Tension-crack-resistant fireproof waterproof electric vehicle insulation cable

Abstract

The utility model discloses an anti-crack fireproof waterproof electric vehicle insulation cable comprising a wire core, the outer side of the wire core is provided with an insulation layer and a waterproof layer, the outer side of the waterproof layer is provided with an anti-crack mechanism, the anti-crack mechanism comprises an outer protection cover, a rubber ring, a fixing block and a hole, the outer protection cover is arranged on the outer side of the waterproof layer, and the rubber ring is arranged on the outer side of the waterproof layer. A rubber ring is connected to the outer side of the outer protection cover in a clamped mode, and a fixing block is installed on the outer side of the rubber ring. According to the tension-crack-resistant fireproof and waterproof type electric vehicle insulation cable, through arrangement of the anti-crack mechanism, it can be guaranteed that the cable is not prone to cracks in the pulling process, the anti-crack performance of the cable is greatly improved, meanwhile, through arrangement of the high-performance mechanism, the overall fireproof performance, waterproof performance, abrasion resistance and the like of the cable are improved, the overall performance of the cable is greatly improved, and the service life of the cable is prolonged. And in addition, a convenient connecting mechanism is arranged, so that the two cables can be quickly mounted and connected, the connecting efficiency is improved, and the connecting stability is also ensured.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle cable technology, specifically a fire-resistant and waterproof electric vehicle insulating cable that is resistant to tensile cracking. Background Technology

[0002] Electric vehicle insulated cables refer to cables used in electric vehicles. They are typically made of copper core multi-strand soft conductors and polyvinyl chloride insulation material. They are made of special materials and designed to meet the high voltage, high current and high power requirements of electric vehicles. They are widely used in various parts of electric vehicles, including battery management systems, motor control, charging interfaces, etc. Currently, there are many types of electric vehicle insulated cables available on the market, but some shortcomings still exist.

[0003] Existing electric vehicle insulated cables still have some problems in terms of crack resistance and other aspects. For example, Chinese utility model patent CN209641388U discloses a special control cable for electric vehicles, including a conductor lead groove, a copper sheath, an isolation sleeve, and a PVC outer protective sleeve. The conductor lead groove is surrounded by a semiconductor shielding tape installed with connecting adhesive, and the semiconductor shielding tape is surrounded by a copper sheath. PP rope is filled between the copper sheath and the semiconductor shielding tape. An isolation sleeve is also surrounded by the copper sheath, with ceramic plates between the isolation sleeve and the copper sheath, and alumina between the ceramic plates. An inorganic insulating inner protective sleeve is outside the isolation sleeve, and a PVC outer protective sleeve is installed around the inorganic insulating inner protective sleeve with mounting adhesive. This special control cable for electric vehicles is powerful, scientifically designed, easy to operate, stable, and highly reliable, making it suitable for widespread application. However, this device still has some problems in terms of cable installation and connection, and cable performance. Therefore, we propose a fire-resistant and waterproof electric vehicle insulated cable with tensile crack resistance to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this utility model is to provide a fire-resistant and waterproof electric vehicle insulated cable that is resistant to tensile cracking, so as to solve the problems mentioned in the background art regarding the current electric vehicle insulated cables. Based on existing solutions and actual production and processing, there are still some problems with the current cable's crack resistance, cable connection and installation, and overall cable performance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fire-resistant and waterproof electric vehicle insulating cable with tensile crack resistance, comprising:

[0006] The wire core has an insulating layer installed on its outer side;

[0007] Also includes:

[0008] A waterproof layer is provided with a crack-resistant mechanism on its outer side. The crack-resistant mechanism includes an outer protective cover, a rubber ring, a fixing block, and a hole. The outer protective cover is provided on the outer side of the waterproof layer, and a rubber ring is engaged with the outer side of the outer protective cover. A fixing block is installed on the outer side of the rubber ring, and a hole is opened inside the fixing block.

[0009] The outer protective cover is provided with a convenient connection mechanism, which includes a first connecting ring, a connecting block, a slot, a pin, a second connecting ring, a slot, and a bolt. The outer side of the wire core is provided with a first connecting ring, and the inside of the first connecting ring is provided with slots at equal intervals. The slots are engaged with pins, and the pins are fixedly installed at equal intervals on the outside of the second connecting ring.

[0010] Preferably, a limiting bracket is fixedly connected to the outer side of the insulating layer, and the limiting bracket is disposed on the inner side of the partition bracket.

[0011] Preferably, the dividing supports are evenly spaced inside the polypropylene mesh belt, and an inner protective cover is provided on the outside of the polypropylene mesh belt, and a shielding layer is installed on the outside of the inner protective cover.

