Wiring terminal and connector

Abstract

A wiring terminal and a connector, relating to the technical field of electrical connectors. The wiring terminal comprises an enclosing portion, the enclosing portion has a cavity, and the cavity is used for a paired terminal to be inserted therein; the enclosing portion includes a first enclosing portion and a second enclosing portion which are located on the two sides of the cavity; and the side of the first enclosing portion facing the second enclosing portion is provided with protrusions, and the protrusions protrude from the first enclosing portion towards the interior of the cavity.

Description

Terminal Blocks and Connectors

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on October 25, 2023, with application number 202322874390.2 and application name “Connection Terminals and Connectors”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of electrical connectors, and in particular to a wiring terminal and a connector. Background Art

[0003] Terminal blocks are accessories used to achieve electrical connections and are widely used in various industrial fields. A terminal block set may consist of a male and female terminal. When the male terminal is inserted into the female terminal, various mechanical and electrical design features ensure a reliable electrical connection and a stable structure between the male and female terminals. Common female terminal designs incorporate elastic contact arms within the female terminal. The deformation of these arms creates positive pressure on the male terminal's contact area, ensuring stable contact and a stable current signal between the male and female terminals.

[0004] Summary of the Invention

[0005] The present application provides a wiring terminal and a connector, which can improve the contact stability of the wiring terminal by providing a protrusion on the inner surface of a side of a first enclosure portion facing the second enclosure portion of the wiring terminal.

[0006] In a first aspect, the present application provides a terminal block, comprising an enclosure, the enclosure having a cavity, the cavity being used to insert a mating terminal; the enclosure comprising a first enclosure and a second enclosure located on both sides of the cavity; a protrusion is provided on the side of the first enclosure facing the second enclosure, the protrusion protruding from the first enclosure toward the cavity. When the mating terminal is inserted into the terminal block, the protrusion can abut against the terminal block, thereby enhancing the stability of the contact between the terminal block and the mating terminal. The mating terminal interacts with the protrusion on the first enclosure of the terminal block. The contact between the top of the terminal block and the mating terminal insertion portion is in the form of the protrusion contacting the surface of the mating terminal. The contact area is smaller, and a larger contact stress can be formed locally at the contact point, thereby improving the stability of the contact between the mating terminal and the terminal block.

[0007] In one possible embodiment, the surface of the protrusion facing the second enclosure is a contact surface, which is used to abut the mating terminal and is a smooth surface. After the inserted portion of the mating terminal enters the cavity of the terminal, the abutment surface of the protrusion on the top of the terminal abuts the mating terminal, forming a stable contact point between the abutment surface and the mating terminal, thereby enhancing the stability of the contact between the mating terminal and the terminal.

[0008] In one possible embodiment, there are multiple protrusions. The multiple protrusions can respectively abut against the mating terminal. The mating terminal and the multiple protrusions on the top of the terminal block interact with each other to form multiple contact points. A larger contact stress can be generated locally at each contact point, thereby improving the contact stability between the mating terminal and the terminal block.

[0009] In one possible embodiment, the direction in which the first enclosing portion faces the second enclosing portion is a first direction, and in the first direction, the height of the protrusion is greater than or equal to 0.05 mm. When the mating terminal and the wiring terminal are inserted and connected, the protrusion can abut against the surface of the mating terminal, and the abutting surface of the protrusion can form a stable contact point with the surface of the mating terminal, thereby improving contact stability.

[0010] In a possible embodiment, the first enclosing portion and the protrusion are in an integrated structure. The integrated structure can simplify the production process of the protrusion and save costs.

[0011] In one possible embodiment, a contact arm is provided on the second enclosure, and the contact arm is located in the cavity; one end of the contact arm is connected to the second enclosure to form a cantilever structure, and a first bulge is provided on the other end of the contact arm. The insertion portion of the mating terminal interacts with the elastic contact arm, applying abutting force to each other, thereby improving the stability of the contact between the mating terminal and the wiring terminal. The first bulge can contact the surface of the mating terminal after the mating terminal is inserted into the wiring terminal. The contact area between the first bulge and the mating terminal is smaller, and a larger contact stress can be formed locally at the contact point between the first bulge and the mating terminal, thereby improving the stability of the contact between the mating terminal and the wiring terminal.

[0012] In one possible embodiment, the protrusion includes a first protrusion and a second protrusion, the direction of the second enclosed portion toward the first enclosed portion is a second direction, and the projection of the first bulge along the second direction is located between the first and second protrusions. The misalignment force between the first bulge and the first and second protrusions can improve the contact stability between the mating terminal and the connecting terminal.

