Environment-friendly upper isolation circuit breaker

Abstract

The utility model discloses an environment-friendly upper isolation circuit breaker, which comprises an isolation switch and a circuit breaker structure, the isolation switch comprises a moving knife assembly, the moving knife assembly comprises a moving knife and a moving knife holder, the moving knife is rotatably connected with the moving knife holder, the moving knife is provided with a sectional contact, the circuit breaker structure comprises a vacuum arc-extinguishing chamber, the moving knife holder is fixedly connected with the vacuum arc-extinguishing chamber, and the vacuum arc-extinguishing chamber is provided with a contact. According to the utility model, by optimizing the structure of the conductive copper piece, the effective lap joint number and the heat dissipation area between the lap joint surfaces are increased, the heat dissipation efficiency is effectively improved, and the temperature rise test requirement of 1250A * 1.1 is realized in dry air.

Description

Technical Field

[0001] This utility model belongs to the field of electrical technology and relates to an environmentally friendly isolation circuit breaker. Background Technology

[0002] 12kA / 630A environmental protection cabinets are gradually replacing sulfur hexafluoride gas ring main units, but replacing 1250A ring main units is quite difficult. The difficulties are: 1. The heat dissipation of dry air is only one-third that of sulfur hexafluoride gas, resulting in poor heat dissipation performance of the environmental protection cabinet; 2. The enclosed isolation blade structure is not conducive to heat dissipation. As a result, the upper limit parameters of the actual operation of the 1250A ring main unit can only meet the temperature rise test of 1.0 times. Summary of the Invention

[0003] In order to overcome at least one deficiency of the prior art, this utility model provides an environmentally friendly upper isolation circuit breaker.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an environmentally friendly upper isolation circuit breaker, comprising an isolation switch and a circuit breaker structure, the isolation switch comprising a moving knife assembly, the moving knife assembly comprising a moving knife and a moving knife base, the moving knife and the moving knife base being rotatably connected, the moving knife being provided with segmented contacts, the circuit breaker structure comprising a vacuum interrupter, the moving knife base being fixedly connected to the vacuum interrupter.

[0005] Furthermore, the moving blade has a protrusion, and the moving blade seat has a recess. The protrusion and the recess fit together, and the moving blade and the moving blade seat are rotatably connected by a spring contact seat.

[0006] Furthermore, the moving blade assembly also includes a double-point disc spring, which is fixed to the moving blade and close to the segmented contact points.

[0007] Furthermore, the vacuum interrupter includes a stationary end, which has four fixed points, and the stationary end is fixedly connected to the moving knife holder through the fixed points.

[0008] Furthermore, the moving tool holder includes a connecting end and a mounting end. The connecting end is fixed to the mounting end to form a T-shaped structure, and the connecting end is a flat plate structure.

[0009] Furthermore, the disconnecting switch also includes a disconnecting switch frame, a disconnecting switch stationary contact, a disconnecting switch transmission component, a disconnecting switch main shaft, and a grounding stationary contact. The disconnecting switch main shaft is rotatably connected to the disconnecting switch frame, the disconnecting switch transmission component is connected to the disconnecting switch main shaft, the moving blade is connected to the disconnecting switch transmission component, and the disconnecting switch stationary contact is fixedly connected to the insulating crossbeam of the disconnecting switch frame through the main busbar.

[0010] Furthermore, the main busbar is configured as a flexible copper foil connection.

[0011] Furthermore, the circuit breaker structure also includes a circuit breaker frame, a circuit breaker drive component, a circuit breaker main shaft, a mounting assembly, and branch copper busbars. The circuit breaker main shaft is rotatably connected to the circuit breaker frame, and the circuit breaker drive component is connected to the circuit breaker main shaft and the vacuum interrupter.

[0012] Furthermore, the branch copper busbar is configured as a flexible connection structure.

[0013] Furthermore, the mounting assembly includes an upper mounting plate and a lower mounting plate, which are snapped into the circuit breaker frame, and the moving knife holder is connected to the vacuum interrupter chamber via the upper mounting plate.

[0014] In summary, the advantages of this utility model are as follows:

[0015] 1) The present invention features segmented contacts 1200 on the moving blade, which increases the number of contacts of the disconnecting switch in the closed state and effectively improves the efficiency of electronic passage; at the same time, it can better overlap and ensure effective connection. Compared with the existing method of overlapping through a whole structure, it does not require high processing and assembly technology, thus greatly reducing the difficulty of installing and processing parts.

