CN210692111U - Cable shielding grounding processing device - Google Patents

Abstract

The cable shielding grounding processing device comprises a high-voltage cable or a low-voltage cable (7) and a ground wire cable (1) which are arranged in parallel, wherein a shielding layer of the high-voltage cable or the low-voltage cable (7) is electrically connected with the ground wire cable (1) through a bracket (4), a shielding press ring (8), a shielding elastic sheet (9) and a shielding conducting sheet (10); and then the electric connection part of the shielding layer of the high-voltage or low-voltage cable (7) and the ground wire cable (1) is subjected to waterproof and dustproof sealing treatment and protection through the front shell (6), the rear shell (2), the first sealing gasket (3) and the second sealing gasket (5). The utility model discloses device shell lug connection is in the part afterbody that needs shielding ground connection to be used for charging oral area etc. and handles, delivers to the ground electromagnetic shielding signal through high-voltage cable or low-voltage cable water conservancy diversion to ground wire cable, realizes electromagnetic shielding signal's ground connection and handles.

Description

Cable shielding grounding processing device

Technical Field

The utility model relates to an electromagnetic interference technical field, concretely relates to cable shield ground connection processing apparatus.

Background

With the development and popularization of electric automobiles, the electromagnetic interference requirements on the electric automobiles are more and more strict; the electric automobile integrates high-power electronic elements, an engine, high-voltage and low-voltage cables and the like in a limited space, so that crosstalk of electromagnetic signals can be caused between devices and the cables, and harmful electromagnetic interference can be generated by the high-voltage and low-voltage cables; in order to ensure that the charging interface end has good electromagnetic compatibility, the charging interface end needs to be subjected to electromagnetic shielding treatment, so that electromagnetic interference generated by a high-voltage cable and a low-voltage cable is prevented.

The existing high-low voltage charging wire harness mainly adopts a shielding grounding mode for eliminating electromagnetic interference, but is only limited to a butt-joint plug-in unit end, and no grounding processing is carried out on a charging interface end; the radiated electromagnetic energy can exceed the charging interface end, and the EMC of the whole electric automobile can be influenced. However, some host manufacturers require the shielding layer grounding process for the charging interface end, which requires the shielding layer grounding and protection process to be performed at the charging interface end in addition to the shielding layer grounding and protection process at the connector end.

The existing grounding mode of a charging interface end is to simply protect and treat the outer cover and the shielding layer of a cable by peeling the cable outside the charging interface; or the shielding layer is exposed and connected with the small square number cable, and then the small square number cable is connected to the vehicle body, the processing method needs to perform protection processing on the cable peeling part, and the protection grade is difficult to meet IP 67; and workability and assemblability are poor.

Disclosure of Invention

The utility model aims at overcoming needs among the prior art and treating the shielding position and carry out the independent processing, handle the defect that the level can not satisfy protection requirement etc. and provide a cable shielding ground connection processing apparatus, can directly be used for treating the shielding position, need not treat the extra transformation of shielding position, barrier propterty is high.

The technical scheme of the utility model is that the cable shielding grounding processing device comprises a high-voltage cable or a low-voltage cable and a ground wire cable which are arranged in parallel, wherein the high-voltage cable or the low-voltage cable comprises an outer insulating layer, a shielding layer, an inner insulating layer and a conductor from outside to inside; the shielding layer of the high-voltage cable or the low-voltage cable is electrically connected with the conductor of the ground wire cable; the one end of high-voltage cable or low-voltage cable and the one end of ground wire cable all electricity connect in waiting to shield ground connection processing part (to the mouthful waiting to shield ground connection processing part that charges, generally acquiesce to charge the grafting end and be anterior, will the utility model discloses connect in the other end of the mouth that charges, afterbody promptly for realize waiting to shield ground connection processing part's shielding ground connection.

