A shielded connector for automobile

Abstract

The present invention relates to a shielded connector for automobiles in the field of electrical component technology, comprising a shielded connector body, a shielded wire, a transfer assembly, a metal mesh, and a terminal block. The transfer assembly is integrally sleeved on the shielding layer of the shielded wire end, and after the end of the shielded wire enters a housing cavity from a shielded wire port, the transfer assembly contacts the inner circumference of a shielding ring. The terminal block enters the housing cavity from the terminal port and is electrically connected to the end of the shielded wire. The metal mesh is sleeved outside the housing and is tied and contacted with the shielding ring and the conductive ring respectively by metal ties. Interference electrical signals from the shielding layer of the shielded wire are sequentially transferred to the conductive ring via the transfer assembly, the shielding ring, and the metal mesh, and then transferred to the ground via the grounding end face of the grounding block. The present invention transforms the metal housing structure of the prior art into an integrated structure of a resin material and a metal ring. The stability of the shielding ring and the conductive ring structure can effectively improve the shielding effect, and the housing and the shield cover of the prior art are cleverly integrated into one, thereby reducing the number of structural components of the shielded connector. At the same time, the resin material housing also significantly reduces the manufacturing cost of the shielded connector.

Description

Technical Field

[0001] The present invention belongs to the technical field of electrical components, and in particular relates to a shielded connector for automobiles. Background Art

[0002] Automobiles are equipped with a wide variety of electronic devices, and wiring harnesses are used to transmit power, control signals, and other information to these devices. These wiring harnesses are primarily connected to electronic devices and other wiring harnesses via connectors. As connectors for these wiring harnesses, it is known that the ends of two shielded cables handling high voltages in electric vehicles (EVs) and hybrid electric vehicles (HEVs) must use shielded connectors that can block interfering electrical signals.

[0003] The structure of an existing shielded connector, as disclosed in Japanese Patent Application Laid-Open No. 2011-119120, comprises: a terminal-attached wire having terminals connected to the ends of the wire; a housing that accommodates the terminals of the terminal-attached wire; a shielding cover assembled to the housing; a braided conductor mounted on the exterior of the wire; and a shielding ring that sandwiches the braided conductor between the shielding ring and the shielding cover, thereby securing the conductor and the shielding cover to each other. This prior art shielded connector utilizes a metal housing, a shielding cover, and a braided conductor. The shielding ring sandwiches the braided conductor between the shielding ring and the shielding cover, securing the conductor and the shielding cover to each other. However, this prior art suffers from technical issues such as low assembly efficiency due to the large number of components and the high cost of the metal housing.

[0004] For example, the publication number CN111211433A discloses a shielded connector, which comprises a braided conductor (31) formed by braiding a plurality of braided wires into a grid shape and a conductive shielding cover (32). The braided conductor (31) comprises a cylindrical braided conductor body (311) mounted outside the electric wire (2) and a lead-out portion (312) obtained by bundledly leading a plurality of braided wires from the axial end of the braided conductor body. The lead-out portion (312) is electrically connected to the shielding cover (32). This technology aims to electrically connect the braided conductor to the shielding cover by electrically connecting the lead-out portion led out from the braided conductor to the shielding cover, thereby omitting the fastening ring in the prior art that electrically connects the braided conductor to the shielding cover by fastening the shielding ring, thereby achieving the purpose of reducing manufacturing costs. However, the effect is not obvious. Summary of the Invention

[0005] In view of the defects in the prior art, an object of the present invention is to provide a shielded connector for an automobile.

[0006] According to the present invention, a shielded connector for automobiles includes a shielded connector body, a shielded wire, a transfer assembly, a metal mesh, and a connection terminal;

[0007] The shielded connector body includes a shell, a shielding ring, and a conductive ring. The shell has a shielding wire port and a terminal port. There is an accommodating cavity between the shielding wire port and the terminal port. The shielding ring is embedded in the shell and adjacent to the shielding wire port. The inner and outer circumferences of the shielding ring are both exposed. The conductive ring is provided with a grounding block. The conductive ring is embedded in the shell and adjacent to the terminal port. The outer circumference of the conductive ring and the grounding end surface of the grounding block are exposed. The shell is made of resin material. The shielding ring and the conductive ring are both metal parts. The shell, the shielding ring, and the conductive ring are integrally formed into the shielded connector body.

