Knob switch structure and imaging device equipped with same

Abstract

The utility model relates to the technical field of thermal imaging, and provides a knob switch structure and an imaging device equipped with the same. The knob switch structure comprises a base provided with an accommodating cavity, a rotary cover which sleeves and is rotatably connected to the base, and a control panel group arranged in the accommodating cavity, wherein the control panel group comprises a circuit board and an indicating lamp electrically connected to the circuit board; the knob switch structure further comprises a first gear control group arranged on the rotary cover and the base and a second gear control group arranged on the rotary cover and the circuit board. The first gear control set and the second gear control set each comprise a sensing part and a triggering part, one of the sensing parts and the triggering parts is arranged on the circuit board or the base, the other one of the sensing parts and the triggering parts is arranged on the rotary cover, and the multiple sensing parts and the multiple triggering parts are arranged in the rotating direction of the rotary cover at intervals. And one can be selected to be matched with the other to control the indicating lamp to carry out different display. According to the knob switch structure provided by the invention, the two gear control groups are matched with each other, so that the control precision and the control stability are improved.

Description

Technical Field

[0001] This application relates to the field of thermal imaging technology, and in particular to a rotary switch structure and an imaging device equipped with it. Background Technology

[0002] Thermal imaging equipment is equipped with a switch assembly to adjust its on / off and standby states. Typically, this switch assembly uses buttons, requiring multiple buttons to adjust different functions. This makes the overall thermal imaging equipment more complex and reduces ease of operation. Alternatively, some switch assemblies use rotary encoder knobs, where different functions are adjusted by rotating the knob. However, because these knobs lack integrated indicator lights, users cannot easily understand the equipment's status during use. Utility Model Content

[0003] Therefore, it is necessary to provide a rotary switch structure that can use different indicator lights to indicate different gear adjustments, and improve control accuracy and stability by utilizing the cooperation of two sets of gear control groups, making it easier for operators to operate.

[0004] A rotary switch structure includes a base with a receiving cavity, a cap sleeved and rotatably connected to the base, and a control board assembly disposed in the receiving cavity. The control board assembly includes a circuit board and an indicator light electrically connected to the circuit board. The rotary switch structure further includes a first gear control group and a second gear control group. The first gear control group is disposed on the cap and the base, and the second gear control group is disposed on the cap and the circuit board. Both the first gear control group and the second gear control group include a sensing part and a triggering part. One of the sensing part and the triggering part is disposed on the circuit board or the base, and the other is disposed on the cap. Multiple sensing parts and triggering parts are provided and spaced apart along the rotation direction of the cap, and can be selectively used in conjunction with the other to control the indicator light to display different information.

[0005] Understandably, this rotary switch structure utilizes the interaction of the trigger and sensing parts to control the indicator lights to display different information, thus indicating different adjustment levels. In other words, it combines level adjustment with indicator light display, making operation simpler and more intuitive. Furthermore, the dual-cooperation mode of the first and second level control groups allows for mutual constraint, improving control precision. Simultaneously, since the first level control group is located between the cap and the base, and the second level control group is located between the cap and the circuit board 31, the independent setting of the two level control groups is fully guaranteed, ensuring that the corresponding sensing and trigger parts do not interfere with each other, further improving control precision and stability.

[0006] In some embodiments, the first gear control group and the second gear control group are arranged circumferentially spaced along the cap.

[0007] In some embodiments, the sensing part and the triggering part in the first gear control group and the second gear control group are in contact with each other; or, the sensing part and the triggering part in the first gear control group are in contact with each other, and the sensing part and the triggering part in the second gear control group are in electromagnetic induction cooperation.

[0008] In some embodiments, the first gear control group corresponds to a first sensing unit and a first trigger unit, and the second gear control group corresponds to a second sensing unit and a second trigger unit. One of the first sensing unit and the second sensing unit is defined as a positive terminal and the other is defined as a negative terminal. One of the positive terminal and the negative terminal cooperates with the first trigger unit and the other cooperates with the second trigger unit to define a current loop. The indicator light can emit a display according to the current loop.

[0009] In some embodiments, the control board assembly further includes a connector electrically connected to the circuit board, the connector having a second sensing element; the base has a mating area and a clearance area arranged circumferentially along the cap, the clearance area corresponding to the connector, and the mating area having a first sensing element.

[0010] In some embodiments, the clearance area is a clearance hole extending axially along the cap, the clearance hole communicating with the receiving cavity, and the connector and / or the second gear control assembly passing through the clearance hole.

[0011] In some embodiments, the first gear control group corresponds to a first sensing unit and a first trigger unit, and the second gear control group corresponds to a second sensing unit and a second trigger unit; the second sensing unit is a Hall element, the second trigger unit is a magnet, and the circuit of the indicator light is configured to conduct in response to the electromagnetic induction between the Hall element and the magnet.

