Connector terminal

Abstract

The utility model discloses a connector terminal, including connecting end and auxiliary cover, connecting end includes connecting conductor and the multiple elastic contact arms of connecting on connecting conductor, and multiple elastic contact arms are annular array, and the auxiliary cover includes the multiple elastic pressure arm of ring part and the connection in ring part, and ring part is set up in the connecting conductor outer periphery, and the elastic pressure arm is arranged in the outside of elastic contact arm to support elastic contact arm. This connector terminal adds the auxiliary cover in the connecting end, and the elastic pressure arm of auxiliary cover provides the support force to the elastic contact arm of connecting end from the outside, thereby increases the plugging force between connecting end and external terminal, reduces the risk that connector plug and connector socket are loose because of larger vibration. Compared with the mode that ring part is directly set up in the outer periphery of multiple elastic contact arms, and the elastic pressure arm supports elastic contact arm and will not reduce the elastic contact arm activity stroke, is favorable to make this connector terminal and the external terminal plug -in of larger diameter range.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to connector terminals. Background Technology

[0002] In electronic devices, electrical connectors are typically used to achieve electrical connections between electrically independent components. Electrical connectors enable electrical conduction between two independent electrical structures. Energy storage connectors are a common type of electrical connector, typically used for high-current connections.

[0003] Existing technologies typically incorporate crown springs or multiple elastic contact arms arranged in a ring on the connector terminals to facilitate plug-receptacle connection. A single crown spring or a single layer of elastic contact arms provides limited insertion and extraction force, making it difficult to meet the needs of applications requiring greater force, such as situations where the plug and receptacle experience significant vibrations leading to substantial pull-out forces. Furthermore, connector design and usage are limited by their very narrow range of terminal diameter compatibility. For example, a design might be specific to a particular terminal size. While it may provide adequate insertion and extraction force and a secure connection with matching or slightly larger terminals, switching to smaller diameter terminals can result in a loose connection, insufficient insertion and extraction force, and a risk of accidental detachment. In other words, existing connectors suffer from a limited range of terminal diameter compatibility and poor compatibility. Utility Model Content The technical problem to be solved by this utility model is to provide a connector terminal that enhances the insertion and extraction force of a single-layer elastic contact arm.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a connector terminal, including a connecting end and an auxiliary sleeve. The connecting end includes a connecting conductor and a plurality of elastic contact arms connected to the connecting conductor. The plurality of elastic contact arms are arranged in a ring array. The auxiliary sleeve includes a collar portion and a plurality of elastic pressing arms connected to the collar portion. The collar portion is sleeved on the outer periphery of the connecting conductor, and the elastic pressing arms are located on the outside of the elastic contact arms to support the elastic contact arms.

[0005] Furthermore, the elastic pressure arm and the elastic contact arm are set in a one-to-one correspondence.

[0006] Furthermore, the collar portion is provided with an inwardly protruding locking block, and the connecting end is provided with a locking groove that mates with the locking block.

[0007] Furthermore, a groove is formed between two adjacent elastic contact arms.

[0008] Furthermore, the end of the elastic pressure arm away from the collar is inclined inward relative to the other end.

[0009] Furthermore, the flexible contact arm includes a connecting section and a contact section, the contact section being connected to the connecting conductor via the connecting section, and the contact section being bent and protruding inward.

[0010] Furthermore, the resilient contact arm also includes an outwardly flared portion, which is formed by bending and extending the contact section outward from the end away from the connecting section.

[0011] Furthermore, the width of the everted portion gradually increases from one end closer to the contact section to the other end.

[0012] Furthermore, it also includes a crimping end and a connecting part. The crimping end is connected to the connecting conductor through the connecting part. The connecting end, the crimping end, and the connecting part are an integrally formed structure.

[0013] Furthermore, the crimping end and / or connecting conductor are open loops.

[0014] The beneficial effects of this invention are as follows: An auxiliary sleeve is added to the outside of the connector terminal. The elastic pressing arm of the auxiliary sleeve provides support to the elastic contact arm of the connector terminal from the outside, thereby increasing the insertion and extraction force between the connector terminal and the external terminal and reducing the risk of the connector plug and connector socket becoming loose due to large vibrations. Compared to the method where the collar is directly fitted onto the outer periphery of multiple elastic contact arms, using the elastic pressing arm to support the elastic contact arms does not reduce the travel of the elastic contact arms, which is beneficial for the connector terminal to be inserted and mated with external terminals of a larger diameter range. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the connector terminal in Embodiment 1 of this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the connector terminal in Embodiment 1 of this utility model. Figure 2 ; Figure 3 This is an exploded view of the connector terminal of Embodiment 1 of this utility model; Figure 4 This is a schematic diagram of the auxiliary sleeve in the connector terminal of Embodiment 1 of this utility model; Figure 5 This is a cross-sectional view of the connector terminal of Embodiment 1 of this utility model.