[0013] In one possible embodiment, a support arm is provided on the second enclosure, one end of the support arm being connected to the second enclosure to form a cantilever structure, and the second free end of the support arm abutting the first free end of the contact arm, with the second free end being located on a side of the first free end facing away from the first enclosure. The support arm can support the elastic contact arm, providing a supporting force toward the mating terminal. Due to the support provided by the support arm, the abutment force between the elastic contact arm and the mating terminal is greater.

[0014] In one possible embodiment, the second free end of the support arm is provided with a second convex bump, which abuts the first free end of the contact arm. The surface of the first free end near the support arm abuts the second convex bump, and the elastic contact arm interacts with the second convex bump on the support arm, thereby increasing the contact force between the elastic contact arm and the mating terminal and improving contact stability.

[0015] In one possible embodiment, the enclosure further includes a third enclosure, part of which is located between the first enclosure and the second enclosure. The third enclosure has an extension, and the direction of the second enclosure toward the first enclosure is a second direction. The extension is bent and extends to one side of the first enclosure along the second direction, and the extension abuts against the first enclosure. The extension can abut against the top of the enclosure, applying a force toward the enclosure cavity to the top of the enclosure, thereby preventing the enclosure of the terminal from being pushed open by the mating terminal when the mating terminal is inserted, thereby enhancing the stability of the terminal structure.

[0016] In one possible embodiment, the extension portion includes a bent portion, the bent portion protruding from the first enclosure portion toward one side in the second direction, and abutting the first enclosure portion. The extension portion protruding from the first enclosure portion toward one side in the second direction to form the bent portion provides a foolproof feature, ensuring that the protective cover can only be inserted correctly when the terminal block is connected to the protective cover.

[0017] In one possible embodiment, there are multiple extension portions, and the multiple extension portions are arranged at intervals along a third direction, the third direction is the extension direction of the cavity and the third direction is perpendicular to the second direction, and the extension portion close to the insertion port of the cavity includes the bending portion.

[0018] In one possible embodiment, the terminal block further includes a wire clamp portion connected to the enclosure portion, the wire clamp portion including a first wire clamp portion and a second wire clamp portion, one end of the first wire clamp portion being connected to or integral with one end of the second wire clamp portion, and the other end of the first wire clamp portion and the other end of the second wire clamp portion being close to each other to form a groove-shaped structure. A connecting wire connected to the terminal block can be accommodated between the first wire clamp portion and the second wire clamp portion, and the connecting wire is compressed between the first wire clamp portion and the second wire clamp portion, thereby connecting the connecting wire to the terminal block.

[0019] In one possible embodiment, the wire clamp portion is provided with a groove; the groove is located on the surface of the first wire clamp portion on the side close to the second wire clamp portion, and / or the groove is located on the surface of the second wire clamp portion on the side close to the first wire clamp portion. The groove is used to accommodate the wire to increase the holding force between the wire clamp portion and the wire. The groove can accommodate the connecting wire connected to the terminal to increase the holding force between the wire clamp portion and the connecting wire. The connecting wire is crimped between the first wire clamp portion and the second wire clamp portion, and part of the wire is squeezed into the inside of the groove, which increases the friction between the wire and the wire clamp portion, thereby improving the holding force between the wire clamp portion and the wire.

[0020] In a second aspect, the present application further provides a connector, comprising the connection terminal described in any one of the aforementioned embodiments, and further comprising a mating terminal that matches the connection terminal, the mating terminal being inserted into the cavity of the connection terminal. The connection terminal and the mating terminal are plugged together, and the inserted portion of the mating terminal can enter the connection terminal, thereby achieving a reliable electrical connection between the mating terminal and the connection terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG1 is a schematic diagram of the overall structure of a terminal block provided in an embodiment of the present application;

[0022] FIG2 is a schematic diagram of the internal structure of the terminal block provided in an embodiment of the present application;

[0023] FIG3 is a schematic cross-sectional view of a terminal block according to an embodiment of the present application;

[0024] FIG4 is a side view of a terminal block provided in an embodiment of the present application;

[0025] FIG5 is a schematic diagram of the connection state of the female terminal and the male terminal provided in an embodiment of the present application. DETAILED DESCRIPTION

[0026] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0027] For ease of understanding, the English abbreviations and related technical terms involved in the embodiments of this application are explained and described below.

