WO2011035730A1 - 一种电容补偿投切开关 - Google Patents

一种电容补偿投切开关 Download PDF

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Publication number
WO2011035730A1
WO2011035730A1 PCT/CN2010/077331 CN2010077331W WO2011035730A1 WO 2011035730 A1 WO2011035730 A1 WO 2011035730A1 CN 2010077331 W CN2010077331 W CN 2010077331W WO 2011035730 A1 WO2011035730 A1 WO 2011035730A1
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WO
WIPO (PCT)
Prior art keywords
heat dissipation
terminal block
connecting piece
outer casing
thyristor
Prior art date
Application number
PCT/CN2010/077331
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English (en)
French (fr)
Inventor
戴志勇
陆伯帅
Original Assignee
常州市默顿电气有限公司
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Filing date
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Application filed by 常州市默顿电气有限公司 filed Critical 常州市默顿电气有限公司
Publication of WO2011035730A1 publication Critical patent/WO2011035730A1/zh

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Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2089Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • H05K7/209Heat transfer by conduction from internal heat source to heat radiating structure

Definitions

  • the present invention relates to the field of switches, and more particularly to a capacitive compensation switching switch.
  • the existing thyristor switches are exposed, and the silicon-controllable components and the heat sink are exposed. Under such working conditions, these devices are easily subject to external interference and cause thyristor false triggering, and The protective performance is poor, the operator is easy to touch during the installation and debugging process, resulting in personal safety accidents such as electric shock. Therefore, people have considered increasing the housing, but the installation of the housing and the heat dissipation base has problems such as unstable installation and intimacy;
  • the thyristor switch has a small or no terminal block for the terminal block, which makes the wiring inconvenient during the installation and use of the operator. The smaller terminal block and the line connection are easy to touch the line. , causing a short circuit, which will affect the reliability and service life of the entire device.
  • the connection of the thyristor needs to be connected to a remote distance from the thyristor switch.
  • the wire needs to be "long", resulting in waste, and the intermediate distance is long, which is easily disturbed by the outside world, thus reducing the opening.
  • the circuit board of the existing thyristor switch has a complicated structure and high cost, and the control circuit board is placed at a remote place or embedded between the thyristor components, which is inconvenient for installation and maintenance, and its electrical The clearance and creepage distance are difficult to guarantee, the control circuit board work will be affected, the signal interference is large, and it is easy to cause false triggering of the thyristor.
  • the object of the present invention is to provide a capacitor compensation switching switch with a stable structure, a simple installation, easy maintenance, low electromagnetic interference and high reliability.
  • a capacitor M taste switching switch comprising a heat dissipation base, a thyristor module, a terminal block, a casing and a control circuit board, wherein the thyristor module is mounted on the heat dissipation base and located in the outer casing
  • the control circuit on the control circuit board has a signal input end and a signal output end, and the signal output end of the control circuit is electrically connected to the control end of the controllable module
  • the improvement point is: the heat dissipation base has heat dissipation a first side plate, a second side plate, and a middle lower portion of the heat sink, and the heat sink is disposed in parallel with the first side plate and the second side plate; the first side plate of the heat dissipation substrate and The second side plate has a first mounting slot and a second mounting slot, the first mounting slot has a first mounting screw hole, and the second mounting slot has a second mounting screw hole, the two sides of the housing The lower
  • the projecting portion is located at both ends of the heat dissipating end, and the extending direction of the projecting portion is parallel to the direction in which the fins are arranged.
  • the projecting portion is located on both sides of the heat sinking side, and the extending direction of the projecting portion is perpendicular to the direction in which the heat sink is disposed.
  • the two side plates and the first end plate of the outer casing each have a heat dissipation hole
  • the second end plate of the outer casing has a terminal hole for controlling a signal input end of the circuit and is provided with a connection terminal
  • the top surface of the outer casing has an indicator light a hole
  • a lower end of the first end plate and the second end plate of the outer casing have a notch
  • the upper edge of the notch is mounted with a molding strip
  • the lower edges of the first end plate and the second end plate are higher than the outer casing
  • the lower edges of the two side plates, and the first and second terminal blocks are respectively inserted into the notches of the first end plate and the second end plate.
  • the heat dissipating substrate has at least eight mounting screw holes, and the thyristor module and the first terminal block and the second terminal block are respectively fixed on the heat dissipating substrate of the heat dissipating base by screws and mounting screw holes.
  • the first terminal block has a first connecting piece, a second connecting piece and a third connecting piece, and each connecting piece is provided with two fastening screws
  • the first wire terminal row has a fourth connecting piece and a fifth a connecting piece and a sixth connecting piece, each of which is provided with two fastening screws, the first connecting piece, the second connecting piece, the third connecting piece, the fourth connecting piece, the fifth connecting piece and the sixth
  • a fastening screw on the connecting piece that is away from the thyristor module end, that is, the outer end, is placed outside the outer casing.
