JP2004087709A - Method for forming terminal fixing part to substrate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for forming a terminal fixing part for a substrate, which can surely bring each terminal into contact with each terminal connecting pattern even when a pitch interval is narrow and which can form the terminal fixing part without fault. <P>SOLUTION: The method for forming the terminal fixing part to the substrate includes the steps of housing a flexible substrate (substrate) 10 and a terminal 20 brought into contact with the terminal connecting pattern provided in parallel with the substrate 10 in molds (first and second molds) A1, A2 for molding the terminal fixing part, injecting a molten resin in cavities C1, C2 provided on the peripheries of the contact of the terminal 20 with the substrate 10 to mold the terminal fixing part 30. When the substrate 10 and the terminal 20 are housed in the molds A1, A2, a distal end of the terminal 20 and the substrate 10 are sandwiched from both sides between pressing parts 80, 100 provided at the molds A1, A2. The terminal 20 is positioned by a first positioning part 89 provided at an outer part of the cavity C1 of the mold A1. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for forming a terminal fixing portion on a board suitable for use in contacting a terminal such as a metal terminal with a terminal connecting pattern of a substrate such as a flexible substrate and fixing the periphery thereof with a resin terminal fixing portion. Things.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, terminals made of a metal plate are attached to a flexible substrate. FIG. 12 is a view showing an example of this type of terminal connection portion 300, FIG. 12 (a) is a perspective view seen from above, FIG. 12 (b) is a perspective view seen from below, and FIG. FIG. 14 is a sectional view taken along line aa of FIG. As shown in these figures, the flexible substrate 310 and the terminal 320 are configured by covering the periphery of the contact portion between them with the terminal fixing portion 330. Here, FIGS. 15, 16 and 17 are views showing a method of fixing the flexible substrate 310 and the terminal 320 by the terminal fixing portion 330. FIG. FIG. 17 is a sectional view of the same portion as FIG. In order to fix the flexible substrate 310 and the terminal 320 by the terminal fixing part 330, first, as shown in FIG. A plurality of metal plate terminals 320 arranged at the same pitch as 311 and connected by the connecting portion 315 are prepared. Next, as shown in FIG. 16, one end of each terminal 320 is brought into contact with each terminal connection pattern 311 of the flexible substrate 310. Next, as shown in FIG. 17, the upper and lower portions of the contact portion between the flexible substrate 310 and the terminal 320 are sandwiched between the first and second molds a1 and a2, and are formed by the first and second molds a1 and a2. The cavities c1 and c2 are filled with molten mold resin from the pin gate p. If the first and second molds a1 and a2 are removed after the molding resin has solidified, the terminal connection portion 300 where the flexible substrate 310 and the terminal 320 are fixed by the terminal fixing portion 330 as shown in FIGS. Is configured. Finally, the connecting portion 315 is cut off at the line ee shown in FIG.
[0003]
By the way, when the portion where the flexible substrate 310 and the terminal 320 are bonded is sandwiched between the first and second molds a1 and a2, as shown in FIG. , Are held by pressing portions 380 and 400 provided on the first and second molds a1 and a2, respectively. This is for firmly pressing the joint between the terminal 320 and the flexible substrate 310 so that the molding resin during molding does not enter between the joint between the terminal 320 and the flexible substrate 310. The lower surface (pressing surface) of the pressing portion 380 which abuts on the tip of the terminal 320 and presses the same is pressed in the width direction of the flexible substrate 310 (see FIG. 17) so as to simultaneously press the entire tip of the plurality of terminals 320 arranged in parallel. It is provided in a flat shape and long in the front and rear direction of the drawing).
