CN102403076B - Lightning and short circuit protection type fuse resistor - Google Patents
Lightning and short circuit protection type fuse resistor Download PDFInfo
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- CN102403076B CN102403076B CN201110368988.3A CN201110368988A CN102403076B CN 102403076 B CN102403076 B CN 102403076B CN 201110368988 A CN201110368988 A CN 201110368988A CN 102403076 B CN102403076 B CN 102403076B
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Abstract
本发明提供了一种抗雷击及过短路型的熔断电阻器，涉及电阻器技术领域；包括一绝缘基体，所述绝缘基体的两端各设置有一金属帽，所述绝缘基体为圆柱状结构，所述绝缘基体缠绕有电阻丝，所述电阻丝的两端分别与所述绝缘基体两端的金属帽连接，所述绝缘基体两端的金属帽分别外接一引脚，所述绝缘基体的外层还设置有一层散热层，所述电阻丝包裹于所述散热层内；所述电阻丝为PTC材料制作而成的；其有益效果在于：该结构的电阻器既可以在雷击时使得电路得到保护，又可以使电路在过短路时得到保护，进一步确保了电路的安全性。
The invention provides an anti-lightning strike and over-short circuit type fuse resistor, which relates to the technical field of resistors; it includes an insulating base, and a metal cap is provided at both ends of the insulating base, and the insulating base is a cylindrical structure. The insulating base is wound with a resistance wire, and the two ends of the resistance wire are respectively connected to the metal caps at both ends of the insulating base, and the metal caps at both ends of the insulating base are connected with a pin respectively, and the outer layer of the insulating base is also A heat dissipation layer is provided, and the resistance wire is wrapped in the heat dissipation layer; the resistance wire is made of PTC material; the beneficial effect is that the resistor of this structure can protect the circuit when lightning strikes, It can also protect the circuit when it is short-circuited, further ensuring the safety of the circuit.
Description
【技术领域】【Technical field】
本发明涉及电阻器技术领域，尤其涉及一种抗雷击及过短路型的电阻器。The invention relates to the technical field of resistors, in particular to an anti-lightning strike and over-short circuit type resistor.
【背景技术】【Background technique】
目前的电阻器，在绝缘基体上缠绕电阻丝，通过电阻丝的长短来控制电阻的大小；但是这些电阻丝，电阻丝的直径较小的可以用于过短路保护，过短路时，直径较小的电阻丝瞬间电流增大融化而断开；但是电阻丝直径较小时却不能起到抗雷击的作用，抗雷击需要使用直径较大的电阻丝；藉此，现在的电阻器不能同时用于过短路保护及抗雷击。In the current resistors, the resistance wire is wound on the insulating substrate, and the resistance is controlled by the length of the resistance wire; but these resistance wires, the smaller diameter of the resistance wire can be used for short-circuit protection, and the diameter of the resistance wire is smaller when the short-circuit occurs. The instantaneous current of the resistance wire increases and melts and breaks; however, when the diameter of the resistance wire is small, it cannot play the role of anti-lightning strike, and the anti-lightning strike needs to use a resistance wire with a larger diameter; thus, the current resistors cannot be used at the same time. Short circuit protection and anti-lightning strike.
【发明内容】【Content of invention】
本发明的目的在于克服目前的电阻器不能同时用于过短路与抗雷击保护之不足提供的一种电阻器。The object of the present invention is to provide a resistor that overcomes the shortage that the current resistors cannot be used for over-short circuit and anti-lightning protection at the same time.
