New energy high life thin wall low pressure automobile cable

Abstract

The application relates to a new energy high-service-life thin-wall low-voltage automobile cable, and belongs to the technical field of automobile cables, which comprises a cable body, a plurality of independent air bags are sleeved on the cable body, the air bags are arranged along the length direction of the cable body, adjacent air bags are arranged in abutment with each other, the cable body is located on the axis of the air bags in the inflated state of the air bags, and the air bags are closely sleeved on the cable body in the initial state of the air bags. The application has the effect of improving the wear resistance of the cable.

Description

A new energy high-life thin-walled low-voltage automotive cable Technical Field

[0001] This application relates to the field of automotive cable technology, and in particular to a new energy high-life thin-walled low-voltage automotive cable. Background Technology

[0002] Automotive wiring harnesses are essential components of automotive electrical systems. With the widespread application of automotive electrical components, continuous advancements in automotive manufacturing technology, and the emergence of practical needs, the quantity and variety of automotive wiring harnesses used in automobiles are increasing, and their usage standards are being further refined to provide a better user experience. Automotive wiring harnesses are primarily thin-walled wires, which reduce the weight and size of the conductors to fit within the vehicle's interior installation space.

[0003] Currently, a patent document with authorization publication number CN217544202U discloses a low-voltage thin-walled automotive cable, including a cable tube. The cable tube has a filling layer and an insulation layer inside. The insulation layer has a single-wire copper rod inside. The cable tube includes a protective sleeve and an outer protective layer. The outer protective layer is disposed on the outer surface of the protective sleeve. The outer surface of the protective sleeve has multiple evenly distributed arc-shaped protrusions. The outer surface of the outer protective layer has multiple evenly distributed arc-shaped grooves. The arc-shaped protrusions on the outer surface of the protective sleeve match the arc-shaped grooves on the outer surface of the outer protective layer. Through the protective sleeve and the outer protective layer, a protective structure can be provided on the outer surface of the cable. When impacted, the arc-shaped hemispherical protrusions on the outer surface first contact the impactor. Because they are arc-shaped hemispherical protrusions, their surfaces are smooth, and in some cases, the impactor can slide off the surface.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: During the operation of a car, the vibration and shaking of the vehicle body cause wear and tear on the outer surface of the cable and the vehicle body structure. Since the internal cables of a car are relatively small in weight and volume, their wear resistance is generally poor, which leads to cable damage. Summary of the Invention

[0005] To improve the wear resistance of cables, this application provides a new energy high-life thin-walled low-voltage automotive cable.

[0006] This application provides a new energy high-life thin-walled low-voltage automotive cable with the following technical solution:

[0007] A new energy high-life thin-walled low-voltage automotive cable includes a cable body, on which multiple independent air bladders are sleeved. The multiple air bladders are arranged along the length of the cable body, and adjacent air bladders are arranged to abut against each other. When the air bladders are inflated, the cable body is located on the axis of the air bladders. When the air bladders are in the initial state, the air bladders are tightly sleeved on the cable body.

[0008] By adopting the above technical solution, during use, the airbag directly contacts the vehicle body, rather than the cable itself contacting the vehicle body structure, thereby reducing the possibility of direct cable wear and improving the cable's abrasion resistance. The airbag is an independent structure; when one airbag is damaged, the airbags on both sides of the damaged airbag rest on the vehicle body structure, and the cable itself at the damaged airbag location is relatively separated from the vehicle body structure, further reducing the possibility of contact friction between the damaged airbag and the vehicle body structure, thus improving the cable's abrasion resistance. After the airbag is damaged due to friction with the vehicle body structure, its volume gradually shrinks, and the airbag tightly fits onto the cable body. At this point, the airbag acts as a protective sleeve on the cable body, separating the cable from the vehicle body structure, further reducing the possibility of friction between the cable and the vehicle body structure, thus improving the cable's abrasion resistance. Simultaneously, the airbag provides a certain buffering effect on the cable body, reducing the possibility of cable damage due to pressure.

