Door lock device and electric appliance

Abstract

The utility model belongs to the technical field of electric appliances, and discloses a door lock device and an electric appliance. The door lock device comprises an actuating assembly, a door lock assembly and a reset piece. The actuating assembly comprises a driving part and an actuating cam, the actuating cam is of a crescent structure, the driving part drives the actuating cam to rotate around a preset rotating direction, and in the preset rotating direction, the outer convex curved surface of the crescent structure is located on the front side of the inner concave curved surface of the crescent structure; the door lock assembly is provided with a sliding part and a door lock part which are in transmission connection, the outer convex curved surface can push the sliding part to move in the direction away from the rotating axis of the actuating cam when the actuating cam rotates so that the door lock part can move to the unlocking position, and the inner concave curved surface can be separated from the sliding part all the time; the reset piece is used for applying force to the sliding piece to enable the sliding piece to move in the direction of the rotating axis so that the door lock piece can be kept or reset to the locking position. According to the electric appliance provided by the utility model, the matching reliability of the door lock piece and the lock component can be improved, and the operation reliability and smoothness of the door lock device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical appliances, in particular to a door lock device and an electrical appliance. Background Art

[0002] Appliances such as steam ovens and dishwashers all consist of a main body and a door located on the front of the main body. The door can be opened or closed relative to the main body to open or close the internal space of the appliance. To ensure the stability of the door when closed, the main body is usually equipped with a door lock device, and the door is equipped with a lock component that cooperates with the door lock device. When the door is closed, the door lock device and the lock component cooperate to lock, preventing the door from being opened while the appliance is in operation.

[0003] The prior art provides a cooking device having a door lock device comprising a driving member, a cam, a door lock, and an elastic member. One end of the door lock is rotatably mounted on a fixed seat at the top of the inner pot, a second end of the door lock extends forward to engage with a lock shaft, and a side of the door lock is provided with a protruding portion. The cam has a cylindrical body and a protruding portion protruding from the outer wall of the body. The driving member drives the cam to rotate, causing the protruding portion to push against the protruding portion, thereby rotating the door lock from a locked position to an unlocked position. The elastic member forces the door lock to return from the unlocked position to the locked position.

[0004] The cooking equipment provided by the prior art has a cam that pushes the door lock through a raised portion protruding from its outer wall. When the cam pushes the door lock to the unlocked position, the raised portion suddenly separates from the door lock, and the door lock quickly resets under the action of the elastic member, causing the door lock to move at a relatively fast speed. This is prone to causing loud noise due to friction with other structures or collision between the door lock and the locking limit structure, thus affecting the user experience of the cooking equipment. At the same time, the door lock may easily cause deformation and damage due to long-term collision with the locking limit structure, thereby causing poor coordination with the lock component or even failure, thus affecting the reliability and service life of the door lock device. Utility Model Content

[0005] The purpose of the present utility model is to provide a door lock device and an electrical appliance, which can improve the reliability and smoothness of the rotation switching of the door lock member between the unlocked position and the locked position, improve the operating reliability of the door lock device and the electrical appliance, and reduce the noise during the operation of the door lock device and the electrical appliance.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] A door lock device, used to cooperate with a lock component, comprising:

[0008] An actuating assembly comprising a driving member and an actuating cam, wherein the actuating cam is a crescent-shaped structure, and the driving member drives the actuating cam to rotate about a preset rotation direction. In the preset rotation direction, the convex surface of the crescent-shaped structure is located in front of the concave surface of the crescent-shaped structure.

[0009] A door lock assembly comprising a sliding member and a door lock member in a transmission connection, wherein the convex curved surface is capable of pushing the sliding member in a direction away from the rotation axis of the actuating cam when the actuating cam rotates, thereby moving the door lock member to an unlocked position, and the concave curved surface is always separated from the sliding member;

[0010] A reset member is used to apply a force to the sliding member to move it toward the rotation axis so that the door lock member is maintained or restored to the locked position.

[0011] As an optional technical solution for the door lock device, the actuating cam has an actuating end with the largest distance from the rotation axis, the convex curved surface includes a first curved surface segment and a second curved surface segment that are smoothly connected, and the concave curved surface, the second curved surface segment, and the first curved surface segment are smoothly connected in sequence along the preset rotation direction;

[0012] The distance between the first curved surface segment and the rotation axis gradually decreases along the preset rotation direction, and the first curved surface segment is at least partially capable of pushing the sliding member to move in a direction away from the rotation axis;

[0013] The second curved surface segment at least includes a return support segment located between the actuating end and the concave curved surface, wherein the distance between the return support segment and the rotation axis gradually increases along the preset rotation direction, and the return support segment is capable of abutting against the sliding member when the sliding member moves toward the rotation axis;

[0014] The curvature of the first curved surface segment is smaller than the curvature of the second curved surface segment.

[0015] As an optional technical solution for the door lock device, the second curved surface segment also includes a deceleration drive segment located between the first curved surface segment and the actuating end, and the distance between the deceleration drive segment and the rotation axis gradually decreases along the preset rotation direction.

