CN102315630B - Household cooking device - Google Patents
Household cooking device Download PDFInfo
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- CN102315630B CN102315630B CN201110178759.5A CN201110178759A CN102315630B CN 102315630 B CN102315630 B CN 102315630B CN 201110178759 A CN201110178759 A CN 201110178759A CN 102315630 B CN102315630 B CN 102315630B
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- surge
- surge protector
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Abstract
A kind of Household cooking device, wherein, the power input part (1) being connected with source power supply, the load circuit (4) of current fuse (2) and control cooking device is connected in series and constitutes Guan Bi circuit, the 1st device of surge protector (3a) that is connected in series and the 2nd device of surge protector (3b) are connected in parallel with the series circuit of power input part (1) and current fuse (2), the surge protection voltage of the 1st device of surge protector (3a) and the surge protection voltage of the 2nd device of surge protector (3b) be respectively from power input part (1) input usual time maximum voltage below.
Description
Technical field
The present invention relates in general family use Household cooking device, particularly relate to electric cooker for power surge
Carrying out surge protection structure.
Background technology
All the time, this carrying out surge protection structure for power surge is such as Japanese Unexamined Patent Publication 2004-320851 public affairs
It is configured to as report is described: the surge protective device that is referred to as spark gap or surge absorber is inserted into and sets
In standby power input part, make from power supply unit apply voltage surge or current surge temporary short circuit, thus, will not be right
It is connected to the circuit part after surge protective device and applies surge.
Fig. 6 shows existing carrying out surge protection structure.As shown in Figure 6, this carrying out surge protection structure is constituted by with lower part:
Power input part 11, current fuse 12, the device of surge protector 13 being made up of spark gap or surge absorber, with
And the load circuit 14 of the protection by device of surge protector 13.
But, in above-mentioned existing structure, when power input part 11 is applied with voltage surge or current surge,
Be make 1 device of surge protector 13 temporary short circuit load circuit 14 is not applied surge, so, when being applied with wave
When excessive surge voltage that surge protector part 13 cannot fully absorb or surge current, device of surge protector 13 is sometimes
Can break down with short-circuit condition.
In the case of device of surge protector 13 there occurs short trouble, become and the state of power supply short circuit, so,
When moment is flow through excessive short circuit current and exceedes the capacity cutoff of current fuse 12, along with violent sound
And cause current fuse 12 to damage.
Additionally, there is also following problem: the tie breaker being installed on home-use distribution board turns off and stops
Only for the power supply of the miscellaneous equipment being connected with this tie breaker.
Summary of the invention
In the Household cooking device of the present invention, the power input part that is connected with source power supply, cut when flowing through overcurrent
The current fuse of power-off stream and the load circuit being controlled cooking device are connected in series and constitute Guan Bi electricity
Road, the 1st device of surge protector being connected in series and the 2nd device of surge protector and power input part and current fuse
Series circuit is connected in parallel, and, the surge protection voltage V1 of the 1st device of surge protector and the 2nd Surge Protector
The surge protection voltage V2 of part be respectively from power input part input usual time maximum voltage below.
Thus, in the case of being applied with excessive surge voltage or surge current, though the 1st device of surge protector or
Some in 2nd device of surge protector first there occurs Damage by Short Circuit, also due to another device of surge protector is the shortest
Road, therefore, it is possible to prevent the generation of the excessive short circuit current that moment flows through.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the surge protection function part of the Household cooking device in embodiments of the present invention 1.
Fig. 2 is that the surge protection function part to the Household cooking device in embodiments of the present invention 1 is applied with wave
Gush action diagram during voltage.
Fig. 3 is the circuit diagram of the surge protection part of the Household cooking device in embodiments of the present invention 2.
Fig. 4 is the circuit diagram of the surge protection part of the Household cooking device in embodiments of the present invention 3.
Fig. 5 is the circuit diagram of the surge protection part of the Household cooking device in embodiments of the present invention 4.
Fig. 6 is the circuit diagram of the surge protection part of existing Household cooking device.
Symbol description
1 power input part
2 current fuses
3a the 1st device of surge protector
3b the 2nd device of surge protector
4 load circuits
5 voltage detection units
6 device of surge protector fault-signals
7 display units
8 auxiliary current fuses
Detailed description of the invention
Hereinafter, it is explained with reference to embodiments of the present invention.It should be noted that the present invention is not by this embodiment party
The restriction of formula.
