connection terminal
Patent Information
- Application Number
- CN202521586616.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-28
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-07-28
AI Technical Summary
这类连接端子的铜或铜合金用量大,产品成本高
[0028] This invention divides the connecting terminal into a conductive element that performs an electrical connection and a retaining sleeve that performs a mechanical retention function. This allows for the use of different materials to manufacture the conductive element and the retaining sleeve. Specifically, the conductive element can be manufactured using a first material (e.g., copper or a copper alloy), while the retaining sleeve can be manufactured using a second material (e.g., stainless steel). Thus, this invention provides product performance equivalent to a connecting terminal made entirely of a single material such as copper or a copper alloy, while reducing the amount of copper or copper alloy used and also reducing the product thickness. Furthermore, by placing the unlocking part on the retaining sleeve, this invention further reduces the amount of copper or copper alloy used compared to placing the unlocking part on the conductive element.
Smart Images

Figure CN224721212U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a connection terminal. Background Technology
[0002] In existing technologies, the connecting terminals are made entirely of copper or copper alloys. These terminals use a large amount of copper or copper alloy, resulting in high product costs. 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 connecting terminal is provided, comprising a conductive element and a retaining sleeve. The conductive element includes an electrical contact portion and a crimping portion connected to the electrical contact portion. The electrical contact portion includes a base plate. The retaining sleeve is fitted onto the electrical contact portion of the conductive element and includes a resilient pressing portion facing the base plate. An insertion cavity for inserting a plug is defined between the resilient pressing portion and the base plate. The crimping portion is used to crimp onto a wire, and the electrical contact portion is used to make electrical contact with an inserted plug. The resilient pressing portion is used to press the plug toward the base plate with a predetermined contact pressure to ensure reliable electrical contact between the plug and the base plate. A resilient latch is formed on the base plate, the resilient latch being adapted to move between a locked position engaged with an inserted plug and an unlocked position at least partially disengaged. An unlocking portion is formed on the resilient pressing portion, the resilient latch being adapted to move from the locked position to the unlocked position under the pressure of the unlocking portion.
[0005] According to an exemplary embodiment of the present invention, the conductive element is an integral piece made of a first material, and the retaining sleeve is an integral piece made of a second material.
[0006] According to another exemplary embodiment of the present invention, the first material is copper or a copper alloy, and the second material is stainless steel.
[0007] According to another exemplary embodiment of the present invention, the resilient latch is formed as a resilient cantilever with a locking structure, the resilient cantilever extending longitudinally from its connecting end along the connecting terminal to its free end. The locking structure is used to engage with a locking engagement structure on the plug, so that the resilient latch is held in the locked position, thereby locking the plug in the insertion cavity. The free end of the resilient cantilever extends relative to the insertion end of the plug, such that the resilient cantilever is adapted to be abutted and pushed by the unlocking part to resiliently deflect away from the plug around the connecting end of the resilient cantilever to the unlocked position, thereby releasing the resilient latch from locking the plug.
[0008] According to another exemplary embodiment of the present invention, the locking structure is one of the locking protrusion and the locking hole, and the locking engagement structure is the other of the locking protrusion and the locking hole.
[0009] According to another exemplary embodiment of the present invention, the locking structure is the locking protrusion, and the locking engagement structure is the locking hole.
[0010] According to another exemplary embodiment of the present invention, the electrical contact portion includes a pair of sidewalls spaced apart and opposite each other in the lateral direction of the connecting terminal. A base plate is connected between the bottoms of the pair of sidewalls, and the base plate has contact protrusions formed for electrical contact with the plug.
[0011] According to another exemplary embodiment of the present invention, a pair of contact protrusions are formed on the base plate, the pair of contact protrusions extending longitudinally along the connecting terminal and spaced apart laterally from the connecting terminal. The elastic cantilever is located between the pair of contact protrusions.
