CN214672417U

CN214672417U - Contact mechanism with large contact area and easy assembly

Info

Publication number: CN214672417U
Application number: CN202121194316.0U
Authority: CN
Inventors: 潘晓东
Original assignee: Zhejiang Dazhan Electrical Co ltd
Current assignee: Zhejiang Dazhan Electrical Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-11-09
Anticipated expiration: 2031-05-31

Abstract

The utility model discloses a contact mechanism that area of contact is big and easily assemble, including rotating main body and contact, the contact passes through detachable connections and assembles in rotating main body, rotating main body one end is kept away from to the contact is equipped with the movable contact spring. The area of the mounting plate of the contact of the utility model is larger, which can improve the contact area of the movable contact piece and is beneficial to reducing the temperature rise of the contact mechanism on the premise of ensuring the stable connection with the movable contact piece; the contact is directly connected with the rotating body and is fixed through the fastener, so that the structure is simple, the assembly efficiency is high, the connection is stable, and the contact cannot fall off or deform even if the contact is used for a long time.

Description

Contact mechanism with large contact area and easy assembly

Technical Field

The utility model relates to a low pressure electrical technology field, concretely relates to contact mechanism that area of contact is big and easily assemble.

Background

As is well known, a contact mechanism is a mechanism for controlling the conduction of devices, and is widely applied to low-voltage electrical appliances such as lightning protection devices, circuit breakers, contactors, and the like.

As shown in fig. 2, the contact mechanism of the prior art includes a rotating body, a member connected to the rotating body, and a contact connected to the member, and the contact is generally connected to the member by welding or crimping, and is likely to fall off or deform after a long period of use, resulting in an electrical failure of an electrical appliance, and the assembly efficiency is low due to many parts during assembly.

In the contact mechanism in the prior art, due to the limitation of the integral structure, a part is required to be added between the rotating main body and the contact to weld the contact, and in order to ensure the welding strength and stability of the contact, the contact mechanism can only be welded on the side surface of the part mounting position to ensure that a larger area is provided for stabilizing the contact. This results in the effective contact area of the moving contact and the static contact being limited, so that the influence caused by the temperature rise of the contact can be reduced only by increasing the air holes or increasing the heat dissipation channels and other ways.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to solve the problem, the utility model provides a simple structure, the temperature rise is less, area of contact is big and easily the contact mechanism of assembly.

(II) technical scheme

The utility model discloses a large and easily assembled contact mechanism of area of contact, including rotating main body and contact, the contact is connected the assembly through rotating in rotating main body, rotating main body one end is kept away from to the contact is equipped with the movable contact spring.

In some embodiments, the side of the rotating body is provided with through holes for connecting contacts and a plurality of bosses for connecting parts.

In some embodiments, the bosses are each provided on two opposing planar faces of the side portion.

In some embodiments, the rotating body is provided with an extension at the other side without the boss.

In some embodiments, the extension portion is provided with a groove for mounting the clip.

In some embodiments, the side portion of the contact is provided with two mutually symmetrical connecting portions and a connecting section, and the connecting section is arranged between the connecting portion and the mounting plate and is of an integrated structure with the connecting portion and the mounting plate.

In some embodiments, a side of the connecting portion, which is away from the contact, is provided with a mounting groove which is matched and clamped with the groove.

In some embodiments, the mounting grooves on the connecting portions are equally large and at the same level.

In some embodiments, the lower part of the contact is provided with a movable contact piece, and a bent part is arranged below the movable contact piece.

In some embodiments, the bending direction of the bending part is away from an end face of the contact connected with the movable contact.

(III) advantageous effects

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

(1) the area of the mounting plate of the contact in the utility model is larger, which can improve the contact area of the movable contact piece on the premise of ensuring the stable connection with the movable contact piece, thus being beneficial to reducing the temperature rise of the contact mechanism;

(2) the utility model provides a contact is direct to be connected with rotatory main part, fixes through the fastener, and simple structure and assembly efficiency are high, connect firmly, even long-term the use also can not drop or warp.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of a contact mechanism according to embodiment 1;

FIG. 2 is a schematic diagram of a prior art contact mechanism;

FIG. 3 is a schematic perspective view (direction one) of the contact according to embodiment 1;

fig. 4 is a schematic perspective view (direction two) of the contact in embodiment 1;

FIG. 5 is a schematic perspective view (direction one) of the rotating body in embodiment 1;

FIG. 6 is a schematic perspective view (direction two) of the rotating body in example 1;

FIG. 7 is a schematic view showing an assembling structure of a rotating body in embodiment 1;

fig. 8 is a schematic perspective view of a contact according to embodiment 2;

fig. 9 is a schematic perspective view of the contact mechanism in embodiment 3 (the auxiliary contact is omitted);

fig. 10 is a schematic perspective view of a contact mechanism according to embodiment 3.

