CN218769134U - Moving contact assembly - Google Patents
Moving contact assembly Download PDFInfo
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- CN218769134U CN218769134U CN202223269700.XU CN202223269700U CN218769134U CN 218769134 U CN218769134 U CN 218769134U CN 202223269700 U CN202223269700 U CN 202223269700U CN 218769134 U CN218769134 U CN 218769134U
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- movable contact
- base
- bolt
- moving contact
- connecting seat
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Abstract
The utility model discloses a moving contact assembly, which relates to the field of electrical accessories and comprises a plurality of groups of moving contact assemblies arranged side by side and a connecting seat for linkage connection of two adjacent moving contact assemblies, wherein each moving contact assembly comprises a mounting seat, a base, two moving contact plates arranged on the mounting seat and a fastening assembly transversely connected with the base, the mounting seat and the moving contact plates in a penetrating way, a conducting strip matched with the inner surfaces of the moving contact plates in a contact way is arranged between the moving contact plates, and two side walls of the base are respectively matched with the outer surfaces of the two moving contact plates in a clamping and contact way; the conducting strip is fixedly installed on the base. The utility model has the advantages of good working stability.
Description
Technical Field
The utility model relates to an electrical fittings field, concretely relates to moving contact assembly.
Background
The movable contact assembly in the existing molded case circuit breaker is generally characterized in that two movable contact plates are hinged on a base, the two movable contact plates are arranged oppositely, the outer surfaces of two sides of the two movable contact plates are in contact with mounting lugs of the base, the base is a copper seat, the movable contact is in contact with the copper seat to conduct electricity, in addition, for example, a low-voltage molded case circuit breaker movable contact device disclosed by the publication No. CN209515464U in 20191018 is disclosed in the publication No. of the base, the movable contact is clamped by a first rotor and a second rotor, the conduction efficiency is two faces, but the structure is quite unstable, when the movable contact plate is in contact with and separated from a fixed contact plate, the contact area between the movable contact plate and the base is easy to reduce, the condition of conductive resistance is caused to increase, and the defect of poor working stability is caused.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of background art, the utility model provides a moving contact assembly that job stabilization nature is good.
The utility model discloses the technical scheme who adopts: a movable contact assembly comprises a plurality of groups of movable contact assemblies arranged side by side and a connecting seat for linkage connection of two adjacent movable contact assemblies, wherein each movable contact assembly comprises a mounting seat, a base, two movable contact plates arranged on the mounting seat and a fastening assembly transversely penetrating and connecting the base, the mounting seat and the movable contact plates; the conducting strip is fixedly installed on the base.
The conducting strip is riveted and installed on the base.
The fastening components comprise a first fastening component and a second fastening component, the first fastening component corresponds to the two groups of moving contact components at two ends, and the second fastening component corresponds to the moving contact component in the middle.
The first fastening assembly includes:
the first bolt transversely penetrates through the mounting seat, the base, the movable contact plate and the conducting plate;
the first nut is embedded in the connecting seat and is in threaded fit with the tail end of the first bolt;
and the protecting cover is sleeved on the bolt, and a first elastic piece for abutting the bolt and the side wall of the mounting seat is arranged between the protecting cover and the side wall of the mounting seat.
The second fastening assembly includes:
the hollow sleeve transversely penetrates through the mounting seat, the base, the movable contact plate and the conducting plate;
the second bolt penetrates through the connecting seat and is in threaded fit with the hollow sleeve;
the mounting seat and the connecting seat are provided with a second elastic piece which is abutted against the mounting seat and sleeved on the excircle of the hollow sleeve, and the side wall of the connecting seat is provided with a groove for accommodating the second elastic piece and the hollow sleeve.
And an insulating sheet is arranged at the position of the connecting seat between the first bolt and the second bolt.
The side wall of the mounting seat is provided with a plurality of positioning insertion blocks inserted into the positioning insertion grooves.
