Knob mechanism and electronic equipment

Abstract

The utility model discloses a knob mechanism and electronic equipment, and belongs to the technical field of electronics. The knob mechanism comprises a fixed shell assembly, a trigger assembly and a knob, a circuit board is arranged in the fixed shell assembly, and a switch is arranged on the circuit board; the trigger assembly is partially located in the fixed shell assembly, the trigger assembly can move between an initial position and a trigger position, and when the trigger assembly is located at the trigger position, the trigger assembly triggers the switch; the knob is arranged outside at least part of the trigger assembly in a surrounding mode, the knob is rotatably connected with the trigger assembly, the knob and the fixing shell assembly are in sliding fit in the axial direction of the knob, and the knob and the fixing shell assembly can rotate relatively around the axis of the knob. In the scheme, under the condition that the trigger assembly moves to the trigger position and triggers the switch, when the knob is rotated, the trigger assembly does not rotate along with the knob, at the moment, the switch is not subjected to tangential force of the trigger assembly, the switch is not prone to being abraded, and then the service life of the switch can be effectively prolonged.

Description

Knob mechanism and electronic equipment Technical Field

[0001] This application belongs to the field of electronic technology, specifically relating to a knob mechanism and an electronic device. Background Technology

[0002] In related technologies, rotating or pressing a knob on a rotating mechanism can cause the circuit board of the mechanism to send different signals to an electronic device, enabling the electronic device to perform operations such as function switching or state adjustment. Specifically, pressing a knob can trigger a switch on the circuit board, causing the circuit board to send a signal to the electronic device, thereby causing the electronic device to perform the corresponding operation.

[0003] However, when the knob is pressed, rotating the knob will cause the pressed switch on the circuit board to be subjected to the tangential force of the knob, which can easily cause the switch to be worn by the knob, thereby shortening the service life of the switch. Summary of the Invention

[0004] The purpose of this application is to provide a knob mechanism and electronic device that can solve the problem in the related art where the switch of the knob mechanism is easily worn by the knob.

[0005] In a first aspect, embodiments of this application provide a knob mechanism, the knob mechanism comprising:

[0006] A fixed housing assembly, wherein a circuit board is disposed inside the fixed housing assembly, and a switch is disposed on the circuit board;

[0007] A triggering component, a portion of which is located within the fixed housing assembly, is movable between an initial position and a triggering position, wherein the triggering component triggers the switch when it is in the triggering position;

[0008] A knob is disposed around at least a portion of the trigger assembly, the knob is rotatably connected to the trigger assembly, the knob and the retaining housing assembly are slidably engaged in the axial direction of the knob, and the knob and the retaining housing assembly are rotatable relative to each other about the axis of the knob.

[0009] Secondly, embodiments of this application also provide an electronic device, which includes a device body and the aforementioned knob mechanism, wherein the knob mechanism is disposed on the device body.

[0010] In this embodiment of the application, when the trigger component moves to the trigger position and triggers the switch, since the knob and the trigger component are rotatably connected, the trigger component will not rotate with the knob when the knob is rotated. Therefore, the switch will not be subjected to the tangential force of the trigger component, making the switch less prone to wear and thus effectively extending the service life of the switch. Attached Figure Description

[0011] Figure 1 is one of the cross-sectional views of the knob mechanism disclosed in the embodiments of this application (when the trigger component is in the initial position).

[0012] Figure 2 is a second cross-sectional view of the knob mechanism disclosed in the embodiment of this application (when the trigger component is in the trigger position).

[0013] Figure 3 is a perspective view of the knob mechanism disclosed in the embodiment of this application;

[0014] Figure 4 is an exploded view of the knob mechanism disclosed in the embodiment of this application;

[0015] Figure 5 is one of the positional relationships of the knob, reset elastic element, first bracket and second bracket disclosed in the embodiments of this application from an explosion perspective;

[0016] Figure 6 is the second of the positional relationships of the knob, reset elastic element, first bracket and second bracket disclosed in the embodiments of this application from an explosion perspective.

[0017] Figure 7 is a perspective view of the first bracket disclosed in an embodiment of this application;

[0018] Figure 8 is a perspective view of the knob disclosed in the embodiment of this application;

[0019] Figure 9 is one of the positional relationships between the knob and the first bracket disclosed in the embodiments of this application from a cross-sectional perspective;

[0020] Figure 10 is a second diagram showing the positional relationship between the knob and the first bracket in a cross-sectional view according to an embodiment of this application.

[0021] Figure 11 is a diagram showing the positional relationship between the circuit board and the fixed bracket disclosed in an embodiment of this application;

[0022] Figure 12 is a perspective view of the fixed bracket disclosed in the embodiment of this application;

[0023] Figure 13 is a cross-sectional view showing the positional relationship of a portion of the knob, a portion of the first bracket, and a portion of the second bracket disclosed in the embodiments of this application.

