CN202207069U - Household cooking equipment - Google Patents
Household cooking equipment Download PDFInfo
- Publication number
- CN202207069U CN202207069U CN2011202246440U CN201120224644U CN202207069U CN 202207069 U CN202207069 U CN 202207069U CN 2011202246440 U CN2011202246440 U CN 2011202246440U CN 201120224644 U CN201120224644 U CN 201120224644U CN 202207069 U CN202207069 U CN 202207069U
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- surge protector
- surge
- mentioned
- voltage
- current fuse
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Abstract
Disclosed is household cooking equipment. A power input portion (1) connected with a commercial power source, a power fuse (2) and a load circuit (4) for controlling the cooking equipment are serially connected to form a closed circuit, a first surge protecting device (3a) and a second surge protecting device (3b) which are serially connected are parallelly connected with a series connection circuit of the power input portion (1) and the current fuse (2), and surge protecting voltage of the first surge protecting device (3a) and surge protecting voltage of the second surge protecting device (3b) respectively are lower than the largest voltage generally inputted from the power input portion (1).
Description
Technical field
The utility model relates to the home-use cooking device that uses in the general family, relates in particular to the surge safeguard structure to power surge of electric cooker.
Background technology
All the time; This surge safeguard structure to power surge for example constitutes as TOHKEMY 2004-320851 communique is put down in writing: a surge protective device that is called as arrester or surge absorber is inserted in the power input part of equipment; Make the voltage surge or the temporary transient short circuit of current surge that apply from power supply unit; Thus, can not apply surge to being connected surge protective device circuit part afterwards.
Fig. 6 shows existing surge safeguard structure.As shown in Figure 6, this surge safeguard structure is by constituting with the lower part: the load circuit 14 of power input part 11, current fuse 12, the device of surge protector 13 that is made up of arrester or surge absorber and the protection that receives device of surge protector 13.
Yet; In above-mentioned existing structure; When power input part 11 has been applied voltage surge or current surge, be to make the 13 temporary transient short circuits of 1 device of surge protector load circuit 14 not being applied surge, so; When having applied excessive surge voltage that device of surge protector 13 can't absorb fully or surge current, device of surge protector 13 breaks down with short-circuit condition sometimes.
Taken place at device of surge protector 13 under the situation of short trouble; Become state with the power supply short circuit; So, surpass when the excessive short circuit current of transient flow current fuse 12 when capacity, be accompanied by violent sound and cause current fuse 12 to damage.
In addition, also there is following problem: be installed on tie breaker on the home-use distribution board and turn-off and stop power supply to the miscellaneous equipment that is connected with this tie breaker.
The utility model content
In the home-use cooking device of the utility model; The power input part that is connected with source power supply, cut off the current fuse of electric current when flowing through overcurrent and the load circuit that cooking device is controlled is connected in series and has constituted closed circuit; The series circuit of the 1st device of surge protector that is connected in series and the 2nd device of surge protector and power input part and current fuse is connected in parallel; And, below the maximum voltage when the surge protection voltage V2 of the surge protection voltage V1 of the 1st device of surge protector and the 2nd device of surge protector is respectively from power input part input common.
Thus; Under the situation that has applied excessive surge voltage or surge current; Even the short circuit damage has taken place in the some elder generations in the 1st device of surge protector or the 2nd device of surge protector; Also because therefore the not short circuit of another device of surge protector can prevent the generation of the excessive short circuit current that transient flow is crossed.
Description of drawings
Fig. 1 is the circuit diagram of the surge protection funtion part of the home-use cooking device in the embodiment 1 of the utility model.
Fig. 2 is the action diagram of the surge protection funtion part to the home-use cooking device in the embodiment 1 of the utility model when having applied surge voltage.
Fig. 3 is the circuit diagram of the surge protection part of the home-use cooking device in the embodiment 2 of the utility model.
Fig. 4 is the circuit diagram of the surge protection part of the home-use cooking device in the embodiment 3 of the utility model.