(embodiment 1)
Fig. 1 shows the surge of the Household cooking device (especially electric cooker) in the 1st embodiment of the present invention
The circuit diagram of defencive function part.It addition, Fig. 2 is to the Household cooking device in the 1st embodiment of the present invention
Surge protection function part action diagram when being applied with surge voltage.
As it is shown in figure 1, connected by following sections in series and constitute Guan Bi circuit: power input part 1, its be connected
Household electricity supply socket on the chopper of distribution board connects, to equipment supplier's power supply；Overcurrent flows through equipment
Time the current fuse 2 cut off the electricity supply；And the load circuit 4 that equipment is controlled.It addition, be connected in series
Connecting of 1st device of surge protector 3a and the 2nd device of surge protector 3b and power input part 1 and current fuse 2
Circuit in parallel connects.
Further, the 1st device of surge protector 3a, the surge protection voltage of the 2nd device of surge protector 3b are respectively from electricity
Source input unit 1 input usual time maximum voltage below.
About Household cooking device configured as described above, use Fig. 1 and Fig. 2 that its action and effect are described.
It addition, in the present invention, when what is called is usual, when referring to not apply surge voltage.
The most in fig. 2, apply before surge voltage when generally working, utilize the 1st surge shown in Fig. 1 to protect
Aggregate value V3a+V3b of the surge protection voltage protecting device 3a and the 2nd device of surge protector 3b is protected.
Here, when the period shown in A is applied with excessive surge voltage in fig. 2, the 1st device of surge protector
A side in 3a or the 2nd device of surge protector 3b is first short-circuited damage.
After the damage that is short-circuited, become the state of 1 device of surge protector being only connected to the opposing party, and this 1
Individual device of surge protector protection voltage be set to from power input part 1 input usual time maximum voltage below,
So, even if also can gradually be damaged under the usual voltage that there is not surge voltage.
Now, the electric current flowed out from power input part 1 is pressed power input part 1 → current fuse the 2 → the 1st surge and is protected
Protect device 3a → the 2nd device of surge protector 3b → this mode of power input part 1 to flow.
Owing to not being short-circuited, the 1st device of surge protector 3a damaged or the 2nd device of surge protector 3b little by little damages,
The electric current flowing to current fuse 2 is also incrementally increased.
As it has been described above, in the present embodiment, as it is shown in figure 1,2 device of surge protector are connected in series, and
Respective surge protection voltage is set as from power input part 1 input usual time maximum voltage below, thus,
The short circuit current produced when device of surge protector can be made to be damaged increases lentamente.Therefore, it is possible at current fusing
Current fuse 2 it is assuredly shut off, it is possible to reduce sound when current fuse cuts off below the capacity cutoff of device 2.
Additionally it is possible to prevent the chopper that is connected with distribution board occur the situation turned off and stopped for this electricity
The situation of the power supply of the miscellaneous equipment that stream chopper connects.
Additionally, in the Household cooking device of above-mentioned embodiment, by the Surge Protector of surge protection function part
Part is set to 2, even if but more than 2 also be able to play same effect.
(embodiment 2)
Fig. 3 is the circuit diagram of the surge protection part of the Household cooking device in the 2nd embodiment of the present invention.Separately
Outward, it is labelled with same-sign for the structural element identical with embodiment 1.
As it is shown on figure 3, in the present embodiment, with the 1st device of surge protector 3a and the 2nd device of surge protector
3b is connected in series auxiliary current fuse 8.The current capacity of auxiliary current fuse 8 is set to be less than electric current and melts
The current capacity of disconnected device 2.
When being applied with excessive surge voltage, identical with the content described in embodiment 1, the 1st Surge Protector
Some damage that is short-circuited in part 3a and the 2nd device of surge protector 3b, electric current according to power input part 1 →
Current fuse the 2 → the 1st device of surge protector 3a → the 2nd device of surge protector 3b → auxiliary current fuse 8 → electricity
The mode of source input unit 1 flows.
Owing to the current capacity of current fuse 2 is not the most below the rated current of equipment, thus for Large Copacity
For equipment, current capacity must be increased.
On the other hand, the electricity that can flow through when being damaged according to the 1st device of surge protector and the 2nd device of surge protector
Stream determines the current capacity of auxiliary current fuse 8.
