A split connector suitable for use with a circular terminal

Abstract

The utility model relates to a kind of connector, specifically to a kind of split type connector suitable for circular terminal.Compared with prior art, assembly area is equipped on the circular terminal, including sheath body and cover plate;Sheath body is provided with at least one slot, and crimping block is arranged in the slot;Circular terminal is inserted into the slot by the slot opening set on the rear end surface of sheath body, and the assembly area of circular terminal and crimping block are cooperatively arranged;The length of slot opening is greater than the diameter of circular terminal;The top surface of sheath body at least at the slot is set to open, and the cover plate is covered on the top surface opening of sheath body;The cover plate is provided with limiting protrusion, and the limiting protrusion is pressed to set the circular terminal.The utility model solves the problem that the structure size of the connector in the prior art is large, the space utilization is low, and it is still difficult to meet the existing use demand for the connector.The present scheme achieves the design purpose of reducing the overall size of the connector, realizing miniaturization and low height.

Description

Technical Field

[0001] This utility model relates to a connector, specifically a split connector suitable for circular terminals. Background Technology

[0002] The connector body can be divided into a sheath and terminals, which are key structures used in conventional applications to achieve current or signal transmission. Taking the automotive industry, which widely uses connectors, as an example, as people's requirements for various functions of automobiles continue to increase, the functional requirements of automotive parts are also increasing. At the same time, products are becoming increasingly lightweight, miniaturized, and integrated, thus placing demands on connectors for small size and stable performance.

[0003] In conventional connectors, the mating of terminals and slots requires an elastic structure for guidance, positioning, and reliable assembly. However, when this elastic structure is directly formed onto the terminals during stamping, its reliability is low, and rework during wire harness assembly may lead to its failure, resulting in malfunction. Conversely, when the elastic structure is injection molded onto the slot, it requires more space for elastic deformation to prevent breakage. Therefore, existing conventional connectors struggle to meet the dual requirements of small size and stable performance.

[0004] For example, CN219576035U discloses a miniaturized split-type sealed connector, including a socket terminal and a socket sheath assembly. The socket sheath assembly includes an upper body and a lower body connected to each other. The lower body has a sealing connection part, and the inner side of the sealing connection part has a sealing gasket for sealing between the socket terminal and the socket sheath assembly. The outer side of the sealing connection part has a sealing ring for sealing between the socket sheath assembly and the interface. The socket terminal passes through the sealing gasket and snaps into the upper body. The upper body has a TPA structure to increase the holding force of the socket terminal. This solution reduces the volume of the sheath through the split structure, but it still uses elastic structures such as springs and spring plates, and also adds a TPA hook structure. Although it reduces the volume and improves the performance stability to a certain extent compared with existing conventional connectors, it still has a large volume and a relatively complex structure, and there is room for further reduction in volume. Based on this, in order to meet the functional requirements while reducing the connector size and further improving the space utilization, this solution designs a split-type connector suitable for circular terminals. Utility Model Content

[0005] The purpose of this invention is to provide a split-type connector suitable for circular terminals to solve at least one of the aforementioned problems. This addresses the issue that existing connectors suffer from large structural volume and low space utilization, failing to meet current usage requirements. This solution replaces the deformation space required for the elastic structure during unidirectional insertion through structural design, thereby reducing the overall size of the connector and achieving miniaturization and height reduction.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A split connector suitable for circular terminals, wherein the circular terminals are provided with an assembly area, including a sheath body and a cover plate;

[0008] The sheath body is provided with at least one slot, and a crimping block is provided in the slot; the circular terminal is inserted into the slot through the slot opening on the rear end face of the sheath body, and the assembly area of ​​the circular terminal and the crimping block are fitted together to achieve one-time locking of the circular terminal in the sheath body; the length of the slot opening is greater than the diameter of the circular terminal.

[0009] The sheath body has an opening at least at the top surface of the slot, and the cover plate covers the opening on the top surface of the sheath body; the cover plate is provided with a limiting protrusion, and the limiting protrusion presses against the circular terminal to achieve secondary locking of the circular terminal inside the sheath body.

[0010] Preferably, a PIN hole is provided on the front end face of the sheath body;

[0011] The number of PIN holes is equal to the number of slots, and the PIN holes are located at the end of the slots.

[0012] Preferably, the pressing block includes a baffle and a guide groove;

[0013] The baffle has a support opening in the middle for fitting the circular terminal assembly area, and the top of the support opening is through-hole.

[0014] The guide grooves are located on the top of both sides of the baffle, and the guide grooves face the support opening.

[0015] Preferably, the cross-section of the baffle is U-shaped.

[0016] Preferably, the cross-section of the guide groove is a fan-shaped section with two straight sides.

[0017] Preferably, the crimping block has a spindle-shaped structure that is wide in the middle and narrow at both ends, wherein the widest distance of the crimping block matches the width of the assembly area, and the length of the crimping block matches the diameter of the circular terminal.

[0018] Preferably, the slot has a U-shaped cross-section;

[0019] The slot has an insertion section at the end near the slot opening and a pressing section at the end away from the slot opening. The insertion section and the pressing section are connected by a transition section. The pressing block is located on the pressing section, and the width of the insertion section is not less than the width of the pressing section.

[0020] Preferably, the cross-section of the limiting protrusion is an obtuse triangle, and the apex of the limiting protrusion has a rounded corner structure.

[0021] Preferably, the front end face of the sheath body is provided with a plurality of card slots, and the front part of the cover plate is provided with a plurality of card blocks; the number of card slots and card blocks is equal, and the positions of the card slots and card blocks correspond one-to-one.

[0022] The cover plate is locked onto the top of the sheath body by engaging with the card slot and the card interface.

[0023] Preferably, the sheath body has a limiting block inside near the rear end face, and the cover plate has a limiting opening at the rear; the limiting block and the limiting opening are positioned correspondingly.

[0024] The cover plate is positioned at the top of the sheath body by engaging with the limiting block and the limiting port.

[0025] The working principle of this utility model is as follows:

[0026] In use, insert the circular terminal horizontally into the slot through the slot opening. When the circular terminal approaches the crimping block, tilt the circular terminal toward the top opening to avoid the crimping block and continue inserting. Then, when the crimping block is opposite to the assembly area, press down the terminal to make the assembly area and the crimping block cooperate to complete the first locking. Then, cover the top opening of the sheath body with the cover plate. The limiting protrusion on the cover plate presses against the circular terminal to restrict its movement in the direction perpendicular to the mating axis, thus achieving the function of secondary locking.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. This connector is suitable for round terminals. The sheath body adopts a cylindrical cavity formed by a U-shaped slot to accommodate the terminal. At the same time, it is equipped with a shuttle-shaped crimping block, which can eliminate the distinction between the orientation of the round terminals during assembly, effectively improving the production efficiency of wire harnesses.

[0029] 2. This solution uses a split structure of sheath body + cover plate, which makes the product structure simple, the function reliable, and has obvious cost advantages in production and processing.

[0030] 3. The split structure makes full use of the space before the sheath body and the cover plate are mated. By tilting the circular terminal during assembly to avoid the action of the crimping block, it replaces the elastic deformation space required when inserting in one direction, thereby reducing the overall size of the connector and achieving the design goal of miniaturization and low height.

[0031] 4. The primary locking mechanism formed by the crimping block and the assembly area, along with the secondary locking mechanism implemented by the limiting protrusion on the circular terminal, work together to achieve reliable limiting and locking of the circular terminal, thus replacing the function and effect of the TPA. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of the sheath body;

[0033] Figure 2 This is a schematic diagram of the cover plate.

[0034] Figure 3 This is a structural schematic diagram of the crimping block (view from the slot opening towards the inside of the slot);

[0035] Figure 4 A schematic diagram of the limiting protrusion (view from the slot opening towards the inside of the slot);

[0036] Figure 5 A schematic diagram of the structure when a circular terminal is inserted into the sheath body;

[0037] Figure 6 A schematic diagram of the structure when a circular terminal is tilted to avoid the crimping block;

[0038] Figure 7 This is a schematic diagram of the structure when a circular terminal is pressed into the sheath body;

[0039] Figure 8 This is a schematic diagram of the structure when the cover plate is closed onto the sheath body;

[0040] In the diagram: 1-Sheath body; 11-Slot; 12-Crimping block; 121-Baffle; 122-Guide groove; 13-PIN hole; 2-Cover plate; 21-Limiting protrusion. Detailed Implementation

[0041] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0042] Example 1

[0043] A split connector suitable for circular terminals, such as Figures 1-8 As shown, the circular terminal is provided with an assembly area, including a sheath body 1 and a cover plate 2;

[0044] The sheath body 1 is provided with at least one slot 11 (Cavity), and a crimping block 12 is provided in the slot 11; the circular terminal is inserted into the slot 11 through the opening of the slot 11 on the rear end face of the sheath body 1, and the assembly area of ​​the circular terminal and the crimping block 12 are fitted together to achieve one-time locking of the circular terminal in the sheath body 1; the length of the slot 11 opening is greater than the diameter of the circular terminal.

[0045] The sheath body 1 has an opening on its top surface at least at the slot 11, and the cover plate 2 covers the opening on the top surface of the sheath body 1; the cover plate 2 is provided with a limiting protrusion 21, which presses against the circular terminal to achieve secondary locking of the circular terminal within the sheath body 1.

[0046] More specifically, in this embodiment:

[0047] like Figure 1 , 2 As shown, this split connector mainly consists of two parts: the housing body 1 and the cover plate 2. This split connector is used to insert and assemble circular terminals.

[0048] Specifically, such as Figure 1 , 3 As shown, the top of the sheath body 1 has an open structure, with six slots 11 arranged side by side inside, allowing six circular terminals to be connected. The beginning of each slot 11 is located on the rear end face of the sheath body 1, forming the slot 11 opening. The length of the slot 11 opening must be greater than the diameter of the circular terminal. The end of each slot 11 is located on the front end face of the sheath body 1, forming a PIN hole 13. Furthermore, each slot 11 has a crimping block 12 inside for mating with the assembly area on the circular terminal. The slot 11 has a U-shaped cross-section, forming a cylindrical channel that mates with the circular terminal. The portion of the slot 11 near the opening is an insertion section, and the portion near the PIN hole 13 is a crimping section. The insertion section and the crimping section are connected by a transition section. The crimping block 12 is located within the crimping section, and the width of the insertion section is not less than the width of the crimping section to facilitate dimensional clearance between the circular terminal and the wire after crimping. The crimping block 12 specifically includes a baffle 121 and a guide groove 122, as shown... Figure 3As shown, the baffle 121 has a U-shaped cross-section, with a support opening in the middle for fitting the circular terminal assembly area. The top of the support opening is through-hole. The guide groove 122 is connected to the top surface of the baffle 121, and its cross-section is a fan-shaped structure with two straight sides inclined towards the support opening. Its lower end is connected to the support opening of the baffle 121 and serves as a guide to facilitate the smooth entry of the circular terminal. In addition, the crimping block 12 has a spindle-shaped structure, with pointed ends and a wide middle section. The distance of the widest part in the middle section matches the axial length of the circular terminal assembly area, and the length of the crimping block 12 matches the diameter of the circular terminal. This eliminates the need to distinguish the corresponding direction of the circular terminal during assembly, thus improving the overall production efficiency of the wire harness.

[0049] Cover plate 2, such as Figure 2 , 4 As shown, it covers the top opening of the sheath body 1, and at each position corresponding to a slot 11, the cover plate 2 is provided with a limiting protrusion 21 facing the slot 11 to assist in locking the circular terminal inserted into the slot 11; the limiting protrusion 21, as shown... Figure 4 As shown, its cross-section adopts an obtuse triangular structure, with the apex facing the slot 11. At least the apex is rounded to achieve radial limiting of the circular terminal while avoiding damage to it. The limiting protrusion 21 is preferably located above the corresponding crimping block 12 to apply locking in both the upper and lower directions in the assembly area.

[0050] Furthermore, to ensure proper assembly between the cover plate 2 and the sheath body 1, the sheath body 1 in this embodiment has three card slots spaced along its length on its front end face (located above the PIN hole 13). Correspondingly, three card blocks are spaced apart on the front part of the cover plate 2. The card slots and card blocks are positioned one-to-one, allowing the cover plate 2 to reliably engage with the sheath body 1 by engaging the card slots with the card blocks. Simultaneously, to further ensure accurate assembly of the cover plate 2, a limiting block is provided on the inner wall of the rear end face of the sheath body 1, located at its center. Correspondingly, a limiting groove is provided on the rear part and center of the cover plate 2. During assembly, accurate docking and positioning are achieved by aligning the limiting groove with the limiting block.

[0051] When using the split connector in this solution, such as Figures 5-8 As shown in sequence, it has four stages:

[0052] First stage, terminal insertion: Insert the end of the round terminal into the slot 11 of the sheath body 1 through the opening of the slot 11. When the end of the round terminal approaches or abuts the crimping block 12, the second stage is carried out.

[0053] The second stage is terminal tilting: tilt the circular terminal upwards, i.e., towards the opening of the sheath body 1, and continue to insert it, so that the circular terminal moves forward past the crimping block 12 as a whole, avoiding being blocked by the crimping block 12, and then proceed to the third stage.

