CN111758005A - heating cooker - Google Patents

Abstract

The door has: an outer frame; a radio wave leakage prevention plate disposed on the rear side of the outer frame; an inner frame which sandwiches the radio wave leakage prevention plate together with the outer frame; and an air inlet for taking in the external air at the lower part of the outer frame. The door has a base plate (15) disposed in the outer frame, a fan (17) disposed in the outer frame, and a first air passage (29) from the fan (17) to the base plate (15). The fan (17) is disposed at a position forward of the radio wave leakage prevention plate. At least a part of the fan (17) is disposed inside the radio wave leakage prevention plate. The suction direction of the air inlet (17a) of the fan (17) is arranged in the direction intersecting with the air inlet of the outer frame, and the direction is the front-back direction of the door in the upright state. The discharge direction of the exhaust port (17b) of the fan (17) is arranged in a direction intersecting the suction direction of the fan (17). Thus, the height of the door can be shortened, and a heating cooker which can be miniaturized can be provided.

Description

heating cooker

technical field

The present invention relates to a heating cooker for heating food in a heating chamber.

Background technique

Conventionally, there has been disclosed a heating cooker having a structure in which a flow path for cooling air is provided on a door on which an operation part is arranged, and the operation part is not thermally affected by the hot air in a high temperature heating chamber (for example, refer to Patent Document 1).

In the heating cooker described in Patent Document 1, a fan is arranged on the flow path of the door through which cooling air flows, and the cooling capacity is improved. The fan includes an intake port and an exhaust port that are arranged substantially vertically in the height direction of the door. Furthermore, the fan sucks in air from below through the intake port, and discharges the air upward from the exhaust port.

However, since the fan is arranged in the height direction of the door, it is necessary to secure a space corresponding to the thickness of the fan in the height direction of the door. Therefore, since the height of the door cannot be shortened, it is difficult to reduce the size of the heating cooker.

prior art literature

Patent Literature

Patent Document 1: Japanese Patent No. 5899452

SUMMARY OF THE INVENTION

The present invention provides a heating cooker that can be miniaturized.

A heating cooker according to one aspect of the present invention includes a heating chamber having an opening, and a door that can openably and closably cover the opening of the heating chamber. The door includes: an outer frame; a radio wave leakage preventing plate attached to the rear side of the outer frame; an inner frame sandwiching the radio wave leakage preventing plate with the outer frame; a suction port provided at the lower part of the outer frame and taking in external air; a base plate of the outer frame; a fan mounted on the outer frame; and a first air path from the fan to the base plate. The fan is disposed forward of the radio wave leakage preventing plate, and at least a part of the fan is disposed inside the radio wave leakage preventing plate when viewed from the back. In addition, the suction direction of the intake port of the fan is arranged in a direction intersecting with the intake port of the outer frame, and this direction is the front-rear direction of the door in the upright state. Moreover, the discharge direction of the exhaust port of a fan is arrange|positioned in the direction which cross|intersects the suction direction of a fan.

Thereby, the heating cooker which can be downsized can be provided.

Description of drawings

Fig. 1 is a front view of the heating cooker according to the embodiment.

Fig. 2 is a front perspective view of the heating cooker.

Fig. 3 is an exploded perspective view of the door of the heating cooker.

Fig. 4 is a rear perspective view of a state in which the inner frame of the door of the heating cooker is removed.

FIG. 5 is a rear perspective view of a state in which a radio wave leakage preventing plate is removed from the door shown in FIG. 4 .

FIG. 6 is a rear perspective view of a state in which the second metal plate is removed from the door shown in FIG. 5 .

FIG. 7 is a rear perspective view of a state in which the first metal plate is removed from the door shown in FIG. 6 .

FIG. 8 is a rear view of a state in which the first metal plate is removed from the door shown in FIG. 6 .

FIG. 9 is a rear perspective view of a state in which the fan case is removed from the door shown in FIG. 7 .

FIG. 10 is a rear view of a state in which the fan case is removed from the door shown in FIG. 7 .

FIG. 11 is an enlarged view of the periphery of the fan shown in FIG. 10 .

Fig. 12 is a diagram illustrating a positional relationship between a radio wave leakage preventing plate and a fan of the door of the heating cooker.

