Core case and method for installing the same

Abstract

To improve the problem of a mounting space and a problem in which the mounting surface fixed by a fixing portion is limited to one surface, and to greatly improve the degree of freedom of mounting.SOLUTION: A core case 10 includes a first case portion 20 having a fixing portion 22 fixed to a predetermined mounting surface, and a second case portion 30 having a fixing portion 22 fixed to a predetermined mounting surface. By combining the first case portion 20 and the second case portion 30, a magnetic core is stored inside. The first case portion 20 and the second case portion 30 have an attachment mechanism that allows the position of the fixing portion 22 of the second case portion 30 to be selected relative to the position of the fixing portion 22 of the first case portion 20 when combined with each other.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a core case used in noise filter products, noise countermeasure products, etc., which houses a magnetic core therein and is fixed to a predetermined mounting surface, and to a mounting method for the core case. [Background technology]

[0002] A core case used in conventional noise filter products and noise countermeasure products has, for example, the structure shown in Fig. 10. Note that Fig. 10(A) shows the core case after the case part and the cover part are combined, and (B) shows the core case in a disassembled state into the case part and the cover part.

[0003] 10, the XYZ directions are mutually orthogonal directions, and specifically, the surface of case part 110 to which cover part 120 is combined is defined as the front surface, the X direction is the left-right direction, the Y direction is the up-down direction, and the Z direction is the front-rear direction. Also, the +X side in the X direction is defined as the right side, the -X side as the left side, the +Y side in the Y direction is defined as the upper side, the -Y side as the lower side, and the +Z side in the Z direction is defined as the front side, and the -Z side as the rear side.

[0004] As shown in FIG. 10, a conventional core case 100 is composed of a case portion 110 and a cover portion 120, and the case portion 110 has a core storage portion 112 in which a magnetic core is stored, and a fixing portion 114 for fixing the core case 100 to a predetermined mounting surface.

[0005] The core case 100 stores the magnetic core in the core storage section 112 of the case section 110, and after combining the case section 110 with the cover section 120, the core case 100 is fixed to the mounting surface by fixing sections 114 formed at two locations on the left and right sides of the lower part of the case section 110 using fixing members, such as screws. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent Publication No. 2017-152549 Summary of the Invention [Problem to be solved by the invention]

[0007] However, in the conventional core case 100, fixing portions 114 are formed in two places, on the left and right sides of the lower part of the case portion 110, so that a large mounting space for the core case 100 needs to be secured, which restricts the placement and reduces the degree of freedom in mounting the core case.

[0008] Furthermore, the fixing portion 114 of the conventional core case 100 can only fix the core case 100 to one mounting surface, which also places restrictions on the positioning of the core case and reduces the freedom in mounting the core case.

[0009] Therefore, for example, it is conceivable to form fixing portion 114 not only on the bottom of case portion 110 but also on the top and bottom of case portion 110 so that it can be fixed to two mounting surfaces (top and bottom, etc.); however, this would require producing different case portions 100 with fixing portion 114 in different positions to suit the possible fixing methods, which would increase costs such as mold costs, management costs, etc.

[0010] The present invention aims to provide a core case and an installation method for the core case that improves the problems of installation space and the problem of the installation surface being limited to one surface by the fixing part, thereby significantly improving the freedom of installation. [Means for solving the problem]

[0011] (Core Case) The present invention relates to a core case, A first case portion having at least one fixing portion that is fixed to a predetermined mounting surface; A second case portion having at least one fixing portion that is fixed to a predetermined mounting surface; Equipped with The magnetic core is housed inside the first and second case parts, The device is characterized by having a structure that makes it possible to select the position of the fixing part of the second case part relative to the position of the fixing part of the first case part when the first case part and the second case part are assembled.

[0012] (Mounting mechanism) The first case portion and the second case portion have an attachment mechanism that enables selection of the position of the fixing portion of the second case portion relative to the position of the fixing portion of the first case portion when the first case portion and the second case portion are combined with each other.

[0013] (Specific examples of attachment mechanisms) The mounting mechanism of the first case part and the second case part has a structure in which a predetermined number of convex parts and concave parts are arranged alternately in a continuous manner, The first case part and the second case part are assembled together by fitting the convex part of the first case part into the concave part of the second case part and fitting the concave part of the second case part into the convex part of the first case part, By changing the convex portion and the concave portion to be fitted together, it is possible to select the position of the fixing portion of the second case portion relative to the position of the fixing portion of the first case portion.

[0014] (Case part with the same structure) The first case portion and the second case portion have the same structure.

[0015] (How to install the core case) The above-mentioned core case mounting method, At least one position of the fixing portion of the first case portion is aligned with the first mounting surface and fixed; The present invention is characterized in that at least one position of the fixing portion of the second case portion is aligned with and fixed to a second mounting surface different from the first mounting surface.

[0016] (Installation method that reduces installation space) The positions of the fixing parts of the first case part and the second case part which are fixed to either of the mounting surfaces are fixed so as to be biased in one predetermined direction. Effect of the Invention

[0017] (Effect of core case) The present invention is a core case comprising a first case part having at least one fixing part fixed to a predetermined mounting surface, and a second case part having at least one fixing part fixed to a predetermined mounting surface, and a magnetic core is housed inside by combining the first case part and the second case part, and a structure is provided that allows the position of the fixing part of the second case part to be selected relative to the position of the fixing part of the first case part when the first case part and the second case part are combined, so that the attachment to the mounting surface is not limited to one surface, and the positions of the fixing parts of the first case part and the fixing parts of the second case part can be adjusted to correspond to various mounting surfaces, greatly improving the degree of freedom in attaching the core case to the mounting surface. In addition, there is no need to manufacture a separate case part when changing the position of the fixing part, which makes it possible to reduce costs.

[0018] (Effect of mounting mechanism) The first case part and the second case part have an attachment mechanism that makes it possible to select the position of the fixing part of the second case part relative to the position of the fixing part of the first case part when they are combined with each other, making it possible to adjust the position of the fixing part when assembling the core case.

[0019] (Effects of specific examples of attachment mechanisms) The mounting mechanism of the first case part and the second case part has a structure in which a predetermined number of convex parts and concave parts are arranged alternately to form a single connection, and the first case part and the second case part are combined by the convex parts of the first case part fitting into the concave parts of the second case part and the concave parts of the second case part fitting into the convex parts of the first case part. By changing the fitting convex parts and concave parts, it is possible to select the position of the fixed part of the second case part relative to the position of the fixed part of the first case part. Therefore, the position of the fixed part can be adjusted by changing the fitting convex parts and concave parts, making it possible to easily adjust the position of the fixed part.

[0020] (Effect of case part with the same structure) Since the first case portion and the second case portion are made to have the same structure, there is no need to manufacture the case portion separately into the first case portion and the second case portion, which further reduces costs.

[0021] (Effect of core case mounting method) In the above-mentioned core case mounting method, at least one position of the fixing parts of the first case part is fixed to match a first mounting surface, and at least one position of the fixing parts of the second case part is fixed to match a second mounting surface different from the first mounting surface. This makes it possible to mount the core case without being limited to one surface, allowing for flexible mounting of the core case.

[0022] (Effect of the mounting method that reduces mounting space) Since the positions of the fixing parts of the first case part and the second case part which are fixed to either mounting surface are fixed so as to lean towards one specified direction, the mounting space is reduced, making it possible to mount the core case even in a narrow mounting space, and contributing to the miniaturization of noise filter products and noise countermeasure products where they are used. [Brief description of the drawings]

[0023] [Figure 1] FIG. 2 is an explanatory diagram showing a core case according to the first embodiment. [Diagram 2] FIG. 4 is an explanatory view showing a first case portion. [Diagram 3] 13 is an explanatory diagram showing the attachment mechanism of the first case part as viewed from the front. FIG. [Figure 4] FIG. 13 is an explanatory diagram showing a core case assembled so as to be fixed to the lower surface. [Diagram 5] 5 is an explanatory diagram showing a core case assembled by rotating the second case part by 90° from the assembly shown in FIG. 4. FIG. [Figure 6] 5 is an explanatory diagram showing a core case assembled by rotating the second case part 180° from the assembly shown in FIG. 4. FIG. [Figure 7]13 is an explanatory diagram showing a core case and a first case part of a second embodiment. FIG. [Figure 8] 13 is an explanatory diagram showing the core case combined with the second case part rotated, viewed from the front left. FIG. [Figure 9] 1 is a front view of the core case assembled by rotating the second case part. FIG. [Figure 10] FIG. 13 is an explanatory diagram showing a conventional core case. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] Hereinafter, an embodiment of the core case according to the present invention will be described. However, the present invention is not limited to the following embodiment.

