Battery connecting cable for super-flexible energy storage system and processing equipment

Abstract

The invention relates to the technical field of cable processing, in particular to a super-flexible battery connecting cable for an energy storage system and processing equipment, and the cable comprises a cable core, the cable core comprises a plurality of conductors, and the monofilament diameter of each conductor is 0.05 mm smaller than the maximum monofilament diameter in the conductor specified in the sixth flexible conductor in GB / T 3956; an insulating layer and a sheath layer are sequentially coated outside the cable core, each of the insulating layer and the sheath layer is of a double-layer structure with talcum powder attached between the insulating layer and the sheath layer, and talcum powder is also attached between the insulating layer and the sheath layer. According to the invention, the flexibility of the battery connection cable for the electric power energy storage system is improved, and meanwhile, due to the special structural design of layered insulation and layered sheath, the reliability of cable insulation and sheath is also greatly improved. Therefore, the battery connecting cable for the electric power energy storage system can be better suitable for being installed, laid and used in a narrow space.

Description

Technical Field

[0001] The present invention relates to the technical field of cable processing, and more particularly to a battery connection cable for a super-flexible energy storage system and a processing device therefor. Background Art

[0002] Existing battery connection cables for power energy storage systems have problems such as hard conductors, difficult bending, and insulation damage after bending. The general structure of the cables is the same. The cable mainly consists of a cable core, an insulating layer, and a sheath layer. Talcum powder needs to be coated between the insulating layer and the sheath layer. The traditional production method is a two-step production process with two machine startups. The first machine startup is for producing the insulating layer as the first step, and the second machine startup is for coating talcum powder to produce the sheath layer as the second step. This production method has low production efficiency, high manufacturing costs, and large waste of labor, which is not conducive to large-scale mass production. At the same time, during the processing of double-layer cables, it is necessary to keep the tension of the cable relatively constant so that both the insulating layer and the second-coated sheath layer can be evenly coated.

[0003] Chinese Patent Publication No. CN220041485U discloses a double-layer cable processing device, which includes a constant-tension active wire feeding device, a first extruder, an electric powder passing device, a second extruder, a tractor, and a wire winding machine arranged in sequence. The constant-tension active wire feeding device includes an active wire feeding machine and a constant-tension mechanism. The constant-tension mechanism includes a column, a fixed arm fixed on the column, and a swing arm hinged on the column. A cylinder is connected between the swing arm and the fixed arm. A pressure regulating valve is installed at the air inlet of the cylinder. A fixed guide wheel is installed on the fixed arm, and a swing guide wheel is installed on the swing arm. The wire output by the active wire feeding machine passes around the fixed guide wheel and the swing guide wheel and then enters the first extruder.

[0004] The above solution combines the two steps in the production of double-layer cables into one step, improving the production efficiency. However, when applying talcum powder to the insulating layer extruded by the first extruder, since the cable core covered with the insulating layer does not rotate around its own axis during transportation, it is easy to have more talcum powder on the upper part of the insulating layer than on the lower part. Excessive talcum powder accumulated on the upper part of the insulating layer is not conducive to the insulating layer entering the second extruder for sheath layer coating, and also causes unnecessary waste. In addition, in order to ensure that the outside of the insulating layer is fully covered with talcum powder, the transported insulating layer usually needs to be sent into an electric powder passing device containing talcum powder, and the cable passes through the accumulated talcum powder to complete the coating. The talcum powder in the electric powder passing device will continuously decrease during use. In the prior art, the electric powder passing device cannot be automatically refilled with powder, resulting in the situation that the cable cannot be normally coated with talcum powder due to insufficient talcum powder during powder passing. At the same time, during use, the talcum powder accumulated in the electric powder passing device will be in contact with the outside air for a long time. If too much accumulates, it is easy for the talcum powder to become damp, resulting in a decline in the insulation, friction reduction, and moisture-proof performance of the talcum powder coated on the outside of the insulating layer. Summary of the Invention

[0005] In view of the above problems, a battery connection cable and a processing device for a super-soft energy storage system are provided. By arranging a powder scattering unit on the upper part of the powder passing bin and a first rotating roller in the powder passing bin, the talcum powder is scattered on the upper part of the cable by the powder scattering unit, and the first rotating roller drives the fluff to rotate to coat the talcum powder on the lower part of the cable, so that the talcum powder can be smoothly coated on the outer surface of the cable. And since the cable does not need to be buried in the talcum powder, it is ensured that a large amount of talcum powder will not accumulate in the powder passing bin, thereby avoiding the deterioration of a large amount of talcum powder during long-term use. At the same time, a second rotating roller arranged above the first rotating roller can sweep the small amount of talcum powder accumulated on the upper part of the cable, so that the talcum powder can coat the cable and will not accumulate on the upper part of the cable.

