Anti-corrosion high-temperature-resistant charging pile customized flat cable with shielding function

Abstract

The invention relates to the technical field of cables, in particular to an anti-corrosion and high-temperature-resistant charging pile customized flat cable with a shielding function, which comprises a positioning frame, a plurality of cable cores distributed side by side at equal intervals are arranged in the middle of the positioning frame in a penetrating manner, and shielding layers wrap the outer sides of the cable cores; a plurality of ventilation holes which are linearly distributed at equal intervals are formed in the middle of the positioning frame in a penetrating mode, the ventilation holes are located between every two adjacent cable cores, and heat conduction fins are installed on the side face of the positioning frame; the beneficial effects are that the plurality of cable cores are arranged between the upper positioning frame and the lower positioning frame side by side in a penetrating manner at equal intervals, the flame-retardant layer is wound outside the plurality of cable cores to improve the overall flame-retardant and high-temperature-resistant performance, the protective layer is wrapped outside the flame-retardant layer to improve the overall corrosion-resistant performance, and the heat-conducting fins are mounted on the side surfaces of the positioning frames, so that the overall corrosion-resistant performance of the cable is improved. The surface of the protective layer is provided with ventilation openings corresponding to the ventilation holes, so that the overall heat dissipation effect is improved, and the service life of the whole flat cable in a severe environment is prolonged.

Description

Technical Field

[0001] The present invention relates to the field of cable technology, and in particular to a customized charging pile cable that is corrosion-resistant, high-temperature-resistant and has a shielding function. Background Art

[0002] Charging pile cables refer to cables or wiring harnesses used to connect the inside of electric vehicle charging piles or between charging piles and electric vehicle charging interfaces. Charging pile cables are mainly responsible for transmitting power and signals to ensure that charging piles can charge electric vehicles safely and efficiently.

[0003] The Chinese invention with publication number CN102610302A discloses a parallel-wire cable, which has more stable electrical performance than ordinary twisted-pair cables, that is, smaller impedance difference and smaller delay difference.

[0004] At present, for some electric vehicle charging piles located outdoors, the charging cables used are exposed to the air for a long time, and the environment is worse than that of indoors. The charging pile cables themselves are not resistant to corrosion, high temperature, and shielding, and are restricted by the environment, resulting in a short service life. To this end, the present invention proposes a customized charging pile cable with anti-corrosion and high temperature resistance and shielding function to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a customized charging pile cable that is corrosion-resistant and high-temperature-resistant with a shielding function, so as to solve the problem that the charging pile cable is affected by the environment and has a short service life as mentioned in the above background technology.

[0006] To achieve the above purpose, the present invention provides the following technical solution: a customized charging pile cable with anti-corrosion and high temperature resistance and shielding function, comprising: A positioning frame, wherein a plurality of cable cores are arranged in parallel at equal intervals in the middle of the positioning frame, a shielding layer is wrapped around the outer side of the cable core, a flame retardant layer is wound around the outer side of the plurality of cable cores, and a protective layer is wrapped around the outer side of the flame retardant layer; The positioning frame forms an angle of sixty degrees with the length direction of the cable core, and a plurality of ventilation holes distributed linearly at equal intervals are opened through the middle of the positioning frame, and the ventilation holes are located between two adjacent cable cores. Heat-conducting fins are installed on the side of the positioning frame, and ventilation openings corresponding to the plurality of ventilation holes are opened through the surface of the protective layer.

[0007] Preferably, the positioning frames are arranged in groups of two, upper and lower, and are symmetrically distributed with each other. The two positioning frames are attached to each other and spliced ​​and fixed. A positioning groove for the cable core to pass through is provided between the two positioning frames.

[0008] Preferably, a plurality of groups of the positioning frames are provided, and the plurality of groups of the positioning frames are distributed at equal intervals along the length direction of the cable core.

[0009] Preferably, a weight-reducing groove is provided on the side of the positioning frame, a heat-conducting base plate is fixedly installed on the inner wall of the weight-reducing groove, the heat-conducting fins are fixedly installed on the surface of the heat-conducting base plate, a plurality of heat-conducting fins are provided and distributed at equal intervals, the edges of the heat-conducting fins are bent to form locking buckles, and the upper and lower heat-conducting fins are kept fastened to each other by the locking buckles.

[0010] Preferably, a compression groove is provided on the surface of the positioning frame, and the opening ends of the plurality of ventilation holes are all located at the bottom of the compression groove. A matching pressure plate is provided in the inner cavity of the compression groove, and the pressure plate presses the flame retardant layer at its corresponding position into the bottom of the compression groove.

