Magnetic latching relay convenient to install
By introducing a limit component, including a positioning post, a fixing post, and a limit part, into the magnetic latching relay, the problem of low installation efficiency of the magnetic latching relay is solved, and efficient and stable circuit board connection and heat management are achieved.
Patent Information
- Application Number
- CN202520104536.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-16
AI Technical Summary
The lack of a positioning component during installation of magnetic latching relays results in low installation efficiency due to poor alignment of the pins with the circuit board, thus affecting work efficiency.
A magnetic latching relay that is easy to install is designed. It adopts a limiting component including a positioning post and a fixing post. The positioning post is inserted into the circuit board for initial alignment. The fixing post is spaced to prevent heat transfer. The limiting part and the abutment block prevent direct contact with the circuit board. The pressing part is easy to disassemble.
This improves the installation efficiency and stability of the magnetic latching relay and circuit board, reduces wear, prevents heat transfer, and ensures stable system operation.
Smart Images
Figure CN223771052U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of magnetic latching relays, and more particularly to a magnetic latching relay that is easy to install. Background Technology
[0002] A magnetic latching relay is an electrical control device that uses the magnetic force of an electromagnet to control the automatic connection and disconnection of a circuit. It activates the contacts and maintains their state by applying a positive or negative DC voltage to the coil.
[0003] Magnetic latching relays are typically PCB-mounted, meaning they can be directly mounted on a circuit board. Connecting the magnetic latching relay to the circuit board allows for the use of other electronic components on the board (such as resistors, capacitors, diodes, etc.) to construct complex control logic. For example, the coil of the magnetic latching relay can be driven by transistors or other switching elements on the circuit board, thereby achieving precise control of the relay contact state.
[0004] However, in actual production, when installing the pins of the magnetic latching relay into the circuit board, the magnetic latching relay lacks a positioning component, which often requires a lot of time to align the pins of the magnetic latching relay with the circuit board and install it. Therefore, the existing installation method of magnetic latching relay and circuit board reduces work efficiency. Utility Model Content
[0005] To facilitate the installation of the pins of the magnetic latching relay onto the circuit board, an easy-to-install magnetic latching relay is provided.
[0006] The above-mentioned objective of this application is achieved through the following technical solution:
[0007] A magnetic latching relay that is easy to install includes a relay body, the relay body including a top cover, a micro-motion pin and a control pin provided on the top cover, both of which are inserted into a circuit board, and a limiting component including a positioning post, one end of the positioning post being perpendicularly connected to the top cover, and the other end being inserted into the circuit board, and the axial length of the positioning post being greater than the distance from the ends of the micro-motion pin and the control pin to the top cover.
[0008] By adopting the above technical solution, when connecting and installing the relay body to the circuit board, the positioning post will first insert into the circuit board. The positioning post limits the circuit board, so the circuit board only needs to move towards the top cover to insert the micro-motion pin and control pin into the circuit board. Since the micro-motion pin and control pin are small and the efficiency of inserting them into the circuit board is low, inserting the positioning post into the circuit board first improves the work efficiency of installing the circuit board and the relay body.
[0009] Optionally, the number of positioning posts is four, and the four positioning posts are respectively installed around the top cover.
[0010] By adopting the above technical solution, the four positioning posts simultaneously limit the circuit board, resulting in a better limiting effect. At the same time, the four positioning posts are located around the top cover, which increases the stability of the connection between the micro-motion pins, control pins and the circuit board.
[0011] Optionally, the limiting component includes a fixing post, the two ends of which are fixedly connected to the top cover and the positioning post, respectively, and the outer diameter of the fixing post is larger than the outer diameter of the positioning post.
[0012] By adopting the above technical solution, the relay body will generate heat when working for a long time or when passing a large current. The heat generated by the relay body will be transferred to the circuit board through the top cover, causing the circuit board's performance to degrade. Therefore, a fixing post is set to increase the gap between the top cover and the circuit board, so that the circuit board and the relay body can have a stable output connection.
[0013] Optionally, the limiting component includes a fixing plate and a latch. The fixing plate is fixedly connected to the side wall of the top cover. The latch includes a limiting part, which is perpendicular to the fixing plate. One end of the limiting part is fixedly connected to the fixing plate, and the other end extends upward. The end of the limiting part bends and extends toward the top cover, and the length of the end of the limiting part perpendicular to the top cover is greater than the distance from the end of the micro-motion pin and the control pin to the top cover.
[0014] By adopting the above technical solution, when connecting and installing the relay body and the circuit board, the circuit board moves towards the relay body. The circuit board will first be engaged with the limiting parts on both sides of the top cover. The limiting parts on both sides of the top cover limit the circuit board and prevent it from moving. This makes it easier for the circuit board to be inserted into the micro-motion pins and control pins towards the top cover. The installation process of the circuit board and the relay body can be completed without too much alignment, which improves the installation efficiency.
