A connector and its shielding cover and crimp sleeve

Abstract

This utility model relates to the technical field of conductive connection devices, specifically to a connector and its shielding cover and crimping sleeve. The connector includes a shielding cover and a crimping sleeve. The tail end of the shielding cover has at least one set of spring claws extending outwards from the head of the shielding cover. The crimping sleeve has a contact section and a crimping section for crimping the cable shielding layer. The contact section is fitted onto each of the spring claws in the same set. The side of the spring claws facing away from the center of the area enclosed by the same set of spring claws has a portion that abuts against the inner circumferential surface of the contact section of the crimping sleeve. Because the spring claws of the shielding cover are covered by the crimping sleeve, the gaps between the spring claws are blocked by the crimping sleeve. This allows the crimping sleeve to enclose the same set of spring claws, improving the tightness of the shielding enclosure and reducing the likelihood of electromagnetic leakage at the spring claw gaps affecting the shielding performance.

Description

Technical Field

[0001] This utility model relates to the field of conductive connection device technology, specifically to a connector and its shielding cover and crimping sleeve. Background Technology

[0002] High-voltage connectors are required for the connection between high-voltage systems such as motors, electronic controls, and DC-DC converters in new energy vehicles. During current transmission, high-voltage connectors need to prevent interference leakage, which requires internal shielding. With the development of technology, higher requirements are placed on the shielding effectiveness of connectors. To ensure better shielding performance, the internal shielding of the connector needs to be more tightly wrapped.

[0003] The main structure of existing connectors can be found in [reference]. Figure 1 , Figure 2 , Figure 3 The connector includes a contact 1, an inner shell 2, a shielding cover 3, a crimping sleeve 4, and an outer shell. The contact 1 has a plug-in structure at its head for mating with the adapter connector and a crimping structure at its tail for crimping the cable core wires. The crimping sleeve 4 crimps the cable shielding layer. The contact 1 is installed in the inner shell 2. The shielding cover 3 is a cylindrical structure that fits over the inner shell 2. The tail end of the shielding cover 3 has an inwardly bent spring claw 31, forming a gap 32 between the spring claws 31. There is a protrusion between the roots of adjacent spring claws 31, and there is a gap between the protrusion and the spring claw. The spring claw 31 extends inward into the inner housing 2, forming a passageway for the cable to pass through. The crimping sleeve has a crimping section for crimping the cable shielding layer and a contact section for abutting against the spring claws. The contact section extends into the space enclosed by the spring claws 31, and the spring claws 31 press against the outer circumferential surface of the contact section of the crimping sleeve 4 to form contact, so that the cable shielding layer is conductive through the crimping sleeve 4 to the shielding cover 3. After the connector is inserted into the adapter connector, the head of the shielding cover 3 contacts and conducts with the shielding structure of the adapter connector. After the cable is wired, it is crimped and fixed with the contact 1 and the crimping sleeve 4. The contact 1, the crimping sleeve, the cable, the inner housing, and the shielding cover are installed as a whole in the outer housing. The tail of the outer housing is provided with a locking cap, which can generate a pushing force on the crimping sleeve to prevent it from slipping out.

[0004] In this type of connector, the shielding cover 3 contacts the outer circumference of the crimping sleeve 4, which extends into the shielding cover 3, via an inwardly bent ring of spring claws 31. However, a gap 32 exists between the spring claws 31. After the crimping sleeve contacts the ring of spring claws, due to the size and installation structure of the crimping sleeve, it cannot completely cover the gap, especially the gap at the root of the spring claw. Electromagnetic interference can still easily leak through this gap, resulting in insufficient shielding tightness and affecting shielding performance. Furthermore, because the spring claws are bent inwards and their ends need to be bent, the part of the spring claw that abuts against the crimping sleeve is relatively close to the center, occupying a significant amount of space. This can easily cause the spring claws to snag or scratch during the insertion of the contact into the inner housing, leading to operational difficulties. Utility Model Content

[0005] The purpose of this invention is to provide a connector that solves the problem that electromagnetic leakage can easily occur in the gaps at the spring claws, affecting the shielding performance, when the shielding cover of the current connector is formed by the inward bending of the spring claws and the contact between the crimp sleeve and the outer peripheral surface of the shielding cover. The purpose of this invention is also to provide a shielding cover and a crimp sleeve for a connector to solve the above problems.

