A high-voltage connection cable for electric vehicles

Abstract

The present invention belongs to the field of cable technology, and in particular relates to a cable for high-voltage connection inside an electric vehicle, comprising two cable bodies, the cable bodies comprising a first insulating layer, the inner wall of the first insulating layer being fixedly connected to a protective mesh layer, the inner wall of the protective mesh layer being fixedly connected to a waterproof layer, the inner wall of the waterproof layer being fixedly connected to a second insulating layer, and the second insulating layer being provided with a plurality of copper-core cables. The present invention can, after connecting two automotive cables, place the two automotive cables side by side and then wrap them around the cables, thereby enhancing the longitudinal pulling force of the two automotive cables, avoiding the problem of large gaps between the two automotive cables being easily formed after being pulled by external forces, thereby affecting the stability of the automotive cable connection, and can ensure the sealing of the connection by means of the tape wrapped around the connection, thereby making the connection of the two cables more tightly connected, and ensuring the smooth flow of the circuit.

Description

Technical Field

[0001] The invention belongs to the technical field of cables, and in particular relates to a high-voltage connection cable for electric vehicles. Background Art

[0002] High-voltage connection cables for automotive interiors are power cables primarily used for high-voltage transmission within vehicles. Flexible cables for communication power supply must not only be flexible enough for easy installation in confined spaces and similar situations, but also exhibit ideal flame retardancy to meet high fire protection requirements.

[0003] Patent No. CN104517678B proposes a cable for internal high-voltage connection of electric vehicles, including a conductor, a wrapping tape wrapped around the conductor, and an insulating layer wrapped around the wrapping tape. The insulating layer is made of TPE or TPU. It is characterized in that the conductor is made of a plurality of aluminum alloy wires twisted together, and the wrapping tape is composed of an inner tape and an outer tape located outside the inner tape. The inner tape is spirally wound around the conductor in a single direction with a first pitch, and the outer tape is spirally wound around the inner tape in a single direction with a second pitch. The inner tape and the outer tape are wound in opposite directions, and the first pitch is equal to the second pitch. The first pitch is 3 to 6 times the width of the inner tape. The material of the outer tape is the same as that of the inner tape. The present invention has the following main beneficial effects: softer, easier to bend, easier to construct, lighter in weight, lower in cost, more resistant to high voltage, large current, high temperature, and electrical interference; better flame retardant effect, better bending resistance, and safer to use.

[0004] When two existing automotive cables are used, they are usually connected by plugging connectors. When the two automotive cables are pulled, the connectors of the two automotive cables are easily separated and a gap is formed, which affects the stability of the automotive cable connection. In addition, some dust and moisture in the air can easily enter between the two automotive cables, affecting the normal use of the two automotive cables.

[0005] To this end, we propose a cable for high-voltage connection inside electric vehicles to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to address the deficiencies of the prior art. The present invention provides a cable for high-voltage connection inside an electric vehicle. The cable has the ability to, after connecting two automobile cables, place the two automobile cables side by side and then wrap them around each other, thereby enhancing the longitudinal pulling force of the two automobile cables and avoiding the problem that a large gap easily appears between the two automobile cables after being pulled by external force, thereby affecting the connection stability of the automobile cables. In addition, the tape wrapped around the connection ensures the sealing of the connection and can make the connection of the two cables more tightly connected, ensuring the smooth flow of the circuit. The cable solves the problem that when two automobile cables are in use, they are usually connected by plugging in connectors. When the two automobile cables are pulled, the connectors of the two automobile cables are easily separated and a gap appears, thereby affecting the stability of the automobile cable connection. In addition, some dust and moisture in the air can easily enter between the two automobile cables, affecting the normal use of the two automobile cables.

[0007] In order to achieve the above purpose, after the two automobile cables are connected, the two automobile cables can be placed side by side and then twisted and connected, thereby enhancing the longitudinal pulling force of the two automobile cables, avoiding the problem that large gaps are easily formed when the two automobile cables are pulled by external forces, thereby affecting the stability of the automobile cable connection, and the tape wrapped around the connection can ensure the sealing of the connection and make the connection of the two cables more tightly connected, thereby ensuring the smooth flow of the circuit. The present invention provides the following technical solutions: A cable for high-voltage connection inside an electric vehicle, comprising two cable bodies, the cable body comprising a first insulating layer, the inner wall of the first insulating layer is fixedly connected to a protective mesh layer, the inner wall of the protective mesh layer is fixedly connected to a waterproof layer, the inner wall of the waterproof layer is fixedly connected to a second insulating layer, and the second Multiple copper-core cables are provided in the insulating layer, and two of the cable bodies are placed side by side. The two cable bodies are covered with the same protective sleeve, and the two cable bodies are fixed in the protective sleeve by insulating tape. The left and right sides of the protective sleeve are fixedly connected with an insert, and the same insert frame is inserted in the two inserts. The inner wall of the insert is provided with a positioning groove and the inner wall of the positioning groove is fixedly connected with a positioning plate. The side walls of the positioning plate and the opposite sides of the insert frame are fixedly connected with a plurality of mutually matching teeth, the side walls of the positioning plate are fixedly connected with a pull rod, and the end of the pull rod away from the positioning plate is fixedly connected with a pull plate, and the side walls of the pull plate and the opposite sides of the insert frame are fixedly connected with the same first spring, and the side walls of the insert frame are fixedly connected with a conductive sheet through an adjustment mechanism, and the ends of the two cable bodies close to each other are fixedly connected with a conductive block.