[0009] Optionally, along the length of the cable body, the diameters of the odd-numbered airbags are the same, the diameters of the even-numbered airbags are the same, and the diameters of the odd-numbered airbags are larger than the diameters of the even-numbered airbags.

[0010] By adopting the above technical solution, the diameters of adjacent airbags on the cable body are inconsistent, so that half of the airbags on the cable body are in contact with the vehicle structure, while the other half are separated from the vehicle body structure. When the airbags are damaged by friction with the vehicle body structure, the airbags of the same diameter are supported by the vehicle body structure to separate the cable from the vehicle body structure, thereby improving the cable's wear resistance. When most of the airbags of the same diameter are damaged or completely damaged, the airbags of smaller diameter are in contact with the vehicle body structure to separate the vehicle body structure from the cable, thereby improving the cable's wear resistance. When all the airbags are damaged, the damaged airbags are fitted onto the cable body, separating the cable body from the vehicle body structure to reduce the possibility of cable body wear, thereby improving the cable's wear resistance.

[0011] Optionally, when the airbag is inflated, the airbag is rotatably mounted on the cable body, and the rotation axis of the airbag is parallel to the axial direction of the cable body.

[0012] By adopting the above technical solution, the airbag is rotated on the cable body. When there is relative movement between the airbag and the cable body, the sliding friction between the airbag and the vehicle body structure is converted into rolling friction, thereby reducing the friction between the airbag and the vehicle body structure, reducing the possibility of airbag damage, thus improving the service life of the airbag and the wear resistance of the cable.

[0013] Optionally, multiple support rods are fixedly installed on the cable body. The support rods are located between the airbag and the cable body. The support rods are arranged along the length direction and circumferential direction of the cable body, and the support rods arranged along the length direction of the cable body are connected to each other by ball twisting.

[0014] By adopting the above technical solution, after the airbag wears out, the airbag is sleeved on the cable body. Under the action of the support rod, the support rod forms a support skeleton in the circumference of the cable, so that the damaged airbag forms a ring-shaped protective sleeve, and the cable body is located at the axis of the ring-shaped protective sleeve. At this time, the support rod and the airbag together form a protective sleeve to protect the cable body, thereby improving the wear resistance of the cable. Adjacent support rods are connected by ball joints, so that the cable body has a certain curvature, so that the cable body can be installed in the vehicle body.

[0015] Optionally, the airbag is provided with a receiving groove for accommodating the support rod. The receiving groove is connected end to end in a ring shape. When the airbag is in its initial state, the side wall and bottom wall of the receiving groove are attached to the support rod. When the airbag is inflated, the support rod is housed in the receiving groove with a gap between it and the receiving groove. The airbag is rotatably mounted on the cable body on both sides of the opening of the receiving groove.

[0016] By adopting the above technical solution, under the action of the receiving groove, after the airbag inflates, there is a certain gap between the support rod and the airbag, which reduces the influence of the support rod on the rotation of the airbag. This allows the airbag to rotate and reduce the friction between the airbag and the vehicle body structure when the cable slides relative to the vehicle body structure, thereby improving the wear resistance of the cable.

[0017] Optionally, an installation ring is fixedly provided on the cable body, and slip rings are fixedly provided on both sides of the airbag located at the opening of the receiving groove, with the slip rings rotatably sleeved on the installation ring.

[0018] By adopting the above technical solution, the airbag can rotate relative to the cable body under the action of the mounting ring and the slip ring, thereby reducing the friction between the airbag and the vehicle body structure.

[0019] Optionally, the support rod is hollow.

[0020] By adopting the above technical solution, the support rod is hollow, which reduces the weight of the support rod and thus the weight of the cable in use, making it easier to install the cable into the vehicle body.

[0021] Optionally, the support rod is a telescopic structure, comprising a sleeve rod and a slide rod slidably sleeved within the sleeve rod. The sleeve rod is fixedly mounted on the cable body, and the end of the slide rod opposite the sleeve rod is provided with a ball head. The end of the sleeve rod opposite the ball head is provided with a spherical groove, and the ball head is movably disposed within the spherical groove.