[0011] Preferably, an anti-dropout slot is provided on the inner wall of the ventilation hole, and the anti-dropout slot is in an "L" shape. A plurality of clamping rings which are linearly distributed at equal intervals are provided on the surface of the pressure plate. The clamping rings correspond to the ventilation holes, and an elastic buckle is fixedly connected to the surface of one side of the clamping ring. The elastic buckle is inserted into the inner cavity of the anti-dropout slot and fastened and locked.

[0012] Preferably, a positioning ring is fixedly connected to the other side surface of the clamping ring, the positioning ring is inserted into the inner cavity of the vent, the diameter of the positioning ring is smaller than the inner diameter of the vent, the end face of the positioning ring is flush with the surface of the protective layer, and the surface of the clamping ring is coated with adhesive and bonded and fixed to the inner wall of the protective layer.

[0013] Preferably, the flame retardant layer is formed into a flat structure by spirally winding acetate tape, the width of the acetate tape is smaller than the distance between two adjacent ventilation holes, a plurality of acetate tapes are provided and are wound in parallel with each other at the same time, and the positioning frame is located in the gap between two adjacent acetate tapes.

[0014] Preferably, the shielding layer is made of aluminum foil material, and the protective layer is made of rubber material.

[0015] Preferably, both ends of the cable core are provided with connectors, and both ends of the plurality of cable cores are electrically connected to the two connectors respectively.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention arranges multiple cable cores at equal intervals and side by side between two upper and lower positioning frames, winds a flame retardant layer on the outside of the multiple cable cores to improve the overall flame retardant and high temperature resistance, wraps a protective layer on the outside of the flame retardant layer to improve the overall corrosion resistance, wraps a shielding layer on the outside of the cable core monomer to improve the shielding performance, vertically penetrates the surface of the positioning frame to form ventilation holes between two adjacent cable cores, installs heat-conducting fins on the side of the positioning frame, and opens ventilation holes corresponding to the ventilation holes on the surface of the protective layer to improve the overall heat dissipation effect and extend the service life of the entire cable in harsh environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic top view of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the structural side section at AA in the middle; Figure 3 This is a schematic diagram of the internal structure of the protective layer of the present invention; Figure 4 It is a three-dimensional schematic diagram of the positioning frame and the cable core structure of the present invention; Figure 5 It is an exploded schematic diagram of the positioning frame and the pressing plate structure of the present invention; Figure 6 It is an exploded schematic diagram of the local structure of the positioning frame and the pressing plate of the present invention; Figure 7 It is a half-section schematic diagram of the local structure of the positioning frame of the present invention; Figure 8 For the present invention Figure 6 Enlarged schematic diagram of the structure at point B in the middle.

[0018] In the figure: 1. cable core; 2. shielding layer; 3. flame retardant layer; 4. protective layer; 41. vent; 5. positioning frame; 51. ventilation hole; 52. positioning groove; 53. clamping groove; 54. anti-dropping slot; 55. weight reduction groove; 56. thermal conductive bottom plate; 57. thermal conductive fin; 58. locking buckle; 6. pressure plate; 61. clamping ring; 62. elastic buckle; 63. positioning ring; 7. joint. DETAILED DESCRIPTION

[0019] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit 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.

[0020] See also Figures 1 to 8 , the present invention provides a technical solution: Embodiment 1, a customized charging pile cable with corrosion resistance, high temperature resistance and shielding function, includes: a positioning frame 5.

[0021] Specifically, a plurality of cable cores 1 are arranged in parallel and at equal intervals in the middle of the positioning frame 5, such as Figure 4As shown, the positioning frame 5 can position the multiple cable cores 1 so that there is a spacing between two adjacent cable cores 1 and the spacing is constant. The multiple cable cores 1 do not contact each other, which makes it easy to dissipate heat, thereby reducing the overall internal temperature. The outer side of the cable core 1 is wrapped with a shielding layer 2 to prevent the cable core 1 from being disturbed by the external environment. The outer sides of the multiple cable cores 1 are commonly wrapped with a flame retardant layer 3, and the outer side of the flame retardant layer 3 is wrapped with a protective layer 4. The setting of the flame retardant layer 3 can improve the overall flame retardancy and high temperature resistance of the cable row. The protective layer 4 itself has good anti-corrosion performance, which can improve the service life of the entire cable row in harsh external environments, while reducing the safety hazards caused by the cable core 1 exposed to the outside.

