A new electromagnet

Abstract

A novel electromagnet includes a yoke frame, a skeleton core, a stationary iron core, and a moving iron core assembly. The yoke frame is open at both ends. The skeleton core is installed within the yoke frame and a coil is wound around its outer wall. The stationary iron core is fixed relative to the upper end of the inner cavity of the skeleton core. The moving iron core assembly passes through the yoke frame and the skeleton core and is movable relative to the stationary iron core, with the moving iron core assembly designed to move a predetermined distance. A first core plate is provided on the lower peripheral wall of the skeleton core, positioned relative to the open side of the yoke frame. A pair of conductive elements are also provided on the lower end of the first core plate. A connector is installed on the lower end of the yoke frame, with a connector cavity on the connector. One end of each conductive element extends into the connector cavity to form a conductive connection with the wire harness assembly. This invention allows the wire harness assembly to be inserted into the connector cavity to form a contact connection with the conductive elements, facilitating automated coil winding. The overall structural design is reasonable, resulting in higher production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of electromagnet technology, and in particular to a novel electromagnet. Background Technology

[0002] An electromagnet is a device that generates electromagnetic fields when energized. Existing electromagnets include a housing, a coil, a moving iron core assembly, a stationary iron core, and a spring. Currently, the device is powered by a coil with a wire harness assembly. This method makes it impossible to use an automatic winding machine to complete the winding, resulting in low production efficiency and an unreasonable overall structure. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a new type of electromagnet with reasonable structure and high production efficiency.

[0004] The technical solution adopted by this utility model to solve its technical problem is a novel electromagnet, including a magnetic yoke frame, a skeleton core, a stationary iron core, and a moving iron core assembly. The front and rear ends of the magnetic yoke frame are open. The skeleton core is installed inside the magnetic yoke frame and a coil is wound around its outer wall. The stationary iron core is fixedly set at the upper end of the inner cavity of the skeleton core. The moving iron core assembly passes through the magnetic yoke frame and the skeleton core and is movably set relative to the stationary iron core. The moving iron core assembly is designed to move a predetermined distance. A first core plate is provided on the lower peripheral wall of the skeleton core. The first core plate is set relative to the open side of the magnetic yoke frame, and a pair of conductive elements are provided on the lower end of the first core plate. A plug-in socket is also installed on the lower end of the magnetic yoke frame. The plug-in socket has a plug-in cavity for installing a wire harness assembly, and one end of each conductive element extends into the plug-in cavity to form a conductive connection with the wire harness assembly.

[0005] The advantages of the above technical solution are as follows: By setting a first core plate at the corresponding position of the skeleton core and setting conductive elements on the first core plate, and by setting a plug-in socket so that one end of the conductive elements after fixed installation extends into the plug-in cavity of the plug-in socket, the above structure allows the coil and the wire harness assembly to adopt a separate structure, and allows the wire harness assembly to be inserted into the plug-in cavity to form a contact connection with the conductive elements. The coil can also be wound on the skeleton core by an automatic winding machine, realizing automation. After winding, it is only necessary to connect the two ends of the coil to the corresponding conductive elements respectively. The overall structure design is reasonable and the production efficiency will be higher.

[0006] Furthermore, the lower side of the first core board is provided with a pair of connecting protrusions, and the conductive element is inserted into the corresponding connecting protrusion.

[0007] The advantages of adopting the above technical solution are: by setting a connecting protrusion for installing conductive components on the first core board, the installation stability of conductive components is higher, the cooperation with the wire harness assembly is more stable, and the structural design is more reasonable.

[0008] Furthermore, a second core plate portion and a third core plate portion are respectively provided on the outer walls of both ends of the skeleton core. The second core plate portion and the third core plate portion abut against the corresponding inner walls of the magnetic yoke frame, and the first core plate portion is formed on the corresponding side wall of the third core plate portion.

[0009] The advantages of adopting the above technical solution are as follows: by setting the second core plate and the third core plate, the fit between the skeleton core and the magnetic yoke frame is more stable and the use is more reasonable. Furthermore, the first core plate is set on the third core plate, which makes the structure of the skeleton core more reasonable, the first core plate has higher strength, and the use is safer.

[0010] Furthermore, two mounting protrusions are formed on the lower side of the magnetic yoke frame. The mounting protrusions are arranged opposite to the two sides of the first core plate and are engaged with the corresponding hooks on the plug-in base.

[0011] The advantages of the above technical solution are: by using mounting protrusions and hooks for fixing, the installation and disassembly of the connector is more convenient, and the structural design is simple and reasonable.

