Disconnecting switch moving contact assembly

Abstract

The utility model relates to the field of disconnecting switches, and particularly discloses a moving contact assembly of a disconnecting switch. The disconnecting switch moving contact assembly comprises a lower shell, an upper shell, a rotating shaft and a plurality of fixing seats installed on the outer side of the rotating shaft, the upper shell is fixedly connected with a plurality of upper static contacts, the two ends of the lower shell are fixedly connected with a plurality of lower static contacts respectively, each fixing seat is provided with a moving contact, a connecting piece is connected between every two fixing seats, and the connecting pieces are connected with the rotating shaft. The rotating shaft is arranged on the inner walls of the connecting pieces in a penetrating mode, each moving contact is composed of two moving contact pieces and two insulating pieces, one side of the fixing base is provided with limiting grooves used for allowing the moving contact pieces and the insulating pieces to be inserted, and the fixing base is provided with limiting pieces used for fixing the moving contacts. According to the invention, through the cooperation of the limiting piece, the insertion block and the insertion slot and the connection of the insertion rod and the insertion port, the installation and disassembly of the moving contact are more convenient and faster, the time required for replacing the moving contact can be shortened, the operation complexity can be reduced, and the installation and replacement efficiency of the moving contact is improved.

Description

Technical Field

[0001] This application relates to the field of disconnecting switches, and more particularly to a moving contact assembly for a disconnecting switch. Background Technology

[0002] A disconnecting switch is an electrical device primarily used to isolate circuits in an electrical system to ensure the safety of equipment and personnel. The moving contact is the movable part of the disconnecting switch; driven by the operating mechanism, it makes contact with or separates from the stationary contact, thus controlling the flow of the circuit.

[0003] Existing disconnect switches mainly consist of a housing, a rotating shaft, a fixed base, a moving contact, and a stationary contact. The stationary contact is fixedly mounted on the housing, and the moving contact is mounted on the fixed base. The rotating shaft passes through the fixed base and is connected to the housing. By rotating the rotating shaft, the fixed base and the moving contact can be rotated, thereby realizing the opening and closing operation between the moving and stationary contacts to complete the circuit on / off control.

[0004] In the prior art, the moving contact and the rotating shaft are connected by a fixed base, and the moving contact is mounted on the fixed base. When a moving contact is damaged, it is not convenient to replace it quickly, which will affect the installation and replacement efficiency of the moving contact. Utility Model Content

[0005] To reduce the time and complexity of replacing moving contacts, this application provides a moving contact assembly for a disconnecting switch.

[0006] The technical solution adopted in this application for a disconnector moving contact assembly is as follows:

[0007] A moving contact assembly for a disconnecting switch includes a lower housing, an upper housing mounted on the upper side of the lower housing, a rotating shaft mounted between the upper and lower housings, and multiple fixed seats mounted on the outside of the rotating shaft. The upper housing is fixedly connected to multiple upper stationary contacts, and the two ends of the lower housing are respectively fixedly connected to multiple lower stationary contacts. Each fixed seat is equipped with a moving contact. When the rotating shaft rotates, the two ends of the moving contact connect to the outside of the upper and lower stationary contacts respectively, realizing the opening and closing of the switch. A connecting member connects between every two fixed seats. The rotating shaft passes through the inner wall of the multiple connecting members. Each moving contact consists of two moving contact pieces and two insulating pieces. A limiting groove is provided on one side of each fixed seat for inserting the moving contact pieces and insulating pieces. A limiting member for fixing the moving contact is installed on the fixed seat.

[0008] By adopting the above technical solution, a complete isolating switch moving contact assembly can be formed by combining components such as the upper housing, lower housing, rotating shaft, fixed base, moving contact, and stationary contact. Through the rotation of the rotating shaft, the moving contact can connect or disconnect with the upper and lower stationary contacts, thereby realizing the opening and closing functions of the switch. The setting of the connecting parts ensures a stable connection between multiple fixed bases, making the entire assembly more stable during operation and reducing the risk of failure due to loose parts. The design of the limit groove and limit parts allows the moving contact to be firmly installed on the fixed base, making the installation and replacement of the moving contact more convenient.

