WO2015000344A1 - 一种继电器的框架及继电器 - Google Patents

一种继电器的框架及继电器 Download PDF

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Publication number
WO2015000344A1
WO2015000344A1 PCT/CN2014/078922 CN2014078922W WO2015000344A1 WO 2015000344 A1 WO2015000344 A1 WO 2015000344A1 CN 2014078922 W CN2014078922 W CN 2014078922W WO 2015000344 A1 WO2015000344 A1 WO 2015000344A1
Authority
WO
WIPO (PCT)
Prior art keywords
arc
frame
relay according
relay
frame part
Prior art date
Application number
PCT/CN2014/078922
Other languages
English (en)
French (fr)
Inventor
钟叔明
施生圣
Original Assignee
厦门宏发电力电器有限公司
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.)
Filing date
Publication date
Application filed by 厦门宏发电力电器有限公司 filed Critical 厦门宏发电力电器有限公司
Priority to EP14820573.5A priority Critical patent/EP3018686B1/en
Priority to ES14820573T priority patent/ES2811252T3/es
Priority to US14/902,915 priority patent/US10068731B2/en
Publication of WO2015000344A1 publication Critical patent/WO2015000344A1/zh

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/18—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041—Details concerning assembly of relays
    • H01H50/042—Different parts are assembled by insertion without extra mounting facilities like screws, in an isolated mounting part, e.g. stack mounting on a coil-support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041—Details concerning assembly of relays
    • H01H50/045—Details particular to contactors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/06—Bases; Casings; Covers having windows; Transparent cases or covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/546—Contact arrangements for contactors having bridging contacts
    • 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
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • H01H9/443—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2205/00—Movable contacts
    • H01H2205/002—Movable contacts fixed to operating part
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2235/00—Springs
    • H01H2235/012—Euler spring
    • 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
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/36—Metal parts
    • H01H9/362—Mounting of plates in arc chamber

Definitions

  • the present invention relates to a relay, and more particularly to a frame for a relay. Background technique
  • a relay is a breaking and closing device that can frequently close, carry and break normal current and specified overload current.
  • One type of relay is a device that uses a current flowing through a coil to generate a magnetic field to close the contacts to control the load. It is widely used in the fields of electricity, power distribution and electricity.
  • AC or DC contactors it generally includes a frame body, a terminal portion, a moving spring portion, a magnetic circuit system, and a pushing mechanism.
  • the lead end portion includes a lead end and a static contact; the stationary contact is fixed to the bottom end of the lead end.
  • the movable contact is fixedly mounted on the moving spring of the moving spring portion, and the moving spring portion is correspondingly located in the frame main body, and the moving spring portion is pushed by the pushing mechanism.
  • the static contacts of the leading end portion are respectively matched with the moving contacts of the moving spring portion to complete the opening or closing of the relay.
  • the main body of the frame body material is plastic.
  • the relay when the relay is applied to a relatively high load, when a circuit with a breaking voltage exceeding 10 V and a current exceeding 100 mA, a high temperature, high brightness, and electrical conduction are generated in the contact gap (or arc gap). Gas, called the arc. Arcing is a form of gas discharge. If the arc hits the plastic around the contacts, the plastic will carbonize, the insulation will drop sharply, and even in severe cases, the relay will burn out.
  • the existing relay generally includes a pushing mechanism and a frame portion, and the pushing mechanism includes a moving spring portion, a push rod portion, a compression spring, a static iron core, a moving iron core and a return spring, wherein the return spring is mounted on the moving iron Between the core and the static iron core, in this way, it is necessary to provide a counterbore between the moving iron core and the static iron core, so that the two ends of the returning spring are respectively positioned in the counterbore of the moving and static iron core, this structure will The magnetic pole surface opposite to the static iron core is reduced, and the driving force and the holding force of the moving iron core are weakened.
  • the frame portion generally includes a lead end portion and a frame as a current carrying case, the lead end portion is composed of a lead end and a static contact, and the lead end and the static contact are fixed by a welding phase, and the lead end portion is mounted on the frame to push
  • the moving spring portion of the mechanism is housed in the frame, and the moving contact of the moving spring portion and the static contact of the leading end portion are in a matching position.
  • permanent magnets are often placed around the frame.
  • the magnet reaches the extinction
  • the purpose of the arc due to the use of permanent magnets, will increase the cost of the product; of course, there are also solutions that do not use permanent magnets, but to eliminate arcing by increasing the contact gap. In this way, the product will be bulky and the product has a long operating time. In addition, the welding of the terminal and the static contact will also result in high cost and low efficiency.
  • the object of the present invention is to overcome the deficiencies of the prior art and provide a frame portion of a relay, which can achieve better arc extinguishing effect, and can avoid the disadvantages of product cost increase, product volume increase and product action time prolonged. It also features low cost, high efficiency, versatility and flexibility.
  • An object of one aspect of the present invention is to solve the technical problem of arc damage to a plastic frame in a relay of the prior art.
  • An object of one aspect of the present invention is to solve the problem of high cost of the prior art all-ceramic frame.
  • the technical solution adopted by the present invention to solve the technical problem thereof is: a frame portion of a relay, the frame being formed with an inner hollow portion and a peripheral window, the window communicating with the outer portion of the frame and the hollow portion;
  • the hollow portion is provided with at least one set of contacts capable of corresponding contact, and an arc gap is formed between the corresponding contact contacts, and the window is aligned with the arc gap from the outside.
  • Still another embodiment is a relay including a lead end portion, a moving spring portion, a magnetic circuit portion, a pushing mechanism, and a frame portion as described above, wherein the magnetic circuit portion is coupled to one side of the frame portion, The magnetic circuit portion drives the movable contact on the moving spring portion to operate by the pushing mechanism.
  • the frame body is a hollow injection molding frame, and has a plurality of windows aligned from the outside to the arc gap, which can ensure structural strength. Under the premise, save materials and reduce costs.
  • the window can be used to install features such as magnetic steel, arc-resistant sheets or arc-extinguishing arcs.
  • the ability to adapt the frame to more functions and requirements of relays or circuit breakers greatly enhances product availability and helps save mold and other manufacturing costs.
  • Fig. 1 is a schematic structural view of a relay frame according to a first embodiment of the present invention.
