A solid cabinet

Abstract

The utility model provides a kind of solid cabinet, including cabinet, shell cover, be arranged in the arc extinguishing mechanism of shell, isolation mechanism and drive mechanism of drive arc extinguishing mechanism, isolation mechanism open-close brake, the installation cavity with one end being open is set in the cabinet, the one end of the installation cavity opening opposite of the cabinet is equipped with wiring terminal, the arc extinguishing mechanism is installed in the central axis direction of wiring terminal, copper bar is installed on the wiring terminal, the shell cover is equipped with incoming line terminal, it is characterized by: the end of the wiring terminal is equipped with wiring contact, the wiring contact includes fixed end in the fixed end of wiring terminal and the connecting end of protruding wiring terminal outer wall, the radial direction of the connecting end relative to the central axis of wiring terminal is equipped with positioning hole, the copper bar is installed by the cooperation of connecting piece and positioning hole, realize its width direction relative cabinet vertical installation.The utility model is convenient for production, assembly and makes copper bar be able to be vertically installed, improve the security of the utility model.

Description

Technical Field

[0001] This utility model relates to the field of solid insulation cabinet technology, specifically to a solid cabinet. Background Technology

[0002] Existing solid-state enclosures include a cabinet, a cover, an arc-extinguishing mechanism and an isolation mechanism housed within the cover. The cabinet has an open mounting cavity at one end, and a wiring terminal is provided at the end of the cabinet opposite to the opening of the mounting cavity. The cover has an inlet terminal. The wiring terminal on the cabinet is connected via a plug-in connector. The plug-in connector has a high manufacturing cost, and during wiring, the copper busbars need to be installed horizontally, resulting in a small creepage distance between adjacent copper busbars, which poses a safety hazard. Utility Model Content

[0003] Based on the above problems, the purpose of this utility model is to provide an integrated solid cabinet that is easy to produce and assemble, and allows the copper busbar to be installed vertically to improve safety.

[0004] To address the above problems, the following technical solution is provided: A solid-state switchgear includes a cabinet body, a cover, an arc-extinguishing mechanism and an isolation mechanism disposed within the cover, and a drive mechanism for opening and closing the arc-extinguishing mechanism and the isolation mechanism. The cabinet body has an open mounting cavity at one end. A terminal block is provided at one end of the cabinet body opposite to the opening of the mounting cavity. The arc-extinguishing mechanism is mounted on the central axis of the terminal block. A copper busbar is mounted on the terminal block. An inlet terminal is provided on the cover. A contact is mounted at the end of the terminal block. The contact includes a fixed end fixed within the terminal block and a connecting end protruding from the outer wall of the terminal block. A positioning hole is provided in the radial direction relative to the central axis of the terminal block. The copper busbar is installed by cooperating with the positioning hole through a connector, achieving vertical installation of its width relative to the cabinet body.

[0005] In the above structure, by setting the wiring contacts, it is easy to vertically install the copper busbar through the mounting holes, thereby increasing the spacing between two adjacent copper busbars, improving the safety of this utility model, and improving the ease of assembly of this utility model.

[0006] The present invention is further configured such that the wiring contact and the wiring terminal are integrally injection molded, and a connecting block is provided on the end of the wiring terminal extending outward relative to its axial direction, and the side of the connecting terminal connected to the copper busbar is located outside the connecting block.

[0007] Compared to existing solid-state cabinets that connect copper busbars via plug-in connectors, this invention reduces costs and facilitates production and installation of the copper busbars. By incorporating a connecting block to cover the wiring contacts, the creepage distance is further increased, thereby enhancing the safety and reliability of this invention.

[0008] The present invention is further configured such that a connecting hole is provided in the axial direction of the fixed end, and a mounting hole corresponding to the connecting hole is provided in the wiring terminal.

