CN218471779U

CN218471779U - Switch contact structure

Info

Publication number: CN218471779U
Application number: CN202222359644.2U
Authority: CN
Inventors: 付欣欣; 黄文体
Original assignee: Zhejiang Chint Electrics Co Ltd
Current assignee: Zhejiang Chint Electrics Co Ltd
Priority date: 2022-09-06
Filing date: 2022-09-06
Publication date: 2023-02-10
Anticipated expiration: 2032-09-06

Abstract

The utility model belongs to the technical field of low-voltage apparatus, a switch contact structure is disclosed. The switch contact structure comprises a supporting piece, a mounting frame and a contact assembly, wherein a plurality of mounting grooves are formed in a first side face of the supporting piece at intervals, a mounting frame is arranged in each mounting groove, a second side face, perpendicular to the first side face, of the supporting piece is provided with a limiting hole group, and the limiting hole group and the mounting grooves are arranged right oppositely and comprise two limiting holes. A plurality of contact subassemblies set up respectively in spacing punch combination and wear to establish the mounting bracket, and contact subassembly includes two contact plates and two shell fragments, and the supporting member is stretched out at the both ends of two contact plates, and two contact plates set up relatively, lie in two spacing downtheholess respectively, and the shell fragment is connected on the mounting bracket, and the both ends of shell fragment buckle to the contact plate and link to each other with the contact plate butt to the tip that makes two contact plates can be close to each other or keep away from. The assembly efficiency of the switch contact structure in the dual-power switch is improved by assembling a plurality of contact assemblies on the same supporting piece.

Description

Switch contact structure

Technical Field

The utility model relates to a low-voltage apparatus technical field especially relates to switch contact structure.

Background

The dual-power switch is used as the core of an emergency standby power supply system, is used for realizing automatic and reliable conversion between a common power supply and a standby power supply, and is commonly used in important occasions such as nuclear power, wharfs and hospitals. The dual-power switch is generally composed of a plurality of contacts, the contacts of the existing dual-power switch are generally single parts, the number of parts is large during assembly, the assembly is complicated, and the requirement on the assembly consistency is high; there are some integral contact structures, but there is no fixing part for the contact, the contact needs to be fixed separately during assembly, and the assembly efficiency is low.

Accordingly, there is a need for a switch contact structure that solves the above problems in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a switch contact structure has solved the loaded down with trivial details, the low problem of assembly efficiency of current dual power switch's contact equipment.

To achieve the purpose, the utility model adopts the following technical proposal:

a switch contact structure comprising:

the supporting piece is provided with a plurality of mounting grooves on a first side surface at intervals, a limiting hole group is arranged on a second side surface of the supporting piece, which is perpendicular to the first side surface, and the limiting hole group is arranged opposite to the mounting grooves and comprises two limiting holes;

a plurality of mounting brackets, wherein one mounting bracket is arranged in each mounting groove;

a plurality of contact subassemblies set up respectively in spacing punch combination wears to establish the mounting bracket, contact subassembly includes two contact plates and two shell fragments, two the both ends of contact plate are stretched out the backup element, two the contact plate sets up relatively, is located two respectively spacing downthehole, the shell fragment connect in on the mounting bracket, just the both ends of shell fragment to the contact plate buckle and with the contact plate butt links to each other, so that two the tip of contact plate can be close to each other or keep away from.

As an alternative scheme, one of the mounting frame and the elastic sheet is provided with a connecting hole, the other one is provided with a connecting bulge, and the connecting bulge can be clamped into the connecting hole.

As an alternative, a through hole is formed in the mounting frame, the contact assembly penetrates through the through hole, and the connecting protrusion or the connecting hole is formed in the inner wall of the through hole.

Alternatively, the mounting bracket is a frame structure made of a bent plate material, and the through hole is formed in the middle of the frame structure.

As an alternative, two ends of the contact plate, which are on a side facing the elastic sheet, are provided with limiting members, and the limiting members are configured to limit the end of the elastic sheet from being separated from the contact plate.

As an alternative, the limiting part is a limiting protrusion, and two ends of the elastic piece are respectively abutted to the limiting protrusion.

As an alternative, one side of the limiting protrusion facing the elastic sheet is provided with an inclined surface, and the end part of the elastic sheet is correspondingly bent in the direction away from the limiting protrusion so as to be attached to the inclined surface.

As an alternative, the limiting part is a limiting groove, and the end part of the elastic sheet is limited in the limiting groove.

Alternatively, the side face, which is not opposite to the elastic sheet, of the contact plate abuts against the inner wall of the limiting hole.

As an alternative, the elastic sheet is of a smooth arc-shaped structure.

