Electronic watch movement structure and electronic watch

Abstract

The utility model discloses an electronic watch movement structure and an electronic watch which are simple and convenient to calibrate time and can greatly reduce the power consumption of the movement structure. The electronic watch movement structure includes a display screen, a light guide, a gear box, a gear box fixing frame, an electronic movement circuit board, a movement bottom cover and a battery. The gear box includes a gear box clamp, a motor drive assembly fixedly mounted on the gear box clamp, a travel gear structure connected to the motor drive assembly in a transmission manner, a motor coil signal connection plate fixedly mounted on the gear box clamp and a mechanical needle calibration structure. The mechanical needle calibration structure includes a metal clutch, a handle core, a handle core fixing metal plate fixedly connected to the gear box clamp and a needle wheel mounted on the handle core. The metal clutch is connected to the travel gear structure, the needle wheel is connected to the travel gear structure in a transmission manner, and the electronic movement circuit board is electrically connected to the display screen, the motor coil signal connection plate and the battery respectively.

Description

Technical Field

[0001] The utility model relates to the technical field of watch movement, in particular to an electronic watch movement structure and an electronic watch. Background Art

[0002] The movement structure that the LED screen and gear box combine on the market now has no mechanical needle adjustment structure in the gear box, and the needle must be adjusted through key operation using the chip's driving electrical signal. Since the gear box is a linked structure of hour and minute hand gears, when calibrating the hour hand position, the minute hand needs to move 360° (60-minute scale) before the hour hand can move 30° (1-hour scale), and the minute hand generally requires 180 driving signals to drive it for 360°. The operation is quite cumbersome. If the operation is wrong and the pointer position exceeds the standard time, it must be re-calibrated. The entire needle adjustment process is very troublesome and consumes a lot of battery power, shortening the battery life. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide an electronic watch movement structure and an electronic watch which are simple and convenient for time adjustment and can greatly reduce the power consumption of the movement structure.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] An electronic watch movement structure comprises a display screen, a light guide, a gear box, a gear box fixing frame, an electronic movement circuit board, a movement bottom cover and a battery, wherein the display screen, the light guide and the gear box are fixedly mounted on the gear box fixing frame, the battery is mounted on the movement bottom cover, an accommodating space is formed between the gear box fixing frame and the movement bottom cover, the electronic movement circuit board is arranged in the accommodating space, the gear box comprises a gear box splint, a motor drive assembly fixedly mounted on the gear box splint, a timing gear structure transmission-connected to the motor drive assembly, a motor coil signal connection plate fixedly mounted on the gear box splint and a mechanical needle adjustment structure, the mechanical needle adjustment structure comprises a metal clutch, a handle core, a handle core fixing metal plate fixedly connected to the gear box splint and a needle wheel mounted on the handle core, the metal clutch is connected to the timing gear structure, the needle wheel is transmission-connected to the timing gear structure, and the electronic movement circuit board is electrically connected to the display screen, the motor coil signal connection plate and the battery respectively.

[0006] An electronic watch comprises a watch body and a watch band, wherein the watch body comprises a watch case and the electronic watch movement structure as described above and arranged in the watch case.

[0007] The beneficial technical effect of the utility model is that the above-mentioned electronic watch movement structure and electronic watch add a mechanical hand adjustment structure to the gear box, and the minute hand and the hour hand can be quickly adjusted in the clockwise or counterclockwise direction by rotating the core of the mechanical hand adjustment structure. Compared with the prior art of adjusting the hands by key operation using the chip's driving electrical signal, time adjustment is simple and convenient, and the power consumption of the movement structure is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the exploded structure of the electronic watch movement structure of the utility model;

[0009] Figure 2 It is a schematic diagram of the assembly position relationship between the gear box and the gear box fixing frame of the utility model;

[0010] Figure 3 It is a three-dimensional structural schematic diagram of the gear box of the utility model;

[0011] Figure 4 It is a schematic diagram of the exploded structure of the gear box of the utility model;

[0012] Figure 5 This is a schematic diagram of the three-dimensional structure of the gear box of the utility model after removing the core;

[0013] Figure 6 It is a three-dimensional structural schematic diagram of the handle core of the utility model;

[0014] Figure 7 It is a three-dimensional structural schematic diagram of the metal clutch of the utility model;

[0015] Figure 8 It is a schematic diagram of the assembly position relationship between the handle core and the metal clutch of the utility model;

[0016] Fig. 9 It is a schematic diagram of the coordination relationship between the timing gear structure and the mechanical needle adjustment structure when the core is in the pushed-in state;

[0017] Fig.10 It is a schematic diagram of the coordination between the timing gear structure and the mechanical adjustment structure when the core is in the pulled-out state. DETAILED DESCRIPTION

[0018] In order to enable ordinary technicians in the field to more clearly understand the purpose, technical solutions and advantages of the utility model, the utility model is further explained below in conjunction with the accompanying drawings and embodiments.