  • the thyristor module has two thyristors of a first thyristor and a second thyristor, and one end of the first thyristor is electrically connected to a fastening screw at an inner end of the first connecting piece adjacent thereto, the first The other end of the silicon control electrode is electrically connected to the fastening screw at the inner end of the sixth connecting piece adjacent thereto; the end of the second thyristor of the controllable stone sealing block and the fastening screw of the inner end of the third connecting piece adjacent thereto Electrically connected, the other end of the second thyristor is electrically connected with the fastening screw of the inner end of the fourth connecting piece adjacent thereto; between the fastening screw of the inner end of the second connecting piece and the fastening screw of the inner end of the fifth connecting piece Connected with electrical conductors.
  • the mounting through hole of the protruding portion is a waist circular through hole.
  • the thermal conductive silicone layer is disposed between the thyristor module and the heat dissipation substrate.
  • the column When the control circuit board is fixed to the inner wall of the top plate of the outer casing through the column, the column is riveted to the top plate of the outer casing, the column has a screw hole, and the control circuit board is fixed to the column by screws.
  • the heat dissipating fin has a heat dissipating surface opposite to the first side panel, the second side panel and the middle lower portion, and the heat dissipating fins are parallel to the first side panel and the second side panel Arranging a first mounting slot and a second mounting slot respectively on the first side panel and the second side panel of the heat dissipation substrate, the first mounting slot has a first mounting screw hole, and the second mounting slot has a first mounting slot Two mounting screw holes, the lower portions of the two side plates of the outer casing are respectively inserted into the first mounting groove and the second mounting groove, and then fixed to the first side plate and the first side of the heat dissipation by screws and the first and second mounting screw holes
  • the two side plates so the structural cylinder is stable, easy to maintain, electromagnetic interference is small, high reliability, and the installation groove can support and position the outer casing, and the structural cylinder is simple and beautiful, economical and practical;
  • the end or both sides have a protruding portion, and the protrud
  • Figure 1 is a front view of the present invention
  • Figure 2 is a plan view of the present invention
  • Figure 3 is a left side view of the present invention.
  • Figure 4 is a right side view of the present invention.
  • Figure 5 is an enlarged view of a portion B of Figure 4.
  • Figure 6 is an anatomical view of the main direction of the present invention.
  • Figure 7 is an anatomical view of the right view of the present invention.
  • Figure 8 is a plan view of the outer casing 5 after removal
  • Figure 9 is a cross-sectional view taken along line A-A of Figure 2;
  • Figure 10 is a cross-sectional view taken along line C-C of Figure 6;
  • FIG 11 is a schematic structural view of the heat dissipation base 1 of the present invention.
  • Figure 13 is a schematic view showing the structure of the outer casing 5 of the present invention.
  • Figure 14 is a schematic structural view of a controllable module 3 of the present invention.
  • Figure 15 is a schematic structural view of a terminal of the present invention.
  • Figure 16 is a schematic diagram of a conversion structure of the heat dissipation base 1 of the present invention.
  • Figure 17 is a schematic structural view of a terminal strip connecting piece of the present invention.
  • Fig. 18 is a second schematic diagram showing the structure of the heat dissipation base 1 of the present invention.
  • a capacitor M taste switching switch includes a heat dissipation base 1, a thyristor module 3, a terminal block 4, a casing 5, and a control circuit board 6,
  • the silicon control module 3 is mounted on the heat dissipation base 1 and located in the outer casing 5.
  • the control circuit of the control circuit board 6 has a signal input end and a signal output end, and the signal output end of the control circuit and the control end of the thyristor module 3 are electrically
  • the heat dissipation base 1 has a heat dissipation substrate 1-3 and a first side plate 1-1, a second side plate 1-2, and a middle lower portion of the heat dissipation plate 1-4.
  • the first side plate 1-1 and the second side plate 1-2 respectively have a first mounting groove 1-1-1 and the second mounting slot 1-2-1
  • the first mounting slot 1-1-1 has a first mounting screw hole 1-1-2
  • the second mounting slot 1-2-1 Having a second mounting screw hole 1-2-2
  • the lower portions of the two side plates of the outer casing 5 are respectively inserted into the first mounting groove 1-1-1 and the second mounting groove 1-2-1, and then through the screw and the first , the second mounting screw hole 1-1-2, 1-2- 2 fixedly connected to the first side plate 1-1 and the second side plate 1-2 of the heat dissipation substrate 1-3
  • the ends of the heat dissipation reverse 1-3 have the protrusions 1-3-1
  • the The protruding portion 1-3-1 has a mounting through hole 1-2-3
  • the terminal block 4 is two, respectively a first terminal block row 4-1 and a second terminal block row 4-2, The first terminal
  • the column is riveted to the top plate of the outer casing 5, the column has a screw hole, and the control circuit board 6 is fixed on the column by screws, and the installation of the cylinder is convenient.
  • the control circuit board 6 can also be fixed to the heat dissipation base 1 through the uprights and located in the outer casing 5.
  • the mounting through hole 1-3-3 of the extending portion 1-3-1 is a waist circular through hole, which is convenient for the customer to adjust the position when installing the product of the present invention.
  • the heat sink 1-4 is arranged in parallel with the first side plate 1-1 and the second side plate 1-2, and the heat dissipation substrate 1-3 has 8 Mounting screw holes 1-3-2, the thyristor module 3 and the first terminal block 4-1 and the second terminal block 4-2 are both fixed by the screws and the mounting screw holes 1-3-2 1 heat dissipation on the reverse 1-3.
  • the first terminal block 4-1 has a first connecting piece 4-1-1 and a second connecting piece 4-1-2.
  • the third connecting piece 4-1-3 each connecting piece 4-1-1, 4-1-2, 4-1-3 is provided with two fastening screws, and the second connecting terminal row 4-2
  • the fastening screws on the fifth connecting piece 4-2-2 and the sixth connecting piece 4-2-3 which are away from the 3 end of the controllable stone sealing block, that is, the outer end, are placed on the outer casing 5.
  • Each of the two fastening screws of the terminal block 4 is separated by a partition, and the wiring is independent. As shown in FIG.
  • the thyristor module 3 has two first thyristors 3-1 and two second thyristors 3-2, and the thyristor module One end of the first thyristor 3-1 of 3 is electrically connected to the fastening screw at the inner end of the first connecting piece 4-1-1 close thereto, and the other end of the first thyristor 3-1 and the first end thereof
  • the fastening screw of the inner end of the six connecting piece 4-2-3 is electrically connected; one end of the second thyristor 3-2 of the thyristor module 3 and the third connecting piece 4-1-3 adjacent thereto are inside
  • the fastening screw of the end is electrically connected, and the other end of the second thyristor 3-2 is electrically connected with the fastening screw of the inner end of the fourth connecting piece 4-2-1 adjacent thereto; the second connecting piece 4-1- 2
  • the fastening screw of the upper inner end and the fastening screw of the inner end of the fifth connecting piece 4-2-2 are connected by wires.
  • controllable stone module 3 can also have three thyristors, and the third thyristor can replace the fastening screw on the inner end of the second connecting piece 4-1-2 and the fourth connecting piece 4-2-2.
  • the connecting wires between the fastening screws at the ends are used to achieve different functions.
  • the heat dissipation substrate 1-3 has eight mounting screw holes 1-3-2, and the thyristor module 3 and the first terminal block 4-1 and the second terminal block 4-2 are both screwed and mounted.
  • the screw holes 1-3-2 are fixed to the heat dissipation substrate 1-3 of the heat dissipation base 1.
  • the structure of the heat dissipation base 1 can also be changed as follows: As shown in Figs. 16, 18, the extension portion 1-3-1 is located in the heat dissipation! ⁇ Both sides of the reverse 1 and the extending direction of the protruding portion 1-3-1 is perpendicular to the arrangement direction of the fins 1-4, and the first end face 1-6 and the second end face 1 of the heat dissipating substrate 1 7 has a first mounting slot 1-6-1 and a second mounting slot 1-7-1, respectively, and the first mounting slot 1-6-1 and the second mounting slot 1-7-1 have a first The screw hole 1-6-2 and the second connection screw hole 1-7-2 are connected.
  • the two side plates and the first end plate 5-4 of the outer casing 5 have heat dissipation holes 5-1, and the heat dissipation grille is used in this embodiment.
  • the second end plate 5-5 of the outer casing 5 has a terminal hole 5-2 for controlling the signal input end of the circuit and is provided with a terminal 6-2, and the top surface of the outer casing 5 has an indicator hole.
  • the lower end of the first end plate 5-4 and the second end plate 5-5 of the outer casing 5 each have a notch 5-6, and the upper edge of the notch 5-6 is mounted with a molding 5-3, and the molding is sealed.
  • the functions of the dustproof, the insulating, the retaining wire and the debris, the lower edges of the first end plate 5-4 and the second end plate 5-5 are higher than the lower edges of the two side plates of the outer casing 5, and 1.
  • the second terminal block 4-1, 4-2 are respectively inserted into the notches 5-6 of the first end plate 5-4 and the second end plate 5-5.
  • the heat sink 1-4 further has a heat dissipating rib 1-4-1.
  • Each heat sink 1-4 has a large number of heat dissipation ribs 1-4-1, which greatly increases the heat dissipation area and heat dissipation, which improves the reliability of the invention.
  • the heat sinks 1-4 are arranged in the same direction as the thyristor module 3 is arranged. There is a gap between the heat sink and the heat sink to form a heat dissipation channel for quick heat dissipation.
  • the arrangement direction of the heat sinks 1-4 may also be perpendicular to the arrangement direction of the thyristor modules 3.
  • the thyristor module 3 and the heat dissipation substrate 1-3 have a thermal grease layer.
  • the advantage of applying the thermal grease on the bottom surface of the thyristor module 3 is that since the bottom surface of the thyristor module 3 and the surface of the heat dissipation substrate 1-3 tend to have a certain unevenness, the two cannot be completely adhered. So increase the thermal grease layer, Thereby increasing the effective contact area and further improving the heat dissipation effect.
  • the heat dissipating base 1 having the same arrangement direction of the fins 1-4 and the same direction of the controllable sealing block 3 is taken as an example, and the thermal grease layer is coated on the bottom surface of the thyristor module 3, and then Align the thyristor module 3 with the mounting screw hole 1 -3-2 on the heat dissipation substrate 1-3, and fix the controllable stone module 3 with screws by using the mounting screw holes 1-3-2 on the heat dissipation base 1.
