WO2018113116A1 - 接触器 - Google Patents

接触器 Download PDF

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Publication number
WO2018113116A1
WO2018113116A1 PCT/CN2017/077991 CN2017077991W WO2018113116A1 WO 2018113116 A1 WO2018113116 A1 WO 2018113116A1 CN 2017077991 W CN2017077991 W CN 2017077991W WO 2018113116 A1 WO2018113116 A1 WO 2018113116A1
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WO
WIPO (PCT)
Prior art keywords
plate
limiting plate
limiting
contact support
root portion
Prior art date
Application number
PCT/CN2017/077991
Other languages
English (en)
French (fr)
Inventor
卢晶
郑乾俊
肖体锋
Original Assignee
浙江正泰电器股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 浙江正泰电器股份有限公司 filed Critical 浙江正泰电器股份有限公司
Priority to EP17884822.2A priority Critical patent/EP3561848B1/en
Priority to ES17884822T priority patent/ES2954972T3/es
Publication of WO2018113116A1 publication Critical patent/WO2018113116A1/zh

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    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H71/0214—Housing or casing lateral walls containing guiding grooves or special mounting facilities
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/026—Details concerning isolation between driving and switching circuit

Definitions

  • the invention relates to the field of low-voltage electrical appliances, and in particular to a contactor.
  • the contact support of the contactor is movably mounted in the body, and at least one accommodating cavity is generally formed on the contact support member, and the movable contact is mounted in the accommodating cavity, one end of the spring is mounted on the movable contact, and the other end is mounted on the movable contact. Place the top of the cavity.
  • the static contact is fixedly mounted on the body opposite to the movable contact. When the contactor is in operation, the working circuit is turned on or off by moving the movable contact up and down and the static contact to open or close.
  • the contact support moves under the attraction of the energized coil, so that the movable contact and the static contact open or close, and an arc is generated at the moment of opening or closing, in order to effectively block the phase arc
  • the contactor is in the contact support and the body two phases
  • the greater the current voltage, the stronger the arc, and the strong arc impact may lead to two phases.
  • Short circuit usually the contactor will increase the space in the horizontal or vertical direction, increase the interphase clearance and creepage distance to avoid arc short circuit.
  • this method will inevitably increase the product volume, especially when it is necessary to add some auxiliary functions, which does not meet the development trend of miniaturization and diversification of low-voltage electrical appliances.
  • the object of the present invention is to overcome the deficiencies of the prior art and to provide a contactor with a simple structure and good arc-suppression effect.
  • a contactor includes a body 1 and a contact support 2, the contact support 2 is movably mounted in a mounting cavity 10 of the body 1, and the body 20 of the contact support 2 is provided with a plurality of lower receiving cavities 22, a movable contact for accommodating the contactor, the plurality of lower accommodating cavities 22 are spaced apart from each other, and the side wall of the body 20 is provided with a plurality of limiting structures between the adjacent two lower accommodating cavities 22 The plurality of limiting structures cooperate with the plurality of plug-in boards 12 in the mounting cavity 10;
  • the inserting plate 12 includes a connecting connecting end portion 121 and a bent root portion.
  • the bent root portion of the inserting plate 12 is connected to the side wall of the mounting cavity 10 of the body casing 1.
  • Each of the limiting structures of the contact support 2 includes adjacent
  • the first limiting plate 25 and the second limiting plate 26 are respectively formed on the side walls of the two lower receiving chambers 22, and the first limiting plate 25 includes a connecting connecting root portion 251 and a bent end portion, first
  • the connecting root portion 251 of the limiting plate 25 is connected to the body 20 and spaced apart from the second limiting plate 26 to form a slot 27 for engaging with the connecting end portion 121 of the inserting plate 12, and the bent end of the first limiting plate 25
  • the portion is disposed opposite to the bent root portion of the interposer 12.
  • the bent end portion of the first limiting plate 25 includes a first inflection section 252 and a first straight line segment 253, and the first straight line segment 253 is disposed in parallel with the connecting root portion 251, and the first inflection section 252 is disposed. Then, the oblique connection is between the first straight line segment 253 and the connecting root portion 251; the bent root portion of the inserting plate 12 includes a second inflection portion 122 corresponding to the first inflection portion 252, and is disposed corresponding to the first straight line segment 253.