Fig. 5 is the circuit diagram of the surge protection part of the home-use cooking device in the embodiment 4 of the utility model.
Fig. 6 is the circuit diagram of the surge protection part of existing home-use 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
The specific embodiment
Below, the embodiment of the utility model is described with reference to accompanying drawing.Need to prove that the utility model does not receive the qualification of this embodiment.
(embodiment 1)
Fig. 1 shows the circuit diagram of the surge protection funtion part of the home-use cooking device (especially electric cooker) in the 1st embodiment of the utility model.In addition, Fig. 2 is surge protection funtion part to the home-use cooking device in the 1st embodiment of the utility model action diagram when having applied surge voltage.
As shown in Figure 1, by being connected in series with the lower part and having constituted closed circuit: power input part 1, it is connected with household electricity supply socket on the breaker that is connected distribution board, and the equipment supplier is used power supply; The current fuse 2 of cutting off the electricity supply when overcurrent flows through equipment; And the load circuit 4 that equipment is controlled.The series circuit of the 1st device of surge protector 3a that is connected in series in addition, and the 2nd device of surge protector 3b and power input part 1 and current fuse 2 is connected in parallel.
And, below the maximum voltage when the surge protection voltage of the 1st device of surge protector 3a, the 2nd device of surge protector 3b is respectively from power input part 1 input common.
About the home-use cooking device that constitutes as stated, use Fig. 1 and Fig. 2 that its action and effect are described.In addition, in the utility model, when what is called is common, be meant when not applying surge voltage.
At first in Fig. 2, during common work before applying surge voltage, utilize the aggregate value V3a+V3b of the surge protection voltage of the 1st device of surge protector 3a shown in Figure 1 and the 2nd device of surge protector 3b to protect.
Here, when in Fig. 2 shown in the A during when having applied excessive surge voltage, the damage that is short-circuited earlier of the side among the 1st device of surge protector 3a or the 2nd device of surge protector 3b.
After the damage that is short-circuited; Become the state of 1 device of surge protector that is only connecting the opposing party; And below the maximum voltage of the protection voltage of this 1 device of surge protector when being set to from power input part 1 input common; So, even also can be damaged gradually not existing under the common voltage of surge voltage.
At this moment, the electric current that flows out from power input part 1 is pressed power input part 1 → current fuse 2 → the 1st device of surge protector 3a → the 2nd device of surge protector 3b → power input part 1 this mode and is flowed.
The 1st device of surge protector 3a or the 2nd device of surge protector 3b that damage owing to be not short-circuited little by little damage, and the electric current that flows to current fuse 2 also little by little increases.
As stated; In this embodiment; As shown in Figure 1,2 device of surge protector are connected in series, and below the maximum voltage of surge protection voltage that will be separately when being set at from power input part 1 input common; Thus, the short circuit current that produces in the time of device of surge protector being damaged increases lentamente.Therefore, can cut off current fuse 2 below the capacity reliably in ending of current fuse 2, the sound in the time of can reducing the current fuse cut-out.
In addition, can also prevent that the breaker that is connected with distribution board from the situation of turn-offing taking place and stopped the situation to the power supply of the miscellaneous equipment that is connected with this tie breaker.
In addition, in the home-use cooking device of above-mentioned embodiment, the device of surge protector of surge protection funtion part is made as 2, even if but also can play same effect more than 2.
(embodiment 2)
Fig. 3 is the circuit diagram of the surge protection part of the home-use cooking device in the 2nd embodiment of the utility model.In addition, to having marked same-sign with embodiment 1 identical structural element.
As shown in Figure 3, in this embodiment, with the 1st device of surge protector 3a and the 2nd device of surge protector 3b auxiliary current fuse 8 that is being connected in series.The current capacity of auxiliary current fuse 8 is set to the current capacity less than current fuse 2.