  • the first terminal block 4-1 and the second terminal block 4-2 are respectively placed at the two ends of the thyristor module 3,
  • One end of the first thyristor 3-1 is electrically connected to the fastening screw at the inner end of the first connecting piece 4-1-1 of the first terminal block 4-1, and the fastening screw of the inner end is close to the first One end of a controllable 3-4, the other end of the first controllable 3-1 and the second terminal block
  • the fastening screw of the inner end of the sixth connecting piece 4-2-3 on the 4-2-4 is electrically connected by a wire, and the fastening screw of the inner end is adjacent to the other end of the first thyristor 3-1, and the second thyristor One end of 3-2 is electrically connected to the fastening screw of the inner end of the third connecting piece 4-1-3 of the first terminal block 4-1 by a wire, and the fastening screw of the inner end is adjacent to the second controllable baby 3 One end of the -2, the other end of the second controllable baby 3-2 and the fastening screw at the inner end of the fourth connecting piece 4-2-1 of the second terminal block 4-2 are electrically connected by a wire, the inner The fastening screw of the end is adjacent to the other end of the second thyristor 3-2, the second connecting piece 4-1-2 of the first terminal block 4-1 and the first row of the second terminal block 4-2 The fastening screws at the inner ends of the five connecting pieces 4-2-2 are connected by wires.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
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Description

说 明 书 一种电容补偿投切开关 技术领域
本发明涉及开关领域, 具体地说, 涉及一种电容补偿投切开关。
背景技术
现有的可控硅开关, 有采用外露式的, 即可控硅组件和散热器均暴露在 外, 这些器件在这样的工作条件下, 很容易受到外界的干扰而造成可控硅误 触发, 且防护性能差, 操作人员安装调试过程中容易碰触, 造成触电等人身 安全事故, 于是人们考虑到了增加壳体, 但是壳体与散热底座的安装存在着 安装不稳固、 不密合等问题; 有的可控硅开关其接线端子排做的较小甚至无 接线端子排, 这就使得操作人员在安装使用的过程中, 接线很不方便, 较小 的接线端子排, 线路连接就很容易碰线, 造成短路, 这样就会影响到整个器 件的可靠性以及使用寿命, 对于无接线端子排的情况, 可控硅的连线就需要 夕卜接到距离可控硅开关较远的地方, 这样不仅导线需要" ^艮长, 造成浪费, 而且中间距离长了, 很容易受到外界的干扰, 从而降低了开关的可靠性; 现 有可控硅开关的线路板安装采用的结构复杂, 成本高, 控制线路板搁置在较 远的地方或者就嵌入可控硅组件之间, 给安装维护带来不便, 其电气间隙和 爬电距离难保证, 控制线路板工作会受到影响, 信号干扰大, 很容易引起可 控硅的误触发。
