CN212113528U

CN212113528U - Switch make-and-break electric connection assembly

Info

Publication number: CN212113528U
Application number: CN202021067233.0U
Authority: CN
Inventors: 黄兴
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2020-12-08
Anticipated expiration: 2030-06-11

Abstract

The utility model discloses a switch on-off electric connection component, wherein a bracket is riveted on a N1 connection terminal to form a seesaw type lever structure with a movable contact; the moving contact is a movable fulcrum of the lever and can slide up and down on the lever fulcrum of the bracket; the handle is arranged at one end of the movable contact frame, and the other end of the movable contact frame is connected with the movable contact; one side of the silver contact is connected with the movable contact; the contact spring is arranged on one side of the moving contact; the reset spring is arranged below the contact spring. The utility model discloses a switch break-make electricity wiring subassembly, the switch has guaranteed by lever structure that the silver contact on the movable contact spring and the silver contact on the binding post can break-make fast, as long as the movable contact crosses the lever fulcrum just can the snap action, do not receive the speed influence of artificial operation, the time of drawing electric arc when having reduced the disconnection between the contact, has strengthened switch arc extinguishing ability, improves the life of product.

Description

Switch make-and-break electric connection assembly

Technical Field

The utility model relates to the field of switch technology, especially, relate to a switch break-make electricity wiring subassembly.

Background

Referring to fig. 1 to 3, the conventional switch make-break electrical connection assembly makes-break current by: the first movable contact spring 60 is mounted on the first movable contact frame 40 through the first contact spring 120 and connected with the first handle 80, the first handle 80 is pressed by a hand to bring the first silver contact 90 on the first movable contact spring 60 into contact with the first silver contact 90 on the first wiring terminal 70, so that the switch is closed, and after the hand is released, the first return spring 110 abuts against the first movable contact frame 40 to drive the first silver contact 90 on the first movable contact spring 60 to move and separate from the contact on the first wiring terminal 70, so that the switch is disconnected.

Therefore, the old product on-off structure has the disadvantages that: the first silver contact 90 of the switch is contacted and separated, the speed is controlled completely by the speed of a human hand, and the switch is not switched on and off instantly, so that in the switching-off process, in the process from a closed state to an on-off critical state, the compression distance L of the first contact spring 120 is gradually increased, the pressure P1 of the first contact spring 120 on the first movable contact 60 is reduced, the contact resistance between the first silver contact 90 on the first movable contact 60 and the first silver contact 90 on the first wiring terminal 70 is increased, the switch is heated and provided, and the service life of the switch is influenced.

Since the switch is not instantaneously disconnected, in a critical state from on to off, if the releasing speed of the hand is infinitely slow, the first silver contact 90 on the first movable contact 60 and the first silver contact 90 on the first connecting terminal 70 are separated for an infinite time, and the time for pulling the arc when the contacts are disconnected is also infinite, the contacts are burnt and damaged by the arc, so that the product is damaged.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a switch break-make electricity wiring subassembly, the time of drawing electric arc when having reduced the disconnection between the contact has strengthened switch arc extinguishing ability, improves the life of product, can effectively solve the problem in the background art.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model provides a switch break-make electricity wiring subassembly, include:

the bracket is riveted on the N1 wiring terminal to form a seesaw type lever structure with the movable contact piece;

the moving contact is a movable fulcrum of the lever and can slide up and down on the lever fulcrum of the bracket;

the handle is arranged at one end of the movable contact frame, and the other end of the movable contact frame is connected with the movable contact;

one side of the silver contact is connected with the movable contact spring;

the contact spring is arranged on one side of the moving contact;

and the reset spring is arranged below the contact spring.

As a preferable scheme, when the movable contact slides over the fulcrum position of the lever during use, the movable contact tilts towards the silver contact end to drive the silver contact on the movable contact to be in contact with the silver contact on the N2 wiring terminal, so that the switch is closed.

As a preferable scheme, when the switch is not used, the return spring pushes against the movable contact frame to drive the movable contact to move towards the other end of the silver contact, and when the movable contact slides over a lever fulcrum on the support, the movable contact tilts towards the other end of the silver contact to separate the silver contact on the movable contact from the silver contact on the N2 wiring terminal, so that the switch is disconnected.

