JP2011141077A - Cooking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cooking device having high durability and reliability, wherein magnetic coupling force is prevented from declining, while maintenance workability is so improved as to achieve a quick removal of a filter. <P>SOLUTION: The cooking device includes: a device body 11 having a cooking chamber that is opened and closed with a door 12; a suction opening 14 for a cooling air intake that is provided in a part of the device body 11; and a filter 15 that is placed for covering the suction opening 14. In the cooking device, a guide pin 17 formed with magnetic material and projected in the filter 15 is provided; an insertion hole 20, in which the guide pin 17 is inserted, is provided at the forming part of the suction opening 14; and a permanent magnet 21 is provided in the vicinity of the reverse face of the insertion hole 20, thereby the permanent magnet 21 is prevented from decline of magnetic coupling force and breakage that are caused by dirt to which the permanent magnet 21 is subject in the maintenance work of the filter 15, and, thus durability and reliability of coercive force are secured. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a cooking device in which a filter is detachably attached to a cooling air intake section.

  Conventionally, in this type of cooking device, cooling external air is introduced in order to prevent heating of various electric parts of the control unit. In order to prevent dust and the like from entering, it is common to provide a filter at the outside air introduction part, so that the filter can be removed for maintenance against dirt clogging and oil contamination. .

  Screws are generally used for attachment of the filter, and in the attachment means using screws, solidification of the screws occurs due to rusting or the like, and sometimes the filter cannot be removed. For this reason, there is a configuration in which a permanent magnet is attached to the filter so that the filter can be easily attached and detached (see, for example, Patent Document 1).

  FIG. 5 shows a conventional filter described in Patent Document 1. In FIG. As shown in FIG. 5, the filter 3 has a permanent magnet 4 on one side and is configured to be magnetically attracted to the front wall 2 of the apparatus main body 1.

JP 2007-139305 A

  However, in the conventional configuration, the filter 3 is a part that is removed and used during maintenance. Therefore, in the configuration in which the permanent magnet 4 is held on the surface of the filter 3, dirt such as rust adheres when the filter 3 is removed and cleaned. The magnetic coupling force is reduced, and the permanent magnet is damaged by handling.

  In addition, the filter 3 is often replaced by maintenance and is positioned as a consumable part. However, there is a problem that the part becomes expensive due to adhesion of dirt or damage to the permanent magnet 4.

  SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and is a cooking device that can be easily attached and detached to improve the workability of maintenance and improve the durability and reliability while preventing a decrease in magnetic coupling force. The purpose is to provide.

  In order to solve the above-described conventional problems, a heating cooking apparatus according to the present invention includes an apparatus main body having a cooking chamber that is opened and closed by a door body, a cooling air inlet formed in a part of the apparatus main body, A filter that covers the air intake port, and has a guide pin that is projected from the filter and formed of a magnetic material, and has an insertion hole into which the guide pin is inserted at a site where the air intake port is formed, A permanent magnet is disposed in the vicinity of the back surface of the insertion hole.

This prevents permanent magnets from becoming dirty and lowering the magnetic coupling force during damage to the filter during maintenance, improving durability and reliability of holding force, and simplifying the filter itself. Therefore, parts replacement for maintenance can be performed at low cost.

  The cooking device of the present invention can greatly improve the attachment / detachment performance by holding the filter by magnetic coupling, and can improve the workability in maintenance. In addition, by simplifying the structure of the filter itself, the cost of replacing parts during maintenance can be reduced, and the permanent magnet can be prevented from being contaminated and damaged during maintenance, so that the filter can be held well in the main body at all times. Therefore, it is possible to reliably introduce cooling air and suppress the occurrence of electrical component failures.

The front view of the heat cooking apparatus in Embodiment 1 of this invention The front view which shows the state which removed the filter of the heat cooking apparatus in Embodiment 1 of this invention. Sectional drawing of the filter attachment part in Embodiment 1 of this invention Front view of the cooking device according to Embodiment 2 of the present invention Sectional drawing which shows filter attachment of the conventional heat cooking apparatus

  The first invention comprises an apparatus main body having a cooking chamber that is opened and closed by a door, a cooling air inlet formed in a part of the apparatus main body, and a filter that covers the inlet. A guide pin protruding from the filter and made of a magnetic material is provided, and an insertion hole into which the guide pin is inserted is formed at a portion where the intake port is formed, and a permanent magnet is disposed in the vicinity of the back surface of the insertion hole. As a result, the permanent magnet is not contaminated during maintenance of the filter and the magnetic coupling force is not reduced or damaged, so that the durability and the reliability of the holding force are improved, and the filter itself is simplified and maintained. The parts can be replaced at low cost.

  In addition, an insertion hole is provided at a portion where the cooling air intake port is formed, and a guide pin formed of a magnetic material that is magnetically coupled to the permanent magnet is inserted into the insertion hole to perform positioning. Therefore, magnetic coupling is reliably performed.

  Further, since a place for fixing the permanent magnet to the filter itself becomes unnecessary, the intake port of the filter can be enlarged, the amount of cooling air introduced can be increased, and the cooling performance can be improved.

  In the second invention, in particular, the permanent magnet according to the first invention is arranged on the lower surface facing the guide pin on the back surface of the insertion hole, so that the lower attracting force is applied to the tip of the guide pin. Since a moment acts on the filter body with the insertion hole lower end as a fulcrum, a force repelling the force of peeling off due to the filter's own weight acts, and a gap can be prevented from opening at the filter upper end. .

  In particular, the third invention has a structure in which a plurality of guide pins according to the first or second invention and a plurality of insertion holes into which the guide pins are inserted, and a plurality of magnetic coupling points are arranged, thereby providing a magnetic coupling force. This increases the reliability of the holding force and increases the positioning accuracy, so that the magnetic coupling can be performed more reliably.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a front view of the cooking device according to the first embodiment of the present invention, and FIG. 2 is a front view of the cooking device according to Embodiment 1 of the present invention with the filter removed.

  In the figure, a cooking device employing a high-frequency heating method or the like has a door 12 on the front surface of the device body 11, and opens and closes the front of a cooking chamber (not shown). The apparatus main body 11 has a front wall 13 that is a standing wall continuous to the open edge of the cooking chamber, and a plurality of air inlets 14 are formed therein. The outside air introduced into the apparatus main body 11 from these intake ports 14 is used for cooling the electrical components arranged inside.

  However, if you smoke oil or dust in a kitchen of a restaurant as well as a kitchen of a restaurant as it is, it may adhere to the internal cooling fan and electrical components and solidify to deteriorate its performance, or it may enter the cooking room and become unsanitary. For this purpose, a filter 15 having a card member 16 such as a wire net is covered on the front surface of the air inlet 14.

  The filter 15 has a guide pin 17 formed of a magnetic material on one side, and a notch 18 having an open part on the side is formed on the other side. The notch 17 engages with a fixing pin 19 projecting from the front wall 13 of the apparatus body 11 for positioning, and the guide pin 17 is inserted into an insertion hole 20 provided in the front wall 13.

  FIG. 3 is a cross-sectional view of the filter mounting portion.

  A permanent magnet 21 is disposed below the guide pin 17 inserted in the insertion hole 20 provided in the front wall 13. The guide pin 17 formed of a magnetic material is attracted by magnetic coupling, and the filter 15 is attached. It will be magnetically attracted to the front wall 13 which is a standing wall connected to the open edge of the cooking chamber. At this time, a moment 23 acting downward with the lower end 22 of the insertion hole 20 as a fulcrum is generated in the guide pin 17, so that a force repelling the force 24 that tries to peel off by the weight of the filter 15 and the guide pin 17. This prevents a gap from being opened at the upper end of the filter 15.

  In addition, since the permanent magnet 21 is disposed inside the front wall 13, the permanent magnet is not contaminated even during maintenance of the filter 15, and the magnetic coupling force is not reduced or damaged. The durability and the reliability of holding power are improved.

  In this configuration, the magnetic coupling force of the filter 15 can be freely adjusted depending on the size of the permanent magnet 21 and the length of the guide pin 17, and can be adjusted only with parts that do not appear in the appearance. The magnetic coupling force can be increased without impairing the power.

  Further, since no permanent magnet is fixed to the filter 15, not only can the configuration of the filter 15 be simplified and parts can be replaced at a low cost, but also the card material 16 such as a wire mesh can be enlarged, so The amount introduced can be increased and the cooling performance can be improved.

(Embodiment 2)
FIG. 4 is a front view of the cooking device according to the second embodiment of the present invention. The components having the same functions as those in FIG. 1 are denoted by the same reference numerals, and the first embodiment is referred to for specific description. .

  That is, in the present embodiment, the filter 15 has a guide pin 17 formed of a magnetic material at both ends, and the insertion hole 20 and the permanent magnet 21 are respectively provided in association with the guide pin 17 so as to be magnetically coupled. Is to do.

According to this configuration, positioning is performed at both ends by the guide pin 17 and the insertion hole 20, the magnetic coupling force is increased by increasing the number of magnetic coupling portions, and the filter 15 is more reliably fixed.

  Further, since the positioning is fixed by simply inserting the fixing method without sliding, it is easy to remove at the time of maintenance, and the installation failure due to the breakage of the fixing pin 19 can be prevented.

  In the present embodiment, the description has been made with the configuration of two magnetic coupling portions at both ends. However, the location and number of magnetic couplings can be freely combined depending on how they are used.

  As described above, the cooking device according to the present invention can greatly improve the attachment / detachment performance by holding the filter by magnetic coupling, and can improve the workability in maintenance, and can prevent the permanent magnet from becoming dirty and damaged during maintenance. By preventing it, it becomes possible to improve the durability of the filter and the reliability of the holding force, so that it can be applied to applications such as equipment equipped with the filter in addition to the cooking device.

DESCRIPTION OF SYMBOLS 11 Apparatus main body 12 Door body 14 Air inlet 15 Filter 17 Guide pin 20 Insertion hole 21 Permanent magnet

Claims (3)

An apparatus main body having a cooking chamber that is opened and closed by a door, a cooling air inlet formed in a part of the apparatus main body, and a filter that covers the inlet.
A cooking pin having a guide pin projecting from the filter and formed of a magnetic material, and an insertion hole into which the guide pin is inserted at a portion where the intake port is formed, and a permanent magnet disposed near the back surface of the insertion hole apparatus. The cooking device according to claim 1, wherein the permanent magnet is disposed on the back surface of the insertion hole and on the lower side facing the guide pin. The cooking device according to claim 1 or 2, wherein a plurality of guide pins and a plurality of insertion holes for inserting the guide pins are configured, and a plurality of magnetic coupling points are disposed.