Fig. 13 is a view of the inside of the door of the heating cooker as viewed in a longitudinal section around the fan.

14 is a front perspective view of a fan, a fan case, and a base plate of the heating cooker.

Fig. 15 is a diagram illustrating an air passage of the heating cooker.

Detailed ways

Hereinafter, embodiments of the present invention will be described in detail based on the drawings. In addition, this invention is not limited to this embodiment.

(Embodiment)

Next, the heating cooker according to the embodiment of the present invention will be described with reference to FIGS. 1 and 2 .

FIG. 1 is a front view of the heating cooker 1 according to the embodiment. FIG. 2 is a front perspective view of the heating cooker 1 in a state where the door 7 is opened. In addition, in the following description, the X direction is the longitudinal direction (width direction or the left-right direction) of the heating cooker 1, the Y direction is the front-rear direction, and the Z direction is the height direction. In addition, in the following description, height means the distance from the mounting surface of the heating cooker 1.

As shown in FIGS. 1 and 2 , the heating cooker 1 of the present embodiment includes a casing 3 , a heating chamber 5 , a door 7 , and the like arranged in the casing 3 . The door 7 includes an outer frame 13 which covers an opening 3b opened in the front frame 3a serving as the front surface of the casing 3 so as to be openable and closable.

The heating chamber 5 is a space surrounded by an upper wall 5a arranged at an upper portion, side walls 5b and 5c arranged at both sides, a rear wall (not shown) arranged at a rear portion, and a bottom wall 5e arranged at a lower portion. constitute. The heating chamber 5 is provided with a microwave radiation port (not shown) for radiating microwaves. And the heating cooker 1 is comprised so that the to-be-heated object (food) mounted in the heating chamber 5 is induction-heated by the microwave radiated from a microwave radiation port.

Moreover, the heating chamber 5 is equipped with the steam blower outlet (not shown) in the upper part. Thereby, the steam generated by the steam generator (not shown) is supplied into the heating chamber 5 .

The door 7 has a horizontal rotation center on the lower side of the opening 3b. Thereby, the door 7 is attached to the casing 3 so as to be openable and closable about the rotation center as the rotation axis. The door 7 includes a handle 7 a attached to the upper portion of the outer frame 13 . When the user pulls the handle 7a forward and downward, the door 7 is rotated and operated to be in a horizontal state, and the heating chamber 5 is opened. In addition, the user closes the heating chamber 5 by rotating the door 7 to be in a vertical state.

The outer frame 13 of the door 7 has the display part 9 and the operation part 11 etc. which are arrange|positioned near the other side (right side) in the longitudinal direction (X direction) when viewed from the front. The display unit 9 is constituted by, for example, a liquid crystal screen or the like, and displays a menu screen or the like. The operation unit 11 includes functions such as buttons and knobs, for example. The user can set various cooking instructions and the like to the heating cooker 1 using the operation unit 11 . In the following, when the heating cooker 1 is viewed from the front, one side in the longitudinal direction is referred to as the left side, and the other side is referred to as the right side.

Next, the structure of the door 7 will be described with reference to FIG. 3 .

FIG. 3 is an exploded perspective view of the door 7 . In addition, when describing the positional relationship of the components of the door 7 below, the positional relationship in the state in which the door 7 is arrange|positioned in the upright state in the Z direction is demonstrated.

As shown in FIG. 3 , the door 7 includes the outer frame 13 , the display unit 9 , the substrate 15 , the fan 17 , the fan case 19 , the first metal plate 21 and the second Two metal plates 23, a radio wave leakage preventing plate 25, an inner frame 27, and the like. That is, the door 7 includes at least the above-described constituent members.

Electronic components that control the display unit 9 , the operation unit 11 , and the like are arranged on the substrate 15 . Furthermore, a heat generating body (not shown) that generates heat during operation is arranged on the substrate 15 . The heat generating body is, for example, a microcomputer or the like.

The fan 17 plays a role of sucking outside air (outside air) into the door 7 and sending it out of the door 7 . Thereby, the substrate 15 raised by the heat from the heating chamber 5 is cooled. The fan 17 is arranged forward (-Y direction) than the radio wave leakage preventing plate 25 .

The fan case 19 covers the rear of the substrate 15 and the fan 17 , and forms an air passage through which the cooling air generated by the fan 17 flows.

