CN1615052A - Door of microwave oven with structure for preventing microwave leakage - Google Patents

Abstract

The microwave oven door with a microwave leakage prevention structure of the present invention adjusts the positions of the multiple slots of the blocking structure through tests to make it divided into multiple blockings with long and short ones, and cooperates with two different slot widths to achieve microwave resistance. An optimized structure with wide streaming frequency bandwidth and small microwave leakage. The cut groove is expanded into a rectangular hole on the part of the peripheral wall of the blocking structure, and a rectangular punching hole is added to the longer blocking peripheral wall, so that the mechanical strength of the peripheral walls of each blocking is basically the same. Selectively make pin holes to insert interior trim panels on some blocked peripheral walls. A pair of shallow strip-shaped stamping dimples are arranged on the pinholes on the peripheral walls of each blockage, and deeper strip-shaped stamping dimples are arranged on the others to enhance mechanical strength. A plurality of claws are arranged on the inner surface of the door cover, and the corresponding rectangular punching holes or rectangular holes of the blocking structure are used for positioning and fixing. Strip holes are provided on the outer wall around the flow resistance groove near the edge of the outer peripheral wall, which reduces the difficulty of folding and improves the yield.

Description

Microwave oven door with anti-microwave leakage structure

Technical field

The invention relates to a microwave oven door, in particular to a microwave oven door with the function of preventing microwaves from leaking out.

Background technique

A microwave oven that utilizes microwave heating to cook food is usually made into a box type. A cooking chamber with an open front and a closed equipment chamber are arranged in the box-type housing. The microwave generator assembly that generates microwaves and the electronic structural parts that control it are installed in the equipment room. The cooking chamber is used to place food to be heated and cooked. A door is installed at the opening at the front end of the cooking chamber. When the door is opened, food can be put in or taken out, and when it is closed, the microwave can be shielded and the cooking status of the food can be observed through the window formed by a plurality of micro-holes. However, if special measures are not taken in the gap between the door and the front end of the cooking chamber, microwaves will leak out, endangering the safety of users. In order to solve the above problems, Chinese Invention Patent Specification CN 1095972C discloses a patent No.: ZL95118872.0, a technical scheme called "microwave oven door with microwave shielding structure". It is based on the microwave path limitation of the anti-microwave leakage structure of the door, so as to reduce the leakage of microwave fundamental wave. The technical proposal proposes a microwave oven door, including: a door screen plate with a window formed by a plurality of micro-holes, through which the cooking state of food can be observed; a sealing surface formed along the peripheral area of the door screen plate, which is in contact with the The entire peripheral area of the front panel formed at the opening of the front end of the cooking chamber of the microwave oven is connected to firstly shield microwave leakage; a door frame integrally formed by extending the sealing surface, which has a blocking structure, is used to shield again Microwave leakage between the panels; the blocking structure is bent from the outer periphery of the sealing surface into a choke groove with a rectangular cross section and an opening close to the sealing surface; the cross section of the choke groove conforms to the length of the microwave path is 1/4*λ0, and λ0 is Free space microwave wavelength; along the inner wall and the outer peripheral wall of the choke groove, there are a plurality of slits, and the blocking structure is divided into many blocks; impedance enhancement holes are formed on the outer wall of the choke groove facing the slits. This technical solution is designed according to the microwave fundamental wave of the microwave generator components, and the microwave blocking frequency bandwidth is narrow. In the actual mass production process, it is inevitable that due to the differences of the microwave generator components and the deviation of the mechanical size of the blocking structure, each microwave oven There is a large difference in leakage performance. In actual use, there are microwaves of other wavelengths such as the higher harmonics of the microwave fundamental wave in the cooking chamber of the microwave oven, and it is necessary to greatly expand the bandwidth of the microwave choke frequency to meet the requirements of safety protection. Also, in this technical scheme, the door screen, the sealing surface, the door frame and its blocking structure are formed by punching and bending metal sheets; the mechanical strength of each blocking is low, and it is easily deformed by external force; especially in the door frame and its blocking structure When the decorative board is installed on the structure, it is easy to cause some blockages to be deformed, and the leakage prevention performance will be deteriorated; in addition, it is difficult to form the edge of the outer wall around the choke groove and the outer peripheral wall.

Contents of the invention

The present invention aims to provide a microwave oven door with a microwave leakage-proof structure, which has a relatively wide bandwidth of microwave blocking frequency and has little difference in the leakage-proof performance of various microwave ovens in the actual mass production process.

The second object of the present invention is to provide a microwave oven door with a microwave blocking structure that has high mechanical strength, is not easily deformed, is easy to install decorative panels and is easy to fold and shape, and has a wide microwave blocking frequency bandwidth. .

The object of the present invention is achieved by the following scheme: a microwave oven door with a microwave leakage prevention structure, comprising: a door screen panel with a window formed by many microholes, through which the cooking state of the food can be observed; A sealing surface formed by the peripheral area of the door screen panel, which is connected to the entire peripheral area of the front panel formed at the opening at the front end of the cooking chamber of the microwave oven, for shielding microwave leakage first; a door frame integrally formed by extending the sealing surface to the outer periphery , which has a blocking structure, which is used to shield the microwave leaked from between the sealing surface and the front panel again; the blocking structure is bent from the outer periphery of the sealing surface into a rectangular cross-section around the blocking groove and opened near the sealing surface; along the The inner wall and the outer peripheral wall around the choke groove are provided with a plurality of slits, and the blocking structure is divided into multiple blockings; the multiple slits of the blocking structure make the blocking structure divided into a plurality of long and short blocks. The bandwidth of the microwave choke frequency is widened by adjusting each choke length separately.

Furthermore, each slot of the blocking structure has the same depth and at least two different widths, and the quality of microwave blocking flow within the frequency band of microwave blocking can be further improved by adjusting the width of each slot respectively.

The second object of the present invention is achieved based on the above scheme and by taking the following measures: In this microwave oven door with a microwave leakage prevention structure, the periphery of the door screen is stretched backwards and folded to form a rectangular ring-shaped flat sealing surface ; The choke groove is formed by the sealing surface extending forward beyond the door screen to form the inner peripheral wall, which is folded outward to form the outer wall, then extended backwards and lower than the sealing surface to form the outer peripheral wall, and finally folded flat to the sealing surface to form the inner wall; the free end of the inner wall There is an opening between the groove and the inner peripheral wall; the part of the outer peripheral wall of each cut groove located at the periphery of the choke groove expands from its center line to the adjacent two blocked outer peripheral walls to form a rectangular hole so that the head of the cut groove is turned over on the outer peripheral wall The tail of the rectangular hole is a T-shaped slot with a strip cut on the inner wall; and a rectangular punching hole is added near the inner wall in the middle of the longer blocked outer peripheral wall, and there are two holes between the two sides of the rectangular punching hole and the rectangular hole. Strip-shaped punching dimples along the width direction of the outer peripheral wall for enhanced mechanical strength, and strip-shaped punched dimples along the width direction of the outer peripheral wall for enhanced mechanical strength.

A preferred structure also includes an interior trim panel installed on its rear side to decorate and protect the blocking structure; each side of the interior trim panel periphery is respectively provided with at least two pins extending toward the outer peripheral wall of the choke slot ; Among the blockages on the same side of the peripheral wall around the choke groove, pin holes for inserting interior trim panel pins are selectively made on multiple blockage peripheral walls; both sides of each pin hole are connected with rectangular holes or rectangular punch Each of the holes has a shallower strip-shaped stamping dimple; and the other strip-shaped stamping dimples made by blocking the peripheral wall are deeper strip-shaped stamping dimples.

The preferred structure also includes a door cover installed on its front side for decoration and protection; a plurality of claws are arranged near the periphery of the inner surface of the door cover, and each claw is inserted into the corresponding rectangular shape of the blocking structure respectively. On the edge of the punched or rectangular hole near the outer wall.

It also includes a door hook with upper and lower translation guide blocks installed on one of its side edges to lock it at the front opening of the cooking chamber of the microwave oven after it is closed, corresponding to the baffle groove periphery of the blocking structure. The outer peripheral wall of the vertical side of the door hook is provided with elongated upper and lower translation guide holes corresponding to the upper and lower translation guide blocks on the outer wall, and the depth of each groove corresponding to the upper and lower translation guide holes is adapted. Reduce; choose a block between the upper and lower translation guide holes of the vertical edge on the same side, punch out a gap on the outer wall near the outer peripheral wall, and fold it to the outside of the outer peripheral wall to form a hook for hanging the door hook return spring; The upper and lower translation guide holes and the blocking outer peripheral wall of the hook do not have a strip-shaped punching dimple along the width direction of the outer peripheral wall to enhance the mechanical strength.

Aiming at the hemming position on the outer wall near the outer peripheral wall on the peripheral wall of the choke groove where the hemming forming is difficult, strip-shaped holes for auxiliary folding are made corresponding to each blocked outer peripheral wall at the hemming position on the outer wall near the outer peripheral wall.

The recommended strip-shaped hole form is: the strip-shaped holes are formed in groups of three on the outer wall of the longer blockage, the central one is punched against the blocked rectangular hole, and the ones on both sides are respectively facing the blocked one. The strip-shaped punching socket or pin hole; the strip-shaped holes are formed as a group on the outer wall of the shorter blockage, facing the center of the blockage.

The microwave oven door with a microwave leakage prevention structure of the present invention measures the microwave leakage of the oven door from 30MHz to 18GHz through repeated tests, thereby repeatedly adjusting the specific positions of the multiple slots of the blocking structure, so that the blocking structure is divided into long and short Multiple blockages, combined with the selection of two different slot widths, achieve an optimized structure with a wide microwave blocking frequency bandwidth and small microwave leakage. Due to the wide bandwidth of the microwave blocking frequency of this optimized structure, in the actual mass production process, even due to the differences of the components of the microwave generators and the deviation of the mechanical size of the blocking structure, and the high-order harmonics of the microwave fundamental wave in the microwave oven cooking chamber Microwaves with other wavelengths, the difference in the anti-leakage performance of each microwave oven is very small. Expand the cut groove in the part of the peripheral wall of the blocking structure into a rectangular hole, and selectively make pin holes on some of the blocked peripheral walls to insert the interior panels; there is a shallower hole between the two sides of the pin hole and the rectangular hole. strip-shaped punching dimples, and the other peripheral walls of each blockage are made with deeper strip-shaped punching dimples. The mechanical strength of the peripheral wall of each blockage is enhanced. And by adding a rectangular punching hole on the longer blockage peripheral wall, the mechanical strength of the longer blockage and the shorter blockage peripheral wall is basically the same. A plurality of claws on the inner surface of the door cover are respectively inserted into the corresponding rectangular punching holes of the blocking structure or on the edge of the rectangular hole near the outer wall, so that the door cover is integrated with the door frame and the blocking structure. Strip holes are provided on the outer wall around the flow resistance groove near the edge of the outer peripheral wall, which reduces the difficulty of folding and improves the yield.

Description of drawings

Fig. 1 is a schematic diagram of an unfolded structure of an embodiment of a microwave oven door with a microwave leakage prevention structure according to the present invention.

Fig. 2 is a front structural schematic view of the door body of the embodiment in Fig. 1 .

Fig. 3 is a rear structural schematic view of the door body of the embodiment in Fig. 1 .

Fig. 4 is a left view structural diagram of the door body of the embodiment in Fig. 1 .

Fig. 5 is a right view structural diagram of the door body of the embodiment in Fig. 1 .

Fig. 6 is a top structural schematic view of the door body of the embodiment in Fig. 1 .

Fig. 7 is a schematic diagram of the A-A sectional structure of the door body of the embodiment of Fig. 1 .

Fig. 8 is a schematic diagram showing the enlarged structure of the B-B section of the door body of the embodiment in Fig. 1 .

Fig. 9 is a schematic diagram showing the enlarged structure of the C-C section of the door body of the embodiment of Fig. 1 .

Detailed ways

Please refer to FIG. 1 for the unfolded structure of a preferred embodiment of the microwave oven door with microwave leakage prevention structure of the present invention. In this microwave oven door, the door main body 1 is rectangular and is formed by stamping steel plates; the upper and lower hinge seats 11 and 12 are installed on the upper and lower corners of the left side of the door main body 1, so as to be hinged with the oven body of the microwave oven. Door hook 13 and spring 14 are installed on the right side of door main body 1, so that after door is closed, door is locked at the cooking chamber front opening of microwave oven. The upper and lower parts of the door hook 13 each have a translation guide block 131 respectively stuck in the corresponding elongated translation guide holes 106 on the upper and lower sides of the right side of the door body 1, and the free end of the spring 14 is sleeved on the door hook. 13 on the hook 132 on the top, the fixed end of the spring 14 is sleeved on the hook 107 in the middle of the right vertical edge of the door main body 1. The door hook 13 can translate relative to the door body 1 . The rear side of the door main body 1 is equipped with a transparent inner window 15 and a rectangular frame-shaped trim panel 16 made of plastics, which plays a role in decoration and protection of the door main body 1. Each side of the interior trim panel 16 is provided with two to four pins 161 extending toward the outer peripheral wall of the door body 1 , and they are respectively inserted into corresponding pin holes 10334 on the outer peripheral wall of the door body 1 . A rectangular door cover 2 made of plastic is mounted on the front side of the door body 1 . Door cover plate 2 has window for the front, and the flat box of rear side is open; Its window place installs the decorative frame 21 of nickel plating, and a transparent exterior window 22 is installed behind the window. The door cover plate 2 plays a role of decoration and protection to the door body 1 .

Please refer to Fig. 2 to Fig. 9, the center of the door body 1 is a door screen 101 protruding forward, and the middle of the door screen 101 is a window 1011 composed of many micro-holes, the window 1011 can shield microwaves but allow light to pass through During use, the cooking state of food in the cooking chamber can be observed by the outer window 22 of the door cover plate 2 and the window 1011 and the inner window 15. Stretch backward along the periphery of the door screen plate 101 and turn over to form a rectangular ring-shaped flat sealing surface 102, which is connected with the entire peripheral area of the front panel formed at the front opening of the cooking chamber of the microwave oven, for first shielding microwave leakage . The periphery of the sealing surface 102 is stretched forward and folded to form a rectangular ring-shaped door frame 100 as a whole. The door frame 100 has a blocking structure, which is used to shield microwaves leaking from between the sealing surface 102 and the front panel of the cooking chamber of the microwave oven.

Please refer to FIG. 7 and FIG. 9 , the blocking structure is bent from the sealing surface 102 to the outer periphery to form a flow blocking groove 103 with a rectangular peripheral section and an opening close to the sealing surface 102 . The choke groove 103 is formed by the sealing surface 102 extending forward beyond the door screen 101 to form an inner peripheral wall 1031; then flat-folded to form an outer wall 1032; An inner wall 1034 is formed; an opening 104 is left between the free end of the inner wall 1034 and the inner peripheral wall 1031 . For the microwave generator assembly whose microwave fundamental wave frequency is 2450MHz, the width of the inner peripheral wall 1031 in this embodiment is selected as 18.5 mm, the width of the outer wall 1032 is selected as 13.75 mm, the width of the outer peripheral wall 1033 is selected as 15.6 mm, and the width of the inner wall 1034 is selected as 9.75 mm; thus the width of the opening 104 The width is 4 mm, and the inner wall 1034 is about 2.9 mm lower than the sealing surface 102 .

Please refer back to FIG. 3 to FIG. 6 , there are multiple cutouts 105 along the inner wall 1034 and the outer peripheral wall 1033 around the choke groove 103 , and the blocking structure is divided into multiple blockings 109 with long and short ones. The distance between the centers of two adjacent slots 105 is between 10 mm and 50 mm, determined by measuring the microwave leakage test of the furnace door from 30 MHz to 18 GHz. The depth of each slot 105 is the same as 10.3 mm, and the width is 7 mm. Two different sizes, mm and 5 mm, are also determined by experiment.

Please refer to Fig. 3 and Fig. 6, the upper side of the door frame 100 is divided into ten blocks 109 by nine cut grooves 105, wherein there are seven long blocks 109 on the right side and three short blocks 109 on the left side. All the parts of the cut grooves 105 located at the peripheral walls 1033 of the choke groove 103 are expanded from their center lines to the peripheral walls 1033 of two adjacent blocks 109 to form rectangular holes 10331, so that the heads of the cut grooves 105 are turned over at the peripheral walls 1033 The rectangular hole 10331 and the tail part of the inner wall 1034 is a T-shaped notch 105 with a strip-shaped notch 1051 . A rectangular punching hole 10335 is added near the inner wall 1034 of the peripheral wall 1033 of each longer blocking 109. The rectangular punching hole 10335 is flush with the rectangular hole 10331, and its width varies with the length of the blocking 109 where it is located. The outer peripheral wall 1033 of each short block 109 is provided with a strip-shaped stamping dimple 10332 that is deeper along the width direction of the outer peripheral wall 1033 to enhance mechanical strength, and the two sides of the outer peripheral wall 1033 of each long block 109 are respectively made with rectangular punching holes 10335 One deep strip-shaped stamping dimple 10332 or a pair of shallow strip-shaped stamping dimples 10333 along the width direction of the outer peripheral wall 1033 to enhance mechanical strength, please refer to FIG. 8 and FIG. 9 . For installing trim panel 16, in each blocking 109, four long blockings 109 have been selected to do pin hole 10334 for inserting trim panel pin 161 on one side of its peripheral wall 1033 rectangular punching hole 10335, the pin hole 10334 both sides and Each of the rectangular holes 10331 or the rectangular punching holes 10335 has a relatively shallow strip punching dimple 10333 .

The lower side of the door frame 100 is symmetrical to the upper side. There is no need to repeat the description.

Please refer to Fig. 3 and Fig. 4, the left side of the door frame 100 is divided into ten blockings 109 by nine cut grooves 105, wherein there are two long blockings 109 in the middle, and four short blockings 109 up and down. The structure of the slot 105 and the structure of the long stopper 109 have been described above. On this side, in order to install the trim panel 16, four short blocks 109 have been selected in each blockage 109 to do the pin hole 10334 of the insert trim panel pin 161 at its peripheral wall 1033, and the pin hole 10334 both sides and the rectangle Each of the holes 10331 has a relatively shallow strip stamping dimple 10333 . In addition, a long blockage 109 has been selected to do the pin hole 10334 for inserting the trim panel pin 161 at its peripheral wall 1033, and its structure is the same as that described above.

