JP2013104587A - Induction heating cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting structure of a fixing bracket, the structure that enables the fixing bracket to be mounted on a body without requiring a tool, and does not easily come off when the body is incorporated into a kitchen.SOLUTION: The fixing bracket 29 is made to slide in a lateral direction and mounted on sides 28a, 28b, 28c, 28d of an outer shell 27 of a body 21 below a top plate 23. The fixing bracket includes: fitting first and second fitting parts 33, 36 through first and second fitting holes 37, 38 provided at the outer shell 27 and then being made to slide in the lateral direction to be fitted with the outer shell 27; and bringing first and second engagement parts 41, 42, which are separately arranged from the first and second fitting parts 33, 36, into engagement with the outer shell 27 at a position in the vicinity of the terminal of a sliding width where the first and second fitting parts 33, 36 are fitted with the outer shell 27 so as to be mounted and held at the outer shell 27 with the fitting parts and the engagement parts.

Description

  The present invention relates to an induction heating cooker used by being incorporated in a kitchen of a general household.

  Incorporation of the cooker body into the kitchen is an installation where the main body is inserted into the kitchen opening from the top, and there is no opening such as an exhaust port on the top surface of the cooker body, and there is no front exposed surface such as a grill. This invention relates to a configuration for fixing the induction heating cooker to the kitchen.

  Conventionally, as shown in FIG. 13, this type of induction heating cooker has a flange-like shape in which a cooker main body 1 is inserted and arranged from above into a square hole portion formed in a kitchen top plate 2 and provided on a side shell of the main body 1. A fixing screw 4 that is tightened from below to above is disposed on the fixing bracket 3, and the cooker body 1 is fixed to the kitchen by tightening so that the tip of the fixing screw 4 is pressed against the back of the kitchen top 2. (See Patent Document 1).

Japanese Patent Application Laid-Open No. 05-041273

  However, the conventional configuration requires a tool such as a screwdriver when the fixing screw 4 is fastened to the fixing bracket 3 from below to above. Further, the fastening screws 4 constituting a part of the fixture 3 need to be tightened from the back side inside the kitchen after the cooker body 1 is inserted and arranged in the kitchen top plate 2. Installation work to tighten 3 was difficult.

  The present invention solves the above-described problems in the prior art, and can be easily attached to a main body without requiring a tool for attachment, and is not easily detached due to stress generated when the main body is incorporated into a kitchen. The mounting structure of the metal fitting is provided.

In order to solve the conventional problem, the cooking device of the present invention is:
The main body is inserted and installed in the kitchen top plate opening from above, and the fixing bracket is attached to the side of the main body and presses between the main body and the kitchen top plate end surface to fix the main body. The fitting part provided in the fixing bracket is slid laterally after passing through the fitting hole provided in the outer shell and fitted in the outer case. At a position near the end of the sliding width to be fitted with the outer shell, an engaging portion provided separately from the fitting portion is engaged with the outer shell, and the fitting portion and the engaging portion are mounted and held on the outer shell. It consists of

  The induction heating cooker of the present invention has a mounting structure for fixing metal fittings that can be easily attached to the main body without requiring a tool for attachment, and that does not easily come off due to stress generated when the main body is incorporated into a kitchen. provide.

External appearance perspective view of the induction heating cooking appliance in Embodiment 1 of this invention Front perspective view of the mounting bracket Partial sectional view of the same Rear perspective view of the bracket mounting part Perspective view of the main part Front perspective view of the fixing bracket Rear perspective view of the fixing bracket Rear view of the fixing bracket Cross section of the fixing bracket The fragmentary sectional view of the induction heating cooking appliance in Embodiment 2 of this invention Front perspective view of the fixing bracket Rear perspective view of the fixing bracket Cross-sectional view of an induction heating cooker in a conventional example