The utility model discloses a core is through being connected the shielding layer with high-pressure cable or low-voltage cable and the conductor electricity of ground wire cable, works as the utility model provides a when one end electric connection of high-pressure cable or low-voltage cable and ground wire cable is to the afterbody of treating shielding ground connection processing part, the electromagnetic radiation energy of treating shielding ground connection processing part shifts to the ground wire cable through the position of being connected of this shielding layer and ground wire cable through the electromagnetic shield layer in high-pressure cable or the low-voltage cable, then in other end water conservancy diversion to the ground through the ground wire cable or released.

Further, the shielding layer of the high-voltage cable or the low-voltage cable is electrically connected with the ground wire cable through the bracket, the shielding compression ring, the shielding elastic sheet and the shielding conducting sheet; the shielding compression ring, the shielding elastic sheet and the shielding conducting sheet are made of electric conductor materials; the shielding compression ring is used for sheathing the high-voltage cable or the low-voltage cable and pressing the shielding layer of the high-voltage cable or the low-voltage cable which is turned outwards, so that the shielding layer is positioned between the shielding compression ring and the high-voltage cable or the low-voltage cable; the shielding compression ring is also used for sleeving and compressing the conductor of the ground wire cable; the shielding elastic sheet is connected with the shielding pressure ring of the high-voltage cable or the low-voltage cable or the ground wire cable after the shielding pressure ring is sleeved and pressed, so that the shielding elastic sheet is electrically connected with the shielding pressure ring and fixes the single high-voltage cable or the single low-voltage cable or the single ground wire cable; the shielding conducting sheet is used for electrically connecting all the shielding elastic sheets; the support is provided with a plurality of fixing holes and used for integrally loading and fixing the shielding conducting sheet, the shielding elastic sheet and the high-voltage cable or the low-voltage cable or the ground wire cable sleeved and pressed by the shielding pressing ring.

The shielding layer of high-voltage cable or low-voltage cable realizes that good electricity is connected with the conductor of ground wire cable to realize shielding ground connection processing's key, so the utility model discloses utilize support, shielding clamping ring, shielding shell fragment and shielding to switch on the connecting portion of shielding layer and ground wire cable of piece design preparation high-voltage cable or low-voltage cable: the shielding press ring is mainly used for crimping a shielding layer of a high-voltage cable or a low-voltage cable and a conductor part of a ground wire, namely, the shielding layer of the high-voltage cable or the low-voltage cable is firstly turned outwards, and then the turned-outwards shielding layer is pressed by the shielding press ring; stripping off the insulating layer of the ground wire, and pressing the exposed conductor part by using a shielding press ring; then the support, the shielding elastic sheet and the shielding conduction sheet are combined to electrically connect and fix the ground wire cable which is crimped by the shielding pressing ring and each high-voltage cable or low-voltage cable, the shape of the shielding elastic sheet is approximately consistent with that of the shielding pressing ring, the shielding elastic sheet is used for electrically connecting and fixing the high-voltage cable or low-voltage cable shielding layer and the shielding pressing ring outside the ground wire cable from the outside, then each shielding elastic sheet and the shielding pressing ring which are fixed on the inner side of the shielding elastic sheet as well as the high-voltage cable or low-voltage cable or ground wire cable in the shielding pressing ring are placed in a single fixed position on the support, and then each shielding elastic sheet is electrically connected through the shielding conduction sheet, and finally, the electric connection of the high-voltage cable or low-voltage cable shielding layer and the ground wire.

The utility model discloses a cable shielding ground connection processing apparatus still includes front casing, back casing, first sealed pad and second sealed pad, form the space of loading said support, shielding clamping ring, shielding shell fragment and shielding conducting plate between front casing and the back casing, and the terminal surface of front casing and back casing has the hole to supply high-voltage cable or low-voltage cable and ground wire cable to pass through; the first sealing gasket is arranged between the rear shell and the support, and the second sealing gasket is arranged between the front shell and the support and used for enabling the cable shielding grounding processing device to have the waterproof and dustproof functions integrally through the compression between the front shell and the rear shell.

