WO2014026421A1 - Fuel injector wiring device for flexible fuel engine - Google Patents

Fuel injector wiring device for flexible fuel engine Download PDF

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Publication number
WO2014026421A1
WO2014026421A1 PCT/CN2012/081606 CN2012081606W WO2014026421A1 WO 2014026421 A1 WO2014026421 A1 WO 2014026421A1 CN 2012081606 W CN2012081606 W CN 2012081606W WO 2014026421 A1 WO2014026421 A1 WO 2014026421A1
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WO
WIPO (PCT)
Prior art keywords
injector
wiring device
fuel injector
relay
fuse
Prior art date
Application number
PCT/CN2012/081606
Other languages
French (fr)
Chinese (zh)
Inventor
刘青林
高伟
李�杰
王先瑞
胡俊勇
王立辉
Original Assignee
安徽江淮汽车股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 安徽江淮汽车股份有限公司 filed Critical 安徽江淮汽车股份有限公司
Priority to BR212014025329U priority Critical patent/BR212014025329U2/en
Publication of WO2014026421A1 publication Critical patent/WO2014026421A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/005—Arrangement of electrical wires and connections, e.g. wire harness, sockets, plugs; Arrangement of electronic control circuits in or on fuel injection apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means
    • F02M53/04—Injectors with heating, cooling, or thermally-insulating means
    • F02M53/06—Injectors with heating, cooling, or thermally-insulating means with fuel-heating means, e.g. for vaporising

Definitions

  • the present invention relates to the field of automotive engines, and more particularly to an injector wiring device for a flexible fuel engine. Background technique
  • the function of the engine control harness is to connect the engine electronic control unit, enable the electronic control unit to accept the sensor signal and input the command from the electronic control system to the actuator to ensure reliable operation of the engine.
  • the heating efficiency of the four injectors needs to be consistent, otherwise it is not conducive to the cold start performance of the ethanol fuel engine.
  • the size of the wire resistance at each end of the injector is unbalanced, which easily leads to inconsistent power at the heating end of the injector and affects the heating efficiency.
  • multiple wires with injector inserts are bundled with other harnesses to form an engine bus bundle that can have dozens of terminals or plug-ins that can be confusing for installation and maintenance personnel.
  • the purpose of the utility model is to provide an injector connection device which can balance the resistance of the wires entering and exiting the injector and can be conveniently installed and maintained.
  • a fuel injector wiring device for a flexible fuel engine comprising:
  • the plurality of injector inserts are connected in parallel, and the total lengths of the wires of the parallel branches are equal, and the fuse, the preheating control module, the plurality of injector inserts connected in parallel, and the relay are sequentially connected in series.
  • the series conductor used has a wire diameter of 8.0 mm 2 .
  • the parallel conductors used are all connected in parallel with a wire diameter of 4.0 mm 2 .
  • the fuse is a 70A fuse.
  • the relay is a 70A relay.
  • the preheat control module and the relay are packaged in a box.
  • the fuse is also packaged in the box.
  • the injector insert uses an F-type connector.
  • the injector wiring device can be quickly found in the engine bus bundle, which facilitates the inspection of the injector circuit and is convenient for installation and maintenance.
  • FIG. 1 is a wiring diagram of an embodiment of the present invention, in which a plurality of injector inserts are schematically illustrated.
  • the four injector inserts 3 are connected in parallel, and the total length of the wires of each parallel branch is equal, that is, the route of the first injector plug-in is: 5-9-10-11-12; The path of the injector plug-in is: 5-6-10-11-12; the route of the third injector plug-in is: 5-6-7-11-12; the fourth injector plug-in The routing path is: 5-6-7-8-12. That is to say, the injector insert that is connected to the solder joint 5 (the closer the distance from the solder joint 5 is closer) in the distance is connected to the solder joint 12 (the farther from the solder joint 12).
  • each injector The plug-in 3 is connected in parallel by wires with a wire diameter of 4 mm 2 to meet the operating current requirements of the injector.
  • the four injector inserts 3 shown in this embodiment are compatible with a four-cylinder engine, and are compatible with other cylinder numbers, such as six-cylinder and eight-cylinder engines. Accordingly, a plurality of injector inserts 3 can be present.
  • solder joints 5, 12 are the common connection points of the wires, and the break points 6, 7, 8, 9, 10, 11 are not the connection points between the wires.
  • the purpose of each of the vertices is only to better explain the distance relationship between the injector insert 3 and the solder joints 5, 12, and does not mean that these vertices must exist in the actual circuit.
  • the fuse 1, the preheating control module 2 is connected in series to the solder joint 5, and after the solder joint 12, the relay 4 is connected in series.
  • the fuse 1 is connected to the positive pole of the power source (for example, a car battery), the relay 4 is connected to the negative pole or the grounding, and the injector insert 3 is connected to the injector.
  • the injector insert 3 adopts an F-type connector, and can be easily inserted and removed in a case where the space of the automobile engine is small. It is preferable to use 8 mm 2 wires in series with each component to meet the operating current requirements of the entire circuit.
  • Fuse 1 protects the entire circuit from overcurrent, preferably a 70A fuse.
  • Relay 4 is used to control the entire circuit, preferably a 70A relay.
  • the preheat control module 2 and the relay 4 are housed in a case 13 so that only a few wires are exposed, which makes it easy to find individual injector inserts and facilitate the installation and maintenance of various components.
  • the fuse 1 can also be packaged in the case 13 to make the wiring outside the case 13 more tidy.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Fuses (AREA)