  1st invention inserts and installs a main body from the upper direction to the top-plate opening of a kitchen, and presses between the said main body and a kitchen top-plate end surface with the fixing metal fitting attached to the side surface of a main body, and fixes the said main body The fixing bracket is slid in the lateral direction on the side surface of the outer shell, and the fitting portion provided in the fixing bracket is slid in the lateral direction after passing through the fitting hole provided in the outer shell to be fitted with the outer shell. The engagement portion provided separately from the fitting portion engages with the outer shell at a position near the end of the sliding width where the fitting portion engages with the outer shell. The outer shell is mounted and held. Accordingly, it is possible to provide a mounting structure for a fixing metal fitting that can be easily attached to the main body without requiring an attachment tool and that does not easily come off due to stress generated when the main body is assembled in a kitchen.

  In the second invention, in particular, in the first invention, the size of the upper and lower fitting portions of the surface in contact with the outer shell of the main body formed on the fixture is made larger than the upper portion. As a result, when the main body is attached to the kitchen, a frictional force between the surface of the fixing bracket and the kitchen generates a rotational moment in the horizontal direction in which the lower side turns to the outside of the main body, but the size of the fitting part is large on the lower side. The holding force against the rotational moment can be increased.

  In a third aspect of the invention, in particular, in the second aspect of the invention, the fixing bracket is made of an elastic material having a substantially cross-sectional shape in the longitudinal direction. As a result, when the main unit is installed in the kitchen, the main unit is fixed by the elastic force of the fixing bracket simply by inserting and setting the main unit from top to bottom. This also eliminates the need for a mounting tool.

  According to a fourth aspect of the present invention, in particular, in the first to third aspects of the present invention, a flat surface that overlaps the outer surface of the main body is provided on the mounting surface of the fixing metal fitting with the main body outer surface. The main body holding force acts in the pressing direction. As a result, no force acts in the direction of separating the flat portion of the fixing fitting fitting portion and the main body outline, and no force acts in the direction of pressing the engaging portion and the main body engagement hole end surface. The fixing bracket cannot be removed after fixing the kitchen.

  According to a fifth aspect of the present invention, in the first to fourth aspects of the invention, the top plate protection frame exposed on the top surface of the kitchen is electrically insulated from the outer shell of the main body. Thus, when the main body is assembled in the kitchen, an electrically insulating cover is provided at a portion that comes into contact with the kitchen and is exposed from the outer edge of the fixing bracket and covers the outer surface. Thereby, even when the grounding of the main body is incomplete, an electrical short circuit between the main body outline and the kitchen is avoided.

(Embodiment 1)
1 is an external perspective view of an induction heating cooker according to Embodiment 1 of the present invention, FIG. 2 is a front perspective view of a fixing bracket mounting portion, FIG. 3 is a sectional view of the fixing bracket mounting portion, and FIG. 4 is a fixing bracket mounting portion. FIG. 5 is a perspective view of the main part of the outer shell, FIG. 6 is a front perspective view of the fixing bracket, FIG. 7 is a rear perspective view of the fixing bracket, FIG. 8 is a rear view of the fixing bracket, and FIG. FIG. 10 is a partial sectional view of a fixing bracket according to Embodiment 2 of the present invention, FIG. 11 is a front perspective view of the same, and FIG. 12 is a rear perspective view of the fixing bracket.

  1 to 9, the main body 21 of the induction cooker is used by being inserted and installed from above into an opening provided in a top plate 22 of a kitchen or the like. The upper surface of the main body 21 is made of crystallized glass. The periphery of the top plate 23 is covered with a top plate unit 25 surrounded by a top plate protection frame 24 made of stainless steel. On the top plate 23, heating portions 26a, 26b, 26C, and 26d are printed. Inside the outer shell 27 of the main body, a heating coil unit corresponding to the heating parts 26a, 26b, 26C, and 26d, a circuit unit that supplies high-frequency power to the heating coil unit, a cooling fan that blows cooling air to the circuit unit, and the like are provided. ing.

