CN111384614A - Terminal assembly and power connector - Google Patents

Terminal assembly and power connector Download PDF

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Publication number
CN111384614A
CN111384614A CN201811653508.6A CN201811653508A CN111384614A CN 111384614 A CN111384614 A CN 111384614A CN 201811653508 A CN201811653508 A CN 201811653508A CN 111384614 A CN111384614 A CN 111384614A
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CN
China
Prior art keywords
terminal
terminal assembly
assembly according
terminals
mounting
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Granted
Application number
CN201811653508.6A
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Chinese (zh)
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CN111384614B (en
Inventor
张志成
何家勇
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Tyco Electronics Shanghai Co Ltd
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Tyco Electronics Shanghai Co Ltd
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Priority to CN201811653508.6A priority Critical patent/CN111384614B/en
Publication of CN111384614A publication Critical patent/CN111384614A/en
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Publication of CN111384614B publication Critical patent/CN111384614B/en
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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
    • H01R13/02—Contact members
    • 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
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/02—Soldered or welded connections
    • H01R4/029—Welded connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member

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  • Connector Housings Or Holding Contact Members (AREA)

Abstract

A terminal assembly and power connector are disclosed. The terminal assembly includes: a substrate; a pair of first terminals mounted on the opposite surfaces of the base, respectively. Each first terminal includes: a first mounting portion mounted on the base; and at least one contact portion extending from the first mounting portion. Since the first terminals of the terminal assemblies are mounted on the base body, the first terminals and the base body can be fabricated separately from each other, and thereafter, a plurality of the first terminals are mounted on the base bodies having different shapes and sizes, respectively, thereby obtaining terminal assemblies having different functions and current-carrying capabilities.

Description

Terminal assembly and power connector
Technical Field
At least one embodiment of the present disclosure relates to a power connector, and more particularly, to a terminal assembly for a power connector and a power connector including such a conductive terminal.
Background
In the prior art, a power connector generally includes an insulative housing and positive and negative conductive terminals disposed in the housing. The positive conductive terminal and the negative conductive terminal are adapted to be in electrical contact with a positive bus bar and a negative bus bar, respectively, inserted into the power connector. Generally, each conductive terminal includes a base portion for connecting a wire, and a contact portion extending from the base portion for connecting a bus bar (conductive strip).
In order to meet the requirement of being capable of transmitting large current such as direct current of more than 150A or alternating current of more than 45A, the conductive terminals of the upper and lower rows for clamping the bus bar are designed to be of a double-layer structure so as to provide thicker materials and more contact points. According to actual needs, the base parts of the conductive terminals of the upper row and the lower row for connecting the wires have different bending structures, so that different molds are needed for manufacturing the conductive terminals of the upper row and the lower row. Further, the widths of the bases of the positive electrode (DC +) and the negative electrode (DC-) for connecting a direct current power supply, and the Live end (Live, L), the neutral end (neutral, N) and the Protection Earth end (PE) for connecting an alternating current power supply are also different, and the number of theoretically required conductive terminals and molds for manufacturing the conductive terminals is larger.
Disclosure of Invention
An object of the present invention, which is directed to solving at least one of the above-mentioned problems and disadvantages of the prior art, is to provide a terminal assembly, of which a first terminal, a second terminal and a base body can be fabricated separately from each other, and a power connector.
According to an embodiment of one aspect of the present invention, there is provided a terminal assembly including: a substrate; a pair of first terminals mounted on the opposite surfaces of the base, respectively. Each first terminal includes: a first mounting portion mounted on the base; and at least one contact portion extending from the first mounting portion.
According to an embodiment of the present disclosure, the base body and the first terminal are respectively made of a plate-shaped metal having a predetermined thickness, and the thickness of the base body is greater than the thickness of the first terminal.
According to an embodiment of the present disclosure, the pair of first terminals are respectively mounted on two opposite surfaces in a thickness direction of the base.
According to one embodiment of the present disclosure, the terminal assembly further includes, a pair of second terminals, each second terminal including: a second mounting portion mounted on an outer side of the first mounting portion; and a holding portion extending from the second mounting portion to an outer side of the contact portion, the holding portion being provided with a projection portion penetrating the contact portion so that the contact portion and the projection portion are in electrical contact with a bus bar inserted between the pair of first terminals.
According to an embodiment of the present disclosure, each of the first terminals includes a plurality of contact portions, and a gap is provided between two adjacent contact portions.