[0012] According to another exemplary embodiment of the present invention, the retaining sleeve includes a pair of side plates, respectively fixed to the pair of sidewalls of the electrical contact portion. The elastic pressing portion is connected between the tops of the pair of side plates.
[0013] According to another exemplary embodiment of the present invention, the resilient pressing portion includes a pressing plate and a pair of resilient arms. The pressing plate is adapted to press against the top surface of the plug. The pressing plate extends longitudinally from its tail end along the connecting terminal to its front end and is at least partially located between the pair of contact protrusions. The unlocking portion is formed at the front end of the pressing plate and is adapted to be pressed toward the resilient arms. One side of the pair of resilient arms is connected to both sides of the pressing plate, and the other side is connected to a pair of side plates of the electrical contact portion.
[0014] According to another exemplary embodiment of the present invention, the unlocking part has a first arm, a second arm, and a transition portion connecting the first arm and the second arm. The first arm extends from the pressing plate away from the elastic cantilever to the transition portion. The second arm extends from the transition portion toward the elastic cantilever to its abutting end. The abutting end is used to abut against the elastic cantilever.
[0015] According to another exemplary embodiment of the present invention, the unlocking part has a U-shaped cross-section.
[0016] According to another exemplary embodiment of the present invention, a window is provided on the base plate, and the connecting end of the elastic cantilever is connected to one end of the window and can elastically deflect around its connecting end in the window.
[0017] According to another exemplary embodiment of the present invention, a limiting portion is formed on the second arm of the unlocking portion, located between the abutting end of the unlocking portion and the transition portion. The limiting portion is larger in the lateral direction of the connecting terminal than the window in the same direction, so as to limit the distance by which the unlocking portion is pressed toward the elastic cantilever.
[0018] According to another exemplary embodiment of the present invention, the dimension of the abutting end of the unlocking part in the lateral direction of the connecting terminal is smaller than the dimension of the window in the same direction.
[0019] According to another exemplary embodiment of the present invention, the dimension of the abutting end of the unlocking part in the lateral direction of the connecting terminal is greater than or equal to the dimension of the elastic cantilever in the same direction.
[0020] According to another exemplary embodiment of the present invention, the pressing plate is provided with a pair of slots, the pair of slots being spaced apart laterally on the connecting terminal and extending a portion of the length of the pressing plate from the front end of the pressing plate backward, such that the pressing plate has a cantilever section. The unlocking part is connected to the front end of the cantilever section.
[0021] According to another exemplary embodiment of the present invention, at least one rib is formed on the bottom surface of the portion of the pressing plate located between its tail end and the overhanging section, the at least one rib being adapted to press against the top surface of the plug.
[0022] According to another exemplary embodiment of the present invention, a pair of side plates of the retaining sleeve and a pair of side walls of the electrical contact portion are respectively provided with snap-fit structures and snap-fit mating structures. The pair of side plates are fixed to the pair of side walls by snap-fitting through the snap-fit structures and snap-fit mating structures.
[0023] According to another exemplary embodiment of the present invention, the snap-fit structure includes one of a snap claw and a snap claw groove, and the snap-fit mating structure includes the other of the snap claw and the snap claw groove.
[0024] According to another exemplary embodiment of the present invention, at least one of the claws is provided on a pair of side plates of the retaining sleeve, and at least one claw groove is provided on a pair of side walls of the electrical contact portion.
[0025] According to another exemplary embodiment of the present invention, the claw groove extends from a pair of sidewalls of the electrical contact portion to the base plate, and the bottom of the pair of sideplates of the retaining sleeve is formed with feet, which are inserted into the claw groove and engaged with the base plate.
[0026] According to another exemplary embodiment of the present invention, a pair of side plates of the retaining sleeve are respectively fixed to the inner side of a pair of side walls of the electrical contact portion.
[0027] According to another exemplary embodiment of the present invention, the conductive element includes a connecting portion connected between the electrical contact portion and the pressure wire portion.
