Door control device and cooking device

Abstract

The utility model discloses a door control device and a cooking device, belongs to the technical field of household appliances, and aims to solve the problems that a door hook of an existing door control assembly is easy to hook clothes or scratch limbs of a user and the like. The utility model discloses a door control device, which comprises a trigger area; the driving part is configured to be capable of moving relative to the trigger area and at least has a trigger state and a release state; the microswitch assembly is arranged in the triggering area and provided with a triggering end located on the moving path of the driving piece, and the driving piece can make contact with the triggering end in the triggering state and can be away from the triggering end in the releasing state. According to the door control device and the cooking device, the driving piece arranged on the box body is used for replacing a protruding door hook arranged on the box door in the prior art, and under the condition that the microswitch assembly can send the door closing signal to the control mechanism after the box door is completely closed, the structure of the box door is simplified; the box door is more attractive in appearance, the number of parts is reduced, use is safer, and use experience is good.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a door control device and a cooking device. Background Art

[0002] Including microwave ovens, many cooking devices require that the door of the oven be closed before cooking can be started to ensure safety. The main structure for confirming that the door is closed is the door control component, which can be triggered after the door is closed. The control device can confirm that the door is closed after receiving the signal from the door control component.

[0003] The existing door control assembly mainly includes a door hook set on the box door and a door control device set on the box body, and the door control device mainly includes a micro switch. After the box door is closed, the door hook extends into the outer shell of the box body, and the end of the door hook triggers the micro switch, which sends a signal to the control device to confirm that the box door has been closed.

[0004] The defects of existing door control components include: the door hook protrudes from the inner surface of the door (the side close to the box body when closed), and the hands and arms of the user are likely to touch the door hook when taking or putting food, which may cause the risk of clothes being caught on the door hook and limbs being scratched, resulting in a poor user experience; the door hook increases the overall thickness of the door, and when the door is open, the door hook destroys the overall aesthetics of the cooking device; when the door is opened or closed, the friction between the door hook and the door control device is large, which makes it difficult to open and close the door, creating an obstacle for people with insufficient strength such as the elderly, children or the infirm. Utility Model Content

[0005] The utility model aims to provide a door control device and a cooking device, which solve the problem that the door hooks of the existing door control components are easy to get caught on clothes or scratch the limbs of the user, and are safer to use.

[0006] To achieve this purpose, on the one hand, the utility model adopts the following technical solutions:

[0007] A door control device comprises: a trigger area; a drive member, which is configured to be movable relative to the trigger area and has at least a trigger state hidden in the trigger area under the action of a door body and a release state partially located outside the trigger area; and a micro switch assembly, which is arranged in the trigger area and has a trigger end located on the moving path of the drive member, and the drive member can contact the trigger end in the trigger state and be away from the trigger end in the release state.

[0008] In one of the preferred embodiments, the door control device further comprises an elastic reset member, and the elastic reset member can act on the driving member so that the driving member always has a tendency to move away from the trigger end of the micro switch assembly.

[0009] In one preferred embodiment, the driving member is a pin, and a slide groove is provided in the triggering area, and the pin can be slidably constrained in the slide groove.

[0010] In one of the preferred embodiments, the elastic return member is a spring disposed in the slide groove, one end of the spring abuts against an end wall of the slide groove, and the other end of the spring abuts against an outer wall of the pin.

[0011] In one of the preferred embodiments, the pin includes a protruding section, a reset section and a trigger section connected in sequence, and when the pin moves to the released state, the protruding section is located outside the trigger area.

[0012] In one of the preferred embodiments, the diameter of the protruding section is not less than the diameter of the reset section, so as to form a step for the other end of the spring to abut against.

[0013] In one preferred embodiment, the end surface of the trigger segment facing the micro switch assembly is in an arc shape.

[0014] In one of the preferred embodiments, the microswitch assembly includes a first microswitch, a first rotating finger for triggering the first microswitch, a second microswitch, and a second rotating finger for triggering the second microswitch, and the first rotating finger and the second rotating finger are respectively located on both sides of the moving path of the driving member.