  • FIG. 2 is a top plan view showing the principle of operation of the relay frame according to the first embodiment of the present invention
  • Fig. 3 is a schematic structural view of a relay according to a first embodiment of the present invention.
  • Fig. 4 is a cross-sectional structural view showing a relay frame of a first embodiment of the present invention.
  • Fig. 5 is a cross-sectional structural view showing a relay according to a first embodiment of the present invention.
  • Fig. 6 is a schematic view showing the structure of an arc resistant sheet according to a first embodiment of the present invention.
  • Fig. 7 is a structural schematic view showing another embodiment of the arc resistant sheet of the present invention.
  • Fig. 8 is a schematic view showing the principle of arcing of the first embodiment of the present invention.
  • Fig. 9 is a top plan view showing the principle of operation of the relay frame according to the second embodiment of the present invention.
  • Figure 10 is a top plan view showing the principle of operation of the relay frame of the second embodiment of the present invention.
  • Figure 11 is a schematic view showing the principle of action of the arcing of the embodiment of the present invention.
  • Fig. 12 is a perspective view showing the configuration of a third embodiment of the present invention.
  • Figure 13 is a cross-sectional view showing the structure of the first embodiment of the present invention.
  • Figure 14 is a perspective view showing the structure of the frame of the first embodiment of the present invention.
  • Figure 15 is a schematic view showing the structure of the frame (the bottom surface is turned forward) of the first embodiment of the present invention.
  • Figure 16 is a schematic view showing the cooperation of the leading end portion of the first embodiment and the second arc extinguishing piece of the first embodiment of the present invention
  • Figure 17 is a schematic view showing the arc extinguishing principle of the first embodiment of the present invention.
  • Fig. 18 is a view showing the action of the arc extinguishing sheet of the first embodiment of the present invention.
  • Figure 19 is a schematic view of the present invention assembled on a relay
  • top, bottom, top, bottom, and the like referred to in the present invention are merely used to explain the relative positional relationship between the components, and do not limit the specific mounting orientation of the components in the present invention.
  • a first embodiment of the present invention provides a relay frame including a lead end portion 2, a frame main body 1, at least one magnetic steel 4, and at least one arc resistant sheet 5.
  • the frame body 1 is internally formed with a hollow portion 10 including an inner hollow portion 11 and an outer peripheral window 15, the window 15 communicating with the outer portion of the frame body 1 and the hollow portion 11; the hollow portion 11 accommodating the moving spring of the relay of the relay
  • the terminal portion 2 includes a terminal end 21 and a stationary contact 22; the stationary contact 22 is fixed to the bottom end of the terminal 21, and the contact surface of the stationary contact 22 faces the hollow portion 11.
  • the static contact 22 at the bottom of the terminal portion 2 is respectively matched with the movable contact 31 of the moving spring portion 3 (see FIG. 4); the static contact 22 and the movable contact 31 can be correspondingly contacted, and an arc is formed therebetween.
  • Gap A, each window 15 can be aligned from the outside to the arc gap A (see Figure 4).
  • the contact corresponding to the contact here may be a set of electrical contacts that can contact each other, or two or more sets, each set of contacts including a movable contact 31 and a static contact 22.
  • the gap between the arc combustion between the contacts is the arc gap A, which can be smaller than the maximum gap between the contacts.
  • the magnetic steel 4 can be mounted to the window 15 of the frame body 1, and the magnetic steel 4 is located on the outer periphery of the hollow portion 11, and the magnetic steel 4 can be applied to the arc gap A in the hollow portion 11 to blow the arc generated when the contact is broken.
  • the arc-resistant sheet 5 is attached to the window 15 of the frame body 1, and the arc-resistant sheet 5 is located in the direction in which the magnetic steel 4 blows.
  • the arc-proof sheet 5 is located in the magnetic steel 4 "magnetic steel blowing action direction" means that under the magnetic field of the magnetic steel 4, the arc at the arc gap A is blown to the outer circumferential direction, and the arc-resistant sheet 5 can block the magnetic steel 4 from blowing out.
  • the arc is used to extinguish the arc.
  • the ceramic sheets 5 may be symmetrically centered with the center of the arc gap A.
  • the embodiment of the present invention symmetrically mounts the arc resistant sheet 5 of a high temperature resistant material, such as a ceramic sheet, in the vicinity of the arc gap A.
  • the arc-resistant material has a cooling effect on the arc, which can improve the reliability and electrical life of the product, and the cost is lower than that of the all-ceramic frame, and the frame structure is more compact.
  • the magnetic steel 4 is an arc blowing device, and of course, an electromagnetic arc blowing device or other arc blowing device.
  • the frame main body 1 has a hollow rectangular parallelepiped shape, and the frame main body 1 is made of plastic.
  • the frame main body 1 includes a plurality of cylinders 12, an upper mounting portion 13, and a lower connecting portion 14.
  • the respective cylinders 12 are spaced apart from each other on the outer circumference of the hollow portion 11, and an open window 15 is formed between the adjacent cylinders 12.
  • the upper mounting portion 13 is connected to each of the pillars 12 at the upper portion.
  • the top of the connecting plate 133 of the main body of the upper mounting portion 13 has a convex fixing portion 131.
  • the two ends of the fixing portion 131 have a circular shape, and the fixing portion 131 is formed with two spaced spaces.
  • the limiting hole 132 is a stepped hole for facilitating the fixing of the leading end portion 2 of the relay.
  • the lower connecting portion 14 connects the respective columns 12 at the lower portion.
  • the lower connecting portion 14 is a long plate member connected between the respective columns 12, and the lower connecting portion 14 is fixedly connected to the magnetic circuit system 6
  • the engaging portion 141 is provided, and of course, it may be a screwing or riveting portion.
  • the frame body 1 is a hollow frame, and has a plurality of windows 15 for aligning the arc gaps from the outside, which can save materials and reduce costs while ensuring structural strength.
  • the contactable contacts here are two groups of spaces, corresponding to an arc gap A having two intervals, the contacts respectively include a movable contact 31 and a static contact 22, and the static contact 22 is fixed to the frame.
  • the movable contact 31 On the inner side of the upper portion of the main body 1, the movable contact 31 is correspondingly located in the hollow portion 11, and the movable contact 31 can be driven by the pushing mechanism to be in contact with or disconnected from the stationary contact 22.