Abstract

Disclosed is a fuel injector wiring device for a flexible fuel engine, the device comprising a fuse wire (1), a preheating control module (2), a plurality of fuel injector inserts (3), and a relay (4), wherein the plurality of fuel injector inserts (3) are connected in parallel; the total length of the wire of each parallel branch is equal; and the fuse wire (1), the preheating control module (2), the plurality of fuel injector inserts (3) connected in parallel and the relay (4) are connected in series successively. The fuel injector wiring device ensures the resistance balance of wires at both ends of a fuel injector, and the device is convenient to assemble and maintain.

Description

一种用于灵活燃料发动机的喷油器接线装置 技术领域  Injector wiring device for flexible fuel engine
本发明涉及汽车发动机领域， 特别涉及一种用于灵活燃料发动机的喷 油器接线装置。 背景技术  The present invention relates to the field of automotive engines, and more particularly to an injector wiring device for a flexible fuel engine. Background technique
发动机的控制线束的作用， 是连接发动机电控单元、 使电控单元接受 传感器信号并将电控系统发出的指令输入给执行器、保证发动机可靠运行。 在灵活燃料发动机采用电加热喷油器的发动机控制系统时， 四个喷油器的 加热效率需要保持一致， 否则不利于乙醇燃料发动机的冷启动性能。 现有 技术条件下， 在线束制作过程中， 每个喷油器两端导线电阻的大小不平衡， 极易导致喷油器加热端功率不一致， 影响加热效率。 并且， 带有喷油器插 件的多条导线是与其它线束捆绑在一起， 形成一个发动机总线束， 该总线 束可能拥有数十个接线端子或插件， 杂乱无章， 给安装、 维修人员带来麻 烦。 实用新型内容  The function of the engine control harness is to connect the engine electronic control unit, enable the electronic control unit to accept the sensor signal and input the command from the electronic control system to the actuator to ensure reliable operation of the engine. When the flexible fuel engine uses the engine control system of the electric heating injector, the heating efficiency of the four injectors needs to be consistent, otherwise it is not conducive to the cold start performance of the ethanol fuel engine. Under the existing technical conditions, during the wire harness manufacturing process, the size of the wire resistance at each end of the injector is unbalanced, which easily leads to inconsistent power at the heating end of the injector and affects the heating efficiency. Also, multiple wires with injector inserts are bundled with other harnesses to form an engine bus bundle that can have dozens of terminals or plug-ins that can be confusing for installation and maintenance personnel. Utility model content
本实用新型的目的是提供一种进出喷油器两端的导线电阻平衡， 并且 能够方便地安装、 维修的喷油器接线装置。  The purpose of the utility model is to provide an injector connection device which can balance the resistance of the wires entering and exiting the injector and can be conveniently installed and maintained.
为实现上述目的， 本实用新型的实施例提供了如下技术方案： 一种用于灵活燃料发动机的喷油器接线装置， 包括：  In order to achieve the above object, an embodiment of the present invention provides the following technical solution: A fuel injector wiring device for a flexible fuel engine, comprising:
保险丝；  Fuse
预热控制模块；  Preheat control module;
多个喷油器插件；  Multiple injector inserts;
继电器；  Relay
所述多个喷油器插件并联， 并且各并联支路的导线总长相等， 所述保 险丝、 所述预热控制模块、 并联后的所述多个喷油器插件和所述继电器依 次串联。 可选择地， 所采用的串联导线的线径为 8.0mm2。 The plurality of injector inserts are connected in parallel, and the total lengths of the wires of the parallel branches are equal, and the fuse, the preheating control module, the plurality of injector inserts connected in parallel, and the relay are sequentially connected in series. Alternatively, the series conductor used has a wire diameter of 8.0 mm 2 .