Please refer to Fig. 3 and Fig. 5, the right side of door frame 100 is divided into nine blocking 109,109 ', 109 " by eight cut grooves 105 ". Wherein there are three long blocking 109, six short blocking 109 ', 109 ". The upper and lower translation guide blocks 131 corresponding to the door hook 13 at the outer peripheral wall 1033 of the right vertical side of the flow resistance groove 103 periphery are provided with elongated upper and lower translation guide holes 106 near the outer wall 1032, and the upper translation guide holes 106 correspond to two The short blockage 109', the lower translation guide hole 106 corresponds to the three short blockages 109'. The depth of each slot 105 corresponding to the upper and lower translation guide holes 106 is adaptively reduced to 3.1 millimeters. Between the upper and lower translation guide holes 106 on the same vertical side, there is a short blockage 109 "outer wall 1032 punches a gap near the outer peripheral wall 1033 and folds to the outside of the outer peripheral wall 1033 to form a hanging door hook 13 reset The hook 107 of the spring 14. The structure of all each slot 105 is the same as above, but the rectangular hole 10331 of each slot 105 corresponding to the upper and lower translation guide holes 106 is strip-shaped. Note that the upper and lower translation guide holes 106 are included The blockage 109' and the blockage 109" of the hook 107 are not provided with strip-shaped stamping dimples to enhance mechanical strength. The structures of other obstructions 109 are the same as those described above. In order to install the trim panel 16, the vertical edge of this side is selected from each blockage 109 except the blockage 109 ' containing the upper and lower translation guide holes and the blockage 109 " of the hook 107 on the periphery of the choke groove 103. The blockage 109 of the outer peripheral wall 1033 rectangular punching hole 10335 on both sides respectively makes a pin hole 10334 for inserting the interior trim panel pin 161, and there is a respectively between the both sides of the pin hole 10334 and the rectangular hole 10331 or the rectangular punching hole 10335. Shallow strip-shaped punching dimple 10333, please refer to Fig. 5 and Fig. 8; And the other long blocking 109 peripheral wall 1033 rectangular punching hole 10335 both sides make a deeper strip-shaped punching dimple 10332 respectively.

The width of the rectangular hole 10331 and the rectangular punching hole 10335 is generally 10.5 mm. In order to arrange the pin hole 10334 and the shallower strip-shaped stamping dimple 10333 and the deeper strip-shaped stamping dimple 10332 on both sides, in some places the rectangular hole 10331 And the width of the rectangular punching hole 10335 is 9 millimeters, and the width of the rectangular hole 10331 is narrower in some places. In a word, the width of the rectangular hole 10331 and the rectangular punching hole 10335 is determined according to the length of each blocking 109 and the width of the slot 105 .

A plurality of claws are provided near the periphery of the inner surface of the door cover 2 , and each claw is inserted into the corresponding rectangular punching hole 10335 or rectangular hole 10331 of the blocking structure on the edge near the outer wall 1032 . Fit the door cover 2 to the door frame and its blocking structure.

It has been clear from the previous description that the specific positions of the claws of the door panel 2 and the specific positions of the pins 161 of the trim panel 16 are selected after the specific size and position of each blockage 109 are determined. of.

See Figure 2. On the outer wall 1032 around the choke groove 103, there is a bar-shaped hole 108 for auxiliary folding corresponding to the outer wall 1033 of each block 109 except the block 109 with the hook 107 on the edge of the outer wall 1033.

For relatively long blockage 109, strip hole 108 is made into the form of a group 1081 of three strip holes, the rectangular punching hole 10335 facing the blockage 109 in the center, and the deeper one facing the blockage 109 on both sides. The bar-shaped punching socket 10332 or the pin hole 10334; and the bar-shaped holes 108 of the other relatively short blocks 109 are made into a group 1082, facing the center of the block 109.

Claims (8)