  • the positions of the windows 15 are aligned from the outside to the arc gap A, and the two magnets 4 are respectively mounted on the extension of the line between the two arc gaps A.
  • the connection between the two arc gaps A can be the connection between the center points.
  • the magnetic steel 4 can be embedded in the frame body, no need to add additional fixed parts, no need to leave the installation space of the fixed parts, reduce the outer dimensions of the product, and the magnetic steel can be close to the contacts, It is beneficial to increase the strength of the magnetic field passing through the contacts, thereby improving the arc blowing ability.
  • Two pairs of arc-proof sheets 5 are respectively mounted on the two windows 15 outside the arc gap, and the center connection of the corresponding two arc-resistant sheets 5 is perpendicular to the line between the two arc gaps A.
  • the high temperature resistant material of the arc resistant sheet 5 can be a PET/GF flame retardant arc resistant composite material, a composite PTFE arc resistant, a heat resistant arc resistant silicone plastic or a ceramic sheet, wherein the ceramic sheet has low cost and stable performance,
  • the arc resistant sheet 5 is made of a ceramic sheet material.
  • at least one side of the arc-proof sheet 5 extends along the side of the corresponding window 15 to form an inner extending portion 52, and the arc-resistant sheet 5 is formed into an L-shaped right-angle shape because the arc is in a column shape during operation. Steel 4 magnetic blowing is thrown to one side, and right-angled ceramic sheets can increase the protection range.
  • the top or bottom surface of the arc-resistant sheet 5, or both sides may partially extend outward to form a bump 51 or a concave block.
  • a finite-position rib 151 is formed on the position of the arc-proof sheet 5 of each window 15, and the two ends of the limiting rib 151 are connected to the two-sided cylinder 12, and the shape of the limiting rib 151 matches the shape of the arc-resistant sheet 5, as shown in the figure. 1 to FIG. 3, the central portion of the limiting rib 151 has a U-shaped groove, and the surface of the limiting rib 151 has a snap strip on the surface contacting the edge of the arc-resistant sheet 5, and the snap strip has an outer The inner clamp is tight against the slope of the edge of the arc sheet 5.
  • a corresponding nip portion is formed at the mounting position of each of the windows 15.
  • the arc-resistant sheet 5 is attached to the frame body 1 by engagement or insert bonding. At the same time, the outer casing 7 of the product will bear against the arc-proof sheet 5 on the outside, thereby limiting the six directions of the arc-resistant sheet 5 to each other.
  • the arc-resistant sheet 5 can be integrally molded with the frame body, and can be inserted into the frame body or the like through the upper sliding groove.
  • the two magnetic steels 4 are respectively installed on an extension line which is outwardly connected between the two arc gaps.
  • the polarity of the two magnetic steels is not particularly required, and preferably two magnetic steels.
  • the opposite faces are opposite in polarity.
  • the direction of the magnetic line is perpendicular to the direction of the arc created between the contacts.
  • the magnetic steel is symmetrically disposed on both sides of the frame, so that after the arc is formed between the contacts, the two magnetic steels can respectively blow the arcs in the two side directions, even if the current directions of the two contacts are reversed, the magnetic The blowing direction is still pointing to the side. Even if the polarity of the two magnetic steels is incorrectly installed, the direction of the magnetic blowing is still pointing to the side, which ensures the safety of the product.
  • a pair of arc-resistant sheets 5 may also be mounted on the window 15 on the extension line connecting the two arc gaps A outward, and the magnetic The steel 4 is mounted on the two windows 15 outside the arc gap A, and the corresponding two magnetic steel center connections are perpendicular to the two arc gaps A.
  • the arc-resistant sheet 5 is located in the direction in which the magnetic steel 4 is blown. At this time, according to the flow direction of the current, the polarity of the four magnetic steels should be set by the two modes shown in Fig.
  • the relay generally further includes a lead end portion 2, a moving spring portion 3, a magnetic circuit system 6, a casing 7, and a pushing mechanism 8.
  • the terminal portion 2 includes a terminal end 21 and a stationary contact 22; the stationary contact 22 is fixed to the bottom end of the terminal 21, for example, by riveting, and the contact surface of the stationary contact 22 faces the hollow portion 11.
  • the movable contact 31 is fixedly mounted on the movable spring 32 of the moving spring portion 3, and the moving spring portion 3 is correspondingly located in the hollow portion 11.
  • the pushing mechanism 8 is driven by the magnetic circuit system 6 to drive the moving spring portion 3 to move.
  • the pushing mechanism 8 includes a pushing rod 81, a limiting elastic member 82, an insulating sleeve 83 and the like.
  • the pushing rod 81 is fitted to the coil 62 of the magnetic circuit system 6.
  • the inner end is extended outwardly and fixed to the insulating sleeve.
  • the limiting elastic member 82 is a spring.
  • the upper end surface of the moving spring portion 3 abuts against the insulating sleeve 83.
  • the lower end surface of the moving spring portion 3 is covered by the insulating sleeve 83 and the limiting spring 82.
  • the magnetic circuit system 6 drives the moving spring portion 3 to move by the pushing mechanism 8.
  • the static contacts 22 of the two terminal portions 2 are respectively matched with the movable contacts 31 of the moving spring portion 3 to complete the opening or closing of the relay.
  • the arc-proof material of the above embodiment of the present invention has the effect of cooling the arc, which can improve the reliability and electrical life of the product, and the cost is lower than that of the all-ceramic frame, and the frame structure is more compact.
  • a frame portion of a relay also includes a lead end portion 2 and a frame body 1;
  • the lead end portion 2 includes a lead end 21 and a stationary contact 22, which are statically touched.
  • the point 22 is fixed to the bottom end of the lead end 21;
  • the frame body 1 is provided with a hollow portion 10 for accommodating the moving spring portion 3 of the push mechanism of the relay, and the two lead end portions 2 are respectively mounted on the top of the hollow portion 10 of the frame.
  • the stationary contacts 22 of the two leading end portions are respectively fitted to the movable contacts 31 of the moving spring portion 3.
  • a plurality of slots 16 are symmetrically disposed on the two sides of the hollow portion 10 of the frame body 1, and the plurality of slots 16 are distributed from top to bottom, and the slots are Both ends of the frame 16 communicate with the outer portion of the frame body 1 and the hollow portion 10 of the frame, respectively.
  • the plurality of slots 16 are spaced apart from top to bottom.
