CN1218164A - High-voltage diode shield cover for use in microwave oven - Google Patents
High-voltage diode shield cover for use in microwave oven Download PDFInfo
- Publication number
- CN1218164A CN1218164A CN98104412A CN98104412A CN1218164A CN 1218164 A CN1218164 A CN 1218164A CN 98104412 A CN98104412 A CN 98104412A CN 98104412 A CN98104412 A CN 98104412A CN 1218164 A CN1218164 A CN 1218164A
- Authority
- CN
- China
- Prior art keywords
- voltage diode
- cover body
- microwave oven
- cover
- body element
- 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.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/66—Circuits
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Constitution Of High-Frequency Heating (AREA)
- Control Of High-Frequency Heating Circuits (AREA)
- Electric Ovens (AREA)
Abstract
The present invention discloses a high-voltage diode cover for a microwave oven; the cover is composed of a pair of cover elements, a flexible connection element, a hook protruding block and a locking element. The cover element is made of flame retardant raw material and a high-voltage diode is accommodated in it. The cover element is formed by cutting a hollow member into two members along the longitudinal direction. The hollow member has passages at its two ends and a connection wiring connected with the high-voltage diode can pass through the passages. Thereby the generation of fire due to the flying of the spark generated by a short circuit between a high-voltage diode and a connecting wiring about peripheral parts such as blower can be prevented.
Description
The present invention relates to microwave oven, more particularly, relate to the high-voltage diode shield cover that uses in the microwave oven, this cover is used to avoid because of the caused spark of short circuit between high-voltage diode and the connecting line peripheral element is burnt.
Usually, acting on high pressure on the high-voltage diode as one of magnetron driver unit element in the microwave oven.Fig. 1 shows the microwave oven that uses this high-voltage diode.
As shown in Figure 1, in such microwave oven, the magnetron driver unit generally includes high-tension transformer 14, high-voltage capacitor 15 and high-voltage diode 16.
High-tension transformer 14 produces the high pressure about 2200V, passes to magnetron 13 again after bringing up to about 4400V by high-voltage diode 16 and high-voltage capacitor 15 then.
High pressure thus, magnetron 13 sends high-frequency microwave, and then, microwave is mapped in the heating chamber in the micro-wave oven casing 10.
Not adding the reference number 11 of illustrating in Fig. 1 is a cover body, is used to cover the surface of housing 10, and reference number 12a and 12b are mounted in the door and the control panel in housing 10 fronts respectively, and reference number 18 is hair-dryers, is used for the cooling channel of thermal radiation element.
Therefore as mentioned above, acting on high pressure on the high-voltage diode 16,, then causing to the electric spark of circumferential component (as hair-dryer) and may cause catch fire (seeing Figure 1A) from diode 16 if short circuit occurs between high-voltage diode 16 and connecting line 16a, the 16b.
Therefore the engine casing (Eng Cas) 18a of hair-dryer 18 manufactures with fire-retardant polypropylene usually.
But this polypropylene flame redardant is very expensive, all uses this polypropylene flame redardant to make as the whole engine casing (Eng Cas) 18a of the very big hair-dryer 18 of fruit volume, just then the manufacturing cost of microwave oven can improve.
Purpose of the present invention promptly is to overcome the problems referred to above of the prior art; thereby purpose of the present invention thereby provide a kind of high-voltage diode shield cover that is used for microwave oven, thereby with the low-cost electric spark that can guard against the directive circumferential component that causes because of the short circuit between high-voltage diode and the connecting line.
To achieve these goals, the invention provides a kind of high-voltage diode shield cover that uses in microwave oven, this protective cover comprises: a pair of cover body element of manufacturing with fire proofing and make this two parts that the cover body element assembles mutually.Described cover body element holds parts by the diode that can hold described high-voltage diode in it respectively and is constituted, and forms by a hollow element axially is cut into two parts along it, and these hollow element two ends are useful on the passage that passes the connecting line that connects high-voltage diode.
According to a preferred embodiment of the present invention, above-mentioned assembly comprises: the flexible connecting member and that two ends are separately fixed on the above-mentioned cover body element is locked together in together parts with above-mentioned two cover body elements.