  • the second straight line segment 123 is disposed in parallel with the connecting end portion 121 in parallel, and the second inflection portion 122 is obliquely connected between the second straight line segment 123 and the connecting end portion 121.
  • the connecting root portion 251 of the first limiting plate 25 is disposed in parallel with the connecting end portion 121 of the inserting plate 12, and the first inflection segment 252 and the second inflection segment 122 are disposed in parallel with each other.
  • the first straight line segment 253 and the second straight line segment 123 are arranged in parallel offset.
  • the connecting root portion 251 and the second limiting plate 26 of the first limiting plate 25 are of a flat plate structure, and the connecting root portion 251 of the first limiting plate 25 has a length equal to the length of the second limiting plate 26.
  • the length of the first limiting plate 25 is greater than the length of the second limiting plate 26, and the bent end of the first limiting plate 25 protrudes from the second limiting plate 26 and faces the second limit.
  • the bit plate 26 is bent.
  • the bottom end of the body 20 of the contact support 2 is provided with a bottom plate 21, the body 20 is vertically connected to the middle of the top surface of the bottom plate 21, and the plurality of limiting structures are connected to the top surface of the bottom plate 21 and the body
  • the side walls of the two sides are symmetrically distributed on both sides of the body 20, and the plurality of inserting plates 12, which are matched with the plurality of limiting structures, are also symmetrically disposed on both sides of the mounting cavity 10, and the inserting plates on both sides Between 12, a movable hole 11 for the movement of the body 20 is formed, which is matched to the size of the mounting cavity 10 and can be blocked by the inserting plate 12 during operation.
  • the two sides of the body 20 of the contact support 2 protrude from the bottom plate 21 to form two sliding protrusions 201 on both sides, and the inner side wall of the body 1 is provided on both sides of the movable hole 11
  • the two chutes 13 cooperate with the two sliding protrusions 201.
  • the side wall of the chute 13 protrudes from the inner side wall of the body 1 and each sliding protrusion
  • Two limiting blocks 211 are disposed on the sides of the bottom plate 21 on both sides of the bottom plate 21, and the gap between the limiting block 211 and the sliding protrusion 201 cooperates with the sidewall of the sliding slot 13.
  • the number of the lower receiving chambers 22 is three, and the number of the limiting structures is four; the three lower receiving chambers 22 are arranged side by side of the body 20 of the contact holder 2, and A cavity 23 is formed between the rows of three lower receiving chambers 22 and the other side of the body 20.
  • a partition 28 is provided between the cavity 23 and its adjacent lower receiving chamber 22, and the body 1 is provided with a baffle 14 that cooperates with the partition 28.
  • the contactor of the invention forms a laminated structure by matching the limiting structure on the contact support with the inserting plate on the body shell, thereby functioning to block the arc, and the first limiting plate and the inserting plate are provided with matching folds.
  • the curved portion, the first limiting plate and the inserting plate segment bending space conversion can realize the increase of the electrical gap and the creepage distance between the two-phase live parts of the contactor without further expanding the space of the contactor, thereby further effectively blocking the arc
  • Improve product space utilization simple structure, not only improve the arc-proof effect, effectively avoid the situation of arc short-circuit, but also reduce the product volume as much as possible or provide more space for the functional modules of the product, which can accommodate more auxiliary function modules.
  • Such as auxiliary contacts, surge suppression modules, etc. to achieve the purpose of product miniaturization, functional diversification, in line with the development trend of low-voltage electrical appliances.
  • Figure 1 is an assembled view of the contactor body and contact support of the present invention
  • Figure 2 is an assembled view of the inverted body and contact support of the present invention
  • Figure 3 is an exploded view of the inverted body and contact support of the present invention.
  • Figure 4 is a plan view of the body of the present invention.
  • Figure 5 is a perspective view of the contact support of the present invention.
  • Figure 6 is a plan view of the contact support of the present invention.
  • Figure 7 is a front elevational view of the contact support of the present invention.