With casing and sealing member with high-voltage cable or low-voltage cable shielding layer and ground wire conductor's connection site encapsulate and seal the processing so that the utility model discloses the device has more practicality and application convenience, holds through the space between procapsid and the back casing and loads support, shielding clamping ring, shielding shell fragment and shielding lead-through piece because high-voltage cable or low-voltage cable and ground wire cable all wear into in the past casing and back casing and wear out, set up respectively between preceding casing and support, between back casing and the support through two sealed pads, realize preceding, back casing inner space and outside whole sealed to and preceding, the inside high-voltage cable of back casing or low-voltage cable shielding layer and ground wire conductor connecting portion's whole waterproof dustproof sealing.

Furthermore, the shielding elastic sheet is of a cylindrical structure with a plurality of through holes on the circumference, and clamping jaws are arranged on the inner sides of the through holes, the through holes are used for connecting the shielding conducting sheets, and the clamping jaws are used for clamping the shielding press ring fastened on the cable; the shielding conducting piece comprises a plurality of connecting claws, and each connecting claw is fixedly connected with the shielding elastic piece through a through hole in each shielding elastic piece.

The shielding elastic sheet plays a role in connecting the shielding press ring and the shielding conducting sheet, the shielding press ring is pressed with a shielding layer of a high-voltage cable or a low-voltage cable or a conductor part of a ground wire cable when the shielding press ring is fixed on the shielding elastic sheet, so the shielding elastic sheet can be designed into a closed cylinder shape or a non-closed cylinder shape according to the length of the cable, when the shielding press ring is in the closed cylinder shape, the cable penetrates through one end of the cylinder to clamp the shielding press ring on the cable in the shielding elastic sheet, when the shielding press ring is in the non-closed cylinder shape, the shielding press ring can be extruded into the cylinder shape from the opening of the cylinder shape by utilizing the elasticity of the shielding elastic sheet, the clamping jaws on the inner side of the shielding elastic sheet are used for forming inward connecting convex parts to extrude the shielding press ring to form a more reliable electric connection part with the shielding press ring, the through holes on the cylinder wall are used for connecting and, therefore, the conductor part of the ground wire cable and the shielding layers of the high-voltage cables or the low-voltage cables are electrically connected with each other through the connecting claws of the shielding press ring, the shielding elastic sheet and the shielding conducting sheet.

Furthermore, the side section of the shielding compression ring is in a shape like a straight line or L-shaped, and the cable is sleeved by the shielding compression ring through the short edge of the L.

The port at one end of the shielding compression ring can be a flat port (the side section is in a shape of a straight line) or an inner edge (the side section is in an L shape), and when the port is in the flat port, the inner side surface of the shielding compression ring is used for crimping and fastening the conductor part of the high-voltage cable or the low-voltage cable shielding layer or the ground wire cable at the inner side; when one end port has an inner edge, the inner edge forms another contact surface with the conductor part of the high-voltage cable or the low-voltage cable shielding layer or the ground wire cable except that the inner side surface of the shielding press ring is in contact with the conductor part of the high-voltage cable or the low-voltage cable shielding layer or the ground wire cable.

A high-voltage cable or a low-voltage cable and a ground wire cable which penetrate out from one end of the front shell are connected to the tail part of the grounding processing component to be shielded; the front shell is of an integral or split structure; all parts of the split structure are connected through buckles and/or bolts, and the split structure is convenient to have enough operating space to crimp or screw the cable on the to-be-shielded grounding processing part before all the parts are connected; the front shell and the rear shell are connected through bolts or buckles.

When the front shell and the rear shell are of an integral structure, the shielding grounding treatment of the grounding treatment component to be shielded can be realized by connecting a high-voltage cable or a low-voltage cable and a ground wire cable with one end penetrating out of the front shell and the rear shell to the tail part of the grounding treatment component to be shielded; when enough operating space needs to be reserved for crimping or screwing the cable on the to-be-shielded grounding processing component, the shell close to one end of the to-be-shielded grounding processing component is defined as a front shell, and the front shell is designed into a split structure.

Furthermore, the rear housing is provided with a fixing hole for fixing the entire device at a predetermined position, and then the high-voltage cable or the low-voltage cable and the ground cable are electrically connected to the tail of the grounding processing component to be shielded through a space between the front housing and the tail of the grounding processing component to be shielded.