  A fixing bracket 29 is attached to the side surfaces 28a to 28d (28c and 33d are not shown) of the main body 21, and the fixing bracket 29 is compressed between the side surfaces 28a to 28d of the main body 21 and the end surface of the top plate 22 of the kitchen. The side surfaces 28 a to 28 d of the main body 21 and the end surface of the kitchen top plate 22 are pressed to fix the main body 21 to the kitchen top plate 22. The fixing bracket is slid laterally on the side surface of the outer shell, and the fitting portion provided on the fixing bracket is slid in the lateral direction after passing through the fitting hole provided in the outer shell. The engagement portion provided separately from the fitting portion engages with the outer shell at a position near the end of the sliding width where the fitting portion fits with the outer shell, and the fitting portion and the engaging portion And is mounted and held on the outer shell. The fixing bracket 29 is attached to the side surfaces 28a to 28d of the outer shell 27 by sliding in the lateral direction. The structure for attaching the fixing bracket 29 to the side surfaces 28a to 28d of the outer shell 27 of the main body is as follows.

  As a representative explanation, a mounting configuration of the fixing bracket 29 attached to the side surface 28a of the outer shell 27 will be described.

  A first fitting portion composed of a first fitting plane 31 and a first inclined surface 32 is provided on the rear surface 30 of the fixing bracket 29 by providing a step A slightly larger than the thickness of the steel sheet metal constituting the outer shell 27. 33 and a second fitting portion 36 including a second fitting plane 34 and a second inclined surface 35 with a step A similarly.

  The side surface 28a is provided with a handle-like first fitting hole 37 and a second fitting hole 38, and the plane portion of the side surface 28a in which the first fitting hole 37 and the second fitting hole 38 are deformed is as follows. The first convex plane 39 and the second convex plane 40 are used. The first fitting portion 33 and the second fitting portion 33 are aligned with the first fitting portion 37 and the second fitting portion 36 of the fixing fitting 29 is aligned with the second fitting hole 38. The fixing bracket 29 is laterally extended toward the first inclined surface 32 and the second inclined surface 35 so that the thickness of the first convex plane 39 of the side surface 28a overlaps the step A with the fitting portion 36, respectively. Slide in the direction.

  The fixing bracket 29 has a first engagement portion 41 and a second engagement portion 42 in which the rear surface 30 is formed into a convex shape in a direction opposite to the first inclined surface 32 and the second inclined surface 35. At the position near the end of the sliding width where the fitting portion 33 and the second fitting portion 36 are fitted and slid into the first fitting hole 37 and the second fitting hole 38, the first engaging portion 41 is The first fitting hole 37 and the second engaging portion 42 are engaged with the second fitting hole 38, respectively, and positioning and holding in the left-right direction are performed, and the fixing bracket 29 is lightly touched by a person or lightly hits an object. It does not come off from the outer shell 27 of the main body.

  The fixing fitting 29 includes a first fitting hole 37 and a second fitting hole 38, including the first fitting portion 33 and the second fitting portion 36, and the first engaging portion 41 and the second engaging portion 42. Is attached and held on the outer shell 27 of the main body 21.

  FIG. 4 shows a state where the fixing bracket 29 is attached to the side surface 28a as viewed from the inner surface side of the side surface 28a.

  The same applies to the other fixing brackets 29 attached to the side surfaces 28a to 28d of the outer shell 27. In the present embodiment, the number of the fixing brackets 29 is six in total, two each for the front side surface 28a and the rear side surface 28c, and one each for the right side surface 28b and the left side surface 28d. However, if the main body 21 and the top plate 22 of the kitchen are fixed, the total number of the fixing brackets 29 is not limited to this.

  With the above configuration, when the fixing bracket 29 is attached to the side surfaces 28a to 28d of the outer shell 27, the fixing bracket 29 can be easily attached to the outer shell 27 without the need for a mounting tool such as a driver.