When having applied excessive surge voltage; The content of being put down in writing with embodiment 1 is identical; Some damages that is short-circuited among the 1st device of surge protector 3a and the 2nd device of surge protector 3b, electric current flows according to the mode of power input part 1 → current fuse 2 → the 1st device of surge protector 3a → the 2nd device of surge protector 3b → auxiliary current fuse 8 → power input part 1.
Because the current capacity of current fuse 2 is original with regard to not below the rated current of equipment, thereby for large capacity equipment, must increase current capacity.
On the other hand, the electric current that flows through in the time of can being damaged according to the 1st device of surge protector and the 2nd device of surge protector decides the current capacity of auxiliary current fuse 8.
Therefore; Can with the rated current of equipment irrespectively; To set the rated capacity of auxiliary current fuse 8 less than the mode of the rated capacity of current fuse 2, can be when device of surge protector be damaged, the current capacity that selection can be cut off safely and reliably.
Thus; Can with the rated current of equipment irrespectively; Short circuit current with less cuts off, and can further improve the situation that the breaker that prevents distribution board take place to turn-off and stop the effect to the situation of the power supply of the miscellaneous equipment that is connected with this tie breaker.
(embodiment 3)
Fig. 4 is the circuit diagram of the surge protection part of the home-use cooking device in the 3rd embodiment of the utility model.In addition, to having marked same-sign with embodiment 1 identical structural element.
In Fig. 4, the surge protection voltage V1 of the 1st device of surge protector 3a and the surge protection voltage V2 of the 2nd device of surge protector 3b are made as V1＜V2, and are connected in parallel to voltage detection unit 5 with the 2nd device of surge protector 3b.
When voltage detection unit 5 is higher than predetermined voltage at detected voltage; To the load circuit 4 device of surge protector fault-signal 6 that device of surge protector broken down of giving notice, load circuit 4 work of arrestment in response to receiving device of surge protector fault-signal 6.
Usually the time, voltage detection unit 5 is applied near the middle voltage of supply voltage, near voltage in the middle of this supply voltage is obtained by the 1st device of surge protector 3a and the 2nd device of surge protector 3b dividing potential drop.
Here; Through the surge protection voltage V1 of the 1st device of surge protector 3a and the surge protection voltage V2 of the 2nd device of surge protector are made as V1＜V2; Thus, under the situation that has applied excessive surge voltage, the 1st device of surge protector 3a that surge protection voltage the is low damage that is short-circuited earlier.
When the short circuit damage has taken place in the 1st device of surge protector 3a; The supply voltage that power input part 1 is applied is directly imposed on voltage detection unit 5; Near through the centre when common voltage compares, and can detect the situation that the 1st device of surge protector 3a is damaged.
Work through arrestment; Thus; Though the 1st device of surge protector 3a be short-circuited damage, the 2nd device of surge protector 3b be short-circuited damage so that this section up to current fuse 2 is cut off before during, surge protection is temporarily abundant inadequately, owing to having stopped equipment in advance; Even thereby applied surge voltage during this period, can prevent that also the fault of equipment from enlarging.
In addition, even on the series circuit of the 1st device of surge protector 3a and the 2nd device of surge protector 3b, be connected with the structure of auxiliary current fuse 8 shown in Figure 3, also can access same effect.
(embodiment 4)
Fig. 5 is the circuit diagram of the surge protection part of the home-use cooking device in the 4th embodiment of the utility model.In addition, to having marked same-sign with embodiment 3 identical structural elements.
In Fig. 5, have the display unit 7 that is connected with load circuit 4, load circuit 4 when receiving device of surge protector fault-signal 6, the situation that display unit 7 display devices are broken down.
Through display unit 7 is shown because the damage of the 1st device of surge protector 3a causes the situation of device fails, thus, can let the user easily grasp failure cause.
Thus, a kind of reply and home-use cooking device reply, that usability is good when repairing when easily promptly carrying out fault can be provided.
