A high current low cost contact

Abstract

The utility model discloses a kind of high current low cost contact, it is related to the technical field of contact, including jack base body and reed, the reed is connected in jack base body;The reed includes reed body, and the reed body is equipped with elastic sheet, and the elastic sheet is equipped with the convex point for and the contact of plug pin adaptation conduction current, the convex rib for supporting convex point is equipped in jack base body.This application sets up convex rib in jack base body, and convex rib supports convex point, so that convex point is separated from suspended state, along with the insertion of plug pin, and reed elastic tongue piece is supported by convex rib, so as to avoid the situation that reed elastic tongue piece is excessively deformed, and the contact normal force of reed to plug pin is effectively maintained, and the connection of contact and plug pin is more stable, solve the technical problem that the convex point of reed on the contact of existing contact and plug pin is in suspended state, and reed elastic tongue piece is easily excessively deformed along with the insertion of plug pin.

Description

Technical Field

[0001] This utility model relates to the technical field of contact components, and in particular to a high-current, low-cost contact component. Background Technology

[0002] Contacts are key components of connectors. With the rapid development of new energy electric vehicles and the energy storage industry, the demand for connector current-carrying capacity is increasing. Traditional contactors have many parts, complex processing technology, low production efficiency, high production costs, and lack competitiveness, hindering their widespread adoption. Most existing contactors are assembled, requiring an external steel sleeve to provide positive force to the terminals. These assembled contactors have many components, few spring contacts, high contact resistance, and weak current-carrying capacity.

[0003] To address the aforementioned issues, stamped contacts are typically designed to avoid the need for steel sleeves to provide positive force to the terminals. For example, Chinese patent application CN113922126A discloses a rectangular stamped socket assembly, including springs and a socket base. The springs are symmetrically arranged within the socket base and fixedly connected to it via riveting and laser welding. The springs have two sets of symmetrically distributed elastic tongues for contacting and conducting current with the compatible inserts. The elastic tongues are arranged parallel to the springs, each with an independent support point. The symmetrical arrangement of the springs, numerous contacts, and reliable connection between the springs and the base via riveting and laser welding provide strong current carrying capacity and vibration resistance. Section 0030 of the instruction manual states that "the reed is provided with two sets of symmetrically and evenly distributed elastic tongues. The elastic tongues are arranged parallel to the reed, and the two sets are staggered and the number is unlimited. Each elastic tongue has an independent support point. One end of the elastic tongue is connected to the reed, and the other end extends into a cantilever state. The peak of the cantilever is provided with a protrusion to increase the contact points between the reed and the mating insert."

[0004] However, in actual use, it was found that because the protrusion of the elastic tongue on the spring is in a suspended state, the elastic tongue is prone to excessive deformation as the pin is inserted. Once the elastic tongue is excessively deformed, the contact force between the spring and the pin will decrease, affecting the stable connection between the contact and the pin. Utility Model Content

[0005] To address the shortcomings in the aforementioned background technology, this utility model proposes a high-current, low-cost contact component, which solves the technical problem that the protrusions on the spring sheet of existing contact components that contact the pin are in a suspended state, and the elastic tongue on the spring sheet is prone to excessive deformation as the pin is inserted.

[0006] The technical solution of this utility model is achieved as follows: A high-current, low-cost contact component includes a socket base and a spring, the spring being connected to the socket base. The spring includes a spring body with an elastic sheet on it. The elastic sheet has a protrusion for adapting to contact and conducting current with a pin. The socket base has a rib for supporting the protrusion. This application provides a rib in the socket base to support the protrusion, thus preventing it from being suspended. As the pin is inserted, the elastic tongue on the spring is supported by the rib, avoiding excessive deformation of the elastic tongue. The positive contact force of the spring on the pin is effectively maintained, making the connection between the contact component and the pin more stable. This solves the technical problem in existing contact components where the protrusion on the spring that contacts the pin is suspended, and the elastic tongue on the spring is prone to excessive deformation as the pin is inserted.

[0007] Preferably, the two springs are symmetrically arranged within the socket base, and the two ribs are also symmetrically arranged within the socket base. That is, two springs are symmetrically arranged within the socket base. When the pin is inserted, the two symmetrically arranged springs respectively contact and conduct with the pin. The arrangement of two springs increases the number of springs in contact with the pin, thus enhancing the current-carrying capacity of the contact element.