[0025] [Basic Concept of the Embodiment] First, a basic concept of the embodiment will be described. The embodiment generally relates to a core case that houses a magnetic core and is fixed to a predetermined mounting surface, and the core case is attached to the predetermined mounting surface of a noise filter product, a noise countermeasure product, or the like for use.

[0026] The core case of the embodiment comprises a first case part and a second case part, and is characterized by having a structure that enables selection of the position of the fixing part of the second case part relative to the position of the fixing part of the first case part when the first case part and the second case part are assembled.

[0027] Here, the "first case part" and the "second case part" have at least one fixing part that is fixed to a predetermined mounting surface, and the first case part and the second case part are combined to house the magnetic core inside, and the first case part and the second case part may be common as a case part of the same structure. Also, the names "first" and "second" only limit the core case to having two case parts, and do not limit the specific case parts.

[0028] In addition, the first case part and the second case part may have multiple fixing parts, the number of fixing parts may be different, and there may be fixing parts that are not used when fixing (attaching) the core case to the attachment surface. In addition, the present invention is not limited to the attachment of the core case to one surface, but does not exclude the core case being attached to an attachment surface that is one surface, that is, does not exclude the attachment surface to which the fixing parts of the first case part are fixed and the attachment surface to which the second case part is fixed being the same. In addition, both the first case part and the second case part may have multiple fixing parts, and in that case, it includes the case where one case part is fixed to multiple handling surfaces.

[0029] As a structure that enables selection of the position of the fixing part of the second case part relative to the position of the fixing part of the first case part when the first case part and the second case part are assembled together, for example, there is one that has an attachment mechanism that enables selection of the position of the fixing part of the second case part relative to the position of the fixing part of the first case part when the first case part and the second case part are assembled together.

[0030] In addition, as a structure that can change the position of the fixed part of the second case part relative to the position of the fixed part of the first case part when the first case part and the second case part are assembled, in addition to the mounting mechanism, any structure can be selected, such as a structure that allows the position of the fixed part in the case part to be freely adjusted, for example a structure that provides a guide part such as a guide rail on the outer periphery of the case part and allows the fixed part to be freely moved along the guide part.

[0031] Also, whether the "mounting mechanism" has a similar structure is also optional, and for example, the mounting mechanism of the first case part and the second case part has a structure in which a predetermined number of convex parts and concave parts are arranged so that the same number of convex parts and concave parts are alternately connected, and the first case part and the second case part are combined by fitting the convex parts of the first case part into the concave parts of the second case part and fitting the concave parts of the second case part into the convex parts of the first case part, and by changing the convex parts and concave parts to be fitted together, the position of the fixing part of the second case part relative to the position of the fixing part of the first case part can be selected. Also, the "convex parts" and "concave parts" are alternately arranged in a single line, for example, on the circumference of a circle or a polygon, and the number of convex parts and concave parts arranged is arbitrary as long as there are the same number of convex parts and concave parts.

[0032] In the core case of the embodiment, at least one position of the fixing parts of the first case part is fixed to match a first mounting surface, and at least one position of the fixing parts of the second case part is fixed to match a second mounting surface different from the first mounting surface, thereby enabling the core case to be mounted on a variety of mounting surfaces, as the positions of the fixing parts of the first case part and the second case part can be adjusted to correspond to the mounting surface.

[0033] In addition, by fixing the positions of the fixing parts of the first case part and the second case part so that they are biased towards one specific direction, the installation space is reduced, making it possible to install the core case even in a narrow installation space, thereby contributing to the miniaturization of noise filter products and noise countermeasure products where they are used.

[0034] The specific contents of the embodiment will be described below by presenting examples. In the specific contents of the embodiment, the first case part and the second case part are case parts of the same structure, and the case part has one fixing part and an attachment mechanism in which convex parts and concave parts are alternately arranged on the circumference.

[0035] [Specific details of the embodiment] The specific contents of the embodiment will be described separately as follows. a. Core case of the first embodiment a1. Core case configuration a2. Case structure a3. How to combine the first and second case parts b. Core case of the second embodiment b1. Core case and case part configuration b2. How to combine the first and second case parts c. Modifications of the present invention

[0036] [a. Core case of the first embodiment] A description will now be given of the core case of the first embodiment. In the core case of the first embodiment, the mounting mechanism of the case part has four protrusions and four recesses on the outer and inner circumferences of the cylindrical case part.

