CN108666793B - Electric connector and electric connection assembly - Google Patents
Electric connector and electric connection assembly Download PDFInfo
- Publication number
- CN108666793B CN108666793B CN201710199071.2A CN201710199071A CN108666793B CN 108666793 B CN108666793 B CN 108666793B CN 201710199071 A CN201710199071 A CN 201710199071A CN 108666793 B CN108666793 B CN 108666793B
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- electrical connection
- connection assembly
- piece
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- 230000013011 mating Effects 0.000 claims abstract description 77
- 230000000903 blocking effect Effects 0.000 claims description 26
- 239000007769 metal material Substances 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 1
- 239000000741 silica gel Substances 0.000 claims 1
- 229910002027 silica gel Inorganic materials 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000006056 electrooxidation reaction Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000008376 long-term health Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The invention discloses an electric connector and an electric connection assembly. The electrical connector includes a first connector, a second connector, and a retainer. The first connecting member includes a first connecting portion and a first protruding end portion integrally connected to each other. The second connecting member includes a second connecting portion and a second protruding end portion integrally connected to each other. The second connecting piece and the first connecting piece are respectively independent forming pieces. The retainer is interconnected with the first connector and the second connector as a single piece. The second connection portion is electrically connected with the first connection portion. The first protruding end portion protrudes from the holder for electrical connection with the first mating connector. The second protruding end portion protrudes from the holder for electrical connection with a second mating connector. The electric connector can be applied to various occasions as a modularized assembly, and has extremely high universal flexibility.
Description
Technical Field
The present invention relates to an electrical connection structure, and more particularly, to an electrical connector and an electrical connection assembly for electrically connecting battery cells.
Background
The electric connector can realize electric connection between different electronic components. The matching and assembling relationship between the electric connection component and other components directly affects the assembling efficiency and the connecting stability of the whole electric connection component. Particularly in the electric connection assembly which needs to adopt a large amount of electric connection elements to realize electric connection, how to realize convenient assembly and stable connection of the electric connection elements is a problem which needs to be considered particularly. For example, how to reduce the production cost of an electrical connection assembly, and to enhance the stable electrical connection performance, such as an electrical connection assembly applied to a battery cell of an electric vehicle, plays an important role in long-term health development of the electric vehicle.
Disclosure of Invention
One of the purposes of the present invention is to overcome the shortcomings in the prior art, and to provide an electrical connector and an electrical connection assembly which are highly versatile, stable in connection and long in service life.
In order to achieve the above purpose, the present invention is realized by the following technical scheme:
The invention provides an electric connector. The electrical connector includes a first connector, a second connector, and a retainer. The first connecting member includes a first connecting portion and a first protruding end portion integrally connected to each other. The second connecting member includes a second connecting portion and a second protruding end portion integrally connected to each other. The second connecting piece and the first connecting piece are respectively independent forming pieces. The retainer is interconnected with the first connector and the second connector as a single piece. The second connection portion is electrically connected with the first connection portion. The first protruding end portion protrudes from the holder for electrical connection with the first mating connector. The second protruding end portion protrudes from the holder for electrical connection with a second mating connector.
Preferably, the first connecting piece and the second connecting piece are made of different metal materials. The second connecting part is welded with the first connecting part.
Preferably, the first connecting piece is an aluminum integral piece and is used for being electrically connected with a first pair of matched connecting pieces of an aluminum structure; and/or
The second connecting piece is a copper integrated piece and is used for being electrically connected with a second pair of matched connecting pieces of a copper structure.
Preferably, the first connector further comprises a connection body. The first connecting part and the first protruding end part are respectively arranged at two ends of the connecting body.
Preferably, at least part of one end of the connecting body protrudes from the first protruding end along the radial direction of the first connecting piece. A supporting step is arranged between the first protruding end part and the connecting body. The support step may be used to support the first mating connector.
Preferably, the second connection portion is provided with a connection hole. The connecting hole is surrounded by a hole wall. The first connecting portion is inserted into the connecting hole and is in contact electrical connection with at least one of the hole wall, the upper surface of the second connecting portion and the lower surface of the second connecting portion.
Preferably, the free end of the first connection portion is provided with a blocking wall. The blocking wall protrudes in the radial direction of the first connecting part, and can be matched with the second connecting part in a blocking way along the axial direction of the first connecting part.
Preferably, the blocking wall is welded integrally with the second connection portion.
