JPH04133280A - Male connector - Google Patents

Abstract

PURPOSE:To prevent accidental bending or buckling of a terminal by partially putting an insulation film on a connector terminal of a male connector arranging a large number of connector terminals of a male connector to be connected electrically to a female connector. CONSTITUTION:Insualtion film coating Ic8 id not applied to ground terminals 5 but applied to power source terminals 6 over a small range from the terminal tip, and applied to signal terminals 7 over a wider range than to the power source terminals 6. at the time of connecting the male connector 1 to the female connector 2, the electrical connection is made with the coating Ic8 from the terminals 5 for releasing static electrically, followed by the connection with the terminals 7, and finally with the terminals 7 when connected to the full depth. at the time of pulling out the connector 1 from the connector 2, shutoff is made in the reverse sequence to that described above in the order of terminals 7, 6, and 5 so that sparks occurring between the terminals 6 and the corresponding female contacts 4 is released to the ground through the terminals 5. In comparison to the connectors having different terminal length, there is no possibility of the terminals being bent or buckled. Manufacturing process are also simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a male connector, and more particularly to a connector having an electrical connection order connection function.

[Conventional technology]

Conventional connectors of this type include one in which the length of the terminal is changed as shown in FIG. 4, and one in which the position of the female contact is shifted as shown in FIG.

A male connector with different terminal lengths as shown in Figure 4 has a grounding terminal 9. Three types of terminals, power terminals 10, 11 and signal terminals 12, of different lengths are provided. When this male connector 14 is inserted into the female connector 13, the grounding terminal 9 first comes into contact with the female contact 15, an electrical connection is established, and static electricity and noise are removed.

Next, the power supply terminals 10, 11 are connected, and then a large number of signal terminals 12 are connected, and the connector functions for the first time.

As shown in FIG. 5, the female contacts 13 are shifted, and the female contacts 16, 16, 17, 18, 17, 18, 17, 18, 17, 18, 18, 17, 18, 17, 18, 17, 18, 18, 17, 18, 17, 18, 17, 18, 18, 17, 18, 18, 17, 18, 18, 18, 16, 16, 18, 18, 18, 17, 18, 17, 18 , 18, 18, 16, 18 , 18, 18, 18, 16, 18 . It has a signal female contact 19. In each female contact 13, the grounding female contact 18 is located closest to the insertion surface of the +* connector terminal 20, followed by the power female contact 17.
．． A signal female contact 19 is located at the deepest position at 18 degrees. A large number of connector terminals 20 inserted into this female contact 13 are all the same length, but the female contact 1
3, the terminal 20 inserted into the grounding female contact 16 located near the insertion surface first establishes an electrical connection. Next, female contact 17 for power supply
．． 18 and the terminal 20 inserted therein are connected, and finally the signal female contact 19 is inserted into the terminal 2
Connected to 0.

[Problem to be solved by the invention]

The conventional connectors mentioned above all use terminals of different lengths, so terminals of different lengths are prepared in the process of (5).
This obviously requires more steps in the processing of the terminal than for a single length terminal. Also, for terminals of the same length, it was possible to do it all at once when inserting them into a housing, etc., but this is not possible with terminals of different lengths, and it is necessary to increase the process for each type of length. There is. Furthermore, when inserting into the female contact (Fig. 4), the longest terminal 9 is inserted into the female contact 13 first, but in the initial stage, only the longest terminal 9 is inserted into the female contact 13 as shown in Fig. 6. Compared to connectors with the same terminal length, when just connected, the lateral force applied at the initial stage of insertion concentrates only on the longest terminal, causing "sagging" and, in the worst case, bending or buckling. There is also fear. In addition, if the female contact 13 position is shifted, the shape of the female contact housing must not be made more complicated, and, like connectors with different length terminals, female contacts with different lengths are prepared, which increases the process. There was a problem.

Further, these connectors simultaneously electrically connect when the male contact 14 and the female contact 13 are brought into mechanical contact. In other words, errors in the order of connection are likely to occur due to misalignment of the contacts, and in order to prevent this, it is necessary to increase the amount of misalignment, which has the disadvantage of increasing the size of the contact itself.

SUMMARY OF THE INVENTION An object of the present invention is to provide a male contact which solves the above-mentioned drawbacks and prevents accidents such as bending or buckling of the terminals.

[Means to solve the problem]

The structure of the present invention is characterized in that, in a male connector in which a large number of connector terminals for electrically connecting with female contacts are arranged, the front Me square terminal is partially coated with an insulating film. .

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a sectional view of a female connector according to a first embodiment of the present invention.

