A chip-type double-layer terminal assembly

Abstract

The utility model discloses a sheet-type double-layer terminal assembly, including a terminal body, on which a support clip is connected; the terminal body includes a first-layer terminal and a second-layer terminal connected in one piece, a socket is provided between the first-layer terminal and the second-layer terminal, and a convex rib directly in contact with a plug-in is provided in the socket; the support clip includes a clip body connected to the terminal body, and a support cantilever for improving the contact force between the convex rib and the plug-in is integrally connected to the clip body. The support cantilever on the support clip provides support force for the plug-in inserted into the terminal body, ensuring the contact force between the terminal body and the plug-in, and the convex rib directly conducts the terminal body and the plug-in, avoiding the situation where the connection resistance increases due to the use of spring sheet switching, achieving the purpose of reliable connection between the terminal body and the plug-in and the connection resistance does not increase, and solving the technical problem of large connection resistance under the condition of ensuring the contact force between the terminal body and the plug-in.

Description

Technical Field

[0001] The utility model relates to the technical field of connector terminals, in particular to a sheet-type double-layer terminal component. Background Art

[0002] In modern industrial electrical systems, the application scope of connectors continues to expand, and the number of connectors used is increasing. At the same time, the demand for the current carrying capacity of the connector terminal assembly is also increasing. In order to reduce the connection resistance, the terminal body is directly connected to the plug-in. However, when directly connected in this way, the contact force between the terminal body and the plug-in is not high, and the connection is unreliable.

[0003] In order to solve the problem of low contact force and unreliable connection between the terminal body and the plug-in, a structure for improving the contact force is provided on the terminal body to increase the reliability of the connection between the terminal body and the plug-in.

[0004] For example, a Chinese patent with authorization publication number CN219626936U discloses a terminal assembly and a connector, wherein the terminal body of the terminal assembly is used to plug in a plug-in, a reed is arranged between the terminal body and the plug-in, the reed has a plurality of terminal body contacts and a plurality of plug-in contacts, the terminal body contacts are electrically connected to the terminal body, the plug-in contacts are electrically connected to the plug-in, and the plurality of terminal body contacts and the plurality of plug-in contacts can form a plurality of current transmission paths between the terminal body and the plug-in.

[0005] The terminal body in the above-mentioned public document is used for plugging in the plug-in, and the reed is arranged between the terminal body and the plug-in. The reed has multiple terminal body contacts and multiple plug-in contacts. The terminal body contacts are electrically connected to the terminal body, and the plug-in contacts are electrically connected to the plug-in. The multiple terminal body contacts and the multiple plug-in contacts can form multiple current transmission paths between the terminal body and the plug-in. The terminal body is electrically connected to the plug-in through the reed to complete the current transmission.

[0006] However, this type of electrical connection between the terminal body and the plug-in through the spring is a transfer electrical connection method, not a direct connection between the terminal body and the plug-in. The connection resistance is larger, resulting in reduced current carrying capacity and higher temperature rise. How to reduce the connection resistance while ensuring the contact force between the terminal body and the plug-in, so as to increase the current carrying capacity and reduce the temperature rise is a technical problem to be solved. Utility Model Content

[0007] In view of the deficiencies in the above-mentioned background technology, the utility model proposes a sheet-type double-layer terminal assembly, which solves the technical problem of large connection resistance while ensuring the contact force between the terminal body and the plug-in.

[0008] The technical solution of the utility model is implemented as follows: a sheet-type double-layer terminal assembly includes a terminal body, and a support clip is connected to the terminal body; the terminal body includes a first-layer terminal and a second-layer terminal that are integrally connected, a socket is provided between the first-layer terminal and the second-layer terminal, and a convex rib that directly contacts the plug-in is provided in the socket; the support clip includes a clip body connected to the terminal body, and a support cantilever for increasing the contact force between the convex rib and the plug-in is integrally connected to the clip body.

[0009] Preferably, the convex rib is integrally connected to the first layer terminal or the second layer terminal; the convex rib is located at the head end of the terminal body.

[0010] Preferably, at least two ribs are provided in the terminal body.

[0011] Preferably, a welding plane is provided at the tail end of the terminal body, and the welding plane is formed by bending the first layer terminal or the second layer terminal.