[0009] In the above structure, the connection hole facilitates the connection of the arc-extinguishing chamber to the wiring contact via bolts, and the mounting hole provides sufficient clearance for the bolts, thereby improving the tightness of the connection between the wiring contact and the arc-extinguishing chamber and enhancing the stability of the wiring contact.

[0010] The present invention is further provided that the outer wall of the connecting block is provided with an outwardly protruding ridge.

[0011] By adopting the above structure, the creepage distance at the connection end can be increased, and the connection end can be protected to a certain extent, thereby improving the safety of this utility model.

[0012] The present invention is further configured such that the end of the connecting block is provided with an extension block located above the copper busbar.

[0013] By adopting the above structure, the creepage distance between two adjacent wiring contacts can be further increased, thereby further improving the safety of this utility model.

[0014] The present invention is further configured such that a partition is provided inside the mounting cavity, and two partitions are provided at intervals, which cooperate with the inner wall of the cabinet to divide the mounting cavity into three mounting slots. Three wiring terminals are provided, and each terminal corresponds to one of the three mounting slots.

[0015] The above structure facilitates the installation of three-phase power in this invention, thereby improving the assembly efficiency of this invention.

[0016] The present invention is further configured such that a mounting base is provided in the mounting groove, and an isolation blade holder is mounted on the mounting base. The isolation blade holder is electrically connected to the arc extinguishing mechanism. The isolation mechanism includes a main shaft rotatably connected to the cabinet body and an isolation blade mounted on the main shaft. The isolation blade is connected to the inlet terminal through a copper-aluminum rod. A grounding aluminum busbar is mounted on the cover, and a grounding contact is mounted on the grounding aluminum busbar. The isolation blade is controlled by a drive mechanism to rotate the shaft, thereby connecting with the isolation blade holder or the grounding contact.

[0017] In the above structure, the isolation blade is controlled by the drive mechanism to rotate the shaft, so that the isolation blade is connected to the isolation holder, thereby realizing the closing of the circuit. The isolation blade drives the main shaft to reverse through the shaft, so that the isolation blade is separated from the isolation holder and connected to the grounding contact, thereby realizing the opening of the circuit.

[0018] The present invention is further configured such that the isolation blade includes a first clamping piece and a second clamping piece disposed opposite to the first clamping piece, the first clamping piece and the second clamping piece are inserted into the radial direction of the main shaft, and a clamping groove is formed between the first clamping piece and the second clamping piece to clamp onto the isolation blade holder or the grounding contact. The isolation blade holder is provided with three sets at intervals, and the ends of the first clamping piece and the second clamping piece away from the isolation blade holder are clamped to the outer side of the end of the copper-aluminum rod and pivotally connected to it.

[0019] In the above structure, by setting the first clamp and the second clamp, the isolation knife holder or the grounding contact can be clamped, thereby improving the connection strength between the two and improving the reliability of this utility model.

[0020] The present invention is further configured such that the isolation blade holder and the grounding contact are both provided with guide surfaces that cooperate with the clamping groove in the direction of the swing of the isolation blade, and the first clamping plate and the second clamping plate are both provided with protrusions on their facing surfaces.

[0021] In the above structure, by providing a guide surface, the isolating blade can be easily slidably connected to the isolating blade holder or grounding contact through the clamping groove, thereby improving the convenience of opening and closing the circuit breaker. By providing protrusions, the clamping strength when the isolating blade is clamped to the isolating blade holder or grounding contact can be improved, thereby improving the reliability and stability of opening and closing the circuit breaker.

[0022] The present invention is further provided that a storage groove is provided on the inner wall of the mounting cavity, and a fixing plate that is pivotally connected to one end of the main shaft is installed in the storage groove.

[0023] By adopting the above structure, the connection strength between the spindle and the cabinet can be improved, thereby improving the stability of the spindle and the reliability of the opening and closing of the circuit breaker. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0025] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0026] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 .

[0027] Figure 4 This is a cross-sectional view of the present invention with the shell cover removed.