When the device of the present invention is used for shielding and grounding treatment of a charging interface, that is, a charging interface cable shielding and grounding treatment device, except for the above arrangement, wherein the high-voltage cable or the low-voltage cable is a high-voltage ac cable or a high-voltage dc cable; when the high-voltage cable or the low-voltage cable is a high-voltage alternating-current cable, the high-voltage cable or the low-voltage cable generally comprises four cables, wherein a shielding layer of at least one of the four cables is electrically connected with a conductor of the ground wire cable; when the voltage cable is a direct current cable, the number of the high-voltage cables or the low-voltage cables is generally three, wherein the shielding layer of at least one high-voltage direct current cable is electrically connected with the conductor of the ground wire cable; and the high-voltage cable or the low-voltage cable and the ground wire cable which penetrate out from one end of the front shell are connected to the rear end of the charging interface.

When the utility model discloses a during the shielding ground connection of interface charges, the interface cable shielding ground connection processing apparatus that charges promptly for electric automobile, except that the aforesaid sets up, procapsid and back casing are the metal material, procapsid and/or back casing are connected with electric automobile's automobile body metal part, set up through metal casing promptly and lead to the ground shielding signal through metal casing-automobile body metal casing. Of course, when procapsid and/or back casing were metal material, also can not have the ground wire cable, with the shielding layer of high-voltage cable or low-voltage cable connect to procapsid and/or back casing, procapsid and/or back casing carry out the electricity with external ground connection metal body (automobile body) and are connected, can realize shielding ground connection processing equally, this is a simplification, can replace the utility model discloses the shielding ground connection processing scheme of function, for the utility model discloses more be close a processing scheme, not enough productization.

Therefore, the utility model discloses an advance point lies in:

1. the high-voltage cable of the utility model is provided with an outer insulating layer, a shielding layer, an inner insulating layer and a conductor from outside to inside; after the high-voltage cable is peeled to expose the shielding layer, sheathing the shielding layer by using a shielding compression ring for compression joint; sheathing the conductor part of the ground wire cable by using a shielding compression ring for compression joint; then the high-voltage cable is communicated with a ground wire cable through the shielding conducting sheet to realize the shielding grounding of the cable;

2. the internal structure of the utility model comprises a shielding elastic sheet, a shielding conducting sheet, a shielding pressure ring, a waterproof sealing gasket and a bracket, the high-voltage cable or the low-voltage cable shielding layer is electrically connected with the ground wire cable conductor part through the components, and waterproof and dustproof treatment is carried out with the outside, thus ensuring the reliability and stability of shielding grounding;

3. the external structure of the utility model is divided into a front shell and a rear shell, wherein the front shell can be designed into a whole or a split, and the front shell is divided into two halves and fixed by a buckle or other connection modes; the rear shell is provided with a mounting position (fixing hole) which can be fixed on a wiring harness or a fixed position in a vehicle; the front shell and the rear shell are connected through bolts or buckles, and the protection grade of the front shell and the rear shell is IP 67;

4. when the utility model is used in the AC charging interface of single-phase charging or three-phase charging, at least one high-voltage AC cable is electrically connected with the ground wire to realize shielding grounding; when the direct current charging interface is used, at least one high-voltage direct current cable is arranged to realize shielding grounding;

5. the utility model discloses can use the high tension cable of different brands, different standards, different external diameters in the device, application scope is wide.

6. The device of the utility model is simple in structure, convenient to use, general strong, barrier propterty is good: the device can be directly used at the tail parts of an alternating current charging interface and a direct current charging interface, the existing charging interface is not required to be changed, and the device can be connected with the charging interface through a bolt or a buckle, so that the emergence of electromagnetic signals is effectively reduced, the interference of the electromagnetic signals to other equipment is reduced, and the device has good use effect;

7. the utility model discloses the device and the charging seat decoupling zero, the event does not influence test items such as examine by force, and convenient quick implementation.

