CN216648122U

CN216648122U - Light and thin switch

Info

Publication number: CN216648122U
Application number: CN202123350948.4U
Authority: CN
Inventors: 桑伟
Original assignee: Taicang Shinmei Electronic Co ltd
Current assignee: Taicang Shinmei Electronic Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-05-31
Anticipated expiration: 2031-12-28

Abstract

The utility model discloses a light and thin switch which comprises a cover, a shell, a connecting piece, a plate spring, a button, a first terminal, a second terminal and a third terminal, wherein the first terminal, the second terminal and the third terminal are sequentially arranged on the shell and extend to the outer side of the shell, one end of the connecting piece is clamped on the first terminal, one end of the plate spring is clamped on the second terminal, the other end of the plate spring is clamped on the connecting piece, the other end of the connecting piece is provided with a contact, the contact is normally closed on the third terminal by the thrust of the plate spring, the cover is covered on the shell, and the button is arranged on the cover in a sliding mode and acts on the connecting piece. The switch is simple, reasonable and novel in structural design, and the reliable connection of the shell, the contact pieces and the plate spring is ensured by adopting a V-groove design for the terminal of the shell; beryllium copper materials are selected as the connecting pieces, so that the mechanical life of the product is greatly prolonged; the contact is made of silver-nickel alloy, so that the electrical service life of the product is greatly improved.

Description

Light and thin switch

Technical Field

The utility model relates to the field of switches, in particular to a light and thin switch.

Background

A switch is a manually controlled device that is commonly used in control mechanisms of automated equipment. Refers to an electronic component that can open a circuit, interrupt current, or cause it to flow to other circuits.

The switch usually has two pieces of metal called 'contacts', the current forms a loop when the two contacts are contacted, and the current is open when the two contacts are not contacted. Such as gas and liquid flow control, has certain corrosiveness on switch contacts, because most metals can form insulating oxides after oxidation, so that the contacts cannot work normally. In addition, for the use in a specific environment, the switch installation space is limited to a certain extent, so that the conventional customs cannot meet the use in the specific environment.

SUMMERY OF THE UTILITY MODEL

In view of the above drawbacks of the prior art, a primary object of the present invention is to overcome the disadvantages of the prior art, and to disclose a light and thin switch, which includes a cover, a housing, a contact piece, a leaf spring, a button, a first terminal, a second terminal, and a third terminal, wherein the first terminal, the second terminal, and the third terminal are sequentially disposed on the housing and extend to the outside of the housing, one end of the contact piece is clamped on the first terminal, one end of the leaf spring is clamped on the second terminal, the other end of the leaf spring is clamped on the contact piece, the other end of the contact piece is provided with a contact, the contact is normally closed on the third terminal by the pushing force of the leaf spring, the cover is covered on the housing, and the button is slidably disposed on the cover and acts on the contact piece.

Further, the leaf spring is U-shaped slice terminal to both ends extend first card portion and the second card portion of society, the second card portion with the contained angle between the leaf spring is 150.

Furthermore, a first clamping groove is concavely arranged on the left side of the first terminal, a second clamping groove is arranged on the right side of the second terminal, and the first clamping groove and the second clamping groove are in a V shape.

Further, a movable groove allowing the plate spring to move is provided on the tab.

Further, the first terminal, the second terminal, and the third terminal are integrally injection-molded with the housing.

Furthermore, the contact piece is beryllium copper, and the contact is silver-nickel alloy.

Furthermore, two tenons are arranged on two sides of the shell at intervals respectively, and round holes are formed in corresponding positions of the cover.

The utility model has the following beneficial effects:

the switch is simple, reasonable and novel in structural design, and the reliable connection of the shell, the contact pieces and the plate spring is ensured by adopting a V-groove design for the terminal of the shell; beryllium copper materials are selected as the connecting pieces, so that the mechanical life of the product is greatly prolonged; the contact is made of silver-nickel alloy, so that the electrical service life of the product is greatly improved; the shell integrated into one piece structure, the product contact position is stable, can be applied to the special place of accurate control flow.

Drawings

Fig. 1 is a schematic structural diagram of a thin and light switch according to the present invention;

fig. 2 is a schematic diagram of an internal structure of a thin and light switch;

FIG. 3 is a schematic view of the connection structure of the housing and the terminal;

FIGS. 4 and 5 are schematic structural views of the tab;

FIGS. 6 and 7 are schematic structural views of the plate spring;

FIG. 8 is a schematic diagram of the switch;

FIG. 9 is a schematic view of the structure of the cover;

the reference numbers are as follows:

1. lid, 2, shell, 3, splicing, 4, leaf spring, 5, button, 6, first terminal, 7, second terminal, 8, third terminal, 11, round hole, 21, tenon, 31, contact, 32, activity groove, 41, first card portion, 42, second card portion, 61, first draw-in groove, 71, second draw-in groove.