[0016] As an optional technical solution for the door lock device, in a projection plane perpendicular to the rotation axis, the rotation center of the actuating cam is O1, the projection of the actuating end in the projection plane is E, the center of the circle corresponding to the second curved surface segment is O2, and point O2 is on the line connecting points O1 and E;

[0017] And / or, the portion of the first curved surface segment that pushes the sliding member to move in a direction away from the rotation axis is an actuating curved surface segment. Along the preset rotation direction, the length of the actuating curved surface segment is L1, the length of the deceleration drive segment is L2, and 0.7<L1 / <1.

[0018] As an optional technical solution for the door lock device, when the deceleration drive section abuts against the sliding member, a pressure angle at the abutment point between the deceleration drive section and the sliding member is β, and β≤30°.

[0019] As an optional technical solution of the door lock device, the curvature of the concave curved surface is smaller than the curvature of the second curved surface segment;

[0020] and / or, the curvature of the concave curved surface is greater than the curvature of the first curved surface segment;

[0021] And / or, the concave curved surfaces are all located on one side of a plane passing through the rotation axis and the actuating end.

[0022] As an optional technical solution of the door lock device, the sliding member has an abutment portion, the abutment portion extends perpendicular to the sliding direction of the sliding member, and the first curved surface segment abuts against the abutment portion.

[0023] As an optional technical solution for a door lock device, the first end of the abutment portion is smoothly connected to a first arc-shaped transition portion, and the arc-shaped opening of the first transition portion faces away from the actuating cam. When the door lock member returns from the unlocked position to the locked position, the part of the return support section close to the concave surface abuts against the first transition portion.

[0024] As an optional technical solution for a door lock device, the door lock assembly also includes a connecting rod and a lock seat, the door lock member is rotatably mounted on the lock seat, one end of the connecting rod is hinged to the sliding member, the second end of the connecting rod is hinged to the door lock member, and the hinge axis of the connecting rod and the door lock member is parallel to the rotation axis of the door lock member and is spaced apart, and the sliding of the sliding member actuates the connecting rod to push the door lock member to rotate and switch between the unlocked position and the locked position.

[0025] An electrical appliance comprises a body and a door movably mounted on the body, the door being provided with a locking component, and further comprising a door lock device as described above, the door lock device being mounted on the body, the door lock component being capable of cooperating with the lock component in the locked position to lock the door relative to the body, and the door lock component being capable of disengaging from the lock component in the unlocked position to enable the door to be opened relative to the body.

[0026] Beneficial effects of the utility model:

[0027] The door lock device provided by the present invention has the following advantages: the outer convex surface of the actuating cam can push the sliding member so that the sliding member actuates the door lock member to the unlocked position, and the reset member can prompt the door lock member to return to the locked position, so that the door lock member can be driven to the unlocked position to achieve unlocking between it and the lock member, and also achieve automatic reset, ensuring that the machine door will not be opened at will and can be manually reset after being opened, thereby improving the reliability of the door lock device; at the same time, since the outer convex surface and the inner concave surface are smoothly connected, and the inner concave surface is always separated from the sliding member, the sliding member always abuts against the outer convex surface during the reset process, so that the sliding member is affected by the reset member The door lock is reset by the combined action of the elastic force of the reset member and the resisting force applied by the actuating cam. The reset speed is slower than the reset speed under the elastic force of the reset member alone, avoiding the impact and noise caused by the rapid reset of the sliding member and improving the service life of the sliding member. Furthermore, since the concave curved surface is always separated from the sliding member and the concave curved surface is concave, the sliding member can be quickly separated from the concave curved surface when the door lock member returns to the locked position, avoiding the problem of the sliding member and the door lock member not being reset into place due to the sliding member always abutting against the actuating cam, thereby improving the reliability of the door lock member resetting to the locked position, thereby improving the reliability and smoothness of the operation of the door lock device.

[0028] The electrical appliance provided by the present invention can improve the reliability of the use of the electrical appliance and enhance the user experience of the electrical appliance by adopting the above-mentioned door lock device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a partial structural diagram of an electrical appliance provided by an embodiment of the present utility model;

[0030] Figure 2 This is a partial structural cross-sectional view of an electrical appliance provided by an embodiment of the present utility model;

[0031] Figure 3 yes Figure 2 A partial enlarged view of point I in the middle;

[0032] Figure 4 This is a structural diagram of the door lock device provided by an embodiment of the present utility model when the door lock member is in the locked position;

[0033] Figure 5 This is a schematic structural diagram of the door lock device provided by an embodiment of the present utility model when the door lock member is in the unlocked position;

[0034] Figure 6 This is a partial structural diagram of a door lock device provided by an embodiment of the present utility model;

[0035] Figure 7 Schematic diagram of the outer contour of the actuating cam provided by an embodiment of the present utility model;

[0036] Figure 8 Schematic diagram of the cooperation between the actuating cam and the sliding member at different rotation angles provided by an embodiment of the utility model;

[0037] Figure 9 A schematic diagram of the sliding stroke of the sliding member provided in an embodiment of the utility model.

