CN110213847B - Heating cooker - Google Patents

Abstract

Provided is a heating cooker provided with: a rear wall disposed at the rear of the heating chamber; a water receiving part (27) which is extended in the length direction and receives the water falling downwards along the rear wall; a lateral flow trough part (31) which is arranged below one end part (27d) of the water receiving part (27) and has a downward inclination angle towards the front. The water receiving part (27) is provided with a groove (27b) for guiding water to one end part (27d), and the transverse flow groove part (31) is provided with a 1 st transverse flow groove part (33) arranged below the one end part (27d) of the water receiving part (27) and a 2 nd transverse flow groove part (35) extending forwards from the front end of the 1 st transverse flow groove part (33). Moreover, the inclination angle of the 1 st cross flow groove part (33) is larger than that of the 2 nd cross flow groove part (35). Thus, water flowing out of the water receiving part (27) for receiving water flowing down from the rear wall can be properly guided to the tray.

Description

Heating cooker

Technical Field

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

Background

Conventionally, steam generated in a heating chamber of a heating cooker may cause water droplets to be generated on a wall surface of the heating chamber. Generally, the steam in the heating chamber is generated from the food placed in the heating chamber.

Further, japanese patent application laid-open No. 2008-14618 (hereinafter, referred to as "patent document 1") describes a heating cooker including a steam generator, and steam is supplied from the steam generator into a heating chamber.

The heating cooker described in patent document 1 includes a partition plate that partitions a heating chamber and a heat source chamber that houses a circulation fan and a heat source. And a water receiving member is provided directly below the partition plate. Thus, the condensed water condensed on the back surface of the separator falls and is received by the water receiving member. The dew-condensed water caught by the water receiving part is guided to the longitudinal and lateral flow groove parts to be accumulated in the accumulating part.

However, in the conventional cooking device, when the amount of steam in the heating chamber is large, water tends to accumulate in the lateral flow channel member that receives the water falling from the vertical flow channel member. Thus, water may overflow from the lateral flow channel member.

Disclosure of Invention

The invention provides a heating cooker, which properly guides water flowing out from a water receiving part for receiving water flowing down along the rear wall of a heating chamber to a tray.

One embodiment of the present invention is a heating cooker having a heating chamber. A heating cooker is provided with: a rear wall disposed at a rear portion of the heating chamber; a water receiving part which is extended in the length direction and receives water falling down along the rear wall; and a lateral flow channel part which is arranged below one end part of the water receiving part and has an inclination angle towards the front and downwards. The water receiving part is provided with a groove for guiding water to one end part, and the transverse flow groove part is provided with: a 1 st cross flow trough part arranged below one end part of the water receiving part; and a 2 nd cross flow groove part extending forward from the front end of the 1 st cross flow groove part. Moreover, the inclination angle of the 1 st cross flow groove section is larger than that of the 2 nd cross flow groove section.

Thus, the cooking device can be provided, and water flowing out from the water receiving portion that receives water flowing down along the rear wall of the heating chamber can be appropriately guided to the tray.

Drawings

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

Fig. 2 is a front view of the heating cooker in a state where the door is opened.

Fig. 3 is a side view of the heating cooker in a state where the door is opened.

Fig. 4 is a front perspective view of the periphery of the heating chamber of the heating cooker.

Fig. 5 is a front view of the rear wall of the heating chamber to which the fan housing is attached.

Fig. 6 is a front perspective view of the fan housing.

Fig. 7 is a partial perspective view of the lower front of the fan housing.

Fig. 8 is a partial longitudinal cross-sectional view of the periphery of a joint portion of the water receiving portion of the heating cooker.

Fig. 9 is a front view of the lower portion of the fan housing.

Fig. 10 is a plan view of the water receiving portion.

Fig. 11 is an enlarged plan view of the other end (right side) of the water receiving portion.

Fig. 12 is a front perspective view of the periphery of one side (left side) end of the water receiving portion.

Fig. 13 is a plan view of the water receiving portion bottom plate.

Fig. 14 is a plan view of the periphery of the lateral spout portion of the water receiving portion.

Fig. 15 is a plan view of the periphery of the lateral runner portion in the state where the bottom plate is removed in fig. 14.

FIG. 16 is a view from the inside of a cross-sectional view of the cross-flow channel section taken along line 16-16 of FIG. 14.

Fig. 17 is a front perspective view of the periphery of the front end of the cross flow groove portion.

Fig. 18 is a front perspective view of the periphery of the notch of the water receiving portion.

Fig. 19 is a front perspective view showing a flow path of water from the notch of the water receiving portion to the 2 nd tray housing portion.