[0024] Explanation of reference numerals in the attached figures:

[0025] 100 - Fixed shell assembly; 110 - Middle frame; 120 - Bottom shell; 130 - First connecting part;

[0026] 200 - Trigger component; 210 - Display screen; 220 - Mounting bracket; 221 - Second connecting part;

[0027] 2211 - Fifth limiting part; 222 - First part; 223 - Second part; 224 - Trigger rib;

[0028] 225 - Positioning post; 2251 - First positioning post; 2252 - Second positioning post; 300 - Circuit board;

[0029] 310 - Switch; 320 - Socket; 330 - Positioning hole; 331 - First positioning hole; 332 - Second positioning hole;

[0030] 400 - Knob; 410 - First annular portion; 420 - Second annular portion; 430 - Annular groove; 401 - Slide rail;

[0031] 402 - Abutting part; 403 - Second snap-fit ​​part; 404 - Groove; 405 - Third limiting part; 406 - Bearing groove;

[0032] 500 - Reset elastic element; 600 - First bracket; 610 - Connecting ring; 620 - Limiting connection part;

[0033] 630 - Support part; 640 - Mounting cavity; 601 - Limiting groove; 602 - Slide groove; 603 - Second limiting part;

[0034] 604 - First limiting part; 605 - First limiting protrusion; 606 - Second limiting protrusion; 700 - First bearing;

[0035] 800 - Second bracket; 810 - Bearing connection part; 820 - First snap-fit ​​part; 830 - Fourth limiting part;

[0036] 900 - Second bearing; 1000 - Connecting wire. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0038] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0039] The knob mechanism and electronic device provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0040] Referring to Figures 1-13, an embodiment of this application provides a knob mechanism that may include a fixed housing assembly 100, a trigger assembly 200, and a knob 400.

[0041] The fixed housing assembly 100 may contain a circuit board 300, on which a switch 310 is provided. A portion of the trigger assembly 200 may be located within the fixed housing assembly 100. The trigger assembly 200 may move between an initial position and a trigger position. When the trigger assembly 200 is in the trigger position, the trigger assembly 200 triggers the switch 310, causing the circuit board 300 to send a signal to the electronic device, thereby causing the electronic device to perform a corresponding operation.

[0042] The knob 400 may be disposed around at least a portion of the trigger assembly 200, the knob 400 is rotatably connected to the trigger assembly 200, the knob 400 and the fixed housing assembly 100 may slide in the axial direction of the knob 400, and the knob 400 and the fixed housing assembly 100 may rotate relative to each other about the axis of the knob 400.

[0043] With this configuration, when the trigger component 200 moves to the trigger position and triggers the switch 310, since the knob 400 is rotatably connected to the trigger component 200, the trigger component 200 will not rotate with the knob 400 when the knob 400 is rotated. Therefore, the switch 310 will not be subjected to the tangential force of the trigger component 200, making the switch 310 less prone to wear and thus effectively extending the service life of the switch 310.

[0044] In an optional embodiment of this application, as shown in FIG1, the knob mechanism may further include a first bracket 600, which is rotatably connected to the fixed housing assembly 100. The knob 400 and the first bracket 600 can slide in axial direction of the knob 400. In this embodiment, the first bracket 600 can serve as an intermediate connecting part, facilitating the sliding engagement between the knob 400 and the fixed housing assembly 100, and improving the stability of the knob 400, reducing its shaking. Furthermore, during installation, the first bracket 600 is first installed onto the fixed housing assembly 100, and then the knob 400 is assembled with the first bracket 600. This installation method reduces the installation difficulty. Simultaneously, since the first bracket 600 is rotatably connected to the fixed housing assembly 100, the first bracket 600 will not obstruct the rotation of the knob 400 when it rotates.

[0045] In other embodiments, the knob mechanism may also exclude the first support 600. For example, a gap may be left between the knob 400 and the fixed housing assembly 100 to allow the knob 400 to rotate and slide axially relative to the fixed housing assembly 100.

[0046] In an optional embodiment of this application, as shown in FIG1, the knob 400 may be provided with an annular groove 430, the axis of the annular groove 430 coinciding with the axis of the knob 400. Optionally, the knob 400 may include a first annular portion 410, a second annular portion 420, and an annular connecting portion. The first annular portion 410 is connected to the inner wall of the annular connecting portion, the second annular portion 420 is connected to the outer wall of the annular connecting portion, and an annular groove 430 may be formed between the first annular portion 410, the annular connecting portion, and the second annular portion 420.

[0047] The fixed housing assembly 100 may include a first connecting portion 130. Both a portion of the first connecting portion 130 and a portion of the first bracket 600 can be located within the annular groove 430. The first bracket 600 and the first connecting portion 130 are rotatably connected via a first bearing 700. Furthermore, the first bracket 600 and the groove wall of the annular groove 430 are in axial engagement with the knob 400. In this embodiment, both the first connecting portion 130 and a portion of the first bracket 600 are located within the annular groove 430, making the entire structure more compact, effectively utilizing the space of the knob 400, reducing the volume of the knob mechanism, and preventing the first bracket 600 and the first connecting portion 130 from being exposed, thereby improving the aesthetic appearance and overall texture of the knob mechanism. In this embodiment, the first bracket 600 can be connected to the inner ring of the first bearing 700, and the first connecting part 130 can be connected to the outer ring of the first bearing 700. In order to prevent the first connecting part 130 and the outer ring of the first bearing 700 from moving relative to each other in the axial direction of the knob 400, a limiting protrusion can be provided on the first connecting part 130. In the axial direction of the knob 400, the limiting protrusion and the outer ring of the first bearing 700 are limited and matched.

[0048] In other embodiments, the knob 400 may not have the annular groove 430, the first bracket 600 may be sleeved on the outside of the knob 400, and the first bracket 600 may slide in cooperation with the outer wall of the knob 400.

[0049] Optionally, as shown in Figure 4, the fixed housing assembly 100 may include at least two first connecting portions 130, each of which may be an arc-shaped structure. The first connecting portions 130 are spaced apart circumferentially along the first bracket 600, and each first connecting portion 130 can be connected to the outer ring of the first bearing 700. This arrangement helps to reduce the weight of the knob mechanism. Alternatively, the first connecting portion 130 may also be an annular structure, connected to the outer ring of the first bearing 700.