[0038] In the picture:

[0039] 100, door lock device; 200, lock component; 300, machine body; 301, liner; 302, top support plate; 303, front frame; 400, machine door; 500, control panel;

[0040] 1. Actuating assembly; 11. Driving member; 111. Motor shaft; 12. Actuating cam; 121. First curved surface segment; 1211. Actuating curved surface segment; 122. Second curved surface segment; 1221. Return support segment; 1222. Speed ​​reduction drive segment; 1223. Actuating end; 123. Concave curved surface; 124. Base circle curved surface segment;

[0041] 2. Door lock assembly; 21. Sliding member; 211. Side panel; 2111. Abutment portion; 2112. First transition portion; 2113. Second transition portion; 212. Sliding base plate; 213. Guide groove; 22. Door lock member; 221. Lock shaft; 222. Lock hook; 2221. Lock groove; 23. Connecting rod; 24. Lock seat; 25. Connecting member;

[0042] 3. Reset parts;

[0043] 4. Drive seat; 41. Mounting cavity; 42. Guide protrusion;

[0044] 5. Inspection parts. DETAILED DESCRIPTION

[0045] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0046] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0047] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0048] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0049] like Figure 1 and Figure 2 As shown, this embodiment provides an electrical appliance, including a body 300 and a door 400. The body 300 is provided with an inner pot 301 with a front opening, and the door 400 is movably mounted on the front side of the body 300 and can open or close the front opening of the inner pot 301. The electrical appliance also includes a door lock device 100 and a lock component 200. The door lock device 100 is mounted on the body 300, and the lock component 200 is mounted on the door 400. When the door 400 closes the front opening of the inner pot 301, the door lock device 100 can cooperate with the lock component 200 to lock the door 400 and the body 300 to ensure the reliability of the electrical appliance. The electrical appliance can be a cooking device such as a steamer, an oven, or a steam-bake combination machine, or can be other types of electrical appliances such as a dishwasher. The utility model does not limit the type of electrical appliance.

[0050] In this embodiment, the lower end of the door 400 is hingedly connected to the body 300 via a hinge mechanism. Specifically, the upper end of the door 400 can be tilted outward relative to the body 300 to open the front opening of the inner container 301. When closing the door, the upper end of the door 400 tilts toward the body 300 to close the door 400 relative to the body 300. Specifically, in this embodiment, the lock component 200 is disposed at the top of the door 400, and the door lock device 100 is mounted above the inner container 301. In other embodiments, the door 400 may be hingedly connected to the body 300 on either side. In this arrangement, the lock component 200 is mounted on the side of the door 400 away from its rotational axis. The installation position of the door lock device 100 is determined based on the position of the lock component 200.

[0051] In this embodiment, the hinge mechanism constantly applies an elastic force to the closed door 400, causing the door 400 to flip outward relative to the body 300. Consequently, when the door lock device 100 and the lock component 200 are unlocked, the door 400 automatically flips outward under the elastic force of the hinge mechanism, allowing the door 400 to automatically open, thereby improving the convenience of opening the appliance door and enhancing the convenience and user experience of the appliance. In other embodiments, the door 400 may only be opened manually by the user.

[0052] like Figures 2 to 7 As shown, in this embodiment, the door lock device 100 includes an actuating assembly 1, a door lock assembly 2, and a reset member 3. The actuating assembly 1 includes a driving member 11 and an actuating cam 12. The actuating cam 12 is a crescent-shaped structure. The driving member 11 drives the actuating cam 12 to rotate about a predetermined rotational direction. In the predetermined rotational direction, the convex surface of the crescent-shaped structure is located in front of the concave surface 123 of the crescent-shaped structure. The door lock assembly 2 includes a sliding member 21 and a door lock member 22, which are connected by a transmission mechanism. The convex surface can push the sliding member 21 in a direction away from the rotation axis of the actuating cam 12 when the actuating cam 12 rotates, thereby moving the door lock member 22 to an unlocked position. The concave surface 123 is always separated from the sliding member 21. The reset member 3 is used to apply a force to the sliding member 21 to move it toward the rotation axis, thereby maintaining or returning the door lock member 22 to the locked position.

[0053] That is, when the door lock 22 is in the locked position, the door lock 22 can cooperate with the lock component 200 to lock the machine door 400 relative to the machine body 300. When the door lock 22 is in the unlocked position, the lock component 200 and the door lock 22 can be unlocked so that the machine door 400 can be opened relative to the machine body 300.