[0008] The transfer component is integrally sleeved on the shielding layer of the end portion of the shielding wire, and after the end portion of the shielding wire enters the accommodating cavity from the shielding wire port, the transfer component contacts the inner circumferential surface of the shielding ring, and the terminal enters the accommodating cavity from the terminal port and is electrically connected to the end portion of the shielding wire. The metal mesh is cylindrical, and the metal mesh is sleeved outside the shell. The metal mesh is respectively tied and contacted with the shielding ring and the conductive ring by metal ties. The interference electrical signal from the shielding layer of the shielding wire is transferred to the conductive ring in sequence through the transfer component, the shielding ring, and the metal mesh, and then transferred to ground through the grounding end surface and contact with the metal part of the electrical component connected to the shielding connector body.

[0009] In some embodiments, a plurality of barrel openings are arranged along the width direction of the shielded wire port, the shielding ring includes a plurality of circular rings connected side by side, and the barrel openings are adapted to fit the circular rings.

[0010] In some embodiments, a panel is provided in the accommodating cavity, and the panel is used to isolate the shielding wire from the connection terminal.

[0011] In some embodiments, the grounding end surface is parallel to an end surface of the terminal port, and the grounding end surface protrudes from the end surface of the terminal port.

[0012] In some implementations, there are two grounding blocks, and the two grounding blocks are located on opposite sides of the conductive ring.

[0013] In some embodiments, one of the two grounding blocks extends outward from the end surface to form a docking error-proofing block.

[0014] In some embodiments, the included angle between the shielding wire port and the terminal port is 60°-120°.

[0015] In some embodiments, a sealing ring is further included, and a plurality of sealing rings are formed along the outer circumference of the sealing ring, and the plurality of sealing rings are axially spaced apart.

[0016] In some embodiments, the transfer assembly includes an inner sleeve, an outer sleeve, and a spring coil;

[0017] The inner sleeve is sleeved on the shielding layer of the shielding wire, and the shielding layer peeled off at the end of the shielding wire is reversely attached to the outer circumference of the inner sleeve. The outer sleeve is sleeved on the inner sleeve to clamp the shielding layer. An annular groove is formed on the outer circumference of the outer sleeve, and the spring ring is sleeved on the annular groove. The outer circumference of the spring ring is pressed and contacted with the inner circumference of the shielding ring.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention replaces the prior art metal housing structure with an integrated structure of resin and metal rings. The stability of the shielding ring and conductive ring structures effectively improves shielding effectiveness. Furthermore, the prior art housing and shield cover are cleverly integrated into one, reducing the number of structural components in the shielded connector and significantly reducing the cost of the resin housing, thereby significantly reducing the manufacturing cost of the shielded connector. Furthermore, multiple sealing rings spaced apart on the outer circumference of the sealing ring effectively improve sealing performance.

[0020] 2. The automotive shielded connector of the present invention improves the transfer rate of interfering electrical signals in the shielding layer by optimizing the transfer component into an inner and outer sleeve structure and adding an elastic contact structure, thereby effectively enhancing the shielding effect of interfering electrical signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the shielded connector of the present invention without being wrapped with a metal mesh;

[0023] Figure 2 This is a schematic diagram of the structure of the shielded connector of the present invention when viewed from above without being wrapped with a metal mesh;

[0024] Figure 3 This is a schematic cross-sectional view of the shielded connector of the present invention without the metal mesh wrapped around it;

[0025] Figure 4 for Figure 3 The figure shows a partial enlarged structural diagram of the transfer assembly and the sealing ring;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the shielded connector body of the present invention;

[0027] Figure 6 It is a schematic cross-sectional structural diagram of the shielded connector body of the present invention;

[0028] Figure 7 This is a bottom view of the structure of the shielded connector body of the present invention;

[0029] Figure 8 It is a structural schematic diagram of the shielding ring of the present invention;

[0030] Figure 9 Schematic diagram of the structure of the conductive ring of the present invention;

[0031] Figure 10 Schematic diagram of the structure of the housing of the present invention;

[0032] Figure 11 It is a structural schematic diagram of the transfer assembly of the present invention;

[0033] Figure 12 It is a structural schematic diagram of the outer sleeve of the present invention;

[0034] Figure 13 It is a structural schematic diagram of the shielding wire of the present invention;

[0035] Figure 14 Schematic diagram of the structure of the sealing ring of the present invention;

[0036] Figure 15 It is a schematic diagram of the overall structure of the shielded connector of the present invention. DETAILED DESCRIPTION

[0037] The present invention will be described in detail below with reference to specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those skilled in the art, several changes and improvements can be made without departing from the scope of the present invention. These all fall within the scope of protection of the present invention. Example

[0038] This embodiment provides a shielded connector for automobiles, such as Figure 1-15 As shown, it mainly includes a shielded wire connector body 100, a shielded wire 200, a transfer component 300, a metal mesh 400 and a connection terminal 500.

