CN108361764B - Heating cooker - Google Patents

Abstract

The present invention provides a heating cooker, including: a base; the cavity is arranged on the base, a heating cavity for placing food is formed in the cavity, and an opening for the food to enter and exit is formed in one side of the heating cavity; the door body is arranged on the cavity and used for closing or opening the opening; the upper cover is arranged on the cavity in a covering manner; the door body includes: a semi-cylindrical door surface forming a see-through part; a lower movable guide rail formed in an annular shape, which fixes the door surface from below; and an upper movable guide rail formed in an annular shape, which fixes the door surface from the upper side, and the door surface, the lower movable guide rail and the upper movable guide rail are integrally connected. Through the technical scheme of the invention, the rapid sliding abrasion and the overlarge sliding friction resistance of the door body can be avoided, the tight contact of the sliding part relative to the non-sliding part can be ensured, and the moderate loose contact of the sliding part relative to the non-sliding part can be ensured, so that the door body can be ensured to be stable in the sliding process.

Description

Heating cooker

Technical Field

The invention relates to the technical field of household appliances, in particular to a heating cooker.

Background

Generally, as shown in fig. 1, a heating cooker such as a microwave oven has a rectangular parallelepiped shape, and includes a heating chamber for placing food to be heated and a door body capable of closing the cooking chamber from an opening in the front of the heating chamber. The door body is generally of a side-pull or pull-down type door opening structure, that is, the door body can be opened in a side-rotating or downward-rotating manner by taking the opening side edge or the lower edge as an axis.

In addition to such a conventional heating cooker of a rectangular parallelepiped shape, a cylindrical heating cooker has been also found in the prior art. Cylindrical heating cookers are popular with users because of their unique appearance that provides the user with a new experience. The cylindrical heating cooker can be provided with a side-pull type door opening mode like the above mode, and can be also adapted to a cylindrical cavity, so that the door body can slide laterally relative to the cavity to realize the opening and closing of the door.

The inventor finds that, on one hand, in order to ensure that the door body is relatively stable in the sliding process, the sliding part of the door body needs to be in close contact with other non-sliding parts; on the other hand, in order to prevent the door body from sliding and wearing too fast and the sliding frictional resistance from being too large, the sliding member of the door body needs to be in loose contact with other non-sliding members.

Disclosure of Invention

The invention aims to provide a heating cooker which can ensure that a door body is relatively stable in a sliding process and can prevent the door body from sliding and wearing too fast and sliding friction resistance from being too large.

In order to achieve the above object, an aspect of the present invention provides a heating cooker including: a base; the cavity is arranged on the base, a heating cavity for placing food is formed in the cavity, and an opening for the food to enter and exit is formed in one side of the heating cavity; the door body is arranged on the cavity and used for closing or opening the opening; the upper cover is arranged on the cavity in a covering manner; the door body includes: a semi-cylindrical door surface forming a see-through part; a lower movable guide rail formed in an annular shape, which fixes the door surface from below; and an upper movable guide rail formed in an annular shape, which fixes the door surface from the upper side, and the door surface, the lower movable guide rail and the upper movable guide rail are integrally connected.

In this technical scheme, with the shop front, downside movable guide and upside movable guide connect into a whole, the door body sliding part that this overall structure is constructed, when opening or closing the opening, door body sliding part has not only avoided shop front and other non-sliding part direct contact, avoid the problem that door body sliding wear is too fast and sliding friction resistance is too big, and can ensure that the relative non-sliding part contact of sliding part is inseparable moreover, can also ensure that the relative non-sliding part contact of sliding part is moderate and loose, consequently can guarantee that the door body is comparatively steady in the slip in-process.

In addition, the heating cooker in the above technical solution provided by the present invention may further have the following additional technical features:

in the above technical solution, preferably, the door surface includes: an outer see-through layer formed in a semi-cylindrical shape; an inner perspective layer which is matched with the outer perspective layer and is also formed into a semi-cylinder shape; and a metal mesh layer which is configured between the outer perspective layer and the inner perspective layer and is also formed into a semi-cylinder shape, wherein a plurality of through holes are formed on the surface of the metal mesh layer.

In the above technical solution, preferably, the door body further includes: a lower fixed rail formed in a ring shape to be fitted to the lower movable rail, for supporting the lower movable rail from a lower side and/or an outer side, and the lower movable rail being slidable with respect to the lower fixed rail or rolling with a plurality of rollers provided therebetween; and an upper fixed rail formed in a ring shape to be fitted to the upper movable rail, for supporting the upper movable rail from the upper side and/or the outer side, and the upper movable rail being slidable with respect to the upper fixed rail or rolling with a plurality of rollers provided therebetween.

