JPH0433285A - Pressure terminal inserting method into connector housing - Google Patents

Abstract

PURPOSE:To prevent useless terminal insertion and reduce the cost by using multiple pressure terminal reels winding pressure terminal vertical chains with the same U-shaped slot pressure edge, and selectively combining the pressure terminals necessary for a terminal slots with the pressure terminal reels. CONSTITUTION:When a group of pressure terminals 1 are inserted into the terminal slots of a connector housing 6 and electric wires are connected by pressure welding, pressure terminal reels 4 winding pressure terminal vertical chains 3 vertically connecting a group of pressure terminals 1 with the same U-shaped slot pressure edges 5 via connection pieces 2 are molded for each shape of the U-shaped slot pressure edge 5, the pressure terminal reels 4 are matched with the terminal slots 7 of the connector housing 6 to be inserted, and the pressure terminal reels 4 with U-shaped slot pressure edges 5 with the same and different shapes are selectively combined and arranged in front of the connector housing 6. The pressure terminal vertical chains 3 are fed are inserted from a group of the pressure terminal reels 4, then the connection pieces 2 are cut off and inserted. The pressure terminals 1 with the pressure edge condition satisfying the necessary condition for the conduction connection of a group of electric wires can be correctly fed and inserted into the terminal slot.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a method for inserting a pressure contact terminal into a terminal receiving chamber of a connector housing.

"Prior Art" As a method for automatically supplying and inserting press-contact terminals into the terminal accommodating chamber of a connector housing, the following two types of means have been adopted.

That is, one of them is as shown in FIG. 2, in which the pitch P2 of the pressure contact terminals 1 should be inserted into a chain of pressure contact terminals in which the pressure contact terminals 1 are juxtaposed and protruding from the side of the strip carrier 8. The pitch of the terminal accommodating chamber 7 of the connector housing is set to an integral multiple of the pitch P1 (for example, P2=2P□), and a plurality of crimping terminals 1 are inserted into the terminal accommodating chamber 7 at a time by the crimping terminal chain, and the inserted crimping terminals are 1 from the carrier 8, and then, using the feed hole 9 of the carrier 8, advance the press-contact terminal chain by an integral multiple of the pitch P1, and insert it into the terminal accommodating chamber 7 that was not inserted during the previous insertion, A necessary group of press-contact terminals is inserted into the connector housing 6 by a plurality of insertion operations, and after the insertion, electric wires are press-connected.

In addition, as shown in FIG. 3, a pressure contact terminal chain in which the same pressure contact terminals 1 of P2=2P1 as described above are juxtaposed and protruded from the side of the carrier 8 is stacked to form two upper and lower stages, as shown in FIG. The upper and lower insulation displacement terminals 1 are shifted to the middle of each other so that the upper and lower tiers are arranged with a pitch P□, and the required number of insulation displacement terminal groups are inserted into the connector housing 6 by one insertion operation, After the insertion, electric wires are connected to the individual pressure contact terminals 1 by pressure contact.

``Problems to be Solved by the Invention'' According to the conventional means described above, although it is possible to automatically feed a group of press-contact terminals, there are the following drawbacks. In other words, because an extremely large number of connectors are used in automotive wiring harnesses, adjacent
If the shapes and number of pins of neighboring connectors are similar, there is a risk of incorrectly connecting the connectors due to confusion. Therefore, connectors that are adjacent or close to each other in the arrangement are intentionally designed to make it easier to distinguish their appearance. A preventive measure has been taken to make the shapes and number of poles different, and as a result, there are currently many empty terminal storage chambers in which no terminals are inserted.

However, according to the above-mentioned conventional means, it is not possible to prevent the terminal from being inserted only into the intentionally specified terminal accommodating chamber, so that unnecessary pressure contact terminals are wasted and inserted.

Furthermore, in many cases, wire harnesses for automobiles connect multiple wire sizes within a single connector, and the wires are connected using the U-shaped slot of the insulation displacement terminal in the insulation displacement blade, so the shape of the U-shaped slot varies depending on the wire size. It is necessary to use a different one.

However, according to the above-mentioned conventional method of parallel and protruding pressure contact terminal chains, it is practically extremely difficult to arrange and mold pressure contact terminals with U-shaped slots of different shapes in a desired sequence in a single pressure contact terminal chain. Due to this difficulty, we had no choice but to standardize the wire size to the maximum diameter by using a pressure welding terminal chain of the largest wire size in the connector housing, resulting in unnecessary thickening of the wires and an enlarged wire harness. This has become a factor in increasing costs and increasing costs.

The present invention provides a method for inserting a pressure contact terminal that overcomes the drawbacks of the conventional means described above.