[0037] (a1. Core case structure) First, the structure of the core case will be described. In this description, reference will be made to Fig. 1, which shows the core case of the first embodiment. Fig. 1 (A) shows the core case after the first case part and the second case part are combined, and Fig. 1 (B) shows the core case in a disassembled state into the first case part and the second case part.

[0038] In the description of Fig. 1, the X, Y and Z directions are mutually orthogonal directions, and specifically, the surface of the first case part 20 where the second case part 30 is assembled is defined as the front surface, the X direction is the left-right direction, the Y direction is the up-down direction, and the Z direction is the front-rear direction. In addition, the +X side in the X direction is defined as the right side, the -X side is defined as the left side, the +Y side in the Y direction is defined as the upper side, the -Y side is defined as the lower side, the +Z side in the Z direction is defined as the front side, and the -Z side is defined as the rear side. The X, Y and Z directions in Figs. 2 to 9 are the same as those in Fig. 1.

[0039] 1, the core case 10 is composed of a first case part 20 and a second case part 30, and the first case part 20 and the second case part 30 have a fixing part 22 at one of their lower parts for fixing to a predetermined mounting surface. Although the first case part 20 and the second case part 30 are cylindrical in shape, an appropriate shape may be applied depending on the shape of the magnetic core to be stored.

[0040] Core case 10 has a magnetic core disposed between first case part 20 and second case part 30, and stores the magnetic core inside by combining first case part 20 and second case part 30, and is fixed to a mounting surface by fixing parts 22 of first case part 20 and fixing parts 22 of second case part 30 using fixing members such as screws. Note that Fig. 1 shows a method of combining first case part 20 and second case part 30 when core case 10 is attached (fixed) to one mounting surface (lower surface) similarly to the conventional core case 100 shown in Fig. 10.

[0041] Furthermore, when the first case part 20 and the second case part 30 of the core case 10 are assembled, the fixing mechanisms 24 formed at a predetermined interval on the outer periphery of each of the first case part 20 and the second case part 30 are inserted into the protrusions of the mating attachment mechanisms located on the outer periphery of each of the first case part 20 and the second case part 30, thereby fixing the first case part 20 and the second case part 30 in the assembled state. Note that the core case 10 may have a structure that does not have the fixing mechanism 24, and in the case of a case part that does not have the fixing mechanism 24, the first case part 20 and the second case part 30 are fixed in the assembled state by, for example, silicone rubber or an adhesive.

[0042] In addition, the first case part 20 and the second case part 30 are case parts of the same structure, and one case part can be combined with the other case part by inverting it. Therefore, only one type of mold is required to manufacture the case parts, and mold costs can be reduced. In addition, since the core case is manufactured using two identical case parts, the number of setup changes during manufacturing can be reduced, and the minimum order quantity can be increased, making it possible to reduce the part unit price compared to conventional core cases.

[0043] (a2. Case structure) Next, the structure of the case parts constituting the core case will be described. In this description, since the first case part 20 and the second case part 30 have the same structure, the first case part will be taken up and reference will be made to Figures 2 and 3 which show the first case part. Figure 2(A) is a view seen from the left front as in Figure 1, (B) is a view seen from below, (C) is an enlarged view of the circle area indicated by the dashed line in (A), and Figure 3 is a view showing the attachment mechanism of the first case part as seen from the front.

[0044] The first case portion 20 has a first mounting mechanism 26 and a second mounting mechanism 28 as mounting mechanisms, the first mounting mechanism 26 being formed on the outer periphery of the cylindrical shape, and the second mounting mechanism 28 being formed on the inner periphery of the cylindrical shape. Note that it is not necessary to have both the first mounting mechanism 26 and the second mounting mechanism 28 as mounting mechanisms, and it is also possible to have only one of the first mounting mechanism 26 and the second mounting mechanism 28.

[0045] As shown in Fig. 3, the first attachment mechanism 26 and the second attachment mechanism 28 each have four convex portions and four concave portions that are alternately arranged on a circumference rotated by 45°. When expressing the convex portions or concave portions of the first attachment mechanism 26 and the second attachment mechanism 28 separately, they are labeled "first" to "fourth," and the names and symbols shown in Fig. 3 are applied.