本发明是通过以下技术方案来实现的：一种抗雷击及过短路的熔断电阻器，包括一绝缘基体，所述绝缘基体的两端各设置有一金属帽，所述绝缘基体为圆柱状结构，所述绝缘基体缠绕有电阻丝，所述电阻丝的两端分别与所述绝缘基体两端的金属帽连接，所述绝缘基体两端的金属帽分别外接一引脚，所述绝缘基体的外层还设置有一层散热层，所述电阻丝包裹于所述散热层内；所述电阻丝为PTC材料制作而成的。The present invention is achieved through the following technical proposals: a lightning strike and over-short circuit fusing resistor, comprising an insulating base, a metal cap is provided at both ends of the insulating base, the insulating base is a cylindrical structure, The insulating base is wound with a resistance wire, and the two ends of the resistance wire are respectively connected to the metal caps at both ends of the insulating base, and the metal caps at both ends of the insulating base are connected with a pin respectively, and the outer layer of the insulating base is also A heat dissipation layer is provided, and the resistance wire is wrapped in the heat dissipation layer; the resistance wire is made of PTC material.
下面对以上技术方案作进一步阐述：The above technical scheme is further elaborated below:
进一步地，所述绝缘基体为陶瓷材料制作而成的。Further, the insulating base is made of ceramic material.
更进一步地，所述金属帽为镀锡铁帽。Furthermore, the metal cap is a tinned iron cap.
更进一步地，所述引脚为镀锡铜包钢线。Furthermore, the pins are tinned copper-clad steel wires.
本发明的有益效果在于：其一、该结构的电阻器，其电阻丝为PTC材料制作而成的；PTC材料制作的电阻丝，当电流瞬间增大的时候，电阻丝发热，其阻值也变大，随之电流将减小；当电流瞬间变得非常大的时候，电阻丝温度将非常高，此时，PTC材料制作的电阻丝将会被熔断，且熔断时无爆炸声、无火花；针对上述PTC材料制作的电阻丝，当遇雷击电压时，电流瞬间增大，电阻丝发热，阻值也随之变大，整过电路的电流将变小，藉此，使得电路在雷击时得到保护；当过短路时，电路中的电流瞬间变得相当的大，此时，PTC材料制作的电阻丝将会熔断，出现断路，且不会产生爆炸声及火花。藉此，整个电路的电子元器件也将不会被烧坏而得到保护；其二、所述引脚为镀锡铜包钢线，与现有技术中使用镀锡铜作为引脚相比较，用镀锡铜包钢线作为引脚节约了成本。The beneficial effects of the present invention are: one, the resistance wire of the resistor of this structure is made of PTC material; When the current becomes very large instantly, the temperature of the resistance wire will be very high. At this time, the resistance wire made of PTC material will be fused, and there will be no explosion sound or spark when it is fused ; For the resistance wire made of the above-mentioned PTC material, when the lightning strike voltage is encountered, the current increases instantaneously, the resistance wire heats up, and the resistance value also increases accordingly, and the current passing through the circuit will become smaller. It is protected; when there is an over-short circuit, the current in the circuit becomes quite large instantly. At this time, the resistance wire made of PTC material will be fused, and there will be an open circuit, and there will be no explosion and sparks. Thereby, the electronic components and parts of the whole circuit will also not be burned out and be protected; Its two, described pin is a tinned copper-clad steel wire, compared with using tinned copper as the pin in the prior art, Using tinned copper clad steel wire as the lead saves cost.
【附图说明】【Description of drawings】
图1为本发明的整体结构示意图。Figure 1 is a schematic diagram of the overall structure of the present invention.
附图标记：1、绝缘基体；2、金属帽；3、电阻丝；4、引脚；5、散热层。Reference signs: 1. insulating base; 2. metal cap; 3. resistance wire; 4. pin; 5. heat dissipation layer.