[0004]
However, when the pitch between the terminal connection patterns 311 and the pitch between the terminals 320 that come into contact with the terminal connection patterns 311 become narrow due to the miniaturization of the terminal fixing portion 330, the terminals 320 come into contact with the terminal connection patterns 311 and become first and second. When the terminals 320 are slightly bent at the time of being housed in the second molds a1 and a2, the terminals 320 come into contact with the adjacent terminal connection patterns 311 and may be defective. Also, even if each terminal 320 is in contact with each of the terminal connection patterns 311 that accurately face each other in the first and second molds a1 and a2, the terminal 320 can be injected with molten resin only by the holding force of the pressing portions 380 and 400. It could be moved by pressure, causing the same problem. These problems are exacerbated as the pitch becomes narrower.
[0005]
[Problems to be solved by the invention]
The present invention has been made in view of the above points, and its object is to make it possible to securely contact each terminal with each terminal connection pattern even if the pitch interval is small, and to provide a terminal fixing portion without defective products. An object of the present invention is to provide a method for forming a terminal fixing portion on a substrate that can be formed.
[0006]
[Means for Solving the Problems]
In order to solve the above problems, a method for forming a terminal fixing portion on a substrate according to the present invention comprises: placing a substrate and a terminal abutting on a terminal connection pattern provided in parallel with the substrate in a terminal fixing portion forming die. The terminal fixing portion is formed around the contact portion by injecting a molten resin into the cavity of the terminal fixing portion forming mold provided around the contact portion between the terminal and the terminal connection pattern. In the method for forming a terminal fixing portion on a substrate to be formed, when the substrate and the terminal are housed in the terminal fixing portion forming die, a tip portion of the terminal and the substrate are pressed by a pressing portion provided in the terminal fixing portion forming die. The terminal is sandwiched from both sides thereof, and the terminal is positioned by a first positioning portion provided outside the cavity of the terminal fixing portion molding die.
[0007]
Further, the present invention provides a terminal fixing part forming die, wherein when the substrate and the terminal are accommodated in the terminal fixing part forming die, the terminal of the pressing part of the terminal fixing part forming die is provided by a second positioning part provided in a portion where the terminal abuts. Is characterized in that the tip portion of the is positioned.
[0008]
Further, according to the present invention, a substrate and a terminal abutting on a terminal connection pattern provided in parallel with the substrate are housed in a terminal fixing part molding die, and a periphery of the contact portion between the terminal and the terminal connection pattern is provided. In a method for forming a terminal fixing portion on a substrate, the terminal fixing portion is formed around the abutting portion by injecting a molten resin into a cavity of the terminal fixing portion forming mold provided in the terminal fixing portion. Are provided so as to protrude from two opposing sides of the terminal, while two sets of the substrates are prepared, two sets of cavities are provided in the terminal fixing part molding die, and the tips of the two sets of terminals are connected to each other. The parts of the set of substrates that abut on the respective terminal connection patterns are housed in the terminal fixing part molding die, and are placed in the cavities of the terminal fixing part molding dies provided around these contact parts. By injecting molten resin, the two contact parts Characterized by each molding the terminal fixing portion around.
[0009]
Further, the present invention is characterized in that a bent portion provided at a portion protruding from the terminal fixing portion of the terminal is provided in advance on a flat terminal before the terminal fixing portion is formed.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a view showing a terminal connection portion 1 of a flexible substrate 10 manufactured by terminal fixing portion forming dies (hereinafter, referred to as “first and second dies”) A1 and A2 used in the present invention. 1A is a perspective view as viewed from above, and FIG. 1B is a perspective view as viewed from below. 2 is a plan view thereof, and FIG. 3 is a sectional view taken along line AA of FIG. As shown in these drawings, the terminal connection portion 1 is configured to cover the periphery of the contact portion between the flexible substrate 10 and the terminal 20 with a terminal fixing portion 30 made of resin.