Has the advantages that:

the utility model provides a switch contact structure holds contact assembly through setting up a plurality of spacing hole groups on the support, and set up the mounting bracket and support the shell fragment fixedly, the both ends of shell fragment link to each other with the contact plate butt and be fixed in spacing downthehole with the contact plate, thereby realize the installation of a plurality of contact assemblies on the support through the cooperation of mounting bracket and shell fragment, because the shell fragment has elasticity, make the both ends of contact plate can produce certain displacement, the effect that the tip that reaches two contact plates can be close to each other or keep away from. When assembling in dual power switch, a plurality of contact subassemblies assemble along with the support piece simultaneously, are favorable to keeping the uniformity of assembly, avoid a plurality of contact subassemblies's location link simultaneously, have improved the packaging efficiency.

Drawings

Fig. 1 is a schematic structural diagram of a switch contact structure provided in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a supporting member provided by an embodiment of the present invention;

fig. 3 is a schematic cross-sectional structural view of a switch contact structure provided in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a mounting frame according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a contact assembly according to an embodiment of the present invention.

In the figure:

1. a support member; 11. mounting grooves; 12. limiting hole groups; 121. a limiting hole;

2. a mounting frame; 21. a connecting projection; 22. a through hole;

3. a contact assembly; 31. a contact plate; 311. a limiting bulge; 32. a spring plate; 321. and connecting the holes.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1, the present embodiment provides a switch contact structure, which includes a support 1, a plurality of mounting frames 2, and a plurality of contact assemblies 3, wherein the plurality of contact assemblies 3 are mounted on the same support 1 through the mounting frames 2, so as to realize the collective assembly of the plurality of contact assemblies 3. The support member 1 is configured as a long bar-shaped columnar structure, and the plurality of contact assemblies 3 are sequentially arranged and mounted on the support member 1. Specifically, a plurality of mounting grooves 11 are arranged on a first side face of the supporting member 1 at intervals, a mounting frame 2 is arranged in each mounting groove 11, and with reference to fig. 2, a second side face, perpendicular to the first side face, of the supporting member 1 is provided with a limit hole group 12, the limit hole group 12 is arranged opposite to the mounting grooves 11, and the limit hole group 12 comprises two limit holes 121. A plurality of contact assemblies 3 set up respectively in spacing punch combination 12 and wear to establish mounting bracket 2, contact assembly 3 includes two contact plates 31 and two shell fragments 32, and the both ends of two contact plates 31 are stretched out supporting part 1, and two contact plates 31 set up relatively, lie in two spacing holes 121 respectively, and shell fragment 32 is connected on mounting bracket 2, and the both ends of shell fragment 32 are buckled to contact plate 31 and are linked to each other with contact plate 31 butt to the tip that makes two contact plates 31 can be close to each other or keep away from.

Hold contact element 3 through set up a plurality of spacing punch combination 12 on support 1, and set up mounting bracket 2 and support the shell fragment 32 fixedly, the both ends of shell fragment 32 link to each other with contact plate 31 butt and be fixed in spacing hole 121 with contact plate 31 in, thereby realize the installation of a plurality of contact element 3 on support 1 through mounting bracket 2 and the cooperation of shell fragment 32, because shell fragment 32 has elasticity, make the both ends of contact plate 31 can produce certain displacement, reach the effect that the tip of two contact plates 31 can be close to each other or keep away from. When assembling in dual power switch, a plurality of contact subassembly 3 are assembled simultaneously along with supporting part 1, are favorable to keeping the uniformity of assembly, avoid a plurality of contact subassembly 3's location link simultaneously, have improved the packaging efficiency.

Further, as shown in fig. 3 to 5, in order to fix the elastic sheet 32 on the mounting bracket 2, one of the mounting bracket 2 and the elastic sheet 32 is provided with a connecting hole 321, and the other is provided with a connecting protrusion 21, and the connecting protrusion 21 can be snapped into the connecting hole 321 to fix the elastic sheet 32. In this embodiment, the connecting protrusion 21 is disposed on the mounting frame 2, the connecting hole 321 is disposed on the elastic sheet 32, when the switch contact structure is assembled, the mounting frame 2 is pushed into the mounting groove 11, and then the two elastic sheets 32 are respectively placed into the two limiting holes 121, so that the connecting protrusion 21 is clamped into the connecting hole 321 to fix the elastic sheet 32, and then the contact plate 31 is inserted into the limiting holes 121, because the elastic sheet 32 has elasticity, deformation can occur under the extrusion of the contact plate 31, and the insertion of the contact plate 31 cannot be blocked, and the contact plate 31 can be tightly supported after the elastic sheet 32 deforms.

Specifically, as shown in fig. 4, the mounting block 2 is provided with a through hole 22, the contact assembly 3 passes through the through hole 22, and the inner wall of the through hole 22 is provided with a connection protrusion 21 or a connection hole 321. The mounting frame 2 is preferably a frame structure made of a bent plate material, a through hole 22 is formed in the middle of the frame structure, and the connecting protrusion 21 on the mounting frame 2 can be formed by stamping. Of course, the mounting frame 2 can also be manufactured by casting or injection molding, but the bending of the plate is more beneficial to reduce the manufacturing cost.