Preferably, the side wall of the second connecting portion is provided with an extending portion protruding in the radial direction of the connecting hole. The extension part extends along the circumferential direction of the connecting hole and protrudes out of the side wall of the second connecting part.
Preferably, the second protruding end is a press-fit end to be press-fit electrically connectable with the second mating connector.
Preferably, the first connecting portion and the second connecting portion are disposed in contact and form a joint edge. The retainer is disposed around the engagement edge.
Preferably, the holder is provided so as to wrap around the first connecting portion and the second connecting portion.
Preferably, the holder is a watertight seal.
Preferably, the retainer is an injection molded piece, a silicone cured integral piece, or a rubber integral piece.
Preferably, the retainer, the first connector and the second connector are constructed as an insert injection molded integral piece; wherein the first connection portion of the first connection member and the second connection portion of the second connection member are inserts.
Preferably, the electrical connector is used in a battery pack to electrically connect a bus bar and a circuit board. The first protruding end portion may be electrically connected with a bus bar. The second protruding end portion may be electrically connected to a circuit board.
The invention also provides an electric connection assembly. The electrical connection assembly includes a first pair of mating connectors, a second pair of mating connectors, and an electrical connector as described in any of the preceding claims. The first mating connector is electrically connected with the first protruding end portion of the first connector. The second mating connector is electrically connected with the second protruding end portion of the second connector.
Preferably, the first mating connector is a busbar. The busbar and the first protruding end part are made of the same metal material and are welded into a whole.
Preferably, the second protruding end and the second mating connector have the same metal material and are in piezoelectric and electrical connection with the second mating connector.
Preferably, the second mating connector is provided with a mounting hole. The retainer is provided with a mounting post in a protruding manner. The mounting posts and the second protruding end part extend in the same direction and are arranged at intervals. At least a portion of the mounting post is received within the mounting hole.
Preferably, the second mating connector is a circuit board.
Preferably, the electrical connection assembly further comprises a support frame. The electric connector is arranged on the supporting frame.
Preferably, the support frame comprises a slot front end wall, a slot side wall, a slot rear end wall and a slot bottom wall. The front end wall, the side wall and the rear end wall of the groove form a mounting groove. The retainer is accommodated in the mounting groove.
Preferably, at least one of said groove side walls is provided with a stop arm. The stop arm projects into the mounting recess and can be arranged in blocking engagement with the holder.
Preferably, one or both side walls of the holder are provided with a blocking step. The blocking step may be arranged in blocking engagement with the stop arm.
Preferably, the slot front end wall and the slot rear end wall are spaced apart in the longitudinal direction of the holder. The spacing between the slot rear end wall and the stop arm is greater than or equal to the longitudinal length of the retainer.
Preferably, the support frame further comprises a support cantilever, and a free end of the support cantilever is provided with a backstop. The retaining portions are spaced from the slot front end wall and are respectively disposed in blocking engagement with the retainer.
Preferably, the support cantilever extends continuously from the rear end wall of the trough and is spaced from the trough bottom wall. The retaining part is arranged on the supporting cantilever in a protruding mode.
Preferably, the first pair of mating connectors are disposed on the support frame. The first mating connector is electrically connected to the first protruding end portion of the first connector and is operable to be electrically connected to a battery cell.
Preferably, the second mating connector is disposed on the support frame. The second mating connector is electrically connected with the second protruding end part of the second connector
Compared with the prior art, the electric connector can be applied to various occasions as a modularized assembly, is selected according to the required number and the matched positions, and has extremely high universal flexibility. Moreover, the electric connector does not need to be matched with other matched structures in advance, so that the manufacturing and design difficulties are reduced, and the manufacturing cost is saved. Particularly, when a plurality of electric connectors and a mating structure are required to be assembled into a whole, the electric connectors adopting single modularization can avoid the accumulation of assembly tolerance to greatly increase the assembly difficulty and avoid the damage to the whole structure and the electric connection stability caused by the stress generated by assembly among the electric connectors. The retaining member not only enhances the safety and stable electric connection performance between the first connecting member and the second connecting member, but also ensures that the electric connecting members are stably and integrally maintained. In particular, when the first connecting piece and the second connecting piece are connected with different metals, the retainer can avoid electrochemical corrosion of the connecting part of the first connecting piece and the second connecting piece, and the service life is greatly prolonged.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of an electrical connector according to the present invention.
Fig. 2 is a schematic projection view of the electrical connector of fig. 1.