Therefore, it is possible to the rated current of equipment independently, set in the way of less than the rated capacity of current fuse 2
Determining the rated capacity of auxiliary current fuse 8, it is possible to when device of surge protector is damaged, being selected to safety can
The current capacity cut off is carried out by ground.
Thereby, it is possible to the rated current of equipment independently, cut off with less short circuit current, it is possible to further
Improve prevent distribution board chopper occur turn off situation and stopped for be connected with this tie breaker its
The effect of the situation of the power supply of its equipment.
(embodiment 3)
Fig. 4 is the circuit diagram of the surge protection part of the Household cooking device in the 3rd embodiment of the present invention.Separately
Outward, it is labelled with same-sign for the structural element identical with embodiment 1.
In the diagram, by the surge protection voltage V1 and the 2nd device of surge protector 3b of the 1st device of surge protector 3a
Surge protection voltage V2 be set to V1 ＜ V2, and be connected in parallel to voltage detecting with the 2nd device of surge protector 3b
Unit 5.
Voltage detection unit 5 the voltage detected higher than predetermined voltage time, to load circuit 4 give notice surge protect
Protecting the device of surge protector fault-signal 6 that device has broken down, load circuit 4 is in response to receiving Surge Protector
Part fault-signal 6 and the work of arrestment.
Time generally, voltage detection unit 5 is applied the voltage near supply voltage centre, near this supply voltage centre
Voltage obtained by the 1st device of surge protector 3a and the 2nd device of surge protector 3b dividing potential drop.
Here, by by the surge protection voltage V1 of the 1st device of surge protector 3a and the 2nd device of surge protector
Surge protection voltage V2 is set to V1 ＜ V2, thus, in the case of being applied with excessive surge voltage, and surge protection
The 1st device of surge protector 3a that voltage is low is first short-circuited damage.
When the 1st device of surge protector 3a there occurs Damage by Short Circuit, the supply voltage quilt that power input part 1 is applied
Be directly applied to voltage detection unit 5, by with centre time usual near voltage compare, it is possible to detect
The situation that 1st device of surge protector 3a is damaged.
Its information, when detecting that the 1st device of surge protector 3a there occurs Damage by Short Circuit, is made by voltage detection unit 5
Being sent to load circuit 4 for device of surge protector fault-signal 6, load circuit 4 is in response to receiving this surge protection
Device fault signal 6 and the work of arrestment.
By the work of arrestment, thus, although the 1st device of surge protector 3a be short-circuited damage, the 2nd
Device of surge protector 3b is short-circuited during this section before damaging and then being cut off until current fuse 2, wave
Gush protection temporarily abundant, but owing to stopped equipment in advance, even if thus be applied with surge voltage during this period,
It also is able to prevent the failure propagation of equipment.
Even it addition, connecting on the series circuit of the 1st device of surge protector 3a and the 2nd device of surge protector 3b
There is the structure of the auxiliary current fuse 8 shown in Fig. 3, it is also possible to obtain same effect.
(embodiment 4)
Fig. 5 is the circuit diagram of the surge protection part of the Household cooking device in the 4th embodiment of the present invention.Separately
Outward, it is labelled with same-sign for the structural element identical with embodiment 3.
Having the display unit 7 being connected with load circuit 4 in Figure 5, load circuit 4 is receiving Surge Protector
During part fault-signal 6, make the situation that display unit 7 display device breaks down.
Device fails is caused due to the damage of the 1st device of surge protector 3a by making display unit 7 show
Situation, thereby, it is possible to allow user easily grasp failure cause.
Thereby, it is possible to reply when a kind of reply when easily and quickly carrying out fault being provided and repairs, usability good
Good Household cooking device.
As it has been described above, in the Household cooking device of the present invention, the power input part that is connected with source power supply, flow through
The current fuse cutting off electric current during overcurrent and the load circuit being controlled equipment are connected in series and constitute and close
Close circuit, the 1st device of surge protector being connected in series and the 2nd device of surge protector and power input part and current fusing
The series circuit of device is connected in parallel, the surge protection voltage V1 of the 1st device of surge protector and the 2nd device of surge protector
Surge protection voltage V2 be respectively from power input part input usual time maximum voltage below.
The surge protection electricity of surge protection voltage V1 and the 2nd device of surge protector by making the 1st device of surge protector
Pressure V2 respectively become from power input part input usual time maximum voltage below, thus, to power input part
When being applied with excessive surge voltage or surge current, although in the 1st device of surge protector and the 2nd device of surge protector
Some damage that is first short-circuited, but owing to another device of surge protector is not short-circuited, it is thus possible to prevent wink
Between the generation of excessive short circuit current flow through.
