阅读说明：本技术 一种防电弧开关 (Arc-proof switch ) 是由 张仕森 刘远方 张梅 陈旭娇 张宏文 郑立清 曹西飞 黄敦建 于 2021-09-22 设计创作，主要内容包括：本发明公开一种防电弧开关,包括：盖板；安装基座；钮子；触头组件,其位于所述安装基座内,所述触头组件包括动触头组件和静触头组件；隔挡件,所述隔挡件转动设置,隔挡件包括驱动部和隔挡部,所述驱动部靠近所述钮子设置,所述隔挡部靠近所述触头组件设置,按压作用于所述盖板时,所述盖板带动所述钮子转动,所述钮子作用于所述驱动部使得所述隔挡件转动,所述隔挡部运动至由接通状态转换为断开状态的所述动触头组件的动触点和所述静触头组件的静触点之间。通过设置有隔挡件,按压盖板时,钮子作用于驱动部使得隔挡部运动至有接通状态转换为断开状态的动触点和静触点之间,从而实现隔挡部切断因触点断开而产生的高温电弧使其熄灭。(The invention discloses an arc-proof switch, comprising: a cover plate; mounting a base; buttonholes; the contact assembly is positioned in the mounting base and comprises a movable contact assembly and a fixed contact assembly; the isolating piece is arranged in a rotating mode and comprises a driving portion and an isolating portion, the driving portion is arranged close to the button, the isolating portion is arranged close to the contact assembly, when the button is pressed to act on the cover plate, the cover plate drives the button to rotate, the button acts on the driving portion to enable the isolating piece to rotate, and the isolating portion moves to a position between a moving contact of the moving contact assembly and a static contact of the static contact assembly, wherein the moving contact of the moving contact assembly is converted into a disconnecting state from the connecting state. Through the arrangement of the blocking piece, when the cover plate is pressed, the button acts on the driving part to enable the blocking part to move to a position between the movable contact and the fixed contact, wherein the movable contact and the fixed contact are in a switching-on state and a switching-off state, so that the blocking part can cut off high-temperature electric arcs generated by the disconnection of the contacts to extinguish the high-temperature electric arcs.)

1. An arc-resistant switch, comprising:

a cover plate;

mounting a base;

the button is arranged in a rotating mode and is positioned between the cover plate and the mounting base;

the contact assembly is positioned in the mounting base and comprises a movable contact assembly and a fixed contact assembly, and the movable contact assembly and the fixed contact assembly are oppositely arranged;

the isolating piece is arranged in a rotating mode and comprises a driving portion and an isolating portion, the driving portion is arranged close to the button, the isolating portion is arranged close to the contact assembly, when the button is pressed to act on the cover plate, the cover plate drives the button to rotate, the button acts on the driving portion to enable the isolating piece to rotate, and the isolating portion moves to a position between a moving contact of the moving contact assembly and a static contact of the static contact assembly, wherein the moving contact of the moving contact assembly is converted into a disconnecting state from the connecting state.

2. The arc resistant switch of claim 1 further comprising a reset member acting on the drive portion to move the blocking portion out of the movable contact and the stationary contact from the open state to the closed state.

3. The arc resistant switch of claim 2, further comprising a pressure plate, wherein the button is disposed through the pressure plate; the reset piece is an elastic piece, one end of the elastic piece is abutted to the blocking portion, and the other end of the elastic piece is abutted to the mounting recessed portion of the pressing plate.

4. The arc protection switch of claim 3, wherein the resilient member is a return spring, and the return spring is received in the first positioning boss in the mounting recess.

5. The arc protection switch of claim 4, wherein the return spring is further sleeved on the second positioning boss of the driving portion.

6. The arc resistant switch of claim 3 wherein said pressure plate has a receiving portion, said receiving portion being located outside of said contact assembly, said reset element acting on said drive portion to move said blocking portion into said receiving portion.

7. The arc resistant switch of claim 3 wherein the barrier member further comprises a shaft, the shaft being positioned within a shaft hole of the pressure plate.

8. The arc resistant switch of claim 7 wherein the drive portion and the blocking portion are angularly disposed, and the pivot axis is disposed at an angle between the drive portion and the blocking portion.

9. The arc-proof switch of any one of claims 1 to 8, wherein a side of the button facing the driving part is provided with an acting projection which acts on the driving part.

10. The arc protection switch of any one of claims 1 to 8, wherein the barrier is a hook-like structure disposed toward the contact assembly.

Technical Field

The invention relates to the technical field of electricity, in particular to an arc-proof switch.

