CN207283510U - A kind of filtering system, the electric appliance and electromagnetic oven with filtering system - Google Patents
A kind of filtering system, the electric appliance and electromagnetic oven with filtering system Download PDFInfo
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- CN207283510U CN207283510U CN201721182770.8U CN201721182770U CN207283510U CN 207283510 U CN207283510 U CN 207283510U CN 201721182770 U CN201721182770 U CN 201721182770U CN 207283510 U CN207283510 U CN 207283510U
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- filtering system
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Abstract
The utility model is suitable for appliance field, there is provided a kind of filtering system, the electric appliance and electromagnetic oven with filtering system.Filtering system includes filter circuit and filtering magnet ring.A kind of filtering system that the utility model embodiment provides, including filter circuit and filtering magnet ring；By the way that the cable of power inleting terminal is set around on filtering magnet ring, it is connected in the filter circuit of power inleting terminal, it can be very well protected from electromagnetic interference, and system forms the less component of needs in itself, cost is not only effectively controlled, also as system occupies less space, and it is more favorable for PCB layouts, reduce EMC costs, solve in the prior art, electric appliance prevent electromagnetic interference need to carry out its inside larger transformation and the problem of cause the larger waste of manpower and materials cost.
Description
Technical field
The utility model belongs to appliance field, more particularly to a kind of filtering system, the electric appliance and electromagnetism with filtering system
Stove.
Background technology
Electric appliance is during use, if subjected to electromagnetic interference, then can influence its using effect.
In the prior art, electromagnetic interference mainly has two kinds of Conduction Interference and radiation interference, in order to make electric appliance reach EMC projects
Testing standard, larger transformation can be carried out to the wiring board inside electric appliance, have certain effect to electromagnetism interference, electricity can be made
Device reaches basic testing standard, but there are the problem of be that this process is not only time-consuming and laborious, while also increase larger
The cost of wiring board.
Utility model content
The utility model embodiment provides a kind of filtering system, it is intended to solves in the prior art, electric appliance prevents electromagnetic interference
The problem of needing to carry out its inside larger transformation and cause the larger waste of manpower and materials cost.
The utility model embodiment is achieved in that a kind of filtering system, including：Filter circuit and filtering magnet ring；
The filter circuit includes the filter capacitor, common mode inductance and choke coil for being connected to power inleting terminal；
The cable of the power inleting terminal is set around on the filtering magnet ring, its winding number of turn is at least three circles.
Preferably, the filter capacitor, common mode inductance and choke coil are sequentially connected to the power inleting terminal.
Preferably, the filtering magnet ring is composed of two half-ring magnets.
Preferably, described two half-ring magnets are arranged on retractable fixed structure, are buckled into by the fixed structure
Loop configuration.
Preferably, the semi-circular magnet is arranged in the housing of place equipment, is equipped with the housing described for installing
The structure of magnet.
Preferably, the capacitance of the filter capacitor is 5 μ F to 10 μ F.
Preferably, where the filtering magnet ring is arranged at the electric power incoming line mouth of equipment.
Preferably, on the fixed structure where the filtering magnet ring is arranged on the outside of the electric power incoming line mouth of equipment.
The utility model embodiment also provides a kind of electric appliance with filtering system, including electric appliance main body, and arranged on institute
The filtering system of the power inleting terminal of electric appliance main body is stated, the filtering system is as described in claim 1-8 any one.
The utility model embodiment also provides a kind of electromagnetic oven, including electromagnetism furnace main body, and arranged on the electromagnetic oven master
The filtering system of the power inleting terminal of body, the filtering system is as described in claim 1-8 any one.
A kind of filtering system that the utility model embodiment provides, including filter circuit and filtering magnet ring；By by power supply
The cable of end of incoming cables is set around on filtering magnet ring, is connected in the filter circuit of power inleting terminal, can effectively be prevented
Only electromagnetic interference, and system forms the less component of needs in itself, cost is not only effectively controlled, also as system occupies
Less space, and PCB layouts are more favorable for, EMC costs are reduced, are solved in the prior art, electric appliance prevents electromagnetic interference
The problem of needing to carry out its inside larger transformation and cause the larger waste of manpower and materials cost.
