Static contact assembly of contactor
Through the overlapping connection and plug-in positioning structure of the main connecting board and the secondary connecting board of the static contact plate assembly, the complex structure and difficulty of assembly of the contactor static contact plate are solved, and a higher current carrying capacity and compact overall structure are achieved. .
Patent Information
- Application Number
- CN202420121161.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-17
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-01-17
AI Technical Summary
The static contacts in existing contactors have complex structures, many parts, troublesome assembly, and the processing cost of multiple parallel static contacts is high and the applicability is narrow.
A static contact piece assembly is designed, in which two or more static contact piece are connected by a stacked connection between the main connecting plate and the secondary connecting plate, increasing thickness, achieving parallel connection, and fixing with plug-in positioning structure and fasteners. Simplify structure and assembly.
It realizes the simple structure of the static contact plate assembly and is convenient to assemble, and improves the current carrying capacity. The overall structure is compact and beautiful, and the connection is reliable.
Smart Images
Figure CN222214066U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of contactors, in particular to a static contact piece assembly of a contactor. Background Art
[0002] The static contact is an important component of the contactor product, which has the functions of conducting electricity and striking arcs.
[0003] At present, the contact piece structure used in contactor products in the prior art generally includes a first transverse section and a second transverse section arranged in parallel along the longitudinal direction, one end of the first transverse section and one end of the second transverse section are connected through a vertical section, the other end of the first transverse section is provided with a static contact, and the other end of the second transverse section is connected with a terminal. For example, the Chinese invention patent application recently applied by the applicant - an arc-starting device for a contactor (CN115732267A) discloses an existing static contact piece structure.
[0004] However, in actual application, a contactor is usually provided with multiple static contacts, and these static contacts need to be connected by conductive copper bars to realize parallel connection of multiple static contacts. As a result, the overall structure formed by connecting these static contacts is complex, with many parts and components, and the assembly is also troublesome. At present, there are also existing methods to integrally process multiple parallel static contacts of the contactor, but the applicability is narrow and the processing cost is high. Summary of the invention
[0005] The utility model provides a static contact piece assembly of a contactor, which has a simple structure, is convenient to assemble, and has better current carrying capacity.
[0006] The static contact piece assembly of the contactor of the utility model comprises at least two static contact pieces, wherein the static contact piece comprises a first transverse section, a second transverse section, and a vertical section connected between one end of the first transverse section and one end of the second transverse section, the other end of the first transverse section is used for conducting contact with a moving contact, and the other end of the second transverse section is integrally connected with a connecting plate, wherein the connecting plate of one of the static contact pieces is a main connecting plate, and the connecting plates of the other static contact pieces are auxiliary connecting plates, and the auxiliary connecting plates of the other static contact pieces can be stacked and connected on the main connecting plate of one of the static contact pieces, and the parallel connection between the static contacts is realized by the conductive connection between the main connecting plate and the auxiliary connecting plate, and there is a stacking relationship between the main connecting plate and the auxiliary connecting plate, so the thickness is increased and the static contacts have a higher current carrying capacity.
[0007] Furthermore, the main connecting plate of one of the static contact pieces is arranged at a higher or lower horizontal position than its second transverse section, and the auxiliary connecting plate of the other static contact piece is arranged at a lower or higher horizontal position than its second transverse section. The connecting plate and the second transverse section of the static contact piece are connected by a bent connecting section, and the main connecting plate is stacked and connected above the auxiliary connecting plate. When the main connecting plate and the auxiliary connecting plate are stacked and connected together, the first transverse section and the second transverse section of all the static contact pieces can be arranged in a flush position, so that the overall structure of the static contact piece assembly is more compact and beautiful, and the installation of the static contact piece is also convenient.
[0008] Furthermore, a plug-in positioning structure is provided between the main connection plate and the auxiliary connection plate, and the plug-in positioning structure includes a protrusion and a groove for matching the plug-in positioning. The protrusion and the groove of the plug-in positioning structure can be respectively provided on the main connection plate and the auxiliary connection plate, and the positions of the protrusion and the groove can also be swapped. Through the plug-in positioning cooperation of the protrusion and the groove, the static contact pieces can be connected at a specific position, which facilitates the installation and fixation of the static contact pieces.
[0009] Furthermore, a plurality of first connecting holes are correspondingly provided on the main connecting plate and the auxiliary connecting plate, and the main connecting plate and the auxiliary connecting plate can be connected and fixed through the cooperation between the first connecting holes and the fasteners. During installation, preliminary positioning can be achieved through the above-mentioned plug-in positioning structure, and then the fasteners are passed through the first connecting holes of the main connecting plate and the auxiliary connecting plate to achieve connection and fixation.
