Low-smoke halogen-free soft busbar

Abstract

This invention relates to the technical field of low-smoke halogen-free flexible busbar products, and discloses a low-smoke halogen-free flexible busbar including a busbar and an insulating sleeve. This low-smoke halogen-free flexible busbar utilizes a movable component. When a damaged insulating sleeve needs to be replaced, a sliding plate is operated to slide within a retaining sleeve. The sliding plate drives the insertion shaft to move, and the insertion shaft inserts into the interior of a limiting block. When the insertion shaft moves to a groove in the limiting block, a telescopic rod inside the movable shaft resets under the action of a fixed spring, causing the insertion rod to reset and be fixed inside the limiting block. This creates conditions for subsequent installation of a new insulating sleeve. When the insulating sleeve is damaged, it can be quickly replaced and re-fixed, preventing air, moisture, or dust from entering the busbar surface, avoiding problems such as reduced insulation resistance and partial discharge caused by external media corrosion, extending service life and improving replacement efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of low-smoke halogen-free flexible busbar products, specifically a low-smoke halogen-free flexible busbar. Background Technology

[0002] With the increasing demands of modern electrical systems for fire safety, environmental protection, and installation flexibility, low-smoke halogen-free flexible busbars have been widely used in numerous fields due to their advantages such as low smoke production during combustion, no release of halogen-containing toxic gases, and excellent flexibility. For example, in high-rise buildings, data centers, hospitals, subways, and other locations with high personnel density and stringent requirements for fire safety and electrical performance, low-smoke halogen-free flexible busbars have become an indispensable key component in power transmission and distribution, ensuring maximum protection of personnel safety and stable operation of electrical equipment under normal operation and emergency conditions.

[0003] In practical use, although the insulation sleeves of low-smoke halogen-free flexible busbars possess certain protective properties, damage is inevitable due to long-term exposure to complex environmental conditions. These include mechanical stress, friction during installation and maintenance, vibration from surrounding equipment, and thermal expansion and contraction caused by temperature changes. Once damaged, most existing low-smoke halogen-free flexible busbars lack convenient and effective solutions. Traditional methods often require significant manpower, resources, and time. Either specialized technicians are needed for complex disassembly and replacement using specialized tools, which is difficult to implement promptly in non-professional maintenance scenarios; or, due to the difficulty of replacement, the damaged busbar is reused, which undoubtedly poses a significant safety hazard. Damage allows air, moisture, dust, and other external media to enter and contact the busbar, leading to reduced insulation resistance, partial discharge, and severely impacting the busbar's insulation performance. This can even cause short circuits and other electrical faults, threatening the safe operation of the entire electrical system. Summary of the Invention

[0004] Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a low-smoke halogen-free flexible busbar, which solves the problem of the lack of convenient and effective solutions for the insulation sleeve of existing low-smoke halogen-free flexible busbars after damage, resulting in replacement operations requiring professional personnel and tools, and consuming a lot of manpower, material resources and time costs.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a low-smoke halogen-free flexible busbar, comprising a busbar and an insulating sleeve, wherein the surface of the busbar is entirely covered by the insulating sleeve; the busbar is integrally formed with the insulating sleeve in multiple layers to constitute a low-smoke halogen-free flexible busbar semi-finished product; the low-smoke halogen-free flexible busbar semi-finished product is bent, and the insulating sleeve covering the end portion is removed to expose the end portion, thereby obtaining a low-smoke halogen-free flexible busbar; it also includes a movable component for replacing a damaged insulating sleeve; a limiting component for positioning the movable component; and a moving component for tightly fitting the insulating sleeve to the surface of the busbar; the movable component includes: a retainer, the retainer being disposed on the surface of the insulating sleeve, a sliding plate being fixedly installed on the outside of the retainer, the sliding plate being slidably connected to the inside of the retainer, and an insertion shaft being fixedly installed at the bottom of the sliding plate, the insertion shaft being... A fixed shaft is fixedly installed inside the shaft. A movable shaft is hinged to the surface of the fixed shaft. A plug rod is fixedly installed on the outside of the movable shaft, and the plug rod passes through the plug shaft. A limiting block is fixedly installed inside the retaining sleeve. The limiting component includes: a second telescopic rod, which is fixedly installed on the surface of the limiting block. A movable spring is fixedly installed on the surface of the second telescopic rod, and the second telescopic rod passes through the retaining sleeve. A fixed block is fixedly installed on the surface of the second telescopic rod, and an abutment block is fixedly installed on the outside of the fixed block, and the abutment block passes through the retaining sleeve.