[0016] 2) The double-point disc spring of this utility model can effectively provide contact stability of the edge contact points and provide independent contact pressure for segmented contacts.

[0017] 3) The moving blade 120 of this utility model adopts a non-enclosed structure, which is conducive to heat dissipation.

[0018] 4) The convex 1201 structure of the moving blade 120 of this utility model effectively increases the contact area compared with the existing flat surface. When the convex 1201 and the recess 1221 are fitted together, the moving blade 120 and the moving blade seat 122 overlap, thereby effectively increasing the number of contact points between the moving blade 120 and the moving blade seat 122. At the same time, the fitting of the convex 1201 and the recess 1221 is relatively flexible and has room for movement. Combined with the spring contact seat 123, in the closed state, it can prevent invalid overlap points caused by the skewness of the moving blade, and ensure the effectiveness of the overlap when there is an allowable angular offset between the moving blade and the mounting plane of the moving blade seat.

[0019] 5) The connecting end 1221 of the moving knife holder of this utility model has a flat plate structure, which effectively increases the heat dissipation area.

[0020] 6) The main busbar 31 of this utility model is a flexible copper foil. The copper foil has a thin sheet structure. Compared with the main busbar structure of the existing copper busbar, the copper foil has a larger surface area and stronger heat dissipation capacity for the same volume of copper busbar and copper foil.

[0021] 7) The moving knife holder mounting end 1222 of this utility model is provided with four mounting holes 1223. The four mounting holes 1223 are symmetrically distributed in pairs with the connecting end 1221 as the center. The stationary end 211 of the vacuum interrupter 21 is provided with a fixing point 2111 opposite to the four mounting holes 1223. The fasteners connect the mounting holes 1223 and the fixing points 2111 to securely connect the mounting end 1222 to the vacuum interrupter 21. The symmetrical structure of the mounting holes 1223 and the fixing points 2111 can reduce the lateral width of the main circuit, which facilitates the subsequent expansion of the lower isolation structure and the reduction of the overall height.

[0022] 8) The branch copper busbar 25 of this utility model is a flexible connection structure, which eliminates the overlapping points and thus improves the heat dissipation capacity of the conductive parts; in addition, the flexible connection is a copper foil structure with a larger surface area and a larger heat dissipation area, thereby effectively improving the heat dissipation efficiency.

[0023] 9) This utility model improves the heat dissipation efficiency by optimizing the structure of the conductive copper parts, increasing the effective number of overlaps between the overlapping surfaces and the heat dissipation area, and achieving the temperature rise test requirement of 1250A×1.1 in dry air. Attached Figure Description

[0024] Figure 1 This is an isometric drawing of the isolation circuit breaker of this utility model.

[0025] Figure 2 This is an isometric drawing of the disconnector switch of this utility model.

[0026] Figure 3 This is a schematic diagram of the internal structure of the disconnecting switch of this utility model. Disconnecting switch 1 and circuit breaker structure.

[0027] Figure 4 This is an isometric drawing of the moving tool of this utility model.

[0028] Figure 5 This is a schematic diagram of the moving blade of this utility model.

[0029] Figure 6 This is a schematic diagram of the moving tool holder of this utility model.

[0030] Figure 7 This is a partial sectional view of the moving blade and moving blade holder assembly of this utility model.

[0031] Figure 8 This is an isometric view of the circuit breaker structure of this utility model.

[0032] Figure 9 This is an isometric view of the circuit breaker structure of this utility model from another direction.

[0033] Figure 10 This is a side view of the circuit breaker structure of this utility model.

[0034] Figure 11 This is an isometric view of the upper mounting plate of this utility model in one direction.

[0035] Figure 12 This is an isometric view of the upper mounting plate of this utility model from another direction.

[0036] Figure 13 This is an isometric view of the assembly of the moving tool holder and the upper mounting plate of this utility model.