[0039] The shielded connector body 100 is mainly composed of a shell 110 and a shielding ring 120 and a conductive ring 130 embedded in the shell 110. The shell 110 is a component that provides connection between the shielded wire 200 and the terminal 500. It is provided with a shielded wire port 111 for the shielded wire 200 to enter, a terminal port 112 for the terminal 500 to enter, and a receiving cavity 113 located between the shielded wire port 111 and the terminal port 112. The receiving cavity 113 is provided with a connection seat and other structures for accommodating the shielded wire 200 and electrically connecting the terminal 500. In this embodiment, the angle between the axes of the shielded wire port 111 and the terminal port 112 located at both ends of the shell 110 is 90°, that is, the shielded connector body 100 is a 90° corner shielded connector. In this case, the overall shape of the shell 110 can be rectangular, L-shaped, etc. In this embodiment, the shielded wire port 111 includes two side-by-side barrel openings 114. The two side-by-side barrel openings 114 are arranged along the width direction of the shielded wire port 111. The so-called width direction of the shielded wire port 111 refers to the direction perpendicular to the entry direction of the shielded wire 200. The barrel opening 114 is cylindrical and can form a good fit with the outer peripheral surface of the shielded wire 200. The terminal port 112 is used for the entry of the wiring terminal 500. When the shielded wire port 111 is provided with two barrel openings 114 side by side, the terminal port 112 is also provided with two ports for the two wiring terminals 500 to enter. The positions of the two ports are respectively adapted to the positions of the two barrel openings 114, forming two sets of compatible wiring ports. The port can be circular, square, etc., adapted to the shape of the wiring terminal 500 to be entered. When the shell 110 is used to connect multiple shielded wires, a panel 115 is provided in its accommodating cavity 113. The panel 115 is used to physically isolate the two sets of matching barrel openings 114 and ports, so that the multiple sets of connected shielded wires 200 and terminal blocks 500 located in the accommodating cavity 113 are physically isolated, reducing signal interference between the shielded wires and further improving the shielding effect of interfering electrical signals.

[0040] The shielding ring 120 is a structure used to electrically connect to the shielding layer 210 of the shielded wire 200. It is made of a metal such as copper. It is a circular ring structure formed by closing a long rectangular piece and is embedded in the housing 110 near the side of the shielded wire port 111. After the shielding ring 120 is embedded in the housing 110, its outer peripheral surface is exposed and is used to achieve electrical connection with the conductive ring 130. Its inner peripheral surface is also exposed and is used to achieve electrical connection with the shielding layer of the shielded wire 200 entering from the shielded wire port 111. In this embodiment, the shielding ring 120 includes two circular rings 121, which are integrally connected to form a horizontal figure-8 structure. The two circular rings 121 correspond to the two barrel openings 114 respectively. The conductive ring 130 is made of a metal such as copper and is grounded by contacting the metal structure of the electrical components connected to the shielded connector body 100, thereby grounding the interfering electrical signals. The conductive ring 130 is primarily composed of a ring-shaped body 132 and a grounding block 131 protruding from the ring-shaped body 132. The structure of the ring-shaped body 132 is essentially similar to that of the shielding ring 120, and is similarly formed by bending a long rectangular piece closed to form a circular ring structure. The grounding block 131 is located below the ring-shaped body 132 and is integrally formed, and is a rectangular block or an arc-shaped block with an arc surface. In this embodiment, there are two grounding blocks 131, which are connected to opposite sides of the ring-shaped body 132. The shapes of the two grounding blocks 131 can be the same or different. The conductive ring 130 is embedded in the housing 110 near the terminal port 112, and the outer peripheral surface of the ring-shaped body 132 of the conductive ring 130 is exposed for electrical connection to the shielding ring 130. The grounding end surfaces 1310 of the two grounding blocks 131 extend beyond the end surface of the terminal port 112, and the grounding end surfaces 1310 are parallel to the end surface of the terminal port 112. The grounding end surface 1310, which protrudes beyond the end surface of the terminal port 112, is designed to contact the metal surface of the connected electrical component to achieve grounding. In this embodiment, a docking error prevention block 133 is formed on one of the two grounding blocks 131, extending outward from the grounding end surface 1310. The docking error prevention block 133 is a prismatic shape, such as a cone. This docking error prevention block 133 provides a stop when the shielded connector body 100 is connected to the electrical component, improving efficiency while preventing installation errors.

