Terminal body, connector terminal, and sheet material for manufacturing terminal body

Abstract

To provide a terminal body, a connection terminal and a sheet material for manufacturing a terminal body, to achieve: the electrical connection of a core of a wire to both a first wiring plate and a second wiring plate; an improvement in conductivity and current-carrying performance of a wiring portion; and, by the stacking arrangement of the first wiring plate and the second wiring plate, not only a reduction in a space occupied by the wiring portion and also an improvement in structural stability of the wiring portion.SOLUTION: A terminal body includes: an insertion portion 10 which includes a first insertion plate 11 and a second insertion plate 12; and a wiring portion 20 which is configured for fixing a limiting member 30 and is configured for connecting a core of a wire, the wiring portion including a first wiring plate 21 and a second wiring plate 22. A gap is formed between the first insertion plate and the second insertion plate, and the first insertion plate and the second insertion plate are commonly enclosed to form an insertion slot 101 configured for a mating terminal to be inserted therein. At least a part of the first wiring plate and at least a part of the second wiring plate are stacked and in contact with each other.SELECTED DRAWING: Figure 7

Description

Technical Field

[0001] The present invention relates to an electrical connection structure, and more particularly to a terminal body, a connection terminal, and a sheet material for manufacturing the terminal body.

Background Art

[0002] Existing connection terminals are generally of the crimp type, that is, the connection portion of the connection terminal is a clamp-type jaw portion. When the core of an electric wire is inserted into the clamp-type jaw portion, the clamp-type jaw portion closes to clamp the core of the electric wire, thereby realizing an electrical connection between the connection terminal and the core of the electric wire. However, this crimp-type connection structure is not suitable for processing and is likely to cause poor contact.

Summary of the Invention

Problems to be Solved by the Invention

[0003] An object of the present invention is to provide a terminal body, a connection terminal, and a sheet material for manufacturing the terminal body to solve the technical problem that the crimp-type connection portion in the prior art is likely to cause poor contact.

Means for Solving the Problems

[0004] The present invention is achieved by providing a terminal body (or terminal body; terminal body), which is an insertion portion including a first insertion plate and a second insertion plate, a gap is formed between the first insertion plate and the second insertion plate, and the first insertion plate and the second insertion plate together surround to form an insertion slot configured such that a mating terminal is inserted therein, an attachment structure respectively disposed on the first insertion plate and the second insertion plate and configured to fix a limiting member, and A wiring section configured to connect the core of an electric wire (or wire or wire), comprising a first wiring plate and a second wiring plate, wherein at least a portion of the first wiring plate and at least a portion of the second wiring plate are stacked and in contact with each other, Includes.

[0005] In one embodiment of the first aspect, the first insertion plate and the second insertion plate are opposite each other and spaced apart, and the first insertion plate is connected to the first wiring plate via a bent portion.

[0006] In one embodiment of the first aspect, the mounting structure includes at least one first restricting groove provided on the edge of a first insertion plate and at least one second restricting groove provided on the edge of a second insertion plate, wherein the first and second restricting grooves are configured to engage with a restricting member.

[0007] In one embodiment of the first aspect, a first restricting lug is provided in a convex shape at the bottom of a first restricting groove, and a second restricting lug is provided in a convex shape at the bottom of a second restricting groove, and the first and second restricting lugs are configured to be covered by a restricting member.

[0008] In one embodiment of the first aspect, the first insertion plate is located in front of the first wiring plate and has a first left end face facing left and a first right end face facing right, the second insertion plate is located in front of the second wiring plate and has a second left end face facing left and a second right end face facing right, and the second left end face and the second right end face each have two second limiting grooves.

[0009] In one embodiment of the first aspect, the first left end face and the first right end face are each provided with a first stamping groove formed by stamping (or pressing), the first stamping groove being adjacent to a first limiting groove, and the first stamping groove being provided to reduce the width of the first limiting groove. The second left end face and the second right end face are each provided with a second stamping groove formed by stamping, the second stamping groove being adjacent to a second limiting groove, and the second stamping groove being provided to reduce the width of the second limiting groove.

[0010] In one embodiment of the first aspect, the first insertion plate further comprises a first front end surface facing forward, the second insertion plate further comprises a second front end surface facing forward, the first insertion plate has a first limiting projection convexly provided on the first front end surface, and / or the second insertion plate has a second limiting projection convexly provided on the second front end surface.

[0011] In one embodiment of the first aspect, the terminal body further includes a connecting bridge connecting a first wiring plate and a second wiring plate, wherein the connecting bridge is plastically deformable, and the first wiring plate, the connecting bridge, and the second wiring plate are a single piece (or are a single unit).

[0012] In one embodiment of the first aspect, the terminal body further includes a positioning structure, the positioning structure includes a positioning groove and a positioning projection, the positioning projection being inserted into the positioning groove and adapted to form an interference fit, the positioning groove being positioned on the side of the first wiring plate facing the second wiring plate. The positioning projection is positioned in the manner of the second wiring plate facing the first wiring plate, or alternatively, the positioning groove is positioned in the manner of the second wiring plate facing the first wiring plate and the positioning projection is positioned in the manner of the first wiring plate facing the second wiring plate.

[0013] In a second aspect, the present invention provides a connection terminal comprising a limiting member and the terminal body, wherein the limiting member comprises a limiting structure and a mating structure, the mating structure fixedly coincides with a mounting structure provided on the terminal body, and the limiting structure is positioned across the gap between a first insertion plate and a second insertion plate.

[0014] In one embodiment of the second aspect, the limiting structure includes a first panel, a limiting plate, and a second panel, and the joining structure includes a first hook and a second hook, and the first panel and the second panel are opposite and spaced apart. The limiting plate is configured to connect the first panel and the second panel, the first hook is connected to the first panel, the second hook is connected to the second panel, the insertion portion is positioned between the first panel and the second panel, and the first hook and the second hook are hooked to a mounting structure, respectively.

[0015] In one embodiment of the second aspect, the mounting structure includes at least one first restricting groove provided at the end of a first insertion plate and at least one second restricting groove provided at the end of a second insertion plate, wherein a first restricting lug is provided at the bottom of the first restricting groove and a second restricting lug is provided at the bottom of the second restricting groove, the first hook is fitted over the first restricting lug and the second hook is fitted over the second restricting lug.

[0016] In one embodiment of the second aspect, the first panel, the limiting plate, and the second panel all form a U-shaped structure, and the limiting plate is positioned at the front end of the terminal body.

[0017] In one embodiment of the second aspect, the limiting member is provided with a fixing hole, and the front end surface of the insertion portion is provided with a convex limiting projection, which is adapted to be inserted into the fixing hole.

[0018] In one embodiment of the second aspect, the limiting plate is separated from the front end surface of the terminal body.

[0019] In one embodiment of the second aspect, two limiting plates are provided, and the first panel, the second panel, and the two limiting plates together enclose an annular structure, with the two limiting plates positioned on the left and right sides of the insertion portion, respectively.

