Pluggable relay with good anti-seismic effect

Abstract

The utility model discloses a plug-in relay with a good anti-seismic effect, which relates to the technical field of plug-in relays and comprises a shell and a bottom plate, the shell is sleeved on the outer wall of the bottom plate, and a relay mechanism is inserted at the top end of the bottom plate and is positioned in the shell. The relay mechanism is composed of a coil assembly, a pair of terminal pins, a static spring assembly and a movable spring assembly. The plug-in relay is simple in structure, adopts conventional assembly structures such as riveting and direct insertion installation, is beneficial to automatic assembly, is provided with a hanging table on the armature, adopts a limiting design on the shell, improves the shock resistance, adopts a positive and negative error-proofing design on the shell, can avoid assembly errors, and improves the assembly qualification rate of products.

Description

Technical Field

[0001] This utility model relates to the field of pluggable relay technology, specifically a pluggable relay with good shock resistance. Background Technology

[0002] Plug-in relays are commonly used electrical control components, widely applied in various industrial control systems. They are often found in automotive fuse boxes for auxiliary use. Their main function is to cut off the power supply line by blowing the fuse or disconnecting the relay contacts when abnormal conditions occur in the circuit, such as short circuits or overcurrents, thus protecting electrical equipment from damage.

[0003] Currently, most pluggable relays in automotive fuse boxes rarely have corresponding shock absorption mechanisms. However, cars are subjected to various vibrations during driving, which may damage the pluggable relays in the fuse box, affecting their normal operation and lifespan. Therefore, this utility model proposes a pluggable relay with good shock resistance. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a pluggable relay with good shock resistance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pluggable relay with good shock resistance, comprising a housing and a base plate, wherein the housing is sleeved on the outer wall of the base plate, and a relay mechanism is inserted into the top of the base plate, and the relay mechanism is located inside the housing, wherein the relay mechanism consists of a coil assembly, a pair of lead pins, a stationary spring assembly, and a moving spring assembly.

[0006] The coil assembly described above includes a coil frame, a yoke, a bent and recessed bobbin, an iron core, and a wound coil. The coil frame is sleeved on the outer wall of a pair of lead pins. The yoke is inserted into the top of the base plate and riveted to the coil frame. The bent and recessed bobbin is embedded and connected to the outer wall of the yoke. One end of the iron core is riveted to the inner wall of the coil frame. The wound coil is wound around the outer wall of the coil frame.

[0007] As described above, each pair of lead pins has two pairs of barbs fixedly connected to its outer wall, and the outer wall of the barbs is in contact with the inner wall of the coil frame.

[0008] The aforementioned stationary spring assembly includes a normally closed stationary spring, a normally open stationary spring, and a pair of stationary contacts. The pair of stationary contacts are riveted to the normally closed stationary spring and the normally open stationary spring, respectively. Both the normally closed stationary spring and the normally open stationary spring are inserted into the top of the base plate.

[0009] As described above, the moving spring assembly includes a moving spring, a moving contact, an armature, and a pair of retaining plates. The moving contact is riveted to the moving spring and is located between a pair of stationary contacts. One end of the moving spring is fixedly connected to one end of the armature, and the top end of the moving spring is riveted to the top end of the yoke. Both retaining plates are fixedly connected to the outer wall of the armature and are in contact with the yoke.

[0010] As described above, the inner top of the outer shell is fixedly connected with two pairs of positive and negative anti-misalignment ribs and a pair of limiting armature anti-vibration ribs. The pair of positive and negative anti-misalignment ribs on one side is longer than the pair of positive and negative anti-misalignment ribs on the other side, and the bottom ends of the two pairs of positive and negative anti-misalignment ribs are in contact with the top of the coil frame, and the bottom ends of the pair of limiting armature anti-vibration ribs are in contact with the top of the armature.

[0011] Compared with existing technologies, this pluggable relay with good shock resistance has the following advantages:

[0012] The pluggable relay in this utility model has a simple structure and adopts conventional assembly structures such as riveting and direct insertion, which is conducive to automated assembly. The armature has a mounting platform, and the outer shell has a limit design to improve shock resistance. The outer shell has a positive and negative error prevention design to avoid assembly errors and improve the product assembly qualification rate.

[0013] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0015] Figure 2 This is a partial disassembled structural diagram of the overall structure of this utility model;

[0016] Figure 3 This is a partial disassembled structural diagram of the relay mechanism in this utility model;

[0017] Figure 4 This is a partial disassembled structural diagram of the coil assembly in this utility model;

[0018] Figure 5 This is a schematic diagram of the partially disassembled structure of the outer shell of this utility model from a bottom-view angle.

[0019] In the diagram: 1. Outer shell; 2. Base plate; 3. Relay mechanism; 4. Coil assembly; 401. Coil frame; 402. Yoke; 403. Bending and positioning bobbin; 404. Iron core; 405. Winding coil; 5. Lead pin; 501. Barb; 6. Stationary spring assembly; 601. Normally closed stationary spring; 602. Normally open stationary spring; 603. Stationary contact; 7. Moving spring assembly; 701. Moving spring leaf; 702. Moving contact; 703. Armature; 704. Clamping platform; 8. Positive and negative anti-misalignment ribs; 9. Limiting armature anti-vibration ribs. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, this utility model provides a technical solution: a pluggable relay with good shock resistance, including a housing 1 and a base plate 2. The housing 1 is sleeved on the outer wall of the base plate 2. A relay mechanism 3 is inserted into the top of the base plate 2, and the relay mechanism 3 is located inside the housing 1. The relay mechanism 3 is composed of a coil assembly 4, a pair of lead pins 5, a stationary spring assembly 6, and a moving spring assembly 7.

[0022] Based on the overall structure of the device, the relay mechanism is fitted into the base plate 2 and the outer shell 1, and then sealed with glue to complete the finished relay. The lead-out pins conform to the ISO 7588-3 general standard pins for automotive relays. The relay structure is optimized and simplified, which is conducive to fully automated assembly production and reduces production and assembly costs. It adopts a low coil power consumption of 0.95W to reduce energy consumption. The coil is also optimized with a long shaft design, which has high magnetic utilization and fits the dynamic usage scenarios of automobiles. The moving parts are surrounded by a shock-resistant structure design, which is safe and reliable. The product has a positive and negative error prevention design to prevent defects and improve the product yield.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the coil assembly 4 includes a coil frame 401, a yoke 402, a bent and recessed bobbin 403, an iron core 404, and a wound coil 405. The coil frame 401 is sleeved on the outer wall of a pair of lead feet 5. The yoke 402 is inserted into the top of the base plate 2 and the coil frame 401 is riveted to the yoke 402. The bent and recessed bobbin 403 is embedded and connected to the outer wall of the yoke 402. One end of the iron core 404 is riveted to the inner wall of the coil frame 401. The wound coil 405 is wound on the outer wall of the coil frame 401. Two pairs of barbs 501 are fixedly connected to the outer wall of each pair of lead feet 5, and the outer wall of the barbs 501 is in contact with the inner wall of the coil frame 401.

[0024] By inserting a pair of lead pins 5 into the coil holder 401 using a top-to-bottom straight-insertion design, the coil holder 401 is slotted, and barbs 501 are added to both ends of the lead pins 5 to form an interference fit. After assembly, the barbs 501 clamp the coil holder 401 to provide assembly strength. This design structure is simple to install, and the interference fit can be varied according to the size of the barbs 501 to match different installation firmness, in order to prepare for subsequent winding. The enameled wire is wound onto the coil holder 401 using a winding process, and the winding coil 405 is designed... The design extends the length of the winding spool to fully utilize the magnetic circuit. With the same copper wire volume, the longer the winding length, the greater the electromagnetic force generated, and the greater the relay's attraction force. The yoke 402 and the iron core 404 are installed on the coil frame 401 and fixed by tail riveting to form the relay's magnetic circuit system. The yoke 402 adopts a long yoke form and is led out as an integrated unit. In addition, in order to extend the winding length of the spool, the yoke 402 is designed to bend and avoid the spool 403 to make full use of the space in the product's length direction.

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, the stationary spring assembly 6 includes a normally closed stationary spring 601, a normally open stationary spring 602, and a pair of stationary contacts 603. The pair of stationary contacts 603 are riveted to the normally closed stationary spring 601 and the normally open stationary spring 602, respectively. The normally closed stationary spring 601 and the normally open stationary spring 602 are both inserted into the top of the base plate 2.

[0026] By driving the normally open stationary spring 602 and normally closed stationary spring 601 to be inserted into the corresponding slots of the coil frame 401 respectively, a direct insertion structure is designed. The normally open stationary spring 602 and normally closed stationary spring 601 are positioned by the coil frame 401. With the same positioning reference, the stationary springs are assembled to form a contact system. After assembly, the position and size are more accurate and the changes are smaller, which is conducive to the stability of relay parameters and improves the yield rate.

[0027] like Figure 1 , Figure 2 and Figure 3As shown, the moving spring assembly 7 includes a moving spring 701, a moving contact 702, an armature 703, and a pair of retaining plates 704. The moving contact 702 is riveted to the moving spring 701 and is located between a pair of stationary contacts 603. One end of the moving spring 701 is fixedly connected to one end of the armature 703, and the top end of the moving spring 701 is riveted to the top end of the yoke 402. Both retaining plates 704 are fixedly connected to the outer wall of the armature 703 and are in contact with the yoke 402.

[0028] By driving the moving contact 702 to be riveted to the moving spring 701, and then to the armature 703, the moving spring assembly 7 is formed. The moving spring assembly 7 is riveted to the yoke 402 in the magnetic circuit system to complete the assembly of the moving spring assembly 7. A pair of locking plates 704 on the armature 703 lock the yoke 402. When the relay is subjected to external impact or drop, the limiting of the locking plates 704 can effectively prevent the moving spring assembly 7 from displacing in the direction of the pin, thus achieving the shockproof function.

[0029] like Figure 5 As shown, two pairs of positive and negative anti-misalignment ribs 8 and a pair of limiting armature anti-vibration ribs 9 are fixedly connected to the inner top of the outer shell 1. The pair of positive and negative anti-misalignment ribs 8 on one side is longer than the pair of positive and negative anti-misalignment ribs 8 on the other side, and the bottom ends of the two pairs of positive and negative anti-misalignment ribs 8 are in contact with the top of the coil frame 401, and the bottom ends of the pair of limiting armature anti-vibration ribs 9 are in contact with the top of the armature 703.

[0030] The housing 1 and the relay mechanism 3 are designed with two pairs of positive and negative anti-misalignment ribs 8 of different heights, which ensure that the relay mechanism is inserted in a fixed direction and cannot be assembled in the opposite direction. This anti-misalignment design can eliminate the problem of reverse installation and avoid problems for customers. The housing 1 is also equipped with a limit armature anti-vibration rib 9 to limit the relay moving spring assembly 7, reduce the displacement amplitude of the moving spring assembly 7 under vibration conditions, reduce the deformation of the moving spring, and improve the product's vibration resistance.

[0031] Working principle: A pair of lead pins 5 are inserted into the coil frame 401. The yoke 402 and the iron core 404 are installed on the coil frame 401 and fixed by tail riveting. Then, the normally open stationary spring 602 and the normally closed stationary spring 601 are respectively inserted into the corresponding slots of the coil frame 401 for positioning. At the same time, the moving contact 702 is riveted to the moving spring 701, and then riveted to the armature 703 and the yoke 402 to complete the assembly. Next, with the assistance of the positive and negative anti-misalignment ribs 8, the relay mechanism 3 is inserted along the fixed direction, so that the relay mechanism 3 is inserted into the housing 1. It is then sealed and fixed with the base plate 2, thus completing the finished relay.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pluggable relay with good shock resistance, comprising a housing (1) and a base plate (2), characterized in that: The outer shell (1) is fitted onto the outer wall of the base plate (2). A relay mechanism (3) is inserted into the top of the base plate (2), and the relay mechanism (3) is located inside the outer shell (1). The relay mechanism (3) consists of a coil assembly (4), a pair of lead pins (5), a stationary spring assembly (6), and a moving spring assembly (7).

2. The pluggable relay with good shock resistance according to claim 1, characterized in that: The coil assembly (4) includes a coil frame (401), a yoke (402), a bent and recessed bobbin (403), an iron core (404), and a wound coil (405). The coil frame (401) is sleeved on the outer wall of a pair of lead pins (5). The yoke (402) is inserted into the top of the base plate (2), and the coil frame (401) is riveted to the yoke (402). The bent and recessed bobbin (403) is embedded and connected to the outer wall of the yoke (402). One end of the iron core (404) is riveted to the inner wall of the coil frame (401). The wound coil (405) is wound around the outer wall of the coil frame (401).

3. A pluggable relay with good shock resistance according to claim 2, characterized in that: Two pairs of barbs (501) are fixedly connected to the outer wall of each pair of lead pins (5), and the outer wall of the barbs (501) is in contact with the inner wall of the coil frame (401).

4. A pluggable relay with good shock resistance according to claim 1, characterized in that: The stationary spring assembly (6) includes a normally closed stationary spring (601), a normally open stationary spring (602), and a pair of stationary contacts (603). The pair of stationary contacts (603) are riveted to the normally closed stationary spring (601) and the normally open stationary spring (602), respectively. The normally closed stationary spring (601) and the normally open stationary spring (602) are both inserted into the top of the base plate (2).

5. A pluggable relay with good shock resistance according to claim 4, characterized in that: The moving spring assembly (7) includes a moving spring (701), a moving contact (702), an armature (703), and a pair of locking platforms (704). The moving contact (702) is riveted to the moving spring (701) and is located between a pair of stationary contacts (603). One end of the moving spring (701) is fixedly connected to one end of the armature (703). The top end of the moving spring (701) is riveted to the top end of the yoke (402). Both of the locking platforms (704) are fixedly connected to the outer wall of the armature (703) and are in contact with the yoke (402).

6. A pluggable relay with good shock resistance according to claim 5, characterized in that: The inner top of the outer shell (1) is fixedly connected to two pairs of positive and negative anti-misalignment ribs (8) and a pair of limiting armature anti-vibration ribs (9). The pair of positive and negative anti-misalignment ribs (8) on one side is longer than the pair of positive and negative anti-misalignment ribs (8) on the other side. The bottom ends of the two pairs of positive and negative anti-misalignment ribs (8) are in contact with the top of the coil frame (401), and the bottom ends of the pair of limiting armature anti-vibration ribs (9) are in contact with the top of the armature (703).

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