[0041] The transfer assembly 300 is a metal component with a sleeve structure. It is sleeved onto the shielding layer at the end of the shielded wire 200. After the end of the shielded wire 200 enters the accommodating cavity 113 through the sleeve opening 114, the outer layer of the transfer assembly 300 comes into close contact with the inner circumference of the shielding ring 120, thereby transferring the interfering electrical signals on the shielding layer to the shielding ring 120. This embodiment also includes a sealing ring 600. The outer circumference of the sealing ring 600 is formed with multiple sealing rings 610, which are spaced apart. The sealing ring 600 is sleeved onto the end of the shielded wire 200 and is located outside the inner sleeve 310.

[0042] One end of the terminal block 500 passes through the terminal port 112 into the accommodating cavity 113 and electrically connects to the end of the shielded wire 200. This electrical connection is achieved through a conductor. The other end of the terminal block 500 is located outside the terminal port 112 and is used to electrically connect to an electrical device. The metal mesh 400 is a cylindrical structure. The housing 110 is enclosed within the metal mesh 400. Two metal ties are used to secure the mesh near its ends to the outer circumferences of the shielding ring 120 and the conductive ring 130, respectively, to achieve electrical connection.

[0043] The operating principle of the automotive shielded connector provided in this embodiment is as follows: external interference electrical signals on the shielding layer of the shielded wire 200 are transferred to the shielding ring 120 via the transfer assembly 300. The signals are then transferred to the conductive ring 130 via the spring coil 330, the shielding ring 120, and the metal mesh 400. The interference signals are then transferred to the ground by the grounding block 131 through the metal parts of the electrical components connected to the shielded connector body 100, thereby shielding and eliminating the interference signals. The shielded wire connector body provided in this embodiment transforms the metal shell structure of the prior art into an integrated structure of resin material and metal ring. The stability of the shielding ring and conductive ring structures effectively improves the shielding effect. The prior art shell and shield cover are cleverly integrated into one, reducing the number of structural components of the shielded connector and significantly reducing the cost of the resin shell, thereby significantly reducing the manufacturing cost of the shielded connector. Furthermore, the multiple sealing rings 610 spaced apart on the outer circumference of the sealing ring 600 effectively improve the sealing performance. Example

[0044] This embodiment 2 is formed on the basis of embodiment 1. By optimizing the transfer component into an inner and outer sleeve structure and adding an elastic contact structure, the transfer rate of interfering electrical signals in the shielding layer is improved, and the shielding effect of interfering electrical signals is effectively enhanced. Specifically:

[0045] like Figure 11-12As shown, the transfer assembly 300 mainly includes an inner sleeve 310, an outer sleeve 320, and a spring ring 330, all made of metal. The spring ring 330 is installed in an annular groove 321 located on the outer circumference of the outer sleeve 320, and the outer circumference of the spring ring 330 is higher than the annular surface of the annular groove 321. In this embodiment, the inner sleeve 310 is sleeved onto the shielding layer at the end of the shielded wire 200, and the stripped shielding layer at the front end of the inner sleeve 310 is reversely sleeved onto the outer circumference of the inner sleeve 310. At this time, the outer sleeve 320 is sleeved onto the inner sleeve 310, and the shielding layer on the outer circumference of the inner sleeve 310 is compressed between the inner circumference of the outer sleeve 320 and the outer circumference of the inner sleeve 310. Through the close contact between the inner and outer circumferences of the inner sleeve 310 and the shielding layer of the shielded wire 200, interfering electrical signals can be effectively transferred, thereby improving the shielding effect of the interfering signals.

[0046] like Figure 3-4 As shown, after the end of the shielded wire 200 is sleeved onto the transfer assembly 300, it enters the accommodating cavity 113 from the barrel opening 114. At this time, the outer circumference of the spring coil 330 is in close contact with the inner circumference of the shielding ring 120, thereby transferring the interference electrical signal of the shielding layer in the shielded wire 200 to the outer sleeve 320. Then, it is transmitted to the conductive ring 130 through the spring coil 330, the shielding ring 120, and the metal mesh 400 in sequence. The interference electrical signal is then transmitted to the ground by the ground block 131 through the metal parts of the electrical components connected to the shielded connector body 100. The elastic contact between the spring coil 330 and the shielding ring 120 can effectively prevent poor contact caused by external vibrations, thereby achieving high-quality shielding and elimination of interference signals, effectively improving the shielding effect.

