Disclosure of Invention
In view of this, the embodiment of the invention aims to provide a power-adjustable plasma generator, so as to meet the power matching requirement of an unnecessary application scene.
The technical scheme of the embodiment of the invention is realized as follows:
an embodiment of the present invention provides a plasma generator including:
The pipe body is filled with a conductive medium;
The lead is positioned in the pipe body;
At least two sections of coils arranged outside the tube body;
the power supply circuit is used for supplying power to the lead wires and the coils;
And the change-over switch is used for controlling the power-on state of each coil.
In some embodiments, the power supply circuit comprises:
The boosting device is used for boosting and converting an input power supply into a target power supply, and comprises a first output end and a second output end, wherein the first output end is connected with the lead wire, and the second output end is connected with each coil through the change-over switch.
In some embodiments, the switch comprises a relay, and the plasma generator further comprises:
And the controller is used for controlling the conduction state of the relay and further controlling the power-on state of each coil.
In some embodiments, the number of relays corresponds to the number of coils.
In some embodiments, the number of relays is less than the number of coils, and the normally closed end and the normally open end of at least one relay are respectively connected with different coils.
In some embodiments, the controller controls the designated relay action based on a target power to select the corresponding coil to power up.
In some embodiments, the controller is further configured to obtain an operating duration, and determine the target power based on the operating duration.
In some embodiments, each of the coils is disposed at intervals along an axial direction of the tube body.
In some embodiments, the tube body is a quartz tube.
The embodiment of the invention also provides clothes treatment equipment comprising the plasma generator.
According to the technical scheme provided by the embodiment of the invention, at least two sections of coils are arranged outside the tube body, and the power-on state of each coil is controlled through the change-over switch, so that the output power of the plasma generator can be adjusted according to the different power-on states of each coil, and therefore, the power matching requirements of different application scenes can be met, and the plasma generator has universality.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The embodiment of the invention provides a plasma generator, which is shown in fig. 1 to 3, and comprises a tube body 1, a wire 2, at least two sections of coils 3, a power supply circuit 4 and a switch 5, wherein the tube body 1 is filled with a conductive medium 6, such as graphite, water and other conductive mediums, the tube body 1 can be filled with a Quartz tube (Quartz tube), the wire 2 can be a metal wire, the wire 2 is positioned in the conductive medium 6 in the tube body and is used as a first electrode of the plasma generator, the at least two sections of coils 3 are positioned outside the tube body 1, each coil 3 is used as a second electrode of the plasma generator, the power supply circuit 4 is used for supplying power to the wire and each coil, namely, supplying power to the first electrode and each second electrode, and the switch 5 is used for controlling the electrifying state of each coil 3.
In the working process of the plasma generator, working voltage is formed between the first electrode and each second electrode, so that surrounding gaseous medium is ionized, and plasma is generated. The output power of the whole plasma generator depends on the power-on state of each coil 3, and it is understood that the output power of the plasma generator is proportional to the length of the powered coil 3, where the length of the coil 3 refers to the length of the coil 3 in the axial direction of the tube body 1.
According to the plasma generator disclosed by the embodiment of the invention, at least two sections of coils 3 are arranged outside the tube body 1, and the power-on state of each coil 3 is controlled through the change-over switch 5, so that the output power of the plasma generator can be adjusted according to the different power-on states of each coil, and therefore, the output power matching requirements of different application scenes can be met, and the plasma generator has universality.
In some embodiments, the coils 3 are spaced apart along the axial direction of the tube body 1. Each coil 3 is spirally wound around the outside of the tube body 1. The lengths of the coils 3 may be equal or unequal. Because the length of the electrified coil 3 is in direct proportion to the output power of the plasma generator, the length proportion relation among different coils 3 can be set according to the requirement, thereby meeting the requirement of adjusting the output power gear of the plasma generator. Taking the case that two sections of coils 3 are arranged on the tube body 1 as an example, as shown in fig. 2, a first coil 31 and a second coil 32 are arranged on the tube body 1, the length proportion relation between the first coil 31 and the second coil 31 is 1:3, and assuming that the power output power of the plasma generator is 20W (watts), the output power of the plasma generator is 5W when the first coil 31 is electrified, and the output power of the plasma generator is 15W when the second coil 32 is electrified.
In some embodiments, the switch 5 may be a mechanical switch, for example, the user triggers the mechanical switch by means of a contact or a button to switch the power-on state of each coil, so as to adjust the output power of the plasma generator.
In some embodiments, the power supply circuit 4 comprises a boost device for converting an input power supply into a target power supply in a boost mode, and the boost device comprises a first output end and a second output end, wherein the first output end is connected with a wire, and the second output end is connected with each coil through a change-over switch 5.
Here, the boosting device may be a transformer. Since the operating voltage of the plasma generator is high, it is necessary to boost-convert the input power into the target power. In an application example, as shown in fig. 2, the power supply circuit includes an input end A1, an input end B1, an output end a and an output end B, wherein the input end A1 and the input end B1 can both be connected with 220V alternating current, the output end a is connected with a lead 2, i.e. the output end a is connected with a first electrode, the output end B is connected with a first coil 31 and a second coil 32 through a switch 5, i.e. the output end B is connected with two second electrodes through the switch 5. Therefore, the power-on state of each coil is controlled through the change-over switch 5, and the output power of the plasma generator can be adjusted to meet the output power matching requirements of different application scenes.
In some embodiments, the transfer switch comprises a relay, and the plasma generator further comprises:
And the controller is used for controlling the conduction state of the relay and further controlling the power-on state of each coil.
Therefore, the on state of the relay can be controlled by the controller, and the aim of adjusting the output power of the plasma generator is achieved.
