A dual-axis micromotor for timer and timer thereof

Abstract

The present application provides a dual-axis micromotor for a timer, comprising: a power mechanism, a reduction mechanism and a housing, wherein part or all of the power mechanism is arranged in the housing, and part of the reduction mechanism is arranged in the housing, the power mechanism outputs power, and after being decelerated by the reduction mechanism, the driving torque is output to the outside of the housing, characterized in that the reduction mechanism includes a reduction gear, which is a plurality of gears meshing with each other and arranged on the third rotating shaft and the fourth rotating shaft, and a part of the outermost gears on the third rotating shaft and the fourth rotating shaft respectively extends out of the housing and outputs the driving torque at the same time. The present application also provides a timer with the dual-axis micromotor, the six small teeth of the dual-axis micromotor are meshed with the large teeth of the passing wheel, the large teeth of the passing wheel drive the minute wheel and the minute hand to rotate synchronously, the small teeth of the passing wheel drive the hour wheel and the hour hand plate to rotate synchronously, and the seven small teeth of the dual-axis micromotor are meshed with the gear part of the turntable to drive the turntable to rotate.

Description

Technical Field

[0001] The present invention relates to the technical field of timers, and more particularly to a dual-axis micromotor of a timer and a timer thereof. Background Art

[0002] Timers have a wide range of uses. They can be turned on and off at set times and are widely used in daily life. They are primarily categorized as electronic and mechanical. Mechanical timers typically consist of a power mechanism, a reduction mechanism, and a control mechanism. These two mechanisms are typically housed within a single housing, known as a micromotor. The power mechanism outputs power, which is then decelerated by the reduction mechanism and then outputs the driving torque outside the housing. The reduction mechanism includes multiple reduction gears mounted on multiple shafts. The control mechanism is connected to the reduction mechanism, which extends outside the housing, to achieve the scheduled opening and closing functions.

[0003] Existing timers, such as the utility model patent with publication number CN2805198Y, entitled "Timer Deceleration Micromotor," and the utility model patent with publication number CN2798296Y, entitled "Mechanical Timer Driven by Deceleration Micromotor," are examples of CN2798296Y, a specific application of CN2805198Y. The micromotors in these two utility model patents are single-axis motors, performing only the functions of single-axis motors and exhibiting low accuracy, reaching approximately a quarter of an hour. Furthermore, there are more accurate timers currently on the market, including timers with hour and minute hand displays, which can achieve an accuracy of 1-2 minutes. However, these timers are expensive due to the high cost of the motors themselves and the 15 plastic gears they contain. Furthermore, the numerous and complex parts make manual assembly costly and difficult to repair in the event of a malfunction.

[0004] In view of this, the present invention provides a dual-axis micromotor for a timer and a timer thereof. The dual axes of the dual-axis micromotor work simultaneously, with high precision, small size, simple structure, low manufacturing precision, fast assembly speed and low cost. Summary of the Invention

[0005] The purpose of the present invention is to provide a dual-axis micromotor for a timer and a timer thereof, wherein the dual axes of the dual-axis micromotor work simultaneously, have high precision, small size, simple structure, low manufacturing precision, fast assembly speed and low cost.

[0006] One aspect of the present application provides a dual-axis micromotor for a timer, comprising: a power mechanism, a reduction mechanism and a housing, wherein part or all of the power mechanism is arranged in the housing, and part of the reduction mechanism is arranged in the housing, the power mechanism outputs power, and after being decelerated by the reduction mechanism, the driving torque is output to the outside of the housing, characterized in that the reduction mechanism includes a reduction gear, which is a plurality of mutually meshing gears arranged on the third rotating shaft and the fourth rotating shaft, and a part of the outermost gears on the third rotating shaft and the fourth rotating shaft respectively extends out of the housing and outputs the driving torque at the same time.

[0007] In some embodiments, the power mechanism includes: a coil, a stator plate and a magnet, the coil is composed of a wound enameled wire with a certain thickness, the stator plate has a hollow circular portion, and the magnet is located inside the hollow circular portion of the stator plate.