  • the contactor of the present invention includes a body 1 and a contact support 2, the contact support 2 movable in the mounting cavity 10 of the body 1 , the body 20 of the contact support 2 is provided with a plurality of independent lower receiving cavities 22 for accommodating the movable contacts of the contactor, and acting on the energizing coil of the contactor
  • the contact support 2 action drives the movable contact on the movable contact and the fixed contact fixedly mounted on the body 1 to open or close, so that the working circuit of the contactor is disconnected or turned on; between the plurality of lower receiving chambers 22
  • a plurality of limiting structures between the adjacent two lower receiving cavities 22 are disposed on the sidewall of the body 20, and the plurality of limiting structures are opposite to the plurality of interposers 12 in the mounting cavity 10.
  • the insert 12 includes a connected connecting end portion 121 and a bent root portion, and the bent root portion of the inserting plate 12 is coupled to the side wall of the mounting cavity 10 of the body casing 1 for each limit of the contact support 2
  • the bit structure includes a first limiting plate 25 and a second limiting plate 26 respectively extending from sidewalls of two adjacent lower receiving cavities 22, the first limiting plate 25 including the connecting connecting root portion 251 and the bending
  • the connecting root portion 251 of the first limiting plate 25 is connected to the body 20 and spaced apart from the second limiting plate 26 to form a
  • the socket 27 of the insertion plate 121 of the insertion plate 12 is engaged with the slot 27, and the bent end portion of the first limiting plate 25 is disposed opposite to the bent root portion of the insertion plate 12.
  • the connecting end portion 121 of the inserting plate 12 is inserted into the slot 27 between the first limiting plate 25 and the second limiting plate 26, and the bent root portion of the inserting plate 12 is folded from the first limiting plate 25.
  • the curved ends are opposite.
  • the limiting structure on the contact support is matched with the inserting plate on the body to form a laminated structure, which functions to block the arc, and the first limiting plate and the inserting plate are provided with matching bending portions, the first limit
  • the bit plate and the inserting plate are flexed and space-converted, so that the gap between the two-phase live parts of the contactor and the creepage distance can be increased without additionally expanding the space of the contactor, thereby further effectively blocking the arc and improving the space utilization of the product.
  • the utility model has the advantages of simple structure, not only improving the arc-dissipating effect, effectively avoiding the situation of avoiding the arc short circuit, but also reducing the product volume as much as possible or providing more space for the functional modules of the product, and realizing more auxiliary function modules such as auxiliary contacts and waves.
  • Surge suppression module, etc. to achieve the purpose of product miniaturization and diversification of functions, in line with the development trend of low-voltage electrical appliances.
  • the bent end portion of the first limiting plate 25 includes a first inflection section 252 and a first straight line segment 253.
  • the first straight line segment 253 is disposed in parallel with the connecting root portion 251, and the first inflection section 252 is disposed.
  • the oblique connection is between the first straight line segment 253 and the connecting root portion 251;
  • the bent root portion of the inserting plate 12 includes a second inflection portion 122 corresponding to the first inflection portion 252, and is disposed corresponding to the first straight line segment 253.
  • the second straight line segment 123 is disposed in parallel with the connecting end portion 121 in parallel, and the second inflection portion 122 is obliquely connected between the second straight line segment 123 and the connecting end portion 121.
  • the multi-section bending structure matched with the first limiting plate and the inserting plate is simple, compact and orderly, effectively increasing the electrical clearance and creepage distance of the two phases of the product, and achieving a good arc breaking effect.
  • connection of the first limiting plate 25 The root portion 251 is disposed in parallel with the connecting end portion 121 of the inserting plate 12, and the first inflection portion 252 and the second inflection portion 122 are disposed in parallel with each other.
  • the first straight line segment 253 and the second straight line segment 123 are disposed. Parallel misalignment setting.
  • the first limiting plate and the parts of the inserting plate are relatively offset, which further increases the creepage distance of the product.
  • the connecting root portion 251 and the second limiting plate 26 of the first limiting plate 25 are parallel plate structures, and the length of the connecting root portion 251 of the first limiting plate 25 and the length of the second limiting plate 26
  • the ends of the second limiting plate 26 facing the side of the inserting plate 12 are provided with inclined faces which are parallel to the second inflection segments 122.
  • the length of the first limiting plate 25 is greater than the length of the second limiting plate 26, and the bent end of the first limiting plate 25 protrudes from the second limiting plate 26 and faces the second limit. The plate 26 is bent. More compact, better arc blocking effect.