[0028] Figure 5 This is a schematic diagram of the isolation mechanism in this utility model. Figure 1 .

[0029] Figure 6 This is a schematic diagram of the isolation mechanism in this utility model. Figure 2 .

[0030] Figure 7 This is a schematic diagram of the cabinet structure in this utility model.

[0031] Figure 8 This is a cross-sectional view of the cabinet in this utility model.

[0032] Figure 9 This is a schematic diagram of the wiring contact in this utility model.

[0033] The labels in the diagram have the following meanings: 1-Cabinet body; 2-Shell cover; 3-Arc extinguishing mechanism; 4-Isolation mechanism; 5-Drive mechanism; 11-Mounting cavity; 12-Terminal; 6-Copper busbar; 21-Inlet terminal; 7-Connecting contact; 71-Fixed end; 72-Connecting end; 721-Positioning hole; 121-Connecting block; 711-Connecting hole; 122-Mounting hole; 123-Protruding ridge; 124-Extension block; 8-Partition plate; 13-Mounting base; 9-Isolation blade holder; 41-Spindle; 42-Isolation blade; 01-Copper-aluminum rod; 21-Grounding aluminum busbar; 22-Grounding contact; 421-First clamping plate; 422-Second clamping plate; 02-Guide surface; 423-Protrusion; 111-Storage slot; 112-Fixed plate. Detailed Implementation

[0034] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0035] It should be noted that all directional indicators (such as up, down, left, right, front, back, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0036] like Figures 1 to 9The solid-state switchgear shown includes a cabinet body 1, a cover 2, an arc-extinguishing mechanism 3 and an isolation mechanism 4 disposed within the cover, and a drive mechanism 5 for opening and closing the arc-extinguishing mechanism 3 and the isolation mechanism 4. The cabinet body 1 has an open mounting cavity 11. A terminal 12 is provided at the end of the cabinet body 1 opposite to the opening of the mounting cavity 11. The arc-extinguishing mechanism 3 is installed along the central axis of the terminal 12. A copper busbar 6 is installed on the terminal 12. The cover 2 has an inlet terminal 21. A terminal contact 7 is installed at the end of the terminal 12. The terminal contact 7 includes a fixed end 71 fixed inside the terminal 12 and a connecting end 72 protruding from the outer wall of the terminal 12. The connecting end 72 has a positioning hole 721 in the radial direction relative to the central axis of the terminal 12. The copper busbar 6 is installed by cooperating with the positioning hole 721 through a connector, so that its width direction is vertically installed relative to the cabinet body 1.

[0037] In the above structure, by setting the wiring contact 7, the copper busbar 6 can be vertically installed through the mounting hole 122, thereby increasing the spacing between two adjacent copper busbars 6, improving the safety of the present invention, and improving the ease of assembly of the present invention.

[0038] The present invention is further configured such that the wiring contact 7 and the wiring terminal 12 are integrally injection molded, and the end of the wiring terminal 12 extends outward relative to its axial direction with a connecting block 121, and the side of the connecting end 72 that is connected to the copper busbar 6 is located outside the connecting block 121.

[0039] Compared to existing solid-state cabinets that connect the copper busbar 6 via plug-in connectors, this invention reduces costs and facilitates production and installation of the copper busbar 6. By providing the connecting block 121, the wiring contacts 7 can be covered, further increasing the creepage distance and thus improving the safety and reliability of this invention.

[0040] The present invention is further configured such that a connecting hole 711 is provided in the axial direction of the fixed end 71, and a mounting hole 122 corresponding to the connecting hole 711 is provided in the wiring end 12.

[0041] In the above structure, the connection hole 711 facilitates the connection of the arc-extinguishing chamber to the wiring contact 7 via bolts, and the mounting hole 122 provides sufficient clearance for the bolts, thereby improving the tightness of the connection between the wiring contact 7 and the arc-extinguishing chamber and enhancing the stability of the wiring contact 7.