[0008] Preferably, at least two elastic sheets are provided on the reed body. Providing at least two elastic sheets on the reed body means that when the pin is inserted, at least two elastic sheets on the reed body are in contact with the pin, thus increasing the number of elastic sheets in contact with the pin and enhancing the current-carrying capacity of the contact element.

[0009] Preferably, the protrusions on two adjacent elastic sheets are staggered. That is, the protrusions are staggered in the insertion direction of the pin, which allows two adjacent protrusions to contact the pin sequentially, resulting in a gentler insertion and extraction force.

[0010] Preferably, the protrusions on the spring are located on an arc, and the corresponding ribs are arc-shaped. That is, the ribs are set as arc-shaped ribs, and the corresponding protrusions are located on an arc. The arc-shaped ribs provide support for the protrusions on the arc, ensuring that a single rib can stably support multiple protrusions on the spring simultaneously, while also ensuring that the protrusions on the spring are not in a straight line, thus making the insertion and extraction force of the pin more gentle.

[0011] Preferably, both ends of the elastic sheet are integrally connected to the spring body. At least two protrusions are provided on the elastic sheet along the insertion direction of the pin, and at least two ribs are provided on the socket base along the insertion direction of the pin. The integral connection of both ends of the elastic sheet to the spring body means that both ends of the elastic sheet are connected to the spring body, making the spring composed of the elastic sheet and the two spring bodies more stable and facilitating its connection to the socket base. Providing at least two protrusions on the elastic sheet along the insertion direction of the pin increases the number of protrusions contacting the pin in the insertion direction, further enhancing the current-carrying capacity of the contact element. The provision of at least two ribs on the socket base ensures that at least two protrusions on the elastic sheet along the insertion direction of the pin can be supported by the ribs.

[0012] Preferably, the socket base is provided with a front stop block and a rear stop block, which are arranged sequentially along the insertion direction of the pin. The front stop block and the rear stop block are respectively located at the front end and the rear end of the spring. The front stop block and the rear stop block are provided to guide the pin during insertion and to center the pin after insertion, preventing the pin from deviating within the socket base and ensuring sufficient contact between the pin and the spring.

[0013] Preferably, one end of the spring is provided with a connecting hole, and the corresponding insertion hole base is provided with a fixing hole. One end of the spring is fixed to the insertion hole base by a rivet passing through the connecting hole and the fixing hole in sequence. The other end of the spring is connected to the insertion hole base by rivetless riveting technology or laser welding. That is, one end of the spring is connected to the insertion hole base by rivetless riveting technology or laser welding, and the other end of the spring is fixed to the insertion hole base by a rivet passing through the connecting hole and the fixing hole in sequence. The use of rivetless riveting technology to connect the spring to the insertion hole base results in low connection resistance between the spring and the insertion hole base, low connection cost, and a more robust and reliable connection. Rivetless riveting technology applies instantaneous high pressure using a riveting machine and a special mold, causing cold extrusion deformation of multi-layer sheet materials to form internal inlaid dots, achieving rivetless mechanical interlocking and fastening without the need for traditional rivets.

[0014] Preferably, the socket base includes a cable connector for connecting wires and a socket head for inserting pins, wherein the cable connector and the socket head are integrally connected. This integral connection reduces the connection resistance between the cable connector and the socket head, which helps improve the conductivity of the socket base.

[0015] Preferably, the head of the socket has a dovetail groove on one side and a dovetail on the other side. When the head of the socket is bent, the dovetail and the dovetail groove interlock to form a rectangular cavity for the insertion of a pin. The cable connector, after bending, forms upper and lower layers, which are connected by rivetless riveting technology. The dovetail groove and dovetail are designed to ensure that the socket head can interlock after bending, guaranteeing the stability of the formed rectangular cavity. The upper and lower layers of the cable connector are connected by rivetless riveting technology, making the upper and lower layers a stable and solid whole.

[0016] The beneficial effects of this utility model are as follows: 1. This application provides a raised rib in the socket base, which supports the raised point, so that the raised point is not suspended. As the pin is inserted, the elastic tongue on the spring is supported by the raised rib, which avoids excessive deformation of the elastic tongue on the spring. The positive contact force of the spring on the pin is effectively maintained, and the connection between the contact and the pin is more stable.

[0017] 2. In this application, at least two of the protrusions are provided on the elastic sheet along the insertion direction of the pin. This arrangement increases the number of protrusions that contact the pin in the insertion direction, thereby further enhancing the current carrying capacity of the contact. Attached Figure Description

[0018] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a perspective view of the present invention.

[0020] Figure 2 This is a three-dimensional view of the socket base of this utility model.

[0021] Figure 3 This is a three-dimensional view of the reed of this utility model.

[0022] Figure 4 for Figure 1 A cross-sectional view.

[0023] Figure 5 for Figure 1 A longitudinal sectional view.

[0024] Figure 6 This is a schematic diagram showing the interaction between the present invention and the insert.

[0025] In the figure, 1 is a rectangular cavity, 2 is a socket base, 3 is a cable connector, 4 is a socket head, 5 is a front stop block, 6 is a dovetail groove, 7 is a dovetail, 8 is a fixing hole, 9 is a raised rib, 10 is a spring, 11 is an elastic sheet, 12 is a protrusion, 13 is a connecting hole, 14 is a pin, 15 is a spring body, and 16 is a rear stop block. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1: A high-current, low-cost contact component, such as... Figure 1 , Figure 2 and Figure 3 As shown, the device includes a socket base 2 and a spring 10, with the spring 10 connected within the socket base 2. The spring 10 includes a spring body 15, on which an elastic sheet 11 is provided. The elastic sheet 11 has a protrusion 12 for adapting to contact and conduct current with a pin 14. The socket base 2 has a rib 9 for supporting the protrusion 12. This application provides a rib 9 within the socket base 2 to support the protrusion 12, thus preventing the protrusion 12 from being suspended. As the pin is inserted, the elastic tongue on the spring is supported by the rib 9, avoiding excessive deformation of the elastic tongue. The positive contact force of the spring on the pin is effectively maintained, making the connection between the contact and the pin more stable. This solves the technical problem in existing contact devices where the protrusion on the spring that contacts the pin is suspended, and the elastic tongue on the spring is prone to excessive deformation as the pin is inserted.

[0028] Example 2, based on Example 1, provides a high-current, low-cost contact component, such as... Figure 1 , Figure 4 and Figure 5 As shown, two springs 10 are symmetrically arranged within the socket base 2, and two ribs 9 are symmetrically arranged within the socket base 2. That is, two springs 10 are symmetrically arranged within the socket base 2. When the pin 14 is inserted, the two symmetrically arranged springs 10 respectively contact and conduct with the pin 14. The arrangement of two springs 10 increases the number of springs 10 in contact with the pin 14, thus enhancing the current-carrying capacity of the contact element.

[0029] Example 3, based on Example 2, provides a high-current, low-cost contact component, such as... Figure 3As shown, at least two elastic sheets 11 are provided on the reed body 15. By providing at least two elastic sheets 11 on the reed body 15, when the pin 14 is inserted, at least two elastic sheets 11 on the reed body 15 are in contact with the pin 14 and conduct electricity. The increase in the number of elastic sheets 11 in contact with the pin 14 makes the current carrying capacity of the contact stronger.

[0030] Example 4, based on Example 3, provides a high-current, low-cost contact component, such as... Figure 3 As shown, the protrusions 12 on two adjacent elastic sheets 11 are staggered. That is, the protrusions 12 are staggered in the insertion direction of the pin 14, which allows two adjacent protrusions 12 to contact the pin 14 one after the other, making the insertion and extraction force of the pin 14 more gentle.

[0031] Example 5, based on Example 4, provides a high-current, low-cost contact component, such as... Figure 4 As shown, the protrusions 12 on the spring 10 are located on an arc, and the corresponding ribs 9 are arc-shaped. That is, the ribs 9 are set as arc-shaped ribs, and the corresponding protrusions 12 are located on an arc. The arc-shaped ribs provide support for the protrusions 12 on the arc. This ensures that one rib 9 can simultaneously and stably support multiple protrusions 12 on the spring 10, while also ensuring that the protrusions 12 on the spring 10 are not in a straight line, making the insertion and extraction force of the pin 14 more gentle.

[0032] Example 6, based on Example 5, provides a high-current, low-cost contact component, such as... Figure 3 and Figure 4 As shown, both ends of the elastic sheet 11 are integrally connected to the spring body 15. At least two protrusions 12 are provided on the elastic sheet 11 along the insertion direction of the pin 14, and at least two ribs 9 are provided on the socket base 2 along the insertion direction of the pin 14. The elastic sheet 11 is integrally connected to the spring body 15 at both ends, meaning both ends of the elastic sheet 11 are connected to the spring body 15. This makes the spring 10, composed of the elastic sheet 11 and the two spring bodies 15, more stable and facilitates the connection of the spring 10 within the socket base 2. The provision of at least two protrusions 12 on the elastic sheet 11 along the insertion direction of the pin 14 increases the number of protrusions 12 contacting the pin 14 in the insertion direction, further enhancing the current-carrying capacity of the contact. The provision of at least two ribs 9 on the socket base 2 ensures that the at least two protrusions 12 on the elastic sheet 11 along the insertion direction of the pin 14 can be supported by the ribs 9.

[0033] Example 7, based on Example 6, provides a high-current, low-cost contact component, such as... Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the socket base 2 is provided with a front stop block 5 and a rear stop block 16. The front stop block 5 and the rear stop block 16 are arranged sequentially along the insertion direction of the pin 14. The front stop block 5 and the rear stop block 16 are respectively arranged at the front end and the rear end of the spring 10. The front stop block 5 and the rear stop block 16 are provided to guide the pin 14 during insertion and to center the pin 14 after insertion, preventing the pin 14 from deviating within the socket base 2 and ensuring sufficient contact between the pin 14 and the spring 10.

[0034] Example 8, based on any one of Examples 1 to 7, provides a high-current, low-cost contact element, such as... Figure 1 , Figure 3 and Figure 4 As shown, one end of the spring 10 is provided with a connecting hole 13, and the corresponding insertion base 2 is provided with a fixing hole 8. One end of the spring 10 is fixed to the insertion base 2 by a rivet passing through the connecting hole 13 and the fixing hole 8 in sequence. The other end of the spring 10 is connected to the insertion base 2 by rivetless riveting technology or laser welding. That is, one end of the spring 10 is connected to the insertion base 2 by rivetless riveting technology or laser welding, and the other end of the spring 10 is fixed to the insertion base 2 by a rivet passing through the connecting hole 13 and the fixing hole 8 in sequence. The use of rivetless riveting technology to connect the spring 10 to the insertion base 2 results in low connection resistance between the spring 10 and the insertion base 2, low connection cost, and a more robust and reliable connection. Rivetless riveting technology applies instantaneous high pressure using a riveting machine and a special mold, causing cold extrusion deformation of multi-layer sheet materials to form internal inlaid dots, achieving rivetless mechanical interlocking and fastening without the need for traditional rivets. The connection hole 13 is located on the spring body 15 at one end of the spring 10.

[0035] Example 9, based on Example 8, provides a high-current, low-cost contact component, such as... Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, the socket base 2 includes a cable connector 3 for connecting wires and a socket head 4 for inserting pins 14, wherein the cable connector 3 and the socket head 4 are integrally connected. This integral connection reduces the connection resistance between the cable connector 3 and the socket head 4, thus improving the conductivity of the socket base 2. Two spring contacts 10 are symmetrically arranged within the socket head 4 of the socket base 2.

[0036] Example 10, based on Example 9, provides a high-current, low-cost contact component, such as... Figure 1 and Figure 2As shown, the socket head 4 has a dovetail groove 6 on one side and a dovetail 7 on the other side. When the socket head 4 is bent, the dovetail 7 and the dovetail groove 6 interlock to form a rectangular cavity 1 for the insertion of the pin 14. The cable connection part 3 is bent to form upper and lower layers, which are connected by rivetless riveting technology. The dovetail groove 6 and the dovetail 7 are designed to allow the socket head 4 to interlock after bending, ensuring the stability of the formed rectangular cavity 1. The upper and lower layers of the cable connection part 3 are connected by rivetless riveting technology, making the upper and lower layers a stable and solid whole. The two springs 10 are symmetrically arranged in the rectangular cavity 1 of the socket head 4.

[0037] It should be noted that in the title of this application, "A High Current Low Cost Contact", at least two protrusions 12 are provided on the elastic sheet 11 along the insertion direction of the pin 14, and at least two of the protrusions 12 contact the pin 1. The number of contacts is large. Because the spring sheet 10 is connected to the socket base 2 using rivetless riveting technology, the connection resistance between the spring sheet 10 and the socket base 2 is small, so the conductivity is strong. Therefore, it is called a high current contact. Compared with other terminals, this application does not require an additional steel sleeve to support the terminal, so it is called low cost contact.

