JP3107322U - Wire insertion confirmation structure of harness joint box - Google Patents

Abstract

【Task】
Conventionally, connection and disconnection are possible with one touch, and there are some that can be confirmed from the outside, but the structure is complicated.
[Solution]
In the harness joint box 1, the present invention includes a coil spring storage portion 1ba that stores a coil spring 5 provided in a lower case 1b, and a spring contact portion that a coil spring 5 provided outside the coil spring storage portion contacts. 6a, a contact portion 6b for electric wire, a slider housing portion 1bb for housing a slider 6 provided with a marker push-up portion 6c, and a contact terminal 2a extended from a terminal fitting 2 provided outside the slider housing portion. A terminal storage portion 1bc for storing the stop terminal 2b, a marker storage portion 1aa for storing the marker 7 and the marker coil spring 7a movably provided in the upper case 1a, and a locking terminal 2b. An external hole 8 was provided.
[Selection]
FIG.

Description

  The present invention relates to a wire insertion confirmation structure of a harness joint box, and more specifically, by connecting a bare wire in the harness joint box to make an electrical connection with a single touch, and the marker is exposed and electrically connected. The present invention relates to a wire joint confirmation structure for a harness joint box that can be confirmed to be connected, and can be removed with one touch by inserting a screwdriver or the like into a hole for removal.

  2. Description of the Related Art Conventionally, terminal blocks such as these harness joint boxes have been developed and used for one-touch wire connection and release operations and for checking the connection state from the outside.

For example, insulating covers 5 and 6 are integrally formed on the upper and lower surfaces of the main body 1 so as to be openable and closable. Engaging pieces 7 having elasticity are formed on both sides of the cover 5. An engagement hole 8 into which the engagement piece 7 is inserted and engaged is formed in the cover 6. Three holes 9 are perforated in the cover 6 according to the number of core wires of the electric wire. The electric wire 11 is a stranded wire and has a three-core structure. The crimp terminal 13 for crimping the conductor of the electric wire 11 is a rod type, and is crimped to the conductor 12 at its base. The crimp terminal 13 and the conductor 12 of the electric wire 11 are caulked and connected, and the crimp terminal 13 is inserted into the hole 2 of the main body 1. Both covers 5 and 6 are closed to hold the electric wire 11, and the engagement piece 7 is inserted into the engagement hole 8 to be fitted (see Patent Document 1), or the conductor insertion hole 3 is inserted into the housing 2. A connecting mechanism storage section 4 and a conductor connection confirmation mechanism storage section 5 are provided, and a connection terminal plate 6 is attached to the connection mechanism storage section 4 along the extended surface of the inner walls of the conductor insertion holes 3a and 3b. A conductor retaining piece 8 and a conductor pressing piece 9 are sequentially mounted in opposite positions along the conductor insertion direction, and a wedge motion direction conversion mechanism 14 biased by a spring 13 is provided in the conductor connection confirmation mechanism housing section 5. The wedge movement direction conversion mechanism 14 is mounted, and a connection confirmation display piece 18 having a display surface 19 is integrally provided (see Patent Document 2), or a wire core wire is inserted into the main body 1. Inserted through the wire insertion port 4a and the wire insertion port 4a A terminal block 6 which core line is provided with a connecting portion 5 connected. A device is disclosed in which a connection button 5 is provided with a display button 7 that is actuated by a core wire and displays the connection state of the core wire on the outer surface side of the main body 1 only when the core wire is normally connected (see Patent Document 3). ing.
JP-A-5-21104 JP 9-283192 A JP-A-8-264217