Fig. 20 is a front perspective view showing a guide portion that receives water falling from a notch of the water receiving portion.

Fig. 21 is a front perspective view of the periphery of the 2 nd tray of the heating cooker.

Detailed Description

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The present invention is not limited to the embodiment.

(embodiment mode)

A heating cooker according to an embodiment of the present invention will be described below with reference to fig. 1 to 4.

Fig. 1 is a front perspective view of a heating cooker 1 according to the embodiment. Fig. 2 is a front view of the heating cooker 1 in a state where the door 7 is opened. Fig. 3 is a side view of the heating cooker 1 in a state where the door 7 is opened. Fig. 4 is a front perspective view of the periphery of the heating chamber 5. In the following description, the X direction in the front view is the longitudinal direction (left-right direction) of the heating cooker 1, the Y direction is the front-back direction, and the Z direction is the height direction. In the following description, the height refers to a distance from a mounting surface of the heating cooker 1.

As shown in fig. 1 to 4, a heating cooker 1 of the present embodiment includes a housing 3, a heating chamber 5 disposed in the housing 3, a door 7, and the like, and the door 7 openably and closably covers an opening 3b opened in a front frame 3a on a front surface of the housing 3.

The heating chamber 5 is formed by a space surrounded by: an upper wall 5a disposed at the upper portion, and side walls 5b and 5c disposed at both side portions; a rear wall 5d disposed at the rear; and a bottom wall 5e disposed at the lower portion. The heating chamber 5 has a microwave radiation port (not shown) for radiating microwaves. The heating cooker 1 is configured to dielectrically heat an object to be heated (food) placed in the heating chamber 5 by microwaves emitted from the microwave radiation ports. The heating chamber 5 has a steam outlet (not shown) at the top. Thereby, the steam generated by the steam generator 16 is supplied into the heating chamber 5.

The door 7 has a rotation center in the horizontal direction on the lower side of the opening 3 b. Thus, the door 7 is attached to the housing 3 so as to be openable and closable with the rotation center as a rotation axis. The door 7 includes a handle 7a mounted at an upper portion. The user pulls the lower handle 7a forward and downward to rotate the door 7 so that the door 7 is horizontal. Thereby, the heating chamber 5 is opened. Further, the user rotates the door 7 so that the door 7 is in the vertical state, thereby closing the heating chamber 5.

The door 7 includes a display unit 9 and an operation unit 11 disposed in the vicinity of the right side in front view. The display unit 9 is configured by, for example, a liquid crystal screen, and displays a menu screen or the like. The operation section 11 includes functions such as buttons and dials. The user can set various cooking instructions and the like for the heating cooker 1 using the operation unit 11.

The frame body 3 is coupled to the lower frame 49 at the lower end. The 1 st tray 13 and the 2 nd tray 15, which are detachable in the front-rear direction, are disposed on the lower frame 49. The 1 st tray 13 and the 2 nd tray 15 are arranged side by side in the longitudinal direction (X direction). For example, the 1 st tray 13 is disposed on one side (left side) in the longitudinal direction, and the 2 nd tray 15 is disposed on the other side (right side) in the longitudinal direction. The 1 st tray 13 is a tray for accumulating water droplets condensed in the heating cooker 1, for example. The 2 nd tray 15 accommodates a water supply tank 14 (see fig. 21) that supplies water to the steam generator 16 (see fig. 2). Meanwhile, the 2 nd tray 15 has a water storage portion 15a (see fig. 21) for storing water droplets condensed in the housing 3. Hereinafter, description will be given assuming that one side in the longitudinal direction is the left side and the other side is the right side in the front view of the heating cooker 1.

Next, the structure of rear wall 5d and fan case 21 of cooking device 1 will be described with reference to fig. 5 and 6. Fig. 5 is a front view of the rear wall 5d of the heating chamber 5 to which the fan housing 21 is attached. Fig. 6 is a front perspective view of the fan housing 21.

As shown in fig. 5 and 6, a fan case 21 is disposed behind the rear wall 5d of the heating chamber 5, and the fan 17, the sheath heater 23, and the like are disposed in the fan case 21. The rear wall 5d has a plurality of air intake holes 19 and air exhaust holes 20 opened to circulate air in the heating chamber 5 by the fan 17.

Fan case 21 has a recess 21a, a lower wall 21b, and the like. The recess 21a is formed to be recessed rearward and rotatably supports the fan 17. Lower wall 21b stands from recess 21a and is formed flat at the lower portion of fan housing 21. The fan case 21 covers the rear side of the circulation fan 17 and is attached to the rear wall 5d of the heating chamber 5.