  • the contact support of the present invention and the movable mounting structure of the body As shown in FIG. 2 and FIG. 3, the contact support of the present invention and the movable mounting structure of the body, the bottom end of the body 20 of the contact support 2 is provided with a bottom plate 21 for mounting a contactor armature, and a bottom surface of the bottom plate 21 There are two limiting bosses 212 spaced apart from each other, and the gap between the two limiting bosses 212 cooperates with the armature of the contactor; each of the limiting bosses 212 is provided with a recess 213.
  • the body 20 is vertically connected to the middle of the top surface of the bottom plate 21, and the plurality of limiting structures are connected to the two sides of the body 20 in a centrally symmetric manner between the top surface of the bottom plate 21 and the side wall of the body 20.
  • the plurality of inserting plates 12, which are matched with the plurality of limiting structures, are also disposed symmetrically on the inner sides of the mounting cavity 10, and the movable holes 11 for the movement of the body 20 are formed between the inserting plates 12 on the two sides, and the bottom plate 21 is formed. Matching the size of the mounting cavity 10, it can be blocked by the card 12 during operation.
  • the first straight section 253 of the first limiting plate 25 extends to be flush with the edge of the bottom plate 21.
  • the two sides of the body 20 of the contact support 2 protrude from the bottom plate 21 to form two sliding protrusions 201 on both sides, and the inner side wall of the body 1 is provided on both sides of the movable hole 11
  • Two sliding slots 13 cooperate with the two sliding projections 201.
  • the cooperation of the sliding protrusion and the sliding slot plays a role of guiding and limiting the contact supporting action, thereby improving reliability.
  • the side wall of the sliding slot 13 protrudes from the inner side wall of the body 1 , and two limiting blocks 211 are disposed on the sides of the bottom plate 21 on both sides of the sliding protrusion 201 .
  • the limiting block 211 The gap with the sliding protrusion 201 cooperates with the side wall of the sliding groove 13. Play a further defining role.
  • the body 20 of the contact support 2 is mounted in the movable hole 11, and the sliding protrusion 201 is locked in the sliding slot 13 and has a sliding gap.
  • the two side walls of the sliding slot 13 are correspondingly limited to the sliding protrusion 201 and Between the two limit blocks 211 on both sides.
  • the number of the lower receiving chambers 22 is three, and the number of the limiting structures is four, and the four limiting structures are centered. Symmetrically disposed on both sides of the body 20 of the contact support 2, two limiting structures on the same side of the body 20 are respectively located in two gaps of the three lower receiving chambers 22; the three lower receiving chambers 22 are supported by the contacts.
  • the body 20 of the 2 is arranged side by side, and a cavity 23 is formed between the three lower receiving chambers 22 and the other side of the body 20; the body 20 of the contact holder 2 is further provided with four independent
  • the upper receiving chamber 24 is for accommodating the movable contact of the contactor, and the four upper receiving chambers 24 are arranged in a row above the three lower receiving chambers 22 in a row, wherein the three upper receiving chambers 24 and the three lower receiving chambers
  • the cavity 22 is correspondingly disposed, and the lower portion of the upper receiving cavity 24 is disposed as the cavity 23.
  • the traditional contact support the three lower receiving chambers are evenly arranged on the contact supporting body, completely occupying the lateral direction of the body to ensure the electrical gap between the two phases; in the case of the same size as the conventional contact support, the present invention
  • the contact support is matched with the inserting plate with the bending and the bending of the body to ensure the clearance and the creepage distance between the two phases, and the three lower receiving chambers can be arranged in the lateral direction of the body. Therefore, a cavity can be accommodated for other functional modules to improve product space utilization.