[0010] Furthermore, the other end of the first transverse section is provided with a through hole, and one end of the second transverse section is provided with a second connecting hole at a position corresponding to the through hole. The connection and fixation between the stationary contact piece and the contactor housing is achieved by a fastener inserted through the second connecting hole, and a screwdriver or other screwing tool can pass through the through hole to facilitate screwing of the fastener at the second connecting hole.
[0011] Furthermore, there are three static contact pieces, namely the first, second and third static contact pieces, the first static contact piece is distributed in the middle position between the second static contact piece and the third static contact piece, the connecting plate of the first static contact piece is the main connecting plate, the connecting plate of the second static contact piece and the third static contact piece is the auxiliary connecting plate, both sides of the main connecting plate have flanges extending in both directions, and the side corresponding to the auxiliary connecting plate of the second static contact piece and the third static contact piece has a flange extending in the middle direction between the two, thereby improving the contact area and connection reliability of the main connecting plate and the auxiliary connecting plate.
[0012] The beneficial effects of the utility model are: the parallel connection of the static contact pieces is realized by overlapping the connection between the main connection plate and the auxiliary connection plate, the connection structure is simple, the connection is convenient, the connection part has a large thickness, and thus has a better current carrying capacity. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural diagram of an embodiment of the utility model;
[0014] Figure 2 It is a structural exploded view of an embodiment of the utility model;
[0015] Figure 3 A cross-sectional view of an embodiment of the utility model;
[0016] Figure 4 It is a side view of an embodiment of the utility model. DETAILED DESCRIPTION
[0017] The embodiment of the static contact piece assembly of the contactor of the utility model is as follows Figure 1-4 As shown: it includes three static contact pieces, which are the first, second and third static contact pieces (11, 12, 13), respectively. In other embodiments, it can also include two or more static contact pieces, the static contact piece includes a first transverse section 101 and a second transverse section 102 arranged in parallel along the longitudinal direction, and a vertical section 13 connected between one end of the first transverse section 101 and one end of the second transverse section 102, the other end of the first transverse section 101 is used for conducting contact with the moving contact, and the other end of the second transverse section 102 is integrally connected with a connecting The connecting plates (21, 22) are connected to the main connecting plate 21 of the first stationary contact piece 11, and the connecting plates 2 of the second stationary contact piece 12 and the third stationary contact piece 13 are connected to the auxiliary connecting plate 22. The auxiliary connecting plates 22 of the second stationary contact piece 12 and the third stationary contact piece 13 can be connected to the main connecting plate 21 of the first stationary contact piece 11 in a stacked manner. The main connecting plate 21 and the auxiliary connecting plate 22 are electrically connected to each other to realize parallel connection between the stationary contacts. There is a stacked relationship between the main connecting plate 21 and the auxiliary connecting plate 22, so the thickness is increased and the current carrying capacity is relatively high.
[0018] In other embodiments, there may be only two or more stationary contact pieces, wherein the connection plate of one stationary contact piece is a main connection plate, and the connection plates of the other stationary contact pieces are auxiliary connection plates, and the auxiliary connection plates of the other stationary contact pieces are all conductively contacted and overlapped with the main connection plate.
[0019] In this embodiment, the main connecting plate 21 of the first stationary contact piece 11 is at a higher horizontal position than the second transverse section 102 thereof, and the auxiliary connecting plates 22 of the second stationary contact piece 12 and the third stationary contact piece 13 are at a lower horizontal position than the second transverse section 102 thereof. The connecting plates (21, 22) of each stationary contact piece and the second transverse section 102 are connected via a bent connecting section 104, and the main connecting plate 21 is superimposed and connected above the auxiliary connecting plate 22. When the main connecting plate 21 and the auxiliary connecting plate 22 are superimposed and connected together, the first transverse sections 101 and the second transverse sections 102 of all stationary contacts can be arranged at a flush position, so that the overall structure of the stationary contact piece assembly is more compact and beautiful, and the installation of the stationary contacts can also be facilitated.
[0020] In other embodiments, the main connecting plate 21 of the first stationary contact piece 11 may be at a lower horizontal position than the second transverse section 102 thereof, the auxiliary connecting plates 22 of the second stationary contact piece 12 and the third stationary contact piece 13 may be at a higher horizontal position than the second transverse section 102 thereof, and the main connecting plate 21 may be stacked and connected below the auxiliary connecting plate 22.
