JP2007165221A - Pressure connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pressure connecting device which reduces force for connection. <P>SOLUTION: The pressure connector comprises a housing 1 in which a plurality of pressure connecting terminals 20A(20B) are formed upward and an electric wire holding member 10, formed rotatably against the housing, having a holding device of a plurality of coated electric wires corresponding to respective pressure connecting terminals. When the electric wire holding member is pressed down against the housing, each electric wire are pressed into a U-shaped slot 21A(21B) and conducted electricity. Timing of press fitting of each pressure connecting terminal and each wire for every group is shifted in a synchronized manner with press down angles of the wire holding member. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a pressure contact connector for use in in-home wiring intended for terminal devices such as telephones and various communication devices, and more specifically, realizes electrical continuity with an electric wire with a single touch using a pressure contact terminal having a U-shaped slot. The present invention relates to a pressure contact connector.

2. Description of the Related Art A pressure contact connector is known in which a covered electric wire is press-fitted into a U-shaped slot of a press contact terminal, thereby cutting a covered portion of the electric wire by the slot and conducting electrical connection. Further, the housing includes a housing in which the press contact terminal is provided upward and an electric wire holding member that is rotatably provided with respect to the housing. Each electric wire held by the electric wire holding member by pushing down the electric wire holding member with respect to the housing is connected to the U of each press contact terminal. A press-connecting connector that is press-fitted into a character slot is also known (Patent Document 1).
No. 7-19089 JP-A-4-48569 JP 3259130 A

  Similarly, as a connector that can be connected with one touch, an S clamp terminal is known in which an electric wire is inserted between an S spring and a metal spring housing to conduct electricity, but a connector provided with a pressure contact terminal having a U-shaped slot as described above is provided. Since the metal part is small, the capacity between terminals is small and crosstalk control is easy, so it is most suitable for high-speed LAN lines. However, this type of connector has a problem in that a large force is required for pressure contact due to a structure in which a covered portion of the wire is cut by a slot to achieve press contact conduction by press-fitting a covered wire, and in particular, a plurality of terminals are connected. In the case of the connector having this, the pressure contact force increases according to the number of terminals, and this problem has become apparent.

  The present invention was created for the purpose of providing a press contact terminal that solves the above-described problems of the prior art, and is provided with a housing in which a plurality of press contact terminals are provided upward, and is rotatable with respect to the housing. And a wire holding member having a plurality of covered wire holding means corresponding to each of the press contact terminals, and each wire held by the wire holding member by pushing down the wire hold member with respect to the housing. In the press contact terminal for press-fitting into the slot, the press-fit timing for each set of each press contact terminal and each electric wire is shifted in synchronization with the push-down angle of the wire holding member.

  In addition, here, as a means of shifting the press-fitting timing of each set of each press contact terminal and each wire in synchronization with the push-down angle of the wire holding member, (1) Also disclosed is a structure in which the height of the press contact of each press contact terminal is shifted up and down.

  In a press-connecting connector in which a covered electric wire is press-fitted into a U-shaped slot of a press-contact terminal to cut the covered portion of the electric wire by the slot and conduct electricity, the electric wire is further conducted and then pushed down in the slot. In connection with this, the inventors of the present invention, as a result of the experiment, have the maximum push-down force when the covered portion of the wire is cut and the wire is completely sandwiched in the slot. The value was found to be stable. This is considered to be due to the effect that the contact area becomes constant due to the plastic deformation of the wire itself when the core of the wire is completely sandwiched in the slot.

  The inventors of the present application have conceived the present invention based on the above knowledge, and by shifting the press-fitting timing for each set of each press contact terminal and each electric wire in synchronization with the push-down angle of the electric wire holding member, Adjustment is made so that the movements in which the covering portion is cut and the electric wire completely fits in the slot do not occur at the same time for each pair so that the maximum push-down force does not overlap. Therefore, according to this invention, even if the number of terminals increases, it is possible to realize a pressure contact connector that can realize a reliable connection without requiring a strong pressing force.

  Specific embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 19 are views showing a first embodiment of the pressure contact connector of the present invention. The pressure contact connector of the present invention includes a housing 1 provided with pressure contact terminals 20A (20B) facing upward, and an electric wire holding member 10 provided so as to be rotatable with respect to the housing. Here, a connector having two terminals is illustrated.