[0008] Preferably, a telescopic rod is fixedly installed inside the movable shaft, and a fixing spring is fixedly installed inside the telescopic rod.

[0009] Preferably, a connecting plate is fixedly installed on the surface of the sleeve, a movable rod is rotatably connected to the inner side of the connecting plate, an insert plate is fixedly installed on the surface of the movable rod, an insert block is fixedly installed at the bottom of the insert plate, and the insert block is inserted into the top of the fixed block.

[0010] Preferably, a spiral spring is fixedly installed on the surface of the movable rod, and the spiral spring is fixedly installed on the inner wall of the connecting plate.

[0011] Preferably, a connecting spring is fixedly installed on the inner side of the sliding block, and the connecting spring is fixedly installed inside the positioning block.

[0012] Preferably, the limiting block has a groove inside, and the fixing block has a strip groove on its top.

[0013] Preferably, the card sleeve is L-shaped, and there are two sets of card sleeves, which are symmetrical about the center. The card sleeves slide against each other inside the card sleeves via a sliding plate.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, the present invention provides a low-smoke halogen-free flexible busbar, which has the following beneficial effects:

[0016] 1. This low-smoke halogen-free flexible busbar utilizes a movable component. When a damaged insulation sleeve needs replacement, the sliding plate is operated to slide within the retaining sleeve. The sliding plate drives the insertion shaft to move, and the insertion shaft inserts into the interior of the limiting block. When the insertion shaft moves to the groove in the limiting block, the telescopic rod inside the movable shaft resets under the action of the fixed spring, causing the insertion rod to reset and be fixed inside the limiting block. This creates conditions for the subsequent installation of a new insulation sleeve. When the insulation sleeve is damaged, it can be quickly replaced and re-fixed, preventing air, moisture, or dust from entering the busbar surface. This avoids problems such as reduced insulation resistance and partial discharge caused by external medium corrosion, extending service life and improving replacement efficiency.

[0017] 2. This low-smoke halogen-free flexible busbar utilizes a limiting component. After the insulation sleeve is replaced, the upward-swinging insert plate will reset under the action of the spiral spring, thereby driving the insert block to reset. After the insert block resets, it will be inserted into the groove opened on the top of the fixed block for restriction, thus accurately limiting the movement range of the moving component. This ensures that the operation of the insulation sleeve is accurate and orderly, avoiding excessive displacement or positional deviation during operation, and improving the stability and fixing effect of the insulation sleeve installation.

[0018] 3. This low-smoke halogen-free flexible busbar utilizes a movable component. After the insulating sleeve is placed in the appropriate position, the elastic force of the connecting spring pushes the sliding block. The sliding block drives the contact plate to apply a certain pressure to the insulating sleeve, ensuring that the insulating sleeve fits tightly against the surface of the busbar. This guarantees that there are no gaps between the insulating sleeve and the busbar, preventing electrical safety hazards caused by poor fit and loosening during use. This improves the reliability and durability of the insulating sleeve. Attached Figure Description

[0019] Figure 1 This is a front view schematic diagram of a low-smoke halogen-free flexible busbar proposed in this invention;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of a low-smoke halogen-free flexible busbar proposed in this invention;

[0021] Figure 3 This is a schematic diagram of the product structure of a low-smoke halogen-free flexible busbar after deformation, as proposed in this invention.

[0022] Figure 4 This is a schematic diagram of a partial structure of a low-smoke halogen-free flexible busbar manifold proposed in this invention;

[0023] Figure 5 This is a front view schematic diagram of a low-smoke halogen-free flexible busbar positioning block proposed in this invention;

[0024] Figure 6 This is a front view schematic diagram of a movable component of a low-smoke halogen-free flexible busbar proposed in this invention;

[0025] Figure 7 This is a schematic diagram of a cross-sectional structure of a low-smoke halogen-free flexible busbar telescopic rod proposed in this invention;

[0026] Figure 8 This is a schematic diagram of the cross-sectional structure of a low-smoke halogen-free flexible busbar limiting block proposed in this invention;

[0027] Figure 9 This is a front view schematic diagram of a low-smoke halogen-free flexible busbar limiting component proposed in this invention;

[0028] Figure 10 This is a partial side view of the moving assembly of a low-smoke halogen-free flexible busbar proposed in this invention.

