CN216851339U - Constant power output circuit of sealing machine and sealing machine - Google Patents
Constant power output circuit of sealing machine and sealing machine Download PDFInfo
- Publication number
- CN216851339U CN216851339U CN202122980095.6U CN202122980095U CN216851339U CN 216851339 U CN216851339 U CN 216851339U CN 202122980095 U CN202122980095 U CN 202122980095U CN 216851339 U CN216851339 U CN 216851339U
- Authority
- CN
- China
- Prior art keywords
- circuit
- power supply
- sealing machine
- battery
- switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model belongs to the technical field of sealing machines, and particularly relates to a constant power output circuit of a sealing machine and the sealing machine, wherein the constant power output circuit comprises a power supply circuit, a constant power output control circuit, a battery charging circuit and a sealing machine output circuit; the constant power output control circuit comprises an MCU control chip, and the MCU control chip is connected with the power supply circuit; the battery charging circuit is connected with the constant power output control circuit and the power supply circuit and is used for converting charging voltage into rated voltage matched with a power supply battery; the output circuit of the sealing machine comprises a heating control circuit and a vacuum pump control circuit, the MCU control chip is connected with the heating control circuit and the vacuum pump control circuit, and the heating control circuit and the vacuum pump control circuit are both connected with the power supply circuit; and controlling and adjusting the sealing time according to the change of the power supply voltage to realize the constant power output of the circuit.
Description
Technical Field
The utility model belongs to the technical field of sealing machines, and particularly relates to a constant power output circuit of a sealing machine and the sealing machine.
Background
The sealing machine is a machine for sealing containers filled with packing materials, and after products are placed into the packing containers, the packing containers need to be sealed in order to keep the products in a sealed mode, product quality is kept, product loss is avoided, and the operation is finished on the sealing machine.
At present, the existing sealing machines are classified in a power supply mode, and comprise a sealing machine with high voltage power supply and a sealing machine with battery power supply, the sealing machine with battery power supply on the market has the defects that the fluctuation of the battery power supply voltage is large, the power supply voltage of a battery changes, the output power of the sealing machine is changed accordingly, the constant power output like high voltage power supply cannot be realized, and the stability of the electric energy output of the sealing machine is poor. Therefore, there is a need for a constant power output circuit of a sealing machine and a sealing machine.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a constant power output circuit of a sealing machine and the sealing machine, and aims to solve the technical problems that the electric energy output of the sealing machine is unstable due to large power supply voltage fluctuation and unstable output power of a battery of the sealing machine in the prior art.
In order to achieve the above object, an embodiment of the present invention provides a constant power output circuit for a sealing machine, including a power supply circuit, a constant power output control circuit, a battery charging circuit, and a sealing machine output circuit. The power supply circuit is used for supplying power to the constant power output circuit of the sealing machine; the constant power output control circuit comprises an MCU control chip, and the MCU control chip is connected with the power supply circuit; the battery charging circuit is connected with the constant power output control circuit and the power supply circuit, and is used for converting charging voltage into rated voltage of a power supply battery matched with the power supply circuit; the output circuit of the sealing machine comprises a heating control circuit and a vacuum pump control circuit, the MCU control chip is connected with the heating control circuit and the vacuum pump control circuit, and the heating control circuit and the vacuum pump control circuit are connected with the power supply circuit.
Optionally, the heating control circuit includes a heating control MOS tube, a heater, a second triode, a third triode and a fourth triode, the third triode with the MCU control chip is connected, the third triode still with the second triode is connected, the second triode with the fourth triode is connected, the fourth triode with the heating control MOS tube is connected, the heating control MOS tube with the heater is connected, the heater still with the power supply circuit is connected.
Optionally, the vacuum pump control circuit includes a vacuum pump, a second diode and a first MOS transistor, the first MOS transistor is connected to the MCU control chip, the first MOS transistor is further connected to the second diode and the vacuum pump, and the vacuum pump is further connected to the power supply circuit.
Optionally, the power supply circuit includes an MCU power supply circuit, a battery power supply end and a USB connection end, the MCU power supply circuit includes a voltage stabilization chip, an input end of the voltage stabilization chip is connected to the battery power supply end and the USB connection end, and an output end of the voltage stabilization chip is connected to an MCU power supply end.