[0054] The third stage is to complete the terminal insertion: After the circular terminal is inserted into the assembly area and the position corresponding to the crimping block 12, the circular terminal is pressed towards the slot 11 so that the assembly area and the crimping block 12 are fitted together. The circular terminal enters the support opening of the baffle 121 through the guide groove 122, completing the first locking of the circular terminal.

[0055] The first to third stages are performed sequentially on each inserted circular terminal. After all are completed, the fourth stage begins.

[0056] In the fourth stage, the cover plate 2 is assembled: the limiting groove on the cover plate 2 is aligned with the limiting block on the sheath body 1. Then, the cover plate 2 is closed onto the sheath body 1 by the snap-fit ​​of the snap-fit ​​block and the snap-fit ​​interface. At this time, each limiting protrusion 21 on the cover plate 2 will abut or press against the surface of each circular terminal to restrict the movement of the circular terminal in the direction perpendicular to the mating axis (radial / vertical), thereby playing a secondary locking role for the circular terminal.

[0057] Since the split connector can replace the function of the TPA by implementing double locking of the circular terminal by the crimping block 12 and the limiting protrusion 21, the split connector does not need to set up an additional TPA for limiting the circular terminal, which further reduces the use of parts and the overall structural volume and complexity.

[0058] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model without departing from its scope should be within the protection scope of the present utility model.

Claims

1. A split connector suitable for circular terminals, wherein the circular terminal is provided with an assembly area, characterized in that, Includes the sheath body (1) and the cover plate (2); The sheath body (1) is provided with at least one slot (11), and a crimping block (12) is provided in the slot (11); the circular terminal is inserted into the slot (11) through the slot opening on the rear end face of the sheath body (1), and the assembly area of ​​the circular terminal and the crimping block (12) are fitted together to achieve one-time locking of the circular terminal in the sheath body (1); the length of the slot opening is greater than the diameter of the circular terminal; The sheath body (1) has an opening on its top surface at least at the slot (11), and the cover plate (2) covers the opening on the top surface of the sheath body (1); the cover plate (2) is provided with a limiting protrusion (21), which presses against the circular terminal to achieve secondary locking of the circular terminal in the sheath body (1).

2. A split connector suitable for circular terminals according to claim 1, characterized in that, A PIN hole (13) is provided on the front end face of the sheath body (1); The number of PIN holes (13) is equal to the number of slots (11), and the PIN holes (13) are located at the end of the slots (11).

3. A split connector suitable for circular terminals according to claim 1, characterized in that, The pressing block (12) includes a baffle (121) and a guide groove (122); The baffle (121) has a support opening in the middle for fitting the circular terminal assembly area, and the top of the support opening is through-hole. The guide groove (122) is located on the top of both sides of the baffle (121), and the guide groove (122) is oriented toward the support opening.

4. A split connector suitable for circular terminals according to claim 3, characterized in that, The cross-section of the baffle (121) is U-shaped.

5. A split connector suitable for circular terminals according to claim 3, characterized in that, The cross-section of the guide groove (122) is a fan-shaped straight edge.

6. A split connector suitable for circular terminals according to claim 1, characterized in that, The crimping block (12) is a spindle-shaped structure that is wide in the middle and narrow at both ends. The widest distance of the crimping block (12) matches the width of the assembly area, and the length of the crimping block (12) matches the diameter of the circular terminal.

7. A split connector suitable for circular terminals according to claim 1, characterized in that, The slot (11) has a U-shaped cross-section; The slot (11) is configured as an insertion section at one end near the slot opening and as a pressing section at the other end away from the slot opening. The insertion section and the pressing section are connected by a transition section. The pressing block (12) is disposed on the pressing section, and the width of the insertion section is not less than the width of the pressing section.

8. A split connector suitable for circular terminals according to claim 1, characterized in that, The cross section of the limiting protrusion (21) is an obtuse triangle, and the apex of the limiting protrusion (21) is rounded.

9. A split connector suitable for circular terminals according to claim 1, characterized in that, The front end face of the sheath body (1) is provided with several card interfaces, and the front part of the cover plate (2) is provided with several card blocks; the number of card interfaces and card blocks is equal, and the positions of the card interfaces and card blocks correspond one-to-one. The cover plate (2) is engaged on the top of the sheath body (1) by the engagement of the card block and the card interface.

10. A split connector suitable for circular terminals according to claim 1, characterized in that, The sheath body (1) has a limiting block inside near the rear end face, and the cover plate (2) has a limiting opening at the rear; the limiting block and the limiting opening are positioned correspondingly. The limiting block and the limiting port are engaged to limit the position of the cover plate (2) on the top of the sheath body (1).

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