Background

With the rapid development of the economic society, the number of electric devices in large-scale electric places such as machine rooms, shopping malls and schools is increasing, and the task of reducing the energy consumption of the electric devices is urgent. In these electricity sites, there are a huge number of dc electricity consumers, and most of them use ac power, and during operation, ac adapter is equipped to convert ac power into dc power to supply the dc electricity consumers, and the conversion efficiency of the process is usually about 80%. In the direct current power supply, when the plug is plugged in and pulled out of the direct current socket, an air gap between the plug and the socket conductor is broken down to generate high-temperature electric arc.

In the prior art, the arc blocking plate is arranged on the inner wall of the shell to block high-temperature electric arcs, so that the effect of spark blocking is achieved. However, the arc shield only shields the high-temperature arc inside, and the high-temperature arc is prevented from leaking outside as much as possible, so that the influence of the high-temperature arc on the conductive member cannot be fundamentally eliminated, and the service life is affected.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defect that the service life of an arc-proof switch is affected by the influence of a high-temperature arc on a conductive part, which is caused by the fact that the high-temperature arc is just blocked by an arc-blocking plate in the prior art and cannot be fundamentally eliminated because the high-temperature arc is prevented from leaking outside as much as possible.

An arc-resistant switch, comprising:

a cover plate;

mounting a base;

the button is arranged in a rotating mode and is positioned between the cover plate and the mounting base;

the contact assembly is positioned in the mounting base and comprises a movable contact assembly and a fixed contact assembly, and the movable contact assembly and the fixed contact assembly are oppositely arranged;

the isolating piece is arranged in a rotating mode and comprises a driving portion and an isolating portion, the driving portion is arranged close to the button, the isolating portion is arranged close to the contact assembly, when the button is pressed to act on the cover plate, the cover plate drives the button to rotate, the button acts on the driving portion to enable the isolating piece to rotate, and the isolating portion moves to a position between a moving contact of the moving contact assembly and a static contact of the static contact assembly, wherein the moving contact of the moving contact assembly is converted into a disconnecting state from the connecting state.

Further, the reset device also comprises a reset piece, wherein the reset piece acts on the driving part to drive the blocking part to move out of the movable contact and the fixed contact which are switched from the off state to the on state.

Furthermore, the button fixing device also comprises a pressing plate, and the button is arranged on the pressing plate in a penetrating way; the reset piece is an elastic piece, one end of the elastic piece is abutted to the blocking portion, and the other end of the elastic piece is abutted to the mounting recessed portion of the pressing plate.

Further, the elastic piece is a return spring, and the return spring is sleeved on the first positioning boss in the mounting concave part.

Furthermore, the return spring is also sleeved on the second positioning boss of the driving part.

Further, the pressing plate is provided with an accommodating part, the accommodating part is positioned outside the contact assembly, and the reset piece acts on the driving part to drive the blocking part to move into the accommodating part.

Furthermore, the blocking piece also comprises a rotating shaft, and the rotating shaft is positioned in a rotating shaft hole of the pressing plate.

Furthermore, the driving part and the blocking part are arranged at an angle, and the rotating shaft is arranged at the included angle of the driving part and the blocking part.

Furthermore, an acting bulge is arranged on one side, facing the driving part, of the button, and acts on the driving part.

Further, the barrier is a hook-shaped structure disposed toward the contact assembly.

The technical scheme of the invention has the following advantages:

1. the invention provides an arc-proof switch, comprising: a cover plate; mounting a base; the button is arranged in a rotating mode and is positioned between the cover plate and the mounting base; the contact assembly is positioned in the mounting base and comprises a movable contact assembly and a fixed contact assembly, and the movable contact assembly and the fixed contact assembly are oppositely arranged; the isolating piece is arranged in a rotating mode and comprises a driving portion and an isolating portion, the driving portion is arranged close to the button, the isolating portion is arranged close to the contact assembly, when the button is pressed to act on the cover plate, the cover plate drives the button to rotate, the button acts on the driving portion to enable the isolating piece to rotate, and the isolating portion moves to a position between a moving contact of the moving contact assembly and a static contact of the static contact assembly, wherein the moving contact of the moving contact assembly is converted into a disconnecting state from the connecting state. According to the arc-proof switch with the structure, the blocking piece is arranged, when the cover plate is pressed, the cover plate drives the button to rotate, the button acts on the driving part to enable the blocking part to move to a position between a movable contact and a fixed contact, wherein the movable contact and the fixed contact are in a switching-on state and a switching-off state, so that the blocking part is switched off to extinguish a high-temperature arc generated due to the switching-off of the contacts, the influence of the high-temperature arc on a conductive part is eliminated, the safety performance is improved, and the service life is prolonged.