[0011]
Here, FIGS. 4, 5, and 6 are views showing a method of manufacturing the terminal connection portion 1. FIG. In order to manufacture the terminal connection portions 1, first, as shown in FIG. 4, a flexible substrate 10 having a plurality of terminal connection patterns 13 drawn out in parallel at one end side is connected to the flexible substrate 10 at the same pitch as the terminal connection patterns 13. A plurality of metal plate hard terminals 20 connected by the unit 25 are prepared. The flexible substrate 10 has the terminal connection patterns 13 provided at the tip of the circuit pattern 15, and the portion of the circuit pattern 15 is covered with an insulating layer 17. Further, five through holes 19 are provided in a portion between the terminal connection patterns 13 of the flexible substrate 10, and two through holes 21 are provided on both sides thereof. On the other hand, a positioning hole 27 is provided in the connecting portion 25.
[0012]
Then, as shown in FIG. 5, one end of each terminal 20 abuts on each terminal connection pattern 13 of the flexible substrate 10. Next, as shown in FIG. 6, the upper and lower portions of the contact portion between the flexible substrate 10 and the terminal 20 are held between the first and second molds A1 and A2. Then, the cavities C1, C2 formed by the first and second molds A1, A2 are filled and filled with the molten mold resin from the pin gate P, and after the mold resin is solidified, the first and second molds A1, A2. Remove. In order to prevent molding resin from entering between the flexible substrate 10 and the terminal 20, the pressing portions 80 and 100 provided on the first and second molds A1 and A2 respectively correspond to the flexible substrate 10 and the terminal 20. Between the front end of the body.
[0013]
As a result, the terminal connection portion 1 having the structure in which the periphery of the contact portion between the flexible substrate 10 and the terminal 20 is covered with the terminal fixing portion 30 as shown in FIGS. 1 to 3 is completed. Finally, the connecting portion 25 is cut off along the line EE shown in FIG.
[0014]
As shown in FIG. 2, the terminal fixing portion 30 manufactured as described above partitions the contact portion between the terminal connection pattern 13 and the tip of the terminal 20 by the partition portion 31. The partition 31 is provided to prevent migration between the terminal connection patterns 13 exposed in the vicinity of the contact portion between the terminal connection pattern 13 and the distal end of the terminal 20 and to prevent the flexible board 10 from being fixed by the terminal fixing portion 30. This is for reinforcing the fixing strength between the terminals 20. A connecting portion 33 for connecting the partition portions 31 is provided at the tip of the partition portion 31, and a portion partitioned by the connecting portion 33 and each partition portion 31 is a concave portion 35.
[0015]
On the other hand, as shown in FIG. 1B, a partition 41 is also provided at a position facing the partition 31 on the lower surface side of the terminal fixing portion 30, and each partition is provided at a portion slightly inside from the tip of the partition 41. A connecting portion 43 for connecting the portions 41 is provided, whereby a concave portion 45 is formed. The five through holes 19 shown in FIG. 4 are for connecting the molding resin constituting the terminal fixing portion 30 to the upper and lower sides of the flexible substrate 10, and the through holes 21 and 21 shown in FIG. The mounting holes 37 are provided in the terminal fixing portion 30 as shown.
[0016]
Next, the structure of the first and second molds A1 and A2 shown in FIG. 6 will be described in detail. FIG. 7 is an exploded perspective view showing the first mold A1 shown in FIG. 6 with its lower surface facing upward. As shown in the figure, the first mold A1 is configured by joining two mold parts A1-1 and A1-2. One mold part A1-1 is provided with a cavity C1 shown in FIG. 6 on an upper surface thereof, and the pressing parts 80 shown in FIG. 6 are provided in a row in the cavity C1. A concave gap 82 is provided between the pressing parts 80 installed in parallel, and the gap 82 forms the partition part 31 shown in FIG. On the upper surface (terminal contact surface) of each pressing portion 80, a concave step portion 84 on which the tip portion of the terminal 30 is placed is provided.
[0017]
Further, projections 87, 87 for inserting through holes 21, 21 (see FIG. 5) of the flexible substrate 10 are provided on both sides of the pressing portions 80 arranged in a row in the cavity C1, and the projections 87, 87 of the cavity C1 are provided. On the external surface, a first positioning portion 89 formed of a linear groove for positioning a portion on the base side (connection portion 25 side) of each terminal 30 and a positioning hole 27 (see FIG. 5) of the terminal 30 are inserted. Positioning projections 91 are provided.
[0018]
On the other hand, the mold portion A1-2 has a shape to be joined to the side surface of the mold portion A1-1 on the side where the pressing portion 80 is provided, and a concave insertion portion 93 for inserting the flexible substrate 10 is provided on the upper surface thereof. Is provided. In addition, when the mold part A1-2 is joined to the mold part A1-1, the side surface of the pressing part 80 of the mold part A1-1 and the side surface of the mold part A1-2 opposed to the pressing part 80 are the aforementioned. A cavity (gap) C1 '(see FIG. 6) for forming the connecting portion 33 shown in FIG. 1 is formed.
[0019]
Next, FIG. 8 is an exploded perspective view showing the second mold A2 shown in FIG. As shown in the figure, the second mold A2 is configured by joining two mold parts A2-1 and A2-2. One mold part A2-1 is provided with a cavity C2 shown in FIG. 6 on its upper surface, and the pressing part 100 shown in FIG. 6 is provided in a row in the cavity C2. A concave gap 102 is provided between each of the pressing sections 100 installed in parallel, and this gap 102 forms the partition section 41 shown in FIG. A groove 104 is provided on the upper surface of each pressing portion 100 so as to cross in the horizontal direction, and the groove 104 forms the connecting portion 43 shown in FIG.
[0020]
Further, holes 107, 107 for inserting the projections 87, 87 of the first mold A1 shown in FIG. 7 are provided on both sides of the pressing portions 100 arranged in a row in the cavity C2. A positioning hole 109 for inserting the positioning protrusion 91 of the first mold A1 is provided on the outer surface.
[0021]
On the other hand, the mold part A2-2 has a shape to be joined to the side surface of the mold part A2-1 on the side where the pressing part 100 is provided.
[0022]
Then, as shown in FIG. 9, the first mold A1 is formed by joining the mold part A1-1 and the mold part A1-2 shown in FIG. 7, and then, as shown in FIG. The terminal 20 is placed on A1. At this time, the tip portion of each terminal 20 is placed on each step portion 84 (see FIG. 7) provided on the upper surface of the pressing portion 80. Also, at this time, the base side portion of each terminal 20 is inserted into each first positioning portion 89 provided on the first mold A1, so that each terminal 20 is accurately arranged at a fixed position on the first mold A1. Also, when molding the molding resin in the subsequent steps, the position is not bent by the pressure of the molding resin. Further, since the positioning projections 91 are inserted into the positioning holes 27 provided in the connecting portion 25, the entire position of each terminal 20 is accurately positioned.
[0023]
Next, as shown in FIG. 11, the flexible substrate 10 is placed in the insertion portion 93 of the first mold A1 with the terminal connection pattern 13 facing downward. At this time, the projections 87, 87 of the first mold A1 are inserted into the through holes 21, 21 of the flexible substrate 10.
[0024]
Then, as shown in FIG. 11, on the upper surface of the first mold A1, the mold part A2-1 and the mold part A2-2 shown in FIG. At this time, the projection 87 engages with the hole 107, and the positioning projection 91 engages with the positioning hole 109. Thereby, as shown in FIG. 6, the flexible substrate 10 and the terminal 20 are sandwiched by the first and second molds A1 and A2, and the terminal fixing portion 30 is formed by the above-described method.
[0025]
FIG. 18 is an exploded perspective view of a first mold A1 ′ (A1-1 ′, A1-2 ′) having another structure used in the present invention. This first mold A1 'is different from the first mold A1 shown in FIG. 7 in that a step 84 provided on the upper surface of the pressing portion 80 of the mold A1-1 shown in FIG. The point where the second positioning part 83 consisting of a concave groove in which the tip part of the terminal 30 is placed is provided, and each pressing part 80 which presses each terminal 20 is separately and independently provided in a rod shape, and is formed separately and independently. The only difference is that a part obtained by joining and integrating all the pressed parts 80 is incorporated into the mold part A1-1.
[0026]
When the terminals 20 are placed on the first mold A1 ', the tips of the terminals 20 are locked in the second positioning portions 83 as shown in FIG. 19, and at the same time, the first positioning is performed as described above. Since each terminal 20 is positioned outside the cavity C1 by the portion 89, the positioning of each terminal 20 is further ensured, which is preferable.
[0027]
Here, in the first mold A1 ', the pressing portion 80 is separated into a plurality of pressing portions 80 to be independent from each other for the following reason. That is, the gap 82 between the pressing portions 80 becomes considerably narrower as the pitch interval between the terminals 30 becomes smaller. If the plurality of pressing portions 80 are formed by processing one metal lump, the processing becomes extremely difficult. Because it becomes difficult. If each pressing portion 80 is formed by processing one metal lump, even if inconvenience such as breakage occurs only in a part thereof, the whole must be re-created again. This is because it is only necessary to replace one damaged pressing portion 80. For this reason, similarly, as shown in FIG. 20, the pressing portions 100 of the second mold A2 '(A2-1', A2-2 ') also correspond to the respective terminals 20 pressing similarly to the pressing portions 80. The pressing portion 100 formed separately and independently in a bar shape may be joined and integrated into the mold portion A2-1.
[0028]
In this embodiment, the pressing portions 80 and 100 of both the first and second molds A1 and A2 are formed separately and independently of the plurality of pressing portions 80 and 100. However, either one of the molds A1 or A2 is formed. Only the pressing portion 80 or 100 of A2 may be formed separately and independently. In particular, if the pressing portions 80 on the side that comes into contact with the distal end portions of the metal terminals 20 are formed separately and independently of the plurality of pressing portions 80, the second positioning portions 83 that lock the distal end portions of the terminals 20 are formed on these pressing portions 80. Is provided so that the possibility of breakage is large, and it is preferable to consider replacement or the like.
[0029]
FIG. 21 is an explanatory view of a method of manufacturing a terminal connecting portion 1 "according to still another embodiment of the present invention. In this embodiment, the terminals 20", 20 "are connected from opposite sides of the connecting portion 28". Two sets of flexible substrates 10 "and 10" are provided so as to protrude, and two sets of cavities C1 "and C1 are provided in a first mold A1" which forms a terminal fixing part forming mold. The two sets of terminals 20 ", 20", and the ends of which abut on the respective terminal connection patterns provided on the lower surfaces of the two sets of flexible substrates 10 ", 10" are placed in the first mold A1 ". Although not shown, a second mold corresponding to the first mold A1 "is placed on the first mold A1", and the two sets of flexible substrates 10 ", 10" and the terminal 20 "are placed. , 20 "in the first and second molds, and the two sets of Injecting a molten resin into a cavity provided around a contact portion between the kibble substrates 10 ", 10" and the terminals 20 ", 20", and removing the first and second molds after the molten resin is cured. Thus, as shown in FIG. 22, the terminal fixing portions 30 "and 30" are formed on the contact portions between the two sets of flexible substrates 10 "and 10" and the terminals 20 "and 20", respectively. Finally, the terminals 20 "and 20" are cut at the portions indicated by arrows E and E shown in FIG.
[0030]
In the case of the terminal connection portions 1 ", 1" manufactured according to this embodiment, the portions of the terminals 20 ", 20" protruding from the terminal fixing portions 30 ", 30" are connected to one of the terminal fixing portions 30 ", 30". Bending portions 29 "and 29" are provided so as to bend so as to be located substantially on the same plane as the surface. In this embodiment, the bent portions 29 "and 29" provided at portions of the terminals 20 "and 20" protruding from the terminal fixing portions 30 "and 30" are formed before forming the terminal fixing portions 30 "and 30". Are provided in advance in the state of the flat terminals 20 ", 20". When the bent portions 29 "and 29" are provided in the state of the flat terminals 20 "and 20", only the terminal 20 "is bent rather than bent after the terminal 20" is attached to the terminal fixing portion 30 ". This is because the bent portion 29 "can be easily formed by forming the terminal fixing portion 30" on the bent portion at the time of (1). Also, as in this embodiment, two sets of terminal fixing portions 30 "and 30" are formed. When molding is to be performed at the same time, the interval between the two sets of terminals 20 "and 20" is narrowed by providing bent portions 29 "and 29" in advance, thereby reducing the size of the first and second molds. It is because it can be planned.
[0031]
Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications may be made within the scope of the claims and the technical idea described in the specification and the drawings. It is possible. Note that any shape, structure, or material not directly described in the specification and drawings is within the scope of the technical idea of the present invention as long as the effects and effects of the present invention are exhibited. For example, in the above embodiment, the flexible substrate 10 is used as the substrate, but a hard substrate may be used. The substrate may be a substrate on which various patterns are formed, and may be a substrate used for any purpose. For example, the pattern formed on the substrate is not a circuit pattern but a switch pattern or a pattern for a variable resistor. The present invention can be applied to a portion for fixing the terminal to the terminal connection pattern.
[0032]
【The invention's effect】
As described above in detail, the present invention has the following excellent effects.
{Circle around (1)} Since the terminals are positioned outside the cavity by the first positioning portion provided in the terminal fixing part molding die, each terminal can be reliably brought into contact with each terminal connection pattern, which is not possible. The terminal fixing portion can be molded without quality.
[0033]
{Circle over (2)} When the tip portion of the terminal is locked by the second positioning portion, each terminal can be further securely brought into contact with each terminal connection pattern.
[0034]
{Circle around (3)} The two sets of terminals protruding from the opposite side sides of the connecting part are abutted on the respective terminal connection patterns of the two sets of substrates, and are housed in the terminal-fixing part molding die to be used as both ends. Since the terminal fixing portions are formed around the contact portions, manufacturing efficiency is improved.
[0035]
(4) Since the bent portion provided in the portion of the terminal projecting from the terminal fixing portion is provided in advance on the flat terminal before forming the terminal fixing portion, the bent portion is formed after the terminal fixing portion is formed. Thus, the bent portion can be easily formed, and the size of the mold can be reduced.
[Brief description of the drawings]
FIG. 1 is a diagram showing a terminal connection portion 1 of a flexible substrate 10 manufactured according to the present invention, wherein FIG. 1 (a) is a perspective view seen from above, and FIG. 1 (b) is a perspective view seen from below. It is.
FIG. 2 is a plan view of a terminal connection portion 1;
FIG. 3 is a sectional view taken along line AA of FIG. 2;
FIG. 4 is a diagram illustrating a method of manufacturing the terminal connection portion 1;
FIG. 5 is a diagram illustrating a method of manufacturing the terminal connection portion 1;
FIG. 6 is a diagram showing a method of manufacturing the terminal connection part 1;
FIG. 7 is an exploded perspective view of the first mold A1.
FIG. 8 is an exploded perspective view of a second mold A2.
FIG. 9 is a diagram illustrating a method of manufacturing the terminal connection portion 1;
FIG. 10 is a view showing a method of manufacturing the terminal connection portion 1;
FIG. 11 is a diagram showing a method of manufacturing the terminal connection part 1;
FIG. 12 is a view showing an example of a conventional terminal connection portion 300, wherein FIG. 12 (a) is a perspective view seen from above, and FIG. 12 (b) is a perspective view seen from below.
FIG. 13 is a plan view showing an example of a conventional terminal connection portion 300.
FIG. 14 is a sectional view taken along line aa of FIG.