[0054] The door lock device 100 and the electrical appliance provided by the present invention have the following advantages: the outer convex surface of the actuating cam 12 can push the sliding member 21, so that the sliding member 21 actuates the door lock member 22 to move to the unlocked position, and the reset member 3 can prompt the door lock member 22 to return to the locked position, so that the door lock member 22 can be driven to the unlocked position to achieve unlocking between it and the lock component 200, and also achieve automatic reset, ensuring that the machine door 400 will not be opened at will and can be manually reset after being opened, thereby improving the reliability of the door lock device 100; at the same time, since the outer convex surface is smoothly connected to the inner concave surface 123, and the inner concave surface 123 is always separated from the sliding member 21, the sliding member 21 always abuts against the outer convex surface during the reset process, so that the sliding member 21 is reset The door lock 22 is reset by the combined action of the elastic force of the reset member 3 and the thrust applied by the actuating cam 12. The reset speed is slower than the reset speed under the elastic force of the reset member 3 alone, avoiding the impact and noise caused by the rapid reset of the sliding member 21, and improving the service life of the sliding member 21; furthermore, since the concave curved surface 123 is always separated from the sliding member 21, and the concave curved surface 123 is concavely set, when the door lock 22 returns to the locked position, the sliding member 21 can be quickly separated from the concave curved surface 123, avoiding the problem of the sliding member 21 and the door lock 22 not being reset into place due to the sliding member 21 always abutting against the actuating cam 12, thereby improving the reliability of the door lock 22 resetting to the locked position, thereby improving the operational reliability and smoothness of the door lock device 100.

[0055] like Figure 3 and Figure 5 As shown, in this embodiment, the door lock 22 is rotatably mounted on the machine body 300 about a predetermined axis, so that the door lock 22 can be rotated between an unlocked position and a locked position. The door lock 22 has a lock slot 2221. When the door lock 22 is in the unlocked position, the notch of the lock slot 2221 faces forward, allowing the lock component 200 to move in and out of the lock slot 2221 in the front-to-back direction, thereby allowing the machine door 400 to be opened relative to the machine body 300. When the door lock 22 is in the locked position, the notch of the lock slot 2221 faces left and right, thereby restricting the lock component 200 from moving forward and out of the lock slot 2221.

[0056] Furthermore, a guide surface is formed on the front side surface of the door lock 22, which is located in front of the lock slot 2221 and extends forward from the notch of the lock slot 2221 in a direction away from the notch of the lock slot 2221. When the user closes the door and the door lock 22 is in the locked position, the lock component 200 first contacts the guide surface. During the process of the user closing the door, the lock component 200 pushes the guide surface from front to back, causing the door lock 22 to rotate in the direction toward the unlocked position, and then guides the lock component 200 into the lock slot 2221 of the lock hook 222, thereby realizing the user's manual door closing operation.

[0057] The door lock assembly 2 also includes a lock base 24, to which the door lock member 22 is rotatably mounted. The lock base 24 is mounted on the housing 300 to facilitate installation and removal of the door lock from the housing 300. In this embodiment, the door lock member 22 includes a vertical lock shaft 221 and a lock hook 222 fixedly disposed at the lower end of the lock shaft 221. The lock shaft 221 is rotatably mounted on the lock base 24, and the lock hook 222 has the aforementioned lock slot 2221 and guide surface. In other embodiments, the door lock member 22 may also be a sheet-like structure, with the rear end of the door lock member 22 rotatably mounted on the lock base 24 and the front end of the door lock member 22 having the aforementioned lock slot 2221 and guide surface.

[0058] It is worth noting that the specific structure of the door lock member 22 can be adaptively configured according to the type of appliance and the specific structure of the housing 300. This embodiment does not limit the specific structure of the door lock member 22. It is sufficient to ensure that the movement of the slider 21 along the rotation axis of the actuating cam 12 can directly or indirectly push the door lock member 22 to rotate between the unlocked position and the locked position. The specific structure of the lock hook 222 can be configured with reference to existing structures and will not be described in detail in this embodiment.

[0059] In this embodiment, the door lock assembly 2 further includes a connecting rod 23. The first end of the connecting rod 23 is connected to the slider 21, and the second end of the connecting rod 23 is hingedly connected to the door lock 22. The hinge axis between the connecting rod 23 and the door lock 22 is parallel to the rotation axis of the door lock 22 and is spaced apart. The sliding of the slider 21 actuates the connecting rod 23 to push the door lock 22 to rotate between the unlocked position and the locked position. By providing the connecting rod 23 and hingedly connecting its ends to the slider 21 and the door lock 22, respectively, the transmission reliability and smoothness between the slider 21 and the door lock 22 are ensured, thereby further ensuring the operational reliability of the door lock device 100. In other embodiments, the end of the slider 21 away from the actuating cam 12 can directly contact the door lock 22, so that the sliding of the slider 21 pushes the door lock 22 to rotate.

[0060] Furthermore, the door lock assembly 2 also includes a connecting member 25, which is fixedly connected to the lock shaft 221, and the connecting member 25 and the connecting rod 23 are hinged through a hinge shaft, and the lock shaft 221 and the hinge shaft are coaxial and spaced apart.

[0061] like Figure 1 and Figure 2As shown, in this embodiment, the lock component 200 is located in the middle of the door 400 in the left-right direction, the door lock component 22 is located in the middle of the body 300 in the left-right direction, and the driver 11 is located at one end of the door 400 in the left-right direction. The connecting rod 23 is arranged generally in the left-right direction, and the actuating cam 12 pushes the slider 21 to slide in the left-right direction. By arranging the door lock component 22 and the lock component 200 in the middle of the appliance in the left-right direction, the force applied to the door 400 when opening or closing is improved, thereby improving the reliability of door opening and closing. By arranging the driver 11 at one end of the body 300 in the left-right direction and the connecting rod 23 being arranged generally in the left-right direction, the space occupied by the door lock device 100 can be reduced.

