JP4574117B2 - Plug-in contact and bus duct branch structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention mainly relates to a plug-in contact that can be press-fitted into a branch point and can be electrically branched, and a bus duct branch structure using the plug-in contact.
[0002]
[Prior art]
As a conventional technique related to a plug-in contact that can be electrically branched by being press-fitted into a branching location, Patent Document 1 discloses a branching contact in which a through hole is provided in a conductor and elastic conductive members are provided at least on the left and right sides of the through hole. A conductor branching device is disclosed in which a child is press-fitted and connected to both side walls of the through-hole by press-contacting both outer portions of the elastic conductive portion thereof.
[0003]
As another related technique, Patent Document 2 discloses that a plurality of sets of conductor connecting portions are superposed so that upper and lower plates and left and right plates constituting a housing are arranged and fixed, and a spring is provided in the vicinity of the tip portion from the openings of the left and right plates. An apparatus for connecting a bus duct for pinching and pinching a branching terminal having a property is disclosed.
[0004]
As another related technique, Patent Document 3 discloses a plug-in contact that is press-fitted and connected between connecting conductors, a spring piece is interposed between opposing contact pieces, and a spring force is applied in a direction to separate the contact pieces from each other. An energizing plug-in contact is disclosed.
[0005]
[Patent Document 1]
Japanese Utility Model Sho 62-15795
[Patent Document 2]
Japanese Patent Publication No.49-44387
[Patent Document 3]
JP 11-262142 A
[0006]
[Problems to be solved by the invention]
However, since the techniques of Patent Documents 1 and 2 have a structure in which the conductive member of the plug-in contact is a spring piece, and only the two pieces of spring pieces are biased outwardly to contact each other, There is a possibility that the spring piece may be deformed beyond the desired normal contact state when press-fitting into the branch point or after press-fitting, thereby causing poor contact or lowering of the energization performance. For this reason, there is a problem that branching work is required while paying attention to details, such as press-fitting a plug-in contact at an accurate position, and a great deal of labor is required for the branching work.
[0007]
Furthermore, since the techniques of Patent Documents 1 and 2 are guided to the branching conductor through only the spring piece with which the current is in contact, the spring piece is good for a small-capacity branch, but it is good for a large-capacity branch. The cross-sectional area of will be insufficient. Therefore, it is necessary to prepare a plurality of contact portions and spring pieces, which leads to an increase in cost. In addition, there is a problem in that the entire spring piece is heated to a high temperature, and stable branching cannot be performed.
[0008]
Moreover, although the technique of patent document 3 can eliminate the said trouble, although the distance between the contact members of the branch location which press-fits a plug-in contactor should just be constant, for example, the distance between contact members is If it is wider or narrower than usual, the spring needs to be remade. Then, it is required to test and adjust the outward biasing force against the remade spring, which causes a problem that a great deal of cost and labor are required.
[0009]
The present invention has been made in view of the above problems, and can provide a good electrical contact and can be easily applied to various distances between contact members. It is an object of the present invention to provide a plug-in contact that can cope with the above and a bus duct branch structure using the plug-in contact.
[0010]
[Means for Solving the Problems]
The plug-in contact according to the present invention is a plug-in contact that can be electrically branched by being press-fitted into a contact portion that is at least partially conductive, and an auxiliary member is attached to the spring piece, In the press-fitted state, the spring piece is held between the contact portion of the contact portion and the auxiliary member. For example, a plug-in contact in which an auxiliary member is interposed between opposing spring pieces, at least one of which is conductive, with the contact point being between a conductive contact member and a conductive or non-conductive contact member The conductive spring piece is sandwiched between the contact member and the auxiliary member in a state where the plug-in contact is press-fitted between the contact members. The spring piece can be one or a plurality of two or more.
[0011]
  Also, the plug-in contact of the present invention is a plug-in contact that can be electrically branched by being press-fitted into a contact portion that is at least partially conductive, and at least one of which is a conductive spring piece that is conductive An auxiliary member is interposed between the two, and the auxiliary member biases the opposing spring pieces outwardly in a state where the auxiliary member is press-fitted into the contact portion. Alternatively, it is assumed that the plug-in contact is provided with an auxiliary member on the spring piece, and the reinforcing member is urged outward by the spring piece in a state of being press-fitted into the contact portion, or the spring piece is moved outward by the spring piece. It is set as the structure to energize.The plug-in contact according to the present invention is a plug-in contact that can be electrically branched by being press-fitted into a contact portion that is at least partially conductive, and has a flat plate with a recess at one end in the length direction. An auxiliary member having at least one conductive member opposite to each other in the thickness direction of the auxiliary member, and a bulging portion that bulges the spring piece outward at least, and a press-fitting direction. The auxiliary member is configured to have a bent portion that allows the end portion to enter the recessed portion, and the auxiliary member biases the opposing spring piece outwardly in a state where the end portion is pressed into the contact portion. The plug-in contact according to the present invention is a plug-in contact that can be electrically branched by being press-fitted into a contact portion that is at least partially conductive, and is substantially flat at one end in the longitudinal direction. An auxiliary member having a character portion and opposing spring pieces, at least one of which is electrically conductive, are disposed on both sides of the auxiliary member in the thickness direction, and the spring pieces are bulged out from at least the center outward. The auxiliary member urges the opposing spring piece outwardly in a state where it is press-fitted into the contact location.
[0012]
  The plug-in contact of the present invention is a plug-in contact that can be electrically branched by being press-fitted into a contact portion that is at least partially conductive, and the spring portions on both sides are substantially continuous at the tip. An auxiliary member is interposed between the spring portions of the conductive spring pieces, and the auxiliary member urges the spring portion outward in a state where the auxiliary member is press-fitted into the contact portion. Examples of the spring piece that is continuous at the substantially distal end include an integral spring piece that is folded back at the distal ends of the spring portions on both sides, and a spring piece that is fixed at the substantially distal ends of the spring portions on both sides. .The plug-in contact of the present invention is a plug-in contact that can be electrically branched by being press-fitted into a contact portion that is at least partially conductive, and includes a flat auxiliary member and the auxiliary member. A spring piece having spring portions substantially continuous at the tip is disposed on both sides in the thickness direction, and the spring piece has at least two bulging portions that bulge outward from the center, and press-fitted into the contact portion. The auxiliary member biases the opposing spring pieces outwardly in a state..
[0013]
Furthermore, the plug-in contact according to the present invention is characterized in that the auxiliary member is conductive. In the present invention, the auxiliary member or the spring piece or both of the auxiliary member and the spring piece are made conductive, or one of the spring piece, the opposing spring piece, both of the opposing spring pieces, or a plurality of spring pieces are made conductive. Or an appropriate combination that can be physically combined is included. Further, when the spring piece is made conductive, it is preferable to use a phosphor bronze spring piece, but it is possible to use an appropriate conductive material other than phosphor bronze.
[0014]
  Furthermore, the plug-in contact according to the present invention is characterized in that, in the press-fitted state, the auxiliary member and the conductive spring piece are in contact with each other in at least two or more locations, such as three or four locations. Is possible.The plug-in contact of the present invention is a plug-in contact that can be electrically branched by being press-fitted into a contact portion that is at least partially conductive, and includes a flat auxiliary member and the auxiliary member. Opposite spring pieces, at least one of which is electrically conductive, are disposed on both sides in the thickness direction, and the spring pieces have at least two bulging portions that bulge outward from the center, and are press-fitted into the contact points. In this state, the auxiliary member biases the opposing spring pieces outward..In the plug-in contact according to the present invention, the auxiliary member is conductive, the spring piece is coupled to the auxiliary member with a coupling tool, and the spring piece, the auxiliary member, In contact with two or more points.
[0015]
Further, the bus duct branching structure of the present invention is characterized in that the plug-in contact is press-fitted between the contact members of the bus duct connecting portion connecting the bus duct units as the contact location and branches. For example, a plug-in contact is press-fitted between contact members at arbitrary or predetermined press-fitted locations and branched.
[0016]
Furthermore, in the bus duct branching structure according to the present invention, the bus duct connecting portion has in-phase conductor ends facing each other, or the in-phase conductor ends are overlapped, and a conductive member is placed along the conductor end to in-phase conductors. Ends are electrically connected to each other, and the plug-in contact is press-fitted between the conductive members corresponding to the contact members and branched.
[0017]
In addition, specific matters of other inventions are added to each invention, specific matters of each invention are changed to specific matters of other inventions, or specific matters of each invention are deleted as long as partial effects are achieved. Thus, a higher-level concept is also included in the present invention.
[0018]
[Action]
In the plug-in contact according to the present invention, the spring piece is held between the contact portion of the contact portion and the auxiliary member, or the reinforcing member biases the spring piece or the spring portion outward, so that good electrical contact is achieved. It is possible to prevent the spring piece and the spring portion from being deformed when the plug-in contactor or the spring piece or the spring portion is press-fitted between the contact members or after the press-fitting. Or, when the distance between the contact members is longer or shorter than usual, the thickness of the auxiliary member can be changed according to the size of the contact location, or the auxiliary member having a different thickness can be used. This is possible, and it is possible to reduce the manufacturing cost and improve the workability.
[0019]
In addition, by using an auxiliary member having conductivity, it is possible to branch not only by a conductive spring piece or spring part but also by conducting to an auxiliary member in contact with the spring piece or spring part. Therefore, even when branching a large capacity, it can be stably branched with good conductivity, for example, the spring piece or the entire spring portion is heated and the electrical safety is not hindered. . Furthermore, by appropriately changing the thickness, width, and in some cases the material of the conductive auxiliary member according to the branch capacity and branch target, it is possible to easily and appropriately handle various branch capacities. A branch can be made. Furthermore, by bringing the auxiliary member into contact with one or both conductive spring pieces or spring portions at least at two or more points, the contact resistance can be reduced compared to one-point contact, and branching can be performed with good conductivity. It becomes possible.
[0020]
In addition, for example, for the bus duct connection portion that electrically connects the in-phase conductor ends to each other by placing the in-phase conductor ends facing each other or overlapping the in-phase conductor ends and placing the conductive members along these, By making the plug-in contact into a branch structure that presses between conductive members and branches, it is not necessary to manufacture and prepare a new branch bus duct or to install a large branch bus duct during construction. It is possible to reduce costs and improve workability.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings. 1 to 3 show a plug-in contact according to a first embodiment of the present invention, FIG. 1 is an exploded perspective view of the plug-in contact, and FIG. 2 is a front explanatory view showing a state before and after press-fitting of the plug-in contact. FIG. 3 is an explanatory front view showing a case in which plug-in contacts corresponding to contact members at various distances are press-fitted.
[0022]
As shown in FIGS. 1 and 2, the plug-in contact 1 according to the present embodiment includes a flat auxiliary member 2 or an intermediate member, and elastic spring pieces installed on both sides in the thickness direction of the auxiliary member 2. 3 and the auxiliary member 2 and the spring pieces 3 on both sides thereof are coupled by a coupling tool 4 such as a rivet. The auxiliary member 2 is made of a conductive material, and is V-shaped by being chamfered in a substantially V-shape at one end in the length direction in order to facilitate press-fitting between contact members 5 and 5 described later. A coupler insertion hole 22 through which the coupler 4 such as a rivet is inserted is formed in the vicinity of the other end in the length direction. The spring piece 3 is also formed of a conductive material, and a bulging portion 32 that bulges in a substantially arc shape from the center to the outside is formed from approximately the center in the length direction to the tip portion 31 or in the vicinity of one end. In the vicinity of the other end, a coupler insertion hole 34 is similarly formed in a flat flat portion 33 formed from the other end to substantially the center at a position corresponding to the coupler insertion hole 22 of the auxiliary member 2. .