The sheath heater 23 is disposed along the rotation direction of the fan 17 on the outer periphery of the fan 17 in the recess 21 a. When the fan 17 is rotationally driven, air of the heating chamber 5 is sucked toward the rear from the air intake holes 19 of the rear wall 5 d. The sucked air is heated by the sheath heater 23, turned around in the fan case 21 (see fig. 6), passes through the air discharge hole 20 of the rear wall 5d in the forward direction, and returns to the heating chamber 5. That is, the heating cooker 1 of the present embodiment constitutes a convection heater by the fan 17 and the sheath heater 23.

The fan case 21 has leg portions 24, and the leg portions 24 are attached to lower end portions of both side portions. The height from each leg 24 to the lower end is the same as the height from the front frame 3a to the lower end (see fig. 4).

Next, the structure of water receiving unit 27 of cooking device 1 will be described with reference to fig. 7. Fig. 7 is a partial perspective view of the lower front of the fan housing 21.

As shown in fig. 7, fan case 21 includes water receiving portion 27, and water receiving portion 27 is attached to a lower portion of fan case 21 to guide water falling due to dew condensation. Water receiving portion 27 is made of a metal such as a hot-dip galvanized steel sheet or a plated steel sheet, and is formed as a member separate from fan case 21.

Water receiving portion 27 includes a flat portion 27a, a groove 27b, and the like, and extends in the longitudinal direction (X direction) of fan housing 21. The flat portion 27a is disposed parallel to the lower wall portion 21b of the fan housing 21. The groove 27b extends downward from the flat portion 27a and is formed by bending forward.

Next, the structure of water receiving unit 27 will be described in detail with reference to fig. 8. Fig. 8 is a partial longitudinal sectional view of the periphery of the joint 29 of the water receiving portion 27.

As shown in fig. 8, the cross section of the groove 27b of the water receiving portion 27 is formed in a V-shape or a concave shape. When the groove 27b has a V-shape, the water droplets are collected at the bottom of the groove 27b, and therefore, the flow velocity of the water flowing through the groove 27b is increased. Further, water can be prevented from overflowing from the groove 27 b. The groove 27b of the water receiving portion 27 is disposed forward of the flat portion 27 a. Therefore, the water falling from the rear wall 5d to the groove 27b is guided in the longitudinal direction (X direction) in front of the fan housing 21.

The bottom wall 5e of the heating chamber 5 has a flange portion 25, and the flange portion 25 is bent downward from a rear edge portion of the bottom wall 5e and extends. The flange portion 25 abuts against the lower end portion of the rear wall 5 d. In this case, flat portion 27a of water receiving portion 27 is disposed parallel to flange 25 of bottom wall 5e of heating chamber 5, similarly to lower wall portion 21b of fan casing 21 described above.

As shown in fig. 8, in heating cooker 1 of the present embodiment, flange 25, the lower end portion of rear wall 5d, lower wall portion 21b of fan housing 21, and flat portion 27a of water receiving portion 27 are coupled to each other via coupling portion 29. The coupling portion 29 couples the respective members by caulking, for example. The joint 29 may be joined by, for example, a bolt and a nut, in addition to caulking. In fig. 8, caulking is omitted for easy understanding of the cross-sectional shape.

As described above, water receiving unit 27 is formed of a member separate from fan case 21, but is integrally coupled to fan case 21 via coupling unit 29. This simplifies assembly of the heating cooker 1. Water receiving unit 27 may be integrally formed with fan case 21. This can simplify the assembly of the heating cooker 1.

Flat portion 27a of water receiving portion 27 is disposed behind flange portion 25, the lower end portion of rear wall 5d, and lower wall portion 21b of fan case 21, and is coupled thereto by coupling portion 29. The leg portion 24 is disposed at the flange portion 25, the lower end portion of the rear wall 5d, the rearmost of the lower wall portion 21b and the flat portion 27a of the fan case 21, and is similarly coupled to these portions by the coupling portion 29.

Next, the structure of water receiving unit 27 will be described in more detail with reference to fig. 9. Fig. 9 is a front view of the lower wall portion 21b of the fan housing 21.

As shown in fig. 9, the groove 27b (see fig. 8) of the water receiving unit 27 has a branch point 27c, and the inclination direction of the groove 27b changes at the branch point 27c in the longitudinal direction (X direction). That is, the groove 27b of the water receiving portion 27 is formed to be inclined downward toward one side (left side) and the other side (right side) from the branch point 27c as a starting point. Therefore, in the groove 27b, the height Ha of the branch point 27c shown in fig. 9 is the highest position.

