JP2018081882A - Terminal connection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a terminal connection device in which the possibility of occurrence of strength deterioration in a locking structure between a main body case and a cover case is suppressed.SOLUTION: In a terminal connection device 1 in which a conductive terminal 60 provided at the tip of an electric wire is inserted from the outside and that includes an internal conductive terminal connecting structure 20 and an external nonconductive box-shaped case 5, the case 5 includes a main body case 10 having an insertion opening 100 that communicates with the inside of the case 5 and in which a terminal connecting structure 20 is provided on two opposing surfaces of the case 5 and an opening 120 that communicates with the inside of the case 5 and is provided on the bottom surface adjacent to the two opposing surfaces, and a cover case 40 mounted in the opening 120, and the main body case 10 is provided with a fixing flange 11 extending outward from the lower end of at least one side face of the main body case 10, and a bolt hole 12 for bolt tightening is opened in the flange 11.SELECTED DRAWING: Figure 1

Description

The present invention relates to a terminal connection device, and more particularly to a terminal connection device in which a terminal can be easily attached and detached.

  For example, as disclosed in Patent Document 1, a conventional terminal block for connecting an electric wire is a round crimp terminal attached to the tip of the electric wire at a predetermined position of the terminal block, or a point where the tip is opened. An open-type crimp terminal is set and positioned and fixed with an attached screw at that position. The terminal block includes a connection portion made of a metal plate-like body, and the connection portion is firmly and electrically mechanically connected to the crimp terminal by a screw tightening force. As a result, a terminal block capable of dealing with a large current is obtained.

  Further, as disclosed in Patent Document 2, a terminal block provided with a lock lever for fixing a crimp terminal to a connection portion at a predetermined position is known. The connection portion is provided with a terminal plate for electrical and mechanical connection with the crimp terminal, a lock having a coiled pressure contact spring on the non-connection surface side of the terminal plate and a rotation shaft capable of rotating on the connection surface side. With a lever. The tip-opening type crimp terminal having the tip opened is placed in a predetermined position in such a manner that the rotating shaft is sandwiched between the tip-opening portions. The lock lever includes a mechanism for fixing the crimp terminal at this position, and is switched from the release position to the tightening position by a rotation operation. Thereby, the crimp terminal is electrically and mechanically fixed to the terminal block. Release is performed by the reverse switching operation.

  Further, as disclosed in Patent Document 3, it is possible to connect the crimping terminal electrically and mechanically with a simple operation without limiting the shape of the crimping terminal that can be handled, without screw tightening work. Terminal connection devices that can be used are known.

JP 2013-165001 A JP 2005-149820 A Japanese Patent Laying-Open No. 2015-079705

However, according to the technique described in Patent Document 1, in order to fix the crimp terminal to the terminal block, an attached screw is required and a screw tightening operation is involved. Also, when removing the crimp terminal from the terminal block, it is troublesome to attach and detach the crimp terminal with a screw loosening operation.
According to the technique described in Patent Document 2, the attachment and detachment of the crimp terminal can be performed by operating the lock lever, so that it is free from complicated work. However, the crimp terminals that can be used are limited, and can only be used for tip-open crimp terminals with a notch at the tip. That is, this is a limited connection technique that cannot be applied to a round crimp terminal having a general shape.

According to the technique described in Patent Document 3, a terminal connection device that does not limit the shape of a crimp terminal that can be used, and the screw tightening operation is eliminated from the connection operation of the crimp terminal. Although the main body case and the cover case have separate structures, both of which are synthetic resin injection-molded products, for example, a connection structure having a concave portion and a convex portion structure. It is predicted that the stopping portion will become loose at the interference portion due to repeated terminal insertion and removal operations, and the locking force will decrease. Further, when the plate thickness of the terminal member is increased due to an increase in the size of the large current specification, the strength load on the locking portion increases. This also promotes settling.

  The present invention has been made in view of the above-described problems. It is an object of the present invention to provide a terminal connection device and a terminal connection method in which the possibility of strength deterioration occurring in the locking structure between the main body case and the cover case is suppressed.

  The terminal connection device of the present invention includes (1) a conductive terminal connection structure in which a conductive terminal provided at the tip of an electric wire is inserted from the outside, and a non-conductive box-shaped case on the outside. A terminal connection device, wherein the case has a main body case having an insertion port that leads to the inside having the terminal connection structure provided on two opposing surfaces, and an opening that leads to the inside on a bottom surface adjacent to the two opposing surfaces. And a cover case attached to the opening.

  According to this invention, since the cover case is attached to the opening of the bottom surface of the main body case, the terminal connection device in which the strength deterioration of the locking structure between the main body case and the cover case is suppressed by inserting and removing the terminal, and the terminal connection A method is obtained. For example, since the main body case is fixed in a posture in which the bottom surface is made to correspond to the circuit board, the housing, and the like, the cover case is prevented from sliding in the vertical direction with respect to the main body case by inserting and removing the terminals. As a result, wear of the locking portion is suppressed.

Preferably, in the terminal connection device of the present invention, (2) the main body case is a retaining pin for fixing the terminal at the insertion completion position on the upper surface of the terminal connection structure facing the terminal connection surface and the terminal connection structure. The terminal is fixed to the terminal connection structure when the retaining pin is lowered to the push-off position, and when the terminal is raised from the push-off position to the standby position, the terminal is inserted or removed from the terminal connection structure. It is a thing of description of (1) which has the characteristic in the place where it becomes possible.

  According to the present invention, connection or removal of the terminal and the terminal connection structure is performed by pushing down or pushing up the retaining pin. Thereby, the terminal connection apparatus which does not require the terminal fixing process by screw fastening is obtained.

  Preferably, the terminal connection device according to the present invention is (3) described in (2) characterized in that the retaining pin includes a main body and a through pin, and the through pin is made of a columnar metal material.

  According to the present invention, since the through pin of the retaining pin is made of a metal material, a terminal connecting device is obtained in which wear of the sliding contact portion is suppressed even when the retaining pin is repeatedly inserted and removed.

  Preferably, in the terminal connection device of the present invention, (4) the main body case includes a fixing flange extending outwardly from a lower end of at least one side surface, and a bolt hole for tightening the bolt is formed in the flange. (2) or (3) is characterized by the above.

  According to this invention, the main body case has a structure in which the flange portion is bolted to the corresponding fixed object. Thereby, the terminal connection device and the terminal connection method in which the strength deterioration of the locking structure between the main body case and the cover case is suppressed by inserting and removing the terminals are obtained.

