WO2014087575A1 - ターミナル製造方法およびターミナル - Google Patents
ターミナル製造方法およびターミナル Download PDFInfo
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- WO2014087575A1 WO2014087575A1 PCT/JP2013/006510 JP2013006510W WO2014087575A1 WO 2014087575 A1 WO2014087575 A1 WO 2014087575A1 JP 2013006510 W JP2013006510 W JP 2013006510W WO 2014087575 A1 WO2014087575 A1 WO 2014087575A1
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- Prior art keywords
- terminal
- conductive member
- section
- corners
- cross
- Prior art date
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/02—Cable terminations
- H02G15/04—Cable-end sealings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/32—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using rotatable arms or other pivotable transmission elements
- G01F23/38—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using rotatable arms or other pivotable transmission elements using magnetically actuated indicating means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/521—Sealing between contact members and housing, e.g. sealing insert
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49204—Contact or terminal manufacturing
- Y10T29/49224—Contact or terminal manufacturing with coating
Definitions
- the present disclosure relates to a terminal to which an external conductor such as a lead wire is connected, and a manufacturing method thereof.
- Patent Document 1 describes a terminal arranged to extend from the inside of a resin housing to the outside in a liquid level detector arranged in a fuel tank.
- a seal film is formed on a portion of the terminal that comes into contact with the housing in order to prevent the fuel from entering the gap through the gap between the terminal and the housing.
- a liquid sealant is applied to the surface of the terminal, and the liquid sealant is cured to form a seal film.
- the cross-sectional shape of this type of terminal 91 is often rectangular.
- One reason is that it is easy to electrically connect an external terminal, a lead wire (external conductor) or the like to the end of the terminal 91. That is, when the end portion is flat, for example, it is easy to plastically deform the end portion and press-fit the lead wire. Or it becomes easy to electrically connect with an external terminal by welding or soldering. Or the structure which makes the said edge part a male type
- the sealing film 92 is formed on the terminal 91 having a rectangular cross section, the following problem occurs. That is, of the surface of the terminal 91, the surface tension of the liquid sealant at the time of application is at the ridge line portion (ridge corner portion 91a) located in the four corners of the rectangle and extending in the longitudinal direction of the terminal 91 (vertical direction in FIG. 17). As a result, the thickness of the seal film 92 is reduced. When such a thin portion is generated, sufficient sealing performance cannot be ensured.
- the material of the liquid sealant may not be able to select a material having a high viscosity due to circumstances such as being limited to a material that does not deteriorate even when exposed to fuel. In that case, a seal is formed on the ridge corner 91a. The above-mentioned problem such that the film 92 becomes thin becomes remarkable.
- the present disclosure has been made in view of the above-described problem, and an object of the present disclosure is to provide a terminal manufacturing method or a terminal that facilitates electrical connection with an external conductor and eliminates a reduction in the thickness of the seal film. Is to provide.
- an electrical connection part to which an external conductor is connected is provided on a surface of a predetermined part other than the electrical connection part and a conductive member formed at an end part of the conductive member.
- a method of manufacturing a terminal including the formed sealing film is provided on a surface of a predetermined part other than the electrical connection part and a conductive member formed at an end part of the conductive member.
- the predetermined portion of the conductive member is formed by rounding each of four corners of the rectangular cross section at a corresponding portion other than an end portion of a flat bar having a rectangular cross section.
- the said electrically-conductive member is formed by making the said edge part which has the said rectangular cross section among the said flat bars into the said electrical-connection part.
- a liquid sealing agent is apply
- a conductive member having an electrical connection portion to which an external conductor is connected formed at an end, and a surface of a predetermined portion of the conductive member other than the electrical connection portion And a sealing film provided on the terminal.
- the cross section of the electrical connection portion is rectangular, and the cross section of the predetermined portion is a shape in which four corners of the rectangle are each processed into a round shape.
- FIG. 1 is a front view of a liquid level detector to which a terminal according to a first embodiment of the present disclosure is applied.
- FIG. 2 is a cross-sectional view taken along the line II-II in FIG.
- FIG. 3 is an enlarged cross-sectional view taken along line III-III in FIG.
- FIG. 4 is a flowchart showing a manufacturing procedure of the terminal according to the first embodiment shown in FIGS. 2 and 3.
- FIG. 5 is a front view showing the plate material before the first pressing step of the first embodiment shown in FIG.
- FIG. 6 is a front view showing the intermediate molded product after the first pressing step of the first embodiment shown in FIG.
- FIG. 7 is a front view showing the intermediate molded product after the second pressing step of the first embodiment shown in FIG.
- FIG. 5 is a front view showing the plate material before the first pressing step of the first embodiment shown in FIG.
- FIG. 6 is a front view showing the intermediate molded product after the first pressing step of the first embodiment shown in FIG.
- FIG. 8 is a cross-sectional view showing a state before pressing, which is a mold used in the second pressing step of the first embodiment shown in FIG.
- FIG. 9 is a cross-sectional view showing a state after pressing, which is a mold used in the second pressing step of the first embodiment shown in FIG.
- FIG. 10 is a front view showing the intermediate molded product after the coating process of the first embodiment shown in FIG.
- FIG. 11 is a front view showing the intermediate molded product after the curing step of the first embodiment shown in FIG.
- FIG. 12 is a perspective view of the terminal according to the first embodiment formed by the procedure of FIG. 4, with the sealing film not shown.
- FIG. 13 is a cross-sectional view illustrating a state in which a terminal according to the second embodiment of the present disclosure is insert-molded in a housing.
- FIG. 14 is a cross-sectional view showing a state before pressing, which is a mold used in the second pressing step in the second embodiment.
- FIG. 15 is a cross-sectional view showing a state after pressing, which is a mold used in the second pressing step in the second embodiment.
- FIG. 16 is a diagram illustrating a modification of the terminal.
- FIG. 17 is a cross-sectional view of a conventional terminal.
- a terminal 10 As shown in FIG. 1, a terminal 10 according to this embodiment is applied to a liquid level detector 1.
- the liquid level detector 1 is housed in a fuel tank 2 that stores liquid fuel in the vehicle.
- the liquid level detector 1 is held by a fuel pump module 3 or the like at a position where it is immersed in the fuel in the fuel tank 2. In such a holding state, the liquid level detector 1 detects the height of the liquid level 4 in the fuel tank 2.
- the liquid level detector 1 includes a housing 20, a plurality of terminals 10, a magnet holder 30, a plurality of magnets 40, a float 50, a float arm 60, and a Hall IC 70.
- the housing 20 has an inner case 21 and an outer case 22.
- the inner case 21 is made of a resin material such as polyphenylene sulfide resin.
- the inner case 21 has a hollow storage chamber 24.
- the outer case 22 is formed of a resin material such as polyphenylene sulfide resin.
- the outer case 22 covers the periphery of the inner case 21 embedded therein.
- the outer case 22 has a base portion 25 that spreads in a thick flat plate shape, and a bearing portion 26 that protrudes from the base portion 25 in a boss shape.
- a plurality of terminals 10 are arranged so as to extend from the inside (housing chamber 24) of the housing 20 to the outside (see FIG. 1).
- Each terminal 10 is formed by providing a sealing film 12 on the conductive member 11.
- one end portion 11 b in the longitudinal direction protrudes into the storage chamber 24, while the other end portion 11 c in the longitudinal direction is exposed to the outside of the base portion 25.
- An intermediate portion (predetermined portion) 11 a located between the one end portion 11 b and the other end portion 11 c of the conductive member 11 is embedded in the base portion 25.
- the sealing film 12 seals between the conductive member 11 and the base portion 25. Specifically, even if the base portion 25 contracts in a direction away from the conductive member 11 due to deterioration over time, the base portion 25 is configured to be sealed so that no gap is generated between the conductive member 11 and the base portion 25. That is, the seal film 12 that has been elastically deformed in the compressing direction expands following the contraction of the base portion 25, so that the seal film 12 functions to fill the gap. As a result, the fuel is prevented from entering the housing 20 through the terminal 10.
- the material of the sealing film 12 is required to be elastically deformable to such an extent that the above-mentioned tracking is sufficiently performed and to have oil resistance that does not deteriorate due to fuel.
- Specific examples of the material of the sealing film 12 include rubber materials such as hydrin rubber, fluorine rubber, or nitrile rubber.
- the material of the conductive member 11 is required to have oil resistance and conductivity that do not deteriorate due to fuel.
- Specific examples of the material of the conductive member 11 include metal materials such as bronze or brass such as phosphor bronze.
- the intermediate portion 11a has a shape in which a cross section 11s extending perpendicularly to the longitudinal direction of the conductive member 11 has rounded rectangular corners.
- the one end portion 11b and the other end portion 11c have a rectangular (flat shape) cross section extending perpendicularly to the longitudinal direction, and the four corners of the rectangle are at right angles.
