CN218092548U

CN218092548U - Interlocking device of microwave oven and microwave oven

Info

Publication number: CN218092548U
Application number: CN202221380872.1U
Authority: CN
Inventors: 位帅帅; 吴延岐; 朱新朝
Original assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Priority date: 2022-06-01
Filing date: 2022-06-01
Publication date: 2022-12-20
Anticipated expiration: 2032-06-01

Abstract

The utility model discloses an interlock of microwave oven and microwave oven that has interlock, the interlock includes: the method comprises the following steps: a first door hook; the interlocking bracket is provided with a first microswitch and a second microswitch; the rotation lever, the rotation lever is rotationally installed in the interlocking support, the rotation lever is including the first rotor arm that is equipped with first cooperation portion, the second rotor arm that is equipped with second cooperation portion and the third rotor arm that is equipped with third cooperation portion, first cooperation portion, second cooperation portion and third cooperation portion revolute the rotation axis of rotation lever and arrange along the first direction in proper order, first door colludes and is suitable for along the direction removal of closing the door, with the first cooperation portion counterbalance and drive rotation lever and rotate along the first direction, third cooperation portion triggers the second micro-gap switch behind the messenger second cooperation portion triggers first micro-gap switch. According to the utility model discloses microwave oven's interlock has ensured the orderliness that triggers micro-gap switch to occupation space is little, realizes interlock's compact structure nature.

Description

Interlocking device of microwave oven and microwave oven

Technical Field

The utility model relates to a microwave oven technical field, more specifically relates to an interlock and microwave oven of microwave oven.

Background

The side sliding door microwave oven product is the most common design of closing the door slowly, adopts integral door hook promptly, and door hook contains upper and lower door hook two parts, and door hook is connected on the door body by door hook spring, and the in-process of closing the door, upper and lower door hook and fixed bolster contact and whole along the support motion, and the support contains the slope, and after the whole slope that passes through the support of door hook, the card is in support slope rear under door hook spring tension effect, and the process of closing the door is ended so far, and the process of opening the door is the reverse order of above-mentioned process.

In recent years, a slow door closing/soft door closing design aiming at a side-sliding door microwave oven also appears, the design changes the original integral door hook design into two separable parts, the lower half door hook is fixed on a door body and is mainly used for triggering a slow door closing system, the upper half door hook is similar to the traditional door hook, is connected with the lower half door hook through a track and keeps relative reciprocating motion. The upper half part of the door hook is connected to the door body through a door hook spring and is fixed behind the slope of the bracket after passing through the slope of the bracket; after the latter half door hook triggered the buckle, the buckle straining door hook down, by spring and attenuator combined action, the drive door body self-closing realized non-manpower slow door process of closing.

In the related art, aiming at the design of slowly closing the door/soft closing the door of the side-sliding door microwave oven, a split type door hook is adopted, the process of slowly closing the door is realized by utilizing a buckle, a slide way, a spring, a damper and the like, however, the occupied space of the set of system for slowly closing the door is large, enough intervals are reserved for ensuring and other components, different size-proportion schemes need to be designed for different volume models, the universality is poor, and the cost is higher.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide an interlock of microwave oven, the interlock can realize triggering switch spare in order to occupation space is little, and the commonality is strong, can effectively practice thrift the cost.

Another object of the present invention is to provide a microwave oven having the above-mentioned interlocking device.

According to the utility model discloses interlock, include: a first door hook; the interlocking bracket is provided with a first microswitch and a second microswitch; the rotation lever, the rotation lever rotationally install in interlock support, the rotation lever is including the first rotor arm that is equipped with first cooperation portion, the second rotor arm that is equipped with second cooperation portion and the third rotor arm that is equipped with third cooperation portion, first cooperation portion second cooperation portion with third cooperation portion winds the axis of rotation lever is arranged along the first direction in proper order, first door colludes and is suitable for along the direction removal of closing the door, in order with first cooperation portion offsets and drives the rotation lever is followed the first direction rotates, makes second cooperation portion triggers behind the first micro-gap switch third cooperation portion triggers the second micro-gap switch.

According to the utility model discloses interlock of microwave oven, the axis of rotation that revolutes the rotation lever through first cooperation portion, second cooperation portion and third cooperation portion arranges along the first direction in proper order, and first cooperation portion is colluded the drive back by first door, and second cooperation portion and third cooperation portion can trigger corresponding micro-gap switch in proper order, have ensured the orderliness that triggers micro-gap switch, have avoided triggering the chaotic problem of order, and then realize effectively detecting the switching state of microwave oven. And the length of the rotating arm can be effectively reduced while the triggering sequence is ensured, the occupied space is small, and the structural compactness of the interlocking device is realized. Therefore, the interlocking device can be suitable for the microwave oven with small size, the universality is strong, and the production cost can be effectively reduced.

In addition, the interlocking device according to the above embodiment of the present invention may also have the following additional technical features:

according to the utility model discloses a some embodiments, interlocking support has installation space, installation space's lateral wall is equipped with dodges the recess, first rotation arm is located dodge in the recess, first cooperation portion stretches into in the installation space, first door colludes and is suitable for to stretch into in the installation space.

According to some embodiments of the utility model, the interlocking support includes first baffle, first baffle part shelters from dodge the recess with installation space's intercommunication mouth.

According to some embodiments of the utility model, the interlock support has installation space, the second rotor arm is located in the installation space, be equipped with the second baffle in the installation space, at least some of second baffle is located being close to of second rotor arm one side that first door colluded.

According to some embodiments of the present invention, the second baffle is provided with a second opening, and the second opening is provided with a second door hook.

According to some embodiments of the utility model, the interlock support has installation space, the third rotor arm is located in the installation space, be equipped with the third baffle in the installation space, the third baffle is located being close to of third rotor arm one side that first door colluded.

According to some embodiments of the invention, the first mating portion and the second mating portion are with respect to an angle of rotation of the lever axis is α, the second mating portion and the third mating portion are with respect to an angle of rotation of the lever axis is β, α < β.

According to some embodiments of the invention, the first cooperation portion with the interval of rotating the lever axis is greater than or equal to the second cooperation portion with the interval of rotating the lever axis, and is greater than or equal to the third cooperation portion with the interval of rotating the lever axis.

According to some embodiments of the present invention, the interlocking device of the microwave oven further comprises a monitor switch, wherein the monitor switch is disposed on the interlocking bracket; the driving lever is rotatably arranged on the interlocking bracket, and the first door hook drives the driving lever to rotate along a second direction to trigger the monitoring switch before driving the rotating lever to rotate.

According to some embodiments of the invention, the driving lever comprises a first driving arm and a second driving arm, the first driving arm is provided with a fourth matching portion for triggering the monitoring switch, the second driving arm is located at a side where the first driving arm is close to the first door hook, the first door hook is adapted to abut against the first driving arm to drive the driving lever to rotate, and the first matching portion is located between the first driving arm and the second driving arm in a door closing state.

According to some embodiments of the invention, at least one side surface of the second actuating arm is provided with a thinning region in an axial direction of the actuating lever; and/or the thickness of the end part of the first door hook is gradually reduced along the door closing direction.

According to some embodiments of the present invention, the first driving arm is spaced apart from the first fitting portion by a predetermined gap in an axial direction of the driving lever.

According to some embodiments of the utility model, microwave oven's interlock still includes the elastic component, the elastic component is connected the interlock support with the drive lever, and have the drive lever is followed second direction pivoted first drive state and drive the drive lever is followed first direction pivoted second drive state, at the in-process of closing the door, first door collude be suitable for with the drive lever offsets so that the elastic component by second drive state switches to first drive state.

According to some embodiments of the utility model, the interlocking support is equipped with first spacing portion and the spacing portion of second, under the state of closing the door, first spacing portion with the drive lever offsets spacingly, under the state of opening the door, the spacing portion of second with the drive lever offsets spacingly.

According to some embodiments of the utility model, the interlock of microwave oven still includes the buffering door closing assembly, the buffering door closing assembly is connected the interlocking support with the drive lever is closing the door in-process, the buffering door closing assembly be used for to the drive lever exert with the buffering power of second opposite direction.

According to some embodiments of the utility model, the buffering door closing assembly includes: one end of the buffer piece is rotatably connected with the interlocking bracket; the connecting piece, the actuating lever has the driving surface, the connecting piece rotationally install in first actuating arm and with the drive personally submits and predetermine the angle, the other end of bolster with connecting piece rotatable coupling, at the in-process of opening the door, the actuating lever is followed the second direction rotates predetermine behind the angle, the driving surface with the connecting piece offsets in order to drive the connecting piece rotates.

