CN109524950A - Filter circuit, timer and cooking apparatus - Google Patents
Filter circuit, timer and cooking apparatus Download PDFInfo
- Publication number
- CN109524950A CN109524950A CN201811620644.5A CN201811620644A CN109524950A CN 109524950 A CN109524950 A CN 109524950A CN 201811620644 A CN201811620644 A CN 201811620644A CN 109524950 A CN109524950 A CN 109524950A
- Authority
- CN
- China
- Prior art keywords
- timer
- movable contact
- filter circuit
- signal end
- contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
- F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
Abstract
The invention discloses a kind of filter circuit, timer and cooking apparatus, wherein filter circuit includes: the first signal end and second signal end；Stationary contact, stationary contact are connect with the first signal end；First movable contact；Load, load in series is between the first movable contact and second signal end, for absorbing surge current when the connection between the first movable contact and stationary contact is connected；Second movable contact, the second movable contact are connect with second signal end；Drive module, for successively driving the first movable contact and the second movable contact to act, in turn switch on the connection between connection and the second movable contact and stationary contact between the first movable contact and stationary contact.Replace traditional filter band to realize the absorption to surge current by simple component as a result, reliability is higher, and structure is simple, greatly reduces the complexity of circuit, while having saved production cost.
Description
Technical field
The present invention relates to living electric apparatus technical field, in particular to a kind of filter circuit, a kind of timer and a kind of culinary art
Utensil.
Background technique
With the continuous development of electronic technology, surge current is also more next to the harm of household electrical appliance (for example, micro-wave oven etc.)
It is bigger, especially to the household electrical appliance controlled by contact switch.
In the related technology, above-mentioned household electrical appliance can produce higher than the rated current of itself work in the moment of start-up operation
The surge current of decades of times, which can cause very big impact to the component in household electrical appliance, if continually opened
Dynamic household electrical appliance, then easily cause the damage of electronic device.Therefore, general using anti-in the power input of household electrical appliance
The circuit of surge current, such as filter band are protected.However, structure is complicated for the circuit of the Antisurge current, not only increase
Circuit loss so that circuit be easy to cause damage reduces the reliability of circuit, and considerably increases production cost.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the invention
First purpose is to propose a kind of filter circuit, be realized instead of traditional filter band by simple component to surge electricity
The absorption of stream, reliability is higher, and structure is simple, greatly reduces the complexity of circuit, while having saved production cost.
Second object of the present invention is to propose a kind of timer.
Third object of the present invention is to propose a kind of cooking apparatus.
To achieve the above object, first aspect present invention embodiment proposes a kind of filter circuit, comprising: the first signal end
With second signal end；Stationary contact, the stationary contact are connect with first signal end；First movable contact；Load, the load string
It is coupled between first movable contact and the second signal end, between first movable contact and the stationary contact
When connection is connected, surge current is absorbed；Second movable contact, second movable contact are connect with the second signal end；Drive mould
Block, for successively driving first movable contact and second movable contact to act, in turn switch on first movable contact with
The connection between connection and second movable contact and the stationary contact between the stationary contact.
Filter circuit according to an embodiment of the present invention first passes through drive module and connects between the first movable contact and stationary contact
Connection, so that load absorption surge current, in the connection connected by drive module between the second movable contact and stationary contact, thus
Replace traditional filter band to realize the absorption to surge current by simple component, reliability is higher, and structure letter
It is single, the complexity of circuit is greatly reduced, while having saved production cost.
In addition, filter circuit according to the above embodiment of the present invention can also have the following additional technical features:
According to one embodiment of present invention, the load includes at least one of resistance, inductance or capacitor.
According to one embodiment of present invention, the resistance is cement resistor.
According to one embodiment of present invention, time and first movable contact when second movable contact acts act
When time between the time difference be greater than preset time.