[0022] By adopting the above technical solution, when the cable is bent and arranged, the length of the support rod facing the cable bend is reduced, and the length of the support rod away from the cable bend is increased, which makes it easier for the cable to be installed in the vehicle body structure according to the design position. Furthermore, the support rod is a telescopic structure, which reduces the possibility of the cable body bending significantly at both ends of the support rod and extends the service life of the cable.

[0023] Optionally, the airbag sidewall is provided with an air core, and the air core is connected to the airbag.

[0024] By adopting the above technical solution, gas can be easily added into the airbag under the action of the air core, so as to improve the wear resistance of the cable. The air core is located on the side wall of the airbag, which reduces the influence of the air core on the rotation of the airbag, thereby making it easier to reduce the wear between the airbag and the vehicle body structure.

[0025] Optionally, the air core is embedded in the side wall of the airbag, the air inlet of the air core is located on the same plane as the side wall of the airbag, and a countersunk groove is provided on the airbag and around the air core, with the air inlet of the air core located in the countersunk groove.

[0026] By adopting the above technical solution, the air inlet of the air core and the side wall of the airbag are located on the same plane, which reduces the possibility of the air core hitting the adjacent airbag and reduces the possibility of the air core damaging the airbag; under the action of the countersunk groove, it is convenient to connect the inflation device and the air core.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. During use, the airbags of the aforementioned cables come into direct contact with the vehicle body, rather than the cable itself contacting the vehicle structure. This reduces the likelihood of direct cable wear and improves the cable's abrasion resistance. The airbags are independent structures; when one airbag is damaged, the airbags on either side of the damaged airbag rest on the vehicle structure, keeping the cable itself relatively separated from the vehicle structure at the damaged airbag location. This further reduces the possibility of contact friction between the damaged airbag and the vehicle structure, thus improving the cable's abrasion resistance. After the airbags are damaged due to friction with the vehicle structure, their volume gradually decreases, and they tightly fit around the cable body. At this point, the airbags act as a protective sleeve, separating the cable from the vehicle structure, further reducing the possibility of friction and improving the cable's abrasion resistance. Simultaneously, the airbags provide a buffering effect on the cable body, reducing the likelihood of damage caused by pressure.

[0029] 2. The inconsistent diameters of adjacent airbags on the cable body result in half of the airbags contacting the vehicle structure while the other half separates from it. When the airbags rub against the vehicle structure and are damaged, the airbags of the same diameter rest on the vehicle structure to separate the cable from the structure, thus improving the cable's abrasion resistance. When most or all airbags of the same diameter are damaged, the smaller diameter airbags then contact the vehicle structure to separate the cable from the structure, further improving the cable's abrasion resistance. When all airbags are damaged, the damaged airbags fit over the cable body, separating it from the vehicle structure and reducing the likelihood of cable wear, thereby improving the cable's abrasion resistance. Attached Figure Description

[0030] Figure 1 is a schematic diagram of the overall structure of a new energy high-life thin-walled low-voltage automotive cable according to an embodiment of this application;

[0031] Figure 2 is a cross-sectional view of a new energy high-life thin-walled low-voltage automotive cable according to an embodiment of this application;

[0032] Figure 3 is an enlarged schematic diagram of part A in Figure 2;

[0033] Figure 4 is an enlarged schematic diagram of part B in Figure 3.

[0034] Explanation of reference numerals in the attached drawings: 1. Cable body; 11. Battery core; 12. Protective sleeve; 2. Air bladder; 3. Support rod; 31. Sleeve rod; 32. Sliding rod; 4. Ball head; 5. Spherical groove; 6. Receiving groove; 7. Mounting ring; 8. Slip ring; 9. Air core; 10. Countersunk groove. Detailed Implementation

[0035] The present application will be further described in detail below with reference to Figures 1-4.