2. In the arc-proof switch provided by the invention, the reset piece acts on the driving part to drive the blocking part to move out of the movable contact and the fixed contact which are converted from the off state to the on state. According to the arc-proof switch with the structure, the reset piece is arranged, when the movable contact and the fixed contact need to be connected, the reset piece enables the blocking part to be reset outside the movable contact and the fixed contact but not between the movable contact and the fixed contact, and normal connection of the movable contact and the fixed contact is ensured.

3. The invention provides an arc-proof switch, wherein the elastic piece is a return spring, and the return spring is sleeved on a first positioning boss in the mounting concave part. The reset spring is also sleeved on the second positioning boss of the driving part. The arc-proof switch with the structure is provided with the first positioning boss and the second positioning boss, so that the reset spring is convenient to position and install.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a cross-sectional view of an arc-proof switch provided in an embodiment of the present invention as an arc-proof double control switch;

FIG. 2 is a cross-sectional view of the arc protection double control switch of FIG. 1 as pressed;

FIG. 3 is a cross-sectional view of the arc protection double control switch of FIG. 2 shown further depressed;

FIG. 4 is a schematic structural view of the button, barrier member and contact assembly shown in FIG. 3;

FIG. 5 is a schematic view of the structure of the barrier shown in FIG. 4;

FIG. 6 is a schematic view of the button, the barrier member and the pressing plate shown in FIG. 1;

FIG. 7 is a schematic view of the construction of the barrier and pressure plate shown in FIG. 6;

FIG. 8 is a schematic view of the platen shown in FIG. 7;

FIG. 9 is a schematic view of the rotated platen shown in FIG. 8;

FIG. 10 is a schematic view of the platen shown in FIG. 9 after rotation;

FIG. 11 is a cross-sectional view of the arc protection switch provided in the embodiment of the present invention shown in FIG. 1 as an arc protection single control switch;

FIG. 12 is a cross-sectional view of the arc protection single control switch of FIG. 11 shown depressed;

FIG. 13 is a cross-sectional view of the arc-resistant single control switch of FIG. 12 shown further depressed;

FIG. 14 is a schematic view of the button, barrier and contact assembly shown in FIG. 13;

description of reference numerals:

1-cover plate, 2-panel, 3-mounting base, 4-button, 41-spring, 42-top rod, 43-action protrusion, 51-fixed contact component, 511-fixed contact, 52-movable contact component, 521-movable contact, 6-blocking piece, 61-driving part, 611-second positioning boss, 62-blocking part, 63-rotating shaft, 7-reset spring, 8-pressing plate, 81-rotating shaft hole, 82-accommodating part, 83-mounting recessed part, 831-first positioning boss and 9-conducting piece component.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Examples

An arc-proof switch as shown in fig. 1 to 14 comprises a cover plate 1, a panel 2, a mounting base 3, a button 4, a contact assembly, a barrier member 6, a reset member, a pressure plate 8 and a conductive member assembly 9. Wherein, the cover plate 1 is arranged on the panel 2; the panel 2 is arranged on the mounting base 3; the button 4 is rotatably arranged and positioned between the cover plate 1 and the mounting base 3, and a spring 41 and an ejector rod 42 are sequentially arranged in the button 4 along the direction far away from the cover plate 1; the contact assembly is located in the mounting base 3, the contact assembly comprises a moving contact assembly 52 and a fixed contact assembly 51, the moving contact assembly 52 and the fixed contact assembly 51 are oppositely arranged along the vertical direction in fig. 1 to 4, and the mandril 42 abuts against the moving contact assembly 52; the button 4 is arranged through the pressure plate 8; the conductive component assembly 9 is connected to the movable contact assembly 52.

The blocking member 6 in this embodiment is rotatably disposed, the blocking member 6 includes a driving portion 61, a blocking portion 62 and a rotating shaft hole 81, the driving portion 61 is disposed near the button 4, the blocking portion 62 is disposed near the contact assembly, when the pressing is applied to the cover plate 1, the cover plate 1 drives the button 4 to rotate, the button 4 is applied to the driving portion 61 to rotate the blocking member 6, and the blocking portion 62 moves to a position between the moving contact 521 of the moving contact assembly 52 and the stationary contact 511 of the stationary contact assembly 51, which is converted from the on state to the off state.

