CN115324430A

CN115324430A - Interlocking device of microwave oven and microwave oven

Info

Publication number: CN115324430A
Application number: CN202210623213.4A
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: 2022-11-11
Anticipated expiration: 2042-06-01
Also published as: CN115324430B

Abstract

The invention discloses an interlocking device of a microwave oven and the microwave oven with the interlocking device, wherein the interlocking device comprises a first door hook; the interlocking bracket is provided with a switch piece; and the driving lever is rotatably arranged on the interlocking support and is used for triggering the switch piece by rotating around the rotating axis along a first direction, and the driving lever comprises a first driving arm and a second driving arm which are arranged along the first direction, wherein a set gap is formed between the second driving arm and the interlocking support under the state that the driving lever triggers the switch piece, so that the first door hook moves between the first driving arm and the second driving arm through the set gap. According to the interlocking device provided by the embodiment of the invention, when the driving lever is abnormally triggered, the microwave oven can be recovered to a normal door closing state, the whole machine does not need to be repaired, and the use cost can be effectively reduced. And be convenient for follow-up repeatedly opening and shutting the door smoothly, whole process is very convenient, has greatly promoted user's use and has experienced.

Description

Interlocking device of microwave oven and microwave oven

Technical Field

The invention relates to the technical field of microwave ovens, in particular to an interlocking device of a microwave oven and the microwave oven.

Background

The side-sliding door microwave oven product is most commonly designed to be a non-slow-closing door, namely, an integral door hook is adopted, the door hook comprises an upper door hook part and a lower door hook part, the door hooks are connected to a door body through door hook springs, in the door closing process, the upper door hook part and the lower door hook part are in contact with a fixed support and move integrally along the support, the support comprises a slope, the door hooks are integrally clamped behind the slope of the support under the action of spring tension of the door hooks after passing through the slope of the support, the door closing process is finished, and the door opening process is the reverse order of the processes.

In recent years, a slow-closing/soft-closing design for 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-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 some related technologies, after the interlocking device of the microwave oven is abnormally triggered, the driving lever rotates to cause the door body to be unable to be closed, and a user needs to close the door of the microwave oven in a manner of dismantling, maintaining and the like, so that the microwave oven is recovered to be normal, that is, the normal operation of the microwave oven cannot be recovered through the interlocking device. However, the use cost of the user is increased by disassembling and maintaining the machine, and the user needs to spend a lot of time and energy, which greatly reduces the use experience.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, one object of the present invention is to provide an interlock device for a microwave oven, which can recover a normal door closing state without requiring a complete machine maintenance when a driving lever is triggered abnormally, and which is very convenient and fast to operate and improves the user experience.

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

An interlock according to an embodiment of the present invention includes: a first door hook; the interlocking bracket is provided with a switch piece; an actuating lever rotatably mounted to the interlock bracket and configured to actuate the switching member by rotating about a rotation axis in a first direction, the actuating lever including a first actuating arm and a second actuating arm arranged against the first direction, wherein a set gap is formed between the second actuating arm and the interlock bracket in a state in which the actuating lever actuates the switching member, for moving the first door hook between the first actuating arm and the second actuating arm through the set gap.

According to the interlocking device provided by the embodiment of the invention, the set gap is formed between the second driving arm and the interlocking bracket in the state that the driving lever triggers the switch piece, so that when the driving lever is abnormally triggered, the first door hook can move to the position between the first driving arm and the second driving arm through the set gap, the microwave oven is enabled to recover the normal door closing state, the whole machine does not need to be dismantled and repaired, and the use cost can be effectively reduced. And, can make first door collude through the action of opening the door once more and drive the drive lever and rotate to reset against first direction to follow-up repeated opening and closing door smoothly, whole process is very convenient, has greatly promoted user's use and has experienced.

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

according to some embodiments of the invention, the interlock bracket has a mounting space, the first drive arm and the second drive arm are located within the mounting space, and the set gap is formed between at least one side of the second drive arm along the rotational axis and an inner wall of the mounting space.

According to some embodiments of the present invention, at least one side surface of the second driving arm in a rotational axis direction of the driving lever is provided with a thinned region forming the set gap with an inner wall of the installation space.

According to some embodiments of the invention, a surface of the thinned region facing the inner wall of the installation space is an inclined surface, and the inclined surface extends close to the inner wall of the installation space along a door closing movement direction of the first door hook.

According to some embodiments of the present invention, the thickness of the end of the first hook decreases along the door-closing moving direction of the first hook.

According to some embodiments of the invention, a side of the first door hook facing the second driving arm in the thickness direction is an inclined surface, and the inclined surface extends away from the second driving arm in the door closing movement direction of the first door hook.

According to some embodiments of the invention, at least one of the first door hook and the second drive arm is of a plastic material.

According to some embodiments of the invention, the switch member comprises a first microswitch, a second microswitch and a monitor switch, the interlock further comprising: the rotating lever is rotatably installed on the interlocking support and comprises a first rotating arm with a first matching portion and a second rotating arm with a second matching portion and a third matching portion, the first rotating arm and the second rotating arm are sequentially arranged along a second direction around a rotating axis of the rotating lever, the first door hook is suitable for moving along a door closing direction, abuts against the first driving arm to drive the driving lever to rotate along the first direction and trigger the monitoring switch, abuts against the first matching portion and drives the rotating lever to rotate along the second direction, and the second matching portion triggers the first micro switch and then the third matching portion triggers the second micro switch.

According to some embodiments of the invention, the interlock bracket has an installation space, a sidewall of the installation space is provided with an avoidance groove, the first rotating arm is located in the avoidance groove, the first fitting portion extends into the installation space, and the first door hook is adapted to extend into the installation space.

According to some embodiments of the invention, the interlock support includes a first blocking plate partially blocking a communication opening of the avoidance groove and the installation space.

