WO2015035900A1 - 预装发热电阻丝的单发烟花底座及对应固定基座 - Google Patents

预装发热电阻丝的单发烟花底座及对应固定基座 Download PDF

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Publication number
WO2015035900A1
WO2015035900A1 PCT/CN2014/086139 CN2014086139W WO2015035900A1 WO 2015035900 A1 WO2015035900 A1 WO 2015035900A1 CN 2014086139 W CN2014086139 W CN 2014086139W WO 2015035900 A1 WO2015035900 A1 WO 2015035900A1
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WIPO (PCT)
Prior art keywords
base
heating resistor
resistance wire
resistor wire
fireworks
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PCT/CN2014/086139
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English (en)
French (fr)
Inventor
张帆
诺克斯⋅迈克尔
Original Assignee
长沙凯维科技有限公司
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Application filed by 长沙凯维科技有限公司 filed Critical 长沙凯维科技有限公司
Priority to EP14843852.6A priority Critical patent/EP3045858B1/en
Publication of WO2015035900A1 publication Critical patent/WO2015035900A1/zh
Priority to US15/068,705 priority patent/US9739577B2/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B4/00—Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes
    • F42B4/20—Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes characterised by having holder or support other than casing, e.g. whirler or spike support
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/103—Mounting initiator heads in initiators; Sealing-plugs

Definitions

  • the invention relates to a fireworks base and a corresponding fixed base, in particular to a single-fired fireworks base and corresponding belt circuit with pre-installed heating resistance wire which is safe and convenient to use, saves the amount of propellant and can improve the ignition reliability and the effect consistency.
  • Export the fixed base of the connector in particular to a single-fired fireworks base and corresponding belt circuit with pre-installed heating resistance wire which is safe and convenient to use, saves the amount of propellant and can improve the ignition reliability and the effect consistency.
  • the electric ignition head is used to directly ignite the propellant during the discharge to achieve instant ignition.
  • the first one is to insert a plastic part with a galvanic ignition head in the wall of the fireworks tube, and directly pass the propellant part. The method has the worst effect.
  • the over-fire hole is small and easy to block, resulting in ignition failure.
  • the second type is a plastic base with a pre-charged ignition head connected to the empty space, instead of the bottom mud installed at the bottom of the single fireworks.
  • the method also has its shortcomings.
  • the third type is a plastic base with an electric ignition head connection vacancy placed at the bottom, and a through hole to the propellant portion at the upper portion of the connection vacancy. This method ensures the integrity of the tube wall, but there is also a too small fire hole. problem.
  • the single fireworks in the current industry are all in the form of a single unit. To achieve the discharge, two steps must be completed: assembling the electric ignition head on site and fixing the single fireworks at the required angle. Due to the large amount of single-shot fireworks in the discharge, the workload of assembling the electric ignition head and connecting to the discharge equipment is huge; the single-fireworks are all multi-angle discharge, and the fixing method is generally a wood frame insertion type or a metal sector type binding type. The operation is time consuming and it is difficult to guarantee an accurate launch angle.
  • the technical problem to be solved by the present invention is to provide a single pre-assembled heating resistance wire which enables the propellant force to be completely used on the lift of the effect component, has high safety factor, stable and reliable performance, saves the amount of propellant, and is convenient and quick to use. Fireworks base and corresponding fixed base.
  • the present invention provides a single-fired fireworks base and a corresponding fixed base, which comprise a plastic base, a heating resistance wire and two metal conductors, and a heating resistor wire slot is arranged on the top of the plastic base.
  • the heating resistor wire is fixedly located in the heating resistor wire slot and has two ends electrically connected to the two metal conductors, and the other ends of the two metal conductors are electrically connected to the two plate electrodes respectively.
  • the bottom of the plastic base is provided with an upper snap structure
  • the fixed base is provided with a lower snap structure
  • the lower snap structure and the plastic base are The snap-fit structure is correspondingly engaged
  • the top of the fixed base is provided with two elastic electrodes, and the two elastic electrodes respectively respectively connect and electrically connect the two plate-shaped electrodes of the plastic base.