[0019] The utility model provides an electronic watch movement structure.

[0020] like Figure 1-10As shown, in one embodiment of the utility model, the electronic watch movement structure includes a display screen 10, a light guide plate 20, a gear box 30, a gear box fixing frame 40, an electronic movement circuit board 50, a movement bottom cover 70 and a battery 80. The gear box fixing frame 40 is provided with a gear box mounting hole 41 and a display module accommodating space 42, the gear box 30 is fixedly installed in the gear box mounting hole 41, the display screen 10 and the light guide plate 20 are fixedly installed in the display module accommodating space 42, wherein the display screen 10 can be an LED screen, an LCD screen or other types of display screens. The movement bottom cover 70 is provided with a battery compartment 71, the battery 80 is installed in the battery compartment 71, and a battery pressing sheet 72 is provided at the opening of the battery compartment 71. The movement bottom cover 70 is fixedly connected to the gear box fixing frame 40 by screws, and an accommodating space is formed between the gear box fixing frame 40 and the movement bottom cover 70. The electronic movement circuit board 50 is arranged in the accommodating space, and a driving chip 51 is arranged on the electronic movement circuit board 50.

[0021] The gear box 30 includes a gear box plate 31, a motor drive assembly 32 fixedly mounted on the gear box plate 31, a timing gear structure 33 transmission-connected to the motor drive assembly 32, a motor coil signal connection plate 34 fixedly mounted on the gear box plate 31, and a mechanical needle adjustment structure. The mechanical needle adjustment structure includes a metal clutch 35, a handle core 36, a handle core fixing metal plate 37 fixedly connected to the gear box plate 31, and a needle wheel 38 mounted on the handle core 36. The metal clutch 35 is connected to the timing gear structure 33, and the needle wheel 38 is transmission-connected to the timing gear structure 33. The electronic movement circuit board 50 is electrically connected to the display screen 10, the motor coil signal connection plate 34, and the battery 80, respectively.

[0022] The handle core fixing metal plate 37 is provided with a conductive spring 391, and the conductive spring 391 is electrically connected to the motor coil signal connection plate 34 through the handle core fixing metal plate 37. The motor coil signal connection plate 34 is also provided with a conductive spring 392. The motor coil signal connection plate 34 is electrically connected to the electronic movement circuit board 50 through the conductive spring 391 and the conductive spring 392. The structure is simple and the installation is convenient. In other embodiments, two conductive springs may be provided on the motor coil signal connection board 34 to correspond to the two signal connectors of the motor coil signal connection board 34, and the motor coil signal connection board 34 is electrically connected to the electronic movement circuit board 50 through the two conductive springs; two conductive springs may be welded on the motor coil signal connection board 34 to correspond to the two signal connectors of the motor coil signal connection board 34, and the motor coil signal connection board 34 is electrically connected to the electronic movement circuit board 50 through the two conductive springs; a conductive spring and a conductive spring may be welded on the motor coil signal connection board 34 to correspond to the two signal connectors of the motor coil signal connection board 34, so as to realize the electrical connection between the motor coil signal connection board 34 and the electronic movement circuit board 50.

[0023] A key contact sheet 60 is respectively disposed on two side surfaces of the gear box fixing frame 40 , and the key contact sheet 60 is electrically connected to the electronic movement circuit board 50 .

[0024] The motor drive assembly 32 includes a rotor wheel 321 rotatably connected to the gear box clamp plate 31 , and a motor coil 322 fixedly mounted on the gear box clamp plate 31 for driving the rotor wheel 321 to rotate. The motor coil 322 is electrically connected to the motor coil signal connection plate 34 . The travel gear structure 33 includes a second hand shaft 331 rotatably connected to the gear box splint 31, a tubular minute hand shaft 332 rotatably connected to the gear box splint 31 and sleeved on the outside of the second hand shaft 331, a tubular hour hand shaft 333 rotatably connected to the gear box splint 31 and sleeved on the outside of the minute hand shaft 332, a first transmission wheel set connected between the rotor wheel 321 and the second hand shaft 331, a second transmission wheel set connected between the second hand shaft 331 and the minute hand shaft 332, and a third transmission wheel set connected between the minute hand shaft 332 and the hour hand shaft 333. The metal clutch 35 is connected to the second transmission wheel set, and the metal clutch 35 changes the assembly position of the second transmission wheel set as the core 36 is pulled open / pushed in. The needle wheel 38 is transmission-connected to the third transmission wheel set, and the needle wheel 38 is tightly matched with the core 36 when the core 36 is pulled open.

[0025] The first transmission wheel set includes a transmission wheel piece tooth 334 rotatably connected to the gear box splint 31 and engaged with the rotor wheel 321 for transmission, a transmission wheel shaft tooth 335 coaxially arranged with the transmission wheel piece tooth 334, and a second hand wheel piece tooth 336 arranged on the second hand shaft 331 and engaged with the transmission wheel shaft tooth 335 for transmission. The second transmission wheel set includes a second hand shaft tooth (not shown) arranged on the second hand shaft 331 and coaxially arranged with the second hand wheel piece tooth 336, a passing wheel piece tooth 337 rotatably connected to the metal clutch 35 and engaged with the second hand wheel shaft tooth for transmission, a passing wheel shaft tooth (not shown) coaxially arranged with the passing wheel piece tooth 337, and a minute hand wheel piece tooth 338 arranged on the minute hand shaft 332 and engaged with the passing wheel shaft tooth for transmission. The third transmission wheel group includes a minute hand wheel shaft tooth (not shown) arranged on the minute hand shaft 332 and coaxially arranged with the minute hand wheel tooth 338, a short wheel tooth 339 rotatably connected to the gear box splint 31 and engaged with the minute hand wheel shaft tooth and the needle wheel 38 for transmission, a short wheel shaft tooth (not shown) coaxially arranged with the short wheel tooth 339, and an hour hand wheel (not shown) arranged on the hour hand shaft 333 and engaged with the short wheel shaft tooth for transmission.

[0026] The front end of the handle core 36 is provided with a fixed end 361, a handle core neck 362 and a handle core groove 363 which can be closely matched with the needle setting wheel 38. The handle core neck 362 is connected to the fixed end 361 and the outer diameter of the handle core neck 362 is smaller than the outer diameter of the fixed end 361. The bent portion of the side of the handle core fixing metal plate 37 is provided with a handle core installation hole 371 for the handle core groove 363 to be placed in. The middle position of the handle core groove 363 is formed with a protrusion 364 which can be closely matched with the handle core installation hole 371. Both sides of the protrusion 364 are provided with guiding inclined surfaces 365. When a thrust or a pull is applied to the handle core 36, the handle core installation hole 371 can be entered from one side of the protrusion 364 to the other side of the protrusion 364, so that the handle core 36 can be switched between the two states of being pulled open and pushed in.

[0027] The metal clutch 35 is provided with a wheel assembly hole 351, and the coaxially arranged wheel plate teeth 337 and the wheel shaft teeth are rotatably connected to the metal clutch 35 through the wheel assembly hole 351. One end of the metal clutch 35 is rotatably connected to the gear box clamp 31, and the other end of the metal clutch 35 is connected to a clutch elastic arm 352, and the end of the clutch elastic arm 352 is provided with a hook 353. The gear box clamp 31 is provided with a positioning column 311 that abuts against the inner side of the clutch elastic arm 352. The metal clutch 35 is also provided with a baffle portion 354, which is located at the front side of the front end of the handle core 36. When the baffle portion 354 is squeezed by the front end of the handle core 36, the clutch elastic arm 352 is in an elastically stretched state. At this time, the hook 353 buckles the positioning column 311 to prevent the clutch elastic arm 352 from being separated from the positioning column 311, so that the clutch elastic arm 352 remains in an elastically stretched state. In other embodiments of the present invention, the metal clutch 35 may also adopt other forms of metal elastic parts. As long as the metal elastic parts can be deformed as the handle core is pushed in to drive the second transmission wheel set into the working position, and can be reset as the handle core is pulled open to drive the second transmission wheel set away from the working position, they can all be used as the metal clutch 35 of the present invention. There is no limitation on the shape, size and specific assembly method of the metal elastic parts.

[0028] The working principle of the mechanical needle calibration structure is as follows: when the core 36 is in the pushed-in state, Fig. 9 As shown, the front end of the handle core 36 squeezes the baffle portion 354 to pull the clutch spring arm 352 open and put it in an elastic stretching state. At this time, the wheel plate teeth 337 and the wheel shaft teeth assembled on the metal clutch 35 enter the working position. At the same time, the handle core neck 362 of the handle core 36 enters the mounting hole of the needle wheel 38 and slides with the needle wheel 38. When the handle core 36 is in the open state, as shown in FIG. Fig.10 As shown, the front end of the handle core 36 is disengaged from the metal clutch 35, and the clutch spring arm 352 is reset, causing the metal clutch 35 to shift, and the overwheel piece teeth 337 and the overwheel shaft teeth assembled on the metal clutch 35 are brought away from the working position. At the same time, the fixed end 361 of the handle core 36 enters the mounting hole of the needle wheel 38 and closely cooperates with the needle wheel 38. At this time, rotating the handle core 36 can drive the needle wheel 38 to rotate, and the needle wheel 38 drives the cross-wheel piece teeth 339 to rotate, and then drives the minute hand wheel shaft teeth and the hour hand wheel to rotate, thereby realizing the correction function of the hour hand and minute hand.

[0029] The utility model also provides an electronic watch, including a watch body and a watch band, wherein the watch body includes a watch case and an electronic watch movement structure arranged in the watch case, wherein the electronic watch movement structure adopts Figure 1-10 The electronic watch movement structure in the illustrated embodiment.

[0030] The electronic watch also includes a pointer assembly. In some embodiments of the present utility model, the pointer assembly includes a second hand fixedly connected to the second hand shaft 331, a minute hand fixedly connected to the minute hand shaft 332, and an hour hand fixedly connected to the hour hand shaft 333, thereby forming an electronic watch with a three-hand structure of hours, minutes, and seconds. In other embodiments of the present utility model, the pointer assembly includes a minute hand fixedly connected to the minute hand shaft 332 and an hour hand fixedly connected to the hour hand shaft 333, thereby forming an electronic watch with a two-hand structure of hours and minutes.

[0031] To sum up, the electronic watch movement structure and the electronic watch of the present invention add a mechanical hand adjustment structure to the gear box, and realize the correction of the minute hand and the hour hand by rotating the core of the mechanical hand adjustment structure. Compared with the prior art of using the driving electrical signal of the chip to adjust the hands by key operation, the time adjustment is simple and convenient, and the operating power consumption of the movement structure is greatly reduced; in addition, the electronic watch movement structure of the present invention shares the timing signal and power supply of the driving chip, respectively realizes the digital display function of the display screen and the timing function of the movement structure, and the timing accuracy is synchronized, which saves batteries, optimizes the production method and production process of the movement structure, and reduces production costs; the electronic watch movement structure of the present invention is compatible with electronic watches with two-needle and three-needle structures, and can be used as the movement of electronic watches with two-needle and three-needle structures, respectively.

[0032] The above description is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Those skilled in the art can make various equivalent changes and improvements based on the above embodiments, and all equivalent changes or modifications made within the scope of the claims should fall within the protection scope of the utility model.

Claims

1. An electronic watch movement structure, characterized in that: The invention comprises a display screen, a light guide, a gear box, a gear box fixing frame, an electronic movement circuit board, a movement bottom cover and a battery, wherein the display screen, the light guide and the gear box are fixedly mounted on the gear box fixing frame, the battery is mounted on the movement bottom cover, an accommodating space is formed between the gear box fixing frame and the movement bottom cover, the electronic movement circuit board is arranged in the accommodating space, the gear box comprises a gear box splint, a motor drive assembly fixedly mounted on the gear box splint, a timing gear structure transmission-connected with the motor drive assembly, a motor coil signal connecting plate fixedly mounted on the gear box splint and a mechanical needle adjustment structure, the mechanical needle adjustment structure comprises a metal clutch, a handle core, a handle core fixing metal plate fixedly connected with the gear box splint and a needle wheel mounted on the handle core, the metal clutch is connected to the timing gear structure, the needle wheel is transmission-connected with the timing gear structure, and the electronic movement circuit board is electrically connected to the display screen, the motor coil signal connecting plate and the battery respectively.

2. The electronic watch movement structure as claimed in claim 1, characterized in that: The display screen is an LED screen or an LCD screen.

3. The electronic watch movement structure as claimed in claim 1, characterized in that: The movement bottom cover is provided with a battery compartment for installing the battery, and a battery pressing sheet is provided at the opening of the battery compartment; the movement bottom cover is fixedly connected to the gear box fixing frame by screws.

4. The electronic watch movement structure as claimed in claim 1, characterized in that: A key contact piece is provided on the side of the gear box fixing frame, and the key contact piece is electrically connected to the electronic movement circuit board.

5. The electronic watch movement structure as claimed in claim 1, characterized in that: The motor coil signal connection board is provided with two signal connectors, and the gear box is electrically connected to the electronic movement circuit board via the two signal connectors.

6. The electronic watch movement structure as claimed in claim 5, characterized in that: One of the two signal connectors uses a conductive spring, and the other signal connector uses a conductive spring; or, both of the two signal connectors use a conductive spring; or, both of the two signal connectors use a conductive spring.

7. The electronic watch movement structure according to any one of claims 1 to 6, characterized in that: The motor drive assembly includes a rotor wheel rotatably connected to the gear box splint, a motor coil fixedly mounted on the gear box splint for driving the rotor wheel to rotate, the motor coil is electrically connected to the motor coil signal connection plate, the travel gear structure includes a second hand shaft rotatably connected to the gear box splint, a tubular minute hand shaft rotatably connected to the gear box splint and sleeved on the outside of the second hand shaft, a tubular hour hand shaft rotatably connected to the gear box splint and sleeved on the outside of the minute hand shaft, a first transmission wheel set connected between the rotor wheel and the second hand shaft, a second transmission wheel set connected between the second hand shaft and the minute hand shaft, and a third transmission wheel set connected between the minute hand shaft and the hour hand shaft, the metal clutch is connected to the second transmission wheel set, the metal clutch changes the assembly position of the second transmission wheel set as the handle is pulled open / pushed in, the needle wheel is transmission-connected to the third transmission wheel set, and the needle wheel is tightly matched with the handle when the handle is pulled open.

8. The electronic watch movement structure as claimed in claim 7, characterized in that: The first transmission wheel group includes transmission wheel teeth rotatably connected to the gear box splint and engaged with the rotor wheel for transmission, transmission wheel shaft teeth coaxially arranged with the transmission wheel teeth, and second hand wheel teeth arranged on the second hand shaft and engaged with the transmission wheel shaft teeth for transmission; the second transmission wheel group includes second hand wheel shaft teeth arranged on the second hand shaft and coaxially arranged with the second hand wheel teeth, passing wheel teeth rotatably connected to the metal clutch and engaged with the second hand wheel shaft teeth for transmission, passing wheel shaft teeth coaxially arranged with the passing wheel teeth, and minute hand wheel teeth arranged on the minute hand shaft and engaged with the passing wheel shaft teeth for transmission; the third transmission wheel group includes minute hand wheel shaft teeth arranged on the minute hand shaft and coaxially arranged with the minute hand wheel teeth, cross-wheel teeth rotatably connected to the gear box splint and engaged with the minute hand wheel shaft teeth and the hand setting wheel for transmission, and cross-wheel teeth coaxially arranged with the cross-wheel teeth The cross-wheel shaft teeth are arranged on the hour hand shaft and engage with the cross-wheel shaft teeth for transmission; the front end of the core is provided with a fixed end position, a core neck and a core groove portion that can closely match the needle wheel; the core neck portion is connected to the fixed end position and the outer diameter of the core neck portion is smaller than the outer diameter of the fixed end position; the bent portion on the side of the core fixing metal plate is provided with a core mounting hole for the core groove portion to be inserted; the middle position of the core groove portion is convex to form a convex portion that can closely match the core mounting hole, and guide inclined surfaces are provided on both sides of the convex portion; the metal clutch adopts a metal elastic part, and the metal clutch is deformed as the core is pushed in, driving the second transmission wheel group into the working position, and the metal clutch is reset as the core is pulled open, driving the second transmission wheel group to leave the working position.

9. An electronic watch, comprising a watch body and a watch strap, characterized in that: The watch body includes a watch case and an electronic watch movement structure as claimed in any one of claims 1 to 8 arranged in the watch case.

10. The electronic watch as claimed in claim 9, characterized in that: The electronic watch also includes a pointer assembly, which includes a minute hand fixedly connected to the minute hand shaft and an hour hand fixedly connected to the hour hand shaft; or, the pointer assembly includes a second hand fixedly connected to the second hand shaft, a minute hand fixedly connected to the minute hand shaft, and an hour hand fixedly connected to the hour hand shaft.

Images