CN101230999B - Switching device of microwave oven door - Google Patents
Switching device of microwave oven door Download PDFInfo
- Publication number
- CN101230999B CN101230999B CN200710056600XA CN200710056600A CN101230999B CN 101230999 B CN101230999 B CN 101230999B CN 200710056600X A CN200710056600X A CN 200710056600XA CN 200710056600 A CN200710056600 A CN 200710056600A CN 101230999 B CN101230999 B CN 101230999B
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- switch
- bolt
- bolt plate
- door
- latch hole
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Abstract
The invention relates to a microwave oven, in particular to a microwave oven gate switchgear which utilizes magnetic sheets and a latch to control the switching of the microwave oven and the oven gate. The invention solves the problems of the prior microwave oven gate switchgear that the structure is complicated, much material is consumed, the processing is frequent, and the cost is high. The switchgear comprises a shell, an oven cavity, an oven gate, an electric room and a control board, wherein, the shell forms the exterior of the microwave oven, and contains the component thereof, the oven cavity is arranged at the inner-left side of the shell, and is used for cooking food, the oven gate is hinged at the front of the oven cavity, the electric room is arranged at the right side of the oven cavity, and the control board is fixed at the front of the electric room. The invention is characterized in that the switchgear also comprises a latch, a latch board, a latch hole, a monitor switch, a transformer primary switch, a transformer secondary switch, and magnetic sheets, wherein, the latch is fixed at the middle part of the inner side of the front end of the oven gate frame, the latch board is fixed at the left side of the control board posterior surface of the oven cavity of the microwave oven, the latch hole is arranged at the middle part of the latch board in a way of corresponding to the latch, the monitor switch, the transformer primary switch and the transformer secondary switch are fixed on the latch board, and the magnetic sheets are adhered to the four corners of the inner side surface of the oven gate frame. The invention has the advantages that the processing is simplified, the components are less, the cost is reduced, and the product competitiveness is strengthened.
Description
Technical field
The present invention relates to micro-wave oven, specifically is a kind of switching device of microwave oven door that utilizes magnet and bolt to control micro-wave oven and stove door switch.
Background technology
Generally, micro-wave oven is at magnetron generation microwave behind the power connection and the device of these microwave irradiations cooking food on heating objects such as food.Such micro-wave oven can be divided into the home-use micro-wave oven that is equipped with small-sized magnetron and use micro-wave oven with outfit commerce large-scale or a plurality of magnetrons.
Micro-wave oven can also be divided into home-use micro-wave oven according to the mode of heat food, its general even mode of heating of glass rotating disk that adopts rotation to fill food, the commercial radiation modality that mainly adopts the scattering microwave with micro-wave oven.Commercial mainly be applicable to the convenience store that utilization rate is high and the food supply retail shop of cooking food at short notice, so generally need more home-use micro-wave oven have high relatively output with micro-wave oven.
Shown in Fig. 1-4, general micro-wave oven includes and forms the housing that outward appearance is held parts; Be arranged at the furnace chamber 6 in housing left side; Be arranged at the electric apparatus room 7 on furnace chamber 6 right sides; Be arranged on the fire door 5 of furnace chamber 6 fronts.
Housing forms the micro-wave oven outward appearance, also plays the effect of the inner furnace chamber 6 of protection simultaneously, so housing generally will be made with the steel plate with certain intensity.Housing includes: the rear board 4 that covers top panel 1, the base plate 3 below the protection, the front panel 2 that forms furnace chamber 6 fronts and protection furnace chamber 6 back sides of the top and two sides of furnace chamber 6 simultaneously.
Be provided with control panel 8 in the front of electric apparatus room 7.Be provided with bolt plate 15 in left side, the back of control panel 8, glass rotating disk 12 arranged, be provided with gate stop 16 and following gate stop 17 at the anterior upper and lower end of the medial surface of fire door 5 in the set inside of furnace chamber 6.As Fig. 3, shown in, bolt plate 15 comprises overhead gage 21 and lower baffle plate 22, and micro-wave oven transformer secondary switch 23, micro-wave oven pilot switch 24 and primary switch 25.
