JPS6240244Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to an oxidation catalyst device mounting device for a cooking device that is used in general households and has a catalyst that oxidizes and decomposes oil smoke and odor generated from cooking food. The purpose is to facilitate installation and removal and to prevent damage to the catalyst during installation and removal and during use.

An embodiment of the present invention will be described below based on the accompanying drawings.

In the figure, reference numeral 1 denotes a lower body, on the lower surface of which front legs 2 and rear legs 3 are attached, a lower handle 4 for carrying around is attached to the side, and a lower hinge 5 is attached to the rear.

Further, a saucer 6 is placed on the lower body 2, and a net 8 for placing food 7 on the inside of the tray 6 is provided, and a knob 28 for raising and lowering the net 8 is provided at the front of the lower body 1. positioned. 10 is a name that displays the lifting/lowering operation. In the above structure, the saucer 6 and the net 8 are removable, and can be easily cleaned and washed when they become soiled with meat juices from the food 7.

Reference numeral 9 denotes an upper body, and a glass 10 through which the inside can be seen is provided at the front part of the upper body, and is fixed with a glass frame 11. Further, an upper hinge 12 is provided at the rear of the upper body 9 to be connected to the lower body 1 in an openable and closable manner, and an upper handle 15 is provided on the side surface to be operated when opening and closing. A heating element 13 is provided inside the upper body 9, and the food 7 is heated by this heating element 13. The heating element 13 is attached to a reflector plate 14, and is attached to the upper body 9 by heater metal fittings 16, heater ceramics 17, clip springs 18, and the like.

Further, a recess with an open center is provided in the center of the upper body 9, and an exhaust port 19 is located in this recess from the outside of the upper body 9. In addition, this exhaust port 19
A mounting bracket 20 with a female thread is installed in the center of the inside of the
is fixed.

Reference numeral 21 denotes a catalyst, and this catalyst 21 is covered with an upper case 22 and a lower case 23, and is fixed with rivets 24 or claws, etc., to protect the catalyst 21. The upper case 22 has an opening in the center, and also has claws 25 bent toward the catalyst 21 at several places around the opening.
The claws 25 are dimensioned to be slightly deformed when covered with the upper case 22 and lower case 23.

In addition, a gap a is provided between the lower case 23 and the lower surface of the catalyst 21 except for the center and the periphery, and the lower case 23 corresponding to the gap a has a number of holes 26 cut out in the direction of the catalyst 21. There are several locations. Further, the lower case 23 is curved downward in a convex shape to enlarge the gap a, and in this state, the center portion is connected to the mounting bracket 20 from the inside of the upper body 9 using a stepped screw 27 having a small diameter threaded portion at the tip. concluded. The length of the stepped screw 27 is set so as to provide a slight gap b between the center of the catalyst 21 and the center of the lower case 23 when the lower case 23 and the catalyst 21 are completely installed. In addition, since this stepped screw 27 can be removed, the upper case 22 and lower case 2
The catalyst 21 covered by 3 can be removed,
As a result, the upper body 9 can also be cleaned.

Furthermore, when the food 7 is heated by the heating element 13, oily smoke and odor are generated, but this is caused by the lower case 2.
The gas is exhausted from the opening of the exhaust port 19 through the hole c and opening d formed by the cut and raised portion 26 of No. 3, and through the catalyst 21.

The catalyst 21 is formed by gathering honeycomb-like or cylindrical pellets into a predetermined shape, and is heated by the heating element 13.

The oil smoke and odor generated from the cooked food are mainly hydrocarbons consisting of carbon and hydrogen, so when they pass through the catalyst 21, the hydrocarbons CmHn
Since it is oxidized to CmHn→mCO ₂ +n/2H ₂ O, carbon dioxide, and water, it can be made smokeless and odorless.