[0050] In an optional embodiment of this application, the knob mechanism may further include a reset elastic element 500. The reset elastic element 500 may be located within the annular groove 430. A first end of the reset elastic element 500 is connected to the first bracket 600, and a second end of the reset elastic element 500 is connected to the knob 400. Specifically, the second end of the reset elastic element 500 may be connected to the annular connecting portion described above. Furthermore, the reset elastic element 500 is used to drive the knob 400 to move, thereby causing the trigger component 200 to return to its initial position, so that the trigger component 200 can trigger the switch 310 again. In this embodiment, the reset elastic element 500 is disposed within the annular groove 430, which can make full use of the internal space of the annular groove 430, making the structure of the entire knob mechanism more compact and conducive to the miniaturization and integration of the knob mechanism. Furthermore, by placing the reset elastic element 500 on the first bracket 600, which can rotate relative to the fixed housing assembly 100, on the one hand, when the trigger assembly 200 moves to the trigger position and triggers the switch 310, that is, when the reset elastic element 500 is in a deformed state, the first bracket 600 and the reset elastic element 500 can rotate synchronously with the knob 400, and the reset elastic element 500 will not affect the rotation of the knob 400. On the other hand, the reset elastic element 500 is not easily deformed except by the axial force of the knob 400, thereby extending the service life of the reset elastic element 500.

[0051] In this embodiment, the reset elastic element 500 can be a spring.

[0052] In other embodiments, the reset elastic element 500 may not be located within the annular groove 430; instead, the reset elastic element 500 may be disposed between the trigger assembly 200 and the fixed housing assembly 100.

[0053] Optionally, as shown in Figures 1 and 2, the knob mechanism may include at least two reset elastic elements 500. Each reset elastic element 500 may be evenly distributed within the annular groove 430, and the first end of each reset elastic element 500 may be connected to the first bracket 600, while the second end of each reset elastic element 500 may be connected to the knob 400. This arrangement ensures that all reset elastic elements 500 act simultaneously, guaranteeing a balanced force on the knob 400 and preventing deflection due to unbalanced forces.

[0054] In an optional embodiment, as shown in Figures 4 and 5, a limiting groove 601 may be provided on the first bracket 600. A portion of the reset elastic element 500 may be located within the limiting groove 601, and the first end of the reset elastic element 500 is connected to the bottom wall of the limiting groove 601. In this embodiment, the limiting groove 601 can provide precise positioning for the reset elastic element 500, ensuring that the installation position of the reset elastic element 500 is accurate. Furthermore, the limiting groove 601 can limit the reset elastic element 500, ensuring that the reset elastic element 500 can only undergo elastic deformation along the axial direction of the limiting groove 601. This prevents the reset elastic element 500 from experiencing abnormal conditions such as displacement or twisting during operation, which could affect the subsequent pressing or reset effect.

[0055] Of course, the limiting groove 601 may not be provided on the first bracket 600, and the first end of the reset elastic member 500 may be connected to the end face of the first bracket 600 away from the fixed shell assembly 100.

[0056] In an optional embodiment, a groove 602 may be provided on one of the groove walls of the first bracket 600 and the annular groove 430, and a slide rail 401 may be provided on the other. The slide rail 401 is located in the groove 602 and slides in axial direction with the groove 602. Furthermore, the slide rail 401 and the groove wall of the groove 602 are in upper circumferential engagement with the knob 400. This configuration, through the sliding engagement of the slide rail 401 and the slide groove 602, provides precise guidance for the axial movement of the knob 400, making the axial sliding of the knob 400 more stable and smooth, less prone to shaking or deviation, and ensuring the stability and reliability of the knob 400 when performing axial operation. Furthermore, the upper limit engagement between the slide rail 401 and the groove wall of the slide groove 602 in the axial direction of the knob 400 restricts the relative rotation of the first support 600 and the knob 400 in the circumferential direction, ensuring that the first support 600 and the knob 400 maintain a relatively fixed circumferential positional relationship during the rotation of the knob 400. In this embodiment, as shown in Figures 5 and 6, the first support 600 may be provided with a slide groove 602, and the slide rail 401 may be provided on the groove wall of the annular groove 430.

[0057] Of course, the slide groove 602 and slide rail 401 may not be provided on the groove walls of the first support 600 and the annular groove 430.

[0058] Optionally, at least two sliding grooves 602 can be provided on one of the groove walls of the first support 600 and the annular groove 430, and at least two sliding rails 401 can be provided on the other. Each sliding rail 401 is located in a corresponding groove 602, and each sliding rail 401 and the groove wall of the corresponding sliding groove 602 are in upper circumferential engagement with the knob 400. This arrangement allows the force on the knob 400 during rotation to be evenly transmitted and distributed to the first support 600 through these sliding rails 401 and sliding grooves 602, thereby ensuring the force balance between the knob 400 and the first support 600.

[0059] In an optional embodiment, as shown in FIG1, a first limiting part 604 may be provided at the end of the first bracket 600 near the switch 310. In the direction from the trigger component 200 to the switch 310, the knob 400 can be limited and engaged with the first limiting part 604. In this embodiment, the first limiting part 604 can limit the maximum travel of the knob 400. When an axial pressing force is applied to the knob 400, the knob 400 moves towards the switch 310 to trigger the switch 310. When the knob 400 contacts the first limiting part 604, the first limiting part 604 limits the knob 400 to prevent the knob 400 from continuing to move axially under the action of external force, thereby causing the switch 310 to be over-pressurized.

[0060] Of course, the first limiting part 604 may not be provided at the end of the first bracket 600 near the switch 310.

[0061] Optionally, the first limiting part 604 can be a ring structure, and the knob 400 can be limited and engaged with the first limiting part 604 when rotated to any angle.

[0062] In an optional embodiment, as shown in Figures 1, 9, and 10, the first bracket 600 may be provided with a second limiting part 603, and the knob 400 may be provided with a third limiting part 405. In the direction from the switch 310 to the trigger component 200, the third limiting part 405 may engage with the second limiting part 603 for limiting. This configuration, through the limiting engagement of the third limiting part 405 and the second limiting part 603, prevents the knob 400 from moving too far away from the switch 310 under the elastic force of the reset elastic member 500, thereby preventing the knob 400 from separating from the first bracket 600.

[0063] In other embodiments, the first bracket 600 may not have the second limiting part 603, and the knob 400 may not have the third limiting part 405.

[0064] Optionally, at least one of the second limiting part 603 and the third limiting part 405 can be a ring structure. This configuration ensures that the second limiting part 603 and the third limiting part 405 are engaged in a limiting fit when the knob 400 is rotated to any angle.

[0065] Alternatively, the second limiting part 603 can be a ring structure, and the knob 400 is provided with at least two third limiting parts 405. Each third limiting part 405 is evenly distributed along the circumference of the knob 400, and each third limiting part 405 is limited and cooperates with the second limiting part 603. Or, the third limiting part 405 is a ring structure, and the first bracket 600 is provided with at least two second limiting parts 603. Each second limiting part 603 is limited and cooperates with the third limiting part 405. This arrangement can reduce the weight of the knob mechanism while ensuring the force balance between the knob 400 and the first bracket 600.

[0066] In some embodiments, as shown in FIG1, the first bracket 600 may include a connecting ring 610, a limiting connecting portion 620, and a supporting portion 630. The limiting connecting portion 620 can be connected to the connecting ring 610 through the supporting portion 630. The connecting ring 610 can be sleeved on the outside of the first annular portion 410 of the knob 400, and the first limiting portion 604 mentioned above can be disposed at one end of the connecting ring 610 near the switch 310. A mounting cavity 640 can be formed between the connecting ring 610, the supporting portion 630, and the limiting connecting portion 620. The first connecting portion 130 and the first bearing 700 can both be located in the mounting cavity 640, and the connecting ring 610 can be connected to the inner ring of the first bearing 700 to realize the rotatable connection between the first bracket 600 and the first connecting portion 130.

[0067] Optionally, as shown in Figure 7, the connecting ring 610 is provided with a first limiting protrusion 605 and a second limiting protrusion 606. The inner ring of the first bearing 700 is located between the first limiting protrusion 605 and the second limiting protrusion 606. In the axial direction of the knob 400, both the first limiting protrusion 605 and the second limiting protrusion 606 can engage with the inner ring of the first bearing 700 for limiting, thus preventing axial movement between the first bearing 700 and the first bracket 600. Further optionally, the first limiting protrusion 605 and the second limiting protrusion 606 can be offset circumferentially in the connecting ring 610. This arrangement facilitates the assembly and disassembly of the first bearing 700. For example, the connecting ring 610 may be provided with a plurality of first limiting protrusions 605 and a plurality of second limiting protrusions 606. The plurality of first limiting protrusions 605 may be distributed at intervals along the circumference of the connecting ring 610, and the plurality of second limiting protrusions 606 may be distributed at intervals along the circumference of the connecting ring 610. In this way, the limiting effect on the inner ring of the first bearing 700 can be improved, thereby improving the connection stability between the inner ring of the first bearing 700 and the connecting ring 610.

[0068] The limiting connection portion 620 can be located between the first connection portion 130 and the second annular portion 420 of the knob 400, and the second limiting portion 603 can be provided on the limiting connection portion 620, and the third limiting portion 405 can be provided on the second annular portion 420 of the knob 400. Here, the limiting groove 601 mentioned above can be provided on the support portion 630.

[0069] Optionally, as shown in Figures 9 and 10, a groove 404 may be provided on the inner wall of the second annular portion 420 of the knob 400. The groove 404 may be an annular groove. The second limiting portion 603 may be located in the groove 404, and the second limiting portion 603 and the groove 404 may slide relative to each other in the axial direction of the knob 400. Here, the third limiting portion 405 may be the groove wall of the groove 404 near the switch 310.

[0070] Alternatively, the second limiting part 603 and the groove 404 can be positioned opposite to the groove wall of the switch 310 in the axial direction of the knob 400. This arrangement can further limit the maximum travel of the knob 400.

[0071] In an optional embodiment of this application, as shown in Figures 1 and 2, the knob mechanism may further include a second bracket 800. The second bracket 800 and the trigger component 200 are rotatably connected via a second bearing 900. The second bracket 800 can be connected to the knob 400, and the second bracket 800 and the knob 400 are mutually positioned along the axial direction of the knob 400. In this embodiment, the second bracket 800 can serve as an intermediate transition structure to adapt to the structures of the knob 400 and the trigger component 200, and can provide more space for installation operations. For example, when installing the second bearing 900, the operator has more space to operate, making it easier to place the second bearing 900 between the second bracket 800 and the trigger component 200, and to connect the second bracket 800 to the knob 400, thereby improving the convenience and accuracy of installation and effectively reducing the installation difficulty. Furthermore, the axial positioning of the second bracket 800 and the knob 400 ensures that the knob 400 and the trigger assembly 200 are relatively fixed in the axial direction, allowing them to move synchronously. Additionally, the second bracket 800 is rotatably connected to the trigger assembly 200 via the second bearing 900, enabling the second bracket 800 to rotate smoothly relative to the trigger assembly 200, thereby allowing the knob 400 to rotate smoothly and providing the user with a smooth tactile feedback.