According to some embodiments of the utility model, in the axial of drive lever, the side of connecting piece is equipped with and is used for dodging the breach of dodging of first cooperation portion.

The microwave oven according to the embodiment of the utility model comprises an oven body and a door body arranged on the oven body; according to the utility model discloses microwave oven's interlock, first door collude install in the door body, interlocking support install in the organism.

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

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a right side view of a partial structure of a microwave oven according to an embodiment of the present invention, in which a door body is in a closed state;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a schematic view of a portion of the structure of FIG. 1, wherein the cover is not shown;

FIG. 4 is an enlarged schematic view of FIG. 3 at circle A;

fig. 5 is a schematic structural view showing a partial structure of a microwave oven according to an embodiment of the present invention, in which a door body is in a door-open state;

FIG. 6 is a right side view of FIG. 5;

FIG. 7 is a left side view of FIG. 5;

FIG. 8 is a partial schematic view of FIG. 6, wherein the cover is not shown;

FIG. 9 is an enlarged schematic view of FIG. 8 at circle B;

fig. 10 is a right side view of a partial structure of a microwave oven according to an embodiment of the present invention, in which a first door hook is just in contact with a driving lever;

FIG. 11 is a schematic view of a portion of the structure of FIG. 10, showing the cover;

fig. 12 is a right side view of a partial structure of a microwave oven according to an embodiment of the present invention, in which a fourth mating part triggers a monitor switch;

fig. 13 is a right side view of the partial structure of the microwave oven according to the embodiment of the present invention, wherein the first door hook continues to move in the door closing direction after the monitoring switch is triggered by the fourth engaging portion;

fig. 14 is a right side view of a partial structure of a microwave oven according to an embodiment of the present invention, in which a first door hook has just triggered a rotation lever;

fig. 15 is a right side view of a partial structure of a microwave oven according to an embodiment of the present invention, in which a first door hook is moved in a door opening direction;

fig. 16 is a right side view of a partial structure of a microwave oven according to an embodiment of the present invention, in which an interlock is abnormally triggered;

fig. 17 is a schematic structural view of a bracket body and a rotating lever according to an embodiment of the present invention;

fig. 18 is a schematic structural view of the bracket body and the rotating lever cooperating with each other according to the embodiment of the present invention;

fig. 19 is a schematic structural view of a driving member, a swash block and a bracket body according to an embodiment of the present invention;

fig. 20 is a schematic structural view of the driving member, the swash block and the bracket body which are matched according to the embodiment of the invention;

fig. 21 is a schematic structural view of the drive lever, the connecting member, the buffer member, and the bracket body according to an embodiment of the present invention;

fig. 22 is a schematic view of the structure of the driving lever, the connecting member, the buffering member and the bracket body according to the embodiment of the present invention;

fig. 23 is a schematic structural view of the door body, the first door hook and the second door hook according to the embodiment of the present invention;

fig. 24 is a schematic structural view of the door body, the first door hook and the second door hook according to the embodiment of the present invention;

fig. 25 is a schematic structural view of a cover according to an embodiment of the present invention;

FIG. 26 is a schematic view of the structure from another perspective of FIG. 25;

fig. 27 is a schematic structural view of a stent body according to an embodiment of the present invention;

FIG. 28 is a right side view of FIG. 27;

FIG. 29 is a sectional view taken along the line C-C of FIG. 28;

FIG. 30 is a left side view of FIG. 27;

fig. 31 is a schematic structural view of a drive link according to an embodiment of the present invention;

FIG. 32 is a right side view of FIG. 31;

FIG. 33 is a sectional view taken along line D-D of FIG. 32;

fig. 34 is a schematic structural view of a connector according to an embodiment of the present invention;

fig. 35 is a schematic structural view from another perspective of a connector according to an embodiment of the present invention;

fig. 36 is a schematic structural view of a turning lever according to an embodiment of the present invention;

fig. 37 is a schematic structural view of another view of the turning lever according to the embodiment of the present invention;

fig. 38 is a schematic structural view of a swash block according to an embodiment of the present invention;

fig. 39 is a schematic structural view of the first door hook and the second door hook according to the embodiment of the present invention;

fig. 40 is a top view of fig. 39.

Reference numerals are as follows:

a microwave oven 1000;

an interlock device 100; a door body 200;

a first door hook 11; a second door hook 12;

an interlock bracket 20; a monitor switch 201; a first microswitch 202; a second microswitch 203; an installation space 204; an avoidance groove 205; a first stopper portion 21; a holder body 22; a third through hole 221; a lid body 23; a first through hole 231; a second through-hole 232; a second stopper portion 24; a first baffle 25; a second baffle 26; a third baffle plate 27;

a drive lever 30; a first drive arm 31; a second drive arm 32; a fourth fitting portion 33; an elastic member 34; a connecting portion 35; a drive face 36; a recess 37; a hook 38; thinned regions 39;

a rotation lever 40; the first rotation arm 41; a first fitting portion 45; a second rotating arm 42; a second fitting portion 44; a third rotating arm 43; a third fitting portion 46;

a cushioning door closing assembly 50; a buffer member 51; a connecting member 52; avoiding the notch 521;

a drive member 53; a ramp block 54.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, "a first feature" or "a second feature" may include one or more of the features, and "a plurality" means two or more, and the first feature may be "on" or "under" the second feature, and may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature therebetween, and the first feature being "on", "above" and "above" the second feature may include the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is higher in level than the second feature.

The door opening and closing system of the traditional microwave oven comprises main components such as a door body, a door hook, a front plate and a support, the integral door hook is adopted, the door hook moves along a support ramp integrally, and finally the door hook is clamped behind the support ramp, so that the door body is closed, the whole process is driven by manpower or door body inertia, and no buffer design exists. Direct contact between the door body and the door frame, lack effectual buffer design during the contact, the dynamics that the noise of closing the door and the staff were closed the door is relevant by force, when the great power of user was closed the door, can cause the noise sharp increase of closing the door, seriously influences user experience. The door opening and closing system of the microwave oven needs to comprehensively consider various problems such as door opening and closing force, wave leakage amount, door closing noise and the like.

The slow-closing door/soft-closing door mechanism is applied more in the field of furniture home decoration, for example, a slow-closing door system is additionally arranged on a door or a drawer, so that the risk that children are clamped by the door or the drawer can be effectively reduced, and the user experience is improved. In the field of household appliances, particularly products such as microwave ovens, steam boxes and ovens, the slow-closing door design is also adopted, the slow-closing door design is mainly applied to pull-down door products, the design area is concentrated in the door hinge area, and the design idea refers to the furniture industry.

However, when facing side-sliding door products, adding a soft-close door design at the door hinge is not easy to implement: on one hand, for small-volume products, the designable space of the hinge position is very small, a proper mechanism is not easy to arrange, and for microwave oven products, the risk of wave leakage is increased after the door body is designed to be perforated; on the other hand, different from the drop-down door product, the plane is perpendicular with the plane that can be used to slowly close the door design in the side-sliding door product door body rotation plane, consequently needs the power transmission and the direction conversion mechanism between the design plane, has increased the design degree of difficulty and design cost undoubtedly, has reduced the feasibility, is difficult for popularization and application.

An interlocking device 100 of a microwave oven 1000 and a microwave oven 1000 having the interlocking device 100 according to an embodiment of the present invention will be described with reference to the accompanying drawings.

Referring to fig. 1 to 40, a microwave oven 1000 according to an embodiment of the present invention may include a body, a door 200, and an interlock apparatus 100 according to the microwave oven 1000 of an embodiment of the present invention. The door body 200 is mounted on the body, for example, rotatably mounted on the body, so as to open and close the containing cavity of the body, and switch between the door opening state and the door closing state of the door body 200. The interlocking device 100 can switch to realize corresponding functions according to the state of the door body 200.

The interlocking device 100 of the microwave oven 1000 according to the embodiment of the present invention may include: a first door hook 11, an interlocking bracket 20 and a turning lever 40.

Specifically, as shown in fig. 3, 23, 24, 39 and 40, the first door hook 11 may be attached to the door body 200 so as to move relative to the machine body in accordance with the door opening and closing operation of the door body 200. The interlocking bracket 20 is mounted on the machine body so that the first door hook 11 can be matched with the interlocking bracket 20 and the components on the interlocking bracket 20 in the process of moving relative to the machine body.

