JP3940374B2 - Connector manufacturing method using chained terminals and chained terminals used in the manufacturing method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  INDUSTRIAL APPLICABILITY The present invention is used in a method for manufacturing a connector using chained terminals connected to a wire harness (electric wire) for automobiles and a method for manufacturing the same.Chain terminalIt is about.
[0002]
[Prior art]
  To connect the pressure contact terminal to the wire, place the wire on the pressure contact portion with the Y-shaped slot of the pressure contact terminal while the pressure contact terminal is housed in the connector housing, and push the push die of the wire pressure contact device from above. While pressing down, press fit into the Y-shaped slot. The pressure contact portion includes a pair of pressure contact pieces, a tapered pressure contact blade is formed at the inner edge on the front end side of the pair of pressure contact pieces, and opposed clamping portions are formed at the base side inner edge of the pair of pressure contact pieces Has been.
[0003]
  The press-fitted electric wire is torn off the covering portion by the press contact blades on both sides to expose the core portion as the conductor portion. The electric wire pushed into the back side of the Y-shaped slot has the core wire portion held between the holding portions so that the electric wire and the press contact terminal are electrically connected.
[0004]
  In the connector housing, a plurality of terminal accommodating chambers are formed at an equal pitch. In such a multi-pole connector, since one press contact terminal is accommodated in each terminal accommodating chamber, there is one problem that the assembly property of the press contact terminal to the connector housing is poor. Accordingly, as an example of improving the assembling property of the press contact terminal, an invention relating to a connector including a chain terminal previously proposed by the applicant of the present application has been disclosed (for example, see Patent Document 1).
[0005]
  As shown in FIG. 7, the connector 40 includes a connector housing 41 made of synthetic resin and a metal chain terminal 45. The connector housing 41 has a box shape, and a terminal accommodating chamber 42 that collectively accommodates the electrical contact portions 46 of the chained terminals 45 is formed inside.
[0006]
  The chain terminal 45 is obtained by punching a conductive metal plate made of copper or a copper alloy such as beryllium-copper, and the individual contact terminals 49 are connected in a horizontal row by a metal connection (not shown). To be molded. Subsequently, a resin tether 47 is formed on the chain terminal 45 at the center side of the main body 48 by outsert molding.
[0007]
  The resin tether 47 is for holding the chain terminals 45 in the connector housing 41. In order to increase the holding force of the individual press contact terminals 49 and the pitch dimensional accuracy of the adjacent individual press contact terminals 49, the PBT ( Molded from engineering plastics such as polybutylene terephthalate). When the resin binder 47 is formed, the metal binder is cut.
[0008]
  By cutting the resin tether 47 for each desired number of poles, the chained terminals 45 are divided into a plurality of blocks, and each block is set in a molding die for the connector housing 41 in a state where the blocks are stacked in two stages. Then, the connector housing 41 integrated with the chain terminal 45 is formed.
[0009]
[Patent Document 1]
          Japanese Patent Laid-Open No. 11-31572 (page 3-4, FIG. 1)
[0010]
[Problems to be solved by the invention]
  However, the connector 40 including the conventional chained terminal 45 has the following problems to be solved.
[0011]
  Since each press contact terminal 49 is connected and formed in a horizontal row by the resin tether 47, a plurality of press contact terminals 49 can be reliably and simultaneously inserted into the connector housing 41, and the assembling property of the press contact terminals 49 is improved. It is something that can be done. However, since the press contact terminal 40 connected by the resin tether 47 is set in a molding die for the connector housing 41 and is molded again into the connector housing 41 through a molding process, the assembly is improved. There was a need for further improvements.
[0012]
  Further, since the resin tether 47 is formed on the center side of the main body portion 48 of the press contact terminal 49, the press contact portion 50 side including the pair of press contact pieces 51, 51 becomes a free end, and the press contact terminal 49 is connected to the connector housing. 41, the pair of press contact pieces 51, 51 protrudes to the outside of the connector housing 41. Therefore, the press contact piece 51 interferes with the outside and deforms, or a Y-shaped slot. There is a concern that 52 will open. When the Y-shaped slot 52 is opened, an unillustrated electric wire is not held between the press contact portions 50, and the electric wire is pulled out of the Y-shaped slot 52, or the electric wire and the press contact terminal 49 are not conducted.
[0013]
  Further, the assembly process of the connector 40 includes a process of cutting the metal joint formed in the punching process of the chained terminals 45 by a cutting device, so that the assembly process of the connector 40 is multi-processed. There is also a problem that the productivity of the system becomes low and the production cost becomes high.
[0014]
  In view of the above points, the present invention can easily assemble a terminal to a connector housing, prevent deformation of a pressure contact portion (connection portion) and opening of a Y-shaped slot, and can be chained from the terminal. A connector manufacturing method using a chain-like terminal capable of easily separating a band and used in the manufacturing methodChain terminalThe purpose is to provide.
[0015]
[Means for Solving the Problems]
  In order to achieve the above object, the invention according to claim 1 is characterized in that a plurality of terminals having an electrical contact portion connected to a mating terminal on one side and a connection portion connected to an electric wire on the other side are connected in parallel in a chain band. A connector manufacturing method using a chain terminal which is integrally formed as a chain terminal connected to each other, and after the chain terminal is inserted into a connector housing, the connection portion and the chain band are separated from each other. The housing is accommodated in parallel with a plurality of stages of the chained terminals, and the chain bands of the chained terminals are arranged so that the band widths of the chain bands on the front side in the bending direction are sequentially increased.With a stepIt is made to protrude.
[0016]
  According to the above configuration, by inserting the integrally formed chain-like terminals into the connector housing, a plurality of terminals are assembled at the same time, and the assembling workability is improved. Since the chain band is separated after the terminals are assembled, the connecting portion is protected from unexpected external force, and deformation is prevented.
[0017]
  A plurality of chain terminals are arranged in the thickness direction of the chain band, and the chain band of each chain terminal is arranged so that the band width of the chain band on the front side in the bending direction is sequentially increased.With a stepBy projecting, a plurality of chain strips are stepped, and an allowance for a finger, a jig or the like to be hooked on the chain strips is secured.
[0018]
  The invention according to claim 2 is a chained terminal formed by connecting a plurality of terminals having an electrical contact portion connected to a mating terminal on one side and a connection portion connected to an electric wire on the other side in a chain band. A connector that separates the connecting portion and the chain band after being integrally formed and inserting the chain terminal into the connector housing.Made ofUsed for manufacturing methodChain terminalBecauseThe chain terminal accommodated in the connector housing in a plurality of stages in parallel isThe connection band is connected and fixed to the distal end side of the connection portion.,eachThe chain band of the chain-like terminal is so formed that the band width of the chain band on the front side in the bending direction becomes longer sequentially.With a stepProtrudingIs a thingIt is characterized by that.
[0019]
  According to the above configuration, the plurality of terminals are aligned in a certain direction, and are arranged so that the pitch between adjacent terminals is a constant pitch, and the plurality of terminals are simultaneously inserted into the connector housing. An operator in the process of assembling to the housing does not need to insert the terminals into the connector housing one by one, so there is no worry of forgetting to insert the terminals, and the terminals can be reliably assembled.
[0020]
  Even in a state where the terminal is held by the connector housing, the connecting portion protruding to the outside of the connector housing is connected by the chain band, so that the connecting portion is prevented from being deformed by an unexpected external force. The chain band is separated after inserting the terminal into the connector housing, and then the electric wire is press-fitted into the connecting portion and fixed.
[0021]
  The aboveIn the chain terminal, the connecting portionInA pair of opposing pressure contact pieces forming a Y-shaped slotProvidedThe chainTheConnected to the tip of the pair of pressure contact piecesIf you doThe pair of press contact pieces are not deformed, and the opening of the Y-shaped slot is prevented from being opened, and the wire press contact force by the pair of press contact pieces is maintained.
[0022]
  Also,in frontA constricted part for separating the chain band at the connecting part of the chain band and the connecting partIf you do this,By bending the constricted portion, the chain band and the connecting portion are easily separated by one or several times of bending, and the connecting portion is prevented from being deformed when bent. After bending, the flash does not occur and the electric wire is not caught by the flash and damaged.
