Magnetic core installation protection structure

Abstract

The utility model relates to a magnetic core installation protection structure, and relates to the field of magnetic core protection. The fixed insert comprises a first fixed insert and a second fixed insert, and the magnetic core is positioned between the first fixed insert and the second fixed insert; a limiting protrusion is arranged on the side, close to the magnetic core, of the first fixing insert and matched with the opening in an inserted mode, and a pressing block is arranged on the second fixing insert. And when the injection molding machine is closed, the pressing block can push the second fixed insert, so that the magnetic core is positioned and mounted between the first fixed insert and the second fixed insert. The magnetic core installation protection structure has the effect that the magnetic core installation protection structure can be suitable for magnetic cores of different sizes.

Description

Technical Field

[0001] The present application relates to the field of magnetic core protection, and in particular to a magnetic core installation protection structure. Background Art

[0002] The magnetic core on the injection molding machine is usually ring-shaped, and there is an opening on the mold magnetic core. In order to ensure the safety of the embedded installation of the mold magnetic core, the middle slot of the magnetic core is generally used for positioning, and the upper and lower inserts are pressed together to fix it.

[0003] However, in the prior art, the size of the magnetic core is prone to certain tolerance values ​​during the production of the mold core, and the pressing of the upper and lower inserts is prone to cause abnormalities such as crushing or burrs on the magnetic core, making product production unstable and the product waste rate high. Utility Model Content

[0004] In order to make the magnetic core installation protection structure applicable to magnetic cores of different sizes, the present application provides a magnetic core installation protection structure.

[0005] A magnetic core installation protection structure provided in this application adopts the following technical solution:

[0006] A magnetic core installation and protection structure includes a first fixed insert and a second fixed insert, the magnetic core is located between the first fixed insert and the second fixed insert; a limiting protrusion is provided on the side of the first fixed insert close to the magnetic core, the limiting protrusion is plug-fitted with an opening, and a pressure block is provided on the second fixed insert; when the injection molding machine is closing the mold, the pressure block can push the second fixed insert.

[0007] By adopting the above technical solution, the magnetic core can be installed on the first fixed insert by utilizing the limiting protrusion that cooperates with the opening plug-in; then through the mold closing action of the injection molding machine, the pressing block can push the second fixed insert so that the magnetic core can be positioned and installed between the first fixed insert and the second insert. The structure is simple and can be applied to the installation of magnetic cores of more sizes and is not limited by the direction of the magnetic core opening.

[0008] Preferably, a groove is formed at the end of the second fixed insert away from the magnetic core, and an elastic member is arranged in the groove, one end of the elastic member abuts against the bottom of the groove, and the other end of the elastic member is used to abut against the side of the pressure block close to the second fixed insert.

[0009] By adopting the above technical solution and utilizing the elastic member, the magnetic core can be pressed without exceeding the pressure it can withstand, causing deformation or cracking, thereby protecting the magnetic core.

[0010] Preferably, it further comprises a plurality of third fixing inserts. When the magnetic core is mounted on the first fixing insert, the plurality of third fixing inserts are respectively arranged on opposite sides of the magnetic core where the opening side is provided, and the magnetic core is clamped between the plurality of third fixing inserts.

[0011] By adopting the above technical solution, the magnetic core can be further restricted by using a plurality of third fixing inserts, thereby reducing the movement of the magnetic core after positioning and installation.

[0012] Preferably, the plurality of third fixing inserts are also respectively arranged on two opposite sides of the limiting protrusion.

[0013] By adopting the above technical solution, the movement of the magnetic core after positioning and installation is further reduced.

[0014] Preferably, a guiding slope is provided at an end of the third fixing insert close to the magnetic core, and an end of the guiding slope close to the magnetic core is inclined in a direction away from the second fixing insert.

[0015] By adopting the above technical solution, the magnetic core can be more conveniently arranged between the four third fixing inserts through the guiding slope; and if the size of the magnetic core is slightly larger, the positioning installation can be achieved by spreading the four third fixing inserts apart and causing slight deformation of the third fixing inserts.