[0028] It should be clear that the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0029] The terms used in the embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. The singular forms "a", "an", "the" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise.

[0030] It should be understood that the term "and / or" as used herein is simply a term used to describe the existence of three possible relationships between related objects. For example, "A and / or B" can represent the existence of A alone, the existence of both A and B, and the existence of B alone. Furthermore, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0031] It should be understood that the terms “first”, “second”, etc. used in this application are only used for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying an order.

[0032] In the description of this application, the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting this application.

[0033] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect" and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, a conflicting connection or an integrated connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0034] In the prior art, the top contact surface of the female terminal is usually a plane, and the contact with the male terminal is a surface-to-surface contact method, which has the risk of poor contact.

[0035] The present application provides a wiring terminal, as shown in Figure 1, the wiring terminal 10 provided in the present application includes an enclosure 100, and the enclosure 100 has a cavity 200, and the cavity 200 can accommodate the insertion portion of the matching terminal. The present application takes the wiring terminal 10 as a female terminal and the matching terminal as a male terminal as an example. When the male terminal and the female terminal are plugged in and connected, the insertion portion of the male terminal can enter the cavity 200 of the female terminal to achieve contact electrical connection between the male terminal and the female terminal. It should be noted that, in the present application, the name "female terminal" only represents the conventional definition in the field of electrical connectors, and does not represent a specific limitation on the terminal structure.

[0036] In a possible embodiment, referring to Figures 1 to 5, the enclosing portion 100 in the embodiment of the present application includes a first enclosing portion 110 and a second enclosing portion 120 located on both sides of the cavity 200. This application takes the enclosing portion 100 as a square enclosing structure as shown in Figure 1 for illustration. In Figures 1 and 2, the first enclosing portion 110 is located on one side of the cavity 200 in the Z direction, and the second enclosing portion 120 is located on the side opposite to the Z direction of the cavity 200. The enclosing portion 100 can be a square cylindrical structure, the first enclosing portion 110 can be the top of the square cylindrical structure, and the second enclosing portion 120 can be the bottom of the square cylindrical structure.

[0037] Referring to Figure 2 , a protrusion 111 is provided on the side of the first enclosure 110 facing the second enclosure 120. Specifically, the protrusion 111 is provided on the surface of the first enclosure 110 located in the opposite Z direction in Figure 2 . The protrusion 111 projects from the first enclosure 110 toward the cavity 200, meaning that the protrusion direction of the protrusion 111 is consistent with the opposite Z direction in Figure 2 . It should be noted that, to facilitate illustration of the internal structure, one sidewall of the female terminal is omitted in Figure 2 , and this does not constitute a limitation on the female terminal structure.

[0038] A protrusion 111 is provided on the surface of the first enclosure 110 on the side facing the second enclosure 120. When the male terminal is inserted into the female terminal along the Y direction, the protrusion 111 can abut against the male terminal, thereby enhancing the contact stability between the male and female terminals. Specifically, after the inserted portion of the male terminal enters the cavity 200 of the female terminal, as the male terminal moves along the insertion direction, the surface of the male terminal in the Z direction abuts against the protrusion 111. The protrusion 111 exerts a Z-opposite abutting force on the inserted portion of the male terminal. At the same time, the inserted portion of the male terminal also exerts a Z-direction abutting force on the protrusion 111. The protrusions 111 on the top of the male and female terminals interact with each other, making the connection between the male and female terminals more stable.

[0039] When the inner surface of the top of the female terminal is a planar structure, that is, when the protrusion 111 is not provided, the inserted portion of the male terminal enters the cavity 200 of the female terminal, and the male terminal moves along the insertion direction. The surface of the male terminal in the Z direction directly contacts the surface of the top of the female terminal in the opposite Z direction. At this time, the contact method between the male terminal and the female terminal is two-surface contact. In the embodiment of the present application, a protrusion 111 is provided on the top of the female terminal, and the contact method between the top of the female terminal and the inserted portion of the male terminal is that the protrusion 111 contacts the surface of the male terminal, that is, point contact. The contact area is smaller, and a larger contact stress can be formed locally at the contact point, thereby improving the stability of the contact between the male terminal and the female terminal.