Optionally, the battery charging circuit includes a battery charging chip, a fourth diode and a first inductor, the input end of the battery charging chip is connected with the MCU control chip and the USB connection end, the USB connection end is further connected with one end of the first inductor, the other end of the first inductor is connected with the battery power supply end, and the output end of the battery charging chip is connected with the battery power supply end after passing through the fourth diode.
Optionally, the MCU control system further comprises an interface circuit, wherein the interface circuit comprises a USB interface, a burning interface and a pneumatic switch interface, the USB interface is connected with the USB connecting end, and the burning interface and the pneumatic switch interface are both connected with the MCU control chip.
Optionally, the temperature detection circuit comprises a heating wire thermistor and a battery thermistor, and the heating wire thermistor and the battery thermistor are both connected with the MCU control chip.
Optionally, the MCU control chip further comprises a key indicating circuit, wherein the key indicating circuit comprises a first switch, a second switch, a third switch, a fourth switch and a fifth switch, and the first switch, the second switch, the third switch, the fourth switch and the fifth switch are all connected with the MCU control chip; the first switch is connected with a first light emitting diode and a sixth light emitting diode, the second switch is connected with a second light emitting diode and a seventh light emitting diode, the third switch is connected with a third light emitting diode and an eighth light emitting diode, the fourth switch is connected with a fourth light emitting diode and a ninth light emitting diode, and the fifth switch is connected with a fifth light emitting diode and a tenth light emitting diode.
Optionally, the detection circuit further comprises a detection circuit, the detection circuit comprises a hall sensor, a current detection resistor and a battery voltage detection circuit, the hall sensor is connected with the MCU control chip and the power supply circuit, the hall sensor is used for detecting and judging whether the upper cover of the sealing machine is well buckled through a magnetic field, the current detection resistor is connected with the heating control circuit and the MCU control chip, and the battery voltage detection circuit is connected with the MCU control chip.
One or more technical solutions in the constant power output circuit of the sealing machine provided by the embodiment of the utility model at least have one of the following technical effects:
according to the utility model, by arranging the constant power output control circuit, the work required by the heating control circuit to finish the sealing operation can be obtained by acquiring the heating power of the heating control circuit and the time for finishing the sealing under the heating power according to the Joule law W (Pt), and the constant power output control circuit controls and adjusts the sealing time according to the change of the power supply voltage under the state of constant work, so that the constant power output of the circuit is realized; the power supply circuit supplies power through the battery, the MCU control chip presets a power supply voltage value, when the power supply voltage of the battery is lower than a preset value, the power supply voltage of the battery is prompted to be too low, and the battery charging circuit charges the battery.
The utility model also provides a sealing machine which comprises the constant power output circuit of the sealing machine.
One or more technical solutions in the sealing machine provided by the embodiment of the present invention at least have one of the following technical effects:
because the sealing machine comprises the sealing machine constant power output circuit, the sealing machine constant power output circuit can also realize that the constant power output control circuit controls and adjusts the sealing time in the use process, and the constant power output of the circuit is realized.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic circuit diagram of a constant power output circuit of a sealing machine according to an embodiment of the present invention;
FIG. 2 is a schematic circuit diagram of an output circuit of a sealing machine according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a battery charging circuit according to an embodiment of the present invention.
Wherein, in the figures, the various reference numbers:
power supply circuit-100 MCU power supply circuit-110 constant power output control circuit-200
Vacuum pump control circuit-420 interface circuit-500 temperature detection circuit-600
Key indicator circuit-700 sensing circuit-800 battery voltage sensing circuit-810.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the embodiments of the present invention and should not be construed as limiting the utility model.
In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
In one embodiment of the present invention, as shown in fig. 1 to 3, a constant power output circuit of a sealing machine is provided, which includes a power supply circuit 100, a constant power output control circuit 200, a battery charging circuit 300 and a sealing machine output circuit 400. The power supply circuit 100 comprises a power supply battery, and the power supply circuit 100 is used for supplying power to the constant power output circuit of the sealing machine; the constant power output control circuit 200 comprises an MCU control chip U2, and the MCU control chip U2 is connected with the power supply circuit 100; the battery charging circuit 300 is connected with the constant power output control circuit 200 and the power supply circuit 100, and the battery charging circuit 300 is used for converting a charging voltage into a rated voltage matched with the power supply battery; the sealing machine output circuit 400 comprises a heating control circuit 410 and a vacuum pump control circuit 420, the MCU control chip U2 is connected with the heating control circuit 410 and the vacuum pump control circuit 420, and the heating control circuit 410 and the vacuum pump control circuit 420 are both connected with the power supply circuit 100.