[0029] Figure 11 This is a schematic cross-sectional view of a low-smoke, halogen-free flexible busbar positioning block proposed in this invention.

[0030] In the diagram: 1. Busbar; 2. Insulating sleeve; 3. Moving component; 31. Sleeve; 32. Slide plate; 33. Insert shaft; 34. Fixed shaft; 35. Moving shaft; 36. Insert rod; 37. Limiting block; 38. Telescopic rod one; 39. Fixed spring; 4. Limiting component; 41. Telescopic rod two; 42. Moving spring; 43. Fixed block; 44. Abutment block; 45. Connecting plate; 46. Moving rod; 47. Insert plate; 48. Insert block; 49. Spiral spring; 5. Moving component; 51. Positioning block; 52. Sliding block; 53. Abutment plate; 54. Connecting spring; 370. Groove; 430. Strip groove. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figures 1-11As shown, a low-smoke halogen-free flexible busbar includes a busbar 1 and an insulating sleeve 2. The busbar 1 uses a multi-layer copper strip structure as the conductor, and its surface is plated with a matte tin layer, which improves conductivity and corrosion resistance, enhancing the busbar's corrosion resistance and weldability. The surface of the busbar 1 is entirely covered by the insulating sleeve 2. The insulating sleeve 2 is made of polypropylene material with excellent insulation, flame retardant, and halogen-free properties, ensuring the low-smoke halogen-free environmental safety of the busbar. Simultaneously, the polypropylene insulation layer has excellent aging resistance, impact resistance, and wear resistance, making it economical and practical. The multi-layered busbar 1 and the insulating sleeve 2 are integrally molded to form a low-smoke halogen-free flexible busbar semi-finished product. The semi-finished halogen-free flexible busbar is bent, and the insulating sleeve 2 covering the end is removed to expose the end, resulting in a low-smoke halogen-free flexible busbar. The busbar 1 and the insulating sleeve 2 are integrally formed by extrusion. Multiple layers of busbar 1 are stacked and covered with polypropylene low-smoke halogen-free insulating sleeve 2. The inner and outer surfaces of the insulating sleeve 2 are serrated. It has the advantages of simple production process, easy control of processing accuracy, high degree of automation, good multi-dimensional formability, reasonable and compact structure, and beautiful appearance. It has a large current carrying capacity, excellent heat dissipation, insulation, and low-smoke halogen-free environmental protection performance. The inner and outer surfaces of the insulating sleeve 2 are serrated and tightly bonded to the busbar 1 without slippage.

[0033] It also includes a movable component 3 for replacing the damaged insulating sleeve 2;

[0034] Restriction component 4 is used to position the active component 3;

[0035] Movable component 5 is used to tightly fit the insulating sleeve 2 onto the surface of the busbar 1;

[0036] First, the active component 3 includes: a retainer 31, which is disposed on the surface of the insulating sleeve 2. A slide plate 32 is fixedly installed on the outside of the retainer 31 and is slidably connected to the inside of the retainer 31. A shaft 33 is fixedly installed at the bottom of the slide plate 32. A fixed shaft 34 is fixedly installed inside the shaft 33. A movable shaft 35 is hinged to the surface of the fixed shaft 34. A rod 36 is fixedly installed on the outside of the movable shaft 35 and passes through the shaft 33. A limiting block 37 is fixedly installed inside the retainer 31. A telescopic rod 38 is fixedly installed inside the movable shaft 35. A fixing spring 39 is fixedly installed inside the telescopic rod 38. The fixing spring 39 inside the telescopic rod 38 can be used to achieve the effect of resetting after the telescopic rod 38 has been extended or retracted.

[0037] Secondly, the limiting component 4 includes: a second telescopic rod 41, which is fixedly installed on the surface of the limiting block 37. A movable spring 42 is fixedly installed on the surface of the second telescopic rod 41. The second telescopic rod 41 passes through the sleeve 31. A fixed block 43 is fixedly installed on the surface of the second telescopic rod 41. An abutment block 44 is fixedly installed on the outside of the fixed block 43. The abutment block 44 passes through the sleeve 31. A connecting plate 45 is fixedly installed on the surface of the sleeve 31. A movable rod 46 is rotatably connected to the inside of the connecting plate 45. An insert plate 47 is fixedly installed on the surface of the movable rod 46. An insert block 48 is fixedly installed at the bottom of the insert plate 47. The insert block 48 is inserted into the top of the fixed block 43. A spiral spring 49 is fixedly installed on the surface of the movable rod 46. The spiral spring 49 is fixedly installed on the inner wall of the connecting plate 45. The spiral spring 49 on the surface of the movable rod 46 can achieve the effect of resetting after the movable rod 46 drives the insert plate 47 to swing upward.