To achieve the above object, second aspect of the present invention embodiment proposes a kind of timer, including motor and timing are adjusted
Module is saved, the timing adjustment module includes the filter circuit that first aspect present invention embodiment proposes；The first of the motor
Hold the first power input as the timer, the filtered electrical in the second end of the motor and the timing adjustment module
Second signal end connection in road；The first signal end in filter circuit in the timing adjustment module is as the timer
Second source input terminal, the drive module in filter circuit in the timing adjustment module is the timing tune of the timer
Save knob.
Timer according to an embodiment of the present invention replaces traditional filter band to realize to surge by simple component
The absorption of electric current, reliability is higher, and structure is simple, greatly reduces the complexity of circuit, while having saved production cost.
In addition, timer according to the above embodiment of the present invention can also have the following additional technical features:
According to one embodiment of present invention, further includes: power conditioning module, the power conditioning module include the present invention
The filter circuit that first aspect embodiment proposes；The first signal end in filter circuit in the power conditioning module is as institute
The output end of timer is stated, the second end at the second signal end in the filter circuit in the power conditioning module and the motor
It connects, the drive module in filter circuit in the power conditioning module is the power regulating knob of the timer.
According to one embodiment of present invention, the load in the filter circuit in the timing adjustment module is arranged described
On the housing interior side-wall of timer or it is covered by the shell of the timer.
According to one embodiment of present invention, the load in the filter circuit in the power conditioning module is arranged described
On the housing interior side-wall of timer or it is covered by the shell of the timer.
To achieve the above object, third aspect present invention embodiment proposes a kind of cooking apparatus, including the present invention second
The timer that aspect embodiment proposes.
Cooking apparatus according to an embodiment of the present invention replaces traditional filter band to realize to wave by simple component
The absorption of electric current is gushed, reliability is higher, and structure is simple, greatly reduces the complexity of circuit, while having saved and being produced into
This.
In addition, cooking apparatus according to the above embodiment of the present invention can also have the following additional technical features:
According to one embodiment of present invention, the cooking apparatus is micro-wave oven.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of filter circuit according to an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the timer of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the timer of one embodiment of the invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings the filter circuit proposed according to embodiments of the present invention, timer and cooking apparatus described.
Fig. 1 is the structural schematic diagram of filter circuit according to an embodiment of the present invention.As shown in Figure 1, the embodiment of the present invention
Filter circuit 10 may include the first signal end 1, second signal end 2, stationary contact 3, the first movable contact 4, the 5, second movable contact 6 of load
With drive module (in Fig. 1 not specifically illustrated).
Wherein, stationary contact 3 is connect with the first signal end 1；Load 5 be series at the first movable contact 4 and second signal end 2 it
Between, for absorbing surge current when the connection between the first movable contact 4 and stationary contact 3 is connected；Second movable contact 6 and second
Signal end 2 connects；Drive module is dynamic in turn switch on first for successively driving the first movable contact 4 and the second movable contact 6 to act
The connection between connection and the second movable contact 6 and stationary contact 3 between contact 4 and stationary contact 3.
According to one embodiment of present invention, load may include at least one of resistance, inductance or capacitor.Namely
It says, the load in above-described embodiment can be the component of the absorbable surge currents such as resistance, inductance or capacitor, or can be electricity
The simple circuit of the compositions such as resistance, inductance or capacitor, to realize the absorption to surge current.
Specifically, being generally provided only with the second movable contact 6 and stationary contact 3 in household electrical appliance (or certain components) at present
The contact switch of composition, to control household electrical appliance, wherein the first signal end 1 and second signal end 2 can be regard as the family
The power input of electrical appliance.It drives the second movable contact 6 to be connected to stationary contact 3 by drive module, may make external power supply pair
Household electrical appliance are powered, so that household electrical appliance are started to work；The second movable contact 6 and stationary contact are driven by drive module
3 disconnect, and may make external power supply stopping to be powered household electrical appliance, so that household electrical appliance stop working.However, being in
When electrical appliance is just started to work, biggish surge current can produce, it, can be to household if the surge current flows into household electrical appliance
Component in electric appliance damages.