According to the utility model, by arranging the constant power output control circuit 200, the work required by the heating control circuit 410 to finish the sealing operation can be obtained by obtaining the heating power of the heating control circuit 410 and the time for finishing the sealing under the heating power according to the Joule law W-Pt, and the constant power output control circuit 200 controls and adjusts the sealing time according to the change of the power supply voltage under the state of constant work, so as to realize the constant power output of the circuit; the power supply circuit 100 supplies power through a battery, the MCU control chip U2 presets a power supply voltage value, and when the power supply voltage of the battery is lower than a preset value, the battery charging circuit 300 charges the battery.
Specifically, in another embodiment of the present invention, as shown in fig. 1 and 2, the heating control circuit 410 includes a heating control MOS transistor U3, a heating wire P5, a second transistor Q2, a third transistor Q3 and a fourth transistor Q4. The base electrode of the third triode Q3 is connected with the tenth pin of the MCU control chip U2, the collector electrode of the third triode Q3 is connected with the base electrode of the second triode Q2, and the emitter electrode of the third triode Q3 is grounded. The collector of the second triode Q2 is connected to the power supply circuit 100, the collector of the second diode Q2 is connected to the base of the fourth triode Q4, one end of a third diode D3 is connected to the base of the fourth triode Q4, and the other end of the third diode D3 is connected to the emitter of the fourth triode Q4. The collector of the fourth transistor Q4 is grounded, and the emitter of the fourth transistor Q4 is connected to the fourth pin of the heat generation control MOS transistor U3. The fifth pin, the sixth pin, the seventh pin and the eighth pin of the heating control MOS tube U3 are all connected with the heater P5, and the heater P5 is also connected with the power supply circuit 100. MCU control chip U2 through a plurality of triodes after with the control MOS pipe U3 that generates heat is connected, by MCU control chip U2 sends control signal extremely in the control MOS pipe U3 that generates heat, just the control MOS pipe U3 that generates heat with heater P5 connects, and then the realization by MCU control chip U2 control heater P5's heat time.
Further, the vacuum pump control circuit 420 includes a vacuum pump P3, a second diode D2, and a first MOS transistor Q1. The grid of first MOS pipe Q1 with MCU control chip U2's second pin is connected, receives MCU control chip U2's control signal, first MOS pipe Q1's source ground connection, the drain electrode of first MOS pipe still with second diode D2's positive pole with vacuum pump P3's first pin is connected, vacuum pump P3's second pin with second diode D2's negative pole with power supply circuit 100 connects, second diode D2 prevents the electric current refluence, protection circuit. The MCU control chip U2 is connected with the vacuum pump P3 after passing through the first MOS transistor Q1, so that the work of the vacuum pump P3 is controlled by the MCU control chip U2.
Specifically, in another embodiment of the present invention, as shown in fig. 1, the power supply circuit 100 includes an MCU power supply circuit 110, a battery power supply terminal BAT and a USB connection terminal 5V, the MCU power supply circuit 110 includes a voltage regulation chip U1, an input terminal of the voltage regulation chip U1 is connected to the battery power supply terminal BAT and the USB connection terminal 5V, and an output terminal of the voltage regulation chip is connected to an MCU power supply terminal 3.3V. The input end of the voltage stabilizing chip U1 is connected with the USB connecting end and the battery power supply end BAT, the battery power supply end is connected with the power supply battery, the output end of the voltage stabilizing chip U1 is connected with the MCU power supply end 3.3V, 5V voltage signals are input from the USB connecting end and 7.4V voltage signals are input from the battery power supply end respectively, 3.3V power supply voltage is obtained after voltage reduction is carried out through the voltage stabilizing chip U1, the voltage is output to the MCU power supply end 3.3V, and power supply is carried out on the MCU control chip.
