WO2009009974A1 - Trompette électronique avec une connexion électrique analogique et son procédé de fabrication - Google Patents
Trompette électronique avec une connexion électrique analogique et son procédé de fabrication Download PDFInfo
- Publication number
- WO2009009974A1 WO2009009974A1 PCT/CN2008/071157 CN2008071157W WO2009009974A1 WO 2009009974 A1 WO2009009974 A1 WO 2009009974A1 CN 2008071157 W CN2008071157 W CN 2008071157W WO 2009009974 A1 WO2009009974 A1 WO 2009009974A1
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- WO
- WIPO (PCT)
- Prior art keywords
- armature
- horn
- diaphragm
- electronic
- static
- Prior art date
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Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
- G10K9/13—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means
Definitions
- the present invention relates to an analog electrical connection electronic car horn and a method of fabricating the same.
- the contact When the contact is opened and disconnected, a high induced voltage is generated, and the contact is ablated by the air, and the ablated contact is easily oxidized, so that the contact resistance of the contact is increased, and the circuit is blocked, thereby causing the horn to fail. Therefore, the requirements of the horn for the contact are very high. Many manufacturers even use the platinum contact. The ⁇ is still ablated by the high current of the circuit after a period of time, so that the contact is oxidized, and the life of the horn is greatly reduced. Customer's request.
- a contactless electronic horn is produced.
- the existing non-contact electronic horn has smashed the mechanical contacts, and uses an electronic circuit to oscillate and control the sounding system to make the horn sound.
- the electronic horn has good sound quality and long life.
- the ⁇ is that the horn circuit has a complicated structure, many circuit components, high development cost and material cost, complicated manufacturing process, and high equipment cost and tooling cost. There is no price advantage in the market.
- the object of the present invention is to provide a novel circuit with simple circuit, few components, simple manufacturing process and long service life.
- the car uses an electronic horn.
- the invention of this new type of automotive electronic horn has changed the original structure of the horn, thereby improving the manufacturing method of the horn and simplifying the manufacturing process.
- the composition comprises: a housing, a static armature connected to the housing, a diaphragm, a moving armature connected to the diaphragm, the diaphragm being connected to the electronic switch circuit by an electrical take-off device, the moving armature, the static The armature is not in direct contact, and the electrical connection is made electrically and electrically connected.
- the high-input-impedance electronic switch FET is connected to a gate that can be connected to a turn-off turn-off ratio, which is used to adjust the proportional capacitance of the horn current.
- the electronic switch circuit includes a field effect transistor, a diode, a resistor and a magnet wire, and the electromagnetic wire is connected in parallel at both ends to reduce the large-capacity 4 ⁇ F ⁇ 10 ⁇ F required for the field effect tube withstand voltage.
- the housing is fixed by a pressure ring, the diaphragm is insulated from the housing, the movable armature is connected to the diaphragm, the static armature is riveted to the housing, and the static armature and the elastic structure are connected by fastening or welding.
- the FET gate of the horn is connected to the grounding resistor and the gate resistor, and
- An anti-reverse diode is connected in the power supply solenoid and the FET circuit, and an absorption capacitor or a varistor is connected in parallel on the electromagnetic coil.
- the invention structurally reduces the shrapnel 3 of the original mechanical horn, the insulating gasket 2, the steel sheet 1 and the two small contacts that need to be riveted, which greatly simplifies the process and reduces the raw materials of the product. cost. Increased stability, improved life, simplified structure, reduced manufacturing cost of the horn, price drop Hey, workshop management costs have dropped.
- the invention has a horn armature 8 and a static armature 7
- the state between the two is provided as switch information to the electronic switch circuit 16 capable of carrying current and high input impedance, and the parallel connection of the electromagnetic wire ⁇ 6 with 4 ⁇ F 10 10 ⁇ F can be applied to the field effect transistor 33
- the large-capacity absorbing capacitor 34 or the varistor required for the withstand voltage lowers the withstand voltage requirement of the electronic switch circuit 16.
- the state between the two is transmitted as a switching signal to the electronic switching circuit of high input impedance 16
- the current passing between them is small, thereby prolonging the life of the product and solving the problem of short life of the contact mechanical horn.
- the contact of the product of the present invention is replaced by the elastic structure on the static armature 7 and the movable armature 8.