[0012] In some embodiments, the cap has an assembly cavity, at least a portion of the base is accommodated within the assembly cavity, and the first trigger portion and the second trigger portion are both disposed on the cavity wall of the assembly cavity and arranged at intervals along the circumference of the cap.

[0013] In some embodiments, both the first trigger portion and the second trigger portion are arranged along the axial direction of the screw cap; or, both the first trigger portion and the second trigger portion are arranged along the radial direction of the screw cap.

[0014] In some embodiments, the base has a protruding limiting portion, and the knob switch structure further includes a pressure plate. The pressure plate is connected to one end of the base away from the limiting portion, and both the pressure plate and the limiting portion are pressed against both ends of the cap along its own axial direction.

[0015] In some embodiments, the base is provided with a light-transmitting channel communicating with the accommodating cavity, and the indicator light is set corresponding to the light-transmitting channel; the rotary switch structure also includes a decorative cover, which seals the opening of the light-transmitting channel.

[0016] In some embodiments, the triggering part includes an elastic element, a column, and a spherical part. The elastic element is connected between the screw cap and the column, and the spherical part is located on the side of the column opposite to the elastic element. The elastic element is used to apply a force to the column toward the spherical part. The sensing part includes a recess in the base or the circuit board, and the spherical part is movable into or out of the recess.

[0017] In one embodiment, the rotary switch structure further includes a seal;

[0018] The sealing element is pressed between the base and the screw cap, and / or the sealing element covering the indicator light is pressed between the circuit board and the base.

[0019] In some embodiments, the rotary switch structure further includes:

[0020] A limiting component includes a limiting groove and a limiting block disposed within the limiting groove. One of the limiting groove and the limiting block is disposed on the base, and the other is disposed on the cap. The limiting groove extends along the rotation direction of the cap, and the limiting block is movable within the limiting groove.

[0021] This application also provides an imaging device, including an imaging body and the aforementioned rotary switch structure, wherein the rotary switch structure is connected to the imaging body. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A cross-sectional view of a rotary switch structure provided in an embodiment of this application;

[0024] Figure 2 for Figure 1 A magnified view of a section at point M;

[0025] Figure 3 for Figure 1 A schematic diagram of the rotary switch structure with a rotating cap provided;

[0026] Figure 4 for Figure 1 A schematic diagram of the base in the provided rotary switch structure;

[0027] Figure 5 for Figure 1 A schematic diagram of the control board assembly in the provided rotary switch structure;

[0028] Figure 6 for Figure 1 An exploded view of the provided rotary switch structure;

[0029] Figure 7 A cross-sectional view of a rotary switch structure provided in another embodiment of this application;

[0030] Figure 8 for Figure 7 A schematic diagram of the base in the provided rotary switch structure;

[0031] Figure 9 for Figure 7 A schematic diagram of the rotary switch structure with a rotating cap provided;

[0032] Figure 10 for Figure 7 An exploded view of the provided rotary switch structure.

[0033] Reference numerals: 10, base; 11, bearing boss; 12, assembly column; 13, adapter; 20, screw cap; 30, control board assembly; 31, circuit board; 32, indicator light; 33, connector; 41, first gear control group; 42, second gear control group; 50, decorative cover; 60, pressure plate; 70, seal; 71, first seal; 72, second seal; 73, third seal; 74, lampshade seal; 80, limiting assembly; 81, limiting block; 82, limiting groove; 101, receiving cavity. ; 102, Light-transmitting channel; 103, Mating area; 104, Avoidance area; 121, Threaded section; 131, Limiting part; 201, Groove; 202, Assembly cavity; 203, Mating step; 401, Column; 402, Spherical surface; 403, Recess; 411, First sensing part; 412, First triggering part; 421, Second sensing part; 422, Second triggering part; 601, Assembly hole; 2011, Limiting end face; 2021, Large diameter section; 2022, Small diameter section; 4011, Limiting step. Detailed Implementation

[0034] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0035] It should be noted that when a component is referred to as being "fixed to" or "attached to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0039] Please see Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 7This application provides a rotary switch structure, including a base 10, a cap 20, and a control board assembly 30. The base 10 has a receiving cavity 101, and the cap 20 is sleeved and rotatably connected to the base 10, capable of rotating relative to the base 10 around its own axis. The control board assembly 30 is disposed within the receiving cavity 101 and includes a circuit board 31 and an indicator light 32 electrically connected to the circuit board 31. The rotary switch structure also includes a first position control group 41 and a second position control group 42. The first position control group 41 is disposed between the cap 20 and the base 10, and the second position control group 42 is disposed between the cap 20 and the circuit board 31. Both the first position control group 41 and the second position control group 42 include a sensing part and a triggering part.