[0046] In addition, a fixing mechanism 24 having an engaging receiving portion 2410 on the inner peripheral side is provided at the boundary between the convex portion and the concave portion of the first attachment mechanism 26 formed on the outer periphery of the first case part 20, and an engaging claw portion 2690 formed on the convex portion of the first attachment mechanism 26 engages with the engaging receiving portion 2410 of the fixing mechanism 24, so that when the first case part 20 and the second case part 30 are combined, the first case part 20 and the second case part 30 can be fixed in the combined state.

[0047] (a3. How to combine the first and second case parts) Next, a method of assembling the first case part and the second case part will be described. In this description, reference is made to Fig. 4, which shows a core case assembled so as to be fixed to the underside, as in Fig. 1, Fig. 5, which shows a core case assembled by rotating the second case part by 90° from the combination shown in Fig. 4, and Fig. 6, which shows a core case assembled by rotating the second case part by 180° from the combination shown in Fig. 4. Note that (A) of Fig. 4 to 6 shows the core case as seen from the left front as in Fig. 1, (B) shows the core case as seen from the front, and (C) shows the combination of the convex parts and concave parts of the first attachment mechanism and the second attachment mechanism in a table format.

[0048] The first case part 20 and the second case part 30 are provided with a first attachment mechanism 26 and a second attachment mechanism 28 having four convex parts (first convex part to fourth convex part) and concave parts (first concave part to fourth concave part) as attachment mechanisms, and the first case part 20 and the second case part 30 are combined by combining the convex part of the attachment mechanism of one case part with the concave part of the attachment mechanism of the other case part, and combining the concave part of the attachment mechanism of one case part with the convex part of the attachment mechanism of the other case part. By changing the convex part and the concave part to be combined, the position of the fixing part 22 of the second case part 30 relative to the fixing part 22 of the first case part 20 when the first case part 20 and the second case part 30 are combined can be changed.

[0049] For example, as shown in Figures 4(A) and (B), when the first case part 20 and the second case part 30 are combined so as to be fixed to the underside by the fixing part 22 of the first case part 20 and the fixing part 22 of the second case part 30, the combination of the first convex part 2610 to the fourth concave part 2680 of the first attachment mechanism 26 and the first concave part 2810 to the fourth convex part 2880 of the second attachment mechanism 28 will be combined as shown in Figure 4(C).

[0050] Furthermore, as shown in Figures 5 (A) and (B), when the second case part 30 is rotated 90° counterclockwise when viewed from the front from the state of Figure 4 and combined with the first case part 20, the combination of the first convex portion 2610 to the fourth concave portion 2680 of the first attachment mechanism 26 and the first concave portion 2810 to the fourth convex portion 2880 of the second attachment mechanism 28 will be combined as shown in Figure 5 (C).

[0051] As shown in FIG. 5, the core case 10 formed by combining the first case part 20 and the second case part 30 is fixed to the underside (first mounting surface) by the fixing part 22 of the first case part 20, and is also fixed to the right side surface (second mounting surface) perpendicular to the first mounting surface by the fixing part 22 of the second case part 30. This makes it possible to mount (fix) the core case 10 to, for example, corners inside the housing of a noise filter product or noise countermeasure product, without having to secure a large mounting space.

[0052] Furthermore, as shown in Figures 6(A) and (B), when the second case part 30 is rotated 180 degrees counterclockwise when viewed from the front from the state of Figure 4 and combined with the first case part 20, the combination of the first convex portion 2610 to the fourth concave portion 2680 of the first attachment mechanism 26 and the first concave portion 2810 to the fourth convex portion 2880 of the second attachment mechanism 28 will be as shown in Figure 6(C).

[0053] 6, the core case 10, which is the combination of the first case part 20 and the second case part 30, is fixed to the lower surface (first mounting surface) by the fixing part 22 of the first case part 20 and is also fixed to the upper surface (second mounting surface) opposite the first mounting surface by the fixing part 22 of the second case part 30, and can be attached (fixed) to a small partitioned space inside the housing of a noise filter product or a noise countermeasure product without having to secure a large mounting space. Also, with this combination, the fixing part 22 of the first case part 20 and the fixing part 22 of the second case part 30 are shifted to the left side, which makes it possible to reduce the mounting space.