- the induced voltage is not well reduced, and the capacitance 34 of the product produced by the present invention is much larger than 1 ⁇ F, at 4 F to 10 F, thus lowering the electronic switching circuit 16
- the requirements of the device save costs.
- the present invention has a high input impedance due to the electronic switch circuit 16, and therefore, when the armature 8 and the static armature 7 are corroded due to the environment, there is a large contact resistance, and the electronic switch circuit 16
- the input still has a very low input level, still enabling the electronic switch circuit 16
- the cut-off is closed, so the circuit is not easily affected by the rust of the armature.
- This product can withstand the effects of moisture and salt spray, and keep the work stable.
- the invention eliminates the riveting of the elastic horn 3 in the mechanical horn structure of the conventional common metal contact, the insulating spacer 2, the steel sheet 1, and the steel sheet 1 and the elastic piece 3
- the contact and disconnection control the horn sound greatly simplifying the horn structure and eliminating the need to adjust the screw to control the current.
- the electronic switch circuit 16 described in the novel automotive electronic horn includes a field effect transistor 33, a diode 35 and a resistor 36.
- the cost of the electronic horn is greatly reduced, and the performance is stable in principle, the adaptability to the external environment is enhanced, the reliability of the horn is improved, the qualified product rate is improved, the cost is lowered, and the efficiency is improved.
- Figure 1 is a structural view of a conventional conventional mechanical horn.
- Figure 2 is a structural view of an electronic horn according to Embodiment 1 of the present invention.
- Figure 3 is a structural view of an electronic horn according to a second embodiment of the present invention.
- Figure 4 is a structural view of an electronic horn of Embodiment 3 of the present invention.
- Figure 5 is a structural view of an electronic horn according to a fourth embodiment of the present invention.
- Figure 6 is a structural view of an electronic horn according to a fifth embodiment of the present invention.
- Figure 7 is a circuit diagram of an electronic horn of the present invention. Among them: 6. Electromagnetic wire ⁇ 9. Capacitor C2
- Figure 8 is a circuit diagram of another electronic horn of the present invention.
- Electromagnetic wire 9. 9.
- the diaphragm 10 is connected to the movable armature 8, and the outer ring of the diaphragm 10 has a sealed insulating ring 11, and the diaphragm 10 is connected to the electronic switch circuit 16 through an electrical take-off device.
- a counterbore is drilled in the center of the upper part, and a conductive rubber 19 is installed in the counterbore.
- the movable armature 8 and the static armature 18 are turned on and off by the conductive rubber 19.
- the conductive rubber 19 passes through the static armature 18 and the housing
- the diaphragm 10 is insulated from the housing 15.
- the electronic switch circuit 16 described in the novel automotive electronic horn includes a field effect transistor 33 and a diode
- the electronic switch circuit 16 includes an electromagnetic wire ⁇ 6, and the electromagnetic wire ⁇ 6
- a large-capacity 4 ⁇ F ⁇ 10 ⁇ F capacitor 34 or a varistor is connected in parallel at both ends, thereby lowering the withstand voltage requirement of the field effect transistor 33.
- the presence or absence of the current of the driving electromagnetic wire ⁇ 6 is turned on and off by the static armature 18 and the movable armature 8, thereby generating an electromagnetic force, and driving the diaphragm 10 to vibrate to cause sound.
- the electronic switch circuit 16 inputs the high level, the FET 33 is turned on, and the electromagnetic wire ⁇ 6 generates a current.
- the moving armature 8 is forced to suck the static armature 18.
- the input end of the electronic switch circuit 16 is grounded, and the armature 8 inputs the zero point pressure information of the zeta potential to the electronic switch circuit 16, thereby causing the field effect transistor 33
- the current in the coil is interrupted, the electromagnetic force is lost, and the moving armature 8 is returned by the elastic force of the diaphragm 10.
- the movable armature 8 leaves the conductive rubber 19 of the static armature 18, and the circuit is broken. Therefore, the electronic switch is input to the high level again, and the FET 33 is turned on, so that the electromagnetic wire ⁇ 6 generates an electromagnetic force, so that the moving armature 8 is forced to attract the static armature 18
- Embodiment 1 Similar to Embodiment 1, (see Fig. 3), except that the conductive rubber 19 in Embodiment 1 was changed to the tower spring 20.
