TWI676190B - Magnetic component fixing member and its fixed group - Google Patents

Abstract

The invention is a magnetic element fixing piece and a fixing group composed of the fixing piece, which comprises a fixing piece, the fixing piece has a back plate, and the peripheral edge of the back plate extends inward to form more than one retaining edge matching the shape of a magnetic component. A first buckle and a second buckle are respectively formed at two opposite positions on the periphery of the back plate, and the first buckle and the second buckle are in a matching relationship; when the two fixing members are arranged in opposite directions and complement each other The corresponding first buckle and the second buckle are fastened to each other, so that a matching shape magnetic element can be covered and fixed therebetween. With the above structure, a single specification fixing member can be used to form a fixing group in pairs for a circuit. The magnetic components are fixed on the board, and the number of fixed magnetic components can be easily expanded.

Description

Magnetic component fixing piece and fixing group composed thereof

The invention relates to a fixing device, in particular to a fixing piece for fixing a magnetic element and a fixing group formed by the fixing piece.

Magnetic components such as transformers are important components in power supplies and power conversion modules, and the main circuits of the above power supplies and power conversion modules are built on a circuit board. Because the magnetic components themselves have a considerable volume, In addition to the sexual connection relationship, there is also a combination relationship on the organization, and the combination relationship on the organization must not only consider the stability, but also consider avoiding affecting the electrical connection relationship.

On many special power supply equipment, the factors related to the electrical connection of magnetic components and the combination of mechanisms are more complicated. For example, high-power-density power supply devices may have more restrictions on the use of space. Under this condition, The fixation of magnetic components must take into account the environmental constraints and take into account the relationship between the electrical connection and the mechanism.

It can be known from the above that when the power supply equipment has more restrictions on the use of space, the fixation of the magnetic components must meet the restrictions of the use environment, and it is more adaptive and flexible in structural design.

Therefore, the main object of the present invention is to provide a magnetic component fixing member, which is mainly a fixing member of a single specification, which can be used in pairs to fix a matching magnetic component, and is convenient for fixing to a carrier such as a circuit board.

The technical means adopted to achieve the above-mentioned objective is to make the aforementioned magnetic element fixing member include: a back plate with a peripheral edge; and more than one retaining edge formed by the peripheral edge of the back plate extending inward, which is matched with a magnetic component A first buckle formed by a first position extending inwardly of the peripheral edge of the back plate; a second buckle formed by a second position extending inwardly of the peripheral edge of the back plate, The second buckle is opposite to the first buckle and has a matching relationship; more than one joint portion is provided at a peripheral edge of the back plate.

When the aforesaid fixing members are arranged in pairs in opposite directions, the matching first buckle and the second buckle can be fastened to each other to form a fixing group, and a magnetic element is fixed therebetween, and the coupling portion is used to be coupled to For example on a carrier board. Since the above-mentioned fixing members are of a single specification, when they are used in pairs, a fixing group is combined, which can adapt to the environmental conditions and conveniently combine the magnetic components on the circuit board.

In the following, the technical means adopted by the present invention to achieve the intended purpose of the present invention will be further explained with reference to the drawings and preferred embodiments of the present invention.

Regarding a preferred embodiment of the present invention, please refer to FIG. 1 and FIG. 2 first, which includes a fixing member 10 having a back plate 100, and a peripheral edge of the back plate 100 is formed to extend inwardly. The above-mentioned retaining edge 13 that matches the contour of a magnetic element has a first buckle piece 11 and a second buckle piece 12 formed at the opposite first and second positions, respectively. The two buckles 12 are in a matching relationship. When the fixing members 10 are used in pairs facing each other, the first buckle 11 and the second buckle 12 in a matching relationship can be used to fasten each other to a magnetic component. It is fixed between two opposite fixing members 10. The back plate 100 is further provided with more than one coupling portion 14 for coupling the two fixing members 10 and the magnetic elements therebetween to a carrier.

The back plate 100 can be rectangular, circular, or other shapes, and mainly matches the shape of the magnetic element. In this embodiment, the fixing member 10 is used to fix the magnetic element 20 having a rectangular iron core 21, and the back plate 100 is rectangular, and the periphery is also rectangular, and has a top, a bottom, and a parallel shape. On both sides, the back plate 100 extends inwardly at four corners to form a relatively L-shaped retaining edge 13 for matching and covering the core 21 of the magnetic element 20. Further, the retaining edge 13 has a horizontal portion and a vertical portion. A convex rib 130 is formed on the inner wall of the horizontal portion and the vertical portion, respectively, to compensate for the gap between the blocking edge 13 and the core 21 due to tolerances.

One side of the back plate 100 extends to the inside to form the first buckle 11, and the other side extends to the inside to form the second buckle 12. The first buckle 11 and the second buckle 12 are Matching relationship. In this embodiment, the first buckle 11 has a horizontal section. A round buckle 111 is formed at the end of the horizontal section. The outer diameter of the buckle 111 is greater than the width of the horizontal section. An inner inclined wall 112 is formed on the side to reduce the thickness of the end portion of the buckle portion 111 and increase the thickness to the original thickness. The design makes the first buckle piece 11 easier to buckle.

