Conductive terminal, electric connector and electric connection assembly

Abstract

The utility model discloses a conductive terminal, an electric connector and an electric connection assembly. The conductive terminal comprises a conductive connecting piece, a first conductive piece and a second conductive piece. The first conductive part is of a pipe structure, and the second conductive part is of a pipe structure or a stamping structure formed by stamping a pipe. The first conductive piece is fixedly connected with the conductive connecting piece, the second conductive piece is fixedly connected with the conductive connecting piece, and the conductive connecting piece is arranged between the first conductive piece and the second conductive piece. According to the utility model, an innovative combined type terminal structure is adopted, the terminal is formed by assembling three conductive parts, and the first conductive part and the second conductive part which are used for electrical connection are combined by using the conductive connecting part.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical connectors, and particularly relates to a conductive terminal, an electrical connector and an electrical connection assembly. Background Art

[0002] Electrical connectors are widely used in various industrial fields, such as vehicle connectors in automotive electronic and electrical architectures, and energy storage connectors in photovoltaic power generation systems, grid energy storage systems, and charging piles. An electrical connector generally includes a plastic housing and terminals installed in the housing. After the terminals are inserted into the housing, the front and rear ends are respectively electrically connected to other conductors through appropriate wiring techniques (for example, the front end of the terminal is inserted into a mating terminal, or the rear end of the terminal is crimped to a wire or connected by bolts).

[0003] The demand for electrical connectors is increasing day by day. Correspondingly, the usage amount of terminals is large. Taking the terminal structure of an energy storage connector as an example, it generally includes the structure and processing schematic diagram of a conductive terminal shown as follows. As shown in the terminal processing process, currently, the structure of this type of conductive terminal 1 is made by machining a solid copper column through turning or other methods. For the existing solid terminal structure, generally, a copper column with a larger diameter needs to be cut, resulting in low material utilization rate and complex processing technology. Figure 1 As shown in the following, Figure 1 As shown in the terminal processing process, currently, the structure of this type of conductive terminal 1 is made by machining a solid copper column through turning or other methods. For the existing solid terminal structure, generally, a copper column with a larger diameter needs to be cut, resulting in low material utilization rate and complex processing technology.

[0004] Therefore, it is necessary to develop a new type of conductive terminal with an improved structure to solve the problem of low material utilization rate due to the need to use more materials to manufacture existing conductive terminals. Summary of the Utility Model

[0005] In order to overcome the technical defect that the existing terminal structure needs to use more materials for manufacturing and has a low material utilization rate, the utility model provides a conductive terminal, an electrical connector and an electrical connection assembly.

[0006] To solve the above problems, the utility model is implemented according to the following technical solutions:

[0007] In a first aspect, the utility model provides a conductive terminal for an electrical connector, comprising:

[0008] A conductive connecting piece;

[0009] A first conductive piece, the first conductive piece being a pipe structure;

[0010] A second conductive piece, the second conductive piece being a pipe structure or a stamping structure formed by stamping a pipe;

[0011] Wherein, the first conductive member and the conductive connecting member are fixedly connected, the second conductive member and the conductive connecting member are fixedly connected, and the conductive connecting member is disposed between the first conductive member and the second conductive member.

[0012] Combined with the first aspect, the present invention further provides a first preferred embodiment of the first aspect, specifically:

[0013] The first conductive member has a straight pipe connecting portion and a plurality of elastic contact arms which are of an integral structure, and the plurality of elastic contact arms are connected to the end of the straight pipe portion;

[0014] Wherein, the straight pipe portion is used for fixedly connecting with the conductive connecting member; the plurality of elastic contact arms are evenly spaced and arranged in the circumferential direction of the straight pipe connecting portion.

[0015] Combined with the first aspect, the present invention further provides a second preferred embodiment of the first aspect, specifically, the conductive terminal includes:

[0016] An insulating end cap, the end of the insulating end cap has a plurality of buckle arms, and the outer side wall of the buckle arm has a claw portion;

[0017] Wherein, a buckle groove is formed on the inner side wall of the elastic contact arm; the plurality of buckle arms are inserted into the cavity formed by enclosing of the plurality of elastic contact arms, and the claw portions of the plurality of buckle arms are correspondingly placed into the buckle grooves of the plurality of elastic contact arms to buckle and limit the insulating end cap at the end of the first conductive member.

[0018] Combined with the first aspect, the present invention further provides a third preferred embodiment of the first aspect, specifically, the conductive terminal includes:

[0019] An insulating end cap, the insulating end cap is connected to the first conductive member;

[0020] Wherein, the insulating end cap is welded and fixed at the end of the first conductive member; or,

[0021] The insulating end cap is an injection molded part formed by injection molding on the first conductive member, the insulating end cap has a filling part filled in the lumen of the first conductive member and a contact part formed outside the end of the first conductive member; or,

[0022] The end of the insulating end cap has a plurality of buckle arms, and the outer side wall of the buckle arm has a claw portion; a buckle groove is formed on the inner side wall of the first conductive member, the plurality of buckle arms are inserted into the lumen of the first conductive member, and the claw portions of the plurality of buckle arms are correspondingly placed into the buckle groove of the first conductive member to buckle and limit the insulating end cap at the end of the first conductive member.

[0023] Combined with the first aspect, the present utility model also provides a fourth preferred embodiment of the first aspect, specifically:

[0024] The second conductive member is a stamping structure formed by stamping a pipe, and the second conductive member has a tubular connection portion and a flattened portion formed by stamping;

[0025] Wherein, the tubular connection portion is fixedly connected to the conductive connection member, and the flattened portion is used for electrical connection.

[0026] Combined with the first aspect, the present utility model also provides a fifth preferred embodiment of the first aspect, specifically:

[0027] A perforation structure is provided in the flattened portion of the second conductive member; or,

[0028] A perforation structure is provided in the flattened portion of the second conductive member, and the conductive terminal includes a press riveting nut, and the press riveting nut is riveted and fixed in the perforation structure; or,

[0029] A perforation structure is provided in the flattened portion of the second conductive member, and the conductive terminal includes a wire insert, and the wire insert is fixedly connected in the perforation structure; or,

[0030] The flattened portion of the second conductive member has an injection molding cavity and an injection molded body filled in the injection molding cavity; a perforation structure is provided in the flattened portion; the conductive terminal includes a wire insert, wherein the wire insert is disposed through the perforation structure, and the injection molded body wraps the outer peripheral wall of the wire insert located in the injection molding cavity, and fixes the wire insert in the perforation structure.

[0031] Combined with the first aspect, the present utility model also provides a sixth preferred embodiment of the first aspect, specifically:

[0032] The second conductive member is a pipe structure, and the second conductive member has a tubular connection portion and a tubular wiring portion;

[0033] Wherein, the tubular connection portion is fixedly connected to the conductive connection member; the tubular wiring portion is used for connecting a wire, and the tubular wiring portion is a tubular structure formed by locally expanding the diameter of the pipe of the second conductive member.

[0034] Combined with the first aspect, the present utility model also provides a seventh preferred embodiment of the first aspect, specifically:

[0035] The conductive connection member has a flattened connection member body, and a first positioning portion and a second positioning portion are respectively disposed at both ends of the connection member body;

[0036] Among them, the first conductive member is sleeved on the first positioning portion of the conductive connecting member; the second conductive member has a tubular connecting portion, and the second conductive member is sleeved on the second positioning portion of the conductive connecting member through the tubular connecting portion;

[0037] The first conductive member and the conductive connecting member are fixed by welding, and the second conductive member and the conductive connecting member are fixed by welding.

[0038] In a second aspect, the present utility model further provides an electrical connector, and the electrical connector includes the conductive terminals according to the first to seventh preferred embodiments of the first aspect and the first invention.

[0039] In a third aspect, the present utility model further provides an electrical connection assembly, including a first electrical connector and a second electrical connector. The first electrical connector and the second electrical connector are matingly plugged to achieve electrical connection, and the first electrical connector and / or the second electrical connector has the conductive terminals according to the first to seventh preferred embodiments of the first aspect and the first invention.

[0040] Compared with the prior art, the beneficial effects of the present utility model are:

[0041] The present utility model provides a conductive terminal for an electrical connector. The conductive terminal includes a conductive connecting member, a first conductive member, and a second conductive member. The first conductive member is a pipe structure, and the second conductive member is a pipe structure or a stamping structure formed by stamping a pipe. The first conductive member and the conductive connecting member are fixedly connected, the second conductive member and the conductive connecting member are fixedly connected, and the conductive connecting member is disposed between the first conductive member and the second conductive member.

[0042] This patent adopts an innovative combined terminal structure, which is assembled by three conductive components. A conductive connecting member is used to combine two first conductive members and a second conductive member for electrical connection.

[0043] Among them, the first conductive member adopts a pipe structure. Compared with the cylindrical end of the existing terminal structure, under the same size specifications, the hollow inner cavity of the pipe structure can reduce the material used and lower the cost. This technology directly utilizes the pipe structure. Compared with the existing terminal structure obtained by cutting a copper column by machining, this patent can greatly reduce a large amount of waste materials generated by the cutting process, thereby improving the material utilization rate and saving the manufacturing cost.

[0044] The second conductive member can also adopt a pipe structure, producing the same effect as the first conductive member. On the other hand, the second conductive member can also adopt a stamping structure formed by stamping a pipe. The stamping structure does not require a large amount of cutting of copper column materials by the cutting process in the prior art. The required specification dimensions can be obtained by stamping the pipe, relatively reducing the manufacturing materials.

[0045] Through a conductive connecting piece, the first conductive piece and the second conductive piece are fixedly connected, and the finally assembled conductive terminal structure can greatly reduce the manufacturing materials, reduce the cutting waste, or even eliminate the cutting waste, so as to improve the material utilization rate. This cannot be achieved by the terminal structure of the existing electrical connectors. For the conductive terminal adopting such an assembly structure, the conductive piece is a pipe, the incoming material is simple and convenient, and the material used is significantly reduced, so the cost is lower.

[0046] The present utility model also provides an electrical connector, which includes the above-mentioned conductive terminal and also has the corresponding beneficial effects of the conductive terminal.

[0047] The present utility model also provides an electrical connection assembly, in which the first electrical connector and / or the second electrical connector has the above-mentioned conductive terminal and also has the corresponding beneficial effects of the conductive terminal. Description of the Drawings

[0048] The following further describes in detail the specific embodiments of the present utility model with reference to the drawings, where:

[0049] Figure 1 It is a schematic structural diagram and a processing schematic diagram of a pin terminal of an electrical connector in the prior art;

[0050] Figure 2 It is a schematic structural diagram of the conductive terminal of the first embodiment of the present utility model;

[0051] Figure 3 It is an assembly schematic diagram of the conductive terminal of the first embodiment of the present utility model;

[0052] Figure 4 It is a schematic structural diagram and an assembly schematic diagram of the conductive terminal with an insulating end cap of the first embodiment of the present utility model;

[0053] Figure 5 It is a cross-sectional schematic diagram of the conductive terminal with an insulating end cap of the first embodiment of the present utility model;

[0054] Figure 6 It is a schematic structural diagram of the conductive terminal with a hemispherical insulating end cap of the first embodiment of the present utility model;

[0055] Figure 7 It is a structural and assembly schematic diagram of the conductive terminal with an insulating end cap formed by injection molding in the first embodiment of the present utility model;

[0056] Figure 8 It is an assembly schematic diagram of the second conductive piece provided with an injection cavity and an injection body in the first embodiment of the present utility model;

[0057] Figure 9It is a cross-sectional schematic diagram of the second conductive member provided with an injection cavity and an injection body in the first embodiment of the present utility model;

[0058] Figure 10 It is a structural schematic diagram of the conductive terminal in the second embodiment of the present utility model;

[0059] Figure 11 It is an assembly schematic diagram of the conductive terminal in the second embodiment of the present utility model;

[0060] Figure 12 It is a structural schematic diagram and an assembly schematic diagram of the conductive terminal with a tubular connection part and an insulating end cap in the second embodiment of the present utility model;

[0061] Figure 13 It is a cross-sectional schematic diagram of the conductive terminal with a tubular connection part and an insulating end cap in the second embodiment of the present utility model;

[0062] Figure 14 It is a cross-sectional schematic diagram of the conductive terminal with a flat part and an insulating end cap in the second embodiment of the present utility model;

[0063] In the figure:

[0064] 100 - Conductive terminal;

[0065] 110 - First conductive member, 111 - Straight pipe connecting part, 112 - Elastic contact arm, 1121 - Clamping groove;

[0066] 120 - Second conductive member, 121 - Tubular connecting part, 122 - Tubular connection part, 123 - Flat part, 124 - Injection body;

[0067] 130 - Conductive connecting piece, 131 - Connecting piece body, 132 - First positioning part, 133 - Second positioning part;

[0068] 140 - Rivet nut;

[0069] 150 - Wire insert;

[0070] 160 - Insulating end cap, 161 - Buckle arm, 1611 - Claw part. Detailed implementation manners

[0071] The following is a description of the preferred embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for explaining and illustrating the present utility model and are not used to limit the present utility model.

[0072] The following will clearly describe the technical solutions in the embodiments of the present application in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope of protection of the present application.

[0073] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time.

[0074] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used in the specification of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0075] The following will describe in detail some embodiments of the present application in conjunction with the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0076] Embodiment 1

[0077] First, refer to Figure 2 , Figure 4 , Figure 6 and Figure 7 to describe the schematic structural diagram of the conductive terminal according to the embodiment of the present application.

[0078] As Figure 2 shown, the conductive terminal 100 for the electrical connector adopts a combined structure and is assembled by fixedly connecting three conductive components. Specifically, the conductive terminal includes a conductive connecting member 130, a first conductive member 110, and a second conductive member 120. The conductive terminal of this patent combines two first conductive members and a second conductive member for electrical connection by using a conductive connecting member.

[0079] Figure 3 shows the specific shape structure and assembly position relationship of the conductive terminal. Among them, the first conductive member is a pipe structure, and the second conductive member is a pipe structure or a stamping structure formed by stamping a pipe. The first conductive member is fixedly connected to the conductive connecting member, the second conductive member is fixedly connected to the conductive connecting member, and the conductive connecting member is arranged between the first conductive member and the second conductive member.

[0080] In the present patented technology, the conductive connecting piece, the first conductive piece, and the second conductive piece are preferably made of the same metal material, such as copper, aluminum, etc. In a specific implementation, the conductive connecting piece, the first conductive piece, and the second conductive piece are all made of copper material. It can be understood that the first conductive piece is a copper pipe, and the second conductive piece can be a copper pipe or a stamping structure formed by stamping a copper pipe.

[0081] In the present patented technology, the fixed connection can be welding, pressing and fixing, etc. In a preferred implementation, the connection between the conductive connecting piece, the first conductive piece, and the second conductive piece is preferably welding, and specifically, laser welding, high-frequency welding, and ultrasonic metal welding can be used for fixed connection.