Fig. 3 is a cross-sectional view of the electrical connector of fig. 2 taken along line A-A.
Fig. 4 is a cross-sectional view of the electrical connector of fig. 2 taken along line B-B.
Fig. 5 is a schematic structural diagram of the first connecting member and the second connecting member in fig. 1.
Fig. 6 is a schematic structural view of the first connector in fig. 1.
Fig. 7 is a schematic structural view of the second connector in fig. 1.
Fig. 8 is a schematic structural view of another embodiment of an electrical connector according to the present invention.
Fig. 9 is a schematic structural view of an electrical connection assembly including the electrical connector shown in fig. 8 according to the present invention.
Fig. 10 is a schematic structural view of the first mating connector shown in fig. 9.
Fig. 11 is a schematic structural view of the second mating connector shown in fig. 9.
Fig. 12 is a perspective partial cross-sectional view of an electrical connection assembly including the electrical connector shown in fig. 1, provided by the present invention.
Fig. 13 is a perspective partial cross-sectional view of the support bracket shown in fig. 12.
Detailed Description
The invention is described in detail below with reference to the attached drawing figures:
Embodiment one:
Please refer to fig. 1 to 4, which illustrate an electrical connector 101 according to the present invention. The electrical connector 101 may be used in a battery module (not shown) and may be electrically connected to a bus bar and a circuit board, respectively, as one embodiment of the connector. The electrical connector 101 includes a first connector 10 and a second connector 30 that are in contact electrical connection with each other, and a holder 50 that sealingly encloses the first connector 10 and the second connector 30.
Referring to fig. 5 and 6, the first protruding end portion 12 protrudes from the holder 50. The first protruding end portion 12 is used for electrically connecting a first pair of mating connectors 60 described below. The specific shape and structure of the first protruding end portion 12 may be sufficient to meet the corresponding electrical connection requirements. In this embodiment, the first protruding end 12 has a radial dimension smaller than the connecting body 15. The first protruding end portion 12 forms a supporting step 13 with the connection body 15. The first protruding end portion 12 may be inserted into the connection through hole 68 of the first pair of the mating connection members 60 and connected with the first pair of the mating connection members 60. Specifically, the first protruding end portion 12 may be welded integrally with the first mating connector 60. The support step 13 is used for supporting the first mating connector 60. That is, when the first protruding end portion 12 is inserted into the corresponding connection through hole 68, the supporting step 13 protrudes the wall of the connection through hole 68, so that the first mating connector 60 can be supported. The specific shape and size of the first protruding end portion 12 may be any shape and size that can be connected. In this embodiment, for facilitating the plugging, the first protruding end 12 is cylindrical. In this embodiment, the connection body 15 is also cylindrical. Accordingly, the support step 13 is a circular step in order to provide a stable and uniform support for the first mating connector 60. That is, the support step 13 extends around one end of the first connector 10 for a full turn.
The first connection portion 16 is connected to the connection body 15. The first connection portion 16 is in contact electrical connection with the second connection member 30. The specific shape and structure of the first connection portion 16 may be any shape and structure as long as the electrical connection is achieved. In this embodiment, in order to enhance the stable connection performance of the first connector 10 and the second connector 30, the first connector 16 is riveted to the second connector 30. Specifically, the first connecting portion 16 is inserted into the connecting hole 36 of the second connecting member 30. The free end of the first connecting portion 16 is provided with a blocking wall 17 protruding. The blocking wall 17 may be disposed in blocking engagement with the second connection 64. Further, the blocking wall 17 is a riveted structure. The blocking wall 17 is disposed to extend in a radial direction of the connection hole 36 and is in contact with the bottom surface 30a of the second connection member 30. In order to enhance the uniform and stable holding performance, the blocking wall 17 is disposed around the entire circumference of the connection hole 36. The first connection portion 16 may be disposed to contact the wall of the connection hole 36. In order to further enhance the stable connection performance of the first connecting member 10 and the second connecting member 30, the first connecting member 10 is welded to the second connecting member 30. Specifically, after the blocking wall 17 is riveted to the bottom surface 30a of the second connecting member 30, it is laser welded.
The specific materials and components of the first connector 10 only need to be able to achieve corresponding electrical connection. To facilitate the connection with the corresponding components, the first connector 10 is constructed of the same metal material as the first mating connector 60. Specifically, in the present embodiment, the first connecting member 10 is of an aluminum structure. To facilitate manufacturing and to enhance stability, the first connector 10 is a single piece. The first connecting member 10 extends axially in a columnar shape as a whole.
