Magnetic latching relay and control method

Abstract

The invention discloses a magnetic latching relay and a control method. The magnetic latching relay comprises an outer shell and arranged pins, and a main control chip, an Ethernet communication module and a Wi-Fi communication module are arranged in the outer shell; and an inner cavity of the storage groove is rotationally connected with a protection plate, a protection groove is formed in the center of the front face of the protection plate, and an elastic clamping head is installed on the inner wall of the protection groove. When the magnetic latching relay is used or not used, the protection plate is rotated outwards on the storage groove of the outer shell, so that the protection plate moves towards the position of the corresponding pin, the pin enters the protection groove through the moving force of the protection plate towards the pin, the elastic clamping head is tightly attached to the surface of the pin, and the pin enters the protection groove through the storage groove and the protection plate. The pins can be protected, the damage phenomenon caused by collision and the like is avoided, the space occupation of the outer shell is prevented from being increased, and use and operation are facilitated.

Description

Technical Field

[0001] The present invention relates to relay control, and in particular to a magnetic latching relay and a control method thereof. Background Art

[0002] A relay is an electrical control device that, when the change in the input quantity (stimulation quantity) reaches a specified level, causes a predetermined step change in the controlled quantity in the electrical output circuit. Simply put, it's like an "electrical switch," but it's controlled not by manual operation but by an electrical signal or other physical quantity (such as temperature or pressure). A relay typically consists of an iron core, a coil, an armature, and contact springs. When the coil is energized, it generates a magnetic field, which attracts the armature, causing the contacts to close or open, thus controlling the circuit's on / off state.

[0003] A typical relay usage procedure involves correctly connecting the relay's coil, contacts, and other components to the controlled circuit according to the wiring diagram. Install the relay in the appropriate location and secure it securely with screws or other fasteners. Power the relay on and observe its operating status. Under normal circumstances, when the coil is energized, the armature should close and the contacts should operate. When the coil is de-energized, the armature should release and the contacts should reset. Use a multimeter or other tool to test the contact resistance, insulation resistance, and other performance parameters. The advantage of a relay is its ability to convert electrical signals into mechanical motion, thereby controlling the on / off state of a circuit. This conversion capability makes relays widely used in automated control systems, enabling remote control and signal transmission, making operation more convenient and safer. However, a disadvantage is that most commercially available relays are limited to a single communication method, such as Wi-Fi, and cannot meet user needs for multiple communication methods. These relays also have limitations in their control functions, such as the inability to implement complex logic control or to interact with other devices. Therefore, a magnetic latching relay and control method are proposed. Summary of the Invention

[0004] The present invention provides the following technical solution: a magnetic latching relay, comprising: An outer shell, and pins arranged on the lower surface of the outer shell, wherein the outer shell is equipped with a main control chip, an Ethernet communication module, a Wi-Fi communication module, a Bluetooth communication module, a permanent magnet and an electromagnetic coil; The storage slot is provided at the lower part of the front and back of the outer shell, and the lower part of the inner cavity of the storage slot is rotatably connected to a protective plate, and a protective slot is provided in the center of the front of the protective plate, and elastic clamps are evenly installed on the left and right inner walls of the protective slot. When the magnetic latching relay is finished or not in use, the protective plate is rotated outward on the storage slot of the outer shell to move the protective plate toward the corresponding pin position, and the pin is moved into the interior of the protective slot through the moving force of the protective plate toward the pin. The elastic clamp fits tightly against the surface of the pin. When the pin needs to be used, the protective plate is rotated back into the interior of the storage slot to separate the protective slot from the pin. Permanent magnet: The magnetic latching relay contains a permanent magnet that is used to generate a stable magnetic field to help the contacts remain in their final position; electromagnetic coil: The electromagnetic coil is one of the key components of the magnetic latching relay. When the coil is energized, the magnetic field generated will overcome the magnetic field of the permanent magnet, causing the contacts to switch from the current state to the opposite state. Once the coil is de-energized, the magnetic field of the permanent magnet will keep the contacts in their current state. The new position does not require continuous power supply, and the operation of the magnetic latching relay can adopt the existing technical solutions, so it will not be described in detail here. Three communication methods can be used and switched through the main control chip, Ethernet communication module, Wi-Fi communication module and Bluetooth communication module. On the one hand, this magnetic latching relay integrates three communication methods: Ethernet, Wi-Fi and Bluetooth, and can realize remote control of the relay through different communication methods. In addition, the magnetic latching relay has significant advantages over ordinary relays, including low power consumption, high stability, long life and fast response. On the other hand, through the storage slot and protective plate, not only can the pins be protected to avoid damage caused by collision, etc., but also the space occupied by the outer shell can be avoided, which is convenient for use and operation.

