JP5364687B2 - Wire relay connector - Google Patents

Description

  The present invention relates to a wire relay connector used for connecting and energizing two wires. In particular, the present invention relates to a wire relay connector having a structure suitable for energization between minute and minute weak wires such as communication cables.

  Conventionally, a wire relay connector for connecting and energizing such wires is well known, and a variety of shapes have already been manufactured and used. A connector used to energize minute and weak weak wires such as communication cables is already known.

  Furthermore, a connector for connecting minute and minute weak wires such as a communication cable, and a pressure welding in which a coated wire is press-fitted into a pressure welding groove formed in a predetermined width without peeling off the cable coating. An energization method is also known (see Patent Document 1).

  On the other hand, a connector formed so that two connectors can be fitted and connected with the left and right sides and the top and bottom opposite to each other is also known (see Patent Document 2).

JP 2005-149935 A Japanese Utility Model Publication No. 3-127780

  The former Patent Document 1 shows a pressure-joint joint connector, which has a structure in which a plurality of covered electric wires are arranged in parallel and are press-fitted into a plurality of pressure-contact terminals each having a predetermined-width pressure-contact groove. A pressure contact energizing structure is shown. However, the structure of the connection terminal portion for conducting the energization connection is a fitting structure having different shapes of the male terminal on the insertion side and the female terminal for receiving the male terminal, and therefore covers these connection terminal portions. The structure of the first housing and the second housing is also a large and small deformed structure that fits inside and outside, and in manufacturing, the connector and the housing require separate male and female molds, and separate male and female assembly is required. It has an inconvenient structure in that it must be sold as a set.

  Further, the latter patent document 2 shows a connector, which shows a structure in which two connectors can be connected to each other upside down and horizontally. However, even in the connector described here, the structure of the connection member that performs energization connection is assumed to be provided with a terminal portion and a blade receiving spring, and the structure of this blade receiving spring is divided into two parts by a split groove. The upper blade receiving spring is slidably held by a sliding blade that is moved back and forth by operating a slide button connected to the sliding blade holding member, and the other blade is inserted into the lower blade receiving spring. The blade receiving spring structure is configured so that electrical connection is achieved, that is, the upper sliding blade is the male terminal on the insertion side, and the lower blade receiving spring is the female terminal that receives the male terminal. In this structure, the odd-shaped sliding blade and the blade receiving spring are electrically connected by sliding operation of the sliding blade holding member. Further, in the connector shown here, in addition to the connection member, a lock / guide member provided at a portion where the engaging portion protrudes from the case is engaged with a locking piece provided on the slide button. It has a structure that prevents them from coming off together. Therefore, as a whole, the number of parts is large, the structure is complicated, the manufacture and assembly are not easy, and there is a problem that the cost must be high.

  Therefore, the present invention is a connector developed on the basis of a completely new idea that can solve the above-mentioned problems that such conventionally known connectors have, and has a metal contact body that performs energization connection. A single body made of a single good conductor metal plate, and the contact body can be connected to the covered wire with a one-touch connection. The insulating resin housing that covers the contact body is also a simple connector cover, and its tip side The structure can be fitted and connected with the left and right and top and bottom reversed, and the two connectors can be fitted and connected with the left and right and top and bottom reversed, and the two connectors are electrically connected A wire relay connector with a structure that can complete the removal prevention function at the same time that it is connected to the cable with a simple structure as a whole. Easy, there is provided an electric wire relay connector to be able to be produced at low cost here.

  The configuration of the wire relay connector according to the present invention taken to achieve the object will be described. The contact body 1 is formed of a single good conductor metal plate, and the insulating resin housing 2 covers the contact body 1. The contact body 1 is provided with a covered wire pressure contact energizing groove 11 on the rear end side, an intermediate portion is provided with a retaining protrusion 12 engaged with the housing 2, and a contact portion 13 is provided on the front end side. The rear end portion is formed in a shape having parallel walls 14, 14 such as a U-shape or a □ -shape, and the front end portion is cut off the lower half wall and only the upper half wall protrudes forward. The outer walls of the two protruding walls 15 and 15 and the inner surfaces of the parallel walls 14 and 14 are in contact with each other when the connectors are in contact with each other. 2 includes a wire insertion hole 21 on one end side, and an engagement step portion 22 that engages with the retaining protrusion 12 of the contact main body 1 on the inner surface on the distal end side, and performs a retaining function when coupled to another housing. The structure is provided with a stop hole 23 and a locking projection 24, and the tip side is formed in a symmetrical shape that can be fitted to each other with the left and right and the top and bottom being reversed. It is a hermaphroditic structure that can be inserted into the left and right and upside down and can be electrically connected.

  Further, the configuration of the wire relay connector according to claim 2 is a configuration subordinate to the connector according to claim 1, and the two protruding walls 15, 15 are in contact with the inner surfaces of the parallel walls 14, 14. Therefore, the small protrusions 16 and 16 are provided so as to protrude toward the outer surface.

