CN111584258A - Vibration reduction contact structure with damping block for inhibiting contact attraction impact force - Google Patents

Vibration reduction contact structure with damping block for inhibiting contact attraction impact force Download PDF

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Publication number
CN111584258A
CN111584258A CN201910121257.5A CN201910121257A CN111584258A CN 111584258 A CN111584258 A CN 111584258A CN 201910121257 A CN201910121257 A CN 201910121257A CN 111584258 A CN111584258 A CN 111584258A
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contact
damping block
spring
static
moving contact
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姚普粮
龙光成
欧世文
劳承毅
曹刚
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Beihai Shenlan Science And Technology Development Co ltd
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Beihai Shenlan Science And Technology Development Co ltd
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    • 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
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/04—Contacts

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

一种设置阻尼块抑制触点吸合冲击力的防抖动触头结构，包括动触头和静触头，其中：动触头具有动触点、动触头触簧,静触头具有静触点、静触头触簧。其特征是：所述的静触头和动触头均设置块状或环形阻尼块及附带支撑体，两组附带支撑体之中至少其中一组做成弹簧体，其余的一组可做成刚性支撑体或弹簧体。附带支撑体支撑对应阻尼块，做成弹簧体的附带支撑体使对应阻尼块能利用弹簧体弹性形变产生弹性伸缩位移，在触点吸合时，带动动触头阻尼块碰撞静触头阻尼块，通过做成弹簧体的附带支撑体产生弹性形变缓冲抑制动触点对静触点的冲击力,达到触点吸合时抑制吸合冲击力的效果，由此可制造出防止抖动、长寿命的继电器、接触器或断路器。An anti-vibration contact structure is provided with a damping block to suppress the contact pull-in impact force, comprising a moving contact and a static contact, wherein: the moving contact has a moving contact, a moving contact contact spring, and the static contact has a static contact Contact, static contact contact spring. It is characterized in that: both the static contact and the moving contact are provided with block or annular damping blocks and supporting bodies, at least one of the two sets of supporting bodies is made of spring bodies, and the other set can be made of spring bodies. Rigid support or spring body. The attached support body supports the corresponding damping block, and the attached support body made of the spring body enables the corresponding damping block to use the elastic deformation of the spring body to generate elastic expansion and contraction displacement. When the contact is pulled in, it drives the moving contact damping block to collide with the static contact damping block , Through the supporting body made of the spring body, the elastic deformation buffering suppresses the impact force of the moving contact on the static contact, so as to achieve the effect of suppressing the impact force when the contact is pulled in, thereby making it possible to prevent jitter and have a long life. relays, contactors or circuit breakers.

Description

一种设置阻尼块抑制触点吸合冲击力的减少抖动触头结构A vibration-reducing contact structure with damping blocks to suppress the contact pull-in impact force

技术领域technical field

本发明涉及电器领域中的继电器、接触器或断路器的触头结构，具体是一种在继电器、接触器或断路器触点吸合和断开时抑制冲击力的减少抖动触头结构。The invention relates to a contact structure of a relay, a contactor or a circuit breaker in the electrical field, in particular to a jitter-reducing contact structure that suppresses impact force when the contacts of the relay, contactor or circuit breaker are pulled in and disconnected.

背景技术Background technique

现有的电磁式继电器、接触器或断路器，减少其接点吸合和断开时的抖动主要措施是采用改变机械参数和触簧系统的材料的方法，例如对于静触簧为刚性的触簧系统，增加触点被压力，或者选用材料密度小、弹性模量大及振动衰减系数大的动触簧材料，或者减少动触簧片的长度和宽度、增大厚度等提高抗振动性，而很少在继电器的触头结构上采取如何抑制吸合和断开冲击力的措施，提高抗振动性以减少抖动，结果减振效果有限。Existing electromagnetic relays, contactors or circuit breakers, the main measures to reduce the jitter when the contacts are pulled in and disconnected are to change the mechanical parameters and the material of the contact spring system, such as the rigid contact spring for the static contact spring. system, increase the contact pressure, or choose the moving contact spring material with low material density, large elastic modulus and large vibration attenuation coefficient, or reduce the length and width of the moving contact spring, increase the thickness, etc. to improve the vibration resistance, while Few measures are taken on the contact structure of the relay to suppress the impact force of pull-in and disconnection, and the vibration resistance is improved to reduce the vibration. As a result, the vibration reduction effect is limited.

发明内容SUMMARY OF THE INVENTION

本发明所要解决的技术问题是在目前使用的常规触头结构基础上对触头结构进行改进，提供一种结构新颖、效果好的设置阻尼块抑制触点吸合冲击力的触头结构，利用此触头结构，可制造各种减少抖动、效率高、成本低、体积小、长寿命的继电器、接触器或断路器。The technical problem to be solved by the present invention is to improve the contact structure on the basis of the conventional contact structure currently used, so as to provide a contact structure with novel structure and good effect, which is provided with a damping block to suppress the contact pull-in impact force. This contact structure can manufacture various relays, contactors or circuit breakers with reduced jitter, high efficiency, low cost, small size and long life.