[0040] The first gear control group 41 corresponds to the first sensing unit 411 and the first trigger unit 412. The first sensing unit 411 is located on the base 10, and the first trigger unit 412 is located on the screw cap 20. Multiple first sensing units 411 are arranged at intervals along the rotation direction of the screw cap 20. Simultaneously, the second gear control group 42 corresponds to the second sensing unit 421 and the second trigger unit 422. The second sensing unit 421 is located on the circuit board 31, and the second trigger unit 422 is located on the screw cap 20. Multiple second sensing units 421 are arranged at intervals along the rotation direction of the screw cap 20. In actual use, the screw cap 20 can rotate relative to the base 10 around its own axis, allowing one of the multiple first sensing units 411 to engage with the first trigger unit 412, and one of the multiple second sensing units 421 to engage with the second trigger unit 422, thereby controlling the indicator light 32 to display different information.

[0041] Please see Figure 1 , Figure 3 , Figure 4 and Figure 5Taking an example where three first sensing units 411 and three second sensing units 421 are provided respectively, the three first sensing units 411 are denoted as A, B, and C, and the three second sensing units 421 are denoted as E, F, and G. Since both the first trigger unit 412 and the second trigger unit 422 are located on the screw cap 20, when the screw cap 20 rotates, the first trigger unit 412 and the second trigger unit 422 rotate synchronously. When the first trigger unit 412 cooperates with the first sensing unit 411 denoted as A, the second trigger unit 422 cooperates with the second sensing unit 421 denoted as E. At this time, the control indicator light 32 can display one color, such as green, and correspond to one function control, such as powering on. When the first trigger unit 412 cooperates with the first sensing unit 411 denoted as B, the second trigger unit 422 cooperates with the second sensing unit 421 denoted as F. At this time, the control indicator light 32 can display another color, such as red, and correspond to another function control, such as powering off. When the first trigger unit 412 cooperates with the first sensing unit 411 denoted as C, the second trigger unit 422 cooperates with the second sensing unit 421 denoted as G. At this time, the control indicator 32 can display another color, such as yellow, and correspond to another function control, such as standby.

[0042] In this process, the indicator light 32 is used to indicate different gear positions, i.e., different adjustment functions, which is simpler and more intuitive, especially suitable for dimly lit environments, allowing for clearer and easier observation of the gear position. Furthermore, the dual-cooperation mode of the first gear control group 41 and the second gear control group 42 allows for mutual constraint, improving control accuracy. Also, the two gear control groups allow one to function as mechanical feedback and the other as electrical signal feedback, facilitating operator control. Simultaneously, the independent placement of the first gear control group 41 between the cap 20 and the base 10, and the second gear control group 42 between the cap 20 and the circuit board 31, ensures that the two groups operate independently, preventing interference between their respective sensing and triggering components, further improving control accuracy and stability. Moreover, the cavity 101 on the base 10 can accommodate the control board assembly 30, improving protection for circuit components and facilitating long-term use.

[0043] It should be noted that the screw cap 20 rotates around its own axis, and the direction of rotation of the screw cap 20 is the circumferential direction of the screw cap 20, which will be referred to as the circumferential direction of the screw cap 20 below.

[0044] Alternatively, the first sensing part 411 can be disposed on the cap 20, and the first trigger part 412 can be disposed on the base 10. Multiple first trigger parts 412 can be provided and arranged at intervals along the circumference of the cap 20. Simultaneously, the second sensing part 421 can be disposed on the cap 20, and the second trigger part 422 can be disposed on the circuit board 31. Multiple second trigger parts 422 can be provided and arranged at intervals along the circumference of the cap 20. In this case, as the cap 20 rotates, the first sensing part 411 and the second sensing part 421 move accordingly, thereby selectively engaging with one of the multiple first trigger parts 412 or the multiple second trigger parts 422 to satisfy different displays of the indicator light 32.

[0045] Please see Figure 1 and Figure 7 In some embodiments, the base 10 is provided with a light-transmitting channel 102 communicating with the accommodating cavity 101, and the indicator light 32 is set corresponding to the light-transmitting channel 102; the knob switch structure also includes a decorative cover 50, which seals the opening of the light-transmitting channel 102. That is to say, by using the setting of the light-transmitting channel 102, the light of the indicator light 32 can be fully emitted, which is conducive to personnel observation. At the same time, in conjunction with the setting of the decorative cover 50, the light-transmitting channel 102 can be sealed to ensure that external impurities, moisture, etc. will not seep into the accommodating cavity 101 through the light-transmitting channel 102. The decorative cover 50 is made of a light-transmitting material to reduce light interference to the indicator light 32. For example, the decorative cover 50 can be made of transparent plastic, glass, etc., as long as it ensures that the light can be fully emitted and does not affect the color of the light.