Referring to fig. 7, the second connector 30 is in contact electrical connection with the first connector 10. The second connector 30 includes a second protruding end portion 32. The second protruding end 32 protrudes from the holder 50. The second protruding end portion 32 may be electrically connected to a second mating connector 70 described below. The specific shape and configuration of the second protruding end portion 32 are sufficient to enable the corresponding electrical connection. In this embodiment, in order to improve the assembly efficiency and the stable electrical connection performance of the second connector 30 and the second mating connector 70, the second protruding end portion 32 is a press-fit terminal. That is, the second protruding end portion 32 is electrically connected to the second mating connector 70 by press-fitting (english name: press fit). The specific number of second protruding ends 32 is selected as desired. In the present embodiment, a pair of the second projecting end portions 32, 32b are respectively press-fit connected with the second mating connector 70, and are disposed at a distance from each other.
The second connector 30 further includes a second connector portion 34. The second connecting portion 34 is for supporting the second protruding end portion 32. The second connection portion 34 is electrically connected to the first connection member 10. Specifically, the second connection portion 34 is provided with a connection hole 36. The connecting hole 36 may be a through hole or a blind hole. In this embodiment, the connection hole 36 is a circular through hole. In order to increase the mechanical strength of the second connecting portion 34, both side walls of the second connecting portion 34 are provided with extension portions 38, 38b. The extensions 38, 38b are provided protruding around the connection hole 36. In this embodiment, the second connection portion 34 is substantially L-shaped plate-like. The second protruding end portion 32 protrudes in the same direction as the first protruding end portion 12, and is disposed at a distance.
The connecting hole 36 is surrounded by a hole wall. The hole wall may be in contact electrical connection with the first connection portion 16 of the first connector 30. Of course, in order to enhance the electrical connection performance, the upper and/or lower surfaces of the second connection portion 34 are in contact electrical connection with the second connection portion 16. To facilitate assembly, the walls of the holes are provided with notches (not numbered in the figures). In this embodiment, a pair of notches are disposed opposite to each other along the length direction of the second connecting portion 34.
To facilitate manufacturing and to promote mechanical strength, the second connector 30 is a single piece. The specific material of the second connecting member 30 may be sufficient to meet the corresponding electrical connection requirement. In this embodiment, in order to facilitate electrical connection with the second mating connector 70, the second connector 30 is of a second metal structure. Specifically, the second connector 30 is made of the same metal copper material as the copper foil of the second counter connector 70.
In order to improve the sealing electrical connection performance, the first connection portion 16 of the first connector 10 and the second connection portion 34 of the second connector 30 are disposed in contact, and form joint edges 25, 25b, 25c. The joining edges 25, 25b, 25c, i.e. the connection of two contacts, start to separate the dividing lines. In order to improve the sealing, waterproof and corrosion-resistant properties of the joint edges 25, 25b, 25c, the holder 50 is arranged around the joint edges 25, 25b, 25c. In this embodiment, three of the engagement edges 25, 25b, 25c enclose a groove shape. Wherein the first connecting portion 16 and the second connecting portion 34 are disposed in contact with each other in the up-down direction, and the joint edges 25, 25c are formed in the up-down direction. The hole wall surrounding the connecting through hole 34 on the peripheral side is in contact with a part of the first connecting portion 16 to form the joint edge 25b.
The holder 50 serves to seal at least the connection portions of the first and second connection members 10 and 30. In the present embodiment, the retainer 50 wraps the connection through hole 34 of the first projecting end portion 12 and the second connecting member 30. The holder 50 is a waterproof sealing structure capable of preventing moisture from contacting the connection portion of the first and second connectors 10 and 30, thereby preventing electrochemical corrosion. Particularly, in the case where electrochemical corrosion is easily increased by the connection between different metals when the first connector 10 and the second connector 30 are made of different metal materials, the protection performance of the holder 50 is excellent.
The specific material and construction of the retainer 50 is sufficient to meet the corresponding seal retaining requirements. The retainer 50 is an injection molded part for ease of manufacture, easy obtaining of a predetermined shape, and good sealing and protecting performance. Further, the retainer 50, the first connector 10 and the second connector 30 are integrally injection molded. Wherein, the connection part of the first connector 10 and the second connector 30 is an insert (i.e. an insert). That is, the connection portion of the first connector 10 and the second connector 30 is previously placed in a mold, and then the holder 50 is sealed and wrapped around the connection portion of the first connector 10 and the second connector 30 by injection molding. As a variant, the holder 50 may also be of a silicone-cured structure. Or the holder 50 may be a rubber-cured structure or the like that can seal and hold the connection portion of the first connector 10 and the second connector 30. The specific shape of the retainer 50 is only required to meet the corresponding application requirements. In this embodiment, the retainer 50 is generally rectangular block-shaped. To facilitate a secure mounting to a corresponding mounting structure, such as a support bracket 80 described below, the two side walls of the retainer 50 are provided with limiting portions 52. In this embodiment, the limiting portion 52 is stepped. Of course, the limiting portion 52 may be a holding structure such as a buckle, depending on the application.
Embodiment two:
Referring to fig. 8, as a modification of the first embodiment, another electrical connector 101b is provided in the present invention. Unlike the first embodiment, the electrical connector 101b includes a holder 50b different from the holder 50 described in the first embodiment.
The specific shape of the retainer 50b is selected as desired. In this embodiment, the holding body 50b has a substantially rectangular block shape. To facilitate the connection of the electrical connector 101b as a whole to the second counter connector 70 described below, the holder 50 further comprises a mounting post 58. The mounting posts 58 are provided protruding from the retaining body 54. The mounting posts 58 may be inserted into the mounting holes 74 of the second mating connector 70 to provide support for a secure mechanical connection of the electrical connector 101b to the second mating connector 70. To facilitate assembly, the mounting posts 58 are protruding in the same direction as the first protruding ends 32, 32b of the second connector 30. To further facilitate assembly, the mounting posts 58 are provided in a protruding manner as compared to the first protruding ends 32, 32b, so that the electrical connector 101b can be preassembled on the second mating connector 70. The first projecting ends 32, 32b are then press fit into the mating holes 72 on the second mating connector 70 as needed. In this embodiment, the mounting post 58 is an injection molded one piece with the retention body 54. The specific shape and configuration of the mounting post 58 is sufficient for a satisfactory connection support. To facilitate plugging, the mounting post 58 is cylindrical. In order to provide corresponding guidance such that the first protruding ends 32, 32b of the second connector 30 are accurately press-fit into the corresponding pair of mating holes 72 of the second mating connector 70, a pair of the mounting posts 58, 58b are spaced apart to avoid deflection of the electrical connector 101 b. The mounting posts 58 can be provided without other support structures, such as the support 80 described below.
Embodiment III:
Referring to fig. 9, the present invention provides an electrical connection assembly 103b. The electrical connection assembly 103b includes a first pair of mating connectors 60, a second pair of mating connectors 70, and the electrical connector 101 described in embodiment one or the electrical connector 101b described in embodiment two. In this embodiment, the electrical connection assembly 103b includes the electrical connector 101b described in the second embodiment. Accordingly, the first connector 10 is electrically connected to the first mating connector 60. The second connector 30 is electrically connected to the second counter connector 70. In order to enhance the stability and maintain the integrity during assembly, the mounting posts 58 are inserted into mounting holes 74 of a second mating connector 70 described below.
Referring to fig. 10, the first mating connector 60 is used for electrically connecting the first connector 10 and a battery cell (not shown). The first mating connector 60 is only required to be able to make a corresponding electrical connection. In this embodiment, in order to enhance the high-current transmission performance, the specific shape and specification of the first mating connector 60 is selected according to the application requirement, and the first mating connector 60 is a bus bar (english name: bus-bar). In this embodiment, the first mating connector 60 includes a mating body 62 and a connecting arm 64. The mating body 62 has a substantially rectangular plate shape. The mating body 62 is configured to electrically connect with a battery cell. To make full use of space and facilitate electrical connection, the connection arms 64 protrude from the counter body 62. In order to enhance the vibration-resistant performance of the connecting arm 64, the connecting arm 64 is of an elastically deformable structure. Specifically, the connecting arm 64 extends in an "S" shape. That is, grooves are provided on both sides of the connection arm 64, respectively. The connecting arm 64 extends substantially in the same plane as the mating body 62. The first mating connector 60 may be made of a material that can achieve a corresponding electrical connection. In this embodiment, the first mating connector 60 is of aluminum material. Specifically, the first pair of mating connectors 60 are made of aluminum plate as a single piece. The connecting arm 64 is provided with a connecting through hole 68. The connecting through hole 68 is for receiving the first projecting end portion 12. In this embodiment, the connection via 68 is a solder via. That is, the first mating connector 60 is welded to the first projecting end portion 12 integrally when the first projecting end portion 12 is inserted into the connecting through hole 68.
Referring to fig. 11, the second mating connector 70 is connected to the second protruding end 32. In this embodiment, to facilitate the transmission of the electrical signal, the second mating connector 70 is a circuit board (generally referred to as Printed Circuit Board in english, abbreviated as PCB). The second mating connector 70 may be used to carry corresponding electronic components (not shown) and may also transmit corresponding electrical signals, currents, etc. According to different application requirements, the corresponding temperature, current and voltage parameters of the battery core can be obtained by arranging a temperature sensor, a current detection component and a voltage detection component on the second matched connection piece 70. In order to achieve a corresponding mating connection, the second mating connector 70 is provided with a mating hole 72. The mating hole 72 is for connection with the second protruding end portion 32. The second mating connector 70 is provided with mounting holes 74. The mounting holes 74 are for receiving the mounting posts 58. The mounting holes 74 may be blind holes or through holes, provided that the depth and bore diameter are sufficient for connection to the mounting posts 58. In this embodiment, the mounting hole 74 is a through hole in order to obtain a larger moving space. The second mating connector 70 includes a component surface 70a and a soldering surface 70b disposed opposite to each other. The second mating connector 70 is arranged with the element face 70a facing the holding body 10 when connected to the second connector 30. The second protruding end portion 32 is electrically connected by copper foil welding extending from the element surface 70a side to the welding surface 70b.
Embodiment four:
referring to fig. 12, the present invention further provides an electrical connection assembly 103. To facilitate the provision of other mating components to enhance universal performance, the electrical connection assembly 103 may also include a support bracket 80. The support frame 80 may be used to support the electrical connector 101 (or 101 b). Of course, the support bracket 80 may also support the first mating connector 60 and/or the second mating connector 70, as desired. The specific shape and structure of the support 80 may be sufficient to meet the corresponding support requirements. In this embodiment, the lead frame (english name: LEAD FRAME) of the supporting frame 80.
Referring to fig. 13, in order to firmly support the electrical connector 101 (or 101 b), the support frame 80 has a mounting slot 84. Specifically, the mounting groove 84 is provided on the upper surface 80a of the support frame 80. The mounting groove 84 may be provided to accommodate the holder 50. The support bracket 80 includes a slot front end wall 84a, a slot rear end wall 84d, a pair of slot side walls 84b, 84c, and a slot bottom wall 84e. The front slot end wall 84a, rear slot end wall 84d, and a pair of slot side walls 84b, 84c enclose the mounting slot 84. The number and specific distribution of the mounting slots 84 is selected according to the application requirements.
In order to further secure the electrical connector 101 to the support frame 80, the one or both of the slot side walls 84b, 84c are provided with stop arms 86 protruding therefrom. In this embodiment, a pair of the stopper arms 86, 86b are provided so as to protrude in opposite directions (i.e., face to face). The stop arms 86 may be in blocking engagement with the retainer 50 in the depth direction of the mounting slot 84. The pair of slot side walls 84b, 84c and/or the stop arm 86 may be deformed to enable the retainer 50 to be received into the mounting slot 84. To facilitate installation of the retainer 50, the mounting slot 84 has a length that is greater than the length of the retainer body 50. Specifically, the distance from the slot rear end wall 84b to the stop arm 86 may be greater than or equal to the retainer 50. Specifically, the stop arm 86 is disposed in blocking engagement with the stop 52 of the retainer 50.
To further firmly hold the electrical connector 101, the support 80 further comprises a stop 87. The retaining portion 87 is provided in the mounting groove 84 and protrudes in the protruding direction of the second protruding end portion 32. The retaining portions 87 are spaced from the groove front end wall 84a so as to be capable of respectively retaining the holders 50. The stop 87 prevents the retainer 50 from backing out or loosening from the insertion direction when the retainer 50 is inserted into the mounting slot 84 and is in blocking engagement with the stop arm 86. In order to facilitate the attachment and detachment of the holder 50, the retaining portion 87 is provided so as to be reciprocally movable in the protruding direction of the second protruding end portion 32. The retaining portion 87 may be an elastically deformable structure so as to be reciprocally disposed therealong. In the present embodiment, the stopper 87 is provided to protrude from a support cantilever 88 described below.