The utility model discloses in the one or more technical scheme that provides, following technological effect or advantage have at least:

1. the switch ensures that the silver contact on the movable contact piece and the silver contact on the wiring terminal can be quickly switched on and off by a lever structure, the movable contact can quickly act as soon as the movable contact passes through a lever fulcrum, the speed influence of manual operation is avoided, the time of arc pulling when the contacts are switched off is reduced, the arc extinguishing capability of the switch is enhanced, and the service life of a product is prolonged.

2. When the switch is disconnected and is switched from a closed state to an on-off critical state, the compression distance of the contact spring is unchanged, namely the pressure P1 applied to the movable contact piece through the movable contact is unchanged, so that the contact pressure among the silver contacts is unchanged, the contact resistance cannot be reduced along with the shortening of the moving distance of the movable contact to the lever fulcrum direction, and the heating increase of the switch is prevented.

3. The switch is switched from the bipolar on-off state to the unipolar on-off state, so that the space is saved, and the bridge structure of the old product is conveniently designed into a lever structure. Not only the quality stability of the product is improved, but also the material cost is saved by about 30 percent.

4. In order to increase the safety performance of the switch in the abnormal condition (for example, the contacts are slightly adhered due to burning of multiple normal on-off arcs, the P1 disconnection pressure is insufficient, and the switch cannot be normally disconnected), a forced interference part is added at the diagram position of the movable contact frame, under the abnormal condition, the pressure Pa generated by a reset spring is propped against the tilting tail part of the movable contact piece through the forced interference part, and under the double action of the Pa and the P1, the movable contact piece is forced to do lever tilting action, so that the forced disconnection between the silver contacts is realized.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic diagram of a prior art switch make-break electrical connection assembly in the make-break current off state.

Fig. 2 is a schematic diagram of the on-off current-off critical state of a conventional switch make-and-break electrical connection assembly.

Fig. 3 is a schematic diagram of the on/off current closed state of a prior art switch on/off electrical wiring assembly.

Fig. 4 is a schematic diagram of the on-off state and the off-state current of the switch on-off electric connection assembly in the embodiment of the present invention.

Fig. 5 is a schematic diagram of the on-off current-off critical state of the switch on-off electrical connection assembly according to the embodiment of the present invention.

Fig. 6 is a schematic diagram of the on-off current closed state of the switch on-off electric connection assembly in the embodiment of the present invention.

Reference numbers in the figures: 14. a support; an N1 terminal; 13. a movable contact spring; 9. a moving contact; 11. a handle; 7. a movable contact frame; 6. a silver contact; 17. a return spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and 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 "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

For better understanding of the above technical solutions, the following detailed descriptions will be provided in conjunction with the drawings and the detailed description of the present invention.

Example (b):

referring to fig. 1-3, the present embodiment provides a switch make/break electrical connection assembly, including: the bracket 14 is riveted on the N1 wiring terminal 15 to form a seesaw type lever structure with the movable contact piece 13;

the moving contact 9 is a movable fulcrum of the lever and can slide up and down on the fulcrum of the lever of the bracket 14;

the handle 11 is arranged at one end of the movable contact frame 7, and the other end of the movable contact frame 7 is connected with the movable contact 9;

the silver contact 6, one side of the said silver contact 6 is connected with moving contact 13;

the contact spring 8, the said contact spring 8 is set up in one side of the said moving contact 9;

and the return spring 17 is arranged below the contact spring 8, and the return spring 17 is arranged below the contact spring.

When the switch on-off electrical connection assembly provided by this embodiment is used, when the moving contact 9 slides over the lever fulcrum position, the moving contact 13 tilts towards the end of the silver contact 6, and the silver contact 6 on the moving contact 13 is driven to contact with the silver contact 6 on the N2 connection terminal 18, so as to close the switch.

In the switch on-off electrical connection assembly provided by this embodiment, when the switch is not in use, the return spring 17 abuts against the moving contact frame 7 to drive the moving contact 9 to move toward the other end of the silver contact 6, and when the moving contact 9 slides over a lever fulcrum on the bracket 14, the moving contact 13 tilts toward the other end of the silver contact 6 to separate the silver contact 6 on the moving contact 13 from the silver contact 6 on the N2 connection terminal 18, so as to achieve switch off.