According to an embodiment of the present disclosure, the base body, the first terminal, and the second terminal are fabricated independently of each other.
According to an embodiment of the present disclosure, each of the first mounting portion and the second mounting portion is provided with a plurality of rows of mounting through holes, the base body is provided with a plurality of rows of fixing columns, and the fixing columns respectively penetrate through the mounting through holes so as to mount the first terminal and the second terminal on the base body.
According to an embodiment of the present disclosure, the first terminal and the second terminal are mounted on the base body by laser welding.
According to an embodiment of the present disclosure, an extension line of each of the gaps in the longitudinal direction passes through a column of the mounting through-holes on the base body.
According to an embodiment of the present disclosure, at least one partition mark aligned with an extension line of the at least one gap in the longitudinal direction, respectively, is provided on the first mounting part and the second mounting part.
According to an embodiment of the present disclosure, an electrical conductivity of the first terminal is greater than an electrical conductivity of the second terminal; an elastic modulus of the first terminal is smaller than an elastic modulus of the second terminal; and the thickness of the first terminal is greater than the thickness of the second terminal.
According to an embodiment of the present disclosure, the holding portion of the second terminal includes a plurality of spring pieces spaced apart from each other, a width of a free end of the spring pieces is greater than a width of the gap, and a recess protruding toward an inner side of the first terminal is provided on the free end, the recess forming the protruding portion, a contact through hole is provided on each contact portion of the first terminal, and the protruding portion is inserted into the contact through hole.
According to an embodiment of the present disclosure, the holding portion of the second terminal includes a plurality of spring pieces spaced apart from each other, a width of a free end of the spring pieces is larger than a width of the gap, and a recess protruding toward an inner side of the first terminal is provided on the free end, the recess forming the protruding portion, the protruding portion being inserted into the gap.
According to an embodiment of the present disclosure, the holding portion of the second terminal includes a plurality of spring pieces spaced apart from each other, and a width of a free end of the spring piece is smaller than a width of the gap and is bent toward an inner side of the first terminal to form the protruding portion.
According to an embodiment of the present disclosure, an outer side of the second terminal is provided with a first positioning protrusion configured to prevent the second terminal from being further inserted into the insulative housing.
According to an embodiment of the present disclosure, an outer side of the second terminal is provided with a second positioning protrusion configured to prevent the second terminal from being withdrawn from the insulative housing.
According to an embodiment of the present disclosure, the substrate includes: a fixing portion on which the first and second mounting portions are mounted; and a connecting portion extending perpendicular to the fixing portion, the connecting portion being adapted to be mechanically and electrically connected with a conductor of a cable.
According to an embodiment of the disclosure, the connection portion is arranged perpendicularly with respect to the longitudinal direction.
According to an embodiment of the disclosure, the connection portion is arranged obliquely with respect to the longitudinal direction.
According to an embodiment of the present disclosure, the connecting portion extends parallel to the longitudinal direction from a side of the fixing portion opposite to the contact portion.
According to an embodiment of another aspect of the present invention, there is provided a power connector including: a plurality of terminal assemblies according to any one of the above embodiments; and an insulating housing provided with a plurality of accommodating passages into which the terminal assemblies are respectively inserted.
According to one embodiment of the present disclosure, the terminal assembly includes a terminal assembly adapted to transmit a DC power signal and a terminal assembly adapted to transmit an AC power signal.
According to one embodiment of the present disclosure, a terminal assembly adapted to transmit an AC power signal includes a terminal assembly for connecting to a hot wire, a terminal assembly for connecting to a neutral wire, and a terminal assembly for connecting to a protective ground wire.
According to an embodiment of the present disclosure, the terminal assembly further comprises: a plurality of detection terminals for transmitting signals representing the operating states of the terminal assembly for transmitting the current power signal and the terminal assembly for transmitting the current power signal.
In the terminal assembly and the power connector according to the embodiment of the present disclosure, since the first terminals of the terminal assembly are mounted on the base body, the first terminals and the base body can be fabricated separately from each other, and thereafter, a plurality of first terminals are respectively mounted on the base bodies having different shapes and sizes, thereby obtaining terminal assemblies having different functions and current carrying capabilities.
Other objects and advantages of the present invention will become apparent from the following description of the invention which refers to the accompanying drawings, and may assist in a comprehensive understanding of the invention.
