CN211350475U

CN211350475U - Double-switch protection mechanism

Info

Publication number: CN211350475U
Application number: CN201922094015.XU
Authority: CN
Inventors: 庄士春
Original assignee: PACIFIC ELECTRONIC (KUNSHAN) CO Ltd
Current assignee: PACIFIC ELECTRONIC (KUNSHAN) CO Ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-08-25
Anticipated expiration: 2029-11-28

Abstract

The utility model discloses a two switch protection mechanisms, include: the top cover, the disc, the support cover, the shell, the ejector rod, the elastic piece component, the still piece component and the terminal; a supporting cover is arranged above the shell; a disc is arranged above the supporting cover; a top cover is arranged above the disc and matched with the supporting cover; the shell is internally provided with two fixing parts which are centrosymmetric relative to the center point of the shell; the fixed part is provided with a still piece assembly; one side of each of the two fixing parts is provided with a concave chamber; the concave chamber is provided with a spring plate assembly, and the spring plate assembly is matched with the ejector rod; the ejector rod penetrates through the support cover and the shell, two support lugs are arranged on two sides of the ejector rod, and the support lugs of the ejector rod are positioned in the concave chamber; and a terminal is arranged below the shell. This temperature controller of two sets of temperatures of device simultaneous control, duplicate protection, it is safer, adopt two contacts, two dishes mode, simple structure saves the cost, convenient to use.

Description

Double-switch protection mechanism

Technical Field

The utility model belongs to the technical field of the switch technique and specifically relates to a two switch protection mechanisms are related to.

Background

The double-pole double-throw temperature control switch is a temperature controller for simultaneously controlling two groups of temperatures, and can be used on equipment needing double protection, such as an agricultural product dryer, a clothes management machine and the like. When the temperature rises to the standard action temperature, the bimetallic strip is heated to generate internal stress snap, the push rod is pushed to rapidly open the contact, and when the temperature is reduced to the design temperature, the contact returns to the closed state to achieve the effect of connecting a circuit, so that the function of protecting a product is achieved. The double-pole double-throw temperature control switch pushes two groups of contacts through two groups of bimetallic strips to control the disconnection or connection of two groups of circuits, and is a double-protection switch. The defects and shortcomings of the prior art are as follows: 1. the existing temperature controller cannot control the connection or disconnection of two lines at the same time. 2. The existing temperature controller has single protection control, and two temperature controllers are required to play double protection roles.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two switch protection mechanisms.

To achieve the above object, the present invention adopts the following:

a dual switch protection mechanism comprising: the top cover, the disc, the support cover, the shell, the ejector rod, the elastic piece component, the still piece component and the terminal; a supporting cover is arranged above the shell; a disc is arranged above the supporting cover; a top cover is arranged above the disc and matched with the supporting cover; the shell is internally provided with two fixing parts which are centrosymmetric relative to the center point of the shell; the fixed part is provided with a still piece assembly; one side of each of the two fixing parts is provided with a concave chamber; the concave chamber is provided with a spring plate assembly, and the spring plate assembly is matched with the ejector rod; the ejector rod penetrates through the support cover and the shell, two support lugs are arranged on two sides of the ejector rod, and the support lugs of the ejector rod are positioned in the concave chamber; and a terminal is arranged below the shell.

Preferably, the stator assembly comprises a stator and a stator contact; the static sheet is arc-shaped; one end of the static sheet is arranged on the fixing part, and the other end of the static sheet is provided with a static sheet contact; the static sheet contact is arranged on the static sheet through a fixing piece.

Preferably, the spring plate assembly comprises a spring plate and a spring plate contact; the elastic sheet is arranged on the support lug of the ejector rod through a fixing piece; the elastic sheet contact is arranged on the elastic sheet through the fixing piece, and the elastic sheet contact corresponds to the static sheet contact.

Preferably, the fixing piece is a rivet, the rivet has a good fixing effect, is not easy to fall off, and is widely applied to electrical devices.

Preferably, the disc includes an automatic type disc and a manual reset type disc; the automatic disc and the manual reset disc have the same area and are superposed on the top end of the ejector rod. The two disks are respectively responsible for manual reset and temperature sensing automatic reset.

Preferably, the terminal is L-shaped, and a connecting portion is provided on a short side of the terminal; the connecting part penetrates through the shell and is fixed at the bottom of the shell.

The utility model has the advantages of it is following:

1. this device controls the temperature controller of two sets of temperatures simultaneously, duplicate protection, it is safer.

2. The device adopts a double-contact and double-disk mode, has a simple structure, saves cost and is convenient to use.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Fig. 1 is a schematic view of a dual-switch protection mechanism of the present invention.

Fig. 2 is a schematic view of a two-switch protection mechanism of the present invention.

In the figures, the various reference numbers are:

1-top cover, 2-disc, 21-automatic disc, 22-manual reset disc, 3-support cover, 4-shell, 41-fixed part, 42-concave chamber, 5-top rod, 51-support lug, 6-spring component, 61-spring, 62-spring contact, 7-static component, 71-static, 72-static contact, 8-terminal, 81-connecting part, and 9-fixing part.