Please refer to FIG. 2 and FIG. 3. The second buckle 12 is sheet-shaped, and a buckle groove 121 in a horizontal direction is formed thereon. One end of the buckle groove 121 penetrates the free end of the second buckle piece 12. A narrowed section 122 is formed. The width of the narrowed section 122 is smaller than the groove width of the buckle groove 121. The inner end of the narrowed section 122 is arc-shaped and matches the periphery of the buckle portion 111 of the first buckle piece 11. An inclined surface 123 is formed on the outer side wall of the free end of the second buckle piece 12 and matches the inner inclined wall 112 of the buckle portion 111 of the first buckle piece 11.

Please refer to FIG. 4, when two fixing members 10 disposed in opposite directions are used to fix the magnetic element 20 therebetween, the first buckle 11 of one of the fixing members 10 passes through the other fixing member by its buckling portion 111. The second buckle piece 10 of 10 enters the buckle groove 121 thereon, and the buckle portion 111 will stop inside the necked section 122 of the buckle groove 121, so that the first buckle piece 11 and the second buckle piece 12 can mutually Buckle. The first buckle 11 of the aforementioned another fixing member 10 also passes through the second buckle 10 of one of the fixing members 10 and enters the buckling groove 121 of the second buckle 12 with its buckling portion 111 and is fastened to each other in the same manner. . As shown in FIG. 5, since the buckle portion 111 of the first buckle piece 11 is formed with an inner inclined wall 112, the outer side wall of the free end of the second buckle piece 12 is formed with a beveled surface 123. When the buckle 12 is advanced in the opposite direction, the buckle portion 111 of the first buckle 11 first contacts the inclined surface 123 of the free end of the second buckle 12 with its inner inclined wall 112. When the two continue to advance in the opposite direction, they can follow the opposite slope Passed smoothly, the buckle portion 111 of the first buckle 11 enters the buckle groove 121 of the second buckle 12, and when the thrust disappears, the buckle portion 111 of the first buckle 11 will be blocked by the necked section 122 of the second buckle 12 ( (As shown in FIG. 6), so that the two fixing members 10 can be fastened to each other, and the magnetic element 20 is fixed between them (as shown in FIG. 7); therefore, it can be known from the above that the fixing members 10 of the present invention can be two or two percent. A fixed group is formed on the ground and used to fix a magnetic component.

Still referring to FIG. 1, a wedge post 101 and a wedge groove 102 are respectively formed on the outer surface of the back plate 100 of the fixing member 10, and when facing away from the other fixing member 10, wedges in complementary positions can be used. The column 101 and the wedge groove 102 are wedged and connected to each other, that is, a plurality of fixing groups can be connected to each other by using these wedged structures (as shown in FIG. 8).

In this embodiment, a perforation is formed in the center of the back plate 100 of the fixing member 10. A perforation piece 103 protruding toward the inner side of the back plate 100 is provided in the perforation. A plurality of connections are formed between the perforation piece 103 and the edge of the perforation hole. The rib 104 is used for supporting the blocking piece 103 and making the blocking piece 103 slightly elastic. As a result, the two fastening members 10 that are fastened to each other can use the resisting piece 103 protruding from the inner side thereof to abut against the magnetic element 20 located between the two to strengthen the fixing effect.

Please refer to FIG. 1 and FIG. 2. In this embodiment, the fixing member 10 is provided with the coupling portion 14 at both ends of the top of the back plate 100. The coupling portion may be a screw hole for using a screw. The combination method is combined with the carrier. In this embodiment, the coupling portion 14 is a hook, that is, two hooks are formed at the top and two ends of the back plate 100, and the two hooks are facing outwards. The fastening method is combined with the carrier.

Please refer to FIG. 9. In this embodiment, the above-mentioned carrier is a circuit board 30. The circuit board 30 is formed with more than one hook groove 31 so as to cooperate with the joint portion 14 on the fixing member 10 to fix the circuit board 30. The group is combined with the circuit board 30. Regarding the cooperation between the above-mentioned joints 14 on the fixing member 10 and the hook grooves 31 provided on the circuit board 30, a one-to-one corresponding relationship may be provided, that is, the number of the hook grooves 31 provided on the circuit board 30 and the joints 14 of the fixing group The number is the same. In this embodiment, the circuit board 30 is formed with a plurality of hook grooves 31 having a larger size. Further, each hook groove 31 corresponds to a joint portion 14 on a fixing group (two fixing members 10). It means that a total of four joints 14 on the two fixing members 10 are hooked together on the opposite groove edges of the same hook groove 31 (as shown in FIGS. 10 and 11).

It can be known from the foregoing that the present invention is to make the first fastener piece 11 and the second fastener piece 12 having a matching relationship on the fixing member 10 of a single structure, so that they can be fastened to each other in pairs to form a fixing group for fixing a磁 Element20. In the foregoing embodiment, the fixing group is hooked on the hook groove 31 of the circuit board 30 by using the coupling portion 14 in the form of a hook on the two fixing members 10. In this case, the magnetic element 20 is suspended in a hanging manner. The bottom surface of the circuit board 30 (as shown in FIG. 11), of course, magnetic components can also be bonded to the surface of the circuit board 30 in the same bonding manner, and the form of the bonding portion 14 can also be changed to screw bonding or chemical bonding. It can be seen that the fixing element and the magnetic element fixing group of the present invention can adapt to various environmental conditions, conveniently combine the magnetic element on the circuit board, and form an electrical connection.

The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as above with the preferred embodiments, they are not intended to limit the present invention. Any person skilled in the art, Within the scope not departing from the technical solution of the present invention, when the above disclosed technical content can be used to make a few changes or modifications to equivalent equivalent embodiments, as long as it does not depart from the technical solution of the present invention, it is in accordance with the technical essence of the present invention. Any simple modifications, equivalent changes, and modifications made to the above embodiments still fall within the scope of the technical solution of the present invention.

10‧‧‧Fixed parts

100‧‧‧ back plate

101‧‧‧ wedge

102‧‧‧ wedge groove

103‧‧‧Retainer

104‧‧‧ connecting rib

11‧‧‧The first buckle

111‧‧‧Deduction

112‧‧‧Inner inclined wall

12‧‧‧Second buckle

121‧‧‧ Buckle

122‧‧‧Necked section

123‧‧‧ bevel

13‧‧‧Border

130‧‧‧ raised rib

14‧‧‧Combination

20‧‧‧ Magnetic components

21‧‧‧ Iron core

30‧‧‧Circuit Board

31‧‧‧ hook slot

FIG. 1 is an external view of a preferred embodiment of the present invention. FIG. 2 is another perspective view of a preferred embodiment of the present invention. FIG. 3 is a side plan view of a preferred embodiment of the present invention. FIG. 4 is an exploded view of a magnetic element fixing group according to a preferred embodiment of the present invention. FIG. 5 is a schematic diagram of a combination relationship of a magnetic element fixing group according to a preferred embodiment of the present invention. FIG. 6 is a combined plan view of a magnetic element fixing group according to a preferred embodiment of the present invention. FIG. 7 is an external view of a magnetic element fixing group according to a preferred embodiment of the present invention. FIG. 8 is a sectional view of a use state of a magnetic element fixing group according to a preferred embodiment of the present invention. FIG. 9 is an exploded view of a magnetic element fixing group in use according to a preferred embodiment of the present invention. FIG. 10 is another cross-sectional view of a magnetic element fixing group according to a preferred embodiment of the present invention. FIG. 11 is an external view of a magnetic element fixing group in use according to a preferred embodiment of the present invention.

Claims (10)

A magnetic component fixing member includes: a back plate having a peripheral edge, a wedge post and a wedge groove are formed on the outer surface of the back plate, and more than one retaining edge is formed by the peripheral edge of the back plate extending inward. , Which matches the shape and contour of a magnetic element; a first buckle, which is formed by a first position extending inwardly from the periphery of the back plate; a second buckle, which is a second buckle from the periphery of the back plate It is formed by the position extending inward. The second buckle is opposite to the first buckle and has a matching relationship. One or more joints are arranged at the periphery of the back plate. According to the magnetic element fixing member according to claim 1, the first buckle has a horizontal section, and a round buckle is formed at the end of the horizontal section, and the outer diameter of the buckle is greater than the width of the horizontal section; the second buckle It is in the shape of a sheet, and a buckle groove is formed on the horizontal direction. One end of the buckle groove penetrates the free end of the second buckle piece to form a narrowed section. The width of the narrowed section is smaller than the width of the buckled groove. The inner end of the necked section is arc-shaped and matches the periphery of the buckle of the first buckle. As described in claim 2, the inner side surface of the buckle portion of the first buckle piece is formed with an inner inclined wall, and the outer side wall of the free end of the second buckle piece is formed with a beveled face. The magnetic element fixing member according to claim 1, wherein a hole is formed in the center of the back plate. According to the magnetic component fixing member of claim 4, the perforation is provided with a resisting piece protruding toward the inner side of the back plate, and a plurality of connecting ribs are formed between the resisting piece and the edge of the perforated hole. According to the magnetic element fixing member according to any one of claims 1 to 5, the back plate has a rectangular shape, and each of the four corners extends inward to form a relatively L-shaped retaining edge; the periphery of the back plate is also Rectangular shape with one top, one bottom, and two sides parallel to each other; two ends of the top are provided with two joints, one side is formed with the first buckle, and the other side is formed with the second Buckle. According to the magnetic element fixing member according to claim 6, the joint of the back plate is a hook. According to the magnetic element fixing member according to claim 6, the retaining edges of the corners of the back plate have a horizontal portion and a vertical portion, and convex ribs are formed on the inner surfaces of the horizontal portion and the vertical portion, respectively. A magnetic element fixing group includes two fixing elements arranged in opposite directions, and the fixing elements are the magnetic element fixing elements according to any one of claims 1 to 8. According to the magnetic element fixing group described in claim 9, the two fixing members are used to fix a magnetic component with a matching shape.