  Further, when the main body 21 is incorporated into the opening of the top plate 22 of the kitchen, the fixing bracket 29 is first attached to the main body 21 and then the main body 21 is inserted into the opening of the top plate 22 and pushed downward. The fixed metal fitting 29 that slides directly on the thickness end face of the steel plate is subjected to a force to shift upward. The first fitting portion 33 of the fixing bracket 29 is on the inner surface of the first convex plane 39 of the outer side surfaces 28a to 28d, and the second fitting portion 36 of the fixing bracket 29 is the second projection of the outer side surfaces 28a to 28d. A plate thickness end surface on the lower side of the second convex plane 40 is attached to the inner surface of the flat surface 40 by sandwiching the plate thicknesses of the outer side surfaces 28a to 28d with a step A between the rear surface 30 of the fixing metal plate 29 and the fixing metal plate 29. Since it hits the level difference A between the rear surface 30 and the second fitting portion 36, the fixing bracket 29 can be easily mounted against the force that the fixing bracket 29 tends to shift upward.

  Furthermore, since the fixing bracket 29 is slid in the lateral direction with respect to the side surfaces 28a to 28d of the outer shell 27, the vertical mounting space only needs to accommodate the vertical width of the fixing bracket 29. For example, an additional space such as a screwing space for fixing the fixing bracket 29 is not required, and the height dimension of the side surfaces 28a to 28d can be reduced, which contributes to the thinning of the main body.

  Moreover, it becomes a surface which contact | connects the side surfaces 28a-28d of the outer shell 27, The 1st fitting part 33 containing the 1st fitting plane 31 formed in the lower part of the fixing metal fitting 29, and the 2nd fitting plane 32 formed in the upper part are included. The size of the second fitting portion 36 is such that the lower first fitting portion 33 is larger than the upper second fitting portion 36.

  When the main body 21 is incorporated into the top plate 22 of the kitchen, rotation in the horizontal axis direction in which the lower side of the fixing bracket 29 rotates outward from the main body by the frictional force between the outer surface of the fixing bracket 29 and the thickness end surface of the opening of the kitchen top plate 22. Although a moment is generated, the size of the first fitting portion 33 and the second fitting portion 36 is such that the lower first fitting portion 33 is larger than the upper second fitting portion 36, so that the rotational moment force is reduced. It receives on the contact surface of the 1st convex plane 39 of the side surfaces 28a-28d of the main body 21, and the 1st fitting plane 31 of the fixing bracket 29. Thereby, the holding | maintenance proof stress of the fixing bracket 29 with respect to a rotational moment force can be enlarged rather than the case where the magnitude | size of the 1st fitting part 33 and the 2nd fitting part 36 is the same.

  As shown in FIG. 9, the vertical cross-sectional shape of the fixing bracket 29 is substantially letter-shaped, the lower side is a bent portion 43, and the enlarged portion 45 that is most outwardly convex to the upper end 44 is It has become. The fixing metal 29 is an elastic material made of stainless steel for springs in consideration of corrosion resistance. For obtaining elastic force, steel for steel may be used. Moreover, if it is an elastic material, it will not be restricted to a metal material.

Thereby, when the main body 21 is attached to the top plate 22 of the kitchen, the main body 21 is attached to the top plate 22 of the kitchen.
The bending portion 43 is deformed by the elastic force of the fixing bracket 29 simply by inserting the opening downward from the opening and pushing the body 21 between the side faces 28a to 28d of the body 21 and the thickness end face of the opening of the kitchen top plate 22. A pressing force acts between them to fix the main body 21. In this way, in addition to attaching the fixing bracket 29 to the main body 21, when attaching the main body 21 to the top plate 22 of the kitchen, an attachment tool can be made unnecessary.