[0046] The end of the light-transmitting channel 102 facing the decorative cover 50 can be gradually widened, which is more conducive to light diffusion.

[0047] Please see Figures 1 to 6 For example, in the first gear control group 41 and the second gear control group 42, the sensing part and the triggering part are in contact with each other. That is, the first triggering part 412 and the first sensing part 411 are in contact with each other, and the second triggering part 422 and the second sensing part 421 are in contact with each other. In other words, the direct contact between the sensing part and the triggering part facilitates precise coordination; moreover, the contact-type coordination provides appropriate force feedback to the user, thus making it easier for the user to feel the gear adjustment. Therefore, this setting, based on the indicator light 32 and combined with the contact-type feedback coordination, improves the accuracy and reliability of gear adjustment achieved by rotating the cover 20, reduces the risk of gear switching due to misoperation, and improves the safety of use.

[0048] Please see Figures 1 to 5In an optional embodiment, one of the first sensing part 411 and the second sensing part 421 is defined as a positive electrode and the other is defined as a negative electrode. One of the positive electrode and the negative electrode cooperates with the first trigger part 412 and the other cooperates with the second trigger part 422 to define a current loop, and the indicator light 32 can emit a display according to the current loop.

[0049] With the first sensing part 411 as the negative electrode and the second sensing part 421 as the positive electrode, when the first trigger part 412 contacts and engages with the first sensing part 411, and the second trigger part 422 contacts and engages with the second sensing part 421, it is equivalent to connecting the positive and negative electrodes, thereby connecting the current circuit that causes the indicator light 32 to emit light, thus facilitating the indicator light 32 to emit light to indicate the corresponding gear position. When there are three of each of the first sensing part 411 and the second sensing part 421, there are three parallel current circuits. When one current circuit is connected, the other two current circuits are disconnected.

[0050] The first sensing part 411, the second sensing part 421, the first trigger part 412, and the second trigger part 422 are all made of conductive metal, such as copper or aluminum. The screw cap 20 is also made of conductive metal, thus forming a conductor together with the first trigger part 412 and the second trigger part 422 mounted on it. When the screw cap 20 rotates, the first trigger part 412 contacts one of the first sensing parts 411, and the second trigger part 422 contacts one of the second sensing parts 421. This causes the circuitry on the first sensing part 411, the first trigger part 412, the screw cap 20, the second trigger part 422, the second sensing part 421, and the circuit board 31 to become conductive, thereby controlling the indicator light 32 to display.

[0051] It should be noted that an insulating layer may be fitted on the outside of the screw cap 20 to ensure the safety of the screw cap 20 itself and avoid risks such as short circuits or electric shocks. For example, the screw cap 20 includes a metal body and an insulating layer wrapped around the outer layer of the metal body, and both the first trigger part 412 and the second trigger part 422 are connected to the metal body.

[0052] Please see Figure 1 and Figure 2 In some embodiments, both the first trigger portion 412 and the second trigger portion 422 include an elastic element, a pillar 401, and a spherical portion 402. The elastic element is connected between the screw cap 20 and the pillar 401, and the spherical portion 402 is disposed on the side of the pillar 401 opposite to the elastic element. The elastic element is used to apply a force to the pillar 401 toward the spherical portion 402. The first sensing portion 411 and the second sensing portion 421 include a recess 403 disposed on the base 10 or the circuit board 31, and the spherical portion 402 can move into or out of the recess 403.

[0053] Understandably, when the spherical part 402 moves into the recess 403, the contact engagement between the sensing part and the corresponding triggering part is satisfied. Furthermore, the recess 403 provides a certain limiting effect in the circumferential direction of the cap 20, improving the reliability of the engagement and reducing the risk of gear switching due to accidental activation of the cap 20. Simultaneously, the elastic element allows the spherical part 402 and the cylinder 401 to float slightly in the axial direction of the cylinder 401. This not only facilitates a tight fit between the spherical part 402 and the recess 403 but also allows the spherical part 402 to move out of the recess 403. In addition, when the first triggering part 412 and the second triggering part 422 contact the corresponding first sensing part 411 and second sensing part 421, respectively, the elastic element absorbs some of the impact force, acting as a buffer to protect the components from damage and extend the service life of the rotary switch.

[0054] Please continue reading. Figure 1 and Figure 2 In actual use, the cap 20 is provided with a groove 201 for installing the first trigger part 412 and the second trigger part 422. The elastic element and the column 401 are provided in the groove 201, and the elastic element can abut against the bottom of the groove 201 and the column 401. The spherical part 402 protrudes from the groove 201, which is conducive to the cooperation with the recess 403. At the same time, the groove 201 has a limiting end face 2011 on the side facing the spherical part 402, and the column 401 has a limiting step 4011 protruding along its own radial direction. The limiting step 4011 and the limiting end face 2011 abut against each other, which limits the movement of the pair of columns 401 toward the groove 201.