[0037] Figure 14 This is an isometric drawing of the vacuum interrupter chamber of this utility model. Detailed Implementation

[0038] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0039] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0040] In this embodiment of the invention, all directional indicators (such as up, down, left, right, front, back, horizontal, vertical, etc.) are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0041] Due to installation errors and other reasons, the parallel relationship referred to in the embodiments of this utility model may actually be an approximate parallel relationship, and the perpendicular relationship may actually be an approximate perpendicular relationship.

[0042] Example 1:

[0043] like Figures 1-14As shown, an environmentally friendly upper-disconnect circuit breaker includes a disconnecting switch 1 and a circuit breaker structure 2. The disconnecting switch 1 includes a moving knife assembly 12, which includes a moving knife 120 and a moving knife seat 122. The moving knife 120 and the moving knife seat 122 are rotatably connected by a spring contact seat 123. The moving knife 120 is provided with segmented contacts 1200. The circuit breaker structure 2 includes a vacuum interrupter 21, and the moving knife seat 122 is fixedly connected to the vacuum interrupter 21.

[0044] The segmented contact 1200 is specifically as follows:

[0045] The moving blade 120 is provided with a protruding contact block, which is arc-shaped and distributed along the width of the moving blade 120. The moving blade 120 is provided with a number of grooves 1205, the length direction of which is consistent with the length direction of the moving blade 120. The grooves 1205 divide the contact block into a number of segmented contacts 1200. The segmented contacts 1200 increase the number of contact points of the disconnecting switch in the closed state, effectively improving the efficiency of electronic passage. At the same time, it can better overlap and ensure effective connection. Compared with the existing method of overlapping with a whole structure, this embodiment does not require high processing and assembly technology, thereby greatly reducing the difficulty of installing and processing parts.

[0046] The moving blade assembly 12 also includes a double-point disc spring 121, which is fixed to the moving blade 120 and close to the segmented contact 1200. The double-point disc spring 121 is distributed along the width direction of the moving blade 120. The existing single-point disc spring is used. The single-point disc spring is far from the contact. If the moving blade is too large, the force transmission to the edge of the moving blade will be weakened. The double-point disc spring adopted in this application can effectively provide contact stability of the edge contact and provide independent contact pressure for the segmented contact.

[0047] The non-conventional enclosed structure of the moving blade 120 in this application is beneficial for heat dissipation.

[0048] The two ends of the moving blade 120 are a fixed end 1203 and a free end 1204. The segmented contact 1200 is located at the free end 1204, and the fixed end 1203 is rotatably connected to the moving blade holder 122.

[0049] The moving blade 120 and the moving blade seat 122 are connected by a spring contact seat 123. Specifically, the spring contact seat 123 includes a pin 1231 and a spring 1232. The moving blade 120 is provided with a protrusion 1201, and the moving blade seat 122 is provided with a recess 1221. The protrusion 1201 and the recess 1221 are fitted together. The pin 1231 passes through the moving blade 120 and the moving blade seat 122 to rotatably connect the two. The spring 1232 is disposed between the end faces of the moving blade 120 and the pin 1231.

[0050] The pin 1231 adopts a conventional structure to achieve a rotatable connection between the moving blade 120 and the moving blade holder 122, which will not be described in detail here.

[0051] Compared to existing flat surfaces, the convex hull 1201 structure of the moving knife 120 effectively increases the contact area. When the convex hull 1201 and the recess 1221 are fitted together, the moving knife 120 and the moving knife seat 122 overlap, thereby effectively increasing the number of contact points between the moving knife 120 and the moving knife seat 122. At the same time, the fitting of the convex hull and the recess 1221 is relatively flexible and has room for movement. In the closed state, it can prevent invalid overlap points caused by the skewness of the moving knife, and ensure the effectiveness of the overlap when there is an allowable angular offset between the moving knife and the mounting plane of the moving knife seat.

[0052] The end face of the moving blade 120 away from the moving blade holder 122 is provided with an inner groove 1202, and the end face of the pin 1231 and the spring 1232 are located in the inner groove 1202.

[0053] The moving tool holder 122 is designed as a T-shaped structure, including a connecting end 1221 and a mounting end 1222. The connecting end 1221 is fixed to the mounting end 1222 to form a T-shaped structure. The connecting end 1221 is connected to the moving tool 120. Compared with the existing round bar type moving tool holder, the connecting end 1221 of this application is a flat plate structure, which effectively increases the heat dissipation area.