[0072] In other embodiments, the knob mechanism may also exclude the second bracket 800. For example, the knob 400 and the trigger assembly 200 may be directly rotatably connected via the second bearing 900.

[0073] In an optional embodiment, as shown in Figures 5, 6, and 13, the second bracket 800 may include a bearing connection portion 810 and a first latching portion 820 connected to the bearing connection portion 810. The knob 400 may be provided with an abutment portion 402 and a second latching portion 403. In the direction from the trigger component 200 to the switch 310, the abutment portion 402 is in a limiting engagement with the bearing connection portion 810, and the first latching portion 820 is in a limiting engagement with the second latching portion 403. This configuration enables the connection between the second bracket 800 and the knob 400. Furthermore, through the limiting engagement of the abutment portion 402 with the bearing connection portion 810 and the limiting engagement of the first latching portion 820 with the second latching portion 403, the knob 400 and the second bracket 800 are doubly constrained in the axial direction of the knob 400, effectively reducing the risk of separation between the knob 400 and the second bracket 800, thereby improving the connection stability between the second bracket 800 and the knob 400. Furthermore, during installation, the limiting engagement between the abutment part 402 and the bearing connection part 810, and between the first snap-fit ​​part 820 and the second snap-fit ​​part 403, facilitates the quick and accurate assembly of the knob 400 and the second bracket 800 without the need for complex installation tools and procedures, thus improving installation efficiency. In addition, when it is necessary to repair or replace the knob 400 or the second bracket 800, it is also convenient to remove the knob 400 from the second bracket 800.

[0074] In other embodiments, the second bracket 800 may not include the first snap-fit ​​portion 820, and the knob 400 may not have the abutment portion 402 and the second snap-fit ​​portion 403. For example, the second bracket 800 and the knob 400 may be connected by fasteners such as screws.

[0075] Optionally, the second bracket 800 may include at least two first latching portions 820, each first latching portion 820 may be distributed circumferentially along the bearing connection portion 810, and the knob 400 may be provided with at least two second latching portions 403, each second latching portion 403 may be distributed circumferentially along the knob 400, each first latching portion 820 and each second latching portion 403 correspond one-to-one, and in the direction from the trigger component 200 to the switch 310, each first latching portion 820 and the corresponding second latching portion 403 are mutually limited and engaged. This configuration allows for at least two positioning points to be formed around the knob 400, thereby improving the connection stability between the knob 400 and the second bracket 800. When the knob 400 is subjected to torque, the first locking parts 820 and the second locking parts 403 work together to better resist torsional forces, preventing relative rotation or misalignment between the knob 400 and the second bracket 800 during rotation. Simultaneously, the uniform distribution of the first locking parts 820 and the second locking parts 403 along the circumference of the knob 400 ensures that the force between the knob 400 and the second bracket 800 is evenly distributed across the entire circumference during connection, thus preventing excessive local stress on the knob 400 or the second bracket 800.

[0076] Optionally, the abutment portion 402 can be an arc-shaped structure. The knob 400 can be provided with at least two abutment portions 402, which can be evenly distributed around the circumference of the knob 400. Each abutment portion 402 can be matched with the bearing connection portion 810 for limiting. This arrangement can improve the connection stability between the knob 400 and the second bracket 800 while reducing the weight of the knob mechanism. Of course, the abutment portion 402 can also be an annular structure. This arrangement can increase the contact area between the abutment portion 402 and the bearing connection portion 810, thereby improving the limiting effect between the abutment portion 402 and the bearing connection portion 810. Furthermore, the annular abutment portion 402 can evenly transmit the force on the knob 400 to the bearing connection portion 810, preventing excessive local stress on the knob 400 or the bearing connection portion 810, thus helping to reduce wear between components and extend the service life of the knob 400 and the second bracket 800. Meanwhile, since the annular structure is axisymmetric, the abutment portion 402 can provide a relatively consistent limiting effect on the second bracket 800 in all directions. Thus, regardless of whether the knob 400 is subjected to axial force, radial force or torque, the annular abutment portion 402 can effectively cooperate with the bearing connection portion 810 to fix the knob 400 and the second bracket 800 relatively, thereby effectively improving the connection strength between the knob 400 and the second bracket 800.

[0077] In an optional embodiment, as shown in FIG5, in order to prevent the bearing connection 810 and the second bearing 900 from moving relative to each other in the axial direction of the knob 400, a fourth limiting part 830 may be provided on the bearing connection 810, and the fourth limiting part 830 and the outer ring of the second bearing 900 may be engaged in a limiting fit in the axial direction of the knob 400.

[0078] In an optional embodiment of this application, at least one positioning hole 330 may be provided on one of the circuit board 300 and the trigger component 200, and at least one positioning post 225 may be provided on the other. The positioning post 225 and the positioning hole 330 can be slidably engaged, and the positioning post 225 and the positioning hole 330 are radially limited to each other in the knob 400. In this embodiment, the radial limited engagement of the positioning post 225 and the positioning hole 330 on the knob 400 can prevent relative displacement or deflection between the circuit board 300 and the trigger component 200 in the radial direction, ensuring the stability of the connection between the trigger component 200 and the circuit board 300, and avoiding circuit failure or triggering abnormality caused by radial displacement or deflection between the two.

[0079] In other embodiments, the positioning hole 330 and the positioning post 225 may not be provided on the circuit board 300 and the trigger component 200.

