Direct-reverse clock movement

Abstract

The application discloses a forward and reverse clock movement, which comprises a shell, an MCU controller, a transmission structure, a first coil motor, a second coil motor and a rotor magnet which are arranged in the shell; the transmission structure comprises multiple-stage gears which are sequentially and mutually meshed, and a gear for being connected with a pointer is a pointer gear; the rotor magnet is fixedly connected with a first-stage gear of the multiple-stage gears; the MCU controller inputs a first driving pulse current into a first coil of the first motor coil to generate a magnetic field so as to make the first-stage gear rotate, and further make the pointer gear rotate forward; the MCU controller inputs a second driving pulse current into a second coil of the second motor coil to generate a magnetic field so as to make the first-stage gear rotate, and further make the pointer gear rotate reversely. When time needs to be corrected, a direction with a small rotation amplitude of the pointer is selected to be adjusted forward or reversely, so that the time can be corrected more quickly and accurately.

Description

TECHNICAL FIELD

[0001] The present application relates to a clock movement, in particular to a clock movement capable of driving the hands to rotate forward and backward. BACKGROUND

[0002] In a clock movement, a transmission structure composed of multiple gear wheels meshing with each other is used to drive the hands to rotate for time display. Regardless of the form of the pointer type clock, there will be errors. The existing way to correct the clock hands is to control the forward rotation of the transmission structure by the MCU controller of the clock movement to drive the hands to rotate forward to correct the time. For example, if the standard time is 10 minutes past 1 o'clock and the clock shows 20 minutes past 1 o'clock, the minute hand needs to be separately driven clockwise from 20 minutes to 60 minutes and then to 10 minutes to complete the correction of the time. This pointer type clock that can only rotate in one direction needs the hands to rotate greatly to correct when the time shown is greater than the standard time, and the large rotation of the hands consumes a lot of time. In order to reduce the time consumed by the large rotation of the hands and make the correction time more accurate, the gears in the transmission structure need to rotate at high speed to drive the hands to rotate quickly. This way of quickly driving the hands to rotate will cause the high-speed rotating gears in the transmission structure to wear seriously, resulting in inaccurate rotation of the hands and frequent correction of the time, thus forming a vicious cycle until the clock is scrapped. On the other hand, it will greatly increase the power consumption and weaken the endurance, requiring a larger battery and making it impossible to achieve a super-thin design.

[0003] In addition, the multiple meshing gear wheels in the transmission structure of the existing clock movement all have gaps, which will cause different degrees of gear slipping and vibration during operation, eventually causing the hands driven by them to interfere with each other and rub and hit the dial, thus leading to inaccurate indication and even damage to the hands. This technical defect is more serious in the design of super-thin movements, and it is particularly obvious when the metal hands are replaced by PVC hands of light weight material. Currently, to solve the problem of slipping and vibration, the common technical means is to increase the spacing between the gears to prevent the hands from interfering, rubbing and hitting each other. This existing technical means of increasing the spacing only treats the symptoms and does not solve the root problem. It does not eliminate the technical problem of gear slipping and vibration between gears, but only increases the spacing caused by slipping and vibration between gears, thus reducing the interference, rubbing and hitting between the hands. At the same time, this way of increasing the spacing will inevitably make the size and thickness of the entire clock movement larger, making it impossible to achieve a super-thin design.

[0004] Therefore, there is an urgent need for a clock movement that can rotate forward and backward to make the correction of time faster and more accurate. SUMMARY

[0005] The present application aims to provide a forward and reverse clock movement which can make the hands rotate forward or reverse according to the requirement, so as to make the time correction faster, more accurate and more energy-saving.

[0006] To achieve the above-mentioned purpose, the present application provides a forward and reverse clock movement for driving the hands to rotate for time display, which comprises a shell, an MCU controller, a transmission structure, a first coil motor, a second coil motor and a rotor magnet built in the shell; the transmission structure comprises multiple gear stages which are engaged with each other in sequence, wherein the gear for connecting with the hands is a hand gear; the first coil motor comprises a first stator sheet and a first coil wound on the first stator sheet, and the first coil is electrically connected with the MCU controller; the second coil motor comprises a second stator sheet and a second coil wound on the second stator sheet, and the second coil is electrically connected with the MCU controller; the rotor magnet is fixedly connected with the first gear of the multiple gear stages; the MCU controller inputs a first driving pulse current to the first coil, the first coil motor generates a magnetic field and drives the first gear to rotate through the rotor magnet, the first gear rotates and drives the hand gear to rotate forward through the transmission structure; the MCU controller inputs a second driving pulse current to the second coil, the second coil motor generates a magnetic field and drives the first gear to rotate through the rotor magnet, the first gear rotates and drives the hand gear to rotate reverse through the transmission structure.