[0054] The mounting end 1222 is provided with four mounting holes 1223, which are symmetrically distributed in pairs around the connecting end 1221. The stationary end 211 of the vacuum interrupter 21 is provided with fixing points 2111 opposite to the four mounting holes 1223. Fasteners such as screws and bolts connect the mounting holes 1223 and the fixing points 2111 to securely connect the mounting end 1222 to the vacuum interrupter 21. The symmetrical structure of the mounting holes 1223 and the fixing points 2111 can reduce the lateral width of the main circuit, which facilitates the subsequent expansion of the lower isolation structure and the reduction of the overall height.

[0055] The disconnector switch 1 also includes a disconnector switch frame 11, a disconnector switch stationary contact 13, a disconnector switch transmission component 14, a disconnector switch main shaft 15, and a grounding stationary contact 16. The disconnector switch main shaft 15 is rotatably connected to the disconnector switch frame 11, the disconnector switch transmission component 14 is connected to the disconnector switch main shaft 15, the moving blade 120 is connected to the disconnector switch transmission component 14, and the moving blade 120 contacts the disconnector switch stationary contact 13 or the grounding stationary contact 16.

[0056] The disconnector frame 11 includes a front plate 111, a rear plate 112, a grounding beam 113, and an insulating beam 114. The front plate 111 and the rear plate 112 are arranged in parallel, as are the grounding beam 113 and the insulating beam 114. The two ends of the grounding beam 113 and the insulating beam 114 are fixedly connected to the front plate 111 and the rear plate 112, respectively.

[0057] Specifically, the connection between the insulating crossbeam 114 and the front plate 111 and rear plate 112 of the disconnecting switch frame is as follows: the front plate 111 of the disconnecting switch frame is provided with a first bending plate, and the rear plate 112 of the disconnecting switch frame is provided with a second bending plate. The two ends of the insulating crossbeam 114 are fastened to the first bending plate and the second bending plate by bolts.

[0058] Specifically, the grounding beam 113 is connected to the front plate 111 and the rear plate 112 of the disconnecting switch frame. The grounding beam 113 has a third bending plate and a fourth bending plate at both ends. The third bending plate is fastened to the front plate 111 of the disconnecting switch frame by bolts, and the fourth bending plate is fastened to the rear plate 112 of the disconnecting switch frame by bolts.

[0059] The stationary contact 13 of the disconnecting switch is fixedly connected to the insulating beam 114 via the main busbar 31. The main busbar 31 is a flexible copper foil with a thin sheet structure. Compared with the existing copper busbar structure, the copper foil has a larger surface area and stronger heat dissipation capacity for the same volume of copper busbar and copper foil.

[0060] The grounding stationary contact 16 is fixed to the grounding crossbeam 113 via the grounding busbar.

[0061] The moving blade 120 is connected to the main shaft 15 of the disconnecting switch through the disconnecting switch transmission component 14. The main shaft 15 of the disconnecting switch transmits its motion to the moving blade 120 through the disconnecting switch transmission component 14. The moving blade 120 changes the grounding, disconnection or closing position, thereby realizing the grounding, opening and closing states of the disconnecting switch 2.

[0062] The disconnector switch transmission component 14 includes two sets of symmetrically arranged disconnector crank arms 141 and two sets of symmetrically arranged moving knife pull rods 142. The fixed end of the disconnector crank arm 141 is fixedly connected to the disconnector switch main shaft 15. The disconnector switch main shaft 15 drives the disconnector crank arm 141 to rotate synchronously. The free end of the disconnector crank arm 141 is rotatably connected to the two sets of moving knife pull rods 142 through a pin. The moving knife 120 is located between the two sets of moving knife pull rods 142 and is rotatably connected through a pin.

[0063] The disconnector switch main shaft 15 is fixed with limit pins. The limit pins are located on both sides of the disconnector crank arm 141 to limit the disconnector crank arm 141 and prevent the disconnector crank arm 141 from moving axially along the disconnector switch main shaft 15.

[0064] The output end of the disconnector spindle 15 is rotatably connected to the rear plate 112 of the disconnector frame, and the input end of the disconnector spindle 15 passes through the front plate 111 of the disconnector frame and is dynamically sealed to the front plate 111 of the disconnector frame.

