A shielding ring, a shielding assembly, and a high-voltage connector

Abstract

This utility model relates to the field of shielding structures, specifically to a shielding ring, a shielding assembly, and a high-voltage connector. This utility model addresses the problem of high contact resistance between existing shielding rings and connector housings after installation. The shielding ring includes a main open ring for mounting on the housing plug end of the high-voltage connector. The main open ring has a radially outwardly extending contact portion for abutting against the inner wall of the housing. The main open ring also has a clamping member mounting section for an elastic clamping member to tighten and secure the main open ring to the housing plug end. Installing the elastic clamping member on the clamping member mounting section causes the main open ring to contract, thus ensuring a large contact area between the shielding ring and the connector housing, significantly reducing the contact resistance between them.

Description

Technical Field

[0001] This utility model relates to the field of shielding structures, specifically to a shielding ring, a shielding assembly, and a high-voltage connector. Background Technology

[0002] High-voltage connectors are crucial components in new energy vehicles. Inside the vehicle, they need to be inserted into the equipment housing. A shielding ring is installed on the cylindrical insertion end of the high-voltage connector, which abuts against the inner wall of the equipment housing to ensure shielded contact. For example... Figure 1 As shown, the existing high-voltage connector has a cylindrical housing plug-in end with outwardly protruding locking protrusions on its cylindrical wall. The shielding ring 7 includes a ring body for fitting onto the housing plug-in end, with outwardly extending abutment springs 71 stamped on the ring body. The abutment springs 71 achieve contact with the equipment housing. The ring body also has a locking window for engaging with the locking protrusions. The axial positioning of the shielding ring 7 on the high-voltage connector is achieved by a ring platform 6 on the housing plug-in end and a snap-on cover 5 fastened to the front side of the housing plug-in end. The snap-on cover 5 includes an annular stop end face for axially stopping the shielding ring. The inner side of the annular stop end face has a rearwardly extending cylindrical portion with a snap-on 51. After installation, the snap-on 51 is fastened into the locking protrusions on the cylindrical wall to install the snap-on cover 5. However, the complex structure of each component increases the complexity of the mold, raises costs, and affects production efficiency. Meanwhile, since the shielding ring needs to be fitted onto the housing connector, the inner diameter of the shielding ring must be no less than the outer diameter of the housing connector. After the shielding ring is installed, there is a lack of positive pressure between it and the connector housing, which cannot guarantee the contact area between the two and can easily lead to a large contact resistance between them. Utility Model Content

[0003] The purpose of this invention is to provide a shielding ring to solve the problem of high contact resistance between the existing shielding ring and the connector housing after installation; the purpose of this invention is also to provide a shielding assembly to solve the problem of high contact resistance between the existing shielding ring and the connector housing after installation; the purpose of this invention is also to provide a high-voltage connector to solve the problem of high contact resistance between the existing shielding ring and the connector housing after installation.

[0004] To solve the above-mentioned technical problems, the present invention provides a shielding ring including a main open ring for fitting onto the housing plug end of a high-voltage connector. The main open ring is provided with a contact portion extending radially outward for abutting against the inner wall of the equipment housing. The main open ring has a fastening element mounting section for a flexible fastening element to fasten thereon so as to cause the main open ring to contract and hug tightly against the housing plug end.

[0005] Furthermore, the contact portion includes spring pieces arranged circumferentially along the opening ring of the main body.

[0006] Furthermore, the spring extends rearward.

[0007] Furthermore, the spring is a sheet metal bent piece that is integrally connected to the front end of the main body open ring and extends backward.

[0008] Furthermore, an annular space is formed between the spring and the main body open ring, and the ring body of the main body open ring at the annular space constitutes the fastening component mounting section.

[0009] This utility model proposes a pioneering technical solution to address the aforementioned technical problems. The shielding ring includes a main open ring for mounting on the housing plug end of a high-voltage connector, and a radially outwardly extending contact portion on the main open ring. A clamping member mounting section is provided on the main open ring for an elastic clamping member to be fastened thereon. After the elastic clamping member is installed on the clamping member mounting section, it causes the main open ring to contract and tightly fit against the housing plug end. In this way, the contact area between the shielding ring and the connector housing is guaranteed, and the contact resistance between the two can be significantly reduced.

[0010] Another aspect of this utility model provides a shielding assembly, which includes a shielding ring and an elastic clamping member. The shielding ring includes a main open ring for fitting onto the housing plug end of a high-voltage connector. The main open ring is provided with a radially outwardly extending contact portion for abutting against the inner wall of the equipment housing. The main open ring has a clamping member mounting section for the elastic clamping member to be clamped thereon to cause the main open ring to contract and tightly fit against the housing plug end. The elastic clamping member is installed at the clamping member mounting section of the main open ring to cause the main open ring to contract and tightly fit against the housing plug end.

[0011] Furthermore, the contact portion includes spring pieces arranged circumferentially along the opening ring of the main body.

[0012] Furthermore, the spring extends rearward.

[0013] Furthermore, the spring is a sheet metal bent piece that is integrally connected to the front end of the main body open ring and extends backward.

[0014] Furthermore, an annular space is formed between the spring and the main body open ring, and the ring body of the main body open ring at the annular space constitutes the fastening component mounting section.

[0015] Furthermore, the elastic clamping member is an elastic open ring whose diameter is smaller than that of the main open ring in its natural state.

[0016] This invention proposes a pioneering technical solution to address the aforementioned technical problems. The shielding ring includes a main open ring for mounting on the housing plug end of a high-voltage connector, and a radially outwardly extending contact portion on the main open ring. An elastic clamping member is installed on the main open ring to cause it to contract and tightly fit against the housing plug end. This ensures the contact area between the shielding ring and the connector housing, significantly reducing the contact resistance between them.

[0017] Another aspect of this utility model provides a high-voltage connector, which includes a connector housing. A shielding assembly is fitted onto the housing plug-in end of the connector housing. The shielding assembly includes a shielding ring and an elastic clamping member. The shielding ring includes a main open ring for fitting onto the housing plug-in end of the high-voltage connector. The main open ring is provided with a radially outwardly extending contact portion for abutting against the inner wall of the equipment housing. The main open ring has a clamping member mounting section for the elastic clamping member to clamp onto it, so as to cause the main open ring to contract and hug tightly against the housing plug-in end. The elastic clamping member is installed at the clamping member mounting section of the main open ring to cause the main open ring to contract and hug tightly against the housing plug-in end.

[0018] Furthermore, the contact portion includes spring pieces arranged circumferentially along the opening ring of the main body.

[0019] Furthermore, the spring extends rearward.

[0020] Furthermore, the spring is a sheet metal bent piece that is integrally connected to the front end of the main body open ring and extends backward.

[0021] Furthermore, an annular space is formed between the spring and the main body open ring, and the ring body of the main body open ring at the annular space constitutes the fastening component mounting section.

[0022] Furthermore, the elastic clamping member is an elastic open ring whose diameter is smaller than that of the main open ring in its natural state.

[0023] Furthermore, the housing plug-in end is provided with an annular groove for installing the shielding component. When the shielding component expands radially beyond the front groove edge of the annular groove and contracts radially to be installed in the annular groove, the two groove walls of the annular groove provide axial positioning for the shielding component.

[0024] This invention proposes a pioneering technical solution to address the aforementioned technical problems. The shielding ring includes a main open ring for mounting on the housing plug end of a high-voltage connector, and a radially outwardly extending contact portion on the main open ring. An elastic clamping member is installed on the main open ring to cause it to contract and tightly fit against the housing plug end. This ensures the contact area between the shielding ring and the connector housing, significantly reducing the contact resistance between them. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a shielding ring installed on a high-voltage connector, based on existing technology.

[0026] Figure 2 This is a schematic diagram of the structure of a shielding ring according to the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of an elastic open ring;

[0028] Figure 4 This is an exploded structural diagram of a high-voltage connector according to the present invention;

[0029] Figure 5 This is a schematic diagram illustrating the assembly process of mounting the shielding assembly onto the high-voltage connector.

[0030] Figure 6 This is a schematic diagram of the structure of a high-voltage connector according to the present invention;

[0031] Figure 7 for Figure 6 Sectional view of plane AA.

[0032] In the diagram: 1. Connector housing; 11. Ring groove; 12. Bending connecting arm; 121. Connecting hole; 2. Shielding ring; 21. Spring piece; 211. Abutting protrusion; 22. Main body opening ring; 3. Elastic opening ring; 4. Conical cylinder; 5. Cover; 51. Snap fastener; 6. Ring platform; 7. Shielding ring 2; 71. Abutting spring piece 21; 8. Snap protrusion. Detailed Implementation

[0033] This invention proposes a pioneering technical solution to address the aforementioned technical problems. The core concept of this invention is as follows: the shielding ring includes a main open ring for mounting on the housing plug-in end of a high-voltage connector, and a radially outwardly extending contact portion on the main open ring. An elastic clamping member is installed on the main open ring to cause it to contract and tightly fit against the housing plug-in end. This ensures the contact area between the shielding ring and the connector housing, significantly reducing the contact resistance between them.

[0034] Based on the above concept, the present invention provides a high-voltage connector including a connector housing 1. The connector housing has a bent connecting arm with a connecting hole for a bolt to pass through and connect to a device housing. The housing insertion end of the connector housing 1 is cylindrical and fitted with a shielding assembly. The shielding assembly includes a shielding ring 2 and an elastic clamping member. The shielding ring 2 includes a main open ring 22 for fitting onto the housing insertion end of the high-voltage connector. The main open ring 22 has a radially outwardly extending contact portion for abutting against the inner wall of the device housing. The main open ring 22 has a clamping member mounting section for the elastic clamping member to be clamped thereon. The elastic clamping member is installed at the clamping member mounting section of the main open ring 22 to cause the main open ring 22 to contract and tightly fit against the housing insertion end. This ensures the contact area between the shielding ring 2 and the connector housing 1, significantly reducing the contact resistance between them.

[0035] like Figure 2 As shown, the elastic contact portion includes spring pieces 21 arranged circumferentially along the annular fitting portion and extending rearward. The spring pieces 21 are sheet metal bent pieces integrally connected to the front end of the main body open ring 22 and extending backward. The spring pieces 21 are also provided with abutment protrusions 211 to ensure reliable contact with the equipment housing. The spring pieces 21 themselves have a simple structure and low manufacturing cost. The sheet metal bent pieces 21 ensure their own elasticity and the reliability of their contact with the equipment housing. The axial space occupied by the spring pieces 21 when extending rearward is small, ensuring that there is no jamming when they are inserted into the equipment housing.

[0036] An annular space is formed between the spring piece 21 and the main body open ring 22, and the annular body of the main body open ring 22 at the annular space constitutes the fastening member mounting section. In this way, it is not necessary to provide an additional extension section on the main body open ring 22 for the installation of the elastic fastening member, thus reducing the axial dimension of the shielding ring 2.

[0037] The elastic clamping member is as follows: Figure 3 The elastic open ring 3 shown is smaller in diameter than the open ring diameter in its natural state. Simultaneously, the diameter of the elastic open ring 3 in its natural state is also smaller than the diameter of the housing insertion end to ensure a tightening effect on the main open ring. The elastic open ring 3 has a simple structure and can reliably cause the main open ring 22 to contract after installation. Figure 7 The diagram shows the structure of the shielding assembly installed on the connector housing 1. At this time, there is a certain gap between the end of the spring piece 21 of the shielding ring 2 of the shielding assembly and the elastic open ring 3. In this way, the spring piece 21 can be guaranteed to have a certain elasticity so as to reliably contact the equipment housing.

[0038] like Figures 4-7As shown, the connector housing 1 has an annular groove 11 on its housing insertion end for mounting a shielding assembly. When the shielding assembly radially expands beyond the front edge of the annular groove 11 and radially retracts to be installed in the annular groove 11, the two groove walls of the annular groove 11 axially position the shielding assembly. After the shielding assembly is installed, the spring piece 21 protrudes radially from the edge of the annular groove to ensure reliable contact with the equipment housing. Figure 5 As shown, after the elastic open ring 3 and the shielding ring 2 are assembled, their respective opening structures coincide in the circumferential direction to ensure that the entire shielding assembly can easily expand and contract radially. During installation, a cone 4 is used. The diameter of the large end of the cone 4 is not less than the diameter of the front groove edge of the annular groove 11. The shielding assembly is inserted from the small end of the cone 4, and after passing the large end, the shielding assembly expands radially to easily pass over the front groove edge of the annular groove 11 and is secured in the annular groove 11 at the connector housing for positioning. The connector housing 1 uses the annular groove 11 on it to position the shielding assembly, eliminating the need for additional covers, reducing the number of parts, and solving the installation problem of the shielding assembly under space constraints.

[0039] Regarding the structure of the shielding ring and connector housing, this utility model also provides other embodiments. In another embodiment, the connector housing has the same structure as the connector housing in the prior art. The shielding component can be directly fitted onto the housing plug end and installed through the ring platform on the housing plug end and the front end cover. After the shielding component is installed, the elastic clamping member causes the main body opening ring to shrink and hug tightly to the housing plug end, thereby ensuring the contact area between the two to reduce the contact resistance.

[0040] Regarding the elastic clamping element, this utility model also provides other embodiments. In another embodiment, the elastic clamping element can be a ring-shaped helical spring, as long as it can cause the main body open ring to contract.

[0041] Regarding the contact portion, this utility model also provides other embodiments. In another embodiment, the contact portion is an abutting protrusion formed by radially outward stamping on the main body open ring, which only needs to ensure that it can reliably abut against the equipment housing.

[0042] This utility model also provides other embodiments regarding the spring sheet. In another embodiment, the spring sheet is a stamped spring sheet stamped out of the main body open ring.

[0043] Regarding the extension direction of the spring sheet, this utility model also provides other embodiments. In another embodiment, the spring sheet can also extend forward. In this case, a guide surface can be provided at the front end of the spring sheet to avoid jamming when it is inserted with the equipment housing.

[0044] Regarding the location of the fastening component mounting section, this utility model also provides other embodiments. In another embodiment, the contact portion can be located in the middle of the ring body of the main body open ring. In this case, the fastening component mounting section can be the ring body portion on the front side of the contact portion of the main body open ring, or it can be the ring body portion on the rear side of the contact portion of the main body open ring.

[0045] Another aspect of this utility model provides a shielding component. Since the shielding component is the same as the embodiment of the shielding component described above, it will not be described again here.

[0046] Another aspect of this utility model provides a shielding ring, which is the same as the shielding ring embodiment described above, so it will not be described again here.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A shielding ring, characterized in that: Includes a main open ring (22) for mounting on the housing plug end of a high-voltage connector. The main open ring (22) has a radially outwardly extending contact portion for abutting against the inner wall of the equipment housing. The main open ring (22) has a fastening member mounting section for a flexible fastening member to fasten thereon so that the main open ring (22) contracts and hugs the housing plug end tightly.

2. The shielding ring according to claim 1, characterized in that: The contact portion includes spring pieces (21) arranged circumferentially along the main body opening ring (22).

3. The shielding ring according to claim 2, characterized in that: The spring (21) extends rearward.

4. The shielding ring according to claim 3, characterized in that: The spring piece (21) is a sheet metal bending piece that is integrally connected to the front end of the main body opening ring (22) and extends backward.

5. The shielding ring according to claim 3 or 4, characterized in that: An annular space is formed between the spring piece (21) and the main body opening ring (22), and the ring body of the main body opening ring (22) at the annular space constitutes the fastening member mounting section.

6. A shielding component, characterized in that: It includes a shielding ring and an elastic clamping member. The shielding ring is the shielding ring (2) as described in any one of claims 1-5. The elastic clamping member is installed at the clamping member installation section of the main body open ring (22) to cause the main body open ring (22) to contract and fit tightly against the housing insertion end.

7. The shielding assembly according to claim 6, characterized in that: The elastic clamping element is an elastic open ring (3) whose diameter is smaller than that of the main open ring (22) in its natural state.

8. A high-voltage connector, characterized in that: The connector housing (1) is provided with a shielding assembly on the housing plug end of the connector housing (1). The shielding assembly includes a shielding ring (2) and an elastic clamping member. The shielding ring (2) is the shielding ring (2) as described in any one of claims 1-5. The elastic clamping member is installed at the clamping member installation section of the main body open ring (22) to cause the main body open ring (22) to contract and fit tightly against the housing plug end.

9. The high-voltage connector according to claim 8, characterized in that: The elastic clamping element is an elastic open ring (3) whose diameter is smaller than that of the open ring in its natural state.

10. The high-voltage connector according to claim 8 or 9, characterized in that: The housing plug-in end is provided with an annular groove (11) for installing the shielding component. When the shielding component expands radially across the front groove edge of the annular groove (11) and contracts radially to be installed in the annular groove (11), the two groove walls of the annular groove (11) provide axial positioning for the shielding component.

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