1. A microwave oven door with a microwave leakage-proof structure, comprising: a door screen with a window composed of many micro-holes, through which the cooking state of food can be observed; a seal formed along the peripheral area of the door screen surface, which is connected with the entire peripheral area of the front panel formed at the opening of the front end of the microwave oven cooking chamber, for shielding microwave leakage first; Shield the microwave leaking from between the sealing surface and the front panel; the blocking structure is bent from the outer periphery of the sealing surface into a choke groove with a rectangular peripheral section and an opening near the sealing surface; the inner wall and the outer peripheral wall along the periphery of the choke groove There are a plurality of slits, and the blocking structure is divided into multiple blockings; the feature is that: the multiple slits of the blocking structure make the blocking structure divided into multiple blockings with long and short lengths, which can be increased by adjusting the length of each blocking respectively. Wide microwave choke frequency bandwidth. 2. The microwave oven door with a microwave leakage prevention structure according to claim 1, characterized in that: the depth of each cut groove of the blocking structure is the same and the width has at least two different sizes, and the width of each cut groove can be adjusted respectively Further improve the blocking quality within the microwave blocking frequency bandwidth. 3. The microwave oven door with microwave leakage prevention structure according to claim 1 or 2, characterized in that: the periphery of the door screen is stretched backwards and folded to form a rectangular ring-shaped flat sealing surface; The groove is formed by the sealing surface extending forward beyond the door screen to form the inner peripheral wall, which is flat-folded outward to form the outer wall, then extended backward and lower than the sealing surface to form the outer peripheral wall, and finally flat-folded toward the sealing surface to form the inner wall; the free end of the inner wall and the inner peripheral wall Openings are left in between; the part of each cut groove located on the peripheral wall around the choke groove expands from its center line to the adjacent two blocked peripheral walls to form a rectangular hole, so that the cut groove forms the tail of a rectangular hole whose head is turned over on the peripheral wall The inner wall is a T-shaped notch with a strip cut; and a rectangular punching hole is added to the inner wall in the center of the longer blocked outer peripheral wall, and there are reinforced mechanical strengths between the two sides of the rectangular punching hole and the rectangular hole The strip-shaped punching dimples along the width direction of the outer peripheral wall, and the shorter blocked outer peripheral wall has strip-shaped punching dimples along the width direction of the outer peripheral wall to enhance mechanical strength. 4. The microwave oven door with a microwave leakage prevention structure according to claim 3, characterized in that: it also includes an interior trim panel mounted on its rear side to decorate and protect the blocking structure; the perimeter of the interior trim panel Each side is respectively provided with at least two pins extending toward the peripheral wall of the choke groove; among the blockages on the same side of the peripheral wall around the choke groove, inserting inserts are selectively made on a plurality of blocking peripheral walls The pin hole of the trim plate pin; there is a shallow strip stamping dimple between both sides of each pin hole and the rectangular hole or rectangular punching hole; and the other strip stamping dimples made by blocking the peripheral wall are deeper. Strip stamping nest. 5. The microwave oven door with anti-microwave leakage structure according to claim 4, characterized in that: it also includes a door cover installed on its front side for decoration and protection; There are a plurality of claws, and each claw is respectively inserted into the corresponding rectangular punching hole or the edge of the rectangular hole close to the outer wall of the blocking structure. 6. The microwave oven door with a microwave leakage prevention structure according to claim 3, characterized in that: it also includes a belt mounted on one of its side edges to lock it at the front opening of the cooking chamber of the microwave oven after it is closed. For the door hook of the upper and lower translation guide blocks, the upper and lower translation guide blocks are provided with elongated upper and lower bars on the outer peripheral wall of the vertical side of the door hook corresponding to the peripheral wall of the choke groove of the blocking structure. Translation guide holes, and the depth of each slot corresponding to the upper and lower translation guide holes is adaptively reduced; choose a block between the upper and lower translation guide holes on the same vertical side, and punch its outer wall near the outer peripheral wall Make a gap and fold to the outside of the peripheral wall to form a hook for hanging the return spring of the door hook; the blocking peripheral wall containing the upper and lower translation guide holes and the hook does not have a strip-shaped punching dimple along the width direction of the peripheral wall to enhance the mechanical strength . 7. The microwave oven door with a microwave leakage prevention structure according to claim 3, characterized in that: on the outer wall around the choke groove, the folded edge of the outer peripheral wall is provided with auxiliary folding corresponding to each blocked outer peripheral wall strip holes. 8. The microwave oven door with a microwave leakage prevention structure according to claim 7, characterized in that: said strip-shaped holes are formed in groups of three on the outer wall of the longer blockage, and the central one faces the rectangular hole of the blockage. The holes on both sides are respectively facing a deeper strip-shaped stamping socket or pin hole of the blockage; the strip-shaped holes are formed as a group on the outer wall of the shorter blockage, facing the center of the blockage.

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