Packaging and fixing structure of cobalt-based ferromagnetic core

Abstract

The utility model belongs to the technical field of cobalt-based ferromagnetic cores, and particularly relates to a packaging and fixing structure of a cobalt-based ferromagnetic core, which comprises a shell. According to the cobalt-based ferromagnetic core, the cobalt-based ferromagnetic core body is placed in the containing groove, the trapezoidal rods on the top cover are inserted into the cavity through the inserting holes, the trapezoidal rods make contact with the balls and extrude the balls, and the balls drive the clamping pins to slide on the positioning rods and compress the first springs; when the clamping groove and the clamping pin are aligned, the first spring in a compressed state resets to drive the clamping pin to be clamped with the clamping groove, and the top cover is fixed on the shell to package the cobalt-based ferromagnetic core body; the cobalt-based ferromagnetic core body drives the limiting ring to drive the guide rod to slide on the vertical rod and compress the second spring, and the limiting ring is driven to reset through the guide rod under the action of the elasticity of the second spring, so that the limiting ring tightly abuts against the cobalt-based ferromagnetic core body, the stability of the cobalt-based ferromagnetic core body is ensured, and the service life of the cobalt-based ferromagnetic core body is prolonged. And the phenomenon that the cobalt-based ferromagnetic core body falls off is avoided.

Description

Technical Field

[0001] This utility model relates to the field of cobalt-based ferromagnetic core technology, specifically to a packaging and fixing structure for a cobalt-based ferromagnetic core. Background Technology

[0002] Cobalt-based ferromagnetic cores are widely used in critical fields such as high-frequency transformers, electromagnetic relays, and aerospace equipment due to their high saturation magnetic induction, temperature stability, and excellent soft magnetic properties. In these applications, the core needs to be reliably fixed to the external magnetic ring shell through an encapsulation structure, while also meeting the sealing requirements under harsh operating conditions such as long-term vibration and temperature changes.

[0003] Current cobalt-based ferromagnetic core packaging and fixing structures involve placing the cobalt-based ferromagnetic core into the inner cavity of a magnetic ring shell, coating the core surface with adhesive, and curing it to initially fix it to the inner wall of the shell. Adhesive is then applied to the edge of a mounting cover at the top of the magnetic ring shell to bond the cover to the shell, forming a closed structure. However, relying on a single adhesive for fixing makes the adhesive layer prone to brittle fracture or fatigue failure under severe vibration or impact loads. This leads to the mounting cover separating from the shell, causing the core to detach from the inner cavity, resulting in abnormal equipment function or even damage. Therefore, we propose a cobalt-based ferromagnetic core packaging and fixing structure to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a packaging and fixing structure for a cobalt-based ferromagnetic core, solving the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0008] A packaging and fixing structure for a cobalt-based ferromagnetic core includes a housing with a placement groove. The placement groove contains a cobalt-based ferromagnetic core body in movable contact. The housing has two cavities. A positioning rod is welded to the inner wall of one side of each cavity. A locking pin is slidably connected to the positioning rod. A first spring is welded between one end of the locking pin and the inner wall of the corresponding cavity. A ball bearing is embedded at the other end of the locking pin. A rectangular hole is formed on one side of the inner wall of each cavity. A moving block is slidably connected to the rectangular hole. The moving block is connected to the corresponding... A hinge rod is rotatably connected between the locking pins. A top cover is fitted onto the top of the outer shell. Two trapezoidal rods are welded to the bottom of the top cover. A slot is opened on one side of each trapezoidal rod, and the slot engages with the corresponding locking pin. Multiple vertical rods are fixedly connected to the inner top wall of the top cover. Guide rods are slidably connected to the vertical rods. A second spring is fixedly connected between the top of the guide rod and the inner top wall of the top cover. The bottom ends of the multiple guide rods are fixedly connected to the same limiting ring. The bottom of the limiting ring is in movable contact with the top of the cobalt-based ferromagnetic core body.