  • first first arc extinguishing piece 17 and the at least two second arc extinguishing pieces 18 are further included; the two first arc extinguishing pieces 17 are symmetrically mounted in the uppermost slot 16 on both sides of the frame. And the two first arc extinguishing pieces 17 are respectively close to or abut against the corresponding lead end portions 2; the at least two second arc extinguishing pieces 18 are symmetrically mounted in the corresponding slots 16 on both sides of the frame, And immediately adjacent to the first arc extinguishing piece 17, and the length of the second arc extinguishing piece 18 is smaller than the length of the first arc extinguishing piece 17, so that the second arc extinguishing piece 18 and the leading end portion are projected on a plane.
  • the second arc extinguishing piece 18 is four, and two sides of the frame main body 1 are respectively installed;
  • the first arc extinguishing piece 17 and the second arc extinguishing piece 18 are respectively provided with an opening toward the inside of the frame, that is, the first arc extinguishing piece 17 is provided with an opening 171 facing the inside direction of the frame, and the second arc extinguishing piece 18 is also provided. There is an opening facing the inside of the frame (figure Not shown).
  • the opening 171 of the first arc extinguishing piece approaches or abuts against the corresponding leading end portion 2.
  • the opening 171 of the first arc extinguishing piece 17 is Y-shaped, of course, it may be V-shaped; the opening of the second arc-extinguishing piece 18 is also Y-shaped.
  • the opening 171 of the first arc extinguishing piece is adjacent to or abuts against the stationary contact 22 of the corresponding leading end portion.
  • the top of the hollow portion of the frame is also provided with a recess for placing a return spring of the push mechanism to provide a return force to the push mechanism.
  • the top of the hollow portion of the frame body 1 is also provided with a recess 19 for placing a return spring of the urging mechanism to provide a return force to the urging mechanism.
  • the static contact 22 and the bottom end of the lead end 21 are fixed by riveting.
  • a frame portion of a relay according to a third embodiment of the present invention is characterized in that a plurality of slots 16 are symmetrically disposed on two sides of the frame, and the plurality of slots 16 are distributed from top to bottom, and two ends of the slot 16 are respectively connected.
  • the outer portion of the frame body 1 and the hollow portion 10 of the frame so that whether or not the arc extinguishing piece is used according to different loads can be selected, and in the case of a small load, the arc extinguishing piece can be omitted, but the contact gap can be used.
  • the first arc extinguishing piece 17 is inserted into the slot 16 of the uppermost layer on both sides of the frame, and the two first arc extinguishing pieces 17 are respectively close to or abut against the contacts 12 of the corresponding leading end portions.