According to some embodiments of the invention, the interlock bracket has an installation space, the second rotating arm is located in the installation space, a second baffle is disposed in the installation space, and at least a portion of the second baffle extends in the door closing direction and is located between the rotating shaft of the rotating lever and the first door hook.

According to some embodiments of the invention, the interlock bracket has an installation space, the second rotating arm is located in the installation space, and a third baffle is located in the installation space and located on a side of the second rotating arm close to the first door hook.

According to some embodiments of the invention, the first and second mating portions are angled with respect to the axis of the rotation lever by an angle α, the second and third mating portions are angled with respect to the axis of the rotation lever by an angle β, α > β.

According to some embodiments of the invention, the first mating portion is spaced from the rotational lever axis less than the second mating portion is spaced from the rotational lever axis and less than the third mating portion is spaced from the rotational lever axis.

The microwave oven according to the embodiment of the invention comprises a machine body and a door body arranged on the machine body; according to the interlocking device of the microwave oven, the first door hook is arranged on the door body, and the interlocking bracket is arranged on the machine body.

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 door-open state;

FIG. 2 is a schematic view of a portion of the structure of FIG. 1, wherein the cover is not shown;

FIG. 3 is a left side view of FIG. 1;

fig. 4 is a schematic structural 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 door-open state;

fig. 5 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 an actuating lever;

FIG. 6 is an enlarged schematic view of FIG. 5 at circle A;

fig. 7 is a right side view of a partial structure of a microwave oven according to an embodiment of the present invention, in which a coupling member is in contact with a driving surface;

FIG. 8 is an enlarged structural view taken at circle B in FIG. 7;

fig. 9 is a right side view of a partial structure of a microwave oven in which a first door hook is just in contact with a first fitting portion according to an embodiment of the present invention;

FIG. 10 is an enlarged schematic view of FIG. 9 at circle C;

fig. 11 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 door-closed state;

FIG. 12 is a schematic view of a portion of the structure of FIG. 11, showing the cover;

FIG. 13 is an enlarged schematic view of FIG. 12 at circle D;

FIG. 14 is a left side view of FIG. 11;

fig. 15 is a structural view illustrating 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. 16 is a structural view illustrating 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. 17 is a right side view of a partial structure of a microwave oven according to an embodiment of the present invention, in which an actuating lever is abnormally actuated;

fig. 18 is a schematic structural view of a bracket body, a rotating lever, a connecting member, a buffer member, and an elastic member according to an embodiment of the present invention;

fig. 19 is a schematic view showing a structure in which a holder body, a rotating lever, a connecting member, a buffer member, and an elastic member are coupled according to an embodiment of the present invention;

FIG. 20 is a schematic view of the structure of FIG. 19 from another perspective;

FIG. 21 is a schematic structural view of a drive member, ramp block and bracket body according to an embodiment of the present invention;

FIG. 22 is a schematic view of the mating structure of the driving member, the swash block and the bracket body according to the embodiment of the invention;

FIG. 23 is a schematic structural view of a turn lever and a bracket body according to an embodiment of the invention;

FIG. 24 is a schematic view of the mating structure of the turn lever and the bracket body according to an embodiment of the invention;

fig. 25 is a schematic structural view of a door body, a first door hook and a second door hook according to an embodiment of the invention;

FIG. 26 is a schematic structural diagram of a door body, a first door hook and a second door hook according to an embodiment of the invention;

FIG. 27 is a schematic structural view of a connector according to an embodiment of the present invention;

FIG. 28 is a schematic view of the structure of FIG. 27 from another perspective;

FIG. 29 is a schematic structural view of a turning lever according to an embodiment of the present invention;

FIG. 30 is a schematic view of the structure of FIG. 29 from one perspective;

FIG. 31 is a schematic view of the structure of FIG. 30 from another perspective;

FIG. 32 is a schematic structural view of an actuating lever according to the present invention;

FIG. 33 is a left side view of FIG. 32;

FIG. 34 is a right side view of FIG. 32;

FIG. 35 is a cross-sectional view taken along line E-E of FIG. 34;

FIG. 36 is a schematic structural view of a stent body according to an embodiment of the present invention;

FIG. 37 is a right side view of the boss 36;

FIG. 38 is a cross-sectional view taken along line F-F of FIG. 37;

FIG. 39 is a schematic structural view of a cover according to an embodiment of the present invention;

FIG. 40 is a schematic view of the structure of FIG. 39 from another perspective;

FIG. 41 is a schematic structural view of a first hook and a second hook according to an embodiment of the present invention;

FIG. 42 is a top view of FIG. 41;

FIG. 43 is a schematic structural diagram of a swash block according to an embodiment of the invention;

fig. 44 is a right side view of a partial structure of a microwave oven according to an embodiment of the present invention;

FIG. 45 is a cross-sectional view taken along line G-G of FIG. 44;

FIG. 46 is a sectional view taken along line H-H of FIG. 44;

fig. 47 is a rear view of fig. 32.

Reference numerals:

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 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 swash block 54; setting the gap 55; a first ramp 56; a second inclined surface 57.

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 functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central," "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 are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

In the description of the invention, "a first feature" or "a second feature" may include one or more of the features, "a plurality" means two or more, the first feature may be "on" or "under" the second feature, including the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact 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 at a higher 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 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 the design of no buffer is realized. 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 household electrical appliances field, especially products such as microwave oven, steam ager, oven, also have the design of slowly closing the door, mainly be applied to drop-down door product, the design region concentrates on the door hinge region, and the design philosophy refers to the furniture trade.

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

Referring to fig. 1 to 43, a microwave oven 1000 according to an embodiment of the present invention may include a body, a door 200, and an interlock apparatus 100 of the microwave oven 1000 according to 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 realize corresponding functions according to the state switching of the door body 200.

The interlock apparatus 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 an actuating lever 30.