[0082] It can be understood that when both the first conductive piece 110 and the second conductive piece 120 are pipe structures, the first conductive piece and the second conductive piece are a hollow round pipe with both ends penetrating when they come in, which is a metal pipe. Preferably, the first conductive piece and the second conductive piece are preferably metal pipes formed by extrusion molding. Extrusion molding is to heat and melt the material and then extrude it through a mold. This type of metal pipe also does not have cutting processing and does not waste raw materials. Metal pipes formed by stretching can also be used.

[0083] In this embodiment, the first conductive piece is a hollow round pipe with both ends penetrating. The first conductive piece has two ends along its own axis, and one of the ends is used for welding to the conductive connecting piece; the outer peripheral wall of the first conductive piece is used for contacting and conducting electricity to achieve electrical connection of the electrical connector.

[0084] In the field of electrical connectors, the pin terminal has a variety of usage scenarios. The first is to use the pin (column structure, such as Figure 1 the cylindrical end in) of the pin terminal to be inserted and mated with the jack terminal. Second, a threaded hole is provided at the end of the column structure of the pin terminal to provide an installation structure, and it is connected in the electrical connector through a bolt and used as one of the conductive components of the electrical connector.

[0085] Based on the above description, the first conductive piece of the first embodiment is configured to be used in a similar manner to the pin terminal 1 shown in Figure 1 Specifically, in the conductive terminal, the first conductive piece is equivalent to the pin (column structure, such as Figure 1 the cylindrical end in) of the jack terminal 1. In some application scenarios, the first conductive piece of the conductive terminal can be used to be inserted and mated with the jack terminal, or as the installation structure of the conductive terminal for fixed connection in the electrical connector.

[0086] In a preferred embodiment, the conductive terminal further includes an insulating end cap 160. The insulating end cap is connected to the end of the first conductive member, and the end of the first conductive member where the insulating end cap is located is not used for welding with the conductive connecting member. The purpose of the insulating end cap is to prevent electric shock. By installing an insulating end cap at the end of the conductive terminal, it can prevent a person's finger from touching the conductive terminal. In some cases, the insulating end cap can also prevent some metal tools from reaching in and touching the outer peripheral wall of the first conductive member.

[0087] In a specific embodiment, the insulating end cap is made of insulating plastic, and the insulating end cap and the first conductive member can be welded and combined by means such as ultrasonic welding.

[0088] In a specific embodiment, a fastening groove 1121 is formed on the inner side wall of the first conductive member. The fastening groove can be an annular groove formed by machining and is formed on the inner side wall of the lumen of the first conductive member. As Figure 4 shown, the end of the insulating end cap 160 has a plurality of snap arms 161, and the outer side wall of the snap arms 161 has a claw portion 1611. A fastening groove is formed on the inner side wall of the first conductive member. The plurality of snap arms are inserted into the lumen of the first conductive member, and the claw portions of the plurality of snap arms are correspondingly placed into the fastening groove of the first conductive member to fasten and limit the insulating end cap at the end of the first conductive member. In this specific embodiment, a snap-fit combination structure is adopted to install the insulating end cap.

[0089] In a specific embodiment, the insulating end cap 160 is an injection-molded part formed on the first conductive member 110. The insulating end cap has a filling part filled in the lumen of the first conductive member and a contact part formed outside the end of the first conductive member. The contact part exposed outside the first conductive member can adopt a columnar structure or a hemispherical structure.

[0090] The purpose of using injection molding for the insulating end cap is mainly for application in conductive terminals with smaller sizes. Due to the small size specifications of the conductive terminals, considering the comprehensive cost and ensuring the current-carrying capacity, the size of the circular tube and the wall thickness of the circular tube of the first conductive member are both small, which will result in weak strength of the first conductive member and the above-mentioned snap-fit structure cannot be adopted either, because it is difficult to machine the above-mentioned fastening groove with a small wall thickness of the circular tube. Therefore, by using an injection-molded insulating end cap, the insulating end cap has a filling part filled in the lumen of the first conductive member. On the one hand, it realizes the combination of the insulating end cap and the first conductive member, and on the other hand, it can strengthen the overall strength of the first conductive member to meet the usage requirements.

[0091] It should be noted that the insulating end cap is not an essential component, and the conductive terminal can still be used normally without the insulating end cap.

[0092] In the present technology, regarding the second conductive member, the present patent provides two specific implementation manners:

[0093] In the first implementation, the second conductive member 120 is a tubular structure. It is understandable that the second conductive member is a hollow round tube with two ends passing through it, which is a metal tube.

[0094] Specifically, Figure 12 , Figure 13 A second conductive member structure is shown, the second conductive member has a tubular connecting portion 121 and a tubular wiring portion 122; wherein the tubular connecting portion and the conductive connecting member are fixedly connected by welding. The tubular wiring portion is used to connect the wire, and the tubular wiring portion is a tubular structure formed by expanding the diameter of a local tube of the second conductive member. In a specific application scenario, the conductive terminal can be fixedly connected to the wire by inserting the wire into the tubular wiring portion of the second conductive member and pressing or welding.

[0095] It should be noted that the tubular connection portion is the original part of the pipe. The tubular connection portion is a tubular structure formed by partially expanding the diameter of the pipe, that is, the outer diameter of the tubular connection portion is greater than the outer diameter of the tubular connection portion.

[0096] In the known technology in this field, diameter expansion refers to a process of increasing the local diameter of a pipe by mechanical processing. There are two main types of diameter expansion processes: mechanical diameter expansion and hydraulic diameter expansion. Mechanical diameter expansion is the expansion of a pipe by using a special mechanical tool, such as an expander or an expansion die. Hydraulic diameter expansion is the expansion of a pipe by using the pressure generated by a hydraulic device. The diameter expansion process usually causes a significant change in the diameter of the pipe, which can be judged by the following appearance characteristics: (1) Diameter change: The diameter of the expanded part is usually larger than that of other parts, and there may be obvious expansion marks at the transition point. (2) Pipe wall thickness: During the diameter expansion process, the wall thickness of the expanded part may change, and the wall thickness of the expanded part may be slightly thinner than that of the non-expanded part. Ultrasonic detection can be used: Ultrasonic waves can detect changes in the internal structure of the material, and the expanded part may have different sound wave reflection characteristics due to deformation.

[0097] The tubular connection part of the conductive terminal 100 of this embodiment is a tubular structure formed by expanding the diameter of a local tubular material. The conductive terminal structure has a high material utilization rate. The diameter expansion process can maximize the use of raw materials during the processing process and reduce the generation of waste, thereby improving the material utilization rate and ensuring the integrity of the structure. The diameter expansion process is to form a uniformly deformed tubular part: the diameter expansion process makes the tube material evenly stressed during the diameter expansion process, which can effectively avoid stress concentration and improve the mechanical properties of the tubular connection part.

[0098] In the second implementation, if Figure 2 , Figure 3 As shown, the second conductive member is a stamped structure formed by stamping a tube.

[0099] Specifically, the second conductive member 120 has a tubular connection portion 121 and a flattened portion 123 formed by stamping; wherein, the tubular connection portion is fixedly welded to the conductive connection member. The flattened portion is used for electrical connection.

[0100] It should be noted that the tubular connection portion is an original part of the pipe material, and the flattened portion is a flat plate-like structure formed by stamping and deforming a part of the pipe material. It can be understood that the second conductive member in this embodiment is a round pipe when it comes in, which is a kind of metal pipe material, and the flattened portion can be formed by stamping a part of the round pipe.

[0101] In the application scenario of electrical connection of the flattened portion of the conductive terminal, the flattened portion is configured to be used in a manner similar to the flattened end of the pin terminal 1 shown. Specifically, the flattened portion of the conductive terminal can be used to connect other components in the electrical connector, such as wires and cables to achieve electrical connection, and the flattened portion can also be used as a structural part for fixedly installing the conductive terminal in the electrical connector. Figure 1 In the prior art known to those skilled in the art, stamping is a metal processing method. By using a die on a punching press to apply pressure to the metal material, plastic deformation is generated to obtain a workpiece with the required shape and size. The stamping process has the advantages of high production efficiency, low cost, and stable quality, so it has been widely used in industrial production. The flattened portion of the conductive terminal in this embodiment is formed by stamping, and it does not require a large amount of cutting of copper column material using the cutting process in the prior art, improving the material utilization rate.

[0102] In the specific application scenarios of installation and electrical connection of the electrical connector, the flattened portion of the second conductive member is provided with a perforation structure, and the perforation structure is configured as an installation structure for the conductive terminal to fixedly connect other components.

[0103] In other embodiments, as shown in

[0104] In other embodiments, such as Figure 3 、 Figure 4 and Figure 7 shown, the flattened portion of the second conductive member is provided with a perforation structure, and the conductive terminal includes a press riveting nut 140, and the press riveting nut is riveted and fixed in the perforation structure of the flattened portion.

[0105] In other embodiments, the flattened portion of the second conductive member is provided with a perforation structure, and the conductive terminal includes a wire screw insert, and the wire screw insert is fixedly connected in the perforation structure of the flattened portion; or,

[0106] In other embodiments, such as Figure 7 and Figure 8As shown, the flat portion of the second conductive member 120 has an injection cavity and an injection body 124 filled in the injection cavity. The flat portion is provided with a perforated structure; the conductive terminal includes a wire insert 150. Among them, the wire insert is disposed through the perforated structure of the flat portion, and the injection body wraps the outer peripheral wall of the wire insert located in the injection cavity, fixing the wire insert in the perforated structure.

[0107] It can be understood that the injection cavity can be obtained by using a stamping die and process parameters during the forming process of the second conductive member in the stamping process. The flat portion is formed by the tight overlap of the tube walls of the second conductive member. There is a gap reserved between the tube walls of the second conductive member, and this gap forms the injection cavity.