But switching device of microwave oven door complex structure, the materials of prior art are many as stated, processing is numerous, cost is high, exist big switch door noise and door for microwave oven and switch pressing bad phenomenon and outward appearance not novel.
Summary of the invention
The present invention proposes in order to solve the problem that prior art exists, its objective is for provide a kind of simple in structure, materials are few, cost is low, and the novel switching device of microwave oven door of outward appearance.Technical scheme of the present invention includes: form the micro-wave oven appearance, hold the housing of its parts; Be arranged at the furnace chamber of left side, cooking food in the housing; Be connected in the fire door of furnace chamber front with hinge; Be arranged at the electric apparatus room on furnace chamber right side; Be fixed in the control panel of electric apparatus room front; It is characterized in that: also include the bolt that is fixed in furnace door frame front end medial surface middle part; Be fixed in the bolt plate in left side, micro-wave oven furnace chamber control panel back; Design in the latch hole at bolt plate middle part corresponding with bolt; Be fixed in pilot switch, primary switch, secondary switch on the bolt plate; The magnetic sheet that embedding sticks at the usefulness of closing the door of four jiaos of furnace door frame medial surfaces constitutes.
The front side edge middle part is injected with latch hole above the above-mentioned bolt plate; Be injected with the installation slotted eye of micro-wave oven pilot switch, primary switch, secondary switch in the latch hole on the upper and lower and back bolt plate; Above-mentioned three switch contacts are thread in three slotted eyes on the bolt plate towards bolt; Design has the M and the U-shaped driving spring sheet of fulcrum axis hole between three switch contacts and bolt, and they are rotatably installed on the bolt plate with the fulcrum shaft of injection moulding on the bolt plate.
Above-mentioned bolt is a plate shape polycarbonate resin structure; The one of which lateral layout has the T shape boss platform that is crimped on M shape driving spring sheet middle part when inserting latch hole; It and bolt end are closed at door for microwave oven; Bolt inserts the time marquis of latch hole, compresses pilot switch, primary switch, secondary switch contact through M and U-shaped driving spring sheet, and each switch motion is advisable.
In the latch hole on the above-mentioned bolt plate; Go up or following installation slotted eye in two switches that also can lamination be spirally connected; Another side is installed the 3rd switch and on the fulcrum shaft of injection moulding on the bolt plate, install and can press the M shape driving spring sheet that touches two lamination switch contacts simultaneously of being spirally connected in the slotted eye; When bolt inserted latch hole, three switch contacts were all pressed by M shape driving spring sheet and are advisable about making.
Can lamination be spirally connected pilot switch, primary switch, secondary switch are installed in the slotted eye also in the back in the latch hole on the above-mentioned bolt plate; Can press the U-shaped driving spring sheet that touches three lamination switch contacts simultaneously and on the fulcrum shaft of injection moulding on the bolt plate, install; When bolt inserts latch hole, three switch contacts are all pressed by U-shaped driving spring sheet be advisable.
Above-mentioned door for microwave oven framework is designed with mounting groove for inboard four jiaos, and the magnetic sheet embedding of the usefulness of closing the door sticks in four jiaos of mounting grooves.
Advantage and good effect: switching device of microwave oven door of the present invention compared with prior art has the following advantages:
A. switching device of microwave oven door of the present invention has been cancelled last gate stop, down gate stop, release lever, release lever assembly, and simple in structure, handling ease, materials are few, cost is low.
B. the present invention just can control three switch motions with a bolt, has avoided existing door for microwave oven and switch pressing bad phenomenon.