  • a partition 28 is provided between the cavity 23 and its adjacent lower receiving chamber 22, and the body 1 is provided with a baffle 14 that cooperates with the partition 28.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Buckles (AREA)
  • Slide Switches (AREA)

Abstract

一种接触器，包括躯壳（1）和触头支持（2），触头支持活动安装在躯壳的安装腔（10）内，触头支持的本体（20）上设有多个下容纳腔（22），用于容纳动触头，多个下容纳腔之间相间隔设置，且本体的侧壁上设有位于相邻两个下容纳腔之间的多个限位结构，多个限位结构与安装腔内的多个插板（12）相配合；插板包括相连接的连接端部（121）和折弯根部，插板的折弯根部连接在安装腔的侧壁上，每个限位结构包括相邻两个下容纳腔的侧壁分别延伸形成的第一限位板（25）和第二限位板（26），第一限位板包括相连接的连接根部（251）和折弯端部，连接根部连接在本体上与第二限位板相间隔，以形成与插板的连接端部配合的插槽（27），折弯端部与插板的折弯根部相对设置。该接触器结构简单、隔弧效果好。

Description

接触器 技术领域
本发明涉及低压电器领域，具体涉及一种接触器。
背景技术
接触器的触头支撑件活动安装在躯壳中，通常在触头支撑件上形成至少一个容置腔，容置腔中安装动触头，弹簧一端安装在动触头上，另一端安装在容置腔的顶部。静触头固定安装在躯壳上，与动触头相对。接触器在工作时，通过动触头上下移动与静触头打开或闭合，使得工作电路接通或分断。
触头支撑件在通电线圈吸引作用下运动，使得动触头与静触头打开或闭合，在打开或闭合瞬间产生电弧，为有效隔断相间电弧，通常接触器在触头支撑件及躯壳两相之间设置有隔离绝缘件，而通过触头两端电流的大小及施加在触头两端的电压的大小决定了电弧的强度，电流电压越大电弧越强，强大的电弧冲击极可能导致两相短路；通常接触器都会在横向或纵向增加空间，加大相间电气间隙及爬电距离，以避免电弧短路。但这种方式势必会增加产品体积，特别是在需要增加一些辅助功能时，不符合低压电器体积小型化、功能多样化的发展趋势。
发明内容
本发明的目的在于克服现有技术的缺陷，提供一种结构简单、隔弧效果好的接触器。
为实现上述目的，本发明采用了如下技术方案：
一种接触器，包括躯壳1和触头支持2，所述触头支持2活动安装在躯壳1的安装腔10内，所述触头支持2的本体20上设有多个下容纳腔22，用于容纳接触器的动触头，所述多个下容纳腔22之间相间隔设置，且本体20的侧壁上设有位于相邻两个下容纳腔22之间的多个限位结构，所述多个限位结构与安装腔10内的多个插板12相配合；
所述插板12包括相连接的连接端部121和折弯根部，插板12的折弯根部连接在躯壳1的安装腔10侧壁上，触头支持2的每个限位结构包括相邻两个下容纳腔22的侧壁分别延伸形成的第一限位板25和第二限位板26，所述第一限位板25包括相连接的连接根部251和折弯端部，第一限位板25的连接根部251连接在本体20上与第二限位板26相间隔，以形成与插板12的连接端部121配合的插槽27，第一限位板25的折弯端部与插板12的折弯根部相对设置。
优选地，所述第一限位板25的折弯端部包括第一转折段252和第一直线段253，所述第一直线段253与连接根部251平行错层设置，第一转折段252则倾斜连接在第一直线段253与连接根部251之间；所述插板12的折弯根部包括与第一转折段252对应设置的第二转折段122、以及与第一直线段253对应设置的第二直线段123，所述第二直线段123与连接端部121平行错层设置，第二转折段122则倾斜连接在第二直线段123与连接端部121之间。
优选地，所述第一限位板25的连接根部251与插板12的连接端部121之间平行错位设置，所述第一转折段252与第二转折段122之间平行错位设置，所述第一直线段253与第二直线段123之间平行错位设置。
优选地，所述第一限位板25的连接根部251和第二限位板26为平直板结构，并且第一限位板25的连接根部251长度与第二限位板26的长度相等。
