JP3617695B2 - Case for electromagnetic cooker - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to an electromagnetic cooker and its components, and more particularly, to a structure for making the distance between the coil surface of a heating coil and the back surface of a top plate uniform, and a housing structure for improving maintainability.
[0002]
[Prior art]
FIG. 6 shows a cross-sectional structure diagram of a conventional electromagnetic cooker. In this type of electromagnetic cooker, a top plate 42 for placing a cooking pan or the like to be heated is fixed to an opening step portion of a casing 41 for an electromagnetic cooker, and a predetermined portion of an inner bottom portion of the casing 41 is fixed. In addition, a plurality of receiving brackets 45 having free ends are disposed, and a box-shaped unit housing 44 constituting an electromagnetic cooker unit is parallel to the top plate 42 at the free ends of the receiving brackets 45. It is attached as follows. The electromagnetic cooker unit is configured to include a flat spiral heating coil 43 that has a built-in power source in the unit housing 44 and receives supply of high-frequency power on the upper bottom portion of the unit housing 44. When in use, the power supply unit of the electromagnetic cooker unit is driven to supply high-frequency power to the heating coil 43, and the cooker pan placed on the top plate 42 is induction-heated.
[0003]
In general, in induction heating, the distance between the heating coil and the object to be heated greatly affects the heating power. In the case of the electromagnetic cooker shown in FIG. 6, the interval between the coil surface of the heating coil 43 (surface portion facing the back surface of the top plate 42, the same applies hereinafter) and the back surface of the top plate 42, that is, the attachment of the unit housing 44 The difference between the dimension from the part to the fixed part of the top plate 42 and the height dimension of the electromagnetic cooker unit from the coil surface of the heating coil 43 is a factor that determines the heating power.
[0004]
[Problems to be solved by the invention]
As described above, the conventional electromagnetic cooker has a structure in which the electromagnetic cooker unit is fixedly attached to the electromagnetic cooker casing 41. Therefore, the processing accuracy of the electromagnetic cooker casing 41 and the unit casing 44, or the receiving Depending on the processing accuracy of the metal fitting 45, the distance between the coil surface of the heating coil 43 and the back surface of the top plate 42 is not necessarily uniform over the entire heating effective region, and as a result, the heating power varies depending on the portion where the cooking pan is placed. There was a problem that occurred.
In addition, when the electromagnetic cooker unit is replaced or the power supply unit in the unit casing is inspected, the electromagnetic cooker casing 41 must be disassembled each time, and the maintainability is not good. there were.
[0005]
An object of the present invention has been made in view of the above problems, it is to provide an electromagnetic cooker housing for obtaining good electromagnetic cooker maintainability.
[0006]
[Means for Solving the Problems]
Electromagnetic cooker Yokatamitai of the present invention, the top plate and, rotating a receiving unit mounting surface for mounting the induction heating cooker unit is formed base, the cradle of one end to the casing side part A support body that is freely supported, and is attached to the opposite end of the cradle, and when stretched, makes the unit mounting surface of the cradle parallel to the top plate, and when bent, the cradle A bendable / extendable crank mechanism that lowers the position of the opposite end of the base relative to the position of one end of the base and tilts the base, and the base is tilted by bending the crank mechanism. A unit guide hole for guiding the electromagnetic cooker unit in a space on the opposite end of the cradle to be formed; An insulating spacer having a certain thickness may be fixed to the back surface of the top plate in advance.
[0007]
The following can be used for the electromagnetic cooker unit used in such an electromagnetic cooker casing. The electromagnetic cooker unit includes, for example, a box-shaped unit casing, a power supply unit accommodated in the unit casing, and a flat type that receives supply of high-frequency power from the power supply unit on an upper bottom portion of the unit casing. A spiral heating coil, and an elastic body disposed between the back surface of the heating coil and the upper bottom of the unit casing, and the coil surface of the heating coil has a constant thickness by the urging force of the elastic body. It is configured to be pressed against the back surface of the top plate through an insulating spacer.
[0008]
As another example, the electromagnetic cooker unit includes a box-shaped unit housing, a power supply unit accommodated in the unit housing, and high-frequency power supplied from the power supply unit on an upper bottom portion of the unit housing. A flat spiral heating coil to be received, and an elastic body disposed between a lower bottom portion of the unit casing and a mounting portion to the electromagnetic cooker casing, and the heating coil is urged by an urging force of the elastic body. The coil surface is configured to be pressed against the back surface of the top plate through an insulating spacer having a constant thickness.