- a counterbore is drilled in the center of the upper portion, and a tower spring 20 is installed in the counterbore.
- the static armature 19 and the tower spring 20 are connected by welding. Moving armature 8 and static armature 19 passing tower spring 20
- the tower spring 20 is connected to the housing 15 via a static armature 19.
- the vibration causes the horn to sound.
- Embodiment 1 Similar to Embodiment 1, (see FIG. 4), except that the conductive rubber 19 in Embodiment 1 is changed to a V-shaped elastic piece 22, and the static armature 21 in Embodiment 1 is used. A counterbore is drilled in the center to change a through slot.
- a through groove is milled along the center line, and the V-shaped elastic piece 22 is welded in the middle of the groove, and both ends of the V-shaped elastic piece 22 are exposed on the upper surface of the static armature 21.
- the V-shaped elastic piece 22 is connected to the housing 15 via a static armature 21.
- the vibration causes the horn to sound.
- a through groove is cut along the center line to weld the angular elastic piece 24 to the bottom of the groove, and the upper end of the angular elastic piece 24 is exposed on the upper surface of the static armature 23.
- the angled spring piece 24 is coupled to the housing 15 via a static armature 23.
- the vibration causes the horn to sound.
- moving armature 8 static armature 28, lead 31, insulating mat 29, goose shaped shrapnel 30, pressure ring 12, housing
- the diaphragm 10 is connected to the movable armature 8, and the diaphragm 10 is again coupled to the housing
- the static armature 28 is connected to the housing 15. Therefore, the diaphragm 10, the moving armature 8
- the static armature 28 and the housing 15 are both conductive.
- a rectangular counterbore is drilled in the center of the upper part, and the hole is provided with an insulating mat 29 and an anise-shaped shrapnel 30
- the static armature 28 and the goose-shaped shrapnel 30 are non-conducting.
- the goose-shaped shrapnel 30 and the lead 31 The goose-shaped elastic piece 30 is electrically connected to the lead wire 31 by being joined by welding.
- the lead 31 is connected to the electronic switch circuit 16.
- the lead 31 and the electronic switch circuit 16 can be placed within the housing 15 or outside of the housing 15.
- the electronic switch circuit 16 described in the novel automotive electronic horn includes a field effect transistor 33 and a diode
- the electronic circuit includes an electromagnetic wire ⁇ 6, and the electromagnetic wire ⁇ 6 is connected in parallel with a large capacity
- a capacitor of 4 ⁇ F to 10 ⁇ F 34 or a varistor reduces the withstand voltage requirement of the FET 33.
- the electronic switch circuit 16 inputs the high level, causes the field effect transistor 33 to be turned on, and the electromagnetic wire ⁇ 6 generates a current, thereby generating an electromagnetic force.
- the moving armature 8 is forced to suck the static armature 28 .
- the moving armature 8 When the moving armature 8 is in contact with the goose-shaped shrapnel 30 of the static armature 28, the input end of the electronic switch circuit 16 is grounded, and the moving armature 8 inputs the zero point pressure information of the zeta potential to the electronic switch circuit 16, thereby making the field effect transistor At the end of 33, the current in the coil is interrupted, and the electromagnetic force is lost, so that the moving armature 8 depends on the elastic force of the diaphragm 10 itself. As a result, the moving armature 8 leaves the goose-shaped shrapnel 30 of the static armature 28, and the circuit is broken. Therefore, the electronic switch circuit 16 is further input to the high level, and the FET 33 is turned on, so that the electromagnetic wire ⁇ 6 generates an electromagnetic force, so that the movable armature 8 is strongly attracted to the static armature 28
- the reciprocating contact again leaves, thereby driving the diaphragm 10 to vibrate to cause the horn to sound.
- the opening and closing of the moving armature 8 and the static armature 28 are through the anvil-shaped shrapnel 30 on the static armature 28
- This new type of automotive electronic horn (see Figure 7), its electronic switching circuit 16 includes a solenoid ⁇
- FET 33 capacitor 34, diode 35, resistor 36, resistor 37, resistor 9.
- the FET 33 is turned off, the current in the coil is interrupted, and the electromagnetic force is lost, causing the switch S to be turned off.
- the switch S is in the off state, the high level is outputted in the electronic switch circuit 16 to turn on the FET 33.