Specifically, the interlocking bracket 20 is provided with two switch members, namely a first microswitch 202 and a second microswitch 203. Wherein the first micro switch 202 and the second micro switch 203 need to be triggered in sequence to ensure that the microwave oven 1000 can be powered on and operated normally.

In the correlation technique, to the slow door/soft door design of closing of side sliding door microwave oven, adopted split type door hook, utilize buckle, slide, spring, attenuator etc. to realize slowly closing the door process, but this set of system occupation space that slowly closes the door is big, reserves sufficient interval for guaranteeing with other subassemblies, to the model of different volumes, needs the scheme of the different size proportions of design, and the commonality is poor, and the cost is higher.

In the embodiment of the present invention, as shown in fig. 3, 17 and 18, the rotating lever 40 is rotatably mounted to the interlocking bracket 20, and the rotating lever 40 may include a first rotating arm 41 provided with a first fitting portion 45, a second rotating arm 42 provided with a second fitting portion 44, and a third rotating arm 43 provided with a third fitting portion 46. Moreover, the first matching portion 45, the second matching portion 44 and the third matching portion 46 are sequentially arranged along the first direction (clockwise direction as shown in fig. 3) around the rotation axis of the rotation lever 40, which is beneficial to orderly triggering the micro-switches on the interlock bracket 20 and avoiding the disorder of the triggering sequence. On the other hand, the micro switches on the interlocking bracket 20 can be reasonably arranged, and the compactness of the body structure of the microwave oven 1000 can be realized.

In the process of closing the door of the microwave oven 1000, as shown in fig. 1 to fig. 3, the first door hook 11 is adapted to move along the door closing direction to abut against the first engaging portion 45 and drive the rotating lever 40 to rotate along the first direction, so that the second engaging portion 44 triggers the first micro switch 202 and then the third engaging portion 46 triggers the second micro switch 203, thereby orderly triggering the first micro switch 202 and the second micro switch 203, for detecting the opening and closing state of the door 200, ensuring the normal operation of the microwave oven 1000, avoiding the disordered triggering sequence, and avoiding the potential safety hazard of the microwave oven 1000 due to the disordered triggering sequence of the micro switches.

It should be noted that the first micro switch 202 and the second micro switch 203 may be provided with an elastic sheet, and the second matching portion 44 and the third matching portion 46 trigger the first micro switch 202 and the second micro switch 203 through the elastic sheet. To ensure the triggering sequence, the micro-switches on the interlocking bracket 20 should be properly arranged, and the included angle between the elastic piece of the first micro-switch 202 and the second matching part 44 about the rotation axis should be smaller than the included angle between the elastic piece of the second micro-switch 203 and the third matching part 46 about the rotation axis.

For example, as shown in fig. 10-4, the door body 200 is rotatably mounted to the body about a vertically extending rotational axis, and during the closing process, the door body 200 rotates to move the first hook 11 backward relative to the interlock bracket 20 substantially along the front-back direction shown in fig. 3. During the movement, the first hook 11 first contacts the first engaging portion 45 and drives the rotating lever 40 to rotate in a first direction (clockwise direction as shown in fig. 3). After the rotating lever 40 starts to rotate, the second matching portion 44 and the third matching portion 46 also rotate by the same angle along the first direction, and through the reasonable arrangement of the first micro switch 202 and the second micro switch 203 on the interlocking bracket 20, when the rotating lever 40 rotates to a first preset angle, the second matching portion 44 can contact with the first micro switch 202 to trigger the first micro switch 202. When the rotating lever 40 continues to rotate to the second preset angle, the third matching portion 46 contacts with the second microswitch 203, and the second microswitch 203 is triggered. Thereby, an orderly activation of the first and second

micro switches

202 and 203 is achieved.

Compared with the prior art, in the application, the first matching part 45, the second matching part 44 and the third matching part 46 are sequentially arranged along the first direction, namely, the projections of the first matching part 45, the second matching part 44 and the third matching part 46 on the cross section perpendicular to the axis of the rotating lever 40 are sequentially staggered, so that the orderly triggering of the first microswitch 202 and the second microswitch 203 can be realized, the arm lengths of the first rotating arm 41, the second rotating arm 42 and the second rotating arm 42 are not required to be increased, the occupation of space is reduced, and the structure of the interlocking device 100 is more compact while the orderly triggering of the microswitch is ensured. In addition, the microwave oven can be installed in the microwave oven 1000 with a small volume, the universality is good, and the processing cost can be effectively reduced.

According to the utility model discloses interlock 100 of microwave oven 1000, through first cooperation portion 45, second cooperation portion 44 and third cooperation portion 46 revolute the axis of rotation that moves lever 40 and arrange along the first direction in proper order, first cooperation portion 45 is colluded 11 drive backs by first door, second cooperation portion 44 and third cooperation portion 46 can trigger corresponding micro-gap switch in proper order, the orderliness that triggers micro-gap switch has been ensured, the chaotic problem of order of triggering has been avoided, and then realize effectively detecting microwave oven 1000's switching state. In addition, the length of the rotating arm can be effectively reduced while the trigger sequence can be ensured, the occupied space is small, and the structure compactness of the interlocking device 100 is realized. Therefore, the interlocking device 100 can be suitable for the microwave oven 1000 with a small size, is high in universality and can effectively reduce production cost.

In addition, in some embodiments, the door 200 of the microwave oven 1000 may further include a second door hook 12, for example, as shown in fig. 1 to 16, the first door hook 11 is a lower door hook, the second door hook 12 is an upper door hook, and the lower door hook is disposed at a lower side of the upper door hook. Of course, a third door hook or more door hooks and the like can be included, and the door hooks are distributed at intervals along the vertical direction. In the embodiment comprising a plurality of door hooks, the first door hook 11 is matched with the rotating lever 40 to indirectly trigger the two switch pieces, so that the opening and closing sequence of the two switch pieces is ensured.

The first door hook 11 can be a fixed door hook, that is, fixed relative to the door body 200, so that the position and structure of the first door hook 11 are stable in the process of driving the rotation lever 40 to rotate, and the influence on the orderly triggering of the micro switch due to the change of the position of the first door hook 11 is avoided; other door hooks such as the second door hook 12 and the third door hook may be fixed door hooks, or movable door hooks, for example, door hooks rotatably or movably mounted on the door body 200.

Because according to the utility model discloses microwave oven 1000's interlock 100 has above-mentioned beneficial effect, consequently according to the utility model discloses microwave oven 1000, through first cooperation portion 45, the axis of rotation that second cooperation portion 44 and third cooperation portion 46 revolute the rotation lever 40 arranges along the first direction in proper order, first cooperation portion 45 is colluded 11 drive backs by first door, second cooperation portion 44 and third cooperation portion 46 can trigger corresponding micro-gap switch in proper order, the orderliness that triggers micro-gap switch has been ensured, the chaotic problem of order has been avoided triggering, and then the effective open-close state that detects microwave oven 1000 is realized. In addition, the length of the rotating arm can be effectively reduced while the triggering sequence is ensured, the occupied space is small, and the structure compactness of the interlocking device 100 is realized. Therefore, the interlocking device 100 can be suitable for the microwave oven 1000 with a small size, is high in universality and can effectively reduce production cost.

According to some embodiments of the present invention, as shown in fig. 36 and 37, the included angle between the first fitting portion 45 and the second fitting portion 44 with respect to the axis of the rotation lever 40 may be α, and the included angle between the second fitting portion 44 and the third fitting portion 46 with respect to the axis of the rotation lever 40 may be β, where α < β, which may make the orderly activation of the micro switch more effective on one hand, and may reduce the space occupation of the rotation lever 40 to the interlock device 100 by reducing the included angle between the first fitting portion 45 and the second fitting portion 44 on the other hand.

Specifically, an angle α exists between the first matching portion 45 and the second matching portion with respect to the rotation axis, and an angle β exists between the second matching portion 44 and the third matching portion 46, so that the orderly triggering effect can be realized by matching with the micro switch on the interlocking support 20, and the potential safety hazard of the microwave oven 1000 caused by disordered triggering sequence can be avoided. After the second matching portion 44 triggers the first microswitch 202, the rotating lever 40 needs to rotate by a second preset angle continuously to trigger the third matching portion 46 to the second microswitch 203, and the distance between the second matching portion 44 and the third matching portion 46 on the plane perpendicular to the rotation axis can be increased by making the angle β larger than the angle α, so that the larger the second preset angle is, the better the effect of orderly triggering the microswitch can be achieved.

Moreover, by the fact that the angle between the second matching part 44 and the third matching part 46 with respect to the axis of the rotating lever 40 is smaller than β, the angle between the first matching part 45 and the second matching part 44 with respect to the axis of the rotating lever 40 can be reasonably reduced under the condition that the angle between the second matching part 44 and the third matching part 46 with respect to the axis of the rotating lever 40 is fixed, space resources occupied by the rotating lever 40 in the interlocking device 100 can be reduced while orderly triggering of the micro switch can be ensured, position interference with other components in the interlocking device 100 can be avoided, and the interlocking device 100 is beneficial to achieving structural compactness.

With continued reference to fig. 36 and 37, according to some embodiments of the present invention, the distance between the first fitting portion 45 and the axis of the rotating lever 40 may be greater than or equal to the distance between the second fitting portion 44 and the axis of the rotating lever 40, and greater than or equal to the distance between the third fitting portion 46 and the axis of the rotating lever 40, on one hand, the occupied space of the rotating lever 40 may be made small, which is beneficial to realizing the compactness of the interlock device 100. On the other hand, it is advantageous to quickly trigger the interlock apparatus 100 so that the microwave oven 1000 is quickly brought into an operating state.

Specifically, when the distance between the first engaging portion 45 and the axis of the rotating lever 40 is constant, the distance between the second engaging portion 44 and the axis of rotation and the distance between the third engaging portion 46 and the axis of rotation can be reduced reasonably, so that the space resource occupied by the rotating lever 40 is less, the structure of the rotating lever 40 is more compact, and the structure of the interlock device 100 can be more compact.

Moreover, under the condition that the distance between the second matching portion 44 and the rotation axis and the distance between the third matching portion 46 and the rotation axis are fixed, the distance between the first matching portion 45 and the axis of the rotation lever 40 can be reasonably increased, and in the door closing process, the first door hook 11 can be more quickly contacted with the first matching portion 45 when moving along the door closing direction so as to drive the rotation lever 40 to rotate, and then the second matching portion 44 and the third matching portion 46 can more quickly trigger the first micro switch 202 and the second micro switch 203 in sequence, so that the microwave oven 1000 can quickly enter the working state.

According to some embodiments of the present invention, as shown in fig. 17-22 and 27-30, the interlock bracket 20 may have a mounting space 204, and the sidewall of the mounting space 204 is provided with an avoiding groove 205, and the first rotating arm 41 may be located in the avoiding groove 205, so as to effectively prevent the elongated objects or fingers, etc. from contacting the first rotating arm 41 to rotate the rotating lever 40 after being inserted into the mounting space 204 along the door closing direction, and avoid mistakenly contacting the first micro switch 202 and the second micro switch 203.

And, the first fitting portion 45 may extend into the installation space 204, the first door hook 11 is adapted to extend into the installation space 204, and the first door hook 11 may move in the door closing direction in the installation space 204 to close the microwave oven 1000. During the movement of the first door hook 11, the first door hook 11 may contact the first fitting portion 45 extending into the installation space 204 to drive the rotation lever 40 to rotate.

It should be noted that, because the first engaging portion 45 can be flexibly disposed on the first rotating arm 41 according to actual requirements, it can be ensured that the first door hook 11 can contact with the first engaging portion 45 to drive the rotating lever 40 to rotate by changing the position of the first engaging portion 45 on the first rotating arm 41, and fingers of other strip-shaped objects are not easily contacted with the first engaging portion 45 in the installation space 204, so that the contact between the objects other than the first door hook 11 and the first engaging portion 45 and the false touch of the micro switch can be effectively avoided, and the safety of the microwave oven 1000 can be ensured.

In some embodiments, the first engaging portion 45 is located at a side of the top end of the first rotating arm 41, so that on one hand, the first engaging portion 45 can be effectively prevented from interfering with other components in the installation space 204, and on the other hand, other elongated objects can be prevented from contacting the first engaging portion 45 to rotate the rotating lever 40, and the safety performance of the microwave oven 1000 is better.

In embodiments where the interlock bracket 20 includes a bracket body 22 and a cover 23, the cover 23 covers the bracket body 22 such that the cover 23 cooperates with the bracket body 22 to define the mounting space 204. As shown in fig. 1, 3, 6, 10, and 12, the first microswitch 202 is provided on the side of the cover 23 facing away from the holder main body 22, and the second microswitch 203 is provided in the mounting space 204. The cover 23 may further have a second through hole 232, and the second matching portion 44 of the rotating lever 40 may pass through the second through hole 232 to extend to a side of the cover 23 facing away from the bracket body 22. During the rotation of the rotating lever 40, the second fitting portion 44 rotates along with the second through hole 232 so as to activate the first microswitch 202 located outside the mounting space 204. And the third fitting portion 46 is located in the mounting space 204, and can activate the second microswitch 203 located in the mounting space 204. The first microswitch 202 and the second microswitch 203 are positioned on different sides of the cover 23 so that they do not interfere with each other. For example, the projections of the first and

second microswitches

202 and 203 along the axial direction of the rotating lever 40 may at least partially coincide, so that the arrangement of the two microswitches is more compact, and it is also faster to sequentially trigger the two microswitches by rotating the lever 40.

According to some embodiments of the present invention, as shown in fig. 17-22 and 27-30, the interlocking bracket 20 may include a first blocking plate 25, the first blocking plate 25 may partially block the communication port between the avoidance groove 205 and the installation space 204, so as to prevent a finger or other object from contacting the first rotating arm 41 and rotating the rotating lever 40, and the first blocking plate 25 may also limit the first rotating arm 41.

Specifically, the first rotating arm 41 may be displaced in the direction of the rotating axis in the avoiding groove 205, on one hand, the stable state of the rotating lever cannot be satisfied, and on the other hand, if part or all of the first rotating arm 41 moves out of the avoiding groove 205, fingers or other long-strip-shaped objects can still drive the rotating lever 40 through the first rotating arm 41 without a blocking object, and there is still a risk that the rotating lever 40 is rotated by a false touch. By providing the first baffle 25, the first baffle 25 partially blocks the communication opening between the avoidance groove 205 and the mounting space 204, so that the first rotating arm 41 is stably located in the avoidance groove 205 and cannot move to the mounting space 204, and the first rotating arm 41 is prevented from being touched by a finger or the like by mistake. At the same time, the first baffle 25 may also serve to define and guide the first rotation arm 41. When the first door hook 11 and the first matching portion 45 are abutted to drive the rotating lever 40 to rotate, the first baffle 25 and the interlocking bracket 20 form a matching groove towards the side surface of the first rotating arm 41 in a shape matching manner, the first rotating arm 41 can stably rotate in the matching groove, the second matching portion 44 and the third matching portion 46 are prevented from being misplaced with the correspondingly arranged micro switch and cannot be accurately triggered, and the micro switch cannot be accurately triggered to influence the working state of the microwave oven 1000.

It should be noted that the first blocking plate 25 partially blocks the communication opening between the avoidance groove 205 and the installation space 204, but does not completely block it. If the first shutter 25 completely blocks the communication port, the first rotation arm 41 cannot enter the avoidance space through the communication port. Through the part shelters from, avoids taking place the mistake and touches to when playing limiting displacement, be convenient for install first rotation arm 41, can effectively practice thrift man-hour, improve the efficiency of assembly.

According to some embodiments of the present invention, as shown in fig. 3, fig. 8, fig. 11, fig. 13, fig. 27-fig. 30, the interlock support 20 may have an installation space 204, the second rotating arm 42 is located in the installation space 204, and a second baffle 26 is provided in the installation space 204, at least a portion of the second baffle 26 is located on one side of the second rotating arm 42 close to the first door hook 11, the second rotating arm 42 can be prevented from being touched by fingers and the like by setting the second baffle 26, the rotation of the rotating lever 40 due to the mis-touch of the second rotating arm 42 is prevented, and the rotation of the rotating lever 40 due to the mis-touch of the micro switch and the use safety of the microwave oven 1000 are prevented.

