CN100487320C - Closing plate mounting structure of microwave oven - Google Patents

Abstract

The invention discloses a closed plate fixation structure of microwave oven, which comprises the following parts: plate rack, closed plate and fixation projection, wherein the plate rack is set on the side of front panel plate of microwave oven cavity; the closed plate contains several switches and operation to contain and control switch, which fixes the control rod rack through hinged pattern; the fixation projection is set on the end side of closed plate to tangent the back the plate rack against the movement of closed plate forwards, which contains the downward extended projection structure from the end of closed plate and rib structure of bent and extended projection structure toward lateral face. The invention guarantees more stick and stable support state for closed plate, which prevents the switch and pin in the closed plate from ill touching.

Description

The closing plate mounting structure of micro-wave oven

Technical field

The present invention relates to micro-wave oven,, and keep the closing plate mounting structure of the micro-wave oven of fire door closed condition particularly about having possessed stably the fixedly switch of the open and-shut mode of door of microwave oven.

Background technology

Behind the micro-wave oven conducting electric current, send ultrashort wave, this ultrashort wave is shone on the heating object of food etc. and heat by magnetron.Such micro-wave oven is generally divided into the micro-wave oven of the common notion of using above that is placed on kitchen furniture etc. and is arranged on the top of gas furnace etc., has the hood type microwave oven of degassing function.And the fire door of micro-wave oven is divided into normally used side switch structure and the pull-down structure from facing down and opening.

Below, with reference to the micro-wave oven of accompanying drawing 1 explanation prior art employing pull-down fire door.

As shown in the figure, micro-wave oven comprises haply: the cavity assembly 10 of carrying out cooking function in inside; Wrap cavity assembly 10 from the outside, and constitute the shell 20 of outward appearance; Optionally the fire door 30 of the front of switch cavity assembly 10 constitutes.

Cavity assembly 10 comprises: the cavity 11 that drops into the food that will cook; Be arranged on the top of cavity 11, inside is provided with the electric control chamber 13 of the element of various control food cookings; Be arranged on the front panel 15 of cavity front; Be arranged on the bottom panel 17 of bottom surface; The backplate 19 that is arranged on the back side constitutes.

Put into food in the cavity 11, its bottom surface can be moved.When move the bottom surface, mainly be to rotate food, but when the volume of food is big, also can move left and right food.And, formed several steam vent (not shown)s to the outside with the steam row of inside in the side of cavity 11.

Simultaneously, be arranged on the bottom surface of cavity 11 and the bottom panel 17 and the backplate 19 of back and adopt iron plate making, when being subjected to extraneous impact, can effectively protect cavity and electric control chamber 13.

And, the electric control chamber 13 that is arranged on cavity 11 tops is parts of control micro-wave oven running, be provided with magnetron (not shown) that produces high frequency and the waveguide (not shown) that the high frequency that magnetron produces is guided to heating clamber inside on the electric control chamber 13 and produce required high-tension high-tension transformer (not shown) and the high-voltage capacitance (not shown) of described magnetron startup, and be provided with the fan motor assembly (not shown) of the air stream that produces the cooling electric element.

Formed on the plate 15 in front make fire door 30 in the front of cavity 11 optionally the pin hole 15a and the pan 15b of switch.The top of this front panel 15 forwardly is provided with the state that shows cavity in conjunction with being provided with front carriage 16 on the support 16, and the control panel 40 of control micro-wave oven running.And, possessed the button 40a that the user can directly select drive manner in the front of control panel 40.

And the front that fire door 30 is arranged on micro-wave oven is the front of switch cavity 11 optionally.Because it is harmful to shine the microwave of microwave oven cavity inside, therefore when micro-wave oven turned round, fire door must seal whole cavity.Such fire door 30 is relative with front panel 15, and utilizes the hinge (not shown) to be arranged on the below of front panel 15.And, above fire door 30 back sides, formed the latch (not shown) that is inserted in the pin hole 15a that forms on the front panel 15, make front panel 15 and fire door 30 combination closely thus.

Be provided with processing at the rear of control panel 40 by the circuit board (not having expression among the figure) of the signal of button 40a input and the control panel support (not representing among the figure) of circuit board support (not shown) and permanent circuit board mount.And, between the front of the back side of control panel 40 and control panel support, be provided with signal with button 40a and pass to control glass (not shown) on the circuit board.And, on circuit board, be provided with the microprocessor (not shown).