[0047] In the description of this application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0048] The above describes specific embodiments of the present invention. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. The embodiments of this application and the features in the embodiments may be combined with each other in any manner unless there is a conflict.

Claims

1. A shielded connector for automobile, characterized in that: It comprises a shielded connector body (100), a shielded wire (200), a transfer assembly (300), a metal mesh (400), and a connection terminal (500); The shielded connector body (100) comprises a shell (110), a shielding ring (120) and a conductive ring (130), wherein the shell (110) has a shielding wire port (111) and a terminal port (112), and an accommodating cavity (113) is provided between the shielding wire port (111) and the terminal port (112), and the shielding ring (120) is embedded in the shell (110) and adjacent to the shielding wire port (111), wherein the inner circumference and the outer circumference of the shielding ring (120) are both exposed, and the conductive ring (130) is provided with a plurality of conductive rings. ) is provided with a grounding block (131), the conductive ring (130) is embedded in the shell (110) and adjacent to the terminal port (112), the outer peripheral surface of the conductive ring (130) and the grounding end surface (1310) of the grounding block (131) are exposed, the shell (110) is made of resin material, the shielding ring (120) and the conductive ring (130) are both metal parts, and the shell (110), the shielding ring (120) and the conductive ring (130) are integrally formed into a shielded connector body (100); The transfer assembly (300) is integrally sleeved on the shielding layer at the end of the shielding wire (200), and after the end of the shielding wire (200) enters the accommodating cavity (113) from the shielding wire port (111), the transfer assembly (300) contacts the inner circumference of the shielding ring (120), and the terminal (500) enters the accommodating cavity (113) from the terminal port (112) and is electrically connected to the end of the shielding wire (200). The metal mesh (400) is cylindrical, and the metal mesh (400) is 0) is sleeved outside the housing (110), and the metal mesh (400) is tied and contacted with the shielding ring (120) and the conductive ring (130) respectively by a metal tie, and the interference electrical signal from the shielding layer of the shielding wire (200) is transferred to the conductive ring (130) in sequence through the transfer component (300), the shielding ring (120), and the metal mesh (400), and then transferred to the ground through the grounding end surface (1310) and contact with the metal part of the electrical device connected to the shielding connector body (100); The transfer assembly (300) includes an inner sleeve (310), an outer sleeve (320), and a spring coil (330); The inner sleeve (310) is sleeved on the shielding layer of the shielding wire (200), and the shielding layer peeled off at the end of the shielding wire (200) is reversely attached to the outer peripheral surface of the inner sleeve (310), and the outer sleeve (320) is sleeved on the inner sleeve (310) to clamp the shielding layer. An annular groove (321) is formed on the outer peripheral surface of the outer sleeve (320), and the spring ring (330) is sleeved on the annular groove (321), and the outer peripheral surface of the spring ring (330) is pressed and contacted with the inner peripheral surface of the shielding ring (120).

2. The automotive shielded connector according to claim 1, wherein: A plurality of barrel openings (114) are arranged along the width direction of the shielded wire port (111); the shielding ring (120) comprises a plurality of circular rings (121) connected side by side; and the barrel openings (114) are adapted to fit the circular rings (121).

3. The automotive shielded connector according to claim 2, wherein: A surrounding plate (115) is provided in the accommodating cavity (113), and the surrounding plate (115) is used to isolate the shielding wire (200) from the connection terminal (500).

4. The automotive shielded connector according to claim 1, wherein: The grounding end surface (1310) is parallel to the end surface of the terminal port (112), and the grounding end surface (1310) protrudes from the end surface of the terminal port (112).

5. The shielded connector for automobile according to claim 4, characterized in that: There are two grounding blocks (131), and the two grounding blocks (131) are located on opposite sides of the conductive ring (130).

6. The automotive shielded connector according to claim 5, wherein: One of the two grounding blocks (131) extends outward from the end surface to form a docking error-proofing block (133).

7. The automotive shielded connector according to claim 1, wherein: The included angle between the shielded wire port (111) and the terminal port (112) is 60°-120°.

8. The shielded connector for automobile according to claim 1, wherein: It also includes a sealing ring (600), and a plurality of sealing rings (610) are formed along the outer peripheral surface of the sealing ring (600), and the plurality of sealing rings (610) are arranged at intervals in the axial direction.

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