[0020] In one embodiment of the second aspect, the connection terminal further includes an elastic contact member located between a first insertion plate and a second insertion plate, the elastic contact member being connected to the first insertion plate and electrically connected to (or in electrical communication with) the first insertion plate, and / or being connected to a second inner surface and electrically connected to the second insertion plate, the elastic contact member being able to elastically contact the mating terminal and electrically connect to the mating terminal when the mating terminal is inserted into the insertion slot.

[0021] In one embodiment of the second aspect, the elastic contact member is provided with a clamp hole, and the connecting terminal further includes a clamp block, the clamp block being convex in the manner of the first insertion plate facing the second insertion plate, or convex in the manner of the second insertion plate facing the first insertion plate, and the clamp block being inserted into the clamp hole to form a clamp fit.

[0022] In one embodiment of the second aspect, the joint structure is located at the rear end of the limiting member.

[0023] In a third aspect, the present invention provides a sheet material for manufacturing a terminal body. The sheet material is used for manufacturing the terminal body, has a flat (or planar) shape, is plastically deformable, and includes an insertion portion and a wiring portion. The sheet material has a spacing groove extending from the insertion portion toward the wiring portion. The spacing groove separates the insertion portion into a first insertion plate and a second insertion plate, and the wiring portion includes a first wiring plate, a second wiring plate, and a connection bridge corresponding to the spacing groove. The first insertion plate continuously extends from the first insertion plate, and the second insertion plate continuously extends from the second insertion plate.

Advantages of the Invention

[0024] Compared with the prior art, the technical effect of the present invention is that the first wiring plate of the terminal body for high-voltage connection is electrically connected to the first insertion plate, the second wiring plate is electrically connected to the second insertion plate, and when a mating terminal is inserted into the insertion slot formed between the first insertion plate and the second insertion plate, the mating terminal is electrically connected to the insertion portion and electrically connected to the core of the electric wire through the wiring portion. Thus, the mating terminal realizes an electrical connection with the core of the electric wire through the terminal body. Also, at least a part of the first wiring plate and at least a part of the second wiring plate are laminated and in contact with each other, that is, the first wiring plate and the second wiring plate are electrically connected. Therefore, the core of the electric wire can be electrically connected to both the first wiring plate and the second wiring plate, improving the conductivity and current-carrying performance of the wiring portion. Further, by laminating and arranging the first wiring plate and the second wiring plate, not only can the occupied space of the wiring portion be reduced, but also the structural stability of the wiring portion can be improved.

Brief Description of the Drawings

[0025] To make the objectives, technical solutions, and advantages of the present application clearer and easier to understand, the present application will be described in more detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the present invention and are not intended to limit the present invention. [Figure 1] It is a three-dimensional structure diagram of a terminal body provided by an embodiment of the present invention, viewed from the viewing angle. [Figure 2] It is a three-dimensional structure diagram of the terminal body in FIG. 1 viewed from another viewing angle. [Figure 3] It is a cross-sectional view of the terminal body in FIG. 1. [Figure 4] It is a three-dimensional structure diagram of a connection terminal provided by one embodiment of the present invention. [Figure 5] It is a longitudinal cross-sectional view of the connection terminal in FIG. 4. <00​​​​​​​​​​​​​​​​​​​​​​​​​​​ In this specification, the directions and positional relationships indicated by terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "internal," and "external" are based on the directions and positional relationships shown in the attached figures and are used solely to illustrate the present invention. They should be understood as being used for explanatory convenience and not to indicate or imply that the shown devices or elements must have a particular orientation or are configured and operate in a particular orientation.

[0028] Furthermore, the terms “the first” and “the second” are for explanatory convenience only and should not be interpreted as indicating or suggesting relative importance or implicitly indicating the number of technical features described. Features limited by “the first” or “the second” may explicitly or implicitly indicate that they include one or more features. In this specification, “multiple / a plurality of” means two or more unless otherwise explicitly and specifically provided.

[0029] In this specification, unless otherwise explicitly stated and limited, terms such as “mount,” “connect with each other,” “connect,” and “fix” should be interpreted generally. For example, “connect” can be interpreted as being permanently connected, detachably connected, or integrally connected; “connect” can be interpreted as being mechanically connected or electrically connected; “connect” can also be interpreted as being directly connected or indirectly connected through an intermediary, or as internal communication between two components or an interaction relationship between two components. To a person skilled in the art, the specific meaning of the aforementioned terms in this application may be interpreted according to specific conditions.

[0030] To further clarify the purpose, technical solution, and advantages of this application, the application will be described in more detail below with reference to the attached drawings and embodiments.

[0031] The present invention provides a terminal body 100 that can be inserted into a mating terminal to achieve an electrical connection with the mating terminal.

[0032] Referring to Figures 1 and 2, the terminal body 100 may be a terminal body 100 for high-voltage connection, and the terminal body 100 includes an insertion portion 10 and a wiring portion 20.

[0033] The insertion section 10 includes a first insertion plate 11 and a second insertion plate 12. There is a gap between the first insertion plate 11 and the second insertion plate 12, and the first insertion plate 11 and the second insertion plate 12 together surround the gap, forming an insertion slot 101 into which a mating terminal is inserted. The insertion slot 101 is a cavity with an opening, and the mating terminal extends into the cavity from the opening, interfering with the insertion section 10 to achieve an electrical connection with the insertion section 10. In this embodiment, the first insertion plate 11 and the second insertion plate 12 are arranged in parallel and spaced apart. When the mating terminal is inserted into the insertion slot 101, the mating terminal contacts both the first insertion plate 11 and the second insertion plate 12, and electrically connects with both of them. The first insertion plate 11 and the second insertion plate 12 are the same size and are arranged facing each other.

[0034] The wiring section 20 has a planar shape and a connection surface that connects to the core of the electric wire. After the core of the electric wire is connected to the connection surface, the wiring section 20 is electrically connected to the electric wire, and the insertion section 10 is electrically connected to the electric wire via the wiring section 20.

[0035] Referring to Figures 1 and 2, specifically, the wiring section 20 includes a first wiring plate 21, a second wiring plate 22, and a connecting bridge 23, the connecting bridge 23 connecting the first wiring plate 21 and the second wiring plate 22, and the first wiring plate 21 and the second wiring plate 22 are electrically connected via the connecting bridge 23. The first wiring plate 21 is electrically connected to the first insertion plate 11, and the second wiring plate 22 is electrically connected to the second insertion plate 12.

[0036] Optionally, the first wiring plate 21 and the first insertion plate 11 can be mechanically connected via the bent portion 111 and electrically connected, the first wiring plate 21 and the first insertion plate 11 are arranged in a staggered pattern in the vertical direction, the first insertion plate 11 is at a higher horizontal position than the first wiring plate 21, and the bent portion 111 extends in the vertical direction. The second wiring plate 22 and the second insertion plate 12 are located on the same horizontal plane and can be directly connected, and the second wiring plate 22 and the second insertion plate 12 are electrically connected.