[0016] Label Explanation: 1. Connecting end; 11. Connecting conductor; 12. Flexible contact arm; 121. Connecting section; 122. Contact section; 123. Outward-facing part; 13. Slot; 2. Auxiliary sleeve; 21. Loop part; 22. Elastic pressure arm; 23. Locking block; 3. Wire end; 4. Connecting parts. Detailed Implementation

[0017] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0018] Please refer to Figure 1 The connector terminal includes a connecting end 1 and an auxiliary sleeve 2. The connecting end 1 includes a connecting conductor 11 and a plurality of elastic contact arms 12 connected to the connecting conductor 11. The plurality of elastic contact arms 12 are arranged in a ring array. The auxiliary sleeve 2 includes a collar portion 21 and a plurality of elastic pressing arms 22 connected to the collar portion 21. The collar portion 21 is sleeved on the outer periphery of the connecting conductor 11, and the elastic pressing arms 22 are located on the outside of the elastic contact arms 12 to support the elastic contact arms 12.

[0019] As can be seen from the above description, the beneficial effects of this utility model are as follows: An auxiliary sleeve 2 is added to the outside of the connecting end 1 of this connector terminal. The elastic pressing arm 22 of the auxiliary sleeve 2 provides support force to the elastic contact arm 12 of the connecting end 1 from the outside, thereby increasing the insertion and extraction force between the connecting end 1 and the external terminal and reducing the risk of the connector plug and connector socket becoming loose due to large vibrations. Compared to the method where the collar portion 21 is directly sleeved on the outer periphery of multiple elastic contact arms 12, using the elastic pressing arm 22 to support the elastic contact arms 12 does not reduce the travel of the elastic contact arms 12, which is beneficial for the connector terminal to be inserted and mated with external terminals with a larger diameter range. For example, taking the power supply connection application of energy storage devices as an example, when this connector terminal is used in energy storage devices, the output device draws power by inserting the plug terminal into the connector terminal. Often, depending on the different current loads, plug terminals with diameters ranging from φ10mm to φ12mm are required. Because the elastic pressure arm of the auxiliary sleeve provides additional support, the connector can fit tightly with both the smaller diameter φ10mm terminal and the larger diameter φ12mm terminal, ensuring that sufficient and stable insertion and extraction force can be provided.

[0020] Furthermore, the elastic pressure arm and the elastic contact arm are set in a one-to-one correspondence.

[0021] As can be seen from the above description, the auxiliary sleeve 2 can provide support for all elastic contact arms 12, greatly increasing the insertion and extraction force.

[0022] Furthermore, the collar portion 21 is provided with an inwardly protruding locking block 23, and the connecting end 1 is provided with a locking groove 13 that cooperates with the locking block 12.

[0023] As described above, the locking block 23 can restrict the relative positional relationship between the auxiliary sleeve 2 and the connecting end 1, so that the elastic pressing arm 22 is aligned with the elastic contact arm 12, so that the elastic pressing arm 22 accurately provides support force to the elastic contact arm 12.

[0024] Furthermore, a groove 13 is formed between two adjacent elastic contact arms 12.

[0025] As can be seen from the above description, the structure of the connecting end 1 can be simplified and the production cost reduced by using the gap between the two elastic contact arms 12 to cooperate with the locking block 23.

[0026] Furthermore, the end of the elastic pressure arm 22 away from the collar portion 21 is inclined inward relative to the other end.

[0027] As described above, the inwardly inclined elastic pressing arm 22 can stably provide support for the elastic contact arm 12, ensuring a large insertion and extraction force between the connector terminal and the external terminal.

[0028] Furthermore, the elastic contact arm 12 includes a connecting section 121 and a contact section 122. The contact section 122 is connected to the connecting conductor 11 through the connecting section 121, and the contact section 122 is bent and protrudes inward.

[0029] As can be seen from the above description, the inward bending and protrusion of the contact section 122 facilitates close contact with the external terminal, reducing the risk of accidental disconnection between the connector terminal and the external terminal.

[0030] Furthermore, the elastic contact arm 12 also includes an outwardly folded portion 123, which is formed by bending and extending the contact segment 122 outwardly from the end away from the connecting segment 121.

[0031] As can be seen from the above description, the outward-facing portion 123 can serve as a guide, facilitating the insertion of external terminals between multiple elastic contact arms 12.

[0032] Furthermore, the width of the outwardly turned portion 123 gradually increases from one end near the contact segment 122 to the other end.

[0033] As can be seen from the above description, increasing the width of the end of the outward-facing portion 123 that is away from the contact section 122 is beneficial to improving the guiding performance of the outward-facing portion 123 and further reducing the difficulty of inserting the external terminal between multiple elastic contact arms 12.

[0034] Furthermore, it also includes a wire clamping end 3 and a connecting part 4. The wire clamping end 3 is connected to the connecting conductor 11 through the connecting part 4. The connecting end 1, the wire clamping end 3, and the connecting part 4 are integrally formed into a single structure.

[0035] As described above, the crimping end 3 is used to connect the cable. The crimping end 3, the connecting part 4 and the connecting end 1 are integrally formed, which effectively reduces the overall resistance of the connector terminals, avoids the risk of component separation, and thus improves the service life. In addition, the integrated structure can reduce the production process, thereby improving production efficiency and reducing production costs.

[0036] Furthermore, the wire end 3 and / or the connecting conductor 11 are open rings.

[0037] As can be seen from the above description, the wire end 3 and / or the connecting conductor 11 can be formed by bending process, which has high production efficiency and can ensure a large contact and conduction area.

[0038] Embodiment 1 of this utility model is: a connector terminal, which is used as an electrical connection conductor element in various connectors (such as power connectors, energy storage connectors, etc.).

[0039] like Figure 1 and Figure 2 As shown, the connector terminal includes a connecting end 1 and an auxiliary sleeve 2. The connecting end 1 includes a connecting conductor 11 and multiple elastic contact arms 12 connected to the connecting conductor 11. The multiple elastic contact arms 12 are arranged in a ring array. The auxiliary sleeve 2 includes a collar portion 21 and multiple elastic pressing arms 22 connected to the collar portion 21. The collar portion 21 is sleeved on the outer periphery of the connecting conductor 11, and the elastic pressing arms 22 are located outside the elastic contact arms 12 to support the elastic contact arms 12. Specifically, the elastic pressing arms 22 are arranged in a one-to-one correspondence with the elastic contact arms 12. The elastic contact arms 12 and the elastic pressing arms 22 are aligned sequentially from the inside to the outside, and the outer wall surface of the elastic contact arm 12 is in contact with the inner wall surface of the elastic pressing arm 22. The auxiliary sleeve 2 is made of metal. In other embodiments, it is also feasible to have a small gap between the elastic pressing arms 22 and the elastic contact arms 12; it is also feasible to have multiple elastic pressing arms 22 and multiple elastic contact arms 12 arranged alternately; it is also feasible to have the auxiliary sleeve 2 made of plastic.

[0040] In order to provide stable support for the elastic contact arm 12, the end of the elastic pressure arm 22 away from the collar portion 21 is inclined inward relative to the other end.

[0041] like Figure 3 As shown, the elastic contact arm 12 includes a connecting section 121 and a contact section 122. The contact section 122 is connected to the connecting conductor 11 via the connecting section 121, and the contact section 122 is bent and protrudes inward. The elastic contact arm 12 also includes an outwardly flared portion 123, which is formed by bending and extending the contact section 122 outward from the end away from the connecting section 121. The width of the outwardly flared portion 123 gradually increases from the end closer to the contact section 122 to the other end.

[0042] like Figure 3As shown, the connector terminal also includes a crimping end 3 and a connecting portion 4. The crimping end 3 is connected to the connecting conductor 11 through the connecting portion 4. The connecting end 1, the crimping end 3, and the connecting portion 4 are integrally formed. Specifically, the crimping end 3, the connecting portion 4, and the connecting end 1 are made of copper, and the extension direction of the crimping end 3 is perpendicular to the extension direction of the connecting end 1. In other embodiments, the crimping end 3, the connecting portion 4, and the connecting end 1 can be made of other conductive materials, including but not limited to steel or gold; it is also feasible for the extension direction of the crimping end 3 to be at an acute angle, an obtuse angle, or collinear with the extension direction of the connecting end 1.

[0043] like Figure 3 As shown, the wire clamping end 3 is an open ring. The connecting conductor 11 is also an open ring. In this embodiment, the cross-sections of the wire clamping end 3, the bent portion, and the connecting end 1 are all arc-shaped, and the axial direction of the elastic contact arm 12 is collinear with the axial direction of the connecting conductor 11. In other embodiments, the wire clamping end 3, the connecting portion 4, or the connecting conductor 11 can be configured as other open rings, such as polygonal rings or elliptical rings with openings.

