CN215612285U - Power self-control circuit of food waste grinder - Google Patents
Power self-control circuit of food waste grinder Download PDFInfo
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- CN215612285U CN215612285U CN202121006958.3U CN202121006958U CN215612285U CN 215612285 U CN215612285 U CN 215612285U CN 202121006958 U CN202121006958 U CN 202121006958U CN 215612285 U CN215612285 U CN 215612285U
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Abstract
The utility model discloses a power self-control circuit of a food waste grinder, which relates to the field of kitchen waste treatment and mainly comprises: the switching circuit sends a switching signal to the main control chip; the grinder feeds back a power signal to the signal receiver in the running state; the signal receiver receives a power signal of the grinder; the main control chip switches the rotating speed of the grinder or sends a start-stop signal according to the switch signal and the power signal, and switches the conduction state of the alarm to be a passage state when the power of the grinder reaches an early warning value; the control circuit switches the starting and stopping states of the grinder according to the starting and stopping signals; the alarm generates a voice alarm signal and a light alarm signal in the access state. According to the utility model, through real-time detection of the power of the grinding machine, the rotating speed can be switched according to the power change, so that the grinding machine is switched off through the start-stop signal under the emergency condition under different working conditions, and unnecessary loss is avoided.
Description
Technical Field
The utility model relates to the field of kitchen waste treatment, in particular to a power self-control circuit of a food waste grinder.
Background
Most of the existing kitchen garbage disposers crush kitchen garbage. However, since the kitchen garbage disposer is a household appliance placed in a kitchen for use, it has features of miniaturization and lightness. The winding phenomenon of the cutter head inside the fiber and grinding bin is frequently generated when high-fiber food is processed, so that the cutter head loses the grinding effect, the original state of the cutter head of the grinding bin and the high-fiber food is changed by detecting the winding smooth resistance of the high-fiber food and automatically controlling the reverse rotation rule of the grinding disc for changing the current situation of an internal flow field, and the high-fiber food and the grinding cutter head are enabled to regenerate the effects of tearing, cutting and grinding. Meanwhile, in order to adapt to the household, the processor should minimize the generation of noise.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, the present invention provides a power self-control circuit of a food waste grinder, which is capable of realizing power switching under different working conditions under the condition of low noise, and comprises:
the switching circuit is used for sending a switching signal to the main control chip;
the grinder is used for feeding back a power signal to the signal receiver under the operation state;
a signal receiver for receiving a power signal of the grinding mill;
the main control chip is used for switching the rotating speed of the grinder or sending a start-stop signal according to the switching signal and the power signal, and switching the conduction state of the alarm into a passage state when the power of the grinder reaches an early warning value;
the control circuit is used for switching the starting and stopping states of the grinding machine according to the starting and stopping signals;
and the alarm is used for generating a voice alarm signal and a light alarm signal in the access state.
Further, still include voltage conversion circuit, include:
the ground end of the fourth rectifier bridge is grounded, the input end of the fourth rectifier bridge is respectively connected with a live wire and a zero line of the commercial power, and the output end of the fourth rectifier bridge outputs a first voltage;
a first pin of the AC-DC converter is connected with a live wire of commercial power, a second pin of the AC-DC converter is connected with a zero line of the commercial power, and a third pin of the AC-DC converter is grounded; the fourth pin is connected with a second power capacitor and the anode of a second diode, the cathode of the second power capacitor is connected with the cathode of the second diode and the fifth pin of the AC-DC converter, the cathode of the second diode is grounded, and the anode of the second diode outputs a second voltage; the sixth pin is connected with the first power capacitor and the anode of the first diode, the cathode of the first power capacitor is connected with the cathode of the first diode and the seventh pin of the AC-DC converter, the cathode of the first diode is grounded, and the anode of the first diode outputs a third voltage.
Further, the signal receiver includes first to eighth pins, and the main control chip includes first to twenty-fourth pins, wherein:
the first pin of the signal receiver is connected with the second pin of the signal receiver through the first crystal oscillator, the third pin of the signal receiver is connected with the nineteenth pin of the main control chip, the fourth pin of the signal receiver receives a power signal, the fifth pin of the signal receiver is grounded, the sixth pin of the signal receiver is connected with the eighteenth pin of the main control chip, the seventh pin of the signal receiver is connected with the seventeenth pin of the main control chip, and the eighth pin of the signal receiver is connected with the third voltage.