  The wire relay connector referred to in the present invention is a single body in which the contact body is molded with a single good conductor metal plate, and the insulating resin housing covering it is a simple cover with a small number of parts, and the shape on the tip side thereof The connector body has a shape that can be fitted to each other with the left and right and the top and bottom reversed, and the same connector can be fitted and connected with the right and left and the top and bottom reversed. The resin housing needs to be mass-produced as a single structure, requires fewer molds to form, and only one type of product is needed, and there is no need to sell it as a combined set for both male and female. The set work can be omitted, and the contact is provided with a current-carrying groove for pressure-contacting the coated wire, so that the customer can easily connect the coated wire with the one-touch operation. You can almost touch operation also connection of the connectors to each other, after connecting can be easily obtained a connector with a structure that can be used in the absence to automatically maintain easily detached connection state.

  Further, in the connector according to claim 2, since the two protruding walls project the small protrusions for contacting the inner surface of the parallel wall respectively toward the outer surface, these small protrusions are connected to the connector. There is an advantage that it can be brought into surface contact with the inner surface of the protruding wall, and a reliable energization connection is easily performed.

The front view of a contact body. The top view of FIG. The bottom view of FIG. The left view of FIG. The AA section cutting | disconnection end view of FIG. The BB part cutting | disconnection end elevation of FIG. CC sectional view of FIG. The DD section cutting | disconnection end view of FIG. EE section sectional drawing of FIG. FIG. The connection state explanatory drawing of contact main bodies. The external appearance front view of a housing. FIG. The bottom view. The left side view. The right side view. FIG. 3 is a perspective view in which two connectors are arranged to face each other. The center longitudinal cross-section front view for the connection state description of two connectors.

  The material of the good conductor metal plate forming the contact body 1 according to the present invention is preferably a copper-based material such as phosphor bronze, but may be an aluminum alloy-based material. In addition, as the insulating resin material forming the housing, for example, a polyester-based resin such as polycarbonate is preferable in terms of excellent impact resistance and mechanical strength, but any resin having excellent insulating properties may be used. There is no particular limitation.

  Embodiments of the present invention will be described below with reference to the drawings. The wire relay connector according to the present invention is composed of a contact body 1 formed entirely by a single phosphor bronze metal plate, and a polycarbonate housing 2 that inserts the contact body 1 and covers the entire outer periphery thereof. It is. First, the structure of the contact body 1 will be described with reference to FIGS. 1 to 10.

  The contact main body 1 has a longitudinal rear end side (left side in FIG. 2) portion L shown in FIGS. 1 to 3 as shown in the left side view of FIG. 4 and the CC sectional view of FIG. As shown in FIG. 17 to be described later, the coated electric wire 3 is press-fitted and the insulating coating 32 is peeled off to contact the electric wire 31 in the coating to energize it. As shown in FIGS. 4 and 7, two current-carrying walls 11a and 11a in which the pressure-contacting current-carrying groove 11 is cut downward from the upper edge portion are formed by raising the bottom wall.

  Next, the longitudinal intermediate portion M is formed in the shape of a square □ as shown in the AA cross section of FIG. 5, and the front portion of the cross section U is shown in the BB cross sectional view of FIG. The opposite walls are formed as parallel walls 14, 14. Further, the tip end portion N is composed of two projecting walls 15 and 15 projecting substantially parallel toward the front as a shape in which only the upper half wall is left by cutting the lower half wall as shown in the front view of FIG. A contact portion 13 is formed. Further, a retaining protrusion 12 that engages with an engagement step portion 22 of the housing 2, which will be described later, is formed on the upper wall 12a of the portion formed in the shape of the square □ so as to rise rearward and upward.

  The two projecting walls 15 and 15 are arranged so that the outer surfaces of the two projecting walls 15 and 15 are mutually in contact with the inner surfaces of the parallel walls 14 and 14 when the connectors are in contact with each other as will be described with reference to FIG. It is formed in the interval which contacts with electricity and energizes. In order to perform this contact energization more reliably, in the connector of this embodiment, the projecting walls 15, 15 are provided with small protrusions 16, 16 for making surface contact with the inner surfaces of the parallel walls 14, 14. Each of them protrudes toward the outer surface.

  Needless to say, the contact energization between the contact main bodies 1 having such a structure is inserted in the housing 2, and the two housings 2, 2 having a hermaphroditic structure are shown in a perspective view in FIG. This is done by inserting and fitting the left and right and up and down in opposite directions.