  • the elastic electrode is electrically connected to a socket fixed to the fixed base.
  • the top of the plastic base is a bowl having a high circumference and a middle bottom, and the heating resistor wire groove is disposed at a bowl-shaped bottom of the plastic base.
  • the heating resistor wire is covered with a pro-weld metal layer to achieve reliable soldering and protection.
  • the heating resistor wire is coated with an anti-oxidation protective film, and the anti-oxidation protection film fixes the heating resistor wire on the circuit board.
  • the plastic base is provided with a positioning card slot
  • the fixed base is provided with an elastic positioning piece, and the elastic positioning piece is caught in the positioning card slot.
  • the fixed base is provided with a plurality of lower snap-on structures of different diameter sizes and not interfering with each other.
  • the heating resistor wire is a spiral resistance wire having good electrothermal conversion capability.
  • the single-shot fireworks base and the corresponding fixed base pre-installed with the heating resistance wire are pre-installed with the above-mentioned technical scheme, and the single-shot fireworks base pre-installed with the heating resistance wire is fixed on the circuit board by coating an anti-oxidation protective film.
  • the anti-oxidation protective film fixedly adheres the resistance wire to the circuit board, so that it has a certain structure, It can resist the slight rubbing of the propellant.
  • the top of the plastic base has a bowl-like structure with a high central bottom around it, and the heating wire groove is located at the bottom of the center.
  • the heating resistor wire groove of the plastic base has a through groove leading to the bottom, and the circuit board soldered with the heating resistance wire and the metal conductor is placed in the heating resistance wire groove, wherein the heating wire faces upward, and the two metal conductors are fixed downward. In the slot. Secure the board by gluing and seal the through slots. The bottom of the metal conductor is soldered to the two plate electrodes with the electrodes facing down.
  • the bowl-shaped bottom of the plastic base has reinforcing ribs, which together with the groove wall of the groove improve the structural performance of the plastic base.
  • the upper snap-on structure on the plastic base corresponds to the lower snap-fit structure of the fixed base.
  • the plastic base pre-installed with the heating resistance wire is inserted into the fireworks launching tube, and the plastic base and the fireworks launching tube can be fixed by glue or nail, and then the propellant, the perforated paper and the effect component are filled in order. Seal the paper.
  • the fixing base equipped with the elastic electrode and the socket is fixed on the wooden board of different angles, and the elastic electrode on the fixed base is connected to the discharge device by the wire with the corresponding connector.
  • the single-fired fireworks equipped with the plastic base is snap-fitted along the upper snap-fit structure of the plastic base and the lower snap-fit structure of the fixed base, and the elastic electrodes on the fixed base are reliably in contact with the plate-shaped electrodes on the plastic base.
  • the heating resistor wire circuit is placed along the metal electrode, the plate electrode, the elastic electrode, the socket, and the wire to the discharge device. When discharging, the device conducts current to the heating resistance wire and instantaneously generates heat, directly igniting the propellant, thereby achieving single fireworks discharge.
  • the bowl-shaped plastic base structure can better exert the propellant force on the rising direction of the effect component, so the utility model only needs half of the propellant. Achieve the same launch height, reduce the weight of the product, reduce the amount of smoke during launch, reduce the launch volume, improve safety, and the performance is stable and reliable; the preset heating resistor wire does not have any dangerous components, not because of friction, impact The false triggering phenomenon ensures the safety in the production, storage, transportation and use of the utility model; the fixed base can be reused to improve resource utilization and reduce the use cost; the assembly and use are simple and quick, and only the assembly needs to be fixed.
  • the flat wood board of the pedestal adjusts the angle to realize precise angle assembly of multiple single fireworks, and the single fireworks card is fixed on the pedestal to realize reliable electrical connection, saving a lot of human resources.
  • the present invention is a pre-assembled heating resistance wire for pre-assembling a heating resistor wire which is used for fully applying the propellant force to the lift of the effect component, has a high safety factor, stable and reliable performance, and is convenient and quick to use. Fireworks base and corresponding fixed base.
  • FIG. 1 is a schematic structural view of an embodiment of the present invention.