【具体实施方式】【Detailed ways】
下面结合附图及具体实施方式对本发明做进一步描述：The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:
参照图1所示，该实施例的固定熔断电阻器，它包括一绝缘基体1，所述绝缘基体1的两端各设置有一金属帽2，所述金属帽2为镀锡铁帽；所述绝缘基体1为圆柱状结构，绝缘基体1为陶瓷材料制作而成的；所述绝缘基体1缠绕有电阻丝3，所述电阻丝3的两端分别与所述绝缘基体1两端的金属帽2连接，所述绝缘基体1两端的金属帽2分别外接一引脚4，所述引脚4为镀锡铜包钢线；所述绝缘基体1的外层还设置有一层散热层5，所述电阻丝3包裹于所述散热层5内；所述电阻丝3为PTC材料制作而成的。Referring to Fig. 1, the fixed fuse resistor of this embodiment includes an insulating base 1, and a metal cap 2 is respectively arranged at both ends of the insulating base 1, and the metal cap 2 is a tin-plated iron cap; The insulating matrix 1 is a cylindrical structure, and the insulating matrix 1 is made of ceramic material; the insulating matrix 1 is wound with a resistance wire 3, and the two ends of the resistance wire 3 are connected with the metal caps 2 at both ends of the insulating matrix 1 respectively. connected, the metal caps 2 at both ends of the insulating base 1 are respectively externally connected to a pin 4, and the pin 4 is a tinned copper-clad steel wire; the outer layer of the insulating base 1 is also provided with a heat dissipation layer 5, the The resistance wire 3 is wrapped in the heat dissipation layer 5; the resistance wire 3 is made of PTC material.
该结构的电阻器，其电阻丝3为PTC材料制作而成的；PTC材料制作的电阻丝3，当电流瞬间增大的时候，电阻丝3发热，其阻值也变大，随之电流将减小；当电流瞬间变得非常大的时候，电阻丝3温度将非常高，此时，PTC材料制作的电阻丝3将会被熔断，且熔断时无爆炸声、无火花；针对上述PTC材料制作的电阻丝3，当遇雷击电压时，电流瞬间增大，电阻丝3发热，阻值也随之变大，整过电路的电流将变小，藉此，使得电路在雷击时得到保护；当过短路时，电路中的电流瞬间变得相当的大，此时，PTC材料制作的电阻丝3将会熔断，出现断路，且熔断时无爆炸声、无火花；藉此，整个电路的电子元器件也将不会被烧坏而得到保护；另外，所述引脚4为镀锡铜包钢线，与现有技术中使用镀锡铜作为引脚4相比较，用镀锡铜包钢线作为引脚4节约了成本。The resistance wire 3 of the resistor with this structure is made of PTC material; the resistance wire 3 made of PTC material, when the current increases instantaneously, the resistance wire 3 heats up, and its resistance value also becomes larger, and the current will decrease accordingly. decrease; when the current becomes very large in an instant, the temperature of the resistance wire 3 will be very high. At this time, the resistance wire 3 made of PTC material will be fused, and there will be no explosion sound or spark when it is fused; for the above-mentioned PTC material The manufactured resistance wire 3, when encountering the lightning strike voltage, the current increases instantaneously, the resistance wire 3 generates heat, and the resistance value also increases accordingly, and the current passing through the circuit will decrease, so that the circuit is protected when lightning strikes; When an over-short circuit occurs, the current in the circuit instantly becomes quite large. At this time, the resistance wire 3 made of PTC material will fuse, and an open circuit will occur, and there will be no explosion sound or spark when the fuse is broken; Components will also be protected from being burned out; in addition, the pin 4 is a tinned copper-clad steel wire, compared with the use of tinned copper as the pin 4 in the prior art, tinned copper clad steel wire as pin 4 to save cost.