At this time, the branch point 27c is disposed on the other side (right side) of the center of the groove 27b in the longitudinal direction. This enables a large amount of water to be guided to one side (left side). The water directed to one side is finally directed to the 1 st tray 13. Therefore, the capacity of the water storage portion 15a for drainage provided in the second (right) tray 2 can be reduced. Further, the water storage portion 15a of the 2 nd tray 15 can secure a further capacity when there is no margin for the capacity of the 1 st tray 13. This enables the 1 st tray 13 to be downsized.

As shown in fig. 9, the height Hb of the end 27d on one side (left side) of the groove 27b is set to be lower than the height Hc of the end 27e on the other side (right side) of the groove 27 b. This minimizes the height of the end 27d of the water receiving portion 27 on the longer side of the channel of the groove 27b through which the supply water flows. Therefore, even when the amount of water flowing through the groove 27b is large, the water can smoothly flow without overflowing.

Next, the structure of water receiving unit 27 will be further described with reference to fig. 10. Fig. 10 is a plan view of water receiving unit 27.

As shown in fig. 10, the groove 27b of the water receiving portion 27 is formed in a forward curved shape such that one end portion 27d (left side) is positioned forward of the branch point 27 c.

With the structure of water receiving portion 27, as shown in fig. 8, water droplets condensed on fan case 21 fall down along the inner surface of fan case 21 by their own weight. Then, the water droplets pass through the gap between fan housing 21 and rear wall 5d of heating chamber 5 and fall into groove 27b of water receiving portion 27. Further, water droplets condensed on the flange portions 25 of the rear wall 5d and the bottom wall 5e of the heating chamber 5 also flow through the gap between the rear wall 5d and the flange portions 25 and fall into the groove 27b of the water receiving portion 27.

At this time, if the drop position of the water droplet is closer to one side (left side) than the branch point of the water receiving portion 27, the water droplet is guided to the end portion 27d on one side (left side) of the groove 27b and is also guided forward along the curve of the groove 27 b. That is, the water is also guided to the front of the groove 27 b. Therefore, the water falling from the end 27d on one side (left side) of the groove 27b has not only a velocity component in the longitudinal direction (X direction) but also a velocity component in the forward direction (-Y direction). This can reduce the momentum of water falling from the end 27d of the groove 27b to scatter in the longitudinal direction.

Next, the structure of the other side (right side) periphery of water receiving unit 27 will be described with reference to fig. 11. Fig. 11 is an enlarged plan view of the periphery of the other end 27e of water receiving portion 27.

As shown in fig. 11, the groove 27b of the water receiving portion 27 has a slit 30 between the branch point 27c and the other end portion 27 e. At this time, the groove 27b is formed in a shape curved forward between the branch point 27c and the notch 30 and between the other end 27e and the notch 30.

Thus, if the drop position of the water droplet is on the other side (right side) than the branch point 27c of the water receiving portion 27, the water droplet is guided to the notch 30 of the groove 27b and is also guided forward along the curve of the groove 27 b.

The slit 30 has an inner slit portion 30a located on one side in the longitudinal direction (X direction) of the bent portion 27f of the groove 27b and an outer slit portion 30b located on the other side. The inside cutout portion 30a and the outside cutout portion 30b intersect at respective rear ends.

When the amount of water flowing from the branch point 27c to the other side in the longitudinal direction and guided to the notch 30 is large, a part of the water collides with the outer notch 30b when the water falls from the inner notch 30 a. This prevents water from scattering outward in the longitudinal direction when the water falls. The falling water is guided downward.

Further, the notch 30 constituting the water discharge port on the other side of the groove 27b is disposed at a position further forward than the branch point 27c by bending. As a result, a lateral flow groove portion 51 (see fig. 20) described later that receives water discharged from the slit 30 can be arranged to extend around to the rear (Z direction) of the slit 30. As a result, the water falling from the notch 30 can be prevented from bouncing back and scattering. Further, the notch 30 is disposed inward, i.e., on the left side, of the end 27e on the other side (right side). This makes it possible to reduce the size of the heating cooker 1 in the longitudinal direction (X direction).

Next, referring to fig. 12, a flow path through which water flows from one side (left side) end 27d of the water receiving portion 27 to the 1 st tray 13 via another water receiving portion (lateral flow groove portion 31) will be described. Fig. 12 is a front perspective view of the periphery of one end portion 27d of water receiving portion 27.

As shown in fig. 12, a cross flow groove portion 31 constituting a separate water receiving portion is disposed below one end portion 27d of the groove 27 b. At this time, the end portion 27d of the groove 27b and the lateral flow groove portion 31 are configured to have a space therebetween without contact. This simplifies the attachment and detachment of fan housing 21 supporting water receiving unit 27 to and from heating chamber 5. Further, the heating chamber 5 can be easily removed.