[0065] In this embodiment, the disconnecting switch can be used independently in existing equipment. The structure of the disconnecting switch not described uses existing components and will not be elaborated here.

[0066] The circuit breaker structure 2 also includes a circuit breaker frame 20, a circuit breaker transmission component 22, a circuit breaker main shaft 23, a mounting assembly 24, and a branch copper busbar 25. The circuit breaker main shaft 23 is rotatably connected to the circuit breaker frame 20. The circuit breaker transmission component 22 is connected to the circuit breaker main shaft 23 and the vacuum interrupter 21. The circuit breaker main shaft 23 transmits motion to the moving end of the vacuum interrupter 21 through the circuit breaker transmission component 22 to realize the release or separation of the moving contact and the stationary contact. The mounting assembly 24 supports the vacuum interrupter 21, and the branch copper busbar 25 is designed as a flexible connection structure.

[0067] The circuit breaker frame 20 includes a circuit breaker front plate 204, a circuit breaker rear plate 202, a circuit breaker first side plate 201, and a circuit breaker second side plate 203. The circuit breaker front plate 204 and the circuit breaker rear plate 202 are arranged in parallel, and the circuit breaker first side plate 201 and the circuit breaker second side plate 203 are arranged in parallel. The circuit breaker first side plate 201 and the circuit breaker second side plate 203 are located at both ends of the circuit breaker front plate 204 and the circuit breaker rear plate 202 and are fixedly connected.

[0068] Specifically, the connection between the first side plate 201 of the circuit breaker and the front plate 204 and rear plate 202 of the circuit breaker is as follows: the first side plate 201 of the circuit breaker is provided with a fifth bending plate and a sixth bending plate on both sides. The front plate 204 of the circuit breaker is fastened to the fifth bending plate of the first side plate 201 of the circuit breaker by bolts. The rear plate 202 of the circuit breaker is fastened to the sixth bending plate of the first side plate 201 of the circuit breaker by bolts. The connection between the second side plate 203 of the circuit breaker and the front plate 204 and rear plate 202 of the circuit breaker is the same as the above connection structure, and will not be described in detail here.

[0069] The first side plate 201 of the circuit breaker is fixedly connected to the rear plate 112 of the disconnecting switch frame, and the second side plate 203 of the circuit breaker is fixedly connected to the front plate 111 of the disconnecting switch frame to realize the connection between the disconnecting switch frame 11 and the circuit breaker frame 20.

[0070] Mounting assembly 24 includes an upper mounting plate 241 and a lower mounting plate 242, which are located on the upper and lower sides of the vacuum interrupter 21 to support it. The upper mounting plate 241 and the lower mounting plate 242 are engaged with the circuit breaker front plate 204 and the circuit breaker rear plate 202.

[0071] The vacuum interrupter 21 includes a stationary end 211 and a moving end 212. The stationary end 211 is connected to the moving knife holder 122 via an upper mounting plate 241, and the moving end 212 is connected to the circuit breaker transmission component 22 via a vacuum pull rod 213.

[0072] The movable tool holder 122 is connected to the vacuum interrupter 21 via an upper mounting plate 241. Specifically, the upper mounting plate 241 has a through groove 2411 and an annular groove 2413 in the thickness direction, which are connected. The upper mounting plate 241 also has several through holes 2412, which are symmetrically distributed in pairs around the through groove 2411. The through holes 2412 correspond one-to-one with the mounting holes 1223 and the fixing points 2111. The connecting end 1221 of the movable tool holder 122 passes through the through groove 2411, and the mounting end 1222 and the stationary end 211 are located in the annular groove 2413. Fasteners such as screws and bolts are used to fasten the upper mounting plate 241, the movable tool holder 122, and the vacuum interrupter 21 by connecting the through holes 2412, the mounting holes 1223, and the fixing points 2111.

[0073] Conventional branch copper busbars are structures that combine flexible connections with copper busbars. This structure adds an overlap point between the two, increasing the circuit resistance and making heat dissipation difficult. In contrast, the branch copper busbar 25 of this application is a flexible connection structure as a whole, eliminating the overlap point and thus improving the heat dissipation capacity of the conductive parts. In addition, the flexible connection is a copper foil structure with a larger surface area, providing a larger heat dissipation area and thus effectively improving heat dissipation efficiency.