[0015] Optionally, the end of the limiting portion facing the top cover has a smooth transition.
[0016] By adopting the above technical solution, the circuit board can slide past the limiting part on both sides, which facilitates the engagement of the circuit board with the limiting part and reduces the wear caused when the circuit board slides past the limiting part.
[0017] Optionally, the latch includes a pressing part, which is perpendicular to the fixing plate. One end of the pressing part is fixedly connected to the limiting part, and the other end protrudes in the direction away from the side wall of the top cover.
[0018] By adopting the above technical solution, during maintenance, it is often necessary to separate the circuit board from the limiting part. Pressing the pressing part towards the side wall of the top cover will move the limiting part away from the circuit board, thereby unlocking the connection between the circuit board and the limiting part, allowing the circuit board to be removed from the limiting part.
[0019] Optionally, the latch includes an abutment block, which is parallel to the fixing plate. One end of the abutment block is fixedly connected to the limiting part, and the other end extends away from the limiting part.
[0020] By adopting the above technical solution, the relay body will generate heat when working for a long time or when passing a large current. After the circuit board slides past the limit part, the abutment block will abut the circuit board, preventing the circuit board from moving further, increasing the gap between the top cover and the circuit board, and preventing the heat generated by the relay body from being transferred to the circuit board through the top cover, so that the circuit board and the relay body can have a stable output connection.
[0021] Optionally, the end of the positioning post facing away from the top cover has a smooth transition.
[0022] By adopting the above technical solution, when the positioning post is inserted into the circuit board, the edges and corners of the positioning post are prevented from causing wear to the circuit board, thus improving the safety performance of the insertion between the circuit board and the positioning post.
[0023] In summary, this application has at least the following beneficial effects:
[0024] 1. The positioning post limits the circuit board, so the circuit board only needs to move towards the top cover to connect the micro-switches and control pins to the circuit board. This reduces the time required to align the micro-switches and control pins with the circuit board, improving the efficiency of the circuit board and relay installation.
[0025] 2. The limiting component limits the circuit board, so the circuit board only needs to move towards the top cover to connect the micro-motion pins and control pins to the circuit board. It does not take much time to align the micro-motion pins and control pins with the circuit board. At the same time, pressing the pressing part can lift the limiting part, making it easy to remove the circuit board from the limiting component. Attached Figure Description
[0026] Figure 1 An exploded view of the relay body and circuit board assembly;
[0027] Figure 2 Schematic diagram of a magnetic latching relay Figure 1 ;
[0028] Figure 3 Schematic diagram of a magnetic latching relay Figure 2 ;
[0029] Figure 4 for Figure 3 A magnified view of a portion at point A.
[0030] Reference numerals: 1. Relay body; 11. Top cover; 111. Protrusion; 12. Bottom shell; 13. Connecting piece; 14. Micro-motion pin; 15. Control pin; 2. Limiting assembly; 21. Positioning post; 22. Fixing post; 23. Fixing plate; 24. Lock; 241. Limiting part; 242. Pressing part; 243. Abutting block; 244. Limiting block; 3. Circuit board; 4. Fixing assembly; 41. Support rod; 42. Limiting plate; 421. Limiting hole. Detailed Implementation
[0031] The following section provides a more detailed description, in conjunction with the accompanying diagrams:
[0032] Example 1:
[0033] As attached Figure 1 As shown, an easy-to-install magnetic latching relay includes a relay body 1, a limit assembly 2, and a circuit board 3.
[0034] The relay body 1 includes a top cover 11 and a bottom shell 12. The top cover 11 and the bottom shell 12 are fastened together. Three sets of connecting pieces 13 are provided on the side wall of the bottom shell 12. One end of the three sets of connecting pieces 13 is connected to three sets of relay mechanisms inside the bottom shell 12, and the other end of the three sets of connecting pieces 13 is located outside the bottom shell 12 and connected to the wire.
[0035] The top cover 11 is provided with micro-motion pin 14 and control pin 15. One end of the micro-motion pin 14 is connected to the micro-motion switch system inside the bottom shell 12, and the other end of the micro-motion pin 14 extends upward. One end of the control pin 15 is connected to the electrical control device inside the bottom shell 12, and the other end of the control pin 15 extends vertically upward.
[0036] As attached Figure 2 As shown, the limiting component 2 includes a positioning post 21 and a fixing post 22.
[0037] The positioning post 21 is located above the top cover 11. The positioning post 21 is cylindrical in shape. There are four positioning posts 21, which are distributed around the top cover 11. The axial length of the positioning post 21 is greater than the distance from the end of the micro-motion pin 14 and the control pin 15 to the surface of the top cover 11.
[0038] When the circuit board 3 is installed with the relay body 1, the circuit board 3 will first be inserted into the four positioning pins 21. The four positioning pins 21 restrict the circuit board 3 to move only in the axial direction of the positioning pins 21. When the circuit board 3 continues to move towards the top cover 11, the circuit board 3 is simultaneously inserted into the micro-motion pin 14 and the control pin 15. There is no need to align the circuit board 3 with the micro-motion pin 14 and the control pin 15.
[0039] There are four fixed posts 22, each cylindrical in shape. The two ends of each fixed post 22 are fixedly connected to the top cover 11 and the positioning post 21, respectively. The outer diameter of the fixed post 22 is larger than that of the positioning post 21. This increases the gap between the top cover 11 and the circuit board 3, preventing the heat generated by the relay body 1 from being transferred to the circuit board 3 through the top cover 11, thus enabling the circuit board 3 and the relay body 1 to have a stable output connection.
[0040] The working principle of this embodiment one:
[0041] When installing the circuit board 3 with the relay body 1, the circuit board 3 moves toward the top cover 11. The circuit board 3 will first be inserted into the four positioning pins 21. Then, you only need to continue to push the circuit board 3 toward the top cover 11. The four positioning pins 21 restrict the circuit board 3 to move only in the axial direction of the positioning pins 21, ensuring that the circuit board 3 is inserted into the micro-motion pin 14 and the control pin 15. At the same time, the fixing pin 22 will abut against the circuit board 3 to prevent the circuit board 3 from directly contacting the top cover 11.
[0042] Example 2:
[0043] As attached Figure 3 and attached Figure 4 As shown, this second embodiment is an improvement on the limiting component 2 based on the first embodiment.
[0044] The limiting component 2 includes a fixing plate 23 and a latch 24.
[0045] There are four fixing plates 23, which are long strips in shape. The four fixing plates 23 are fixedly connected to the four sides of the top cover 11. A latch 24 is fixedly connected to the side of the fixing plate 23 facing away from the top cover 11. The latch 24 is perpendicular to the fixing plate 23.
[0046] The latch 24 includes a limiting part 241, an abutment block 243, and a limiting block 244.
[0047] There are four limiting parts 241, which are located above the four fixing plates 23 respectively. The distance from the end of the limiting part 241 to the top cover 11 is greater than the distance from the end of the micro-motion pin 14 and the control pin 15 to the surface of the top cover 11. All four limiting parts 241 extend and bend towards the top cover 11, and the side of the limiting part 241 facing away from the fixing plate 23 is a curved slope, which makes it easy for the circuit board 3 to slide over the limiting part 241.
[0048] There are four abutment blocks 243. One end of each abutment block 243 is fixedly connected to one of the four limiting parts 241. The other ends of each abutment block 243 extend horizontally away from the limiting parts 241. The abutment blocks 243 prevent the circuit board 3 from directly contacting the top cover 11, increase the gap between the top cover 11 and the circuit board 3, and prevent the heat generated by the relay body 1 from being transferred to the circuit board 3 through the top cover 11, so that the circuit board 3 and the relay body 1 can have a stable output connection.
[0049] There are four limiting blocks 244. The limiting blocks 244 are block-shaped and are fixedly connected to the upper part of the abutment block 243. The periphery of the limiting blocks 244 is aligned with the periphery of the abutment block 243. When the circuit board 3 is plugged into the micro-motion pin 14 and the control pin 15, the abutment block 243 abuts against the circuit board 3, and the limiting blocks 244 abut against the circuit board 3. In some vibrating environments, the limiting blocks 244 can prevent the circuit board 3 from moving, thus preventing the circuit board 3 from causing the micro-motion pin 14 and the control pin 15 to move and deform.
[0050] The latch 24 includes a pressing part 242. There are four pressing parts 242, which are located below the four fixing plates 23 respectively. One end of the pressing part 242 is fixedly connected to the limiting part 241, and the other end of the pressing part 242 protrudes in the direction away from the top cover 11. During maintenance, pressing the pressing part 242 in the direction of the side wall of the top cover 11 can move the limiting part 241 away from the circuit board 3, thereby allowing the circuit board 3 to be removed from the limiting part 241.
[0051] Below the latch 24, there is also a fixing component 4, which includes a support rod 41 and a limiting plate 42. The limiting plate 42 is located on the four sides of the relay body 1. The limiting plate 42 abuts against the top cover 11 and the bottom shell 12, and the limiting plate 42 can move on the surface of the top cover 11 and the bottom shell 12. The support rod 41 is long and narrow. One end of the support rod 41 is hinged to the end of the pressing part 242, and the other end is hinged to the limiting plate 42. When the pressing part 242 is pressed, the pressing part 242 drives the support rod 41 to move downward, and then the support rod 41 drives the limiting plate 42 to move downward. When the pressing part 242 is released, the pressing part 242 drives the support rod 41 to move upward, and then the support rod 41 drives the limiting plate 42 to move upward.
[0052] A protrusion 111 is fixed on the top cover 11. A limiting hole 421 is opened on the end of the limiting plate 42 away from the support rod 41. The limiting hole 421 is engaged with the protrusion 111. When the limiting plate 42 moves upward, the protrusion 111 is engaged with the limiting hole 421, thereby reinforcing the connection between the top cover 11 and the bottom shell 12. When the limiting plate 42 moves downward, the protrusion 111 slides out from the limiting hole 421, thereby unlocking the connection between the top cover 11 and the bottom shell 12.
[0053] The working principle of this implementation method two is as follows:
[0054] When the circuit board 3 is installed with the relay body 1, the circuit board 3 moves toward the top cover 11. The two sides of the circuit board 3 will first abut against the curved slope of the limiting part 241. Then, as long as the circuit board 3 is pushed to move toward the top cover 11, the circuit board 3 will slide past the limiting part 241 and be inserted into the micro switch pin 14 and the control pin 15. At the same time, the abutting block 243 will abut against the circuit board 3 to prevent the circuit board 3 from directly contacting the top cover 11.
[0055] When the circuit board 3 needs to be disassembled or repaired, simply press the pressing part 242 to move the limiting part 241 away from the top cover 11, so that the circuit board 3 can be taken out away from the top cover 11, thus improving the efficiency of disassembling the circuit board 3.
[0056] In summary: The addition of the limit component 2 eliminates the need to align the circuit board 3 with the smaller micro-motion pins 14 and control pins 15, enabling the installation of the circuit board 3 and relay body 1. This improves the installation efficiency. Simultaneously, the limit component 2 restricts the circuit board 3, preventing vibrations that could lead to system misjudgments or data errors.
[0057] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of protection claimed in this application.
Claims
1. A magnetic latching relay with easy installation, comprising a relay body (1), the relay body (1) comprising a top cover (11), a micro-motion pin (14) and a control pin (15) being arranged above the top cover (11), the micro-motion pin (14) and the control pin (15) being both inserted with a circuit board (3), characterized in that, The limiting assembly (2) comprises positioning columns (21), one end of the positioning columns (21) is connected with the top cover (11) perpendicularly, the other end is inserted with the circuit board (3), and the length of the positioning columns (21) in the axial direction is greater than the distance from the end of the micro-moving pin (14) and the control pin (15) to the top cover (11).
2. A magnetically latched relay for easy installation according to claim 1, characterized in that The number of the positioning columns (21) is four, and the four positioning columns (21) are respectively installed around the top cover (11).
3. A magnetically latched relay for easy installation according to claim 2, characterized in that The limiting assembly (2) comprises a fixing column (22), both ends of the fixing column (22) are fixedly connected with the top cover (11) and the positioning column (21) respectively, and the outer diameter of the fixing column (22) is greater than the outer diameter of the positioning column (21).
4. A magnetically latched relay for easy installation according to claim 1, characterized in that The limiting assembly (2) comprises a fixing plate (23) and a lock catch (24), the fixing plate (23) is fixedly connected with the side wall of the top cover (11), the lock catch (24) comprises a limiting portion (241), the limiting portion (241) is perpendicular to the fixing plate (23), one end of the limiting portion (241) is fixedly connected with the fixing plate (23), the other end extends upward, the end of the limiting portion (241) is curvedly extended towards the direction of the top cover (11), and the length of the end of the limiting portion (241) perpendicular to the top cover (11) is greater than the distance from the end of the micro-moving pin (14) and the control pin (15) to the top cover (11).
5. A magnetically latched relay for easy installation according to claim 4, characterized in that The side of the end of the limiting portion (241) towards the top cover (11) is transitionally smooth.
6. A magnetically latched relay for easy installation according to claim 5, characterized in that The lock catch (24) comprises a pressing portion (242), the pressing portion (242) is perpendicular to the fixing plate (23), one end of the pressing portion (242) is fixedly connected with the limiting portion (241), and the other end is raised away from the direction of the side wall of the top cover (11).
7. A magnetically latched relay for easy installation according to claim 6, characterized in that The lock catch (24) comprises an abutting block (243), the abutting block (243) is opposite to the fixing plate (23) in parallel, one end of the abutting block (243) is fixedly connected with the limiting portion (241), and the other end extends away from the limiting portion (241).
8. A magnetically latched relay for easy installation according to claim 1, characterized in that The end of the positioning column (21) away from the top cover (11) is transitionally smooth.