The first metal plate 21 is arranged behind the base plate 15 with the fan case 19 interposed therebetween. The first metal plate 21 has a function of insulating the heat transferred from the heating chamber 5 to the substrate 15 .

The second metal plate 23 is arranged to cover the rear surface of the first metal plate 21 . Like the first metal plate 21 , the second metal plate 23 also has a function of insulating the heat transferred from the heating chamber 5 to the substrate 15 .

The radio wave leakage preventing plate 25 is formed of, for example, a metal plate such as hot dip galvanized steel sheet or aluminized steel sheet, and is attached to the rear side of the outer frame 13 . The radio wave leakage preventing plate 25 prevents radio waves (microwaves) from leaking from the inside of the heating chamber 5 to the outside through the door 7 .

The inner frame 27 is attached to the rear side of the radio wave leakage preventing plate 25 . At this time, the inner frame 27 is arranged so that the radio wave leakage preventing plate 25 is sandwiched between the inner frame 27 and the outer frame 13 .

Next, the structure of the door 7 will be further described with reference to FIGS. 4 to 6 .

FIG. 4 is a rear perspective view of a state in which the inner frame 27 of the door 7 is removed. FIG. 5 is a rear perspective view of a state in which the radio wave leakage preventing plate 25 is removed from the door 7 shown in FIG. 4 . FIG. 6 is a rear perspective view of a state in which the second metal plate 23 is removed from the door 7 shown in FIG. 5 .

As shown in FIG. 4 , the radio wave leakage preventing plate 25 is arranged inside the outer frame 13 along the outer edge of the outer frame 13 .

As shown in FIG. 5 , the second metal plate 23 is arranged on the other side (right side) in the longitudinal direction (X direction) of the outer frame 13 . The second metal plate 23 is located behind the substrate 15 and is disposed between the heating chamber 5 and the first metal plate 21 in the front-rear direction (Y direction).

As shown in FIG. 6 , the first metal plate 21 is located behind the base plate 15 , and is disposed between the second metal plate 23 and the fan casing 19 in the front-rear direction (Y direction).

Next, the structure of the door 7 will be described with reference to FIGS. 7 and 8 .

FIG. 7 is a rear perspective view of a state in which the first metal plate 21 is removed from the door 7 shown in FIG. 6 . FIG. 8 is a rear view of a state in which the first metal plate 21 is removed from the door 7 shown in FIG. 6 .

As shown in FIG. 7 , the fan case 19 is located behind the base plate 15 , and is disposed between the base plate 15 and the second metal plate 23 in the front-rear direction (Y direction).

The fan casing 19 is provided with the hole 19a which is a through-hole in the inner side (left side) vicinity of the upper part side. The hole 19a is formed by, for example, a long hole extending in the up-down direction (Z direction). Two holes 19a are formed in parallel in the vertical direction in the fan casing 19. As shown in FIG. At the rear of the hole 19a, a cover 19c of, for example, an L-shape is attached to the fan casing 19, which opens to the front side and the outer side (right side) in the longitudinal direction of the door 7. As shown in FIG. The cover 19 c functions to change the direction of the cooling air flowing backward from the base plate 15 so as to flow outward on the rear surface of the fan casing 19 .

In addition, the fan case 19 has a plurality of upper holes 19b formed along the longitudinal direction of the door 7 in the vicinity of the upper portion. Thereby, the cooling air flowing from the lower end to the upper end of the base plate 15 flows into the rear surface of the fan casing 19 through the upper hole 19b.

In addition, on the other side (right side) in the longitudinal direction (X direction) of the door 7 and in the vicinity of the outer side (right side) on the lower side of the fan casing 19, a wall 19d protruding rearward (Y direction) is disposed . Thereby, the cooling air which flows toward the outer side from the cover 19c can be reflected by the wall 19d, and the direction can be changed toward an inner side.

Next, the structure of the door 7 will be further described with reference to FIGS. 9 and 10 .

FIG. 9 is a rear perspective view of a state in which the fan case 19 is removed from the door 7 shown in FIG. 7 . FIG. 10 is a rear view of a state in which the fan case 19 is removed from the door 7 shown in FIG. 7 .