  • FIG. 2 is an anatomical view of a single fireworks base according to an embodiment of the present invention.
  • FIG 3 is a schematic view of the bottom of a single fireworks base according to an embodiment of the present invention.
  • FIG. 4 is a schematic exploded view of a fixed base according to an embodiment of the present invention.
  • FIG. 5 is an anatomical view showing a single-shot fireworks equipped with a plastic base fixed on a fixed base according to an embodiment of the present invention.
  • the top of the plastic base 1 is a bowl having a high circumference and a middle bottom.
  • the bottom end of the plastic base 1 is provided with a heating resistor wire groove 4 and a plastic base 1 is provided.
  • a through groove 16 leads from the heating resistor wire groove 4 to the bottom of the plastic base 1.
  • the circuit board is used as the circuit board 15, the two pin headers are used as the metal conductors 12, and the circuit board with two independent large-area pads is used as the plate electrode 13, and the two ends of the heating resistor wire 3 are respectively
  • the two pin headers 12 are electrically connected and fixed on the circuit board 15.
  • the heating resistor wire 3 is a spiral resistance wire with good electric heat conversion capability, and the heating resistor wire 3 is covered with a pro-weld metal plating layer, and the heating resistance wire is 3 is coated with an anti-oxidation protective film, and the anti-oxidation protective film fixes the heating resistor wire 3 on the circuit board 15.
  • the circuit board 15 is adhesively fixed in the heating resistor wire slot 4 and the heating resistor wire 3 faces upward, and the two pin headers 12 are positioned downward in the through slot 16, in the lower part of the through slot 16, two plate electrodes 13 and two rows The pins 12 are electrically connected respectively.
  • the bottom edge of the plastic base 1 has an upper snap structure 17 .
  • the bottom of the plastic base 1 has a positioning slot 11
  • the bottom of the plastic base 1 has a reinforcing rib 14 .
  • the heating resistor wire 3 is used as a load, and the two ends thereof are respectively connected to the two pin headers 12 through a circuit, and are soldered to the circuit board 15, and the heating resistor wire 3 is a spiral resistor with good electric heat conversion capability.
  • the plating reliability is increased by the micro-plating of the anti-tin metal plating layer, and the nitrocellulose varnish is coated on the circuit board 15 to which the heating resistor wire 3 is soldered to protect the heating resistor wire 3.
  • the top of the plastic base 1 is in the shape of a bowl having a high central bottom, and the heating resistor wire groove 4 is located at the lowest point in the center of the bowl.
  • the groove wall of the through groove 16 is used together with the reinforcing rib 14 to improve the structural performance of the plastic base 1.
  • the circuit board 15 soldered to the heating resistor wire 3 and the pin header 12 is placed in the heating resistor wire slot 4 of the plastic base 1, wherein the heating resistor wire 3 faces upward, and the pin header 12 is fixed downward in the through slot 16 of the plastic base 1. In the middle, the circuit board 15 is fixed in the heating wire resistance groove 4 with glue.
  • a circuit board with two plate electrodes 13 is welded to the other end of the header 12, and the plate electrode 13 faces downward.
  • the upper part of the fixed base 2 has a plurality of lower snap-fit structures 8 of different diameters and do not interfere with each other, and correspondingly abuts with the upper snap-fit structure 17 of the plastic base 1, and the fixed base 2 has two elastic electrodes 5 thereon.
  • the elastic electrode 5 is composed of a copper post and a spring.
  • the copper post is in contact with the plate electrode 13 of the plastic base 1 to be plated with gold or a stainless steel cap to prevent oxidation, and the spring is welded to the lead-out circuit board.
  • the four fixed bases 2 are integrally arranged in a single line, and the two sides have screw fixing holes 9.
  • two RJ45 network interfaces are used as the sockets 10 for soldering on the lead-out circuit board, which are respectively located at the two end sides of the fixed base 2, and the fixed base 2 has elastic positioning pieces 7.