[0012] Preferably, a fire-resistant layer is provided on the outside of the shielding layer, and a waterproof layer is provided on the outside of the fire-resistant layer.

[0013] Preferably, a connecting block is installed above the middle part of both the second connecting ring and the first connecting ring, and the internal threads of the connecting block are connected with bolts.

[0014] Preferably, the outer side of the bolt is slidably connected with a retaining block.

[0015] Preferably, the locking block engages with the connecting block installed above the middle of the second connecting ring.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the fire-resistant and waterproof electric vehicle insulated cable with tensile crack resistance is designed with a crack-resistant mechanism to ensure that the cable is not prone to cracking during the pulling process, which greatly improves the crack resistance of the cable. At the same time, the high-performance mechanism improves the overall fire resistance, waterproofness and wear resistance of the cable, which greatly improves the overall performance of the cable. In addition, the convenient connection mechanism allows two cables to be quickly installed and connected, which improves the connection efficiency and ensures the stability of the connection.

[0017] 1. The cable is equipped with wire cores, insulation layers, limiting brackets, and separator brackets. The wire cores are located at the innermost part of the cable, while the insulation layer is set on the outside of the wire cores to provide insulation. A polypropylene mesh tape is set on the outside of the insulation layer and fills the innermost part of the cable. The polypropylene mesh tape has the advantages of flexibility, tensile strength, and anti-deviation of the wire cores. Separating brackets are set at equal intervals inside the polypropylene mesh tape to separate each wire core and prevent them from tangling together. Limiting brackets are set on the inside of the separating brackets and are fixed to the insulation layer to ensure that the position of the insulation layer does not shift.

[0018] 2. The cable is equipped with an inner protective cover, a shielding layer, a fire-resistant layer, and a waterproof layer. The inner protective cover is set on the outside of the polypropylene mesh tape. The inner protective cover protects the inside of the cable and has an insulating function, which can prevent current loss and mutual interference between electrical equipment. The shielding layer is set on the outside of the inner protective cover. Its main function is to shield interference signals and prevent interference from external electromagnetic fields. The fire-resistant layer is set on the outside of the shielding layer, which makes the cable fire-resistant. The waterproof layer is set on the outside of the fire-resistant layer, which has a waterproof function. The outer protective cover is set on the outside of the waterproof layer. The outer protective cover protects the cable from external mechanical or chemical corrosion and prevents the cable from being damaged due to movement.

[0019] 3. It is equipped with rubber rings, fixing blocks and holes. Rubber rings can be snapped onto the outside of the outer protective cover. The rubber rings can be installed at equal intervals on the outside of the outer protective cover. Fixing blocks are fixedly installed on the outside of the rubber rings. The fixing blocks have holes inside. When the cable is laid, iron wires can be inserted into the holes. The iron wires can be used to bind and fix the cable, thus fixing the position of the cable and preventing the cable from moving back and forth and breaking.

[0020] 4. It is equipped with a first connecting ring, a connecting block, a slot, and a locking pin. The first connecting ring is installed on the outside of the outer protective cover. The slots are equally spaced inside the first connecting ring. The slots can engage with the locking pins installed equally spaced on the outside of the second connecting ring to engage the two connectors of the cable. In addition, connecting blocks are installed on the outside of both the first and second connecting rings. Bolts can be inserted into the connecting blocks for tightening and fixing, which can further enhance the stability of the cable connector.

[0021] 5. A locking block is provided, through which bolts can be inserted into the locking block. When the bolts are inserted into the connecting block and tightened, the locking block can engage with the connecting block installed above the second connecting ring, thereby enhancing the stability of the bolt fixing. Attached Figure Description

[0022] Figure 1This is a perspective structural diagram of the present invention;

[0023] Figure 2 This is a perspective view of the connection structure of the rubber ring, outer protective cover, and fixing block of this utility model;

[0024] Figure 3 This is a perspective view of the connection structure of the connecting block, the locking pin, and the second connecting ring of this utility model.

[0025] Figure 4 This is a perspective view of the connection structure of the wire core, insulation layer and limiting bracket of this utility model;

[0026] Figure 5 This is a perspective view of the connection structure of the first connecting ring, connecting block, and locking block of this utility model;

[0027] Figure 6 This is a perspective view of the connection structure of the first connecting ring, slot, and block of this utility model.