C. it is succinct that the present invention makes the fire door inside structure, and switch door noise reduces.
D. attractive in appearance, easy to use.
Description of drawings
Fig. 1 is that the microwave oven of prior art is taken oblique view apart;
Fig. 2 is the door for microwave oven of prior art oblique view when opening;
Fig. 3 be micro-wave oven gate stop and the bolt plate of prior art cooperate and the bolt plate on each switch installation diagram;
Fig. 4 is button, control panel and the release lever decomposing schematic representation of the micro-wave oven of prior art;
Fig. 5 is that bolt cooperates and pilot switch, primary and secondary switch, M and U-shaped driving spring sheet installation diagram on the bolt plate with latch hole on the bolt plate in the switching device of microwave oven door of the present invention;
Fig. 6 is Fig. 5 part zoomed-in view;
Fig. 7 is an another kind of scheme implementation illustration of the present invention;
Fig. 8 is the magnetic sheet oblique view of door for microwave oven of the present invention bolt and usefulness of closing the door when opening;
Fig. 9 is the inboard magnetic sheet combination of door for microwave oven framework of the present invention figure;
Critical piece label declaration among each figure
1-top panel 2-front panel
3-bottom panel 4-rear board
5-fire door 6-furnace chamber, cooking room
7-electric apparatus room 8-control panel
9-transformer 10-magnetron
11-fan 12-glass rotating disk
13-fulcrum shaft 14-M shape driving spring sheet
15-bolt plate 16-goes up gate stop
Gate stop 18-boss under the 17-
19-bolt 20-latch hole
21-overhead gage 22-lower baffle plate
23-secondary switch 24-pilot switch
25-primary switch 25-bolt plate
26-magnetic sheet 27-contact
28-button 29-spring
30-release lever assembly 31-release lever
32-U shape driving spring sheet
The specific embodiment
In order to further specify technology contents of the present invention, characteristics and effect; Lift following instance and accompanying drawings again in down: like Fig. 1,2,5,6,7,8, shown in 9, switching device of microwave oven door of the present invention includes: formation micro-wave oven appearance, hold the housing of its parts; Be arranged at the furnace chamber 6 of left side, cooking food in the housing; Be connected in the fire door 5 of furnace chamber front with hinge; Be arranged at the electric apparatus room 7 on furnace chamber right side; Be fixed in the control panel 8 of electric apparatus room front; It is characterized in that: also include the bolt 19 that is fixed in furnace door frame front end medial surface middle part; Be fixed in the bolt plate 15 in left side, micro-wave oven furnace chamber control panel back; The corresponding latch hole 20 that is arranged at bolt plate middle part with bolt; The magnetic sheet 26 that embedding sticks at the usefulness of closing the door of four jiaos of furnace door frame medial surfaces constitutes.
The front side edge middle part is injected with latch hole 20 above the above-mentioned bolt plate 15; Be injected with the installation slotted eye of micro-wave oven pilot switch 24, primary switch 25, secondary switch 23 in the latch hole on the bolt plate of upper and lower and back; Above-mentioned three switch contacts are thread in three slotted eyes on the bolt plate towards bolt; Design has the M and the U-shaped driving spring sheet 14,32 of axis hole between three switch contacts and bolt, and they are rotatably installed on the bolt plate 15 with the fulcrum shaft 13 of injection moulding on the bolt plate.
Above-mentioned bolt is a plate shape polycarbonate resin structure; The one of which lateral layout has the T shape boss platform 18 that is crimped on M shape driving spring sheet middle part when inserting latch hole; It and bolt end are closed at door for microwave oven; Bolt 19 inserts the time marquis of latch hole 20, compresses pilot switch, primary switch, secondary switch contact 27 through M and U-shaped driving spring sheet, and each switch motion is advisable.
In the latch hole 20 on the above-mentioned bolt plate 15; Go up or following installation slotted eye in two switches that also can lamination be spirally connected; Another side is installed the 3rd switch and on the fulcrum shaft 13 of injection moulding on the bolt plate, install and can press the M shape driving spring sheet 14 that touches two lamination switch contacts simultaneously of being spirally connected in the slotted eye; When bolt inserted latch hole, three switch contacts 27 were all pressed by M shape driving spring sheet and are advisable about making.
