SLI-40A relay
By employing riveting and highly conductive materials in the relay design, the problem of easily damaged PCB terminals is solved, achieving stable current conduction and convenient maintenance, thus improving the circuit's response accuracy and maintenance efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-10
AI Technical Summary
In existing relays, the PCB terminals are prone to deformation and bending, making them inconvenient to repair and replace after damage, which affects the stability of the circuit and increases maintenance costs.
The moving spring is fixed to the outer wall of the yoke by riveting, and the COM foot is also riveted to the outer wall of the yoke. Combined with the fixing nut and high conductivity alloy material, the electrical connection performance is optimized, the contact resistance is reduced, the response accuracy is improved and the maintenance is convenient.
This design achieves a stable connection between the moving spring and the yoke, reduces contact resistance, improves current conduction efficiency and response accuracy, simplifies the maintenance process, and reduces maintenance difficulty and cost.
Smart Images
Figure CN224110215U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of relays, in particular to an SLI-40A relay. BACKGROUND
[0002] In the long river of the development of electrical systems, relays have played an indispensable role since their inception. In the early days, as power applications gradually became popular, people urgently needed a device that could achieve signal amplification, circuit switching, and remote control. Relays were born to meet the needs. The initial electromagnetic relay, by means of electromagnetic induction principle, uses a smaller control current to manipulate a larger working current, providing basic support for the initial automation of power systems and signal transmission in the field of communication, and becoming the key hub connecting the control circuit and the main circuit in electrical equipment.
[0003] In the existing relay, the PCB terminal arranged on the yoke iron is used to connect the current, and then the yoke iron guides the current to the armature through the moving spring piece, and the armature completes the conduction and cut-off of the relay circuit.
[0004] According to the related technology in the above, the inventors believe that the PCB terminal is prone to deformation and bending, and the PCB terminal is fixedly arranged on the yoke iron, so that it is inconvenient to repair and replace after damage. CONTENT OF THE UTILITY MODEL
[0005] The purpose of the present application is to provide an SLI-40A relay to improve the problem that it is inconvenient to repair and replace after the PCB terminal is damaged.
[0006] The application provides a kind of for SLI-40A relay, adopt the following technical solutions:
[0007] The SLI-40A relay includes a housing and a relay arranged in the housing, the relay includes a yoke iron, the yoke iron is rotatably connected with an armature, the armature is provided with a moving spring piece, one end of the moving spring piece away from the armature is fixed with the outer side wall of the yoke iron, the outer side wall of the yoke iron is provided with a COM foot, the COM foot is provided with a PCB terminal for connecting conduction; the outer side wall of the yoke iron is provided with a plurality of riveting points, one end of the moving spring piece away from the armature is riveted and fixed with the outer side wall of the yoke iron, and the COM foot is riveted with the outer side wall of the yoke iron.
[0008] By adopting the above technical scheme, the moving spring piece and the outer side wall of the yoke iron are riveted and fixed, the riveting has a certain mechanical strength, the moving spring piece and the yoke iron are connected stably, and the stable conduction of the relay circuit is guaranteed; the COM foot and the outer side wall of the yoke iron are also riveted, on the one hand, the connection reliability is also enhanced, and on the other hand, in the case of damage such as PCB bending, the riveting structure is relatively simple, and the disassembly and reinstallation are relatively convenient during maintenance and replacement, thereby reducing the maintenance difficulty and cost.
[0009] Optionally, the COM pin is overlapped with one end of the moving reed and the riveting point is the same.
[0010] By adopting the above technical solutions, the number of connection nodes is reduced, the contact resistance is reduced, the energy loss in the current transmission process is reduced, the synergy between the COM pin and the moving reed is improved, under the action of electromagnetic force, the opening and closing of the moving reed can drive the COM pin to respond synchronously, the additional resistance caused by relative displacement is reduced, the current conduction efficiency and the response accuracy of the relay are improved.
[0011] Optionally, the COM pin covers one end of the moving reed.
[0012] By adopting the above technical solutions, since the moving reed is the original component of the relay, by setting the COM pin to cover one end of the moving reed, the installation and replacement of the COM pin are facilitated, the possibility of loose connection or poor contact of the moving reed due to excessive swinging is reduced, and the moving reed is stably fixed.
[0013] Optionally, a fixing nut is arranged on the outer side wall of the shell.