[0028] In the diagram: 1. Core wire; 2. Insulation layer; 3. Limiting bracket; 4. Separating bracket; 5. Polypropylene mesh tape; 6. Inner protective cover; 7. Shielding layer; 8. Fire-resistant layer; 9. Waterproof layer; 10. Outer protective cover; 11. Rubber ring; 12. Fixing block; 13. Hole; 14. First connecting ring; 15. Connecting block; 16. Slot; 17. Locking pin; 18. Second connecting ring; 19. Locking block; 20. Bolt. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-6 This utility model provides a technical solution:

[0031] Example 1: To address the problems existing in the prior art, this example provides the following technical solution: a fire-resistant and waterproof electric vehicle insulated cable with tensile crack resistance, comprising a core 1; a crack-resistant mechanism located on the outside of an outer protective cover 10, which itself is wear-resistant, and a mechanism for fixing the cable position is provided on the outside of the outer protective cover 10, further enhancing the cable's crack resistance; a high-performance mechanism located on the outside of the core 1, enhancing the cable's waterproof, fire-resistant, and insulation properties, greatly improving the overall performance of the cable; and a convenient connection mechanism located on the outside of the outer protective cover 10, enabling quick connection and installation of different cables with strong installation stability.Firstly, an insulation layer 2 is installed on the outside of the wire core 1 for protection. The insulation layer 2 has an insulating function. Secondly, a limiting bracket 3 is fixedly connected to the outside of the insulation layer 2. The limiting bracket 3 supports and limits the insulation layer 2, preventing the wire core 1 and the insulation layer 2 from moving inside the cable. At the same time, the limiting bracket 3 is set outside the separating bracket 4. The separating bracket 4 separates different wire cores 1 and insulation layers 2, effectively preventing entanglement. The separating bracket 4 is set inside the polypropylene mesh tape 5. The polypropylene mesh tape 5 is an internal filling layer of the cable and has the functions of flexibility, anti-eccentricity, and tensile strength. An inner protective cover 6 is installed on the outside of the polypropylene mesh tape 5. The inner protective cover 6 is an internal protective layer of the cable. A shielding layer 7 is installed on the outside of the inner protective cover 6. The shielding layer 7 shields interference signals and prevents interference from external electromagnetic fields. A fire-resistant layer 8 is installed on the outside of the shielding layer 7, which makes the cable fire-resistant. A waterproof layer 9 is installed on the outside of the fire-resistant layer 8, which makes the cable waterproof. An outer protective cover 10 is installed on the outside of the waterproof layer 9. The outer protective cover 10 is the outermost layer of the cable and has a certain degree of wear resistance, which can resist a certain impact and friction. A rubber ring 11 is provided, and a fixing block 12 is installed on the outer side of the rubber ring 11. The fixing block 12 has a hole 13 inside. Because the rubber ring 11 has a certain elasticity and is locked on the outside of the outer protective cover 10, the position of the rubber ring 11 on the outside of the outer protective cover 10 can be moved to achieve a reasonable distribution. Since the fixing block 12 has a hole 13 inside, a wire can be inserted into the hole 13 to bind the wire to the fixing object, which can fix the position of the cable and ensure that the cable will not move and break. In addition, a first connecting ring 14 is installed on the outer side of the outer protective cover 10. The first connecting ring 14 has an internal angle of equal angle. A slot 16 is provided, which can engage with a locking pin 17 installed on the outside of a second connecting ring 18 on another cable. Connecting blocks 15 are installed on the outside of both the second connecting ring 18 and the first connecting ring 14. First, a bolt 20 is inserted into the slot 19, and then the bolt 20 is inserted into the connecting block 15 for tightening. This ensures that the connectors on the outside of the two cables are firmly connected. Furthermore, the slot 19 installed on the outside of the bolt 20 engages with the connecting block 15 installed above the second connecting ring 18 when the bolt 20 is tightened, further enhancing the stability of the cable connection.

[0032] Existing insulated cables have insufficient crack resistance design, which can lead to cable breakage. Therefore, this embodiment addresses this issue through the following technical solution: Figure 2 , Figure 3 and Figure 4As shown, the crack-resistant mechanism includes an outer protective cover 10 disposed on the outside of the waterproof layer 9. A rubber ring 11 is snapped onto the outside of the outer protective cover 10. Due to the elasticity of the rubber ring 11, the rubber ring 11 can be reasonably distributed and snapped onto the outside of the outer protective cover 10. A fixing block 12 is fixedly installed on the outside of the rubber ring 11. A hole 13 is provided inside the fixing block 12. When the cable is laid, an iron wire can be inserted into the hole 13. The iron wire can be used to bind and fix the cable, thereby fixing the position of the cable and preventing the cable from moving back and forth and breaking.