Specifically, in another embodiment of the present invention, as shown in fig. 1 and fig. 3, the battery charging circuit 300 includes a battery charging chip U5, a fourth diode D4 and a first inductor L1, a first pin of the battery charging chip U5 is connected to the USB connection terminal 5V and a sixth pin of the MCU control chip U2, and a fourth pin of the battery charging chip U5 is connected to a ninth pin of the MCU control chip U2. The USB connecting end 5V is further connected with one end of a first inductor L1, the other end of the first inductor L1 is connected with the anode of a fourth diode D4, a fifth pin, a sixth pin, a seventh pin and an eighth pin of a battery charging chip U5 are connected with the anode of a fourth diode D4, and the cathode of the fourth diode D4 is connected with a battery power supply terminal BAT. The MCU control chip U2 is connected with the battery charging chip U5, when the MCU control chip detects that the voltage of the battery power supply terminal BAT is lower than a preset value, the battery charging chip U5 is controlled to be charged, and then the USB connecting end 5V is matched with the battery charging chip U5 and the first inductor L1 to boost the voltage to charge the battery.
Specifically, in another embodiment of the present invention, as shown in fig. 1, the present invention further includes an interface circuit 500, where the interface circuit 500 includes a USB interface P8, a burn interface P7, and a pneumatic switch interface P6. USB interface P8 is connected with USB link 5V, through setting up USB interface P8 provides the interface for outside USB, insert to in the capper constant power output circuit. The air pressure switch interface P6 is connected with a fifth pin of the MCU control chip U2 and is used for connecting vacuum cavity air pressure detection equipment. The burning interface P7 is connected with the fourth pin, the fifth pin, the sixth pin, the seventh pin and the eighth pin of the MCU control chip U2, and provides a burning connection terminal for the constant power output circuit of the sealing machine, so that the program can be burned after the constant power output circuit is connected to an external device.
Specifically, in another embodiment of the present invention, as shown in fig. 1, the present invention further includes a temperature detection circuit 600, the temperature detection circuit 600 includes a heater thermistor P1 and a battery thermistor P2, the heater thermistor P1 is connected to the eighteenth pin of the MCU control chip U2, and the battery thermistor P2 is connected to the nineteenth pin of the MCU control chip, so as to respectively feed back the heater temperature and the battery temperature detected by the thermistor to the MCU control chip U2.
Specifically, in another embodiment of the present invention, as shown in fig. 1, a key indication circuit 700 is further included, and the key indication circuit 700 includes a first switch S1, a second switch S2, a third switch S3, a fourth switch S4, and a fifth switch S5. The first switch S1, the second switch S2, the third switch S3, the fourth switch S4 and the fifth switch S5 are all connected with the MCU control chip U2, signals are sent to the MCU control chip U2 by pressing different switches, and operation of the sealing machine is selected according to requirements. The first switch S1 is connected to a first LED1 and a sixth LED2, the second switch S2 is connected to a second LED2 and a seventh LED7, the third switch S3 is connected to a third LED3 and an eighth LED8, the fourth switch S4 is connected to a fourth LED4 and a ninth LED9, and the fifth switch S5 is connected to a fifth LED5 and a tenth LED 10. The first light emitting diode LED1, the second light emitting diode LED2, the third light emitting diode LED3, the fourth light emitting diode LED4 and the fifth light emitting diode are indicating lamps which respectively indicate a dry mode vacuum sealing key, a wet mode vacuum sealing key, a stop key, a single sealing key and an external pumping/inching key in the sealing machine; the sixth light emitting diode LED2, the seventh light emitting diode LED7, the eighth light emitting diode LED8, the ninth light emitting diode LED9 and the tenth light emitting diode LED10 are water-flowing lamps, and are used for displaying a working state and a charging state.
In another embodiment of the present invention, as shown in fig. 1, the detection circuit 800 further includes a detection circuit 800, where the detection circuit 800 includes a hall sensor U4, a current detection resistor RC1, and a battery voltage detection circuit 810, the hall sensor U4 is connected to the MCU control chip U2 and the power supply circuit 100, the hall sensor U4 is used to determine whether the upper cover of the sealing machine is fastened through magnetic field detection, the current detection resistor RC1 is connected to the heating control circuit 410 and the MCU control chip U2, and the battery voltage detection circuit 810 is connected to the MCU control chip U2.