[0062] In order to improve the installation convenience of the driving member 11 and the sliding member 21, in this embodiment, the door lock device 100 also includes a driving seat 4, the driving member 11 is installed on the driving seat 4, and the sliding member 21 is slidably installed on the driving seat 4. The driving seat 4 is detachably connected to the body 300, thereby facilitating the overall disassembly and assembly of the door lock device 100 on the body 300.

[0063] Furthermore, the drive base 4 has a mounting cavity 41, within which the actuating cam 12 is located. The driver 11 is a drive motor, and its motor housing is mounted on the outside of the drive base 4. The motor shaft 111 of the driver 11 extends into the mounting cavity 41 and aligns with the actuating cam 12. The slider 21 is at least partially slidably disposed within the mounting cavity 41. This arrangement helps reduce the structural dimensions of the drive base 4, and mounting the driver 11 on the outside of the drive base 4 facilitates heat dissipation during operation.

[0064] Specifically, the housing 300 further includes a front frame 303 positioned outside the front end of the inner container 301 and a top support plate 302 positioned above the inner container 301. The control panel 500 is mounted on the front frame 303. The door lock device 100 is mounted above the top support plate 302 and behind the control panel 500. The drive base 4 is fastened to the bracket of the control panel 500 and / or the top support plate 302. The mounting structure of the door lock device 100 on the housing 300 can be configured with reference to the prior art and is not the focus of the present invention and will not be described in detail here.

[0065] like Figures 6 to 9As shown, in this embodiment, the actuating cam 12 has an actuating end 1223 with the largest distance from the rotation axis, the convex curved surface includes a first curved surface segment 121 and a second curved surface segment 122 that are smoothly connected, and the concave curved surface 123, the second curved surface segment 122 and the first curved surface segment 121 are smoothly connected in sequence along the preset rotation direction; the distance between the first curved surface segment 121 and the rotation axis gradually decreases along the preset rotation direction, and the first curved surface segment 121 can at least partially push the sliding member 21 to move in the direction away from the rotation axis; the second curved surface segment 122 at least includes a return support segment 1221 located between the actuating end 1223 and the concave curved surface 123, and the distance between the return support segment 1221 and the rotation axis gradually increases along the preset rotation direction, and the return support segment 1221 can abut against the sliding member 21 when the sliding member 21 moves toward the rotation axis.

[0066] For the convenience of description, the portion of the first curved surface segment 121 that can push the sliding member 21 to move in a direction away from the rotation axis is called an actuating curved surface segment 1211. Figure 7 The first curved surface segment 121 is the AB segment, the actuating curved surface segment 1211 is the EB segment, the second curved surface segment 122 is the BC segment, and the concave curved surface segment 123 is the CD segment.

[0067] When the actuating cam 12 rotates until the actuating curved surface section 1211 abuts against the sliding member 21, the rotation of the actuating cam 12 can push the sliding member 21 to rotate in the direction away from the rotation axis of the actuating cam 12; since the distance between the return support section 1221 and the rotation axis gradually increases along the preset rotation direction, when the actuating cam 12 rotates along the preset rotation direction until the actuating end 1223 contacts the sliding member 21, the sliding member 21 has a maximum stroke H farthest from the rotation axis of the actuating cam 12, that is, at this time the door lock member 22 is in the unlocked state; when the actuating cam 12 continues to rotate in the preset rotation direction, since the distance between the return support section 1221 and the rotation axis of the actuating cam 12 gradually decreases, the contact point between the sliding member 21 and the return support section 1221 is further away from the actuating cam 12 The spacing between the rotation axes gradually decreases, and the sliding member 21 moves in the direction of the rotation axis of the actuating cam 12 under the action of the elastic restoring force of the reset member 3, and is always supported by the return support segment 1221 during the return process, so that the reset speed of the sliding member 21 is limited by the rotation speed of the actuating cam 12, and the problem of the sliding member 21 resetting too quickly due to the sudden separation of the sliding member 21 from the actuating cam 12 will not occur, reducing the collision between the sliding member 21 and the door lock member 22 due to resetting too quickly during the reset process, and improving the safety and reliability of the door lock assembly 2; when the actuating cam 12 rotates to the second curved surface segment 122 and separates from the sliding member 21, the sliding member 21 resets to the initial state, that is, the door lock member 22 resets to the locked position, and the rotation of the actuating cam 12 will not affect the sliding.

[0068] Furthermore, the curvature of the first curved segment 121 is smaller than the curvature of the second curved segment 122. This arrangement ensures that, when the rotational speed of the actuating cam 12 remains constant, the speed at which the first curved segment 121 pushes the sliding member 21 away from the rotation axis is slower than the speed at which the second curved segment 122 supports the sliding member 21 toward the rotation axis of the actuating cam 12. This results in a relatively faster return of the door lock member 22 from the unlocked position to the locked position, thereby improving the response speed of the door lock member 22.