In FIG. 1, the male connector 1 and the female connector 2 of this embodiment are connector terminals 3 having the same length of the rod Q.
．． It has a female contact 4.

Here, the connector terminal 3 has three types of terminals: a ground terminal 5, a power supply terminal 6, and a signal terminal 7. One earth terminal 5 is not coated with an insulating film 8, but the two power terminals 6 are coated with an insulating film 8 from the tip to a small area,
Further, the signal terminal 7 is coated with an insulating film 8 over a wider area from the tip than the power terminal 6.

When the male connector 1 and the female connector 2 are about to be mated together, at the initial stage, the tip of each connector terminal 3 contacts the female contact 4, and 1. At this time, even if the power supply terminal 6 and the signal terminal 7 are in contact with each other due to the insulating film coating 8, no electrical connection is established. At this point, only the grounding terminal 5 is electrically connected, through which static air can be cooled and flowed. Then, when the connector terminal 3 is inserted into the female contact 4 to about half of the terminal length, the part of the power supply terminal 6 that is not coated with the insulating film coating 8 comes into contact with the female contact 4, and an electrical connection is established. , power is supplied. Then, only when the male connector 1 and the female connector 2 are completely fitted together, the signal terminal 7 becomes electrically connected to the female contact 4.

In addition, when removing the connector, first, the male connector 1 begins to separate from the female connector 2, and soon the insulating film coating 8 of the signal terminal 7 comes to the contact point of the female contact 4, cutting off the electrical connection.

At this point, the ground terminal 5 and the power supply terminal 6 are still connected. When the power supply terminal 6 is further removed, the electrical connection of the power supply terminal 6 is cut off by the insulating film coating 8. At this time, the power supply terminal 6 and the corresponding female contact 4
Since the grounding terminal 5 is still connected, any spark that occurs between the two can flow to the ground through this.

The grounding terminal 5 maintains electrical connection until the male connector 1 is completely separated from the female connector 2.

FIG. 2 is a perspective view of a female connector according to a second embodiment of the present invention. In FIG. 2, the connector of this embodiment has a low friction coefficient (for example, μ<0.1) at the tip of the connector terminal 3.
) is applied with an insulating film coating 8. Figure 2 (B
) shows data on the insertion force of the connector terminal 3 in FIG. 2(A). A peak of insertion force occurs at the run-on portion 30 of the connector terminal 3. By coating this portion with an insulating film 8 having a low coefficient of friction, the peak value can be lowered as shown by the solid line 41 in the figure.

Conventionally, as shown by the broken line 40, since there is no coating, the peak value of the insertion force when riding on the female contact 4 is high, and damage, bending, etc. occur at this time.

A common method for applying the insulating film coating 8 to the connector terminal 3 of the male connector shown in FIG. 1 or FIG. 2(A) is to apply the coating after masking. Figure 3 shows the first
FIG. 3 is a front view showing an example in which masking 44 is applied to the male connector 1 shown in the figure. By performing painting after masking 44 in this manner, production can be performed in a short time, and mass production can be achieved through automation, resulting in cost reduction.

〔Effect of the invention〕

As explained above, the present invention provides electrical connection order by coating the terminals with different insulating films according to their roles, and makes the terminals more flexible than connectors with different terminal lengths. There is no need to worry about sagging or bending, and the process is also simple.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a male connector according to a first embodiment of the present invention, FIG. 2 (A) is a perspective view of a male connector according to a second embodiment of the present invention, and FIG. Characteristic diagram of figure (A), 3rd
The figure is a plan view showing the method of coating the terminals of the male connector shown in Fig. 1, Fig. 4 is a side view showing the first example of the conventional technique, and Fig. 5 is the second example of the conventional technique. Side view showing,
FIG. 6 is a side view showing the drawbacks of the first example of the prior art. King, 14...male connector, 2.13...female connector, 3...connector terminal, 4.15-...female contact, 5...earth terminal, 6...power supply terminal,
7... Signal terminal, 8... Insulating film coating,
9... Earth terminal, 10.11... Power supply terminal,
12... Signal terminal, 16... Female contact for ground, 17... Female contact for power supply, 18... Female contact for power supply, 19... Female contact for signal, 20... Connector terminal , 30...Rounding part, 4
0...broken line, 41...solid line, 44...masking.

Claims (1)

[Claims] 1. A male connector in which a large number of connector terminals for electrical connection with female contacts are arranged, characterized in that the connector terminals are partially covered with an insulating film. . 2. The male connector according to claim 1, wherein the area covered with the insulating film differs depending on the connector terminal. 3. The male connector according to claim 1, wherein at least a portion of the connector terminal on which the female contact rides is covered with an insulating film having a low coefficient of friction.