[0006] To solve the problems of the prior art, the present invention provides a battery connection cable for a super-soft energy storage system, including: A cable core, the cable core includes a plurality of conductors, and the single wire diameter of the conductor is 0.05 mm smaller than the maximum single wire diameter specified in the 6th type of soft conductor in GB / T 3956; An insulating layer and a sheath layer are sequentially coated on the outside of the cable core. Both the insulating layer and the sheath layer are double-layer structures with talcum powder attached in the middle, and talcum powder is also attached between the insulating layer and the sheath layer.

[0007] The present invention also relates to a processing device for a battery connection cable for a super-soft energy storage system. The device is used to manufacture a battery connection cable for a super-soft energy storage system. The device includes an electric powder passing unit; the electric powder passing unit includes a powder passing bin with talcum powder stored at the bottom. The cable in transportation passes above the talcum powder accumulated at the bottom of the powder passing bin and penetrates the powder passing bin. Above the cable, there is a powder scattering unit for scattering talcum powder on the upper part of the cable. The upper part of the powder scattering unit receives talcum powder. A first rotating roller is rotatably arranged in the width direction of the powder passing bin between the lower part of the cable and the talcum powder accumulated in the powder passing bin. The first rotating roller is evenly provided with fluff, and when the fluff rotates with the first rotating roller, the talcum powder at the bottom of the powder passing bin is coated on the lower part of the cable.

[0008] Preferably, a second rotating roller is rotatably arranged in parallel above the first rotating roller. The cable passing through the powder passing bin is located between the first rotating roller and the second rotating roller. The second rotating roller is evenly provided with fluff, and when the fluff rotates with the second rotating roller, it contacts the upper part of the cable.

[0009] Preferably, the powder spreading unit can detect the weight of talcum powder above itself. A lifting unit for lifting the talcum powder at the bottom of the powder passing bin is arranged on one side of the powder passing bin. A collecting cavity located above the powder spreading unit is arranged in the lifting unit, and an opening that can be opened or closed according to the value detected by the powder spreading unit is arranged on one side of the collecting cavity.

[0010] Preferably, the lifting unit further includes a lifting pipe vertically arranged on one side of the powder passing bin. The upper part of the lifting pipe is communicated with the collecting cavity. A blower for blowing air into the interior of the lifting pipe is arranged at the bottom of the lifting pipe, and a sponge is arranged at the upper part of the lifting pipe.

[0011] Preferably, a filter screen is arranged at the upper end of the blower.

[0012] Preferably, a check pipe is arranged in the lifting pipe, and the upper opening of the check pipe is smaller than the lower opening.

[0013] Preferably, the powder spreading unit includes a driving unit. A communicating pipe is communicated with the lower part of the lifting unit. One end of the communicating pipe far away from the lifting unit is an air inlet, and the air inlet of the communicating pipe is located on one side of the driving unit.

[0014] Preferably, a feeding unit with talcum powder stored inside is arranged above the powder spreading unit. A second pressure sensor is arranged at the bottom of the powder passing bin, and a rated pressure value is preset. When the value monitored by the second pressure sensor decreases to the rated pressure value, the feeding unit feeds the upper part of the powder spreading unit.

[0015] Preferably, a conveying unit is arranged at the bottom of the powder passing bin. The conveying unit includes a spiral blade arranged along the width direction of the powder passing bin for conveying the talcum powder accumulated at the bottom of the powder passing bin to the lifting unit.

[0016] The beneficial effects of the present invention compared with the prior art are as follows: 1. By setting both the insulating layer and the sheath layer outside the cable core as double-layer structures, and making the single wire diameter of the conductor in the cable core 0.05 mm smaller than the maximum single wire diameter specified in the 6th type of soft conductor in GB / T3956, the battery connection cable for the energy storage system of the present invention has better flexibility than the conventional battery connection cable for the power energy storage system; at the same time, due to the special structural design of the layered insulation and layered sheath, the reliability of the cable insulation and sheath is also greatly improved, enabling the battery connection cable for the power energy storage system of the present invention to better adapt to installation, laying and use in narrow spaces.

