JP2781899B2 - Coil parts holder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a closed magnetic circuit type (EE, E
(Uses I, EER, EED, UI type cores, etc.) for transformers and coil parts such as choke coils. For details, it is possible to fix not only the core and the core but also the core and the coil body. The present invention relates to a coil component holder.

[0002]

2. Description of the Related Art The structure of a conventional closed magnetic circuit type coil component is shown in FIG.
The EE cores 6a and 6b are inserted from both sides into a coil main body 4 in which a coil is wound around a bobbin 2 with a lead pin and the end of the coil is connected to the lead pin, and combined (FIG. 4B). The core 6a and the core 6b are fixed by the core holder 8. And the cores 6a, 6b
The contact between the core and the coil body is fixed with an adhesive or the like. As described above, in the conventional coil component, the core holder is intended to fix the core to the core, and the fixing of the core to the coil body is performed by using an adhesive, varnish treatment, or tape fixing. Was common.

[0003]

However, the conventional method of fixing the core and the coil body using an adhesive does not necessarily have sufficient reliability against, for example, temperature, humidity, and vibration. I could not say it. For example, the temperature is -20 to 60C
In an environment where the temperature cycle is severe such that changes occur, a product with a large coefficient of thermal expansion cannot be used.In a high-humidity environment, a product with low moisture resistance will not withstand long-term use. In such a case, the adhesive strength must not easily decrease over a long period of time. Under such severe environmental conditions of temperature, humidity, and vibration cycle, the adhesive is easily peeled or cracked, and it is difficult to maintain sufficient reliability for a long period of time. In addition, they must have good adhesion to coil components (made of ferrite, iron, etc.) and must have reliability against temperature, humidity, and vibration as described above. Few fulfilled all of the conditions. The inventors of the present invention have conducted various environmental tests for temperature cycle, humidity cycle, and vibration cycle by changing the adhesive. As a result, it has been found that poor adhesion occurs and the fixing method using the adhesive is limited. As described above, it is difficult to secure sufficient reliability with respect to environmental resistance by the fixing method using an adhesive. In addition, just as with conventional coil parts, simply inserting the core into the coil body and fixing the core to the core with the core holder has strictness in the insertion part, and unless it is fixed with an adhesive etc., the core and the coil body Positioning cannot be performed reliably. Furthermore, in the conventional coil parts, the outer periphery of the winding coil is wound with insulating tape, but the coil body and core are partially exposed to the external environment, and the coil parts are affected by changes in temperature, humidity, and vibration. The structure was easy to receive. The same problem as described above also occurs in the case of varnish treatment or tape fixing.

Accordingly, an object of the present invention is to fix a core to a core, fix a core to a coil body, and position the core and the coil body at the same time without using an adhesive or the like. An object of the present invention is to provide a coil component holder that can improve reliability against environmental conditions.

[0005]

In order to solve the above-mentioned problems, the present inventors have proposed a method of simultaneously fixing a core and a core and fixing a core and a coil body without using an adhesive or the like. As a result of various studies on possible means, the upper and lower winding portions of the coil of the coil body were molded including the bobbin portion, the core was mounted, and then the fixing of the core and the core, and the core and the molding portion were simultaneously performed. By fixing with a holder that can be fixed, the core and the coil body can be fixed without using an adhesive etc. as in the past, so that the problem of poor adhesion to changes in environmental conditions can be solved. And the core and coil body can be fixed and the core and coil body can be positioned at the same time. In addition, the coil is protected by molding to improve environmental resistance. Found that can Rukoto, the present invention has been completed.

