WO2018214908A1 - 一种新型微动开关 - Google Patents

一种新型微动开关 Download PDF

Info

Publication number
WO2018214908A1
WO2018214908A1 PCT/CN2018/088007 CN2018088007W WO2018214908A1 WO 2018214908 A1 WO2018214908 A1 WO 2018214908A1 CN 2018088007 W CN2018088007 W CN 2018088007W WO 2018214908 A1 WO2018214908 A1 WO 2018214908A1
Authority
WO
WIPO (PCT)
Prior art keywords
movable contact
contact piece
casing
connecting portion
water retaining
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2018/088007
Other languages
English (en)
French (fr)
Inventor
邵长城
周瑞元
刘云凤
袁敬鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Washing Machine Co Ltd
Original Assignee
Qingdao Haier Washing Machine Co Ltd
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.)
Filing date
Publication date
Application filed by Qingdao Haier Washing Machine Co Ltd filed Critical Qingdao Haier Washing Machine Co Ltd
Publication of WO2018214908A1 publication Critical patent/WO2018214908A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/0264—Protective covers for terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings

Definitions

  • the invention relates to the field of washing machines, and in particular to a novel micro switch.
  • the static contact piece connecting portion and the movable contact piece connecting portion of the micro switch are exposed to the air, and the working environment of the washing machine is dark and humid, and between the static contact piece connecting portion and the movable contact piece connecting portion
  • the water droplets are easily condensed on the isolation plate, and the water drops dripping onto the connecting portion of the movable contact piece, which causes the insulation resistance to become small, causing accidents such as electric leakage, ignition, arcing, or even fire, and in addition, causing corrosion of the electrical appliance. And rust can also cause an electric arc.
  • the static contact piece and the movable contact piece of the existing micro switch are generally exposed to the air, or the outer sleeve is provided with a non-sealed insulating sleeve, but this method is not conducive to the loss of water vapor, and is equally easy.
  • the above-mentioned insulating sleeve processing and assembly process is complicated and costly.
  • a novel micro switch includes a separating plate, a movable contact connecting portion and a base disposed under the separating plate, and a rear end of the separating plate and the movable contact connecting portion are respectively fixedly connected with one side of the base, and the separating plate
  • the left and right sides are respectively provided with a downwardly extending water retaining rib, and the water retaining rib is correspondingly disposed outside the moving contact piece connecting portion to prevent the condensed water drops from dripping onto the moving contact piece connecting portion.
  • the water retaining rib extends forward from the rear end of the partitioning plate, and the extending length thereof is greater than or equal to the length corresponding to the connecting portion of the movable contact piece;
  • the extension length of the water retaining rib is greater than the corresponding length of the connecting portion of the movable contact piece.
  • the distance between the two water retaining ribs in the horizontal direction is greater than the corresponding width of the moving contact piece connecting portion.
  • the movable contact connecting portion is disposed at an intermediate position between the two water retaining ribs, so that the distance between the movable contact connecting portion and the two water retaining ribs is equal.
  • a side of the water retaining rib close to the connecting portion of the movable contact piece is a slope formed by the lower end of the water retaining rib gradually approaching the partition plate;
  • the two water retaining ribs are adjacent to the movable contact piece connecting portion and the partitioning plate constitutes an arch structure.
  • the novel isolating switch further comprises a static contact piece and a movable contact piece disposed under the static contact piece, and the front end of the static contact piece and the movable contact piece are fixedly connected with the other side of the base, the static contact piece and the dynamic touch
  • the rear end of the piece is respectively provided with a static contact and a movable contact
  • the static contact piece and the movable contact piece are disposed inside the sealed outer casing fixedly connected with the base
  • the guide post is arranged under the movable contact
  • the guide post is
  • the upper end is disposed inside the outer casing and is in snap connection with the outer casing.
  • the lower end of the guide post passes through the outer casing and is disposed outside the outer casing for pushing the guide post, and the guide post pushes the movable contact to realize the movable contact and the static contact. Contact connection.
  • the outer casing comprises a first casing and a second casing, the first casing is fixedly connected with the base, and the second casing is detachably connected with the first casing to realize opening and closing of the casing.
  • first housing is provided with at least one pair of oppositely disposed protrusions or grooves
  • second housing is provided with corresponding grooves or protrusions, and the protrusions are fastened and connected with the grooves to A fixed connection of the first housing and the second housing is achieved.
  • the outer casing is longitudinally divided to form a first casing and a second casing, so that the first casing is disposed on the left side or the right side of the static contact piece and the movable contact piece, and the second casing is disposed on the static contact piece and the moving body
  • the right or left side of the contact is easy to assemble.
  • the upper end of the guiding post is provided with a radially protruding latch
  • the lower end of the first housing is provided with an extending portion extending in a direction of the movable contact, and the engaging portion is at least partially engaged above the extending portion, A fixed connection between the guide post and the first housing is achieved;
  • the end portion of the extending portion is provided with a notch, and a portion of the guiding post below the convex portion of the guiding post is embedded into the inside of the notch, and the second housing is fixedly connected with the first housing and cooperates with the notch to realize the guiding.