[0038] In Example 10, the first step is blanking: a copper alloy sheet is stamped into a planar unfolded state of the insertion hole base 2, and another copper alloy sheet is stamped into the shape shown below. Figure 3 The spring 10 shown; The second step is riveting or welding: rivet one end of the two spring pieces 10 to the corresponding position of the socket base 2, and connect the other end of the two spring pieces 10 to the socket base 2 by rivetless riveting technology or by laser welding, so that the spring pieces 10 and the socket base 2 are tightly attached together, and the two spring pieces 10 are symmetrically arranged in the socket base 2. The third step is forming: the socket base 2 is bent and formed. After bending, the dovetail 7 and the dovetail groove 6 on the socket base 2 are interlocked to form a rectangular cavity 1 for the insertion of the pin 14.

[0039] When the contact of this application is used, the pin 14 is inserted into the rectangular cavity 1 along the direction of the elastic sheet 11. The pin 14 contacts the elastic sheet 11, and the elastic sheet 11 is squeezed and opens to both sides to ensure that the pin 14 is inserted smoothly. After power is applied, the current flows through the cable from the cable connection part 3 through the socket base 2, and is transmitted to the spring 10 from the mating surface of the socket base 2 and the spring sheet 10, the welding part and the riveting point. Then, it is connected to the pin 14 through the elastic sheet 11 on the spring sheet 10.

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

Claims

1. A high-current, low-cost contact component, comprising a socket base (2) and a spring (10), characterized in that, The spring (10) is connected inside the socket base (2); the spring (10) includes a spring body (15), the spring body (15) is provided with an elastic sheet (11), the elastic sheet (11) is provided with a protrusion (12) for adapting to contact and conduct current with the pin (14), and the socket base (2) is provided with a rib (9) for supporting the protrusion (12).

2. The high-current, low-cost contact element according to claim 1, characterized in that: Two springs (10) are symmetrically arranged in the socket base (2), and two ribs (9) are symmetrically arranged in the socket base (2).

3. The high-current, low-cost contact element according to claim 2, characterized in that: At least two elastic sheets (11) are provided on the reed body (15).

4. The high-current, low-cost contact element according to claim 3, characterized in that: The protrusions (12) on two adjacent elastic sheets (11) are staggered.

5. The high-current, low-cost contact element according to claim 4, characterized in that: The protrusion (12) on the spring (10) is located on an arc line, and the corresponding rib (9) is arc-shaped.

6. The high-current, low-cost contact element according to claim 5, characterized in that: The two ends of the elastic sheet (11) are integrally connected to the spring body (15). At least two protrusions (12) are provided on the elastic sheet (11) along the insertion direction of the pin (14), and at least two ribs (9) are provided on the socket base (2) along the insertion direction of the pin (14).

7. The high-current, low-cost contact element according to claim 6, characterized in that: The socket base (2) is provided with a front stop block (5) and a rear stop block (16). The front stop block (5) and the rear stop block (16) are arranged sequentially along the insertion direction of the pin (14). The front stop block (5) and the rear stop block (16) are respectively arranged at the front end and the rear end of the spring (10).

8. The high-current, low-cost contact element according to any one of claims 1 to 7, characterized in that: One end of the spring (10) is provided with a connecting hole (13), and the corresponding socket base (2) is provided with a fixing hole (8). One end of the spring (10) is fixed to the socket base (2) by rivets passing through the connecting hole (13) and the fixing hole (8) in sequence. The other end of the spring (10) is connected to the socket base (2) by rivetless riveting technology or laser welding.

9. The high-current, low-cost contact element according to claim 8, characterized in that: The socket base (2) includes a cable connection part (3) for connecting wires and a socket head (4) for inserting pins (14), wherein the cable connection part (3) and the socket head (4) are integrally connected.

10. The high-current, low-cost contact element according to claim 9, characterized in that: The head of the socket (4) has a dovetail groove (6) on one side and a dovetail (7) on the other side. When the head of the socket (4) is bent, the dovetail (7) and the dovetail groove (6) are engaged to form a rectangular cavity (1) for the insertion of the pin (14). The cable connection part (3) is bent to form two layers, and the two layers are connected by rivetless riveting technology.

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