JP3883977B2 - Cooker - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cooking device that performs cooking by circulating hot air generated from a heater by a circulation fan in a cooking chamber that houses and heats an object to be cooked.
[0002]
[Prior art]
For example, in a cooking device having a relatively large capacity cooking chamber in which cooking dishes are arranged in two upper and lower stages in a cooking chamber to perform oven cooking or the like, as shown in Patent Document 1, for example, A hot air chamber 10 containing a heater 9 for heat source and a circulation fan 8 is formed in the rear, and is generated by the heater through an air inlet 14 and an air outlet 12 formed in a rear wall 11 that partitions the hot air chamber and the cooking chamber. The heated air is circulated in the cooking chamber, and the cooked food is heated with this hot air.
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 7-119974
[Problems to be solved by the invention]
On the other hand, in the case of the above configuration, a box-shaped sheet metal for forming a hot air chamber is fixed to the back of a so-called cavity forming a cooking chamber with screws, but the cooking chamber is heated to a high temperature of about 300 ° C. by oven cooking. Due to reasons such as being heated to a long time, there is a problem that the screw is fixed by long-term use, and even if the heater breaks down due to disconnection or the like, the hot air chamber cannot be removed and the heater cannot be easily replaced. .
[0005]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to configure the heater to be replaced relatively easily.
[0006]
[Means for Solving the Problems]
In the present invention, a blower chamber case provided with a circulation fan and a heater is fixed behind a cooking chamber for storing and heating an object to be cooked, and a plurality of plates are formed on a partition plate that partitions the blower chamber case and the cooking chamber. The hot air in the blower chamber case is circulated into the cooking chamber through the intake holes and the blowout holes, and an insertion hole into which the heater can be inserted is drilled on the upper surface of the blower chamber case. It is configured to be detachably mounted from the upper surface.
[0007]
The present invention is to constitute a heater at a plurality of sheathed heaters, juxtaposed these sheathed heater in the longitudinal direction at a fixed plate forming the support piece fixed beforehand to the fixing plate, the fixing plate The heater is fixed in the air chamber case by a fixing plate by being fixed in the air chamber case .
[0008]
In the present invention, each sheathed heater has the same shape, and is fixed to a fixed plate with different vertical positions.
[0009]
Further, according to the present invention, the air blowing chamber is divided forward and backward by a guide plate, a heater is mounted in the partitioned front chamber, a circulation fan is mounted in the rear chamber, and the sheathed heater is fixed to the front side of the fixed plate, and this fixing is performed. The plate is fixed so as to contact the guide plate.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described first with reference to FIG. 1. Reference numeral 1 denotes a floor-type cooker body that is used by being incorporated in, for example, a system kitchen for general households. A cooking chamber 3 for storing and heating an object to be cooked from the opening is defined, and a box-shaped blower chamber case 4 is fixed to the rear end surface of the cooking chamber with a screw or the like.
[0011]
In addition, as shown in FIG. 2, the air blower case 4 is divided into front and rear sections by a guide plate 5 to form a front chamber 6 and a rear chamber 7, and a heater 8 such as a sheathed heater is mounted in the front chamber. A circulation fan 9 is mounted in the rear chamber 7.
[0012]
In addition, the combination of the cooking chamber 3 and the blower chamber case 4 has a configuration common to a heating device in which a combustion chamber containing a gas burner is formed behind the cooking chamber as disclosed in, for example, Japanese Patent Application Laid-Open No. 2000-30856. It is possible to use these materials, and in that case, it is possible to reduce costs by reducing die costs.
[0013]
On the other hand, the cooking chamber and the front chamber are partitioned by a partition plate 10, and as shown in FIG. 3, the partition plate is provided with a plurality of suction holes 11. ········································································· After heating, it passes through the left and right circulation passages 14 and 14 formed in the outer periphery of the rear chamber 7 and the front chamber 8 and circulates in the cooking chamber 3 through the blowing holes 12. It is configured to heat the food to be cooked by circulating hot air inside.
