CN110191525A - Electromagnetic heating apparatus - Google Patents
Electromagnetic heating apparatus Download PDFInfo
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- CN110191525A CN110191525A CN201910562569.XA CN201910562569A CN110191525A CN 110191525 A CN110191525 A CN 110191525A CN 201910562569 A CN201910562569 A CN 201910562569A CN 110191525 A CN110191525 A CN 110191525A
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- supply module
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/04—Sources of current
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/06—Control, e.g. of temperature, of power
- H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0071—Active shielding
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The present invention relates to a kind of control circuit boards, comprising: resonance modules, for generating changing magnetic field and can be heated to calandria；Power supply module, power supply module include input terminal and output end, and the input terminal and AC power source of power supply module are electrically connected, and the output end and resonance modules of power supply module are electrically connected；Filter module, filter module are electrically connected between power supply module and resonance modules；The input terminal and suction wave apparatus of power supply module are electrically connected or the output end of power supply module is electrically connected with suction wave apparatus or the output end of power supply module is electrically connected with calandria or filter module is electrically connected with suction wave apparatus or filter module is electrically connected with calandria or resonance modules are electrically connected with suction wave apparatus or resonance modules are electrically connected with calandria；Calandria or suction wave apparatus can conduct electromagnetic interference (EMI) emissions to power supply module or filter module or resonance modules, and power supply module or filter module or resonance modules absorb or offset electromagnetic interference (EMI) emissions.
Description
Technical field
The present invention relates to electromagnetic technology fields, more particularly to a kind of electromagnetic heating apparatus.
Background technique
Electromagnetic heating technique has extremely wide answer in the electromagnetic heating apparatus such as electromagnetic oven, electromagnetic stove and electric cooker
With electromagnetic heating is also referred to as electromagnetic induction heating, generates alternating magnetic field by coil, when container is located in alternating magnetic field, holds
Device surface will cut the magnetic line of force of alternating magnetic field and generate the electric current (being vortexed) of alternation in container bottom, and vortex makes container bottom
Carrier high speed random motion, carrier and atom collide with each other, rub and generate thermal energy, to play the effect of heating
Fruit.
Electromagnetic heating technique needs to follow EMI (Electromagnetic Interference, electromagnetic interference) technical bid
Standard, therefore the electromagnetic interference that electromagnetic heating apparatus generates surrounding enviroment is no more than specified value, while electromagnetic heating apparatus is also right
Electromagnetic interference present in surrounding enviroment has certain immunity to interference.To make electromagnetic heating apparatus meet EMC technical standard as far as possible,
Tradition generallys use the solution of " increasing capacitor, increase inductance ", but the solution is there are higher cost and still difficult
To meet EMI technical standard.
Summary of the invention
The technical problem that the present invention solves is the ability for how improving electromagnetic heating apparatus and eliminating electromagnetic interference (EMI) emissions
And reduce its manufacturing cost.
A kind of control circuit board, comprising:
Resonance modules, for generating changing magnetic field and can be heated to calandria；
Power supply module, the power supply module include input terminal and output end, the input terminal and alternating current of the power supply module
Source is electrically connected, and the output end of the power supply module and the resonance modules are electrically connected, and the power supply module will be for that will exchange
Electricity is converted into direct current and powers for the resonance modules；
Filter module, the filter module is electrically connected between the power supply module and the resonance modules, for filtering
Except the high-frequency harmonic in circuit；
The input terminal of the power supply module and the output end and suction wave dress for inhaling wave apparatus electric connection or the power supply module
Output end and calandria electric connection or the filter module and suction wave apparatus for setting electric connection or the power supply module are electrical
Connection or the filter module and calandria are electrically connected or the resonance modules are electrically connected with suction wave apparatus or the resonance
Module and calandria are electrically connected；
For the electromagnetic interference (EMI) emissions of the resonance modules, the calandria or the suction wave apparatus can be by the electromagnetism
Interfere conduct radiation to the power supply module or the filter module or the resonance modules, the power supply module or the filtering
Module or the resonance modules absorb or offset the electromagnetic interference (EMI) emissions.
In one of the embodiments, when the input terminal of the power supply module and suction wave apparatus are electrically connected, the confession
Electric module includes the first isolated location, first isolated location include capacitor CY1 and capacitor CY2, the capacitor CY1 with it is described
In parallel with the input terminal of the power supply module after capacitor CY2 series connection, the suction wave apparatus is electrically connected at the capacitor CY1 and institute
State the node between capacitor CY2.
In one of the embodiments, when the output end of the power supply module and calandria electric connection or the filtering mould
When block and calandria are electrically connected or the resonance modules are electrically connected with calandria, the electromagnetic heating apparatus further includes isolation
Module, the isolation module include capacitor CY3, and the first end of the capacitor CY3 and the calandria are electrically connected, the capacitor
The output end or the filter module or the resonance modules of the second end of CY3 and the power supply module are electrically connected.
The power supply module includes filter unit and rectification unit, the filter unit electricity in one of the embodiments,
Property be connected between the input terminal of the power supply module and the rectification unit, the filter unit is used for the alternating current of input
It is filtered, the rectification unit is used to the alternating current being converted into direct current.
The filter unit includes: in one of the embodiments,
First resistor, the both ends of the first resistor respectively with the electrode input end of the input terminal of the power supply module and institute
The negative input for stating the input terminal of power supply module is electrically connected；And
First capacitor, the both ends of the first capacitor respectively with the electrode input end of the input terminal of the power supply module and institute
The negative input for stating the input terminal of power supply module is electrically connected.
The filter module includes: in one of the embodiments,
The direct-flow positive pole output end of first coil, the first end of the first coil and the rectification unit is electrically connected；
And
Second capacitor, the first end of second capacitor and the second end of the first coil are electrically connected, and described second
The direct current cathode output end of the second end of capacitor and the rectification unit is electrically connected；The direct current cathode of the rectification unit exports
The cathode output end of the output end as the power supply module is held, the direct-flow positive pole output end of the rectification unit is as the confession
The cathode output end of the output end of electric module.
The resonance modules include resonance coil and the third electricity in parallel with resonance coil in one of the embodiments,
Hold, the third capacitor is also in parallel with second capacitor.