[0022] Secondly, the positioning frame 5 forms an angle of sixty degrees with the length direction of the cable core 1. A plurality of ventilation holes 51 with equal spacing and linear distribution are opened through the middle of the positioning frame 5. The ventilation holes 51 are located between two adjacent cable cores 1. The setting of the ventilation holes 51 can reduce the weight of the positioning frame 5 itself, and at the same time make the upper and lower sides of the cable row interconnected. When the air flows, the air can easily take away the heat on the cable row. In rainy weather, rainwater can flow through the inner cavity of the ventilation holes 51, which can also accelerate the dissipation of heat, thereby ensuring that the cable row has a good heat dissipation effect. In addition, heat-conducting fins 57 are installed on the side of the positioning frame 5 for heat exchange of heat in the gap between two adjacent cable cores 1. Ventilation holes 41 corresponding to the plurality of ventilation holes 51 are opened through the surface of the protective layer 4 to ensure that the inner cavity of the ventilation holes 51 can be connected with the outside world to facilitate the discharge of heat.

[0023] In order to facilitate the installation of the positioning frame 5 and the cable core 1, the positioning frame 5 of the present application is set as a group of two upper and lower positioning frames 5 and is symmetrically distributed with each other. The two positioning frames 5 are attached to each other and spliced ​​and fixed. A positioning groove 52 for the cable core 1 to pass through is opened between the two positioning frames 5. Figure 4 and Figure 5 As shown, when the cable core 1 is being installed, the two positioning frames 5 are in a separated state, and the two positioning frames 5 are respectively inserted between the multiple cable cores 1 from the upper and lower sides, thereby ensuring that the installation between the positioning frames 5 and the cable cores 1 in this cable row is more convenient.

[0024] In order to adapt to different types of cable arrays, the present application is provided with multiple groups of positioning frames 5, and the multiple groups of positioning frames 5 are evenly spaced along the length direction of the cable core 1. The distance between two adjacent groups of positioning frames 5 needs to be adjusted according to actual usage requirements. For cable arrays with larger cable core 1 diameters and higher heat generation, the distance between two adjacent positioning frames 5 is smaller. Conversely, when the cable core 1 has a smaller diameter and lower heat generation, the distance between two adjacent positioning frames 5 can be larger.

[0025] In order to splice and fix the upper and lower positioning frames 5, the present application also has a weight-reducing groove 55 opened on the side of the positioning frame 5, such as Figure 6 As shown, the weight-reducing groove 55 is provided to reduce the overall weight of the positioning frame 5. A heat-conducting bottom plate 56 is fixedly installed on the inner wall of the weight-reducing groove 55. The heat-conducting bottom plate 56 is close to the inner wall of the ventilation hole 51 and is used for heat exchange with the air in the inner cavity of the ventilation hole 51. The heat-conducting fins 57 are fixedly installed on the surface of the heat-conducting bottom plate 56. A plurality of heat-conducting fins 57 are provided and distributed at equal intervals. The plurality of heat-conducting fins 57 can maximize the internal heat exchange effect of the line row. The edges of the heat-conducting fins 57 are bent to form locking buckles 58. The upper and lower heat-conducting fins 57 are kept mutually fastened by the locking buckles 58. Figure 6 and Figure 8 As shown, when the two positioning frames 5 are close to each other, the upper and lower heat-conducting fins 57 are close to and in contact with each other. At this time, the upper and lower corresponding locking buckles 58 can be squeezed, buckled, and locked to each other, so that the upper and lower positioning frames 5 can be connected and positioned to avoid the upper and lower positioning frames 5 from separating from each other.

[0026] In order to ensure the stability of the position of the flame retardant layer 3, the present application also has a pressing groove 53 on the surface of the positioning frame 5, and the opening ends of the multiple ventilation holes 51 are all located at the bottom of the pressing groove 53. The inner cavity of the pressing groove 53 is provided with a matching pressing plate 6, and the pressing plate 6 presses the flame retardant layer 3 at its corresponding position into the bottom of the pressing groove 53. When the acetate tape is wrapped around multiple cable cores 1 to form the flame retardant layer 3, a gap is left between two adjacent acetate tapes, and the gap just corresponds to the positioning frame 5, that is, the ventilation hole 51 will not be blocked by the flame retardant layer 3 and affect the air flow. The edge of the acetate tape can be pressed into the bottom of the pressing groove 53 by the pressing plate 6 to position the acetate tape, thereby improving the stability of the flame retardant layer 3 formed after winding and avoiding displacement of the flame retardant layer 3. Since the acetate tape itself is sticky, the acetate tape can also position the positioning frame 5 after being bonded to the positioning frame 5 to avoid displacement of the positioning frame 5 along the length direction of the cable core 1. In addition, the bonding of the acetate tape and the positioning frame 5 can also achieve a sealing effect to a certain extent, avoiding water vapor or rainwater from penetrating between two adjacent cable cores 1.

