CN1692251A - Microwave oven - Google Patents

Microwave oven Download PDF

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Publication number
CN1692251A
CN1692251A CNA2003801003702A CN200380100370A CN1692251A CN 1692251 A CN1692251 A CN 1692251A CN A2003801003702 A CNA2003801003702 A CN A2003801003702A CN 200380100370 A CN200380100370 A CN 200380100370A CN 1692251 A CN1692251 A CN 1692251A
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China
Prior art keywords
micro
wave oven
door
girth member
cavity assembly
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Granted
Application number
CNA2003801003702A
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Chinese (zh)
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CN100378404C (en
Inventor
金容渊
李东律
李富润
朴相厚
朴水吉
金元镇
金亨度
朴相东
吴圭镐
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LG Electronics Inc
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LG Electronics Inc
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Publication of CN1692251A publication Critical patent/CN1692251A/en
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Publication of CN100378404C publication Critical patent/CN100378404C/en
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00Heating by electric, magnetic or electromagnetic fields
    • H05B6/64Heating using microwaves
    • H05B6/6426Aspects relating to the exterior of the microwave heating apparatus, e.g. metal casing, power cord

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electric Ovens (AREA)

Abstract

The present invention relates to a microwave oven. The microwave oven of the present invention comprises a cavity assembly which defines a cooking chamber therein and functions as a framework of the microwave oven, an outer casing which includes a top portion and side portions formed at both ends of the top portion to enclose the cavity assembly and interior parts and is provided with convexo-concave reinforcements at the top portion and at least one side portion, a door of which one side is connected to the cavity assembly to be a pivot center and which selectively causes the cooking chamber to be open and close, and a back plate which defines a rear face of the cavity assembly and is provided with a convexo-concave reinforcement formed along at least one edge portion thereof. According to the present invention constructed as such, there is an advantage in that external rigidity of the microwave oven is increased, whereby deformation of the microwave oven due to an impact or operating force can be minimized.

Description

Micro-wave oven
Technical field
The present invention relates to a kind of micro-wave oven, particularly relate to a kind of micro-wave oven, the rigidity of parts that wherein is used for limiting the outward appearance of micro-wave oven is improved.
Background technology
Micro-wave oven is to be used for one of kitchen home electric of cooking food, and disturbance food molecule structure will produce intermolecular frictional heat cooking food on the food by being radiated as the microwave of heating source.Micro-wave oven is raised factory and the similar place that a large amount of food need be heated simultaneously because the convenience of its simple heating, cooking food not only is widely used in family but also is used for the dining room.So the exemplary of micro-wave oven as shown in Figure 1.
As shown in Figure 1, cavity assembly 1 function is the micro-wave oven framework.The culinary art chamber 3 that food is cooked therein is installed in 1 li of cavity assembly, and electronic equipment installation room 5 is installed in a side of cavity assembly 1, and in this state, it and culinary art chamber 3 are separated.Rotating disk 7 is used for rotating food thereon, is installed in 3 li of culinary art chambers.Produce the parts of microwave, for example 9, one high-tension transformers 10 of an electromagnetism keyholed back plate and a capacitor 11 also are installed in 5 li of electronic equipment installation rooms.In addition, being used for cooling off aforementioned parts and producing from culinary art chamber 3 advance the blower fan 12 of/air-flow that goes out also is provided in the electronic equipment installation room 5.
Door 13 is used for opening and closing the side that the door 13 of cooking chamber 3 is fixed and is installed in cavity assembly 1 front.Door 13 and cavity assembly 1 hinge link together, and provide handle 15 in a side of face in front of the door, and a side that is connected with hinge is relative.A control module 17 is used for controlling micro-wave oven, is installed in the opposite side of cavity assembly 1.
Generally speaking, shell 19 is made the outward appearance that defines micro-wave oven in the top and the side of micro-wave oven by metallic plate.Shell 19 is installed on the cavity assembly 1, so that surround cavity assembly 1, the shielded electronic equipment installation room 5 from the outside.
Rear board 1 ' defines the rear surface of cavity assembly 1, and general says, the whole rear surface of micro-wave oven.
As above the micro-wave oven of structure is operated in the following manner.Just, after door 13 is opened, need the food of culinary art to be placed on the rotating disk 7 of 3 li of culinary art chambers, door is closed then.Afterwards, operation control unit 17 is selected and is begun required culinary art pattern.
Yet traditional micro-wave oven of introducing previously has following problem.
Generally by for example rear board 1 ', the parts of door 13 and shell 19 limit the outward appearance of micro-wave oven.In this case, Wai Bu parts may be by various damage.
Shell 19 generally is made up of a metallic plate, limits the top and two relative sides of micro-wave oven.Because the surface of micro-wave oven is the plane on the whole, so they are very weak to the resistivity of external force.Especially, along with the size of micro-wave oven increases, the surface area of shell 19 becomes under the big situation, and the rigidity of shell 19 weakens relatively, so its distortion often takes place.
In addition, a kind of clamping mode is through being commonly used to carry micro-wave oven.In this case, the clamping force of carrying the micro-wave oven generation passes on the packing box of micro-wave oven, the result, and the bight of shell 19 and micro-wave oven just may be out of shape.In order to overcome this problem, a kind of reinforcement material of once usefulness can use, and this causes the cost in the carrying of micro-wave oven to increase and inconvenience.
Also have, in carrying the micro-wave oven process, micro-wave oven may casual whereabouts.At this moment, if micro-wave oven falls, its certain bight touches ground, is applied to that collision load is concentrated on the bight on the micro-wave oven, satisfies very big distortion takes place.
In addition, rear board 1 ' defines the outward appearance of micro-wave oven and the back of cavity assembly 1.Rear board 1 ' has a problem, that is, because stiff problem, being used for framework cavity assembly 1 is fragile relatively except arbitrary borderline region of welding portion or the through hole near zone that is pulled outwardly cable.
At last, the outward appearance that door 13 also is defined as micro-wave oven, the power that is used for opening door 13 may cause the distortion of micro-wave oven.That is to say,, should be pulled outwardly handle 15 in order to open door 13.Yet, being lockable or being fixed under the state on the cavity assembly 1 because door 13 is in by latch (not having to show), door 13 just can not be opened, and enough overcomes the latching force of the latch of application up to the strength that applies.
So the power that is applied on the handle that is used for opening door 13 causes a distortion or distortion, thereby, owing to use door repeatedly, between the front of the back of door 13 and cavity assembly 1 and produce a crack.Electromagnetic wave can come out from culinary art chamber 3 internal leakages by this crack, so the user is caused bad influence, causes the cooking time lengthening.
Summary of the invention
The present invention is that imagination solves aforementioned problem in the prior art.Accordingly, one object of the present invention is exactly the rigidity that increases the parts be used for limiting the micro-wave oven outward appearance.
Another object of the present invention is exactly the rigidity that increases microwave oven shell.
A further object of the invention is exactly the rigidity that increases the micro-wave oven marginal portion.
A further object of the invention is exactly the rigidity that increases rear panel of microwave oven.
A further object of the invention is exactly the rigidity that increases the door of micro-wave oven.
Aspect of the purpose that will reach according to the present invention provides a kind of micro-wave oven, comprising: the cavity assembly, wherein limit the culinary art chamber, and as microwave oven frame; Shell is used for surrounding cavity assembly and internal part, defines the outward appearance of micro-wave oven; Door, the one side links to each other as pivot center with the cavity assembly, can optionally will cook chamber opening and close; Rear board, the rear surface that it is defined as the cavity assembly is provided with a male and female face girth member that forms along its at least one marginal portion.
Preferably, male and female face girth member level is installed in the rear board upper end, the upper surface abut of rear board and shell, and the degree of depth of male and female face girth member is in 1 to 8 millimeter scope.Preferred, whole consistent protrude or recessed of male and female face girth member.
Preferably, additional male and female face girth member be formed on rear board with punching cable aperture position adjacent on, additional male and female face girth member is a rectangle.
According to another aspect of the present invention, provide a kind of micro-wave oven, having comprised: the cavity assembly, it limits the culinary art chamber, and its function is as microwave oven frame; Shell, the lateral parts that it comprises a top section and is installed in the top section both sides is used for surrounding cavity assembly and internal part, and the girth member of male and female face has been installed at top section and at least one lateral parts; Door, the one side links to each other as pivot center with the cavity assembly, and can optionally will cook chamber opening and close.
Preferably, the male and female face girth member is formed on all top and lateral parts, and the degree of depth of each male and female face girth member is in 0.5 to 5.0 millimeter scope.In addition, each male and female face girth member can form and run through girth member and have the identical degree of depth.
Preferred, the degree of depth that is formed on the male and female face girth member of shell side face portion diminishes on the downward direction of lateral parts.
According to another aspect of the present invention, provide a kind of micro-wave oven, having comprised: the cavity assembly, it limits the culinary art chamber, and as microwave oven frame; Shell is used for surrounding cavity assembly and internal part, defines the outward appearance of micro-wave oven, comprises the chamfering that is formed on its bight; Door, the one side links to each other as pivot center with the cavity assembly, can optionally will cook chamber opening and close.
Preferably, the chamfering on the shell is by from the relevant bight of shell excision, connects additional panel in the bight of excision then and forms.
Preferred, the angle between a boundary line of line L that outward flange along shell extends and chamfering is between 30 to 60 degree.Chamfering is formed on the back bight of shell at least.
According to another aspect of the present invention, provide a kind of micro-wave oven, having comprised: the cavity assembly, it limits the culinary art chamber, and as microwave oven frame; Shell, it is used for surrounding the outward appearance of cavity assembly and internal part qualification micro-wave oven; Door, the one side links to each other as pivot center with the cavity assembly, can optionally will cook chamber opening and close.Door also comprises: a doorframe, and it limits the framework of door; A door-plate is installed in the front of doorframe, is used for limiting the outward appearance of door; A handle, it is installed on the door-plate, applies the operating physical force that can open and close door in the above; A girth member, it is installed in side handle and the pivot center relative position is set.
Preferably, projection and recess be by along the parallel installation in the edge of doorframe, provides barrier structure along the edge, rear surface of doorframe, is used for preventing microwave leakage.
In addition, girth member preferably several times in its vertical direction bending longitudinally so that can be installed to simultaneously on projection and the recess.
Preferred, girth member its longitudinally vertical direction be bent once so that can be installed to projection the surface and on the joint face between projection and the recess.
In addition, girth member is made up of an elongated board, and it has the width with the corresponding regulation of width of projection, so that can be installed on the projection.
Also have, girth member is installed on the rear surface of the door-plate that is used for connecting handle, is included in the handle both sides and is fastened to the mounting portion of handle and is used for the coupling part that is connected and installed part, has specific length.
In addition, the cross-section lengths of the coupling part of girth member preferably forms littler than the length of mounting portion.
According to another aspect of the present invention, provide a kind of micro-wave oven, having comprised: the cavity assembly, it limits the culinary art chamber, and its function is as microwave oven frame; Shell, the lateral parts that it comprises a top section and is installed in the top section both sides is used for surrounding cavity assembly and inner parts, and the girth member of male and female face has been installed at top section and at least one lateral parts; Door, the one side links to each other as pivot center with the cavity assembly, can optionally will cook chamber opening and close; A rear board, it is defined as the rear surface of cavity assembly, at the girth member that has formed a male and female face along its at least one marginal portion.
Preferably, chamfering further is formed on the place, bight of shell.
Preferred, door comprises: a doorframe, and it limits the framework of door; A door-plate is installed in the front surface of doorframe, is used for limiting the outward appearance of door; A handle, it is installed on the door-plate, applies the operating physical force that can open and close door in the above; And a girth member, it is installed in provides on the handle side relative with pivot center.
Constitute like this according to the present invention micro-wave oven, its advantage is exactly that the rigidity of the external component of micro-wave oven can obtain relative raising.
Description of drawings
Fig. 1 is the decomposition diagram that shows the traditional microwave furnace structure;
Fig. 2 is according to the preferred embodiments of the invention, the decomposition diagram of microwave oven;
Fig. 3 is the rear view of micro-wave oven among Fig. 2;
Fig. 4 a and 4b are the curve maps that concerns between the deformation extent of explanation male and female face girth member and the degree of depth;
Fig. 5 is the decomposition diagram that shows that the part of structure of the door that uses in the micro-wave oven among Fig. 2 is cutd open;
Fig. 6 is the phantom of door critical piece structure in the key diagram 5;
Fig. 7 is the phantom of an example of door in the key diagram 5, and wherein reinforced panels is modified;
Fig. 8 is the phantom of another example of door in the key diagram 5, and wherein reinforced panels is modified.
Fig. 9 a and 9b are the deformation state figure that the door among conventional door and Fig. 5 is described respectively;
Figure 10 is according to another preferred embodiment of the present invention, the perspective view of microwave oven;
Figure 11 is the figure of the shape of the chamfering in the micro-wave oven among explanation Figure 10;
Figure 12 is the perspective view that is installed in the vibration-absorptive material on the micro-wave oven among Figure 10.
Figure 13 is according to another preferred embodiment of the present invention, the perspective view of microwave oven;
Figure 14 is the decomposition diagram of the door of the micro-wave oven use among Figure 13;
Figure 15 is the cutaway view of the critical piece structure of door among explanation Figure 13;
Figure 16 is the perspective view of an example of door among explanation Figure 14, and wherein reinforced pole is modified; With
Figure 17 a and 17b are the deformation state figure that the door of micro-wave oven use among conventional door and Figure 13 is described respectively.
The specific embodiment
Hereinafter, will explain the preferred embodiment of micro-wave oven in conjunction with attached drawings in detail according to the present invention.
According to Fig. 2, cavity assembly 30 defines microwave oven frame.Culinary art chamber 31 is installed in 30 li of cavity assemblies, and the side that electronic equipment installation room 32 is installed in cavity assembly 30 is adjacent with culinary art chamber 31.Rear board 33 defines the back of cavity assembly 30.
Rear board 33 generally is used to limit the rear surface of micro-wave oven, and the back of cavity assembly 30.Front panel 34 defines the front of cavity assembly 30.34 li of plates and culinary art chamber 31 openings corresponding and that communicate are mounted the inlet as culinary art chamber 31 in front.Rear board 33 and front panel 34 are welded on the cavity assembly 30.
Simultaneously, as shown in Figure 3, air intake hole 33a is being installed on 33 li of rear boards and the electronic equipment installation room 32 corresponding positions.A cable aperture 33h is installed in the upper part of rear board 33, corresponding electronic equipment installation room 32.A power line that is used for supplying the micro-wave oven electric energy passes through from cable aperture 33h.
An elongated male and female face girth member 33 ' is installed in the upper end of rear board 33, that is, and and along the part that the top section 41 of the shell 40 introduced is linked to each other with the back that screws down.If the upper end of rear board 33 only links to each other with shell 40 under without any the situation under the support of additional structure, it can be easy to distortion.Like this, male and female face girth member 33 ' can prevent the possible distortion of central upper portion part of rear board 33.As plate 33 outsides from behind seeing that the male and female face girth member preferably is depressed.The function of such male and female face girth member 33 ' is exactly to strengthen the rigidity of rear board 33, can make by pressure processing.
An additional male and female face girth member 33 " also be installed in cable aperture 33h position adjacent on.Additional male and female face girth member 33 " effect be exactly the rigidity of strengthening rear board 33, the rigidity of rear board may be at dress cable aperture 33h, air intake port 33a and the relative thin that similarly become in the configuration process on the rear board 33 a little less than.Preferably, male and female face girth member 33 " be formed general rectangular shape, but needn't be limited to this.That is to say male and female face girth member 33 " can be formed circle.
According to embodiment of the present invention, preferred, as the outside of plate from behind seeing male and female face girth member 33 ' and 33 " be installed into recessedly, still needn't be limited to this.That is to say male and female face girth member 33 ' and 33 " can be installed into also from behind that plate 33 outer surfaces protrude.
Simultaneously, because rear board 33 is used to limit the back of micro-wave oven, when it also is not easy to be exposed to the user in actual use.So because the outward appearance of rear board is not too important, rear board 33 can obtain enough reinforcements under without any the degree of depth of male and female face girth member or limitation in height condition.Yet, if male and female face girth member 33 ' and 33 " be formed and have the relative dark degree of depth and big height, the problem that stampability reduces so just appears.And, if male and female face girth member 33 ' and 33 " by too much recessed or protrusion, they just may disturb peripheral other parts of micro-wave oven or structure.
Consider above comprehensive that inventor of the present invention tests, test male and female face girth member 33 ' and 33 " the degree of depth.As a result, preferred, the degree of depth of girth member is in 1 to 8 millimeter scope.Here, test result is based on general thickness rear board 33 in 0.5 to 0.7 millimeter scope, that made by steel plate and obtains.
Fig. 4 a has shown male and female face girth member 33 ' or 33 " the degree of depth and because the relation between the distortion that causes of external force.As understanding, when male and female face girth member 33 ' and 33 from figure " be installed on the rear board 33, the crooked rotary inertia of rear board increases.So, because the distortion of external force significantly reduces.If distortion is below the distortion critical value, because the elasticity recovery characteristics, the original-shape of rear board still can fully keep.Therefore, the rigidity of rear board opposing external force has had significant increase than traditional panel.
Food is cooked in culinary art chamber 31.Rotating disk 35 is installed in 31 li of culinary art chambers.Rotating disk 35 allows the food on it to rotate, and microwave is sent on the food uniformly like this.
The various parts that are used for producing microwave are installed in 32 li of electronic equipment installation rooms.For example, electromagnetism keyholed back plate 36, high-tension transformer 37, high-voltage capacitor 38 are installed in 32 li of chambers.In addition, also provide the blower fan 39 that is used for cooling off upper component here.
Shell 40 is mounted and is used for surrounding cavity assembly 30.Shell 40 defines top and two sides of micro-wave oven.Shell 40 is to be bent downwardly, to be made by metal decking by the two ends with metal decking.Here, shell 40 is made up of top section 41 and lateral parts 43, and it defines top and two sides of micro-wave oven respectively.
The top section 41 and the lateral parts 43 of each shell 40 provide male and female face girth member 45.By to carrying out pressure processing with the edge adjacent areas of top section 41 and lateral parts 43, male and female face girth member 45 forms in a direction and is depressed.
In example embodiment, all girth members 45 of the top section 41 of shell 40 and lateral parts 43 all are in a rectangular shape, and from the outside, the formation concave surface.Between the edge of the edge of male and female face girth member 45 and top section 41 and lateral parts 43, provide a space of predesignating.
The rigidity of shell 40 can be significantly improved by top section 41 and the lateral parts 43 installation male and female face girth members 45 at shell 40.Especially, the rigidity of the cross one another marginal position of top section 41 and lateral parts 43 has more significantly improved.
In this embodiment, male and female face girth member 45 is inwardly depressed formation from shell 40 outer surfaces.Yet the present invention is not restricted to this.On the contrary, girth member can outwards protrude formation from the top section 41 of shell 40 and the outer surface of lateral parts 43.
Simultaneously, in order to obtain advantage required for the present invention, each male and female face girth member 45 should have the appropriate degree of depth and height.Yet if the degree of depth of girth member 45 and highly excessive, the machinability of girth member will worsen, and girth member can hinder ancillary equipment.
Consider that based on top factor inventor of the present invention introduces various tests, is used for testing the degree of depth of male and female face girth member 45, thus the conclusion below obtaining.That is to say that preferred, the degree of depth of male and female face girth member 45 is in 0.5 to 5.0 millimeter scope.Here, generally be the experiment test result who obtains under the hypothesis of making by the steel facing of 0.6 ± 0.1 millimeter thickness at shell 40.
Fig. 4 b has shown the degree of depth and because the relation between the distortion that external force causes of male and female face girth member 45.That is to say that as embodiment of the present invention, if male and female face girth member 45 is installed on the shell 40, the crooked inertia of shell will increase.So, because the distortion that external force causes will significantly reduce.If distortion is below the distortion critical value, because the elasticity recovery characteristics, the original-shape of shell still can fully keep.Therefore, the rigidity of shell opposing external force has had significant increase than conventional enclosure.
Door 50 is used for making the culinary art chamber 31 of cavity assembly 30 to open and close.One side hinge of the front panel 34 of door 50 and cavity assembly 30 links together, and connects a side jug 51 of the relative front surface in side of door at its hinge.
The structure of door 50 will be explained in detail with reference to figure 5.Door-plate 52 defines the outward appearance of door 50.Side in door-plate 52 fronts provides handle 51.A face glass 53 by this inside that can see culinary art chamber 31, is fixed on door-plate 52 precedence centres by an ornamental panel 53 '.
Provide doorframe 54 in door-plate 52 back.Doorframe 54 functions are as the framework of door 50, and the heart provides porous to cross zinc steel plate 55 therein, are used for allowing the shielding electromagnetic wave, and can see the inside of culinary art chamber 31.A projection 54a is installed in lead edge portion along doorframe 54, in projection 54a the inside a recess 54b is installed also.Recess 54b compares with projection 54a, inwardly concaves from doorframe 54 fronts.
Along the back edge of doorframe 54 barrier structure 56 has been installed partly, its function is to prevent that the electromagnetic wave of cooking 31 li of chambers from leaking to the outside from door 50.Reference numeral 57 expressions are used for keeping door 50 latches of closing.
One stops and covers 58 back that also are installed in doorframe 54.Stop that covering 58 defines door 50 back edge, its function is a protection barrier structure 56.
In addition, the side at doorframe 54 provides a reinforced panels 59.Reinforced panels 59 is installed in to be provided on the door-plate 52 of doorframe 54 on the identical side of handle 51.As shown in Figure 6, the process of reinforced panels 59 by providing, for example welding process is installed on the doorframe 54.As understanding among the figure, the front surface of reinforced panels 59 and projection 54a, the joint face between the bottom surface of recess 54b and projection 54a and the recess 54b joins.That is to say that reinforced panels 59 is twice of vertical direction bending.
Fig. 7 has represented an adjustment example of the reinforced panels 59 ' of doorframe 54.In this example, reinforced panels 59 ' is mounted the front surface with projection 54a, and the joint face between projection 54a and the recess 54b joins.That is to say that reinforced panels 59 in the bending of vertical direction once.
Fig. 8 has represented the reinforced panels 59 of doorframe 54 " another modification.In this example, reinforced panels 59 " be connected with the front surface of projection 54a.Like this, reinforced panels 59 " be processed to the shape of elongate strip section.
According to the modification example of embodiment of the present invention, the reinforced panels 59 of Fig. 6 can relatively further improve the rigidity of doorframe 50, and the therefore highly effective door 50 that prevents in use is twisted or is out of shape.Yet, a shortcoming is arranged, reinforced panels 59 respectively with Fig. 7 and Fig. 8 in reinforced panels 59 ' and reinforced panels 59 " compare, need additional raw material and processing cost.
Simultaneously, because door 50 distortion that distortion that door produces in actual use or distortion cause are distributed in example explanation among Fig. 9 a and the 9b.That is to say that Fig. 9 a and 9b have shown door among conventional door and the present invention respectively because the situation that the distortion that distortion that takes place or distortion cause distributes.
As shown in these figures, other zones of deformation ratio that are appreciated that zone, the lower right corner want big.Reason wants to open door 50 the time when him exactly, catches the following zone of handle 51 usually, pulls handle 51 then.Like this, with the distortion that is connected the corresponding door of the relative side of door 50 1 sides zone, 50 lower right corner, forwards to being maximum.In addition, in this case, distortion moment in zone, the lower right corner produces, and the distortion in zone, the upper left corner will be by its reaction in rearwards direction generation.Accordingly, the distortion in zone, the lower right corner is maximum.
Yet by mutual comparison diagram 9a and 9b, the maximum distortion that is appreciated that traditional panel is 1.367 millimeters, and the maximum distortion of the panel among the present invention approximately is 0.786 millimeter.Like this, can think that reinforced panels 59 is preventing aspect the distortion great advantage is arranged.
Then, another preferred embodiment of the present invention will make an explanation in conjunction with Figure 10 to 12.In embodiments of the invention, shell 140 defines top surface and two side surfaces of micro-wave oven.Shell 140 is made up of flat rectangular top section 141 and lateral parts 143, and lateral parts 143 almost two vertical ends with top section 141 is vertical.
Chamfering 146 is formed on the rear end of top section 141 and 143 mutual marginal portions of intersecting, side.Chamfering 146 can form with various different modes: promptly, they can be formed directly into shell 140 above, or by will forming chamfering, and then in the additional chamfering sheet formation of the bight of chamfering welding in the back bight of shell 140.In this case, should process the relevant portion of cavity assembly, or and the corresponding bottom panel in bight (not showing) that forms of chamfering 146 have and chamfering 146 inner corresponding shapes.
Figure 11 represents, when chamfering 146 is installed on the shell 140, and the angle theta that the lines L that extends along an outward flange of micro-wave oven and the edge line of the chamfering 146 among the present invention form.Preferably, angle theta is in 30 to 60 degree scopes.Reason is if angle outside 30 to 60 degree scopes, can form too sharp-pointed edge again.
Simultaneously, according to embodiment of the present invention, the upper surface of micro-wave oven is provided with 150, one at door that a fan is used for opening and closing the culinary art chamber and is used for controlling the control module 160 of micro-wave oven operation and one and is used for allowing air to advance/go out the ventilation fence 170 of micro-wave oven.
The microwave stove that Figure 12 represents is useful on the vibration-absorptive material 180 of micro-wave oven among packing the present invention.Vibration-absorptive material 180 is installed on the micro-wave oven, is fixed in the packing box then, so that external force collision or vibrations can not be delivered on the micro-wave oven.
According to the micro-wave oven in embodiment of the present invention, chamfering 146 allows to define the space of regulation between vibration-absorptive material 180 and micro-wave oven bight.The function that put in this space is as a kind of damping space, so significantly reduced vibrations or the collision that is delivered to chamfering 146 from vibration-absorptive material 180.
Certainly, the vibration-absorptive material 180 part shells of corresponding chamfering 146 can be shaped as with chamfering 146 close proximity and touch.Just in this case, because the contact surface between vibration-absorptive material 180 and each chamfering 146, vibrations or collision can not be concentrated.
Figure 13 to 16 has represented the large-volume microwave oven according to another preferred embodiment of the present invention, wherein the bottom of door for microwave oven and cavity assembly hinge link together, its upper end is the vertical pivots rotation on hinged bottom, so that the culinary art chamber can open and close.
As shown in these figures, cavity assembly 230 defines microwave oven frame.The culinary art chamber 231 that is used for cooking food is installed in 230 li of cavity assemblies.Though not expression in the drawings, the electronic equipment installation room that the various electronic equipments that produce microwave are installed also is arranged on a side of cavity assembly 230.
Rotating disk 235 also is located at 231 li of culinary art chambers, is used for the food on it is rotated, and microwave evenly is delivered on the food.The latch slot 237 that the bolt introduced later 257 inserts is formed on the both sides of front surfaces above the cavity assembly 230.
Installation shell 240 is used for surrounding the top and the side of cavity assembly 230.Shell 240 defines the top surface and the two sides of micro-wave oven.
Door 250 is installed in the front of cavity assembly 230.The function of door 250 makes culinary art chamber 231 open and close exactly.In embodiments of the invention, the bottom of door 250 and the preceding bottom hinge of cavity assembly 230 link together.Like this, the upper end of door 250 can make culinary art chamber 231 open and close rotating with cavity assembly 230 hinged bottom head lamp brush guard pivots with side door 250.
Handle 251 is installed in the upper end of the front of door 250, that is, and and on the relative lateral location in the side that door 250 is connected with cavity assembly 230.The user can catch handle 251 and apply power in order to open or close door 250.
The internal structure of door 250 will be carried out detail analysis in conjunction with Figure 14 and 15.Door-plate 252 defines the outward appearance of the front of door 250.Provide a kind of structure in the centre of door-plate 252, can see the inside of culinary art chamber 231 by this.
Doorframe 254 is installed in the rear surface of door-plate 252.Doorframe 254 functions are as the frame body of door 250, form the shape of a rectangle and the zone of a center drilling usually.Doorframe 254 is provided with a support member 255, is used for connecting door-plate 252.Support member 255 frameworks become The cross section of shape.Opposite end in the rear surface of doorframe 254 provides bolt 257, protrudes from the rear surface.Just, when door 250 was closed, bolt 257 inserted in the latch slot 237, prevented that door 250 from being opened carelessly.Certainly, whether the function of bolt 257 is also examined and determine door and 250 is opened or closed.
Also provide one to stop and cover 258 in the rear surface of doorframe 254, be used for preventing microwave leakage.Stop that covering 258 has a rectangle frame, function is the barrier structure that protection closes the marginal portion of doorframe 254.
In addition, reinforced pole 259 is installed in the rear surface of door-plate 252.Reinforced pole 259 is fastened on door-plate 252 and the doorframe 254.Just, as shown in figure 15, reinforced pole 259 is fixed on the door-plate 252, links to each other with handle 251 by screw 259, links to each other with doorframe 254 by screw 259.
And reinforced pole 259 is hooked on the supporting component 255.Endways, reinforced pole 259 constitutes
Figure A20038010037000202
The cross section of shape.Reinforced pole 259 is from extending to another side on one side, so that its two ends can be connected with the opposite end of handle 251.
So reinforced pole 259 is the same with the length of handle 251.Reinforced pole 259 comprises mounting portion 259m, is installed on the door-plate 252 at its two ends, and coupling part 259c is used for making mounting portion 259m to interconnect.At each mounting portion 259m many connecting holes have been installed.Reinforced pole 259 is installed in following mode, and mounting portion 259m is identical with the cross section of coupling part 259c.So the length of its cross section is isometric mutually.
By top mode reinforced pole 259 is installed, the rigid unitary of door 250 can be raised.Especially, when door 250 opening and closing, external force concentrates on the handle 251, has produced large deformation thus on door 250.Accordingly, the function of reinforced pole 259 is to improve the rigidity of door 250, prevents a distortion like this.
Simultaneously, Figure 16 has represented the modification reinforced pole example according to embodiment of the present invention.Reinforced pole 359 among Figure 16 comprises mounting portion 359m, is fixed on the handle at its two ends, and a coupling part 359c is used for making mounting portion 359m to interconnect.
In revising example, mounting portion 359m has different shape of cross sections with coupling part 359c.Just, the cross-section lengths of coupling part 359c is than the weak point of mounting portion 359m.In other words, the surface area of coupling part 359c is relatively little, promptly less than the coupling part 259c's of reinforced pole among Figure 14 259.
250 li uses do not have reinforced pole 259 according to existing technology door, with reinforced pole 259 is bonded to 250 li situation of door according to the present invention, when Figure 17 a and 17b represent respectively to use handle under the both of these case,, door 250 cause distortion to distribute at 250 li at door because opening or closing the distortion or the distortion of generation.
Shown in Figure 17 a and 17b, when the user spurs door 250 handle 251, the left side of door 250 is out of shape forward, and its upper right corner is out of shape relatively backward.In addition, the distortion in the upper right corner of door 250 increases relatively, like this, has just produced maximum distortion in this point.
Yet shown in Figure 17 a, the maximum distortion of conventional door is 14.66 millimeters backward, shown in Figure 17 b, is 8.021 millimeters backward according to of the present invention 250 maximum distortion wherein.Like this, be appreciated that from the front distortion according to door of the present invention reduces relatively.
The present invention can change according to following different mode without limits in aforementioned embodiment.
For example, in embodiment of the present invention, though the male and female face girth member is installed along the upper end of rear board, the assembling girth member can be installed on the whole edge of rear board.
In addition, though the male and female face girth member has the same degree of depth or height as a whole, they also can have the different degree of depth or height.For example, consider contact or position relation between the some electronic equipments that are installed in the micro-wave oven, the male and female face girth member can have the different degree of depth or height according to their position.
And the male and female face girth member that is installed in the shell edge part can be installed in the following manner, and their degree of depth or height can be smaller in downward direction.In this case, almost there is not the male and female face girth member of the degree of depth or height can be installed in shell side rear end partly.
In addition, though all structures of reinforcing rear boards, outer cover and door are used for embodiment shown in Figure 2, they also can be separately or in conjunction with being used for micro-wave oven.
Just, can perhaps have only the male and female face spare of stiffened shell only with the male and female face spare of reinforcing rear board in the micro-wave oven.The door that only has in conjunction with gusset plate wherein can be used for micro-wave oven.Certainly, the male and female face girth member can be applied in respectively on rear board and the shell.
Also have, the chamfering among Figure 10 can be applied in as shown in Figure 2 the micro-wave oven.Certainly, chamfering can be used in conjunction with the micro-wave oven of reinforcing rear board, shell and door.
In addition, being used for the structure of girth member of shell or rear board can be simultaneously or on the selectable micro-wave oven that is applied in as shown in figure 13.
According to above-described the present invention, can obtain following advantage.
Just, be used to limit the shell of the outward appearance of micro-wave oven, rear board and door are reinforced, and the rigidity of micro-wave oven also integral body obtains increasing.So, have an advantage to be exactly, because the distortion that collision or repeated use cause can reduce.
In addition, because the male and female face girth member is installed on the rear board by pressure processing, rear board just increases the resistance of external force resistance.Like this, also having an advantage is exactly that even external force is applied on the rear board, rear board can not be out of shape easily yet.
And the present invention constitutes in the following manner, and male and female face girth member and chamfering all are installed in the surface and the place, bight of shell.Like this, also having an advantage is exactly that even external force or collision are applied on the shell, shell can not be out of shape easily yet.
In addition, the present invention constitutes in the following manner, reinforced panels be installed in the hinged side of playing the pivot center effect of door and the cavity assembly of micro-wave oven the opposite flank in.Like this, even user's opposite house in order to open and close applies strength, the distortion of door also reduces relatively.So, also have an advantage to be exactly, although long-term the use can not produce any gap between the front surface of cavity assembly and the door yet.Accordingly, according to designing requirement, the danger of microwave leakage can reduce, and cooking operation can be kept.
Scope of invention is not limited to aforementioned embodiment of the present invention, but should meet following claim.Clearly, in the spirit and scope that do not break away from invention, the those of ordinary skill in those these professional techniques can be done various changes or adjustment.

Claims (25)

1. micro-wave oven comprises:
The cavity assembly wherein limits the culinary art chamber, and as the micro-wave oven framework;
Shell, it is by surrounding the outward appearance that cavity assembly and internal part limit micro-wave oven;
Door, one side and cavity assembly are connected to pivot center, and it can optionally will be cooked chamber opening and close; With
Rear board, it limits the rear surface of cavity assembly, and is provided with a male and female face girth member that forms along its at least one marginal portion.
2. as the micro-wave oven in the claim 1, wherein male and female face girth member level is formed on the upper end of the rear board of the top surface of described shell.
3. as the micro-wave oven in the claim 2, wherein the degree of depth of male and female face girth member is in 1 to 8 millimeter scope.
4. as the micro-wave oven in the claim 1, wherein the male and female face girth member is done as a whole as one man outstanding or recessed.
5. as the micro-wave oven in claim 3 or 4, one of them additional male and female face girth member is formed in the rear board on the cable aperture position adjacent with break-through.
6. as the micro-wave oven in the claim 5, wherein Fu Jia male and female face girth member is a rectangle.
7. micro-wave oven comprises:
The cavity assembly, it limits the culinary art chamber, and as microwave oven frame;
Shell, it comprises a top section and is formed on top side faces at both ends part, is used for surrounding cavity assembly and internal part, and is provided with the male and female face girth member at top section and at least one lateral parts; With
Door, the one side links to each other as pivot center with the cavity assembly, and can optionally will cook chamber opening and close.
8. as the micro-wave oven in the claim 7, wherein said male and female face girth member is formed on all top sections and the lateral parts.
9. as the micro-wave oven in the claim 8, wherein the degree of depth of each male and female face girth member is in 0.5 to 5.0 millimeter scope.
10. as the micro-wave oven in the claim 7, wherein each male and female face girth member forms and runs through girth member and have the identical degree of depth.
11. as the micro-wave oven in the claim 7, the degree of depth that wherein is formed on the male and female face girth member on the shell side face portion diminishes on the downward direction of lateral parts.
12. a micro-wave oven comprises:
The cavity assembly wherein limits the culinary art chamber, and as microwave oven frame;
Shell, it limits the outward appearance of micro-wave oven by the parts that surround cavity assembly and inside, and comprises the chamfering that is formed on its bight; With
Door, the one side links to each other as pivot center with the cavity assembly, and optionally makes the culinary art chamber opening and close.
13. as the micro-wave oven in the claim 12, wherein the chamfering of shell is the bight of being correlated with by from the shell excision, the bight that then additional panel is connected to excision forms.
14. as the micro-wave oven in the claim 12, wherein at line L that outward flange along shell extends and the angle between the bevel edge boundary line between 30 to 60 degree.
15. as the micro-wave oven in claim 13 or 14, wherein chamfering only forms on the back bight of shell.
16. a micro-wave oven comprises:
The cavity assembly wherein limits the chamber of preparing food, and as microwave oven frame;
Shell, it is by surrounding the outward appearance that cavity assembly and internal part limit micro-wave oven; With
Door, the one side links to each other as pivot center with the cavity assembly, selectively makes the culinary art chamber opening and closes;
Wherein said door comprises:
Doorframe, it limits the framework of door;
Door-plate, the front surface that it is installed in doorframe is used for limiting the outward appearance of door;
Handle, it is installed on the door-plate, applies the operating physical force that is used to open and close door in the above; With
Reinforcement feature, it is installed in the handle side relative with pivot center is set.
17. as the micro-wave oven in the claim 16, wherein projection and recess be along the parallel formation in the edge of doorframe, and be used for preventing the barrier structure of microwave leakage along the edge setting of doorframe rear surface.
18. as the micro-wave oven in the claim 17, wherein said girth member is bent several times perpendicular to its longitudinal direction, so that can be installed in simultaneously on described projection and the recess.
19. as the micro-wave oven in the claim 17, wherein said girth member is bent once perpendicular to its longitudinal direction, so that can be installed on the joint face between projection surface and projection and the recess.
20. as the micro-wave oven in the claim 17, wherein girth member is to be formed by the elongated board with the corresponding preset width of width of described projection, so that it can be installed on the projection.
21. as the micro-wave oven in the claim 17, wherein on the rear surface of the door-plate that is installed in of girth member to connect handle, and comprise mounting portion and coupling part, and handle is fastened to the mounting portion at its two ends, and the coupling part has predetermined length and is used to connect described mounting portion.
22. as the micro-wave oven in the claim 21, wherein the cross-section lengths of the coupling part of girth member forms the length less than the mounting portion.
23. a micro-wave oven comprises:
The cavity assembly wherein limits the culinary art chamber, and as microwave oven frame;
Shell, it comprises a top section and is formed on top section side faces at both ends part, is used for surrounding described cavity assembly and internal part, and is provided with the girth member of male and female face at top section and at least one lateral parts;
Door, the one side links to each other as pivot center with the cavity assembly, and optionally makes described culinary art chamber opening and close; With
Rear board, it limits the rear surface of cavity assembly, and is provided with the male and female face girth member that forms along its at least one marginal portion.
24., wherein also form chamfering in the bight of described shell as the micro-wave oven in the claim 23.
25. as the micro-wave oven in the claim 24, wherein said door comprises:
Doorframe, it limits the framework of door;
Door-plate, the front surface that it is installed in doorframe is used for limiting the outward appearance of door;
Handle, it is installed on the described door-plate, is used to apply the operating physical force that opens and closes door in the above; With
Girth member is installed in handle, the side relative with pivot center is set.
CNB2003801003702A 2002-12-31 2003-12-10 Microwave oven Expired - Fee Related CN100378404C (en)

Applications Claiming Priority (4)

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KR1020020087830A KR20040061559A (en) 2002-12-31 2002-12-31 Microwave Oven with corner reinforced
KR1020020087830 2002-12-31
KR1020030000633 2003-01-06
KR1020030000632 2003-01-06

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CN100378404C CN100378404C (en) 2008-04-02

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN101915485A (en) * 2010-06-24 2010-12-15 合肥美的荣事达电冰箱有限公司 Refrigerator

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EP3340739B1 (en) * 2016-12-20 2019-11-20 Electrolux Appliances Aktiebolag Oven door for a microwave oven
KR102572684B1 (en) * 2019-01-11 2023-08-29 엘지전자 주식회사 Cooking appliance

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CN101915485A (en) * 2010-06-24 2010-12-15 合肥美的荣事达电冰箱有限公司 Refrigerator

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CN100378404C (en) 2008-04-02
CN1940391A (en) 2007-04-04
KR20040061559A (en) 2004-07-07

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