1. The rotary body comprises a rotary body 101, a boss 102, an extension part 102a, a groove 103 and a through hole;

2. the contact comprises a contact body, 2a, an additional contact body, 201, a mounting plate, 202, a movable contact piece, 203, a bending part, 204, a connecting section, 205, a connecting part, 205a, a round hole, 205b and a mounting groove;

3. a pin shaft;

4. a fastener 401, a snap-in portion;

5. and (4) components.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

As shown in fig. 1, which is a schematic perspective view of a contact mechanism with a large contact area and easy assembly according to a preferred embodiment of the present invention, the contact 2 mechanism in this embodiment includes a rotating body 1, a contact 2 rotatably connected to the rotating body 1 through a pin 3, a movable contact piece 202 connected to the contact 2 for conducting electricity with a stationary contact (not shown in the figure), and a fastening member 4 for fixing the rotating body 1 and the contact 2.

As shown in fig. 5 to 7, which are structural examples of a rotating body 1 of a contact mechanism with a large contact area and easy assembly according to a preferred embodiment of the present invention, the rotating body 1 includes a plurality of bosses 101 for connecting auxiliary components and through holes 103 for connecting contacts 2 with a matching pin 3, the bosses 101 are disposed on two opposite sides of the rotating body 1, and the bosses 101 are disposed on two opposite sides.

Furthermore, an extension part 102 is arranged on one side part without the boss 101, a groove 102a for placing the fastener 4 is arranged on the upper part of the extension part 102, the fastener 4 is conveniently clamped in a limiting manner, the contact 2 and the rotating body 1 are prevented from loosening and falling, and a clamping part 401 which is bent back is further arranged at the tail end of the fastener 4.

As shown in fig. 3 to 4, which are schematic views of a contact structure of a contact mechanism with a large contact area and easy assembly according to a preferred embodiment of the present invention, the contact 2 includes a connecting portion 205 disposed on both sides of the upper portion, and a connecting section 204, the connecting section 204 is disposed between the connecting portion 205 and the mounting plate 201, and is integrated with the connecting portion 205 and the mounting plate 201. Two circular holes 205a having the same size as the through hole 103 of the rotating body 1 are formed in the upper portion of the connecting portion 205, and the circular holes 205a are penetrating structures.

Further, the front end of the middle of the connecting portion 205 is provided with a mounting groove 205b for clamping the fastening member 4, and the mounting grooves 205b on the two connecting portions 205 are located at the same horizontal height. The lower part of the contact 2 is provided with a mounting plate 201 connected with a movable contact piece 202, and the bottom of the mounting plate 201 is provided with an inclined part which is inclined and extends towards one side of the notch of the mounting groove 205 b.

Further, the mounting plate 201 and the connecting section 204 at the upper part of the connecting portion 205 are a straight plate integrated structure.

Example 2

As shown in fig. 8, unlike embodiment 1, the mounting board 201 and the connection section 204 at the upper part of the connection portion 205 are of a bent integral structure, which is beneficial to increase the distance between the non-contact conductive members and prevent over-close arcing.

Example 3

As shown in fig. 9 to 10, unlike

embodiments

1 and 2, the two side portions of the lower portion of the rotating body 1 are respectively provided with the contact 2 and the additional contact 2a through the pin 3, the rotating body 1 can be widened according to actual requirements, and the contact 2 mechanism of the present embodiment can be applied to low-voltage electrical equipment with a large volume and requiring the use of the double contacts 2 for widening.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.

Claims

1. A contact mechanism with large contact area and easy assembly comprises a rotating body (1) and a contact (2),

the method is characterized in that:

the contact (2) is assembled on the rotating body (1) through rotating connection, and one end of the contact (2) far away from the rotating body (1) is provided with a movable contact piece (202).

2. A contact mechanism with large contact area and easy assembly according to claim 1, wherein: the side of the rotating body (1) is provided with a through hole (103) for connecting a contact (2) and a plurality of bosses (101) for connecting parts.

3. A contact mechanism with large contact area and easy assembly according to claim 2, wherein: the bosses (101) are arranged on two opposite planes of the side part.

4. A contact mechanism with large contact area and easy assembly according to claim 1 or 2, wherein: the rotating body (1) is provided with an extension part (102) at the other side part without the boss (101).

5. A contact mechanism with large contact area and easy assembly according to claim 4, wherein: the extension part (102) is provided with a groove (102a) for installing a fastener (4).

6. A contact mechanism with large contact area and easy assembly according to claim 1, wherein: the side of the upper portion of the contact (2) is provided with a connecting portion (205) and a connecting section (204) which are symmetrical to each other, and the connecting section (204) is arranged between the connecting portion (205) and the mounting plate (201) and is of an integrated structure with the connecting portion (205) and the mounting plate (201).

7. A contact mechanism with large contact area and easy assembly according to claim 6, wherein: one side, far away from the contact (2), of the connecting portion (205) is provided with a mounting groove (205b) which is matched with the groove (102a) to clamp the fastener (4).

8. A contact mechanism with large contact area and easy assembly according to claim 7, wherein: the mounting grooves (205b) on the connecting part (205) are equal in size and are at the same horizontal height.

9. A contact mechanism with large contact area and easy assembly according to claim 1 or 6, wherein: the lower part of the contact (2) is provided with a movable contact piece (202), and a bending part is arranged below the movable contact piece (202).

10. A contact mechanism with large contact area and easy assembly according to claim 9, wherein: the bending direction of the bending part is towards one side of the notch of the mounting groove (205 b).