CN215496408U

CN215496408U - Switch with movable contact bridge base

Info

Publication number: CN215496408U
Application number: CN202121865582.1U
Authority: CN
Inventors: 吴利军; 涂来发; 穆茂林; 彭武忠; 胡伊特; 胡伊达; 张彭春
Original assignee: Radin Electric Technology Co ltd
Current assignee: Radin Electric Technology Co ltd
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2022-01-11
Anticipated expiration: 2031-08-10

Abstract

The utility model relates to a switch with movable contact bridge seat, the movable contact bridge of fixed mounting more than one on the movable contact bridge seat, the movable contact bridge can form electric bridging with first static contact, the second static contact, the inboard of movable contact bridge seat sets up the mounting, the mounting forms more than one fixed slot that is used for installing the movable contact bridge with the inner wall of movable contact bridge seat, lie in the keyway in the fixed slot on the mounting, the keyway be used for with the key adaptation on the movable contact bridge, set up the spring between the axle inboard of mounting and movable contact bridge seat. The springs act on the movable contact bridges in a unified mode through the fixing pieces, the stress of the movable contact bridges can be effectively guaranteed to be even, and the consistency of the connecting resistance of the multiple groups of contacts is guaranteed.

Description

Switch with movable contact bridge base

Technical Field

The utility model relates to a switch with movable contact bridge seat.

Background

The contact connection types of electrical switches are various, wherein a bridge connection is one of the main connection types. When the moving contact bridge of the switch has more than one moving contact bridge, whether single-phase or multi-phase, a moving contact bridge seat capable of ensuring the consistent movement of a plurality of moving contact bridges is needed. The traditional movable contact bridge seat is only provided with a spring in a fixed groove of the movable contact bridge seat, and the movable contact bridge is pressed to static contact pieces at two ends so as to keep electrical connection. The drawbacks of such a switch are: the reliability of electrical connection has high requirements on the elastic coefficient of the springs, and the elastic coefficients of the springs have discreteness, so that the movable contact bridges and the static contact pieces at two ends cannot be reliably guaranteed to have consistent connection resistance.

Disclosure of Invention

In view of this, the present invention provides a switch with a movable contact bridge seat, which has a simple structure, wherein a fixing member is disposed on the movable contact bridge seat, and a plurality of springs act on a plurality of movable contact bridges through the fixing member in a unified manner, so as to ensure that the connection resistances of a plurality of sets of contacts are consistent.

In order to achieve the above object, the present invention adopts such a switch with a movable contact bridge base, the movable contact bridge base on fixedly install more than one movable contact bridge, the movable contact bridge can form an electrical bridge with a first fixed contact and a second fixed contact, the inner side of the movable contact bridge base sets up a fixing member, the fixing member and the inner wall of the movable contact bridge base form more than one fixing groove for installing the movable contact bridge, the fixing groove in the fixing member has a key groove, the key groove is used for being matched with a key on the movable contact bridge, and a spring is arranged between the fixing member and the inner shaft side of the movable contact bridge base.

Compared with the prior art, the invention has the beneficial technical effects that: through the setting of above structure, a plurality of springs pass through the mounting and act on a plurality of movable contact bridges in unison, can guarantee effectively that the atress of a plurality of movable contact bridges is even, guarantee that the connecting resistance that multiunit contact is connected is unanimous.

In particular, a slot orthogonal to the side wall extends out of the side wall of the movable contact bridge seat, and the fixed part is provided with a guide plate which can be inserted into the slot. Through the arrangement of the structure, the position of the fixing piece in the movable contact bridge seat can be placed to be inclined, and the uniform stress of a plurality of movable contact bridges is further ensured.

Particularly, the shaft side of the movable contact bridge seat is provided with a hinge groove, and the connecting rod is hinged in the hinge groove.

Particularly, the switch with the movable contact bridge base comprises a quick breaking mechanism, the quick breaking mechanism comprises a handle, a transmission part and a connecting rod which are sequentially connected, the connecting rod is connected to the movable contact bridge base, the handle rotates around a hinged shaft, an arc-shaped groove is formed in the transmission part, one end of a spring support is fixedly hinged to the side wall of the shell, the other end of the spring support is arranged on a shaft in a penetrating mode, the driven end of the handle and the transmission part are sequentially arranged on the outer side of the other end of the spring support in a penetrating mode, a second spring is sleeved on the outer side of the spring support, and the shaft extends out of the arc-shaped groove. The quick breaking mechanism acts on the movable contact bridge through the movable contact bridge seat, so that the electrical performance of the switch is better.