[0017] 2. By arranging a material spreading unit at the upper part of the powder passing bin and arranging a first rotating roller in the powder passing bin, the talcum powder is spread on the upper part of the cable through the material spreading unit, and the first rotating roller drives the fluff to rotate, so that the talcum powder is coated on the lower part of the cable. In this way, the outer surface of the cable can be smoothly coated with talcum powder. And since the cable does not need to be buried in the talcum powder, it is ensured that a large amount of talcum powder will not accumulate in the powder passing bin, thereby avoiding the deterioration of a large amount of talcum powder during long-term use. At the same time, the second rotating roller arranged above the first rotating roller can sweep the small amount of talcum powder accumulated on the upper part of the cable, so that the talcum powder can coat the cable and will not accumulate on the upper part of the cable.

[0018] 3. By arranging a connecting pipe between the lifting unit and the driving unit, the hot air around the driving unit is extracted through the connecting pipe, which not only improves the heat dissipation of the driving unit, but also enables the hot air to enter the lifting pipe. The hot air is used to lift the talcum powder, reducing the humidity in the talcum powder and improving the moisture-proof property of the talcum powder stored in the collection chamber. Brief Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of a battery connecting cable for a super-flexible energy storage system of the present invention.

[0020] Figure 2 It is a three-dimensional schematic diagram of a processing device for a battery connecting cable for a super-flexible energy storage system of the present invention Figure 1 .

[0021] Figure 3 It is a side view of a processing device for a battery connecting cable for a super-flexible energy storage system of the present invention.

[0022] Figure 4 It is a Figure 3 cross-sectional schematic view taken along line A-A of a processing device for a battery connecting cable for a super-flexible energy storage system of the present invention.

[0023] Figure 5 It is a three-dimensional sectional schematic diagram of a processing device for a battery connecting cable for a super-flexible energy storage system of the present invention Figure 1 .

[0024] Figure 6 It is a three-dimensional sectional schematic diagram of a processing device for a battery connecting cable for a super-flexible energy storage system of the present invention Figure 2 .

[0025] Figure 7 It is a Figure 6 partial enlarged schematic view at position B of a processing device for a battery connecting cable for a super-flexible energy storage system of the present invention.

[0026] Figure 8It is a sectional three-dimensional schematic diagram of a battery connection cable processing device for a super-flexible energy storage system according to the present invention. Figure 3 。

[0027] Figure 9 It is a three-dimensional schematic diagram of a battery connection cable processing device for a super-flexible energy storage system according to the present invention after removing the feeding unit.

[0028] Figure 10 It is a three-dimensional schematic diagram of a battery connection cable processing device for a super-flexible energy storage system according to the present invention after removing the feeding unit and the housing of the driving unit.

[0029] The reference numerals in the figure are: 1. Cable core; 2. Insulation layer; 3. Sheath layer; 4. Electric powdering unit; 41. Powdering bin; 42. Powder spreading unit; 421. Powder spreading plate; 422. Scraping plate; 423. Slide table; 424. Driving unit; 43. First rotating roller; 431. First rotary driver; 44. Second rotating roller; 45. Lifting unit; 451. Collection chamber; 452. Lifting pipe; 453. Fan; 454. Sponge; 455. Filter screen; 456. Check valve pipe; 46. Connecting pipe; 47. Feeding unit; 471. Feeding bin; 472. Valve body; 48. Conveying unit; 481. Screw blade; 482. Second rotary driver. Specific embodiments

[0030] To further understand the features, technical means, and the specific purposes and functions achieved by the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Refer to Figure 1 : A battery connection cable for a super-flexible energy storage system, comprising: The cable core 1, the cable core 1 includes a plurality of conductors, and the single wire diameter of the conductors is 0.05 mm smaller than the maximum single wire diameter specified in the 6th type of soft conductor in GB / T 3956. The outside of the cable core 1 is sequentially coated with an insulation layer 2 and a sheath layer 3. Both the insulation layer 2 and the sheath layer 3 are double-layer structures with talcum powder attached in the middle, and talcum powder is also attached between the insulation layer 2 and the sheath layer 3.