Detailed Description

In order to illustrate the invention more clearly, the invention is further described below with reference to preferred embodiments. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" 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 stated or limited, the terms "mounted," "connected" and "disposed" are to be construed broadly, and may for example be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 2, a dual switch protection mechanism includes: the device comprises a top cover 1, a disc 2, a support cover 3, a shell 4, a mandril 5, an elastic piece component 6, a still piece component 7 and a terminal 8;

a supporting cover 3 is arranged above the shell 4, a disc 2 is arranged above the supporting cover 3, the disc 2 comprises an automatic disc 21 and a manual reset disc 22, wherein the automatic disc 21 and the manual reset disc 22 have the same area and are arranged on the top end of the push rod 5 in an overlapping mode. A top cover 1 is arranged above the discs 2, a support cover 3 is sleeved in the top cover 1, and the two discs 2 are pressed simultaneously.

Further, the inside of the housing 4 has two fixing portions 41, and the two fixing portions 41 are centrosymmetric with respect to a center point of the housing 4. The fixed part 41 is provided with a static piece assembly 7, the static piece assembly 7 comprises a static piece 71 and a static piece contact 72, the static piece 71 is arc-shaped, one end of the static piece 71 is arranged on the fixed part 41, and the other end of the static piece 71 is provided with the static piece contact 72; the stationary contact 72 is provided on the stationary plate 71 via the fixing member 9.

Further, one side of two fixed parts 41 all is provided with alcove 42, and alcove 42 is provided with shell fragment subassembly 6, and shell fragment subassembly 6 includes shell fragment 61 and shell fragment contact 62, and shell fragment 61 passes through mounting 9 and sets up on journal stirrup 51 of ejector pin 5, and shell fragment contact 62 passes through mounting 9 and sets up on shell fragment 61, and shell fragment contact 62 is corresponding with still contact 72.

Further, the top rod 5 penetrates through the supporting cover 3 and the shell 4, two support lugs 51 are arranged on two sides of the top rod 5, and the support lugs 51 of the top rod 5 are positioned in the concave chamber 42;

further, a terminal 8 is provided below the housing 4, the terminal 8 is L-shaped, and a connection portion 81 is provided on a short side of the terminal 8, the connection portion 81 penetrates through the housing 4 and is fixed to the bottom of the housing 4.

Further, the fixing members 9 are all rivets.

The working principle of the device is as follows: at first, still contact 72 and shell fragment contact 62 contact, the switch is in operating condition, and the electric current can make the temperature rise when passing through still contact 72 and shell fragment contact 62, and when the temperature rose to operating temperature, still 71 and shell fragment 61 were heated and produced the internal stress, carried out the kick to promote ejector pin 5, make still contact 72 and shell fragment contact 62 separate, cut off the electric current, wait that the temperature reduces, still 71 and shell fragment 61 reconversion can switch on the electric current, continue to heat.

Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it is obvious for those skilled in the art to make other variations or changes based on the above descriptions, and all the embodiments cannot be exhausted here, and all the obvious variations or changes that belong to the technical solutions of the present invention are still in the protection scope of the present invention.

Claims

1. A dual switch protection mechanism, comprising: the top cover, the disc, the support cover, the shell, the ejector rod, the elastic piece component, the still piece component and the terminal; a supporting cover is arranged above the shell; a disc is arranged above the supporting cover; a top cover is arranged above the disc and matched with the supporting cover;

the shell is internally provided with two fixing parts which are centrosymmetric relative to the center point of the shell; the fixed part is provided with a still piece assembly; one side of each of the two fixing parts is provided with a concave chamber; the concave chamber is provided with a spring plate assembly, and the spring plate assembly is matched with the ejector rod; the ejector rod penetrates through the support cover and the shell, two support lugs are arranged on two sides of the ejector rod, and the support lugs of the ejector rod are positioned in the concave chamber; and a terminal is arranged below the shell.

2. A dual switch protection mechanism according to claim 1, wherein said stator assembly includes a stator and a stator contact; the static sheet is arc-shaped; one end of the static sheet is arranged on the fixing part, and the other end of the static sheet is provided with a static sheet contact; the static sheet contact is arranged on the static sheet through a fixing piece.

3. The dual-switch protection mechanism of claim 2, wherein the spring assembly includes a spring and a spring contact; the elastic sheet is arranged on the support lug of the ejector rod through a fixing piece; the elastic sheet contact is arranged on the elastic sheet through the fixing piece, and the elastic sheet contact corresponds to the static sheet contact.

4. A dual switch protection mechanism according to claim 3, wherein said fasteners are rivets.

5. The dual switch protection mechanism of claim 1, wherein said disks include an automatic type disk and a manual reset type disk; the automatic disc and the manual reset disc have the same area and are superposed on the top end of the ejector rod.

6. A dual switch protection mechanism according to claim 1, wherein said terminal is L-shaped and provided with a connection portion on a short side of the terminal; the connecting part penetrates through the shell and is fixed at the bottom of the shell.