Specifically, as shown in fig. 27 to 30, since at least a portion of the second shutter 26 is located on a side of the second rotating arm 42 close to the first door hook 11, and thus the second shutter 26 is at least partially offset from the second rotating arm 42 in the door closing direction, the second shutter 26 is located on a side far from the first door hook 11. When a finger or a long object is inserted into the installation space 204 in the door closing direction, the finger or the long object can contact the second shutter 26 and cannot easily contact the second rotating arm 42, so that the second rotating arm 42 is prevented from being touched by mistake and the rotating lever 40 is prevented from rotating.

In the embodiment where the installation space 204 is defined by the bracket body 22 and the cover 23, at least one of the bracket body 22 and the cover 23 is provided with the second baffle 26, that is, the second baffle 26 may be provided on the bracket body 22, the cover 23, or both the bracket body 22 and the cover 23 are provided with the second baffle 26, so as to prevent fingers or other objects from accidentally touching the second rotating arm 42. In some embodiments, as shown in fig. 25-30, the second baffle 26 is disposed on both the bracket body 22 and the cover 23, and the two second baffles 26 can be spliced together, so that the second baffle 26 extends a longer distance in a direction parallel to the rotation axis, thereby achieving a better effect of preventing fingers or other objects from touching the second rotating arm 42 by mistake.

It should be noted that the projection of at least a portion of the second baffle 26 along the direction of the rotation axis may be an arc as shown in fig. 28, one end of the arc extends toward the first door hook 11 along the door closing direction, and the other end of the arc extends in the upward direction as shown in fig. 28 perpendicular to the door closing direction. Other shapes are also possible, and the embodiment of the present invention is not particularly limited.

In the embodiment of the interlock device 100 including the second stop 26, as shown in fig. 17-22, 27 and 28, a portion of the second stop 26 may extend in the door closing direction and be located between the rotating shaft of the rotating lever 40 and the first door hook 11, on one hand, the first door hook 11 may be limited and guided, a portion of the second stop 26 may serve as a track for the first door hook 11 to move, and the first door hook 11 may move on the portion of the second stop 26 in the door closing direction to accurately abut against the first fitting portion 45 to drive the rotating lever 40 to rotate. On the other hand, the part is located between the rotating shaft and the first door hook 11, which is beneficial to preventing the micro switch from being triggered by mistake when a foreign object such as a finger touches the rotating shaft of the rotating lever 40.

According to some embodiments of the present invention, as shown in fig. 26, the interlocking bracket 20 may have an installation space 204, the third rotating arm 43 is located in the installation space 204, and the third baffle 27 is disposed in the installation space 204, and the third baffle is located on the side of the third rotating arm 43 close to the first door hook 11, so as to avoid the contact of the third rotating arm 43 by fingers or other objects, and avoid the mistaken touch of the third rotating arm 43 to drive the rotating lever 40 to rotate and further affect the safety of the microwave oven 1000.

Specifically, the third baffle 27 overlaps at least a part of the projection of the door hook in the door closing direction. Furthermore, the third baffle plate is closer to the first door hook 11 than the third rotating arm 43 along the door closing direction, so that the third baffle plate 27 can stop foreign matters such as fingers,

in the embodiment where the interlocking bracket 20 is defined by the bracket body 22 and the cover 23, as shown in fig. 26, at least one of the bracket body 22 and the cover 23 is provided with a third baffle, that is, the third baffle may be provided on the bracket body 22, the cover 23, or both the bracket body 22 and the cover 23, so as to prevent a finger or other objects from accidentally touching the third rotating arm 43.

According to some embodiments of the present invention, as shown in fig. 1-15, the interlock device 100 further includes a monitor switch 201 and an actuation lever 30. The monitoring switch 201 is arranged on the interlocking bracket 20, the driving lever 30 is rotatably arranged on the interlocking bracket 20, and the first door hook 11 drives the driving lever 30 to rotate along the second direction before driving the rotating lever 40 to rotate so as to trigger the monitoring switch 201, so that the monitoring switch 201, the first microswitch 202 and the second microswitch 203 can be triggered in order.

During the door closing process, the first door hook 11 first contacts the driving lever 30 on the interlocking bracket 20 and drives the driving lever 30 to rotate in the second direction (counterclockwise direction as shown in fig. 11), and when the driving lever 30 rotates to a preset angle, the monitoring switch 201 is triggered by the driving lever 30. Then, the first door hook 11 contacts with the rotating lever 40 and drives the rotating lever 40 to rotate along a second direction (clockwise direction shown in fig. 11), when the rotating lever rotates to a first preset angle, the first microswitch 202 is triggered, and when the rotating lever continues to rotate to a second preset angle, the second microswitch 203 is triggered. Thus, sequential and orderly triggering of the monitor switch 201, the first microswitch 202 and the second microswitch 203 is realized.

According to some embodiments of the present invention, as shown in fig. 31 and 32, the driving lever 30 may include a first driving arm 31, and the first driving arm 31 may be provided with a fourth fitting portion 33, and the fourth fitting portion 33 is used to drive the monitor switch 201.

It should be noted that the position of the fourth engaging portion 33 on the first driving arm 31 can be flexibly set according to practical situations such as spatial arrangement. For example, the fourth engagement portion 33 may be provided at any position such as a middle portion or an end portion of the first drive arm 31 in the longitudinal direction of the first drive arm 31.

In some embodiments, the fourth engaging portion 33 may be a protrusion disposed on one side of the first driving arm 31 along the axial direction, so that the fourth engaging portion 33 is not interfered by the first driving arm 31 during the engaging process with the monitor switch 201, and the risk of the first driving arm 31 touching the monitor switch 201 by mistake is avoided.

In the embodiment where the installation space 204 is defined by the holder body 22 and the cover 23, as shown in fig. 1, 6, 10, 12, 25, and 26, the monitor switch 201 is disposed on a side of the cover 23 facing away from the holder body 22, the cover 23 is provided with a first through hole 231, the driving lever 30 is provided with a fourth engaging portion 33, and the fourth engaging portion 33 can be passed through by the first through hole 231 to protrude to a side of the cover 23 facing away from the holder body 22. During the rotation of the driving lever 30, the fourth fitting portion 33 rotates in the first through hole 231, so that the monitor switch 201 is triggered. The monitoring switch 201 may be disposed outside the installation space 204 to avoid position interference with components in the installation space 204, such as the buffering door-closing assembly 50, and the position arrangement is more reasonable.

As shown in fig. 3, 8, 11, 13, 31-33, the driving lever 30 may further include a second driving arm 32, and the second driving arm 32 is located on a side of the first driving arm 31 close to the first door hook 11, in other words, the first driving arm 31 is located on a leading side of the second driving arm 32 in the second direction.

The first door hook 11 is adapted to abut against the first driving arm 31 to drive the driving lever 30 to rotate. As shown in fig. 10 to 14, during the door closing process, the first door hook 11 may abut against the first driving arm 31 to drive the first driving arm 31 to rotate around the rotation axis of the driving lever 30 in the second direction, so as to drive the fourth engaging portion 33 to rotate, so that the fourth engaging portion 33 can rotate to a position for triggering the monitoring switch 201, and the monitoring switch 201 is turned on.

As shown in fig. 1 to 3, in the closed state, the first engaging portion 45 is located between the first driving arm 31 and the second driving arm 32, so that the first engaging portion 45 is not touched by a finger or other objects. Specifically, after a finger or other object is inserted into the installation space 204, the finger or other object initially touches the first driving arm 31 to rotate the driving lever 30 in the second direction, but as the driving lever 30 rotates, the second driving arm 32 interferes with the finger or other object in position to prevent the finger from continuing to be inserted, so that the first matching portion 45 of the rotating lever 40 is not touched, the rotating lever 40 is not touched to rotate, and the first micro switch 202 and the second micro switch 203 are not triggered; after the first door hook 11 is inserted into the installation space 204, since the first door hook 11 is provided with a concave portion avoiding the second driving arm 32, the second driving arm 32 does not obstruct the first door hook 11 from being inserted continuously, and the first door hook 11 can touch the first matching portion 45, thereby driving the rotation lever 40 to rotate.

In some embodiments of the present invention, as shown in fig. 16, 31 and 33, at least one side surface of the second driving arm 32 may be provided with a thinning region 39 in the axial direction of the driving lever 30, so that when the driving lever 30 is installed on the interlocking bracket 20, the second driving arm 32 is provided with the thinning region 39 to form a certain gap with the interlocking bracket 20. When the driving lever 30 is touched by mistake and rotates to the position for triggering the monitor switch 201 in the second direction, the first door hook 11 can be forced to pass through the gap by closing the door and move to between the first driving arm 31 and the second driving arm 32, and then the first door hook 11 can drive the driving lever 30 to rotate and reset in the first direction by the door opening action.