That is, a coil component holder according to the present invention is a coil component holder in which a pair of cores is attached to a coil body having a molded portion, and the pair of cores of the coil component are sandwiched by a spring force. A core fixing portion made of a spring member for fixing, and a coil main body fixing portion made of a spring member for fixing the pair of cores fixed by the core fixing portion to the coil main body, wherein the core fixing portion is It has a core fixing side composed of three continuous sides having a U-shaped cross section and a core fixing piece continuously provided at both ends of the core fixing side, and two of the three sides of the core fixing side facing each other The coil body fixing portion is continuously provided on one of the two side edges of the core fixing side, and the mold portion is formed at an end of the coil body. A flange having a seating surface facing the intermediate portion of the main body and surrounding the periphery of the coil main body, and the one side of the core fixing side including the seating surface of the mold portion and the three sides; The end faces of the edges are opposed to each other, and each of the coil body fixing portions is extended to the back surface of the seat surface of the mold portion across the side of the mold portion, and the extended ends are brought closer to each other. And the tip of the bent coil body fixing portion is pressed against the back surface of the seating surface of the mold portion by a spring force acting on the coil body fixing portion, so that the seating surface of the mold portion and the three sides The core fixing side is formed so as to be brought into pressure contact with the end surface of the one side edge of the core fixing side.

In a preferred embodiment of the present invention, there is provided a holder for a coil component having a pair of cores attached to a coil body having a molded portion, the holder being for holding and fixing the pair of cores of the coil component by a spring force. A core fixing portion made of a spring member, and a coil body fixing portion made of a spring member for fixing the pair of cores fixed by the core fixing portion to the coil body, wherein the core fixing portion has a U-shaped cross section. A core fixing side composed of three continuous sides, a core fixing piece continuously provided at both ends of the core fixing side, and a sub-core fixing piece formed by cutting the core fixing side in a U-shape. Then, the pair of cores is sandwiched and fixed by a spring force acting on the core fixing piece and the sub-core fixing piece, while the coil main body fixing portion moves the coil main body fixing side and the coil main body fixing piece. The fixed side of the coil body is continuously protruded from the fixed side of the core. The fixed side of the fixed side of the coil body is connected to the tip of the fixed side of the coil body and is branched to both sides from the end to fix the fixed pieces of the coil body. The core fixing side having the side protruding may be provided so as to be substantially parallel to a length direction of the core fixing side, and the coil body fixing piece may be pressed against the mold portion by a spring force acting thereon.

[0008]

According to the first aspect of the present invention, the core fixing portion of the holder fixes the core and the core by its spring force, and the coil body fixing portion provided continuously with the core fixing portion has the core by the spring force. And the coil main body are fixed, and the core and the coil main body are simultaneously positioned. Both the fixing between the core and the core and the fixing between the core and the coil body are performed by a spring force, which is a physical force, so that the fixing can be performed with respect to a change in environmental conditions and a somewhat poor dimensional accuracy of the holder. The reliability of the coil component is improved without rattling. In addition, the position where the core is fixed to the coil body by the core fixing portion of the holder and the position where the coil body fixing portion is pressed against the mold portion by the coil body fixing piece are directions along the direction in which the core fixing portion clamps the core due to vibration or the like. Even if it is relatively displaced from the original position, the direction in which the core is held by the spring force of the core fixing portion and the direction of pressing against the back surface of the mold portion by the spring force of the coil body fixing portion are substantially orthogonal, Both spring forces do not affect each other. For this reason, the pressing force of the coil body fixing portion to the back surface of the mold portion and the core holding force of the core fixing portion are sufficiently ensured.

The molding part is composed of an upper mold and a lower mold in which the upper and lower winding parts of the coil of the coil body are molded together with the bobbin part, and the coil body fixing part applies a spring force to this molding part. Fix the core to the coil body. In addition, it is generally easy to form the coil body fixing portion continuously from the core fixing portion so as to protrude toward the mold portion, and by doing so, it is difficult to form a mold portion having a complicated shape. It can be formed into a simple shape. Further, since the coil body fixing portion is continuously provided on one of the two side edges of the two core fixing sides facing each other out of the three core fixing sides, the spring force of the coil body fixing portion is provided. Acts uniformly over substantially the entire core fixing side.