  • the present invention has the following beneficial effects:
  • the present invention prevents the water droplets on the partition plate from dripping onto the movable contact piece connecting portion by the water retaining rib. Specifically, the water mist on the surface of the separating plate is condensed into water droplets, and along the surface of the partition wall plate Gradually moving to the water retaining rib, the condensed water drops eventually fall from the lower end of the water retaining rib, thereby avoiding the insulation resistance becoming smaller and the electrical appliance corrosion, avoiding leakage caused by the reduction of the insulation distance, sparking, and even fire. The accident happened.
  • the invention avoids the entry of water vapor and the condensation of water droplets through the sealed outer casing, thereby avoiding the insulation distance becoming small and the corrosion of the electrical appliance, and avoiding leakage, sparking, and even fire caused by the reduction of the insulation distance. happened.
  • the water retaining rib and the outer casing of the invention have simple structure, convenient operation and low manufacturing cost, and are suitable for mass production.
  • FIG. 1 is a schematic structural view of a micro switch without a casing provided by the present invention
  • FIG. 2 is a schematic structural view of a micro switch after the casing is opened according to the present invention
  • FIG. 3 is a schematic structural view of a microswitch with a casing provided by the present invention.
  • FIG. 4 is a schematic structural view showing other angles of the micro switch provided by the present invention.
  • FIG. 5 is a schematic structural view showing other angles of the micro switch provided by the present invention.
  • an embodiment of the present invention introduces a novel micro switch including a spacer 2, a movable contact connecting portion 3 and a base 8 disposed under the spacer 2, and a spacer 2 and a moving body.
  • the rear end of the contact connecting portion 3 is fixedly connected to one side of the base 8 respectively.
  • the left and right sides of the separating plate 2 are respectively provided with a downwardly extending water retaining rib 9 , and the water retaining rib 9 is correspondingly disposed on the movable touch
  • the outside of the sheet connecting portion 3 prevents the condensed water droplets from dripping onto the moving contact piece connecting portion 3.
  • the static contact piece connecting portion 1 and the movable contact piece connecting portion 3 of the micro switch are exposed to the air, and the working environment of the washing machine is dark and humid, and the static contact piece connecting portion 1 and the movable contact piece connecting portion are
  • the separator 2 on the separator plate 3 is liable to condense water droplets, and the water droplets dripping onto the movable contact piece connecting portion 3 causes the insulation resistance to become small, causing electric leakage, ignition, arcing, and even fire, etc., in addition, It can also cause electrical corrosion, and rust can also cause an electric arc.
  • the invention prevents the water drops on the partition plate 2 from dripping onto the movable contact piece connecting portion 3 through the water retaining ribs 9.
  • the water mist on the surface of the separating plate 2 is condensed into water drops, and will follow the partition wall plate.
  • the surface gradually moves to the water retaining ribs 9 on both sides, and the condensed water drops finally fall from the lower end of the water retaining rib 9, thereby avoiding the insulation resistance becoming small and the electrical appliance being corroded, thereby avoiding leakage and ignition caused by the reduction of the insulation distance.
  • Accidents such as electric arcs and even fires occur.
  • the water retaining rib 9 has a width of 0.5 mm and a height of 1 mm.
  • a static contact piece connecting portion 1 is provided above the separation plate 2.
  • the front end of the insulation panel 2 is also provided with a water retaining rib 9 extending downward.
  • the water retaining rib 9 connects the two water retaining ribs 9 described above.
  • the left and right sides of the partitioning plate 2 are respectively provided with a downwardly extending water retaining rib 9, and the water retaining ribs 9 are correspondingly disposed outside the movable contact connecting portion 3.
  • the water retaining ribs 9 extend forward from the rear end of the insulating plate 2, and the extending length thereof is greater than or equal to the corresponding length of the movable contact piece connecting portion 3.
  • the water droplets condensed by the water mist corresponding to the moving contact piece connecting portion 3 on the partitioning plate 2 can be dripped from the water retaining rib 9, thereby preventing the dripping onto the moving contact piece connecting portion 3 .
  • the extension length of the water retaining rib 9 is greater than the corresponding length of the movable contact piece connecting portion 3.
  • the distance between the two water retaining ribs 9 in the horizontal direction is greater than the corresponding width of the movable contact piece connecting portion 3.
  • the above arrangement ensures that the water retaining ribs 9 are correspondingly disposed outside the movable contact piece connecting portion 3.
  • the movable contact piece connecting portion 3 is provided at an intermediate position between the two water retaining ribs 9, so that the distance between the movable contact piece connecting portion 3 and the two water retaining ribs 9 is equal.
  • the water retaining ribs 9 are formed by bending downwards on the left and right sides of the partitioning plate 2.
  • one side of the water retaining rib 9 near the movable contact piece 4 is a slope formed by the lower end of the water retaining rib 9 gradually approaching the partition plate 2.
  • the inclined surface provided above increases the drainage effect of the water retaining rib 9.
  • the side of the two water retaining ribs 9 adjacent to the movable contact piece connecting portion 3 and the partitioning plate 2 constitute an arch structure.
  • the lower end of the water retaining rib 9 is gradually contracted downward toward a portion to form an inverted cone shape.
  • the above arrangement causes the water drops to drip from one place, and a flow guiding device is arranged below the dripping to guide the dripping water drops to the outside to avoid corrosion of the electrical appliances.
