Terminal body, terminal, and connector

Abstract

The utility model discloses a terminal body, terminal and connector. The terminal body includes the opposite sex department for being matched with the opposite sex terminal of insertion. The opposite sex department includes: annular body, has the top wall and bottom wall opposite in height direction and the front side and rear side opposite in longitudinal direction, and two rows of cantilever, including the upper row cantilever and lower row cantilever respectively connected with the top wall and bottom wall front side of annular body. Each row of cantilever includes the multiple cantilever side by side arrangement in the lateral direction, the cantilever extends forward from the front side of annular body along the longitudinal direction, and the contact protrusion is formed on the cantilever, and the contact protrusion on two adjacent cantilevers in each row of cantilever is staggered forward and backward in the longitudinal direction, thereby can greatly reduce the insertion force of opposite sex terminal insertion terminal body. In addition, in the utility model, the riveting process is spliced together and riveted to the welding part of terminal body for terminal shell, and the anti-vibration performance of terminal is improved. The size of terminal is small, and the material is less, and the cost is low.

Description

Technical Field

[0001] This utility model relates to a terminal body, including terminals of the terminal body and a connector including the terminals. More particularly, it relates to a terminal used in high-voltage and high-current applications. Background Technology

[0002] In existing technologies, connectors typically include a housing and terminals housed within the housing. Terminals typically consist of a copper terminal body and a stainless steel terminal shell. The terminal body is used for electrical connection with mating terminals, and the terminal shell is fitted onto the terminal body to lock the terminal within the housing. In existing technologies, the insertion force of the mating terminals into the terminal body is excessive, resulting in low mating life and poor assembly and usage feel. Furthermore, in existing technologies, the splicing parts of the terminal shell are welded, a complex welding process with poor reliability, and prone to cracking under vibration. Laser welding carries the risk of incomplete soldering, while ultrasonic welding carries the risk of vibration-induced cracking, affecting product quality. Additionally, existing terminals are large in size, use a lot of material, and are costly. Moreover, the cantilever strength of existing terminal bodies is insufficient, leading to unreliable and unstable electrical contact and a tendency for plastic deformation. Utility Model Content

[0003] The purpose of this utility model is to solve at least one aspect of the aforementioned problems and defects existing in the prior art.

[0004] According to one aspect of the present invention, a terminal body is provided. The terminal body includes a mating portion for mating with an inserted mating terminal. The mating portion includes: an annular body having a top wall and a bottom wall opposite each other in the height direction, and a front side and a rear side opposite each other in the longitudinal direction; and two rows of cantilevers, including an upper row of cantilevers and a lower row of cantilevers respectively connected to the front sides of the top and bottom walls of the annular body. Each row of cantilevers includes a plurality of cantilevers arranged side-by-side in the transverse direction, the cantilevers extending forward from the front side of the annular body along the longitudinal direction, and contact protrusions formed on the cantilevers. The contact protrusions on adjacent cantilevers in each row are staggered forward and backward in the longitudinal direction to reduce the insertion force of the mating terminal.

[0005] According to an exemplary embodiment of the present invention, the cantilever is a strip extending along the longitudinal direction, and the contact protrusion is a rib extending along the transverse direction.

[0006] According to another exemplary embodiment of the present invention, the cantilever has a front end and a rear end opposite each other in the longitudinal direction, and the contact protrusion is close to the front end of the cantilever.

[0007] According to another exemplary embodiment of the present invention, each row of cantilever arms includes three cantilever arms arranged side by side in the transverse direction, wherein the contact protrusion of the middle cantilever arm is behind or in front of the contact protrusions of the other two cantilever arms.

[0008] According to another exemplary embodiment of the present invention, an inwardly protruding upper positioning protrusion and a lower positioning protrusion are formed on the top wall and bottom wall of the annular body, respectively. The upper positioning protrusion and the lower positioning protrusion are used to abut against the top surface and bottom surface of the inserted mating terminal, respectively, to position the inserted mating terminal.

[0009] According to another exemplary embodiment of the present invention, the annular body further has two sidewalls opposite each other in the lateral direction, a groove is formed on the top of one sidewall of the annular body, and a tongue is formed on the top wall of the annular body to engage with the groove.

[0010] According to another exemplary embodiment of the present invention, the terminal body further includes: a welding part, which is plate-shaped and connected to the rear side of the bottom wall of the annular body, the welding part being used to weld to the flat connection end of the bus or cable for electrical connection with the bus or cable.

[0011] According to another exemplary embodiment of the present invention, a riveting post is formed on the welding portion, the riveting post being adapted to be riveted into a riveting groove on the bottom plate of the terminal housing, so as to rivet and fix the terminal body and the terminal housing together.

[0012] According to another exemplary embodiment of the present invention, the cross-section of the riveting post is circular, square, elliptical, or elongated.

[0013] According to another exemplary embodiment of the present invention, the welding portion is asymmetrical on opposite sides in the lateral direction to ensure that the terminal body is inserted into the connector housing in the correct orientation.

[0014] According to another exemplary embodiment of the present invention, a side wing plate is formed on one of the laterally opposite sides of the welded portion, and no side wing plate is formed on the other side; the side wing plate is used to cooperate with the guide groove in the housing to ensure that the terminal body is inserted into the housing in the correct orientation.

[0015] According to another exemplary embodiment of the present invention, the terminal body is an integrally stamped part.

[0016] According to another aspect of the present invention, a terminal is provided. The terminal includes: the aforementioned terminal body; and a terminal housing, which is fitted onto a mating portion of the terminal body. The terminal housing has a top plate and a bottom plate opposite each other in the height direction and two side plates opposite each other in the lateral direction. Locking springs are formed on the top plate and the bottom plate of the terminal housing, respectively. The locking springs are adapted to engage with the housing of a connector to lock the terminal in the housing.

[0017] According to an exemplary embodiment of the present invention, the terminal body is made of copper or copper alloy, and the terminal shell is made of stainless steel.

[0018] According to another exemplary embodiment of the present invention, an upper row of spring arms corresponding to the upper row of cantilever arms of the terminal body is formed on the top plate of the terminal housing. The end of the upper row of spring arms is adapted to abut against the upper row of cantilever arms to increase the electrical contact force between the upper row of cantilever arms and the mating terminal and to prevent the upper row of cantilever arms from being excessively deformed; and / or a lower row of spring arms corresponding to the lower row of cantilever arms of the terminal body is formed on the bottom plate of the terminal housing. The end of the lower row of spring arms is adapted to abut against the lower row of cantilever arms to increase the electrical contact force between the lower row of cantilever arms and the mating terminal and to prevent the lower row of cantilever arms from being excessively deformed.

[0019] According to another exemplary embodiment of the present invention, the root of the upper row of spring arms is adjacent to the root of the upper row of cantilever arms, and the end of the upper row of spring arms is adjacent to the contact protrusion of the upper row of cantilever arms; and / or the root of the lower row of spring arms is adjacent to the root of the lower row of cantilever arms, and the end of the lower row of spring arms is adjacent to the contact protrusion of the lower row of cantilever arms.

[0020] According to another exemplary embodiment of the present invention, the locking spring on the top plate of the terminal housing is located in front of the upper row of spring arms and adjacent to the end of the upper row of spring arms; the locking spring on the bottom plate of the terminal housing is located in front of the lower row of spring arms and adjacent to the end of the lower row of spring arms.

[0021] According to another exemplary embodiment of the present invention, the terminal housing has a front side and a rear side opposite each other in the longitudinal direction, the root of the locking spring is close to the front side of the terminal housing, and the locking spring extends outward and backward from its root at an angle for guiding the terminal to be inserted into the housing.

[0022] According to another exemplary embodiment of the present invention, the end of the locking spring is parallel to the surface of the top or bottom plate of the terminal housing and is adapted to abut against a step portion inside the housing to lock the terminal in the housing.

[0023] According to another exemplary embodiment of the present invention, one side plate of the terminal housing includes an upper side plate and a lower side plate. A dovetail groove is formed on one of the upper side plate and the lower side plate, and a dovetail buckle is formed on the other side plate. The dovetail buckle engages with the dovetail groove to splice the upper side plate and the lower side plate together.

[0024] According to another exemplary embodiment of the present invention, the terminal housing further has a riveting portion connected to the rear side of the base plate, the riveting portion having two riveting tabs opposite each other in the lateral direction, the two riveting tabs being bent and riveted to both sides of the welding portion of the terminal body respectively.

[0025] According to another exemplary embodiment of the present invention, the terminal housing further has an upper guide spring and a lower guide spring connected to the front side of the top plate and the bottom plate respectively, the upper guide spring and the lower guide spring bent toward the interior of the terminal housing; an outwardly opening conical guide inlet is defined between the upper guide spring and the lower guide spring for guiding mating terminals to be inserted between the upper row cantilever and the lower row cantilever of the terminal body.

[0026] According to another exemplary embodiment of the present invention, the end of the upper guide spring is adjacent to the front end of the upper row of cantilever arms of the terminal body, and the end of the lower guide spring is adjacent to the front end of the lower row of cantilever arms of the terminal body; the ends of the upper guide spring and the lower guide spring are adapted to abut against the top and bottom surfaces of the inserted mating terminal, respectively, to position the inserted mating terminal.