优选地，所述第一限位板25的长度大于第二限位板26的长度，所述第一限位板25的折弯端部凸出于第二限位板26并朝向第二限位板26弯折。
优选地，所述触头支持2的本体20底端设有底板21，所述本体20垂直连接在底板21的顶面中部上，所述多个限位结构连接在底板21的顶面与本体20的侧壁之间呈中心对称分布在本体20的两侧，所述与多个限位结构配合的多个插板12也呈中心对称设置在安装腔10内两侧，两侧的插板12之间则形成用于本体20活动的活动孔11，所述底板21与安装腔10的大小相匹配，动作时能够被插板12所阻挡。
优选地，所述触头支持2的本体20两侧凸出于底板21以形成位于两侧的两个滑动凸起201，所述躯壳1的内侧壁上设有位于所述活动孔11两侧的两个滑槽13，与两个滑动凸起201相配合。
优选地，所述滑槽13的侧壁凸出于躯壳1的内侧壁，并且，每个滑动凸起 201的两侧设有位于底板21侧边上的两个限位块211，所述限位块211与滑动凸起201之间的间隙与滑槽13的侧壁相配合。
优选地，所述下容纳腔22的数量为三个，所述限位结构的数量则为四个；所述三个下容纳腔22靠触头支持2的本体20一侧排列设置，并且，成排的三个下容纳腔22与本体20的另一侧之间形成空腔23。
优选地，所述空腔23与其邻近的下容纳腔22之间设有隔板28，所述躯壳1设有与隔板28相配合的挡板14。
本发明的接触器，通过触头支持上的限位结构与躯壳上的插板相配合设置形成层叠结构，起到隔断电弧的作用，同时第一限位板与插板设有相配合的折弯部，第一限位板与插板分段折弯式空间转换，无需额外扩大接触器的空间即可实现增加接触器两相带电部件之间的电气间隙及爬电距离，进一步有效隔断电弧，提高产品空间利用率；结构简单，既提高隔弧效果，有效发生避免电弧短路的情况，又尽可能地减少产品体积或为产品的功能模块提供更多空间，可实现容纳更多辅助功能模块如辅助触头、浪涌抑制模块等，达到产品小型化、功能多样化的目的，符合低压电器的发展趋势。
附图说明
图1是本发明的接触器躯壳和触头支持的装配图；
图2是本发明的倒置的躯壳和触头支持的装配图；
图3是本发明的倒置的躯壳和触头支持的分解图；
图4是本发明的躯壳的俯视图；
图5是本发明的触头支持的立体图；
图6是本发明的触头支持的俯视图；
图7是本发明的触头支持的正视图。
具体实施方式
以下结合附图1至7给出的实施例，进一步说明本发明的接触器的具体实施方式。本发明的接触器不限于以下实施例的描述。
如图1-7所示，本发明的接触器，包括躯壳1和触头支持2，所述触头支持 2活动安装在躯壳1的安装腔10内，所述触头支持2的本体20上设有多个独立的下容纳腔22，用于容纳接触器的动触头，在接触器的通电线圈作用下，触头支持2动作带动其上的动触头与固定安装在躯壳1上的静触头打开或闭合，实现接触器的工作电路分断或接通；所述多个下容纳腔22之间相间隔设置，且本体20的侧壁上设有位于相邻两个下容纳腔22之间的多个限位结构，所述多个限位结构与安装腔10内的多个插板12相配合；特别的，所述插板12包括相连接的连接端部121和折弯根部，插板12的折弯根部连接在躯壳1的安装腔10侧壁上，触头支持2的每个限位结构包括相邻两个下容纳腔22的侧壁分别延伸形成的第一限位板25和第二限位板26，所述第一限位板25包括相连接的连接根部251和折弯端部，第一限位板25的连接根部251连接在本体20上与第二限位板26相间隔，以形成与插板12的连接端部121配合的插槽27，第一限位板25的折弯端部与插板12的折弯根部相对设置。安装时，插板12的连接端部121插入第一限位板25与第二限位板26之间的插槽27内，插板12的折弯根部则与第一限位板25的折弯端部相对。通过触头支持上的限位结构与躯壳上的插板相配合设置形成层叠结构，起到隔断电弧的作用，同时第一限位板与插板设有相配合的折弯部，第一限位板与插板分段折弯式空间转换，无需额外扩大接触器的空间即可实现增加接触器两相带电部件之间的电气间隙及爬电距离，进一步有效隔断电弧，提高产品空间利用率；结构简单，既提高隔弧效果，有效发生避免电弧短路的情况，又尽可能地减少产品体积或为产品的功能模块提供更多空间，可实现容纳更多辅助功能模块如辅助触头、浪涌抑制模块等，达到产品小型化、功能多样化的目的，符合低压电器的发展趋势。