  • the new type of isolating switch further includes a static contact piece 7 and a movable contact piece 4 disposed under the static contact piece 7, the static contact piece 7 and the movable contact.
  • the front end of the sheet 4 is fixedly connected to the other side of the base 8, and the rear end of the static contact piece 7 and the movable contact piece 4 are respectively provided with a static contact 6 and a movable contact 5, and the static contact piece 7 and the movable contact piece 4 are respectively provided.
  • the inside of the sealed casing 13 fixedly connected to the base 8 is provided with a guide post 12 below the movable contact 5.
  • the upper end of the guide post 12 is disposed inside the casing 13 and is coupled to the casing 13 to guide
  • the lower end of the column 12 passes through the outer casing 13 and is disposed outside the outer casing 13 for pushing the guide post 12, so that the guide post 12 pushes the movable contact 5 to realize the contact connection of the movable contact 5 with the stationary contact 6.
  • the static contact piece 7 and the movable contact piece 4 of the existing micro switch are generally exposed to the air, or a non-sealed insulating sleeve is disposed on the outside of the micro switch, but this method is not conducive to the loss of water vapor, and is equally easy.
  • the above-mentioned insulating sleeve processing and assembly process is complicated and costly.
  • the invention avoids the entry of water vapor and the condensation of water droplets through the sealed outer casing 13, thereby avoiding the insulation distance becoming smaller and the electrical appliance corrosion, and avoiding the occurrence of electric leakage, sparking, and even fire caused by the reduction of the insulation distance. .
  • the guide post 12 provided above When the guide post 12 provided above is not subjected to force, it will fall under the action of its own gravity, and the movable contact 5 is separated from the stationary contact 6.
  • the micro switch of the present invention makes the metal contact of the front section completely in a sealed space, and the closing and opening of the contact is realized by the plastic guide column 12 moving up and down, and the plastic component is difficult to use the flame retardant material. It is ignited to avoid fire accidents.
  • the micro switch of the present invention also provides a water retaining rib 9 having a width of 0.5 mm and a height of 1 mm on the plastic member of the micro-moving terminal, and the water retaining rib 9 prevents the water droplets formed by the condensation from dripping onto the metal.
  • the insulation distance of the terminals on the terminals becomes smaller, and the insulation distance becomes smaller, which may cause a short circuit and generate a large current, thereby causing a fire.
  • the invention has low manufacturing cost, good fireproof effect, avoids major fire accident caused by ignition of the electric device, and is beneficial for preventing oxidation of the electric device and good anti-corrosion effect. Conducive to mass production, simple structure and easy operation.
  • the static contact piece 7 is connected to the static contact piece connecting portion 1, the movable contact piece 4, and the movable contact piece connecting portion 3, or is integrally provided.
  • a spacer 2 is also provided between the static contact piece 7 and the movable contact piece 4.
  • the front end of the spacer 2 is fixedly connected to the base 8.
  • the outer casing 13 and the guide post 12 are made of flame-retardant plastic material to avoid fire accidents.
  • the difference between the embodiment and the implementations one and two is that the outer casing 13 includes a first casing 10 and a second casing 14, and the first casing 10 is fixedly connected with the base 8.
  • the second housing 14 is detachably coupled to the first housing 10 to effect opening and closing of the housing 13.
  • the housing 13 provided above can be opened for later maintenance.
  • the first housing 10 is provided with at least one pair of oppositely disposed protrusions or recesses
  • the second housing 14 is provided with corresponding grooves or protrusions, and the protrusions are engaged with the grooves.
  • the first housing 10 and the second housing 14 are provided with at least one pair of oppositely disposed protrusions or recesses
  • the second housing 14 is provided with corresponding grooves or protrusions, and the protrusions are engaged with the grooves.
  • the above arrangement makes assembly and disassembly of the first housing 10 and the second housing 14 simpler and faster.
  • the outer casing 13 is longitudinally divided to form a first casing 10 and a second casing 14, so that the first casing 10 is disposed on the left or right side of the static contact piece 7 and the movable contact piece 4, and the second casing 14 is provided on the right or left side of the static contact piece 7 and the movable contact piece 4 to facilitate assembly.
  • the above arrangement facilitates assembly of the guide post 12 and subsequent maintenance.
  • the upper end of the guide post 12 is provided with a radially protruding latch 11
  • the lower end of the first housing 10 is provided with an extending portion 15 extending in the direction of the movable contact 5 , and the latch 11 is at least partially engaged with Above the extension portion 15 to achieve a fixed connection between the guide post 12 and the first housing 10;
  • the end portion of the extending portion 15 is provided with a notch, and a portion of the guide post 12 below the card protrusion 11 is embedded inside the notch, and the second housing 14 is fixedly connected with the first housing 10 and is opposite to the notch. Cooperate to achieve a fixed connection between the guide post 12 and the outer casing 13.
  • the corresponding assembly of the guide post 12 and the movable contact 5 mounted on the first housing 10 is relatively simple, so that the stressed guide post 12 pushes the movable contact 5.
  • the second housing 14 is further provided with an extending portion 15 .
  • the guiding post 12 is first fixed to the second housing 14 and the second housing 14 is fixedly connected to the first housing 10 .
  • a fixed connection of the guide post 12 to the outer casing 13 is achieved.
  • the extending portion 15 of the first housing 10 or the second housing 14 is provided with a through hole through which the guide post 12 passes to realize the guide post 12 and the first housing 10 or the second housing 14 Fixed connection.