When the electromagnetic cooking unit such as these is provided, the distance between the unit mounting surface when the crank mechanism is extended and the back surface of the top plate is the electromagnetic cooking when the elastic body is de-energized. Configured to be smaller than the height of the container unit.
[0009]
[Action]
Regardless of the relative positional relationship between the coil surface of the heating coil and the back surface of the top plate, the thickness of the insulating spacer is the distance between them. Therefore, the interval is made uniform by making this thickness constant. When a plurality of elastic bodies are attached along the peripheral edge of the back surface of the heating coil, the position of the coil surface of the heating coil easily follows the expansion and contraction of each elastic body.
[0010]
Moreover, since the coil surface of the heating coil is pressed against the back surface of the top plate through the insulating spacer from the back surface side by the biasing force of the elastic body, the electromagnetic cooker unit of the present invention is used as the case for the electromagnetic cooker. An electromagnetic cooker with no variation in heating power can be obtained simply by mounting it on.
[0011]
Further, in the electromagnetic cooker casing of the present invention, when the crank mechanism is bent, the position of one end of the cradle is maintained by the support, while the position of the opposite end is relatively lowered. Therefore, the cradle is tilted, and the electromagnetic cooker unit is conveyed from the space on the opposite end to the outside of the casing through the unit guide hole. At the time of mounting, after the electromagnetic cooker unit is transported from the unit guide hole to the space on the opposite end, the crank mechanism is extended. Thereby, replacement | exchange of an electromagnetic cooker unit is performed very easily.
[0012]
【Example】
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
(First Example)
Fig.1 (a) is principal part sectional drawing of the electromagnetic cooker unit which concerns on the 1st Example of this invention. As shown in this figure, in the electromagnetic cooker unit 10 of this embodiment, one end of an elastic body 15 such as a spring or a cushion is fixed to an upper bottom portion of a unit housing 11 having a built-in power supply unit with a mounting screw 16. In addition, a flat spiral heating coil 13 and a spacer 14 having a certain thickness are attached to the other end of the elastic body 15 via an insulating board 12. The spacer 14 is a plurality of square bars made of an insulating material, for example, and these are arranged on the coil surface of the heating coil 13. A flat plate shape or a chip shape can also be used. Usually, a plurality of elastic bodies 15 having the same characteristics are provided along the peripheral edge of the back surface of the heating coil 13. However, for example, a single spring may be used when a spring having a large diameter is used.
[0013]
With such a structure, the heating coils 13 are pushed upward from the back side by the individual elastic bodies 15, but a part of the elastic bodies 15 are partially energized (contracted), and the coil surface of the heating coils 13. It is also easy to change the relative position of. In addition, although illustration is abbreviate | omitted, the heating coil 13 is electrically connected with the power supply part in the unit housing | casing 11, and high frequency electric power is supplied at the time of a drive.
[0014]
FIG. 1B shows a cross-sectional view of the main part when the above-described electromagnetic cooker unit 10 is mounted on the electromagnetic cooker casing 1. The illustrated example shows a state in which the elastic body 15 is contracted by mounting and the coil surface of the heating coil 13 is pressed against the back surface of the top plate 2 via the spacer 14. In this case, since the elastic body 15 is urged by being contracted to an interval determined by the spacer 14, the interval between the coil surface of the heating coil 13 and the back surface of the top plate 2 is uniquely determined by the thickness of the spacer 14. Therefore, the distance between the coil surface of the heating coil 13 and the back surface of the top plate 2 is always uniform regardless of the processing accuracy of the mounting mechanism of the electromagnetic cooker casing 1 or the unit casing 11 or the electromagnetic cooker unit 10. Variation in heating power is suppressed.