Can lamination be spirally connected pilot switch 24, primary switch 25, secondary switch 23 are installed in the slotted eye also in the back in the latch hole 20 on the above-mentioned bolt plate 15; Can press the U-shaped driving spring sheet 32 that touches three lamination switch contacts simultaneously and on the fulcrum shaft 13 of injection moulding on the bolt plate 15, install; When bolt 19 inserts latch hole 20, three switch contacts 27 are all pressed by U-shaped driving spring sheet 32 be advisable.
Above-mentioned door for microwave oven framework is designed with mounting groove for inboard four jiaos, and magnetic sheet 26 embeddings of the usefulness of closing the door stick in four jiaos of mounting grooves.
Claims (5)
1. switching device of microwave oven door includes: form the micro-wave oven appearance, hold the housing of its parts; Be arranged at the furnace chamber of left side, cooking food in the housing; Be connected in the fire door of furnace chamber front with hinge; Be arranged at the electric apparatus room on furnace chamber right side; Be fixed in the control panel of electric apparatus room front; Be fixed in the bolt at furnace door frame front end medial surface middle part; Be fixed in the bolt plate in the left side, control panel back of electric apparatus room front; Design in the latch hole at bolt plate middle part corresponding with bolt; Be fixed in pilot switch, primary switch, secondary switch on the bolt plate; Embedding sticks at the magnetic sheet of the usefulness of closing the door of four jiaos of furnace door frame medial surfaces; It is characterized in that: above-mentioned bolt plate towards the micro-wave oven front side to the middle part be injected with latch hole; Be injected with the installation slotted eye of pilot switch, primary switch, secondary switch in the latch hole on the bolt plate of upper and lower and back; Above-mentioned three switch contacts are thread in said three the installation slotted eyes on the bolt plate towards bolt; Design has the M and the U-shaped driving spring sheet of axis hole between three switch contacts and bolt, and they are rotatably installed on the bolt plate with the fulcrum shaft of injection moulding on the bolt plate.
2. switching device of microwave oven door according to claim 1; It is characterized in that: above-mentioned bolt is a plate shape polycarbonate resin structure; The one of which lateral layout has the T shape boss platform that is crimped on M shape driving spring sheet middle part when inserting latch hole, and it and bolt end are closed at door for microwave oven, and bolt inserts the time marquis of latch hole; Compress pilot switch, primary switch, secondary switch contact through M and U-shaped driving spring sheet, make each switch motion.
3. switching device of microwave oven door according to claim 1 is characterized in that: above-mentioned door for microwave oven framework is designed with mounting groove for inboard four jiaos, and the magnetic sheet embedding of the usefulness of closing the door sticks in four jiaos of mounting grooves.
4. switching device of microwave oven door includes: form the micro-wave oven appearance, hold the housing of its parts; Be arranged at the furnace chamber of left side, cooking food in the housing; Be connected in the fire door of furnace chamber front with hinge; Be arranged at the electric apparatus room on furnace chamber right side; Be fixed in the control panel of electric apparatus room front; Be fixed in the bolt at furnace door frame front end medial surface middle part; Be fixed in the bolt plate in the left side, control panel back of electric apparatus room front; Design in the latch hole at bolt plate middle part corresponding with bolt; Be fixed in pilot switch, primary switch, secondary switch on the bolt plate; Embedding sticks at the magnetic sheet of the usefulness of closing the door of four jiaos of furnace door frame medial surfaces; It is characterized in that: above-mentioned bolt plate towards the micro-wave oven front side to the middle part be injected with latch hole; Be injected with the installation slotted eye on the bolt plate of latch hole back; Go up in the latch hole or following installation slotted eye in lamination two switches that are spirally connected; Another side is installed the 3rd switch and on the fulcrum shaft of injection moulding on the bolt plate, install and press the M shape driving spring sheet that touches two lamination switch contacts simultaneously of being spirally connected in the slotted eye, and when bolt inserted latch hole, making up and down, three switch contacts were all pressed by M shape driving spring sheet.