[0005] Preferably, a rotating shaft is rotatably connected to the lower portion of the inner cavity of the storage tank, and the lower surface of the rotating shaft is connected to the protective plate. The protective plate rotates in the storage tank via the rotating shaft.

[0006] Preferably, a slot is provided on the upper front portion of the protective plate, and the inner cross section of the slot is square. The protective plate can be connected to the corresponding structure through the slot, thereby ensuring the stability of the protective plate in the storage slot.

[0007] Preferably, a limiting groove is provided at the center of the front and back sides of the outer shell, and the limiting groove is connected to the corresponding receiving groove, so that the structure in the limiting groove can be moved into the receiving groove.

[0008] Preferably, positioning grooves are provided on both left and right sides of the inner wall of the limiting groove, and the inner cavity of the limiting groove is slidably connected to a limiting rail. The limiting rail can move up and down along the limiting groove.

[0009] Preferably, the position and shape of the limit rails correspond to the slots, and positioning rails are installed on both sides of the limit rails. When the protective plate rotates back into the receiving slot via the rotating shaft, the limit rails can be lowered along the limit slots into the receiving slots, so that the limit rails are inserted into the slots, and the positioning rails rise and fall in the same direction as the limit rails.

[0010] Preferably, the positions and relationship of the positioning rail and the positioning slot correspond to each other, and the positioning rail and the positioning slot are slidably connected. When the positioning rail is lifted and lowered in the same direction as the limit rail, the positioning rail moves along the positioning slot.

[0011] Preferably, the positioning groove is communicated with the corresponding receiving groove, and the inner cavity cross section of the positioning groove is square. The positioning rail enters the receiving groove along the positioning groove.

[0012] Preferably, an extrusion spring is provided above the limit rail, and the two ends of the extrusion spring are connected to the top inner wall of the limit slot and the upper surface of the limit rail, respectively. The extrusion spring drives the limit rail downward in the limit slot, thereby ensuring the stability of the insertion of the limit rail and the slot.

[0013] The present invention provides a magnetic latching relay control method, based on the above magnetic latching relay, comprising the following steps: S1. System initialization: Hardware initialization: Start the magnetic latching relay and initialize its internal hardware components, including the main control chip, Ethernet interface, Wi-Fi module, Bluetooth module and drive circuit; Software initialization: load and run the relay control program, initialize the network communication module, configure network communication parameters, and establish a connection with the remote server; S2. Communication method selection: Detection of available communication methods: The relay control program detects the currently available communication methods, including Ethernet, Wi-Fi, and Bluetooth; Prioritize communication mode: Select the optimal communication mode based on the preset priority or current network environment. If both Ethernet and Wi-Fi are available, Ethernet is preferred to ensure smooth network operation. If the network is poor, Bluetooth is selected for control. S3. Receive control instructions: Monitor control commands: The relay monitors control commands from the remote server via the selected communication method; Parsing control instructions: After receiving the control instructions, the relay control program parses them and extracts the control parameters, including: relay switch status and control time; S4. Execute control operations: Controlling the relay status: Based on the parsed control parameters, the relay control program controls the on / off status of the magnetic latching relay contacts through the driver circuit. When an "open" command is received, the relay contacts are closed by pulling down the specific GPIO pin level; when an "off" command is received, the relay contacts are opened. Status feedback: After executing the control operation, the relay can feedback the current status, including the on / off status of the relay contacts and error information, to the remote server through the selected communication method; S5, Multi-communication mode switching: Monitoring network environment changes: The relay control program continuously monitors changes in the current network environment, including: network stability and signal strength; Dynamic switching of communication modes: When the current communication mode cannot meet the control requirements, including: network disconnection and weak signal, the relay control program can automatically switch to other available communication modes; S6. System maintenance and upgrade: Remote maintenance and monitoring: Through the remote server, the relay can be remotely maintained and monitored, including: viewing the relay's working status, history and fault information; Firmware upgrade: Using OTA upgrade technology, the remote server can send the new firmware version to the relay. After receiving the upgrade command, the relay automatically downloads and installs the new firmware.

[0014] This control method supports independent operation of Ethernet, Wi-Fi, and Bluetooth modes. When the primary communication link is disconnected, it switches to the secondary link in milliseconds to ensure zero loss of control instructions. At the same time, it adopts a hybrid transmission mode of TCP / IP and Bluetooth SPP protocol to implement dual-channel redundant transmission of key control instructions to avoid malfunction caused by single-link packet loss.

[0015] In summary, compared with the prior art, the present invention provides a magnetic latching relay and a control method, which have the following beneficial effects: 1. The magnetic latching relay of the present invention, when the magnetic latching relay is used up or not in use, the protective plate is rotated outward on the storage slot of the outer shell to move the protective plate toward the corresponding pin position, and the pin is moved into the interior of the protective slot by the moving force of the protective plate toward the pin, and the elastic clamp is tightly fitted with the surface of the pin. When the pin needs to be used, the protective plate is rotated back into the interior of the storage slot to separate the protective slot from the pin. Three communication modes can be used and switched through the main control chip, Ethernet communication module, Wi-Fi communication module and Bluetooth communication module. On the one hand, the magnetic latching relay integrates three communication modes of Ethernet, Wi-Fi and Bluetooth, and can realize remote control of the relay through different communication modes. In addition, the magnetic latching relay has significant advantages over ordinary relays, including low power consumption, high stability, long life and fast response. On the other hand, the storage slot and the protective plate can not only provide protection for the pin to avoid damage caused by collision, but also avoid increasing the space occupied by the outer shell, which is convenient for use and operation. 2. The magnetic latching relay control method of the present invention supports independent operation of Ethernet, Wi-Fi, and Bluetooth modes. When the main communication link is disconnected, it switches to the suboptimal link in milliseconds to ensure zero loss of control instructions. At the same time, it adopts a hybrid transmission mode of TCP / IP and Bluetooth SPP protocol to implement dual-channel redundant transmission of key control instructions to avoid malfunction caused by single-link packet loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the magnetic latching relay of the present invention.

[0017] Figure 2 It is a schematic diagram of the pins and their connection structure of the present invention.

[0018] Figure 3 It is a schematic diagram of the protective plate and its connection structure of the present invention.

[0019] Figure 4 It is a schematic diagram of the connection structure between the pins and the protective plate of the present invention.

[0020] Figure 5 It is a schematic diagram of the cross-sectional structure of the limiting groove of the present invention.

[0021] Figure 6 It is a schematic diagram of the magnetic latching relay control method of the present invention.

[0022] Description of reference numerals: 1. Outer shell; 2. Pins; 3. Storage slot; 4. Rotating shaft; 5. Protective plate; 6. Protective slot; 7. Elastic clamp; 8. Slot; 9. Limit slot; 10. Positioning slot; 11. Extrusion spring; 12. Limit rail; 13. Positioning rail. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 The present invention provides a technical solution, a magnetic latching relay, comprising: The outer shell 1 and the pins 2 are arranged on the lower surface of the outer shell 1, and the outer shell 1 is equipped with a main control chip, an Ethernet communication module, a Wi-Fi communication module, a Bluetooth communication module, a permanent magnet and an electromagnetic coil; The storage slot 3 is provided at the lower part of the front and back of the outer shell 1, and the lower part of the inner cavity of the storage slot 3 is rotatably connected to a protective plate 5, and a protective slot 6 is provided at the center of the front of the protective plate 5, and elastic clamps 7 are evenly installed on the left and right inner walls of the protective slot 6. When the magnetic latching relay is finished or not in use, the protective plate 5 is rotated outward on the storage slot 3 of the outer shell 1 to move the protective plate 5 toward the position of the corresponding pin 2, and the pin 2 is moved into the interior of the protective slot 6 by the moving force of the protective plate 5 toward the pin 2. The elastic clamp 7 fits tightly against the surface of the pin 2. When the pin 2 needs to be used, the protective plate 5 is rotated back into the interior of the storage slot 3 to separate the protective slot 6 from the pin 2. Permanent magnet: The magnetic latching relay contains a permanent magnet that is used to generate a stable magnetic field to help the contacts remain in their final position; electromagnetic coil: The electromagnetic coil is one of the key components of the magnetic latching relay. When the coil is energized, the magnetic field generated will overcome the magnetic field of the permanent magnet, causing the contacts to switch from the current state to the opposite state. Once the coil is de-energized, the magnetic field of the permanent magnet will To keep the contacts in the new position, there is no need for continuous power supply. The operation of the magnetic holding relay can adopt the existing technical solutions, so it will not be described in detail here. Three communication methods can be used and switched through the main control chip, Ethernet communication module, Wi-Fi communication module and Bluetooth communication module; on the one hand, the magnetic holding relay integrates three communication methods of Ethernet, Wi-Fi and Bluetooth, and can realize remote control of the relay through different communication methods, and the magnetic holding relay has significant advantages over ordinary relays, including low power consumption, high stability, long life and fast response; on the other hand, through the storage slot 3 and the protective plate 5, not only can the pin 2 be protected to avoid damage caused by collision, etc., but also the space occupied by the outer shell 1 can be avoided, which is convenient for use and operation.

[0025] See also Figure 3 、 Figure 4 、 Figure 5 The lower part of the inner cavity of the storage slot 3 is rotatably connected to a rotating shaft 4, and the lower surface of the rotating shaft 4 is connected to the protective plate 5. The protective plate 5 rotates in the storage slot 3 via the rotating shaft 4. A slot 8 is provided on the upper front portion of the protective plate 5, and the inner cavity cross-section of the slot 8 is square. The protective plate 5 can be connected to the corresponding structure through the slot 8, thereby ensuring the stability of the protective plate 5 in the storage slot 3. A limiting slot 9 is provided in the center of the front and back sides of the outer shell 1, and the limiting slot 9 is connected to the corresponding storage slot 3. This allows the structure in the limiting slot 9 to move into the storage slot 3. Positioning slots 10 are provided on both sides of the inner wall of the limiting slot 9, and the inner cavity of the limiting slot 9 is slidably connected to a limiting rail 12. The limiting rail 12 can be raised and lowered along the limiting slot 9. The limiting rail 12 corresponds to the position and shape of the slot 8, and positioning rails 13 are installed on both sides of the limiting rail 12. When the protective plate 5 is rotated back into the receiving groove 3 through the rotating shaft 4, the limiting rail 12 can descend along the limiting groove 9 into the receiving groove 3, so that the limiting rail 12 is inserted into the groove 8, and the positioning rail 13 rises and falls in the same direction as the limiting rail 12. The position and relationship of the positioning rail 13 correspond to the positioning groove 10, and the positioning rail 13 is slidably connected to the positioning groove 10. When the positioning rail 13 rises and falls in the same direction as the limiting rail 12, the positioning rail 13 moves along the positioning groove 10. The positioning groove 10 is connected to the corresponding receiving groove 3, and the inner cavity cross-section of the positioning groove 10 is square. The positioning rail 13 enters the receiving groove 3 along the positioning groove 10. An extrusion spring 11 is provided above the limiting rail 12, and the two ends of the extrusion spring 11 are respectively connected to the top inner wall of the limiting groove 9 and the upper surface of the limiting rail 12. The extrusion spring 11 drives the limiting rail 12 to move downward in the limiting groove 9, thereby ensuring the stability of the insertion of the limiting rail 12 and the groove 8.

[0026] See also Figure 6 The present invention provides a magnetic latching relay control method, based on the above magnetic latching relay, comprising the following steps: S1. System initialization: Hardware initialization: Start the magnetic latching relay and initialize its internal hardware components, including the main control chip, Ethernet interface, Wi-Fi module, Bluetooth module and drive circuit; Software initialization: load and run the relay control program, initialize the network communication module, configure network communication parameters, and establish a connection with the remote server; S2. Communication method selection: Detection of available communication methods: The relay control program detects the currently available communication methods, including Ethernet, Wi-Fi, and Bluetooth; Prioritize communication mode: Select the optimal communication mode based on the preset priority or current network environment. If both Ethernet and Wi-Fi are available, Ethernet is preferred to ensure smooth network operation. If the network is poor, Bluetooth is selected for control. S3. Receive control instructions: Monitor control commands: The relay monitors control commands from the remote server via the selected communication method; Parsing control instructions: After receiving the control instructions, the relay control program parses them and extracts the control parameters, including: relay switch status and control time; S4. Execute control operations: Controlling the relay status: Based on the parsed control parameters, the relay control program controls the on / off status of the magnetic latching relay contacts through the driver circuit. When an "open" command is received, the relay contacts are closed by pulling down the specific GPIO pin level; when an "off" command is received, the relay contacts are opened. Status feedback: After executing the control operation, the relay can feedback the current status, including the on / off status of the relay contacts and error information, to the remote server through the selected communication method; S5, Multi-communication mode switching: Monitoring network environment changes: The relay control program continuously monitors changes in the current network environment, including: network stability and signal strength; Dynamic switching of communication modes: When the current communication mode cannot meet the control requirements, including: network disconnection and weak signal, the relay control program can automatically switch to other available communication modes; S6. System maintenance and upgrade: Remote maintenance and monitoring: Through the remote server, the relay can be remotely maintained and monitored, including: viewing the relay's working status, history and fault information; Firmware upgrade: Using OTA upgrade technology, the remote server can send the new firmware version to the relay. After receiving the upgrade command, the relay automatically downloads and installs the new firmware.

[0027] This control method supports independent operation of Ethernet, Wi-Fi, and Bluetooth modes. When the primary communication link is disconnected, it switches to the secondary link in milliseconds to ensure zero loss of control instructions. At the same time, it adopts a hybrid transmission mode of TCP / IP and Bluetooth SPP protocol to implement dual-channel redundant transmission of key control instructions to avoid malfunction caused by single-link packet loss.

[0028] In this solution, when the magnetic latching relay is finished or not in use, the protective plate 5 is rotated outward on the receiving slot 3 of the outer shell 1 to move the protective plate 5 toward the position of the corresponding pin 2, and the moving force of the protective plate 5 toward the pin 2 causes the pin 2 to enter the interior of the protective slot 6. The elastic clamp 7 fits tightly with the surface of the pin 2. When the pin 2 needs to be used, the protective plate 5 is rotated back into the interior of the receiving slot 3 to separate the protective slot 6 from the pin 2. Permanent magnet: The magnetic latching relay contains a permanent magnet that is used to generate a stable magnetic field to help the contacts remain in the final position; electromagnetic coil: The electromagnetic coil is one of the key components of the magnetic latching relay. When the coil is energized, the magnetic field generated will overcome the magnetic field of the permanent magnet. The contacts are switched from the current state to the opposite state. Once the coil is powered off, the magnetic field of the permanent magnet will keep the contacts in the new position without the need for continuous power supply. The operation of the magnetic latching relay can adopt the existing technical solutions, so it will not be described in detail here. Three communication methods can be used and switched through the main control chip, Ethernet communication module, Wi-Fi communication module and Bluetooth communication module. At the same time, it supports independent operation of Ethernet, Wi-Fi and Bluetooth modes. When the main communication link is disconnected, it switches to the suboptimal link in milliseconds to ensure zero loss of control instructions. At the same time, a hybrid transmission mode of TCP / IP and Bluetooth SPP protocol is adopted to implement dual-channel redundant transmission of key control instructions to avoid malfunction caused by single-link packet loss.

[0029] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0030] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A magnetic latching relay, characterized in that: include: An outer shell (1), and pins (2) arranged on the lower surface of the outer shell (1), wherein the outer shell (1) is equipped with a main control chip, an Ethernet communication module, a Wi-Fi communication module, a Bluetooth communication module, a permanent magnet and an electromagnetic coil; The receiving groove (3) is arranged at the lower part of the front and back sides of the outer shell (1), and the lower part of the inner cavity of the receiving groove (3) is rotatably connected to the protective plate (5), and a protective groove (6) is opened at the center of the front side of the protective plate (5), and elastic clamps (7) are evenly installed on the left and right inner walls of the protective groove (6).

2. A magnetic latching relay according to claim 1, characterized in that: The lower portion of the inner cavity of the receiving groove (3) is rotatably connected to a rotating shaft (4), and the lower surface of the rotating shaft (4) is connected to the protective plate (5).

3. The magnetic latching relay according to claim 1, wherein: A card slot (8) is provided on the upper front portion of the protective plate (5), and the inner cavity cross section of the card slot (8) is square in design.

4. A magnetic latching relay according to claim 3, characterized in that: A limiting groove (9) is provided at the center of the front and back surfaces of the outer shell (1), and the limiting groove (9) is communicated with the corresponding receiving groove (3).

5. The magnetic latching relay according to claim 4, characterized in that: Positioning grooves (10) are provided on both the left and right sides of the inner wall of the limiting groove (9), and the inner cavity of the limiting groove (9) is slidably connected to the limiting rail (12).

6. The magnetic latching relay according to claim 5, characterized in that: The position and shape of the position-limiting rail (12) correspond to those of the slot (8), and positioning rails (13) are installed on both the left and right sides of the position-limiting rail (12).

7. The magnetic latching relay according to claim 6, characterized in that: The positions and relationships of the positioning rail (13) and the positioning groove (10) correspond to each other, and the positioning rail (13) and the positioning groove (10) are slidably connected.

8. The magnetic latching relay according to claim 7, characterized in that: The positioning groove (10) is communicated with the corresponding receiving groove (3), and the inner cavity cross section of the positioning groove (10) is square in design.

9. The magnetic latching relay according to claim 5, characterized in that: An extrusion spring (11) is provided above the limiting rail (12), and two ends of the extrusion spring (11) are respectively connected to the top inner wall of the limiting groove (9) and the upper surface of the limiting rail (12).

10. A magnetic latching relay control method, based on the magnetic latching relay according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. System initialization: Hardware initialization: Start the magnetic latching relay and initialize the hardware components, including the main control chip, Ethernet interface, Wi-Fi module, Bluetooth module and drive circuit; Software initialization: load and run the relay control program, initialize the network communication module, configure network communication parameters, and establish a connection with the remote server; S2. Communication method selection: Detection of available communication modes: The relay control program detects the currently available communication modes; Prioritize communication mode: select the optimal communication mode based on the preset priority or current network environment; S3. Receive control instructions: Monitor control commands: The relay monitors control commands from the remote server via the selected communication method; Parsing control instructions: After receiving the control instructions, the relay control program parses them and extracts the control parameters; S4. Execute control operations: Control relay status: Based on the analyzed control parameters, the relay control program controls the on / off status of the contacts of the magnetic latching relay through the drive circuit; Status feedback: After executing the control operation, the relay can send the current status through the selected communication method; S5, Multi-communication mode switching: Monitoring network environment changes: The relay control program continuously monitors changes in the current network environment, including: network stability and signal strength; Dynamic switching of communication modes: When the current communication mode cannot meet the control requirements, the relay control program can automatically switch to other available communication modes; S6. System maintenance and upgrade: Remote maintenance and monitoring: The relay can be remotely maintained and monitored through the remote server; Firmware upgrade: Using OTA upgrade technology, the remote server can send the new firmware version to the relay. After receiving the upgrade command, the relay automatically downloads and installs the new firmware.

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