Mode switching method of smart watch and integrated anti-shielding magnetic coding switch structure

Abstract

The present disclosure provides a mode switching method for a smart watch and an integrated anti-shielding magnetic coding switch structure. The above-mentioned mode switching method for a smart watch collects the number of on-off times of the closed anti-shielding magnetic flux of the magnet; the collection area of ​​the on-off times of the closed anti-shielding magnetic flux is located in the closed anti-shielding area; detects whether the on-off times of the closed anti-shielding magnetic flux match the preset on-off times; when the on-off times of the magnetic flux match the preset on-off times, outputs function execution information to the FPC chip; wherein the function execution information corresponds to the information of the preset on-off times. This method can accurately collect the on-off times of the closed anti-shielding magnetic flux of the magnet, effectively shield the magnetic flux interference of the magnetic charging interface and the external wireless charging coil on the magnet and the magnetoresistive sensor, and is particularly suitable for the application of smart watches with built-in magnetic charging interfaces in wireless charging situations.

Description

Technical Field

[0001] The present disclosure relates to the technical field of smart watches, and in particular to a mode switching method for smart watches and an integrated anti-shielding magnetic coding switch structure. Background Art

[0002] With the continuous development of smart watches, in addition to displaying time, it has also added functions such as taking pictures, WeChat, sports, measuring electrocardiograms, blood pressure or blood sugar, making smart watches more and more functional, resulting in an increase in the number of buttons for switching between different functional modes. If the traditional button method is used, there is a problem of complex structure. For this reason, there is a smart host with a multifunctional crown such as Chinese patent document number CN111752138B on the market. It feeds back a second signal to the main board when the Hall sensor is in contact with the magnet. Specifically, when the button is in the second state, the magnet rotates and causes the magnetic field around the Hall sensor to change to feed back a second signal to the Hall sensor, so as to realize functions such as page turning, scrolling, and zooming in or out of the display screen, so that one crown structure can realize the functions of multiple buttons, effectively reducing the number of buttons on the smart host, thereby reducing the volume of the entire smart host and reducing the production difficulty and production cost of the smart host. In addition, the multifunctional crown has a simple structure, is easy to produce and assemble, and has strong feasibility.

[0003] It can be seen that the above-mentioned smart host can effectively solve the problem of complex structure due to the large number of traditional buttons. However, for some smart watches with built-in magnetic charging ports, the built-in magnetic charging port will interfere with the Hall sensor, causing inaccurate information collection by the Hall sensor, especially when encountering strong external magnetic interference, such as in the case of wireless charging, the Hall sensor will have problems of false triggering or failure, resulting in the user being unable to smoothly switch between different functional modes of the watch under wireless charging conditions. Summary of the invention

[0004] The purpose of the present disclosure is to overcome the shortcomings of the prior art and provide a method for effectively shielding the magnetic flux interference of a magnetic charging interface and an external wireless charging coil on a magnet and a magnetoresistive sensor, thereby ensuring that the magnetoresistive sensor can accurately collect the number of times the closed anti-shielding magnetic flux of the magnet is on and off, and effectively avoiding the problem of false triggering or failure of the magnetoresistive sensor, so as to ensure that the user can smoothly switch between different functional modes in the smart watch, and is particularly suitable for a mode switching method and an integrated anti-shielding magnetic coding switch structure for smart watches with a built-in magnetic charging interface used in wireless charging conditions.

[0005] The purpose of this disclosure is achieved through the following technical solutions:

[0006] A mode switching method for a smart watch, the smart watch comprising a dial, an integrated anti-shielding magnetic coding switch structure and a control mainboard, wherein a magnetic charging interface is arranged in the dial; the integrated anti-shielding magnetic coding switch structure comprises a knob, a magnet, a touch switch, a magnetoresistive sensor, an FPC and a split shielding cover; the knob is at least partially rotatably arranged in the dial, the magnet is located in the dial and connected to the rotating shaft of the knob, and the rotating shaft is used to slide and abut with the touch switch for conduction; the touch switch is arranged on the FPC chip and is insulated and separated from the FPC chip; the magnetoresistive sensor is electrically connected to the FPC chip, and the split shielding cover forms a closed anti-shielding area, and the closed anti-shielding area is used to accommodate the FPC chip, the magnetoresistive sensor and the magnet; the control mainboard is arranged in the dial and electrically connected to the FPC;

[0007] The mode switching method of the smart watch comprises the following steps:

[0008] S110, collecting the number of on-off times of the closed anti-shielding magnetic flux of the magnet; wherein the collection area of ​​the closed anti-shielding magnetic flux on-off times is located in the closed anti-shielding area;

[0009] S120, detecting whether the on-off times of the closed anti-shielding magnetic flux match the preset on-off times;

[0010] S130. When the magnetic flux on-off times matches the preset on-off times, outputting function execution information to the FPC chip; wherein the function execution information corresponds to the information of the preset on-off times.

[0011] In one embodiment, before step S110, the following step is further included: pressing down the rotating shaft so that the rotating shaft touches and abuts against the touch switch.

[0012] In one embodiment, the function execution information includes screen lighting information, function page switching information, page scrolling information or screen zooming information.

[0013] In one embodiment, the split shielding cover includes a first shielding sub-cover and a second shielding sub-cover, the first shielding sub-cover is arranged on the outside of the chip, the second shielding sub-cover is arranged on the outside of the magnet, and the second shielding sub-cover is buckled with the first shielding sub-cover.

[0014] In one embodiment, the split shielding cover further includes a shielding soft and hard adhesive sticker, the shielding soft and hard adhesive sticker is located between the first shielding sub-cover and the second shielding sub-cover, and the shielding soft and hard adhesive sticker is used to seal the gap between the first shielding sub-cover and the second shielding sub-cover.

[0015] In one embodiment, the magnetoresistive sensor is integrated on the chip, and the shielding soft and hard adhesive sticker includes a first shielding soft and hard adhesive sticker and a second shielding soft and hard adhesive sticker, the first shielding soft and hard adhesive sticker is embedded in the first surface of the FPC; the second shielding soft and hard adhesive sticker is embedded in the second surface of the FPC; a line lead-out portion is formed in the middle of the FPC, and a first mounting hole is formed in the blank area of ​​the line lead-out portion, the buckle of the first shielding sub-cover is arranged in a one-to-one correspondence with the first mounting hole, and the first shielding soft and hard adhesive sticker and the second shielding soft and hard adhesive sticker are respectively formed with a second mounting hole and a third mounting hole at the positions corresponding to the buckle, and the second shielding sub-cover is formed with a fourth mounting hole, and the buckle passes through the second mounting hole, the first mounting hole, the third mounting hole and the fourth mounting hole in sequence, and is buckled into the fourth mounting hole; and / or,

[0016] The shielding soft and hard adhesive sticker comprises a shielding sheet and a silicone layer wrapped around the outer peripheral wall of the shielding sheet, and the silicone layer is respectively in sealing contact with the first shielding sub-cover and the second shielding sub-cover.

[0017] In one of the embodiments, the split shielding cover is prepared by pressing and sintering iron (Fe) powder and nickel (Ni) powder in a weight ratio of (1.8~2.5):1, wherein the pressing pressure is 100Bar~150Bar, and the sintering temperature is 1000℃~1500℃.

[0018] An integrated anti-shielding magnetic coding switch structure is used to be electrically connected to a control mainboard of a smart watch. The integrated anti-shielding magnetic coding switch structure and the control mainboard jointly execute the mode switching method of the smart watch described in any of the above embodiments.

[0019] In one embodiment, a cavity is formed in the dial, a mounting area is formed in the cavity, a mounting portion is formed in the mounting area, and the first shielding sub-cover is detachably connected to the mounting portion; and / or,

[0020] A first shielding cavity is formed in the first shielding sub-cover, and a first sleeve interface and a first rotating hole are respectively formed at two ends of the first shielding cavity, the first sleeve interface is arranged opposite to the first rotating hole, the first end of the rotating shaft passes through the first rotating hole and extends into the first shielding cavity, and is connected to the touch switch, the magnet is sleeved on the outer peripheral wall of the first end of the rotating shaft, and the magnet is separated and insulated from the FPC chip by a plastic shell, and two buckles are formed at the end of the first sleeve interface.

[0021] In one embodiment, the assembly method of the integrated anti-shielding magnetic coding switch structure comprises the following steps:

[0022] Assemble a magnet, a touch switch, a plastic shell, a magnetoresistive sensor, and an FPC to form an assembly; wherein the magnet is located in the plastic shell, and the magnetoresistive sensor is disposed on the FPC chip;

[0023] Putting a shielding soft and hard adhesive sticker on the outer periphery of the FPC chip; and

[0024] Sleeving the first shielding sub-cover on the plastic shell; and,

[0025] The second shielding sub-cover is sleeved on the outer peripheral wall of the bottom of the FPC chip to obtain a product to be pressed;

[0026] Performing a pressing operation on the product to be pressed so that the buckle of the first shielding sub-cover is at least partially exposed outside the second shielding sub-cover;

[0027] The exposed buckle is bent and fixed to obtain the integrated anti-shielding magnetic coding switch structure.