[0038] Furthermore, the moving component 5 includes: a positioning block 51, which is fixedly installed on the inner wall of the sleeve 31; a sliding block 52 is slidably connected inside the positioning block 51; an abutment plate 53 is fixedly installed on the inner side of the sliding block 52; the abutment plate 53 is movably connected inside the sleeve 31; and a connecting spring 54 is fixedly installed on the inner side of the sliding block 52. The connecting spring 54 is fixedly installed inside the positioning block 51. The sliding block 52 can be pushed by the elastic force of the connecting spring 54, and the sliding block 52 drives the abutment plate 53 to apply a certain pressure to the insulating sleeve 2, so that the insulating sleeve 2 can fit tightly against the surface of the busbar 1, ensuring that there is no gap between the insulating sleeve 2 and the busbar 1.

[0039] Finally, a groove 370 is provided inside the limiting block 37, through which the insert rod 36 can be inserted into the limiting block 37 for fixation. A strip groove 430 is provided on the top of the fixing block 43, through which the insert block 48 can be inserted into the top of the fixing block 43 for fixation.

[0040] The card sleeve 31 is L-shaped, and there are two sets of card sleeves 31. The two sets of card sleeves 31 are centrally symmetrical, and the card sleeves 31 slide against each other inside the card sleeves 31 via the slide plate 32.

[0041] Working principle: This low-smoke halogen-free flexible busbar is based on the busbar 1. An insulating sleeve 2 is wrapped around its entire surface, and the final product is manufactured through multiple layers of overlapping, integral molding with the insulating sleeve 2, bending, and removal of the end insulating sleeve 2. The movable component 3, the limiting component 4, and the moving component 5 work together to address the replacement issue should the insulating sleeve 2 be damaged, and to ensure a tight fit between the insulating sleeve 2 and the busbar 1, guaranteeing the overall stable and reliable performance of the flexible busbar. When a damaged insulating sleeve 2 needs replacement, the sliding plate 32 is operated to slide it within the retaining sleeve 31. The sliding plate 32 drives the insertion shaft 33 to move. The movement of the insertion shaft 33 engages inside the limiting block 37. The limiting block 37 abuts against the insertion rod 36, causing the insertion rod 36 to move towards the surface near the fixed shaft 34 via the movable shaft 35. When the insertion shaft 33 moves to the groove 370 in the limiting block 37, the telescopic rod 38 inside the movable shaft 35 resets under the action of the fixed spring 39, thus resetting the insertion rod 36. The insert rod 36 is inserted into the inside of the limiting block 37 for fixation. When disassembly is required, the insert plate 47 can be manually pulled upwards, causing the insert block 48 to move upwards, thus releasing the restriction of the insert block 48 on the fixing block 43. By pressing the fixing block 43, the contact block 44 is moved to the surface of the insert rod 36, causing the insert rod 36 to continue moving closer to the surface of the fixing shaft 34. This releases the restriction of the limiting block 37 on the insert rod 36 and the surrounding area of ​​the insulating sleeve 2, facilitating the removal of the damaged insulating sleeve 2 and creating conditions for the subsequent installation of a new insulating sleeve 2. When the insulating sleeve 2 is damaged, it can be quickly replaced and re-fixed, preventing air, moisture, or dust from entering the surface of the busbar 1 and avoiding problems such as reduced insulation resistance and partial discharge caused by external medium corrosion. This significantly improves the reliability of the flexible busbar in harsh environments such as humidity and dust, extends its service life, and improves replacement efficiency.

[0042] After the insulating sleeve 2 is replaced, the linkage base with the movable component 3 will be activated. At this time, the upward swinging insert plate 47 will be reset under the action of the spiral spring 49, thereby driving the insert block 48 to reset. After the insert block 48 is reset, it will be inserted into the groove 370 opened on the top of the fixed block 43 for restriction. The insertion and cooperation between the insert block 48 and the fixed block 43 can further accurately lock the position of the movable component 3, thereby accurately limiting the range of motion of the movable component 3, ensuring that the operation of the insulating sleeve 2 is accurate and orderly, avoiding excessive displacement or positional deviation during the operation, and improving the stability and fixing effect of the insulating sleeve 2 installation.

