CN219180417U

CN219180417U - Moving contact and contact structure

Info

Publication number: CN219180417U
Application number: CN202223358106.8U
Authority: CN
Inventors: 黄文平
Original assignee: Zhejiang Chint Electrical Electric Co ltd
Current assignee: Zhejiang Chint Electrical Electric Co ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-06-13
Anticipated expiration: 2032-12-13

Abstract

The utility model discloses a moving contact and a contact structure, wherein the moving contact comprises a body, a through groove and arc-shaped parts are arranged on one side of the body facing a fixed contact, and the through groove is positioned between two adjacent arc-shaped parts; the utility model has good electrical connection effect and good heat dissipation effect.

Description

Moving contact and contact structure

Technical Field

The utility model relates to a moving contact and a contact structure.

Background

In a high-current isolating switch, a moving contact is arranged on a sliding plate, and the moving contact is driven by the movement of the sliding plate, so that the effects of closing and opening are realized. The existing moving contact is of a cylindrical structure, and the moving contact and the fixed contact are in point connection. Along with technological development, the isolating switch is increasingly used in direct current voltage, and along with the occurrence of problems, the contact area between the moving contact and the fixed contact is smaller due to point connection, and the electrical connection performance is poorer when the direct current voltage with large current passes through. After the contact area is increased, the surface is formed to be attached to the surface, so that the problem is solved, the friction resistance is high, the sliding is inconvenient, and the heat dissipation effect is poor.

Disclosure of Invention

The utility model mainly solves the technical problem of providing a moving contact and a contact structure.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a moving contact and a contact structure comprise a body, wherein a through groove and arc-shaped parts are arranged on one side of the body facing a fixed contact, and the through groove is positioned between two adjacent arc-shaped parts.

By adopting the structure, in the matching process of the moving contact and the fixed contact, the effect of multipoint connection is formed, the electrical connection efficiency between the moving contact and the fixed contact is improved, and meanwhile, the ventilation and heat dissipation effects are formed by adopting the through groove, and the heat dissipation effect in the use process is improved.

Wherein, be equipped with the through-hole on the body is kept away from static contact one side, through-hole and logical groove intercommunication.

The arrangement of the through holes is adopted, so that the movable contact is more convenient in the installation and fixation process.

Wherein, the body is integrated into one piece setting.

The integrated into one piece sets up for the moving contact processing is more convenient.

The utility model provides a contact structure, wherein, including four foretell moving contact, fixed subassembly, reset piece and connecting piece, four moving contact mutual independence sets up, and parallel arrangement about four moving contact is two-to-one, connecting piece connects two sets of moving contact about, two sets of moving contact form with fixed contact complex centre gripping groove about, fixed subassembly passes moving contact, connecting piece are fixed, reset piece cover is established on fixed subassembly, reset piece one end offsets with adjacent moving contact, reset piece other end offsets with fixed subassembly.

By adopting the structure, the clamping groove is formed, then the elastic clamping effect is formed through the reset piece, the connection stability between the moving contact and the fixed contact is improved, the whole electric connection is more stable, and the heat dissipation effect is good.

The fixed component comprises a fixed rod and a clamping piece, wherein a limiting part is arranged at one end of the fixed rod, the other end of the fixed rod penetrates through the moving contact and the connecting piece, a clamping groove is formed in the other end of the fixed rod, and the clamping piece is matched with the clamping groove.

The fixed rod is matched with the clamping piece, so that the movable contact and the connecting piece form a connecting and fixing effect, and the overall fixing strength is improved.

The clamping piece is provided with a first longitudinal groove and a groove, the first longitudinal groove is vertically communicated with the groove, the clamping piece is sleeved on the fixing rod, and the clamping piece radially rotates relative to the fixing rod.

Adopt the setting of first longitudinal groove and recess, at the assembly in-process, the fastener is established on the dead lever through first longitudinal groove cover for the fastener is located the draw-in groove, then radial rotation fastener, makes fastener and dead lever offset, thereby realizes fixed effect, and this kind of simple snap-fit need not to rivet or just can realize through the instrument, and the operation is more convenient, simple.