  If the cross-sectional shape in the vertical direction of the fixing metal 29 is a bent portion 43 having a sharply bent portion 43 on the lower side and an enlarged portion 45 that protrudes outward most in the middle to the upper end 44, the bent portion 43. The inclined surface from the enlarged portion 45 to the enlarged portion 45 serves as an invitation surface when the main body 21 is inserted and pushed downward from above the opening of the top plate 22 of the kitchen, and the upper end 44 is more than the enlarged portion 45 in the middle. Since it is close to 28d, it does not easily hit the thickness end face of the kitchen top plate 22 opening, and when the main body 21 is tilted when the main body 21 is assembled into the kitchen top plate 22, or the main body 21 is installed in the kitchen. When removing from the top plate 22, the upper end 44 prevents the thickness end face of the opening of the top plate 22 of the kitchen from being damaged.

  Further, a rear surface 30 which is an attachment surface with the outer side surfaces 28a to 28d of the fixing bracket 29 is a flat portion 30 that overlaps the side surfaces 28a to 28d of the outer shell 27 of the main body, and the main body 21 is attached to the top plate 22 of the kitchen. When assembled and mounted, a force is applied in a direction in which the rear surface 30 of the fixing bracket 29 is pressed against the side surfaces 28a to 28d of the outer shell 27 of the main body by the elastic deformation pressing force with the cross section of the fixing bracket 29 being substantially letter-shaped. Works.

  As a result, a force acts in a direction in which the rear surface 30 of the fixing bracket 29 and the side surfaces 28a to 28d of the main body are pressed. After fixing the main body 21 to the kitchen top plate 22, the fixing bracket 29 is fixed to the outer side surface 28a. No force acts in the direction away from ~ 28d. Further, there is also a force in the direction in which the first engaging portion 41 and the second engaging portion 42 of the fixing bracket 29 are pressed against the first fitting hole 37 and the second fitting hole 38 of the outer side surfaces 28a to 28d, respectively. Since it does not act, after the main body 21 is fixed to the top plate 22 of the kitchen, the fixing bracket 29 is not easily detached, and the fixing bracket 29 is provided with a mounting configuration that is easy to mount and difficult to be removed in actual use.

(Embodiment 2)
10 to 12, the induction cooker main body 21, top plate 22, top plate 23, top plate protection frame 24, top plate unit 25, heating parts 26a to 26d, outer shell 27, side surfaces 28a to 28d, fixing bracket 29 , Rear surface 30, step A, first fitting plane 31, first inclined surface 32, first fitting portion 33, second fitting plane 34, second inclined surface 35, second fitting portion 36, first fitting The joint hole 37, the second fitting hole 38, the first convex plane 39, the second convex plane 40, the first engaging portion 41, the second engaging portion 42, the bent portion 43, the upper end 44, and the enlarged portion 45 are implemented. This is the same as the first embodiment.

  The difference from Embodiment 1 is between the outer shell 27 housed in the kitchen top plate 22 and the top plate unit 25 exposed on the top surface of the kitchen top plate 22 and easily touched when the main body 21 is used. It is the point which gave the electrical insulation structure.

  Specifically, a portion of the top plate unit 25 that is a constituent member that connects the top plate unit 25 and the outer shell 27, between the under frame 46 that holds the back side of the top plate 23 and the outer shell 27. An insulating sheet 47 made of an electrically insulating resin sheet is inserted. Further, the fixing screw 48 between the top plate unit 25 and the outer shell 27 is fixed to the holding metal fitting 50 via an insulating spacer 49 attached to the under frame 46 so that the outer shell 27 and the under frame 46 are fixed. Electrical connection through the screw 48 is prevented. The insulating spacer is made of polypropylene resin, which is an electrically insulating material, but may be other resin material or porcelain material. As described above, the outer shell 27 and the top plate unit 25 are electrically insulated.

  In this way, the top plate protection frame exposed on the top surface of the kitchen is electrically insulated from the outer shell of the main body. In this case, the fixing bracket 29 becomes the outer surface when mounted on the outer shell 27, and the main body 21 is placed on the top plate 22 of the kitchen. A cover 51 is attached via an adhesive layer in a range including an enlarged portion 45 which is a portion that comes into contact with the top plate 22 of the kitchen when assembled. The cover 51 is an electrically insulating and flexible resin film made of, for example, polyethylene. The cover 51 is sized to be exposed from the outer edge of the fixing bracket 29, and the range including the enlarged portion 45 covers the outer surface of the fixing bracket 29.