Landscapes

  • Switch Cases, Indication, And Locking (AREA)
  • Push-Button Switches (AREA)

Abstract

一种新型微动开关，包括隔离板、设于隔离板下方的动触片连接部和基座，隔离板和动触片连接部的后端分别与基座的一侧相固定连接，隔离板的左右两侧分别设有一个向下延伸的挡水筋，且挡水筋对应设于动触片连接部外侧，以避免凝结的水珠滴落至动触片连接部上。本发明通过挡水筋避免了隔离板上的水珠滴落至动触片连接部上，具体地，隔离板表面的水雾在凝结成水珠的过程中，会沿隔离板表面逐渐向挡水筋移动，凝结成的水珠最终从挡水筋的下端落下，从而避免了绝缘电阻变小以及电器腐蚀，避免了绝缘距离减小引起的漏电、打火起电弧等事故的发生。

Description

一种新型微动开关 技术领域
本发明涉及洗衣机领域，尤其是涉及一种新型微动开关。
背景技术
在现有的洗衣机中，微动开关的静触片连接部和动触片连接部均暴露在空气中，而洗衣机的工作环境阴暗潮湿，静触片连接部和动触片连接部之间的隔离板上容易凝结水珠，水珠滴落至动触片连接部上会造成绝缘电阻变小，引起漏电、打火起电弧、甚至起火等事故，除此之外，还会造成电器腐蚀，而生锈也会造成打火起电弧。
同时，现有微动开关的静触片和动触片一般是暴露在空气中，或是在二者外部套设有非密闭的绝缘套管，但这种方式不利于水汽的散失，同样容易凝结水珠以及电器腐蚀，除此之外，上述的绝缘套管加工及装配工艺较为复杂，成本较高。
有鉴于此，特提出本发明。
发明内容
本发明的目的在于提供一种新型微动开关，以避免凝结的水珠引起绝缘电阻变小以及电器腐蚀。
为实现该目的，本发明采用如下的技术方案：
一种新型微动开关，包括隔离板、设于隔离板下方的动触片连接部和基座，隔离板和动触片连接部的后端分别与基座的一侧相固定连接，隔离板的左右两侧分别设有一个向下延伸的挡水筋，且挡水筋对应设于动触片连接部外侧，以避免凝结的水珠滴落至动触片连接部上。
进一步地，所述挡水筋自隔离板的后端向前延伸，其延伸长度大于或等于动触片连接部对应的长度；
优选的，挡水筋的延伸长度大于动触片连接部对应的长度。
进一步地，两个挡水筋在水平方向上的距离大于动触片连接部对应的宽度。
进一步地，动触片连接部设于两个挡水筋的中间位置，令动触片连接部与两个挡水筋之间距离相等。
进一步地，所述挡水筋靠近动触片连接部的一侧为自挡水筋的下端逐渐靠近隔离板所形成的斜面；
优选的，两个挡水筋靠近动触片连接部的一侧与隔离板构成拱形结构。
进一步地，所述新型隔离开关还包括静触片和设于静触片下方的动触片，静触片和动触片的前端与基座的另一侧相固定连接，静触片和动触片的后端分别设有静触点和动触点，静触片和动触片设于与基座相固定连接的、密闭的外壳内部，动触点的下方设有导柱，导柱的上端设于外壳内部，并与外壳相卡接连接，导柱的下端穿过外壳并设于外壳外部，以用于推动导柱，令导柱推动动触点，实现动触点与静触点的接触连接。
进一步地，所述外壳包括第一壳体和第二壳体，第一壳体与基座相固定连接，第二壳体与第一壳体可拆卸连接，以实现外壳的开闭。
进一步地，所述第一壳体上设有至少一对相对设置的凸起或凹槽，第二壳体上设有相应的凹槽或凸起，凸起与凹槽相扣合连接，以实现第一壳体和第二壳体的固定连接。
进一步地，所述外壳经纵向分割形成第一壳体和第二壳体，令第一壳体设于静触片和动触片的左侧或右侧，第二壳体设于静触片和动触片的右侧或左侧，以便于装配。
进一步地，所述导柱的上端设有径向凸出的卡凸，第一壳体的下端设有朝动触点所在方向延伸的延伸部，卡凸至少部分卡接于延伸部上方，以实现导柱与第一壳体的固定连接；
优选的，所述延伸部的端部设有缺口，导柱上位于卡凸下方的部分嵌入至缺口内部，第二壳体与第一壳体相固定连接，并与缺口相配合，以实现导柱与外壳的固定连接。
与现有技术相比，本发明具有如下有益效果：
(1)本发明通过挡水筋避免了隔离板上的水珠滴落至动触片连接部上，具体地，隔离板表面的水雾在凝结成水珠的过程中，会沿隔壁板表面逐渐向挡水筋移动，凝结成的水珠最终从挡水筋的下端落下，从而避免了绝缘电阻变小以及电器腐蚀，避免了绝缘距离减小引起的漏电、打火起电弧、甚至起火等事故的发生。