[0055] Please combine Figure 1 , Figure 3 , Figure 4 and Figure 5 Optionally, the control board assembly 30 further includes a connector 33 electrically connected to the circuit board 31, and the connector 33 is provided with a second sensing part 421. That is, by using the connector 33, the second sensing part 421 is connected to the circuit on the circuit board 31 used to control the indicator light 32, thereby facilitating the adjustment of the indicator light 32's level. Moreover, the connector 33 can also be connected to external devices, thereby enabling the rotary switch structure to be linked and controlled with external devices.

[0056] In practical use, the base 10 is provided with a mating area 103 and a clearance area 104, both arranged circumferentially along the cap 20. The clearance area 104 is provided corresponding to the connector 33, and the mating area 103 is provided with a first sensing part 411. It can be understood that the arrangement of the mating area 103 and the clearance area 104 is used to space the first gear control group 41 and the second gear control group 42 circumferentially along the cap 20, reducing interference. Since the connector 33 itself is relatively large, the clearance area 104 on the base 10 provides sufficient assembly space for the connector 33, reducing the interference of the base 10 on the connecting machine and ensuring the normal operation of the connector 33 and stable signal transmission.

[0057] like Figure 1 , Figure 4 and Figure 5 As shown, the clearance area 104 is a clearance hole extending axially along the cap 20, communicating with the receiving cavity 101, and the connector 33 passes through the clearance hole. That is, the clearance hole allows the connector 33 to extend out of the receiving cavity 101, ensuring that the multiple second sensing parts 421 on the connector 33 are fully exposed outside the receiving cavity 101, facilitating cooperation with the second trigger part 422. Simultaneously, the communication between the clearance hole and the receiving cavity 101 also allows for heat dissipation of the circuit components on the circuit board 31 and the connector 33, improving the overall stability of the rotary switch structure.

[0058] like Figures 1 to 3 As shown, in actual use, the cap 20 is provided with an assembly cavity 202. The cap 20 is fitted onto the outside of the base 10 through the assembly cavity 202, and at least a portion of the base 10 is accommodated within the assembly cavity 202. The first trigger part 412 and the second trigger part 422 are mounted on the cavity wall of the assembly cavity 202 and protrude from the cavity wall. The clearance hole connects the assembly cavity 202 and the receiving cavity 101, so that each of the second sensing parts 421 on the connector 33 is fully exposed, which is conducive to selectively engaging with the second trigger part 422.

[0059] The shape and size of the clearance hole can be adjusted according to the specific dimensions of the connector 33 to meet different assembly requirements.

[0060] Alternatively, a portion of connector 33 may pass through the clearance hole, and a portion of the second trigger portion 422 may be accommodated within the clearance hole, with the second trigger portion 422 and the second sensing portion 421 engaging within the clearance hole. Alternatively, only the second trigger portion 422 may pass through the clearance hole to achieve engagement with the second sensing portion 421. The only requirement is that the engagement of the second trigger portion 422 and the second sensing portion 421 be satisfied; this is merely an example.

[0061] Please see Figures 1 to 5For example, the first trigger part 412 and the second trigger part 422 are both arranged along the axial direction of the cap 20. That is, the axial direction of the first trigger part 412 and the second trigger part 422 is along the axial direction of the cap 20. Specifically, the base 10 has a support boss 11 on the side away from the circuit board 31, and the support boss 11 is divided into a mating area 103 and a clearance area 104. A plurality of first sensing parts 411 are spaced apart on the side of the support boss 11 away from the circuit board 31, that is, located in the mating area 103. The clearance hole passes through the support boss 11 along the axial direction of the cap 20 to communicate with the receiving cavity 101. The connector 33 passes through the through hole, and a plurality of second sensing parts 421 are spaced apart on the side of the connector 33 away from the circuit board 31. In this way, the first trigger part 412 and the first sensing part 411, and the second trigger part 422 and the second sensing part 421, are all mated along the axial direction of the cap 20.

[0062] This arrangement makes full use of the space around the circumference of the cover 20, thereby reducing the size of the rotary switch structure along the axial direction of the cover 20; and, precisely because the first trigger part 412 and the second trigger part 422 are arranged along the axial direction of the cover 20, the size along the radial direction of the cover 20 can be reduced, which is more conducive to compact design.