[0027] According to another exemplary embodiment of the present invention, a riveting groove is formed on the bottom plate of the terminal housing, and the riveting post on the terminal body is riveted into the riveting groove to rivet and fix the terminal body and the terminal housing together.

[0028] According to another exemplary embodiment of the present invention, an inwardly protruding rib is formed on the top plate of the terminal housing, and the rib abuts against the top wall of the annular body of the terminal body to reduce the gap between the terminal housing and the terminal body.

[0029] According to another exemplary embodiment of the present invention, the terminal housing is an integrally stamped part.

[0030] According to one aspect of the present invention, a connector is provided. The connector includes: a housing; and the aforementioned terminals, which are inserted into the housing.

[0031] In the foregoing exemplary embodiments of the present invention, the contact protrusions on adjacent cantilever arms in each row of cantilever arms of the terminal body are staggered longitudinally, thereby greatly reducing the insertion force of the mating terminal into the terminal body.

[0032] In some of the foregoing exemplary embodiments of the present invention, the terminal shells are spliced ​​together by a riveting process and riveted to the welded part of the terminal body, thereby improving the vibration resistance of the terminal.

[0033] In some of the foregoing exemplary embodiments of the present invention, the spring arm on the terminal housing can not only improve the contact force between the cantilever on the terminal body and the mating terminal, but also prevent the cantilever from undergoing plastic deformation.

[0034] In some of the foregoing exemplary embodiments of the present invention, the cantilever, spring arm and locking spring of the terminal are arranged in a reasonable manner, which can reduce the size and material usage of the terminal and reduce the manufacturing cost of the terminal.

[0035] Other objects and advantages of the present invention will become apparent from the following description of the invention with reference to the accompanying drawings, and will help to provide a comprehensive understanding of the invention. Attached Figure Description

[0036] Figure 1 This is a perspective view of a terminal body according to an exemplary embodiment of the present invention, viewed from top. Figure 2 This is a perspective view of a terminal body viewed from the bottom according to an exemplary embodiment of the present invention; Figure 3 Showing a horizontal sectional view of a terminal body according to an exemplary embodiment of the present invention; Figure 4 A perspective view of a terminal according to an exemplary embodiment of the present invention is shown; Figure 5 An exploded view of a terminal according to an exemplary embodiment of the present invention is shown; Figure 6 Showing a vertical sectional view of a terminal according to an exemplary embodiment of the present invention; Figure 7 Showing a horizontal cross-sectional view of a connector according to an exemplary embodiment of the present invention; Figure 8 A perspective view of a terminal as viewed from the bottom, according to another exemplary embodiment of the present invention; Figure 9 An exploded view of a terminal, viewed from the bottom, according to another exemplary embodiment of the present invention; Figure 10 An exploded view of a terminal as seen from top, according to another exemplary embodiment of the present invention; Figure 11 A perspective view of a terminal as viewed from the bottom, according to yet another exemplary embodiment of the present invention; Figure 12 An exploded view of a terminal, viewed from the bottom, according to yet another exemplary embodiment of the present invention. Detailed Implementation

[0037] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings. In this specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of this utility model with reference to the accompanying drawings is intended to explain the overall inventive concept of this utility model and should not be construed as a limitation thereof.

[0038] Furthermore, in the following detailed description, numerous specific details are set forth for ease of explanation to provide a thorough understanding of the embodiments disclosed herein. However, it will be apparent that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and apparatuses are illustrated to simplify the figures.

[0039] According to a general technical concept of the present invention, a terminal body is provided. The terminal body includes a mating portion for mating with an inserted mating terminal. The mating portion includes: an annular body having a top wall and a bottom wall opposite each other in the height direction and a front side and a rear side opposite each other in the longitudinal direction; and two rows of cantilevers, including an upper row of cantilevers and a lower row of cantilevers respectively connected to the front sides of the top wall and the bottom wall of the annular body. Each row of cantilevers includes a plurality of cantilevers arranged side by side in the transverse direction, the cantilevers extending forward from the front side of the annular body along the longitudinal direction, and contact protrusions are formed on the cantilevers. The contact protrusions on adjacent cantilevers in each row are staggered forward and backward in the longitudinal direction to reduce the insertion force of the mating terminal.

[0040] According to another general technical concept of the present invention, a terminal is provided. The terminal includes: the aforementioned terminal body; and a terminal housing, which is fitted onto the mating portion of the terminal body. The terminal housing has a top plate and a bottom plate opposite each other in the height direction and two side plates opposite each other in the lateral direction. Locking springs are formed on the top plate and the bottom plate of the terminal housing, respectively. The locking springs are adapted to engage with the housing of a connector to lock the terminal in the housing.