[0016] Preferably, the end surface edges of the limiting protrusion close to and away from the first fixing insert are designed with arc transition.

[0017] By adopting the above technical solution, the opening of the magnetic core can be more conveniently and smoothly set on the limiting protrusion.

[0018] In summary, the present application includes at least one of the following beneficial technical effects: before mold closing, the magnetic core can be installed on the first fixed insert through the plug-in fit of the opening and the limiting protrusion, and can be clamped between multiple third fixed inserts at the same time; after mold closing, the second fixed insert can be close to the first fixed insert under the action of the pressure block, thereby completing the positioning and installation of the magnetic core. The above structure can be applied to the installation of magnetic cores of more sizes, and is not limited by the direction of the magnetic core opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0020] Figure 2 It is a schematic diagram of the explosion structure of an embodiment of the present application;

[0021] Figure 3 It is a schematic diagram of the structure of the first fixed insert and the third fixed insert in the embodiment of the present application.

[0022] Figure numerals: 1, magnetic core; 11, opening; 2, first fixed insert; 21, snap-on protrusion; 3, second fixed insert; 31, groove; 4, pressure block; 5, elastic member; 6, third fixed insert; 61, guide ramp. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-3 This application is described in further detail.

[0024] An embodiment of the present application discloses a magnetic core installation protection structure.

[0025] Reference Figure 1 , Figure 2 and Figure 3 A magnetic core installation and protection structure includes a first fixed insert 2 and a second fixed insert 3, and a magnetic core 1 is located between the first fixed insert 2 and the second fixed insert 3. The mold magnetic core 1 is usually annular, and an opening 11 is opened on the mold magnetic core 1. A limiting protrusion is provided on the first fixed insert 2, and the opening 11 and the limiting protrusion are snap-fitted together, so that the magnetic core 1 can be fixed on the first fixed insert 2. A pressing block 4 is provided at one end of the second fixed insert 3 away from the magnetic core 1. By adjusting the position of the pressing block 4, the magnetic core 1 can be stably set between the first fixed insert 2 and the second fixed insert 3, so as to avoid the shaking of the magnetic core 1 during the injection molding process of the injection molding machine as much as possible; at the same time, it can adapt to magnetic cores 1 of various sizes and is not limited by the direction of the opening 11 of the magnetic core 1.

[0026] The first fixed insert 2 is in the shape of a rectangular parallelepiped as a whole, and the limiting protrusion is located on the end face in the length direction of the first fixed insert 2. The limiting protrusion is in the shape of a rectangular parallelepiped as a whole, and the length direction of the limiting protrusion is perpendicular to the length direction of the first fixed insert 2. The edge of the end face of the limiting protrusion away from the first fixed insert 2 adopts an arc transition design, so that the opening 11 of the magnetic core 1 can be more conveniently and smoothly set on the limiting protrusion.

[0027] The second fixed insert 3 is cylindrical in shape as a whole, and the length direction of the second fixed insert 3 is parallel to the length direction of the first fixed insert 2. The pressing block 4 is rectangular in shape as a whole, and the length direction surface of the pressing block 4 is perpendicular to the axis of the second fixed insert 3. When the injection molding machine is closing the mold, the pressing block 4 can push the second fixed insert 3 during the closing process, so that the second fixed insert 3 is close to the first fixed insert 2, so that the magnetic core 1 can be positioned between the first fixed insert 2 and the second fixed insert 3. Preferably, the axis of the second fixed insert 3 and the center line of the first fixed insert 2 parallel to its own length direction are located on the same straight line, so that the force applied to the magnetic core 1 can be more uniform and it is not easy to cause damage to the magnetic core 1.

[0028] In addition, an elastic member 5 is provided between the pressing block 4 and the second fixed insert 3. A groove 31 is provided at one end of the second fixed insert 3 close to the pressing block 4, and the groove 31 is grooved in the direction close to the pressing block 4. One end of the elastic member 5 abuts against the pressing block 4, and the other end of the elastic member 5 abuts against the bottom of the groove 31. When the injection molding machine is molded, the elastic member 5 begins to compress, thereby applying a reverse force to the pressing block 4 by utilizing the elastic deformation of the elastic member 5, so that the magnetic core 1 will not be compressed beyond the bearing pressure to cause deformation or cracking, etc., thereby protecting the magnetic core 1.

[0029] In order to further reduce the movement of the magnetic core 1 after positioning and installation, the present embodiment further includes a third fixing insert 6. In the present embodiment, four third fixing inserts 6 are provided, and the four third fixing inserts 6 are respectively provided near the corners of the first fixing insert 2. The third fixing insert 6 is in the shape of a rectangular column as a whole, and the length direction of the third fixing insert 6 is parallel to the length direction of the first fixing insert 2. When the magnetic core 1 is installed on the first fixing insert 2, the side of the magnetic core 1 provided with the opening 11 can be clamped between the four third fixing inserts 6. A guide slope 61 is provided at one end of the third fixing insert 6 close to the magnetic core 1, and the side of the guide slope 61 close to the magnetic core 1 is inclined downward away from the magnetic core 1, so that the magnetic core 1 can be more conveniently set between the four third fixing inserts 6 through the guide slope 61; and if the size of the magnetic core 1 is slightly larger, the magnetic core 1 can slightly deform the third fixing insert 6 by four propping up the third fixing insert 6, so as to achieve the positioning and installation of the magnetic core 1.

[0030] The implementation principle of a magnetic core installation protection structure in an embodiment of the present application is: first, the opening 11 of the magnetic core 1 is oriented toward the first fixed insert 2, and then the magnetic core 1 is fixed on the first fixed insert 2 and clamped between multiple third fixed inserts 6, and finally the injection molding machine is closed to allow the second fixed insert 3 to be close to the first fixed insert 2 under the action of the pressing block 4, thereby completing the positioning and installation of the magnetic core 1; at the same time, the above structure can be suitable for the installation of magnetic cores 1 of more sizes, and is not limited by the direction of the opening 11 of the magnetic core 1, the processing cost is low, and it can be designed simultaneously with other protection structures without affecting each other.

[0031] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A magnetic core installation protection structure, characterized in that: The invention comprises a first fixed insert (2) and a second fixed insert (3), wherein the magnetic core (1) is located between the first fixed insert (2) and the second fixed insert (3); a limiting protrusion is arranged on a side of the first fixed insert (2) close to the magnetic core (1), the limiting protrusion and the opening (11) are plug-fitted together, and a pressing block (4) is arranged on the second fixed insert (3); when the injection molding machine is closing the mold, the pressing block (4) can push the second fixed insert (3).

2. A magnetic core installation protection structure according to claim 1, characterized in that: A groove (31) is provided at the end of the second fixed insert (3) away from the magnetic core (1), and an elastic member (5) is arranged in the groove (31), one end of the elastic member (5) is abutted against the bottom of the groove (31), and the other end of the elastic member (5) is used to abut against the side surface of the pressing block (4) close to the second fixed insert (3).

3. A magnetic core installation protection structure according to claim 1, characterized in that: It also comprises a plurality of third fixing inserts (6). When the magnetic core (1) is mounted on the first fixing insert (2), the plurality of third fixing inserts (6) are respectively arranged on two opposite sides of the side of the magnetic core (1) provided with the opening (11), and the magnetic core (1) is clamped between the plurality of third fixing inserts (6).

4. A magnetic core installation protection structure according to claim 3, characterized in that: The plurality of third fixing inserts (6) are also respectively arranged on two opposite sides of the limiting protrusion.

5. A magnetic core installation protection structure according to claim 3 or 4, characterized in that: A guiding inclined surface (61) is provided at an end of the third fixing insert (6) close to the magnetic core (1), and an end of the guiding inclined surface (61) close to the magnetic core (1) is inclined in a direction away from the second fixing insert (3).

6. The magnetic core installation protection structure according to claim 1, characterized in that: The end surface edges of the limiting protrusion close to and away from the first fixed insert (2) are both designed with arc transition.

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