[0063] Please see Figures 7 to 9 Alternatively, both the first trigger portion 412 and the second trigger portion 422 are disposed on the cavity wall of the assembly cavity 202 and arranged at intervals along the circumference of the cap 20. That is, the axial direction of the first trigger portion 412 and the second trigger portion 422 is along the radial direction of the cap 20. At this time, the portion of the outer peripheral sidewall of the base 10 that supports the protrusion serves as the mating area 103, where a plurality of spaced-apart first sensing portions 411 are provided. The clearance hole passes through the support boss 11 along the radial direction of the cap 20 to communicate with the receiving cavity. A plurality of second sensing portions 421 are disposed on the outer side of the connector 33 along the radial direction of the cap 20. This arrangement also makes full use of the space in the circumferential direction of the cap 20 to reduce the size along the axial direction of the cap 20.

[0064] In other embodiments, the first gear control group 41 and the second gear control group 42 are arranged at an axial interval along the cap 20. They only need to be able to satisfy different display controls for the indicator light 32.

[0065] Please see Figure 1 and Figure 7Optionally, the base 10 is provided with a limiting part 131, and the knob switch structure also includes a pressure plate 60. The pressure plate 60 is connected to the end of the base 10 away from the limiting part 131, and both the pressure plate 60 and the limiting part 131 are pressed against both ends of the cap 20 along its own axial direction. Specifically, the base 10 has a threaded section 121 at the end of the cap 20 away from the limiting part 131 along its axial direction, and the pressure plate 60 is threadedly connected to the threaded section 121. As the pressure plate 60 is tightened relative to the threaded section 121, the limiting part 131 abuts against the end of the cap 20 away from the pressure plate 60, and the pressure plate 60 can be pressed onto the cap 20. Therefore, the mutual cooperation of the pressure plate 60 and the limiting part 131 improves the connection reliability between the base 10 and the cap 20.

[0066] Please continue reading. Figure 1 and Figure 7 Furthermore, the pressure plate 60 is provided with an assembly hole 601 extending axially along the cap 20, and the wall of the assembly hole 601 is provided with internal threads. The assembly hole 601 communicates with the light-transmitting channel 102 on the aforementioned base 10, and the decorative cover 50 is connected to the end of the pressure plate 60 away from the base 10. The assembly cavity 202 of the cap 20 extends axially, and both the base 10 and the pressure plate 60 are accommodated in the assembly cavity 202 of the cap 20. The decorative cover 50 can be bonded to the pressure plate 60 and seal the opening of the assembly cavity 202 away from the limiting part 131. Of course, the decorative cover 50 can also be integrally formed with the pressure plate 60. Alternatively, the decorative cover 50 can be bonded to the opening edge of the cap 20, and the decorative cover 50 can rotate synchronously with the cap 20. In this case, a gap can also be provided between the decorative cover 50 and the pressure plate 60 so that the two do not directly contact each other; or, an anti-wear pad can be provided between the decorative cover 50 and the pressure plate 60. This is just an example.

[0067] Please continue reading. Figure 1 and Figure 7In actual use, the rotary switch structure also includes a sealing element 70, which is pressed between the base 10 and the cap 20. The sealing element 70 improves the sealing performance between the base 10 and the cap 20. Specifically, multiple sealing elements 70 are provided, namely a first sealing element 71, a second sealing element 72, and a third sealing element 73. The base 10 includes a supporting boss 11, an assembly post 12, and an adapter 13. The assembly post 12 and the adapter 13 are respectively connected to the two ends of the supporting boss 11 along the axial direction of the cap 20, and the three can be integrally formed. The diameter of the assembly post 12 is smaller than the diameter of the supporting boss 11. The assembly cavity 202 on the cap 20 is stepped, including a large-diameter section 2021 and a small-diameter section 2022 connected to the large-diameter section 2021. The large-diameter section 2021 mates with the supporting boss 11, and the small-diameter section 2022 mates with the assembly post 12. A mating step 203 is provided between the large-diameter section 2021 and the small-diameter section 2022. When the trigger part and the sensing part are mated along the axial direction of the cap 20, the aforementioned first trigger part 412 and second trigger part 422 are both provided on the mating step 203. The first sealing member 71 is pressed between the mounting post 12 and the hole wall of the small-diameter section, and the second sealing member 72 is pressed between the outer peripheral side wall of the bearing boss 11 and the hole wall of the large-diameter section. The adapter part 13 protrudes from the mounting cavity 202, and the third sealing member 73 is sleeved on the outer peripheral side of the adapter part 13 for mating with the component that mounts the rotary switch structure. The aforementioned threaded section 121 is provided at one end of the mounting post 12 away from the adapter part 13, and the aforementioned limiting part 131 is provided at one end of the adapter part 13 away from the mounting post 12.

[0068] The assembly of each seal 70 utilizes a sealing groove. Further details will not be provided here.