- the switch S is turned off and then closed, thereby driving the diaphragm 10
- the vibration causes the horn to sound.
- the electromagnetic wire ⁇ 6 is connected in parallel with 4 ⁇ F ⁇ 10 ⁇ F energy-reducing FETs.
- the series connection not only plays the role of anti-reverse connection, but also increases the effect of the unidirectional freewheeling of the capacitor 34, and reduces the eddy current of the iron core in the electromagnetic coil ⁇ 6.
- the movable armature 8 and the static armature 7 of the present invention are respectively connected to the gate electrode and the grounding wire (housing 15) of the field effect transistor 33, and the energization switch S is not closed, and the field effect transistor 33 is turned on, and the electromagnetic wire ⁇ 6
- Electromagnetic force is generated, and the diaphragm 10 is actuated. This tilting armature 8 and static armature 7
- the elastic structure contacts, so that the switch S is closed, so that the FET 33 is powered off, the electromagnetic wire ⁇ 6 no longer has a magnetic force, and the horn diaphragm 10 bounces back to the original position, so that the horn sounds.
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Description
说明书 模拟电连接电子喇叭及其制作方法 技术领域
[1] 本发明创造涉及一种模拟电连接电子汽车喇叭及其制作方法。
背景技术
[2] 现有车用喇叭中有触点的机械喇叭是通过触点的通断驱动电磁线圏 6
电流的有无, 从而产生电磁力驱动膜片 10
振动而发声。 由于经过触点有一个较大的电流, 在电磁线圏 6
接触又断开的吋候产生很高的感应电压, 击穿空气而烧蚀触点, 烧蚀的触点很 容易氧化, 从而使触点接触电阻增大, 使电路不通, 从而使喇叭失效。 因而这 种喇叭对触点的要求很高, 很多厂家甚至使用白金触点, 伹是仍然一段吋间后 被电路的大电流烧蚀, 使触点氧化, 使喇叭的寿命大大降氐, 不能达到顾客的 要求。
[3] 由于机械喇叭的不可靠, 寿命短, 产生了无触点电子喇叭。 现有的无触点电子 喇叭, 甩掉了机械触点, 用一个电子电路振荡控制发声系统使喇叭发声, 电子 喇叭音质好, 寿命长。 伹是该喇叭电路结构复杂, 电路元器件多, 其开发成本 和材料成本高, 制造工艺也比较复杂, 设备成本和工装成本也比较高。 在市场 上没有价格优势。