[0032] The double-layer structures of the insulating layer 2 and the sheath layer 3 of the present invention are both processed by the double extrusion method. Taking the insulating layer 2 with a thickness of 1.2 mm as an example, the insulating layer 2 is composed of a double-layer structure with two layers each having a thickness of 0.6 mm. Talcum powder is coated between the double-layer structures of the insulating layer 2 for lubrication to facilitate the mutual sliding between the double-layer structures of the insulating layer 2. Taking the sheath layer 3 with a thickness of 1.0 mm as an example, the sheath layer 3 is composed of a double-layer structure with two layers each having a thickness of 0.5 mm. Talcum powder is coated between the double-layer structures of the sheath layer 3 for lubrication to facilitate the mutual sliding between the sheath layers 3. 4. Talcum powder is coated between the sheath layer 3 and the insulating layer 2 for lubrication to facilitate the mutual sliding between the insulation and the sheath layer 3. The battery connection cable for the energy storage system of the present invention has better flexibility than the conventional battery connection cable for the power energy storage system. At the same time, due to the special structural design of the layered insulation and layered sheath, the reliability of the cable insulation and sheath is greatly improved, enabling the battery connection cable for the power energy storage system of the present invention to better adapt to installation, laying and use in a narrow space.

[0033] Refer to Figure 2 、 Figure 3 and Figure 5 : 2. The present invention also relates to a processing device for a super-flexible battery connection cable for an energy storage system. The device is used to manufacture a super-flexible battery connection cable for an energy storage system. The device includes an electric powder passing unit 4. The electric powder passing unit 4 includes a powder passing bin 41 with talcum powder stored at the bottom. The cable in transportation passes above the talcum powder accumulated at the bottom of the powder passing bin 41 and penetrates through the powder passing bin 41. Above the cable, there is a powder spreading unit 42 for spreading talcum powder on the upper part of the cable. The upper part of the powder spreading unit 42 receives talcum powder. Along the width direction of the powder passing bin 41, a first rotating roller 43 is rotatably arranged between the lower part of the cable and the talcum powder accumulated in the powder passing bin 41. The first rotating roller 43 is evenly provided with fluff, and when the fluff rotates with the first rotating roller 43, the talcum powder at the bottom of the powder passing bin 41 is coated on the lower part of the cable.

[0034] This processing equipment is equipped with an unwinder for releasing the cable core 1 and an extruder for layer-by-layer wrapping of the outer side of the cable core 1. An electric powder passing unit 4 for coating the cable with talcum powder is provided between adjacent extruders. The existing electric powder passing unit 4 has a simple structure. Usually, talcum powder is put into the electric powder passing unit 4, and then the cable is made to pass through the talcum powder. In order to ensure that the talcum powder can be coated on both the upper and lower parts of the cable, when the cable passes through the electric powder passing unit 4, the cable needs to be completely buried in the talcum powder, so there are relatively high requirements for the accumulation amount of talcum powder, that is, the total amount of talcum powder accumulated in the electric powder passing unit 4 is relatively large. Since the electric powder passing unit 4 is in communication with the outside during the cable transportation process, and talcum powder has a moisture-proof effect, after being used for a period of time, due to the relatively large amount of talcum powder stored in the electric powder passing unit 4, the talcum powder is in long-term contact with the outside air, and finally the talcum powder becomes damp and deteriorates. In this way, it is necessary to uniformly replace the talcum powder, resulting in a relatively high cost.

[0035] In order to avoid the situation that too much talcum powder accumulates in the electric powder passing unit 4, which may lead to the damp and deterioration of the talcum powder, the specific structure of the electric powder passing unit 4 is redesigned to reduce the stock of talcum powder in the electric powder passing unit 4 and avoid the situation that a large amount of talcum powder becomes damp due to long-term contact with the outside. The specific structure and working process of the electric powder passing unit 4 are as follows: At one end of the first rotating roller 43, a first rotating driver 431 for driving the first rotating roller 43 to rotate is provided. The first rotating driver 431 is preferably a servo motor. First of all, a certain amount of talcum powder is stored at the bottom of the powder passing bin 41. The talcum powder accumulated at the bottom of the powder passing bin 41 does not directly contact the cable passing through the powder passing bin 41. In this way, the total amount of talcum powder accumulated in the powder passing bin 41 is much less than that of the traditional talcum powder, avoiding the situation of deterioration due to too much talcum powder being in long-term contact with the outside air. However, in order to ensure that the outer surface of the cable passing through the powder passing bin 41 can be completely coated with talcum powder, a powder spreading unit 42 and a first rotating roller 43 are respectively arranged on the upper and lower parts of the cable. The first rotating roller 43 is evenly provided with fluff. When the first rotating roller 43 rotates, the fluff rotates synchronously. The fluff contacts the talcum powder accumulated at the bottom of the powder passing bin 41, and the fluff drives the talcum powder to the bottom of the cable. Since the fluff is relatively soft and has good adsorption to the powdery talcum powder, it can ensure that the talcum powder can be smoothly coated on the lower part of the cable. The powder spreading unit 42 located above the cable can evenly sprinkle the talcum powder from top to bottom, and the falling talcum powder falls on the upper part of the cable, thus achieving the effect of completely coating the cable with talcum powder. It should be noted that the rotational tangent direction of the first rotating roller 43 on the side close to the lower part of the cable is the same as the cable transportation direction, so as to reduce the relative friction between the fluff and the cable and ensure that the talcum powder can be better coated on the cable.