[0006] The technical solution for the connector shielding cover of this utility model is as follows:

[0007] A connector shield has at least one set of spring claws extending outward from the head of the shield at its tail end. Each spring claw in the same set is fitted onto the contact section of a crimping sleeve. The side of the spring claw facing away from the center of the area enclosed by the same set of spring claws has a portion for abutting against the inner circumferential surface of the contact section of the crimping sleeve.

[0008] Beneficial Effects: This utility model modifies the elements of the existing connector shielding cover by making the spring claws at the tail end of the shielding cover extend outwards, facing away from the head of the shielding cover. A set of spring claws can be connected to a crimping sleeve. The contact section of the crimping sleeve is fitted onto the same set of spring claws. Each spring claw in the same set is located inside the crimping sleeve and abuts against the inner circumferential surface of its contact section. This allows the cable shielding layer to conduct through the crimping sleeve and the shielding cover. This structure allows the spring claws of the shielding cover to be covered by the crimping sleeve, blocking the gaps between the spring claws. This allows the crimping sleeve to wrap around the same set of spring claws, improving the tightness of the shielding enclosure and reducing the risk of electromagnetic leakage due to gaps at the spring claws affecting the shielding performance. Simultaneously, this outward-extending structure, with the spring claw abutting part facing away from the center, creates a larger space within the area enclosed by the same set of spring claws. When the connector contacts are inserted into the inner shell of the shielding cover, they are less likely to come into contact with the spring claws, preventing snagging and facilitating operation.

[0009] The technical solution for the crimp sleeve of the connector of this utility model is as follows:

[0010] A crimp sleeve for a connector has a contact section and a crimping section for crimping a cable shield. The contact section is used to fit onto a set of spring claws that extend outward from the head of the shield at the tail end of the shield. The inner circumferential surface of the contact section has a portion for abutting against the spring claws.

[0011] Furthermore, the inner diameter of the contact section of the crimping sleeve is smaller than the inner diameter of the crimping section.

[0012] Beneficial Effects: This utility model modifies the elements of the crimp sleeve in existing connector technology. When in use, the crimp sleeve is fitted onto the same group of outwardly extending spring claws at the tail end of the shielding cover. Each spring claw in the same group is located inside the crimp sleeve and abuts against the inner circumferential surface of its contact section. This allows the cable's shielding layer to conduct through the crimp sleeve to the shielding cover. This structure allows the crimp sleeve to cover the spring claws of the shielding cover, blocking the gaps between the spring claws. This allows the crimp sleeve to enclose the same group of spring claws, improving the tightness of the shielding enclosure and reducing the risk of electromagnetic leakage due to gaps at the spring claws affecting shielding performance. Simultaneously, this outward-extending structure, with the spring claw abutting part facing away from the center, creates a larger space within the area enclosed by the same group of spring claws. When the connector contacts are inserted into the inner shell of the shielding cover, they are less likely to contact the spring claws, preventing snagging and facilitating operation.

[0013] The technical solution of the connector of this utility model is as follows:

[0014] A connector includes an inner housing, a contact element installed in the inner housing, a shielding cover fitted outside the inner housing, and a crimping sleeve for crimping a cable shielding layer and contacting the shielding cover. The tail end of the shielding cover is provided with at least one set of spring claws extending outward from the head of the shielding cover. The crimping sleeve has a contact section and a crimping section for crimping the cable shielding layer. The contact section is fitted onto each of the spring claws in the same set. The side of the spring claw facing away from the center of the area enclosed by the same set of spring claws has a portion that abuts against the inner circumferential surface of the contact section of the crimping sleeve.

[0015] Furthermore, the inner diameter of the contact section of the crimping sleeve is smaller than the inner diameter of the crimping section.

[0016] Furthermore, the inner housing has a support cylinder near the tail end of the spring claw, with one set of spring claws corresponding to one support cylinder. The shield is fitted onto the inner housing and the support cylinder is inserted into the area enclosed by each spring claw in the same set. The spring claw has a part for abutting against the support cylinder so that the support cylinder supports the spring claw when the crimping sleeve squeezes the spring claw.

[0017] Furthermore, the support cylinder is provided with grooves corresponding to each of the spring claws in the same group, the spring claws are located in the grooves, and the part of the support cylinder between two adjacent grooves forms an axial rib. The inner circumferential surface of the contact section of the crimping sleeve is interference-fitted with the axial rib; or the contact section of the crimping sleeve is sleeved on the support cylinder, and the outer wall of the support cylinder is provided with a boss that is interference-fitted with the contact section of the crimping sleeve.

[0018] Furthermore, the axial rib or boss is provided with a guide slope or guide arc surface to guide the contact section of the crimping sleeve as it is fitted onto the support cylinder.

[0019] Furthermore, the spring claw extends outward from the tail end face of the shield, and the pressing sleeve abuts against the tail end face of the shield.

[0020] Furthermore, the projection of the gap between each spring claw in the connector head-to-tail direction is located within the area enclosed by the projection of the outer peripheral surface of the contact segment in the connector head-to-tail direction.

[0021] Furthermore, the connector is a dual-core connector that connects two cables. Two contacts are installed in the inner housing of the connector. The contacts are connected to the core wires of the cables. The shielding cover is fitted on the inner housing. The shielding cover has two sets of spring claws. The same set of spring claws is connected to the shielding layer of the corresponding cable through the corresponding crimp sleeve.

[0022] Beneficial effects: This utility model modifies the elements of existing connectors by making the spring claws at the tail end of the shielding cover extend outwards, facing away from the head of the shielding cover. The contact section of the crimping sleeve is fitted onto the same set of spring claws, with one set of spring claws corresponding to one crimping sleeve. Each spring claw in the same set is located inside the crimping sleeve and abuts against the inner circumferential surface of its contact section. This allows the cable shielding layer to conduct through the crimping sleeve and the shielding cover. Since the spring claws of the shielding cover are covered by the crimping sleeve, the gaps between the spring claws are blocked by the crimping sleeve. This allows the crimping sleeve to wrap around the same set of spring claws, which helps to improve the tightness of the shielding wrap and prevents electromagnetic leakage at the spring claw gaps from affecting the shielding performance. At the same time, this outward-extending structure, with the spring claw abutting part facing away from the center, can form a larger space in the area enclosed by the same set of spring claws. When the connector contacts are installed in the inner shell of the shielding cover, they are less likely to come into contact with the spring claws, and there will be no hooking, making operation convenient. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the connector structure in the background art;

[0024] Figure 2 for Figure 1 Exploded view of the components of the connector;

[0025] Figure 3 for Figure 1 A schematic diagram of the rear side of the connector;

[0026] Figure 4 This is a cross-sectional structural schematic diagram of an embodiment of the connector of this utility model;

[0027] Figure 5 for Figure 4 Exploded view of the components of the connector;

[0028] Figure 6 for Figure 4 Schematic diagram of the structure of the shielding cover;

[0029] Figure 7 for Figure 4Schematic diagram of the inner shell structure;

[0030] Figure 8 for Figure 4 A schematic diagram of the rear side of the connector.

[0031] In the diagram: 1. Contact element; 2. Inner shell; 21. Support cylinder; 22. Axial rib; 23. Groove; 3. Shielding cover; 31. Spring claw; 32. Gap; 33. Cover body; 4. Press sleeve; 41. Contact section; 42. Press wire section. Detailed Implementation

[0032] The basic concept of the connector of this utility model is to set the spring claws of the shielding cover as an outward-extending structure, and use a crimping sleeve to cover each spring claw, thereby blocking the gaps between the spring claws, which helps to prevent electromagnetic interference from leaking from the gaps and improves the shielding performance.

[0033] The technical solution of this utility model will be described in detail below with reference to specific embodiments.

[0034] Embodiments of the connector of this utility model:

[0035] like Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, the connector includes a contact 1, an inner housing 2, a shielding cover 3, a crimping sleeve 4, and an outer shell (not shown in the diagram). The connector's head and tail directions are consistent with the insertion direction; the head is the insertion end, and the tail is connected to the cable (not shown in the diagram). The contact 1 has a insertion structure at its head for mating with the adapter connector and a crimping structure at its tail for crimping the cable core wires. The crimping sleeve 4 is used to crimp the cable's shielding layer. The contact 1 is installed inside the inner housing 2. The shielding cover 3 is a cylindrical structure that fits outside the inner housing 2. The crimping sleeve 4 contacts the shielding cover 3, and the cable's shielding layer is conductively connected to the shielding cover 3 through the crimping sleeve 4.

[0036] After the cable is wired, the cable core is crimped and fixed to the contact 1, and the cable shield is crimped and fixed to the crimp sleeve 4. The inner housing 2 has mounting holes for the contact 1, and the cable core extends into the inner housing 2. The contact 1, crimp sleeve 4, cable, inner housing 2, and shield 3 are all installed in the outer housing. A locking cap is connected to the tail of the outer housing. A sealing body is also fitted onto the outer sheath of the cable at the tail of the outer housing. The sealing body is located on the side of the crimp sleeve 4 away from the connector head. The locking cap can press against the sealing body, thereby generating a pushing force on the crimp sleeve 4 to prevent it from slipping and maintain its position. The crimp sleeve 4 contacts the tail of the shield 3. After the connector is inserted into the adapter connector, the head of the shield 3 contacts and conducts through the shielding structure of the adapter connector. The shield 3 can act as a protective enclosure around the contact 1.

[0037] The shielding cover 3 includes a cylindrical cover body 33 and at least one set of spring claws 31 extending outward from the head of the shielding cover 3 at the tail end of the shielding cover 3. Multiple spring claws 31 are in the same set, and the spring claws 31 in the same set are spaced apart along the circumferential direction, with a gap 32 between adjacent spring claws 31. Each spring claw 31 in the same set is located on the periphery of the corresponding cable. The crimping sleeve 4 has a crimping section 42 for crimping the cable shielding layer and a contact section 41 for fitting onto the spring claws 31 in the same set. Each spring claw 31 in the same set is located inside the crimping sleeve 4 and abuts against the inner circumferential surface of its contact section 41. A set of spring claws 31 are connected to a crimp sleeve 4. The cable shielding layer is connected to the shielding cover 3 through the crimp sleeve 4. Since the spring claws 31 of the shielding cover 3 are covered by the crimp sleeve 4, the gap 32 between the spring claws 31 is blocked by the crimp sleeve 4. Thus, the crimp sleeve 4 can be used to wrap the same set of spring claws 31, which helps to improve the tightness of the shielding wrap and makes it less likely to affect the shielding performance due to electromagnetic leakage at the gap 32 at the spring claws 31.

