Iron core assembly of alternating current contactor
By designing the AC contactor core as a three-part composite structure and using fixing blocks and springs for fixation, the problems of inconvenient disassembly and poor heat dissipation of traditional cores are solved, achieving convenient disassembly and efficient heat dissipation.
Patent Information
- Application Number
- CN202423135957.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-19
AI Technical Summary
Traditional AC contactor core structures are inconvenient to disassemble and have poor heat dissipation.
The moving iron core is designed as three parts, consisting of a central part and two side parts. The stationary iron core is also designed as three parts, connected in series by a fixing block, and fixed by the rebound force of the spring. Ventilation holes are opened on the contact surface of the iron core to improve heat dissipation.
It enables convenient disassembly of the moving iron core and the stationary iron core and improves heat dissipation.
Smart Images

Figure CN223552471U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of AC contactor core assembly, and in particular to an AC contactor core assembly. Background Technology
[0002] The AC contactor core assembly is a key component of an AC contactor. The core is divided into a moving core and a stationary core. AC contactor core assemblies are widely used in industrial automation control, building electrical systems, and power systems to control the connection and disconnection of AC power.
[0003] Traditional AC contactors typically have their iron cores assembled into a single unit by stacking multiple chip plates, making them inconvenient to disassemble and resulting in relatively poor heat dissipation.
[0004] Therefore, those skilled in the art have provided an AC contactor core assembly to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an AC contactor core assembly. The moving core is designed in three parts: a central moving core and two side moving cores. Similarly, the stationary core is also designed in three parts: a central stationary core and two side stationary cores. All three parts of the moving and stationary cores are connected in series via fixed inserts. During assembly, two slide blocks of the same group slide down to compress the inserts. After connecting them in series, the slide blocks are released, and the spring's rebound force returns the inserts to their original positions, allowing them to be inserted into the holes of the fixed inserts for fixation. This design facilitates the disassembly of both the moving and stationary cores. Multiple ventilation holes are provided on the contact surfaces of the two side moving cores and the central moving core, as well as on the contact surfaces of the two side stationary cores and the central stationary core, thereby improving the heat dissipation of the moving and stationary cores.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] An AC contactor core assembly includes a central moving core and a central stationary core. Side moving cores are installed on both sides of the central moving core, and side stationary cores are installed at both ends of the central stationary core. Fixed blocks are integrally provided on both sides of one end of the side stationary core and the side moving core on the same side. Fixed brackets are integrally provided on both sides of one end of the side stationary core and the side moving core on the same side away from the fixed blocks. A spring is installed inside each fixed bracket. A slide is fixedly provided at one end of each spring. A post is fixedly provided at one end of each slide.
[0008] The above technical solution involves designing the moving iron core into three parts: a central moving iron core and two side moving iron cores. Similarly, the stationary iron core is also designed into three parts: a central stationary iron core and two side stationary iron cores. All three parts of the moving and stationary iron cores are connected in series via fixed inserts. During assembly, two slides of the same group are slid down to compress the inserts. After connecting them in series, the slides are released, and the spring's rebound force causes the inserts to reset and insert into the holes of the fixed inserts, thus achieving fixation. This design facilitates the disassembly of both the moving and stationary iron cores.
[0009] Furthermore, multiple ventilation holes are provided on the mating surfaces of the two side moving iron cores and the middle moving iron core, and multiple ventilation holes are provided on the mating surfaces of the two side stationary iron cores and the middle stationary iron core.
[0010] Through the above technical solution, multiple ventilation holes are provided on the mating surfaces of the two side moving iron cores and the middle moving iron core, as well as on the mating surfaces of the two side stationary iron cores and the middle stationary iron core, thereby improving the heat dissipation effect of the moving iron cores and stationary iron cores.
[0011] Furthermore, each of the fixed plugs has a socket at one end, and the diameter of each socket is the same as the diameter of each plug post;
[0012] With the above technical solution, a socket is provided at one end of each fixed plug, and the diameter of each socket is the same as the diameter of each plug, which facilitates the insertion and fixing of the plug.
[0013] Furthermore, a pair of fixed inserts on one side of the moving iron core at one end penetrates the middle moving iron core and the moving iron core at the other end, and a pair of fixed inserts on one side of the stationary iron core at one end penetrates the middle stationary iron core and the moving iron core at the other end.
[0014] Through the above technical solution, a pair of fixed plugs on one side of the moving iron core at one end pass through the middle moving iron core and the side moving iron core at the other end, thus facilitating the series connection of the three parts of the moving iron core. Similarly, a pair of fixed plugs on one side of the stationary iron core at one end pass through the middle stationary iron core and the side moving iron core at the other end, thus facilitating the series connection of the three parts of the stationary iron core.
[0015] Furthermore, a fixing post is integrally provided at the bottom center of the central moving iron core;
[0016] The above technical solution integrates a fixing post at the bottom center of the central moving iron core, which facilitates the installation of the spring in the AC contactor.
[0017] This utility model has the following beneficial effects:
[0018] 1. This utility model proposes an AC contactor core assembly. The moving iron core is designed into three parts, consisting of a central moving iron core and two side moving iron cores. The stationary iron core is also designed into three parts, consisting of a central stationary iron core and two side stationary iron cores. The three parts of the moving and stationary iron cores are connected in series by fixed plugs. During assembly, two slides of the same group are slid down to compress the plugs. After connecting them in series, the slides are released, and the spring rebound force causes the plugs to return to their original position and insert into the plug holes of the fixed plugs, thereby achieving fixation. This design facilitates the disassembly of both the moving and stationary iron cores. Multiple ventilation holes are provided on the mating surfaces of the two side moving iron cores and the central moving iron core, as well as on the mating surfaces of the two side stationary iron cores and the central stationary iron core, thereby improving the heat dissipation effect of the moving and stationary iron cores. Attached Figure Description
[0019] Figure 1 This is a schematic diagram showing the unfolded structure of an AC contactor core assembly proposed in this utility model.
[0020] Figure 2 This is an orthographic view of an AC contactor core assembly proposed in this utility model.
[0021] Figure 3 This is a cross-sectional view of an AC contactor core assembly proposed in this utility model.
[0022] Figure 4 This is a top axonometric view of an AC contactor core assembly proposed in this utility model.
[0023] Figure 5 for Figure 3 Enlarged view of point A in the middle.
[0024] Legend:
[0025] 1. Central moving iron core; 2. Fixed post; 3. Side moving iron core; 4. Central stationary iron core; 5. Side stationary iron core; 6. Fixed bracket; 7. Fixed insert block; 8. Spring; 9. Slide; 10. Insert post; 11. Ventilation hole; 12. Insertion hole. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0027] Reference Figure 1-5This utility model provides an embodiment of an AC contactor core assembly, comprising a central moving core 1 and a central stationary core 4. Side moving cores 3 are installed on both sides of the central moving core 1, and side stationary cores 5 are installed at both ends of the central stationary core 4. A fixing block 7 is integrally provided on both sides of one end of the side stationary core 5 and the side moving core 3 on the same side. A fixing seat 6 is integrally provided on both sides of one end of the side stationary core 5 and the side moving core 3 on the same side away from the fixing block 7. A spring 8 is installed inside each fixing seat 6, and a slide 9 is fixedly provided at one end of each spring 8. Each slide 9 has a... The device is fixedly equipped with a plug 10. The moving iron core is designed to be divided into three parts, consisting of a central moving iron core 1 and two side moving iron cores 3. The stationary iron core is also designed to be divided into three parts, consisting of a central stationary iron core 4 and two side stationary iron cores 5. The three parts of the moving iron core and the stationary iron core are connected in series by a fixed plug 7. During assembly, the two slides 9 of the same group need to be slid down to compress the plug 10. After being connected in series, the slides 9 are released, and the rebound force of the spring 8 causes the plug 10 to return to its original position and be inserted into the insertion hole 12 of the fixed plug 7, thereby achieving fixation. This design facilitates the disassembly of both the moving iron core and the stationary iron core.
[0028] Multiple ventilation holes 11 are provided on the mating surfaces of the two side moving iron cores 3 and the central moving iron core 1, and multiple ventilation holes 11 are provided on the mating surfaces of the two side stationary iron cores 53 and the central stationary iron core 4. Multiple ventilation holes 11 are provided on the mating surfaces of the two side moving iron cores 3 and the central moving iron core 1, as well as on the mating surfaces of the two side stationary iron cores 53 and the central stationary iron core 4, thereby improving the heat dissipation effect of the moving and stationary iron cores. Each fixed plug 7 has a plug hole 12 at one end, and the diameter of each plug hole 12 is the same as the diameter of each plug post 10, facilitating the insertion and fixing of the plug post 10. One end of the side moving iron core 3... A pair of fixed plugs 7 on one side of the iron core 3 pass through the middle moving iron core 1 and the side moving iron core 3 at the other end. A pair of fixed plugs 7 on one side of the stationary iron core 5 at one end pass through the middle stationary iron core 4 and the side moving iron core 3 at the other end. A pair of fixed plugs 7 on one side of the moving iron core 3 at one end pass through the middle moving iron core 1 and the side moving iron core 3 at the other end, thus facilitating the series connection of the three parts of the moving iron core. A pair of fixed plugs 7 on one side of the stationary iron core 5 at one end pass through the middle stationary iron core 4 and the side moving iron core 3 at the other end, thus facilitating the series connection of the three parts of the stationary iron core. A fixed post 2 is integrally provided at the bottom center of the middle moving iron core 1, thus facilitating the installation of the spring 8 in the AC contactor.
[0029] Working principle: The moving iron core is designed into three parts, consisting of a central moving iron core 1 and two side moving iron cores 3. The stationary iron core is also designed into three parts, consisting of a central stationary iron core 4 and two side stationary iron cores 5. The three parts of the moving and stationary iron cores are connected in series by fixed plugs 7. During assembly, the two slides 9 of the same group need to be slid down to compress the plugs 10. After connecting in series, the slides 9 are released, and the rebound force of the spring 8 causes the plugs 10 to return to their original position and be inserted into the plug hole 12 of the fixed plug 7, thereby achieving fixation. This design facilitates the disassembly of both the moving and stationary iron cores. The contact surfaces of the two side moving iron cores 3 and the central moving iron core 1, as well as the contact surfaces of the two side stationary iron cores 5 and the central stationary iron core 4, are provided with multiple ventilation holes 11 to improve the heat dissipation of the moving and stationary iron cores.
[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An AC contactor core assembly, comprising a central moving core (1) and a central stationary core (4), characterized in that: Side moving iron cores (3) are installed on both sides of the central moving iron core (1), and side stationary iron cores (5) are installed at both ends of the central stationary iron core (4). Fixed plugs (7) are integrally provided on both sides of one end of the side stationary iron core (5) and the side moving iron core (3) on the same side. Fixed brackets (6) are integrally provided on both sides of one end of the side stationary iron core (5) and the side moving iron core (3) on the same side away from the fixed plugs (7). A spring (8) is installed inside each fixed bracket (6). A slide (9) is fixedly provided at one end of each spring (8). A plug (10) is fixedly provided at one end of each slide (9).
2. The AC contactor core assembly according to claim 1, characterized in that: Multiple ventilation holes (11) are provided on the mating surfaces of the two side moving iron cores (3) and the middle moving iron core (1), and multiple ventilation holes (11) are provided on the mating surfaces of the two side stationary iron cores (5) and the middle stationary iron core (4).
3. The AC contactor core assembly according to claim 1, characterized in that: Each of the fixed plugs (7) has a socket (12) at one end, and the diameter of each socket (12) is the same as the diameter of each plug (10).
4. The AC contactor core assembly according to claim 1, characterized in that: A pair of fixed inserts (7) on one side of the moving iron core (3) at one end penetrates the moving iron core (1) at the middle end and the moving iron core (3) at the other end. A pair of fixed inserts (7) on one side of the stationary iron core (5) at one end penetrates the stationary iron core (4) at the middle end and the moving iron core (3) at the other end.
5. The AC contactor core assembly according to claim 1, characterized in that: A fixing post (2) is integrally provided at the bottom center of the central moving iron core (1).