The back side of plate 15 is provided with the in fact fixedly latch plate 50 of the latch of fire door 30 in front.Latch plate 50 utilizes the board mount (not shown) to be arranged on the back side of front panel 15.In conjunction with the accompanying drawings 2, the structure of this latch plate 50 is described.

As shown in the figure, latch plate 50 comprises the framework 51 of prescribed level and the vertical stratification 53 that extends in the outer circumferential vertical direction of framework 51.Outstanding respectively several hinges 51a and the hook 51b of having formed in the inside of framework 51.Bar 55 on the hinge 51a can rotate.And, on the middle part of vertical stratification 53, be provided with open architecture 53a with the place ahead intercommunication.The latch that such open architecture 53a constitutes on the fire door 30 inserts the passage of latch plate 50 inside.

And, be arranged between the hook 51b of framework 51 inside and be provided with switch 57 respectively.This switch 57 is opened under the rotation of stating control lever 55 or is closed.Thus, latch plate 50 is inner insert latches after, be that rotate at the center at the effect lower control arm 55 of latch with the hinge, and by the side of the control lever 55 that rotates, switch 57 is opened or is closed.Certainly, the strength of latch insertion is come in the self closing fire door 30.

The process that aforesaid latch plate 50 is arranged on front panel 15 back sides as shown in Figure 3.

The back side of plate 15 vertically is provided with latch plate 60 at first, in front.The position up and down of this latch plate 60 has possessed the combined hole 61 that is used for mounting screw respectively.Then, latch plate 50 is positioned on the board mount 60.Then, the screw hole 50a of latch plate 50 and the combined hole 61 of board mount are communicated.Afterwards, screw being passed described combined hole 61 and screw hole 50a installs.

Under above-mentioned state, screw S installs and is controlled at certain degree of depth.This is under the state that inserts latch, when the contact point of adjusting between latch and the latch plate internal switch, can adjust.

When closing fire door 30 under the state that 50 preparations of above-mentioned latch plate are installed, latch inserts among the open architecture 53a of latch plate 50.Mobile latch plate 50 under the state that inserts is in order to adjust the contact point between latch and the switch 57.

Adjusted latch plate 50 really is installed in the back side of front panel 15 after the screw S that preparation is installed installs fully.

But there is following problem in aforesaid latch plate 50.

After latch plate 50 preparations are installed, when latch plate 50 relative latches are moved forward, need adjust the operation of contacting points position.Therefore prolonged the set-up time relatively.

And according to the installation site of latch plate 50, the gap between fire door 30 and the front panel 15 changes.The gap of this variation causes the inaccurate of fire door 30 positions, and its result causes rocking of fire door 30.

Summary of the invention

In order to solve the above problems, the objective of the invention is to set up fixed projection, thus the closing plate mounting structure of the micro-wave oven of the initial position of fixed latch plate in the lower end of latch plate.

Another object of the present invention also is to make the closing plate mounting structure of the more firm micro-wave oven of the holding state of latch plate.

In order to achieve the above object, the technical solution used in the present invention provides a kind of closing plate mounting structure of micro-wave oven, described micro-wave oven is provided with the front panel that constitutes microwave oven cavity, board mount on its side and latch plate, described latch plate is fixed on the board mount, wherein: a side of described latch plate end is provided with the back side of described board mount tangent, and the fixed projection that stops described latch plate to move forward thus.

Described fixed projection comprise the outstanding structure of extending from the lower ends downward of latch plate and from outstanding structure to edgewise bend and extend the rib structure that forms and constitute.

Effect of the present invention is that this micro-wave oven latch plate erecting device has just simply been set up fixed projection in the lower end of latch plate, then can guarantee the more firm and stable stationary state of holding state of latch plate by simple setting.And stable latch plate can prevent that the contact point between the latch of its switch inside and fire door is bad.

Description of drawings

Fig. 1 is the exploded perspective view of general microwave oven;

Fig. 2 is the exploded perspective view of the latch plate structure of prior art;

Fig. 3 is the side view that the latch plate of prior art is provided with state;

Fig. 4 is the side view that latch plate of the present invention is provided with state;

Fig. 5 is the back view of latch plate of the present invention;

Fig. 6 is the stereogram of the fixed projection among the present invention.

Among the figure:

15: front panel 30: fire door

100: latch plate 200: board mount

210: warp architecture 300: fixed projection

310: outstanding structure 330: rib structure

The specific embodiment

Below, reach the closing plate mounting structure of the detailed explanation micro-wave oven of the present invention of embodiment in conjunction with the accompanying drawings, use the accompanying drawing that uses in the explanation of prior art to describe for the part identical with existing structure.