Next, the structure of the bottom plate 37 of the heating cooker 1 will be described with reference to fig. 13. Fig. 13 is a plan view of the bottom plate 37.

As shown in fig. 13, the bottom plate 37 is disposed below the heating chamber 5 so as to have a space. The bottom plate 37 is connected to the front frame 3a of the housing 3 and the lower end of the fan case 21. The space between the bottom wall 5e of the heating chamber 5 and the bottom plate 37 is used as a machine room. In the machine room, a drive mechanism for driving each function of the heating cooker 1, a magnetron (not shown) for generating microwaves, a magnetron drive power supply (not shown) for supplying power to the magnetron, a control unit (not shown) for controlling microwave generation operation, and the like are arranged. Fig. 13 shows a state in which the 1 st tray 13 is attached and the cover of the cooling fan 39 is removed.

The bottom plate 37 includes a concave portion 41 in the central portion and a bottom plate flat portion 43 formed along the outer periphery thereof. A cooling fan 39, a magnetron, and the like are disposed in the recess 41. The concave portion 41 is formed by press working or the like, for example. The bottom flat portion 43 is formed to rise from the recess 41 along the outer periphery of the recess 41. The bottom plate flat portion 43 has an elongated hole 45 extending in the front-rear direction on the rear side of one side (right side) in the longitudinal direction (X direction). The long hole 45 is formed so that a part of the lateral flow groove portion 31 protrudes upward from below.

The bottom plate 37 has a runner cover 47 that is disposed in front of the elongated hole 45 and has an arcuate cross section. The runner cover portion 47 is formed to gradually rise upward from the bottom plate flat portion 43 toward the rear. The gutter cover 47 is formed to cover a part of the inclined portion of the lateral gutter portion 31 inclined downward from above the bottom plate 37.

Next, the structure of the cross flow groove 31 will be described with reference to fig. 14 to 16. Fig. 14 is a plan view of the periphery of the cross flow groove part 31. Fig. 15 is a plan view of the periphery of the cross flow groove portion 31 in the state where the bottom plate 37 is removed in fig. 14. Fig. 16 is a view taken from the inner side (rear side) of the cross flow groove portion 31 as viewed from the line 16-16 of fig. 14.

As shown in fig. 14 to 16, the cross flow groove portion 31 is disposed below the end portion 27d on one side (left side) of the water receiving portion 27. The lateral flow groove 31 extends forward from the rear along a side portion 49c of the lower frame 49 on one side (left side) of the heating cooker 1. The cross flow groove portion 31 is arranged to have a downward inclination angle toward the front (see fig. 16).

Specifically, the cross flow groove portion 31 includes: a 1 st cross flow channel part 33 disposed below the end part 27d on one side of the water receiving part 27; and a 2 nd cross flow groove portion 35 extending forward from the front end 33a of the 1 st cross flow groove portion 33. The 1 st and 2 nd horizontal flow groove portions 33 and 35 have substantially straight (including linear) flow paths.

At this time, as shown in fig. 16, the 1 st horizontal flow groove portion 33 and the 2 nd horizontal flow groove portion 35 are arranged at different inclination angles. Specifically, the inclination angle θ 1 of the 1 st cross flow groove portion 33 is arranged at an inclination angle larger than the inclination angle θ 2 of the 2 nd cross flow groove portion 35.

The lateral flow groove 31 includes a bottom wall 31a through which the falling water flows, a side wall 31b extending upward from a side edge of the bottom wall 31a, and the like. The bottom wall 31a includes the bottom wall 31aa of the 1 st cross flow groove part 33, the bottom wall 31ab of the 2 nd cross flow groove part 35, and the like. The side wall 31b includes a side wall 31ba of the 1 st lateral flow groove portion 33 and a side wall 31bb of the 2 nd lateral flow groove portion 35, and the like. The rear portion of the side wall 31ba of the 1 st cross flow groove portion 33 protrudes upward from below through a long hole 45 opened in the bottom plate 37. At this time, as shown in fig. 16, the height Hb of the end portion 27d on one side (left side) of the water receiving portion 27 is set lower than the height Hd of the upper end of the side wall 31ba of the 1 st horizontal flow groove portion 33. Thus, even if water falling from the water receiving portion 27 bounces on the 1 st horizontal flow groove portion 33, the water can be prevented from flying out from the rear of the 1 st horizontal flow groove portion 33. Similarly, the side wall 31ba of the 1 st cross flow groove portion 33 is arranged to detour behind the end portion 27d of the water receiving portion 27 (see fig. 15). This can more reliably prevent the water from flying backward due to the rebound.

