JP2010212081A - Connector and assembling method for the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve operability when a connector connecting an electric wire with electrical equipment is mounted on the electrical equipment. <P>SOLUTION: The connector includes a terminal 5 having a mounting hole 51 and an electric wire connection section 52 fixed on a terminal block in the electrical equipment 2 as a connection target, a terminal block 4 fixing an end at an electric wire connection section 52 side of the terminal 5 and forming a through-hole to be inserted by the electric wire 3 connected with the electric wire connection section 52, and the electric wire 3 inserted into the through-hole from an opposite side of the terminal 5 where an insulated coating 52 at the pointed head is removed and connected with the electric wire connection section 52. The terminal block 4 includes a plurality of holes 43 fixed on a connector mounting section 22 with an opening formed on a device wall 21 opposite to the terminal block in the electrical equipment 2 connected to the terminal 5 by a screw member. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a connector for connecting an electric wire to an electric device and a method for assembling the connector.

  As this type of connector, for example, one described in Patent Document 1 is known. According to Patent Document 1, a flange is formed on a cylindrical housing through which an electric wire is inserted, and the flange is formed so as to be fixed to a mounting surface of an electrical device to be connected. A terminal block provided in the electrical device A terminal having a mounting hole fixed by a screw member is connected to the tip of the electric wire. Further, a waterproof rubber ring is provided on the flange surface for fixing the housing. Then, when attaching the connector to the electrical device, the flange is fixed to the mounting surface of the electrical device with a bottle, the electric wire inserted into the housing is taken in and out, and the terminal mounting hole is aligned with the position of the terminal block mounting screw. It is made to fix with a member.

JP 2002-231409 A

  By the way, in the connector described in patent document 1, in order to adjust the position of the terminal connected to the tip of the electric wire to the position of the terminal block in the electric equipment, Therefore, there is a problem that the assembling work becomes complicated.

  The problem to be solved by the present invention is to improve workability when attaching a connector for connecting an electric wire to an electric device to the electric device. Another object is to realize a method for assembling the connector.

  In order to solve the above-mentioned problems, the connector of the present invention includes a terminal having a mounting hole and a wire connecting portion fixed to a terminal block in an electric device to be connected by a screw member, and an end of the terminal on the wire connecting portion side. A terminal block in which a through hole into which an electric wire connected to the electric wire connecting portion is inserted is formed, and the insulating coating at the tip is removed, and the electric wire connection is inserted into the through hole from the opposite side of the terminal The terminal block is fixed to the connector mounting portion having an opening formed in the container wall facing the terminal block in the electrical equipment to which the terminal is connected by a screw member. It has a hole.

  With this configuration, since the terminals are fixed to the terminal block, simply fixing the terminal block to the connector mounting portion of the electric device allows the terminal position to be naturally positioned at the terminal block in the electric device. Since the alignment is performed, workability when the connector is attached to the electric device is improved.

  By the way, when connecting an electric wire to the terminal of the terminal block, the tip of the electric wire must be positioned at the electric wire connecting portion of the terminal and connected by welding or the like while the electric wire is inserted into and taken out of the through hole. However, after positioning the tip of the wire, when the tip of the wire is welded, etc., if an external force is applied to the wire and the position shifts, the position must be aligned again, which makes the work complicated There is.

  Therefore, the connector of the present invention forms a cylindrical wire support portion that protrudes around the through hole of the terminal block, has an inner diameter that is smaller than the wire into which the wire is inserted, and an electric wire that is inserted into the wire support portion. It is preferable to provide a cylindrical elastic member having an outer diameter larger than that of the support portion. Thereby, since the electric wire is held by the electric wire support portion by the frictional force of the elastic member, even if some external force acts on the electric wire, the relative positional deviation between the electric wire tip and the electric wire connecting portion can be suppressed. Positioning work becomes easy.

  Furthermore, it is preferable to have a pressing member that has a pressing part that presses the elastic member into the electric wire support part and is locked to the electric wire support part. According to this, due to the compression deformation of the pushed elastic member, the adhesion force between the elastic member and the electric wire support member increases. As a result, it is possible to improve the waterproofness required when used in an electric device provided in the atmosphere.

  In this case, a protruding portion that protrudes along the circumferential direction is formed on the cylindrical inner surface of the elastic member, and a protruding portion that protrudes along the circumferential direction is formed on the cylindrical outer surface of the elastic member. You can also Thereby, the adhesive force with the electric wire of an elastic member and the adhesive force with an electric wire support member can be enlarged further, and waterproofness can be improved more.

  In the connector assembling method of the present invention, the end of the terminal having the attachment hole and the electric wire connecting portion fixed to the electric device to be connected and the electric wire connecting portion is fixed and connected to the electric wire connecting portion of the terminal. A first step of preparing a terminal block formed with a through hole into which a wire to be inserted is inserted and a cylindrical electric wire support part projecting around the through hole on the opposite side of the terminal, and removing the insulation coating at the tip A second step of attaching a cylindrical elastic member having an inner diameter smaller than the outer diameter of the electric wire and larger than the inner diameter of the electric wire support portion of the terminal block to the formed electric wire; A third step of inserting the tip of the electric wire into the through hole of the terminal block from the side and inserting the elastic member into the electric wire support portion of the terminal block; and the tip of the electric wire is inserted into the attachment hole of the terminal The position that does not interfere with the screw member The fourth step of the wire to the out adjustment, constituted by a fifth step of connecting by welding the tip of the wire to the wire connecting portion of the terminal.

  With this configuration, the electric wire is inserted into the through hole of the terminal block, and the elastic member attached to the electric wire is inserted into the electric wire support portion, and then the tip of the electric wire is positioned. It is held on the wire support by the frictional force. For this reason, even if some external force acts on an electric wire, since the relative position shift of the front-end | tip of an electric wire and an electric wire connection part can be suppressed, the positioning operation of an electric wire becomes easy.

  In the assembling method in this case, before the elastic member is attached to the electric wire, the elastic member inserted into the electric wire support portion is formed on the outer surface of the electric wire support portion, the hole through which the electric wire is inserted, the holding portion that pushes the elastic member. After attaching the holding member having the locked portion to be locked to the locked portion to the electric wire and connecting the electric wire to the terminal by welding, the elastic member is pushed into the electric wire support portion with the holding member, It is preferable to lock the locked portion to the locking portion of the wire support portion.

  That is, after inserting and removing the electric wire and aligning the position of the tip of the electric wire, before connecting the electric wire to the terminal by welding or the like, if the elastic member is pushed into the electric wire support portion with the holding member, the electric wire moves together with the elastic member. The position of the tip of the electric wire may be displaced. In this regard, if the elastic member is pushed into the electric wire support portion with the pressing member after the electric wire is connected to the terminal by welding or the like, the positional shift can be prevented, so that the assembling work is facilitated.

  On the other hand, if the elastic member is pushed into the electric wire support portion by the holding portion and then the electric wire is taken in and out to be aligned, the elastic member is compressed and deformed to increase the frictional force against the electric wire, so that it becomes difficult to take in and out the electric wire. In this respect, after connecting to the terminal by welding or the like, the elastic member is pushed in by the holding portion, so that the position of the electric wire is not shifted.

  ADVANTAGE OF THE INVENTION According to this invention, the workability | operativity at the time of attaching the connector which connects an electric wire to an electric equipment to an electric equipment improves. Further, the connector can be easily assembled.

It is a perspective view of the connector of one embodiment concerning the present invention. It is sectional drawing of the connector of this embodiment. It is a disassembled perspective view of the connector of this embodiment. It is a perspective view which shows the state which inserted the electric wire and the elastic member in the terminal block when assembling the connector of this embodiment. It is a perspective view which shows the state which aligned the edge part of the insulation coating of the electric wire with the reference plane of a terminal block when assembling the connector of this embodiment. It is a principal part perspective view of FIG. It is a principal part perspective view which shows the state which connected the electric wire to the terminal by ultrasonic welding when assembling the connector of this embodiment. It is a perspective view which shows the state which inserted the volt | bolt in the attachment hole of the terminal of the connector of this embodiment.

Hereinafter, an embodiment of a connector according to the present invention will be described with reference to the accompanying drawings.
As shown in FIG. 1, the connector 1 of this embodiment is for connecting the electric wire 3 (for example, three electric wires for power supplies) to the electric equipment 2 (for example, electric motor). In the electric device 2, a horizontally long rectangular connector attaching portion 22 for attaching the terminal block 4 to a device wall 21 facing a terminal block (not shown) provided in the electric device 2 is formed. The connector mounting portion 22 has screw holes 23 formed at four corners. In the illustrated example, the connector mounting portion 22 is formed with an insertion hole 24 that is long in the left-right direction and is semicircular at both ends. In the illustrated example of the connector mounting portion 22, the insertion hole 24 is formed at a position slightly above the center in the vertical direction. Thereby, it can prevent attaching up and down accidentally at the time of attachment of connector 1. FIG.

  As shown in FIGS. 1 to 3, the terminal block 4 is made of a synthetic resin material having an insulating property and is formed in a substantially flat plate shape having substantially the same rectangle as the connector mounting portion 22. At the four corners of the terminal block 4, holes 43 for fixing the terminal block 4 to the connector mounting portion 22 by screw members (for example, bolts) are formed at positions facing the screw holes 23 of the connector mounting portion 22. The surface of the terminal block 4 on the connector mounting portion 22 side is formed as a mounting surface 42 and is provided with a convex portion 44 that fits into the insertion hole 24 of the electrical device 2. The convex portion 44 is formed at a position slightly above the center in the vertical direction in the illustrated example of the mounting surface 42 corresponding to the insertion hole 24 of the connector mounting portion 22. The convex portion 44 has a plurality (three in the illustrated example) of terminals 5 fixed in parallel with a predetermined interval.

  The terminal block 4 is formed with through holes 6 into which the plurality of electric wires 3 connected to the electric wire connecting portion 52 of the terminal 5 are inserted. In addition, cylindrical wire support portions 7 are formed around the opening of the through hole 6 on the side opposite to the mounting surface 42 of the terminal block 4. The plurality of wire support portions 7 are formed so as to share a part of the cylindrical walls adjacent to each other. Locking portions 15 projecting in a rectangular parallelepiped shape are provided above and below the peripheral surfaces of the wire support portions 7 on both sides.

  The terminal 5 is formed of a flat plate material having conductivity, and has a mounting hole 51 and an electric wire connection portion 52 that are fixed to a terminal block in the electric device 2 by a screw member (for example, a bolt). The end of the terminal 5 on the wire connecting portion 52 side protrudes and is fixed at a position determined by the convex portion 44 of the terminal block 4. That is, the protruding length of each terminal 5 is determined such that when the terminal block 4 is fixed to the connector mounting portion 22, each mounting hole 51 is naturally aligned with the position of the screw hole provided in the terminal block. It has been. In the illustrated example, the length of the middle terminal 5 is shorter than the other two.

  The electric wire connection part 52 of each terminal 5 is formed in the same predetermined length. The wire connection portion 52 is a pair of rectangular base portions 53 and a pair of parallelly provided upright from both ends of the base portion 53 so that the core wire portion 31 from which the insulation coating 32 of the electric wires 3 is removed is connected. A side wall 54 is formed. A plurality of concave portions 55 extending in the width direction of the terminal 5 are provided on the surface of the wire connection portion 52 at intervals. Thereby, the fixing force of the core wire part 31 and the electric wire connection part 52 of the electric wire 3 is enlarged.