[0037] In other embodiments, the second wiring plate 22 and the second insertion plate 12 are mechanically connected via the bent portion 111, and can also be electrically connected. The second wiring plate 22 and the second insertion plate 12 are arranged in a staggered pattern in the vertical direction, with the second insertion plate 12 having a higher horizontal position than the second wiring plate 22, and the bent portion 111 extending in the vertical direction. The first wiring plate 21 and the first insertion plate 11 can be located on the same horizontal plane and directly connected, and the first wiring plate 21 and the first insertion plate 11 are electrically connected.

[0038] In this configuration, the bent portion 111 may be provided only between the first wiring plate 21 and the first insertion plate 11. Alternatively, the bent portion 111 may be provided only between the second wiring plate 22 and the second insertion plate 12. Alternatively, the bent portion 111 may be provided between the first wiring plate 21 and the first insertion plate 11, and between the second wiring plate 22 and the second insertion plate 12. In this embodiment, referring to Figure 1, the bent portion 111 may be provided only between the first wiring plate 21 and the first insertion plate 11.

[0039] In one embodiment, the thickness of the wiring section 20 is greater than the thickness of the first wiring plate 21 or the second wiring plate 22. That is, the first wiring plate 21 and the second wiring plate 22 are not on the same plane. Optionally, they can be fitted together via a stepped structure. In this embodiment, the first wiring plate 21 has an upward-facing first outer surface and a downward-facing first inner surface, and the second wiring plate 22 has a downward-facing second outer surface and an upward-facing second inner surface, with the first inner surface facing the second inner surface. Here, the periphery of the first wiring plate 21 and the periphery of the second wiring plate 22 coincide, meaning that the first wiring plate 21 and the second wiring plate 22 are the same size and stacked vertically on top of each other. Furthermore, the core of the electric wire can be welded to the first wiring plate 21, or to the second wiring plate 22, or to both the first wiring plate 21 and the second wiring plate 22, using ultrasonic welding technology.

[0040] Referring to Figures 1 and 3, in one embodiment, the first wiring plate 21 is provided with through holes 211 that penetrate the first outer surface and the first inner surface, and a boss 221 is provided in a convex shape on the second inner surface, the boss 221 passing through the through holes 211 and configured to connect to the core of the electric wire together with the first outer surface. In other words, the core of the electric wire is connected to the first wiring plate 21 via the first outer surface and to the second wiring plate 22 via the boss 221, so that the core of the electric wire can be electrically connected directly to both the first wiring plate 21 and the second wiring plate 22 at the same time. Conductivity and electrical conductivity are improved, and structural stability is also improved by the double arrangement of the first wiring plate 21 and the second wiring plate 22. When a mating terminal is inserted into the insertion slot 101 formed by the first insertion plate 11 and the second insertion plate 12, the mating terminal is electrically connected to the insertion section 10 and electrically connected to the core of the electric wire via the wiring section 20. Of these, the boss 221 can be formed by stamping via the second wiring plate 22, so the boss 221 can be formed quickly, saving material and cost.

[0041] Preferably, the upper surface of the boss 221 and the first outer surface are integrated to form a connection surface for connecting the core of the electric wire. Since the connection surface is planar, the core of the electric wire can be connected to the boss 221 and the first outer surface on the same plane, improving structural stability and reducing the occurrence of poor contact.

[0042] In the above embodiment, the first inner surface and the second inner surface may be spaced apart. In this case, the second wiring plate 22 is electrically connected to the core of the wire only via the boss 221.

[0043] In this embodiment, at least a portion of the first wiring plate 21 is in contact with at least a portion of the second wiring plate 22. That is, at least a portion of the first inner surface and at least a portion of the second inner surface are in contact, and a portion of the first wiring plate 21 and a portion of the second wiring plate 22 are connected to the core of the electric wire, thereby improving the current-carrying performance of the wiring section 20 and preventing the first wiring plate 21 and the second wiring plate 22 from moving up and down relative to each other. Referring to Figures 1 and 3, preferably, the first inner surface is in complete contact with the second inner surface and electrically connected to further improve the current-carrying performance, and structural stability is enhanced so that the first wiring plate 21 and the second wiring plate 22 do not deform.

[0044] In another embodiment, a portion of the first wiring plate 21 and a portion of the second wiring plate 22 are stacked and in contact with each other. That is, a portion of the first wiring plate 21 and a portion of the second wiring plate 22 are stacked vertically on top of each other, and at least a portion of the inner surface of the first and at least a portion of the inner surface of the second are in contact. Such a stacked arrangement facilitates contact and connection between a portion of the first wiring plate 21 and a portion of the second wiring plate 22, while also reducing the space occupied compared to a non-stacked arrangement.

[0045] The through-hole 211 may be provided in the central region of the first wiring plate 21, or it may be provided on the periphery of the first wiring plate 21 and intersect with its side end face, similar to how the cross-sectional area of ​​the first wiring plate 21 is smaller than the cross-sectional area of ​​the second wiring portion 20. In this case, the end of the second wiring plate 22 may be provided with a protrusion similar to that of the second wiring plate 22, or a stepped structure may be formed from the second wiring plate 22.

[0046] The terminal body 100 used for high-voltage connections has a first wiring plate 21 electrically connected to a first insertion plate 11, and a second wiring plate 22 electrically connected to a second insertion plate 12. When a aligning terminal is inserted into an insertion slot 101 formed between the first insertion plate 11 and the second insertion plate 12, the aligning terminal is electrically connected to the insertion portion 10 and electrically connected to the core of the electric wire via the wiring portion 20. The wiring portion 20 is provided with an alignment structure. The alignment structure includes a through hole 211 provided on the first inner surface and a boss 221 provided on the second inner surface. The boss 221 is housed in the through hole 211 and used together with the first outer surface to electrically connect to the core of the electric wire. Therefore, when the core of the electric wire is connected to the wiring portion 20, it is possible to electrically connect not only to the first wiring plate 21 via the first outer surface, but also to the second wiring plate 22 via the boss 221. Since the core of the electric wire can be electrically connected to both the first wiring plate 21 and the second wiring plate 22 simultaneously, the conductivity and current-carrying performance of the wiring section 20 can be improved. At the same time, the structural stability of the terminal body 100 is improved by the double arrangement of the first wiring plate 21 and the second wiring plate 22.

[0047] In one embodiment, the boss 221 and the hole wall of the through hole 211 are in a clearance fit, meaning there is a gap between the side wall of the boss 221 and the side wall of the through hole 211. The cross-section of the boss 221 is square, and correspondingly the cross-section of the through hole 211 is also square. Therefore, the boss 221 has four side walls, and at least one of the four side walls is separated from the side wall of the through hole 211, which reduces the machining accuracy requirements for the boss 221 and the through hole 211 and makes it convenient to position the boss 221 and the through hole 211.