[0012] Preferably, the convex rib is located on the first layer of terminals, and the supporting cantilever is connected to the second layer of terminals.

[0013] Preferably, one end of the support cantilever is fixedly connected to the clip body, and the other end is suspended and extended, and the extended end is located in the terminal body. The support cantilever is provided with a protrusion along the extending direction, and the protrusion protrudes toward the rib.

[0014] Preferably, at least two protrusions are provided on the supporting cantilever.

[0015] Preferably, the supporting cantilever is located inside the clip body, and the end of the supporting cantilever away from the suspension is bent and integrally connected with the side wall of the clip body to form a U-shaped groove for inserting the second-layer terminal. The bending area of ​​the supporting cantilever is the bottom of the U-shaped groove, and the second-layer terminal is provided with a first limiting groove, and the bottom of the U-shaped groove is adapted to the first limiting groove.

[0016] Preferably, the clip body is a U-shaped opening structure, a second limiting groove is provided on the terminal body, the opening end of the clip body is integrally connected with a bending structure and is connected to the terminal body through the bending structure, and one end of the clip body away from the bending structure is adapted to the second limiting groove.

[0017] Preferably, the clip body is provided with elastic wings, and bending ribs are provided on both sides of the elastic wings.

[0018] The utility model provides a support clip on the terminal body, and provides a support force to the plug-in inserted into the terminal body through the support cantilever on the support clip, thereby ensuring the contact force between the terminal body and the plug-in. By providing a convex rib directly in contact with the plug-in on the terminal body, the terminal body and the plug-in are directly connected by the convex rib, thereby avoiding the conduction through spring switching and the situation where the connection resistance increases due to the spring switching, thereby achieving the purpose of reliable connection between the terminal body and the plug-in while the connection resistance does not increase, thereby avoiding the situation where the current carrying capacity is reduced and the temperature rise is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is an exploded view of the utility model.

[0021] Figure 2 It is a three-dimensional diagram of the utility model.

[0022] Figure 3 It is a side view of the utility model.

[0023] Figure 4 It is a cross-sectional view of the utility model.

[0024] In the figure, 1 is the terminal body, 2 is the first layer terminal, 3 is the second layer terminal, 4 is the convex rib, 5 is the welding plane, 6 is the supporting clip, 7 is the clip body, 8 is the bending structure, 9 is the supporting cantilever, 11 is the protrusion, 12 is the elastic wing, 13 is the bending rib, 14 is the first limiting groove, and 15 is the second limiting groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Embodiment 1, a sheet-type double-layer terminal assembly, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, Figure 2 yes Figure 1The schematic diagram after being assembled and then turned 180° includes a terminal body 1, and a support clip 6 is connected to the terminal body 1; the terminal body 1 includes a first-layer terminal 2 and a second-layer terminal 3 connected in one piece, and a socket is provided between the first-layer terminal 2 and the second-layer terminal 3, and a convex rib 4 directly in contact with the plug-in is provided in the socket; the support clip 6 includes a clip body 7 connected to the terminal body 1, and a support cantilever 9 for improving the contact force between the convex rib 4 and the plug-in is integrally connected to the clip body 7. The support clip 6 is provided on the terminal body 2, and the support cantilever 9 on the support clip 6 provides a support force for the plug-in inserted into the terminal body 2, thereby ensuring the contact force between the terminal body 2 and the plug-in. By providing the convex rib 4 directly in contact with the plug-in on the terminal body 2, the convex rib 4 is used to directly connect the terminal body 2 and the plug-in, thereby avoiding the connection through the spring sheet switching, and also avoiding the situation that the connection resistance increases due to the spring sheet switching, thereby achieving the purpose of reliable connection between the terminal body and the plug-in while the connection resistance does not increase, thereby avoiding the situation of reduced current carrying capacity and higher temperature rise. The technical problem of large connection resistance while ensuring the contact force between the terminal body and the plug-in is solved. In this embodiment, the convex rib 4 is integrally connected to the first layer terminal 2 or the second layer terminal 3, or the convex rib 4 can be integrally connected to both the first layer terminal 2 and the second layer terminal 3.

[0027] The terminal body 1 is bent to form two layers, namely the first layer terminal 2 and the second layer terminal 3. The convex rib 4 is located at the head end of the terminal body 1 after bending. The tail end of the terminal body 1 after bending is used to connect the wire. The tail end of the terminal body 1 after bending forms a welding plane 5, and the welding plane 5 is ultrasonically welded to the wiring harness. The support clip 6 is a stainless steel clip, and the support clip 6 is wrapped around the outside of the terminal body 1.

[0028] In addition, in the public documents, the terminal body is electrically connected to the plug-in through a reed. In the reed transfer structure, on the one hand, the connection resistance increases and the current carrying capacity decreases. On the other hand, ultrasonic welding affects the reliability of the reed. In a vibration environment such as a motor, the contact force loss of the reed is large, and the reed is difficult to meet the use requirements of a high vibration and low temperature rise environment. The present application uses a convex rib 4 to directly connect the terminal body 2 with the plug-in, reduce the impact of ultrasonic welding on the terminal assembly, reduce the contact resistance, and improve the vibration resistance of the terminal assembly.

[0029] Embodiment 2, based on embodiment 1, a sheet-type double-layer terminal assembly, such as Figure 1 and Figure 4As shown, the convex rib 4 is integrally connected to the first layer terminal 2 or the second layer terminal 3; the convex rib 4 is located at the head end of the terminal body 1. That is, the convex rib 4 is only provided on the first layer terminal 2 or the convex rib 4 is only provided on the second layer terminal 3. When the convex rib 4 is only provided on the first layer terminal 2, the support cantilever 9 can be located on the first layer terminal 2 or on the second layer terminal 3. When the convex rib 4 is only provided on the second layer terminal 3, the support cantilever 9 can be located on the first layer terminal 2 or on the second layer terminal 3.

[0030] Embodiment 3, based on embodiment 2, a sheet-type double-layer terminal assembly, such as Figure 1 , Figure 3 and Figure 4 As shown, at least two convex ribs 4 are provided in the terminal body 1. The number of convex ribs 4 determines the contact area between the terminal body 1 and the plug-in. The more convex ribs 4 there are, the larger the contact area between the terminal body 1 and the plug-in is, and the corresponding connection resistance between the terminal body 1 and the plug-in is smaller. However, the number of convex ribs 4 also affects the resistance when the plug-in is inserted. The more convex ribs 4 there are, the greater the resistance when the plug-in is inserted. Therefore, the number of convex ribs 4 is specifically selected according to needs. Preferably, two convex ribs 4 are provided in the terminal body 1, and the two convex ribs 4 are symmetrically arranged in the terminal body 1, so that the force is more uniform when the plug-in is inserted.

[0031] Preferably, the clip body 7 is integrally connected with at least two supporting cantilevers 9, the number of the supporting cantilevers 9 corresponds to the number of the convex ribs 4, and one supporting cantilever 9 corresponds to one convex rib 4. The supporting cantilever 9 and the convex rib 4 can be located on the same side wall of the terminal body 1, for example, the supporting cantilever 9 and the convex rib 4 can be located on the first layer of the terminal 2 at the same time, or the supporting cantilever 9 and the convex rib 4 can be located on the second layer of the terminal 3 at the same time; the supporting cantilever 9 and the convex rib 4 can also be located on different side walls of the terminal body 1, for example, the supporting cantilever 9 is located on the first layer of the terminal 2, the convex rib 4 is located on the second layer of the terminal 3, or the supporting cantilever 9 is located on the second layer of the terminal 3, and the convex rib 4 is located on the first layer of the terminal 2.

[0032] Embodiment 4, based on embodiment 3, a sheet-type double-layer terminal assembly, such as Figure 4 As shown, the tail end of the terminal body 1 is provided with a welding plane 5. The welding plane 5 is formed by bending the first layer terminal 2 or the second layer terminal 3. That is, the tail of the first layer terminal 2 is bent toward the second layer terminal 3, the bottom surface of the tail of the first layer terminal 2 is riveted to the second layer terminal 3 to form a whole, and the top surface of the tail of the first layer terminal 2 is the welding plane 5, or the tail of the second layer terminal 3 is bent toward the first layer terminal 2, the top surface of the tail of the first layer terminal 2 and the second layer terminal 3 are riveted to form a whole, and the bottom surface of the tail of the second layer terminal 3 is the welding plane 5. The setting of the welding plane 5 facilitates ultrasonic welding with the wiring harness.

