CN220065469U - Duplex micro-switch - Google Patents

Abstract

The utility model discloses a duplex micro-switch, which comprises a shell, wherein the shell consists of an upper cover, a middle shell and a bottom shell which are connected with each other side by side, a first switch component is arranged in a formed space between the upper cover and the middle shell, and a second switch component is arranged in a formed space between the middle shell and the bottom shell; the first switch assembly and the second switch assembly comprise a normally closed terminal, a normally open terminal and a COM terminal which are sequentially arranged at the first end of the shell side by side, and fixed contacts are arranged at the inner side ends of the normally closed terminal and the normally open terminal; the first switch component and the second switch component further comprise a button arranged at the second end of the shell and a reed positioned in the shell, the first end of the reed extends to the lower side of the button, an elastic piece connected with the shell is arranged at the lower side of the first end of the reed, and a movable contact extending into the space between the two fixed contacts is arranged at the second end of the reed. The utility model can solve the technical problems that two micro switches are required to be installed for controlling two circuits and the occupied space is compared in the prior art.

Description

Duplex micro-switch

Technical Field

The utility model relates to the field of micro switches, in particular to a duplex micro switch.

Background

The micro-switch is a switch component commonly used at present, specifically, the micro-switch is a mechanism which has a tiny contact interval and a quick-action mechanism and performs a switch action by a specified force, the micro-switch is covered by a shell, and the outer part of the micro-switch is provided with a driving rod, so the micro-switch is called a sensitive switch because the contact interval of the micro-switch is smaller. The existing general single-link control is that if two circuits need to be controlled, two micro switches need to be installed, and the occupied space is compared, so that the setting of integrated control is not facilitated.

Disclosure of Invention

The utility model provides a duplex micro-switch, which can solve the technical problem that two micro-switches are required to be installed for controlling two circuits in the prior art and occupy a relatively large space.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the double micro-switch comprises a shell, wherein the shell consists of an upper cover, a middle shell and a bottom shell which are connected side by side, a first switch component is arranged in a formed space between the upper cover and the middle shell, and a second switch component is arranged in a formed space between the middle shell and the bottom shell; the first switch assembly and the second switch assembly comprise a normally closed terminal, a normally open terminal and a COM terminal which are sequentially arranged at the first end of the shell side by side, and fixed contacts are arranged at the inner side ends of the normally closed terminal and the normally open terminal; the first switch component and the second switch component also comprise a button arranged at the second end of the shell and a reed positioned in the shell, the first end of the reed extends to the lower side of the button, an elastic piece connected with the shell is arranged at the lower side of the first end of the reed, and a movable contact extending into the space between the two fixed contacts is arranged at the second end of the reed.

Preferably, the COM terminal has an L shape, a vertical portion thereof is provided through the reed, and a horizontal portion thereof protrudes from one end of the housing.

Preferably, the spring plate is provided with an arch spring plate, and the vertical part of the COM terminal is abutted against one end of the arch spring plate.

Preferably, at least one connecting hole is formed in the corresponding positions of the upper cover, the middle shell and the bottom shell, and the upper cover, the middle shell and the bottom shell are connected through fasteners in the connecting holes.

Compared with the prior art, the utility model has the beneficial effects that:

through setting up upper cover, well shell and drain pan formation two installation spaces side by side, just so can set up two sets of switch module, a micro-gap switch just can realize two circuits of duplex control, and overall structure is compact, convenient operation, and the sensitivity ratio of switch is higher, and the life-span is longer.

Drawings

FIG. 1 is a front cross-sectional view of the structure of the present utility model;

fig. 2 is a side view structural diagram of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

As shown in fig. 1-2, the utility model provides a duplex micro-switch, which comprises a shell, wherein the shell consists of an upper cover 1, a middle shell 3 and a bottom shell 2 which are mutually connected side by side, a first switch component is arranged in a formed space between the upper cover 1 and the middle shell 3, and a second switch component is arranged in a formed space between the middle shell 3 and the bottom shell 2; the first switch assembly and the second switch assembly comprise a normally closed terminal 7, a normally open terminal 8 and a COM terminal 11 which are sequentially arranged at the first end of the shell side by side, and fixed contacts 9 are arranged at the inner side ends of the normally closed terminal 7 and the normally open terminal 8; the first switch component and the second switch component also comprise a button 4 arranged at the second end of the shell and a reed 6 positioned in the shell, the first end of the reed 6 extends to the lower side of the button 4, an elastic piece 5 connected with the shell is arranged at the lower side of the first end of the reed 6, and a movable contact 10 extending into between two fixed contacts 9 is arranged at the second end of the reed 6.