In addition, above-mentioned locking mechanism comprises that a hook-shaped projection and that is positioned at a cover body element outside is positioned at the closure on another cover body element, and the lockhole on this closure is used to insert hook-shaped projection.
Above-mentioned cover body element, flexible connecting member, hook-shaped projection and closure are preferably made integral body, and described fire proofing is fire-retardant polypropylene, and air vent hole is respectively arranged on the cover body element.
According to the following explanation of being done in conjunction with the accompanying drawings, the present invention may be better understood and purpose and advantage, and accompanying drawing comprises:
Fig. 1 is the decomposition diagram of general microwave oven;
Figure 1A is a circle part enlarged drawing among Fig. 1;
Fig. 2 is the perspective view of the high-voltage diode shield cover that uses in the microwave oven of the present invention;
Fig. 3 is the enlarged perspective that has adopted the microwave oven major part of high-voltage diode shield cover of the present invention;
Fig. 3 A is the enlarged drawing of circle part among Fig. 3.
Fig. 2 shows according to high-voltage diode shield cover of the present invention.As shown in Figure 2, high-voltage diode shield cover 100 of the present invention is made up of a pair of cover body element 110a, 110b.
Two cover body element 110a, 110b vertically are cut into 2 half with the hollow element that two ends have the connecting line that links to each other with described high-voltage diode to pass passage along it to form.Corresponding cover body element 110a, 110b are formed by diode accommodation section 112a, 112b respectively, are used to hold high-voltage diode 16 in it.
There are path 114a, 114b, 114c and 114d in the two ends of cover body element 110a, 110b, and the connecting line 16a, the 16b that are connected with high-voltage diode 16 can therefrom be passed.
There are hook- shaped projection 130a, 130b in the outside of one cover body element 110a, and there is closure 134 in the outside of another cover body element 110b, and the locking holes 132a on it, 132b are respectively applied for and insert hook- shaped projection 130a, 130b.
In Fig. 2, reference number 140a, the 140b of not specified (NS), and 140c be used for the air vent hole that the width of cloth is penetrated the heat that is produced by high-voltage diode 16, high-voltage diode is a thermal radiation element.
As shown in Figure 2, according to the high-voltage diode shield cover 100 with this constituted mode, high-voltage diode 16 is placed among diode accommodation section 112a, the 112b.
Like this, when hook- shaped projection 130a, 130b and closure 134 assemblings, high-voltage diode 16 is protected by cover body element 110a, 110b.High-voltage diode 16 promptly is assembled together with this mode and protective cover 100.
Fig. 3 illustrates the situation of utilizing high-voltage diode shield cover 100 in the microwave oven.Figure mesohigh diode 16 usefulness are protected by the protective cover 100 of fire proofing manufacturing.Therefore, though because the short circuit meeting between high-voltage diode 16 and connecting line 16a, the 16b causes electric spark, spark is kept apart (seeing Fig. 3 A) through protective cover 100 and the circumferential component as hair-dryer.
So, for the very big hair-dryer 18 of volume, there is no need as in common microwave stove, to use expensive anti-flaming polypropylene manufacturing, thereby reduced the manufacturing cost of microwave oven.
Though the present invention has done detailed description, should be understood that obviously this is an example, can not be as restrictive condition, essence of the present invention and scope can only be limited by the clause in the appended claims.
Claims (6)
1. microwave oven high-voltage diode shield cover comprises:
The cover body element that a pair of fire proofing is done, holding parts with the diode that is used to hold described high-voltage diode in it constitutes, above-mentioned cover body element is to be that hollow parts vertically are cut into two along it and form substantially with one, two ends of this hollow component have passage, wherein can pass the connecting line that links to each other with high-voltage diode; And
One with the interconnective parts of above-mentioned two cover body elements.
2. microwave oven high-voltage diode shield cover according to claim 1, wherein said link comprises:
One flexible connecting member, its both sides are respectively fixed on the above-mentioned two cover body elements; And
One makes two cover body elements sealed parts mutually.
3. as microwave oven high-voltage diode shield cover as described in the claim 2, wherein said locking member comprises:
One hook-shaped projection is positioned at the outside of a cover body element;
One closure is positioned on another cover body element and lockhole is arranged, and finishes the cover body assembling by hook-shaped projection being inserted lockhole.