[0028] Compared with the prior art, the present invention has at least the following advantages:

[0029] Since the split shielding cover forms a closed anti-shielding area, the closed anti-shielding area is used to accommodate the FPC chip, the magnetoresistive sensor and the magnet, so that the magnetoresistive sensor can accurately collect the number of times the closed anti-shielding magnetic flux of the magnet is on and off, and effectively shields the magnetic flux interference of the magnetic charging interface and the external wireless charging coil on the magnet and the magnetoresistive sensor, effectively avoiding the problem of false triggering or failure of the magnetoresistive sensor, so as to ensure that the user can smoothly switch between different functional modes in the smart watch, which is particularly suitable for the application of smart watches with built-in magnetic charging interfaces in wireless charging conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A flowchart of a mode switching method for a smart watch according to an embodiment of the present invention;

[0032] Figure 2 A schematic diagram of a structure of a smart watch in one direction according to an embodiment of the present invention;

[0033] Figure 3 for Figure 2 A partial cross-sectional view of the smart watch in one direction;

[0034] Figure 4 for Figure 3 A partial enlarged view of point A shown;

[0035] Figure 5 It is a structural schematic diagram of one direction of an integrated anti-shielding magnetic coding switch structure according to an embodiment of the present invention;

[0036] Figure 6 It is a schematic structural diagram of a part of an integrated anti-shielding magnetic coding switch structure in one direction according to an embodiment of the present invention;

[0037] Figure 7 for Figure 6 A partial cross-sectional view of the integrated anti-shielding magnetic encoding switch structure in one direction;

[0038] Figure 8 A partial cross-sectional view of an integrated anti-shielding magnetic coding switch structure in one direction according to another embodiment of the present invention;

[0039] Fig. 9 for Figure 8 A partial enlarged view of point B shown;

[0040] Fig.10 It is a schematic structural diagram of a second shielding sub-cover in one direction according to an embodiment of the present invention;

[0041] Fig.11 The figure is a schematic structural diagram of a first shielding sub-cover in one direction according to an embodiment of the present invention.

[0042] Figure numerals: 1, smart watch; 10, integrated anti-shielding magnetic coding switch structure; 20, dial; 21, magnetic charging interface; 22, cavity; 23, installation area; 24, installation part; 25, second rotating hole; 100, knob; 110, rotating head; 120, rotating shaft; 200, magnet; 300, touch switch; 400, FPC; 410, FPC chip; 420, first embedded cavity; 430, first mounting hole; 440, second embedded cavity; 500, split shielding cover; 510, closed anti-shielding area; 52 0. First shielding sub-cover; 521. Buckle; 522. First shielding cavity; 5221. First set of interfaces; 5222. First rotating hole; 523. Mounting ear; 530. Second shielding sub-cover; 531. Fourth mounting hole; 532. Second shielding cavity; 5321. Second set of interfaces; 541. First shielding soft and hard glue sticker; 5411. First shielding thin sub-sheet; 5412. First silicone sub-layer; 542. Second shielding soft and hard glue sticker; 5421. Second shielding thin sub-sheet; 5422. Second silicone sub-layer; 600. Plastic shell. DETAILED DESCRIPTION

[0043] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0044] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present disclosure belongs. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0046] The present disclosure provides a mode switching method for a smart watch, wherein the smart watch comprises a dial, an integrated anti-shielding magnetic coding switch structure and a control mainboard, wherein a magnetic charging interface is arranged in the dial; the integrated anti-shielding magnetic coding switch structure comprises a knob, a magnet, a touch switch, a magnetoresistive sensor, an FPC and a split shielding cover; the knob is at least partially rotatably arranged in the dial, the magnet is located in the dial and is connected to the rotating shaft of the knob, and the rotating shaft is used for slidingly contacting and conducting with the touch switch; the touch switch is arranged on the FPC chip and is insulated and separated from the FPC chip; the magnetoresistive sensor is electrically connected to the FPC chip, and the split shielding cover forms a closed The anti-shielding area is used to accommodate the FPC chip, the magnetoresistive sensor and the magnet; the control mainboard is arranged in the dial and electrically connected to the FPC; the mode switching method of the smart watch comprises the following steps: S110, collecting the on-off times of the closed anti-shielding magnetic flux of the magnet; wherein, the collection area of ​​the on-off times of the closed anti-shielding magnetic flux is located in the closed anti-shielding area; S120, detecting whether the on-off times of the closed anti-shielding magnetic flux match the preset on-off times; S130, when the on-off times of the magnetic flux match the preset on-off times, outputting function execution information to the FPC chip; wherein, the function execution information corresponds to the information of the preset on-off times.

[0047] Since the split shielding cover forms a closed anti-shielding area, the closed anti-shielding area is used to accommodate the FPC chip, the magnetoresistive sensor and the magnet, so that the magnetoresistive sensor can accurately collect the number of times the closed anti-shielding magnetic flux of the magnet is on and off, and effectively shields the magnetic flux interference of the magnetic charging interface and the external wireless charging coil on the magnet and the magnetoresistive sensor, effectively avoiding the problem of false triggering or failure of the magnetoresistive sensor, so as to ensure that the user can smoothly switch between different functional modes in the smart watch, which is particularly suitable for the application of smart watches with built-in magnetic charging interfaces in wireless charging conditions.

[0048] In order to better understand the technical solutions and beneficial effects of the present disclosure, the present disclosure is further described in detail below in conjunction with specific embodiments. A mode switching method of a smart watch 1 based on an anti-shielding switch magnetic encoding integrated sensor is used to be executed in the smart watch 1 to achieve switching of the screen or function page of the smart watch 1.

[0049] Specifically, see Figures 2 to 4The smart watch 1 includes a dial 20, an integrated anti-shielding magnetic coding switch structure 10 and a control mainboard. The dial 20 is provided with a magnetic charging interface 21. The additional magnetic charging interface 21 facilitates the user to quickly complete the docking operation between the magnetic charging interface 21 and the wireless charging coil; the integrated anti-shielding magnetic coding switch structure 10 includes a knob 100, a magnet 200, a touch switch 300, a magnetic resistance sensor (not shown), an FPC 400 and a split shielding cover 500; the knob 100 is at least partially The dial 20 is provided with a magnet 200 which is located in the dial 20 and connected to the rotating shaft 120 of the knob 100. The magnet 200 can rotate with the rotation of the rotating shaft 120 to obtain the number of times the closed anti-shielding magnetic flux of the magnet 200 is turned on and off; and since the rotating shaft 120 is used to slide and abut against the touch switch 300 for conduction; the touch switch 300 is provided on the FPC chip 410 and is insulated and separated from the FPC chip 410; when the rotating shaft 120 is turned on, the magnet 200 can rotate with the rotating shaft 120 to obtain the number of times the closed anti-shielding magnetic flux of the magnet 200 is turned on and off; and since the rotating shaft 120 is used to slide and abut against the touch switch 300 for conduction; and the touch switch 300 is provided on the FPC chip 410 and is insulated and separated from the FPC chip 410; When the touch switch 20 is in the pressed state, the rotating shaft 120 touches and contacts the touch switch 300, realizing the electrical connection between the touch switch 300 and the FPC chip 410, so that the touch switch 300 can transmit information to the FPC chip 410, and then the information is processed by the FPC chip 410 and sent to the control main board (not shown). The magnetic resistance sensor is electrically connected to the FPC chip 410, realizing the signal transmission between the magnetic resistance sensor and the FPC chip 410; the split shielding cover 500 is respectively arranged on the magnetic The split shielding cover 500 is formed with a closed anti-shielding area 510 for accommodating the FPC chip 410, the magnetoresistive sensor and the magnet 200; the magnetic flux interference of the magnetic charging interface 21 and the external wireless charging coil on the magnet 200 and the magnetoresistive sensor is reduced; the control main board is arranged in the dial 20 and is electrically connected to the FPC 400; the electrical signal transmission between the FPC 400 and the control main board is realized.

[0050] like Figure 1As shown, the present disclosure also provides a mode switching method for a smart watch 1 based on an anti-shielding switch magnetic encoding integrated sensor, including: first, collecting the number of on-off times of a closed anti-shielding magnetic flux of the magnet 200; wherein, the collection area of ​​the on-off times of the closed anti-shielding magnetic flux is located in the closed anti-shielding area 510; then, detecting whether the on-off times of the closed anti-shielding magnetic flux match the preset on-off times; when the on-off times of the magnetic flux match the preset on-off times, outputting function execution information to the FPC chip 410; wherein, the function execution information corresponds to the information of the preset on-off times, so as to accurately collect the on-off times of the closed anti-shielding magnetic flux of the magnet 200, effectively avoiding the problem of false triggering or failure of the magnetoresistive sensor, so as to ensure that the user can smoothly switch between different functional modes in the smart watch 1, and is particularly suitable for the application of a smart watch 1 with a built-in magnetic charging interface 21 in a wireless charging situation.

[0051] In this embodiment, there is no fluctuation of magnetic flux in the 360° detection within the closed anti-shielding area 510 , which indicates that the closed anti-shielding area 510 of the present disclosure has a good anti-shielding effect.

[0052] In one embodiment, an integrated anti-shielding magnetic coding switch structure 10 and the control mainboard are used to jointly execute the mode switching method of the anti-shielding switch magnetic coding integrated sensor smart watch 1.

[0053] like Figure 1 As shown, in one embodiment, the mode switching method of the anti-shielding switch magnetic encoding integrated sensor smart watch 1 includes some or all of the following steps:

[0054] S110, collecting the number of times the closed anti-shielding magnetic flux of the magnet 200 is on and off; wherein, the collection area for the number of times the closed anti-shielding magnetic flux is on and off is located in the closed anti-shielding area 510, so that the magnetoresistive sensor located in the closed anti-shielding area 510 can accurately collect the number of times the closed anti-shielding magnetic flux of the magnet 200 is on and off, effectively avoiding the problem of false triggering or failure of the magnetoresistive sensor, so as to ensure that the user can smoothly switch between different functional modes in the smart watch 1, and is particularly suitable for the application of the smart watch 1 with a built-in magnetic charging interface 21 in the case of wireless charging.