[0009] Optionally, each of the moving contact piece and the insulating piece is provided with a through hole for the limiting member to pass through, and the two ends of the limiting member are respectively threaded to the inner walls of the two ends of the limiting groove.

[0010] By adopting the above technical solution, through holes are made in the moving contact and the insulating sheet, allowing the limiting component to pass through and be threaded to the inner walls of both ends of the limiting groove. This makes the moving contact more firmly fixed on the fixed base, preventing the moving contact from loosening or falling off during use, and improving the stability and reliability of the component. The installation and removal of the moving contact are also more convenient, as the operation can be completed simply by tightening or loosening the limiting component, thereby improving the replacement efficiency of the moving contact.

[0011] Optionally, two insert blocks are fixedly connected to one end of both the moving contact piece and the insulating piece, and the inner wall of the limiting groove is provided with a slot for inserting the insert blocks.

[0012] By adopting the above technical solution, the design of the plug and slot allows the moving contact and insulating sheet to be positioned more accurately when inserted into the limiting slot. It also increases the contact area and friction with the fixed seat, further enhancing the stability of the moving contact within the fixed seat and preventing displacement during operation. This helps improve the assembly accuracy of the moving contact, ensures good contact between the moving and stationary contacts, and thus improves the electrical performance of the disconnecting switch.

[0013] Optionally, a positioning ring is abutted between the two moving contact pieces, and the positioning ring is sleeved on the outside of the limiting member.

[0014] By adopting the above technical solution, the positioning ring can position the relative position between the two moving contacts, preventing the moving contacts from shifting or shaking during operation, ensuring the contact stability and consistency between the moving contacts, thereby improving the electrical performance and reliability of the disconnecting switch; the design of the positioning ring being sleeved on the outside of the limiting component makes the entire moving contact assembly more compact, saving space, and also facilitating assembly and maintenance.

[0015] Optionally, a positioning groove for limiting the connecting member is provided between the upper housing and the lower housing, and the two ends of the fixing seat are respectively rotatably connected to the inner wall of the positioning groove.

[0016] By adopting the above technical solution, the positioning groove can restrict the position of the connector, preventing the connector from shaking or shifting during operation, thereby ensuring the stable connection of the connector to the fixed seat and enhancing the structural stability of the entire assembly. The two ends of the fixed seat are rotatably connected to the inner wall of the positioning groove, allowing the fixed seat to rotate more smoothly, reducing friction and resistance during rotation, and improving the opening and closing efficiency of the disconnecting switch.

[0017] Optionally, multiple insertion rods are fixedly connected to both ends of the limiting member, and each of the fixed seats has an insertion port at both ends for inserting the insertion rods.

[0018] By adopting the above technical solution, the design of the fitting of the plug and the socket makes the connection between the limiting component and the fixed seat tighter and more stable, further enhancing the fixing effect of the fixed seat in the component, preventing the fixed seat from loosening or falling off during operation, and also increasing the contact points between the limiting component and the fixed seat, improving the overall strength and reliability of the entire component, so that it can better withstand the action of various forces during operation.

[0019] Optionally, a rotating groove for rotating the fixed seat is provided between the upper housing and the lower housing, and the rotating groove communicates with the positioning groove.

[0020] By adopting the above technical solution, the setting of the rotating slot can provide sufficient space for the rotation of the fixed seat, ensuring that the fixed seat can rotate smoothly, thereby realizing the opening and closing actions between the moving contact and the stationary contact, and ensuring the normal operation of the disconnecting switch.

[0021] Optionally, the upper housing and the lower housing are threadedly connected by a plurality of fasteners for fixing the upper stationary contact and the lower stationary contact, respectively.