In some embodiments, the number of relays is consistent with the number of coils, i.e., the relays are arranged in one-to-one correspondence with the coils, so that the controller can control whether the corresponding coils are electrified or not by controlling the conducting state of the relays. It will be appreciated that each coil may be connected to the normally open end of a corresponding relay, or may be connected to the normally closed end of a corresponding relay.
In some embodiments, the number of relays is less than the number of coils, and the normally closed end and the normally open end of at least one relay are respectively connected with different coils. For example, the number of coils 3 on the tube body 1 is 5, and the 5 coils are connected to three relays, respectively, wherein two relays are connected to two coils, and the remaining one coil is connected to one relay alone. In this way, the number of relays can be reduced, and it can be appreciated that if one of the two coils connected to the same relay is powered up, the other cannot be powered up, i.e. only one of them is allowed to be powered up at the same time.
Taking the two coils arranged on the tube body 1 as an example, the two coils controlled by the single relay and the two coils controlled by the double relay are respectively described below.
As shown in fig. 2, the length of the first coil 31 is smaller than that of the second coil 32, assuming that the power of the power supply is 20W, the length proportional relationship between the first coil 31 and the second coil 32 is 1:3, the first coil 31 is connected with the normally closed end OFF of the relay, the second coil 32 is connected with the normally open end ON of the relay, the common end COM of the relay is connected with the output end a of the power supply circuit 4, and the lead 2 in the tube body 1, namely, the first electrode of the plasma generator is connected with the output end B of the power supply circuit 4. When the plasma generator needs to use 5W output power for sterilization and deodorization, the controller does not operate the relay, and directly controls the plasma generator to be electrified, namely, the control power circuit is connected with the input power supply, the current is OFF at the normally-closed end and then passes through the first coil 31, and the output power of the plasma generator is 5W. When the output power of 15W is needed for sterilization and deodorization, the controller controls the relay to be conducted with the common end COM at the normal start end ON, and the current works through the second coil 31, so that the output power of the plasma generator at the moment is 15W, and more active particles can be generated for sterilization and deodorization.
As shown in fig. 3, the first coil 31 and the second coil 32 are each separately connected to one relay, wherein the lead wire of the first coil 31 may be connected to the normally closed end or the normally open end of the first relay 51, and the lead wire of the second coil 32 may be connected to the normally closed end or the normally open end of the second relay 51. The first relay 51 and the second relay 52 may be controlled by a controller. The first relay 51 and the second relay 52 are both connected to the output a of the power supply circuit 4, and the wire 2 is connected to the output B of the power supply circuit 4. When the plasma generator needs 5W of output power, the controller controls the first relay 51 to be conducted, the first coil 31 passes current, and the output power of the plasma generator is 5W. Similarly, the controller controls the second relay 52 to be turned on, the second coil 32 passes the current, and the output power of the plasma generator is 15W. The difference between fig. 3 and fig. 2 is that the controller can control the plasma generator to operate at full output power, i.e. the controller controls the first relay 51 and the second relay 52 to be turned on simultaneously, the output power of the plasma generator is 20W, and one more power control gear is compared with a single relay.
It will be appreciated that in other embodiments, the number of coils may be greater than two, and the number of corresponding relays may be reasonably set according to the number of coils, so that the plasma generator may set more power control gears.
In some embodiments, the controller controls the designated relay action based on the target power to select the corresponding coil to power up.
For example, as illustrated in fig. 3, if the controller receives the indication information of the target power of 5W, the controller controls the first relay 51 to be turned on so as to power up the first coil 31, if the controller receives the indication information of the target power of 15W, the controller controls the second relay 52 to be turned on so as to power up the second coil 32, and if the controller receives the indication information of the target power of 20W, the controller controls the first relay 51 and the second relay 52 to be turned on so as to power up both the first coil 31 and the second coil 32. Here, the indication information may be input by a user through inputting indication information of a power control gear input by the man-machine interaction unit, for example, through a touch screen, a knob switch, a key, or the like.
In some embodiments, the controller is further configured to obtain an operating time period, and determine the target power based on the operating time period.
Here, the controller may receive, in addition to the indication information of the power control gear input by the user, the indication information of the time control gear input by the user, and may obtain the working time based on the indication information of the time control gear, determine the target power required for the work based on the working time, and further select the corresponding coil to power on based on the target power, so as to satisfy the intelligent control of the output power of the plasma generator.
The plasma generator provided by the embodiment of the invention can be suitable for power requirements of different models and different scenes, and has standardization and excellent consistency. Based on the control of the controller, the gear can be shifted independently of time, the control strategies can be enriched based on the power control gear, in addition, a larger power supply can be provided, and the plasma generator can be enabled to operate corresponding output power according to requirements.
In an exemplary embodiment, the controller may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, programmable logic devices (PLDs, programmable Logic Device), complex programmable logic devices (CPLDs, complex Programmable Logic Device), FPGAs, general purpose processors, controllers, microcontrollers (MCUs, micro Controller Unit), microprocessors (micro processors), or other electronic components for performing the aforementioned methods.
The embodiment of the invention also provides clothes treatment equipment comprising the plasma generator. The clothes treatment equipment can be a washing machine, a clothes dryer or a washing and drying integrated machine with sterilization and deodorization functions, the plasma generator can be communicated with a clothes treatment cavity in the clothes treatment equipment, and the plasma generator can control corresponding output power according to the quantity of clothes, for example, when the requirements of rapid sterilization and deodorization of a small quantity of clothes are met, the output power can be reduced, and when the sterilization and deodorization of a large quantity of clothes are met, the sterilization duration can be shortened by increasing the output power.
It should be noted that "first," "second," etc. are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.
In addition, the embodiments of the present invention may be arbitrarily combined without any collision.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.