Knob device

Abstract

The invention discloses a rotary knob device, belongs to the technical field of rotary knobs, solves the problem of standby power consumption of rotary knobs, and adopts the technical scheme that the rotary knob device mainly comprises a rotary knob body, a shell, a control circuit board hidden between the shell and the rotary knob body and a power switch button arranged on the outer surface of the shell, and the control circuit board is provided with a power switch key; the power switch button and the power switch key are correspondingly arranged inside and outside, so that the power switch key is triggered to turn on or turn off the knob device after the power switch button is pressed. The cruising ability of the knob is mainly improved.

Description

Technical Field

[0001] The invention relates to the technical field of knobs, in particular to a knob device. Background Art

[0002] With the intelligent development of home appliances and equipment, knobs have gradually evolved into a common operating unit, widely used in home appliances, auto parts, audio equipment, medical equipment and other fields.

[0003] In household appliances, knobs are usually used to control and adjust the functions of household appliances. In order to improve the user experience of the knob, the knob can be fixed on the device or taken off the device to be used as a remote control. In order to facilitate the removal of the knob for use, a battery pack is usually installed in the knob to store the power required for the knob to operate.

[0004] Most of the existing knobs are in standby mode when not in use, and the power of the battery pack will gradually be consumed in the standby mode until it is completely consumed, affecting the battery life of the knob after charging. Summary of the invention

[0005] The purpose of the present invention is to provide a knob device to solve the problem of knob standby power consumption and improve the endurance of the knob.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a knob device, including a knob body, a shell, a control circuit board hidden between the shell and the knob body, and a power switch button arranged on the outer surface of the shell, the control circuit board is provided with a power switch key, the power switch button and the power switch key are arranged correspondingly inside and outside so that pressing the power switch button triggers the power switch key to turn on or off the knob device.

[0007] After adopting the above technical scheme, the present invention has the following advantages: when it is necessary to start and use the knob device, press the power switch button behind the shell, and through the corresponding internal and external settings of the power switch button and the power switch key, the pressing force exerted on the power switch button acts on the power switch key through the power switch button, thereby triggering the power switch key and starting the knob device. When it is necessary to turn off the knob device, the power switch button is also pressed to trigger the power switch key, so that when the knob is not needed, the power switch button can be pressed to press the power switch key, causing the knob in the standby state to be in the off state after being turned off, thereby reducing the possibility of the knob continuing to consume power in the standby state, thereby improving the endurance of the knob.

[0008] Furthermore, the control circuit board is provided with a secondary induction coil, and the power switch is located on the outer peripheral side of the secondary induction coil.

[0009] By adopting the above-mentioned technical solution, when the knob device is charged, the induced current generated by the induction of the secondary induction coil and the induced magnetic field of the charging component is used for charging. During the charging process, the power switch key containing metal material is located outside the secondary induction coil, so that the power switch key deviates from the magnetic field center of the charging component, thereby reducing the influence of the power switch key containing metal material on the induction charging of the secondary induction coil after being magnetized in the magnetic field, reducing the influence of the power switch key containing metal material on the charging efficiency of the knob device, and reducing the possibility of the power switch key containing metal material being affected by the magnetic field and generating induced current and causing abnormal heating.

[0010] Furthermore, a distance S1 between the power switch key and the edge of the control circuit board is greater than a distance S2 between the power switch key and the outer peripheral side of the secondary induction coil.

[0011] By adopting the above-mentioned technical solution, when setting the position of the power switch key, the power switch key is set between the outer peripheral side of the secondary induction coil and the edge of the control circuit board, and the distance S1 between the power switch key and the edge of the control circuit board is greater than the distance S2 between the power switch key and the outer peripheral side of the secondary induction coil, thereby reducing the distance between the power switch key and the edge of the control circuit board. When the power switch key is triggered, the edge of the control circuit board is deformed due to the close distance, which may cause damage to the control circuit board.