  Thereby, the top plate 22 of the kitchen is a conductor such as stainless steel, and even if the ground wire included in the power connection line of the main body 21 is incompletely connected due to incomplete installation work, The cover 51 avoids an electrical short circuit between the outer shell 27 and the top plate 22 of the kitchen. In some cases, one end of a capacitor constituting the electrical noise reduction circuit included in the main body 21 is electrically connected to a metal shell 27. Even if the leaked current value is safe for the human body depending on the capacitance of the capacitor. When the outer shell 27 is incompletely grounded, an electric shock may be felt when the human body touches the main shell 26. If the top plate 22 of the kitchen that is in contact with the fixing bracket 29 is a conductor, if the grounding of the outer shell 27 is incomplete, a minute current leaking through the capacitor constituting the electrical noise reduction circuit leaks into the kitchen, and the human body is in the kitchen. It is possible to prevent an electric shock from being felt when the top plate 22 is touched.

  As described above, the induction heating cooker according to the present invention inserts and installs the main body into the kitchen top plate opening from above, and presses between the main body and the kitchen top plate end face with the fixing bracket attached to the side surface of the main body. In order to fix the main body, it is possible to easily attach the fixing bracket to the main body without the need for an installation tool, and the fixing bracket mounting configuration does not easily come off due to the stress generated when the main body is installed in the kitchen. Since it is provided, it can be applied to uses such as a heating cooker incorporated in a kitchen.

21 Main body 22 Top plate 23 Top plate 24 Top plate protection frame 27 Outer shell 28a, 28b, 28c, 28d Side surface 29 Fixing bracket 30 Rear surface (flat portion)
33 1st fitting part (fitting part)
36 Second fitting part (fitting part)
37 First fitting hole (fitting hole)
38 Second fitting hole (fitting hole)
41 1st engaging part (engaging part)
42 2nd engaging part (engaging part)
51 cover

Claims (5)

The main body is inserted and installed into the top plate opening of the kitchen from above, and the main body is composed of a top plate for placing a cooking utensil such as a pan on the upper surface, and a substantially box-shaped outer shell below the top plate. A fixing coil mounted on the side surface of the main body, the heating coil unit being arranged inside the main body and a circuit unit for supplying high-frequency power to the heating coil unit. For fixing the main body by pressing between the main body and the end surface of the kitchen top plate, the fixing bracket is slid laterally on the side surface of the outer shell, and the fitting portion provided on the fixing bracket is provided with the fitting portion. After sliding through the fitting hole provided in the outer shell and sliding in the lateral direction, the outer shell is fitted to the outer shell, and the fitting portion is positioned near the end of the sliding width where the fitting portion is fitted to the outer shell. A separate engaging part engages with the outer shell, Induction heating cooker in the fitting portion and the engaging portion formed by mounted retained in the outer. The induction heating cooker according to claim 1, wherein the upper and lower surfaces of the main body formed on the fixing metal fitting come into contact with the outer shell, and the lower portion is larger than the upper portion. The induction heating cooker according to claim 2, wherein the fixing bracket is made of an elastic material having a substantially cross-sectional shape in the vertical direction. A mounting surface of the fixing metal fitting with the outer shell of the main body is provided with a flat portion that overlaps the outer outer surface of the main body, and when the main body is fixed to the kitchen, the main body holding force is applied in a direction to press the flat portion. The induction heating cooker according to any one of claims 1 to 3, wherein the cooking device is acted. The top plate protection frame exposed on the top surface of the kitchen is electrically insulated from the outer shell of the main body, and the fixing bracket is an outer surface when the outer shell is attached to the main body. The induction heating cooker of any one of Claims 1-4 which provide the electrically insulating cover which exposes from the outer edge of the said fixing metal fitting, and covers the outer surface in the part which contacts the said kitchen at the time of an assembly.