At least a part of the side wall 31ba of the 1 st cross flow groove portion 33 is configured to protrude upward from below through a long hole 45 opened in the bottom plate 37. This can increase the inclination angle θ 1 of the 1 st cross flow groove 33. Therefore, even if the height of the housing 3 is lowered, the falling water can be smoothly discharged forward through the 1 st horizontal flow groove 33.

A lower frame 49 for supporting the bottom plate 37, the 1 st tray 13, and the 2 nd tray 15 is disposed below the bottom plate 37. The lower frame 49 also supports the cross flow trough portion 31.

Further, lower frame 49 has, in the front portion, 1 st tray housing portion 49a for housing 1 st tray 13 and 2 nd tray housing portion 49b for housing 2 nd tray (see fig. 19).

Next, the configuration of the periphery of the tip of the 2 nd horizontal flow groove portion 35 extending on the other side in the longitudinal direction (X direction) will be described with reference to fig. 17. Fig. 17 is a front perspective view of the periphery of the front end of the 2 nd cross flow groove portion 35.

As shown in fig. 17, the tip 35a of the 2 nd horizontal flow groove portion 35 of the horizontal flow groove portion 31 extends into the 1 st tray accommodation portion 49 a. That is, when the 1 st tray 13 is mounted on the 1 st tray housing portion 49a, the front end 35a of the 2 nd lateral flow groove portion 35 is positioned above the rear portion of the 1 st tray 13. Thus, the water falling from the front end 35a of the 2 nd horizontal flow groove 35 is accommodated in the 1 st tray 13.

As described above, the water falling from the water receiving portion 27 to the 1 st cross flow groove portion 33 is accelerated forward and moved by the 1 st cross flow groove portion 33 having a large inclination angle. Therefore, the water is sufficiently accelerated when entering the 2 nd cross flow groove portion 35 having a gentle inclination angle, and therefore moves forward without being retained in the cross flow groove portion 31. Then, the water falls from the front end 35a of the 2 nd cross flow groove portion 35 into the 1 st tray 13.

Next, a flow path of water flowing from the other side (right side) of the water receiving portion 27 to the 2 nd tray 15 through the other water receiving portion (lateral flow groove portion 51) will be described with reference to fig. 18 and 19. Fig. 18 is a front perspective view of water receiving unit 27 around notch 30. Fig. 19 is a front perspective view showing a flow path of water from notch 30 of water receiving unit 27 to 2 nd tray housing portion 49 b.

As shown in fig. 18 and 19, heating cooker 1 includes lateral flow groove 51 constituting another water receiving portion, and lateral flow groove 51 guides water falling from notch 30 of water receiving portion 27 to the other outer side to tray 2 15. The lateral flow groove 51 extends forward from the rear along the side portion 49d of the lower frame 49 on one side (right side) of the heating cooker 1. The cross flow groove portion 51 is arranged to have a downward inclination angle toward the front.

Specifically, the cross flow groove portion 51 includes: a 3 rd cross flow channel part 53 which receives water falling from the notch 30 of the water receiving part 27; and a 4 th lateral flow groove portion 55 which catches water falling from the front portion 53ba of the 3 rd lateral flow groove portion 53.

Next, the structure of the 3 rd cross flow groove part 53 of the cross flow groove part 51 will be described in detail with reference to fig. 20. Fig. 20 is a front perspective view showing the periphery of guide portion 53a that receives water falling from notch 30 of water receiving portion 27.

As shown in fig. 20, the 3 rd lateral flow groove portion 53 includes a guide portion 53a linearly extending in the front-rear direction and a longitudinal flow groove portion 53b extending in the up-down direction. Guide portion 53a is disposed such that rear end 53aa (see fig. 19) is positioned behind notch 30 of water receiving portion 27. The guide portion 53a is formed in a concave shape in cross section, for example, but may be formed in a V shape. The guide portion 53a is configured to incline downward toward the front.

The guide portion 53a is bent outward in the flow path at the front portion, and is connected to the vertical flow groove portion 53 b. The vertical flow groove portion 53b extends downward through a hole 57 opened in the flat portion 27a on the other side (right side) in the longitudinal direction (X direction) of the bottom plate 37. The 4 th cross flow groove part 55 is disposed below the longitudinal flow groove part 53 b.