本发明的目的是这样实现的：一种设置阻尼块抑制触点吸合冲击力的防抖动触头结构，包括动触头(A)和静触头(B)，其中：动触头(A)具有动触点(1)、动触头触簧(5),动触点(1)连接在动触头触簧(5)上，静触头(B)具有静触点（2）、静触头触簧（6）,静触点（2）连接在静触头触簧（6）上。其特征是：The purpose of the present invention is to achieve this: an anti-vibration contact structure with a damping block to suppress the contact pull-in impact force, including a moving contact (A) and a static contact (B), wherein: the moving contact ( A) has a moving contact (1), a moving contact spring (5), the moving contact (1) is connected to the moving contact spring (5), and the static contact (B) has a static contact (2) , The static contact spring (6), the static contact (2) is connected to the static contact spring (6). Its characteristics are:

1.所述的动触头（A）设置动触头阻尼块(3)和动触头阻尼块附带支撑体(7)，动触头阻尼块(3)做成块状或环形，动触头阻尼块附带支撑体(7)一端与动触头阻尼块(3)相连接，另一端与动触头触簧(5)相连接，支撑动触头阻尼块(3)，使动触头阻尼块(3）贴近并环绕动触点(1)，与动触头触簧(5)的距离超过动触点(1)沿吸合方向的长度；所述的静触头(B)设置静触头阻尼块(4)和静触头阻尼块附带支撑体（8），静触头阻尼块(4)做成块状或环形，静触头阻尼块附带支撑体（8）一端与静触头阻尼块(4)相连接，另一端与静触头触簧（6）相连接，支撑静触头阻尼块(4)，使静触头阻尼块(4)贴近并环绕静触点（2），与静触头触簧(6)的距离超过静触点(2)沿吸合方向的长度。1. The moving contact (A) is provided with a moving contact damping block (3) and a supporting body (7) attached to the moving contact damping block. The moving contact damping block (3) is made into a block or ring, and the moving contact One end of the head damping block with supporting body (7) is connected with the moving contact damping block (3), and the other end is connected with the moving contact spring (5), supporting the moving contact damping block (3), so that the moving contact The damping block (3) is close to and surrounds the moving contact (1), and the distance from the moving contact spring (5) exceeds the length of the moving contact (1) along the pull-in direction; the static contact (B) is set The static contact damping block (4) and the static contact damping block are attached with a supporting body (8). The contact damping block (4) is connected, and the other end is connected with the static contact contact spring (6) to support the static contact damping block (4), so that the static contact damping block (4) is close to and surrounds the static contact ( 2), the distance from the static contact spring (6) exceeds the length of the static contact (2) along the pull-in direction.

2.所述的动触头阻尼块附带支撑体(7)和所述的静触头阻尼块附带支撑体（8），两组支撑体之中至少其中一组做成弹簧体，其余的一组可做成刚性支撑体或弹簧体。所述的动触头阻尼块附带支撑体(7)做成弹簧体时，通过弹性形变使动触头阻尼块(3)沿着动触点（1）吸合方向产生弹性伸缩位移，所述的静触头阻尼块附带支撑体(8)做成弹簧体时，通过弹性形变使静触头阻尼块(4)沿着静触点（2）吸合方向产生弹性伸缩位移。2. The movable contact damping block with supporting body (7) and the static contact damping block with supporting body (8), at least one of the two groups of supports is made into a spring body, and the other one is made of a spring body. Groups can be made as rigid supports or spring bodies. When the movable contact damping block is made into a spring body with a supporting body (7), the movable contact damping block (3) is elastically stretched and displaced along the pull-in direction of the movable contact (1) through elastic deformation. When the static contact damping block is attached with a support body (8) to form a spring body, the static contact damping block (4) is elastically stretched and displaced along the suction and closing direction of the static contact (2) through elastic deformation.

3.在触点吸合时，所述动触头阻尼块(3)首先碰撞到静触头阻尼块(4)，通过动触头阻尼块附带支撑体(7)和静触头阻尼块附带支撑体(8)中的弹簧体弹性形变，使动触头阻尼块(3)和静触头阻尼块(4)缓冲抑制吸合冲击力，紧接着所述动触点(1)才与静触点（2）接触并吸合。3. When the contacts are pulled in, the moving contact damping block (3) first collides with the static contact damping block (4), and the moving contact damping block is attached to the supporting body (7) and the static contact damping block is attached. The spring body in the support body (8) is elastically deformed, so that the movable contact damping block (3) and the static contact damping block (4) buffer and suppress the pull-in impact force, and then the movable contact (1) does not interact with the static contact. Contact (2) contacts and pulls in.

