A heavy-duty electromagnetic relay

Abstract

The application discloses a large-load-resistant electromagnetic relay, which comprises a magnetic circuit driving assembly arranged on a base, a movable contact structure, a static contact structure and a transmission assembly, the transmission assembly comprises an armature component swingably arranged on the magnetic circuit driving assembly and a sliding block structure reciprocally arranged on the base, the movable contact structure comprises a spring piece assembly in linkage cooperation with the sliding block structure, and the armature component is connected with the sliding block structure through a driving part which is obliquely and extendingly arranged. The electromagnetic relay adopting the technical scheme is based on the existing structure, optimizes the product structure layout, replaces the original push rod mode of rotation or erection installation with the sliding block structure, is more compact in structure, the installation structure of the sliding block structure is simple, the sliding block structure is more convenient to assemble on the base, the self size is smaller, cooperation transmission is reliable, assembly efficiency is improved, the product size is smaller, and production manufacturing cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of low-voltage electrical technology, and more specifically to an electromagnetic relay capable of withstanding high loads. Background Technology

[0002] An electromagnetic relay is an electronic control device that has a control system (also known as an input circuit) and a controlled system (also known as an output circuit). It is commonly used in automatic control circuits. Essentially, it is an "automatic switch" that uses a smaller current and lower voltage to control a larger current and higher voltage. Therefore, it plays a role in automatic adjustment, safety protection, and circuit switching in circuits.

[0003] Existing electromagnetic relays typically include a base, a magnetic circuit section, a contact section, and a push rod disposed between the magnetic circuit section and the contact section. The contact section consists of a moving spring and a stationary spring inserted into the base. The push rod is driven by an armature in the magnetic circuit section. The push rod is usually installed in one of two ways. One of these methods is disclosed in Chinese patent document CN212062311U, which discloses a snap-fit ​​electromagnetic relay, including a base and an electromagnetic assembly, a push plate, and a contact section disposed on the base. The electromagnetic assembly includes an iron core coil, an armature, and a frame for mounting the armature. The lower end of the push plate is rotatably mounted on the base. One side of the push plate has a push plate that interacts with the armature, and the other side has a push rod that interacts with the contact section. The push rod has a double-group parallel structure. The lower end of this push plate is set as a circular rotating shaft. This push plate has a complex structure, a large volume, and occupies a lot of installation space, which is not conducive to the miniaturization of the product. For example, Chinese patent document CN 207719106U discloses a power relay, including a housing, a base, an armature, a yoke, a push rod, a normally closed stationary spring, a normally open stationary spring, and a moving spring. The armature and the yoke are connected together by a spring. The vertical section of the armature is connected to the armature connection end of the push rod through a connection hole, and the moving spring connection end of the push rod is connected to the connection hole of the moving spring. An insulating screen is provided in the middle of the push rod, that is, the push rod is horizontally mounted between the armature and the moving spring. This push rod and the armature are prone to positional collision interference, which makes the push rod prone to falling during installation. This push rod installation structure is complex, increases the installation difficulty, and has low installation efficiency, which is not conducive to the automated production of the product.

[0004] In summary, existing electromagnetic relays typically employ the two aforementioned push-rod mounting methods. Due to structural and space limitations, significant changes are difficult. However, practical applications still present the following problems: the push-rod structure is complex, resulting in a large size and cumbersome installation on the base. This leads to complex installation structures, low assembly efficiency, difficulty in controlling production costs, and increased challenges in automated production. Therefore, while meeting the basic performance requirements of relay products, the current need for engineers is to develop an electromagnetic relay product with a simple installation structure, small footprint, high operational reliability, and ease of automated production and assembly. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the problems of complex push rod structure, large size, and cumbersome installation process on the base in the prior art, which are not conducive to controlling production costs. Therefore, the present invention provides an electromagnetic relay with optimized product structure layout, simple installation structure, improved assembly efficiency, and the ability to make the product smaller and reduce production costs.

[0006] To address the aforementioned problems, this invention provides an electromagnetic relay capable of withstanding high loads, comprising a base, a magnetic circuit drive assembly, a moving contact structure, a stationary contact structure disposed on the base, and a transmission assembly movably disposed between the magnetic circuit drive assembly and the moving contact structure. The transmission assembly includes an armature component oscillatingly disposed on the magnetic circuit drive assembly, and a slider structure reciprocatingly disposed on the base. The moving contact structure includes a spring assembly that forms a linkage with the slider structure, the spring assembly being disposed opposite to the stationary contact structure. The armature component has a drive portion extending at an incline towards one side of the slider structure by a predetermined length. The slider structure and the drive portion are connected by a limiting structure. When the armature component is attracted and oscillated by the magnetic circuit drive assembly, it pushes the slider structure to move, causing the slider structure to bring the spring assembly into contact with the stationary contact structure.

[0007] In the aforementioned electromagnetic relay, a mounting groove is provided on the base extending along its length direction, and the slider structure is movably accommodated in the mounting groove. A guide structure is provided between the mounting groove and the slider structure to guide the slider structure to move along the length direction of the base.

[0008] In the aforementioned electromagnetic relay, the guiding structure includes a guiding groove extending in the same direction as the mounting groove and slidably connected to the guiding groove at the bottom of the slider structure. The guiding groove extends out of one end of the mounting groove and extends to the stationary contact structure.

[0009] In the aforementioned electromagnetic relay, the limiting structure includes a limiting slot disposed on the slider structure, and one end of the driving part is inserted into the limiting slot.

[0010] In the aforementioned electromagnetic relay, the magnetic circuit drive assembly includes a drive coil and a yoke. The armature component is L-shaped and oscillatingly connected to the upper end of the yoke, and a spring sheet structure is provided between it and the yoke. The drive part is a sloping plate structure formed by narrowing the width of one end of the armature component and extending downward.

[0011] In the aforementioned electromagnetic relay, the base includes two mounting bosses formed on both sides of the mounting groove, the movable contact structure includes a conductive bracket mounted on the two mounting bosses, and the spring assembly includes two movable springs symmetrically arranged on the conductive bracket. One end of each of the two movable springs is fixed to the conductive bracket, and the other end extends to the bottom of the conductive bracket and is linked with the slider structure through a positioning structure.

[0012] In the aforementioned electromagnetic relay, the positioning structure includes two positioning hooks disposed on both sides of the front end of the slider structure, and two hook slots disposed on the two positioning hooks, with the other ends of the two moving springs respectively positioned and inserted into the two hook slots.

[0013] In the aforementioned electromagnetic relay, the conductive support includes two vertical plates that are respectively connected to the two moving springs, a central slot formed between the two vertical plates and extending to the top of the conductive support, and a connecting portion connected to the bottom of the two vertical plates. Two mounting slots are provided on the two mounting protrusions. The bottom edge of the connecting portion is bent to form two mounting feet that are respectively inserted into the two mounting slots. A U-shaped current path is formed between the two moving springs, passing through the two vertical plates and the connecting portion.

[0014] In the aforementioned electromagnetic relay, the stationary contact structure includes two stationary conductive sheets that are spaced apart from each other on the base, corresponding to two moving springs. The two stationary conductive sheets and the two moving springs are respectively provided with two pairs of moving contacts and stationary contacts. The bottom of the two stationary conductive sheets is bent to form a guide end that extends through to the bottom of the base.

[0015] In the aforementioned electromagnetic relay, the base is provided with a mounting partition that blocks the other end of the mounting groove, and the magnetic circuit drive assembly and the slider structure are respectively provided on both sides of the mounting partition; it also includes a cover sleeved on the base, and an insulating baffle is provided inside the cover to abut between two mounting bosses to separate the armature component from the conductive support.

[0016] The technical solution of the present invention has the following advantages compared with the prior art:

[0017] 1. The high-load electromagnetic relay provided by this invention features a reciprocating slider structure on a base. During assembly of the armature component and moving contact structure, the armature component is connected to the slider structure via an inclined, extended drive section, and the moving contact structure is linked to the slider structure via a spring assembly. This reciprocating slider structure transmits motion and force between the armature component and the spring assembly. When the magnetic circuit drive assembly is energized, it generates electromagnetic force, attracting the armature component to swing. The slider structure, pushed by the armature component, drives the spring assembly to contact the stationary contact structure. When the magnetic circuit drive assembly is de-energized, the slider component resets under the elastic force of the spring assembly. This relay, based on existing structures, optimizes the product layout by using a slider structure instead of the original rotating or mounted push rod method. The structure is more compact and easier to automate. This slider structure has a simple installation structure, allowing for quick assembly on the base. It is also smaller in size, with reliable transmission, improving assembly efficiency and enabling smaller product sizes and reduced manufacturing costs.

[0018] 2. In the high-load electromagnetic relay provided by the present invention, an installation groove is provided on the base along its length direction. The slider structure is reciprocally mounted in the installation groove through a guide structure. This structural arrangement, through the design of the installation groove and the guide structure, plays a role in installation guidance and motion guidance for the slider structure on the base, ensuring that the slider structure reciprocates along the length direction of the base in the installation groove, preventing positional displacement of the slider structure during reciprocating movement, and enabling reliable transmission movement between the coil component and the reed assembly, resulting in good installation stability.

[0019] 3. In the high-load electromagnetic relay provided by the present invention, a limit slot is provided on the slider structure so that one end of the drive part is inserted into the limit slot, thereby realizing the transmission connection between the armature component and the slider structure. Since the drive part is a slanted plate structure formed by reducing the width of one end of the armature component and extending downward, this design can meet the transmission distance requirements between the armature component and the slider structure, and the installation and connection are convenient and the transmission is reliable.

[0020] 4. In the high-load electromagnetic relay provided by this invention, two positioning hooks are set on both sides of the front end of the slider structure, and hook grooves are set on the two positioning hooks respectively. As long as the other end of the two moving springs is respectively positioned and inserted into the two hook grooves, the positioning cooperation formed between the two positioning hooks and the two moving springs prevents the other end of the moving springs from detaching from the positioning hooks. The installation stability is good. This positioning structure design realizes the linkage cooperation between the slider structure and the two moving springs, so that the two moving springs are synchronously elastically offset towards the side closer to the two stationary conductive plates under the drive of the slider structure. When the moving springs are disconnected from the stationary conductive plates, the slider structure can be reset and moved under the elastic force of the two moving springs. The assembly between this slider structure and the two moving springs is also relatively simple and convenient, and it can be applied to automated assembly production, improving installation efficiency.

[0021] 5. In the high-load electromagnetic relay provided by this invention, when the two moving springs contact the two stationary conductive plates and are energized, the current is input from one of the stationary conductive plates, then transmitted between the two moving springs and the conductive support, and finally output from the other stationary conductive plate. Since the conductive support is composed of two vertical plates and a connecting part, a U-shaped current path is formed between the two moving springs, passing through the two vertical plates and the connecting part. This increases the cross-sectional area of ​​the current passing through the moving springs and the conductive support, allowing for a larger current capacity and reducing contact temperature rise. This enables the relay product to interrupt high-voltage, high-current loads, improving the product's performance.

[0022] 6. In the high-load electromagnetic relay provided by the present invention, an insulating baffle is provided on the housing and inserted between two mounting bosses. The insulating baffle separates the armature component from the conductive support, thereby increasing the electrical clearance between the armature component and the conductive support, preventing arcing and creepage, and improving the overvoltage performance of the product. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below.

[0024] Figure 1 A three-dimensional structural schematic diagram of the high-load-resistant electromagnetic relay provided by the present invention;

[0025] Figure 2 This is a cross-sectional structural diagram of the high-load electromagnetic relay of the present invention;

[0026] Figure 3 for Figure 1 The diagram shows the structure of the electromagnetic relay behind the concealed base.

[0027] Figure 4This is a schematic diagram of the connection structure between the armature component and the push block structure of the present invention;

[0028] Figure 5 This is a schematic diagram of the moving contact structure of the present invention;

[0029] Figure 6 This is a schematic diagram of the base structure of the present invention;

[0030] Explanation of reference numerals in the attached drawings: 1. Base; 11. Mounting groove; 12. Guide groove; 13. Mounting boss; 14. Mounting partition; 2. Static contact structure; 21. Static conductive sheet; 22. Guide foot end; 3. Moving contact structure; 31. Spring assembly; 311. Moving spring; 32. Conductive support; 321. Vertical plate; 322. Connecting part; 323. Mounting clip; 4. Slider structure; 41. Guide protrusion; 5. Positioning hook; 51. Hook groove; 6. Limiting slot; 7. Armature component; 71. Drive part; 8. Magnetic circuit drive assembly; 81. Drive coil; 82. Yoke; 83. Elastic pressure plate; 9. Cover; 91. Insulating baffle. Detailed Implementation

[0031] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0032] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] Example 1

[0035] The following is a detailed description of this embodiment with reference to the accompanying drawings:

[0036] This embodiment provides, as follows: Figure 1-6 An electromagnetic relay capable of withstanding high loads is shown, comprising a base 1, a magnetic circuit drive assembly 8, a moving contact structure 3, a stationary contact structure 2 disposed on the base 1, and a transmission assembly movably disposed between the magnetic circuit drive assembly 8 and the moving contact structure 3. The transmission assembly comprises an armature component 7 oscillatingly disposed on the magnetic circuit drive assembly 8, and a slider structure 4 reciprocally disposed on the base 1. The moving contact structure 3 comprises a spring assembly 31 that forms a linkage with the slider structure 4. The spring assembly 31 is disposed opposite to the stationary contact structure 2. The armature component 7 has a drive portion 71 extending at an inclined length toward one side of the slider structure 4. The slider structure 4 and the drive portion 71 are connected by a limiting structure. When the armature component 7 is attracted and oscillated by the magnetic circuit drive assembly 8, it pushes the slider structure 4 to move, causing the slider structure 4 to drive the spring assembly 31 to contact the stationary contact structure 2.

[0037] In the above embodiment, by providing a reciprocating slider structure on the base 1, and then during the assembly of the armature component 7 and the moving contact structure 3, the armature component 7 is connected to the slider structure 4 via the inclined extending drive part 71, and the moving contact structure 3 is linked to the slider structure 4 via the spring assembly 31. Thus, the reciprocating slider structure 4 transmits motion and force between the armature component 7 and the spring assembly 31. When the magnetic circuit drive assembly is energized and generates electromagnetic force, it attracts the armature component 7 to swing, causing the slider structure 4 to drive the spring assembly 31 and the stationary contact structure 4 under the push of the armature component 7. When the contact structure 2 contacts and the magnetic circuit drive component is de-energized, the slider component will reset and move under the elastic force of the spring assembly 31. Based on the existing structure, the electromagnetic relay of this technical solution optimizes the product structure layout and adopts a slider structure to replace the original rotating or mounted push rod method. The structure is more compact and easier to realize automated production and assembly of the product. The installation structure of this slider structure is simple, which facilitates quick assembly on the base. Its own volume is also smaller, and the transmission is reliable, which improves the assembly efficiency and helps to make the product smaller and reduce the production and manufacturing costs.

[0038] To ensure the stability and reliability of the reciprocating movement of the slider structure 4 on the base 1, a mounting groove 11 is provided on the base 1 along its length. The slider structure 4 is movably accommodated in the mounting groove 11. A guide structure is provided between the mounting groove 11 and the slider structure 4 to guide the slider structure 4 to move along the length of the base 1. As a specific structural configuration, the guide structure includes a guide groove 12 extending in the mounting groove 11 in the same direction as the mounting groove 11, and a guide protrusion 41 located at the bottom of the slider structure 4 and slidably connected to the guide groove 12. The guide groove 12 extends out of one end of the mounting groove 11 and extends to the stationary contact structure 2. According to the above structure, the design of the mounting groove and the guide structure plays a role in guiding the installation and movement of the slider structure 4 on the base, ensuring that the slider structure 4 reciprocates along the length of the base in the mounting groove, preventing positional displacement during the reciprocating movement of the slider structure, reliably transmitting motion between the coil component and the spring assembly, and achieving good installation stability.

[0039] In this embodiment, as Figure 3-4 As shown, the magnetic circuit drive assembly 8 includes a drive coil 81 and a yoke. The armature component 7 is L-shaped and oscillatingly connected to the upper end of the yoke 82, with an elastic pressure plate 83 between them. When the drive coil 81 is energized, it generates an electromagnetic force that attracts the armature component 7, causing the armature component 7 to push the slider structure 4 towards the side closer to the stationary contact structure 2 under the action of the electromagnetic force. The drive part 71 on the armature component is connected to the slider structure 4 through a limiting structure. The limiting structure includes a limiting slot 6 on the slider structure 4. One end of the drive part 71 is inclinedly inserted into the limiting slot 6, which is located at the rear end of the slider structure, thereby realizing the transmission connection between the armature component 7 and the slider structure 4. The structure is simple and easy to install. The drive part 71 is a sloping plate structure formed by narrowing the width of one end of the armature component 7 and extending downward, which can meet the transmission distance requirements between the armature component 7 and the slider structure 4.

[0040] The following is combined with Figure 1-3 The specific configuration of the moving contact structure and the slider structure is explained in detail:

[0041] The base 1 includes two mounting bosses 13 formed on both sides of the mounting groove 11. The moving contact structure 3 includes a conductive bracket 32 ​​mounted on the two mounting bosses 13. The conductive bracket 32 ​​is designed to be located above the slider structure 4, so as not to interfere with the reciprocating movement of the slider structure 4 in the mounting groove. The spring assembly 31 includes two movable springs 311 symmetrically arranged on the conductive bracket 32. One end of each movable spring 311 is fixed to the conductive bracket 32, and the other end extends to the bottom of the conductive bracket 32 ​​and is linked with the slider structure 4 through a positioning structure. This movable spring is composed of multiple springs stacked together and can elastically deform and shift under pressure. The stationary contact structure 2 includes two stationary conductive sheets 21 arranged at intervals on the base 1 corresponding to the two movable springs. The two stationary conductive sheets 21 and the two movable springs are respectively provided with two pairs of movable contacts and stationary contacts. The bottom of the two stationary conductive sheets 21 is bent to form a guide end 22 that extends through to the bottom of the base 1, so that the two stationary conductive sheets 21 are connected to the circuit board through their respective guide ends 22. In this way, when the drive coil 81 is energized, the armature component 7 will push the slider structure 4 to move under the drive of electromagnetic force. The two moving springs will make conductive contact with the two stationary conductive plates 21 under the drive of the slider structure. With this structural design of moving springs and conductive brackets, the current will generate an electric repulsive force to push the moving springs when passing through the conductive brackets, so as to increase the contact force between the moving and stationary contacts.

[0042] In a preferred embodiment, the positioning structure includes two positioning hooks 5 disposed on both sides of the front end of the slider structure 4, and two hook grooves 51 disposed on the two positioning hooks 5. The other ends of the two moving springs are respectively positioned and inserted into the two hook grooves 51. Correspondingly, a locking slot is provided on the other end of the moving spring to cooperate with the positioning hooks 5. This positioning structure design realizes the linkage between the slider structure 4 and the two moving springs to prevent the other ends of the two moving springs from disengaging from the positioning hooks of the slider structure 4. It has good installation stability, and allows the two moving springs to elastically shift towards the side closer to the two stationary conductive sheets 21 under the action of the slider structure 4. When the moving springs separate from the stationary conductive sheets 21, the slider structure 4 can be reset and moved under the elastic force of the two moving springs. The assembly between this slider structure and the two moving springs is also relatively simple and convenient, and can be applied to automated assembly production, improving installation efficiency.

[0043] like Figure 5As shown, the conductive support 32 includes two vertical plate portions 321 respectively connecting the two movable springs, a central partition groove formed between the two vertical plate portions 321 and extending to the top of the conductive support 32, and a connecting portion 322 connected to the bottom of the two vertical plate portions 321. To reliably fix the conductive support 32 on the base 1, two mounting bosses 13 are provided with two mounting grooves. The bottom edge of the connecting portion 322 is bent to form two mounting feet 323 respectively fixedly inserted into the two mounting grooves. The two mounting feet 323 have an L-shaped structure. It should be noted that after assembly, the movable spring 311 leaves a gap with the conductive support; only its upper part is in fixed contact with the vertical plate portion 321. This forms a U-shaped current path between the two movable springs 311, passing through the two vertical plate portions 321 and the connecting portion 322. That is, current is transmitted through one movable spring to the conductive support 32, and then along the U-shaped current path on the conductive support 32 to the other movable spring. The advantage of this design is that by connecting the two stationary conductive plates, the two moving springs, and the conductive support to form a conductive loop, when the two moving springs 311 contact the two stationary conductive plates 21 and are energized, the current is input from one of the stationary conductive plates 21, then transmitted between the two moving springs and the conductive support 32, and finally output from the other stationary conductive plate 21. Since the current is transmitted along a U-shaped current path between the two moving springs and the conductive support, this increases the cross-sectional area of ​​the current passing through the moving springs and the conductive support, reduces the contact temperature rise, and allows for a larger current throughput. This enables the relay product to interrupt high-voltage, high-current loads, improving the product's performance.

[0044] Combination Figure 1-2 As shown, the base 1 is provided with a mounting partition 14 that blocks the other end of the mounting groove 11. The magnetic circuit drive assembly 8 and the slider structure 4 are respectively provided on both sides of the mounting partition 14, and the yoke is installed in a slot formed on one side of the mounting partition 14. The mounting partition 14 separates the drive coil 81 from the drive part 71 of the armature component 7. The base 1 is fitted with a cover 9. The cover 9 is provided with an insulating baffle 91 that abuts between the two mounting bosses 13 to separate the armature component 7 from the conductive support 32. This structure separates the armature component 7 from the conductive support 32 through the insulating baffle 91 on the cover 9. The insulating baffle 91 increases the electrical clearance between the armature component 7 and the conductive support 32, prevents arcing and creepage, and improves the overvoltage performance of the product.

[0045] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. An electromagnetic relay capable of withstanding high loads, comprising a base (1), and a magnetic circuit drive assembly (8), a moving contact structure (3), and a stationary contact structure (2) disposed on the base (1), and a transmission assembly movably disposed between the magnetic circuit drive assembly (8) and the moving contact structure (3), characterized in that: The transmission assembly includes an armature component (7) that can be oscillatingly disposed on the magnetic circuit drive assembly (8), and a slider structure (4) that can be reciprocally disposed on the base (1). The moving contact structure (3) includes a spring assembly (31) that forms a linkage with the slider structure (4). The spring assembly (31) is disposed opposite to the stationary contact structure (2). The armature component (7) has a driving part (71) that extends at an angle to the slider structure (4) by a predetermined length. The slider structure (4) and the driving part (71) are connected by a limiting structure. When the armature component (7) is attracted and oscillating by the magnetic circuit drive assembly (8), it pushes the slider structure (4) to move, so that the slider structure (4) drives the spring assembly to contact the stationary contact structure. The base (1) is provided with a mounting groove (11) extending along its length direction. The base (1) includes two mounting bosses (13) formed on both sides of the mounting groove (11). The movable contact structure (3) includes a conductive bracket (32) mounted on the two mounting bosses (13). The spring assembly (31) includes two movable springs (311) symmetrically arranged on the conductive bracket (32). One end of each of the two movable springs (311) is fixed to the conductive bracket (32), and the other end extends to the bottom of the conductive bracket (32) and is linked with the slider structure (4) through a positioning structure. The conductive support (32) includes two vertical plate portions (321) that are respectively connected to two movable springs, a middle partition groove formed between the two vertical plate portions (321) and extending to the top of the conductive support (32), and a connecting portion (322) connected to the bottom of the two vertical plate portions (321). Two mounting grooves are provided on the two mounting bosses (13). The bottom edge of the connecting portion (322) is bent to form two mounting feet (323) that are respectively inserted into the two mounting grooves. A U-shaped current path is formed between the two movable springs through the two vertical plate portions (321) and the connecting portion (322).

2. The electromagnetic relay with high load capacity according to claim 1, characterized in that: The slider structure (4) is movably accommodated in the mounting groove (11), and a guide structure is provided between the mounting groove (11) and the slider structure (4) to guide the slider structure (4) to move along the length direction of the base.

3. The electromagnetic relay with high load capacity according to claim 2, characterized in that: The guide structure includes a guide groove (12) extending in the same direction as the mounting groove (11) in the mounting groove (11), and a guide protrusion (41) disposed at the bottom of the slider structure (4) and slidably connected to the guide groove (12). The guide groove (12) extends out of one end of the mounting groove (11) and extends to the stationary contact structure (2).

4. The electromagnetic relay with high load capacity according to claim 3, characterized in that: The limiting structure includes a limiting slot disposed on the slider structure, and one end of the driving part is inserted into the limiting slot.

5. The electromagnetic relay with high load capacity according to any one of claims 2-4, characterized in that: The magnetic circuit drive assembly (8) includes a drive coil (81) and a yoke. The armature component (7) is L-shaped and oscillatingly connected to the upper end of the yoke (82), and a spring sheet structure is provided between it and the yoke (82). The drive part (71) is a sloping plate structure formed by narrowing the width of one end of the armature component (7) and extending downward.

6. The electromagnetic relay with high load capacity according to claim 5, characterized in that: The positioning structure includes two positioning hooks (5) on both sides of the front end of the slider structure (4) and two hook grooves (51) on the two positioning hooks (5). The other ends of the two moving springs are respectively positioned and inserted into the two hook grooves (51).

7. The electromagnetic relay with high load capacity according to claim 6, characterized in that: The static contact structure (2) includes two static conductive sheets (21) that are spaced apart on the base (1) corresponding to two moving springs. The two static conductive sheets (21) and the two moving springs are respectively provided with two pairs of moving contacts and static contacts. The bottom of the two static conductive sheets (21) is bent to form a guide foot end (22) that extends through to the bottom of the base.

8. The electromagnetic relay with high load capacity according to any one of claims 1-4, 6, and 7, characterized in that: The base (1) is provided with a mounting partition (14) that blocks the other end of the mounting groove (11). The magnetic circuit drive assembly (8) and the slider structure (4) are respectively provided on both sides of the mounting partition (14). It also includes a cover (9) sleeved on the base (1). An insulating baffle (91) is provided inside the cover (9) and inserted between the two mounting bosses (13) to separate the armature component (7) from the conductive bracket (32).

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