In any of the above technical solutions, preferably, a first rack is formed on the door body, and a door body driving mechanism is installed in the base, and the door body driving mechanism can be engaged with the first rack to drive the door body to rotate.

In the above-described aspect, preferably, the first rack is formed on an inner wall surface of the lower movable rail, and the door drive mechanism may extend to the inner wall surface of the lower movable rail and be engaged with the first rack.

In the above-described aspect, preferably, the first rack is formed on a bottom surface of the lower movable rail, and the door drive mechanism may extend to the bottom surface of the lower movable rail and engage with the first rack.

In the above technical solution, preferably, the first rack is formed on an inner wall surface of the door surface, and the door body driving mechanism may extend to the inner wall surface of the door surface and be engaged with the first rack.

In the above technical solution, preferably, the door driving mechanism includes: the upper end of the door body driving motor is provided with a door body driving gear, and the first rack is meshed with the door body driving gear to enable the door face to rotate under the driving of the door body driving motor.

In the above technical solution, preferably, the lower fixed rail is provided with a lower groove in which the lower movable rail slides.

In the above technical solution, preferably, the lower movable rail is formed with an annular groove, and the door surface is inserted in the groove.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a view showing a structure of a conventional heating cooker;

fig. 2 shows a closed state diagram of the heating cooker according to the embodiment of the present invention;

fig. 3 shows an open state diagram of a heating cooker according to an embodiment of the present invention;

FIG. 4 shows a block diagram of a chamber according to an embodiment of the invention;

FIG. 5 illustrates a block diagram of a door body and rail structure according to an embodiment of the present invention;

FIG. 6 is an exploded view illustrating a door body and a guide rail structure according to an embodiment of the present invention;

FIG. 7 shows a structural view of a lower movable rail according to an embodiment of the present invention;

FIG. 8 shows an enlarged view of portion A of FIG. 7;

fig. 9 is an exploded structural view illustrating a door body and a guide rail structure according to still another embodiment of the present invention;

the correspondence between the reference numerals and the names of the components in fig. 2 to 9 is:

the door comprises a base 10, a cavity 20, a bottom wall 21, a top wall 22, a rear wall 23, a heating cavity 34, a door body 50, a door surface 50a, an outer perspective layer 51, an inner perspective layer 52, a lower movable guide rail 54, a first rack 541, an inner wall surface 543, a groove 546, a lower fixed guide rail 55, a lower groove 552, a roller 56, an upper movable guide rail 57, an upper fixed guide rail 58, a door body driving motor 59, a door body driving gear 60 and an upper cover 70.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.

As shown in fig. 2 to 9, fig. 2 is a schematic view of a heating cooker according to an embodiment of the present invention. Fig. 3 is a perspective view of the door 50 in an open state. As shown in fig. 2 and 3, the heating cooker mainly includes a base 10, in which a lower electric chamber (not shown) for mounting electric devices such as a power supply board, a magnetron, and a frequency converter is formed; a cavity 20, which is arranged on the base 10, and is internally provided with a heating cavity 34 for placing food, wherein one side of the heating cavity 34 is formed as an opening for food to enter and exit; a door 50 disposed on the cavity 20 for closing or opening the opening of the heating cavity 34; an upper cover 70, which covers the cavity 20 and forms an upper electrical chamber (not shown) for installing electrical devices such as a fan and a voice control module.

Fig. 4 is an assembly view of the chamber 20 and its associated structure according to an embodiment of the present invention. As shown in fig. 4, the chamber 20 mainly includes: a bottom wall 21, a top wall 22 and a rear wall 23 enclosing a heating cavity 34. The base 10 may be circular, quasi-circular, or rectangular with rounded corners, and the cavity 20 may be cylindrical, quasi-cylindrical, or cylindrical with a rectangular cross section with rounded corners, and the cavity 20 is illustrated as cylindrical in this embodiment.

In the present embodiment, the bottom wall 21 has a circular plate shape, the rear wall 23 has a substantially semicircular arc shape and is disposed along the outer periphery of the bottom wall 21, and the top wall 22 has a circular plate shape as well, and the outer periphery thereof is connected to the rear wall 23, whereby the bottom wall 21, the top wall 22, and the rear wall 23 form a heating chamber 34 having a front side (a side facing when the user operates the heating cooker) opened and a rear side closed, and the opening can be closed or opened by the door 50.

Fig. 5 is an assembly view of door 50 and its related structure according to the embodiment of the present invention. Fig. 6 is an exploded view of a portion of fig. 5. As shown in fig. 5 and 6, the door 50 mainly includes: an outer see-through layer 51 formed in a substantially semi-cylindrical shape; an inner see-through layer 52 which is fitted to the outer see-through layer 51 and is also formed in a substantially semi-cylindrical shape; a metal mesh layer, which is also formed in a substantially semi-cylindrical shape, disposed between the outer see-through layer 51 and the inner see-through layer 52, has a plurality of through holes formed on the surface thereof to prevent microwaves from being transmitted from the heating cavity 34 through the outer see-through layer 51 and the inner see-through layer 52 under the microwave heating function, and forms the door surface 50a together with both the outer see-through layer 51 and the inner see-through layer 52.

A lower movable rail 54 formed in a substantially annular shape for fixing the door surface 50a formed by the outer see-through layer 51, the inner see-through layer 52, and the metal mesh layer from below; a lower fixed rail 55 formed in a ring shape fitted to the lower movable rail 54 for supporting the lower movable rail 54 from the lower side and/or the outside, the lower fixed rail 55 being provided with a lower groove 552 in which the lower movable rail 54 slides, the lower movable rail 54 being slidably disposed in the lower groove 552; and the lower movable rail 54 can slide relative to the lower fixed rail 55 or roll by a plurality of rollers 56 provided therebetween; an upper movable rail 57 formed in a substantially annular shape for fixing the door surface 50a from above; an upper fixed rail 58 formed in a ring shape fitted to the upper movable rail 57 and supporting the upper movable rail 57 from the upper side and/or the outside, the upper fixed rail 58 being provided with an upper groove (not shown) in which the upper movable rail 57 slides, the upper movable rail 57 being slidably provided in the upper groove; the upper movable rail 57 is slidable with respect to the upper fixed rail 58 or rollable by a plurality of rollers (not shown) provided therebetween.

The door surface 50a, the lower movable rail 54, and the upper movable rail 57 are integrally connected.

Note that, in the drawings, since the metal mesh layer is closely attached to the outer see-through layer 51 and the inner see-through layer 52, the structure thereof is not specifically shown in the drawings.

In the present embodiment, the door sliding portion composed of the door surface 50a, the lower movable rail 54, and the upper movable rail 57 is slidable in the groove formed by the lower fixed rail 55 and the upper fixed rail 58 (door non-sliding portion), and when the opening is opened or closed, the door sliding portion not only prevents the door surface 50a from directly contacting other non-sliding parts, and prevents the problems of excessive sliding wear and sliding friction resistance of the door 50, but also ensures that the sliding part is in close contact with the non-sliding part, and also ensures that the sliding part is in moderate loose contact with the non-sliding part, so that the door can be ensured to be stable during sliding.

In addition, as shown in fig. 6, a door driving mechanism may be further installed in the base 10, and the door driving mechanism includes a door driving motor 59, and a door driving gear 60 is disposed at an upper end of the door driving motor, and the door driving gear 60 may be engaged with a first rack 541 formed on the door 50, so that the door 50 may be automatically rotated by the door driving motor 59.

In one embodiment of the present invention, as shown in fig. 5 to 8, the first rack 541 is formed on the inner wall surface 543 of the lower movable rail 54, and the door driving mechanism can extend to the inner wall surface 543 of the lower movable rail 54 and engage with the first rack 541.

In this embodiment, the door driving motor 59 uses the first rack 541 and the door driving gear 60 which are engaged with each other to enable the door 50 to automatically open or close the opening, so that the convenience of the user in using the heating cooker is increased, and the grade of the product is improved; further, the first rack 541 is provided on the inner wall surface 543 of the lower movable rail 54, and when the mounting position of the door driving mechanism is designed, the door driving mechanism is provided inside the base 10 corresponding to the lower movable rail 54, so that more possibilities are provided for rational layout of electric devices mounted in the base 10, the internal space of the heating cooker occupied by the door driving mechanism is reduced, and miniaturization is achieved.

In another embodiment of the present invention, the first rack gear 541 is formed on a bottom surface (not shown) of the lower movable rail 54, and the door driving mechanism may extend to the bottom surface of the lower movable rail 54 and engage with the first rack gear 541.

In this embodiment, the first rack 541 is disposed on the bottom surface of the lower movable rail 54, and when designing the installation position of the door driving mechanism, the door driving mechanism can be horizontally placed in the base 10, so that the height of the door driving mechanism is controlled within a certain range, the height of the base 10 is reduced to a certain extent, and the height of the heating cooker is reduced, thereby realizing miniaturization; in addition, the heating cooker with a lower height operates more smoothly and with less noise.

As shown in fig. 9, in another embodiment of the present invention, a first rack 541 is formed on an inner wall surface of the door 50a, and the door driving mechanism may extend to the inner wall surface of the door 50a and engage with the first rack 541.

In this embodiment, the first rack 541 is provided on the door surface 50a, so that the first rack 541 does not separate from the door surface 50a when the door 50 receives a large external force, thereby improving the stability of the door 50 during opening and closing.

It can be understood that the door surface 50a and the first rack 541 can be integrally formed, and can also be fixed together by welding, riveting or screwing, and the like, and the connecting method is simple, easy to operate, and can be quickly disassembled when needing to be maintained, and after the maintenance is completed, the quick re-installation is also convenient, and the convenience of use is improved.

In any of the above embodiments, preferably, as shown in fig. 8, the lower movable rail 54 is formed with an annular groove 546, and the door face 50a is inserted in the groove 546.

In this embodiment, the door surface 50a is inserted into the groove 546, so that the door body 50 and the lower movable rail 54 are detachably connected, and the door surface 50a, the lower movable rail 54 and the upper movable rail 57 can be integrally slid and the door surface 50a can be easily attached and detached.

In any of the above embodiments, the first racks 541 with different lengths are provided according to different operation modes of the door driving motor 59 when opening and closing the opening of the door 50, and the door can be controlled to open or close the opening only by setting the first racks 541 into half circular rings by driving the door 50 to slide by forward rotation and reverse rotation of the door driving motor 59; the sliding of the door 50 is controlled by the same rotating direction of the door driving motor 59, and the opening of the door 50 can be opened or closed only by setting the first rack 541 to be the whole circumference.

In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. Throughout this specification, the schematic representations of the terms used above do not necessarily refer to the same implementation or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. A heating cooker, characterized by comprising:

a base (10);

the cavity (20) is arranged on the base (10), a heating cavity (34) for placing food is formed in the cavity, and one side of the heating cavity (34) is formed as an opening for the food to enter and exit;

the door body (50) is arranged on the cavity (20) and is used for closing or opening the opening;

an upper cover (70) which is arranged above the cavity (20);

the door body (50) includes:

a semi-cylindrical door surface (50a) constituting a see-through part;

a lower movable guide rail (54) formed in an annular shape, which fixes the door surface (50a) from below;

an upper movable guide rail (57) formed in an annular shape and fixing the door surface (50a) from the upper side,

the door surface (50a), the lower movable guide rail (54) and the upper movable guide rail (57) are connected into a whole;

a lower fixed rail (55) formed in a ring shape fitted to the lower movable rail (54) for supporting the lower movable rail (54) from the lower side and/or the outside, and the lower movable rail (54) being slidable with respect to the lower fixed rail (55) or rollable by a plurality of rollers (56) provided therebetween;

an upper fixed rail (58) formed in a ring shape fitted to the upper movable rail (57) for supporting the upper movable rail (57) from the upper side and/or the outer side, and the upper movable rail (57) is slidable with respect to the upper fixed rail (58) or rollable by a plurality of rollers provided therebetween.

2. The heating cooker according to claim 1, wherein the door face (50a) includes:

an outer see-through layer (51) formed in a semi-cylindrical shape;

an inner see-through layer (52) formed in a semi-cylindrical shape fitted to the outer see-through layer (51);

a metal mesh layer formed in a semi-cylindrical shape disposed between the outer see-through layer (51) and the inner see-through layer (52), and having a plurality of through holes formed on the surface thereof.

3. The heating cooker according to claim 1 or 2,

a first rack (541) is formed on the door body (50),

a door body driving mechanism is installed in the base (10), and the door body driving mechanism is meshed with the first rack (541) to drive the door body (50) to rotate.

4. The heating cooker according to claim 3, wherein the first rack (541) is formed on an inner wall surface (543) of the lower movable rail (54), and the door driving mechanism is capable of protruding to the inner wall surface (543) of the lower movable rail (54) and meshing with the first rack (541).

5. The heating cooker according to claim 3, wherein the first rack (541) is formed on a bottom surface of the lower movable rail (54), and the door driving mechanism is protruded to the bottom surface of the lower movable rail (54) and engaged with the first rack (541).

6. The heating cooker according to claim 3, wherein the first rack (541) is formed on an inner wall surface of the door surface (50a), and the door driving mechanism is extendable to the inner wall surface of the door surface (50a) and engaged with the first rack (541).

7. The heating cooker according to claim 4, wherein the door driving mechanism includes:

and the upper end of the door body driving motor (59) is provided with a door body driving gear (60), and the first rack (541) is meshed with the door body driving gear (60) to enable the door surface (50a) to rotate under the driving of the door body driving motor (59).

8. The heating cooker according to claim 1, wherein the lower fixed rail (55) is provided with a lower groove (552) in which the lower movable rail (54) slides.

9. The heating cooker according to claim 1, wherein the lower movable rail (54) is formed with an annular groove (546), and the door face (50a) is inserted in the groove (546).

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