  The electric wire holding member 10 serves as a pivot support means with respect to the housing by inserting shaft pins 11, 11 protruding at both ends in the width direction into shaft holes 3, 3 provided in both side walls 2, 2 of the housing 1. Further, the latching hole 16 provided below the front plate 12 suspended from the front end of the electric wire holding member 10 is elastically latched by the latching projection 4 projecting from the front end of the housing 1 when the push-down is completed. The rotation fixing means.

  The electric wire holding member 10 serves as a holding means for the covered electric wire L by passing through the electric wire insertion hole 13A (13B) from the front plate 12 to the rear end, and opens at the lower end of the electric wire holding member in the middle of the electric wire insertion hole. The notch groove portion 14A (14B) is interposed to provide an entry location for the pressure contact terminal 20A (20B) (see particularly FIGS. 5 to 8). Further, at the position where the electric wire L inserted at the bottom of the notch groove portion 14A (14B) is located, the height contacting the electric wire and the U-shaped slot 21A (21B) of the press contact terminal 20A (20B) can be inserted. By projecting ribs 17A (17B) having an appropriate width and bringing the electric wires into contact with each other, the electric wires are prevented from bending upward during press-fitting (particularly, see FIGS. 6 to 8). By doing so, the electric wire L can be securely sandwiched in the U-shaped slot 21A (21B) at the time of press-fitting, and the press-fitting timing for each set of each press-contact terminal and each electric wire becomes accurate, and the operation of the present invention is ensured. It can be realized.

  The press contact terminal 20A (20B) erected on the housing 1 has a configuration in which a U-shaped slot 21A (21B) having a depth to which the electric wire L is further lowered after being press-fitted into the upper end of the metal plate is provided. Become. Here, by forming both side surfaces and openings of the U-shaped slots 21A and 21B into sharp contact blades, the resistance required to cut the covered portion of the electric wire L during press-fitting is reduced, and the U-shaped slots of the press-fitted by the press-fitting are reduced. Deformation is suppressed. Thus, for example, even if a small-diameter electric wire is inserted after inserting a large-diameter electric wire, the U-shaped slot does not expand and is not deformed. Realized.

  In the above embodiment, as shown in the figure, the front and rear positions of the respective press contact terminals 20A (20B) and the notch grooves 14A (14B) corresponding thereto are shaft pins 11, 11 which are pivots of the electric wire holding member 10. As a means to shift the press-fitting timing of each set of each press contact terminal and each electric wire in synchronization with the push-down angle of the electric wire holding member. FIG. 14 to FIG. 19 are diagrams showing the details. Here, the press contact terminal 20A and the notch groove portion 14A corresponding to the press contact terminal 20A are also shifted to positions far from the pivot point of rotation with respect to the press contact terminal 20B and the notch groove portion 14B. As a result, as the electric wire holding member 10 is pushed down, the pair of the press contact terminal 20B and the electric wire L on the side close to the fulcrum first hits the press fitting point, and then the set of the press contact terminal 20A and the electric wire L on the side far from the fulcrum becomes the press fit point. It will come soon. In this case, as described above, the force required to push down the electric wire holding member is maximized at the press-fitting point where the covered portion of the electric wire is cut and the electric wire is completely sandwiched in the slot. At the point in time when the set of the far side press contact terminal 20A and the electric wire L reaches the press-fit point, the press contact terminal 20B and the electric wire L set near the fulcrum has already passed the press-fit point. The pressure welding is realized with a small pressing force without being sometimes weighted.

  In this embodiment, a plurality of notches 15A and 15B provided at the upper ends of both side walls 2 and 2 of the housing 1 are provided with notch claws 15 and 15 projecting at both ends in the width direction of the electric wire holding member 10 with rotation. The wire holding member is temporarily fixed to the housing at predetermined angles (90 ° and 45 ° in this case) by sequentially elastically locking to each other (see FIGS. 11 to 13). Thereby, the electric wire holding member can be held at a predetermined position, the electric wire can be easily inserted, and the connection work is facilitated regardless of the mounting direction of the connector. In this embodiment, the wire holding member 10 is made of a transparent material so that the insertion state of the wire L can be visually confirmed, thereby making the above work easier.