The utility model discloses the device not only is applied to new energy automobile's shielding layer and handles, and any scene that needs to handle the shielding layer all can adopt, can be used to shielding layer ground connection, and waterproof or the two is all handled.

Drawings

These and/or other aspects and advantages of the present invention will become more apparent and more readily appreciated from the following detailed description of the embodiments of the invention, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of the structure of the present invention; the cable-type ground wire connector comprises a ground wire cable 1, a rear shell 2, a first waterproof sealing gasket 3, a support 4, a second sealing gasket 5, a front shell 6, a high-voltage cable 7, a shielding press ring 8, a shielding elastic sheet 9, a shielding conducting sheet 10 and a fixing hole 11;

fig. 2 is a schematic perspective view of the shielding compression ring of the present invention;

fig. 3 is a schematic cross-sectional view of the "straight" type shielding compression ring of the present invention pressed outside the cable;

fig. 4 is a schematic cross-sectional view of the "L" type shielding compression ring of the present invention pressed outside the cable;

fig. 5 is a schematic perspective view of a shielding elastic sheet of the present invention;

fig. 6 is a schematic perspective view of a shielding conducting sheet of the present invention;

fig. 7 is a schematic perspective view of the middle bracket of the present invention;

fig. 8 is a schematic perspective view of the shielding elastic sheet and the shielding conductive sheet of the present invention after being connected and fixed to the bracket;

fig. 9 is a schematic view of the three-dimensional structure of the device of the present invention in a state where the components between the front housing and the rear housing are assembled in place;

FIG. 10 is a cross-sectional view corresponding to the perspective view of FIG. 9;

fig. 11 is a schematic structural view of the device of the present invention connected to the tail of the charging port;

fig. 12 is a schematic structural view of the device of the present invention with a fixing hole and a tail connection of the charging port.

Detailed Description

In order that those skilled in the art will better understand the present invention, the following detailed description of the invention is provided in conjunction with the accompanying drawings and the detailed description of the invention.

Example 1

A cable shielding grounding processing device is shown in figure 1, and comprises a high-voltage cable or a low-voltage cable 7 and a ground wire cable 1 which are arranged in parallel, a rear shell 2, a first sealing gasket 3, a support 4, a second sealing gasket 5, a front shell 6, a shielding pressing ring 8, a shielding elastic sheet 9, a shielding conducting sheet 10 and a fixing hole 11.

The general connection relationship of the components is as follows: the high-voltage cable or the low-voltage cable 7 comprises an outer insulating layer, a shielding layer, an inner insulating layer and a conductor from outside to inside; the shielding layer of the high-voltage cable or the low-voltage cable 7 is electrically connected with the conductor part of the ground wire cable 1 through the shielding compression ring 8, the shielding elastic sheet 9, the shielding conducting sheet 10 and the bracket 4; the rear shell 2, the first sealing gasket 3, the second sealing gasket 5 and the front shell 6 are used for sealing and packaging the electric connection parts of the high-voltage cable or the low-voltage cable 7 and the ground wire cable 1 into an integral structure, two ends of the high-voltage cable or the low-voltage cable 7 and two ends of the ground wire cable 1 penetrate out of the space formed by the front shell 6 and the rear shell 3 respectively, when the shielding and grounding device is used, the high-voltage cable or the low-voltage cable 7 and the ground wire cable 1 at the end of the front shell 6 are connected to a tail (such as a tail of a charging interface) interface of a grounding processing component to be shielded, the connection mode is crimping, clamping and other existing cable connection modes, and shielding and.

The three-dimensional structure of the shielding press ring 8 and the crimping connection of the shielding press ring and the cable are shown in fig. 2-4, the shielding press ring 8 is used for crimping the conductor part of the high-voltage cable or the low-voltage cable 7 of the everted shielding layer and/or the ground wire cable, so the shape of the shielding press ring is not limited to the cylindrical shape or the cylindrical shape shown in fig. 2, the shapes of the inner ring and the outer ring can be the same or different, and the shapes of the inner ring and the outer ring can be circular or polygonal, and; when the side section of the shielding compression ring is in a straight shape, the compression joint surface of the shielding compression ring and the cable is the inner side surface of the shielding compression ring, as shown in fig. 3; when the side section of the shielding compression ring is in an L shape, a contact surface can be added, namely, two inner side surfaces of the L shape can be electrically connected with the cable, as shown in FIG. 4; fig. 3 and 4 are cross-sectional views of two different port-shaped shielding rings electrically connected to a cable. The single shielding press ring 8 is crimped to realize the electric connection between the shielding layer of the single high-voltage cable or the low-voltage cable or the conductor part of the ground wire cable.

