JP2012119546A - Connecting terminal and method for connecting electric element - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connecting terminal or the like, which reduces the size of a case or the like for accommodating an electric element, does not require a welding operation, suppresses the number of components, and simultaneously achieve improvement of reliability by reducing electrical equipment in size, reducing manufacturing cost and furthermore reducing the number of connection parts.SOLUTION: The connecting terminal includes a plurality of cap terminals 2 (2A and 2B) which are integrated with terminal parts of the electric element accommodated therein by accommodating the terminal parts of the electric element and subsequently caulking the terminal parts, and a connection part 3 which electrically connects the adjacent cap terminals to each other; and integrally forms the plurality of the cap terminals and the connection part. The connection part can be formed into a strip shape, an S-plate shape or a plate shape having a V-shaped or U-shaped bent part, or a plate shape having a long hole extended to an extending direction of the connection part or having notches at both ends which are perpendicular to the extending direction of the connection part. A resistor having the characteristics can be configured by making the electric element as a resistive element.

Description

  The present invention relates to a connection terminal used for connecting electrical elements such as a plurality of resistance elements, and a method for connecting electrical elements using the connection terminals.

  Conventionally, a resistor as shown in FIG. 8 is used for electrical wiring of an automobile or the like. This resistor 51 accommodates two resistors 53 (53A, 53B) in a porcelain case 52, welds a cord 54 (54A, 54B) to one end of each resistor 53, and each resistor Each end of 53 is welded to both ends of the lead wire 55. As shown in FIG. 9, the resistor 53 is wound around a resistance wire 53b around the twisted glass fiber 53a (FIG. 9 (a)), cut to an appropriate length (FIG. 9 (b)), The cap terminal 53c is caulked at both ends (FIG. 9C).

  Further, as a resistor having a configuration similar to that of the resistor 51, a resistor 61 as shown in FIG. 10 is also used. The resistor 61 accommodates two resistors 63 (63A, 63B) in a porcelain case 62, welds a cord 64 (64A, 64B) to one end of each resistor 63, and one resistor The cap terminal 67 is caulked and fixed to the end of 63A, and the lead wire 66 previously welded to the bottom of the cap terminal 67 is welded to the other cap terminal 65.

  However, in the resistors 51 and 61, the lead wires 55 and 66 for connecting the two resistors 53 and the like need to be welded to the cap terminals 53c and 65, and a space for accommodating the portions of the lead wires 55 and 66 ( Since the portions indicated by L1 and L2 in FIGS. 8 and 10 are wide, there is a problem that the entire porcelain cases 52 and 62 are enlarged. Therefore, a measure for reducing the size of the porcelain cases 52 and 62 has been demanded.

  Therefore, in the resistor 71 shown in FIG. 11, plate-like projecting portions 75a and 77a are provided on cap terminals 75 and 77 that are caulked and fixed to one end of each of the two resistance elements 73 (73A and 73B). By welding, the lead wire for connecting the resistor is not required, and the entire porcelain case 72 can be made smaller by L1 and L2 shown in FIGS.

  On the other hand, instead of the twisted glass fiber, a resistor using a ceramic rod core is also used, and in this case, the ceramic rod core can be damaged, so the cap terminal as described above cannot be caulked, As described in Patent Document 1, a resistor has been proposed in which the end of a ceramic rod core is press-fitted into a cap terminal to reduce the size of the container, eliminate the need for welding, and reduce the number of components.

JP 2010-212483 A

  However, in the conventional connection terminal 71 shown in FIG. 11, the entire porcelain case 72 can be miniaturized without the need for a lead wire, but the plate-like protrusions 75a and 77a provided on the cap terminals 75 and 77 are provided. There is a problem that welding work is still necessary because it is necessary to weld and bond each other.

  Therefore, the present invention has been made in view of the problems in the conventional connection terminals described above, and can reduce the overall size of a container such as a porcelain case that houses a resistor (resistance element), and does not require welding work. An object of the present invention is to provide a connection terminal or the like that can reduce the number of components, reduce the size of an electrical device such as a resistor, reduce the manufacturing cost, and improve the reliability by reducing the number of connection points.

  To achieve the above object, the present invention comprises a plurality of cap terminals that are integrated with the terminal portion of the electrical element accommodated by caulking after the terminal portion of the electrical element is accommodated. A connection portion for electrically connecting adjacent cap terminals to each other is provided, and the plurality of cap terminals and the connection portion are integrally formed.

  And according to this invention, after accommodating the terminal part of an electrical element in the connection terminal in which the several cap terminal and the connection part were formed integrally, it connects with the terminal part of the said electrical element accommodated by crimping Since the terminal can be integrated, it is possible to reduce the size of the case for housing the electrical element, etc., eliminating the need for welding work, minimizing the number of parts, reducing the size of electrical equipment such as resistors, and reducing manufacturing costs. In addition, the reliability can be improved at the same time by reducing the number of connection points.

  In the connection terminal, the plurality of cap terminals may have the same shape, and the openings of the plurality of cap terminals may be opened in the same direction and may exist in the same plane. Thereby, in a state where a plurality of electric elements are arranged in parallel, the terminal portion of the electric element and the connection terminal can be integrated in a compact manner without welding.

  Further, in the connection terminal, the connection portion may be a strip plate shape, an S-shaped plate shape, a plate shape having a V-shaped or U-shaped bent portion, or a length extending in the extending direction of the connecting portion. It can be formed in the shape of a plate having notches at both end portions perpendicular to the extending direction of the hole or the connecting portion. This facilitates adjustment and handling of the distance between the cap terminals when the connection terminals are manufactured and after the electrical elements are connected.

  Furthermore, the present invention is a method for connecting an electric element, comprising a plurality of cap terminals and a connection part for electrically connecting the adjacent cap terminals to each other, wherein the plurality of cap terminals and the connection part are integrated. The terminal portion of the electric element accommodated by caulking after the terminal portion of the electric element is accommodated in each of the plurality of cap terminals, and the plurality of cap terminals are integrated. can do. As in the above invention, this makes it possible to reduce the size of the case that houses the electrical element, eliminates the need for welding work, reduces the number of parts, reduces the size of the electrical device, reduces the manufacturing cost, and reduces the number of connection points. Improved reliability can be achieved at the same time.

  As described above, according to the present invention, it is possible to reduce the size of a case or the like that accommodates an electric element, eliminates the need for welding work, reduces the number of components, reduces the size of the electric device, reduces the manufacturing cost, and further connects. It is possible to provide a connection terminal or the like that can simultaneously achieve improved reliability by reducing the number of locations.

It is a figure which shows 1st Embodiment of the connecting terminal concerning this invention, Comprising: (a) is a top view, (b) is a front view, (c) is a bottom view, (d) is a perspective view. It is a figure for demonstrating the point which manufactures a resistor using the connection terminal of FIG. 1, Comprising: (a) is a perspective view which shows the state which attached and connected the connection terminal to the resistive element, (b) is a manufacture. It is an internal structure figure which shows the resistor. It is a figure which shows 2nd Embodiment of the connection terminal concerning this invention, Comprising: (a) is a top view, (b) is a front view, (c) is a bottom view. It is a figure which shows 3rd Embodiment of the connecting terminal concerning this invention, Comprising: (a) is a top view, (b) is a front view, (c) is a bottom view. It is a figure which shows 4th Embodiment of the connection terminal concerning this invention, Comprising: (a) is a top view, (b) is the sectional view on the AA line of (a), (c) is a bottom view. It is a figure which shows 5th Embodiment of the connection terminal concerning this invention, Comprising: (a) is a top view, (b) is a front view, (c) is a bottom view. It is a figure which shows 6th Embodiment of the connection terminal concerning this invention, Comprising: (a) is a top view, (b) is a front view, (c) is a bottom view. It is an internal structure figure which shows an example of the conventional resistor. It is the schematic for demonstrating the manufacturing method of the conventional resistor. It is an internal structure figure which shows the other example of the conventional resistor. It is a figure which shows the other example of the conventional resistor, Comprising: (a) is an internal structure figure, (b) is a perspective view.

  Next, modes for carrying out the present invention will be described with reference to the drawings.

  FIG. 1 shows a first embodiment of a connection terminal according to the present invention. This connection terminal 1 is entirely made of a conductive material, and two cap terminals 2 (2A, 2B) and these cap terminals. 2 and a connection part 3 for connecting the two.

  The cap terminals 2A and 2B are formed in the same shape, and the openings 2a and 2b of the cap terminals 2A and 2B open in the same direction and exist in the same plane. The connection part 3 is formed in a strip shape.

  Next, the point which manufactures a resistor using the connecting terminal 1 which has the said structure is demonstrated, referring FIG.

  Two resistance wires are wound around the outside of the twisted glass fiber and cut to an appropriate length (the same as the one shown in FIG. 9B, hereinafter referred to as “resistance element”), As shown in FIG. 2A, the cap terminals 2 </ b> A and 2 </ b> B of the connection terminal 1 are covered and crimped on one end of each of the resistance elements 13 (13 </ b> A and 13 </ b> B). Further, as shown in FIG. 2 (b), cap terminals 15 and 16 are put on the other ends of the resistance elements 13A and 13B, and the cords 14 (14A and 14B) are welded to the cap terminals 15 and 16, respectively. Then, the resistor 11 is manufactured by accommodating the whole in the porcelain case 12.

  As described above, in the present embodiment, after the terminal portions of the resistance elements 13A and 13B are accommodated in the two cap terminals 2A and 2B that are connected in advance by the connection portion 3, the resistance element 13A is accommodated by caulking. Since the terminal portion of 13B and the cap terminals 2A and 2B are integrated, the conventional lead wires 55 and 66 (see FIG. 8 and FIG. 10) become unnecessary, the entire porcelain case 12 can be downsized, No welding work is required, the number of parts is reduced, and it is possible to simultaneously reduce the size of the resistor 11, reduce the manufacturing cost, and improve the reliability by reducing the number of connection points.

  FIG. 3 shows a second embodiment of the connection terminal according to the present invention. This connection terminal 21 is entirely made of a conductive material, and includes two cap terminals 22 (22A, 22B) and these cap terminals. 22 and a connecting portion 23 having a V-shaped bent portion 23a.

  Similarly to the connection terminal 1, the connection terminal 21 also functions similarly to the connection terminal 1 by covering the terminal portions of the resistance elements 13A and 13B shown in FIG. 23 has a V-shaped bent portion 23a, so that the connection portion 23 is pulled toward the cap terminals 22A and 22B when the connection terminal 21 is manufactured and when it is covered with the terminal portions of the resistance elements 13A and 13B. Even in the case of extending in the extending direction, the distance between the cap terminals 22A and 22B can be quickly adjusted, and the connection terminal 21, the resistance elements 13A and 13B, and the cords 14A and 14B (FIG. 2A )) Is integrated, and then the work to be accommodated in the porcelain case 12 can be quickly performed.

  FIG. 4 shows a third embodiment of the connection terminal according to the present invention. The connection terminal 26 is entirely made of a conductive material, and includes two cap terminals 27 (27A, 27B) and these cap terminals. 27 and a U-shaped bent portion 28a.

  The U-shaped bent portion 28a of the connection terminal 26 also functions in the same manner as the bent portion 23a of the connection terminal 21 so that the adjustment of the interval between the cap terminals 27A and 27B and the storing operation in the porcelain case 12 can be performed quickly. It can be carried out.

  FIG. 5 shows a fourth embodiment of the connection terminal according to the present invention. This connection terminal 31 is entirely made of a conductive material, and two cap terminals 32 (32A, 32B) and these cap terminals. The connecting portion 33 has a long hole 33 a extending in the extending direction of the connecting portion 33.

  The long hole 33a of the connecting portion 33 also functions in the same manner as the V-shaped bent portion 23a of the connecting terminal 21 and the U-shaped bent portion 28a of the connecting terminal 26, and the interval between the cap terminals 32A and 32B is increased. Adjustment and storage work in the porcelain case 12 can be performed quickly.

  FIG. 6 shows a fifth embodiment of the connection terminal according to the present invention. This connection terminal 36 is entirely made of a conductive material, and includes two cap terminals 37 (37A, 37B) and these cap terminals. 37, and the connection portion 38 has notches 38a at both ends perpendicular to the extending direction of the connection portion 38. The notches 38a of the connection portion 38 are also It functions in the same manner as the long hole 33a of the connection terminal 31.

  FIG. 7 shows a sixth embodiment of the connection terminal according to the present invention. This connection terminal 41 is entirely made of a conductive material, and includes two cap terminals 42 (42A, 42B) and these cap terminals. The connection part 43 is connected to the connection part 43, and the connection part 43 is formed in an S-shaped plate.

  The S-shaped portion of the connecting portion 43 also functions in the same manner as the V-shaped bent portion 23a of the connecting terminal 21 and the U-shaped bent portion 28a of the connecting terminal 26, and the interval between the cap terminals 42A and 42B is increased. Adjustment and storage work in the porcelain case 12 can be performed quickly.

  In the above embodiment, the case where two cap terminals exist in the connection terminal has been described. However, the number of cap terminals is not limited to two and may be three or more.

  Further, in the above-described embodiment, the resistance element accommodated by caulking after the terminal portion of the resistance element is accommodated in the cap terminal of the connection terminal and the cap terminal are integrated, but the connection target is limited to the resistance element. However, other electric elements may be used.

DESCRIPTION OF SYMBOLS 1 Connection terminal 2 (2A, 2B) Cap terminal 2a, 2b Opening part 3 Connection part 11 Resistor 12 Porcelain case 13 (13A, 13B) Resistance element 14 (14A, 14B) Cord 15, 16 Cap terminal 21 Connection terminal 22 ( 22A, 22B) Cap terminals 22a, 22b Opening portion 23 Connecting portion 23a Bending portion 26 Connecting terminal 27 (27A, 27B) Cap terminal 27a, 27b Opening portion 28 Connecting portion 28a Bending portion 31 Connecting terminal 32 (32A, 32B) Cap terminal 32a, 32b Opening 33 Connection 33a Slot 36 Connection terminal 37 (37A, 37B) Cap terminal 37a, 37b Opening 38 Connection 38a Notch 41 Connection terminal 42 (42A, 42B) Cap terminal 43 Connection

Claims (5)

  A plurality of cap terminals integrated with the terminal portion of the electric element accommodated by caulking after accommodating the terminal portion of the electric element, and a connecting portion for electrically connecting adjacent cap terminals; The connection terminal, wherein the plurality of cap terminals and the connection portion are integrally formed.   2. The connection terminal according to claim 1, wherein the plurality of cap terminals have the same shape, and the openings of the plurality of cap terminals open in the same direction and exist in the same plane.   The connecting portion may be a strip plate shape, an S-shaped plate shape, a plate shape having a V-shaped or U-shaped bent portion, a long hole extending in the extending direction of the connecting portion, or an extension of the connecting portion. The connection terminal according to claim 1, wherein the connection terminal is formed in a plate shape having notches at both side end portions perpendicular to the installation direction.   The connection terminal according to claim 1, wherein the electrical element is a resistance element.   Each of the plurality of cap terminals includes a plurality of cap terminals and a connection portion that electrically connects the adjacent cap terminals to each other, and uses the connection terminals formed integrally with the plurality of cap terminals and the connection portion. The terminal part of the electric element accommodated by crimping the terminal part of the electric element and the terminal part of the electric element accommodated by each of the plurality of cap terminals are integrated.

Images