CN2687536Y - Microwave oven inter locking switch mechanism - Google Patents
Microwave oven inter locking switch mechanism Download PDFInfo
- Publication number
- CN2687536Y CN2687536Y CN 200420044091 CN200420044091U CN2687536Y CN 2687536 Y CN2687536 Y CN 2687536Y CN 200420044091 CN200420044091 CN 200420044091 CN 200420044091 U CN200420044091 U CN 200420044091U CN 2687536 Y CN2687536 Y CN 2687536Y
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- cam
- switch
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- wall
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Abstract
The utility model relates to a novel microwave oven interlocking switch mechanism which comprises a bracket (1), door hooks (2) and (2A) fixed on a door, a primary interlocking switch (7), a secondary interlocking switch (5) and a monitoring switch (6), wherein the primary interlocking switch (7), the secondary interlocking switch (5) and the monitoring switch (6) are arranged on the bracket (1), a cam (9) and a cam (10) which act mutually are arranged on the other surface of the bracket, the cam (9) and the cam (10) can be pushed or pulled to rotate by the door hooks (2) and (2A), the move of the cam (10) controls the primary interlocking switch (7) and the monitoring switch (6) to turn on and turn off, the move of the cam (9) controls the secondary interlocking switch (5) to turn on or turn off, one end of an elastic restoring piece (18) is arranged on the cam (9), the other end is inserted into the bracket (1), one end of an elastic restoring piece (19) is arranged on the cam (10), and the other end is inserted into the bracket (1). During the use process, the utility model can avoid short circuit conditions of circuits and burned fuses and can avoid the leakage of microwaves of a microwave oven when a door of the microwave oven is open. The utility model has the advantages of simple structure, convenience and practicality.
Description
1, technical field:
The utility model is a kind of novel microwave oven interlock switch mechanism, belongs to the innovative technology of micro-wave oven interlock switch mechanism.
2, background technology:
Existing micro-wave oven interlock switch mechanism such as Fig. 1,2,3, shown in 4, comprise support (1), be fixed on the gate stop (2 on the body, 2A), main interlocking switch (7), duplicate invoice lock-switch (5) and pilot switch (6), main interlocking switch (7), duplicate invoice lock-switch (5) is a normal open switch, pilot switch (6) is a normally closed switch, above-mentioned three switches are installed on the corresponding position of support (1), the cam mechanism (8) of control main interlocking switch (7) break-make also is installed on support (1), the cam mechanism (3) of control duplicate invoice lock-switch (5) break-make, the cam mechanism (4) of control pilot switch (6) break-make, when micro-wave oven uses, closed fire door, gate stop (2A) touches cam mechanism (4) earlier, pilot switch (6) action, and be off-state this moment, gate stop (2 then, 2A) touch cam mechanism (8) and cam mechanism (3) again, main interlocking switch (7), duplicate invoice lock-switch (5) action is closure state, and micro-wave oven is started working; When picking and placeing food, open fire door, because above-mentioned cam mechanism (8), cam mechanism (4) and cam mechanism (3) are three independently mechanisms, main interlocking switch (7), duplicate invoice lock-switch (5) and pilot switch (6) can not effectively be guaranteed actuation time, gate stop (2A) might break away from cam mechanism (4) earlier, pilot switch (6) returns to normal (being closure state), gate stop (2 then, 2A) slowly break away from cam mechanism (8) and cam mechanism (3), gate stop (2, when 2A) also not breaking away from cam mechanism (8) and cam mechanism (3) fully, main interlocking switch (7), duplicate invoice lock-switch (5) is also in action, be closure state, the easy like this short circuit that causes, blown out; In addition, when misoperation occurring, run into cam mechanism (8) after putting in from support gate stop (2) groove as object with club and so on, main interlocking switch (7) action, the easy like this micro-wave oven that causes is being opened under the door state also operate as normal, and microwave is revealed, very dangerous, for avoiding the generation of above-mentioned situation, cam mechanism (8) and main interlocking switch (7) must be installed in more hidden place on the support (1), can cause its complex structure a lot of like this.