[0028] This invention divides the connecting terminal into a conductive element that performs an electrical connection and a retaining sleeve that performs a mechanical retention function. This allows for the use of different materials to manufacture the conductive element and the retaining sleeve. Specifically, the conductive element can be manufactured using a first material (e.g., copper or a copper alloy), while the retaining sleeve can be manufactured using a second material (e.g., stainless steel). Thus, this invention provides product performance equivalent to a connecting terminal made entirely of a single material such as copper or a copper alloy, while reducing the amount of copper or copper alloy used and also reducing the product thickness. Furthermore, by placing the unlocking part on the retaining sleeve, this invention further reduces the amount of copper or copper alloy used compared to placing the unlocking part on the conductive element.
[0029] 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
[0030] Figure 1 A perspective view of a connection terminal according to an exemplary embodiment of this application is shown; Figure 2 show Figure 1 Exploded view of the connection terminals; Figure 3 show Figure 2 A partial enlarged view of the retaining sleeve of the connecting terminal in the diagram; Figure 4 show Figure 1 A lateral perspective sectional view of the connecting terminals shown; Figure 5 The display plug is fully inserted. Figure 1 A three-dimensional schematic diagram of the insertion cavity of the connecting terminal shown; Figure 6 yes Figure 5 A longitudinal three-dimensional sectional view; Figure 7 yes Figure 5 A transverse three-dimensional sectional view. Detailed Implementation
[0031] 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.
[0032] 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.
[0033] According to a general technical concept of the present invention, a connection terminal is provided. The connection terminal includes a conductive element and a retaining sleeve. The conductive element includes an electrical contact portion and a crimping portion connected to the electrical contact portion. The electrical contact portion includes a base plate. The retaining sleeve is fitted onto the electrical contact portion of the conductive element and includes a resilient pressing portion facing the base plate. An insertion cavity for inserting a plug is defined between the resilient pressing portion and the base plate. The crimping portion is used to crimp onto a wire, and the electrical contact portion is used to make electrical contact with an inserted plug. The resilient pressing portion is used to press the plug toward the base plate with a predetermined contact pressure to ensure reliable electrical contact between the plug and the base plate. A resilient latch is formed on the base plate, the resilient latch being adapted to move between a locked position engaged with the inserted plug and an unlocked position at least partially disengaged. An unlocking portion is formed on the resilient pressing portion, the resilient latch being adapted to move from the locked position to the unlocked position under the pressure of the unlocking portion.
[0034] Figure 1 This diagram shows a perspective view of a connection terminal according to an exemplary embodiment of the present application. Figure 2 show Figure 1 An exploded view of the connection terminals. Figure 3 show Figure 2 A partial enlarged view of the retaining sleeve of the connecting terminal. Figure 4 show Figure 1 The diagram shows a lateral perspective sectional view of the connection terminal. Figure 5 The display plug is fully inserted. Figure 1 A three-dimensional schematic diagram of the insertion cavity of the connecting terminal shown. Figure 6 yes Figure 5 A longitudinal three-dimensional sectional view. Figure 7 yes Figure 5 A transverse three-dimensional sectional view.
[0035] like Figures 1 to 7As shown, in an exemplary embodiment of this utility model, a connection terminal 1 is disclosed. The connection terminal 1 includes a conductive element 11 and a retaining sleeve 12. The conductive element 11 includes an electrical contact portion 100 and a crimping portion 120 connected to the electrical contact portion 100. The electrical contact portion 100 includes a base plate 101. The retaining sleeve 12 is fitted onto the electrical contact portion 100 of the conductive element 11 and includes an elastic pressing portion 201 facing the base plate 101. An insertion cavity 160 is defined between the elastic pressing portion 201 and the base plate 101, allowing insertion of a plug 2. The crimping portion 120 is used to crimp onto a wire. The electrical contact portion 100 is used to make electrical contact with the inserted plug 2. The elastic pressing portion 201 is used to press the plug 2 toward the base plate 101 with a predetermined contact pressure to ensure reliable electrical contact between the plug 2 and the base plate 101. A resilient latch 113 is formed on the base plate 101, the resilient latch 113 being adapted to move between a locked position engaged with the inserted plug 2 and an unlocked position at least partially disengaged. An unlocking portion 213 is formed on the resilient pressing portion 201. The resilient latch 113 is adapted to move from the locked position to the unlocked position under the pressure of the unlocking portion 213.