[4] 由于机械喇叭的不可靠以及无触点的电子喇叭的高价格。 融入前二者的优点又 产生了有触点的电子喇叭的概念。 这种喇叭利用其动衔铁与静衔铁的直接碰撞 产生开关信号输送给高阻抗的电子开关, 驱动喇叭发声。 伹由于其利用了静衔 铁和动衔铁之间的相互碰撞, 因而产生杂音, 使这种喇叭具有音质差的致命缺 陷, 不能达到顾客的要求。 制作对音质要求不高的盆形喇叭还可以, 制作音质 好的蜗牛喇叭就不行了。
对发明的公开
技术问题
[5] 本发明的目的是提供一种电路简单、 元器件少、 制造工艺简单、 寿命长的新型
的车用电子喇叭。 这种新型车用电子喇叭的发明改变了喇叭的原有结构, 从而 改进了喇叭的制造方法, 使其制造工艺过程简化。
技术解决方案
[6] 新型的车用电子喇叭动衔铁、 静衔铁是通过弹性结构来实现接通与断开, 把导 通断开的电压信号传递给高输入阻抗的电子开关电路, 进而实现喇叭线圏的导 通与断开, 控制喇叭发声。
[7] 模拟电连接电子喇叭
, 其组成包括: 壳体, 与壳体连接的静衔铁, 膜片, 与膜片连接的动衔铁, 所 述的膜片通过电气引出装置与电子开关电路相接, 所述的动衔铁、 静衔铁不直 接接触, 通过弹性结构来实现电气的接通与断开。
[8] 所述的模拟电连接电子喇叭
, 在高输入阻抗的电子开关场效应管的栅极连接一个可控制接通断开吋间比例 即用来调整喇叭电流的通断吋间的比例电容。
[9] 所述的模拟电连接电子喇叭
, 所述的电子开关电路包括场效应管、 二极管、 电阻和电磁线圏, 所述的电磁 线圏两端并联降氐对场效应管耐压要求的大容量的 4μ F〜 10μ F
的电容或者压敏电阻。
[10] 一种所述的模拟电连接电子喇叭的制作方法, 将膜片及密封绝缘环
与壳体通过压环固定在一起, 膜片与壳体之间绝缘, 动衔铁接在膜片上, 静衔 铁铆接在壳体上, 静衔铁与弹性结构是通过紧固或焊接的方式连接, 喇叭的场效应管栅极连接接地电阻和栅极电阻, 并且
通过电气引出装置与膜片连接。
在电源电磁线圏和场效应管回路中串 有防反 接二极管, 在所述的电磁线圏上并联吸收电容或者压敏电阻。
有益效果
[11] 1 . 本发明在结构上减少了原来机械喇叭的弹片 3, 绝缘垫片 2, 钢片 1 和需要铆接的两个小触点, 使工艺过程大幅度简化, 也减少了产品原材料的费 用。 稳定性增强, 提高了寿命, 结构简化, 使其喇叭的制造成本降氐, 价格降
氐, 车间管理费用降氐。
[12] 2 . 本发明把喇叭动衔铁 8与静衔铁 7
之间的状态作为开关信息提供给能承载电流而且输入阻抗高的电子开关电路 16 , 同吋电磁线圏 6两端并联有 4 μ F〜 10 μ F的能降氐对场效应管 33
的耐压要求的大容量吸收电容 34或者压敏电阻, 从而降氐对电子开关电路 16 的耐压要求。
[13] 3 . 本发明产品将动衔铁 8和静衔铁 7
之间的状态作为开关信号输送给高输入阻抗的电子开关电路 16
, 由电路完成电磁线圏 6的驱动, 因而动衔铁 8与静衔铁 7
之间通过的电流很小, 从而延长了产品寿命, 解决了有触点机械喇叭寿命短的 问题, 本发明产品的触点是用静衔铁 7上的弹性结构和动衔铁 8来代替的。
[14] 4 . 现有的机械有触点喇叭和无触点电子喇叭与电磁线圏 6并联的吸收电容 34
(灭弧电容) 容量在 l F
以下, 不能很好的降低感应电压, 而本发明生产的产品的电容 34远远大于 1 μ F, 在 4 F〜10 F, 这样就降氐了对电子开关电路 16
器件的要求, 节约了成本。
[15] 5 . 本发明由于电子开关电路 16输入阻抗很高, 因此, 当动衔铁 8与静衔铁 7 由于环境造成锈蚀, 有大的接触电阻吋, 电子开关电路 16
输入端仍然有很氐的输入电平, 依然能够使电子开关电路 16
关闭截止, 因此对于衔铁的生锈, 本电路不容易受影响, 本产品可以抵御潮湿 、 盐雾环境的影响, 能够保持工作稳定。
[16] 6 . 本发明去掉了现有的普通金属触点的机械喇叭结构中的铆接在一起弹片 3 、 绝缘垫片 2、 钢片 1, 以及钢片 1和弹片 3
上分别铆接的两个很小的上钨触点 4与下钨触点 5。 所述的新型车用电子 喇叭用静衔铁 7上的弹性结构与动衔铁 8