- the center of the intermediate portion 11a coincides with the centers of the end portions 11b and 11c.
- the seal film 12 is provided in a shape extending in an annular shape on the surface of the intermediate portion 11a. As shown in FIG. 2, in the longitudinal direction of the terminal 10 (vertical direction in FIG. 2), when the area of the base portion 25 through which the terminal 10 passes is A1, and the area of the intermediate portion 11a is A2, the area A1 The terminal 10 is arranged so that the area A2 is included therein. In other words, it can be said that the region A2 of the seal film 12 is also included in the region A1.
- the terminal 72 of the Hall IC 70 is electrically connected to the flat surface of the one end 11b by welding or soldering.
- a lead wire 80 is electrically connected to the flat surface of the other end portion 11c by pressure bonding. Specifically, as shown in FIGS. 1 and 2, a crimping part 11d and a locking part 11e are formed in the other end part 11c. The conductive portion of the lead wire 80 is sandwiched and crimped between the crimping portion 11d and the other end portion 11c. Thereby, the lead wire 80 and the terminal 10 are electrically connected.
- each of the three lead wires 80 is a signal line that outputs a detection signal of the Hall IC 70, a power supply line that supplies power to the Hall IC 70, and a ground line.
- the terminal 72 and the lead wire 80 of the Hall IC 70 correspond to the “external conductor”, and the one end portion 11b and the other end portion 11c correspond to the “electric connection portion”.
- the magnet holder 30 is formed of a resin material such as polyacetal resin.
- the magnet holder 30 is rotatably supported by the bearing portion 26.
- a pair of magnets 40 is formed of a ferromagnetic material such as a ferrite magnet.
- Each magnet 40 is embedded in the magnet holder 30 so as to be integrally rotatable.
- the float 50 is formed of a lightweight material such as foamed ebonite and has a specific gravity smaller than that of the fuel.
- the float 50 can float on the fuel level 4 in the fuel tank 2.
- the float arm 60 is formed in a wire shape from a metal material such as stainless steel. The float arm 60 connects between the float 50 and the magnet holder 30. With this connection, relative rotation with respect to the housing 20 occurs in the magnet holder 30 following the vertical movement of the float 50 floating on the liquid surface 4.
- the Hall IC 70 is a magnetic detection element that detects a magnetic field and generates a signal corresponding to the detected magnetic field.
- the Hall IC 70 is disposed between the pair of magnets 40 by being accommodated in the accommodation chamber 24.
- the Hall IC 70 has a plurality of terminals 72 connected to the corresponding terminals 10.
- the Hall IC 70 senses the magnetic field generated between the magnets 40 in the state of voltage application from the outside, and outputs the generated signal to the outside of the fuel tank 2 through the predetermined terminal 72, the terminal 10, and the lead wire 80. .
- the magnetic field sensed by the Hall IC 70 changes according to the relative rotation angle of the magnet holder 30 with respect to the housing 20, that is, according to the vertical movement of the float 50. Therefore, the height of the liquid surface 4 on which the float 50 floats can be detected based on the output signal from the Hall IC 70.
- the intermediate molded product 11w shown in FIG. 6 is taken from the plate material 11v shown in FIG. Specifically, the plate material 11v is pressed to form an intermediate molded product 11w having a shape in which a plurality (three in the example of FIG. 6) of flat bars 11x having a rectangular cross section 11sx are connected.
- the length in the longitudinal direction of the intermediate molded product 11 w matches the length in the longitudinal direction of the terminal 10.
- the intermediate portion 11ax of the flat bar 11x is processed so that the corners 11ax1 to 11ax4 of the rectangular cross section 11sx are rounded (see FIG. 7).
- the intermediate molded product 11w is set between the upper mold K1 and the lower mold K2 of the press machine.
- Each of the pair of molds K1 and K2 has four portions facing the four corners 11ax1 to 11ax4 of the rectangular section 11sx of the intermediate portion 11ax, that is, four press surfaces K3 are formed in an arc shape. .
- the upper die K1 is lowered and pressed, so that the four corners of the intermediate portion 11ax of the flat bar 11x corresponding to the intermediate portion 11a of the conductive member 11 are shown in FIG.
- the corners 11ax1 to 11ax4 are rounded simultaneously.
- the cross sections 11bs and 11cs of the end portions 11b and 11c of the conductive member 11 are rectangular (substantially the cross section 11sx of the flat bar 11x shown in FIG. 8). The same shape). That is, the end portions 11bx and 11cx of the flat bar 11x included in the intermediate molded product 11w correspond to the end portions 11b and 11c of the conductive member 11 and function as electrical connection portions.
- the cross section 11bs of the one end portion 11b is, for example, a cross section of the one end portion 11b between the intermediate portion 11a shown in FIG. 12 and the end of the one end portion 11b on the side opposite to the intermediate portion 11a.
- the cross section 11cx of the other end portion 11c is, for example, a cross section of the other end portion 11c between the intermediate portion 11a shown in FIG. 12 and the crimping portion 11d in the other end portion 11c.
- the liquid sealing agent 12x is obtained by diluting an uncrosslinked raw rubber such as hydrin rubber, fluorine rubber or nitrile rubber with a solvent such as toluene.
- the liquid sealing agent 12x applied to the intermediate portion 11a is cured.
- the liquid sealing agent 12x may be naturally dried at room temperature or may be dried by heating. Thereby, the solvent in the liquid sealing agent 12x is evaporated and cured.
- the conductive member 11 coated with the liquid sealant 12x is put into a heating furnace (not shown) and baked. In the baking treatment, for example, heating is performed at a temperature of about 150 ° C. for about 30 minutes. As a result, the raw rubber in the liquid sealant 12x is cross-linked, so that the sealant 12x is cured and the seal film 12 is formed as shown in FIG.
- the intermediate molded product 11w is pressed to cut out three conductive members 11 as shown in FIG. In FIG. 11, the three cut conductive members 11 are arranged adjacent to each other for easy understanding. Thereafter, in the bending step S60, the end portion 11c is bent to form the crimping portion 11d and the locking portion 11e.
- the electrical connection portions of the conductive member 11, that is, the end portions 11 b and 11 c are formed in a shape in which the cross sections 11 bs and 11 cs are rectangular, and the intermediate portion 11 a is formed in a shape in which the cross section 11 as is rounded. Is done.
- a sealing film 12 is formed on the intermediate part 11 a of the conductive member 11. Thereby, the terminal 10 is completed.
- the terminal 10 manufactured in this way is arranged in a resin molding die when the base portion 25 is resin-molded, and is insert-molded together with the base portion 25.
- the sealing film 12 is compressed and elastically deformed by the pressure of the molten resin in the mold during the resin molding, and the terminal 10 is embedded in the base portion 25 in the elastically deformed state. Therefore, even if the base portion shrinks due to heat shrinkage or aging deterioration, the seal film 12 expands following the shrinkage, and the seal film 12 has a sealing function so that there is no gap between the terminal 10 and the base portion 25. Demonstrate.
- the intermediate portion 11ax of the flat bar 11x is pressed to round the corner of the rectangular cross section 11sx (see the rounded corner indicated by reference numeral 11p in FIG. 3). Therefore, the ridge corner portion 91a illustrated in FIG. 17 does not exist in the intermediate portion 11a to which the liquid sealing agent 12x is applied in the conductive member 11. Therefore, it can be solved that the film thickness of the seal film 12 is reduced due to the surface tension of the liquid sealant 12x during the coating step S30.
- the end portions 11b and 11c functioning as the electrical connection portions are not processed with rounded corners of the rectangular shape, and a wide flat surface is secured since the cross sections 11bs and 11cs are rectangular like the flat bar 11x. Shape. Therefore, when the terminal 72 of the Hall IC 70 is electrically connected to the one end portion 11b by welding or soldering, the connection workability can be improved. Further, when crimping and electrically connecting the lead wire 80 to the other end portion 11b, the process of forming the crimping portion 11d and the locking portion 11e can be easily realized, and the electrical connection by the crimping can be easily realized.
- the manufacturing method of the present embodiment includes an intermediate manufacturing process for manufacturing an intermediate molded product 11w having a shape in which a plurality of flat bars 11x are connected by pressing a plate material 11v, that is, a first pressing process S10.
- the second pressing step S20 processing step
- the corners 11ax1 to 11ax4 of the intermediate portion (predetermined portion) 11ax are rounded simultaneously on the plurality of flat bars 11x by pressing the intermediate molded product 11w.
- the intermediate portion 11ax of the plurality of flat bars 11x can be processed at a time by performing the second pressing step S20 only once, so that the processing efficiency can be improved.
- the second pressing step S20 processing step
- four portions respectively opposed to the four corners 11ax1 to 11ax4 of the rectangular section 11sx of the intermediate portion (predetermined portion) 11ax That is, the four bars 11x1 to 11ax4 of the rectangular cross section 11sx are simultaneously formed by pressing the flat bar 11x using a pair of dies K1 and K2 having four press surfaces K3 formed in an arc shape. It is characterized by round processing. According to this, since the four corners 11ax1 to 11ax4 can be processed simultaneously, the processing efficiency can be improved.
- the terminal 10 of this embodiment is disposed so as to extend from the inside to the outside of the housing 20 that is disposed in an environment exposed to liquid fuel, and the seal film 12 is provided between the housing 20 and the conductive member 11. It is sealed.
- the material of the liquid sealant 12x is required to have oil resistance that is not denatured by the fuel.
- the liquid sealant 12x having a low viscosity is employed, the above-described problem that the film thickness of the seal film 92 becomes thin occurs when the ridge angle portion 91a illustrated in FIG. 17 exists. Therefore, if the intermediate portion 11a having a cross-section 11s with rounded corners is provided in the terminal 10 used in an environment exposed to fuel as described above, the effect of solving the above problems is preferably exhibited.
- the portions other than the rounded corners 11p of the two end faces facing each other in the longitudinal direction of the cross section 11s have a flat shape (see FIG. 3).
- grooves 11 h are formed on the two end faces 11 g in the cross section 11 s of the intermediate portion 11 a of the conductive member 11.
- the end surface 11g in which the groove 11h is formed is two end surfaces (an upper end surface and a lower end surface in FIG. 13) facing each other in the longitudinal direction (vertical direction in FIG. 13) of the cross section 11s of the intermediate portion 11a.
- the groove 11h has a shape extending in the axial direction of the terminal 10, that is, in the longitudinal direction of the terminal 10 (perpendicular to the paper surface in FIG. 13), and is formed over the entire region A2 of the intermediate portion 11a.
- the seal film 12 is formed with a recess 12a that is recessed along the groove 11h.
- the recess 12a of the seal film 12 is filled with a base portion 25 made of resin.
- the thickness dimension T of the portion provided in the recess 12a is larger than the thickness dimension of the other portions.
- the intermediate portion 11ax of the flat bar 11x is processed so that the rectangular cross section 11sx corner is rounded, and at the same time, the groove 11h is formed in the end surface 11gx of the intermediate portion 11ax.
- a method of forming the groove 11h will be described with reference to FIGS.
- the dies K1, K2 of the press according to the first embodiment and the solid lines in FIG. 14 indicate the dies K1A, K2A of the press according to the present embodiment.
- the ridge corners of the flat bar 11x that is, four portions (press surfaces K3) facing the corners 11ax1 to 11ax4 are formed in an arc shape.
- the molds K1A and K2A according to the present embodiment have a longer press surface K3 than the molds K1 and K2 according to the first embodiment.
- the press surface K3 has a cross section of 11sx from the corners 11ax1 to 11ax4.
- a length L extending in the longitudinal direction is set to be long. Therefore, in the state of FIG. 15 where the lowering of the upper die K1A is completed, a space S exists between the end surface 11g of the intermediate portion 11a and the press surface K3.
- the portion (corner portion 11f) located in the vicinity of the corners 11ax1 to 11ax4 of the intermediate portion 11ax of the flat bar 11x is pushed by the press surface K3 to be plastically deformed.
- the corner portion 11fx is plastically deformed along the press surface K3 so as to protrude in the longitudinal direction (left-right direction in FIG. 14) of the rectangular cross section 11sx.
- the two corners provided at the two end portions in the longitudinal direction of the cross section 11s of the intermediate portion 11a of the conductive member 11 are raised by the protruding corner portions 11fx located at the four corners of the rectangular cross section 11sx.
- a groove 11h is formed between the portions 11f.
- the corner portion 11f is raised and the groove 11h is formed immediately after the lowering of the upper mold K1A is started.
- the raised corner portion 11f is crushed by the press surface K3 due to the absence of the space S, and plastically deforms in a direction to fill the groove 11h.
- the corner of the rectangular cross section is processed to be rounded without forming the groove 11h.
- the shape of the press surface K3 is set so that the space S exists. Therefore, the corner portion 11f raised as described above immediately after the start of the lowering of the upper mold K1A is located in the space S and is not crushed by the press surface K3. Therefore, at the same time that the corners of the rectangular cross section are processed to be rounded, the grooves 11h are formed between the raised corner portions 11f.
- the groove 11h is applied thicker than other portions.
- the shapes of the press surfaces K3 of the molds K1A and K2A are set so that the groove 11h has a sufficiently deep shape so that the liquid sealing agent 12x is accumulated without flowing out of the groove 11h. Therefore, when the curing step S40 is completed, the thickness dimension T of the portion provided in the recess 12a among the thickness dimensions of the seal film 12 is larger than the thickness dimension of the other portions.
- the shape of the press surface K3 is set so that the groove 11h has a sufficiently deep shape so that the concave portion 12a that is recessed along the groove 11h is formed in the seal film 12. Has been.
- the terminal 10 manufactured as described above is placed in a resin molding die when the base portion 25 is resin-molded, and is insert-molded together with the base portion 25.
- the concave portion 12a is filled with the resin of the base portion 25.
- the base portion 25 has a convex portion 25a (see FIG. 13) that fits into the concave portion 12a.
- the intermediate portion 11ax is processed so that the corners 11ax1 to 11ax4 of the rectangular cross section 11sx are rounded.
- Grooves 11h are formed in two end faces 11g in the cross section 11sx of the intermediate part 11a.
- the liquid sealant 12x is easily accumulated in the groove 11h. Therefore, among the thickness dimensions of the seal film 12, the thickness dimension T of the portion provided in the recess 12a is larger than the thickness dimension of the other portions. Therefore, the sealing performance by the sealing film 12 can be improved. Moreover, by pressing, the corners of the rectangular cross section 11sx are processed to be rounded, and at the same time, the grooves 11h are formed. Therefore, the groove 11h can be formed without adding a process.
- the groove 11h is formed in the end surface 11g of the intermediate portion 11a, and the seal film 12 is provided on the surface of the intermediate portion 11a including the groove 11h. Therefore, among the thickness dimensions of the seal film 12, the thickness dimension T of the portion provided in the recess 12a is larger than the thickness dimension of the other portions. Therefore, the sealing performance by the sealing film 12 can be improved.
- the liquid sealing agent 12x is applied to the groove 11h so that the recess 12a that is recessed along the groove 11h is formed in the seal film 12.
- the seal film 12 has a recess 12a that is recessed along the groove 11h.
- the corner of the intermediate portion 11a of the conductive member 11 is formed in an arc shape.
- the intermediate portion 11a may have a shape in which a rectangular corner is rounded. What is necessary is just the shape which does not have the ridge corner part 91a shown in FIG.
- “rounding” is not limited to processing in a strictly arc shape, and “ridge corner” is a portion having an angle of 90 degrees or less. Therefore, for example, like the terminal 100 shown in FIG. 16, the cross section 110s of the shape which chamfered the corner
- the liquid sealing agent 12x may be dropped and applied to the intermediate portion 11a, or the liquid sealing agent 12x may be stored in a container and stored in the liquid sealing agent 12x. Alternatively, the liquid sealant 12x may be applied to the intermediate portion 11a by immersing the intermediate portion 11a.
- the seal film 12 is formed with a recess 12a that is recessed along the groove 11h.
- the seal film 12 may be formed so that the concave portion 12a is not formed while the groove 11h is formed in the end surface 11g of the intermediate portion 11a.
- the sealing film 12 is provided in the region A2 of the intermediate portion 11a of the conductive member 11.
- the sealing film 12 may be provided over the entire region A1 of the terminal 10 that penetrates the base portion 25.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
Description
上記目的を達成するために、本開示では、外部導電体が接続される電気接続部が端部に形成された導電部材と、前記導電部材のうち前記電気接続部以外の所定部分の表面に設けられたシール膜とを備えるターミナルの製造方法を提供する。本開示の製造方法では、矩形形状の断面を有する平棒のうちの端部以外の対応する部分において前記矩形形状の断面の4つの角をそれぞれ丸くして、前記導電部材の前記所定部分を形成し、前記平棒のうちの前記矩形形状の断面を有する前記端部を前記電気接続部とすることにより、前記導電部材を形成する。そして、前記所定部分に液状シール剤を塗布する。さらに、前記所定部分に塗布した前記液状シール剤を硬化させる。
さらに、上記目的を達成するために、本開示では、外部導電体が接続される電気接続部が端部に形成された導電部材と、前記導電部材のうち前記電気接続部以外の所定部分の表面に設けられたシール膜とを備えるターミナルを提供する。前記電気接続部の断面は矩形形状であり、前記所定部分の断面は、矩形の4つの角がそれぞれ丸く加工された形状である。
図1に示すように、本実施形態にかかるターミナル10は、液面検出器1に適用される。
まず、液面検出器1の構成を詳細に説明する。
次に、上述した液面検出器1に適用されるターミナル10の製造方法について、図4の製造フローに従って、図5~図12を参照しつつ説明する。尚、図8,図9の上下方向は、製造環境における鉛直方向と実質一致している。
上記第1実施形態における導電部材11の中間部11aの断面11sでは、該断面11sの長手方向に互いに対向する2つの端面のうち、丸く加工された角11p以外の部分は平坦形状である(図3参照)。これに対し本実施形態では、図13に示すように、導電部材11の中間部11aの断面11sにおける2つの端面11gには、溝11hが形成されている。溝11hが形成される端面11gは、中間部11aの断面11sの長手方向(図13の上下方向)に互いに対向する2つの端面(図13の上側の端面および下側の端面)である。溝11hは、ターミナル10の軸線方向、即ち、ターミナル10の長手方向(図13の紙面垂直方向)に延びる形状であり、中間部11aの領域A2の全体に亘って形成されている。
本開示は上記実施形態の記載内容に限定されず、以下のように変更して実施してもよい。また、各実施形態の特徴的構成をそれぞれ任意に組み合わせるようにしてもよい。
Claims (9)
- 外部導電体(80、72)が接続される電気接続部(11b、11c)が端部に形成された導電部材(11)と、前記導電部材(11)のうち前記電気接続部(11b、11c)以外の所定部分(11a)の表面に設けられたシール膜(12)とを備えるターミナルの製造方法であって、
矩形形状の断面(11sx)を有する平棒(11x)のうちの端部(11bx、11cx)以外の対応する部分(11ax)において前記矩形形状の断面(11sx)の4つの角(11ax1~11ax4)をそれぞれ丸くして、前記導電部材(11)の前記所定部分(11a)を形成し、前記平棒(11x)のうちの前記矩形形状の断面(11sx)を有する前記端部(11bx、11cx)を前記電気接続部(11b、11c)とすることにより、前記導電部材(11)を形成することと、
前記所定部分(11a)に液状シール剤(12x)を塗布することと、
前記所定部分(11a)に塗布した前記液状シール剤(12x)を硬化させることにより、前記シール膜(12)を形成すること
を含むターミナル製造方法。 - 前記導電部材(11)の前記所定部分(11a)を形成することを実施する前に、前記平棒(11x)が、互いに連結した複数の平棒(11x)のうちの1つとして設けられた中間成形品(11w)を、板材(11v)をプレス加工することによって形成することを含み、
前記導電部材(11)を形成することは、前記中間成形品(11w)をプレス加工することにより、前記複数の平棒(11x)のそれぞれの前記対応する部分(11ax)において前記矩形形状の断面(11sx)の前記4つの角(11ax1~11ax4)を同時に丸くすることを含む請求項1に記載の製造方法。 - 前記導電部材(11)を形成することは、前記対応する部分(11ax)における前記矩形形状の断面(11sx)の前記4つの角(11ax1~11ax4)にそれぞれ対向し、円弧形状に形成された4つのプレス面(K3)を備えた1対の金型(K1、K2)を用いて、前記平棒(11x)をプレス加工することにより、前記対応する部分(11ax)における前記矩形形状の断面(11sx)の前記4つの角(11ax1~11ax4)を同時に丸くすることを含む請求項1または2に記載の製造方法。
- 前記導電部材(11)を形成することは、前記平棒(11x)をプレス加工することにより、前記対応する部分(11ax)の前記矩形形状の断面(11sx)の前記4つの角(11ax1~11ax4)をそれぞれ丸くすることと同時に、前記対応する部分(11ax)の前記矩形形状の断面(11sx)の長手方向に互いに対向する2つの端面(11g)のうちの少なくとも一方に溝(11h)を形成することを含む請求項1~3のいずれか1つに記載の製造方法。
- 前記液状シール剤(12x)を塗布することは、前記溝(11h)に沿って凹む凹部(12a)が前記シール膜(12)に形成されるように、前記液状シール剤(12x)を前記溝(11h)に塗布することを含む請求項4に記載の製造方法。
- 外部導電体(80、72)が接続される電気接続部(11b、11c)が端部に形成された導電部材(11)と、
前記導電部材(11)のうち前記電気接続部(11b、11c)以外の所定部分(11a)の表面に設けられたシール膜(12)と
を備えるターミナルであって、
前記電気接続部(11b、11c)の断面(11bs、11cs)は矩形形状であり、
前記所定部分(11a)の断面(11s)は、矩形の4つの角がそれぞれ丸く加工された形状であるターミナル。 - 前記ターミナルは、液体燃料に晒される環境に配置されるハウジング(20)の、内部から外部に延びるように配置され、
前記シール膜(12)は、前記ハウジング(20)と前記導電部材(11)との間をシールしている請求項6に記載のターミナル。 - 前記所定部分(11a)の断面(11s)の長手方向に互いに対向する2つの端面(11g)の少なくとも一方には溝(11h)が形成されており、
前記シール膜(12)は、前記溝(11h)も含めた前記所定部分(11a)の表面に設けられている請求項6または7に記載のターミナル。 - 前記シール膜(12)には、前記溝(11h)に沿って凹む凹部(12a)が形成されている請求項6~8のいずれか1つに記載のターミナル。
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CN201380061042.XA CN104813548B (zh) | 2012-12-03 | 2013-11-05 | 端子的制造方法以及端子 |
KR1020157013597A KR101684819B1 (ko) | 2012-12-03 | 2013-11-05 | 터미널 제조 방법 및 터미널 |
US14/424,457 US9293906B2 (en) | 2012-12-03 | 2013-11-05 | Method for manufacturing terminal, and terminal |
BR112015011135A BR112015011135A2 (pt) | 2012-12-03 | 2013-11-05 | Método para fabricação de um terminal, e, terminal |
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US9466904B2 (en) | 2012-11-23 | 2016-10-11 | Denso Corporation | Method for manufacturing terminal, and terminal |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04324323A (ja) * | 1991-04-25 | 1992-11-13 | Nippondenso Co Ltd | 車両用センダのフランジ部構造およびその製造方法 |
JPH08115761A (ja) * | 1994-10-14 | 1996-05-07 | Sankyo Seiki Mfg Co Ltd | ジャンパーチップ及びその製造方法 |
JP2007220484A (ja) * | 2006-02-16 | 2007-08-30 | Auto Network Gijutsu Kenkyusho:Kk | 端子金具及び端子金具の製造方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5273456A (en) * | 1992-04-09 | 1993-12-28 | Itt Corporation | Mate sensing connector system |
US5520553A (en) * | 1994-12-08 | 1996-05-28 | Molex Incorporated | Connector with a front end mounted terminal position assurance system |
JP3870467B2 (ja) | 1996-03-12 | 2007-01-17 | 株式会社デンソー | 電気接続部を有する成形品とその成形方法 |
US6325669B1 (en) * | 2000-07-06 | 2001-12-04 | Itt Manufacturing Enterprises, Inc. | Electrical connector sealing system |
JP4020358B2 (ja) * | 2001-10-01 | 2007-12-12 | 矢崎総業株式会社 | 端子防油水構造 |
JP4125262B2 (ja) | 2004-05-07 | 2008-07-30 | 矢崎総業株式会社 | 非接触式液面レベルセンサ |
JP2010123310A (ja) * | 2008-11-18 | 2010-06-03 | Yazaki Corp | 端子金具の製造方法及びプレス金型 |
JP5700075B2 (ja) | 2012-11-23 | 2015-04-15 | 株式会社デンソー | ターミナル製造方法およびターミナル |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04324323A (ja) * | 1991-04-25 | 1992-11-13 | Nippondenso Co Ltd | 車両用センダのフランジ部構造およびその製造方法 |
JPH08115761A (ja) * | 1994-10-14 | 1996-05-07 | Sankyo Seiki Mfg Co Ltd | ジャンパーチップ及びその製造方法 |
JP2007220484A (ja) * | 2006-02-16 | 2007-08-30 | Auto Network Gijutsu Kenkyusho:Kk | 端子金具及び端子金具の製造方法 |
Cited By (1)
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---|---|---|---|---|
US9466904B2 (en) | 2012-11-23 | 2016-10-11 | Denso Corporation | Method for manufacturing terminal, and terminal |
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US9293906B2 (en) | 2016-03-22 |
BR112015011135A2 (pt) | 2017-08-29 |
JP2014132550A (ja) | 2014-07-17 |
CN104813548A (zh) | 2015-07-29 |
US20150214712A1 (en) | 2015-07-30 |
KR20150079759A (ko) | 2015-07-08 |
JP5700076B2 (ja) | 2015-04-15 |
CN104813548B (zh) | 2016-10-12 |
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