  In order to explain the connection state of the contact bodies 1, the plan view is shown in the upper, middle, and lower stages of FIG. First, as shown in the upper drawing, the two contact bodies 1, 1 that are separated from each other are moved in the insertion direction. Subsequently, as shown in the middle figure, with the contact parts 13 at the front ends positioned vertically in front view, the most advanced part moves to the position of the parallel walls 14 and 14 having a cross-sectional shape of a cross-section and further advances. Then, as shown in the lower figure, the contact portion 13 at the front end enters the parallel walls 14, 14 of the other party, and the opposing surfaces of these two portions, that is, the protruding walls 15, 15 constituting the contact portion 13, respectively. The outer side surface and the inner side surfaces of the parallel walls 14 and 14 are in elastic contact with each other and can be energized. Since the projecting walls 15 and 15 constituting the contact portion 13 shown in the embodiment are formed with small projections 16 and 16 projecting toward the outer surface side, respectively, the inner surfaces of the parallel walls 14 and 14 are defined as These small protrusions 16 and 16 are brought into surface contact with each other so that energization is possible.

  Next, the housing 2 that encloses the contact body 1 having such a structure in an insulated state will be described. The material for forming the housing 2 is not particularly limited as long as it is an insulating resin material, but the housing 2 shown in the embodiment is molded using a polycarbonate resin material.

  As shown in FIGS. 12 to 16, the structure is composed of a housing main body 20A and a lid 20B. The left half of the front view of FIG. 1, the rear end portion L in the longitudinal direction is accommodated, and the upper portion thereof is covered with the lid 20B. The lid 20B is used for electrical pressure welding of the covered electric wire 3 by placing the covered electric wire 3 on the current-carrying walls 11a and 11a of the contact main body 1 and then applying pressure to the housing main body 20A by applying pressure from above. By simultaneously pushing into the energization groove 11, the energization is possible as shown in FIG. At this time, the parallel wall 14 portion of the longitudinal intermediate portion M and the contact portion 13 of the tip end portion N of the contact body 1 are also arranged in the housing body 20A as shown in FIG.

  Thus, the housing 2 covers the intermediate portion M in the longitudinal direction and the tip end portion N of the contact body 1 as shown in the right side view of FIG. 16 and the external perspective view in which the two connectors of FIG. A predetermined length portion on the distal end side is divided into upper and lower portions, and is formed into a large flange portion 27 and a small insertion portion 28 that are sized to fit with each other, and a locking hole is formed in the large flange portion 27. 23, and a locking projection 24 is formed protruding from the symmetrical portion, and when the two bodies are connected, the locking hole 23 and the locking projection 24 are engaged with each other to perform a retaining function. is there.

  In other words, the housing 2 includes a wire insertion hole 21 on one end side as shown in the central longitudinal sectional view for explaining the connection state of the two connectors in FIG. The engagement step portion 22 that engages with the base portion of the large collar portion 27 is provided, and a locking hole 23 and a locking projection 24 are formed that serve to prevent the two housings 2 and 2 from being detached. It is what.

  Although each figure is greatly illustrated for easy understanding, if the size of the connector shown in this embodiment is described for reference, the left and right length of the contact body 1 shown in FIG. The left and right length of the housing 2 shown in Fig. 12 is about 25 to 27 mm. This size varies depending on the diameter of the covered electric wire to be connected and the size of the power transmission.

  The embodiment considered to be representative of the present invention has been described above. However, the present invention satisfies the above-described constituent requirements according to the present invention, achieves the above-mentioned object, and appropriately modifies it within the scope of the above-mentioned effects. Can be implemented.

  The connector according to the present invention has a great potential to be used in the market because not only the energization operation with the covered electric wire but also the connection between the connectors can be completed with an extremely simple one-touch operation. .

DESCRIPTION OF SYMBOLS 1 Contact main body 2 Housing 11 Current supply groove | channel 12 Detachment protrusion 13 Contact part 14 Parallel wall 15 Projection wall 16 Small protrusion 21 Electric wire insertion hole 22 Engagement step part 23 Locking hole 24 Locking protrusion

Claims (2)

Consists of a contact body (1) molded with a single good conductor metal plate and an insulating resin housing (2) covering it,
The contact body (1) is provided with a current-carrying groove (11) for covering wire pressure welding on the rear end side, a retaining protrusion (12) that engages with the housing (2) in the middle portion, and a contact portion (13 ), And the contact portion (13) is shaped so that the rear end portion has parallel walls (14, 14) such as a U-shape or a □ -shape, and the tip-side portion cuts out the lower half wall It is formed on two substantially parallel projecting walls (15, 15) with only a half wall projecting forward, and when contacting the connectors, the outer surface of these two projecting walls (15, 15) and the parallel wall (14, 15) 14) and the inner surface of each other
The housing (2) is provided with a wire insertion hole (21) on one end side, and an engagement step portion (22) that engages with a retaining protrusion (12) of the contact body (1) on the inner surface on the distal end side. With a locking hole (23) and a locking projection (24) that prevent locking when coupled to the housing, and with the shape of the tip side reversed from side to side and top to bottom It is formed in a symmetrical shape that can be fitted to
A wire relay connector that has a hermaphroditic structure that allows two connectors to be inserted in the left and right and upside down directions for electrical connection. The two projecting walls (15, 15) have a structure in which small protrusions (16, 16) for contacting the inner surfaces of the parallel walls (14, 14) are respectively projected toward the outer surfaces. The electric wire relay connector according to 1.

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