In order to simplify the construction of the retaining portion 87 and facilitate the reciprocal movement, the support 80 further comprises a support cantilever 88. The support cantilever 88 extends continuously from the slot rear end wall 84 d. The support cantilever 88 is spaced apart from the mounting groove 84 so as to have a reciprocating space. The support cantilever 88 is of an elastically deformable structure, so as to be reciprocally movable.
In order to increase the reciprocating space of the supporting cantilever 88 without increasing the thickness of the supporting frame 80, the bottom 84e of the mounting groove 84 is provided with a relief hole 89. The relief hole 89 is disposed opposite to the support cantilever 88 and can accommodate the support cantilever 88. In order to obtain a larger space as soon as possible, the relief holes 89 are through holes.
In order to facilitate the manufacture of the support 80 and to obtain a stable mechanical strength, the support 80 is a single piece. Specifically, the support 80 is an injection molded part. In this embodiment, the supporting member 80 and the electrical connecting members 101 and 101b are formed independently, so that the electrical connecting members 101 and 101b are prevented from being used as inserts to be injection-molded with the supporting member 80 into an integral piece, thereby not only improving the general performance, but also reducing the manufacturing difficulty, avoiding the supporting member 80 from generating larger stress, and reducing the requirements on the die and the process.
In order to facilitate understanding of the relative spatial positional relationship of the respective components, the terms "left and right", "front and rear", "up and down", and the like are employed in the present invention with respect to each other. Wherein, both sides in fig. 2 are left and right, i.e. transverse. Accordingly, the longitudinal direction is the up-down direction in fig. 2. The upper and lower surfaces of the second connection portion 34 are two surfaces in the up-down direction in fig. 3 and 4.
The above is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions or improvements within the spirit of the present invention are intended to be covered by the claims of the present invention.
Claims (24)
1. An electrical connection assembly, comprising:
an electrical connector, the electrical connector comprising:
a first connecting member including a first connecting portion and a first protruding end portion connected integrally with each other;
A second connecting member including a second connecting portion and a second protruding end portion connected integrally with each other, the second connecting portion being electrically connected with the first connecting portion; the second connecting piece and the first connecting piece are respectively independent forming pieces; and
The retaining piece is mutually connected with the first connecting piece and the second connecting piece to form an integral piece, and one side wall or two side walls of the retaining piece are provided with blocking steps;
Wherein each of said electrical connectors has a single said holder, a single said first connector and a single said second connector, such that said electrical connectors having a single said holder, a single said first connector and a single said second connector form a single modular assembly; and
The electric connector is arranged on the support frame, the support frame comprises a groove front end wall, a groove side wall, a groove rear end wall, a groove bottom wall and a support cantilever, the support cantilever extends continuously from the groove rear end wall and is arranged at intervals with the groove bottom wall, the groove front end wall, the groove side wall and the groove rear end wall enclose a mounting groove, the retainer is accommodated in the mounting groove, a retaining part is arranged at the free end of the support cantilever, and the retaining part is arranged on the support cantilever in a protruding mode;
Wherein, at least one side wall of the groove is provided with a stop arm which protrudes into the mounting groove and can be matched with the stop step in a blocking way,
Wherein the retaining portions are spaced from the slot front end wall and are respectively disposed in blocking engagement with the retainer;
The first protruding end portion protrudes from the holder for electrical connection with a first pair of mating connectors;
The second protruding end portion protrudes from the holder for electrical connection with a second mating connector.
2. The electrical connection assembly of claim 1, wherein:
the first connecting piece and the second connecting piece are of different metal material structures;
the second connecting part is welded with the first connecting part.
3. The electrical connection assembly of claim 1, wherein:
The first connecting piece is an aluminum integrated piece and is used for being electrically connected with a first pair of matched connecting pieces of an aluminum structure; and/or
The second connecting piece is a copper integrated piece and is used for being electrically connected with a second pair of matched connecting pieces of a copper structure.
4. The electrical connection assembly of claim 1, wherein:
the first connector further comprises a connecting body;
the first connecting part and the first protruding end part are respectively arranged at two ends of the connecting body.
5. The electrical connection assembly of claim 4, wherein:
At least one end of the connecting body is arranged at the first protruding end part along the radial protruding direction of the first connecting piece;
A supporting step is arranged between the first protruding end part and the connecting body;
The support step may be used to support the first mating connector.
6. The electrical connection assembly of claim 1, wherein:
the second connecting part is provided with a connecting hole;
The connecting hole is surrounded by a hole wall;
The first connecting portion is inserted into the connecting hole and is in contact electrical connection with at least one of the hole wall, the upper surface of the second connecting portion and the lower surface of the second connecting portion.
7. The electrical connection assembly of claim 6, wherein:
the free end of the first connecting part is provided with a blocking wall;
the blocking wall protrudes in the radial direction of the first connecting part, and can be matched with the second connecting part in a blocking way along the axial direction of the first connecting part.
8. The electrical connection assembly of claim 7, wherein:
The blocking wall is welded with the second connecting portion integrally.
9. The electrical connection assembly of claim 6, wherein:
The side wall of the second connecting part is provided with an extending part in a protruding manner along the radial direction of the connecting hole;
The extension part extends along the circumferential direction of the connecting hole and protrudes out of the side wall of the second connecting part.
10. The electrical connection assembly of claim 1, wherein:
the second protruding end part is a press-fit end and can be in press-fit power distribution connection with the second pair of matched connecting pieces.
11. The electrical connection assembly of claim 1, wherein:
the first connecting part and the second connecting part are in contact and form a joint edge;
The retainer is disposed around the engagement edge.
12. The electrical connection assembly of claim 1, wherein:
The holder is provided so as to wrap the first connecting portion and the second connecting portion.
13. The electrical connection assembly of claim 1, wherein:
the retainer is a waterproof sealing structure.
14. The electrical connection assembly of claim 1, wherein:
The retainer is an injection molding piece, a silica gel curing integrated piece or a rubber integrated piece.
15. The electrical connection assembly of claim 1, wherein:
The retainer, the first connecting piece and the second connecting piece are constructed as an embedded injection molding integrated piece; wherein the first connection portion of the first connection member and the second connection portion of the second connection member are inserts.
16. The electrical connection assembly of any one of claims 1 to 15, wherein:
the electric connector is used in the battery pack to electrically connect the busbar and the circuit board;
the first protruding end portion may be electrically connected to a busbar;
The second protruding end portion may be electrically connected to a circuit board.
17. The electrical connection assembly of claim 1, further comprising: the first mating connector and the second mating connector.
18. The electrical connection assembly of claim 17, wherein:
The first pair of matched connectors are buses; the busbar and the first protruding end part are made of the same metal material and are welded into a whole.
19. The electrical connection assembly of claim 17, wherein:
The second protruding end and the second matching connecting piece are made of the same metal material and are connected with the second matching connecting piece in a pressing and power distribution mode.
20. The electrical connection assembly of claim 17, wherein:
The second pairing connecting piece is provided with a mounting hole;
The retainer is provided with a mounting column in a protruding mode;
the mounting posts and the second protruding end part extend in the same direction and are arranged at intervals;
At least a portion of the mounting post is received within the mounting hole.
21. The electrical connection assembly of claim 17, wherein:
the second pair of matched connectors are circuit boards.
22. The electrical connection assembly of claim 1, wherein:
The front end wall and the rear end wall of the groove are arranged at intervals along the longitudinal direction of the retainer;
The spacing between the slot rear end wall and the stop arm is greater than or equal to the longitudinal length of the retainer.
23. The electrical connection assembly of claim 1, wherein:
the first pair of matched connecting pieces are arranged on the supporting frame and can be used for being electrically connected with the battery core.
24. The electrical connection assembly of claim 1, wherein:
The second pairing connection piece is arranged on the supporting frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710199071.2A CN108666793B (en) | 2017-03-29 | 2017-03-29 | Electric connector and electric connection assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710199071.2A CN108666793B (en) | 2017-03-29 | 2017-03-29 | Electric connector and electric connection assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108666793A CN108666793A (en) | 2018-10-16 |
| CN108666793B true CN108666793B (en) | 2024-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710199071.2A Active CN108666793B (en) | 2017-03-29 | 2017-03-29 | Electric connector and electric connection assembly |
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| CN (1) | CN108666793B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102020103133B3 (en) * | 2020-02-07 | 2020-12-31 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Front cowling of a motor vehicle and motor vehicle |
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Also Published As
| Publication number | Publication date |
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| CN108666793A (en) | 2018-10-16 |
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