4.所述的动触头阻尼块附带支撑体(7)做成弹簧体时,所选择的弹簧体劲度系数和位移参数，依据胡克定律计算的弹簧体弹力小于触点吸合力。所述的静触头阻尼块附带支撑体(8)做成弹簧体时，所选择的弹簧体劲度系数和位移参数，依据胡克定律计算的弹簧体弹力小于触点吸合力,使触点吸合时，动触头阻尼块(3)碰撞静触头阻尼块(4)后附带支撑体中产生的弹簧体弹性形变，既能缓冲抑制动触点(1)对静触点(2)的冲击力，同时，不因碰撞后恢复的弹性力大于触点吸合力造成已吸合的触点断开。4. When the movable contact damping block with supporting body (7) is made into a spring body, the selected spring body stiffness coefficient and displacement parameters, the spring body elastic force calculated according to Hooke's law is smaller than the contact attraction force. When the static contact damping block with the supporting body (8) is made into a spring body, the selected spring body stiffness coefficient and displacement parameters, the spring body elastic force calculated according to Hooke's law is smaller than the contact attraction force, so that the contact When the moving contact damping block (3) collides with the static contact damping block (4), the elastic deformation of the spring body generated in the attached support body can buffer and restrain the moving contact (1) against the static contact (2). At the same time, the contact that has been pulled is not disconnected because the elastic force recovered after the collision is greater than the pull-in force of the contact.

5.所述的动触点(1)和动触头触簧(5)、静触点（2）和静触头触簧（6）用金属做成,所述的动触头阻尼块(3)和静触头阻尼块(4)采用耐碰撞材料做成，所述的动触头阻尼块附带支撑体(7)和静触头阻尼块附带支撑体(8)采用金属或非金属材料做成，所述的动触头阻尼块(3)、静触头阻尼块(4)、动触头阻尼块附带支撑体(7)和静触头阻尼块附带支撑体(8)采用不导电材料制作或增加绝缘层，制成不导电绝缘体。5. The moving contact (1), the moving contact spring (5), the static contact (2) and the static contact spring (6) are made of metal, and the moving contact damping block ( 3) and the static contact damping block (4) are made of anti-collision materials, and the supporting body (7) for the moving contact damping block and the supporting body (8) for the static contact damping block are made of metal or non-metallic materials The movable contact damping block (3), the static contact damping block (4), the movable contact damping block with a supporting body (7) and the static contact damping block with a supporting body (8) are made of non-conductive The material is made or an insulating layer is added to make a non-conductive insulator.

本发明与现有触头结构相比，具有如下有益效果：在触点吸合时，带动动触头阻尼块(3)首先碰撞到静触头阻尼块(4)，通过动触头阻尼块附带支撑体(7)和静触头阻尼块附带支撑体(8)中的弹簧体弹性形变，使动触头阻尼块(3)和静触头阻尼块(4)缓冲抑制吸合冲击力，紧接着所述动触点(1)才与静触点（2）接触并吸合，达到触点吸合时抑制冲击力的效果，由此可制造出减少抖动、长寿命的继电器、接触器或断路器。Compared with the existing contact structure, the present invention has the following beneficial effects: when the contacts are pulled in, the movable contact damping block (3) is driven to first collide with the static contact damping block (4), and the movable contact damping block (4) is driven by the moving contact damping block. The spring body in the attached support body (7) and the static contact damping block is elastically deformed in the attached support body (8), so that the movable contact damping block (3) and the static contact damping block (4) buffer and restrain the pull-in impact force, Immediately after the moving contact (1) comes into contact with the static contact (2) and pulls in, the effect of suppressing the impact force when the contact is pulled in can be achieved, thereby making it possible to manufacture relays and contactors with reduced jitter and long life. or circuit breaker.

附图说明：Description of drawings:

图1是本发明实施例1的触头结构整体示意图；Fig. 1 is the overall schematic diagram of the contact structure of Embodiment 1 of the present invention;

图2为本发明实施例1的触头结构立体示意图；FIG. 2 is a three-dimensional schematic diagram of a contact structure according to Embodiment 1 of the present invention;

图3是本发明实施例2的触头结构整体示意图；Fig. 3 is the overall schematic diagram of the contact structure according to the second embodiment of the present invention;

图4为本发明实施例2的触头结构立体示意图；4 is a schematic perspective view of a contact structure according to Embodiment 2 of the present invention;

图5是本发明实施例3的触头结构整体示意图；Fig. 5 is the overall schematic diagram of the contact structure of Embodiment 3 of the present invention;

图6为本发明实施例3的触头结构立体示意图；FIG. 6 is a three-dimensional schematic diagram of a contact structure according to Embodiment 3 of the present invention;

图7是本发明实施例4的触头结构整体示意图；Fig. 7 is the overall schematic diagram of the contact structure of Embodiment 4 of the present invention;

图8为本发明实施例4的触头结构立体示意图。FIG. 8 is a three-dimensional schematic diagram of a contact structure according to Embodiment 4 of the present invention.

