CN111029028A - 一种防爆型特种电缆 - Google Patents
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Abstract
本发明公开了一种防爆型特种电缆,涉及电缆技术领域。本发明包括绕包圈和缆芯,绕包圈内壁之间固定连接有隔热绝缘填充层,隔热绝缘填充层一侧面均匀贯穿有若干通孔,导热杆位于通孔内部的一端固定连接有弧形导热板,弧形导热板外壁固定连接有缓冲弹簧,缓冲弹簧一端与绕包圈内壁固定连接,导热杆位于绕包圈外部的一端固定连接有弧形散热板。本发明通过隔热绝缘填充层、导热杆、弧形导热板、缓冲弹簧、弧形散热板和阻燃腔的设计,将电缆内部产生的热量传递至外部环境,提高了电缆的防火阻燃性能,增加了电缆的使用寿命,避免了现有的电缆在使用过程中局部过热,使绝缘层碳化,造成电路损坏,降低电缆使用寿命的问题。
Description
技术领域
本发明属于电缆技术领域,特别是涉及一种防爆型特种电缆。
背景技术
常用的多股导体线芯防爆电缆,一般包括六层保护层,由内而外分别为乙丙橡胶聚乙烯绝缘层、镀银镍丝屏蔽层、镀银铝带铠装层、聚全氟聚烯烃绝缘层、镀锌镍塑铜带复合包带层以及氯磺化聚乙烯护套层,该种电缆具有耐酸碱腐蚀、抗氧化以及防水防油、抗撕拉的特点。
现有的电缆在使用过程中电缆绝缘介质内部气隙在电场作用下产生游离使绝缘下降电缆内部气隙产生电游离造成局部过热,使绝缘层碳化,造成电路损坏,降低电缆的使用寿命,为此,我们提出一种防爆控制电缆。
发明内容
本发明的目的在于提供一种防爆型特种电缆,通过隔热绝缘填充层、通孔、导热杆、弧形导热板、缓冲弹簧、弧形散热板和阻燃腔的设计,解决了现有的电缆在使用过程中局部过热,使绝缘层碳化,造成电路损坏,降低电缆使用寿命的问题。
为解决上述技术问题,本发明是通过以下技术方案实现的:
本发明为一种防爆型特种电缆,包括绕包圈和缆芯;所述绕包圈内壁之间固定连接有隔热绝缘填充层,所述隔热绝缘填充层一侧面均匀贯穿有若干通孔,所述缆芯位于通孔内部,所述绕包圈周侧面均匀贯穿有导热杆,所述导热杆位于通孔内部的一端固定连接有弧形导热板,所述弧形导热板内壁与缆芯周侧面相接触,所述弧形导热板外壁固定连接有缓冲弹簧,所述缓冲弹簧套设在导热杆周侧面上,所述缓冲弹簧一端与绕包圈内壁固定连接,所述导热杆位于绕包圈外部的一端固定连接有弧形散热板。
进一步地,所述绕包圈外壁固定连接有屏蔽层,所述屏蔽层外壁固定连接有隔离层。
进一步地,所述隔离层外壁固定连接有波浪形支撑板,所述波浪形支撑板外侧面固定连接有轧纹金属套,所述隔离层外壁与轧纹金属套内壁之间形成有阻燃腔,所述阻燃腔内部注装有粉末阻燃剂。
进一步地,所述隔离层外壁固定连接有支撑弹簧,所述支撑弹簧套设在导热杆周侧面上,所述支撑弹簧一端与轧纹金属套内壁固定连接。
进一步地,所述轧纹金属套外壁固定连接有护套层,所述护套层周侧面均匀开设有凹槽,所述凹槽内壁与弧形散热板侧面滑动连接。
本发明具有以下有益效果:本发明通过隔热绝缘填充层、通孔、导热杆、弧形导热板、缓冲弹簧、弧形散热板和阻燃腔的设计,将缆芯隔离分布在绕包圈内的隔热绝缘填充层的通孔中,防止各个缆芯产生的热量相互传递,然后缆芯产生的热量传递至弧形导热板,弧形导热板通过导热杆将热量传递至弧形散热板,弧形散热板将热量传递至外部环境,从而将电缆内部产生的热量传递至外部环境,阻燃腔内部的粉末阻燃剂在电缆的外部燃烧破损后散落,防止火进一步燃烧到缆芯,提高了电缆的防火阻燃性能,增加了电缆的使用寿命,避免了现有的电缆在使用过程中局部过热,使绝缘层碳化,造成电路损坏,降低电缆使用寿命的问题。
当然,实施本发明的任一产品并不一定需要同时达到以上所述的所有优点。
附图说明
为了更清楚地说明本发明实施例的技术方案,下面将对实施例描述所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为一种防爆型特种电缆的结构示意图;
图2为图1的结构正视图;
图3为导热杆的结构示意图;
附图中,各标号所代表的部件列表如下:
1-绕包圈,2-缆芯,101-隔热绝缘填充层,102-通孔,103-导热杆,104-弧形导热板,105-缓冲弹簧,106-弧形散热板,107-屏蔽层,108-隔离层,109-波浪形支撑板,110-轧纹金属套,111-阻燃腔,112-支撑弹簧,113-护套层。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其它实施例,都属于本发明保护的范围。