As shown in fig. 4 and 14, the button 4 is provided with an acting projection 43 on a side facing the driving part 61, and the acting projection 43 acts on the driving part 61. Wherein the driving portion 61 and the blocking portion 62 are disposed at an angle, and the blocking portion 62 is a hook-shaped structure disposed toward the contact assembly. As shown in fig. 3 and 8 to 10, the rotating shaft hole 81 is located in the rotating shaft hole 81 of the pressure plate 8, and the rotating shaft hole 81 is provided at the corner between the driving portion 61 and the blocking portion 62.

The reset member in this embodiment acts on the driving part 61 to move the blocking part 62 out of the movable contact 521 and the stationary contact 511, which are switched from the off state to the on state. As shown in fig. 8 and 10, the pressure plate 8 is provided with an accommodating portion 82, the accommodating portion 82 is located outside the contact assembly, and the reset piece acts on the driving portion 61 to drive the blocking portion 62 to move into the accommodating portion 82; and the restoring member is an elastic member, one end of which abuts against the blocking portion 62 and the other end of which abuts against the mounting recess portion 83 of the pressing plate 8. Specifically, the elastic element is a return spring 7, the return spring 7 is sleeved on the first positioning boss 831 in the mounting recess 83, and the return spring 7 is further sleeved on the second positioning boss 611 of the driving portion 61.

By providing the reset member, when the movable contact 521 and the fixed contact 511 need to be connected, the reset member resets the barrier 62 to be located outside the movable contact 521 and the fixed contact 511 but not between the movable contact 521 and the fixed contact 511, thereby ensuring normal connection of the movable contact 521 and the fixed contact 511.

As shown in fig. 1 to 10, the arc-proof switch is an arc-proof double-control switch, two movable contacts 521 are provided, two stationary contacts 511 are provided, two barrier members 6 are provided, and two reset members are provided. In fig. 1, the stationary contact 511 and the movable contact 521 on the left side are in the on state; in fig. 1, the cover plate 1 is pressed to the left side, the cover plate 1 drives the button 4 to rotate, the movable contact assembly 52 rotates under the action of the top rod 42 in the button 4, and meanwhile, the blocking piece 6 also rotates around the rotating shaft hole 81 under the action of the button 4; in fig. 2, the movable contact assembly 52 rotates clockwise, the movable contact 521 on the left side rises and the movable contact 521 on the right side falls, and at the same time, both the barrier members 6 rotate counterclockwise, so that the movable contact 521 on the left side and the fixed contact 511 on the left side are gradually disconnected, and at the same time, the barrier member 6 on the left side gradually moves to between the movable contact 521 on the left side and the fixed contact 511 on the left side, so as to cut off the high-temperature arc generated by the disconnection of the contacts, and while the movable contact 521 on the right side and the fixed contact 511 on the right side are gradually connected, the barrier member 6 on the right side gradually moves out of the movable contact 521 on the right side and the fixed contact 511 on the right side; in fig. 3, the movable contact 521 on the right side and the fixed contact 511 on the right side are in contact, and at the same time, the barrier member 6 on the left side moves between the movable contact 521 on the left side and the fixed contact 511 on the left side.

And as shown in fig. 11 to 14, the arc-proof switch is an arc-proof single control switch, one movable contact 521 is provided and one stationary contact 511 is provided, in which case one barrier member 6 is provided and one reset member is also provided. In fig. 11, the movable contact 521 and the stationary contact 511 are in a connected state; in fig. 12, the cover plate 1 is pressed to the right side, the button 4 is driven by the cover plate 1 to rotate clockwise, at this time, the moving contact assembly 52 rotates counterclockwise under the action of the push rod 42 in the button 4, the moving contact 521 and the fixed contact 511 are gradually disconnected, meanwhile, the blocking piece 6 also rotates clockwise under the action of the button 4, the blocking piece 6 gradually moves to a position between the moving contact 521 on the left side and the fixed contact 511 on the left side, and high-temperature electric arcs generated due to the disconnection of the contacts are cut off; in fig. 13, the movable contact 521 and the stationary contact 511 are disconnected, and at the same time, the barrier member 6 moves between the movable contact 521 on the left side and the stationary contact 511 on the left side.

According to the arc-proof switch, the barrier piece 6 is arranged, when the cover plate 1 is pressed, the cover plate 1 drives the button 4 to rotate, the button 4 acts on the driving part 61, so that the barrier part 62 moves to a position between the movable contact 521 and the fixed contact 511, the movable contact is switched into the off state from the on state, the high-temperature arc generated by the disconnection of the contacts is cut off by the barrier part 62, the high-temperature arc is extinguished, the influence of the high-temperature arc on a conductive part is eliminated, the safety performance is improved, and the service life is prolonged.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.