FIG. 15 is a diagram illustrating a method of manufacturing the terminal connection portion 300.
FIG. 16 is a diagram illustrating a method of manufacturing the terminal connection portion 300.
FIG. 17 is a diagram illustrating a method of manufacturing the terminal connection portion 300.
FIG. 18 is an exploded perspective view of a first mold A1 ′ (A1-1 ′, A1-2 ′) having another structure used in the present invention.
FIG. 19 is a view showing a state where the terminal 20 is housed in the first mold A1 ′.
FIG. 20 is an exploded perspective view of a second mold A2 ′ (A2-1 ′, A2-2 ′) having another structure used in the present invention.
FIG. 21 is a view showing a method of manufacturing a terminal connection portion 1 ″ using still another embodiment of the present invention.
FIG. 22 is a diagram illustrating a method of manufacturing the terminal connection portion 1 ″.
[Explanation of symbols]
1 terminal connection part 10 flexible substrate (substrate)
13 Terminal connection pattern 15 Circuit pattern 17 Insulating layer 20 Terminal 30 Terminal fixing part 31 Partition part 33 Connection part 41 Partition part 43 Connection part A1 First die (terminal fixing part forming die)
C1 Cavity A1-1 Mold part 80 Pressing part 82 Gap 84 Stepped part 89 First positioning part A1-2 Mold part A2 Second mold (terminal fixing part molding die)
C2 Cavity A2-1 Mold part 100 Pressing part 102 Gap 104 Groove P Pin gate A2-2 Mold part A1 'First mold A1-1', A1-2 'Mold part 83 Second positioning part A2' Two molds A2-1 ', A2-2' Mold part 10 "Flexible board 20" Terminal 28 "Connection part 29" Bent part A1 "First mold C1" Cavity 30 "Terminal fixing part

Claims (4)

A substrate and a terminal abutting on a terminal connection pattern provided in parallel with the substrate are housed in a terminal fixing part forming die, and the terminal provided around a contact portion between the terminal and the terminal connection pattern. In a method for molding a terminal fixing portion to a substrate, which forms a terminal fixing portion around the contact portion by injecting a molten resin into a cavity of the fixing portion forming mold,
When the substrate and the terminal are accommodated in the terminal-fixing-part molding die, the pressing portion provided on the terminal-fixing-portion molding mold sandwiches the distal end portion of the terminal and the substrate from both sides thereof, and fixes the terminal. A method for forming a terminal fixing portion on a substrate, wherein a terminal is positioned by a first positioning portion provided outside a cavity of a part forming die. When the substrate and the terminal are housed in the terminal fixing part molding die, the tip end portion of the terminal is positioned by the second positioning part provided at the portion where the terminal contacts the pressing part of the terminal fixing part molding die. The method for forming a terminal fixing portion on a substrate according to claim 1, wherein: A substrate and a terminal abutting on a terminal connection pattern provided in parallel with the substrate are housed in a terminal fixing part forming die, and the terminal provided around a contact portion between the terminal and the terminal connection pattern. In a method for molding a terminal fixing portion to a substrate, which forms a terminal fixing portion around the contact portion by injecting a molten resin into a cavity of the fixing portion forming mold,
The terminal is provided so as to protrude two sets from opposite side sides of the connecting portion, while preparing two sets of the substrate, further providing two sets of cavities in the terminal fixing part molding die,
The two sets of terminals having the tips abutting on the respective terminal connection patterns of the two sets of substrates are housed in the terminal fixing part forming mold, and the terminal fixing parts provided around these two contacting parts are provided. A method for forming a terminal fixing portion on a substrate, wherein a terminal fixing portion is formed around each of the contact portions by injecting a molten resin into a cavity of a molding die. 4. The terminal according to claim 3, wherein a bent portion provided at a portion protruding from the terminal fixing portion of the terminal is provided in advance on a flat terminal before forming the terminal fixing portion. 5. Fixed part molding method.

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