The shielding elastic sheet 9, the shielding conducting sheet 10 and the bracket 4 are used for electrically connecting the high-voltage cable or the low-voltage cable and/or the ground wire cable which are pressed and connected by the single shielding press ring 8 into a whole and fixing the whole. The schematic perspective structures of the shielding elastic sheet 9, the shielding conducting sheet 10 and the bracket 4 are respectively shown in fig. 5-7: the shielding elastic sheet 9 is used for loading and electrically connecting the shielding press ring 8 after the cable is crimped and electrically connecting the shielding press ring 10, as shown in fig. 5, the shielding elastic sheet 9 is a cylindrical structure with a plurality of through holes on the circumference, clamping jaws are arranged on the inner sides of the through holes, the through holes are used for connecting the shielding press ring 10, and the clamping jaws are used for forming closer contact with the shielding press ring 8 on the inner side; the shielding conducting sheet 10 (as shown in fig. 6) is used for electrically connecting all the shielding elastic sheets 9, and includes a plurality of connecting claws, each connecting claw is fixedly connected with the shielding elastic sheet 9 through a through hole on each shielding elastic sheet 9, so that the electrical connection between the shielding layer of the high-voltage cable or the low-voltage cable and the conductor part of the ground cable is realized through the plurality of connecting claws; the structural schematic diagram of the bracket 4 is shown in fig. 7, and the structural schematic diagram includes a plurality of fixing holes, and is used for integrally loading and fixing a high-voltage cable or a low-voltage cable 7 or a ground cable 1 sleeved and pressed by a shielding conducting sheet 10, a shielding elastic sheet 9 and a shielding pressing ring 8, and it can be seen that the shielding pressing ring 8 outside the cable and the shielding elastic sheet 9 outside the shielding pressing ring 8 are respectively loaded in each fixing hole, and the shielding conducting sheet 10 electrically connects the shielding elastic sheet 9, the shielding pressing ring 8 and the cable which are electrically connected with each other through a through hole on the shielding elastic sheet 9. The state of the shielding press ring 8, the shielding elastic sheet 9 and the shielding conducting sheet 10 after being installed in place on the bracket 4 is shown in fig. 8; fig. 9 shows a schematic perspective view of the high-voltage cable or the low-voltage cable 7, the ground wire cable 1, the shielding press ring 8, the shielding elastic sheet 9, and the shielding conductive sheet 10 after being mounted in place on the bracket 4, and fig. 10 shows a corresponding cross-sectional view thereof.

The front housing 6, the rear housing 2, the first gasket 3 and the second gasket 5 are used for integrally sealing and packaging the electric connection part (i.e. the bracket 4 and the components fixed thereon) of the high-voltage cable or the low-voltage cable 7 and the ground wire cable 1: a space for loading the bracket 4, the shielding press ring 8, the shielding elastic sheet 9 and the shielding conducting sheet 10 is formed between the front shell 6 and the rear shell 2, and holes are formed in the end surfaces of the front shell 6 and the rear shell 2 for the high-voltage cable or the low-voltage cable 7 and the ground wire cable 1 to pass through; the first sealing gasket 3 and the second sealing gasket 5 are respectively arranged between the rear shell 2 and the front shell 6 and the bracket 4 and are used for leading the whole device to have waterproof and dustproof functions through the compression between the front shell 6 and the rear shell 2; the front case 6 and the rear case 2 are connected by bolts or snaps.