(2)本发明通过密闭的外壳避免了水汽的进入以及水珠的凝结，从而避免了绝缘距离变小以及电器腐蚀，避免了绝缘距离减小引起的漏电、打火起电弧、甚至起火等事 故的发生。
(3)本发明的挡水筋和外壳结构简单，操作方便，制造成本低，适用于批量生产。
附图说明
附图作为本发明的一部分，用来提供对本发明的进一步的理解，本发明的示意性实施例及其说明用于解释本发明，但不构成对本发明的不当限定。显然，下面描述中的附图仅仅是一些实施例，对于本领域普通技术人员来说，在不付出创造性劳动的前提下，还可以根据这些附图获得其他附图。在附图中：
图1示出了本发明所提供的不带外壳的微动开关的结构示意图；
图2示出了本发明所提供的外壳打开后的微动开关的结构示意图；
图3示出了本发明所提供的带外壳的微动开关的结构示意图；
图4示出了本发明所提供的微动开关其他角度的结构示意图；
图5示出了本发明所提供的微动开关其他角度的结构示意图；
其中各组成名称如下：
1——静触片连接部，2——隔离板，3——动触片连接部，4——动触片，5——动触点，6——静触点，7——静触片，8——基座，9——挡水筋，10——第一壳体，11——卡凸，12——导柱，13——外壳，14——第二壳体，15——延伸部。
需要说明的是，这些附图和文字描述并不旨在以任何方式限制本发明的构思范围，而是通过参考特定实施例为本领域技术人员说明本发明的概念。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面对实施例中的技术方案进行清楚、完整地描述，以下实施例用于说明本发明，但不用来限制本发明的范围。
如图1-5所示，本发明的实施例介绍了一种新型微动开关，包括隔离板2、设于隔离板2下方的动触片连接部3和基座8，隔离板2和动触片连接部3的后端分别与基座8的一侧相固定连接，隔离板2的左右两侧分别设有一个向下延伸的挡水筋9，且挡水筋9对应设于动触片连接部3外侧，以避免凝结的水珠滴落至动触片连接部3上。
在现有的洗衣机中，微动开关的静触片连接部1和动触片连接部3均暴露在空气中，而洗衣机的工作环境阴暗潮湿，静触片连接部1和动触片连接部3之间的隔离板2上容易凝结水珠，水珠滴落至动触片连接部3上会造成绝缘电阻变小，引起漏电、打火起电 弧、甚至起火等事故，除此之外，还会造成电器腐蚀，而生锈也会造成打火起电弧。本发明通过挡水筋9避免了隔离板2上的水珠滴落至动触片连接部3上，具体地，隔离板2表面的水雾在凝结成水珠的过程中，会沿隔壁板表面逐渐向两侧的挡水筋9移动，凝结成的水珠最终从挡水筋9的下端落下，从而避免了绝缘电阻变小以及电器腐蚀，避免了绝缘距离减小引起的漏电、打火起电弧、甚至起火等事故的发生。
所述挡水筋9的宽度为0.5mm，高度为1mm。
所述隔离板2的上方设有静触片连接部1。
优选的，所述隔离板2的前端也设有向下延伸的挡水筋9。
所述挡水筋9连接上述的两个挡水筋9。
实施例一
如图1-5所示，在本实施例中，隔离板2的左右两侧分别设有一个向下延伸的挡水筋9，且挡水筋9对应设于动触片连接部3外侧，以避免凝结的水珠滴落至动触片连接部3上，挡水筋9自隔离板2的后端向前延伸，其延伸长度大于或等于动触片连接部3对应的长度。
通过上述设置，隔离板2上与动触片连接部3相对应处的水雾凝结成的水珠均能从挡水筋9滴落，从而避免了其滴落至动触片连接部3上。
优选的，挡水筋9的延伸长度大于动触片连接部3对应的长度。
其中，两个挡水筋9在水平方向上的距离大于动触片连接部3对应的宽度。
上述设置保证了挡水筋9对应设于动触片连接部3外侧。
具体地，动触片连接部3设于两个挡水筋9的中间位置，令动触片连接部3与两个挡水筋9之间距离相等。
所述挡水筋9经隔离板2的左右两侧向下弯折形成。
优选的，所述挡水筋9靠近动触片4的一侧为自挡水筋9的下端逐渐靠近隔离板2所形成的斜面。
上述设置的斜面提高了挡水筋9的引流效果。
更优选的，两个挡水筋9靠近动触片连接部3的一侧与隔离板2构成拱形结构。
进一步优选的，所述挡水筋9的下端朝一处逐渐向下收缩形成倒锥状。
上述设置令水珠从一处滴落，滴落处的下方设有导流装置，以将滴落的水珠导向外部，避免造成电器腐蚀。