[0012] Furthermore, the control circuit board is provided with a mounting hole for fixing the control circuit board, the distance between the power switch and the mounting hole is D1, the distance between the mounting hole and the secondary induction coil is D2, and D2>D1.

[0013] By adopting the above-mentioned technical solution, the distance D1 between the power switch key and the mounting hole is smaller than the distance D2 between the mounting hole and the primary induction coil. After the control circuit board is fastened through the mounting hole, the strength of the control circuit board near the mounting hole is higher, and the power switch key is relatively close to the mounting hole on the control circuit board, thereby reducing the possibility of large deformation of the control circuit board and difficulty in recovery due to the need for greater force when pressing the power switch key.

[0014] Furthermore, the power switch is located between the secondary induction coil and the mounting hole.

[0015] By adopting the above-mentioned technical solution, the power switch key is installed between the secondary induction coil and the mounting hole, so that the power switch key is close to the mounting hole and located on the outer peripheral side of the secondary induction coil, but not too close to the edge of the control circuit board, thereby reducing the possibility of deformation or damage of the control circuit board when the power switch key is triggered.

[0016] Furthermore, the secondary induction coil is provided with a lead wire extending outward, and the power switch avoids the lead wire in the circumferential direction of the secondary induction coil.

[0017] By adopting the above-mentioned technical solution, the secondary induction coil and the control circuit board are connected by leads extending outward to realize electrical connection between the control circuit board and the secondary induction coil. When the power switch key is installed on the control circuit board, the power switch key avoids the leads to avoid bending or breaking of the leads due to squeezing the leads when pressing the power switch key.

[0018] Furthermore, the inner wall of the rear side of the shell is provided with a first positioning ring for positioning the secondary induction coil, the first positioning ring extends toward the control circuit board and covers the secondary induction coil, and the first positioning ring is provided with a lead notch for the lead wire to pass through.

[0019] By adopting the above-mentioned technical solution, when the outer shell cover is arranged on the control circuit board, the first positioning ring extends toward the secondary induction coil and covers the secondary induction coil, thereby positioning the secondary induction coil in the radial and circumferential directions, reducing the possibility of the secondary induction coil detaching from the control circuit board, and a lead notch is provided on the first positioning ring to prevent the first positioning ring from abutting against the lead wire, causing the lead wire to bend or break.

[0020] Furthermore, a magnet is provided on the side of the shell facing the control circuit board, and multiple magnets are distributed around the circumference of the secondary induction coil, and the power switch is located between two adjacent magnets; and / or, a stop rib is provided on the inner side wall of the shell facing the control circuit board, and a stop notch is provided on the outer side wall of the control circuit board, and the stop rib cooperates with the stop notch to achieve fool-proof installation of the control circuit board and the shell.

[0021] By adopting the above technical solution, when the knob device is fixed on the panel of the device to be installed, the knob device is fixed on the panel of the device to be installed by the magnet on the inner side of the shell adsorbing and the magnetic suction part on the device to be installed. When it needs to be removed, the knob device is removed from the surface to be installed by overcoming the magnetic attraction. The adsorption of the magnet and the magnetic suction part facilitates the fixing and removal of the knob device. When the magnet is adsorbed, the multiple magnets distributed on the circumference reduce the deviation of the knob device from the adsorbed position during adsorption and affect the inductive charging efficiency. The power switch key is between two adjacent magnets, so that the power switch key is at a weaker magnetic field of the two adjacent magnets, reducing the influence of the magnetic field of the magnet on the power switch key containing metal material, thereby reducing the abnormal heating of the power switch key. The knob is usually set to be circular in appearance due to various factors such as aesthetics. When the control circuit board is on the inner side of the shell, the control circuit board is limited to rotate relative to the shell by the anti-rotation notch and the anti-rotation rib before it is completely fixed, so as to avoid the control circuit board from deviating from the installation position after being fixed; and the anti-rotation notch and the anti-rotation rib prevent the power switch button from being misaligned with the power switch key.