[0010] The seating surface of the mold portion and the end surface of the one side edge of the core fixing side composed of the three sides may face each other,
Further, each of the coil body fixing portions extends across the side of the mold portion to the back surface of the seat surface of the mold portion, and the extended ends are bent so as to approach each other, and this bent portion is bent. The distal end of the coil body fixing portion is pressed against the back surface of the seating surface of the mold portion by a spring force acting on the coil body fixing portion, and the one of the core fixing side including the seating surface of the mold portion and the three sides is pressed. Since the end face of the side edge is pressed against the end face of the side, the core fixing side is stably fixed to the mold section by the end face of the side edge being pressed against the seat surface of the mold section.

According to the second aspect of the present invention, the spring force acting on the mold portion from the coil main body fixing piece can be appropriately selected only by appropriately changing the length of the coil main body fixing piece. In addition, the position where the core is fixed to the coil body by the core fixing portion of the holder and the position where the coil body fixing portion is pressed against the mold portion by the coil body fixing piece are directions along the direction in which the core fixing portion clamps the core due to vibration or the like. The core fixing piece and the sub-core fixing piece and the coil body fixing piece can be sufficiently elastically deformed even if they are displaced relative to their original positions, so that the spring force acting on the core and the mold portion can be sufficiently held. In addition, the pressing force of the coil body fixing portion to the mold portion and the holding force of the core by the core fixing portion are sufficiently ensured. Also, since the sub-core fixing piece is formed by cutting out the core fixing side in a U-shape, members can be saved despite the provision of the sub-core fixing piece in addition to the core fixing piece,
The weight and cost of the holder can be reduced accordingly.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. In order to use the holder of the present invention, first, the upper and lower portions of the coil body 4 are molded to form an upper mold 10.
a and a lower mold 10b (see FIG. 1B),
Next, for example, the EE cores 6a and 6b are
The coil component 13 is formed by inserting the coil body 4 and the cores 6a and 6b by inserting the coil body 13 into the intermediate portion 12 between the lower mold 10a and the lower mold 10b (see FIGS. 1B and 1C). In this state, attach the holder. The lower mold 10b is formed with an engaging groove 14 with which a coil body fixing portion of a holder described later is engaged (in the case of the holder of the first example).

A first example of a holder 16 which is adapted to this.
2 has a structure as shown in FIG. 2A, and includes a core fixing portion 18 and coil body fixing portions 20a and 20b provided continuously with the core fixing portion 18. The core fixing portion 18 includes three core fixing sides 22a, 22b, and 22c each having a continuous U-shaped cross section, and core fixing sides 22a and 22c.
And the core fixing pieces 24a and 24b provided continuously at the ends. The angles formed by the respective core fixing sides are substantially perpendicular to each other, and the angles formed by the core fixing sides 22a and the core fixing pieces 24a and between the core fixing sides 22c and the core fixing pieces 24b are formed to be slightly acute. Further, the coil body fixing portions 20a, 20
“b” is provided in a substantially L-shaped cross section continuously from substantially the center of the core fixing sides 22a and 22c downward.

Next, the holder 16 is attached to the coil component 13 in which the EE core is combined with the coil body in which the upper mold and the lower mold are formed (FIG. 2).
(B)). Core fixing side 22 composed of three sides of holder 16
a, 22b, 22c and the core fixing pieces 24a, 24b fix the core 6a and the core 6b by the spring force,
The coil body fixing portions 20a and 20b of the holder 16 are engaged with the L-shaped engagement grooves 14 formed on the side of the lower mold 10b. The lower mold 10b and the cores 6a, 6b are fixed by the spring force of the coil body fixing portions 20a, 20b, which are located on the back surface of the seating surface 11a facing the portion 12. This situation is shown in FIGS. 2 (c) and 2 (d).
FIG. 2C is a central horizontal end view of FIG. 2B, in which the core fixing sides 22a, 22b, 22c and the core fixing pieces 24a,
It can be seen that the EE cores 6a, 6b are securely fixed by the spring force of 24b. FIG. 2D is a cross-sectional view at the center of FIG. 2B, and it can be seen that the coil body fixing portions 20a and 20b securely fix the lower mold 10b by its spring force.