The direct-flow positive pole output end of the second end of the capacitor CY3 and the rectification unit in one of the embodiments,
It is electrically connected or is electrically connected with the direct current cathode output end of the rectification unit or electrical with the first end of second capacitor
Connection or be electrically connected with the second end of second capacitor be electrically connected with one end of the resonance coil or with it is described humorous
The other end of vibration coil is electrically connected.
In one of the embodiments, further include:
Switch module is connected with the resonance coil, for controlling the connection of the resonance modules Yu the power supply module
With disconnection；And
Control module is electrically connected, for controlling the turn-on and turn-off of the switch module with the switch module.
The switch module includes power switch tube in one of the embodiments, the collector of the power switch tube
It is electrically connected with one end of the resonance coil, the emitter ground connection of the power switch tube, the grid of the power switch tube
It is electrically connected with the control module.
One of one embodiment of the present of invention has the technical effect that the input terminal of power supply module and inhales wave apparatus and is electrically connected
Or the output end of power supply module and suction wave apparatus are electrically connected or the output end of power supply module is electrically connected or filters with calandria
Module and suction wave apparatus are electrically connected or filter module is electrically connected with calandria electric connection or resonance modules and suction wave apparatus
Or resonance modules and calandria are electrically connected；Inhale wave apparatus or calandria electromagnetic interference (EMI) emissions can be conducted to power supply module or
Filter module or resonance modules, power supply module or filter module or resonance modules absorb or offset the electromagnetic interference (EMI) emissions.Cause
This, is electrically connected by inhaling wave apparatus or calandria and control circuit board, can effectively eliminate electromagnetic interference (EMI) emissions, improved entire
The ability of electromagnetic heating apparatus elimination electromagnetic interference (EMI) emissions.
Detailed description of the invention
Fig. 1 is the plan cross-section structural schematic diagram for the electromagnetic heating apparatus that an embodiment provides；
Fig. 2 is the perspective cross-sectional structural schematic diagram for the electromagnetic heating apparatus that an embodiment provides；
The first exemplary construction schematic diagram of wave apparatus is inhaled in the electromagnetic heating apparatus that Fig. 3 provides for an embodiment；
The second exemplary construction schematic diagram of wave apparatus is inhaled in the electromagnetic heating apparatus that Fig. 4 provides for an embodiment；
Fig. 5 is the decomposition texture schematic diagram of Fig. 4；
The third exemplary construction schematic diagram of wave apparatus is inhaled in the electromagnetic heating apparatus that Fig. 6 provides for an embodiment；
The 4th exemplary construction schematic diagram of wave apparatus is inhaled in the electromagnetic heating apparatus that Fig. 7 provides for an embodiment；
The 5th exemplary construction schematic diagram of wave apparatus is inhaled in the electromagnetic heating apparatus that Fig. 8 provides for an embodiment；
The 6th exemplary construction schematic diagram of wave apparatus is inhaled in the electromagnetic heating apparatus that Fig. 9 provides for an embodiment；
Figure 10 is the structural schematic diagram for the electromagnetic heating apparatus coil disk that an embodiment provides；
Figure 11 is the decomposition texture schematic diagram of Figure 10；
Figure 12 is the structural schematic diagram for the electromagnetic heating apparatus that another embodiment provides；
Figure 13 is the circuit diagram for the electromagnetic heating apparatus that an embodiment provides；
Figure 14 is the circuit diagram for the electromagnetic heating apparatus that another embodiment provides.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give better embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose of providing these embodiments is that making to understand more the disclosure
Add thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein "inner", "outside", "left", "right" and
Similar statement for illustrative purposes only, is not meant to be the only embodiment.
Refering to fig. 1 and Fig. 2, electromagnetic heating apparatus 10 include inhaling wave apparatus 100, coil panel 200,300 and of control circuit board
Bearing assembly 400.Coil panel 200 and suction wave apparatus 100 are both electrically connected with control circuit board 300, and bearing assembly 400 is used
In calandrias 20 such as bearing metal cookwares 21, bearing assembly 400 can be glass-ceramic panel 410 etc..Bearing assembly 400 is located at
The top of coil panel 200.Alternating current generates alternating magnetic field by coil panel 200, when calandria 20 is located at bearing assembly 400
When being above in the alternating magnetic field, 20 surface of calandria will cut the magnetic line of force of alternating magnetic field and generate alternation electricity in its bottom
Stream (is vortexed), and vortex makes the carrier high speed random motion of 20 bottom of calandria, and carrier collides with each other with atom, rubs
And thermal energy is generated, to play the effect heated to calandrias 20 such as metal pans 21.
During electromagnetic heating apparatus 10 works, coil panel 200 can generate electromagnetic interference (EMI) emissions and influence other set
Standby normal work；Meanwhile other equipment can also generate electromagnetic interference (EMI) emissions near the electromagnetic heating apparatus 10, and then influence
The normal work of electromagnetic heating apparatus 10 itself.Since electromagnetic heating apparatus 10 includes inhaling wave apparatus 100,100 energy of wave apparatus is inhaled
Enough to conduct the electromagnetic interference (EMI) emissions near coil panel 200 to control circuit board 300, control circuit board 300 absorbs or offsets electricity
Magnetic disturbance radiation, so that electromagnetic heating apparatus 10 will not have an impact the electromagnetic interference (EMI) emissions that other equipment work normally, it is other
The electromagnetic interference (EMI) emissions that equipment generates can not also influence the normal work of electromagnetic heating apparatus 10 itself because being eliminated, and finally make
It obtains electromagnetic heating apparatus 10 and meets EMI (Electromagnetic Interference, electromagnetic interference) technical standard.
Specifically, for example, control circuit board 300 includes inductively or capacitively waiting filter elements, in control circuit board 300
Circuit can also generate electromagnetic radiation, and conducting to the electromagnetic interference (EMI) emissions of control circuit board 300 can be absorbed by filter element, can also
To be offseted with the electromagnetic radiation generated in 300 circuit of control circuit board.
Simultaneously refering to fig. 1 to Fig. 3, in some embodiments, inhaling wave apparatus 100 has the first form of expression, this first
The suction wave apparatus 100 of the kind form of expression includes inhaling wave medium 110 and connection conductor 112.