Therefore, in the embodiment of the present invention, one movable contact of increase on above-mentioned contact switch, i.e. the first movable contact 4, and
It connects behind first movable contact 4 one and loads 5, such as cement resistor, at this point, can first pass through drive module drives the first movable contact
4 are connected to stationary contact 3, to drive the second movable contact 6 and stationary contact 3 by load absorption surge current, then by drive module
Connection, enables external power supply to be normally powered to household electrical appliance, so that household electrical appliance start to work normally.By
This replaces traditional filter band to realize the absorption to surge current by simple component, and reliability is higher, and structure
Simply, the complexity of circuit is greatly reduced, while having saved production cost.
According to one embodiment of present invention, the second movable contact 6 act when time and the first movable contact 4 act when
Between between the time difference be greater than preset time.
Wherein, preset time can be to ensure to load that the time required for surge current can be fully absorbed.In above-mentioned implementation
In example, drive module can be first passed through and drive the movement of the first movable contact 4, and continue preset time (Millisecond), to ensure to load 5 energy
It is enough preferably to sponge surge current, then the movement of the second movable contact 6 is driven by drive module, so that household electrical appliance start normally
Work, therefore, can be effective by adjusting the difference of injection time being connected between the first movable contact 4 and the second movable contact 6 and stationary contact 3
Ground sponges surge current, substantially increases the reliability of filter circuit.
Fig. 2 is the structural schematic diagram of timer according to an embodiment of the present invention.As shown in Fig. 2, the embodiment of the present invention is determined
When device 1000 may include motor M and timing adjustment module 100.
Wherein, timing adjustment module 100 may include above-mentioned filter circuit 10；The first end of motor M can be used as timer
The second end of 1000 the first power input, motor M can be believed with second in the filter circuit 10 in timing adjustment module 100
Number end 2 connection；The first signal end 1 in filter circuit 10 in timing adjustment module 100 can be used as the second of timer 1000
Power input, the drive module (not specifically illustrated in Fig. 2) in filter circuit 10 in timing adjustment module 100 can be timing
The timing adjusting knob (not specifically illustrated in Fig. 2) of device 1000.
Specifically, the contact switch that the second movable contact 6 and stationary contact 3 form generally is provided only in timer at present.
In the initial state, the second movable contact 6 and stationary contact 3 is separated, and the motor M inside timer 1000 can not be operated.When logical
When spending the timing adjusting knob selection working time, the second movable contact 6 can be driven to be connected to stationary contact 3, the first electric current flows into timing
Motor M in device 1000 is so that motor starts running, at this point, the reduction gearing inside timer 1000 can drive timer 1000
Internal one rotates with cam jaggy, and when the notch of the cam turns to designated position, one end of drive rod can be fallen
Enter the notch of cam, so that the second movable contact 6 is disconnected with stationary contact 3, the motor M inside timer 1000 stops working,
To realize the function of timing.
However, in practical applications, after selecting the working time by timing adjusting knob, the first power supply can produce surge
Electric current is connected to if directly driving the second movable contact 6 with stationary contact 3, and surge current is easy to inside timer 1000
Component damages.Therefore, in the embodiment of the present invention, increase a movable contact, i.e., the first dynamic touching on above-mentioned contact switch
Point 4, and load 5 of connecting behind the first movable contact 4, such as cement resistor, are selecting work by timing adjusting knob
After time, the first movable contact 4 can first be driven to be connected to stationary contact 3, so that surge current can be by load (for example, cement resistor
Deng) absorbed, after lasting preset time (guarantee preferably to sponge surge current), then drive the second movable contact
6 are connected to stationary contact 3, so that the motor M inside timer 1000 starts to be normally carried out work, at this point, timer 1000 can lead to
Cross the function of the realizations timings such as internal reduction gearing, cam and drive rod.It is replaced as a result, by simple component traditional
For filter band to realize the absorption to surge current, reliability is higher, and structure is simple, greatly reduces the complexity of circuit,
Production cost has been saved simultaneously.
It should be noted that the load 5 in filter circuit 10 in timing adjustment module 100 may be provided at timer 1000
Housing interior side-wall on or be covered by the shell of timer 1000.
That is, can by the load 5 in the filter circuit 10 in timing adjustment module 100, for example, cement resistor etc.,
It is placed on the housing interior side-wall of timer 1000, can also will load 5 by the shell of increase timer 1000 and be coated on and determine
When device 1000 inside.
According to one embodiment of present invention, as shown in figure 3, timer 1000 may also include power conditioning module 200.
Wherein, power conditioning module 200 may include above-mentioned filter circuit 10；Filtered electrical in power conditioning module 200
Output end of first signal end 1 as timer 1000 in road 10, in filter circuit 10 in power conditioning module 200
Binary signal end 2 is connect with the second end of motor M, and the drive module in filter circuit 10 in power conditioning module 200 is (in Fig. 3
It is not specifically illustrated) be timer 1000 power regulating knob (not specifically illustrated in Fig. 3).
Specifically, distribution can be selected different by the power regulating knob of timer 1000 within certain period
Turn-on time is connected to the second movable contact in the filter circuit 10 in driving power adjustment module 200 with stationary contact, thus real
Now to the adjusting of the output power of timer 1000.
It is understood that can first drive the first movable contact 4 to connect with stationary contact 3 in order to avoid surge current damages
It is logical, to absorb by loading 5 (for example, cement resistors) to surge current, after lasting preset time, then pass through power tune
The second movable contact of transmission system drives inside section module 200 is connected to stationary contact, at this point, load 5 is shorted, electric current no longer passes through
Load 5.Replace traditional filter band to realize the absorption to surge current by simple component as a result, reliability is higher,
And structure is simple, greatly reduces the complexity of circuit, while having saved production cost.
It should be noted that the load 5 in filter circuit 10 in power conditioning module 100 may be provided at timer 1000
Housing interior side-wall on or be covered by the shell of timer 1000.
That is, can by the load 5 in the filter circuit 10 in power conditioning module 100, for example, cement resistor etc.,
It is placed on the housing interior side-wall of timer 1000, can also will load 5 by the shell of increase timer 1000 and be coated on and determine
When device 1000 inside.
Filter circuit in above-described embodiment as a result, can not only effectively absorb timing only with timing function
Surge current in device, and the surge in the timer with timing function and power regulation functions can be effectively absorbed
Electric current.
It is understood that the filter circuit in above-described embodiment can not only be applied on the timer, and can answer
With on other products with contact switch, wherein by select suitable load and contact appropriate conducting when
Sequence is poor, can effectively absorb to surge current.
In conclusion timer according to an embodiment of the present invention, by simple component replace traditional filter band with
Realize the absorption to surge current, reliability is higher, and structure is simple, greatly reduces the complexity of circuit, saves simultaneously
Production cost.
In addition, the embodiment of the present invention also proposed a kind of cooking apparatus comprising above-mentioned timer.Wherein, this is cooked
Utensil of preparing food can be micro-wave oven.
Cooking apparatus according to an embodiment of the present invention replaces traditional filter band to realize to wave by simple component
The absorption of electric current is gushed, reliability is higher, and structure is simple, greatly reduces the complexity of circuit, while having saved and being produced into
This.
It should be appreciated that each section of the invention can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of column technology or their combination are realized: having a logic gates for realizing logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
In addition, in the description of the present invention, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ",
"upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " clockwise ", " inverse time
The orientation or positional relationship of the instructions such as needle ", " axial direction ", " radial direction ", " circumferential direction " is to be based on the orientation or positional relationship shown in the drawings,
Be merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of filter circuit characterized by comprising
First signal end and second signal end；
Stationary contact, the stationary contact are connect with first signal end；
First movable contact；
Load, the load in series is between first movable contact and the second signal end, for when the described first dynamic touching
When connection between point and the stationary contact is connected, surge current is absorbed；
Second movable contact, second movable contact are connect with the second signal end；
Drive module, for successively driving first movable contact and second movable contact to act, in turn switch on described the
The connection between connection and second movable contact and the stationary contact between one movable contact and the stationary contact.