In addition, since the catalyst 21 is an oxidation catalyst containing manganese dioxide as its main component, it is vulnerable to drop impact, etc., and there is a risk that cracks, cracks, etc. may occur.
In this embodiment, both sides of the catalyst 21 are covered and protected by an upper case 22 and a lower case 23, and the upper case 22 is further provided with deformable claws 25, so that it is possible to absorb the drop impact, etc. can.
In addition, with the above mounting configuration, the catalyst 21 can be mounted in one place.
Since this can be done using only the standard stepped screws 27, the installation is extremely easy, and at the same time, the removal is also easy. Further, since the stepped portion of the small diameter screw portion provided at the tip of the stepped screw 27 contacts the mounting fitting 20, it is easy to manage the tightening of the screw. Also, when tightening the catalyst 21
Since the center part of the lower surface and the center part of the lower case 23 do not touch and there is a gap b, no load is applied to the center part of the catalyst 21 during tightening, and the lower case 2
The load generated due to the deformation of the curved convex part of 3 is applied to the upper case 2.
2, the catalyst 21 can be pressed and attached to the upper body 9.

This allows the catalyst 21 to be protected during manufacturing and use, so it will not be damaged.
Can be used for a long time. Note that this mounting configuration can be applied not only to gas appliances but also to ovens and the like.

As described above, according to the present invention, the catalyst is formed in a concave shape with a central protrusion so that the central part has a gap with the lower surface of the catalyst, and has a plurality of holes; The catalyst is held by an upper case having an opening in the inner circumference of the opening, and a claw for pressing the catalyst is formed on the inner periphery of the opening, and through holes are provided in the center of the catalyst and the lower case respectively, and these through holes are provided. Insert a stepped screw with a small-diameter threaded portion at the tip from the lower case side through the screw, and insert the small-diameter threaded portion of this stepped screw into the exhaust port that is placed on the outside of the cooker housing and has an opening. By screwing in, the upper case holding the catalyst is mounted in a pressed state inside the cooker housing, so the catalyst device can be installed reliably with a single stepped screw. By using stepped screws, it is not possible to overtighten, and it is possible to reliably confirm when tightening has been completed, making installation and removal extremely easy. In addition, the upper and lower surfaces of the catalyst are held by the upper case and the lower case, and a slight gap is provided between the center of the lower case and the center lower surface of the catalyst when the catalyst device is fully installed. Therefore, during installation, the lower case does not come into contact with the lower surface of the catalyst, and at the time of installation, all the load is applied to the upper case, so it is not applied to the catalyst. Furthermore, since the catalyst is held in the upper and lower cases, and the upper case holds the catalyst under pressure with claws, the claws absorb drop shocks, etc., and as a result, direct shocks are applied to the catalyst. Therefore, there is no risk of damage during manufacture or use, and durability can be improved.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a fish fryer showing an embodiment of the present invention, Fig. 2 is a cross-sectional view of the same, Fig. 3 is a cross-sectional view of the main parts, and Fig. 4 is a cross-sectional view of the main parts shown in Fig. 3. The exploded cross-sectional view and FIG. 5 are perspective views of the main parts. 19...Exhaust port, 21...Catalyst, 23...Lower case, 27...Stepped screw.

Claims (1)

[Scope of utility model registration request] In a cooking device in which a catalytic device for oxidizing oily smoke and odor generated from the cooking device is provided in the exhaust passage for the oily smoke and odor, the catalyst is arranged in a centrally protruding manner such that the central portion has a gap with the lower surface of the catalyst. The catalyst is held by a lower case formed in a concave shape and having a plurality of holes, and an upper case having an opening in the center and a claw formed on the inner periphery of the opening to press the catalyst, A through hole is provided in the center of the catalyst and the lower case, and a stepped screw having a small diameter threaded portion at the tip is inserted from the lower case side through these through holes,
By screwing the small diameter threaded portion of this stepped screw into the exhaust port that is placed on the outside of the cooker housing and has an opening, the upper case holding the catalyst is pushed inside the cooker housing. An oxidation catalyst device mounting device for a cooker, which is installed in a state where the installation is completed, and a slight gap is provided between the central part of the lower case and the central lower surface of the catalyst.