A durable timer

Abstract

The present invention provides a durable timer comprising a PCB, a housing tube, a real-time clock chip, and a microcontroller. The housing tube comprises a blocking cap at each end, the PCB being housed within the housing tube and detachably connected to the two blocking caps at each end. One side of the PCB is provided with at least one display screen, and the other side is provided with a power supply. One end of the PCB, which is provided with the power supply, is provided with a real-time clock chip, and the other end is provided with a microcontroller. Two spring-loaded pins facing each other are provided at one end of the PCB, which is adjacent to the microcontroller. A pin is inserted into one of the blocking caps, which abuts against the two spring-loaded pins, thereby connecting the two spring-loaded pins via the pin, thereby forming a conductive circuit on the PCB and rendering it inoperative. This timer has a simple structure, is capable of measuring extremely long periods of time, and is suitable for widespread use.

Description

Technical Field

[0001] The present invention relates to the technical field of timers, and in particular to a durable timer. Background Art

[0002] Mechanical timers require periodic winding to maintain operation; electromechanical timers use a small synchronous AC motor to rotate a cam against the teeth of a switch contact, resulting in relatively large dimensions. Electronic timers, like quartz clocks with specialized electronic devices, can achieve higher accuracy than mechanical timers. Electronic timers are currently widely used in clocks and stopwatches, but they lack the ability to measure long periods of time and cannot retain previous timings even after battery replacement. Therefore, there is an urgent need for timers that can maintain previous timings even when disposable batteries are replaced. Summary of the Invention

[0003] In view of this, an embodiment of the present invention provides a durable timer.

[0004] An embodiment of the present invention provides a durable timer comprising a PCB, a real-time clock chip, a microcontroller, and a backup rechargeable power supply. The PCB is provided with at least one display screen on one side and a power supply on the other side. The real-time clock chip and the backup rechargeable power supply are provided at one end of one side of the PCB, and the microcontroller is provided at the other end. Two spring ejectors facing each other are provided at one end of the PCB, with a pull pin provided between the two spring ejectors. The pull pin abuts against the two spring ejectors, connecting the two spring ejectors via the pull pin, thereby causing the PCB to form a conductive loop and become inoperative.

[0005] Furthermore, the power supply unit includes at least one battery slot and disposable batteries adapted to each battery slot, and each disposable battery is installed in the corresponding battery slot.

[0006] Furthermore, it also includes a shell tube, and sealing covers are respectively provided at both ends of the shell tube. The PCB board is accommodated in the shell tube, and adapter blocks are respectively fixedly provided at both ends of the PCB board. The PCB board is detachably fixedly connected to the two sealing covers through the two adapter blocks.

[0007] Furthermore, a circumvention hole is provided on one of the blocking covers, and the pull pin is inserted into the corresponding blocking cover through the circumvention hole and abuts against the two spring ejectors.

[0008] Furthermore, a sealing O-ring is provided in each of the sealing covers.

[0009] Furthermore, a sealing O-ring is provided on the portion of the pull pin located in the avoidance hole.

[0010] Furthermore, the outer shell tube is a transparent borosilicate tube.

[0011] Furthermore, the pull pin is made of metal material.

[0012] Furthermore, the model of the microcontroller is STM32L053.

[0013] The beneficial effects of the technical solution provided by the embodiments of the present invention are: a durable timer of the present invention has a simple structure and can be turned on and used as needed. At the same time, when replacing the disposable battery, a spare rechargeable battery can be used to ensure that the timer is always in the timing state during the replacement process, avoiding the timing stopping when replacing the disposable battery. In addition, the timer has strong endurance and is durable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of a durable timer of the present invention;

[0015] Figure 2 yes Figure 1 Schematic diagram of the structure of the PCB board and its connecting components inside the middle and outer shell tubes;

[0016] Figure 3 yes Figure 2 Schematic diagram of the structure from the perspective of the lower middle;

[0017] Figure 4 yes Figure 3 Schematic diagram of the position of the spring ejector.

[0018] In the figure: 1-housing tube, 2-sealing cover, 3-pull pin, 4-PCB board, 5-display screen, 6-battery slot, 7-disposable battery, 8-spare rechargeable battery, 9-real-time clock chip, 10-microcontroller, 11-spring ejector pin. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0020] Please refer to Figures 1 to 4 An embodiment of the present invention provides a durable timer, including a PCB board 4, a housing tube 1, a real-time clock chip 9, and a microcontroller 10.

[0021] Please refer to Figure 1 , removable sealing covers 2 are respectively provided at both ends of the outer shell tube 1, each sealing cover 2 is provided with a sealing O-ring and is sealedly connected to the corresponding end of the outer shell tube 1 through the corresponding sealing O-ring. In this embodiment, the number of sealing O-rings in each sealing cover 2 is two, and the outer shell tube 1 is a transparent borosilicate tube.

[0022] Please refer to Figure 2 The PCB board 4 is located inside the shell tube 1, and adapter blocks (not shown) are provided at both ends of the PCB board 4. The PCB board 4 is detachably fixedly connected to the two blocking covers 2 through the adapter blocks at both ends, so that the PCB board 4 can be relatively fixed in the shell tube 1.

[0023] At least one display screen 5 is provided on one side of the PCB board 4. In this embodiment, there are two display screens 5, which can be used to display the year, month, day and time, or only to display the time. Each display screen 5 is electrically connected to the PCB board 4. A power supply is provided on the other side of the PCB board 4, and the power supply is electrically connected to the PCB board 4.

[0024] Please refer to Figure 3 The power supply unit includes at least one battery slot 6 and a disposable battery 7 adapted to each battery slot 6. Each disposable battery 7 is installed in a corresponding battery slot 6. Each disposable battery 7 is electrically connected to the PCB board 4 through the battery slot 6. In this embodiment, there are two battery slots 6 and two disposable batteries 7.

[0025] Please refer to Figure 4 The real-time clock chip 9 and the microcontroller 10 are both arranged on the side of the PCB board where the battery slot 6 is provided. The real-time clock chip 9 is located at one end of the PCB board, and the microcontroller 10 is located in the middle of the PCB board. The real-time clock chip 9 and the microcontroller 10 are evenly electrically connected to the PCB board 4. The real-time clock chip 9 is used to cooperate with each display screen 5 to realize timing. The use of the real-time clock chip 9 is a relatively common existing technology, so it will not be described in detail. At the same time, the microcontroller 10 stores a control program that meets the timing requirements.

[0026] A spare rechargeable battery 8 is also provided on one side of the PCB board 4 where the battery slot 6 is provided. The spare rechargeable battery 8 is electrically connected to the PCB board 4 and is used to keep the real-time clock chip 9 and the display screen 5 operating when the disposable battery 7 is replaced, thereby preventing the timing from stopping. It should be noted that the spare rechargeable battery 8 only operates when the disposable battery 7 is replaced or is out of power. It is controlled by a program stored in the microcontroller 10. This control is a relatively common prior art and will not be described in detail here.

[0027] An end of the PCB board 4 away from the real-time clock chip 9 is provided with two spring pins 11 facing each other; a avoidance hole is provided on the blocking cover 2 at the corresponding end of the shell tube 1, and a pull pin 3 is inserted into the avoidance hole. When the pull pin 3 is inserted into the corresponding blocking cover 2, the end thereof located inside the corresponding blocking cover 2 is located between the two spring pins 11, and the two spring pins 11 are contracted, thereby making the two spring pins 11 connected to each other through the pull pin 3. When the two spring pins 11 are connected to each other, the PCB board 4 is in a conductive circuit state, and all components work evenly. When timing starts, the pull pin 3 is pulled out to disconnect the two spring pins 11. At this time, the PCB board 4 and all components thereon start working and timing.

[0028] A durable timer in this embodiment is used as follows: when timing is required, the pin 3 is pulled out, and each component starts working under the control of the microcontroller 10; when the disposable battery 7 is out of power and needs to be replaced, the discarded disposable battery 7 is removed, and the spare rechargeable battery 8 starts working, allowing each component to continue timing. When a new disposable battery 7 is installed, the spare rechargeable battery 8 stops working, and the new disposable battery 7 replenishes the power lost by the spare rechargeable battery 8 for use next time.

[0029] In this document, directional terms such as front, back, top, and bottom are defined based on the positions of components in the accompanying drawings and relative to each other, and are intended only for clarity and convenience in describing the technical solution. It should be understood that the use of these directional terms should not limit the scope of protection claimed in this application.

[0030] In the absence of conflict, the above embodiments and features in the embodiments may be combined with each other.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A durable timer, characterized in that The device comprises a PCB, a real-time clock chip, a microcontroller, and a backup rechargeable power supply. The PCB is provided with at least one display screen on one side and a power supply on the other side. The real-time clock chip and the backup rechargeable power supply are provided at one end of one side of the PCB, and the microcontroller is provided at the other end. Two spring-loaded ejector pins facing each other are provided at one end of the PCB, with a pull pin provided between the two spring-loaded ejector pins. The pull pin abuts against the two spring-loaded ejector pins, connecting the two spring-loaded ejector pins via the pull pin, thereby forming a conductive loop on the PCB and rendering it inoperative. The power supply unit includes at least one battery slot and a disposable battery adapted to each battery slot, and each disposable battery is installed in the corresponding battery slot; The device further comprises a housing tube, wherein both ends of the housing tube are provided with blocking covers, the PCB board is accommodated in the housing tube, and both ends of the PCB board are fixed with adapter blocks, and the PCB board is detachably fixedly connected to the two blocking covers via the two adapter blocks; A circumvention hole is provided on one of the blocking covers, and the pull pin is inserted into the corresponding blocking cover through the circumvention hole and abuts against the two spring ejectors.

2. A durable timer according to claim 1, characterized in that: A sealing O-ring is provided in each of the sealing covers.

3. A durable timepiece according to claim 1, characterized in that: The portion of the pull pin located in the avoidance hole is provided with a sealing O-ring.

4. A durable timepiece according to claim 1, characterized in that: The outer shell tube is a transparent borosilicate tube.

5. A durable timepiece according to claim 1, characterized in that: The pull pin is made of metal material.

6. A durable timepiece according to claim 1, characterized in that: The model of the microcontroller is STM32L053.

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