  • the plastic base 1 when assembling a single fireworks, the plastic base 1 is inserted into the barrel 19 of the single fireworks, and the barrel 19 is fixed to the plastic base 1 by glue or nail, and the propellant 21 is filled from the other end of the barrel 19 and The bowl falls into the bowl of the plastic base 1 and is in good contact with the heating resistor wire 3, and then the perforated separator sheet 20, the effect member 18 and the sealing sheet are sequentially filled.
  • the fixed base 2 is first fixed on the wooden board at different angles along the screw hole position 9, and the CAT5 wire is inserted into the RJ45 socket 10 to connect the elastic electrode 5 on the fixed base to the discharge device.
  • the single-shot fireworks equipped with the plastic base 1 are snap-fitted along the upper snap-fit structure 17 of the plastic base 1 and the lower snap-fit structure 8 of the fixed base 2, and the elastic positioning piece 7 on the fixed base 2 is snapped into the plastic base.
  • the elastic electrode 5 on the fixed base 2 is in reliable contact with the plate electrode 13 on the plastic base 1, and the circuit of the heating resistor wire 3 is along the metal conductor 12, the plate electrode 13, and the elastic electrode 5.
  • connector 10 wire to the discharge device. When discharging, the device conducts current to the heating resistor wire 3 and instantaneously generates heat, and directly ignites the propellant 21, thereby achieving single fireworks discharge.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)
  • Fuses (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