[0069] Furthermore, both ends of the small-diameter section along the axial direction of the cap 20 are connected to large-diameter sections. One of the large-diameter sections mates with the bearing boss 11, and the other large-diameter section is used to accommodate the aforementioned pressure plate 60 and decorative cover 50.

[0070] Please continue reading. Figure 1 and Figure 7 Furthermore, the rotary switch structure also includes a lampshade seal 74, which covers the outside of the indicator light 32 and is pressed between the base 10 and the circuit board 31. The lampshade seal 74 is made of a light-transmitting material. This improves the sealing performance of the circuit board 31 relative to the base 10 at the light-transmitting channel 102, reduces the risk of moisture seeping in through the light-transmitting channel 102, and enhances the protection of the circuit board 31 and the indicator light 32.

[0071] Please see Figure 1 , Figure 3 , Figure 4 , Figure 8 and Figure 9In some embodiments, the rotary switch structure further includes a limiting component 80 disposed between the base 10 and the cap 20, which not only guides the rotation of the cap 20 but also limits the rotation angle of the cap 20. Specifically, the limiting component 80 includes a limiting groove 82 and a limiting block 81 disposed within the limiting groove 82. One of the limiting groove 82 and the limiting block 81 is disposed on the base 10, and the other is disposed on the cap 20. The limiting groove 82 extends along the rotation direction of the cap 20, and the limiting block 81 can move within the limiting groove 82. That is, the movement of the limiting block 81 within the limiting groove 82 is used to satisfy the guiding and limiting function of the rotation of the cap 20.

[0072] For example, the cap 20 has a recessed limiting groove 82 at the mating step 203, and the base 10 has a protruding limiting block 81 at the mating area 103 of the bearing boss 11. The limiting block 81 is inserted into the limiting groove 82 and moves within the limiting groove 82 as the cap 20 rotates. Conversely, the limiting groove 82 can also be recessed in the base 10, and the limiting block 81 can protrude from the cavity wall of the assembly cavity 202 of the cap 20 to satisfy the guiding and limiting functions.

[0073] Please see Figures 7 to 10 In another embodiment, the second sensing part 421 is a Hall element, the second triggering part 422 is a magnet, and the circuit of the indicator light 32 is configured to conduct in response to the electromagnetic induction between the Hall sensor and the magnet. That is, the electromagnetic induction between the Hall element and the magnet is used to activate the lighting circuit of the indicator light 32, which has high sensitivity and stability. Multiple Hall elements are provided and arranged at intervals along the circumference of the cover 20 on the circuit board 31. A magnet is provided and embedded in the cavity wall of the mounting cavity 202 of the cover 20. Rotation of the cover 20 can drive the magnet to rotate synchronously. When the magnet rotates to correspond with one of the Hall elements, the Hall element detects the magnetic flux provided by the magnet and outputs a detection signal, thereby causing the indicator light 32 to display one of the colors. When the magnet rotates with the cover 20 to correspond with another Hall element, the Hall element can output another detection signal, causing the indicator light 32 to display another color.

[0074] The Hall element is a Hall sensor. The screw cap 20 has two opposite and spaced grooves 201 recessed radially outward on the cavity wall of the assembly cavity 202. One groove 201 contains a first trigger part 412, and the other groove 201 contains a magnet.

[0075] In actual use, the first sensing part 411 and the first trigger part 412 in the first gear control group 41 still adopt contact engagement. The specific contact engagement structure has been described in detail above, so it will not be repeated here.

[0076] like Figure 7 and Figure 8As shown, the base 10 is cylindrical and a sealing element 70 is pressed between the end opposite to the decorative cover 50 and the screw cap 20.

[0077] This application also provides an imaging device, including an imaging body and the aforementioned rotary switch structure, which is connected to the imaging body. The circuit board 31 in the rotary switch structure is electrically connected to the control board in the imaging body. When the rotary cover 20 in the rotary switch structure is rotated to control the indicator light 32 to switch different colors via the circuit board 31, the opening and closing status of the imaging body can also be adjusted through the electrical connection between the circuit board 31 and the control board, facilitating use by the operator.

[0078] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0079] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A knob switch structure characterized by, The application relates to a knob switch structure, which comprises a base (10) provided with a containing cavity (101), a rotary cover (20) sleeved and rotationally connected to the base (10), and a control board set (30) arranged in the containing cavity (101), wherein the control board set (30) comprises a circuit board (31) and an indicating lamp (32) electrically connected to the circuit board (31); the knob switch structure further comprises: a first gear control set (41) arranged between the rotary cover (20) and the base (10); a second gear control set (42) arranged between the rotary cover (20) and the circuit board (31); wherein the first gear control set (41) and the second gear control set (42) each comprise an induction part and a trigger part, one of the induction part and the trigger part is arranged on the circuit board (31) or the base (10), and the other is arranged on the rotary cover (20), and one of the induction part and the trigger part is provided with a plurality of parts and is arranged at intervals along the rotation direction of the rotary cover (20) and can selectively cooperate with the other to control the indicating lamp (32) to display differently.