Brief description of the drawings
Fig. 1 is a kind of filtering system that the utility model embodiment one provides；
Fig. 2 is a kind of filter circuit that the utility model embodiment one provides；
Fig. 3 is a kind of filtering magnet ring mounting structure schematic diagram that the utility model embodiment two provides；
Fig. 4 is a kind of internal structure for electromagnetic oven that the utility model embodiment provides.
Embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, is further elaborated the utility model.It should be appreciated that specific embodiment described herein is only explaining
The utility model, is not used to limit the utility model.
The term used in the utility model embodiment is only merely for the purpose of description specific embodiment, and is not intended to
Limit the utility model.The utility model embodiment and " one kind " of singulative used in the attached claims,
" described " and "the" are also intended to including most forms, unless context clearly shows that other implications.It is also understood that herein
The term "and/or" used refers to and any or all may be combined comprising the associated list items purpose of one or more.
A kind of filtering system that the utility model embodiment provides, including filter circuit and filtering magnet ring；By by power supply
The cable of end of incoming cables is set around on filtering magnet ring, is connected in the filter circuit of power inleting terminal, can effectively be prevented
Only electromagnetic interference, and system forms the less component of needs in itself, cost is not only effectively controlled, also as system occupies
Less space, and PCB layouts are more favorable for, EMC costs are reduced, are solved in the prior art, electric appliance prevents electromagnetic interference
The problem of needing to carry out its inside larger transformation and cause the larger waste of manpower and materials cost.
Embodiment one：
A kind of filtering system 10 provided as shown in Figure 1 for the utility model embodiment, including filter circuit 11 and filtering
Magnet ring 12；
Filter circuit 11 includes the filter capacitor, common mode inductance and choke coil for being connected to power inleting terminal；
The cable of power inleting terminal is set around on filtering magnet ring, its winding number of turn is at least three circles.
In the utility model embodiment, as shown in Fig. 2, filter circuit 11 includes filter capacitor, common mode inductance and chokes
Circle；Line capacitance C1 and choke coil L2 is used to filter out DM EMI signal, and it is X2's that line capacitance C1, which usually selects safety grade,
Electromagnetic interference, can be dredged telegram in reply road, common mode inductance L1 is used for filtering common mode interference letter by thin-film capacitor by capacitance capacitive reactance characteristic
Number, electromagnetic interference is absorbed by the stop of inductance induction reactance and the loss of magnetic core, the filter circuit that C1, L1, L2 are formed can be effective
Suppress harmonic wave to exterior environmental effects, filter circuit 11 is connected to the power inleting terminal of 10 place equipment of filtering system, filter
Ripple works well, it is ensured that place equipment from electromagnetic radiation influence.
In the utility model embodiment, filtering system 10 further includes filtering magnet ring 12, i.e., is in what magnetic material was made
Cricoid object, ring-type herein can be the ring-types that overall ring-type or some are composed, and not make herein
It is specific to limit.On filtering magnet ring 12, the cable of the power inleting terminal of equipment where being wound with it.The place of filtering system 10 is set
Standby to produce harmonic wave in use, the magnetic conductivity of above-mentioned 12 magnetic core of filtering magnet ring can occur as the frequency of ripple is different
Change, therefore can effectively filter harmonic wave.
In the utility model embodiment, filter circuit 11 forms two-stage common mode filtering with filtering magnet ring 12, can be more effective
Filtering common mode interference, the circuit that they are composed, the frequency range for the harmonic wave that can be filtered out is wider, and natural energy more effectively presses down
Harmonic wave processed advantageously reduces electromagnetic interference to exterior environmental effects.
In the utility model embodiment, in order to reach the filter strength of security regulations, the cable of power inleting terminal is being filtered
The winding number of turns on ripple magnet ring 12 should can take too big in a relatively reasonable scope, in the case where the number of turn is too many
Space, the space control of equipment where being unfavorable for；The number of turn very little in the case of, be unable to reach expected filter effect, then just
Need to be adjusted filter circuit, to reach filtering regulation, such a mode can bring about operational trouble and inconvenience；
Therefore in one of the utility model preferably scope, the winding number of turns of the cable of power inleting terminal on filtering magnet ring 12 should
At least three circles.
A kind of filtering system that the utility model embodiment provides, including filter circuit and filtering magnet ring；By by power supply
The cable of end of incoming cables is set around on filtering magnet ring, is connected in the filter circuit of power inleting terminal, can effectively be prevented
Only electromagnetic interference, and system forms the less component of needs in itself, cost is not only effectively controlled, also as system occupies
Less space, and PCB layouts are more favorable for, EMC costs are reduced, are solved in the prior art, electric appliance prevents electromagnetic interference
The problem of needing to carry out its inside larger transformation and cause the larger waste of manpower and materials cost.