[0015] In one of the preferred embodiments, the first rotating finger and the second rotating finger respectively have abutment points that initially contact the driving member, and there is a distance difference between the two abutment points along the moving direction of the driving member.

[0016] In one preferred embodiment, at least one of the first micro switch and the second micro switch is provided with a contact rebound portion, and the contact rebound portion is used to drive the rotating finger away from the micro switch.

[0017] In one of the preferred embodiments, the door control device further comprises a switch seat, the interior of the switch seat is hollow to form the trigger area, the micro switch assembly is arranged in the switch seat, and the switch seat is provided with an opening for the driving member to pass through.

[0018] In one of the preferred embodiments, a limiting protrusion is provided on one of the switch seat and the driving member, and a limiting groove is provided on the other of the switch seat and the driving member, the limiting protrusion is embedded in the limiting groove, and the limiting groove includes a door opening limiting edge and a door closing limiting edge for preventing the limiting protrusion from continuing to move.

[0019] In one of the preferred embodiments, the driving member is a cylindrical pin.

[0020] On the other hand, the utility model adopts the following technical solutions:

[0021] The cooking device comprises a box body and a box door, and also comprises the door control device mentioned above, wherein the door frame of the box body is provided with a door frame through hole for partially exposing the driving member.

[0022] The door control device disclosed in the utility model includes a driving member and a micro switch assembly. The cooking device disclosed in the utility model includes the above-mentioned door control device, and uses a driving member arranged on the box body to replace the protruding door hook arranged on the box door in the prior art. The driving member can move under the push of the box door until the micro switch assembly is triggered. After the box door is completely closed, the micro switch assembly can send a door closing signal to the control mechanism, thereby simplifying the structure of the box door, making the box door more beautiful in appearance and reducing the number of parts. When taking and placing food, clothes or limbs will not be caught by the protruding door hook, so it is safer to use and has a good user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a cooking device provided in a specific embodiment of the utility model;

[0024] Figure 2 is a cross-sectional view of a door control device provided by a specific embodiment of the utility model;

[0025] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0026] Figure 4 It is a front view of the door control device provided by the specific embodiment of the utility model;

[0027] Figure 5 It is a structural schematic diagram of the door control device provided by the specific embodiment of the utility model in the door closing state;

[0028] Figure 6 It is a structural schematic diagram of a door control device provided by a specific embodiment of the utility model in an open door state.

[0029] In the figure:

[0030] 1. Door control device; 2. Box body; 3. Box door; 4. Limiting protrusion; 5. Limiting groove; 11. Pillar pin; 12. Switch seat; 13. Elastic reset member; 21. Door frame; 51. Door opening limit edge; 52. Door closing limit edge; 111. Protruding section; 112. Reset section; 113. Trigger section; 141. First rotating finger; 142. Second rotating finger; 151. First micro switch; 152. Second micro switch; 153. First micro switch contact; 154. Second micro switch contact. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model. Therefore, the utility model is not limited by the specific implementation methods disclosed below.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0037] This embodiment discloses a door control device and a cooking device including the door control device, such as Figure 1 As shown, the cooking device includes a door control device 1, a box body 2 and a box door 3. The door control device 1 is arranged in the box body 2, and a door frame through hole (not shown) is opened on the door frame 21 of the box body 2.

[0038] The door control device includes a trigger area, a driving member and a micro switch assembly. The driving member is configured to be movable relative to the trigger area and has at least a trigger state in which the driving member is hidden in the trigger area under the action of the door body and a release state in which the driving member is partially located outside the trigger area. The micro switch assembly is arranged in the trigger area and has a trigger end located on the moving path of the driving member, and the driving member can contact the trigger end in the trigger state and be away from the trigger end in the release state.

[0039] Specifically, Figures 2 to 4 As shown, the driving member is a pin 11, and a slide groove (not shown) is provided in the triggering area, and the pin 11 can be slidably constrained in the slide groove. The specific shape and number of the pin 11 are not limited. In this embodiment, the pin 11 is cylindrical and the number is one. The end of the pin 11 away from the micro switch assembly can pass through the door frame through hole, and the door 3 (such as Figure 1When the door 3 is closed, the external force abutting against the pin 11 is removed, the pin 11 can move away from the micro switch assembly, the micro switch assembly is released from the trigger state, and the micro switch assembly sends a door opening signal to the control mechanism.

[0040] In this embodiment, the control mechanism can be a centralized or distributed controller. For example, the controller can be a single single-chip microcomputer or a distributed plurality of single-chip microcomputers. The control program can be run in the single-chip microcomputer to control the microswitch assembly and the heating, humidification, microwave and other functional devices (not shown) to realize their functions.

[0041] A pin 11 arranged on the box body 2 is used to replace the protruding door hook arranged on the box door. When the box door 3 is completely closed, the micro switch assembly can send a door closing signal to the control mechanism, thereby simplifying the structure of the box door 3. The box door 3 has a more beautiful appearance and the number of parts is reduced. When taking and putting food, clothes or limbs will not be caught by the protruding door hook, which is safer to use and provides a good user experience.

[0042] The specific method of realizing "the pin 11 can move in the direction away from the micro switch assembly after the external force is removed" is not limited. In this embodiment, the door control device 1 also includes an elastic reset member 13, which can act on the pin 11 so that the pin 11 always has a tendency to move away from the trigger end of the micro switch assembly. In order to achieve this purpose, the elastic reset member 13 is a spring arranged in the slide groove, one end of the spring is against the end wall of the slide groove, and the other end of the spring is against the outer wall of the pin 11. After the door 3 is closed, the pin 11 moves in the direction away from the door 3, the other end of the elastic reset member 13 is squeezed, the elastic reset member 13 undergoes elastic deformation, and accumulates elastic potential energy; after the door 3 is opened, the external force pushing the pin 11 to move right is removed, and the elastic reset member 13 releases the elastic potential energy, thereby pushing the pin 11 to move in the direction away from the micro switch assembly (to the left).

[0043] The specific structure of the elastic reset member 13 is not limited. In addition to a spring, the elastic reset member 13 can also be a spring sheet, and the specific elastic deformation capacity is sufficient.

[0044] On the basis of the above structure, the pin 11 includes a protruding section 111, a reset section 112 and a trigger section 113 connected in sequence. When the pin 11 moves to the released state, the protruding section 111 is located outside the trigger area. When the elastic reset member 13 is a spring, the spring sleeve is arranged on the outside of the reset section 112, which is convenient for disassembly and assembly. The end face of the trigger section 113 facing the micro switch assembly is in an arc shape, which reduces the friction when the trigger section 113 contacts the micro switch assembly, and saves more effort when the door 3 is closed. The specific shape of the arc surface is not limited, and it can be a hemispherical or semi-ellipsoidal shape, and other arc surfaces that can reduce friction are also acceptable.

[0045] The diameter of the protruding section 111 is not less than the diameter of the reset section 112 to form a step for the other end of the spring to abut against. That is, one end of the spring is fixed, and the other end abuts against the protruding section 111, and the spring can always apply a thrust to the protruding section 111 away from the micro switch assembly.

[0046] The specific shape of the micro switch assembly is not limited, as long as it can send a door closing signal to the control mechanism when the box door 3 is closed. In this embodiment, the micro switch assembly includes a first micro switch 151, a first rotating finger 141 for triggering the first micro switch 151, a second micro switch 152, and a second rotating finger 142 for triggering the second micro switch 152, and the first rotating finger 141 and the second rotating finger 142 are triggering ends. That is, the micro switch assembly includes two groups of micro switch devices, each group of micro switch devices includes a micro switch and a rotating finger for triggering the micro switch.

[0047] The first rotating finger 141 and the second rotating finger 142 are respectively located on both sides of the moving path of the pin 11, and the two different areas on the arc-shaped end surface of the trigger section 113 will correspond to the first rotating finger 141 and the second rotating finger 142 respectively, ensuring that the first rotating finger 141 and the second rotating finger 142 will not interfere with each other during the movement of the pin 11.

[0048] The reason for setting up two sets of micro switch devices is to prevent the micro switch from being accidentally touched and sending a signal, causing the control mechanism to send an erroneous instruction to the heating and humidifying microwave and other functional devices according to the erroneous signal. The two sets of micro switch devices are set separately, and the probability of being accidentally touched is greatly reduced, the increase in manufacturing cost is small, and the cost performance is high. The control mechanism needs to receive two identical signals before sending instructions to the heating and humidifying microwave and other functional devices, and the probability of erroneous operation is greatly reduced.

[0049] The pin 11 can trigger two sets of micro switch devices at the same time, but in this structure, once the pin 11 is touched by mistake, the two sets of micro switch devices will send signals to the control mechanism at the same time, and there is also the phenomenon of misoperation. In order to solve this problem, in this embodiment, the first rotating finger 141 and the second rotating finger 142 respectively have abutment points (not shown) that initially contact with the pin 11, and there is a distance difference between the two abutment points along the moving direction of the pin 11.

[0050] That is, the pin 11 will trigger the two micro switch devices one after the other. When the pin 11 is touched by mistake, only the micro switch device closer to the front will be triggered, and the control mechanism will only receive the signal sent by one micro switch device, so no erroneous operation will occur; the processing accuracy requirement is low, and there is no need to make the size and setting position of the two sets of micro switch devices strictly consistent.

[0051] like Figure 5 As shown, when the door 3 is closed, the pin 11 is pushed to move to the right, the trigger section 113 of the pin 11 abuts against the first rotating finger 141, pushing the first rotating finger 141 to swing, the first rotating finger 141 is pressed onto the contact (not shown) of the first micro switch 151, and the first micro switch 151 is triggered; at this time, the trigger section 113 has just touched the second rotating finger 142, the second rotating finger 142 has just touched the second micro switch contact 154 on the second micro switch 152, and the second micro switch 152 has not been triggered. The pin 11 needs to continue to move to the right for a distance until the second rotating finger 142 completely presses down the second micro switch contact 154, and the second micro switch 152 is triggered. If the pin 11 can continue to move for a distance, it can be determined that the pin 11 is not touched by mistake, but the door 3 is closed.

[0052] like Figure 6 As shown, when the door 3 is open, the pin 11 can move to the left under the rebound action of the elastic reset member 13, and the first rotating finger 141 is separated from the first microswitch contact 153 under the action of gravity, and the first microswitch 151 is released from the triggered state; the second microswitch 152 is provided with a contact rebound portion (not shown), when the pin 11 no longer squeezes the second rotating finger 142, the contact rebound portion pushes the second rotating finger 142 outward through the second microswitch contact 154, and the second microswitch 152 is released from the triggered state. At this point, the control mechanism can determine that the door 3 is open.

[0053] Because two groups of micro-switch devices are provided, there is a situation where the control mechanism only receives the signal sent by one group of micro-switch devices. At this time, the control mechanism determines to maintain the current state. That is, if the box door 3 is currently in the closed state, the control mechanism receives a door opening signal sent by a micro-switch device, the control mechanism will not determine that the box door 3 is open, and it must wait for the other micro-switch device to send a door opening signal before the control mechanism determines that the box door 3 is open. Similarly, if the box door 3 is currently in the open state, the control mechanism receives a door closing signal sent by a micro-switch device, the control mechanism will not determine that the box door 3 is closed, and it must wait for the other micro-switch device to send a door closing signal before the control mechanism determines that the box door 3 is closed, which reduces the probability of misoperation and is safer to use.

[0054] Based on the above structure, Figure 2 and Figure 3 As shown, the door control device 1 further includes a switch seat 12, the interior of the switch seat 12 is hollow to form a trigger area. The micro switch assembly and the elastic reset member 13 are both arranged in the switch seat 12, and the switch seat 12 is provided with an opening for the pin 11 to pass through. The switch seat 12 is preferably a hollow box-shaped structure, which can protect the various components located therein from being corroded by oil smoke and moisture in the cooking device, thereby extending the service life of the door control device 1 and making it safer to use.

[0055] In order to prevent the column pin 11 from moving too far during the forward and return strokes, the present embodiment uses a structure in which a limiting protrusion 4 and a limiting groove 5 cooperate to limit the moving distance of the column pin 11. Specifically, a limiting protrusion 4 is provided on one of the switch seat 12 and the column pin 11, and a limiting groove 5 is provided on the other of the switch seat 12 and the column pin 11. The limiting protrusion 4 is embedded in the limiting groove 5. The two ends of the limiting groove 5 are respectively provided with a door opening limiting edge 51 and a door closing limiting edge 52, as shown in FIG. Figure 5 As shown, when the door is closed, the limiting protrusion 4 moves rightward along with the protruding section 111. When the limiting protrusion 4 abuts against the door closing limiting edge 52, the protruding section 111 cannot continue to move rightward; Figure 6 As shown, when the door is opened, the elastic reset member 13 pushes the protruding section 111 to move leftward, and when the limiting protrusion 4 abuts against the door opening limiting edge 51, the protruding section 111 cannot continue to move leftward.

[0056] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, but may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A door control device, characterized in that: include: Trigger area; A driving member, configured to be movable relative to the triggering area, and having at least a triggering state in which the driving member is hidden in the triggering area under the action of the door body, and a release state in which the driving member is partially located outside the triggering area; as well as, The micro switch assembly is arranged in the trigger area and has a trigger end located on the moving path of the driving member, and the driving member can contact the trigger end in the trigger state and stay away from the trigger end in the release state.

2. The door control device according to claim 1, characterized in that: The door control device (1) further comprises an elastic reset member (13), wherein the elastic reset member (13) can act on the driving member so that the driving member always tends to move away from the trigger end of the micro switch assembly.

3. The door control device according to claim 2, characterized in that: The driving member is a pin (11), and a slide groove is provided in the triggering area. The pin (11) can be slidably constrained in the slide groove.

4. The door control device according to claim 3, characterized in that: The elastic return member (13) is a spring arranged in the slide groove, one end of the spring abuts against the end wall of the slide groove, and the other end of the spring abuts against the outer wall of the pin (11).

5. The door control device according to claim 4, characterized in that: The pin (11) comprises a protruding section (111), a reset section (112) and a trigger section (113) which are connected in sequence; when the pin (11) moves to the released state, the protruding section (111) is located outside the trigger area.

6. The door control device according to claim 5, characterized in that: The diameter of the protruding section (111) is not less than the diameter of the reset section (112), so as to form a step for the other end of the spring to abut against.

7. The door control device according to claim 5, characterized in that: The end surface of the trigger segment (113) facing the micro switch assembly is in an arc shape.

8. The door control device according to claim 1, characterized in that: The micro switch assembly comprises a first micro switch (151), a first rotating finger (141) for triggering the first micro switch (151), a second micro switch (152), and a second rotating finger (142) for triggering the second micro switch (152), wherein the first rotating finger (141) and the second rotating finger (142) are respectively located on both sides of a moving path of the driving member.

9. The door control device according to claim 8, characterized in that: The first rotating finger (141) and the second rotating finger (142) respectively have abutment points for initial contact with the driving member, and along the moving direction of the driving member, there is a distance difference between the two abutment points.

10. The door control device according to claim 8, characterized in that: At least one of the first micro switch (151) and the second micro switch (152) is provided with a contact rebound portion, and the contact rebound portion is used to drive the rotating finger away from the micro switch.

11. The door control device according to any one of claims 1 to 10, characterized in that: The door control device (1) further comprises a switch seat (12), the interior of the switch seat (12) being hollow to form the trigger area, the micro switch assembly being arranged in the switch seat (12), and the switch seat (12) being provided with an opening for the drive member to pass through.

12. The door control device according to claim 11, characterized in that: A limiting protrusion (4) is provided on one of the switch seat (12) and the driving member, and a limiting groove (5) is provided on the other of the switch seat (12) and the driving member. The limiting protrusion (4) is embedded in the limiting groove (5), and the limiting groove (5) includes a door opening limiting edge (51) and a door closing limiting edge (52) for preventing the limiting protrusion (4) from continuing to move.

13. The door control device according to any one of claims 1 to 10, characterized in that: The driving member is a cylindrical pin (11).

14. A cooking device, comprising a housing (2) and a door (3), characterized in that: It also comprises a door control device (1) as claimed in any one of claims 1 to 13, wherein a door frame through hole is provided on the door frame (21) of the box body (2) for partially exposing the driving member.

Images