可选择地， 所采用的并联导线的线径均为 4.0 mm2的导线并联。 Alternatively, the parallel conductors used are all connected in parallel with a wire diameter of 4.0 mm 2 .
可选择地， 所述保险丝为 70A保险丝。  Alternatively, the fuse is a 70A fuse.
可选择地， 所述继电器为 70A继电器。  Alternatively, the relay is a 70A relay.
可选择地， 所述预热控制模块和所述继电器被封装在一个盒子中。 可选择地， 所述保险丝也被封装在所述盒子中。  Optionally, the preheat control module and the relay are packaged in a box. Alternatively, the fuse is also packaged in the box.
可选择地， 所述喷油器插件采用 F型连接器。  Optionally, the injector insert uses an F-type connector.
由于并联各支路导线总长相等， 既喷油器两端的导线总长相等， 实现 了电阻平衡， 特别能够满足灵活燃料发动机的预热要求。  Since the total lengths of the wires in the parallel branches are equal, the total length of the wires at both ends of the injector is equal, and the resistance balance is realized, which can particularly meet the warm-up requirements of the flexible fuel engine.
进一步地， 由于将保险丝、 预热控制模块、 继电器封装在一个盒子中， 能够在发动机总线束中很快寻找到喷油器接线装置， 利于喷油器线路的排 查， 并且安装、 维修方便。  Further, since the fuse, the preheating control module, and the relay are packaged in one box, the injector wiring device can be quickly found in the engine bus bundle, which facilitates the inspection of the injector circuit and is convenient for installation and maintenance.
进一步地， 由于采用 F形连接器， 使得线束插拔方便。 附图说明  Further, since the F-shaped connector is used, the wire harness is easily inserted and removed. DRAWINGS
下面将结合附图对本实用新型的实施例进行进一步详细说明， 其中： 图 1是本实用新型的实施例的接线图， 其中示意性示出了多个喷油器 插件。  The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings in which: FIG. 1 is a wiring diagram of an embodiment of the present invention, in which a plurality of injector inserts are schematically illustrated.
上图中序号： 1-保险丝 2-预热控制模块 3-喷油器插件 4-继电器 5、 12-焊点 6、 7、 8、 9、 10、 11-折点 13-盒子。 具体实施方式  In the above figure, the serial number: 1-Fuse 2-Preheat Control Module 3-Injector Insert 4- Relay 5, 12- Solder Joint 6, 7, 8, 9, 10, 11-Folding 13-Box. detailed description
参考图 1 , 四个喷油器插件 3 并联， 且各并联支路的导线总长相等， 即第一个喷油器插件的走线路径为： 5-9-10-11-12; 第二个喷油器插件的走 线路径为： 5-6-10-11-12; 第三个喷油器插件的走线路径为： 5-6-7-11-12; 第四个喷油器插件的走线路径为： 5-6-7-8-12。 也就是说， 在距离上越先与 焊点 5连接（与焊点 5的距离越近）的喷油器插件，越后与焊点 12连接（与 焊点 12的距离越远）。 通过这种连接方式， 确保了每一个喷油器插件 3在 焊点 5至 12之间的导线长度相等， 实现了导线电阻平衡。 优选各个喷油器 插件 3通过线径为 4mm2的导线并联， 满足喷油器工作电流要求。 本领域 普通技术人员能够很容易地想象， 本实施例中所示出的四个喷油器插件 3 是配合四缸发动机的， 为配合其它缸数的发动机， 例如六缸、 八缸发动机 等， 相应地能够存在多个喷油器插件 3。 本领域普通技术人员应当能够理 解， 在此图中， 只有焊点 5、 12为各导线的共同连接点， 折点 6、 7、 8、 9、 10、 11并非各导线之间的连接点， 并且， 各折点存在的目的只是为了更好 地解释个喷油器插件 3与焊点 5、 12之间的距离关系， 并不代表实际线路 中必须存在这些折点。 保险丝 1、 预热控制模块 2串联后连接至焊点 5 , 焊 点 12后串联着继电器 4。 保险丝 1接入电源（例如汽车蓄电池）正极， 继 电器 4接入负极或者搭铁， 喷油器插件 3连接至喷油器。 优选喷油器插件 3采用 F型连接器， 在汽车发动机空间狭小的情况下， 能够方便插拔。 优 选采用 8mm2的导线串联各部件， 可以满足整个电路的工作电流要求。 保 险丝 1能够保护整个电路， 防止过流， 优选 70A保险丝。 继电器 4用于控 制整个电路， 优选采用 70A继电器。 预热控制模块 2和继电器 4被封装在 一个盒子 13中， 使得仅有数根导线露在外面， 能够方便地查找各个喷油器 插件， 并方便对各部件的安装和维修。 当然， 保险丝 1也能够被封装在盒 子 13中， 使得盒子 13外面的接线更加整洁。 