  • one or more second arc extinguishing pieces 18 are further inserted under the first arc extinguishing piece 17 on both sides of the frame to cooperate with the first arc extinguishing piece 17 to realize arc extinguishing, one or more second.
  • the arc extinguishing pieces are distributed at a distance below the first arc extinguishing piece 1, so that the arcs can be divided into a plurality of short arcs a (as shown in Fig. 17) to extinguish the arc.
  • the first arc extinguishing piece 17 and the second arc extinguishing piece 18 are respectively provided with an opening toward the inside of the frame, and the openings of the first arc extinguishing piece and the second arc extinguishing piece are both Y type (may also be V type), in this structure, the arc current is distorted in the magnetic path generated in the surrounding space, thus generating a suction force F for pulling the arc b toward the arc extinguishing piece (as shown in Fig. 18, B in Fig. 18) Magnetic flux), which can better achieve arcing and arc extinguishing.
  • a recess 19 for placing a return spring is disposed on the top of the hollow portion 10 of the frame, which can provide a return force to the pushing mechanism, and eliminates the prior art to place a counterbore between the moving iron core and the static iron core for placing.
  • the drawbacks of the return spring are fixed by riveting, which can reduce cost and improve efficiency.

Abstract

一种继电器的框架部分及继电器，所述框架形成有内部的中空部和外周的窗口，所述窗口连通所述框架的外部和所述中空部；所述中空部内容置至少一组能对应接触的触点，所述能对应接触触点之间形成有一弧隙，所述窗口从外侧对齐所述弧隙。框架主体为缕空式注塑框架，且具有多个从外侧对齐所述弧隙的窗口，能在保证结构强度的前提下，节省材料，降低成本。窗口可供安装磁钢、耐电弧片或引弧灭弧片等功能部件。使框架能适用于更多功能和要求的继电器或断路器，大大提升产品适用范围，并能有助于节省模具及其它制造成本。

Description

一种继电器的框架及继电器 技术领域
本发明涉及一种继电器， 特别是涉及一种继电器的框架。 背景技术
继电器是一种能频繁关合、 承载和开断正常电流及规定的过载电流的开断和关合装 置。 现有的一种继电器是利用线圈流过电流产生磁场， 使触头闭合， 以达到控制负载的电 器。 它广泛应用于电力、 配电与用电等领域。
在一些交流或者直流接触器（继电器） 中， 一般包括框架主体、 引出端部分、 动簧部 分、磁路系统、推动机构。引出端部分包括引出端和静触点； 静触点固接在引出端的底端。 动触点固定安装于动簧部分的动簧片上， 动簧部分对应位于框架主体内， 动簧部分受推动 机构推动。使引出端部分的静触点分别与动簧部分的动触点对应配合， 完成继电器的通或 断。 这里框架主体材料主体为塑料。
然而在继电器应用于比较高的负载时， 开断电压超过 10V、 电流超过 100mA的电路 时， 在触头间隙 （或称弧隙） 中会产生一团温度极高、 亮度极强并能导电的气体， 称为电 弧。 电弧属于气体放电的一种形式。 如果电弧打在触点周边的塑料上， 会使塑料碳化， 绝 缘性会急剧下降， 严重时甚至导致继电器烧毁。
现有技术直流继电器方案中， 还有一种是将框架整体由陶瓷材质制成。 如公开号为
CN102737914A中国发明专利， 但由于陶瓷材质的特性， 此类框架结构一般较复杂， 且尺 寸不容易保证、 重量重， 导致价格高昂。
现有的这种继电器通常包括推动机构和框架部分， 推动机构包括有动簧部分、推动杆 部分、压缩弹簧、静铁芯、动铁芯和返力弹簧， 其中， 返力弹簧装在动铁芯与静铁芯之间， 这样， 就需要在动铁芯和静铁芯中间设置沉孔， 让返力弹簧的两端分别定位在动、 静铁芯 的沉孔中， 这种结构， 会导致动铁芯与静铁芯相对的磁极面减小， 减弱动铁芯的驱动力和 保持力， 为了能够保证动铁芯的驱动力和保持力， 往往需要做更大的线圈， 从而造成了成 本的提高以及产品体积的增大。框架部分通常包括引出端部分和作为载流壳体的框架， 引 出端部分由引出端和静触点构成， 且引出端和静触点是采用焊接相固定， 引出端部分装在 框架上， 推动机构的动簧部分容纳在框架中， 并使动簧部分的动触点与引出端部分的静触 点处在相配合的位置， 为了能够灭弧， 往往会在框架四周放置永磁体， 通过永磁体达到灭 弧的目的， 由于使用了永磁体， 就会使产品成本上升； 当然， 也有的方案是不用永磁体， 而是通过加大触点间隙来灭弧， 这一方案， 触点间隙要做很大， 这样， 就会造成产品体积 大， 且产品动作时间长的弊端； 另外， 引出端和静触点采用焊接， 也会造成成本高， 效率 低的弊端。 发明内容
本发明的目的在于克服现有技术之不足， 提供一种继电器的框架部分， 既可以达到较 好的灭弧效果， 又能够避免产品成本上升、 产品体积增大以及产品动作时间延长的弊端， 同时， 还具有成本低、 效率高和通用性、 灵活性的特点。
本发明一方面的目的在于， 为解决现有技术继电器中电弧损坏塑料框体的技术问题。 本发明一方面的目的在于， 为解决现有技术继电器全陶瓷框架成本高的问题。
本发明解决其技术问题所采用的技术方案是： 一种继电器的框架部分， 所述框架形成 有内部的中空部和外周的窗口， 所述窗口连通所述框架的外部和所述中空部； 所述中空部 内容置至少一组能对应接触的触点， 所述能对应接触触点之间形成有一弧隙， 所述窗口从 外侧对齐所述弧隙。
再一实施是一种继电器， 包括引出端部分、 动簧部分、 磁路部分、 推动机构及如前所 述的框架部分， 其中， 所述磁路部分连接于所述框架部分一侧， 所述磁路部分通过推动机 构带动所述动簧部分上的动触点运作。
由上述对本发明的描述可知， 与现有技术相比， 本发明具有如下有益效果： 框架主体为缕空式注塑框架， 且具有多个从外侧对齐所述弧隙的窗口， 能在保证 结构强度的前提下， 节省材料， 降低成本。 窗口可供安装磁钢、 耐电弧片或引弧灭弧 片等功能部件。使框架能适用于更多功能和要求的继电器或断路器， 大大提升产品适 用范围， 并能有助于节省模具及其它制造成本。 附图说明
图 1为本发明第 实施例的继电器框架的结构示意图。
图 2为本发明第 实施例的继电器框架的作用原理俯视示意图 (
图 3为本发明第 实施例的继电器的结构示意图。
图 4为本发明第 实施例的继电器框架的剖视结构示意图。
图 5为本发明第 实施例的继电器的剖视结构示意图。 图 6为本发明第一实施例的耐电弧片结构示意图。
图 7为本发明耐电弧片另一实施例结构示意图。
图 8为本发明第一实施例的吹弧的作用原理示意图。
图 9为本发明第二实施例的继电器框架的作用原理俯视示意图。
图 10为本发明第二实施例的继电器框架的作用原理俯视示意图。
图 11为本发明第:：种实施例的吹弧的作用原理示意图。
图 12是本发明第 ：实施例的立体构造示意图。
图 13是本发明第 ：实施例的结构剖视图。
图 14是本发明第 ：实施例的框架的立体构造示意图。
图 15是本发明第 ：实施例的框架 （底面翻转向前） 的结构示意图。
图 16是本发明第 ：实施例的引出端部分与第一、 第二灭弧片的配合示意图, 图 17是本发明第 ：实施例的灭弧原理示意图。
图 18是本发明第 ：实施例的灭弧片的作用示意图。
图 19是本发明装配在继电器上的示意图, 具体实施方式
体现本发明特征与优点的典型实施例将在以下的说明中详细叙述。应理解的是本发明 能够在不同的实施例上具有各种的变化， 其皆不脱离本发明的范围， 且其中的说明及图示 在本质上是当作说明之用， 而非用以限制本发明。
本发明中提及的上、 下、 顶、 底等方位， 仅用于说明各部件间的相对位置关系， 并不 限定本发明中各部件具体安装方位。
如图 1至图 3所示， 本发明第一实施例提供一种继电器框架， 包括引出端部分 2、 框 架主体 1、 至少一磁钢 4及至少一耐电弧片 5。 框架主体 1内部形成有镂空部 10， 缕空部 10包括内部的中空部 11和外周的窗口 15， 窗口 15连通框架主体 1的外部和中空部 11 ; 中空部 11容纳继电器的推动机构的动簧部分， 引出端部分 2包括引出端 21和静触点 22; 静触点 22固接在引出端 21的底端， 静触点 22接触面面向中空部 11。
引出端部分 2底部的静触点 22分别与动簧部分 3的动触点 31对应配合 （见图 4) ； 静触点 22和动触点 31能对应接触， 且二者之间形成有一弧隙 A， 各窗口 15可从外侧对 齐弧隙 A (见图 4) 。 这里说的对应接触的触点可以是一组能相互接触的电触点， 也可以 是两组及以上， 每组触点包括一动触点 31及一静触点 22。 触头间电弧燃烧的间隙为弧隙 A， 其可以小于触头间最大间隙。
磁钢 4可安装于框架主体 1的窗口 15， 磁钢 4位于中空部 11外周， 磁钢 4能对中空 部 11内的弧隙 A处， 可对断开接触时产生的电弧进行吹弧。 耐电弧片 5安装于框架主体 1的窗口 15， 耐电弧片 5位于磁钢 4吹弧作用方向上。 在触点为多组时， 对应地框架主体 1的形式并不限制图中所示的形状， 耐电弧片 5和磁钢 4可对应成组增加。 耐电弧片 5位 于磁钢 4 "磁钢吹弧作用方向"是指， 在磁钢 4的磁场作用下， 将弧隙 A处电弧向外周方 向吹弧， 耐电弧片 5能阻挡磁钢 4吹出的电弧， 以进行熄弧降温。 较佳一种方式， 为便于 安装， 也可将陶瓷片 5对称地以中心对齐弧隙 A中心。
在继电器应用于比较高的负载时， 如果电弧打在触点周边的塑料上， 塑料碳化， 绝缘 性会急剧下降。为了避免这一情况，本发明实施例在弧隙 A附近对称地安装耐高温材料的 耐电弧片 5， 比如陶瓷片。 耐电弧材料对电弧有冷却的作用， 可提高产品的可靠性和电寿 命， 且成本低于全陶瓷材质框架， 框架结构更简洁。 这里磁钢 4是一种吹弧装置， 当然也 可以电磁吹弧装置或其它吹弧装置。
具体第一实施例如图 1所示， 框架主体 1整体呈缕空式长方体形， 框架主体 1由塑料 制成， 框架主体 1包括多个柱体 12、 一上安装部 13及一下连接部 14。 各柱体 12间隔地 布置于中空部 11外周， 相邻柱体 12之间形成开放式窗口 15。 上安装部 13在上部连接各 柱体 12， 上安装部 13主体的连接板 133顶部具有凸起的固定部 131， 固定部 131两端外 形呈圆形， 且固定部 131上形成有间隔的两个限位孔 132， 限位孔 132是一个阶梯孔以便 于固定安装继电器的引出端部分 2。 下连接部 14在下部连接各柱体 12， 在本实施例中， 下连接部 14是连接在各柱体 12之间的长条板件， 且下连接部 14为了与磁路系统 6固定 连接设有卡合部 141， 当然也可以是螺接或铆接部。
框架主体 1为缕空式框架，且具有多个从外侧对齐所述弧隙的窗口 15，能在保证结构 强度的前提下， 节省材料， 降低成本。
如图 2所示， 这里的可接触的触点为间隔的两组， 对应具有两个间隔的弧隙 A， 触点 分别包括动触点 31和静触点 22， 静触点 22固定于框架主体 1上部内侧， 动触点 31对应 位于中空部 11内， 动触点 31可受推动机构驱动， 以与静触点 22接触或断开。
如图 1、 图 2、 图 4所示的第一实施例中， 各窗口 15位置从外侧对齐弧隙 A， 两个磁 钢 4分别安装在位于两个弧隙 A间连线向外的延长线上的窗口 15上。 这里所说 "两个弧 隙 A间连线 "可为中心点之间的连线。磁钢 4可内嵌于框架主体中， 不需要额外增加固定 的零件， 无需留固定零件的安装空间， 减小产品的外形尺寸， 且磁钢可以离触点很近， 有 利于提高经过触点间的磁场强度， 从而提高吹弧能力。两对耐电弧片 5分别安装于弧隙外 侧的两窗口 15上， 对应的两耐电弧片 5中心连接垂直于两个弧隙 A间连线。
