JP4929502B2 - Manufacturing method of electrical parts - Google Patents

Description

  The present invention relates to a method for manufacturing an electrical component in which a connector portion is integrally formed in a case that stores electrical components such as a capacitor element and a resistor.

An electrical component in which a connector portion is formed integrally with a case containing an electrical component such as a capacitor element is known (see, for example, Patent Document 1 and Patent Document 2). The electrical component of Patent Document 1 connects a pair of connection terminals to a capacitor element, inserts the connection terminal into a lead-out opening provided at the bottom of the case, leads out of the case, and fills the case with resin. Of structure. In addition, in the electrical component disclosed in Patent Document 2, the case is configured separately on the case body opened on both sides and the both side walls thereof, and the connection terminals are press-fitted on both side walls, and both side walls are attached to the case body. The capacitor element is connected to the connection terminal and filled with resin.
Japanese Patent Laid-Open No. 2002-83735 Japanese Utility Model Publication No. 2-29706

  By the way, as for the said conventional electrical components, as for all, the connection terminal is pulled out from the lead-out opening part provided in the case bottom part or the case side wall. In these conventional examples, it is a single connection terminal that is pulled out from each lead-out opening, but the connection terminal is usually of low rigidity. Therefore, when pulling out the connection terminal from the lead-out opening, careful attention is required to prevent the bending and deformation of the connection terminal, and a lot of work is required for the pull-out operation. In particular, in the conventional example of Patent Document 2, since the connection terminal is press-fitted into the lead-out opening, the press-fitting work requires great care and a great deal of work. In addition, even if it is intended to improve the convenience by pulling out a large number of connection terminals, it is necessary to individually pull out the corresponding number of connection terminals. Therefore, if it is attempted to respond to such a request, a significant cost increase will be caused. It was supposed to be.

  The present invention has been made to solve the above-mentioned conventional drawbacks, and its purpose is to greatly improve the workability when pulling out the connection terminal from the case, and thus to greatly reduce the manufacturing cost. Another object of the present invention is to provide a method for manufacturing an electrical component. It is also an object of the present invention to provide a method for manufacturing an electrical component that can draw out a large number of connection terminals without increasing the cost as in the prior art.

Therefore, the method of manufacturing an electrical component according to the present invention is a method of manufacturing an electrical component in which the electronic components 2 and 3 are housed in the case 1 configured by attaching the connector portion 4 to the case body 11 and filled with resin. A plurality of connection terminals 21 connected by the connection part 22 are press-fitted into the opening 8 formed in the mounting wall surface 6 of the connector part 4, and among the end faces of the connection part 22 on the extending side of the connection terminal 21, By causing both end portions projecting to the terminal 21 side and the mounting wall surface 6 to contact each other, a gap S is formed between the end surface located between the both end portions and the mounting wall surface 6. In this state, a slit passing through the gap S The connection terminal 21 is electrically independent by separating the connection portion 22 by forming the connection portion 22, and the independent connection portion 22 is used as a joint portion 25 for connecting the electronic components 2 and 3. It is characterized by .

  Further, the electrical component manufacturing method is characterized in that after the connecting portion 22 is separated into the joint portion 25, the joint portion 25 is bent.

  Furthermore, in the method for manufacturing the electrical component, the connection terminal 21 is characterized in that the press-fit portion 23 to be press-fitted into the opening 8 is formed wider than the connection portion 24 on the distal end side.

  According to the electrical component manufacturing method of the present invention, when the connection terminals 21 are press-fitted into the openings 8, the connection terminals 21 are connected to each other by the connection portions 22. Therefore, since the rigidity of the press-fitted portion 23 is higher than the conventional one, the workability when pulling out each connection terminal 21 from the case 1 is improved, and the manufacturing cost can be reduced. In addition, since the plurality of connection terminals 21 are press-fitted in a single press-fitting operation, the production can be performed efficiently, and the production cost can be reduced.

  In addition, since the press-fit portion 23 is wider than the connection portion 22 in the connection terminal 21, the rigidity during press-fit is also improved in this respect.