[0069] Furthermore, the second curved segment 122 further includes a deceleration driving segment 1222 located between the first curved segment 121 and the actuating end 1223. Along the preset rotation direction, the distance between the deceleration driving segment 1222 and the rotation axis gradually decreases. Figure 7 The deceleration drive section 1222 is the BE section, and the return support section 1221 is the EC section. By providing the deceleration drive section 1222, and by having a curvature greater than that of the actuating curved surface section 1211, the actuating cam 12 pushes the sliding member 21 to move in a direction away from the rotation axis of the actuating cam 12 at an initial high speed, but slows down as the door lock member 22 approaches the unlocked position. This ensures a fast response time for unlocking and opening the door while slightly increasing the operating time of the door lock member 22 near the unlocked position. This provides the user with a certain amount of time to open the door after the door lock member 22 is unlocked, thereby improving the user experience of the door lock device 100.

[0070] Furthermore, the length of the actuating curved surface section 1211 is L1, the length of the deceleration driving section 1222 is L2, and 0.7<L1 / (L1+L2)<1, which is conducive to controlling the overall sliding speed of the sliding member 21 and facilitating the design of the overall shape of the actuating cam 12.

[0071] In a projection plane perpendicular to the rotation axis, the rotation center of the actuating cam 12 is O1, the projection of the actuating end 1223 in the projection plane is E, the center of the circle corresponding to the second curved segment 122 is O2, and point O2 is on the line connecting points O1 and E. Therefore, when the actuating end 1223 abuts the slider 21, the tangent line of the actuating cam 12 on the actuating end 1223 is perpendicular to the direction of the slider 21. As a result, the actuating end 1223 does not apply a harmful force component to the slider 21 at this time, reducing damage to the driver 11 caused by the reaction force exerted by the slider 21 on the actuating cam 12. Furthermore, this arrangement helps simplify the structural difficulty and structure of the actuating cam 12.

[0072] To control the force and sliding speed of the sliding member 21 during sliding, and to control the reverse force applied to the actuating cam 12, in this embodiment, when the deceleration drive section 1222 abuts the sliding member 21, a pressure angle β at the abutment point between the deceleration drive section 1222 and the sliding member 21 is β≤30°; and / or, when the first curved section 121 abuts the sliding member 21, a pressure angle β at the abutment point between the first curved section 121 and the sliding member 21 is β≤30°. This configuration ensures that when the actuating cam 12 pushes the sliding member 21 to slide in a direction away from the rotation axis of the actuating cam 12, the angle between the normal of the contact point between the actuating cam 12 and the sliding member 21 and the sliding direction of the sliding member 21 is less than or equal to 30°. This reduces the harmful component of the reverse force applied by the sliding member 21 to the driving member 11, avoids the problem of the driving member 11 being locked, and improves the operational safety and reliability of the actuating assembly 1.

[0073] In this embodiment, when the first curved segment 121 or the deceleration drive segment 1222 contacts the slider 21, the tangent direction of the actuating cam 12 at the contact point is perpendicular to the sliding direction of the slider 21, i.e., the transmission angle is zero. This improves the smoothness of the slider 21 during sliding, enhances the transmission effectiveness from the actuating cam 12 to the slider 21, and improves transmission efficiency. It also reduces friction between the actuating cam 12 and the slider 21, thereby increasing the service life of the actuating assembly 1 and the door lock assembly 2.

[0074] To further reduce friction between the slider 21 and the actuating cam 12, the first end of the slider 21 has an abutment portion 2111. The abutment portion 2111 is perpendicular to the sliding direction of the slider 21, and the actuating curved surface segment 1211 and the deceleration drive segment 1222 can abut against the abutment portion 2111. This arrangement facilitates setting the abutment position between the slider 21 and the actuating cam 12, thereby better ensuring that when the deceleration drive segment 1222 and the actuating curved surface segment 1211 contact the slider 21, the tangent line of the actuating cam 12 at the contact point is perpendicular to the sliding direction of the slider 21.

[0075] Furthermore, the first end of the abutment portion 2111 is smoothly connected to the first transition portion 2112. The arcuate opening of the first transition portion 2112 faces away from the actuating cam 12. When the door lock member 22 returns from the unlocked position to the locked position, the portion of the return support section 1221 adjacent to the concave curved surface 123 abuts against the first transition portion 2112. The provision of the first transition portion 2112 improves the separation of the slider 21 and the actuating cam 12 after the slider 21 is reset, prevents interference between the slider 21 and the abutment portion 2111, and improves the operational reliability of the slider 21 and the actuating assembly 1.

[0076] Specifically, in this embodiment, the sliding member 21 includes a sliding base plate 212 and a side panel 211 vertically arranged around the periphery of the sliding base plate 212, the side panel 211 includes the above-mentioned abutment portion 2111 and two side panel portions connected to the opposite ends of the abutment portion 2111, the abutment portion 2111 and one of the side panel portions are connected by a first transition portion 2112 with a rounded corner transition, and the abutment portion 2111 and the other side panel portion are connected by a second transition portion 2113 with a rounded corner transition.