5. switching device of microwave oven door includes: form the micro-wave oven appearance, hold the housing of its parts; Be arranged at the furnace chamber of left side, cooking food in the housing; Be connected in the fire door of furnace chamber front with hinge; Be arranged at the electric apparatus room on furnace chamber right side; Be fixed in the control panel of electric apparatus room front; Be fixed in the bolt at furnace door frame front end medial surface middle part; Be fixed in the bolt plate in the left side, control panel back of electric apparatus room front; Design in the latch hole at bolt plate middle part corresponding with bolt; Be fixed in pilot switch, primary switch, secondary switch on the bolt plate; Embedding sticks at the magnetic sheet of the usefulness of closing the door of four jiaos of furnace door frame medial surfaces; It is characterized in that: above-mentioned bolt plate towards the micro-wave oven front side to the middle part be injected with latch hole; Be injected with the installation slotted eye on the bolt plate of latch hole back; Lamination be spirally connected pilot switch, primary switch, secondary switch are installed in the slotted eye; Can press the U-shaped driving spring sheet that touches three lamination switch contacts simultaneously and on the fulcrum shaft of injection moulding on the bolt plate, install, when bolt inserts latch hole, three switch contacts all pressed by U-shaped driving spring sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710056600XA CN101230999B (en) | 2007-01-25 | 2007-01-25 | Switching device of microwave oven door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710056600XA CN101230999B (en) | 2007-01-25 | 2007-01-25 | Switching device of microwave oven door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101230999A CN101230999A (en) | 2008-07-30 |
| CN101230999B true CN101230999B (en) | 2012-06-13 |
Family
ID=39897683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710056600XA Expired - Fee Related CN101230999B (en) | 2007-01-25 | 2007-01-25 | Switching device of microwave oven door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101230999B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080838B (en) * | 2011-01-27 | 2013-09-11 | 广东格兰仕微波炉电器制造有限公司 | Micro-switch mounting structure for microwave oven |
| KR102139505B1 (en) * | 2013-12-24 | 2020-07-31 | 엘지전자 주식회사 | Cooking appliance |
| CN108433567B (en) * | 2018-03-27 | 2020-07-03 | 广东美的厨房电器制造有限公司 | Door body closing mechanism and cooking device |
| CN110424830A (en) * | 2019-08-09 | 2019-11-08 | 安徽冠东科技有限公司 | A kind of shift fork rotary door device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4509779A (en) * | 1981-09-21 | 1985-04-09 | Tokyo Shibaura Denki Kabushiki Kaisha | Locking device for door of cooking apparatus |
| CN2358364Y (en) * | 1998-12-03 | 2000-01-12 | 梁月初 | Microwave oven |
| CN1888553A (en) * | 2005-06-27 | 2007-01-03 | 乐金电子(天津)电器有限公司 | Microwave oven and method for controlling microwave oven |
-
2007
- 2007-01-25 CN CN200710056600XA patent/CN101230999B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4509779A (en) * | 1981-09-21 | 1985-04-09 | Tokyo Shibaura Denki Kabushiki Kaisha | Locking device for door of cooking apparatus |
| CN2358364Y (en) * | 1998-12-03 | 2000-01-12 | 梁月初 | Microwave oven |
| CN1888553A (en) * | 2005-06-27 | 2007-01-03 | 乐金电子(天津)电器有限公司 | Microwave oven and method for controlling microwave oven |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平11-54264A 1999.02.26 |
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| Publication number | Publication date |
|---|---|
| CN101230999A (en) | 2008-07-30 |
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Granted publication date: 20120613 Termination date: 20150125 |
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| EXPY | Termination of patent right or utility model |