Embodiment two：
In the utility model embodiment, a kind of filtering system 10, including filter circuit 11 and filtering magnet ring 12；
Filter circuit 11 includes filter capacitor, common mode inductance and choke coil, wherein, filter capacitor, common mode inductance and chokes
Circle be sequentially connected to electric power incoming line port, the advantages of this arrangement are as follows, 10 place equipment of filtering system during use,
Harmonic wave can be produced, harmonic wave can have an impact the functional structure of place equipment in itself, equipment where filter circuit 11 is arranged on
Electric power incoming line mouth, filter circuit 11 is contacted and is filtered with harmonic wave so that filter circuit 11
Effect is realized more preferable.
In the utility model embodiment, as shown in Fig. 2, filtering magnet ring 12 can also be by two semiorbicular magnet structures
Into.Also, two half-ring magnets are arranged on a fixed structure 13, above-mentioned fixed structure 13 can carry out folding, to place
Above-mentioned semi-circular magnet, or two semiorbicular magnets of dismounting, two semiorbicular magnets, can be with by the fixed structure 13
The loop configuration of an entirety is buckled into, to reach filtering system.
In another embodiment of the utility model, filtering magnet ring 12 is made of two semi-circular magnets, wherein, two and half
Toroidal magnet is arranged on the enclosure interior of the equipment at the place of filtering system 10, corresponding, the shell of the equipment where filtering system 10
Internal portion is provided with the structure that can install above-mentioned semi-circular magnet, is stably fixed to inside equipment, is also used for two
A semi-circular magnet fixes the loop configuration in an entirety, to reach filtering system.
Filter circuit 11 includes filter capacitor, common mode inductance and choke coil, and one in the utility model preferably implements
In example, the capacitance of filter capacitor is 5 μ F to 10 μ F, and common mode inductance sensibility reciprocal is 5mH to 7mH, and choke coil sensibility reciprocal is 170 μ H to 330 μ
H, in above parameter area, filtering system 10 can reach more preferable filter effect.
In another preferably embodiment of the utility model, the electric power incoming line mouth of equipment where filtering magnet ring 12 is arranged at
Place.The harmonic wave that 10 place equipment of filtering system produces during use, can all reach electric power incoming line mouth, such setting side
Formula, to greatest extent can fall the harmonic filtration that the equipment where filtering system 10 produces so that the filtering of filtering system 10
Effect is more preferable, and the protection to place equipment has been better achieved.In another preferably embodiment of the utility model, magnetic is filtered
It is similar on a fixed structure 13 where ring 12 is arranged on the outside of the electric power incoming line mouth of equipment, can be to greatest extent by institute
The using effect of equipment where the harmonic filtration that equipment produces is fallen, be ensure that.
A kind of filtering system that the utility model embodiment provides, including filter circuit and filtering magnet ring；By by power supply
The cable of end of incoming cables is set around on filtering magnet ring, is connected in the filter circuit of power inleting terminal, can effectively be prevented
Only electromagnetic interference, and system forms the less component of needs in itself, cost is not only effectively controlled, also as system occupies
Less space, and PCB layouts are more favorable for, EMC costs are reduced, are solved in the prior art, electric appliance prevents electromagnetic interference
The problem of needing to carry out its inside larger transformation and cause the larger waste of manpower and materials cost.
Embodiment three：
In the utility model embodiment, a kind of electric appliance with filtering system, including electric appliance main body, and arranged on electric appliance
The filtering system 10 of the power inleting terminal of main body,
In the utility model embodiment, filtering system 10 includes filter circuit 11 and filtering magnet ring 12；
Filter circuit 11 includes the filter capacitor, common mode inductance and choke coil for being connected to power inleting terminal.
Filtering system 10 in the utility model embodiment, functional structure are no longer superfluous herein as described in embodiment one, two
State.