[0022] By adopting the above technical solution, the upper and lower stationary contacts can be firmly fixed to the upper and lower housings with fasteners, preventing the stationary contacts from loosening or falling off during operation, improving the installation reliability of the stationary contacts, and making the installation and removal of the stationary contacts more convenient and quick. The operation can be completed simply by tightening or loosening the fasteners, thereby improving the replacement efficiency of the stationary contacts.

[0023] In summary, this application has the following beneficial effects:

[0024] 1. This application makes the installation and removal of the moving contact more convenient and quick by using the cooperation of the limiting component, the plug and the slot, and the connection of the plug rod and the socket. It can reduce the time and operation complexity required to replace the moving contact, thereby improving the efficiency of the installation and replacement of the moving contact.

[0025] 2. This application, through structures such as limiting grooves, limiting components, positioning rings, positioning grooves, and rotating grooves, can ensure the stability of the moving contact assembly during operation, prevent the moving contact and the fixed seat from loosening or falling off during operation, ensure good contact between the moving contact and the stationary contact, thereby improving the overall electrical performance and reliability of the disconnecting switch. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the moving contact assembly of the disconnector switch according to an embodiment of this application;

[0027] Figure 2 These are front views of the lower and upper housings according to an embodiment of this application;

[0028] Figure 3 yes Figure 2 Cross-sectional view along line AA;

[0029] Figure 4 This is a schematic diagram of the structure of the rotating shaft and the fixed base according to an embodiment of this application;

[0030] Figure 5 This is a structural schematic diagram of the fixing base and connecting member according to an embodiment of this application;

[0031] Figure 6 This is a schematic diagram of the structure of the moving contact piece and the insulating piece in an embodiment of this application.

[0032] Explanation of reference numerals in the attached drawings: 1. Lower housing; 2. Upper housing; 3. Rotating shaft; 4. Fixed base; 41. Limiting groove; 411. Slot; 42. Insertion port; 5. Moving contact; 51. Moving contact piece; 52. Insulating piece; 53. Through hole; 54. Insert block; 55. Positioning ring; 6. Upper stationary contact; 7. Lower stationary contact; 8. Connecting piece; 81. Insert rod; 9. Limiting piece; 10. Rotating groove; 11. Positioning groove; 12. Fastener. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0034] This application discloses a moving contact assembly for an isolating switch.

[0035] Reference Figure 1The disconnector switch moving contact 5 assembly includes a lower housing 1 and an upper housing 2 for mounting the moving contact 5 assembly. Multiple rotating grooves 10 and multiple positioning grooves 11 are formed on adjacent sides of the lower housing 1 and upper housing 2, and the multiple positioning grooves 11 communicate with the multiple rotating grooves 10. A fixing seat 4 for fixing the moving contact 5 is provided inside the positioning groove 11, and both ends of the fixing seat 4 are rotatably connected to the inner wall of the rotating groove 10. A connecting piece 8 connected to the fixing seat 4 is rotatably connected to the inner wall of each rotating groove 10. The connecting piece 8 ensures the synchronicity of the rotation of the multiple fixing seats 4 and the stability of the connection between the structures. A moving contact 5 is fixedly installed on one side of each fixing seat 4. Multiple upper stationary contacts 6, which connect and cooperate with one end of the moving contact 5, are fixedly installed on the upper housing 2. Lower stationary contacts 7, which connect and cooperate with the moving contact 5, are fixedly installed at both ends of the lower housing 1. The contact points of the multiple upper stationary contacts 6 and lower stationary contacts 7 extend into the inner side of the positioning groove 11 to ensure the stability of the connection between the moving contact 5 and these contact points. A rotating shaft 3 is inserted through the middle of multiple fixed seats 4 and connecting parts 8. The shaft rotates to drive the multiple fixed seats 4 and connecting parts 8 to rotate inside the positioning groove 11 and rotating groove 10, thereby driving the moving contact 5 to rotate. This allows the two ends of the moving contact 5 to switch between the upper stationary contact 6 and the lower stationary contact 7, thus completing the closing and opening of the disconnecting switch.