[0008] Preferably, the adjustment mechanism includes a threaded barrel rotatably connected to the side wall of the insertion frame, a threaded rod is threadedly sleeved on the inner thread of the threaded barrel, the upper end of the threaded rod is fixedly connected to a movable plate, the side wall of the movable plate is fixedly connected to the top plate through a second spring, and the two conductive blocks are fixedly connected to the side walls of the top plate.

[0009] Preferably, the lower end of the threaded cylinder is fixedly connected to a connecting column, a rotating cylinder is provided on the outer surface of the connecting column, the rotating cylinder is fixedly connected to the connecting column through a third spring, the inner wall of the rotating cylinder is fixedly connected to a cross rod, a cross cavity is provided on the rod wall of the connecting column, a connecting ring is fixedly provided on the outer wall of the rotating cylinder, two positioning pins are symmetrically fixedly connected to the lower side wall of the insertion frame, and a plurality of positioning holes are provided on the side wall of the connecting ring.

[0010] Preferably, a partition plate is fixedly connected to the inner wall of the protective sleeve, and two rubber rings are fixedly connected between the partition plate and the protective sleeve.

[0011] Preferably, the side wall of the insertion tube is fixedly connected to a mounting bracket, the side wall of the mounting bracket is rotatably connected to a control rod, the end of the control rod close to the insertion tube is fixedly connected to a blocking plate, the side wall of the pull plate is fixedly connected to a bent plate, the end of the control rod away from the blocking plate is fixedly connected to a swivel seat, the inner wall of the swivel seat is provided with a plurality of blocking grooves and the inner wall of the blocking groove is fixedly connected to a blocking column via a fourth spring, and the side wall of the mounting bracket is provided with a plurality of grooves matching the blocking columns.

[0012] Preferably, the inner wall of the insertion frame is fixedly connected to a limiting sliding rod, and the rod wall of the threaded rod is provided with a limiting sliding groove that matches the limiting sliding rod.

[0013] Preferably, the side wall of the movable plate is fixedly connected to two guide cylinders, and the side wall of the top plate is fixedly connected to two guide rods.

[0014] Compared with existing technologies, the advantages of a high-voltage connection cable for electric vehicles are:

[0015] 1. Through the arrangement of the cable body, copper core cable, protective sleeve, insert barrel, insert frame, positioning plate, clamping teeth, pull rod, pull plate, conductive sheet and conductive block, after the two automotive cables are connected, the two automotive cables can be placed side by side and then twisted to connect, thereby enhancing the longitudinal pulling force of the two automotive cables, avoiding the problem of large gaps between the two automotive cables after being pulled by external force, thereby affecting the stability of the automotive cable connection, and the sealing of the connection can be ensured by the tape wrapped around the connection.

[0016] 2. By setting the conductive sheet, conductive block, threaded barrel, threaded rod, movable plate, top plate, connecting column, rotating barrel, cross bar, cross cavity and positioning pin, the connection between the two cables can be made tighter, ensuring the smooth flow of the circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of a high-voltage connection cable for an electric vehicle provided by the present invention;

[0018] Figure 2 yes Figure 1 A magnified schematic diagram of part A;

[0019] Figure 3 yes Figure 2 An enlarged schematic diagram of part B;

[0020] Figure 4 The present invention provides a schematic diagram of the internal structure of a cable body for high-voltage connection cables in electric vehicles.