[0036] Reference Figure 7 : A second rotating roller 44 is rotatably arranged in parallel above the first rotating roller 43. The cable passing through the powder bin 41 is located between the first rotating roller 43 and the second rotating roller 44. The second rotating roller 44 is evenly provided with fluff, and when the fluff rotates with the second rotating roller 44, it contacts the upper part of the cable.

[0037] Since when the powder spreading unit 42 spreads talcum powder on the cable, the cable can only move horizontally, there will be a situation where talcum powder accumulates on the upper part of the cable. When the second rotating roller 44 rotatably arranged above the cable drives the fluff to rotate, the fluff arranged on the second rotating roller 44 sweeps the upper part of the cable, preventing the excess talcum powder accumulated on the upper part of the cable from being swept off. At the same time, since the talcum powder has a certain adsorptivity when adhering to the surface of the cable, and the fluff will bend when contacting the upper surface of the cable, the talcum powder accumulated on the upper part of the cable can be smoothly removed. At the same time, because the fluff is soft in texture, it also prevents the talcum powder adhering to the upper part of the cable from being completely removed during the process of sweeping the upper part of the cable.

[0038] Reference Figure 4 and Figure 9 : The powder spreading unit 42 can detect the weight of the talcum powder on its upper part. A lifting unit 45 for lifting the talcum powder at the bottom of the powder bin 41 is arranged on one side of the powder bin 41. A collection chamber 451 located above the powder spreading unit 42 is arranged in the lifting unit 45, and an opening that can be opened or closed according to the value detected by the powder spreading unit 42 is arranged on one side of the collection chamber 451.

[0039] During the process of the powder spreading unit 42 spreading talcum powder onto the upper part of the cable, some of the talcum powder swept down by the fluff on the second rotating roller 44 or falling from one side of the cable accumulates at the bottom of the powder passing bin 41. If the talcum powder accumulated at the bottom of the powder passing bin 41 is not processed, the talcum powder will gradually accumulate, resulting in the deterioration of the accumulated talcum powder due to moisture absorption. After the lifting unit 45 is provided, the talcum powder accumulated at the bottom of the powder passing bin 41 is lifted into the collection chamber 451 by the lifting unit 45 for collection, reducing the contact area between the talcum powder and the air, thereby reducing the moisture absorption efficiency of the talcum powder per unit time and extending the service life of the talcum powder in the state of being exposed to the air. The powder spreading unit 42 includes a powder spreading plate 421. The upper part of the powder spreading plate 421 is used to receive the talcum powder. A plurality of filter holes are evenly formed in the powder spreading plate 421. The powder spreading plate 421 realizes vibrating powder spreading by reciprocating horizontally. A first pressure sensor is arranged below the powder spreading plate 421. The first pressure sensor is used to detect the weight of the talcum powder received on the powder spreading plate 421. If there is too much talcum powder received on the powder spreading plate 421, resulting in a large extrusion force on the talcum powder close to the powder spreading plate 421, the talcum powder will be shaken off when the powder spreading plate 421 vibrates. If there is too little talcum powder received on the powder spreading plate 421, the talcum powder will stop falling during the powder spreading process, resulting in the upper part of the cable not being coated with talcum powder. Thus, by setting the first pressure sensor to monitor the weight of the talcum powder on the powder spreading plate 421, it can be avoided that the amount of talcum powder on the powder spreading plate 421 is too much or too little, ensuring the smooth powder spreading of the talcum powder on the powder spreading plate 421. During specific use, it is necessary to set a monitoring threshold for the first pressure sensor. When the first pressure sensor monitors that the total amount of talcum powder stored on the powder spreading plate 421 is at the lowest value of the monitoring threshold, the opening of the collection chamber 451 is opened at this time, and the talcum powder is discharged through the collection chamber 451. Thus, the monitored value of the first pressure sensor gradually rises. When the monitored value reaches the maximum value of the monitoring threshold, the opening on the collection chamber 451 is closed. The setting of the monitoring threshold for the first pressure sensor needs to be determined according to the actual situation and will not be elaborated here.