[0074] The branch copper busbar 25 is L-shaped and is connected to the circuit breaker frame 20. Specifically, the circuit breaker front plate 204 and the circuit breaker rear plate 202 are provided with horizontal slots. The branch copper busbar 25 includes a horizontal forming plate and a vertical forming plate. The horizontal forming plate passes through the horizontal slot and overlaps the circuit breaker front plate 204 and the circuit breaker rear plate 202. The branch copper busbar 25 located between the circuit breaker front plate 204 and the circuit breaker rear plate 202 is connected to the vacuum tie rod 213. The vertical forming plate is located on the outside of the circuit breaker frame 20 and is fixedly connected to the circuit breaker frame 20 by bolts.

[0075] The output end of the circuit breaker main shaft 23 is rotatably connected to the first side plate 201 of the circuit breaker, and the input end of the circuit breaker main shaft 23 passes through the second side plate 203 of the circuit breaker and is dynamically sealed to the second side plate 203 of the circuit breaker.

[0076] The circuit breaker drive component 22 in this embodiment adopts the structure of a conventional circuit breaker. The selected model is based on the circuit breaker structure and has not been modified in this application; therefore, it is not limited or elaborated upon here.

[0077] In this embodiment, the circuit breaker structure can be used independently in existing equipment. Structures not described in the circuit breaker structure use existing components and will not be elaborated here.

[0078] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort should fall within the protection scope of this utility model.

Claims

1. An environmentally friendly, top-disconnecting circuit breaker, characterized in that: It includes a disconnector switch and a circuit breaker structure. The disconnector switch is located above the circuit breaker structure and the two are fixedly connected. The disconnector switch includes a moving knife assembly, which includes a moving knife and a moving knife base. The moving knife and the moving knife base are rotatably connected. The moving knife is provided with segmented contacts.

2. The environmentally friendly upper-disconnect circuit breaker according to claim 1, characterized in that: The moving blade has a protrusion, and the moving blade seat has a recess. The protrusion and the recess fit together, and the moving blade and the moving blade seat are rotatably connected by a spring contact seat.

3. The environmentally friendly upper-disconnect circuit breaker according to claim 1, characterized in that: The moving blade assembly also includes a double-point disc spring, which is fixed to the moving blade and close to the segmented contact points.

4. The environmentally friendly upper-disconnect circuit breaker according to claim 1, characterized in that: The circuit breaker structure includes a vacuum interrupter, which includes a stationary end with four fixed points. The stationary end is fixedly connected to the moving knife holder through the fixed points.

5. The environmentally friendly upper-disconnect circuit breaker according to claim 1, characterized in that: The moving tool holder includes a connecting end and a mounting end. The connecting end is fixed to the mounting end to form a T-shaped structure, and the connecting end is a flat plate structure.

6. The environmentally friendly upper-disconnect circuit breaker according to claim 1, characterized in that: The disconnector also includes a disconnector frame, a disconnector stationary contact, a disconnector transmission component, a disconnector main shaft, and a grounding stationary contact. The disconnector main shaft is rotatably connected to the disconnector frame, the disconnector transmission component is connected to the disconnector main shaft, the moving blade is connected to the disconnector transmission component, and the disconnector stationary contact is fixedly connected to the insulating crossbeam of the disconnector frame via a main busbar.

7. An environmentally friendly upper-disconnect circuit breaker according to claim 6, characterized in that: The main busbar is made of flexible copper foil.

8. The environmentally friendly upper-disconnect circuit breaker according to claim 1, characterized in that: The circuit breaker structure also includes a circuit breaker frame, a circuit breaker drive component, a circuit breaker main shaft, a mounting assembly, and branch copper busbars. The circuit breaker main shaft is rotatably connected to the circuit breaker frame, and the circuit breaker drive component is connected to the circuit breaker main shaft and the vacuum interrupter.

9. An environmentally friendly upper-disconnect circuit breaker according to claim 8, characterized in that: The branch copper busbar is designed with a flexible connection structure.

10. An environmentally friendly upper-disconnect circuit breaker according to claim 8, characterized in that: The mounting assembly includes an upper mounting plate and a lower mounting plate, which are snapped together with the circuit breaker frame. The moving knife holder and the vacuum interrupter are connected through the upper mounting plate.

Images