It inhales 111 coiling of conducting wire made of conductor or semiconductor material of wave medium 110 to form, inhaling wave medium 110 can be around
Layer structure is made, the head end and tail end for inhaling wave medium 110 are not connected to, so that entirely inhaling the open loop that wave medium 110 is non-close
Structure.Inhale wave medium 110 head end and tail end be respectively connected with connection conductor 112, inhale wave medium 110 by connection conductor 112 with
Control circuit board 300 is electrically connected.Connecting conductor 112 can be integrally formed with wave medium 110 is inhaled, that is, connects conductor 112 and inhale
Wave medium 110 is formed by same 111 coiling of conducting wire.It is of course also possible to which wave medium 110 is inhaled in first processing, then pass through connection conductor 112
It is connect with wave medium 110 is inhaled, connection conductor 112 and suction wave medium 110 can be made of unused material.Conducting wire 111 can be with
It is made of, can also be formed by multiply wire rod coiling sub-thread wire rod, wire rod can be made of materials such as aluminium, copper or nickel alloys.
The cross section of conducting wire 111 is 0.01mm2To 2mm2.For example, according to the needs of actual conditions, the value of 111 cross-sectional area of conducting wire can
Think 0.01mm2、0.05mm2、1mm2Or 2mm2Deng.Inhaling wave medium 110 can also be formed by the way of punching, i.e., will be by leading
Body or semiconductor material manufactured Board form the suction wave medium 110 of specific shape by punching.Inhaling wave medium 110 can also use
The techniques such as spraying, printing, injection or plating are formed.
Connection conductor 112 can by welding, rivet, be spirally connected or the modes such as grafting are fixed in control circuit board 300, with
Just the electric connection for inhaling wave medium 110 and control circuit board 300 is realized.Certainly, connection conductor 112 can also use Elastic Contact
Electric installation is connect with 300 Elastic Contact of control circuit board.
The shape for inhaling wave medium 110 can generally circular, polygon, ellipse, spider reticulation or snowflake sheet isotactic
Then or irregular planar structure, certainly, inhaling wave medium 110 can also spatially shape.Coil panel can be located at by inhaling wave medium 110
200 upside, for example, bearing assembly can be located at by inhaling wave medium 110 since bearing assembly 400 is located at the top of coil panel 200
Between 400 and coil panel 200, lower surface or upper surface that wave medium 110 can also be attached to bearing assembly 400 are inhaled.For another example, it inhales
Wave medium 110 may be located on the downside (lower section) of coil panel 200.For another example, inhale wave medium 110 quantity can be two, two
A the upper side and lower side inhaled wave medium 110 and be located at coil panel 200.Inhaling wave medium 110 may be located on the side of coil panel 200
Side, suction wave medium 110 being equidistant to bearing assembly 400 with coil panel 200, for popular, inhales wave medium 110 and coil panel
200 are in identical height, at this point, inhaling wave medium 110 can be arranged with wound coil disk 200.
Inhale wave medium 110 has vertical projected area on coil panel 200, and the resonance coil 220 on coil panel 200 is certainly
Body is formed with area coverage, and the projected area for inhaling wave medium 110 is greater than or equal to the half area coverage of resonance coil 220.This
Sample, which is more conducive to improving, inhales the absorption electromagnetic interference (EMI) emissions ability of wave medium 110.
Include above-mentioned suction wave medium 110 by the way that wave apparatus 100 will be inhaled, and makes to inhale wave medium 110 and the company of control circuit board 300
It connects, so that the control of control circuit board 300 is inhaled wave medium 110 and absorb or offset electromagnetic interference (EMI) emissions, the design structure is simple, inhales wave and is situated between
Matter 110 will not occupy biggish installation space, so that electromagnetic heating apparatus 10 is compact-sized and reduces its manufacturing cost, be conducive to
The large-scale production of electromagnetic heating apparatus 10.And electromagnetic interference (EMI) emissions can effectively be absorbed by inhaling wave medium 110, significantly reduce electromagnetism
The noise amplitudes of radiation are interfered, to improve the ability of the elimination electromagnetic interference (EMI) emissions of entire electromagnetic heating apparatus 10.Meanwhile
During inhaling the absorption electromagnetic interference (EMI) emissions of wave medium 110, heating of the electromagnetic heating apparatus 10 to calandria 20 is not influenced, favorably
In the energy conversion rate for guaranteeing electromagnetic heating apparatus 10.
Simultaneously refering to fig. 1 and Fig. 2, Fig. 4 are to Fig. 9, which also provides a kind of preparation method for inhaling wave apparatus 100, should
Preparation method mainly includes the following steps:
The first step is provided and is made of conductor or semiconductor material.Second step, by conductor or semiconductor material by coiling,
Punching, spraying, printing, injection or electroplating technology, which are formed, inhales wave medium.Connection conductor is connect by third step with wave medium is inhaled.Example
Such as, can the conductive line bends made of conductor or semiconductor material formed layer structure suction wave medium 110.It for another example, can be with
Injection molding is provided, the liquid of melting, and pressure maintaining setting time are injected in injection molding, last furnace cooling simultaneously opens mould
Tool, can equally form the suction wave medium 110 of layer structure.
Simultaneously refering to Fig. 2 to Fig. 6, in some embodiments, inhaling wave apparatus 100 has second of form of expression.This second
The suction wave apparatus 100 of the kind form of expression includes inhaling wave medium 110, connection conductor 112 and Supporting Media 120.
Supporting Media 120 is made of insulating material, and is inhaled wave medium 110 and is arranged on the Supporting Media 120, Supporting Media
120 inhale the carrier of wave medium 110 as support, can play the role of support and carrying to wave medium 110 is inhaled.The Supporting Media
120 have high temperature resistant and cannot can use the materials systems such as plastic cement, ceramics, paper wood or glass by electromagnetic heating, Supporting Media 120
At.
The open loop structure that wave medium 110 is non-close is inhaled, the head end and tail end for inhaling wave medium 110 are respectively connected with connection conductor
112, it inhales wave medium 110 and is electrically connected by connection conductor 112 and control circuit board 300.Connecting conductor 112 can be situated between with wave is inhaled
Matter 110 is integrally formed, i.e., connection conductor 112 is made with wave medium 110 is inhaled of same material.It is of course also possible to which first wave is inhaled in processing
Medium 110, then connect by connection conductor 112 with wave medium 110 is inhaled, connecting conductor 112 and inhale wave medium 110 can be using not
Material is made.Connection conductor 112 can by welding, rivet, be spirally connected or the modes such as grafting are fixed on control circuit board 300
On, to realize the electric connection for inhaling wave medium 110 and control circuit board 300.Certainly, connection conductor 112 can also use bullet
Property contact electric installation connect with 300 Elastic Contact of control circuit board.