[0009] Furthermore, a insertion hole is provided on the top inner wall of the cavity, and the inner wall of the insertion hole is in movable contact with the outer side of the corresponding trapezoidal rod.

[0010] Furthermore, a limiting rod is fixedly connected to the bottom inner wall of the cavity, and a round rod is slidably connected to the limiting rod. The top end of the round rod is fixedly connected to the bottom of the corresponding moving block.

[0011] Furthermore, a third spring is welded between the bottom end of the round rod and the bottom inner wall of the corresponding cavity, and the third spring is movably sleeved on the corresponding limiting rod.

[0012] Furthermore, a circular groove is provided on the locking pin, and the locking pin is slidably connected to the corresponding positioning rod through the circular groove.

[0013] Furthermore, the first spring is movably sleeved on the corresponding positioning rod, and the second spring is movably sleeved on the corresponding vertical rod.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a packaging and fixing structure for a cobalt-based ferromagnetic core, which has the following advantages:

[0016] This invention involves placing the cobalt-based ferromagnetic core body into the placement slot of the outer shell, and then inserting the trapezoidal rod on the top cover into the cavity through the insertion hole. The trapezoidal rod contacts and compresses the corresponding ball bearing. Under the action of the compressive force, the ball bearing drives the corresponding locking pin to slide on the positioning rod and compress the first spring. When the locking slot aligns with the corresponding locking pin, the first spring, which is in a compressed state, returns to its original position. The first spring drives the corresponding locking pin to engage with the locking slot, thereby fixing the top cover to the outer shell and encapsulating the cobalt-based ferromagnetic core body. When the cobalt-based ferromagnetic core body moves, it drives the limiting ring to slide on the guide rod and compress the second spring. Under the action of the second spring's own elastic force, the second spring drives the limiting ring to return to its original position through the guide rod, so that the limiting ring tightly resists the cobalt-based ferromagnetic core body, further ensuring the stability of the cobalt-based ferromagnetic core body and preventing it from falling off. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a partial three-dimensional structural diagram of the present invention;

[0019] Figure 3 This is a three-dimensional structural diagram of the connection between the top cover and the limiting ring of this utility model;

[0020] Figure 4 This utility model Figure 3 Schematic diagram of the three-dimensional structure after the middle limiting ring is hidden;

[0021] Figure 5 This is a three-dimensional structural diagram of the outer shell and top cover of this utility model cut out;

[0022] Figure 6 This is a schematic diagram of the three-dimensional structure of the outer shell of this utility model.

[0023] In the diagram: 1. Outer shell; 2. Placement slot; 3. Cobalt-based ferromagnetic core body; 4. Cavity; 5. Positioning rod; 6. Locking pin; 7. First spring; 8. Ball bearing; 9. Rectangular hole; 10. Moving block; 11. Hinge rod; 12. Top cover; 13. Trapezoidal rod; 14. Slot; 15. Vertical rod; 16. Guide rod; 17. Second spring; 18. Limiting ring; 19. Insertion hole; 20. Limiting rod; 21. Round rod; 22. Third spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example