[0033] Embodiment 5, based on embodiment 4, a sheet-type double-layer terminal assembly, such as Figure 4 As shown, the convex rib 4 is located on the first layer terminal 2, and the supporting cantilever 9 is connected to the second layer terminal 3. That is, the supporting cantilever 9 and the convex rib 4 are located on different side walls of the terminal body 1, the supporting cantilever 9 is located on the second layer terminal 3, and the convex rib 4 is located on the first layer terminal 2. When the plug-in is inserted along the head end of the terminal body 1, one side of the plug-in contacts and conducts with the convex rib 4, and the other side contacts with the supporting cantilever 9, and the supporting cantilever 9 presses the plug-in and the convex rib 4 in a direction perpendicular to the insertion direction of the plug-in.

[0034] Embodiment 6, based on embodiment 5, a sheet-type double-layer terminal assembly, such as Figure 4 As shown, one end of the support cantilever 9 is fixedly connected to the clip body 7, and the other end is suspended and extended, and the extended end is located in the terminal body 1. The support cantilever 9 is provided with a protrusion 11 along the extension direction, and the protrusion 11 protrudes toward the rib 4. The setting of the protrusion 11 improves the supporting force of the support cantilever 9 on the plug-in, which is conducive to improving the stability of the plug-in contacting the rib after insertion.

[0035] Embodiment 7, based on embodiment 6, a sheet-type double-layer terminal assembly, such as Figure 4 As shown, at least two protrusions 11 are provided on the support cantilever 9. The number of protrusions 11 depends on the length of the support cantilever 9. The protrusions 11 are evenly and evenly spaced along the length direction of the support cantilever 9, so that the support cantilever 9 applies uniform pressure to the plug-in, which is conducive to improving the stability of the contact between the plug-in and the rib.

[0036] Embodiment 8, based on embodiment 7, a sheet-type double-layer terminal assembly, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the support cantilever 9 is located inside the clip body 7. The end of the support cantilever 9 away from the suspension is bent and connected to the side wall of the clip body 7 to form a U-shaped groove for the second-layer terminal 3 to be inserted. The bending area of ​​the support cantilever 9 is the bottom of the U-shaped groove. The second-layer terminal 3 is provided with a first limiting groove 14, and the bottom of the U-shaped groove is matched with the first limiting groove 14. The first limiting groove 14 is provided to limit the support cantilever 9 to avoid the support cantilever 9 from moving horizontally on the terminal body 1. At the same time, the bottom of the U-shaped groove is matched with the first limiting groove 14. When the plug-in is inserted along the head end of the terminal body 1, the bottom of the U-shaped groove, that is, the bending area of ​​the support cantilever 9, cooperates with the head end of the terminal body 1 to prevent the support cantilever 9 from moving along the insertion direction of the plug-in.

[0037] Embodiment 9, based on embodiment 1 or 8, a sheet-type double-layer terminal assembly, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the clip body 7 is a U-shaped opening structure, a second limiting groove 15 is provided on the terminal body 1, the opening end of the clip body 7 is integrally connected with a bending structure 8 and connected to the terminal body 1 through the bending structure 8, and one end of the clip body 7 away from the bending structure 8 is adapted to the second limiting groove 15. That is, the clip body 7 is adapted to the second limiting groove 15, and when the plug-in is inserted along the head end of the terminal body 1, the clip body 7 is blocked and matched with the side wall of the second limiting groove 15, thereby avoiding the clip body 7 from moving along the insertion direction of the plug-in. The bending structure 8 is provided to further fix the clip body 7 on the terminal body 1.

[0038] Embodiment 10, based on embodiment 9, a sheet-type double-layer terminal assembly, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the clip body 7 is provided with an elastic wing 12, and bending ribs 13 are provided on both sides of the elastic wing 12. The bending ribs 13 are provided to protect the elastic wing 12 and prevent the elastic wing 12 from being overly compressed by the outside. The elastic wing 12 is provided to be hung and fixed with the connector housing after the terminal assembly is inserted into the connector housing. The specific hanging structure is to set a stop block in the connector housing. When the terminal assembly is inserted into the connector housing, the elastic wing 12 is first pressed to make the elastic wings 12 on both sides of the clip body 7 shrink inward, and then inserted into the connector housing. After being fully inserted, the elastic wing 12 partially passes through the stop block. At this time, the elastic wing 12 recovers its deformation, and the elastic wing 12 cooperates with the stop block to prevent the terminal assembly from easily falling out of the connector shell.

[0039] When implementing Example 10, a convex rib 4 is punched out of the terminal body 1, and then the terminal body 1 is bent to form an upper and lower layer, namely a first layer terminal 2 and a second layer terminal 3, wherein the convex rib 4 is located on the second layer terminal 3, and then the tail of the first layer terminal 2 is bent toward the second layer terminal 3, and the bottom surface of the tail of the first layer terminal 2 is riveted to the second layer terminal 3 to form a whole, and the top surface of the tail of the first layer terminal 2 is the welding plane 5, and then the support clip 6 is sleeved on the terminal body 1, wherein the support cantilever 9 is located on the first layer terminal 2, and then the bending structure 8 is bent to fix the support clip 6 on the terminal body 1, and then the wiring harness is welded on the welding plane 5 at the tail end of the terminal body 1, and when the plug-in is inserted along the head end of the terminal body 1, one side of the plug-in contacts and conducts with the convex rib 4, and the other side contacts with the support cantilever 9, and the support cantilever 9 presses the plug-in and the convex rib 4 in a direction perpendicular to the insertion direction of the plug-in.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sheet-type double-layer terminal assembly, characterized in that: The invention comprises a terminal body (1), to which a support clip (6) is connected; the terminal body (1) comprises a first-layer terminal (2) and a second-layer terminal (3) which are integrally connected, a socket is provided between the first-layer terminal (2) and the second-layer terminal (3), and a convex rib (4) which is in direct contact with a plug-in is provided in the socket; the support clip (6) comprises a clip body (7) connected to the terminal body (1), and a support cantilever (9) for increasing the contact force between the convex rib (4) and the plug-in is integrally connected to the clip body (7).

2. The sheet-type double-layer terminal assembly according to claim 1, characterized in that: The convex rib (4) is integrally connected to the first layer terminal (2) or the second layer terminal (3); the convex rib (4) is located at the head end of the terminal body (1).

3. The sheet-type double-layer terminal assembly according to claim 2, characterized in that: At least two convex ribs (4) are provided in the terminal body (1).

4. The sheet-type double-layer terminal assembly according to claim 3, characterized in that: A welding plane (5) is provided at the tail end of the terminal body (1).

5. The sheet-type double-layer terminal assembly according to claim 4, characterized in that: The convex rib (4) is located on the first layer of terminals (2), and the supporting cantilever (9) is connected to the second layer of terminals (3).

6. The sheet-type double-layer terminal assembly according to claim 5, characterized in that: One end of the support cantilever (9) is fixedly connected to the clip body (7), and the other end is suspended and extended, with the extended end located inside the terminal body (1). The support cantilever (9) is provided with a protrusion (11) along the extension direction, and the protrusion (11) protrudes toward the rib (4).

7. The sheet-type double-layer terminal assembly according to claim 6, characterized in that: At least two protrusions (11) are provided on the supporting cantilever (9).

8. The sheet-type double-layer terminal assembly according to claim 7, characterized in that: The support cantilever (9) is located inside the clamp body (7); one end of the support cantilever (9) away from the suspension is bent and integrally connected to the side wall of the clamp body (7) to form a U-shaped groove for the second layer terminal (3) to be inserted; the bent area of ​​the support cantilever (9) is the bottom of the U-shaped groove; the second layer terminal (3) is provided with a first limiting groove (14); the bottom of the U-shaped groove is adapted to fit the first limiting groove (14).

9. The sheet-type double-layer terminal assembly according to claim 1 or 8, characterized in that: The clamp body (7) is a U-shaped opening structure, a second limiting groove (15) is provided on the terminal body (1), the opening end of the clamp body (7) is integrally connected with a bending structure (8) and is connected to the terminal body (1) via the bending structure (8), and an end of the clamp body (7) away from the bending structure (8) is adapted to the second limiting groove (15).

10. The sheet-type double-layer terminal assembly according to claim 9, characterized in that: The clip body (7) is provided with an elastic wing (12), and bending ribs (13) are provided on both sides of the elastic wing (12).

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