[0036] Each upper stationary contact 6 and lower stationary contact 7 has a fastener 12 threaded through its middle portion and connected to the inner wall of the upper housing 2 or the lower housing 1. The fastener 12 is used to fix the upper stationary contact 6 and lower stationary contact 7 in the upper housing 2 or the lower housing 1 respectively, ensuring the stability of the upper stationary contact 6 and lower stationary contact 7, preventing the upper stationary contact 6 and lower stationary contact 7 from becoming loose or misaligned when in contact with the moving contact 5, ensuring the stability of the contact between the moving contact 5 and the upper stationary contact 6 and lower stationary contact 7, and improving the energizing effect of the disconnecting switch.

[0037] refer to Figure 3 , Figure 4 and Figure 6Each moving contact 5 consists of two moving contact pieces 51 and an insulating sheet 52. A limiting groove 41 for installing the moving contact pieces 51 and insulating sheet 52 is provided on one side of the fixed base 4. A slot 411 is provided on the lower bottom wall of the limiting groove 41. A plug 54 is fixedly connected to one end of each moving contact piece 51 and insulating sheet 52. After attaching one moving contact piece 51 and one insulating sheet 52, they are inserted into the limiting groove 41 until the plug 54 is inserted into the inner wall of the slot 411. At this point, one side of the insulating sheet 52 is connected to the side wall of the limiting groove 41. The above steps are repeated to complete the installation of another moving contact piece 51 and insulating sheet 52. Each limiting groove 41 is provided with two positioning rings 55 connected to the moving contact piece 51. The two positioning rings 55 are connected to each other on adjacent sides, and their opposite sides abut against one side of the moving contact piece 51. The positioning rings 55 are used to ensure the distance between the two moving contact pieces 51 and to press the two moving contact pieces 51 together so that one side of the insulating sheet 52 is pressed against the inner wall of the limiting groove 41 to prevent misalignment.

[0038] Reference Figure 3 , Figure 4 and Figure 5 One end of the fixed base 4 is provided with a limiting member 9 for fixing the moving contact 5. In this application, the limiting member 9 consists of a bolt and a nut. In other embodiments, the limiting member 9 can also be a screw or the like. The limiting member 9 passes through the inner side of the limiting groove 41. Each moving contact piece 51 and insulating piece 52 has a through hole 53 for the limiting member 9 to pass through. After the limiting member 9 passes through the through hole 53 of the moving contact piece 51 and insulating piece 52 on one side, it passes through two positioning rings 55, and finally passes through the through hole 53 of the moving contact piece 51 and insulating piece 52 on the other side, and passes through the limiting groove 41. Then the bolt and nut are tightened to fix the moving contact piece 51 and insulating piece 52 in the limiting groove 41, thus completing the installation of the moving contact 5.

[0039] Reference Figure 4 , Figure 5 Each connector 8 has multiple insertion rods 81 fixedly connected to both ends, and each fixing base 4 has multiple insertion ports 42 for inserting the insertion rods 81 at both ends. The connection between the insertion rods 81 and the insertion ports 42 is used to further ensure the synchronization of the connection between the fixing base 4 and the connecting rod. In this application, the number of insertion rods 81 and insertion ports 42 is four. In other embodiments, the number of insertion rods 81 and insertion ports 42 can also be two, three, or more.

