JP2007207853A - Capacitor integrated connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a capacitor in which manufacturing cost can be reduced sharply by enhancing the workability when connection terminals are led out from a case, and a large number of connection terminals can be led out. <P>SOLUTION: A terminal member 5 connected with a capacitor element 2 and led out has a plurality of juxtaposed connection terminals 5a, and a planar coupling portion 5b for coupling each connection terminal 5a. The coupling portion 5b is press-fitted in a lead-out opening 15 provided in the wall face 8 of a case. The coupling portion 5b of the terminal member 5 is press-fitted in a lead-out opening 15 provided in the wall face 8 constituted separately from the case body 12. The wall face 8 is fixed to the case body 12, and the capacitor element 2 and the coupling portion 5b are connected and filled with resin 3. Furthermore, a plurality of connection terminals 5a, 5a are provided continuously to the tip of a pair of turned-up coupling portions 5b, 5b. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a connector integrated capacitor in which a connector portion is integrally formed in a case containing a capacitor element.

A connector-integrated capacitor in which a connector portion is integrally formed in a case housing a capacitor element is known (see, for example, Patent Document 1 and Patent Document 2). The connector-integrated capacitor 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 inserts resin into the case. It has a filled structure. Further, the connector-integrated capacitor disclosed in Patent Document 2 is configured so that the case is formed separately on the case body opened on both sides and the both side walls, and the connection terminals are press-fitted on both side walls, and the both side walls are placed on the case body. The capacitor element and the connection terminal are connected to each other and filled with resin.
Japanese Patent Laid-Open No. 2002-83735 Japanese Utility Model Publication No. 2-29706

  By the way, in any of the conventional connector-integrated capacitors, the connection terminal is drawn out from the lead-out opening provided in the case bottom 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 meet such a demand, 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. Is to provide a connector-integrated capacitor. Another object of the present invention is to provide a connector-integrated capacitor capable of extracting a large number of connection terminals without increasing the cost as in the prior art.

  Therefore, the connector-integrated capacitor of the present invention is a connector-integrated capacitor in which the capacitor element 2 is housed in the case 1 and filled with the resin 3 and the connector portion 4 is provided integrally with the case 1. The terminal member 5 that is connected and pulled out to the outside includes a plurality of connection terminals 5 a arranged in parallel and a flat plate-like connection portion 5 b that connects the connection terminals 5 a, and the connection portion 5 b is connected to the capacitor element 2. The connecting portion 5b is press-fitted into a lead-out opening 15 provided in the case wall surface portion 8, and the connecting terminal 5a is led out outward.

  Further, in the connector-integrated capacitor, the case 1 is configured separately as the wall surface portion 8 including the lead-out opening 15 and the other case main body 12, and the connecting portion 5b of the terminal member 5 is provided as the lead-out opening. 15, the wall surface portion 8 is attached to the case body 12, the capacitor element 2 and the connecting portion 5 b are connected, and the resin 3 is filled.

  Further, in the connector-integrated capacitor, the terminal member 5 is folded back, and a pair of folded connection portions 5b and 5b and a plurality of connection terminals 5a and 5a connected to the tips of the connection portions 5b and 5b are provided. And each of the connecting portions 5b and 5b is press-fitted into the corresponding lead-out openings 15 and 15 respectively.

  According to the connector-integrated capacitor of the present invention, in the terminal member 5, the plate-like connecting portion 5 b that connects the connection terminals 5 a is press-fitted into the lead-out opening 15 provided in the case wall surface portion 8. The rigidity of the portion to be made is higher than before, and therefore, the workability when pulling out the connection terminal 5a from the case 1 is greatly improved, and the manufacturing cost can be greatly reduced.

  Further, according to the connector-integrated capacitor of the present invention, the connecting portion 5b of the terminal member 5 is press-fitted into the lead-out opening 15 of the wall surface portion 8 configured separately from the case body 12, and the wall surface portion 8 is inserted into the case body. 12, the capacitor element 2 and the connecting portion 5b are connected and filled with the resin 3, so that the production can be performed efficiently and the production cost can be greatly reduced. Become.

  Furthermore, according to the connector-integrated capacitor of the present invention, the terminal member 5 is folded back and provided with a plurality of connection terminals 5a, 5a connected to the tips of the pair of folded connection portions 5b, 5b. Therefore, a large number of connection terminals 5a and 5a can be pulled out without incurring an increase in cost.

  Next, specific embodiments of the connector-integrated capacitor 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. This capacitor with integrated connectors is, for example, a capacitor element 2 housed in a case 1 made of PBT resin, filled with an epoxy resin 3, and integrated with the case 1. In particular, the connector portion 4 is provided.

  As shown in FIG. 1, the connector portion 4 includes two terminal members 5 and 6 connected to the capacitor element 1 and pulled out to the outside, and a connector case 7 (with each terminal member 5 and 6 attached) For example, it is made of PBT resin). Each of the terminal members 5 and 6 includes a plurality of connecting terminals 5a and 6a arranged in parallel, and plate-like connecting portions 5b and 6b that connect the connecting terminals 5a and 6a. 6 b is connected to the capacitor element 2. As shown in FIG. 2, each of the terminal members 5 and 6 has a plurality of connection portions 5b and 5b (6b and 6b) which are folded and folded, and a plurality of connections at the tips of the connection portions 5b and 6b. Terminals 5a and 6a are connected. On the other hand, as shown in FIG. 1, the connector case 7 has a mounting wall surface 8 for attaching the terminal members 5 and 6 and a cylindrical case portion 9 surrounding the terminal members 5 and 6, The attachment wall surface 8 is provided with lead-out openings 15 and 16 into which the connecting portions 5b and 6b of the terminal members 5 and 6 are press-fitted. The mounting wall surface 8 is provided with fitting protrusions 11 projecting from both sides and downward. Then, the connecting portions 5b and 6b of the terminal members 5 and 6 are press-fitted into the lead-out openings 15 and 16 of the connector case 7, so that the connecting terminals 5a and 6a are led out to the outside. The connector part 4 is assembled in a state where it is positioned in the case part 9. In this case, a groove 10 for sealing application is formed around the lead-out openings 15 and 16 so as to surround the lead-out openings 15 and 16, and sealing is applied to the lead-out openings 15 and 16. It is preferable to prevent the resin leakage. In addition, 5c and 6c are connecting portions provided continuously to the connecting portions 5b and 6b.

  As shown in FIGS. 2 and 3, the case main body 12 (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 13, the pair of left and right side walls 14, 14, and the side wall 17 that opposes the connector portion 4. The pair of left and right side walls 14, 14 are formed with a pair of engaging projections 18, 18 extending in the vertical direction at a position slightly away from the side wall 17 that opposes the connector portion 4. A mounting piece, which will be described later, is supported between the engaging protrusions 18 and 18 and the side wall 17. A fitting groove 19 is formed around the opening to which the connector portion 4 is attached. And the said connector part 4 is attached to the case main body 12 by inserting the fitting protrusion edge 11 of the said connector part 4 in the fitting groove | channel of the case main body 12. FIG. In this case, the mounting wall surface 8 of the connector portion 4 covers the side opening of the case main body 12, and the case 1 is configured by the case main body 12 and the mounting wall surface (case wall surface portion) 8.

  Then, as shown in FIG. 4, from the state of FIG. 3, the capacitor element 2 is inserted and arranged in the case 1, and the connection pieces 21 and 22 connected to both end metallicons are connected to the connection terminals 5 and 6, respectively. Connect to the connection parts 5c and 6c. Further, the attachment piece 23 is inserted and disposed between the engagement protrusions 18 and 18 of the case main body 12 and the side wall 17. And as shown in FIG. 5, the case 1 is filled with the epoxy resin 3, and a connector integrated capacitor is comprised.

  According to the connector integrated capacitor, in the terminal members 5 and 6, the plate-like connecting portions 5b and 6b for connecting the connection terminals 5a and 6a are press-fitted into the lead-out openings 15 and 16 provided in the mounting wall surface 8, respectively. Therefore, the rigidity of the press-fitted portion is higher than before, so that the workability when pulling out the connection terminals 5a, 6a from the case 1 is greatly improved, and the manufacturing cost can be greatly reduced. Become. In addition, the connecting portions 5 b and 6 b of the terminal members 5 and 6 are press-fitted into the lead-out openings 15 and 16 of the mounting wall surface 8 configured separately from the case body 12, and the mounting wall surface 8 is attached to the case body 12. Since the capacitor element 2 and the coupling portions 5b and 6b are connected and filled with the resin 3, the production can be efficiently performed, and the production cost can be greatly reduced. Further, since the terminal members 5 and 6 are folded back and provided with a plurality of connection terminals 5a, 5a, 6a and 6a connected to the tips of the pair of folded connection portions 5b, 5b, 6b and 6b. Many connection terminals can be pulled out without increasing the cost.

  The specific embodiment of the connector-integrated capacitor according to the present invention has been described above. However, the present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention. Is possible. 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 is provided on both sides of the case 1 and the attachment pieces 23 are provided on the remaining side. You may make it attach to the part side. In some cases, the mounting piece 23 may be omitted. Moreover, in the said embodiment, although the capacitor | condenser element 2 is connected to the terminal members 5 and 6 in the state which attached the connector part 4 to the case main body 12, in the state which connected the capacitor | condenser element 2 to the terminal members 5 and 6, The connector part 4 may be attached to the case body 12. Furthermore, as the capacitor element 2 in the above embodiment, a wound capacitor element or a multilayer capacitor element 2 may be used.

It is a figure which shows the assembly state of the connector part in the connector integrated capacitor | condenser which is embodiment of this invention, (a) is a top view before an assembly, (b) is sectional drawing after an assembly. It is a figure which shows the assembly state of the connector part and case main body in the connector integrated capacitor of the said embodiment, (a) is front sectional drawing before an assembly, (b) is front sectional drawing after an assembly. It is a top view after the assembly of the connector part and case main body in the connector integrated capacitor of the embodiment. It is a top view after the assembly (before resin filling) in the connector integrated capacitor of the embodiment. It is a top view after the assembly (after resin filling) in the connector integrated capacitor of the embodiment.

Explanation of symbols

    DESCRIPTION OF SYMBOLS 1 ... Case, 2 ... Capacitor element, 5 ... Terminal member, 5a ... Connection terminal, 5b ... Connection part, 8 ... Case wall surface part, 15 ... Derivation opening part

Claims (3)

  The capacitor element (2) is housed in the case (1), filled with the resin (3), and provided with the connector part (4) integrally with the case (1). The terminal member (5) that is connected to the outside and is pulled out to the outside includes a plurality of connecting terminals (5a) arranged in parallel and a flat plate-like connecting portion (5b) that connects the connecting terminals (5a). Then, the connecting portion (5b) is connected to the capacitor element (2), and the connecting portion (5b) is press-fitted into a lead-out opening (15) provided in the case wall surface portion (8), and the connecting terminal (5a ) To the outside, a connector-integrated capacitor.   The case (1) is configured separately as a wall surface portion (8) including the lead-out opening (15) and the other case body (12), and the connecting portion (5b) of the terminal member (5) is provided. While press-fitting into the lead-out opening (15), the wall surface portion (8) is attached to the case body (12), the capacitor element (2) and the connecting portion (5b) are connected, and the resin (3) is attached. 2. The connector integrated capacitor according to claim 1, wherein the capacitor is filled.   The terminal member (5) is formed by folding, a pair of folded connection portions (5b) (5b), and a plurality of connection terminals (5a) connected to the tips of the connection portions (5b) (5b) ( 5. The connector-integrated type according to claim 1, wherein each of the connecting portions (5 b) and (5 b) is press-fitted into the corresponding lead-out openings (15) and (15). Capacitor.