附图标记说明：动触头(A)、动触点(1)、动触头触簧(5)、动触头阻尼块(3)、动触头阻尼块附带支撑体(7)，静触头（B）、静触点（2）、静触头触簧（6）、静触头阻尼块(4)、静触头阻尼块附带支撑体(8)。Description of reference numerals: moving contact (A), moving contact (1), moving contact spring (5), moving contact damping block (3), moving contact damping block with supporting body (7), static The contact (B), the static contact (2), the static contact spring (6), the static contact damping block (4), and the static contact damping block are provided with a supporting body (8).

具体实施方式：Detailed ways:

下面结合附图的实施例1、实施例2、实施例3、实施例4对本发明作进一步的详述。The present invention will be further described in detail below with reference to Embodiment 1, Embodiment 2, Embodiment 3, and Embodiment 4 of the accompanying drawings.

实施例1Example 1

本实施例1的动触头阻尼块（3）和静触头阻尼块（4）均采用环形结构，动触头阻尼块附带支撑体（7）制作成刚性支撑体，围绕动触点（1），静触头阻尼块附带支撑体（8）制作成弹簧体，弹簧体的螺旋圈环绕静触点（2）。Both the moving contact damping block (3) and the static contact damping block (4) of the present embodiment 1 adopt a ring structure, and the moving contact damping block is made with a supporting body (7) into a rigid supporting body, which surrounds the moving contact (1). ), the static contact damping block is made with a supporting body (8) into a spring body, and the coil of the spring body surrounds the static contact (2).

实施例1的触头结构包括动触头(A)和静触头(B)，其中：动触头(A)具有动触点(1)、动触头触簧(5),动触点(1)连接在动触头触簧(5)上，在动触头（A）设置动触头阻尼块(3)和动触头阻尼块附带支撑体(7)，动触头阻尼块(3)做成环形，环绕动触点(1)，在高出动触点(1)位置，动触头阻尼块附带支撑体(7)做成4条刚性支撑体，围绕动触点(1)，与动触点(1)吸合方向平行，使其一端与环形动触头阻尼块(3)相连接，另一端与动触头触簧(5)相连接，支撑环形动触头阻尼块(3)；静触头(B)具有静触点(2)、静触头触簧(6),静触点(2)连接在静触头触簧(6)上，在静触头（B）设置静触头阻尼块(4)和静触头阻尼块附带支撑体(8)，静触头阻尼块(4)做成环形，环绕静触点(2)，在高出静触点(2)位置，静触头阻尼块附带支撑体(8)做成1条弹簧体，弹簧体的螺旋圈环绕静触点(2)，与静触点(2)吸合方向平行，使其一端与环形静触头阻尼块(4)相连接，另一端与静触头触簧(6)相连接，支撑环形静触头阻尼块(4)，环形静触头阻尼块(4)能利用静触头阻尼块附带支撑体（8）的弹簧体弹性形变沿着静触点（2）吸合方向产生弹性伸缩位移。The contact structure of Embodiment 1 includes a moving contact (A) and a stationary contact (B), wherein: the moving contact (A) has a moving contact (1), a moving contact spring (5), and the moving contact (1) Connect to the moving contact spring (5), set the moving contact damping block (3) and the moving contact damping block with a supporting body (7) on the moving contact (A), and the moving contact damping block ( 3) It is made into a ring shape and surrounds the moving contact (1). At the position higher than the moving contact (1), the moving contact damping block with the supporting body (7) is made into 4 rigid supports, surrounding the moving contact (1). , parallel to the pull-in direction of the moving contact (1), so that one end is connected to the annular moving contact damping block (3), and the other end is connected to the moving contact spring (5) to support the annular moving contact damping block (3); The static contact (B) has a static contact (2), a static contact spring (6), the static contact (2) is connected to the static contact spring (6), and the static contact ( B) Set the static contact damping block (4) and the static contact damping block with the supporting body (8). The static contact damping block (4) is formed in a ring shape and surrounds the static contact (2). At position (2), the static contact damping block is attached with a support body (8) to form a spring body, and the coil of the spring body surrounds the static contact (2) and is parallel to the suction direction of the static contact (2), making it One end is connected with the annular static contact damping block (4), and the other end is connected with the static contact contact spring (6) to support the annular static contact damping block (4), and the annular static contact damping block (4) can be used The elastic deformation of the spring body of the static contact damping block with the supporting body (8) produces elastic expansion and contraction displacement along the pull-in direction of the static contact (2).