[0042] The present invention is further provided that the outer wall of the connecting block 121 is provided with an outwardly protruding ridge 123.

[0043] By adopting the above structure, the creepage distance at the connection end 72 can be increased, and the connection end 72 can be protected to a certain extent, thereby improving the safety of this utility model.

[0044] The present invention is further configured such that the end of the connecting block 121 is provided with an extension block 124 located above the copper busbar 6.

[0045] By adopting the above structure, the creepage distance between two adjacent wiring contacts 7 can be further increased, thereby further improving the safety of this utility model.

[0046] The present invention is further configured such that a partition 8 is provided inside the mounting cavity 11, and two partitions 8 are provided at intervals, which cooperate with the inner wall of the cabinet 1 to divide the mounting cavity 11 into three mounting slots. Three wiring terminals 12 are provided, and each is respectively provided with a corresponding mounting slot.

[0047] The above structure facilitates the installation of three-phase power in this invention, thereby improving the assembly efficiency of this invention.

[0048] The present invention is further configured such that a mounting base 13 is provided in the mounting groove, and an isolation blade holder 9 is mounted on the mounting base 13. The isolation blade holder 9 is electrically connected to the arc extinguishing mechanism 3. The isolation mechanism 4 includes a main shaft 41 rotatably connected in the cabinet 1 and an isolation blade 42 mounted on the main shaft 41. The isolation blade 42 is connected to the inlet terminal 21 through a copper-aluminum rod 01. A grounding aluminum busbar 21 is mounted on the cover 2, and a grounding contact 22 is mounted on the grounding aluminum busbar 21. The isolation blade 42 is controlled by a drive mechanism 5 to rotate the shaft, so as to connect with the isolation blade holder 9 or the grounding contact 22.

[0049] In the above structure, the isolation blade 42 is controlled by the drive mechanism 5 to rotate the shaft, so that the isolation blade 42 is connected to the isolation knife seat 9, realizing the closing of the circuit. The isolation blade 42 drives the main shaft 41 to reverse through the shaft, so that the isolation blade 42 is separated from the isolation knife seat 9 and connected to the grounding contact 22, realizing the opening of the circuit.

[0050] The present invention is further configured such that the isolation blade 42 includes a first clamping piece 421 and a second clamping piece 422 disposed opposite to the first clamping piece 421. The first clamping piece 421 and the second clamping piece 422 are inserted into the radial direction of the main shaft 41. A clamping groove is formed between the first clamping piece 421 and the second clamping piece 422 to clamp onto the isolation blade holder 9 or the grounding contact 22. The isolation blade holder 9 is provided with three sets at intervals. The ends of the first clamping piece 421 and the second clamping piece 422 away from the isolation blade holder 9 are clamped to the outer side of the end of the copper-aluminum rod 01 and pivotally connected to it.

[0051] In the above structure, by setting the first clamping piece 421 and the second clamping piece 422, the isolation knife holder 9 or the grounding contact 22 can be clamped, thereby improving the connection strength between the two and improving the reliability of this utility model.

[0052] The present invention is further configured such that the isolation blade holder 9 and the grounding contact 22 are both provided with guide surfaces 02 that cooperate with the clamping groove in the direction of swinging toward the isolation blade 42, and protrusions 423 are provided on the facing surfaces of the first clamping piece 421 and the second clamping piece 422.

[0053] In the above structure, by providing the guide surface 02, the isolating blade 42 can be easily slidably connected to the isolating blade holder 9 or the grounding contact 22 through the clamping groove, thereby improving the convenience of opening and closing the circuit breaker. By providing the protrusion 423, the clamping strength when the isolating blade 42 is clamped to the isolating blade holder 9 or the grounding contact 22 can be improved, thereby improving the reliability and stability of opening and closing the circuit breaker.