[0026] like Figure 1-6 As shown, an embodiment of this utility model discloses a packaging and fixing structure for a cobalt-based ferromagnetic core, including a shell 1. A placement groove 2 is provided on the shell 1, and a cobalt-based ferromagnetic core body 3 is movably contacted within the placement groove 2. Two cavities 4 are provided on the shell 1. A positioning rod 5 is welded to one inner wall of each cavity 4, and a locking pin 6 is slidably connected to the positioning rod 5. A first spring 7 is welded between the end of the locking pin 6 and the corresponding inner wall of one side of the cavity 4. A ball bearing 8 is embedded at the other end of the locking pin 6. A rectangular hole 9 is provided on one inner wall of each cavity 4, and a moving block 10 is slidably connected to the rectangular hole 9. A hinge rod 11 is rotatably connected between pin 0 and the corresponding locking pin 6. A top cover 12 is fitted onto the top of the outer shell 1. Two trapezoidal rods 13 are welded to the bottom of the top cover 12. A slot 14 is opened on one side of the trapezoidal rod 13, and the slot 14 is engaged with the corresponding locking pin 6. Multiple vertical rods 15 are fixedly connected to the inner top wall of the top of the top cover 12. Guide rods 16 are slidably connected to the vertical rods 15. A second spring 17 is fixedly connected between the top of the guide rod 16 and the inner top wall of the top of the top cover 12. The bottom of the multiple guide rods 16 is fixedly connected to the same limiting ring 18. The bottom of the limiting ring 18 is connected to the cobalt-based ferromagnetic core. The top of the main body 3 makes a movable contact, placing the cobalt-based ferromagnetic core 3 into the placement slot 2 of the outer shell 1. The trapezoidal rod 13 on the top cover 12 is then inserted into the cavity 4 through the insertion hole 19. The trapezoidal rod 13 contacts and presses against the corresponding ball bearing 8. Under the pressure, the ball bearing 8 drives the corresponding locking pin 6 to slide on the positioning rod 5 and compress the first spring 7. When the slot 14 aligns with the corresponding locking pin 6, the first spring 7, which is in a compressed state, returns to its original position. The first spring 7 then drives the corresponding locking pin 6 to engage with the slot 14, thereby fixing the top cover 12 onto the outer shell 1 for cobalt-based ferromagnetic core. The ferromagnetic core body 3 is encapsulated, and the limiting ring 18 on the top cover 12 resists the cobalt-based ferromagnetic core body 3. When the cobalt-based ferromagnetic core body 3 moves, the cobalt-based ferromagnetic core body 3 drives the limiting ring 18 to slide the guide rod 16 on the vertical rod 15 and compress the second spring 17. Under the action of the elastic force of the second spring 17, the second spring 17 drives the limiting ring 18 to reset through the guide rod 16, so that the limiting ring 18 tightly resists the cobalt-based ferromagnetic core body 3, further ensuring the stability of the cobalt-based ferromagnetic core body 3, so that the cobalt-based ferromagnetic core body 3 will not fall off.

[0027] In some embodiments, a plug hole 19 is provided on the top inner wall of the cavity 4, and the inner wall of the plug hole 19 is in movable contact with the outer side of the corresponding trapezoidal rod 13.

[0028] In some embodiments, a limiting rod 20 is fixedly connected to the bottom inner wall of the cavity 4, and a round rod 21 is slidably connected to the limiting rod 20. The top end of the round rod 21 is fixedly connected to the bottom of the corresponding moving block 10. The limiting rod 20 serves to limit movement.

[0029] In some embodiments, a third spring 22 is welded between the bottom end of the round rod 21 and the bottom inner wall of the corresponding cavity 4, and the third spring 22 is movably sleeved on the corresponding limiting rod 20.

[0030] In some embodiments, the locking pin 6 has a circular groove, and the locking pin 6 is slidably connected to the corresponding positioning rod 5 through the circular groove. The locking pin 6 serves to fix the pin in place.

[0031] In some embodiments, the first spring 7 is movably sleeved on the corresponding positioning rod 5, and the second spring 17 is movably sleeved on the corresponding vertical rod 15.

[0032] In operation, the cobalt-based ferromagnetic core body 3, top cover 12, and outer shell 1 are separated during use. During encapsulation, the cobalt-based ferromagnetic core body 3 is placed into the placement slot 2 of the outer shell 1. The trapezoidal rod 13 on the top cover 12 is then inserted into the cavity 4 through the insertion hole 19. The trapezoidal rod 13 contacts and presses against the corresponding ball bearing 8. Under the pressure, the ball bearing 8 drives the corresponding locking pin 6 to slide on the positioning rod 5 and compress the first spring 7. When the slot 14 aligns with the corresponding locking pin 6, the first spring 7, which is in a compressed state, returns to its original position. The first spring 7 then drives the corresponding locking pin 6 to engage with the slot 14, thereby fixing the top cover 12 onto the outer shell 1 and encapsulating the cobalt-based ferromagnetic core body 3. Simultaneously, the limiting ring 18 on the top cover 12 engages with the cobalt-based ferromagnetic core body 3. When the cobalt-based ferromagnetic core body 3 moves, the cobalt-based ferromagnetic core body 3 drives the limiting ring 18 to slide on the guide rod 16 on the vertical rod 15 and compress the second spring 17. Under the action of the elastic force of the second spring 17, the second spring 17 drives the limiting ring 18 to reset through the guide rod 16, so that the limiting ring 18 tightly resists the cobalt-based ferromagnetic core body 3, further ensuring the stability of the cobalt-based ferromagnetic core body 3, so that the cobalt-based ferromagnetic core body 3 will not fall off. When disassembly is required, the moving block 10 is moved. The moving block 10 drives the round rod 21 to slide on the corresponding limiting rod 20 and stretch the third spring 22. The moving block 10 drives the locking pin 6 to move through the corresponding hinge rod 11, so that the locking pin 6 separates from the corresponding locking groove 14, thereby removing the top cover 12.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A package fixing structure of a cobalt-based ferromagnetic core, comprising a housing (1), characterized in that: The outer shell (1) has a placement groove (2) in which a cobalt-based ferromagnetic core body (3) is movably contacted. The outer shell (1) has two cavities (4). A positioning rod (5) is welded to the inner wall of one side of each cavity (4). A locking pin (6) is slidably connected to the positioning rod (5). A first spring (7) is welded between the end of the locking pin (6) and the inner wall of the corresponding cavity (4). A ball bearing (8) is embedded in the other end of the locking pin (6). A rectangular hole (9) is opened on the inner wall of one side of each cavity (4). A moving block (10) is slidably connected to the rectangular hole (9). A hinge rod (11) is rotatably connected between the moving block (10) and the corresponding locking pin (6). The top of the outer shell (1) is fitted with a top cover (12). Two trapezoidal rods (13) are welded to the bottom of the top cover (12). A slot (14) is provided on one side of the trapezoidal rod (13). The slot (14) is engaged with the corresponding pin (6). Multiple vertical rods (15) are fixedly connected to the top inner wall of the top cover (12). A guide rod (16) is slidably connected to the vertical rod (15). A second spring (17) is fixedly connected between the top of the guide rod (16) and the top inner wall of the top cover (12). The bottom of the multiple guide rods (16) is fixedly connected to the same limiting ring (18). The bottom of the limiting ring (18) is in contact with the top of the cobalt-based ferromagnetic core body (3).

2. The structure for packaging and fixing a cobalt-based ferromagnetic core according to claim 1, characterized in that: The cavity (4) has a plug hole (19) on its top inner wall, and the inner wall of the plug hole (19) is in contact with the outer side of the corresponding trapezoidal rod (13).

3. The structure of claim 2, wherein: A limiting rod (20) is fixedly connected to the bottom inner wall of the cavity (4), and a round rod (21) is slidably connected to the limiting rod (20). The top end of the round rod (21) is fixedly connected to the bottom of the corresponding moving block (10).

4. The structure of claim 3, wherein: A third spring (22) is welded between the bottom end of the round rod (21) and the bottom inner wall of the corresponding cavity (4), and the third spring (22) is movably sleeved on the corresponding limiting rod (20).

5. The structure of claim 4, wherein: the first and second portions are formed of a material selected from the group consisting of: a polymer, a plastic, a resin, a rubber, a metal, a ceramic, a glass, a composite material, and a combination thereof. The locking pin (6) has a circular groove, and the locking pin (6) is slidably connected to the corresponding positioning rod (5) through the circular groove.

6. The structure of claim 5, wherein: The first spring (7) is movably sleeved on the corresponding positioning rod (5), and the second spring (17) is movably sleeved on the corresponding vertical rod (15).

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