As shown in FIGS. 9 and 10 , the outer frame 13 of the door 7 has an intake port 13a that is formed at the lower portion of the other side (right side) in the longitudinal direction (X direction) and takes in outside air. Furthermore, the display unit 9 and the substrate 15 are attached to the outer frame 13 . Moreover, in the vicinity of the lower part of the other side of the longitudinal direction of the outer frame 13, the fan 17 is arrange|positioned above the air inlet 13a.

Next, the peripheral structure of the fan 17 will be described with reference to FIG. 11 . FIG. 11 is an enlarged view of the periphery of the fan 17 shown in FIG. 10 .

As shown in FIG. 11 , the fan 17 has an intake port 17a and an exhaust port 17b. The opening of the intake port 17a is provided toward the front-rear direction (Y direction) of the door 7 . On the other hand, the opening of the exhaust port 17b of the fan 17 is provided toward the upper direction (Z direction) of the door 7 .

As a result, the intake port 17a of the fan 17 for sucking in the external air is arranged such that the intake direction is the front-rear direction (Y direction) of the door 7 in the upright state, that is, the direction intersecting the intake port 13a of the outer frame 13 (see Figure 13). In addition, the suction direction of the fan 17 may be perpendicular to the intersecting direction of the suction port 13a. On the other hand, the exhaust port 17b of the fan 17 is arranged so that the discharge direction is a direction intersecting the suction direction of the intake port 17a. In addition, the intersecting direction of the discharge direction of the intake port 17a of the fan 17 and the intake direction of the exhaust port 17b of the fan 17 may be perpendicular. Therefore, the rotation shafts of the blades of the fan 17 are arranged in the front-rear direction (Y direction). In addition, as the fan 17, a sirocco fan etc. are illustrated, for example.

In addition, the outer frame 13 includes a first partition wall 13c and a second partition wall 13d which are provided to extend rearward (in the Y direction) from the rear surface of the outer frame 13 . And the groove 13b is formed by the 1st partition wall 13c, the 2nd partition wall 13d, and the rear wall 13e which is a part of the rear surface of the outer frame 13. The groove 13b extends upward from the exhaust port 17b of the fan 17 .

Next, the positional relationship between the radio wave leakage preventing plate 25 and the fan 17 will be described with reference to FIG. 12 .

FIG. 12 is a diagram illustrating the positional relationship between the radio wave leakage preventing plate 25 of the door 7 of the heating cooker 1 and the fan 17 .

As shown in FIG. 12 , at least a part of the fan 17 is arranged inside the radio wave leakage preventing plate 25 and is covered by the radio wave leakage preventing plate 25 when viewed from the back. Specifically, the fan 17 is configured such that, for example, the upper portion including the exhaust port 17b and the vicinity of the central portion enter the inside of the radio wave leakage preventing plate 25. And the lower part of the fan 17 is arrange|positioned so that it may protrude downward from the lower edge part 25a of the radio wave leakage preventing plate 25. With this arrangement, it is not necessary to arrange the intake port and the exhaust port in the vertical direction as in the conventional fan structure, so that the length (dimension) of the door 7 in the height direction can be shortened.

Next, the air passage of the cooling air flowing from the fan 17 will be described with reference to FIGS. 13 to 15 .

13 : is the figure which looked at the inner side of the door 7 from the longitudinal cross-section of the periphery of the fan 17. As shown in FIG. FIG. 14 is a front perspective view of the fan 17 , the fan case 19 , and the base plate 15 . FIG. 15 is a diagram illustrating an air passage. In addition, in FIG. 15, the fan case 19 is shown by a broken line, and it is shown in the state which sees through the inside.

As shown in FIG. 14, the fan casing 19 further includes an outer side wall 19e, a partition wall 19g, a hole 19h, and a front wall 19k. The outer side wall 19e is extended forward (-Y direction) from the inner side (left side) edge part of the front surface of the fan case 19. As shown in FIG. The partition wall 19g is provided to extend forward (-Y direction) in parallel with the outer side wall 19e on the outer side (right side) of the outer side wall 19e. The hole 19h is opened at a position corresponding to the branch point of the first air passage 29 and the second air passage 31 constituting the air passage described later in the partition wall 19g. The front wall 19k is constituted by a part of the front surface of the fan casing 19 . The groove 19m is formed by the outer side wall 19e, the partition wall 19g, and the front wall 19k. Specifically, the groove 19m extends upward from the exhaust port 17b of the fan 17 .