[0023]
In the plug-in contact 1 in which the auxiliary member 2 and the spring pieces 3, 3 on both sides thereof are coupled by the coupler 4, the flat portion 33 of the spring piece 3 is a side surface of the auxiliary member 2 as shown in FIG. And the bulging portion 32 of the spring piece 3 is away from the side surface of the auxiliary member 2, and the distance between the substantially maximum bulging portions of the bulging portions 32 and 32 is a contact member described later. It is longer than the distance between 5 and 5. The tip 31 of the spring piece 3 is positioned below the tip of the V-shaped portion 21 that is the tip of the auxiliary member 2, and the distance between the tip 31, 31 of the spring piece 3 is that of the auxiliary member 2. It is narrower than the thickness. As described above, the distance between the tip portions 31 and 31 is made shorter than the thickness of the auxiliary member 2 so that the auxiliary member 2 is automatically press-fitted between contact members 5 and 5 (to be described later) to automatically spring pieces 3 and 3. Can be press-fitted, and the plug-in contact 1 can be easily press-fitted between the contact members 5 and 5, and the spring piece 3 is deformed at the time of press-fitting and after press-fitting in combination with the presence of the auxiliary member 2. Can also be prevented.
[0024]
As shown in FIG. 2B, when the plug-in contact 1 is press-fitted between the two flat plate-like conductive contact members 5 and 5, the bulging portions 32 and 32 of the spring pieces 3 and 3 are inserted. Since the central portion of the contact member 5 is more distant than the contact members 5 and 5, pressure is applied to the contact members 5 and 5 by the spring force or elastic force of the bulging portion 32. 3 contacts the contact member 5 with a strong contact pressure. Further, in the contacted state, the tip portions 31 of the spring pieces 3 3 overlap or collide with each other, and the vicinity of the corner which is the abutment portion of the side surface with the V-shaped portion 21 of the auxiliary member 2 is the spring piece. Since the spring piece 3 is urged outward by abutting against a part of the contact piece 3, the contact pressure on the contact member 5 of the bulging portion 32 of the spring piece 3 at the contact portion 6 is strengthened and stabilized, and the contact area Will also be increased. In addition, at least the auxiliary member 2 and the spring piece 3 are two points at the corner near the tip of the auxiliary member 2 and the connecting portion by the coupler 4 (two points up and down across the contact point between the contact member 2 and the spring piece 3). The auxiliary member 2 and the spring piece 3 come into contact with each other with a strong and stable contact pressure due to the reaction acting on the spring piece 3 at the corner.
[0025]
Accordingly, the contact resistance between the contact member 5 and the spring piece 3 and the contact resistance between the spring piece 3 and the auxiliary member 2 are greatly reduced, and the contact member 5 is transferred to the spring piece 3 or from the contact member 5 through the spring piece 3. A smooth and stable electrical connection to the auxiliary member 2 can be ensured, the contact member 5 and the plug-in contact 1 can be electrically connected, and good branching can be performed from the contact member 5. That is, since the auxiliary member 2 and the spring piece 3 are in contact at two upper and lower points sandwiching the contact portion between the contact member 5 and the spring piece 3, the contact member 5 through the spring piece 3 and the upper contact portion. A first conduction path that conducts to the auxiliary member 2 and a second conduction path that conducts from the contact member 5 via the spring piece 3 and the lower contact point are formed, and the contact resistance is reduced. In addition, the vicinity of the coupling portion by the coupling tool 4 of the plug-in contact 1 is connected to a cable or the like not shown in the figure, and the cable and the device are connected to branch.
[0026]
By using the plug-in contact 1 of the first embodiment, the contact resistance between the contact member 5 and the spring piece 3 and the spring piece 3 when the plug-in contact 1 is press-fitted between the contact members 5 and 5. Therefore, the contact resistance between the auxiliary member 2 and the auxiliary member 2 can be greatly reduced, and good branching can be ensured and stable branching can be performed. Further, since the auxiliary member 2 is interposed up to the vicinity of the distal end portion 31 of the spring piece 3 in the press-fitting direction, the plug-in contact 1 is prevented from being deformed during or after the press-fitting between the contact members 5 and 5. can do. In addition, since the auxiliary member 2 has a conductive structure, it is possible to easily cope with a case where the branching capacity is large by changing the thickness and width of the auxiliary member 2.
[0027]
Further, as shown in FIG. 3, even when the distance between the contact members 5 and 5 is variously changed, the spring piece 3 is changed or the elastic force of the plug-in contact 1 or the spring piece 3 after the change is tested. Therefore, it is possible to cope with the problem only by changing the thickness of the auxiliary member 2, so that the workability can be improved and the cost can be reduced.
[0028]
For example, as shown in FIG. 3 (a), the distance between the contact members 5 and 5 is a relatively large distance or the like as a normal distance A, and the thickness of the auxiliary member 2 of the plug-in contact 1 corresponding to the distance A is shown. When the thickness is B, for example, as shown in FIG. 3B, when the distance between the contact members 5 and 5 is smaller than the normal distance A by α, the thickness of the auxiliary member 2 is set to the normal thickness. If the distance between the contact members 5 and 5 is wider than the normal distance A by β as shown in FIG. 3C, the thickness of the auxiliary member 2 is reduced. By making it thicker than the normal thickness B by β, the corner in the vicinity of the tip of the auxiliary member 2 contacts the spring piece 3 at the time of press-fitting. Therefore, even if the thickness of the auxiliary member 2 is changed, a predetermined level or a required level of elasticity is achieved. It is possible to press-fit between the contact members 5 and 5 while maintaining the force, and the distance between the contact members 5 and 5 at the time of press-fitting. And by keeping the difference between the thickness of the auxiliary member 2 fixed, it is possible to secure the elastic force of a predetermined level of the spring piece 3 interposed auxiliary member 2 and the contact members 5, 5 inter.
[0029]
Next, an example in which the plug-in contact 1 is used for a bus duct is shown in FIGS. FIG. 4 is a partially cutaway plan view of a bus duct connecting portion connecting bus ducts, and FIG. 5 is a partially cutaway sectional view showing a state in which a plug-in contact is press-fitted into the bus duct connecting portion.
[0030]
As shown in FIG. 4, the bus duct connecting portion 100 according to the present embodiment is a connecting unit that connects bus ducts 200 and 200 formed by housing three-wire conductors 201, and in-phase conductor end portions 201 a of the bus ducts 200 and 200. -201a is arrange | positioned facing each other, and these conductive end parts 201a and 201a are electrically connected by the electroconductive member 101 along the thickness direction both sides. In the bus duct connecting portion 100, four insulating separators 103 are provided along the conductive member 101 between the different-phase conductors 201 and 201 and between the outermost conductor 201 and the connection side plate 102 and insulate them from each other. The conductive member 101, the insulating separator 103, and the connection side plate 102 are fastened with a fastener 104 made of bolts, nuts, etc., and the conductor end portions 201a and 201a of the same phase of the bus ducts 200 and 200 between the conductive members 101 and 101 are connected. This is an electrically connected configuration. In addition, a connection cover 105 is provided to cover the openings on both sides in the width direction of the bus duct connection part 100, and the connection cover 105 is provided with a plug-in opening 106 through which the plug-in contact 1 can be inserted.
[0031]
When the plug-in contact 1 of the first embodiment is press-fitted into the bus duct connecting portion 100, the plug-in contact is made from the plug-in opening 106 at the intermediate position in the longitudinal direction of the bus duct connecting portion 100 as shown in FIG. The child 1 is inserted and press-fitted between the conductive members 101 and 101 corresponding to the contact member. The plug-in contact 1 can be press-fitted satisfactorily without interfering with the conductor 201 of the bus duct 200 by being press-fitted into the intermediate position of the bus duct connection part 100.
[0032]
By pressing the plug-in contact 1 into the bus duct connecting portion 100, current is guided from the conductor end 201a of one bus duct 200 to the spring piece 3 of the plug-in contact 1 through the conductive member 101, Since the current can be guided to the cable or the like not shown in the drawing through the spring piece 3 or from the spring piece 3 through the auxiliary member 2, the current of the bus duct main line is transferred to other devices by the plug-in contact 1. It is possible to branch.
[0033]
Since the plug-in contact 1 is used for branching at the bus duct connecting portion 100 as described above, it is not necessary to separately manufacture and prepare a branching bus duct, and it is not necessary to construct a heavy branching bus duct at the time of construction. , Cost reduction and workability can be improved. In the case of the bus duct 200, the thickness of the conductor 201 is often changed according to the current capacity. In such a case, the thickness of the auxiliary member 2 of the plug-in contact 1 can be easily changed. From this point, it is possible to reduce costs and improve workability.
[0034]
As mentioned above, although embodiment of the plug-in contact of this invention and bus duct branch structure was described, this invention is not limited to the said embodiment, Expansion and deformation | transformation like the following examples are possible.
[0035]
For example, the structure of the plug-in contact of the present invention is not limited to the first embodiment, and the first bulge portion is formed on the spring piece 3 as in the plug-in contact 1 shown in FIG. 32a and a second bulging portion 32b are provided, and two bulging portions 32 are provided. At the time of press fitting, the vicinity of the coupling portion by the coupler 4, the corner near the end portion of the auxiliary member 2 in the press fitting direction, the first bulging portion 32a and the second bulging portion 32b. A structure in which the auxiliary member 2 and the spring piece 3 are in contact with each other at three points, ie, an inward projecting portion or a point between the bulging portion 32b, or a plug-in contact shown in FIG. 6B. Like the child 1, the recess 23 is provided at the end of the auxiliary member 2 in the press-fitting direction, and the end of the spring piece 3 in the press-fitting direction is bent so as to enter the recess 23, thereby forming a bent portion 35. Near the coupling portion, the outer corner of the end portion of the auxiliary member 2 in the press-fitting direction, the tip of the concave portion 23 and the bent portion 35 of the spring piece 3 May be structured to contact at three points of contact points, the three-point contact to reduce further the contact resistance of the auxiliary member 2 and the spring piece 3, it is possible to excellent and stable electrical connection.
[0036]
Moreover, the bus duct from which the plug-in contact or the bus duct branching structure of the present invention branches is not limited to the above embodiment, and can be branched corresponding to bus ducts having various shapes and configurations. In addition to the wire type, it may be a two-wire type or a four-wire type or more bus duct. In addition to the insulation-coated bus duct that is covered with an insulating material and accommodated in the housing, a predetermined distance between the conductors is opened with air. The present invention can also be applied to an air-insulated bus duct for insulation.
[0037]
In the above embodiment, the plug-in contact of the present invention or the bus duct connecting portion where the bus duct branching structure branches is the so-called butt-connected bus duct connecting portion 100 in which the conductor end portions 201a and 201a of the same phase face each other. However, the present invention can also be applied to the so-called overlap connection in which the conductor ends of the same phase are overlapped and connected, and the butt connection from the conductive member provided outside the overlap portion. It is possible to branch similarly.
[0038]
In the plug-in contact 1 described above, an example of a rivet has been mentioned as the coupler 4 that couples the auxiliary member 2 and the spring piece 3. However, the coupler 4 may be a fastening tool such as a bolt or a nut. 2 and the spring piece 3 are appropriately combined with each other, such as a structure in which a rivet is used to squeeze and a spring piece 3 is not formed, a structure in which welding is performed, or a structure in which a conductive adhesive is used. .
[0039]
In the above-described embodiment, the contact member 5 such as the conductive member 101 has been described in the case where both the contact members 5 and 5 into which the plug-in contact 1 is press-fitted have conductivity. However, at least one of the contact members 5 has been described. The spring piece 3 of the plug-in contact 1 only needs to be conductive if it contacts the contact member 5 having conductivity.
[0040]
Moreover, although the said embodiment made a contact location between a pair of contact members 5 * 5 or between the electroconductive members 101 * 101, and demonstrated the case where the plug-in contact 1 was press-fit in the said contact location, this invention. The contact location and contact member are suitable as long as the plug-in contact 1 can be press-fitted. For example, as shown in FIG. 7, a thick plate with an opening 51 at the center is electrically conductive. It is possible to adopt a configuration in which the plug-in contact 1 is press-fitted into the opening 51.
[0041]
Moreover, although the said embodiment demonstrated the case where a pair of spring piece 3 * 3 was press-fit in a contact location, the structure of a spring piece is not limited to this, For example, front-end | tip part 31 * 31 of FIG. 2 may be integrated with each other and folded at the tip, and may be a spring piece having bulging portions 32 and 32 as spring portions on both sides, or the tip portions 31 and 31 in FIG. It is good also as a spring piece etc. which are integrated and has the bulging part 32 * 32 used as a spring part on both sides.
[0042]
【The invention's effect】
By using the plug-in contact or bus duct branching structure of the present invention, good electrical contact can be obtained. Moreover, the effect which can be easily adapted with respect to the distance between various contact members is show | played, and cost reduction and improvement of workability | operativity can also be aimed at. In addition, it is possible to easily and appropriately handle large-capacity branching, and it is possible to perform good and stable branching.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a plug-in contact according to a first embodiment.
FIG. 2A is a front explanatory view showing a state before press-fitting of the plug-in contact according to the first embodiment.
(B) Front explanatory drawing which shows the state after the press fit of the plug-in contact of 1st Embodiment.
FIG. 3A is an explanatory front view showing a case where the plug-in contact according to the first embodiment is press-fitted between contact members having a normal interval.
(B) Front explanatory drawing which shows the case where the plug-in contact of 1st Embodiment is press-fitted between the contact members of a space | interval narrower than usual.
(C) Front explanatory drawing which shows the case where the plug-in contact of 1st Embodiment is press-fitted between the contact members of a space | interval wider than usual.
FIG. 4 is a partially cutaway plan view of a bus duct connecting portion connecting bus ducts.
FIG. 5 is a partially cutaway sectional view showing a state in which the plug-in contact according to the first embodiment is press-fitted into a bus duct connecting portion.
FIG. 6A is a front view showing a plug-in contact according to a second embodiment;
(B) The front view which shows the plug-in contact of 3rd Embodiment.
FIG. 7 is a perspective explanatory view showing an example of another contact member.
[Explanation of symbols]
1 Plug-in contact
2 Auxiliary members
23 recess
3 Spring pieces
31 Tip
32 bulge
32a First bulging part
32b Second bulge
33 Flat part
35 Bend
4 couplings
5, 50 Contact member
51 opening
100 Bus duct connection
101 Conductive member
106 Plug-in opening
200 Bus duct
201a Conductor end

Claims (6)

A plug-in contact that can be electrically branched by being press-fitted into a contact portion that is at least partially conductive,
An auxiliary member having a concave shape at one end in the length direction in a flat plate shape;
Opposing spring pieces, at least one of which is electrically conductive, are disposed on both sides in the thickness direction of the auxiliary member,
The spring piece is configured to have at least a bulging portion that bulges outward and a bent portion that allows an end portion in the press-fitting direction to enter the concave portion.
A plug-in contact, wherein the auxiliary member urges the opposing spring piece outwardly in a state where it is press-fitted into the contact portion. A plug-in contact that can be electrically branched by being press-fitted into a contact portion that is at least partially conductive,
An auxiliary member that is flat and has a substantially V-shaped portion at one end in the length direction;
Opposing spring pieces, at least one of which is electrically conductive, are disposed on both sides in the thickness direction of the auxiliary member,
The spring piece has at least a bulging portion that bulges outward from the center,
A plug-in contact, wherein the auxiliary member urges the opposing spring piece outwardly in a state where it is press-fitted into the contact portion. A plug-in contact that can be electrically branched by being press-fitted into a contact portion that is at least partially conductive,
A flat auxiliary member;
Opposing spring pieces, at least one of which is electrically conductive, are disposed on both sides in the thickness direction of the auxiliary member,
The spring piece is configured to have at least two bulging portions that bulge outward from the center,
A plug-in contact, wherein the auxiliary member urges the opposing spring piece outwardly in a state where it is press-fitted into the contact portion. The auxiliary member is conductive,
The spring piece is coupled to the auxiliary member with a coupling tool,
The plug-in contact according to any one of claims 1 to 3 , wherein the spring piece and the auxiliary member are contacted at two or more points in addition to the coupling portion by the coupling tool. A bus duct branching structure characterized in that the plug-in contact according to any one of claims 1 to 4 is press-fitted and branched between connecting members of bus duct connecting portions that connect bus duct units as the contact points. The bus duct connecting portion is configured to electrically connect the conductor ends of the same phase with the conductor ends of the same phase facing each other or overlapping the conductor ends of the same phase and a conductive member along the conductor ends. 6. The bus duct branch structure according to claim 5 , wherein the plug-in contact is press-fitted between the conductive members corresponding to the contact members and branched.

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