Specifically, the upper cover 1, the middle shell 3 and the bottom shell 2 are all made of PBT materials through injection molding, and the combination of the upper cover 1, the middle shell 3 and the bottom shell can form two installation spaces and protect the first switch assembly and the second switch assembly inside.

The normally closed terminal 7, the normally open terminal 8 and the COM terminal 11 are all formed by punching brass, can be externally connected with a standard vehicle-mounted 2.8 inserting sheet or used during welding, the COM terminal 11 is a common terminal of a switch, and when in use, other terminals can normally work only when being connected with the common terminal, and the function of electrifying or cutting off is achieved; the normally closed terminal 7 is in an energized state when the switch connects this terminal with the COM terminal 11 in a free state, and is in a de-energized state when the button 4 is pressed; the normally open terminal 8 is in an off state when the switch connects this terminal with the COM terminal 11 in a free state, and is in an energized state when the button 4 is pressed.

The reed 6 is used as a part for the whole switch to play a role in restoring, and is stamped by beryllium copper to ensure good restoring force; the elastic piece 5 can be a spring, can be used as a supporting piece of the reed 6 and is made of stainless steel, and is clamped between the reed 6 and the middle shell 3 and the bottom shell 2, when the switch is switched, force is directly acted on the elastic piece, and the elastic piece drives an actuating mechanism of the reed 6 to move, so that good switching function is ensured.

The fixed contact 9 and the movable contact 10 are composed of an AgNi/Copper composite material when uniformly alternating current, which ensures a low resistance and a long electrical life of the switch.

The COM terminal 11 is L-shaped, the vertical portion of the COM terminal passes through the reed 6, the horizontal portion of the COM terminal extends out from one end of the housing, the COM terminal 11 can be firmly mounted on the middle housing 3 and the bottom housing 2, meanwhile, the reed 6 is provided with an arch spring 12, the vertical portion of the COM terminal 11 abuts against one end of the arch spring 12, and the arch spring 12 enables the sensitivity of the reed 6 to be relatively high.

For convenient assembly, at least 2 connecting holes 13 are arranged at corresponding positions on the upper cover 1, the middle shell 3 and the bottom shell 2, and the upper cover 1, the middle shell 3 and the bottom shell 2 are connected through fasteners in the connecting holes 13.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear are used in the embodiments of the present utility model) are merely for explaining the relative positional relationship, movement conditions, and the like between the components in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are changed accordingly.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.

Claims (4)

1. A duplex microswitch comprising:

the shell comprises an upper cover (1), a middle shell (3) and a bottom shell (2) which are connected side by side, wherein a first switch assembly is arranged in a formed space between the upper cover (1) and the middle shell (3), and a second switch assembly is arranged in a formed space between the middle shell (3) and the bottom shell (2);

the first switch assembly and the second switch assembly comprise a normally closed terminal (7), a normally open terminal (8) and a COM terminal (11) which are sequentially arranged at the first end of the shell side by side, and fixed contacts (9) are arranged at the inner side ends of the normally closed terminal (7) and the normally open terminal (8);

the first switch assembly and the second switch assembly further comprise a button (4) arranged at the second end of the shell and a reed (6) arranged in the shell, the first end of the reed (6) extends to the lower side of the button (4), an elastic piece (5) connected with the shell is arranged at the lower side of the first end of the reed (6), and a movable contact (10) extending into the space between the two fixed contacts (9) is arranged at the second end of the reed (6).

2. The dual micro-switch of claim 1, wherein: the COM terminal (11) is L-shaped, the vertical part of the COM terminal passes through the reed (6) to be arranged, and the horizontal part of the COM terminal extends out of one end of the shell.

3. The ganged micro-switch of claim 2, wherein: the spring leaf (6) is provided with an arch spring piece (12), and the vertical part of the COM terminal (11) is propped against one end of the arch spring piece (12).

4. The dual micro-switch of claim 1, wherein: at least 2 connecting holes (13) are formed in the corresponding positions of the upper cover (1), the middle shell (3) and the bottom shell (2), and the upper cover (1), the middle shell (3) and the bottom shell (2) are connected through fasteners in the connecting holes (13).