Furthermore, the grooves 13b of the outer frame 13 and the grooves 19m of the fan casing 19 are fitted in the front-rear direction (Y direction). Thereby, the air passage in which the external air discharged from the exhaust port 17b of the fan 17 flows upward (Z direction) in the fan casing 19 is formed. At this time, the hole 19h formed in the partition wall 19g of the fan case 19 becomes a branch point of the first air passage 29 and the second air passage 31 . Thereby, a part of cooling air flows to the board|substrate 15 through the hole 19h. On the other hand, the cooling air flowing toward the upper side of the fan casing 19 without passing through the hole 19 h passes through the second air passage 31 .

Hereinafter, the air passage formed in the door 7 will be described in detail.

First, the outside air shown by the arrow AA taken in from the intake port 13a (see FIG. 13 ) of the outer frame 13 passes through the intake port 19f ( Referring to FIGS. 11 and 13 ), it is sucked from the air inlet 17a of the fan 17 . At this time, the outside air taken in from below the fan 17 goes back to the fan 17 as indicated by the arrow BB, is sucked through the intake port 17a, and is discharged from the exhaust port 17b as indicated by the arrow CC.

The cooling air discharged from the exhaust port 17b in the upper part of the fan 17 flows upward along the grooves 13b constituting the air passage. At this time, as shown in FIG. 14 , in the middle of the air passage flowing upward along the groove 13b of the outer frame 13, the first air passage 29 for branching the cooling air toward the substrate 15 side is formed through the hole 19h formed in the partition wall 19g. . Therefore, the cooling air flowing on the substrate 15 along the first air passage 29 flows toward the upper hole 19b of the fan case 19 as indicated by the arrow DD in FIG. 15 . The cooling air that has passed through the upper hole 19b flows on the rear surface side of the fan casing 19 along the third air passage 33 shown in FIGS. 8 and 15 . Furthermore, as shown in FIG. 8 , the third air passage 33 is connected to the fourth air passage 35 flowing between the fan case 19 and the first metal plate 21 .

On the other hand, the cooling air branched from the first air passage 29 and flowing further upward along the groove 13b of the outer frame 13 follows the second air passage passing through the hole 19a (see FIGS. 7 and 15 ) of the fan casing 19 31 flows on the rear surface side of the fan casing 19 . Furthermore, it is connected with the 4th air path 35 (refer FIG. 8) which flows between the fan case 19 and the 1st metal plate 21.

As described above, air passages including, for example, the first air passages 29 to the fourth air passages 35 are formed inside the door 7 . Furthermore, the outside air sucked in via the fan 17 flows in the fan case 19 along the air passage, and cools the substrate 15 and the like.

As mentioned above, the heating cooker 1 of this invention includes the heating chamber 5 which has the opening 3b, and the door 7 which covers the opening 3b of the heating chamber 5 so that opening and closing is possible. The door 7 includes: an outer frame 13; a radio wave leakage preventing plate 25 attached to the rear side of the outer frame 13; an inner frame 27 sandwiching the radio wave leakage preventing plate 25 with the outer frame 13; The gas suction port 13a. Furthermore, the door 7 includes: the base plate 15 attached to the outer frame 13 ; the fan 17 attached to the outer frame 13 ; and the first air passage 29 from the fan 17 to the base plate 15 . The fan 17 is arranged in front of the radio wave leakage preventing plate 25 . At least a part of the fan 17 is arranged inside the radio wave leakage preventing plate 25 when viewed from the back. Furthermore, the suction direction of the intake port 17a of the fan 17 is arranged in a direction intersecting the intake port 13a of the outer frame 13, which is the front-rear direction of the door 7 in the upright state. Moreover, the discharge direction of the exhaust port 17b of the fan 17 is arrange|positioned in the direction which cross|intersects the suction direction of a fan.

According to the configuration of the heating cooker 1 described above, the following effects can be obtained.