Further, since the coil body fixing portions 20a and 20b are continuously provided on the two core fixing sides 22a and 22c facing each other among the three sides of the core fixing sides 22a, 22b and 22c, the coil body fixing portions 20a and 20b are fixed. Parts 20a, 20
b acts uniformly over substantially the whole of the core fixing sides 22a, 22b, 22c, and the core fixing sides 22a, 22b, 22c.
a, 22b, 22c are attached to the lower mold 10
It acts so as to be pressed against the seat surface 11a of b. Therefore, even if the coil component 13 is vibrated and the core fixing sides 22a, 22b, 22c of the holder 16 are displaced in a direction away from the bearing surface 11a of the lower mold 10b, the springs of the coil body fixing portions 20a, 20b are displaced. By the action of the force, it is returned to the original state (the state in which the end surfaces of the lower edges of the core fixing sides 22a, 22b, 22c are pressed against the bearing surface 11a of the lower mold 10b). As a result, the core fixed side 22a,
22b, 22c are stably fixed to the lower mold 10b by constantly pressing the end surface of the lower edge thereof to the seating surface 11a of the lower mold 10b.
The cores 6a, 6b fixed by the core fixing pieces 24a, 24b and the core fixing pieces 24a, 24b are securely fixed to the lower mold 10b.

Further, fixing positions of the cores 6a and 6b with respect to the coil body 4 by the core fixing portion 18 of the holder 16,
The press-contact position of the bent tip portions of the coil body fixing portions 20a and 20b against the lower mold 10b is relatively shifted from the original position in the direction along the holding direction of the cores 6a and 6b by the core fixing portion 18 due to vibration or the like. However, the direction in which the cores 6a and 6b are held by the spring force of the core fixing portion 18 and the direction in which the lower mold 10b is pressed against the back surface by the spring force of the coil body fixing portions 20a and 20b are substantially orthogonal.
Both spring forces do not affect each other. Therefore, the pressing force of the coil body fixing portions 20a and 20b against the back surface of the lower mold 10b and the holding force of the cores 6a and 6b by the core fixing portion 18 are sufficiently ensured. As a result, the cores 6a, 6b are securely clamped and fixed by the core fixing sides 22a, 22b, 22c and the core fixing pieces 24a, 24b, and are surely fixed to the lower mold 10b by the coil body fixing portions 20a, 20b.

Next, a modified example (second example) of the holder of the present invention is shown in FIG. The holder 34 of the second example has a structure as shown in FIG. 3A, and includes a core fixing portion 18 and a coil body fixing portion 36 provided continuously to the core fixing portion 18. The core fixing portion 18 has three core fixing sides 22a, 22b, and 22c each having a continuous U-shaped cross section.
And core fixing pieces 24a, 24b provided continuously at the ends of the core fixing sides 22a, 22c. The angles formed by the respective core fixing sides are substantially right angles, and the core fixing sides 22a are formed.
The point that the angle formed between the core fixing piece 24a and the core fixing side 22c and the core fixing piece 24b is slightly acute is the same as in the case of the holder of the first example. The core fixing side 22b facing the two core fixing pieces 24a and 24b is cut into two U-shaped and inverted U-shaped two-core fixing pieces 2a.
4c and 24d are formed, and the sub-core fixing pieces 2 are formed slightly inside the bent portions 38a and 38b with respect to the surface of the core fixing side 22b.
4c and 24d are bent. And the core fixed side 22
b, the coil main body fixed side 4
0 and coil body fixing pieces 42 formed at both left and right ends thereof
a, an inverted T-shaped coil body fixing portion 36 composed of a and 42b. The coil main body fixing pieces 42a and 42b project substantially in parallel with the length direction of the core fixing side 22b where the coil main body fixing side 40 protrudes, and from the bent portions 44a and 44b to the coil main body fixing side 40 surface. Fold it slightly inward.