3, summary of the invention:
The purpose of this utility model is to overcome the problems referred to above, a kind of not only can avoid occurring short circuit, blown out situation are provided, and can guarantee micro-wave oven in that opening under the door state in no case may operate as normal, the micro-wave oven interlock switch mechanism of avoiding microwave to reveal.The utility model is simple in structure, and is safe and reliable.
Structural representation of the present utility model such as Fig. 5,6,7,8,9,10,11,12, shown in 13, include support (1), be fixed on the gate stop (2 on the body, 2A), main interlocking switch (7), duplicate invoice lock-switch (5) and pilot switch (6), wherein main interlocking switch (7), duplicate invoice lock-switch (5) and pilot switch (6) are installed on the support (1), interactional cam (9) and cam (10) are installed on the support another side, gate stop (2,2A) can promote or spur cam (9) and cam (10) rotates, the motion control master interlocking switch (7) of cam (10) and the break-make of pilot switch (6), the break-make of the motion control duplicate invoice lock-switch (5) of cam (9), elastic reset spare (18) one ends are contained on the cam (9), the other end is inserted on the support (1), one end of elastic reset spare (19) is contained on the cam (10), and the other end is inserted into support (1).
Above-mentioned main interlocking switch (7), duplicate invoice lock-switch (5) are normal open switch, and pilot switch (6) is a normally closed switch.
Above-mentioned elastic reset spare (18) is a torsion spring, and elastic reset spare (19) is a torsion spring.
Above-mentioned cam (9) is provided with camshaft (91) and cam-wall (92), cam (10) is provided with camshaft (101) and two cam-wall (102), (103), support (1) is provided with slotted eye (13), (14), (15) and camshaft installing hole (16), (17), cam (9) and cam (10) are inserted into the set camshaft installing hole (16) of support (1) respectively by camshaft (91) and camshaft (101) respectively, (17) on, the extended slotted eye of cam-wall (92) (13) touches duplicate invoice lock-switch (5) and controls its break-make, the extended slotted eye of cam-wall (102) (14) touches pilot switch (6) and controls its break-make, and the extended slotted eye of cam-wall (103) (15) touches main interlocking switch (7) and controls its break-make.
Above-mentioned cam (9) also is provided with curved profile (93), (94), cam (10) also is provided with curved profile (104) and evagination profile (105), the evagination profile (105) of cam (10) places the curved profile (93) of cam (9), and gate stop (2,2A) places the curved profile (94) of cam (9) and the curved profile (104) of cam (10) respectively.
Above-mentioned cam (10) places on the tangential direction of cam (9) with the position of engagement A of cam (9).
The utility model is owing to adopt interactional cam (9) and cam (10), gate stop (2,2A) can promote or spur cam (9) and cam (10) rotates, cam (10) touches pilot switch (6) by the cam-wall on it (102) and controls pilot switch (6) break-make, touch main interlocking switch (7) by the cam-wall on it (103) and control interlocking switch (7) break-make, cam (9) touches duplicate invoice lock-switch (5) by the cam-wall on it (92) and controls duplicate invoice lock-switch (5) break-make, because cam (10) is provided with two cam-wall (102), (103) position is fixed, so two cam-wall (102), (103) time difference of touching main interlocking switch (7) and pilot switch (6) is also fixed.Closed fire door, pilot switch (6) is action (being off-state) earlier, main interlocking switch (7) and duplicate invoice lock-switch (5) back action (being closure state), micro-wave oven is started working; When opening fire door, main interlocking switch (7) and duplicate invoice lock-switch (5) return to normal earlier (being off-state), return to normal behind the pilot switch (6) (closure state), micro-wave oven quits work, pilot switch when said structure has been avoided opening fire door (6) return to normal earlier (closure state), the phenomenon that main interlocking switch (7) and duplicate invoice lock-switch (5) also are in closure state takes place, and avoids occurring short circuit, blown out phenomenon; After opening fire door, main interlocking switch (7), duplicate invoice lock-switch (5) return to normal (being off-state), pilot switch (6) returns to normal (being closure state), main cam (10) just in time places on the tangential direction of cam (9) with the position of engagement A of cam (9), cam (10) is by locked, because main cam (10) and cam (9) interact can self-locking, so even maloperation occurs, cam (10) can not move yet, guarantee micro-wave oven in that opening under the door state can not operate as normal, thereby prevented the leakage of microwave effectively.Therefore, main interlocking switch (7) need not be considered rack-mount hidden place, thereby can make structure of the present utility model simple as far as possible.The utility model is a kind of ingenious, simple in structure, safe and reliable micro-wave oven interlock switch mechanism that designs.