Furthermore it is possible to prevent the damage generation of sound of current fuse, the chopper of home-use distribution board from turning off,
And stopped the situation of power supply for the miscellaneous equipment being connected with this tie breaker.
It addition, in the Household cooking device of the present invention, with the 1st device of surge protector and the 2nd being connected in series
Device of surge protector is connected in series auxiliary current fuse, and makes the rated capacity of current fuse become equipment
More than rated current, make the capacity of auxiliary current fuse less than current fuse.
Become more than equipment rated current by the rated capacity making current fuse, make the capacity of auxiliary current fuse
Less than current fuse, thereby, it is possible to the rated current of equipment independently, with the rated capacity than current fuse
Little mode selects the rated capacity of auxiliary current fuse.
Further, when device of surge protector produces short trouble, it is possible to be initially switched off the auxiliary current fuse that capacity is less,
Short circuit current when current fuse damages can be reduced further.
Furthermore it is possible to improve the damage generation of sound, the open circuit of home-use distribution board preventing current fuse further
Device turns off and stopped the effect of these situations of powering for the miscellaneous equipment being connected with this tie breaker
Really.
It addition, in the Household cooking device of the present invention, make the surge protection voltage V1 of the 1st device of surge protector
Become V1 ＜ V2 with the surge protection voltage V2 of above-mentioned 2nd device of surge protector, make voltage detection unit and the 2nd wave
Surge protector part is connected in parallel, and load circuit, when the voltage detected is higher than predetermined voltage, is sent out by voltage detection unit
The 1st device of surge protector of putting up a notice there occurs the device of surge protector fault-signal of damage, and load circuit is in response to reception
The work of arrestment to device of surge protector fault-signal.
Load circuit is in response to receiving the device of surge protector fault-signal and arrestment that voltage detection unit sends
Work, in the case of being applied with excessive surge, the 1st device of surge protector is first short-circuited damage.
Therefore, voltage detection unit being applied supply voltage itself, voltage detection unit sends device of surge protector fault
Signal there occurs the notice of damage as the 1st device of surge protector, and load circuit receives this signal and makes the work of equipment
Stop.
Thus, in the case of a device of surge protector there occurs that damage causes surge protection function not sufficiently,
Can the work of arrestment safely.
It addition, the Household cooking device of the present invention has the display unit being connected with load circuit, connect at load circuit
In the case of receiving device of surge protector fault-signal, make the fault of display unit display device.
The display unit being connected with load circuit by setting, it is possible to user notice due to the event of device of surge protector
Hinder and make equipment stop.
Claims (3)
1. a Household cooking device, wherein,
The power input part that is connected with source power supply, cut off the current fuse of electric current and to equipment when flowing through overcurrent
The load circuit being controlled is connected in series and constitutes Guan Bi circuit, the 1st device of surge protector being connected in series and
2 device of surge protector are connected in parallel with the series circuit of above-mentioned power input part and above-mentioned current fuse, and the above-mentioned 1st
The surge protection voltage V1 of device of surge protector and the surge protection voltage V2 of above-mentioned 2nd device of surge protector is respectively
For from above-mentioned power input part input usual time maximum voltage below,
It is connected in series auxiliary current fusing with the 1st device of surge protector being connected in series and the 2nd device of surge protector
Device, the rated capacity of above-mentioned current fuse is more than the rated current of equipment, the capacity of above-mentioned auxiliary current fuse
Capacity less than above-mentioned current fuse.
Household cooking device the most according to claim 1, wherein,
Make surge protection voltage V1 and the surge protection voltage of the 2nd device of surge protector of the 1st device of surge protector
V2 becomes V1 < V2, and is connected in parallel voltage detection unit, above-mentioned voltage with above-mentioned 2nd device of surge protector
Detector unit, when detected voltage is higher than predetermined voltage, is given notice above-mentioned 1st surge protection to load circuit
Device there occurs the device of surge protector fault-signal of fault, and above-mentioned load circuit is in response to receiving above-mentioned surge protection
Device fault signal and the work of arrestment.