[0044] like Figure 4 and Figure 5 As shown, the collar portion 21 has an inwardly protruding locking block 23, and the connecting end 1 has a locking groove 13 that mates with the locking block 23. In this embodiment, a locking groove 23 is formed between two adjacent elastic contact arms 12. The number of locking blocks 23 is the same as the number of elastic contact arms 12, and a locking block 23 is provided between any two adjacent elastic contact arms 12. The locking block 23 is L-shaped. The locking block 23 abuts against the end face of the connecting conductor 11 to limit the relative position of the auxiliary sleeve 2 and the connecting conductor 11. The locking block 23, the elastic pressing arm 22, and the collar portion 21 are integrally formed into a single structure. In other embodiments, it is also feasible for the locking groove 13 to be formed on the connecting conductor 11.

[0045] As is easily understood, the connecting end 1 and the auxiliary sleeve 2 are detachably connected. When assembling the connecting end 1 and the auxiliary sleeve 2, an inward pressing force is applied to the multiple elastic contact arms 12 of the connecting end 1, causing the multiple elastic contact arms 12 to bend and retract inward. Then, the multiple elastic contact arms 12 are inserted into the inner side of the collar portion 21 of the auxiliary sleeve 2, ensuring that the locking block 23 of the auxiliary sleeve 2 is aligned with the locking groove 13. The auxiliary sleeve 2 is then slid along the connecting end 1 until the locking block 23 abuts against the end face of the locking groove 13. At this time, the collar portion 21 is fitted around the outer periphery of the connecting conductor 11, thus realizing the assembly of the connecting end 1 and the auxiliary sleeve 2 (e.g., Figure 1 (As shown). When it is necessary to separate the connecting end 1 and the auxiliary sleeve 2, simply apply a pushing force to the auxiliary sleeve 2 to move it away from the connecting conductor 11 until the multiple elastic contact arms 12 exit the collar portion 21, thus separating the connecting end 1 and the auxiliary sleeve 2 (as shown). Figure 3 (As shown).

[0046] In summary, the connector terminal provided by this utility model features an auxiliary sleeve added to the outside of the connecting end. The elastic pressing arm of the auxiliary sleeve provides support to the elastic contact arm of the connecting end from the outside, thereby increasing the insertion and extraction force between the connecting end and the external terminal and reducing the risk of the connector plug and connector socket becoming loose due to significant vibration. Compared to the method where the collar is directly fitted onto the outer periphery of multiple elastic contact arms, using the elastic pressing arm to support the elastic contact arms does not reduce the travel of the elastic contact arms, which is beneficial for facilitating the insertion and mating of this connector terminal with external terminals of a larger diameter range.

[0047] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A connector terminal, characterized in that, It includes a connecting end and an auxiliary sleeve; the connecting end includes a connecting conductor and a plurality of elastic contact arms connected to the connecting conductor, the plurality of elastic contact arms being arranged in a ring array; the auxiliary sleeve includes a collar portion and a plurality of elastic pressing arms connected to the collar portion, the collar portion being sleeved on the outer periphery of the connecting conductor, and the elastic pressing arms being disposed outside the elastic contact arms to support the elastic contact arms.

2. The connector terminal according to claim 1, characterized in that, The elastic pressing arm and the elastic contact arm are arranged in a one-to-one correspondence.

3. The connector terminal according to claim 1, characterized in that, The collar portion is provided with an inwardly protruding locking block, and the connecting end is provided with a locking groove that mates with the locking block.

4. The connector terminal according to claim 3, characterized in that, The slot is formed between two adjacent elastic contact arms.

5. The connector terminal according to claim 1, characterized in that, The end of the elastic pressure arm away from the collar is inclined inward relative to the other end.

6. The connector terminal according to claim 1, characterized in that, The elastic contact arm includes a connecting section and a contact section. The contact section is connected to the connecting conductor through the connecting section, and the contact section is bent and protrudes inward.

7. The connector terminal according to claim 6, characterized in that, The elastic contact arm also includes an outwardly folded portion, which is formed by bending and extending the contact segment outward from the end away from the connecting segment.

8. The connector terminal according to claim 7, characterized in that, The width of the everted portion gradually increases from one end near the contact section to the other end.

9. The connector terminal according to claim 1, characterized in that, It also includes a wire clamping end and a connecting part, wherein the wire clamping end is connected to the connecting conductor through the connecting part, and the connecting end, the wire clamping end and the connecting part are integrally formed.

10. The connector terminal according to claim 9, characterized in that, The pressure terminal and / or the connecting conductor are open ring structures.

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