FIG. 1 is an external perspective view of a terminal connection device according to an embodiment of the present invention. 2 is a cross-sectional view taken along line X2-X2 of FIG. 3 is a cross-sectional view taken along line Y3-Y3 of FIG. FIG. 4 is a perspective view showing the inside of the main body case of the terminal connection device according to the embodiment of the present invention. 5 is a cross-sectional perspective view taken along line X5-X5 of FIG. FIG. 6 is an external perspective view of the pedestal portion of the terminal connection device according to the embodiment of the present invention. 7 is a cross-sectional perspective view taken along line X7-X7 in FIG. FIG. 8 is a process diagram illustrating an assembly process of the cover case of the terminal connection device according to the embodiment of the present invention, wherein (A) is a process of assembling the second leaf spring member to the cover case, and (B) is It is a process which shows an assembly completion state. FIG. 9 is an external perspective view showing the terminal connection structure of the terminal connection device according to the embodiment of the present invention. FIG. 10 is an external perspective view showing the first leaf spring member. FIG. 11 is an external perspective view showing the second leaf spring member. FIG. 12 is an external perspective view showing the support member. FIG. 13 is a perspective view illustrating a state where a terminal is inserted into the terminal connection device illustrated in FIG. 9. FIG. 14 is an external perspective view of a retaining pin of the terminal connection device according to the embodiment of the present invention. FIG. 15 is an external perspective view from below of the retaining pin. 16 is a cross-sectional perspective view taken along line Y16-Y16 in FIG. FIG. 17 is a process diagram of attaching the retaining pin, the second leaf spring member, and the supporting member to the main body case, where (A) is before mounting, (B) is the mounting process of the retaining pin, and (C) is The mounting process of the second leaf spring member, (D) is the mounting process of the support member. 18 is a cross-sectional perspective view taken along line Y18-Y18 in FIG. 19 is a cross-sectional perspective view taken along line X19-X19 in FIG. 20A and 20B are process diagrams illustrating an assembly process of the cover case and the main body case of the terminal connection device according to the embodiment of the present invention, where FIG. 20A is a perspective view before assembly and FIG. FIG. FIG. 21 is a connection procedure diagram illustrating a process of inserting a crimp terminal and pushing a retaining pin into the terminal connection device according to the embodiment of the present invention. FIG. 21A is a perspective view illustrating the insertion start of the crimp terminal. FIG. 4B is a perspective view showing a state where the crimp terminal is completely inserted, and FIG. 4C is a perspective view showing a state where a front retaining pin is pushed down to a retaining position. 22 is a cross-sectional perspective view taken along the line X22-X22 in FIG. 21, wherein (A) is a perspective view showing the start of insertion of the crimp terminal, and (B) is a perspective view showing a completed insertion state of the crimp terminal. (C) is a perspective view showing a state where a front retaining pin is pushed down to a retaining position. FIG. 23 is an external perspective view showing a state in which four crimp terminals are inserted into the terminal connection device according to the embodiment of the present invention attached to the housing.

  A terminal connection device 1 according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an external perspective view of a terminal connection device according to an embodiment of the present invention. 2 is a cross-sectional view taken along line X2-X2 of FIG. 3 is a cross-sectional view taken along line Y3-Y3 of FIG. FIG. 4 is a perspective view showing the inside of the main body case of the terminal connection device according to the embodiment of the present invention. 5 is a cross-sectional perspective view taken along line X5-X5 of FIG. The direction indicated in the description follows the direction defined in the drawings.

  As shown in FIGS. 1 and 2, the terminal connection device 1 includes a synthetic resin case 5, a metal terminal connection structure 20 accommodated therein, and an iron pin (through pin 530) assembled to the case 5. ) Provided with a retaining pin 50. The case 5 is a split type of the main body case 10 and the cover case 40.

  Since the case 5 is divided into the main body case 10 and the cover case 40, the terminal connection structure 20 can be easily mounted, and the cover case 40 holds the terminal connection structure 20 in the regular mounting position. Make it possible.

<Outline of terminal connection device>
As shown in FIGS. 2 and 3, the main body case 10 is a substantially box-shaped injection-molded product made of an insulating synthetic resin having a space inside. The main body case 10 includes an insertion port 100 for inserting a terminal attached to the front end of the electric wire on the front and rear surfaces. The insertion port 100 is connected to an electric wire housing part 130 for housing an electric wire, which is formed inside the main body case 10.

  As shown in FIGS. 4 and 5, the main body case 10 includes an opening 120 for mounting the terminal connection structure 20 on the bottom surface, and the opening 120 is a cover housing portion 121 for housing the cover case 40. It is connected to. The cover accommodating part 121 continues to the terminal accommodating part 110 provided in the inner part. Furthermore, the terminal accommodating part 110 continues to the pin control part 14 at the back. Moreover, the terminal accommodating part 110 is continued to the electric wire accommodating part 130 with which the front and back are equipped.

  As shown in FIGS. 2 and 3, the cover case 40 is fitted into the cover accommodating portion 121 of the main body case 10 and constitutes the case 5 integrally with the main body case 10. The cover case 40 is an injection molded product made of an insulating synthetic resin.

  The pin control unit 14 includes a housing 410 for moving the retaining pin 50 along a direction orthogonal to the insertion direction of the terminal 60.

  As shown in FIGS. 2 and 3, the terminal connection structure 20 includes a first terminal connection structure 200 and a second terminal connection structure 201. The 1st terminal connection structure 200 and the 2nd terminal connection structure 201 are the structures which share a part member, and are provided with the same structure. The terminal connection structure 20 includes terminal connection means 203 which is a minimum structural unit for connecting the terminal 60. The terminal connection means 203 includes a support part 300a and a leaf spring part 220a.

  As shown in FIG. 2, the retaining pin 50 is for holding the terminal 60 inserted into the terminal connection structure 20 in the normal insertion position. The retaining pin 50 includes a main body 500 in consideration of operability, and a through pin 530 for preventing the terminal 60 from coming off on the lower surface thereof. The through pin may be made of metal, for example, an iron-based metal such as stainless steel.

<Body case>
As shown in FIGS. 4 and 5, the main body case 10 is a box made of an insulating synthetic resin, and includes a terminal housing portion 110 for housing the terminal connection structure 20 at the center thereof. The main body case 10 includes a wire housing portion 130 in front of and behind the terminal housing portion 110. The electric wire housing part 130 functions as an insertion passage for guiding the terminal 60 in the process of inserting the terminal 60 into the terminal connection means 203, and functions as a housing part for the electric wire 610 connected to the rear of the terminal 60 when connected to the terminal 60. To do. The electric wire housing part 130 further extends forward or rearward and continues to the insertion port 100 on the front surface of the main body case 10 or the insertion port 100 on the rear surface.

The terminal connection structure 20 has a two-stage structure of an upper stage and a lower stage. For convenience, the lower stage is referred to as a first terminal connection structure 200, and the upper stage is referred to as a second terminal connection structure 201. Following this, as shown in FIG. 6, the terminal accommodating portion 110 includes a first terminal accommodating portion 111 where the first terminal connecting structure 200 is accommodated and a second terminal accommodating portion where the second terminal connecting structure 201 is accommodated. 112, and the electric wire housing part 130 connected thereto is also represented as the first electric wire housing part 131 in the lower stage and the second electric wire housing part 132 in the upper stage. Further, in the insertion port 100 connected thereto, the lower row is referred to as a first insertion port 101 and the upper row is referred to as a second insertion port 102.