Supporting Media 120 can be the support plate 122 or support membrane 123 of flexible membranous structure etc. of hard plate shape structure,
Inhaling wave medium 110 may include conducting wire 111, and conducting wire 111 is made of conductor or semiconductor material, conducting wire 111 can be bent and
The suction wave medium 110 of layer structure is formed, the suction wave medium 110 of layer structure can be covered in support by way of bonding and be situated between
On the surface of matter 120, that is, inhale the surface that wave medium 110 is only located at Supporting Media 120.Certainly, conducting wire 111 can also be situated between from support
The another side for penetrating Supporting Media 120 on one side and entering Supporting Media 120 of matter 120, i.e. conducting wire 111 back and forth penetrate support back and forth
Two apparent surfaces of medium 120 and form layer structure, for popular, conducting wire 111 is using similar such as stitching sewing machine needlework
Mode connect with Supporting Media 120.Inhaling wave medium 110 can be connect by the way of package with Supporting Media 120.Conducting wire
111 can be made of sub-thread wire rod, can also be formed by multiply wire rod coiling, wire rod can be adopted and is made of aluminum or copper.Conducting wire 111
Cross section be 0.01mm2To 2mm2.For example, according to the needs of actual conditions, the value of 111 cross-sectional area of conducting wire can be
0.01mm2、0.05mm2、1mm2Or 2mm2Deng.The shape for inhaling wave medium 110 can generally circular, polygon, ellipse, spider
The rule such as arachnoid or snowflake sheet or irregular planar structure, certainly, inhaling wave medium 110 can also spatially shape.
Supporting Media 120 may include pcb board 121, and inhaling wave medium 110 is the copper foil 113 being attached on pcb board 121, copper
Concrete shape needed for foil 113 can form suction wave medium 110 by the way of etching.Alternatively, inhaling wave medium 110 includes conduction
Coating 114, conductive coating 114 are formed in the surface of support plate 122 by way of spraying or silk-screen.Certainly, wave medium 110 is inhaled
It can also be formed on Supporting Media 120 by techniques such as printing, injection or plating.
The quantity of Supporting Media 120 can be one, inhale wave medium 110 and be attached on the surface of Supporting Media 120, in this way
So that the structure for entirely inhaling wave apparatus 100 is more simple and compact, the manufacturing cost for inhaling wave apparatus 100 is advantageously reduced.Alternatively,
The quantity of Supporting Media 120 is two, and two Supporting Medias 120 are stacked, and inhales wave medium 110 and is interposed in two Supporting Medias
Between 120.In other words, it inhales wave medium 110 and two 120 threes of Supporting Media is stacked, inhale wave medium 110 and be located at center
Between.By the way that two Supporting Medias 120 are arranged, good defencive function can be formed to wave medium 110 is inhaled, improve and inhale wave medium
110 service life.Supporting Media 120 is insulating materials support simultaneously, and electromagnetic interference (EMI) emissions can penetrate the Supporting Media 120,
The signal of electromagnetic interference (EMI) emissions is received to not influence to inhale wave medium 110, it is ensured that inhale wave medium 110 to electromagnetic interference (EMI) emissions
Absorption function.Certainly, the quantity of Supporting Media 120 is also an option that between 1 to 10, wherein multiple 120 phases of Supporting Media
Mutually it is stacked.
Plane locating for suction wave medium 110 is parallel with both planes locating for Supporting Media 120 or intersects set angle,
When Supporting Media 120 is horizontally arranged, inhale wave medium 110 can also in horizontal positioned, i.e., plane locating for suction wave medium 110 with
Both planes locating for Supporting Media 120 are parallel.Inhaling wave medium 110 can also be vertically arranged, or inhale wave medium 110 and support
The certain angle of 120 relative tilt of medium, i.e. both planes locating for plane and Supporting Media 120 locating for suction wave medium 110
Intersection is at an acute angle or a right angle etc..According to the annoyance level of electromagnetic interference (EMI) emissions, wave medium 110 can be inhaled with appropriate adjustment and support is situated between
The relative positional relationship of matter 120.Wave medium 110 is inhaled to be greater than or equal on coil panel 200 in the projected area on coil panel 200
The half area coverage of resonance coil 220, such as the area coverage of resonance coil 220 can be made to be entirely located in and inhale wave medium
Within 110 projected area, wave medium 110 is inhaled to the absorption function of electromagnetic interference (EMI) emissions to preferably play.
The quantity for inhaling wave apparatus 100 can be one, which is located at the upside of coil panel 200, such as inhales wave
Between bearing assembly 400 and coil panel 200, the Supporting Media 120 in suction wave apparatus 100 can be fixed on to be held device 100
Carry the lower surface or upper surface of component 400.For another example, inhaling wave apparatus 100 may be located on the downside (lower section) of coil panel 200.It inhales
Supporting Media 120 in wave apparatus 100 can be fixed on coil panel 200, or keep set distance with coil panel 200.Again
Such as, the quantity for inhaling wave apparatus 100 can be two, and two are inhaled the upper side and lower side that wave apparatus 100 is located at coil panel 200.
In addition, inhaling wave apparatus 100 can be arranged with wound coil disk 200.
By inhaling the setting of wave medium 110 on Supporting Media 120, Supporting Media 120 can play carrying and protection is inhaled
The effect of wave medium 110 extends the working life for inhaling wave medium 110, it is ensured that entire wave apparatus 100 of inhaling preferably is played to electromagnetism
The absorption function for interfering radiation is also convenient for inhaling the Fast Installation of wave apparatus 100.
It inhales wave apparatus 100 in some embodiments to Figure 11 with Fig. 2, Figure 10 refering to fig. 1 simultaneously and is showed with the third
Form.To inhale wave apparatus 100 and being integrated on coil panel 200, i.e., the suction wave apparatus 100 of the third form of expression can be regarded as
So that coil panel 200 itself has the absorption function of electromagnetic interference (EMI) emissions.