Drawings

FIG. 1 is a structural diagram of a movable contact bridge seat in the embodiment of the present invention;

FIG. 2 is a structural diagram of the movable contact bridge seat and the movable contact bridge assembly in the embodiment of the present invention;

fig. 3 is a structural view of the switch with the movable contact bridge base according to the present embodiment, with a side plate removed.

In the figure: 1. a handle; 2. a transmission member; 21. hinging a shaft; 3. a shaft; 4. a first fixed contact; 5. a second fixed contact; 6. a first spring; 7. a movable contact bridge seat; 71. a boss; 72. a fixing member; 721. a keyway; 722. a guide plate; 73. fixing grooves; 74. a hinge slot; 75. a slot; 8. a movable contact bridge; 9. a spring support; 10. a second spring; 11. a connecting rod.

Detailed Description

As shown in fig. 1 to 3, a switch having a movable contact bridge base, wherein more than one movable contact bridge 8 is fixedly mounted on the movable contact bridge base 7, the movable contact bridge 8 can form an electrical bridge with a first fixed contact 4 and a second fixed contact 5, a fixing member 72 is disposed inside the movable contact bridge base 7, more than one fixing groove 73 for mounting the movable contact bridge 8 is formed on the fixing member 72 and the inner wall of the movable contact bridge base 7, a key groove 721 is disposed on the fixing member 72 in the fixing groove 73, the key groove 721 is adapted to a key on the movable contact bridge 8, and a spring is disposed between the fixing member 72 and the inner side of a shaft of the movable contact bridge base 7.

The side wall of the movable contact bridge seat 7 extends with a slot 75 orthogonal to the side wall, and the fixed member 72 has a guide plate 722, and the guide plate 722 can be inserted into the slot 75.

The movable contact bridge base 7 has a hinge groove 74 at an axial side thereof, and the link lever 11 is hinged in the hinge groove 74.

Switch with movable contact bridge seat is including dividing disconnected mechanism soon, divide disconnected mechanism soon including the handle 1 that connects gradually, driving medium 2 and connecting rod 11, connecting rod 11 connects to movable contact bridge seat 7, handle 1 is rotatory round articulated shaft 21, set up the arc wall on the driving medium 2, the one end of fixed articulated spring bracket 9 on the lateral wall of casing, axle 3 is worn to arrange in to the other end of spring bracket 9, the outside of the other end of spring bracket 9 is worn to arrange in proper order in to handle 1's driven end and driving medium 2, second spring 10 is established to spring bracket 9's outside cover, axle 3 extends out from the arc wall.

Claims

1. A switch with a movable contact bridge seat is characterized in that more than one movable contact bridge is fixedly arranged on the movable contact bridge seat, and the movable contact bridge can form electrical bridging with a first fixed contact and a second fixed contact, and is characterized in that: the inner side of the movable contact bridge seat is provided with a fixing piece, the fixing piece and the inner wall of the movable contact bridge seat form more than one fixing groove for mounting the movable contact bridge, a key groove is formed in the fixing piece in the fixing groove and used for being matched with a key on the movable contact bridge, and a spring is arranged between the fixing piece and the inner side of the shaft of the movable contact bridge seat.

2. The switch with a moving bridge mount of claim 1, wherein: the side wall of the movable contact bridge seat extends to form a slot orthogonal to the side wall, the fixing piece is provided with a guide plate, and the guide plate can be connected into the slot.

3. The switch with a moving bridge mount of claim 2, wherein: the shaft side of the movable contact bridge seat is provided with a hinge groove, and the connecting rod is hinged in the hinge groove.

4. A switch with a moving bridge mount as claimed in claim 1, 2 or 3, wherein: the switch with the movable contact bridge seat comprises a quick breaking mechanism, the quick breaking mechanism comprises a handle, a transmission part and a connecting rod which are sequentially connected, the connecting rod is connected to the movable contact bridge seat, the handle rotates around a hinged shaft, an arc-shaped groove is formed in the transmission part, one end of a hinged spring support is fixed on the side wall of the shell, the other end of the spring support penetrates through the shaft, the driven end of the handle and the transmission part penetrate through the outer side of the other end of the spring support in sequence, a second spring is sleeved on the outer side of the spring support, and the shaft extends out of the arc-shaped groove.