4, description of drawings:
Fig. 1 is the prior art structural representation;
Fig. 2 take down duplicate invoice lock-switch (5) for Fig. 1 and the cam mechanism (3) that cooperates with it after structural representation;
Fig. 3 is a prior art STRUCTURE DECOMPOSITION schematic diagram;
Fig. 4 is prior art and circuit theory diagrams of the present utility model;
Structural representation when Fig. 5 opens for the utility model door of microwave oven;
Fig. 6 is Fig. 5 left view;
Fig. 7 is Fig. 5 rearview;
Fig. 8 is the utility model STRUCTURE DECOMPOSITION schematic diagram;
Fig. 9 is the STRUCTURE DECOMPOSITION schematic diagram of the utility model from another angle;
Figure 10 is for after door of microwave oven closes, structural representation of the present utility model during the micro-wave oven user mode;
Figure 11 is Figure 10 rearview;
Figure 12 is a structural representation of the present utility model in the door of microwave oven opening procedure;
Figure 13 is the rearview of Figure 12.
5, the specific embodiment:
Embodiment:
Structural representation of the present utility model such as Fig. 5,6,7,8,9,10,11,12, shown in 13, include support (1), be fixed on the gate stop (2 on the body, 2A), main interlocking switch (7), duplicate invoice lock-switch (5) and pilot switch (6), wherein main interlocking switch (7), duplicate invoice lock-switch (5) and pilot switch (6) are installed on the support (1), interactional cam (9) and cam (10) are installed on the support another side, gate stop (2,2A) can promote or spur the motion of cam (9) and cam (10), the motion control master interlocking switch (7) of cam (10) and the break-make of pilot switch (6), the break-make of the motion control duplicate invoice lock-switch (5) of cam (9), elastic reset spare (18) one ends are contained on the cam (9), the other end is inserted on the support (1), one end of elastic reset spare (19) is contained on the cam (10), and the other end is inserted into support (1).In the present embodiment, above-mentioned main interlocking switch (7), duplicate invoice lock-switch (5) are normal open switch, and pilot switch (6) is a normally closed switch.Above-mentioned elastic reset spare (18) is a torsion spring, and elastic reset spare (19) is a torsion spring.
Install and control for convenient, above-mentioned cam (9) is provided with camshaft (91) and cam-wall (92), cam (10) is provided with camshaft (101) and two cam-wall (102), (103), support (1) is provided with slotted eye (13), (14), (15) and camshaft installing hole (16), (17), cam (9) and cam (10) are inserted into the set camshaft installing hole (16) of support (1) respectively by camshaft (91) and camshaft (101) respectively, (17) on, the extended slotted eye of cam-wall (92) (13) touches duplicate invoice lock-switch (5) and controls its break-make, the extended slotted eye of cam-wall (102) (14) touches pilot switch (6) and controls its break-make, and the extended slotted eye of cam-wall (103) (15) touches main interlocking switch (7) and controls its break-make.
For making things convenient for gate stop (2,2A) to promote or pulling cam (9) and cam (10) motion, and guarantee the interaction relationship of cam (9) and cam (10), above-mentioned cam (9) also is provided with curved profile (93), (94), cam (10) also is provided with curved profile (104) and evagination profile (105), the evagination profile (105) of cam (10) places the curved profile (93) of cam (9), and gate stop (2,2A) places the curved profile (94) of cam (9) and the curved profile (104) of cam (10) respectively.