As shown in fig. 19, the 4 th cross flow groove portion 55 is arranged along the side portion 49d on the other side (right side) of the lower frame 49. The rear end portion 55a of the 4 th cross flow groove portion 55 is disposed below the longitudinal flow groove portion 53 b. The 4 th cross flow groove 55 is inclined downward toward the front. The 4 th horizontal flow groove portion 55 is disposed such that the tip 55b extends into the 2 nd tray housing portion 49 b. That is, when the 2 nd tray 15 is mounted on the 2 nd tray housing portion 49b, the front end 55b of the 4 th lateral flow groove portion 55 is positioned above the rear portion of the 2 nd tray 15. The 2 nd tray 15 has a water storage portion 15a (see fig. 21) disposed on the front outer portion thereof for storing water flowing down from the lateral flow grooves 51. Thus, the water falling from the front end 55b of the 4 th cross flow groove 55 is received in the 2 nd tray 15.

The water falling from the notch 30 of the water receiving portion 27 descends forward along the inclination of the guide portion 53a of the 3 rd cross flow groove portion 53, and flows toward the vertical flow groove portion 53 b. The water flowing into the vertical flow groove 53b is guided downward and falls into the 4 th horizontal flow groove 55 disposed below the bottom plate 37. Then, the water falling down to the 4 th cross flow groove portion 55 descends forward along the inclination of the 4 th cross flow groove portion 55, and is guided to the 2 nd tray 15.

As described above, the heating cooker 1 of the present embodiment includes: a rear wall 5d disposed at the rear of the heating chamber 5; a water receiving part 27 which receives water falling down along the rear wall 5d and is extended in the length direction; and a cross flow channel part 31 disposed below the end part 27d on one side of the water receiving part 27. The water receiving portion 27 has a groove 27b for guiding water to one end portion 27 d. The cross flow groove portion 31 has an inclination angle downward toward the front. The cross flow groove portion 31 includes a 1 st cross flow groove portion 33 disposed below the end portion 27d on the one side of the water receiving portion 27, and a 2 nd cross flow groove portion 35 extending forward from the front end of the 1 st cross flow groove portion 33. The inclination angle θ 1 of the 1 st cross flow groove portion 33 is larger than the inclination angle θ 2 of the 2 nd cross flow groove portion 35.

With the above configuration, the following effects can be obtained.

First, since the inclination angle θ 1 of the 1 st horizontal flow groove portion 33 of the horizontal flow groove portion 31 is larger than the inclination angle θ 2 of the 2 nd horizontal flow groove portion 35, the flow velocity of water can be accelerated in the inclined direction even if the kinetic energy of the water falling from the groove 27b of the water receiving portion 27 is small. Further, when the water enters the 2 nd lateral flow groove portion 35 whose inclination angle is gentle, the water has been sufficiently accelerated by the inclination angle θ 1 of the 1 st lateral flow groove portion 33. Therefore, the water moves forward without staying in the 2 nd cross flow groove portion 35. That is, with the above configuration, water can be guided forward appropriately, and water can be prevented from staying in the lateral flow groove 31. Further, by disposing the end 27d on the side of the water receiving portion 27 above the 1 st cross flow groove portion 33 having a large inclination angle, the 1 st cross flow groove portion 33 and the end 27d of the water receiving portion 27 can be disposed closer to each other. Therefore, the drop impact between the falling water and the 1 st cross flow groove portion 33 can be reduced. As a result, the water rebounding from the 1 st horizontal flow groove portion 33 can be reduced.

Further, since water receiving unit 27 is formed of a member separate from fan housing 21, the degree of freedom with respect to the shape of water receiving unit 27 is improved. This makes it possible to easily bend the groove 27b forward, for example. The water receiving portion 27 formed in a curved shape is integrated with the fan housing 21. Therefore, the water receiving portion 27 is easily aligned in the front-rear direction when assembled.

In addition, when joint 29 is a joint having a gap, such as a caulking joint, for example, it is possible to cause water droplets flowing down through the gap to flow toward water receiving portion 27. This can reduce the retention of water in the fan case 21 and the heating chamber 5.

The groove 27b is formed to be bent forward. This gives a velocity component in the forward direction to the water falling from the end 27d on one side (left side). Therefore, the velocity component in the longitudinal direction is suppressed, and the scattering of water in the longitudinal direction can be reduced. Furthermore, by bending the groove 27b forward, another water receiving portion (for example, the lateral flow groove portion 31) protruding rearward of the groove 27b can be disposed, and therefore, scattering of water rearward can be reduced. This reduces the necessity of providing a new structure for preventing, for example, scattering or the like, separately on the outer side in the longitudinal direction. Therefore, the heating cooker 1 can be downsized in the longitudinal direction.

The branch point 27c of the water receiving unit 27 is disposed on the other side (right side) of the center of the groove 27b in the longitudinal direction. This makes it possible to increase the amount of water flowing into one groove 27b compared to the other groove. As a result, the capacity of the water storage portion 15a of the 2 nd tray disposed on the other side can be made smaller than the capacity of the 1 st tray 13.