[0015]
Next, the detailed structure of the case 1 for an electromagnetic cooker for mounting the electromagnetic cooker unit 10 of this embodiment will be described with reference to FIGS. 2A is a cross-sectional structure diagram of the electromagnetic cooker casing 1 in a normal use state, and FIG. 2B is a cross-sectional structure diagram when the electromagnetic cooker unit 10 is taken out. As shown in these drawings, the electromagnetic cooker casing 1 according to this embodiment includes a cradle 4 on which a unit placement surface for placing the electromagnetic cooker unit 10 is formed, and one end of the cradle 4. the supporting body 6 for rotating rotatably supported by the side surface of the casing 1, (the opposite end of the end portion supported by the support 6, the same applies hereinafter) opposite end of the cradle 4 is attached to bending And a free crank mechanism 5. The cradle 4, the crank mechanism 5, and the support 6 constitute an elevating / fixing jig for changing the gradient of the unit mounting surface.
[0016]
The crank mechanism 5 changes the gradient of the unit mounting surface of the cradle 4 with the support body 6 as a fulcrum. In addition to the structure for displacing the positions of both ends of one crank plate as illustrated in FIG. As illustrated in FIG. 3, a structure in which the two crank plates 5A and 5B are connected and the position of the connecting portion is displaced, or other similar mechanisms can be used. In FIG. 3, a broken line indicates a bent state, and a solid line indicates a straightened state. A known method can be used to switch the bending and stretching of the crank mechanism 5.
When the crank mechanism 5 is extended, that is, in the state shown in FIG. 2A, the unit mounting surface of the cradle 4 and the back surface of the top plate 2 are parallel, and the distance of the elastic body 16 is reduced. It is made to become smaller than the height of the electromagnetic cooker unit 10 when it is energized and the heating coil 13 is pushed up in the height direction. This is because when the electromagnetic cooker unit 10 is placed on the unit mounting surface of the cradle 4 and the crank mechanism 5 is extended, the elastic body 15 acts and the coil surface of the heating coil 13, the spacer 14 and the top. This is because the back surface of the plate 2 is in pressure contact.
[0017]
The electromagnetic cooker casing 1 also has a unit guide hole 3 formed in the side surface. The shape dimension of the unit guide hole 3 is a necessary and sufficient dimension for the electromagnetic cooker unit 10 to move in and out of the casing, and the shape portion is determined by the electromagnetic cooker unit 10 when the crank mechanism 5 is bent. A part that can move in and out of the housing.
[0018]
In the case of the electromagnetic cooker casing 1 having such a structure, when the electromagnetic cooker unit 10 being mounted is taken out, the crank mechanism 5 is bent as shown in FIG. Then, the position of one end of the cradle 4 is maintained by the support 6, while the position of the opposite end is relatively lowered, so that the cradle 4 is tilted and the electromagnetic cooker unit 10 is unit guided from the space above the opposite end. It is automatically conveyed through the hole 3 in the direction indicated by the arrow. At the time of mounting, the electromagnetic cooker unit 10 is manually conveyed from the unit guide hole 3 to the space on the opposite end and positioned, and then the crank mechanism 5 is extended. If it does in this way, exchange of electromagnetic cooker unit 10 at the time of maintenance will become very easy.
[0019]
2A and 2B show a state in which the spacer 14 is provided in advance in the electromagnetic cooker unit 10, this spacer 14 is always fixed to the electromagnetic cooker unit 10 side. However, it is sufficient to be interposed between the coil surface of the heating coil 13 and the back surface of the top plate 2 at the time of mounting. Moreover, as shown in FIG. 4, you may arrange | position previously to the housing | casing 1 side for electromagnetic cookers. In this case, a spacer 14 having a thickness necessary for obtaining a required heating power is fixed to the back surface of the top plate 2.
[0020]
(Second embodiment)
Next, a second embodiment of the present invention will be described. In this embodiment, the electromagnetic cooker unit having the structure shown in FIG. 6 is improved. That is, as shown in FIG. 5, one end of a plurality of elastic bodies 35 is fixed to the lower bottom of the unit housing 44, and the other end of each elastic body 35 is fixed to the board 32. The board 32 is provided in consideration of ease of mounting, and may be omitted depending on circumstances.
When the electromagnetic cooker unit having such a structure is attached to, for example, the electromagnetic cooker casing 1 having the structure shown in FIG. 2 pressed against the back. Therefore, the variation in heating power can be suppressed as in the case of the first embodiment. Of course, the above-described spacer 14 may be disposed on the coil surface of the heating coil 43 of the electromagnetic cooker unit.
[0021]
【The invention's effect】
As is clear from the above description, according to the electromagnetic cooker of the present invention, the coil surface of the heating coil is pressed against the back surface of the top plate through the insulating spacer having a constant thickness, so that the distance between the two is the case. Regardless of the mechanical processing accuracy such as, it is always constant, and it is possible to prevent the occurrence of variations in heating power.