Drawings
FIG. 1 shows a perspective view of a power connector according to an example embodiment of the invention;
FIG. 2 is another perspective view of the power connector shown in FIG. 1;
FIG. 3 is a perspective view of the power connector shown in FIG. 1;
FIG. 4 shows a front view of the power connector shown in FIG. 1;
FIG. 5 shows a rear view of the power connector shown in FIG. 1;
fig. 6 shows a perspective view of a terminal assembly according to an exemplary embodiment of the present invention;
fig. 7 shows a side view of the terminal assembly shown in fig. 6;
fig. 8 is an exploded view of the terminal assembly of fig. 6;
FIG. 9 shows a schematic perspective view of a first terminal and a second terminal according to an example embodiment of the invention;
fig. 10 shows a schematic perspective view of a first terminal and a second terminal according to another exemplary embodiment of the invention;
FIG. 11 shows a perspective view of a substrate according to another exemplary embodiment of the present invention;
FIG. 12 shows a schematic perspective view of an insulating housing according to another exemplary embodiment of the invention;
FIG. 13 is another perspective view of the insulating housing shown in FIG. 12; and
fig. 14 shows a schematic arrangement of the conductive terminals as viewed from the rear side of the power connector.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings. In the specification, the same or similar reference numerals denote the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention and should not be construed as limiting the invention.
Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in schematic form in order to simplify the drawing.
According to one general technical concept of the present invention, there is provided a terminal assembly adapted to be partially inserted into an insulative housing of a connector in an insertion direction, including a base; a pair of first terminals respectively mounted on opposite surfaces of the base, each of the first terminals including: a first mounting portion mounted on the base; and at least one contact portion extending from the first mounting portion.
FIG. 1 shows a perspective view of a power connector according to an example embodiment of the invention; FIG. 2 is another perspective view of the power connector shown in FIG. 1; FIG. 3 is a perspective view of the power connector shown in FIG. 1; FIG. 4 shows a front view of the power connector shown in FIG. 1; fig. 5 shows a rear view of the power connector shown in fig. 1.
As shown in fig. 1-5, in an exemplary embodiment, the power connector 100 generally includes: an insulating housing 1 made of plastic material and a plurality of terminal assemblies 2, 3 and 4.
FIG. 12 shows a schematic perspective view of an insulating housing according to another exemplary embodiment of the invention; fig. 13 is another perspective view of the insulating housing shown in fig. 12.
As shown in fig. 12 and 13, the insulative housing 1 is provided with a plurality of accommodating passages 11 extending in the insertion direction (longitudinal direction) of the terminal assemblies, and a plurality of the terminal assemblies 2, 3, and 4 are respectively inserted into the accommodating passages 12. The insulating housing 1 is provided with mounting wing portions 12 on both sides in the lateral direction, the mounting wing portions 12 are provided with mounting through holes 121, and the insulating housing 1 can be mounted on the support frame by means of connecting members such as bolts.
Fig. 6 shows a perspective view of a terminal assembly according to an exemplary embodiment of the present invention; fig. 7 shows a side view of the terminal assembly shown in fig. 6; fig. 8 is an exploded view of the terminal assembly of fig. 6; fig. 9 shows a schematic perspective view of a first terminal and a second terminal according to an exemplary embodiment of the invention.
As shown in fig. 6 to 9, in an exemplary embodiment, the terminal assembly 2 is adapted to be partially inserted into an insulative housing of a connector in an insertion direction, and includes a base 21 and a pair of first terminals 22 which are fabricated independently of each other. The substrate 21 is adapted to be mechanically and electrically connected to the conductors of the cable. For example, the connector attached to the lead of the cable is attached to the base 21 by a connecting member such as a bolt. Each first terminal includes: one first mounting portion 221 mounted on the base body 21, and a plurality of contact portions 222 extending in the longitudinal direction from the first mounting portion 221.
In one embodiment, the base 21 and the first terminal 22 are made of plate-shaped metal having a predetermined thickness, respectively, and the thickness of the base 21 is greater than that of the first terminal 22. In this way, a predetermined width may be left between the two first terminals 22 to receive the bus bar (bar) therebetween. The pair of first terminals 22 are respectively mounted on two opposite surfaces in the thickness direction of the base body 21, so that the first terminals 22 can be stably fixed.
In one embodiment, the terminal assembly further includes a pair of second terminals 23, each second terminal 23 including: a second mounting portion 231 mounted on an outer side of the first mounting portion 221, and a holding portion 232 extending from the second mounting portion 231 to an outer side of the contact portion 222 in the longitudinal direction, the holding portion 232 being provided with a projecting portion 2322 penetrating the contact portion so that the contact portion 222 and the projecting portion 2322 are electrically contacted with the bus bar inserted between the pair of first terminals 22. In this way, the second terminal can increase the clamping force of the first terminal to the bus bar, clamping the bus bar firmly between the pair of first terminals 22. Further, the conductive capability of the terminal assembly may be increased so that the power connector of the embodiments of the present disclosure may transmit a large current, such as a direct current of 150A or more, or an alternating current of 45A or more.
In one embodiment, each first terminal 22 includes a plurality of contact portions 222, and a gap 223 is formed between two adjacent contact portions 222, so that the second terminal 23 can pass through the contact portions 222 through the gap 223.
In the terminal assembly 2 according to the embodiment of the present disclosure, the first terminal 22, the second terminal, and the base body 21 are manufactured separately from each other, that is, the first terminal 22, the second terminal, and the base body 21 are independent from each other. In this way, in the process of manufacturing the first terminal and the second terminal, a plurality of first terminals having continuous contact portions can be manufactured on a single metal plate irrespective of the shape of the base body; on the other hand, a plurality of second terminals having continuous holding portions are formed on another single metal plate; then, cutting the substrate into a first terminal and a second terminal according to the width and the shape of the substrate; thereafter, the plurality of first terminals and the plurality of second terminals are respectively mounted on bases having different shapes and sizes, thereby obtaining terminal assemblies having different functions and current-carrying capabilities. Therefore, in the case of manufacturing terminal assemblies of a plurality of different functions and current-carrying capabilities, the manufacturing cost of these terminal assemblies can be reduced.
Fig. 14 shows a schematic arrangement of the conductive terminals as viewed from the rear side of the power connector.
In one exemplary embodiment, as shown in FIGS. 3-5 and 14, the terminal assemblies include terminal assembly 2 for transmitting DC power signals above 150A, for example, and terminal assembly 3 adapted for transmitting AC power signals above 45A, for example. Further, the terminal assembly adapted to transmit the direct current power signal includes a terminal assembly adapted to be connected to the positive electrode (DC +) and a terminal assembly adapted to be connected to the negative electrode (DC-); the ac terminal adapted to transmit a current power signal includes a terminal assembly adapted to connect to a Live line (Live, L), a terminal assembly adapted to connect to a Neutral line (N), and a terminal assembly 4 adapted to connect to a Protection Earth line (PE). According to the terminal assembly of the embodiment of the present disclosure, the first terminal 22 of the terminal assembly 2 and the first terminal of the terminal assembly 3 having a larger width can be fabricated on one single metal plate, and the second terminal 23 of the terminal assembly 2 and the second terminal of the terminal assembly 3 having a smaller width can be fabricated on another single metal plate.
In one embodiment, the terminal assembly further includes a plurality of sense terminals 5 adapted to communicate information indicative of the operational status of the terminal assembly 2 for transmitting current power signals and the terminal assembly 3 for transmitting current power signals.
In an exemplary embodiment, as shown in fig. 6 to 9, a plurality of rows of mounting through holes 225 and 236 are provided on each of the first mounting portion 221 of the first terminal 22 and the second mounting portion 231 of the second terminal 23, and a plurality of rows of fixing posts 213 are provided on the base body 21, the fixing posts 213 passing through the mounting through holes 225 and 236, respectively, to mount the first terminal 22 and the second terminal 23 on the base body 21 by screwing or caulking so that both the first terminal and the second terminal are electrically connected to the base body 21. In an alternative embodiment, the first terminal and the second terminal are both connected to the base body 21 by laser welding.
In one embodiment, an extension of each of the gaps 223 in the longitudinal direction passes through a column of mounting through holes on the base 21. Thus, after a plurality of first terminals are fabricated on a single piece of sheet metal, the desired first terminal cutouts may be obtained by a cutting and/or bending process at a row of mounting through-holes aligned with the gaps 223, depending on the desired width of the first terminals.
In one embodiment, at least one partition mark 226 aligned with an extension of the at least one gap 223 in the longitudinal direction is provided on the first and second mounting parts 221 and 231, respectively. Thus, after a plurality of first terminals are fabricated on a single piece of metal, the desired first terminal cutouts may be obtained by a cutting and/or bending process at the separation marks aligned with the gaps 223, depending on the desired width of the first terminals. Further, the separation mark includes a score to facilitate the cutting or bending process.
In one embodiment, the first terminal 22 has a conductivity greater than the second terminal 23; the elastic modulus of the first terminal 22 is smaller than the elastic modulus of the second terminal 23; and the thickness of the first terminal 22 is larger than the thickness of the second terminal 23. In this way, it is possible to make the first terminal 22 (made of copper, for example) have good electrical conductivity, while the second terminal 23 (made of stainless steel, for example) has greater rigidity to apply a greater elastic holding force to the first terminal. Further, the second terminal may be made of a less expensive material to reduce the cost of the terminal assembly.
In an exemplary embodiment, as shown in fig. 6 to 9, the holding portion 232 of the second terminal 23 includes a plurality of elastic pieces 2321 spaced apart from each other, a width of a free end of the elastic pieces 2321 is greater than a width of the gap 223 of the first terminal 22, and a recess protruding toward an inner side of the first terminal is provided on the free end, the recess forming the protruding portion 2322, and the protruding portion 2322 is inserted into the gap 223. In this way, the contact face 224 of the contact portion 222 of the first terminal 22 and the contact face 2323 of the projection 2322 of the second terminal 23 can both make electrical contact with the bus bar, increasing the electrical conductivity of the terminal assembly.
Fig. 10 shows a schematic perspective view of a first terminal and a second terminal according to another exemplary embodiment of the present invention.
In an exemplary embodiment, as shown in fig. 10, the holding portion 232 ' of the second terminal 23 ' includes a plurality of elastic pieces 2321 ' spaced apart from each other, a width of a free end of the elastic pieces 2321 ' is greater than a width of the gap 223 ' of the first terminal 22 ', and a recess protruding toward an inner side of the first terminal 22 ' is provided on the free end, the recess forming the protruding portion 2322 ', a contact through hole 2231 is provided on each contact portion 222 ' of the first terminal 22 ', and the protruding portion 2322 ' is inserted into the contact through hole 2231. In this way, the contact surfaces 224 ' of the contact portions 222 ' of the first terminals 22 ' and the contact surfaces of the protruding portions 2322 ' of the second terminals 23 ' can both make electrical contact with the bus bar, increasing the conductive capability of the terminal assemblies.
In an exemplary embodiment, the holding portion of the second terminal includes a plurality of resilient pieces spaced apart from each other, and a free end of the resilient piece has a width smaller than a width of the gap and is bent toward an inner side of the first terminal to form the protruding portion.
In an exemplary embodiment, as shown in fig. 6 to 9, the second terminal 23 is provided at an outer side thereof with a first positioning protrusion 235, and a first positioning groove is provided at an inner wall of the accommodating passage 11 of the insulative housing 1 to be fitted with the first positioning protrusion 235, the first positioning protrusion 235 being provided to prevent the second terminal 22 from being further inserted into the insulative housing 1 in a state where the terminal assembly 2 is inserted into the accommodating passage of the insulative housing 1.
Further, the second terminal 23 is provided at the outer side thereof with a second positioning protrusion 234, and a second positioning groove to be fitted with the second positioning protrusion 234 is provided at the inner wall of the accommodating passage 11 of the insulative housing 1, the second positioning protrusion 234 being provided to prevent the second terminal 22 from being withdrawn from the insulative housing 1 in the case where the terminal assembly 2 is inserted into the accommodating passage of the insulative housing 1.
In an exemplary embodiment, as shown in fig. 6-9, the base 21 includes a fixing portion 211 and a connecting portion 212. The fixing portion 211 extends parallel to the insertion direction, and the first mounting portion 221 of the first terminal 22 and the second mounting portion 231 of the second terminal 23 are mounted on the fixing portion 211. The connection portion 212 extends perpendicular to the fixing portion 211, the connection portion 212 being adapted to be mechanically and electrically connected with a conductor of a cable. For example, the connecting portion 212 is provided with a through hole 214, and the conductor of the cable can be fixed to the connecting portion 212 by a connecting member such as a bolt.
In an exemplary embodiment, as shown in fig. 1, 2 and 6-9, the connection portion 212 is disposed obliquely with respect to the insertion direction. In this way, the connecting portion 212 can be made to protrude outside the insulating housing 1, facilitating connection of a cable for transmitting a direct current signal.
Fig. 11 shows a perspective view of a substrate according to another exemplary embodiment of the present invention.
In an exemplary embodiment, as shown in fig. 1, 2 and 11, the base 31 of the ac line or neutral terminal assembly 3 for transmitting an ac power signal includes a fixing portion 311 and a connecting portion 312. The fixing portion 311 extends parallel to the insertion direction, and the first mounting portion of the first terminal and the second mounting portion of the second terminal are mounted on the fixing portion 311. The connecting portion 312 extends perpendicular to the fixing portion 311, and the connecting portion 312 is adapted to be mechanically and electrically connected with a conductive line of a cable. The connection portion 312 is disposed perpendicularly with respect to the insertion direction. In this way, the connection portion 312 may be allowed to fit into the opening of the insulating housing.
In an exemplary embodiment, as shown in fig. 1, 2 and 11, the connection portion of the base body 41 of the ground terminal assembly 4 for connecting a ground protection wire extends parallel to the insertion direction from the side of the fixing portion opposite to the contact portion 222 of the first terminal 22. That is, in the present embodiment, the fixing portion and the connecting portion of the base 41 are located in the same plane.
In an exemplary embodiment, as shown in fig. 1 to 5, 12 and 13, terminal assemblies 2, 3 and 4 are inserted into the front end (shown in fig. 4) of an insulative housing 1, respectively, and connection parts 21, 31 and 41 of the terminal assemblies are exposed from the front end of the insulative housing 1 to connect the wires of the cable. On the other hand, the first terminals 22, 32, and 42, and the second terminals 23, 33, and 43 of the terminal assemblies 2, 3, and 4 are partially exposed from the rear end (shown in fig. 5) of the accommodation passage 11. Isolating protrusions 13 are provided on the inner wall of the receiving passage 11 between the adjacent terminal assemblies. Bus bars for different terminal assemblies are inserted into the receiving passages from the rear end of the insulative housing 1 to be electrically connected with the corresponding terminal assemblies.
In the terminal assembly and the power connector according to the embodiment of the present disclosure, since the first terminal of the terminal assembly is mounted on the base body, the first terminal and the base body can be manufactured separately from each other. In the process of manufacturing the first terminal and the second terminal, a plurality of first terminals having continuous contact portions may be manufactured on one single metal plate, and a plurality of second terminals having continuous holding portions may be manufactured on the other single metal plate, regardless of the shape of the base; then, cutting the substrate into a first terminal and a second terminal according to the width and the shape of the substrate; thereafter, the plurality of first terminals and the plurality of second terminals are respectively mounted on bases having different shapes and sizes, thereby obtaining terminal assemblies having different functions and current-carrying capabilities. Therefore, in the case of manufacturing a plurality of terminal assemblies having different functions and current-carrying capabilities, the manufacturing cost of these terminal assemblies can be reduced.
It will be appreciated by those skilled in the art that the embodiments described above are exemplary and can be modified by those skilled in the art, and that the structures described in the various embodiments can be freely combined without conflict in structure or principle.
Although the present invention has been described in connection with the accompanying drawings, the embodiments disclosed in the drawings are intended to be illustrative of preferred embodiments of the present invention and should not be construed as limiting the invention.
Although a few embodiments of the present general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the appended claims and their equivalents.
It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude a plurality. Furthermore, any reference signs in the claims shall not be construed as limiting the scope of the invention.

Claims (24)

1. A terminal assembly, comprising:
a substrate;
a pair of first terminals respectively mounted on opposite surfaces of the base, each of the first terminals including:
a first mounting portion mounted on the base; and
at least one contact portion extending from the first mounting portion.
2. The terminal assembly according to claim 1, wherein the base body and the first terminal are respectively made of a plate-shaped metal having a predetermined thickness, and the thickness of the base body is larger than that of the first terminal.
3. The terminal assembly according to claim 1 or 2, wherein the pair of first terminals are respectively mounted on two opposite surfaces in a thickness direction of the base.
4. The terminal assembly according to any one of claims 1-3, further comprising,
a pair of second terminals, each second terminal comprising:
a second mounting portion mounted on an outer side of the first mounting portion; and
and a holding portion extending from the second mounting portion to an outer side of the contact portion, the holding portion being provided with a projection portion penetrating the contact portion so that the contact portion and the projection portion are electrically contacted with a bus bar inserted between the pair of first terminals.