  As shown in FIG. 5, the insertion port 100 includes a first insertion port 101 and a second insertion port 102 on the front surface of the main body case 10, and a first insertion port 101 and a second insertion port 102 on the rear surface. Prepare. Since one terminal 60 can be inserted into and removed from one insertion port 101 or 102, the terminal connection device 1 can connect four terminals 60 simultaneously. A partition wall 133 is provided between the first wire housing portion 131 and the second wire housing portion 132, and the housing portions 131 and 132 are partitioned by the partition wall 133. Thereby, when the terminal 60 crimped | bonded to the terminal of the electric wire is inserted in the terminal connection structure 20, the crimping | compression-bonding part of the terminal 60 in the 1st electric wire accommodating part 131 and the crimping of the terminal 60 in the 2nd electric wire accommodating part 132 are carried out. The electrical contact is structurally avoided by the partition wall 133.

  A back wall 134 is provided between the second wire housing portion 132 and the terminal housing portion 110 at the back thereof, as shown in FIG. The back wall 134 partitions the second wire housing part 130 and the terminal housing part 110. However, a slit 135 is provided in a part of the back wall 134, and the passage of the terminal 60 is secured by the slit 135. In this way, only the minimum necessary gap is left, and the remaining portion is partitioned by providing the partition wall 133 and the back wall 134, thereby making unnecessary contact between the terminals and particularly electrical contact with the outside. The danger of being avoided. In addition, between the 1st electric wire accommodating part 131 and the terminal accommodating part 110, division is made | formed by mounting | wearing with the cover case 40. FIG.

As shown in FIG. 6, the slit 135 is provided in the vicinity of the back wall 134 on the line of intersection with the partition wall 133. The width and thickness of the slit 135 are such that the terminal 60 can be smoothly inserted and removed.
As shown in FIG. 6, the terminal accommodating portion 110 is a space having a rectangular cross section that is continuous with the inner portion of the cover accommodating portion 121. The terminal accommodating portion 110 and the cover accommodating portion 121 are an integral space provided continuously. The terminal connection structure 20 is attached to the terminal accommodating part 110 through the cover accommodating part 121 from the opening part 120 of the main body case 10.

  As shown in FIG. 5, the terminal accommodating portion 110 includes a press-fit slit 140 and a guide portion 170 on the upper side. Two press-fit slits 140 are provided apart from each other on the side surface. This is a slit for receiving the press-fit portion 270 of the terminal connection structure 20. When the press-fitting portion 270 is press-fitted into the press-fitting slit 140, the terminal connection structure 20 is mounted at the regular mounting position. The width and thickness of the press-fit slit 140 are large enough to press-fit the press-fit portion 270.

  As shown in FIG. 5, the guide portion 170 guides the terminal connection structure 20 to the proper mounting position when the terminal connection structure 20 is mounted on the terminal accommodating portion 110 of the main body case 10, and also inserts the cover case 40 into the normal insertion position. Provided to guide you to. The guide part 170 is a columnar body having a rectangular cross section, and is provided in the central part of the terminal accommodating part 110. The guide portion 170 only needs to have a size that allows the positioning hole 280 of the terminal connection structure 20 and the positioning hole 470 of the cover case 40 to pass therethrough, and if the guide portion 170 is slightly smaller than the size of these holes. Good. The length of the guide part 170 should just be the length which penetrates the attached terminal connection structure 20 and reaches the middle of the assembled cover case 40.

<Pin Control Unit> The pin control unit 14 will be described with reference to the drawings. FIG. 6 is an external perspective view of the cover case of the terminal connection device according to the embodiment of the present invention. 7 is a cross-sectional perspective view taken along line X7-X7 in FIG.

  As shown in FIG. 7, the pin control unit 14 includes an accommodation unit 410 that penetrates from above to below. The accommodating portion 410 is a space for accommodating the retaining pin 50 and is provided with two accommodating portions 410 and 410 arranged side by side in the front-rear direction with the guide portion 170 interposed therebetween.

  As shown in FIGS. 6 and 7, the accommodating portion 410 is a columnar space having a rectangular cross section. The surrounding four sides are walls. The left and right walls have a convex first locking portion 420 for preventing the retaining pin 50 from falling off at the lower end, and a convex second locking for holding the retaining pin 50 at the standby position 501. A portion 421 is provided at the upper end. The first locking part 420 has one relatively large one on one side, and the second locking part 421 has two relatively small ones on one side.

  As shown in FIG. 7, the housing part 410 includes a drop prevention part 430. The slip-off prevention part 430 has a hook-like protrusion near the upper end of the guide part. The removal prevention part 430 is provided to prevent the removal prevention pin 50 from coming off upward by being engaged with the engagement part 575 and is provided at the upper end of the guide part.

  An insertion port 411 for assembling the retaining pin 50 is provided at the lower end of the housing portion. Two insertion ports 411 and 411 are provided side by side in the front-rear direction. An insertion guide 440 is provided before and after the upper opening 412. The insertion guide 440 is such that the pedestal portion upper surface 13a before and after the opening 412 is inclined, and assists the pulling-out operation of the retaining pin 50 inserted by using this inclination.

<Cover Case> The cover case 40 is fitted into the cover housing part 121 of the main body case 10 and constitutes the case 5 integrally with the main body case 10. Since the case 5 is divided into the main body case 10 and the cover case 40, the assembling property of the terminal connection device 1 is dramatically improved. The cover case 40 holds the terminal connection structure 20 attached to the terminal accommodating portion 110 of the main body case 10 at a predetermined position at a regular fitting position.

  As shown in FIGS. 2 and 3, the cover case 40 is fitted into the cover accommodating portion 121 through the opening 120 on the bottom surface of the main body case 10. The cover case 40 includes a box-shaped main body 400.

  As shown in FIG. 8, the main body 400 includes pressing portions 460 on the front and rear sides of the left and right side surfaces 403. The presser portion 460 is a relatively wide plate-like body that extends downward from the front and rear ends of the left and right edge portions of the upper surface, and extends linearly downward. The lower end of the pressing portion 460 extends further downward than the lower surface of the main body 400 in a state where the plate width and the plate thickness are kept constant. The presser portion 460 includes an upward convex locking portion 461.

  When the cover portion 40 is fitted into the main body case 10, the presser portion 460 guides the cover case 40 to a predetermined position in cooperation with the support portion 150 of the main body case 10. The locking portion 461 holds the cover case 40 at the normal fitting position of the main body case 10 in cooperation with the holding portion 122 of the main body case 10.

  As shown in FIG. 8, the cover case 40 includes a positioning hole 470 that is drilled downward from the center of the upper surface 401 of the main body 400. The positioning hole 470 functions as a guide when the cover case 40 is fitted into the main body case 10 in cooperation with the guide portion 170 of the main body case 10.