[0007] Compared with the prior art, when the correction time is needed, the direction with small rotation amplitude of the pointer is selected according to the actual demand of the rotation amplitude of the pointer. When the pointer rotates in the clockwise direction, which is the direction with small adjustment amplitude, the MCU controller inputs the first driving pulse current to the first coil, the first coil generates a magnetic field after passing the first driving pulse current, the direction of the magnetic field can be known according to the winding direction of the first coil and the direction of the first driving pulse current combined with the right-hand rule; the magnetic field generated after the first coil passing the first driving pulse current and the magnetic field generated by the rotor magnet fixed on the first gear are repulsive, thereby driving the first gear to rotate (the rotor magnet rotates synchronously with the first gear), the first gear rotates to drive the pointer to rotate forward to the standard time position quickly, thereby realizing the correction of the forward adjustment time. When the pointer rotates in the counterclockwise direction, which is the direction with small adjustment amplitude, the MCU controller inputs the second driving pulse current to the second coil, the second coil generates a magnetic field after passing the second driving pulse current, the direction of the magnetic field can be known according to the winding direction of the second coil and the direction of the second driving pulse current combined with the right-hand rule; the magnetic field generated after the second coil passing the second driving pulse current and the magnetic field generated by the rotor magnet fixed on the first gear are repulsive, thereby driving the first gear to rotate (the rotor magnet rotates synchronously with the first gear), the first gear rotates to drive the pointer to rotate reversely to the standard time position quickly, thereby realizing the correction of the reverse adjustment time. As can be seen, the forward and reverse clock movement of the present application can make the pointer rotate forward or reversely according to the demand, so that the pointer reaches the correction time through the path with the smallest rotation amplitude, thereby making the correction time faster and more accurate; effectively changing the adjustment mode of the existing clock movement with MCU control, which can only correct the time by forward rotation, has outstanding substantial features. The significant progress of the present application is that the pointer of the present application rotates forward or reversely according to the demand of the correction time and the smallest path of the rotation amplitude of the pointer, so that the amplitude of the pointer correction is the smallest, thereby the time consumption is the smallest, on the one hand, the wear of the gear rotating at high speed in the transmission structure is reduced, the accuracy of the pointer rotation is ensured; on the other hand, the power consumption is greatly reduced, the endurance is enhanced, a small size button cell can be used, and the design of ultra-thin is realized.

[0008] Preferably, the winding directions of the first coil and the second coil of the forward and reverse clock movement of the present application are the same, and the current directions of the first driving pulse current and the second driving pulse current are the same.

[0009] Preferably, the first and second coil motors of the present application are arranged side by side, the free ends of the first and second stator sheets are arranged as two concentric circles with different diameters, the two concentric circles with different diameters are arranged opposite to each other and form an S / N electromagnetic field area, and the rotor magnet is fixedly connected with the first gear and located in the S / N electromagnetic field area.

[0010] Preferably, the housing of the forward-reverse clock movement of the present application comprises an upper housing and a lower housing that are buckled to each other.

[0011] Preferably, the center of the pointer gear of the forward-reverse clock movement of the present application forms a rotating center of rotation, one side of the pointer gear has spring pieces that extend outwardly and obliquely and are suspended, the spring pieces are at least two, the spring pieces are uniformly distributed around the rotating center, and the spring pieces are arranged in a compressed manner. The pointer gear in the transmission structure of the forward-reverse clock movement of the present application has spring pieces that are uniformly distributed around the rotating center and are arranged in an oblique and suspended manner on one side of the pointer gear, so that the spring pieces form an obliquely arranged suspended spring arm structure on the pointer gear. In use, the spring pieces of the pointer gear of the present application are pressed against other gears arranged in a stacked manner or the housing, and the spring pieces are pressed close to the pointer gear, so that the spring pieces of the pointer gear of the present application are adaptively compressed to a suitable height, the axial gap between the pointer gear and other gears is greatly reduced, the problem of excessive cumulative overlapping gap in the transmission structure of the engaged gears is effectively avoided, the running of the pointers driven by the transmission structure is stable and interference, friction and impact do not occur. At the same time, the spring pieces are pressed, the friction of the gear rotation is increased, the gear rotation is more stable and stable, and the problem of gear vibration and slip is further avoided, the running of the pointers driven by the transmission structure is further ensured to be stable, and interference, friction and impact of the pointers are further avoided. It can be seen that the axial gap between the gears in the transmission structure of the present application is greatly reduced, so that the transmission structure has a small volume and a thin thickness, has a super-thin structure characteristic, and the forward-reverse clock movement of the present application with the transmission structure has a super-thin and super-low tube shaft structure characteristic, the pointers driven thereby run stably and do not interfere and rub. The effect is remarkable, the practicability is strong, and it is very suitable for wide use and popularization.

[0012] Preferably, the rotating center of one side of the pointer gear of the forward-reverse clock movement of the present application outwardly protrudes a pinion for engagement, the rotating center of the other side of the pointer gear outwardly protrudes a rotating shaft, the rotating shaft is located on the same side of the pointer gear as the spring pieces, and the rotating shaft penetrates the housing for connection with the pointer.

[0013] Preferably, the elastic pieces of the forward-reverse clock movement of the present application are arc-shaped, and are distributed equidistantly with the rotation center as the center, and the bending direction of the arc-shaped elastic pieces encircles the rotation center.

[0014] Preferably, the free end of the elastic piece of the forward-reverse clock movement of the present application is a circular arc chamfer structure.

[0015] Preferably, the forward-reverse clock movement of the present application is an electric clock movement, a Bluetooth clock movement or a clock movement with built-in standard time.

[0016] Preferably, the forward-reverse clock movement of the present application is a shaft core centering structure. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic diagram of the forward-reverse clock movement of the present application.

[0018] Figure 2 is Figure 1 is a structural schematic diagram after the outer shell is removed.

[0019] Figure 3 is a structural schematic diagram of the first stator piece and the second stator piece arranged side by side of the present application.

[0020] Figure 4 is a structural schematic diagram of the first coil motor and the second coil motor arranged side by side of the present application.

[0021] Figure 5 is Figure 2 is a structural schematic diagram of the fourth gear as a minute hand wheel of the embodiment.

[0022] Figure 6 is Figure 5 is another angle structural schematic diagram.

[0023] Figure 7 is Figure 5 is another angle structural schematic diagram. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to specific implementation examples and accompanying drawings, and the technical solutions of the present invention will be explained. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below. Embodiments of the present invention will now be described with reference to the accompanying drawings, in which similar element reference numerals represent similar elements.

[0025] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0026] like Figure 1 - Figure 4As shown, the forward and reverse clock watch movement 100 of the present application is used to drive the hands to rotate for time display. The forward and reverse clock watch movement 100 of the present application comprises a housing 200, an MCU controller (not shown in the figure) built in the housing 200, a transmission structure 1, a first coil motor 2, a second coil motor 3 and a rotor magnet 4. The housing 200 of the present application comprises an upper housing 201 and a lower housing 202 which are buckled to each other. The MCU controller of the present application comprises a receiving unit for receiving standard time and a photoelectric coupler for correcting time error. When the standard time is sent through radio wave, the receiving unit receives the standard time sent through radio wave for correction, so that the forward and reverse clock watch movement 100 of the present application becomes a radio clock watch movement. When the standard time is sent through Bluetooth device, the receiving unit receives the standard time sent through Bluetooth device (mobile terminal with Bluetooth connection and time display such as mobile phone, IPAD, etc.) for correction, so that the forward and reverse clock watch movement 100 of the present application becomes a Bluetooth clock watch movement. When the standard time is stored in the storage unit built in the MCU controller, the MCU controller directly calls out the stored standard time for correction, so that the forward and reverse clock watch movement 100 of the present application becomes a clock watch movement with built-in standard time. The MCU controller obtains the reading of the current hands by detecting the reference point on the inner gear of the transmission structure 1 through the photoelectric coupler, and compares the reading of the current hands with the standard time obtained by the MCU controller to obtain the error of the hands. In the case of obtaining the error of the hands, the forward and reverse clock watch movement 100 of the present application is used to quickly drive the hands to rotate forward or reverse to quickly and accurately adjust the current time to the standard time, so as to achieve the purpose of quickly and accurately correcting time. The following will be described in detail in combination with Figure 2 Figure 7 The purpose of rotating the forward and reverse clock watch movement 100 of the present application forward and reverse will be described in detail as follows:

[0027] The purpose of rotating the forward and reverse clock watch movement 100 of the present application forward and reverse will be described in detail as follows: Figure 2 Figure 4 ​​As shown, the transmission structure 1 of the forward and reverse watch movement 100 of the present invention includes a multi-stage gear 11 that meshes with each other in sequence, wherein the gear used to connect with the pointer in the multi-stage gear 11 is a pointer gear 12. The first coil motor 2 of the present invention includes a first stator plate 21 and a first coil 22 wound on the first stator plate 21. The first coil 22 is electrically connected to the MCU controller; specifically, the starting end of the first coil 22 is electrically connected to the terminal post 23 on the first stator plate 21; the ending end of the first coil 22 is electrically connected to the terminal post 24 on the first stator plate 21; the terminal post 23 and the terminal post 24 are correspondingly connected to the pins on the MCU controller. The second coil motor 3 includes a second stator lamination 31 and a second coil 32 wound on the second stator lamination 31. The second coil 32 is electrically connected to the MCU controller. Specifically, the starting end of the second coil 32 is electrically connected to a terminal post 33 on the second stator lamination 31, and the ending end of the second coil 32 is electrically connected to a terminal post 34 on the second stator lamination 31. The terminal posts 33 and 34 are correspondingly connected to pins on the MCU controller. The rotor magnet 4 of the present invention is fixedly connected to the first stage gear 11 (11-1) of the multi-stage gear. Specifically, the first coil motor 2 and the second coil motor 3 are arranged side by side, and the free ends of the first stator lamination 21 and the second stator lamination 31 form two concentric circle structures with different diameters. The two concentric circle structures with different diameters are arranged opposite each other and form an S / N electromagnetic field region 5. The rotor magnet 4 of the present invention is fixedly connected to the first stage gear 11-1 and located within the S / N electromagnetic field region 5.

[0028] Specifically, the present invention Figure 2 The embodiment shows that the transmission structure 1 is a four-stage gear structure, which includes a first-stage gear 11-1, a second-stage gear 11-2, a third-stage gear 11-3 and a fourth-stage gear 11-4 that mesh with each other. The fourth-stage gear 11-4 is used to connect with the pointer to become the pointer gear 12. In general, when there is only one pointer, the last-stage gear is used to connect with the pointer to form the pointer gear 12.

[0029] Continue to combine Figure 2 - Figure 4When the pointer needs to be adjusted in the forward direction, the MCU controller of the present application inputs a first driving pulse current to the first coil 21 of the first coil motor 2, the first coil motor 2 generates a magnetic field and drives the first stage gear 11-1 to rotate through the rotor magnet 4, the first stage gear 11-1 rotates and drives the pointer gear 12 to rotate in the forward direction through the other gears 11 of the transmission structure 1, thereby realizing the forward rotation of the pointer. When the pointer needs to be adjusted in the reverse direction, the MCU controller of the present application inputs a second driving pulse current to the second coil 32 of the second coil motor 3, the second coil motor 3 generates a magnetic field and drives the first stage gear 11-1 to rotate through the rotor magnet 4, the first stage gear 11-1 rotates and drives the pointer gear 12 to rotate in the reverse direction through the other gears 11 of the transmission structure 1, thereby realizing the reverse rotation of the pointer.

[0030] Continuing with Figure 2 Figure 4 ​As shown, more specifically, when the present application needs to correct time, according to the actual demand of the size of the rotation amplitude of the pointer, the direction of the small rotation amplitude of the pointer is selected for adjustment. When the pointer rotates clockwise as the direction of small adjustment amplitude, the MCU controller inputs the first driving pulse current to the first coil 22, the first coil 22 generates a magnetic field after passing through the first driving pulse current, the direction of the magnetic field can be known according to the winding direction of the first coil 22 and the direction of the first driving pulse current combined with the right-hand rule; the magnetic field generated by the first coil 22 after passing through the first driving pulse current repels the magnetic field generated by the rotor magnet 4 fixed on the first gear 11-1, thereby driving the first gear 11-1 to rotate (the rotor magnet rotates synchronously with the first gear), the rotation of the first gear 11-1 drives the second gear 11-2 and the third gear 11-3 to rotate, and finally drives the fourth gear 11-4 to rotate forward, and the fourth gear 11-4 is a pointer gear 12 connected with the pointer, thereby driving the pointer gear 12 to rotate forward, the forward rotation of the pointer gear 12 drives the pointer to rotate forward quickly to the standard time position, thereby realizing the correction of the forward adjustment time. When the pointer rotates counterclockwise as the direction of small adjustment amplitude, the MCU controller inputs the second driving pulse current to the second coil 32, the second coil 32 generates a magnetic field after passing through the second driving pulse current, the direction of the magnetic field can be known according to the winding direction of the second coil 32 and the direction of the second driving pulse current combined with the right-hand rule; the magnetic field generated by the second coil 32 after passing through the second driving pulse current repels the magnetic field generated by the rotor magnet 4 fixed on the first gear 11-1, thereby driving the first gear 11-1 to rotate (the rotor magnet rotates synchronously with the first gear), the rotation of the first gear 11-1 drives the second gear 11-2 and the third gear 11-3 to rotate, and finally drives the fourth gear 11-4 to rotate reversely, and the fourth gear 11-4 is a pointer gear 12 connected with the pointer, thereby driving the pointer gear 12 to rotate reversely, the reverse rotation of the pointer gear 12 drives the pointer to rotate reversely quickly to the standard time position, thereby realizing the correction of the reverse adjustment time. As can be seen, the forward and reverse clock movement 100 of the present application can make the pointer rotate forward or reversely according to the demand, so that the pointer reaches the correction time through the path with the smallest rotation amplitude, thereby making the correction time faster and more accurate; effectively changing the existing clock movement with MCU control which can only correct time by forward rotation, having outstanding substantial features. The significant progress of the present application is that the pointer of the present application rotates forward or reversely according to the demand of the correction time and the smallest path of the rotation amplitude of the pointer, so that the correction amplitude of the pointer is the smallest, thereby the time consumption is the smallest, on the one hand, the wear of the high-speed rotating gear in the transmission structure is reduced, ensuring the accuracy of the pointer rotation; on the other hand, the power consumption is greatly reduced, the endurance is enhanced, a smaller button battery can be used, realizing the design of ultra-thin.

[0031] It is worth noting that the first coil motor 2 and the second coil motor 3 of the present application are independently operated under the control of MCU, i.e. the first coil motor 2 is operated while the second coil motor 3 is stopped, and the second coil motor 3 is operated while the first coil motor 2 is stopped. Meanwhile, when the first coil motor 2 of the present application is operated, the rotation direction of the first-stage gear 11-1 driven thereby is the first direction; when the second coil motor 3 of the present application is operated, the rotation direction of the first-stage gear 11-1 driven thereby is the second direction; the first direction and the second direction are always opposite, i.e. one is positive direction while the other is necessarily reverse direction. In addition, the size of the rotation amplitude of the pointer driven by the present application is determined by the pulse time of the corresponding first driving pulse current and second driving pulse current, which is the common knowledge in the art and will not be described in detail here.

[0032] Preferably, the winding directions of the first coil 22 and the second coil 32 are the same, the current directions of the first driving pulse current and the second driving pulse current are the same, only the directions of the magnetic fields generated by the stator sheets are opposite, thereby changing the rotation direction of the rotor magnet 4. This design can make the first coil motor 2 and the second coil motor 3 have the same structure, greatly reducing the production cost.

[0033] As shown in FIG. 1, the first coil motor 2 and the second coil motor 3 of the present application are independently operated under the control of MCU, i.e. the first coil motor 2 is operated while the second coil motor 3 is stopped, and the second coil motor 3 is operated while the first coil motor 2 is stopped. Meanwhile, when the first coil motor 2 of the present application is operated, the rotation direction of the first-stage gear 11-1 driven thereby is the first direction; when the second coil motor 3 of the present application is operated, the rotation direction of the first-stage gear 11-1 driven thereby is the second direction; the first direction and the second direction are always opposite, i.e. one is positive direction while the other is necessarily reverse direction. In addition, the size of the rotation amplitude of the pointer driven by the present application is determined by the pulse time of the corresponding first driving pulse current and second driving pulse current, which is the common knowledge in the art and will not be described in detail here. Figure 2 and Figure 5 - Figure 7As shown, preferably, the center of the pointer gear 12 in the reversible watch movement 100 of the present invention forms a rotation center O. One side of the pointer gear 12 has an outwardly inclined and suspended spring piece 121. There are at least two spring pieces 121, which are evenly distributed around the rotation center O and are compressed in a pressing manner. Because the pointer gear 12 in the transmission structure 1 of the reversible watch movement 100 of the present invention has spring pieces 121 evenly distributed around the rotation center O, and these spring pieces 121 extend outwardly and are suspended from one side of the pointer gear 12, the spring pieces 121 form an inclined and suspended spring arm structure on the pointer gear 12. In use, the spring plate 121 of the pointer gear 12 of the present invention is pressed against other gears 11 stacked with it or against the housing 200. The pressed spring plate 121 moves closer to the pointer gear 12, compressing it to a suitable height. This significantly reduces the axial clearance between the pointer gear 12 and other gears 11, effectively avoiding the problems of excessive cumulative clearance and vibration / slippage that can occur in transmission structures with multiple meshing gears 11. This ensures smooth operation of the pointers driven by the transmission structure 1 without interference, friction, or impact. Simultaneously, the pressing of the spring plate 121 increases the friction of gear rotation, making gear rotation smoother and more stable, further preventing gear vibration and slippage, ensuring smooth operation of the pointers driven by the transmission structure, and further ensuring that the pointers do not interfere, rub, or impact. Therefore, it can be seen that the transmission structure 1 of the present invention has a small volume and thin thickness due to the significant reduction in the axial clearance between the gears, resulting in an ultra-thin structural characteristic. Consequently, the clock movement of the present invention with this transmission structure has the structural characteristics of being ultra-thin and having an ultra-low spindle height, and the hands driven by it run smoothly without interference or friction. The effect is significant, the practicality is strong, and it is very suitable for widespread use.

[0034] like Figure 5 - Figure 7 As shown, preferably, a small gear 122 for meshing protrudes outward from the rotation center O on one side of the pointer gear 12 of the clock movement 100 of the present invention; specifically Figure 2In the shown embodiment, the pinion disc 122 meshes with the third stage gear 11-3, which in turn drives the pointer gear 12. The other side of the pointer gear 12 of the present application has a rotating shaft 123 protruding outwardly at the rotation center O, which is located at the same side of the pointer gear 12 as the spring sheet 121, and the rotating shaft 123 penetrates the housing 200 for connecting with the pointer. More specifically, the above-mentioned structure of the pointer gear 12 is preferably used as a minute wheel for driving the minute hand of the pointer; of course, it can also be used as a second wheel for driving the second hand, or as a hour wheel for driving the hour hand.

[0035] It is worth noting that the compression of the spring sheet 121 mentioned in the present application refers to the change of the inclination angle of the spring sheet 121 relative to the gear body 124 of the pointer gear 12, which can also be understood as the change of the distance between the spring sheet 121 and the gear body 124, rather than the compression or stretching of the length of the spring sheet 121.

[0036] Specifically, the spring sheet 121 of the present application is preferably three, of course, the spring sheet 121 can also be two, four, five, etc.

[0037] As shown in Figure 2 and Figure 5 , Figure 7 Preferably, the spring sheet 121 of the pointer gear 12 of the present application is arc-shaped. The arc-shaped spring sheet 121 makes the rotation of the pointer gear 12 more smooth when the spring sheet 121 rotates synchronously. Specifically, the spring sheet 121 of the present application is distributed at the same radius with the rotation center O as the center; the spring sheet 121 distributed at the same radius makes the entire pointer gear 12 uniformly stressed after being compressed, further ensuring the smooth operation and preventing the problem of shaking and slipping. Further, the curved direction of the arc-shaped spring sheet 121 of the pointer gear 12 of the present application surrounds the rotation center O.

[0038] As shown in Figure 2 and Figure 5 , Figure 7 Preferably, the free end 125 of the spring sheet 121 of the pointer gear 12 of the present application is arc-shaped chamfered structure; the arc-shaped chamfered structure of the free end 125 of the spring sheet 121 further improves the smooth rotation of the pointer gear 12. More specifically, the free end 125 of the spring sheet 121 of the present application is bent in the direction close to the pointer gear 12 to form a bending structure.

[0039] As shown in Figure 1 and Figure 2 , the direct and reverse clock movement 100 of the present application is in the center structure, that is, the shaft center line of the shaft for driving the pointer to rotate is located at the geometric center of the housing 200. Specifically to Figure 2In the embodiment of the application, the axis center line of the rotating shaft 123 is located at the geometric center of the housing 200.

[0040] In addition, the mutual meshing transmission mode of the gears 11 and the mode of driving the hands to rotate of the timepiece movement are well known to those skilled in the art, and will not be described in detail here.

[0041] It will be obvious to a person skilled in the art that, without departing from the scope of the application, the application is not limited to the details of the above-described exemplary embodiments and can be implemented in other concrete forms. Consequently, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the application being defined by the appended claims rather than that of the above description, and it is therefore intended that all changes and modifications that come within the meaning and range of equivalents of the claims are to be embraced by the application. Any reference signs in the claims should not be construed as limiting the claims concerned. While the application has been disclosed in connection with the preferred embodiments thereof, it will be evident that other modifications and / or adjustments can be made in view of the above detailed description. Therefore, the scope of the application should be determined by the appended claims and their legal equivalents rather than by the above description, and it is therefore intended that all changes and modifications that come within the meaning and range of equivalents of the claims are to be embraced by the application. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A clock movement that reverses direction for driving the rotation of a hand to display the time, characterized in that, The reversible watch movement includes: case; An MCU controller built into the housing; A transmission structure built into the housing, the transmission structure including a multi-stage gear that meshes with each other in sequence, wherein the gear used to connect with the pointer is the pointer gear; A first coil motor is built into a housing. The first coil motor includes a first stator lamination and a first coil wound on the first stator lamination. The first coil is electrically connected to the MCU controller. A second coil motor is built into the housing. The second coil motor includes a second stator lamination and a second coil wound on the second stator lamination. The second coil is electrically connected to the MCU controller. A rotor magnet is built into the housing, and the rotor magnet is fixedly connected to the first stage gear of the multi-stage gear; The MCU controller inputs a first drive pulse current to the first coil, the first coil motor generates a magnetic field and drives the first stage gear to rotate through the rotor magnet, and the rotation of the first stage gear drives the pointer gear to rotate in the forward direction through the transmission structure; The MCU controller inputs a second drive pulse current to the second coil, the second coil motor generates a magnetic field and drives the first stage gear to rotate through the rotor magnet, and the rotation of the first stage gear drives the pointer gear to rotate in the opposite direction through the transmission structure; The first coil and the second coil are wound in the same direction, and the first driving pulse current and the second driving pulse current are in the same direction. The first coil motor and the second coil motor are arranged side by side. The free ends of the first stator lamination and the second stator lamination are two concentric circles with different diameters. The two concentric circles with different diameters are arranged opposite each other and form an S / N electromagnetic field region. The rotor magnet is fixedly connected to the first stage gear and is located within the S / N electromagnetic field region.

2. The reversible watch movement as described in claim 1, characterized in that, The housing comprises an upper housing and a lower housing that interlock with each other.

3. The reversible watch movement as described in claim 1, characterized in that, The center of the pointer gear forms a rotation center, and one side of the pointer gear has an outwardly inclined and suspended spring piece. There are at least two spring pieces, which are evenly distributed around the rotation center and are in a compressive arrangement.

4. The reversible watch movement as described in claim 3, characterized in that, A small gear plate protrudes outward from the rotation center on one side of the pointer gear for meshing, and a rotating shaft protrudes outward from the rotation center on the other side of the pointer gear. The rotating shaft and the spring are located on the same side of the pointer gear, and the rotating shaft extends out of the housing for connection with the pointer.

5. The reversible watch movement as described in claim 4, characterized in that, The spring is arc-shaped and distributed with equal diameters around the rotation center, with the arc-shaped bending direction of the spring surrounding the rotation center.

6. The reversible watch movement as described in claim 3, characterized in that, The free end of the spring sheet has a rounded chamfered structure.

7. The reversible watch movement as described in claim 1, characterized in that, The clock movement is a radio-controlled clock movement, a Bluetooth clock movement, a clock movement with built-in standard time, a thermometer movement, a hygrometer movement, a barometer movement, or an instrument movement.

8. The reversible watch movement as described in claim 1, characterized in that, The clockwork movement features a centrally located axis.

Images