实施例二
如图2-5所示，本实施例与实施例一的区别在于，所述新型隔离开关还包括静触片7和设于静触片7下方的动触片4，静触片7和动触片4的前端与基座8的另一侧相固定连接，静触片7和动触片4的后端分别设有静触点6和动触点5，静触片7和动触片4设于与基座8相固定连接的、密闭的外壳13内部，动触点5的下方设有导柱12，导柱12的上端设于外壳13内部，并与外壳13相卡接连接，导柱12的下端穿过外壳13并设于外壳13外部，以用于推动导柱12，令导柱12推动动触点5，实现动触点5与静触点6的接触连接。
现有微动开关的静触片7和动触片4一般是暴露在空气中，或是在二者外部套设有非密闭的绝缘套管，但这种方式不利于水汽的散失，同样容易凝结水珠以及生锈，除此之外，上述的绝缘套管加工及装配工艺较为复杂，成本较高。本发明通过密闭的外壳13避免了水汽的进入以及水珠的凝结，从而避免了绝缘距离变小以及电器腐蚀，避免了绝缘距离减小引起的漏电、打火起电弧、甚至起火等事故的发生。上述设置的导柱12在不受力时，会在自身重力的作用下下落，令动触点5与静触点6分离。
综上所述，本发明的微动开关令前段的金属触点完全处于一个密闭的空间里面，触点的闭合及断开靠塑料导柱12上下移动实现的，塑料部件采用阻燃材料就不易被引燃，从而避免火灾事故。本发明的微动开关还在微动插接端子的塑料件上设置宽度为0.5mm、高度为1mm的挡水筋9，此挡水筋9很好地防止结露形成的水滴滴落到金属端子上导致端子的绝缘距离变小，而绝缘距离变小会造成短路，形成大的电流，从而起火。本发明制造成本低，防火效果好，避免了电器件起燃引起的重大火灾事故，有利于防止电器件的氧化，防腐蚀效果好。利于批量生产，结构简单，操作方便。
静触片7与静触片连接部1、动触片4与动触片连接部3相连接，或一体设置。
静触片7与动触片4之间也设有隔离板2，该隔离板2的前端与基座8相固定连接。
所述外壳13和导柱12均为阻燃塑料材质，以避免起火事故。
实施例三
如图2-5所示，本实施例与实施一、二的区别在于，所述外壳13包括第一壳体10和第二壳体14，第一壳体10与基座8相固定连接，第二壳体14与第一壳体10可拆卸连接，以实现外壳13的开闭。
上述设置的外壳13可打开，以便于后期的维修。
优选的，所述第一壳体10上设有至少一对相对设置的凸起或凹槽，第二壳体14上设有相应的凹槽或凸起，凸起与凹槽相扣合连接，以实现第一壳体10和第二壳体14的固定连接。
上述设置令第一壳体10和第二壳体14的装配及拆卸更为简单快捷。
具体地，所述外壳13经纵向分割形成第一壳体10和第二壳体14，令第一壳体10设于静触片7和动触片4的左侧或右侧，第二壳体14设于静触片7和动触片4的右侧或左侧，以便于装配。
上述设置便于导柱12的装配以及后期的维修。
其中，所述导柱12的上端设有径向凸出的卡凸11，第一壳体10的下端设有朝动触点5所在方向延伸的延伸部15，卡凸11至少部分卡接于延伸部15上方，以实现导柱12与第一壳体10的固定连接；
优选的，所述延伸部15的端部设有缺口，导柱12上位于卡凸11下方的部分嵌入至缺口内部，第二壳体14与第一壳体10相固定连接，并与缺口相配合，以实现导柱12与外壳13的固定连接。
上述安装于第一壳体10上的导柱12与动触点5的对应装配较为简单，以实现受力的导柱12推动动触点5。
还可以，所述第二壳体14上设有延伸部15，通过上述方式先将导柱12固定于第二壳体14上，再将第二壳体14与第一壳体10相固定连接，实现导柱12与外壳13的固定连接。
还可以，所述第一壳体10或第二壳体14的延伸部15上设有供导柱12穿过的通孔，以实现导柱12与第一壳体10或第二壳体14的固定连接。
以上所述仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，虽然本发明已以较佳实施例揭露如上，然而并非用以限定本发明，任何熟悉本发明的技术人员在不脱离本发明技术方案范围内，当可利用上述提示的技术内容作出些许更动或修饰 为等同变化的等效实施例，但凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明方案的范围内。