[0012] Furthermore, the magnetic yoke frame is provided with a first mounting hole and a second mounting hole at the axial center of its upper and lower ends, respectively. The upper end of the stationary iron core is provided with a first mounting protrusion ring, which is fastened to the first mounting hole. The lower end of the skeleton core is provided with a second mounting protrusion ring, which is fastened to the second mounting hole.

[0013] The advantages of the above technical solution are: the position of the stationary iron core is effectively limited by the cooperation of the first mounting hole and the first mounting protrusion ring, and the position of the skeleton core is effectively limited by the cooperation of the second mounting hole and the second mounting protrusion ring, making the use safer and the fixing method simple and reasonable.

[0014] Furthermore, the moving iron core assembly includes a moving iron core, a core rod, and an elastic element. The two ends of the moving iron core are respectively provided with a mounting ring edge and a connecting hole. The mounting ring edge extends to the lower end of the magnetic yoke frame. The upper end of the core rod extends from inside the stationary iron core to the upper end of the magnetic yoke frame. The lower end of the core rod is provided with a insertion part, which is fixed to the insertion hole on the connecting hole. The elastic element is disposed between the mounting ring edge and the lower end of the magnetic yoke frame.

[0015] The advantages of the above technical solution are as follows: The mounting ring is used to limit the position of the elastic element. Compared with the existing technology that requires an additional retaining ring to limit the elastic element, this structure is simpler. At the same time, the mounting ring allows the moving iron core to move a predetermined distance closer to the stationary iron core when the electromagnet is energized, which will cause the elastic element to be compressed. Therefore, when the electromagnet is de-energized, the moving iron core is reset by the elastic potential energy of the elastic element. In addition, the connecting hole has a socket, one end of the core rod extends from the stationary iron core to the outside of the magnetic yoke frame, and the other end of the core rod has a fixing part that is inserted into the socket. The fixing part and the socket make the core rod and the moving iron core integrally connected, so that the movement of the moving iron core drives the movement of the core rod to achieve the purpose of controlling the external electrical switch.

[0016] Furthermore, the outer peripheral wall of the connecting hole is set as a first conical surface, and the inner peripheral wall of the clearance cavity of the stationary iron core is set as a second conical surface. The first conical surface and the second conical surface have the same taper and a gap is left between them.

[0017] The advantages of the above technical solution are: by using a first conical surface and a second conical surface, and leaving a gap between the first conical surface and the second conical surface, the cooperation effect between the moving iron core and the stationary iron core will be better than that of the existing technology which uses a vertical surface.

[0018] Furthermore, a limiting lock is fixed at the upper end of the core rod, and a limiting protrusion is provided at the lower end of the magnetic yoke frame. The limiting protrusion is circumferentially arranged and limits the elastic element.

[0019] The advantages of the above technical solution are: the setting of the limiting lock allows the moving iron core to move a predetermined distance away from the stationary iron core when it is driven to reset by the elastic element, which is more reasonable. The setting of the limiting protrusion can form a circumferential limit on the elastic element, making it less likely to twist and deform when compressed.

[0020] Furthermore, the magnetic yoke frame includes a retainer and a sealing plate. The bottom of both sides of the retainer is formed with mounting notches, and the sealing plate is formed with mounting protrusions on both sides. The mounting protrusions are fixed to the mounting notches. The retainer is also provided with a first connecting part and a second connecting part on one side.

[0021] The advantages of the above technical solution are: the magnetic yoke frame adopts an assembly structure of retainer and sealing plate, which facilitates the installation of each component. At the same time, the sealing plate and retainer effectively limit the position through the installation protrusion and installation notch. The structural design is simple and reasonable. In addition, by setting the first connecting part and the second connecting part, it is convenient for the user to fix the magnetic yoke frame through external connecting parts. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the skeleton core structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the plug-in structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the sealing plate structure of this utility model;

[0027] Figure 6 This is a schematic diagram of the cage structure of this utility model.

[0028] In the diagram: 1-Magnetic yoke frame, 2-Skeleton core, 3-Static iron core, 4-Moving iron core assembly, 5-First core plate, 6-Conductive component, 7-Plug-in socket, 8-Plug-in cavity, 9-Connecting protrusion, 10-Second core plate, 11-Third core plate, 12-Mounting protrusion, 13-First mounting through hole, 14-Second mounting through hole, 15-First mounting protrusion ring, 16-Second mounting protrusion ring, 17-Moving iron core, 18-Core rod, 19-Elastic component, 20-Mounting ring edge, 21-Connecting hole, 22-Plug-in part, 23-First conical surface, 24-Second conical surface, 25-Limiting lock, 26-Limiting protrusion, 27-Retainer, 28-Sealing plate, 29-Mounting notch, 30-Mounting protrusion, 31-First connecting part, 32-Second connecting part. Detailed Implementation

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model and / or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without creative effort. Furthermore, references to orientation only indicate the relative positional relationship between the components, not their absolute positional relationship.

[0030] Please see Figures 1 to 6As shown, a novel electromagnet includes a yoke frame 1, a skeleton core 2, a stationary iron core 3, and a moving iron core assembly 4. The yoke frame 1 is open at both ends. The skeleton core 2 is installed inside the yoke frame 1 with a coil wound around its outer wall. The stationary iron core 3 is fixed relative to the upper end of the inner cavity of the skeleton core 2. The moving iron core assembly 4 passes through the yoke frame 1 and the skeleton core 2 and is movable relative to the stationary iron core 3. The moving iron core assembly 4 is designed to move a predetermined distance. A first core plate portion 5 is provided on the lower peripheral wall of the skeleton core 2. The first core plate portion 5 and the skeleton core 2 are integrally formed and positioned relative to the open side of the yoke frame 1. A pair of conductive elements 6, which can be conductive iron nails, are also provided on the lower end of the first core plate portion 5. A connector 7 is also installed on the lower end of the yoke frame 1, and the connector 7 has... The insertion cavity 8 is used to install the wire harness assembly, and one end of each conductive element 6 extends into the insertion cavity 8 to form a conductive connection with the wire harness assembly. In the above structure, by setting a first core plate portion 5 at a corresponding position of the skeleton core 2 and setting conductive elements 6 on the first core plate portion 5, and by setting a insertion seat 7, and by setting one end of each conductive element 6 after fixed installation to extend into the insertion cavity of the insertion seat 7, the above structure allows the coil and the wire harness assembly to adopt a separate structure, and allows the wire harness assembly to be inserted into the insertion cavity 8 to form a contact connection with the conductive element 6. The coil can also be wound on the skeleton core 2 by an automatic winding machine, realizing automation. After winding, only the two ends of the coil need to be connected to the corresponding conductive elements 6 respectively. The overall structure design is reasonable and the production efficiency will be higher.

[0031] In this embodiment, a pair of connecting protrusions 9 are provided on the lower side of the first core plate portion 5. The conductive element 6 is inserted into the corresponding connecting protrusion 9. In the above structure, by providing connecting protrusions 9 for installing the conductive element 6 on the first core plate portion 5, the installation stability of the conductive element 6 is higher, the cooperation with the wire harness assembly is more stable, and the structural design is more reasonable. More specifically, a limiting plate is provided at the bottom of the plug-in 7. The limiting plate abuts against the first core plate portion 5 so that there is space between the plug-in and the connecting protrusion after installation. The two ends of the coil are welded to the conductive element 6 within the space. Therefore, the use of a plug-in 7 with a limiting plate can ensure the safety of use.

[0032] In this example, the outer walls at both ends of the skeleton core 2 are respectively provided with a second core plate portion 10 and a third core plate portion 11. The second core plate portion 10 and the third core plate portion 11 abut against the corresponding inner walls of the magnetic yoke frame 1, and the first core plate portion 5 is formed on the corresponding side wall of the third core plate portion 11. By setting the second core plate portion 10 and the third core plate portion 11, the fit stability between the skeleton core 2 and the magnetic yoke frame 1 is higher and the use is more reasonable. Furthermore, the first core plate portion 5 is set on the third core plate portion 11, which makes the structure of the skeleton core 2 more reasonable, and the first core plate portion 5 has higher strength and is safer to use. More specifically, the third core plate portion 11 has the first core plate portion 5 on the open side relative to the magnetic yoke frame 1.

[0033] In this embodiment, two mounting protrusions 12 are also formed on the lower side of the magnetic yoke frame 1. The mounting protrusions 12 are arranged on both sides opposite to the first core plate portion 5. The mounting protrusions 12 are locked with the corresponding hooks on the plug-in seat 7. In the above structure, by using the mounting protrusions 12 and the hooks to fix them together, the installation and disassembly of the plug-in seat 7 is more convenient, and the structural design is simple and reasonable.

[0034] In this embodiment, the upper and lower axial centers of the magnetic yoke frame 1 are respectively provided with a first mounting hole 13 and a second mounting hole 14. The upper end of the stationary iron core 3 is provided with a first mounting protrusion 15, which is fastened to the first mounting hole 13. The lower end of the skeleton core 2 is provided with a second mounting protrusion 16, which is fastened to the second mounting hole 14. In the above structure, the position of the stationary iron core 3 is effectively limited by the cooperation of the first mounting hole 13 and the first mounting protrusion 15, and the position of the skeleton core 2 is effectively limited by the cooperation of the second mounting hole 14 and the second mounting protrusion 16, making the use safer and the fixing method simple and reasonable.

[0035] In this embodiment, the moving iron core assembly 4 includes a moving iron core 17, a core rod 18, and an elastic element 19. The moving iron core 17 has a mounting ring 20 and a connecting hole 21 at both ends. The mounting ring 20 extends beyond the lower end of the magnetic yoke frame 1. The upper end of the core rod 18 extends from inside the stationary iron core 3 to the upper end of the magnetic yoke frame 1. The lower end of the core rod 18 has a insertion part 22, which is fixed to the insertion hole on the connecting hole 21. The elastic element 19 is a compression spring, located between the mounting ring 20 and the lower end of the magnetic yoke frame 1. In this structure, the mounting ring 20 is used to limit the position of the elastic element 19, unlike the prior art which requires an additional retaining ring to limit the elastic element 19. In comparison, this structure is simpler. With the installation ring 20, when the electromagnet is energized, the moving iron core 17 is designed to move a predetermined distance toward the stationary iron core 3, causing the elastic element 19 to be compressed. Therefore, when the electromagnet is de-energized, the moving iron core 17 is reset by the elastic potential energy of the elastic element 19. In addition, the connecting hole 21 is formed with a socket. One end of the core rod 18 extends from the stationary iron core 3 to the outside of the magnetic yoke frame 1, and the other end of the core rod 18 is formed with a fixing part 22 that is inserted into the socket. The fixing part 22 and the socket make the core rod 18 and the moving iron core 19 integrally connected. Thus, the movement of the moving iron core 17 drives the movement of the core rod 18 to achieve the purpose of controlling the external electrical switch.

[0036] In this embodiment, the outer peripheral wall of the connecting hole 21 is set as a first conical surface 23, and the inner peripheral wall of the clearance cavity of the stationary iron core 3 is set as a second conical surface 24. The first conical surface 23 and the second conical surface 24 have the same taper and a gap is left between them. In the above structure, by using the first conical surface 23 and the second conical surface 24 and leaving a gap between the first conical surface 23 and the second conical surface 24, the cooperation effect between the moving iron core 17 and the stationary iron core 3 will be better than that of the prior art which uses a vertical surface.

[0037] In this embodiment, a limiting lock 25 is fixed at the upper end of the core rod 18, and a limiting protrusion 26 is provided at the lower end of the magnetic yoke frame 1. The limiting protrusion 26 is arranged circumferentially and limits the elastic member 19. In the above structure, the setting of the limiting lock 25 allows the moving iron core 17 to move a predetermined distance away from the stationary iron core 3 when it is driven to reset by the elastic member 19, which is more reasonable. The setting of the limiting protrusion 26 can limit the elastic member 19 circumferentially, making it less prone to twisting and deformation when compressed.

[0038] In this embodiment, the magnetic yoke frame 1 includes a retainer 27 and a sealing plate 28. The retainer 27 has a U-shaped structure, and the sealing plate 28 is fixed to the opening of the retainer 27. More specifically, mounting notches 29 are formed at the bottom of both ends of the retainer 27, and mounting protrusions 30 are formed on both sides of the sealing plate 28. The mounting protrusions 30 are fixed to the mounting notches 29 and can be fixed by welding. In the above structure, the magnetic yoke frame 1 adopts an assembly structure of retainer 27 and sealing plate 28, which facilitates the installation of each component. At the same time, the sealing plate 28 and retainer 27 effectively limit the position through the mounting protrusions 30 and mounting notches 29. The structural design is simple and reasonable.

[0039] In this embodiment, a first connecting part 31 and a second connecting part 32 are provided on the left and right sides of one side of the retainer 27. In the above structure, by providing the first connecting part 31 and the second connecting part 32, it is convenient for the user to fix the magnetic yoke frame 1 through the external connector. More specifically, assembly holes or assembly slots can be provided in the first connecting part 31 and the second connecting part 32 to achieve fixation with the external connector.

[0040] In this embodiment, the mounting protrusion 12, the second mounting through hole 14, and the limiting protrusion 26 are all formed on the sealing plate 28.

[0041] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications or substitutions should be considered within the protection scope of the present invention.

Claims

1. A novel electromagnet, comprising a yoke frame (1), a skeleton core (2), a stationary iron core (3), and a moving iron core assembly (4), wherein the yoke frame (1) is open at both ends, the skeleton core (2) is installed inside the yoke frame (1) and a coil is wound around its outer wall, the stationary iron core (3) is fixed relative to the upper end of the inner cavity of the skeleton core (2), and the moving iron core assembly (4) passes through the yoke frame (1) and the skeleton core (2) and is movably disposed relative to the stationary iron core (3), wherein the moving iron core assembly (4) is configured to move a predetermined distance, characterized in that: The lower peripheral wall of the skeleton core (2) is provided with a first core plate (5), which is disposed relative to the open side of the magnetic yoke frame (1). The lower end of the first core plate (5) is also provided with a pair of conductive elements (6). The lower end of the magnetic yoke frame (1) is also provided with a plug-in socket (7). The plug-in socket (7) is provided with a plug-in cavity (8). The plug-in cavity (8) is used to install the wire harness assembly. One end of each conductive element (6) extends into the plug-in cavity (8) to form a conductive connection with the wire harness assembly.

2. The novel electromagnet according to claim 1, characterized in that: The lower side of the first core plate (5) is also provided with a pair of connecting protrusions (9), and the conductive element (6) is inserted into the corresponding connecting protrusion (9).

3. A novel electromagnet according to claim 1 or 2, characterized in that: Therefore, the outer walls of both ends of the skeleton core (2) are respectively provided with a second core plate part (10) and a third core plate part (11). The second core plate part (10) and the third core plate part (11) abut against the corresponding inner wall of the magnetic yoke frame (1), and the first core plate part (5) is formed on the corresponding side wall of the third core plate part (11).

4. A novel electromagnet according to claim 3, characterized in that: Two mounting protrusions (12) are also formed on the lower side of the magnetic yoke frame (1). The mounting protrusions (12) are arranged on both sides opposite to the first core plate (5). The mounting protrusions (12) are locked with the corresponding hooks on the plug-in seat (7).

5. A novel electromagnet according to claim 1, characterized in that: The magnetic yoke frame (1) is provided with a first mounting hole (13) and a second mounting hole (14) at the axial center of the upper and lower ends, respectively. The upper end of the stationary iron core (3) is provided with a first mounting protrusion (15), which is fastened to the first mounting hole (13). The lower end of the skeleton core (2) is provided with a second mounting protrusion (16), which is fastened to the second mounting hole (14).

6. A novel electromagnet according to claim 1, characterized in that: The moving iron core assembly (4) includes a moving iron core (17), a core rod (18), and an elastic element (19). The moving iron core (17) has a mounting ring edge (20) and a connecting hole (21) at both ends. The mounting ring edge (20) extends to the lower end of the magnetic yoke frame (1). The upper end of the core rod (18) extends from the stationary iron core (3) to the upper end of the magnetic yoke frame (1). The lower end of the core rod (18) has a insertion part (22). The insertion part (22) is fixed to the insertion hole on the connecting hole (21). The elastic element (19) is located between the mounting ring edge (20) and the lower end of the magnetic yoke frame (1).

7. A novel electromagnet according to claim 6, characterized in that: The outer peripheral wall of the connecting hole (21) is set as a first conical surface (23), and the inner peripheral wall of the clearance cavity of the stationary iron core (3) is set as a second conical surface (24). The first conical surface (23) and the second conical surface (24) have the same taper and a gap is left between them.

8. A novel electromagnet according to claim 6, characterized in that: The upper end of the core rod (18) is also fixed with a limiting lock (25), and the lower end of the magnetic yoke frame (1) is also provided with a limiting protrusion (26), and the limiting protrusion (26) is arranged circumferentially and forms a limit on the elastic member (19).

9. A novel electromagnet according to claim 1, characterized in that: The magnetic yoke frame (1) includes a retainer (27) and a sealing plate (28). The bottom of both sides of the retainer (27) is also formed with mounting notches (29). Mounting protrusions (30) are formed on both sides of the sealing plate (28). The mounting protrusions (30) are fixed to the mounting notches (29). A first connecting part (31) and a second connecting part (32) are also provided on the left and right sides of one side of the retainer (27).

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