Referring to Figure 1, the four injector inserts 3 are connected in parallel, and the total length of the wires of each parallel branch is equal, that is, the route of the first injector plug-in is: 5-9-10-11-12; The path of the injector plug-in is: 5-6-10-11-12; the route of the third injector plug-in is: 5-6-7-11-12; the fourth injector plug-in The routing path is: 5-6-7-8-12. That is to say, the injector insert that is connected to the solder joint 5 (the closer the distance from the solder joint 5 is closer) in the distance is connected to the solder joint 12 (the farther from the solder joint 12). By this connection, it is ensured that the length of the wires of each of the injector inserts 3 between the solder joints 5 to 12 is equal, and the wire resistance balance is achieved. Preferred for each injector The plug-in 3 is connected in parallel by wires with a wire diameter of 4 mm 2 to meet the operating current requirements of the injector. One of ordinary skill in the art can easily imagine that the four injector inserts 3 shown in this embodiment are compatible with a four-cylinder engine, and are compatible with other cylinder numbers, such as six-cylinder and eight-cylinder engines. Accordingly, a plurality of injector inserts 3 can be present. It should be understood by those skilled in the art that in this figure, only the solder joints 5, 12 are the common connection points of the wires, and the break points 6, 7, 8, 9, 10, 11 are not the connection points between the wires. Moreover, the purpose of each of the vertices is only to better explain the distance relationship between the injector insert 3 and the solder joints 5, 12, and does not mean that these vertices must exist in the actual circuit. The fuse 1, the preheating control module 2 is connected in series to the solder joint 5, and after the solder joint 12, the relay 4 is connected in series. The fuse 1 is connected to the positive pole of the power source (for example, a car battery), the relay 4 is connected to the negative pole or the grounding, and the injector insert 3 is connected to the injector. Preferably, the injector insert 3 adopts an F-type connector, and can be easily inserted and removed in a case where the space of the automobile engine is small. It is preferable to use 8 mm 2 wires in series with each component to meet the operating current requirements of the entire circuit. Fuse 1 protects the entire circuit from overcurrent, preferably a 70A fuse. Relay 4 is used to control the entire circuit, preferably a 70A relay. The preheat control module 2 and the relay 4 are housed in a case 13 so that only a few wires are exposed, which makes it easy to find individual injector inserts and facilitate the installation and maintenance of various components. Of course, the fuse 1 can also be packaged in the case 13 to make the wiring outside the case 13 more tidy.
虽然本实用新型是结合以上实施例进行描述的， 但本实用新型并不限 定于上述实施例， 而只受权利要求的限定， 本领域普通技术人员能够容易 地对其进行修改和变化， 但并不离开本实用新型的实质构思和范围。  Although the present invention has been described in connection with the above embodiments, the present invention is not limited to the above embodiments, but only by the claims, those skilled in the art can easily modify and change them, but The true concept and scope of the present invention are not left.