根据上述说明书的揭示和教导，本发明所属领域的技术人员还可以对上述实施方式进行适当的变更和修改。因此，本发明并不局限于上面揭示和描述的具体实施方式，对本发明的一些修改和变更也应当落入本发明的权利要求的保护范围内。此外，尽管本说明书中使用了一些特定的术语，但这些术语只是为了方便说明，并不对本发明构成任何限制。According to the disclosure and teaching of the above specification, those skilled in the art to which the present invention pertains can also make appropriate changes and modifications to the above embodiment. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110368988.3A CN102403076B (en) | 2011-11-17 | 2011-11-17 | Lightning and short circuit protection type fuse resistor |
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| CN201110368988.3A CN102403076B (en) | 2011-11-17 | 2011-11-17 | Lightning and short circuit protection type fuse resistor |
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| CN102403076A CN102403076A (en) | 2012-04-04 |
| CN102403076B true CN102403076B (en) | 2015-07-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103219114B (en) * | 2013-03-25 | 2016-04-13 | 广东福德电子有限公司 | A kind of quenching resistance |
| CN105070432A (en) * | 2015-08-12 | 2015-11-18 | 吴江佳亿电子科技有限公司 | Resistor convenient to debug |
| CN106298113A (en) * | 2016-09-23 | 2017-01-04 | 重庆依凯科技有限公司 | fusing resistor |
| CN107978405A (en) * | 2017-11-07 | 2018-05-01 | 深圳市东凌电子有限公司 | A kind of wire resistor and its preparation process with circuit protection |
| CN113035664B (en) * | 2021-02-06 | 2024-01-12 | 安徽省昌盛电子有限公司 | Insulated wire winding mould type temperature fusing resistor |
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| CN2233617Y (en) * | 1995-11-14 | 1996-08-21 | 刘少锋 | High-temp, high-voltage and high-power wire-wound resistor |
| US6191678B1 (en) * | 1997-09-24 | 2001-02-20 | Cooper Industries, Inc. | Time lag fuse |
| CN201503736U (en) * | 2009-08-18 | 2010-06-09 | 蚌埠市双环电子集团有限公司 | Fast-fusing anti-lightning-surge wire-wound resistor |
| CN201893210U (en) * | 2010-09-10 | 2011-07-06 | 东莞市福德电子有限公司 | Metal piece noninductive cement resistor |
| CN202405025U (en) * | 2011-11-17 | 2012-08-29 | 深圳市格瑞特电子有限公司 | Lightning-proof and over-short circuit fusing resistor |
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- 2011-11-17 CN CN201110368988.3A patent/CN102403076B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2233617Y (en) * | 1995-11-14 | 1996-08-21 | 刘少锋 | High-temp, high-voltage and high-power wire-wound resistor |
| US6191678B1 (en) * | 1997-09-24 | 2001-02-20 | Cooper Industries, Inc. | Time lag fuse |
| CN201503736U (en) * | 2009-08-18 | 2010-06-09 | 蚌埠市双环电子集团有限公司 | Fast-fusing anti-lightning-surge wire-wound resistor |
| CN201893210U (en) * | 2010-09-10 | 2011-07-06 | 东莞市福德电子有限公司 | Metal piece noninductive cement resistor |
| CN202405025U (en) * | 2011-11-17 | 2012-08-29 | 深圳市格瑞特电子有限公司 | Lightning-proof and over-short circuit fusing resistor |
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Effective date of registration: 20200601 Address after: Heyuan new greit Electronics Co., Ltd., building B, inner plant, No. 39, Keliu Road North, Xingye Avenue, Heyuan hi tech Development Zone, 517000 Guangdong Province Patentee after: Heyuan New Great Electronics Co.,Ltd. Address before: 518109 Guangdong city of Shenzhen Province on the east side of Baoan District Road, Longhua street view of Shenzhen city investment real estate development company limited A building third, fourth B zone Patentee before: SHENZHEN GREAT ELECTRONICS Co.,Ltd. |
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Address after: 245600 Electronic Industrial Park, economic development zone, Qishan Town, Qimen County, Huangshan City, Anhui Province Patentee after: Anhui Great Electronics Co.,Ltd. Address before: 517000 Building B, Inner Factory Building, No. 39, Keliu Road North, Xingye Avenue West, Heyuan High tech Development Zone, Guangdong Province Heyuan New Greete Electronics Co.,Ltd. Patentee before: Heyuan New Great Electronics Co.,Ltd. |
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Denomination of invention: Lightning protection and overcurrent short-circuit type fuse resistor Granted publication date: 20150708 Pledgee: Huishang Bank Co.,Ltd. Qimen Branch Pledgor: Anhui Great Electronics Co.,Ltd. Registration number: Y2026980000980 |