Misoperation occurs after avoiding opening fire door, above-mentioned cam (10) is on the common tangent direction of cam (9) and cam (10) with the position of engagement A of cam (9) after opening fire door.
Gate stop (2 of the present utility model, 2A) can promote or spur cam (9) and cam (10) rotates, because of touching pilot switch (6) by the cam-wall on it (102), cam (10) controls pilot switch (6) break-make, touch main interlocking switch (7) by the cam-wall on it (103) and control interlocking switch (7) break-make, cam (9) touches duplicate invoice lock-switch (5) by the cam-wall on it (92) and controls duplicate invoice lock-switch (5) break-make, because cam (10) is provided with two cam-wall (102), (103) position is fixed, so above-mentioned two cam-wall (102), (103) time difference of touching main interlocking switch (7) and pilot switch (6) is also fixed.When micro-wave oven uses, closed fire door, gate stop (2,2A) is actuating cam (9) and cam (10) simultaneously, make its rotation, cam-wall (102) on the cam (10) is touched pilot switch (6) earlier, pilot switch (6) action, be off-state, along with fire door is further closed, the cam-wall (92) that cam-wall (103) on the cam (10) is touched on main interlocking switch (7), the while cam (9) is touched duplicate invoice lock-switch (5), main interlocking switch (7) and duplicate invoice lock-switch (5) action are closure state, and micro-wave oven can be started working; Open in the fire door process, as Figure 12, shown in 13, gate stop (2,2A) pulling cam (9) and cam (10), make its rotation, cam-wall (103) on the cam (10) breaks away from main interlocking switch (7) earlier, cam-wall (92) on the cam (9) breaks away from duplicate invoice lock-switch (5) simultaneously, main interlocking switch (7) and duplicate invoice lock-switch (5) recover normally open, at this moment, cam-wall (102) on the cam (10) does not also break away from pilot switch (6) fully, along with gate stop (2,2A) further pulling, cam-wall (102) on the cam (10) breaks away from pilot switch (6), and pilot switch (6) recovers the normally closed state that closes, and micro-wave oven quits work; After opening fire door, as Fig. 5,6, shown in 7, main interlocking switch (7), duplicate invoice lock-switch (5) is a normally open, pilot switch (6) is a normally off, above-mentioned cam (10) is on the common tangent direction of cam (9) and cam (10) with the position of engagement A of cam (9), at this moment, cam (10) is by locked, when misoperation occurring, disclose cam (10) after putting in from the flexible slotted eye of support gate stop (2A) as object with club and so on, cam (10) can not move yet, main interlocking switch (7) is a normally open, after again the object of club and so on being put in, disclose cam (9) from the flexible slotted eye of support gate stop (2), cam (9) tripping cam (10), cam (9) action, duplicate invoice lock-switch (5) is closure state, take out the object of club and so on, cam (9) restores to the original state under elastic reset spare (18) effect, duplicate invoice lock-switch (5) is a normally open, but after putting in from the flexible slotted eye of support gate stop (2), discloses in the maloperation process of cam (9) on the object with club and so on, cam (10) can not move yet, main interlocking switch (7) still is a normally open, avoided micro-wave oven opening under the door state like this and operate as normal has prevented the microwave leakage.
Claims (6)
1, a kind of novel microwave oven interlock switch mechanism, include support (1), be fixed on the gate stop (2 on the body, 2A), main interlocking switch (7), duplicate invoice lock-switch (5) and pilot switch (6), main interlocking switch (7), duplicate invoice lock-switch (5) and pilot switch (6) are installed on the support (1), interactional cam (9) and cam (10) are installed on the support another side, it is characterized in that gate stop (2,2A) can promote or spur cam (9) and cam (10) rotates, the motion control master interlocking switch (7) of cam (10) and the break-make of pilot switch (6), the break-make of the motion control duplicate invoice lock-switch (5) of cam (9), elastic reset spare (18) one ends are contained on the cam (9), the other end is inserted on the support (1), one end of elastic reset spare (19) is contained on the cam (10), and the other end is inserted into support (1).