[0055] In this embodiment, the number of times the closed anti-shielding magnetic flux of the magnet 200 is turned on and off refers to the number of times the magnet 200 is in the state of having a magnetic field or not during the process of the magnetic field changing.

[0056] S120, detecting whether the number of on-off times of the closed anti-shielding magnetic flux matches the preset number of on-off times. In this embodiment, the information of the number of on-off times of the closed anti-shielding magnetic flux is processed by the FPC chip 410 and fed back to the control main board, and then the control main board compares the number of on-off times of the closed anti-shielding magnetic flux with the preset number of on-off times to see whether they are consistent.

[0057] S130. When the magnetic flux on-off times match the preset on-off times, function execution information is output to the FPC chip 410; wherein the function execution information corresponds to the information of the preset on-off times, so as to realize the switching of different modes of the smart watch 1.

[0058] The above-mentioned mode switching method of the smart watch 1 based on the anti-shielding switch magnetic encoding integrated sensor, since the split shielding cover 500 forms a closed anti-shielding area 510, the closed anti-shielding area 510 is used to accommodate the FPC chip 410, the magnetoresistive sensor and the magnet 200, so that the magnetoresistive sensor can accurately collect the number of closed anti-shielding magnetic flux on and off times of the magnet 200, effectively shielding the magnetic flux interference of the magnetic charging interface 21 and the external wireless charging coil on the magnet 200 and the magnetoresistive sensor, effectively avoiding the problem of false triggering or failure of the magnetoresistive sensor, so as to ensure that the user can smoothly switch between different functional modes in the smart watch 1, and is particularly suitable for the application of the smart watch 1 with a built-in magnetic charging interface 21 in the case of wireless charging.

[0059] In one embodiment, before step S110, the following step is also included: pressing down the rotating shaft 120 so that the rotating shaft 120 touches and abuts against the touch switch 300 to realize the connection and disconnection of the rotating shaft 120 and the touch switch 300, thereby realizing confirmation of the selected functional mode.

[0060] In one embodiment, the function execution information includes screen light information, function page switching information, page scrolling information or screen zooming information to enrich the functions of the smart watch 1.

[0061] like Figures 5 to 7As shown, in one embodiment, the split shielding cover 500 includes a first shielding sub-cover 520 and a second shielding sub-cover 530, the first shielding sub-cover 520 is arranged on the outside of the chip, and the second shielding sub-cover 530 is arranged on the outside of the magnet 200, and the second shielding sub-cover 530 is buckled with the first shielding sub-cover 520, that is, the split setting of the split shielding cover 500 is realized to ensure that the first shielding sub-cover 520 and the second shielding sub-cover 530 can form a closed anti-shielding area 510 when they are buckled together, so as to buckle the FPC chip 410, the magnetoresistive sensor, and the magnet 200 in the closed anti-shielding area 510, effectively shielding the magnetic flux interference of the magnetic charging interface 21 or the external wireless charging coil on the magnet 200 and the magnetoresistive sensor, so as to ensure that the magnetoresistive sensor can accurately collect the number of on-off times of the closed anti-shielding magnetic flux of the magnet 200. It is worth mentioning that since the FPC chip 410 is built into the FPC400 with both ends exposed on the FPC400, and the magnet 200 is located above the FPC chip 410, the magnetoresistive sensor is located on the FPC chip, and since the FPC chip 410 also requires a line lead-out portion, the one-piece shielding cover is prone to crushing the line lead-out portion and causing damage to the FPC chip 410. Therefore, the split shielding cover 500 can better solve the problem of crushing the line lead-out portion and is convenient for users to assemble.

[0062] It should be noted that, due to the obstruction of the FPC chip 410, and because the general first shielding sub-cover 520 and the second shielding sub-cover 530 are usually made of metal materials, that is, the first shielding sub-cover 520 and the second shielding sub-cover 530 have relatively large rigidity, if the pressure of the first shielding sub-cover 520 and the second shielding sub-cover 530 during the buckling assembly is too large, it is easy to cause the first shielding sub-cover 520 and the second shielding sub-cover 530 to damage the FPC chip 410. In order to reduce the damage to the FPC chip 410, in actual operation, the first shielding sub-cover 520 and the second shielding sub-cover 530 are usually not pressed on the FPC chip 410 at the same time, that is, there is a certain gap between the first shielding sub-cover 520 and the second shielding sub-cover 530. However, since there is no shielding member in the gap between the first shielding sub-cover 520 and the second shielding sub-cover 530, the strong magnetic interference signal from the outside and the strong magnetic interference signal from the magnetic charging interface 21 in the dial 20 will still enter from the gap, causing the magnetoresistive sensor to still have the problem of inaccurate collection.

[0063] Therefore, if Figure 8As shown, in one embodiment, the split shielding cover 500 also includes a shielding soft and hard adhesive sticker, which is located between the first shielding sub-cover 520 and the second shielding sub-cover 530, and the shielding soft and hard adhesive sticker is used to seal the gap between the first shielding sub-cover 520 and the second shielding sub-cover 530, so that the additional shielding soft and hard adhesive sticker can better seal the gap between the first shielding sub-cover 520 and the second shielding sub-cover 530 on the one hand, effectively avoiding the entry of external strong magnetic interference signals and strong magnetic interference signals of the magnetic charging interface 21 in the dial 20, thereby reducing the probability of inaccurate information collection by the magnetoresistive sensor, and on the other hand, the additional shielding soft and hard adhesive sticker can effectively avoid the problem that the first shielding sub-cover 520 and the second shielding sub-cover 530 damage the FPC chip 410 due to excessive pressure of the snap-fit ​​assembly, effectively reducing the probability of crushing the FPC chip 410 during the snap-fit ​​assembly process.

[0064] It should be noted that if pure soft adhesive stickers are used, the soft adhesive stickers will be squeezed out more severely under the action of a large pressing force, so that there is still a small gap between the first shielding sub-cover 520 and the second shielding sub-cover 530 after the snap-fit ​​assembly, that is, it is impossible to form a closed anti-shielding area 510 with good sealing performance; if only a shielding sheet with relatively high hardness is used, because the shielding sheet is usually a metal sheet, the pressure of the snap-fit ​​assembly of the first shielding sub-cover 520 and the second shielding sub-cover 530 becomes greater, resulting in a greater probability that the first shielding sub-cover 520 and the second shielding sub-cover 530 will damage the FPC chip 410. Therefore, in this embodiment, the shielding soft and hard adhesive tape includes a shielding sheet and a silicone layer wrapped around the outer peripheral wall of the shielding sheet, and the silicone layer is sealed and abutted against the first shielding sub-cover 520 and the second shielding sub-cover 530 respectively. In this way, the shielding sheet can provide better structural support for the silicone layer, and effectively avoid the problem of the silicone layer being squeezed out seriously due to excessive pressure when the first shielding sub-cover 520 and the second shielding sub-cover 530 are fastened and assembled, thereby improving the sealing of the fastening and assembly of the first shielding sub-cover 520 and the second shielding sub-cover 530, and reducing the probability of the first shielding sub-cover 520 and the second shielding sub-cover 530 crushing the FPC chip 410 during the fastening and assembly process.

[0065] like Fig. 9As shown, in one embodiment, the first shielding soft and hard glue sticker 541 includes a first shielding thin sub-sheet 5411 and a first silicone sub-layer 5412, and the first silicone sub-layer 5412 is coated on the outer peripheral wall of the first shielding thin sub-sheet 5411, and the second shielding soft and hard glue sticker 542 includes a second shielding thin sub-sheet 5421 and a second silicone sub-layer 5422, and the second silicone sub-layer 5422 is coated on the outer peripheral wall of the second shielding thin sub-sheet 5421; to ensure that the first shielding sub-cover 520 and the second shielding sub-cover 530 are in the process of buckling and assembling, the first shielding soft and hard glue sticker 541 and the second shielding soft and hard glue sticker 542 can provide better buffering effect, effectively reduce the probability of the FPC chip 410 being crushed, and also ensure the sealing of the first shielding sub-cover 520 and the second shielding sub-cover 530 after buckling and assembly.

[0066] It should be noted that, although the additional shielding soft and hard adhesive stickers can effectively improve the sealing effect of the first shielding sub-cover 520 and the second shielding sub-cover 530 and reduce the probability of crushing the FPC chip 410, the integrated anti-shielding magnetic coding switch structure 10 will cause the problem of higher thickness due to the added shielding soft and hard adhesive stickers, which is not conducive to the development of the lightweight integrated anti-shielding magnetic coding switch structure 10. Therefore, some scholars have thought of embedding the shielding soft and hard adhesive stickers on the FPC400, which can effectively solve the problem of thickening caused by the added shielding soft and hard adhesive stickers. However, in actual applications, since the FPC chip 410 is generally provided with circuits, if a through installation position is directly opened around the FPC chip 410, it will affect the normal operation of the FPC chip 410.

[0067] Therefore, if Fig. 9 As shown, in one embodiment, since the shielding soft and hard glue sticker includes a first shielding soft and hard glue sticker 541 and a second shielding soft and hard glue sticker 542, the first shielding soft and hard glue sticker 541 is embedded in the first surface of the FPC400; the second shielding soft and hard glue sticker 542 is embedded in the second surface of the FPC400; a line lead-out portion is formed in the middle of the FPC400, and a first mounting hole 430 is formed in the blank area of ​​the line lead-out portion, and the buckle 521 of the first shielding sub-cover 520 is arranged in a one-to-one correspondence with the first mounting hole 430, and the first shielding soft and hard glue sticker 541 and the second shielding soft and hard glue sticker 542 are respectively formed with a second mounting hole and a third mounting hole at the position corresponding to the buckle 521, and the second shielding sub-cover 530 is formed with a fourth mounting hole 531, and the buckle 521 passes through the second mounting hole, the first mounting hole 430, the third mounting hole and the fourth mounting hole 531 in sequence, and is buckled in the fourth mounting hole 531.

[0068] It can be understood that, since the first surface of the FPC 400 at the outer periphery of the FPC chip 410 is formed with a first embedding cavity 420, and the second surface of the FPC 400 is formed with a second embedding cavity 440, the first embedding cavity 420 is adapted to the first shielding soft and hard glue sub-sticker 541, and the second embedding cavity 440 is adapted to the second shielding soft and hard glue sub-sticker 542, the user can embed the first shielding soft and hard glue sub-sticker 541 and the second shielding soft and hard glue sub-sticker 542 in the first embedding cavity 420 and the second embedding cavity 440 respectively. In this way, the additional first embedding cavity 420 and the second embedding cavity 440 reduce the additional shielding The problem of high thickness caused by the shielding soft and hard adhesive stickers, especially with the use of the magnetoresistive sensor integrated on the chip, further improves the compactness of the integrated anti-shielding magnetic coding switch structure 10, which is conducive to the development of a lightweight integrated anti-shielding magnetic coding switch structure 10; on the other hand, the first embedding cavity 420 and the second embedding cavity 440 can also provide a better positioning effect for the first shielding soft and hard adhesive sticker 541 and the second shielding soft and hard adhesive sticker 542, which is convenient for users to assemble quickly, thereby improving the buckle assembly efficiency; on the other hand, the added first embedding cavity 420 and the second embedding cavity 440 It can also achieve the limiting effect on the first shielding soft and hard glue sub-sticker 541 and the second shielding soft and hard glue sub-sticker 542, effectively avoiding the problem that the first shielding soft and hard glue sub-sticker 541 and the second shielding soft and hard glue sub-sticker 542 are squeezed out seriously under the action of a large pressing force, and realizes the buckling and sealing setting of the first shielding sub-cover 520, the first shielding soft and hard glue sub-sticker 541, the second shielding soft and hard glue sub-sticker 542 and the second shielding sub-cover 530, so as to ensure that a closed anti-shielding area 510 with high sealing can be formed after buckling and assembly; and because a line lead-out part is formed in the middle of the FPC400, the blank area of ​​the line lead-out part forms There is a first mounting hole 430, so that the buckle 521 passing through the first mounting hole 430 will not damage the circuit of the FPC chip 410. In this way, under the premise of ensuring the normal operation of the FPC chip 410, the problem of high thickness caused by the increase of shielding soft and hard adhesive stickers is also reduced, which is conducive to the development of a lightweight integrated anti-shielding magnetic coding switch structure 10; the first shielding sub-cover 520, the first shielding soft and hard adhesive sticker 541, the second shielding soft and hard adhesive sticker 542 and the second shielding sub-cover 530 are also implemented. The snap-fit ​​sealing setting ensures that a closed anti-shielding area 510 with high sealing is formed after the snap-fit ​​assembly.

[0069] In one of the embodiments, the first shielding soft and hard glue sticker 541 and the second shielding soft and hard glue sticker 542 are respectively flush with the FPC chip 410, that is, the first shielding soft and hard glue sticker 541 is flush with the first embedding cavity 420, and the second shielding soft and hard glue sticker 542 is flush with the second embedding cavity 440, so as to ensure that the thickness of the integrated anti-shielding magnetic coding switch structure 10 will not increase due to the increase of the first shielding soft and hard glue sticker 541 and the second shielding soft and hard glue sticker 542, and also ensure the formation of a closed anti-shielding area 510 with higher sealing, thereby improving the anti-shielding effect of the integrated anti-shielding magnetic coding switch structure 10; and reduce the probability of the FPC chip 410 being crushed during snap-fit ​​assembly.

[0070] It can be understood that since the first shielding soft and hard rubber sticker 541 and the second shielding soft and hard rubber sticker 542 are both provided with the first shielding thin sub-sheet 5411 and the second shielding thin sub-sheet 5421, if the first shielding soft and hard rubber sticker 541 and the second shielding soft and hard rubber sticker 542 are misaligned during the buckling assembly, this will cause the buckle 521 to bring out part of the shielding thin sub-sheet during the buckling assembly process, and the brought out shielding thin sub-sheet is likely to damage the circuit in the blank area of ​​the circuit lead-out part, thereby causing partial damage to the FPC chip 410.

[0071] Therefore, in one of the embodiments, a first preset soft rubber area is formed at the edge of the second mounting hole of the first shielding soft and hard glue sub-sticker 541, and the first preset soft rubber area is not provided with the first shielding thin sub-sheet 5411. At the same time, a second preset soft rubber area is formed at the edge of the second mounting hole of the second shielding soft and hard glue sub-sticker 542, and the second preset soft rubber area is not provided with the second shielding thin sub-sheet 5421. In this way, the additional first preset soft rubber area and the second preset soft rubber area are convenient for the buckle 521 to pass through quickly, and the first preset soft rubber area and the second preset soft rubber area that are brought out have good softness, which effectively avoids the first preset soft rubber area and the second preset soft rubber area being damaged due to the addition of the first shielding thin sub-sheet 5411 and the second shielding thin sub-sheet 5421 inside. 421, which causes the shielding sheet brought out during the buckle 521 snap-fitting assembly process to easily damage the line in the blank area of ​​the line lead-out part, and reduces the penetration force of the buckle 521, and reduces the stress when the buckle 521 passes through the first shielding thin sheet 5411 and the second shielding thin sheet 5421, that is, the first preset soft glue area and the second preset soft glue area can provide a better buffering effect for the buckle 521, and effectively avoid the buckle 521 from being easily bent and deformed due to the high pressure during the buckling assembly process. In severe cases, the buckle 521 is directly stuck in the first mounting hole 430 or the second mounting hole, and directly breaks the line in the blank area of ​​the line lead-out part, causing the FPC chip 410 to be scrapped.

[0072] It can be understood that since the distance of the alignment offset in the actual snap-fit ​​assembly is usually 0.1cm~3cm, if the distance between the outermost edge of the first preset soft glue area and the edge of the second mounting hole is less than 0.1cm, there is still a problem that the alignment offset is large, causing the shielding film to be brought out to easily damage the line in the blank area of ​​the line lead-out part; if the distance between the outermost edge of the first preset soft glue area and the edge of the second mounting hole is greater than 3cm, the area of ​​the first shielding thin film 5411 built into the first shielding soft and hard glue sub-sticker 541 will be smaller, which will cause the first preset soft glue area to easily squeeze out of the first embedding cavity 420 during the snap-fit ​​assembly, resulting in relatively poor sealing between the first preset soft glue area and the first shielding sub-cover 520. Therefore, in one of the embodiments, the distance between the outermost edge of the first preset soft rubber area and the edge of the second mounting hole is 0.1cm~3cm, so as to ensure that the first preset soft rubber area is more appropriately positioned at the first shielding soft and hard rubber sticker 541, that is, a first preset soft rubber area of ​​0.1cm~3cm is formed around the periphery of the second mounting hole. In this way, while solving the problem of the shielding sheet damaging the circuit due to the large alignment offset during rapid assembly, the first preset soft rubber area brought out can be filled in the first mounting hole, so as to improve the sealing of the first mounting hole and effectively prevent external interference information from entering through the first mounting hole and affecting the accuracy of the collection.

[0073] Similarly, the second preset soft glue area has a similar structure to the first preset soft glue area. Specifically, in one embodiment, the distance between the outermost edge of the second preset soft glue area and the edge of the second mounting hole is 0.1 cm to 3 cm, so as to ensure that the second preset soft glue area is more suitable for the position of the second shielding soft and hard glue sub-sticker 542, so that the brought out second preset soft glue area can be filled in the fourth point mounting hole, so as to improve the sealing of the fourth mounting hole, and effectively prevent external interference information from entering from the fourth mounting hole and affecting the accuracy of the collection.

[0074] In a preferred embodiment, the number of the buckles 521, the second mounting hole, the third mounting hole, the first preset soft glue area and the second preset soft glue area is two, so as to ensure that the two buckles 521 can reliably buckle and seal the first shielding soft and hard glue sticker 541 and the second shielding soft and hard glue sticker 542 on the second shielding sub-cover 530, and also improve the compactness of the integrated anti-shielding magnetic coding switch structure 10, and also avoid the problem that the shielding sheet brought out by the first shielding soft and hard glue sticker 541 and the second shielding soft and hard glue sticker 542 is easily damaged by the circuit due to the alignment offset during the buckling assembly, and also effectively avoid the buckle 521 being easily bent and deformed due to the high pressure during the buckling assembly process, causing damage to the FPC chip 410 and failure to complete the buckling assembly.