[0036] like Figures 1 to 7 As shown in the illustrated embodiment, the conductive element 11 is a single piece made of a first material, and the retaining sleeve 12 is a single piece made of a second material.
[0037] like Figures 1 to 7 As shown in the illustrated embodiment, the first material is copper or a copper alloy, and the second material is stainless steel.
[0038] like Figures 1 to 7 As shown in the illustrated embodiment, the resilient latch 113 is formed as a resilient cantilever 131 with a locking structure. The resilient cantilever 131 extends longitudinally from its connecting end to its free end along the connecting terminal 1. The locking structure is used to engage with a locking engagement structure on the plug 2 so that the resilient latch 113 is held in the locked position, thereby locking the plug 2 in the insertion cavity 160. The free end of the resilient cantilever 131 extends relative to the insertion end of the plug 2, so that the resilient cantilever 131 is adapted to be abutted and pushed by the unlocking part 213 to elastically deflect away from the connecting end of the resilient cantilever 131 from the plug 2 to the unlocked position, thereby releasing the resilient latch 113 from locking the plug 2.
[0039] like Figures 1 to 7 As shown in the illustrated embodiment, the locking structure is one of the locking protrusion 132 and the locking hole 21, and the locking engagement structure is the other of the locking protrusion 132 and the locking hole 21.
[0040] like Figures 1 to 7 As shown in the illustrated embodiment, the locking structure is a locking protrusion 132, and the locking engagement structure is a locking hole 21.
[0041] like Figures 1 to 7 As shown in the illustrated embodiment, the electrical contact portion 100 includes a pair of sidewalls 102, which are spaced apart from each other in the lateral direction of the connection terminal 1. A base plate 101 is connected between the bottoms of the pair of sidewalls 102. Contact protrusions 107 for electrical contact with the plug 2 are formed on the base plate 101.
[0042] like Figures 1 to 7 As shown in the illustrated embodiment, a pair of contact protrusions 107 are formed on the base plate 101. The pair of contact protrusions 107 extend longitudinally along the connecting terminal 1 and are spaced apart laterally from the connecting terminal 1. An elastic cantilever 131 is located between the pair of contact protrusions 107.
[0043] like Figures 1 to 7 As shown in the illustrated embodiment, the retaining sleeve 12 includes a pair of side plates 202, which are respectively fixed to a pair of sidewalls 102 of the electrical contact portion 100. An elastic pressing portion 201 is connected between the tops of the pair of side plates 202.
[0044] like Figures 1 to 7 As shown, in the illustrated embodiment, the resilient pressing portion 201 includes a pressing plate 211 and a pair of resilient arms 212. The pressing plate 211 is adapted to press against the top surface of the plug 2. The pressing plate 211 extends longitudinally from its tail end along the connecting terminal 1 to its front end and is at least partially located between a pair of contact protrusions 107. An unlocking portion 213 is formed at the front end of the pressing plate 211 and is adapted to be pressed toward the resilient cantilever 131. One side of the pair of resilient arms 212 is connected to both sides of the pressing plate 211, and the other side is connected to a pair of side plates 202 of the electrical contact portion 100.