Specifically, as shown in fig. 1, 2, 6, 41, and 42, the first hook 11 may be attached to the door 200 so as to move relative to the body in response to the opening and closing operation of the door 200. The interlocking bracket 20 is mounted on the machine body so that the first 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, as shown in fig. 1, the interlock bracket 20 is provided with a switch member, which may be respectively referred to as a monitor switch 201, a first microswitch 202 and a second microswitch 203, for example. Wherein the monitor switch 201, the first micro switch 202 and the second micro switch 203 need to be activated in sequence to ensure that the microwave oven 1000 can be powered on and operated normally.

In an embodiment of the present invention, as shown in fig. 2 and 19, the actuating lever 30 is rotatably mounted to the interlock bracket 20, and the actuating lever 30 is operable to rotate about the axis of rotation in a first direction (counterclockwise as viewed in fig. 2) to actuate the switch member. For example, the actuating lever 30 can be used to trigger a monitor switch 201 on the interlocking bracket 20. Furthermore, the actuating lever 30 may comprise a first actuating arm 31 and a second actuating arm 32 arranged against the first direction for performing different functions.

In some related technologies, after the interlocking device of the microwave oven is abnormally triggered, the driving lever is rotated to cause that the door cannot be closed, and a user needs to close the door of the microwave oven in a way of dismantling, maintaining and the like, so that the microwave oven is recovered to be normal, that is, the normal operation of the microwave oven cannot be recovered through the interlocking device. However, the use cost of the user is increased by disassembling and maintaining the machine, and the user needs to spend a lot of time and energy, which greatly reduces the use experience.

In the present application, as shown in fig. 17, 45 and 46, in a state where the driving lever 30 triggers the switching element, for example, when the driving lever 30 is erroneously touched and rotated to trigger the switching element abnormally, a set gap 55 may be formed between the second driving arm 32 and the interlock bracket 20. For example, the set gap 55 may be formed by providing a groove on the driving lever 30, or may be formed by providing a groove on the interlocking bracket 20, and the embodiment of the present invention is not particularly limited.

During normal door closing process, the driving lever 30 is driven by the first hook 11 to rotate to trigger the switch member. And under the state that the driving lever 30 triggers the switch component, the first door hook 11 is positioned between the first driving arm 31 and the second driving arm 32, so that the rotating lever 40 is conveniently driven to rotate on one hand, and the driving lever 30 is conveniently driven to reversely rotate through the matching of the first door hook 11 and the second driving arm 32 when the door is opened, so that the triggering of the switch component is released.

By setting the set gap, when the driving lever 30 triggers the switch part abnormally, the first door hook 11 can pass through the set gap and move to a position between the first driving arm 31 and the second driving arm 32. Therefore, the microwave oven 1000 can be changed from the abnormal triggering state to the normal door closing state, the whole microwave oven is not required to be disassembled and assembled, the problem that the driving lever 30 is triggered abnormally can be solved manually by a user, the operation is very convenient, and the use cost can be effectively reduced.

In addition, when the microwave oven 1000 needs to be opened, the first door hook 11 can be abutted against the second driving arm 32 by the door opening action to drive the driving lever 30 to rotate along the direction opposite to the first direction, so that the driving lever 30 is reset; then, the first door hook 11 can be separated from between the first driving arm 31 and the second driving arm 32, so as to open a containing cavity (not shown) of the machine body, so that the door body 200 is in a door-open state. Thereby, smooth and repeated opening and closing of the door can be realized.

According to the interlocking device of the embodiment of the invention, the set gap 55 is formed between the second driving arm 32 and the interlocking bracket 20 under the condition that the driving lever 30 triggers the switch member, so that when the driving lever 30 is abnormally triggered, the first door hook 11 can move to the position between the first driving arm 31 and the second driving arm 32 through the set gap 55, so that the microwave oven 1000 is recovered to the normal door closing state, the whole machine does not need to be dismantled and repaired, and the use cost can be effectively reduced. And, can make first door collude 11 through the action of opening the door once more and drive actuating lever 30 and rotate to reset against first direction to follow-up repeated opening and closing door smoothly, whole process is very convenient, has greatly promoted user's use and has experienced. Since the interlocking device 100 of the microwave oven 1000 according to the embodiment of the present invention has the above-mentioned advantages, according to the microwave oven 1000 according to the embodiment of the present invention, the interlocking device 100 according to the embodiment of the present invention, by forming the set gap 55 between the second driving arm 32 and the interlocking bracket 20 in the state that the driving lever 30 triggers the switch member, when the driving lever 30 is abnormally triggered, the first door hook 11 can move to between the first driving arm 31 and the second driving arm 32 through the set gap 55, so as to restore the microwave oven 1000 to the normal door-closed state, without dismantling and repairing the whole machine, thereby effectively reducing the use cost. And, can make first door collude 11 through the action of opening the door once more and drive actuating lever 30 and rotate to reset against first direction to follow-up repeated opening and closing door smoothly, whole process is very convenient, has greatly promoted user's use and has experienced.

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. 25, 26, 41 and 42, 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 lever 40 to rotate, and the influence on the orderly triggering of the switch part 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.

According to some embodiments of the present invention, as shown in fig. 18 and 19, the interlock bracket 20 may have a mounting space 204 with the first drive arm 31 and the second drive arm 32 located within the mounting space 204. The installation space 204 may provide a stable working environment for the actuating lever 30, making the structural design of the interlocking bracket 20 more reasonable. Moreover, a set gap 55 is formed between at least one side of the second driving arm 32 along the rotation axis and the inner wall of the installation space 204, and the second driving arm 32 and the inner wall of the installation space 204 can guide and limit the first door hook 11 from two sides, so as to ensure that the first door hook 11 can smoothly move to the position between the first driving arm 31 and the second driving arm 32, and the microwave oven 1000 can smoothly return to the normal door closing state.