FIG. 3B shows a state in which the holder 34 is attached to the coil component 13 in the same manner as described above. Core fixing sides 22a, 22b, 22 formed of three sides of holder 34
c and the core fixing pieces 24a, 24b, the sub core fixing pieces 24c,
The core 6a and the core 6b are fixed by the spring force of 24d, and the lower mold 10b is fixed by the spring force of the coil body fixing side 40 and the coil body fixing pieces 42a and 42b. Is fixed. This situation is shown in FIG. 3 (c) as a central horizontal end view of FIG. 3 (b), and FIG. 3 (d) as a horizontal end view of the coil body fixing portion of FIG. 3 (b).

According to the holder 34 of the second example, the coil body fixing pieces 42a, 42a, 42b are continuously connected to the left and right ends of the coil body fixing side 40 formed continuously from substantially the center of the core fixing side 22b. 42b projecting substantially parallel to the length direction of the core fixing side 22b, the coil body fixing pieces 42a,
The spring force acting on the lower mold 10b from the coil body fixing pieces 42a, 42b can be appropriately selected only by appropriately changing the length of the coil 42b. In addition, the holder 34
The coil body 4 of the cores 6a and 6b by the core fixing portion 18 of FIG.
And the position of the coil body fixing portion 36 pressed against the lower mold 10b by the coil body fixing pieces 42a, 42b in the direction along the direction in which the core fixing portions 18 sandwich the cores 6a, 6b due to vibration or the like. , The core fixing pieces 24a, 24b and the sub core fixing pieces 24c, 24d and the coil body fixing pieces 42a, 4
2b can sufficiently retain the spring force acting on the cores 6a, 6b and the lower mold 10b by elastic deformation.
For this reason, the coil body fixing portion 3 to the lower mold 10b
6 and the cores 6a and 6b by the core fixing portion 18.
Is sufficiently secured. Also, the auxiliary core fixing piece 24
Since the core fixing sides c and 24d are formed by cutting the core fixing sides in a U-shape, members can be saved even though the sub core fixing pieces 24c and 24d are provided in addition to the core fixing pieces 24a and 24b. Thus, the weight and cost of the holder 34 can be reduced.

In the figure, the case where the coil body fixing portion 36 is provided continuously to the core fixing side 22b is shown, but the other core fixing side 22a and / or the core fixing side 22c are provided.
May be provided continuously. Alternatively, these coil main body fixing portions 36 are provided continuously above the core fixing side for fixing the upper mold 10a, and the coil main body fixing pieces 42a, 4
2b may be pressed against the outer peripheral side surface 11b of the upper mold 10a. Also, the auxiliary core fixing piece 24
Although the case where c and 24d are formed on the core fixed side 22b is shown, the other core fixed side 22a and / or the core fixed side 22c
May be formed. When the holder 34 of the second example shown in FIG. 3 is used, since the coil main body fixing portion 36 does not engage with the upper mold portion 10a, the form of the upper mold portion does not matter. Although an outer shape smaller than the outer size of the combination of the cores is shown (in the first example, the form of the mold portion where the coil body fixing portion does not engage is arbitrary), but the coil body is fixed for upper mold fixing. When the part is provided above the core fixed side,
The upper mold is formed to have the same outer shape as the outer size obtained by combining the EE cores.

In each of the above examples, it is generally easy to form the coil main body fixing portion so as to be continuous with the core fixing portion 18 and protrude toward the mold portion, so that a complicated shape is formed. This makes it possible to mold the mold portion, which is difficult to perform, into a simple shape, and to manufacture the coil component 13 at low cost. In addition, since the upper and lower molds mold the upper and lower parts of the coil body including the bobbin, if the core and the upper mold and / or the lower mold are fixed with a holder, the core and the coil body are securely fixed. it can. In each of the holders described above, the coil body fixing portion is provided for fixing the lower mold, but may be provided above the core fixing portion for fixing the upper mold.

According to the holder in each of the above examples, the fixing between the core and the core and the fixing between the core and the coil body are surely fixed by the physical spring force of the holder, so that the holder can withstand the environmental conditions of the coil component used. If the holder is made of a material (such as a metal such as stainless steel or a high-strength plastic material), the reliability of the coil component can be ensured for a long period of time. Further, since the mold portion of the coil main body and the core are fixed at the same time, rattling between the core and the coil main body is prevented, and the core and the coil main body can be reliably positioned.

Further, if the upper surface of the upper mold or the lower surface of the lower mold is formed in a flat shape, the coil components can be easily attracted by, for example, vacuum suction when they are mounted, which contributes to automation of component mounting and is useful. Furthermore, since the coil body is protected by the upper mold and the lower mold with respect to the winding portion of the coil, it is less susceptible to the external environment, and there is a possibility that the performance of the coil component will be degraded even for long-term use. Low. When the holder of the present invention is used, the process of molding the upper mold and the lower mold on the coil body is added, so that the manufacturing cost of the coil component is slightly increased, but the conventional processes of bonding, varnishing, and fixing the tape are eliminated. The provision of the mold portion is advantageous because the advantages of being able to reduce the influence of a change in the external environment of the coil portion and of contributing to the automatic mounting of the coil component are great. In order to protect the winding portion of the coil, it is preferable to form an upper mold and a lower mold, but in some cases, only one of the upper mold and the lower mold may be formed.

In each of the above examples, a coil component in which an EE core is combined with a coil body in which the upper and lower parts are molded has been described as an example, but other EI cores, ER cores, EER cores,
When using EED cores and UI cores, the state where these cores are combined with the molded coil body is shown in FIG.
Since it is the same as that shown in (c), the holder shown in each of the above examples (first and second examples) can be used in the same manner as above.

[0025]

As is apparent from the above description, according to the first aspect of the present invention, the core fixing portion fixes the core of the coil component,
The coil body fixing part provided continuously to the core fixing part fixes the coil body by the spring force, which is a physical force, so that no adhesive is used and even if the dimensional accuracy of the holder is somewhat poor Since the core and the coil body can be securely fixed, the problem of poor adhesion to changes in environmental conditions can be solved, and the core and the coil can be fixed together and the core and the coil body can be fixed without rattling, and the core and the coil can be fixed. Positioning with the main body can be performed at the same time. In addition, the position where the core is fixed to the coil body by the core fixing portion of the holder and the position where the coil body fixing portion is pressed against the mold portion by the coil body fixing piece are directions along the direction in which the core fixing portion clamps the core due to vibration or the like. Even if it is relatively displaced from the original position, the direction in which the core is held by the spring force of the core fixing portion and the direction of pressing against the back surface of the mold portion by the spring force of the coil body fixing portion are substantially orthogonal, Both spring forces do not affect each other. For this reason, the pressing force of the coil body fixing portion to the back surface of the mold portion and the core holding force of the core fixing portion are sufficiently ensured.

Furthermore, the coil can be protected by the molded portion to improve the environmental resistance, which contributes to the easy mounting of the coil component. In addition, it is generally easy to form the coil body fixing portion continuously from the core fixing portion so as to protrude toward the mold portion, and by doing so, it is difficult to form a mold portion having a complicated shape. It can be formed into a simple shape, and the coil component can be manufactured at low cost.

Further, since the coil body fixing portion is continuously provided on either one of the two sides of the two core fixing sides facing each other out of the three core fixing sides, the coil body fixing portion is provided. Spring force acts uniformly over substantially the entire core fixing side. Further, the seating surface of the mold portion and the end surface of the one side edge of the core fixing side composed of the three sides face each other, and the coil body fixing portions are traversed laterally of the mold portion to form the mold. The end of the bent coil body fixing portion is extended by a spring force acting on the coil body fixing portion. The core fixed side is pressed against the back surface of the seating surface of the mold portion, so that the seating surface of the mold portion and the end surface of the one side edge of the core fixed side including the three sides are pressed against each other. The end surface of the side edge is pressed into contact with the seating surface of the mold portion, so that it is stably fixed to the mold portion.

According to the second aspect of the present invention, the spring force acting on the mold portion from the coil body fixing piece can be appropriately selected only by appropriately changing the length of the coil body fixing piece. In addition, the position where the core is fixed to the coil body by the core fixing portion of the holder and the position where the coil body fixing portion is pressed against the mold portion by the coil body fixing piece are directions along the direction in which the core fixing portion clamps the core due to vibration or the like. The core fixing piece and the sub-core fixing piece and the coil body fixing piece can elastically deform and retain a sufficient spring force acting on the core and the mold part even if the relative displacement from the original position is relatively large. The pressing force of the coil body fixing portion to the mold portion and the holding force of the core by the core fixing portion are sufficiently ensured. Also, since the sub-core fixing piece is formed by cutting out the core fixing side in a U-shape, members can be saved despite the provision of the sub-core fixing piece in addition to the core fixing piece, and the holder is lightened accordingly. Cost and cost can be reduced.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a coil component in which an EE core is combined with a coil body in which an upper mold and a lower mold are formed.

FIG. 2 is an explanatory view showing a structure of a holder of the first example and a state where the holder is attached to a coil component.

FIG. 3 is an explanatory view showing a structure of a holder according to a second example and a state where the holder is attached to a coil component.

FIG. 4 is an explanatory view of the structure of a conventional closed magnetic circuit type coil component.

[Explanation of symbols]

 Reference Signs List 4 Coil main body 6a EE core 6b EE core 10a Upper mold 10b Lower mold 11a Seat 13 Coil component 16 Holder of first example 18 Core fixing part 20a Coil main part fixing part 20b Coil main part fixing part 22a Core fixing side 22b Core fixing side 22c Core fixed side 24a Core fixed piece 24b Core fixed piece 24c Secondary core fixed piece 24d Secondary core fixed piece 34 Holder of second example 36 Coil main body fixed part 40 Coil main body fixed side 42a Coil main body fixed piece 42b Coil main body fixed piece

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-6-132129 (JP, A) JP-A-3-57903 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) H01F 27/24-27/26

Claims (2)

(57) [Claims] 1. A holder for a coil component having a pair of cores attached to a coil body having a molded portion, the core comprising a spring member for holding and fixing the pair of cores of the coil component by a spring force. a fixed portion composed of a coil body fixing portion made of a spring member for fixing the pair of core fixed by the core fixing portion in a U-yl body, said core securing portion continuous U-shaped cross section 3 A core fixing side composed of two sides and a core fixing piece continuously provided at both ends of the core fixing side, and the two sides of the two core fixing sides facing each other among the three sides of the core fixing side While continuously protruding the coil body fixing portion on either one side, the mold portion is attached to the coil body.
The coil is formed at the end and faces the middle of the coil body.
Flange with a seating surface formed around the body
And the bearing surface of the mold portion and the end surface of the one side edge of the core fixing side composed of the three sides face each other , and
Cross each coil body fixing part across the side of the mold part
And extended to the back surface of the seat surface of the mold portion,
Bend the extended ends so that they approach each other.
The tip of the coil body fixing part is attached to the coil body fixing part.
On the back surface of the seat surface of the mold part by the spring force used
Pressing and pressing, the seat consisting of the seat surface of the mold part and the three sides
A so that the fixed side is pressed against the end face of the one side edge.
Formed by the holder of the coil component. 2. A coil component holder having a pair of cores attached to a coil body having a molded portion, the core comprising a spring member for clamping and fixing the pair of cores of the coil component by a spring force. a fixed portion composed of a coil body fixing portion made of a spring member for fixing the pair of core fixed by the core fixing portion in a U-yl body, said core securing portion continuous U-shaped cross section 3 A core fixing side composed of sides , a core fixing piece continuously provided at both ends of the core fixing side, and a cutout of the core fixing side in a U-shape.
Core fixing pieces formed by
And the pair by a spring force acting on the secondary core solid Johen
The coil body fixing portion has a coil body fixing side and a coil body fixing piece, and the coil body fixing side is continuously protruded from the core fixing side to fix the coil body. each of said coils to said coil body fixing piece is branched into both sides from the tip with continuous from the leading end sides
The main body fixing side is protruded, and the core fixing side is substantially flat in the length direction.
A spring protruding from the row and acting on the coil body fixing piece
A coil component holder that is pressed against the mold section by force .