[0023]
  Also,SaidIn the chain terminal, at least one of the plurality of terminals includes a joint terminal portion.TheFormationIf you do this,A branch circuit is formed in the connector, so-called joint absorption is performed, and the circuit structure of the electrical junction box to which the connector is attached is simplified.
[0024]
DETAILED DESCRIPTION OF THE INVENTION
  Specific examples of embodiments of the present invention are as follows:1 to 7This will be described in detail with reference to the drawings.
  1 to 6 show a first embodiment of a chain terminal and a connector manufacturing method using the chain terminal according to the present invention.
[0025]
  As shown in FIG. 1, a connector block (connector) 10 includes a connector housing 12 made of synthetic resin, a press contact terminal (terminal) 22 inserted into the connector housing 12, and a flat wire (not shown) connected to the press contact terminal 22. It consists of a harness (electric wire). The connector block 10 is larger than a normal connector, and a plurality of external connectors (not shown) are fitted in the front-rear direction X. The press contact terminal 22 is one in which the chain band 21 is separated (separated) from the chain terminal 20 (FIG. 4).
[0026]
  This connector block 10 is mounted on a box body of an electrical connection box (not shown), receives a power supply current from a battery (not shown), a wiring board (not shown) forming a branch circuit, It is an assembly part which constitutes an internal circuit for relay together with an ECU (not shown) forming a control circuit.
[0027]
  The connector housing 12 has a box shape and includes an upper wall 12a and a lower wall 12b, side walls 12c (only one side is shown) on both sides, and a rear wall 12d as a back wall. A front wall (not shown) facing the rear wall 12d is open. A connector fitting space (not shown) is formed inside the connector housing 12, and an external connector (not shown) is fitted from the opening in the front wall.
[0028]
  The external connector of the present embodiment is a male connector in which female terminals are accommodated. However, the present invention does not limit the external connector to a male connector, and depending on the structure of the connector block 12, Sometimes it becomes.
[0029]
  A male connector as an external connector is fitted into the connector housing 12 so that an external current is supplied to the electrical connection box.
[0030]
  Here, for convenience of explanation in the present specification, the front-rear direction X, the up-down direction Z, and the left-right direction Y are determined as follows. The front-rear direction X is defined as the direction in which the press contact terminal 22 is inserted into the connector housing 12, the front side is defined as the side where the external connector is fitted, and the rear side is defined as the side where the press contact terminal 22 is located. The vertical direction Z is defined as the direction in which the pressure contact portion (connection portion) 24 of the pressure contact terminal 22 extends, the upper side is defined as the distal end side of the pressure contact portion 24, and the lower side is defined as the base side of the pressure contact portion 24. The left-right direction Y is a direction orthogonal to the front-rear direction X and the up-down direction Z, and is the longitudinal direction of the connector housing 12.
[0031]
  As shown in FIG. 2, a terminal mounting portion 13 and a terminal insertion hole 17 for the press contact terminal 22 are formed on the rear wall 12 d of the connector housing 12 in the vertical direction. The terminal mounting portion 13 is a rectangular cylindrical body, protrudes from the wall surface, and a plurality of terminal accommodating chambers 14 partitioned by a partition wall 15 at an equal pitch are formed inside. The terminal insertion hole 17 is a hole penetratingly formed in the rear wall 12d, and is formed at the intersection of the upper wall 13a of the terminal mounting portion 13 and the rear wall 12d. The terminal accommodating chamber 14 and the terminal insertion hole 17 are formed in a dimension corresponding to the electrical contact portion 23 (FIG. 6) of the press contact terminal 22 and are formed in a slot shape.
[0032]
  In the terminal insertion hole 17 located on the upper side, a short electrical contact part 23 of the bent contact terminal 22 is inserted, and in the terminal receiving chamber 14 located on the lower side, the bent contact terminal is also formed. 22 long-legged electrical contacts 23 are inserted. Thus, by changing the length of the leg of the electrical contact portion 23, interference between the upper and lower press contact terminals 22 is prevented (FIG. 1 and the like). In addition, the upper and lower press contact terminals 22 are formed to have different lengths of the press contact portion 24 so that interference between upper and lower flat wire harnesses (not shown) is prevented.
[0033]
  As shown in FIG. 3, the press contact terminal 22 inserted into the terminal insertion hole 17 has the electrical contact portion 23 (FIG. 6) once placed on the upper wall 13 a of the terminal mounting portion 13 and pushed forward to insert the terminal. It is inserted into the hole 17. The press contact terminal 22 attached to the terminal accommodating chamber 14 is temporarily placed on the extension wall 13 c of the lower wall 13 b of the terminal attaching portion 13, pushed forward, and inserted into the terminal accommodating chamber 14.
[0034]
  An engagement portion (not shown) that engages with the inserted electrical contact portion 23 is provided on the inner wall of the terminal insertion hole 17 and the terminal accommodating chamber 14, and the electrical contact portion 23 is engaged with the engagement portion. An engagement portion (not shown) is provided, and the engagement portion and the engagement portion engage with each other, whereby the press contact terminal 22 is engaged with the terminal insertion hole 17 and the terminal accommodating chamber 14, and the press contact terminal 22 is It is designed not to come out. In addition, the press contact terminal 22 can be locked by forcibly fitting (press fit) the press contact terminal 22 into the terminal insertion hole 17 and the terminal accommodating chamber 14.
[0035]
  The upper wall 13a of the terminal mounting portion 13 and the extension wall 13c of the terminal mounting portion 13 also function as a support wall that receives pressure input when connecting the flat wire harness to the press contact portion 24 of the press contact terminal 22. By functioning as a support wall, the contact of the press contact terminal 22 is improved, and the press contact terminal 22 is stably held in the connector housing 12.
[0036]
  Next, the press contact terminal 22 will be described. The press contact terminal 22 is formed by punching a conductive metal substrate and bending it. As shown in FIG. 6, one of the press contact terminals 22 has an electrical contact portion 23 connected to the mating terminal, and the other has a press contact portion 24 connected to the flat wire harness.
[0037]
  The electrical contact portion 23 and the pressure contact portion 24 are bent at a right angle or a substantially right angle. Each of the press contact terminals 22 is formed by separating the chain band 21 (FIG. 5) from the chain terminal 20, but at the time of punching, a plurality of press contact terminals 22 are formed in a state of being connected in parallel by the chain band 21. Has been. The chain 21 is connected to the distal end side of the press contact portion 24, and after the press contact terminal 22 is attached to the connector housing 12, it is cut off before the flat wire harness is crimped to the press contact portion 24 (FIG. 4).
[0038]
  The electrical contact portion 23 is formed in a tab shape extending straight in the horizontal direction. The electrical contact portion 23 and the bent portion 23a are formed with a narrow width. The pressure contact portion 24 that is coupled to the bending portion 23a and extends in the vertical direction is formed wide. The length L1 in the horizontal direction and the length L2 in the vertical direction of the press contact terminal 22 are formed to have different dimensions between the press contact terminal 22 inserted into the terminal insertion hole 17 and the press contact terminal 22 inserted into the terminal accommodating chamber 14. Has been.
[0039]
  The press contact terminal 22 inserted into the terminal insertion hole 17 is formed with a short horizontal length L1 and a long vertical length L2. The press contact terminal 22 inserted into the terminal accommodating chamber 14 is formed such that the horizontal length L1 is long and the vertical length L2 is short. Therefore, the upper and lower press contact terminals 22 are prevented from interfering with each other, and the flat wire harnesses connected to the press contact portion 24 of the press contact terminal 22 are also prevented from interfering with each other.
[0040]
  The electrical contact portion 23 is a so-called male terminal and is connected to the female terminal of the external connector. The electrical contact portion 23 is not limited to a tab shape, but may be a pin shape or the like, but the tab contact shape has an effect of improving the stability of the sitting of the press contact terminal 22.
[0041]
  Some pressure contact terminals 22 are formed with joint terminal portions 27. By forming the joint terminal portion 27, a branch circuit is formed in the connector block 10, so-called joint absorption is performed, the circuit structure of the electrical junction box to which the connector block 10 is attached is simplified, and the electrical junction box Cost reduction is achieved.
[0042]
  The pressure contact portion 24 is the same as the pressure contact portion 50 of the chain terminal 45 shown in the section of the prior art, and includes a pair of pressure contact pieces 25, 25 that form a Y-shaped slot 30. A tapered press contact blade 25a is formed on the inner end edge of the pair of press contact pieces 25, 25, and a sandwiching portion 25b following the press contact blade 25a is opposed to the base side inner edge of the pair of press contact pieces 25, 25. Is formed.
[0043]
  As shown in FIG. 5, the chain band 21 that connects the plurality of press contact terminals 22 is connected to the tips of the pair of press contact pieces 25, 25 via a constricted portion 21 c. Since the chain band 21 is continuous so as to close the opening of the Y-shaped slot 30, the pair of press contact pieces 25, 25 interfere with the outside and deform due to unexpected external force, The opening is prevented from being opened, and the wire pressure contact force by the pair of pressure contact pieces 25 is maintained. The band width of the chain band 22 of each chain terminal 22TheA second embodiment in which the bendability is improved by differentiating will be described later.
[0044]
  The constricted portion 21 c is a narrow and narrow portion formed at the connecting portion between the chain band 21 and the pressure contact pieces 25, 25. The chain band 21 is provided with two legs 21b, 21b for each pressure contact terminal 22, and the two legs 21b, 21b and a pair of pressure contact pieces 25, 25 are connected via a constricted portion 21c. Each is connected. Since the constricted portion 21c is provided, the chain strip 21 can be easily separated by bending once or several times (FIG. 4), and a special cutting device is not required. Further, the workability of connecting the flat wire harness to the press contact terminal 22 is improved, and as a result, the workability of assembling the connector block 10 is improved.
[0045]
  Further, when the chain 21 is bent, the pressure contact pieces 25, 25 are not bent at the same time, and the Y-shaped slot 30 formed between the pair of pressure contact pieces 25, 25 is not deformed. The flat wire harness is securely held between the press contact portions 24.
[0046]
  A flat wire harness (not shown) is formed by arranging core portions as conductors at a predetermined pitch and covering the outside with a covering material as an insulator. A pressure contact terminal 22 is connected to the terminal portion.
[0047]
  A known conductor material is used for the constituent material of the core wire portion. For example, an annealed copper wire, tin-plated copper wire, nickel-plated copper wire or the like is used. The covering material is made of a thermoplastic resin material having a low melting point (110 ° C. to 200 ° C.). Various types of thermoplastic resin materials are known, and are appropriately selected from polymer materials such as polyvinyl chloride resin, polyethylene resin, and polypropylene resin. Depending on the type of the resin material, a plastic material added (polyvinyl chloride resin) or a crosslinked material (polyvinyl chloride resin, polyethylene resin) is used.
[0048]
  The constituent materials of the core wire portion and the covering material are selected in consideration of the usage application and usage conditions of the flat wire harness, and are not particularly limited. Further, the size of the flat wire harness, the covering thickness of the covering material, and the like are not limited and can be arbitrarily selected.
[0049]
  When connecting the flat wire harness to the press contact terminal 22, for example, the ends of a plurality of core wire portions are cut and separated one by one, and each separated electric wire is disposed on the Y-shaped slot 30 of the press contact terminal 22, A push die of a wire pressure welding device (not shown) is pushed in from above, and is pressed into the Y-shaped slot 30 while pushing down each wire.
[0050]
  Each of the press-fitted electric wires was cut off by the press contact blades 25a and 25a (FIG. 6) on both sides to expose the core portion as a conductor, and then pushed into the back side of the Y-shaped slot 30. As for each electric wire, a core part is pinched | interposed by the clamping part 25b, and each electric wire and the press-contact terminal 22 are conduct | electrically_connected.
[0051]
  Note that the electric wire connected to the press contact terminal 22 is not limited to a flat wire harness in which a plurality of core wire portions are arranged. Therefore, it may be a covered electric wire having a normal circular cross section, and the electric wire can be arbitrarily selected.