The Hall sensor U4 is connected with a third pin of the MCU control chip U2, and the Hall sensor U4 is used for judging whether the upper cover of the sealing machine is well buckled through magnetic field detection, feeding the upper cover back to the MCU control chip U2 and judging whether the cover of the sealing machine is normally closed. Specifically, a magnet is arranged inside a lower cover of the sealing machine, a hall sensor U4 is arranged on an upper cover of the sealing machine, when the upper cover of the sealing machine is buckled, the magnet is close to the hall sensor U4, the hall sensor U4 receives a signal and then feeds back the signal to the MCU control chip U2 to inform the MCU control chip U2 of other work, if the cover of the sealing machine is not buckled, namely the hall sensor U4 does not sense the magnet, then the signal is fed back to the MCU control chip U2 to inform the MCU control chip U2 that the cover of the sealing machine is not buckled and other work is not allowed to be executed.
Further, the battery voltage detection circuit 810 comprises a battery input port P4, an eighteenth resistor R18 and a twentieth resistor R20, the battery input port P4 is connected to the battery voltage, and after the voltage is divided by the eighteenth resistor R18 and the twentieth resistor R20, the seventeenth pin of the MCU control chip U2 is connected. The MCU control chip U2 obtains the voltage that can be directly detected, when the battery voltage changes, the voltage after voltage division also changes, and the change of the actual voltage of the battery is judged by detecting the voltage after voltage division.
Furthermore, one end of the current detection resistor RC1 is connected to the first pin, the second pin and the third pin of the heating control MOS tube U3, the other end of the current detection resistor RC1 is grounded, one end of the current detection resistor RC1 is also connected to the sixteenth pin of the MCU control chip U2, the voltage value of the current detection resistor RC1 is input to the MCU control chip U2, and the MCU control chip U2 performs current conversion according to the voltage value to obtain a real-time working current value.
Specifically, in this embodiment, the sealing machine is powered by using a battery, two 18650 lithium batteries are used, and the voltage of the battery when the battery is fully charged is 8.4V. When the no-load voltage of the battery is reduced to below 7V, the linear capacity of the battery under load is reduced, so that the sealing machine stops working, when the detection circuit 800 detects that the battery voltage is lower than 7.0V, the constant power output control circuit 200 controls the indicator light to prompt that the battery voltage is low and needs to be charged, and the water lamp of the key indicator circuit 700 flickers in the charging process to indicate that the sealing machine is in a charging state and control all keys to be unusable.
In this embodiment, the heating power of the heating wire P5 is 60W, and since the sealing machine is powered by a lithium battery, the fluctuation of the battery supply voltage is large, the power output by the heating wire P5 will also change accordingly, and the constant power output cannot be realized. Further, under the heating power of 60W, the heating wire needs to complete the sealing operation after 15 seconds, so the heating wire under the heating power does work for 60W 15s, and 900J of work needs to be output.
The resistance value of the heating wire P5 is 1R, and the full-electricity voltage of the battery is 8.4V, so the power at the full-electricity is 8.4V/1R, namely the power of the heating wire P5 at the full-electricity is 71W, therefore, the required sealing time is 900J/71W, and the sealing operation needs 12.68 s.
As the more times of use in a short time, the residual temperature of the sealing machine still exists, and the sealing time under different interval time states is correspondingly shortened. Specifically, through the single sealing key of the key indication circuit 700, the corresponding indicator light is turned on, and the heating time for starting the single sealing is 15 seconds. When the time interval for continuously operating this key is 0 to 90 seconds, the heating time is linearly changed from 11 seconds to 15 seconds. When the time interval exceeds 91 seconds, the normal heating time is restored to 15 seconds.
In the fully charged state of the battery, when the time interval of continuous operation is from 0 to 90 seconds, the heating time is compressed to linearly change from 11 × 12.68/15 to 9.3 seconds to 12.68 seconds, and the longer the time interval is, the longer the heating time is. When the time interval exceeds 91 seconds, the normal heating time is recovered to 12.68 seconds
Further, similarly, when the voltage of the battery is reduced to 8.0V, the power of the machine during operation is: 8V/1R 64W, its sealing time is 900J/64W 14.1 seconds.
