A wire harness shielding duct

Abstract

The present invention discloses a wire harness shielding trough, which relates to the technical field of automobile accessories. The wire harness shielding trough comprises a main body and a connecting structure, wherein a shielding layer is arranged on the main body, and the main body can be curled and deformed along its width direction so that the main body is curled into a cylindrical structure to accommodate the wire harness; the connecting structure is arranged between the two side ends in the width direction of the main body to connect and fix the two side ends in the width direction of the main body when the main body is curled; wherein, when the main body is enclosed to form the cylindrical structure, the shielding layer is used to cover the periphery of the wire harness for electromagnetic shielding. The present invention aims to solve the problem that the electromagnetic shielding effect of the existing automobile wire harness is not ideal when it is wrapped.

Description

Technical Field

[0001] The invention relates to the technical field of automobile accessories, and in particular to a wiring harness shielding duct. Background Art

[0002] At present, the industry often adopts temporary measures such as wrapping aluminum foil or copper foil for the wiring harnesses that need to be shielded after installation. However, this measure is not a solution that can be tooled and mass-produced. The shielding layer often fails due to durability damage problems. In addition, it is often impossible to implement good grounding in this solution, resulting in failure to achieve the ideal shielding effect. Therefore, there are almost no countermeasures for electromagnetic compatibility design in this direction in the industry. Summary of the invention

[0003] The main purpose of the present invention is to provide a wire harness shielding trough, which aims to solve the problem that the electromagnetic shielding effect of the existing automobile wire harness is not ideal when it is wrapped.

[0004] To achieve the above object, the present invention provides a wiring harness shielding duct, comprising:

[0005] A body, on which a shielding layer is disposed, the body being capable of being curled and deformed along its width direction so that the body is curled into a cylindrical structure to accommodate a wiring harness; and

[0006] A connecting structure is provided between two side ends of the body in the width direction, so as to connect and fix the two side ends of the body in the width direction when the body is curled;

[0007] Wherein, when the main body is enclosed to form the cylindrical structure, the shielding layer is used to cover the periphery of the wiring harness for electromagnetic shielding.

[0008] Optionally, the connection structure includes a plurality of buckles arranged at intervals along the length direction of the body, each of the buckles includes two buckles, and the two buckles are arranged on both side ends in the width direction of the body and correspond to each other;

[0009] When the body is enclosed along its width direction to form the cylindrical structure, the two fasteners are engaged with each other to limit the separation of the two side ends of the body along the width direction.

[0010] Optionally, a first buckle groove is concavely provided on an end surface of one of the buckles along the width direction of the body, and a first convex block is convexly provided on an end surface of the other buckle along the width direction of the body, and the first buckle groove is matched with the first convex block;

[0011] One of the fasteners is provided with a second protrusion on one side along the length direction of the main body, and the other fastener is provided with a gusset plate on a side corresponding to the second protrusion. The gusset plate extends along the width direction of the main body and at least partially protrudes from the corresponding fastener, and the gusset plate is adapted to the second protrusion.

[0012] Optionally, the bottom of the first buckle groove is arranged to be contracted toward the groove opening.

[0013] Optionally, the second protrusion is arranged obliquely toward the corresponding fastener in the width direction of the body.

[0014] Optionally, one end surface of one fastener along the width direction of the body is further provided with a mounting groove, a fastening piece is installed in the mounting groove, and another fastener is provided with a locking buckle on one end surface corresponding to the mounting groove, and when the two fasteners are matched, the fastening piece is fastened with the locking buckle;

[0015] The lock buckle and the buckle connector are both connected to the shielding layer and are made of metal.

[0016] Optionally, the wire harness shielding duct further includes at least one wiring structure, and the wiring structure is installed on any one of the fasteners near both sides of the cylindrical structure.

[0017] Optionally, the wiring structure includes two connecting members, both of which are provided with screw holes for fixing screws, and the two connecting members are respectively installed on the corresponding two fasteners and respectively connected to the fastening member and the lock.