[0040] The implementation principle of the moving contact 5 assembly of the disconnector switch in this application embodiment is as follows: When installing the moving contact 5 assembly, firstly, multiple moving contact pieces 51 are respectively attached to multiple insulating pieces 52 in pairs. Then, the moving contact pieces 51 and insulating pieces 52 are moved and inserted into the limiting groove 41 of the fixing base 4 until the insert block 54 is fully inserted into the inner wall of the slot 411. At this time, the insulating piece 52 and the moving contact piece 51 abut against the inner wall of the limiting groove 41. Secondly, two positioning rings 55 are installed together between the two moving contact pieces 51. Then, the limiting member 9 is inserted into the limiting groove 41 through one end of the fixing base 4, and passes through the through hole 53 of the moving contact piece 51 and the insulating piece 52 and the positioning ring 55. Then, the nut of the limiting member 9 is tightened to complete the installation of the moving contact 5. Thirdly, Insert the rotating shaft 3 into the hole of the fixed base 4, and then insert the connector 8 into the hole, so that the insertion rod 81 at one end of the connector 8 is inserted into the insertion port 42 at one end of the fixed base 4. Repeat this operation to complete the connection of multiple fixed bases 4, multiple connectors 8 and rotating shaft 3. Fourth step, place the installed fixed base 4 and connector 8 into the positioning groove 11 and rotating groove 10 opened between the lower housing 1 and the upper housing 2 respectively, and then fix the upper housing 2 on the lower housing 1 to complete the installation of the moving contact 5 assembly, so that when the rotating shaft 3 is rotated, it can drive the fixed base 4 and connector 8 to rotate, so that the two ends of the moving contact 5 can be connected to the contacts of the upper stationary contact 6 and the lower stationary contact 7 respectively, thereby realizing the closing and opening of the disconnecting switch.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A moving contact assembly for a disconnecting switch, comprising a lower housing (1), an upper housing (2) mounted on the upper side of the lower housing (1), a rotating shaft (3) mounted between the upper housing (2) and the lower housing (1), and a plurality of fixed seats (4) mounted on the outside of the rotating shaft (3), characterized in that: The upper housing (2) is fixedly connected with multiple upper stationary contacts (6), and the two ends of the lower housing (1) are fixedly connected with multiple lower stationary contacts (7). Each fixed seat (4) is equipped with a moving contact (5). When the rotating shaft (3) rotates, the two ends of the moving contact (5) are connected to the upper stationary contact (6) and the lower stationary contact (7) respectively, so as to realize the opening and closing of the switch. A connecting piece (8) is connected between each pair of fixed seats (4). The rotating shaft (3) passes through the inner wall of the multiple connecting pieces (8). Each moving contact (5) is composed of two moving contact pieces (51) and two insulating pieces (52). A limiting groove (41) is opened on one side of the fixed seat (4) for the moving contact pieces (51) and the insulating pieces (52) to be inserted. A limiting piece (9) for fixing the moving contact (5) is installed on the fixed seat (4).

2. The moving contact assembly of the disconnector switch according to claim 1, characterized in that: Each of the moving contact piece (51) and the insulating piece (52) is provided with a through hole (53) for the limiting member (9) to pass through, and the two ends of the limiting member (9) are respectively threaded to the inner walls of the two ends of the limiting groove (41).

3. The moving contact assembly of the disconnector switch according to claim 1, characterized in that: Two plugs (54) are fixedly connected to one end of the moving contact (51) and the insulating sheet (52), and the inner wall of the limiting groove (41) is provided with a slot (411) for the plugs (54) to be inserted.

4. The moving contact assembly of the disconnector switch according to claim 2, characterized in that: A positioning ring (55) abuts between the two moving contact pieces (51), and the positioning ring (55) is sleeved on the outside of the limiting member (9).

5. The moving contact assembly of the disconnector switch according to claim 1, characterized in that: A positioning groove (11) for limiting the connecting piece (8) is provided between the upper shell (2) and the lower shell (1), and the two ends of the fixed seat (4) are rotatably connected to the inner wall of the positioning groove (11).

6. The moving contact assembly of the disconnector switch according to claim 1, characterized in that: Both ends of the limiting member (9) are fixedly connected with multiple insertion rods (81), and both ends of each fixed seat (4) are provided with insertion ports (42) for inserting the insertion rods (81).

7. The moving contact assembly of the disconnector switch according to claim 1, characterized in that: A rotating groove (10) for rotating the fixed seat (4) is provided between the upper shell (2) and the lower shell (1), and the rotating groove (10) is connected to the positioning groove (11).

8. The moving contact assembly of the disconnector switch according to claim 1, characterized in that: The upper housing (2) and the lower housing (1) are threaded together by a plurality of fasteners (12) for fixing the upper stationary contact (6) and the lower stationary contact (7).

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