CN1769783A

CN1769783A - Front panel of microwave oven

Info

Publication number: CN1769783A
Application number: CN 200410072619
Authority: CN
Inventors: 吴圭镐
Original assignee: LG Electronics Tianjin Appliances Co Ltd
Current assignee: LG Electronics Tianjin Appliances Co Ltd
Priority date: 2004-11-03
Filing date: 2004-11-03
Publication date: 2006-05-10

Abstract

The invention discloses a front panel of microwave oven, which comprises the following parts: bent part on the rack in front of microwave oven, front panel in front of oven cavity and reinforced part behind the front panel to prevent the front panel from deforming, wherein the reinforced part contains plane part toward left and right direction in connection with the front panel, upward bent part on the plane part and downward bent part under the plane part, which is made of steel or iron material steel plate or iron plate. The invention makes the door adhere to the front of oven cavity tightly without slit between front panel and front door, which prevents the microwave from leaking as well as the top of front panel from ill operating.

Description

The front panel of micro-wave oven

Technical field

The present invention relates to a kind of micro-wave oven.The front panel that particularly relates to a kind of relevant micro-wave oven that under the effect of door gravity, also can not be out of shape.

Background technology

Micro-wave oven is to produce ultrashort wave according to current lead-through at magnetron, and comes the device of heat food by heating objects such as ultrashort wave irradiation foods.Such micro-wave oven roughly is divided into the last general micro-wave ovens that uses such as being placed on kitchen furniture; Be installed in the air draft dual-purpose micro-wave oven etc. that uses on the top wall of gas burning roastor etc. and have degassing function.And the door of micro-wave oven can be divided into the side open and close type structure of usual employing; Hinge is in conjunction with the bottom being center rotation and the opening and closing structure of rotary type up and down opened to the bottom from top etc.

Specify the outfit micro-wave oven of the prior art of rotary type opening and closing structure door up and down below in conjunction with Fig. 1.

As shown in Figure 1, micro-wave oven comprises by the furnace chamber assembly of cooking in inside 10, encases furnace chamber assembly 10 outsides and the shell of formation outward appearance, and the door 30 that selectivity opens and closes furnace chamber assembly 10 fronts constitutes.

Furnace chamber assembly 10 is located at furnace chamber 11 tops and is equipped with the electricity Tibetan portion 13 of the various electronic units that are used for cooking food to constitute by the furnace chamber 11 of putting into the food that will cook.

The electricity Tibetan portion 13 that is located at furnace chamber 11 tops is actual places of carrying out the micro-wave oven function.Magnetron (not shown), waveguide (not shown), high-tension transformer (not shown) and high-voltage capacitor (not shown), fan motor assembly (not shown) etc. are installed for 13 li by electricity Tibetan portion.Magnetron (not shown) produces high frequency waves; Waveguide (not shown) to cooking room guiding by high frequency waves that magnetron produced; Needed high-tension electricity when high-tension transformer (not shown) and high-voltage capacitor (not shown) provide driving to magnetron; Steam in electronic units such as fan motor assembly (not shown) cooling magnetron, high-tension transformer, high-voltage capacitor offer for sale side by side.

Shell is by the front panel 21 of the front that is installed in furnace chamber 11, be provided in the top panel 23 on furnace chamber 11 tops, be provided in the side panel (not shown) of furnace chamber 11 left and right sides, be provided in the rear board 27 at the back side of furnace chamber 11, the bottom panel 29 that is provided in furnace chamber 11 bottoms constitutes.Each

panel

21,23,27,29 usefulness iron plate is made, and protection furnace chamber 11 and electric Tibetan portion 13 prevent that furnace chamber 11 and electric Tibetan portion 13 are subjected to outside impact.

Door 30 is installed in the front of the front selectivity switching furnace chamber 11 of micro-wave oven.The microwave that is radiated in the micro-wave oven furnace chamber is harmful, so in the time of running of microwave oven, door 30 will seal whole furnace chamber.Door 30 like this engages and is combined in hinge arrangement (not shown) hinge the bottom of front panel 21 with front panel 21.Upper rear portion at door 30 forms latch hook 30a.The effect that makes door 30 be close to front panel 21 is played in hook lock 21c combination in front of the latch hook 30a on the panel 21.

Front panel 21 is installed in the front of furnace chamber 11 as shown in Figure 2.

Front panel 21 is made of dimetric frame section 21a and the opening portion 21b that is positioned at forwards open furnace chamber 11 spaces, frame section 21a inside.

Frame section 21a by in the left and right sides of furnace chamber 11 separately the vertical support frame that forms of extend longitudinally constitute with the horizontal stand that laterally is connected two vertical support frame ends.But vertical support frame and horizontal stand are the states that forms one.Upside the right and left of the frame section 21a of plate 21 forms the hook lock 21c of selectivity shutter door 30 separately in front.In addition, the right and left at downside has pan 21d.Above such front panel 21 in conjunction with anterior brackets 22.Control panel 40 is installed on the carriage 22 in front, is demonstrated the operating condition of furnace chamber, and the running of control micro-wave oven.The control glass plate 41 that is equipped with touch-screen is installed in inside at control panel 40.

Fig. 3 is the schematic rear view of the front panel of prior art, has provided the back side of front panel 21 and anterior brackets 22.

But the front panel 21 in the structure of Fig. 3 has following shortcoming.

Have the erection weight of the micro-wave oven of the door of rotary type opening and closing structure up and down, the side that compares opens and closes door 30 weights of mode.Door 30 like this inserts the front of being close to furnace chamber 11 in the hook lock 21c by latch hook 30a as mentioned above, promptly is close to front panel 21.Therefore, the door 30 of phase counterweight is the state attached to front panel 21 fronts.According to this formation, when door 30 was closed, the upside of door 30 rearward promoted front panel 21; When door 30 was opened, door 30 forwards spurred front panel 21, front panel 21 both direction bending forwards, backwards thus.If front panel 21 alternating bending like this certain slit occurs between the front of front panel 21 and the door as a result.

As mentioned above, in order to prevent harmful microwave leakage to furnace chamber 11 outsides, door 30 fronts of wanting complete closed furnace chamber 11.But if occur certain slit between door 30 and the front panel 21, microwave will be leaked to the outside by the slit.

And the microwave of leakage also will be delivered to the control panel 40 of front panel 21 tops.The inside of control panel 40 is provided with touch-screen (not shown), if microwave transfer is to touch-screen, because touch-screen is to microwave susceptible, so touch-screen can operate by mistake.The mistake running of touch-screen has hindered the normal operation of furnace chamber 11.

Summary of the invention

Technical problem to be solved by this invention is, thereby a kind of front panel with micro-wave oven that strengthening part reinforcement front panel intensity is installed overleaf is provided.

The technical solution adopted in the present invention is: a kind of front panel of micro-wave oven includes: to form bending part in order combining with the anterior brackets of micro-wave oven at upside, and to constitute the front panel of furnace chamber front; The back side of plate also is provided with the strengthening part that prevents distortion of front faceplate in front.

Described strengthening part includes: direction formation to the left and right and the planar portions that combines with front panel, and at the upside bending part of the upper end of planar portions bending formation, at the downside bending part of the lower end of planar portions bending formation.Described strengthening part and front panel be arranged in parallel.

Described strengthening part adopts the steel plate of steel matter to make.Described strengthening part also can adopt the iron plate of iron material matter to make.

Formation of the present invention, the intensity of front panel improves, so front panel can not be out of shape because of door opens and closes.

As mentioned above, micro-wave oven front panel of the present invention also is provided with strengthening part at the back side, position of being close to door.Therefore, in the process of shutter door, though door forwards spur front panel or rearward promote front panel owing to be provided with strengthening part, can prevent distortion of front faceplate.Because being provided with strengthening part prevents distortion of front faceplate, make door be close to the front of furnace chamber fully, the slit can not appear between front panel front and the door, so the microwave of furnace chamber inside can not leak into the outside.Thus, can prevent the touch-screen mistake running of front panel top.

Description of drawings

Fig. 1 is the existing exploded perspective view of the micro-wave oven formation of rotary type shutter door up and down that has;

Fig. 2 is the schematic diagram of front structure of the micro-wave oven of prior art;

Fig. 3 is the schematic rear view of the front panel of prior art;

Fig. 4 is the schematic diagram of front panel preferred embodiment of the present invention;

Fig. 5 is the structural representation of strengthening part preferred embodiment of the present invention.

Wherein:

11: furnace chamber 100: front panel

200: strengthening part 210: planar portions

210a: combined hole 230: upside bending part

250: the downside bending part

The specific embodiment

Specify the front panel of micro-wave oven of the present invention below in conjunction with accompanying drawing.Used the drawing reference numeral of using in the prior art for position same as the prior art.

Fig. 4 is the schematic diagram of front panel preferred embodiment of the present invention.Provided front panel of the present invention back side oblique view.

As shown in Figure 4, be equipped with anterior brackets 110 on front panel 100 tops of furnace chamber 11 fronts.Strengthening part 200 is installed at the back side of plate 100 in front.

Strengthening part 200 is by the planar portions 210 that is close to front panel 100 back sides, from the upside bending part 230 of the last side direction furnace chamber 11 rear bendings of planar portions 210, constitutes from the downside bending part 250 of the following side direction furnace chamber 11 rear bendings of planar portions 210.

Planar portions 210 is formed by rectangular surface plate, is formed with the combined hole 210a that is connected and fixed screw on it.Therefore, strengthening part 200 passes the back side that combined hole 210a is fastened on front panel 100 by screw.But,, can also fix by the mode of welding except with the screw fixings.Fixedly the process of strengthening part 200 is as follows for mode by welding.At first, strengthening part 200 is close to the back side of front panel 100.At this moment, the position of being close to is corresponding with the upside of door.Then, the strengthening part 200 usefulness hands or the other anchor clamps of fixed-site are controlled, prevent that strengthening part 200 from moving, welding afterwards, strengthening part 200 is fixedly mounted on the back side of front panel 100 thus.

Upside bending part 230 and downside bending part 250 are to a direction bending.Therefore, strengthening part 200 constitutes roughly

The structure of font bending.

Strengthening part 200 has and the corresponding width of door upside that is installed in front panel 100 fronts.A upside is narrow if the width of strengthening part 200 compares, and just can not reach purpose of the present invention, can not fully prevent front panel 100 distortion.Therefore, the width of strengthening part 200 is identical with the width of door upside, and perhaps the width of strengthening part 200 is wideer than the width of door upside is best.

As mentioned above, strengthening part 200 has the reason of the width of broad and is: because the door upper end is close to the front of the front panel 100 that strengthening part 200 is installed.Therefore, when door 30 is closed, the front that door 30 upper end rearward promotes front panel 100, but since in front the back side of plate 100 strengthening part 200 is installed, rearward move so strengthening part 200 prevents front panel 100.In addition, when door 30 was opened, because the front of front panel 100 is close in the upper end of door 30, so the front of front panel 100 is forwards moved by the pulling of door upper end, at this moment the strengthening part 200 at front panel 100 back sides prevented front panel 100 distortion.

Strengthening part 200 preferably adopts punching press steel plate or iron plate formation metal sheets such as stamping machine.Therefore, planar portions 210 and downside bending part 230,250 are integrally formed.In addition, strengthening part 200 also can be one-body molded with the synthetic resin material.Just, because the strength ratio iron plate of synthetic resin material is fragile relatively, so need make the synthetic resin material have full intensity in order to reach purpose of the present invention.

Structure as mentioned above, the intensity of front panel 100 is firmer, so even the door of front panel 100 fronts 30 opens and closes, thereby front panel 100 prevents distortion owing to be provided with strengthening part 200 of the present invention.

In the scope of aforesaid basic fundamental thought of the present invention, one of ordinary skill in the art can be produced the various deformation example.Therefore, the scope of the invention does not limit in an embodiment, but will be that the basis makes an explanation with additional patent claimed range.

Claims

1. the front panel of a micro-wave oven includes: to form bending part in order combining with the anterior brackets (110) of micro-wave oven at upside, and to constitute the front panel (100) of furnace chamber (11) front; It is characterized in that the back side of plate (100) also is provided with the strengthening part (200) that prevents front panel (100) distortion in front.

2. the front panel of micro-wave oven according to claim 1, it is characterized in that, described strengthening part (200) includes: direction formation to the left and right and the planar portions (210) that combines with front panel (100), at the upside bending part (230) of the upper end of planar portions (210) bending formation, at the downside bending part (250) of the lower end of planar portions (210) bending formation.

3. the front panel of micro-wave oven according to claim 1 is characterized in that, described strengthening part (200) be arranged in parallel with front panel (100).

4. the front panel of micro-wave oven according to claim 1 is characterized in that, described strengthening part (200) adopts the steel plate of steel matter to make.

5. the front panel of micro-wave oven according to claim 1 is characterized in that, described strengthening part (200) adopts the iron plate of iron material matter to make.