When the device is used for shielding and grounding of a charging interface, a high-voltage cable or a low-voltage cable 7 which penetrates out of one end of a front shell 6 and a ground wire cable 1 are connected to the tail part of a grounding processing part (tail part of a charging structure) to be shielded, as shown in fig. 11, A is the device of the utility model, B is the tail part of the charging interface, and the head part corresponding to the tail part of the charging interface is the charging interface part into which a charging gun is inserted; fig. 12 is a structural form of fixing the device of the present invention in the vehicle interior through the fixing hole 11, only a certain operation space is reserved at the tail of the front housing and the charging interface, so as to connect the high voltage cable or the low voltage cable and the ground wire cable of the present invention to the tail of the charging interface, in this case, the front housing 6 can be designed as a split structure; the parts of the split structure are connected by a buckle and/or a bolt.

It can be seen that the high-voltage cable or the low-voltage cable of the utility model can be changed in model, outer diameter, brand, etc. according to the use environment, when the high-voltage cable or the low-voltage cable 7 is used as a charging interface cable shielding grounding processing device, the high-voltage cable or the low-voltage cable is a high-voltage alternating current cable or a high-voltage direct current cable; when the high-voltage cable or the low-voltage cable 7 is a high-voltage alternating-current cable, the shielding layer of at least one of the high-voltage cable or the low-voltage cable 7 is electrically connected with the conductor of the ground wire cable; when the voltage cable 7 is a direct current cable, the shielding layer of at least one high voltage direct current cable of the high voltage cable or the low voltage cable 7 is electrically connected with the conductor of the ground wire cable; the high-voltage cable or the low-voltage cable 7 and the ground wire cable 1 which penetrate out from one end of the front shell 6 are connected to the rear end of the charging interface.

When the cable shielding grounding processing device is used for a charging interface on a new energy automobile, namely an electric automobile charging interface, in order to avoid the trouble of grounding a ground wire cable independently, the front shell 6 and the rear shell 2 can be designed to be made of metal materials, the front shell 6 and/or the rear shell 2 are connected with a metal part of an automobile body of the electric automobile, and the ground wire cable is electrically connected with the front shell 6 and/or the rear shell 2, so that the signal in the ground wire cable is guided to the ground from the automobile body.

Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A cable shielding grounding processing device is characterized by comprising a high-voltage cable or a low-voltage cable (7) and a ground wire cable (1) which are arranged in parallel,

the high-voltage cable or the low-voltage cable (7) comprises an outer insulating layer, a shielding layer, an inner insulating layer and a conductor from outside to inside;

the shielding layer of the high-voltage cable or the low-voltage cable (7) is electrically connected with the conductor of the ground wire cable (1);

one end of the high-voltage cable or the low-voltage cable (7) and one end of the ground wire cable (1) are electrically connected to the grounding processing component to be shielded, and the shielding grounding of the grounding processing component to be shielded is achieved.

2. The cable shielding and grounding processing device according to claim 1, wherein the shielding layer of the high-voltage cable or the low-voltage cable (7) is electrically connected with the ground wire cable (1) through a bracket (4), a shielding press ring (8), a shielding elastic sheet (9) and a shielding conducting sheet (10);

the shielding press ring (8), the shielding elastic sheet (9) and the shielding conducting sheet (10) are made of electric conductor materials;

the shielding press ring (8) is used for sheathing the high-voltage cable or the low-voltage cable (7) and pressing the shielding layer of the high-voltage cable or the low-voltage cable (7) which is turned outwards, so that the shielding layer is positioned between the shielding press ring (8) and the high-voltage cable or the low-voltage cable; the shielding compression ring (8) is also used for sleeving and compressing the conductor of the ground wire cable (1);

the shielding elastic sheet (9) is connected with the shielding press ring (8) of the high-voltage cable or the low-voltage cable (7) or the ground wire cable (1) after the shielding press ring (8) is sleeved and pressed, so that the shielding elastic sheet (9) is electrically connected with the shielding press ring (8) and the single high-voltage cable or the single low-voltage cable (7) or the single ground wire cable (1) is fixed;

the shielding conducting sheet (10) is used for electrically connecting all the shielding elastic sheets (9);

the support (4) is provided with a plurality of fixing holes for integrally loading and fixing the shielding conducting sheet (10), the shielding elastic sheet (9) and the shielding pressing ring (8) sleeved and pressed high-voltage cable or low-voltage cable (7) or ground wire cable (1).

