Air guide stop mechanism, door lock device and cooking electric appliance

Abstract

The utility model belongs to the technical field of electric appliances, and discloses an air guide stop mechanism, a door lock device and a cooking electric appliance. The air guide stopping mechanism comprises a stopping driving assembly, a transmission shaft is arranged at the power output end of the stopping driving assembly, the air guide part can be partially located in the air channel, the stopping part is used for limiting the door lock part, the transmission shaft is fixedly sleeved with the stopping part, and the stopping part is rotationally arranged on the transmission shaft in a sleeving mode. And the stopping pieces and the air guiding pieces are arranged on the peripheral side of the transmission shaft at intervals. The door lock device comprises a door lock assembly, a driving seat, a door lock driving mechanism and an air guide stop mechanism. The stop driving assembly is installed in the installation cavity, the air guide piece penetrates through the heat dissipation opening, and the stop driving assembly drives the stop piece to be switched between a stop position located on the moving path of the transmission assembly and a non-stop position exiting from the moving path. According to the door lock device and the cooking electric appliance, the air guide stop mechanism can guide air and stop operation of the transmission assembly at the same time, and the use reliability and the structure compactness of the door lock device and the cooking electric appliance are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric appliances, especially to a guide air stop mechanism, a door lock device and a cooking electric appliance. BACKGROUND

[0002] Cooking electric appliances such as dishwashers, steam ovens, etc. usually include a machine body with an inner container and a machine door movably mounted on the machine body, so as to realize the taking and placing of objects in the inner container through the selective opening and closing of the machine door. In order to ensure that the cooking electric appliance cannot be opened at will in the use state, a door lock device is usually provided on the machine body, and a door lock component is provided on the machine door, which cooperates with the door lock device to realize the locking of the machine door when the machine door is closed.

[0003] In order to realize the automatic opening and closing operation of the door, the door lock device in the prior art usually includes a driving motor and a door lock piece, which cooperates with the lock shaft on the machine door to realize unlocking or locking. In the prior art, a sensor is usually used to detect the state of the door lock piece and cooperate with the driving control of the driving motor to realize the stopping of the door lock piece at the target position. This kind of setting may have the problem that the door lock piece is difficult to reliably stop at the target position due to the detection accuracy of the sensor, and may also easily cause the problem of heat accumulation caused by the integration of more electrical devices in the door lock device, thereby affecting the use safety and reliability of the door lock device.

[0004] Therefore, there is an urgent need for a guide air stop mechanism, a door lock device and a cooking electric appliance to solve the above technical problems. SUMMARY

[0005] The utility model aims at providing a guide air stop mechanism and a cooking electric appliance to realize the stopping of the door lock assembly at the preset position, reduce the risk of heat accumulation in the door lock device, and improve the use safety and reliability of the door lock device and the cooking electric appliance.

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

[0007] A guide air stop mechanism for a cooking electric appliance, the cooking electric appliance having a door lock piece and an air duct for condensing and dissipating heat of steam, the guide air stop mechanism comprising a stop driving assembly, the power output end of the stop driving assembly having a transmission shaft capable of rotating about its own axis, the guide air stop mechanism further comprising a guide air piece capable of being partially located in the air duct and a stop piece for limiting the door lock piece, the stop piece being fixedly sleeved on the transmission shaft, the stop piece being rotatably sleeved on the transmission shaft, and the stop piece and the guide air piece being arranged at intervals on the circumferential side of the transmission shaft.

[0008] As an optional technical solution of the guide air stop mechanism, the guide air piece and the stop piece both have a plate-shaped main body structure, and the guide air piece and the stop piece are arranged in opposition and at an angle.

[0009] As an optional technical solution of the air guide stop mechanism, a torsional spring is sleeved on the transmission shaft, a first end of the torsional spring abuts against the stop piece, and a second end of the torsional spring abuts against the air guide piece.

[0010] The torsional spring promotes the stop piece to return to a non-stop position with a first included angle relative to the air guide piece in a first rotation direction, the transmission shaft is rotated in a second rotation direction to make the stop piece rotate to a stop position with a second included angle relative to the air guide piece, the stop piece stops the door lock piece in the stop position, and the second rotation direction is opposite to the first rotation direction.

[0011] As an optional technical solution of the air guide stop mechanism, a limiting structure is arranged between the stop piece and the air guide piece, and the limiting structure limits the stop piece in the stop position from continuing to rotate in the second rotation direction.

[0012] As an optional technical solution of the air guide stop mechanism, the stop piece comprises a main plate part, one end of the main plate part is installed on the transmission shaft through a fixed mounting part, the other end of the main plate part is vertically connected with a stop part, the main plate part is parallel to the axis of the transmission shaft, and the stop part is perpendicular to the axis of the transmission shaft.

[0013] And / or, the air guide piece comprises a first air guide plate part, the first air guide plate part has a first air guide surface for guiding air, and an included angle between the first air guide surface and the main structure of the stop piece is greater than 90°.

[0014] As an optional technical solution of the air guide stop mechanism, the air guide piece further comprises a second air guide plate part, the second air guide plate part is connected to one end of the first air guide plate part away from the transmission shaft, and an included angle between the second air guide plate part and the first air guide surface is obtuse.

[0015] A door lock device is applied to a cooking electric appliance, and the door lock device comprises:

[0016] A door lock assembly comprises a lock seat and a door lock piece movably installed on the lock seat, and the door lock piece can be moved to unlock or lock a lock part of a door.

[0017] A driving seat has an installation cavity, and a heat dissipation opening is formed in a cavity bottom of the installation cavity.

[0018] A door lock driving mechanism comprises a door lock driving piece installed on the driving seat and a transmission assembly in transmission connection between a power output end of the door lock driving piece and the door lock piece.

[0019] The stop driving assembly is installed in the installation cavity, the air guide member is arranged in the heat dissipation opening, and the stop driving assembly drives the stop member to switch between the stop position on the movement path of the transmission assembly and the non-stop position out of the movement path.

[0020] As an optional technical scheme of the door lock device, the door lock driving member comprises a door lock driving motor, the transmission assembly comprises a cam and a transmission rod member, a motor shaft of the door lock driving motor is vertically arranged and connected with the cam, a first end of the transmission rod member is connected with or abuts against the door lock member, and rotation of the motor shaft of the door lock driving motor drives the cam to transmit power to push a second end of the transmission rod member to move, so as to drive the door lock member to move.

[0021] The stop member can move to the rotation path of the cam to limit rotation of the cam, and the door lock driving member and the stop driving assembly are arranged on the upper and lower sides of the cam respectively.

[0022] As an optional technical scheme of the door lock device, when the stop member is in the stop position, the stop member extends from bottom to top.

[0023] And / or, the cavity bottom of the installation cavity is provided with mounting lugs on opposite sides of the heat dissipation opening, and the transmission shaft is rotatably mounted on the two mounting lugs.

[0024] A cooking electric appliance comprises a machine body and a machine door movably mounted on the front side of the machine body, a lock part is arranged on the top of the machine door, the machine body comprises an inner container and a fan cover arranged above the inner container and having an air duct, the fan cover has a condensation air duct communicating with the inner cavity of the inner container and a heat dissipation air duct for dissipating steam in the condensation air duct, the cooking electric appliance further comprises a door lock device, a driving seat is mounted on the upper side of the fan cover, a door lock member cooperates with the lock part, the upper side of the fan cover has an air guide opening communicating with the heat dissipation air duct, the air guide opening communicates with the heat dissipation opening in a front-to-back direction, and an air guide member is arranged in the air guide opening and the heat dissipation opening to guide cold air in the heat dissipation air duct into the installation cavity.

[0025] The cooking electric appliance has the following beneficial effects:

[0026] The air guide stop mechanism provided by the utility model, since the stop piece is fixedly installed on the transmission shaft, the stop piece can rotate with the transmission shaft, so that the position of the stop piece is adjusted, the position conversion requirement of stop and non-stop is met; the air guide piece is rotatably installed on the transmission shaft, the air guide piece remains stationary when the transmission shaft rotates, so that the air guide piece can always be in the position of air guiding, the requirement of continuous air guiding is met; the stop piece and the air guide piece are both installed on the transmission shaft, the integrated setting of the stop structure and the air guide structure is realized, the structure of the stop and air guide is simplified, and the floor space of the stop and air guide is reduced.

[0027] The door lock device provided by the utility model, by setting the stop piece and the stop driving assembly driving the stop piece switching between the stop position on the movable path of the transmission assembly and the non-stop position out of the movable path, the movable of the transmission assembly can be limited by the stop piece on the movable path of the transmission assembly, so that the effect of limiting the movable of the door lock piece to fix the door lock piece at the target position is achieved, since the stop running of the door lock driving piece is not controlled by real-time detection of the position of the transmission assembly or the door lock piece, the accuracy and reliability of the door lock piece keeping to the target position under the stop action of the stop piece can be effectively ensured, and the use reliability of the door lock device is improved; by setting the air guide piece penetrating the heat dissipation opening, the external cooling airflow can be guided into the installation space, so that the electrical device in the installation cavity is cooled, the normal and reliable use of the electrical device is avoided due to the heat aggregation in the installation cavity, and the use safety and reliability of the door lock device are further improved; meanwhile, the stop piece and the air guide piece are both installed on the transmission shaft, so that the structure of the door lock device can be simplified.

[0028] The cooking electrical appliance provided by the embodiment, by adopting the above door lock device and the air guide piece penetrating the air guide opening, the cooling airflow in the heat dissipation air duct can be guided into the installation cavity, the heat dissipation in the installation cavity is realized, the use safety and reliability of the cooking electrical appliance are improved; meanwhile, by adopting the door lock device with the stop piece, the door lock piece can keep to the target position, and the machine door can keep to the set state, so that the use experience of the cooking electrical appliance is improved. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is the sectional view of the cooking electrical appliance provided by the utility model embodiment;

[0030] Figure 2 is the different cooperation state schematic view of the door lock device and the lock shaft provided by the utility model embodiment;

[0031] Figure 3 is the partial structure schematic view of the cooking electrical appliance provided by the utility model embodiment;

[0032] Figure 4 is Figure 3 is the local enlarged view of I in the above-mentioned schematic view.

[0033] Figure 5 is a cross-sectional view of the cooking appliance provided by an embodiment of the present invention in another cross-sectional view;

[0034] Figure 6 yes Figure 5 A partial enlarged view of the middle J;

[0035] Figure 7 This is a structural schematic diagram of the wind guide and stop mechanism provided by an embodiment of the present utility model at one viewing angle;

[0036] Figure 8 It is a structural schematic diagram of the wind guide and stop mechanism provided by an embodiment of the utility model from another perspective.

[0037] In the picture:

[0038] 100, door lock device; 200, lock component; 300, liner; 400, chassis; 401, housing; 402, top support plate; 500, door; 600, control panel; 601, panel bracket; 6011, bracket bottom plate; 700, fan cover; 701, cover body; 702, cover extension; 703, exhaust port; 704, exhaust duct; 7041, condensation duct; 7042, cooling duct; 705, air inlet; 800, cooling fan; 900, condensation assembly; 1000, main control board;

[0039] 1. Door lock drive mechanism; 11. Door lock drive member; 111. Output shaft; 12. Transmission assembly; 121. Cam; 122. Transmission rod; 1221. Slider; 1222. Connecting rod; 14. Drive base; 141. Upper cover; 1411. Ventilation port; 142. Base; 1421. Heat dissipation port; 143. Mounting cavity; 144. Mounting ears;

[0040] 2. Air guide stop mechanism; 21. Stop drive assembly; 211. Stop drive motor; 212. Transmission shaft; 22. Air guide member; 221. Air guide body; 2211. First air guide plate; 2212. Second air guide plate; 222. Rotatable mounting portion; 223. First connecting portion; 23. Stop member; 231. Stop plate; 2311. Stop portion; 2312. Main plate; 232. Fixed mounting portion; 233. Second connecting portion; 234. Position limiting protrusion; 24. Torsion spring;

[0041] 3. Door lock assembly; 31. Door lock member; 311. Lock hook; 3111. Front lock slot; 3112. Rear lock slot; 3113. Partition; 312. Lock shaft; 313. Driven member;

[0042] 4. Door lock reset component; 5. Position detection component. DETAILED DESCRIPTION

[0043] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model and not limit the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for ease of description, not all the structures.

[0044] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0045] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0046] In the description of the embodiment, the terms "up", "down", "right", etc. orientation or position relationship is based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in description and have no special meaning.

[0047] The embodiment provides a door lock device 100 and a cooking electrical appliance comprising the door lock device 100, so as to realize automatic opening and closing of the door and exhaust requirements, and improve use reliability and use safety of the door lock device 100.

[0048] As Figures 1 to 3As shown, in this embodiment, the cooking appliance includes a main body and a door 500 movably mounted on the front side of the main body. The main body includes a chassis 400, an inner pot 300 disposed within the chassis 400, and a steam exhaust device disposed within the chassis 400 and above the inner pot 300. The steam exhaust device includes a hood 700 and a heat dissipation fan 800. The hood 700 has an exhaust duct 704, which includes a condensation duct 7041 communicating with the inner cavity of the inner pot 300 and a heat dissipation duct 7042 for dissipating heat from the steam within the condensation duct 7041. The heat dissipation fan 800 is used to direct external cooling air into the heat dissipation duct 7042 to remove heat for dissipation. A lock component 200 is provided at the top of the door 500, and a door lock device 100 is mounted on the main body. The door lock device 100 cooperates with the lock component 200 to lock the door 500 relative to the main body, preventing the door 500 from being opened during cooking.

[0049] Furthermore, a condensation assembly 900 is provided in the hood 700, which divides the exhaust duct 704 into a condensation duct 7041 and a heat dissipation duct 7042. An exhaust port 703 communicating with the exhaust duct 704 is provided at the front end of the hood 700. The specific structure of the steam exhaust device can be set according to the existing technology.

[0050] The door lock device 100 includes a door lock assembly 3, a drive base 14, and a door lock drive mechanism 1. The door lock assembly 3 includes a lock base and a door lock member 31 movably mounted thereto. The door lock member 31 is used to engage or unlock the door with the lock component 200. The door lock drive mechanism 1 includes a door lock driver 11 mounted on the drive base 14 and a transmission assembly 12 connected between the power output of the door lock driver 11 and the door lock member 31. The door lock driver 11 drives the door lock member 31 through the transmission assembly 12, thereby engaging or unlocking the door lock member 31 with the lock component 200.

[0051] In this embodiment, the door lock driver 11 drives the door lock 31 from the first position to the second position, or from the first position past the second position to the third position. When the door lock 31 is in the first position, the door lock 31 and the lock component 200 are in a first locked state, restricting the door 500 from opening relative to the machine body. When the door lock 31 is in the second position, the door lock 31 and the lock component 200 are in a second locked state, allowing the door 500 to open to a set angle relative to the machine body. When the door lock 31 is in the third position, the lock component 200 can move forward away from the door lock 31, allowing the door 500 to be opened.

[0052] Due to the door lock piece 31 being movable among the first position, the second position and the third position, when the door lock piece 31 is in the first position, the door lock piece 31 can be stably matched with the lock component 200, avoiding the normal operation of the cooking appliance being affected by the manual opening of the door 500 or the user being scalded by the hot gas escaping after the door is opened, improving the reliability of the door locking of the door 500; when the door lock piece 31 is in the second position, the door 500 can be opened at a certain angle relative to the machine body to realize the exhaust operation, and when the door lock piece 31 is moved to the third position, the door lock piece 31 is unlocked with the lock component 200 to allow the door 500 to be completely opened, thereby facilitating the automatic opening of the door 500, reducing the difficulty of opening the door 500 and improving the use experience of the door lock device 100.

[0053] In the embodiment, the driving seat 14 has a mounting cavity 143, and the at least power output end of the door lock driving piece 11 is located in the mounting cavity 143. The driving seat 14 is mounted on the upper side of the air cover 700, and the cavity bottom of the mounting cavity 143 is provided with a heat dissipation opening 1421. The upper side of the air cover 700 has an air inlet 705 which is in communication with the heat dissipation air duct 7042, and the air inlet 705 is in communication with the heat dissipation opening 1421. Further, the driving seat 14 includes a base 142 with an open upper end and an upper cover 141 which is detachably arranged on the upper end of the base 142, and the base 142 and the upper cover 141 jointly form the mounting cavity 143.

[0054] The door lock device 100 further includes an air guide and stopping mechanism 2, which includes a stopping driving assembly 21, an air guide piece 22 and a stopping piece 23. The power output end of the stopping driving assembly 21 has a transmission shaft 212 which can rotate about its own axis, and the stopping piece 23 is fixedly sleeved on the transmission shaft 212. The stopping piece 23 is rotatably sleeved on the transmission shaft 212, and the stopping piece 23 and the air guide piece 22 are arranged at intervals on the circumferential side of the transmission shaft 212. The stopping driving assembly 21 drives the stopping piece 23 to switch between a stopping position in the movement path of the transmission assembly 12 and a non-stopping position out of the movement path. The air guide piece 22 is arranged in the air inlet 705 and the heat dissipation opening 1421 to guide the cold air in the heat dissipation air duct 7042 into the mounting cavity 143.

[0055] The door lock device 100 provided by the present invention is provided with a stopper 23 and the stopper driving assembly 21 drives the stopper 23 to switch between a stop position on the active path of the transmission assembly 12 and a non-blocking position on the exit active path, so that the movement of the transmission assembly 12 can be limited by the stopper 23 being on the active path of the transmission assembly 12, thereby achieving the effect of limiting the movement of the door lock member 31 to fix the door lock member 31 in the target position. Since there is no need to control the stopping operation of the door lock driving assembly 11 by real-time detection of the position of the transmission assembly 12 or the door lock member 31, it can effectively ensure that the door lock member 31 is stopped. The accuracy and reliability of maintaining the target position under the stopping action of the stopper 23 improves the reliability of the door lock device 100; by providing an air guide 22 passing through the heat dissipation port 1421, the external cooling air flow can be guided into the installation cavity 143, thereby dissipating the heat of the electrical components in the installation cavity 143, avoiding heat accumulation in the installation cavity 143 and affecting the normal and reliable use of the electrical components, further improving the safety and reliability of the door lock device 100; at the same time, the stopper 23 and the air guide 22 are both installed on the drive shaft 212, which can simplify the structure of the door lock device 100.

[0056] The wind guide stop mechanism 2 provided by the present invention has a stop member 23 fixedly mounted on the transmission shaft 212, so that the stop member 23 can rotate with the transmission shaft 212 to adjust the position of the stop member 23, thereby meeting the position conversion requirements of the stop and non-stop positions; by rotatably mounting the wind guide member 22 on the transmission shaft 212, the wind guide member 22 can remain stationary when the transmission shaft 212 rotates, so that the wind guide member 22 can always be in the wind guiding position, thereby meeting the demand for continuous wind guiding; by mounting both the stop member 23 and the wind guide member 22 on the transmission shaft 212, the integrated setting of the stop structure and the wind guide structure can be realized, thereby simplifying the structure of the stop wind guide and reducing the space occupied by the stop wind guide.

[0057] Specifically, in this embodiment, when the stop member 23 is in the stop position, the stop member 23 stops the transmission assembly 12, so that the door lock 31 is maintained in the second position, that is, the machine door 500 can be maintained in a position with a certain opening relative to the machine body, achieving continuous exhaust and better meeting the exhaust needs.

[0058] To enhance the ease of engagement between the door lock 31 and the lock assembly 200, in this embodiment, the door lock 31 includes a lock hook 311 extending from rear to front and pivotally mounted on the lock base. The lock hook 311 defines a lock slot with an open end. A partition 3113 protrudes from the slot wall opposite the opening. The partition 3113 extends toward the opening to divide the lock slot into a front lock slot 3111 located in front of the partition 3113 and a rear lock slot 3112 located behind the partition 3113.

[0059] When the door lock 31 is in the first position,Figure 2 As shown in (a), the door lock 31 limits the lock component 200 of the machine door 500 to the rear lock groove 3112 when the machine door 500 is closed, so that the machine door 500 remains in a stable closed state relative to the machine body; when the door lock 31 is in the second position, as shown in Figure 2 As shown in (b), the door lock 31 allows the lock component 200 to move from the rear lock groove 3112 to the front lock groove 3111 and be limited in the front lock groove 3111, so that the machine door 500 is opened to a preset angle; when the door lock 31 is in the third position, as shown in FIG. Figure 2 As shown in (c), the door lock member 31 allows the lock component 200 to move forward and exit the lock slot, thereby opening the door 500. Thus, by configuring the front lock slot 3111 and the rear lock slot 3112 on the lock hook 311, the door lock member 31 and the lock component 200 can switch between a first locked state, a second locked state, and an unlocked state.

[0060] When the door lock 31 is in the first position, the lock hook 311 extends straight from the back to the front, the notch of the lock groove faces the left or right side, and the lock component 200 located in the rear lock groove 3112 abuts against the rear side of the partition 3113, so that the partition 3113 limits the lock component 200 from moving forward; when the door lock 31 is in the second position, the lock hook 311 deflects a first angle relative to the front-to-back direction, so that the opening of the lock groove is tilted toward the front, and the partition 3113 exits the lock component 200 and moves forward The lock component 200 can move from the rear lock slot 3112 to the front lock slot 3111 and abut against the front side wall of the front lock slot 3111, that is, the door 500 can be tilted and opened relative to the machine body to a set angle and remain in this position stably, meeting the exhaust requirement. When the exhaust is completed, the door lock 31 rotates from the second position to the first position, so that the lock hook 311 drives the lock component 200 from the front lock slot 3111 to the rear lock slot 3112, so that the door 500 returns to the closed state. When the door 500 needs to be opened, the lock hook 311 deflects relative to the front-to-back direction by a second angle, which is greater than the first angle, so that the front end of the lock hook 311 and the partition 3113 both exit the forward movement path of the lock component 200, and the lock component 200 in the rear lock slot 3112 can exit the lock slot forward.

[0061] In this embodiment, the door lock device 100 further includes a door lock reset element 4, which forces the door lock element 31 to maintain or return to the first position. Specifically, when the driving force applied by the door lock drive mechanism 1 to the door lock element 31 is removed, the door lock element 31 automatically returns to the first position under the action of the door lock reset element 4. This reduces the difficulty of operating the door lock drive mechanism 1 and simplifies control, thus meeting the user's need to manually close the door and improving the user experience of the cooking appliance.

[0062] Specifically, the front end of the locking hook 311 has a guide surface extending obliquely from front to back towards the opening of the locking slot, when the machine door 500 is open, the door lock 31 is in the first position; during the closing process of the machine door 500, the locking component 200 first contacts the guide surface, pushes the locking hook 311 to rotate from the first position to the third position, and then the locking component 200 can enter the rear locking slot 3112; and when the locking component 200 enters the rear locking slot 3112, the door lock 31 returns to the first position under the action of the door lock return 4, thereby ensuring that the machine door 500 is in a stable closed state through the stable cooperation of the door lock 31 and the locking component 200.

[0063] In the present embodiment, the lower end of the machine door 500 is installed on the machine body through a hinge mechanism, and when the machine door 500 is in a closed state or an exhaust state, the hinge mechanism applies a force to the machine door 500 to make the machine door 500 flip forward. Thus, when the machine door 500 is in a closed state and the door lock 31 moves from the first position to the second position, the machine door 500 can automatically flip forward under the action of the hinge mechanism, thereby driving the locking component 200 to move from the rear locking slot 3112 to the front locking slot 3111; when the door lock 31 moves to the third position, the machine door 500 can flip forward under the action of the force applied by the hinge mechanism, so that the locking component 200 exits the cooperation range of the locking hook 311, and the machine door 500 is flipped open. It is worth noting that when the angle of the machine door 500 relative to the machine body is greater than a certain angle, the hinge mechanism applies a force to the machine door 500 to prevent the machine door 500 from flipping downward, so that the machine door 500 is slowly opened. The specific structure of the hinge mechanism can be set according to the prior art, and this embodiment will not be described here.

[0064] Further, the machine case 400 further comprises a machine frame surrounding the outside of the front end of the inner container 300, a top support plate 402 located above the inner container 300, and a machine shell 401 forming the appearance of the machine body, and the fan cover 700 is installed above the top support plate 402. The machine body further comprises a control panel 600, which is installed on the top front side of the machine frame through a panel support 601, and the support bottom plate 6011 on the lower side of the panel support 601 is overlapped with the upper side of the front end of the fan cover 700. The main control board 1000 is also installed above the fan cover 700, and the control panel 600 and the door lock driving part 11 are both in communication connection with the main control board 1000. The specific structure of the machine case 400 and the control panel 600 and the cooperation with other structures on the machine body can be set according to the prior art, which is not the focus of the present embodiment, and will not be described here.

[0065] The door lock piece 31 further comprises a vertically arranged lock shaft 312, the lower end of the lock shaft 312 being connected with the rear end of the lock hook 311. The lock shaft 312 is rotatably arranged in the lock seat and the lower end thereof penetrates through the bracket bottom plate 6011, and the lock hook 311 is located at the front side of the cover 700, so that the lock hook 311 is exposed outside the machine body, facilitating the cooperation between the lock hook 311 and the lock component 200.

[0066] Preferably, the door lock piece 31 is arranged at the middle position of the machine body in the left-right direction, the door lock driving piece 11 is arranged at one end of the machine body in the left-right direction, and the transmission assembly 12 extends substantially in the left-right direction, so that the space at the top of the machine body can be reasonably utilized and the interference between structures caused by the concentration of local structures can be avoided.

[0067] In the embodiment, the transmission assembly 12 comprises a cam 121 and a transmission rod piece 122, the cam 121 is connected with the power output end of the door lock driving mechanism 1, so that the power output end drives the cam 121 to rotate, the first end of the transmission rod piece 122 is hingedly connected with or abuts against the door lock piece 31, and the second end of the transmission rod piece 122 abuts against the cam 121, so that the rotation of the cam 121 pushes the transmission rod piece 122 to move and forces the door lock piece 31 to rotate from the first position to the second position or to the third position. The structure of the transmission assembly 12 can separate the driving structure of the door lock driving mechanism 1 and the door lock piece 31 in the spatial position by the arrangement of the transmission rod piece 122, so that the problem of requiring a larger installation space caused by the concentration of the structures of the door lock device 100 can be avoided, and the installation convenience and flexibility of the door lock device 100 can be improved.

[0068] In other embodiments, the transmission assembly 12 can comprise the cam 121 but not the transmission rod piece 122, the cam 121 is connected with the power output end and is driven to rotate by the power output end, so as to drive the door lock piece 31 to move.

[0069] In order to improve the transmission convenience between the transmission rod piece 122 and the door lock piece 31, the door lock piece 31 further comprises a driven piece 313 connected with the lock shaft 312, the first end of the transmission rod piece 122 is hingedly connected with or abuts against the driven piece 313, and the acting position of the transmission rod piece 122 on the driven piece 313 is arranged in a spaced manner with the rotation axis of the lock shaft 312, so that the movement of the transmission rod piece 122 in the left-right direction pushes the driven piece 313 to rotate around the axis of the lock shaft 312, and then the door lock piece 31 is rotated.

[0070] Furthermore, the transmission rod 122 includes a slide 1221 and a connecting rod 1222. The slide 1221 can be slidably installed on the slide 1221 in the left and right directions. The first end of the connecting rod 1222 is hinged to the driven part 313, and the second end of the connecting rod 1222 is hinged to the slide 1221. The cam 121 is located on the side of the slide 1221 away from the connecting rod 1222, and the cam 121 can rotate to push the slide 1221 to move in the direction toward the door lock 31.

[0071] like Figures 4 to 8 As shown, in this embodiment, when the stopper 23 is in the stopping position, it is located in the path of the cam 121. That is, the stopper 23 is moved by the stopper cam 121 to stop the movement of the transmission assembly 12, thereby ensuring that the door lock 31 can be stably maintained in the second position. The relatively large size of the cam 121 and the relatively large space required for its rotation facilitate the cooperation between the stopper 23 and the cam 121, thereby improving the stopping effect of the stopper 23. Furthermore, the stopper drive mechanism 1 is mounted on the drive base 14.

[0072] In order to improve the installation convenience of the air guide stop mechanism 2 in the installation cavity 143, the bottom of the installation cavity 143 is provided with mounting ears 144 protruding on the opposite sides of the heat dissipation port 1421, and the two ends of the transmission shaft 212 are respectively rotated and passed through the two mounting ears 144, so that the transmission shaft 212 is arranged across the upper side of the heat dissipation port 1421, thereby facilitating the insertion of the air guide member 22 into the heat dissipation port 1421.

[0073] Since the door lock driver 11 is mounted on one side of the machine body in the left-right direction, the air cover 700 includes a cover body 701, with extended cover portions 702 extending outward in the left-right direction on both sides of the front end of the cover body 701. The driver seat 14 is mounted on the upper side of one of the extended cover portions 702, and the air inlet 705 is provided on the upper side of the extended cover portion 702. The airflow in the heat dissipation duct 7042 flows in the left-right direction within the extended cover portion 702. Therefore, in this embodiment, the transmission shaft 212 preferably extends in the front-to-back direction to facilitate the installation of the air guide member 22 on the transmission shaft 212 and facilitate the structural configuration of the air guide member 22.

[0074] In this embodiment, the stop drive assembly 21 includes a stop drive motor 211 and the above-mentioned transmission shaft 212. The output shaft 111 of the stop drive motor 211 is coaxially connected to the transmission shaft 212, thereby facilitating the installation of the stop member 23 and the air guide member 22 on the transmission shaft 212.

[0075] In the embodiment, the air guide member 22 and the stop member 23 are both plate-shaped, and are arranged opposite to each other at an angle, so as to reduce the size of the air guide and stop mechanism 2 in the axial direction of the transmission shaft 212, reduce the floor space occupied by the air guide and stop mechanism 2, and improve the compactness of the air guide and stop mechanism 2.

[0076] The stop member 23 comprises a stop plate 231, one end of the stop plate 231 is connected with a fixed mounting portion 232, the fixed mounting portion 232 is fixedly sleeved on the transmission shaft 212, and the other end of the stop plate 231 is provided with a stop portion 2311. In the stop position of the stop member 23, the stop portion 2311 is located on the movement path of the transmission assembly 12 to stop the transmission assembly 12. Specifically, in the stop position of the stop member 23, the stop portion 2311 is located on the movement path of the cam 121 to abut against the side wall of the cam 121, so as to stop the cam 121. The fixed mounting portion 232 is provided with one at each end of the stop plate 231 in the axial direction of the transmission shaft 212, so as to improve the mounting stability and reliability of the stop member 23 on the transmission shaft 212.

[0077] In the embodiment, the stop plate 231 comprises a main plate portion 2312, the lower end of the main plate portion 2312 is connected with the fixed mounting portion 232, the upper end of the main plate portion 2312 is provided with the stop portion 2311, the stop portion 2311 is a plate-shaped structure, the main plate portion 2312 is parallel to the axis of the transmission shaft 212, and the stop portion 2311 is perpendicular to the axis of the transmission shaft 212. This arrangement can facilitate the mounting of the stop member 23 on the transmission shaft 212, and can also enhance the overall structural strength and rigidity of the stop member 23, reduce the probability of force damage of the stop member 23, and improve the long-term use reliability of the air guide and stop mechanism 2.

[0078] The main plate portion 2312 comprises a first plate portion and a second plate portion, the length of the first plate portion along the axis of the transmission shaft 212 is greater than the length of the second plate portion along the axis of the transmission shaft 212, the second plate portion is connected to one side of the upper end of the first plate portion, and the stop portion 2311 is connected perpendicularly to the second plate portion. The first plate portion is always located below the cam 121. This arrangement can increase the length of the main plate portion 2312 while avoiding interference between the main plate portion 2312 and the cam 121, thereby improving the structural stability of the stop member 23.

[0079] The air guide member 22 comprises a plate-shaped air guide main body 221 and a rotating mounting portion 222 connected to one end of the air guide main body 221, the rotating mounting portion 222 is rotatably sleeved on the transmission shaft 212, so as to improve the mounting convenience of the air guide member 22 on the transmission shaft 212. The rotating mounting portion 222 is preferably provided with two in the axial direction of the transmission shaft 212, so as to ensure the mounting stability and reliability of the air guide member 22 on the transmission shaft 212.

[0080] The air guide 22 comprises a first air guide plate part 2211 having a first air guide surface for guiding air, the first air guide plate part 2211 is arranged through the heat dissipation opening 1421 and the air guide opening 705, and the included angle between the first air guide surface and the main body structure of the stop piece 23 is greater than 90°. By arranging the first air guide plate part 2211 through the heat dissipation opening 1421 and the air guide opening 705, the air flow effect of the cooling air flow can be improved; at the same time, the included angle between the first air guide surface and the stop piece 23 is greater than 90°, which can avoid the influence of the arrangement of the stop piece 23 on the upward flow of the air flow along the first air guide 22.

[0081] In an embodiment, the first air guide plate part 2211 is inclined from top to bottom along the incoming direction of the cooling air flow to guide the cooling air flow into the mounting cavity 143. That is, the first air guide plate part 2211 is arranged to be inclined from top to bottom along the direction of the door lock assembly 3.

[0082] Further, the upper side of the drive seat 14 is provided with a ventilation opening 1411, the door lock drive motor is mounted on the outer side of the drive seat 14, and the output shaft 111 of the door lock drive motor extends into the mounting cavity 143 through the ventilation opening 1411, and the heat dissipation opening 1421 is arranged opposite to the ventilation opening 1411. By mounting the door lock drive motor on the outer side of the drive seat 14, the space requirement of the mounting cavity 143 can be reduced, and the heat dissipation of the door lock drive motor is more favorable; at the same time, by arranging the ventilation opening 1411 on the upper side of the drive seat 14, the cooling air flow flowing into the mounting cavity 143 can flow upward through the ventilation opening 1411, thereby dissipating heat from the main body structure of the door lock drive motor. The aperture of the ventilation opening 1411 is preferably greater than four times the shaft diameter of the output shaft 111.

[0083] When the stop piece 23 is in the stop position, the main body plate part 2312 is arranged vertically, so that the cooling air flow flowing upward from the first air guide plate part 2211 can continue to flow upward along the main body plate part 2312, thereby improving the heat dissipation effect of the door lock drive motor. Further, when the stop piece 23 is in the non-stop position, the main body plate part 2312 is located on the side of the transmission shaft 212 away from the door lock assembly 3.

[0084] To further improve the wind guiding and draining effect, the wind guiding member 22 further comprises a second wind guiding plate part 2212 connected to the end of the first wind guiding plate part 2211 away from the transmission shaft 212, the included angle between the second wind guiding plate part 2212 and the first wind guiding surface is obtuse, and the second wind guiding plate part 2212 has an upwardly arranged second wind guiding surface. That is, the second wind guiding plate part 2212 is connected to the lower end of the first wind guiding plate part 2211, and the second wind guiding plate part 2212 extends along the incoming flow direction of the cooling air flow to further improve the wind guiding and draining effect of the wind guiding member 22, thereby increasing the cooling air flow into the mounting cavity 143 and improving the cooling effect on the door lock driving member 11. Specifically, the second wind guiding plate part 2212 extends in a direction away from the first wind guiding plate part 2211 and towards the door lock assembly 3.

[0085] In the present embodiment, the torsional spring 24 is sleeved on the transmission shaft 212, the first end arm of the torsional spring 24 abuts against the wind guiding member 22, and the second end arm of the torsional spring 24 abuts against the stop member 23, thereby facilitating the stable retention of the wind guiding member 22 to the wind guiding position by the action of the torsional spring 24, and further ensuring the wind guiding effect.

[0086] Further, the torsional spring 24 urges the stop member 23 to return to the non-blocking position with the first included angle relative to the wind guiding member 22 or to return to the non-blocking position in the first rotation direction, and the transmission shaft 212 rotates in the second rotation direction to make the stop member 23 rotate to the blocking position with the second included angle relative to the wind guiding member 22. Thus, the stop member 23 is rotated to the blocking position by the stop driving assembly 21, and is stably retained in the blocking position by the action force applied by the stop driving assembly 21; when the action force applied by the stop driving assembly 21 is removed, the stop member 23 can return to the non-blocking position under the restoring force of the torsional spring 24. This arrangement can effectively ensure that the stop member 23 is stably retained in the non-blocking position when the stop driving assembly 21 is not running, so as to prevent the arrangement of the stop member 23 from affecting the normal operation of the transmission assembly 12; at the same time, since the torsional spring 24 is used for resetting, the driving cost can be reduced.

[0087] To improve the convenience of connecting the torsional spring 24 with the stop member 23 and the wind guiding member 22, in the present embodiment, the wind guiding member 22 is provided with a first connecting part 223, the stop member 23 is provided with a second connecting part 233 protruding therefrom, and the first connecting part 223 and the second connecting part 233 are both provided with a insertion hole, the first end arm of the torsional spring 24 is inserted into the insertion hole of the first connecting part 223, and the second end arm of the torsional spring 24 is inserted into the insertion hole of the second connecting part 233.

[0088] To further improve the convenience of the torsion spring 24, in the embodiment, the two fixed mounting portions 232 and the two rotating mounting portions 222 are staggered along the transmission shaft 212, the fixed mounting portion 232 and the rotating mounting portion 222 located in the middle and adjacent to each other are spaced apart, and the torsion spring 24 is arranged between the fixed mounting portion 232 and the rotating mounting portion 222.

[0089] Further, the two fixed mounting portions 232 are a main fixed mounting portion and an auxiliary fixed mounting portion respectively, and the two rotating mounting portions 222 are a main rotating mounting portion and an auxiliary rotating mounting portion respectively. The size of the main fixed mounting portion is greater than that of the auxiliary fixed mounting portion, and the size of the main rotating mounting portion is greater than that of the auxiliary rotating mounting portion. In the axial direction of the transmission shaft 212, the main fixed mounting portion, the auxiliary rotating mounting portion, the auxiliary fixed mounting portion, and the main rotating mounting portion are sequentially arranged, thereby reducing the interference between the stop piece 23 and the air guide piece 22 while ensuring the stability of the installation of the stop piece 23 and the air guide piece 22 on the transmission shaft 212. The torsion spring 24 is located between the auxiliary fixed mounting portion and the auxiliary rotating mounting portion. Further, the auxiliary fixed mounting portion is provided with a second connecting portion 233, and the first connecting portion 223 is protrudingly arranged on one end of the air guide body 221 close to the transmission shaft 212.

[0090] In the embodiment, a limiting structure is arranged between the stop piece 23 and the air guide piece 22, which limits the stop piece 23 in the stop position from continuing to rotate in the second rotation direction, thereby avoiding the stop driving assembly 21 from driving the stop piece 23 to rotate beyond the stop position, and better ensuring the stop effect of the stop piece 23 on the transmission assembly 12.

[0091] In the embodiment, the stop piece 23 is protrudingly provided with a limiting protrusion 234, which abuts against the air guide piece 22 when the stop piece 23 rotates to the stop position, so as to limit the stop piece 23 from continuing to rotate in the second rotation direction. Further, the limiting protrusion 234 is arranged on the inner side of the main fixed mounting portion.

[0092] In the embodiment, the position detection piece 5 is arranged in the installation cavity 143, and the position detection piece 5 is used to detect the position of the cam 121. The cooling airflow entering the installation cavity 143 can simultaneously dissipate heat for the position detection piece 5.

[0093] In order to improve the amount of cooling airflow in the heat dissipation air duct 7042 flowing to the air inlet 705, an inner air guiding structure is arranged inside the air cover 700, which guides part of the cooling airflow in the heat dissipation air duct 7042 to the air inlet 705. Specifically, the inner air guiding structure is arranged to form a wind guiding air duct, which is separated from the condensation air duct 7041, and the rear end of the wind guiding air duct is in communication with the heat dissipation air duct 7042, and the air inlet 705 is located in the wind guiding air duct. Thus, by separating the wind guiding air duct from the condensation air duct 7041, the airflow in the condensation air duct 7041 can be prevented from flowing to the air inlet 705, thereby further ensuring the safety and reliability of the door lock driving member 11.

[0094] The heat dissipation air duct 7042 includes a middle air duct located below the condensation air duct 7041 and side air ducts located on both sides of the condensation air duct 7041, and the rear end of the wind guiding air duct is in communication with one side air duct. This arrangement can improve the convenience of communication between the wind guiding air duct and the heat dissipation air duct 7042, and simplify the communication structure between the wind guiding air duct and the heat dissipation air duct 7042. Specifically, the wind guiding air duct extends from the cover main body 701 to the extension cover portion 702.

[0095] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the scope of the present application. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. An air guide and stop mechanism for a cooking appliance having a door lock and an air duct for condensing and dissipating steam, characterized in that: The wind guide stop mechanism comprises a stop drive assembly (21), a power output end of the stop drive assembly (21) having a transmission shaft (212) capable of rotating about its own axis, the wind guide stop mechanism further comprising an air guide member (22) capable of being partially located in the air duct and a stop member (23) for limiting a door lock member (31), the stop member (23) being fixedly sleeved on the transmission shaft (212), the stop member (23) being rotatably sleeved on the transmission shaft (212), and the stop member (23) and the wind guide member (22) being spaced apart on the circumference of the transmission shaft (212).

2. The wind guide and stop mechanism according to claim 1, characterized in that: The air guide member (22) and the stop member (23) both have a plate-shaped main body structure, and the air guide member (22) and the stop member (23) are arranged opposite to each other and at an angle.

3. The wind guide and stop mechanism according to claim 2, characterized in that: A torsion spring (24) is sleeved on the transmission shaft (212), a first end of the torsion spring (24) abuts against the stopper (23), and a second end of the torsion spring (24) abuts against the air guide (22); The torsion spring (24) causes the stopper (23) to maintain or return to a non-blocking position having a first angle relative to the air guide (22) along a first rotation direction, and the transmission shaft (212) rotates along a second rotation direction to rotate the stopper (23) to a stop position having a second angle relative to the air guide (22), and the stopper (23) stops the door lock (31) at the stop position, and the second rotation direction is opposite to the first rotation direction.

4. The wind guide and stop mechanism according to claim 3, characterized in that: A limiting structure is provided between the stopper (23) and the air guide (22), and the limiting structure limits the stopper (23) at the stop position from continuing to rotate along the second rotation direction.

5. The wind guide and stop mechanism according to any one of claims 1 to 4, characterized in that: The stopper (23) comprises a main plate portion (2312), one end of the main plate portion (2312) is mounted on the transmission shaft (212) via a fixed mounting portion (232), the other end of the main plate portion (2312) is vertically connected to a stopper portion (2311), the main plate portion (2312) is parallel to the axis of the transmission shaft (212), and the stopper portion (2311) is perpendicular to the axis of the transmission shaft (212); And / or, the air guide member (22) includes a first air guide plate portion (2211), the first air guide plate portion (2211) has a first air guide surface for guiding air, and the angle between the first air guide surface and the main structure of the stop member (23) is greater than 90°.

6. The wind guide and stop mechanism according to claim 5, characterized in that: The wind guide member (22) further comprises a second wind guide plate portion (2212), wherein the second wind guide plate portion (2212) is connected to an end of the first wind guide plate portion (2211) away from the transmission shaft (212), and an angle between the second wind guide plate portion (2212) and the first wind guide surface is an obtuse angle.

7. A door lock device (100), applied to a cooking appliance, characterized in that: The door lock device comprises: A door lock assembly (3) includes a lock seat and a door lock member (31) movably mounted on the lock seat, wherein the door lock member (31) can be moved to unlock or lock with the lock member (200) of the machine door (500); The drive seat (14) has a mounting cavity (143), and a heat dissipation port (1421) is provided at the bottom of the mounting cavity (143); A door lock drive mechanism (1) comprises a door lock drive member (11) mounted on the drive seat (14) and a transmission assembly (12) connected between a power output end of the door lock drive member (11) and the door lock member (31); According to the air guide stop mechanism according to any one of claims 1 to 6, the stop drive assembly (21) is installed in the installation cavity (143), the air guide member (22) is passed through the heat dissipation port (1421), and the stop drive assembly (21) drives the stop member (23) to switch between a stop position located on the active path of the transmission assembly (12) and a non-blocking position exiting the active path.

8. The door lock device (100) according to claim 7, characterized in that: The door lock driving member (11) includes a door lock driving motor, and the transmission assembly (12) includes a cam (121) and a transmission rod (122). The motor shaft of the door lock driving motor is vertically arranged and connected to the cam (121). The first end of the transmission rod (122) is connected to or abuts the door lock member (31). The rotation of the motor shaft of the door lock driving motor drives the cam (121) to push the second end of the transmission rod (122) to move, thereby causing the door lock member (31) to move. The stopper (23) can move to the rotation path of the cam (121) to limit the rotation of the cam (121), and the door lock drive member (11) and the stopper drive assembly (21) are respectively located on the upper and lower sides of the cam (121).

9. The door lock device (100) according to claim 8, characterized in that: When the stopper (23) is in the stop position, the stopper (23) extends from bottom to top; And / or, the bottom of the installation cavity (143) is provided with mounting ears (144) on opposite sides of the heat dissipation opening (1421), and the transmission shaft (212) is rotatably mounted on the two mounting ears (144).

10. A cooking appliance, comprising a body and a door (500) movably mounted on the front side of the body, wherein a lock component (200) is provided on the top of the door (500), the body comprising an inner pot (300) and a hood (700) located above the inner pot (300) and having an air duct, the air duct comprising a condensation air duct (7041) communicating with the inner cavity of the inner pot (300) and a heat dissipation air duct (7042) for dissipating heat from steam in the condensation air duct (7041), characterized in that: The cooking appliance further comprises a door lock device (100) as described in any one of claims 7 to 9, the drive seat (14) is mounted on the upper side of the air hood (700), the door lock component (31) cooperates with the lock component (200), the upper side of the air hood (700) has an air inlet (705) connected to the heat dissipation duct (7042), the air inlet (705) is directly connected to the heat dissipation port (1421), and the air guide member (22) is passed through the air inlet (705) and the heat dissipation port (1421) to guide the cold air in the heat dissipation duct (7042) into the installation cavity (143).

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