The base and the conducting strip are made of copper.
The utility model has the advantages that: this technical scheme is through setting up the conducting strip between the movable contact board, installs the conducting strip on the base in addition, has increased the electrically conductive area of movable contact board, has reduced resistivity, reduces the temperature rise, has guaranteed job stabilization's advantage.
Drawings
Fig. 1 is a schematic structural diagram of a movable contact assembly according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of the connecting seat and the mounting seat.
Figure 3 is a schematic view of the structure of the movable contact assembly in the end position.
Fig. 4 is a schematic view of a disassembled structure of the movable contact assembly in the intermediate position.
Fig. 5 is a schematic structural diagram of the moving contact assembly in the molded case circuit breaker.
Detailed Description
The embodiments of the present invention will be further explained with reference to the accompanying drawings:
as shown in the figure, a movable contact assembly comprises a plurality of groups of movable contact assemblies arranged side by side and a connecting seat 2 for linkage connection of two adjacent movable contact assemblies, wherein each movable contact assembly comprises a mounting seat 16, a base 1, two movable contact plates 3 arranged on the mounting seat 16 and a fastening assembly transversely penetrating and connecting the base 1, the mounting seat 16 and the movable contact plates 3, a conducting strip 4 in contact fit with the inner surfaces of the movable contact plates 3 is arranged between the movable contact plates 3, and two side walls of the base 1 are respectively in clamping contact fit with the outer surfaces of the two movable contact plates 3; the conducting plate 4 is fixedly arranged on the base 1; this technical scheme is through setting up the conducting strip between the movable contact board, installs the conducting strip on the base in addition, has increased the electrically conductive area of movable contact board, has reduced resistivity, reduces the temperature rise, has guaranteed job stabilization's advantage.
The conducting strip 4 is riveted on the base 1, and has the advantage of stable structure.
The fastening components comprise a first fastening component and a second fastening component, the first fastening component corresponds to the two groups of moving contact components at two ends, and the second fastening component corresponds to the moving contact component in the middle.
The first fastening assembly includes:
the first bolt 5 transversely penetrates through the mounting base 16, the base 1, the movable contact plate 3 and the conducting plate 4;
a first nut 6 which is embedded in the connecting seat 2 and is in threaded fit with the tail end of the first bolt 5;
the protecting cover 7 is sleeved on the bolt, a first elastic piece 8 for abutting the bolt and the side wall of the mounting seat 16 is arranged between the protecting cover and the side wall of the mounting seat, and the first elastic piece between the protecting cover and the mounting seat 16 adopts a spring which provides elastic pretightening force for reliable contact between the base and the movable contact plate and between the conducting plate and the movable contact plate.
The second fastening assembly includes:
the hollow sleeve 9 transversely penetrates through the mounting base 16, the base 1, the movable contact plate 3 and the conducting plate 4;
a second bolt 10 which passes through the connecting seat 2 and is in threaded fit with the hollow sleeve 9;
the mounting seat 16 and the connecting seat 2 are provided with two abutting-against second elastic pieces 11 which are sleeved on the outer circle of the hollow sleeve 9, the side wall of the connecting seat 2 is provided with a groove 12 for accommodating the second elastic pieces 11 and the hollow sleeve 9, the second elastic pieces between the mounting seat 16 and the connecting seat are springs and also provide elastic pre-tightening force for reliable contact between the base and the movable contact plate and between the conducting piece and the movable contact plate, in the embodiment, two second bolts are provided, and two second elastic pieces are provided and respectively correspond to two side walls of the mounting seat 16.
And an insulating sheet 13 is arranged at the position between the first bolt 5 and the second bolt 10 of the connecting seat 2, and the insulating sheet can play a role of partition, so that the safety of the three groups of moving contact assemblies is ensured.