[0027] In order to fix the pressure plate 6 and the positioning frame 5, the present application also has an anti-slip slot 54 on the inner wall of the ventilation hole 51, and the anti-slip slot 54 is "L"-shaped. The surface of the pressure plate 6 is provided with a plurality of clamping rings 61 distributed linearly at equal intervals. The clamping rings 61 correspond to the ventilation holes 51, and one side surface of the clamping ring 61 is fixedly connected with an elastic buckle 62, which is inserted into the inner cavity of the anti-slip slot 54 and fastened and locked. Figure 6 and Figure 7It can be seen that when the pressure plate 6 approaches the positioning frame 5 and is pressed into the bottom of the clamping groove 53, the elastic clip 62 can be inserted into the inner cavity of the anti-slip slot 54. The end of the elastic clip 62 is an existing well-known wedge-shaped structure, which can be buckled in the inner cavity of the anti-slip slot 54, thereby stably connecting the pressure plate 6 and the positioning frame 5 to prevent the two from separating from each other.

[0028] In order to install the protective layer 4, the present application also has a positioning ring 63 fixedly connected to the other side surface of the clamping ring 61, the positioning ring 63 is inserted into the inner cavity of the vent 41, the diameter of the positioning ring 63 is smaller than the inner diameter of the vent 41, and when the protective layer 4 wraps the flame retardant layer 3, the positioning ring 63 cooperates with the vent 41 to avoid the vent 41 and the vent hole 51 from being misaligned, resulting in the vent 51 being unable to communicate with the outside world, and the end face of the positioning ring 63 is flush with the surface of the protective layer 4, that is, after the positioning ring 63 is stuck in the inner cavity of the vent 41 , which can play a role in positioning the protective layer 4 and prevent the protective layer 4 from positional displacement. At the same time, the positioning ring 63 will not protrude to the outside of the protective layer 4. The surface of the clamping ring 61 is coated with an adhesive and is bonded and fixed to the inner wall of the protective layer 4. When the protective layer 4 wraps the flame retardant layer 3, the inner wall of the protective layer 4 can remain in contact with the surface of the clamping ring 61. After the adhesive solidifies, the surface of the clamping ring 61 can remain in contact and fixed to the inner wall of the protective layer 4, thereby improving the sealing performance and preventing rainwater and water vapor from penetrating. Rainwater and water vapor will only flow in the inner cavity of the ventilation hole 51.

[0029] In order to avoid blocking the opening of the ventilation hole 51 when the flame retardant layer 3 is wound, the flame retardant layer 3 of the present application is spirally wound with acetate tape to form a flat structure. The width of the acetate tape is smaller than the distance between two adjacent ventilation holes 51. A plurality of acetate tapes are arranged and wound in parallel with each other at the same time. The positioning frame 5 is located in the gap between two adjacent acetate tapes. Figure 3 It can be seen that when the flame retardant layers 3 on the upper and lower sides of the cable core 1 are wound, the inclination directions are exactly opposite, and the flame retardant layers 3 on the upper and lower sides of the cable core 1 cross each other to form an "X" shape. The multiple ventilation holes 41 on the upper side of the protective layer 4 can be located in the gap between two adjacent acetate tapes along the length direction of the acetate tape, while the multiple ventilation holes 41 on the lower side of the protective layer 4 are located in the gap between multiple acetate tapes along the width direction of the acetate tape. Therefore, the ventilation holes 51 on the positioning frame 5 can be staggered with the acetate tape to avoid the open ends of the ventilation holes 51 being blocked.