发明内容
本发明的目的 服现有技术的不足, 提供一种结构筒单稳固、 安装方 便、 容易维护、 电磁干扰小且可靠性高的电容补偿投切开关。
实现上述目的的技术方案是: 一种电容 M尝投切开关, 包括散热底座、 可控硅模块、 接线端子排、 外壳以及控制线路板, 所述可控硅模块安装在散 热底座上且位于外壳内, 控制线路板上的控制电路具有信号输入端和信号输 出端, 所述控制电路的信号输出端与可控 ^封莫块的控制端电连接, 其改进点 在于: 所述散热底座具有散热 反及其两侧下部的第一侧板、 第二侧板和中 间下部的散热片, 所述散热片与第一侧板和第二侧板平行布置; 所述散热基 板的第一侧板和第二侧板上分别具有第一安装槽和第二安装槽, 所述第一安 装槽上具有第一安装螺孔, 第二安装槽上具有第二安装螺孔, 所述外壳的两 个侧板下部分别插入第一安装槽和第二安装槽, 再通过螺釘和第一、 第二安 装螺孔固定连接在散热基板的第一侧板和第二侧板上; 所述散热_¾:反的两端 或者两侧具有伸出部,且所述伸出部具有安装通孔;所述接线端子排为两个, 分别为第一接线端子排和第二接线端子排, 所述第一接线端子排和第二接线 端子排均安装在散热底座的散热基板上, 所述可控硅模块位于第一接线端子 排和第二接线端子排之间, 且可控石封莫块与第一接线端子排之间以及可控硅 模块与第二接线端子排之间均通过导电体电连接; 所述控制线路板通过立柱 固定在外壳的顶板内壁上, 或者通过立柱固定在散热底座上且位于外壳内。
所述伸出部位于散热 反的两端, 且伸出部的伸出方向与散热片的布置 方向相平行。
所述伸出部位于散热 反的两侧, 且伸出部的伸出方向与散热片的布置 方向相垂直。
所述外壳的两个侧板和第一端板均具有散热孔, 所述外壳的第二端板具 有控制电路信号输入端的接线端子孔并装有接线端子, 所述外壳的顶板表面 具有指示灯孔, 所述外壳的第一端板和第二端板的下部均具有缺口, 缺口的 上沿上安装有嵌条, 所述第一端板和第二端板的下沿均高于外壳的两个侧板 下沿, 且第一、 第二接线端子排分别卡入第一端板和第二端板的缺口中。
所述散热基板上具有至少 8个安装螺孔, 所述可控硅模块以及第一接线 端子排和第二接线端子排均通过螺釘和安装螺孔固装在散热底座的散热基板 上。
所述第一接线端子排具有第一连接片、 第二连接片和第三连接片, 每个 连接片上均设有两个紧固螺釘, 第^妻线端子排具有第四连接片、 第五连接 片和第六连接片, 每个连接片上均设有两个紧固螺釘, 所述第一连接片、 第 二连接片、 第三连接片、 第四连接片、 第五连接片和第六连接片上远离可控 硅模块端也即外端的紧固螺釘均置于外壳外。
所述可控硅模块具有第一可控硅和第二可控硅两个可控硅, 第一可控硅 的一端和与其靠近的第一连接片上内端的紧固螺钉电连接, 第一可控硅的另 一端和与其靠近的第六连接片上内端的紧固螺釘电连接; 所述可控石封莫块的 第二可控硅的一端和与其靠近的第三连接片上内端的紧固螺钉电连接, 第二 可控硅的另一端和与其靠近的第四连接片上内端的紧固螺钉电连接; 所述第 二连接片上内端的紧固螺钉和第五连接片上内端的紧固螺钉之间用导电体连 接。
所述伸出部的安装通孔为腰圓形通孔。
所述可控硅模块与散热基板之间具有导热硅脂层。
当控制线路板通过立柱固定在外壳的顶板内壁上时, 立柱铆接在外壳的 顶板上, 立柱带有螺孔, 控制线路板通过螺釘固定在立柱上。
本发明的优点在于: 由于散热底座具有散热 反及其两侧下部的第一侧 板、 第二侧板和中间下部的散热片, 所述散热片与第一侧板和第二侧板平行 布置; 所述散热基板的第一侧板和第二侧板上分别具有第一安装槽和第二安 装槽, 所述第一安装槽上具有第一安装螺孔, 第二安装槽上具有第二安装螺 孔, 所述外壳的两个侧板下部分别插入第一安装槽和第二安装槽, 再通过螺 钉和第一、 第二安装螺孔固定连接在散热 反的第一侧板和第二侧板上, 因 而结构筒单稳固、 容易维护、 电磁干扰小、 可靠性高, 且安装槽可以对外壳 起到支撑定位作用, 更显得结构筒单美观, 经济实用; 又由于散热基板的两 端或者两侧具有伸出部, 且所述伸出部具有安装通孔, 因而便于用户安装本 产品; 再由于第一接线端子排、 第二接线端子排以及可控娃模块, 均安装在 散热底座的散热基板上, 所述可控硅模块位于第一接线端子排和第二接线端 子排之间, 且可控硅模块与第一接线端子排和第二接线端子排之间通过导电 体电连接, 因而接线端子排与散热底座集成化了, 接线方便了, 干扰小了, 接线空间大了, 不会绕线、 跳线或者串线, 电气间隙和爬电距离都保证了, 且容易维护; 还由于控制线路板通过立柱安装在外壳的顶板内壁上或者通过 立柱固定在散热底座上, 因而能减少电磁干扰, 有效防止可控硅的误触发, 可靠性也就高了。
附图说明
图 1为本发明的主视图;
图 2为本发明的俯视图;
图 3为本发明的左视图;
图 4为本发明的右视图;
图 5为图 4的 B部放大图;
图 6为本发明主视方向的解剖图;
图 7为本发明右视方向的解剖图;