The positioning hole 470 is a columnar space having a rectangular cross section. The positioning hole 470 is provided between the two through-portion receiving portions 160 arranged in the front-rear direction. The cover case 40 includes slits 450 at the four corners of the upper surface 402 of the main body 400. The slit 450 has a first leaf spring member 2201.
The press-fitting part 270 is press-fitted and held.

  As shown in FIG. 8, the penetrating part receiving part 160 is a concave part having a circular shape in front view provided on the upper surface of the cover case 40. The penetrating portion receiving portion 160 receives the retaining pin 50 inserted to a predetermined position and fits the tip of the pin into the concave portion to suppress the slight occurrence of the deflection in the plane direction. Two penetration part receiving parts 160 are provided on the upper surface of the cover case 40, and are arranged along the front-rear direction. The diameter and depth of the penetrating part receiving part 160 are slightly larger than the diameter of the tip of the penetrating pin 530, and may be deep enough to hide part of the tip.

  As shown in FIG. 8, a first leaf spring member 2201 is assembled to the cover case 40. The first leaf spring member 2201 is assembled in such a posture that the leaf spring portion 220 faces upward with the surface where the press-fit portion 270 extends downward. The first leaf spring member 2201 is assembled so that the through pin 530 of the retaining pin 50 assembled to the pin control unit 14 passes through the notch portion 260.

  The press-fit portion 270 of the first leaf spring member 2201 is press-fitted into a slit 450 provided on the upper surface of the cover case 40 and is fixed at a regular assembly position. As shown in FIG. 8, the first leaf spring member 2201 fixed to the cover case 40 at the regular assembly position is provided so as to overlap the upper surface of the cover case 40, and the center of the central positioning hole 280 is the cover case. 40 substantially coincides with the center of the positioning hole 470 on the upper surface.

<Terminal connection structure>
The terminal connection structure 20 will be described with reference to the drawings. FIG. 9 is an external perspective view showing the terminal connection structure of the terminal connection device according to the embodiment of the present invention. FIG. 10 is an external perspective view showing the first leaf spring member. FIG. 11 is an external perspective view showing the second leaf spring member. FIG. 12 is an external perspective view showing the support material. FIG. 13 is a perspective view showing a state in which a terminal is inserted in FIG.

  As illustrated in FIG. 9, the terminal connection structure 20 includes a first terminal connection structure 200 and a second terminal connection structure 201. Each of the first terminal connection structure 200 and the second terminal connection structure 201 includes a support member 300 and a leaf spring member 220. The first terminal connection structure 200 includes a support member 300 that is a shared member and a first leaf spring member 2201, and the second terminal connection structure 201 includes a support member 300 and a second leaf spring member 2202. Since the first terminal connection structure 200 and the second terminal connection structure 201 share the support member 300 and have the same basic structure, the following description will be mainly performed on the first terminal connection structure 200.

  As shown in FIGS. 9, 10, and 11, the first terminal connection structure 200 includes a flat plate-like support member 300 and a leaf spring member 220 including an elastically deformable portion. The support member 300 includes two support portions 300a and 300a on the front and rear sides. The leaf spring member 220 includes a base portion 205 that spreads in a plate shape, and leaf spring portions 220a and 220a that extend from the front and rear ends so as to be bent and overlapped with each other. The support portions 300a and 300a and the leaf spring portions 220a and 220a are in corresponding positions, and the terminal 60 is made thicker by a gap generated between them.

  The support part 300a includes a flat main body 301 for electrical and mechanical connection with the terminal 60. The terminal 60 acquires a large connection area by overlapping and connecting the flat surface with the flat main body 301 of the support part 300a. Further, a large urging force is continuously applied from the leaf spring portion 220a to the terminal 60 to be sandwiched. Thereby, the highly reliable terminal connection structure 20 which can respond also to a big electric current connection is obtained.

As shown in FIG. 9, the first terminal connection structure 200 includes two sets of terminal connection means 203 and 203. The terminal connecting means 203 is a minimum structural unit that takes charge of the connection, and includes a support portion 300a and a leaf spring portion 220a.

  As shown in FIGS. 10 and 11, the leaf spring member 220 includes a base portion 205 that spreads in a plate shape, and leaf spring portions 220 a and 220 a that extend from the front and rear ends so as to bend and overlap. The base portion 205 includes a positioning hole 280 in the central portion for allowing the guide portion 170 extending in a columnar shape to pass when the terminal connection structure 20 is attached to the main body case 10. The base 205 has press-fit portions 270 for press-fitting and fixing into the press-fit slits 140 of the terminal housing 110 when the terminal connection structure 20 is attached to the terminal housing 110 of the main body case 10. I have. The press-fit portion 270 is a cut piece extending from the side edge of the base portion 205 and has a bent portion and extends downward.

  As shown in FIGS. 10 and 11, the base portion 205 includes guide portions 290 for guiding the terminals 60 being inserted at the front and rear ends of the left and right side edges. The guide portion 290 is a cut piece extending from the side edge of the base portion 205 and has two bent portions 293 and 294, and the tip extends upward. The guide portion 290 includes a support surface 291 for supporting the inserted terminal 60 at the front portion of the bent portion 294 and a guide surface 292 for guiding the terminal 60 to the front end portion. The guide part 290 corrects the lateral displacement of the terminal 60 during insertion and guides the terminal 60 to the normal insertion position. The guide part 290 includes the two bent parts 293 and 294, thereby widening the elastically deformable range. Thereby, the guide part 290 can correct | amend the attitude | position of several terminals 60 from which size differs.

  As shown in FIG. 10, the leaf spring member 220 includes a cantilever-like leaf spring portion 220 a having a notch portion 260. The notch 260 is formed in the leaf spring 220a, reaches from the vicinity of the free end to the end of the fixed end, and further wraps around to the base 205. The rear end reaches the positioning hole 280 before the center of the base 205. The notch portion 260 is a cut-out portion of the interference portion of the leaf spring portion 220a in order to ensure the operability of the retaining pin 50 when the terminal 60 is inserted into the terminal connection structure 20.

  When viewed from the back side, the leaf spring member 220 has a front end of the right and left side edges of the base portion 205 having a notch portion 260 in the front and rear, and a press-fit portion 270 and a guide portion 290 at the rear end, as shown in FIG. Bending portions 293 and 294 can be confirmed. FIG. 11 shows the back surface side of the first leaf spring member 2201 and also shows the surface side of the normal assembly posture of the second leaf spring member 2202 to the main body case 10.

  As shown in FIG. 12, the support member 300 is a connection conductor of the terminal connection structure 20 and may be a punched product of a copper alloy sheet having a relatively large thickness in consideration of conductivity. As a result, a relatively large current of about several tens of amperes to one hundred amperes can flow. The support portion 300a includes a flat main body 301 for electrically and mechanically connecting the terminal 60 in the plate thickness direction in cooperation with the leaf spring portion 220a.

  As shown in FIG. 12, the support member 300 includes a positioning hole 330 in the center of the rectangular main body 300 for correcting a front / rear / left / right shift when the terminal connection structure 20 is attached to the main body case 10. Yes. The support member 300 includes circular through holes 310 and 310 in front of and behind the positioning hole 330. The through hole 310 is a hole for penetrating the through pin 530 of the retaining pin 50. The support member 300 includes projecting fixing portions 320 at the front end and the rear end of the left and right side edges. The fixing part 320 is provided for fixing the support member 300 to the main body case 10. The fixing portion 320 is fitted into the support portion 150 of the main body case 10 and is guided to the support base 151 by a taper provided in the support portion 150 as it goes to the back. The fixing unit 320 is held by the support base 151.

  As shown in FIG. 9, the terminal connection structure 20 shares a support member 300 in the center, includes the support member 300, and includes the first terminal connection structure 200 and the support member 300 on the lower side, and on the upper side. A second terminal connection structure 201 is provided. The first terminal connection structure 200 includes a support member 300 and a first leaf spring member 2201, and the second terminal connection structure 201 includes a support member 300 and a second leaf spring member 2202. Each of the first terminal connection structure 200 and the second terminal connection structure 201 includes two sets of terminal connection means 203 and 203. The terminal connection means 203 includes a support part 300a and a leaf spring part 220a, which are the minimum structural units for connection. The terminal connection means 203 sandwiches the terminal 60 from the plate thickness direction through a gap generated between the leaf spring portion 220a and the support portion 300a, and electrically and mechanically connects them. The terminal 60 can hold the terminal 60 with a strong force because the leaf spring portion 220a applies a biasing force to the terminal 60 and the support portion 300a supports the terminal 60.

  As shown in FIG. 9, the positioning hole 280 of the first leaf spring member 2201, the positioning hole 280 of the second leaf spring member 2202, and the positioning hole 330 of the support member 300 are centered in the normal assembly state. Is almost the same. Further, the notch 260 of the first leaf spring member 2201 and the notch 260 of the second leaf spring member 2202 overlap each other in the through hole 310 of the support member 300. As a result, the obstruction that prevents the movement of the retaining pin 50 is removed in the vertical direction.

  The first terminal connection structure 200 and the second terminal connection structure 201 may not include means for holding each other in order to hold a predetermined assembly structure. A means for assembling to the position may be provided.

  As shown in FIG. 13, the first terminal connection structure 200 in a predetermined position includes terminal connection means 203, 203 at the front and rear. The terminal 60 at the normal insertion position is electrically and mechanically connected in the plate thickness direction through a gap between the leaf spring portion 220a constituting the terminal connection means 203 and the support portion 300a. The terminal 60 inserted into the front terminal connecting means 203 has a posture in which the electric wire 610 extends forward, and the rear is in the insertion direction. In addition, the terminal 60 inserted into the rear terminal connection means 203 has an orientation in which the electric wire 610 extends rearward and the front direction is the insertion direction.

  Also in the second terminal connection structure 201, as shown in FIG. 13, the insertion direction of the terminal 60 is the same as in the case of the first terminal connection structure 200. However, the upper and lower surfaces of the terminal 60 are in reversed positions. That is, both the first terminal connection structure 200 and the second terminal connection structure 201 are inserted in a posture in which the flat surface side (reverse pressure bonding part side) of the terminal 60 is in contact with the support part 300a.

<Retaining pin>
The retaining pin 50 will be described with reference to the drawings. FIG. 14 is an external perspective view of a retaining pin of the terminal connection device according to the embodiment of the present invention. FIG. 15 is an external perspective view of the retaining pin from the bottom side. 16 is a cross-sectional perspective view taken along line Y16-Y16 in FIG.

  As shown in FIGS. 14, 15, and 16, the retaining pin 50 includes a main body 500 having a rectangular cross section and a through pin 530 having a circular cross section extending downward from the lower surface. The retaining pin 50 is provided to fix the terminal 60 at that position so that the terminal 60 inserted at the regular insertion position of the terminal connection structure 20 does not fall off.

<Mounting of retaining pin> The mounting of the retaining pin 50 will be described with reference to the drawings. FIG. 17 is a process diagram of attaching the retaining pin, the second leaf spring member, and the supporting member to the main body case, where (A) is before mounting, (B) is the mounting process of the retaining pin, and (C) is The mounting process of the second leaf spring member, (D) is the mounting process of the support member. 18 is a cross-sectional perspective view taken along line Y18-Y18 in FIG. 19 is a cross-sectional perspective view taken along line X19-X19 in FIG. 20A and 20B are process diagrams illustrating an assembly process of the cover case and the main body case of the terminal connection device according to the embodiment of the present invention, where FIG. 20A is a perspective view before assembly and FIG. FIG.

  As shown in FIG. 14, the main body 500 includes a pushing portion 510 on which the fingertip is applied. The main body 500 includes grooves 550 extending in the vertical direction on the left and right side walls. When the main body 500 of the retaining pin 50 is assembled to the housing part 410 of the pin control unit 14, the groove 550 projects inwardly, and the first locking part 420 on the side surface of the housing part 410, and the second engaging member. This is a relief for avoiding a collision between the stop portion 421 and the side surface of the main body 500. The groove 550 penetrates the upper surface at the upper end, and stops at the lower end with a locking portion 570 extending in the front-rear direction before the lower surface. The locking portion 570 engages with the second locking portion 421 provided on the inner wall of the accommodating portion 410 of the pin control portion 14 with a protruding portion. Thereby, the drop-off of the retaining pin 50 from the pin control unit 14 is suppressed. The left and right side walls are provided with notches 560 on the inside in the lower half. Thereby, the latching | locking part 570 can be elastically deformed to the inside / outside direction.

  As shown in FIG. 14, the main body 500 includes a concave insertion port 540 at the upper end of the front surface and the rear surface (not shown). The insertion port 540 is provided for hooking a screwdriver or the like when the inserted retaining pin 50 is pulled out. The insertion port 540 is a rectangular depression having a width and a depth according to the purpose.

  As shown in FIGS. 14 and 16, the main body 500 includes a convex locking portion 575 at the front surface and the lower end portion of the rear surface (not shown). The locking portion 575 engages with the removal preventing portion 430 of the pin control portion 14 so that the retaining pin 50 assembled to the pin control portion 14 does not fall outside. At the time of assembly, the retaining pin 50 is assembled from the inside of the pin control unit 14, and the movable limit position to the outside is determined by the locking unit 575. The main body 500 is positioned in a state of protruding from the upper surface of the pin control unit 14.

  As shown in FIG. 19, the retaining pin 50 is prevented from falling out by engaging a locking portion 575 provided on the front and rear surfaces with a retaining portion 430 provided on the front and rear inner surfaces of the upper end of the accommodating portion 410 of the pin control unit 14. It is prevented. Further, as shown in FIG. 18, the retaining pin 50 has a locking portion 570 provided on the left and right side surfaces on the second locking portion 421 provided on the left and right inner surfaces of the upper end of the housing portion 410 of the pin control unit 14. The standby posture can be maintained at the standby position 501 where the main body 500 of the retaining pin 50 protrudes outside.

  When the retaining pin 50 is in the standby position 501, as shown in FIG. 18, the tip of the penetrating pin 530 is near the notch 260 of the second leaf spring member 2202 or slightly above. As shown in FIG. 18, the retaining pin 50 is assembled to the accommodating portion 410 from below the pin control portion 14, and the locking portion 570 provided on the left and right side surfaces of the main body 500 is the lower end of the accommodating portion 410 of the pin control portion 14. By being over the first locking portion 420 provided on the left and right side surfaces, the pin control portion 14 is held integrally.

  As shown in FIG. 19, there is a movable range of the retaining pin 50 along the vertical direction perpendicular to the insertion direction of the terminal 60. The retaining pin 50 exposes the main body 500 from the case 5 when it is in the standby position 501 at the upper end. The penetration pin 530 of the retaining pin 50 can move in the vertical direction in the terminal accommodating portion 110. In the retaining pin 50, a position where the upper surface of the main body 500 is flush with the upper surface of the case 5 is a regular retaining position 502. The terminal 60 inserted at this position is held.

<Mounting of Terminal Connection Structure> The mounting of the terminal connection structure 20 to the main body case 10 will be described with reference to the drawings. FIG. 17 is a process diagram of attaching the retaining pin, the second leaf spring member, and the supporting member to the main body case, where (A) is before mounting, (B) is the mounting process of the retaining pin, and (C) is The mounting process of the second leaf spring member, (D) is the mounting process of the support member.

  As shown in FIG. 17, the terminal connection structure 20 is attached from the opening 120 of the main body case 10 to the terminal accommodating portion 110 at the back thereof. The mounting may be performed in units of components of the terminal connection structure 20, and may be performed in the order of the second leaf spring member 2202, the support member 300, and the first leaf spring member 2201.

  As shown in FIG. 17B, the second leaf spring member 2202 is attached to the second terminal accommodating portion 112 of the main body case 10 with the leaf spring portion 220a facing downward. The horizontal direction is positioned by passing the guide portion 170 extending in a columnar shape from above the pin control portion 14 through the positioning hole 280 in the center of the second leaf spring member 2202. When pushed down in this posture, the press-fit portions 270 provided at the front and rear ends of the left and right side edges are press-fitted into the press-fit slits 140 provided above the terminal accommodating portion 110. At this time, the second leaf spring member 2202 is mounted at the normal mounting position by inserting it with some pressure.

  The second leaf spring member 2202 mounted at the regular mounting position can connect the terminal 60 inserted from the second insertion port 102 of the main body case 10 at the regular insertion position. Further, the notch portion 260 of the second leaf spring member 2202 is located at a position overlapping the penetrating portion receiving portion 160 on the bottom surface of the main body case 10.

  As shown in FIG. 17B, the support member 300 is mounted so as to overlap the second leaf spring member 2202 in a posture in which the fixing portion 320 provided on the side edge is positioned in the left-right direction. The guide portion 170 extending in a columnar shape is passed through the central positioning hole 330 to determine the normal position in the horizontal direction.

  As shown in FIG. 17, the support member 300 advances along the support portions 150 provided on the inner surfaces of the left and right side walls of the main body case 10 and hits the support base 151 at the regular mounting position. In the support member 300 in the regular mounting position, the centers of the through holes 310, 310 provided before and after the positioning hole 330 coincide with the center of the through pin of the retaining pin 50. Further, the notch 260 of the second leaf spring member 2202 is located between the through hole 310 and the through pin, and an object that hinders the movement of the retaining pin 50 is removed from between the through hole 310 and the through pin. .

  When the fixing portion 320 of the support member 300 is engaged with the support bases 151 on the inner surfaces of the left and right side walls of the main body case 10, the support member 300 is mounted at the regular mounting position and the second leaf spring member 2202 mounted first is attached. Is held in its normal mounting position.

  Two sets of terminal connection means 203 and 203 are constructed from the second leaf spring member 2202 and the support member 300 in the regular mounting position. As shown in FIG. 13, the terminal connection means 203 is a minimum structural unit of connection including a leaf spring portion 220a and a support portion 300a. Mechanically connect. The leaf spring part 220a applies a biasing force to the terminal 60 and the support part 300a supports the terminal 60, whereby the terminal 60 can be held with a strong force.

  After the support member 300 is mounted at the regular mounting position, the first leaf spring member 2201 is mounted. However, the first leaf spring member 2201 is attached to this position integrally with the cover case 40. Therefore, the subsequent steps will be described in the assembly of the cover case 40.

<Mounting of Cover Case> As shown in FIG. 20, the cover case 40 is fitted into the cover accommodating portion 121 that is continuous from the opening 120 on the bottom surface of the main body case 10. A second leaf spring member 2202 and a support member 300 are already attached to the main body case 10. The cover case 40 is assembled so as to overlap below the support member 300. The presser portions 460 provided on the left and right side surfaces of the cover case 40 are sunk along the groove portions 122 a provided on the left and right side walls of the terminal accommodating portion 110. At the normal fitting position, the locking portion 461 of the presser portion 460 engages with the holding portion 122 of the groove portion 122a and is fixed at this position.

  By fitting the cover case 40 into the main body case 10, the terminal connection device 1 is assembled as shown in FIG. The terminal connection device 1 includes terminal insertion ports 100 on the front surface and the rear surface. The terminal insertion port 100 is provided with a first insertion port 101 and a second insertion port 102 in two upper and lower stages on the front and rear surfaces. A terminal accommodating portion 110 is provided at the back of the insertion slot 100.

<First Terminal Connection Structure> The first terminal connection structure 200 is constructed by fitting the cover case 40 into the main body case 10. As shown in FIG. 10, the first terminal connection structure 200 includes a first leaf spring member 2201 and a support member 300. The first leaf spring member 2201 includes two leaf spring portions 220a and 220a, and the support member 300 includes two support portions 300a and 300a. The leaf spring part 220a and the support part 300a constitute the terminal connection means 203 which is the minimum unit of connection. The thickness direction of the terminal 60 is clamped by the terminal connection means 203, and an electromechanical connection state is obtained.

<Terminal Connection> Connection of the terminal 60 will be described with reference to the drawings. FIG. 21 is a connection procedure diagram illustrating a process of inserting a crimp terminal and pushing a retaining pin into the terminal connection device according to the embodiment of the present invention. FIG. 21A is a perspective view illustrating the insertion start of the crimp terminal. FIG. 4B is a perspective view showing a state where the insertion of the crimp terminal is completed, and FIG. 4C is a perspective view showing a state where the front retaining pin is pushed down to the retaining position. 22 is a cross-sectional tilt view taken along line X22-X22 in FIG. FIG. 23 is an external perspective view showing a state in which four crimp terminals are inserted into the terminal connection device according to the embodiment of the present invention attached to the housing.

The retaining pin 50 is held at the standby position 501 as shown in FIGS. The terminal 60 connected to the end of the electric wire 610 is a so-called round crimp terminal having a hole in the center. Two terminals 60 can be inserted from the front and two from the rear. The following description will be mainly made on the front surface.
As shown in FIGS. 13 and 22, the terminal 60 of the first insertion port 101 (lower side) is inserted in a posture where the flat surface is up. The terminal of the second insertion port 102 (upper side) is inserted with the flat surface facing down. The position of the terminal 60 inserted from the insertion port 100 is corrected by the guide portion 290 of the terminal connection structure 20 and proceeds to the back. When the tip of the terminal 60 starts to engage with the leaf spring portion 220a, an insertion resistance is felt at the fingertip. When the terminal 60 is pushed along the support part 300a while the leaf spring part 220a is elastically deformed, the leading end abuts on the guide part 170, and the contact position becomes the normal insertion position. The terminal 60 is held at the normal insertion position.

When the terminal 60 is inserted into the first insertion port 101 and the second insertion port 102 to the normal insertion position in the same manner, both the terminals 60 and 60 are electrically and mechanically connected by the terminal connection means 203 as shown in FIG. Connected.
The retaining pin 50 is in the upper standby position 501 as shown in FIGS. The terminal 60 in the middle of insertion hits the guide portion 290 in the left-right direction. Thereby, the positional deviation of the terminal 60 in the left-right direction is corrected. When the terminal 60 is further inserted, it contacts the contact portion 230 of the leaf spring portion 220a. At this time, the back surface of the terminal 60 is in contact with the support portion 300 over the entire flat surface. If the insertion is continued in this state, the tip of the terminal 60 comes into contact with the guide portion 170. This contact position is a regular insertion position of the terminal 60. After the terminal 60 is inserted into the terminal connection means 203 of the first terminal connection structure 200 and the second terminal connection structure 201, respectively, the retaining pin 50 is switched from the standby position 501 to the retaining position 502.

  This state is maintained so that a stable connection state does not change even if an inadvertent force is applied to the electric wire from the outside. The retaining pin 50 is switched from the standby position 501 to the retaining position 502. As shown in FIG. 22, the retaining pin 50 is pushed down from the state in which the main body 500 protrudes from the pedestal upper surface 13 a to be in a flush state. In the process, the penetration pin 530 passes through the notch 260 of the second leaf spring member 2202, passes through the hole 600 of the terminal 60 in the second terminal accommodating portion 112, and further passes through the through hole 310 of the support portion 300a. It passes through the hole 600 of the terminal 60 in the first terminal accommodating portion 111, passes through the notch portion 260 of the first leaf spring member 2201, and finally fits the front end into the penetration portion receiving portion 160 on the upper surface of the cover case 40. The stopper position 502 is reached.

  As shown in FIG. 22, the terminal 60 in the first terminal accommodating portion 111 and the terminal 60 in the second terminal accommodating portion 112 are both electrically and mechanically connected in a regular insertion position by one retaining pin 50. The state will be maintained. The electromechanical connection between the terminal 60 and the terminal connection structure 20 is borne by the biasing force acting between the leaf spring portion 220a and the support portion 300a. This is reinforced by the scissors action of the retaining pin 50 in the direction orthogonal to the direction of withdrawal. Since the retaining pin 50 can be switched between the retaining position 502 and the standby position 501 that is the release position by only moving in the vertical direction, the terminal 60 can be connected and held with a simple operation that does not require a dedicated jig. Or the terminal connection apparatus 1 which can be cancelled | released is obtained.

  As shown in FIG. 23, the terminal connection device 1 includes two insertion ports 100 on the front surface and two insertion ports 100 on the rear surface. Thereby, the terminal connection apparatus 1 can perform the electromechanical connection of the four terminals 60 in total. When the terminal 60 is inserted from the insertion port 100 to the normal insertion position and the retaining pin 50 is switched from the standby position 501 to the retaining position 502, the four terminals 60 are electrically and mechanically connected by the terminal connecting device 1. It will be in the state. When releasing the connection state and removing the terminal 60 from the terminal connection device 1, the retaining pin 50 is pulled up to the standby position 501, and the through pin 530 is removed from the hole 600 of the terminal 60. Since the mechanical force that hinders the removal operation of the terminal 60 in this state is removed, the terminal 60 can be removed by applying a force equivalent to the operation of pulling out the terminal 60 that is normally performed.

  As described above, the terminal connection device 1 according to the present invention can easily connect and remove the terminal 60 without using a tool such as a screwdriver, and the electromechanical connection has good conductivity. The entire surface of the terminal 60 is contacted with a relatively thick plate of oxygen-free copper. Further, the pressing is performed by an elastic piece made of stainless steel having high rigidity. Thereby, the terminal connection device 1 that can be used for connection where a relatively large current flows and in which the terminal 60 can be easily attached and detached is obtained.

<Effect> The terminal connection device 1 according to the present embodiment includes terminal connection means 203 including a support portion 300a and a leaf spring portion 220a. Thereby, the terminal connection apparatus 1 which can respond to both a round type terminal and an open type terminal is obtained.
-The terminal connection apparatus 1 which concerns on this embodiment consists of a board | plate material of the copper alloy with favorable electroconductivity in which the support part 300a is comparatively plate-thick, and can contact the terminal 60 on a wide surface. Further, the leaf spring portion 220a is made of a stainless material having a relatively high rigidity. Thereby, the terminal connection device 1 that can be used for connection where a large current of about several tens of amperes to one hundred amperes flows is obtained.

The terminal connection device 1 according to the present embodiment can connect four terminals 60 with one terminal connection structure 20. Further, the terminal connection structure 20 shares one plate spring member 220 and is electrically connected. As a result, the terminal connection device 1 that can easily assemble a 1 → 2 branch circuit and a 1 → 3 branch circuit is obtained.
-The terminal connection apparatus 1 which concerns on this embodiment is provided with the two terminal insertion ports 100 up and down on one side. Thereby, the terminal connection apparatus 1 which can assemble a return circuit without drawing an electric wire is obtained.

-The terminal connecting device 1 which concerns on this embodiment is provided with the leaf | plate spring part 220a, and the elastic piece extends along the insertion direction of the terminal 60 in the leaf | plate spring part 220a. Further, the insertion side of the terminal 60 is provided with a guide taper. Thereby, the terminal connection apparatus 1 provided with the terminal connection means 203 which can insert the terminal 60 smoothly and does not apply an excessive force to the leaf | plate spring part 220a is obtained.
The terminal connection device 1 according to this embodiment is protected by an insulating case 5. Thereby, since there is no exposed part in a connection part, the terminal connection apparatus 1 without a possibility that an inadvertent electrical contact accident may arise is obtained.