[0036] This application discloses a new energy high-life thin-walled low-voltage automotive cable. Referring to Figures 1 and 2, the new energy high-life thin-walled low-voltage automotive cable includes a cable body 1, which includes a battery core 11 and a protective sleeve 12 for connecting the battery core 11. In this application embodiment, multiple independent air bladders 2 are sleeved on the cable body 1. During the inflation process, the air bladders 2 are cylindrical, and the multiple air bladders 2 are arranged along the length direction of the cable body 1. The ends of adjacent air bladders 2 abut against each other. When the air bladders 2 are inflated, the cable body 1 is located on the axis of the air bladders 2. When the air bladders 2 are in the initial state, the air bladders 2 are tightly sleeved on the cable body 1.

[0037] After the airbag 2 is attached to the cable body 1, the airbag 2 separates the cable body 1 from the vehicle body structure, thereby reducing the possibility of contact between the cable body 1 and the vehicle body structure, and thus improving the wear resistance of the cable. At the same time, the airbag 2 has a good tendency to recover its deformation. When the airbag 2 is damaged, the airbag 2 will wrap the cable body 1 inside the airbag 2, thereby separating the cable body 1 from the vehicle body structure, and further improving the wear resistance of the cable.

[0038] Referring to Figures 1 and 2, to further improve the protective effect of the airbag 2 on the cable, along the length of the cable body 1, the odd-numbered airbags 2 have the same diameter, and the even-numbered airbags 2 have the same diameter, while the odd-numbered airbags 2 have a larger diameter than the even-numbered airbags 2. The difference in diameter between the odd-numbered and even-numbered airbags 2 causes the airbags 2 with larger diameters to contact the vehicle body structure, while the airbags 2 with smaller diameters are separated from the vehicle body structure. Because the airbags 2 with larger diameters are in contact with the vehicle body structure, they are damaged first. At this time, the airbags 2 with smaller diameters are in contact with the vehicle body structure, causing the cable to separate from the vehicle body structure, which further improves the wear resistance of the cable.

[0039] Referring to Figure 3, to reduce the possibility of airbag 2 being damaged and to ensure the protective effect of airbag 2 on the cable, when airbag 2 is inflated, airbag 2 is rotatably mounted on cable body 1. In this embodiment, airbag 2 is cylindrical, and the inner wall of airbag 2 is attached to the protective sleeve 12 of cable body 1. The rotation axis of airbag 2 is parallel to the axial direction of the cable body 1. When airbag 2 is rotatably connected to cable body 1, and cable body 1 slides relative to each other, airbag 2 and cable body 1 are relative, causing airbag 2 to roll on the vehicle body structure, thereby reducing the degree of friction between airbag 2 and vehicle body structure and reducing the possibility of airbag 2 being damaged.

[0040] Referring to Figure 3, when the airbag 2 is damaged, in order to improve the protective effect of the damaged airbag 2 on the cable body 1, multiple support rods 3 are fixedly installed on the cable body 1. In this embodiment, the support rods 3 are hollow and located between the airbag 2 and the cable body 1. The support rods 3 are arranged along the length direction and circumference of the cable body 1. In this embodiment, there are four support rods 3 arranged along the circumference of the cable body 1, and the included angle between the four support rods 3 is 90°. When the damaged airbag 2 is sleeved on the cable body 1, the four support rods 3 form a support skeleton for supporting the airbag 2, so that there is a certain gap between the inside of the airbag 2 and the cable body 1, so as to reduce the possibility of direct contact between the cable body 1 and the vehicle body structure, thereby improving the protective effect of the airbag 2 on the cable body 1, and thus improving the wear resistance of the cable body 1.

[0041] Referring to Figure 3, in order to facilitate the cable arrangement along the designed position, the support rods 3 arranged along the length direction of the cable body 1 are connected by ball joints. In this embodiment, one end of the support rod 3 is provided with a ball head 4, and the end of the support rod 3 away from the ball head 4 is provided with a spherical groove 5 for sleeved ball head 4; adjacent support rods 3 are ball jointed with each other, so that adjacent support rods 3 can rotate relative to each other within a certain angle range, so that the angle between adjacent support rods 3 is suitable for the bending angle of the cable body 1.