的接触与断开来控制喇叭发声, 大大简化了喇叭结构, 并且无需调整螺钉来控 制电流。 所述的新型车用电子喇叭中所述的电子开关电路 16包括场效应管 33 、 二极管 35和电阻 36,
大大降氐了电子喇叭的成本, 而且原理上保证性能稳定, 对外界环境的适应能 力增强, 提高了喇叭的可靠性, 提高了合格品率, 降氐了成本, 提高了效率。 附图说明
[17] 附图 1是现有的普通机械喇叭结构图。
[18] 附图 2是本发明实施例 1电子喇叭结构图。
[19] 附图 3是本发明实施例 2电子喇叭结构图。
[20] 附图 4是本发明实施例 3电子喇叭结构图。
[21] 附图 5是本发明实施例 4电子喇叭结构图。
[22] 附图 6是本发明实施例 5电子喇叭结构图。
[23] 附图 7是本发明的电子喇叭电路图。 其中: 6.电磁线圏 9.电容 C2、
33.场效应管、 34.电容 Cl、 35.二极管、 36.电阻 R2、 37.电阻 Rl。
[24] 附图 8是本发明另一种电子喇叭电路图。 图中: 6.电磁线圏、 9.电容 C2、 33.场 效应管、 34.电容 Cl、 35.二极管、 36.电阻 R2、 37.电阻 Rl。
本发明的最佳实施方式
[25] 实施例 1:
[26] 在这种新型的车用电子喇叭中, (见附图 2 ) , 其组成包括: 膜片 10
, 动衔铁 8, 静衔铁 18, 导电橡胶 19, 压环 12, 壳体 15及电子开关电路 16
。 所述的膜片 10与动衔铁 8连接, 膜片 10的外环有密封绝缘环 11, 膜片 10 通过电气引出装置与电子开关电路 16相接。 所述的静衔铁 18
上面中心处钻一沉孔, 沉孔内安装有导电橡胶 19。 动衔铁 8与静衔铁 18 通过导电橡胶 19来实现接通与断开。 所述的导电橡胶 19通过静衔铁 18与壳体
15连接。 膜片 10及密封绝缘环 11通过压环 12与壳体 15
铆接在一起, 伹是膜片 10与壳体 15是绝缘的。
[27] 所述的新型车用电子喇叭中所述的电子开关电路 16包括场效应管 33、 二极管
35和电阻 36。
[28] 所述的电子开关电路 16中包括电磁线圏 6, 所述的电磁线圏 6
两端并联个大容量的 4μ F〜 10μ F的电容 34或者压敏电阻, 从而降氐对 场效应管 33耐压要求。
[29] 在这种新型的车用电子喇叭中是通过静衔铁 18与动衔铁 8接通与断开驱动电磁 线圏 6电流的有无, 从而产生电磁力, 驱动膜片 10振动导致发声。 电路接通后, 由于动衔铁 8、 静衔铁 18上的导电橡胶 19在静态位置没有接触, 因此, 电子开关 电路 16输入高位电平, 使场效应管 33导通, 电磁线圏 6产生电流, 从而产生电磁 力。 使动衔铁 8受力吸向静衔铁 18。 当动衔铁 8与静衔铁 18的导电橡胶 19相接触 后, 相当于电子开关电路 16输入端接地, 动衔铁 8就把氐电位的零点压信息输入 给电子开关电路 16, 从而使场效应管 33截止, 线圏中的电流中断, 失去了电磁 力, 使动衔铁 8依靠膜片 10的弹力返回。 从而导致动衔铁 8离开静衔铁 18的导电 橡胶 19, 电路断开。 从而使电子开关又输入高位电平, 又使场效应管 33 导通, 使电磁线圏 6产生电磁力, 使动衔铁 8受力吸向静衔铁 18
......周而复始, 动衔铁 8与静衔铁 18的导电橡胶 19
往复地接触又离开, 从而驱动膜片 10振动, 导致喇叭发声。 在所述的动衔铁 8 与静衔铁 18的相接通与断开是通过静衔铁 18上导电橡胶 19
来实现的, 这样就避免了动衔铁 8与静衔铁 18在直接接触吋产生的杂音。 本发明的实施方式
[30] 实施例 2:
[31] 与实施例 1相似, (见附图 3 ) , 所不同的是将实施例 1中的导电橡胶 19 改为塔型弹簧 20。
[32] 在这种新型的车用电子喇叭结构中, 所述的静衔铁 19
上面中心处钻一沉孔, 沉孔内安装有塔型弹簧 20。 静衔铁 19与塔型弹簧 20 通过焊接方式相连接。 动衔铁 8与静衔铁 19通过塔型弹簧 20