[0075] In one of the embodiments, the first preset soft rubber area protrudes and shrinks toward the first surface of FPC400 to form a conical positioning ring, and the width of the conical positioning ring gradually increases from the side close to FPC400 to the side away from FPC400. The conical positioning ring is adapted to the first mounting hole 430. The additional conical positioning ring facilitates the user to quickly assemble and fix the first shielding soft and hard rubber sticker 541 in the first mounting hole 430, effectively avoiding the problem of inaccurate positioning between the second mounting hole of the first shielding soft and hard rubber sticker 541 and the first mounting hole 430.

[0076] Similarly, in one of the embodiments, the second preset soft rubber area is protruded toward the second surface of the FPC400 to form a circular positioning ring, which is adapted to the first mounting hole 430. The added circular positioning ring facilitates the user to quickly assemble and fix the second shielding soft and hard rubber sticker 542 in the first mounting hole 430, thereby effectively avoiding the problem of inaccurate positioning between the third mounting hole of the second shielding soft and hard rubber sticker 542 and the first mounting hole 430.

[0077] It can also be understood that if the second preset soft rubber area still uses a conical positioning ring similar to the first preset soft rubber area, since the force during the buckle assembly is from top to bottom, the buckle 521 will face a large resistance to pass through the conical positioning ring of the second preset soft rubber area, which is not conducive to the buckle 521 passing through quickly. In serious cases, it will cause the edge of the fourth mounting hole 531 to bring out a large amount of glue, thus increasing the difficulty of subsequent cleaning. Therefore, in the present disclosure, since the first preset soft rubber area is convex and contracted toward the first surface of FPC400 to form a conical positioning ring, and the second preset soft rubber area is convex toward the second surface of FPC400 to form a circular positioning ring, when the external pressure presses down the assembled first shielding soft and hard glue sub-sticker 541, FPC400, and second shielding soft and hard glue sub-sticker 542, the resistance to the buckle 521 being pressed down is reduced, so that the buckle 521 can quickly pass through the second preset soft rubber area and avoid the problem of glue leakage at the edge of the fourth mounting hole 531.

[0078] It should be noted that, although the additional conical positioning ring and circular positioning ring can effectively avoid the problem of inaccurate positioning between the first shielding soft and hard glue sticker 541, the second shielding soft and hard glue sticker 542 and the first mounting hole 430, if the conical positioning ring or the circular positioning ring is extended too much, it will cause the buckle 521 to easily bring the colloid out of the fourth mounting hole 531 during the buckle assembly process, thereby increasing the difficulty of subsequent cleaning. Therefore, in one of the embodiments, a gap is formed between the conical positioning ring and the circular positioning ring, and the inner wall of the gap is a preset colloid receiving area, so that the colloid of the conical positioning ring or the circular positioning ring squeezed by the buckle 521 can be well squeezed outwardly toward the inner wall of the gap, effectively preventing the colloid from flowing to the outside of the fourth mounting hole 531, thereby effectively reducing the problem that the buckle 521 is easy to bring the colloid out of the fourth mounting hole 531 during the buckle assembly process to increase the difficulty of subsequent cleaning.

[0079] In one of the embodiments, the receiving capacity of the gap is adapted to the deformation of the conical positioning ring and the circular positioning ring, so that the colloid of the conical positioning ring and the circular positioning ring squeezed by the buckle 521 can be completely received by the gap, thereby ensuring that no colloid leaks out of the outside of the fourth mounting hole 531 after the buckle assembly, thereby reducing subsequent colloid cleaning operations.

[0080] like Fig.10 As shown, in one embodiment, the side of the fourth mounting hole 531 is formed with an opening, so as to facilitate the user to snap-fit ​​and assemble.

[0081] In one embodiment, the first silicone sublayer 5412 is a first shielding silicone sublayer, and the second silicone sublayer 5422 is a second shielding silicone sublayer, so as to ensure that the formed closed anti-shielding area 510 has a better anti-shielding effect.

[0082] like Fig.11As shown, in one embodiment, a first shielding cavity 522 is formed in the first shielding sub-cover 520, and a first sleeve interface 5221 and a first rotating hole 5222 are respectively formed at two ends of the first shielding cavity 522, and the first sleeve interface 5221 is arranged opposite to the first rotating hole 5222, and the first end of the rotating shaft 120 passes through the first rotating hole 5222 and extends into the first shielding cavity 522, and is connected to the touch switch 300, and the magnet 200 is sleeved on the outer peripheral wall of the first end of the rotating shaft 120, and the magnet 200 is connected to the F through the plastic shell 600. The PC chip 410 is separated and insulated, and two buckles 521 are formed at the end of the first set of interfaces 5221, so that the first shielding cavity 522 can simultaneously accommodate the magnet 200, part of the rotating shaft 120, the plastic shell 600 and part of the FPC chip 410, effectively shielding the magnetic flux interference of the magnetic charging interface 21 and the external wireless charging coil on the magnet 200; and because two buckles 521 are formed at the end of the first set of interfaces 5221, the first shielding soft and hard glue sticker 541, FPC400, the second shielding soft and hard glue sticker 542 and the second shielding sub-cover 530 can be snapped and sealed.

[0083] In one embodiment, a shielding ring is formed on the outer periphery of the first rotating hole 5222 to better improve the anti-shielding effect of the closed anti-shielding area 510 .

[0084] like Figure 2 As shown, in one embodiment, a cavity 22 is formed in the dial 20, an installation area 23 is formed in the cavity 22, an installation portion 24 is formed in the installation area 23, and the first shielding sub-cover 520 is detachably connected to the installation portion 24 for easy assembly and disassembly.

[0085] like Fig.11 As shown, in one embodiment, the first shielding sub-cover 520 is threadedly connected to the mounting portion 24. Specifically, in one embodiment, the integrated anti-shielding magnetic coding switch structure 10 further includes a locking member, and the outer peripheral wall of the first shielding sub-cover 520 is further formed with a mounting ear 523, a fifth mounting hole is formed in the mounting ear 523, and a threaded hole is formed in the mounting portion 24, the locking member passes through the fifth mounting hole and the threaded hole in sequence, and the locking member is threadedly connected to the inner wall of the threaded hole, so as to realize a detachable connection between the first shielding sub-cover 520 and the mounting portion 24.

[0086] like Fig.11As shown, in one embodiment, a first shielding cavity 522 is formed in the first shielding sub-cover 520, and a first socket 5221 and a first rotating hole 5222 are respectively formed at two ends of the first shielding cavity 522, the first socket 5221 and the first rotating hole 5222 are arranged opposite to each other, the first end of the rotating shaft 120 passes through the first rotating hole 5222 and extends into the first shielding cavity 522, and is connected to the touch switch 300, the magnet 200 is sleeved on the outer peripheral wall of the first end of the rotating shaft 120, and the magnet 200 is separated and insulated from the FPC chip 410 by the plastic shell 600, and two buckles 521 are formed at the end of the first socket 5221.

[0087] In one embodiment, the knob 100 includes a rotating head 110 and a rotating shaft 120, and the installation area 23 also includes a second rotating hole 25, the second end of the rotating shaft 120 passes through the second rotating hole 25 and is elastically connected to the rotating head 110, and the rotating shaft 120 is rotatably arranged in the first rotating hole 5222 and the second rotating hole 25 respectively. When the user needs to rotate, the user can manually rotate the rotating head 110, thereby driving the rotating shaft 120 to rotate, and then driving the magnet 200 to rotate, so as to ensure that the magnetoresistive sensor can collect the number of closed anti-shielding magnetic flux on and off times of the magnet 200, and because the rotating head 110 is elastically connected to the rotating shaft 120, and the rotating head 110 is located on the outside of the dial 20; it is convenient for the user to press down the rotating head 110, thereby driving the rotating shaft 120 to press down, so as to achieve the contact and abutment between the rotating shaft 120 and the touch switch 300.

[0088] like Figure 8 and Fig. 9 As shown, in one embodiment, the plastic shell 600 is located between the magnet 200 and the FPC chip 410. Specifically, the plastic shell 600 is covered on the magnet 200 and connected to the FPC 400. A sixth mounting hole is formed at the connection between the plastic shell 600 and the FPC chip 410. The touch switch 300 is arranged in the sixth mounting hole, thereby realizing the separation and insulation of the magnet 200 and the FPC chip 410.

[0089] In this embodiment, the elastic connection structure of the touch switch 300, the rotating shaft 120 and the rotating head 110 belongs to the prior art, and therefore, it is not described in detail in this disclosure.

[0090] In one embodiment, the rotating shaft 120 is a plastic rotating shaft 120, which includes a plastic insulating sleeve and a rotating shaft body. The insulating sleeve is formed with a receiving hole, and the rotating shaft body is inserted into the receiving hole. The magnet 200 is sleeved on the outer wall of the insulating sleeve, and the rotating head 110 is a metal rotating head 110, so that the metal rotating head 110 can be insulated from the touch switch 300 through the plastic rotating shaft 120.

[0091] like Fig.10 As shown, in one embodiment, a second shielding cavity 532 is formed in the second shielding sub-cover 530, and the second shielding cavity 532 has a second socket 5321, so that the user can cover the FPC chip 410, especially in conjunction with the use of the first shielding cavity 522 of the first shielding sub-cover 520, so that the split setting of the split shielding cover 500 is realized, so that the user can assemble it quickly.

[0092] It can be understood that since the snap-fit ​​assembly of the first shielding sub-cover 520 and the second shielding sub-cover 530 usually requires the use of external auxiliary tools for assembly, such as a small pressing device or a hammer, the present disclosure has high requirements on the structural strength of the first shielding sub-cover 520 and the second shielding sub-cover 530. If a traditional electroplated shielding cover is used, such as the shielding cover disclosed in Chinese patent document No. CN107018648A, and it is specifically disclosed that the shielding cover includes a substrate and a metal layer formed on the surface of the substrate, the material of the substrate is stainless steel, tin, iron, steel or aluminum, and the material of the metal layer is selected from at least one of zinc, chromium, nickel and titanium. There is a problem that the metal layer on the surface of the electroplated shielding cover is easy to fall off during the snap-fit ​​assembly process, thereby affecting the shielding effect. This is mainly because the metal layer of the electroplated shielding cover is usually thin and easily worn and scratched during the snap-fit ​​assembly, thereby damaging the performance of the metal layer and resulting in a poor shielding effect.

[0093] Therefore, in one embodiment, the split shielding cover 500 is prepared by pressing and sintering iron (Fe) powder and nickel (Ni) powder in a weight ratio of (1.8~2.5):1, wherein the pressing pressure is 100Bar~150Bar, and the sintering temperature is 1000℃~1500℃.

[0094] It can be understood that, first, iron (Fe) powder and nickel (Ni) powder are mixed at a weight ratio of (1.8~2.5):1, so that the iron (Fe) powder and the nickel (Ni) powder can be evenly mixed and tightly combined to form a uniform metal mixed powder; then the metal mixed powder is injected into a mold for pressing operation, and the pressing pressure is 100Bar~150Bar to obtain a metal block, which is sintered at a temperature of 1000℃~1500℃ to diffuse and combine the iron (Fe) powder and the nickel (Ni) powder particles to form a high-strength, dense and uniform metal split shielding cover 500, so that the metal split shielding cover 500 obtained by pressing and sintering can withstand greater pressure, effectively avoiding the problem of the metal layer on the surface of the traditional electroplated shielding cover easily falling off during the snap-fit ​​assembly process, thereby ensuring that the integrated anti-shielding magnetic coding switch structure 10 obtained by the snap-fit ​​assembly has a better anti-shielding effect.

[0095] It can also be understood that if the pressing pressure is lower than 100 Bar, the contact area between the particles of iron (Fe) powder and nickel (Ni) powder will be insufficient, resulting in a weakening of the bonding force between the particles of iron (Fe) powder and nickel (Ni) powder, which will cause the sintered metal split shielding cover 500 to have high porosity, low density, and insufficient strength, resulting in a decrease in the structural strength of the metal split shielding cover 500 and poor anti-shielding effect; if the pressing pressure is greater than 150 Bar, the excessively high pressure will cause the particles of iron (Fe) powder and nickel (Ni) powder to be over-compressed and form an overly dense microstructure, which will affect the anti-shielding performance and sintering efficiency of the metal split shielding cover 500. Therefore, in the present disclosure, the pressing pressure is controlled to be 100Bar~150Bar to ensure that the particles of iron (Fe) powder and nickel (Ni) powder are in complete contact with each other, thereby ensuring that the particles of iron (Fe) powder and nickel (Ni) powder have a good contact area, and also ensuring that the particles of iron (Fe) powder and nickel (Ni) powder will not be over-compressed to form an overly dense microstructure, which is conducive to the preparation of a high-strength, dense and uniform metal split shielding cover 500 with good anti-shielding effect.

[0096] It can also be understood that if the sintering temperature is less than 1000°C, the diffusion rate between the particles of iron (Fe) powder and nickel (Ni) powder will slow down, making it difficult to form an effective metallurgical bond between the particles of iron (Fe) powder and nickel (Ni) powder, thereby reducing the structural strength and anti-shielding effect of the metal split shielding cover 500; if the sintering temperature is greater than 1500°C, the excessively high sintering temperature will cause the particles of iron (Fe) powder and nickel (Ni) powder to melt excessively, forming overly large grains, and overly large grains will cause the brittleness of the metal split shielding cover 500 to increase and the toughness to decrease. Therefore, in the present disclosure, by controlling the sintering temperature of iron (Fe) powder and nickel (Ni) powder to 1000°C~1500°C, the diffusion rate between the particles of iron (Fe) powder and nickel (Ni) powder is ensured to be more suitable, which is conducive to the formation of grains with uniform size and smaller particle size. In particular, when the pressing pressure is 100Bar~150Bar, it is conducive to the preparation of high-strength, dense and uniform metal split shielding cover 500. In this way, it is ensured that the prepared metal split shielding cover 500 can better meet the pressure during the snap-fit ​​assembly, and at the same time, it is ensured that the prepared metal split shielding cover 500 has a better anti-shielding effect.

[0097] In one of the embodiments, the split shielding cover 500 also includes a lubricant, so that the added lubricant can effectively reduce the friction resistance between the iron (Fe) powder and the nickel (Ni) powder and the mold, making the pressing process smoother, which is beneficial to the uniform distribution of the iron (Fe) powder and the nickel (Ni) powder particles in the mold and reducing the wear on the mold. The lubricant can also reduce the adhesion between the metal block and the mold, making the demolding process easier and reducing the damage to the metal block during the demolding process.

[0098] In one embodiment, the lubricant includes at least one of zinc stearate and paraffin.

[0099] In one embodiment, the weight ratio of the lubricant to the nickel (Ni) powder is 2:1, so as to ensure that the addition of the lubricant is conducive to the uniform distribution of the iron (Fe) powder and the nickel (Ni) powder particles, reduces the wear on the mold, and facilitates demolding.

[0100] In one of the embodiments, before the step of mixing iron (Fe) powder and nickel (Ni) powder at a weight ratio of (1.8~2.5):1, the following step is also included, respectively grinding the iron (Fe) powder and nickel (Ni) powder to obtain iron (Fe) powder and nickel (Ni) powder with a particle size of 30 microns to 50 microns, thereby facilitating the preparation of a high-strength, dense and uniform metal split shielding cover 500 with good anti-shielding effect.

[0101] It should be noted that, since the volume of the first shielding sub-cover 520 and the second shielding sub-cover 530 disclosed in the present invention is relatively small, if the particle size is less than 20 microns, the interaction force between the iron powder or nickel powder particles with too small particle size increases, which is not conducive to their flow inside the mold, and it is difficult to evenly fill the mold, thereby affecting the molding effect and density distribution of the split shielding cover 500; and too small particle size will cause the gap between the iron powder or nickel powder particles to increase, thereby reducing the shielding performance of the metal split shielding cover 500. If the particle size is greater than 50 microns, the iron powder or nickel powder particles with a larger particle size are difficult to form a tight arrangement during the pressing process, resulting in large gaps or defects inside the split shielding cover 500, and these gaps and defects will become channels for electromagnetic waves to penetrate, thereby reducing the shielding performance of the metal split shielding cover 500. Therefore, in the present disclosure, the iron (Fe) powder and the nickel (Ni) powder are controlled to be between 20 microns and 50 microns to ensure that the particle sizes of the iron (Fe) powder and the nickel (Ni) powder are more appropriate, thereby ensuring that the first shielding sub-cover 520 and the second shielding sub-cover 530 with high strength, density and uniformity, good anti-shielding effect and small volume are prepared.

[0102] In a preferred embodiment, the iron (Fe) powder and the nickel (Ni) powder are in the range of 30 microns to 40 microns.

[0103] In one embodiment, the thickness of the first shielding sub-cover 520 and the second shielding sub-cover 530 are both 0.1 mm to 10 mm, so as to ensure that the first shielding sub-cover 520 and the second shielding sub-cover 530 with relatively thin thickness are prepared, which is conducive to the development of a lightweight integrated anti-shielding magnetic coding switch structure 10.

[0104] In one of the embodiments, the first shielding thin sub-sheet 5411 and the second shielding thin sub-sheet 5421 are also prepared by the same material and method as the first shielding sub-cover 520. The thickness of the first shielding thin sub-sheet 5411 and the second shielding thin sub-sheet 5421 is 0.5mm~5mm, especially when the thickness of the first shielding silicone sub-layer and the second shielding silicone sub-layer is 0.1mm~2mm, which is conducive to the preparation of a lightweight integrated anti-shielding magnetic coding switch structure 10.

[0105] In one embodiment, the assembly method of the integrated anti-shielding magnetic coding switch structure 10 includes the following steps: first, assemble the magnet 200, the touch switch 300, the plastic shell 600, the magnetoresistive sensor, and the FPC 400 to form an assembly; specifically, fix the plastic shell 600 on the FPC chip 410, then install the touch switch 300 in the sixth mounting hole of the plastic shell 600, install the magnet 200 in the plastic shell 600, and the magnetoresistive sensor is arranged on the FPC chip 410; then, the shielding soft and hard adhesive stickers are arranged on the outer periphery of the FPC chip 410 to ensure that the placed shielding soft and hard adhesive stickers can provide better buffering for the first shielding sub-cover 520 and the second shielding sub-cover 530 when they are pressed down, so as to effectively prevent the first shielding sub-cover 520 and the second shielding sub-cover 530 from easily crushing the FPC chip 410 when they are buckled and assembled; then, the first shielding sub-cover 520 is sleeved on the plastic shell 600, so that the first shielding sub-cover 520 can wrap the magnet 200, the plastic shell 600, and part of the rotating shaft 120; the second shielding sub-cover 530 is sleeved on the outer peripheral wall of the bottom of the FPC chip 410 to obtain a product to be pressed, so that the second shielding sub-cover 530 can wrap the FPC chip 410 and the magnetoresistive sensor, so as to ensure that a closed anti-shielding area 510 with high sealing performance can be prepared after the subsequent pressing operation; then, the product to be pressed is pressed, so that the buckle 521 of the first shielding sub-cover 520 is at least partially exposed to the second shielding sub-cover 530; finally, the exposed buckle 521 is bent and fixed to obtain the integrated anti-shielding magnetic coding switch structure 10, so that the buckle 521 can be buckled in the third mounting hole of the second shielding sub-cover 530, thereby forming a closed anti-shielding area 510 with high sealing performance.

[0106] In one embodiment, the pressure of the pressing operation of the product to be pressed is 1 bar~3 bar, and the pressing time is 0.5 min~8 min. It can be understood that if the pressing pressure is less than 1 bar or the pressing time is too short, the pressing strength will be insufficient and the closed anti-shielding area 510 with high sealing performance cannot be formed. If the pressing pressure is greater than 3 bar or the pressing time is too long, the pressing strength will be too high and the FPC chip 410 will be damaged. Therefore, in the present disclosure, by controlling the pressure to 1 bar~3 bar and the pressing time to 0.5 min~8 min, the pressing strength is ensured to be more appropriate, and the problems caused by insufficient or excessive pressing strength are effectively solved. Under the condition of avoiding crushing the FPC chip 410, it is also ensured that the closed anti-shielding area 510 with high sealing performance is formed. In addition, since the pressure of 1 bar~3 bar is lower than the pressure (4 bar~6 bar) of some traditional small pressing parts, the probability of crushing the FPC chip 410 can be further reduced.

[0107] In one of the embodiments, the exposed buckle 521 is bent and fixed. Specifically, the exposed buckle 521 is bent inward so that the buckle 521 can abut against the outer peripheral wall of the second shielding sub-cover 530, further improving the buckling assembly strength of the first shielding sub-cover 520 and the second shielding sub-cover 530.

[0108] It should be noted that, since the rigidity of the first shielding sub-cover 520 and the second shielding sub-cover 530 is relatively high, and since the FPC chip 410 is generally made of metal alloy, the first shielding sub-cover 520 and the second shielding sub-cover 530 are prone to crushing the FPC chip 410 during the pressing process. Therefore, in the present disclosure, by adding shielding soft and hard adhesive stickers, the problem that the first shielding sub-cover 520 and the second shielding sub-cover 530 are prone to crushing the FPC chip 410 during the pressing process can be solved to a certain extent. However, since the FPC 400 used in the smart watch 1 itself is relatively small in size and the circuits are relatively dense, the caliber of the first mounting hole 430 is relatively small, which will cause the buckle 521 to crush the circuit during the pressing process.

[0109] Therefore, in the present disclosure, a first preset soft rubber area is formed at the edge of the second mounting hole of the first shielding soft and hard rubber sticker 541, and the first preset soft rubber area is not provided with the first shielding thin sub-sheet 5411. At the same time, a second preset soft rubber area is formed at the edge of the second mounting hole of the second shielding soft and hard rubber sticker 542, and the second preset soft rubber area is not provided with the second shielding thin sub-sheet 5421. In this way, the added first preset soft rubber area and the second preset soft rubber area are convenient for the buckle 521 to pass through quickly, and the first preset soft rubber area and the second preset soft rubber area that are brought out have good softness, which effectively avoids the first preset soft rubber area and the second preset soft rubber area from being assembled with the buckle 521 due to the addition of the first shielding thin sub-sheet 5411 and the second shielding thin sub-sheet 5421 inside. The shielding sheet brought out during the installation process is easy to damage the line in the blank area of ​​the line lead-out part, and the penetration force of the buckle 521 is reduced, and the stress when the buckle 521 passes through the first shielding thin sub-sheet 5411 and the second shielding thin sub-sheet 5421 is reduced, so as to achieve rapid buckling assembly. The pressure is lower than the traditional pressure (4bar~6bar), so as to ensure that the buckle 521 can be pressed and passed with a smaller pressure, and the buckle 521 is effectively avoided. The problem of bending and deformation of the buckle 521 due to the high pressure during the buckling assembly process is effectively avoided, and the buckle 521 is directly stuck in the first mounting hole 430 or the second mounting hole in serious cases, and the line in the blank area of ​​the line lead-out part is directly broken, causing the FPC chip 410 to be scrapped.

[0110] It should also be noted that, in conjunction with the first preset soft rubber area bulging and shrinking toward the first surface of FPC400, a conical positioning ring is formed, and the second preset soft rubber area bulging toward the second surface of FPC400 forms a circular positioning ring, and a gap is formed between the conical positioning ring and the circular positioning ring. In this way, a smaller pressure is ensured so that the buckle 521 can pass through the second mounting hole, the conical positioning ring, the first mounting hole 430, the circular positioning ring and the third mounting hole more smoothly, effectively avoiding the problem that the buckle 521 cannot pass smoothly due to a large amount of outward squeezing of the conical positioning ring and the circular positioning ring due to high pressure, that is, solving the problem that the buckle 521 is prone to getting stuck.

[0111] Some specific examples are given below, and if % is mentioned, it means percentage by weight. It should be noted that the following examples do not exhaust all possible situations, and the materials used in the following examples can be obtained from commercial sources unless otherwise specified.

[0112] Example 1

[0113] S1. Obtain a first shielding sub-cover 520 with a thickness of 1 mm, a second shielding sub-cover 530 with a thickness of 1 mm, a first shielding soft and hard glue sub-sticker 541 with a thickness of 0.8 mm, and a second shielding soft and hard glue sub-sticker 542 with a thickness of 0.8 mm, wherein the first shielding thin sub-sheet 5411 and the second shielding thin sub-sheet 5421 are both 0.2 mm thick, the first shielding silicone sub-layer and the second shielding silicone sub-layer are both 0.3 mm, and the first shielding sub-cover 520, the second shielding sub-cover 530, the first shielding thin sub-sheet 5411 and the second shielding thin sub-sheet 5421 are all obtained by the following preparation method:

[0114] S101, mixing iron (Fe) powder, nickel (Ni) powder and zinc stearate in a weight ratio of 2:1:2, so that the iron (Fe) powder, nickel (Ni) powder and zinc stearate can uniformly form a metal mixed powder; wherein the particle size of the iron (Fe) powder and the nickel (Ni) powder is 30 microns;

[0115] S102, injecting the metal mixed powder into corresponding molds for pressing operation, the pressing pressure is 120 Bar, and obtaining metal blocks of the first shielding sub-cover 520, the second shielding sub-cover 530, the first shielding thin sub-sheet 5411 and the second shielding thin sub-sheet 5421 of different shapes;

[0116] S103, performing a sintering operation at a temperature of 1500° C. to obtain a first shielding sub-cover 520, a second shielding sub-cover 530, a first shielding thin sub-sheet 5411, and a second shielding thin sub-sheet 5421;

[0117] S2, fix the plastic shell 600 on the FPC chip 410, then install the touch switch 300 in the sixth installation hole of the plastic shell 600, install the magnet 200 in the plastic shell 600, and set the magnetoresistive sensor on the FPC chip 410, so as to assemble the magnet 200, the touch switch 300, the plastic shell 600, the magnetoresistive sensor, and the FPC 400 to form a combined component;

[0118] S3, sleeve the first shielding soft and hard glue sub-sticker 541 into the first embedding cavity 420 above the FPC400, and clamp the conical positioning ring of the first shielding soft and hard glue sub-sticker 541 at the first end of the first mounting hole 430 of the FPC400, then sleeve the second shielding soft and hard glue sub-sticker 542 into the second embedding cavity 440 below the FPC400, and clamp the circular positioning ring of the second shielding soft and hard glue sub-sticker 542 at the second end of the first mounting hole 430 of the FPC400, and a gap is formed between the conical positioning ring and the circular positioning ring; then, sleeve the first shielding sub-cover 520 on the plastic shell 600, and let the two buckles 521 of the first shielding sub-cover 520 be clamped in the two corresponding first mounting holes 430 of the FPC400 respectively; sleeve the second shielding sub-cover 530 on the outer peripheral wall of the bottom of the FPC chip 410 to obtain the product to be pressed;

[0119] S4, pressing the product to be pressed, so that the buckle 521 of the first shielding sub-cover 520 is at least partially exposed outside the second shielding sub-cover 530; wherein the pressing pressure is 2 bar, and the pressing time is 0.5 min;

[0120] S5. Bend and fix the exposed buckle 521 so that the buckle 521 can abut against the outer peripheral wall of the second shielding sub-cover 530 to obtain an integrated anti-shielding magnetic coding switch structure 10.

[0121] Comparative Example 1

[0122] The difference from Example 1 is that the comparative example 1 is not provided with a split shielding cover 500, that is, steps S1, S3, S4, and S5 are omitted, and the rest remain unchanged.

[0123] Comparative Example 2

[0124] The difference from Example 1 is that in Example 2, the first shielding soft and hard glue sticker 541 is omitted in step S1 and the step of installing the first shielding soft and hard glue sticker 541 on the FPC 400 is omitted in step S3, and the rest remains unchanged.

[0125] Comparative Example 3

[0126] The difference from Example 1 is that in Example 3, the second shielding soft and hard glue sticker 542 is omitted in step S1 and the step of installing the second shielding soft and hard glue sticker 542 on the FPC 400 is omitted in step S3, and the rest remains unchanged.

[0127] Comparative Example 4

[0128] The difference from Example 1 is that in Comparative Example 4, the pressure in S4 is directly adjusted from 2 bar to 0.5 bar, and the rest remain unchanged.

[0129] Comparative Example 5

[0130] The difference from Example 1 is that in Comparative Example 5, the pressure in S4 is directly adjusted from 2 bar to 4 bar, and the rest remain unchanged.

[0131] Comparative Example 6

[0132] The difference from Example 1 is that in S101 in step S1 of Comparative Example 6, the particle size of iron (Fe) powder and nickel (Ni) powder of 30 microns is replaced with "the particle size of iron (Fe) powder and nickel (Ni) powder of 60 microns", and the rest remains unchanged.

[0133] Comparative Example 7

[0134] The difference from Example 1 is that in S101 in step S1 of Comparative Example 7, the particle size of iron (Fe) powder and nickel (Ni) powder of 30 microns is replaced with "the particle size of iron (Fe) powder and nickel (Ni) powder of 10 microns", and the rest remains unchanged.

[0135] Comparative Example 8

[0136] The difference from Example 1 is that the pressing pressure of 120 Bar in S102 of step S1 in Comparative Example 8 is replaced by “pressing pressure of 90 Bar”, and the rest remains unchanged.

[0137] Comparative Example 9

[0138] The difference from Example 1 is that the pressing pressure of 120 Bar in S102 of step S1 in Comparative Example 9 is changed to "the pressing pressure is 160 Bar", and the rest remains unchanged.

[0139] Comparative Example 10

[0140] The difference from Example 1 is that in Comparative Example 10, the 1500° C. in S103 in step S1 is replaced with “900° C.”, and the rest remains unchanged.

[0141] Comparative Example 11

[0142] The difference from Example 1 is that in Comparative Example 11, the 1500° C. in S103 in step S1 is replaced with “1600° C.”, and the rest remains unchanged.

[0143] Comparative Example 12

[0144] The difference from Example 1 is that the first shielding sub-cover 520 and the second shielding sub-cover 530 in step S1 of Comparative Example 12 are prepared by a conventional method of electroplating shielding covers, and the rest remain unchanged.

[0145] The integrated anti-shielding magnetic coding switch structure prepared in the above-mentioned embodiment 1 and comparative examples 1 to 12 was subjected to an anti-shielding test, and the damage of the FPC chip and the overflow of the glue were detected to obtain the experimental data in the following table:

[0146] Anti-shielding test: A magnetometer is used to test the 360-degree magnetic flux of the integrated anti-shielding magnetic coding switch structure.

[0147] Whether the FPC chip is damaged: disassemble and assemble the integrated anti-shielding magnetic coding switch structure to observe the damage of the FPC chip.

[0148] Glue overflow: Use a magnifying glass to perform appearance inspection on the assembled integrated anti-shielding magnetic coding switch structure.

[0149] Table 1 Experimental data

[0150]

[0151] As can be seen from Table 1 above, the first shielding sub-cover, the second shielding sub-cover, the first shielding thin sub-sheet and the second shielding thin sub-sheet of Example 1 are all made of iron (Fe) powder, nickel (Ni) powder and zinc stearate by pressing and sintering, and the first shielding silica gel sub-layer and the second shielding silica gel sub-layer are used to ensure that the buckle assembly of the integrated anti-shielding magnetic coding switch structure can be completed with a small pressing force, thereby preparing a closed anti-shielding area with high sealing performance, and at the same time, the FPC chip will not be damaged, so that the comprehensive indicators of Example 1 are significantly better than those of Comparative Examples 1 to 12. Among them, the magnetic flux fluctuation of 360° detection of Example 1 is significantly smaller than the magnetic flux fluctuation of 360° detection of Comparative Example 1.

[0152] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the disclosed patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the disclosed patent shall be subject to the attached claims.

Claims

1. A mode switching method for a smart watch, characterized in that: The smart watch comprises a dial, an integrated anti-shielding magnetic coding switch structure and a control mainboard, wherein a magnetic charging interface is arranged in the dial; the integrated anti-shielding magnetic coding switch structure comprises a knob, a magnet, a touch switch, a magnetoresistive sensor, an FPC and a split shielding cover; the knob is at least partially rotatably arranged in the dial, the magnet is located in the dial and is connected to the rotating shaft of the knob, and the rotating shaft is used to slide and abut against the touch switch for conduction; the touch switch is arranged on the FPC chip of the FPC and is insulated and separated from the FPC chip; the magnetoresistive sensor is electrically connected to the FPC chip, and the split shielding cover forms a closed anti-shielding area, and the closed anti-shielding area is used to accommodate the FPC chip, the magnetoresistive sensor and the magnet; the control mainboard is arranged in the dial and is electrically connected to the FPC; The mode switching method of the smart watch comprises the following steps: S110, collecting the number of on-off times of the closed anti-shielding magnetic flux of the magnet; wherein the collection area of ​​the closed anti-shielding magnetic flux on-off times is located in the closed anti-shielding area; S120, detecting whether the on-off times of the closed anti-shielding magnetic flux match the preset on-off times; S130. When the magnetic flux on-off times matches the preset on-off times, outputting function execution information to the FPC chip; wherein the function execution information corresponds to the information of the preset on-off times.

2. The mode switching method of a smart watch according to claim 1, characterized in that: Before step S110, the method further includes the step of pressing down the rotating shaft so that the rotating shaft contacts and abuts against the touch switch.

3. The mode switching method of a smart watch according to claim 1, characterized in that: The function execution information includes screen lighting information, function page switching information, page scrolling information or screen zooming information.

4. The mode switching method of a smart watch according to claim 1, characterized in that: The split shielding cover includes a first shielding sub-cover and a second shielding sub-cover, the first shielding sub-cover is arranged on the outside of the FPC chip, the second shielding sub-cover is arranged on the outside of the magnet, and the second shielding sub-cover is buckled with the first shielding sub-cover.

5. The mode switching method of a smart watch according to claim 4, characterized in that: The split shielding cover also includes a shielding soft and hard adhesive sticker, which is located between the first shielding sub-cover and the second shielding sub-cover and is used to seal the gap between the first shielding sub-cover and the second shielding sub-cover.

6. The mode switching method of a smart watch according to claim 5, characterized in that: The magnetoresistive sensor is integrated on the FPC chip, the shielding soft and hard adhesive sticker comprises a first shielding soft and hard adhesive sticker and a second shielding soft and hard adhesive sticker, the first shielding soft and hard adhesive sticker is embedded in the first surface of the FPC; the second shielding soft and hard adhesive sticker is embedded in the second surface of the FPC; a line lead-out portion is formed in the middle of the FPC, a first mounting hole is formed in the blank area of ​​the line lead-out portion, the buckle of the first shielding sub-cover is arranged in one-to-one correspondence with the first mounting hole, the first shielding soft and hard adhesive sticker and the second shielding soft and hard adhesive sticker are respectively formed with a second mounting hole and a third mounting hole at positions corresponding to the buckle, the second shielding sub-cover is formed with a fourth mounting hole, the buckle passes through the second mounting hole, the first mounting hole, the third mounting hole and the fourth mounting hole in sequence, and is buckled into the fourth mounting hole; and / or, The shielding soft and hard adhesive tape comprises a shielding sheet and a silicone layer wrapped around the outer peripheral wall of the shielding sheet, and the silicone layer is respectively in sealing contact with the first shielding sub-cover and the second shielding sub-cover.

7. The mode switching method of a smart watch according to claim 1, characterized in that: The split shielding cover is prepared by pressing and sintering iron (Fe) powder and nickel (Ni) powder at a weight ratio of (1.8-2.5):1, wherein the pressing pressure is 100 Bar-150 Bar and the sintering temperature is 1000° C.-1500° C.

8. The mode switching method of a smart watch according to claim 1, characterized in that: A cavity is formed in the dial, an installation area is formed in the cavity, an installation portion is formed in the installation area, and the first shielding sub-cover of the split shielding cover is detachably connected to the installation portion; and / or, A first shielding cavity is formed in the first shielding sub-cover of the split shielding cover, and a first sleeve interface and a first rotating hole are respectively formed at two ends of the first shielding cavity, the first sleeve interface is arranged opposite to the first rotating hole, the first end of the rotating shaft passes through the first rotating hole and extends into the first shielding cavity, and is connected to the touch switch, the magnet is sleeved on the outer peripheral wall of the first end of the rotating shaft, and the magnet is separated and insulated from the FPC chip by a plastic shell, and two buckles are formed at the end of the first sleeve interface.

9. The mode switching method of a smart watch according to claim 1, characterized in that: The assembly method of the integrated anti-shielding magnetic coding switch structure comprises the following steps: Assemble the magnet, the touch switch, the plastic shell, the magnetoresistive sensor, and the FPC to form an assembly; wherein the magnet is located in the plastic shell, and the magnetoresistive sensor is disposed on the FPC chip; Putting a shielding soft and hard adhesive sticker on the outer periphery of the FPC chip; and Sleeving the first shielding sub-cover on the plastic shell; and, The second shielding sub-cover is sleeved on the outer peripheral wall of the bottom of the FPC chip to obtain a product to be pressed; Performing a pressing operation on the product to be pressed so that the buckle of the first shielding sub-cover is at least partially exposed outside the second shielding sub-cover; The exposed buckle is bent and fixed to obtain the integrated anti-shielding magnetic coding switch structure.

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