Specifically, the installation space 204 may have two inner walls spaced apart from each other along the rotational axis, the two inner walls are respectively located at two sides of the second driving arm 32 along the rotational axis, and the set gap 55 may be a gap between any one of the inner walls and the second driving arm 32, which is not limited in this embodiment of the present invention. In some embodiments, the second driving arm 32 is provided with a set gap 55 along both sides of the rotation axis, so that when the driving lever 30 is abnormally triggered, it is easier to ensure that the first door hook 11 can move between the first driving arm 31 and the second driving arm 32, so that the microwave oven 1000 can smoothly recover the normal door closing effect, and the user experience is greatly improved.

In some embodiments of the present invention, as shown in fig. 32, 33 and 47, at least one side surface of the second driving arm 32 may be provided with a thinned region 39 in the rotational axis direction of the driving lever 30, for example, the thinned region 39 may be a notched groove or the like on the second driving arm 32. The provision of the thinned region 39 allows a set gap 55 to be formed between at least a portion of the second drive arm 32 and the inner wall of the mounting space 204. In addition, the thinning region 39 is disposed on at least one side surface of the second driving arm 32, rather than the inner wall of the installation space 204, so that the processing difficulty can be effectively reduced. For example, it is easier to machine the thinned area 39 with different shapes according to different models of the microwave oven 1000 to form different set gaps 55 to meet different actual use requirements.

It should be noted that the thinned region 39 is disposed on one side of the second driving arm 32, and the thinned regions 39 may be disposed on both sides of the second driving arm 32.

In order to enable the first door hook 11 to pass through the setting gap 55 more smoothly, in some embodiments, as shown in fig. 46 and 47, a surface of the thinned region 39 facing an inner wall of the installation space 204 may be a slope, and the slope extends toward the inner wall close to the installation space 204 in a door closing movement direction of the first door hook 11. Therefore, taking the door closing direction as a front-to-rear direction as an example, the gap size of the front end of the set gap 55 (i.e., the end far from the first drive arm 31) is large, the gap size of the rear end of the set gap 55 (i.e., the end near the first drive arm 31) is small, and the first door hook 11 can more smoothly and easily enter the set gap 55. Moreover, the set gap 55 can guide the first door hook 11 to extend into the door, so that the first door hook 11 can move between the first driving arm 31 and the second driving arm 32 more smoothly, and the microwave oven 1000 can recover the normal door closing effect smoothly.

In addition, in some embodiments of the present invention, as shown in fig. 41 and 42, the thickness of the end portion of the first hook 11 may decrease in the door closing moving direction of the first hook 11, so that the thickness of the first hook 11 at the rear end is smaller and the thickness at the front end is larger as shown in fig. 41. For example, in a state where the driving lever 30 erroneously triggers the monitor switch 201, the first hook 11 is formed to have a thick front and a thin rear, so that the first hook 11 is more easily moved between the first driving arm 31 and the second driving arm 32 through the set gap 55, and thus, the abnormal triggering problem is more easily solved.

It should be noted that, in the embodiment of the present invention, the way of decreasing the thickness of the end portion of the first hook 11 is not particularly limited. In some embodiments, as shown in fig. 42, the side of the first hook 11 facing the second driving arm 32 in the thickness direction is a slope, that is, a thickness decreasing structure is formed by providing a slope. Further, the inclined surface of the first door hook 11 extends away from the second driving arm 32 in the door closing movement direction of the first door hook 11. Through setting up this inclined plane, can form the structure that rear end thickness is less, front end thickness is great at first door and collude 11's tip, simultaneously, the inclined plane can make first door collude 11 and stretch into more smoothly and set for clearance 55, need not to collude 11 to exert too big effort to first door, and first door colludes 11 and stretches into more easily.

In some specific embodiments, as shown in fig. 42 and 47, a surface of the thinned region 39 facing the corresponding inner wall of the installation space 204 is a first inclined surface 56, a side surface of the first door hook 11 facing the second driving arm 32 in the thickness direction is a second inclined surface 57, the first inclined surface 56 can be matched with the second inclined surface 57, and further the first inclined surface 56 can provide a better guiding function for the second inclined surface 57, and the first door hook 11 can move between the first driving arm 31 and the second driving arm 32 more smoothly through the set gap 55, so as to achieve a normal door closing effect.

According to some embodiments of the present invention, at least one of the first hook 11 and the second driving arm 32 may be made of a plastic material, for example, the first hook 11 may be made of a plastic material, the second driving arm 32 may be made of a plastic material, or both the first hook 11 and the second driving arm 32 may be made of a plastic material. Specifically, the plastic material has properties such as easy elastic deformation and easy processing, and the processing accuracy of the set gap 55 can be reduced. For example, even if the set gap 55 is slightly smaller than the thickness of the first hook 11, the first hook 11 may be elastically deformed so as to pass through the set gap 55.

Specifically, when the driving lever 30 is rotated after being triggered by mistake and the door 200 cannot be closed, by applying an acting force to the door 200 toward the body, the front end of the first hook 11 made of plastic material can be bent and deformed to make the process of extending into the set gap 55 smoother, and the plastic material can rapidly pass through the set gap 55 to move to a position between the first driving arm 31 and the second driving arm 32 and enter the position after the normal door 200 is closed.

According to some embodiments of the present invention, as shown in fig. 2, 23 and 24, the switch member may include a first microswitch 202, a second microswitch 203 and a monitor switch 201. During a specific operation, the monitor switch 201, the first micro switch 202 and the second micro switch 203 are sequentially activated to ensure that the microwave oven 1000 is normally powered on and operated.