Further, the control circuit includes:
the first pole of the double-pole four-pole magnetic switch is connected with a first voltage, the second pole and the third pole are connected with the first voltage in parallel, and the fourth pole is connected with the negative pole of the grinding machine; the double poles of the double-pole four-pole magnetic suction switch are respectively connected with the second pin and the third pin of the fifth row of needles; one end of the magnetic attraction piece of the double-pole four-pole magnetic switch is connected with the second voltage and the anode of the third diode, and the other end of the magnetic attraction piece is connected with the collector of the triode and the cathode of the third diode;
the emitter of the third diode is grounded, and the base of the third diode is respectively connected with the fourth resistor and the fourth pin of the light control element through a fifth resistor; the other end of the fourth resistor is connected with a second voltage; the third pin of the light control element is grounded, the second pin is connected with the thirteenth pin of the main control chip, and the first pin is connected with a third voltage.
Further, still include the second in the grinding machine and handle the chip, including first pin to eighth pin, main control chip passes through the second and handles the rotational speed of chip control grinding machine, wherein:
the first pin and the eighth pin of the second processing chip are connected with a second voltage, the second pin is connected with the tenth pin of the main control chip, the third pin is connected with the ninth pin of the main control chip, the fourth pin and the fifth pin are grounded, and the sixth pin is respectively connected with the anode of the fifth diode and one end of the seventh resistor;
the negative electrode of the fifth diode is grounded, and the other end of the seventh resistor is connected with the grid electrode of the field effect transistor; the source electrode of the field effect transistor is grounded through an eighth resistor and is connected with a twentieth pin of the main control chip; the drain electrode of the field effect tube is connected with the negative electrode of the grinding machine; the positive pole of the grinder is connected with a first voltage.
Further, the switching circuit includes a first switch and a second switch, wherein:
one end of the first switch is respectively connected with a second pin of the fourth pin, one end of the first capacitor and a fourteenth pin of the main control chip; the other end of the first switch is respectively connected with the first pin of the fourth pin and the other end of the first capacitor and grounded;
one end of the second switch is respectively connected with one end of the second capacitor and the fifth pin of the main control chip; the other end of the second switch is respectively connected with the other end of the second capacitor and grounded.
Furthermore, the signal receiver is also used for receiving remote control signals and sending the remote control signals to the main control chip, and the main control chip controls the starting and stopping of the grinding machine according to the remote control signals.
Compared with the prior art, the utility model at least has the following beneficial effects:
(1) according to the power self-control circuit of the food waste grinder, the power of the grinder is detected in real time, so that the rotating speed can be switched according to the power change to adapt to working conditions under different conditions;
(2) by setting the control circuit and utilizing the double-pole four-pole magnetic suction switch, the grinder can be turned off by starting and stopping signals under emergency conditions, so that unnecessary loss is avoided;
(3) the signal receiver can receive the switch signal of the grinder, and can control the grinder through a remote control signal, so that the control means of the grinder is added, and the signal receiver can be controlled through a remote means in an emergency.
Drawings
FIG. 1 is a modular schematic diagram of a power self-control circuit of a food waste grinder;
FIG. 2 is a circuit diagram of a voltage conversion circuit;
FIG. 3 is a circuit diagram of a signal receiver and a main control chip;
FIG. 4 is a circuit schematic of the control circuit;
FIG. 5 is a schematic circuit diagram of the grinder;
fig. 6 is a circuit diagram of the switching circuit.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
Example one
In order to effectively treat kitchen garbage and simultaneously avoid damage to a grinder caused in a garbage treatment process, the rotating speed of the grinder is switched according to real-time power, as shown in fig. 1, the utility model provides a power self-control circuit of a food garbage grinder, which comprises:
the switching circuit is used for sending a switching signal to the main control chip;
the grinder is used for feeding back a power signal to the signal receiver under the operation state;
a signal receiver for receiving a power signal of the grinding mill;
the main control chip is used for switching the rotating speed of the grinder or sending a start-stop signal according to the switching signal and the power signal, and switching the conduction state of the alarm into a passage state when the power of the grinder reaches an early warning value;
the control circuit is used for switching the starting and stopping states of the grinding machine according to the starting and stopping signals;
and the alarm is used for generating a voice alarm signal and a light alarm signal in the access state.