  The electric wire 3 is provided with an insulating coating 32 on the outer periphery of a core wire portion 31 made of strands that are a plurality of thin conductors. In addition, you may form the core wire part 31 with one strand. The insulating coating 32 is removed from the tip of the electric wire 3, and the core wire portion 31 is exposed to a length equal to or shorter than the length of the electric wire connection portion 52, for example, approximately the same length as the electric wire connection portion 52. Removal of the insulation coating 32 of the electric wire 3 is automatically performed using an apparatus. Note that the insulation coating 32 may be removed manually.

  The elastic member 8 is formed in a cylindrical shape using a material having elasticity such as rubber, is attached to the outer periphery of the electric wire 3, and is inserted into the electric wire support portion 7. The length of the elastic member 8 in the axial direction is shorter than the length of the electric wire support portion 7 in the axial direction. The inner diameter of the elastic member 8 is slightly smaller than the electric wire 3, and the outer diameter is slightly larger than the inner diameter of the electric wire support portion 7. On the inner surface of the elastic member 8, lips 81, which are two projecting portions projecting along the circumferential direction, are formed at intervals. Moreover, the lip | rip 82 which is two protrusion parts which protrude along the circumferential direction is formed in the outer surface of the elastic member 8 at intervals. The number of lips 81 and 82 is not limited to two, but may be one or three or more.

  The pressing member 9 is for pressing the elastic member 8 into the electric wire support 7 and is formed of a synthetic resin material. The presser member 9 includes a cylindrical presser part 91 that presses the cylindrical elastic member 8 into the electric wire support part 7, an annular base part 93 formed at the base end of the presser part 91, and the base part 93 that supports the electric wire. In order to fix to the part 7, it has the cylindrical mounting part 92 crowned by the outer periphery of the electric wire support part 7, and in this embodiment, it forms by connecting the some base part 93 and the mounting part 92 which adjoin. . The electric wire 3 can be inserted into the insertion hole 94 of each annular base portion 93.

  The mounting portion 92 is formed with a locked portion 16 that engages with a locking portion 15 provided on the wire support portion 7 and fixes the presser member 9 to the wire support portion 7. The locked portion 16 is formed with a rectangular hole that engages with the locking portion 15, and slits are provided on both sides of the rectangular hole so as to be easily elastically deformed. When the pressing member 9 is attached to the wire support portion 7, the surface 15a of the locking portion 15 with which the end portion of the locked portion 16 first comes into contact is inclined. This makes it easy for the locked portion 16 to get over the locking portion 15 and engage.

  In this embodiment, each part which comprises the pressing member 9 is divided | segmented into upper and lower two in the example of illustration, and is formed. One end of the two pressing members 9a and 9b is provided with a flexible connecting portion formed of the same material as that of the pressing members 9a and 9b, and a flexible connecting portion is provided at the other end. Thereby, the holding member 9 can be attached to the wire support portion 7 in the final step after the wire 3 is connected to the terminal block 4.

  Next, a method for assembling the connector 1 of this embodiment will be described. First, the terminal block 4 in which the terminal 5 is fixed and the through hole 6 and the wire support portion 7 are formed is prepared (first step). For example, the terminal block 4 in which the terminals 5 are integrated is formed by insert molding. In addition, as for the fixing method of the terminal 5, as long as the terminal 5 is fixed in the state which protruded in the defined position, you may use other methods, such as screwing, without using insert molding.

Next, the elastic members 8 are respectively attached to the plurality of electric wires 3 (second step). The electric wire 3 is used in which the insulating coating 32 at the tip is removed and the core wire portion 31 is exposed for a predetermined length. The insulating coating 32 may be removed after the elastic member 8 is attached.
And the front-end | tip of the some electric wire 3 is inserted in the through-hole 6 of each predetermined terminal block 4 from the electric wire support part 7 side, as shown in FIG. 4, and each elastic member 8 is pushed into the electric wire support part 7 ( (3rd process).

  The electric wires 3 are taken in and out and adjusted so that the tips of the electric wires 3 inserted into the through holes 6 do not interfere with the screw members inserted into the mounting holes 51 of the terminals 5 (fourth step). For example, as shown in FIGS. 5 and 6, the alignment is performed by visually observing the end surface 32 a of the insulating coating 32 from which the electric wire 3 has been removed on the surface 44 a where the opening of the through hole 6 of the convex portion 44 of the terminal block 4 is formed. It can be easily done by aligning with. As another positioning means, for example, the tip of the electric wire 3 may be visually aligned with the tip of the side wall of the electric wire connecting portion 52 of the terminal 5.

  In this way, since the elastic member 8 attached to the electric wire 3 is inserted into the electric wire support portion 7 and then the tip of the electric wire 3 is positioned, the electric wire 3 is moved by the frictional force of the elastic member 8. Retained. For this reason, even if some external force acts on the electric wire 3, since the relative position shift of the front-end | tip of the electric wire 3 and the electric wire connection part 52 can be suppressed, the positioning operation | work of the electric wire 3 becomes easy.

  After positioning, the exposed core wire portion 31 of the wire 3 is connected to the wire connection portion 52 of the terminal 5 by welding or the like as shown in FIG. 7 (fifth step). This connection is performed by ultrasonic welding or welding by resistance welding. When performing ultrasonic welding, an ultrasonic welding apparatus is used, for example, the anvil is brought into contact with the back surface of the wire connecting portion 52 of the terminal 5 (the surface opposite to the surface on the side wall 54 side) and attached to the horn. While the rectangular parallelepiped chip is pressed against the core wire portion 31 toward the wire connecting portion 52 and pressed, the core wire portion 31 is heated and welded to the wire connecting portion 52 by ultrasonic vibration. When resistance welding is performed, the core wire portion 31 is connected to the wire connection portion 52 by passing a current between the electrodes while sandwiching and pressing the core wire portion 31 and the wire connection portion 52 with a pair of electrodes of the resistance welding apparatus. Heat-weld to and connect.

  At this time, since the electric wire connection part 52 has a pair of side walls 54, since the strand which comprises the core wire part 31 does not vary by the pressurization by a chip | tip or an electrode, a strand protrudes into the adjacent terminal 5, and is connected. The connection of the core wire portion 31 to the wire connection portion 52 can be reliably performed. Moreover, since the recessed part 55 is provided in the surface of the electric wire connection part 52, the fixing force of the core wire part 31 and the electric wire connection part 52 can be enlarged.

  Then, the presser member 9 is attached to the electric wire support portion 7, but when the presser member 9 is not divided into two, the plurality of electric wires 3 are respectively pressed before the elastic member 8 is attached to the electric wire 3. The presser member 9 is temporarily mounted in a position where it does not interfere with the electric wire 3 in advance (sixth step). When the presser member 9 is divided into two parts and can be opened and closed, the presser member 9 may be temporarily attached to the outer periphery of the electric wire 3 after the electric wire 3 is connected to the terminal 5. .

  After the temporarily attached presser member 9 is connected to the terminal 5 of the electric wire 3, the presser member 9 is moved along the electric wire 3 to the electric wire support portion 7, and the presser member 9 is fitted to the outer periphery thereof (seventh step). As a result, the end of the locked portion 16 of the presser member 9 comes into contact with the locking portion 15 of the wire support portion 7 and is elastically deformed to ride on the locking portion 15. When it gets over, the elastic deformation is restored, the locked portion 16 is engaged with the locking portion 15, and the presser member 9 is locked to the wire support portion 7. In this way, the connector 1 as shown in FIGS. 1 and 2 is assembled.

  Moreover, the elastic member 8 in the electric wire support part 7 is pushed in by each pressing part 91, and is pressed by the step part of the electric wire support part 7 formed around the through-hole 6, and compresses and deforms. Thereby, the adhesive force with the electric wire 3 of the elastic member 8 and the adhesive force with the electric wire support part 7 material become large, and can improve the waterproof property requested | required when using it for the electric equipment 2 provided in air | atmosphere. it can. In this case, since the lip 81 is formed on the cylindrical inner surface of the elastic member 8 and the lip 8 is formed on the cylindrical outer surface of the elastic member 8, the adhesion force between the elastic member 8 and the electric wire 3 and The adhesion with the wire support member 7 can be further increased, and the waterproofness can be further improved.

  Moreover, after the electric wire 3 is taken in and out and the position of the tip of the electric wire 3 is adjusted, before the electric wire 3 is connected to the terminal 5 by welding or the like, the elastic member 8 is pushed into the electric wire support portion 7 by the holding member 9. The electric wire 3 may move together with the elastic member 8 and the position of the tip of the electric wire 3 may be displaced. In this respect, if the elastic member 8 is pushed into the electric wire support portion 7 by the pressing member 9 after the electric wire 3 is connected to the terminal 5 by welding or the like, the positional shift can be prevented, and the assembling work becomes easy.

  On the contrary, if the elastic member 8 is pushed into the electric wire support portion 7 by the holding portion 91 and then the electric wire 3 is taken in and out to be aligned, the elastic member 8 is compressed and deformed, and the frictional force against the electric wire 3 is increased. 3 is difficult to put in and out. In this respect, after the elastic member 8 is pushed in by the holding portion 91 after being connected to the terminal 5 by welding or the like, the position of the electric wire 3 is not shifted.

  Next, when attaching the connector 1 of the present embodiment to the electric device 2, the packing 17 is attached to the outer periphery of the convex portion 44 of the terminal block 4. The terminal 5 is inserted into the insertion hole 24 of the connector mounting portion 22 of the electrical device 2, the convex portion 44 of the terminal block 4 is fitted into the insertion hole 24 of the connector mounting portion 22 of the electrical device 2, and the mounting surface of the terminal block 4 is 42 is brought into contact with the connector mounting portion 22. Thereby, since the plurality of holes 43 of the terminal block 4 are respectively aligned with the plurality of screw holes 23 of the connector mounting portion 22, the screw holes 23 are respectively screwed into the plurality of holes 43 and tightened. The terminal block 4 is fixed to the connector mounting portion 22.

  At this time, even if the upper and lower sides of the terminal block 4 are mistakenly reversed and the convex portion 44 of the terminal block 4 is fitted into the insertion hole 24 of the connector mounting portion 22, the vertical positions of the convex portion 44 and the insertion hole 24 remain. Since the terminal block 4 is formed at a position slightly above the vertical center of the mounting surface 42 of the terminal block 4 and the connector mounting portion 22 of the electrical equipment 2, the terminal block 4 protrudes upward with respect to the connector mounting portion 22. It turns out that the reverse is true, and it cannot be screwed. Thereby, it can prevent attaching up and down accidentally at the time of attachment of connector 1. FIG.

  Then, by screwing screw members (for example, bolts 18) through the mounting holes 51 of the respective terminals 5 and screwing them into the screw holes of the terminal block (see FIG. 8), each terminal 5 is firmly and securely attached to the terminal block. The plurality of electric wires 3 are respectively connected to the terminal block. At this time, since the terminal 5 is fixed to the terminal block 4, the terminal 5 is naturally positioned at the position of the terminal block in the electric device 2 simply by fixing the terminal block 4 to the connector mounting portion 22 of the electric device 2. Therefore, the workability when the connector 1 is attached to the electric device 2 is improved.

  Further, since the tip of the electric wire 3 is aligned with the position where it does not interfere with the screw member, when the screw member is inserted into the mounting hole 51 of the terminal 5 and the terminal 5 is fixed, the screw member does not interfere with the electric wire 3. The terminal 5 can be securely fixed. Furthermore, since the gap between the connector 1 and the connector mounting portion 22 of the electric device 2 is sealed by the packing 17 and the gap between the connector 1 and the electric wire 3 is sealed by the elastic member 8, the electric wire 3 is waterproofed to the electric device 2. Can be connected in a state of securing. Therefore, the waterproof connector 1 for connecting the plurality of electric wires 3 to the electric device 2 can be realized by a simple assembly operation.

  In addition, although this embodiment demonstrated the connector which connects the three electric wires 3 to the electric equipment 2, it is not limited to this, The connector which connects one electric wire, two electric wires, or four or more electric wires It can also be applied to. Moreover, although the elastic member 8 in the some electric wire support part 7 was pushed in by one press member 9, it attaches a press member individually for every electric wire support part, and pushes in each elastic member with an individual press member. You may do it.

DESCRIPTION OF SYMBOLS 1 Connector 2 Electric equipment 3 Electric wire 4 Terminal block 5 Terminal 6 Through-hole 7 Electric wire support part 8 Elastic member 9 Pressing member 15 Locking part 16 Locked part 21 Instrument wall 32 Insulation coating 43 Hole 51 Mounting hole 52 Electric wire connection part 91 Presser part 94 hole

Claims (4)

  A terminal having a mounting hole and a wire connecting portion fixed by a screw member to a terminal block in an electric device to be connected, and an electric wire connected to the wire connecting portion by fixing an end of the terminal on the wire connecting portion side A terminal block in which a through-hole is inserted, and an electric wire connected to the electric wire connecting portion by being inserted into the through-hole from the opposite side of the terminal after removing the insulating coating at the tip, A connector having a plurality of holes fixed by screw members to a connector mounting portion having an opening formed in a container wall facing a terminal block in an electrical device to which the terminal is connected. The terminal block is formed with a cylindrical wire support portion protruding around the through hole on the side where the wire is inserted,
A cylindrical elastic member having an inner diameter smaller than the electric wire into which the electric wire is inserted, and an outer diameter larger than the electric wire support inserted into the electric wire support,
A pressing member having a pressing portion into which the electric wire is inserted and pressing the elastic member into the electric wire support portion; and a locked portion locked to a locking portion formed on an outer surface of the electric wire support portion. The connector according to claim 1. A through hole into which an electric wire connected to the electric wire connecting portion of the terminal is inserted by fixing the end of the electric wire connecting portion side of the terminal having the attaching hole and electric wire connecting portion fixed to the electric device to be connected. And a first step of preparing a terminal block formed with a cylindrical wire support portion protruding around the through hole on the opposite side of the terminal;
A second step of attaching a cylindrical elastic member having an inner diameter smaller than the outer diameter of the electric wire and having an outer diameter larger than the inner diameter of the wire support portion of the terminal block to the electric wire from which the insulating coating at the tip is removed. When,
A third step of inserting the tip of the electric wire into the through hole of the terminal block from the opposite side of the terminal, and inserting the elastic member into the electric wire support portion 7 of the terminal block;
A fourth step of adjusting the wire in and out at a position where the tip of the wire does not interfere with the screw member inserted into the mounting hole of the terminal;
And a fifth step of connecting the tip of the electric wire to the electric wire connecting portion of the terminal by welding. Further, before the second step, a pressing portion for pressing the elastic member inserted into the wire support portion into the wire support portion, a hole through which the wire is inserted, and an outer surface of the wire support portion are formed. A sixth step of attaching a presser member having a locked portion to be locked to the locking portion to the electric wire;
After the fifth step, there is provided a seventh step of pressing the elastic member into the electric wire support portion with the pressing member and locking the locked portion to the locking portion of the electric wire support portion. The connector assembling method according to claim 3.

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