[0048] In another embodiment, the boss 221 and the through hole 211 can form an interference fit, that is, the cross-sectional area of ​​the boss 221 is slightly larger than the cross-sectional area of ​​the through hole 211, and the boss 221 is inserted into the through hole 211 by a slight extrusion deformation. This not only enables a fixed connection between the first wiring plate 21 and the second wiring plate 22 and an electrical connection between the boss 221 and the core of the wire, but also limits the relative displacement between the first wiring plate 21 and the second wiring plate 22.

[0049] In another embodiment, the boss 221 and the through hole 211 are in a transitional fit. A transitional fit means that during assembly of the through hole 211 and the boss 221, a clearance fit or a tight fit may occur. The tolerance range of the through hole 211 and the tolerance range of the boss 221 overlap with each other. In this way, the tolerance ranges of the boss 221 and the through hole 211 are further relaxed, reducing the requirements for machining accuracy.

[0050] However, in order to achieve electrical connection with the core of the electric wire, the boss 221 usually has a larger cross-section. Due to the limitations of stamping technology, it is difficult to ensure the size accuracy of the boss 221, resulting in a large tolerance for the fit between the through hole 211 and the boss 221, and making it impossible to meet the requirements for a tight fit. In this regard, in this embodiment, referring to Figures 1 and 3, the terminal body 100 further includes a positioning mechanism. The positioning mechanism includes a positioning projection 222 and a positioning groove 212. The positioning projection 222 and the positioning groove 212 are provided on the first wiring plate 21 and the second wiring plate 22, respectively. In this embodiment, the positioning groove 212 is provided on the first inner surface of the first wiring plate 21, and the positioning projection 222 protrudes from the second inner surface of the second wiring plate 22. In other embodiments, the positioning groove 212 may be formed on the second inner surface of the second wiring plate 22, and the positioning projection 222 may protrude from the first inner surface of the first wiring plate 21. The positioning projection 222 is fitted into the positioning groove 212, forming an interlocking fit. This interlocking fit occurs because the cross-sectional area of ​​the positioning projection 222 is slightly larger than that of the positioning groove 212. As a result, the positioning projection 222 is compressed by the positioning groove 212, deforming slightly and becoming locked into the positioning groove 212 by friction. This interlocking fit between the positioning projection 222 and the positioning groove 212 fixes the positions of the first wiring plate 21 and the second wiring plate 22, prevents separation of the first wiring plate 21 and the second wiring plate 22, and suppresses relative movement between the first wiring plate 21 and the second wiring plate 22.

[0051] The cross-sectional area of ​​the positioning groove 212 is smaller than the cross-sectional area of ​​the through hole 211, which facilitates the machining of the positioning projection 222 and enables a tight fit between the positioning projection 222 and the positioning groove 212. In particular, forming the positioning projection 222 with the cold rivet of the second wiring plate 22 enables rapid formation of the positioning projection 222 and ensures the dimensional accuracy of the positioning projection 222. In this embodiment, the bottom of the positioning groove 212 does not necessarily have to be a through groove.

[0052] In this embodiment, multiple positioning grooves 212 are provided at intervals, and multiple positioning protrusions 222 are provided, with each positioning protrusion 222 fitted into one positioning groove 212. The one-to-one connection between the multiple positioning protrusions 222 and the multiple positioning grooves 212 enables the positioning function between the first wiring plate 21 and the second wiring plate 22, and prevents relative movement between the first wiring plate 21 and the second wiring plate 22.

[0053] In another embodiment, at least a portion of the first wiring plate 21 and at least a portion of the second wiring plate 22 are stacked and in contact. Since the first inner surface and the second inner surface are partially in contact and connected, the boss 221 and through hole 211 may not be provided, and the positioning projection 222 and positioning groove 212 may not be provided. The contact and connection between the first inner surface and the second inner surface improves the conductivity and current-conductivity of the wiring section 20. In yet another embodiment, referring to Figure 4, the terminal body 100 may also consist only of the positioning projection 222 and the positioning groove 212. The positioning projection 222 and the positioning groove 212 are for restricting the relative movement of the first wiring plate 21 and the second wiring plate 22. Furthermore, when welding using ultrasonic welding technology, arranging the positioning projection 222 and the positioning groove 212 improves the structural stability of the wiring section 20 and prevents damage to the wiring section 20. Furthermore, since at least a portion of the first wiring plate 21 and at least a portion of the second wiring plate 22 are stacked and in contact, that is, the first wiring plate 21 and the second wiring plate 22 are electrically connected, the core of the electric wire can be electrically connected to both the first wiring plate 21 and the second wiring plate 22 simultaneously, thereby improving the conductivity and current-carrying performance of the wiring section 20. In addition, by stacking the first wiring plate 21 and the second wiring plate 22, the space occupied by the wiring section 20 can be reduced, and the structural stability of the wiring section 20 can be improved.

[0054] Preferably, the first insertion plate 11, the first wiring plate 21, the connecting bridge 23, the second wiring plate 22, and the second insertion plate 12 are sequentially connected and integrally formed. By plastically deforming both the wiring portion 20 and the bending portion 111 and bending the connecting bridge 23, the first wiring plate 21 and the second wiring plate 22 are connected, and by deforming the bending portion 111, horizontal and vertical displacement between the first wiring plate 21 and the first insertion plate 11 can be achieved. During processing, the sheet material can be made into a U shape, including the first insertion plate 11, the first wiring plate 21, the connecting bridge 23, the second wiring plate 22, and the second insertion plate 12, respectively, and the boss 221 is inserted into the through hole 211 by bending the wiring portion 20. Furthermore, by inserting the positioning projection 222 into the positioning groove 212, the wiring section 20 can be processed, and then by bending the bending section 111, a spaced arrangement between the first insertion plate 11 and the second insertion plate 12 can be achieved, thereby processing the insertion section 10. In this embodiment, by using a metal material for the sheet material, good conductivity and plastic deformability are achieved.

[0055] Referring to Figures 4 and 7, in order to install the terminal body 100 and the limiting member 30, the terminal body 100 is provided with a mounting structure on its insertion portion 10, and the limiting member 30 is connected to the terminal body 100 via the mounting structure. The mounting structure is positioned on the first insertion plate 11 and the second insertion plate 12, respectively, for fixing the limiting member 30. The mounting structure includes at least one first limiting groove 102 positioned on the edge of the first insertion plate 11 and at least one second limiting groove 103 positioned on the edge of the second insertion plate 12. The first limiting groove 102 and the second limiting groove 103 are used for engaging the limiting member 30. The limiting member 30 can be connected to the terminal body 100 via the mounting structure. The limiting member 30 is used to restrict the separation or opening of the first insertion plate 11 and the second insertion plate 12, and / or to restrict the approach or closing of the first insertion plate 11 and the second insertion plate 12. The limiting member 30 can be connected to the insertion portion 10 via a mounting structure. The first limiting groove 102 and the second limiting groove 103 provide a connection position for the limiting member 30 and are used to restrict the relative movement between the limiting member 30 and the insertion portion 10.

[0056] In this embodiment, the first insertion plate 11 has a first front end face facing forward, a first left end face facing left, and a first right end face facing right, and the second insertion plate 12 has a second front end face facing forward, a second left end face facing left, and a second right end face facing right, and the ends of the first insertion plate 11 refer to the first left end face and the first right end face. That is, a first limiting groove 102 is provided on at least one of the first left end face and the first right end face, and the ends of the second insertion plate 12 refer to the second left end face and the second right end face, that is, a second limiting groove 103 is provided on at least one of the second left end face and the second right end face. Referring to Figure 7, in this embodiment, one first limiting groove 102 is provided on the first left end face, one first limiting groove 102 is provided on the first right end face, one second limiting groove 103 is provided on the second left end face, and one second limiting groove 103 is provided on the second right end face. The limiting member 30 can be connected to the first limiting groove 102 and the second limiting groove 103, and specifically, it can engage with the first limiting groove 102 and the second limiting groove 103, preventing the limiting member 30 from moving back and forth relative to the terminal body 100.

[0057] Because the terminal body 100 is small in size, the groove bottoms of the first limiting groove 102 and the second limiting groove 103 are generally concave arc surfaces during processing and manufacturing. When the limiting member 30 is connected to the first limiting groove 102 and the second limiting groove 103, it cannot contact the concave arc surface. For this reason, please refer to Figure 7 in this embodiment. Referring to Figure 7, a first limiting lug 131 is provided convexly at the groove bottom of the first limiting groove 102, and the extended length of the first limiting lug 131 is less than the groove depth of the first limiting groove 102. A second limiting lug 132 is provided convexly at the groove bottom of the second limiting groove 103. The extended length of the second limiting lug 132 is less than the groove depth of the second limiting groove 103, and both the first limiting lug 131 and the second limiting lug 132 are used to cover the limiting member 30.

[0058] The first insertion plate 11 is positioned in front of the first wiring plate 21. The first insertion plate 11 has a first left end face facing left and a first right end face facing right, and is provided with two first limiting grooves 102, which are located on the first left end face and the first right end face, respectively. The second insertion plate 12 is positioned in front of the second wiring plate 22, and the second insertion plate 12 has a second left end face facing left and a second right end face facing right, and is provided with two second limiting grooves 103, which are located on the second left end face and the second right end face, respectively.

[0059] A restricting projection is provided in a convex shape on the front end surface of the insertion portion 10. Specifically, this will be explained with reference to Figures 4 and 5. Referring to Figure 5, the first insertion plate 11 also has a first front end surface facing forward, and the second insertion plate 12 also has a second front end surface facing forward, and the first insertion plate 11 has a first restricting projection 141 provided in a convex shape on its first front end surface, or the second insertion plate 12 has a second restricting projection 142 provided in a convex shape on its second front end surface, or the first insertion plate 11 has a first restricting projection 141 provided in a convex shape on its first front end surface, and the second insertion plate 12 has a second restricting projection 142 provided in a convex shape on its second front end surface. Both the first restricting projection 141 and the second restricting projection 142 are used for covering by the restricting member 30.

[0060] Furthermore, the present invention provides a sheet material for manufacturing the terminal body 100 described in the above embodiment. This sheet material is planar, plastically deformable, and includes an insertion portion 10 and a wiring portion 20, the insertion portion 10 being provided with a spacer groove extending toward the connecting portion. The spacer groove separates the insertion portion 10 into a first insertion plate 11 and a second insertion plate 12. The wiring portion 20 includes a first wiring plate 21, a second wiring plate 22, and a connecting bridge 23 corresponding to the spacer groove, the connecting bridge 23 being located between the first wiring plate 21 and the second wiring plate 22 and plastically deformable, the first insertion plate 11 extending continuously from the first wiring plate 21, and the second insertion plate 12 extending continuously from the second wiring plate 22. During processing, the first wiring plate 21 and the second wiring plate 22 are overlapped and attached by bending the connecting bridge 23. The joint between the first insertion plate 11 and the first wiring plate 21, or the joint between the second insertion plate 12 and the wiring plate 22, is bent to form a bent portion 111, thereby separating the first insertion plate 11 and the second insertion plate 12 and forming an insertion slot 101. In this embodiment, the joint between the first insertion plate 11 and the first wiring plate 21 is bent to form a bent portion 111, and the end of the first insertion plate 11 and the end of the second insertion plate 12 after bending are aligned. By using the above method, the terminal body 100 can be processed to save material while simultaneously enabling mass production, which is convenient for rapid prototyping.

[0061] The present invention provides a connection terminal comprising a limiting member 30 improved in the above embodiment and a high-voltage connection terminal body 100. Here, the terminal body 100 has the same structure and performs the same role as the terminal body 100 described in the above embodiment, and will not be repeated here.

[0062] The explanation will be given with reference to Figures 8 and 11. The limiting member 30 includes a limiting structure and a mating structure. The mating structure is fixedly aligned with a mounting structure provided on the terminal body 100. The limiting member 30 is fixed to the terminal body 100 via a connection between the mating structure and the mounting structure. The limiting structure is positioned across the gap between the first insertion plate 11 and the second insertion plate 12, restricting the openings of the first insertion plate 11 and the second insertion plate 12. The limiting structure avoids the opening of the cavity, allowing the mating terminal to be inserted into the cavity through the opening, thereby enabling insertion of the mating terminal into the insertion slot 101.

[0063] Specifically, referring to Figures 8 and 11, the following applies: The limiting structure includes a first panel 31, a limiting plate 33, and a second panel 32. The aligned limiting structure includes a first hook 341 and a second hook 342. The first panel 31 and the second panel 32 face each other and are separated, the limiting plate 33 is configured to connect the first panel 31 and the second panel 32, the first hook 341 is connected to the first panel 31, and the second hook 342 is connected to the second panel 32. The first hook 341 and the second hook 342 are each hooked onto a mounting structure to restrict the separation of the limiting member 30 from the terminal body 100. Referring to Figures 4 and 6, in this embodiment, two first hooks 341 are provided, connected to the left and right sides of the first panel 31, respectively. The first hook 341 is fitted into the first restricting groove 102, and the width of the first hook 341 matches the width of the first restricting groove 102, and the two side walls of the first restricting groove 102 can restrict the movement of the first hook 341 in the front-rear direction. In addition, two second hooks 342 are provided and connected to the left and right sides of the second panel 32, respectively. The second hooks 342 are fitted into the second restricting groove 103. The second hooks 342 are insertable into the second restricting groove 103. The width of the second hooks 342 matches the width of the second restricting groove 103, and the two side walls of the second restricting groove 103 can restrict the movement of the second hooks 342 in the front-rear direction. In this way, the first hook 341 and the second hooks 342 restrict the restricting member 30 in the front-rear direction.