Coil panel 200 includes bracket 210, and resonance coil 220 is inhaled wave medium 110, connection conductor 112, magnetic stripe 230 and determined
Position column 240.The open loop structure that wave medium 110 is non-close is inhaled, the head end and tail end for inhaling wave medium 110 are respectively connected with connection conductor
112, inhaling wave medium 110 can be directly electrically connected with control circuit board 300 by connection conductor 112.Connecting conductor 112 can be with
It is integrally formed with wave medium 110 is inhaled, i.e., connection conductor 112 is made with wave medium 110 is inhaled of same material.It is of course also possible to first
Wave medium 110 is inhaled in processing, then is passed through connection conductor 112 and connect with wave medium 110 is inhaled, and connection conductor 112 and suction wave medium 110 can
To be made of unused material.Connection conductor 112 can by welding, rivet, be spirally connected or the modes such as grafting are fixed on control
On circuit board 300, to realize the electric connection for inhaling wave medium 110 and control circuit board 300.Certainly, connection conductor 112 may be used also
To be connect using Elastic Contact electric installation with 300 Elastic Contact of control circuit board.
Inhaling wave medium 110 includes conducting wire 111, and conducting wire 111 is made of conductor or semiconductor material, and conducting wire 111 can be curved
Suction wave medium 110 that is bent and forming layer structure, conducting wire 111 can be made of sub-thread wire rod, can also be by multiply wire rod coiling
It is formed, wire rod can be adopted and is made of aluminum or copper.The cross section of conducting wire 111 is 0.01mm2To 2mm2.For example, according to the actual situation
It needs, the value of 111 cross-sectional area of conducting wire can be 0.01mm2、0.05mm2、1mm2Or 2mm2Deng.Inhale the shape of wave medium 110
Can the rule such as generally circular, polygon, ellipse, spider reticulation or snowflake sheet or irregular planar structure, certainly,
Inhaling wave medium 110 can also spatially shape.
Resonance coil 220 is installed on the bracket 210, and resonance coil 220 and control circuit board 300 are electrically connected, resonance line
220 one side are enclosed for generating alternating magnetic field, to heat to calandria 20.Connection is provided on resonance coil 220 to draw
Line 221, connecting lead wire 221 include inlet wire and outlet, one of connection conductor 112 and inlet wire can be riveted, by other one
A connection conductor 112 is riveted with outlet, so that connection conductor 112 is indirectly electrical with control circuit board 300 by connecting lead wire 221
Connection.Resonance coil 220 can also include space(d) winding and densely packed coil.
Bracket 210 can be substantially in the form of annular discs, and bracket 210 has the first surface 212 and second surface being oppositely arranged
213, such as first surface 212 is the upper surface of bracket 210, second surface 213 is the lower surface of bracket 210.Resonance coil 220
The side locating for the first surface 212, such as resonance coil 220 can be attached on first surface 212, inhale wave medium 110
The side locating for the second surface 213, inhaling wave medium 110 can be attached on second surface 213.Certainly, wave medium 110 is inhaled
Side locating for first surface 212 can also be located at, at this point, inhaling wave medium 110 can be stacked on resonance coil 220.Inhale wave
The quantity of medium 110 can also be two, and two suction wave media 110 are separately positioned on first surface 212 and second surface 213
On.Coiling molding can also be mixed together with resonance coil 220 by inhaling wave medium 110.
Plane locating for suction wave medium 110 is parallel with both planes locating for resonance coil 220 or intersects set angle,
When resonance coil 220 is horizontally arranged, inhale wave medium 110 can also in horizontal positioned, i.e., plane locating for suction wave medium 110 with
Both planes locating for resonance coil 220 are parallel.Inhaling wave medium 110 can also be vertically arranged, or inhale wave medium 110 and resonance
The certain angle of 220 relative tilt of coil, i.e. both planes locating for plane and resonance coil 220 locating for suction wave medium 110
Intersection is at an acute angle or a right angle etc..According to the annoyance level of electromagnetic interference (EMI) emissions, wave medium 110 and resonance line can be inhaled with appropriate adjustment
The relative positional relationship of circle 220.Projected area of the wave medium 110 on coil panel 200 is inhaled to exist more than or equal to resonance coil 220
Half projected area on bracket 210, such as the projection of resonance coil 220 can be made to be entirely located in the throwing for inhaling wave medium 110
Within shadow area, wave medium 110 is inhaled to the absorption function of electromagnetic interference (EMI) emissions to preferably play.
Magnetic stripe 230 includes body part 231 and mounting portion 232, and body part 231 and mounting portion 232 are substantially elongated, peace
Dress portion 232 is connected to the both ends of body part 231, and mounting portion 232 and the bending of body part 231 connect, for example, mounting portion 232 is opposite
Body part 231 bends 90 degree, i.e. mounting portion 232 and 231 Relative vertical of body part, and mounting portion 232 is respectively positioned on body part 231
It is ipsilateral so that mounting portion 232 and body part 231 connect into the magnetic stripe 230 of a Qian shape jointly.Peace is offered on bracket 210
Fill hole 211, mounting hole 211 along bracket 210 arranged radially at two rows, along the circumferential direction of bracket 210 between same row's mounting hole 211
Interval setting, mounting portion 232 is plugged in mounting hole 211, so that the installation of magnetic stripe 230 on the bracket 210 is realized, so that magnetic stripe
230 along bracket 210 circumferentially-spaced arrangement.
Positioning column 240 is mounted on the edge of bracket 210, positioning column 240 along bracket 210 circumferentially-spaced arrangement, adjacent two
Certain gap 241 is formed between a positioning column 240, when inhaling the installation of wave medium 110 on the bracket 210, inhales wave medium 110
A part of conducting wire 111 is wrapped on positioning column 240, and the another part for inhaling the conducting wire 111 of wave medium 110 is housed in the gap
In 241.Positioning column 240 is that positioning and supporting role well are played in the installation of suction wave medium 110, further increases and inhales wave medium
The stability and accuracy of 110 installations；The gap 241 between positioning column 240 provides simultaneously for the commutation of conducting wire 111 keeps away position sky
Between, be conducive to the smooth installation for inhaling wave medium 110.
It is directly installed on the bracket 210 of coil panel 200, can be regarded as wave apparatus will be inhaled by the way that wave medium 110 will be inhaled
100 are directly integrated on coil panel 200, and extra mounting space will not be occupied by inhaling wave medium 110, can further simplify entire
The structure of electromagnetic heating apparatus 10 is allowed to more compact.It is non-interference to inhale both wave medium 110 and resonance coil 220, can play
Respective heating function and electromagnetic interference (EMI) emissions absorption function.