[0041] According to another general technical concept of the present invention, a connector is provided. The connector includes: a housing; and the aforementioned terminals, which are inserted into the housing.

[0042] Figure 1 This diagram shows a perspective view of a terminal body 1 as viewed from top, according to an exemplary embodiment of the present invention. Figure 2 This diagram shows a perspective view of the terminal body 1 as viewed from the bottom according to an exemplary embodiment of the present invention. Figure 3 Showing a horizontal sectional view of terminal body 1 according to an exemplary embodiment of the present invention; Figure 4A perspective view of a terminal according to an exemplary embodiment of the present invention is shown; Figure 5 An exploded view of a terminal according to an exemplary embodiment of the present invention is shown; Figure 6 Showing a vertical sectional view of a terminal according to an exemplary embodiment of the present invention; Figure 7 This shows a horizontal cross-sectional view of a connector according to an exemplary embodiment of the present invention.

[0043] like Figures 1 to 7 As shown, in an exemplary embodiment of the present invention, a terminal body 1 is disclosed. The terminal body 1 includes a mating portion 10 for mating with an inserted mating terminal (not shown). The mating portion 10 of the terminal body 1 includes an annular body 11 and upper and lower rows of cantilever arms 12. The annular body 11 has a top wall 111 and a bottom wall 112 opposite in the height direction Z, and a front side and a rear side opposite in the longitudinal direction Y. The two rows of cantilever arms 12 include an upper row of cantilever arms 12' and a lower row of cantilever arms 12', which are respectively connected to the front sides of the top wall 111 and the bottom wall 112 of the annular body 11. Each row of cantilever arms 12 includes multiple cantilever arms 12 arranged side by side in the transverse X direction. The cantilever arms 12 extend forward from the front side of the annular body 11 along the longitudinal Y direction. Contact protrusions 12a are formed on the cantilever arms 12. The contact protrusions 12a on two adjacent cantilever arms 12 in each row are staggered in the longitudinal Y direction to reduce the insertion force of the mating terminals. In this application, the shape of the cantilever arms 12 is not limited to the form of straight arms. It can also be other curved or zigzag elastic arm designs, as long as the other end of the elastic arm is set away from the annular body 11, it is considered to extend forward along the longitudinal Y direction.

[0044] like Figures 1 to 7 As shown, in the illustrated embodiment, the cantilever 12 is a strip extending longitudinally along the Y direction, and the contact protrusion 12a is a rib extending transversely along the X direction.

[0045] like Figures 1 to 7 As shown, in the illustrated embodiment, the cantilever 12 has a front end and a rear end opposite each other in the longitudinal Y direction, and the contact protrusion 12a is close to the front end of the cantilever 12.

[0046] like Figures 1 to 7 As shown in the illustrated embodiment, each row of cantilever 12 includes three cantilever 12 arranged side by side in the transverse direction X, with the contact protrusion 12a of the middle cantilever 12 located behind or in front of the contact protrusions 12a of the other two cantilever 12. However, the present invention is not limited to the illustrated embodiment; for example, each row of cantilever 12 may include four, five, or more cantilever 12 arranged side by side.

[0047] like Figures 1 to 7As shown in the illustrated embodiment, an inwardly protruding upper positioning protrusion 111b and lower positioning protrusion 112b are formed on the top wall 111 and bottom wall 112 of the annular body 11, respectively. The upper positioning protrusion 111b and lower positioning protrusion 112b are used to abut against the top and bottom surfaces of the inserted mating terminals, respectively, to position the inserted mating terminals.

[0048] like Figures 1 to 7 As shown in the illustrated embodiment, the annular body 11 also has two sidewalls 113 opposite each other in the transverse X direction, a groove 113a is formed on the top of one sidewall 113 of the annular body 11, and a tongue 111a that engages with the groove 113a is formed on the top wall 111 of the annular body 11.

[0049] like Figures 1 to 7 As shown in the illustrated embodiment, the terminal body 1 further includes a welding portion 13, which is plate-shaped and connected to the rear side of the bottom wall 112 of the annular body 11. The welding portion 13 is used to weld to the flat connection end of a bus (not shown) or a cable (not shown) for electrical connection with the bus or cable.

[0050] like Figures 1 to 7 As shown, in the illustrated embodiment, the solder joint 13 is asymmetrical on opposite sides in the transverse X direction to ensure that the terminal body 1 is inserted into the connector housing 3 in the correct orientation.

[0051] like Figures 1 to 7 As shown in the illustrated embodiment, a side wing plate 131 is formed on one of the two laterally opposite sides of the welding portion 13, while no side wing plate 131 is formed on the other side. The side wing plate 131 of the welding portion 13 is used to cooperate with the guide groove 31 in the housing 3 to ensure that the terminal body 1 is inserted into the housing 3 in the correct orientation.

[0052] like Figures 1 to 7 As shown in the illustrated embodiment, terminal body 1 is a one-piece stamped part. This reduces manufacturing costs and improves manufacturing efficiency.

[0053] like Figures 1 to 7 As shown, in another exemplary embodiment of this utility model, a terminal is also disclosed. The terminal includes a terminal body 1 and a terminal shell 2. The terminal shell 2 is fitted onto the mating portion 10 of the terminal body 1. The terminal shell 2 has two side plates 23 that are opposite to a top plate 21 and a bottom plate 22 in the height direction Z and opposite to each other in the transverse direction X. Locking springs 25 are formed on the top plate 21 and the bottom plate 22 of the terminal shell 2, respectively. The locking springs 25 are adapted to engage with the housing 3 of the connector to lock the terminal in the housing 3.

[0054] like Figures 1 to 7 As shown in the illustrated embodiment, terminal body 1 is made of copper or copper alloy, and terminal shell 2 is made of stainless steel.

[0055] like Figures 1 to 7 As shown in the illustrated embodiment, an upper row of spring arms 24' corresponding to the upper row of cantilever arms 12' of the terminal body 1 is formed on the top plate 21 of the terminal housing 2. The end of the upper row of spring arms 24' is adapted to abut against the upper row of cantilever arms 12' to increase the electrical contact force between the upper row of cantilever arms 12' and the mating terminal and to prevent excessive deformation of the upper row of cantilever arms 12'. A lower row of spring arms 24" corresponding to the lower row of cantilever arms 12" of the terminal body 1 is formed on the bottom plate 22 of the terminal housing 2. The end of the lower row of spring arms 24" is adapted to abut against the lower row of cantilever arms 12" to increase the electrical contact force between the lower row of cantilever arms 12" and the mating terminal and to prevent excessive deformation of the lower row of cantilever arms 12".

[0056] like Figures 1 to 7 As shown in the illustrated embodiment, the root of the upper row spring arm 24' is adjacent to the root of the upper row cantilever arm 12', and the end of the upper row spring arm 24' is adjacent to the contact protrusion 12a of the upper row cantilever arm 12'. The root of the lower row spring arm 24" is adjacent to the root of the lower row cantilever arm 12", and the end of the lower row spring arm 24" is adjacent to the contact protrusion 12a of the lower row cantilever arm 12".

[0057] like Figures 1 to 7 As shown in the illustrated embodiment, the locking spring piece 25 on the top plate 21 of the terminal housing 2 is located in front of the upper row spring arm 24' and adjacent to its end. The locking spring piece 25 on the bottom plate 22 of the terminal housing 2 is located in front of the lower row spring arm 24' and adjacent to its end.

[0058] like Figures 1 to 7 As shown in the illustrated embodiment, the terminal housing 2 has a front side and a rear side opposite each other in the longitudinal Y direction. The root of the locking spring 25 is close to the front side of the terminal housing 2. The locking spring 25 extends outward and backward from its root to guide the terminal insertion into the housing 3.

[0059] like Figures 1 to 7 As shown, in the illustrated embodiment, the end of the locking spring 25 is parallel to the surface of the top plate 21 or bottom plate 22 of the terminal housing 2 and is adapted to abut against a step portion (not shown) inside the housing 3 to lock the terminal in the housing 3.

[0060] like Figures 1 to 7 As shown in the illustrated embodiment, one side plate 23 of the terminal housing 2 includes an upper side plate 231 and a lower side plate 232. A dovetail groove 23b is formed on one of the upper side plate 231 and the lower side plate 232, and a dovetail buckle 23a is formed on the other. The dovetail buckle 23a engages with the dovetail groove 23b to splice the upper side plate 231 and the lower side plate 232 together.

[0061] like Figures 1 to 7As shown in the illustrated embodiment, the terminal housing 2 also has a riveting portion 27 connected to the rear side of the base plate 22. The riveting portion 27 has two riveting tabs 27a opposite each other in the transverse X direction. The two riveting tabs 27a are respectively bent and riveted to both sides of the welding portion 13 of the terminal body 1. The riveting portion 27 is usually fixed to the welding portion 13 of the terminal body 1. However, the position of the riveting portion 27 can be appropriately varied. For example, the riveting portion 27 can be fixed to the annular body 11 of the terminal body 1.