[0008] Furthermore, the two ends of the coil, that is, the two ends of the enameled wire, are respectively connected to two welding pins, which are connected to the two poles of the input power supply to generate a magnetic field, which is transmitted to the stator plate through the magnetic field. The stator plate drives the magnet to rotate and provides a stable speed.

[0009] Furthermore, the power mechanism also includes a coil bracket, which fixes the coil and two welding pins located on both sides of the coil. The arm ends of the two stator sheets are also connected and fixed to the coil bracket.

[0010] Furthermore, the coil, coil support and stator sheet are located inside the housing, outside the housing, or partially outside the housing. Preferably, the coil is located outside the housing, and the coil support and stator sheet are partially outside the housing.

[0011] Furthermore, the magnets are fixedly connected to the rotor wheel as a whole, and the magnets and the rotor wheel rotate together. The magnets and the rotor wheel are arranged on a first rotating shaft, which acts as a fixed shaft. The magnets and the rotor wheel rotate around the first rotating shaft, and the power mechanism provides a stable speed to the reduction mechanism through the rotor wheel.

[0012] In some embodiments, the reduction mechanism further includes a transition gear, which is engaged with the rotor wheel of the power mechanism and is reduced in speed by the reduction mechanism to reach a predetermined transmission speed. The transition gear is also engaged with the reduction gear, and power is transmitted to the reduction gear through the transition gear. The reduction gear includes a plurality of gears that are meshed with each other. The reduction gear is arranged on the third rotating shaft and the fourth rotating shaft. The reduction gear rotates around the third rotating shaft and the fourth rotating shaft. The outermost gears for outputting the driving torque on the third rotating shaft and the fourth rotating shaft are six wheels and seven wheels, respectively.

[0013] Furthermore, in the dual-axis micromotor of the timer, the transmission ratio between the two meshing gears is: 4≤transmission ratio≤6.

[0014] Furthermore, the transition gear includes a transition gear large tooth and a transition gear small tooth. The transition gear large tooth is engaged with the rotor wheel, and the transition gear small tooth is engaged with the reduction gear. The transition gear is set on the second rotating shaft and rotates around the second rotating shaft.

[0015] Furthermore, the transition gear and the reduction gear are similar in size, and the number of the reduction gears is 6-8. Preferably, the number of the reduction gears is 7.

[0016] Furthermore, if the number of reduction gears is 7, the reduction gears are named as one wheel, two wheels, three wheels, four wheels, five wheels, six wheels, and seven wheels in sequence. Except for the fifth wheel, the other reduction gears have large teeth and small teeth.

[0017] Furthermore, the small teeth of the transition gear mesh with the large teeth of the first wheel, the large teeth of the second wheel mesh with the small teeth of the first wheel, the large teeth of the third wheel mesh with the small teeth of the second wheel, the large teeth of the fourth wheel mesh with the small teeth of the third wheel, the fifth wheel meshes with the small teeth of the fourth wheel, and the fifth wheel and the sixth wheel are superimposed together. When rotating forward, the fifth wheel drives the six wheels to rotate together, the large teeth of the seventh wheel mesh with the large teeth of the sixth wheel, and the small teeth of the sixth wheel and the seventh wheel are arranged outside the shell and output driving torque at the same time.

[0018] The transmission ratios between the small teeth of the transition gear and the large teeth of the first wheel, the large teeth of the second wheel and the small teeth of the first wheel, the large teeth of the third wheel and the small teeth of the second wheel, the large teeth of the fourth wheel and the small teeth of the third wheel, the small teeth of the fifth wheel and the small teeth of the fourth wheel, and the large teeth of the seventh wheel and the large teeth of the sixth wheel are all: 4≤transmission ratio≤6.

[0019] Furthermore, the first wheel, third wheel, fifth wheel and sixth wheel are arranged on the third rotating shaft from bottom to top, and the second wheel, fourth wheel and seventh wheel are arranged on the fourth rotating shaft from bottom to top.