具体地，所述第一限位板25的折弯端部包括第一转折段252和第一直线段253，所述第一直线段253与连接根部251平行错层设置，第一转折段252则倾斜连接在第一直线段253与连接根部251之间；所述插板12的折弯根部包括与第一转折段252对应设置的第二转折段122、以及与第一直线段253对应设置的第二直线段123，所述第二直线段123与连接端部121平行错层设置，第二转折段122则倾斜连接在第二直线段123与连接端部121之间。第一限位板与插板相配合的多段式折弯结构，简单、紧凑有序，有效增加了产品两相的电气间隙和爬电距离，达到良好的隔断电弧效果。进一步地，所述第一限位板25的连接 根部251与插板12的连接端部121之间平行错位设置，所述第一转折段252与第二转折段122之间平行错位设置，所述第一直线段253与第二直线段123之间平行错位设置。第一限位板与插板的各部位相对错位设置，进一步增加产品的爬电距离。
此外，所述第一限位板25的连接根部251和第二限位板26为相互平行的平直板结构，并且第一限位板25的连接根部251长度与第二限位板26的长度相等；第二限位板26面向插板12一侧的端部设有与第二转折段122平行错位的斜面。而且，所述第一限位板25的长度大于第二限位板26的长度，所述第一限位板25的折弯端部凸出于第二限位板26并朝向第二限位板26弯折。更加紧凑，隔断电弧效果更佳。
如图2和图3所示，本发明的触头支持与躯壳的活动安装结构，所述触头支持2的本体20底端设有用于安装接触器衔铁的底板21，所述底板21的底面上设有相间隔的两个限位凸台212，两个限位凸台212之间的间隙与接触器的衔铁相配合；每个限位凸台212上设有凹槽213。所述本体20垂直连接在底板21的顶面中部上，所述多个限位结构连接在底板21的顶面与本体20的侧壁之间呈中心对称分布在本体20的两侧，所述与多个限位结构配合的多个插板12也呈中心对称设置在安装腔10内两侧，两侧的插板12之间则形成用于本体20活动的活动孔11，所述底板21与安装腔10的大小相匹配，动作时能够被插板12所阻挡。第一限位板25的第一直线段253延伸至与底板21的边缘平齐。触头支持与躯壳的活动安装结构简单，便于触头支持的动作。
此外，所述触头支持2的本体20两侧凸出于底板21以形成位于两侧的两个滑动凸起201，所述躯壳1的内侧壁上设有位于所述活动孔11两侧的两个滑槽13，与两个滑动凸起201相配合。滑动凸起和滑槽的配合，对触头支持动作起到导向和限位的作用，提高可靠性。所述滑槽13的侧壁凸出于躯壳1的内侧壁，并且，每个滑动凸起201的两侧设有位于底板21侧边上的两个限位块211，所述限位块211与滑动凸起201之间的间隙与滑槽13的侧壁相配合。起到进一步限定的作用。安装时，触头支持2的本体20安装在活动孔11内，滑动凸起201卡装在滑槽13内，具有滑动间隙，滑槽13的两侧壁则相应限位在滑动凸起201与两侧的两个限位块211之间。
如图5-7所示，本发明的触头支持的具体实施例，所述下容纳腔22的数量为三个，所述限位结构的数量则为四个，四个限位结构呈中心对称设置在触头支持2的本体20两侧，位于本体20同一侧的两个限位结构分别位于三个下容纳腔22的两个间隙内；所述三个下容纳腔22靠触头支持2的本体20一侧排列设置，并且，成排的三个下容纳腔22与本体20的另一侧之间形成空腔23；所述触头支持2的本体20上还设有四个独立的上容纳腔24，用于容纳接触器的动触头，四个上容纳腔24成排设置在成排的三个下容纳腔22的上方，其中三个上容纳腔24与三个下容纳腔22对应设置，另一个上容纳腔24的下方则设置成所述空腔23。传统的触头支持，三个下容纳腔均匀排布在触头支持本体上，完全占据本体的横向上，以保障两相间的电气间隙；与传统触头支持同尺寸的情况下，本发明的触头支持，基于设有折弯的限位结构与躯壳折弯的插板配合，保障了两相间的电气间隙和爬电距离，可将三个下容纳腔与本体的横向上相错位排布，从而留有可容纳其它功能模块的空腔，提高产品空间利用率。而且，所述空腔23与其邻近的下容纳腔22之间设有隔板28，所述躯壳1设有与隔板28相配合的挡板14。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本发明的保护范围。

Claims (10)