4. as microwave oven high-voltage diode shield cover as described in the claim 3, wherein, described cover body element, flexible connecting member, hook-shaped projection and closure are made of one.
5. microwave oven high-voltage diode shield cover according to claim 1, wherein said flame-retardant materials is a polypropylene flame redardant.
6. microwave oven high-voltage diode shield cover according to claim 1 has air vent hole respectively on the wherein said cover body element.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR62187/97 | 1997-11-22 | ||
| KR1019970062187A KR19990041575A (en) | 1997-11-22 | 1997-11-22 | Safety cover for high voltage diode of microwave oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1218164A true CN1218164A (en) | 1999-06-02 |
Family
ID=19525374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98104412A Pending CN1218164A (en) | 1997-11-22 | 1998-02-10 | High-voltage diode shield cover for use in microwave oven |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH11176567A (en) |
| KR (1) | KR19990041575A (en) |
| CN (1) | CN1218164A (en) |
| GB (1) | GB2331623A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300453A (en) * | 2013-07-16 | 2015-01-21 | 珠海格力电器股份有限公司 | Fire-proof structure for cable at inflammable, and electrical device comprising fire-proof structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62150901A (en) * | 1985-12-24 | 1987-07-04 | Murata Mfg Co Ltd | Cover fitting structure for outer case of dielectric coaxial resonator |
| DE3834626A1 (en) * | 1988-10-11 | 1990-04-12 | Hans Simon | MAINS CONNECTION BOX |
-
1997
- 1997-11-22 KR KR1019970062187A patent/KR19990041575A/en active IP Right Grant
-
1998
- 1998-02-06 JP JP10026169A patent/JPH11176567A/en active Pending
- 1998-02-09 GB GB9802739A patent/GB2331623A/en not_active Withdrawn
- 1998-02-10 CN CN98104412A patent/CN1218164A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300453A (en) * | 2013-07-16 | 2015-01-21 | 珠海格力电器股份有限公司 | Fire-proof structure for cable at inflammable, and electrical device comprising fire-proof structure |
Also Published As
| Publication number | Publication date |
|---|---|
| KR19990041575A (en) | 1999-06-15 |
| JPH11176567A (en) | 1999-07-02 |
| GB2331623A (en) | 1999-05-26 |
| GB9802739D0 (en) | 1998-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0976975B1 (en) | Cooling device for halogen lamps in microwave ovens | |
| CN101308618A (en) | Chassis base assembly and display device including the same | |
| CN1218164A (en) | High-voltage diode shield cover for use in microwave oven | |
| CN1137347C (en) | Microwave oven | |
| CA1202374A (en) | High-frequency heating device | |
| CN1190718A (en) | Microwave oven | |
| CN1089420C (en) | Device for preventing heat damage of electric power cord for microwave oven | |
| CN1230663A (en) | Microwave oven having guide member for discharging gas | |
| KR20020014968A (en) | Microwave oven | |
| KR100306628B1 (en) | Microwave oven | |
| KR100200799B1 (en) | Microwave oven | |
| KR100756480B1 (en) | Fire prevention structure of control box for air conditioner | |
| CN1833738A (en) | Method of preventing flame fleeing by using ventilation board and ventilation board | |
| KR19980074670A (en) | Terminal connection structure | |
| US20240077209A1 (en) | Cooking appliance | |
| KR100260723B1 (en) | Microwave oven | |
| US20240151385A1 (en) | Cooking appliance light | |
| JP2001298294A (en) | Shield structure of electronic unit | |
| KR200229355Y1 (en) | A power cord mounting structure for micro wave oven | |
| KR100995185B1 (en) | A microwave oven | |
| KR200184321Y1 (en) | Waveguide for microwave oven | |
| KR100233430B1 (en) | Preliminary assembly apparatus of outer case of microwave oven | |
| CN1459590A (en) | Microwave oven and making method thereof | |
| KR100255195B1 (en) | Microwave oven | |
| KR200226753Y1 (en) | Ventilating structure of gas for ventilation hooded microwave oven |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |