Improved magnetic coding distance measuring assembly and magnetic coding limiting device of sliding door

Abstract

The utility model provides an improved magnetic coding distance measuring assembly. The improved magnetic coding distance measuring assembly comprises a magnet, a magnetic coding chip used for detecting the number of rotation turns of the magnet, and an MCU chip used for storing the number of rotation turns. The magnetic coding chip and the MCU chip are installed on the PCB, and the magnet is located in the detection range of the magnetic coding chip. The battery is used for supplying power to the magnetic coding chip and the MCU chip; and the battery is electrically connected with the magnetic coding chip and the MCU chip. According to the improved magnetic coding distance measurement assembly, distance measurement is conducted in the mode of detecting the number of turns of rotation of the magnet, the precision requirement of a sliding door for the gear change ratio can be lowered, the battery continues to supply power to the magnetic coding chip and the MCU chip within the power failure period, it is guaranteed that the improved magnetic coding distance measurement assembly works all the time, and the working efficiency is improved. The influence of power failure on the sliding door is reduced, and use convenience is improved.

Description

Technical field

[0001] The utility model relates to the technical field of sliding doors, in particular to an improved magnetic coding distance measuring component and a magnetic coding limiting device for sliding doors. [Background Technology]

[0002] During actual use, sliding doors may experience malfunctions or power outages. In these cases, it is necessary to open the clutch mechanism to disconnect the drive motor from the transmission chain, allowing the sliding door to be manually pushed to open or close. If the manual push to open or close the sliding door exceeds the preset travel, the electronic control system will be unable to determine the current position of the sliding door. When the electronic control needs to be reset, a malfunction will occur and the door cannot be used. In this case, a manual on-site repair will be arranged, which is inconvenient.

[0003] For example, the prior art CN221722595U discloses a magnetic encoding limit device for a sliding door motor, comprising a drive motor, a driving gear connected to the drive motor by a main transmission assembly, a transmission chain connected to the driving gear, a speed change gear set, a passive gear meshing with the high-speed input end of the speed change gear set, and a magnetic encoding assembly meshing with the low-speed output end of the speed change gear set; through the cooperation of the passive gear, the speed change gear set and the magnetic encoding assembly, the motion state of the active gear or the passive gear can be accurately calculated, thereby transmitting it to the magnetic encoding assembly through the speed change gear set, and then using the cooperation of the magnetic encoding sensor and the magnet, since the maximum rotation range of the magnet is <360°, no matter what position the sliding door is manually moved to, it is within the travel range of the magnetic encoding assembly. However, limiting the movement of the sliding door by controlling the rotation range of the magnet requires high speed ratio accuracy, and the accuracy and manual installation requirements of the gears at all levels are very stringent, thereby increasing costs.

[0004] In view of this, this case conducted an in-depth study on the above issues, which led to the emergence of this case. [Utility Model Content]

[0005] The utility model aims to solve the technical problem in the prior art of limiting the movement of a sliding door by controlling the rotation range of a magnet, which requires high speed ratio accuracy, and provides an improved magnetic encoding distance measurement component.

[0006] The utility model is implemented as follows: an improved magnetic encoding ranging component includes a magnet, a magnetic encoding chip for detecting the number of rotations of the magnet, and an MCU chip for storing the number of rotations; the magnetic encoding chip and the MCU chip are mounted on a PCB board, and the magnet is located within the detection range of the magnetic encoding chip.

[0007] Furthermore, it also includes a battery for powering the magnetic encoding chip and the MCU chip, and the battery is electrically connected to the magnetic encoding chip and the MCU chip.

[0008] Furthermore, the improved magnetic encoding ranging assembly also includes a first cover and a second cover that can cover each other; the PCB board is assembled on the first cover by fasteners, and the second cover is formed with a first accommodating cavity for placing the battery and a second accommodating cavity for placing the terminal gear, and the magnet is installed on the terminal gear.

[0009] Furthermore, the first cover body and the second cover body are detachably connected.

[0010] Furthermore, the terminal gear is formed with a boss, and the boss is formed with an assembly groove for assembling a magnet, and the assembled magnet is coaxial with the center of the terminal gear.

[0011] Furthermore, after the first cover body and the second cover body are closed, the magnet and the magnetic encoding chip are arranged opposite to each other, and the relative distance between them is less than 1 mm.

[0012] On the other hand, a magnetic coding limit device for a sliding door includes a driving motor, a main transmission shaft, a driving gear, a passive gear, a transmission chain, a speed change gear assembly, and an improved magnetic coding ranging assembly; one end of the main transmission shaft is connected to the output shaft of the driving motor through a turbine, the driving gear and the passive gear are coaxially arranged, the driving gear and the passive gear are fixed to the other end of the main transmission shaft and rotate synchronously with the main transmission shaft; the high-speed output end of the speed change gear assembly is meshed and connected with the passive gear, and the low-speed output end of the speed change gear assembly is meshed and connected with the terminal gear of the improved magnetic coding ranging assembly; the driving gear is meshed and connected with the transmission chain, and the transmission chain is further connected to the sliding door; the driving motor drives the driving gear and the transmission chain to move to realize the opening or closing of the sliding door, and the moving distance of the sliding door is transmitted to the improved magnetic coding ranging assembly through the passive gear.

[0013] The advantages of the present invention are that the improved magnetic encoding ranging component of the present invention adopts the method of detecting the number of rotations of the magnet to measure the distance instead of the traditional method of collecting the rotation angle of the magnet, which not only reduces the accuracy requirements of the sliding door on the gear ratio, but also the battery continues to power the magnetic encoding chip and the MCU chip during the power outage period, ensuring that the improved magnetic encoding ranging component continues to work, reducing the impact of power outages on the sliding door, and increasing convenience of use.

Brief Description of the Drawings

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is one of the exploded views of the improved magnetic encoding ranging component in the utility model.

[0016] Figure 2 This is the second exploded view of the improved magnetic encoding ranging component in the utility model.

[0017] Figure 3 It is a partial top view of the improved magnetic encoding ranging component in the utility model.

[0018] Figure 4 It is a structural diagram of the magnetic coding limit device of the sliding door in the utility model.

[0019] Driving motor 201, main transmission shaft 202, driving gear 203, driven gear 204, transmission chain, speed change gear assembly 205,

[0020] Improved magnetic encoding ranging component 100, magnet 1, magnetic encoding chip 2, PCB board 3, MCU chip 4, battery 5, first cover 61, second cover 62, first accommodating cavity 63, second accommodating cavity 64, terminal gear 7, boss 71, assembly groove 72. [Specific implementation method]

[0021] In order to better understand the technical solution of the present invention, the technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0022] It should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of these embodiments and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. In addition, the terms "first," "second," and the like are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, features defined as "first," "second," and the like may explicitly or implicitly include one or more of such features.

[0023] See also Figure 4 As shown, the present invention provides a magnetic coding limit device 200 for a sliding door, comprising a drive motor 201, a main transmission shaft 202, a driving gear 203, a driven gear 204, a transmission chain (not shown), a speed change gear assembly 205, and an improved magnetic coding distance measurement assembly 100; one end of the main transmission shaft 202 is connected to the output shaft of the drive motor 201 through a turbine, the driving gear 203 and the driven gear 204 are coaxially arranged, and the driving gear 203 and the driven gear 204 are fixed to the other end of the main transmission shaft 202 and rotate synchronously with the main transmission shaft 202. Preferably, the transmission chain has two forms: a rack and a chain.

[0024] The high-speed output end of the speed change gear assembly 205 is meshed with the passive gear 204, and the low-speed output end of the speed change gear assembly 205 is meshed with the terminal gear 7 of the improved magnetic encoding ranging assembly 100; the driving gear 203 is meshed with the transmission chain, which is in turn connected to the sliding door; the drive motor 201 drives the driving gear 203 and the transmission chain to move, thereby opening or closing the sliding door, and the movement distance of the sliding door is transmitted to the improved magnetic encoding ranging assembly 100 through the passive gear 204.

[0025] See also Figures 1 to 3 As shown, the present invention also provides an improved magnetic encoding ranging assembly 100, comprising a magnet 1, a magnetic encoding chip 2 for detecting the number of rotations of the magnet 1, and an MCU chip 4 for storing the number of rotations; the magnetic encoding chip 2 and MCU chip 4 are mounted on a PCB board 3, and the magnet 1 is located within the detection range of the magnetic encoding chip 2. The assembly also includes a battery 5 for powering the magnetic encoding chip 2 and the MCU chip 4. The battery 5 is electrically connected to the magnetic encoding chip 2 and the MCU chip 4. After a power outage, the battery 5 supplies power to the magnetic encoding chip 2 and the MCU chip 4, ensuring that the magnetic encoding chip 2 and the MCU chip 4 continue to operate. Since the magnetic encoding chip 2 itself has no storage space and cannot store data on the number of rotations, the MCU chip 4 is provided so that the data on the number of rotations sent by the magnetic encoding chip 2 is stored in the MCU chip 4 to prevent the number of rotations from being reset to zero.

[0026] The improved magnetic encoding ranging component 100 of the present invention adopts the method of detecting the number of rotations of the magnet 1 to measure the distance instead of the traditional method of collecting the rotation angle of the magnet 1. It can not only reduce the accuracy requirements of the sliding door on the gear ratio, but also the battery 5 continues to power the magnetic encoding chip 2 and the MCU chip 4 during the power outage period, ensuring that the improved magnetic encoding ranging component 100 is always working, reducing the impact of power outages on the sliding door, and increasing convenience of use.

[0027] In the present invention, the improved magnetic encoding ranging assembly 100 further includes a first cover 61 and a second cover 62 that can cover each other, thereby protecting the internal parts of the improved magnetic encoding ranging assembly 100 , thereby preventing dust and improving service life.

[0028] In the present invention, the first cover 61 and the second cover 62 are detachably connected to facilitate replacement of the battery 5 .

[0029] In the present invention, the PCB board 3 is assembled on the first cover 61 by fasteners. The second cover 62 is formed with a first accommodating cavity 63 for placing the battery 5 and a second accommodating cavity 64 for placing the terminal gear 7. The magnet 1 is mounted on the terminal gear 7. The terminal gear 7 is driven to rotate by the speed change gear set, thereby driving the magnet 1 to rotate synchronously.

[0030] In the present invention, the terminal gear 7 is formed with a boss 71, and the boss 71 is formed with an assembly groove 72 for assembling the magnet 1. The assembled magnet 1 is coaxial with the center of the terminal gear 7, ensuring that the magnet 1 does not rotate eccentrically, thereby increasing the accuracy of counting the number of rotations of the magnet 1.

[0031] In the present invention, after the first cover 61 and the second cover 62 are closed, the magnet 1 and the magnetic encoding chip 2 are arranged opposite to each other, and the relative distance is less than 1 mm, which ensures the accuracy of the sensing data and further improves the accuracy of counting the number of rotations of the magnet 1.

[0032] Although the specific implementation methods of the present invention are described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An improved magnetic encoding ranging component, characterized in that: The device comprises a magnet, a magnetic encoding chip for detecting the number of rotations of the magnet, and an MCU chip for storing the number of rotations; the magnetic encoding chip and the MCU chip are mounted on a PCB board, and the magnet is located within the detection range of the magnetic encoding chip.

2. The improved magnetic encoding ranging assembly according to claim 1, characterized in that: It also includes a battery for powering the magnetic encoding chip and the MCU chip, and the battery is electrically connected to the magnetic encoding chip and the MCU chip.

3. The improved magnetic encoding ranging assembly according to claim 2, characterized in that: The improved magnetic encoding ranging assembly also includes a first cover body and a second cover body that can cover each other; the PCB board is assembled on the first cover body by fasteners, and the second cover body is formed with a first accommodating cavity for placing the battery and a second accommodating cavity for placing the terminal gear, and the magnet is installed on the terminal gear.

4. The improved magnetic encoding ranging assembly according to claim 3, characterized in that: The first cover body and the second cover body are detachably connected.

5. The improved magnetic encoding ranging assembly according to claim 4, characterized in that: The terminal gear is formed with a boss, and the boss is formed with an assembly groove for assembling a magnet. The assembled magnet is coaxial with the center of the terminal gear.

6. The improved magnetic encoding ranging assembly according to claim 5, characterized in that: After the first cover body and the second cover body are closed, the magnet and the magnetic encoding chip are arranged opposite to each other, and the relative distance between them is less than 1 mm.

7. A magnetic coding limit device for a sliding door, characterized by: It includes a driving motor, a main transmission shaft, a driving gear, a passive gear, a transmission chain, a speed change gear assembly, and the improved magnetic encoding ranging assembly according to any one of claims 1 to 6; One end of the main transmission shaft is connected to the output shaft of the drive motor through a turbine, and the driving gear and the driven gear are coaxially arranged. The driving gear and the driven gear are fixed to the other end of the main transmission shaft and rotate synchronously with the main transmission shaft; The high-speed output end of the speed change gear assembly is meshed and connected with the passive gear, and the low-speed output end of the speed change gear assembly is meshed and connected with the terminal gear of the improved magnetic encoding ranging assembly; The driving gear is meshed with the transmission chain, which is then connected to the sliding door; the drive motor drives the driving gear and the transmission chain to move, thereby opening or closing the sliding door, and the moving distance of the sliding door is transmitted to the improved magnetic encoding ranging component through the passive gear.

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