[0038] The shield body 33 of the shield cover 3 is adapted to fit on the inner shell 2. The shield body 33 has a tail sidewall, and the outer wall surface of the tail sidewall forms the tail end face of the shield cover 3. The spring claw 31 extends outward based on the tail end face of the shield cover 3, extending outside the inner cavity of the shield body 33. The spring claw 31 is integrally connected to the shield body 33. By bending, the end of the spring claw 31 is bent, and the bent part abuts against the inner circumferential surface of the crimping sleeve 4. In this embodiment, the crimping sleeve is circular, and correspondingly, the spring claws in the same group are evenly distributed along the circumferential direction. In other embodiments, the crimping sleeve can be set as square or polygonal. Correspondingly, the spring claws in the same group are not limited to the circumferential direction. The position of each spring claw in the same group can be adapted and adjusted according to the shape of the crimping sleeve, as long as the spring claws in the same group are distributed around the center line of the crimping sleeve so that the spring claws contact the crimping sleeve.

[0039] The inner housing 2 of the connector has a support cylinder 21 at its tail end. The support cylinder 21 is a cylindrical structure, and a set of spring claws 31 corresponds to one support cylinder 21. Each spring claw 31 in the same set surrounds the corresponding support cylinder 21. The support cylinder 21 protrudes from the tail end face of the inner housing 2 and is located within the area enclosed by the spring claws 31 in the same set. The inner wall of the tail side wall of the shielding cover 3 is attached to the tail end face of the inner housing 2. The tail side wall of the shielding cover 3 is bent to form a spring claw 31, thus forming a channel for the support cylinder 21 to pass through. The spring claw 31 has a portion for abutting against the support cylinder 21 so that the support cylinder 21 supports the spring claw 31 when the crimping sleeve 4 presses the spring claw 31. The end of the spring claw 31 is bent inward so that its end edge can abut against the outer wall of the support cylinder 21, so that the spring claw 31 is subjected to uniform force when it is deformed inward by the crimping sleeve 4. In other embodiments, the support cylinder may be omitted, the inner side of the spring claw may be unsupported, and the crimping sleeve may be directly fitted over the spring claws of the corresponding group to form contact.

[0040] The side of the spring claw 31 facing away from the center of the area enclosed by the same group of spring claws forms a part that abuts against the inner circumferential surface of the contact section of the crimping sleeve 4 at the curved end. That is, the part of the spring claw 31 furthest from the center of the area enclosed by the same group of spring claws. The spring claw 31 has an outward structure, and the abutting part of the spring claw 31 faces away from the center of the area enclosed by the same group of spring claws. When the same group of spring claws is not subjected to the squeezing force of the crimping sleeve 4, it is outwardly extended, which can form a large space for the area enclosed by the same group of spring claws. With the support cylinder 21 blocking, when the contact 1 of the connector is installed in the inner shell 2 inside the shielding cover 3, the contact 1 passes through the support cylinder 21 without contacting the spring claw 31, and there is no hooking or scratching, so the operation is smooth.

[0041] The support cylinder 21 has grooves 23 corresponding to each of the spring claws 31 in the same group. The spring claws 31 are located in the grooves 23, which extend to the tail side. The portion of the support cylinder 21 between two adjacent grooves 23 forms an axial rib 22, that is, the groove 23 is between two adjacent axial ribs 22. The contact section 41 of the pressing sleeve 4 is press-fitted with the axial rib 22. The grooves 23 ensure that the spring claws 31 have room to deform after being squeezed by the pressing sleeve 4. After the contact section 41 of the pressing sleeve 4 is fitted onto the support cylinder 21, a tight fit is formed by the axial ribs 22 to ensure a stable installation. In other embodiments, the grooves and axial ribs may not be provided, and the outer wall surface of the support cylinder may be a regular circumferential surface, with the pressing sleeve only pressing against each spring claw. In other embodiments, a short axial boss may be provided on the outer wall of the support cylinder at the position between two adjacent spring claws.

[0042] The axial length of the support cylinder 21 is greater than the overhang length of the spring claw 31, which provides reliable support for the spring claw 31 and facilitates a stable fit between the contact section 41 and the support cylinder 21. The opening of the support cylinder 21 faces away from the head of the inner housing 2. The opening of the support cylinder 21 is for the core wire of the cable to pass through. The axial rib 22 is provided with a guide slope or guide arc surface to guide the contact section 41 of the crimping sleeve 4 when it is fitted onto the support cylinder 21. The axial rib 22 is flush with the opening. The guide slope or guide arc surface at the opening facilitates the forced installation of the contact section 41 of the crimping sleeve 4 onto the support cylinder 21 and each spring claw 31.

[0043] The crimp sleeve 4 abuts against the tail end face of the shield 3. After the connector is assembled, the end face of the crimp sleeve 4 located at the contact section 41 directly abuts against the tail end face of the shield 3. The abutment can be maintained by the tail locking cap, which helps the crimp sleeve 4 to fully cover the gap 32 between the spring claws 31. In other embodiments, there may also be a small gap between the end face of the crimp sleeve and the tail end face of the shield.

[0044] The projection of the gap 32 between each spring claw 31 in the connector head-to-tail direction is located within the area enclosed by the projection of the outer peripheral surface of the contact section 41 in the connector head-to-tail direction. The root of the spring claw 31 is also covered by the crimp sleeve 4. After the crimp sleeve 4 abuts against the shielding cover 3, the gap 32 between the spring claws 31 can be completely covered by the crimp sleeve 4, and no electromagnetic leakage will occur. In other embodiments, if the gap at the root of the spring claw is large, a small part may be exposed if permissible, but compared with the existing inwardly bent spring claw form, large-scale leakage can be avoided.

[0045] Both the inner housing 2 and the outer housing are insulators. To ensure sufficient creepage distance and clearance, it is necessary to maintain a certain distance between one metal component and another, such as the distance between contact 1 and crimp sleeve 4. Figure 4 The critical dimension 'a' in the shielding cover 3 requires a certain distance, which affects the length 'A' of the shielding cover 3. Since the spring claw 31 extends outward and the support cylinder 21 of the inner shell 2 extends into the crimping sleeve 4, the support cylinder 21 can block the contact section 41. Only the exposed part of the inner wall of the crimping section 42 needs to maintain a distance 'a' from the contact element 1. This can greatly shorten the length 'A' of the shielding cover 3 while keeping the dimension 'a' unchanged, thus increasing cost advantages.

[0046] The inner diameter of the contact section 41 of the crimp sleeve 4 is smaller than the inner diameter of the crimping section 42. The wall thickness of the crimp sleeve 4 is the same everywhere. The outer diameter of the contact section 41 is larger than the outer diameter of the crimping section 42, so that the size of the crimping section 42 can be adapted to be crimped and fixed on the shielding layer of the cable, ensuring reliable contact with the shielding layer.

[0047] This connector is a dual-core connector for connecting two cables. Two contacts 1 are installed in the inner housing 2 of the connector. The contacts 1 are connected to the core wires of the cables. A shield 3 is fitted onto the inner housing 2 to cover the two contacts 1. Two sets of spring claws 31 are provided on the shield 3, spaced apart. Each set of spring claws 31 contacts a crimp sleeve 4 fixed on a cable. The same set of spring claws 31 is connected to the shielding layer of the corresponding cable through the corresponding crimp sleeve 4. In other embodiments, the connector can also be a single-core connector with only one contact; correspondingly, there is only one set of spring claws.

[0048] This connector, by bending the spring claws 31 of the shielding cover 3 outwards, achieves a tighter contact between the shielding cover 3 and the crimping sleeve 4, resulting in a more secure shielding enclosure without gaps 32, thus ensuring better electromagnetic compatibility performance. Combined with... Figure 8 As shown, the left set of spring claws 31 is not engaged with the crimping sleeve 4, while the right set of spring claws 31 is engaged with the crimping sleeve 4. This installation method ensures that the crimping sleeve 4 and the shielding cover 3 are completely without gaps, thus ensuring better EMC performance.

[0049] An embodiment of the connector shielding cover of this utility model:

[0050] The shielding cover of the connector in this embodiment has the same structure as the shielding cover described in the above-described connector embodiments, and will not be repeated here.

[0051] An embodiment of the crimp sleeve of the connector of this utility model:

[0052] The crimp sleeve of the connector in this embodiment is the same as the crimp sleeve structure described in the above-described connector embodiments, and will not be repeated here.

[0053] Finally, it should be noted that the above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A shielding cover for a connector, characterized in that, The tail end of the shield (3) is provided with at least one set of spring claws (31) that extend outward from the head of the shield. Each spring claw in the same set is fitted onto the contact section (41) of the crimping sleeve (4). The side of the spring claw (31) facing away from the center of the area enclosed by the same set of spring claws is provided with a part for abutting against the inner circumferential surface of the contact section (41) of the crimping sleeve (4).

2. A crimp sleeve for a connector, characterized in that, The crimping sleeve (4) has a contact section (41) and a crimping section (42) for crimping the cable shielding layer. The contact section (41) is used to fit onto each of the spring claws (31) that are suspended outward from the head of the shielding cover (3) at the same set of tail ends. The inner circumferential surface of the contact section (41) is provided with a part for abutting against the spring claws (31).

3. The crimp sleeve of the connector according to claim 2, characterized in that, The inner diameter of the contact section (41) of the crimp sleeve (4) is smaller than the inner diameter of the crimping section (42).

4. A connector, characterized in that, It includes an inner housing (2), a contact (1) installed in the inner housing (2), a shield (3) sleeved outside the inner housing (2), and a crimping sleeve (4) for crimping the cable shielding layer and contacting the shield (3), wherein the shield (3) is the shield of the connector described in claim 1 above, and the crimping sleeve (4) is the crimping sleeve of the connector described in claim 2 or 3 above.

5. The connector according to claim 4, characterized in that, The inner shell (2) has a support cylinder (21) at the tail end near the spring claw (31). A set of spring claws (31) corresponds to a support cylinder (21). The shield (3) is fitted on the inner shell (2) and the support cylinder (21) is inserted into the area enclosed by each spring claw (31) in the same set. The spring claw (31) has a part for abutting against the support cylinder (21) so that the support cylinder (21) supports the spring claw (31) when the crimping sleeve (4) squeezes the spring claw (31).

6. The connector according to claim 5, characterized in that, The support cylinder (21) is provided with grooves (23) corresponding to each of the spring claws (31) in the same group. The spring claws (31) are located in the grooves (23). The part of the support cylinder (21) located between two adjacent grooves (23) forms an axial rib (22). The inner circumferential surface of the contact section (41) of the crimping sleeve (4) is press-fitted with the axial rib (22); or the contact section (41) of the crimping sleeve (4) is sleeved on the support cylinder (21). The outer wall of the support cylinder (21) is provided with a boss that is press-fitted with the contact section (41) of the crimping sleeve (4).

7. The connector according to claim 6, characterized in that, axial The protruding rib (22) or the protruding platform is provided with a guide slope or guide arc surface to guide the contact section (41) of the crimp sleeve (4) to be fitted onto the support cylinder (21).

8. The connector according to any one of claims 4-7, characterized in that, The spring claw (31) extends outward based on the tail end face of the shield (3), and the pressing sleeve (4) abuts against the tail end face of the shield (3).

9. The connector according to claim 8, characterized in that, The projection of the gap (32) between each spring claw (31) in the connector head-to-tail direction is located in the area enclosed by the projection of the outer peripheral surface of the contact segment (41) in the connector head-to-tail direction.

10. The connector according to any one of claims 4-7, characterized in that, The connector is a dual-core connector that connects two cables. Two contacts (1) are installed in the inner shell (2) of the connector. The contacts (1) are connected to the core wires of the cables. The shield (3) is fitted on the inner shell (2). The spring claws (31) on the shield (3) are provided in two sets. The spring claws (31) of the same set are connected to the shielding layer of the corresponding cable through the corresponding crimp sleeve (4).

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