图 8为去除外壳 5后的俯视图;
图 9为图 2的 A-A剖视图;
图 10为图 6的 C-C剖视图;
图 11为本发明的散热底座 1的结构示意图之一;
图 12为本发明的散热底座 1的结构示意图之二;
图 13为本发明的外壳 5的结构示意图;
图 14为本发明的可控 ^圭模块 3的结构示意图;
图 15为本发明的接线端子 的结构示意图;
图 16为本发明的散热底座 1的变换结构示意图之一;
图 17为本发明的端子板连接片的结构示意图;
图 18为本发明的散热底座 1的变换结构示意图之二。
具体实施方式 以下结合附图, 对本发明作进一步详细描述。
如图 1~12、 13-15, 17所示, 一种电容 M尝投切开关, 包括散热底座 1、 可控硅模块 3、 接线端子排 4、 外壳 5以及控制线路板 6, 所述可控硅模块 3 安装在散热底座 1上且位于外壳 5内, 控制线路板 6的控制电路具有信号输 入端和信号输出端, 所述控制电路的信号输出端与可控硅模块 3的控制端电 连接,所述散热底座 1具有散热基板 1-3及其两侧下部的第一侧板 1-1、第二 侧板 1-2和中间下部的散热片 1-4, 所述散热片 1-4与第一侧板 1-1和第二侧 板 1-2平行布置;所述散热 反 1-3的第一侧板 1-1和第二侧板 1-2上分别具 有第一安装槽 1-1-1和第二安装槽 1-2-1 , 所述第一安装槽 1-1-1上具有第一 安装螺孔 1-1-2, 第二安装槽 1-2-1上具有第二安装螺孔 1-2-2, 所述外壳 5 的两个侧板下部分别插入第一安装槽 1-1-1和第二安装槽 1-2-1 , 再通过螺釘 和第一、 第二安装螺孔 1-1-2、 1-2-2固定连接在散热基板 1-3的第一侧板 1-1 和第二侧板 1-2上; 所述散热 反 1-3的两端具有伸出部 1-3-1 , 且所述伸出 部 1-3-1具有安装通孔 1-3-3; 所述接线端子排 4为两个, 分别为第一接线端 子排 4-1和第二接线端子排 4-2,所述第一接线端子排 4-1和第二接线端子排 4-2均安装在散热底座 1的散热基板 1-3上,所述可控硅模块 3位于第一接线 端子排 4-1和第二接线端子排 4-2之间, 且可控硅模块 3与第一接线端子排 4-1之间以及可控硅模块 3与第二接线端子排 4-2之间均通过导线电连接;所 述控制线路板 6通过立柱固定在外壳 5的顶板内壁上且位于外壳 5内。 立柱 铆接在外壳 5顶板上,立柱带有螺孔,控制线路板 6通过螺釘固定在立柱上, 安装筒单方便。 当然, 所述控制线路板 6也可以通过立柱固定在散热底座 1 上且位于外壳 5内。所述伸出部 1-3-1的安装通孔 1-3-3为腰圓形通孔,便于 客户在安装本发明产品的时候进行位置的调整。
如图 1、 2、 6、 8、 9所示, 所述散热片 1-4与第一侧板 1-1和第二侧板 1-2平行布置, 所述散热基板 1-3上具有 8个安装螺孔 1-3-2, 所述可控硅模 块 3以及第一接线端子排 4-1和第二接线端子排 4-2均通过螺釘和安装螺孔 1-3-2固 散热底座 1的散热 反 1-3上。
如图 1、 2、 3、 4、 6、 7、 8、 9所示, 所述第一接线端子排 4-1具有第一 连接片 4-1-1、第二连接片 4-1-2和第三连接片 4-1-3,每个连接片 4-1-1、4-1-2、 4-1-3上均设有两个紧固螺钉, 第二接线端子排 4-2具有第四连接片 4-2-1、 第五连接片 4-2-2和第六连接片 4-2-3, 每个连接片 4-2-1、 4-2-2、 4-2-3上均 设有两个紧固螺钉, 所述第一连接片 4-1-1、 第二连接片 4-1-2、 第三连接片 4-1-3、 第四连接片 4-2-1、 第五连接片 4-2-2和第六连接片 4-2-3上远离可控 石封莫块 3端也即外端的紧固螺釘均置于外壳 5夕卜。 接线端子排 4的每两个紧 固螺釘之间均有隔板隔开, 接线独立。 如图 2、 3、 4、 7、 8、 9所示, 所述可控硅模块 3具有第一可控硅 3-1 和第二可控硅 3-2两个, 所述可控硅模块 3的第一可控硅 3-1的一端和与其 靠近的第一连接片 4-1-1上内端的紧固螺釘电连接,第一可控硅 3-1的另一端 和与其靠近的第六连接片 4-2-3上内端的紧固螺钉电连接;所述可控硅模块 3 的第二可控硅 3-2的一端和与其靠近的第三连接片 4-1-3上内端的紧固螺钉电 连接,第二可控硅 3-2的另一端和与其靠近的第四连接片 4-2-1上内端的紧固 螺釘电连接;所述第二连接片 4-1-2上内端的紧固螺釘和第五连接片 4-2-2上 内端的紧固螺 4丁之间用导线连接。 当然可控石圭模块 3也可具有三个可控硅, 第三可控硅可代替第二连接片 4-1-2上内端的紧固螺釘和第五连接片 4-2-2上 内端的紧固螺钉之间的连接导线, 用以实现不同的功能。
所述散热基板 1-3上具有 8个安装螺孔 1-3-2, 所述可控硅模块 3以及 第一接线端子排 4-1和第二接线端子排 4-2均通过螺釘和安装螺孔 1-3-2固装 在散热底座 1的散热基板 1-3上。