Simultaneously refering to fig. 1, Fig. 2 and Figure 12, in some embodiments, inhaling wave apparatus 100 has the 4th kind of form of expression.It should
It inhales wave apparatus 100 to be formed by the metal pan 21 as calandria 20, at this point, the suction wave apparatus 100 can add not as electromagnetism
The constituent element of hot equipment 10, certainly, electromagnetic heating apparatus 10 will be present and the matched dependency structure of metal pan 21.
Specifically, electromagnetic heating apparatus 10 includes coil panel 200, bearing assembly 400, control circuit board 300 and isolation
Module 500, bearing assembly 400 are located at the top of coil panel 200, and coil panel 200 and control circuit board 300 are electrically connected.Isolation
Module 500 is connected between calandria 20 and control circuit board 300.
During electromagnetic heating apparatus 10 works, coil panel 200 can generate electromagnetic interference (EMI) emissions and influence other set
Standby normal work；Meanwhile other equipment can also generate electromagnetic interference (EMI) emissions near the electromagnetic heating apparatus 10, and then influence
The normal work of electromagnetic heating apparatus 10 itself.Due to the conductive energy of the calandrias 20 such as metal pan 21, for coil panel
Electromagnetic interference (EMI) emissions will be passed through the conduction of isolation module 500 to control by the electromagnetic interference (EMI) emissions of 200 attachmentes, metal pan 21
Circuit board 300, control circuit board 300 absorbs or offsets electromagnetic interference (EMI) emissions, so that electromagnetic heating apparatus 10 will not have an impact
The electromagnetic interference (EMI) emissions that other equipment work normally, the electromagnetic interference (EMI) emissions that other equipment generate can not also be influenced because being eliminated
The normal work of electromagnetic heating apparatus 10 itself, finally makes electromagnetic heating apparatus 10 meet EMI (Electromagnetic
Interference, electromagnetic interference) technical standard.
Isolation module 500 can allow for the received electromagnetic interference (EMI) emissions of metal pan 21 to conduct to control circuit board 300, with
Just control circuit board 300 absorbs or offsets electromagnetic interference (EMI) emissions.Meanwhile isolation module 500 can effectively prevent control circuit board
The circulation of electric current between 300 and metal pan 21.In brief, isolation module 500 can ensure metal pan 21 and control electricity
Electromagnetic signal circulation between road plate 300, but the current flowing between metal pan 21 and control circuit board 300 can be prevented.Cause
This can prevent 21 conducting electric current of metal pan, prevent user from passing through metal pan on the basis of effectively eliminating electromagnetic interference (EMI) emissions
21 electric shock of tool, improves the safety that entire electromagnetic heating apparatus 10 works.Therefore, make full use of the electric conductivity of metal pan 21 with
Electromagnetic interference (EMI) emissions are eliminated, make metal pan 21 itself have the function of inhaling wave medium 110, so that other suction wave media be omitted
110 setting only need to be arranged isolation module 500, obviously reduce the manufacturing cost of entire electromagnetic heating apparatus 10 in this way.
Isolation module 500 can ensure that electromagnetic signal circulates for capacitor etc., capacitor, and prevent current flowing.Carrying
Component 400 can be glass-ceramic panel 410 etc..Contact assembly 600 is arranged on bearing assembly 400, and contact assembly 600 can
It is connect with isolation module 500, when metal pan 21 is placed on bearing assembly 400, contact assembly 600 can have metal pan
21 abut against, so that the signal of electromagnetic interference (EMI) emissions can be transferred to isolation module by contact assembly 600 by metal pan 21
500。
Specifically, contact assembly 600 includes contact 610 and elastic component 620, elastic component 620 can be spring or elasticity
Magma offers accommodating hole 411 on bearing assembly 400, and contact 610 can be substantially in the shape of a rod, and contact 610 and accommodating hole 411 are sliding
Dynamic cooperation, contact 610 can be electrically connected by conductive line and isolation module 500, and elastic component 620 is housed in accommodating hole 411,
Elastic component 620 is connected between bearing assembly 400 and contact 610 simultaneously, and contact hole 22a is offered in metal pan 21, the contact hole
22 can match with contact 610.When metal pan 21 is placed on bearing assembly 400, elastic component 620 drives contact 610
Opposite accommodating hole 411 slides, until contact 610 is inserted into the contact hole 22a in metal pan 21.At this point, metal pan 21 can
Electromagnetic interference (EMI) emissions are transferred to isolation module 500 by contact 610.Alternatively, contact assembly 600 is directly to be attached to carrying group
Layer structure on part 400, alternatively, contact assembly 600 can also be electrical category lifting device etc., when electrical category lifting device liter
After rising, it can be abutted against with metal pan 21.
Metal pan 21 can have 21 or composite material cookware 21 etc., the electromagnetic heating apparatus 10 for aluminum pot tool 21, iron pan
It may be used as electromagnetic oven, electric cooker or electric pressure cooking saucepan etc..
The embodiment further includes the first metal pan 21, which adds with the above-mentioned electromagnetism with contact 610
Hot equipment 10 matches, and metal pan 21 includes pot ontology 22 and contact hole 22a, and contact hole 22a is used for and electromagnetic heating apparatus 10
Contact 610 match, when work, contact 610 is inserted into contact hole 22a, passes through the cooperation of contact 610 and contact hole 22a, metal pan
Electromagnetic interference (EMI) emissions can be transferred to isolation module 500 by contact by tool 21, meanwhile, isolation module 500 prevents electromagnetic heating
Electric current in equipment 10 enters metal pan 21, prevents user from getting an electric shock by metal pan 21, improves what metal pan 21 worked
Safety.
The embodiment further includes second of metal pan 21, true for the above-mentioned electromagnetic heating apparatus 10 with contact
On, contact 610 can be arranged in metal pan 21 using the contact 610 on contact hole 22a replacement electromagnetic heating apparatus 10
On, and contact hole 22a is arranged on electromagnetic heating apparatus 10.Second of metal pan 21 at this time includes pot ontology 22, contact
And elastic component, accommodating hole is offered on pot ontology, and contact is slidably matched with accommodating hole, and elastic component is housed in accommodating hole and abuts
Between pot ontology and contact, when metal pan 21 is placed on the bearing assembly 400 of electromagnetic heating apparatus 10, elastic component is driven
Moving contact is slided with respect to accommodating hole, until in the contact hole of contact insertion electromagnetic heating apparatus 10.At this point, contact is set with electromagnetic heating
Isolation module 500 in standby 10 is electrically connected, and the signal of electromagnetic interference (EMI) emissions can be transferred to by metal pan 21 by contact
Isolation module 500, and isolation module 500 can prevent the electric current on electromagnetic heating apparatus 10 from entering metal pan 21, it is ensured that metal
The safety of cookware 21.