[0077] In this embodiment, the outer contour surface of the actuating cam 12 also includes a base circular curved surface segment 124 connected between the concave curved surface 123 and the first curved surface segment 121. The center of the circle corresponding to the base circular curved surface segment 124 is located on the rotation axis of the actuating cam 12. The two ends of the base circular curved surface segment 124 are tangent to the concave curved surface 123 and the first curved surface segment 121 to better ensure the smoothness of the appearance of the entire actuating cam 12.

[0078] In this embodiment, the curvature of the concave curved surface 123 is less than that of the second curved surface segment 122, thereby facilitating the overall configuration of the actuating cam 12. The curvature of the concave curved surface 123 is greater than that of the first curved surface segment 121, so that the width of the actuating cam 12 gradually decreases from the position corresponding to the rotation axis to the driving end. This reduces the width of the actuating cam 12 near the actuating end 1223 to achieve a uniform curved surface transition, while also ensuring the overall structural strength and rigidity of the actuating cam 12 at its connection with the driver 11, thereby improving the reliability of the actuating assembly 1.

[0079] Furthermore, the concave curved surface 123 is located on one side of the plane passing through the rotation axis and the actuating end 1223 to avoid the concave curved surface 123 being too concave, which would affect the structural strength and rigidity of the entire actuating cam 12 and improve the reliability of the actuating cam 12.

[0080] That is, refer to Figure 8 and Figure 9 As shown: When the door lock 22 is in the locked position, the actuating cam 12 is separated from the sliding member 21 (refer to Figure 8 (a) in Figure 9 When the actuating cam 12 continues to rotate around the preset rotation direction for a time period t1, the actuating curved surface segment 1211 begins to abut against the abutting portion 2111 of the sliding member 21, so that the rotation of the actuating cam 12 pushes the sliding member 21 to move in a direction away from the rotation axis (refer to FIG. Figure 8 (b) in FIG), until the actuating cam 12 rotates for a time t2, at which point the intersection B of the first curved segment 121 and the second curved segment 122 (reference Figure 7) abuts against the sliding member 21; since the curvature of the second curved surface segment 122 is greater than the curvature of the first curved surface segment 121, the sliding member 21 moves at a faster speed in the direction away from the rotation axis of the actuating cam 12 until the actuating end 1223 abuts against the sliding member 21 (as shown in FIG. Figure 8 As shown in (c) and (d) in FIG), the sliding member 21 runs to the maximum stroke H, and the door lock member 22 rotates to the unlocked position; when the actuating cam 12 continues to rotate in the preset rotation direction, the door lock member 22 resets and abuts against the return support section 1221 (as shown in FIG). Figure 8 (e)); when the actuating cam 12 continues to rotate until the second curved segment 122 is separated from the sliding member 21, the sliding member 21 is reset (eg Figure 8 In (f)), the door lock member 22 returns to the locked position.

[0081] In order to improve the sliding reliability of the sliding member 21, one of the sliding member 21 and the driving seat 4 is provided with a guide protrusion 42, and the other is provided with a guide groove 213. The guide groove 213 extends along the sliding direction of the sliding member 21, and the guide protrusion 42 is slidably inserted in the guide groove 213 to realize the sliding guidance of the sliding member 21 on the driving seat 4.

[0082] To control the travel of the slider 21 and improve the reliability of door opening control, in this embodiment, the door lock device 100 further includes a detection member 5. The detection member 5 is used to detect the position of the actuating end 1223. The detection of the detection member 5 can thereby determine the start and stop timing of the driving member 11. The detection member 5 is in communication with the control panel 500.

[0083] In this embodiment, the detection member 5 has a triggered state triggered by the actuating end 1223 and a non-triggered state not triggered by the actuating cam 12 . When the detection member 5 is in the triggered state, the actuating cam 12 is separated from the sliding member 21 .

[0084] In this embodiment, the detection member 5 is a microswitch having a trigger portion. When the trigger portion abuts the actuating end 1223, the detection member 5 is in a triggered state; when the actuating cam 12 is separated from the trigger portion, the detection member 5 is in a non-triggered state. Contact between the actuating end 1223 and the trigger portion switches the detection member 5 from the non-triggered state to the triggered state, resulting in high detection accuracy. In other embodiments, the detection member 5 may be a non-contact sensor, such as a photoelectric sensor.

[0085] The position when the actuating end 1223 triggers the detection member 5 is defined as the first position, the position when the actuating end 1223 abuts the sliding rod is defined as the second position, and the rotation angle of the actuating cam 12 from the first position to the second position is A, A<2s×ω, ω is the rotation speed of the driving member 11.

[0086] In this embodiment, the detection member 5 is installed in the installation cavity 41 to protect the detection member 5. Furthermore, the detection member 5 is provided with a wiring terminal, and the drive seat 4 has a threading hole at the position corresponding to the wiring terminal for the connection wire of the wiring terminal to be led out for connection with the control panel 500.