[0080] In an optional embodiment, at least two positioning holes 330 may be provided on one of the circuit board 300 and the trigger assembly 200, and at least two positioning posts 225 may be provided on the other. The at least two positioning holes 330 may include a first positioning hole 331 and a second positioning hole 332, and the at least two positioning posts 225 may include a first positioning post 2251 and a second positioning post 2252. The first positioning post 2251 is slidably engaged with the first positioning hole 331, and the first positioning post 2251 and the first positioning hole 331 are engaged at the upper radial limit of the knob 400. The second positioning post 2252 is slidably engaged with the second positioning hole 332, and the second positioning post 2252 and the second positioning hole 332 are engaged at the upper radial limit of the knob 400. In this embodiment, by having at least two positioning posts 225 respectively engage with corresponding positioning holes 330, the circuit board 300 and the trigger component 200 can be positioned at at least two different locations. Compared to using a single positioning post 225, this forms a more stable positioning structure, effectively restricting multiple degrees of freedom of the trigger component 200 in the plane and better preventing displacement of the circuit board 300 and the trigger component 200 in directions other than the axial direction. Of course, one of the circuit board 300 and the trigger component 200 can also have only one positioning hole 330, and the other can have only one positioning post 225. In this embodiment, the positioning post 225 can be set on the trigger component 200, and the positioning hole 330 can be set on the circuit board 300. This arrangement facilitates processing.

[0081] Optionally, the cross-sectional areas of the first positioning hole 331 and the second positioning hole 332 in the radial direction of the knob 400 are different, and the cross-sectional areas of the first positioning post 2251 and the second positioning post 2252 in the radial direction of the knob 400 are also different. This configuration ensures that when installing the trigger assembly 200, installation can only be completed smoothly if the positioning post 225 is correctly matched with the corresponding size positioning hole 330. This prevents mistaken installation and reduces the likelihood of needing to disassemble and reassemble the knob mechanism, thus saving installation time and costs and effectively improving assembly efficiency. Specifically, both the first positioning hole 331 and the second positioning hole 332 can be circular holes, and both the first positioning post 2251 and the second positioning post 2252 can be cylinders. Furthermore, the diameters of the first positioning hole 331 and the second positioning hole 332 are different, and the diameters of the first positioning post 2251 and the second positioning post 2252 are different.

[0082] Of course, the cross-sectional areas of the first positioning hole 331 and the second positioning hole 332 in the radial direction of the knob 400 can also be the same.

[0083] In some optional embodiments, the cross-sections of the positioning hole 330 and the positioning post 225 can be rectangular or irregular, and the shapes of the positioning hole 330 and the positioning post 225 are adapted to each other. This arrangement can prevent the triggering component 200 from being installed backwards.

[0084] In an optional embodiment of this application, the knob mechanism further includes a reset elastic element 500. The reset elastic element 500 can be disposed within the fixed housing assembly 100. One end of the reset elastic element 500 can be connected to the trigger assembly 200, and the other end can be connected to the circuit board 300 or the fixed housing assembly 100. The reset elastic element 500 is used to drive the trigger assembly 200 back to its initial position. With this configuration, when the trigger assembly 200 is driven by an external force to undergo axial displacement, the reset elastic element 500 can automatically return the trigger assembly 200 to its initial position using its own elastic force when the force disappears. This allows the trigger assembly 200 to automatically return to its standard state after each operation, facilitating the user's next operation. Furthermore, the reset elastic element 500 is disposed within the fixed housing assembly 100 and connected to the trigger assembly 200. Compared to the method where the reset elastic element 500 is disposed within the annular groove 430 of the knob 400 and rotates synchronously with the knob 400, since the reset elastic element 500 does not rotate synchronously with the knob 400, the reset elastic element 500 is less susceptible to the effects of centrifugal force, vibration, and other factors generated by the rotation of the knob 400. The reset elastic element 500 is mainly subjected to the tension or pressure generated when the trigger assembly 200 moves, which makes it easier for the reset elastic element 500 to maintain a stable state during operation and helps to ensure the service life of the reset elastic element 500.

[0085] Of course, in other embodiments, the reset elastic element 500 can also be disposed in the annular groove 430 described above, and the first end of the reset elastic element 500 is connected to the first bracket 600, the second end of the reset elastic element 500 is connected to the knob 400, and the reset elastic element 500 can rotate synchronously with the knob 400.

[0086] In an optional embodiment, the reset elastic element 500 can be located inside the positioning hole 330 and sleeved outside the positioning post 225. With this configuration, the positioning post 225 can limit the reset elastic element 500, so that the reset elastic element 500 can only deform along the axial direction of the knob 400, thereby preventing the reset elastic element 500 from shifting.

[0087] In an optional embodiment of this application, the trigger component 200 may include a display screen 210 and a mounting bracket 220 for fixing the display screen 210. The display screen 210 may be electrically connected to the circuit board 300, and a portion of the mounting bracket 220 may be located within the mounting housing assembly 100. Furthermore, the mounting bracket 220 is rotatably connected to the knob 400. This configuration allows the knob mechanism to have a display function for displaying the operating status or parameters of the electronic device, facilitating user observation.

[0088] Since the display screen 210 is electrically connected to the circuit board 300, this configuration allows the knob mechanism to consist of only one circuit board 300, thereby saving material costs and production assembly costs, and facilitating the later disassembly and maintenance of the knob mechanism.

[0089] Of course, the trigger component 200 may also exclude the display screen 210.

[0090] In an optional embodiment, as shown in FIG1, the fixed bracket 220 may include a second connecting portion 221, which may be located on the side of the fixed bracket 220 near the switch 310, and may be connected to the inner ring of the second bearing 900. Optionally, in order to prevent relative movement between the second connecting portion 221 and the inner ring of the second bearing 900 in the axial direction of the knob 400, a fifth limiting portion 2211 may be provided on the second connecting portion 221, which engages with the inner ring of the second bearing 900 in the circumferential direction of the knob 400.

[0091] Optionally, as shown in Figure 2, the fixed bracket 220 may further include a first part 222 and a second part 223 coaxially connected to the first part 222. The side of the first part 222 facing away from the second part 223 may have a mounting groove, and a portion of the display screen 210 may be disposed within the mounting groove. A portion of the second part 223 may pass through the knob 400 and extend into the fixed housing assembly 100, as shown in Figure 12. A trigger rib 224 may be provided at the end of the second part 223 facing away from the first part 222, and the trigger rib 224 may be used to trigger the switch 310. A bearing groove 406 may be provided on the side of the knob 400 near the display screen 210. The first part 222 may be located within the bearing groove 406, and along the axial direction of the knob 400, the first part 222 and the knob 400 are mutually restrained. This further improves the connection stability between the trigger assembly 200 and the knob 400 along the axial direction of the knob 400. Here, the second connecting part 221 can be connected to the end of the second part 223 that is away from the first part 222.

[0092] In an optional embodiment, as shown in Figures 1 and 2, the display screen 210 can be electrically connected to the circuit board 300 via a connecting cable 1000. Specifically, one end of the connecting cable 1000 is fixedly connected to the display screen 210, and the other end of the connecting cable 1000 is provided with a plug-in. The circuit board 300 can be provided with a socket 320, and the plug-in can be inserted into the socket 320 and electrically connected to the socket 320 to realize the transmission of electrical signals. Here, the plug-in can be a gold finger. It should be noted that the gold finger can be composed of numerous golden conductive contacts. Because its surface is gold-plated and the conductive contacts are arranged like fingers, it is called a "gold finger". All data streams and electronic flows of the display screen 210 are exchanged with the circuit board 300 through the electrical contact between the gold finger and the slot. The gold finger is the input / output port of the display screen 210.

[0093] Optionally, the mounting bracket 220 may be provided with a wire passage, through which the connecting wire 1000 can pass and be electrically connected to the circuit board 300.

[0094] In an optional embodiment, as shown in Figures 1 and 2, the fixed shell assembly 100 includes a middle frame 110 and a bottom shell 120. The bottom shell 120 can be connected to the middle frame 110, and an accommodating space can be formed between the bottom shell 120 and the middle frame 110. The circuit board 300 can be disposed in the accommodating space, and the circuit board 300 can be connected to the bottom shell 120 by fasteners such as screws.

[0095] Here, the portion of the fixing bracket 220 and the portion of the knob 400 can extend into the receiving space. The first connecting portion 130 described above can be connected to the side of the middle frame 110 opposite to the bottom shell 120.

[0096] In this embodiment, when the knob 400 is rotated, the knob 400 drives the outer rings of the first bracket 600, the second bracket 800, and the second bearing 900 to rotate. Since the rotational motion is not transmitted between the inner and outer rings of the second bearing 900, the rotational motion applied to the knob 400 will not be applied to the inner ring of the second bearing 900, the fixed bracket 220, and the display screen 210. Therefore, rotating the knob 400 will not cause the display screen 210 to become skewed. In addition, rotating the knob 400 will not cause the button cap of the switch 310 to be subjected to rotational tangential force, thereby improving the reliability of the switch 310 and extending its service life.

[0097] When the knob 400 is pressed, the knob 400 slides relative to the first bracket 600, simultaneously compressing the reset elastic element 500 along the axial direction of the knob 400, giving the reset elastic element 500 elastic potential energy. At the same time, the knob 400 pushes the outer ring of the second bearing 900 through the second bracket 800. The outer ring of the second bearing 900, through its inner ring, pulls the fixed bracket 220 and the display screen 210 along the axial direction of the knob 400 towards the switch 310, until the switch 310 is triggered. At this time, the circuit board 300 transmits the pressing signal to the display screen 210 through the electrical connection between the socket 320 and the connector 1000. Furthermore, when the knob 400 is pressed, the first positioning post 2251 and the second positioning post 2252 on the fixed bracket 220 move along the trajectory directions defined by the first positioning hole 331 and the second positioning hole 332, respectively, further preventing the display screen 210 from tilting due to the rotation of the knob 400.

[0098] Furthermore, when the knob 400 is in the pressed state, a rotational force can be applied to the knob 400 simultaneously, so that the knob 400 can rotate while being pressed, thereby realizing a combined operation mode of rotation + pressing of the knob mechanism, which can improve the functionality of the knob mechanism.

[0099] After the axial pressure on the knob 400 is released, the knob 400 resets under the elastic support of the reset elastic element 500, and drives the second bracket 800 and the trigger component 200 to reset in turn, so as to facilitate the user to perform the next operation.

[0100] Based on the knob mechanism provided in the embodiments of this application, this application also provides an electronic device. The electronic device may include a device body and the knob mechanism described in any of the above embodiments, and the knob mechanism may be disposed on the device body. Optionally, the electronic device may be an induction cooker, dishwasher, washing machine, vehicle central control device, or other equipment.

[0101] The beneficial effects achieved by the electronic device provided in this application embodiment are consistent with the beneficial effects achieved by the knob mechanism provided in this application embodiment, and will not be repeated here.

[0102] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A knob mechanism, characterized in that, include: A fixed housing assembly (100) is provided with a circuit board (300) inside the fixed housing assembly (100), and a switch (310) is provided on the circuit board (300); a trigger assembly (200) is partially located inside the fixed housing assembly (100), and the trigger assembly (200) is movable between an initial position and a trigger position. When the trigger assembly (200) is in the trigger position, the trigger assembly (200) triggers the switch (310); a knob (400) is disposed around at least a portion of the trigger assembly (200), and the knob (400) is rotatably connected to the trigger assembly (200). The knob (400) and the fixed housing assembly (100) are slidably engaged in the axial direction of the knob (400), and the knob (400) and the fixed housing assembly (100) are rotatable relative to each other about the axis of the knob (400).

