JPH0686307U - Inductance parts - Google Patents

Abstract

(57) [Summary] [Purpose] To provide an inductance component that can be connected to a lead wire in advance and has excellent workability, an extremely simple structure, low cost, mass productivity, and excellent productivity. [Structure] A pair of split type ferrite cores 10a and 10b
Which is an inductance component having one or more fitting holes 11 formed on the outer surface of each split-type ferrite core 10a, 10b, and the split-type ferrite cores 10a, 10b fitted into the fitting hole 11 And a sandwiching tool 12 made of an elastic body that sandwiches and holds the core 10 formed by the above.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an inductance component used in a television receiver or the like.

[0002]

[Prior art]

 In recent years, with the increase in digital devices, regulations on EMI such as prevention of noise generation and influence of harmonics on others have been emphasized, and inductance components are widely used as a countermeasure.

A conventional inductance component will be described below. FIG. 4A is a perspective view showing a usage example of a conventional sleeve-shaped inductance component, and FIG. 4B is a perspective view showing another usage example of a conventional sleeve-shaped inductance component. Reference numeral 1 is a sleeve core made of a ferrite and having a cylindrical hollow portion 2. Reference numeral 3 is a lead wire made of a pair of or a single power supply line and a signal line and inserted into the hollow portion 2 of the sleeve core 1 once. In FIG. 4 (b), reference numeral 4 denotes a lead wire which is inserted into the hollow portion 2 of the sleeve core 1 similar to the lead wire 3 and then wound around the sleeve core 1 and inserted again into the hollow portion 2.

A method of using the conventional sleeve-shaped inductance component configured as described above will be described below. By inserting a pair of power supply lines and signal lines as lead wires 3 and 4 into the sleeve core 1, it is possible to prevent the influence of noise from other devices. Further, by individually forming the pair of power supply lines and the signal lines as the lead wires 3 and 4 and inserting the lead wires 3 and 4 into different sleeve cores 1, it is possible to prevent noise from being generated. Here, when connectors (not shown) are tangent to both ends of the lead wires 3 and 4, after inserting the lead wires 3 and 4 into the sleeve core 1 in advance, the connectors (not shown) are connected to the lead wires 3 and 4. It was crimped to 4.

FIG. 5 is a perspective view of a conventional split type inductance component. 5a and 5b are a pair of split type ferrite cores which are arranged to face each other to form a cylindrical core (not shown), 6a and 6b are cases for storing the split type ferrite cores 5a and 5b, and 7 is A hinge portion that connects the pair of cases 6a and 6b in a bendable manner, and 8 is an engagement portion that engages with an engaging protrusion 9 formed on the case 6b to abut the pair of split-type ferrite cores 5a and 5b so as to face each other. It is a department.

A method of using the conventional split type inductance component configured as described above will be described below. In the conventional split type inductance component, a lead wire (not shown) is arranged on one of the split type ferrite cores 5b, then the hinge portion 7 is bent, and the engaging portion 8 is engaged with the engaging protrusion 9. Then, the pair of split type ferrite cores 5a and 5b are opposed to each other and brought into contact with each other to form a core (not shown), which can be used in the same manner as a conventional sleeve-shaped inductance component. Here, when a connector (not shown) is tangentially connected to both ends of the lead wire (not shown), since the split type ferrite cores 5a and 5b are separable, the lead wire (not shown) is first. After crimping a connector (not shown) to the (not shown), a lead wire (not shown) can be inserted between the split-type ferrite cores 5a, 5b.

[0007]

[Problems to be solved by the device]

 However, in the conventional configuration described above, in the conventional sleeve-shaped inductance component, the sleeve core is integrally formed, and therefore, when the connectors are connected to both ends of the lead wire, the lead wire is inserted through the sleeve core in advance. However, the connector has to be crimped, and the connector crimping work is difficult, requiring skill and lacking workability. On the other hand, the conventional split-type inductance component requires a pair of split-type ferrite cores, as well as a case and an engaging portion, which makes the structure complicated and lacks mass productivity, and also increases cost and lacks productivity. Had the problem.

The present invention solves the above-mentioned problems of the related art, and the connector can be connected to the lead wire in advance, which is excellent in workability, has an extremely simple structure, is low in cost, and is mass producible and productive. It is an object of the present invention to provide an extremely excellent inductance component.

[0009]

[Means for Solving the Problems]

 In order to achieve this object, the inductance component according to claim 1 of the present invention is an inductance component including a pair of split ferrite cores, and the inductance component is formed on the outer surface of each split ferrite core. It has a configuration including the above fitting hole, and a clamp made of an elastic body that clamps and holds a core formed by combining the split type ferrite cores, which is fitted in the fitting hole. The inductance component according to claim 2 is an inductance component including a pair of split-type ferrite cores, and a groove portion formed in a direction perpendicular to a contact surface of the split-type ferrite core, At least two or more shift preventing holes formed on the outer surface of the split ferrite core, an engaging portion that is fitted in the groove portion and engages with an end portion of the groove portion, and the hole portion is fitted. Displacement prevention collision It has a clamping device which the core is formed and coalescing the split ferrite core has a section made of an elastic body for holding clamping, the arrangement having a.

Here, the external shape of the inductance component may be a substantially cylindrical shape, a substantially polygonal pillar shape, or the like. As the elastic body, metal, synthetic resin or the like is preferably used. Further, it is preferable to provide a bent portion that is bent at a substantially right angle in at least one of the portions that fit into the fitting holes of the fastener so that the fastener can be prevented from falling off. In addition, it is preferable to bend the portion of the fastener that fits in the groove and to extend the portion when the fastener is mounted, because the clamping force of the fastener increases.

[0011]

[Action]

 With this configuration, fitting holes are formed in the pair of split-type ferrite cores, and the fastener fits in the fitting holes, and the pair of split-type ferrite cores are detachably sandwiched to hold the cores. In order to form, the pair of split-type ferrite cores are separated by removing the sandwiching tool, and the lead wire to which the connector is previously connected can be easily arranged. In addition, since the sandwiching tool has an extremely simple structure, it can be manufactured easily and at low cost.

Further, a plurality of groove portions are formed in the pair of split type ferrite cores, and the fastener is fitted into the groove portions, and the engaging portion formed in the fastener is engaged with the end portion of the groove portion. At the same time, by fitting the deviation prevention protrusions into the holes formed in the split ferrite cores, the pair of split ferrite cores are firmly held and held by the fasteners, and the pair of split ferrite cores are held. It is possible to prevent misalignment between cores and stabilize various characteristics of the inductance component.

[0013]

【Example】

 (First Embodiment) An inductance component according to a first embodiment of the present invention will be described below with reference to the drawings. FIG. 1 (a) is an exploded view of an inductance component according to one embodiment of the present invention, FIG. 1 (b) is a cross-sectional view of the inductance component according to one embodiment of the present invention, and FIG. It is an exploded view showing a modification of an inductance part in an example. 10a and 10b are a pair of split-type ferrite cores that are arranged facing each other to form a cylindrical core 10, 11 is a fitting hole formed on the outer surface of the split-type ferrite cores 10a and 10b, and 12 is a metal. , A sandwiching tool for sandwiching and holding the pair of split type ferrite cores 10a, 10b made of an elastic body such as synthetic resin, and 13 are fitting holes formed at both ends of the sandwiching tool 12. Reference numeral 13a denotes a fitting protrusion that fits with 11, and a bending portion that is formed on the fitting protrusion 13 and that prevents a substantially right-angled holding tool 12 from falling off. In FIG. 2, 14a and 14b are a pair of split-type ferrite cores that are arranged so as to face each other to form a hexagonal column-shaped core 14, and 15 is a pair of split-type ferrite cores 14a and 14b similar to the sandwiching tool 12. It is a sandwiching tool formed according to the shape of.

Here, as shown in FIG. 1 (b), since the bent portion 13 a engages with the wall portion of the fitting hole 11, it is possible to prevent the clamp 12 from falling off. Further, as shown in FIG. 2, even when the outer shape of the core 14 is a substantially polygonal shape, the pair of split-type ferrite cores 14a and 14b are similarly sandwiched and held only by deforming the shape of the sandwiching tool 15. can do.

The method of using the inductance component according to the embodiment of the present invention constructed as above will be described below. First, a lead wire (not shown) is inserted into one of the split ferrite cores 10a once or a plurality of times. Here, a connector (not shown) may be connected to the lead wire (not shown) in advance. Next, the other split-type ferrite core 10b is disposed so as to face the split-type ferrite core 10a, and the sandwiching tool 12 is sandwiched from the direction perpendicular to the longitudinal direction of the pair of split-type ferrite cores 10a and 10b. The fitting projection 13 is fitted into the fitting hole 11, and the pair of split ferrite cores 10a and 10b are held by the holding tool 12 to form the core 10 to complete the inductance component.

In this embodiment, one fitting hole 11 is formed for each of the split-type ferrite cores 10a, 10b, but there are a plurality of fitting holes 11, and the clamping tool 12 is provided in accordance with the number thereof. The fitting protrusion 13 may be formed. As a result, it is possible to prevent a deviation or the like from occurring between the split-type ferrite cores 10a and 10b.

(Second Embodiment) An inductance component according to a second embodiment of the present invention will be described below with reference to the drawings. FIG. 3A is an exploded view of the inductance component according to the second embodiment of the present invention, and FIG. 3B is a sectional view of the inductance component according to the second embodiment of the present invention. 16a and 16b are a pair of split-type ferrite cores that are arranged to face each other to form a quadrangular prism-shaped core 16. 17 is a pair of split-type ferrite cores 16a and 16b. Grooves, 18 are four holes formed on the outer surfaces of the split-type ferrite cores 16a, 16b, and 19 are a pair of split-type ferrite cores 16a, 1 made of an elastic material such as metal or synthetic resin. 6a is a sandwiching tool for sandwiching and holding them, 20 is four sandwiching parts formed at both ends of the sandwiching tool 19 and fitted into the groove 17, and 21 is formed at the tip of the sandwiching part 20. The engaging portion 22 is engaged with the end of the groove portion 17 of the split type ferrite core 16a to prevent the clip 19 from falling off, and 22 is fitted into the hole 18 of the split type ferrite core 16b. Split type ferrite core 16a, 16b same A shift prevention protrusion for preventing the deviation or the like occurs in the.

Here, as shown in FIG. 3A, the sandwiching portion 20 is formed by being curved, and the sandwiching portion 20 is extended when the sandwiching tool 19 is mounted as shown in FIG. 3B. It is preferable that it is set because the clamping force of the clamping device 19 is improved.

A method of using the inductance component of the second embodiment of the present invention constructed as above will be described below. The inductance component in the second embodiment of the present invention can be used in substantially the same manner as in the first embodiment.

Although the number of the groove portions 17 and the sandwiching portions 20 is four in the present embodiment, the number may be any number as long as it is two or more. Further, although the number of the hole portions 18 and the displacement prevention protrusion portions 22 is four, the number may be any number as long as it is two or more. Moreover, although the hole portion 18 is formed in the split-type ferrite core 16a, this may be omitted. Further, although the outer shape of the core 16 is a quadrangular prism, it may be a substantially polygonal column, a substantially columnar column or the like.

[0021]

[Effect of device]

 As described above, according to the present invention, the pair of split-type ferrite cores are provided with the fitting holes respectively, and the fastener is fitted into the fitting holes, so that the pair of split-type ferrite cores can be detachably held. In order to form the core, the pair of split-type ferrite cores are separated by removing the sandwiching tool, and the lead wire to which the connector is connected in advance can be easily arranged and workability is excellent. Since the garment has an extremely simple structure, it can be manufactured easily and at low cost and has excellent productivity and mass productivity. A plurality of groove parts are formed in a pair of split type ferrite cores, and they are sandwiched between these groove parts. By fitting the tool, engaging the engaging part formed on the sandwiching tool with the end of the groove, and fitting the deviation prevention protrusion to the hole formed in the split ferrite core. , A pair of split-type ferrite cores are used as clamps It is firmly sandwiched and held, and it is possible to realize a highly reliable inductance component that can prevent misalignment between a pair of split ferrite cores and stabilize the characteristics of the inductance component. Is.

[Brief description of drawings]

1A is an exploded view of an inductance component according to an embodiment of the present invention, and FIG. 1B is a sectional view of an inductance component according to an embodiment of the present invention.

FIG. 2 is an exploded view showing a modified example of the inductance component according to the embodiment of the present invention.

3A is an exploded view of an inductance component according to a second embodiment of the present invention, and FIG. 3B is a sectional view of an inductance component according to a second embodiment of the present invention.

FIG. 4A is a perspective view showing a usage example of a conventional sleeve-shaped inductance component, and FIG. 4B is a perspective view showing another usage example of a conventional sleeve-shaped inductance component.

FIG. 5 is a perspective view of a conventional split-type inductance component.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sleeve core 2 Hollow part 3,4 Lead wire 5a, 5b Split type ferrite core 6a, 6b Case 7 Hinge part 8 Engaging part 9 Engaging protrusion 10 Cores 10a, 10b Dividing type ferrite core 11 Fitting hole 12 Clamping Tool 13 Fitting projection 13a Bending part 14 Core 14a, 14b Split type ferrite core 15 Clamping tool 16 Core 16a, 16b Split type ferrite core 17 Groove 18 Hole 19 Clamping tool 20 Clamping part 21 Engaging part 22 Displacement Prevention protrusion

Claims (2)

[Scope of utility model registration request] 1. An inductance component comprising a pair of split-type ferrite cores, wherein one or more fitting holes formed on the outer surface of each split-type ferrite core are fitted into the fitting holes. And a sandwiching tool made of an elastic body that sandwiches and holds a core formed by uniting split ferrite cores. 2. An inductance component having a pair of split-type ferrite cores, the groove being formed in a direction perpendicular to the contact surface of the split-type ferrite core, and the outer surface of the split-type ferrite core. The divided portion having at least two or more deviation preventing holes, an engaging portion that is fitted into the groove portion and engages with an end portion of the groove portion, and a deviation preventing protrusion portion that fits into the hole portion. And a sandwiching tool made of an elastic body that sandwiches and holds a core formed by combining type ferrite cores.