[0018] Optionally, each of the fasteners is further provided with a conductive adhesive, and the fastener and the lock are both connected to the shielding layer via the conductive adhesive.

[0019] Optionally, the shielding layer is a metal coating provided on the surface of the body; and / or,

[0020] The shielding layer is a metal mesh structure embedded in the body.

[0021] In the technical solution of the present invention, the main body is curled along its width direction so as to be wrapped around the periphery of the automotive wiring harness to be wrapped, and the connecting structure limits the separation of the two side ends of the main body along its width direction, so that the main body is rolled to form the cylindrical structure, and the shielding layer located on the main body can perform electromagnetic shielding on the wrapped wiring harness. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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 only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the main structure of an embodiment of a wire harness shielding duct provided by the present invention;

[0024] Figure 2 A schematic cross-sectional view of an embodiment of a wire harness shielding duct provided by the invention;

[0025] Figure 3 for Figure 1 Schematic diagram of the middle buckle;

[0026] Figure 4 for Figure 2 Schematic diagram of the connection structure between the middle connector and the shielding layer;

[0027] Figure 5 A schematic diagram of the assembly structure of an embodiment of the wire harness shielding duct provided by the present invention.

[0028] Description of Figure Numbers:

[0029] Label name Label name 100 Wire harness shielding duct 311c Second bump 1 Ontology 311d Gusset 2 Shielding 4 Mounting slot 3 Connection structure 5 Fasteners 31 Buckle 6 Lock 311 Fasteners 7 Wiring structure 311a First buckle slot 71 Connectors 311b First bump 8 Conductive adhesive

[0030] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0032] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] At present, the industry often adopts temporary measures such as wrapping aluminum foil or copper foil for the wiring harnesses that need to be shielded after installation. However, this measure is not a solution that can be tooled and mass-produced. The shielding layer often fails due to durability damage problems. In addition, it is often impossible to implement good grounding in this solution, resulting in failure to achieve the ideal shielding effect. Therefore, there are almost no countermeasures for electromagnetic compatibility design in this direction in the industry.

[0035] In view of this, the present invention proposes a wire harness shielding duct. Figures 1 to 5 This is an embodiment of the present invention.

[0036] See also Figure 1 The wiring harness shielding trough 100 includes a main body 1 and a connecting structure 3, wherein a shielding layer 2 is arranged on the main body 1, and the main body 1 can be curled and deformed along its width direction so that the main body 1 is curled into a cylindrical structure to accommodate the wiring harness; the connecting structure 73 is arranged between the two side ends in the width direction of the main body 1 to connect and fix the two side ends in the width direction of the main body 1 when the main body 1 is curled; wherein, when the main body 1 is enclosed to form the cylindrical structure, the shielding layer 2 is used to cover the periphery of the wiring harness for electromagnetic shielding.

[0037] In the technical solution of the present invention, the main body 1 is curled along its width direction so as to be wrapped around the periphery of the automotive wiring harness to be wrapped, and the connecting structure 3 limits the separation of the two side ends of the main body 1 along its width direction, so that the main body 1 is rolled up to form the cylindrical structure, and the shielding layer 2 located on the main body 1 can perform electromagnetic shielding on the wrapped wiring harness.

[0038] It can be understood that the main body 1 is made of a flexible material to achieve a curling setting of the main body 1. Specifically, in the present embodiment, the main body 1 is made of a rubber material or a PVC material, which has a certain flexibility and an insulating property, so as not to affect the shielding effect of the shielding layer 2 arranged thereon. The main body 1 can be directly laid flat, so that it is convenient to directly roll up for storage, and can be cut according to the length of the wire harness to be covered or produced according to wire harnesses of different diameters to meet different wire harness covering installation requirements.