[0040] In order to ensure that the talcum powder on the powder spreading plate 421 does not accumulate, a scraping plate 422 and a sliding table 423 are arranged on the powder spreading plate 421. The sliding table 423 is arranged on the powder spreading plate 421 along the width direction of the powder spreading plate 421. A scraping plate 422 that moves along the width direction of the powder spreading plate 421 is arranged on the sliding table 423. The scraping plate 422 can scrape the accumulated talcum powder on the powder spreading plate 421 flat, ensuring the uniform powder spreading of the powder spreading plate 421.

[0041] Refer to Figure 5:The lifting unit 45 further includes a lifting pipe 452 vertically arranged on one side of the powder passing bin 41. The upper part of the lifting pipe 452 communicates with the collection chamber 451. A blower 453 for blowing air into the interior of the lifting pipe 452 is provided at the bottom of the lifting pipe 452, and a sponge 454 is provided at the upper part of the lifting pipe 452.

[0042] A conveying unit 48 for conveying talcum powder into the lifting pipe 452 is provided at the bottom of the powder passing bin 41. Subsequently, the blower 453 blows air into the lifting pipe 452, so that the talcum powder entering the lifting pipe 452 flows upward with the air. The air is discharged through the sponge 454, and the lifted talcum powder falls into the collection chamber 451.

[0043] Refer to Figure 5 :A filter screen 455 is provided at the upper end of the blower 453.

[0044] In this way, when the lifting unit 45 stops operating, part of the talcum powder that has not entered the collection chamber 451 in time will not fall on the blower 453.

[0045] Refer to Figure 5 :A check valve pipe 456 is provided in the lifting pipe 452, and the upper opening of the check valve pipe 456 is smaller than the lower opening.

[0046] By providing the check valve pipe 456, the lifted talcum powder is prevented from falling again, ensuring that the talcum powder can smoothly enter the collection chamber 451.

[0047] Refer to Figure 8 and Figure 10 :The material spreading unit 42 includes a driving unit 424. A connecting pipe 46 is connected to the lower part of the lifting unit 45. One end of the connecting pipe 46 away from the lifting unit 45 is an air inlet, and the air inlet of the connecting pipe 46 is located on one side of the driving unit 424.

[0048] The driving unit 424 is used to drive the spreading plate 421 to reciprocate horizontally. The driving unit 424 for driving the spreading plate 421 to reciprocate in the present invention is prior art and will not be elaborated here. When the driving unit 424 operates, heat is generated. When the blower 453 operates, the air inlet of the connecting pipe 46 starts to intake air. In this way, the hot air around the driving unit 424 can be sucked into the lifting pipe 452 by the connecting pipe 46. In this way, the talcum powder in the lifting pipe 452 can not only be lifted under the action of the hot air, but also be dried by the hot air, improving the moisture resistance of the talcum powder stored in the collection chamber 451. It should be noted that when the collection chamber 451 is opened, the blower 453 stops operating, so as to avoid the talcum powder spraying out from the opening of the collection chamber 451.

[0049] Refer to Figure 6 and Figure 8:Above the powder spreading unit 42, a feeding unit 47 storing talcum powder inside is provided. At the bottom of the powder passing bin 41, a second pressure sensor is provided, and a rated pressure value is preset. When the monitored value of the second pressure sensor decreases to the rated pressure value, the feeding unit 47 feeds the upper part of the powder spreading unit 42.

[0050] The feeding unit 47 includes a feeding bin 471 and a valve body 472. The feeding bin 471 stores talcum powder, and the valve body 472 is arranged at the bottom of the feeding bin 471. Whether the talcum powder in the feeding bin 471 is discharged is controlled by the opening or closing of the valve body 472.

[0051] The preset rated pressure value refers to the lowest content value of the total amount of talcum powder at the bottom of the powder passing bin 41. At this time, the talcum powder at the bottom of the powder passing bin 41 can still contact the fluff on the first rotating roller 43, and ensure that the fluff has sufficient talcum powder content. Only in this way can it be ensured that the fluff can coat the talcum powder on the lower part of the cable. If the talcum powder at the bottom of the powder passing bin 41 is lower than the lowest content value, the fluff on the first rotating roller 43 will not be able to dip up the talcum powder. The feeding unit 47 is in a sealed state before being opened. In this way, the talcum powder in the feeding unit 47 can be stored for a longer time compared to the talcum powder in the powder passing bin 41. Before the electric powder passing unit 4 operates, the feeding unit 47 will supply the rated talcum powder to the powder spreading plate 421, but the amount of supplied talcum powder should not exceed the maximum value of the rated threshold preset by the first pressure sensor. At this time, it is default that the talcum powder stored in the powder passing bin 41 exceeds the lowest content value. After the feeding unit 47 finishes feeding, it closes, and the outside is not connected to the feeding unit 47. Subsequently, the powder spreading unit 42 and the fluff on the first rotating roller 43 start to coat the cable with talcum powder. The talcum powder falling on the powder spreading unit 42 accumulates at the bottom of the powder passing bin 41. The lifting unit 45 lifts the talcum powder accumulated at the bottom of the powder passing bin 41 into the collection chamber 451 and feeds the powder spreading plate 421 according to the first pressure sensor. As time goes by, without the replenishment of the feeding unit 47, the talcum powder at the bottom of the powder passing bin 41 will inevitably gradually decrease. In this way, the weight of the talcum powder at the bottom of the powder passing bin 41 decreases. When the value monitored by the second pressure sensor reaches the rated pressure value, the feeding unit 47 starts. The feeding unit 47 feeds the powder spreading plate 421 multiple times according to the monitoring threshold preset by the first pressure sensor, and at this time the lifting unit 45 stops operating. In this way, the talcum powder at the bottom of the powder passing bin 41 can gradually increase. In the actual use process, the number of supply times of the feeding unit 47 can be limited. In this way, it can be avoided that the feeding unit 47 supplies too much talcum powder, and then an excessive accumulation of talcum powder occurs at the bottom of the powder passing bin 41, that is, the talcum powder buries the first rotating roller 43.

[0052] Refer to Figures 2 - 4 and Figure 6: A conveying unit 48 is provided at the bottom of the powder passing bin 41. The conveying unit 48 includes a spiral blade 481 arranged along the width direction of the powder passing bin 41 to convey the talcum powder accumulated at the bottom of the powder passing bin 41 into the lifting unit 45.

[0053] A second rotary driver 482 for driving the spiral blade 481 to rotate is provided at the end of the spiral blade 481. The second rotary driver 482 is preferably a servo motor.

[0054] Working principle: First, a certain amount of talcum powder is stored at the bottom of the powder passing bin 41. The talcum powder accumulated at the bottom of the powder passing bin 41 does not directly contact the cable passing through the powder passing bin 41. In this way, the total amount of talcum powder accumulated in the powder passing bin 41 is much less than that of the traditional talcum powder, avoiding the deterioration caused by excessive talcum powder contacting the outside air for a long time. However, in order to ensure that the outer surface of the cable passing through the powder passing bin 41 can be completely coated with talcum powder, a powder spreading unit 42 and a first rotating roller 43 are respectively arranged at the upper and lower parts of the cable. The first rotating roller 43 is evenly provided with fluff. When the first rotating roller 43 rotates, the fluff rotates synchronously. The fluff contacts the talcum powder accumulated at the bottom of the powder passing bin 41, and the fluff drives the talcum powder to the bottom of the cable. Since the fluff is relatively soft and has good adsorption to the powdery talcum powder, the talcum powder can be smoothly coated on the lower part of the cable. The powder spreading unit 42 located above the cable can evenly sprinkle the talcum powder from top to bottom, and the falling talcum powder falls on the upper part of the cable, thus achieving the effect of completely coating the cable with talcum powder.