[0014]
The cooking chamber 3 is configured to supply high-frequency radio waves by a magnetron (not shown), and hot air and high-frequency radio waves from the heater 8 are supplied simultaneously or independently according to the type of food to be cooked. It is configured to heat cook.
[0015]
Further, as shown in FIGS. 4 and 5, the heater 8 is mounted on the fixed plate 17 so that sheathed heaters 15 and 16 having the same shape are arranged side by side in different positions in the vertical direction. Yes.
[0016]
With these configurations, air in the cooking chamber 3 is circulated substantially uniformly around each of the sheathed heaters 15 and 16 with a relatively simple arrangement without newly designing a plurality of sheathed heaters having different shapes. Heating can be performed efficiently, and thus the cost of the heater 8 can be reduced.
[0017]
The fixed plate 17 is erected so as to oppose the rear of the sheathed heaters 15, 16, and is opposed to the suction holes 11, which are perforated in the approximate center of the intake holes 11 and the guide plate 5. The vent holes 19 are perforated, and support pieces 21, 21, and 22 are integrally formed by cutting up and forming at one end side close to the connection terminals 20... And the edge of the vent hole 19 on the other end side. ing.
[0018]
The support pieces 21 and 21 are formed with a plurality of engaging grooves 23 and 23 for opening one end side and engaging the appropriate positions of the sheathed heaters 15 and 16. , A plurality of engaging grooves 24... For engaging the appropriate positions of the sheathed heaters 15, 16 are formed by opening up and down, and retaining pieces 25, 25 are opposed to the engaging grooves 23, 23. The screws 27 and 27 are fixed to a fixing piece 26 bent at one end of the fixing plate 17 so that the sheathed heaters 15 and 16 are not detached from the engaging grooves 23 and 23 by the retaining pieces 25 and 25. is doing.
[0019]
Further, on the left and right sides of the lower end of the fixing plate 17, engaging protrusions 30, 30 that engage in the engaging hole 29 (FIG. 1) drilled at the position near the guide plate 4 of the blowing chamber case 4 bottom plate 28 are integrated. The heater 8 is configured to be detachably and securely fixed in the front chamber 6 by these engagements.
[0020]
With the above configuration, when the heater 8 is mounted in the front chamber 6, the fixed plate 17 contacts the guide plate 4 and is securely fixed, and generation of vibration noise due to vibration generated by the rotation of the circulation fan 9 is minimized. It can be prevented.
[0021]
On the other hand, an insertion hole 31 that is slightly larger than the heater 8 is formed in the upper surface of the front chamber 8 (FIG. 2). As shown in FIGS. Are fixed to the fixing plate 17 and inserted into the front chamber 8 for mounting.
[0022]
The insertion hole 31 is configured so as to be blocked by a cover plate 32 after the heater 8 is inserted into the front chamber 8, and to prevent leakage of hot air from the portion, and the sheathed heaters 15 and 16 are penetrated. Further, an auxiliary lid 33 is fixed to the part with a screw 34... So as to surely prevent leakage of hot air from the penetrating part. The lid plate 32 is formed with notched grooves 35 and 35 for engaging the upper ends of the sheathed heaters 15 and 16 (FIG. 2). By fixing, the sheathed heaters 15 and 16 are configured to be securely fixed.
[0023]
With these configurations, for example, when the heater 8 is replaced due to disconnection or deformation, the auxiliary lid 33 and the cover plate 32 are removed and the heater 8 is lifted, so that the air chamber case 4 and the like can be relatively removed. The heater 8 can be easily replaced.