  However, insulating covers 5 and 6 are integrally formed on the upper and lower surfaces of the main body 1 so as to be openable and closable. Engaging pieces 7 having elasticity are formed on both sides of the cover 5. An engagement hole 8 into which the engagement piece 7 is inserted and engaged is formed in the cover 6. Three holes 9 are perforated in the cover 6 according to the number of core wires of the electric wire. The electric wire 11 is a stranded wire and has a three-core structure. The crimp terminal 13 for crimping the conductor of the electric wire 11 is a rod type, and is crimped to the conductor 12 at its base. The crimp terminal 13 and the conductor 12 of the electric wire 11 are caulked and connected, and the crimp terminal 13 is inserted into the hole 2 of the main body 1. In the case where both the covers 5 and 6 are closed and the electric wire 11 is clamped, and the engagement piece 7 is inserted into the engagement hole 8 to be fitted, the electric wire is connected to the crimp terminal, and a confirmation hole Although not provided, it is not applicable to harness joint boxes.

  Further, a connection mechanism storage section 4 that leads to the conductor insertion hole 3 and a conductor connection confirmation mechanism storage section 5 are provided inside the housing 2, and the connection mechanism storage section 4 has an extended surface of the inner walls of the conductor insertion holes 3 a and 3 b. The connection terminal plate 6 is mounted along the conductors, and the conductor retaining pieces 8 and the conductor pressing pieces 9 are sequentially mounted in the opposing positions along the conductor insertion direction. The wedge motion direction converting mechanism 14 biased by the above-mentioned structure is mounted, and the wedge motion direction converting mechanism 14 is integrally provided with a connection confirmation display piece 18 having a display surface 19, and can be connected with one touch. Although the connection can be confirmed, a conductor is inserted in the vertical direction of the housing 2, and it is not suitable for connecting from a horizontal direction to a horizontally thin housing such as a harness joint box that is widely used nowadays. Is

  Furthermore, the terminal block 6 is provided with a wire insertion port 4a for inserting the core wire of the electric wire and a connection portion 5 to which the core wire of the electric wire inserted from the wire insertion port 4a is connected to the main body 1. In the case where the connection button 5 is provided with the display button 7 which is operated by the core wire only in a state where the core wire of the electric wire is normally connected and displays the connection state of the core wire on the outer surface side of the main body 1, a specific configuration is described. Although it is unclear, connection and removal are possible with one touch, and the display of the connection can be confirmed from the outside, but the structure is complicated.

  The wire joint confirmation structure of the harness joint box of the present invention is based on the above-mentioned problems. In a harness joint box having a plug blade insertion hole through which the insertion hole and at least two sets of harness plug blades are inserted, a coil spring storage portion that stores a coil spring provided inward on the extension line of the wire insertion hole of the lower case; , A spring abutting portion on which the coil spring abutting on the coil spring abutting portion abuts, a slider abutting portion for the electric wire, a slider having a marker push-up portion, and a slider accommodating portion on the outside of the slider accommodating portion A terminal storage part for storing a contact terminal and a locking terminal extended from a terminal fitting provided protruding from the electric wire insertion hole, and an electric wire insertion of the upper case And the marker housing part for housing the marker coil spring imparting elasticity to the marker and the marker provided on the extension of, in which a Togaiyo holes immediately above the locking pin.

  The wire joint confirmation structure of the harness joint box of the present invention elastically deforms the contact terminal and the locking terminal extending from the terminal fitting by inserting a rod-shaped bare electric wire into the electric wire insertion hole and bringing them into contact with each other. With this, one-touch electrical connection is possible, and at the time of connection, the wire abutment is pressed at the tip of the wire and the slider is slid, the marker push-up of the slider pushes up the marker, and the marker is the coil spring for the marker. By exposing the tip to the upper case against elasticity, the connection state can be confirmed from the outside, and the connection of the harness joint box is facilitated and the reliability is improved.

  The present invention relates to a wire insertion confirmation structure of a harness joint box. More specifically, by inserting a bare wire A in the harness joint box 1, electrical connection is made with one touch and the marker 7 is exposed. The wire connection confirmation structure of the harness joint box can be confirmed with one touch by inserting a screwdriver or the like into the removal hole, and can be connected to the upper case 1a and the lower case 1b. In the harness joint box 1 having three sets of terminal fittings 2 and having a wire insertion hole 3 provided on each of the power supply side and the feeding side and a plug blade insertion hole 4 for inserting at least two sets of harness plug blades, A carp that always provides elasticity in the outward direction provided inward of the extension line of the wire insertion hole 3 of the case 1b. A coil spring storage portion 1ba that stores the spring 5, a spring contact portion 6a that contacts the coil spring 5 provided outside the coil spring storage portion 1ba, a wire contact portion 6b, and a marker push-up portion 6c are provided. A slider housing portion 1bb for slidably housing the slider 6, and a contact terminal 2a extending from the terminal fitting 2 provided to protrude outside the slider housing portion 1bb into the wire insertion hole 3. The terminal accommodating portion 1bc that accommodates the locking terminal 2b, the marker 7 provided on the extension line of the wire insertion hole 3 of the upper case 1a, and the marker 7 that is movable in the vertical direction, and the marker 7 are always provided with downward elasticity. A marker storage portion 1aa for storing the marker coil spring 7a, and a removal hole 8 for releasing the connection immediately above the locking terminal 2b. That.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a wire joint confirmation structure for a harness joint box according to an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 shows an embodiment of a four-branch harness with a wire joint confirmation structure for a harness joint box according to the present invention. FIG. 2 is a plan view of a state where the upper case is removed for explaining an example of the two-branch harness of the wire insertion confirmation structure of the harness joint box of the present invention, FIG. 3 is a cross-sectional view of a main part for explaining an embodiment of the wire joint confirmation structure of the harness joint box of the present invention.

  That is, the harness joint box 1 of the present invention is inserted into the electric wire insertion hole 3 provided on the power supply side and the feeding side, which will be described later, with the end of the three-core copper wire as the bare electric wire A, or the three-core of the stranded wire. The plug blade insertion hole 4 through which the plug blade of the branching harness plug is inserted has a blade receiving portion extending from the terminal fitting 2 to be described later. At least two sets are provided, and as shown in FIG. 1 or FIG. 2, in the embodiment, four sets of plug blade insertion holes 4 or two sets of plug blade insertion holes 4 are provided.

  And three sets of terminal fittings 2 made of copper are provided between an upper case 1a and a lower case 1b formed of an insulating synthetic resin, and each terminal fitting 2 has a contact terminal 2a to be described later. And the locking terminal 2b and the blade receiving portion, which are the same as the well-known harness joint box 1.

  Next, the coil spring accommodating portion 1ba is provided inwardly on the extension line of the electric wire insertion hole 3 of the lower case 1b. As shown in FIG. 3, each of the power supply side and the feeding side of the lower case 1b is provided. A spring fixing portion is provided in the center of the electric wire insertion hole 3 to house the coil spring 5, and the coil spring 5 is always provided with elasticity in the outward direction. The contact portion 6a is repressed.

  Next, the slider accommodating portion 1bb is provided outside the coil spring accommodating portion 1ba and accommodates the slider 6 so as to be slidable. The slider 6 is elastically pressed by the coil spring 5 as shown in FIG. A U-shaped spring contact portion 6a, a wire contact portion 6b whose tip abuts and is pressed when the electric wire A is inserted, and an inner direction for pushing up a marker 7 described later is low and an outer direction is high. A marker push-up portion 6c having a tapered surface is formed.

  Further, the terminal storage portion 1bc is provided outside the slider storage portion 1bb. The terminal storage portion 1bc is connected to the contact terminal 2a that contacts the electric wire A extended from the terminal fitting 2 and makes an electrical connection. The locking terminal 2b is protruded in the center direction from the inner diameter of the wire insertion hole 3. As shown in FIG. 3, the contact terminal 2a is formed in a substantially two-shaped side surface. The stop terminal 2b is inclined so as to bite in the direction in which the electric wire A comes off.