Meanwhile, the signal receiver is also used for receiving remote control signals and sending the remote control signals to the main control chip, and the main control chip controls the grinding machine to be started or stopped according to the remote control signals.
Under the no-load state, when the main control chip receives a switching signal or a remote control signal and requires to start the grinder, the main control chip can gradually increase the rotating speed of the grinder to a first gear rotating speed (low speed) with preset power, so that low-speed soft start is realized, and machine shake caused by too fast rotating speed change during start is reduced.
Meanwhile, under the condition of no load, if the grinder is still in a no-load state within the preset time, the main control chip controls the grinder to stop. When the grinder is in a load state (i.e. when the presence of garbage is detected, the power is increased), for example, the power is detected to be greater than 60W (the current is about 0.58A), the main control chip controls the grinder to enter a second gear of rotation speed (high speed), and the power is gradually increased. And when the grinding is finished, the power is gradually reduced from high to low due to the fact that the garbage is processed, and if the power is smaller than 140W (the current is about 0.75A), the grinding machine is controlled to enter a first gear of rotating speed and is shut down within a preset time. Therefore, the switching of different rotating speeds in normal operation and idling states is ensured, and the device is suitable for different working conditions.
Under some special conditions, when the grinder is jammed due to excessive kitchen waste, the power suddenly rises, for example, the power rises to 550W (about 2.9A-3A), the main control chip controls the grinder to switch forward and reverse to operate for a certain time after delaying for a period of time, after a plurality of reverse cycles, if the power drops below 550W, normal operation is continued, otherwise, forward and reverse rotation is continued until the power drops or the forward and reverse rotation time reaches the set time (for example, 5 min).
When the grinder is completely stuck, the power is increased to 1000W at the moment, and the power exceeds the standard for a certain time, the main control chip sends a start-stop signal to the control circuit to control the grinder to be powered off, so that the motor in a long-time high-power load state is prevented from being damaged, and meanwhile, the alarm is turned on to give corresponding warning. In order to avoid motor damage caused by long-time operation, the main control chip can also actively stop the grinding machine after the grinding machine continuously operates for a period of time, so that motor strain caused by continuous operation is avoided.
It should be noted that the specific values and standard values described in the above embodiments are only one implementation sample in the present embodiment, and in actual operation, the values may be adjusted according to actual requirements. The above description is only for describing the specific functions of the circuit of the present invention, and the circuit thereof will be described below.
As shown in fig. 2, considering that the household electric appliances cannot directly use the commercial power, the power self-control circuit of the grinding machine according to the present invention further includes a voltage conversion circuit, including:
a fourth rectifier bridge (D4), the ground terminal of which is grounded (MOTO _ GND), the input terminals of which are respectively connected with the live wire (L) and the zero wire (N) of the commercial power, and the output terminal of which outputs the first voltage (DC 300V);
a first pin of the AC-DC converter (PO1) is connected with a live wire of a commercial power, a second pin is connected with a zero line of the commercial power, and a third pin is grounded; the fourth pin is connected with the anode of a second power capacitor (CE2) and the cathode of a second diode (D2), the cathode of the second power capacitor is connected with the cathode of the second diode and the fifth pin of the AC-DC converter, the cathode of the second diode is grounded, and the anode of the second diode outputs a second voltage (DC 15V); the sixth pin is connected with a first power capacitor (CE1) and the anode of a first diode (D1), the cathode of the first power capacitor is connected with the cathode of the first diode and the seventh pin of the AC-DC converter, the cathode of the first diode is grounded, and the anode of the first diode outputs a third voltage (DC 5V).
As shown in fig. 3, the signal receiver (U2) includes first to eighth pins, and the main control chip (U1) includes first to twenty-fourth pins, wherein:
the first pin of the signal receiver is connected with the second pin of the signal receiver through a first crystal oscillator (X1), the third pin of the signal receiver is connected with the nineteenth pin of the main control chip, the fourth pin of the signal receiver receives a power signal (Socket), the fifth pin of the signal receiver is grounded (GND-MCU), the sixth pin of the signal receiver is connected with the eighteenth pin of the main control chip, the seventh pin of the signal receiver is connected with the seventeenth pin of the main control chip, and the eighth pin of the signal receiver is connected with a third voltage.