[0033] Example 2: Existing insulated cables have weak overall performance and design deficiencies. Therefore, this example uses the following technical solution, such as... Figure 1 , Figure 2 and Figure 4 As shown, the high-performance mechanism includes an insulation layer 2 disposed on the outside of the wire core 1, which has an insulating function. A polypropylene mesh strip 5 is disposed on the outside of the insulation layer 2, filling the innermost part of the cable. The polypropylene mesh strip 5 has flexibility, tensile strength, and anti-shifting properties, and also prevents core misalignment. Next, separator brackets 4 are evenly spaced inside the polypropylene mesh strip 5, separating each wire core 1 to prevent tangling. A limiting bracket 3 is disposed inside the separating bracket 4, fixing the inner side of the limiting bracket 3 to the insulation layer 2 to ensure that the position of the insulation layer 2 does not shift. Furthermore, an inner protective cover 6, a shielding layer 7, a fire-resistant layer 8, a waterproof layer 9, and an outer protective cover 10 are disposed outside the polypropylene mesh strip 5, greatly improving the overall performance of the device.

[0034] Example 3: Existing insulated cables, when installed by connecting two cables, are cumbersome and unstable, and have design shortcomings. Therefore, this example uses the following technical solution, such as... Figure 3 , Figure 5 and Figure 6 As shown, the convenient connection mechanism includes a first connecting ring 14 located on the outside of the outer protective cover 10. The first connecting ring 14 has slots 16 evenly spaced inside. These slots 16 can engage with locking pins 17 evenly spaced on the outside of a second connecting ring 18 installed on another cable, allowing for quick connection of the two cable connectors. Additionally, connecting blocks 15 are installed on the outside of both the first connecting ring 14 and the second connecting ring 18. Bolts 20 can be inserted into the connecting blocks 15 for tightening, further enhancing the stability of the cable connector. Before inserting the bolt 20 into the connecting block 15, it can be inserted into a locking block 19. After the bolt 20 is inserted into the connecting block 15 and tightened, the locking block 19 engages with the connecting block 15 installed above the second connecting ring 18, further enhancing the stability of the bolt tightening.

[0035] The contents not described in detail in this specification are existing technologies known to those skilled in the art. All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fire-resistant and waterproof electric vehicle insulating cable with tensile crack resistance, comprising: The wire core (1) has an insulation layer (2) installed on its outer side; Its characteristic is that it further includes: Waterproof layer (9), the outer side of the waterproof layer (9) is provided with a crack-resistant mechanism, wherein the crack-resistant mechanism includes an outer protective cover (10), a rubber ring (11), a fixing block (12) and a hole (13). The outer side of the waterproof layer (9) is provided with an outer protective cover (10), and the outer side of the outer protective cover (10) is engaged with a rubber ring (11), and the outer side of the rubber ring (11) is equipped with a fixing block (12), and the fixing block (12) has a hole (13) inside. The outer protective cover (10) is provided with a convenient connection mechanism, which includes a first connecting ring (14), a connecting block (15), a slot (16), a pin (17), a second connecting ring (18), a block (19), and a bolt (20). The outer side of the wire core (1) is provided with a first connecting ring (14), and slots (16) are opened at equal intervals inside the first connecting ring (14). Pins (17) are engaged inside the slots (16), and pins (17) are fixedly installed at equal intervals on the outer side of the second connecting ring (18).

2. The fire-resistant and waterproof electric vehicle insulating cable with tensile crack resistance according to claim 1, characterized in that: The outer side of the insulating layer (2) is fixedly connected to the limiting bracket (3), and the limiting bracket (3) is located on the inner side of the partition bracket (4).

3. The fire-resistant and waterproof electric vehicle insulating cable with tensile crack resistance according to claim 2, characterized in that: The partition brackets (4) are evenly spaced inside the polypropylene mesh belt (5), and an inner protective cover (6) is provided on the outside of the polypropylene mesh belt (5), and a shielding layer (7) is installed on the outside of the inner protective cover (6).

4. The fire-resistant and waterproof electric vehicle insulating cable with tensile crack resistance according to claim 3, characterized in that: The shielding layer (7) is provided with a fire-resistant layer (8) on the outside, and a waterproof layer (9) is provided on the outside of the fire-resistant layer (8).

5. The fire-resistant and waterproof electric vehicle insulating cable with tensile crack resistance according to claim 1, characterized in that: Both the second connecting ring (18) and the first connecting ring (14) have connecting blocks (15) installed above the middle part, and the connecting blocks (15) are internally threaded with bolts (20).

6. The fire-resistant and waterproof electric vehicle insulating cable with tensile crack resistance according to claim 5, characterized in that: The bolt (20) is slidably connected to a locking block (19) on its outer side.

7. The fire-resistant and waterproof electric vehicle insulating cable with tensile crack resistance according to claim 6, characterized in that: The locking block (19) engages with the connecting block (15) installed above the middle of the second connecting ring (18).

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