[0087] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A door lock device, used to cooperate with a lock component (200), characterized in that: The door lock device comprises: An actuating assembly (1) comprises a driving member (11) and an actuating cam (12), wherein the actuating cam (12) is a crescent-shaped structure, and the driving member (11) drives the actuating cam (12) to rotate around a preset rotation direction, wherein in the preset rotation direction, the outer convex surface of the crescent-shaped structure is located in front of the inner concave surface (123) of the crescent-shaped structure; A door lock assembly (2) comprises a sliding member (21) and a door lock member (22) in transmission connection, wherein the convex curved surface can push the sliding member (21) to move in a direction away from the rotation axis of the actuating cam (12) when the actuating cam (12) rotates, so that the door lock member (22) moves to an unlocked position, and the concave curved surface (123) is always separated from the sliding member (21); A reset member (3) is used for applying a force to the sliding member (21) to move the sliding member toward the rotation axis so as to keep or restore the door lock member (22) to the locked position.

2. The door lock device according to claim 1, characterized in that: The actuating cam (12) has an actuating end (1223) with the largest distance from the rotation axis; the convex curved surface comprises a first curved surface segment (121) and a second curved surface segment (122) that are smoothly connected; and the concave curved surface (123), the second curved surface segment (122), and the first curved surface segment (121) are smoothly connected in sequence along the preset rotation direction; The distance between the first curved surface segment (121) and the rotation axis gradually decreases along the preset rotation direction, and the first curved surface segment (121) is at least partially capable of pushing the sliding member (21) to move in a direction away from the rotation axis; The second curved surface segment (122) at least comprises a return support segment (1221) located between the actuating end (1223) and the concave curved surface (123); the distance between the return support segment (1221) and the rotation axis gradually increases along the preset rotation direction; and the return support segment (1221) is capable of abutting against the sliding member (21) when the sliding member (21) moves toward the rotation axis. The curvature of the first curved surface segment (121) is smaller than the curvature of the second curved surface segment (122).

3. The door lock device according to claim 2, characterized in that: The second curved surface segment (122) further includes a deceleration drive segment (1222) located between the first curved surface segment (121) and the actuating end (1223), and along the preset rotation direction, the distance between the deceleration drive segment (1222) and the rotation axis gradually decreases.

4. The door lock device according to claim 3, characterized in that: In a projection plane perpendicular to the rotation axis, the rotation center of the actuating cam (12) is O1, the projection of the actuating end (1223) in the projection plane is E, the center of the circle corresponding to the second curved surface segment (122) is O2, and point O2 is on the line connecting point O1 and point E; And / or, the portion of the first curved surface segment (121) that pushes the sliding member (21) to move in a direction away from the rotation axis is an actuating curved surface segment (1211), and along the preset rotation direction, the length of the actuating curved surface segment (1211) is L1, the length of the deceleration drive segment (1222) is L2, and 0.7<L1 / (L1+L2)<1.

5. The door lock device according to claim 3, characterized in that: When the deceleration drive section (1222) abuts against the sliding member (21), a pressure angle at the abutment point between the deceleration drive section (1222) and the sliding member (21) is β, and β≤30°.

6. The door lock device according to claim 2, characterized in that: The curvature of the concave curved surface (123) is smaller than the curvature of the second curved surface segment (122); and / or, the curvature of the concave curved surface (123) is greater than the curvature of the first curved surface segment (121); And / or, the concave curved surfaces (123) are all located on one side of a plane passing through the rotation axis and the actuating end (1223).

7. The door lock device according to any one of claims 2 to 6, characterized in that: The sliding member (21) has an abutting portion (2111), the abutting portion (2111) extends in a direction perpendicular to the sliding direction of the sliding member (21), and the first curved surface segment (121) abuts against the abutting portion (2111).

8. The door lock device according to claim 7, characterized in that: The first end of the abutting portion (2111) is smoothly connected to a first arc-shaped transition portion (2112), and the arc-shaped opening of the first transition portion (2112) faces away from the actuating cam (12). When the door lock (22) returns from the unlocking position to the locking position, the portion of the return support section (1221) close to the concave curved surface (123) abuts against the first transition portion (2112).

9. The door lock device according to any one of claims 1 to 6, characterized in that: The door lock assembly (2) further comprises a connecting rod (23) and a lock seat (24), the door lock member (22) is rotatably mounted on the lock seat (24), one end of the connecting rod (23) is hinged to the sliding member (21), the second end of the connecting rod (23) is hinged to the door lock member (22), and the hinge axis of the connecting rod (23) and the door lock member (22) is parallel to the rotation axis of the door lock member (22) and is spaced apart, and the sliding of the sliding member (21) actuates the connecting rod (23) to push the door lock member (22) to rotate and switch between the unlocking position and the locking position.

10. An electrical appliance comprising a body (300) and a door (400) movably mounted on the body (300), wherein the door (400) is provided with a lock component (200), characterized in that: The invention further comprises a door lock device according to any one of claims 1 to 9, wherein the door lock device is mounted on the machine body (300), the door lock member (22) can cooperate with the lock member (200) in the locked position to lock the machine door (400) relative to the machine body (300), and the door lock member (22) can disengage from the lock member (200) in the unlocked position to enable the machine door (400) to be opened relative to the machine body (300).

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