In an embodiment of the present invention, the interlock device 100 may further include a rotation lever 40, the rotation lever 40 being rotatably mounted to the interlock bracket 20, and the rotation lever 40 may include a first rotation arm 41 provided with a first engagement portion 45, a second engagement portion 44, and a second rotation arm 42 provided with a third engagement portion 46. Moreover, the first rotating arm 41 and the second rotating arm 42 are sequentially arranged along the second direction (clockwise direction as shown in fig. 2) around the rotating axis of the rotating 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. 5 to 10, the first door hook 11 is adapted to move along the door closing direction to abut against the first matching portion 45 and drive the rotating lever 40 to rotate along the second direction, so that the second matching portion 44 triggers the first micro switch 202 and then the third matching portion 46 triggers the second micro switch 203, thereby realizing the orderly triggering of the first micro switch 202 and the second micro switch 203, and being used for detecting the opening and closing state of the door body 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 elastic pieces may be disposed on the first microswitch 202 and the second microswitch 203, and the second matching portion 44 and the third matching portion 46 trigger the first microswitch 202 and the second microswitch 203 through the elastic pieces. 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. 25, 26, 5-10, the door body 200 is rotatably mounted to the housing 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. 5. During the movement, the first hook 11 first contacts the first engaging portion 45 and drives the rotating lever 40 to rotate in the second direction (clockwise direction as shown in fig. 5). After the rotating lever 40 starts to rotate, the second matching portion 44 and the third matching portion 46 rotate in the same angle along the second 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 the 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.

In the correlation technique, the design microwave oven that slowly closes the door of non-has adopted integral door hook, and direct contact between the door body and the door frame lacks effectual buffering design during the contact, consequently, when the great power of user was closed the door, can cause the noise sharply-increased of closing the door, seriously influences user experience.

In the present application, the first matching portion 45, the second matching portion 44 and the third matching portion 46 are sequentially arranged along the second direction, that is, the projections of the first matching portion 45, the second matching portion 44 and the third matching portion 46 on the cross section perpendicular to the axis of the rotating lever 40 are sequentially staggered, so that the orderliness for triggering the first micro switch 202 and the second micro switch 203 can be realized. And can be through increasing the arm length of second rotor arm 42, on the one hand, when second cooperation portion 44 and third cooperation portion 46 triggered corresponding micro-gap switch, the torque that second cooperation portion 44 and third cooperation portion 46 received was great, and the resistance that receives when closing the door promptly is big, when the user vigorously closed the door, can play certain cushioning effect of closing the door, avoids the in-process door body 200 and organism of closing the door to take place violent collision, and then is favorable to reducing the noise of closing the door, improves user's use and experiences. On the other hand, under the condition of rotating at the same angle, the second rotating arm 42 is longer, and the arc drawn in the rotating process is longer, so that the door body 200 only needs to move for a smaller distance when the door is opened, the second matching part 44 and the third matching part 46 can be separated from the microswitch quickly, the microwave oven 1000 stops working, microwave leakage during opening the door can be reduced effectively, and the use safety of the microwave oven 1000 is improved.

According to some embodiments of the present invention, as shown in fig. 29 to 31, the first and

second engagement portions

45 and 44 may be angled with respect to the axis of the turning lever 40 by α, and the second and

third engagement portions

44 and 46 may be angled with respect to the axis of the turning lever 40 by β, where α > β, the first door hook 11 may be brought into contact with the first engagement portion 45 more quickly, the turning lever 40 may be driven to turn more quickly,

specifically, an angle α exists between the first matching portion 45 and the second matching portion 44 about 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 bracket 20, and the potential safety hazard of the microwave oven 1000 caused by the disordered triggering sequence is avoided.

More specifically, in the door closing process, since α > β, α is reasonably increased under the condition that β is constant, and further the distance between the first engaging portion 45 and the first door hook 11 is smaller, the first door hook 11 can be contacted with the first engaging portion 45 more quickly to drive the rotating lever 40 to rotate, and the second engaging portion 44 and the third engaging portion 46 can trigger the corresponding micro switch more quickly, so that the microwave oven 1000 enters a working state, and the waiting time of a user during operation is saved.

In the process of opening the door, as beta is less than alpha, beta is reasonably reduced under the condition that alpha is constant, and then the included angle between the second matching part 44 and the third matching part 46 relative to the axis of the rotating lever 40 is smaller, so that the third matching part 46 and the second matching part 44 can be disconnected with the corresponding micro switches in sequence more quickly, the microwave oven 1000 can stop working more quickly, microwave leakage in the process of opening the door can be effectively reduced, and the microwave oven 1000 is safer to use.

With continued reference to fig. 29-31, 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 smaller than the distance between the second fitting portion 44 and the axis of the rotating lever 40, and smaller than the distance between the third fitting portion 46 and the axis of the rotating lever 40, on one hand, the second fitting portion 44 and the third fitting portion 46 can be disconnected from the corresponding micro switch more quickly during the door opening process, and the microwave leakage can be effectively reduced. On the other hand, be favorable to reducing the noise of closing the door, greatly improve user's use and experience.

Particularly, under the condition that the distance between the first matching part 45 and the axis of the rotating lever 40 is fixed, the distance between the second matching part 44 and the axis of the third matching part 46 and the axis of the rotating lever 40 can be reasonably increased, and further when the rotating lever 40 rotates at the same angle, the arc crossed by the second matching part 44 and the third matching part 46 during rotation is longer, the first door hook 11 can be disconnected with the corresponding micro switch only by moving the second matching part 44 and the third matching part 46 by a smaller distance, the time required for disconnecting the corresponding micro switch is shorter, and further the microwave leakage in the door opening process of the microwave oven 1000 can be effectively reduced.

And, through the interval between reasonable increase second cooperation portion 44, third cooperation portion 46 and the rotation lever 40, at the in-process of closing the door, the torque that second cooperation portion 44, third cooperation portion 46 triggered and correspond the micro-gap switch and received is big, and then can play certain cushioning effect of closing the door, can effectively avoid the in-process door body 200 of closing the door and organism violent collision, the noise when being favorable to reducing to close the door, and then improve user's use and experience.

According to some embodiments of the present invention, as shown in fig. 36-38, the interlock bracket 20 may have a mounting space 204, and a 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 that it is effectively avoided that an elongated object or a finger or the like is inserted into the mounting space 204 along the door closing direction and then contacts with the first rotating arm 41 to rotate the rotating lever 40, and thus the first micro switch 202 and the second micro switch 203 are prevented from being touched by mistake.