2, micro-wave oven interlock switch mechanism according to claim 1 is characterized in that above-mentioned main interlocking switch (7), duplicate invoice lock-switch (5) are normal open switch, and pilot switch (6) is a normally closed switch.
3, micro-wave oven interlock switch mechanism according to claim 1 is characterized in that above-mentioned elastic reset spare (18) is a torsion spring, and elastic reset spare (19) is a torsion spring.
4, according to claim 1 or 2 or 3 described micro-wave oven interlock switch mechanism, it is characterized in that above-mentioned cam (9) is provided with camshaft (91) and cam-wall (92), cam (10) is provided with camshaft (101) and two cam-wall (102), (103), support (1) is provided with slotted eye (13), (14), (15) and camshaft installing hole (16), (17), cam (9) and cam (10) are inserted into the set camshaft installing hole (16) of support (1) respectively by camshaft (91) and camshaft (101) respectively, (17) on, the extended slotted eye of cam-wall (92) (13) touches duplicate invoice lock-switch (5) and controls its break-make, the extended slotted eye of cam-wall (102) (14) touches pilot switch (6) and controls its break-make, and the extended slotted eye of cam-wall (103) (15) touches main interlocking switch (7) and controls its break-make.
5, micro-wave oven interlock switch mechanism according to claim 4, it is characterized in that above-mentioned cam (9) also is provided with curved profile (93), (94), cam (10) also is provided with curved profile (104) and evagination profile (105), the evagination profile (105) of cam (10) places the curved profile (93) of cam (9), and gate stop (2,2A) places the curved profile (94) of cam (9) and the curved profile (104) of cam (10) respectively.
6, micro-wave oven interlock switch mechanism according to claim 5 is characterized in that above-mentioned cam (10) and the position of engagement A of cam (9) after opening fire door are on the common tangent direction of cam (9) and cam (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420044091 CN2687536Y (en) | 2004-03-29 | 2004-03-29 | Microwave oven inter locking switch mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420044091 CN2687536Y (en) | 2004-03-29 | 2004-03-29 | Microwave oven inter locking switch mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2687536Y true CN2687536Y (en) | 2005-03-23 |
Family
ID=34671831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420044091 Expired - Lifetime CN2687536Y (en) | 2004-03-29 | 2004-03-29 | Microwave oven inter locking switch mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2687536Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101545340B (en) * | 2009-05-13 | 2012-01-04 | 合肥荣事达三洋电器股份有限公司 | Mechanical children lock for microwave oven |
| CN104196363A (en) * | 2014-08-22 | 2014-12-10 | 宁波方太厨具有限公司 | Door interlocking structure |
-
2004
- 2004-03-29 CN CN 200420044091 patent/CN2687536Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101545340B (en) * | 2009-05-13 | 2012-01-04 | 合肥荣事达三洋电器股份有限公司 | Mechanical children lock for microwave oven |
| CN104196363A (en) * | 2014-08-22 | 2014-12-10 | 宁波方太厨具有限公司 | Door interlocking structure |
| CN104196363B (en) * | 2014-08-22 | 2016-05-18 | 宁波方太厨具有限公司 | A kind of gate interlock structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: FOSHAN MEDIA DAILYELECTRIC APPLIANCE GROUP CO.,LT Free format text: FORMER OWNER: MEIDI GROUP CO LTD, GUANGDONG Effective date: 20050805 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20050805 Address after: 528311 Penglai Road, Beijiao Town, Shunde District, Guangdong, Foshan Patentee after: Meidi Daily electrical Appliances Co., Ltd., Foshan City Address before: 528311 Penglai Road, Beijiao Town, Shunde, Guangdong Patentee before: Meidi Group Co., Ltd., Guangdong |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20040329 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |