A high voltage connector shielding structure

Abstract

The present invention discloses a high-voltage connector shielding structure, including a connector housing, a first shielding cover, a first insulating shell, a second insulating shell, a second shielding cover, a shielding cover fixing ring and a cable, wherein the first insulating shell and the second insulating shell are fixedly connected into one body through a first connecting component, the first shielding cover is installed on the first insulating shell through a second connecting component, the second shielding cover is installed on the second insulating shell through a third connecting component, the head end of the cable is installed between the first insulating shell and the second insulating shell, the cable is provided with a shielding layer, the shielding layer of the cable is electrically connected to the first shielding cover and the second shielding cover respectively, the connector housing is provided with an installation groove, and the first shielding cover, the first insulating shell, the second insulating shell, the second shielding cover, the shielding cover fixing ring and the head end of the cable, which are combined into one body, are installed in the installation groove of the connector housing through a fourth connecting component. The present invention has a simple and novel structure, is easy to install, and has good overall shielding performance.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and more particularly to a high-voltage connector shielding structure. Background Art

[0002] Connectors are used between blocked or isolated parts of a circuit to transmit electricity or signals. In order to prevent the connector from being affected by external electromagnetic signals and to prevent the connector's own electromagnetic signals from being transmitted to the outside world, the connector needs to be shielded accordingly. The shielding structure of existing connectors is relatively complex, with many parts and components, and difficult to assemble, resulting in high R&D and production costs. At the same time, the shielding structure of existing connectors is relatively fragile and can easily fall out when subjected to force, resulting in shielding failure, and the overall shielding performance is weak. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned defects in the prior art and provide a high voltage connector shielding structure.

[0004] To achieve the above object, the present invention provides a high-voltage connector shielding structure, including a connector housing, a first shielding cover, a first insulating shell, a second insulating shell, a second shielding cover, a shielding cover fixing ring and a cable, wherein the first insulating shell and the second insulating shell are fixedly connected into one by a first connecting component, The first shielding cover is installed on the first insulating shell through the second connecting component, and the second shielding cover is installed on the second insulating shell through the third connecting component, so that the first shielding cover and the second shielding cover can cover the outside of the first insulating shell and the second insulating shell assembled into one to achieve shielding. The head end of the cable is installed between the first insulating shell and the second insulating shell. The cable is provided with a shielding layer, and the shielding layer of the cable is electrically connected to the first shielding cover and the second shielding cover respectively. The tail end of the shielding cover fixing ring is wrapped around the periphery of the cable, and the head end of the shielding cover fixing ring is wrapped around the periphery of the connection part between the shielding layer of the cable and the first shielding cover and the second shielding cover. The connector shell is provided with a mounting groove, and the first shielding cover, the first insulating shell, the second insulating shell, the second shielding cover, the shielding cover fixing ring and the head end of the cable assembled into one are installed in the mounting groove of the connector shell through the fourth connecting component. The first connecting component, the second connecting component, the third connecting component and the fourth connecting component are all snap-on structures.

[0005] As a preferred embodiment, the first connecting assembly includes a snap-in block and a snap-in hole. The snap-in blocks are provided in plurality and are arranged on both sides of the first insulating shell. The snap-in holes are provided in plurality and are arranged on both sides of the second insulating shell. The snap-in blocks are respectively clamped in their corresponding snap-in holes, thereby achieving a fixed connection between the first insulating shell and the second insulating shell.

[0006] As a preferred embodiment, a plurality of upwardly protruding guide blocks are provided on both sides of the second insulating shell, and a plurality of snap-in holes are respectively arranged on the corresponding guide blocks; a plurality of corresponding guide grooves are provided on both sides of the first insulating shell, and a plurality of snap-in blocks are respectively arranged in the corresponding guide grooves; a plurality of guide blocks are inserted into the corresponding guide grooves so that the plurality of snap-in blocks are respectively fitted and clamped in the corresponding snap-in holes, thereby realizing a fixed connection between the first insulating shell and the second insulating shell.

[0007] As a preferred embodiment, the second connecting component includes a first snap-in spring piece and a first snap-in groove, a plurality of the first snap-in spring pieces are provided and are arranged on both sides of the first shielding cover in an inclined manner from bottom to top, a plurality of the first snap-in grooves are provided and are arranged on both sides of the first insulating shell, and the free ends of the plurality of first snap-in spring pieces are respectively inserted into the interiors of their respective corresponding first snap-in grooves and are clamped together with the top surfaces of their respective corresponding first snap-in grooves, thereby realizing a fixed connection between the first shielding cover and the first insulating shell.

[0008] As a preferred embodiment, the third connecting component includes a second snap-in spring sheet and a second snap-in groove, a plurality of second snap-in spring sheets are provided and are arranged on both sides of the second shielding cover in an inclined manner from top to bottom, a plurality of second snap-in grooves are provided and are arranged on both sides of the second insulating shell, and the free ends of the plurality of second snap-in spring sheets are respectively inserted into the interiors of their respective corresponding second snap-in grooves and are clamped together with the bottom surfaces of their respective corresponding second snap-in grooves, thereby realizing a fixed connection between the second shielding cover and the second insulating shell.

[0009] As a preferred embodiment, the fourth connecting component includes a third snap-in spring piece, a third snap-in groove and a fourth snap-in spring piece. The third snap-in spring pieces are provided in plurality and are all arranged at the bottom of the second shielding cover in an outwardly inclined direction from the head end of the connector shell to the tail end. The third snap-in grooves are provided in plurality and are all arranged at the bottom of the inside of the connector shell. The free ends of the plurality of third snap-in spring pieces are inserted into the interior of the respective corresponding third snap-in grooves and are clamped with the inner walls of the respective corresponding third snap-in grooves. The fourth snap-in spring pieces are provided in plurality and are all arranged at the top of the first shielding cover in an outwardly inclined direction from the head end of the connector shell to the tail end. The free ends of the plurality of fourth snap-in spring pieces are clamped with the inner walls of the insertion grooves opened at the head end of the connector shell, thereby realizing the fixed connection between the first shielding cover, the first insulating shell, the second insulating shell, the second shielding cover and the head end of the cable combined into one and the connector shell.

[0010] As a preferred embodiment, the cable also includes a first insulating layer, a second insulating layer and a core, the second insulating layer is wrapped around the outer periphery of the core, the shielding layer is wrapped around the outer periphery of the second insulating layer, the first insulating layer is wrapped around the outer periphery of the shielding layer, and the connecting end of the shielding layer is continuously folded to form an annular installation space for accommodating the connecting end of the first shielding cover and the connecting end of the second shielding cover to achieve electrical connection.

[0011] As a preferred embodiment, the connecting end of the first shielding cover is provided with a first strip-shaped connecting portion, and the connecting end of the second shielding cover is provided with a second strip-shaped connecting portion. The first strip-shaped connecting portion and the second strip-shaped connecting portion are respectively bent into semicircular shapes with the cable as the axis and are combined and installed in the circular installation space of the shielding layer.

[0012] As a preferred embodiment, the head end of the connector shell is provided with an insertion groove for inserting the corresponding connector, the corresponding position of the head end of the first shielding cover is provided with a through hole, and the edge position of the through hole is provided with a plurality of connecting springs for electrically connecting with the shielding structure of the corresponding connector, and the plurality of connecting springs are arranged downward and inclined toward the center of the through hole.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention has a simple and novel structure and a reasonable design, reduces the number of parts, simplifies the assembly process, is easy to install, and effectively reduces the production cost. The parts are tightly and firmly connected and are not easy to separate, and the overall shielding performance is good.

[0015] 2. The present invention greatly reduces the process hours required for production and reduces production costs by setting the first connecting component, the second connecting component, the third connecting component and the fourth connecting component as snap-fit ​​structures. At the same time, it makes the connection between the components tighter and the components will not fall out no matter from which direction the force is applied.