3 and Figure 14 refering to fig. 1 simultaneously, in some embodiments, control circuit board 300 include power supply module 310, filtering mould
Block 320 and resonance modules 350.
Specifically, power supply module 310 includes input terminal and output end, the input terminal and AC power source of power supply module 310
It is electrically connected, the output end and resonance modules 350 of power supply module 310 are electrically connected.Power supply module 310 is for converting alternating current
It powers at direct current and for resonance modules 350.Filter module 320 be electrically connected at power supply module 310 and resonance modules 350 it
Between, for the high-frequency harmonic in filtering circuit.The input terminal and suction wave apparatus 100 of power supply module 310 are electrically connected or power supply mould
The output end of block 310 and the output end for inhaling the electric connection of wave apparatus 100 or power supply module 310 are electrically connected or filter with calandria 20
Wave module 320 and inhale wave apparatus 100 be electrically connected or filter module 320 and calandria 20 be electrically connected or resonance modules 350 with
It inhales the electric connection of wave apparatus 100 or resonance modules 350 and calandria 20 is electrically connected.
For the electromagnetic interference (EMI) emissions of resonance modules 350, calandria 20 or suction wave apparatus 100 can be by electromagnetic interference (EMI) emissions
It conducts to the power supply module 310 or the filter module 320 or resonance modules 350, the power supply module 310 or the filtering
Module 320 absorbs or offsets electromagnetic interference (EMI) emissions.
AC power source, that is, alternating current is converted into direct current by power supply module 310, filter module 320 filters out in direct current
Ripple is simultaneously powered for resonance modules 350, and calandria 20 or suction wave apparatus 100 conduct electromagnetic interference (EMI) emissions to power supply module 310
Or filter module 320 or resonance modules 350, so that power supply module 310 or filter module 320 or resonance modules 350 are absorbed or are supported
Disappear the electromagnetic interference (EMI) emissions.
It should be noted that power supply module 310 or filter module 320 or resonance modules 350 include inductively or capacitively equal filter
Wave element, the circuit of power supply module 310, filter module 320 and resonance modules 350 can also generate electromagnetic radiation, conduction to power supply
The electromagnetic interference (EMI) emissions of module 310 or filter module 320 or resonance modules 350 can be absorbed by filter element, can also be with confession
The electromagnetic radiation generated in electric module 310 or filter module 320 or 350 circuit of resonance modules offsets.
When the input terminal of power supply module 310 and suction wave apparatus 100 are electrically connected, power supply module 310 includes the first isolation
Unit 311, the first isolated location 311 include capacitor CY1 and capacitor CY2, capacitor CY1 connect with capacitor CY2 after with power supply module
310 input terminal is in parallel, inhales wave apparatus 100 and is electrically connected at the node S2 between capacitor CY1 and capacitor CY2.Inhale wave apparatus 100
Electromagnetic interference (EMI) emissions are conducted to the first isolated location 311, capacitor CY1 and capacitor CY2 absorb electromagnetic interference (EMI) emissions.In Figure 12
S1 point can with it is any one in S2 point, O2 point, O3 point, O4 point, O5 point, the one end resonance coil L2, the resonance coil L2 other end
Point is connected.
When the output end of power supply module 310 electrically connects with the electric connection of calandria 20 or filter module 320 with calandria 20
Connect or when resonance modules 350 and calandria 20 are electrically connected, isolation module 500 includes capacitor CY3, the first end of capacitor CY3 with
Calandria 20 is electrically connected, and the second end of capacitor CY3 and the output end of power supply module 310 or filter module 320 are electrically connected.Every
From the circulation that module 500 can effectively prevent electric current between control circuit board 300 and metal pan, prevent user from passing through metal pan
Tool electric shock improves the safety of entire electromagnetic heating apparatus work.O1 point in Figure 13 can be with O2 point, O3 point, O4 point, O5
Point, the one end resonance coil L2, any point in the resonance coil L2 other end are connected.
Power supply module 310 further includes filter unit 312 and rectification unit 313, and filter unit 312 is electrically connected at power supply mould
Between the input terminal and rectification unit 313 of block 310.Filter unit 312 filters out exchange for being filtered to the alternating current of input
Ripple in electricity.Rectification unit 313 is for converting alternating current to direct current, to power for resonance modules 350.
Filter unit 312 includes first resistor R1 and first capacitor C1.The both ends of first resistor R1 respectively with power supply module
The negative input VIN- of the input terminal of the electrode input end VIN+ and power supply module 310 of 310 input terminal is electrically connected.First
The both ends of capacitor C1 respectively with the input terminal of the electrode input end VIN+ of the input terminal of power supply module 310 and power supply module 310
Negative input VIN- is electrically connected.
Filter module 320 includes first coil L1 and the second capacitor C2.The first end and rectification unit 313 of first coil L1
Direct-flow positive pole output end O2 be electrically connected.The first end of second capacitor C2 and the second end of first coil L1 are electrically connected, the
The second end of two capacitor C2 and the direct current cathode output end O3 of rectification unit 313 are electrically connected.The direct-flow positive pole of rectification unit 313
Output end O2 is electrically used as the cathode output end of the output end of power supply module 310, the direct current cathode output end O3 of rectification unit 313
The cathode output end of output end as power supply module 310.
The direct-flow positive pole output end O2 of the second end of capacitor CY3 and rectification unit 313 be electrically connected or with rectification unit 313
Direct current cathode output end O3 be electrically connected or be electrically connected with the first end of the second capacitor C2 or the second end of the second capacitor C2
It is electrically connected.
Resonance modules 350 further include third the capacitor C3, the third capacitor C3 in parallel with resonance coil L2 also with it is described
Second capacitor C2 is in parallel.It can be high-frequency alternating current by DC inverter by resonance modules 350, and calandria 20 is added
Heat.
Control circuit board 300 further includes switch module 330, control module 340, protective module 360, varistor RZ and adopts
Sample resistance RK.
Switch module 330 is connected with resonance coil L2, for control the connection of resonance modules 350 and power supply module 310 with
It disconnects.Control module 340 and switch module 330 are electrically connected, the turn-on and turn-off for control switch module 330.