[0055] The above embodiments only represent one or several implementation manners of the present invention. The description is relatively specific and detailed, but it cannot be understood as a limitation to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A super flexible battery connection cable for an energy storage system, characterized in that: include: The cable core (1) comprises a plurality of conductors, wherein the diameter of a single wire of the conductor is 0.05 mm smaller than the maximum single wire diameter of the conductor specified in the sixth type of soft conductor in GB / T 3956; The outside of the cable core (1) is sequentially coated with an insulating layer (2) and a sheath layer (3); both the insulating layer (2) and the sheath layer (3) are double-layer structures with talcum powder attached in the middle, and talcum powder is also attached between the insulating layer (2) and the sheath layer (3).

2. A processing device for a super-flexible battery connecting cable for an energy storage system, the device being used to manufacture a super-flexible battery connecting cable for an energy storage system as claimed in claim 1, the device comprising an electric powder passing unit (4); characterized in that: The electric powder-spreading unit (4) comprises a powder-spreading bin (41) with talcum powder stored at the bottom. The cable in transport passes over the talcum powder accumulated at the bottom of the powder-spreading bin (41) and penetrates the powder-spreading bin (41). A spreading unit (42) for spreading talcum powder on the upper part of the cable is arranged above the cable. The upper part of the spreading unit (42) receives talcum powder. A first rotating roller (43) is arranged between the lower part of the cable and the talcum powder accumulated in the powder-spreading bin (41) and rotates along the width direction of the powder-spreading bin (41). Fluff is evenly arranged on the first rotating roller (43). When the first rotating roller (43) rotates, the fluff spreads the talcum powder at the bottom of the powder-spreading bin (41) onto the lower part of the cable.

3. The ultra-flexible battery connection cable processing equipment for energy storage system according to claim 2, characterized in that: A second rotating roller (44) is arranged above the first rotating roller (43) to rotate in parallel, the cable passing through the powder bin (41) is located between the first rotating roller (43) and the second rotating roller (44), and the second rotating roller (44) is evenly provided with fluff, which contacts the upper part of the cable when the second rotating roller (44) rotates.

4. The ultra-flexible battery connection cable processing equipment for energy storage system according to claim 2, characterized in that: The spreading unit (42) can detect the weight of the talcum powder on its upper part. A lifting unit (45) for lifting the talcum powder at the bottom of the powder bin (41) is provided on one side of the powder bin (41). A collecting chamber (451) located above the spreading unit (42) is provided in the lifting unit (45). An opening that can be opened or closed according to a value detected by the spreading unit (42) is provided on one side of the collecting chamber (451).

5. The ultra-flexible battery connection cable processing equipment for energy storage system according to claim 4, characterized in that: The lifting unit (45) further comprises a lifting pipe (452) vertically arranged on one side of the powder bin (41); the upper portion of the lifting pipe (452) is in communication with the collecting chamber (451); a fan (453) for blowing air into the lifting pipe (452) is arranged at the bottom of the lifting pipe (452); and a sponge (454) is arranged at the upper portion of the lifting pipe (452).

6. The ultra-flexible battery connection cable processing equipment for energy storage system according to claim 5, characterized in that: A filter screen (455) is provided at the upper end of the fan (453).

7. The ultra-flexible battery connection cable processing equipment for energy storage system according to claim 5, characterized in that: A non-return pipe (456) is arranged in the lifting pipe (452), and the upper opening of the non-return pipe (456) is smaller than the lower opening.

8. The ultra-flexible battery connection cable processing equipment for energy storage system according to claim 4, characterized in that: The material spreading unit (42) comprises a driving unit (424), and a connecting pipe (46) is connected to the lower part of the lifting unit (45). One end of the connecting pipe (46) away from the lifting unit (45) is an air inlet, and the air inlet of the connecting pipe (46) is located on one side of the driving unit (424).

9. The ultra-flexible battery connection cable processing equipment for energy storage system according to claim 4, characterized in that: A feeding unit (47) containing talcum powder is arranged above the material spreading unit (42), and a second pressure sensor is arranged at the bottom of the powder storage bin (41), and a rated pressure value is preset. When the value monitored by the second pressure sensor decreases to the rated pressure value, the feeding unit (47) feeds material to the upper part of the material spreading unit (42).

10. The ultra-flexible battery connection cable processing equipment for energy storage system according to claim 4, characterized in that: A conveying unit (48) is provided at the bottom of the powder bin (41), and the conveying unit (48) comprises a spiral blade (481) provided along the width direction of the powder bin (41) and configured to convey talcum powder accumulated at the bottom of the powder bin (41) to the lifting unit (45).

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