[0039] Furthermore, the connecting structure 3 includes a plurality of fasteners 31 arranged at intervals along the length direction of the main body 1, each of the fasteners 31 includes two fasteners 311, and the two fasteners 311 are arranged on the two side ends in the width direction of the main body 1 and correspond to each other; when the main body 1 is enclosed along its width direction to form the cylindrical structure, the two fasteners 311 are mutually clamped along the width direction of the main body to limit the separation of the two side ends of the main body 1 along the width direction. By arranging a plurality of the fasteners 31 at intervals along the length direction of the main body 1, when the main body 1 is rolled up to form the cylindrical structure, the plurality of fasteners 31 can be fastened and fixed in sequence along the length direction of the main body 1, so as to avoid the generation of gaps between the two side edges along the width direction when the main body 1 is rolled up and wrapped, so as to affect the electromagnetic shielding effect; in addition, the fasteners 31 are divided into two fasteners 311 correspondingly installed on the main body 1 along the width direction, so that when the main body 1 is installed, the two corresponding fasteners 311 can be directly fastened to achieve the connection between the two side ends of the main body 1 along its width direction, which can ensure its fixing reliability while simplifying the installation process.

[0040] See also Figure 2 and Figure 3 A first buckle groove 311a is recessed on the end surface of one of the fasteners 311 along the width direction of the main body 1, and a first protrusion 311b is convexly provided on the end surface of the other fastener 311 along the width direction of the main body 1, and the first buckle groove 311a is adapted to the first protrusion 311b; a second protrusion 311c is installed on one side of the fastener 311 along the length direction of the main body 1, and a buckle plate 311d is installed on the side corresponding to the second protrusion 311c of the other fastener 311, and the buckle plate 311d extends along the width direction of the main body 1 and at least partially protrudes from the corresponding fastener 311, and the buckle plate 311d is adapted to the second protrusion 311c.

[0041] By providing the first protrusion 311b and the first buckle groove 311a, when the corresponding two fasteners 311 are buckled with each other, the first protrusion 311b is embedded in the first buckle groove 311a, so that the two opposite fasteners 311 cannot move relative to each other in the length direction of the main body 1; in addition, by providing the buckle plate 311d and the second protrusion 311c, when the corresponding two fasteners 311 are buckled with each other, the buckle plate 311d moves toward the corresponding first buckle groove 311a along the circumferential direction of the cylindrical structure. The two protrusions 311c are close to each other, and a groove is provided on a side of the second buckle plate 311d close to the corresponding fastener 311. When the two fasteners 311 are buckled together, the second protrusion 311c is embedded in the groove to limit the separation of the two side ends of the body 1 along its width direction along the circumferential direction of the tubular structure. The buckle plate 311d is arranged to cooperate with the second protrusion 311c, and the first protrusion 311b is arranged to cooperate with the first buckle groove 311a to achieve a secure fixation between the two relative fasteners 311.

[0042] Furthermore, the bottom of the first buckle groove 311a is set to be contracted toward the notch. By setting the notch of the first buckle groove 311a to be contracted, when the first protrusion 311b is buckled in the first buckle groove 311a, the first buckle groove 311a and the first protrusion 311b are pressed more tightly, so that the corresponding two buckles 311 are not easy to separate.

[0043] Furthermore, the second protrusion 311c is arranged obliquely toward the corresponding fastener 311 in the width direction of the body 1. By arranging the second protrusion 311c to be arranged obliquely, a stop surface is formed on a side of the second protrusion 311c away from the pinch plate 311d in the width direction of the body 1, and the pinch plate 311d and the second protrusion 311c are in contact with the second protrusion 311c along the inclined surface on the second protrusion 311c during installation, so that the second protrusion 311c can slide into the groove located in the pinch plate 311d, and the pinch plate 311d and the second protrusion 311c are limited to separate by the stop surface, so that the relative resistance between the pinch plate 311d and the second protrusion 311c can be reduced.