Wherein the other end of the resetting piece is propped against the clamping piece.

The cooperation of reset piece and fastener, better formation energy storage effect.

Wherein, the stationary contact is a straight type.

Wherein, the stationary contact is 7 style of calligraphy.

Drawings

FIG. 1 is a schematic structural view of embodiment 1 of the present utility model;

fig. 2 is a front view of embodiment 1 of the present utility model;

FIG. 3 is a schematic structural view of embodiment 2 of the present utility model;

FIG. 4 is a schematic structural view showing another embodiment of the present utility model in accordance with embodiment 2;

FIG. 5 is a schematic structural view of a clip according to embodiment 2 of the present utility model;

FIG. 6 is a schematic view showing the structure of a fixing rod in embodiment 2 of the present utility model;

fig. 7 is a schematic view of the structure of embodiment 2 of the present utility model cooperating with a skateboard.

Detailed Description

Example 1:

referring to fig. 1-2, a movable contact includes a body 1.

The whole body 1 is in a long strip shape. The top surface is arranged in a plane. The top surface is provided with a plurality of through holes 11, the through holes 11 are communicated with the through grooves, and the through holes 11 are mainly used for fixing the fixing assembly. In the present embodiment, the number of through holes 11 is two.

The bottom surface is towards one side of the fixed contact, and is provided with a through groove 12 and an arc-shaped part 13, and the through groove 12 is positioned between two adjacent arc-shaped parts 13. In this embodiment, the number of through slots 12 is one, the number of arc-shaped portions 13 is two, and one through slot 12 is located between two arc-shaped portions 13. The through groove 12 penetrates through the front side surface and the rear side surface, namely the through groove 12 is a strip-shaped groove. The through hole 11 communicates with the through groove 12.

Further, the body 1 is provided as an integral molding. The integrated into one piece sets up for the moving contact processing is more convenient. In this embodiment, the body 1 is made of copper.

By adopting the structure, in the matching process of the moving contact and the fixed contact, the effect of multipoint connection is formed, the electric connection efficiency between the moving contact and the fixed contact is improved, and meanwhile, the ventilation and heat dissipation effects are formed by adopting the arrangement of the through grooves 12, and the heat dissipation effect in the use process is improved.

Example 2:

referring to fig. 3 to 7, a contact structure includes four moving contacts 10, a fixed assembly 20, a reset member 30, and a connection member 40.

The structure of the movable contact 10 is described in detail in embodiment 1, so that the description is omitted in this embodiment.

The four movable contacts 10 are mutually independent, i.e. no lamination exists between the two adjacent contacts. The four moving contacts 10 are arranged in a group in parallel up and down, namely, a matrix of 2 x 2 is formed, two clamping grooves 101 are formed at two ends of the four moving contacts 10, the clamping grooves 101 are correspondingly matched with the fixed contact 60, and an electric connection effect between the fixed contact 60 and the moving contact 10 is formed.

The number of the connecting pieces 40 is two, and the two connecting pieces 40 are respectively arranged in the clamping groove 101, wherein the height of the connecting pieces 40 is consistent with the height of the clamping groove 101. The top surface of the connecting member 40 is attached to the moving contact 10 located above, and the bottom surface of the connecting member 40 is attached to the moving contact 10 located below, so that a highly defined effect is achieved.

The number between the fixing is four, corresponding to four moving contacts 10.

The fixing assembly 20 comprises a fixing rod 201 and a clamping piece 202, wherein a limiting part 2011 is arranged on one end of the fixing rod 201, and the other end of the fixing rod 201 penetrates through a through hole of the upper moving contact 10, the connecting piece 40 and a through hole of the lower moving contact 10. The other end of the fixing rod 201 is provided with a clamping groove 2012, wherein the clamping groove 2012 is not positioned on the end part but is only near the end part.