[0021] In the figure: 1. Cable body; 2. Copper core cable; 3. Protective sleeve; 4. Insertion tube; 5. Insertion frame; 6. Positioning plate; 7. Gear; 8. Pull rod; 9. Pull plate; 10. Conductive sheet; 11. Conductive block; 12. Threaded tube; 13. Threaded rod; 14. Moving plate; 15. Top plate; 16. Connecting column; 17. Rotating tube; 18. Cross bar; 19. Cross cavity; 20. Positioning pin; 21. Partition plate; 22. Rubber ring; 23. Mounting frame; 24. Control rod; 25. Blocking plate; 26. Bending plate; 27. Rotating seat; 28. Blocking column; 29. ​​Limiting slide bar; 30. Guide tube; 31. Guide rod. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0023] like Figure 1-4As shown, a high-voltage connection cable for electric vehicles includes two cable bodies 1. The cable body 1 includes a first insulating layer. The inner wall of the first insulating layer is fixedly connected to a protective mesh layer. The inner wall of the protective mesh layer is fixedly connected to a waterproof layer. The inner wall of the waterproof layer is fixedly connected to a second insulating layer. A plurality of copper core cables 2 are arranged in the second insulating layer. The two cable bodies 1 are placed side by side. The two cable bodies 1 are covered with the same protective sleeve 3. The two cable bodies 1 are fixed in the protective sleeve 3 by insulating tape. The left and right sides of the protective sleeve 3 are fixedly connected to the plug 4. The two plugs 4 is plugged into the same insertion frame 5, the inner wall of the insertion tube 4 is provided with a positioning groove and the inner wall of the positioning groove is fixedly connected to a positioning plate 6, the positioning plate 6 and the side wall on the opposite side of the insertion frame 5 are fixedly connected with a plurality of mutually matching latches 7, the side wall of the positioning plate 6 is fixedly connected to a pull rod 8, the end of the pull rod 8 away from the positioning plate 6 is fixedly connected to a pull plate 9, the pull plate 9 and the side wall on the opposite side of the insertion frame 5 are fixedly connected to the same first spring, the side wall of the insertion frame 5 is fixedly connected to a conductive sheet 10 through an adjusting mechanism, and the ends of the two cable bodies 1 close to each other are fixedly connected to a conductive block 11.

[0024] The adjustment mechanism includes a threaded barrel 12 rotatably connected to the side wall of the insertion frame 5, a threaded rod 13 is sleeved on the internal thread of the threaded barrel 12, the upper end of the threaded rod 13 is fixedly connected to a movable plate 14, the side wall of the movable plate 14 is fixedly connected to a top plate 15 through a second spring, and the two conductive blocks 11 are fixedly connected to the side wall of the top plate 15.

[0025] The lower end of the threaded cylinder 12 is fixedly connected to a connecting column 16, and a rotating cylinder 17 is provided on the outer sleeve of the connecting column 16. The rotating cylinder 17 is fixedly connected to the connecting column 16 through a third spring. The inner wall of the rotating cylinder 17 is fixedly connected to a cross bar 18, and a cross cavity 19 is provided on the rod wall of the connecting column 16. The outer wall of the rotating cylinder 17 is fixedly sleeved with a connecting ring. Two positioning pins 20 are symmetrically fixedly connected to the lower side wall of the insertion frame 5, and a plurality of positioning holes are provided on the side wall of the connecting ring.

[0026] A dividing plate 21 is fixedly connected to the inner wall of the protective sleeve 3 , and two rubber rings 22 are fixedly connected between the dividing plate 21 and the protective sleeve 3 , thereby increasing the connection stability between the cable and the protective sleeve 3 .

[0027] The side wall of the insert tube 4 is fixedly connected to a mounting bracket 23, and the side wall of the mounting bracket 23 is rotatably connected to a control rod 24. The end of the control rod 24 close to the insert tube 4 is fixedly connected to a blocking plate 25, and the side wall of the pull plate 9 is fixedly connected to a bent plate 26. The end of the control rod 24 away from the blocking plate 25 is fixedly connected to a swivel seat 27. The inner wall of the swivel seat 27 is provided with a plurality of blocking grooves and the inner wall of the blocking groove is fixedly connected to a blocking column 28 through a fourth spring. The side wall of the mounting bracket 23 is provided with a plurality of grooves that match the blocking column 28, which improves the stability of the placement of the control rod 24.

[0028] The inner wall of the insertion frame 5 is fixedly connected to a limit slide rod 29 , and the rod wall of the threaded rod 13 is provided with a limit slide groove that matches the limit slide rod 29 , which can prevent the threaded rod 13 from rotating and enable the threaded rod 13 to move up and down only in the vertical direction.

[0029] Two guide cylinders 30 are fixedly connected to the side walls of the movable plate 14 , and two guide rods 31 are fixedly connected to the side walls of the top plate 15 , thereby improving the stability of the movable plate 14 in moving up and down.