[0022] Furthermore, a second positioning ring is provided on the side of the housing facing the control circuit board, the second positioning ring extends toward the control circuit board, the magnet is arranged in the second positioning ring and the outer peripheral wall of the magnet cooperates with the inner peripheral wall of the second positioning ring to stabilize the magnet.

[0023] By adopting the above-mentioned technical solution, a second positioning ring is set on the outer shell to facilitate the positioning and installation of the magnet. When the magnet is installed in the second positioning ring, the outer peripheral wall of the magnet cooperates with the inner peripheral wall of the second positioning ring to stabilize the magnet and reduce the possibility of the magnet falling off the outer shell.

[0024] Furthermore, a circular anti-skid pad is provided on the rear side of the shell, and the power switch button is located on the inner circle side of the anti-skid pad; and / or, the shell is provided with a through hole, the control circuit board is provided with a fastening hole, the first fastener passes through the through hole and is threadedly connected to the fastening hole to fix the control circuit board on the shell, and the anti-skid pad blocks the through hole and the first fastener on the outside of the shell.

[0025] By adopting the above-mentioned technical solution, when the knob device is adsorbed on the panel of the equipment to be installed, the anti-slip pad reduces the possibility of the knob device sliding relative to the equipment to be installed, reduces the noise when the knob device is attracted, and covers the screw assembly marks on the shell; when installing the shell and the control circuit board, the first fastener passes through the through hole and is threadedly connected to the fastening hole, thereby fastening the shell and the control circuit board together, reducing the possibility of the shell and the control circuit board being detached, and the anti-slip pad also covers the through hole, reducing the impact of the through hole on the appearance of the rear side of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below in conjunction with the accompanying drawings:

[0027] Figure 1 It is an overall schematic diagram of a knob device of the present invention;

[0028] Figure 2 It is a structural schematic diagram of the control circuit board and the power switch key in the present invention;

[0029] Figure 3 A schematic diagram of the distribution of the secondary induction coil, the power switch key and the mounting hole in the present invention;

[0030] Figure 4 It is a schematic diagram of the structure of the inner side of the shell in the present invention;

[0031] Figure 5 The figure is an exploded schematic diagram of a knob device of the present invention. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] The terms "first", "second", etc. (if any) in the specification and claims of the present invention are used to distinguish similar objects, rather than to describe a specific order or sequence. Even if "second" is used to distinguish before a certain technical feature, it does not necessarily indicate that "first" is present. It should be understood that in the present invention, "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. It should be understood that in the present invention, "multiple" refers to two or more. "And / or" is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. "Containing X, Y and Z", "Containing X, Y, Z" means that X, Y, and Z are all included, "Containing X, Y or Z" means that one of X, Y, and Z is included, and "Containing X, Y and / or Z" means that any one, any two, or three of X, Y, and Z are included.

[0034] The technical solution of the present invention is described in detail with specific embodiments below. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0035] like Figure 1 and Figure 2 As shown, the present invention provides a knob device, including a knob body 1, a housing 2, a control circuit board 3 hidden between the housing 2 and the knob body 1, and a power switch button 21 arranged on the outer surface of the housing 2, a power switch key 32 is arranged on the control circuit board 3, and the power switch button 21 and the power switch key 32 are distributed on the inner and outer sides of the housing 2 and are arranged correspondingly along the axial direction of the housing 2, so that the power switch key 32 is triggered after pressing the power switch button 21 on the outer side of the housing 2, so as to turn on the knob device when in use, and when the knob is not in use, the power switch key 32 is pressed by the power switch button 21 to turn off the knob device, so as to avoid the knob in the standby state consuming power and affecting the endurance of the knob. The control circuit board 3 is provided with a secondary induction coil 31, and the secondary induction coil 31 charges the knob body 1 after induction with the magnetic field of the charging component.