[0108] The design purpose of the injection cavity and the injection body is mainly applied to conductive terminals with smaller sizes. Due to the smaller size specifications of the conductive terminals, considering the comprehensive cost and ensuring the current-carrying capacity, the size of the round tube and the wall thickness of the round tube of the second conductive member are relatively small, which will result in a small thickness of the flat portion formed by the second conductive member, not meeting the size requirements, or having problems such as weak strength and easy deformation, or being unable to install a wire insert or a press-fit nut. Therefore, by reserving an injection cavity on the flat portion and filling the injection body in the injection cavity, on the one hand, it can realize the installation and fixation of the wire insert, and on the other hand, it can strengthen the overall strength of the flat portion of the second conductive member to meet the usage requirements.

[0109] The above-mentioned perforated structure, press-fit nut and wire insert are all functional components used for the installation of the conductive terminal, assembly with other components, and electrical connection.

[0110] In a specific implementation, the conductive terminal includes an insulating end cap, a conductive connecting member, a first conductive member and a second conductive member. The first conductive member is a pipe structure; the second conductive member is a stamping structure formed by stamping a pipe. Among them, the first conductive member and the conductive connecting member are fixedly connected, the second conductive member is fixedly connected with the conductive connecting member, and the conductive connecting member is disposed between the first conductive member and the second conductive member. The insulating end cap is an injection molded part formed by injection molding on the first conductive member. The insulating end cap has a filling portion filled in the lumen of the first conductive member and a contact portion formed outside the end of the first conductive member. The second conductive member is a stamping structure formed by stamping a pipe, and the second conductive member has a tubular connecting portion and a stamping formed flat portion; among them, the tubular connecting portion is fixedly connected with the conductive connecting member, and the flat portion is used for electrical connection. The flat portion of the second conductive member has an injection cavity and an injection body filled in the injection cavity. The flat portion is provided with a perforated structure; the conductive terminal includes a wire insert. Among them, the wire insert is disposed through the perforated structure, and the injection body wraps the outer peripheral wall of the wire insert located in the injection cavity, fixing the wire insert in the perforated structure. The above-mentioned conductive terminal is suitable for manufacturing small terminals with smaller size specifications.

[0111] Figure 3Shows a preferred structure of a conductive connector. The conductive connector 130 has a flat connector body 131. The main function of the conductive connector is to serve as an intermediate connecting piece between the first conductive piece and the second conductive piece. Therefore, it is preferably used with components having a small thickness and a small overall volume. This can better reduce the copper consumption of the entire conductive terminal and meet the requirements of combined assembly.

[0112] In a preferred embodiment, a first positioning portion 132 and a second positioning portion 133 are respectively provided at both end portions of the connector body. Among them, the first conductive piece is sleeved on the first positioning portion of the conductive connector; the second conductive piece has a tubular connecting portion, and the second conductive piece is sleeved on the second positioning portion of the conductive connector through the tubular connecting portion.

[0113] In an example of this patent, as Figure 5 shown, both the first positioning portion and the second positioning portion are short cylindrical structures integrally formed on the connector body. Through the mutual engagement of the first positioning portion and the first conductive piece, and through the mutual engagement of the first positioning portion and the first conductive piece, the positioning and assembly of the conductive connector, the first conductive piece, and the second conductive piece are realized.

[0114] It can be understood that by inserting the lumen of the first conductive piece onto the positioning portion of the connector body, and by inserting the tubular connecting portion of the second conductive piece onto the positioning portion of the connector body, it is convenient for positioning and welding, and it is also used to strengthen and reinforce the welding structure between the components, and it can also ensure the coaxiality of the first conductive piece and the second conductive piece.

[0115] In a preferred embodiment, the first positioning portion and the first conductive piece adopt an interference fit. The tolerance control of this interference fit needs to reach that before welding the first conductive piece and the conductive connector, the first conductive piece can be limited and inserted on the conductive connector, and the two will not slide relative to each other and separate. Under a certain external force, the first conductive piece and the conductive connector can be separated.

[0116] In a preferred embodiment, the second positioning portion and the second conductive piece adopt an interference fit. The tolerance control of this interference fit needs to reach that before welding the second conductive piece and the conductive connector, the second conductive piece can be limited and inserted on the conductive connector, and the two will not slide relative to each other and separate. Under a certain external force, the second conductive piece and the conductive connector can be separated.

[0117] Embodiment 2

[0118] First refer to Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 and Figure 14, a schematic structural diagram of a conductive terminal according to an embodiment of the present application is described. It should be noted that the terminal components, structures, etc. of the second embodiment are the same as those of the first embodiment. The difference is that the second embodiment provides a first conductive member structure that is optimized and improved on the basis of the first embodiment.

[0119] As Figure 10 shown, the conductive terminal 100 for an electrical connector adopts a combined structure and is assembled by fixedly connecting three conductive components. Specifically, the conductive terminal includes a conductive connector, a first conductive member, and a second conductive member. The conductive terminal of this patent combines two first conductive members and a second conductive member for electrical connection by using a conductive connector.

[0120] In the second embodiment, the specific structures of the conductive connector and the second conductive member are the same as those described in the first embodiment.

[0121] As Figure 10 , Figure 11 and Figure 12 shown, the first conductive member has a straight tube connecting portion 111 with an integral structure and a plurality of elastic contact arms 112, and the plurality of elastic contact arms are connected to the end of the straight tube connecting portion; wherein, the straight tube connecting portion is used for fixedly connecting with the conductive connector; the plurality of elastic contact arms are evenly spaced in the circumferential direction of the straight tube connecting portion.

[0122] In this technology, the outer side walls of the elastic contact arms are all used for contacting and conducting electricity to achieve electrical connection.

[0123] In the field of electrical connectors, pin terminals have a variety of usage scenarios, including using the pins (column structures, such as Figure 1 the cylindrical end in) of the pin terminals to be inserted and mated with socket terminals. Based on the above description, the first conductive member of the second embodiment is configured to be used in a similar manner to the pin terminal 1 shown in Figure 1 . Specifically, in the conductive terminal, the first conductive member is equivalent to the pin (column structure, such as Figure 1 the cylindrical end in) of the socket terminal 1. In some application scenarios, the plurality of elastic contact portions of the first conductive member of the conductive terminal can be used for mating and inserting into socket terminals for electrical connection.

[0124] In a preferred embodiment, the conductive terminal may further include an insulating end cap 160, and the end of the insulating end cap has a plurality of snap arms 161, and the outer side wall of the snap arm has a claw portion 1611.

[0125] It should be noted that the insulating end cap is not an essential component, and the conductive terminal can still be used normally without the insulating end cap.

[0126] Among them, a fastening groove 1121 is formed on the inner side wall of the elastic contact arm 112; a plurality of snap arms are inserted into the cavity formed by surrounding of a plurality of elastic contact arms, and the claw portions of the plurality of snap arms are correspondingly placed into the fastening grooves of the plurality of elastic contact arms, so as to fasten and limit the insulating end cap at the end of the first conductive member.

[0127] In a specific implementation, a cross-shaped cutting groove is formed by stamping and blanking the end of the pipe to form 4 elastic contact arms.

[0128] In another preferred implementation, it is necessary to first expand the diameter of the end of the first conductive member to form a flared end, and a cross-shaped cutting groove is formed by stamping and blanking the end of the pipe to form 4 elastic contact arms. The purpose is to make the outer diameter of the end where the elastic contact arms are formed larger than the straight pipe connection part, so as to ensure that when the plurality of elastic contact arms formed by subsequent stamping are inserted and used, they have good elasticity to closely contact the inner wall of the insertion structure.

[0129] Due to the diameter expansion process, the outer diameter of the pin formed by the first conductive member of the conductive terminal is relatively large. If directly inserted and paired, it may damage other components inserted and paired with the conductive terminal of this patent. For example, it will increase wear, cause damage to the jack of the electrical connector, and reduce the user experience during use. Therefore, in this embodiment, the insulating end cap also has a good protection effect because it is the insulating end cap that first contacts the surface of other components.

[0130] Embodiment III

[0131] Embodiment III provides a first electrical connector. The electrical connector includes a pin terminal, and the pin terminal is the conductive terminal in Embodiment I or Embodiment II. The conductive terminal can be used as a pin terminal in the electrical connector, a conductive component adapted to be connected with a jack terminal; or can be directly used as a conductive component in the electrical connector.

[0132] Embodiment III also provides a second electrical connector. The electrical connector includes the conductive terminal of Embodiment I or Embodiment II, and the conductive terminal is used as one of the components for electrical connection.

[0133] In the present utility model, an electric connector is a device used to achieve electrical connection and disconnection, and is widely used in various electronic devices and systems. Its main function is to provide a pluggable connection point for signal transmission and power supply. There are many types of electric connectors, which can be divided into various types according to different application scenarios, structural forms and functional requirements. For example, vehicle connectors in the electrical architecture of new energy vehicles, and energy storage connectors for photovoltaic power generation systems, grid energy storage systems, and charging piles.

[0134] In this field, it is a special connector used in the electrical systems of electric vehicles (EVs) and hybrid electric vehicles (HEVs). These connectors are used to connect power batteries, charging devices, electric motors, and various control modules to ensure efficient transmission of electricity and signals. Due to the special requirements of new energy vehicles, these connectors need to have higher electrical performance, safety, and environmental adaptability. Energy storage connectors are electrical connectors specifically designed for energy storage systems, usually applied in battery systems, renewable energy systems such as solar and wind energy, and other devices that require electrical energy storage and conversion. Energy storage connectors play a key role in these systems, ensuring efficient transmission of electrical energy, secure connection, and reliable operation of the system.

[0135] The electrical connector defined by the present utility model may also be an electrical connector used in other industries and is not limited to the above-mentioned electrical connector.

[0136] Embodiment Four

[0137] Embodiment Four provides an electrical connection assembly, including a first electrical connector and a second electrical connector. The first electrical connector and the second electrical connector are matingly plugged together to achieve electrical connection. The first electrical connector and / or the second electrical connector has the conductive terminals described in Embodiment One or Embodiment Two.

[0138] For other structures of the conductive terminal, electrical connector, and electrical connection assembly described in this embodiment, reference may be made to the prior art.

[0139] As mentioned above, these are only the preferred embodiments of the present utility model and do not impose any formal limitations on the present utility model. Therefore, any modifications, equivalent changes, and decorations made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A conductive terminal for an electrical connector, characterized in that: include: Conductive connectors; A first conductive member, wherein the first conductive member is a tubular structure; A second conductive member, wherein the second conductive member is a tube structure or a stamped structure formed by stamping a tube; The first conductive member is fixedly connected to the conductive connecting member, the second conductive member is fixedly connected to the conductive connecting member, and the conductive connecting member is arranged between the first conductive member and the second conductive member.

2. A conductive terminal according to claim 1, characterized in that: The first conductive member has a straight tube connection portion and a plurality of elastic contact arms of an integrated structure, and the plurality of elastic contact arms are connected to the ends of the straight tube connection portion; Wherein, the straight tube connection portion is used for fixed connection with the conductive connection piece; and a plurality of elastic contact arms are evenly spaced and arranged in sections in the circumferential direction of the straight tube connection portion.

3. A conductive terminal according to claim 2, characterized in that: include: An insulating end cap, wherein the end of the insulating end cap has a plurality of buckle arms, and the outer side walls of the buckle arms have buckle claws; Among them, the inner side wall of the elastic contact arm is formed with a snap-fit ​​groove; the multiple snap-fit ​​arms are inserted into the cavity formed by the multiple elastic contact arms, and the snap-fit ​​claws of the multiple snap-fit ​​arms are correspondingly placed in the snap-fit ​​grooves of the multiple elastic contact arms to snap-fit ​​and limit the insulating end cap to the end of the first conductive member.

4. A conductive terminal according to claim 1, characterized in that: include: An insulating end cap connected to the first conductive member; Wherein, the insulating end cap is welded and fixed on the end of the first conductive member; or, The insulating end cap is an injection-molded part formed on the first conductive member, and the insulating end cap has a filling portion filled in the first conductive member lumen and a contact portion formed outside the end of the first conductive member; or, The end of the insulating end cap has a plurality of snap arms, and the outer wall of the snap arm has a snap claw portion; the inner wall of the first conductive member is formed with a snap groove, and the plurality of snap arms are inserted into the tubular cavity of the first conductive member, and the snap claw portions of the plurality of snap arms are correspondingly placed in the snap groove of the first conductive member to snap-fit ​​and limit the insulating end cap to the end of the first conductive member.

5. A conductive terminal according to claim 1, characterized in that: The second conductive member is a stamped structure formed by stamping a tube, and the second conductive member has a tubular connecting portion and a stamped flat portion; Wherein, the tubular connecting portion and the conductive connecting piece are fixedly connected, and the flat portion is used for electrical connection.

6. A conductive terminal according to claim 5, characterized in that: The flat portion of the second conductive member is provided with a perforated structure; or, The flat portion of the second conductive member is provided with a perforated structure, and the conductive terminal comprises a rivet nut, and the rivet nut is riveted and fixed in the perforated structure; or, The flat portion of the second conductive member is provided with a perforated structure, and the conductive terminal comprises a wire screw sleeve, and the wire screw sleeve is fixedly connected to the perforated structure; or, The flat portion of the second conductive part has an injection molding cavity and an injection molding body filled in the injection molding cavity, and the flat portion is provided with a perforated structure; the conductive terminal includes a wire screw sleeve, wherein the wire screw sleeve is penetrated through the perforated structure, and the injection molding body wraps the outer peripheral wall of the wire screw sleeve located in the injection molding cavity to fix the wire screw sleeve in the perforated structure.

7. A conductive terminal according to claim 1, characterized in that: The second conductive member is a tubular structure, and the second conductive member has a tubular connecting portion and a tubular connecting portion; The tubular connecting portion is fixedly connected to the conductive connecting piece; the tubular wiring portion is used to connect the conductive wire, and the tubular wiring portion is a tubular structure formed by expanding the diameter of a local tubular material of the second conductive piece.

8. A conductive terminal according to claim 1, characterized in that: The conductive connector has a flat connector body, and a first positioning portion and a second positioning portion are respectively provided at both side ends of the connector body; Wherein, the first conductive member is sleeved on the first positioning portion of the conductive connector; the second conductive member has a tubular connecting portion, and the second conductive member is sleeved on the second positioning portion of the conductive connector through the tubular connecting portion; The first conductive member and the conductive connecting member are fixed by welding, and the second conductive member and the conductive connecting member are fixed by welding.

9. An electrical connector, characterized in that: The electrical connector comprises the conductive terminal according to any one of claims 1 to 8.

10. An electrical connection assembly, comprising a first electrical connector and a second electrical connector, wherein the first electrical connector and the second electrical connector are mated and plugged together to achieve electrical connection, characterized in that: The first electrical connector and / or the second electrical connector has the conductive terminal according to any one of claims 1 to 8.

Images