Switch module 330 includes power switch tube Q1 and clamp resistance R2.The collector and resonance line of power switch tube Q1
The one end for enclosing L2 is electrically connected, the emitter ground connection of power switch tube Q1,340 electricity of grid and control module of power switch tube Q1
Property connection.Clamp resistance R2 is electrically connected between the grid of power switch tube Q1 and the emitter of power switch tube Q1.Control
Module 340 is by power switch tube Q1 input control signal, thus the turn-on and turn-off of control switch module 330.Control letter
It number may be, for example, pulse signal.
In one embodiment, power switch tube Q1 is insulated gate bipolar transistor, and control module 340 is central processing
Device.
Protective module 360 is electrically connected at the electrode input end VIN+ and first resistor R1 of the input terminal of power supply module 310
Between.Protective module 360 is used to carry out overcurrent protection to circuit.In one embodiment, protective module 360 includes fuse F1.
Varistor RZ is in parallel with first resistor R1, for carrying out overvoltage protection to circuit.
Sampling resistor RK is electrically connected at the second end of the second capacitor C2 and the direct current cathode output end O3 of rectification unit 313
Between.Sampling resistor RK can also be electrically connected with control module 340, and sampling resistor RK is for acquiring the output of power supply module 310
Electric current and be transmitted to control module 340, control module 340 can according to the conducting of the current-controlled switch module 330 and
Shutdown.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of control circuit board characterized by comprising
Resonance modules, for generating changing magnetic field and can be heated to calandria；
Power supply module, the power supply module include input terminal and output end, input terminal and the AC power source electricity of the power supply module
Property connection, the output end of the power supply module and the resonance modules are electrically connected, and the power supply module is used to turn in alternating current
It changes direct current into and powers for the resonance modules；
Filter module, the filter module is electrically connected between the power supply module and the resonance modules, for filtering out electricity
High-frequency harmonic in road；
The input terminal of the power supply module and the output end and suction wave apparatus electricity for inhaling wave apparatus electric connection or the power supply module
Property connection or the power supply module output end and calandria be electrically connected or the filter module and inhale wave apparatus be electrically connected
Or the filter module and calandria are electrically connected or the resonance modules are electrically connected with suction wave apparatus or the resonance modules
It is electrically connected with calandria；
For the electromagnetic interference (EMI) emissions of the resonance modules, the calandria or the suction wave apparatus can be by the electromagnetic interferences
Conduct radiation is to the power supply module or the filter module or the resonance modules, the power supply module or the filter module
Or the resonance modules absorb or offset the electromagnetic interference (EMI) emissions.
2. control circuit board according to claim 1, which is characterized in that when the input terminal and suction wave dress of the power supply module
When setting electric connection, the power supply module includes the first isolated location, and first isolated location includes capacitor CY1 and capacitor
CY2, the capacitor CY1 is in parallel with the input terminal of the power supply module after connecting with the capacitor CY2, and the suction wave apparatus is electrical
The node being connected between the capacitor CY1 and the capacitor CY2.
3. control circuit board according to claim 1, which is characterized in that when the output end and calandria of the power supply module
When electric connection or the filter module and calandria are electrically connected or the resonance modules are electrically connected with calandria, the electricity
Magnetic heating equipment further includes isolation module, and the isolation module includes capacitor CY3, and the first end of the capacitor CY3 adds with described
Hot body is electrically connected, the second end of the capacitor CY3 and the output end of the power supply module or the filter module or described humorous
Module of shaking is electrically connected.
4. control circuit board according to claim 1, which is characterized in that the power supply module includes filter unit and rectification
Unit, the filter unit are electrically connected between the input terminal of the power supply module and the rectification unit, and the filtering is single
For being filtered to the alternating current of input, the rectification unit is used to the alternating current being converted into direct current member.
5. electromagnetic heating apparatus according to claim 4, which is characterized in that the filter unit includes:
First resistor, the both ends of the first resistor respectively with the electrode input end of the input terminal of the power supply module and the confession
The negative input of the input terminal of electric module is electrically connected；And
First capacitor, the both ends of the first capacitor respectively with the electrode input end of the input terminal of the power supply module and the confession
The negative input of the input terminal of electric module is electrically connected.
6. control circuit board according to claim 5, which is characterized in that the filter module includes:
The direct-flow positive pole output end of first coil, the first end of the first coil and the rectification unit is electrically connected；And
Second capacitor, the first end of second capacitor and the second end of the first coil are electrically connected, second capacitor
Second end and the rectification unit direct current cathode output end be electrically connected；The direct current cathode output end of the rectification unit is made
For the cathode output end of the output end of the power supply module, the direct-flow positive pole output end of the rectification unit is as the power supply mould
The cathode output end of the output end of block.
7. control circuit board according to claim 6, which is characterized in that the resonance modules include resonance coil and with it is humorous
The third capacitor of vibration coils from parallel connection of coils, the third capacitor are also in parallel with second capacitor.
8. control circuit board according to claim 7, which is characterized in that the second end and the rectification of the capacitor CY3
The direct-flow positive pole output end of unit be electrically connected be electrically connected with the direct current cathode output end of the rectification unit or with it is described
The first end of second capacitor is electrically connected or is electrically connected with the second end of second capacitor or one with the resonance coil
End is electrically connected or is electrically connected with the other end of the resonance coil.
9. control circuit board according to claim 8, which is characterized in that further include:
Switch module is connected with the resonance coil, for controlling company's make and break of the resonance modules Yu the power supply module
It opens；And
Control module is electrically connected, for controlling the turn-on and turn-off of the switch module with the switch module.
10. control circuit board according to claim 9, which is characterized in that the switch module includes power switch tube, institute
One end of the collector and the resonance coil of stating power switch tube is electrically connected, the emitter ground connection of the power switch tube,
The grid of the power switch tube and the control module are electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910562569.XA CN110191525A (en) | 2019-06-26 | 2019-06-26 | Electromagnetic heating apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910562569.XA CN110191525A (en) | 2019-06-26 | 2019-06-26 | Electromagnetic heating apparatus |
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| CN108882422A (en) * | 2017-05-12 | 2018-11-23 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic heating control circuit, method and electromagnetic heating apparatus |
| CN210629893U (en) * | 2019-06-26 | 2020-05-26 | 深圳市鑫汇科股份有限公司 | Electromagnetic heating equipment |
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