一种预装发热电阻丝的单发烟花底座及对应固定基座，塑料底座（1）顶部设有发热电阻丝槽（4），发热电阻丝（3）固定位于发热电阻丝槽（4）中且其两端分别与二根金属导体（12）电连接，二根金属导体（12）的另一端与二块板状电极（13）分别电连接并固定在塑料底座（1）的底部，塑料底座（1）的底部设有上卡接结构（17），固定基座（2）设有下卡接结构（8），下卡接结构（8）与塑料底座（1）的上卡接结构（17）对应卡接，固定基座（2）顶部设有二个弹性电极（5），二个弹性电极（5）分别对正塑料底座（1）的二块板状电极（13）并电连接，弹性电极（5）电连接到固定在固定基座（2）上的接插口（10）。该结构使发射药作用力完全用在效果部件的升空上且安全系数高、性能稳定可靠、使用方便快捷。

Description

预装发热电阻丝的单发烟花底座及对应固定基座
技术领域
本发明涉及一种烟花底座及对应固定基座，特指一种使用安全方便，节省发射药数量并且能提高点火可靠性与效果一致性的预装发热电阻丝的单发烟花底座及对应带电路导出接插口的固定基座。
背景技术
在烟花燃放中，除开礼花弹，单发烟花的精确燃放对于燃放节奏控制起着至关重要的作用。由于其点火精度要求较高，燃放时多用电点火头直接引燃发射药的方式实现瞬间点火。目前单发烟花接驳电点火头的方式主要有三种：第一种是通过在烟花筒壁上开孔，装入带电点火头接驳空位的塑料件，直通发射药部分。该法效果最差，为了防止发射药外漏，过火孔较小，易堵塞，导致点火失败；第二种是预置带电点火头接驳空位的塑料底座，代替底泥装在单发烟花底部，仍需要在筒壁对应底座空位处打孔。该法也有其缺点，一是筒壁打孔精度要求较高，须与底座上孔位完全对应，二是部分发射药会落入电点火头空位中，占据一定空间，导致电点火头难以插入；第三种是将电点火头接驳空位放在底部的塑料底座，在接驳空位上部有一通孔到发射药部分，该方法保证了筒壁的完整性，但是也存在过火孔过小的问题。
由于采用电点火头点火，当前所有单发烟花点火都有或大或小的过火孔，导致发射时，发射力并未全部作用到效果部件的升空上，部分力量通过过火孔外泻，升空高度的一致性难以保证，厂家多通过增加发射药含量来弥补，相应也增加了该类产品的危险性。
当前行业内的单发烟花，均以单体形式存在，要实现燃放，必须完成二个步骤：现场装配电点火头和按需要的角度固定单发烟花。由于燃放中单发烟花用量非常多，所以装配电点火头和连接到燃放设备的工作量巨大；单发烟花均为多角度燃放，固定方式一般采用木框架插入式或金属扇形架绑定式，操作耗时，而且难以保证精确的发射角度。
发明内容
本发明所要解决的技术问题是提供一种使发射药作用力完全用在效果部件的升空上且安全系数高、性能稳定可靠、节省发射药数量、使用方便快捷的预装发热电阻丝的单发烟花底座及对应固定基座。
为了解决上述技术问题，本发明提供的预装发热电阻丝的单发烟花底座及对应固定基座，包括塑料底座、发热电阻丝和二根金属导体，塑料底座顶部设有发热电阻丝槽，所述的发热电阻丝固定位于所述的发热电阻丝槽中且其两端分别与二根所述的金属导体电连接，二根所述的金属导体的另一端与二块板状电极分别电连接并固定在所述的塑料底座的底部，所述的塑料底座的底部设有上卡接结构，固定基座设有下卡接结构，所述的下卡接结构与所述的塑料底座的上卡接结构对应卡接，所述的固定基座顶部设有二个弹性电极，二个所述的弹性电极分别对正所述的塑料底座的二块所述的板状电极并电连接，所述的弹性电极电连接到固定在所述的固定基座上的接插口。
所述的塑料底座的顶部为周边高、中间底的碗状，所述的发热电阻丝槽设在所述的塑料底座的碗状底部。
在所述的发热电阻丝上覆有亲焊金属层，达到可靠焊接与保护作用。
所述的发热电阻丝涂覆有一层抗氧化保护膜，所述的抗氧化保护膜将所述的发热电阻丝固定在所述的电路板上。
所述的塑料底座上设有定位卡槽，所述的固定基座上设有弹性定位片，所述的弹性定位片卡在所述的定位卡槽内。
不少于一个的所述的固定基座组合成整体。
所述的固定基座上设有多个不同直径尺寸且互不干扰的下卡接结构。
所述的发热电阻丝为电热转换能力良好的螺旋状电阻丝。