当然,散热底座 1的结构也可以是这样变换: 如图 16、 18所示, 所述伸 出部 1-3-1位于散热! ^反 1的两侧, 且伸出部 1-3-1的伸出方向与散热片 1-4 的布置方向相垂直, 所述散热基板 1的第一端面 1-6和第二端面 1-7上分别 具有第一安装槽 1-6-1和第二安装槽 1-7-1 , 所述第一安装槽 1-6-1和第二安 装槽 1-7-1上分别具有第一连接螺孔 1-6-2和第二连接螺孔 1-7-2。
如图 1、 3、 4、 9、 10、 13所示, 所述夕卜壳 5的两个侧板和第一端板 5-4 均具有散热孔 5-1 ,本实施例使用散热格栅,所述外壳 5的第二端板 5-5具有 控制电路信号输入端的接线端子孔 5-2并装有接线端子 6-2,所述外壳 5的顶 面具有指示灯孔。 所述外壳 5的第一端板 5-4和第二端板 5-5的下部均 具有缺口 5-6, 缺口 5-6的上沿上安装有嵌条 5-3, 嵌条起到密封、 防尘、 绝 缘、 挡电线头和碎物的作用, 所述第一端板 5-4和第二端板 5-5的下沿均高 于外壳 5的两个侧板下沿, 且第一、 第二接线端子排 4-1、 4-2分别卡入第一 端板 5-4和第二端板 5-5的缺口 5-6中。
如图 4、 5所示, 所述散热片 1-4上还具有散热筋 1-4-1。 每个散热片 1-4 上都具有很多散热筋 1-4-1 , 大大的增加了其散热面积,散热快,提高了本发 明的使用可靠性。
所述散热片 1-4的排列方向与可控硅模块 3排列方向相同。 散热片与散 热片之间有间隙, 形成散热通道, 散热快。 当然, 所述散热片 1-4的排列方 向也可以与可控硅模块 3排列方向相互垂直。
所述可控硅模块 3与散热基板 1-3之间具有导热硅脂层。 可控硅模块 3 的底面上涂覆有导热硅脂的好处是:由于可控硅模块 3的底面和散热基板 1-3 的表面往往有一定的不平整度,故两者不能完全密合,所以增加导热硅脂层, 从而增大了有效接触面积, 进一步提高了散热效果。
本发明安装的时候, 以选用散热片 1-4的排列方向与可控封莫块 3排列 方向相同的散热底座 1为例, 将导热硅脂层涂覆在可控硅模块 3底面上, 再 将可控硅模块 3对准散热基板 1-3上的安装螺孔 1 -3-2,利用散热底座 1上的 安装螺孔 1-3-2, 用螺釘将可控石圭模块 3固定在散热底座 1上, 可控硅模块 3 中的两个可控硅间隔排布, 第一接线端子排 4-1和第二接线端子排 4-2分别 放置在可控硅模块 3的两端, 第一可控硅 3-1的一端与第一接线端子排 4-1 的第一连接片 4-1-1上的内端的紧固螺钉用导线电连接, 所述内端的紧固螺 钉靠近第一可控娃 3-1的一端, 第一可控娃 3-1的另一端与第二接线端子排
4- 2的第六连接片 4-2-3上的内端的紧固螺钉用导线电连接,所述内端的紧固 螺钉靠近第一可控硅 3-1的另一端, 第二可控硅 3-2的一端与第一接线端子 排 4-1的第三连接片 4-1-3上的内端的紧固螺釘用导线电连接,所述内端的紧 固螺钉靠近第二可控娃 3-2的一端, 第二可控娃 3-2的另一端与第二接线端 子排 4-2的第四连接片 4-2-1上的内端的紧固螺釘用导线电连接,所述内端的 紧固螺釘靠近第二可控硅 3-2的另一端, 所述第一接线端子排 4-1的第二连 接片 4-1-2上和第 ^妻线端子排 4-2的第五连接片 4-2-2上的内端的紧固螺釘 之间用导线连接。 控制线路板 6固定在外壳 5的顶板内壁上, 控制线路板 6 上的指示灯 6-1穿过外壳 5的指示灯孔。 嵌条 5-3安装在外壳 5的第一端板
5- 4和第二端板 5-5的下部沿口上, 并与第一接线端子排 4-1、 第二接线端子 排 4-2接触, 起到隔离屏蔽作用。 外壳 5的两个侧板的下部分别插入第一侧 板 1-1和第二侧板 1-2的第一安装槽 1-1-1和第二安装槽 1-2-1 , 再用螺釘固 定。

Claims

权 利 要 求 书
1、 一种电 卜偿投切开关, 包^:热底座 ( 1 )、 可控硅模块 ( 3 )、接线 端子排(4)、 外壳(5)以及控制线路板(6), 所述可控硅模块 (3)安装在 散热底座( 1 )上且位于外壳( 5 )内, 控制线路板 ( 6 )上的控制电路具有信 号输入端和信号输出端,所述控制电路的信号输出端与可控硅模块 ( 3 )的控 制端电连接, 其特征在于:
a、所述散热底座( 1 )具有散热基板( 1-3 )及其两侧下部的第一侧板( 1-1 )、 第二侧板( 1-2 )和中间下部的散热片 ( 1-4 ), 所述散热片 ( 1-4 )与第一侧板
( 1-1 )和第二侧板 ( 1-2 )平行布置;