[0054] As described above, in the core case 10 of the first embodiment, the first case part 20 and the second case part 30 can be combined in three patterns by rotating the second case part 30 90° with respect to the first case part 20, and the attachment of the core case is not limited to one surface, and the attachment space can be reduced, making it possible to significantly improve the degree of freedom of attachment of the core case to the attachment surface. Note that in the core case 10 of the first embodiment, the fixing part 22 of the first case part 20 and the fixing part 22 of the second case part 30 interfere with each other, so the second case part 30 cannot be rotated 270° counterclockwise as viewed from the front from the state of FIG. 4 to be combined with the first case part 20.

[0055] [b. Core case of the second embodiment] Next, a description will be given of a core case according to the second embodiment. In the core case according to the second embodiment, the mounting mechanism of the case part has eight protrusions and recesses on the outer and inner circumferences of the cylindrical case part, respectively.

[0056] (b1. Structure of the core case and case part) First, the structure of the core case and the case part will be described. In this description, reference will be made to Fig. 7 showing the core case and the first case part of the second embodiment. Note that Fig. 7 (A) shows the core case, and (B) shows the first case part.

[0057] As shown in (A) of Figure 7, like the core case 10 of the first embodiment, the core case 50 of the second embodiment is composed of a first case part 60 and a second case part 70 of the same structure, and the first case part 60 and the second case part 70 have a fixing part 62.

[0058] The difference from the core case 10 of the first embodiment is that there is no fixing mechanism, and that the first attachment mechanism 66 and the second attachment mechanism 68 each have eight convex parts and concave parts arranged alternately on a circumference rotated by 22.5°, but other than that, the description is omitted since it is basically the same as the core case 10 of the first embodiment. Note that the fixing part 62 shown in Fig. 7 does not have a hole for passing a screw as a fixing member, but it may have a hole for passing a screw like the fixing part 22 of the core case 10 of the first embodiment, or may be fixed by another fixing member.

[0059] (b2. How to combine the first and second case parts) Next, a method of assembling the first case part and the second case part will be described. In this description, reference is made to Fig. 8, which shows the core case assembled by rotating the second case part from the left front, and Fig. 9, which shows the core case assembled by rotating the second case part from the front. Fig. 8 and 9 (A) show the core case assembled so as to be fixed to the underside, similar to Fig. 7 (A), and (B) to (F) show the core cases assembled by rotating the second case part by 45° from the state of (A).

[0060] In the first embodiment, it was possible to combine the first case part 20 and the second case part 30 in three patterns by rotating the second case part 30 relative to the first case part 20 by 90° increments. However, in the second embodiment, the first case part 60 and the second case part 70 are provided with a first attachment mechanism 66 and a second attachment mechanism 68 having eight convex portions and eight concave portions as attachment mechanisms, so that it is possible to combine the first case part 60 and the second case part 70 in a total of six patterns by rotating the second case part 70 relative to the first case part 60 by 45° increments, as shown in Figures 8 and 9 (A) to (F).

[0061] 8 and 9, the combinations shown in (A), (C), and (E) in Fig. 8 and 9 are possible with the core case 10 of the first embodiment, but the combinations shown in (B), (D), and (F) are not possible with the core case 10 of the first embodiment. Note that with the core case 50 of the second embodiment, the fixing portion 62 of the first case portion 60 and the fixing portion 62 of the second case portion 70 interfere with each other, so the second case portion 70 cannot be combined with the first case portion 60 by further rotating it counterclockwise by 45° or 90° from the state shown in (F) in Fig. 8 and 9.

[0062] For this reason, the core case 50 of the second embodiment has a higher degree of disassembly and allows the position of the fixing portion 62 to be adjusted compared to the core case 10 of the first embodiment, allowing for more flexible attachment to the attachment surface and further significantly improving the freedom of attachment of the core case.

[0063] [c. Modifications of the present invention] Modifications of the core case according to the present invention will now be described In addition to the above-described embodiment, the core case according to the present invention includes the following modifications.

[0064] (Case part) In the above embodiment, the first case portion and the second case portion have the same structure, but they may have different structures.

[0065] In addition, although the first case part and the second case part have one fixing part, the number of fixing parts is not limited to one, and the number of fixing parts provided by the first case part and the second case part may be different.

[0066] (Mounting mechanism) In the above embodiment, the mounting mechanism has four convex portions and concave portions rotated by 45° and arranged alternately, and eight convex portions and concave portions rotated by 22.5° and arranged alternately, but the numbers of convex portions and concave portions are not limited to these and may each be any number equal to or greater than 2. Here, if the number of convex portions and concave portions (number of sets) is n (n≧2), the convex portions and concave portions are rotated by an angle of 360° / 2n and arranged alternately.

[0067] Furthermore, the mounting mechanism is not limited to a structure in which convex portions and concave portions are arranged alternately, but may be one that makes it possible to change the position of the fixing portion of the second case part relative to the fixing portion of the first case part by changing the way in which the first case part and the second case part are combined.

[0068] For example, when the first case part and the second case part are combined, the second case part is freely rotatable relative to the first case part until it is fixed by the fixing mechanism, and the second case part is fixed to the first case part by the fixing mechanism, making it possible to adjust the position of the fixing part of the second case part relative to the fixing part of the first case part to any position.

[0069] Furthermore, as shown in the basic concept of the embodiment, the structure for changing the position of the fixing part of the second case part relative to the position of the fixing part of the first case part is not limited to the application of an attachment mechanism, and any structure can be applied to the core case.

[0070] (Combination of the first and second case parts) In both the first and second embodiments, there were cases where the fixing portions of the first and second case portions interfered with each other, making it impossible to combine them even though the structure of the mounting mechanism allowed them to be combined. However, it is possible to avoid the fixing portions of the first and second case portions interfering with each other and further increase the number of combination patterns of the first and second case portions by, for example, increasing the fore-aft length of the convex portion of the mounting mechanism or shortening the fore-aft length (width) of the fixing portion and positioning the fixing portion of the first case portion toward the rear and the fixing portion of the second case portion toward the front.

[0071] (others) Furthermore, the present invention includes appropriate modifications that do not impair the objects and advantages of the present invention, and is not limited to the numerical values ​​shown in the above embodiment. [Explanation of symbols]

[0072] 10, 50, 100: Core case 20, 60: First case part 22, 62, 114: Fixed part 24:Fixing mechanism 2410: Fitting receiving part 26, 66: First attachment mechanism 2610: First convex part 2620: First recess 2630: Second convex part 2640: Second recess 2650: Third convex part 2660: 3rd recess 2670: 4th convex part 2680: 4th recess 2690: Interlocking claws 28, 68: Second attachment mechanism 2810: First recess 2820: First convex part 2830: 2nd recess 2840: Second convex part 2850: 3rd recess 2860: Third convex part 2870: 4th recess 2880: 4th convex part 30, 70: Second case part 110: Case part 112: Core storage section 120: Cover part

Claims

1. A first case portion having at least one fixing portion that is fixed to a predetermined mounting surface; A second case portion having at least one fixing portion that is fixed to a predetermined mounting surface; Equipped with The first case portion and the second case portion are combined to house a magnetic core therein, A core case characterized by having a structure that makes it possible to select the position of the fixing part of the second case part relative to the position of the fixing part of the first case part when the first case part and the second case part are assembled.

2. The core case according to claim 1, A core case characterized in that the first case part and the second case part have an attachment mechanism that enables selection of the position of the fixing part of the second case part relative to the position of the fixing part of the first case part when they are combined with each other.

3. The core case according to claim 2, The mounting mechanism of the first case portion and the second case portion has a structure in which a predetermined number of convex portions and concave portions are arranged alternately in a continuous manner, the first case portion and the second case portion are assembled together by fitting a protrusion of the first case portion into a recess of the second case portion and fitting a recess of the second case portion into a protrusion of the first case portion, A core case characterized in that the position of the fixing portion of the second case part relative to the position of the fixing portion of the first case part can be selected by changing the convex and concave parts to be fitted together.

4. The core case according to claim 1, A core case, wherein the first case portion and the second case portion are case portions having the same structure.

5. A method for attaching a core case according to any one of claims 1 to 4, comprising the steps of: At least one position of the fixing portion of the first case portion is aligned with the first mounting surface and fixed; A method for mounting a core case, comprising: fixing at least one position of the fixing portion of the second case portion to a second mounting surface different from the first mounting surface.

6. The method for attaching the core case according to claim 5, A method for mounting a core case, characterized in that the positions of the fixing portions of the first case part and the second case part which are fixed to either of the mounting surfaces are fixed so as to be biased in one predetermined direction.

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