在触点吸合时，带动环形动触头阻尼块(3)碰撞环形静触头阻尼块(4)，通过静触头阻尼块附带支撑体(8)产生的弹簧体弹性形变缓冲抑制动触点(1)对静触点（2）的冲击力，紧接着所述动触点(1)才与静触点（2）接触并吸合，达到触点吸合时抑制冲击力的效果。When the contacts are pulled in, the ring-shaped moving contact damping block (3) is driven to collide with the ring-shaped static contact damping block (4), and the elastic deformation of the spring body generated by the supporting body (8) of the static contact damping block is used to buffer and restrain the moving contact The impact force of the point (1) on the static contact (2), and then the moving contact (1) comes into contact with the static contact (2) and pulls in, so as to achieve the effect of suppressing the impact force when the contact is pulled in.

实施例2Example 2

本实施例2的动触头阻尼块（3）和静触头阻尼块（4）均采用环形结构，动触头阻尼块附带支撑体（7）制作成弹簧体，弹簧体的螺旋圈环绕动触点（1），静触头阻尼块附带支撑体（8）制作成弹簧体，弹簧体的螺旋圈环绕静触点（2）。Both the moving contact damping block (3) and the static contact damping block (4) in the second embodiment are of annular structure, and the moving contact damping block is made with a supporting body (7) to form a spring body, and the spiral coil of the spring body moves around. The contact (1), the static contact damping block with the supporting body (8) is made into a spring body, and the coil of the spring body surrounds the static contact (2).

实施例2的触头结构包括动触头(A)和静触头(B)，其中：动触头(A)具有动触点(1)、动触头触簧(5),动触点(1)连接在动触头触簧(5)上，在动触头（A）设置动触头阻尼块(3)和动触头阻尼块附带支撑体(7)，动触头阻尼块(3)做成环形，环绕动触点(1)，在高出动触点(1)位置，动触头阻尼块附带支撑体(7)做成1条弹簧体，弹簧体的螺旋圈环绕动触点(1)，与动触点(1)吸合方向平行，使其一端与环形动触头阻尼块(3)相连接，另一端与动触头触簧(5)相连接，支撑环形动触头阻尼块(3)，环形动触头阻尼块(3)能利用动触头阻尼块附带支撑体（7）的弹簧体弹性形变沿着动触点（1）吸合方向产生弹性伸缩位移；静触头(B)具有静触点(2)、静触头触簧(6),静触点(2)连接在静触头触簧(6)上，在静触头（B）设置静触头阻尼块(4)和静触头阻尼块附带支撑体(8)，静触头阻尼块(4)做成环形，环绕静触点(2)，在高出静触点(2)位置，静触头阻尼块附带支撑体(8)做成1条弹簧体，弹簧体的螺旋圈环绕静触点(2)，与静触点(2)吸合方向平行，使其一端与环形静触头阻尼块(4)相连接，另一端与静触头触簧(6)相连接，支撑环形静触头阻尼块(4)，环形静触头阻尼块(4)能利用静触头阻尼块附带支撑体（8）的弹簧体弹性形变沿着静触点（2）吸合方向产生弹性伸缩位移。The contact structure of Embodiment 2 includes a moving contact (A) and a stationary contact (B), wherein: the moving contact (A) has a moving contact (1), a moving contact spring (5), and the moving contact (1) Connect to the moving contact spring (5), set the moving contact damping block (3) and the moving contact damping block with a supporting body (7) on the moving contact (A), and the moving contact damping block ( 3) It is made into a ring shape and surrounds the moving contact (1). At the position higher than the moving contact (1), the moving contact damping block is attached with a support body (7) to make a spring body, and the coil of the spring body surrounds the moving contact. Point (1) is parallel to the moving contact (1) pull-in direction, so that one end is connected to the annular moving contact damping block (3), and the other end is connected to the moving contact contact spring (5) to support the annular moving contact. The contact damping block (3) and the ring-shaped movable contact damping block (3) can utilize the elastic deformation of the spring body of the movable contact damping block with the supporting body (7) to generate elastic expansion and contraction displacement along the suction and closing direction of the movable contact (1). ; The static contact (B) has a static contact (2), a static contact spring (6), the static contact (2) is connected to the static contact spring (6), and is set on the static contact (B) The static contact damping block (4) and the static contact damping block are provided with a supporting body (8). The static contact damping block (4) is formed in a ring shape and surrounds the static contact (2). Position, the static contact damping block is attached with the support body (8) to make a spring body, the coil of the spring body surrounds the static contact (2), and is parallel to the suction direction of the static contact (2), so that one end of the spring body is in the same direction as the ring. The static contact damping block (4) is connected, and the other end is connected with the static contact contact spring (6) to support the annular static contact damping block (4), and the annular static contact damping block (4) can utilize the static contact The elastic deformation of the spring body of the damping block with the supporting body (8) produces elastic expansion and contraction displacement along the pull-in direction of the static contact (2).