[0045] like Figures 1 to 7 As shown in the illustrated embodiment, the unlocking part 213 has a first arm 231, a second arm 232, and a transition part 233 connecting the first arm 231 and the second arm 232. The first arm 231 extends from the pressing plate 211 away from the elastic cantilever 131 to the transition part 233. The second arm 232 extends from the transition part 233 toward the elastic cantilever 131 to its abutting end 234, which is used to abut against the elastic cantilever 131.
[0046] like Figures 1 to 7 As shown, in the illustrated embodiment, the unlocking part 213 has a U-shaped cross-section.
[0047] like Figures 1 to 7 As shown in the illustrated embodiment, a window 108 is provided on the base plate 101, and the connecting end of the elastic cantilever 131 is connected to one end of the window 108, and can be elastically deflected around its connecting end in the window 108.
[0048] like Figures 1 to 7As shown in the illustrated embodiment, a limiting portion 235 is formed on the second arm 232 of the unlocking portion 213, located between the abutting end 234 and the transition portion 233 of the unlocking portion 213. The limiting portion 235 is larger in the lateral direction of the connecting terminal 1 than the window 108 is in the same direction, so as to limit the distance by which the unlocking portion 213 is pressed toward the elastic cantilever 131.
[0049] like Figures 1 to 7 As shown, in the illustrated embodiment, the dimension of the abutment end 234 of the unlocking part 213 in the lateral direction of the connecting terminal 1 is smaller than the dimension of the window 108 in the same direction.
[0050] like Figures 1 to 7 As shown, in the illustrated embodiment, the dimension of the abutment end 234 of the unlocking part 213 in the lateral direction of the connecting terminal 1 is greater than or equal to the dimension of the elastic cantilever 131 in the same direction.
[0051] like Figures 1 to 7 As shown in the illustrated embodiment, the pressing plate 211 is provided with a pair of slots 214, which are spaced apart laterally from the connecting terminal 1 and extend a portion of the length of the pressing plate 211 from the front end of the pressing plate 211, so that the pressing plate 211 has a cantilever section 215. The unlocking part 213 is connected to the front end of the cantilever section 215.
[0052] like Figures 1 to 7 As shown, in the illustrated embodiment, at least one rib 209 is formed on the bottom surface of the portion of the pressing plate 211 located between its tail end and the overhanging section 215, the at least one rib 209 being adapted to press against the top surface of the plug 2.
[0053] like Figures 1 to 7 As shown in the illustrated embodiment, a pair of side plates 202 of the retaining sleeve 12 and a pair of side walls 102 of the electrical contact portion 100 are respectively provided with snap-fit structures and snap-fit mating structures. The pair of side plates 202 are fixed to the pair of side walls 102 by snap-fitting with the snap-fit structures and snap-fit mating structures.
[0054] like Figures 1 to 7 As shown in the illustrated embodiment, the snap-fit structure includes one of the snap claw 206 and the snap claw groove 106, and the snap-fit mating structure includes the other of the snap claw 206 and the snap claw groove 106.
[0055] like Figures 1 to 7 As shown in the illustrated embodiment, at least one claw 206 is provided on a pair of side plates 202 of the retaining sleeve 12, and at least one claw groove 106 is provided on a pair of side walls 102 of the electrical contact portion 100.
[0056] like Figures 1 to 7As shown in the illustrated embodiment, the claw groove 106 extends from a pair of sidewalls 102 of the electrical contact portion 100 to the base plate 101, and the bottom of the pair of sideplates 202 of the retaining sleeve 12 is formed with feet 208, which are inserted into the claw groove 106 and engaged with the base plate 101.
[0057] like Figures 1 to 7 As shown, in the illustrated embodiment, a pair of side plates 202 of the retaining sleeve 12 are respectively fixed to the inner side of a pair of side walls 102 of the electrical contact portion 100.
[0058] like Figures 1 to 7 As shown in the illustrated embodiment, the conductive element 11 includes a connecting portion 140 connected between the electrical contact portion 100 and the wire clamping portion 120.
[0059] 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.
[0060] 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.
[0061] 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.
[0062] 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 connecting terminal, characterized in that... include: The conductive element (11) includes an electrical contact portion (100) and a pressure wire portion (120) connected to the electrical contact portion (100), the electrical contact portion (100) including a base plate (101); and A retaining sleeve (12) is fitted onto the electrical contact portion (100) of the conductive element (11) and includes an elastic pressing portion (201) facing the base plate (101), defining an insertion cavity (160) between the elastic pressing portion (201) and the base plate (101) that allows the plug (2) to be inserted. The crimping portion (120) is used to crimp onto the wire, the electrical contact portion (100) is used to make electrical contact with the inserted plug (2), and the elastic pressing portion (201) is used to press the plug (2) toward the base plate (101) with a predetermined contact pressure to ensure reliable electrical contact between the plug (2) and the base plate (101); and Among them, an elastic latch (113) is formed on the base plate (101), the elastic latch (113) being adapted to move between a locked position engaging with the inserted plug (2) and an unlocked position at least partially separated, and an unlocking part (213) is formed on the elastic pressing part (201), the elastic latch (113) being adapted to move from the locked position to the unlocked position under the pressure of the unlocking part (213).
2. The connection terminal according to claim 1, characterized in that: The conductive element (11) is an integral piece made of a first material, and the retaining sleeve (12) is an integral piece made of a second material.
3. The connecting terminal according to claim 2, characterized in that: The first material is copper or a copper alloy, and the second material is stainless steel.
4. The connecting terminal according to claim 2, characterized in that: The elastic latch (113) is formed as an elastic cantilever (131) with a locking structure, the elastic cantilever (131) extending longitudinally from its connecting end along the connecting terminal (1) to its free end; The locking structure engages with a locking mechanism on the plug (2) to hold the resilient latch (113) in the locked position, thereby locking the plug (2) in the insertion cavity (160); and Wherein, the free end of the elastic cantilever (131) extends relative to the insertion end of the plug (2), so that the elastic cantilever (131) is adapted to be abutted by the unlocking part (213) and pushed around the connecting end of the elastic cantilever (131) away from the plug (2) to the unlocking position, thereby releasing the locking of the elastic latch (113) on the plug (2).
5. The connecting terminal according to claim 4, characterized in that: The locking structure is one of the locking protrusion (132) and the locking hole (21), and the locking engagement structure is the other of the locking protrusion (132) and the locking hole (21).
6. The connecting terminal according to claim 5, characterized in that: The locking structure is the locking protrusion (132), and the locking engagement structure is the locking hole (21).
7. The connecting terminal according to claim 4, characterized in that: The electrical contact portion (100) includes a pair of sidewalls (102) spaced apart from each other laterally from the connection terminal (1); and The base plate (101) is connected between the bottoms of the pair of sidewalls (102), and the base plate (101) has contact protrusions (107) for electrical contact with the plug (2).
8. The connecting terminal according to claim 7, characterized in that: A pair of contact protrusions (107) are formed on the base plate (101), the pair of contact protrusions (107) extend longitudinally along the connection terminal (1) and are spaced apart laterally on the connection terminal (1), and the elastic cantilever (131) is located between the pair of contact protrusions (107).
9. The connecting terminal according to claim 8, characterized in that: The retaining sleeve (12) includes a pair of side plates (202) fixed to the pair of sidewalls (102) of the electrical contact portion (100), and the elastic pressing portion (201) is connected between the tops of the pair of side plates (202).
10. The connection terminal according to claim 9, characterized in that, The elastic pressing part (201) includes: A pressing plate (211) adapted to press against the top surface of the plug (2), the pressing plate (211) extending longitudinally from its tail end along the connecting terminal (1) to its front end and at least partially located between the pair of contact protrusions (107), the unlocking portion (213) formed at the front end of the pressing plate (211) and adapted to be pressed toward the resilient cantilever (131); and A pair of elastic arms (212) are connected on one side to both sides of the pressing plate (211) respectively, and on the other side to a pair of side plates (202) of the electrical contact part (100).