2. The knob mechanism according to claim 1, characterized in that, The knob mechanism further includes a first bracket (600), which is rotatably connected to the fixed housing assembly (100), and the knob (400) and the first bracket (600) slide in axial direction of the knob (400).

3. The knob mechanism according to claim 2, characterized in that, The knob (400) is provided with an annular groove (430), the axis of the annular groove (430) coincides with the axis of the knob (400); the fixed shell assembly (100) includes a first connecting part (130), a portion of the first connecting part (130) and a portion of the first bracket (600) are both located in the annular groove (430), the first bracket (600) and the first connecting part (130) are rotatably connected by a first bearing (700), and the first bracket (600) and the groove wall of the annular groove (430) slide in axial direction of the knob (400).

4. The knob mechanism according to claim 3, characterized in that, The knob mechanism further includes a reset elastic element (500), which is located in the annular groove (430). The first end of the reset elastic element (500) is connected to the first bracket (600), and the second end of the reset elastic element (500) is connected to the knob (400). The reset elastic element (500) is used to drive the knob (400) to move so as to drive the trigger component (200) back to the initial position.

5. The knob mechanism according to claim 4, characterized in that, The first bracket (600) is provided with a limiting groove (601), a portion of the reset elastic member (500) is located in the limiting groove (601), and the first end of the reset elastic member (500) is connected to the bottom wall of the limiting groove (601).

6. The knob mechanism according to claim 3, characterized in that, The first bracket (600) and the groove wall of the annular groove (430) are provided with a sliding groove (602) and the other is provided with a sliding rail (401). The sliding rail (401) is located in the sliding groove (602) and slides with the sliding groove (602) in the axial direction of the knob (400). The sliding rail (401) and the groove wall of the sliding groove (602) are in upper circumferential upper limit engagement with the knob (400).

7. The knob mechanism according to claim 2, characterized in that, The first bracket (600) has a first limiting part (604) at one end near the switch (310). In the direction from the trigger component (200) to the switch (310), the knob (400) can be limited and cooperated with the first limiting part (604).

8. The knob mechanism according to claim 2, characterized in that, The first bracket (600) is provided with a second limiting part (603), and the knob (400) is provided with a third limiting part (405). In the direction from the switch (310) to the trigger component (200), the third limiting part (405) can cooperate with the second limiting part (603) for limiting.

9. The knob mechanism according to claim 1, characterized in that, The knob mechanism further includes a second bracket (800), which is rotatably connected to the trigger assembly (200) via a second bearing (900). The second bracket (800) is connected to the knob (400), and the second bracket (800) is in a limiting engagement with the knob (400) in the axial direction of the knob (400).

10. The knob mechanism according to claim 9, characterized in that, The second bracket (800) includes a bearing connection part (810) and a first snap-fit ​​part (820) connected to the bearing connection part (810). The knob (400) is provided with an abutment part (402) and a second snap-fit ​​part (403). In the direction from the trigger assembly (200) to the switch (310), the abutment part (402) is in a limiting engagement with the bearing connection part (810), and the first snap-fit ​​part (820) is in a limiting engagement with the second snap-fit ​​part (403).

11. The knob mechanism according to claim 1, characterized in that, One of the circuit board (300) and the trigger assembly (200) is provided with at least one positioning hole (330), and the other is provided with at least one positioning post (225). The positioning post (225) is slidably engaged with the positioning hole (330), and the positioning post (225) and the positioning hole (330) are in radial upper limit engagement with the knob (400).

12. The knob mechanism according to claim 11, characterized in that, The circuit board (300) and the trigger assembly (200) are provided with at least two positioning holes (330) and the other is provided with at least two positioning posts (225). The at least two positioning holes (330) include a first positioning hole (331) and a second positioning hole (332). The at least two positioning posts (225) include a first positioning post (2251) and a second positioning post (2252). The first positioning post (2251) is slidably engaged with the first positioning hole (331), and the first positioning post (2251) is slidably engaged with the first positioning hole (331). A positioning hole (331) is in radial upper limit engagement with the knob (400), and a second positioning pin (2252) is in sliding engagement with the second positioning hole (332), and the second positioning pin (2252) and the second positioning hole (332) are in radial upper limit engagement with the knob (400); the cross-sectional areas of the first positioning hole (331) and the second positioning hole (332) in the radial direction of the knob (400) are different, and the cross-sectional areas of the first positioning pin (2251) and the second positioning pin (2252) in the radial direction of the knob (400) are different.

13. The knob mechanism according to claim 1, characterized in that, The knob mechanism further includes a reset elastic element (500), which is disposed inside the fixed housing assembly (100). One end of the reset elastic element (500) is connected to the trigger assembly (200), and the other end of the reset elastic element (500) is connected to the circuit board (300) or the fixed housing assembly (100). The reset elastic element (500) is used to drive the trigger assembly (200) to return to the initial position.

14. The knob mechanism according to claim 1, characterized in that, The trigger assembly (200) includes a display screen (210) and a mounting bracket (220) for fixing the display screen (210). The display screen (210) is electrically connected to the circuit board (300). A portion of the mounting bracket (220) is located within the mounting housing assembly (100), and the mounting bracket (220) is rotatably connected to the knob (400).

15. An electronic device, characterized in that, It includes a device body and a knob mechanism as described in any one of claims 1-14, wherein the knob mechanism is disposed on the device body.

Images