The specific using process is as follows: the bracket 14 is riveted on the N1 wiring terminal 15 to form a seesaw type lever structure with the movable contact piece 13, the movable contact 9 is a movable fulcrum of the lever, can slide up and down on a lever fulcrum of the bracket 14, when a hand presses the handle 11, the movable contact 9 on the movable contact frame 7 is driven to move towards one end of the silver contact 6 of the movable contact piece 13, when the moving contact 9 slides over the fulcrum of the lever, the moving contact piece 13 quickly tilts towards the end of the silver contact 6 to drive the silver contact on the moving contact piece to contact with the silver contact on the connecting terminal of the N2, the switch is closed, after the hand is released, the reset spring 17 pushes against the moving contact frame 7 to drive the moving contact 9 to move towards the other end of the silver contact 6, when the moving contact 9 slides over the lever fulcrum of the bracket 14, the moving contact piece 13 quickly tilts towards the other end of the silver contact 6, so that the silver contact 6 on the moving contact piece 13 is separated from the silver contact 6 on the connecting terminal 18 of the N2, and the disconnection of the switch is realized;

the switch ensures that the silver contact 6 on the movable contact piece 13 and the silver contact 6 on the connecting terminal 18 of the N2 can be quickly switched on and off by a lever structure, the movable contact 9 can quickly act as long as passing through a lever fulcrum, the influence of the speed of manual operation is avoided, the time of arc pulling when the contacts are switched off is reduced, the arc extinguishing capability of the switch is enhanced, and the service life of a product is prolonged; when the switch is disconnected and the on-off critical state is reached from the closed state, the compression distance of the contact spring 8 is unchanged, namely the pressure P1 exerted on the movable contact piece 13 by the movable contact 9 is unchanged, so that the contact pressure between silver contacts is unchanged, the contact resistance is not reduced along with the shortening of the moving distance of the movable contact 9 towards the fulcrum of the lever, and the heating increase of the switch is prevented; the switch is switched from the bipolar on-off state to the unipolar on-off state, so that the space is saved, and the bridge structure of the old product is conveniently designed into a lever structure. Not only the quality stability of the product is improved, but also the material cost is saved by about 30 percent; in order to increase the safety performance of the switch in the abnormal condition (for example, the contacts are slightly adhered due to burning of multiple normal on-off arcs, the P1 breaking pressure is insufficient, and the switch cannot be normally broken), a forced interference part is added at the position shown in the figure of the movable contact frame 7, under the abnormal condition, the pressure Pa generated by the reset spring 17 is propped against the tilting tail part of the movable contact piece 13 through the forced interference part, and under the double action of Pa and P1, the movable contact piece 13 is forced to do lever tilting action, so that the silver contacts are forcibly disconnected.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A switch make-and-break electrical connection assembly, comprising: the method comprises the following steps:

the bracket (14) is riveted on the N1 wiring terminal (15) to form a seesaw type lever structure with the movable contact (13);

the moving contact (9) is a movable fulcrum of the lever and can slide up and down on the lever fulcrum of the bracket (14);

the handle (11) is arranged at one end of the movable contact frame (7), and the other end of the movable contact frame (7) is connected with the movable contact (9);

the silver contact (6), one side of the silver contact (6) is connected with the movable contact spring (13);

the contact spring (8), the said contact spring (8) is set up in one side of the said moving contact (9);

a return spring (17), wherein the return spring (17) is arranged below the contact spring (8).

2. The switch make-and-break electrical connection assembly as claimed in claim 1, wherein: when the switch is used, when the moving contact (9) slides over the position of a lever fulcrum, the moving contact (13) tilts towards the end of the silver contact (6) to drive the silver contact (6) on the moving contact (13) to be in contact with the silver contact (6) on the connecting terminal (18) of N2, so that the switch is closed.

3. The switch make-and-break electrical connection assembly as claimed in claim 2, wherein: when the device is not used, the reset spring (17) abuts against the movable contact frame (7) to drive the movable contact (9) to move towards the other end of the silver contact (6), when the movable contact (9) slides through a lever fulcrum on the support (14), the movable contact (13) tilts towards the other end of the silver contact (6) to form the separation of the silver contact (6) on the movable contact (13) and the silver contact (6) on the N2 wiring terminal (18), and the disconnection of a switch is realized.