Household cooking device the most according to claim 2, wherein,
This Household cooking device possesses the display unit being connected with load circuit, and above-mentioned load circuit is receiving surge
In the case of protection device fault-signal, above-mentioned display unit display device is made to there occurs the situation of fault.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-148724 | 2010-06-30 | ||
| JP2010148724A JP5445356B2 (en) | 2010-06-30 | 2010-06-30 | Household cooking equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102315630A CN102315630A (en) | 2012-01-11 |
| CN102315630B true CN102315630B (en) | 2016-10-12 |
Family
ID=45428534
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110178759.5A Active CN102315630B (en) | 2010-06-30 | 2011-06-29 | Household cooking device |
| CN2011202246440U Expired - Lifetime CN202207069U (en) | 2010-06-30 | 2011-06-29 | Household cooking equipment |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202246440U Expired - Lifetime CN202207069U (en) | 2010-06-30 | 2011-06-29 | Household cooking equipment |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5445356B2 (en) |
| CN (2) | CN102315630B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11010841B2 (en) | 2008-10-02 | 2021-05-18 | Ecoatm, Llc | Kiosk for recycling electronic devices |
| JP5445356B2 (en) * | 2010-06-30 | 2014-03-19 | パナソニック株式会社 | Household cooking equipment |
| US10445708B2 (en) * | 2014-10-03 | 2019-10-15 | Ecoatm, Llc | System for electrically testing mobile devices at a consumer-operated kiosk, and associated devices and methods |
| KR101626490B1 (en) | 2014-12-17 | 2016-06-01 | 엘지전자 주식회사 | Cooking appliance and Method for controling it |
| FR3105378A1 (en) * | 2019-12-18 | 2021-06-25 | Valeo Systemes Thermiques | Fluid heating device, in particular intended for a vehicle |
| US11922467B2 (en) | 2020-08-17 | 2024-03-05 | ecoATM, Inc. | Evaluating an electronic device using optical character recognition |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1151090A (en) * | 1995-11-17 | 1997-06-04 | 李长益 | Low-voltage distribution type lightning-protection module |
| CN2604019Y (en) * | 2003-02-21 | 2004-02-18 | 刘政坤 | Transient state attack voltage suppressor |
| CN201413370Y (en) * | 2009-06-26 | 2010-02-24 | 孙巍巍 | Detection device for surge protective device |
| CN202207069U (en) * | 2010-06-30 | 2012-05-02 | 松下电器产业株式会社 | Household cooking equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3954213B2 (en) * | 1998-08-26 | 2007-08-08 | 株式会社コトヴェール | Overvoltage protection circuit |
| JP2003009387A (en) * | 2001-06-18 | 2003-01-10 | Otowa Denki Kogyo Kk | Anti-element and anti-resistant protector |
| JP2004320851A (en) * | 2003-04-14 | 2004-11-11 | Chofu Seisakusho Co Ltd | Power unit |
| JP3812560B2 (en) * | 2003-09-22 | 2006-08-23 | 松下電器産業株式会社 | Overvoltage protection circuit |
| JP4158200B2 (en) * | 2004-03-02 | 2008-10-01 | 横河電機株式会社 | Power supply |
| JP5000546B2 (en) * | 2008-02-22 | 2012-08-15 | 音羽電機工業株式会社 | Surge absorber |
-
2010
- 2010-06-30 JP JP2010148724A patent/JP5445356B2/en active Active
-
2011
- 2011-06-29 CN CN201110178759.5A patent/CN102315630B/en active Active
- 2011-06-29 CN CN2011202246440U patent/CN202207069U/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1151090A (en) * | 1995-11-17 | 1997-06-04 | 李长益 | Low-voltage distribution type lightning-protection module |
| CN2604019Y (en) * | 2003-02-21 | 2004-02-18 | 刘政坤 | Transient state attack voltage suppressor |
| CN201413370Y (en) * | 2009-06-26 | 2010-02-24 | 孙巍巍 | Detection device for surge protective device |
| CN202207069U (en) * | 2010-06-30 | 2012-05-02 | 松下电器产业株式会社 | Household cooking equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN202207069U (en) | 2012-05-02 |
| JP5445356B2 (en) | 2014-03-19 |
| CN102315630A (en) | 2012-01-11 |
| JP2012016115A (en) | 2012-01-19 |
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Owner name: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LT Free format text: FORMER OWNER: MATSUSHITA ELECTRIC INDUSTRIAL CO, LTD. Effective date: 20150901 |
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