In order to prevent the contact plate 31 from being unstably mounted due to the relative movement between the contact plate 31 and the spring plate 32, the two ends of the contact plate 31 facing the spring plate 32 are provided with limit pieces for limiting the end of the spring plate 32 from separating from the contact plate 31. Specifically, as shown in fig. 5, two ends of the contact plate 31 facing the spring plate 32 may be provided with a limiting protrusion 311, two ends of the spring plate 32 respectively abut against the limiting protrusion 311, and the limiting protrusion 311 blocks the spring plate 32. Preferably, one side of the limiting protrusion 311 facing the elastic sheet 32 is provided with an inclined surface, and the end of the elastic sheet 32 is bent correspondingly in the direction away from the limiting protrusion 311 so as to be attached to the inclined surface. In other embodiments, a limiting groove may be further disposed at two ends of one side of the contact plate 31 facing the elastic sheet 32, the end of the elastic sheet 32 is limited in the limiting groove, and the limiting groove can also form a blocking effect on the elastic sheet 32. The specific structural form of the limiting member is not limited, and the relative displacement between the contact plate 31 and the spring plate 32 can be limited.

Furthermore, through the design of the aperture size of the limiting hole 121, the side surface of the contact plate 31, which is not opposite to the elastic sheet 32, abuts against the inner wall of the limiting hole 121, so that the contact plate 31 is prevented from shaking in the limiting hole 121, and the contact plate 31 is more firmly mounted.

Preferably, referring to fig. 3, the elastic sheet 32 has a smooth arc structure, the connection hole 321 or the connection protrusion 21 is disposed at a central position of the elastic sheet 32, and the elastic sheet 32 is disposed in the middle of the contact plate 31 to provide a uniform elastic force to the contact plate 31, so that the two end portions of the contact plate 31 can be smoothly opened and closed.

It is obvious that 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. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Switch contact structure, its characterized in that includes:

the support piece (1), a plurality of mounting grooves (11) are arranged on a first side surface of the support piece (1) at intervals, a limiting hole group (12) is arranged on a second side surface, perpendicular to the first side surface, of the support piece (1), the limiting hole group (12) is arranged opposite to the mounting grooves (11), and the limiting hole group (12) comprises two limiting holes (121);

a plurality of mounting brackets (2), wherein one mounting bracket (2) is arranged in each mounting groove (11);

a plurality of contact assemblies (3), set up respectively in wear to establish in spacing punch combination (12) mounting bracket (2), contact assembly (3) include two contact plates (31) and two shell fragment (32), two stretch out at the both ends of contact plate (31) support piece (1), two contact plate (31) set up relatively, are located two respectively in spacing hole (121), shell fragment (32) connect in on mounting bracket (2), just the both ends of shell fragment (32) to contact plate (31) buckle and with contact plate (31) butt links to each other, so that two the tip of contact plate (31) can be close to each other or keep away from.

2. A switch contact structure according to claim 1, characterized in that one of the mounting frame (2) and the spring plate (32) is provided with a connection hole (321), and the other is provided with a connection protrusion (21), wherein the connection protrusion (21) can be snapped into the connection hole (321).

3. A switch contact structure according to claim 2, characterized in that a through hole (22) is provided on the mounting frame (2), the contact assembly (3) passes through the through hole (22), and the connecting projection (21) or the connecting hole (321) is provided on an inner wall of the through hole (22).

4. A switch contact structure according to claim 3, characterized in that the mounting frame (2) is a frame structure made of bent sheet material, the middle of which forms the through hole (22).

5. The switch contact structure according to any one of claims 1 to 4, characterized in that both ends of the side of the contact plate (31) facing the spring plate (32) are provided with a limit stop configured to limit the separation of the end of the spring plate (32) from the contact plate (31).

6. The switch contact structure according to claim 5, wherein the limiting member is a limiting protrusion (311), and two ends of the spring (32) abut against the limiting protrusion (311), respectively.

7. The switch contact structure according to claim 6, wherein one side of the limiting protrusion (311) facing the spring plate (32) is provided with an inclined surface, and the end of the spring plate (32) is bent correspondingly in the direction away from the limiting protrusion (311) so as to be attached to the inclined surface.

8. The switch contact structure according to claim 5, wherein the limiting member is a limiting groove, and an end of the spring (32) is limited in the limiting groove.

9. The switch contact structure according to any one of claims 1 to 4, wherein a side of the contact plate (31) not opposite to the spring plate (32) abuts against an inner wall of the limiting hole (121).

10. A switch contact structure according to any one of claims 1-4, characterized in that the spring plate (32) is a rounded arc structure.