[0014] By adopting the above technical solutions, the fixing nut facilitates the firm installation of the relay on the corresponding device or circuit board, enhances the stability of the relay in the use environment, reduces problems such as displacement and poor contact of the relay caused by external factors such as vibration and collision, and ensures reliable circuit connection.
[0015] Optionally, the end of the COM pin away from the PCB terminal is bent to be fixed to the fixing nut and is provided with a QC terminal.
[0016] By adopting the above technical solutions, the QC terminal is convenient for quick connection with the external circuit, improves the convenience of installation and maintenance, and on the other hand, in combination with the fixing nut, the internal circuit and the external connection layout are more reasonable, the line is less cluttered, and the overall electrical performance is optimized.
[0017] Optionally, the COM pin is provided with a contact point abutting against the yoke on the side close to the yoke.
[0018] By adopting the above technical solutions, the COM pin is supported by the contact point abutting against the yoke, which helps to keep the structure stable, and at the same time, helps to achieve good electrical contact between the COM pin and the yoke, improving the working reliability of the relay.
[0019] Optionally, the height of the contact point is the same as the thickness of the moving reed.
[0020] By adopting the above technical solutions, the PCB terminal plane is parallel to the contact surface of the yoke and the reed, which helps to stably install the PCB terminal.
[0021] Optionally, the material of the PCB terminal is a high-conductivity alloy.
[0022] By adopting the above technical solution, the high-conductivity alloy has a reduced resistance compared to ordinary materials, reduces line loss, and helps current conduction and improves the power of the conductible current.
[0023] In summary, the present application includes at least the following SLI-40A relay technical effects:
[0024] 1. The moving spring plate and the yoke outer wall are fixed by riveting, which has a certain mechanical strength, making the moving spring plate and the yoke connection stable and ensuring the stable conduction of the relay circuit; the COM pin and the yoke outer wall are also riveted, which on the one hand enhances the connection reliability, and on the other hand, in the case of PCB bending damage, the riveted structure is relatively simple, and the disassembly and reinstallation during maintenance and replacement is more convenient, reducing the maintenance difficulty and cost;
[0025] 2. It helps to reduce the number of connection nodes, reduce the contact resistance, and reduce the energy loss in the current transmission process; it helps to improve the synergy between the COM pin and the moving spring plate, and under the action of electromagnetic force, the opening and closing of the moving spring plate can drive the COM pin to respond synchronously, reducing the additional resistance caused by relative displacement to hinder the current, improving the current conduction efficiency and the response accuracy of the relay.
[0026] 3. Since the moving spring plate is the original component of the relay, covering one end of the moving spring plate by setting the COM pin facilitates the installation and replacement of the COM pin, and helps to reduce the possibility of loose connection or poor contact of the moving spring plate due to excessive swinging, and helps to stabilize and fix the moving spring plate. BRIEF DESCRIPTION OF DRAWINGS
[0027] Figure 1 is a schematic diagram for embodying the shell structure in the embodiment;
[0028] Figure 2 is a schematic diagram of the overall structure of the SLI-40A relay;
[0029] Figure 3 is a schematic diagram for embodying the COM pin structure in the embodiment.
[0030] In the figure, 1 is a shell; 11 is a fixing nut; 2 is a relay; 21 is a yoke; 211 is a rivet point; 22 is an armature; 23 is a moving spring plate; 3 is a COM pin; 31 is a PCB terminal; 32 is a QC terminal; and 33 is a contact point. DETAILED DESCRIPTION
[0031] SLI-40A relay, refer to Figure 1, including a shell 1 and a relay 2 arranged in the shell 1. The shell 1 is integrally injection molded by using engineering plastic with high strength and good insulation, thereby providing a stable working environment for the relay 2. A square groove is arranged on the outer wall of the shell 1, and a fixing nut 11 is arranged in the square groove. The fixing nut 11 is usually made of stainless steel or copper.
[0032] With reference to Figure 2 , the relay 2 includes a yoke 21, which is an important component of an electromagnetic system. The yoke 21 is rotatably connected to an armature 22. The armature 22 is also made of a material with good magnetic conductivity. When the electromagnetic coil of the relay 2 is electrified to generate a magnetic field, the armature 22 will rotate under the action of the magnetic force, thereby realizing the attraction action of the relay 2.
[0033] With reference to Figure 2 , the armature 22 is provided with a moving spring piece 23 through riveting. The moving spring piece 23 is usually made of phosphor bronze or beryllium bronze, which has good elasticity and conductivity. When the armature 22 rotates, the moving spring piece 23 will move together, thereby realizing the on-off control of the circuit. The end of the moving spring piece 23 away from the armature 22 is fixed to the outer wall of the yoke 21. Specifically, the outer wall of the yoke 21 is provided with a plurality of riveting points 211. In this embodiment, two riveting points 211 are preferred. The end of the moving spring piece 23 away from the armature 22 is riveted and fixed to the outer wall of the yoke 21 through the two riveting points 211.
[0034] With reference to Figure 2 , Figure 3 , the outer wall of the yoke 21 is provided with a COM pin 3. The COM pin 3 is integrally provided with a PCB terminal 31 with good conductivity. The material of the PCB terminal 31 is a high-conductivity alloy, such as copper and copper alloy. The COM pin 3 is connected to the outer wall of the yoke 21 through riveting. The COM pin 3 overlaps one end of the moving spring piece 23 and has the same riveting points 211, that is, the COM pin 3 and the moving spring piece 23 are riveted and fixed to the yoke 21 at the same riveting point 211. The COM pin 3 is arranged to cover one end of the moving spring piece 23, thereby further optimizing the electrical connection performance and reducing the contact resistance.
[0035] With reference to Figure 2 , Figure 3 , the end of the COM pin 3 away from the PCB terminal 31 is integrally provided with a QC terminal 32 through bending and fixing to the fixing nut 11. The fixing nut 11 is limited in the square groove of the shell 1 through the bending of the QC terminal 32. The side of the COM pin 3 close to the yoke 21 is integrally provided with a contact point 33, which abuts against the yoke 21 to maintain the stability of the COM pin 3. The height of the contact point 33 is the same as the thickness of the moving spring piece 23, so that the COM pin 3 is parallel to one side of the yoke 21.
[0036] The implementation principle of the embodiment of the present application is as follows:
[0037] The riveting installation COM pin 3 is externally powered, the current flows into the PCB terminal 31, and the current is transmitted to the COM pin 3 with low resistance, the contact point 33 is in close contact with the yoke 21 to maintain the COM pin 3 stable, the energization makes the electromagnetic coil of the relay 2 produce a magnetic field, drives the armature 22 to rotate and attract, realizes the external circuit on-off control; through the riveting installation COM pin 3, the PCB terminal 31 on the COM pin 3 is connected to realize the relay 2 operation, the COM pin 3 is convenient to replace so as to facilitate the maintenance and replacement of the PCB terminal 31. The embodiments of the specific embodiment are the preferred embodiments of the application, not limited by the protection scope of the application, wherein the same parts are indicated by the same reference numerals. Therefore: any equivalent changes made according to the structure, shape and principle of the application should be covered within the protection scope of the application.
Claims
1. SLI-40A relay characterized in that: The utility model relates to a relay, including shell (1) and the relay (2) being arranged in shell (1), the relay (2) includes yoke (21), the yoke (21) rotationally connected with armature (22), the armature (22) is provided with movable spring blade (23), the movable spring blade (23) one end away from armature (22) with yoke (21) outside wall is fixed, yoke (21) outside wall is provided with COM foot (3), COM foot (3) is provided with the on conduction PCB terminal (31), yoke (21) outside wall is provided with a plurality of riveting point (211), the movable spring blade (23) one end away from armature (22) with yoke (21) outside wall riveting fixed, COM foot (3) and yoke (21) outside wall riveting.
2. The SLI-40A relay of claim 1, wherein: The COM foot (3) is overlapped with one end of the movable spring blade (23) and the riveting point (211) is same.
3. The SLI-40A relay of claim 2, wherein: The COM foot (3) covers one end of the movable spring blade (23) and is provided.
4. The SLI-40A relay of claim 1, wherein: The shell (1) is provided with a fixing nut (11) on the outer wall.
5. The SLI-40A relay of claim 4, wherein: The COM foot (3) is provided with a QC terminal (32) on the end away from the PCB terminal (31) and is fixed to the fixing nut (11).
6. The SLI-40A relay of claim 1, wherein: The COM foot (3) is provided with a contact point (33) on the side close to the yoke (21) and is in contact with the yoke (21).
7. The SLI-40A relay of claim 6, wherein: The contact point (33) has the same height as the thickness of the movable spring blade (23).
8. The SLI-40A relay of claim 1, wherein: The PCB terminal (31) is made of high-conductivity alloy.