  1. 一种接触器，包括躯壳(1)和触头支持(2)，其特征在于：所述触头支持(2)活动安装在躯壳(1)的安装腔(10)内，所述触头支持(2)的本体(20)上设有多个下容纳腔(22)，用于容纳接触器的动触头，所述多个下容纳腔(22)之间相间隔设置，且本体(20)的侧壁上设有位于相邻两个下容纳腔(22)之间的多个限位结构，所述多个限位结构与安装腔(10)内的多个插板(12)相配合；
    所述插板(12)包括相连接的连接端部(121)和折弯根部，插板(12)的折弯根部连接在躯壳(1)的安装腔(10)侧壁上，触头支持(2)的每个限位结构包括相邻两个下容纳腔(22)的侧壁分别延伸形成的第一限位板(25)和第二限位板(26)，所述第一限位板(25)包括相连接的连接根部(251)和折弯端部，第一限位板(25)的连接根部(251)连接在本体(20)上与第二限位板(26)相间隔，以形成与插板(12)的连接端部(121)配合的插槽(27)，第一限位板(25)的折弯端部与插板(12)的折弯根部相对设置。
  2. 根据权利要求1所述的接触器，其特征在于：所述第一限位板(25)的折弯端部包括第一转折段(252)和第一直线段(253)，所述第一直线段(253)与连接根部(251)平行错层设置，第一转折段(252)则倾斜连接在第一直线段(253)与连接根部(251)之间；所述插板(12)的折弯根部包括与第一转折段(252)对应设置的第二转折段(122)、以及与第一直线段(253)对应设置的第二直线段(123)，所述第二直线段(123)与连接端部(121)平行错层设置，第二转折段(122)则倾斜连接在第二直线段(123)与连接端部(121)之间。
  3. 根据权利要求2所述的接触器，其特征在于：所述第一限位板(25)的连接根部(251)与插板(12)的连接端部(121)之间平行错位设置，所述第一转折段(252)与第二转折段(122)之间平行错位设置，所述第一直线段(253)与第二直线段(123)之间平行错位设置。
  4. 根据权利要求1所述的接触器，其特征在于：所述第一限位板(25)的连接根部(251)和第二限位板(26)为平直板结构，并且第一限位板(25)的 连接根部(251)长度与第二限位板(26)的长度相等。
  5. 根据权利要求1-4任一所述的接触器，其特征在于：所述第一限位板(25)的长度大于第二限位板(26)的长度，所述第一限位板(25)的折弯端部凸出于第二限位板(26)并朝向第二限位板(26)弯折。
  6. 根据权利要求1所述的接触器，其特征在于：所述触头支持(2)的本体(20)底端设有底板(21)，所述本体(20)垂直连接在底板(21)的顶面中部上，所述多个限位结构连接在底板(21)的顶面与本体(20)的侧壁之间呈中心对称分布在本体(20)的两侧，所述与多个限位结构配合的多个插板(12)也呈中心对称设置在安装腔(10)内两侧，两侧的插板(12)之间则形成用于本体(20)活动的活动孔(11)，所述底板(21)与安装腔(10)的大小相匹配，动作时能够被插板(12)所阻挡。
  7. 根据权利要求6所述的接触器，其特征在于：所述触头支持(2)的本体(20)两侧凸出于底板(21)以形成位于两侧的两个滑动凸起(201)，所述躯壳(1)的内侧壁上设有位于所述活动孔(11)两侧的两个滑槽(13)，与两个滑动凸起(201)相配合。
  8. 根据权利要求7所述的接触器，其特征在于：所述滑槽(13)的侧壁凸出于躯壳(1)的内侧壁，并且，每个滑动凸起(201)的两侧设有位于底板(21)侧边上的两个限位块(211)，所述限位块(211)与滑动凸起(201)之间的间隙与滑槽(13)的侧壁相配合。
  9. 根据权利要求1所述的接触器，其特征在于：所述下容纳腔(22)的数量为三个，所述限位结构的数量则为四个；所述三个下容纳腔(22)靠触头支持(2)的本体(20)一侧排列设置，并且，成排的三个下容纳腔(22)与本体(20)的另一侧之间形成空腔(23)。
  10. 根据权利要求9所述的接触器，其特征在于：所述空腔(23)与其邻近的下容纳腔(22)之间设有隔板(28)，所述躯壳(1)设有与隔板(28)相配合的挡板(14)。
PCT/CN2017/077991 2016-12-20 2017-03-24 接触器 WO2018113116A1 (zh)

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