请参阅图1-3,本发明为一种防爆型特种电缆,包括绕包圈1和缆芯2;绕包圈1内壁之间固定连接有隔热绝缘填充层101,隔热绝缘填充层101采用绝缘橡胶材质,隔热绝缘填充层101一侧面均匀贯穿有四个通孔102,缆芯2位于通孔102内部,绕包圈1周侧面均匀贯穿有导热杆103,导热杆103位于通孔102内部的一端固定连接有弧形导热板104,弧形导热板104内壁与缆芯2周侧面相接触,弧形导热板104外壁固定连接有缓冲弹簧105,缓冲弹簧105套设在导热杆103周侧面上,缓冲弹簧105一端与绕包圈1内壁固定连接,导热杆103位于绕包圈1外部的一端固定连接有弧形散热板106,缓冲弹簧105使弧形导热板104将缆芯2固定抵在通孔102内壁上。
其中,绕包圈1外壁固定连接有屏蔽层107,屏蔽层107采用铝塑复合带绕包而成,保证电缆的柔韧性的同时,提高电缆的防水耐腐蚀性能,屏蔽层107外壁固定连接有隔离层108,隔离层108采用阻燃护套材料制成。
其中,隔离层108外壁固定连接有波浪形支撑板109,提高了电缆的强度,波浪形支撑板109外侧面固定连接有轧纹金属套110,隔离层108外壁与轧纹金属套110内壁之间形成有阻燃腔111,阻燃腔111内部注装有粉末阻燃剂。
其中,隔离层108外壁固定连接有支撑弹簧112,支撑弹簧112套设在导热杆103周侧面上,支撑弹簧112一端与轧纹金属套110内壁固定连接,提高了电缆的强度。
其中,轧纹金属套110外壁固定连接有护套层113,护套层113采用陶瓷硅橡胶材料制成,护套层113周侧面均匀开设有凹槽,凹槽内壁与弧形散热板106侧面滑动连接。
本实施例的工作原理为:使用时,将缆芯2隔离分布在绕包圈1内的隔热绝缘填充层101的通孔102中,防止各个缆芯2产生的热量相互传递,然后缆芯2产生的热量传递至弧形导热板104,弧形导热板104通过导热杆103将热量传递至弧形散热板106,弧形散热板106将热量传递至外部环境,从而将电缆内部产生的热量传递至外部环境,阻燃腔111内部的粉末阻燃剂在电缆的外部燃烧破损后散落,防止火进一步燃烧到缆芯2,提高了电缆的防火阻燃性能,增加了电缆的使用寿命,避免了现有的电缆在使用过程中局部过热,使绝缘层碳化,造成电路损坏,降低电缆使用寿命的问题。
在本说明书的描述中,参考术语“一个实施例”、“示例”、“具体示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中,对上述术语的示意性表述不一定指的是相同的实施例或示例。而且,描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上公开的本发明优选实施例只是用于帮助阐述本发明。优选实施例并没有详尽叙述所有的细节,也不限制该发明仅为所述的具体实施方式。显然,根据本说明书的内容,可作很多的修改和变化。本说明书选取并具体描述这些实施例,是为了更好地解释本发明的原理和实际应用,从而使所属技术领域技术人员能很好地理解和利用本发明。本发明仅受权利要求书及其全部范围和等效物的限制。
Claims (5)
1.一种防爆型特种电缆,包括绕包圈(1)和缆芯(2);其特征在于:所述绕包圈(1)内壁之间固定连接有隔热绝缘填充层(101),所述隔热绝缘填充层(101)一侧面均匀贯穿有若干通孔(102),所述缆芯(2)位于通孔(102)内部,所述绕包圈(1)周侧面均匀贯穿有导热杆(103),所述导热杆(103)位于通孔(102)内部的一端固定连接有弧形导热板(104),所述弧形导热板(104)内壁与缆芯(2)周侧面相接触,所述弧形导热板(104)外壁固定连接有缓冲弹簧(105),所述缓冲弹簧(105)套设在导热杆(103)周侧面上,所述缓冲弹簧(105)一端与绕包圈(1)内壁固定连接,所述导热杆(103)位于绕包圈(1)外部的一端固定连接有弧形散热板(106)。
2.根据权利要求1所述的一种防爆型特种电缆,其特征在于,所述绕包圈(1)外壁固定连接有屏蔽层(107),所述屏蔽层(107)外壁固定连接有隔离层(108)。
3.根据权利要求2所述的一种防爆型特种电缆,其特征在于,所述隔离层(108)外壁固定连接有波浪形支撑板(109),所述波浪形支撑板(109)外侧面固定连接有轧纹金属套(110),所述隔离层(108)外壁与轧纹金属套(110)内壁之间形成有阻燃腔(111),所述阻燃腔(111)内部注装有粉末阻燃剂。
4.根据权利要求2所述的一种防爆型特种电缆,其特征在于,所述隔离层(108)外壁固定连接有支撑弹簧(112),所述支撑弹簧(112)套设在导热杆(103)周侧面上,所述支撑弹簧(112)一端与轧纹金属套(110)内壁固定连接。
5.根据权利要求3所述的一种防爆型特种电缆,其特征在于,所述轧纹金属套(110)外壁固定连接有护套层(113),所述护套层(113)周侧面均匀开设有凹槽,所述凹槽内壁与弧形散热板(106)侧面滑动连接。
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