[0054] The present invention is further configured such that a storage groove 111 is provided on the inner wall of the mounting cavity 11, and a fixing plate 112 that is pivotally connected to one end of the main shaft 41 is installed in the storage groove 111.

[0055] By adopting the above structure, the connection strength between the main shaft 41 and the cabinet 1 can be improved, thereby improving the stability of the main shaft 41 and the reliability of the opening and closing of the circuit breaker of this utility model.

[0056] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. A solid-state switchgear, comprising a cabinet body, a cover, an arc-extinguishing mechanism and an isolation mechanism disposed within the cover, and a drive mechanism for opening and closing the arc-extinguishing mechanism and the isolation mechanism, wherein the cabinet body has an open-ended mounting cavity, a terminal block is provided at one end of the cabinet body opposite to the opening of the mounting cavity, the arc-extinguishing mechanism is mounted on the central axis of the terminal block, a copper busbar is mounted on the terminal block, and an inlet terminal is provided on the cover, characterized in that: The terminal block is equipped with a terminal contact, which includes a fixed end fixed inside the terminal block and a connecting end protruding from the outer wall of the terminal block. The connecting end has a positioning hole in the radial direction relative to the central axis of the terminal block. The copper busbar is installed by cooperating with the positioning hole through a connector to achieve vertical installation of its width relative to the cabinet.

2. A solid-state cabinet according to claim 1, characterized in that: The wiring contact and the wiring terminal are integrally injection molded. The end of the wiring terminal extends outward in the axial direction and is provided with a connecting block. The side of the connecting terminal that is connected to the copper busbar is located outside the connecting block.

3. A solid-state cabinet according to claim 2, characterized in that: The fixed end has a connecting hole in the axial direction, and the terminal has a mounting hole corresponding to the connecting hole.

4. A solid-state cabinet according to claim 2, characterized in that: The outer wall of the connecting block is provided with outwardly protruding ridges.

5. A solid-state cabinet according to claim 4, characterized in that: The end of the connecting block is provided with an extension block located above the copper busbar.

6. A solid-state cabinet according to claim 1, characterized in that: The mounting cavity is provided with partitions, two of which are spaced apart and cooperate with the inner wall of the cabinet to divide the mounting cavity into three mounting slots. There are three wiring terminals, each corresponding to one of the three mounting slots.

7. A solid-state cabinet according to claim 6, characterized in that: The mounting slot is provided with a mounting base, on which an isolating blade holder is mounted. The isolating blade holder is electrically connected to the arc extinguishing mechanism. The isolating mechanism includes a main shaft rotatably connected to the cabinet body and an isolating blade mounted on the main shaft. The isolating blade is connected to the inlet terminal through a copper-aluminum rod. A grounding aluminum busbar is mounted on the cover, and a grounding contact is mounted on the grounding aluminum busbar. The isolating blade is controlled by a drive mechanism to rotate the shaft, thereby connecting with the isolating blade holder or the grounding contact.

8. A solid-state cabinet according to claim 7, characterized in that: The isolation blade includes a first clamping piece and a second clamping piece disposed opposite to the first clamping piece. The first clamping piece and the second clamping piece are inserted into the radial direction of the main shaft. A clamping groove is formed between the first clamping piece and the second clamping piece to clamp onto the isolation blade holder or the grounding contact. The isolation blade holder is provided with three sets at intervals. The ends of the first clamping piece and the second clamping piece away from the isolation blade holder are clamped to the outside of the end of the copper-aluminum rod and pivotally connected to it.

9. A solid-state cabinet according to claim 8, characterized in that: Both the isolation blade holder and the grounding contact have guide surfaces that cooperate with the clamping groove in the direction of the swing of the isolation blade, and protrusions are provided on the facing surfaces of the first clamping plate and the second clamping plate.

10. A solid-state cabinet according to claim 9, characterized in that: The inner wall of the mounting cavity is provided with a storage groove, and a fixing plate that is pivotally connected to one end of the main shaft is installed in the storage groove.

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