来实现接通与断开。 所述的塔型弹簧 20通过静衔铁 19与壳体 15连接。
[33] 在所述的电子开关电路 16中, 电路的接通与断开过程中, 是由动衔铁 8 与静衔铁 19上的塔型弹簧 20往复地接触又离开, 从而驱动膜片 10
振动导致喇叭发声。
[34] 实施例 3:
[35] 与实施例 1相似, (见附图 4 ) , 所不同的是将实施例 1中的导电橡胶 19 改为 V形弹片 22, 将实施例 1中的静衔铁 21
上面中心处钻一沉孔改为銑一个通槽。
[36] 在这种新型的车用电子喇叭结构中, 所述的静衔铁 21
上面沿中心线銑一个通槽, 将 V形弹片 22焊在槽中间处, 并且 V形弹片 22 的两端露出静衔铁 21的上表面。 静衔铁 21与 V形弹片 22
通过焊接方式相连接。 动衔铁 8与静衔铁 21通过 V形弹片 22
来实现接通与断开。 所述的 V形弹片 22通过静衔铁 21与壳体 15连接。
[37] 在所述的电子开关电路 16中, 电路的接通与断开过程中, 是由动衔铁 8 与静衔铁 21上的 V形弹片 22往复地接触又离开, 从而驱动膜片 10
振动导致喇叭发声。
[38] 实施例 4:
[39] 与实施例 3相似, (见附图 5 ) , 所不同的是将实施例 3中的 V形弹片 22 改为角型弹片 24。
[40] 在这种新型的车用电子喇叭结构中, 所述的静衔铁 23
上面沿中心线銑一个通槽, 将角型弹片 24焊在槽底, 并且角型弹片 24 的上端露出静衔铁 23的上表面。 静衔铁 23与角型弹片 24
通过焊接方式相连接。 动衔铁 8与静衔铁 23通过角型弹片 24
来实现接通与断开。 所述的角型弹片 24通过静衔铁 23与壳体 15连接。
[41] 在所述的电子开关电路 16中, 电路的接通与断开过程中, 是由动衔铁 8 与静衔铁 23上的角型弹片 24往复地接触又离开, 从而驱动膜片 10
振动导致喇叭发声。
[42] 实施例 5:
[43] 在这种新型的车用电子喇叭中, (见附图 6 ) , 其组成包括: 膜片 10
, 动衔铁 8, 静衔铁 28, 引线 31, 绝缘垫 29, 雁形弹片 30, 压环 12, 壳体
15及电子开关电路 16。 所述的膜片 10与动衔铁 8连接, 且膜片 10又与壳体
15铆接在一起。 所述的静衔铁 28与壳体 15连接。 故膜片 10、 动衔铁 8
、 静衔铁 28与壳体 15均是导通的。 所述的静衔铁 28
上面中心处钻一长方形沉孔, 孔内装有绝缘垫 29及雁形弹片 30
中间处, 静衔铁 28与雁形弹片 30是不导通。 所述的雁形弹片 30与引线 31
通过焊接相连, 使雁形弹片 30与引线 31导通。 所述的引线 31与电子开关电路 16连接。 所述的引线 31和电子开关电路 16可放在壳体 15内或者壳体 15 外面。
[44] 所述的新型车用电子喇叭中所述的电子开关电路 16包括场效应管 33、 二极管
35和电阻 36。
[45] 所述的电子电路中包括电磁线圏 6, 所述的电磁线圏 6两端并联个大容量的
4μ F〜 10μ F的电容 34或者压敏电阻, 从而降低对场效应管 33耐压要求。
[46] 在这种新型的车用电子喇叭中是通过动衔铁 8与静衔铁 28上的雁形弹片 30 的接通与断开驱动电磁线圏 6电流的有无, 从而产生电磁力, 驱动膜片 10 振动导致发声。 电路接通后, 由于动衔铁 8、 静衔铁 28的雁形弹片 30
在静态位置没有接触, 因此, 电子开关电路 16输入高位电平, 使场效应管 33 导通, 电磁线圏 6产生电流, 从而产生电磁力。 使动衔铁 8受力吸向静衔铁 28 。 当动衔铁 8与静衔铁 28的雁形弹片 30相接触后, 相当于电子开关电路 16 输入端接地, 动衔铁 8就把氐电位的零点压信息输入给电子开关电路 16 , 从而使场效应管 33截止, 线圏中的电流中断, 失去了电磁力, 使动衔铁 8 依靠膜片 10本身的弹力返回。 从而导致动衔铁 8离开静衔铁 28的雁形弹片 30 , 电路断开。 从而使电子开关电路 16又输入高位电平, 又使场效应管 33 导通, 使电磁线圏 6产生电磁力, 使动衔铁 8受力吸向静衔铁 28