[0036] In order to avoid placing the power switch key 32 at the center of the control circuit board 3, so that the power switch key 32 is at the center of the secondary induction coil 31, resulting in the power switch key 32 being located at the center of the magnetic field of the charging component, so that the power switch key 32 containing metal material generates an induced current under the action of the magnetic field and then generates abnormal heat, thereby affecting the charging efficiency of the knob; in this embodiment, Figure 2 and Figure 3As shown, in order to reduce the possibility of abnormal heating of the power switch key 32 containing metal material or affecting the charging efficiency of the knob, the power switch key 32 is arranged on the periphery of the secondary induction coil 31, that is, the power switch key 32 is arranged on the control circuit board 3 except the secondary induction coil 31; the influence of the induced magnetic field of the charging component on the power switch key 32 containing metal material is weakened, thereby reducing the induced current generated in the power switch key 32, reducing the temperature of abnormal heating of the power switch key 32, and thus improving the charging efficiency of the knob.

[0037] In this embodiment, if Figure 3 As shown, after the power switch key 32 deviates from the secondary induction coil 31, the distance S1 between the power switch key 32 and the edge of the control circuit board 3 is greater than the distance S2 between the power switch key 32 and the outer peripheral side of the secondary induction coil 31. It should be noted that S1 here is the minimum value of the distance between the center position of the power switch key 32 and the edge of the control circuit board 3, and S2 here is also the minimum value of the distance between the center position of the power switch key 32 and the outer peripheral side of the secondary induction coil 31. When installing the power switch key 32, S1>S2, to avoid the power switch key 32 being too close to the edge of the control circuit board 3, resulting in the possibility that the edge of the control circuit board 3 is deformed due to the pressing force after the power switch key 32 is triggered.

[0038] In another embodiment, if Figure 4 and Figure 5 As shown, in order to improve the installation strength of the control circuit board 3 and stably trigger the power switch key 32, the knob body 1 includes an intermediate bracket 11 and a rotating shell 12. An encoder 13 for adjusting the knob function is provided on the inner wall of the rotating shell 12. The encoder 13 is rotatably connected to the knob shell 2. The intermediate bracket 11 is fixed on the inner ring of the encoder 13. The intermediate bracket 11 is rotatably provided on the encoder 13. The control circuit board 3 is provided with a mounting hole 33. The control circuit board 3 is stably connected to the encoder 13 through a first fixing member to prevent the control circuit board 3 and the encoder 13 from rotating relative to each other and affecting the charging effect of the secondary induction coil 31.

[0039] In this embodiment, if Figure 3As shown, the distance between the center of the power switch key 32 and the center of the mounting hole 33 is D1, and the distance between the mounting hole 33 and the secondary induction coil 31 is D2, where D2 is the minimum distance between the mounting hole 33 and the peripheral side wall of the secondary induction coil 31, D2>D1, so that the power switch key 32 is closer to the mounting hole 33 relative to the peripheral side wall of the secondary induction coil 31. When the first fixing member passes through the mounting hole 33 to fasten the control circuit board 3, the strength around the mounting hole 33 is high. When the power switch button 21 is pressed to trigger the power switch key 32, the control circuit board 3 is not easily deformed, and thus Reduce the possibility of damage to the control circuit board 3 due to deformation caused by pressing; the first fixing part is usually a screw, and the screw usually contains metal material. When the first fixing part passes through the mounting hole 33 to fasten the control circuit board 3, in order to avoid the metal material contained in the first fixing part affecting the charging efficiency of the knob, the mounting hole 33 on the control circuit board 3 deviates from the secondary induction coil 31, and the mounting hole 33 is located on the outside of the secondary induction coil 31, so that the first fixing part deviates from the secondary induction coil 31, reduces the temperature of the first fixing part abnormally heated under the influence of the induced magnetic field of the charging component, and reduces the influence of the first fixing part on the charging efficiency of the knob.

[0040] like Figure 3 As shown, a magnetic shielding sheet 312 is provided on the side of the secondary induction coil 31 facing away from the charging component. The magnetic shielding sheet 312 blocks the influence of the induced magnetic field of the charging component on the metal material in the knob, thereby reducing the abnormal heat generation of the knob during the charging process, thereby improving the charging efficiency of the knob.

[0041] In order to avoid the possibility that the edge of the control circuit board 3 may be lifted due to pressing the power switch key 32, the power switch key 32 is located between the secondary induction coil 31 and the mounting hole 33 to avoid the distance between the power switch key 32 and the edge of the control circuit board 3 being too small, causing the control circuit board 3 to be lifted when the power switch key 32 is pressed.

[0042] The secondary induction coil 31 is provided with a lead 311 extending outward, and the power switch key 32 avoids the lead 311 in the circumferential direction of the control circuit board 3 to avoid pressing on the lead 311 when the power switch key 32 is pressed, causing the lead 311 to be bent or broken.

[0043] In order to facilitate the disassembly and fixation of the knob device, the knob is attracted to the panel of the device by magnetic attraction. Specifically, a magnet 26 is provided on the side of the housing 2 facing the control circuit board 3, and a magnetic attraction member is provided in the wireless charging component on the side of the panel of the device to be installed away from the knob. The knob is fixed by the attraction of the magnet 26 and the magnetic attraction member, and it is also convenient to remove the knob from the panel. In order to reduce the influence of the magnetic field of the magnet 26 on the inductive charging of the secondary induction coil 31, the magnet 26 is usually set away from the secondary induction coil. In this embodiment, the secondary induction coil 31 is installed at the geometric center of the control circuit board 3, and the magnet 26 deviates from the geometric center position of the control circuit board 3 and is located on the outer peripheral side of the secondary induction coil 31. After the magnet 26 deviates from the center of the control circuit board 3, in order to prevent the knob from deviating from the wireless charging component on the panel and affecting the inductive charging, a plurality of magnets 26 are distributed around the circumference of the secondary induction coil 31. The plurality of magnets 26 are evenly distributed and attracted in axial correspondence with the magnetic attraction member in the wireless charging component, ensuring that when the magnet 26 is attracted to the magnetic attraction member, the secondary induction coil 31 is axially corresponding to the wireless charging component to inductively charge the knob.

[0044] like Figure 4 As shown, in order to improve the stability of the magnet 26 after installation, a second positioning ring 24 is provided on the side of the housing 2 facing the control circuit board 3, and the second positioning ring 24 extends toward the control circuit board 3. The magnet 26 is arranged in the second positioning ring 24 after being on the housing 2, and the inner peripheral wall of the second positioning ring 24 cooperates with the outer peripheral wall of the magnet 26 to stabilize the magnet 26 and position the magnet 26 circumferentially.

[0045] To prevent the control circuit board 3 from rotating relative to the housing 2 or the knob body 1 during installation, Figure 3 and Figure 4 As shown, the inner wall of the housing 2 on the side facing the control circuit board 3 is provided with a anti-rotation rib 27, and the outer side wall of the control circuit board 3 is provided with a anti-rotation notch 35. The anti-rotation notch 35 cooperates with the anti-rotation rib 27 to achieve fool-proof installation of the control circuit board 3 and the housing 2, thereby preventing the control circuit board 3 from rotating relative to the housing 2 or the knob body 1 during installation, and further preventing the control circuit board 3 from deviating from the predetermined installation orientation and causing the power switch button 21 and the power switch key 32 to be misaligned.

[0046] In order to improve the stability of the connection between the shell 2 and the control circuit board 3, the shell 2 is provided with a through hole 22, and the control circuit board 3 is provided with a fastening hole 34 corresponding to the through hole 22. When the anti-rotation rib 27 and the anti-rotation notch 35 cooperate to stop rotation, the first fastener passes through the through hole 22 and is threadedly connected with the fastening hole 34 to fix the control circuit board 3 on the shell 2, thereby improving the stability of the connection between the shell 2 and the control circuit board 3.