[0042] Referring to Figure 3, to reduce the impact of the support rod 3 on cable bending during the bending process, the support rod 3 is a telescopic structure. The support rod 3 includes a sleeve rod 31 and a sliding rod 32 slidably sleeved in the sleeve rod 31. The sleeve rod 31 is fixedly mounted on the cable body 1. The ball head 4 is located at the end of the sliding rod 32 away from the sleeve rod 31. The spherical groove 5 is opened at the end of the sleeve rod 31 away from the ball head 4. The ball head 4 is movably mounted in the spherical groove 5. When the cable is bent and arranged, the support rods 3 on both sides of the cable body 1 axis are compressed or stretched accordingly, thereby ensuring that the cable is arranged according to the design.

[0043] Referring to Figure 3, to reduce the influence of the support rod 3 on the rotation of the airbag 2, the airbag 2 is provided with a receiving groove 6 for accommodating the support rod 3. The opening of the receiving groove 6 faces the cable body 1, and the receiving groove 6 is connected end to end in a ring shape. When the airbag 2 is in its initial state, the side wall and bottom wall of the receiving groove 6 are attached to the support rod 3. When the airbag 2 is in an inflated state, the support rod 3 is housed in the receiving groove 6 with a gap between it and the receiving groove 6. The airbag 2 is rotatably mounted on the cable body 1 on both sides of the opening of the receiving groove 6. When the airbag 2 is in an inflated state, because the support rod 3 is housed in the receiving groove 6, the support rod 3 and the airbag 2 are in a separated state, which facilitates the rotation of the airbag 2.

[0044] Referring to Figure 3, in this embodiment, a mounting ring 7 is fixedly provided on the cable body 1, and slip rings 8 are fixedly provided on both sides of the opening of the receiving groove 6 for the airbag 2. The slip rings 8 are rotatably sleeved on the mounting ring 7. Both the mounting ring 7 and the slip rings 8 are hard rings. Furthermore, a lubricating layer is coated between the mounting ring 7 and the slip rings 8. When the airbag 2 rotates relative to the vehicle body structure, the airbag 2 drives the slip rings 8 and the mounting rings 7 to rotate relative to each other, so that the airbag 2 and the cable body 1 can rotate relative to each other.

[0045] Referring to Figures 3 and 4, an air core 9 is provided on the airbag 2 to facilitate adjustment of the airbag 2 volume. The air core 9 is connected to the airbag 2. An external inflation device (inflation cylinder) is connected to the air core 9, and then gas is added into the airbag 2 to adjust the volume of the airbag 2. The operation is simple and convenient.

[0046] Referring to Figures 3 and 4, the influence of the air core 9 on the rotation of the airbag 2 is reduced. The air core 9 is set on the side wall (end wall of the airbag 2) of the airbag 2.

[0047] Referring to Figures 3 and 4, further, in order to reduce the possibility of the air core 9 damaging the adjacent airbag 2, the air core 9 is embedded in the side wall of the airbag 2, the air inlet of the air core 9 is located on the same plane as the side wall of the airbag 2, and a countersunk groove 10 is provided on the airbag 2 and around the air core 9, with the air inlet of the air core 9 located in the countersunk groove 10.

[0048] The implementation principle of a new energy high-life thin-walled low-voltage automotive cable in this application embodiment is as follows:

[0049] Before installing the cable on the vehicle body structure, first install the support rod 3 on the cable body 1, then attach the airbag 2 to the cable body 1, and then rotate the airbag 2 and add lubricant between the mounting ring 7 and the slip ring 8.

[0050] Then the cable body 1 is fixed in the vehicle body structure. When the cable body 1 slides relative to the vehicle body structure, the airbag 2 will convert the relative sliding into relative rotation between the airbag 2 and the vehicle body structure, which reduces the possibility of wear of the airbag 2.