As shown in fig. 4, the control circuit includes:
a double-pole four-pole magnetic switch (K1), wherein the first pole of the double-pole four-pole magnetic switch is connected with a first voltage, the second pole and the third pole are connected in parallel with the first voltage, and the fourth pole is connected with the negative pole (M-) of the grinder; the double poles of the double-pole four-pole magnetic switch are respectively connected with a second pin and a third pin of a fifth row of pins (P5); one end of the magnetic attraction piece of the double-pole four-pole magnetic attraction switch is connected with the second voltage and the anode of the third diode (D3), and the other end of the magnetic attraction piece is connected with the collector of the triode (Q2) and the cathode of the third diode;
the emitter of the third diode is Grounded (GND), and the base of the third diode is respectively connected with the fourth resistor (R4) and the fourth pin of the light control element (PH1) through a fifth resistor (R5); the other end of the fourth resistor is connected with a second voltage; the third pin of the light control element is grounded, the second pin is connected with the thirteenth pin of the main control chip, and the first pin is connected with a third voltage.
As shown in fig. 5, the grinder further includes a second processing chip (U3) including a first pin to an eighth pin, the main control chip controls the rotation speed of the grinder through the second processing chip, wherein:
the first pin and the eighth pin of the second processing chip are connected with a second voltage, the second pin is connected with the tenth pin of the main control chip, the third pin is connected with the ninth pin of the main control chip, the fourth pin and the fifth pin are Grounded (GND), and the sixth pin is respectively connected with the anode of a fifth diode (D5) and one end of a seventh resistor (R7);
the negative electrode of the fifth diode is grounded, and the other end of the seventh resistor is connected with the grid electrode of a field effect transistor (Q3); the source electrode of the field effect transistor is grounded through an eighth resistor (R8) and is connected with a twentieth pin of the main control chip; the drain electrode of the field effect tube is connected with the negative electrode of the grinding machine; the positive pole (M +) of the grinder is connected with a first voltage.
As shown in fig. 6, the switching circuit includes a first switch (S1) and a second switch (S2), wherein:
one end of the first switch is respectively connected with the second pin of the fourth pin (P4), one end of the first capacitor (C1) and the fourteenth pin of the main control chip; the other end of the first switch is respectively connected with the first pin of the fourth pin and the other end of the first capacitor and grounded;
one end of the second switch is respectively connected with one end of the second capacitor (C2) and the fifth pin of the main control chip; the other end of the second switch is respectively connected with the other end of the second capacitor and grounded.
In summary, the power self-control circuit of the food waste grinder provided by the utility model can switch the rotating speed according to the power change by detecting the power of the grinder in real time so as to adapt to the working conditions under different conditions.
Through control circuit's setting, utilize double-pole quadrupole magnetism to inhale the switch, can be under emergency, through reset signal shutoff grinding machine, avoid causing the unnecessary loss.
The signal receiver can receive the switch signal of the grinder, and can control the grinder through a remote control signal, so that the control means of the grinder is added, and the signal receiver can be controlled through a remote means in an emergency.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
Moreover, descriptions of the present invention as relating to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Claims (7)
1. A power self-control circuit for a food waste grinder, comprising:
the switching circuit is used for sending a switching signal to the main control chip;
the grinder is used for feeding back a power signal to the signal receiver under the operation state;
a signal receiver for receiving a power signal of the grinding mill;
the main control chip is used for switching the rotating speed of the grinder or sending a start-stop signal according to the switching signal and the power signal, and switching the conduction state of the alarm into a passage state when the power of the grinder reaches an early warning value;
the control circuit is used for switching the starting and stopping states of the grinding machine according to the starting and stopping signals;
and the alarm is used for generating a voice alarm signal and a light alarm signal in the access state.
2. The power self-control circuit of a food waste grinder of claim 1, further comprising a voltage conversion circuit comprising:
the ground end of the fourth rectifier bridge is grounded, the input end of the fourth rectifier bridge is respectively connected with a live wire and a zero line of the commercial power, and the output end of the fourth rectifier bridge outputs a first voltage;
a first pin of the AC-DC converter is connected with a live wire of commercial power, a second pin of the AC-DC converter is connected with a zero line of the commercial power, and a third pin of the AC-DC converter is grounded; the fourth pin is connected with a second power capacitor and the anode of a second diode, the cathode of the second power capacitor is connected with the cathode of the second diode and the fifth pin of the AC-DC converter, the cathode of the second diode is grounded, and the anode of the second diode outputs a second voltage; the sixth pin is connected with the first power capacitor and the anode of the first diode, the cathode of the first power capacitor is connected with the cathode of the first diode and the seventh pin of the AC-DC converter, the cathode of the first diode is grounded, and the anode of the first diode outputs a third voltage.