2. The knob switch structure according to claim 1, characterized by The induction part and the trigger part in the first gear control set (41) and the second gear control set (42) are in contact; or, the induction part and the trigger part in the first gear control set (41) are in contact, and the induction part and the trigger part in the second gear control set (42) are in electromagnetic induction.

3. The knob switch structure according to claim 1, wherein The first gear control set (41) corresponds to a first induction part (411) and a first trigger part (412), the second gear control set (42) corresponds to a second induction part (421) and a second trigger part (422), one of the first induction part (411) and the second induction part (421) is defined as a positive electrode part, and the other is defined as a negative electrode part; one of the positive electrode part and the negative electrode part cooperates with the first trigger part (412), and the other cooperates with the second trigger part (422) to define a current loop, and the indicating lamp (32) can emit display according to the current loop.

4. The knob switch structure according to claim 3, characterized by The control board set (30) further comprises a connector (33) electrically connected to the circuit board (31), the connector (33) is provided with the second induction part (421); the base (10) is provided with a matching area (103) and a avoiding area (104) arranged along the circumference of the rotary cover (20), the avoiding area (104) is arranged corresponding to the connector (33), and the matching area (103) is provided with a first induction part (411).

5. The knob switch structure according to claim 4, wherein The avoiding area (104) is an avoiding hole penetrating along the axial direction of the rotary cover (20), the avoiding hole is communicated with the containing cavity (101), and the connector (33) and / or the second gear control set (42) are arranged in the avoiding hole.

6. The knob switch structure according to claim 1, wherein The first gear control group (41) corresponds to a first sensing portion (411) and a first triggering portion (412), and the second gear control group (42) corresponds to a second sensing portion (421) and a second triggering portion (422); the second sensing portion (421) is a Hall element, the second triggering portion (422) is a magnet, and the circuit of the indicator light (32) is configured to be turned on in response to electromagnetic induction between the Hall element and the magnet.

7. The knob switch structure according to claim 3 or 6, characterized by The cap (20) is provided with a fitting cavity (202), at least part of the base (10) is contained in the fitting cavity (202), and the first triggering portion (412) and the second triggering portion (422) are arranged on the cavity wall of the fitting cavity (202) and are arranged along the circumference of the cap (20).

8. The knob switch structure according to claim 7, wherein The first triggering portion (412) and the second triggering portion (422) are arranged along the axial direction of the cap (20); or the first triggering portion (412) and the second triggering portion (422) are arranged along the radial direction of the cap (20).

9. The knob switch structure according to claim 7, wherein The base (10) is provided with a limiting portion (131), and the knob switch structure further comprises a pressing plate (60) connected to one end of the base (10) away from the limiting portion (131), and the pressing plate (60) and the limiting portion (131) are arranged at both ends of the cap (20) along the axial direction of the cap (20).

10. The knob switch structure according to claim 1, wherein The base (10) is provided with a light transmission channel (102) communicating with the accommodating cavity (101), and the indicator light (32) is arranged corresponding to the light transmission channel (102). The knob switch structure further comprises a decorative cover (50) sealing the opening of the light transmission channel (102).

11. The knob switch structure according to claim 1, wherein The triggering portion comprises an elastic member, a column (401) and a spherical portion (402), the elastic member is connected between the cap (20) and the column (401), the spherical portion (402) is arranged on the side of the column (401) away from the elastic member, and the elastic member is used to apply a force to the column (401) towards the spherical portion (402). The sensing portion comprises a recess (403) arranged on the base (10) or the circuit board (31), and the spherical portion (402) can move into or out of the recess (403).

12. The knob switch structure according to claim 1, wherein The knob switch structure further comprises a sealing member (70). The sealing member (70) is arranged between the base (10) and the cap (20), and / or the sealing member (70) is arranged between the circuit board (31) and the base (10) and covers the indicator light (32).

13. The knob switch structure according to claim 1, wherein The knob switch structure further comprises: A limiting assembly (80) comprising a limiting groove (82) and a limiting block (81) arranged in the limiting groove (82), one of the limiting groove (82) and the limiting block (81) is arranged on the base (10), and the other is arranged on the cap (20), the limiting groove (82) extends along the rotation direction of the cap (20), and the limiting block (81) can move in the limiting groove (82).

14. An imaging device, characterized by The imaging body and the knob switch structure according to any one of claims 1 to 13 are connected.

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