[0051] Meanwhile, when the airbag 2 in contact with the vehicle body structure is damaged, the adjacent airbag 2 of the damaged airbag 2 supports the cable, so that the damaged airbag 2 is in a suspended state, reducing the possibility of the cable body 1 coming into contact with the vehicle body structure.

[0052] The damaged airbag 2 is wrapped around the cable body 1, separating the cable body 1 from the vehicle body structure, thereby improving the wear resistance of the cable body 1.

[0053] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A new energy high-life thin-walled low-voltage automotive cable, comprising a cable body (1), characterized in that: Multiple independent air bladders (2) are sleeved on the cable body (1). The multiple air bladders (2) are arranged along the length direction of the cable body (1). Adjacent air bladders (2) are abutted against each other. When the air bladders (2) are inflated, the cable body (1) is located on the axis of the air bladders (2). When the air bladders (2) are in the initial state, the air bladders (2) are tightly sleeved on the cable body (1). Along the length direction of the cable body (1), the odd-numbered air bladders (2) have the same diameter, the even-numbered air bladders (2) have the same diameter, and the odd-numbered air bladders (2) have a larger diameter than the even-numbered air bladders (2).

2. The new energy high-life thin-walled low-voltage automotive cable according to claim 1, characterized in that: When the airbag (2) is inflated, the airbag (2) is rotatably mounted on the cable body (1), and the rotation axis of the airbag (2) is parallel to the axial direction of the cable body (1).

3. The new energy high-life thin-walled low-voltage automotive cable according to claim 1, characterized in that: Multiple support rods (3) are fixedly installed on the cable body (1). The support rods (3) are located between the airbag (2) and the cable body (1). The support rods (3) are arranged along the length direction of the cable body (1) and the circumference of the cable body (1). The support rods (3) arranged along the length direction of the cable body (1) are ball-twisted together.

4. The new energy high-life thin-walled low-voltage automotive cable according to claim 3, characterized in that: The airbag (2) is provided with a receiving groove (6) for accommodating the support rod (3). The receiving groove (6) is connected end to end in a ring shape. When the airbag (2) is in the initial state, the side wall and bottom wall of the receiving groove (6) are attached to the support rod (3). When the airbag (2) is in the inflated state, the support rod (3) is housed in the receiving groove (6) and there is a gap between it and the receiving groove (6). The airbag (2) is rotatably mounted on the cable body (1) on both sides of the opening of the receiving groove (6).

5. The new energy high-life thin-walled low-voltage automotive cable according to claim 4, characterized in that: An installation ring (7) is fixedly installed on the cable body (1), and slip rings (8) are fixedly installed on both sides of the opening of the receiving groove (6) of the airbag (2), and the slip rings (8) are rotatably sleeved on the installation ring (7).

6. The new energy high-life thin-walled low-voltage automotive cable according to claim 3, characterized in that: The support rod (3) is hollow.

7. A new energy high-life thin-walled low-voltage automotive cable according to claim 3, characterized in that: The support rod (3) is a telescopic structure. The support rod (3) includes a sleeve rod (31) and a slide rod (32) that is slidably sleeved in the sleeve rod (31). The sleeve rod (31) is fixedly mounted on the cable body (1). The end of the slide rod (32) facing away from the sleeve rod (31) is provided with a ball head (4). The end of the sleeve rod (31) opposite to the ball head (4) is provided with a spherical groove (5). The ball head (4) is movably mounted in the spherical groove (5).

8. The new energy high-life thin-walled low-voltage automotive cable according to claim 1, characterized in that: The airbag (2) has an air core (9) on its side wall, and the air core (9) is connected to the airbag (2).

9. A new energy high-life thin-walled low-voltage automotive cable according to claim 8, characterized in that: The air core (9) is embedded in the side wall of the air bag (2). The air inlet of the air core (9) is on the same plane as the side wall of the air bag (2). A countersunk groove (10) is provided on the air bag (2) and around the air core (9). The air inlet of the air core (9) is located in the countersunk groove (10).

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