3. The power self-control circuit of the food waste grinder of claim 2, wherein the signal receiver includes first to eighth pins, and the main control chip includes first to twenty-fourth pins, wherein:
the first pin of the signal receiver is connected with the second pin of the signal receiver through the first crystal oscillator, the third pin of the signal receiver is connected with the nineteenth pin of the main control chip, the fourth pin of the signal receiver receives a power signal, the fifth pin of the signal receiver is grounded, the sixth pin of the signal receiver is connected with the eighteenth pin of the main control chip, the seventh pin of the signal receiver is connected with the seventeenth pin of the main control chip, and the eighth pin of the signal receiver is connected with the third voltage.
4. The power self-control circuit of a food waste grinder of claim 3, wherein the control circuit comprises:
the first pole of the double-pole four-pole magnetic switch is connected with a first voltage, the second pole and the third pole are connected with the first voltage in parallel, and the fourth pole is connected with the negative pole of the grinding machine; the double poles of the double-pole four-pole magnetic suction switch are respectively connected with the second pin and the third pin of the fifth row of needles; one end of the magnetic attraction piece of the double-pole four-pole magnetic switch is connected with the second voltage and the anode of the third diode, and the other end of the magnetic attraction piece is connected with the collector of the triode and the cathode of the third diode;
the emitter of the third diode is grounded, and the base of the third diode is respectively connected with the fourth resistor and the fourth pin of the light control element through a fifth resistor; the other end of the fourth resistor is connected with a second voltage; the third pin of the light control element is grounded, the second pin is connected with the thirteenth pin of the main control chip, and the first pin is connected with a third voltage.
5. The power self-control circuit of a food waste grinder of claim 3, further comprising a second processing chip including a first pin to an eighth pin, the main control chip controlling a rotation speed of the grinder through the second processing chip, wherein:
the first pin and the eighth pin of the second processing chip are connected with a second voltage, the second pin is connected with the tenth pin of the main control chip, the third pin is connected with the ninth pin of the main control chip, the fourth pin and the fifth pin are grounded, and the sixth pin is respectively connected with the anode of the fifth diode and one end of the seventh resistor;
the negative electrode of the fifth diode is grounded, and the other end of the seventh resistor is connected with the grid electrode of the field effect transistor; the source electrode of the field effect transistor is grounded through an eighth resistor and is connected with a twentieth pin of the main control chip; the drain electrode of the field effect tube is connected with the negative electrode of the grinding machine; the positive pole of the grinder is connected with a first voltage.
6. The power self-control circuit of a food waste grinder of claim 3, wherein the switching circuit comprises a first switch and a second switch, wherein:
one end of the first switch is respectively connected with a second pin of the fourth pin, one end of the first capacitor and a fourteenth pin of the main control chip; the other end of the first switch is respectively connected with the first pin of the fourth pin and the other end of the first capacitor and grounded;
one end of the second switch is respectively connected with one end of the second capacitor and the fifth pin of the main control chip; the other end of the second switch is respectively connected with the other end of the second capacitor and grounded.
7. The power self-control circuit of claim 1, wherein the signal receiver is further configured to receive a remote control signal and transmit the remote control signal to the main control chip, and the main control chip controls the grinder to start or stop according to the remote control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121006958.3U CN215612285U (en) | 2021-05-12 | 2021-05-12 | Power self-control circuit of food waste grinder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121006958.3U CN215612285U (en) | 2021-05-12 | 2021-05-12 | Power self-control circuit of food waste grinder |
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| Publication Number | Publication Date |
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| CN215612285U true CN215612285U (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121006958.3U Active CN215612285U (en) | 2021-05-12 | 2021-05-12 | Power self-control circuit of food waste grinder |
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- 2021-05-12 CN CN202121006958.3U patent/CN215612285U/en active Active
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