[0024]
Thus, when the heater 8 is assembled, the sheathed heaters 15 and 16 are sequentially engaged in the engaging grooves 23, 23, 24... Formed in the support pieces 21, 21, 22 of the fixing plate 17. The retaining pieces 25, 25 are fixed to the fixing pieces 26 with screws 27, 27 and the sheathed heaters 15, 16 are fixed to the fixing plate 17 to constitute the heater 8. 30 is inserted into the front chamber 8 while being inserted into the engagement hole 29, and then the lid plate 32 and the auxiliary lid 33 are fixed to the upper surface of the blower chamber case 4.
[0025]
The connection terminals 20 of the respective sheathed heaters 15 and 16 are fixed at the penetrating portion of the heat shield plate 37 fixed to the upper part of the blower chamber case 4 shown in FIG. .
[0026]
【The invention's effect】
With the configuration of the present invention, the heater is attached to and detached from the upper surface of the blower chamber case with the insertion hole drilled in the upper surface of the blower chamber case. The heater can be replaced relatively easily without removing the chamber case, and the serviceability can be improved.
[0027]
Further, according to the configuration of the present invention, the heater is composed of a plurality of sheathed heaters , and these sheathed heaters are juxtaposed in the front-rear direction by a support piece formed on the stationary plate and fixed in advance to the stationary plate. By fixing the fixed plate in the blower chamber case, the heater is fixed in the blower chamber case via the fixed plate. The operability can be improved.
[0028]
In addition, according to the configuration of the present invention, the same shape is used for the sheathed heater, and the position of the top and bottom direction is changed and the plate is fixed to the fixed plate. The amount of air passing around the sheathed heater placed near the center heater is not significantly reduced, and the air in the cooking chamber can be passed almost uniformly around the sheathed heater to prevent a decrease in thermal efficiency as much as possible. It is.
[0029]
Furthermore, according to the configuration of the present invention, the sheathed heater is fixed to the front surface of the fixed plate, and the fixed plate is fixed so that the fixed plate comes into contact with the guide plate that divides the blower chamber forward and backward, and is fixed using the guide plate. The plate can be securely fixed, and the generation of vibration noise due to the influence of vibration or the like generated when the circulation fan rotates can be prevented.
[Brief description of the drawings]
FIG. 1 is a side longitudinal sectional view showing an embodiment according to the present invention.
FIG. 2 is a cross-sectional view taken along line AA in FIG.
3 is a cross-sectional view taken along the line BB in FIG.
FIG. 4 is a front view showing an embodiment of a heater according to the present invention.
FIG. 5 is a side view of the same.
[Explanation of symbols]
3 Cooking Room 4 Blower Chamber Case 5 Guide Plate 6 Front Chamber 7 Rear Chamber 8 Heater 9 Circulating Fan 10 Partition Plate 11 Intake Hole 12 Blowout Hole 15 Seeds Heater 16 Seeds Heater 17 Fixing Plate

Claims (4)

A plurality of air intake holes formed in a partition plate for partitioning the blower chamber case and the cooking chamber by fixing a blower chamber case including a circulation fan and a heater to the rear of the cooking chamber for storing and heating the object to be cooked The hot air in the blower chamber case is circulated into the cooking chamber through the blowout hole, and an insertion hole into which the heater can be inserted is drilled on the upper surface of the blower chamber case. A cooking device that is detachably mounted from the top. Together constituting the heater at a plurality of sheathed heaters, fixed in advance fixed plate and juxtaposed in the longitudinal direction by the support piece forming these sheathed heater to the fixing plate, the blowing chamber case the fixing plate The cooking device according to claim 1, wherein the heater is fixed in the blower chamber case by a fixing plate by being fixed inside .   The heating cooker according to claim 2, wherein each of the sheathed heaters has the same shape and is fixed to the fixing plate with different vertical positions. The inside of the blast chamber case is divided into front and rear by a guide plate, the heater is attached to the partitioned front chamber, the circulation fan is attached to the rear chamber, and the sheathed heater is fixed to the front side of the fixed plate, and The cooking device according to claim 2 or 3, wherein the fixed plate is fixed so as to contact the guide plate.

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