The end 27d of the groove 27b on one side is arranged at a lower height than the end 27e of the groove 27b on the other side. That is, the height of the end 27d of the groove 27b on the longer side of the flow path is low. This allows the end 27d of the groove 27b to be disposed close to another water receiving portion (cross flow groove portion 31) provided on the downstream side. Therefore, even if the amount of water flowing into the groove 27b is large, the water can smoothly flow to the other water receiving portion on the downstream side.

The heating cooker 1 of the present embodiment includes a water supply tank 14 for supplying water to the steam generator 16, and the water supply tank 14 is disposed on the other side of the heating cooker 1. Thus, the water supply tank 14 is disposed in front of the branch point 27c of the tank 27 b. Further, a branch point 27c is disposed on the side where the water supply tank 14 is disposed. Therefore, the amount of water to be guided to the 2 nd tray 15 accommodating the water supply tank 14 can be reduced. This can reduce the capacity of the water storage portion 15a of the 2 nd tray 15, and thus can sufficiently secure the capacity of the water supply tank 14 disposed in the 2 nd tray 15.

The present invention is not limited to the above embodiment, and the following modifications can be implemented.

For example, in the above-described embodiment, an example of a configuration in which one flow path in the longitudinal direction is made longer and the other flow path is made shorter is described, but the present invention is not limited to this. For example, the length configurations of the flow paths may be switched between one side and the other side.

In addition, by appropriately combining any of the various embodiments and modifications described above, the respective effects can be obtained.

The present invention has been fully described in connection with the preferred embodiments with reference to the accompanying drawings, but it is apparent that various modifications and corrections can be made by those skilled in the art. It is to be understood that such changes and modifications are intended to be included within the scope of the present invention as defined by the appended claims. Further, combinations of elements and changes in the order of the elements of the respective embodiments can be realized without departing from the scope and spirit of the present invention.

As described above, one embodiment of the present invention is a heating cooker having a heating chamber. A heating cooker is provided with: a rear wall disposed at a rear portion of the heating chamber; a water receiving part which is extended in the length direction and receives water falling down along the rear wall; and a lateral flow channel part which is arranged below one end part of the water receiving part and has an inclination angle towards the front and downwards. The water receiving part is provided with a groove for guiding water to one end part, and the transverse flow groove part is provided with: a 1 st cross flow trough part arranged below one end part of the water receiving part; and a 2 nd cross flow groove part extending forward from the front end of the 1 st cross flow groove part. Moreover, the inclination angle of the 1 st cross flow groove section is larger than that of the 2 nd cross flow groove section.

Further, the 1 st cross flow groove portion may include: a bottom wall having a downward inclination angle; and side walls extending upward from both side ends of the bottom wall, the 1 st lateral trough portion being formed by: the end part of one side of the water receiving part is lower than the upper end of the side wall of the No. 1 transverse flow trough part.

Further, a bottom plate disposed below the heating chamber may be provided, and at least a part of the bottom wall of the 1 st cross flow groove may protrude upward from below through a hole opened in the bottom plate.

Further, the water receiving portion may be joined to the rear wall, and one end of the water receiving portion may be arranged so as not to contact the 1 st cross flow groove portion.

Claims (4)

1. A heating cooker having a heating chamber, comprising:

a rear wall disposed at a rear portion of the heating chamber;

a water receiving part which is extended in the length direction and receives water falling down along the rear wall; and

a lateral flow channel part which is arranged below one end part of the water receiving part and has an inclination angle towards the front and downwards,

the water receiving portion has a groove for guiding the water to the end portion of the one side,

the cross flow groove part has: a 1 st cross flow trough part arranged below one end part of the water receiving part; and a 2 nd horizontal flow groove part extending forward from the front end of the 1 st horizontal flow groove part,

the inclination angle of the 1 st cross flow groove part is larger than that of the 2 nd cross flow groove part.

2. The heating cooker according to claim 1,

the 1 st cross flow groove part has:

a bottom wall having a downward inclination angle; and

side walls extending upward from both side ends of the bottom wall,

the 1 st lateral flow groove portion is formed by: the end of the one side of the water receiving part is lower than the upper end of the side wall of the No. 1 transverse flow trough part.

3. The heating cooker according to claim 2,

the heating cooker has a bottom plate disposed below the heating chamber,

at least a part of the bottom wall of the 1 st cross flow groove portion protrudes upward from below through a hole opened in the bottom plate.

4. The heating cooker according to any one of claims 1 to 3,

the water receiving part is combined with the rear wall,

the end portion of the one side of the water receiving portion and the 1 st lateral flow groove portion are configured not to contact.

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