[0020] Furthermore, the small teeth of the transition gear are arranged below the large teeth of the transition gear, and the small teeth of the first, second, third, fourth, sixth and seventh wheels are arranged above the large teeth thereof.

[0021] Furthermore, the fifth wheel includes a circular anti-return mechanism, and anti-return teeth are evenly arranged inside the circular anti-return mechanism. The sixth wheel includes a slipping gear, and the slipping gear is arranged inside the circular anti-return mechanism. The slipping gear has two arc-shaped anti-return claws, and the end of each anti-return claw has a claw hook corresponding to the anti-return tooth.

[0022] When rotating in the forward direction (clockwise), the check tooth of the fifth wheel engages with the claw hook of the sixth wheel, and the fifth wheel drives the sixth wheel to rotate together. When rotating in the reverse direction (counterclockwise, also known as shifting the needle), due to the elasticity of the slipping gear, the check tooth of the fifth wheel will not engage with the claw hook of the sixth wheel. When the sixth wheel rotates, the fifth wheel will not rotate together. At the same time, whether rotating in the forward or reverse direction, the sixth wheel will drive the seventh wheel to rotate together.

[0023] Furthermore, the number of teeth of the rotor wheel, the small teeth of the transition gear, the small teeth of the first wheel, the small teeth of the second wheel, the small teeth of the third wheel, the small teeth of the fourth wheel, the large teeth of the sixth wheel, the small teeth of the sixth wheel, and the small teeth of the seventh wheel is 8-12, and the number of teeth of the large teeth of the transition gear, the large teeth of the first wheel, the large teeth of the second wheel, the large teeth of the third wheel, and the large teeth of the fourth wheel is 50-60.

[0024] Furthermore, the gear is made of plastic, specifically, POM plastic.

[0025] In some embodiments, the housing includes an upper housing and a lower housing, and one end of the rotating shaft is fixed to the upper housing or the lower housing. Preferably, one end of the rotating shaft is fixed to the lower housing.

[0026] Furthermore, the length of the shell is about 4 cm, the width of the speed reduction mechanism of the shell is about 2.5 cm, and the thickness of the shell is about 1.5 cm.

[0027] The dual-axis micromotor of the present application, on the one hand, has a large power utilization rate because a part of the two reduction gears extends out of the housing respectively and outputs a driving torque at the same time. On the other hand, after long-term in-depth research, a large number of tests and multiple optimizations, the inventors have minimized the power loss as much as possible while ensuring the space is minimized, and obtained the important technical parameters as follows: the transmission ratio between the two meshing gears is set to: 4≤transmission ratio≤6, the transition gear and the reduction gear are similar in size, and the number of reduction gears is 6-8. The 6-8 reduction gears of similar size can reasonably utilize the space, so that the space of the dual-axis micromotor is minimized and the size is small. Compared with the 15 plastic gears in the prior art, the number of gears of the reduction mechanism is reduced by 6. The reduction in the number of gears reduces power loss, and the structure is simple, the manufacturing precision is low, the assembly speed is fast, and the cost is low.

[0028] For the dual-axis micromotor of the present application, taking the number of reduction gears as 7 as an example, the transmission ratio is more than 80,000 calculated based on 24 hours. If, in order to greatly reduce power loss, fewer reduction gears are used, for example, two reduction gears are used, if the first wheel has 10 teeth, then the second wheel needs 800,000 teeth, and the diameter of the second wheel needs to be several meters, which requires a large space and is obviously not suitable for the small space of the timer micromotor (the length of the entire micromotor of the present application is about 4 cm); if the number of gears is large, on the one hand, the power loss will be large after the number of gears is increased, and on the other hand, the space occupied will increase and the thickness will increase.

[0029] Another aspect of the present application provides a timer, comprising: a biaxial micromotor, a passing wheel, an hour wheel, a minute wheel, an hour hand disc, a minute hand, and a turntable, wherein the sixth and seventh wheels of the biaxial micromotor simultaneously output driving torque, the small teeth of the sixth wheel engage with the large teeth of the passing wheel, the large teeth of the passing wheel drive the minute wheel and the minute hand to rotate synchronously, the small teeth of the passing wheel drive the hour wheel and the hour hand disc to rotate synchronously, and the small teeth of the seventh wheel engage with the gear portion of the turntable to drive the turntable to rotate.

[0030] In some embodiments, the rotating disk is used for timing, and the hour hand disk and minute hand simulate the appearance of a clock to intuitively display hours and minutes.

[0031] In some embodiments, the large tooth of the passing wheel is engaged with the minute wheel, one end of which is fixedly connected to the minute hand, and the rotation of the minute wheel drives the minute hand to rotate synchronously, and the small tooth of the passing wheel is engaged with the hour wheel, and the hour wheel is fixedly connected to the fixed end of the hour hand dial, and the rotation of the hour wheel drives the hour hand dial to rotate synchronously.

[0032] Furthermore, the hour wheel is set in the middle of the minute wheel, but the hour wheel is not fixed to the minute wheel and the minute hand, and the rotation of the hour wheel is determined by the small teeth of the passing wheel.

[0033] Furthermore, the transmission ratio between the small teeth of the sixth wheel and the large teeth of the passing wheel is about 6, the transmission ratio between the large teeth of the passing wheel and the minute wheel is about 0.3, and the transmission ratio between the small teeth of the passing wheel and the hour wheel is about 4.

[0034] Furthermore, the minute hand rotates one circle, and the hour hand rotates one scale, that is, one hour. The rotation speed of the minute wheel is 12 times that of the hour wheel, with an accuracy of 1-2 minutes.

[0035] Furthermore, the time setting range of the turntable timing function is: 15min-24h.

[0036] In some embodiments, the timer further includes a recessed cover that fixes the fixed portion of the turntable.

[0037] In some embodiments, the dual-axis micromotor includes: a power mechanism, a reduction mechanism and a shell, part or all of the power mechanism is arranged in the shell, and part of the reduction mechanism is arranged in the shell. The power mechanism outputs power, and after deceleration by the reduction mechanism, the six wheels and seven wheels of the reduction mechanism simultaneously output driving torque.

[0038] Furthermore, the transmission ratio between the two meshing gears in the dual-axis micromotor is: 4≤transmission ratio≤6, the transition gear and the reduction gear of the reduction mechanism are similar in size, and the number of the reduction gears is 6-8.

[0039] The timer of the present application, on the one hand, has a dual-axis micromotor design, which makes the dual-axis micromotor take up little space and has low power loss, and adopts dual-axis output driving torque (six wheels and seven wheels), with high power utilization. The dual-axis micromotor drives the turntable and the minute and hour hand dial to rotate at the same time, thereby improving the power utilization of the micromotor and making the size of the timer small; on the other hand, the display function of the minute hand and the hour hand dial simulates the appearance of a clock, which conforms to people's usage habits. More importantly, because of the display of the minute hand, the accuracy of the timer is improved. The accuracy of the timer of the present application reaches 1-2 minutes, while the timer of the prior art does not have a minute hand and its accuracy is a quarter of an hour, which is 5-10 times higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is the main view of the micromotor of this application.

[0041] Figure 2 This is the main view of the micromotor of the present application with the upper shell removed.

[0042] Figure 3 This is a front view of the five-wheel and six-wheel in Example 1 of the present application.

[0043] Figure 4 This is a front view of the six wheels in Example 1 of the present application.

[0044] Figure 5 This is a cross-sectional view of the six wheels in Example 1 of the present application.

[0045] Figure 6 This is an assembly diagram of the timer for this application.

[0046] Description of main component symbols:

[0047] Coil 11, magnet 13, rotor wheel 14, coil support 15, welding pin 16, first rotating shaft 17, second rotating shaft 22, third rotating shaft 24, fourth rotating shaft 25, transition gear large tooth 211, transition gear small tooth 212, fifth wheel 235, first wheel large tooth 2311, first wheel small tooth 2312, second wheel large tooth 2321, second wheel tooth 2322, third wheel large tooth 2331, third wheel small tooth 2332, fourth wheel large tooth 2341, fourth wheel small tooth 2342, circular anti-return mechanism 2351, Check tooth 2352, fifth wheel gear 2353, sixth wheel large tooth 2361, sixth wheel small tooth 2362, slipping gear 2363, check pawl 2364, pawl hook 2365, seventh wheel large tooth 2371, seventh wheel small tooth 2372, upper case 31, lower case 32, hour wheel 5, minute wheel 6, hour hand dial 7, minute hand 8, turntable 9, recessed cover 10, passing wheel large tooth 41, passing wheel small tooth 42, turntable gear part 91, turntable fixed part 92, turntable rotating part 93. DETAILED DESCRIPTION

[0048] The following examples are described to assist in understanding the present application, and the examples are not and should not be interpreted in any way as limiting the scope of protection of the present application.

[0049] In the following description, those skilled in the art will recognize that throughout this discussion, components may be described as separate functional units (which may include sub-units), but those skilled in the art will recognize that various components or portions thereof may be divided into separate components or may be integrated together (including within a single system or component).

[0050] At the same time, the connections between components or systems in the figures are not intended to be limited to direct connections. Rather, data between these components may be modified, reformatted, or otherwise altered by intermediate components. Furthermore, additional or fewer connections may be used. It should also be noted that the terms "couple," "connect," "input," or "fixed" should be understood to include direct connections, as well as indirect connections or fixations performed through one or more intermediaries.

[0051] In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "outer", "side", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship when the product of the application is used or commonly known. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting this application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0052] In addition, the terms "horizontal" and "vertical" do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", not that the structure must be completely horizontal, but can be slightly tilted.

[0053] Example 1:

[0054] A dual-axis micromotor with a timer, such as Figures 1 to 5 As shown, it includes: a power mechanism, a reduction mechanism and a housing, part or all of the power mechanism is arranged in the housing, and part of the reduction mechanism is arranged in the housing. The power mechanism outputs power, and after being decelerated by the reduction mechanism, the driving torque is output to the outside of the housing. It is characterized in that the reduction mechanism includes a reduction gear, which is a plurality of gears meshing with each other and arranged on the third rotating shaft and the fourth rotating shaft. Parts of the outermost gears on the third rotating shaft and the fourth rotating shaft respectively extend out of the housing and output the driving torque at the same time.

[0055] The power mechanism includes a coil 11, a stator plate, and a magnet 13. The coil 11 is composed of wound enameled wire of a certain thickness. The stator plate has a hollow circular portion, and the magnet 13 is located within the hollow circular portion of the stator plate. The two ends of the coil 11, i.e., the ends of the enameled wire, are connected to two welding pins 16. The welding pins 16 are connected to the two poles of the input power supply, generating a magnetic field that is transmitted to the stator plate. The stator plate drives the magnet 13 to rotate, providing a stable rotational speed. The power mechanism also includes a coil bracket 15, which secures the coil 11 and two welding pins 16 located on either side of the coil. The arm ends of the two stator plates are also connected and fixed to the coil bracket 15. The coil 11 is located outside the housing, and the coil bracket 15 and a portion of the stator plate are also located outside the housing.

[0056] The magnet 13 and the rotor wheel 14 are fixedly connected as one body, and the magnet 13 and the rotor wheel 14 rotate together. The magnet 13 and the rotor wheel 14 are mounted on a first rotating shaft 17, which acts as a fixed shaft. The magnet 13 and the rotor wheel 14 rotate around the first rotating shaft 17. The power mechanism provides a stable speed to the reduction mechanism through the rotor wheel 14.

[0057] The reduction mechanism also includes a transition gear, which meshes with the rotor wheel 14 of the power mechanism and reduces speed through the reduction mechanism to a predetermined transmission speed. The transition gear also meshes with the reduction gear, transmitting power to the reduction gear through the transition gear. The reduction gear comprises multiple intermeshing gears. The reduction gears are mounted on the third and fourth rotating shafts 24 and 25, rotating about the third and fourth rotating shafts 24 and 25. The outermost gears on the third and fourth rotating shafts 24 and 25, respectively, output the driving torque. The transmission ratio between the intermeshing gears in the dual-axis micromotor is: 4 ≤ transmission ratio ≤ 6. The transition gear comprises large transition gear teeth 211 and small transition gear teeth 212. The large transition gear teeth 211 mesh with the rotor wheel 14, while the small transition gear teeth 212 mesh with the reduction gear. The transition gear is mounted on the second rotating shaft 22 and rotates about the second rotating shaft 22.

[0058] There are seven reduction gears, named in sequence: wheel 1, wheel 2, wheel 3, wheel 4, wheel 5 235, wheel 6, and wheel 7. With the exception of wheel 5 235, all other reduction gears have large and small teeth. The transition gear's small teeth 212 mesh with wheel 1's large teeth 2311, wheel 2's large teeth 2321 mesh with wheel 1's small teeth 2312, wheel 3's large teeth 2331 mesh with wheel 2's small teeth 2322, wheel 4's large teeth 2341 mesh with wheel 3's small teeth 2332, and wheel 5 235 meshes with wheel 4's small teeth 2342. Wheel 5 235 and wheel 6 overlap. During forward rotation, wheel 5 235 drives wheel 6 along with it. Wheel 7's large teeth 2371 mesh with wheel 6's large teeth 2361. Wheel 6's small teeth 2362 and wheel 7's small teeth 2372 are located outside the housing and simultaneously output drive torque.

[0059] The first, third, fifth, and sixth wheels are arranged on the third rotating shaft 24 from bottom to top, and the second, fourth, and seventh wheels are arranged on the fourth rotating shaft 25 from bottom to top. The small teeth 212 of the transition gear are arranged below the large teeth 211 of the transition gear, and the small teeth of the first, second, third, fourth, sixth, and seventh wheels are arranged above the large teeth.

[0060] The fifth wheel 235 includes a circular anti-return mechanism 2351, with anti-return teeth 2352 evenly arranged inside the circular anti-return mechanism 2351. The sixth wheel includes a slipping gear 2363, which is disposed inside the circular anti-return mechanism 2351. The slipping gear 2363 has two arc-shaped anti-return claws 2364, each end of which has a claw hook 2365 corresponding to the anti-return teeth 2352. When rotating in the forward direction (clockwise), the anti-return teeth 2352 of the fifth wheel 235 engage with the claw hooks 2365 of the sixth wheel, causing the fifth wheel 235 to rotate together with the sixth wheel. When rotating in the reverse direction (counterclockwise, also known as shifting the hands), the anti-return teeth 2352 of the fifth wheel 235 do not engage with the claw hooks 2365 of the sixth wheel due to the certain elasticity of the slipping gear 2363. As the sixth wheel rotates, the fifth wheel 235 does not rotate together. At the same time, whether rotating forward or reverse, the six wheels will drive the seven wheels to rotate together.

[0061] Furthermore, the rotor wheel 14, transition gear small teeth 212, first wheel small teeth 2312, second wheel small teeth 2322, third wheel small teeth 2332, fourth wheel small teeth 2342, sixth wheel large teeth 2361, sixth wheel small teeth 2362, and seventh wheel small teeth 2372 have a tooth count of 12, 12, 10, 10, 10, 10, 10, 8, and 9, respectively. The transition gear large teeth 211, first wheel large teeth 2311, second wheel large teeth 2321, third wheel large teeth 2331, fourth wheel large teeth 2341, fifth wheel 235, and seventh wheel large teeth 2371 have a tooth count of 50, 60, 60, 60, 60, 40, and 40, respectively. The gears are made of POM plastic. The housing includes an upper housing 1 and a lower housing 2, with one end of the rotating shaft fixed to the lower housing 2. The length of the shell is about 4 cm, the width of the reduction mechanism of the shell is about 2.5 cm, and the thickness of the shell is about 1.5 cm.

[0062] Example 2:

[0063] A timer, such as Figures 1 to 6 As shown, it includes: a biaxial micromotor, a passing wheel, an hour wheel 5, a minute wheel 6, an hour hand disc 7, a minute hand 8, and a turntable 9. The sixth and seventh wheels of the biaxial micromotor simultaneously output driving torque. The small teeth 2362 of the sixth wheel are engaged with the large teeth 41 of the passing wheel. The large teeth 41 of the passing wheel drive the minute wheel 6 and the minute hand 8 to rotate synchronously. The small teeth 42 of the passing wheel drive the hour wheel 5 and the hour hand disc 7 to rotate synchronously. The small teeth 2372 of the seventh wheel are engaged with the gear part 91 of the turntable, driving the turntable 9 to rotate.

[0064] The rotating disk 9 is used for timing, while the hour hand disc 7 and minute hand 8 simulate the appearance of a clock, visually displaying the hours and minutes. The large tooth 41 of the rotating wheel meshes with the minute pinion 6, one end of which is fixedly connected to the minute hand 8. Rotation of the minute pinion 6 drives the minute hand 8 to rotate synchronously. The small tooth 42 of the rotating wheel meshes with the hour wheel 5, which is fixedly connected to the fixed end of the hour hand disc. Rotation of the hour wheel 5 drives the hour hand disc 7 to rotate synchronously. The hour wheel 5 is mounted in the middle of the minute pinion 6, but is not fixedly connected to the minute pinion 6 or the minute hand 8. The rotation of the hour wheel 5 is determined by the small tooth 42 of the rotating wheel. The transmission ratio between the small tooth 2362 of the six-wheel and the large tooth 41 is approximately 6, the transmission ratio between the large tooth 41 and the minute pinion 6 is approximately 0.3, and the transmission ratio between the small tooth 42 of the rotating wheel and the hour wheel 5 is approximately 4. One rotation of the minute pinion 6 corresponds to one scale mark of the hour hand disc 7, i.e., one hour. The rotation speed of the minute pinion 6 is 12 times that of the hour wheel 5, resulting in an accuracy of 1-2 minutes. The time setting range of the timing function of the turntable 9 is: 15min-24h.

[0065] The timer also includes a recessed cover head 10, which secures a fixed portion 92 of the turntable. The dual-axis micromotor comprises a power mechanism, a reduction mechanism, and a housing. The power mechanism is partially or entirely disposed within the housing, and the reduction mechanism is partially disposed within the housing. The power mechanism outputs power, which is then decelerated by the reduction mechanism. The six and seven wheels of the reduction mechanism simultaneously output driving torque. The transmission ratio between the two meshing gears in the dual-axis micromotor is 4 ≤ ≤ 6. The transition gear and reduction gear of the reduction mechanism are of similar size, and there are seven reduction gears.

[0066] Although this application has disclosed various aspects and embodiments, other aspects and embodiments will be readily apparent to those skilled in the art. Variations and modifications may be made without departing from the spirit of this application, and all such variations and modifications are within the scope of this application. The various aspects and embodiments disclosed in this application are provided for illustrative purposes only and are not intended to limit this application. The actual scope of this application is determined by the claims.

Claims

1. A timer, comprising: The biaxial micromotor, the overwheel, the hour wheel, the minute wheel, the hour hand plate, the minute hand, and the turntable, the six wheels and the seven wheels of the biaxial micromotor simultaneously output driving torque, the small teeth of the six wheels mesh with the large teeth of the overwheel, the large teeth of the overwheel drive the minute wheel and the minute hand to rotate synchronously, the small teeth of the overwheel drive the hour wheel and the hour hand plate to rotate synchronously, the small teeth of the seven wheels mesh with the gear part of the turntable, and drive the turntable to rotate. The biaxial micromotor includes: a power mechanism, a reduction mechanism and a housing. Part or all of the power mechanism is arranged in the housing, and part of the reduction mechanism is arranged in the housing. The power mechanism outputs power, and after being decelerated by the reduction mechanism, the output The driving torque is output to the outside of the housing, and the characteristic is that the reduction mechanism includes a reduction gear, which is a plurality of gears meshing with each other and arranged on the third rotating shaft and the fourth rotating shaft. Parts of the outermost gears on the third rotating shaft and the fourth rotating shaft respectively extend out of the housing and output the driving torque at the same time. The reduction mechanism also includes a transition gear, which meshes with the rotor wheel of the power mechanism, and the transition gear also meshes with the reduction gear, and transmits power to the reduction gear through the transition gear. The reduction gear includes a plurality of gears meshing with each other, and the reduction gear is arranged on the third rotating shaft and the fourth rotating shaft. The speed gear rotates around the third and fourth rotating shafts, and the outermost gears for outputting driving torque on the third and fourth rotating shafts are six wheels and seven wheels respectively. In the dual-axis micromotor of the timer, the transmission ratio between the two gears meshing with each other is: 4≤ transmission ratio≤6, the transition gear and the reduction gear are similar in size, and the number of reduction gears is 6-8; the turntable of the timer is used for timing, and the hour hand disk 7 and the minute hand simulate the appearance of a clock for intuitively displaying hours and minutes; the large tooth of the transition wheel meshes with the minute wheel, one end of the minute wheel is fixedly connected to the minute hand, and the minute wheel rotates with The moving minute hand rotates synchronously, the small teeth of the passing wheel engage with the hour wheel, and the hour wheel is fixedly connected to the fixed end of the hour hand dial. The rotation of the hour wheel drives the hour hand dial to rotate synchronously; the transmission ratio of the small teeth of the six-wheel to the large teeth of the passing wheel is about 6, the transmission ratio of the large teeth of the passing wheel to the minute wheel is about 0.3, and the transmission ratio of the small teeth of the passing wheel to the hour wheel is about 4; the minute hand rotates one circle, and the hour hand dial rotates one hour. The rotation speed of the minute wheel is 12 times that of the hour wheel, with an accuracy of 1-2 minutes; the time setting range of the timing function of the turntable is: 15min-24h; the timer also includes a concave cover head, which fixes the fixed part of the turntable.

2. The timer according to claim 1, wherein The power mechanism includes: a coil, a stator sheet and a magnet. The coil is composed of a wound enameled wire with a certain thickness. The stator sheet has a hollow circular part, and the magnet is located inside the hollow circular part of the stator sheet.

3. The timer according to claim 2, wherein: The power mechanism includes one or more features selected from the group consisting of: (1) The two ends of the enameled wire are connected to two welding pins, which are connected to the two poles of the input power supply to generate a magnetic field, which is transmitted to the stator through the magnetic field. The stator drives the magnet to rotate and provide a stable speed; (2) The power mechanism also includes a coil bracket, which fixes the coil and fixes two welding pins located on both sides of the coil. The arm ends of the two stator sheets are also connected and fixed to the coil bracket; (3) The coil, coil support and stator sheet are located inside the housing, outside the housing, or partially outside the housing.

4. The timer according to claim 2, wherein: The magnet is fixedly connected to the rotor wheel as a whole, and the magnet and the rotor wheel rotate together.

5. The timer according to claim 1, wherein The shell includes an upper shell and a lower shell. One end of the rotating shaft is fixed to the upper shell or the lower shell. The length of the shell is about 4 cm, the width of the reduction mechanism of the shell is about 2.5 cm, and the thickness of the shell is about 1.5 cm.

6. The timer according to claim 1, wherein: The dual-axis micromotor includes: a power mechanism, a reduction mechanism and a housing. Part or all of the power mechanism is arranged in the housing, and part of the reduction mechanism is arranged in the housing. The power mechanism outputs power, and after deceleration by the reduction mechanism, the six wheels and the seven wheels of the reduction mechanism simultaneously output driving torque. The transmission ratio between the two mutually meshing gears in the dual-axis micromotor is: 4≤transmission ratio≤6. The transition gear and the reduction gear of the reduction mechanism are similar in size, and the number of reduction gears is 6-8.

Images