3. The cable shield ground treatment device according to claim 2, further comprising a front housing (6), a rear housing (2), a first gasket (3) and a second gasket (5);

a space for loading the support (4), the shielding press ring (8), the shielding elastic sheet (9) and the shielding conducting sheet (10) is formed between the front shell (6) and the rear shell (2), and holes are formed in the end faces of the front shell (6) and the rear shell (2) for the high-voltage cable or the low-voltage cable (7) and the ground wire cable (1) to pass through;

the first sealing gasket (3) is arranged between the rear shell (2) and the bracket (4); the second gasket (5) is arranged between the front shell (6) and the support (4) and used for enabling the whole cable shielding grounding processing device to have waterproof and dustproof functions through compression between the front shell (6) and the rear shell (2).

4. The cable shield ground treatment device of claim 2,

the shielding elastic sheet (9) is of a cylindrical structure, a plurality of through holes are formed in the circumference of the cylindrical structure, clamping jaws are arranged on the inner sides of the through holes, the through holes are used for being connected with the shielding conducting sheet (10), and the clamping jaws are used for clamping a shielding pressing ring (8) fastened on a cable;

the shielding conducting sheet (10) comprises a plurality of connecting claws, and each connecting claw is fixedly connected with the shielding elastic sheet (9) through a through hole in each shielding elastic sheet (9).

5. The cable shield ground treatment device according to claim 2, characterized in that the shield collar (8) has a side cross-section in the shape of a "straight".

6. The cable shielding and grounding device according to claim 2, wherein the shielding press ring (8) has an L-shaped side cross section, and the shielding press ring (8) is used for sheathing the cable through the short side of the L.

7. The cable shield ground treatment device of claim 3,

a high-voltage cable or a low-voltage cable (7) and a ground wire cable (1) which penetrate out from one end of the front shell (6) are connected to the tail part of the grounding processing component to be shielded;

the front shell (6) is of an integral or split structure; all parts of the split structure are connected through buckles and/or bolts, and the split structure is convenient to have enough operating space to crimp or screw the cable on the to-be-shielded grounding processing part before all the parts are connected;

the front shell (6) and the rear shell (2) are connected through bolts or buckles.

8. The cable shielding and grounding device according to claim 7, wherein the rear housing (2) is provided with a fixing hole (11) for fixing the device as a whole at a predetermined position and then electrically connecting the high-voltage cable or the low-voltage cable (7) and the ground wire cable (1) to the tail of the grounding component to be shielded through a space between the front housing (6) and the tail of the grounding component to be shielded.

9. A cable shielding and grounding processing device for a charging interface, which is characterized by using the cable shielding and grounding processing device as claimed in any one of claims 3, 7 and 8, wherein the high-voltage cable or the low-voltage cable (7) is a high-voltage alternating current cable or a high-voltage direct current cable;

when the high-voltage cable or the low-voltage cable (7) is a high-voltage alternating-current cable, the shielding layer of at least one of the high-voltage cable or the low-voltage cable (7) is electrically connected with the conductor of the ground wire cable;

when the voltage cable (7) is a direct current cable, the shielding layer of at least one high-voltage direct current cable in the high-voltage cable or the low-voltage cable (7) is electrically connected with the conductor of the ground wire cable;

and a high-voltage cable or a low-voltage cable (7) and a ground wire cable (1) which penetrate out from one end of the front shell (6) are connected to the rear end of the charging interface.

10. A cable shielding and grounding processing device for a charging interface of an electric automobile, which is characterized in that the cable shielding and grounding processing device for the charging interface of the electric automobile according to claim 9 is used, wherein the front shell (6) and the rear shell (2) are made of metal materials, and the front shell (6) and/or the rear shell (2) are/is connected with a metal part of an automobile body of the electric automobile.

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