耐电弧片 5的耐高温材料可为 PET/GF阻燃性耐电弧复合材料、 复合聚四氟乙烯耐电 弧、 耐热耐弧有机硅塑料或陶瓷片， 其中陶瓷片成本低且性能稳定， 因此本发明实施例中 耐电弧片 5为陶瓷片材质。如图 6、 图 7所示， 耐电弧片 5至少一侧沿对应的窗口 15侧边 延伸形成内延部 52， 耐电弧片 5形成 L形直角形状， 因为运行中电弧呈一柱状， 在磁钢 4 磁吹下向一侧呈抛线运动， 直角型陶瓷片可增加防护范围。 如图 7所示， 耐电弧片 5顶面 或底面， 或两侧， 可部分向外延伸形成凸块 51或凹块。
各窗口 15的安装耐电弧片 5的位置上形成有限位筋体 151，限位筋体 151两端连接两 侧柱体 12， 限位筋体 151外形与耐电弧片 5外形相匹配， 如图 1至图 3所示， 限位筋体 151中部呈 U形凹槽， 且限位筋体 151凹槽内与耐电弧片 5边缘接触的面上具有卡接条， 卡接条具有由外到内卡紧耐电弧片 5边缘的斜面。 各窗口 15的安装位置上形成对应的咬 合部。 耐电弧片 5通过卡合或嵌件结合的方式安装于框架主体 1。 同时产品的外壳 7， 会 在外侧顶住耐电弧片 5， 从而将耐电弧片 5的 6个方向均限位住。
耐电弧片 5除了上述固定方式外， 还可与框架主体一体注塑的方式， 以及通过上下滑 槽卡入框架主体等等。
请参照图 8原理图所示，两个磁钢 4分别安装在位于两个弧隙间连线向外的延长线上， 两个磁钢的极性没有特殊要求， 最好是两个磁钢的相对面极性相反。 磁感线方向， 垂直于 触点间产生的电弧方向。 这样在触点间形成电弧后， 两个磁钢 4可分别把电弧吹向两侧， 即使两触点的电流方向换向后， 电弧仍是被吹向侧边。 且即便两个磁钢 4的极性安装有误 时， 电弧仍是被吹向侧边， 仍能保证产品的安全。 本实施例是在框架两边对称设有磁钢， 这样， 在触点间形成电弧后， 两个磁钢可分别向两个侧方向上吹弧， 即使两触点的电流方 向换向后， 磁吹方向仍是指向侧边。 且即便两个磁钢的极性安装有误时， 磁吹方向仍是指 向侧边， 仍能保证产品的安全。
当然， 在第二实施例中， 如图 9至图 11所示， 一对耐电弧片 5也可安装于位于两个 弧隙 A间连线向外的延长线上的窗口 15上， 而磁钢 4安装于弧隙 A外侧的两窗口 15上， 对应的两磁钢中心连接垂直于两个弧隙 A间连线。同样，耐电弧片 5位于磁钢 4吹弧作用 方向上。 此时， 根据电流的流向， 4片磁钢的极性应该由图 11所示的两种方式进行设置， 相对磁钢的相对面极性应该相反， 根据电磁学中的左手定则： 左手平展， 让磁感线穿过手 心， 大拇指与其余四指垂直， 并且都跟掌心在一个平面内。 把左手放入磁场中， 让磁感线 垂直穿入手心，手心面向 N级，四指指向电流所指方向，则大拇指的方向就是受力的方向。 磁场中的电弧产生时， 其受力基于左手定则， 磁钢对电弧的作用力向外。
如图 3至图 5所示， 为上述实施例框架应用于继电器的实施例， 继电器一般还包括引 出端部分 2、动簧部分 3、磁路系统 6、外壳 7和推动机构 8。 引出端部分 2包括引出端 21 和静触点 22; 静触点 22固接在引出端 21 的底端， 例如采用铆接方式进行固定， 静触点 22接触面面向中空部 11。 动触点 31固定安装于动簧部分 3的动簧片 32上， 动簧部分 3 对应位于中空部 11内。推动机构 8受磁路系统 6驱动而带动动簧部分 3运动，推动机构 8 包括推动杆 81和限位弹性件 82、 绝缘套 83等零件， 推动杆 81主体套装在磁路系统 6的 线圈 62内， 一端向外伸出与绝缘套固定， 限位弹性件 82是一弹簧， 动簧部分 3的上端面 贴靠绝缘套 83， 动簧部分 3的下端面由绝缘套 83和限位弹簧 82配合固定。 磁路系统 6 通过推动机构 8带动动簧部分 3运动。使两个引出端部分 2的静触点 22分别与动簧部分 3 的动触点 31对应配合， 完成继电器的通或断。
本发明上述实施例的耐电弧材料对电弧有冷却的作用， 可提高产品的可靠性和电寿 命， 且成本低于全陶瓷材质框架， 框架结构更简洁。
参见图 12至图 19所示， 本发明第三实施例的一种继电器的框架部分， 也包括引出端 部分 2和框架主体 1 ; 引出端部分 2包括引出端 21和静触点 22， 静触点 22固接在引出端 21的底端； 框架主体 1设有用来容纳继电器的推动机构的动簧部分 3的镂空部 10， 两个 引出端部分 2分别装在框架的镂空部 10的顶部，使两个引出端部分的静触点 22分别与动 簧部分 3的动触点 31对应配合。 与第一、 二实施例的区别在于， 在框架主体 1的镂空部 10的两侧窗口 15分别对称设有多个插槽 16， 所述多个插槽 16由上向下分布， 且插槽 16 的两端分别连通所述框架主体 1的外部和所述框架的镂空部 10。
所述多个插槽 16由上向下呈间距分布。
进一步的， 还包括两个第一灭弧片 17和至少两个第二灭弧片 18; 所述两个第一灭弧 片 17分别对称装在框架两侧的最上一层的插槽 16中， 且两个第一灭弧片 17分别靠近或 者贴靠在对应的引出端部分 2上； 所述至少两个第二灭弧片 18分别对称装在框架两侧的 对应的插槽 16中， 并紧接在第一灭弧片 17下， 且第二灭弧片 18的长度尺寸小于第一灭 弧片 17的长度尺寸， 使得第二灭弧片 18与引出端部分之间在平面投影上间隔一段距离； 本实施例中， 第二灭弧片 18为四个， 框架主体 1两侧分别装有两个；
所述第一灭弧片 17和第二灭弧片 18均设有朝向框架里面方向的开口， 即第一灭弧片 17设有朝向框架里面方向的开口 171，第二灭弧片 18也设有朝向框架里面方向的开口（图 中未示出） 。
所述第一灭弧片的开口 171靠近或者贴靠在对应的引出端部分 2上。
所述第一灭弧片 17的开口 171为 Y型， 当然， 也可以是 V型； 第二灭弧片 18的开 口也为 Y型。
所述第一灭弧片的开口 171靠近或者贴靠在对应的引出端部分的静触点 22上。
所述框架的镂空部的顶部还设有用来放置推动机构的返力弹簧的凹槽， 以向推动机构 提供返力。
所述静触点与引出端的底端之间采用铆接方式相固定。
所述框架主体 1的镂空部的顶部还设有用来放置推动机构的返力弹簧的凹槽 19，以向 推动机构提供返力。
所述静触点 22与引出端 21的底端之间采用铆接方式相固定。