[0047] like Figure 4 and Figure 5The knob can be removed from the panel of the device to be installed. After the knob is removed, the through hole 22 opened for fastening the shell 2 and the control circuit board 3 has assembly traces of the through hole 22 and the first fastener on the rear side of the shell 2, affecting the overall appearance of the knob. In order to shield the assembly traces of the through hole 22 and the first fastener on the rear side of the shell 2, an annular receiving groove 251 is provided on the side of the shell 2 facing away from the control circuit board 3. The through hole 22 is located in the receiving groove 251. An anti-skid pad 25 is embedded in the receiving groove 251. The anti-skid pad 25 shields the assembly traces of the through hole 22 and the first fastener. The assembly traces of the through hole 22 and the first fastener are avoided to affect the aesthetics of the outer side of the housing 2; in addition, the circular anti-skid pad 25 is embedded, and after the knob is adsorbed on the panel, it plays an anti-skid role, reducing the possibility of the knob deviating from the wireless charging component due to sliding; the power switch button 21 is located on the inner circle side of the anti-skid pad 25, so that the corresponding power switch key 32 is located on the inner circle side of the anti-skid pad 25, avoiding the power switch key 32 from being too close to the edge of the control circuit board 3, resulting in the possibility of deformation of the control circuit board 3 when the power switch button 21 and the power switch key 32 are pressed.

[0048] In addition to the above-mentioned preferred embodiments, the present invention also has other implementation modes. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.

Claims

1. A knob device, characterized in that: The invention comprises a knob body, a shell, a control circuit board hidden between the shell and the knob body, and a power switch button arranged on the outer surface of the shell. The control circuit board is provided with a power switch key. The power switch button and the power switch key are arranged correspondingly inside and outside so that pressing the power switch button triggers the power switch key to turn on or off the knob device.

2. The knob device according to claim 1, characterized in that: The control circuit board is provided with a secondary induction coil, and the power switch is located on the outer peripheral side of the secondary induction coil.

3. The knob device according to claim 2, characterized in that: The distance S1 between the power switch key and the edge of the control circuit board is greater than the distance S2 between the power switch key and the outer peripheral side of the secondary induction coil.

4. The knob device according to claim 2, characterized in that: The control circuit board is provided with a mounting hole for fixing the control circuit board, the distance between the power switch and the mounting hole is D1, the distance between the mounting hole and the secondary induction coil is D2, and D2>D1.

5. The knob device according to claim 4, characterized in that: The power switch is located between the secondary induction coil and the mounting hole.

6. The knob device according to claim 2, characterized in that: The secondary induction coil is provided with a lead wire extending outward, and the power switch key avoids the lead wire in the circumferential direction of the secondary induction coil.

7. The knob device according to claim 6, characterized in that: The inner wall at the rear side of the shell is provided with a first positioning ring for positioning the secondary induction coil. The first positioning ring extends toward the control circuit board and covers the secondary induction coil. The first positioning ring is provided with a lead notch for the lead wire to pass through.

8. The knob device according to claim 2, characterized in that: A magnet is provided on the side of the shell facing the control circuit board, and multiple magnets are distributed around the circumference of the secondary induction coil, and the power switch is located between two adjacent magnets; and / or, a stop rib is provided on the inner side wall of the shell facing the control circuit board, and a stop notch is provided on the outer side wall of the control circuit board, and the stop rib cooperates with the stop notch to achieve fool-proof installation of the control circuit board and the shell.

9. The knob device according to claim 8, characterized in that: A second positioning ring is provided on one side of the housing facing the control circuit board. The second positioning ring extends toward the control circuit board. The magnet is arranged in the second positioning ring and the outer peripheral wall of the magnet cooperates with the inner peripheral wall of the second positioning ring to stabilize the magnet.

10. The knob device according to claim 1, characterized in that: A circular anti-skid pad is provided on the rear side of the shell, and the power switch button is located on the inner circle side of the anti-skid pad; and / or, the shell is provided with a through hole, the control circuit board is provided with a fastening hole, the first fastener passes through the through hole and is threadedly connected to the fastening hole to fix the control circuit board on the shell, and the anti-skid pad blocks the through hole and the first fastener on the outside of the shell.

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