[0043] When installing a new insulating sleeve 2 or adjusting the existing insulating sleeve 2, after the insulating sleeve 2 is placed in the corresponding position, the sliding block 52 is pushed by the elastic force of the connecting spring 54. The sliding block 52 drives the contact plate 53 to apply a certain pressure to the insulating sleeve 2, so that the insulating sleeve 2 can fit tightly against the surface of the busbar 1, ensuring that there is no gap between the insulating sleeve 2 and the busbar 1, thereby maintaining good insulation performance and the stability of the overall structure of the flexible busbar, preventing electrical safety hazards caused by loosening during use, improving the reliability of the insulating sleeve 2 and enhancing its durability.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A low-smoke halogen-free flexible busbar, comprising a busbar (1) and an insulating sleeve (2), characterized in that: The surface of the busbar (1) is entirely covered by the insulating sleeve (2); the busbar (1) is stacked in multiple layers and integrally formed with the insulating sleeve (2) to form a low-smoke halogen-free flexible busbar semi-finished product; the low-smoke halogen-free flexible busbar semi-finished product is bent, and the insulating sleeve (2) covering the end part is removed to expose the end part, thus obtaining the low-smoke halogen-free flexible busbar. It also includes a movable component (3) for replacing the damaged insulating sleeve (2); The limiting component (4) is used to position the active component (3); The movable component (5) is used to ensure that the insulating sleeve (2) fits tightly against the surface of the busbar (1); The movable component (3) includes: a retainer (31), which is disposed on the surface of the insulating sleeve (2). A sliding plate (32) is fixedly installed on the outside of the retainer (31). The sliding plate (32) is slidably connected to the inside of the retainer (31). A pin shaft (33) is fixedly installed at the bottom of the sliding plate (32). A fixed shaft (34) is fixedly installed inside the pin shaft (33). A movable shaft (35) is hinged to the surface of the fixed shaft (34). A rod (36) is fixedly installed on the outside of the movable shaft (35). The rod (36) passes through the pin shaft (33). A limiting block (37) is fixedly installed inside the retainer (31). The limiting component (4) includes: a telescopic rod two (41). 1) Fixedly installed on the surface of the limiting block (37), the telescopic rod two (41) is fixedly installed with a movable spring (42), the telescopic rod two (41) passes through the sleeve (31), the telescopic rod two (41) is fixedly installed with a fixing block (43), the fixing block (43) is fixedly installed with an abutment block (44) on the outside of the fixing block (43), the abutment block (44) passes through the sleeve (31), the moving component (5) includes: a positioning block (51), the positioning block (51) is fixedly installed on the inner wall of the sleeve (31), the positioning block (51) is slidably connected with a sliding block (52) inside the positioning block (51), the sliding block (52) is fixedly installed with an abutment plate (53) on the inner side of the sliding block (52), and the abutment plate (53) is movably connected inside the sleeve (31).

2. The low-smoke halogen-free flexible busbar according to claim 1, characterized in that: A telescopic rod (38) is fixedly installed inside the movable shaft (35), and a fixing spring (39) is fixedly installed inside the telescopic rod (38).

3. The low-smoke halogen-free flexible busbar according to claim 1, characterized in that: A connecting plate (45) is fixedly installed on the surface of the sleeve (31). A movable rod (46) is rotatably connected to the inner side of the connecting plate (45). An insert plate (47) is fixedly installed on the surface of the movable rod (46). An insert block (48) is fixedly installed at the bottom of the insert plate (47). The insert block (48) is inserted into the top of the fixed block (43).

4. The low-smoke halogen-free flexible busbar according to claim 3, characterized in that: A spiral spring (49) is fixedly installed on the surface of the movable rod (46), and the spiral spring (49) is fixedly installed on the inner wall of the connecting plate (45).

5. The low-smoke halogen-free flexible busbar according to claim 1, characterized in that: A connecting spring (54) is fixedly installed on the inner side of the sliding block (52), and the connecting spring (54) is fixedly installed inside the positioning block (51).

6. The low-smoke halogen-free flexible busbar according to claim 1, characterized in that: The limiting block (37) has a groove (370) inside, and the fixing block (43) has a strip groove (430) on the top.

7. The low-smoke halogen-free flexible busbar according to claim 1, characterized in that: The card sleeve (31) is L-shaped, and there are two sets of card sleeves (31), and the two sets of card sleeves (31) are symmetrical. The card sleeves (31) slide against each other inside the card sleeves (31) via a sliding plate (32).

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