[0040] In a possible embodiment, referring to Figures 2 to 5 , the surface of the protrusion 111 in the embodiment of the present application that faces the second enclosure 120 is the abutment surface 121, and the abutment surface 121 is a smooth surface. The abutment surface 121 being a smooth surface means that the abutment surface 121 is a surface with a continuous transition, for example, it can be a surface with an arc-shaped transition, and the abutment surface 121 does not have a sharp point. Of course, the abutment surface 121 can also be other smooth surfaces, such as a hemispherical surface or a hemispherical surface. Here, the abutment surface 121 being a smooth surface only limits the abutment surface 121 to having no sharp point, so as to avoid problems such as damaging the male terminal or causing poor contact during insertion.

[0041] When the male terminal is plugged into the female terminal, the inserted part of the male terminal enters the cavity 200 of the female terminal, and the male terminal moves along the insertion direction. The surface of the male terminal in the Z direction contacts the abutment surface 121 of the protrusion 111. The protrusion 111 exerts a force on the male terminal away from the first enclosure 110. The abutment surface 121 of the protrusion 111 on the top of the female terminal abuts against the male terminal. Under the action of the mutual force between the protrusion 111 and the male terminal, a stable contact point is formed between the abutment surface 121 and the male terminal, and a larger contact stress is generated in the local contact area, thereby enhancing the stability of the contact between the male terminal and the female terminal.

[0042] In one possible embodiment, referring to Figures 2 and 3 , there may be multiple protrusions 111 in the embodiment of the present application, for example, two protrusions 111 may be provided, or in some possible embodiments, three or more protrusions 111 may be provided. The embodiment of the present application is illustrated by taking two protrusions 111 as an example.

[0043] Referring to Figure 3, Figure 3 is a cross-sectional view of the female terminal provided in an embodiment of the present application. Two protrusions 111 can be provided on the surface of the top of the female terminal located in the cavity 200, that is, two protrusions 111 are provided on the surface of the first enclosure 110 located on the side opposite to the Z direction in Figure 3. The protrusions 111 protrude from the first enclosure 110 toward the cavity 200. When the inserted portion of the male terminal enters the cavity 200 of the female terminal, the surface of the male terminal located on the side in the Z direction will abut against the protrusions 111 close to the socket side. As the male terminal moves along the insertion direction, the surface of the male terminal located on the side in the Z direction will abut against the two protrusions 111. Both protrusions 111 have a Z-opposite abutting force toward the inserted portion of the male terminal. At the same time, the inserted portion of the male terminal also has a Z-direction abutting force on the two protrusions 111. The multiple protrusions 111 on the top of the male terminal and the female terminal interact with each other to form multiple contact points. A larger contact stress can be formed locally at each contact point, thereby improving the contact stability between the male terminal and the female terminal.

[0044] The two protrusions 111 provided on the first enclosure portion 110 can be connected or close to each other. The shape of a single protrusion 111 can be approximately V-shaped or U-shaped, and the two protrusions 111 can form a shape approximately similar to the letter W. Both protrusions 111 have abutting surfaces 121. When the male terminal is inserted into the female terminal, both abutting surfaces 121 can abut against the male terminal. Each abutting surface 121 can abut against the surface of the male terminal to form a stable contact point. The two protrusions 111 respectively contact the surface of the male terminal to improve the stability of the contact.

[0045] In one possible embodiment, the first enclosure 110 and the protrusion 111 in the embodiment of the present application are of an integrated structure. For example, the protrusion 111 can be manufactured by a stamping process. In Figures 1 and 2, the surface of the first enclosure 110 facing away from the cavity 200, that is, the surface of the first enclosure 110 on the side in the Z direction, has a pit. The pit can be generated by the stamping process of preparing the protrusion 111. The protrusion 111 is pre-stamped on the top wall of the female terminal to ensure that the protrusion 111 is located on the surface of the first enclosure 110 inside the cavity 200 after the terminal is manufactured. The integrated molding method can simplify the manufacturing process of the protrusion 111 and save costs.

[0046] In a possible embodiment, referring to FIG3 , the direction of the first enclosure 110 toward the second enclosure 120 in the embodiment of the present application is the first direction 610, that is, the direction from the top of the female terminal toward the bottom. In FIG3 , the first direction 610 is parallel to the Z-opposite direction. In the first direction 610, the height of the protrusion 111 provided on the top inner surface of the female terminal is greater than or equal to 0.05 mm. The size of the protrusion 111 is not specifically limited here, but only indicates that during use, the protrusion 111 can abut against the surface of the male terminal while ensuring that the male terminal and the female terminal are inserted and connected. The abutting surface 121 of the protrusion 111 can form a stable contact point with the surface of the male terminal, thereby improving the stability of the contact. Those skilled in the art can flexibly set the size of the protrusion 111 according to the needs of actual use.