For example, as shown in fig. 1, the interlock bracket 20 includes a bracket body 22 and a cover 23, the driving lever 30 is installed between the bracket body 22 and the cover 23, and the thinned region 39 may be a notch groove provided on the side of the second driving arm 32 facing the bracket body 22, so that the second driving arm 32 and the bracket body 22 form the gap.

In addition, in some embodiments of the present invention, as shown in fig. 39 and 40, the thickness of the first door hook 11 may decrease gradually along the door closing direction, so that the thickness of the first door hook 11 is smaller at the rear end and larger at the front end as shown in fig. 39. Under the state that the driving lever 30 triggers the monitoring switch 201 by mistake, the structure that the first door hook 11 is thick at the front and thin at the back makes the first door hook 11 move to the position between the first driving arm 31 and the second driving arm 32 from the thinning area 39 more easily, and the problem of abnormal triggering is solved more easily.

In some embodiments of the present invention, as shown in fig. 30 and 33, in the axial direction of the driving lever 30, the first driving arm 31 and the first matching portion 45 may be spaced apart by a predetermined gap, so as to ensure that when the first driving arm 31 rotates to the position of the first matching portion 45 along the second direction, the first driving arm 31 is not in contact with the first matching portion 45, and further the rotating lever 40 is not driven to rotate, thereby avoiding the abnormal situation that the door 200 is not completely closed and the monitoring switch 201 and the micro switch are all triggered.

According to some embodiments of the present invention, as shown in fig. 21 and 22, the interlock device 100 further includes an elastic member 34, and the elastic member 34 connects the interlock bracket 20 and the first driving lever 30. For example, the elastic member 34 may be a coil spring, and the coil spring may be one or more. For example, in the example shown in fig. 1 to 16, the elastic member 34 is a tension spring, and is two, as shown in fig. 31 to 33, the driving lever 30 is provided with a connecting portion 35, and the connecting portion 35 is a protrusion provided on a side surface of the driving lever 30 facing away from the fourth fitting portion 33. One end of each tension spring is connected with the interlocking bracket 20, the other end is connected with the connecting part 35, and one ends of the two tension springs are spaced apart by a certain distance.

Furthermore, the elastic member 34 has a first driving state. In the first driving state, the elastic member 34 applies a driving force to the driving lever 30 to rotate in the second direction, so that the second driving arm 32 drives the first door hook 11 to move in the door closing direction.

Specifically, as shown in fig. 10-14, during the door closing process, the first door hook 11 moves in the door closing direction, moves between the first driving arm 31 and the second driving arm 32 and abuts against the first driving arm 31 to drive the driving lever 30 to start rotating in the second direction; when the driving lever 30 starts to rotate along the second direction or rotates by a small angle, the elastic element 34 is in the first driving state to automatically drive the driving lever 30 to rotate along the second direction, so that the second driving arm 32 drives the first door hook 11 to continuously move along the door closing direction, thereby realizing the automatic door closing function. At this time, even if the user cancels the door closing acting force on the door body 200, the door body 200 can be ensured to be closed in place, and the first door hook 11 can move along the door closing direction until the three opening and closing members are all triggered. On one hand, the operation of the user is labor-saving and convenient, and on the other hand, the problem that the door cannot be closed in place can be avoided.

In some embodiments, as shown in fig. 15, the resilient member 34 has a second actuated state. In the second driving state, the elastic member 34 applies a driving force to the driving lever 30 to rotate in the first direction. During the door closing process, the first door hook 11 can abut against the first driving arm 31, so that the elastic member 34 is switched from the second driving state to the first driving state.

Specifically, in the state of opening the door, under the action of the elastic member 34, the driving lever 30 can be kept at a desired position, on one hand, the driving lever 30 is prevented from rotating along the first direction without being acted by the first door hook 11 to trigger the monitoring switch 201 by mistake, on the other hand, the first door hook 11 can be ensured to move smoothly between the first driving arm 31 and the second driving arm 32 in the process of closing the door, and the driving lever 30 is prevented from rotating to influence the cooperation between the first door hook 11 and the driving lever 30. The first door hook 11 abuts against the first driving arm 31 to drive the driving lever 30 to rotate along the second direction, so that the elastic piece 34 timely switches the driving state along with the rotation of the driving lever 30, and the elastic piece 34 can timely play a role in driving the door to be closed.

In the closed state, the elastic element 34 is in the first driving state, so that the driving lever 30 can abut against the first door hook 11 through the second driving arm 32, and the door 200 is ensured to be kept in the closed state. When it is desired to open the door, the user controls the first door hook 11 to move in the door opening direction and to abut against the second driving arm 32, so that the driving lever 30 rotates in the first direction. When the driving lever 30 rotates to a certain angle, the elastic member 34 is switched from the first driving state to the second driving state, so that the elastic member 34 can drive the driving lever 30 to rotate along the first direction to timely remove the resistance to the first door hook 11, and the door 200 can be easily opened.

In embodiments where the elastic member 34 is a spring, the spring is maintained in tension regardless of the first or second actuation state.

According to some embodiments of the present invention, as shown in fig. 17-21 and 28, the interlock bracket 20 may be provided with a first stopper portion 21. In the door-closed state, the first limiting portion 21 can abut against the driving lever 30 to prevent the driving lever 30 from rotating in the second direction. In other words, the first limiting portion 21 can limit the limit position of the driving lever 30 rotating along the second direction, so as to avoid the monitoring switch 201 or the first door hook 11 from being damaged due to an excessively large rotation angle of the driving lever 30.

For example, in the embodiment including the elastic element 34, the elastic element 34 drives the driving lever 30 to rotate along the second direction, so as to drive the first door hook 11 to move along the door closing direction, thereby implementing the automatic door closing action; when the driving lever 30 is rotated to abut against the first limiting portion 21, the limiting effect of the first limiting portion 21 makes the driving lever 30 balanced in stress, and the driving lever 30 does not continue to rotate under the driving of the elastic member 34, so that the driving lever 30 can be kept at a position where the driving lever is stably matched with the first door hook 11 to keep the door body 200 in a door closing state.

According to some embodiments of the present invention, as shown in fig. 17-22, the interlock support 20 may be provided with a second stopper portion 24. In the door-open state, the second stopper portion 24 can abut against the driving lever 30 to prevent the driving lever 30 from rotating in the first direction. In other words, the second limiting portion 24 can limit the limit position of the driving lever 30 rotating along the first direction, so as to avoid position interference caused by an excessively large rotating angle of the driving lever 30 along the first direction, and avoid the situation that the first door hook 11 cannot normally contact and cooperate with the driving lever 30 when the door is closed, thereby avoiding influencing the user experience.

According to some embodiments of the present invention, as shown in fig. 1-16, 21 and 22, the interlock device 100 may further include a cushioned door closing assembly 50. The cushioned door closing assembly 50 connects the interlock bracket 20 and the actuation lever 30, for example, to the first actuation arm 31 of the actuation lever 30.

In the door closing process, the buffering door closing assembly 50 is configured to apply a buffering force opposite to the second direction to the driving lever 30, so as to achieve a door closing buffering effect, avoid a severe collision between the door body 200 and the machine body in the door closing process, and also facilitate reduction of door closing noise.

The utility model discloses do not do special restriction to the concrete structure of buffering door closing assembly 50, only need satisfy can play the buffering effect of closing the door. For example, the cushioned door closing assembly 50 may include a damper, a spring, a compression spring, or the like.

For example, in some embodiments, with continued reference to fig. 21 and 22, the cushioned door closing assembly 50 includes a cushion 51 and a connector 52. Wherein, the one end and the interlock support 20 rotatable coupling of bolster 51, connecting piece 52 respectively with the other end and the first actuating arm 31 rotatable coupling of bolster 51 to make drive lever 30 rotate the in-process, bolster 51 can play the cushioning effect, and rotatable coupling structure makes can adapt to the rotation of drive lever 30, avoids taking place the card and dies.