Fig. 4 and Fig. 5 are the planes of structure of the latch plate of mounting structure of the present invention.

As shown in the figure, front panel 15 the place aheads that are arranged on microwave oven cavity 11 fronts are provided with fire door 30.And the rear of plate 15 promptly is provided with the latch plate 100 that the present invention designs overleaf in front.Latch plate 100 utilizes screw S to be fixed on the board mount 200 at front panel 15 back sides.

Board mount 200 has possessed the plane corresponding with the back side of front panel 15, and has possessed recurvate warp architecture 210 in the outside on this plane.Warp architecture 210 has formed the rib-like structure with certain width, formed the intercommunicating pore 230 that runs through screw S thereon on the downside, this intercommunicating pore 230 has been communicated with the front and back structure of warp architecture 210, and therefore mounting screw S in the above plays the effect of fixed latch plate 100 in fact then.

Below, utilize described board mount 200 to be arranged on the structure of the latch plate 100 at front panel 15 back sides with reference to Fig. 5 and Fig. 6 explanation.

The front of latch plate 100 is at the framework of prescribed level inner outstanding be provided with several hinges and hook.And control lever can be arranged on the hinge rotationally, and is provided with switch on hook.Around the framework outside, formed the vertical stratification that extends in vertical direction.

The lower end that possesses latch plate 100 back sides of structure has as above possessed fixed projection 300.Described fixed projection 300 comprises: in the following outstanding a part of outstanding structure 310 that faces down of described latch plate 100; End in described outstanding structure 310 constitutes to the rib structure 330 of latch plate 100 back side direction vertical curve.

The more outer extension in the back side of rib structure 330 relative latch plate 100.This mainly is to utilize fixed projection 300 for described latch plate 100 to be supported in the lower end of board mount 200.The size that this rib structure 330 extends is decided by the back side of latch plate 100 and the distance between the board mount 200.Thus, the extension end of rib structure 300 preferably extends to the upper end of the warp architecture 210 of board mount 200, and extending a bit can again.But, cannot if rib structure 330 extends less than warp architecture 210.Latch plate 100 among the present invention utilizes rib structure 330 to be supported in the board mount 200, if if therefore the length of extending can't arrive warp architecture 210, then rib structure 330 can't play a role.

Latch plate 100 is as follows by the firm process that is fixed on front panel 15 rear side of above-mentioned fixed projection 300.

The back side of plate 15 is provided with the warp architecture 210 and the board mount 200 that has possessed intercommunicating pore 230 of fixed latch plate 100 at first, in front.Then, mounting screw S after latch plate 100 is placed in the side of warp architecture 210, finished latch plate 100 has been installed on the back side of front panel 15 this moment.At this moment, the downside of described latch plate 100 is supported in the top of the warp architecture 210 of board mount 200 by fixed projection 300.

Afterwards, push fire door 30 front of front panel 15 to, latch (not expression among the figure) side-prominent in fire door 30 is inserted on the latch plate 100 by pin hole 15a.The latch that is inserted is fixed by the control lever of latch plate inside, without operation, then can't break away from.

Then, when the user opened fire door 30, latch plate 100 was when latch is laggard, towards front panel 15 displacements.But the fixed projection 300 of the latch plate 100 downside settings of the present invention's design is supported on the warp architecture 210 of main support 200, has avoided the displacement of latch plate thus.Thereby latch plate can not move, and can keep the firm state that is provided with.

And after latch plate 100 was stable, its inner switch that is provided with and the contact point between the latch be very stable just.

Claims (2)

1, a kind of closing plate mounting structure of micro-wave oven, described micro-wave oven are provided with the front panel that constitutes microwave oven cavity, board mount on its side and latch plate, and described latch plate is fixed on the board mount, it is characterized in that:

One side of described latch plate (100) end is provided with the back side of described board mount (200) tangent, and the fixed projection (300) that stops described latch plate (100) to move forward thus.

2, the closing plate mounting structure of micro-wave oven according to claim 1, it is characterized in that: described fixed projection (300) comprise the outstanding structure (310) of extending from the lower ends downward of latch plate (100) and from outstanding structure to edgewise bend and extend the rib structure (330) that forms and constitute, the extension end of rib structure (330) is the upper end that extends to the warp architecture of board mount (200).

Images