本发明第三实施例提供的一种继电器的框架部分， 是在框架两边对称设有多个插槽 16， 所述多个插槽 16由上向下分布， 且插槽 16的两端分别连通所述框架主体 1的外部和 所述框架的镂空部 10， 这样， 就可以根据不同负载来选择是否使用灭弧片， 在负载小的情 况下， 可以不用灭弧片， 而是靠触点间隙来灭弧； 当需要使用灭弧片时， 除了第一灭弧片 17外， 可以根据不同负载来选择使用不同数量的第二灭弧片 18， 以达到最好的灭弧效果; 具有通用性和灵活性。 本实施例在框架两边的最上一层的插槽 16中插装第一灭弧片 17， 且两个第一灭弧片 17分别靠近或者贴靠在对应的引出端部分的触点 12上， 与触点 12形 成等势位， 从而能够起到引弧作用， 避免了现有技术采用永磁体或通过加大触点间隙来灭 弧所带来的弊端； 既可以达到较好的灭弧效果， 又能够避免产品成本上升、 产品体积增大 以及产品动作时间延长的弊端。 本实施例采用在框架两边的第一灭弧片 17下还插装一个 或多个第二灭弧片 18， 来与第一灭弧片 17相配合， 实现灭弧， 一个或多个第二灭弧片呈 间距分布于第一灭弧片 1下方， 从而能将电弧分各成许多短弧 a (如图 17所示） ， 从而灭 弧。本实施例采用在第一灭弧片 17和第二灭弧片 18均设有朝向框架里面方向的开口， 且 第一灭弧片和第二灭弧片的开口均为 Y型 （也可以为 V型） ， 这种结构下， 电弧电流在 周围空间产生的磁路路径发生畸变， 这样就产生一将电弧 b拉向灭弧片的吸力 F (如图 18 所示， 图 18中的 B表示磁通） ， 能够更好地实现引弧和灭弧。 本实施例在框架的镂空部 10的顶部设有用来放置返力弹簧的凹槽 19， 可以向推动机构提供返力， 消除了现有技术 在动铁芯和静铁芯中间设置沉孔来放置返力弹簧所带来的弊端。本实施例采用铆接方式来 固定静触点 22与引出端 21， 可以降低成本和提高效率。 虽然已参照几个典型实施例描述了本发明，但应当理解，所用的术语是说明和示例性、 而非限制性的术语。 由于本发明能够以多种形式具体实施而不脱离发明的精神或实质， 所 以应当理解， 上述实施例不限于任何前述的细节， 而应在随附权利要求所限定的精神和范 围内广泛地解释， 因此落入权利要求或其等效范围内的全部变化和改型都应为随附权利要 求所涵盖。

Claims

141398CN07 WO 2015/000344 PCT/CN2014/078922 权利要求
1、 一种继电器的框架部分， 其特征在于：
所述框架形成有内部的中空部和外周的窗口，所述窗口连通所述框架的外部和所述中 空部； 所述中空部内容置至少一组能对应接触的触点， 所述能对应接触触点之间形成有一 弧隙， 所述窗口从外侧对齐所述弧隙。
2、 根据权利要求 1所述的继电器的框架部分， 其特征在于： 所述框架为一体成型， 所述框架为塑料材质。
3、 根据权利要求 2所述的继电器的框架部分， 其特征在于： 所述能对应接触的触点 为间隔的两组， 每组分别包括动触点和静触点， 所述静触点固定于所述中空部上部， 所述 动触点对应位于所述中空部内。
4、 根据权利要求 3所述的继电器的框架部分， 其特征在于： 所述框架主体包括多个 柱体、 一上安装部及一下连接部， 各柱体间隔地布置于所述中空部外周， 相邻所述柱体之 间形成所述窗口； 所述上安装部在上部连接各柱体； 所述下连接部在下部连接各柱体， 所 述下连接部并与推动机构固定连接。
5、 根据权利要求 1至 4任一项所述的继电器的框架部分， 其特征在于： 在所述框架 两侧对称的所述窗口上， 分别对称设有横向的多个插槽， 所述多个插槽由上向下分布， 且 插槽的两端分别连通所述框架的外部和所述中空部。
6、 根据权利要求 5所述的继电器的框架部分， 其特征在于： 所述多个插槽由上向下 呈间距分布。
7、 根据权利要求 6所述的继电器的框架部分， 其特征在于： 进一步的， 还包括两个 第一灭弧片和至少两个第二灭弧片；所述两个第一灭弧片分别对称装在框架两侧的最上一 层的插槽中， 且两个第一灭弧片分别靠近或者贴靠在对应的所述能对应接触的触点； 所述 至少两个第二灭弧片分别对称装在框架两侧的对应的插槽中， 并紧接在第一灭弧片下， 且 第二灭弧片的长度尺寸小于第一灭弧片的长度尺寸，使得第二灭弧片与能对应接触的触点 之间在平面投影上间隔一段距离。
8、 根据权利要求 7所述的继电器的框架部分， 其特征在于： 所述第一灭弧片和第二 灭弧片均设有朝向框架内侧的开口，所述第一灭弧片的开口靠近或者贴靠在对应的所述弧 隙上。
9、 根据权利要求 8所述的继电器的框架部分， 其特征在于： 所述第一灭弧片和第二 灭弧片的开口均为 Y型。
10、 根据权利要求 1至 4任一项所述的继电器的框架部分， 其特征在于： 还具有至少 一磁钢及至少一耐电弧片； 所述磁钢安装于所述窗口上， 所述磁钢位于所述弧隙的外周， 所述磁钢能对所述弧隙处产生的电弧进行吹弧； 所述耐电弧片安装于所述窗口上， 所述耐 电弧片位于所述磁钢吹弧作用方向上。
11、 根据权利要求 10所述的继电器的框架部分， 其特征在于： 在所述磁钢的磁场作 用下， 所述磁钢向所述继电器或接触器框架外侧吹弧。
12、 根据权利要求 11所述的继电器的框架部分， 其特征在于： 所述耐电弧片为陶瓷 片。
13、 根据权利要求 12所述的继电器的框架部分， 其特征在于： 所述磁钢成对设置， 相对的所述磁钢的相对面极性相反。
14、 根据权利要求 12所述的继电器的框架部分， 其特征在于： 所述耐电弧片成对设 置， 所述耐电弧片对称地以中心对齐所述弧隙中心。
15、 根据权利要求 13所述的继电器的框架部分， 其特征在于： 包括两组并排的触点， 具有两个间隔的所述弧隙； 所述磁钢分别位于两个弧隙间连线向外的延长线上； 至少两对 所述耐电弧片分别安装于所述弧隙外侧，对应地所述耐电弧片中心连接垂直于两个弧隙间 连线。
16、 根据权利要求 13所述的继电器的框架部分， 其特征在于： 包括两组并排的触点， 具有两个间隔的所述弧隙；所述耐电弧片安装于位于两个弧隙间连线向外的延长线上的所 述窗口上； 所述磁钢安装于所述弧隙外侧的所述窗口上， 对应的所述磁钢中心连接垂直于 两个弧隙间连线。
17、 根据权利要求 15所述的继电器的框架部分， 其特征在于： 所述耐电弧片至少一 侧沿对应的所述窗口侧边延伸一定距离。
18、 根据权利要求 17所述的继电器的框架部分， 其特征在于： 所述耐电弧片周边向 外形成凸块或凹块， 所述框架主体的安装位置上形成对应的咬合部。
19、 根据权利要求 15所述的继电器的框架部分， 其特征在于： 所述耐电弧片通过卡 合或嵌件结合的方式安装于所述框架主体。
20、 根据权利要求 18所述的继电器的框架部分， 其特征在于： 所述框架主体的安装 位置上形成有限位筋体， 所述限位筋体外形与所述耐电弧片外形相匹配， 且所述限位筋体 与所述耐电弧片边缘接触的面上具有卡接条，所述卡接条具有由外到内卡紧所述耐电弧片 边缘的斜面。
21、 根据权利要求 1至 4任一项所述的继电器的框架部分， 其特征在于： 还包括引出 端部分， 所述引出端部分包括引出端和静触点， 所述静触点固接在引出端的底端； 所述引 出端部分分别装在所述中空部的顶部，所述引出端部分的静触点分别与所述动簧部分的动 触点对应配合。
22、 一种继电器， 包括引出端部分、 动簧部分、 磁路部分、 推动机构及如权利要求 1 至 21任一项所述的框架部分， 其中， 所述磁路部分连接于所述框架部分一侧， 所述磁路 部分通过推动机构带动所述动簧部分上的动触点运作。
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