11. The connecting terminal according to claim 10, characterized in that: The unlocking part (213) has a first arm (231), a second arm (232) and a transition part (233) connecting the first arm (231) and the second arm (232). The first arm (231) extends from the pressing plate (211) away from the elastic cantilever (131) to the transition part (233). The second arm (232) extends from the transition part (233) toward the elastic cantilever (131) to its abutting end (234), which is used to abut against the elastic cantilever (131).
12. The connecting terminal according to claim 11, characterized in that: The unlocking part (213) has a U-shaped cross section.
13. The connecting terminal according to claim 11, characterized in that: The base plate (101) is provided with a window (108), and the connecting end of the elastic cantilever (131) is connected to one end of the window (108) and can be elastically deflected around its connecting end in the window (108).
14. The connecting terminal according to claim 13, characterized in that: A limiting portion (235) is formed on the second arm (232) of the unlocking part (213), located between the abutting end (234) and the transition portion (233) of the unlocking part (213). The limiting portion (235) is larger in the lateral direction of the connecting terminal (1) than the window (108) in the same direction, so as to limit the distance by which the unlocking part (213) is pressed toward the elastic cantilever (131).
15. The connecting terminal according to claim 14, characterized in that: The size of the abutting end (234) of the unlocking part (213) in the lateral direction of the connecting terminal (1) is smaller than the size of the window (108) in the same direction.
16. The connecting terminal according to claim 15, characterized in that: The dimension of the abutting end (234) of the unlocking part (213) in the transverse direction of the connecting terminal (1) is greater than or equal to the dimension of the elastic cantilever (131) in the same direction.
17. The connecting terminal according to claim 10, characterized in that: The pressing plate (211) is provided with a pair of slots (214), which are spaced apart laterally on the connecting terminal (1) and extend a portion of the length of the pressing plate (211) from the front end of the pressing plate (211) to the rear, so that the pressing plate (211) has a cantilever section (215), and the unlocking part (213) is connected to the front end of the cantilever section (215).
18. The connecting terminal according to claim 17, characterized in that: At least one rib (209) is formed on the bottom surface of the portion of the pressing plate (211) located between its tail end and the overhang section (215), the at least one rib (209) being adapted to press against the top surface of the plug (2).
19. The connecting terminal according to claim 9, characterized in that: The retaining sleeve (12) and the electrical contact portion (100) are respectively provided with a snap-fit structure and a snap-fit engagement structure. The pair of side plates (202) are fixed to the pair of side walls (102) by snap-fitting the snap-fit structure and the snap-fit engagement structure.
20. The connecting terminal according to claim 19, characterized in that: The snap-fit structure includes one of a snap-fit claw (206) and a snap-fit claw groove (106), and the snap-fit mating structure includes the other of the snap-fit claw (206) and the snap-fit claw groove (106).
21. The connecting terminal according to claim 20, characterized in that: At least one of the claws (206) is provided on a pair of side plates (202) of the retaining sleeve (12), and at least one of the claw grooves (106) is provided on a pair of side walls (102) of the electrical contact portion (100).
22. The connecting terminal according to claim 21, characterized in that: The claw groove (106) extends from a pair of sidewalls (102) of the electrical contact portion (100) to the base plate (101). The bottom of a pair of sidewalls (202) of the retaining sleeve (12) is formed with feet (208), which are inserted into the claw groove (106) and engaged with the base plate (101).
23. The connecting terminal according to claim 19, characterized in that: The pair of side plates (202) of the retaining sleeve (12) are respectively fixed to the inner side of the pair of side walls (102) of the electrical contact portion (100).
24. The connecting terminal according to claim 1, characterized in that: The conductive element (11) includes a connecting portion (140) connected between the electrical contact portion (100) and the pressure wire portion (120).