[0044] It should be noted that the buckle plate 311d has a certain elastic deformation capability so as to be able to buckle with or cancel the corresponding second protrusion 311c when the two opposite buckles 311 are buckled.

[0045] Furthermore, since the cylindrical structure formed after wrapping the wiring harness has gaps at both ends of the body 1 along its width direction, the gaps will cause electromagnetic field leakage, so please refer to Figure 2, Figure 3 and Figure 4 , one end face of the fastener 311 along the width direction of the body 1 is also concavely provided with a mounting groove 4, a fastening member 5 is installed in the mounting groove 4, and a lock buckle 6 is convexly provided on one end face of the other fastener 311 corresponding to the mounting groove 4, when the two fasteners 311 are matched, the fastening member 5 is fastened with the lock buckle 6; the lock buckle 6 and the fastening member 5 are both connected to the shielding layer 2, and are both made of metal. The lock buckle 6 and the fastening member 5 are respectively installed on the two relatively fastened fasteners 311, and the lock buckle 6 and the fastening member 5 are both made of metal and connected to the shielding layer 2. When the lock buckle 6 and the fastening member 5 are fastened with each other, they play the role of electrical connection, which can be used to close the gap to prevent electromagnetic field leakage.

[0046] Among them, since the lock buckle 6 and the fastener 5 play the role of electrical connection when they are fastened to each other, there is no restriction on the connection method between the lock buckle 6 and the fastener 5, as long as the effect of mutual conduction is achieved, it can be a welding connection, it can be tightened and fixed by bolts and gaskets, or it can be connected by conductive adhesive, etc.

[0047] In addition, the distance between the two adjacent fasteners 31 is less than 25 cm, so that the shielding effectiveness between the two adjacent fasteners 31 can reach at least 300 MHZ. The smaller the distance, the higher the shielding effect reaches the upper frequency limit.

[0048] See also Figure 1 , Figure 4 and Figure 5 The harness shielding trough 100 further includes at least one wiring structure 7, which is installed on any of the fasteners 31 near the two sides of the tubular structure. By installing a wiring structure 7 at one end of the tubular structure along the length direction of the body 1 or installing the wiring structure 7 at both ends, the wiring structure 7 can be used for grounding to perform electromagnetic shielding, and can also connect two adjacent bodies 1 when multiple bodies 1 are wrapped with cables, so that the multiple bodies 1 are connected together to perform electromagnetic shielding.

[0049] Further, the wiring structure 7 includes two connectors 71, and screw holes are provided on the two connectors 71 for fixing screws. The two connectors 71 are respectively installed on the corresponding two fasteners 311, and are respectively connected to the fastener 5 and the lock buckle 6. By providing screw holes on the connector 71, screws are installed in the screw holes, and a metal braid is connected by the screws, so that the metal braid can connect two adjacent bodies 1 for electromagnetic shielding, and can also be connected to the ground wire by the screws for grounding.

[0050] It should be noted that, since the connection between the connecting member 71 and the buckle 5 and the lock 6 is used to achieve electrical connection, that is, the material selected for the connecting member 71 is metal, there is no restriction on the connection method between the connecting member 71 and the corresponding buckle 5 and the lock 6, and it can be connected by conductive adhesive bonding, welding or other connection methods.

[0051] See also Figure 4 , each of the fasteners 311 is also provided with a conductive adhesive 8, and the fastener 5 and the lock buckle 6 are both connected to the shielding layer 2 through the conductive adhesive 8. By providing the conductive adhesive 8 to connect the shielding layer 2 with the fastener 5 and the lock buckle 6, the fastener 5 and the lock buckle 6 are flexibly connected to avoid the electromagnetic shielding failure caused by the breakage of the connection point between the fastener 5, the lock buckle 6 and the shielding layer 2 during the bending of the body 1.