[0016] 3. The present invention adopts the first strip connecting part and the second strip connecting part to be installed in the circular installation space to realize the electrical connection of the first shielding cover, the second shielding cover and the shielding layer of the cable, thereby increasing the contact area between the first shielding cover, the second shielding cover and the shielding layer of the cable, and effectively enhancing the overall shielding performance of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 is an exploded schematic diagram of a high-voltage connector shielding structure provided by an embodiment of the present invention;

[0019] Figure 2 is a cross-sectional view of a high-voltage connector shielding structure provided by an embodiment of the present invention;

[0020] Figure 3 yes Figure 1 A partial enlarged view of the middle A;

[0021] Figure 4 yes Figure 2 A partial enlarged view of point B in the middle;

[0022] Figure 5 yes Figure 2 A partial enlarged view of point C in the middle;

[0023] Figure 6 yes Figure 2 A partial enlarged view of point D in the middle;

[0024] Figure 7 yes Figure 2 A partial enlarged view of point E in the middle. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Please refer to Figure 1 An embodiment of the present invention provides a high-voltage connector shielding structure, including a connector housing 1, a first shielding cover 2, a first insulating shell 3, a second insulating shell 4, a second shielding cover 5, a shielding cover fixing ring 6 and a cable 7. The various components of this embodiment are described in detail below in conjunction with the accompanying drawings.

[0027] like Figures 1 to 7As shown, the first insulating shell 3 and the second insulating shell 4 are fixedly connected as one through the first connecting component. In this embodiment, the first connecting component includes a clamping block 1011 and a clamping hole 1012. The clamping blocks 1011 are provided with a plurality of and are arranged on both sides of the first insulating shell 3. The clamping holes 1012 are provided with a plurality of and are arranged on both sides of the second insulating shell 4. The plurality of clamping blocks 1011 are respectively clamped in the corresponding clamping holes 1012. Preferably, a plurality of guide blocks 41 protruding upwards can also be provided on both sides of the second insulating shell 4. A plurality of snap-in holes 1012 are respectively arranged on the corresponding guide blocks 41, and a plurality of corresponding guide grooves 31 are provided on both sides of the first insulating shell 3, and a plurality of snap-in blocks 1011 are respectively arranged in the corresponding guide grooves 31. During assembly, the plurality of snap-in blocks 1011 are respectively inserted into the corresponding guide grooves 31 from bottom to top so that the plurality of snap-in blocks 1011 are respectively fitted and clamped in the corresponding snap-in holes 1012, so that the first insulating shell 3 and the second insulating shell 4 can be firmly connected together, and the assembly is convenient and quick.

[0028] like Figures 1 to 7 As shown, the first shielding cover 2 is installed on the first insulating shell 3 through the second connecting component, and the second shielding cover 5 is installed on the second insulating shell 4 through the third connecting component, so that the first shielding cover 2 and the second shielding cover 5 can cover the outside of the first insulating shell 3 and the second insulating shell 4 assembled into one body to achieve shielding. In this embodiment, the second connecting component includes a first snap-on spring piece 1021 and a first snap-on groove 1022. The first snap-on spring piece 1021 is provided with a plurality of them and is arranged inwardly from bottom to top on both sides of the first shielding cover 2. The first snap-on groove 1022 is provided with a plurality of them and is arranged on both sides of the first insulating shell 3. The free ends of the plurality of first snap-on spring pieces 1021 are respectively inserted into the first snap-on grooves 1022 corresponding to each other. 022 and are clamped together with the top surfaces of the respective corresponding second clamping grooves 1032, so that the first shielding cover 2 can be firmly installed on the first insulating shell 3. The third connecting component includes a second clamping spring piece 1031 and a second clamping groove 1032. A plurality of second clamping spring pieces 1031 are provided and are arranged on both sides of the second shielding cover 5 from top to bottom and tilted inward. A plurality of second clamping grooves 1032 are provided and are arranged on both sides of the second insulating shell 4. The free ends of the plurality of second clamping spring pieces 1031 are respectively inserted into the interiors of the respective corresponding second clamping grooves 1032 and are clamped together with the bottom surfaces of the respective corresponding second clamping grooves 1032, so that the second shielding cover 5 can be firmly installed on the second insulating shell 4.

[0029] like Figures 1 to 7As shown, the first shielding cover 2, the first insulating shell 3, the second insulating shell 4, the second shielding cover 5, the shielding cover fixing ring 6 and the head end of the cable 7 are installed in the mounting groove 11 of the connector housing 1 through the fourth connecting component. In this embodiment, the fourth connecting component includes a third snap-in spring piece 1041, a third snap-in groove 1042 and a fourth snap-in spring piece 1043. The third snap-in spring piece 1041 is provided with a plurality of and is arranged outwardly from the head end of the connector housing 1 to the tail end at the bottom of the second shielding cover 5. The third snap-in groove 1042 is provided with a plurality of and is arranged at the bottom of the connector housing 1. The free ends are respectively inserted into the interior of their respective corresponding third clamping grooves 1042 and are clamped together with the inner walls of their respective corresponding third clamping grooves 1042. A plurality of fourth clamping springs 1043 are provided and are arranged on the top of the first shielding cover 2 in an outwardly inclined direction from the head end of the connector shell 1 to the tail end. The free ends of the plurality of fourth clamping springs 1043 are clamped together with the inner walls of the insertion grooves 12 opened at the head end of the connector shell 1, so that the head ends of the first shielding cover 2, the first insulating shell 3, the second insulating shell 4, the second shielding cover 5, the shielding cover fixing ring 6 and the cable 7 which are combined into one can be firmly installed in the installation groove 11 of the connector shell 1.

[0030] like Figures 1 to 7 As shown, the cable 7 includes a first insulating layer 71, a shielding layer 72, a second insulating layer 73 and a core 74, the second insulating layer 73 is wrapped around the outer periphery of the core 74, the shielding layer 72 is wrapped around the outer periphery of the second insulating layer 73, the first insulating layer 71 is wrapped around the outer periphery of the shielding layer 72, and the head end of the cable 7 is installed between the first insulating shell 3 and the second insulating shell 4, and the shielding layer 72 of the cable 7 is electrically connected to the connecting end of the first shielding cover 2 and the connecting end of the second shielding cover 5, respectively, which can improve the overall shielding performance of the connector.

[0031] As a further improvement of this embodiment, a first strip connecting portion 21 can be provided at the connecting end of the first shielding cover 2, and a second strip connecting portion 51 can be provided at the connecting end of the second shielding cover 5, and the connecting end of the shielding layer 72 of the cable 7 is folded backward and then continued to be folded forward so that the shielding layer 72 is stacked into three layers. At this time, a circle of annular installation space 721 is formed between the outermost layer and the middle layer. During assembly, the first strip connecting portion 21 and the second strip connecting portion 51 are respectively bent into semicircular rings, and combined into a circular ring matching the annular installation space 721, so that it can be installed in the annular installation space 721 of the shielding layer 72, which can increase the contact area between the shielding layer 72 of the cable 7 and the first shielding cover 2 and the second shielding cover 5, thereby improving the overall shielding performance.

[0032] In a specific implementation, the tail end of the shielding cover fixing ring 6 is wrapped around the periphery of the first insulating layer 71 of the cable 7, and the head end of the shielding cover fixing ring 6 is wrapped around the periphery of the annular installation space 721 of the shielding layer 72 of the cable 7. This enables the first strip-shaped connecting portion 21 of the first shielding cover 2 and the second strip-shaped connecting portion 51 of the second shielding cover 5 to be in closer contact with the inner wall of the annular installation space 721 of the cable 7, thereby reducing the possibility of disconnection.

[0033] like Figures 1 to 7 As shown, the head end of the connector housing 1 is provided with an insertion groove 12 for inserting the corresponding connector. In order to facilitate the establishment of an electrical connection with the shielding structure of the inserted connector, a through hole can be set at the corresponding position of the head end of the first shielding cover 2, and a plurality of connecting springs 22 are set at the edge of the through hole. The plurality of connecting springs 22 are all arranged downward and inclined toward the center of the through hole. When the corresponding connector is inserted, the connecting springs 22 can be pressed against its shielding structure to establish an electrical connection.

[0034] In summary, the present invention has a simple and novel structure, a reasonable design, reduces the number of parts, simplifies the assembly process, is easy to install, and effectively reduces the production cost. The parts are tightly and firmly connected and not easy to separate, and the overall shielding performance is good.

[0035] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A high voltage connector shielding structure, characterized in that: The invention comprises a connector housing (1), a first shielding cover (2), a first insulating shell (3), a second insulating shell (4), a second shielding cover (5), a shielding cover fixing ring (6) and a cable (7), wherein the first insulating shell (3) and the second insulating shell (4) are fixedly connected to form a whole through a first connecting component, the first shielding cover (2) is mounted on the first insulating shell (3) through a second connecting component, and the second shielding cover (5) is mounted on the second insulating shell (4) through a third connecting component, so that the first shielding cover (2) and the second shielding cover (5) can cover the outside of the first insulating shell (3) and the second insulating shell (4) assembled into one body to achieve shielding, the head end of the cable (7) is mounted between the first insulating shell (3) and the second insulating shell (4), the cable (7) is provided with a shielding layer (72), the shielding layer (72) of the cable (7) is electrically connected to the first shielding cover (2) and the second shielding cover (5), respectively, and the tail end of the shielding cover fixing ring (6) is electrically connected to the first shielding cover (2) and the second shielding cover (5), respectively. The first shielding cover (2), the second shielding cover (3), the second shielding cover (4), the second shielding cover (5), the shielding cover fixing ring (6), and the head end of the cable (7) are wrapped around the periphery of the cable (7); the head end of the shielding cover fixing ring (6) is wrapped around the periphery of the connection portion between the shielding layer (72) of the cable (7) and the first shielding cover (2) and the second shielding cover (5); the connector housing (1) is provided with a mounting groove (11); the first shielding cover (2), the first insulating shell (3), the second insulating shell (4), the second shielding cover (5), the shielding cover fixing ring (6), and the head end of the cable (7) are installed in the mounting groove (11) of the connector housing (1) through a fourth connecting component; the first connecting component, the second connecting component, the third connecting component, and the fourth connecting component are all snap-fit ​​structures; The fourth connecting component comprises a third snap-fit ​​spring sheet (1041), a third snap-fit ​​groove (1042) and a fourth snap-fit ​​spring sheet (1043); the third snap-fit ​​spring sheets (1041) are provided in plurality and are all arranged at an angle outward from the head end to the tail end of the connector housing (1) at the bottom of the second shielding cover (5); the third snap-fit ​​grooves (1042) are provided in plurality and are all arranged at the bottom of the connector housing (1); the free ends of the plurality of third snap-fit ​​spring sheets (1041) are all inserted into the interior of the respective corresponding third snap-fit ​​grooves (1042) and are connected to the respective corresponding third snap-fit ​​grooves. The inner walls of the connector housing (1042) are mutually engaged and clamped, a plurality of fourth clamping springs (1043) are provided and are arranged on the top of the first shielding cover (2) in an outwardly inclined manner from the head end to the tail end of the connector housing (1), and the free ends of the plurality of fourth clamping springs (1043) are mutually engaged and clamped with the inner wall of the insertion groove (12) provided at the head end of the connector housing (1), thereby realizing a fixed connection between the first shielding cover (2), the first insulating shell (3), the second insulating shell (4), the second shielding cover (5) and the head end of the cable (7) which are combined into one body and the connector housing (1); The cable (7) further comprises a first insulating layer (71), a second insulating layer (73) and a wire core (74), wherein the second insulating layer (73) is wrapped around the outer periphery of the wire core (74), the shielding layer (72) is wrapped around the outer periphery of the second insulating layer (73), the first insulating layer (71) is wrapped around the outer periphery of the shielding layer (72), and the connecting end of the shielding layer (72) is continuously folded to form an annular installation space (721) for accommodating the connecting end of the first shielding cover (2) and the connecting end of the second shielding cover (5) to achieve electrical connection; The connecting end of the first shielding cover (2) is provided with a first strip-shaped connecting portion (21), and the connecting end of the second shielding cover (5) is provided with a second strip-shaped connecting portion (51); the first strip-shaped connecting portion (21) and the second strip-shaped connecting portion (51) are respectively bent into a semicircular ring shape with the cable (7) as an axis and are assembled and installed in the circular installation space (721) of the shielding layer (72); An insertion groove (12) for inserting a corresponding connector is provided at the head end of the connector housing (1), a through hole is provided at a corresponding position of the head end of the first shielding cover (2), and a plurality of connection springs (22) for electrically connecting to a shielding structure of the corresponding connector are provided at the edge of the through hole, and the plurality of connection springs (22) are arranged downward and tilted toward the center of the through hole.

2. A high voltage connector shielding structure according to claim 1, characterized in that: The first connection assembly comprises a clamping block (1011) and a clamping hole (1012); a plurality of the clamping blocks (1011) are provided and are arranged on both sides of the first insulating shell (3); a plurality of the clamping holes (1012) are provided and are arranged on both sides of the second insulating shell (4); the plurality of clamping blocks (1011) are respectively clamped in their respective corresponding clamping holes (1012), thereby achieving a fixed connection between the first insulating shell (3) and the second insulating shell (4).

3. A high voltage connector shielding structure according to claim 2, characterized in that: A plurality of upwardly protruding guide blocks (41) are provided on both sides of the second insulating shell (4), and a plurality of snap-fit ​​holes (1012) are respectively arranged on the corresponding guide blocks (41); a plurality of corresponding guide grooves (31) are provided on both sides of the first insulating shell (3), and a plurality of snap-fit ​​blocks (1011) are respectively arranged in the corresponding guide grooves (31); the plurality of guide blocks (41) are inserted into the corresponding guide grooves (31) so that the plurality of snap-fit ​​blocks (1011) are respectively fitted and clamped in the corresponding snap-fit ​​holes (1012), thereby achieving fixed connection between the first insulating shell (3) and the second insulating shell (4).

4. A high voltage connector shielding structure according to claim 1, characterized in that: The second connection assembly comprises a first snap-fit ​​spring sheet (1021) and a first snap-fit ​​groove (1022); a plurality of the first snap-fit ​​spring sheets (1021) are arranged on both sides of the first shielding cover (2) in an inclined manner from bottom to top; a plurality of the first snap-fit ​​grooves (1022) are arranged on both sides of the first insulating shell (3); free ends of the plurality of first snap-fit ​​spring sheets (1021) are respectively inserted into the interior of the respective corresponding first snap-fit ​​grooves (1022) and are mutually matched and clamped with the top surfaces of the respective corresponding first snap-fit ​​grooves (1022), thereby achieving a fixed connection between the first shielding cover (2) and the first insulating shell (3).

5. The high voltage connector shielding structure according to claim 1, characterized in that: The third connection assembly comprises a second snap-fit ​​spring sheet (1031) and a second snap-fit ​​groove (1032); a plurality of second snap-fit ​​spring sheets (1031) are provided and are arranged inwardly and obliquely from top to bottom on both sides of the second shielding cover (5); a plurality of second snap-fit ​​grooves (1032) are provided and are arranged on both sides of the second insulating shell (4); free ends of the plurality of second snap-fit ​​spring sheets (1031) are respectively inserted into the interior of the respective corresponding second snap-fit ​​grooves (1032) and are clamped together with the bottom surfaces of the respective corresponding second snap-fit ​​grooves (1032), thereby achieving a fixed connection between the second shielding cover (5) and the second insulating shell (4).

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