[0047] In one possible embodiment, as shown in Figures 2 and 3 , a resilient contact arm 300 is disposed on the second enclosure 120 in the embodiment of the present application. The resilient contact arm 300 is positioned within the cavity 200. One end of the resilient contact arm 300 is fixedly connected to the second enclosure 120 to form a cantilever structure. The resilient contact arm 300 can be integral with the second enclosure 120. For example, in Figure 2 , the resilient contact arm 300 can be formed by bending the bottom of the female terminal toward the Z direction into the interior of the cavity 200.

[0048] The other end of the elastic contact arm 300 is designated as the first free end 310 of the elastic contact arm 300. When the male terminal is inserted into the female terminal, the male terminal contacts the elastic contact arm 300 and exerts a force in the reverse Z direction on the elastic contact arm 300. As the male terminal is inserted, the elastic contact arm 300 is squeezed by the male terminal, causing the first free end 310 of the elastic contact arm 300 to move downward, that is, toward the second enclosure 120. Because the elastic contact arm 300 is elastic, it tends to return to its original shape, exerting a force in the Z direction on the inserted portion of the male terminal. The inserted portion of the male terminal interacts with the elastic contact arm 300, exerting a mutual abutment force, thereby improving the stability of the contact between the male and female terminals.

[0049] In a possible implementation, referring to FIG. 2 and FIG. 3 , a first convex bump 311 is provided on the first free end 310 . The first convex bump 311 can contact the surface of the male terminal after the male terminal is inserted into the female terminal.

[0050] When the male terminal is inserted into the female terminal, it contacts the first bump 311 on the first free end 310 and exerts a force in the reverse Z direction on the first bump 311. This force is squeezed by the male terminal, causing it and the first free end 310 to move toward the second enclosure 120. Simultaneously, the first bump 311 exerts a force in the Z direction on the inserted portion of the male terminal. The male terminal's surface in the Z direction abuts the first bump 311, and the male and female terminal's top protrusions 111 interact, further stabilizing the connection.

[0051] A first convex bump 311 is provided on the first free end 310. The contact manner between the elastic contact arm 300 and the inserted portion of the male terminal is that the first convex bump 311 contacts the surface of the male terminal. Compared with the manner in which the elastic contact arm 300 directly contacts the male terminal, the contact area between the first convex bump 311 and the male terminal is smaller, and a larger contact stress can be locally generated at the contact point between the first convex bump 311 and the male terminal, thereby improving the contact stability between the male terminal and the female terminal.

[0052] In one possible embodiment, referring to FIG. 3 , the protrusion 111 includes a first protrusion 111a and a second protrusion 111b. The direction of the second enclosure 120 toward the first enclosure 110 is a second direction 620, which is parallel to the Z-axis in FIG. 3 . The projection of the first protrusion 311 along the second direction 620 is located between the first protrusion 111a and the second protrusion 111b, as shown by the dashed line in FIG. In other words, the first protrusion 311 on the elastic contact arm 300 is located below the position between the first protrusion 111a and the second protrusion 111b (the Z-axis direction in FIG. 3 is upward, and the direction opposite to the Z-axis is downward). The first protrusion 311 is located below the position between the first protrusion 111a and the second protrusion 111b. When the male terminal is inserted into the female terminal, the combined force of the first protrusion 311 and the first and second protrusions 111a, 111b can better abut the male terminal, thereby improving the contact stability between the male and female terminals.

[0053] In a possible embodiment, referring to Figures 2 and 3, a support arm 400 is provided on the second enclosure portion 120 in the embodiment of the present application, and one end of the support arm 400 is connected to the second enclosure portion 120 to form a cantilever structure, and the other end of the support arm 400 is recorded as the second free end 410 of the support arm 400, and the second free end 410 of the support arm 400 is abutted against the first free end 310 of the elastic contact arm 300, and the second free end 410 is located on the side of the first free end 310 away from the first enclosure portion 110.

[0054] The support arm 400 can be integrally formed with the second enclosure 120. For example, in Figures 2 and 3, the support arm 400 can be formed by bending the bottom of the female terminal, i.e., the second enclosure 120. This bending of the support arm 400 from the second enclosure 120 eliminates the need for additional mold design, thus reducing manufacturing costs.

[0055] In Figures 2 and 3 , the second free end 410 of the support arm 400 is located below the first free end 310 of the elastic contact arm 300. That is, the second free end 410 is located in the opposite Z direction to the first free end 310. When the male terminal is inserted into the female terminal along the Y direction, the insertion portion of the male terminal presses against the elastic contact arm 300. The elastic contact arm 300, under the force of the male terminal, moves downward. This downward movement of the elastic contact arm 300 presses against the support arm 400. While the support arm 400 is being squeezed by the elastic contact arm 300, it also provides support for the elastic contact arm 300. In other words, the support arm 400 exerts a supporting force on the elastic contact arm 300 in the Z direction. The elastic contact arm 300 is squeezed by the male terminal on the one hand, and supported by the support arm 400 on the other. Because the support arm 400 supports the elastic contact arm 300, the contact force between the elastic contact arm 300 and the male terminal is greater.

[0056] The support arm 400 provided on the second enclosure 120 can enhance the contact force between the elastic contact arm 300 and the male terminal, improving contact stability. Furthermore, the support arm 400 in this embodiment can be formed by bending the bottom of the female terminal, eliminating the need for separate mold design or additional assembly, simplifying the manufacturing process and reducing costs.

[0057] In a possible implementation, referring to FIG. 3 , a second convex bump 411 is provided on the second free end 410 of the support arm 400 , and the second convex bump 411 can abut against the first free end 310 of the elastic contact arm 300 .

[0058] When the male terminal is inserted into the female terminal, the male terminal contacts the first free end 310 of the elastic contact arm 300, exerting a force in the reverse Z direction on the first free end 310. Under the compressive force of the male terminal, the first free end 310 moves toward the support arm 400. The first free end 310 of the elastic contact arm 300 then contacts the second free end 410 of the support arm 400. Because the second free end 410 is provided with a second protrusion 411, the first free end 310 abuts against the second protrusion 411 on the second free end 410. This forces the first free end 310 against the second protrusion 411, while the second protrusion 411 also exerts a force in the Z direction on the first free end 310. The surface of the first free end 310 near the support arm 400 abuts against the second protrusion 411. The interaction between the elastic contact arm 300 and the second protrusion 411 on the support arm 400 increases the contact force between the elastic contact arm 300 and the male terminal, improving contact stability.

[0059] A second convex bump 411 is provided on the second free end 410. The contact method between the support arm 400 and the elastic contact arm 300 is that the second convex bump 411 is in contact with the surface of the contact arm 300 close to the support arm 400, that is, the second convex bump 411 will abut the lower surface of the elastic contact arm 300, forming a large contact stress locally at the contact point. At the same time, the support arm 400 can also elastically abut the force required for the contact arm 300 to abut the male terminal, thereby improving the contact stability between the male terminal and the female terminal.

[0060] In a possible embodiment, referring to Figures 1 to 5, the enclosing portion 100 in the embodiment of the present application further includes a third enclosing portion 130, part of the third enclosing portion 130 is located between the first enclosing portion 110 and the second enclosing portion 120, the third enclosing portion 130 has an extension portion 131, the direction of the second enclosing portion 120 toward the first enclosing portion 110 is the second direction 620, the extension portion 131 is bent and extends to one side of the first enclosing portion 110 along the second direction 620, and the extension portion 131 is in contact with the first enclosing portion 110.

[0061] The extension portion 131 and the third enclosure portion 130 can be an integral structure. Referring to Figures 1 and 2, the extension portion 131 can be formed by bending the side wall of the enclosure portion 100, and the side wall of the enclosure portion 100 is bent and abutted against the first enclosure portion 110. That is, in Figures 1 and 2, the side wall of the female terminal is bent and abuts against the top of the female terminal in the Z direction. When the male terminal is inserted, the surrounding walls of the female terminal may be subjected to a force, causing the surrounding walls of the female terminal to be pushed open. In the embodiment of the present application, the extension portion 131 can abut against the top of the enclosure portion 100, applying a force toward the cavity of the enclosure portion 100 to the top of the enclosure portion 100, thereby preventing the enclosure portion 100 of the female terminal from being pushed open by the male terminal when the male terminal is inserted, thereby enhancing the stability of the female terminal structure. At the same time, the extension portion 131 and the side wall of the enclosure portion 100 can be the same plate, directly formed by bending the side wall of the female terminal, and the preparation method is simple.

[0062] In one possible embodiment, referring to Figures 1 to 3 , the extension portion 131 includes a bent portion 1311, which protrudes from the first enclosing portion 110 toward the second direction 620, and abuts against the first enclosing portion 110. The bent portion 1311 can be formed by the extension portion 131 protruding a certain height in the Z direction in Figure 1 , and a gap can be provided between the bent portion 1311 and the first enclosing portion 110 so that the bent portion 1311 protrudes toward the Z direction in Figure 1 .

[0063] During use, the terminal block 10 can be inserted into the protective cover, and the bent portion 1311 can serve as a foolproof mechanism. Specifically, a groove matching the shape of the bent portion 1311 can be provided within the protective cover. When using the terminal block 10, the operator can align the bent portion 1311 with the groove on the protective cover in a single insertion direction. This foolproof mechanism, i.e., the bent portion 1311, can quickly ensure that the connection direction of the terminal block 10 is correct, thereby improving installation efficiency.

[0064] In one possible embodiment, as shown in FIG2 , there may be multiple extension portions 131 , with the multiple extension portions 131 spaced apart along a third direction 630 . The third direction 630 is the extension direction of the cavity 200 and, in FIG2 , is parallel to the Y-axis. In other words, the multiple extension portions 131 are spaced apart along a direction parallel to the Y-axis, and the extension portion 131 near the insertion opening 201 of the cavity 200 may be a bent portion 1311 . If the insertion method is incorrect, the bent portion 1311 may hinder the insertion of the terminal block 10 into the protective cover. The bent portion 1311 at the insertion opening 201 ensures that the terminal block 10 can only be inserted into the protective cover in the correct manner.

[0065] In a possible embodiment, referring to Figures 1 to 5, the female terminal in the embodiment of the present application also includes a wire clamp portion 500, which is fixedly connected to the enclosure portion 100, or the wire clamp portion 500 can also be an integrated structure with the enclosure portion 100, that is, the wire clamp portion 500 and the enclosure portion 100 can be integrally formed from the same piece of plate, which simplifies the preparation process and makes the connection more reliable.

[0066] The wire clamp portion 500 may include a first wire clamp portion 510 and a second wire clamp portion 520. One end of the first wire clamp portion 510 is connected to one end of the second wire clamp portion 520. Alternatively, one end of the first wire clamp portion 510 and one end of the second wire clamp portion 520 may be an integral structure, and the other end of the first wire clamp portion 510 and the other end of the second wire clamp portion 520 are close to each other, forming a U-shaped structure as shown in Figure 1. The connecting wire connected to the female terminal can be accommodated between the first wire clamp portion 510 and the second wire clamp portion 520. The first wire clamp portion 510 and the second wire clamp portion 520 are close to each other, and the connecting wire is compressed between the first wire clamp portion 510 and the second wire clamp portion 520, so that the connecting wire is connected to the female terminal.

[0067] In one possible embodiment, the wire clamp portion 500 in the embodiment of the present application may be provided with a groove 530. The groove 530 is located on the surface of the first wire clamp portion 510 on the side close to the second wire clamp portion 520, or the groove 530 is located on the surface of the second wire clamp portion 520 on the side close to the first wire clamp portion 510. The groove 530 may also be provided on both the first wire clamp portion 510 and the second wire clamp portion 520. The groove 530 accommodates the connecting wire connected to the female terminal to increase the holding force between the wire clamp portion 500 and the connecting wire. When the connecting wire is crimped between the first wire clamp portion 510 and the second wire clamp portion 520, part of the wire is squeezed into the groove 530, and the friction between the wire and the wire clamp portion 500 increases, thereby improving the holding force between the wire clamp portion 500 and the wire.

[0068] In one possible embodiment, as shown in FIG5 , the present application further provides a connector, comprising the wiring terminal 10 according to any of the above embodiments, and further comprising a mating terminal 20 that matches the wiring terminal 10, the mating terminal 20 being inserted into the cavity 200 of the wiring terminal 10. For example, the wiring terminal 10 may be a female terminal, and the mating terminal 20 may be a male terminal. When the male and female terminals are plugged together, the inserted portion of the male terminal can enter the female terminal, thereby forming a reliable electrical connection between the male and female terminals.

[0069] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A terminal block (10), characterized in that: It comprises an enclosure (100), the enclosure having a cavity (200), the cavity (200) being used for inserting a mating terminal; The enclosure (100) comprises a first enclosure (110) and a second enclosure (120) located on both sides of the cavity (200); a protrusion (111) is provided on one side of the first enclosure (110) facing the second enclosure (120), and the protrusion (111) protrudes from the first enclosure (110) toward the cavity.