A kind of electric appliance with filtering system that the utility model embodiment provides, by the filter for being installed on its power inleting terminal
Wave system is united, and can be very well protected from electromagnetic interference, and filtering system forms the less component of needs in itself, not only effectively
Electric appliance cost is controlled, also as filtering system occupies less space, and electric appliance PCB layouts is more favorable for, reduces EMC
Cost, solves in the prior art, and electric appliance prevents electromagnetic interference from needing to carry out its inside larger transformation and cause manpower and materials
The problem of larger waste of cost.
Example IV：
The partial schematic diagram being illustrated in figure 3 inside a kind of electromagnetic oven of the utility model embodiment offer.
In the utility model embodiment, a kind of electromagnetic oven, including electromagnetism furnace main body 30, and arranged on electromagnetism furnace main body 30
Power inleting terminal filtering system 10,
In the utility model embodiment, filtering system 10 includes filter circuit 11 and filtering magnet ring 12；
Filter circuit 11 includes the filter capacitor, common mode inductance and choke coil for being connected to power inleting terminal.
Filtering system 10 in the utility model embodiment, functional structure are no longer superfluous herein as described in embodiment one, two
State.
A kind of electromagnetic oven with filtering system that the utility model embodiment provides, by being installed on its power inleting terminal
Filtering system, can be very well protected from electromagnetic interference, and filtering system forms the less component of needs in itself, not only has
Effect controls electromagnetic oven cost, also as filtering system occupies less space, and is more favorable for the PCB cloth inside electromagnetic oven
Office, reduce EMC costs, solve in the prior art, electric appliance prevent electromagnetic interference need to its inside carry out it is larger transformation and
The problem of causing the larger waste of manpower and materials cost.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of filtering system, it is characterised in that the filtering system includes：Filter circuit and filtering magnet ring；
The filter circuit includes the filter capacitor, common mode inductance and choke coil for being connected to power inleting terminal；
The cable of the power inleting terminal is set around on the filtering magnet ring, its winding number of turn is at least three circles.
2. filtering system as claimed in claim 1, it is characterised in that the filter capacitor, common mode inductance and choke coil are successively
It is connected to the power inleting terminal.
3. filtering system as claimed in claim 1, it is characterised in that the filtering magnet ring combined by two half-ring magnets and
Into.
4. filtering system as claimed in claim 3, it is characterised in that described two half-ring magnets are arranged on retractable fixed knot
On structure, loop configuration is buckled into by the fixed structure.
5. filtering system as claimed in claim 4, it is characterised in that the semi-circular magnet is arranged on the housing of place equipment
It is interior, the structure for being used for installing the magnet is equipped with the housing.
6. filtering system as claimed in claim 1, it is characterised in that the capacitance of the filter capacitor is 5 μ F to 10 μ F.
7. filtering system as claimed in claim 1, it is characterised in that it is described filtering magnet ring be arranged at where equipment power supply into
At line mouth.
8. filtering system as claimed in claim 1, it is characterised in that it is described filtering magnet ring be arranged at where equipment power supply into
On a fixed structure on the outside of line mouth.
9. a kind of electric appliance with filtering system, including electric appliance main body, and the power inleting terminal arranged on the electric appliance main body
Filtering system, the filtering system is as described in claim 1-8 any one.
10. a kind of electromagnetic oven, including electromagnetism furnace main body, and the filtering system of the power inleting terminal arranged on the electromagnetism furnace main body
System, the filtering system is as described in claim 1-8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721182770.8U CN207283510U (en) | 2017-09-15 | 2017-09-15 | A kind of filtering system, the electric appliance and electromagnetic oven with filtering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721182770.8U CN207283510U (en) | 2017-09-15 | 2017-09-15 | A kind of filtering system, the electric appliance and electromagnetic oven with filtering system |
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| Publication Number | Publication Date |
|---|---|
| CN207283510U true CN207283510U (en) | 2018-04-27 |
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ID=61981176
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721182770.8U Active CN207283510U (en) | 2017-09-15 | 2017-09-15 | A kind of filtering system, the electric appliance and electromagnetic oven with filtering system |
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| CN (1) | CN207283510U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020057447A1 (en) * | 2018-09-18 | 2020-03-26 | 晶晨半导体(上海)股份有限公司 | Projection optical machine for suppressing electromagnetic interference |
-
2017
- 2017-09-15 CN CN201721182770.8U patent/CN207283510U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020057447A1 (en) * | 2018-09-18 | 2020-03-26 | 晶晨半导体(上海)股份有限公司 | Projection optical machine for suppressing electromagnetic interference |
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