Soft magnetic ferrite core

Abstract

The utility model provides a soft magnetic ferrite core, and belongs to the technical field of soft magnetic ferrite cores. Comprising a first magnetic core and a third magnetic core, one end of the third magnetic core is provided with a clamping block, the clamping block is a butterfly-shaped clamping block, the overall structure of the clamping block takes the radial direction of the third magnetic core as a reference, the width of the clamping block is gradually reduced from one end to the other end, one end of the first magnetic core is provided with a clamping groove matched with the clamping block in a clamping connection mode, the clamping groove is a butterfly-shaped clamping groove, and when the clamping groove is connected with the clamping block in a clamping mode, the clamping block is clamped. The inner side walls of the two sides of the clamping groove are tightly attached to the outer side walls of the two sides of the clamping block, and meanwhile the axis of the first magnetic core coincides with the axis of the third magnetic core. The first magnetic core and the third magnetic core are mutually connected through mutual matching, clamping and connecting of the clamping grooves and the clamping blocks, meanwhile, the connecting coaxiality of the first magnetic core and the third magnetic core is guaranteed, the first magnetic core and the third magnetic core are tightly connected and attached, the overall magnetic permeability of the magnetic cores is guaranteed, the product inductance value is guaranteed, the structure is simple, and cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of soft ferrite cores, in particular to a soft ferrite core. Background Art

[0002] In recent years, the automotive electronics industry has developed rapidly, and higher requirements have been placed on vehicle-mounted antennas. Therefore, higher requirements have also been placed on the length of magnetic core products used for vehicle-mounted antennas.

[0003] In the prior art, since the core pressing process is limited by the molding pressure of the molding machine and the maximum height of the product that can be molded by the equipment, it is impossible to use the upright molding method to mold the product in one go during the green embryo molding process. Most of the methods are to connect two adjacent cores end to end and glue them together to extend the overall length of the core.

[0004] However, the two connections made by bonding have poor effects, are easy to break, and are not easy to position. Manual proofreading cannot guarantee the overall coaxiality of the core product, affecting product quality. Therefore, the present application provides a soft ferrite core to meet the needs. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a soft ferrite core to solve the problems that the two connections connected by bonding are poor in effect, easy to break, and inconvenient to position, and manual proofreading cannot ensure the overall coaxiality of the core product, thus affecting product quality.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A soft ferrite core comprises a first core and a third core, wherein a card block is provided at one end of the third core, wherein the card block is a butterfly-shaped card block, and the overall structure of the card block is based on the radial direction of the third core, and the width gradually decreases from one end to the other end; a card slot for matching the card block is provided at one end of the first core, wherein the card slot is a butterfly-shaped card slot, and when the card slot is engaged with the card block, the inner side walls of the card slot are tightly fitted with the outer side walls of the card block, and the axes of the first core and the third core coincide with each other.

[0008] Preferably, it also includes a second magnetic core, which is provided with at least one, one end of which is provided with a block that is engaged with the slot on the first magnetic core, and the other end of the second magnetic core is provided with a slot that is engaged with the block on the third magnetic core.

[0009] Preferably, the clamping groove on the second magnetic core and the clamping block on another second magnetic core can cooperate with each other to be connected end to end.

[0010] Preferably, it also includes a limiting member, which includes a long-rod bolt and a nut, and the long-rod bolt and the nut are threadedly connected to each other.

[0011] Preferably, limiting holes are provided on both side walls of the slot, and the two limiting holes are located on the same axis.

[0012] Preferably, the axial cross-section of the limiting hole is T-shaped and is used for installing a limiting member.

[0013] Preferably, the clamping block is provided with a through slot penetrating through both sides, and the through slot is on the same axis as the two limiting holes when the clamping slot and the clamping block are engaged and connected.

[0014] Preferably, the through slot is slidably connected with the long rod bolt.

[0015] Preferably, the first magnetic core, the second magnetic core and the third magnetic core are all cylinders with the same cross-section.

[0016] Compared with the prior art, the utility model has at least the following beneficial effects:

[0017] 1. The first magnetic core and the third magnetic core are connected to each other through the mutual engagement of the card slot and the card block, while ensuring the coaxiality of the connection between the two, and the connection between the first magnetic core and the third magnetic core is tightly fitted, thereby ensuring the overall magnetic permeability of the magnetic core, ensuring the product inductance, simple structure and low cost.

[0018] 2. During the assembly process, align the narrower end of the card block with the wider end of the card slot, and push the card block into the card slot along this direction until the side walls of the two fit together. At this time, the axes of the two magnetic cores that fit together just coincide with each other, making the assembly operation convenient.

[0019] 3. The overall length of the magnetic core is extended by providing a second magnetic core, wherein the second magnetic core can be increased to multiple, and the multiple second magnetic cores are connected end to end between the first magnetic core and the third magnetic core, and the connection and matching method is the same as the first magnetic core and the third magnetic core. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 for Figure 1 Exploded image;

[0023] Figure 3This is a schematic diagram of the second magnetic core structure of the utility model.

[0024] In the figure: 1, first magnetic core; 2, second magnetic core; 3, third magnetic core; 4, slot; 5, block; 6, limit piece; 61, long rod bolt; 62, nut; 7, limit hole; 8, through slot.

[0025] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0026] The following is a detailed description of a soft ferrite core provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0027] like Figure 1-Figure 3 As shown, an embodiment of the utility model provides a soft ferrite core, including a first magnetic core 1 and a third magnetic core 3, a block 5 is provided at one end of the third magnetic core 3, the block 5 is a butterfly-shaped block 5, and the overall structure of the block 5 is based on the radial direction of the third magnetic core 3, and the width gradually decreases from one end to the other end, a slot 4 for matching the block 5 is provided at one end of the first magnetic core 1, and the slot 4 is a butterfly-shaped slot 4, and when connected with the block 5, the inner side walls of the slot 4 are tightly fitted with the outer side walls of the block 5, and at the same time, the axes of the first magnetic core 1 and the third magnetic core 3 coincide.

[0028] The first magnetic core 1 and the third magnetic core 3 are connected to each other by means of the engaging and connecting of the slot 4 on the first magnetic core 1 and the block 5 on the third magnetic core 3, while ensuring the coaxiality of the connection between the two, and the connection between the first magnetic core 1 and the third magnetic core 3 is tightly fitted, thereby ensuring the overall magnetic permeability of the magnetic core and the product inductance, with a simple structure and low cost. During the assembly process, the narrower end of the block 5 is aligned with the wider end of the slot 4, and the block 5 is pushed into the slot 4 along this direction until the side walls of the two fit together. At this time, the axes of the two magnetic cores that fit together just coincide with each other, and the assembly operation is convenient.

[0029] like Figure 1 and Figure 2As shown, it also includes a second magnetic core 2, which is provided with at least one, one end of the second magnetic core 2 is provided with a block 5 that is engaged with the slot 4 on the first magnetic core 1, and the other end of the second magnetic core 2 is provided with a slot 4 that is engaged with the block 5 on the third magnetic core 3; the slot 4 on the second magnetic core 2 and the block 5 on another second magnetic core 2 can be connected end to end with each other.

[0030] The overall length of the magnetic core is extended by adding a second magnetic core 2 between the first magnetic core 1 and the third magnetic core 3, wherein the second magnetic core 2 can be increased to multiple numbers, and the multiple second magnetic cores 2 are connected to each other end to end between the first magnetic core 1 and the third magnetic core 3, and the connection and matching method is the same as that of the first magnetic core 1 and the third magnetic core 3.

[0031] like Figure 2 As shown, it also includes a limit member 6, which includes a long rod bolt 61 and a nut 62, and the long rod bolt 61 and the nut 62 are threadedly connected with each other; limit holes 7 are provided on both side walls of the slot 4, and the two limit holes 7 are on the same axis; the axial cross-section of the limit hole 7 is T-shaped, which is used to install the limit member 6; the block 5 is provided with a through groove 8 running through both sides, and the through groove 8 is on the same axis with the two limit holes 7 when the slot 4 and the block 5 are engaged; the through groove 8 is slidably connected with the long rod bolt 61.