"Means for Solving the Problems" The present invention, which solves the above-mentioned technical problems, is based on the concept of "inserting a group of press-contact terminals into the terminal accommodating chamber of a connector housing, and When connecting electric wires by pressure welding, a group of pressure contact terminals of the same U-shaped slot pressure welding blade 5 is connected to the U-shaped slot by winding a vertical series of pressure contact terminals fi3 that are continuous in the vertical direction via the connecting piece 2. The pressure contact reels 4 of the pressure contact blades 5 are molded according to the shape of the pressure contact blades 5, and the pressure contact reels 4 of the U-shaped slot pressure contact blades 5 of the same or different shapes are formed in accordance with the respective terminal receiving chambers 7 of the connector housing 6 to be inserted. are selectively combined, arranged in parallel in front of the connector housing 6, and the insulation displacement terminal wire chain 3 is supplied and inserted from the four groups of insulation displacement terminal reels, and then the connection pieces 2 are separated. .

As an embodiment of the above insertion method, the pitch P3 of the four groups of press-contact terminal reels may be equal to the horizontal arrangement pitch P□ of the terminal accommodating chamber 7, so that P3=Pl.
Furthermore, in the case of the connector housing 6 having a two-tiered terminal accommodating chamber 7, the press-contact terminal reel group 4 may be arranged in upper and lower two tiers, and terminals may be inserted into the upper and lower terminal accommodating chambers 7 at the same time.

"Function" According to the insertion method of the present invention described above, a pressure contact reel 4 is used in which a pressure contact wire chain 3 having the same U-shaped slot pressure contact blade 5 is wound, and the pressure contact reel 4 is placed in a terminal storage chamber. 7 and having the necessary U-shaped slot pressure welding blades 5 are selectively combined and arranged in parallel, so that the pressure welding terminals having the necessary pressure contact blade conditions can be accurately inserted into the individual terminal accommodating chambers 7. Further, if the pressure contact terminal reel 4 is previously removed from the empty terminal storage chamber in which no terminal is intentionally inserted, the empty terminal storage chamber can be accurately turned into an empty terminal storage chamber.

Furthermore, if the pitch P of the insulation displacement terminal reel 4 of the embodiment described above and the horizontal arrangement pitch P□ of the terminal storage chambers 7 are set in parallel, harmful resistance when feeding and supplying the insulation displacement terminal vertical chain 3 can be reduced. In addition to smooth delivery and supply, terminal deformation is also prevented.

"Effects of the Invention" As explained above, the method for inserting a pressure contact terminal into a connector housing according to the present invention is to insert a pressure contact terminal having a pressure contact blade condition that satisfies the necessary conditions for conductive connection of a group of wires into individual terminal housing chambers. In addition to accurately supplying and inserting the wires, it is also possible to intentionally create empty terminal storage chambers, so it is possible to insert insulation displacement terminals of the minimum diameter wire into each terminal storage chamber to prevent thick wires and enlarged wire harnesses. This has the effect of preventing unnecessary terminal insertion and reducing costs.

Furthermore, since the pressure contact terminals can be inserted all at once including the connector housing having a multi-stage terminal accommodating chamber configuration, the work efficiency of inserting the pressure contact terminals into the connector housing is further improved.

[Brief explanation of the drawing]

Figure 1.2 A perspective view showing the concept of the method of inserting a pressure contact terminal into a connector housing according to the present invention, Figures 2 and 3: A perspective view showing a conventional method of inserting a pressure contact terminal into a connector housing Main symbols: 1: Pressure contact terminal , 2: connecting piece, 3: vertical chain of pressure contact terminals, 4: pressure contact terminal reel, 5: U-shaped slot pressure contact blade,
6: Connector housing, 7: Terminal accommodation chamber

Claims (2)

[Claims] (1) When inserting a group of press-contact terminals into the terminal accommodating chamber of the connector housing and press-connecting electric wires after insertion, the group of press-contact terminals of the same U-shaped slot press-contact blade are connected in a vertically continuous press-contact manner via a connecting piece. The vertical chain of terminals is wound up to form a pressure welding terminal reel, and the pressure welding terminal reels for each shape of the U-shaped slot pressure welding blade are prepared in advance, and the pressure welding terminal reels are prepared in advance to match the pressure welding terminal conditions of each terminal receiving chamber of the connector housing to be inserted. Then, the pressure contact reels are selectively combined and arranged in series in front of the terminal storage chambers, and the vertical chain of pressure contact terminals is supplied and inserted into the terminal storage chamber group from the pressure contact terminal reels, and then the connecting pieces are separated. A method for inserting a pressure contact terminal into a connector housing. (2) A method for inserting a pressure contact terminal into a connector housing as set forth in claim (1), wherein the pitch of the pressure contact reels and the horizontal arrangement pitch of the terminal accommodating chambers are the same.