Claims

权 利 要 求 Rights request
1. 一种用于灵活燃料发动机的喷油器接线装置， 包括： 1. An injector wiring device for a flexible fuel engine, comprising:
保险丝；  Fuse
预热控制模块；  Preheat control module;
多个喷油器插件；  Multiple injector inserts;
继电器；  Relay
所述多个喷油器插件并联， 并且各并联支路的导线总长相等， 所述保 险丝、 所述预热控制模块、 并联后的所述多个喷油器插件和所述继电器依 次串联。  The plurality of injector inserts are connected in parallel, and the total lengths of the wires of the parallel branches are equal, and the fuse, the preheat control module, the plurality of injector inserts connected in parallel, and the relay are connected in series.
2. 根据权利要求 1所述的喷油器接线装置， 其特征在于， 所采用的串 联导线的线径为 8.0mm2。 2. The fuel injector wiring device according to claim 1, wherein the series conductor used has a wire diameter of 8.0 mm 2 .
3. 根据权利要求 1所述的喷油器接线装置， 其特征在于， 所采用的并 联导线的线径为 4.0 mm2。 3. The injector wiring device according to claim 1, characterized in that the parallel wires used have a wire diameter of 4.0 mm 2 .
4. 根据权利要求 1所述的喷油器接线装置， 其特征在于， 所述保险丝 为 70A保险丝。  4. The fuel injector wiring device according to claim 1, wherein the fuse is a 70A fuse.
5. 根据权利要求 1所述的喷油器接线装置， 其特征在于， 所述继电器 为 70A继电器。  5. The fuel injector wiring device according to claim 1, wherein the relay is a 70A relay.
6. 根据权利要求 1所述的喷油器接线装置， 其特征在于， 所述预热控 制模块和所述继电器被封装在一个盒子中。  6. The fuel injector wiring device of claim 1, wherein the preheat control module and the relay are packaged in a box.
7. 根据权利要求 6所述的喷油器接线装置， 其特征在于， 所述保险丝 也被封装在所述盒子中。  7. The fuel injector wiring device according to claim 6, wherein the fuse is also packaged in the case.
8. 根据权利要求 1所述的喷油器接线装置， 其特征在于， 所述喷油器 插件采用 F型连接器。  8. The fuel injector wiring device according to claim 1, wherein the injector insert uses an F-type connector.
PCT/CN2012/081606 2012-08-15 2012-09-19 Fuel injector wiring device for flexible fuel engine WO2014026421A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BR212014025329U BR212014025329U2 (en) 2012-08-16 2012-09-19 fuel injector fuel injector cable interconnect device

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CN201220404817.1 2012-08-15
CN 201220404817 CN202732180U (en) 2012-08-16 2012-08-16 Fuel injector wiring device for flexible fuel engine

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Publication number Priority date Publication date Assignee Title
CN204267155U (en) * 2014-11-13 2015-04-15 安徽江淮汽车股份有限公司 A kind of flexible fuel engine controls wire harness

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