[0052]
  As described above, according to the first embodiment, since the chain band 21 is connected to the distal end side of the pair of press contact pieces 25, 25, the plurality of press contact terminals 22 are connected in a horizontal row. The connector housing 12 is inserted into the terminal accommodating chamber 14 and the terminal accommodating hole 17. As a result, the plurality of press contact terminals 22 are simultaneously inserted, and the assembly time of the press contact terminals 22 with respect to the connector housing 12 is greatly reduced. Even after the plurality of press contact terminals 22 are inserted into the connector housing 12, the pair of press contact pieces 25, 25 are connected by the chain band 21, thereby preventing the pair of press contact pieces 25, 25 from opening. The flat wire harness is securely held between the press contact portions 24. The press contact terminal 22 and the chain strip 21 are easily separated from the constricted portion 21c by one or several times of bending, and the press contact portion 24 is not deformed when bent, and the separation workability of the chain strip 21 is improved. Remarkably improved.
[0053]
  Next, the connector manufacturing method and the manufacturing method according to the present invention are used.Chain terminalThe second embodiment will be described. Constituent parts common to the present embodiment and the first embodiment are denoted by the same reference numerals and description thereof is omitted.
  The connector housing 33 is formed with terminal receiving holes 34a and 34b arranged in two rows (two stages) in the wall portions of the upper step 33a and the lower step 33b, and each terminal receiving hole 34a and 34b has a chain shape. Terminals 36 and 37 are respectively press-fitted. The chain terminals 36 and 37 have an electrical contact portion (not shown) for connecting to the mating terminal on one side, and an electric wire (not shown) on the other side, similarly to the chain terminal 20 of the first embodiment. ) And a press-contact portion 24 connected to. Chain bands 36a, 36b, 37a, and 37b are connected to the pressure contact portion 24 via the constricted portion 21c, and the chain bands 36a, 36b, 37a, and 37b are bent, so that the chain bands 36a, 36a, 36b, 37a, 37b can be separated.
[0054]
  The electrical contact portion is formed so that the chained terminal 37 of the lower stage 33b is longer than the chained terminal 36 of the upper stage 33a, but the tips of the electrical contact parts of the chained terminals 36 and 37 are aligned. The press contact portions 24 of the chain terminals 36 and 37 have the same configuration.
[0055]
  The chained terminals 36 and 37 of this embodiment are different from the chained terminals 20 of the first embodiment in that the upper width 33a and the lower width 33b of the connector housing 33 have a band width a1 of the upper chain bands 36a and 37a. , A2 are formed wider than the band widths b1, b2 of the lower chain bands 36b, 37b, and the upper chain bands 36a, 37a are projected in the band width direction. That is, the upper chain bands 36a and 37a protrude in the band width direction by the amount of the wider band widths a1 and a2 of the upper chain bands 36a and 37a. When the chain-like terminals are accommodated in three or more rows (three or more stages) in the thickness direction of the chain band, the band width of the chain band is increased in order from the lower side to the upper side, and the protruding length is increased. To do.
[0056]
  According to the second embodiment, a plurality of chain strips 36a, 36b, 37a, 37b are stepped, and a margin for hanging fingers, jigs, etc. on the chain strips 36a, 36b, 37a, 37b is secured, The upper chain bands 36a and 37a can be bent upward without causing fingers or jigs to interfere with the lower chain bands 36b and 37b, and the upper chain bands 36a and 37a can be easily bent from the press contact portion 24. Can be separated.
[0057]
  The same configuration as that of the chained terminals 36 and 37 of the present embodiment can be applied to the chained terminal 20 of the first embodiment. Also in this case, the chain band 21 of the upper chain terminal 20 accommodated in the terminal accommodating hole 17 is formed wide and the chain band 21 of the lower chain terminal 20 accommodated in the terminal accommodating chamber 14 is narrowed. By forming, the chain band 21 can be easily separated from the press contact portion 24.
[0058]
  The technical ideas other than the claims that can be grasped from the embodiment will be described below together with the effects thereof.
  A plurality of legs 21a, 21a are provided on the chain bands 21, 36a, 36b, 37a, 37b, and the pair of legs 21a, 21a are connected to the pair of press contact pieces 25, 25. According to such a configuration, the chain band 21 is easily separated and workability is improved.
[0059]
【The invention's effect】
  As described above, the connector manufacturing method using the chained terminal according to the present invention and the manufacturing method thereof are used.Chain terminalAccording to the above, a plurality of terminals incorporated in the connector housing are connected by a chain band, the postures of the plurality of terminals are aligned in a fixed direction, and the pitch between adjacent terminals is aligned to be a fixed pitch. A plurality of terminals are simultaneously inserted into the connector housing. Further, even when the terminal is assembled to the connector housing or after assembly, the press contact portion is connected by the chain band, so that the press contact portion is prevented from being deformed, and the flat wire harness is securely held by the press contact portion. Therefore, the time required for assembling the terminals can be shortened, and the assembling workability can be improved. Moreover, the reliability of the electrical connection between the electric wire and the terminal can be improved.
[0060]
  In addition, since a plurality of terminals are inserted into the connector housing at the same time while being connected in a chain band, the time required for assembling the terminals is shortened, and even after the terminals are inserted into the connector housing, Since the chain band is connected, it is possible to prevent deformation such as opening at the connecting portion. Therefore, the assembly workability is improved and the reliability of electrical connection is maintained.
[0061]
  In particular, the chain band of each chain terminal is made so that the band width of the chain band on the front side in the folding direction becomes longer sequentially.With a stepBy projecting, a plurality of chain strips are stepped, and an allowance for a finger, a jig or the like to be hooked on the chain strips is secured. Therefore, the chain band can be easily separated from the terminal.
[Brief description of the drawings]
FIG. 1 relates to the present invention.ReamUsed in a connector manufacturing method using chain terminals and a manufacturing method thereofChain terminalIt is a perspective view which shows 1st Embodiment of this.
FIG. 2 is a perspective view of the connector housing shown in FIG.
FIG. 3 is a perspective view showing a state where chain-like terminals are similarly inserted into the connector housing.
FIG. 4 is a perspective view showing a state where a chain band is separated after inserting a chain terminal into the connector housing.
5 is an enlarged perspective view showing a state where the chain band of the chain terminal shown in FIG. 3 and the press contact terminal are connected to each other. FIG.
6 is an enlarged perspective view of the press contact terminal shown in FIG. 1; FIG.
FIG. 7 shows a connector manufacturing method using chained terminals according to the present invention and a manufacturing method thereof.Chain terminalIt is a partial cross section figure showing a 2nd embodiment.
FIG. 8 is a perspective view showing an example of a connector including a conventional chain terminal.
[Explanation of symbols]
  10 Connector block (connector)
  12 Connector housing
  20, 36, 37 Chain terminal
  21 Chain
  22 Pressure contact terminal
  24 Pressure contact part (connection part)
  25 pressure contact piece
  27 Joint terminal
  30 Y-shaped slot

Claims (2)

A plurality of terminals having an electrical contact portion connected to a counterpart terminal on one side and a connection portion connected to an electric wire on the other side are integrally formed as a chained terminal formed by connecting them in parallel with a chain band, and the chained terminal A connector manufacturing method using a chained terminal for separating the connection portion and the chain band after inserting into the connector housing,
The connector housing accommodates a plurality of stages of the chain terminals in parallel, and the chain bands of the chain terminals are provided with steps so that the band width of the chain bands on the front side in the folding direction is sequentially increased. A method of manufacturing a connector, comprising: A plurality of terminals having an electrical contact portion connected to a counterpart terminal on one side and a connection portion connected to an electric wire on the other side are integrally formed as a chained terminal formed by connecting them in parallel with a chain band, and the chained terminal the after insertion into the connector housing, a chained terminal which is used in the connector Manufacturing method for separating the said connection portion and the chain belt,
The chained terminals accommodated in a plurality of stages in the connector housing are such that the connection band is connected and fixed to the distal end side of the connecting portion, and the chain band of each chain terminal is connected to the front side in the folding direction. chained terminal, wherein the band width of the chain band is obtained by projecting provided with a step such that successively longer.

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