the rotation speed sensor is disposed on a rotation shaft of the stirring cutter, the rotation speed sensor is electrically connected with the overload protection switch, and the rotation speed sensor is used for detecting the rotation speed of the stirring cutter, so as to control the opening and closing state of the overload protection switch, and wherein:
when the rotating speed of the stirring cutter is larger than a rotating speed preset value, the overload protection switch is in a closed state;
otherwise, the overload protection switch is in an off state.
7. The food processor of any one of claims 1-6, wherein the control circuit is conductive and the motor is operable to turn on when the reed switch, the over-current protection switch, the overheat protection switch, and the overload protection switch are in a closed state; when any one of the magnetic reed switch, the overcurrent protection switch, the overheat protection switch and the overload protection switch is in a disconnection state, the control circuit is disconnected, and the motor stops running.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011238272.7A CN112315347B (en) | 2020-11-09 | 2020-11-09 | Safe and reliable's food processor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN112315347A (en) | 2021-02-05 |
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