[0021] In this embodiment, a plug-in positioning structure is provided between the main connection plate 21 and the auxiliary connection plate 22. The plug-in positioning structure includes a protrusion 201 and a groove 202 for matching plug-in positioning. The protrusion 201 and the groove 202 of the plug-in positioning structure can be respectively provided on the main connection plate 21 and the auxiliary connection plate 22, and the positions of the protrusion 201 and the groove 202 can also be swapped. Through the plug-in positioning cooperation of the protrusion 201 and the groove 202, the static contact pieces can be connected at a specific position, which facilitates the installation and fixation of the static contact pieces.
[0022] A plurality of first connection holes 203 are correspondingly provided on the main connection plate 21 and the auxiliary connection plate 22. The main connection plate 21 and the auxiliary connection plate 22 can be connected and fixed by the cooperation between the first connection holes 203 and fasteners (such as screws). During installation, preliminary positioning can be achieved through the above-mentioned plug-in positioning structure, and then the fasteners are passed through the first connection holes 203 of the main connection plate 21 and the auxiliary connection plate 22 to achieve connection and fixation. Of course, the fasteners can also be connected to the housing of the contactor at the same time, so as to connect and fix the static contact assembly and the contactor housing.
[0023] The other end of the first transverse section 101 is provided with a through hole 103, and one end of the second transverse section 102 is provided with a second connection hole 104 at a position corresponding to the through hole 103. The connection and fixation between the stationary contact piece and the contactor housing is achieved by a fastener (such as a screw) penetrating downwardly through the second connection hole 104, and the through hole 103 can be passed through by the head of the screw and a screwdriver or other screwing tool, so that the fastener at the second connection hole 104 can be screwed conveniently.
[0024] One end of the second transverse section 102 is provided with a third connection hole 105 on both sides of the corresponding through hole 103 , and the connection and fixation between the stationary contact piece and the contactor housing are achieved by fasteners (such as screws) passing upward through the third connection hole 105 .
[0025] The first stationary contact piece 11 is distributed in the middle position between the second stationary contact piece 12 and the third stationary contact piece 13, and the two sides of the main connecting plate 21 have flanges 211 extending in both directions. The side corresponding to the auxiliary connecting plate 22 of the second stationary contact piece 12 and the third stationary contact piece 13 has a flange 221 extending in the middle direction between the two, thereby improving the contact area and connection reliability of the main connecting plate 21 and the auxiliary connecting plate 22.
[0026] The above embodiment is only one of the preferred specific embodiments of the present invention. Common changes and substitutions made by those skilled in the art within the technical solution of the present invention are all included in the protection scope of the present invention.
Claims
1. A static contact assembly of a contactor, comprising at least two static contacts, wherein the static contacts comprise a first transverse section, a second transverse section, and a vertical section connected between one end of the first transverse section and one end of the second transverse section, Features: The other end of the second transverse section is integrally connected with a connecting plate, wherein the connecting plate of one of the stationary contact pieces is a main connecting plate, and the connecting plates of the other stationary contact pieces are auxiliary connecting plates, and the auxiliary connecting plates of the other stationary contact pieces can be stacked and connected on the main connecting plate of one of the stationary contact pieces.
2. The stationary contact assembly of the contactor according to claim 1, Features: The main connecting plate of one of the stationary contact pieces is arranged at a higher or lower horizontal position than its second transverse section, the auxiliary connecting plates of the other stationary contact pieces are arranged at a lower or higher horizontal position than their second transverse sections, the connecting plates and the second transverse sections of the stationary contact pieces are connected by a bent connecting section, and the first transverse sections and the second transverse sections of all the stationary contact pieces are arranged at flush positions.
3. The stationary contact assembly of the contactor according to claim 1, Features: A plug-in positioning structure is arranged between the main connecting plate and the auxiliary connecting plate, and the plug-in positioning structure includes a protrusion and a groove for matching plug-in positioning.
4. The static contact assembly of the contactor according to claim 1 or 3, Features: The main connecting plate and the auxiliary connecting plate are correspondingly provided with a plurality of first connecting holes.
5. The stationary contact assembly of the contactor according to claim 1, Features: The other end of the first transverse section is provided with a through hole, and one end of the second transverse section is provided with a second connecting hole at a position corresponding to the through hole.
6. The stationary contact assembly of the contactor according to claim 1, Features: There are three static contact pieces, which are the first, second and third static contact pieces respectively. The first static contact piece is distributed in the middle position between the second static contact piece and the third static contact piece. The connecting plate of the first static contact piece is a main connecting plate, and the connecting plates of the second static contact piece and the third static contact piece are auxiliary connecting plates. Both sides of the main connecting plate have flanges extending in both directions, and the side corresponding to the auxiliary connecting plate of the second static contact piece and the third static contact piece has a flange extending in the middle direction between the two.