Claims (10)

  1. 一种新型微动开关，包括隔离板(2)、设于隔离板(2)下方的动触片连接部(3)和基座(8)，隔离板(2)和动触片连接部(3)的后端分别与基座(8)的一侧相固定连接，其特征在于，隔离板(2)的左右两侧分别设有一个向下延伸的挡水筋(9)，且挡水筋(9)对应设于动触片连接部(3)外侧，以避免凝结的水珠滴落至动触片连接部(3)上。
  2. 根据权利要求1所述的一种新型微动开关，其特征在于，所述挡水筋(9)自隔离板(2)的后端向前延伸，其延伸长度大于或等于动触片连接部(3)对应的长度；
    优选的，挡水筋(9)的延伸长度大于动触片连接部(3)对应的长度。
  3. 根据权利要求1或2所述的一种新型微动开关，其特征在于，两个挡水筋(9)在水平方向上的距离大于动触片连接部(3)对应的宽度。
  4. 根据权利要求1-3任一所述的一种新型微动开关，其特征在于，动触片连接部(3)设于两个挡水筋(9)的中间位置，令动触片连接部(3)与两个挡水筋(9)之间距离相等。
  5. 根据权利要求1-4任一所述的一种新型微动开关，其特征在于，所述挡水筋(9)靠近动触片连接部(3)的一侧为自挡水筋(9)的下端逐渐靠近隔离板(2)所形成的斜面；
    优选的，两个挡水筋(9)靠近动触片连接部(3)的一侧与隔离板(2)构成拱形结构。
  6. 根据权利要求1-5任一所述的一种新型微动开关，其特征在于，所述新型隔离开关还包括静触片(7)和设于静触片(7)下方的动触片(4)，静触片(7)和动触片(4)的前端与基座(8)的另一侧相固定连接，静触片(7)和动触片(4)的后端分别设有静触点(6)和动触点(5)，静触片(7)和动触片(4)设于与基座(8)相固定连接的、密闭的外壳(13)内部，动触点(5)的下方设有导柱(12)，导柱(12)的上端设于外壳(13)内部，并与外壳(13)相卡接连接，导柱(12)的下端穿过外壳(13)并设于外壳(13)外部，以用于推动导柱(12)，令导柱(12)推动动触点(5)，实现动触点(5)与静触点(6)的接触连接。
  7. 根据权利要求6所述的一种新型微动开关，其特征在于，所述外壳(13)包括 第一壳体(10)和第二壳体(14)，第一壳体(10)与基座(8)相固定连接，第二壳体(14)与第一壳体(10)可拆卸连接，以实现外壳(13)的开闭。
  8. 根据权利要求7所述的一种新型微动开关，其特征在于，所述第一壳体(10)上设有至少一对相对设置的凸起或凹槽，第二壳体(14)上设有相应的凹槽或凸起，凸起与凹槽相扣合连接，以实现第一壳体(10)和第二壳体(14)的固定连接。
  9. 根据权利要求7或8所述的一种新型微动开关，其特征在于，所述外壳(13)经纵向分割形成第一壳体(10)和第二壳体(14)，令第一壳体(10)设于静触片(7)和动触片(4)的左侧或右侧，第二壳体(14)设于静触片(7)和动触片(4)的右侧或左侧，以便于装配。
  10. 根据权利要求9所述的一种新型微动开关，其特征在于，所述导柱(12)的上端设有径向凸出的卡凸(11)，第一壳体(10)的下端设有朝动触点(5)所在方向延伸的延伸部(15)，卡凸(11)至少部分卡接于延伸部(15)上方，以实现导柱(12)与第一壳体(10)的固定连接；
    优选的，所述延伸部(15)的端部设有缺口，导柱(12)上位于卡凸(11)下方的部分嵌入至缺口内部，第二壳体(14)与第一壳体(10)相固定连接，并与缺口相配合，以实现导柱(12)与外壳(13)的固定连接。
PCT/CN2018/088007 2017-05-26 2018-05-23 一种新型微动开关 Ceased WO2018214908A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710384613.3 2017-05-26
CN201710384613.3A CN107068446B (zh) 2017-05-26 2017-05-26 一种微动开关