5. The terminal assembly of any one of claims 1-4, wherein each said first terminal includes a plurality of contact portions, adjacent two of said contact portions having a gap therebetween.
6. The terminal assembly according to claim 4 or 5, wherein the base body, the first terminal and the second terminal are fabricated independently of each other.
7. The terminal assembly according to any one of claims 4 to 6, wherein a plurality of rows of mounting through holes are provided on each of the first and second mounting portions, and a plurality of rows of fixing posts are provided on the base body, the fixing posts respectively passing through the mounting through holes to mount the first and second terminals on the base body.
8. The terminal assembly according to any one of claims 4-6, wherein said first and second terminals are mounted on said base body by means of laser welding.
9. The terminal assembly according to any one of claims 5-8, wherein an extension of each of said gaps in a longitudinal direction passes through a column of mounting through-holes on said base body.
10. The terminal assembly according to any one of claims 5 to 9, wherein at least one separation indication aligned with an extension of the at least one gap in the longitudinal direction, respectively, is provided on the first and second mounting parts.
11. The terminal assembly according to any one of claims 4-10,
the electrical conductivity of the first terminal is greater than the electrical conductivity of the second terminal;
an elastic modulus of the first terminal is smaller than an elastic modulus of the second terminal; and
the thickness of the first terminal is greater than the thickness of the second terminal.
12. The terminal assembly according to any one of claims 4-10, wherein the holding portion of the second terminal comprises a plurality of spring plates spaced apart from each other, a free end of the spring plates having a width larger than a width of the gap and being provided with a recess projecting towards an inner side of the first terminal, the recess forming the projecting portion,
each contact portion of the first terminal is provided with a contact through hole into which the protruding portion is inserted.
13. The terminal assembly according to any one of claims 4-10, wherein the holding portion of the second terminal comprises a plurality of spring plates spaced apart from each other, a width of a free end of the spring plate being larger than a width of the gap, and a recess protruding towards an inner side of the first terminal is provided on the free end, the recess forming the protruding portion, the protruding portion being inserted into the gap.
14. The terminal assembly according to any one of claims 4-10, wherein the holding portion of the second terminal comprises a plurality of spring plates spaced apart from each other, a free end of the spring plate having a width smaller than a width of the gap and being bent towards an inner side of the first terminal to form the protruding portion.
15. The terminal assembly according to any one of claims 4-14, wherein an outer side of said second terminal is provided with a first positioning protrusion arranged to prevent further insertion of said second terminal into the insulating housing.
16. The terminal assembly according to any one of claims 4-15, wherein an outer side of the second terminal is provided with a second positioning protrusion arranged to prevent the second terminal from being withdrawn from the insulating housing.
17. The terminal assembly according to any one of claims 4-16, wherein the base body comprises:
a fixing portion on which the first and second mounting portions are mounted; and
a connecting portion extending perpendicular to the fixing portion, the connecting portion being adapted to be mechanically and electrically connected with a conductor of a cable.
18. The terminal assembly according to claim 17, wherein the link is arranged perpendicularly with respect to the longitudinal direction.
19. The terminal assembly according to claim 17, wherein the link is arranged obliquely with respect to the longitudinal direction.
20. The terminal assembly according to claim 17, wherein the connecting portion extends parallel to the longitudinal direction from a side of the fixing portion opposite to the contact portion.
21. A power connector comprising:
a plurality of terminal assemblies according to any of claims 1-20; and
and the insulating shell is provided with a plurality of accommodating channels, and the terminal assemblies are respectively inserted into the accommodating channels.
22. The electrical power connector as recited in claim 21, wherein the terminal assembly comprises a terminal assembly adapted to transmit a dc power signal and a terminal assembly adapted to transmit an ac power signal.
23. The electrical power connector of claim 22, wherein said terminal assembly adapted to carry an ac power signal includes a terminal assembly for connecting to a live wire, a terminal assembly for connecting to a neutral wire, and a terminal assembly for connecting to a protective ground wire.
24. The electrical power connector as recited in claim 22 or 23, wherein the terminal assembly further comprises: a plurality of detection terminals for transmitting signals representing the operating states of the terminal assembly for transmitting the current power signal and the terminal assembly for transmitting the current power signal.
CN201811653508.6A 2018-12-29 2018-12-29 Terminal assembly and power connector Active CN111384614B (en)

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