在触点吸合时，带动环形动触头阻尼块(3)碰撞环形静触头阻尼块(4)，通过动触头阻尼块附带支撑体(7)和静触头阻尼块附带支撑体(8)共同产生的弹簧体弹性形变缓冲抑制动触点(1)对静触点（2）的冲击力，紧接着所述动触点(1)才与静触点（2）接触并吸合，达到触点吸合时抑制冲击力的效果。When the contacts are pulled in, the ring-shaped moving contact damping block (3) is driven to collide with the ring-shaped static contact damping block (4). 8) The elastic deformation buffer of the spring body produced jointly suppresses the impact force of the moving contact (1) on the static contact (2), and then the moving contact (1) comes into contact with the static contact (2) and pulls in , to achieve the effect of suppressing the impact force when the contact is pulled in.

实施例3Example 3

本实施例3的动触头阻尼块（3）和静触头阻尼块（4）均采用环形结构，动触头阻尼块附带支撑体（7）做成4条刚性支撑体，围绕在动触点（1）周围，静触头阻尼块附带支撑（8）做成4条弹簧体，围绕在静触点（2）周围。Both the moving contact damping block (3) and the static contact damping block (4) in this embodiment 3 are annular structures, and the moving contact damping block is provided with a supporting body (7) to form four rigid supporting bodies, which surround the moving contact damping block (7). Around the point (1), the static contact damping block with the support (8) is made into 4 spring bodies, surrounding the static contact (2).

实施例4的触头结构包括动触头(A)和静触头(B)，其中：动触头(A)具有动触点(1)、动触头触簧(5),动触点(1)连接在动触头触簧(5)上，在动触头（A）设置动触头阻尼块(3)和动触头阻尼块附带支撑体(7)，动触头阻尼块(3)做成环形，环绕动触点(1)，在高出动触点(1)位置，动触头阻尼块附带支撑体(7)做成4条刚性支撑体，围绕在动触点（1）周围，与动触点（1）吸合方向平行并对称分布，使其一端与环形动触头阻尼块(3)相连接，另一端与动触头触簧(5)相连接，支撑环形动触头阻尼块(3)；静触头(B)具有静触点(2)、静触头触簧(6),静触点(1)连接在静触头触簧(6)上，在静触头（B）设置静触头阻尼块(4)和静触头阻尼块附带支撑体(8)，静触头阻尼块(4)做成环形，环绕静触点(2)，在高出静触点(2)位置，静触头阻尼块附带支撑体(8)做成4条弹簧体，围绕在静触点（2）周围，与静触点（2）吸合方向平行并对称分布，使其一端与环形静触头阻尼块(4)相连接，另一端与静触头触簧(6)相连接，支撑环形静触头阻尼块(4)，环形静触头阻尼块(4)能利用静触头阻尼块附带支撑体（6）的弹簧体弹性形变沿着静触点（2）吸合方向产生弹性伸缩位移。The contact structure of Embodiment 4 includes a moving contact (A) and a stationary contact (B), wherein: the moving contact (A) has a moving contact (1), a moving contact spring (5), and the moving contact (1) Connect to the moving contact spring (5), set the moving contact damping block (3) and the moving contact damping block with a supporting body (7) on the moving contact (A), and the moving contact damping block ( 3) It is made into a ring shape and surrounds the moving contact (1). At the position higher than the moving contact (1), the moving contact damping block with the supporting body (7) is made into 4 rigid supports, surrounding the moving contact (1). ), parallel to the moving contact (1) and symmetrically distributed, so that one end is connected to the ring-shaped moving contact damping block (3), and the other end is connected to the moving contact spring (5), supporting the ring The moving contact damping block (3); the static contact (B) has a static contact (2), a static contact contact spring (6), and the static contact (1) is connected to the static contact contact spring (6), A static contact damping block (4) and a static contact damping block with a supporting body (8) are arranged on the static contact (B), and the static contact damping block (4) is formed in a ring shape and surrounds the static contact (2). Above the position of the static contact (2), the static contact damping block with the supporting body (8) is made into 4 spring bodies, which surround the static contact (2) and are parallel to the suction direction of the static contact (2). Symmetrically distributed, so that one end is connected with the annular static contact damping block (4), and the other end is connected with the static contact contact spring (6), supporting the annular static contact damping block (4), the annular static contact damping block (4) The elastic deformation of the spring body of the static contact damping block with the supporting body (6) can be used to generate elastic expansion and contraction displacement along the pull-in direction of the static contact (2).