[0022]
Moreover, since the elastic body was arrange | positioned in the predetermined | prescribed site | part of an electromagnetic cooker unit, the electromagnetic cooker without the dispersion | variation in heating electric power can be obtained only by attaching this to an electromagnetic cooker unit.
[0023]
Furthermore, according to the electromagnetic cooker housing of the present invention, while one end of the cradle are supported so rotation by the support, the position of the cradle opposite end is lowered relatively by the crank mechanism, the opposite end The electromagnetic cooker unit can be attached and detached through the unit guide hole that communicates the upper space with the outside of the housing, and the maintainability of the electromagnetic cooker is significantly improved as compared with the conventional one.
[Brief description of the drawings]
FIG. 1 (a) is a cross-sectional structural view of an essential part of an electromagnetic cooker unit according to a first embodiment of the present invention;
(B) is principal part cross-section structural drawing at the time of mounting | wearing this electromagnetic cooker unit to the housing | casing for electromagnetic cookers.
FIG. 2 (a) is a cross-sectional explanatory diagram of a normal use state in the electromagnetic cooker casing of the present invention,
(B) is sectional explanatory drawing which showed the state which takes out the electromagnetic cooker unit currently mounted | worn in this electromagnetic cooker housing | casing to the exterior of a housing | casing.
3 is an explanatory view showing another configuration example of the crank mechanism shown in FIG. 2. FIG.
FIG. 4 is a cross-sectional explanatory view showing a modification of the electromagnetic cooker casing shown in FIG. 2;
FIG. 5 is a cross-sectional structural view of a main part of an electromagnetic cooker unit according to a second embodiment of the present invention.
FIG. 6 is a cross-sectional structure diagram of a conventional electromagnetic cooker.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1,41 Case for electromagnetic cooker 2, 42 Top plate 3 Unit guide hole 4 Receiving base 5, 5A, 5B Crank mechanism 6 Support 10 Electromagnetic cooker unit 11, 44 Unit case 12, 32 Board 13, 43 Heating coil 14 Insulating spacers 15 and 35 Elastic body 45 Receiving bracket used in the conventional product

Claims (3)

A top plate;
A cradle units mounting surface for mounting the induction heating cooker unit is formed,
A support for supporting the cradle at one end to the pivoting freely housing side portions,
It is attached to the opposite end of the cradle, and when stretched, the unit mounting surface of the cradle is made parallel to the top plate, and when bent, the position of the opposite end of the cradle is A bendable / extendable crank mechanism that tilts the cradle relative to the position of one end of the cradle ;
Wherein by the crank mechanism is bent, and a unit guide hole for guiding the electromagnetic cooker unit in the space on the cradle opposite end of the cradle is formed inclined,
Case for electromagnetic cooker. The electromagnetic cooker unit is
A box-shaped unit housing;
A power supply unit housed in the unit housing;
A flat spiral heating coil that receives supply of high-frequency power from the power source on the upper bottom of the unit housing;
An elastic body disposed between the back surface of the heating coil and the upper bottom of the unit housing;
The coil surface of the heating coil is configured to be pressed against the back surface of the top plate through an insulating spacer having a certain thickness by the urging force of the elastic body ,
The crank mechanism is configured such that the distance between the unit mounting surface when stretched and the back surface of the top plate is smaller than the height of the electromagnetic cooker unit when the elastic body is de-energized. The
Electromagnetic cooker Yokatamitai of claim 1, wherein. The electromagnetic cooker unit is
A box-shaped unit housing;
A power supply unit housed in the unit housing;
A flat spiral heating coil that receives supply of high-frequency power from the power source on the upper bottom of the unit housing;
An elastic body disposed between a lower bottom portion of the unit casing and a mounting portion to the electromagnetic cooker casing;
The coil surface of the heating coil is configured to be pressed against the back surface of the top plate through an insulating spacer having a certain thickness by the urging force of the elastic body ,
The crank mechanism is configured such that the distance between the unit mounting surface when stretched and the back surface of the top plate is smaller than the height of the electromagnetic cooker unit when the elastic body is de-energized. The
Electromagnetic cooker Yokatamitai of claim 1, wherein.

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