The terminal connection device 1 according to this embodiment is protected by an insulating case 5. Thereby, the malfunction by a dust and a water drop does not arise in a connection part, but the highly reliable terminal connection apparatus 1 is obtained.

The terminal connection device 1 according to this embodiment includes a retaining pin 50 that prevents the terminal 60 from coming off, and the retaining pin 50 is configured to switch between the standby position 501 and the retaining position 502. This can be done only by inserting and removing. Thereby, the terminal connection apparatus 1 which can fix the terminal 60 only by inserting / removing the retaining pin 50 is obtained.

The terminal connection device 1 according to the present embodiment can simultaneously fix the two terminals 60 inserted in the upper and lower two stages with one retaining pin 50.

In the terminal connection device 1 according to the present embodiment, the retaining pin 50 has a standby position 501 before receiving the terminal 60, and a retaining position 502 for fixing the terminal 60. This can be done only by inserting / removing the retaining pin 50. Thereby, the terminal connection apparatus 1 which can perform fixing release operation of the moderate terminal 60 is obtained.
The terminal connection device 1 according to the present embodiment is used in a state where the terminal 60 is connected and the retaining pin 50 is pushed down to the retaining position 502. In this state, the outermost surface of the retaining pin 50 is flush with the surface of the case 5. Thereby, the box-shaped terminal connection apparatus 1 comprised by the flat surface without an unevenness | corrugation is obtained.

-The terminal connection apparatus 1 which concerns on this embodiment is provided with the insertion port 540 for pulling out the retaining pin 50 in the retaining position 502. FIG. As a result, the terminal connection device 1 can be obtained which is safe without being hooked carelessly, and can be pulled out by pulling the tip of the driver.
The terminal connection device 1 according to the present embodiment can electrically and mechanically connect the four terminals 60 to the common leaf spring member 220a. As a result, the terminal connection device 1 that can easily assemble a 1 → 3 branch circuit and a 1 → 2 branch circuit is obtained.

-The terminal connection apparatus 1 which concerns on this embodiment is provided with the terminal insertion port 100 in the upper and lower two steps | paragraphs on one side surface. Thereby, the terminal connection apparatus 1 which can assemble a return circuit easily is obtained.
-The terminal connection apparatus 1 which concerns on this embodiment is provided with the terminal guide part which can be elastically deformed by the horizontal direction comprised by two bending parts. Thereby, since the position correction range in the horizontal direction is expanded, the terminal connection device 1 that can correspond to the types of terminals 60 having different sizes is obtained.
A terminal connection device that can be used not only to connect round terminals but also to open terminals, and in particular, with respect to round terminals and laterally open terminals, the retaining effect by the retaining pin 50 is effectively exhibited. 1 is obtained.

The pin control unit 14 is integrally provided on the inner upper portion of the main body case 5, and the cover case 40 is configured to be attached to the opening 120 on the bottom surface of the main body case 5. The main body case 5 is screwed and fixed to the corresponding housing 70 by the flange 11 provided at the lower end of the side surface. Thereby, the terminal connection device 1 in which the lifting of the cover case 40 from the main body case 5 due to the insertion and removal of the terminal 60 is suppressed is obtained.

-Since the main body case 5 is provided with a flange 11 for screw tightening, a separate screw tightening member is not required. Thereby, the terminal connection device 1 with a small number of parts and easy assembly can be obtained.

-Since the penetrating pin 530 of the retaining pin 50 is a separate body from the main body 500, the selection range of materials is expanded. Thereby, as a result of reducing the wear of the material due to repeated insertion / extraction by using an iron material, the terminal connection device 1 having a stable holding force can be obtained.

1 Terminal connection device 5 Case 10 Body case 11 Flange 12 Screw hole (bolt hole)
13 pedestal part 13a pedestal part upper surface 14 pin control part 100 insertion slot 101 first insertion slot 102 second insertion slot 110 terminal accommodating part 111 first terminal accommodating part 112 second terminal accommodating part 120 opening 121 cover accommodating part 122 holding part 122a Groove portion 130 Wire housing portion 131 First wire housing portion 132 Second wire housing portion 133 Partition wall 134 Back wall 135 Slit 140 Press-fit slit 150 Support portion 151 Support base 160 Through portion receiving portion 170 Guide portion 180 Connection portion 181 Fixing base 20 Terminal connection structure 200 First terminal connection structure 201 Second terminal connection structure 203 Terminal connection means 205 Base 220 Leaf spring member 220a Leaf spring portion 2201 First leaf spring member 2202 Second leaf spring member 230 Contact portion 240 Bend portion 250 Connection portion 260 Notch portion 270 Press-fit portion 280 Positioning hole 290 Guide portion 2 DESCRIPTION OF SYMBOLS 1 Support surface 292 Guide surface 293 Bending part 294 Bending part 300 Support member 300a Support part 301 Main body 310 Through-hole 320 Fixing part 330 Positioning hole 340 Contact part 40 Cover case 400 Main body 401 Upper surface 402 Lower surface 403 Side surface 410 Housing part 411 Insertion port 412 Opening 420 First locking portion 421 Second locking portion 430 Removal prevention portion 440 Insertion guide 450 Slit 460 Holding portion 461 Locking portion 470 Positioning hole 50 Retaining pin 500 Main body 501 Standby position 502 Retaining position 510 Pushing portion 530 Through pin (iron pin)
540 Insertion port 550 Groove 560 Notch 570 Locking part 575 Locking part 60 Terminal (crimp terminal)
600 hole 610 electric wire 620 contact part 70 housing

Claims (4)

A terminal connection device including a conductive terminal connection structure in which a conductive terminal provided at the tip of an electric wire is inserted from the outside, and a non-conductive box-shaped case on the outside,
The case is attached to the opening, a main body case having an insertion opening that leads to the inside having the terminal connection structure on two opposing faces, and an opening that leads to the inside on a bottom face adjacent to the two facing faces. A terminal connection device characterized by comprising a cover case.   The main body case is provided with an operation portion of a retaining pin for fixing the terminal in the insertion completion position and the terminal connecting structure on the upper surface facing the terminal connecting surface of the terminal connecting structure, The terminal is fixed to the terminal connection structure when lowered to a position, and the terminal can be inserted into or removed from the terminal connection structure when raised from the push-off position to a standby position. Terminal connection device.   The terminal connection device according to claim 2, wherein the retaining pin includes a main body and a through pin, and the through pin is made of a columnar metal material.   4. The terminal connection according to claim 2, wherein the main body case includes a fixing flange extending outwardly from a lower end of at least one side surface, wherein the flange has a bolt hole for bolting. 5. apparatus.

Images