And, the first matching portion 45 can be extended into the installation space 204, the first door hook 11 is suitable for being extended into the installation space 204, and the first door hook 11 can be moved 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 matching portion 45 extending into the installation space 204 to drive the rotating lever 40 to rotate.

It should be noted that, because the first matching 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 matching portion 45 to drive the rotating lever 40 to rotate by changing the position of the first matching portion 45 on the first rotating arm 41, and fingers of other strip-shaped objects are not easy to contact with the first matching portion 45 in the installation space 204, so that it can be effectively avoided that objects other than the first door hook 11 contact with the first matching portion 45 to further mistakenly touch the micro switch, thereby ensuring the safety of the microwave oven 1000.

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, as shown in fig. 1, 2, and 36-40, the cover 23 is disposed over the bracket body 22 such that the cover 23 cooperates with the bracket body 22 to define the mounting space 204. Referring to fig. 1 and 2, the first microswitch 202 is provided on the side of the cover 23 facing away from the holder 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 rotation lever 40, the second fitting portion 44 rotates in 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 micro switch 202 and the second micro switch 203 are located on different sides of the cover 23, so that they do not interfere with each other. For example, the projections of the first micro switch 202 and the second micro switch 203 along the axial direction of the rotating lever 40 may at least partially coincide, so that the arrangement of the two micro switches is more compact, and it is faster to sequentially trigger the two micro switches by rotating the lever 40.

According to some embodiments of the present invention, as shown in fig. 23, 24, 36-38, the interlock bracket 20 may include a first blocking plate 25, the first blocking plate 25 may partially block a communication opening between the avoiding groove 205 and the installation space 204, so as to prevent a finger or other objects from contacting the first rotating arm 41 to rotate the rotating lever 40, and the first blocking plate 25 may also limit the first rotating arm 41.

Specifically, as shown in fig. 24, the first rotating arm 41 may be displaced in the direction of the rotating axis in the avoidance groove 205, on one hand, the rotating lever stable state cannot be satisfied, and on the other hand, if part or all of the first rotating arm 41 moves out of the avoidance groove 205, fingers or other long-strip-shaped objects can 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 can also serve to define and guide the first rotating 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 support 20 form a matching groove towards the side surface of the first rotating arm 41, the first rotating arm 41 can stably rotate in the matching groove, the second matching portion 44, the third matching portion 46 and the corresponding micro switch are prevented from being dislocated and cannot be accurately triggered, and the micro switch cannot be accurately triggered to influence the working state of the microwave oven 1000.

Note that the first shutter 25 partially blocks the communication opening between the escape 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 partial shielding, the first rotating arm 41 is convenient to mount while avoiding the occurrence of error touch and limiting, so that the working hours can be effectively saved, and the assembly efficiency is improved.

According to some embodiments of the present invention, as shown in fig. 23, fig. 24, fig. 36 and fig. 37, the interlocking bracket 20 may have a mounting space 204, the second rotating arm 42 is located in the mounting space 204, and a second baffle 26 is disposed in the mounting space 204, at least a portion of the second baffle 26 may extend along the door closing direction and is located between the rotating shaft of the rotating lever 40 and the first door hook 11, on one hand, the second baffle 26 may serve as a limiting and guiding function for the first door hook 11, a portion of the second baffle 26 may serve as a track for the first door hook 11 to move, and the first door hook 11 moves along the door closing direction on the portion of the second baffle 26 to accurately abut against the first matching 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 avoiding false triggering of the micro switch caused by the contact of foreign matters such as fingers and the like with the rotating shaft of the rotating lever 40.

In embodiments where at least a portion of the second flap 26 extends in the door-closing direction, the second flap 26 further includes an arcuate segment that is located at an end of the second flap 26 and extends in an upward direction as shown in fig. 36. The second shutter 26 may be stepped in cross section perpendicular to the axis of rotation. In addition, in the door closing direction, the second baffle 26 and the second rotating arm 42 are staggered, the arc-shaped section of the second baffle 26 is located at the position, close to the first door hook 11, of the second rotating arm 42, and the arc-shaped section of the second baffle 26 can stop foreign matters such as fingers entering the installation space 204, so that the second rotating arm 42 is prevented from being touched by the foreign matters such as the fingers.

According to some embodiments of the present invention, as shown in fig. 39 and 40, the interlocking bracket 20 may have a mounting space 204, the second rotating arm 42 is located in the mounting space 204, and a third baffle 27 is disposed in the mounting space 204, and the third baffle 27 is located on a side of the second rotating arm 42 close to the first door hook 11, so as to prevent fingers or other objects from contacting the second rotating arm 42, and prevent the second rotating arm 42 from being touched by mistake to drive the rotating lever 40 to rotate, thereby affecting the safety of the microwave oven 1000 in use.

Specifically, the third baffle 27 overlaps at least a part of the projection of the door hook in the door closing direction. In addition, the third flap 27 is closer to the first door hook 11 than the second rotating arm 42 along the door closing direction, and the third flap 27 can stop foreign objects such as fingers,

in the embodiment where the interlocking bracket 20 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 third baffle 27, that is, the third baffle 27 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 fingers or other objects from accidentally touching the second rotating arm 42.

According to some embodiments of the present invention, as shown in fig. 1, 11, 32-35, 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 first 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 a first direction (counterclockwise direction as shown in fig. 1), 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 first direction (clockwise direction as shown in fig. 1), when the first door hook rotates to a first preset angle, the first microswitch 202 is triggered, and when the first door hook 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. 32 to 35, the actuating lever 30 may include a first actuating arm 31, and the first actuating arm 31 may be provided with a fourth fitting portion 33, and the fourth fitting portion 33 is used to actuate 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 the actual situation such as the 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 driving portion is not interfered by the first driving arm 31 during the engaging process with the monitor switch 201, and the risk that the first driving arm 31 mistakenly touches the monitor switch 201 is avoided.

In the embodiment in which the installation space 204 is defined by the holder body 22 and the cover 23, as shown in fig. 1, 11, 39 and 40, the monitor switch 201 is provided on the 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 the first through hole 231 to protrude to the 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.