  Next, specific embodiments of the method for manufacturing an electrical component of the present invention will be described in detail with reference to the drawings. First, a schematic configuration will be described with reference to FIG. 5. For example, the electrical component includes a capacitor element 2 and a resistor 3 in a case 1 made of PBT resin, and is filled with an epoxy resin 10. The connector portion 4 is integrally provided.

  As shown in FIG. 1, the connector part 4 is composed of a terminal member 20 and a connector case 5 (for example, made of PBT resin). As shown in FIG. 1A, the terminal member 20 includes a plurality of (in the figure, five) connection terminals 21 arranged in parallel and a flat plate-like connecting portion that integrally connects the connection terminals 21. 22. That is, the terminal member 20 is formed by punching from a flat plate, and has a shape in which a plurality of connection terminals 21 are extended in a comb shape from the connection portion 22, and each connection terminal 21 has a connection portion 22 side. The base end portion located at the end is formed as a wide press-fit portion 23, and the tip end portion located on the tip end side is formed as a narrow connection portion 24. On the other hand, as shown in FIG. 1B, the connector case 5 has a mounting wall surface 6 for attaching the terminal member 20 and a cylindrical case portion 7 surrounding each connection terminal 21, and the mounting wall surface. 6 is provided with a lead-out opening 8 into which the press-fitting portion 23 of each connection terminal 21 provided in the terminal member 20 is press-fitted. Further, the mounting wall surface 6 is provided with fitting protrusions 9 projecting from both sides and downward. The connector portions 4 are inserted in the state in which the connection portions 24 protrude into the cylindrical case portion 7 by press-fitting each press-fit portion 23 of the terminal member 20 into the lead-out opening portion 8 of the connector case 5. Is assembled. The point to be noted here is that, as shown in FIG. 1 (b), in the state where the terminal member 20 is press-fitted into the mounting wall surface 6, the end surface on the extending side of the connection terminal 21 in the connecting portion 22 and the mounting wall surface 6 are Although the two ends of the connecting portion 22 are in close contact with each other, a gap S is formed between them at the other inner side. This is because a clearance of the processing means is provided at the time of forming the slit 26 to be described next, thereby facilitating the processing.

  In the above state, as shown in FIG. 1C, a plurality of slits 26 are provided in the connecting portion 22 of the terminal member 20, and the connecting portion 22 is separated for each connection terminal 21. By this work, each connection terminal 21 is electrically separated, and the separated connecting portion 22 functions as a joint portion 25 in each connection terminal 21. In the illustrated embodiment, the connection portion 22 between the pair of connection terminals 21 and 21 is not separated, and the set of connection terminals 21 and 21 are commonly connected by the connection portion 22. ing. Then, as shown in FIG. 2, a specific bending portion 25 is subjected to a necessary bending process, and thereafter, as shown in FIG. 3 is connected by soldering or the like. The reason why the specific joining portion 25 is bent as described above is to attach the capacitor element 2 and the resistor 3 in a state where a step is provided up and down.

  As shown in FIGS. 4 and 5, the case body 11 (for example, made of PBT resin) constituting the case 1 has a substantially rectangular parallelepiped structure in which one side to which the connector portion 4 is attached is opened. The bottom wall 12, a pair of left and right side walls 13, 13 and the side wall 14 opposite to the connector portion 4 are provided. A fitting groove 15 is formed around the opening to which the connector portion 4 is attached. Then, the connector part 4 is attached to the case body 11 by fitting the fitting protrusion edge 9 of the connector part 4 into the fitting groove 15 of the case body 11. In this case, the attachment wall surface 6 of the connector portion 4 covers the side opening of the case body 11, and the case 1 is configured by the case body 11 and the attachment wall surface (case wall surface portion) 6. And as shown in FIG. 5, the epoxy resin 10 is filled in the case 1, and an electrical component is comprised.

  According to the electrical component manufacturing method, when the connection terminals 21 are press-fitted into the lead-out openings 8, the connection terminals 21 are connected to each other by the connection portions 22. Therefore, the rigidity of the press-fitted portion 23 becomes higher than before, and as a result, the workability when pulling out the connection portion 24 of each connection terminal 21 from the case 1 is greatly improved, and the manufacturing cost is greatly reduced. Is possible. In addition, since the plurality of connection terminals 21 are press-fitted in a single press-fitting operation, the production can be efficiently performed, and the production cost can be greatly reduced. Moreover, with respect to the mounting wall surface 6 formed separately from the case main body 11, the press-in operation of the connection terminal 21, the separation operation and the bending operation of the connecting portion 22, and the connection operation of electronic components such as the capacitor element 2 and the resistor 3 are performed. As a result, the working space is not limited as in the case, so that the manufacturing work efficiency can be improved in this respect as well. In addition, since the press-fit portion 23 is wider than the connection portion 22 in the connection terminal 21, the rigidity during press-fit is also improved in this respect.

  Although specific embodiments of the electrical component of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the present invention. is there. For example, in the above embodiment, the connector portion 4 is provided only on one side of the case 1, but the connector portion 4 may be provided on both sides of the case 1. In addition, the electronic component is not limited to the capacitor element 2 and the resistor 3, and various components can be used, and the number thereof is not limited to two. Furthermore, in the said embodiment, although the capacitor | condenser element 2 and the resistor 3 are connected to each terminal member 21, the connector part 4 is attached to the case main body 11, but in the state which attached the connector part 4 to the case main body 11, The capacitor element 2 and the resistor 3 may be connected to the terminal member 21.

It is a figure which shows the assembly state of the connector part in the electrical component which is embodiment of this invention, (a) is a top view before an assembly, (b) is a cross-sectional view after an assembly, (c) is isolation | separation of a connection part. FIG. It is a figure which shows the bending state of the junction part of a connection terminal in the assembly state of the connector part in the electrical component of the said embodiment, (a) is a front view which shows a part in a cross section, (b) The plane which shows a part in a cross section FIG. It is a figure which shows the assembly completion state of the connector part in the electrical component of the said embodiment, (a) is a front view which shows a part in a cross section, (b) It is a top view which shows a part in a cross section. It is a top view which shows the assembly state of the connector part and case main body in the electrical component of the said embodiment in a partial cross section. It is a figure which shows the state after the assembly (after resin filling) in the electrical component of the said embodiment, (a) is a front view which shows a part in a cross section, (b) It is a top view which shows a part in a cross section.

Explanation of symbols

    DESCRIPTION OF SYMBOLS 1 ... Case, 2 ... Capacitor element, 3 ... Resistance, 4 ... Connector part, 8 ... Opening part, 10 ... Resin, 11 ... Case main body, 21 ... Connection terminal, 22 ... connecting part, 25 ... joint part

Claims (3)

In a method for manufacturing an electrical component in which an electronic component (2) (3) is housed in a case (1) configured by attaching a connector portion (4) to a case body (11) and filled with a resin, The plurality of connection terminals (21) connected in (22) are press-fitted into the opening (8) formed in the mounting wall surface (6) of the connector section (4), and the connection terminals (22) in the connection section (22) ( 21) Of the end surface on the extending side of 21), both end portions protruding toward the connection terminal (21) and the mounting wall surface (6) are brought into contact with each other, whereby the end surface positioned between the both end portions and the mounting wall surface (6) In this state, a slit (26) passing through the gap (S) is formed, and the connecting portion (22) is separated to electrically connect one or more connection terminals (21). And the independent connecting part (22) is connected to the electronic parts (2) (3). Method for manufacturing electrical components, characterized in that it junctions and (25) for.   2. The method of manufacturing an electrical component according to claim 1, wherein after the connecting portion (22) is separated into a joint portion (25), the joint portion (25) is bent.   The connection terminal (21) is characterized in that a press-fit portion (23) to be press-fitted into the opening (8) is formed wider than the connection portion (24) on the distal end side. Item 3. A method of manufacturing an electrical component according to Item 2.