[0052] Further, the shielding layer 2 is a metal coating disposed on the surface of the body 1; and / or, the shielding layer 2 is a metal mesh structure embedded in the body 1. The shielding layer 2 may be a metal coating coated on the inside or outside of the body 1, or a metal mesh structure embedded in the body 1, or a combination of the two. Specifically, in the present embodiment, the shielding layer 2 is a metal mesh structure embedded in the body 1. Compared with the metal coating disposed on the surface of the body 1, the metal mesh structure is not easily affected by external factors, so as to be scratched and fall off, affecting the shielding effect. At the same time, the mesh structure can be set to avoid separation from the rubber material of the body 1 when the body 1 is bent, thereby causing cracking.

[0053] It should be noted that there is no limitation on the material of the shielding layer 2 , the lock buckle 6 and the fastener 5 , and they may be aluminum foil, copper foil, etc. In addition, the main body 1 may be formed by injection molding of the shielding layer 2 to improve the durability and reliability of the main body 1 .

[0054] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A wire harness shielding duct, characterized in that: include: A body, on which a shielding layer is arranged, and the body can be curled and deformed along its width direction so that the body is curled into a cylindrical structure to accommodate the wiring harness; as well as, A connecting structure is provided between two side ends of the body in the width direction, so as to connect and fix the two side ends of the body in the width direction when the body is curled; Wherein, when the body is enclosed to form the cylindrical structure, the shielding layer is used to cover the periphery of the wiring harness for electromagnetic shielding; The connection structure includes a plurality of buckles arranged at intervals along the length direction of the body, each of the buckles includes two buckles, and the two buckles are arranged on both side ends of the body in the width direction and correspond to each other; When the body is enclosed along its width direction to form the cylindrical structure, the two fasteners are engaged with each other to limit the separation of the two side ends of the body along the width direction; One end surface of the fastener along the width direction of the body is also concavely provided with an installation groove, a fastening piece is installed in the installation groove, and the other fastener is convexly provided with a lock buckle on one end surface corresponding to the installation groove, and when the two fasteners are matched, the fastening piece is buckled with the lock buckle; The lock buckle and the buckle connector are both connected to the shielding layer and are made of metal; The harness shielding duct further comprises at least one wiring structure, and the wiring structure is mounted on any one of the fasteners near both sides of the cylindrical structure; The wiring structure includes two connecting members, both of which are provided with screw holes for fixing screws, and the two connecting members are respectively installed on the corresponding two fasteners and are respectively connected to the fastening member and the lock buckle; The screw is connected with a metal braided belt, and the screw is connected to a ground wire for electromagnetic shielding. When a plurality of the bodies are wrapped with cables, two adjacent bodies are connected by the metal braided belt to achieve electromagnetic shielding.

2. The wire harness shielding duct according to claim 1, characterized in that: A first buckle groove is concavely provided on the end surface of one of the buckles along the width direction of the body, and a first convex block is convexly provided on the end surface of the other buckle along the width direction of the body, and the first buckle groove is matched with the first convex block; One of the fasteners is provided with a second protrusion on one side along the length direction of the main body, and the other fastener is provided with a gusset plate on a side corresponding to the second protrusion. The gusset plate extends along the width direction of the main body and at least partially protrudes from the corresponding fastener, and the gusset plate is adapted to the second protrusion.

3. The wire harness shielding duct according to claim 2, characterized in that: The bottom of the first buckle groove is arranged to be contracted toward the groove opening.

4. The wire harness shielding duct according to claim 2, characterized in that: The second protrusion is arranged obliquely toward the corresponding fastener in the width direction of the body.

5. The wire harness shielding duct according to claim 1, characterized in that: Each of the fasteners is also provided with a conductive adhesive, and the fastening member and the lock buckle are both connected to the shielding layer through the conductive adhesive.

6. The wire harness shielding duct according to claim 1, characterized in that: The shielding layer is a metal coating disposed on the surface of the body; and / or, The shielding layer is a metal mesh structure embedded in the body.

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