[0062] like Figures 1 to 7 As shown in the illustrated embodiment, the terminal housing 2 further has an upper guide spring 26' and a lower guide spring 26" connected to the front sides of the top plate 21 and the bottom plate 22, respectively. The upper guide spring 26' and the lower guide spring 26" are bent inward toward the interior of the terminal housing 2. An outwardly flared tapered guide inlet is defined between the upper guide spring 26' and the lower guide spring 26" for guiding the mating terminal to be inserted between the upper row of cantilever arms 12' and the lower row of cantilever arms 12" of the terminal body 1.

[0063] like Figures 1 to 7 As shown in the illustrated embodiment, the end of the upper guide spring 26' is adjacent to the front end of the upper row cantilever 12' of the terminal body 1, and the end of the lower guide spring 26" is adjacent to the front end of the lower row cantilever 12" of the terminal body 1. The ends of the upper guide spring 26' and the lower guide spring 26" are adapted to abut against the top and bottom surfaces of the inserted mating terminal, respectively, to position the inserted mating terminal.

[0064] like Figures 1 to 7 As shown in the illustrated embodiment, the terminal housing 2 is a one-piece stamped part. This reduces manufacturing costs and improves manufacturing efficiency.

[0065] like Figures 1 to 7 As shown, in another exemplary embodiment of this utility model, a connector is also disclosed. The connector includes a housing 3 and the aforementioned terminals. The terminals are inserted into the housing 3.

[0066] Figure 8 A perspective view of a terminal as viewed from the bottom, according to another exemplary embodiment of the present invention; Figure 9 An exploded view of a terminal, viewed from the bottom, according to another exemplary embodiment of the present invention; Figure 10 An exploded view of a terminal as viewed from top, according to another exemplary embodiment of the present invention.

[0067] Figures 8 to 10 The terminals shown are Figures 1 to 7 The main difference between the terminals shown is the addition of a riveting structure and a raised rib positioning structure; other features are the same. Figures 1 to 7 The terminals shown are basically the same.

[0068] like Figures 8 to 10 As shown in the illustrated embodiment, a riveting post 13a is formed on the welding portion 13 of the terminal body 1. The riveting post 13a is adapted to be riveted into the riveting groove 22a on the bottom plate 22 of the terminal housing 2 to rivet and fix the terminal body 1 and the terminal housing 2 together.

[0069] like Figures 8 to 10 As shown in the illustrated embodiment, the cross-sections of the riveting post 13a and the riveting groove 22a can be circular, square, elliptical, or elongated.

[0070] like Figures 8 to 10 As shown in the illustrated embodiment, a riveting groove 22a is formed on the bottom plate 22 of the terminal housing 2, and the riveting post 13a on the terminal body 1 is riveted into the riveting groove 22a to rivet and fix the terminal body 1 and the terminal housing 2 together.

[0071] like Figures 8 to 10 As shown in the illustrated embodiment, an inwardly protruding rib 21a is formed on the top plate 21 of the terminal housing 2. The rib 21a abuts against the top wall 111 of the annular body 11 of the terminal body 1 to reduce the gap between the terminal housing 2 and the terminal body 1.

[0072] Figure 11 A perspective view of a terminal as viewed from the bottom, according to yet another exemplary embodiment of the present invention; Figure 12 An exploded view of a terminal, viewed from the bottom, according to yet another exemplary embodiment of the present invention.

[0073] Figures 11 to 12 The terminals shown are Figures 8 to 10 The terminals shown differ only in the extension direction of the solder portion 13; other features are the same. Figures 8 to 10 The terminals shown are basically the same.

[0074] exist Figures 8 to 10 In the terminal shown, the solder portion 13 extends laterally along the X-shape, making the terminal L-shaped; this type of terminal is commonly referred to as a 90-degree terminal. Figures 11 to 12 In the terminal shown, the welded portion 13 extends longitudinally; this type of terminal is commonly referred to as a 180-degree terminal.

[0075] Those skilled in the art will understand that the embodiments described above are exemplary and can be improved upon. The structures described in the various embodiments can be freely combined without causing structural or principle conflicts, and these changes should fall within the protection scope of this utility model.

[0076] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to illustrate preferred embodiments of the present invention and should not be construed as a limitation thereof.

[0077] While some embodiments of the general concept of this utility model have been shown and described, those skilled in the art will understand that changes may be made to these embodiments without departing from the principles and spirit of the general concept of this utility model, the scope of which is defined by the claims and their equivalents.

[0078] It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude multiple elements. Furthermore, any reference numerals in the claims should not be construed as limiting the scope of this invention.

Claims

1. A terminal body, characterized in that, include: The mating part (10) is used to mate with the inserted mating terminal. The mating part (10) includes: The annular body (11) has a top wall (111) and a bottom wall (112) opposite each other in the height direction (Z) and a front side and a rear side opposite each other in the longitudinal direction (Y); and Two rows of cantilever arms (12), including an upper row of cantilever arms (12') and a lower row of cantilever arms (12") respectively connected to the front sides of the top wall (111) and bottom wall (112) of the annular body (11), Each row of cantilever (12) includes a plurality of cantilever (12) arranged side by side in the transverse (X) direction, the cantilever (12) extending forward from the front side of the annular body (11) along the longitudinal (Y) direction, and a contact protrusion (12a) is formed on the cantilever (12). The contact protrusions (12a) on two adjacent cantilever (12) in each row of cantilever (12) are staggered in the longitudinal (Y) direction to reduce the insertion force of the mating terminal.

2. The terminal body according to claim 1, characterized in that: The cantilever (12) is a strip extending along the longitudinal direction (Y), and the contact protrusion (12a) is a rib extending along the transverse direction (X).

3. The terminal body according to claim 1, characterized in that: The cantilever (12) has a front end and a rear end opposite each other in the longitudinal direction (Y), and the contact protrusion (12a) is close to the front end of the cantilever (12).

4. The terminal body according to claim 1, characterized in that: Each row of cantilever (12) includes three cantilever (12) arranged side by side in the transverse (X) direction, wherein the contact protrusion (12a) of the middle cantilever (12) is behind or in front of the contact protrusions (12a) of the other two cantilever (12).

5. The terminal body according to claim 1, characterized in that: An inwardly protruding upper positioning protrusion (111b) and lower positioning protrusion (112b) are formed on the top wall (111) and bottom wall (112) of the annular body (11), respectively. The upper positioning protrusion (111b) and the lower positioning protrusion (112b) are used to abut against the top surface and bottom surface of the inserted mating terminal, respectively, to position the inserted mating terminal.

6. The terminal body according to claim 1, characterized in that: The annular body (11) also has two sidewalls (113) opposite each other in the transverse (X) direction, a groove (113a) is formed on the top of one sidewall (113) of the annular body (11), and a tongue (111a) that engages with the groove (113a) is formed on the top wall (111) of the annular body (11).

7. The terminal body according to claim 1, characterized in that, Also includes: The welded part (13) is plate-shaped and connected to the rear side of the bottom wall (112) of the annular body (11). The welding part (13) is used to weld to the flat connection end of the bus or cable for electrical connection with the bus or cable.

8. The terminal body according to claim 7, characterized in that: A rivet post (13a) is formed on the welded part (13), the rivet post (13a) being adapted to be riveted into a rivet groove (22a) on the base plate (22) of the terminal housing (2) to rivet and fix the terminal body (1) and the terminal housing (2) together.

9. The terminal body according to claim 8, characterized in that: The cross-section of the rivet post (13a) is circular, square, elliptical, or elongated.

10. The terminal body according to claim 7, characterized in that: The welded portion (13) is asymmetrical on opposite sides in the transverse (X) direction to ensure that the terminal body (1) is inserted into the connector housing (3) in the correct orientation.

11. The terminal body according to claim 10, characterized in that: A side wing plate (131) is formed on one of the two transverse (X) opposite sides of the welded part (13), while no side wing plate (131) is formed on the other side. The side wing plate (131) is used to cooperate with the guide groove (31) in the housing (3) to ensure that the terminal body (1) is inserted into the housing (3) in the correct orientation.

12. The terminal body according to any one of claims 1-11, characterized in that: The terminal body (1) is an integral stamped part.

13. A terminal, characterized in that, include: Terminal body (1) according to any one of claims 1-12; and The terminal housing (2) is fitted onto the mating part (10) of the terminal body (1). The terminal housing (2) has two side plates (23) opposite to the top plate (21) and the bottom plate (22) in the height direction (Z) and opposite to each other in the lateral direction (X). Locking springs (25) are formed on the top plate (21) and the bottom plate (22) of the terminal housing (2), respectively. The locking springs (25) are adapted to engage with the housing (3) of the connector to lock the terminal in the housing (3).

14. The terminal according to claim 13, characterized in that: The terminal body (1) is made of copper or copper alloy, and the terminal shell (2) is made of stainless steel.

15. The terminal according to claim 13, characterized in that: An upper row of spring arms (24') corresponding to the upper row of cantilever arms (12') of the terminal body (1) is formed on the top plate (21) of the terminal housing (2). The ends of the upper row of spring arms (24') are adapted to abut against the upper row of cantilever arms (12') to increase the electrical contact force between the upper row of cantilever arms (12') and the mating terminal and to prevent the upper row of cantilever arms (12') from being excessively deformed; and / or A lower row spring arm (24) corresponding to the lower row cantilever (12) of the terminal body (1) is formed on the bottom plate (22) of the terminal housing (2). The end of the lower row spring arm (24) is adapted to abut against the lower row cantilever (12) to increase the electrical contact force between the lower row cantilever (12) and the mating terminal and to prevent the lower row cantilever (12) from being excessively deformed.

16. The terminal according to claim 15, characterized in that: The root of the upper row spring arm (24') is adjacent to the root of the upper row cantilever arm (12'), and the end of the upper row spring arm (24') is adjacent to the contact protrusion (12a) of the upper row cantilever arm (12'); and / or The root of the lower row spring arm (24) is adjacent to the root of the lower row cantilever arm (12), and the end of the lower row spring arm (24) is adjacent to the contact protrusion (12a) of the lower row cantilever arm (12).

17. The terminal according to claim 16, characterized in that: The locking spring piece (25) on the top plate (21) of the terminal housing (2) is located in front of the upper spring arm (24') and adjacent to the end of the upper spring arm (24'); The locking spring piece (25) on the bottom plate (22) of the terminal housing (2) is located in front of the lower spring arm (24) and adjacent to the end of the lower spring arm (24).

18. The terminal according to claim 13, characterized in that: The terminal housing (2) has a front side and a rear side opposite each other in the longitudinal direction (Y), the root of the locking spring (25) is close to the front side of the terminal housing (2), and the locking spring (25) extends outward and backward from its root to guide the terminal to be inserted into the housing (3).

19. The terminal according to claim 18, characterized in that: The end of the locking spring (25) is parallel to the surface of the top plate (21) or bottom plate (22) of the terminal housing (2) and is adapted to abut against the step portion inside the housing (3) to lock the terminal in the housing (3).

20. The terminal according to claim 13, characterized in that: One side plate (23) of the terminal housing (2) includes an upper side plate (231) and a lower side plate (232). A dovetail groove (23b) is formed on one of the upper side plate (231) and the lower side plate (232), and a dovetail buckle (23a) is formed on the other side plate. The dovetail buckle (23a) engages with the dovetail groove (23b) to splice the upper side plate (231) and the lower side plate (232) together.

21. The terminal according to claim 13, characterized in that: The terminal housing (2) also has a riveting part (27) connected to the rear side of the base plate (22). The riveting part (27) has two riveting pieces (27a) opposite each other in the transverse (X) direction. The two riveting pieces (27a) are respectively bent and riveted to the two sides of the welding part (13) of the terminal body (1).

22. The terminal according to claim 13, characterized in that: The terminal housing (2) also has an upper guide spring (26') and a lower guide spring (26") connected to the front side of the top plate (21) and the bottom plate (22) respectively, and the upper guide spring (26') and the lower guide spring (26") are bent toward the interior of the terminal housing (2); An outwardly flared tapered guide inlet is defined between the upper guide spring (26') and the lower guide spring (26") for guiding the mating terminal to be inserted between the upper row cantilever (12') and the lower row cantilever (12") of the terminal body (1).

23. The terminal according to claim 22, characterized in that: The end of the upper guide spring (26') is adjacent to the front end of the upper row cantilever (12') of the terminal body (1), and the end of the lower guide spring (26') is adjacent to the front end of the lower row cantilever (12') of the terminal body (1). The ends of the upper guide spring (26') and the lower guide spring (26") are adapted to abut against the top and bottom surfaces of the inserted mating terminal, respectively, to position the inserted mating terminal.

24. The terminal according to claim 13, characterized in that: A riveting groove (22a) is formed on the bottom plate (22) of the terminal housing (2), and the riveting post (13a) on the terminal body (1) is riveted into the riveting groove (22a) to rivet and fix the terminal body (1) and the terminal housing (2) together.

25. The terminal according to claim 13, characterized in that: An inwardly protruding rib (21a) is formed on the top plate (21) of the terminal housing (2), and the rib (21a) abuts against the top wall (111) of the annular body (11) of the terminal body (1) to reduce the gap between the terminal housing (2) and the terminal body (1).

26. The terminal according to any one of claims 13-25, characterized in that: The terminal housing (2) is an integral stamped part.

27. A connector, characterized in that, include: Shell (3); and The terminal according to any one of claims 13-26 is inserted into the housing (3).

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