  Further, the marker storage portion 1aa is provided on the extension line of the wire insertion hole 3 of the upper case 1a, and stores the marker 7 and the coil spring 7a for the marker. The marker 7 is movable in the vertical direction. The coil spring 7a always gives elasticity to the marker 7 in the downward direction, and the lower end of the marker 7 keeps the state protruding above the marker push-up portion 6c of the slider 6.

  The removal hole 8 is formed directly above the locking terminal 2b of the upper case 1a, and a cutting edge such as a screwdriver is inserted into the removal hole 8 to press the locking terminal 2b downward. This is for releasing the connection.

  That is, the wire insertion confirmation structure of the harness joint box according to the present invention is related to the contact terminal 2 a extended to the terminal fitting 2 by inserting the rod-shaped electric wire A through the wire insertion hole 3 of the harness joint box 1. By pushing down the stopper terminal 2b while being elastically deformed and further inserting it, the tip of the electric wire A comes into contact with the electric wire contact portion 6b and presses the slider 6, and the slider 6 resists the elasticity of the coil spring 5. Slide.

  The marker push-up portion 6c pushes up the lower end of the marker 7 by the slide of the slider 6, and the marker 7 is exposed on the upper case 1a against the elasticity of the marker coil spring 7a.

  In this state, the locking terminal 2b locks the body circumference of the electric wire A at the tip, and electrical connection is maintained together with the contact terminal 2a, and the marker 7 is exposed to the upper case 1a. The connection status can be easily confirmed.

  Further, in order to release the electrical connection, a screwdriver or the like is inserted into the removal hole 8 drilled immediately above the locking terminal 2b of the upper case 1a, and the locking terminal 2b is pressed and removed. The slider 6 is returned to the left-side state shown in FIG.

  The wire joint confirmation structure of the harness joint box of the present invention enables the electrical connection with one touch by simply inserting the rod-shaped electric wire A, and the electrical connection state can be easily confirmed by the marker, and the removal is also possible for removal This can be done with a single touch just by inserting a screwdriver or the like into the hole 8 and facilitates wiring work such as floor wiring.

FIG. 1 is a plan view for explaining an embodiment of a four-branch harness having a wire insertion confirmation structure for a harness joint box according to the present invention. FIG. 2 is a plan view showing a state in which an upper case is removed for explaining an embodiment of a two-branch harness of the wire joint confirmation structure for a harness joint box of the present invention. FIG. 3 is a cross-sectional view of a main part for explaining an embodiment of the wire joint confirmation structure of the harness joint box of the present invention.

Explanation of symbols

A Wire 1 Harness joint box 1a Upper case 1aa Marker storage part 1b Lower case 1ba Coil spring storage part 1bb Slider storage part 1bc Terminal storage part 2 Terminal fitting 2a Contact terminal 2b Locking terminal 3 Wire insertion hole 4 Plug blade insertion hole 5 Coil spring 6 Slider 6a Spring contact portion 6b Wire contact portion 6c Marker push-up portion 7 Marker 7a Marker coil spring 8 Removal hole

Claims (1)

In a harness joint box having three sets of terminal fittings in the upper case and the lower case and a wire insertion hole provided on each of the power supply side and the feeding side and a plug blade insertion hole for inserting at least two sets of harness plug blades, A coil spring housing part that houses a coil spring that provides elasticity in the outward direction and is provided on the inside of the extension line of the wire insertion hole of the lower case; and a coil spring that is provided outside the coil spring housing part. A slider housing portion that slidably houses a slider having a spring contact portion, a wire contact portion, and a marker push-up portion that are in contact with each other, and is provided outside the slider storage portion so as to protrude from the wire insertion hole. Further, it is possible to move in the vertical direction on the terminal storage part for storing the contact terminal and the locking terminal extending from the terminal fitting, and on the extension line of the wire insertion hole of the upper case A marker storage portion for storing the provided marker and a marker coil spring that is always provided with elasticity in the downward direction; and a removal hole for releasing the connection immediately above the locking terminal. Wire harness confirmation structure of harness joint box characterized by

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