在触点吸合时，带动环形动触头阻尼块(3)碰撞环形静触头阻尼块(4)，通过静触头阻尼块附带支撑体(8)产生的弹簧体弹性形变缓冲抑制动触点(1)对静触点（2）的冲击力，紧接着所述动触点(1)才与静触点（2）接触并吸合，达到触点吸合时抑制冲击力的效果。When the contacts are pulled in, the ring-shaped moving contact damping block (3) is driven to collide with the ring-shaped static contact damping block (4), and the elastic deformation of the spring body generated by the supporting body (8) of the static contact damping block is used to buffer and restrain the moving contact The impact force of the point (1) on the static contact (2), and then the moving contact (1) comes into contact with the static contact (2) and pulls in, so as to achieve the effect of suppressing the impact force when the contact is pulled in.

实施例4Example 4

本实施例4的动触头阻尼块（3）和静触头阻尼块（4）均采用环形结构，动触头阻尼块附带支撑体（7）做成4条弹簧体，围绕在动触点（1）周围，静触头阻尼块附带支撑（8）做成4条弹簧体，围绕在静触点（2）周围。Both the moving contact damping block (3) and the static contact damping block (4) in the fourth embodiment are of annular structure, and the moving contact damping block is provided with a supporting body (7) to form four spring bodies, surrounding the moving contact (1) Surrounding, the static contact damping block with support (8) is made into 4 spring bodies, surrounding the static contact (2).

实施例4的触头结构包括动触头(A)和静触头(B)，其中：动触头(A)具有动触点(1)、动触头触簧(5),动触点(1)连接在动触头触簧(5)上，在动触头（A）设置动触头阻尼块(3)和动触头阻尼块附带支撑体(7)，动触头阻尼块(3)做成环形，环绕动触点(1)，在高出动触点(1)位置，动触头阻尼块附带支撑体(7)做成4条弹簧体，围绕在动触点（1）周围，与动触点（1）吸合方向平行并对称分布，使其一端与环形动触头阻尼块(3)相连接，另一端与动触头触簧(5)相连接，支撑环形动触头阻尼块(3)，环形动触头阻尼块(3)能利用动触头阻尼块附带支撑体（7）的弹簧体弹性形变沿着动触点（1）吸合方向产生弹性伸缩位移；静触头(B)具有静触点(2)、静触头触簧(6),静触点(1)连接在静触头触簧(6)上，在静触头（B）设置静触头阻尼块(4)和静触头阻尼块附带支撑体(8)，静触头阻尼块(4)做成环形，环绕静触点(2)，在高出静触点(2)位置，静触头阻尼块附带支撑体(8)做成4条弹簧体，围绕在静触点（2）周围，与静触点（2）吸合方向平行并对称分布，使其一端与环形静触头阻尼块(4)相连接，另一端与静触头触簧(6)相连接，支撑环形静触头阻尼块(4)，环形静触头阻尼块(4)能利用静触头阻尼块附带支撑体（6）的弹簧体弹性形变沿着静触点（2）吸合方向产生弹性伸缩位移。The contact structure of Embodiment 4 includes a moving contact (A) and a stationary contact (B), wherein: the moving contact (A) has a moving contact (1), a moving contact spring (5), and the moving contact (1) Connect to the moving contact spring (5), set the moving contact damping block (3) and the moving contact damping block with a supporting body (7) on the moving contact (A), and the moving contact damping block ( 3) It is made into a ring shape and surrounds the moving contact (1). At the position higher than the moving contact (1), the moving contact damping block with the supporting body (7) is made into 4 spring bodies, which surround the moving contact (1). The surrounding area is parallel and symmetrically distributed with the moving contact (1) pulling direction, so that one end is connected with the annular moving contact damping block (3), and the other end is connected with the moving contact contact spring (5), supporting the annular moving contact. The contact damping block (3) and the ring-shaped movable contact damping block (3) can utilize the elastic deformation of the spring body of the movable contact damping block with the supporting body (7) to generate elastic expansion and contraction displacement along the suction and closing direction of the movable contact (1). ; The static contact (B) has a static contact (2), a static contact spring (6), the static contact (1) is connected to the static contact spring (6), and is set on the static contact (B) The static contact damping block (4) and the static contact damping block are provided with a supporting body (8). The static contact damping block (4) is formed in a ring shape, surrounds the static contact (2), and is higher than the static contact (2). Position, the static contact damping block with the supporting body (8) is made into 4 spring bodies, surrounding the static contact (2), parallel to the static contact (2) suction direction and symmetrically distributed, so that one end is connected to the ring The static contact damping block (4) is connected, and the other end is connected with the static contact contact spring (6) to support the annular static contact damping block (4), and the annular static contact damping block (4) can utilize the static contact The elastic deformation of the spring body of the damping block with the supporting body (6) produces elastic expansion and contraction displacement along the pull-in direction of the static contact (2).