采用上述技术方案预装发热电阻丝的单发烟花底座及对应固定基座，预装发热电阻丝的单发烟花底座，通过涂覆一层抗氧化保护膜将电阻丝固定在电路板上，可有效防止电阻丝与火药直接接触，而其本身极薄且易于燃烧，不会影响电阻丝的点火性能；抗氧化保护膜将电阻丝固定粘附在电路板上，使其具备一定的结构性，能抵抗与发射药的轻度挂擦。塑料底座顶部呈周围高中间底的碗状结构，发热丝槽位于中央底部。填入发射药时，发射药会聚集在碗中，与位于中央底部的电路板上的发热电阻丝有效接触，同时碗状结构有利于发射力向中央集中，达到更好的升空高度。塑料底座的发热电阻丝槽中有一个通槽通向底部，焊接好发热电阻丝和金属导体的电路板放置在发热电阻丝槽中，其中发热丝面朝上，二根金属导体朝下固定在通槽中。通过胶粘固定电路板并将通槽密封。金属导体底部与二块板状电极焊接，电极面朝下。 塑料底座的碗状底部有加强筋，与通槽的槽壁一起提高塑料底座的结构性能。塑料底座上的上卡接结构与固定基座的下卡接结构对应，装配时塑料底座卡接在固定基座上，固定基座上的二个弹性电极与塑料底座的二块板状电极可靠接触，同时固定基座上的弹性定位片卡入到塑料底座的定位卡槽中，防止塑料底座在燃放时因振动脱离固定基座。
装配时，将预装有发热电阻丝的塑料底座插入到烟花发射筒中，可通过胶水或钉子将塑料底座与烟花发射筒固定，然后按序填入发射药、带孔隔离纸片、效果部件及密封纸片即可。
使用时，将装配有弹性电极与接插口的固定基座固定在不同角度的木板上，用带有对应接插头的导线将固定基座上的弹性电极连接到燃放设备。将所述装配有塑料底座的单发烟花沿塑料底座的上卡接结构与固定基座的下卡接结构卡接固定，固定基座上的弹性电极与塑料底座上的板状电极可靠接触，将发热电阻丝电路沿金属电极、板状电极、弹性电极、接插口、导线到燃放设备。燃放时，设备将电流导通到发热电阻丝上并瞬间发热，直接引燃发射药，从而实现单发烟花燃放。
与传统单发烟花相比，由于发射药腔体完全密封，碗状的塑料底座结构将发射药作用力更好地作用到效果部件的上升方向，因而本实用新型仅需要一半的发射药即可达到同样的发射高度，减轻了产品重量，减少了发射时的烟雾量，降低了发射音量，提高安全性，而且性能稳定可靠；预置的发热电阻丝没有任何危险成分，不会因为摩擦、撞击而产生误触发现象，保证了该实用新型生产、贮藏、运输和使用中的安全性；固定基座可重复使用，提高资源利用率，减少使用成本；装配和使用简单快捷，仅需将装配固定基座的平直木板调整角度，就可实现多个单发烟花的精确角度装配，而且将单发烟花卡接固定在基座上即实现可靠电连接，节省大量人力资源。
综上所述，本发明是一种使发射药作用力完全用在效果部件的升空上且安全系数高、性能稳定可靠、使用方便快捷的预装发热电阻丝的预装发热电阻丝的单发烟花底座及对应固定基座。
附图说明
图1是本发明实施例的结构示意图。
图2 是本发明实施例的单发烟花底座解剖示意图。
图3是本发明实施例的单发烟花底座底部示意图。
图4是本发明实施例的固定基座解剖示意图。
图5是本发明实施例装配有塑料底座的单发烟花固定在固定基座上的解剖示意图。
具体实施方式
下面结合附图和具体实施方式对本发明作进一步说明。
参见图1、图2和图3，塑料底座1的顶部为周边高、中间底的碗状，塑料底座1顶部的碗状底端设有发热电阻丝槽4，在塑料底座1上设有一个从发热电阻丝槽4中通向塑料底座1的底部的通槽16。本实施例中将电路板作为电路板15，将二根排针作为金属导体12，将带有二块独立大面积焊盘的电路板作为板状电极13，发热电阻丝3的两端分别与二根排针12电连接并固定在电路板15上，本实施例中发热电阻丝3为电热转换能力良好的螺旋状电阻丝，在发热电阻丝3上覆有亲焊金属镀层，发热电阻丝3上涂覆有一层抗氧化保护膜，抗氧化保护膜将发热电阻丝3固定在电路板15上。电路板15胶粘固定在发热电阻丝槽4中且发热电阻丝3朝上，二根排针12朝下定位于通槽16中，在通槽16下部，二块板状电极13与二根排针12分别电连接，塑料底座1的底部边缘有上卡接结构17，塑料底座1的底有定位卡槽11，塑料底座1的底部有加强筋14。
参见图2和图3，发热电阻丝3作为负载，其二端分别与二根排针12通过电路连接，一并焊接在电路板15上，发热电阻丝3是电热转换能力良好的螺旋状电阻丝，对于锡焊性能不佳的发热电阻丝3，通过微量电镀亲锡金属镀层增加电镀可靠性，在焊接了发热电阻丝3的电路板15上涂覆硝基清漆以保护发热电阻丝3。塑料底座1的顶部是周围高中央底的碗状，发热电阻丝槽4位于碗状中央最低处，通槽16的槽壁与加强筋14一起用于提高塑料底座1的结构性能。