[0030] The operating principle of the present invention is now explained as follows: two cable bodies 1 are inserted into the protective sleeve 3, and then the insertion frame 5 is inserted into the insertion tube 4. The insertion frame 5 is fixed by the mutual cooperation of the latch teeth 7 between the insertion frame 5 and the positioning plate 6. Then, the rotating drum 17 is pulled to cause the drum 17 to drive the threaded drum 12 to rotate, so that the threaded drum 12 drives the threaded rod 13 to move upward, and the threaded rod 13 drives the movable plate 14, the top plate 15 and the conductive sheet 10 to move upward, so that the conductive sheet 10 contacts the two conductive blocks 11, thereby connecting the two cable bodies 1.

[0031] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A high-voltage connection cable for an electric vehicle, comprising two cable bodies (1), characterized in that: The cable body (1) comprises a first insulating layer, the inner wall of the first insulating layer is fixedly connected to a protective mesh layer, the inner wall of the protective mesh layer is fixedly connected to a waterproof layer, the inner wall of the waterproof layer is fixedly connected to a second insulating layer, a plurality of copper core cables (2) are arranged in the second insulating layer, two of the cable bodies (1) are placed side by side, the two cable bodies (1) are provided with the same protective sleeve (3) on their outer shells, the two cable bodies (1) are fixed in the protective sleeve (3) by insulating tape, the left and right sides of the protective sleeve (3) are fixedly connected to an insert (4), the two inserts (4) are plugged with the same insert frame (5), the insert ( 4) is provided with a positioning groove on the inner wall thereof and a positioning plate (6) is fixedly connected to the inner wall of the positioning groove, the positioning plate (6) and the side wall on the opposite side of the insertion frame (5) are fixedly connected with a plurality of mutually matching latches (7), the side wall of the positioning plate (6) is fixedly connected with a pull rod (8), the end of the pull rod (8) away from the positioning plate (6) is fixedly connected with a pull plate (9), the pull plate (9) and the side wall on the opposite side of the insertion frame (5) are fixedly connected with the same first spring, the side wall of the insertion frame (5) is fixedly connected with a conductive sheet (10) through an adjustment mechanism, and the ends of the two cable bodies (1) close to each other are fixedly connected with a conductive block (11); The side wall of the insert cylinder (4) is fixedly connected to a mounting frame (23), the side wall of the mounting frame (23) is rotatably connected to a control rod (24), the end of the control rod (24) close to the insert cylinder (4) is fixedly connected to a blocking plate (25), the side wall of the pull plate (9) is fixedly connected to a bent plate (26), the end of the control rod (24) away from the blocking plate (25) is fixedly connected to a rotating seat (27), the inner wall of the rotating seat (27) is provided with a plurality of blocking grooves, and the inner wall of the blocking groove is fixedly connected to a blocking column (28) through a fourth spring, and the side wall of the mounting frame (23) is provided with a plurality of grooves matching the blocking column (28).

2. The electric vehicle internal high-voltage connection cable according to claim 1, characterized in that: The adjustment mechanism comprises a threaded barrel (12) rotatably connected to the side wall of the insertion frame (5); a threaded rod (13) is sleeved on the internal thread of the threaded barrel (12); the upper end of the threaded rod (13) is fixedly connected to a movable plate (14); the side wall of the movable plate (14) is fixedly connected to a top plate (15) via a second spring; and the side walls of the two conductive blocks (11) and the top plate (15) are fixedly connected.

3. The electric vehicle internal high-voltage connection cable according to claim 2, characterized in that: The lower end of the threaded cylinder (12) is fixedly connected to a connecting column (16), and a rotating cylinder (17) is provided on the outer surface of the connecting column (16). The rotating cylinder (17) is fixedly connected to the connecting column (16) through a third spring. The inner wall of the rotating cylinder (17) is fixedly connected to a cross bar (18), and a cross cavity (19) is provided on the rod wall of the connecting column (16). A connecting ring is fixedly provided on the outer wall of the rotating cylinder (17). Two positioning pins (20) are symmetrically fixedly connected to the lower side wall of the insertion frame (5), and a plurality of positioning holes are provided on the side wall of the connecting ring.

4. The electric vehicle internal high-voltage connection cable according to claim 1, characterized in that: A partition plate (21) is fixedly connected to the inner wall of the protective sleeve (3), and two rubber rings (22) are fixedly connected between the partition plate (21) and the protective sleeve (3).

5. The electric vehicle internal high-voltage connection cable according to claim 2, characterized in that: The inner wall of the insert frame (5) is fixedly connected to a limiting slide rod (29), and the rod wall of the threaded rod (13) is provided with a limiting slide groove that matches the limiting slide rod (29).

6. The electric vehicle internal high-voltage connection cable according to claim 2, characterized in that: Two guide cylinders (30) are fixedly connected to the side wall of the movable plate (14), and two guide rods (31) are fixedly connected to the side wall of the top plate (15).

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