[0064] Referring to Figure 6, specifically, the first hook 341 can be hooked onto the first limiting lug 131, and the second hook 342 can be hooked onto the second limiting lug 132. Note that "hooking" refers to the first hook 341 being bent into a C-shape to enclose the first limiting lug 131, and the second hook 342 being bent into a C-shape to enclose the second limiting lug 132. That is, the cross-sections of both the first hook 341 and the second hook 342 are C-shaped, with the first hook 341 hooking onto the side of the first insertion plate 11 facing the second insertion plate 12, and the second hook 342 hooking onto the side of the second insertion plate 12 facing the first insertion plate 11, thereby restricting the vertical movement of the limiting member 30. Preferably, the first hook 341 can clamp the first limiting lug 131 via a C-shaped structure, and the second hook 342 can clamp the second limiting lug 132 via a C-shaped structure. The setting of the first limiting lug 131 provides a clamping support point for the first hook 341, and the setting of the second limiting lug 132 provides a clamping support point for the second hook 342. Such clamping settings improve the connection stability between the limiting member 30 and the terminal body 100. During processing, the initial state of the first hook 341 and the second hook 342 can be a long strip that is bent inward to wrap around the first limiting lug 131 and the second limiting lug 132, respectively.

[0065] Referring to Figure 5, the insertion section 10 is located between the first panel 31 and the second panel 32. That is, the first panel 31 is attached to the side of the first insertion plate 11 that faces away from the second insertion plate 12, and the second panel 32 is attached to the side of the second insertion plate 12 that faces away from the first insertion plate 11. The first panel 31 and the second panel 32 can restrict the opening of the insertion section 10.

[0066] During processing, the accuracy of the first limiting groove 102 and the first hook 341 cannot be guaranteed because the terminal body 100 and the limiting member 30 are small. In order to ensure that the first hook 341 is hooked onto the first limiting lug 131, the width of the first limiting groove 102 is generally slightly larger than the width of the first hook 341. For this reason, referring to Figures 4 and 9, the first left end face and the first right end face are provided with first punching grooves 104 formed by punching, respectively, and the first punching grooves 104 are located near the first limiting groove 102, specifically, the first punching grooves 104 are located behind the first limiting groove 102. When the first hook 341 is hooked onto the first limiting lug 131, the first punching groove 104 is formed at the rear of the first limiting groove 102.

[0067] Under the action of punching, the portion between the first limiting groove 102 and the first punching groove 104 is pressed toward the first limiting groove 102 by the punching pressure, so that the width of the first limiting groove 102 is reduced, that is, the arrangement of the first punching groove 104 is used to reduce the width of the first limiting groove 102 so that the two groove walls of the first limiting groove 102 can clamp the first hook 341. A second punching groove 105 is provided on the second left end face and the second right end face, respectively, and the second punching groove 105 is formed by punching, and the second punching groove 105 opens in the vicinity of the second limiting groove 103, specifically the second punching groove 105 is positioned behind the second limiting groove 103, and the arrangement of the second punching groove 105 is used to reduce the width of the second limiting groove 103. The effect of the second punching groove 105 is the same as that of the first punching groove 104, so it will not be repeated here.

[0068] Referring to Figure 4, in one embodiment, the first panel 31, the limiting plate 33, and the second panel 32 are joined together to form a U-shape. During assembly, the terminal body 100 is inserted into the U-shaped groove of the limiting member 30, and the limiting plate 33 is located at the front end of the terminal body 100, that is, the limiting plate 33 shields the opening of the insertion portion 10 facing forward. At this time, the insertion portion 10 has a left-facing or right-facing opening, and the mating terminal can be inserted into the cavity from the left opening or the right opening, that is, the mating terminal can be inserted into the insertion slot 101 from the left or the right side.

[0069] Referring to Figures 4 and 7, the limiting member 30 is provided with fixing holes 301, and the limiting projection provided at the front end of the insertion part 10 is fitted into the fixing holes 301 and inserted. The limiting member 30 can be positioned in a way that prevents lateral movement of the limiting member 30 through the insertion coordination between the limiting projection and the fixing holes 301. In this embodiment, there are two fixing holes 301, and the two fixing holes 301 are fitted to the first limiting projection 141 and the second limiting projection 142, respectively. The first limiting projection 141 and the second limiting projection 142 are located in positions for installing the limiting member 30. When installing the limiting member 30, first the first limiting projection 141 and the second limiting projection 142 are fitted into the two fixing holes 301, respectively, and inserted to connect the joint structure and the mounting structure.

[0070] Referring to Figure 5, preferably, the limiting plate 33 and the front end surface of the terminal body 100 are spaced apart. That is, the distance between the limiting plate 33 and the mating structure is greater than the distance between the first front end surface and the first limiting groove 102, providing an installation margin for connecting the mating structure and the mounting structure, and making it possible to avoid situations where the mating structure and the mounting structure cannot be fitted together due to a manufacturing error.

[0071] The limiting member 30 in the above embodiment can be a single piece formed by bending a plastically deformable flat material, the flat material being a long strip with two extended ends having strip-shaped portions extending in the width direction, the two ends of the flat material being bent at 90° to form a first panel 31 and a second panel 32 parallel to each other, and the intermediate portion perpendicular to the first panel 31 and the second panel 32 forming a limiting plate 33. The strip-shaped material is bent inward to form a first hook 341 and a second hook 342. Such an arrangement not only saves material but also facilitates the processing and manufacturing of the limiting member 30. At the same time, since the limiting plate 33 is a single integrated structure and there are no solder joints between the limiting plate 33 and the first panel 31 and the second panel 32, the structural stability of the limiting plate 33 is improved, and it is possible to prevent the limiting plate 33 from being damaged at the solder joints due to excessive release force from the first insertion plate 11 and the second insertion plate 12.

[0072] Refer to Figures 9 and 10. In another embodiment, two limiting plates 33 are provided. The first panel 31, the second panel 32, and the two limiting plates 33 are enclosed together to form a ring, and the two limiting plates 33 are positioned on the left and right sides of the insertion portion 10, respectively. In other words, the first panel 31, limiting plate 33, second panel 32, and limiting plate 33 are connected in sequence to form a ring. In this case, the two limiting plates 33 avoid the opening of the cavity facing forward, and the mating terminal can be inserted into the cavity from the front to the back through the opening, thereby enabling mating and insertion of the mating terminal and the insertion portion 10.

[0073] Referring to Figure 9, when the joint structure is located at the rear end of the limiting member 30, the limiting plate 33 is located at the front of the joint structure, and the front end face of the limiting plate 33 can be made flush with the front end face of the insertion portion 10. This protects the limiting projection and prevents it from wearing down, restricts the front end of the insertion portion 10, and further restricts the openings of the first insertion plate 11 and the second insertion plate 12. In addition, the rear end face of the first hook 341 is flush with the rear end face of the first panel 31, and the rear end face of the second hook 342 is flush with the rear end face of the second panel 32, facilitating the cutting of the planar sheet material forming the limiting member 30 and saving on processing costs.

[0074] In the above embodiment, the limiting member 30 can be a single piece formed by bending a plastically deformable flat material. The flat material has a square zigzag shape, and the flat material has two serrations (or sawtooth-like structures) and two recesses, which are arranged in a staggered pattern. Two sides of the serrations extend along the width direction of the strip material, and the flat material is bent along the width direction of the serrations, with the bend becoming the intersection of the serrations and the recesses. The two extended ends are aligned and welded together to form an annular shape. In this case, the cross-section of the limiting member 30 is square, the two serrations are the first panel 31 and the second panel 32, and the two recesses are both limiting plates 33. The strip material is bent inward to form hook-shaped first hooks 341 and second hooks 342. This configuration saves material and facilitates the processing and manufacturing of the limiting member 30.

[0075] The aforementioned terminal body 100 can be mated and connected by providing multiple different restricting members 30. In this embodiment, the terminal body 100 can satisfy the requirement that the mating terminals can be inserted in two different directions by providing two different restricting members 30 for mating connection. This terminal body 100 is highly applicable and convenient for mass production. Existing restricting members 30 are generally arranged to fit different terminal bodies 100 separately, and the insertion portion 10 is wound to achieve a restricting effect on the terminal body 100. In this embodiment, the restricting member 30 uses less material, the restricting member 30 is integrated, there is no need to wrap the insertion portion 10, it is convenient to process, saves material, and has strong structural stability.

[0076] Referring to Figures 4 and 9, in order to facilitate contact and connection between the mating terminal and the insertion portion 10, the connecting terminal further includes an elastic contact member 40 located between the first insertion plate 11 and the second insertion plate 12. The elastic contact member 40 is connected to the first insertion plate 11 and can be electrically connected to the first insertion plate 11, and the elastic contact member 40 is also connected to the second inner surface and can be electrically connected to the second insertion plate 12. In this embodiment, referring to Figure 6, it is also possible to connect the first insertion plate 11 and the second insertion plate 12 with the elastic contact member 40. When the mating terminal is inserted into the insertion slot 101, it is inserted between the two elastic contact members 40, and the elastic contact members 40 elastically deform to elastically contact the upper and lower surfaces of the mating terminal, thereby achieving close contact with the mating terminal. The elastic contact member 40 is also electrically connected to the insertion portion 10, and the elastic contact member 40 achieves an electrical connection with the mating terminal through elastic contact and connection. In this way, the connecting terminal is electrically connected to the insertion portion 10 via the elastic contact member 40, and poor contact during electrical connection can be avoided by the elastic contact.

[0077] Referring to Figures 7 and 10, the elastic contact member 40 is provided with a clamp hole 401, and the connection terminal further includes a clamp block 15. The clamp block 15 protrudes from the side of the first insertion plate 11 facing the second insertion plate 12, or from the side of the second insertion plate 12 facing the first insertion plate 11, and the clamp block 15 is inserted into the clamp hole 401 to form a crimp fit. In this embodiment, a clamp block 15 is provided on both the first insertion plate 11 and the second insertion plate 12, and two elastic contact members 40 are provided and engage with the clamp block 15 via the clamp hole 401, respectively, thereby enabling a detachable connection of the terminal body 100 and convenient for the quick assembly of the connection terminal.

[0078] To enable a quick connection between the connection terminals and the connector housing, the limiting member 30 also includes a clamping elastic strip 35. The clamping elastic strip 35 can be connected to the first panel 31, the second panel 32, or the limiting plate 33. In this embodiment, two clamping elastic strips 35 are provided, which are connected to the first panel 31 and the second panel 32, respectively. The clamping elastic strip 35 can engage with the mating socket of the connector housing by elastic deformation.

[0079] To facilitate the alignment of the connection terminals and the connector housing, referring to Figures 8 and 11, the limiting member 30 further includes a guide assembly, which is connected to the first panel 31, the second panel 32, or the limiting plate 33, and the guide assembly includes two guide convex strips 36, which can be positioned to the left and right of the clamp elastic strip 35, respectively, and the guide convex strips 36 extend in the front-rear direction. The connector housing has a sliding rail provided therein, and the guide convex strips 36 are slidably connected to the sliding rail to guide the mounting of the terminal body 100.

[0080] In this embodiment, two guide assemblies are provided and connected to the first panel 31 and the second panel 32, respectively. The distance between the two guide convex strips 36 provided on the first panel 31 is different from the distance between the two guide convex strips 36 provided on the second panel 32. Correspondingly, the sliding rails in the mating socket of the connector housing are also provided at different intervals, so that when installing the connection terminals, it is possible to determine whether the connection terminals are assembled correctly by distinguishing whether the guide assemblies are mated with the sliding rails.

[0081] The present invention further provides a cable assembly comprising a high-voltage terminal body 100. This cable assembly includes an electric wire and the terminal body 100 described in the above-described embodiment, wherein the core of the electric wire is electrically connected to the wiring portion 20 of the terminal body 100. Of these, the terminal body 100 has the same structure and performs the same role as the terminal body 100 described in the above-described embodiment, and will not be repeated here. In one embodiment, the electric wire core can be welded to the wiring portion 20 by ultrasonic welding technology to achieve electrical connection between the electric wire core and the wiring portion 20. Furthermore, since the electric wire core of the terminal body 100 and the wiring portion 20 are welded and connected by ultrasonic welding technology, structural stability is improved. In another embodiment, the electric wire core can be in contact with and connected to the first outer surface of the connection portion to achieve electrical connection between the electric wire core and the terminal body. The above contact and connection may be a fixed connection, a movable connection, or a detachable connection.

[0082] The present invention provides a connector including a connection housing and a terminal body 100 for high-voltage connection, which are improved versions of the embodiments described above. The connection housing is provided with a terminal cavity for housing the terminal body 100 in order to permanently install the terminal body 100. The terminal body 100 has the same structure and performs the same role as the terminal body 100 described in the above embodiments, and will not be repeated here.

[0083] As described above, the embodiments described herein are for illustrating, and not limiting, the technical solutions of the present invention. Although the present application has been described in detail with reference to the embodiments described above, those skilled in the art will know that the technical solutions described in each of the embodiments described above can still be modified, or that some technical features in the technical solutions can be replaced by equivalent means, and that such modifications or equivalent replacements will not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions in the various embodiments of the present application, and should all be included within the scope of protection of the present application. [Explanation of Symbols]

[0084] 10 ... Insertion part 11… First insertion plate 12… Second insertion plate 15… Clamping block 20 … Wiring section 21… First wiring plate 22… Second wiring plate 23… Connecting Bridge 30… Restricting member 31… Panel 1 32… Second panel 33… Restriction plate 35… Clamp elastic strip 36… Guide convex strip 40 … Elastic contact member 100 ... Terminal body 101… Insertion slot 102 … First limiting groove 103... Second limiting groove 104 ... First punching groove 105... Second punching groove 111 ... Bending section 131... First restriction lag 132... Second restriction lag 141 … First limiting projection 142 … Second limiting projection 211 ... Through hole 212 … Positioning groove 221... Boss 222 … Positioning protrusion 301…Fixing hole 341... First hook 342... The second hook 401… Clamp hole

Claims

1. An insertion section comprising a first insertion plate and a second insertion plate, Mounting structures, which are arranged on the first insertion plate and the second insertion plate respectively and configured to fix the limiting member, and A wiring section configured to connect the cores of an electric wire, including a first wiring plate and a second wiring plate. Equipped with, A gap is formed between the first insertion plate and the second insertion plate, and the first and second insertion plates together form an insertion slot into which a matching terminal is inserted. At least a portion of the first wiring plate and at least a portion of the second wiring plate are stacked and in contact with each other. A terminal body wherein the first insertion plate further comprises a first front end surface facing forward, and the second insertion plate further comprises a second front end surface facing forward, wherein the first insertion plate has a first limiting projection convexly provided on its first front end surface, and / or the second insertion plate has a second limiting projection convexly provided on its second front end surface.

2. The terminal body according to claim 1, wherein the first insertion plate and the second insertion plate are separated from each other and the first insertion plate is connected to the first wiring plate via a bent portion.

3. The terminal body according to claim 1, wherein the mounting structure comprises at least one first restricting groove provided on the edge of the first insertion plate and at least one second restricting groove provided on the edge of the second insertion plate, and the first restricting groove and the second restricting groove are configured to engage with the restricting member.

4. The terminal body according to claim 3, wherein a first restricting lug is provided in a convex shape at the bottom of the first restricting groove, a second restricting lug is provided in a convex shape at the bottom of the second restricting groove, and the first and second restricting lugs are configured to be covered by the restricting member.

5. The terminal body according to claim 4, wherein the first insertion plate is located in front of the first wiring plate, and the first insertion plate is provided with a leftward-facing first left end face and a rightward-facing first right end face, and the second insertion plate is located in front of the second wiring plate, and the second insertion plate is provided with a leftward-facing second left end face and a rightward-facing second right end face, and the second left end face and the second right end face are each provided with two second limiting grooves.

6. The first left end face and the first right end face are provided with first stamping grooves formed by stamping, the first stamping grooves are provided adjacent to the first limiting groove, and the first stamping grooves are provided to reduce the width of the first limiting groove. The terminal body according to claim 5, wherein the second left end face and the second right end face are provided with a second stamping groove formed by stamping, the second stamping groove is provided adjacent to the second limiting groove, and the second stamping groove is provided to reduce the width of the second limiting groove.

7. The terminal body according to claim 1, further comprising a connecting bridge connecting the first wiring plate and the second wiring plate, wherein the connecting bridge is plastically deformable, and the first wiring plate, the connecting bridge and the second wiring plate are an integral piece.

8. The terminal body further comprises a positioning structure, the positioning structure comprising a positioning groove and a positioning projection, the positioning projection being fitted into the positioning groove to form a crimping fit, The positioning groove is located on the side of the first wiring plate facing the second wiring plate, and the positioning projection is located on the side of the second wiring plate facing the first wiring plate, or The terminal body according to claim 1, wherein the positioning groove is located on the side of the second wiring plate facing the first wiring plate, and the positioning projection is located on the side of the first wiring plate facing the second wiring plate.

9. An insertion section comprising a first insertion plate and a second insertion plate, and Wiring section including the first wiring plate and the second wiring plate Equipped with, A gap is formed between the first insertion plate and the second insertion plate, and the first and second insertion plates together form an insertion slot into which a matching terminal is inserted. The first wiring plate is electrically connected to the first insertion plate, and the second wiring plate is electrically connected to the second insertion plate, and the first wiring plate has a first outer surface and a first inner surface, and the second wiring plate has a second outer surface and a second inner surface, and a portion of the first inner surface and a portion of the second inner surface are in contact with each other, and a portion of the first wiring plate and a portion of the second wiring plate are together configured to connect to the core of the electric wire, A terminal body for high-voltage connection, wherein the first insertion plate further comprises a first front end surface facing forward, and the second insertion plate further comprises a second front end surface facing forward, and the first insertion plate has a first limiting projection convexly provided on its first front end surface, and / or the second insertion plate has a second limiting projection convexly provided on its second front end surface.

10. The terminal comprises a limiting member and a terminal body according to any one of claims 1 to 9, The limiting member includes a limiting structure and a bonding structure, The matching structure is fixedly aligned with the mounting structure provided on the terminal body. The restricting structure is a connecting terminal positioned across the gap between the first insertion plate and the second insertion plate.

11. The connection terminal according to claim 10, wherein the limiting structure comprises a first panel, a limiting plate, and a second panel, the connecting structure comprises a first hook and a second hook, the first panel and the second panel are separated from each other and facing each other, the limiting plate is configured to connect the first panel and the second panel, the first hook is connected to the first panel, the second hook is connected to the second panel, the insertion portion is positioned between the first panel and the second panel, and the first hook and the second hook are each hooked onto a mounting structure.

12. The connection terminal according to claim 11, wherein the mounting structure comprises at least one first restricting groove provided at the edge end of the first insertion plate and at least one second restricting groove provided at the edge portion of the second insertion plate, a first restricting lug provided at the bottom of the first restricting groove, a second restricting lug provided at the bottom of the second restricting groove, the first hook fitted over the first restricting lug, and the second hook fitted over the second restricting lug.

13. The connection terminal according to claim 12, wherein the first panel, the limiting plate, and the second panel all form a U-shaped structure, and the limiting plate is positioned at the front end of the terminal body.

14. The connection terminal according to claim 13, wherein the limiting member is provided with a fixing hole, and a limiting projection is provided in a convex shape on the front end surface of the insertion portion, and the limiting projection is inserted into the fixing hole.

15. The connection terminal according to claim 13, wherein the limiting plate is spaced apart from the front end surface of the terminal body.

16. The connection terminal according to claim 12, wherein two limiting plates are provided, and the first panel, the second panel, and the two limiting plates together enclose an annular structure, and the two limiting plates are positioned on the left and right sides of the insertion portion, respectively.

17. The connector terminal according to claim 10, further comprising an elastic contact member disposed between the first insertion plate and the second insertion plate, wherein the elastic contact member is connected to the first insertion plate and electrically connected to the first insertion plate, and / or is connected to a second inner surface and electrically connected to the second insertion plate, and the elastic contact member is capable of elastically contacting the mating terminal and being electrically connected to the mating terminal when the mating terminal is inserted into the insertion slot.

18. The elastic contact member is provided with a clamp hole, the connection terminal further comprises a clamp block, the clamp block is arranged convexly on the side of the first insertion plate facing the second insertion plate, or convexly on the side of the second insertion plate facing the first insertion plate, and the clamp block is inserted into the clamp hole to form a crimping fit, as described in claim 17.

19. A sheet material used for manufacturing a terminal body according to any one of claims 1 to 8, wherein the sheet material is flat and plastically deformable, and comprises an insertion portion and a wiring portion, the insertion portion comprising a spacing groove extending toward the wiring portion, the spacing groove separating the insertion portion into a first insertion plate and a second insertion plate, the wiring portion comprising a first wiring plate, a second wiring plate, and a connecting bridge corresponding to the spacing groove, the first insertion plate extending continuously from the first insertion plate, and the second insertion plate extending continuously from the second insertion plate.

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