将焊好发热电阻丝3与排针12的电路板15放入塑料底座1的发热电阻丝槽4中，其中发热电阻丝3朝上，排针12朝下固定在塑料底座1的通槽16中，用胶水将电路板15固定在发热丝电阻槽4中。
在通槽16的底部，将带有二块板状电极13的电路板焊接在排针12的另一端，且板状电极13朝下。
参见图4，固定基座2上部有多个不同直径尺寸且互不干扰的下卡接结构8，与塑料底座1的上卡接结构17对应对接，固定基座2上有二个弹性电极5，本实施例中弹性电极5是由铜柱与弹簧焊接组成，铜柱与塑料底座1的板状电极13接触部分可镀金或加不锈钢帽以防止氧化，弹簧焊接在导出电路板上。本实施例中将四个固定基座2一字排开组合在一体，二边有螺丝固定孔位9。本实施例中使用二个RJ45网络接口作为接插口10焊接在导出电路板上，分别位于固定基座2二端侧面，固定基座2上有弹性定位片7。
参见图5，装配单发烟花时，将塑料底座1插入单发烟花的炮筒19中，通过胶水或钉子将炮筒19与塑料底座1固定，从炮筒19另一端填入发射药21并落入塑料底座1项部的碗中，与发热电阻丝3良好接触，然后按序填入带孔隔离纸片20、效果部件18与密封纸片。
使用时，先将固定基座2沿螺丝孔位9固定在不同角度的木板上，用CAT5导线插入到RJ45接插口10中，将固定基座上的弹性电极5导出连接到燃放设备。将装配有塑料底座1的单发烟花沿塑料底座1的上卡接结构17与固定基座2的下卡接结构8卡接固定，固定基座2上的弹性定位片7卡入到塑料底座1的定位卡槽11中，固定基座2上的弹性电极5与塑料底座1上的板状电极13可靠接触，将发热电阻丝3的电路沿金属导体12、板状电极13、弹性电极5、接插口10、导线到燃放设备。燃放时，设备将电流导通到发热电阻丝3上并瞬间发热，直接引燃发射药21，从而实现单发烟花燃放。

Claims (8)

1 、一种预装发热电阻丝的单发烟花底座及对应固定基座，包括塑料底座(1)、发热电阻丝(3)和二根金属导体(12)，其特征是：塑料底座(1)顶部设有发热电阻丝槽(4)，所述的发热电阻丝(3)固定位于所述的发热电阻丝槽(4)中且其两端分别与二根所述的金属导体(12)电连接，二根所述的金属导体(12)的另一端与二块板状电极(13)分别电连接并固定在所述的塑料底座(1)的底部，所述的塑料底座(1)的底部设有上卡接结构(17)，固定基座(2)设有下卡接结构(8)，所述的下卡接结构(8)与所述的塑料底座(1)的上卡接结构(17)对应卡接，所述的固定基座(2)顶部设有二个弹性电极(5)，二个所述的弹性电极(5)分别对正所述的塑料底座(1)的二块所述的板状电极(13)并电连接，所述的弹性电极(5)电连接到固定在所述的固定基座(2)上的接插口(10)。
2 、根据权利要求1所述的预装发热电阻丝的单发烟花底座及对应固定基座，其特征是：所述的塑料底座(1)的顶部为周边高、中间底的碗状，所述的发热电阻丝槽(4)设在所述的塑料底座(1)的碗状底部。
3 、根据权利要求1或2所述的预装发热电阻丝的单发烟花底座及对应固定基座，其特征是：在所述的发热电阻丝(3)上覆有亲焊金属层。
4 、根据权利要求1或2所述的预装发热电阻丝的单发烟花底座及对应固定基座，其特征是：所述的发热电阻丝(3)涂覆有一层抗氧化保护膜，所述的抗氧化保护膜将所述的发热电阻丝(3)固定在所述的电路板(15)上。
5 、根据权利要求1或2所述的预装发热电阻丝的单发烟花底座及对应固定基座，其特征是：所述的塑料底座(1)上设有定位卡槽(11)，所述的固定基座(2)上设有弹性定位片(7)，所述的弹性定位片(7)卡在所述的定位卡槽(11)内。
6 、根据权利要求1所述的预装发热电阻丝的单发烟花底座及对应固定基座，其特征是：不少于一个的所述的固定基座(2)组合成整体。
7 、根据权利要求1所述的预装发热电阻丝的单发烟花底座及对应固定基座，其特征是：所述的固定基座(2)上设有多个不同直径尺寸且互不干扰的下卡接结构(8)。
8 、根据权利要求1所述的预装发热电阻丝的单发烟花底座及对应固定基座，其特征是：所述的发热电阻丝(3)为电热转换能力良好的螺旋状电阻丝。
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