[0030] In order to connect to the charging pile, the shielding layer 2 of the present application is made of aluminum foil material, and the protective layer 4 is made of rubber material, which can respectively provide shielding and corrosion protection for the cable core 1. Connectors 7 are provided at both ends of the cable core 1, and the two ends of multiple cable cores 1 are electrically connected to the two connectors 7 respectively. The connectors 7 are provided for plug-in connection with the charging pile.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A customized charging pile cable with anti-corrosion and high temperature resistance and shielding function, characterized by: include: A positioning frame (5), wherein a plurality of cable cores (1) are arranged in parallel and at equal intervals in the middle of the positioning frame (5), the outer side of the cable core (1) is wrapped with a shielding layer (2), the outer sides of the plurality of cable cores (1) are wrapped with a flame retardant layer (3), and the outer side of the flame retardant layer (3) is wrapped with a protective layer (4); The positioning frame (5) forms an angle of sixty degrees with the length direction of the cable core (1); a plurality of ventilation holes (51) distributed linearly at equal intervals are provided through the middle of the positioning frame (5); the ventilation holes (51) are located between two adjacent cable cores (1); heat-conducting fins (57) are installed on the side of the positioning frame (5); and ventilation openings (41) corresponding to the plurality of ventilation holes (51) are provided through the surface of the protective layer (4).

2. According to claim 1, a customized charging pile cable with anti-corrosion and high temperature resistance and shielding function is characterized by: The positioning frames (5) are arranged in a group of two, upper and lower, and are symmetrically distributed with each other. The two positioning frames (5) are attached to each other and spliced ​​and fixed. A positioning groove (52) for the cable core (1) to pass through is provided between the two positioning frames (5).

3. According to claim 2, a customized charging pile cable with anti-corrosion and high temperature resistance and shielding function is characterized by: A plurality of groups of the positioning frames (5) are provided, and the plurality of groups of the positioning frames (5) are distributed at equal intervals along the length direction of the cable core (1).

4. According to claim 2, a customized charging pile cable with anti-corrosion and high temperature resistance and shielding function is characterized by: A weight-reducing groove (55) is provided on the side of the positioning frame (5), a heat-conducting base plate (56) is fixedly mounted on the inner wall of the weight-reducing groove (55), the heat-conducting fins (57) are fixedly mounted on the surface of the heat-conducting base plate (56), a plurality of the heat-conducting fins (57) are provided and are distributed at equal intervals, the edges of the heat-conducting fins (57) are bent to form locking buckles (58), and the upper and lower heat-conducting fins (57) are kept mutually fastened by the locking buckles (58).

5. According to claim 1, a customized charging pile cable with anti-corrosion and high temperature resistance and shielding function, characterized in that: A pressing groove (53) is provided on the surface of the positioning frame (5), and the opening ends of the plurality of ventilation holes (51) are all located at the bottom of the pressing groove (53). A pressing plate (6) matching the pressing groove (53) is provided in the inner cavity of the pressing groove (53), and the pressing plate (6) presses the flame retardant layer (3) at a corresponding position thereof into the bottom of the pressing groove (53).

6. According to claim 5, a customized charging pile cable with anti-corrosion and high temperature resistance and shielding function is characterized by: The inner wall of the ventilation hole (51) is provided with an anti-slipping slot (54), the anti-slipping slot (54) being in an "L" shape. The surface of the pressure plate (6) is provided with a plurality of clamping rings (61) which are linearly distributed at equal intervals. The clamping rings (61) correspond to the ventilation hole (51), and a side surface of the clamping ring (61) is fixedly connected with an elastic buckle (62), and the elastic buckle (62) is inserted into the inner cavity of the anti-slipping slot (54) and buckled and locked thereto.

7. According to claim 6, a customized charging pile cable with anti-corrosion and high temperature resistance and shielding function, characterized in that: A positioning ring (63) is fixedly connected to the other side surface of the clamping ring (61). The positioning ring (63) is inserted into the inner cavity of the vent (41). The diameter of the positioning ring (63) is smaller than the inner diameter of the vent (41). The end surface of the positioning ring (63) is flush with the surface of the protective layer (4). The surface of the clamping ring (61) is coated with an adhesive and is bonded and fixed to the inner wall of the protective layer (4).

8. According to claim 7, a customized charging pile cable with anti-corrosion and high temperature resistance and shielding function is characterized by: The flame retardant layer (3) is formed into a flat structure by spirally winding acetate tape, the width of the acetate tape being smaller than the distance between two adjacent ventilation holes (51), a plurality of acetate tapes are provided and are wound in parallel with each other at the same time, and the positioning frame (5) is located in the gap between two adjacent acetate tapes.

9. According to claim 1, a customized charging pile cable with anti-corrosion and high temperature resistance and shielding function, characterized in that: The shielding layer (2) is made of an aluminum foil material, and the protective layer (4) is made of a rubber material.

10. The anti-corrosion and high temperature resistant customized charging pile cable with shielding function according to claim 1, characterized in that: Both ends of the cable core (1) are provided with joints (7), and both ends of a plurality of cable cores (1) are electrically connected to the two joints (7) respectively.

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