The clamping piece 202 is provided with a first longitudinal groove 2021 and a groove 2022, the first longitudinal groove 2021 is vertically communicated with the groove 2022, the clamping piece 202 is sleeved on the fixing rod 201, and the clamping piece 202 radially rotates relative to the fixing rod 201. By adopting the arrangement of the first longitudinal groove 2021 and the groove 2022, in the assembly process, the clamping piece 202 is sleeved on the fixing rod 201 through the first longitudinal groove 2021, so that the clamping piece 202 is positioned in the clamping groove 2012, and then the clamping piece 202 is radially rotated, so that the clamping piece 202 is abutted against the fixing rod 201, and the fixing effect is realized. Here, the groove 2022 is a groove with a shallow depth, which has a certain effect of limiting and fixing.

The reset element 30 is sleeved on the fixing rod 201, in this embodiment, one end of the reset element 30 abuts against the moving contact 10 located below, and the other end of the reset element 30 abuts against the clamping element 202, so that the energy storage effect is improved. Here, the reset member 30 may have one end abutting against the limiting portion 2011 and the other end abutting against the moving contact 10 located above. Those skilled in the art can choose according to the actual needs. The return member 30 in this embodiment is preferably a spring.

As shown in fig. 3, the stationary contact 60 is in a straight shape.

As shown in fig. 4, the stationary contact 60 is 7-shaped.

Those skilled in the art can select different shapes of the stationary contact 60 according to actual needs.

By adopting the structure, the clamping groove 101 is formed, then the elastic clamping effect is formed through the reset piece 30, the connection stability between the moving contact 10 and the fixed contact 60 is improved, the whole electric connection is more stable, and the heat dissipation effect is good.

In addition, it should be noted that only one group of contact structures is disclosed in the present embodiment, the moving contact 10 is fixed on the sliding plate 50, and the sliding plate 50 slides to drive the moving contact 10 to move, so as to achieve the separation or communication effect between the moving contact 10 and the fixed contact 60, and the structure of the sliding plate 50 is the prior art, so that only the schematic connection between the sliding plate 50 and the moving contact 10 is shown in the present embodiment, and the specific structure of the sliding plate 50 is not repeated.

Claims

1. A moving contact, characterized in that: the device comprises a body, wherein a through groove and arc-shaped parts are arranged on one side of the body facing the static contact, and the through groove is positioned between two adjacent arc-shaped parts.

2. A moving contact according to claim 1, wherein: a through hole is formed in one side, far away from the fixed contact, of the body, and the through hole is communicated with the through groove.

3. A moving contact according to claim 1, wherein: the body is integrally formed.

4. A contact structure, characterized in that: the movable contact comprises four movable contacts, a fixing assembly, a reset piece and a connecting piece, wherein the movable contacts, the fixing assembly, the reset piece and the connecting piece are arranged independently of each other, the four movable contacts are arranged in a parallel mode from top to bottom, the connecting piece is connected with the upper movable contact and the lower movable contact, the upper movable contact and the lower movable contact form clamping grooves matched with the fixed contacts, the fixing assembly penetrates through the movable contacts and the connecting piece to be fixed, the reset piece is sleeved on the fixing assembly, one end of the reset piece abuts against the adjacent movable contacts, and the other end of the reset piece abuts against the fixing assembly.

5. A contact structure as set forth in claim 4, wherein: the fixed subassembly includes dead lever and fastener, is equipped with spacing portion on the dead lever one end, and the dead lever other end passes moving contact, connecting piece, is equipped with the draw-in groove on the other end of dead lever, and the fastener cooperates with the draw-in groove.

6. A contact structure as set forth in claim 5, wherein: the clamping piece is provided with a first longitudinal groove and a groove, the first longitudinal groove is vertically communicated with the groove, the clamping piece is sleeved on the fixing rod, and the clamping piece radially rotates relative to the fixing rod.

7. A contact structure as set forth in claim 6, wherein: the other end of the resetting piece is propped against the clamping piece.

8. A contact structure as set forth in claim 4, wherein: the static contact is in a straight shape.

9. A contact structure as set forth in claim 4, wherein: the static contact is 7-shaped.