A plurality of positioning slots 14 are formed in two side walls of the connecting seat 2, a plurality of positioning insertion blocks 15 inserted into the positioning slots are formed in the side walls of the mounting seat 16, the positioning slots in the connecting seat are in insertion fit with the positioning insertion blocks on the base, a plurality of groups of moving contact assemblies form a whole, and all the connecting seats are driven by the operating mechanism in fig. 5 together to realize synchronous motion of the plurality of groups of moving contact assemblies.
The base 1 and the conducting strip 4 are made of copper.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
The skilled person should understand that: although the present invention has been described with reference to the above embodiments, the inventive concept is not limited to the above embodiments, and any modifications using the inventive concept are intended to be included within the scope of the present patent claims.
Claims (8)
1. A moving contact assembly is characterized in that: the movable contact assembly comprises a plurality of groups of movable contact assemblies arranged side by side and a connecting seat (2) for linking and connecting two adjacent movable contact assemblies, wherein the movable contact assemblies comprise mounting seats (16), bases (1), two movable contact plates (3) arranged on the mounting seats (16) and fastening assemblies transversely penetrating and connecting the bases (1), the mounting seats (16) and the movable contact plates (3), a conducting strip (4) in contact fit with the inner surfaces of the movable contact plates (3) is arranged between the movable contact plates (3), and two side walls of the bases (1) are respectively in clamping contact fit with the outer surfaces of the two movable contact plates (3); the conducting strip (4) is fixedly arranged on the base (1).
2. A movable contact assembly as claimed in claim 1, wherein: the conducting strip (4) is riveted on the base (1).
3. A movable contact assembly as claimed in claim 1, wherein: the fastening components comprise a first fastening component and a second fastening component, the first fastening component corresponds to two groups of moving contact components positioned at two ends, and the second fastening component corresponds to a moving contact component positioned in the middle.
4. A movable contact assembly as claimed in claim 3, wherein: the first fastening assembly includes:
the first bolt (5) transversely penetrates through the mounting seat (16), the base (1), the movable contact plate (3) and the conducting plate (4);
the first nut (6) is embedded in the connecting seat (2) and is in threaded fit with the tail end of the first bolt (5);
and the protecting cover (7) is sleeved on the bolt, and a first elastic piece (8) for abutting against the bolt and the side wall of the mounting seat (16) is arranged between the protecting cover and the side wall.
5. A movable contact assembly as claimed in claim 4, wherein: the second fastening assembly includes:
the hollow sleeve (9) transversely penetrates through the mounting seat (16), the base (1), the movable contact plate (3) and the conducting strip (4);
the second bolt (10) penetrates through the connecting seat (2) and is in threaded fit with the hollow sleeve (9);
be equipped with between mount pad (16) and connecting seat (2) and contradict the two and establish second elastic component (11) on hollow sleeve pipe (9) excircle, connecting seat (2) lateral wall is seted up and is held recess (12) of second elastic component (11) and hollow sleeve pipe (9).
6. The movable contact assembly of claim 5, wherein: the connecting seat (2) is provided with an insulating sheet (13) at a position between the first bolt (5) and the second bolt (10).
7. The movable contact assembly of claim 1, wherein: the two side walls of the connecting seat (2) are provided with a plurality of positioning slots (14), and the side wall of the mounting seat (16) is provided with a plurality of positioning insertion blocks (15) inserted into the positioning slots.
8. The movable contact assembly of claim 1, wherein: the base (1) and the conducting strip (4) are made of copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223269700.XU CN218769134U (en) | 2022-12-07 | 2022-12-07 | Moving contact assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223269700.XU CN218769134U (en) | 2022-12-07 | 2022-12-07 | Moving contact assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218769134U true CN218769134U (en) | 2023-03-28 |
Family
ID=85680910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223269700.XU Active CN218769134U (en) | 2022-12-07 | 2022-12-07 | Moving contact assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218769134U (en) |
-
2022
- 2022-12-07 CN CN202223269700.XU patent/CN218769134U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |