CN202523664U - Power supply safety device for microwave oven - Google Patents
Power supply safety device for microwave oven Download PDFInfo
- Publication number
- CN202523664U CN202523664U CN 201220142769 CN201220142769U CN202523664U CN 202523664 U CN202523664 U CN 202523664U CN 201220142769 CN201220142769 CN 201220142769 CN 201220142769 U CN201220142769 U CN 201220142769U CN 202523664 U CN202523664 U CN 202523664U
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- China
- Prior art keywords
- power supply
- sheet metal
- safety device
- stand
- supply safety
- 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.)
- Expired - Lifetime
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- 239000002184 metal Substances 0.000 claims abstract description 39
- 238000003466 welding Methods 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
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- Electric Ovens (AREA)
- Control Of High-Frequency Heating Circuits (AREA)
- Constitution Of High-Frequency Heating (AREA)
Abstract
Provided is a power supply safety device for a microwave oven, comprising a printed circuit board and two terminals installed upon the printed circuit board, wherein the two terminals are connected via a power supply safety apparatus, with an opening arranged between the two terminals. The power supply safety device is characterized by further comprising a stand-by power supply safety apparatus, wherein both the power supply safety apparatus and the stand-by power supply safety apparatus are sheet metal and directly fixed to the opening; two ends of the sheet metal of the power supply safety apparatus are respectively connected with the two terminals; and one end of the sheet metal of the stand-by power supply safety apparatus is connected with one terminal, with a gap being left between the other end of the sheet metal and the other terminal. By directly connecting the sheet metal to the terminals upon the printed circuit board, the power supply safety device of the utility model realizes the safety function. When the current in the power supply is too heavy, the sheet metal is burnt out, thereby protecting the major components of the microwave oven. In addition, the power supply safety device of the utility model is provided with a stand-by safety apparatus. When the sheet metal of the power supply safety apparatus is burnt out, the stand-by safety apparatus will be triggered, without directly switching the printed circuit board, thereby cutting the cost. Moreover, the sheet metal is low in cost and simple in structure.
Description
Technical field
The utility model relates to a kind of microwave oven component, specifically is a kind of power safety device of microwave oven.
Background technology
Power safety device is all arranged on the microwave oven, and it mainly comprises two clips 1, protective tube 2, circuit board 3, and is as shown in Figure 1.Wherein: two clips are generally metal material, are installed on the circuit board 3 and the terminal on the circuit board 3 contacts, and protective tube is positioned between two clips, plays the effect of connecting circuit plate two end terminals 5.Circuit board one end connects external power source, and an end connects the microwave oven main circuit.When circuit board is connected extraneous power supply, be in connected state, if the electric current of the protective tube of flowing through is excessive, then the wire in the protective tube will blow, and the main circuit of microwave oven breaks off, and microwave oven just quits work, and plays the effect of the main components and parts of protection microwave oven.But above-mentioned this safeties shortcoming is: the cost of clip is too high, and installation procedure is more, causes whole safeties cost too high.Therefore, be necessary to do further improvement.
The utility model content
The purpose of the utility model aims to provide a kind of power safety device of simple and reasonable, microwave oven that production cost is low, easy to process, to overcome weak point of the prior art.
Press the power safety device of a kind of microwave oven of this purpose design; Comprise printed circuit board (PCB) and be installed in two terminals on the printed circuit board (PCB); Connect through power safety device between the two-terminal and between two-terminal, be provided with opening; Its architectural feature is also to include the stand-by power supply safeties, and wherein power safety device and stand-by power supply safeties are sheet metal and directly are fixed on the opening, and the two ends of power safety device sheet metal are connected with two-terminal respectively; One end of stand-by power supply safeties sheet metal is connected with a terminal, and the other end and the another terminal of stand-by power supply safeties sheet metal leave the gap.
Said sheet metal and terminal welding are fixing, and are provided with the gap between the sheet metal.
Said sheet metal is strip, and its width is 1-2mm, and length is 5-12mm.
Said power safety device is one, and the stand-by power supply safeties are more than one.
Also replaceable one-tenth wire of said sheet metal or metallic rod.
The utility model through with sheet metal directly with printed circuit board (PCB) on terminal be connected, play the function of insurance, when the electric current in the power supply was big, sheet metal blew, and played the effect of protecting microwave oven main circuit device.Simultaneously, it has subsequent use safeties, when the power safety device sheet metal blows, starts subsequent use safeties, need not directly switch printed circuit board (PCB), practices thrift cost.And the cost of sheet metal is lower, simple in structure.
Description of drawings
Fig. 1 is the prior art constructions sketch map;
Fig. 2 is the structural representation of the utility model one embodiment;
Fig. 3 is the local structure for amplifying sketch map at A place among Fig. 2.
Among the figure: 1 is clip, and 2 is protective tube, and 3 is circuit board, and 4 is printed circuit board (PCB), and 5 is terminal, and 6 is sheet metal, and 7 is the gap.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Referring to Fig. 2-Fig. 3; A kind of power safety device of microwave oven; Comprise printed circuit board (PCB) 4 and be installed in two terminals 5 on the printed circuit board (PCB) 4, connect through power safety device between the two-terminal 5 and between two-terminal 5, be provided with opening, also include the stand-by power supply safeties; Wherein power safety device and stand-by power supply safeties are sheet metal 6 and directly are fixed on the opening, and the two ends of power safety device sheet metal 6 are connected with two-terminal 5 respectively; One end of stand-by power supply safeties sheet metal 6 is connected with a terminal 5, and the other end and the another terminal 5 of stand-by power supply safeties sheet metal 6 leave gap 7.Sheet metal 6 is fixing with terminal 5 welding, and is provided with the gap between the sheet metal 6.Sheet metal 6 is strip, and its width is 1-2mm, and length is 5-12mm.Power safety device is one, and the stand-by power supply safeties are one.
Above-mentioned sheet metal 6 can be selected corresponding suitable width and length according to the needs of reality, and also replaceable one-tenth wire or metallic rod are as long as satisfy the most basic safety requirements of product.
The operation principle of the utility model: when the electric current in the power supply was big, power safety device sheet metal 6 blew, and played the effect of protection microwave oven main circuit device; At this moment, the gap 7 between solder terminal 5 and the stand-by power supply safeties sheet metal 6 connects two-terminal 5 again, recovers the operate as normal of microwave oven circuit.
Claims (5)
1. the power safety device of a microwave oven; Comprise printed circuit board (PCB) (4) and be installed in two terminals (5) on the printed circuit board (PCB); Connect through power safety device between the two-terminal and between two-terminal, be provided with opening; It is characterized in that also including the stand-by power supply safeties, wherein power safety device and stand-by power supply safeties are sheet metal (6) and directly are fixed on the opening, and the two ends of power safety device sheet metal are connected with two-terminal (5) respectively; One end of stand-by power supply safeties sheet metal (6) is connected with a terminal, and the other end of stand-by power supply safeties sheet metal (6) and another terminal leave gap (7).
2. according to the power safety device of the said microwave oven of claim 1, it is characterized in that said sheet metal (6) is fixing with terminal (5) welding, and be provided with the gap between the sheet metal (6).
3. according to the power safety device of claim 1 or 2 said microwave ovens, it is characterized in that said sheet metal (6) is strip, its width is 1-2mm, and length is 5-12mm.
4. according to the power safety device of the said microwave oven of claim 3, it is characterized in that said power safety device is one, the stand-by power supply safeties are more than one.
5. according to the power safety device of claim 1 or 2 said microwave ovens, it is characterized in that also replaceable one-tenth wire of said sheet metal (6) or metallic rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220142769 CN202523664U (en) | 2012-04-05 | 2012-04-05 | Power supply safety device for microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220142769 CN202523664U (en) | 2012-04-05 | 2012-04-05 | Power supply safety device for microwave oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202523664U true CN202523664U (en) | 2012-11-07 |
Family
ID=47106599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220142769 Expired - Lifetime CN202523664U (en) | 2012-04-05 | 2012-04-05 | Power supply safety device for microwave oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202523664U (en) |
-
2012
- 2012-04-05 CN CN 201220142769 patent/CN202523664U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGDONG MIDEA KITCHEN APPLIANCE MANUFACTURING CO Free format text: FORMER NAME: GUANGDONG MIDEA MICROWAVE AND ELECTRICAL APPLIANCES MANUFACTURING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 528311 Yongan Road, Beijiao Town, Guangdong District, Foshan, No. 6, No. Patentee after: Guangdong Midea Kitchen Appliance Manufacturing Co., Ltd. Address before: 528311 Yongan Road, Beijiao Town, Guangdong District, Foshan, No. 6, No. Patentee before: Guangdong Midea Microwave Electrical Appliance Manufacturing Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121107 |
|
| CX01 | Expiry of patent term |