In the state that the battery voltage is 8V, considering the residual heat of the heating element of the product after use, when the time interval of continuously operating the key is 0 to 90 seconds, the heating time is linearly changed from 11 × 14.1/15 to 10.34 seconds to 14.1 seconds, the longer the interval time is, the longer the heating time is, and when the time interval exceeds 91 seconds, the normal heating is recovered to 14.1 seconds.
Still further, similarly, when the battery voltage drops to 7.5V, then the power of the machine at the time of operation is: 7.5V × 7.5V/1R ═ 56.3W, then its seal time is: 900J/56.3W 16 seconds.
Under the state that the battery voltage is 7.5V, considering the residual heat of the heating body of the used product, when the time interval of continuously operating the key is 0 to 90 seconds, the heating time is reduced to 11 × 16/15 which is linearly changed from 11.7 seconds to 16 seconds, and the longer the interval time is, the longer the heating time is; when the time interval exceeds 91 seconds, the heating is recovered to the normal heating for 16 seconds.
Further, when the voltage of the battery is reduced to 7V, then the power of the machine is: 7 × 7/1 ═ 49W, then its seal time is: 900/49 for 18.37 seconds.
Under the condition that the battery voltage is 7V, the heating element has residual heat in consideration of each use, when the time interval of continuously operating the key is 0-90 seconds, the heating time is reduced to linearly change from 11 × 18.37/15-13.47-18.37 seconds, and the longer the interval time is, the longer the heating time is; when the time interval exceeds 91 seconds, the normal heating is recovered for 18.37 seconds.
Therefore, when the working powers of the heating wires with different voltages are different, the constant power output of the sealing machine is realized by controlling and adjusting different sealing time; when the machine is used, the heating body has residual heat, and the sealing time is further adjusted through intelligent processing control, so that the sealing machine can exert the best state in the whole using process.
The utility model also provides a sealing machine which comprises the constant power output circuit of the sealing machine.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A constant power output circuit of a sealing machine is characterized by comprising:
the power supply circuit comprises a power supply battery and is used for supplying power to the constant power output circuit of the sealing machine;
the constant power output control circuit comprises an MCU control chip, and the MCU control chip is connected with the power supply circuit;
the battery charging circuit is connected with the constant power output control circuit and the power supply circuit, and is used for converting charging voltage into rated voltage matched with the power supply battery;
the sealing machine output circuit comprises a heating control circuit and a vacuum pump control circuit, the MCU control chip is connected with the heating control circuit and the vacuum pump control circuit, and the heating control circuit and the vacuum pump control circuit are connected with the power supply circuit.
2. The constant power output circuit of the sealing machine according to claim 1, wherein the heating control circuit comprises a heating control MOS tube, a heating wire, a second triode, a third triode and a fourth triode, the third triode is connected with the MCU control chip, the third triode is further connected with the second triode, the second triode is connected with the fourth triode, the fourth triode is connected with the heating control MOS tube, the heating control MOS tube is connected with the heating wire, and the heating wire is further connected with the power supply circuit.
3. The constant-power output circuit of the sealing machine according to claim 2, wherein the vacuum pump control circuit comprises a vacuum pump, a second diode and a first MOS (metal oxide semiconductor) tube, the first MOS tube is connected with the MCU control chip, the first MOS tube is further connected with the second diode and the vacuum pump, and the vacuum pump is further connected with the power supply circuit.
4. The constant power output circuit of a sealing machine according to claim 1, wherein the power supply circuit comprises an MCU power supply circuit, a battery power supply terminal and a USB connection terminal, the MCU power supply circuit comprises a voltage stabilization chip, an input terminal of the voltage stabilization chip is connected to the battery power supply terminal and the USB connection terminal, the battery power supply terminal is connected to the power supply battery, and an output terminal of the voltage stabilization chip is connected to an MCU power supply terminal.
5. The constant power output circuit of the sealing machine according to claim 4, wherein the battery charging circuit comprises a battery charging chip, a fourth diode and a first inductor, the input end of the battery charging chip is connected with the MCU control chip and the USB connection end, the USB connection end is further connected with one end of the first inductor, the other end of the first inductor is connected with the battery power supply end, and the output end of the battery charging chip is connected with the battery power supply end through the fourth diode.
6. The constant-power output circuit of the sealing machine according to claim 4, further comprising an interface circuit, wherein the interface circuit comprises a USB interface, a burning interface and a pneumatic switch interface, the USB interface is connected with the USB connection end, and the burning interface and the pneumatic switch interface are both connected with the MCU control chip.
7. The constant power output circuit of the sealing machine according to any one of claims 1 to 6, further comprising a temperature detection circuit, wherein the temperature detection circuit comprises a heating wire thermistor and a battery thermistor, and both the heating wire thermistor and the battery thermistor are connected with the MCU control chip.
8. The constant power output circuit of the sealing machine of any one of claims 1 to 6, further comprising a key indication circuit, wherein the key indication circuit comprises a first switch, a second switch, a third switch, a fourth switch and a fifth switch, and the first switch, the second switch, the third switch, the fourth switch and the fifth switch are all connected with the MCU control chip; the first switch is connected with a first light emitting diode and a sixth light emitting diode, the second switch is connected with a second light emitting diode and a seventh light emitting diode, the third switch is connected with a third light emitting diode and an eighth light emitting diode, the fourth switch is connected with a fourth light emitting diode and a ninth light emitting diode, and the fifth switch is connected with a fifth light emitting diode and a tenth light emitting diode.
9. The constant power output circuit of the sealing machine according to any one of claims 1 to 6, further comprising a detection circuit, wherein the detection circuit comprises a hall sensor, a current detection resistor and a battery voltage detection circuit, the hall sensor is connected with the MCU control chip and the power supply circuit, the hall sensor is used for judging whether the upper cover of the sealing machine is well fastened through magnetic field detection, the current detection resistor is connected with the heating control circuit and the MCU control chip, and the battery voltage detection circuit is connected with the MCU control chip.
10. A sealing machine comprising a constant work output circuit of the sealing machine of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122980095.6U CN216851339U (en) | 2021-11-30 | 2021-11-30 | Constant power output circuit of sealing machine and sealing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122980095.6U CN216851339U (en) | 2021-11-30 | 2021-11-30 | Constant power output circuit of sealing machine and sealing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216851339U true CN216851339U (en) | 2022-06-28 |
Family
ID=82104909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122980095.6U Active CN216851339U (en) | 2021-11-30 | 2021-11-30 | Constant power output circuit of sealing machine and sealing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216851339U (en) |
-
2021
- 2021-11-30 CN CN202122980095.6U patent/CN216851339U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3347939B1 (en) | Battery with a voltage regulation device | |
| CN110546847A (en) | Battery with voltage regulating device | |
| CN216851339U (en) | Constant power output circuit of sealing machine and sealing machine | |
| CN108430140A (en) | A kind of PWM modulation LED drive circuit with power failure memory function | |
| CN211405868U (en) | Output-adjustable booster circuit, illuminating lamp and fan | |
| CN210188783U (en) | Portable electric welding machine | |
| CN114039391A (en) | Large-current starting storage battery charger adopting microprocessor control technology | |
| CN100369353C (en) | Charger for cell | |
| CN208888619U (en) | The motor control module of shaver control circuit | |
| CN109049020A (en) | The control circuit of electric shaver | |
| CN201191639Y (en) | Multifunctional solar charger | |
| CN209207573U (en) | The control circuit of electric shaver | |
| CN103516024B (en) | Health warmer battery case | |
| CN110086216A (en) | Portable multi-function repairs power supply | |
| CN204167938U (en) | Electrocar battery low temp compensating charging device | |
| CN219740667U (en) | Solar energy LED umbrella lamp control circuit | |
| CN218848610U (en) | Saw blade oil feeding control circuit | |
| CN218386900U (en) | Built-in temperature display charging circuit of hand warmer | |
| CN215446916U (en) | Gas water heater with battery electric quantity indication | |
| CN108155688B (en) | Portable spot welding device with double power supplies | |
| CN211065238U (en) | Charging circuit for warm shoes | |
| CN216700398U (en) | Be applied to emergent circuit of little night-light | |
| CN217721546U (en) | Lighting lamp and circuit system thereof | |
| CN219478165U (en) | Cultural lamp control circuit and cultural lamp thereof | |
| CN217010419U (en) | Solar assistance system for plate purification air bin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |