JPH0569875U - Terminal fitting - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a terminal fitting in which a lead wire of an electronic element can be easily and surely coupled to the terminal fitting and which further improves electrical reliability. The terminal fitting 27 of the present invention is provided with a supporting piece protruding from between the electric contact portion 33 and the caulking connection portion 31 and having a slit 37 for inserting and supporting the lead wire 35a of the electronic element 35. Welding having a portion 39 and a punching welding surface 41a that is bent in a direction intersecting with the support piece portion 39 and on which the lead wire 35a of the electronic element 35 located on the bottom surface 37a of the slit 37 is placed. It is characterized by having an electronic element coupling portion 43 composed of the piece portion 41.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a terminal fitting incorporated in a connector with a built-in electronic element that contains an electronic element such as a capacitor and a diode.

[0002]

[Prior Art]

 8 (a) and 8 (b) show an electronic element built-in connector 1 and a terminal fitting 3 incorporated in the electronic element built-in connector 1 described in Japanese Utility Model Application Laid-Open No. 54-150925. In these figures, the electronic element built-in connector 1 is a so-called female connector, and includes a fitting hood portion 4 into which a mating connector (male connector) is fitted and a connector housing 5 in which a terminal accommodating chamber 7 is formed. It is configured. The terminal fitting 3 is composed of an electric contact portion 11 connected to the counterpart terminal fitting and an electric wire connecting portion 13 crimped to the end of the electric wire. The electric wire connecting portion 13 is housed in the terminal accommodating chamber 7. A slit 9 is formed in the electric contact portion 11 and projects into the fitting hood portion 4. In the electronic element built-in connector 1, a surge absorbing diode 15 which is an electronic element is connected between the pair of terminal fittings 3, 3.

When the diode 15 is connected to the terminal fitting 3, as shown in FIG. 8B, the lead wire 15 a of the diode 15 is inserted into the slit 9 of the electric contact portion 11 and then folded back to form a tip end. Insert the part into the electric contact part 13 and hook it on the terminal fitting 3.

However, since the lead wire 15a of the diode 15 is simply hooked on the terminal fitting 3, there is a problem that reliability in electrical connection is poor.

Therefore, in the electronic element built-in connector 17 described in Japanese Patent Laid-Open No. 182676/1985, as shown in FIGS. 9 (a) and 9 (b), an electronic element coupling portion is provided at the rear end of the terminal fitting 19. 21 is formed, and the electronic element 23 is soldered to the electronic element coupling portion 21 to couple the electronic element 23 to the terminal fitting 19.

However, when the electronic element 23 is soldered to the electronic element coupling section 21, the electronic element 23 is easily moved, and it is very difficult to solder the electronic element 23 to a predetermined position of the electronic element coupling section 21. There is a problem that it is difficult and good soldering cannot be performed.

Therefore, it is conceivable to use a jig to position the electronic element 23 at a predetermined position of the electronic element coupling portion 21, but in this case, the electronic element 23 and the terminal fitting 19 are used as jigs one by one. Since it is necessary to set it, there is a problem that the work of connecting the electronic element 23 to the terminal fitting 19 is troublesome.

[0008]

[Problems to be solved by the device]

 In this way, just by hooking the lead wire of the electronic element to the terminal fitting, the electrical reliability is poor, and when soldering the electronic element to the electronic element coupling part, its positioning is difficult and good soldering can be performed. There was a problem of not having.

In consideration of the above circumstances, the present invention provides a terminal fitting that can easily and surely connect a lead wire of an electronic element to a predetermined position of the terminal fitting to further improve electrical reliability. The purpose is to do.

[0010]

[Means for Solving the Problems]

 In order to achieve the above object, the device according to claim 1 is provided with a supporting piece part projecting from between the electric contact part and the electric wire connecting part, and having a slit for supporting the lead wire of the electronic element, It has an electronic element coupling part which is formed to be bent in a direction intersecting with the supporting piece part, and which has a connecting piece part having a connecting surface on which the lead wire of the electronic element located on the bottom surface of the slit is mounted. It is characterized by

According to a second aspect of the invention, in the terminal fitting of the first aspect, the slit is formed in the vicinity of the connection surface along a direction intersecting the connection surface.

[0012]

[Action]

 According to the invention of claim 1, when the lead wire of the electronic element is inserted into the slit and positioned on the bottom surface, the lead wire is positioned on the connection surface. In this state, connect the lead wire to the connecting surface.

According to the second aspect of the invention, when the lead wire of the electronic element is inserted into the slit and positioned on the bottom surface, the lead wire is positioned on the connection surface. From this state, position the connecting surface horizontally and connect the lead wire to the connecting surface. In this case, since the slit is formed in the vicinity of the connection surface and along the direction intersecting the connection surface, movement of the lead wire within the slit is restricted.

[0014]

【Example】

 Each embodiment of the electronic device built-in connector according to the present invention will be described below with reference to the drawings.

First Embodiment FIGS. 1 to 3 show an electronic element built-in connector 25 and a terminal fitting 27 assembled to the connector 25. In the figure, the electronic device built-in connector 25 includes a connector housing 49 in which, in addition to the terminal fitting 27, a fitting hood portion 45 into which a mating connector is fitted is integrally formed and a terminal accommodating chamber 47 is formed. It is composed of a terminal block 51 that supports the terminal fitting 27 and a cover 53 that closes the terminal accommodating chamber 47.

The terminal fitting 27 includes a crimping connection portion 31 crimped and connected to an end portion of the electric wire 29, an electric contact portion 33 formed on a tip side of the crimping connection portion 31, and a crimping connection portion. It is composed of an L-shaped electronic element coupling portion 43 formed between 31 and the electric contact portion 33.

A conductor 46 of the electric wire 29 (see FIG. 3) is caulked and connected to the caulking connection portion 31. Further, the electric contact portion 33 has a flat plate shape and is fitted to a mating terminal fitting assembled to the mating connector so as to be electrically connected.

The electronic element coupling portion 43 is provided so as to project from between the electric contact portion 33 and the caulking connection portion 31, and a linear slit 37 for inserting and supporting the lead wire 35 a of the electronic element 35 is formed. A plate-shaped supporting piece 39 and a lead wire 35a of the electronic element 35 which is bent and formed in a direction intersecting with the supporting piece 39 and which is located on the bottom surface 37a of the slit 37 is mounted. And a welding piece portion 41 (connection piece portion) having a welding surface 41a (connection surface).

In FIG. 3, reference numeral 55 is an upper electrode and 57 is a lower electrode.

Next, a procedure for assembling the terminal fitting 27 to the electronic element built-in connector 25 will be described. As shown in FIG. 2, the electric contacts 33 1, 33 are inserted through the through holes 51 a, 51 a of the terminal block 51, and the terminal fittings 27, 27 are attached to the terminal block 51. In this case, since the through holes 51a, 51a are formed with a predetermined pitch, the terminal fittings 27, 27 are positioned at a predetermined interval. The lead wires 35 a and 35 a of the electronic element 35 are inserted into the slits 37 and 37 from the state where the terminal fittings 27 and 27 are attached to the terminal base 51, respectively.

Then, as shown in FIG. 3, the terminal block 51 is erected so that the stamped welding surface 41 a is substantially horizontal, and the lead wires 35 a, 35 are provided between the upper electrode 55 and the lower electrode 57. The lead wires 35a, 35a are welded to the embossed welding surface 41a so as to sandwich the welding piece 41 with a. Next, the terminal bases 51 and the terminal fittings 27 are housed in the terminal housing chamber 47 of the connector housing 49, and the sealing resin is injected into the terminal housing chamber 47 to open the rear opening of the terminal housing chamber 47. Close with cover 53. As a result, the electronic element built-in connector 25 is completed.

Another embodiment will be described below. The same parts as those in the first embodiment will be described using the same reference numerals.

Second Embodiment Next, a second embodiment will be described. 4 to 6 show an electronic element built-in connector 59 of the second embodiment and a terminal fitting 61 which is assembled to the electronic element built-in connector 59.

The present embodiment is different from the above-described first embodiment in the shape of the slit formed in the support piece portion 39. That is, the slit 37 of the first embodiment is formed linearly along the welding piece portion 41, but the slit 63 of the present embodiment is formed near the embossed weld surface 41a and intersects the weld surface 41a. And the lead wire 35a of the electronic element 35 located on the bottom surface 63a is positioned along the punching welding surface 41a, and the holding slit portion 63b is continuous with the holding slit portion 63b. It is composed of an insertion slit portion 63c which is formed in an ascending slope which is gradually separated from the embossed welding surface 41 and which is opened to a side portion of the supporting piece portion 39.

Next, a procedure for assembling the terminal fittings 61, 61 to the electronic element built-in connector 59 will be described. As shown in FIG. 5, the electric contact portions 33 1, 33 of the two terminal fittings 61, 61 are vertically moved and inserted into the through holes 51a, 51a of the terminal base 51 placed horizontally, respectively. , 61 to the terminal block 51.

Then, the lead wires 35a of the electronic element 35 are inserted through the openings 65 of the insertion slit portion 63c, and are inserted up to the bottom surface 63a of the holding slit portion 63b. The lead wire 35a positioned on the bottom surface 63a is positioned and placed on the stamped welding surface 41a.

As shown in FIG. 6, with the lead wire 35a placed on the stamped welding surface 41a, the terminal block 51 is erected, that is, the stamped welding surface 41a is horizontal. Then, the upper electrode 55 and the lower electrode 57 (see FIG. 2) sandwich the embossed welding surface 41a and the lead wire 35a, and the lead wire 35a is welded on the embossed welding surface 41a.

After the lead wire 35 a is welded to the embossed welding surface 41 a, the terminal fittings 61, 61 are inserted into the terminal accommodating chamber 47 of the connector housing 49, and the terminal accommodating chamber 47 is filled with the sealing resin. , The opening of the terminal accommodating chamber 47 is closed. Then, the sealing resin is cured. As a result, the electronic element built-in connector 59 is completed.

According to this embodiment, since the holding slit portion 63b is formed along the direction intersecting the stamped welding surface 41a, the movement of the lead wire 35a is restricted, and the straight line of the first embodiment is restricted. It is possible to more reliably position and hold the lead wire 35a of the electronic element 35 as compared with the slit 37 in the shape.

Third Embodiment Next, a third embodiment will be described. In the support piece portion 39 formed on the terminal fitting 69 of the present embodiment, a direction crossing the drive-welding surface 41a from the vicinity of the drive-welding surface 41a to the side of the support piece 41. A slit 71 having an upward slope is formed along the line. Near the bottom surface 71a of the slit 71, a pair of projections 73, 73 are provided so as to project from the inner wall. The inside surrounded by these projections 73, 73 and the slit 71 on the side of the stamped welding surface 41 a has a size capable of accommodating the lead wire 35 a of the electronic element 35. Further, the dimension between the protrusions 73, 73 is set so that the lead wire 35a can be easily passed by pressing.

In this embodiment, since the projections 73, 73 are provided on the slit 71, the lead wire 35a of the electronic element 35 can be more reliably positioned as compared with the first and second embodiments described above. You can hold the decision.

In each of the above-mentioned embodiments, the stamped welding surface is stamped and formed, but the invention is not limited to this, and the stamped welding surface may be a flat surface or a concave surface. Further, in this embodiment, the lead wire 35a is welded to the stamped welding surface 41a, but soldering may be used instead of welding.

[0033]

[Effect of the device]

 As described above, according to the terminal fitting of the present invention, the supporting piece portion having the slit for inserting and supporting the lead wire of the electronic element and the lead wire of the electronic element located on the bottom surface of the slit are mounted. Since the electronic element coupling part consisting of the connection piece having the connection surface is provided, the lead wire of the electronic element can be easily and surely coupled to the terminal fitting, and the electrical reliability is further improved. ..

[Submission date] August 31, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0003

[Correction method] Change

[Correction content]

When the diode 15 is connected to the terminal fitting 3, as shown in FIG. 8B, the lead wire 15 a of the diode 15 is inserted into the slit 9 of the electrical contact portion 11 and then folded back to form a tip. Insert the part into the wire connection part 13 and hook it on the terminal fitting 3.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0030

[Correction method] Change

[Correction content]

Third Embodiment Next, a third embodiment will be described. In the supporting piece 39 formed on the terminal fitting 69 of the present embodiment, a direction crossing the punching welding surface 41a from the vicinity of the punching welding surface 41a to the side of the supporting piece 39. A slit 71 having an upward slope is formed along the line. Near the bottom surface 71a of the slit 71, a pair of projections 73, 73 are provided so as to project from the inner wall. The inside surrounded by these projections 73, 73 and the slit 71 on the side of the stamped welding surface 41 a has a size capable of accommodating the lead wire 35 a of the electronic element 35. Further, the dimension between the protrusions 73, 73 is set so that the lead wire 35a can be easily passed by pressing.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a terminal fitting according to a first embodiment of the present invention and an electronic element built-in connector to which the terminal fitting is assembled.

FIG. 2 is a perspective view showing a state where the terminal fitting of the first embodiment is attached to a terminal block.

FIG. 3 is a side view showing a state in which the terminal fitting of the first embodiment is horizontally placed.

FIG. 4 is an exploded perspective view showing a terminal fitting according to a second embodiment and an electronic element built-in connector to which the terminal fitting is assembled.

FIG. 5 is a perspective view showing a state where the terminal fitting of the second embodiment is attached to a terminal block.

FIG. 6 is a side view showing a state in which a terminal fitting of the second embodiment is horizontally placed.

FIG. 7 is a side view showing a state in which the terminal fitting of the third embodiment is horizontally placed.

8A and 8B show a conventional connector with a built-in electronic element, FIG. 8A is a sectional view showing a connector housing, and FIG. 8B is a perspective view showing a terminal fitting.

9A and 9B show a conventional connector with a built-in electronic element, FIG. 9A is a sectional view showing a connector housing, and FIG. 9B is a side view showing a terminal fitting.

[Explanation of symbols]

 27, 61, 69 Terminal fitting 31 Caulking connection part 33 Electric connection part 35 Electronic element 35a Lead wire 37, 63, 71 Slit 37a, 63a Bottom surface 39 Support piece part 41 Welding piece part (connecting piece part) 41a Ejection welding surface (Connecting surface) 43, 67 Electronic element coupling part 63b Holding slit part 63c Insertion slit part

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[Procedure amendment]

[Submission date] August 31, 1992

[Procedure 3]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 5

[Correction method] Change

[Correction content]

[Figure 5]

[Procedure amendment 4]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 6

[Correction method] Change

[Correction content]

[Figure 6]

[Procedure Amendment 5]

[Document name to be corrected] Drawing

[Correction target item name] Figure 8

[Correction method] Change

[Correction content]

[Figure 8]

Claims (2)

[Scope of utility model registration request] 1. A terminal fitting in which an electric contact portion connected to a mating terminal fitting is provided on one side and an electric wire connecting portion is provided on the other side, and a lead wire of an electronic element is connected therebetween, wherein the electric contact portion And a supporting piece portion provided with a slit for supporting the lead wire of the electronic element, and bent in a direction intersecting with the supporting piece portion. A terminal fitting, comprising: an electronic element coupling portion including a connection piece portion having a connection surface on which a lead wire of the electronic element is placed, which is located on a bottom surface of the slit. 2. The terminal fitting according to claim 1, wherein the slit is formed in the vicinity of the connection surface along a direction intersecting with the connection surface.