As shown in fig. 21, 22, 31 and 32, the first driving arm 31 has a driving surface 36, the link member 52 is rotatably mounted to the first driving arm 31, and as shown in fig. 8 and 9, the link member 52 and the driving surface 36 form a predetermined angle in the door open state, and the other end of the cushion member 51 is rotatably connected to the link member 52. During the door closing process, after the driving lever 30 rotates along the second direction by a predetermined angle, the driving surface 36 can abut against the connecting member 52 to drive the connecting member 52 to rotate.

Since the connecting member 52 and the driving surface 36 are arranged at a predetermined angle in the door opening state, when the first door hook 11 just contacts the driving lever 30 and drives the driving lever 30 to rotate in the second direction, the buffer member 51 does not apply a buffering force to the driving lever 30, so that the driving lever 30 can be driven to rotate by the first door hook 11 more easily.

In some embodiments, as shown in fig. 4, 9, 31 and 32, the first driving arm 31 is provided with a groove 37 at a side facing the cushioned door closing assembly 50, a bottom wall surface of the groove 37 forms the driving surface 36, one side surface of the groove 37 is axially connected to the hole of the connecting member 52, and the other side surface of the groove 37 is provided with a hook 38 spaced apart from the driving surface 36. The buffer member 51 is a damper which is axially connected with the hole of the connecting member 52 by the notch of the groove 37. The interlock device 100 also includes a resilient member 34 coupled to the actuating lever 30.

In the door-opened state, the elastic member 34 applies a driving force to the driving lever 30 to rotate in the first direction, so that the first door hook 11 can smoothly move to abut against the first driving arm 31, and at this time, the connecting member 52 forms a predetermined angle with the driving surface 36, so that the damper does not generate a damping force. In the door closing process, the first door hook 11 is in contact with the first driving arm 31 and drives the driving lever 30 to rotate along the second direction, and as the damper has no buffering force, the driving lever 30 driven by the first door hook 11 only needs to overcome the driving force of the elastic piece 34, so that the resistance is smaller; when the connecting member 52 is rotated to abut against the driving surface 36, the elastic member 34 is switched to a state of applying a driving force to the driving lever 30 to rotate in the second direction, so as to actively drive the driving lever 30 to rotate, the first door hook 11 to move and the door body 200 to close, and at this time, the damper generates a damping force to reduce the noise of closing the door. In the process of opening the door, the first door hook 11 pulls the driving lever 30 to rotate along the first direction, the connecting piece 52 rotates relative to the first driving arm 31, a certain included angle is formed between the connecting piece 52 and the driving surface 36, the bent hook 38 abuts against the connecting piece 52, the included angle is prevented from being too large, the connecting piece 52 is prevented from being separated from the groove 37, and the connecting piece 52 is ensured to be stably connected with the driving lever 30.

For example, in other embodiments, the door closing buffering assembly 50 may include a buffering member 51, the buffering member 51 is a spring or a compression spring, and the door closing buffering assembly 50 is formed as an energy storing buffering assembly. Specifically, one end of the elastic sheet is connected with the interlocking bracket 20, the driving lever 30 is abutted against the other end of the elastic sheet, and the elastic sheet can elastically deform to store energy.

In the door closing process, the driving lever 30 rotates along the first direction and extrudes the other end of the elastic sheet, so that the bending degree of the elastic sheet is increased, energy is accumulated, and the buffering effect and the energy storage effect are achieved; in the process of opening the door, the elastic sheet can release the stored energy to apply a driving force rotating along the first direction to the driving lever 30, so that the driving lever 30 can push the first door hook 11 and the door body 200 to move towards the door opening direction, and the effect of boosting the door opening is achieved. In the door closing state, the direction of the driving force of the elastic sheet acting on the driving lever 30 points to the rotation center of the driving lever 30 or the vicinity of the rotation center, and at this time, the elastic sheet does not provide a component force in the rotation direction of the driving lever 30 or only provides a smaller component force, so that the door body 200 can be tightly closed.

In some embodiments of the present invention, as shown in fig. 34 and 35, in the axial direction of the driving lever 30, the side surface of the connecting member 52 may be provided with an avoiding notch 521 for avoiding the first fitting portion 45. Through setting up and dodging breach 521, there is the clearance in the terminal surface of connecting piece 52 and first cooperation portion 45 in the axial of actuating lever 30, can ensure to rotate the in-process at actuating lever 30, avoids connecting piece 52 and first cooperation portion 45 contact and triggers rotation lever 40 and rotate, avoids taking place monitor switch 201 and micro-gap switch's trigger order confusion.

The interlock device 100 of the microwave oven 1000 according to one embodiment of the present invention will be described in detail with reference to the accompanying drawings, it being understood that the following description is illustrative only and should not be construed as limiting the present invention.

As shown in fig. 1 to 40, a microwave oven 1000 according to an embodiment of the present invention includes a door body 200, a body, and an interlock device 100. The interlock device 100 includes a first door hook 11, a second door hook 12, an interlock bracket 20, a first stop plate 25, a second stop plate 26, a third stop plate, a driving lever 30, a rotating lever 40, a monitor switch 201, a first micro switch 202, a second micro switch 203, an elastic member 34, a buffering door closing assembly 50, a driving member 53, and a swash block 54.

As shown in fig. 3, 23 and 24, the door body 200 is rotatably mounted on the body around a vertical axis, the first door hook 11 and the second door hook 12 are fixedly mounted on the door body 200, and the second door hook 12 is located above the first door hook 11. The interlocking bracket 20 is mounted to the body and includes a bracket body 22 and a cover 23 to define a mounting space 204. The side wall of the mounting space 204 is provided with an avoiding groove 205, the bracket body 22 comprises a first baffle 25, and the first baffle 25 partially shields a communication port of the avoiding groove 205 and the mounting space 204. The second baffle 26 and the third baffle 27 are provided in the installation space 204. The second baffle 26 is a slide plate, and the third baffle 27 is a rectangular plate.

As shown in fig. 17, 18, 21 and 22, the driving lever 30 and the rotating lever 40 are rotatably installed in the installation space 204, the driving lever 30 includes a first driving arm 31, a second driving arm 32 and a fourth engaging portion 33, and the fourth engaging portion 33 passes through the first through hole 231 of the cover 23; the turn lever 40 includes a first turn arm 41 provided with a first fitting portion 45, a second turn arm 42 provided with a second fitting portion 44, and a third turn arm 43 provided with a third fitting portion 46, the second fitting portion 44 passing through the second through hole 232 of the cover 23. And, the arc-shaped section of the second baffle 26 is located at one side of the second rotating arm 42 close to the first door hook 11, and the straight section is located between the rotating shaft of the rotating lever 40 and the first door hook 11. The third baffle is located at a side of the third rotating arm 43 close to the first door hook 11. Further, the first rotating arm 41 is located in the escape groove 205, and the first fitting portion 45 protrudes into the mounting space 204.

As shown in fig. 1, 3, 27, 28, and 30, the second microswitch 203 is provided in the installation space 204, and the monitor switch 201 and the first microswitch 202 are provided on the side of the cover 23 facing away from the holder main body 22. The bracket body 22 is provided with a third through hole 221, the elastic element 34 is arranged on one side of the bracket body 22 opposite to the cover 23, and the connecting part 35 of the driving lever 30 passes through the third through hole 221 to be connected with the elastic element 34.

Further, the swash block 54 is vertically movably mounted to the bracket body 22, and both ends of the driving member 53 respectively abut against the swash block 54 and the bracket body 22 to apply an upward driving force to the swash block 54.

As shown in fig. 5 to 8, in the door open state, the first door hook 11 and the second door hook 12 are separated from the body. The drive member 53 drives the ramp 54 in the high position. The driving lever 30 rotates clockwise to the limit position against the edge of the bracket body 22 under the action of the pulling force of the elastic piece 34, and is disengaged from the monitoring switch 201; the turning lever 40 is in a position separated from the first and second

micro switches

202 and 203.