Also, as shown in fig. 32 to 35, the driving lever 30 may further include a second driving arm 32, and the second driving arm 32 is located at 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 at a leading side of the second driving arm 32 in the first 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. 5-10, 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 along the first 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. 11 to 15, in the closed state, the first engagement portion 45 is located between the first drive arm 31 and the second drive arm 32, and it is ensured that the first engagement 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 first 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, the first driving arm 31 and the first matching portion 45 may be spaced apart by a predetermined gap in the axial direction of the driving lever 30, so as to ensure that when the first driving arm 31 rotates to the position of the first matching portion 45 along the first direction, the first driving arm 31 does not contact with the first matching portion 45, and thus the rotating lever 40 is not driven to rotate, thereby avoiding an abnormal situation that the monitoring switch 201 and the micro switch are all triggered because the door body 200 is not completely closed.

According to some embodiments of the present invention, as shown in fig. 1-3, 18-20, the interlock device 100 further includes a resilient member 34, the resilient member 34 connecting the interlock bracket 20 and the first actuating 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. 18, the elastic member 34 is a tension spring, and is two, as shown in fig. 3, 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 extension spring is connected with interlocking bracket 20, and the other end all is connected with connecting portion 35, and the one end of two extension springs is spaced apart 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 first 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. 5-10, 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 first direction; when the driving lever 30 starts to rotate along the first direction or rotates a small angle, the elastic element 34 is in the first driving state to automatically drive the driving lever 30 to rotate along the first direction, so that the second driving arm 32 drives the first door hook 11 to continuously move along the door closing direction, thereby achieving the automatic door closing effect. 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 be ensured to 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, 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 second 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 second 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 first 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 necessary 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 second 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 second 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. 5-10, 36-38, the interlocking bracket 20 may be provided with a first stopper portion 21. In the door-closed state, the first stopper portion 21 can abut against the driving lever 30 to prevent the driving lever 30 from rotating in the first direction. In other words, the first limiting portion 21 can limit the limit position of the driving lever 30 rotating along the first direction, so as to avoid the monitoring switch 201 or the first door hook 11 from being damaged due to the overlarge 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 a first direction, so as to drive the first door hook 11 to move along the door closing direction, thereby achieving 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 limiting portion makes the driving lever 30 balanced in stress, and the driving lever 30 does not rotate continuously 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, and the door body 200 is kept in a door closing state.

According to some embodiments of the present invention, as shown in fig. 2, 36 and 37, the interlocking bracket 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 second direction. In other words, the second limiting portion 24 can limit the limit position of the driving lever 30 rotating along the second direction, so as to avoid position interference caused by an excessively large rotating angle of the driving lever 30 along the second direction, and avoid that the first door hook 11 cannot be normally contacted and matched 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. 3, 14, 18-20, 27 and 28, 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 first 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 specific structure of the door closing buffering assembly 50 is not particularly limited, and the door closing buffering assembly only needs to play a role in buffering door closing. For example, the door closing cushioning assembly 50 may include a damper, a spring, a compression spring, or the like.

For example, in some embodiments, as shown with continued reference to fig. 18-20, 27, and 28, the cushioned door closing assembly 50 includes a cushion 51 and a connector 52. Wherein, one end of the buffer member 51 is rotatably connected to the interlocking bracket 20, and the connecting member 52 is rotatably connected to the other end of the buffer member 51 and the driving lever 30 (such as the first driving arm 31), respectively, so that the buffer member 51 can play a role of buffering during the rotation of the driving lever 30, and the rotatable connecting structure can adapt to the rotation of the driving lever 30, thereby avoiding the occurrence of jamming.

As shown in fig. 6, 8, 10 and 13, the driving lever 30 has a driving surface 36, the link member 52 is rotatably mounted to the driving lever 30, and as shown in fig. 6, the link member 52 forms a predetermined angle with the driving surface 36 in the door open state, and the other end of the buffer member 51 is rotatably connected to the link member 52. After the driving lever 30 is rotated by a predetermined angle in the first direction during the door opening process, 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 along the first 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. 6, 32-34, the first driving arm 31 of the driving lever 30 is provided with a groove 37 at a side facing the door-closing cushioning assembly 50, a bottom wall of the groove 37 forms a driving surface 36, one side of the groove 37 is connected to the hole of the connecting member 52, and the other side of the groove 37 is provided with a hook 38 spaced 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 second direction, so that the first door hook 11 can smoothly move to abut against the first driving arm 31 of the driving lever 30, 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. During the door closing process, the first door hook 11 contacts with the first driving arm 31 of the driving lever 30 and drives the driving lever 30 to rotate along the first direction, and as the damper has no buffering force, the first door hook 11 drives the driving lever 30 to only 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 along the first 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 second direction, the connecting piece 52 rotates relative to the first driving arm 31 of the driving lever 30, so that a certain included angle is formed between the connecting piece 52 and the driving surface 36, and the bent hook 38 abuts against the connecting piece 52 to prevent the included angle from being too large, prevent the connecting piece 52 from being separated from the groove 37, and ensure that the connecting piece 52 is 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 abuts 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 second 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 second 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. 27 and 28, the side surface of the connecting member 52 in the axial direction of the actuating lever 30 may be provided with an escape notch 521 for escaping from the first fitting portion 45. Through setting up and dodging breach 521, there is the clearance at 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 to contact and trigger and rotate 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 not to be construed as limiting the invention.

As shown in fig. 1 to 43, 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 interlocking device 100 comprises a first door hook 11, a second door hook 12, an interlocking bracket 20, a first baffle 25, a second baffle 26, a third baffle 27, a driving lever 30, a rotating lever 40, a monitoring switch 201, a first microswitch 202, a second microswitch 203, an elastic piece 34, a buffering door closing assembly 50, a driving piece 53 and a sloping block 54.

As shown in fig. 25, 26, 41 and 42, the door body 200 is rotatably mounted on the machine body around a vertical axis, the first door hook 11 and the second door hook 12 are fixedly disposed 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. As shown in fig. 18 to 24 and fig. 36 to 40, 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. 18-20, 23, 24, 29-35, the driving lever 30 and the rotating lever 40 are rotatably mounted in the mounting space 204, the driving lever 30 includes a first driving arm 31, a second driving arm 32 and a fourth engaging portion 33, the fourth engaging portion 33 passes through the first through hole 231 of the cover 23; the turning lever 40 includes a first turning arm 41 provided with a first fitting portion 45, and a second turning arm 42 provided with a second fitting portion 44 and 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 shutter 26 is located at a 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 shutter 27 is located at a side of the second rotating arm 42 adjacent to the first 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. 2, 5, 7, 9, 12, 16, and 17, the second microswitch 203 is provided in the mounting 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, as shown in fig. 21, 22 and 43, 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. 1 to 4, 21, 22 and 43, the first door hook 11 and the second door hook 12 are separated from the body in the door opened state. 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. 5 to 15, 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 46 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. 21, 22 and 43, the second door hook 12 abuts against the inclined block 54, and the inclined block 54 compresses the driving piece 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. 2, when the driving lever 30 rotates to abut against the first stopper 21, the rotation is stopped, and the rotation lever 40 triggers the second microswitch 203 to stop rotating. At this time, under the pulling 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 kept in a door closing state, and the driving lever 30 and the rotating lever 40 are kept at positions at which 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. 5 to 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 matching part 33 releases the trigger on the monitoring switch 201; when the pulling direction of the elastic element 34 is switched to the direction in which the driving lever 30 is driven to rotate clockwise, the driving lever 30 is driven by the elastic element 34 to automatically return to the position abutting against the second position-limiting portion 24 and stop at the position, 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. 1, 21, 22 and 43, 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 part 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.

In conclusion, through first door collude 11 and two lever cooperations, trigger three switch spare respectively, the switch spare is direct not take place the contact with first door colludes 11 directness, 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 can effectively reduce the noise of closing the door, reduce the microwave when opening the door and reveal, ensure the security that microwave oven 1000 uses.

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

In the description of the present invention, it should 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 meanings 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," "particular 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 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 switch piece;

an actuating lever rotatably mounted to the interlock bracket and configured to actuate the switch member by rotating about an axis of rotation in a first direction, the actuating lever including a first actuating arm and a second actuating arm arranged opposite the first direction, wherein,

under the state that the driving lever triggers the switch piece, a set gap is formed between the second driving arm and the interlocking bracket, so that the first door hook moves to a position between the first driving arm and the second driving arm through the set gap.

2. The interlocking device of a microwave oven according to claim 1, wherein the interlocking bracket has a mounting space, the first driving arm and the second driving arm are located in the mounting space, and the set gap is formed between at least one side of the second driving arm along the rotation axis and an inner wall of the mounting space.

3. The interlocking device of a microwave oven according to claim 2, wherein at least one side surface of the second actuating arm is provided with a thinned region in a rotational axis direction of the actuating lever, the thinned region forming the set gap with an inner wall of the installation space.

4. The interlocking device of a microwave oven according to claim 3, wherein a surface of the thinned region facing the inner wall of the installation space is a slope extending close to the inner wall of the installation space in a door closing movement direction of the first door hook.

5. The interlocking device of a microwave oven as claimed in claim 1, wherein the thickness of the end of the first door hook is decreased in the direction of the door closing movement of the first door hook.

6. The interlocking device of a microwave oven according to claim 5, wherein a side of the first door hook facing the second driving arm in a thickness direction is a slope extending away from the second driving arm in a door closing movement direction of the first door hook.

7. The interlocking device of claim 1, wherein at least one of the first door hook and the second actuating arm is made of plastic.

8. An interlock device for a microwave oven as claimed in any one of claims 1 to 7, wherein the switch member includes a first micro switch, a second micro switch and a monitor switch, the interlock device further comprising:

the rotating lever is rotatably arranged on the interlocking bracket and comprises a first rotating arm provided with a first matching part and a second rotating arm provided with a second matching part and a third matching part, the first rotating arm and the second rotating arm are sequentially arranged along a second direction around the rotating axis of the rotating lever,

the first door hook is suitable for moving along the door closing direction, abuts against the first driving arm to drive the driving lever to rotate along the first direction and trigger the monitoring switch, then abuts against the first matching part to drive the rotating lever to rotate along the second direction, and the second matching part triggers the first micro switch and then the third matching part triggers the second micro switch.

9. An interlocking device for a microwave oven as claimed in claim 8, characterized in that said interlocking bracket has a mounting space, a sidewall of said mounting space is provided with an avoiding groove, said first rotating arm is located in said avoiding groove, said first fitting portion is extended into said mounting space, and said first door hook is adapted to be extended into said mounting space.

10. An interlocking device for a microwave oven as claimed in claim 9, characterized in that said interlocking bracket comprises a first blocking plate partially blocking a communication opening of said escape recess and said installation space.

11. The interlocking apparatus of a microwave oven according to claim 8, wherein the interlocking bracket has an installation space, the second rotating arm is located in the installation space, a second baffle is provided in the installation space, and at least a portion of the second baffle extends in the door closing direction and is located between the rotating shaft of the rotating lever and the first door hook.

12. An interlocking device for a microwave oven as claimed in claim 8, wherein said interlocking bracket has an installation space, said second rotary arm is positioned in said installation space, and a third baffle is provided in said installation space, said third baffle being positioned at a side of said second rotary arm adjacent to said first door hook.

13. The interlocking device of claim 8, wherein an angle between said first and second engagement portions with respect to said rotation lever axis is α, and an angle between said second and third engagement portions with respect to said rotation lever axis is β, α > β.

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

15. 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 1-14, wherein said first door hook is mounted to said door body, and said interlocking bracket is mounted to said body.