b、 所述散热基板 ( 1-3 )的第一侧板 ( 1-1 )和第二侧板 ( 1-2 )上分别具 有第一安装槽 ( 1-1-1 )和第二安装槽 ( 1-2-1 ), 所述第一安装槽 ( 1-1-1 )上 具有第一安装螺孔( 1-1-2 ),第二安装槽( 1-2-1 )上具有第二安装螺孔( 1-2-2 ), 所述外壳(5) 的两个侧板的下部分别插入第一安装槽 (1-1-1)和第二安装 槽(1-2-1), 再分别通过螺釘和第一、 第二安装螺孔( 1-1-2、 1-2-2 ) 固定连 接在散热_¾反 ( 1-3 )的第一侧板 ( 1-1 )和第二侧板 ( 1-2 )上;
c、 所述散热 反 ( 1-3 )的两端或者两侧具有伸出部( 1-3-1 ), 且所述伸 出部( 1-3-1 )具有安装通孔( 1-3-3 );
d、 所述接线端子排(4)为两个, 分别为第一接线端子排 (4-1 )和第二 接线端子排(4-2), 所述第一接线端子排(4-1 )和第二接线端子排 (4-2)均 安装在散热底座 ( 1 )的散热基板 ( 1-3 )上, 所述可控硅模块 ( 3 )位于第一 接线端子排(4-1)和第二接线端子排(4-2)之间, 且可控硅模块(3)与第 一接线端子排(4-1)之间以及可控硅模块 (3)与第二接线端子排(4-2)之 间均通过导电体电连接;
e、 所述控制线路板(6)通过立柱固定在外壳(5)的顶板内壁上, 或者 通过立柱固定在散热底座(1)上且位于外壳(5) 内。
2、根据权利要求 1所述的电^ 偿投切开关,其特征在于: 所述伸出部 ( 1-3-1 )位于散热 反 ( 1 )的两端, 且伸出部( 1-3-1 )的伸出方向与散热 片 ( 1—4 )的布置方向相平行。
3、根据权利要求 1所述的电^ 偿投切开关,其特征在于: 所述伸出部 ( 1-3-1 )位于散热_¾ ^反 ( 1 )的两侧, 且伸出部( 1-3-1 )的伸出方向与散热 片 ( 1—4 )的布置方向相垂直。
4、根据权利要求 1或 2或 3所述的电^ 偿投切开关, 其特征在于: 所 述外壳(5)的两个侧板和第一端板 (5-4)均具有散热孔(5-1), 所述外壳
(5)的第二端板 (5-5)具有控制电路信号输入端的接线端子孔(5-2)并装 有接线端子(6-2), 所述外壳(5)的顶板表面具有指示灯孔, 所述外壳(5) 的第一端板 (5-4)和第二端板 (5-5)的下部均具有缺口 (5-6), 缺口 (5-6) 的上沿上安装有嵌条 ( 5-3 ), 所述第一端板 ( 5-4 )和第二端板 ( 5-5 )的下沿 均高于外壳(5)的两个侧板的下沿, 且第一、 第二接线端子排(4-1、 4-2) 分别卡入第一端板(5-4)和第二端板 (5-5)的缺口 (5-6) 中。
5、根据权利要求 1或 2或 3所述的电^ 偿投切开关, 其特征在于: 所 述散热基板 ( 1-3 )上具有至少 8个安装螺孔( 1-3-2 ), 所述可控石圭模块 ( 3 ) 以及第一接线端子排 (4-1)和第二接线端子排 (4-2)均通过螺釘和安装螺 孔( 1-3-2 ) 固装在散热底座( 1 )的散热基板 ( 1-3 )上。
6、根据权利要求 1或 2或 3所述的电容补偿投切开关,其特征在于: 所 述第一接线端子排(4-1)具有第一连接片 (4-1-1)、 第二连接片 (4-1-2)和 第三连接片 (4-1-3), 每个连接片 (4-1-1、 4-1-2、 4-1-3 )上均设有两个紧固 螺釘, 第二接线端子排(4-2)具有第四连接片 (4-2-1)、 第五连接片 (4-2-2) 和第六连接片 (4-2-3), 每个连接片 (4-2-1、 4-2-2、 4-2-3 )上均设有两个紧 固螺釘,所述第一连接片(4-1-1)、第二连接片(4-1-2)、第三连接片(4-1-3)、 第四连接片 (4-2-1)、 第五连接片 (4-2-2)和第六连接片 (4-2-3)上远离可 控硅模块 (3)端也即外端的紧固螺釘均置于外壳(5)夕卜。
7、根据权利要求 6所述的电^ 偿投切开关,其特征在于: 所述可控硅 模块 (3)的第一可控硅 (3-1)的一端和与其靠近的第一连接片 (4-1-1)上 内端的紧固螺钉电连接, 第一可控硅(3-1 )的另一端和与其靠近的第六连接 片 (4-2-3)上内端的紧固螺釘电连接; 所述可控硅模块 (3)的第二可控硅
(3-2)的一端和与其靠近的第三连接片 (4-1-3)上内端的紧固螺釘电连接, 第二可控硅(3-2)的另一端和与其靠近的第四连接片 (4-2-1 )上内端的紧固 螺釘电连接;所述第二连接片( 4-1-2 )上内端的紧固螺釘和第五连接片( 4-2-2 ) 上内端的紧固螺钉之间用导电体连接。
8、根据权利要求 1所述的电^ 偿投切开关,其特征在于: 所述伸出部 (1-3-1)的安装通孔(1-3-3)为腰圓形通孔。
9、根据权利要求 1所述的电^ 偿投切开关,其特征在于: 所述可控硅 模块 (3)与散热基板 (1-3)之间具有导热硅脂层。
10、 根据权利要求 1所述的电容 M尝投切开关, 其特征在于: 当控制线 路板 (6)通过立柱固定在外壳(5)的顶板内壁上时, 立柱铆接在外壳(5) 的顶板上, 立柱带有螺孔, 控制线路板(6)通过螺釘固定在立柱上。
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