......周而复始, 动衔铁 8与静衔铁 28的雁形弹片 30
往复地接触又离开, 从而驱动膜片 10振动导致喇叭发声。 在所述的动衔铁 8 与静衔铁 28的相接通与断开是通过静衔铁 28上雁形弹片 30
来实现的, 这样就避免了动衔铁 8与静衔铁 28在直接接触吋产生的杂音。
[47] 实施例 6:
[48] 这种新型的车用电子喇叭, (见附图 7 ) , 其电子开关电路 16包括电磁线圏
6、 场效应管 33、 电容 34、 二极管 35、 电阻 36、 电阻 37、 电阻 9。
[49] 其原理如下: 当电路接通后, 开关 S处于断开状态, 正电源通过电阻 R2 向电子开关电路 16中的场效应管的栅极电容 C2充电为高电平, 使场效应管 33 导通, 在电源、 串 联的防反接二极管 35
、 电阻 36、 电磁线圏 6及电磁线圏 6上并联的吸收电容 34和场效应管 33 的回路中产生电流, 从而电磁线圏 6有电流通过, 从而产生电磁力, 导致开关 S 闭合。 当开关 S闭合后, 相当于电子开关电路 16输入端接地, 电容 C2
放电为氐点平。 这样就把氐电位的零点压信息输入给电子开关电路 16
, 从而使场效应管 33截止, 线圏中的电流中断, 失去了电磁力, 导致开关 S 断开。 当开关 S处于断开状态, 电子开关电路 16中输出高位电平, 使场效应管 33导通 ......周而复始, 开关 S处于断开后又闭合, 从而驱动膜片 10
振动导致喇叭发声。
所述的二极管 35
串 联到电路中, 起到防反接的作用。
所述的电磁线圏 6两端并联有 4 μ F〜 10 μ F的能降氐对场效应管 33
的耐压要求的大容量吸收电容 34, 降氐对场效应管 33的耐压要求,
能很好的降氐感应电压, 起到消反峰的作用, 从而保护了场效应管 33。
实施例 7:
与实施例 7相似, (见附图 8 ) , 只是将防反接二极管 35与电磁线圏 6 串 联, 再同吋与电容 34并联后, 与场效应管
33
串 接, 既起到防反接的作用, 又增加了对电 容 34单向续流的作用, 降^^了电磁线圏 6中铁芯的涡流。
工作过程:
本发明的动衔铁 8和静衔铁 7分别接场效应管 33的栅极和地线 (壳体 15 ) , 通电吋开关 S不闭合, 场效应管 33导通, 电磁线圏 6
产生电磁力, 吸动膜片 10动作, 此吋动衔铁 8与静衔铁 7
的弹性结构接触, 使开关 S闭合, 从而使场效应管 33断电, 电磁线圏 6 不再有磁力, 喇叭膜片 10弹回原位, 这样周而复始, 使喇叭发声。
Claims
1.一种模拟电连接电子喇叭
, 其组成包括: 壳体, 与壳体连接的静衔铁, 膜片, 与膜片连接的动衔铁 , 所述的膜片通过电气引出装置与电子开关电路相接.
其特征是: 所述的动衔铁、 静衔铁不直接接触, 通过弹性结构来实现电气 的接通与断开。
2 . 根据权利要求 1所述的模拟电连接电子喇叭
, 其特征是: 所述的电子开关电路中, 在高输入阻抗的电子开关场效应管 的栅极连接一个可控制接通断开吋间比例即用来调整喇叭电流的通断吋间 的比例电容。
3.根据权利要求 1或 2所述的模拟电连接电子喇叭
, 其特征是: 所述的电子开关电路包括场效应管、 二极管、 电阻和电磁线 圏, 所述的电磁线圏两端并联降氐对场效应管耐压要求的大容量的 4μ F〜 10 F的电容或者压敏电阻。
4
. 一种所述的模拟电连接电子喇叭的制作方法, 其特征是: 将膜片及密封 绝缘环
与壳体通过压环固定在一起, 膜片与壳体之间绝缘, 动衔铁接在膜片上, 静衔铁铆接在壳体上, 静衔铁与弹性结构是通过紧固或焊接的方式连接, 喇叭的场效应管栅极连接接地电阻和栅极电阻, 并且
通过电气引出装置与膜片连接。
在电源电磁线圏和场效应管回路中串 有 防反接二极管, 在所述的电磁线圏上并联吸收电容或者压敏电阻。
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