As stated; In the home-use cooking device of the utility model; The power input part that is connected with source power supply, cut off the current fuse of electric current when flowing through overcurrent and the load circuit that equipment is controlled is connected in series and constitutes closed circuit; The series circuit of the 1st device of surge protector that is connected in series and the 2nd device of surge protector and power input part and current fuse is connected in parallel, below the maximum voltage when the surge protection voltage V2 of the surge protection voltage V1 of the 1st device of surge protector and the 2nd device of surge protector is respectively from power input part input common.
Below the maximum voltage when surge protection voltage V1 through making the 1st device of surge protector and the surge protection voltage V2 of the 2nd device of surge protector become from power input part input common respectively; Thus; When power input part has been applied excessive surge voltage or surge current; Though the some damages that is short-circuited earlier in the 1st device of surge protector and the 2nd device of surge protector; But, thereby can prevent the generation of the excessive short circuit current that transient flow is crossed owing to another device of surge protector is not short-circuited.
The breaker that in addition, can prevent the generation of the damage sound of current fuse, home-use distribution board turn-offs and has stopped the situation to the power supply of the miscellaneous equipment that is connected with this tie breaker.
In addition; In the home-use cooking device of the utility model; With the 1st device of surge protector that is connected in series and the 2nd device of surge protector auxiliary current fuse that is being connected in series; And the rated capacity that makes current fuse becomes more than the rated current of equipment, and the capacity that makes the auxiliary current fuse is less than current fuse.
Through the rated capacity that makes current fuse become more than the equipment rated current, the capacity that makes the auxiliary current fuse is less than current fuse; Thus; Can with the rated current of equipment irrespectively, select the rated capacity of auxiliary current fuse with the mode littler than the rated capacity of current fuse.
And, when device of surge protector produces short trouble, can the littler auxiliary current fuse of first rupturing capacity, the short circuit current in the time of can further reducing current fuse and damage.
The breaker that in addition, can further improve the generation of the damage sound that prevents current fuse, home-use distribution board turn-offs and has stopped the effect to these situations of power supply of the miscellaneous equipment that is connected with this tie breaker.
In addition; In the home-use cooking device of the utility model; Make the surge protection voltage V1 of the 1st device of surge protector and the surge protection voltage V2 of above-mentioned the 2nd device of surge protector become V1＜V2; Voltage detection unit and the 2nd device of surge protector are connected in parallel; When voltage detection unit is higher than predetermined voltage at detected voltage, the device of surge protector fault-signal that damages, load circuit work of arrestment in response to receiving the device of surge protector fault-signal have been taken place in load circuit the 1st device of surge protector of giving notice.
Load circuit is in response to receiving device of surge protector fault-signal that voltage detection unit sends and the work of arrestment, under the situation that has applied excessive surge, and the damage that is short-circuited earlier of the 1st device of surge protector.
Therefore, voltage detection unit is applied supply voltage itself, voltage detection unit sends the device of surge protector fault-signal and as the 1st device of surge protector the notice of damaging has taken place, and load circuit receives this signal and the work of equipment is stopped.
Thus, damage has taken place and caused under the sufficient inadequately situation of surge protection function the work of arrestment safely at a device of surge protector.
In addition, the home-use cooking device of the utility model has the display unit that is connected with load circuit, receives at load circuit under the situation of device of surge protector fault-signal, makes the fault of display unit display device.
Through the display unit that is connected with load circuit is set, can notify fault that equipment is stopped to the user owing to device of surge protector.
Claims (4)
1. a home-use cooking device is characterized in that,
The power input part that is connected with source power supply, cut off the current fuse of electric current when flowing through overcurrent and the load circuit that equipment is controlled is connected in series and has constituted closed circuit; The series circuit of the 1st device of surge protector that is connected in series and the 2nd device of surge protector and above-mentioned power input part and above-mentioned current fuse is connected in parallel, below the maximum voltage when the surge protection voltage V2 of the surge protection voltage V1 of above-mentioned the 1st device of surge protector and above-mentioned the 2nd device of surge protector is respectively from above-mentioned power input part input common.
2. home-use cooking device according to claim 1 is characterized in that,
With the 1st device of surge protector that is connected in series and the 2nd device of surge protector auxiliary current fuse that is being connected in series; The rated capacity of above-mentioned current fuse is more than the rated current of equipment, and the capacity of above-mentioned auxiliary current fuse is less than the capacity of above-mentioned current fuse.
3. home-use cooking device according to claim 1 and 2 is characterized in that,
Make the surge protection voltage V1 of the 1st device of surge protector and the surge protection voltage V2 of the 2nd device of surge protector become V1＜V2; And with above-mentioned the 2nd device of surge protector voltage detection unit that is being connected in parallel; When above-mentioned voltage detection unit is higher than predetermined voltage at detected voltage; The device of surge protector fault-signal of fault, the work of arrestment in response to receiving above-mentioned device of surge protector fault-signal of above-mentioned load circuit have taken place to load circuit above-mentioned the 1st device of surge protector of giving notice.
4. home-use cooking device according to claim 3 is characterized in that,
This home-use cooking device possesses the display unit that is connected with load circuit, and above-mentioned load circuit makes above-mentioned display unit display device that the situation of fault take place under the situation that receives the device of surge protector fault-signal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010148724A JP5445356B2 (en) | 2010-06-30 | 2010-06-30 | Household cooking equipment |
| JP2010-148724 | 2010-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202207069U true CN202207069U (en) | 2012-05-02 |
Family
ID=45428534
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202246440U Expired - Lifetime CN202207069U (en) | 2010-06-30 | 2011-06-29 | Household cooking equipment |
| CN201110178759.5A Active CN102315630B (en) | 2010-06-30 | 2011-06-29 | Household cooking device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110178759.5A Active CN102315630B (en) | 2010-06-30 | 2011-06-29 | Household cooking device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5445356B2 (en) |
| CN (2) | CN202207069U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102315630A (en) * | 2010-06-30 | 2012-01-11 | 松下电器产业株式会社 | Home-use cooking device |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11010841B2 (en) | 2008-10-02 | 2021-05-18 | Ecoatm, Llc | Kiosk for recycling electronic devices |
| 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 |
| US11080672B2 (en) | 2014-12-12 | 2021-08-03 | Ecoatm, Llc | Systems and methods for recycling consumer electronic devices |
| KR101626490B1 (en) | 2014-12-17 | 2016-06-01 | 엘지전자 주식회사 | Cooking appliance and Method for controling it |
| EP3884475A1 (en) | 2018-12-19 | 2021-09-29 | ecoATM, LLC | Systems and methods for vending and/or purchasing mobile phones and other electronic devices |
| 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 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043499C (en) * | 1995-11-17 | 1999-05-26 | 李长益 | Low-voltage distribution type lightning-protection module |
| 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 |
| CN2604019Y (en) * | 2003-02-21 | 2004-02-18 | 刘政坤 | Transient state attack voltage suppressor |
| 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 |
| CN201413370Y (en) * | 2009-06-26 | 2010-02-24 | 孙巍巍 | Detection device for surge protective device |
| JP5445356B2 (en) * | 2010-06-30 | 2014-03-19 | パナソニック株式会社 | Household cooking equipment |
-
2010
- 2010-06-30 JP JP2010148724A patent/JP5445356B2/en active Active
-
2011
- 2011-06-29 CN CN2011202246440U patent/CN202207069U/en not_active Expired - Lifetime
- 2011-06-29 CN CN201110178759.5A patent/CN102315630B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102315630A (en) * | 2010-06-30 | 2012-01-11 | 松下电器产业株式会社 | Home-use cooking device |
| CN102315630B (en) * | 2010-06-30 | 2016-10-12 | 松下知识产权经营株式会社 | Household cooking device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012016115A (en) | 2012-01-19 |
| JP5445356B2 (en) | 2014-03-19 |
| CN102315630A (en) | 2012-01-11 |
| CN102315630B (en) | 2016-10-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120502 Effective date of abandoning: 20161012 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |