Armature assembly of electromagnetic relay

Abstract

The utility model provides an armature assembly of an electromagnetic relay, and belongs to the technical field of electromagnetism. An armature assembly of an electromagnetic relay comprises an armature, a movable contact spring, magnetic steel and an injection molding insulating part. According to the utility model, the armature is divided into the middle part and the contact parts located at the two ends of the middle part, and the bottom surface of each contact part is provided with the contact surface, and the contact surface protrudes out of or sinks into the bottom surface of the middle part, so that the interval between the contact surface and the corresponding end part on the iron core can be changed, and when the armature is attracted by the iron core, the contact surface is not damaged. According to the utility model, the action stroke of the armature and the gap between the movable contact on the movable contact spring and the static contact on the electromagnetic base can be changed, the structure is more flexible, different use requirements are met, the adaptability is better, the processing is convenient, the manufacturing cost is reduced, and the popularization and use are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic technology, specifically to an armature assembly of an electromagnetic relay. Background Technology

[0002] As a control device, an electromagnetic relay has both a control structure and a controlled structure. That is, it controls the controlled structure through the control structure to meet the needs of remote automatic control. It is widely used in control circuits and is applicable to home appliances, industrial processing equipment, aerospace, automobiles and ships.

[0003] Currently, commercially available electromagnetic relays typically include an electromagnetic base and an armature assembly. The electromagnetic base generates a magnetic field when energized, controlling the armature assembly to perform corresponding actions, thereby achieving contact closure or separation. For example, patent CN202320591315 discloses a relay comprising a base assembly and a movable assembly. The movable assembly can swing relative to the base assembly. The movable assembly includes an armature, a moving spring, and an insulating component. The insulating component is injection molded onto the armature and the moving spring, integrating them into a single unit. In this case, a rotating groove is provided in the bottom center area of ​​the armature or insulating component, and a top block is provided in the top center area of ​​the base assembly. When engaged, the rotating groove of the movable assembly fits onto the top block of the base assembly, allowing the movable assembly to form a lever structure, enabling vertical swinging at both ends. This allows the movable spring, which is integrally injection molded, to move, causing the moving contact on the moving spring to contact or separate from the corresponding stationary contact on the base assembly. Although the above structure can meet the requirements of the armature assembly for yaw, it is usually rectangular and has a fixed structure, which makes it impossible to make adjustments for different needs later, such as adjusting the stroke or contact gap. Its use is limited and its adaptability is insufficient. Summary of the Invention

[0004] In view of the above-mentioned problems existing in the prior art, the present invention aims to provide an armature assembly for an electromagnetic relay, wherein the armature is arranged in an elongated shape, the armature includes a middle part and contact parts located at both ends of the middle part, and each contact part has a contact surface on its bottom surface. The contact surface is arranged to protrude or be recessed in the bottom surface of the middle part. The travel and contact gap can be adjusted by the protrusion distance or the recess depth of the protruding or recessed contact surface, thereby adapting to different usage requirements and reducing usage limitations.

[0005] The specific technical solution is as follows:

[0006] An armature assembly for an electromagnetic relay includes an armature, moving springs, a magnet, and injection-molded insulating parts. The armature is elongated and includes a middle section and contact sections at both ends of the middle section. Moving springs are arranged in the same direction and spaced apart on both sides of the armature. Injection-molded insulating parts are provided between the middle section of the armature and the moving springs on both sides. The magnet is located at the bottom of the middle section of the armature. Each contact section has a contact surface on its bottom surface, which may protrude or be recessed into the bottom surface of the middle section.

[0007] In the armature assembly of the aforementioned electromagnetic relay, a contact surface of a contact portion includes a main contact surface and an adjustment surface, wherein the bottom surface of the main contact surface protrudes or is recessed into the bottom surface of the adjustment surface.

[0008] In the armature assembly of the aforementioned electromagnetic relay, two adjustment surfaces are provided. Along the width direction of the armature, the main contact surface is located in the middle of the contact portion, and adjustment surfaces are provided on both sides of the main contact surface.

[0009] In the armature assembly of the aforementioned electromagnetic relay, the adjusting surface is an inclined surface, with one side of the adjusting surface flush with the main contact surface and the other side of the adjusting surface inclined toward the top surface of the contact portion.

[0010] In the armature assembly of the aforementioned electromagnetic relay, one or both of the adjusting surfaces are cut off to form a cut; or the main contact surface is cut off to form a cut.

[0011] In the armature assembly of the aforementioned electromagnetic relay, the contact surface of the other contact portion is a plane.

[0012] In the armature assembly of the aforementioned electromagnetic relay, a mis-proof structure is provided at one end of another contact portion away from the middle portion. The mis-proof structure is a mis-proof inclined surface, which is obtained by chamfering one edge of the contact portion.

[0013] In the aforementioned armature assembly of an electromagnetic relay, the middle part and the contact parts at both ends are integrally formed.

[0014] In the aforementioned armature assembly of an electromagnetic relay, the injection-molded insulating component is integrally injection-molded onto the armature, magnet, and moving spring.

[0015] In the armature assembly of the aforementioned electromagnetic relay, a limiting groove is formed on the middle part of the armature and on the side wall along its width direction, and the limiting groove is located on both sides of the armature.

[0016] The positive effects of the above technical solution are:

[0017] The armature assembly of the aforementioned electromagnetic relay, by configuring the armature to include a middle section and contact sections located at both ends of the middle section, and with each contact section having a contact surface on its bottom surface, and the contact surface being arranged to protrude or recess into the bottom surface of the middle section, changes the gap between the contact surface and the iron core, thereby altering the travel and contact gap to meet different usage requirements. This results in better structural adaptability and lower manufacturing costs. Furthermore, by changing the relative protrusion or recess of the main contact surface and the adjustment surface, as well as the state of the cut formed after removing the adjustment surface or the main contact surface, the contact area between the armature and the yoke in the electromagnetic base can be altered, thereby changing the magnitude of the suction force. This allows for adjustment of the suction force, meeting different usage requirements and providing better adaptability. Attached Figure Description

[0018] Figure 1 This is a structural diagram of an embodiment of the armature assembly of an electromagnetic relay according to the present invention;

[0019] Figure 2 This is a structural diagram of the armature of a preferred embodiment of the present invention;

[0020] Figure 3 This is an enlarged view of a contact portion of the armature in a preferred embodiment of the present invention;

[0021] Figure 4 This is an enlarged view of another contact portion of the armature in a preferred embodiment of the present invention.

[0022] In the attached diagram: 1. Armature; 11. Middle part; 12. Contact part; 13. Limiting groove; 121. Contact surface; 122. Anti-misalignment inclined surface; 1211. Main contact surface; 1212. Adjustment surface; 2. Moving spring; 3. Magnet; 4. Injection-molded insulating part. Detailed Implementation

[0023] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following embodiments are provided in conjunction with the appendix. Figure 1 To be continued Figure 4 The technical solution provided by this utility model is described in detail, but the following content is not intended to limit this utility model.

[0024] Figure 1 This is a structural diagram of an embodiment of the armature assembly of an electromagnetic relay according to the present invention; Figure 2 This is a structural diagram of the armature according to a preferred embodiment of the present invention. Figure 1 and Figure 2As shown, the armature assembly of the electromagnetic relay provided in this embodiment includes: armature 1, moving spring 2, magnet 3 and injection-molded insulating part 4. The armature 1 is long and strip-shaped. Along the length of the armature 1, the armature 1 is divided into a middle part 11 and contact parts 12 located at both ends of the middle part 11. The armature 1 can be deflected by the contact parts 12 at both ends cooperating with the electromagnetic base.

[0025] Specifically, movable springs 2 are arranged in the same direction and at intervals on both sides of the armature 1, so that the two ends of the movable springs 2 can form moving contacts, providing conditions for subsequent circuit modification by cooperating with the stationary contacts on the electromagnetic base. In addition, injection-molded insulating parts 4 are provided between the middle part 11 of the armature 1 and the movable springs 2 on both sides. That is, the movable springs 2 on both sides are connected to the two sides of the armature 1 through the injection-molded insulating parts 4, thereby meeting the usage requirement that the movable springs 2 move synchronously when the armature 1 moves. In addition, the magnet 3 is set at the bottom of the middle part 11 of the armature 1, which enhances the magnetic force and maintains the structural stability of the armature 1, making it less prone to deformation. At the same time, a contact surface 121 is provided on the bottom surface of each contact part 12. The armature 1 can be deflected by selectively contacting or moving away from the end of the iron core on the electromagnetic base through the contact surface 121, thereby meeting the usage requirements. Furthermore, the contact surface 121 is arranged to protrude or recess into the bottom surface of the middle part 11. By protruding or recessing the contact surface 121, the distance between the contact surface 121 and the end of the iron core can be adjusted, thereby realizing the adjustment of the stroke and the contact gap, meeting different usage requirements, and having better structural adaptability. Moreover, when processing the same type of products with different requirements, there is no need to change the processing mold; only the contact surface 121 needs to be appropriately adjusted, thus reducing manufacturing costs.

[0026] Figure 3 This is an enlarged view of a contact portion of the armature according to a preferred embodiment of the present invention. Figures 1 to 3 As shown, the contact surface 121 of a contact part 12 is composed of multiple surfaces. At this time, the contact surface 121 includes a main contact surface 1211 and an adjustment surface 1212. When set, the bottom surface of the main contact surface 1211 is arranged to protrude or be recessed into the bottom surface of the adjustment surface 1212. That is, when the armature 1 swings, the main contact surface 1211 can contact the iron core, while the adjustment surface 1212 cannot contact the iron core, or the adjustment surface 1212 can contact the iron core while the main contact surface 1211 cannot contact the iron core. Thus, the suction force can be adjusted by changing the size of the fit between the main contact surface 1211 or the adjustment surface 1212 and the iron core, which meets the usage requirements of adjustable suction force, further adapts to different usage requirements, and has higher structural flexibility.

[0027] More specifically, the contact surface 121, which includes a main contact surface 1211 and an adjustment surface 1212, has two adjustment surfaces 1212 and one main contact surface 1211, forming a three-surface structure. In this case, the main contact surface 1211 is positioned in the middle of the contact portion 12 along the width direction of the armature 1, so that the main contact surface 1211 is located at the center of the contact portion 12 of the armature 1. This ensures that the armature 1 can deflect stably when it cooperates with the iron core to achieve deflection. Furthermore, adjusting surfaces 1212 are provided on both sides of the main contact surface 1211, meaning the two adjusting surfaces 1212 are symmetrically arranged on both sides of the main contact surface 1211. This ensures that the space on both sides of the main contact surface 1211 is evenly distributed, preventing other structures from affecting either side of the main contact surface 1211. This ensures that only the main contact surface 1211 or the adjusting surface 1212 engages with the iron core. The suction force can be adjusted by changing the size of the main contact surface 1211 or the adjusting surface 1212, resulting in greater structural flexibility and adaptability to different applications. It is worth noting that because the product includes a moving spring 2, the reaction force received by it when releasing the armature 1 is insufficient. Therefore, it is necessary to reduce the suction force at one end to prevent the release voltage from being too low. Thus, the appropriate size of the main contact surface 1211 or the adjusting surface 1212 can be selected to meet different needs, providing better adaptability.

[0028] More specifically, the adjusting surface 1212 in the contact surface 121, which includes the main contact surface 1211 and the adjusting surface 1212, is set as an inclined surface. At this time, one side of the adjusting surface 1212 is flush with the main contact surface 1211, while the other side of the adjusting surface 1212 is inclined towards the top surface of the contact portion 12. This ensures that the most prominent part of the contact portion 12 is the main contact surface 1211, and the adjusting surface 1212 does not interfere with the fit between the main contact surface 1211 and the iron core. At the same time, it also ensures its simple structure, which is convenient to be directly processed by stamping or other methods without the need for additional complex processing. The structural design is more reasonable.

[0029] More specifically, by removing one or both of the adjustment surfaces 1212 to form a cut, the contact area between the contact surface 121 of the armature 1 and the yoke of the electromagnetic base can be changed. Alternatively, by removing the main contact surface 1211 to form a cut, the contact area between the contact surface 121 of the armature 1 and the yoke of the electromagnetic base can be changed, thus adjusting the suction force to meet different usage requirements.

[0030] Figure 4 This is an enlarged view of another contact portion of the armature in a preferred embodiment of the present invention. Figure 1 , Figure 2 as well as Figure 4As shown, the contact surface 121 of the other contact part 12 is set as a plane, so that the contact surfaces 121 of the contact parts 12 at both ends of the armature 1 can be different. That is, when the armature 1 is deflected to a certain state, a greater suction force can be maintained, so that the states at both ends of the armature 1 can be different, and the functions at both ends of the armature 1 can be set to be different. Thus, the deflection at both ends of the armature 1 can be used to adapt to different usage requirements, thereby improving adaptability.

[0031] More specifically, an anti-misalignment structure is provided on another contact portion 12, which is a plane contact surface 121, and on one end away from the middle portion 11. The anti-misalignment structure can serve as a positioning guide structure for the direction and position when the armature 1, magnet 3, moving spring 2 and injection molded insulating part 4 are integrally molded, preventing misalignment or reverse orientation. It also provides directional indication for subsequent assembly, ensuring product quality.

[0032] More specifically, the error-proofing structure on the contact part 12 is an error-proofing inclined surface 122. In this case, the error-proofing inclined surface 122 is obtained by chamfering one edge of the contact part 12, which is easy to process and has little impact on the structure of the armature 1 itself. It meets the error-proofing requirements while maintaining the normal use of the armature 1.

[0033] More specifically, the middle part 11 and the contact parts 12 at both ends of the armature 1 are selected as an integral structure, that is, the armature 1 is an integral structure, which has higher structural strength, is not easily deformed and damaged, and is convenient to process and manufacture, thus reducing processing and use costs.

[0034] More specifically, the injection-molded insulating component 4 is integrally injection-molded onto the armature 1, magnet 3, and moving spring 2. This integral injection molding eliminates the need for additional assembly, making production and processing more convenient. In addition, it also improves the overall structural integrity of the armature assembly, making it less prone to deformation, detachment, and separation, thus ensuring better structural stability and performance.

[0035] More specifically, a limiting groove 13 is also formed on the side wall of the middle portion 11 of the armature 1 along its width direction. In this case, limiting grooves 13 are provided on both sides of the middle portion 11 of the armature 1, and the limiting grooves 13 on both sides are symmetrically arranged. This allows the injection-molded insulating part 4 to be mutually limited through the limiting grooves 13 during subsequent injection molding, improving the bonding ability between the armature 1 and the injection-molded insulating part 4, and making the structural design more reasonable. It is worth noting that, in addition to the structure of providing limiting grooves 13 on the armature 1 as described above, the structure of providing protrusions on the armature 1 should also be considered within the protection scope of this embodiment.

[0036] The armature assembly of the electromagnetic relay provided in this embodiment includes an armature 1, a moving spring 2, a magnet 3, and an injection-molded insulating part 4. By dividing the armature 1 into a middle part 11 and contact parts 12 located at both ends of the middle part 11, and each contact part 12 has a contact surface 121 on its bottom surface, and the contact surface 121 is arranged to protrude or be recessed from the bottom surface of the middle part 11, the interval between the contact surface 121 and the corresponding end on the iron core can be changed. This allows the armature 1 to change its stroke and the gap between the moving contact on the moving spring 2 and the stationary contact on the electromagnetic base when the armature 1 is attracted by the iron core. The structure is more flexible, thereby meeting different usage requirements, having better adaptability, and being easier to process, reducing manufacturing costs and facilitating widespread use.

[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should recognize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An armature assembly of an electromagnetic relay comprising an armature, a moving reed, a magnetic steel, and an injection-molded insulation member, characterized in that, The armature is in a strip shape, and along the length direction of the armature, the armature comprises a middle part and contact parts at both ends of the middle part, both sides of the armature are provided with the same direction and interval arranged moving reeds, the middle part of the armature and both sides of the moving reeds are provided with the injection insulation parts, the magnetic steel is arranged at the bottom of the middle part of the armature, and meanwhile, the bottom surface of each contact part is provided with a contact surface, the contact surface is protruded or recessed from the bottom surface of the middle part.

2. An armature assembly for an electromagnetic relay according to claim 1, wherein The contact surface of one contact part comprises a main contact surface and an adjusting surface, the bottom surface of the main contact surface is protruded or recessed from the bottom surface of the adjusting surface.

3. An armature assembly for an electromagnetic relay according to claim 2, wherein The adjusting surface is provided with two, along the width direction of the armature, the main contact surface is arranged at the middle of the contact part, and both sides of the main contact surface are provided with the adjusting surface.

4. An armature assembly for an electromagnetic relay according to claim 3, wherein The adjusting surface is an inclined surface, one side of the adjusting surface is flush with the main contact surface, and the other side of the adjusting surface is inclined towards the direction of the top surface of the contact part.

5. An armature assembly for an electromagnetic relay according to claim 3, wherein One or both of the adjusting surfaces are cut to form a cutout; or the main contact surface is cut to form a cutout.

6. An armature assembly for an electromagnetic relay according to any one of claims 2-5, characterized in that The contact surface of the other contact part is a plane.

7. An armature assembly for an electromagnetic relay according to claim 6, wherein The end of the other contact part away from the middle part is provided with an error-proof structure, the error-proof structure is an error-proof inclined surface, and the error-proof inclined surface is obtained by chamfering an edge of the contact part.

8. The armature assembly of claim 1, wherein, The middle part and the contact parts at both ends are an integral structure.

9. The armature assembly of claim 1, wherein, The injection insulation part is integrally injection molded on the armature, the magnetic steel and the moving reed.

10. An armature assembly for an electromagnetic relay according to claim 9, wherein A limiting groove is arranged on the side wall of the middle part of the armature along the width direction of the middle part, and the limiting groove is located at both sides of the armature.

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