2. The connecting terminal (10) according to claim 1, characterized in that: The surface of the protrusion (111) facing the second enclosing portion (120) is a contact surface (121), and the contact surface (121) is used to contact the matching terminal, and the contact surface (121) is a smooth surface.

3. The connecting terminal (10) according to claim 1 or 2, characterized in that: There are multiple protrusions (111).

4. The connecting terminal (10) according to claim 1 or 2, characterized in that: The direction from the first enclosing portion (110) toward the second enclosing portion (120) is a first direction, and in the first direction, the height of the protrusion (111) is greater than or equal to 0.05 mm.

5. The connecting terminal (10) according to claim 1 or 2, characterized in that: The first enclosing portion (110) and the protrusion (111) are in an integrated structure.

6. The connecting terminal (10) according to claim 1 or 2, characterized in that: An elastic contact arm (300) is provided on the second enclosure (120), and the elastic contact arm (300) is located in the cavity (200); one end of the elastic contact arm (300) is connected to the second enclosure (120) to form a cantilever structure, and the other end of the elastic contact arm (300) is provided with a first convex bump (311).

7. The connecting terminal (10) according to claim 6, characterized in that: The protrusion (111) comprises a first protrusion (111a) and a second protrusion (111b); the direction of the second enclosing portion (120) toward the first enclosing portion (110) is a second direction, and the projection of the first convex bulge (311) along the second direction is located between the first protrusion (111a) and the second protrusion (111b).

8. The connecting terminal (10) according to claim 6, characterized in that: A support arm (400) is provided on the second enclosure portion (120), one end of the support arm (400) is connected to the second enclosure portion (120) to form a cantilever structure, the elastic contact arm (300) has a first free end (310), the support arm (400) has a second free end (410), the second free end (410) is abutted against the first free end (310), and the second free end (410) is located on a side of the first free end (310) away from the first enclosure portion (110).

9. The connecting terminal (10) according to claim 8, characterized in that: A second convex bump (411) is provided on the second free end (410) of the support arm (400), and the second convex bump (411) abuts against the first free end (310) of the elastic contact arm (300).

10. The connecting terminal (10) according to claim 1 or 2, characterized in that: The enclosure (100) further comprises a third enclosure (130), part of which is located between the first enclosure (110) and the second enclosure (120), the third enclosure (130) comprising an extension portion (131), the direction of the second enclosure (120) toward the first enclosure (110) being a second direction, the extension portion (131) being bent and extending to one side of the first enclosure (110) along the second direction, the extension portion (131) being in contact with the first enclosure (110).

11. The connecting terminal (10) according to claim 10, characterized in that: The extending portion (131) comprises a bending portion (1311), wherein the bending portion (1311) protrudes on the first enclosing portion (110) toward one side of the second direction, and the bending portion (1311) abuts against the first enclosing portion (110).

12. The connecting terminal (10) according to claim 11, characterized in that: There are a plurality of extension portions (131), and the plurality of extension portions (131) are arranged at intervals along a third direction, the third direction being the extension direction of the cavity and the third direction being perpendicular to the second direction, and the extension portion (131) on the side of the insertion port (201) of the cavity (200) among the plurality of extension portions (131) includes the bending portion (1311).

13. The connecting terminal (10) according to claim 1 or 2, characterized in that: The connecting terminal (10) further comprises a wire clamp portion (500), wherein the wire clamp portion (500) is connected to the enclosure portion, and the wire clamp portion (500) comprises a first wire clamp portion (510) and a second wire clamp portion (520), wherein one end of the first wire clamp portion (510) is connected to one end of the second wire clamp portion (520), and the other end of the first wire clamp portion (510) and the other end of the second wire clamp portion (520) are close to each other to form a groove structure.

14. The connecting terminal (10) according to claim 13, characterized in that: The wire clamp portion (500) is provided with a groove (530); the groove (530) is located on the surface of the first wire clamp portion (510) on a side close to the second wire clamp portion (520), and / or the groove (530) is located on the surface of the second wire clamp portion (520) on a side close to the first wire clamp portion (510).

15. A connector, characterized in that: The connector comprises the connection terminal (10) according to any one of claims 1 to 14, and further comprises a mating terminal (20) matching the connection terminal (10), wherein the mating terminal (20) is inserted into a cavity (200) of the connection terminal (10).

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