First, the heating cooker 1 of this invention is arrange|positioned so that the suction direction 17b of the intake port 17a of the fan 17 differs from the discharge direction of the exhaust port 17b. Thereby, since the direction of the external air to be taken in is changed to, for example, a direction orthogonal to, the intake of the external air can be eased. As a result, for example, the steam discharged from other cookers or water heaters such as a rice cooker arranged below the heating cooker 1 can be suppressed from entering the heating cooker 1 . In addition, a part of the fan 17 is arranged inside the radio wave leakage preventing plate 25 . Thereby, the height dimension of the door 7 can be shortened. As a result, the miniaturization of the heating cooker 1 can be achieved.

Moreover, the heating cooker 1 of this invention is provided with the fan case 19 which covers the fan 17 and the board|substrate 15, and the outer frame 13 has the groove|channel 13b formed by the 1st partition 13c and the 2nd partition 13d which comprise a partition inside. The first air passage 29 is formed by the groove 13 b of the outer frame 13 and the fan case 19 . That is, the first air passage 29 constituting the air passage from the fan 17 to the base plate 15 is formed by the fan case 19 and the grooves 13 b of the outer frame 13 . Therefore, the outside air sucked in from the intake port 13 a of the outer frame 13 is appropriately sent to the substrate 15 . Thereby, the substrate 15 can be efficiently cooled by the outside air.

In addition, the fan case 19 of the heating cooker 1 of the present invention has a hole 19a that constitutes a through hole formed in the rear of the groove 13b of the outer frame 13, and the second air reaches the rear surface of the fan case 19 from the fan 17 through the hole 19a. The path 31 is formed by the groove 13b of the outer frame 13 and the fan case 19 . That is, the fan casing 19 is formed with the hole 19a constituting the through hole. Thereby, the second air passage 31 constituting the air passage from the fan 17 through the hole 19a to the rear surface of the fan casing 19 is formed. As a result, the rear surface of the fan casing 19 can be efficiently cooled.

Further, the fan casing 19 of the heating cooker 1 of the present invention includes an upper hole 19b formed above the base plate 15 and a third air passage 33 that reaches the rear surface of the fan casing 19 from the base plate 15 through the upper hole 19b. That is, the third air passage 33 is formed, and the third air passage 33 constitutes an air passage through which the cooling air that has cooled the substrate 15 reaches the rear surface of the fan case 19 through the upper hole 19b of the fan case 19 . Thereby, the rear surface of the fan case 19 can be cooled efficiently.

Further, the door 7 of the heating cooker 1 of the present invention includes: a first metal plate 21 constituting a metal plate covering at least a part of the rear side of the fan case 19 ; and the rear surface of the fan case 19 and the first metal plate 21 The fourth air passage 35 between the front surfaces. That is, the cooling air that has passed through the third air passage 33 reaching the rear surface of the fan case 19 passes through the fourth air passage 35 constituting the air passage between the rear surface of the fan case 19 and the first metal plate 21 . Thereby, the first metal plate 21 is cooled. As a result, the heat insulating effect of the first metal plate 21 with respect to the substrate 15 is further enhanced. Further, an air curtain is formed between the fan case 19 and the first metal plate 21 by the fourth air passage 35 . Thereby, the heat transferred to the first metal plate 21 can be absorbed by the cooling air. As a result, the function of the first metal plate 21 as a heat insulating plate is further improved, and heat transfer to the fan casing 19 can be effectively reduced.

Moreover, the board|substrate 15 of the heating cooker 1 of this invention is equipped with the heat generating body which generates heat during operation, and the heat generating body is arrange|positioned on the 1st air path 29. As shown in FIG. Thereby, the heat generating body can be efficiently cooled by the cooling air flowing in the first air passage 29 .

In addition, by appropriately combining any of the above-described various embodiments and modified examples, the respective effects can be exhibited.

The present invention has been fully described in relation to the preferred embodiments with reference to the accompanying drawings, but various modifications and corrections will be apparent to those skilled in the art. Such a deformation|transformation and correction should be construed as being included in it unless it deviates from the scope of the present invention of the appended claims. Furthermore, changes in the combination and order of elements in each embodiment may be implemented without departing from the scope and spirit of the invention.

As described above, the heating cooker according to one embodiment of the present invention includes a heating chamber having an opening, and a door that can openably and closably cover the opening of the heating chamber. The door includes: an outer frame; a radio wave leakage preventing plate attached to the rear side of the outer frame; an inner frame sandwiching the radio wave leakage preventing plate with the outer frame; Furthermore, the door includes: a board attached to the outer frame; a fan attached to the outer frame; and a first air passage from the fan to the board. The fan is arranged in front of the radio wave leakage preventing plate. When viewed from the back, at least a part of the fan is arranged inside the radio wave leakage preventing plate. In addition, the suction direction of the intake port of the fan is arranged in a direction intersecting with the intake port of the outer frame, and this direction is the front-rear direction of the door in the upright state. Moreover, the discharge direction of the exhaust port of a fan is arrange|positioned in the direction which cross|intersects the suction direction of a fan.

In addition, a fan case covering the fan and the substrate is provided, and the outer frame has a groove formed by a partition wall inside. In addition, the first air passage may be formed by the groove of the outer frame and the fan case.

Further, the fan case may have a through hole formed behind the groove of the outer frame, and the second air passage from the fan to the rear surface of the fan case through the through hole may be formed by the groove of the outer frame and the fan case.

In addition, the fan case may include an upper hole formed above the base plate, and the door may include a third air passage that reaches the rear surface of the fan case from the base plate through the upper hole.

In addition, the door may include a metal plate covering at least a part of the rear side of the fan case, and a fourth air passage between the rear surface of the fan case and the front surface of the metal plate.

In addition, the substrate may be provided with a heat generating body that generates heat during operation, and the heat generating body may be arranged on the first air passage.

Industrial Availability

The present invention can be used as a heating cooker such as a high-frequency heating cooker, a high-frequency heating cooker with a steam generator, a high-frequency heating cooker with a heater, and the like.

Label description

1: heating cooker

3 shell

3a Front frame

3b opening

5 Heating chamber

5a Upper wall

5b, 5c Sidewalls

5e bottom wall

7 doors

9 Display

11 Operation section

13 Frame

13a, 17a, 19f Suction port

13b, 19m slot

13c First Next Door (Next Door)

13d Second Next Door (Next Door)

13e rear wall

15 Substrate

17 Fan

17b Exhaust port

19 Fan housing

19a hole (through hole)

19b upper hole

19c hood

19d wall

19e Outer Wall

19g next door

19h hole

19k front wall

21 The first metal plate (metal plate)

23 Second metal plate (metal plate)

25 Radio wave leakage prevention plate

25a Lower edge

27 inner frame

29 The first wind path (wind path)

31 Second wind path (wind path)

33 The third wind path (wind path)

35 Fourth wind path (wind path).

Claims (6)

1. A heating cooker comprising: a heating chamber having an opening; and a door openably and closably covering the opening of the heating chamber; The door has: outer frame; an electric wave leakage preventing plate installed on the rear side of the outer frame; an inner frame sandwiching the radio wave leakage preventing plate together with the outer frame; an air inlet, which is arranged at the lower part of the outer frame and takes in external air; a substrate mounted on the outer frame; a fan mounted to the outer frame; and the first air path from the fan to the base plate, The fan is arranged forward of the radio wave leakage preventing plate, At least a part of the fan is arranged inside the radio wave leakage preventing plate when viewed from the back, The intake direction of the intake port of the fan is arranged in a direction intersecting the intake port of the outer frame, and this direction is the front-rear direction of the door in the upright state, The discharge direction of the exhaust port of the said fan is arrange|positioned in the direction which crosses the said suction direction of the said fan. 2. The heating cooker according to claim 1, wherein The heating cooker includes a fan casing covering the fan and the base plate, The outer frame has a groove formed by the partition wall inside, The first air path is formed by the groove of the outer frame and the fan casing. 3. The heating cooker according to claim 2, wherein The fan casing has a through hole formed behind the groove of the outer frame, A second air route from the fan to the rear surface of the fan case through the through hole is formed by the groove of the outer frame and the fan case. 4. The heating cooker according to claim 2 or 3, wherein The fan casing has an upper hole formed above the base plate, The door has a third air passage that reaches the rear surface of the fan case from the base plate through the upper hole. 5. The heating cooker according to claim 3 or 4, wherein The door has: a metal plate covering at least a portion of the rear side of the fan housing; and The fourth air passage between the rear surface of the fan case and the front surface of the metal plate. 6. The heating cooker according to any one of claims 1 to 5, wherein The base plate is equipped with a heating element that generates heat during operation, The heat generating body is arranged on the first air passage.

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