在触点吸合时，通过带动环形动触头阻尼块(3)碰撞环形静触头阻尼块(4)，通过动触头阻尼块附带支撑体(7)和静触头阻尼块附带支撑体(8)共同产生的弹簧体弹性形变缓冲抑制动触点(1)对静触点（2）的冲击力，紧接着所述动触点(1)才与静触点（2）接触并吸合，达到触点吸合时抑制冲击力的效果。When the contacts are pulled in, the ring-shaped movable contact damping block (3) is driven to collide with the annular static contact damping block (4), and the movable contact damping block is attached to the supporting body (7) and the static contact damping block is attached to the supporting body. (8) The elastic deformation buffer of the spring body produced jointly suppresses the impact force of the movable contact (1) on the stationary contact (2), and then the movable contact (1) comes into contact with the stationary contact (2) and absorbs it. to achieve the effect of suppressing the impact force when the contacts are pulled in.

Claims (5)

1. The utility model provides a set up damping piece and restrain reduction shake contact structure of contact actuation impact force, includes moving contact (A) and static contact (B), wherein: the moving contact (A) is provided with a moving contact (1) and a moving contact spring (5), the moving contact (1) is connected to the moving contact spring (5), the static contact (B) is provided with a static contact (2) and a static contact spring (6), and the static contact (2) is connected to the static contact spring (6); the method is characterized in that: the moving contact (A) is provided with a moving contact damping block (3) and a moving contact damping block subsidiary support body (7), the moving contact damping block (3) is made into a block shape or an annular shape, one end of the moving contact damping block subsidiary support body (7) is connected with the moving contact damping block (3), the other end of the moving contact damping block subsidiary support body is connected with a moving contact spring (5), the moving contact damping block (3) is supported, the moving contact damping block (3) is pressed close to and surrounds the moving contact (1), and the distance between the moving contact damping block and the moving contact spring (5) exceeds the length of the moving contact (1; the static contact (B) is provided with a static contact damping block (4) and a static contact damping block subsidiary support body (8), the static contact damping block (4) is made into a block shape or an annular shape, one end of the static contact damping block subsidiary support body (8) is connected with the static contact damping block (4), the other end of the static contact damping block subsidiary support body is connected with a static contact spring (6), the static contact damping block (4) is supported, the static contact damping block (4) is enabled to be close to and surround the static contact (2), and the distance between the static contact damping block and the static contact spring (6) exceeds the length of the static contact (2).
2. The contact structure of claim 1, wherein: the moving contact damping block is additionally provided with a support body (7) and the static contact damping block is additionally provided with a support body (8), at least one of the two groups of support bodies is made into a spring body, and the other group of support bodies can be made into a rigid support body or a spring body; when the moving contact damping block subsidiary support body (7) is made into a spring body, the moving contact damping block (3) generates elastic telescopic displacement along the attraction direction of the moving contact (1) through elastic deformation, and when the static contact damping block subsidiary support body (8) is made into the spring body, the static contact damping block (4) generates elastic telescopic displacement along the attraction direction of the static contact (2) through elastic deformation.
3. The contact structure of claim 1, wherein: when the contact is attracted, the moving contact damping block (3) firstly collides with the static contact damping block (4), the moving contact damping block and the static contact damping block buffer and inhibit attraction impact force through elastic deformation of the spring bodies in the moving contact damping block subsidiary support body (7) and the static contact damping block subsidiary support body (8), and then the moving contact (1) is contacted with the static contact (2) and attracted.
4. The contact structure of claim 1, wherein: when the moving contact damping block is manufactured into a spring body by attaching a support body (7), the stiffness coefficient and the displacement parameter of the selected spring body are calculated according to Hooke's law, and the elasticity of the spring body is smaller than the contact attraction force; when the static contact damping block is made into a spring body with the supporting body (8), the stiffness coefficient and the displacement parameter of the selected spring body are smaller than the contact attraction force according to the Hooke's law, so that when the contact is attracted, the moving contact damping block (3) collides with the static contact damping block (4) and then elastically deforms the spring body with the supporting body, the impact force of the moving contact (1) on the static contact (2) can be buffered and restrained, and meanwhile, the attracted contact is not disconnected because the elastic force recovered after collision is larger than the contact attraction force.
5. The contact structure of claim 1, wherein: the movable contact (1) and the movable contact touch spring (5), the fixed contact (2) and the fixed contact touch spring (6) are made of metal, the movable contact damping block (3) and the fixed contact damping block (4) are made of collision-resistant materials, the movable contact damping block subsidiary supporting body (7) and the fixed contact damping block subsidiary supporting body (8) are made of metal or nonmetal materials, the movable contact damping block (3), the fixed contact damping block (4), the movable contact damping block subsidiary supporting body (7) and the fixed contact damping block subsidiary supporting body (8) are made of non-conducting materials or are provided with insulating layers, and a non-conducting insulator is manufactured.
CN201910121257.5A 2019-02-19 2019-02-19 Vibration reduction contact structure with damping block for inhibiting contact attraction impact force Pending CN111584258A (en)

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