As shown in fig. 10 to 14, during the door closing process, the door body 200 is pushed, so that the first door hook 11 and the second door hook 12 move in the door closing direction, i.e., move backward. Wherein the first door hook 11 moves in the door closing direction under the limit of the second baffle 26. The rear end of the first door hook 11 extends between the first driving arm 31 and the second driving arm 32, and abuts against the first driving arm 31 to push the driving lever 30 to rotate in the counterclockwise direction; when the driving lever 30 rotates by a preset angle, the pulling direction of the elastic element 34 is switched to drive the driving lever 30 to rotate along the counterclockwise direction, so that the second driving arm 32 of the driving lever 30 automatically pulls the first door hook 11 to move backwards, the connecting element 52 is in contact with the driving surface 36, the driving surface 36 drives the connecting element 52 to move, and the buffer element 51 plays a role in buffering; the driving lever 30 rotates to make the fourth matching part 33 trigger the monitoring switch 201; then, the first door hook 11 moves to contact the first engagement portion 45 of the rotating lever 40, and the rotating lever 40 may be driven to rotate in the clockwise direction. The second and third

fitting portions

44 and 45 of the turning lever 40 sequentially activate the first and second

micro switches

202 and 203. In the door closing process, as shown in fig. 19 and 20, the second door hook 12 abuts against the inclined block 54, and the inclined block 54 compresses the driving element 53 to move the hook portion of the second door hook 12 to the rear side of the inclined block 54, so that the inclined block 54 limits the second door hook 12 to keep the door body 200 closed.

As shown in fig. 1 to 3, when the driving lever 30 rotates to abut against the first limiting portion 21, the rotation is stopped, and the rotation lever 40 triggers the second microswitch 203 to stop rotating. At this time, under the tensile force of the elastic member 34, the second driving arm 32 of the driving lever 30 stops the first door hook 11, so that the door body 200 is maintained in a door-closed state, and the driving lever 30 and the rotating lever 40 are maintained at positions where the monitor switch 201, the first micro switch 202 and the second micro switch 203 are turned on.

In the door opening process, as shown in fig. 15, the door body 200 is rotated in the reverse direction to open, so that the first door hook 11 moves forward. In the moving process, firstly, the stopping force on the rotating lever 40 is cancelled, and the rotating lever 40 rotates anticlockwise under the action of the rebounding force of the first micro switch 202 and the second micro switch 203 so as to release the triggering of the first micro switch 202 and the second micro switch 203; the first door hook 11 is also abutted against the second driving arm 32 in the moving process so as to drive the driving lever 30 to overcome the elasticity of the elastic piece 34 and rotate clockwise, so that the fourth part 45 releases the trigger on the monitoring switch 201; when the direction of the pulling force of the elastic element 34 is switched to the direction in which the driving lever 30 rotates clockwise, the driving lever 30 automatically returns to the position against the first limiting portion 21 and stays at the position under the driving of the elastic element 34, and the driving lever 30 can drive the first door hook 11 to move forward, so that the door body 200 is bounced open. During the door opening process, as shown in fig. 19 and 20, the second door hook 12 abuts against the inclined block 54 again, the inclined block 54 compresses the driving piece 53 to move the hook portion of the second door hook 12 to the front side of the inclined block 54, the limit of the inclined block 54 on the second door hook 12 is released, and the door body 200 can be opened.

To sum up, collude 11 and two lever cooperations through first door, trigger three switch spare respectively, the switch spare does not directly collude 11 direct emergence contact with first door, and three switch spare can be according to monitor switch 201, first micro-gap switch 202, the orderly trigger of second micro-gap switch 203's order, has guaranteed the security of equipment. And the interlock device 100 is compact in structure and low in production cost.

Other constructions and operations of the microwave oven 1000 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the terms "embodiment," "specific embodiment," "example," etc., mean 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. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment 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.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An interlock device for a microwave oven, comprising:

a first door hook;

the interlocking bracket is provided with a first microswitch and a second microswitch;

a rotating lever rotatably mounted to the interlock bracket, the rotating lever including a first rotating arm provided with a first fitting portion, a second rotating arm provided with a second fitting portion, and a third rotating arm provided with a third fitting portion, the first fitting portion, the second fitting portion, and the third fitting portion being arranged in sequence along a first direction around a rotation axis of the rotating lever,

the first door hook is suitable for moving along the door closing direction so as to abut against the first matching part and drive the rotating lever to rotate along the first direction, and the second matching part triggers the first micro switch and then the third matching part triggers the second micro switch.

2. The interlocking apparatus of a microwave oven according to claim 1, wherein the interlocking bracket has a mounting space, a sidewall of the mounting space is provided with an escape groove, the first rotation arm is located in the escape groove, the first fitting portion protrudes into the mounting space, and the first door hook is adapted to protrude into the mounting space.

3. The interlocking device of a microwave oven according to claim 2, wherein the interlocking bracket comprises a first blocking plate partially blocking the communication opening of the avoiding groove and the installation space.

4. The interlocking apparatus of a microwave oven according to claim 1, wherein the interlocking bracket has a mounting space, the second rotating arm is positioned in the mounting space, a second blocking plate is provided in the mounting space, and at least a portion of the second blocking plate is positioned at a side of the second rotating arm adjacent to the first door hook.

5. The interlocking device of a microwave oven according to claim 4, wherein a portion of the second barrier extends in the door closing direction and is located between the rotation shaft of the rotation lever and the first door hook.

6. The interlocking device of a microwave oven as claimed in claim 1, wherein the interlocking bracket has an installation space, the third rotating arm is located in the installation space, and a third baffle is located in the installation space and on a side of the third rotating arm adjacent to the first door hook.

7. The interlocking device of a microwave oven according to claim 1, wherein an angle of the first and second engagement portions with respect to the axis of the rotation lever is α, and an angle of the second and third engagement portions with respect to the axis of the rotation lever is β, α < β.

8. The interlocking device of a microwave oven according to claim 1, wherein a distance between the first engagement portion and the rotation lever axis is greater than or equal to a distance between the second engagement portion and the rotation lever axis, and greater than or equal to a distance between the third engagement portion and the rotation lever axis.

9. The interlocking device of a microwave oven as claimed in claim 1, further comprising:

the monitoring switch is arranged on the interlocking bracket;

the driving lever is rotatably arranged on the interlocking bracket, and the first door hook drives the driving lever to rotate along a second direction to trigger the monitoring switch before driving the rotating lever to rotate.

10. The interlocking device of a microwave oven according to claim 9, wherein the actuating lever comprises a first actuating arm provided with a fourth engaging portion for actuating the monitor switch, and a second actuating arm positioned at a side of the first actuating arm adjacent to the first door hook adapted to abut against the first actuating arm to actuate the actuating lever to rotate,

in a closed door state, the first engagement portion is located between the first drive arm and the second drive arm.

11. The interlocking device of a microwave oven according to claim 10,

in the axial direction of the driving lever, at least one side surface of the second driving arm is provided with a thinning area; and/or the presence of a gas in the gas,

the thickness of the end part of the first door hook is decreased progressively along the door closing direction.

12. The interlocking device of a microwave oven according to claim 10, wherein the first actuating arm is spaced apart from the first fitting portion by a predetermined gap in an axial direction of the actuating lever.

13. An interlock device for a microwave oven according to claim 9, further comprising:

an elastic member connected to the interlocking bracket and the driving lever and having a first driving state to drive the driving lever to rotate in the second direction and a second driving state to drive the driving lever to rotate in the first direction,

in the door closing process, the first door hook is suitable for abutting against the driving lever so that the elastic piece is switched from the second driving state to the first driving state.

14. The interlocking device of a microwave oven according to claim 9, wherein the interlocking bracket is provided with a first position-limiting portion which abuts against the actuating lever to limit the position in the door-closed state and a second position-limiting portion which abuts against the actuating lever to limit the position in the door-open state.

15. The interlocking device of a microwave oven as claimed in claim 10, further comprising:

and the buffering door closing assembly is connected with the interlocking bracket and the driving lever and is used for applying buffering force opposite to the second direction to the driving lever in the door closing process.

16. The interlocking device of a microwave oven as claimed in claim 15, wherein the buffering door-closing assembly comprises:

the buffer piece is rotationally connected with one end of the interlocking bracket;

the driving lever is provided with a driving surface, the connecting piece is rotatably arranged on the first driving arm and forms a preset angle with the driving surface, the other end of the buffer piece is rotatably connected with the connecting piece,

in the door closing process, after the driving lever rotates the preset angle along the second direction, the driving surface is abutted to the connecting piece to drive the connecting piece to rotate.

17. The interlocking device of a microwave oven according to claim 16, wherein a side surface of the connecting member is provided with an escape notch for escaping the first fitting portion in an axial direction of the actuating lever.

18. A microwave oven, comprising:

the door body is arranged on the machine body;

the interlocking device of microwave oven according to any one of claims 1-17, wherein said first door hook is mounted to said door body, and said interlocking bracket is mounted to said body.