[0032] The limiting member 6 is provided to limit the engagement connection between the clamping slot 4 and the clamping block 5 in the radial direction, thereby preventing the clamping slot 4 and the clamping block 5 from relative slipping during use, thereby preventing the coaxiality of the magnetic core from being affected.

[0033] The first magnetic core 1 , the second magnetic core 2 , and the third magnetic core 3 are all cylinders with the same cross-section, so as to increase the winding area.

[0034] In summary, compared with the prior art, the present invention has the following beneficial effects: the first magnetic core 1 and the third magnetic core 3 are connected to each other through the mutual engagement and connection of the card slot 4 and the card block 5, while ensuring the coaxiality of the connection between the two, and the connection between the first magnetic core 1 and the third magnetic core 3 is tightly fitted, thereby ensuring the overall magnetic permeability of the magnetic core, ensuring the product inductance, and having a simple structure and low cost; during the assembly process, the narrower end of the card block 5 is opposite to the wider end of the card slot 4, and the card block 5 is pushed into the interior of the card slot 4 along this direction until the side walls of the two fit each other, at which time the axes of the two magnetic cores that are engaged with each other just coincide with each other, and the assembly operation is convenient; the overall length of the magnetic core is extended by providing a second magnetic core 2, wherein the second magnetic core 2 can be increased to a plurality of second magnetic cores, and the plurality of second magnetic cores 2 are connected head to tail to each other between the first magnetic core 1 and the third magnetic core 3, and the connection and engagement method is the same as that of the first magnetic core 1 and the third magnetic core 3.

[0035] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A soft ferrite core, characterized in that: include: A first magnetic core (1) and a third magnetic core (3), wherein a clamping block (5) is provided at one end of the third magnetic core (3), wherein the clamping block (5) is a butterfly-shaped clamping block (5), and the overall structure of the clamping block (5) is based on the radial direction of the third magnetic core (3), and the width thereof gradually decreases from one end to the other end; a clamping groove (4) is provided at one end of the first magnetic core (1) for clamping connection with the clamping block (5), wherein the clamping groove (4) is a butterfly-shaped clamping groove (4), and when clamping connection is made with the clamping block (5), the inner side walls of the clamping groove (4) and the outer side walls of the clamping block (5) are tightly fitted at both sides, and the axes of the first magnetic core (1) and the third magnetic core (3) are simultaneously overlapped.

2. The soft ferrite core according to claim 1, characterized in that: It also comprises a second magnetic core (2), the second magnetic core (2) being provided with at least one, one end of the second magnetic core (2) being provided with a clamping block (5) that is engaged and connected with the clamping groove (4) on the first magnetic core (1), and the other end of the second magnetic core (2) being provided with a clamping groove (4) that is engaged and connected with the clamping block (5) on the third magnetic core (3).

3. The soft ferrite core according to claim 2, characterized in that: The clamping groove (4) on the second magnetic core (2) and the clamping block (5) on another second magnetic core (2) can cooperate with each other to be connected end to end.

4. The soft ferrite core according to claim 1, characterized in that: It also comprises a limiting member (6), wherein the limiting member (6) comprises a long-rod bolt (61) and a nut (62), and the long-rod bolt (61) and the nut (62) are threadedly connected to each other in cooperation with each other.

5. The soft ferrite core according to claim 1, characterized in that: Limiting holes (7) are provided on both side walls of the clamping slot (4), and the two limiting holes (7) are located on the same axis.

6. The soft ferrite core according to claim 5, characterized in that: The limiting hole (7) has an axial cross-section in a T-shape and is used for installing the limiting member (6).

7. The soft ferrite core according to claim 6, characterized in that: The clamping block (5) is provided with a through slot (8) penetrating through both sides, and the through slot (8) is located on the same axis as the two limiting holes (7) when the clamping slot (4) and the clamping block (5) are engaged and connected.

8. The soft ferrite core according to claim 7, characterized in that: The through slot (8) is slidably connected with the long rod bolt (61).

9. The soft ferrite core according to claim 1, characterized in that: The first magnetic core (1), the second magnetic core (2) and the third magnetic core (3) are all cylinders with the same cross-section.

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