Publications (1)

Publication Number Publication Date
WO2018214908A1 true WO2018214908A1 (zh) 2018-11-29

Family

ID=59610539

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/088007 Ceased WO2018214908A1 (zh) 2017-05-26 2018-05-23 一种新型微动开关

Country Status (2)

Country Link
CN (1) CN107068446B (zh)
WO (1) WO2018214908A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107068446B (zh) * 2017-05-26 2021-01-22 佛山市顺德海尔电器有限公司 一种微动开关
CN121331680B (zh) * 2025-12-16 2026-04-03 星奇(上海)半导体有限公司 陶瓷微动开关及机械式控制元件

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1104366A (zh) * 1993-09-16 1995-06-28 金星阿尔卑斯电子株式会社 微型开关
CN101944458A (zh) * 2010-08-20 2011-01-12 江苏西门控电器有限公司 塑壳断路器的报警触点装置
CN104347281A (zh) * 2013-07-26 2015-02-11 海尔集团公司 一种洗衣机微动开关、微动开关的制造方法以及洗衣机
CN105266741A (zh) * 2014-07-25 2016-01-27 青岛海尔洗碗机有限公司 一种溢水浮子盒及具有该溢水浮子盒的洗碗机
CN107068446A (zh) * 2017-05-26 2017-08-18 青岛海尔洗衣机有限公司 一种新型微动开关

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4981153B2 (ja) * 2010-04-28 2012-07-18 タキゲン製造株式会社 スイッチ付きマグネットキャッチ
CN205159136U (zh) * 2015-10-30 2016-04-13 中山市力科电器有限公司 一种微动开关支架
CN205828180U (zh) * 2016-06-27 2016-12-21 上海侨亨实业有限公司 一种洗衣机微动开关
CN106319866A (zh) * 2016-10-24 2017-01-11 珠海格力电器股份有限公司 洗衣机及其电器盒结构

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1104366A (zh) * 1993-09-16 1995-06-28 金星阿尔卑斯电子株式会社 微型开关
CN101944458A (zh) * 2010-08-20 2011-01-12 江苏西门控电器有限公司 塑壳断路器的报警触点装置
CN104347281A (zh) * 2013-07-26 2015-02-11 海尔集团公司 一种洗衣机微动开关、微动开关的制造方法以及洗衣机
CN105266741A (zh) * 2014-07-25 2016-01-27 青岛海尔洗碗机有限公司 一种溢水浮子盒及具有该溢水浮子盒的洗碗机
CN107068446A (zh) * 2017-05-26 2017-08-18 青岛海尔洗衣机有限公司 一种新型微动开关

Also Published As

Publication number Publication date
CN107068446B (zh) 2021-01-22
CN107068446A (zh) 2017-08-18

Similar Documents

Publication Publication Date Title
US9490081B2 (en) Limit switch
WO2018214908A1 (zh) 一种新型微动开关
US9941063B2 (en) Limit switch and method for producing same
CN206921752U (zh) 提高反向电寿命的高压直流接触器结构
CN205303389U (zh) 一种设有具备磁吹和气吹功能的灭弧机构的断路器
CN112635239A (zh) 真空灭弧室及真空灭弧室装配方法
CN108878209B (zh) 一种内置真空接触头机构的微型断路器
CN109473317B (zh) 一种带磁钢灭弧的高压直流继电器
CN204834436U (zh) 一种键盘开关底座与键帽的配合结构
CN206148342U (zh) 一种翘板式开关
CN111261466B (zh) 一种静簧的倒装式插接结构及其插装方法
CN100495616C (zh) 并联真空灭弧室的开关装置
WO2022141701A1 (zh) 一种隔离辅助触点的隔离罩及继电器
CN105990069B (zh) 一种接触器的隔弧结构
CN205645688U (zh) 接触器的隔弧结构
CN112786383B (zh) 一种带辅助触点的高压直流继电器
CN212934476U (zh) 一种真空灭弧室的动导电杆用导向套
CN204332879U (zh) 小型断路器机构及灭弧系统
KR20050024530A (ko) 플러그의 분리가 용이한 콘센트
CN208903884U (zh) 开关电器的排气机构及电动机启动器
CN205564578U (zh) 接触器灭弧装置
CN220253132U (zh) 一种环氧树脂型高压接触器
CN218631812U (zh) 一种手动复位过载保护器
CN205303321U (zh) 减小触头刚性碰撞的真空灭弧室
CN102810437A (zh) 用于断路器的灭弧装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18805887

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18805887

Country of ref document: EP

Kind code of ref document: A1