  20 to 25 are views showing a second embodiment of the present invention. In this embodiment, means for shifting the press-fitting timing of each set of each press-contact terminal and each electric wire in synchronization with the push-down angle of the electric wire holding member by shifting the height of the press contact of each press-contact terminal 20A (20B) up and down. It is said. Here, the height of the press contact terminal 20A is shifted to a position lower than the press contact terminal 20B. As a result, as the electric wire holding member 10 is pushed down, the set of the high pressure contact terminal 20B and the electric wire L first hits the press-fitting point, and the lower press contact terminal 20A and the electric wire L hits the press-fitting point. Become. FIG. 32 is a graph obtained by actually measuring the relationship between the pressing displacement and the pressing force in that case, but the maximum pressing force is reduced by 17% compared to the comparative example in which the heights of the pressure contact terminals are the same. I understand that. Since the remaining configuration of this embodiment is the same as that of the first embodiment, description thereof is omitted here.

  26 to 31 are views showing a third embodiment of the present invention. This embodiment is a combination of the configuration of the first embodiment and the configuration of the second embodiment. The front and rear positions of the respective press contact terminals 20A (20B) and the corresponding notch grooves 14A (14B) are held by electric wires. Press fitting for each set of each press contact terminal and each electric wire is performed by shifting with respect to the shaft pins 11 and 11 which are pivots of rotation of the member 10 and shifting the height of the press contact of each press contact terminal 20A (20B) up and down. It is a means for shifting the timing in synchronization with the pressing angle of the electric wire holding member. Since the remaining configuration of this embodiment is the same as that of the first embodiment, description thereof is omitted here.

The disassembled perspective view of the pressure-contact connector of this invention. The perspective view of use condition same as the above. The perspective view of use condition same as the above. The perspective view of use condition same as the above. The perspective view of an electric wire holding member same as the above. The perspective view of the state which observed the electric wire holding member from the back surface same as the above. FIG. Sectional drawing of pressure contact location vicinity same as the above. The front view of the principal part of a press-contact terminal same as the above. The top view of a press-contact terminal same as the above. Same as above, side view in use. Same as above, side view in use. Same as above, side view in use. The top view of a housing same as the above. The front view of a housing same as the above. FIG. FIG. FIG. FIG. The top view of the housing of 2nd Example of the press-contact connector of this invention. The front view of a housing same as the above. FIG. FIG. FIG. FIG. The top view of the housing of 3rd Example of the press-contact connector of this invention. The front view of a housing same as the above. FIG. FIG. FIG. FIG. The graph which shows the relationship between the pressing-down displacement and pressing-down force of the electric wire holding member of 2nd Example of the press-contact connector of this invention

Explanation of symbols

L electric wire 1 housing 10 electric wire holding member 13A electric wire insertion hole 13B electric wire insertion hole 20A pressure contact terminal 20B pressure contact terminal

Claims (4)

  A housing having a plurality of press contact terminals facing upward, and a wire holding member that is provided so as to be rotatable with respect to the housing and has a plurality of covered wire holding means corresponding to each of the press contact terminals. The press-fitting timing for each set of each press-contact terminal and each electric wire is held in the press-contact terminal for press-fitting each electric wire held by the electric wire holding member by pushing down the holding member into the U-shaped slot of each press-contact terminal. A pressure contact connector that is shifted in synchronization with a pressing angle of a member.   By shifting the front / rear position of each press contact terminal with respect to the fulcrum of rotation of the wire holding member, the press fitting timing for each set of each press contact terminal and each wire is shifted in synchronization with the push-down angle of the wire holding member. Item 1. The pressure contact connector according to Item 1.   The press contact according to claim 1, wherein the press contact timing of each set of each press contact terminal and each electric wire is shifted in synchronism with the pressing angle of the electric wire holding member by shifting the height of the press contact of each press contact terminal up and down. connector. A means for holding the electric wire by inserting the electric wire from the electric wire insertion hole provided at one end of the electric wire holding member, and a notch groove opening at the lower end of the electric wire holding member is interposed in the middle of the electric wire insertion hole. And a rib having a height that is in contact with the wire and a width that can be inserted into the U-shaped slot of the pressure contact terminal at a location where the wire inserted at the bottom of the notch groove portion is located. The press-connecting connector according to any one of claims 1 to 3, wherein the connector is protruded.

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