Detailed Description

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

A light and thin switch, as shown in fig. 1-9, comprises a cover 1, a shell 2, a connecting piece 3, a plate spring 4, a button 5, a first terminal 6, a second terminal 7 and a third terminal 8, wherein the first terminal 6, the second terminal 7 and the third terminal 8 are sequentially arranged on the shell 2 and extend to the outer side of the shell 2, and the connecting piece 3 and the plate spring 4 are both of sheet structures; one end of the contact piece 3 is clamped on the first terminal 6, one end of the plate spring 4 is clamped on the second terminal 7, the other end of the plate spring 4 is clamped on the contact piece 3, the contact 31 is arranged at the other end of the contact piece 3, the contact 31 is normally closed on the third terminal 8 by the pushing force of the plate spring 4, and meanwhile, the third terminal 8 is used as the other supporting point of the contact piece 3 to limit the normally closed position of the contact piece 3. The lid 1 is closed on the housing 2 and the button 5 is slidingly arranged on the lid 1 and acts on the tab 3. By pressing the tab 3, the tab 3 is controlled to rotate downward about the click point on the first terminal 6 so that the contact 31 is away from the contact of the third terminal 8. And, stop when the contact piece 3 rotates downwards and contacts with the second terminal 7, in order to limit the range of putting the contact piece 3, prevent the contact piece 3 from separating from the leaf spring 4 or the contact piece angle changes to cause the contact piece 3 can't reset.

In one embodiment, as shown in fig. 1 to 9, the plate spring 4 is a U-shaped plate terminal, and two ends of the U-shaped plate terminal extend to form a first clamping portion 41 and a second clamping portion 42, the second clamping portion 42 and the plate spring 4 form an included angle of 150 °, and the plate spring is stably connected with the connecting piece 3 through the second clamping portion 42.

In one embodiment, as shown in fig. 1-9, the left side of the first terminal 6 is recessed with a first card slot 61, the right side of the second terminal 7 is disposed with a second card slot 71, and the first card slot 61 and the second card slot 71 are "V" shaped. And the V-shaped groove is adopted for design and is respectively connected with the connecting piece 3 and the plate spring 4. The connection mode is simple to install, stable and reliable, and the connection position of the connecting piece 3 and the plate spring 4 can be ensured to be stable through multiple actions; in addition, the connection tab 3 can be stabilized by inclining the leaf spring 4 by 150 ° on the connection tab 3 side. Through the two connection modes, the shell 2, the connecting sheet 3 and the plate spring 4 are connected with each other to form a stable connecting body. Practical life verifies that the structure can reach more than 100 ten thousand mechanical lives.

In one embodiment, as shown in fig. 1-9, the tab 3 is provided with a movable slot 32 that allows the leaf spring 4 to move.

In one embodiment, as shown in fig. 1-9, the first terminal 6, the second terminal 7, and the third terminal 8 are integrally injection molded with the housing 3. The shell 2 manufactured by the method has high terminal strength and stable contact position, ensures that the deviation between the closed position of the loop when a product presses the button 5 and the released position of the loop when the button 5 is released is very small, and can be used in application places where gas and liquid accurately calculate flow.

In one embodiment, as shown in fig. 1-9, tab 3 is beryllium copper, which has a good combination of properties. The contact 31 is silver nickel alloy. The alloy has the advantages of low resistivity, good conductivity and no arcing of pure silver, and simultaneously has the advantages of high temperature resistance, no abrasion and oxidation resistance of the alloy, and can ensure that the product has an electrical life of more than 10 thousands of times under the condition of large current.

In one embodiment, as shown in fig. 1-9, two tenons 21 are disposed at two sides of the housing 2 at intervals, and a circular hole 11 is disposed at a corresponding position of the cover 1. The assembly method is simple, the operation efficiency is high, and the product is stably and tightly matched.

The above are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; it is intended that the following claims be interpreted as including all such alterations, modifications, and equivalents as fall within the true spirit and scope of the utility model.

Claims

1. A light and thin switch is characterized by comprising a cover, a shell, a connecting piece, a plate spring, a button, a first terminal, a second terminal and a third terminal, wherein the first terminal, the second terminal and the third terminal are sequentially arranged on the shell and extend to the outer side of the shell, one end of the connecting piece is clamped on the first terminal, one end of the plate spring is clamped on the second terminal, the other end of the plate spring is clamped on the connecting piece, the other end of the connecting piece is provided with a contact, the contact is normally closed on the third terminal by the pushing force of the plate spring, the cover covers the shell, and the button is arranged on the cover in a sliding mode and acts on the connecting piece.

2. The thin and light switch as claimed in claim 1, wherein the plate spring is a U-shaped plate terminal, and has a first engaging portion and a second engaging portion extending from both ends, and the second engaging portion forms an angle of 150 ° with the plate spring.

3. The thin and light switch according to claim 1, wherein a first slot is recessed on a left side of the first terminal, a second slot is recessed on a right side of the second terminal, and the first slot and the second slot are "V" shaped.

4. The thin and light type switch as claimed in claim 1, wherein a moving groove allowing the plate spring to move is provided on the contact piece.

5. The thin and light switch of claim 1, wherein the first terminal, the second terminal, and the third terminal are integrally injection molded with the housing.

6. A thin and light weight switch as claimed in claim 1 wherein the tab is beryllium copper and the contact is silver nickel alloy.

7. The thin and light switch as claimed in claim 1, wherein two tenons are disposed on two sides of the housing at an interval, and a circular hole is disposed at a corresponding position of the cover.