2. filter circuit according to claim 1, which is characterized in that the load includes in resistance, inductance or capacitor
It is at least one.
3. filter circuit according to claim 2, which is characterized in that the resistance is cement resistor.
4. filter circuit according to claim 1, which is characterized in that second movable contact act when time with it is described
The time difference between time when first movable contact acts is greater than preset time.
5. a kind of timer characterized by comprising motor and timing adjustment module, the timing adjustment module include as weighed
Benefit requires the described in any item filter circuits of 1-4；
First power input of the first end of the motor as the timer, the second end of the motor and the timing
Second signal end connection in filter circuit in adjustment module；
Second source input terminal of the first signal end in filter circuit as the timer in the timing adjustment module,
The drive module in filter circuit in the timing adjustment module is the timing adjusting knob of the timer.
6. timer according to claim 5, which is characterized in that further include: power conditioning module, the power regulation mould
Block includes filter circuit according to any one of claims 1-4；
Output end of first signal end as the timer in filter circuit in the power conditioning module, the power
Second signal end in filter circuit in adjustment module is connect with the second end of the motor, in the power conditioning module
Drive module in filter circuit is the power regulating knob of the timer.
7. timer according to claim 5, which is characterized in that negative in the filter circuit in the timing adjustment module
Load is arranged on the housing interior side-wall of the timer or is covered by the shell of the timer.
8. timer according to claim 6, which is characterized in that negative in the filter circuit in the power conditioning module
Load is arranged on the housing interior side-wall of the timer or is covered by the shell of the timer.
9. a kind of cooking apparatus characterized by comprising such as the described in any item timers of claim 5-8.
10. cooking apparatus according to claim 7, which is characterized in that the cooking apparatus is micro-wave oven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811620644.5A CN109524950A (en) | 2018-12-28 | 2018-12-28 | Filter circuit, timer and cooking apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811620644.5A CN109524950A (en) | 2018-12-28 | 2018-12-28 | Filter circuit, timer and cooking apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109524950A true CN109524950A (en) | 2019-03-26 |
Family
ID=65797748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811620644.5A Pending CN109524950A (en) | 2018-12-28 | 2018-12-28 | Filter circuit, timer and cooking apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109524950A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130214705A1 (en) * | 2010-08-04 | 2013-08-22 | Sb Limotive Company Ltd | Method for Limiting a Switch-on Current in an Electrical System |
| CN204669213U (en) * | 2015-06-02 | 2015-09-23 | 广州市珠峰电气有限公司 | A kind of frequency converter charge protector |
| CN204794060U (en) * | 2015-06-24 | 2015-11-18 | 广州视源电子科技股份有限公司 | Surge current protection circuit and air conditioner supply circuit |
| CN208143117U (en) * | 2018-03-14 | 2018-11-23 | 浙江国自机器人技术有限公司 | A kind of start-up circuit of vehicle or complete machine |
-
2018
- 2018-12-28 CN CN201811620644.5A patent/CN109524950A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130214705A1 (en) * | 2010-08-04 | 2013-08-22 | Sb Limotive Company Ltd | Method for Limiting a Switch-on Current in an Electrical System |
| CN204669213U (en) * | 2015-06-02 | 2015-09-23 | 广州市珠峰电气有限公司 | A kind of frequency converter charge protector |
| CN204794060U (en) * | 2015-06-24 | 2015-11-18 | 广州视源电子科技股份有限公司 | Surge current protection circuit and air conditioner supply circuit |
| CN208143117U (en) * | 2018-03-14 | 2018-11-23 | 浙江国自机器人技术有限公司 | A kind of start-up circuit of vehicle or complete machine |
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Application publication date: 20190326 |